Communication method and communication apparatus

Abstract

A communication method, comprising: a first network device sends first information and second information to a second network device, wherein the first information is used for instructing the second network device to report third information, the third information is used for suppressing cross link interference of the first network device on the second network device, the second information is used for configuring a first measurement resource, the first measurement resource is used for the second network device to receive a first signal, and the first signal is used for determining the third information; and the first network device sends the first signal to the second network device and receives the third information from the second network device. According to the method, the second network device is instructed to send the third information which can be used to suppress the cross link interference of the first network device on the second network device, so that the first network device can obtain information necessary for executing a suppression action, thereby avoiding causing cross link interference by the first network device on the second network device during using SBFD to send a signal in a subsequent process.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on October 31, 2023, with application number 202311444633.7 and titled “A Communication Method and Communication 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 more particularly, to a communication method and a communication device. Background Art

[0003] To meet the needs of emerging services, a subband full-duplex (SBFD) solution has been proposed to improve the uplink coverage of time division duplex (TDD) systems. Subband full-duplex can include subband non-overlapping full-duplex and subband overlapping full-duplex. In a TDD system, subband full-duplex enables network devices to both receive and transmit within a single time slot or orthogonal frequency division multiplexing (OFDM) symbol, using different subbands for uplink and downlink transmission.

[0004] However, SBFD may cause cross-link interference (CLI) between base stations. Therefore, how to suppress the cross-link interference between base stations becomes an urgent problem to be solved.

[0005] Summary of the Invention

[0006] The present application provides a communication method and a communication device, which can avoid the lack of necessary information for performing cross-link interference suppression actions in the information reported during inter-station measurement, thereby achieving cross-link interference suppression.

[0007] In the first aspect, a communication method is provided. The method can be executed by a network device, or can be executed by a component of the network device (such as a chip or circuit). There is no limitation on this. For the sake of ease of description, the following is explained using the example of execution by a network device.

[0008] The method may include: a first network device sending first information and second information to a second network device. The first information is used to instruct the second network device to report third information, and the third information is used to suppress cross-link interference caused by the first network device to the second network device. The second information is used to configure a first measurement resource, the first measurement resource is used by the second network device to receive a first signal, and the first signal is used to determine the third information. The first network device sends the first signal to the second network device and receives the third information from the second network device.

[0009] In this solution, the first signal may include a reference signal for channel measurement. Exemplarily, the first signal may include a CSI-RS.

[0010] The third information is used to suppress cross-link interference of the first network device on the second network device, which means that the first network device can use the third information to perform an action of suppressing cross-link interference of the first network device on the second network device. Exemplarily, the action can be CBF.

[0011] In the above scheme, by instructing the second network device to send third information that can be used to suppress the cross-link interference of the first network device to the second network device, the first network device can obtain the necessary information to perform the suppression action to suppress the cross-link interference, so that the first network device can subsequently avoid cross-link interference to the second network device when using SBFD to send signals.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the third information includes at least one of the following: a first matrix, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device; indication information of the first matrix, the indication information of the first matrix is ​​used to determine the first matrix; a first apex angle and azimuth angle set, the first apex angle and azimuth angle set is used to suppress cross-link interference of the first network device to the second network device.

[0013] Optionally, the third information may also include a first layer number and / or a first quantity, the first layer number includes the number of columns of the first matrix, the first quantity includes the number of elements included in the first zenith angle and azimuth angle set, and an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle.

[0014] In one possible implementation, if the first information includes first indication information, and the first indication information is used to indicate that the reporting frequency band of the third information is a subband, then the third information may include: indication information of N first matrices and / or N first matrices, each first matrix corresponds to a subband, and the indication information of each first matrix corresponds to a subband, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device, and N is a positive integer less than or equal to the number of subbands.

[0015] In a possible implementation manner, the first indication information includes the length and number of subbands.

[0016] The indication information of the first matrix may indicate the first matrix. Exemplarily, the indication information of the first matrix may include an index of the first matrix, and the first network device may determine the corresponding first matrix through the index.

[0017] In the above solution, the first network device can obtain parameters for suppressing cross-link interference caused by the first network device to the second network device, thereby suppressing the cross-link interference caused by the first network device to the second network device.

[0018] In combination with the first aspect, in some implementations of the first aspect, the third information further includes first request information, where the first request information is used to request suppression of cross-link interference from the first network device to the second network device.

[0019] The first request information can enable the first network device to suppress cross-link interference of the second network device, thereby improving communication reliability.

[0020] In conjunction with the first aspect, in certain implementations of the first aspect, the method further includes the first network device receiving a first receive power and / or a first path loss from the second network device, where the first receive power is the receive power of the first signal received by the second network device, and the first path loss is the path loss from the first network device to the second network device. The first network device determines whether to suppress cross-link interference from the first network device to the second network device.

[0021] Exemplarily, if the first received power is greater than a first threshold or the first path loss is less than a second threshold, the first network device determines not to suppress cross-link interference of the first network device to the second network device.

[0022] In this solution, whether to suppress cross-link interference from a first network device to a second network device is determined based on received power and / or path loss. This allows for selective suppression, reducing unnecessary suppression operations and improving communication flexibility. Because CLI suppression can affect the downlink performance of the first network device, avoiding unnecessary CLI suppression can improve downlink performance.

[0023] In combination with the first aspect, in certain implementations of the first aspect, the first information is also used to indicate that the third information includes at least one of the following: a first matrix, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device; indication information of the first matrix, the indication information of the first matrix is ​​used to determine the first matrix; a first zenith angle and azimuth angle set, the first zenith angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device; a first number of layers, the first number of layers is the number of columns of the first matrix; a first quantity, the first quantity is the number of elements included in the first zenith angle and azimuth angle set, an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle; first request information, the first request information is used to request suppression of cross-link interference of the first network device to the second network device.

[0024] The above solution directly indicates the parameters or information that need to be included in the third information through the first information, so that the first network device can effectively obtain the information required to perform the operation of suppressing the cross-link interference of the first network device on the second network device, thereby improving the efficiency and reliability of communication.

[0025] In combination with the first aspect, in some implementations of the first aspect, the first information includes second indication information, and the second indication information is used to indicate the first layer number and / or the first quantity.

[0026] In combination with the first aspect, in some implementations of the first aspect, the second information includes: the transmission power of the first signal on a frequency unit and / or the start time of the first signal.

[0027] The start time of the first signal refers to the absolute time when the first signal is sent for the first time. For example, the time may be UTC time.

[0028] The corresponding path loss can be calculated through the transmission power, and the time alignment of sending and measuring the first signal can be achieved through the start time of sending the first signal, thereby improving the reliability of communication.

[0029] In combination with the first aspect, in some implementations of the first aspect, the method further includes: the first network device sends first configuration information to the second network device, the first configuration information is used to configure a first reporting setting, and the first reporting setting is used for the second network device to report third information.

[0030] In combination with the first aspect, in certain implementations of the first aspect, the method also includes: the first network device receives fourth information from the second network device, and the fourth information is used to instruct the first network device to modify the first measurement resource; the first network device sends fifth information to the second network device based on the fourth information, and the fifth information is used to indicate the modified first measurement resource.

[0031] In the above scheme, by modifying the measurement resources, the efficiency of inter-station measurement can be improved, duplicate measurements can be avoided, and thus measurement overhead can be reduced; at the same time, necessary measurements can be avoided from being missed, thereby improving measurement reliability.

[0032] In combination with the first aspect, in some implementations of the first aspect, the fourth information includes parameters recommended or not recommended by the second network device.

[0033] In combination with the first aspect, in some implementations of the first aspect, the method further includes: the first network device sending a second signal to the terminal device based on the third information.

[0034] On the second aspect, a communication method is provided. The method can be executed by a network device, or it can also be executed by a component of the network device (such as a chip or circuit). There is no limitation on this. For the sake of ease of description, the following is explained using the example of execution by a network device.

[0035] The method may include: a second network device receiving first information and second information from a first network device; the first information being used to instruct the second network device to report third information, and the third information being used to suppress cross-link interference from the first network device to the second network device; the second information being used to configure first measurement resources, the first measurement resources being used by the second network device to receive a first signal, and the first signal being used to determine the third information; the second network device receiving the first signal from the first network device; and the second network device sending the third information to the first network device.

[0036] In combination with the second aspect, in certain implementations of the second aspect, the third information includes at least one of the following: a first matrix, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device; indication information of the first matrix, the indication information of the first matrix is ​​used to determine the first matrix; a first apex angle and azimuth angle set, the first apex angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device.

[0037] Optionally, the third information may also include a first layer number and / or a first quantity, the first layer number includes the number of columns of the first matrix, the first quantity includes the number of elements included in the first zenith angle and azimuth angle set, and an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle.

[0038] In one possible implementation, if the first information includes first indication information, and the first indication information is used to indicate that the reporting frequency band of the third information is a subband, then the third information may include: indication information of N first matrices and / or N first matrices, each first matrix corresponds to a subband, and the indication information of each first matrix corresponds to a subband, and N is a positive integer less than or equal to the number of subbands.

[0039] In combination with the second aspect, in some implementations of the second aspect, the third information further includes first request information, where the first request information is used to request suppression of cross-link interference from the first network device to the second network device.

[0040] In conjunction with the second aspect, in certain implementations of the second aspect, the method further includes the second network device sending a first receive power and / or a first path loss to the first network device, where the first receive power is the receive power of the first signal received by the second network device, and the first path loss is the path loss from the first network device to the second network device. The first network device determines whether to suppress cross-link interference from the first network device to the second network device.

[0041] In combination with the second aspect, in certain implementations of the second aspect, the first information is also used to indicate that the third information includes at least one of the following: a first matrix, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device; indication information of the first matrix, the indication information of the first matrix is ​​used to determine the first matrix; a first zenith angle and azimuth angle set, the first zenith angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device; a first number of layers, the first number of layers is the number of columns of the first matrix; a first quantity, the first quantity is the number of elements included in the first zenith angle and azimuth angle set, an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle; first request information, the first request information is used to request suppression of cross-link interference of the first network device to the second network device.

[0042] In combination with the second aspect, in some implementations of the second aspect, the first information includes second indication information, and the second indication information is used to indicate the first number of layers and / or the first quantity.

[0043] In combination with the second aspect, in some implementations of the second aspect, the second information includes: the transmission power of the first signal on a frequency unit and / or the start time of the first signal.

[0044] In combination with the second aspect, in some implementations of the second aspect, the method also includes: the second network device receives first configuration information from the first network device, the first configuration information is used to configure a first reporting setting, and the first reporting setting is used by the second network device to report third information.

[0045] In combination with the second aspect, in certain implementations of the second aspect, the method also includes: the second network device sends fourth information to the first network device, and the fourth information is used to instruct the first network device to modify the first measurement resource; the second network device receives fifth information from the first network device, and the fifth information is used to indicate the modified first measurement resource.

[0046] In combination with the second aspect, in some implementations of the second aspect, the fourth information includes parameters recommended or not recommended by the second network device.

[0047] On the third aspect, a communication method is provided. The method can be executed by a network device, or it can also be executed by a component of the network device (such as a chip or circuit). There is no limitation on this. For the sake of ease of description, the following is explained using the example of execution by a network device.

[0048] The method includes: a first network device receiving first information from a third network device, the first information being used to indicate a first transmission resource, the first transmission resource being a resource used by the first network device to transmit a first signal to a second network device; the first network device transmitting the first signal to the second network device; and the first network device receiving fourth information from the second network device, the fourth information being used to suppress cross-link interference from the first network device to the second network device, the fourth information being determined based on the first signal.

[0049] In combination with the third aspect, in certain implementations of the third aspect, the fourth information includes at least one of the following: a first matrix, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device; indication information of the first matrix, the indication information of the first matrix is ​​used to determine the first matrix; a first apex angle and azimuth angle set, the first apex angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device.

[0050] Optionally, the fourth information may also include a first layer number and / or a first quantity, the first layer number includes the number of columns of the first matrix, the first quantity includes the number of elements included in the first zenith angle and azimuth angle set, and an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle.

[0051] In one possible implementation, if the reporting frequency band of the fourth information is a subband, the fourth information may include at least one of the following: N first matrices and / or indication information of N first matrices, each first matrix corresponding to a subband, and the indication information of each first matrix corresponding to a subband, where N is a positive integer less than or equal to the number of subbands.

[0052] In combination with the third aspect, in some implementations of the third aspect, the fourth information further includes first request information, where the first request information is used to request suppression of cross-link interference from the first network device to the second network device.

[0053] In conjunction with the third aspect, in certain implementations of the third aspect, the method further includes: receiving, by the first network device, a first receive power and / or a first path loss from the second network device, where the first receive power is the receive power of the first signal received by the second network device, and the first path loss is the path loss from the first network device to the second network device; and determining, by the first network device, whether to suppress cross-link interference from the first network device to the second network device.

[0054] In combination with the third aspect, in some implementations of the third aspect, the method further includes the first network device sending a second signal to the terminal device based on the fourth information.

[0055] In combination with the third aspect, in certain implementations of the third aspect, the method also includes the first network device receiving sixth information from the third network device, the sixth information being used to indicate the modified first sending resource, the sixth information being determined after the third network device receives fifth information from the second network device, the fifth information being used to instruct the third network device to modify the first measurement resource.

[0056] In the fourth aspect, a communication method is provided. The method can be executed by a network device, or it can be executed by a component of the network device (such as a chip or circuit). There is no limitation on this. For the sake of ease of description, the following is explained as an example of execution by a network device.

[0057] The method may include: a second network device receiving second information and third information from a third network device. The second information is used to instruct the second network device to report fourth information to the first network device, and the fourth information is used to suppress cross-link interference from the first network device to the second network device. The third information is used to configure a first measurement resource, the first measurement resource being used by the second network device to receive a first signal, and the first signal being used to determine the third information. The second network device receives the first signal from the first network device. The second network device sends the fourth information to the first network device.

[0058] In combination with the fourth aspect, in certain implementations of the fourth aspect, the fourth information includes at least one of the following: a first matrix, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device; indication information of the first matrix, the indication information of the first matrix is ​​used to determine the first matrix; a first apex angle and azimuth angle set, the first apex angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device.

[0059] Optionally, the fourth information may also include a first layer number and / or a first quantity, the first layer number includes the number of columns of the first matrix, the first quantity includes the number of elements included in the first zenith angle and azimuth angle set, and an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle.

[0060] In one possible implementation, if the second information includes first indication information, and the first indication information is used to indicate that the reporting frequency band of the fourth information is a subband, then the fourth information may include: indication information of N first matrices and / or N first matrices, each first matrix corresponds to a subband, and the indication information of each first matrix corresponds to a subband, and N is a positive integer less than or equal to the number of subbands.

[0061] In combination with the fourth aspect, in some implementations of the fourth aspect, the fourth information further includes first request information, where the first request information is used to request suppression of cross-link interference from the first network device to the second network device.

[0062] In conjunction with the fourth aspect, in certain implementations of the fourth aspect, the method further includes the second network device sending a first receive power and / or a first path loss to the first network device, where the first receive power is the receive power of the first signal received by the second network device, and the first path loss is the path loss from the first network device to the second network device. The first network device determines whether to suppress cross-link interference from the first network device to the second network device.

[0063] In combination with the fourth aspect, in certain implementations of the fourth aspect, the second information is also used to indicate that the fourth information includes at least one of the following: a first matrix, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device; indication information of the first matrix, the indication information of the first matrix is ​​used to determine the first matrix; a first zenith angle and azimuth angle set, the first zenith angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device; a first number of layers, the first number of layers is the number of columns of the first matrix; a first quantity, the first quantity is the number of elements included in the first zenith angle and azimuth angle set, an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle; first request information, the first request information is used to request suppression of cross-link interference of the first network device to the second network device.

[0064] In combination with the fourth aspect, in some implementations of the fourth aspect, the second information includes second indication information, and the second indication information is used to indicate the first number of layers and / or the first quantity.

[0065] In combination with the fourth aspect, in certain implementations of the fourth aspect, the third information includes: the transmission power of the first signal on a frequency unit and / or the start time of the first signal.

[0066] In combination with the fourth aspect, in certain implementations of the fourth aspect, the method also includes: the second network device receives first configuration information from the third network device, the first configuration information is used to configure a first reporting setting, and the first reporting setting is used by the second network device to report fourth information to the first network device.

[0067] In combination with the fourth aspect, in certain implementations of the fourth aspect, the method also includes: the second network device sends fifth information to the third network device, and the fifth information is used to instruct the first network device to modify the first measurement resource; the second network device receives seventh information from the third network device, and the seventh information is used to indicate the modified first measurement resource.

[0068] In combination with the fourth aspect, in some implementations of the fourth aspect, the fifth information includes parameters recommended or not recommended by the second network device.

[0069] In a fifth aspect, a communication method is provided, which can be executed by a network device, or can also be executed by a component of the network device (such as a chip or circuit), without limitation. For the sake of ease of description, the following is an example of execution by a network device. The method may include: a third network device sends first information to a first network device, the first information is used to indicate a first sending resource, and the first sending resource is a resource for the first network device to send a first signal to the second network device. The third network device sends second information to the second network device, the second information is used to instruct the second network device to report fourth information to the first network device, the fourth information is used to suppress cross-link interference of the first network device to the second network device, and the first signal is used to determine the fourth information. The third network device sends third information to the second network device, the third information is used to indicate a first measurement resource, and the first measurement resource is a resource for the second network device to receive and measure the first signal.

[0070] In combination with the fifth aspect, in certain implementations of the fifth aspect, the fourth information includes at least one of the following: a first matrix, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device; indication information of the first matrix, the indication information of the first matrix is ​​used to determine the first matrix; a first apex angle and azimuth angle set, the first apex angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device.

[0071] Optionally, the fourth information may also include a first layer number and / or a first quantity, the first layer number includes the number of columns of the first matrix, the first quantity includes the number of elements included in the first zenith angle and azimuth angle set, and an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle.

[0072] In one possible implementation, if the second information includes first indication information, and the first indication information is used to indicate that the reporting frequency band of the fourth information is a subband, then the fourth information may include: indication information of N first matrices and / or N first matrices, each first matrix corresponds to a subband, and the indication information of each first matrix corresponds to a subband, and N is a positive integer less than or equal to the number of subbands.

[0073] In combination with the fifth aspect, in some implementations of the fifth aspect, the fourth information further includes first request information, and the first request information is used to request suppression of cross-link interference of the first network device to the second network device.

[0074] In combination with the fifth aspect, in certain implementations of the fifth aspect, the second information is also used to indicate that the fourth information includes at least one of the following: a first matrix, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device; indication information of the first matrix, the indication information of the first matrix is ​​used to determine the first matrix; a first zenith angle and azimuth angle set, the first zenith angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device; a first number of layers, the first number of layers is the number of columns of the first matrix; a first quantity, the first quantity is the number of elements included in the first zenith angle and azimuth angle set, an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle; first request information, the first request information is used to request suppression of cross-link interference of the first network device to the second network device.

[0075] In combination with the fifth aspect, in some implementations of the fifth aspect, the second information includes second indication information, and the second indication information is used to indicate the first number of layers and / or the first quantity.

[0076] In combination with the fifth aspect, in certain implementations of the fifth aspect, the third information includes: the transmission power of the first signal on a frequency unit and / or the start time of the first signal.

[0077] In combination with the fifth aspect, in certain implementations of the fifth aspect, the method also includes: the third network device sends first configuration information to the second network device, the first configuration information is used to configure a first reporting setting, and the first reporting setting is used by the second network device to report fourth information to the first network device.

[0078] In combination with the fifth aspect, in certain implementations of the fifth aspect, the method also includes: the third network device receives fifth information from the second network device, and the fifth information is used to instruct the first network device to modify the first measurement resource; the third network device sends sixth information to the first network device, and the sixth information is used to indicate the modified first sending resource; the third network device sends seventh information to the second network device, and the seventh information is used to indicate the modified first measurement resource.

[0079] In combination with the fifth aspect, in some implementations of the fifth aspect, the fifth information includes parameters recommended or not recommended by the second network device.

[0080] In a sixth aspect, a communication system is provided, which includes a first network device and a second network device, wherein the first network device performs the actions of the first network device in the first aspect or the second aspect and any possible action of the first aspect or the second aspect, and the second network device performs the actions of the second network device in the first aspect or the second aspect and any possible action of the first aspect or the second aspect.

[0081] In the seventh aspect, a communication system is provided, which includes a first network device, a second network device and a third network device, wherein the first network device performs the actions of the first network device in any of the third to fifth aspects and the third to fifth aspects, the second network device performs the actions of the second network device in any of the third to fifth aspects and the third to fifth aspects, and the third network device performs the actions of the third network device in any of the third to fifth aspects and the third to fifth aspects.

[0082] In an eighth aspect, a communication device is provided, configured to execute the methods provided in aspects 1 to 5 above. Specifically, the device may include units and / or modules, such as a processing unit and / or a communication unit, configured to execute the methods in aspects 1 to 5 and any possible implementation of aspects 1 to 5.

[0083] In one implementation, the apparatus is a network device. When the apparatus is a network device, the communication unit may be a transceiver or an input / output interface; and the processing unit may be at least one processor. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input / output interface may be an input / output circuit.

[0084] In another implementation, the device is a chip, chip system, or circuit used in a network device. When the device is a chip, chip system, or circuit used in a network device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; and the processing unit may be at least one processor, processing circuit, or logic circuit.

[0085] In a ninth aspect, a communication device is provided, comprising: at least one processor, the at least one processor being coupled to at least one memory, the at least one memory being used to store computer programs or instructions, and the at least one processor being used to call and run the computer program or instructions from the at least one memory, so that the communication device executes the method in any possible implementation of the first to fifth aspects and the first to fifth aspects.

[0086] In one implementation, the apparatus is a network device.

[0087] In another implementation, the apparatus is a chip, a chip system, or a circuit used in a network device.

[0088] In a tenth aspect, a processor is provided for executing the methods provided in the above aspects.

[0089] For the operations such as sending and acquiring / receiving involved in the processor, unless otherwise specified, or if they do not conflict with their actual functions or internal logic in the relevant descriptions, they can be understood as processor output, reception, input and other operations, and can also be understood as sending and receiving operations performed by the radio frequency circuit and antenna. This application does not limit this.

[0090] In the eleventh aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, and the program code includes a method for executing any one of the above-mentioned first to fifth aspects and any possible implementation of the first to fifth aspects.

[0091] In the twelfth aspect, a computer program product comprising instructions is provided, which, when run on a computer, enables the computer to execute the method in any one of the above-mentioned aspects 1 to 5 and any possible implementation of the aspects 1 to 5.

[0092] In the thirteenth aspect, a chip is provided, which includes a processor and a communication interface. The processor reads instructions stored in a memory through the communication interface and executes the method in any one of the above-mentioned first to fifth aspects and any possible implementation method of the first to fifth aspects.

[0093] Optionally, as an implementation method, the chip also includes a memory, in which a computer program or instruction is stored, and the processor is used to execute the computer program or instruction stored on the memory. When the computer program or instruction is executed, the processor is used to execute the method in any aspect of the first to fifth aspects above and any possible implementation method of the first to fifth aspects.

[0094] The description of the advantageous effects of any of the second to thirteenth aspects etc. may refer to the description of the advantageous effects of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0095] FIG1 is a schematic diagram of a communication system provided in an embodiment of the present application.

[0096] FIG2 is a time-frequency diagram of sub-band full-duplex.

[0097] FIG3 is a schematic flowchart of a communication method provided in an embodiment of the present application.

[0098] FIG4 is a schematic flowchart of another communication method provided in an embodiment of the present application.

[0099] FIG5 is a schematic block diagram of a communication device 500 provided in an embodiment of the present application.

[0100] FIG6 is a schematic block diagram of a communication device 600 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0101] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0102] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, fifth generation (5G), new radio (NR), long term evolution (LTE), Internet of Things (IoT), wireless fidelity (WiFi), wireless communications related to the 3rd Generation Partnership Project (3GPP), or other wireless communications that may appear in the future.

[0103] Figure 1 is a schematic diagram of a communication system provided by an embodiment of the present application. The communication system 100 includes multiple network devices, such as the first network device 110 and the second network device 120 shown in Figure 1. Each network device can communicate with at least one terminal device through a wireless link, and then exchange information. For example, the first network device 110 shown in Figure 1 communicates with the terminal device 130 through a wireless link, and the second network device 120 communicates with the terminal device 140 and the terminal device 150 through a wireless link. Network devices can also communicate with each other through wired or wireless links, and then exchange information. For example, the first network device 110 and the second network device 120 shown in Figure 1 can communicate through a wireless link or through a wired communication port through the Xn or F1 port. It can be understood that network devices and terminal devices can also be referred to as communication devices.

[0104] A network device is a network-side device with wireless transceiver functions. A network device may be a device in a radio access network (RAN) that provides wireless communication functions for terminal devices, and is referred to as a RAN device. For example, the network device may be a base station, an evolved NodeB (eNodeB), a next-generation NodeB (gNB) in a 5G mobile communication system, a base station that has been subsequently evolved by 3GPP, a transmission reception point (TRP), an access node in a WiFi system, a wireless relay node, a wireless backhaul node, etc. In communication systems using different radio access technologies (RATs), the names of devices with base station functions may vary. For example, in an LTE system, it may be called an eNB or eNodeB, and in a 5G system or NR system, it may be called a gNB. This application does not limit the specific name of the base station. A network device may include one or more co-located or non-co-located transmission and reception points. For another example, a network device may include one or more centralized units (CUs), one or more distributed units (DUs), or one or more CUs and one or more DUs. Exemplarily, the functions of the CU can be implemented by one entity or different entities. For example, the functions of the CU are further divided, that is, the control plane and the user plane are separated and implemented through different entities, namely the control plane CU entity (i.e., CU-CP entity) and the user plane CU entity (i.e., CU-UP entity). The CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the functions of the access network device. For example, the CU is responsible for processing non-real-time protocols and services, and implementing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. In this way, some functions of the wireless access network device can be implemented through multiple network function entities. These network function entities can be network elements in hardware devices, or they can be software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform). The network device may also include an active antenna unit (AAU).AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by DU, or sent by DU+AAU. It can be understood that the network device can be a device including one or more of the CU node, DU node, and AAU node. In addition, the CU can be divided into a network device in the access network (radio access network, RAN), or the CU can be divided into a network device in the core network (core network, CN), and this application does not limit this. For example, in the vehicle to everything (V2X) technology, the access network device can be a road side unit (RSU). Multiple access network devices in the communication system can be base stations of the same type or different types. The base station can communicate with the terminal device, or it can communicate with the terminal device through a relay station. In the embodiments of the present application, the apparatus for implementing the network device function may be the network device itself, or may be an apparatus capable of supporting the network device in implementing the function, such as a chip system or a combination of devices or components capable of implementing the access network device function, which may be installed in the network device. In the embodiments of the present application, the chip system may be composed of a chip or may include a chip and other discrete components.

[0105] A terminal device is a user-side device with wireless transceiver capabilities. It can be a fixed device, mobile device, handheld device (such as a mobile phone), wearable device, in-vehicle device, or a wireless device built into any of the above devices (such as a communication module, modem, or chip system). Terminal devices are used to connect people, objects, and machines, and can be used in a wide range of scenarios, such as cellular communications, device-to-device (D2D) communications, vehicle-to-everything (V2X) communications, machine-to-machine / machine-type communications (M2M / MTC) communications, the Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical care, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, drones, robots, and other scenarios. Exemplarily, the terminal device may be a handheld terminal in cellular communication, a communication device in D2D, an IoT device in MTC, a surveillance camera in intelligent transportation and smart cities, or a communication device on a drone, etc. The terminal device may sometimes be referred to as user equipment (UE), user terminal, user device, user unit, user station, terminal, access terminal, access station, UE station, remote station, mobile device or wireless communication device, etc. In the embodiment of the present application, the device for realizing the function of the terminal device may be the terminal device, or may be a device that can support the terminal device to realize the function, such as a chip system or a combination device or component that can realize the function of the terminal device, and the device may be installed in the terminal device.

[0106] To facilitate understanding of the embodiments of the present application, the concepts and related processes involved in the present application are first introduced.

[0107] 1. SBFD: In the SBFD scheme, a carrier or a bandwidth part (BWP) is divided into multiple subbands, and the transmission directions of different subbands can be different, that is, a carrier includes a first subband and a second subband, and the transmission directions of the first subband and the second subband are different. It should be noted that the first subband and the second subband refer to two types of subbands with different transmission directions, and does not mean that a carrier contains only two subbands. For example, a carrier includes subband #1 and subband #2, wherein the transmission directions of subband #1 and subband #2 are different. Alternatively, a carrier includes subband #1, subband #2 and subband #3, wherein the transmission directions of subband #1 and subband #3 are the same, and the transmission directions of subband #1 and subband #2 are different.

[0108] 2. SBFD Time Unit: Frequency resources within an SBFD time unit include uplink frequency resources and downlink frequency resources. Uplink frequency resources are used for uplink transmission, while downlink frequency resources are used for downlink transmission. For example, the time-frequency partitioning of a typical SBFD solution is shown in Figure 2, where the horizontal axis represents the time domain and the vertical axis represents the frequency domain. The two rectangles filled with left slashes in Figure 2 represent a set of time-frequency resources for downlink transmission, and the rectangle filled with vertical bars represents a set of time-frequency resources for uplink transmission. The time domain resources within the time domain range occupied by these three time-frequency resources are called an SBFD time unit.

[0109] 3. CBF: Also known as beam nulling technology, it points the null point of the downlink beam of a network device toward other network devices, suppressing CLI caused by the downlink signal of the network device on other network devices.

[0110] To implement CBF technology, network devices need to obtain channel information (or other relevant information) between other network devices, which requires cooperation between network devices. For example, network devices perform channel measurements and report the measurement results.

[0111] However, current network devices lack effective inter-device measurement and reporting support. For example, they lack the necessary information exchange to ensure duplicate measurements or missed measurements. Another example is the lack of reporting information necessary to support CBF (which serves as input parameters). This can lead to inefficient or even impossible CBF execution between network devices.

[0112] In view of this, the present application proposes an uplink transmission method that can effectively solve the above technical problems. The method proposed in the present application is described in detail below.

[0113] As shown in FIG3 , FIG3 is a schematic flowchart of a communication method provided in an embodiment of the present application.

[0114] S310: The first network device sends first information and second information to the second network device.

[0115] The first information instructs the second network device to report third information to the first network device, the third information is used to suppress cross-link interference of the first network device on the second network device, and the third information includes a first measurement result, which is a measurement result of the second network device measuring the first signal sent by the first network device.

[0116] In a possible implementation, the first information may be used to indicate a measurement value reported by the second network device to the first network device. That is, the first information may be used to indicate that the third information includes at least one of the following:

[0117] 1. Channel Matrix: The channel matrix between the first network device and the second network device. It should be understood that the channel matrix is ​​a two-dimensional matrix, with the rows representing the antenna ports of the second network device and the columns representing the antenna ports of the first network device.

[0118] 2. First Matrix: The first matrix is ​​used to suppress cross-link interference from the first network device to the second network device. Exemplarily, the first matrix may be a CBF matrix.

[0119] Optionally, the first matrix is ​​composed of one or more columns of a right singular matrix obtained by decomposing the channel matrix through SVD.

[0120] Optionally, the first matrix is ​​composed of one or more columns corresponding to the largest one or more singular values ​​(or eigenvalues ​​corresponding to the singular values) in a right singular matrix obtained by SVD decomposition of the channel matrix.

[0121] The rows of the first matrix are antenna ports of the first network device.

[0122] 3. First Matrix Indication Information: The first matrix indication information is used to determine the first matrix. Exemplarily, the first matrix indication information may include an index of the first matrix, and the corresponding first matrix may be determined based on the index. The first matrix indication information is quantized based on the first matrix. One possible quantization method is to use a downlink codebook to determine the first matrix indication information.

[0123] 4. First zenith angle and azimuth angle set: The first zenith angle and azimuth angle set is used to suppress cross-link interference of the first network device to the second network device. Each first zenith angle and azimuth angle set includes at least one element, and each element includes a zenith angle and an azimuth angle.

[0124] Optionally, the zenith angle and the azimuth angle are the zenith angle of departure (ZOD) and the azimuth angle of departure (AOD) of one or more paths from the first network device to the second network device in the local coordinate system (LCS) of the first network device.

[0125] Optionally, the first zenith angle and azimuth angle set consists of one or more elements of ZOD and AOD of one or more strongest paths from the first network device to the second network device under the LCS of the first network device.

[0126] Optionally, the zenith angle and the azimuth angle are determined according to the geographical locations (eg, three-dimensional coordinates (longitude, latitude, altitude), etc.) of the first network device and the second network device.

[0127] Optionally, the zenith angle and the azimuth angle are determined according to a channel matrix.

[0128] 5. First level number: The first level number refers to the number of columns in the first matrix. If the first level number is 1, the first matrix is ​​a one-dimensional matrix. If the first level number is greater than 1, the first matrix is ​​a two-dimensional matrix.

[0129] Exemplarily, candidate values ​​for the first number of layers are 1, 2, or 4.

[0130] Optionally, the first layer number is determined by the second network device measuring the first signal. Exemplarily, the second network device estimates an appropriate first layer number to minimize the impact of the CLI caused by the first network device on the second network device and minimize downlink performance loss caused by the first network device suppressing the CLI.

[0131] 6. First quantity: The first quantity refers to the number of elements included in the first set of zenith angles and azimuth angles, where one element in the first set of zenith angles and azimuth angles includes a zenith angle and an azimuth angle.

[0132] Exemplarily, the first number of candidate values ​​is 1, 2 or 4.

[0133] It should be understood that the first number and the first layer number have similar functions, but serve different objects. The first number is applied to the first apex angle and azimuth angle set, and the first layer number is applied to the first matrix.

[0134] 7. First request information: The first request information is used to request whether to suppress cross-link interference of the first network device to the second network device. Exemplarily, the first request information includes a suppress CLI request signaling: the second network device requests the first network device to execute or not execute suppress CLI on it.

[0135] Optionally, the CLI suppression request signaling occupies 1 bit of resources, "0" indicates that the first network device does not suppress CLI on the second network device; "1" indicates that the first network device suppresses CLI on the second network device; or "0" indicates that the first network device suppresses CLI on the second network device; "1" indicates that the first network device does not suppress CLI on the second network device.

[0136] 8. First receiving power and / or first path loss: The first receiving power is the receiving power of the second network device receiving the first signal. For example, the first signal is a CSI-RS reference signal and the first receiving power is CSI-RS RSRP; the first path loss is the path loss from the first network device to the second network device.

[0137] The first received power and / or the first path loss may be used to determine whether to suppress cross-link interference from the first network device to the second network device.

[0138] Exemplarily, when the first received power is greater than the first threshold, or the first path loss is less than the second threshold, the cross-link interference of the first network device to the second network device is suppressed; conversely, if the first received power is less than the first threshold, or the first path loss is greater than the second threshold, the cross-link interference of the first network device to the second network device is not suppressed.

[0139] Among them, the judgment action can be performed by the first network device or by the second network device. If it is performed by the first network device, the first information needs to indicate that the third information includes the first receiving power and / or the first path loss. If it is performed by the second network device, the first information needs to indicate that the third information includes the first request information.

[0140] It should be noted that the first layer number and the first quantity can be sent by the first network device to the second network device. Exemplarily, the first information includes second indication information, and the second indication information is used to indicate the first layer number and / or the first quantity.

[0141] In an embodiment of the present application, if the first network device does not indicate the specific value of the first number of layers and / or the first quantity to the second network device, the second network device can determine it by itself; if the first network device indicates the specific value of the first number of layers and / or the first quantity to the second network device, the second network device can determine the first matrix or the indication information of the first matrix based on the specific value of the first number of layers, and determine the first apex angle and azimuth angle set based on the specific value of the first quantity.

[0142] By indicating the reporting amount that needs to be included in the third information through the first information, it can be ensured that the first network device can suppress cross-link interference according to the third information and improve the reliability of communication. In addition, the second network device can be prevented from sending unnecessary information through advance indication, thereby improving the efficiency of communication.

[0143] In an embodiment of the present application, the first information may include first indication information, and the first indication information is used to indicate the frequency domain configuration for reporting the third information, including the reporting frequency band of the third information, wherein the reporting frequency band of the third information may be broadband or sub-band.

[0144] In one possible implementation, if the first indication information indicates that the reporting band of the third information is a subband, the first indication information may also indicate the subband that needs to be reported, that is, the first network device may not require the second network device to report the measurement results of all subbands. The first network device indicates the specific subband that needs to be reported through the first indication information, and the subband that needs to be reported can be one or more.

[0145] Exemplarily, the first indication information may include a bitmap, which may indicate the subbands that need to be reported. The right side of the bitmap is the low bit, and the left side is the high bit. Each bit of the bitmap corresponds to a subband. "0" in the bitmap indicates that the subband corresponding to the bit does not need to be reported, and "1" indicates that the subband corresponding to the bit needs to be reported. For example, the number of subbands is 5, and the corresponding 5-bit bitmap is 11001. The bitmap corresponds to subbands 1 to 5 from low to high, and the bitmap indicates that the subbands that need to be reported are subbands 1, 4, and 5.

[0146] Furthermore, the first indication information may further indicate the length of the subband and the number of subbands. For example, the first indication information may further indicate that the number of subbands is 5 and the length of each subband is 10 resource blocks (RBs).

[0147] In one possible implementation, the first network device may further send first configuration information to the second network device, where the first configuration information is used to configure a first reporting setting (s), and the first reporting setting is used for the second network device to report the third information. In particular, the first configuration information may be included in the first information.

[0148] Exemplarily, the first reporting setting includes one or more of the following parameters:

[0149] 1. Network Device ID: The ID of the network device for which the first reporting setting is configured. For example, in this embodiment, the network device ID is the ID of the first network device. It should be understood that this embodiment uses only two network devices as an example. In practice, other network devices besides the first network device may also configure reporting settings for the second network device. To distinguish reporting settings configured on different network devices and to identify the network device to which the third information is fed back, the network device ID must be included in the reporting settings; that is, the second network device will only report the third information to the network device indicated by the network device ID in the first reporting setting.

[0150] 2. Reporting setting ID: It should be understood that the network device ID and the reporting setting ID can uniquely identify a first reporting setting.

[0151] 3. Measurement resource ID: indicates the measurement resource corresponding to the first signal from which the second network device measures the first measurement result. It should be understood that in addition to using the measurement resource ID, the network device ID in the first reporting setting also needs to be used to jointly determine a first measurement resource.

[0152] 4. Time domain behavior of reporting third-party information:

[0153] If the third information is reported periodically, the first reporting setting includes: a reporting period, and the second network device periodically reports the first measurement result according to the reporting period.

[0154] Here, when the first reporting setting is configured, it takes effect immediately. It should be understood that “takes effect immediately” means that the second network device immediately reports the third information according to the first reporting setting.

[0155] If the third information is reported semi-continuously, the first reporting setting includes: a reporting period and a first signaling, and the first signaling activates or deactivates the first reporting setting. If activated, the second network device periodically reports the third information according to the reporting period; if deactivated, the second network device does not report the third information.

[0156] The first signaling includes activation / deactivation information. Exemplarily, the activation / deactivation information occupies 1 bit of resources, where "0" represents deactivation and "1" represents activation; or "0" represents activation and "1" represents deactivation.

[0157] The first signaling further includes a reporting setting ID, where the reporting setting ID indicates an activated or deactivated first reporting setting.

[0158] If the third information is not reported periodically, the first reporting setting includes a second signaling, and the second signaling is used to trigger the reporting. After the triggering, the second network device reports the third information once.

[0159] In a possible implementation manner, the first reporting setting may also include information indicating that the third information includes parameters.

[0160] In one possible implementation, the first network device may indicate multiple first reporting settings. Exemplarily, the first network device indicates a first reporting setting set, where the first reporting setting set includes at least one first reporting setting; or exemplary, the first network device indicates multiple first reporting setting sets.

[0161] In an embodiment of the present application, the second information indicates a first measurement resource, which is a resource for the second network device to receive and measure a first signal, and the first signal is a reference signal used for measurement between network devices. Exemplarily, the first signal is a CSI-RS.

[0162] In a possible implementation manner, the first network device sends the first signal according to the first measurement resource.

[0163] Optionally, the first measurement resource includes one or more of the following parameters:

[0164] 1. Network device ID: The ID of the network device that configures the first measurement resource. In this embodiment, the network device ID is the ID of the first network device. It should be understood that this embodiment uses only two network devices as an example. In practice, in addition to the first network device, other network devices may also configure measurement resources for the second network device. To distinguish measurement resources configured for different network devices, the network device ID must be included in the measurement resource.

[0165] 2. Measurement resource ID: It should be understood that the network device ID and the measurement resource ID can uniquely identify a first measurement resource.

[0166] 3. The time domain resources occupied by the first signal. The time domain resources in the embodiment of the present application may include at least one of the symbol position of the first signal in a time slot, the period of the first signal, the bias of the first signal, the start time of the first signal and the time domain behavior of the first signal.

[0167] Exemplarily, the symbol position of the first signal in a time slot refers to the OFDM symbol index of the first signal in a time slot, which can be indicated by the field firstOFDMSymbolInTimeDomain and / or the field firstOFDMSymbolInTimeDomain2 in the RRC element CSI-RS-ResourceMapping; the period of the first signal and the offset of the first signal can be indicated by the field CSI-ResourcePeriodicityAndOffset in the RRC element NZP-CSI-RS-Resource.

[0168] The start time of the first signal refers to the absolute time when the first signal is sent for the first time. For example, the start time of the first signal is UTC time, and the unit is seconds, milliseconds, microseconds, nanoseconds, etc.

[0169] The time domain behavior of the first signal includes: periodically receiving the first signal, semi-continuously receiving the first signal, and aperiodically receiving the first signal.

[0170] The second network device may periodically receive the first signal. For example, the second network device periodically receives and measures the first signal. Optionally, the first network device periodically transmits the first signal. When the first resource configuration takes effect immediately, it should be understood that "immediately taking effect" means that the second network device immediately receives and measures the first signal according to the first measurement resource.

[0171] The second network device may also semi-continuously receive the first signal. Exemplarily, the second information includes third signaling, which activates or deactivates the first measurement resource. Upon activation, the second network device periodically receives and measures the first signal, and optionally, the first network device periodically transmits the first signal. Upon deactivation, the second network device does not receive or measure the first signal, and optionally, the first network device does not transmit the first signal.

[0172] The third signaling may include activation / deactivation information, which occupies 1 bit of resources. For example, "0" indicates deactivation and "1" indicates activation; or "0" indicates activation and "1" indicates deactivation.

[0173] The third signaling may further include a measurement resource ID, where the measurement resource ID indicates the activated or deactivated first measurement resource.

[0174] The second network device may also receive the first signal aperiodically. For example, the first information includes fourth signaling, and the fourth signaling triggers the first measurement resource. After the triggering, the second network device receives and measures the first signal once. Optionally, the first network device sends the first signal once.

[0175] In a possible implementation, the fourth signaling includes the start time of the first signal. Exemplarily, the start time of the first signal is UTC time, in units of seconds, milliseconds, microseconds, nanoseconds, etc.

[0176] 4. The frequency domain resources occupied by the first signal. The time domain resources in the embodiment of the present application may include at least one of the resource element (RE) position of the first signal within an RB, the frequency domain range of the first signal, the frequency density of the first signal, sequence resources, spatial domain resources and power domain resources.

[0177] The first signal frequency domain range includes the starting RB and the number of RBs included. Exemplarily, the first signal frequency domain range is indicated by the freqBand field in the RRC information element CSI-RS-ResourceMapping, including the starting RB and the number of RBs N, that is, the frequency bandwidth used by the CSI-RS is N consecutive RBs starting from the starting RB, and the starting RB and the number of RBs N are based on the partial bandwidth (Bandwidth Part, BWP).

[0178] The frequency density of the first signal refers to the density of the first signal in the frequency domain. For example, the frequency density of the first signal can be given by the density field in the RRC information element CSI-RS-ResourceMapping. It should be understood that within the configured bandwidth, a first signal can be configured for each RB, in which case the frequency density of the first signal is 1. Alternatively, a first signal can be configured for every RB, in which case the frequency density of the first signal is 0.5.

[0179] The sequence resource may include sequence scrambling information. Exemplarily, the sequence scrambling information may be determined by scramblingID or sequenceGenerationConfig in a higher-layer parameter.

[0180] The spatial domain resources include the number of ports of the first signal and the code division multiplexing (CDM) type of the first signal. For example, the number of ports of the first signal can be indicated by the field nrofPorts in the RRC information element CSI-RS-ResourceMapping, and the CDM type of the first signal can be indicated by the field cdm-Type in the RRC information element CSI-RS-ResourceMapping.

[0181] The power domain resource includes the transmit power of the first signal on a frequency unit. The transmit power of the first signal on a frequency unit is mainly used by the second network device to determine the path loss between the first network device and the second network device. For example, the transmit power of the first signal on a RE is expressed in dBm.

[0182] In a possible implementation, the second information may indicate multiple first measurement resources. Exemplarily, the second information may indicate a first measurement resource set, where the first measurement resource set includes at least one first measurement resource. The first information may also indicate multiple first measurement resource sets.

[0183] In a possible implementation manner, there is a certain relationship between the first measurement resource and the first reporting setting.

[0184] The first possible relationship: If the first reporting setting does not include one or more of the measurement resource ID, the reported time domain behavior mode, and the reporting period, the second network device measures the corresponding first signal using the first measurement resource configured, activated, or triggered by the second information, and then determines the first measurement result based on the first information and reports it to the first network device. In this solution, the reported time domain behavior mode is consistent with the measured time domain behavior mode, as described below.

[0185] When the time domain behavior mode reported by the second network device and the time domain behavior mode measured are both periodic, if the first measurement resource is periodic and the first reporting setting does not include a reporting period, the second network device periodically reports the first measurement result according to the measurement period; if the first measurement resource is periodic and the first reporting setting includes a reporting period, the second network device periodically reports the first measurement result according to the reporting period.

[0186] It should be understood that after the first measurement resource and the first reporting setting are configured, the measurement and reporting process takes effect immediately.

[0187] In the case that the time domain behavior mode reported by the second network device and the time domain behavior mode measured are both semi-continuous, if the first measurement resource is semi-continuous and the first reporting setting does not include a reporting period, the second network device will periodically report the first measurement result according to the measurement period; if the first measurement resource is semi-continuous and the first reporting setting includes a reporting period, the second network device will periodically report the first measurement result according to the reporting period.

[0188] It should be understood that the measurement and reporting process will only take effect after the first reporting setting is configured and the first measurement resource is activated. If the first reporting setting is configured but the first measurement resource is deactivated, the second network device will cancel the measurement and reporting process of the first signal corresponding to the first measurement resource.

[0189] In the case that the time domain behavior mode reported by the second network device and the time domain behavior mode measured are both non-periodic, a measurement and reporting process is effective once after configuring the first reporting setting and triggering the first measurement resource.

[0190] The second possible relationship: the first reporting setting includes the measurement resource ID, the reporting time domain behavior mode and the reporting period (Note: non-periodic reporting does not require a reporting period).

[0191] In the case where the time domain behavior mode reported by the second network device is periodic reporting, the first measurement resource indicated by the measurement resource ID in the first reporting setting must be a periodic measurement resource. It should be understood that periodic reporting only supports periodic measurement.

[0192] Optionally, after the first configuration information configures the first reporting setting, the second network device periodically measures the first signal corresponding to the first measurement resource indicated by the measurement resource ID in the first reporting setting, and periodically feeds back the first measurement result; wherein, the measurement period is indicated by the measurement period in the first measurement resource, and the feedback period is indicated by the reporting period in the first reporting setting.

[0193] When the time domain behavior mode reported by the second network device is semi-persistent reporting, the first measurement resource indicated by the measurement resource ID in the first reporting setting must be a periodic measurement resource or a semi-persistent measurement resource. It should be understood that semi-persistent reporting only supports periodic measurement and semi-persistent measurement.

[0194] Optionally, after the first configuration information activates the first reporting setting, if the first measurement resource indicated by the measurement resource ID in the first reporting setting is periodic, the behavior of the second network device is the same as the above-mentioned periodic reporting behavior.

[0195] Optionally, after the first configuration information activates the first reporting setting, if the first measurement resource indicated by the measurement resource ID in the first reporting setting is semi-persistent, the measurement resource ID activates the first measurement resource, and the second network device periodically measures the first signal corresponding to the activated first measurement resource and periodically feeds back the first measurement result. The measurement period is indicated by the measurement period in the first measurement resource, and the feedback period is indicated by the reporting period in the first reporting setting.

[0196] It should be understood that in this solution, the first information does not need to include the first signaling to activate the first measurement resource, and this function is replaced by the measurement resource ID in the second reporting resource.

[0197] When the time domain behavior mode reported by the second network device is aperiodic reporting, the first measurement resource indicated by the measurement resource ID in the first reporting setting can be a periodic measurement resource, a semi-persistent measurement resource, or an aperiodic measurement resource. It should be understood that aperiodic reporting supports periodic measurement, semi-persistent measurement, and aperiodic measurement.

[0198] Optionally, after the first configuration information triggers the first reporting setting, if the first measurement resource indicated by the measurement resource ID in the first reporting setting is periodic, the second network device measures the first signal corresponding to the first measurement resource indicated by the measurement resource ID in the first reporting resource once, and feeds back the first measurement result once.

[0199] Optionally, after the first configuration information triggers the first reporting setting, if the first measurement resource indicated by the measurement resource ID in the first reporting setting is semi-persistent, the measurement resource ID activates the first measurement resource, and the second network device measures the first signal corresponding to the activated first measurement resource once, and feeds back the first measurement result once.

[0200] Optionally, after the first configuration information triggers the first reporting setting, if the first measurement resource indicated by the measurement resource ID in the first reporting setting is non-periodic, the measurement resource ID triggers the first measurement resource, and the second network device measures the first signal corresponding to the triggered first measurement resource once, and feeds back the first measurement result once.

[0201] It should be understood that in this solution, the second information does not need to include the fourth signaling to trigger the first measurement resource, and this function is replaced by the measurement resource ID in the first reporting setting.

[0202] It should be understood that, more accurately, the above “first measurement resource indicated by the measurement resource ID in the first reporting setting” should be “the first measurement resource indicated by the measurement resource ID and the network device ID in the first reporting setting”.

[0203] It should be understood that the difference between the two relationships is that in the first possible relationship, the first measurement resource and the first reporting setting are coupled: the first reporting setting does not indicate which measurement resource's corresponding measurement result needs to be reported, but is indicated by the second information; the first reporting setting does not need to carry the time domain behavior mode, but follows the time domain behavior mode of the first measurement resource.

[0204] On the contrary, in the second possible relationship, the first measurement resource and the first reporting setting are decoupled: the first reporting setting indicates the measurement results corresponding to the measurement resources that need to be reported, without the need for a second information indication, and the behavior of triggering and activating / deactivating the measurement resources is completed by the first reporting setting; the time domain behavior of the first reporting setting and the first measurement resource are configured separately; different measurement resources can correspond to different reporting amounts and frequency domain configurations of the reporting amounts.

[0205] S320: The first network device sends a first signal to the second network device.

[0206] The first signal is used for channel measurement, and illustratively, the first signal may include a CSI-RS signal.

[0207] S330: The second network device determines a first measurement result based on measuring the first signal.

[0208] S340: The second network device sends third information to the first network device, where the third information includes the first measurement result.

[0209] If the frequency domain configuration of the third information reported in the first information is broadband, the content of the third information includes the measurement quantity corresponding to the entire bandwidth, and the third information includes at least one of the following items according to the indication of the first information: channel matrix, first matrix, indication information of the first matrix, first apex angle and azimuth angle set, first number of layers, first quantity, first request information, first receiving power, first path loss, wherein the channel matrix, first matrix, indication information of the first matrix, first apex angle and azimuth angle set, first number of layers, first quantity and first receiving power and / or first path loss are parameters of the entire broadband, and the first request information also corresponds to the entire broadband.

[0210] If the frequency domain configuration for reporting the third information in the first information is a subband, the content of the third information includes the measurement value corresponding to each (enabled) subband. The third information may include N first matrices and / or indication information of N first matrices, each first matrix corresponding to a subband, and each first matrix indication information corresponding to a subband.

[0211] Exemplarily, the frequency domain configuration indication of the reported third information is a subband, the third information includes N parameter sets, each parameter set corresponds to a subband, and each parameter set includes the first matrix and at least one of the indication information of the first matrix.

[0212] In one possible implementation, the third information may further include at least one of the following: N first apex angle and azimuth angle sets, N first layer numbers, N first quantities, N first request information, N first receive powers, and N first path losses, where each first apex angle and azimuth angle set, each first layer number, each first quantity, each first request information, each first receive power, and each first path loss corresponds to a subband. Exemplarily, each of the N parameter sets further includes at least one of the following: the first apex angle and azimuth angle set, the first layer number, the first quantity, the first request information, the first receive power, and the first path loss.

[0213] It should be noted that the above N is a positive integer less than or equal to the number of subbands, and may refer to the number of all subbands or the number of all subbands that need to be reported.

[0214] In one possible implementation, the third information may also include at least one of the following: a first apex angle and azimuth angle set, a first number of layers, a first quantity, a first request information, a first receiving power, and a first path loss, wherein the content included in the above third information corresponds to all subbands. Exemplarily, the first request information may request to suppress CLI on all subbands.

[0215] It should be noted that all subbands may refer to all subbands that receive reference signals, or may refer to all subbands that need to be reported as indicated by the first network device.

[0216] It should be understood that the content included in the third information may partially correspond to one subband and partially correspond to all subbands. Exemplarily, the third information may include N first matrices and one first request information.

[0217] It should be understood that the reporting amount specifically included in the third information may have been indicated in the first information, and its specific content can refer to the description of the first information in S310.

[0218] S350: The first network device sends a second signal to the terminal device according to the third information.

[0219] Optionally, the first network device determines the precoding used to send the second signal according to the third information.

[0220] Exemplarily, the first network device determines, according to the third information, a precoding method used to send the second signal, including but not limited to the following two possible methods:

[0221] Method 1: Determine the precoding used for sending the second signal according to the zenith angle and the azimuth angle.

[0222] Step 1: The first network device calculates the channel matrix H between it and the terminal device. i Determine the initial precoding V i .

[0223] V i It is H i The right singular vector after SVD decomposition, i=0,1,…,N UE -1;

[0224] H i is a two-dimensional matrix, the rows are antenna ports of the terminal device, and the columns are antenna ports of the first network device;

[0225] V i is a two-dimensional matrix, where the rows are the antenna ports of the first network device and the columns are the number of flows;

[0226] N UE The number of terminal devices served by the first network device.

[0227] Step 2: According to the zenith angle θ and azimuth angle Determine the first matrix V CBF :

[0228] The vertical weight vector w is a one-dimensional column vector with a length of M p , M p is the number of antenna ports of the first network device in one polarization direction in the vertical direction;

[0229] The horizontal weight vector v is a one-dimensional column vector with a length of N p , N p is the number of antenna ports of the first network device in one polarization direction in the horizontal direction;

[0230] λ is the signal wavelength, d V is the distance between two adjacent antenna ports in the reset direction, d H is the distance between two adjacent antenna ports in the horizontal direction, represents the Kronecker product.

[0231] Step 3: According to the first matrix V CBF Determine the precoding W for sending the second signal i ,i=0,1,…,N UE -1: W=V[(V H V) -1 ] H

[0232] It should be understood that in method 1, the first measurement result must include zenith angle and azimuth angle information, that is, the third information includes zenith angle and azimuth angle information.

[0233] Method 2: Determine the precoding used to send the second signal according to the first matrix. It should be understood that method 2 is similar to method 1, but only steps 1 and 3 are performed, and V in step 3 is replaced by CBF The first matrix is ​​replaced by the first matrix in the first measurement result or the first matrix indicated by the indication information of the first matrix. Another difference is that the number of columns of the first matrix is ​​indicated by the first layer number in the first measurement result.

[0234] It should be understood that in method 2, the first measurement result must include the first matrix or indication information of the first matrix, and the first layer number, that is, the third information includes the first matrix or indication information of the first matrix, and the first layer number.

[0235] In the embodiment of the present application, the first matrix is ​​a two-dimensional matrix, which can reduce resource overhead.

[0236] When the reported frequency band is broadband, if the third information includes request information, and the request information requests the first network device to perform CLI suppression on the second network device, then the first network device determines the precoding used to send the second signal based on the third information, such as method 1 and method 2, but is not limited to these two methods.

[0237] If the third information includes request information requesting the first network device not to suppress CLI on the second network device, the first network device will not determine the precoding used to send the second signal based on the third information. Exemplarily, the precoding used to send the second signal is determined using existing technology.

[0238] If the third information does not include request information but includes CSI-RS RSRP or path loss, the first network device may determine whether to suppress CLI on the second network device based on the CSI-RS RSRP or path loss. For example, if the CSI-RS RSRP is greater than a first threshold, or the path loss is less than a second threshold, the first network device suppresses CLI on the second network device; conversely, if the CSI-RS RSRP is less than or equal to the first threshold, or the path loss is greater than or equal to the second threshold, the first network device does not suppress CLI on the second network device.

[0239] When the reported frequency band is a subband, if the third information includes multiple request information, the request information requests the first network device to perform CLI suppression on the second network device, and each request information corresponds to a subband, then the first network device determines the precoding used to send the second signal based on the third information only on the subband corresponding to the request information, such as method 1 and method 2, but not limited to these two methods.

[0240] If the third information includes multiple request information, the request information requests the first network device not to perform CLI suppression on the second network device, and each request information corresponds to a subband, then the first network device will not determine the precoding used to send the second signal on the subband corresponding to the request information based on the third information. Exemplarily, the precoding used to send the second signal on the subband corresponding to the request information is determined using existing technology.

[0241] If the third information does not include request information but includes multiple CSI-RS RSRPs or multiple path losses, the first network device may determine whether to suppress CLI on the second network device based on the CSI-RS RSRP or path loss. Exemplarily, the first network device suppresses CLI on the second network device in a subband where the CSI-RS RSRP is greater than a first threshold or where the path loss is less than a second threshold; the first network device does not suppress CLI on the second network device in a subband where the CSI-RS RSRP is less than or equal to the first threshold or where the path loss is greater than or equal to the second threshold.

[0242] CBF technology is used as an example of suppressing CLI between network devices. Accordingly, the above-mentioned first matrix can be called a CBF matrix. However, the technology for suppressing cross-link interference can also use other methods, or the CBF technology can also use other names. Accordingly, the name of the first matrix can also be changed accordingly. This application does not limit the method for suppressing cross-link interference between network devices.

[0243] In the embodiment of the present application, the first matrix can be transmitted in a variety of ways to suppress cross-link interference, thereby improving the flexibility of communication.

[0244] In a possible implementation, between steps S310 and S320, the embodiment of the present application may further include S360 and S370.

[0245] S360: The second network device sends fourth information to the first network device, where the fourth information is used to instruct the first network device to modify the first measurement resource.

[0246] The fourth information includes: measurement resource modification request signaling, used to notify the first network device to modify the first measurement resource.

[0247] Optionally, the fourth information further includes: recommended or not recommended measurement parameters, for example:

[0248] Measurement resource ID;

[0249] Time domain resources, including period, offset, symbol position, etc.;

[0250] Frequency domain resources, including bandwidth, density, RE location, etc.

[0251] Airspace resources, including: number of ports, CDM type, etc.;

[0252] Power domain resources: transmit power, etc.

[0253] It should be understood that if the second network device finds that the first measurement resource configured for it by the first network device is inappropriate, for example, conflicts with measurement resources configured for it by other network devices, the second network device may send a fourth message requesting the first network device to modify the first measurement resource (based on recommended or non-recommended measurement parameters). It should be understood that after receiving the fourth message, the first network device may redetermine the first measurement resource.

[0254] S370: The first network device sends the fifth information and / or the sixth information to the second network device.

[0255] The fifth information is used to re-indicate the first measurement resource, including:

[0256] Method 1: The fifth information reconfigures the first measurement resource; it should be understood that this method is applicable to periodic measurement resources.

[0257] Method 2: The fifth information includes fifth signaling, and the fifth signaling deactivates the previous first measurement resource and activates the new first measurement resource at the same time; it should be understood that this method is applicable to semi-persistent measurement resources.

[0258] Method 3: the fifth information includes sixth signaling, and the sixth signaling triggers a new first measurement resource; it should be understood that this method is applicable to non-periodic measurement resources.

[0259] The sixth information is used to re-indicate the first reporting setting, including:

[0260] Method 1: The sixth information reconfigures the first reporting setting; it should be understood that this method is applicable to periodic reporting resources.

[0261] Method 2: The sixth information includes the seventh signaling, and the seventh signaling deactivates the previous first reporting setting and activates the new first reporting setting at the same time; it should be understood that this method is applicable to semi-continuous reporting resources.

[0262] Method 3: The sixth information includes the eighth signaling, and the eighth signaling triggers a new first reporting setting; it should be understood that this method is applicable to non-periodic reporting resources.

[0263] By sending the fourth information to modify the first measurement resource, inappropriate resources can be modified to improve communication reliability.

[0264] Based on the above scheme, the first network device can obtain parameters that can be used to suppress cross-link interference from the third information, so that the first network device can perform the action of suppressing cross-link interference, thereby improving the communication quality and reliability. The first network device indicates the measurement parameters that need to be reported by the second network device through the first information, thereby improving the efficiency of communication. The start time of the first signal exchanged between the first network device and the second network device can align the sending time of the first signal with the measurement time, thereby improving the accuracy of the measurement. In an embodiment of the present application, a two-dimensional matrix can be used to report the measurement results, thereby reducing resource overhead.

[0265] It should be understood that in the above method, the first network device and the second network device exchange measurement and reporting information with each other. In fact, the measurement and reporting information can also be sent to the first network device and the second network device by other devices.

[0266] As shown in FIG4 , FIG4 is a schematic flowchart of another communication method provided in an embodiment of the present application.

[0267] S410: The third network device sends first information to the first network device, and sends second information and third information to the second network device.

[0268] Optionally, the third network device is an OAM, and the first network device and the second network device are gNBs.

[0269] Optionally, the third network device is a gNB-CU, and the first network device and the second network device are gNB-DUs.

[0270] It should be understood that the third network device is a central node.

[0271] The first information indicates a first sending resource, which is used by the first network device to send a first signal. The first sending resource may include at least one of a measurement resource ID, a time domain resource, a frequency domain resource, a code domain resource, a sequence resource, a spatial domain resource, and a power domain resource.

[0272] Optionally, the first information indicates multiple first transmission resources. Exemplarily, the first information indicates a first transmission resource set, the first transmission resource set includes at least one first transmission resource, or the first information indicates multiple first transmission resource sets.

[0273] S420: The third network device sends the second information and the third information to the second network device.

[0274] The second information is used to instruct the second network device to report the fourth information to the first network device. The fourth information is used to suppress cross-link interference of the first network device on the second network device. The first signal is used to determine the fourth information. For the second information, refer to the description of the first information in S310 and will not be repeated here.

[0275] The third information indicates the first measurement resource, which is used by the second network device to receive and measure the first signal, including network device ID, measurement resource ID, time domain resources, frequency domain resources, code domain resources, sequence resources, spatial domain resources, and power domain resources. For details, please refer to the description of the second information in S310, which will not be repeated here.

[0276] It should be understood that the difference between the first transmission resource and the first measurement resource is that the first transmission resource indicates the resources necessary for transmitting the first signal, while the first measurement resource indicates the resources necessary for receiving and measuring the first signal. That is, one is used for transmission, and the other is used for reception and measurement. Furthermore, the first measurement resource includes a network device ID, but the first transmission resource does not.

[0277] Optionally, the first signal is a reference signal used for measurement between network devices; illustratively, the first signal is a CSI-RS.

[0278] S430: The first network device sends a first signal to the second network device.

[0279] S440: The second network device determines a first measurement result based on measuring the first signal.

[0280] S450: The second network device sends fourth information to the first network device, where the fourth information includes the first measurement result.

[0281] For a detailed description of the fourth information, please refer to the description of the third information in S310 and will not be repeated here.

[0282] S460: The first network device sends a second signal to the terminal device according to the fourth information.

[0283] The first network device determines the precoding used to send the second signal according to the fourth information. For a specific method, please refer to the description in S350 and will not be described in detail here.

[0284] In a possible implementation, between steps S420 and S430, the embodiment of the present application may further include S470 and S480.

[0285] S470: The second network device sends fifth information to the third network device, where the fifth information is used to request the third network device to perform modification.

[0286] The fifth information includes: a network device ID and a measurement resource modification request signaling, where the measurement resource modification request signaling is used to request the third network device to perform modification.

[0287] If the network device ID indicates the first network device, the measurement resource modification request signaling requests the third network device to modify the first sending resource; if the network device ID indicates the second network device, the measurement resource modification request signaling requests the third network device to modify the first measurement resource.

[0288] It should be understood that the network device needs to let the central node know which network device's first sending resource for sending the first signal needs to be modified, and / or the network device needs to let the central node know which network device's first measurement resource for receiving the first signal needs to be modified.

[0289] Optionally, the fifth information also includes: recommended or not recommended measurement parameters, for example:

[0290] Measurement resource ID;

[0291] Time domain resources, including period, offset, symbol position, etc.;

[0292] Frequency domain resources, including bandwidth, density, RE location, etc.

[0293] Airspace resources, including: number of ports, CDM type, etc.;

[0294] Power domain resources: transmit power, etc.

[0295] It should be understood that if the second network device finds that the first measurement resource configured for it by the third network device is inappropriate, for example, it conflicts with the measurement resources configured for it by other network devices, it can send fifth information to request the third network device to make modifications (based on recommended or non-recommended measurement parameters).

[0296] S480: The third network device sends the sixth information to the first network device, and / or the third network device sends the seventh information and / or the eighth information to the second network device.

[0297] The sixth information is used to indicate the modified first sending resource.

[0298] The seventh information is used to indicate the modified first measurement resource. Refer to the description of the fifth information in S370.

[0299] The eighth information is used to indicate the modified first reporting setting, see the description of the sixth information in S370.

[0300] It should be understood that the size of the serial numbers of the above 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.

[0301] It should also be understood that in the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0302] It should also be understood that in some of the above embodiments, devices in existing network architectures are mainly used as examples for illustrative purposes, and it should be understood that the embodiments of the present application do not limit the specific form of the devices. For example, devices that can achieve the same functions in the future are applicable to the embodiments of the present application.

[0303] It can be understood that in the above-mentioned various method embodiments, the methods and operations implemented by devices (such as the above-mentioned terminal devices, network devices, etc.) can also be implemented by components of the devices (such as chips or circuits).

[0304] The method provided by the embodiment of the present application is described in detail above with reference to Figures 1 to 4. The above method is mainly introduced from the perspective of interaction between communication devices. It is understood that in order to implement the above functions, the communication device includes the corresponding hardware structure and / or software modules for performing each function.

[0305] Those skilled in the art should be aware that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed in the form of hardware or computer software driving hardware 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 to be beyond the scope of this application.

[0306] Hereinafter, the communication device provided by the embodiment of the present application will be described in detail with reference to Figures 5 and 6. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, for the content not described in detail, please refer to the method embodiment above. For the sake of brevity, some contents will not be repeated here. In the embodiment of the present application, the terminal device or network device can be divided into functional modules according to the above method example. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0307] The data transmission method provided by this application has been described in detail above. The following describes the communication device provided by this application. In one possible implementation, the device is used to implement the steps or processes corresponding to the network device in the above method embodiment. In another possible implementation, the device is used to implement the steps or processes corresponding to the terminal device in the above method embodiment.

[0308] Figure 5 is a schematic block diagram of a communication device 500 according to an embodiment of the present application. As shown in Figure 5 , the device 500 may include a communication unit 510 and a processing unit 520. The communication unit 510 may communicate with the outside world, and the processing unit 520 may be used for data processing. The communication unit 510 may also be referred to as a communication interface or a transceiver unit.

[0309] In one possible design, the device 500 can implement steps or processes corresponding to those performed by the terminal device in the above method embodiment, wherein the processing unit 520 is used to perform processing-related operations of the terminal device in the above method embodiment, and the communication unit 510 is used to perform sending-related operations of the terminal device in the above method embodiment.

[0310] In another possible design, the device 500 can implement steps or processes corresponding to those performed by the network device in the above method embodiment, wherein the communication unit 510 is used to perform reception-related operations of the network device in the above method embodiment, and the processing unit 520 is used to perform processing-related operations of the network device in the above method embodiment.

[0311] It should be understood that the device 500 here is embodied in the form of a functional unit. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combined logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art will understand that the device 500 can be specifically the terminal device in the above embodiment, and can be used to execute the various processes and / or steps corresponding to the terminal device in the above method embodiment, or the device 500 can be specifically the network device in the above embodiment, and can be used to execute the various processes and / or steps corresponding to the network device in the above method embodiment. To avoid repetition, it will not be described here.

[0312] The apparatus 500 of each of the above-mentioned solutions has the function of implementing the corresponding steps performed by the terminal device in the above-mentioned method, or the apparatus 500 of each of the above-mentioned solutions has the function of implementing the corresponding steps performed by the network device in the above-mentioned method. The functions can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the communication unit can be replaced by a transceiver (for example, the sending unit in the communication unit can be replaced by a transmitter, and the receiving unit in the communication unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor to respectively perform the sending and receiving operations and related processing operations in each method embodiment.

[0313] In addition, the above-mentioned communication unit can also be a transceiver circuit (for example, it can include a receiving circuit and a transmitting circuit), and the processing unit can be a processing circuit. In an embodiment of the present application, the device in Figure 5 can be the AP or STA in the aforementioned embodiment, or it can be a chip or a chip system, such as a system on chip (SoC). Among them, the communication unit can be an input and output circuit, a communication interface; the processing unit is a processor or microprocessor or integrated circuit integrated on the chip. This is not limited here.

[0314] Figure 6 is a schematic block diagram of a communication device 600 provided in an embodiment of the present application. The device 600 includes a processor 610 and a transceiver 620. The processor 610 and the transceiver 620 communicate with each other via an internal connection path. The processor 610 is configured to execute instructions to control the transceiver 620 to send and / or receive signals.

[0315] Optionally, the apparatus 600 may further include a memory 630, which communicates with the processor 610 and the transceiver 620 via an internal connection path. The memory 630 is used to store instructions, and the processor 610 can execute the instructions stored in the memory 630. In one possible implementation, the apparatus 600 is used to implement the various processes and steps corresponding to the terminal device in the above-mentioned method embodiment. In another possible implementation, the apparatus 600 is used to implement the various processes and steps corresponding to the network device in the above-mentioned method embodiment.

[0316] It should be understood that the device 600 can be specifically a terminal device or network device in the above-mentioned embodiment, or a chip or a chip system. Correspondingly, the transceiver 620 can be the transceiver circuit of the chip, which is not limited here. Specifically, the device 600 can be used to execute the various steps and / or processes corresponding to the terminal device or network device in the above-mentioned method embodiment. Optionally, the memory 630 may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory. For example, the memory may also store information about the device type. The processor 610 can be used to execute instructions stored in the memory, and when the processor 610 executes the instructions stored in the memory, the processor 610 is used to execute the various steps and / or processes of the above-mentioned method embodiment corresponding to the terminal device or network device.

[0317] During implementation, each step of the above method can be completed by an integrated logic circuit of the hardware in the processor or by instructions in the form of software. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware processor, or can be executed by a combination of hardware and software modules in the processor. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it will not be described in detail here.

[0318] It should be noted that the processor in the embodiments of the present application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or instructions in software form. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The processor in the embodiments of the present application can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0319] It is 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 RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0320] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

[0321] In addition, the present application also provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are run on a computer, the operations and / or processes performed by the terminal device or network device in each method embodiment of the present application are executed.

[0322] The present application also provides a computer program product, which includes computer program code or instructions. When the computer program code or instructions are run on a computer, the operations and / or processes performed by the terminal device or network device in the various method embodiments of the present application are executed.

[0323] In addition, the present application further provides a chip including a processor. A memory for storing a computer program is provided independently of the chip, and the processor is configured to execute the computer program stored in the memory so that the operations and / or processing performed by the terminal device or the network device in any one of the method embodiments are performed.

[0324] Furthermore, the chip may further include a communication interface. The communication interface may be an input / output interface, or an interface circuit, etc. Furthermore, the chip may further include a memory.

[0325] In addition, the present application also provides a communication system, including the network device in the embodiments of the present application.

[0326] It should also be noted that the memory described herein is intended to comprise, but not be limited to, these and any other suitable types of memory.

[0327] Those skilled in the art will appreciate that the various exemplary units and algorithmic steps described in conjunction with the embodiments disclosed herein can be implemented using electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application. Those skilled in the art will clearly understand that, for ease of description and brevity, the specific operating 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. 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 illustrative. For example, the division of the units described is merely a logical functional division. In actual implementation, other divisions may be used, such as multiple units or components being combined or integrated into another system, or some features being omitted or not implemented. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interface, or indirect coupling or communication connection between devices or units, which may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate, and the components displayed 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 the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, the functional units in the various embodiments 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.

[0328] 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, server, or 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 ROM, a RAM, a magnetic disk, or an optical disk.

[0329] It should be understood that references to "embodiments" throughout this specification mean that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present application. Therefore, various embodiments throughout this specification do not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0330] It should also be understood that the ordinal numbers "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to define the size, content, order, timing, priority, or importance of the multiple objects. For example, the first information and the second information do not indicate differences in information size, content, priority, or importance.

[0331] It should also be understood that in this application, "when", "if" and "if" all mean that the network element will make corresponding processing under certain objective circumstances, which is not a time limit, and does not require the network element to make judgment actions when implementing it, nor does it mean that there are other limitations.

[0332] It should also be understood that, in this application, "at least one" means one or more, and "plurality" means two or more. "At least one item" or similar expressions refers to one or more items, that is, any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a, b, and c.

[0333] It should also be understood that expressions similar to "the item includes one or more of the following: A, B, and C" in this application generally mean, unless otherwise specified, that the item can be any one of the following: A; B; C; A and B; A and C; B and C; A, B and C; A and A; A, A and A; A, A and B; A, A and C, A, B and B; A, C and C; B and B, B, B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C. The above example uses A, B, and C as an example to illustrate the optional items of the item. When the expression is "the item includes at least one of the following: A, B, ..., and X", that is, when the expression contains more elements, the items to which the item can be applied can also be obtained according to the above rules.

[0334] It should also be understood that the term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A alone, including A and B, and B alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects are in an "or" relationship. For example, "A / B" means: A or B.

[0335] It should also be understood that in each embodiment of the present application, "A corresponds to B" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B based solely on A, and B can also be determined based on A and / or other information.

[0336] 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: A first network device sends first information and second information to a second network device, where the first information is used to instruct the second network device to report third information, where the third information is used to suppress cross-link interference of the first network device on the second network device, where the second information is used to configure a first measurement resource, where the first measurement resource is used for the second network device to receive a first signal, and where the first signal is used to determine the third information; The first network device sends the first signal to the second network device; The first network device receives the third information from the second network device.

2. The method according to claim 1, characterized in that: The third information includes at least one of the following: a first matrix, wherein the first matrix is ​​used to suppress cross-link interference of the first network device on the second network device; Indication information of a first matrix, where the indication information of the first matrix is ​​used to determine the first matrix; A first zenith angle and azimuth angle set is provided, wherein the first zenith angle and azimuth angle set is used to suppress cross-link interference of the first network device to the second network device.

3. The method according to claim 2, characterized in that The third information also includes a first layer number and / or a first quantity, wherein the first layer number includes the number of columns of the first matrix, the first quantity includes the number of elements included in the first zenith angle and azimuth angle set, and an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle.

4. The method according to any one of claims 1 to 3, characterized in that The first information includes first indication information, where the first indication information is used to indicate that a reporting frequency band of the third information is a subband; The third information includes: N first matrices and / or indication information of N first matrices, each of the first matrices corresponds to a subband, each indication information of the first matrix corresponds to a subband, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device, the indication information of the first matrix is ​​used to determine the first matrix, and N is a positive integer less than or equal to the number of subbands.

5. The method according to any one of claims 1 to 4, characterized in that The third information also includes first request information, where the first request information is used to request suppression of cross-link interference of the first network device on the second network device.

6. The method according to any one of claims 1 to 5, characterized in that The method further comprises: The first network device receives a first receiving power and / or a first path loss from the second network device, where the first receiving power is the receiving power of the second network device receiving the first signal, and the first path loss is the path loss from the first network device to the second network device; The first network device determines whether to suppress cross-link interference of the first network device to the second network device.

7. The method according to any one of claims 1 to 6, characterized in that The first information is further used to indicate that the third information includes at least one of the following: a first matrix, wherein the first matrix is ​​used to suppress cross-link interference of the first network device on the second network device; Indication information of a first matrix, where the indication information of the first matrix is ​​used to determine the first matrix; a first zenith angle and azimuth angle set, wherein the first zenith angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device; a first number of layers, where the first number of layers is the number of columns of the first matrix; a first number, wherein the first number is the number of elements included in the first zenith angle and azimuth angle set, wherein one element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle; The first request information is used to request to suppress the cross-link interference of the first network device to the second network device.

8. The method according to any one of claims 1 to 7, characterized in that The first information includes second indication information, where the second indication information is used to indicate a first layer number and / or a first quantity.

9. The method according to any one of claims 1 to 8, characterized in that The second information includes: the transmission power of the first signal in a frequency unit and / or the start time of the first signal.

10. The method according to any one of claims 1 to 9, characterized in that The method also includes: the first network device sending first configuration information to the second network device, the first configuration information is used to configure a first reporting setting, and the first reporting setting is used for the second network device to report the third information.

11. The method according to any one of claims 1 to 10, characterized in that The method further comprises: The first network device receives fourth information from the second network device, where the fourth information is used to instruct the first network device to modify the first measurement resource; The first network device sends fifth information to the second network device based on the fourth information, where the fifth information is used to indicate the modified first measurement resource.

12. The method according to claim 11, characterized in that The fourth information includes parameters recommended or not recommended by the second network device.

13. The method according to any one of claims 1 to 12, characterized in that The method further comprises: The first network device sends a second signal to the terminal device based on the third information.

14. A communication method, characterized in that: include: The second network device receives first information and second information from the first network device, wherein the first information is used to instruct the second network device to report third information, the third information is used to suppress cross-link interference of the first network device on the second network device, the second information is used to configure a first measurement resource, the first measurement resource is used for the second network device to receive a first signal, and the first signal is used to determine the third information; The second network device receives the first signal from the first network device; The second network device sends the third information to the first network device.

15. The method according to claim 14, characterized in that The third information includes at least one of the following: a first matrix, wherein the first matrix is ​​used to suppress cross-link interference of the first network device on the second network device; Indication information of a first matrix, where the indication information of the first matrix is ​​used to determine the first matrix; A first zenith angle and azimuth angle set is provided, wherein the first zenith angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device.

16. The method according to claim 15, characterized in that The third information also includes a first layer number and / or a first quantity, wherein the first layer number is the number of columns of the first matrix, the first quantity is the number of elements included in the first zenith angle and azimuth angle set, and an element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle.

17. The method according to any one of claims 14 to 16, characterized in that The first information includes first indication information, where the first indication information is used to indicate that a reporting frequency band of the third information is a subband; The third information includes: N first matrices and / or indication information of N first matrices, each of the first matrices corresponds to a subband, each indication information of the first matrix corresponds to a subband, the first matrix is ​​used to suppress cross-link interference of the first network device to the second network device, the indication information of the first matrix is ​​used to determine the first matrix, and N is a positive integer less than or equal to the number of subbands.

18. The method according to any one of claims 14 to 17, characterized in that The third information also includes first request information, where the first request information is used to request suppression of cross-link interference of the first network device on the second network device.

19. The method according to any one of claims 14 to 18, characterized in that The method further comprises: The second network device sends a first receiving power and / or a first path loss to the first network device, where the first receiving power is the receiving power of the second network device receiving the first signal, and the first path loss is the path loss from the first network device to the second network device.

20. The method according to any one of claims 14 to 19, characterized in that The first information is further used to indicate that the third information includes at least one of the following: a first matrix, wherein the first matrix is ​​used to suppress cross-link interference of the first network device on the second network device; Indication information of a first matrix, where the indication information of the first matrix is ​​used to determine the first matrix; a first zenith angle and azimuth angle set, wherein the first zenith angle and azimuth angle set is used to suppress cross-link interference between the first network device and the second network device; a first number of layers, where the first number of layers is the number of columns of the first matrix; a first number, wherein the first number is the number of elements included in the first zenith angle and azimuth angle set, wherein one element in the first zenith angle and azimuth angle set includes a zenith angle and an azimuth angle; The first request information is used to request to suppress the cross-link interference of the first network device to the second network device.

21. The method according to any one of claims 14 to 20, characterized in that The first information includes second indication information, where the second indication information is used to indicate a first layer number and / or a first quantity.

22. The method according to any one of claims 14 to 21, characterized in that The second information includes: the transmission power of the first signal in a frequency unit and / or the start time of the first signal.

23. The method according to any one of claims 14 to 22, characterized in that The method also includes: the second network device receives first configuration information sent by the first network device, the first configuration information is used to configure a first reporting setting, and the first reporting setting is used by the second network device to report the third information.

24. The method according to any one of claims 14 to 23, characterized in that The method further comprises: The second network device sends fourth information to the first network device, where the fourth information is used to instruct the first network device to modify the first measurement resource; The second network device receives fifth information sent by the first network device, where the fifth information is used to indicate the modified first measurement resource.

25. The method according to claim 24, characterized in that The fourth information includes parameters recommended or not recommended by the second network device.

26. A communication device, characterized in that: comprising a processor configured to, by executing a computer program or instructions, or, by means of a logic circuit, enabling the communication device to perform the method according to any one of claims 1 to 13; or, The communication device is enabled to execute the method according to any one of claims 14 to 25.

27. The communication device according to claim 26, characterized in that The communication device further comprises a memory for storing the computer program or instructions.

28. The communication device according to claim 26 or 27, characterized in that: The communication device further comprises a communication interface, and the communication interface is used for inputting and / or outputting signals.

29. A communication device, characterized in that: It includes a logic circuit and an input / output interface, wherein the input / output interface is used to input and / or output signals. The logic circuit is used to execute the method according to any one of claims 1 to 13; or, The logic circuit is configured to execute the method according to any one of claims 14 to 25.

30. A computer-readable storage medium, characterized in that: The computer readable storage medium stores a computer program or instruction. When the computer program or instruction is executed on a computer, so that the method of any one of claims 1 to 13 is performed; or, The method according to any one of claims 14 to 25 is performed.

31. A computer program product, characterized in that Contains instructions that, when executed on a computer, so that the method of any one of claims 1 to 13 is performed; or, The method according to any one of claims 14 to 25 is performed.

Images