CN103906176B - A kind of method, apparatus and system of access website - Google Patents

Abstract

The embodiment of the present invention discloses a method, device and system for accessing a site, which are used for accelerating the speed of UE accessing a site and reducing the access delay. The method in this embodiment of the present invention includes: receiving a first message sent by a second station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS, or Configuration information for sending data; according to the first configuration information, send first access information to the first station to access the first station for communication, where the first access information is the SR or the SRS or ACK or NACK or the data.

Description

A method, device and system for accessing a site

technical field

The present invention relates to the field of communication technology, in particular to a method, device and system for accessing a site.

Background technique

With the development of the mobile communication system, the transmission rate and service quality that the communication system can provide are getting higher and higher, and user services also put forward higher and higher requirements on the transmission rate of the communication system. The ^3rd Generation Partnership Project (3GPP) introduced carrier aggregation (CA, Carrier Aggregation) technology, which ensures the transmission rate of the terminal (User Equipment, UE) without greatly increasing the system bandwidth. , while providing higher throughput for the UE. The simultaneous deployment of the small cell and the macro network is one of the important scenarios. In this scenario, the small cell can provide services for the UE together with the macro base station.

In the prior art, when the UE accesses the site, it needs to send a Preamble (preamble) to the base station. If the preamble can be correctly received by the base station, the base station sends a reply message (such as RA-Response random access reply message) to the UE , the UE sends a message (scheduling transmission message) to the base station after receiving it, and after the base station replies to the terminal, it replies to the terminal with a message (feedback contention resolution message).

In the prior art above, the random access process requires multiple interactions between the base station and the terminal. Therefore, in the handover process or access process of the prior art, the traditional access process of UE accessing a station has a certain delay.

Contents of the invention

Embodiments of the present invention provide a method, device and system for accessing a site, which are used to speed up the access speed of a UE to a site and reduce the access delay.

A method for accessing a site provided by an embodiment of the present invention includes:

Receive a first message sent by the second station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration information for sending data;

According to the first configuration information, send first access information to the first station to access the first station for communication, where the first access information is the SR or the SRS or ACK or NACK or the the above data.

A method for accessing a site provided by an embodiment of the present invention includes:

generating a first message for a second site;

sending a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration information of sending data , the first configuration information is used for the terminal to send first access information to the first station to access the first station, where the first access information is the SR or the SRS or ACK Either NACK or the data.

A method for accessing a site provided by an embodiment of the present invention includes:

Receive a first message sent by the first station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of sent data;

sending a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used for the terminal to send first access information to the first station to access the The first station communicates, and the first access information is the SR or the SRS or the ACK or NACK or the data.

A terminal provided by an embodiment of the present invention includes:

A receiving unit, configured to receive a first message sent by a second station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or transmission data The configuration information used;

A sending unit, configured to send first access information to the first station to access the first station for communication according to the first configuration information, where the first access information is the SR or the SRS or ACK or NACK or data.

A site provided by an embodiment of the present invention includes:

a generating unit, configured to generate a first message for a second site;

A message sending unit, configured to send a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS Or send data configuration information, where the first configuration information is used by the terminal to send first access information to the first site to access the first site, where the first access information is the SR Or the SRS or ACK or NACK or data.

A site provided by an embodiment of the present invention includes:

A receiving information unit, configured to receive a first message sent by a first station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration of sending data information;

a sending information unit, configured to send a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used for the terminal to send a first access to the first station Information is communicated by accessing the first station, and the first access information is the SR or the SRS or ACK or NACK or the data.

It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages: the UE receives the first message sent by the second station, which contains the first configuration information, and sends the first message to the first station according to the first configuration information. The first access information is used to access the first station for communication, so that the UE can access the first station for communication according to the SR or SRS or ACK or NACK or data without performing random access first, That is, it is necessary to request resources from the target base station first. Therefore, the access speed between the UE and the target base station is accelerated, and the signaling interaction process between the UE and the target base station is reduced, thereby reducing the time delay for accessing the target base station.

Description of drawings

FIG. 1 is a schematic diagram of a first embodiment of a method for accessing a site in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a second embodiment of a method for accessing a site in an embodiment of the present invention;

FIG. 3 is a schematic diagram of a third embodiment of a method for accessing a site in an embodiment of the present invention;

FIG. 4 is a schematic diagram of a fourth embodiment of a method for accessing a site in an embodiment of the present invention;

FIG. 5 is a schematic diagram of a fifth embodiment of a method for accessing a site in an embodiment of the present invention;

FIG. 6 is a schematic diagram of a sixth embodiment of a method for accessing a station in an embodiment of the present invention;

FIG. 7 is a schematic diagram of a seventh embodiment of a method for accessing a station in an embodiment of the present invention;

FIG. 8 is a schematic diagram of an eighth embodiment of a method for accessing a station in an embodiment of the present invention;

FIG. 9 is a schematic diagram of a ninth embodiment of a method for accessing a station in an embodiment of the present invention;

FIG. 10 is a schematic diagram of an embodiment of a terminal in an embodiment of the present invention;

Fig. 11 is a schematic diagram of an embodiment of a station in an embodiment of the present invention;

Fig. 12 is a schematic diagram of another embodiment of the station in the embodiment of the present invention;

Fig. 13 is a schematic diagram of a system embodiment of an access station in an embodiment of the present invention.

Detailed ways

Embodiments of the present invention provide a method, device and system for accessing a site, which are used to speed up the access speed of a UE to a site and reduce the access delay.

The method for accessing a site in the embodiment of the present invention is aimed at the scenario where the control plane and the user plane of the terminal (UE) are separated. In this scenario, the user plane and the control plane can be switched to different base stations separately. E.g:

In scenario 1, the control plane of the UE remains at the second site, and the transmission of the user plane of the UE is switched from the third site to the first site.

Wherein, the second site takes a macro base station eNB as an example, the third site takes Pico2 as an example, and the first site takes Pico1 as an example.

In this scenario, since the coverage of the small base station is relatively small, TA changes are not considered here. Therefore, the terminal does not need to perform a complete access procedure.

In scenario 2, the control plane and the user plane of the UE are in the first site and the second site respectively, and the user plane of the terminal is switched to the first site.

Wherein, the first site takes Macro eNB1 as an example, and the second site takes Pico1 as an example.

In addition, since the target site of the user plane switching is the base station serving the terminal, the terminal does not need to perform a complete access procedure.

In scenario 3, the user plane and the control plane of the UE are in the second site, and the user plane of the terminal is switched to the first site.

Wherein, the second site takes Macro eNB1 as an example, and the first site takes Pico1 as an example.

In scenario 4, the user plane and the control plane of the UE are in the first site and the second site respectively, and the control plane of the UE needs to be handed over to the first site.

Wherein, the first site uses Pico as an example, the second site uses a macro network eNB, ie, Macro eNB, as an example, and the first site uses Pico as an example.

The above is only to illustrate the technical solution implemented in the present invention by way of example for the convenience of description, and does not constitute a limitation to the technical solution recorded in the present invention.

Please refer to FIG. 1, an embodiment of the method for accessing a site in the embodiment of the present invention includes:

101. Receive a first message sent by a second station, where the first message includes first configuration information;

The UE receives the first message sent by the second station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request (English: Scheduling Request, abbreviated: SR), or a sounding reference signal ( English: Sounding Reference Signal, abbreviation: SRS) configuration information, or configuration information for sending data.

The configuration information for sending data in this embodiment refers to configuration information of data sent when the UE is going to communicate with the second station.

The first site is a target base station accessed by the UE, and the second site is a base station currently accessed by the UE.

102. According to the first configuration information, send the first access information to the first station to access the first station for communication.

The first access information is the SR or the SRS or ACK or NACK or data. Wherein, the data is various communication data sent by the terminal to the first station to access the first station for communication.

In this embodiment, the UE sends the first access information to the first station to access the first station for communication, that is, the UE can send the SR or SRS or ACK or NACK or data to the first station to access the first station for communication. For acknowledgment (acknowledgement) and non-acknowledgment (Non-acknowledgement), specifically, in the prior art HARQ (Hybrid Automatic Repeat Request) or ARQ (Automatic Repeat Request) mechanism, the sender sends If the data packet is received correctly, the receiver will feed back ACK, and if it is not received correctly, it will feed back NACK. The sender will retransmit the packet when it receives a NACK. However, in the present invention, ACK or NACK is not a feedback for HARQ or ARQ transmission, but an indication signal or can be considered as a special SR, or can be considered as the first SR between the terminal and the first station to which it belongs. Here, ACK/ACK is used as an indication signal to indicate that the terminal directly accesses the first site or indicates that the terminal can directly access the first site by sending ACK/NACK without performing a conventional random access procedure. Site, started communicating with the first site.

In the embodiment of the present invention, the UE receives the first message sent by the second station, which includes the first configuration information, and sends the first access information to the first station according to the first configuration information to access the communicate with the first station, so that the UE can access the first station for communication according to the SR or SRS or ACK or NACK or data, without performing random access first, that is, it needs to request resources from the target base station first, so , speeding up the access speed between the UE and the target base station, reducing the signaling interaction process between the UE and the target base station, thereby reducing the time delay for accessing the target base station.

Please refer to FIG. 2, an embodiment of the method for accessing a station in the embodiment of the present invention includes:

201. Receive a first message sent by a second station, where the first message includes first configuration information;

The UE receives the first message sent by the second station, where the first message includes the first configuration information, and the first configuration information includes SR configuration information, or SRS configuration information, or configuration information for sending data. The configuration information for sending data in this embodiment refers to configuration information of data sent when the UE is going to communicate with the second station.

In this embodiment, the sending the first access information to the first station to access the first station for communication specifically includes: the UE does not initiate random access to the first station, but directly sends to the first station A station sends the first access information to access the first station, that is, the UE directly sends the first access information to the first station to access the first station, that is, the UE sends the first access information to the first station The first station sends the first access information instead of performing random access to access the first station.

Specifically, taking the first access information being NACK as an example, if the first station receives NACK on the sending SR resource, and before receiving the NACK, the station has not assigned feedback ACK/NACK to the terminal resources, or the station and the terminal do not have Hybrid Automatic Repeat Request (English: Hybrid Automatic Repeat Request, abbreviation: HARQ) or automatic repeat request (English: Automatic Repeat-reQuest, abbreviation: ARQ) transmission, or the station does not communicate with the terminal There has been communication, then when it thinks that this NACK is an indication signal or a special SR, it is used to indicate that the terminal directly accesses the first site, and it is used to indicate that the terminal does not need to perform a conventional random access procedure but passes By sending the NACK, the first station can be directly accessed, and communication with the first station can be started.

The specific manner in which the UE sends a signal on the resource for sending the SR, such as sending SR or ACK or NACK, is not specifically limited in this embodiment of the present invention. It can be understood that the embodiment of the present invention is only a specific implementation example, but the content of the technical solution of the present invention is not limited to the specific example.

Take the first access information as an SR as an example: the UE sends an SR to the first station, and the SR is represented by a modulated symbol d(0)=1 (this modulation method is also called PUCCHformat1) . The UE sends the SR by using a simple amplitude shift keying (English: Amplitude Shift Keying, abbreviation: ASK) modulation method for modulation. The UE sends an SR, denoted as a modulation symbol d(0)=1. Of course, if the UE does not want to send an SR (for example, the UE does not want to request bandwidth, does not want to be scheduled by the base station, or does not want to directly access the first station in the content of the present invention), then the UE does not send any Signal. (The SR uses simple On–Off keying (the simplest form of amplitude-shift keying (ASK) modulation), with the UE transmitting a SR with modulation symbol d (0) = 1 to request a PUSCH resource (positive SR transmission), and transmitting nothing when it does not request tobescheduled(negative SR). Then the first station receives the signal on the resource where the UE sends the SR, or receives the signal d(0)=1, then when it thinks that it receives an indication signal Or a special SR, which is used to indicate that the terminal directly accesses the first site, and is used to indicate that the terminal does not need to perform a conventional random access procedure but can directly access the first site by sending this signal, so that Start communicating with the first site.

Take the first access information NACK as an example: UE sends ACK or NACK is modulated by Binary Phase Shift Keying (English: Binary Phase Shift Keying, abbreviation: BPSK) (this modulation method can also be called PUCCH format1a), the modulated symbol is ACK=d(0)=1, NACK=d(0)=-1. d(0) is a complex-value symbol.

If the first station receives NACK=d(0)=-1 on the sending SR resource, it knows that it has received NACK, and before receiving the NACK, the station has not assigned feedback ACK/NACK to the terminal resources, or there is no HARQ or ARQ transmission between the station and the terminal, or the station has not communicated with the terminal, then when it thinks that this NACK is an indication signal or a special SR, it is used to indicate that the terminal is directly connected to the The first station is used to indicate that the terminal does not need to perform a conventional random access procedure, but can directly access the first station by sending the NACK, and starts to communicate with the first station. Similarly, ACK can also be implemented in this way.

Of course, when sending SR resources, the UE adopts quadrature phase shift keying (English: Quadrature PhaseShiftKeying, abbreviation: QPSK) modulation (this modulation method can also be called PUCCH format 1b), where the modulation symbol (modulation symbol) d (0 ) is equal to 1, -j, j or -1. Select one of the values as the first access information, and send it on the resource that sends the SR, then the first access information can be considered as a special SR, also known as an SR for the communication between the terminal and the first station. SR, used to indicate that the terminal directly accesses the first site, used to indicate that the terminal does not need to perform a conventional random access procedure but can directly access the first site by sending the NACK, and starts communicating with the first site .

In short, the terminal sends a signal on the resource that sends the SR. The signal can be SR, or ACK or NACK, or other signals or symbols. We also call it SR here, which is a special SR. , is the first SR that the terminal communicates with the first station. It is used to indicate that the terminal directly accesses the first site, and is used to indicate that the terminal does not need to perform a conventional random access procedure but can directly access the first site by sending the NACK, and starts to communicate with the first site.

Wherein, the first message may further include second configuration information, where the second configuration information is a timing advance (English: timing advance, TA for short) value between the UE and the first station, and TA=0 in this embodiment.

The first message may also include first indication information.

The second configuration information or the first indication information is used to instruct the terminal not to initiate random access to the first station, or to instruct the terminal not to initiate random access to the first station, and to directly send the First access information to access the first site; or, used to instruct the terminal to directly send the first access information to access the first site; or, used to instruct the terminal to send the first access information Information is accessed to said first station instead of performing random access.

The first configuration information, the second configuration information, and the first indication information in this embodiment are all sent by the first station to the second station.

Sending the first access information to the first station to access the first station for communication may specifically be:

The UE sends ACK/NACK to the first station on the resource block for sending the SR according to the configuration information of the SR, so as to access the first station for communication;

or,

The UE sends an ACK/NACK to the first station on the resource block sending the SR according to the configuration information of the SR, so that the first station acquires the SR according to the ACK/NACK.

Wherein, the UE sends ACK/NACK to the first station on the resource block for sending the SR, which is the first communication between the UE and the first station.

In this embodiment, after receiving the first message, the UE may directly communicate with the first station according to the first message.

Specifically, the UE obtains the configuration information of sending data contained in the first message, and the configuration information of sending data is the scheduling resource information allocated by the first station, and receives or sends data to the The first station, the UE directly communicates with the first station according to the first message.

Wherein, the first message further includes indication information.

The indication information may be used to indicate: user plane handover of the UE, or data radio bearer (English: dataradio bearer, abbreviation: DRB) handover, or user plane bearer handover, or user plane handover from the second station to the first site, or the transmission of user plane data is switched from the second site to the first site, or the transmission of user data is switched from the third site to the first site, or, Establish a user plane on the first site, or establish a bearer/DRB/user plane bearer on the first site, or add a cell for user data transmission, where the cell is the first The cell of the site.

The indication information may also be used to indicate: UE control plane handover; or signaling radio bearer (English: signaling radio bearer, abbreviation: SRB) handover; or control plane handover from the second site to the second site a site; or, the transmission of control plane data is switched from the second site to the first site; or, the transmission of control signaling is switched from the second site to the first site; or, the control signaling and the transmission of part of the user data is switched from the second site to the first site.

In the process of instructing the UE's user plane and/or handover plane to perform handover, 1-bit indication information can be used to identify whether the user plane or the control plane needs to be handed over. For example, if the value of the indication information is 1, it means that the UE's For user plane switching, the value of the indication information is 0, which means the control plane switching of the UE. It can be understood that other bit values can also be used to correspond to the switching between the user plane and the control plane.

Further, the first message also includes at least one of the following:

Identification information of the first station, cell identification information of the first station, carrier information of the first station, carrier information of a cell of the first station, and scheduling resource information allocated by the first station.

The scheduling resource information in cell 1 of the first station is obtained through the message, so that data can be received or sent to the first station on the scheduling resource. Thus, the terminal starts to listen to the data transmission from the cell under the first site to itself, and receives the data sent by the first site or starts to send data to the first site.

Specifically, 1-bit indication information may also be used to identify the handover information:

For example, when the user plane of the UE is handed over, the first station sends the first message to the target user plane station. The first message includes: 1-bit indication information (the value of the indication information is 1), and the UE control The station mark/community mark of the surface station;

The control plane handover and the user plane handover of the UE to different sites/cells, the first site sends the first message to the target user plane site, and the first message specifically includes: 1-bit indication information (the value of the indication information is 1) , and the site identification/cell identification of the control plane station of the UE after the handover, and may also include the identification of the source user plane site.

For control plane handover of the UE, the first station sends the first message to the target control plane station. The first message specifically includes: 1-bit indication information (the value of the indication information is 0), and the user plane station of the UE after the handover Site marking/community marking;

The control plane handover of the UE and the user plane handover to different sites/cells, the first site sends the first message to the target control plane site, and the first message specifically includes: 1-bit indication information (the value of the indication information is 0) , the site identifier/cell identifier of the user plane station of the UE after the handover may also include the identifier of the source control plane station.

The first message further includes: maintaining configuration information or configuration indication information with the user plane base station during control plane handover, or maintaining configuration information or indication information with the control plane base station during user plane handover.

Wherein, the configuration information of the SR includes at least one of the following:

The time-frequency resource information of the SR, the configuration index of the SR (SR configure index, which may also be called SR-Configindex), and the physical uplink control channel (English: Physical Uplink ControlCHannel, abbreviation: PUCCH) of the SR ) Resource block index (SR PUCCHresource index, which may also be called sr-PUCCH-ResourceIndex).

The terminal can calculate on which subframes the terminal sends the SR through the configuration index of the SR, and the terminal obtains the time to send the SR on a subframe through the physical uplink control channel resource block index (SR PUCCH resource index) of the SR. Resource block information. Then the terminal can obtain which resource block in which subframes to send the SR through the configuration index of the SR and the physical uplink control channel resource block index (SR PUCCH resource index) of the SR.

Specifically, through the SR configuration index (SR configure index) in the message, the terminal can obtain the SR transmission period (SR transmission periodicity SR _PERIODICITY ) and the SR subframe offset (SR subframeoffset N _{OFFSET, SR} ) through the following table, through the above Two parameters, SR transmission time can be calculated as uplink subframes satisfying the following formula (SR transmission instances are the uplinksubframes satisfying): . Among them, nf is the system frame number (system frame number), and ns is the number of a certain symbol in a wireless frame (slotnumber within radio frame).

Thus, the subframe information for sending the SR can be obtained through the above-mentioned SR configuration index (SR configure index). Of course, there are other methods to obtain the subframe information for sending the SR. It is not limited here.

Table 1 UE-specific SR periodicty and subframe offset configuration table (UE-specific SR periodicty and subframe offset configuration)

In this embodiment, the configuration information of the SRS includes:

The configuration information of the SRS may specifically be content in an SRS uplink configuration information element (SoundingRS-UL-ConfigInformation Element), or may also be time-frequency resource information of the SRS. Alternatively, the SRS uplink configuration information element (SoundingRS-UL-ConfigInformation Element) or the time-frequency resource information of the SRS may include at least one of the following, that is to say, the configuration information of the SRS may be at least one of the following: SRS bandwidth (srs-Bandwidth) , SRS bandwidth configuration (srs-BandwidthConfig), frequency hopping bandwidth (srs-HoppingBandwidthSRS), frequency domain position (freqDomainPosition), SRS configuration index (srs-ConfigIndex), cycle change (cyclicShift), subframe configuration (srs-SubframeConfig SRS) , duration (duration), indicating the length of the period for sending SRS (Duration for periodic sounding reference signal transmission) SRS antenna port (SRS-AntennaPort) is used to indicate the number of antenna ports used to send SRS (Indicates the number of antenna ports used for sounding reference signal transmission ). Of course, the above is just an example to illustrate the content of the SRS uplink configuration information element (SoundingRS-UL-Config Information Element), and the content of the SRS uplink configuration information element (SoundingRS-UL-Config Information Element) is not limited to the above-mentioned content.

The present invention uses the time-frequency resource information of the SRS or the RS uplink configuration information element (SoundingRS-UL-ConfigInformation Element) as an example to illustrate the configuration information of the SRS. However, the SRS time-frequency resource information/SRS uplink configuration information element (SoundingRS-UL-ConfigInformation Element) can specifically include at least one of the following: SRS bandwidth (srs-Bandwidth), SRS bandwidth configuration (srs-BandwidthConfig), frequency hopping Bandwidth (srs-HoppingBandwidth SRS), frequency domain position (freqDomainPosition), SRS configuration index (srs-ConfigIndex), cycle change (cyclicShift), subframe configuration (srs-SubframeConfigSRS), duration (duration), SRS antenna port (SRS -AntennaPort), etc. Therefore, the present invention will not be repeatedly described one by one.

Wherein, the configuration information may also be the configuration when the UE adds a secondary cell, and specifically may include at least one of the following:

MAC layer configuration information, packet data convergence protocol PDCP layer configuration information, radio link control protocol RLC layer configuration information, physical layer PHY configuration information, data radio bearer DRB(s) configuration information, logical channel Configuration information, packet data convergence protocol sequence number PDCP SN.

It should be noted that before step 201, that is, before the UE receives the first message sent by the second station, the second station sends a request message to the first station to request the UE to access the first message. a station, the first station sends an access confirmation message to the second station, and the access confirmation message includes configuration information of the first access information, and the second station sends a message according to the first station The message confirming the access, sending the first message to the UE, the UE receiving the first message, the first message including the first access information sent by the first station configuration information.

202. The UE communicates with the first station;

The communication between the UE and the first station may be that the UE activates communication with the first station, or that the UE directly communicates with the first station.

The specific communication method can be one of the following methods;

(1) The UE directly communicates with the first station according to the first message sent by the second station, or sends the first access information to the first station, and the first access information uses to request or activate communication with the first station.

In the whole content of the present invention, said first access information is used for requesting or activating communication with said first station, which is equivalent to said first access information being used for accessing communication with said first station.

Since the UE can obtain downlink synchronization with the first station during the measurement phase, and considering that when the first station is a small cell, the coverage of the first station is relatively small, regardless of TA changes, the first station can synchronize uplink with the UE . Therefore, the UE may directly start communicating with the first station, or the UE may send information to the first station to start communicating with the first station, or activate the UE terminal to start communicating with the first station.

Specifically, after receiving the first message sent by the second station, the UE completes configuration according to the content contained in the first message, and starts to communicate with the first station.

(2) The UE receives the activation message sent by the first station, and according to the received activation message, directly communicates with the first station or sends first access information to the first station, and the first Access information is used to request or activate communication with said first station.

Specifically, the activation message may be that the first station sends a MAC layer message, such as a MAC CE, to instruct the terminal to communicate with the first station, and then the UE starts to communicate with the first station. The activation message may be in the form of RRC message, physical layer signaling, etc., which is not limited here.

(3) The UE receives the activation message sent by the first station forwarded by the second station, and directly communicates with the first station or sends first access information to the first station according to the received activation message , the first access information is used to request or activate communication with the first station.

Specifically, the activation message may be that the first station sends a MAC layer message, such as a MAC CE, to instruct the terminal to communicate with the first station, and then the UE starts to communicate with the first station.

(4) The UE receives the activation message sent by the second station, and according to the received activation message, directly communicates with the first station or sends first access information to the first station, and the first access information for requesting or activating communication with said first station;

(5) The UE sends an RRC connection reconfiguration complete message/handover complete message to the first station according to the received bandwidth information or time-frequency resource information contained in the first message sent by the second station to access the first station. Describe the first site. That is, the first message may include time-frequency resource information of the RRC connection reconfiguration complete message/handover complete message sent by the first station, and the UE sends the RRC connection reconfiguration complete message/handover complete message on the time-frequency resource Handover complete message to access the first station.

It should be noted that, before step 202, that is, before the UE activates communication with the first station, a confirmation message may be sent to the second station, and the confirmation message may be used to notify the second station that the UE has passed the The first message is used to complete the configuration or activate the terminal to communicate with the first station.

203. According to the first configuration information, send the first access information to the first station to access the first station for communication;

The first access information is the SR or the SRS or ACK or NACK or data. Wherein, the data is various communication data sent by the terminal to the first station to access the first station for communication. The SRS is a UE-specific SRS.

If the first access information is SR, the specific access process is that the UE obtains the subframe information for sending the SR according to the SR configuration index (English: SR-ConfigIndex) of the configuration information of the first access information, and passes the SR The configuration index can calculate on which subframes the UE sends the SR.

The configuration information of the first access information may also include the physical uplink control channel resource block index (SRPUCCH resource index) of the SR, and the physical uplink control channel resource block index (SR PUCCHresource index) of the SR is used to provide the terminal The PUCCH resource block information for sending the SR is the resource block of the PUCCH on which the UE can send the SR.

According to the SR configuration index (SR configure index) and the SR physical uplink control channel resource block index (SR PUCCH resource index), the terminal can obtain which PUCCH resource blocks on which subframes to send the SR.

Further, the way of sending the SR can also be optimized as the way of sending the ACK/NACK: sending an ACK/NACK (English: Acknowledgment/Negative-Acknowledgment) message on the PUCCH resource block where the SR is sent, so that the first station obtains The SR, the SR is used to activate communication with the first station, and the SR is the first SR sent to the first station.

The UE sends ACK/NACK on the resource block that sends SR, so that the base station receives ACK/NACK on the resource block that sends SR, then the base station knows that the terminal is to activate communication with the base station. Because the terminal has not communicated with the base station before, there will be no HARQ/ARQ related communication, so the terminal should not feed back ACK/NACK to the base station according to the prior art, but should send SR according to the prior art. Therefore, the base station receives ACK/NACK on the resource block that sends the SR, and regards this method as a special method, which is the first time that the terminal communicates with the base station and requests the access station to communicate with the base station.

The UE receives ACK/NACK on the PUCCH resource block that sends the SR. For example, we can default that the UE always sends ACK, and the first station considers that the SR has been obtained to activate communication with the terminal. The SR is the first SR sent by the terminal. Or the first station regards it as the received ACK, and uses it to activate communication with the terminal. Of course, we can also default that the UE sends a NACK on the PUCCH resource block that sends the SR, which means it is used to activate the communication between the terminal and the first station. In short, because the terminal has not communicated with the base station before, there will be no HARQ/ARQ related communication at all, so according to the existing technology, the terminal will not feed back ACK/NACK to the base station, so the base station sends the SR on the PUCCH resource block After receiving ACK/NACK, it is known that the terminal wishes to access the base station for communication.

The configuration information of the first access information may also include the maximum number of SRs sent by the terminal: SRdsr-TransMax.

If the first access information is the SRS, the first station receives the SRS sent by the UE, and considers that the reconfiguration of the UE is successful. At the same time, by receiving the SRS, the first station synchronizes uplink with the terminal, and obtains information such as uplink channel estimation. The first station starts to transmit data with the UE.

204. If the first access information sent to the first station is SR, receive the bandwidth information allocated by the first station according to the SR, and send RRC connection reconfiguration complete according to the allocated bandwidth A message (RRCconnection reconfiguration message)/handover completion message (handover command message) is sent to the first station.

In the embodiment of the present invention, the UE receives the first message sent by the second station, which includes the first configuration information, and sends the first access information to the first station according to the first configuration information to access the communicate with the first station, so that the UE can access the first station for communication according to the SR or SRS or ACK or NACK or data, without performing random access first, that is, it needs to request resources from the target base station first, so , speeding up the access speed between the UE and the target base station, reducing the signaling interaction process between the UE and the target base station, thereby reducing the time delay for accessing the target base station.

The communication process between the UE and the first station and the second station is described below in a specific application scenario. See Figure 3.

301. The second station sends a UE access request to the first station;

The access request is used to request the first station to allow the UE to access.

302. The first station replies to the UE access request of the second station;

The first station confirms that the UE is allowed to access the first station.

303. The first station sends a first message to the UE;

Include first configuration information in the first message.

304. The UE sends a confirmation message to the second station;

The confirmation message may be used to notify the second station that the configuration of the UE has been completed according to the first message.

305. Communication between the UE and the first station;

The specific communication method may be: according to the first message sent by the second station, the UE directly communicates with the first station or sends the first access information to the first station, and the first access Information is used to request or activate communication with said first station.

It may also be that the UE receives the activation message sent by the first station, and directly communicates with the first station or sends first access information to the first station according to the received activation message, and the second station An access message is used to request or activate communication with said first station.

It may also be that the UE receives the activation message sent by the first station forwarded by the second station, and directly communicates with the first station or sends a first access message to the first station according to the received activation message. information, the first access information is used to request or activate communication with the first station.

Alternatively, the UE receives the activation message sent by the second station, and according to the received activation message, directly communicates with the first station or sends first access information to the first station, and the first station The incoming information is used to request or activate communication with the first station.

It may also be that, according to the received bandwidth information or time-frequency resource information contained in the first message sent by the second station, the UE sends an RRC connection reconfiguration complete message/handover complete message to the first station to access the first site.

306. The UE receives information about the bandwidth allocated by the first station according to the SR;

If the first access information sent to the first station is SR, the UE receives information about bandwidth allocated by the first station according to the SR.

307. Send an RRC connection reconfiguration complete message/handover complete message.

The UE sends an RRC connection reconfiguration complete message/handover complete message to the first station according to the allocated bandwidth.

The method for accessing the station in the embodiment of the present invention is described above from the perspective of the UE side, and the method for accessing the station in the embodiment of the present invention is described below from the perspective of the first station side, please refer to FIG. 4 .

401. The first site generates a first message for the second site.

402. Send the first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or sends Data configuration information, the first configuration information is used for the terminal to send first access information to the first site to access the first site, the first access information is the SR or the The above SRS or ACK or NACK or data.

In the embodiment of the present invention, a first message is generated for the second station, and the first message is sent to the second station, the first message includes first configuration information, wherein the first configuration information includes a scheduling request SR Configuration information of sounding reference signal SRS or configuration information of sending data, where the first configuration information is used by the terminal to send first access information to the first station to access the first station, There is no need to perform random access first, that is, it is necessary to request resources from the target base station first. Therefore, the access speed between the UE and the target base station is accelerated, and the signaling interaction process between the UE and the target base station is reduced, thereby reducing the time required for accessing the target base station. delay.

Please refer to FIG. 5, another embodiment of the method for accessing a station in the embodiment of the present invention includes:

501. Receive a second message sent by a second station, where the second message is used to switch the terminal or add at least one cell for the terminal;

Wherein, the cell added for the terminal may be a cell used for data transmission with the UE.

Switching the terminal includes: switching the user plane of the terminal, or switching the control plane, or switching the control plane and the user plane to different sites;

Wherein, the user plane switching includes:

The user plane handover of the terminal, the DRB handover of the terminal, or the user plane bearer handover of the terminal, or the user plane handover of the terminal from the second site to the local site of the first site, or, The transmission of the user plane data of the terminal is switched locally from the second site to the first site, or the transmission of the user data of the terminal is switched from the third site to the first site, or, at the Establishing the user plane of the terminal on the first site, or establishing the bearer/DRB/user plane bearer of the terminal on the first site, or adding to the terminal the terminal user data transmission A cell, where the cell is a cell of the first site.

Wherein, the control plane switching includes:

The control plane handover of the terminal, or the SRB handover of the terminal, or the handover of the control plane of the terminal from the second site to the first site, or the transmission of control plane data of the terminal Switching from the second site to the first site, or switching the transmission of the control signaling of the terminal from the second site to the first site, or switching the transmission of the control signaling of the terminal and the transmission of part of the user data is switched from the second site to the first site.

The configuration information of the first access information includes at least one of the following:

The time-frequency resource information of the SR, the configuration index of the SR, the physical uplink control channel resource block index of the SR, the time-frequency resource information of the SRS, or the SRS uplink configuration information element (SoundingRS- UL-Config Information Element).

502. Send a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or information about sending data Configuration information, the first configuration information is used by the terminal to send first access information to the first site to access the first site, the first access information is the SR or the SRS Or ACK or NACK or data;

A first message is generated for a second station and sent to the second station.

In this embodiment, the first configuration information is used for the UE not to initiate random access to the first station, but to directly send the first access information to the first station to access the the first station; or, the UE directly sends the first access information to the first station to access the first station; or, the UE sends the first access information to the first station performing random access instead of the UE, so as to access the first site, thereby saving the access delay of the UE.

Wherein, the first message may further include second configuration information, where the second configuration information is a timing advance (English: timing advance, TA for short) value between the UE and the first station, and TA=0 in this embodiment.

The first message may also include first indication information.

The second configuration information or the first indication information is used to instruct the terminal not to initiate random access to the first station, or to instruct the terminal not to initiate random access to the first station, and to directly send the First access information to access the first site; or, used to instruct the terminal to directly send the first access information to access the first site; or, used to instruct the terminal to send the first access information Information is accessed to said first station instead of performing random access.

The first configuration information, the second configuration information, and the first indication information in this embodiment are all sent by the first station to the second station.

Wherein, the first message further includes: the time-frequency resource information of the RRC connection reconfiguration complete message/handover complete message sent by the terminal, and the RRC connection reconfiguration sent by the terminal is received on the time-frequency resource Complete message/handover complete message to start communicating with said terminal.

After sending the second message to the second station, the first station establishes a data transmission channel with the second station, and may also perform data transmission after establishing the data transmission channel.

503. Receive a third message sent by the second station, where the third message is used to notify the terminal to complete the configuration and/or to notify the start of communication with the terminal;

504. After receiving the third message sent by the first station, activate communication with the UE.

The specific activation method can be one of the following methods:

(1) Receive data sent by the terminal, and start communicating with the terminal; or, receive first access information sent by the terminal, where the first access information is used to request or activate communication with the terminal.

(2) sending an activation message to the second station, so that the second station sends a second activation message to the terminal for requesting or activating communication with the terminal;

Receive the data from the terminal and start communicating with the terminal, or receive first access information sent by the terminal, where the first access information is used to request or activate communication with the terminal.

(3) receiving an activation message sent by the second station, where the activation message is used to request or activate communication with the terminal.

(4) Receive data from the terminal and start communicating with the terminal, or receive first access information sent by the terminal, and the first access information is used to request or activate communication with the terminal.

(5) Sending an activation message to the terminal to request or activate communication with the terminal.

Wherein, if the first station receives the first access information sent by the terminal, if the first access information is SR, then receive the allotted information on the bandwidth allocated for the terminal in the configuration information of the first access information. The terminal sends an RRC reconfiguration complete message/handover complete message.

Before receiving the ACK/NACK sent by the terminal on the resource block of the SR, no resource for feeding back ACK/NACK is allocated to the terminal; or, receiving the resource of the terminal in the SR Before the ACK/NACK sent on the SR block, there is no ARQ/HARQ communication with the terminal; or, the sending ACK/NACK to the first station on the resource block sending the SR is related to the first The site communicates for the first time.

After receiving ACK/NACK on the PUCCH resource block that sent the SR (for example, we can default that the UE sends ACK), the first station considers that the SR has been obtained, so as to activate communication with the terminal, The SR is the first SR sent by the terminal. Or the first station regards it as the received ACK/NACK, so as to activate communication with the terminal. Of course, we can also default that the UE sends a NACK on the PUCCH resource block that sends the SR, which means it is used to activate the communication between the terminal and the first station. In short, because the terminal has not communicated with the base station before, there will be no HARQ/ARQ related communication at all, so according to the existing technology, the terminal will not feed back ACK/NACK to the base station, so the base station sends the SR on the PUCCH resource block After receiving ACK/NACK, it is known that the terminal wishes to access the base station for communication.

It should be noted that, after the first station receives the UE configuration completion notification message sent by the second station, or after activating communication with the UE, it sends a first indication message to the third station, and the first indication message It is used to instruct the third station to stop communicating with the UE.

Further, the first station sends a second indication message to the third station, where the second indication message is used to instruct the third station to release the resources reserved for the terminal, or the terminal configuration information, or the Terminal context information.

Still further, the first station sends a third indication message to the third station, where the third indication message is used to instruct the third station to continue communicating with the terminal.

For the same content in the embodiment of the present invention as the embodiment shown in FIG. 1 and FIG. 2 , please refer to the description in the related embodiments, and details are not repeated here.

In the embodiment of the present invention, the first station receives the second message sent by the second station, the second message is used to switch the terminal or add at least one cell for data transmission to the terminal, and the first station sends the second message send a message to the second station, the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration information of sent data, the The first configuration information is used for the terminal to send the first access information to the first station to access the first station. It is not necessary to perform random access first, that is, it needs to first request resources from the target base station, so the The access speed between the UE and the target base station is improved, and the signaling interaction process between the UE and the target base station is reduced, thereby reducing the time delay for accessing the target base station.

The following describes a communication process between the first station, the second station, and the UE in a specific application scenario. See Figure 6.

601. The first station receives the second message sent by the second station;

The second message is used to request to switch the user plane of the UE, or to switch the control plane, or to switch the control plane and the user plane to different sites, or to add at least one cell for data transmission to the terminal.

602. The first site sends the first message to the second site;

The first message is used to reply to the second message, and the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration of sending data information, the first configuration information is used by the terminal to send first access information to the first site to access the first site, and the first access information is the SR or the SRS or ACK or NACK or data.

603. The first site establishes a data transmission channel with the second site;

Data transmission may also be performed after the data transmission channel is established.

604. The first station receives the third message sent by the second station;

The third message is used to notify the terminal that the configuration is completed and/or to notify the start of communication with the terminal.

605. The first station activates communication with the UE;

The specific activation method may be to receive data sent by the UE and start communicating with the terminal, or to receive first access information sent by the UE, and the first access information is used to request or activate communication with the UE;

It is also possible to send an activation message to the second station, so that the second station sends a second activation message to the terminal for requesting or activating communication with the terminal; receiving the data of the terminal, start Communicating with the terminal, or receiving first access information sent by the terminal, where the first access information is used to request or activate communication with the terminal.

It may also be receiving an activation message sent by the second station, where the activation message is used to request or activate communication with the terminal;

It is also possible to receive the data of the terminal and start communicating with the terminal, or receive the first access information sent by the terminal, and the first access information is used to request or activate communication with the terminal

Alternatively, an activation message may be sent to the terminal to request or activate communication with the terminal.

606. The first station sends a first indication message to the third station;

The first indication message is used to instruct the third station to stop communicating with the UE.

607. The first station sends a second indication message to the third station;

The second indication message is used to instruct the third station to release the resources reserved for the terminal, or the terminal configuration information, or the terminal context information.

608. The first station sends a third indication message to the third station;

The third indication message is used to instruct the third station to continue communicating with the terminal.

All embodiments of the present invention do not limit the types of all stations such as the first station base station and the second station. For example, the first station and the second station may be specifically base stations, and may be one of the following: Macro eNB (macro base station ), Micro eNB (pico base station), Pico eNB (micro base station), HeNB (home base station), Small Cell eNB (small cell base station) and relay station (relay station)) or a node with a scheduling function. The first station or the second station may also be called a wireless communication node or a wireless communication station.

The method for accessing the site in the embodiment of the present invention is described above from the perspective of the first site side, and the method for accessing the site in the embodiment of the present invention is described below from the perspective of the second site side, please refer to FIG. 7 .

701. Receive a first message sent by a first station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of sent data;

The second station receives the first message sent by the first station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of sending data. Wherein, the configuration information of the sending data refers to the configuration information of the data sent when the UE will communicate with the second station.

702. Send a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used for the terminal to send first access information to the first station to access The first station communicates, and the first access information is the SR or the SRS or ACK or NACK or data.

The second station sends a second message to the terminal, the second message includes the first configuration information, and the first configuration information is used for the terminal to send the first access information to the first station to receive communicate with the first station, and the first access information is the SR or the SRS or ACK or NACK or data.

In this embodiment of the present invention, the second station sends a second message to the terminal, the second message includes the first configuration information, and the first configuration information is used by the terminal to send the first station to the first station. Access information to communicate with the first station, the first access information is the SR or the SRS or ACK or NACK or data, so that the UE can access the first station according to the first configuration information The first station communicates without performing random access first, that is, it needs to request resources from the target base station first, so the access speed between the UE and the target base station is accelerated, and the signaling interaction process between the UE and the target base station is reduced, thereby Reduce the delay of accessing the target base station.

Please refer to FIG. 8, another embodiment of the method for accessing a station in the embodiment of the present invention includes:

801. The second station sends a third message to the first station, where the third message is used to request switching the user plane of the terminal, or switching the control plane, or switching the control plane and the user plane to different stations respectively;

Among them, user plane switching includes:

The user plane handover of the terminal, or the DRB handover of the terminal, or the user plane bearer handover of the terminal, or the user plane handover of the terminal from the second site locally to the second site The first site, or the transmission of the user plane data of the terminal is locally switched from the second site to the first site, or the transmission of the user data of the terminal is switched from the third site to the The first site, or establish the user plane of the terminal on the first site, or establish the bearer/DRB/user plane bearer of the terminal on the first site, or add A cell used for the terminal user data transmission, wherein the cell is a cell of the first site.

Wherein, the control plane switching includes:

The control plane handover of the terminal, or the SRB handover of the terminal, or the handover of the control plane of the terminal from the second site to the first site, or the transmission of control plane data of the terminal Switching from the second site to the first site, or switching the transmission of the control signaling of the terminal from the second site to the first site, or switching the transmission of the control signaling of the terminal and the transmission of part of the user data is switched from the second site to the first site.

Wherein, the configuration information of the first access information includes at least one of the following:

The time-frequency resource information of the SR, the configuration index of the SR (SR CONFIGUREINDEX), the physical uplink control channel resource block index of the SR (SR PUCCH resourceindex), the time-frequency resource information of the SRS, the SRS uplink configuration information element.

Further, the configuration information of the first access information may also include at least one of the following:

MAC layer configuration information, packet data convergence protocol PDCP layer configuration information, radio link control protocol RLC layer configuration information, physical layer PHY configuration information, data radio bearer DRB(s) configuration information, logic Channel configuration information, packet data convergence protocol sequence number PDCP SN.

802. Receive a first message sent by the first station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of sent data;

The second station receives the first message sent by the first station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of sending data. Wherein, the configuration information of the sending data refers to the configuration information of the data sent when the UE will communicate with the second station.

The first configuration information is used by the terminal to send first access information to the first station to access the first station for communication, so that the terminal does not initiate random access to the first station, Instead, directly send the first access information to the first station to access the first station; or,

sending the first access information directly to the first station to access the first station; or,

Sending the first access information to the first station instead of performing random access to access the first station.

Wherein, the first message may further include second configuration information, where the second configuration information is a timing advance (English: timing advance, TA for short) value between the UE and the first station, and TA=0 in this embodiment.

The first message may also include first indication information.

The second configuration information or the first indication information is used to instruct the terminal not to initiate random access to the first station, or to instruct the terminal not to initiate random access to the first station, and to directly send the First access information to access the first site; or, used to instruct the terminal to directly send the first access information to access the first site; or, used to instruct the terminal to send the first access information Information is accessed to said first station instead of performing random access.

The first configuration information, the second configuration information, and the first indication information in this embodiment are all sent by the first station to the second station.

Further, the first message also includes at least one of the following:

The base station identifier of the source user plane base station of the terminal, the cell identifier of the source user plane base station of the terminal, the identifier of the source control plane base station of the terminal, the cell identifier of the source control plane base station of the terminal, the terminal The indication of the target base station for handover and the indication of the target cell for handover by the terminal.

Further, the first message may also include:

The terminal maintains the configuration indication information with the user plane base station during the control plane handover, or the terminal maintains the configuration indication information with the control plane base station during the user plane handover.

It should be noted that after receiving the first message sent by the first station, it is known that the first station agrees to the UE access, and then sends a first indication message to the third station, and the first indication message uses In order to instruct the third station to stop communicating with the terminal, the user plane and/or control plane of the UE is at the third station.

After the second station receives the first message sent by the first station, it can also establish a data transmission channel with the first station, or establish a data transmission channel with the first station, and send the data of the terminal to the first station. site.

803. Send a second message to the terminal, where the second message includes configuration information of the first access information, and the configuration information of the first access information is used by the terminal to send to the first station first access information to access the first site;

804. Receive a fourth message from the terminal, where the fourth message is used to notify the terminal to complete the configuration;

The second station receives the fourth message from the terminal, where the fourth message is used to notify the terminal that the configuration is completed.

805. Send a fifth message to the first station, where the fifth message is used to notify the first station that the terminal is configured, and/or notify the first station to communicate with the terminal;

806. Activate communication between the UE and the first station.

In this embodiment, the second station may activate the communication between the UE and the first station, and the specific activation method may be one of the following methods:

(1) receiving an activation message sent by the first station, where the activation message sent by the first station is used to instruct the terminal to directly communicate with the first station or instruct the terminal to send a first access information, the first access information is used to request or activate communication with the first station;

(2) sending an activation message to the terminal, used to instruct the terminal to directly communicate with the first site or to instruct the terminal to send first access information to the first site, where the first access information is used for requesting or activating communication with said first station;

(3) sending an activation message to the terminal and the first site, notifying the terminal to communicate with the first site;

(4) Sending the time-frequency resource information of the terminal sending the RRC connection reconfiguration complete message/handover complete message to the first station contained in the received first message to the terminal.

In this embodiment of the present invention, after activating the communication between the UE and the first station, a second indication message is sent to the third station, and the second indication message is used to instruct the third station to release the resources reserved by the terminal, or configuration information of the terminal, or context information of the terminal.

Further, sending a third indication message to the third station, where the third indication message is used to instruct the third station to continue communicating with the terminal.

For the same content in the embodiment of the present invention as the embodiment shown in FIG. 1 , FIG. 2 , FIG. 4 , and FIG. 5 , please refer to the description in the related embodiments, and details will not be repeated here.

In the embodiment of the present invention, the second station receives the configuration information of the first access information sent by the first station, and the configuration information of the first access information is used by the terminal to send the first access information to the first station. Information to access the first station, so that the UE can access the first station to communicate according to the SR or SRS, without first performing random access, that is, it needs to first request resources from the target base station, therefore, speeding up The access speed of the UE and the target base station reduces the signaling interaction process between the UE and the target base station, thereby reducing the time delay for accessing the target base station.

The following describes a communication process between the second station, the first station, and the UE in a specific application scenario. See Figure 9.

901. The second site sends a third message to the first site;

The third message is used to request switching of the user plane of the terminal, or switching of the control plane, or switching the control plane and the user plane to different sites respectively.

902. The second station receives the first message sent by the first station;

The first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of sending data.

903. The second station sends a first indication message to the third station;

The first indication message is used to instruct the third station to stop communicating with the terminal, and the user plane and/or control plane of the UE is at the third station.

904. The second site establishes a data transmission channel with the first site;

The second station may further perform data transmission with the second station.

905. The second station sends a second message to the UE;

The second message includes the first configuration information, the first configuration information is used for the terminal to send first access information to the first station to access the first station for communication, and the first An access information is the SR or the SRS or ACK or NACK or data.

906. The second station receives the fourth message sent by the UE;

The fourth message is used to notify the UE that the configuration is completed.

907. The second site sends a fifth message to the first site;

The fifth message is used to notify the first station that the configuration of the UE is completed, and/or notify the first station to communicate with the UE.

908. The second station activates communication between the UE and the first station;

The second station may activate the communication between the UE and the first station, and the specific activation manner may be one of the following manners:

(1) receiving an activation message sent by the first station, where the activation message sent by the first station is used to instruct the UE to directly communicate with the first station or to instruct the UE to send a first access information, the first access information is used to request or activate communication with the first station;

(2) Send an activation message to the UE, instructing the UE to directly communicate with the first station or instructing the UE to send first access information to the first station, and the first access information is used to request or activate communication with said first station;

(3) sending an activation message to the UE and the first station, notifying the UE to communicate with the first station;

(4) Send the time-frequency resource information of the UE sending the RRC connection reconfiguration complete message/handover complete message to the first station contained in the received first message to the UE.

909. The second station sends a second indication message to the third station;

The second indication message is used to instruct the third station to release the resources reserved for the UE, or configuration information of the UE, or context information of the UE.

910. The second station sends a third indication message to the third station.

The third indication message is used to instruct the third station to continue communicating with the UE.

The terminal in the embodiment of the present invention is introduced below, please refer to FIG. 10, an embodiment of the terminal in the embodiment of the present invention includes:

The receiving unit 1001 is configured to receive a first message sent by a second station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or sends Configuration information for data;

The sending unit 1002 is configured to send first access information to the first station to access the first station for communication according to the first configuration information, where the first access information is the SR or the SRS Or ACK or NACK or data.

further,

The sending unit 1002 is configured to directly send the first access information to the first station to access the first station without initiating random access to the first station; or,

sending the first access information directly to the first station to access the first station; or,

Sending the first access information to the first station instead of performing random access to access the first station.

The first message in the embodiment of the present invention further includes:

second configuration information, where the second configuration information is TA=0 between the UE and the first station, or

the first instruction message;

The second configuration information or the first indication information,

used to indicate not to initiate random access to the first station, or,

It is used to indicate not to initiate random access to the first station, and to directly send the first access information to access the first station; or,

used to indicate to directly send the first access information to access the first site; or,

It is used to instruct to send the first access information instead of performing random access, so as to access the first station.

Further, the sending unit 1002 is configured to send ACK/NACK to the first station on the resource block sending the SR according to the configuration information of the SR, so as to access the first station for communication;

Or, according to the configuration information of the SR, send an ACK/NACK to the first station on the resource block sending the SR, so that the first station acquires the SR according to the ACK/NACK.

Further, the terminal in the embodiment of the present invention may also include:

a communication unit 1003, configured to directly communicate with the first station according to the first message;

The obtaining unit 1004 is configured to obtain configuration information of sending data contained in the first message, where the configuration information of sending data is scheduling resource information allocated by the first station, and receiving or sending data on the allocated scheduling resource to the first site.

further,

The communication unit 1002 is further configured to directly communicate with the first station according to the received activation message sent by the first station;

or,

communicating directly with the first station according to the received activation message sent by the first station forwarded by the second station;

or,

Directly communicate with the first station according to the received activation message sent by the second station.

The communication unit 1002 is further configured to send first access information to the first station to access the first station for communication; or,

Sending first access information to the first station to access the first station for communication according to the received activation message sent by the first station;

or,

Sending first access information to the first station to access the first station for communication according to the received activation message sent by the first station forwarded by the second station;

or,

Sending first access information to the first station to access the first station for communication according to the received activation message sent by the second station;

or,

Sending an RRC connection reconfiguration complete message/handover complete message to the first station according to the bandwidth information or time-frequency resource information included in the first message, so as to access the first station for communication.

further,

The receiving unit 1001 is further configured to receive bandwidth information allocated by the first station according to the SR if the first access information sent to the first station is SR;

The sending unit 1002 is further configured to send an RRC reconfiguration complete message/handover complete message to the first station according to the allocated bandwidth.

The configuration information of the SR in this embodiment includes:

The time-frequency resource information (SR resource) of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index for scheduling the SR;

The configuration information of the SRS includes: time-frequency resource information of the SRS.

further,

The obtaining unit 1004 is further configured to obtain subframe information for sending the SR according to the SR configuration index; and is also used for obtaining resource block information for sending the SR according to the resource block index of the SR;

The sending unit 1002 is further configured to send the SR or ACK or NACK to the first station on the resource block of the subframe.

The sending unit 1002 is further configured to send ACK/NACK on the PUCCH resource block that sends the SR, so that the first station obtains the SR to access the first station for communication, and the SR is The first SR sent to the first site.

The sending unit 1002 is further configured to send the RRC connection reconfiguration complete message/handover complete message on the time-frequency resource, so as to access the first station.

The first message in this embodiment of the present invention further includes: indication information, where the indication information is used to indicate user plane handover; or,

DRB switching; or,

user plane bearer switching; or,

A user plane is handed over from the second site to the first site; or,

switching the transmission of user plane data from the second site to the first site; or,

handover of transmission of user data from said third site to said first site; or,

establishing a user plane on the first site; or,

Establishing a bearer/DRB/user plane bearer on the first site; or,

A cell used for user data transmission is added, wherein the cell is a cell of the first site.

or,

The indication information is used to indicate control plane switching; or,

SRB switching; or,

switching the control plane from the second site to the first site; or,

The transmission of the control plane data is switched from the second site to the first site; or,

switching the transmission of control signaling from the second site to the first site; or,

The transmission of control signaling and the transmission of part of user data are switched from the second site to the first site.

In this embodiment, the first message further includes at least one of the following: identification information of the first station, cell identification information of the first station, carrier information of the first station, and The carrier information of the cell, the scheduling resource information allocated by the first station;

The first message further includes: maintaining configuration information or configuration indication information with the user plane base station during control plane handover, or maintaining configuration information or indication information with the control plane base station during user plane handover;

The first message also includes at least one of the following: configuration information of the MAC layer of media access control, configuration information of the PDCP layer of the packet data convergence protocol, configuration information of the RLC layer of the radio link control protocol, configuration information of the physical layer PHY, data Radio bearer DRB(s) configuration information, logical channel configuration information, packet data convergence protocol sequence number PDCP SN.

The specific process of each unit in the terminal in the embodiment of the present invention to realize their respective functions is the same as the process described in the foregoing embodiments shown in FIG. 1 to FIG. 3 , and will not be repeated here.

In the embodiment of the present invention, the UE receives the first message sent by the second station, which includes the first configuration information, and sends the first access information to the first station according to the first configuration information to access the communicate with the first station, so that the UE can access the first station for communication according to the SR or SRS or ACK or NACK or data, without performing random access first, that is, it needs to request resources from the target base station first, so , speeding up the access speed between the UE and the target base station, reducing the signaling interaction process between the UE and the target base station, thereby reducing the time delay for accessing the target base station.

Referring to Figure 11, the embodiment of the present invention also provides a site, including:

a generating unit 1101, configured to generate a first message for a second site;

A message sending unit 1102, configured to send a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration of a sounding reference signal SRS information or configuration information for sending data, the first configuration information is used by the terminal to send first access information to the first site to access the first site, and the first access information is the SR or the SRS or ACK or NACK or data.

Wherein, the first configuration information is used for the terminal not to initiate random access to the first station, but to directly send the first access information to the first station to access the first station ;or,

The terminal directly sends the first access information to the first site to access the first site; or,

The terminal sends the first access information to the first station instead of performing random access, so as to access the first station.

The first message in this embodiment also includes:

second configuration information, where the second configuration information is TA=0 between the terminal and the first station, or first indication information;

The second configuration information or the first indication information is used to instruct the terminal not to initiate random access to the first station, or,

Instructing the terminal not to initiate random access to the first site, but to directly send the first access information to access the first site; or,

used to instruct the terminal to directly send the first access information to access the first site; or,

It is used to instruct the terminal to send the first access information instead of performing random access, so as to access the first site.

It should be noted that the site in the embodiment of the present invention may further include:

The message receiving unit 1103 is configured to receive a second message sent by the second station, where the second message is used to switch the terminal or add at least one cell for the terminal.

The message receiving unit 1103 is further configured to receive a third message sent by the second station, where the third message is used to notify the terminal of completion of configuration and/or to notify the start of communication with the terminal.

further,

The message receiving unit 1103 is also configured to receive the data sent by the terminal and start communicating with the terminal;

or,

It is also used to receive first access information sent by the terminal, where the first access information is used to request or activate communication with the terminal.

The message receiving unit 1103 is further configured to receive an activation message sent by the second station, where the activation message is used to request or activate communication with the terminal;

It is also used to receive the data of the terminal and start communication with the terminal, or receive the first access information sent by the terminal, and the first access information is used for the terminal to access and communicate.

The sending message unit 1102 is further configured to send an activation message to the terminal, so as to request or activate communication with the terminal;

The receiving message unit 1103 is further configured to receive data from the terminal, start communicating with the terminal, or receive first access information sent by the terminal, and the first access information is used for the terminal to access and perform communication.

further,

The message receiving unit 1103 is further configured to receive the first access information sent by the terminal; or, receive the first access information sent by the terminal;

If the first access information is SR, the configuration information of the first access information includes the bandwidth allocated for the terminal, and the allocated bandwidth is used for the terminal to send an RRC reconfiguration complete message/ Handover complete message, and receive the RRC reconfiguration complete message/handover complete message sent by the terminal on the allocated bandwidth.

The message receiving unit 1103 is further configured to receive the ACK/NACK sent by the terminal on the resource block of the SR.

The message receiving unit 1103 is further configured to receive the ACK/NACK sent by the terminal on the resource block of the SR, and obtain the SR according to the ACK/NACK, so that the terminal accesses and communicates.

The message sending unit 1102 is further configured to send ACK/NACK on the PUCCH resource block that sends the SR, so as to obtain the SR, so that the terminal accesses and communicates, and the SR is the The first SR.

The first configuration information in this embodiment includes at least one of the following:

The time-frequency resource information of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index of the SR, the time-frequency resource information of the SRS, and the SRS uplink configuration information element.

The second message in this embodiment also includes:

The terminal sends the time-frequency resource information of the RRC connection reconfiguration complete message/handover complete message.

further,

The message receiving unit 1103 is further configured to receive the RRC connection reconfiguration complete message/handover complete message sent by the terminal on the time-frequency resource, so as to start communicating with the terminal.

The message receiving unit 1103 is further configured to receive a third message sent by the second station, where the third message is used to notify the terminal to complete the configuration and/or notify to start communicating with the terminal.

The first access information in this embodiment is used for the terminal to access and communicate, including: the first access information is used for requesting or activating communication with the terminal.

The site in this embodiment may further include:

An information acquisition unit 1104, configured to acquire the SR according to the ACK/NACK, so as to request or activate communication with the terminal;

An establishing unit 1105, configured to establish a data transmission channel with the second station.

further,

The sending message unit 1102 is further configured to send a first indication message to a third station, where the first indication message is used to instruct the third station to stop communicating with the terminal.

The message receiving unit 1103 is further configured to receive a second indication message sent by the second station, where the second indication message is used to instruct the third station to release the resource reserved for the terminal, or the Terminal configuration information, or the terminal context information.

The message receiving unit 1103 is further configured to receive a third indication message sent by the second station, where the third indication message is used to instruct the third station to continue communicating with the terminal;

The message receiving unit 1103 is further configured to receive the data of the terminal forwarded by the second station.

Switching the terminal described in this embodiment includes:

The user plane of the terminal is switched, or the control plane is switched, or the control plane and the user plane are switched to different sites.

The user plane switching includes:

user plane handover of the terminal,

DRB switching of the terminal; or,

User plane bearer switching of the terminal; or,

The user plane of the terminal is switched from the second site to the local site; or,

The transmission of the user plane data of the terminal is switched from the second site to the local site; or,

The transmission of the user data of the terminal is switched from the third site to the first site; or,

Establishing a user plane of the terminal on the first site; or,

Establishing a bearer/DRB/user plane bearer of the terminal on the first site; or,

Adding a cell for the terminal user data transmission for the terminal, where the cell is a cell of the first site.

The control plane switching includes:

control plane handover of the terminal; or,

SRB switching of the terminal; or,

The control plane of the terminal is switched from the second site to the first site; or,

The transmission of the control plane data of the terminal is switched from the second site to the first site; or,

The transmission of the control signaling of the terminal is switched from the second site to the first site; or,

The transmission of the control signaling of the terminal and the transmission of part of the user data are switched from the second site to the first site.

The specific process of each unit in the terminal in the embodiment of the present invention to realize their respective functions is the same as the process described in the foregoing embodiments shown in FIG. 4 to FIG. 6 , and will not be repeated here.

In this embodiment of the present invention, a first message is generated for the second station and sent to the second station, and the first message includes first configuration information, wherein the first configuration information includes configuration information of a scheduling request SR or a probe Configuration information of reference signal SRS or configuration information of sending data, the first configuration information is used for the terminal to send first access information to the first station to access the first station, without first performing random access Therefore, the access speed between the UE and the target base station is accelerated, and the signaling interaction process between the UE and the target base station is reduced, thereby reducing the time delay for accessing the target base station.

The processes of each unit in the station in the embodiment of the present invention to realize their respective functions are the same as those in some embodiments of the aforementioned method, and will not be repeated here.

Referring to Figure 12, the embodiment of the present invention also provides a site, including:

The receiving information unit 1201 is configured to receive a first message sent by a first station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS, or configuration information of sending data configuration information;

A sending information unit 1202, configured to send a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used for the terminal to send a first connection to the first station In order to access the first station for communication, the first access information is the SR or the SRS or ACK or NACK or the data.

Wherein, the first configuration information is used for the terminal to send first access information to the first station to access the first station for communication, so that the terminal does not initiate a random access to the first station access, and directly send the first access information to the first station to access the first station; or,

sending the first access information directly to the first station to access the first station; or,

Sending the first access information to the first station instead of performing random access to access the first station.

The first message described in this embodiment also includes:

second configuration information, where the second configuration information is TA=0 between the terminal and the first station, or,

the first instruction message;

The second configuration information or the first indication information,

used to indicate not to initiate random access to the first station, or,

It is used to indicate not to initiate random access to the first station, and to directly send the first access information to access the first station; or,

used to indicate to directly send the first access information to access the first site; or,

It is used to instruct to send the first access information instead of performing random access, so as to access the first station.

further,

The sending information unit 1202 is further configured to send a third message to the first site, where the third message is used to request switching of the user plane of the terminal, or switching of the control plane, or switching of the control plane and the user plane to different sites respectively .

Wherein, the user plane switching includes:

User plane handover of the terminal; or,

DRB switching of the terminal; or,

User plane bearer switching of the terminal; or,

The user plane of the terminal is switched from the second site locally to the first site; or,

The transmission of the user plane data of the terminal is switched locally from the second site to the first site; or,

The transmission of the user data of the terminal is switched from the third site to the first site; or,

Establishing a user plane of the terminal on the first site; or,

Establishing a bearer/DRB/user plane bearer of the terminal on the first site; or,

Adding a cell for the terminal user data transmission for the terminal, where the cell is a cell of the first site.

The control plane switching includes:

control plane handover of the terminal; or,

SRB switching of the terminal; or,

The control plane of the terminal is switched from the second site to the first site; or,

The transmission of the control plane data of the terminal is switched from the second site to the first site; or,

The transmission of the control signaling of the terminal is switched from the second site to the first site; or,

The transmission of the control signaling of the terminal and the transmission of part of the user data are switched from the second site to the first site.

The first configuration information described in this embodiment includes at least one of the following:

The time-frequency resource information of the SR, the configuration index of the SR (SR CONFIGUREINDEX), the physical uplink control channel resource block index of the SR (SR PUCCH resourceindex), the time-frequency resource information of the SRS, the SRS uplink configuration information element.

further,

The information sending unit 1202 is further configured to receive a fourth message from the terminal, where the fourth message is used to notify the terminal that the configuration is completed.

The sending information unit 1202 is further configured to send a fifth message to the first station, where the fifth message is used to notify the first station that the terminal has completed the configuration, and/or notify the first station that the terminal communication.

The information receiving unit 1201 is further configured to receive an activation message sent by the first station, where the activation message sent by the first station is used to instruct the terminal to directly communicate with the first station or to instruct the terminal to communicate with the first station. The first station sends first access information, where the first access information is used to request or activate communication with the first station;

or,

The sending information unit 1202 is further configured to send an activation message to the terminal, for instructing the terminal to directly communicate with the first site or instructing the terminal to send first access information to the first site, so The first access information is used to request or activate communication with the first station;

or,

The sending information unit 1202 is further configured to send an activation message to the terminal and the first station, notifying the terminal to communicate with the first station;

or,

The sending information unit 1202 is further configured to send the time-frequency resource information of the terminal sending the RRC connection reconfiguration complete message/handover complete message to the first station contained in the received first message to the terminal .

The first message in this embodiment also includes at least one of the following:

The base station identifier of the source user plane base station of the terminal, the cell identifier of the source user plane base station of the terminal, the identifier of the source control plane base station of the terminal, the cell identifier of the source control plane base station of the terminal, the terminal The indication of the target base station for handover and the indication of the target cell for handover by the terminal.

The first message described in this embodiment also includes:

The terminal maintains the configuration indication information with the user plane base station during the control plane handover, or the terminal maintains the configuration indication information with the control plane base station during the user plane handover.

The configuration information of the first access information includes at least one of the following:

MAC layer configuration information, packet data convergence protocol PDCP layer configuration information, radio link control protocol RLC layer configuration information, physical layer PHY configuration information, data radio bearer DRB(s) configuration information, logic Channel configuration information, packet data convergence protocol sequence number PDCP SN.

The sending information unit 1202 is further configured to send a first indication message to the third station, where the first indication message is used to instruct the third station to stop communicating with the terminal.

In this embodiment, the site may further include:

Establishing a channel unit 1203, configured to establish a data transmission channel with the first station;

or,

The channel establishment unit 1203 is configured to establish a data transmission channel with the first station, and the message sending unit is also configured to send the data of the terminal to the first station.

The sending information unit 1202 is further configured to send a second indication message to the third station, where the second indication message is used to instruct the third station to release the resources reserved for the terminal, or the Configuration information of the terminal, or context information of the terminal.

The sending information unit 1202 is further configured to send a third indication message to the third station, where the third indication message is used to instruct the third station to continue communicating with the terminal.

The specific process of each unit in the station in the embodiment of the present invention to realize their respective functions is the same as the process described in the foregoing embodiment shown in FIG. 7 to FIG. 9 , and will not be repeated here.

In the embodiment of the present invention, the second message sent by the second station is received, the second message is used to switch the terminal or add at least one cell for data transmission to the terminal, and the first station sends the first message to For the second station, the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration information of sending data, and the first The configuration information is used for the terminal to send the first access information to the first station to access the first station. It is not necessary to perform random access first, that is, it needs to first request resources from the target base station. Therefore, the connection between the UE and the first station is accelerated. The access speed of the target base station reduces the signaling interaction process between the UE and the target base station, thereby reducing the time delay for accessing the target base station.

Referring to Fig. 13, the embodiment of the present invention also provides a system for accessing a site, including:

End, 1301, the first station 1302, the second station 1303;

Wherein, the terminal 1301 is configured to receive a first message sent by the second station, the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a configuration of a sounding reference signal SRS information or configuration information for sending data; according to the first configuration information, send first access information to the first station to access the first station for communication, and the first access information is the SR or The SRS or ACK or NACK or the data;

The first station 1302 is configured to generate a first message for the second station; send the first message to the second station, the first message includes first configuration information, and the first configuration information includes a scheduling request SR configuration information or sounding reference signal SRS configuration information or data transmission configuration information, the first configuration information is used for the terminal to send first access information to the first station to access the first station , the first access information is the SR or the SRS or ACK or NACK or the data;

The second station 1303 is configured to receive a first message sent by the first station, where the first message includes first configuration information, and the first configuration information includes configuration information or transmission of a scheduling request SR or a sounding reference signal SRS Data configuration information; sending a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used for the terminal to send first access information to the first station Communication is performed by accessing the first station, and the first access information is the SR or the SRS or ACK or NACK or the data.

The specific processes of the terminal, the first station, and the second station in the access station system in the embodiment of the present invention to realize their respective functions are the same as those described in the foregoing embodiments shown in FIGS. 1 to 12 , and will not be repeated here. .

The functions of each functional module of the device for processing test parameters in this embodiment can be specifically implemented according to the method in the above method embodiment, and the specific implementation process can refer to the relevant description of the above method embodiment, and will not be repeated here.

Those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, the above-mentioned storage medium It can be read-only memory, disk or CD-ROM, etc.

The method, device and system for accessing a station provided by the present invention have been introduced in detail above. For those skilled in the art, according to the idea of the embodiment of the present invention, there will be changes in the specific implementation and application scope. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (128)

1. A method for accessing a site, comprising: Receive a first message sent by the second station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration information for sending data; According to the first configuration information, send first access information to the first station to access the first station for communication, where the first access information is the SR or the SRS or ACK or NACK or the the above data. 2. The method according to claim 1, wherein the sending the first access information to the first station to access the first station for communication comprises: not initiating random access to the first station, but directly sending the first access information to the first station to access the first station; or sending the first access information directly to the first station to access the first station; or Sending the first access information to the first station instead of performing random access to access the first station. 3. The method according to claim 1, wherein the first message further comprises: second configuration information, where the second configuration information is TA=0 between the UE and the first station, or the first instruction message; The second configuration information or the first indication information, used to indicate not to initiate random access to the first station, or It is used to indicate not to initiate random access to the first station, and to directly send the first access information to access the first station; or used to instruct to directly send the first access information to access the first station; or It is used to instruct to send the first access information instead of performing random access, so as to access the first station. 4. The method of claim 3, wherein, The configuration information or the first indication information is sent by the first station to the second station. 5. The method according to claim 1, wherein the sending the first access information to the first station to access the first station for communication comprises: According to the configuration information of the SR, send ACK/NACK to the first station on the resource block sending the SR, so as to access the first station for communication; or According to the configuration information of the SR, an ACK/NACK is sent to the first station on the resource block for sending the SR, so that the first station acquires the SR according to the ACK/NACK. 6. The method according to claim 1, further comprising: after receiving the first message sent by the second station: Communicating directly with the first station based on the first message. 7. The method according to claim 6, wherein the directly communicating with the first station according to the first message comprises: Obtaining configuration information of sending data included in the first message, where the configuration information of sending data is scheduling resource information allocated by the first station, and receiving or sending data to the first station on the allocated scheduling resource; communicating directly with the first station on the allocated scheduling resource according to the first message. 8. The method according to claim 1, wherein after receiving the first message sent by the second station, the method comprises: communicating directly with the first station according to the received activation message sent by the first station; or communicating directly with the first station according to the received activation message sent by the first station forwarded by the second station; or Directly communicate with the first station according to the received activation message sent by the second station. 9. The method according to claim 1, characterized in that, after receiving the first message sent by the second station, the method comprises: sending first access information to the first station to access the first station for communication; or Sending first access information to the first station to access the first station for communication according to the received activation message sent by the first station; or Sending first access information to the first station to access the first station for communication according to the received activation message sent by the first station forwarded by the second station; or Sending first access information to the first station to access the first station for communication according to the received activation message sent by the second station; or Sending an RRC connection reconfiguration complete message/handover complete message to the first station according to the bandwidth information or time-frequency resource information included in the first message, so as to access the first station for communication. 10. The method according to any one of claims 1 to 9, wherein after sending the first access information to the first station to access the first station for communication, the method comprises: If the first access information sent to the first station is SR, receiving information about the bandwidth allocated by the first station according to the SR; Sending an RRC reconfiguration complete message/handover complete message to the first station according to the allocated bandwidth. 11. The method according to any one of claims 1 to 9, wherein the configuration information of the SR includes: The time-frequency resource information (SR resource) of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index for scheduling the SR. 12. The method according to any one of claims 1 to 9, wherein the configuration information of the SRS includes: The time-frequency resource information of the SRS and/or the SRS uplink configuration information element. 13. The method according to any one of claims 1-9, wherein when the configuration information of the SR includes the configuration index of the SR and the PUCCH resource block index for scheduling the SR, the The first station sending the first access information to access the first station for communication includes: Obtaining subframe information for sending the SR according to the SR configuration index; Acquiring resource block information for sending the SR according to the PUCCH resource block index of the SR; Sending the SR or ACK or NACK to the first station on the resource block of the subframe. 14. The method according to claim 5, wherein the sending ACK/NACK to the first station on the resource block sending the SR comprises: The sending ACK/NACK to the first station on the resource block that sends the SR is the first communication with the first station. 15. The method according to claim 5, characterized in that before sending ACK/NACK to the first station on the resource block for sending the SR, comprising: resource information for feeding back ACK/NACK to the first station is not received; or There is no HARQ or ARQ communication with the first station. 16. The method according to claim 5, wherein the ACK/NACK is sent to the first station on the resource block that sends the SR, so that the first station acquires The SRs include: Sending ACK/NACK on the PUCCH resource block that sends the SR, so that the first station obtains the SR, so as to access the first station for communication. 17. The method according to claim 5, characterized in that ACK/NACK is sent to the first station on the PUCCH resource block that sends the SR, so that the first station acquires The SRs include: Send ACK/NACK on the PUCCH resource block that sends the SR, so that the first station obtains the SR to access the first station for communication, and the SR is the first station sent to the first station an SR. 18. The method according to any one of claims 1 to 9, 14 to 17, wherein The first message further includes: time-frequency resource information of the RRC connection reconfiguration complete message/handover complete message sent by the first station; The sending the first access information to the first station to access the first station for communication includes: Sending the RRC connection reconfiguration complete message/handover complete message on the time-frequency resource to access the first station. 19. The method according to any one of claims 1 to 9, 14 to 17, wherein the sending first access information to the first station to access the first station for communication comprises : Sending first access information to the first station to request or activate communication with the first station. 20. The method according to any one of claims 1-9, 14-17, wherein the first message further includes: indication information, the indication information is used to indicate user plane switching; or DRB switching; or user plane bearer switching; or the user plane is handed over from the second site to the first site; or transmission of user plane data is handed over from the second site to the first site; or the transmission of user data is switched from the third site to said first site; or establishing a user plane on the first site; or Establishing a bearer/DRB/user plane bearer on the first site; or A cell used for user data transmission is added, wherein the cell is a cell of the first site. 21. The method according to any one of claims 1-9, 14-17, wherein the first message further includes: instruction information, the instruction information is used to indicate control surface switching; or SRB switching; or a control plane handover from the second site to the first site; or transmission of control plane data is switched from said second site to said first site; or handover of transmission of control signaling from the second site to the first site; or The transmission of control signaling and the transmission of part of user data are switched from the second site to the first site. 22. The method according to any one of claims 1-9, 14-17, wherein the first message further includes at least one of the following: Identification information of the first station, cell identification information of the first station, carrier information of the first station, carrier information of a cell of the first station, and scheduling resource information allocated by the first station. 23. The method according to any one of claims 1-9, 14-17, wherein the first message further includes: Maintain configuration information or configuration indication information with the user plane base station during control plane handover, or maintain configuration information or configuration indication information with the control plane base station during user plane handover. 24. The method according to any one of claims 1-9, 14-17, wherein the first message further includes at least one of the following: MAC layer configuration information, packet data convergence protocol PDCP layer configuration information, radio link control protocol RLC layer configuration information, physical layer PHY configuration information, data radio bearer DRB(s) configuration information, logical channel The configuration information of the packet data convergence protocol sequence number PDCPSN. 25. The method according to claim 1, wherein the ACK or NACK comprises: The ACK or NACK is a special SR; or The ACK or NACK is the first SR communicated with the first station; or The ACK or NACK is used instead of performing random access to access the first station. 26. A method for accessing a site, comprising: generating a first message for a second site; sending a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or configuration information of sending data , the first configuration information is used for the terminal to send first access information to the first station to access the first station, where the first access information is the SR or the SRS or ACK or NACK or the the above data. 27. The method according to claim 26, wherein the first configuration information is used for the terminal to send first access information to the first site to access the first site for communication, comprising: The first configuration information is used for the terminal not to initiate random access to the first site, but to directly send the first access information to the first site to access the first site; or The terminal directly sends the first access information to the first site to access the first site; or The terminal sends the first access information to the first station instead of performing random access, so as to access the first station. 28. The method according to claim 26, wherein the first message further comprises: second configuration information, where the second configuration information is TA=0 between the terminal and the first station, or the first instruction message; The second configuration information or the first indication information, used to instruct the terminal not to initiate random access to the first station, or Instructing the terminal not to initiate random access to the first site, but to directly send the first access information to access the first site; or used to instruct the terminal to directly send the first access information to access the first site; or It is used to instruct the terminal to send the first access information instead of performing random access, so as to access the first site. 29. The method according to claim 26, characterized in that before sending the first message to the second station, the method comprises: Receive a second message sent by the second station, where the second message is used to switch the terminal or add at least one cell for the terminal. 30. The method according to claim 26, characterized in that, after sending the first message to the second station, comprising: Receive a third message sent by the second station, where the third message is used to notify the terminal that the configuration is completed and/or to notify the start of communication with the terminal. 31. The method according to claim 26, further comprising: after sending the first message to the second station: receiving the data sent by the terminal, and starting to communicate with the terminal; or Receiving first access information sent by the terminal, where the first access information is used to request or activate communication with the terminal. 32. The method of claim 26, further comprising: receiving an activation message sent by the second station, where the activation message is used to request or activate communication with the terminal; receiving the data from the terminal, and starting to communicate with the terminal, or receiving first access information sent by the terminal, where the first access information is used for the terminal to access and communicate. 33. The method according to claim 30, further comprising: after sending the first message to the second station or receiving the third message sent by the second station: Send an activation message to the terminal to request or activate communication with the terminal; receiving the data from the terminal, and starting to communicate with the terminal, or receiving first access information sent by the terminal, where the first access information is used for the terminal to access and communicate. 34. The method according to claim 30, further comprising: after receiving the third message sent by the second station: sending an activation message to the second station, so that the second station sends a second activation message to the terminal for requesting or activating communication with the terminal; receiving the data from the terminal, and starting to communicate with the terminal, or receiving first access information sent by the terminal, where the first access information is used for the terminal to access and communicate. 35. The method according to any one of claims 26-32, 34, further comprising: receiving first access information sent by the terminal; or receiving first access information sent by the terminal; If the first access information is SR, the configuration information of the first access information includes the bandwidth allocated for the terminal, and the allocated bandwidth is used for the terminal to send an RRC reconfiguration complete message/ Handover complete message, and receive the RRC reconfiguration complete message/handover complete message sent by the terminal on the allocated bandwidth. 36. The method according to any one of claims 26-32, 34, wherein the receiving the first access information sent by the terminal comprises: receiving the ACK/NACK sent by the terminal on the resource block of the SR. 37. The method according to claim 36, wherein the receiving the ACK/NACK sent by the terminal on the resource block of the SR comprises: Before receiving the ACK/NACK sent by the terminal on the resource block of the SR, the terminal is not allocated resources for feeding back ACK/NACK; or Before receiving the ACK/NACK sent by the terminal on the resource block of the SR, there is no ARQ/HARQ communication with the terminal; or The sending ACK/NACK to the first station on the resource block that sends the SR is the first communication with the first station. 38. The method according to claim 37, wherein the receiving ACK/NACK sent by the terminal on the resource block of the SR comprises: receiving the ACK/NACK sent by the terminal on the resource block of the SR, and obtaining the SR according to the ACK/NACK, so that the terminal accesses and communicates. 39. The method according to claim 38, wherein the receiving terminal sends ACK/NACK on the resource block of the SR, and obtains the SR according to the ACK/NACK for activation Communications with said terminal, including: Send ACK/NACK on the PUCCH resource block where the SR is sent, so as to obtain the SR, so that the terminal accesses and communicates, and the SR is the first SR sent by the terminal. 40. The method according to claim 26, wherein the first configuration information includes at least one of the following: The time-frequency resource information of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index of the SR, the time-frequency resource information of the SRS, or the SRS uplink configuration information element. 41. The method of claim 29, wherein the second message further comprises: The terminal sends the time-frequency resource information of the RRC connection reconfiguration complete message/handover complete message. 42. The method of claim 41, further comprising: receiving the RRC connection reconfiguration complete message/handover complete message sent by the terminal on the time-frequency resource to start communicating with the terminal. 43. The method according to claim 29 or 41, further comprising: after sending the second message to the second station: Receive a third message sent by the second station, where the third message is used to notify the terminal that the configuration is completed and/or notify the terminal to start communicating with the terminal. 44. The method according to any one of claims 26-32, 34, wherein the first access information is used for the terminal to access and communicate, including: the first access information is used for Requesting or activating communication with said terminal. 45. The method according to claim 38, wherein the acquiring the SR according to the ACK/NACK, so that the terminal accesses and communicates, comprises: Obtaining the SR according to the ACK/NACK is used for requesting or activating communication with the terminal. 46. The method according to any one of claims 26-32, 34, characterized in that after sending the second message to the second station, it further comprises: Establish a data transmission channel with the second station. 47. The method according to any one of claims 26-32, 34, characterized in that after sending the second message to the second station, it further comprises: A first indication message sent to the third station, where the first indication message is used to instruct the third station to stop communication with the terminal. 48. The method according to any one of claims 26-32, 34, characterized in that after sending the second message to the second station, it further comprises: Receive a second indication message sent by the second station, where the second indication message is used to instruct a third station to release the resources reserved for the terminal, or the terminal configuration information, or the terminal context information. 49. The method according to any one of claims 26-32, 34, characterized in that after sending the second message to the second station, it further comprises: Receive a third indication message sent by the second station, where the third indication message is used to instruct the third station to continue communicating with the terminal. 50. The method according to any one of claims 26-32, 34, characterized in that after sending the second message to the second station, it further comprises: Receive the data of the terminal forwarded by the second station. 51. The method according to claim 29, wherein said switching the terminal comprises: The user plane of the terminal is switched, or the control plane is switched, or the control plane and the user plane are switched to different sites. 52. The method according to claim 51, wherein the user plane handover comprises: User plane switching of the terminal, DRB switching of the terminal; or User plane bearer switching of the terminal; or The user plane of the terminal is handed over from the second site to local; or The transmission of the user plane data of the terminal is switched from the second site to the local site; or the transmission of the user data of the terminal is switched from the third site to the first site; or establishing a user plane of the terminal on the first site; or Establishing a bearer/DRB/user plane bearer of the terminal on the first site; or Adding a cell for the terminal user data transmission for the terminal, where the cell is a cell of the first site. 53. The method according to claim 51, wherein the switching of the control plane comprises: Control plane switching of the terminal; or SRB switching of the terminal; or switching the control plane of the terminal from the second site to the first site; or The transmission of the control plane data of the terminal is switched from the second site to the first site; or The transmission of the control signaling of the terminal is switched from the second site to the first site; or The transmission of the control signaling of the terminal and the transmission of part of the user data are switched from the second site to the first site. 54. The method according to claim 26, wherein the ACK or NACK comprises: The ACK or NACK is a special SR; or The ACK or NACK is the first SR communicated with the first station; or The ACK or NACK is used instead of performing random access to access the first station. 55. A method for accessing a site, comprising: Receive a first message sent by the first station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration information of sending data; sending a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used for the terminal to send first access information to the first station to access the first The station communicates, and the first access information is the SR or the SRS or the ACK or NACK or the data. 56. The method according to claim 55, wherein the first configuration information used by the terminal to send first access information to the first site to access the first site for communication comprises: The first configuration information is used by the terminal to send first access information to the first station to access the first station for communication, so that the terminal does not initiate random access to the first station, Instead, directly send the first access information to the first station to access the first station; or sending the first access information directly to the first station to access the first station; or Sending the first access information to the first station instead of performing random access to access the first station. 57. The method according to claim 55, wherein the first message further comprises: second configuration information, where the second configuration information is TA=0 between the terminal and the first station, or the first instruction message; The second configuration information or the first indication information, used to indicate not to initiate random access to the first station, or It is used to indicate not to initiate random access to the first station, and to directly send the first access information to access the first station; or used to instruct to directly send the first access information to access the first station; or It is used to instruct to send the first access information instead of performing random access, so as to access the first station. 58. The method according to claim 55, further comprising: before receiving the first message sent by the first station: Sending a third message to the first site, where the third message is used to request to switch the user plane of the terminal, or switch the control plane, or switch the control plane and the user plane to different sites respectively. 59. The method according to claim 58, wherein the user plane handover comprises: User plane switching of the terminal; or DRB switching of the terminal; or User plane bearer switching of the terminal; or The user plane of the terminal is handed over from the local second site to the first site; or The transmission of the user plane data of the terminal is locally switched from the second site to the first site; or the transmission of the user data of the terminal is handed over from the third site to the first site; or establishing a user plane of the terminal on the first site; or Establishing a bearer/DRB/user plane bearer of the terminal on the first site; or Adding a cell for the terminal user data transmission for the terminal, where the cell is a cell of the first site. 60. The method according to claim 58, wherein the control plane switching comprises: Control plane switching of the terminal; or SRB switching of the terminal; or The control plane of the terminal is switched from the second site to the first site; or The transmission of the control plane data of the terminal is switched from the second site to the first site; or The transmission of the control signaling of the terminal is switched from the second site to the first site; or The transmission of the control signaling of the terminal and the transmission of part of the user data are switched from the second site to the first site. 61. The method according to any one of claims 55 to 60, wherein the first configuration information includes at least one of the following: The time-frequency resource information of the SR, the configuration index (SR CONFIGURE INDEX) of the SR, the physical uplink control channel resource block index (SR PUCCH resource index) of the SR, the time-frequency resource information of the SRS, The SRS uplink configuration information element. 62. The method according to any one of claims 55 to 60, further comprising: after sending the second message to the terminal: Receive a fourth message from the terminal, where the fourth message is used to notify the terminal that the configuration is completed. 63. The method according to claim 62, further comprising: after receiving the fourth message from the terminal: Sending a fifth message to the first station, where the fifth message is used to notify the first station that the configuration of the terminal is completed, and/or notify the first station to communicate with the terminal. 64. The method according to claim 63, characterized in that, after sending the fifth message to the first station, comprising: receiving an activation message sent by the first station, where the activation message sent by the first station is used to instruct the terminal to directly communicate with the first station or instruct the terminal to send first access information to the first station , the first access information is used to request or activate communication with the first station; or sending an activation message to the terminal, for instructing the terminal to directly communicate with the first site or instructing the terminal to send first access information to the first site, where the first access information is used to request or activating communication with said first station; or sending an activation message to the terminal and the first site, notifying the terminal to communicate with the first site; or and sending the time-frequency resource information of the terminal sending the RRC connection reconfiguration complete message/handover complete message to the first station contained in the received first message to the terminal. 65. The method according to any one of claims 55 to 60, wherein the first message further includes at least one of the following: The base station identifier of the source user plane base station of the terminal, the cell identifier of the source user plane base station of the terminal, the identifier of the source control plane base station of the terminal, the cell identifier of the source control plane base station of the terminal, the terminal The indication of the target base station for handover and the indication of the target cell for handover by the terminal. 66. The method according to any one of claims 55 to 60, wherein the first message further includes: The terminal maintains the configuration indication information with the user plane base station during the control plane handover, or the terminal maintains the configuration indication information with the control plane base station during the user plane handover. 67. The method according to any one of claims 55 to 60, wherein the configuration information of the first access information includes at least one of the following: MAC layer configuration information, packet data convergence protocol PDCP layer configuration information, radio link control protocol RLC layer configuration information, physical layer PHY configuration information, data radio bearer DRB(s) configuration information, logic Channel configuration information, packet data convergence protocol sequence number PDCPSN. 68. The method according to any one of claims 55 to 60, further comprising: after receiving the first message from the first station: Sending a first indication message to the third station, where the first indication message is used to instruct the third station to stop communication with the terminal. 69. The method according to any one of claims 55 to 60, further comprising: after receiving the first message from the first station: Establish a data transmission channel with the first station; or Establish a data transmission channel with the first station, and send the data of the terminal to the first station. 70. The method according to claim 62, further comprising: after receiving the fourth message sent by the terminal: Sending a second indication message to the third station, where the second indication message is used to instruct the third station to release the resources reserved for the terminal, or configuration information of the terminal, or context information of the terminal. 71. The method according to claim 70, wherein after sending the second indication message to the third station comprises: Sending a third indication message to the third station, where the third indication message is used to instruct the third station to continue communicating with the terminal. 72. A terminal, characterized by comprising: A receiving unit, configured to receive a first message sent by a second station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS or transmission data The configuration information used; A sending unit, configured to send first access information to the first station to access the first station for communication according to the first configuration information, where the first access information is the SR or the SRS or ACK or NACK or data. 73. The terminal according to claim 72, characterized in that, The sending unit is configured to directly send the first access information to the first station to access the first station without initiating random access to the first station; or sending the first access information directly to the first station to access the first station; or Sending the first access information to the first station instead of performing random access to access the first station. 74. The terminal of claim 72, wherein The first message also includes: second configuration information, where the second configuration information is TA=0 between the UE and the first station, or the first instruction message; The second configuration information or the first indication information, used to indicate not to initiate random access to the first station, or It is used to indicate not to initiate random access to the first station, and to directly send the first access information to access the first station; or used to instruct to directly send the first access information to access the first station; or It is used to instruct to send the first access information instead of performing random access, so as to access the first station. 75. The terminal according to claim 74, characterized in that, The sending unit is further configured to send ACK/NACK to the first station on the resource block sending the SR according to the configuration information of the SR, so as to access the first station for communication; Or, according to the configuration information of the SR, send an ACK/NACK to the first station on the resource block sending the SR, so that the first station acquires the SR according to the ACK/NACK. 76. The terminal according to claim 75, further comprising: A communication unit, configured to directly communicate with the first station according to the first message. 77. The terminal according to claim 76, further comprising: An acquiring unit, configured to acquire configuration information of sending data included in the first message, where the configuration information of sending data is scheduling resource information allocated by the first station, and receive or send data to the assigned scheduling resource on the allocated scheduling resource Describe the first site. 78. The terminal according to any one of claims 72 to 77, wherein: The communication unit is further configured to directly communicate with the first station according to the received activation message sent by the first station; or communicating directly with the first station according to the received activation message sent by the first station forwarded by the second station; or Directly communicate with the first station according to the received activation message sent by the second station. 79. The terminal according to any one of claims 72 to 77, wherein: The sending unit is also used for, sending first access information to the first station to access the first station for communication; or, Sending first access information to the first station to access the first station for communication according to the received activation message sent by the first station; or Sending first access information to the first station to access the first station for communication according to the received activation message sent by the first station forwarded by the second station; or Sending first access information to the first station to access the first station for communication according to the received activation message sent by the second station; or Sending an RRC connection reconfiguration complete message/handover complete message to the first station according to the bandwidth information or time-frequency resource information included in the first message, so as to access the first station for communication. 80. The terminal according to any one of claims 72 to 77, wherein The receiving unit is further configured to receive bandwidth information allocated by the first station according to the SR if the first access information sent to the first station is SR; The sending unit is further configured to send an RRC reconfiguration complete message/handover complete message to the first station according to the allocated bandwidth. 81. The terminal according to any one of claims 72 to 77, wherein the configuration information of the SR includes: The time-frequency resource information (SR resource) of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index for scheduling the SR; The configuration information of the SRS includes: time-frequency resource information of the SRS or the SRS uplink configuration information element. 82. The terminal of claim 77, wherein The obtaining unit is further configured to obtain subframe information for sending the SR according to the SR configuration index; and is also used for obtaining resource block information for sending the SR according to the resource block index of the SR; The sending unit is further configured to send the SR or ACK or NACK to the first station on the resource block of the subframe. 83. The terminal according to any one of claims 72 to 77, wherein: The sending unit is further configured to send ACK/NACK on the PUCCH resource block that sends the SR, so that the first station obtains the SR to access the first station for communication, and the SR is sent to the the first SR of the first site; The first message also includes: the time-frequency resource information of the RRC connection reconfiguration complete message/handover complete message sent by the first station; the sending unit is also used for the RRC connection reconfiguration message sent by the first station On the time-frequency resource corresponding to the time-frequency resource information of the configuration complete message/handover complete message, an RRC connection reconfiguration complete message/handover complete message is sent to access the first station. 84. The terminal according to any one of claims 72 to 77, wherein The first message further includes: indication information, where the indication information is used to indicate, user plane switching; or DRB switching; or user plane bearer switching; or the user plane is handed over from the second site to the first site; or transmission of user plane data is handed over from the second site to the first site; or the transmission of user data is switched from the third site to said first site; or establishing a user plane on the first site; or Establishing a bearer/DRB/user plane bearer on the first site; or adding a cell for user data transmission, wherein the cell is a cell of the first site; or The indication information is used to indicate, control surface switching; or SRB switching; or a control plane handover from the second site to the first site; or transmission of control plane data is switched from said second site to said first site; or handover of transmission of control signaling from the second site to the first site; or The transmission of control signaling and the transmission of part of user data are switched from the second site to the first site. 85. The terminal according to any one of claims 72 to 77, wherein: The first message further includes at least one of the following: identification information of the first station, identification information of a cell of the first station, carrier information of the first station, and carrier information of a cell of the first station . Scheduling resource information allocated by the first site; The first message further includes: maintaining configuration information or configuration indication information with the user plane base station during control plane handover, or maintaining configuration information or indication information with the control plane base station during user plane handover; The first message also includes at least one of the following: configuration information of the MAC layer of media access control, configuration information of the PDCP layer of the packet data convergence protocol, configuration information of the RLC layer of the radio link control protocol, configuration information of the physical layer PHY, data Radio bearer DRB(s) configuration information, logical channel configuration information, packet data convergence protocol sequence number PDCPSN. 86. A site, comprising: a generating unit, configured to generate a first message for a second site; A message sending unit, configured to send a first message to the second station, where the first message includes first configuration information, where the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS Or configuration information for sending data, where the first configuration information is used for the terminal to send first access information to the first site to access the first site, where the first access information is the SR or the SRS Or ACK or NACK or data. 87. The site of claim 86, wherein The first configuration information is used for the terminal not to initiate random access to the first station, but to directly send the first access information to the first station to access the first station; or The terminal directly sends the first access information to the first site to access the first site; or The terminal sends the first access information to the first station instead of performing random access, so as to access the first station. 88. The station according to claim 86, wherein the first message further comprises: second configuration information, where the second configuration information is TA=0 between the terminal and the first station, or the first instruction message; The second configuration information or the first indication information is used to instruct the terminal not to initiate random access to the first station, or Instructing the terminal not to initiate random access to the first site, but to directly send the first access information to access the first site; or used to instruct the terminal to directly send the first access information to access the first site; or, It is used to instruct the terminal to send the first access information instead of performing random access, so as to access the first site. 89. The station according to any one of claims 86 to 88, further comprising: The message receiving unit is further configured to receive a second message sent by the second station, where the second message is used to switch the terminal or add at least one cell for the terminal. 90. The site of claim 89, wherein The message receiving unit is further configured to receive a third message sent by the second station, where the third message is used to notify the terminal of completion of configuration and/or to notify the start of communication with the terminal. 91. The site of claim 89, wherein The receiving message unit is also used to receive the data sent by the terminal and start communicating with the terminal; or Receiving first access information sent by the terminal, where the first access information is used to request or activate communication with the terminal. 92. The site of claim 89, wherein The message receiving unit is further configured to receive an activation message sent by the second station, where the activation message is used to request or activate communication with the terminal; receiving the data from the terminal, and starting to communicate with the terminal, or receiving first access information sent by the terminal, where the first access information is used for the terminal to access and communicate. 93. The site of claim 89, wherein The message sending unit is further configured to send an activation message to the terminal to request or activate communication with the terminal; The receiving message unit is further configured to receive the data of the terminal and start communicating with the terminal, or receive the first access information sent by the terminal, and the first access information is used for the terminal to access and communicate . 94. The site of claim 89, wherein The receiving message unit is also used for, receiving first access information sent by the terminal; or receiving first access information sent by the terminal; If the first access information is SR, the configuration information of the first access information includes the bandwidth allocated for the terminal, and the allocated bandwidth is used for the terminal to send an RRC reconfiguration complete message/ Handover complete message, and receive the RRC reconfiguration complete message/handover complete message sent by the terminal on the allocated bandwidth. 95. The site of claim 89, wherein The receiving message unit is further configured to receive the ACK/NACK sent by the terminal on the resource block of the SR. 96. The site of claim 95, wherein The message receiving unit is further configured to receive the ACK/NACK sent by the terminal on the resource block of the SR, and obtain the SR according to the ACK/NACK, so that the terminal accesses and communicates. 97. A station according to any one of claims 86 to 88, wherein The message sending unit is further configured to send ACK/NACK on the PUCCH resource block that sends the SR, so as to obtain the SR, so that the terminal accesses and communicates, and the SR is received from the terminal The first SR. 98. The station according to claim 86, wherein the first configuration information includes at least one of the following: The time-frequency resource information of the SR, the configuration index of the SR, or the physical uplink control channel PUCCH resource block index of the SR, the time-frequency resource information of the SRS, and the SRS uplink configuration information element. 99. The station of claim 89, wherein the second message comprises: The terminal sends the time-frequency resource information of the RRC connection reconfiguration complete message/handover complete message. 100. The site of claim 99, wherein The message receiving unit is further configured to receive an RRC connection reconfiguration complete message/handover complete message sent by the terminal on the time-frequency resource, so as to start communicating with the terminal. 101. A station according to any one of claims 86 to 88, 98, wherein The message receiving unit is further configured to receive a third message sent by the second station, where the third message is used to notify the terminal that the configuration is completed and/or notify the terminal to start communicating with the terminal. 102. A station according to any one of claims 86 to 88, 98, wherein The first access information is used for terminal access to perform communication, including: the first access information is used for requesting or activating communication with the terminal. 103. The station according to any one of claims 86 to 88, 98, further comprising: An acquiring information unit, configured to acquire the SR according to the ACK/NACK, so as to request or activate communication with the terminal. 104. The station according to any one of claims 86 to 88, 98, further comprising: An establishing unit, configured to establish a data transmission channel with the second station. 105. A station according to any one of claims 86 to 88, 98, wherein The message sending unit is further configured to send a first indication message to a third station, where the first indication message is used to instruct the third station to stop communicating with the terminal. 106. A station according to any one of claims 86 to 88, 98, wherein The message receiving unit is further configured to receive a second indication message sent by the second station, where the second indication message is used to instruct the third station to release resources reserved for the terminal, or the terminal Configuration information, or the terminal context information. 107. The station according to any one of claims 86 to 88, 98, characterized in that after sending the second message to the second station, it further includes: The message receiving unit is further configured to receive a third indication message sent by the second station, where the third indication message is used to instruct the third station to continue communicating with the terminal. 108. A station according to any one of claims 86 to 88, 98, characterized in that: The message receiving unit is further configured to receive terminal data forwarded by the second station. 109. The station according to claim 89, wherein said switching the terminal comprises: The user plane of the terminal is switched, or the control plane is switched, or the control plane and the user plane are switched to different sites. 110. The station according to any one of claims 86 to 88, 98, wherein the user plane switching includes: user plane handover of the terminal, DRB switching of the terminal; or User plane bearer switching of the terminal; or The user plane of the terminal is handed over from the second site to local; or The transmission of the user plane data of the terminal is switched from the second site to the local site; or the transmission of user data of the terminal is handed over from the third site to the first site; or establishing a user plane of the terminal on the first site; or Establishing a bearer/DRB/user plane bearer of the terminal on the first site; or adding a cell for the terminal user data transmission for the terminal, where the cell is a cell of the first site; The control plane switching includes: control plane switching of the terminal; or SRB switching of the terminal; or switching the control plane of the terminal from the second site to the first site; or The transmission of the control plane data of the terminal is switched from the second site to the first site; or The transmission of the control signaling of the terminal is switched from the second site to the first site; or The transmission of the control signaling of the terminal and the transmission of part of the user data are switched from the second site to the first site. 111. A site, characterized by comprising: A receiving information unit, configured to receive a first message sent by a first station, where the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or a sounding reference signal SRS or configuration of sending data information; a sending information unit, configured to send a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used by the terminal to send the first access information to the first station to accessing the first station for communication, and the first access information is the SR or the SRS or ACK or NACK or the data. 112. The site of claim 111, wherein The first configuration information is used by the terminal to send first access information to the first station to access the first station for communication, so that the terminal does not initiate random access to the first station, Instead, directly send the first access information to the first station to access the first station; or sending the first access information directly to the first station to access the first station; or Sending the first access information to the first station instead of performing random access to access the first station. 113. The station according to claim 111, wherein the first message further comprises: second configuration information, where the second configuration information is TA=0 between the terminal and the first station, or the first instruction message; The second configuration information or the first indication information, used to indicate not to initiate random access to the first station, or It is used to indicate not to initiate random access to the first station, and to directly send the first access information to access the first station; or used to instruct to directly send the first access information to access the first station; or It is used to instruct to send the first access information instead of performing random access, so as to access the first station. 114. A site according to any one of claims 111 to 113, wherein The sending information unit is further configured to send a third message to the first site, where the third message is used to request switching of the user plane of the terminal, or switching of the control plane, or switching the control plane and the user plane to different sites. 115. The station according to any one of claims 111 to 113, wherein the user plane handover comprises: User plane switching of the terminal; or DRB switching of the terminal; or User plane bearer switching of the terminal; or The user plane of the terminal is handed over from the local second site to the first site; or The transmission of the user plane data of the terminal is locally switched from the second site to the first site; or the transmission of the user data of the terminal is handed over from the third site to the first site; or establishing a user plane of the terminal on the first site; or Establishing a bearer/DRB/user plane bearer of the terminal on the first site; or Adding a cell for the terminal user data transmission for the terminal, where the cell is a cell of the first site. 116. The station according to any one of claims 111 to 113, wherein the control plane switching includes: Control plane switching of the terminal; or SRB switching of the terminal; or The control plane of the terminal is switched from the second site to the first site; or The transmission of the control plane data of the terminal is switched from the second site to the first site; or The transmission of the control signaling of the terminal is switched from the second site to the first site; or The transmission of the control signaling of the terminal and the transmission of part of the user data are switched from the second site to the first site. 117. The station according to any one of claims 111 to 113, wherein the first configuration information includes at least one of the following: The time-frequency resource information of the SR, the configuration index (SR CONFIGURE INDEX) of the SR, the physical uplink control channel resource block index (SR PUCCH resource index) of the SR, the time-frequency resource information of the SRS, The SRS uplink configuration information element. 118. A site according to any one of claims 111 to 113, wherein The information sending unit is further configured to receive a fourth message from the terminal, where the fourth message is used to notify the terminal that the configuration is completed. 119. The site of claim 118, wherein The sending information unit is further configured to send a fifth message to the first station, where the fifth message is used to notify the first station that the terminal is configured, and/or notify the first station that the terminal communication. 120. The site of any one of claims 111 to 113, wherein The receiving information unit is further configured to receive an activation message sent by the first station, where the activation message sent by the first station is used to instruct the terminal to directly communicate with the first station or to instruct the terminal to communicate with the first station. The station sends first access information, the first access information is used to request or activate communication with the first station; or The sending information unit is further configured to send an activation message to the terminal, for instructing the terminal to directly communicate with the first site or instructing the terminal to send first access information to the first site, the The first access information is used to request or activate communication with the first station; or The sending information unit is further configured to send an activation message to the terminal and the first station, notifying the terminal to communicate with the first station; or The sending information unit is further configured to send the time-frequency resource information of the terminal sending the RRC connection reconfiguration complete message/handover complete message to the first station contained in the received first message to the terminal. 121. The station according to any one of claims 111 to 113, wherein the first message further includes at least one of the following: The base station identifier of the source user plane base station of the terminal, the cell identifier of the source user plane base station of the terminal, the identifier of the source control plane base station of the terminal, the cell identifier of the source control plane base station of the terminal, and the handover of the terminal The identification of the target base station and the identification of the target cell for the handover of the terminal. 122. The station according to any one of claims 111 to 113, wherein the first message further includes: The terminal maintains configuration indication information with the user plane base station when the control plane is handed over, or The terminal maintains configuration indication information with the control plane base station when the user plane is handed over. 123. The station according to any one of claims 111 to 113, wherein the configuration information of the first access information includes at least one of the following: MAC layer configuration information, packet data convergence protocol PDCP layer configuration information, radio link control protocol RLC layer configuration information, physical layer PHY configuration information, data radio bearer DRB(s) configuration information, logic Channel configuration information, packet data convergence protocol sequence number PDCPSN. 124. A site according to any one of claims 111 to 113, wherein The information sending unit is further configured to send a first indication message to a third station, where the first indication message is used to instruct the third station to stop communication with the terminal. 125. The site according to any one of claims 111 to 113, further comprising: establishing a channel unit, configured to establish a data transmission channel with the first station; or The channel establishment unit is configured to establish a data transmission channel with the first station, and the message sending unit is further configured to send the data of the terminal to the first station. 126. The site of any one of claims 111 to 113, wherein The sending information unit is further configured to send a second indication message to a third station, where the second indication message is used to instruct the third station to release resources reserved for the terminal, or configuration information of the terminal, Or the context information of the terminal. 127. The site of any one of claims 111 to 113, wherein The sending information unit is further configured to send a third indication message to a third station, where the third indication message is used to instruct the third station to continue communicating with the terminal. 128. A system for accessing a site, comprising: terminal, first station, second station; Wherein, the terminal is configured to receive a first message sent by the second station, the first message includes first configuration information, and the first configuration information includes configuration information of a scheduling request SR or configuration information of a sounding reference signal SRS Or configuration information for sending data; according to the first configuration information, send first access information to the first station to access the first station for communication, where the first access information is the SR or the The SRS or ACK or NACK or the data; The first station is configured to generate a first message for the second station; send the first message to the second station, the first message includes first configuration information, and the first configuration information includes a scheduling request SR The configuration information of the sounding reference signal SRS or the configuration information of the sending data, the first configuration information is used for the terminal to send the first access information to the first station to access the first station, and the first The access information is the SR or the SRS or ACK or NACK or the data; The second station is configured to receive a first message sent by the first station, where the first message includes first configuration information, and the first configuration information includes configuration information or transmission data of a scheduling request SR or a sounding reference signal SRS configuration information; sending a second message to the terminal, where the second message includes the first configuration information, and the first configuration information is used by the terminal to send the first access information to the first station to accessing the first station for communication, and the first access information is the SR or the SRS or ACK or NACK or the data.