Communication method and communication device

Abstract

The invention provides a communication method, and the method comprises the steps that a first network device sends first information and second information to a second network device. The first information is used for instructing the second network equipment to report third information, and the third information is used for suppressing cross-link interference of the first network equipment to the second network equipment. 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 third information. And the first network equipment sends the first signal to the second network equipment and receives third information from the second network equipment. According to the method, the second network equipment is instructed to send the third information which can be used for inhibiting the cross-link interference of the first network equipment on the second network equipment, so that the first network equipment can obtain the necessary information for executing the inhibition action, and the inhibition action can be executed by the first network equipment when the first network equipment sends a signal by using the SBFD subsequently. And cross-link interference on the second network equipment is avoided.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a communication method and a communication device. Background Art

[0002] In order to meet the needs of emerging services, a subband full duplex (SBFD) solution is proposed to improve the uplink coverage of the time division duplex (TDD) system, where subband full duplex can include subband non-overlapping duplex and subband overlapping full duplex. Subband full duplex means that in the TDD system, network devices use different subbands for uplink and downlink transmission to achieve both reception and transmission in one time slot or one orthogonal frequency division multiplexing (OFDM) symbol.

[0003] 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. Summary of the invention

[0004] The present application provides a communication method and a communication device, which can avoid the lack of necessary information for executing the action of suppressing cross-link interference in the information reported when performing inter-station measurement, thereby realizing the suppression of cross-link interference.

[0005] In the first aspect, a communication method is provided. The method 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). There is no limitation on this. For the sake of ease of description, the following is explained by taking execution by a network device as an example.

[0006] The method may include: a first network device sends 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 of 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 for 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.

[0007] In this solution, the first signal may include a reference signal for channel measurement. Exemplarily, the first signal may include a CSI-RS.

[0008] The third information is used to suppress the cross-link interference of the first network device to the second network device, which means that the first network device can use the third information to perform an action of suppressing the cross-link interference of the first network device to the second network device. Exemplarily, the action can be CBF.

[0009] 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.

[0010] 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.

[0011] Optionally, the third information may also include a first layer number and / or a first quantity, the first layer number including the number of columns of the first matrix, the first quantity including 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.

[0012] In a 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.

[0013] In a possible implementation manner, the first indication information includes the length and number of subbands.

[0014] 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.

[0015] In the above solution, the first network device can obtain parameters for suppressing the cross-link interference of the first network device to the second network device, thereby suppressing the cross-link interference of the first network device to the second network device.

[0016] In combination with the first aspect, in some implementations of the first aspect, the third 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 on the second network device.

[0017] The first request information can enable the first network device to suppress cross-link interference of the second network device, thereby improving communication reliability.

[0018] In combination with the first aspect, in some implementations of the first aspect, the method further includes the first network device receiving a first received power and / or a first path loss from the second network device, the first received power being the received power of the second network device receiving the first signal, and the first path loss being 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.

[0019] Exemplarily, if the first received power is greater than the first threshold or the first path loss is less than the second threshold, the first network device determines not to suppress cross-link interference of the first network device to the second network device.

[0020] In this solution, whether to suppress the cross-link interference of the first network device to the second network device is determined based on the received power and / or path loss, and the suppression operation can be selectively performed to reduce unnecessary suppression operations and improve the flexibility of communication. Since performing CLI suppression will affect the downlink performance of the first network device, not performing unnecessary CLI suppression can improve the downlink performance.

[0021] 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.

[0022] The above scheme 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.

[0023] 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 number of layers and / or the first quantity.

[0024] In combination with the first aspect, in some implementations of the first aspect, the second information includes: a transmission power of the first signal on a frequency unit and / or a start time of the first signal.

[0025] The start time of the first signal refers to the absolute time when the first signal is sent for the first time. Exemplarily, the time may be UTC time.

[0026] 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.

[0027] In combination with the first aspect, in some implementations of the first aspect, the method also 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.

[0028] 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.

[0029] In the above scheme, by modifying the measurement resources, the efficiency of inter-station measurement can be improved, and repeated measurements can be avoided, thereby reducing measurement overhead; at the same time, it can avoid missing necessary measurements and improve the reliability of measurements.

[0030] 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.

[0031] In combination with the first aspect, in some implementations of the first aspect, the method further includes: the first network device sends a second signal to the terminal device based on the third information.

[0032] On the second aspect, a communication method is provided. The method 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). There is no limitation on this. For the sake of ease of description, the following is explained by taking execution by a network device as an example.

[0033] The method may include: a second network device receives first information and second information from a first 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 of 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 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.

[0034] 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.

[0035] Optionally, the third information may also include a first layer number and / or a first quantity, the first layer number including the number of columns of the first matrix, the first quantity including 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.

[0036] In a 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.

[0037] In combination with the second aspect, in some implementations of the second aspect, the third 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 on the second network device.

[0038] In combination with the second aspect, in some implementations of the second aspect, the method further includes the second network device sending 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. The first network device determines whether to suppress cross-link interference of the first network device to the second network device.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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, 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, the fifth information is used to indicate the modified first measurement resource.

[0044] 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.

[0045] On the third aspect, a communication method is provided. The method 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). There is no limitation on this. For the sake of ease of description, the following is explained by taking execution by a network device as an example.

[0046] The method includes: a first network device receives first information from a third 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 first network device sends the first signal to the second network device. The first network device receives fourth information from the second network device, the fourth information is used to suppress cross-link interference of the first network device to the second network device, and the fourth information is determined based on the first signal.

[0047] 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.

[0048] Optionally, the fourth information may also include a first layer number and / or a first quantity, the first layer number including the number of columns of the first matrix, the first quantity including 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.

[0049] 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 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.

[0050] In combination with the third aspect, in some implementations of the third aspect, the fourth information also includes first request information, and the first request information is used to request suppression of cross-link interference of the first network device on the second network device.

[0051] In combination with the third aspect, in some implementations of the third aspect, the method further includes the first network device receiving a first received power and / or a first path loss from the second network device, the first received power being the received power of the second network device receiving the first signal, and the first path loss being 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.

[0052] In combination with the third aspect, in some implementations of the third aspect, the method also includes the first network device sending a second signal to the terminal device based on the fourth information.

[0053] 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, and the fifth information being used to instruct the third network device to modify the first measurement resource.

[0054] In a fourth aspect, a communication method is provided. The method 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). 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.

[0055] The method may include: the second network device receives the second information and the third information from the third network device. The second information is used to instruct the second network device to report the fourth information to the first network device, and the fourth information is used to suppress the cross-link interference of the first network device to the second network device. The third information is used to configure the first measurement resource, the first measurement resource is used for the second network device to receive the 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 fourth information to the first network device.

[0056] 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.

[0057] Optionally, the fourth information may also include a first layer number and / or a first quantity, the first layer number including the number of columns of the first matrix, the first quantity including 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.

[0058] In a 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.

[0059] In combination with the fourth aspect, in some implementations of the fourth aspect, the fourth information also 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.

[0060] In combination with the fourth aspect, in some implementations of the fourth aspect, the method further includes the second network device sending 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. The first network device determines whether to suppress cross-link interference of the first network device to the second network device.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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, 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, the seventh information is used to indicate the modified first measurement resource.

[0066] 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.

[0067] In a fifth aspect, a communication method is provided. The method 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). There is no limitation on this. For the sake of ease of description, the following is explained using the execution by a network device as an example.

[0068] The method may include: the third network device sends first information to the 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 indicate that the second network device reports fourth information to the first network device, the fourth information is used to suppress the 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.

[0069] 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.

[0070] Optionally, the fourth information may also include a first layer number and / or a first quantity, the first layer number including the number of columns of the first matrix, the first quantity including 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.

[0071] In a 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.

[0072] In combination with the fifth aspect, in certain implementations of the fifth aspect, the fourth information also 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.

[0073] 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.

[0074] In combination with the fifth aspect, in certain 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] In combination with the fifth aspect, in certain implementations of the fifth aspect, the fifth information includes parameters recommended or not recommended by the second network device.

[0079] 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.

[0080] 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 possible aspect from the third aspect to the fifth aspect and from the third aspect to the fifth aspect, the second network device performs the actions of the second network device in any possible aspect from the third aspect to the fifth aspect and from the third aspect to the fifth aspect, and the third network device performs the actions of the third network device in any possible aspect from the third aspect to the fifth aspect and from the third aspect to the fifth aspect.

[0081] In an eighth aspect, a communication device is provided, which is used to execute the method provided in the first to fifth aspects above. Specifically, the device may include a unit and / or module, such as a processing unit and / or a communication unit, for executing the method in the first to fifth aspects and any possible implementation of the first to fifth aspects.

[0082] In one implementation, the device is a network device. When the device is a network device, the communication unit may be a transceiver, or an input / output interface; the processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0083] In another implementation, the device is a chip, a chip system or a circuit used in a network device. When the device is a chip, a chip system or a circuit used in a network device, the communication unit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip, the chip system or the circuit; the processing unit may be at least one processor, a processing circuit or a logic circuit.

[0084] 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 the first to fifth aspects and any possible implementation of the first to fifth aspects.

[0085] In one implementation, the apparatus is a network device.

[0086] In another implementation, the apparatus is a chip, a chip system, or a circuit used in a network device.

[0087] In a tenth aspect, a processor is provided for executing the methods provided in the above aspects.

[0088] For the operations such as sending and acquiring / receiving involved in the processor, unless otherwise specified, or unless they conflict with their actual function or internal logic in the relevant description, they can be understood as operations such as processor output, reception, input, etc., or as sending and receiving operations performed by the radio frequency circuit and antenna, and this application does not limit this.

[0089] 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 first to fifth aspects above and any possible implementation of the first to fifth aspects.

[0090] In the twelfth aspect, a computer program product comprising instructions is provided. When the computer program product is run on a computer, the computer executes the method in any one of the first to fifth aspects and any possible implementation of the first to fifth aspects.

[0091] 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 to execute the method in any aspect of the first to fifth aspects and any possible implementation of the first to fifth aspects.

[0092] Optionally, as an implementation method, the chip also includes a memory, in which a computer program or instructions are stored, and the processor is used to execute the computer program or instructions stored in the memory. When the computer program or instructions are 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.

[0093] 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

[0094] Figure 1 It is a schematic diagram of a communication system provided in an embodiment of the present application.

[0095] Figure 2 It is a time-frequency diagram of sub-band full-duplex.

[0096] Figure 3 It is a schematic flow chart of a communication method provided in an embodiment of the present application.

[0097] Figure 4 It is a schematic flow chart of another communication method provided in an embodiment of the present application.

[0098] Figure 5It is a schematic block diagram of a communication device 500 provided in an embodiment of the present application.

[0099] Figure 6 A schematic block diagram of a communication device 600 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0100] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0101] 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.

[0102] Figure 1 1 is a schematic diagram of a communication system provided in an embodiment of the present application. The communication system 100 includes multiple network devices, such as Figure 1 The first network device 110 and the second network device 120 are shown. Each network device can communicate with at least one terminal device via a wireless link to exchange information, such as Figure 1 The first network device 110 shown communicates with the terminal device 130 via a wireless link, and the second network device 120 communicates with the terminal devices 140 and 150 via a wireless link. Network devices may also communicate with each other via wired or wireless links to exchange information, for example Figure 1 The first network device 110 and the second network device 120 shown can communicate via a wireless link or can communicate via a wired link via an Xn or F1 port. It is understandable that network devices and terminal devices can also be referred to as communication devices.

[0103] 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 is 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 a communication system using different radio access technologies (RAT), the names of devices with base station functions may be different. For example, an eNB or eNodeB may be referred to in an LTE system, and a gNB may be referred to in a 5G system or an NR system. This application does not limit the specific name of the base station. A network device may include one or more co-sited or non-co-sited transmission and reception points. For another example, a network device may include one or more centralized units (CU), one or more distributed units (DU), or one or more CUs and one or more DUs. Exemplarily, the functions of CU can be implemented by one entity or different entities. For example, the functions of 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, CU is responsible for processing non-real-time protocols and services, and realizing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. DU is responsible for processing physical layer protocols and real-time services, and realizing 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 for short).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, therefore, 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 a CU node, a DU node, and an AAU node. In addition, the CU can be divided into a network device in the access network (radio access network, RAN), and the CU can also 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 base stations of 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 embodiment of the present application, the device for realizing the function of the network device can be the network device itself, or a device that can support the network device to realize the function, such as a chip system or a combination device or component that can realize the function of the access network device, and the device can be installed in the network device. In the embodiment of the present application, the chip system can be composed of chips, or it can include chips and other discrete devices.

[0104] Terminal equipment is a user-side device with wireless transceiver functions, which can be a fixed device, mobile device, handheld device (such as a mobile phone), wearable device, vehicle-mounted device, or a wireless device built into the above devices (such as a communication module, modem, or chip system, etc.). Terminal equipment is used to connect people, objects, machines, etc., and can be widely used in various scenarios, such as: cellular communication, device-to-device (D2D) communication, V2X communication, machine-to-machine / machine-type communication (M2M / MTC) communication, Internet of Things, virtual reality (VR), augmented reality (AR), industrial control, self driving, remote medical, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, 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 city, 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.

[0105] To facilitate understanding of the embodiments of the present application, the concepts and related processes involved in the present application are first introduced.

[0106] 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 may 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.

[0107] 2. SBFD time unit: The frequency resources on the SBFD time unit include uplink frequency resources and downlink frequency resources, where the uplink frequency resources are used for uplink transmission and the downlink frequency resources are used for downlink transmission. For example, the time-frequency division of a typical SBFD solution is as follows: Figure 2 As shown, the horizontal axis represents the time domain and the vertical axis represents the frequency domain. Figure 2 The two rectangles filled with left slashes represent a group of time-frequency resources for downlink transmission, and the rectangle filled with vertical bars represents a group of time-frequency resources for uplink transmission. The time domain resources in the time domain range occupied by these three time-frequency resources are called SBFD time units.

[0108] 3. CBF: It can also be called beam nulling technology. It points the null point of the downlink beam of the network device to other network devices, suppressing the CLI caused by the downlink signal of the network device to other network devices.

[0109] In order to implement the CBF technology, the network device needs to obtain the channel information (or other related information) between other network devices, which requires the network devices to cooperate with each other, for example: the network devices perform channel measurements and report the measurement results.

[0110] However, currently, network devices cannot well support the measurement and reporting between network devices. For example, network devices lack the necessary interactive information to ensure that there is no duplication of measurements or omission of necessary measurements between network devices. Another example is that network devices lack the necessary reporting information to support CBF technology (as an input parameter of CBF technology). This will result in the inability to efficiently execute CBF technology between network devices, or even the inability to execute CBF technology at all.

[0111] In view of this, the present application proposes an uplink transmission method, which can effectively solve the above technical problems. The method proposed in the present application is described in detail below.

[0112] like Figure 3 As shown, Figure 3 It is a schematic flow chart of a communication method provided in an embodiment of the present application.

[0113] S310: The first network device sends first information and second information to the second network device.

[0114] 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 a first signal sent by the first network device.

[0115] In a possible implementation manner, the first information may be used to indicate the measurement amount 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:

[0116] 1. Channel matrix: a channel matrix between a first network device and a second network device. It should be understood that the channel matrix is ​​a two-dimensional matrix, where the rows are antenna ports of the second network device and the columns are antenna ports of the first network device.

[0117] 2. First matrix: The first matrix is ​​used to suppress cross-link interference of the first network device on the second network device. Exemplarily, the first matrix may be a CBF matrix.

[0118] Optionally, the first matrix is ​​composed of one or more columns of a right singular matrix obtained by decomposing the channel matrix through SVD.

[0119] 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.

[0120] The rows of the first matrix are antenna ports of the first network device.

[0121] 3. Indication information of the first matrix: The indication information of the first matrix is ​​used to determine the first matrix. Exemplarily, the indication information of the first matrix may include an index of the first matrix, and the corresponding first matrix may be determined according to the index; the indication information of the first matrix is ​​obtained by quantizing the first matrix, and a possible quantization method is to use a downlink codebook to determine the indication information of the first matrix.

[0122] 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.

[0123] 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.

[0124] Optionally, the first zenith angle and azimuth angle set is composed 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.

[0125] 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.

[0126] Optionally, the zenith angle and the azimuth angle are determined according to a channel matrix.

[0127] 5. First layer number: The first layer number refers to the number of columns of the first matrix. If the first layer number is 1, the first matrix is ​​a one-dimensional matrix, and if the first layer number is greater than 1, the first matrix is ​​a two-dimensional matrix.

[0128] Exemplarily, candidate values ​​for the first number of layers are 1, 2 or 4.

[0129] 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 the downlink performance loss caused by the first network device suppressing the CLI.

[0130] 6. First quantity: The first quantity refers to the number of elements included in the first set of zenith angles and azimuth angles, and one element in the first set of zenith angles and azimuth angles includes a zenith angle and an azimuth angle.

[0131] Exemplarily, the first number of candidate values ​​is 1, 2 or 4.

[0132] 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.

[0133] 7. First request information: The first request information is used to request whether to suppress the cross-link interference of the first network device to the second network device. Exemplarily, the first request information includes suppress CLI request signaling: the second network device requests the first network device to execute or not execute suppress CLI on it.

[0134] 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.

[0135] 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. Exemplarily, 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.

[0136] The first received power and / or the first path loss may be used to determine whether to suppress cross-link interference of the first network device on the second network device.

[0137] 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.

[0138] 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.

[0139] It should be noted that the first number of layers and the first quantity may 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 number of layers and / or the first quantity.

[0140] 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.

[0141] 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.

[0142] In an embodiment of the present application, the first information may include first indication information, where the first indication information is used to indicate the frequency domain configuration for reporting the third information, including a reporting frequency band for the third information, wherein the reporting frequency band for the third information may be a broadband or a subband.

[0143] 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.

[0144] Exemplarily, the first indication information may include a bitmap, which may indicate a subband that needs to be reported. The right side of the bitmap is a low bit, and the left side is a 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 its 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.

[0145] Furthermore, the first indication information may also indicate the length of the subband and the number of the subbands. For example, the first indication information may also indicate that the number of subbands is 5 and the length of each subband is 10 resource blocks (RBs).

[0146] In a possible implementation, the first network device may also send first configuration information to the second network device, the first configuration information being used to configure a first reporting setting (s), the first reporting setting being used for the second network device to report third information. In particular, the first configuration information may be included in the first information.

[0147] Exemplarily, the first reporting setting includes one or more of the following parameters:

[0148] 1. Network device ID: The ID of the network device that configures the first reporting setting. For example, the network device ID in this embodiment is the ID of the first network device. It should be understood that this embodiment only takes two network devices as an example. In practice, in addition to the first network device, other network devices will also configure reporting settings for the second network device. In order to distinguish the reporting settings configured by different network devices and to identify which network device to feedback the third information to, it is necessary to carry the network device ID in the reporting setting; 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.

[0149] 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.

[0150] 3. Measurement resource ID: indicates the measurement resource corresponding to which the second network device measures the first signal to obtain 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.

[0151] 4. Time domain behavior of reporting third party information:

[0152] 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.

[0153] Among them, 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.

[0154] 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. After activation, the second network device periodically reports the third information according to the reporting period; after deactivation, the second network device will not report the third information.

[0155] The first signaling includes activation / deactivation information. Exemplarily, the activation / deactivation information occupies 1 bit of resources, wherein "0" represents deactivation and "1" represents activation; or "0" represents activation and "1" represents deactivation.

[0156] The first signaling further includes a reporting setting ID, where the reporting setting ID indicates an activated or deactivated first reporting setting.

[0157] If the third information is reported non-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.

[0158] In a possible implementation manner, the first reporting setting may also include information indicating that the third information includes parameters.

[0159] In a possible implementation, the first network device may indicate multiple first reporting settings. Exemplarily, the first network device indicates a first reporting setting set, the first reporting setting set includes at least one first reporting setting; Exemplarily, the first network device indicates multiple first reporting setting sets.

[0160] In an embodiment of the present application, the second information indicates a first measurement resource, where the first measurement resource is a resource for a 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.

[0161] In a possible implementation manner, the first network device sends the first signal according to the first measurement resource.

[0162] Optionally, the first measurement resource includes one or more of the following parameters:

[0163] 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 only takes two network devices as an example. In practice, in addition to the first network device, other network devices will also configure measurement resources for the second network device. In order to distinguish the measurement resources configured by different network devices, the network device ID needs to be carried in the measurement resources.

[0164] 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.

[0165] 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.

[0166] 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.

[0167] The start time of the first signal refers to the absolute time when the first signal is sent for the first time. Exemplarily, the start time of the first signal is UTC time, in units of seconds, milliseconds, microseconds, nanoseconds, etc.

[0168] 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.

[0169] The second network device may periodically receive the first signal. Exemplarily, the second network device periodically receives and measures the first signal. Optionally, the first network device periodically sends the first signal. When the first resource configuration takes effect immediately, it should be understood that "immediately takes effect" means that the second network device immediately receives and measures the first signal according to the first measurement resource.

[0170] The second network device may also semi-continuously receive the first signal. Exemplarily, the second information includes a third signaling, and the third signaling activates or deactivates the first measurement resource. After activation, the second network device periodically receives and measures the first signal, and optionally, the first network device periodically sends the first signal; after deactivation, the second network device will not receive and measure the first signal, and optionally, the first network device will not send the first signal.

[0171] The third signaling may include activation / deactivation information, and the activation / deactivation information occupies 1 bit of resources. Exemplarily, "0" indicates deactivation and "1" indicates activation; or "0" indicates activation and "1" indicates deactivation.

[0172] The third signaling may further include a measurement resource ID, where the measurement resource ID indicates the activated or deactivated first measurement resource.

[0173] The second network device may also non-periodically receive the first signal. Exemplarily, the first information includes a fourth signaling, and the fourth signaling triggers the first measurement resource. After being triggered, the second network device receives and measures the first signal once. Optionally, the first network device sends the first signal once.

[0174] 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.

[0175] 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.

[0176] 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 (BandwidthPart, BWP) as a reference.

[0177] 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, and this mode is called the frequency density of the first signal is 1; a first signal can also be configured every RB, and this mode is called the frequency density of the first signal is 0.5.

[0178] 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.

[0179] The spatial domain resources include the number of ports of the first signal and the code division multiplexing (CDM) type of the first signal. Exemplarily, the number of ports of the first signal can be indicated by the field nrofPorts in the RRC element CSI-RS-ResourceMapping, and the CDM type of the first signal can be indicated by the field cdm-Type in the RRC element CSI-RS-ResourceMapping.

[0180] The power domain resources include the transmission power of the first signal on a frequency unit, and the transmission 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. Exemplarily, the transmission power of the first signal on an RE is in dBm.

[0181] In a possible implementation, the second information may indicate multiple first measurement resources. Exemplarily, the second information may indicate a first measurement resource set, the first measurement resource set includes at least one first measurement resource, and the first information may also indicate multiple first measurement resource sets.

[0182] In a possible implementation manner, there is a certain relationship between the first measurement resource and the first reporting setting.

[0183] The first possible relationship: 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, then the second network device measures the first signal corresponding to the first measurement resource configured, activated, or triggered according to the second information, and then determines the first measurement result according to the first information and reports it to the first network device. In this scheme, the reported time domain behavior mode is consistent with the measured time domain behavior mode, which is described in detail as follows.

[0184] 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.

[0185] 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.

[0186] In the case where 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.

[0187] It should be understood that the measurement and reporting process will take effect only 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.

[0188] When the time domain behavior mode reported by the second network device and the time domain behavior mode measured are both non-periodic, a first reporting setting is configured, and after the first measurement resource is triggered, a measurement and reporting process takes effect once.

[0189] The second possible relationship: the first reporting setting includes the measurement resource ID, the time domain behavior mode of reporting and the reporting period (Note: non-periodic reporting does not require a reporting period).

[0190] 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.

[0191] 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.

[0192] 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.

[0193] 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.

[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 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.

[0195] It should be understood that under 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.

[0196] In the case where 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 may 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.

[0197] 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.

[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 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.

[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 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.

[0200] It should be understood that under 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.

[0201] It should be understood that, more accurately, the above-mentioned "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".

[0202] 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 corresponds to the measurement result that 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.

[0203] 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 result corresponding to the measurement resource to be reported, without the need for a second information indication, and the behavior of triggering and activating / deactivating the measurement resource is completed by the first reporting setting; the first reporting setting and the time domain behavior of the first measurement resource are configured separately; different measurement resources can correspond to different reporting amounts and frequency domain configurations of the reporting amounts.

[0204] S320: The first network device sends a first signal to the second network device.

[0205] The first signal is used for channel measurement, and exemplarily, the first signal may include a CSI-RS signal.

[0206] S330: The second network device determines a first measurement result based on measuring the first signal.

[0207] S340: The second network device sends third information to the first network device, where the third information includes the first measurement result.

[0208] 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: a channel matrix, a first matrix, indication information of the first matrix, a first apex angle and an 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 channel matrix, the first matrix, the indication information of the first matrix, the first apex angle and an azimuth angle set, the first number of layers, the first quantity and the first receiving power and / or the first path loss are parameters of the entire broadband, and the first request information also corresponds to the entire broadband.

[0209] If the frequency domain configuration of reporting the third information in the first information is a subband, the content of the third information includes the measurement amount corresponding to each (enabled) subband. The third information may include N first matrices and / or indication information of N first matrices, each first matrix corresponds to a subband, and the indication information of each first matrix corresponds to a subband.

[0210] 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 item of the indication information of the first matrix.

[0211] In a possible implementation, the third information may also 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 receiving powers, and N first path losses, wherein each first apex angle and azimuth angle set, each first layer number, each first quantity, each first request information, each first receiving power, and each first path loss corresponds to a subband. Exemplarily, each of the above N parameter sets also includes at least one of the first apex angle and azimuth angle set, the first layer number, the first quantity, the first request information, the first receiving power, and the first path loss.

[0212] 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.

[0213] 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.

[0214] 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.

[0215] 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.

[0216] It should be understood that the third information may include a reporting amount that has been indicated in the first information, and its specific content can refer to the description of the first information in S310.

[0217] S350: The first network device sends a second signal to the terminal device according to the third information.

[0218] Optionally, the first network device determines the precoding used to send the second signal according to the third information.

[0219] Exemplarily, the first network device determines, according to the third information, the precoding used to send the second signal, including but not limited to the following two possible methods:

[0220] Method 1: Determine the precoding used for sending the second signal according to the zenith angle and the azimuth angle.

[0221] Step 1: The first network device calculates the channel matrix H between itself and the terminal device. i Determine the initial precoding V i .

[0222] V i Yes H i Right singular vector after SVD decomposition, i = 0, 1, ..., N UE -1;

[0223] 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;

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

[0225] N UE The number of terminal devices served by the first network device.

[0226] Step 2: According to the zenith angle θ and azimuth Determine the first matrix V CBF :

[0227]

[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 a polarization direction in the vertical direction;

[0229]

[0230] 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;

[0231]

[0232] 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.

[0233] 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:

[0234] W=V[(V H V) -1 ] H

[0235]

[0236]

[0237] 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.

[0238] 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.

[0239] 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.

[0240] In the embodiment of the present application, the first matrix is ​​a two-dimensional matrix, which can reduce resource overhead.

[0241] 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, 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.

[0242] 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 the existing technology.

[0243] If the third information does not include request information but includes CSI-RS RSRP or path loss, the first network device can determine whether the first network device performs suppression CLI on the second network device based on the CSI-RS RSRP or path loss. Exemplarily, if the CSI-RS RSRP is greater than the first threshold, or the path loss is less than the second threshold, the first network device performs suppression 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 perform suppression CLI on the second network device.

[0244] 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. 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.

[0245] If the third information includes multiple request information, and 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, 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.

[0246] If the third information does not include request information but includes multiple CSI-RS RSRPs or multiple path losses, the first network device can determine whether the first network device performs suppression CLI on the second network device based on the CSI-RS RSRP or the path loss. Exemplarily, the first network device performs suppression CLI on the second network device on a subband where the CSI-RS RSRP is greater than the first threshold or the path loss is less than the second threshold; the first network device does not perform suppression CLI on the second network device on a subband where 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.

[0247] 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 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.

[0248] 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.

[0249] In a possible implementation, between steps S310 and S320, the embodiment of the present application may further include S360 and S370.

[0250] 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.

[0251] The fourth information includes: measurement resource modification request signaling, used to notify the first network device to modify the first measurement resource.

[0252] Optionally, the fourth information also includes: recommended or unrecommended measurement parameters, for example:

[0253] Measurement resource ID;

[0254] Time domain resources, including: period, offset, symbol position, etc.;

[0255] Frequency domain resources, including bandwidth, density, RE location, etc.

[0256] Airspace resources, including: number of ports, CDM type, etc.;

[0257] Power domain resources: transmit power, etc.

[0258] 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 not suitable, for example, when it conflicts with the measurement resource configured for it by other network devices, it can send fourth information to request the first network device to modify the first measurement resource (according to the recommended or not recommended measurement parameters). It should be understood that after receiving the fourth information, the first network device can redetermine the first measurement resource.

[0259] S370: The first network device sends the fifth information and / or the sixth information to the second network device.

[0260] The fifth information is used to re-indicate the first measurement resource, including:

[0261] Method 1: The fifth information reconfigures the first measurement resource; it should be understood that this method is applicable to periodic measurement resources.

[0262] 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.

[0263] Method 3: the fifth information includes the 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.

[0264] The sixth information is used to re-indicate the first reporting setting, including:

[0265] Method 1: The sixth information reconfigures the first reporting setting; it should be understood that this method is applicable to periodic reporting resources.

[0266] 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.

[0267] 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.

[0268] By sending the fourth information to modify the first measurement resource, the inappropriate resource can be modified to improve the reliability of communication.

[0269] 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 actions to suppress cross-link interference, thereby improving communication quality and communication reliability. The first network device indicates the measurement parameters that the second network device needs to report 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.

[0270] 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.

[0271] like Figure 4 As shown, Figure 4 It is a schematic flow chart of another communication method provided in an embodiment of the present application.

[0272] 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.

[0273] Optionally, the third network device is OAM, and the first network device and the second network device are gNB.

[0274] Optionally, the third network device is a gNB-CU, and the first network device and the second network device are gNB-DU.

[0275] It should be understood that the third network device is a central node.

[0276] 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.

[0277] Optionally, the first information indicates a plurality of 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 a plurality of first transmission resource sets.

[0278] S420: The third network device sends the second information and the third information to the second network device.

[0279] 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 the cross-link interference of the first network device on the second network device, and the first signal is used to determine the fourth information, wherein the second information refers to the description of the first information in S310 and is not repeated here.

[0280] 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, refer to the description of the second information in S310, which will not be repeated here.

[0281] It should be understood that the difference between the first transmission resource and the first measurement resource is that the first transmission resource is used to indicate the necessary resources for transmitting the first signal, while the first measurement resource is used to indicate the necessary resources for receiving and measuring the first signal, that is, one is used for transmitting and the other is used for receiving and measuring. In addition, the first measurement resource includes the network device ID, but the first transmission resource does not need it.

[0282] Optionally, the first signal is a reference signal used for measurement between network devices; exemplarily, the first signal is a CSI-RS.

[0283] S430: The first network device sends a first signal to the second network device.

[0284] S440: The second network device determines a first measurement result based on measuring the first signal.

[0285] S450: The second network device sends fourth information to the first network device, where the fourth information includes the first measurement result.

[0286] For the specific description of the fourth information, please refer to the description of the third information in S310, which will not be repeated here.

[0287] S460: The first network device sends a second signal to the terminal device according to the fourth information.

[0288] The first network device determines the precoding used to send the second signal according to the fourth information. For the specific method, please refer to the description in S350 and will not be described in detail here.

[0289] In a possible implementation, between steps S420 and S430, the embodiment of the present application may further include S470 and S480.

[0290] 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.

[0291] 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.

[0292] 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.

[0293] 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.

[0294] Optionally, the fifth information also includes: recommended or unrecommended measurement parameters, such as:

[0295] Measurement resource ID;

[0296] Time domain resources, including: period, offset, symbol position, etc.;

[0297] Frequency domain resources, including bandwidth, density, RE location, etc.

[0298] Airspace resources, including: number of ports, CDM type, etc.;

[0299] Power domain resources: transmit power, etc.

[0300] 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, conflicts with the measurement resources configured for it by other network devices, it can send the fifth information to request the third network device to make modifications (according to recommended or not recommended measurement parameters).

[0301] 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.

[0302] The sixth information is used to indicate the modified first sending resource.

[0303] The seventh information is used to indicate the modified first measurement resource, refer to the description of the fifth information in S370.

[0304] The eighth information is used to indicate the modified first reporting setting, see the description of the sixth information in S370.

[0305] It should be understood that the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0306] 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.

[0307] It should also be understood that in some of the above embodiments, the devices in the existing network architecture are mainly used as examples for exemplary description, 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 function in the future are applicable to the embodiments of the present application.

[0308] 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).

[0309] Above, combined Figures 1 to 4 The method provided by the embodiment of the present application is described in detail. The above method is mainly introduced from the perspective of interaction between communication devices. It can be understood that the communication device, in order to realize the above functions, includes a hardware structure and / or software module corresponding to each function.

[0310] 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.

[0311] The following, combined Figure 5 and Figure 6The communication device provided by the embodiment of the present application is described in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, the content not described in detail can refer to the method embodiment above. For the sake of brevity, some contents are not repeated. The embodiment of the present application can divide the functional modules of the terminal device or network device 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, which is only a logical function division, and there may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0312] The above describes in detail the data transmission method provided by the present application. The following describes the communication device provided by the present 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.

[0313] Figure 5 is a schematic block diagram of a communication device 500 provided in an embodiment of the present application. Figure 5 As shown, the device 500 may include a communication unit 510 and a processing unit 520. The communication unit 510 may communicate with the outside, and the processing unit 520 is used for data processing. The communication unit 510 may also be called a communication interface or a transceiver unit.

[0314] In one possible design, the device 500 can implement steps or processes corresponding to those executed by the terminal device in the above method embodiment, wherein the processing unit 520 is used to execute processing-related operations of the terminal device in the above method embodiment, and the communication unit 510 is used to execute sending-related operations of the terminal device in the above method embodiment.

[0315] In another possible design, the device 500 may implement steps or processes corresponding to those executed by the network device in the above method embodiments, wherein the communication unit 510 is used to execute reception-related operations of the network device in the above method embodiments, and the processing unit 520 is used to execute processing-related operations of the network device in the above method embodiments.

[0316] 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 proprietary processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a merged logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the device 500 can be specifically the terminal device in the above-mentioned embodiment, and can be used to execute the various processes and / or steps corresponding to the terminal device in the above-mentioned method embodiment, or the device 500 can be specifically the network device in the above-mentioned embodiment, and can be used to execute the various processes and / or steps corresponding to the network device in the above-mentioned method embodiment. To avoid repetition, it will not be repeated here.

[0317] The apparatus 500 of each of the above-mentioned schemes has the function of implementing the corresponding steps executed by the terminal device in the above-mentioned method, or the apparatus 500 of each of the above-mentioned schemes has the function of implementing the corresponding steps executed 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, respectively performing the sending and receiving operations and related processing operations in each method embodiment.

[0318] In addition, the communication unit may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit. Figure 5 The device in the embodiment may be the AP or STA in the foregoing embodiment, or may be a chip or a chip system, such as a system on chip (SoC). The communication unit may be an input / output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip. This is not limited here.

[0319] Figure 6 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 through an internal connection path, and the processor 610 is used to execute instructions to control the transceiver 620 to send signals and / or receive signals.

[0320] Optionally, the device 600 may further include a memory 630, which communicates with the processor 610 and the transceiver 620 through 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 device 600 is used to implement the various processes and steps corresponding to the terminal device in the above method embodiment. In another possible implementation, the device 600 is used to implement the various processes and steps corresponding to the network device in the above method embodiment.

[0321] It should be understood that the device 600 can be specifically a terminal device or a network device in the above-mentioned embodiment, or a chip or a chip system. Correspondingly, the transceiver 620 can be a 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 part 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 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.

[0322] In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in a processor for execution. 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 a 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 is not described in detail here.

[0323] It should be noted that the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. 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 devices, discrete gates or transistor logic devices, discrete hardware components. The processor in the embodiment of the present application can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined and performed. The software module can be located in a mature storage medium in the field 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 a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0324] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can 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 can 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 (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.

[0325] 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.

[0326] In addition, the present application also provides a computer-readable storage medium, in which computer instructions are stored. When the computer instructions are executed on a computer, the operations and / or processes performed by a terminal device or a network device in each method embodiment of the present application are executed.

[0327] 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 a terminal device or a network device in each method embodiment of the present application are executed.

[0328] In addition, the present application also provides a chip, the chip including a processor. A memory for storing a computer program is provided independently of the chip, and the processor is used to execute the computer program stored in the memory, so that the operation and / or processing performed by the terminal device or the network device in any method embodiment is executed.

[0329] 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.

[0330] In addition, the present application also provides a communication system, including the network device in the embodiments of the present application.

[0331] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0332] It can be appreciated by a person skilled in the art that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or in combination with computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application. It can be clearly understood by a person skilled in the art that for the convenience and simplicity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the unit is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0333] 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, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

[0334] It should be understood that the "embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments in the entire specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0335] It should also be understood that the ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority or importance of multiple objects. For example, the first information and the second information do not represent the difference in information volume, content, priority or importance.

[0336] It should also be understood that in the present application, "when", "if" and "if" all mean that the network element will take corresponding actions under certain objective circumstances, and do not limit the time, nor do they require the network element to have a judgment action when implementing it, nor do they mean that there are other limitations.

[0337] It should also be understood that in this application, "at least one" means one or more, and "more than one" means two or more. "At least one item" or similar expressions means one or more items, that is, any combination of these items, including any combination of single items or plural items. For example, at least one item of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c.

[0338] It should also be understood that the meaning of expressions similar to "the project includes one or more of the following: A, B, and C" in this application, unless otherwise specified, generally means that the project can be any 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 is an example of three elements, A, B and C, to illustrate the optional items of the project. When it is expressed as "the project includes at least one of the following: A, B, ..., and X", that is, when there are more elements in the expression, then the items that can be applied to the project can also be obtained according to the above rules.

[0339] It should also be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, including A and B, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0340] 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 according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0341] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope 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