Communication method and apparatus

Abstract

The present application relates to the technical field of communication, and provides a communication method and apparatus, which are used to enhance a signal coverage capability of a network device. In the method, a first network device may, by means of configuring a correspondence relationship between time-frequency resources of a number M of sets of broadcast signaling and a number N of items of beam information, used to indicate a time-frequency resource of a second network device in each set of broadcast signaling, adjust a coverage range of the first network device using an item of beam information corresponding to a time-frequency resource, so that a signal coverage capability of the first network device can be enhanced, and a terminal device in a signal coverage blind spot can access the first network device.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on December 30, 2022, with application number 202211739370.8 and application name “Communication Method and Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to a communication method and device. Background Art

[0003] Currently, terminal devices can access network devices by receiving SSB beams sent by network devices. Network devices periodically scan beams. This means that while a network device may send a beam in one direction at a given moment, it can achieve coverage in all directions of a cell by sending beams in different directions at different times. This means that terminals in different areas of a cell can access the cell by receiving multiple beams sent in different directions by the network device. These beams can meet the access needs of terminals in different areas of the cell.

[0004] However, due to the limited number of beams and beam coverage range, some terminal devices are located in beam coverage blind spots, resulting in weak signal coverage capabilities of network equipment.

[0005] Summary of the Invention

[0006] Embodiments of the present application provide a communication method and apparatus for enhancing the signal coverage capability of network equipment.

[0007] To achieve the above objectives, this application adopts the following technical solutions:

[0008] In a first aspect, a communication method is provided, comprising: a first network device obtaining configuration information and sending the configuration information to a second network device. The configuration information indicates a correspondence between M sets of broadcast signaling time-frequency resources and N pieces of beam information, where M and N are integers greater than 1; each of the M sets of broadcast signaling time-frequency resources corresponds to one piece of the N beam information.

[0009] Based on the method described in the first aspect, it can be seen that the first network device configures the correspondence between M sets of broadcast signaling time-frequency resources and N beam information to instruct the second network device to use the corresponding beam information in each set of broadcast signaling time-frequency resources to adjust the coverage range of the first network device, thereby enhancing the coverage capability of the first network device.

[0010] In one possible design, any one of the M sets of broadcast signaling includes at least one signaling, and the at least one signaling is a signaling for providing access services to terminal devices. It will be appreciated that since the M sets of broadcast signaling correspond to N beam information, these N beam information can reflect the M sets of broadcast signaling to a maximum of N different areas, allowing terminal devices in these N different areas to access the first network device by receiving the broadcast signaling, thereby enhancing the signal coverage capability of the first network device.

[0011] In one possible design scheme, the configuration information includes time-frequency resource information, which is used to indicate the time-frequency resources of M sets of broadcast signaling. The second network device can directly and accurately obtain the specific time-frequency resources of each set of broadcast signaling through the time-frequency resource information, so that the corresponding beam information can be used on the time-frequency resources of each set of broadcast signaling to reflect each set of broadcast signaling to the corresponding area, so that all terminal devices in these areas can achieve access.

[0012] In one possible design, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the tth set of broadcast signaling among M sets of broadcast signaling. The time-frequency resource offset information is used to indicate the time-frequency resources of the uth set of broadcast signaling among the M sets of broadcast signaling, which is the time-frequency offset of the time-frequency resources of the tth set of broadcast signaling, where t and u are arbitrary integers ranging from 1 to M, and t and u are different. In other words, the second network device can directly indicate the time-frequency resources of some sets of broadcast signaling among the M sets of broadcast signaling through the time-frequency resource information, and then indicate the time-frequency resources of the remaining sets of broadcast signaling among the M sets of broadcast signaling through the time-frequency resource offset information. Compared with the aforementioned method of directly indicating the time-frequency resources of each set of broadcast signaling, this can save communication overhead.

[0013] In one possible design, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the p-th signaling in the x-th set of broadcast signaling among M sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the q-th broadcast signaling in the x-th set of broadcast signaling, which is the time-frequency offset of the time-frequency resources of the p-th broadcast signaling, where x is any integer from 1 to M, and p and q are integers with different values. In other words, the second network device can directly indicate the time-frequency resources of some signaling in the x-th set of broadcast signaling through the time-frequency resource information, and then indicate the time-frequency resources of the remaining signaling in the x-th set of broadcast signaling through the time-frequency resource offset information. Compared with the above-mentioned method of directly indicating the time-frequency resources of each set of broadcast signaling, this can save communication overhead.

[0014] Optionally, the time-frequency resource information includes at least one of the following: a bitmap, or an index of at least one signaling in M ​​sets of broadcast signaling. That is, the time-frequency resource information can take values ​​for different bits of the bitmap to obtain accurate time-frequency resources. The time-frequency resource information can also be indicated by the index of at least one signaling in each set of broadcast signaling, for example, the synchronization information block SSB index. The SSB index is associated with the time-frequency resource corresponding to the beam pointing to the second network device. The second network device can obtain the time-frequency resource of the SSB through the SSB index, thereby accurately indicating the time-frequency resource corresponding to each signaling.

[0015] Optionally, the time-frequency resource offset information includes at least one of the following: a bitmap, or an index of at least one signaling in M ​​sets of broadcast signaling. That is, the time-frequency resource information can be taken as values ​​through different bits of the bitmap to obtain an accurate time-frequency resource offset position. The time-frequency resource offset information can also be indicated by the index of at least one signaling in each set of broadcast signaling, and then the index of at least one signaling in each set of broadcast signaling can be used to indicate a certain set of broadcast signaling relative to other sets of broadcast signaling, or a signaling in a certain set of broadcast signaling relative to other signaling in the set of broadcast signaling, so as to ensure the accuracy of time-frequency resources.

[0016] In one possible design scheme, any one of the M sets of broadcast signaling includes at least one of the following items: synchronization information block SSB, system information block SIB, master information block MIB, bearer control resource set CORESET0, message Msg1, message Msg2, message Msg3, message Msg4, or paging Paging, that is, it is carried in existing signaling to reduce implementation difficulty, or it can also be carried in new signaling to improve implementation flexibility, without limitation.

[0017] In one possible design, the N beam information items are associated with at least one of the following: the location of the first network device, the location of the second network device, the beam information of the first network device, or the beam information of the second network device. It is understood that, if the location and beam information of the first network device are determined, and multiple second network devices are at the same location and have the same beam information, and the first network device needs to serve the same area, then the reflection weights of the multiple second network devices can be the same. In other words, if multiple second network devices are determined to be at the same location, then it can be determined that the multiple second network devices use the same beam information, which can reduce the process of selecting beam information for the second network devices and thus improve communication efficiency.

[0018] Optionally, the method described in the first aspect further includes: the first network device obtains the energy of the downlink signal fed back by the terminal device, and when the energy of the downlink signal is less than a preset energy threshold, the first network device instructs the second network device to use the second beam information among the N beam information. The downlink signal is a signal received by the terminal device when the second network device uses the first beam information among the N beam information, and the downlink signal is used by the terminal device to perform measurement and / or access; the second beam information is different from the first beam information. It can be understood that the first network device can receive the energy of the downlink signal reported by the terminal device. When the energy of the received downlink signal is less than the preset energy threshold, the downlink signal cannot meet the requirements of the terminal device to perform channel measurement and access. At this time, the first network device can instruct the second network device to update the first beam information to achieve dynamic adjustment of the beam information, thereby improving the efficiency and reliability of the terminal device accessing the first network device.

[0019] Optionally, the downlink signal is carried in at least one of the following items: a synchronization signal block SSB, or a signaling status information reference signal CSI-RS, that is, carried in an existing signal element to reduce the difficulty of implementation, or it can also be carried in a new signal element to improve the flexibility of implementation, without limitation.

[0020] Optionally, the method of the first aspect further includes: the first network device obtaining the number of uplink signals received from the terminal device within a preset time interval, and when the number of uplink signals is less than a preset signal number threshold, the first network device instructing the second network device to use the second beam information among the N beam information. The uplink signal is a signal received by the first network when the second network device uses the first beam information among the N beam information, and the uplink signal is used by the terminal device to request access to the first network device; the second beam information is different from the first beam information. It is understood that if the quality of the signal sent or reflected by the second network device is poor, it will affect the normal access of the terminal device to the first network device, resulting in the inability of terminal devices that should have normally accessed the first network device to access, thereby reducing the overall number of terminal devices that can access the first network device. That is, the number of uplink signals received by the first network device can reflect the quality of the signal sent or reflected by the second network device. Therefore, when the number of uplink signals received by the first network device is less than the preset signal number threshold, the first network device can instruct the second network device to update the first beam information to meet the access requirements of the terminal device, thereby improving the efficiency and reliability of the terminal device's access to the first network device.

[0021] Optionally, the method described in the first aspect further includes: the first network device obtaining energy of an uplink signal received from the terminal device, and when the energy of the uplink signal is less than a preset energy threshold, the first network device instructing the second network device to use second beam information from the N beam information. The uplink signal is a signal received by the first network device when the second network device uses the first beam information from the N beam information, and the uplink signal is used by the terminal device to request access to the first network device; the second beam information is different from the first beam information. It is understood that if the quality of the signal reflected by the second network device is poor, it will affect the terminal's normal access to the first network device, resulting in the terminal being unable to access the first network device normally. That is, the energy of the uplink signal received by the first network device can reflect the quality of the signal sent or reflected by the second network device. Therefore, when the number of uplink signals received by the first network device is less than a preset signal number threshold, the first network device can instruct the second network device to update the first beam information to meet the terminal device's access requirements, thereby improving the efficiency and reliability of the terminal device's access to the first network device.

[0022] Optionally, the uplink signal is carried in at least one of the following items: a physical random access channel PRACH, a reference signal SRS, or a physical uplink shared channel PUSCH, that is, carried in an existing cell or channel to reduce the difficulty of implementation, or can also be carried in a new cell or channel to improve the flexibility of implementation, without limitation.

[0023] Optionally, the method described in the first aspect further includes: the first network device sending power scaling information to the terminal device. The power scaling information is used to indicate to the terminal device a degree of attenuation of transmit power on a data channel having the same time domain resources as the M sets of broadcast signaling. The data channel is a channel used for data transmission after the terminal device accesses the first network device. In other words, the terminal device can ensure normal reception and demodulation of downlink signals based on the power scaling information, thereby avoiding misdemodulation or misinterpretation.

[0024] Optionally, the power scaling information is determined by the frequency domain bandwidth occupied by M sets of broadcast signaling and the frequency domain bandwidth occupied by the data channel having the same time domain resources as the M sets of broadcast signaling. It can be understood that the power scaling information is effective on multiple time-frequency resources. After the power scaling information is associated with the frequency domain bandwidth occupied by M sets of broadcast signaling and the frequency domain bandwidth occupied by the data channel having the same time domain resources as the M sets of broadcast signaling, time domain resources with the same bandwidth relationship can correspond to the same power scaling information. In this case, for time domain resources with the same bandwidth relationship, the first network device only needs to feed back one power scaling information to the second terminal device, without having to notify the second terminal device separately on each time domain resource, thereby reducing communication overhead.

[0025] In one possible design scheme, the configuration information can be carried in at least one of the following: downlink control information DCI, radio control information RRC, media control intervention control-control unit MAC-CE, or physical downlink shared channel PDSCH, that is, carried in existing information elements or channels to reduce the difficulty of implementation, or can also be carried in new information elements or channels to improve implementation flexibility, without limitation.

[0026] In a second aspect, a communication method is provided. The method includes: a second network device receiving configuration information from a first network device, and determining N corresponding beam information from M time-frequency resources based on the configuration information. The configuration information indicates the correspondence between M sets of broadcast signaling time-frequency resources and the N beam information, where M and N are integers greater than 1; each of the M sets of broadcast signaling time-frequency resources corresponds to one of the N beam information.

[0027] In one possible design, any one of the M sets of broadcast signaling includes at least one signaling, and the at least one signaling is a signaling for providing access services to terminal devices.

[0028] In one possible design scheme, the configuration information includes time-frequency resource information, and the time-frequency resource information is used to indicate the time-frequency resources of M sets of broadcast signaling.

[0029] In one possible design scheme, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the tth set of broadcast signaling in M ​​sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the uth set of broadcast signaling in M ​​sets of broadcast signaling, which is the time-frequency offset compared to the time-frequency resources of the tth set of broadcast signaling, where t and u are arbitrary integers ranging from 1 to M, and t and u are different.

[0030] In one possible design scheme, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the p-th signaling in the x-th set of broadcast signaling in M ​​sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the q-th broadcast signaling in the x-th set of broadcast signaling, which is the time-frequency offset of the time-frequency resources compared to the p-th broadcast signaling, where x is any integer from 1 to M, and p and q are integers with different values.

[0031] Optionally, the time-frequency resource information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

[0032] Optionally, the time-frequency resource offset information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

[0033] In one possible design, any one of the M sets of broadcast signaling includes at least one of the following: a synchronization information block (SSB), a system information block (SIB), a master information block (MIB), a bearer control resource set (CORESET0), a message (Msg1), a message (Msg2), a message (Msg3), a message (Msg4), or a paging message (Paging).

[0034] In one possible design, the N pieces of beam information are associated with at least one of the following: a position of the first network device, a position of the second network device, front information of the first network device, or front information of the second network device.

[0035] In one possible design, the configuration information may be carried in at least one of the following: downlink control information DCI, radio control information RRC, media control access control-element MAC-CE, or physical downlink shared channel PDSCH.

[0036] In addition, the technical effects of the communication method described in the second aspect can refer to the technical effects of the communication method described in the first aspect, and will not be repeated here.

[0037] In a third aspect, a communication method is provided. The method includes: a terminal device receiving transmit power scaling information from a first network device; wherein the power scaling information is used to indicate to a second terminal device a degree of attenuation of transmit power on a data channel having the same time domain resources as M sets of broadcast signaling, where the data channel is a channel used for data transmission after the terminal device accesses the first network device.

[0038] A fourth aspect provides a communication method. The method includes: a first network device obtains configuration information and sends the configuration information to a second network device; the second network device receives the configuration information and determines N corresponding beam information from M time-frequency resources based on the configuration information. The configuration information indicates the correspondence between M sets of broadcast signaling time-frequency resources and N beam information, where M and N are integers greater than 1; each of the M sets of broadcast signaling time-frequency resources corresponds to one of the N beam information.

[0039] In one possible design, any one of the M sets of broadcast signaling includes at least one signaling, and the at least one signaling is a signaling for providing access services to terminal devices.

[0040] In one possible design scheme, the configuration information includes time-frequency resource information, and the time-frequency resource information is used to indicate the time-frequency resources of M sets of broadcast signaling.

[0041] In one possible design scheme, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the tth set of broadcast signaling in M ​​sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the uth set of broadcast signaling in M ​​sets of broadcast signaling, which is the time-frequency offset compared to the time-frequency resources of the tth set of broadcast signaling, where t and u are arbitrary integers ranging from 1 to M, and t and u are different.

[0042] In one possible design scheme, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the p-th signaling in the x-th set of broadcast signaling in M ​​sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the q-th broadcast signaling in the x-th set of broadcast signaling, which is the time-frequency offset of the time-frequency resources compared to the p-th broadcast signaling, where x is any integer from 1 to M, and p and q are integers with different values.

[0043] Optionally, the time-frequency resource information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

[0044] Optionally, the time-frequency resource offset information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

[0045] In one possible design scheme, any one of the M sets of broadcast signaling includes at least one of the following: synchronization information block SSB, system information block SIB, master information block MIB, bearer control resource set CORESET0, message Msg1, message Msg2, message Msg3, message Msg4, or paging Paging.

[0046] In one possible design, the N pieces of beam information are associated with at least one of the following: a position of the first network device, a position of the second network device, front information of the first network device, or front information of the second network device.

[0047] Optionally, the method described in the first aspect further includes: the first network device obtaining energy of a downlink signal fed back by the terminal device, and when the energy of the downlink signal is less than a preset energy threshold, the first network device instructing the second network device to use second beam information among the N beam information. The downlink signal is a signal received by the terminal device when the second network device uses the first beam information among the N beam information, and the downlink signal is used by the terminal device to perform measurement and / or access; the second beam information is different from the first beam information.

[0048] Optionally, the downlink signal is carried in at least one of the following: a synchronization signal block SSB, or a signaling state information reference signal CSI-RS.

[0049] Optionally, the method described in the first aspect further includes: the first network device obtaining the number of uplink signals received from the terminal device within a preset time interval, and when the number of uplink signals from the terminal device is less than a preset signal number threshold, the first network device instructing the second network device to use the second beam information among the N beam information. The uplink signal is a signal received by the first network when the second network device uses the first beam information among the N beam information, and the uplink signal is used by the terminal device to request access to the first network device; the second beam information is different from the first beam information.

[0050] Optionally, the method described in the first aspect further includes: the first network device obtaining energy of an uplink signal received from the terminal device, and when the energy of the uplink signal is less than a preset energy threshold, the first network device instructing the second network device to use second beam information among the N beam information. The uplink signal is a signal received by the first network device when the second network device uses the first beam information among the N beam information, and the uplink signal is used by the terminal device to request access to the first network device; the second beam information is different from the first beam information.

[0051] Optionally, the uplink signal is carried in at least one of the following: a physical random access channel PRACH, a reference signal SRS, or a physical uplink shared channel PUSCH.

[0052] Optionally, the method described in the first aspect further includes: the first network device sending power scaling information to the terminal device. The power scaling information is used to indicate to the terminal device a degree of attenuation of transmit power of a data channel having the same time domain resources as the M sets of broadcast signaling, where the data channel is a channel used for data transmission after the terminal device accesses the first network device.

[0053] Optionally, the power scaling information is determined by the frequency domain bandwidth occupied by the M sets of broadcast signaling and the frequency domain bandwidth occupied by the data channel having the same time domain resources as the M sets of broadcast signaling.

[0054] In one possible design, the configuration information may be carried in at least one of the following: downlink control information DCI, radio control information RRC, media control access control-element MAC-CE, or physical downlink shared channel PDSCH.

[0055] In a fifth aspect, a communication device is provided. The device includes a transceiver module and a processing module. The transceiver module is configured to obtain configuration information. The transceiver module is configured to send the configuration information to a second network device. The configuration information indicates a correspondence between M sets of broadcast signaling time-frequency resources and N beam information, where M and N are integers greater than 1; each of the M sets of broadcast signaling time-frequency resources corresponds to one of the N beam information.

[0056] In one possible design, any one of the M sets of broadcast signaling includes at least one signaling, and the at least one signaling is a signaling for providing access services to terminal devices.

[0057] In one possible design scheme, the configuration information includes time-frequency resource information, and the time-frequency resource information is used to indicate the time-frequency resources of M sets of broadcast signaling.

[0058] In one possible design scheme, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the tth set of broadcast signaling in M ​​sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the uth set of broadcast signaling in M ​​sets of broadcast signaling, which is the time-frequency offset compared to the time-frequency resources of the tth set of broadcast signaling, where t and u are arbitrary integers ranging from 1 to M, and t and u are different.

[0059] In one possible design scheme, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the p-th signaling in the x-th set of broadcast signaling in M ​​sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the q-th broadcast signaling in the x-th set of broadcast signaling, which is the time-frequency offset of the time-frequency resources compared to the p-th broadcast signaling, where x is any integer from 1 to M, and p and q are integers with different values.

[0060] Optionally, the time-frequency resource information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

[0061] Optionally, the time-frequency resource offset information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

[0062] In one possible design scheme, any one of the M sets of broadcast signaling includes at least one of the following: synchronization information block SSB, system information block SIB, master information block MIB, bearer control resource set CORESET0, message Msg1, message Msg2, message Msg3, message Msg4, or paging Paging.

[0063] In one possible design, the N pieces of beam information are associated with at least one of the following: a position of the first network device, a position of the second network device, front information of the first network device, or front information of the second network device.

[0064] Optionally, the transceiver module is further configured to obtain energy of a downlink signal fed back by the terminal device. When the energy of the downlink signal is less than a preset energy threshold, the first network device instructs the second network device to use second beam information among the N beam information. The downlink signal is a signal received by the terminal device when the second network device uses the first beam information among the N beam information, and the downlink signal is used by the terminal device to perform measurement and / or access. The second beam information is different from the first beam information.

[0065] Optionally, the downlink signal is carried in at least one of the following: a synchronization signal block SSB, or a signaling state information reference signal CSI-RS.

[0066] Optionally, the processing module is further configured to obtain a number of uplink signals received from the terminal device within a preset time interval, and when the number of uplink signals from the terminal device is less than a preset signal number threshold, the first network device instructs the second network device to use second beam information among the N beam information. The uplink signal is a signal received by the first network when the second network device uses the first beam information among the N beam information, and the uplink signal is used to request access to the first network device; the second beam information is different from the first beam information.

[0067] Optionally, the processing module is further configured to obtain energy of an uplink signal received from the terminal device, and when the energy of the uplink signal is less than a preset energy threshold, the first network device instructs the second network device to use second beam information among the N beam information. The uplink signal is a signal received by the first network device when the second network device uses the first beam information among the N beam information, and the uplink signal is used by the terminal device to request access to the first network device; the second beam information is different from the first beam information.

[0068] Optionally, the uplink signal is carried in at least one of the following: a physical random access channel PRACH, a reference signal SRS, or a physical uplink shared channel PUSCH.

[0069] Optionally, the transceiver module is further configured to send power scaling information to the terminal device. The power scaling information is used to indicate to the terminal device a degree of attenuation of the transmit power of a data channel having the same time domain resources as the M sets of broadcast signaling, where the data channel is a channel used for data transmission after the terminal device accesses the first network device.

[0070] The power scaling information is determined by the frequency domain bandwidth occupied by the M sets of broadcast signaling and the frequency domain bandwidth occupied by the data channel having the same time domain resources as the M sets of broadcast signaling.

[0071] In one possible design, the configuration information may be carried in at least one of the following: downlink control information DCI, radio control information RRC, media control access control-element MAC-CE, or physical downlink shared channel PDSCH.

[0072] Optionally, the transceiver module may include a sending module and a receiving module, wherein the sending module is used to implement the sending function of the communication device described in the fifth aspect, and the receiving module is used to implement the receiving function of the communication device described in the fifth aspect.

[0073] Optionally, the transceiver module may be a transceiver, and the processing module may be a processor.

[0074] Optionally, the communication device described in the fifth aspect may further include a storage module, wherein the storage module stores a program or instruction. When the processing module executes the program or instruction, the communication device may execute the communication method described in the second aspect.

[0075] It is understood that the communication device described in the fifth aspect can be a network device, such as a network device, or a chip (system) or other component or assembly that can be set in a network device, or a device that includes a network device, and this application does not limit this. It is understood that if the communication device is a chip (system) set in a device, the transceiver module can be the input / output interface of the chip (system), such as an input / output circuit, pin, etc.

[0076] In addition, the technical effects of the communication device described in the fifth aspect can refer to the technical effects of the communication method described in the first aspect, and will not be repeated here.

[0077] In a sixth aspect, a communication device is provided. The communication device includes: a transceiver module and a processing module. The transceiver module is configured to receive configuration information from a first network device. The processing module is configured to determine N corresponding beam information in M ​​time-frequency resources based on the configuration information. The configuration information is used to indicate the correspondence between the time-frequency resource locations of M sets of downlink broadcast signaling and the N beam information, where M and N are integers greater than 1; each of the M sets of time-frequency resource locations of downlink broadcast signaling corresponds to one of the N beam information.

[0078] In one possible design, any one of the M sets of downlink broadcast signaling includes at least one signaling, and the at least one signaling is a signaling for providing access services for the terminal device.

[0079] In one possible design scheme, the configuration information includes time-frequency resource location information, and the time-frequency resource location information is used to indicate the time-frequency resource locations of M sets of downlink broadcast signaling.

[0080] In one possible design scheme, the configuration information includes time-frequency resource location information and time-frequency resource location offset information. The time-frequency resource location information is used to indicate the time-frequency resource location of the tth set of downlink broadcast signaling in M ​​sets of downlink broadcast signaling; the time-frequency resource location offset information is used to indicate the time-frequency resource location of the uth set of downlink broadcast signaling in M ​​sets of downlink broadcast signaling, which is the time-frequency offset compared to the time-frequency resource location of the tth set of downlink broadcast signaling, where t and u are arbitrary integers ranging from 1 to M, and t and u are different.

[0081] In one possible design scheme, the configuration information includes time-frequency resource location information and time-frequency resource location offset information. The time-frequency resource location information is used to indicate the time-frequency resource location of the p-th signaling in the x-th set of downlink broadcast signaling in M ​​sets of downlink broadcast signaling; the time-frequency resource location offset information is used to indicate the time-frequency resource location of the q-th downlink broadcast signaling in the x-th set of downlink broadcast signaling, which is the time-frequency offset compared to the time-frequency resource location of the p-th downlink broadcast signaling, where x is any integer from 1 to M, and p and q are integers with different values.

[0082] Optionally, the time-frequency resource location information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of downlink broadcast signaling.

[0083] Optionally, the time-frequency resource position offset information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of downlink broadcast signaling.

[0084] In one possible design, any one of the M sets of downlink broadcast signaling includes at least one of the following: a synchronization information block (SSB), a system information block (SIB), a master information block (MIB), a bearer control resource set (CORESET0), a message (Msg1), a message (Msg2), a message (Msg3), a message (Msg4), or a paging message (Paging).

[0085] In one possible design, the N pieces of beam information are associated with at least one of the following: a position of the first network device, a position of the second network device, front information of the first network device, or front information of the second network device.

[0086] In one possible design, the configuration information may be carried in at least one of the following: downlink control information DCI, radio control information RRC, media control access control-element MAC-CE, or physical downlink shared channel PDSCH.

[0087] Optionally, the transceiver module may include a sending module and a receiving module, wherein the sending module is used to implement the sending function of the communication device described in the sixth aspect, and the receiving module is used to implement the receiving function of the communication device described in the sixth aspect.

[0088] Optionally, the transceiver module may be a transceiver, and the processing module may be a processor.

[0089] Optionally, the communication device described in the sixth aspect may further include a storage module, wherein the storage module stores a program or instruction. When the processing module executes the program or instruction, the communication device can execute the communication method described in the second aspect.

[0090] It is understood that the communication device described in the sixth aspect can be a network device, such as a network device, or a chip (system) or other component or assembly that can be set in a network device, or a device that includes a network device, and this application does not limit this. It is understood that if the communication device is a chip (system) set in a device, the transceiver module can be the input / output interface of the chip (system), such as an input / output circuit, pin, etc.

[0091] In addition, the technical effects of the communication device described in the sixth aspect can refer to the technical effects of the communication method described in the second aspect, and will not be repeated here.

[0092] In a seventh aspect, a communication device is provided. The device includes a transceiver module, wherein the transceiver module is configured to receive transmit power scaling information from a first network device; wherein the power scaling information is configured to indicate, for the communication device described in the sixth aspect, a degree of transmit power attenuation of a data channel having the same time domain resource location as the M sets of downlink broadcast signaling, wherein the data channel is a channel used for data transmission after the communication device accesses the first network device.

[0093] Optionally, the transceiver module may include a sending module and a receiving module, wherein the sending module is used to implement the sending function of the communication device described in the seventh aspect, and the receiving module is used to implement the receiving function of the communication device described in the seventh aspect.

[0094] Optionally, the transceiver module may be a transceiver, and the processing module may be a processor.

[0095] Optionally, the communication device described in the seventh aspect may further include a storage module, wherein the storage module stores a program or instruction. When the processing module executes the program or instruction, the communication device can execute the communication method described in the third aspect.

[0096] It is understood that the communication device described in the seventh aspect can be a terminal, a chip (system) or other component or assembly that can be set in a terminal, or a device including a terminal, and this application does not limit this. It is understood that if the communication device is a chip (system) set in a device, the transceiver module can be the input / output interface of the chip (system), such as an input / output circuit, a pin, etc.

[0097] In addition, the technical effects of the communication device described in the seventh aspect can refer to the technical effects of the communication method described in the third aspect, and will not be repeated here.

[0098] In an eighth aspect, a communication device is provided, comprising: a processor configured to execute the communication method according to the first to fourth aspects.

[0099] In one possible design solution, the communication device described in the eighth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in the ninth aspect to communicate with other communication devices.

[0100] In one possible design, the communication device described in aspect 9 may further include a memory. The memory may be integrated with the processor or provided separately. The memory may be used to store computer programs and / or data involved in the communication methods described in aspects 1 to 4.

[0101] In the present application, the communication device described in the eighth aspect can be the network device described in any one of the first to fourth aspects, or a chip (system) or other parts or components that can be set in the network device, or a device that includes the network device.

[0102] In addition, the technical effects of the communication device described in the eighth aspect can refer to the technical effects of the communication method described in any one of the implementation methods in the first to fourth aspects, and will not be repeated here.

[0103] In a ninth aspect, a communication device is provided, comprising: a processor coupled to a memory, the processor configured to execute a computer program stored in the memory, so that the communication device performs the communication method according to the first or fourth aspect.

[0104] In one possible design solution, the communication device described in aspect 9 may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in aspect 9 to communicate with other communication devices.

[0105] In the present application, the communication device described in the ninth aspect can be the network device described in any one of the first to fourth aspects, or a chip (system) or other parts or components that can be set in the network device, or a device that includes the network device.

[0106] In addition, the technical effects of the communication device described in the ninth aspect can refer to the technical effects of the communication method described in any one of the implementation methods in the first to fourth aspects, and will not be repeated here.

[0107] In the tenth aspect, a communication device is provided, comprising: a processor and a memory; the memory is used to store a computer program, and when the processor executes the computer program, the communication device executes the communication method described in any one of the implementation methods of the first to fourth aspects.

[0108] In one possible design solution, the communication device described in the tenth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in the tenth aspect to communicate with other communication devices.

[0109] In the present application, the communication device described in the tenth aspect can be the network device described in any one of the first to fourth aspects, or a chip (system) or other parts or components that can be set in the network device, or a device that includes the network device.

[0110] In addition, the technical effects of the communication device described in the tenth aspect can refer to the technical effects of the method described in any one of the implementation methods of the first to fourth aspects, and will not be repeated here.

[0111] In an eleventh aspect, a communication system is provided, comprising: a first network device and a second network device, wherein the first network device and the second network device are configured to execute the method described in any one of the implementations of the first to fourth aspects.

[0112] In the twelfth aspect, a computer-readable storage medium is provided, comprising: a computer program or instructions; when the computer program or instructions are run on a computer, the computer executes the method described in any possible implementation method of the first to fourth aspects.

[0113] In the thirteenth aspect, a computer program product is provided, comprising a computer program or instructions, which, when executed on a computer, enables the computer to execute the method described in any one of the possible implementations of the first to fourth aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0114] FIG1 is a schematic diagram of beam scanning;

[0115] FIG2 is a schematic diagram of a network device directly transmitting an SSB beam;

[0116] FIG3 is a schematic diagram of a network device reflecting an SSB beam through an IRS;

[0117] FIG4 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0118] FIG5 is a flow chart of a communication method according to an embodiment of the present application;

[0119] FIG6 is a schematic diagram of a multi-peak beam pointing to a second network device according to an embodiment of the present application;

[0120] FIG7a is a first schematic diagram of a narrow beam directed toward a second network device according to an embodiment of the present application;

[0121] FIG7 b is a second schematic diagram of a narrow beam directed toward a second network device according to an embodiment of the present application;

[0122] FIG8 is a schematic diagram of a terminal accessing a base station according to an embodiment of the present application;

[0123] FIG9 is a first structural diagram of a communication device provided in an embodiment of the present application;

[0124] FIG10 is a second structural diagram of the communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0125] For ease of understanding, the technical terms involved in the embodiments of this application are first introduced below.

[0126] 1. Beam:

[0127] Beamforming is a special, directional transmission or reception effect created by the antenna array of a transmitter or receiver on a network device or terminal. It's similar to the beam formed by a flashlight that focuses light in a single direction. Transmitting and receiving signals using beamforming can effectively increase signal transmission distance.

[0128] The beam can be a wide beam, a narrow beam, or other types of beams. The beam forming technology can be beamforming technology or other technologies. The beamforming technology can specifically be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology.

[0129] Beams generally correspond to resources. For example, when performing beam measurement, the network device measures different beams using different resources, and the terminal feeds back the measured resource quality, allowing the network device to know the quality of the corresponding beam. During data transmission, beams can also be indicated by their corresponding resources. For example, the network device indicates a transmission configuration indication-state through the transmission configuration index (TCI) field in the downlink control information (DCI), and the terminal determines the beam corresponding to the reference resource based on the reference resource contained in the TCI-state.

[0130] In communication protocols, beams can be specifically characterized as digital beams, analog beams, spatial domain filters, spatial filters, spatial parameters, TCIs, TCI-states, etc. A beam used to transmit signals can be called a transmission beam (or Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, or a spatial transmission parameter. A beam used to receive signals can be called a reception beam (or Rx beam), a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, or a spatial reception parameter.

[0131] It can be understood that the embodiments of the present application uniformly use beams for description, but beams can be replaced by other equivalent concepts and are not limited to the concepts mentioned above.

[0132] 2. Resources:

[0133] In communication protocols, reference signals are configured as resources. Network devices assign each reference signal to a terminal as a resource. A resource is a configuration information unit that typically includes parameters related to the reference signal, such as the reference signal's time-frequency resource, number of ports, and time domain type (periodic, semi-static, or aperiodic).

[0134] Resources can be uplink signal resources or downlink signal resources. Uplink signals include but are not limited to sounding reference signals (SRS) and demodulation reference signals (DMRS). Downlink signals include but are not limited to channel state information reference signals (CSI-RS), cell specific reference signals (CS-RS), user equipment (UE) specific reference signals (US-RS), demodulation reference signals (DMRS), and synchronization system / physical broadcast channel block (SS / PBCH block). Among them, SS / PBCH block can be referred to as synchronization signal block (SSB).

[0135] Resources can be configured through radio resource control (RRC) messages. In terms of configuration structure, a resource is a data structure that includes relevant parameters of its corresponding uplink / downlink signal. For example, the type of uplink / downlink signal, the resource element that carries the uplink / downlink signal, the transmission time and period of the uplink / downlink signal, the number of ports used to send the uplink / downlink signal, etc. Each uplink / downlink signal resource has a unique identifier to identify the resource of the downlink signal. It is understandable that the resource identifier can also be called the resource identifier, and the embodiments of the present application do not impose any restrictions on this.

[0136] 3. Antenna panel:

[0137] An antenna panel can refer to either a network device's antenna panel or a terminal's antenna panel. An antenna panel typically contains one or more antennas, arranged in an antenna array for beamforming, thereby forming a simulated beam. The antenna array can generate simulated beams pointing in different directions. In other words, each antenna panel can form multiple simulated beams, and beam measurement can be used to determine the optimal simulated beam for that antenna panel. In communication protocols, antenna panels can be represented by "panel" or "panel index," or by other implicit representations. For example, the antenna panel can also be characterized by an antenna port (such as a CSI-RS port, an SRS port, a DMRS port, a phase tracking reference signal (PTRS) port, a cell reference signal (CRS) port, a tracking reference signal (TRS) port, or an SSB port, etc.) or an antenna port group, etc., or by a resource (such as a CSI-RS resource, an SRS resource, a DMRS resource, a PTRS resource, a CRS resource, a TRS resource, an SSB resource, etc.) or a resource group, or by a channel (such as a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), a PDSCH, a physical downlink control channel (PDCCH), or a physical broadcast channel (PDCCH)). channel, PBCH), etc.), can also be characterized by beams, such as quasi-co-location (QCL), TCI-state, spatial relationship, or a certain identifier configured in QCL, TCI-state, spatial relationship, can also be characterized by beam groups, such as QCL groups, TCI-state groups, or spatial relationship groups, etc., can also be characterized by a terminal capability parameter set reported by the terminal (there is a corresponding relationship between the terminal capability parameter set and the antenna panel). A terminal capability parameter set includes the relevant terminal capabilities corresponding to an antenna panel. For example, it includes the maximum number of transmission layers, the maximum number of SRS ports, and the maximum transmission power corresponding to an antenna panel. That is to say, the antenna panel mentioned in the embodiment of the present application can also be replaced by the above content.

[0138] The terminal can be equipped with multiple antenna panels. These antenna panels can be distributed in different locations and facing different directions. This ensures that no matter which direction the terminal is facing, at least one antenna panel is facing the network device and can transmit data with the network device.

[0139] Currently, when a UE is turned on, it needs to receive a beam from a network device, such as a static shared beam (SSB) of the network device, to perform synchronization and access procedures. If the UE does not receive the SSB beam, the UE cannot access the network device, that is, the UE has no network signal.

[0140] As shown in Figure 1, the network device can scan the SSB beam through a certain period. That is, the network device can send a beam in one direction at a certain moment, and send beams in different directions at multiple different moments to cover the directions required by the entire cell. Terminals located in different areas of the cell can receive several beams sent by the network device in different directions to achieve access. Beams in different directions can meet the access needs of terminals in different areas of the cell.

[0141] For example, assume that the existing beam scanning period is G. That is, within one scanning period, there are G time-frequency resources. This also means that the first network device must transmit a corresponding beam on each of the G time-frequency resources. Therefore, the first network device can sequentially transmit G beams on the G time-frequency resources. The G beams scanned during the period are denoted as G beam #1. Beam #1 mentioned below can be understood to refer to a beam within these G beams.

[0142] However, in order to ensure the coverage range of network equipment, network equipment uses a wide beam when performing beam scanning. Since the wide beam has a large coverage width but a short coverage distance, some terminal devices are located in the beam coverage blind area and are unable to access the network equipment.

[0143] An intelligent reflecting surface (IRS) is a surface composed of a large number of low-cost passive reflective elements that can reflect signals sent by network devices. Therefore, IRSs can be deployed in existing networks to reflect SSB beams, expanding the coverage of network devices' SSB beams and enhancing access to blind spots. As shown in Figures 2 and 3, when a network device periodically scans SSB#1a, the ath beam among G beams#1, adding an IRS between the network device and the UE significantly increases the signal coverage of SSB#1a compared to directly transmitting SSB#1a.

[0144] The IRS can reflect received SSB beams. However, the network device's SSB beam may not always point toward the IRS, or the SSB beam's coverage range may be short, resulting in less signal energy being received by the IRS. This results in poor SSB beam reflection. Furthermore, due to factors such as the IRS's installation location and SSB beam width, the SSB beam cannot be accurately pointed toward the IRS, limiting the network device's signal coverage. Furthermore, the IRS's reflection weight cannot be switched in real time, and its switching cannot be synchronized with the network device's beam scanning, further resulting in weak signal coverage.

[0145] In response to the above technical problems, the embodiments of the present application propose the following technical solutions to enhance the coverage capability of network equipment.

[0146] The technical solution in this application will be described below with reference to the accompanying drawings.

[0147] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as wireless fidelity (WiFi) systems, vehicle-to-everything (V2X) communication systems, device-to-device (D2D) communication systems, Internet of Vehicles communication systems, fourth-generation (4G) mobile communication systems, such as long-term evolution (LTE) systems, world-wide interoperability for microwave access (WiMAX) communication systems, 5G, such as new radio (NR) systems, and future communication systems.

[0148] This application will present various aspects, embodiments, or features in the context of systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that each system may include additional devices, components, modules, etc., and / or may not include all of the devices, components, modules, etc. discussed in conjunction with the figures. Furthermore, combinations of these aspects may also be used.

[0149] Additionally, in the embodiments of this application, words such as "exemplary" and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of the word "exemplary" is intended to present concepts in a concrete manner.

[0150] In the embodiments of the present application, "information", "signal", "message", "channel" and "signaling" can sometimes be used interchangeably. It should be noted that when the distinction between them is not emphasized, the meanings they intend to express are matched. "of", "corresponding, relevant" and "corresponding" can sometimes be used interchangeably. It should be noted that when the distinction between them is not emphasized, the meanings they intend to express are matched. In addition, the " / " mentioned in this application can be used to express an "or" relationship.

[0151] It is understood that in this application, "indication" can include direct indication, indirect indication, explicit indication, and implicit indication. When describing that a certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0152] In this application, the information indicated by the indication information is referred to as the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated, etc., or the information to be indicated can be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (such as specified in the protocol), thereby reducing the indication overhead to a certain extent.

[0153] The information to be indicated can be sent as a whole, or divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different. The specific sending method is not limited in this application. Among them, the sending period and / or sending time of these sub-information can be predefined, for example, predefined according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device. The network architecture and business scenarios described in the embodiments of the present application are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. It is known to those skilled in the art that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0154] To facilitate understanding of the embodiments of the present application, a communication system applicable to the embodiments of the present application is first described in detail using the communication system shown in Figure 4 as an example. For example, Figure 4 is a schematic diagram of the architecture of a communication system applicable to the communication method provided in the embodiments of the present application.

[0155] As shown in FIG4 , the communication system mainly includes: a first network device and a second network device.

[0156] The first network device may be a device that provides access for the terminal. For example, the first network device may be an access network (AN) device, or may be called a radio access network (RAN) device. The RAN device may provide access functions for the terminal, and is responsible for functions such as radio resource management, quality of service (QoS) management, data compression and encryption on the air interface side. The RAN device may include 5G, such as a gNB in ​​an NR system, or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB, a transmission point (TRP or transmission point, TP) or a transmission measurement function (TMF), such as a baseband unit (BBU), a centralized unit (CU) or a distributed unit (DU), an RSU with base station functions, or a wired access gateway, or a core network element of a 5G system. Alternatively, the RAN device may also include an access point (AP) in a wireless fidelity (WiFi) system, a wireless relay node, a wireless backhaul node, various forms of macro base stations, micro base stations (also known as small stations), relay stations, access points, wearable devices, vehicle-mounted devices, etc. Alternatively, the RAN device may also include a next-generation mobile communication system, such as 6G access network equipment, such as a 6G base station, or in the next-generation mobile communication system, the network device may also have other naming methods, all of which are included in the protection scope of the embodiments of this application, and this application does not impose any limitations on this.

[0157] The second network device can be the above-mentioned IRS. It can be understood that the second network device can also be other network devices, such as a base station with an IRS, or a base station or network element with an IRS function, a base station or other network element that implements a signal reflection function, or other network elements that receive network device indication information and complete phase adjustment, processing, and sending. It can also be replaced with any possible name without limitation.

[0158] In this communication system, the first network device configures the correspondence between M sets of broadcast signaling time-frequency resources and N beam information to instruct the second network device to use the corresponding beam information in each set of broadcast signaling time-frequency resources to adjust the coverage range of the first network device, thereby enhancing the coverage capability of the first network device and allowing terminals in signal coverage blind spots to access the first network device.

[0159] It can be understood that FIG4 is only a simplified schematic diagram for ease of understanding, and the communication system may also include other network devices, which are not shown in FIG4 .

[0160] For ease of understanding, the communication method provided in the embodiment of the present application will be described in detail below with reference to FIG5 .

[0161] 5 is a flow chart of a communication method according to an embodiment of the present application. The method can be applied to the communication between the first network device and the second network device in the above communication system.

[0162] Specifically, as shown in FIG5 , the process of the communication method is as follows:

[0163] S501: A first network device obtains configuration information.

[0164] The configuration information may be used to indicate the correspondence between the time-frequency resources of M sets of broadcast signaling and N beam information, where M and N are integers greater than 1.

[0165] M sets of broadcast signaling are signalings that provide access services to terminals. Each set of broadcast signaling may include at least one signaling, for example, a synchronization signal / physical broadcast channel block (SSB), a master information block (MIB), a system information block (SIB), a control resource set (CORESET) 0, message 1 (Msg1), message 2 (Msg2), message 3 (Msg3), message 4 (Msg4), and or paging (Paging).

[0166] The synchronization signal block (SSB) includes the primary synchronization signal (PSS), the secondary synchronization signal (SSS), and the physical broadcast channel (PBCH). The PSS is used for downlink synchronization, including frequency, symbol, and frame synchronization; the SSS is used to obtain the current cell identifier; and the PBCH is used to receive and decode system information on the broadcast channel (BCH) and establish normal communication with the cell.

[0167] MIB: includes common subcarrier spacing (subCarrierSpacingCommon), SSB subcarrier offset (subcarrierOffset), the time domain position of the physical downlink shared channel PDSCH carrying the system information block SIB (dmrs-TypeA-Position), the configuration information of the physical downlink control channel PDCCH related to the SIB (PDCCH-ConfigSIB), or reserved (spare) bits.

[0168] The SIB may include SIB1. SIB1 includes parameters used to determine whether a cell is suitable for cell selection, as well as time domain scheduling information of other SIBs.

[0169] CORESET0: It is a set of physical resources and a set of DCIs used to carry SIBs.

[0170] Msg1: Used to send Preamble codes. For example, the eNB sends random access parameters (RACH-ConfigCommon) to UEs in the cell through PBCH, telling all UEs information such as the grouping of access preamble codes, the threshold of message 3 (Msg3) size, and power configuration. The eNB can select some or all of the 64 Preamble codes for competitive access. Msg1 is carried on PRACH.

[0171] Msg2: contains the uplink transmission timing advance, uplink resources allocated for Msg3, cell radio network temporary identifier (C-RNTI), etc.

[0172] Msg3: used for the first scheduled transmission. After receiving Msg2, the UE transmits Msg3 on its allocated uplink resources.

[0173] Msg4: used for contention resolution, including two situations: initial access and connection reestablishment scenarios, and handover and uplink and downlink data arrival scenarios.

[0174] Paging: The process initiated by a network device to search for a terminal device.

[0175] The time-frequency resources of the M sets of broadcast signaling correspond to the M beams of the second network device. That is, on the time-frequency resources of the M sets of broadcast signaling, there are M beams directed to the second network device. The M beams can be the same beam or different beams. The M beams can be narrow beams or wide beams, without limitation.

[0176] Regarding the generation of M beams, as described in the aforementioned technical terminology, due to factors such as the installation location and beam width of the second network device (i.e., the IRS), the beam cannot accurately point toward the second network device, limiting the ability of the first network device to enhance signal coverage. Therefore, embodiments of the present application can enhance the signal coverage of the first network device by using two methods: generating a narrow beam directed toward the second network device while maintaining the existing beam, and increasing the number of directional beams on top of the existing beam to generate a narrow beam specifically directed toward the second network device.

[0177] The following describes these two methods in detail:

[0178] Method 1: Based on beam #1, generate M beams #2 that are directed toward the second network device.

[0179] The M beams #2 have the same or similar gains as beam #1 in terms of beam pointing, and have another peak pointing to the second network device. That is, the M beams #2 are multi-peak beams. The beam #2 mentioned below can be understood as a beam in the M beams #2 of the multi-peak beam in method 1.

[0180] For example, as shown in Figure 6, an existing beam, such as the SSB beam, has a scanning period of 7. This means that the base station must sequentially transmit seven beams on seven time-frequency resources. These seven beams can be denoted as SSB#1a, SSB#1b, SSB#1c, SSB#1d, SSB#1e, SSB#1f, and SSB#1g. The time-frequency resource corresponding to SSB#1a is a1, the time-frequency resource corresponding to SSB#1b is b1, the time-frequency resource corresponding to SSB#1c is c1, the time-frequency resource corresponding to SSB#1d is d1, the time-frequency resource corresponding to SSB#1e is e1, the time-frequency resource corresponding to SSB#1f is f1, and the time-frequency resource corresponding to SSB#1g is g1. If none of the beams on these seven time-frequency resources are accurately directed toward the IRS, the base station can generate beam SSB#2, which is SSB#2a on the ath time-frequency resource. It can be understood that the SSB#2 has a narrow beam directed toward the IRS on the above 7 time-frequency resources, thereby increasing the energy of the SSB beam received by the second network device.

[0181] The process of the first network device generating the weights of the M beams #2 can be determined by the following steps:

[0182] (1) Assume that the beam weight of the i-th beam #1i among the G beams #1 of the first network device is In addition, the beam weight of the i-th beam #2i among the M beams #2 generated is

[0183] (2)Judgment Is it true? γ is the preset threshold value, w IRS,n is the nth beam directed to the second network device, and P is the number of beams directed to the second network device.

[0184] in:

[0185] In formulas (1)-(3), N H and N V Respectively represent the number of ports in the horizontal and vertical directions of the antenna panel of the first network device. If the antenna panel of the first network is a dual-polarized antenna, then N H N V =N T , N Tis the number of receiving ports of the first network device, O H and O V They respectively represent the oversampling multiples of the horizontal beam and the vertical beam of the antenna panel of the first network device.

[0186] and It can be obtained by the following formulas (4)-(6):

[0187] In formulas (4)-(6), H n represents the uplink channel from the nth communication module of the second network device to the first network device, I represents interference, E represents noise, ρ represents the uplink power factor, and K represents the number of subcarriers for sending SRS.

[0188] like If the two beams are in the same direction, it means that the two beams have the same beam weight. In this case, it means that the second network device is deployed in the direction pointed by beam #1i. At this time, the first network device does not need to be based on w IRS，n Generate multi-peak beams.

[0189] like If not established, then for all w IRS,n and The sum is calculated as shown in the following formula (7):

[0190] (3) Yes Perform normalization processing, as shown in the following formula (8):

[0191] The formula (8) shows That is the beam weight of beam #2i. At this time, the first network device can use Send a beam directed toward the second network device. Similarly, the beam weights of other multi-peak beams in the M beams #2 can be calculated according to the above process, which will not be described in detail here.

[0192] In the embodiment of the present application, each IRS corresponds to one directional beam, and each IRS may also have multiple directional beams, without limitation.

[0193] Method 2: Based on the existing SSB beam, M beams directed toward the second network device are added.

[0194] The existing SSB beams can be the G beams periodically scanned above, namely, G beams #1. The M beams added by the first network device and directed toward the second network device can be M beams added on M time-frequency resources other than the G time-frequency resources and directed toward the second network device. These M beams can be referred to as M beams #3. Beam #3 mentioned below can be understood to refer to a beam among the M beams in method 2.

[0195] For example, as shown in Figures 7a and 7b, the scanning period of an existing beam, such as the SSB beam, is 7. This means that the base station must transmit seven beams sequentially across seven time-frequency resources. These seven beams can be denoted as SSB#1a, SSB#1b, SSB#1c, SSB#1d, SSB#1e, SSB#1f, and SSB#1g. The time-frequency resource corresponding to SSB#1a is a1, the time-frequency resource corresponding to SSB#1b is b1, the time-frequency resource corresponding to SSB#1c is c1, the time-frequency resource corresponding to SSB#1d is d1, the time-frequency resource corresponding to SSB#1e is e1, the time-frequency resource corresponding to SSB#1f is f1, and the time-frequency resource corresponding to SSB#1g is g1. The base station can add two beams directed toward the IRS, denoted as SSB#3j and SSB#3k. The time-frequency resource corresponding to SSB#3j is j1, and the time-frequency resource corresponding to SSB#3k is k1. That is, on the time-frequency resource j1, there is SSB#3j directed toward the IRS; on the time-frequency resource k1, there is SSB#3k directed toward the IRS.

[0196] The process of the first network device generating the weights of the M beams #3 can be determined by the following steps:

[0197] Assume that the beam weight of the Oth beam #3O among the M beams #3 is It can be determined by the following formula (9):

[0198] In formula (9), p i,j and Y n The calculation method of can refer to the relevant introduction in the above method 1, which will not be repeated here.

[0199] It can be understood that in the above method 1, the broadcast signaling, the time-frequency resources of the 7 broadcast signaling correspond to the time-frequency resources of SSB#1a, SSB#1b, SSB#1c, SSB#1d, SSB#1e, SSB#1f and SSB#1g respectively; in method 2, the time-frequency resources of the 2 broadcast signaling correspond to the time-frequency resources of SSB#3j and SSB#3k respectively.

[0200] Optionally, when the time-frequency resources occupied by the periodically scanned beam are indicated by relative time-frequency resources, the time-frequency resources are represented in the time domain by time units, such as frames, subframes, time slots, and symbols. Then, the same beam index of the first network device occupies the same time unit in each scanning cycle. For example, the time-frequency resources occupied by SSB#1a of the first network device in cycle 1 are time slots 1 and time slots 3, and the time-frequency resources occupied by SSB#1a in cycle 2 are also time slots 1 and time slots 3. In this case, the time-frequency resources corresponding to the same beam of the first network device remain unchanged in different scanning cycles.

[0201] When the time-frequency resources occupied by the periodically scanned beam are indicated by absolute time-frequency resources, for example, the time-frequency resource corresponding to SSB#1a of the first network device in cycle 1 is time A, and the time-frequency resource corresponding to SSB#1a in cycle 2 is time B. In this case, the time-frequency resources corresponding to the same beam of the first network device change in different scanning cycles.

[0202] The time-frequency resources of M sets of broadcast signaling can be indicated directly, such as the first network device directly indicating through time-frequency resource information, or indirectly, such as the first network device indirectly indicating through time-frequency resource information and time-frequency resource offset information. The following describes the two methods in detail.

[0203] Mode 1: The first network device directly indicates M sets of time-frequency resources for broadcast signaling through time-frequency resource information.

[0204] The time-frequency resource information indicates the time and frequency domain resources corresponding to the M sets of broadcast signaling. The time domain resource structure mainly includes: frame, subframe, time slot, and symbol. Among them, 1 frame = 10 subframes = 10 * 14 symbols. The duration of a frame is 10ms, and the duration of a subframe is 1ms.

[0205] Understandably, in fifth-generation (5G) mobile communication systems, such as the New Radio (NR) system frame structure, data transmission is performed in frames. Each frame has a frame number that cycles from 0 to 1023, with a complete cycle taking 10.23 seconds. Some control information is transmitted in subframes. In Long Term Evolution (LTE) and 5G NR systems, subframes are also the unit for allocating uplink and downlink data. However, in 5G NR, the uplink and downlink switching position can be a symbol in a time slot within a subframe, providing more flexible uplink and downlink time resource allocation.

[0206] Frequency domain resources are composed of multiple subcarriers. The basic unit of frequency domain resources is a resource element (RE) or resource block (RB). An orthogonal frequency division multiplexing (OFDM) symbol and a subcarrier form an RE; all OFDM symbols in a time slot and 12 subcarriers in the frequency domain form an RB.

[0207] Therefore, each set of broadcast signaling, such as synchronization information block SSB, SIB, MIB, CORESET0, Msg1, Msg2, Msg3, Msg4, or time domain resources and frequency domain resources of paging, can be directly indicated through time-frequency resource information.

[0208] Specifically, the time-frequency resource information may include at least one of the following: a bitmap, or an index of at least one signaling in the M sets of broadcast signaling.

[0209] If the time-frequency resources of M sets of broadcast signaling are indicated by a bitmap, for example, the time-frequency resources of the first set of broadcast signaling in the M sets of broadcast signaling can be indicated by multiple bits of the bitmap. For example, if the SIB bitmap is 0001, the time-frequency resource corresponding to the SIB can be defined as Aa; if the MIB bitmap is 0010, the time-frequency resource corresponding to the MIB can be defined as Ab. The time-frequency resources indicated by Aa and Ab can be the same or different, without limitation.

[0210] It can be understood that different time-frequency resources can be defined by different values ​​of multiple bits in the bitmap. Therefore, the second network device can obtain any one of the M sets of broadcast signaling time-frequency resources according to the corresponding bitmap. Different values ​​of multiple bits in the bitmap can be assigned different meanings, thereby corresponding to different time-frequency resources. The meanings defined by the multiple bits of each bitmap can be adjusted according to actual conditions and are not limited.

[0211] If the time-frequency resources of M sets of broadcast signaling are indicated by the index of at least one signaling in the M sets of broadcast signaling, such as the index SSB index 1 of the synchronization information block of the first set of broadcast signaling in the M sets of broadcast signaling, the SSB index 1 corresponds to the time-frequency resources corresponding to the beam directed to the second network device. Therefore, the second network device can obtain the time-frequency resources of the synchronization information block based on SSB index 1. The time-frequency resources of other signaling can also be obtained through the above steps and will not be repeated here.

[0212] Mode 2: The first network device indirectly indicates the time-frequency resources of M sets of broadcast signaling through the time-frequency resource information and the time-frequency resource offset information, which has the following two cases.

[0213] Case 1: The time-frequency resource information is used to indicate the time-frequency resources of the tth set of broadcast signaling among M sets of broadcast signaling. The specific indication method can be indicated by the above-mentioned bit map or the index of at least one signaling in the M sets of broadcast signaling, which is not described in detail here. The time-frequency resource offset information is used to indicate the time-frequency resources of the uth set of broadcast signaling among M sets of broadcast signaling, which is the time-frequency offset compared to the time-frequency resources of the tth set of broadcast signaling, where t and u are arbitrary integers ranging from 1 to M, and t and u are different.

[0214] The time-frequency resource offset information may specifically include: an offset in the time domain, an offset in the frequency domain, or an offset in the time domain and frequency domain. The time domain offset includes: a symbol-level offset, a slot-level offset, a subframe-level offset, a frame-level offset, and a specific time offset. For example, the time domain resources of the u-th set of broadcast signaling are offset by 2 time slots compared to the time domain resources of the t-th set of broadcast signaling. At this time, the second network device can obtain the time domain resources of the u-th set of broadcast signaling based on the time domain resources of the t-th set of broadcast signaling and the offset of 2 time slots.

[0215] Frequency domain offsets include RE-level offsets, RB-level offsets, and specific frequency offsets. For example, the frequency domain resources of the u-th set of broadcast signaling are offset by two RBs compared to the frequency domain resources of the t-th set of broadcast signaling. Based on the frequency domain resources of the t-th set of broadcast signaling and the two RB offsets, the frequency domain resources of the u-th set of broadcast signaling can be obtained.

[0216] Case 2: The time-frequency resource information is used to indicate the time-frequency resources of the pth signaling in the xth set of broadcast signaling among M sets of broadcast signaling. For example, the pth signaling is SIB. The time-frequency resources of SIB can be indicated by the above-mentioned bit map or SIB index, which will not be repeated here.

[0217] The time-frequency resource offset information is used to indicate the time-frequency resource of the qth signaling in the xth set of broadcast signaling, and the time-frequency offset compared to the time-frequency resource of the pth broadcast signaling, where x is any integer from 1 to M, and p and q are integers with different values. For example, if the qth broadcast signaling is MIB, and if the time domain resources of MIB are offset by 4 symbols compared to the time domain resources of SIB, then the second network device can obtain the time domain resources of MIB based on the time domain resources of SIB and the offset of 4 symbols. If the frequency domain resources of MIB are offset by 3 REs compared to the frequency domain resources of SIB, then the frequency domain resources of MIB can be obtained based on the frequency domain resources of SIB and the offset of 3 REs. The specific calculation method will not be described here.

[0218] Optionally, the first network device can indicate the time and frequency resources of the k1th signaling in the xth set of broadcast signaling among M sets of broadcast signaling, and obtain the time and frequency resources of other signaling in the xth set of broadcast signaling based on the time and frequency resources of the k1th signaling. For example, the first network device indicates the time and frequency resources of the synchronization information block SSB in the xth set of broadcast signaling, then the second network device can obtain according to the following steps: the time and frequency resources of SIB, Msg1, Msg2, Msg3 and Msg4 in the xth set of broadcast signaling.

[0219] (1) The second network device parses the subcarrier spacing parameter signaling to obtain the subcarrier spacing of SIB, Msg2, and Msg4.

[0220] Specifically, if the second network device detects the MIB in the low frequency band, the value corresponding to "scs15 or 60" is 15KHz, and the value corresponding to "scs30or120" is 30KHz, otherwise they are 60kHz and 120kHz respectively.

[0221] (2) The second network device obtains the PDCCH configuration related to the SIB and calculates the time-frequency resources of CORESET0 based on the synchronization information block SSB.

[0222] Specifically, the second network device obtains the 8-bit PDCCH-ConfigSIB1, queries 3GPP TS38.213 Tables 13-1 to 13-10 according to the high 4-bit index, and obtains the multiplexing mode of CORESET 0, the number of RBs (ie, frequency domain length), the number of symbols (ie, time domain length) and the RB offset (ie, the offset relative to the starting position of the SSB frequency domain); then, according to the lower four-bit index, queries 3GPP TS 38.213 Tables 13-11 to 13-15 to obtain the system frame number (SFN), time slot index, and starting symbol.

[0223] (3) The second network device parses the RACH configuration index (PRACH-ConfigurationIndex) signaling and obtains the time-frequency resources of Msg1, Msg2, Msg3, and Msg4.

[0224] Specifically, query Tables 6.3.3.2-2 to 6.3.3.2-4 of TS38.211 to index the time slot start symbol and the time domain Rach-Occasion number to obtain the time and frequency resources of Msg1.

[0225] Optionally, the second network device may determine the time-frequency resources of Msg2 by receiving indication information sent by the first network device, where the indication information includes the time-frequency resources of Msg2.

[0226] Optionally, the second network device may respectively obtain the frequency domain resources and time domain resources corresponding to Msg3 by parsing the 10-bit RbAssign field and the 1-bit UlDelay in the uplink scheduling grant (UL grant) signaling carried in Msg2.

[0227] Optionally, the second network device confirms the time-frequency resources of Msg4 sent by the first network device by receiving indication information sent by the first network device.

[0228] The N beam information is used to determine the reflection direction of each beam transmitted from the first network device to the second network device. The beam information may include a reflection weight, which is used to determine the reflection direction of the M beams of the first network device after being reflected by the second network device.

[0229] Any one of the N beam information can be determined based on the incident angle between the first and second network devices, the array information of the second network device, and the service area provided by the first network device. In other words, the angles of reflection of the M beams are determined by the incident angles of the M beams entering the second network device and the service area provided by the first network device. The incident angle between the first and second network devices is associated with the position of the first network device, the position of the second network device, the array information of the first network device, or the array information of the second network device. The array information includes at least one of the following: the number of array elements, the array element spacing, the array orientation, and the array element arrangement.

[0230] The location of the first network device is the physical location where the first network device is deployed; the location of the second network device is the physical location where the second network device is deployed; the array information of the first network device may include first array orientation parameter information, which is used to indicate the direction of the antenna array of the first network device. Specifically, the direction of the antenna array of the first network device can be determined by the normal direction of the antenna array of the first network device. The array information of the second network device may include second orientation parameter information, which is used to indicate the direction of the antenna array of the second network device. Specifically, the direction of the IRS array can be determined by the normal direction of the IRS array.

[0231] The position of the first network device, the position of the second network device, the array information of the first network device, and the array information of the second network device can determine the incident angle between the first network device and the second network device, that is, the angle between the beam direction transmitted by the first network device to the second network device and the direction of the antenna array of the second network device; or the angle between the beam direction reflected by the second network device received by the first network device and the direction of the antenna array of the second network device.

[0232] It can be understood that when the physical position of the first network device, the physical position of the second network device, the antenna array information of the first network device, and the antenna array information of the second network device are determined, the incident angle of the beam generated by the first network device and directed to the second network device is a fixed value.

[0233] The correspondence between the time-frequency resources of M broadcast signals and the N beam information means that any one of the M time-frequency resources of the second network device uses one of the N beam information to increase the strength of the signal that can be received in the service area. The service area is the area where the first network device needs to provide services. In other words, each set of time-frequency resources of the M sets of broadcast signaling corresponds to one beam information of the N beam information. The second network device can use a corresponding beam information to reflect the beam on the time-frequency resource of each set of broadcast signaling. The N beam information can reflect the M sets of broadcast signaling to N different areas at most, so that the terminal devices in these N different areas can access the first network device by receiving the broadcast signaling, thereby enhancing the signal coverage capability of the first network device.

[0234] S502: The first network device sends configuration information to the second network device. The second network device receives the configuration information from the first network device.

[0235] The first network device may send the configuration information to the second network device via downlink control information DCI, radio resource control information (RRC), medium access control–control element (MAC-CE), or physical downlink shared channel (PDSCH).

[0236] S503: The second network device determines corresponding N beam information in M ​​time-frequency resources according to the configuration information.

[0237] According to the above, each set of time-frequency resources of the M broadcast signaling time-frequency resources corresponds to one beam information among the N beam information. The second network device can use the corresponding beam information to reflect the broadcast signaling on the time-frequency resources of each set of broadcast signaling. It can be understood that each set of broadcast signaling is carried in the corresponding M beams. The second network device reflects each set of broadcast signaling to the corresponding service area by switching different beam information, so that the terminal devices in these areas can achieve access.

[0238] For example, in the above method 2, SSB#3j and SSB#3k are beams pointing to the second network device, that is, there are two beam information corresponding to the time-frequency resources corresponding to SSB#3j and SSB#3k, and these two beam information can be the same or different. If the time-frequency resource j of the broadcast signaling corresponding to SSB#3j corresponds to beam information 1, the beam reflection angle corresponding to beam information 1 is 90°; the time-frequency resource k of the broadcast signaling corresponding to SSB#3k corresponds to beam information 2, and the beam reflection angle corresponding to beam information 2 is 75°. At this time, when the beam period scans to SSB#3j, the second network device can use beam information 1 to reflect SSB#3j according to the configuration information; when the beam period scans to SSB#3k, the second network device can use beam information 2 to reflect SSB#3k according to the configuration information, so that terminal devices in different areas can access the first network device.

[0239] To sum up, the first network device can configure the correspondence between M sets of broadcast signaling time-frequency resources and N beam information to instruct the second network device to use the corresponding beam information in each set of broadcast signaling time-frequency resources to adjust the coverage range of the first network device, thereby enhancing the signal coverage capability of the first network device, so that terminal devices in signal coverage blind spots can access the first network device.

[0240] In combination with the above embodiments, optionally, the above method also includes: the first network device obtains the energy of the downlink signal fed back by the terminal device, and when the energy of the downlink signal is less than a preset energy threshold, the first network device instructs the second network device to use the second beam information among the N beam information.

[0241] The terminal device is a terminal device within the area provided by the first network device, denoted as the first terminal device, and the first terminal device requests access to the first network device. The downlink signal is the signal received by the first terminal device when the second network device uses the first beam information among the N beam information. In other words, the first terminal device can receive the signal when the second network device uses the first beam information to reflect signaling sent by the first network device, such as the synchronization signal block (SSB) and / or the channel state information reference signal (CSI-RS).

[0242] The synchronization signal block (SSB) is a signal used by the first terminal device to access the first network device. For its specific functions, refer to the relevant description in S501 above and are not repeated here. The CSI-RS can be used to obtain channel state information, for example, to measure the channel between the first network device and the first terminal device and obtain channel state information required for scheduling and link adaptation, such as the precoding matrix and channel quality information.

[0243] The first terminal device can calculate the energy of the synchronization signal block SSB and / or CSI-RS according to the existing signal energy calculation formula. It can be understood that the energy of the synchronization signal block SSB and / or CSI-RS can also be obtained through other means without limitation.

[0244] The preset energy threshold may be the minimum energy of the downlink signal required for the first terminal device to perform measurement and access. That is, only when the downlink signal is greater than or equal to the preset energy threshold can the first terminal device use the measurement and access service of the channel directed by the downlink signal. Otherwise, the downlink signal is an unusable signal for the first terminal device. It will be understood that the above is only an example, and the preset energy threshold can be determined based on actual conditions and is not limited.

[0245] If the downlink signal energy is less than a preset energy threshold, the second network device switches to the first beam weight, indicating that the beam signal energy reflected is weak and cannot meet the requirements for the first terminal device to access the first network device and perform channel measurement. In this case, the first network device can instruct the second network device to use the second beam information among the N beam information, where the second beam information is different from the first beam information.

[0246] Optionally, on the time-frequency resources corresponding to the first beam information, the first network device can receive the downlink signal reflected by the second network device using the second beam information, and determine whether the downlink energy can meet the requirements for the first terminal device in a certain area to perform channel measurement and access services, thereby achieving dynamic adjustment of the beam information. It is understandable that the first network device can determine the energy of the downlink signal through the above steps, thereby adjusting the weight of the second network device, so that the first terminal devices in different areas can normally access the first network device.

[0247] Optionally, the method also includes: the first network device obtains the number of uplink signals received from the terminal device within a preset time interval, and when the number of uplink signals is less than a preset signal number threshold, the first network device instructs the second network device to use the second beam information among the N beam information.

[0248] Among them, the terminal device can be the first terminal device mentioned above, which will not be described in detail here. The uplink signal is the signal sent by the terminal device for accessing the first network device received by the first network device when the second network device uses the first beam information in the N beam information. The uplink signal is used for the terminal device to request access to the first network device. That is to say, the second network device uses the first beam information to reflect the signaling sent by the first terminal device, such as the above-mentioned Msg1, Msg3, SRS, acknowledgment (ACK), and negative acknowledgment (NACK), the signal received by the first network device. It can be understood that Msg1 can be carried in PRACH and Msg3 can be carried in PUSCH. The preset signal number threshold can be the number of uplink signals that the first network device can receive from the first terminal device in a preset time interval. The preset time interval can be a time period, which can be the time period for sending Msg1 and Msg3 when the first terminal device requests access to the first network device. It can be understood that the above is only an example. The preset signal number threshold and the preset time interval can be determined according to actual conditions and are not limited.

[0249] If the number of uplink signals is less than a preset signal number threshold, it indicates that the energy of the uplink signal reflected by the second network device when switching to the first beam information is weak and cannot meet the first terminal device's access requirement. In this case, the first network device can instruct the second network device to use the second beam information among the N beam information, where the second beam information is different from the first beam information.

[0250] Optionally, on the time-frequency resources corresponding to the first beam information, the first network device can receive an uplink signal reflected by the second network device using the second beam information, and determine whether the number of received uplink signals meets the requirement for a first terminal device in a certain area to access the first network device, thereby achieving dynamic adjustment of the beam information. It is understandable that the first network device can determine the number of uplink signals through the above steps, thereby adjusting the weight of the second network device, so that first terminal devices in different areas can normally access the first network device.

[0251] Optionally, the method also includes: the first network device obtains the energy of the uplink signal received from the terminal device, and when the energy of the uplink signal is less than a preset energy threshold, the first network device instructs the second network device to use the second beam information among the N beam information.

[0252] Among them, the terminal device can be the first terminal device mentioned above, and the uplink signal can refer to the relevant introduction of the uplink signal mentioned above, which will not be repeated here.

[0253] The preset energy threshold may be the minimum energy required for the uplink signal to be accessed by the first terminal device. That is, only when the uplink signal is greater than or equal to the preset energy threshold can the first terminal device use the downlink signal to access the first network device. Otherwise, the downlink signal is unusable by the first terminal device. It will be understood that the above is merely an example, and the preset energy threshold may be determined based on actual circumstances and is not a limitation.

[0254] If the uplink signal energy is less than a preset energy threshold, it indicates that the energy of the uplink signal reflected by the second network device when switching to the first beam information is weak and cannot meet the first terminal device's access requirement. In this case, the first network device can instruct the second network device to use the second beam information among the N beam information, where the second beam information is different from the first beam information.

[0255] Optionally, on the time-frequency resources corresponding to the first beam information, the first network device can receive the uplink signal reflected by the second network device using the second beam information, and determine whether the uplink energy can meet the access requirements of the first terminal device, thereby achieving dynamic adjustment of the beam information. It is understandable that the first network device can determine the energy of the uplink signal through the above steps, thereby adjusting the weight of the second network device, so that first terminal devices in different areas can normally access the first network device.

[0256] Optionally, the method further includes: the first network device sending power scaling information to the second terminal device.

[0257] The power scaling information indicates to the terminal device the degree of attenuation of the transmit power of a data channel that shares the same time domain resources as the M sets of broadcast signaling. The data channel is the channel used for data transmission after the second terminal device accesses the first network device. The second terminal device is the terminal device that is connected to the first network device.

[0258] It can be understood that the power scaling information is associated with the downlink broadcast signaling. For example, the downlink broadcast signaling can be the above-mentioned synchronization information block SSB, SIB, MIB, CORESET0, Msg2, Msg4, or paging.

[0259] In the case of a multi-peak beam corresponding to the above method 1, due to the constant energy, the beam gain of each multi-peak beam in each direction decreases. At this time, the beam needs to be power boosted to increase the beam gain of each direction of the multi-peak beam. In other words, it is necessary to increase the signal power of the time-frequency resource corresponding to the multi-peak beam to ensure that the gain of the multi-peak beam is large enough, so that the signal energy reflected by the second network device is strong enough to meet the access requirements of the terminal device. The terminal device here is the terminal device accessing the first network device, recorded as the second terminal device.

[0260] After the second terminal device accesses the first network device, the first network device needs to send power scaling information of a demodulation reference signal (DMRS) to the second terminal device so that the second network device can perform normal data reception and demodulation.

[0261] The power scaling information may include at least one of the following: a power scaling factor, the number of IRSs, and a broadcast signaling power increase value.

[0262] The power scaling factor can be obtained by the following steps:

[0263] (1) On the same time domain resource, let the number of RBs corresponding to the signaling that needs power boosting be x1, the number of other RBs on the time domain resource be y1, and the power occupied by each RB be P RB , then the original total power P=P RB (x1+y1). It can be understood that x1 RBs are the time-frequency resources corresponding to each signaling in the M sets of broadcast signaling, and y1 RBs are the time-frequency resources corresponding to the data channel for data transmission after the second terminal device accesses the first network device.

[0264] (2) Assume that each signaling in each set of broadcast signaling is enhanced by mdB and the power scaling factor is α. It can be understood that the total power corresponding to each time domain resource remains unchanged. Then the power scaling factor can be calculated by the following equations (10)-(11):

[0265] According to equations (10) and (11), if the power on x RBs is increased by m dB, the power on y RBs will be reduced by The first network device can use bit quantization to perform a power scaling factor, and send the quantized power scaling factor to the second terminal device. The specific bit quantization method can refer to the relevant discussion in the prior art and will not be elaborated here.

[0266] The first network device can also send the number of IRSs to the second terminal device. The second terminal device can then obtain the power backoff value for the data channel based on the number of IRSs, thereby further calculating the power scaling factor. It is understood that the number of IRSs is associated with the number of multi-peak beams. If each IRS has a beam pointing toward itself, the number of multi-peak beam pointing directions is equal to the number of IRSs + 1.

[0267] Exemplarily, the first network device can send power scaling information (i.e., the number of IRSs pointed to by the multi-peak beam) to the second network device, and the second terminal device obtains the size of the data channel power backoff. At this time, the second terminal device can locally calculate α through formula (11).

[0268] For example, the base station can send the number of IRSs as 1 to the second terminal device. At this time, the second terminal device can obtain 2 multi-peak beams that require power enhancement. It can be understood that 2 beams require a power enhancement of 3dB, and the data channel power will be backed off by 0.35dB; the first network device sends the number of IRSs as 2 to the second terminal device. At this time, the second terminal device can obtain 3 multi-peak beams that require power increase. It can be understood that 3 beams require a power enhancement of 4.77dB, and the data channel power will be backed off by 0.75dB.

[0269] Similarly, the first network device can also send the power increase value corresponding to the M sets of broadcast signaling to the second terminal device. The second terminal device can calculate the power backoff value of the data channel based on the power increase value and formula (11), which will not be repeated here.

[0270] Optionally, after the second terminal device accesses the first network device, the signal received by the second terminal device on the data channel can be expressed as in, is the actual received data matrix, and E is the additive noise. T , K represents the number of transmitting antennas and the number of subcarriers of the first network device, and ρ1 is the downlink power factor. If the additive noise is ignored, the estimated channel is It is understandable that H1 can also be obtained through other estimation methods, which are not limited here.

[0271] The second terminal device can obtain the power-scaled data channel according to H1 and the power scaling factor α The estimated results are: The second terminal device can use the scaled Subsequent data is received and demodulated, thereby ensuring normal data transmission between the first network device and the second terminal device.

[0272] The power scaling factor is determined by the frequency domain bandwidth occupied by the M sets of broadcast signaling and the frequency domain bandwidth occupied by the data channel with the same time domain resources as the M sets of broadcast signaling. According to the above formulas (10)-(11), the power scaling factor is related to x1 and y1, where x1 is the frequency domain bandwidth occupied by the M sets of broadcast signaling and y1 is the frequency domain bandwidth occupied by the data channel with the same time domain resources as the M sets of broadcast signaling.

[0273] The above is a comprehensive introduction to the communication method provided by the embodiment of the present application in combination with the method embodiment. For ease of understanding, the above method is introduced below using a specific scenario:

[0274] As shown in FIG8 , the first network device is a base station, the second network device is an IRS, and the second terminal device is UE2.

[0275] S801: The base station sends configuration information to the IRS.

[0276] The configuration information includes beam information, synchronization information block SSB index, and the incident angle between the base station and IRS.

[0277] S802: The base station transmits beam SSB#2a to the IRS.

[0278] Specifically, the base station performs beam scanning with the beam in the above method 1, and assumes that the time-frequency resource corresponding to SSB#2a is a1, the time-frequency resource corresponding to SSB#2b is b1, the time-frequency resource corresponding to SSB#2c is c1, the time-frequency resource corresponding to SSB#2d is d1, the time-frequency resource corresponding to SSB#2e is e1, the time-frequency resource corresponding to SSB#2f is f1, and the time-frequency resource corresponding to SSB#2g is g1.

[0279] S803, IRS uses beam information 1 to reflect SSB#2a to UE2 on time-frequency resource a1.

[0280] Specifically, when the base station periodically scans SSB#2a, the IRS can switch the corresponding beam information 1 to reflect SSB#2a on the time-frequency resource h1 according to the synchronization information block SSB index. The beam reflection angle corresponding to the beam information 1 is 90.

[0281] S804: UE2 sends Msg1 to the base station. Msg1 is a signal reflected by the IRS to the base station using beam information 1.

[0282] S805: The base station sends Msg2 to UE2. Msg2 is a signal reflected to UE2 by the IRS using beam information.

[0283] S806: UE2 sends Msg3 to the base station. Msg3 is a signal reflected by the IRS to the base station using beam information.

[0284] S807: The base station sends Msg4 to UE2. Msg4 is a signal reflected by the IRS to UE2 using beam information 1.

[0285] S808: After UE2 accesses the base station, the base station sends power scaling information to UE2.

[0286] It can be understood that Msg1, Msg2, Msg3 and Msg4 are carried by the beam corresponding to the above-mentioned beam information 1.

[0287] The communication method provided in the embodiment of the present application is described in detail above in conjunction with Figures 5 to 8. The communication device for executing the communication method provided in the embodiment of the present application is described in detail below in conjunction with Figures 9 and 10.

[0288] Figure 9 is a structural diagram of a communication device according to an embodiment of the present application. As shown in Figure 9 , the communication device 900 includes a transceiver module 901 and a processing module 902. For ease of illustration, Figure 9 only shows the main components of the communication device.

[0289] In some embodiments, the communication apparatus 900 may be applicable to the communication system shown in FIG. 4 to perform the functions of the first network device described above.

[0290] For example, processing module 902 is configured to obtain configuration information. Transceiver module 901 is configured to send the configuration information to the second network device. The configuration information indicates a correspondence between M sets of broadcast signaling time-frequency resources and N beam information, where M and N are integers greater than 1; each of the M sets of broadcast signaling time-frequency resources corresponds to one of the N beam information.

[0291] In one possible design, the configuration information includes time-frequency resource information, which is used to indicate the time-frequency resource information of M sets of broadcast signaling.

[0292] In one possible design scheme, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the tth set of broadcast signaling in M ​​sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the uth set of broadcast signaling in M ​​sets of broadcast signaling, which is the time-frequency offset compared to the time-frequency resources of the tth set of broadcast signaling, where t and u are arbitrary integers ranging from 1 to M, and t and u are different.

[0293] Optionally, the time-frequency resource information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

[0294] Optionally, the time-frequency resource offset information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

[0295] In one possible design scheme, any one of the M sets of broadcast signaling includes at least one of the following: synchronization information block SSB, system information block SIB, master information block MIB, bearer control resource set CORESET0, message Msg1, message Msg2, message Msg3, message Msg4, or paging Paging.

[0296] In one possible design, the N pieces of beam information are associated with at least one of the following: a position of the first network device, a position of the second network device, front information of the first network device, or front information of the second network device.

[0297] Optionally, the transceiver module 901 is further configured to obtain energy of a downlink signal fed back by the terminal device. When the energy of the downlink signal is less than a preset energy threshold, the communication device described in the fifth aspect instructs the second network device to use second beam information among the N beam information. The downlink signal is a signal received by the terminal device when the second network device uses the first beam information among the N beam information, and the downlink signal is used by the terminal device to perform measurement and / or access; the second beam information is different from the first beam information.

[0298] Optionally, the downlink signal is carried in at least one of the following: a synchronization signal block SSB, or a signaling state information reference signal CSI-RS.

[0299] Optionally, processing module 902 is further configured to obtain the number of uplink signals received from the terminal device within a preset time interval, and when the number of uplink signals is less than a preset signal number threshold, instruct the second network device to use second beam information among the N beam information. The uplink signal is a signal received by the first network device when the second network device uses the first beam information among the N beam information, and the uplink signal is used by the terminal device to request access to the first network device; the second beam information is different from the first beam information.

[0300] Optionally, the processing module 902 is further configured to obtain energy of an uplink signal received from the terminal device, and when the energy of the uplink signal is less than a preset energy threshold, the communication apparatus described in the fifth aspect instructs the second network device to use second beam information among the N beam information. The uplink signal is a signal received by the first network device when the second network device uses the first beam information among the N beam information, and the uplink signal is used by the terminal device to request access to the first network device; the second beam information is different from the first beam information.

[0301] Optionally, the uplink signal is carried in at least one of the following: a physical random access channel PRACH, a reference signal SRS, or a physical uplink shared channel PUSCH.

[0302] Optionally, the transceiver module 901 is further configured to send power scaling information to the second terminal device. The power scaling information is used to indicate to the second terminal device a degree of attenuation of the transmit power of a data channel having the same time domain resources as the M sets of broadcast signaling, where the data channel is a channel used for data transmission after the second terminal device accesses the first network device.

[0303] Optionally, the power scaling information is determined by the frequency domain bandwidth occupied by the M sets of broadcast signaling and the frequency domain bandwidth occupied by the data channel having the same time domain resources as the M sets of broadcast signaling.

[0304] In one possible design, the configuration information may be carried in at least one of the following: downlink control information DCI, radio control information RRC, media control access control-element MAC-CE, or physical downlink shared channel PDSCH.

[0305] Optionally, the transceiver module 901 may include a sending module (not shown in FIG9 ) and a receiving module (not shown in FIG9 ). The sending module is used to implement the sending function of the communication device 900 , and the receiving module is used to implement the receiving function of the communication device 900 .

[0306] Optionally, the communication device 900 may further include a storage module (not shown in FIG9 ) that stores a program or instruction. When the processing module 902 executes the program or instruction, the communication device 900 may perform the function of the first network device in the method shown in FIG5 in the above method.

[0307] It is understood that the communication device 900 can be a network device, a chip (system) or other component or assembly that can be set in a network device, or a device that includes a network device, and this application does not limit this. It is understood that if the communication device 900 is a chip (system) set in a device, then the transceiver module 901 can be an input / output interface of the chip (system), such as an input / output circuit, a pin, etc.

[0308] In addition, the technical effects of the communication device 900 can refer to the technical effects of the communication method shown in Figure 5, and will not be repeated here.

[0309] In some embodiments, the communication apparatus 900 may be applicable to the communication system shown in FIG. 4 to perform the functions of the aforementioned second network device.

[0310] For example, transceiver module 901 is configured to receive configuration information from a first network device. Processing module 902 is configured to determine, based on the configuration information, N corresponding beam information from M time-frequency resources. The configuration information indicates the correspondence between M sets of broadcast signaling time-frequency resources and N beam information, where M and N are integers greater than 1; each of the M sets of broadcast signaling time-frequency resources corresponds to one of the N beam information.

[0311] In one possible design, any one of the M sets of broadcast signaling includes at least one signaling, and the at least one signaling is a signaling for providing access services to terminal devices.

[0312] In one possible design scheme, the configuration information includes time-frequency resource information, and the time-frequency resource information is used to indicate the time-frequency resources of M sets of broadcast signaling.

[0313] In one possible design scheme, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the tth set of broadcast signaling in M ​​sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the uth set of broadcast signaling in M ​​sets of broadcast signaling, which is the time-frequency offset compared to the time-frequency resources of the tth set of broadcast signaling, where t and u are arbitrary integers ranging from 1 to M, and t and u are different.

[0314] In one possible design scheme, the configuration information includes time-frequency resource information and time-frequency resource offset information. The time-frequency resource information is used to indicate the time-frequency resources of the p-th signaling in the x-th set of broadcast signaling in M ​​sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the q-th broadcast signaling in the x-th set of broadcast signaling, which is the time-frequency offset of the time-frequency resources compared to the p-th broadcast signaling, where x is any integer from 1 to M, and p and q are integers with different values.

[0315] Optionally, the time-frequency resource information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

[0316] Optionally, the time-frequency resource offset information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

[0317] In one possible design scheme, any one of the M sets of broadcast signaling includes at least one of the following: synchronization information block SSB, system information block SIB, master information block MIB, bearer control resource set CORESET0, message Msg1, message Msg2, message Msg3, message Msg4, or paging Paging.

[0318] In one possible design, the N pieces of beam information are associated with at least one of the following: a position of the first network device, a position of the second network device, front information of the first network device, or front information of the second network device.

[0319] In one possible design, the configuration information may be carried in at least one of the following: downlink control information DCI, radio control information RRC, media control access control-element MAC-CE, or physical downlink shared channel PDSCH.

[0320] Optionally, the transceiver module 901 may include a sending module (not shown in FIG9 ) and a receiving module (not shown in FIG9 ). The sending module is used to implement the sending function of the communication device 900 , and the receiving module is used to implement the receiving function of the communication device 900 .

[0321] Optionally, the communication device 900 may further include a storage module (not shown in FIG9 ) that stores a program or instruction. When the processing module 902 executes the program or instruction, the communication device 900 may perform the function of the second network device in the communication method shown in FIG5 .

[0322] It is understood that the communication device 900 can be a network device, a chip (system) or other component or assembly that can be provided in a network device, or a device that includes a network device, and this application does not limit this. It is understood that if the communication device 900 is a chip (system) provided in a device, the transceiver module 901 can be an input / output interface of the chip (system), such as an input / output circuit, a pin, etc.

[0323] In addition, the technical effects of the communication device 900 can refer to the technical effects of the communication method shown in Figure 5, and will not be repeated here.

[0324] Figure 10 is a second structural diagram of a communication device provided in an embodiment of the present application. Exemplarily, the communication device may be a terminal, or a chip (system) or other component or assembly that can be provided in a terminal. As shown in Figure 10, the communication device 1000 may include a processor 1001. Optionally, the communication device 1000 may further include a memory 1002 and / or a transceiver 1003. The processor 1001 is coupled to the memory 1002 and the transceiver 1003, such as by a communication bus.

[0325] The following is a detailed introduction to the various components of the communication device 1000 in conjunction with FIG10 :

[0326] The processor 1001 is the control center of the communication device 1000 and can be a single processor or a collective term for multiple processing elements. For example, the processor 1001 can be one or more central processing units (CPUs), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application, such as one or more digital signal processors (DSPs) or one or more field programmable gate arrays (FPGAs).

[0327] Optionally, the processor 1001 may execute various functions of the communication device 1000 , such as executing the communication method shown in FIG. 4 , by running or executing a software program stored in the memory 1002 and calling data stored in the memory 1002 .

[0328] In a specific implementation, as an embodiment, the processor 1001 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG10 .

[0329] In a specific implementation, as an embodiment, the communication device 1000 may also include multiple processors, such as the processor 1001 and the processor 1004 shown in FIG10 . Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). The processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0330] The memory 1002 is used to store the software program for executing the solution of the present application, and the execution is controlled by the processor 1001. The specific implementation method can refer to the above method embodiment and will not be repeated here.

[0331] Alternatively, the memory 1002 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 1002 may be integrated with the processor 1001 or exist independently and be coupled to the processor 1001 via an interface circuit (not shown in FIG. 10 ) of the communication device 1000. This embodiment of the present application does not specifically limit this.

[0332] Transceiver 1003 is used for communication with other communication devices. For example, if communication device 1000 is a terminal, transceiver 1003 can be used to communicate with a network device or another terminal device. For another example, if communication device 1000 is a network device, transceiver 1003 can be used to communicate with a terminal or another network device.

[0333] Optionally, the transceiver 1003 may include a receiver and a transmitter (not shown separately in FIG10 ), wherein the receiver is used to implement a receiving function, and the transmitter is used to implement a sending function.

[0334] Optionally, the transceiver 1003 may be integrated with the processor 1001 or exist independently and be coupled to the processor 1001 through an interface circuit (not shown in FIG. 10 ) of the communication device 1000 . This embodiment of the present application does not specifically limit this.

[0335] It is understandable that the structure of the communication device 1000 shown in FIG10 does not constitute a limitation on the communication device, and an actual communication device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0336] In addition, the technical effects of the communication device 1000 can refer to the technical effects of the methods described in the above method embodiments, and will not be repeated here.

[0337] It should be understood that the processor in the embodiments of the present application may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0338] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0339] The above embodiments can be implemented in whole or in part by software, hardware (such as circuits), firmware or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (such as infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state drive.

[0340] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. A and B can be singular or plural. Furthermore, the character " / " as used herein generally indicates an "or" relationship between the associated objects, but it may also indicate an "and / or" relationship. For specific understanding, please refer to the context.

[0341] In this application, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0342] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0343] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0344] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0345] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0346] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0347] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0348] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0349] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: include: The first network device obtains configuration information; wherein the configuration information is used to indicate the correspondence between the time-frequency resources of M sets of broadcast signaling and the N beam information, where M and N are integers greater than 1; each set of the time-frequency resources of the M sets of broadcast signaling corresponds to one of the N beam information; The first network device sends the configuration information to the second network device.

2. The method according to claim 1, characterized in that Any set of broadcast signaling in the M sets of broadcast signaling includes at least one signaling, and the at least one signaling is a signaling that provides access services for terminal devices.

3. The method according to claim 1, characterized in that The configuration information includes time-frequency resource information, and the time-frequency resource information is used to indicate the time-frequency resources of the M sets of broadcast signaling.

4. The method according to claim 1, characterized in that: The configuration information includes time-frequency resource information and time-frequency resource offset information, the time-frequency resource information is used to indicate the time-frequency resources of the tth set of broadcast signaling among the M sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the uth set of broadcast signaling among the M sets of broadcast signaling, and the time-frequency offset compared to the time-frequency resources of the tth set of broadcast signaling, t and u are any integers from 1 to M, and t and u are different.

5. The method according to claim 1, characterized in that The configuration information includes time-frequency resource information and time-frequency resource offset information, the time-frequency resource information is used to indicate the time-frequency resources of the p-th signaling in the x-th set of broadcast signaling among the M sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the q-th broadcast signaling in the x-th set of broadcast signaling, and the time-frequency offset of the time-frequency resources of the p-th broadcast signaling compared to the time-frequency offset of the time-frequency resources of the p-th broadcast signaling, where x is any integer from 1 to M, and p and q are integers with different values.

6. The method according to any one of claims 3 to 5, characterized in that: The time-frequency resource information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

7. The method according to claim 4 or 5, characterized in that: The time-frequency resource offset information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

8. The method according to any one of claims 1 to 7, characterized in that Any one of the M sets of broadcast signaling includes at least one of the following: synchronization information block SSB, system information block SIB, master information block MIB, bearer control resource set CORESET0, message Msg1, message Msg2, message Msg3, message Msg4, or paging Paging.

9. The method according to any one of claims 1 to 8, characterized in that The N beam information is associated with at least one of the following: a position of the first network device or the second network device, front information of the first network device, or front information of the second network device.

10. The method according to any one of claims 1 to 9, characterized in that The method further comprises: The first network device obtains energy of a downlink signal fed back by the terminal device; wherein the downlink signal is a signal received by the terminal device when the second network device uses the first beam information among the N beam information, and the downlink signal is used by the terminal device to perform measurement and / or access; When the energy of the downlink signal is less than a preset energy threshold, the first network device instructs the second network device to use second beam information among the N beam information; wherein the second beam information is different from the first beam information.

11. The method according to claim 10, characterized in that The downlink signal is carried in at least one of the following: Synchronization signal block SSB, or channel state information reference signal CSI-RS.

12. The method according to any one of claims 1 to 9, characterized in that: The method further comprises: The first network device obtains the number of uplink signals received from the terminal device within a preset time interval, wherein the uplink signal is a signal received by the first network device when the second network device uses the first beam information in the N beam information, and the uplink signal is used by the terminal device to request access to the first network device; When the number of the uplink signals is less than a preset signal number threshold, the first network device instructs the second network device to use the second beam information among the N beam information; wherein the second beam information is different from the first beam information.

13. The method according to any one of claims 1 to 9, characterized in that: The method further comprises: The first network device obtains energy of an uplink signal received from the terminal device, wherein the uplink signal is a signal received by the first network device when the second network device sends a signal using the first beam information among the N beam information, and the uplink signal is used by the terminal device to request access to the first network device; When the energy of the uplink signal is less than a preset energy threshold, the first network device instructs the second network device to use second beam information among the N beam information; wherein the second beam information is different from the first beam information.

14. The method according to any one of claims 12-13, characterized in that: The uplink signal is carried in at least one of the following: a physical random access channel PRACH, a reference signal SRS or a physical uplink shared channel PUSCH.

15. The method according to any one of claims 1 to 14, characterized in that: The method further comprises: The first network device sends power scaling information to the terminal device; wherein the power scaling information is used to indicate to the terminal device the attenuation degree of the transmission power of a data channel having the same time domain resources as M sets of broadcast signaling, and the data channel is a channel for data transmission after the terminal device accesses the first network device.

16. The method according to claim 15, characterized in that The power scaling information is determined by the frequency domain bandwidth occupied by the M sets of broadcast signaling and the frequency domain bandwidth occupied by the data channel having the same time domain resources as the M sets of broadcast signaling.

17. The method according to any one of claims 1 to 16, characterized in that The configuration information may be carried in at least one of the following: Downlink control information DCI, radio control information RRC, media control access control-element MAC-CE, or physical downlink shared signaling PDSCH.

18. A communication method, characterized in that: include: The second network device receives configuration information from the first network device; wherein the configuration information is used to indicate a correspondence between time-frequency resources of M sets of broadcast signaling and N beam information, where M and N are integers greater than 1; each set of the M sets of time-frequency resources of the broadcast signaling corresponds to one of the N beam information; The second network device determines corresponding N beam information in the M time-frequency resources according to the configuration information.

19. The method according to claim 18, characterized in that Any set of broadcast signaling in the M sets of broadcast signaling includes at least one signaling, and the at least one signaling is a signaling that provides access services for terminal devices.

20. The method according to claim 18, characterized in that The configuration information includes time-frequency resource information, and the time-frequency resource information is used to indicate the time-frequency resources of the M sets of broadcast signaling.

21. The method according to claim 18, characterized in that The configuration information includes time-frequency resource information and time-frequency resource offset information, the time-frequency resource information is used to indicate the time-frequency resources of the tth set of broadcast signaling among the M sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the uth set of broadcast signaling among the M sets of broadcast signaling, and the time-frequency offset compared to the time-frequency resources of the tth set of broadcast signaling, t and u are any integers from 1 to M, and t and u are different.

22. The method according to claim 18, characterized in that The configuration information includes time-frequency resource information and time-frequency resource offset information, the time-frequency resource information is used to indicate the time-frequency resources of the p-th signaling in the x-th set of broadcast signaling among the M sets of broadcast signaling; the time-frequency resource offset information is used to indicate the time-frequency resources of the q-th broadcast signaling in the x-th set of broadcast signaling, and the time-frequency offset of the time-frequency resources of the p-th broadcast signaling compared to the time-frequency offset of the time-frequency resources of the p-th broadcast signaling, where x is any integer from 1 to M, and p and q are integers with different values.

23. The method according to any one of claims 20 to 22, characterized in that The time-frequency resource information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

24. The method according to claim 21 or 22, characterized in that The time-frequency resource offset information includes at least one of the following: a bit map, or an index of at least one signaling in the M sets of broadcast signaling.

25. The method according to any one of claims 18 to 24, characterized in that Any one of the M sets of broadcast signaling includes at least one of the following: synchronization information block SSB, system information block SIB, master information block MIB, bearer control resource set CORESET0, message Msg1, message Msg2, message Msg3, message Msg4, or paging Paging.

26. The method according to any one of claims 18 to 25, characterized in that The N beam information is associated with at least one of the following: a position of the first network device, a position of the second network device, front information of the first network device, or front information of the second network device.

27. The method according to any one of claims 18 to 26, characterized in that The configuration information may be carried in at least one of the following: Downlink control information DCI, radio resource control information RRC, media control access control-control element MAC-CE, or physical downlink shared channel PDSCH.

28. A communication device, characterized in that: The apparatus comprises: one or more modules for executing the method as claimed in any one of claims 1-27.

29. A communication device, characterized in that: The communication device comprises: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device executes the communication method according to any one of claims 1 to 27.

30. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a computer program or an instruction. When the computer program or the instruction is executed on a computer, the computer is caused to execute the communication method according to any one of claims 1 to 27.

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