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WO2018126547A1 - Procédé de communication, dispositif associé et système - Google Patents

Procédé de communication, dispositif associé et système Download PDF

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Publication number
WO2018126547A1
WO2018126547A1 PCT/CN2017/079017 CN2017079017W WO2018126547A1 WO 2018126547 A1 WO2018126547 A1 WO 2018126547A1 CN 2017079017 W CN2017079017 W CN 2017079017W WO 2018126547 A1 WO2018126547 A1 WO 2018126547A1
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WIPO (PCT)
Prior art keywords
base station
terminal
radio resource
signal quality
link
Prior art date
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Ceased
Application number
PCT/CN2017/079017
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English (en)
Chinese (zh)
Inventor
董雪峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201780082575.4A priority Critical patent/CN110178433B/zh
Publication of WO2018126547A1 publication Critical patent/WO2018126547A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a communication method, related device, and system.
  • Dual connectivity in the communication technology is a kind of work of User Equipment (UE) in the RRC_CONNECTED of Radio Resource Control (RRC).
  • UE User Equipment
  • RRC Radio Resource Control
  • the UE needs to access a primary cell group (English: Master Cell Group, MCG for short) and a secondary cell group (English: Secondary Cell Group, SCG for short).
  • the UE in the RRC_CONNECTED state may be configured to use the radio resources provided by two different eNBs, one as the primary base station ( The master eNodeB (MeNB) provides the MCG, and the secondary eNB (English: Secondary eNB, SeNB for short) provides the SCG.
  • the two eNBs are connected by the X2 interface.
  • the bearer situation of each link between the UE, the MeNB, the SeNB, and the core network is as shown in FIG. 1.
  • the UE is in the link in the MCG
  • the UE is in the SCG.
  • the link between the link between the MeNB and the SeNB, the link between the MeNB and the CN, and the link between the SeNB and the CN can carry the control plane (English: control plane, CP: data) and the user plane.
  • Control plane referred to as UP data
  • the line in Figure 1 represents the link
  • the larger ellipse indicates the range of the MCG
  • the smaller ellipse indicates the range of the SCG.
  • the network configures the UE to exit the DC mode (along with modifying the link between the UE and the eNB, and the eNB and the EPC). Between the links). If the UE is in the RRC_CONNECTION state and there is no DC connection, when the radio signal quality or traffic bearer satisfies the condition of DC entry, the network configures the UE to enter the DC (along with modifying the link between the UE and the eNB, and between the eNB and the EPC). Link).
  • the MCG in the Tight interworking mode adopts the DC mode adopts the LTE technology
  • the SCG adopts the 5G technology, which is adopted by the LTE technology and the 5G technology.
  • the technology will vary in throughput and latency, causing the network to frequently switch to the DC state and exit the DC state. Switching to the DC state is accompanied by the establishment of the link, and exiting the DC state is accompanied by the logout of the link; the UE is at the MCG.
  • the establishment or deregistration of the link in the /SCG requires the interaction between the MeNB/SeNB and the CN. Therefore, when the 5G technology and the LTE technology are involved in the DC, the number of interaction signaling between the MeNB/SeNB and the CN is significantly improved. Greatly increased communication overhead.
  • the embodiment of the invention discloses a communication method, a related device and a system, which can save communication overhead between the base station and the core network.
  • the embodiment of the present invention provides a communication method, where the method is applied to a dual connectivity scenario, in which the terminal maintains a communication connection with the first base station on the network side through the first radio resource link, and Maintaining a communication connection with the second base station on the network side through the second radio resource link, where the throughput of the first base station is higher than the first
  • the throughput of the second base station includes: the terminal acquiring the first signal quality and the first bandwidth, wherein the first signal quality characterizes the current received signal quality of the terminal in the cell of the first base station, The first bandwidth represents a current bandwidth of the first radio resource link; when the first signal quality is higher than a preset second signal quality, and the first bandwidth meets a requirement of a service carrying the terminal,
  • the terminal sends a link maintenance command to the network side, where the link maintenance command is used to instruct the second base station to configure the second radio resource link to be in a dormant state or a lightly connected state.
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a dormant state or The second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and the core network. s expenses.
  • the second signal quality is a real-time received signal quality of the terminal in a cell of the second base station, or a fixed value.
  • the terminal sends a link maintenance command, including: sending, by the terminal, the first base station The link maintenance command is configured to enable the first base station to send the link maintenance command to the second base station through an X2 interface; or the terminal sends the link maintenance command to the second base station.
  • the terminal sends a link After the command is maintained, the method further includes: acquiring, by the terminal, a third signal quality and a second bandwidth, where the third signal quality characterizes a current received signal quality of the terminal in a cell of the first base station, the second bandwidth Determining a current bandwidth of the first radio resource link; when the third signal quality is lower than a preset fourth signal quality, or the second bandwidth does not meet the requirement of a service carrying the terminal, the terminal is to the network
  • the side sends a service start command, where the service start command is used to instruct the second base station to configure the second radio resource link to be in an active state.
  • the The terminal requests the second base station to configure the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, so there is no interaction between the second base station and the core network due to the newly established radio resource link. Therefore, the overhead of the second base station and the core network is further saved.
  • the terminal and the second base station are not There is an air traffic channel and there is no context information for accessing the second base station.
  • a fifth possible implementation manner of the first aspect in the light connection state, between the terminal and the second base station There is no air traffic channel, but the terminal and the second base station respectively store context information for accessing the second base station.
  • the embodiment of the present invention provides a communication method, where the method is applied to a dual connectivity scenario, in which the terminal maintains a communication connection with the first base station through the first radio resource link, and passes the second The wireless resource link maintains a communication connection with the base station, wherein the throughput of the first base station is higher than the throughput of the base station, and the base station here may also be referred to as a second base station, the method comprising: receiving, by the base station, the terminal The generated link maintains the command; the base station configures the second radio resource link to be in a dormant state or a lightly connected state according to the indication of the link maintenance command.
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a dormant state or The second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and the core network. s expenses.
  • the base station receives the link maintenance command generated by the terminal, including:
  • the base station according to the indication of the link maintenance instruction, the second radio resource chain After the path is configured to be in the dormant state or the lightly connected state, the method further includes: the base station receiving the service start command; and the base station configuring the second radio resource link to be in an active state according to the indication of the service start command.
  • the The terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station") to configure the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, and therefore does not
  • the second base station and the core network exchange signaling are caused by the new radio resource link, which further saves the overhead of the second base station and the core network.
  • a third possible implementation manner of the second aspect in the dormant state, between the terminal and the second base station There is no air traffic channel and there is no context information for accessing the second base station.
  • the terminal and the second base station in the light connection state, the terminal and the second base station There is no air traffic channel between them, but the terminal and the second base station respectively store context information for accessing the second base station.
  • an embodiment of the present invention provides a terminal that maintains a communication connection with a first base station on a network side by using a first radio resource link, and a second side of the network side through a second radio resource link and a network.
  • the second base station maintains a communication connection, wherein the throughput of the first base station is higher than the throughput of the second base station
  • the terminal includes: a processor and a transmitter coupled to the processor, wherein: the processor is configured to: acquire a signal quality and a first bandwidth, wherein the first signal quality characterizes a current received signal quality of the terminal in a cell of the first base station, the first The bandwidth is used to represent the current bandwidth of the first radio resource link; the transmitter is configured to: when the first signal quality is higher than a preset second signal quality, and the first bandwidth meets a requirement for a service that carries the terminal
  • a link maintenance command is sent to the network side, where the link maintenance command is used to instruct the second base station to configure the second radio resource link to be in a dormant state or a lightly connected state.
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a dormant state or The second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and the core network. s expenses.
  • the second signal quality is a real-time received signal quality of the terminal in a cell of the second base station, or a fixed value.
  • the transmitter sends a link maintenance command, specifically: sending the first base station
  • the link maintenance command is configured to enable the first base station to send the link maintenance command to the second base station through an X2 interface; or send the link maintenance command to the second base station.
  • the transmitter sending chain After the path is maintained, the processor is further configured to: acquire a third signal quality and a second bandwidth, where the third signal quality characterizes a current received signal quality of the terminal in a cell of the first base station, The second bandwidth is used to represent the current bandwidth of the first radio resource link; the transmitter is further configured to: when the third signal quality is lower than a preset fourth signal quality, or the second bandwidth does not satisfy the bearer of the terminal
  • the service start command is sent to the network side, where the service start command is used to instruct the second base station to configure the second radio resource link to be in an active state.
  • the terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station") to configure the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, and therefore does not
  • the second base station and the core network exchange signaling are caused by the new radio resource link, which further saves the overhead of the second base station and the core network.
  • a fourth possible implementation manner of the third aspect in the dormant state, between the terminal and the second base station There is no air traffic channel and there is no context information for accessing the second base station.
  • the terminal and the second base station in the light connection state, the terminal and the second base station There is no air traffic channel between them, but the terminal and the second base station respectively store context information for accessing the second base station.
  • an embodiment of the present invention provides a base station, where the base station may also be referred to as a second base station, and the base station passes the The second radio resource link maintains a communication connection with the terminal, and the first base station maintains a communication connection with the terminal through the first radio resource link, where the throughput of the first base station is higher than the throughput of the base station, and the base station includes processing And a receiver, wherein: the receiver is configured to: receive a link maintenance instruction generated by the terminal; the processor is configured to: configure the second radio resource link to a sleep state according to the indication of the link maintenance instruction Or lightly connected.
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a dormant state or The second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and the core network. s expenses.
  • the receiver receives a link maintenance command generated by the terminal, specifically, receiving a link maintenance command sent by the first base station, where the A link maintenance command of a base station is sent by the terminal and sent to the first base station; or the link maintenance command generated and transmitted by the terminal is received.
  • the processor according to the indication of the link maintenance instruction, the second radio resource After the link is configured to be in a dormant state or a lightly connected state, the receiver is further configured to: receive a service start instruction; the processor is further configured to: configure the second radio resource link to be activated according to the indication of the service start command state.
  • the terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station") to configure the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, and therefore does not
  • the second base station and the core network exchange signaling are caused by the new radio resource link, which further saves the overhead of the second base station and the core network.
  • the terminal and the second base station in a third possible implementation manner of the fourth aspect, in the dormant state, between the terminal and the second base station There is no air traffic channel and there is no context information for accessing the second base station.
  • the terminal and the second base station in a fourth possible implementation manner of the fourth aspect, in the light connection state, the terminal and the second base station There is no air traffic channel between them, but the terminal and the second base station respectively store context information for accessing the second base station.
  • an embodiment of the present invention provides a terminal that maintains a communication connection with a first base station on a network side through a first radio resource link, and a second radio resource link and a second base station on a network side, respectively.
  • the terminal includes a first acquiring unit and a first sending unit, wherein the first acquiring unit is configured to acquire the first signal quality and the first a bandwidth, wherein the first signal quality characterizes a current received signal quality of the terminal in a cell of the first base station, and the first bandwidth characterizes a current bandwidth of the first radio resource link;
  • the first sending unit is configured to send a link maintenance command to the network side when the first signal quality is higher than the preset second signal quality, and the first bandwidth meets the requirement of the service that carries the terminal,
  • the link maintenance command is used to instruct the second base station to configure the second radio resource link to be in a dormant state or a lightly connected state.
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a dormant state or The second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and the core network. s expenses.
  • the second signal quality is a real-time received signal quality of the terminal in a cell of the second base station, or a fixed value.
  • the first sending unit sends a link maintenance command, specifically: A base station sends a link maintenance command to enable the first base station to send the link maintenance command to the second base station through an X2 interface; or send the link maintenance command to the second base station.
  • the terminal further includes And a second obtaining unit, configured to acquire a third signal quality and a second bandwidth after the first transmitting unit sends a link maintenance command, where the third signal quality represents the terminal a current received signal quality in a cell of the first base station, the second bandwidth characterizing a current bandwidth of the first radio resource link; and the second transmitting unit is configured to use the third signal quality lower than
  • the service start command is sent to the network side, where the service start command is used to instruct the second base station to use the second wireless resource chain.
  • the path is configured to be active.
  • the terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station") to configure the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, and therefore does not
  • the second base station and the core network exchange signaling are caused by the new radio resource link, which further saves the overhead of the second base station and the core network.
  • a fourth possible implementation manner of the fifth aspect in a fourth possible implementation manner of the fifth aspect, in the dormant state, between the terminal and the second base station There is no air traffic channel and there is no context information for accessing the second base station.
  • the terminal and the second base station in the light connection state, the terminal and the second base station There is no air traffic channel between them, but the terminal and the second base station respectively store context information for accessing the second base station.
  • the embodiment of the present invention provides a base station, where the base station is also referred to as a second base station, and the base station maintains a communication connection with the terminal through the second radio resource link, and the first base station passes the second radio resource chain.
  • the road maintains a communication connection with the terminal, wherein the throughput of the first base station is higher than the throughput of the base station, the base station includes a processor and receiving
  • the base station includes a first receiving unit and a first configuration unit, wherein the first receiving unit is configured to receive a link maintenance command generated by the terminal; the first configuration unit is configured to maintain an instruction according to the link And configuring the second radio resource link to be in a dormant state or a lightly connected state.
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a dormant state or The second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and the core network. s expenses.
  • the first receiving unit receives a link maintenance command that is generated by the terminal, specifically: receiving a link maintenance command sent by the first base station, where The link maintenance command of the first base station is generated by the terminal and sent to the first base station; or the link maintenance command generated and transmitted by the terminal is received.
  • the base station further includes a second receiving unit and a second configuration unit, where the The second receiving unit is configured to receive a service start command after the second configuration resource unit is configured to be in a dormant state or a lightly connected state according to the indication of the link maintenance instruction, where the second configuration unit is configured to:
  • the second radio resource link is configured to be in an active state according to the indication of the service initiation command.
  • the terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station") to configure the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, and therefore does not
  • the second base station and the core network exchange signaling are caused by the new radio resource link, which further saves the overhead of the second base station and the core network.
  • a third possible implementation manner of the sixth aspect in the dormant state, between the terminal and the second base station There is no air traffic channel and there is no context information for accessing the second base station.
  • the terminal and the second base station in the light connection state, the terminal and the second base station There is no air traffic channel between them, but the terminal and the second base station respectively store context information for accessing the second base station.
  • the embodiment of the present invention provides a communication method, which is applied to a dual connectivity scenario in which a terminal maintains a communication connection with a first base station through a first radio resource link and a second radio resource.
  • the link maintains a communication connection with the base station, wherein the throughput of the first base station is higher than the throughput of the base station, the method comprising: the base station acquiring the first signal quality and the first bandwidth, wherein the first signal quality representation The current received signal quality of the terminal in the cell of the first base station, the first bandwidth characterizing a current bandwidth of the first radio resource link; when the first signal quality is higher than a preset Two signal qualities, and the first bandwidth satisfies the requirements of the service carrying the terminal
  • the base station configures the second radio resource link to be in a dormant state or a lightly connected state.
  • the second base station (also referred to as "base station” for distinguishing from the "first base station") configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the first wireless
  • the resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a sleep state or a light connection state
  • the second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the overhead of the second base station and the core network.
  • the second signal quality is a received signal quality of the terminal in the cell of the base station that is detected by the base station in real time, or is a fixed value.
  • the base station configures the radio resource link of the terminal and the base station to be in a dormant state or After the light connection state, the method further includes: the base station acquiring a third signal quality and a second bandwidth of the terminal in the first base station, where the third signal quality characterizes that the terminal is currently in a cell of the first base station Received signal quality, the second bandwidth characterizing a current bandwidth of the first radio resource link; when the third signal quality is lower than a preset fourth signal quality, or the second bandwidth does not satisfy the bearer of the terminal The base station configures the second radio resource link to an active state when required by the service.
  • the The second base station (also referred to as "base station” for distinguishing from the "first base station") configures the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, so there is no cause
  • the new radio resource link is generated to cause the second base station to exchange signaling with the core network, which further saves the overhead of the second base station and the core network.
  • the air traffic channel does not exist between the terminal and the second base station, and there is no context information for accessing the second base station.
  • the seventh aspect or the first possible implementation manner of the seventh aspect, or the second possible implementation manner of the seventh aspect, in the fourth possible implementation manner of the seventh aspect, in the light connection In the state, there is no air traffic channel between the terminal and the second base station, but the terminal and the second base station respectively store context information for accessing the second base station.
  • an embodiment of the present invention provides a base station, where the base station maintains a communication connection with a terminal by using a second radio resource link, where the first base station maintains a communication connection with the terminal by using a first radio resource link, where the first base station The throughput is higher than the throughput of the base station, the base station comprising a processor, wherein: the processor is configured to: acquire a first signal quality and a first bandwidth, wherein the first signal quality characterizes that the terminal is in the a current received signal quality in a cell of the first base station, the first bandwidth characterizing a current bandwidth of the first radio resource link; the processor is further configured to: when the first signal quality is higher than a preset
  • the second radio resource link is configured to be in a dormant state or a lightly connected state when the first bandwidth meets the requirements of the service carrying the terminal.
  • the second base station (also referred to as "base station” for distinguishing from the "first base station")
  • the radio resource link is configured to be in a dormant state or a lightly connected state, so that the terminal can transmit control plane data and user plane data through the first radio resource link without passing through the second radio resource link transmission control.
  • the second signal quality is a received signal quality of the terminal in the cell of the base station that is detected by the base station in real time, or is a fixed value.
  • the processor configures the second radio resource link as a dormant state or a light connection Thereafter, the processor is further configured to: acquire a third signal quality and a second bandwidth, where the third signal quality characterizes a current received signal quality of the terminal in a cell of the first base station, the second bandwidth Characterizing the current bandwidth of the first radio resource link; the processor is further configured to: when the third signal quality is lower than a preset fourth signal quality, or the second bandwidth does not satisfy the service that carries the terminal
  • the second radio resource link is configured to be in an active state when required.
  • the second base station (also referred to as "base station” for distinguishing from the "first base station") configures the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, so there is no cause
  • the new radio resource link is generated to cause the second base station to exchange signaling with the core network, which further saves the overhead of the second base station and the core network.
  • the air traffic channel does not exist between the terminal and the second base station, and there is no context information for accessing the second base station.
  • the embodiment of the present invention provides a base station, which is applied to a dual connectivity scenario, in which the terminal maintains a communication connection with the base station through the second radio resource link, and through the first radio resource link.
  • the first base station maintains a communication connection, wherein the throughput of the first base station is higher than the throughput of the base station
  • the base station includes an acquisition unit and a configuration unit, wherein the acquisition unit is configured to acquire the first signal quality and the first bandwidth, where Determining, by the first signal quality, a current received signal quality of the terminal in a cell of the first base station, where the first bandwidth represents a current bandwidth of the first radio resource link;
  • the second radio resource link is configured to be in a dormant state or a lightly connected state.
  • the first signal quality of the terminal in the dual connectivity DC scenario in the cell of the first base station is good enough, and the first bandwidth of the first radio resource link satisfies the requirement of the service carrying the terminal, then
  • the first The second base station also referred to as “the base station” is distinguished from the “first base station", and the second radio resource link is configured to be in a dormant state or a lightly connected state, so that the terminal can pass the first radio resource.
  • the link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a sleep state or a light connection state
  • the second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the overhead of the second base station and the core network.
  • the second signal quality is a signal quality of the terminal in the cell of the base station that is detected by the base station in real time, or is a fixed value.
  • the configuration unit configures the second radio resource link to be in a dormant state or a light connection
  • the acquiring unit is further configured to acquire a third signal quality and a second bandwidth, where the third signal quality characterizes a current received signal quality of the terminal in a cell of the first base station, and the second bandwidth Characterizing the current bandwidth of the first radio resource link;
  • the configuration unit is further configured to: when the third signal quality is lower than a preset fourth signal quality, or the second bandwidth does not meet the requirement of the service that carries the terminal
  • the second radio resource link is configured to be in an active state.
  • the second base station (also referred to as "base station” for distinguishing from the "first base station") configures the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, so there is no cause
  • the new radio resource link is generated to cause the second base station to exchange signaling with the core network, which further saves the overhead of the second base station and the core network.
  • the third possible implementation manner of the ninth aspect in the dormant state
  • the air traffic channel does not exist between the terminal and the second base station, and there is no context information for accessing the second base station.
  • the ninth aspect, or the first possible implementation manner of the ninth aspect, or the second possible implementation manner of the ninth aspect, in the fourth possible implementation manner of the ninth aspect in the light connection In the state, there is no air traffic channel between the terminal and the second base station, but the terminal and the second base station respectively store context information for accessing the second base station.
  • an embodiment of the present invention provides a communication system, where the communication system includes a terminal and a base station, where the terminal is the third aspect, or any possible implementation manner of the third aspect, or the fifth aspect, or the fifth The terminal described in any of the possible implementations of the aspect; the base station is the fourth aspect, or any possible implementation manner of the fourth aspect, or the sixth aspect, or any possible implementation of the sixth aspect The base station described in the manner.
  • an embodiment of the present invention further provides a computer storage medium, which may be non-volatile, that is, the content is not lost after power off.
  • the storage medium stores a software program that, when read and executed by one or more processors, implements the method provided by the first aspect or any one of the foregoing first aspects.
  • the embodiment of the present invention further provides a computer storage medium, which may be non-volatile, that is, the content is not lost after power off.
  • the storage medium stores a software program that, when read and executed by one or more processors, implements the method provided by the second aspect or any one of the foregoing second aspects.
  • the embodiment of the present invention further provides another computer storage medium, which may be a nonvolatile sexual, that is, the content is not lost after power off.
  • the storage medium stores a software program that, when read and executed by one or more processors, implements the method of any one of the seventh aspect or the seventh aspect described above.
  • the first signal quality of the terminal in the dual-connected DC scenario in the cell of the first base station is sufficiently good, and the first bandwidth of the first radio resource link satisfies the requirement of the service carrying the terminal.
  • the terminal requests the second base station (also referred to as "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can Transmitting control plane data and user plane data through the first radio resource link without transmitting control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to sleep The state or the light connection state does not cancel the second radio resource link, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and The cost of the core network.
  • the terminal Requesting a second base station also referred to as "base station” for distinguishing from “first base station” to configure the second radio resource link to an active state
  • this process does not need to re-establish a new radio resource link, and therefore does not exist
  • the second base station interacts with the core network to generate signaling due to the new radio resource link, which further saves the overhead of the second base station and the core network.
  • FIG. 1 is a schematic diagram of a scenario of a communication system in the prior art
  • FIG. 2 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a scenario of a communication system according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a communication method according to an embodiment of the present invention.
  • FIG. 5A is a schematic diagram of interaction of a communication method according to an embodiment of the present invention.
  • FIG. 5B is a schematic diagram of interaction of another communication method according to an embodiment of the present invention.
  • FIG. 6A is a schematic flowchart of still another communication method according to an embodiment of the present invention.
  • 6B is a schematic flowchart diagram of still another communication method according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of still another terminal according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the terminal in the embodiment of the present invention may be a user equipment UE, for example, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a mobile internet device (English: mobile internet device, abbreviated as: MID), and a wearable device (such as a smart watch (such as iWatch, etc.), smart bracelets, pedometers, etc., can also be used in other cellular mobile networks.
  • a user equipment UE for example, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a mobile internet device (English: mobile internet device, abbreviated as: MID), and a wearable device (such as a smart watch (such as iWatch, etc.), smart bracelets, pedometers, etc., can also be used in other cellular mobile networks.
  • a user equipment UE for example, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a mobile internet device (English: mobile internet device, abbre
  • the user equipment in the embodiment of the present invention may be connected to the network based on the dual connectivity DC technology, the dual connectivity technology involves the MCG and the SCG, and the base station providing the MCG is referred to as the second base station on the network side, and the base station providing the SCG is called
  • the first base station on the network side, the MCG and the SCG in the embodiment of the present invention adopt different wireless communication technologies (may also be described as different wireless communication technologies used by the first base station and the second base station), and the communication technology adopted by the SCG
  • the throughput is higher than the throughput of the communication technology adopted by the MCG (may also be described as the throughput of the first base station is higher than the throughput of the second base station), for example, 5G, fourth generation mobile communication technology (English: the 4th Generation mobile communication, referred to as: 4G), LTE, third-generation mobile communication technology (English: 3rd-Generation, referred to as: 3G), second-generation mobile communication technology specifications (English: 2-Generation wireless telephone technology, referred
  • FIG. 2 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • the communication system includes a core network CN, a UE, an LTE-based base station eNB, and a 5G-based base station gNB, where the core network CN can
  • the 5G next-generation core network (English: Next Gen Core) can also be a 4G core network (English: Evolved Packet Core, EPC for short).
  • the UE uses Tight Interworking based on dual-connected DC technology to access the network.
  • the eNB provides the MCG for the UE, that is, the eNB here assumes the task of the MeNB in the background art
  • the gNB provides the SCG for the UE, that is, the gNB here assumes the task of the SeNB in the background art
  • the UE has a radio resource link (ie, a radio resource link between the UE and the second base station) in the MCG
  • the UE has a radio resource link in the SCG (that is, a radio resource between the UE and the first base station) Link)
  • there is a radio resource link between the eNB and the gNB a radio resource link exists between the eNB and the CN, and a radio resource link exists between the gNB and the CN, and the radio resource link may be referred to as a "link" for short.
  • . 3 is a schematic diagram of a corresponding scenario.
  • the largest ellipse in FIG. 3 indicates the range of the MCG, and the second largest ellipse indicates the range of the SCG.
  • the smallest ellipse indicates that the signal quality of the UE in the MCG is stronger than that in the SCG.
  • the connection between any two nodes indicates the link between the two nodes.
  • control plane English: control plane, CP for short
  • user plane English: user plane, abbreviation: UP
  • Control the embodiment of the present invention will focus on how to control the UE's link in the MCG (corresponding to the dotted line connecting the UE and the eNB in FIG. 3) to transmit data.
  • the implementation of the communication system 20 may refer to the specific execution process in the embodiment shown in FIG.
  • the implementation of the communication system 20 may refer to the specific execution flow in the embodiment shown in FIG. 6A.
  • FIG. 4 is a schematic flowchart diagram of a communication method according to an embodiment of the present invention, where the method includes but is not limited to the following steps.
  • Step S401 The terminal acquires the first signal quality and the first bandwidth.
  • the first signal quality characterizes the received signal quality of the terminal currently in the cell of the first base station, and the first bandwidth represents the current bandwidth of the first radio resource link.
  • the UE can detect the received signal quality of the cell in which the UE resides in real time, so the UE can obtain the received signal quality in the SCG. Since the SCG is provided by the first base station, it can also be described as acquiring the UE at the first.
  • the signal quality in the base station, the currently acquired signal quality may be referred to as the first signal quality.
  • the UE measures the signal strength of the cell in which the UE resides. It is not described here. It can be understood that the signal quality can be received by the reference signal (English: Reference Signal Receiving Power, RSRP for short). ), reference signal reception quality (English: ReferenceSignalReceivingQuality (referred to as: RSRQ), received signal strength indication (English: Received Signal Strength Indication, referred to as: RSSI) and other parameters to measure.
  • the reference signal English: Reference Signal Receiv
  • the radio resource link between the UE and the first base station may be referred to as a first radio resource link
  • the first radio resource link may refer to an uplink between the UE and the first base station from the perspective of uplink and downlink.
  • the RRC link may also be a downlink radio resource link between the UE and the first base station, and may also be a downlink radio resource link and an uplink radio resource link between the UE and the first base station;
  • the first radio resource link may refer to a radio resource control link between the UE and the first base station, and may also refer to a radio resource data link between the UE and the first base station.
  • the path may also refer to a radio resource control link and a radio resource data link between the UE and the first base station.
  • the radio resource link between the UE and the second base station may be referred to as a second radio resource link, and the second radio resource link may refer to an uplink radio resource between the UE and the second base station from the perspective of uplink and downlink.
  • the link may also be a downlink radio resource link between the UE and the second base station, and may also be a downlink radio resource link and an uplink radio resource link between the UE and the second base station;
  • the radio resource link may refer to a radio resource control link between the UE and the second base station, and may also refer to a radio resource data link between the UE and the second base station. It may also refer to a radio resource control link and a radio resource data link between the UE and the second base station.
  • the bandwidth of the link of the UE in the cell is a certain value, and the UE can directly obtain the value.
  • the bandwidth sent by the cell can be used to obtain the bandwidth of the link.
  • the bandwidth of the link may also be detected by itself, and the bandwidth of the currently acquired link may be referred to as a first bandwidth.
  • step S402 may be performed, otherwise, the radio resource between the terminal and the second base station is reserved.
  • the current state of the link ie, the service state
  • the second signal quality herein may be the received signal quality of the terminal currently in the second base station (which may also be described as the received signal quality of the terminal in the SCG in real time), or according to history.
  • a value that characterizes the signal quality in the record summarizes a fixed value that is used for reference.
  • the service requirements here may include data transmission requirements.
  • the UE needs to download a high-definition video with a very large amount of data.
  • the UE needs to receive more data in a unit time to ensure that the HD video is downloaded as soon as possible;
  • the relatively large bandwidth of the UE receiving data facilitates the UE to receive the HD video in a shorter time, and the UE can determine the required bandwidth according to the size of the data that it is currently transmitting. If the first bandwidth is greater than or equal to the bandwidth required by the UE to transmit data, it indicates that the first bandwidth meets the requirement of the service that carries the terminal.
  • the SCG can provide 10 megabits (M) for the UE and the UE actually needs 15 megabits (M), the SCG cannot meet the requirements of the service carrying the UE, if the SCG can The bandwidth provided for the UE is 10 megabits (M), and the bandwidth actually required by the UE is 5 megabits (M), so the SCG can meet the requirements of the service carrying the UE.
  • the sequence of operations for obtaining the first signal quality and the operation for acquiring the first bandwidth are not limited herein.
  • the throughput of the SCG in which the UE is located is higher than the throughput of the MCG in which the UE is located.
  • the SCG adopts 5G technology
  • the MCG adopts LTE technology, so that the throughput of the SCG is higher than the throughput of the MCG.
  • Step S402 The UE sends a link maintenance command.
  • the link maintenance command is used to trigger the second base station (also referred to as “base station” to distinguish from the “first base station”), and configure the link of the UE in the MCG to be in a dormant state or a lightly connected state.
  • the first The second base station can configure the link of the UE in the MCG to a different state according to the requirements of the UE, and the state of the link can be a dormant state (English: dormant state), a light connection state, a light RRC connection, an active state.
  • the active state refers to a state in which the link is transmitting traffic; in the dormant state, there is no air traffic channel between the terminal and the second base station, and there is no connection for Context information of the second base station; there is no air traffic channel between the terminal and the second base station, but the terminal and the second base station respectively store context information for accessing the second base station.
  • the connected state of the UE may be connected, and the Connected state is divided into two seed states, one is a Scheduled state, some is also called an active state, or a synchronous state, and the other is Non-Scheduled. State, some are also called deactivated state, or lost gait state; that is to say, there are other names in the activated state described in the embodiments of the present invention, but the essence of the embodiment is indeed the same.
  • the UE When the UE is in the attached state (non-idle state), its context may include, for example, mobile phone network capability, Tracking Area Identity (TAI), S1APID, base station number (eNodeBID), and authentication.
  • TAI Tracking Area Identity
  • S1APID Serving Uplink PackeNodeBID
  • eNodeBID base station number
  • connection information such as Access Point Name (APN), Public Data Network (PDN) Gateway (PDN GateWay, PGW), QoS parameters) (QoS Class Identifier (QCI)), bearer information (Evolved Packet System Bearer Identifier (EBI), QCI, Aggregated Maximum Bit Rate (AMBR), traffic flow template (Traffic Flow Template) , TFT), control plane and user plane address, etc.) and so on.
  • API Access Point Name
  • PDN Public Data Network
  • PGW Packet System Bearer Identifier
  • EBI Evolved Packet System Bearer Identifier
  • QCI Aggregated Maximum Bit Rate
  • AMBR Aggregated Maximum Bit Rate
  • TFT Traffic Flow Template
  • control plane and user plane address etc.
  • the UE when the UE performs the Tracking Area Update (TAU), the Service Request ServiceRequest, and the Detach Detach, it cannot be processed because the second The base station cannot find the context of the UE, and it is not clear about the protocol (IP Internet Protocol, IP) between its networks, the PGW it connects to, the carriers it creates, and the messages it can send cannot be decrypted.
  • IP Internet Protocol
  • the term "context establishment” often occurs, which refers to the establishment of a context session, mainly refers to establishing a connection between functional entities for information transmission.
  • the RRC is established between the two functional entities of the UE and the second base station, and its communication link is the context.
  • the context mainly refers to the Packet Data Protocol (PDP) context, which refers to the PDP activation gateway.
  • PDP Packet Data Protocol
  • GPRS General Packet Radio Service
  • the context in LTE mainly refers to the EPS bearer context, which is a process of establishing a connection link between the UE and the PGW.
  • the establishment of a context session consists of four parts: air interface encryption (for example, between UE and eNodeB), terminal capability query, signaling bearer (SRB2), and data bearer (DRB).
  • the session process is a process of establishing a bearer, including a signaling bearer (SRB2), and data. Bearer (DRB); after the signaling bearer is completed, signaling interaction can be performed. After the data bearer is completed, the data packet can be sent/received.
  • SRB2 signaling bearer
  • DRB2 data. Bearer
  • the target state for example, the sleep state, the light connection state, and the like
  • the target state is an IDLE state (also referred to as an "idle state") and a CONNECTED state (also referred to as a "connected state”).
  • IDLE state also referred to as an "idle state”
  • CONNECTED state also referred to as a "connected state”
  • IDLE state If there is no Non-Access Stratum (NAS) signaling connection between the UE and the network, the UE is in the IDLE state. In the IDLE state, the UE may perform cell selection/reselection or perform PLMN selection. The UE in the IDLE state has no UE context in the access network (Radio Access Network, RAN). In this case, there is neither the S1 control plane interface S1_MME connection nor the S1 user plane interface S1_U connection. The S1_MME connection refers to the evolved base station.
  • NAS Non-Access Stratum
  • eNB evolved NodeB
  • S1_U connection refers to an interface connection between the eNB and a Serving GateWay (S-GW).
  • S-GW Serving GateWay
  • the UE location information in the MME can be accurate to the extent of the eNB identity of the service. In this state, the UE can perform a handover procedure. If the TAI in the EMM system is not in the Timing Advance (TA) list when the UE is registered, the UE performs the TAU procedure, or if the TIN indication of the UE (the TIN is a parameter saved by the UE, it identifies itself under When the temporary identifier (temporary ID) used when transmitting the Attach Request/RAU/TAU Request is "P-TMSI", the TAU procedure is also executed when the RAN cell is switched.
  • TA Timing Advance
  • the signaling connection consists of two parts: an RRC connection and an S1_MME connection. If the signaling connection between the UE and the MME is released or interrupted, the UE enters the IDLE state.
  • the UE (and possibly the base station) may be configured such that the link of the UE in the MCG is switched to an active state, and when the link in the MCG is in an active state, the link can normally transmit various Control surface data and user plane data.
  • the UE sends an instruction to the second base station to trigger the second base station to configure the link of the UE in the MCG to be in a dormant state or a lightly connected state, and the UE sends another type to the second base station.
  • the command may trigger the base station to configure the link of the UE in the MCG to be in an active state.
  • the instruction to configure the link of the UE in the MCG to be in a dormant state or a lightly connected state is maintained for the link.
  • the instruction; the instruction indicating that the link of the UE in the MCG is configured to be in an active state is a service start instruction.
  • the link of the UE in the MCG is not in a sleep state or a light connection state, and the link enters the sleep state after the base station configures according to the link maintenance command.
  • the light connection state when the UE sends the service start command, the link of the UE in the MCG is not in an active state, and the link enters the active state after the base station configures according to the service start command.
  • Step S403 The base station receives the link maintenance command.
  • the base station is a base station that provides the MCG, that is, the second base station, and the base station receives the link maintenance command to include at least two possibilities.
  • the possibility is that after the UE sends the link maintenance command, the first base station receives the The link maintains the command, and then the first base station forwards the link maintenance command to the base station, and accordingly, the base station receives the link maintenance command sent by the first base station; and secondly, the base station receives the chain sent by the UE The road maintains instructions.
  • Step S404 The base station configures the link of the UE in the MCG as a target state according to the link maintenance command.
  • the target state may be a state of a dormant state or a light connection state
  • the base station links the UE in the MCG.
  • the configuration of the path to the target state may be implemented by the base station unilaterally setting some parameters, or may be implemented by the base station to negotiate with the UE; when the base station confirms that the link of the UE in the MCG is configured as the target state, A response response may be sent to the UE to inform that the link configuration of the UE in the MCG is in a target state. Of course, the response response may not be sent to the UE.
  • the UE's transmit power and received power on the link can be saved.
  • steps S405 to S408 may be performed after steps S401 to S404.
  • the description of S405 to S408 is as follows.
  • Step S405 The terminal acquires a third signal quality and a second bandwidth.
  • the third signal quality characterizes a received signal quality of the terminal currently in a cell of the first base station, and the second bandwidth represents a current bandwidth of the first radio resource link
  • the terminal The manner of obtaining the third signal quality is the same as the method of obtaining the first signal quality, except that the acquisition timings of the two signal qualities are different, and the third signal quality is obtained when the link between the UE and the second base station is in the target state.
  • the manner in which the terminal acquires the second bandwidth is the same as the manner in which the first bandwidth is obtained, except that the acquisition timing of the two bandwidths is different, and the second bandwidth is the bandwidth acquired when the link between the UE and the second base station is in the target state. .
  • the embodiment of the present invention further determines whether the third signal quality is smaller than the fourth signal quality, and determines whether the second bandwidth meets the requirement of the service of the bearer terminal.
  • the fourth signal quality herein may be a real-time signal quality of the terminal in the second base station (which may also be described as a real-time signal quality of the terminal in the SCG), or a preset signal.
  • the quality threshold where the fourth signal quality and the previous second signal quality are both preset signal quality thresholds, the second signal quality and the fourth signal quality may or may not be equal.
  • step S406 may be performed.
  • Case 1 the UE determines that the third signal quality of the UE in the secondary cell group SCG is smaller than the fourth signal quality
  • the second case the UE determines the SCG. The requirements for carrying the current service of the UE are not satisfied, and in the third case, both situation 1 and case 2 are established.
  • Step S406 The UE sends a service start command, where the service start command is used to trigger the second base station to configure the link of the UE in the MCG as an active state.
  • Step S407 The base station receives the service start instruction.
  • the base station receives the service start command and includes at least two possibilities.
  • the first possibility is that after the UE sends the service start command, the first base station receives the service start command.
  • a base station forwards the service start command to the base station (ie, the second base station), and correspondingly, the base station receives the service start command sent by the first base station; and secondly, the base station receives the service start command sent by the UE.
  • Step S408 The base station configures the link of the UE in the MCG as an active state according to the service start command.
  • the base station configuring the link of the UE in the MCG to be in an active state may be implemented by unilaterally setting some parameters of the base station, or may be implemented by the base station negotiating with the UE; when the base station confirms that the After the link in the MCG is configured to be in the active state, the UE may send a response response to the UE to inform that the link of the UE in the MCG is configured to be in an active state. Of course, the response may not be sent to the UE.
  • FIG. 5A is an interaction diagram of the above possibility one
  • FIG. 5B is an interaction diagram of the above possibility 2.
  • the terminal requests the second base station (also referred to as "base station” to distinguish it from the "first base station"), and configures the second wireless resource link to be in a dormant state or a lightly connected state, so that the terminal Control plane data and user plane data may be transmitted through the first radio resource link without transmitting control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link
  • the second radio resource link is not logged off for the dormant state or the light connection state, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second.
  • the terminal in the dual connectivity DC scenario is at the first If the third signal quality in the cell of the base station is not good enough, or the first radio resource link does not meet the requirement of the service that carries the terminal, the terminal requests the second base station (also referred to as "base station" for the first base station). Configuring the second radio resource link to be in an active state, the process does not need to re-establish a new radio resource link, and therefore there is no interaction between the second base station and the core network due to the newly established radio resource link. Further saving the overhead of the second base station and the core network.
  • FIG. 6A is a schematic flowchart diagram of a communication method according to an embodiment of the present invention, where the method includes but is not limited to the following steps.
  • Step S601 The base station acquires the first signal quality and the first bandwidth.
  • the first signal quality characterizes a received signal quality of the terminal currently in a cell of the first base station, and the first bandwidth represents a current bandwidth of the first radio resource link.
  • the base station (the “base station” is abbreviated as “second base station” for the purpose of distinguishing from the first base station) to detect the received signal quality of the cell in which the terminal is camped in the terminal, so that the base station can acquire
  • the received signal quality of the UE in the SCG as the SCG is provided by the first base station, can also be described as acquiring the signal quality of the UE in the first base station, and the currently acquired received signal quality may be referred to as the first signal quality. .
  • the base station side detects the signal strength of the UE in the camped cell as the prior art, and details are not described herein.
  • the parameter of the signal quality can receive power through the reference signal (English: Reference Signal Receiving Power) , referred to as: RSRP), reference signal reception quality (English: ReferenceSignalReceivingQuality, referred to as: RSRQ), received signal strength indication (English: Received Signal Strength Indication, referred to as: RSSI) and other parameters to measure.
  • RSRP Reference Signal Receiving Power
  • RSRQ ReferenceSignalReceivingQuality
  • RSSI Received Signal Strength Indication
  • the radio resource link between the UE and the first base station may be referred to as a first radio resource link
  • the first radio resource link may refer to an uplink between the UE and the first base station from the perspective of uplink and downlink.
  • the RRC link may also be a downlink radio resource link between the UE and the first base station, and may also be a downlink radio resource link and an uplink radio resource link between the UE and the first base station;
  • the first radio resource link may refer to a radio resource control link between the UE and the first base station, and may also refer to a radio resource data link between the UE and the first base station.
  • the path may also refer to a radio resource control link and a radio resource data link between the UE and the first base station.
  • the radio resource link between the UE and the second base station may be referred to as a second radio resource link, and the second radio resource link may refer to an uplink radio resource between the UE and the second base station from the perspective of uplink and downlink.
  • the link may also be a downlink radio resource link between the UE and the second base station, and may also be a downlink radio resource link and an uplink radio resource link between the UE and the second base station;
  • the radio resource link may refer to a radio resource control link between the UE and the second base station, and may also refer to a radio resource data link between the UE and the second base station. It may also refer to a radio resource control link and a radio resource data link between the UE and the second base station.
  • the bandwidth of the link of the UE in the cell is a certain value, and the bandwidth may be determined when the link is established, and the other device on the base station or the network side may be stored.
  • the bandwidth information when the base station does not store the bandwidth information of the link, can obtain the bandwidth information of the link by performing data interaction with the other device.
  • the bandwidth of the link between the UE and the first base station (ie, the first radio resource link) acquired by the base station may be referred to as a first bandwidth.
  • step S602 may be performed, otherwise, the radio resource between the terminal and the second base station is reserved.
  • Link ie second Line resource link
  • the current state ie, traffic state
  • the second signal quality herein may be the real-time signal quality of the terminal in the base station (which may also be described as the real-time signal quality of the terminal in the SCG), or according to the signal quality in the history record. The value summarizes a fixed value that is used as a reference.
  • the service requirements here may include data transmission requirements.
  • the UE needs to download a high-definition video with a very large amount of data.
  • the UE needs to receive more data in a unit time to ensure that the HD video is downloaded as soon as possible;
  • the relatively large bandwidth of the UE receiving data facilitates the UE to receive the high-definition video in a shorter time.
  • the UE can determine the required bandwidth according to the size of the data that it is currently transmitting, and then the terminal will itself
  • the required bandwidth information is sent to the base station, and the base station can determine the bandwidth required by the UE to currently transmit data based on the bandwidth information.
  • the first bandwidth is greater than or equal to the bandwidth required by the UE to transmit data, it indicates that the first bandwidth meets the requirement of the service that carries the terminal. For example, if the SCG can provide 10 megabits (M) for the UE and the UE actually needs 15 megabits (M), the SCG cannot meet the requirements of the service carrying the UE, if the SCG can The bandwidth provided for the UE is 10 megabits (M), and the bandwidth actually required by the UE is 5 megabits (M), so the SCG can meet the requirements of the service carrying the UE.
  • the sequence of operations for obtaining the first signal quality and the operation for acquiring the first bandwidth are not limited herein.
  • the throughput of the SCG in which the UE is located is higher than the throughput of the MCG in which the UE is located.
  • the SCG adopts 5G technology
  • the MCG adopts LTE technology, so that the throughput of the SCG is higher than the throughput of the MCG.
  • Step S602 The base station configures the second radio resource link as a target state.
  • the second base station may configure the link of the UE in the MCG to be in a different state according to the requirement of the UE, and the state of the link may be a dormant state (English: dormant state), a light connection state.
  • the connected state of the UE may be connected, and the Connected state is divided into two seed states, one is a Scheduled state, some is also called an active state, or a synchronous state, and the other is Non-Scheduled. State, some are also called deactivated state, or lost gait state; that is to say, there are other names in the activated state described in the embodiments of the present invention, but the essence of the embodiment is indeed the same.
  • the UE When the UE is in the attached state (non-idle state), its context may include, for example, mobile phone network capability, Tracking Area Identity (TAI), S1APID, base station number (eNodeBID), and authentication.
  • TAI Tracking Area Identity
  • S1APID Serving Uplink PackeNodeBID
  • eNodeBID base station number
  • connection information such as Access Point Name (APN), Public Data Network (PDN) Gateway (PDN GateWay, PGW), QoS parameters) (QoS Class Identifier (QCI)), bearer information (Evolved Packet System Bearer Identifier (EBI), QCI, Aggregated Maximum Bit Rate (AMBR), traffic flow template (Traffic Flow Template) , TFT), control plane and user plane address, etc.) and so on.
  • APN Access Point Name
  • PDN Public Data Network
  • PGW Packet System Bearer Identifier
  • EBI Evolved Packet System Bearer Identifier
  • QCI Aggregated Maximum Bit Rate
  • AMBR Aggregated Maximum Bit Rate
  • TFT Traffic Flow Template
  • control plane and user plane address etc.
  • the second base station cannot find the context of the UE, it is not clear about the protocol (IP Internet Protocol, IP) connected to it, the PGW to which it is connected, It creates those bearers, and it is possible that the messages it sends cannot be decrypted.
  • IP IP Internet Protocol
  • the term "context establishment” often occurs, which refers to the establishment of a context session, mainly refers to establishing a connection between functional entities for information transmission.
  • the RRC is established between the two functional entities of the UE and the second base station, and its communication link is the context.
  • the context mainly refers to the Packet Data Protocol (PDP) context, which refers to the PDP activation gateway.
  • PDP Packet Data Protocol
  • GPRS General Packet Radio Service
  • the context in LTE mainly refers to the EPS bearer context, which is a process of establishing a connection link between the UE and the PGW.
  • the establishment of a context session consists of four parts: air interface encryption (for example, between UE and eNodeB), terminal capability query, signaling bearer (SRB2), and data bearer (DRB).
  • the session process is a process of establishing a bearer, including a signaling bearer (SRB2), and data. Bearer (DRB); after the signaling bearer is completed, signaling interaction can be performed. After the data bearer is completed, the data packet can be sent/received.
  • SRB2 signaling bearer
  • DRB2 data. Bearer
  • the target state for example, the sleep state, the light connection state, and the like
  • the target state is an IDLE state (also referred to as an "idle state") and a CONNECTED state (also referred to as a "connected state”).
  • IDLE state also referred to as an "idle state”
  • CONNECTED state also referred to as a "connected state”
  • IDLE state If there is no Non-Access Stratum (NAS) signaling connection between the UE and the network, the UE is in the IDLE state. In the IDLE state, the UE may perform cell selection/reselection or perform PLMN selection. The UE in the IDLE state has no UE context in the access network (Radio Access Network, RAN). In this case, there is neither the S1 control plane interface S1_MME connection nor the S1 user plane interface S1_U connection. The S1_MME connection refers to the evolved base station.
  • NAS Non-Access Stratum
  • eNB evolved NodeB
  • S1_U connection refers to an interface connection between the eNB and a Serving GateWay (S-GW).
  • S-GW Serving GateWay
  • the UE location information in the MME can be accurate to the extent of the eNB identity of the service. In this state, the UE can perform a handover procedure. If the TAI in the EMM system is not in the Timing Advance (TA) list when the UE is registered, the UE performs the TAU procedure, or if the TIN indication of the UE (the TIN is a parameter saved by the UE, it identifies itself under When the temporary identifier (temporary ID) used when transmitting the Attach Request/RAU/TAU Request is "P-TMSI", the TAU procedure is also executed when the RAN cell is switched.
  • TA Timing Advance
  • the signaling connection consists of two parts: an RRC connection and an S1_MME connection. If the signaling connection between the UE and the MME is released or interrupted, the UE enters the IDLE state.
  • the base station can configure the UE (and possibly the base station) so that the UE in the MCG switches to the active state, the UE
  • the link in the MCG is in an active state, the link can normally transmit various control plane data and user plane data.
  • the base station configuring the link of the UE in the MCG as the target state may be implemented by unilaterally setting some parameters of the base station, or may be implemented by the base station negotiating with the UE; when the base station confirms that the UE is successfully in the MCG Medium
  • a response response can be sent to the UE to inform that the link configuration of the UE in the MCG is in the target state.
  • the response response may not be sent to the UE.
  • the UE's transmit power and received power on the link can be saved.
  • steps S603-S604 may be performed after steps S601-S602, and steps S603-S604 are described as follows.
  • Step S603 The base station acquires a third signal quality and a second bandwidth.
  • the third signal quality characterizes the received signal quality of the terminal currently in the cell of the first base station, and the second bandwidth characterizes the current bandwidth of the first radio resource link
  • the manner in which the base station (ie, the "second base station") acquires the third signal quality is the same as the manner in which the first signal quality is obtained, except that the acquisition timings of the two signal qualities are different, and the third signal quality is in the UE and the second.
  • the manner in which the base station acquires the second bandwidth is the same as the manner in which the first bandwidth is obtained, except that the acquisition timing of the two bandwidths is different, and the second bandwidth is a link between the UE and the second base station (ie, the second radio resource chain). Road)
  • the acquiring manner of the third signal quality and the second bandwidth may refer to acquiring the third signal quality and the second bandwidth in the embodiment shown in FIG. 4, where the UE acquires the third signal quality and the second After the bandwidth, the information of the third signal quality and the information of the second bandwidth are sent to the base station.
  • the embodiment of the present invention further determines whether the third signal quality is less than the fourth signal quality, and determines whether the second bandwidth meets the requirement of the service of the bearer terminal.
  • the fourth signal quality herein may be a real-time signal quality of the terminal in the second base station (which may also be described as a real-time signal quality of the terminal in the SCG), or a preset signal quality threshold. Where the fourth signal quality and the previous second signal quality are both preset signal quality thresholds, the second signal quality may or may not be equal to the fourth signal quality.
  • step S406 may be performed.
  • Case 1 the base station determines that the third signal quality of the UE in the secondary cell group SCG is smaller than the fourth signal quality
  • the second base the base station determines the SCG. The requirements for carrying the current service of the UE are not satisfied, and in the third case, both situation 1 and case 2 are established.
  • Step S604 The base station configures the second radio resource link to an active state.
  • the base station configuring the second radio resource link (that is, the link of the UE in the MCG) to be in an active state may be implemented by unilaterally setting some parameters for the base station, or may negotiate for the base station to negotiate with the UE.
  • the response may be sent to the UE to notify that the link of the UE in the MCG is configured to be in an active state, of course, The response response may not be sent to the UE.
  • FIG. 6B is a more detailed flow diagram of the embodiment shown in FIG. 6A.
  • FIG. 6B includes a terminal UE, a second base station (referred to as “base station”) eNB, a first base station gNB, and a user plane function (User plane function, The UPF) unit, when in the dual connectivity scenario, the part of the data sent by the UPF to the UE goes to the MCG, and the other part goes to the SCG, and the data of the MCG goes through the eNB, and the data can be called Data-MCG, and the data of the SCG is taken. To pass the gNB, this part of the data can be called Data-SCG.
  • the Data-MCG is transmitted from the UPF to the eNB, and then transmitted from the eNB to the UE;
  • the Data-SCG is transmitted from the UPF to the gNB, and then transmitted from the gNB to the UE; thereafter, the eNB determines according to the first signal quality and the first bandwidth.
  • the eNB configures the link between the UE and the eNB as a target state, and the configuration process may involve interaction between the eNB and the UE; Then, the eNB interacts with the gNB to inform the UE that the link configuration with the eNB is the target state, the subsequent Data-MCG is transmitted from the UPF to the eNB, and the eNB sends the Data-MCG to the gNB, since the Data-SCG still receives from the UPF. Transfer to gNB, so Data-MCG and Data-SCG will eventually be sent from the gNB to the UE.
  • the eNB configures the link between the UE and the eNB as an active state.
  • the process may involve interaction between the eNB and the UE; then, the eNB interacts with the gNB to inform the UE that the link between the eNB and the eNB is configured to be active, and subsequently, the Data-MCG is transmitted from the UPF to the eNB, and then remains The data is transmitted from the eNB to the UE; the Data-SCG is transmitted from the UPF to the gNB, and then transmitted from the gNB to the UE.
  • process shown in FIG. 6B is only an optional refinement manner of the process shown in FIG. 6A.
  • description of the data flow direction in the process shown in FIG. 6B can also be applied to the processes shown in FIG. 5A and FIG. 5B.
  • the foregoing embodiments are not described by way of example.
  • the second base station (also referred to as "base station” for distinguishing it from the "first base station") configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to be in a dormant state Or the light connection state does not cancel the second radio resource link, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and the core.
  • the second base station (also referred to as "base station” for distinguishing from the "first base station") configures the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, so there is no new
  • the radio resource link causes the second base station to exchange signaling with the core network, which further saves the overhead of the second base station and the core network.
  • FIG. 7 is a flowchart of a terminal 70.
  • the terminal 70 includes a processor 701 and a transmitter 702 coupled to the processor 701.
  • the processor 701 and the transmitter 702 are connected to each other through a bus. .
  • the processor 701 may be one or more central processing units (English: Central Processing Unit, CPU for short). In the case that the processor 701 is a CPU, the CPU may be a single core CPU or a multi-core CPU.
  • Transmitter 702 is configured to transmit a signal to transmit data, wherein:
  • the processor 701 is configured to: acquire a first signal quality and a first bandwidth in the first base station, where the first signal quality characterizes a current received signal quality of the terminal in a cell of the first base station, The first bandwidth represents a current bandwidth of the first radio resource link; the transmitter 702 is configured to: when the first signal quality is higher than a preset second signal quality, and the first bandwidth satisfies the bearer In the case of the service of the terminal, the link maintenance command is used to instruct the second base station to configure the second radio resource link to be in a dormant state or a lightly connected state.
  • the terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station") to connect the second radio resource link Configured to be in a dormant state or a lightly connected state, so that the terminal can transmit control plane data and user plane data through the first radio resource link, and not transmit control plane data and users through the second radio resource link.
  • base station also referred to as "base station” for distinguishing from the "first base station
  • the second signal quality is a real-time received signal quality of the terminal in a cell of the second base station, or is a preset signal quality threshold.
  • the transmitter sends a link maintenance command, specifically: sending a link maintenance command to the first base station, so that the first base station sends the link maintenance command to the first base station through the X2 interface.
  • the second base station or transmitting the link maintenance command to the second base station.
  • the processor is further configured to: acquire a third signal quality and a second bandwidth, where the third signal quality characterizes that the terminal is in the Determining a current received signal quality in a cell of the first base station, the second bandwidth characterizing a current bandwidth of the first radio resource link; the transmitter is further configured to: when the third signal quality is lower than a preset When the fourth signal quality, or the second bandwidth does not meet the requirement of the service that carries the terminal, the service start command is sent to instruct the second base station to configure the second radio resource link to be in an active state.
  • the terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station") to configure the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, and therefore does not
  • the second base station and the core network exchange signaling are caused by the new radio resource link, which further saves the overhead of the second base station and the core network.
  • in the dormant state there is no air traffic channel between the terminal and the second base station, and there is no context information for accessing the second base station.
  • in the light connection state there is no air traffic channel between the terminal and the second base station, but the terminal and the second base station are respectively stored for receiving Context information of the second base station.
  • the terminal 70 shown in FIG. 7 if the terminal in the dual-connected DC scenario is sufficiently good in the first signal quality in the cell of the first base station, and the first bandwidth of the first radio resource link satisfies the terminal carrying the terminal The demand of the service, the terminal requests the second base station (also referred to as "the base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal The terminal may transmit the control plane data and the user plane data through the first radio resource link, and not transmit the control plane data and the user plane data through the second radio resource link; since the base station uses the second radio resource link The second radio resource link is not logged out in the sleep state or the light connection state, so there is no interaction between the second base station and the core network due to the deregistration of the second radio resource link, which greatly saves the The cost of the two base stations and the core network.
  • the second base station also referred to as "the base station” to distinguish it from the
  • FIG. 8 is a base station 80 according to an embodiment of the present invention.
  • the base station 80 may also be referred to as a second base station.
  • the base station 80 maintains a communication connection with the terminal through the second radio resource link.
  • Wireless resource chain The path maintains a communication connection with the terminal, and the throughput of the first base station is higher than the throughput of the base station, and the base station 80 includes a processor 801 and a receiver 802 coupled to the processor 801.
  • the processor 801 may be one or more central processing units (English: Central Processing Unit, CPU for short). In the case that the processor 801 is a CPU, the CPU may be a single core CPU or a multi-core CPU.
  • Receiver 802 is configured to receive signals for transmission of data, wherein:
  • the receiver 802 is configured to receive a link maintenance command generated by the terminal, and the processor 801 is configured to configure the second radio resource link to be in a dormant state or a lightly connected state according to the indication of the link maintenance command. .
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a dormant state or The second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and the core network. s expenses.
  • the receiver receives the link maintenance command generated by the terminal, specifically: receiving a link maintenance command sent by the first base station, where the link maintenance command of the first base station is used by the terminal And sending to the first base station; or receiving the link maintenance command generated and sent by the terminal.
  • the receiver is further configured to: receive service start The processor is further configured to: configure the second radio resource link to be in an active state according to the indication of the service start instruction.
  • the terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station") to configure the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, and therefore does not
  • the second base station and the core network exchange signaling are caused by the new radio resource link, which further saves the overhead of the second base station and the core network.
  • in the dormant state there is no air traffic channel between the terminal and the second base station, and there is no context information for accessing the second base station.
  • in the light connection state there is no air traffic channel between the terminal and the second base station, but the terminal and the second base station are respectively stored for receiving Context information of the second base station.
  • the terminal requests the second base station (also referred to as "the base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal
  • the terminal may transmit the control plane data and the user plane data through the first radio resource link, and not transmit the control plane data and the user plane data through the second radio resource link; since the base station uses the second radio resource link Configured as a sleep state or a lightly connected state without logging out of the second wireless The resource link, so there is no interaction between the second base station and the core network due to the cancellation of the second radio resource link, which greatly saves the overhead of the second base station and the core network.
  • FIG. 9 is a terminal 90 according to an embodiment of the present invention.
  • the terminal 90 maintains a communication connection with a first base station through a first radio resource link, and a second radio resource link and a second
  • the base station maintains a communication connection, wherein the throughput of the first base station is higher than the throughput of the second base station
  • the terminal includes a first obtaining unit 901 and a first sending unit 902, where the first acquiring unit 901 is used by Obtaining a first signal quality and a first bandwidth, wherein the first signal quality characterizes a current received signal quality of the terminal in a cell of the first base station, the first bandwidth characterizing the first a current bandwidth of the RRC link;
  • the first sending unit 902 is configured to send a link when the first signal quality is higher than a preset second signal quality, and the first bandwidth meets a requirement of a service carrying the terminal
  • the link maintenance command is used to instruct the second base station to configure the second radio resource link to be in a dorman
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a dormant state or The second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and the core network. s expenses.
  • the second signal quality is a real-time received signal quality of the terminal in a cell of the second base station, or is a preset signal quality threshold.
  • the first sending unit 902 sends a link maintenance command, specifically: sending a link maintenance command to the first base station, so that the first base station connects the link through the X2 interface.
  • the maintenance command is sent to the second base station; or the link maintenance command is sent to the second base station.
  • the terminal further includes a second obtaining unit and a second sending unit, where the second acquiring unit is configured to acquire a third signal after the first sending unit sends 902 a link maintenance command. a quality and a second bandwidth, the third signal quality characterizing a current received signal quality of the terminal in a cell of the first base station, the second bandwidth characterizing a current bandwidth of the first radio resource link
  • the second sending unit is configured to send a service start command when the third signal quality is lower than a preset fourth signal quality, or when the second bandwidth does not meet the requirement of the service carrying the terminal, the service start command And configured to instruct the second base station to configure the second radio resource link to be in an active state.
  • the terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station") to configure the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, and therefore does not
  • the second base station and the core network exchange signaling are caused by the new radio resource link, which further saves the overhead of the second base station and the core network.
  • each unit in FIG. 9 may correspond to the corresponding description of the method embodiment shown in FIG. 4.
  • the terminal 90 shown in FIG. 9 if the terminal in the dual-connected DC scenario is sufficiently good in the first signal quality of the cell in the first base station, and the first bandwidth of the first radio resource link satisfies the terminal carrying the terminal The demand of the service, the terminal requests the second base station (also referred to as "the base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal The terminal may transmit the control plane data and the user plane data through the first radio resource link, and not transmit the control plane data and the user plane data through the second radio resource link; since the base station uses the second radio resource link The second radio resource link is not logged out in the sleep state or the light connection state, so there is no interaction between the second base station and the core network due to the deregistration of the second radio resource link, which greatly saves the The cost of the two base stations and the core network.
  • the second base station also referred to as "the base station” to distinguish it from the
  • FIG. 10 is a base station 100 according to an embodiment of the present invention.
  • the base station 100 may also be referred to as a second base station.
  • the base station 100 maintains a communication connection with a terminal through a second radio resource link. Maintaining a communication connection with the terminal by using a first radio resource link, where the throughput of the first base station is higher than the throughput of the base station 100, the base station 100 includes a first receiving unit 1001 and a first configuration unit 1002,
  • the first receiving unit 1001 is configured to receive a link maintenance command generated by the terminal, where the first configuration unit 1002 is configured to configure the second radio resource link to be in a sleep state according to the indication of the link maintenance instruction. Or lightly connected.
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a dormant state or The second radio resource link is not logged off, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and the core network. s expenses.
  • the first receiving unit 1001 receives the link maintenance command generated by the terminal, specifically: receiving a link maintenance command sent by the first base station, and the link maintenance command of the first base station Generated by the terminal and sent to the first base station; or received the link maintenance command generated and transmitted by the terminal.
  • the base station further includes a second receiving unit and a second configuration unit, where the second receiving unit is configured to: at the first configuration unit, according to the indication of the link maintenance instruction, After the second radio resource link is configured to be in a dormant state or a lightly connected state, the service start command is received; the second configuration unit is configured to configure the second radio resource link to be in an active state according to the indication of the service start command.
  • the terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station") to configure the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, and therefore does not New wireless resource chain
  • the road causes the second base station to exchange signaling with the core network, which further saves the overhead of the second base station and the core network.
  • in the dormant state there is no air traffic channel between the terminal and the second base station, and there is no context information for accessing the second base station.
  • in the light connection state there is no air traffic channel between the terminal and the second base station, but the terminal and the second base station are respectively stored for receiving Context information of the second base station.
  • each unit in the embodiment shown in FIG. 10 may refer to the corresponding description of the method embodiment shown in FIG. 4, and the base station in FIG. 10 is equivalent to the second base station described in FIG.
  • the terminal requests the second base station (also referred to as "the base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal
  • the terminal may transmit the control plane data and the user plane data through the first radio resource link, and not transmit the control plane data and the user plane data through the second radio resource link; since the base station uses the second radio resource link
  • the second radio resource link is not logged out in the sleep state or the light connection state, so there is no interaction between the second base station and the core network due to the deregistration of the second radio resource link, which greatly saves the The cost of the two base stations and the core network.
  • the terminal in the communication system 20 of the embodiment of the present invention may be the terminal 70 in the embodiment shown in FIG. 7 or the terminal 90 in the embodiment shown in FIG. 9; the base station in the communication system 20 may be a figure.
  • FIG. 11 is a base station 110 according to an embodiment of the present invention.
  • the base station 110 may also be referred to as a second base station.
  • the base station 110 maintains a communication connection with a terminal through a second radio resource link.
  • a communication connection is maintained with the terminal over the first radio resource link, wherein the throughput of the first base station is higher than the throughput of the base station 110, and the base station 110 includes a processor 1101.
  • the processor 1101 may be one or more central processing units (English: Central Processing Unit, CPU for short). In the case where the processor 1101 is a CPU, the CPU may be a single core CPU or a multi-core CPU.
  • the receiver 1102 is configured to receive a signal to transmit data, wherein:
  • the processor 1101 is configured to: acquire a first signal quality and a first bandwidth, where the first signal quality characterizes a current received signal quality of the terminal in a cell of the first base station, the first bandwidth Characterizing the current bandwidth of the first radio resource link; the processor 1101 is further configured to: when the first signal quality is higher than a preset second signal quality, and the first bandwidth meets a service that carries the terminal When required, the second radio resource link is configured to be in a dormant state or a lightly connected state.
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to a dormant state or The light connection state does not cancel the second radio resource link, so there is no interaction signaling between the second base station and the core network due to deregistration of the second radio resource link.
  • the overhead of the second base station and the core network is saved.
  • the second signal quality is a received signal quality of the terminal in the cell of the base station that is detected by the base station in real time, or is a preset signal quality threshold.
  • the processor 1101 is further configured to: acquire a third signal quality and a second bandwidth, where The third signal quality characterizes the current received signal quality of the terminal in the cell of the first base station, and the second bandwidth represents the current bandwidth of the first radio resource link; the processor 1101 also uses After the third signal quality is lower than the preset fourth signal quality, or the second bandwidth does not meet the requirement of the service carrying the terminal, the second radio resource link is configured to be in an active state.
  • the second base station (also referred to as "base station” for distinguishing from the "first base station") configures the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, so there is no cause
  • the new radio resource link is generated to cause the second base station to exchange signaling with the core network, which further saves the overhead of the second base station and the core network.
  • in the dormant state there is no air traffic channel between the terminal and the second base station, and there is no context information for accessing the second base station.
  • in the light connection state there is no air traffic channel between the terminal and the second base station, but the terminal and the second base station are respectively stored for receiving Context information of the second base station.
  • each unit in the embodiment shown in FIG. 11 may refer to the corresponding description of the method embodiment shown in FIG. 6A, and the base station in FIG. 11 is equivalent to the second base station described in FIG. 6A.
  • the second base station (also referred to as "base station" for distinguishing from the "first base station") is configured to configure the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal Control plane data and user plane data may be transmitted over the first radio resource link without transmitting control plane data and user plane data over the second radio resource link; since the base station configures the second radio resource link as The sleep state or the light connection state does not cancel the second radio resource link, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station. And the overhead of the core network.
  • FIG. 12 is a base station 120 according to an embodiment of the present invention.
  • the base station 120 may also be referred to as a second base station.
  • the base station 120 maintains a communication connection with a terminal through a second radio resource link. Maintaining a communication connection with the terminal by using the first radio resource link, and the throughput of the first base station is higher than the throughput of the base station 120.
  • the base station 120 includes an obtaining unit 1201 and a configuration unit 1202, where the acquiring unit 1201 uses Obtaining a first signal quality and a first bandwidth, wherein the first signal quality characterizes a current received signal quality of the terminal in a cell of the first base station, the first bandwidth characterizing the first The current bandwidth of the radio resource link; the configuration unit 1202 is configured to: when the first signal quality is higher than the preset second signal quality, and the first bandwidth meets the requirement of the service that carries the terminal, the second radio resource The link is configured to be in a sleep state or a lightly connected state.
  • the terminal in the dual connectivity DC scenario is in the first signal quality in the cell of the first base station
  • the quantity is good enough, and the first bandwidth of the first radio resource link meets the requirement of the service carrying the terminal
  • the terminal requests the second base station (also referred to as "base station” for distinguishing from the "first base station")
  • the second radio resource link is configured to be in a dormant state or a lightly connected state, so that the terminal can transmit control plane data and user plane data through the first radio resource link without passing through the second radio resource chain.
  • the radio resource link causes the second base station to exchange signaling with the core network, which greatly saves the overhead of the second base station and the core network.
  • the second signal quality is a received signal quality of the terminal in the cell of the base station that is detected by the base station in real time, or is a preset signal quality threshold.
  • the acquiring unit 1201 is further configured to acquire the third signal quality and the second bandwidth.
  • the third signal quality characterizes the current received signal quality of the terminal in the cell of the first base station, and the second bandwidth represents the current bandwidth of the first radio resource link; the configuration unit 1202 also uses And configuring the second radio resource link to be in an active state when the third signal quality is lower than a preset fourth signal quality, or the second bandwidth does not meet the requirement of the service carrying the terminal.
  • the second base station (also referred to as "base station” for distinguishing from the "first base station") configures the second radio resource link to be in an active state, and the process does not need to re-establish a new radio resource link, so there is no cause
  • the new radio resource link is generated to cause the second base station to exchange signaling with the core network, which further saves the overhead of the second base station and the core network.
  • in the dormant state there is no air traffic channel between the terminal and the second base station, and there is no context information for accessing the second base station.
  • in the light connection state there is no air traffic channel between the terminal and the second base station, but the terminal and the second base station are respectively stored for receiving Context information of the second base station.
  • each unit in the embodiment shown in FIG. 12 may refer to the corresponding description of the method embodiment shown in FIG. 6A, and the base station in FIG. 12 is equivalent to the second base station described in FIG. 6A.
  • the base station 120 shown in FIG. 12 may refer to the corresponding description of the method embodiment shown in FIG. 6A, and the base station in FIG. 12 is equivalent to the second base station described in FIG. 6A.
  • the second base station (also referred to as "base station" for distinguishing from the "first base station") is configured to configure the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can Transmitting control plane data and user plane data through the first radio resource link without transmitting control plane data and user plane data through the second radio resource link; since the base station configures the second radio resource link to sleep The state or the light connection state does not cancel the second radio resource link, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link, which greatly saves the second base station and The cost of the core network.
  • the terminal requests the second base station (also referred to as a "base station” to distinguish it from the "first base station"), and configures the second radio resource link to be in a dormant state or a lightly connected state, so that the terminal can pass the
  • the first radio resource link transmits control plane data and user plane data, and does not transmit control plane data and user plane data through the second radio resource link; since the base station will
  • the second radio resource link is configured to be in a dormant state or a lightly connected state without deregistering the second radio resource link, so there is no interaction between the second base station and the core network due to deregistration of the second radio resource link.
  • the cost of the second base station and the core network is greatly saved.
  • the terminal Requesting a second base station also referred to as "base station” for distinguishing from “first base station” to configure the second radio resource link to an active state
  • this process does not need to re-establish a new radio resource link, and therefore does not exist
  • the second base station interacts with the core network to generate signaling due to the new radio resource link, which further saves the overhead of the second base station and the core network.
  • the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de communication, un dispositif associé et un système. Le procédé est appliqué à un scénario à double connexion, où un terminal maintient respectivement une connexion de communication avec une première station de base d'un côté réseau par l'intermédiaire d'une première liaison de ressource radio et avec une deuxième station de base du côté réseau par l'intermédiaire d'une deuxième liaison de ressource radio, le débit de la première station de base étant supérieur à celui de la deuxième station de base. Le procédé comprend les étapes suivantes : le terminal obtient une première qualité de signal et une première bande passante ; lorsque la première qualité de signal est supérieure à une deuxième qualité de signal prédéfinie et que la première bande passante respecte une exigence de transport d'un service du terminal, le terminal envoie une commande de maintien de liaison au côté réseau, la commande de maintien de liaison étant utilisée pour donner l'instruction à la deuxième station de base de configurer la deuxième liaison de ressource radio pour qu'elle soit dans un état dormant ou dans un état de connexion de légère. La présente invention économise du temps système de communication entre des stations de base et un réseau central.
PCT/CN2017/079017 2017-01-06 2017-03-31 Procédé de communication, dispositif associé et système Ceased WO2018126547A1 (fr)

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