CN107623934B - An access method and device - Google Patents

Abstract

The invention discloses an access method and device. In the present invention, the sending device sends one or more access signals, wherein different access signals are transmitted on different resources. It can be seen that a sending device can send either one access signal or multiple access signals, thereby improving the flexibility of system access, and further enabling the embodiments of the present invention to be deployed in a large bandwidth range in the future Frequency resources, communication systems using a larger number of antennas.

Description

An access method and device

technical field

The present invention relates to the field of communication technologies, and in particular, to an access method and device.

Background technique

A wireless communication system includes at least one network node (node) and user equipment (User Equipment, UE for short) for downlink transmission and uplink reception, where the number of the nodes may be one or more. After the UE is powered on, it searches for a network site and performs network access through the network site. If a wireless network includes multiple network sites, the UE can access through any one of the multiple network sites.

For example, in a Long Term Evolution (LTE) system, each network site can be configured as a cell, each cell sends its own synchronization (SYNC) signal, and the UE detects the synchronization signals of different cells and selects one A cell performs network access, and this process is called access.

Existing communication systems are mainly deployed in low frequency bands, and the network sites in the communication system have fewer antennas. With the development of communication technology, the future communication system will be deployed in the wide bandwidth range of 0.4GHz-100GHz, and the number of antennas owned by network sites will increase sharply to hundreds or even thousands. The traditional access scheme is no longer suitable for future communication systems, so there is an urgent need to provide a suitable access scheme for future communication systems.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide an access method and apparatus.

The access method provided by the embodiment of the present invention includes:

The sending device sends one or more access signals; wherein different access signals are transmitted on different resources.

Optionally, the number of access signals sent by the sending device at least at two different time points is different.

Optionally, the access signal includes one or more components; at least one component in the at least two access signals is transmitted on different resources.

Optionally, the transmission frequency of the access signal is any frequency within the system bandwidth, or is any frequency in a preset group of frequencies within the system bandwidth.

Optionally, different access signals are transmitted on different resources, including one or any combination of the following:

Different access signals, or at least one component of different access signals, are sent at different time resources;

Different access signals, or at least one component of different access signals, are sent on different frequency resources;

Different access signals, or at least one component of different access signals, are sent in different space resources using different shaping matrices or different stations in the sending device;

Different access signals, or at least one component of different access signals, are sent using different sequences, the sequences including a combination of one or more of a transmission sequence, a scrambling sequence, and a spreading sequence.

The access method provided by the embodiment of the present invention includes:

The receiving device receives one or more access signals; wherein, different access signals are transmitted on different resources;

The receiving device performs network access according to the received access signal.

Optionally, the receiving device performs network access according to the received access signal, including:

After receiving an access signal, the receiving device performs network access at least according to the currently received access signal, and if the access is successful, ends the process, otherwise receives the next access signal, wherein the at least according to the current access signal is performed. Performing network access with the received access signal includes: performing network access only according to the currently received access signal, or performing network access according to the current and previously received access signals; or,

After receiving the multiple access signals, the receiving device selects one access signal, and performs network access according to the selected access signal; or,

After receiving the multiple access signals, the receiving device combines the multiple access signals, and performs network access according to the combined signals.

Optionally, the receiving device performs network access according to the received access signal, including:

The receiving device independently uses an access signal for network access; or,

The receiving device jointly uses multiple access signals for network access.

Optionally, after the receiving device is connected to the network, it further includes:

Obtain transmission-related information from the access signal upon which the network is accessed, where the transmission-related information includes channel bandwidth and/or starting position information; or,

According to the characteristics of the access signal on which the network is accessed, and the correspondence between the characteristics of the access signal and the transmission-related information, the transmission-related information corresponding to the characteristics of the access signal on which the network is accessed is obtained, and the Transmission related information includes channel bandwidth and/or starting location information.

Optionally, the access signal includes one or more components;

At least one component of the at least two access signals is transmitted on different resources.

Optionally, different access signals are transmitted on different resources, including one or any combination of the following:

Different access signals, or at least one component of different access signals, are sent at different time resources;

Different access signals, or at least one component of different access signals, are sent on different frequency resources;

Different access signals, or at least one component of different access signals, are sent in different space resources using different shaping matrices or different stations in the sending device;

Different access signals, or at least one component of different access signals, are sent using different sequences, the sequences including a combination of one or more of a transmission sequence, a scrambling sequence, and a spreading sequence.

The sending device provided by the embodiment of the present invention includes:

The sending module is used for sending one or more access signals; wherein, different access signals are transmitted on different resources.

The receiving device provided by the embodiment of the present invention includes:

a receiving module, configured to receive one or more access signals; wherein, different access signals are transmitted on different resources;

The access module is used for network access according to the received access signal.

In the above embodiments of the present invention, the sending device sends one or more access signals, wherein different access signals are transmitted on different resources. It can be seen that a sending device can send either one access signal or multiple access signals, thereby improving the flexibility of system access, and further enabling the embodiments of the present invention to be deployed in a large bandwidth range in the future Frequency resources, communication systems using a larger number of antennas.

Description of drawings

1 is a schematic diagram of a wireless network architecture in an embodiment of the present invention;

2a is a schematic diagram of AS frequency division multiplexing in an embodiment of the present invention;

2b is a schematic diagram of the combined use of AS frequency division multiplexing and space division multiplexing in an embodiment of the present invention;

3a is a schematic diagram of time division multiplexing of AS in an embodiment of the present invention;

3b is a schematic diagram of the combined use of time division multiplexing and space division multiplexing of AS in an embodiment of the present invention;

4 is a schematic diagram of multiplexing of components in multiple ASs in an embodiment of the present invention;

FIG. 5 is a schematic diagram of an access process implemented on a network node side according to an embodiment of the present invention;

FIG. 6 and FIG. 7 are respectively schematic diagrams of an access process implemented on the user equipment side according to an embodiment of the present invention;

FIG. 8 and FIG. 9 are respectively schematic structural diagrams of a sending device provided by an embodiment of the present invention;

FIG. 10 and FIG. 11 are respectively schematic structural diagrams of a receiving device according to an embodiment of the present invention.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In this embodiment of the present invention, the involved devices include a sending network device and a receiving device, and downlink transmission and uplink reception can be performed between the sending device and the receiving device accessing the sending device. The sending device can send one or more access signals, and the receiving device can receive one or more access signals sent by the sending device, and can perform network access according to the received one or more access signals.

The sending device may be a base station or other types of transmission point devices, and the receiving device may be a user equipment (or terminal). Of course, it is not limited to the above two devices. For example, the sending device may also be a terminal capable of performing configuration operations on other terminals. It can also be considered that a sending device contains multiple network sites. The network site may only include radio frequency (such as RRU) or include both baseband and radio frequency (such as Active antenna). The network site can only include baseband (such as BBU); it can also not include any digital/radio functions of the air interface layer at all, and is only responsible for high-level signal processing, and the baseband processing of the air interface layer is placed in the active antenna. Various other network implementations are also possible.

The base station may be an evolved base station (Evolutional Node B, eNB or e-NodeB for short), macro base station, micro base station (also called "small base station"), pico base station, access An Access Point (AP for short) or a Transmit or Receive Point (TRP for short), etc., can also be a base station in a future network, such as a base station in a 5G network.

The terminal may also be called user equipment (User Equipment, referred to as UE), or may be referred to as Terminal, mobile station (Mobile Station, referred to as MS), mobile terminal (Mobile Terminal), etc. Radio Access Network, RAN for short) communicates with one or more core networks, for example, the terminal may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., for example, the terminal may also be a portable, Pocket, handheld, computer built-in or vehicle mounted mobile devices that exchange voice and/or data with a radio access network. The terminal in this embodiment of the present invention may also be a D2D (Device to Device, device to device) terminal or an M2M (Machine to Machine, machine to machine) terminal.

For the convenience of description, the following embodiments take the TRP as the sending device and the user equipment as the receiving device as an example for description.

A wireless network may cover multiple cells (cells), different cells cover different ranges, and one cell may be used for user equipment to access the network. Each cell corresponds to a unique cell ID. A cell may include one or several TRPs. Each TRP includes N antennas, where N is an integer greater than or equal to 1. The antennas on the TRP can be beamformed, and the downlink signal is sent on the antennas after beamforming. Each beam provides wide or narrow coverage, depending on the number of antennas and beamforming.

In this embodiment of the present invention, a cell in a wireless network may be replaced by a system information area (System Information Area). A cell or system information area is defined as a radio network object. In the following embodiments, unless otherwise stated, "cell" is used for description, but it should be understood that the "cell" in the embodiment of the present invention may be replaced by the "wireless network object" defined above, such as "system information" area".

FIG. 1 exemplarily shows a network architecture to which the embodiments of the present invention are applicable. Among them, cell 1 includes one TRP, which sends a wide coverage beam to cover the range of the cell; cell 2 includes one TRP, which sends two narrow coverage beams (beams 1 and 1 shown in cell 2 in the figure and Beam 2) to cover the range of the cell; cell 3 includes two TRPs, each TRP transmits a narrow coverage beam, and the two TRPs transmit two narrow coverage beams (beam 1 and beam shown in cell 3 in the figure 2) The range of the cell can be covered.

The TRP in the above wireless network sends an access signal, and the user equipment can perform network access based on the received access signal. In the embodiment of the present invention, the access signal used for the user equipment to perform network access is called AS (AccessSignal).

It should be pointed out that. The AS in the embodiment of the present invention is used to broadly refer to one or several signals that may be used by the user equipment in the process of accessing the network, and is a general term for the signals required by the user equipment in the process of accessing the network. AS can include one signal or multiple signals. An AS can be used to implement one or more functions, and the functions it provides may include but are not limited to: initial synchronization (for example, cell synchronization, time domain/frequency domain synchronization), cell (or system information area) ID detection, system Information demodulation, etc. Accordingly, the signals contained in an AS may implement one or more of the functions listed above. In this embodiment of the present invention, the functions provided by the AS may include one or some of the functions listed above, but are not limited to the functions listed above. Meanwhile, the signals included in an AS are not limited to the realization of A specific signal for one or some of the functions listed above.

In this embodiment of the present invention, one AS may enable one or more user equipments to access a cell. A user equipment can also access a cell based on one or more ASs.

In some embodiments, an AS contains one component. In other embodiments, an AS includes multiple components. A component can be used to implement a function in the network access process (such as the time-frequency synchronization function), and different components can be used to implement different functions in the access process or be applied to different functions in the access process. stages or different steps. One or some components included in different ASs are different, and the user equipment can distinguish different ASs based on one or some components (components) in the AS. For example, AS1 and AS2 are two different ASs sent by two TRPs in a cell (one TRP sends one AS), AS1 and AS2 respectively contain two components (component1 and component2), component1 of AS1 and AS2 component1 is the same, component2 of AS1 and component2 of AS2 are not the same. More specifically, component1 contains the cell ID, and component2 contains the TRP ID.

In this embodiment of the present invention, the TRP in the cell can send one or more ASs, and a user equipment can receive one or more ASs sent by the cell in the downlink, and can access the cell according to the received AS.

Among them, one AS can be sent by one TRP, or can be sent by a group of TRPs. From the perspective of a TRP in a cell, the TRP can send an AS, and the sent AS is different from the AS sent by other TRPs in the cell; or, the TRP can send an AS, and the sent AS is different from the AS sent by the cell. The AS sent by at least one other TRP within the same is the same; alternatively, the TRP may send multiple ASs.

Optionally, the AS may be sent at the center frequency of the cell, or may be sent at other frequencies of the cell. For example, in some embodiments, the sending frequency of the AS can be selected arbitrarily, that is, the AS can be sent at any frequency within the system bandwidth; in other embodiments, the AS can be preset in a set of frequencies within the system bandwidth. Send on any frequency in the point.

Optionally, the number of ASs sent by one TRP in one cell at different time points may remain unchanged, or the number of ASs sent at least two different time points may be different.

Optionally, the number of ASs sent by a cell may be related to various factors. For example, the number of ASs sent by a network site is related to the number of beams used by the network site. For example, the number of ASs sent by a network site is equal to the number of beams used by the network site. For another example, the number of ASs sent by all network sites in a cell is related to the number of network sites in the cell. For example, the number of ASs sent by a cell is the same as the number of network sites included in the cell. For another example, the number of ASs sent by all network sites in a cell is related to the number of network sites in the cell and the number of beams used by each network site.

Optionally, when a cell includes multiple TRPs, the number of ASs sent by each TRP is different from each other; or, the numbers of ASs sent by at least two TRPs are the same as each other.

As an example, if a cell includes N (N is an integer greater than 1) TRPs, and each TRP sends one AS, the cell can send N ASs. Each TRP transmits the AS in a wide beamforming manner, and the transmitted AS provides wide coverage for the TRP, that is, the beam used by the TRP can cover the coverage of the TRP. In this way, the N ASs of the cell can cover the coverage of all TRPs in the entire cell.

As another example, a cell contains one TRP, the TRP uses M (M is an integer greater than 1) beams to transmit M ASs, each AS uses a beam for transmission, and each beam points in one direction, the M The beam can cover the coverage of the entire cell.

If one cell or one TRP in the cell transmits multiple ASs, different ASs are transmitted on different resources, that is, the multiple ASs can be multiplexed by one or more multiplexing methods. Multiple ASs are multiplexed in different ways, so that the user equipment can distinguish different ASs.

Among them, the multiplexing modes adopted by different ASs may include one or more combinations of the following multiplexing modes:

Time Division Multiplexing (Time Division Multiplexing, TDM for short): different ASs or at least one component of different ASs are sent in different time resources;

Frequency Division Multiplexing (Frequency Division Multiplexing, FDM for short): different ASs or at least one component of different ASs are sent on different frequency resources;

Space Division Multiplexing (SDM for short): Different ASs or at least one component of different ASs are sent in different space resources using different beams, or sent through different TRPs;

Code Division Multiplexing (CDM for short): Different ASs or at least one component of different ASs are sent using different sequences. The sequences here may include transmission sequences (such as base sequence), One or more combinations of scrambling sequences and spreading sequences, etc.

In an example where multiple ASs use CDM for multiplexing, different ASs use different base sequences to generate, so that the sequences of different ASs are different from each other, thereby realizing CDM multiplexing of multiple ASs. For example, the first AS uses the first base sequence, and the second AS signal uses the second base sequence.

In other examples where multiple ASs use CDM for multiplexing, a method of combining CDM with other multiplexing methods may also be used. For example, in the case of combining CDM and SDM, the first AS sends from the first TRP and the second AS sends from the second TRP, the first base sequence may correspond to the ID of the first TRP, and the second base sequence The sequence may correspond to the ID of the second TRP. For another example, if the first AS transmits from the first shaped beam and the second AS transmits from the second shaped beam, the first base sequence may correspond to the ID of the first shaped beam, and the second base sequence may correspond to the ID of the first shaped beam. ID for the second shaped beam. For another example, the first AS and the second AS use the same base sequence, but use different scrambling sequences for scramble.

Figure 2a shows an example of multiple ASs using FDM for multiplexing. As shown in Figure 2a, a cell contains 4 TRPs (TRP1 to TRP4 as shown in the figure), each TRP transmits an independent AS on a different frequency, and each TRP transmits the frequency location used by the AS As shown in the squares in the time-frequency resource table in the figure, the square marked with TRP1 represents the frequency resource location used by TRP1 to send AS, and the square marked with TRP2 represents the frequency resource location used by TRP2 to send AS. analogy. The UE can distinguish different TRPs according to the frequency points occupied by the AS.

In other examples, multiple TRPs (two or more TRPs) may transmit the same AS on the same time-frequency resource, and in this case, the UE cannot distinguish these TRPs.

Figure 2b shows an example of multiple ASs using FDM and SDM for multiplexing. As shown in Figure 2b, a cell contains 1 TRP, and multiple antennas on the TRP transmit 3 ASs through beamforming, and each beam points in one direction. The frequency resource position occupied by each AS is shown as a block in the adaptation resource table in the figure, wherein the block marked with beam1 represents the frequency resource position occupied by AS1 sent by beam 1, and the block marked with beam2 represents The frequency resource position occupied by AS2 sent by beam 2, and so on. UEs distributed in different directions in the cell search for beams in the corresponding directions to receive the strongest or sufficiently strong AS and access the cell according to the searched AS.

Figure 3a shows an example of multiple ASs using TDM for multiplexing. As shown in Figure 3a, a cell contains 3 TRPs, each TRP transmits an independent AS at the same frequency point and different time points, and the time-frequency resource position used by each TRP to transmit the AS is as shown in the figure The squares in the frequency resource table, wherein the square marked with TRP1 represents the time-frequency resource location used by TRP1 to send AS, the square marked with TRP2 represents the time-frequency resource location used by TRP2 to send AS, and so on.

Among them, an AS can contain two components: MIB and SYNC. The MIB carries system information, and SYNC is a synchronization sequence.

Figure 3b shows an example of multiple ASs using TDM and SDM for multiplexing. As shown in Figure 3b, a cell contains 1 TRP, and multiple antennas on the TRP transmit 3 ASs through beamforming, and each beam points in one direction. The frequency resource position occupied by each AS is shown as a block in the adaptation resource table in the figure, wherein the block marked with beam1 represents the frequency resource position occupied by AS1 sent by beam 1, and the block marked with beam2 represents The frequency resource position occupied by AS2 sent by beam 2, and so on. UEs distributed in different directions in the cell search for beams in the corresponding directions to receive the strongest or sufficiently strong AS and access the cell according to the searched AS.

Among them, an AS can contain two components: MIB and SYNC. The MIB carries system information, and SYNC is a synchronization sequence.

As mentioned above, an AS may contain one component or multiple components. If each of the multiple ASs sent by a cell includes multiple components, one or some components of the multiple ASs may be multiplexed in one or more multiplexing manners (available The multiplexing mode may include one or more of FDM, TDM, CDM, and SDM). The user equipment can distinguish different ASs through a certain component in the AS.

FIG. 4 shows an example in which one AS includes multiple components, and a certain component of multiple ASs is multiplexed by using FDM. As shown in Figure 4, the two ASs consist of two parts respectively, the first part and the second part are transmitted at different times, the first part of the two ASs are exactly the same, and the second part of the two ASs Multiplexing on different frequency resources, the multiplexing of the two ASs is realized by the multiplexing of the second component.

In this embodiment of the present invention, one AS may enable one or more user equipments to access a cell. A user equipment can also access a cell based on one or more ASs.

One AS can satisfy all the conditions required by all user equipments in a cell to access the cell, and one AS can also satisfy some of the conditions required by all user equipments in the cell to access the cell. For the latter, on the premise that the received signal strength of the AS received by the user equipment meets the performance requirements of the access cell (for example, the received signal strength of the AS is higher than the set threshold), the AS can functionally enable the user equipment to pass This AS accesses the cell.

A user equipment does not necessarily access a cell according to each AS, but if the received signal strength of the user equipment received from the AS is sufficiently large, the operation of accessing the cell can be implemented through one or several ASs.

The user equipment may use a variety of possible baseband algorithms to perform cell access based on one AS or several ASs. Several possible baseband algorithms are exemplarily shown below:

Algorithm 1: The user equipment independently detects an AS. After the user equipment searches for an AS, it performs cell access according to the AS. If it successfully accesses the cell, the access process is completed, and the user equipment does not process other ASs. Otherwise, it searches for the next AS and repeats the above process.

Algorithm 2: The user equipment jointly detects multiple ASs. After the user equipment searches for an AS, it cooperates with the AS and the previously received AS for cell access. If it successfully accesses the cell, the access process is completed; otherwise, it searches for the next AS and repeats the above process.

Algorithm 3: After receiving multiple ASs, the user equipment selects an AS according to the signal quality (for example, selects the AS with the highest received signal strength), and performs network access according to the selected AS. In specific implementation, after detecting an AS, the user equipment detects other ASs according to the time-frequency position relationship between ASs preset by the system, selects the AS with the highest quality from all the detected ASs, and then selects the AS with the highest quality according to the selected AS. The cell access procedure is performed.

Algorithm 4: After the user equipment receives multiple ASs, the multiple ASs are combined, and network access is performed according to the combined ASs. In specific implementation, after detecting an AS, the user equipment detects other ASs according to the time-frequency position relationship between the ASs preset by the system, combines all the detected ASs, and then performs cell access according to the combined ASs process.

It should be noted that the above Algorithm 3 and Algorithm 4 only exemplarily illustrate the way of processing multiple received ASs (selecting ASs according to signal quality or performing combined processing), and the embodiments of the present invention are not limited to the above-mentioned ones. Signal processing method.

According to the above description, FIG. 5 and FIG. 6 exemplarily show the AS transmission flow on the sending device side and the receiving device side, respectively.

As shown in Figure 5, the process implemented by the sending device side may include the following steps:

Step 501: Determine the number of ASs that a cell needs to send. In this example, the number of ASs determined is multiple.

For the number of ASs sent by one cell or one TRP, reference may be made to the description of the foregoing embodiments, and details are not described herein again.

Step 502: Determine the multiplexing mode of the multiple ASs. The multiplexing method used is as described above and will not be described in detail here.

Step 503: According to the determined multiplexing mode, send the determined corresponding number of ASs in the downlink.

As shown in FIG. 6 , the process implemented by the receiving device (such as user equipment) side may include the following steps:

Step 601: The user equipment receives one or more ASs sent by a network station in a cell. The AS sending method may adopt the AS sending method provided by the embodiment of the present invention.

Step 602: The user equipment performs network access according to the received AS.

Further, in some embodiments, after the user equipment accesses the network, it may further include the following process: obtaining transmission related information from the AS on which the network access is based. In other embodiments, after the user equipment accesses the network, it may further include the following process: obtaining and accessing the network according to the characteristics of the AS on which the network is accessed, and the correspondence between the characteristics of the AS and the transmission-related information. Transmission-related information corresponding to the characteristics of the AS on which the network is based. Wherein, the transmission related information may include channel bandwidth and/or starting position information. The characteristics of the AS may include: a sequence used by the AS (such as a basic codeword sequence, a scrambling code sequence, etc.) or a frequency point occupied by the AS, etc., which are not listed one by one here.

For example, after the user equipment successfully accesses the cell according to the received AS, it can further obtain the channel bandwidth and starting position information. This information may be obtained by detecting additional signals (eg by detecting system information), or may be obtained indirectly or directly from the AS.

In an example of obtaining the channel bandwidth and starting position information directly from the AS, the AS contains the channel bandwidth and starting position information (such as bits used to indicate the channel bandwidth and starting position), so that the AS can be directly obtained according to the AS. Get the channel bandwidth and starting position.

In an example of indirectly obtaining the channel bandwidth and starting position information from the AS, the scrambling sequence of the AS has a corresponding relationship with the channel bandwidth and the starting position. There are four possible sequences corresponding to the scrambling sequence, and the user equipment can obtain the corresponding channel bandwidth according to the corresponding relationship after detecting the scrambling sequence of the AS.

Based on the process shown in FIG. 6 , FIG. 7 shows a more specific signal receiving process implemented by the user equipment side.

As shown in Figure 7, the process may include the following steps:

Step 701: the user equipment searches for an AS;

Step 702: After searching the AS, the user equipment performs network access according to the searched AS;

Step 703: The user equipment determines whether the access to the cell is successful, if the access is successful, then go to step 704, otherwise, go to step 701 to continue searching for the AS;

Step 704: The access process of the user equipment is completed.

Optionally, after searching for the AS again, the user equipment may independently use the AS searched again for network access, or may perform network access in conjunction with the AS searched again and the AS previously searched for.

According to the process shown in FIG. 7, as an example, after the user equipment searches for the first AS, it performs network access according to the first AS. If it successfully accesses the cell, this process ends, otherwise the user equipment searches The second AS; after searching for the second AS, the user equipment jointly uses the searched first AS and the second AS for network access. If the cell is successfully accessed, the process ends, otherwise the user The device searches for the third AS. Subsequent procedures can be deduced in the same way until the cell is successfully accessed or the end condition is met.

Since in this embodiment of the present invention, one AS can enable one or more user equipments to access the network, after the user equipment searches for the AS, it can generally access the network according to the searched AS, but some special cases are not excluded. The AS may not be searched, or even if the AS is searched, the access may fail. For these situations, an end condition for terminating network access may be set, and when the end condition is satisfied, the user equipment may end the network access process, and may further prompt network access failure. For example, a default duration or a default number of times can be set. If the network fails to be successfully accessed within the default duration or when the number of access times reaches the default number of times, the end condition is satisfied.

It can be seen from the above description that in the above embodiments of the present invention, a sending device sends one or more access signals for a receiving device to access the network, and different access signals are transmitted on different resources. ground, using one or more multiplexing methods for multiplexing. It can be seen that a sending device can send either one access signal or multiple access signals, thereby improving the flexibility of system access, and further enabling the embodiments of the present invention to be deployed in a large bandwidth range in the future Frequency resources, communication systems using a larger number of antennas.

Based on the same technical idea, an embodiment of the present invention further provides a sending device, which can implement the AS sending process described in the foregoing embodiments.

As shown in FIG. 8, the sending device may include: a sending module 801, wherein:

The sending module 801 is configured to send one or more access signals, wherein different access signals are transmitted on different resources.

Optionally, the number of access signals sent by the sending module 801 at least at two different time points is different.

Optionally, the access signal sent by the sending module 801 includes one or more components; the sending module 801 is specifically configured to: transmit at least one component in the at least two access signals on different resources.

Optionally, the transmission frequency of the access signal is any frequency within the system bandwidth, or is any frequency in a preset group of frequencies within the system bandwidth.

Optionally, the sending module 801 is specifically configured to perform one or any combination of the following operations:

Sending different access signals, or at least one component of different access signals, at different time resources;

Sending different access signals, or at least one component of different access signals, on different frequency resources;

Sending different access signals, or at least one component of different access signals, in different space resources, using different shaping matrices or different stations in the sending device;

Different access signals, or at least one component of different access signals, are sent using different sequences, where the sequences include a combination of one or more of a transmission sequence, a scrambling sequence, and a spreading sequence.

Based on the same technical idea, an embodiment of the present invention further provides a sending device, which can implement the AS sending process described in the foregoing embodiments.

As shown in FIG. 9 , the sending device may include: a processor 901 , a memory 902 and a bus interface.

The processor 901 is responsible for managing the bus architecture and general processing, and the memory 902 may store data used by the processor 901 in performing operations.

The bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 901 and various circuits of memory represented by memory 902 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. The processor 901 is responsible for managing the bus architecture and general processing, and the memory 902 may store data used by the processor 901 in performing operations.

The processes disclosed in the embodiments of the present invention may be applied to the processor 901 or implemented by the processor 901 . In the implementation process, each step of the signal processing flow may be completed by hardware integrated logic circuits in the processor 901 or instructions in the form of software. The processor 901 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the embodiments of the present invention. The disclosed methods, steps, and logical block diagrams of . A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 902, and the processor 901 reads the information in the memory 902, and completes the steps of the signal sampling rate conversion process in combination with its hardware.

Specifically, the processor 901, for reading the program in the memory 902, performs the following processes:

One or more access signals are sent; wherein different access signals are transmitted on different resources.

For the sending manner of the access signal, reference may be made to the foregoing embodiments, which will not be described in detail here.

Based on the same technical idea, an embodiment of the present invention further provides a receiving device, which can implement the AS receiving process and the access process described in the foregoing embodiments.

As shown in FIG. 10 , the receiving device may include: a receiving module 1001, an access module 1002, and further, a processing module 1003, wherein:

a receiving module 1001, configured to receive one or more access signals; wherein, different access signals are transmitted on different resources;

The access module 1002 is configured to perform network access according to the received access signal.

Optionally, the access module 1002 is specifically used for:

After receiving an access signal, perform network access at least according to the currently received access signal, if the access is successful, end the process, otherwise receive the next access signal, wherein the network access is at least based on the currently received access signal. Performing network access by incoming signals includes: performing network access only based on the currently received access signal, or performing network access based on current and previously received access signals; or, after receiving multiple access signals, selecting one access signal, and perform network access according to the selected access signal; or, after receiving multiple access signals, combine the multiple access signals, and perform network access according to the combined signal.

Optionally, the access module 1002 is specifically configured to: independently use one access signal to perform network access; or, jointly use multiple access signals to perform network access.

Optionally, the processing module 1003 is configured to, after accessing the network, obtain transmission-related information from the access signal based on which the network is accessed, where the transmission-related information includes channel bandwidth and/or starting position information; or, According to the characteristics of the access signal on which the network is accessed, and the correspondence between the characteristics of the access signal and the transmission-related information, the transmission-related information corresponding to the characteristics of the access signal on which the network is accessed is obtained, and the Transmission related information includes channel bandwidth and/or starting location information.

Optionally, the access signal includes one or more components; at least one component of at least two access signals is transmitted on different resources.

Based on the same technical idea, an embodiment of the present invention further provides a receiving device, which can implement the AS receiving process and the access process described in the foregoing embodiments.

As shown in FIG. 11, the receiving may include: a processor 1101, a memory 1102, and a bus interface.

The processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1102 may store data used by the processor 901 in performing operations.

The bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 1101 and various circuits of memory represented by memory 1102 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. The processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1102 may store data used by the processor 1101 in performing operations.

The processes disclosed in the embodiments of the present invention may be applied to the processor 1101 or implemented by the processor 1101 . In the implementation process, each step of the signal processing flow can be completed by an integrated logic circuit of hardware in the processor 1101 or an instruction in the form of software. The processor 1101 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the embodiments of the present invention. The disclosed methods, steps, and logical block diagrams of . A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 1102, and the processor 1101 reads the information in the memory 1102, and completes the steps of the signal sampling rate conversion process in combination with its hardware.

Specifically, the processor 1101, for reading the program in the memory 1102, performs the following processes:

receiving one or more access signals; wherein different access signals are transmitted on different resources;

Network access is performed according to the received access signal.

For the transmission method of the access signal, and the specific implementation method of network access according to the access signal, reference may be made to the foregoing embodiments, which will not be described in detail here.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

Although preferred embodiments of the present invention have been described, additional changes and modifications to these embodiments may occur to those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiment and all changes and modifications that fall within the scope of the present invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (18)

1. An access method, characterized in that it is applied to a wireless access system, the wireless access system includes at least one sending device, the sending device is used to send an access signal, and access signals sent by different sending devices Signals occupy different resources, and different access signals sent by the same sending device occupy different resources, and the resources correspond to beams. The method includes: The sending device sends one or more access signals; wherein, one access signal includes one or more components, and when multiple components are included, at least one component among the multiple components included in different access signals Different, access signals sent by different sending devices or different access signals sent by the same sending device are transmitted on different resources, so that the receiving device can distinguish different sending devices or different access signals according to different resources occupied by different access signals. The access signal corresponding to the beam; Wherein, different access signals are transmitted on different resources, including one or any combination of the following: Different access signals, or at least one component of different access signals, are sent at different time resources; Different access signals, or at least one component of different access signals, are sent on different frequency resources; Different access signals, or at least one component of different access signals, are sent in different space resources using different shaping matrices or different stations in the sending device; Different access signals, or at least one component of different access signals, are sent using different sequences, the sequences including a combination of one or more of a transmission sequence, a scrambling sequence, and a spreading sequence. 2 . The method according to claim 1 , wherein the number of access signals sent by the sending device at least at two different time points is different. 3 . 3. The method of claim 1, wherein the access signal comprises one or more components; At least one component of the at least two access signals is transmitted on different resources. 4 . The method according to claim 1 , wherein the transmission frequency of the access signal is any frequency in the system bandwidth, or any frequency in a group of preset frequencies in the system bandwidth. 5 . point. 5. An access method, characterized in that it is applied to a wireless access system, the wireless access system includes at least one sending device, the sending device is used to send an access signal, and the access signal sent by different sending devices Signals occupy different resources, and different access signals sent by the same sending device occupy different resources, and the resources correspond to beams. The method includes: The receiving device receives multiple access signals; wherein one access signal includes one or more components, and when multiple components are included, at least one of the multiple components included in different access signals is different, Different access signals are transmitted on different resources, so that the receiving device can distinguish the access signals corresponding to different sending devices or beams according to different resources occupied by different access signals; The receiving device performs network access according to the received access signal; Wherein, different access signals are transmitted on different resources, including one or any combination of the following: Different access signals, or at least one component of different access signals, are sent at different time resources; Different access signals, or at least one component of different access signals, are sent on different frequency resources; Different access signals, or at least one component of different access signals, are sent in different space resources using different shaping matrices or different stations in the sending device; Different access signals, or at least one component of different access signals, are sent using different sequences, the sequences including a combination of one or more of a transmission sequence, a scrambling sequence, and a spreading sequence. 6. The method according to claim 5, wherein the receiving device performs network access according to the received access signal, comprising: After receiving an access signal, the receiving device performs network access at least according to the currently received access signal, and if the access is successful, ends the process, otherwise receives the next access signal, wherein the at least according to the current access signal is performed. Performing network access with the received access signal includes: performing network access only according to the currently received access signal, or performing network access according to the current and previously received access signals; or, After receiving the multiple access signals, the receiving device selects one access signal, and performs network access according to the selected access signal; or, After receiving the multiple access signals, the receiving device combines the multiple access signals, and performs network access according to the combined signals. 7. The method of claim 5, wherein the receiving device performs network access according to the received access signal, comprising: The receiving device independently uses an access signal for network access; or, The receiving device jointly uses multiple access signals for network access. 8. The method according to claim 5, wherein after the receiving device accesses the network, the method further comprises: Obtain transmission-related information from the access signal upon which the network is accessed, where the transmission-related information includes channel bandwidth and/or starting position information; or, According to the characteristics of the access signal on which the network is accessed, and the correspondence between the characteristics of the access signal and the transmission-related information, the transmission-related information corresponding to the characteristics of the access signal on which the network is accessed is obtained, and the Transmission related information includes channel bandwidth and/or starting location information. 9. The method of claim 5, wherein the access signal comprises one or more components; At least one component of the at least two access signals is transmitted on different resources. 10. A sending device, characterized in that it is applied to a wireless access system, the wireless access system includes at least one sending device, and the sending device is used to send an access signal, and the access signal sent by different sending devices Occupying different resources, different access signals sent by the same sending device occupy different resources, and the resources correspond to beams, and the sending device includes: A sending module, used for sending multiple access signals; wherein one access signal includes one or more components, and when multiple components are included, at least one of the multiple components included in different access signals is composed of Some of them are different, and different access signals are transmitted on different resources, so that the receiving device can distinguish the access signals corresponding to different sending devices or beams according to different resources occupied by different access signals; Wherein, the sending module is specifically configured to perform one or any combination of the following operations: Sending different access signals, or at least one component of different access signals, at different time resources; Sending different access signals, or at least one component of different access signals, on different frequency resources; Sending different access signals, or at least one component of different access signals, in different space resources, using different shaping matrices or different stations in the sending device; Different access signals, or at least one component of different access signals, are sent using different sequences, where the sequences include a combination of one or more of a transmission sequence, a scrambling sequence, and a spreading sequence. 11 . The device according to claim 10 , wherein the number of access signals sent by the sending module at least at two different time points is different. 12 . 12. The device according to claim 10, wherein the access signal sent by the sending module includes one or more components; The sending module is specifically configured to: transmit at least one component of the at least two access signals on different resources. 13 . The device according to claim 10 , wherein the transmission frequency of the access signal is any frequency in the system bandwidth, or any frequency in a group of preset frequencies in the system bandwidth. 13 . point. 14. A receiving device, characterized in that it is applied to a wireless access system, wherein the wireless access system includes at least one sending device, and the sending device is used to send an access signal, and the access signal sent by different sending devices Occupying different resources, different access signals sent by the same sending device occupy different resources, and the resources correspond to beams, and the receiving device includes: A receiving module for receiving multiple access signals; wherein one access signal includes one or more components, and when multiple components are included, at least one of the multiple components included in different access signals is composed of Some of them are different, and different access signals are transmitted on different resources, so that the receiving device can distinguish the access signals corresponding to different sending devices or beams according to different resources occupied by different access signals; an access module, configured to perform network access according to the received access signal; Wherein, different access signals are transmitted on different resources, including one or any combination of the following: Different access signals, or at least one component of different access signals, are sent at different time resources; Different access signals, or at least one component of different access signals, are sent on different frequency resources; Different access signals, or at least one component of different access signals, are sent in different space resources using different shaping matrices or different stations in the sending device; Different access signals, or at least one component of different access signals, are sent using different sequences, the sequences including a combination of one or more of a transmission sequence, a scrambling sequence, and a spreading sequence. 15. The device according to claim 14, wherein the access module is specifically configured to: After receiving an access signal, perform network access at least according to the currently received access signal, if the access is successful, end the process, otherwise receive the next access signal, wherein the network access is at least based on the currently received access signal. Performing network access by the incoming signal includes: performing network access only according to the currently received access signal, or performing network access based on the current and previously received access signals; or, After receiving multiple access signals, select one access signal, and perform network access according to the selected access signal; or, After receiving multiple access signals, the multiple access signals are combined, and network access is performed according to the combined signals. 16. The device according to claim 14, wherein the access module is specifically configured to: Use an access signal independently for network access; or, Use multiple access signals jointly for network access. 17. The apparatus of claim 14, further comprising: a processing module, configured to obtain transmission-related information from an access signal based on access to the network after accessing the network, where the transmission-related information includes channel bandwidth and/or starting position information; or, According to the characteristics of the access signal on which the network is accessed, and the correspondence between the characteristics of the access signal and the transmission-related information, the transmission-related information corresponding to the characteristics of the access signal on which the network is accessed is obtained. Transmission related information includes channel bandwidth and/or starting location information. 18. The device of claim 14, wherein the access signal comprises one or more components; At least one component of the at least two access signals is transmitted on different resources.

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