Communication method, terminal, network device, communication system and storage medium

Abstract

The embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system and a storage medium. The communication method comprises: transmitting first information to a terminal, the terminal being a terminal having three transmitting antennas, the first information being used to configure an SRS resource set, the SRS resource set functioning as a codebook, the SRS resource set comprising three-port SRS resources, the three-port SRS resources being used to acquire uplink CSI by means of three SRS ports, and the uplink CSI being used for codebook-based PUSCH transmission. By means of the embodiments of the present disclosure, a terminal having three transmitting antennas can transmit SRSs via three SRS ports.

Description

Communication method, terminal, network device, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of wireless communications, and in particular to a communication method, a terminal, a network device, a communication system, and a storage medium. Background Art

[0002] In a communication system, a terminal can send a sounding reference signal (SRS) to an access network device to determine uplink channel quality. The SRS resources used by the terminal to send SRS can be configured by the access network device. With the advancement of communication technology, a terminal may have three transmit antennas. In this case, the access network device needs to be able to configure the corresponding SRS resources for the terminal, which support terminals with three transmit lines.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system, and a storage medium, so as to configure a three-port SRS resource for the terminal.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided. The communication method can be performed by a network device. The method includes: sending first information to a terminal, wherein the terminal is a terminal with three transmitting antennas, the first information is used to configure an SRS resource set, the function of the SRS resource set is a codebook, the SRS resource set includes a 3-port SRS resource, the 3-port SRS resource is used to obtain uplink channel state information (CSI) through three SRS ports, and the uplink CSI is used for codebook-based physical uplink shared channel (PUSCH) transmission.

[0006] According to a second aspect of an embodiment of the present disclosure, a communication method is provided. The communication method can be performed by a terminal. The terminal is a terminal with three transmitting antennas. The method includes: receiving first information sent by a network device, wherein the first information is used to configure an SRS resource set, the SRS resource set functions as a codebook, the SRS resource set includes a three-port SRS resource, the three-port SRS resource is used to obtain uplink CSI through three SRS ports, and the uplink CSI is used for PUSCH transmission based on the codebook.

[0007] According to a third aspect of an embodiment of the present disclosure, a network device is provided. The network device includes a transceiver module. The transceiver module is configured to send first information to a terminal, wherein the terminal is a terminal with three transmit antennas, and the first information is used to configure an SRS resource set, wherein the SRS resource set functions as a codebook, and the SRS resource set includes a three-port SRS resource, and the three-port SRS resource is used to obtain uplink CSI through three SRS ports, and the uplink CSI is used for PUSCH transmission based on the codebook.

[0008] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided. The terminal includes a transceiver module. The transceiver module is configured to receive first information sent by a network device, wherein the terminal is a three-transmit antenna terminal, and the first information is used to configure an SRS resource set, the SRS resource set functions as a codebook, and the SRS resource set includes a three-port SRS resource, the three-port SRS resource is used to obtain uplink CSI through three SRS ports, and the uplink CSI is used for PUSCH transmission based on the codebook.

[0009] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided. The terminal includes at least one processor and a memory storing instructions. When the instructions are executed by the network device, the network device implements the communication method described in the first aspect.

[0010] According to a sixth aspect of an embodiment of the present disclosure, a terminal is provided. The terminal includes at least one processor and a memory storing instructions. When the instructions are executed by the terminal, the terminal implements the communication method described in the second aspect.

[0011] According to a seventh aspect of an embodiment of the present disclosure, a communication system is provided. The communication system includes a terminal and a network device. The network device is configured to execute the communication method described in the first aspect. The terminal is configured to execute the communication method described in the second aspect.

[0012] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is provided. The storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method described in the first aspect or the second aspect.

[0013] According to a ninth aspect of the embodiments of the present disclosure, a program product is provided, which, when executed by a communication device, causes the communication device to execute the communication method as described in the first or second aspect.

[0014] According to a tenth aspect of the embodiments of the present disclosure, a computer program is provided, which, when executed on a computer, causes the computer to execute the communication method according to the first aspect or the second aspect.

[0015] According to an eleventh aspect of the embodiments of the present disclosure, a chip or chip system is provided. The chip or chip system includes a processing circuit. The processing circuit is configured to execute the communication method described in the first aspect or the second aspect.

[0016] Through the embodiments of the present disclosure, a terminal with three transmitting antennas can send SRS through three SRS ports.

[0017] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and do not constitute limitations on the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0019] FIG1 is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0020] FIG2 is a schematic diagram of mapping SRS resources on time-frequency domain resources.

[0021] FIG3 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

[0022] FIG4 is an exemplary flowchart of a communication method provided according to an embodiment of the present disclosure.

[0023] FIG5 is an exemplary flowchart of a communication method provided according to an embodiment of the present disclosure.

[0024] FIG6 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

[0025] FIG7A is an exemplary structural diagram of a terminal provided according to an embodiment of the present disclosure.

[0026] FIG7B is an exemplary structural diagram of a network device provided according to an embodiment of the present disclosure.

[0027] FIG8A is a schematic structural diagram of a communication device provided according to an embodiment of the present disclosure.

[0028] FIG8B is a schematic structural diagram of a chip provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0029] Embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system, and a storage medium.

[0030] In a first aspect, embodiments of the present disclosure provide a communication method. The communication method may be performed by a network device. The method includes: sending first information to a terminal, wherein the terminal is a terminal with three transmit antennas, the first information being used to configure an SRS resource set, the SRS resource set functioning as a codebook, the SRS resource set including a three-port SRS resource, the three-port SRS resource being used to obtain uplink CSI via three SRS ports, the uplink CSI being used for codebook-based PUSCH transmission.

[0031] According to an embodiment of the present application, an SRS resource set functioning as a codebook can be configured for a terminal through the first information. In this way, a three-port SRS resource can be configured for a terminal with three transmit antennas, so that the terminal with three transmit antennas can send SRS through three SRS ports.

[0032] In combination with some embodiments of the first aspect, in some embodiments, a 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

[0033] According to the embodiments of the present application, a 3-port SRS resource can be implemented based on different resource combinations. The SRS resources that make up each resource combination already have clear definitions, structures, and parameters. Therefore, there is no need to redesign the structure and parameters of the 3-port SRS resource. This greatly simplifies the implementation of the 3-port SRS resource.

[0034] In combination with some embodiments of the first aspect, in some embodiments, the SRS resource set may include at least one SRS resource subset, each SRS resource subset corresponding to a 3-port SRS resource; wherein, in the SRS resource set, different SRS resource subsets have different first configurations, and the first configuration includes at least one of the following: space-related information, transmission configuration information (TCI) status.

[0035] According to an embodiment of the present application, a spatial direction can be configured for an SRS resource subset using at least one of spatial related information and TCI status. In this way, different 3-port SRS resources in different SRS resource subsets can be configured to correspond to different spatial directions.

[0036] In combination with some embodiments of the first aspect, in some embodiments, different SRS resource subsets may include the same SRS resource combination.

[0037] In combination with some embodiments of the first aspect, in some embodiments, the number of at least one SRS resource subset may be less than or equal to 2.

[0038] In combination with some embodiments of the first aspect, in some embodiments, in an SRS resource set, time domain resources corresponding to different SRS resource subsets may not overlap with each other.

[0039] In combination with some embodiments of the first aspect, in some embodiments, in the SRS resource combination of each SRS resource subset, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be the same or completely different.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the first information may include a first information element, which is used to configure the number of SRS ports to be 3; wherein the first information element may be associated with at least one of the following: the SRS resource set, the at least one resource subset.

[0041] In combination with some embodiments of the first aspect, in some embodiments, the first information may include a second information element, and the second information element is used to configure the function as a codebook; wherein the second information element is associated with at least one of the following: an SRS resource set, at least one SRS resource subset, and an SRS resource in each SRS resource subset.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the first information may include a third information element, which is used to configure the first resource type; wherein the third information element is associated with at least one of the following: an SRS resource set, at least one SRS resource subset, and an SRS resource in each SRS resource subset.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the number of SRS resource sets can be at least one, and each SRS resource set corresponds to a 3-port SRS resource; wherein, different SRS resource sets have different first configurations, and the first configuration includes at least one of the following: spatial-related information, TCI status.

[0044] According to an embodiment of the present application, a spatial direction can be configured for an SRS resource set using at least one of spatial related information and TCI status. In this way, different 3-port SRS resources in different SRS resource sets can be configured to correspond to different spatial directions.

[0045] In combination with some embodiments of the first aspect, in some embodiments, different SRS resource sets may include the same SRS resource combination.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the number of SRS resource sets may be less than or equal to 2.

[0047] In combination with some embodiments of the first aspect, in some embodiments, time domain resources corresponding to different SRS resource sets may not overlap with each other.

[0048] In combination with some embodiments of the first aspect, in some embodiments, in the SRS resource combination of each SRS resource set, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be the same or completely different.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the first information may include a first information element, where the first information element is used to configure the number of SRS ports to be 3; wherein the first information element is associated with the SRS resource set.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the first information may include a second information element, and the second information element is used to configure the function as a codebook; wherein the second information element is associated with at least one of the following: an SRS resource set, and an SRS resource in each SRS resource set.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the first information may include a third information element, which is used to indicate the first resource type; wherein the third information element is associated with at least one of the following: an SRS resource set, and an SRS resource in each SRS resource set.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the above method may further include: sending second information to the terminal, wherein the second information is used to indicate a first SRS resource, the first SRS resource is used for codebook-based PUSCH transmission, and the first SRS resource is a 3-port SRS resource in the SRS resource set.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the first SRS resource may correspond to an SRS resource subset.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the second information may include a fourth information element, where the fourth information element is used to indicate an SRS resource subset corresponding to the first SRS resource.

[0055] According to an embodiment of the present application, the first SRS resource may be a 3-port SRS resource corresponding to the SRS resource subset. In this way, the adopted 3-port SRS resource may be determined by indicating the SRS resource subset.

[0056] In combination with some embodiments of the first aspect, in some embodiments, when the number of SRS resource subsets is 1, the number of bits of the fourth information element may be 0.

[0057] In combination with some embodiments of the first aspect, in some embodiments, when the number of SRS resource subsets is 2, the number of bits of the fourth information element may be 1; wherein the two SRS resource subsets are indicated by the values ​​0 and 1 of the fourth information element respectively.

[0058] In combination with some embodiments of the first aspect, in some embodiments, the two SRS resource subsets may include a first SRS resource subset and a second SRS resource subset; wherein the value 0 is used to indicate the first SRS resource subset, and the value 1 is used to indicate the second SRS resource subset; or, the value 1 is used to indicate the first SRS resource subset, and the value 0 is used to indicate the second SRS resource subset.

[0059] In combination with some embodiments of the first aspect, in some embodiments, the first SRS resource may correspond to an SRS resource set.

[0060] In combination with some embodiments of the first aspect, in some embodiments, the second information may include a fourth information element, where the fourth information element is used to indicate the first SRS resource.

[0061] According to an embodiment of the present application, the first SRS resource may be a 3-port SRS resource corresponding to the SRS resource set. In this way, the adopted 3-port SRS resource may be determined by indicating the SRS resource set.

[0062] In combination with some embodiments of the first aspect, in some embodiments, when the number of SRS resource sets is 1, the number of bits of the fourth information element may be 0.

[0063] In combination with some embodiments of the first aspect, in some embodiments, when the number of SRS resource sets is 2, the number of bits of the fourth information element may be 1; wherein the two SRS resource sets are indicated by the values ​​0 and 1 of the fourth information element respectively.

[0064] In combination with some embodiments of the first aspect, in some embodiments, the two SRS resource sets include a first SRS resource set and a second SRS resource set; wherein the value 0 is used to indicate the first SRS resource set, and the value 1 is used to indicate the second SRS resource set; or, the value 1 is used to indicate the first SRS resource set, and the value 0 is used to indicate the second SRS resource set.

[0065] In a second aspect, embodiments of the present disclosure provide a communication method. This communication method can be performed by a terminal. The terminal is a three-transmit antenna terminal. The method includes: receiving first information sent by a network device, wherein the first information is used to configure an SRS resource set, the SRS resource set functions as a codebook, the SRS resource set includes a three-port SRS resource, the three-port SRS resource is used to obtain uplink CSI through three SRS ports, and the uplink CSI is used for PUSCH transmission based on the codebook.

[0066] In combination with some embodiments of the second aspect, in some embodiments, a 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

[0067] In combination with some embodiments of the second aspect, in some embodiments, the SRS resource set may include at least one SRS resource subset, each SRS resource subset corresponding to a 3-port SRS resource; wherein, in the SRS resource set, different SRS resource subsets have different first configurations, and the first configuration includes at least one of the following: spatial related information, transmission configuration information TCI status.

[0068] In combination with some embodiments of the second aspect, in some embodiments, different SRS resource subsets may include the same SRS resource combination.

[0069] In combination with some embodiments of the second aspect, in some embodiments, the number of at least one SRS resource subset may be less than or equal to 2.

[0070] In combination with some embodiments of the second aspect, in some embodiments, in an SRS resource set, time domain resources corresponding to different SRS resource subsets may not overlap with each other.

[0071] In combination with some embodiments of the second aspect, in some embodiments, in the SRS resource combination of each SRS resource subset, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be the same or completely different.

[0072] In combination with some embodiments of the second aspect, in some embodiments, the first information may include a first information element, which is used to configure the number of SRS ports to be 3; wherein the first information element may be associated with at least one of the following: the SRS resource set, the at least one resource subset.

[0073] In combination with some embodiments of the second aspect, in some embodiments, the first information may include a second information element, and the second information element is used to configure the function as a codebook; wherein the second information element is associated with at least one of the following: an SRS resource set, at least one SRS resource subset, and an SRS resource in each SRS resource subset.

[0074] In combination with some embodiments of the second aspect, in some embodiments, the first information may include a third information element, which is used to configure the first resource type; wherein the third information element is associated with at least one of the following: an SRS resource set, at least one SRS resource subset, and an SRS resource in each SRS resource subset.

[0075] In combination with some embodiments of the second aspect, in some embodiments, the number of SRS resource sets can be at least one, and each SRS resource set corresponds to a 3-port SRS resource; wherein, different SRS resource sets have different first configurations, and the first configuration includes at least one of the following: spatial-related information, TCI status.

[0076] In combination with some embodiments of the second aspect, in some embodiments, different SRS resource sets may include the same SRS resource combination.

[0077] In combination with some embodiments of the second aspect, in some embodiments, the number of SRS resource sets may be less than or equal to 2.

[0078] In combination with some embodiments of the second aspect, in some embodiments, time domain resources corresponding to different SRS resource sets may not overlap with each other.

[0079] In combination with some embodiments of the second aspect, in some embodiments, in the SRS resource combination of each SRS resource set, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be the same or completely different.

[0080] In combination with some embodiments of the second aspect, in some embodiments, the first information may include a first information element, where the first information element is used to configure the number of SRS ports to be 3; wherein the first information element is associated with the SRS resource set.

[0081] In combination with some embodiments of the second aspect, in some embodiments, the first information may include a second information element, and the second information element is used to configure the function as a codebook; wherein the second information element is associated with at least one of the following: an SRS resource set, and an SRS resource in each SRS resource set.

[0082] In combination with some embodiments of the second aspect, in some embodiments, the first information may include a third information element, which is used to indicate the first resource type; wherein the third information element is associated with at least one of the following: an SRS resource set, and an SRS resource in each SRS resource set.

[0083] In combination with some embodiments of the second aspect, in some embodiments, the above method may further include: receiving second information sent by the network device, wherein the second information is used to indicate a first SRS resource, the first SRS resource is used for codebook-based PUSCH transmission, and the first SRS resource is a 3-port SRS resource in the SRS resource set.

[0084] In combination with some embodiments of the second aspect, in some embodiments, the first SRS resource may correspond to an SRS resource subset.

[0085] In combination with some embodiments of the second aspect, in some embodiments, the second information may include a fourth information element, where the fourth information element is used to indicate an SRS resource subset corresponding to the first SRS resource.

[0086] In combination with some embodiments of the second aspect, in some embodiments, when the number of SRS resource subsets is 1, the number of bits of the fourth information element may be 0.

[0087] In combination with some embodiments of the second aspect, in some embodiments, when the number of SRS resource subsets is 2, the number of bits of the fourth information element may be 1; wherein the two SRS resource subsets are indicated by the values ​​0 and 1 of the fourth information element respectively.

[0088] In combination with some embodiments of the second aspect, in some embodiments, the two SRS resource subsets may include a first SRS resource subset and a second SRS resource subset; wherein the value 0 is used to indicate the first SRS resource subset, and the value 1 is used to indicate the second SRS resource subset; or, the value 1 is used to indicate the first SRS resource subset, and the value 0 is used to indicate the second SRS resource subset.

[0089] In combination with some embodiments of the second aspect, in some embodiments, the first SRS resource may correspond to an SRS resource set.

[0090] In combination with some embodiments of the second aspect, in some embodiments, the second information may include a fourth information element, where the fourth information element is used to indicate the first SRS resource.

[0091] In combination with some embodiments of the second aspect, in some embodiments, when the number of SRS resource sets is 1, the number of bits of the fourth information element may be 0.

[0092] In combination with some embodiments of the second aspect, in some embodiments, when the number of SRS resource sets is 2, the number of bits of the fourth information element may be 1; wherein the two SRS resource sets are indicated by the values ​​0 and 1 of the fourth information element respectively.

[0093] In combination with some embodiments of the second aspect, in some embodiments, the two SRS resource sets include a first SRS resource set and a second SRS resource set; wherein the value 0 is used to indicate the first SRS resource set, and the value 1 is used to indicate the second SRS resource set; or, the value 1 is used to indicate the first SRS resource set, and the value 0 is used to indicate the second SRS resource set.

[0094] In a third aspect, embodiments of the present disclosure provide a network device. The network device includes a transceiver module. The transceiver module is configured to send first information to a terminal, where the terminal is a terminal with three transmit antennas. The first information is used to configure an SRS resource set, where the SRS resource set functions as a codebook and includes a three-port SRS resource. The three-port SRS resource is used to obtain uplink CSI via three SRS ports, and the uplink CSI is used for codebook-based PUSCH transmission.

[0095] In combination with some embodiments of the third aspect, in some embodiments, a 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

[0096] In combination with some embodiments of the third aspect, in some embodiments, the SRS resource set may include at least one SRS resource subset, each SRS resource subset corresponding to a 3-port SRS resource; wherein, in the SRS resource set, different SRS resource subsets have different first configurations, and the first configuration includes at least one of the following: spatial-related information, TCI status.

[0097] In combination with some embodiments of the third aspect, in some embodiments, different SRS resource subsets may include the same SRS resource combination.

[0098] In combination with some embodiments of the third aspect, in some embodiments, the number of at least one SRS resource subset may be less than or equal to 2.

[0099] In combination with some embodiments of the third aspect, in some embodiments, in an SRS resource set, time domain resources corresponding to different SRS resource subsets may not overlap with each other.

[0100] In combination with some embodiments of the third aspect, in some embodiments, in the SRS resource combination of each SRS resource subset, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be the same or completely different.

[0101] In combination with some embodiments of the third aspect, in some embodiments, the first information may include a first information element, which is used to configure the number of SRS ports to be 3; wherein the first information element may be associated with at least one of the following: the SRS resource set, the at least one resource subset.

[0102] In combination with some embodiments of the third aspect, in some embodiments, the first information may include a second information element, and the second information element is used to configure the function as a codebook; wherein the second information element is associated with at least one of the following: an SRS resource set, at least one SRS resource subset, and an SRS resource in each SRS resource subset.

[0103] In combination with some embodiments of the third aspect, in some embodiments, the first information may include a third information element, which is used to configure the first resource type; wherein the third information element is associated with at least one of the following: an SRS resource set, at least one SRS resource subset, and an SRS resource in each SRS resource subset.

[0104] In combination with some embodiments of the third aspect, in some embodiments, the number of SRS resource sets can be at least one, and each SRS resource set corresponds to a 3-port SRS resource; wherein, different SRS resource sets have different first configurations, and the first configuration includes at least one of the following: spatial-related information, TCI status.

[0105] In combination with some embodiments of the third aspect, in some embodiments, different SRS resource sets may include the same SRS resource combination.

[0106] In combination with some embodiments of the third aspect, in some embodiments, the number of SRS resource sets may be less than or equal to 2.

[0107] In combination with some embodiments of the third aspect, in some embodiments, time domain resources corresponding to different SRS resource sets may not overlap with each other.

[0108] In combination with some embodiments of the third aspect, in some embodiments, in the SRS resource combination of each SRS resource set, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be the same or completely different.

[0109] In combination with some embodiments of the third aspect, in some embodiments, the first information may include a first information element, where the first information element is used to configure the number of SRS ports to be 3; wherein the first information element is associated with the SRS resource set.

[0110] In combination with some embodiments of the third aspect, in some embodiments, the first information may include a second information element, and the second information element is used to configure the function as a codebook; wherein the second information element is associated with at least one of the following: an SRS resource set, and an SRS resource in each SRS resource set.

[0111] In combination with some embodiments of the third aspect, in some embodiments, the first information may include a third information element, which is used to indicate the first resource type; wherein the third information element is associated with at least one of the following: an SRS resource set, and an SRS resource in each SRS resource set.

[0112] In combination with some embodiments of the third aspect, in some embodiments, the transceiver module can also be configured to send second information to the terminal, wherein the second information is used to indicate a first SRS resource, the first SRS resource is used for codebook-based PUSCH transmission, and the first SRS resource is a 3-port SRS resource in the SRS resource set.

[0113] In combination with some embodiments of the third aspect, in some embodiments, the first SRS resource may correspond to an SRS resource subset.

[0114] In combination with some embodiments of the third aspect, in some embodiments, the second information may include a fourth information element, where the fourth information element is used to indicate an SRS resource subset corresponding to the first SRS resource.

[0115] In combination with some embodiments of the third aspect, in some embodiments, when the number of SRS resource subsets is 1, the number of bits of the fourth information element may be 0.

[0116] In combination with some embodiments of the third aspect, in some embodiments, when the number of SRS resource subsets is 2, the number of bits of the fourth information element may be 1; wherein the two SRS resource subsets are indicated by the values ​​0 and 1 of the fourth information element respectively.

[0117] In combination with some embodiments of the third aspect, in some embodiments, the two SRS resource subsets may include a first SRS resource subset and a second SRS resource subset; wherein the value 0 is used to indicate the first SRS resource subset, and the value 1 is used to indicate the second SRS resource subset; or, the value 1 is used to indicate the first SRS resource subset, and the value 0 is used to indicate the second SRS resource subset.

[0118] In combination with some embodiments of the third aspect, in some embodiments, the first SRS resource may correspond to an SRS resource set.

[0119] In combination with some embodiments of the third aspect, in some embodiments, the second information may include a fourth information element, where the fourth information element is used to indicate the first SRS resource.

[0120] In combination with some embodiments of the third aspect, in some embodiments, when the number of SRS resource sets is 1, the number of bits of the fourth information element may be 0.

[0121] In combination with some embodiments of the third aspect, in some embodiments, when the number of SRS resource sets is 2, the number of bits of the fourth information element may be 1; wherein the two SRS resource sets are indicated by the values ​​0 and 1 of the fourth information element respectively.

[0122] In combination with some embodiments of the third aspect, in some embodiments, the two SRS resource sets include a first SRS resource set and a second SRS resource set; wherein the value 0 is used to indicate the first SRS resource set, and the value 1 is used to indicate the second SRS resource set; or, the value 1 is used to indicate the first SRS resource set, and the value 0 is used to indicate the second SRS resource set.

[0123] In a fourth aspect, embodiments of the present disclosure provide a terminal. The terminal includes a transceiver module. The transceiver module is configured to receive first information sent by a network device, wherein the terminal is a three-transmit antenna terminal, and the first information is used to configure an SRS resource set, wherein the SRS resource set functions as a codebook, and the SRS resource set includes a three-port SRS resource, which is used to obtain uplink CSI via three SRS ports, and the uplink CSI is used for codebook-based PUSCH transmission.

[0124] In combination with some embodiments of the fourth aspect, in some embodiments, a 3-port SRS resource can be implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

[0125] In combination with some embodiments of the fourth aspect, in some embodiments, the SRS resource set may include at least one SRS resource subset, each SRS resource subset corresponding to a 3-port SRS resource; wherein, in the SRS resource set, different SRS resource subsets have different first configurations, and the first configuration includes at least one of the following: spatial related information, transmission configuration information TCI status.

[0126] In combination with some embodiments of the fourth aspect, in some embodiments, different SRS resource subsets may include the same SRS resource combination.

[0127] In combination with some embodiments of the fourth aspect, in some embodiments, the number of at least one SRS resource subset may be less than or equal to 2.

[0128] In combination with some embodiments of the fourth aspect, in some embodiments, in an SRS resource set, time domain resources corresponding to different SRS resource subsets may not overlap with each other.

[0129] In combination with some embodiments of the fourth aspect, in some embodiments, in the SRS resource combination of each SRS resource subset, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be the same or completely different.

[0130] In combination with some embodiments of the fourth aspect, in some embodiments, the first information may include a first information element, which is used to configure the number of SRS ports to be 3; wherein the first information element may be associated with at least one of the following: the SRS resource set, the at least one resource subset.

[0131] In combination with some embodiments of the fourth aspect, in some embodiments, the first information may include a second information element, and the second information element is used to configure the function as a codebook; wherein the second information element is associated with at least one of the following: an SRS resource set, at least one SRS resource subset, and an SRS resource in each SRS resource subset.

[0132] In combination with some embodiments of the fourth aspect, in some embodiments, the first information may include a third information element, which is used to configure the first resource type; wherein the third information element is associated with at least one of the following: an SRS resource set, at least one SRS resource subset, and an SRS resource in each SRS resource subset.

[0133] In combination with some embodiments of the fourth aspect, in some embodiments, the number of SRS resource sets can be at least one, and each SRS resource set corresponds to a 3-port SRS resource; wherein, different SRS resource sets have different first configurations, and the first configuration includes at least one of the following: spatial-related information, TCI status.

[0134] In combination with some embodiments of the fourth aspect, in some embodiments, different SRS resource sets may include the same SRS resource combination.

[0135] In combination with some embodiments of the fourth aspect, in some embodiments, the number of SRS resource sets may be less than or equal to 2.

[0136] In combination with some embodiments of the fourth aspect, in some embodiments, time domain resources corresponding to different SRS resource sets may not overlap with each other.

[0137] In combination with some embodiments of the fourth aspect, in some embodiments, in the SRS resource combination of each SRS resource set, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be the same or completely different.

[0138] In combination with some embodiments of the fourth aspect, in some embodiments, the first information may include a first information element, where the first information element is used to configure the number of SRS ports to be 3; wherein the first information element is associated with the SRS resource set.

[0139] In combination with some embodiments of the fourth aspect, in some embodiments, the first information may include a second information element, and the second information element is used to configure the function as a codebook; wherein the second information element is associated with at least one of the following: an SRS resource set, and an SRS resource in each SRS resource set.

[0140] In combination with some embodiments of the fourth aspect, in some embodiments, the first information may include a third information element, which is used to indicate the first resource type; wherein the third information element is associated with at least one of the following: an SRS resource set, and an SRS resource in each SRS resource set.

[0141] In combination with some embodiments of the fourth aspect, in some embodiments, the transceiver module can also be configured to receive second information sent by the network device, wherein the second information is used to indicate a first SRS resource, the first SRS resource is used for codebook-based PUSCH transmission, and the first SRS resource is a 3-port SRS resource in the SRS resource set.

[0142] In combination with some embodiments of the fourth aspect, in some embodiments, the first SRS resource may correspond to an SRS resource subset.

[0143] In combination with some embodiments of the fourth aspect, in some embodiments, the second information may include a fourth information element, where the fourth information element is used to indicate an SRS resource subset corresponding to the first SRS resource.

[0144] In combination with some embodiments of the fourth aspect, in some embodiments, when the number of SRS resource subsets is 1, the number of bits of the fourth information element may be 0.

[0145] In combination with some embodiments of the fourth aspect, in some embodiments, when the number of SRS resource subsets is 2, the number of bits of the fourth information element may be 1; wherein the two SRS resource subsets are indicated by the values ​​0 and 1 of the fourth information element respectively.

[0146] In combination with some embodiments of the fourth aspect, in some embodiments, the two SRS resource subsets may include a first SRS resource subset and a second SRS resource subset; wherein the value 0 is used to indicate the first SRS resource subset, and the value 1 is used to indicate the second SRS resource subset; or, the value 1 is used to indicate the first SRS resource subset, and the value 0 is used to indicate the second SRS resource subset.

[0147] In combination with some embodiments of the fourth aspect, in some embodiments, the first SRS resource may correspond to an SRS resource set.

[0148] In combination with some embodiments of the fourth aspect, in some embodiments, the second information may include a fourth information element, where the fourth information element is used to indicate the first SRS resource.

[0149] In combination with some embodiments of the fourth aspect, in some embodiments, when the number of SRS resource sets is 1, the number of bits of the fourth information element may be 0.

[0150] In combination with some embodiments of the fourth aspect, in some embodiments, when the number of SRS resource sets is 2, the number of bits of the fourth information element may be 1; wherein the two SRS resource sets are indicated by the values ​​0 and 1 of the fourth information element respectively.

[0151] In combination with some embodiments of the fourth aspect, in some embodiments, the two SRS resource sets include a first SRS resource set and a second SRS resource set; wherein the value 0 is used to indicate the first SRS resource set, and the value 1 is used to indicate the second SRS resource set; or, the value 1 is used to indicate the first SRS resource set, and the value 0 is used to indicate the second SRS resource set.

[0152] In a fifth aspect, embodiments of the present disclosure provide a network device. The terminal includes at least one processor and a memory storing instructions. The instructions, when executed by the network device, enable the network device to implement the communication method as described in any one of the first aspect and possible implementations thereof.

[0153] In a sixth aspect, an embodiment of the present disclosure provides a terminal. The terminal includes at least one processor and a memory storing instructions. When the instructions are executed by the terminal, the terminal implements the communication method as described in any one of the second aspect and possible implementations thereof.

[0154] In a seventh aspect, embodiments of the present disclosure provide a communication system. The communication system includes a terminal and a network device. The network device is configured to perform the communication method described in any one of the first aspect and possible implementations thereof. The terminal is configured to perform the communication method described in any one of the second aspect and possible implementations thereof.

[0155] In an eighth aspect, an embodiment of the present disclosure provides a storage medium storing instructions that, when executed on a communication device, cause the communication device to execute the communication method described in any one of the first aspect, the second aspect, and possible implementations thereof.

[0156] In a ninth aspect, an embodiment of the present disclosure provides a program product. When the program product is executed by a communication device, the communication device executes the communication method as described in any one of the first aspect, the second aspect, and possible implementations thereof.

[0157] In a tenth aspect, an embodiment of the present disclosure provides a computer program. When the computer program is executed on a computer, the computer executes the communication method as described in any one of the first aspect, the second aspect, and possible implementations thereof.

[0158] In an eleventh aspect, embodiments of the present disclosure provide a chip or chip system. The chip or chip system includes a processing circuit. The processing circuit is configured to execute the communication method as described in any one of the first aspect, the second aspect, and possible implementations thereof.

[0159] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, and chip systems are all used to execute the communication methods provided in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0160] The present disclosure provides a communication method, terminal, network device, communication system, and storage medium. In some embodiments, the terms communication method, information processing method, and information transmission method are interchangeable; the terms network element, network device, network function, and network entity are interchangeable; and the terms communication system and information processing system are interchangeable.

[0161] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0162] In the embodiments of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0163] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0164] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when articles such as "a", "an", "the" in English are used in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0165] In the embodiments of the present disclosure, “plurality” refers to two or more than two.

[0166] In some embodiments, the terms "at least one", "one or more", etc. can be used interchangeably.

[0167] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0168] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0169] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for example, if the description object is "information", then the "second information" and the "first information" can be the same information or different information, and their contents can be the same or different.

[0170] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0171] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0172] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0173] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0174] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0175] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0176] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0177] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0178] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0179] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0180] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0181] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0182] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0183] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things (IoT) device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0184] In some embodiments, the network device 102 can be, for example, a node or device that accesses the terminal to a wireless network. The network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a satellite base station, a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0185] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces within the network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0186] In some embodiments, the network device 102 can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0187] In some embodiments, the network device 102 may be one device, or multiple devices or a device group. The network device 102 may be virtual or physical.

[0188] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0189] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0190] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0191] In a communication system, a terminal can send an SRS to an access network device to obtain uplink channel quality. The SRS resources used by the terminal to send the SRS can be configured by the access network device. The access network device can send configuration information to the terminal to configure the SRS resources.

[0192] A terminal may have one or more antenna ports, and may transmit SRS via one or more antenna ports. In this case, the SRS resources configured by the access network device for the terminal may correspond to the number of antenna ports of the terminal. More specifically, an SRS resource may have one or more SRS ports, and the number of SRS ports may correspond to the number of antenna ports of the terminal. In some embodiments, the number of SRS ports supported by an SRS resource may be 1, 2, 4, 8, etc. In some embodiments, the number of SRS ports may be configured using the high-level parameter nrofSRS-Ports in the configuration information.

[0193] The SRS resource may occupy one or more symbols in the time domain (e.g., orthogonal frequency division multiplexing (OFDM) symbols). The symbols occupied by the SRS resource may be continuous in the time domain. In some embodiments, the number of available time domain resources, i.e., the number of symbols that the SRS resource may occupy, may be 1, 2, 4, 8, 10, 12, 14, etc. In some embodiments, the number of symbols occupied by the SRS resource may be configured by a high-level parameter nrofSymbol in the configuration information. In some embodiments, the position of the starting symbol of the SRS resource may be 0, 1, 2, 3, 4, 5, etc. In some embodiments, the position of the starting symbol of the SRS resource may be configured by a high-level parameter startPosition in the configuration information.

[0194] Figure 2 is a schematic diagram of the mapping of SRS resources onto time-frequency domain resources. As shown in Figure 2, three SRS resources are mapped onto the time-frequency domain resources: the first SRS resource, the second SRS resource, and the third SRS resource. The first SRS resource occupies one symbol in the time domain and is the third symbol from the last symbol in the timeslot where the first SRS resource is located. The higher-level parameters nrofSymbol and startPosition associated with the first SRS resource can be 1 and 3, respectively. The second SRS resource occupies four symbols in the time domain and the last symbol of the second SRS resource is the second symbol from the last symbol in the timeslot where the second SRS resource is located. The higher-level parameters nrofSymbol and startPosition associated with the second SRS resource can be 4 and 2, respectively. The third SRS resource occupies two symbols in the time domain and the last symbol of the third SRS resource is the zeroth symbol from the last symbol in the timeslot where the third SRS resource is located. The higher-level parameters nrofSymbol and startPosition associated with the third SRS resource can be 2 and 0, respectively.

[0195] The SRS resources can be arranged in a comb-like manner in the frequency domain. That is to say, the subcarriers occupied by an SRS resource are arranged at equal intervals. Obviously, the subcarriers occupied by an SRS resource are non-continuous. In some embodiments, the arrangement period of the subcarriers occupied by the SRS resources in the frequency domain can be 2, 4, etc. In some embodiments, the arrangement period of the subcarriers occupied by the SRS resources in the frequency domain can be configured by the high-level parameter transmissionComb in the configuration information. In some embodiments, the offset of the subcarriers occupied by the SRS resources in the frequency domain can be 0, 1, 2, 3, etc. In some embodiments, the offset of the subcarriers occupied by the SRS resources in the frequency domain can be configured by the high-level parameter combOffset in the configuration information.

[0196] Continuing with Figure 2, the first SRS resource is arranged in a comb-like pattern in the frequency domain, with an arrangement period of 2, and the offset of the first occupied subcarrier relative to the first subcarrier (lower edge) of the time-frequency resource is 0. The high-level parameters transmissionComb and combOffset related to the first SRS resource can be 2 and 0, respectively. Similarly, the high-level parameters transmissionComb and combOffset related to the second SRS resource can be 2 and 1, respectively, and the high-level parameters transmissionComb and combOffset related to the third SRS resource can be 4 and 0, respectively.

[0197] In some embodiments, the mapping of an 8-port SRS resource (i.e., an SRS resource supporting 8 SRS ports) to time-frequency resources can be performed using either time division multiplexing (TDM) or non-TDM. In some embodiments, whether the 8-port SRS resource uses the TDM method can be configured using the higher-level parameter transmissionComb in the configuration information. In some embodiments, for the non-TDM method, the mapping of the 8-port SRS resource to time-frequency resources can be achieved by arranging different combinations of period, subcarrier offset, and cyclic shift. In one example, the higher-level parameter transmissionComb associated with the 8-port SRS resource can be 2, and different cyclic shifts can be used. In another example, the higher-level parameter transmissionComb associated with the 8-port SRS resource can be 4 or 8, and different subcarrier offsets and cyclic shifts can be used. In some embodiments, for the TDM method, the 8-port SRS resource can occupy multiple symbols. In one example, the 8-port SRS resource can occupy 2 symbols. In this case, the 8 SRS ports corresponding to the 8-port SRS resource can be divided into two SRS port subsets. Each SRS port subset can include 4 SRS ports. For example, a first subset of SRS ports may include ports 0, 1, 4, 5, and a second subset of SRS ports may include ports 2, 3, 6, 7.

[0198] In order to implement codebook-based uplink transmission (for example, physical uplink shared channel (PUSCH)), the SRS resource set configured by the access network device for the terminal can be applicable to codebook-based uplink transmission. The SRS resource set may include one or more SRS resources. After receiving the SRS sent by the terminal through the SRS resource, the access network device may send an SRS resource indication (SRS resource indication, SRI) to the terminal to indicate the selected SRS resource. At the same time, the access network device may determine the precoding matrix and number of transmission layers used by the terminal for actual transmission, and notify the terminal through the transmit precoding matrix indicator (TPMI) and rank indicator (RI) respectively. The terminal precodes the data according to the TPMI and RI, and uses the antenna port corresponding to the SRS resource indicated by the SRI to send the precoded data.

[0199] With the development of communication technology, a terminal may have three transmitting antennas. In this case, the access network equipment needs to be able to configure corresponding SRS resources for the terminal.

[0200] FIG3 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure. As shown in FIG3 , an embodiment of the present disclosure relates to a communication method. The communication method includes steps S301 to S305. However, it should be understood that the communication method may also include only some of steps S301 to S305.

[0201] In step S301 , the terminal 101 sends capability information to the network device 102 .

[0202] In some embodiments, network device 102 may receive capability information.

[0203] In some embodiments, the capability information may be used to indicate the capability of the terminal 101 .

[0204] In some embodiments, the capability information may be used to indicate functions supported by the terminal 101 .

[0205] In some embodiments, the name of the capability information is not limited, and it can be, for example, UE capability (UE capability), UE capability information (UE capability information), UE capability indication, function information, etc., and the embodiments of the present disclosure do not make specific limitations on this.

[0206] In some embodiments, capability information may be carried in a ueCapabilityInformation information element (IE).

[0207] In some embodiments, the capability information may include at least one of the following: SRS resource parameters and transmit antenna port parameters. It is understood that the capability information may also include other parameters, which are not specifically limited in the present disclosure. For example, a terminal may use capability information to inform a base station that it has three transmit antennas, so that the base station can configure SRS resources for the terminal with three transmit antennas.

[0208] In some embodiments, the SRS resource parameter may be used to indicate parameters of the terminal 101 related to the SRS resource.

[0209] In some embodiments, the SRS resource parameters may be carried in the featuresSetsUplink information element.

[0210] In some embodiments, the transmit antenna port parameter may be used to indicate the number of antenna ports of the transmit antenna of terminal 101. In one example, the number of antenna ports of terminal 101 may be equal to 3. In other words, the number of transmit antennas of terminal 101 may be equal to 3.

[0211] In some embodiments, the port parameters of the transmitting antenna may be carried in the srs-TxSwitch information element.

[0212] In some embodiments, the capability information may be carried in upper layer signaling, for example, signaling in a radio resource control (RRC) process.

[0213] In some embodiments, the capability information may be carried in a UE Capability Information message. In one example, the UE Capability Information message may be transmitted during an RRC process. In some embodiments, the UE Capability Information message may be sent by terminal 101 in response to a UE Capability Information Query message from network device 102. In some embodiments, the UE Capability Information message may be proactively sent by terminal 101.

[0214] In some embodiments, network device 102 may not receive capability information.

[0215] In some embodiments, network device 102 may not expect to receive capability information.

[0216] In step S302 , the network device 102 sends first information to the terminal 101 .

[0217] In some embodiments, terminal 101 may receive first information.

[0218] The network device may send the first information to the terminal based on the capability information of the terminal. Of course, the network device may send the first information to the terminal not based on the capability information of the terminal. That is, the network device may send the first information to the terminal regardless of whether the terminal sends the capability information to the network device.

[0219] In some embodiments, the first information can be used to configure an SRS resource set. The SRS resource set includes at least one 3-port SRS resource. In some embodiments, the terminal notifies the network device that it is a 3-transmit antenna terminal and needs to obtain a 3-port SRS resource. The network device then uses the first information to configure the SRS resource for the terminal. For example, the network device can configure an SRS resource set for the terminal, where the SRS resource set includes multiple SRS resources, where the SRS resource is a 3-port SRS resource.

[0220] In some embodiments, the first information may be used to indicate the configuration of the SRS resource set to the terminal 101 .

[0221] In some embodiments, the name of the first information is not limited, and it can be, for example, configuration information, SRS resource configuration information, resource configuration information, SRS resource indication information, SRS resource parameter information, etc. The embodiments of the present disclosure do not make specific limitations on this.

[0222] In some embodiments, the first information may be carried in an SRS-Config information element.

[0223] In some embodiments, the first information may be carried in higher-layer signaling, for example, signaling in an RRC process.

[0224] In some embodiments, the number of SRS resource sets may be greater than or equal to 1. Each SRS resource set may include at least one 3-port SRS resource.

[0225] In some embodiments, the SRS resource set can function as a codebook. That is, a three-port SRS resource in the SRS resource set can obtain uplink CSI via the three SRS ports. In some embodiments, the CSI can be used for codebook-based PUSCH transmission. In other words, the CSI can be used for codebook-based PUSCH transmission.

[0226] In some embodiments, a 3-port SRS resource may include multiple implementations. In some embodiments, a 3-port SRS resource may be implemented by a combination of one or more of the following SRS resources: a 1-port SRS resource, a 2-port SRS resource, a 4-port SRS resource, or an 8-port SRS resource. In other words, a 3-port SRS resource may include at least one of the following: a 1-port SRS resource, a 2-port SRS resource, a 4-port SRS resource, or an 8-port SRS resource. In one example, a 1-port SRS resource may also be referred to as a single-port SRS resource. It is understood that a 3-port SRS resource may also be implemented by an SRS resource having other numbers of ports, and this is not specifically limited in the present disclosure.

[0227] In some embodiments, a 3-port SRS resource may include one of the following resource combinations: one 1-port SRS resource, one 2-port SRS resource, three 1-port SRS resources, two 2-port SRS resources, one 1-port SRS resource and one 2-port SRS resource, one 4-port SRS resource, or one 8-port SRS resource. It will be appreciated that each resource combination can be used to implement a 3-port SRS resource and, therefore, may also be referred to as an SRS resource combination. In some embodiments, a 3-port SRS resource implemented by any of the above resource combinations may be referred to as an "equivalent" 3-port SRS resource.

[0228] In some embodiments, the first information may include a first information element.

[0229] In some embodiments, the first information element may be used to indicate that the number of ports of a 3-port SRS resource in an SRS resource set is 3. In some embodiments, the first information element may be used to configure the number of SRS ports associated with the SRS resource set to 3. In one example, the first information element may be used to indicate that the number of SRS ports associated with the SRS resource set is 3. For example, the first information element may be used to directly indicate that the value of the SRS port number is 3. In one example, the first information element may be used to enable the number of SRS ports associated with the SRS resource set to be 3. For example, the first information element may be used to enable an SRS port number parameter. The SRS port number parameter indicates that the SRS port number is 3. After being enabled by the first information element, the SRS port number parameter takes effect.

[0230] In some embodiments, the first information may include the second information element.

[0231] In some embodiments, the second information element may be used to configure the function as a codebook.

[0232] In some embodiments, the second information element may be used to configure the function of the SRS resource set as a codebook.

[0233] In some embodiments, the second information element may be used to indicate that the SRS resource set is used as a codebook.

[0234] In some embodiments, the second information element may be a usage information element. In one example, the value of the usage information element may be equal to "codebook," indicating that the usage is codebook. For example, the value range of the usage information element may be {beamManagement, codebook, nonCodebook, antennaSwitching}. Therefore, for terminal 101, the value of the usage information element in the first message may be equal to codebook. Of course, the second information element may also be other information elements or signaling, which is not specifically limited in the present embodiment.

[0235] In some embodiments, the first information may include a third information element.

[0236] In some embodiments, the third information element may be used to configure the first resource type.

[0237] In some embodiments, the third information element may be used to configure the resource type of the SRS resource set to be the first resource type.

[0238] In some embodiments, the resource type is used to indicate the periodicity of the 3-port SRS resource.

[0239] In some embodiments, the resource type may be used to indicate the periodicity of the 3-port SRS resources in the SRS resource set.

[0240] In some embodiments, resource types may include: periodic, semi-persistent, aperiodic

[0241] In some embodiments, the first resource type may be one of the following: periodic, semi-persistent, or aperiodic.

[0242] In some embodiments, the third information element may be a resourceType information element. In one example, the value range of the resourceType information element may be {periodic, semi-persistent, aperiodic}. Therefore, for terminal 101, the value of the resourceType information element in the first message may be equal to any one of periodic, semi-persistent, and aperiodic. Of course, the third information element may also be other information elements or signaling, which is not specifically limited in the present embodiment.

[0243] In some embodiments, the first information may include a fifth information element.

[0244] In some sets of embodiments, the fifth information element is associated with a first configuration of a 3-port SRS resource. The first configuration is associated with a beam direction of the 3-port SRS resource.

[0245] In some embodiments, the fifth information element may be used to indicate the beam direction of a 3-port SRS resource in the SRS resource set.

[0246] In some embodiments, the first configuration may include at least one of the following: space-related information, transmission configuration information (TCI) status.

[0247] In some embodiments, the fifth information element may be used to indicate the spatial related information of the 3-port SRS resource. That is, the first configuration may be the spatial related information.

[0248] In some embodiments, the fifth information element may be a spatialRelationInfo information element.

[0249] In some embodiments, the fifth information element may be used to indicate a beam with a 3-port SRS resource. That is, the first configuration may be a TCI state.

[0250] In some embodiments, the fifth information element may be a TCI-state information element.

[0251] It should be noted that the first information may also include other information and / or information elements, which is not specifically limited in the embodiment of the present disclosure.

[0252] In some embodiments, the number of SRS resource sets may be 1, and the SRS resource set may include at least one SRS resource subset. An SRS resource subset may include a resource configuration, thereby implementing a 3-port SRS resource. Then, at least one SRS resource subset in the SRS set may be used to implement at least one 3-port SRS resource.

[0253] It is understandable that an SRS resource subset may be defined as a resource form between an SRS resource set and an SRS resource. Specifically, an SRS resource set may include at least one SRS resource subset, and an SRS resource subset may include at least one SRS resource.

[0254] In some embodiments, the information element corresponding to the SRS resource subset can be placed between the information element corresponding to the SRS resource set and the information element corresponding to the SRS resource. In one example, the information element corresponding to the SRS resource set can be an SRS-ResourceSet information element, the information element corresponding to the SRS resource can be an SRS-Resource information element, and the information element corresponding to the SRS resource subset can be an SRS-ResourceSubset information element. Of course, the information element corresponding to the SRS resource subset can also be other information elements, and this embodiment of the present disclosure does not specifically limit this.

[0255] In some embodiments, the information element corresponding to the SRS resource set may include identification information of the SRS resource subset. In one example, the SRS-ResourceSet information element may include the SRS-ResourceSubsetIDList information element. The SRS-ResourceSubsetIDList information element may include identification information of the SRS resource subset in the SRS resource set. In some embodiments, the identification information of the SRS resource subset may include at least one of the following: an index number of the SRS resource subset, or an identifier of the SRS resource subset.

[0256] In some embodiments, the information element corresponding to the SRS resource subset may include identification information of the SRS resource. In one example, the SRS-ResourceSubset information element may include the SRS-ResourceIDList information element. The SRS-ResourceIDList information element may include identification information of the SRS resources in the SRS resource subset. In some embodiments, the identification information of the SRS resource may include at least one of the following: an index number of the SRS resource, or an identifier of the SRS resource.

[0257] In some embodiments, the first information element may be associated with one of the following: an SRS resource set, an SRS resource subset. In some embodiments, the first information element may be set in an information element for an SRS resource set. In one example, the first information element may be set in an information element corresponding to an SRS resource set. For example, the first information element may be set in an SRS-ResourceSet information element. In some embodiments, the first information element may be set in an information element for an SRS resource subset. In one example, the first information element may be set in an information element corresponding to an SRS resource subset. For example, the first information element may be set in an SRS-ResourceSubset information element.

[0258] In some embodiments, the second information element may be associated with one of the following: an SRS resource set, an SRS resource subset, or an SRS resource in an SRS resource subset. In some embodiments, the second information element may be set in an information element for an SRS resource set. In one example, the second information element may be set in an information element corresponding to an SRS resource set. For example, the second information element may be set in an SRS-ResourceSet information element. In some embodiments, the second information element may be set in an information element for an SRS resource subset. In one example, the second information element may be set in an information element corresponding to an SRS resource subset. For example, the second information element may be set in an SRS-ResourceSubset information element. In some embodiments, the second information element may be set in an information element for an SRS resource. In one example, the second information element may be set in an information element corresponding to an SRS resource. For example, the second information element may be set in an SRS-Resource information element.

[0259] In some embodiments, the third information element may be associated with one of the following: an SRS resource set, an SRS resource subset, or an SRS resource in an SRS resource subset. In some embodiments, the third information element may be set in an information element for an SRS resource set. In one example, the third information element may be set in an information element corresponding to an SRS resource set. For example, the third information element may be set in an SRS-ResourceSet information element. In some embodiments, the third information element may be set in an information element for an SRS resource subset. In one example, the third information element may be set in an information element corresponding to an SRS resource subset. For example, the third information element may be set in an SRS-ResourceSubset information element. In some embodiments, the third information element may be set in an information element for an SRS resource. In one example, the third information element may be set in an information element corresponding to an SRS resource. For example, the third information element may be set in an SRS-Resource information element.

[0260] In some embodiments, the fifth information element may be associated with one of the following: an SRS resource set, an SRS resource subset, or an SRS resource in an SRS resource subset. In some embodiments, the fifth information element may be set in an information element for an SRS resource set. In one example, the fifth information element may be set in an information element corresponding to an SRS resource set. For example, the fifth information element may be set in an SRS-ResourceSet information element. In some embodiments, the fifth information element may be set in an information element for an SRS resource subset. In one example, the fifth information element may be set in an information element corresponding to an SRS resource subset. For example, the fifth information element may be set in an SRS-ResourceSubset information element. In some embodiments, the fifth information element may be set in an information element for an SRS resource. In one example, the fifth information element may be set in an information element corresponding to an SRS resource. For example, the fifth information element may be set in an SRS-Resource information element.

[0261] In some embodiments, different SRS resource subsets in an SRS resource set may correspond to different beam directions. That is, different 3-port SRS resources in an SRS resource set may correspond to different beam directions. In some embodiments, the fifth information element associated with different SRS resource subsets in an SRS resource set may have different values, thereby configuring different beam directions for different SRS resource subsets.

[0262] In some embodiments, the number of SRS resource subsets in the SRS resource set may be 1 or 2. It is understood that in some cases, the number of SRS resource subsets in the SRS resource set may be greater than 2, which is not specifically limited in the embodiments of the present disclosure.

[0263] In some embodiments, an SRS resource subset may include one 1-port SRS resource. In this case, the resource configuration of a 3-port SRS resource in an SRS resource subset may be one 1-port SRS resource. In other words, the 3-port SRS resource in an SRS resource subset may be implemented based on one 1-port SRS resource.

[0264] In some embodiments, an SRS resource subset may include one 2-port SRS resource. In this case, the resource configuration of a 3-port SRS resource in an SRS resource subset may be one 2-port SRS resource. In other words, the 3-port SRS resource in an SRS resource subset may be implemented based on one 2-port SRS resource.

[0265] In some embodiments, an SRS resource subset may include one 3-port SRS resource. In this case, the resource configuration of the 3-port SRS resource in one SRS resource subset may be one 3-port SRS resource. In other words, the 3-port SRS resource in one SRS resource subset may be implemented based on one 3-port SRS resource.

[0266] In some embodiments, an SRS resource subset may include two 2-port SRS resources. In this case, the resource configuration of a 3-port SRS resource in an SRS resource subset may be two 2-port SRS resources. In other words, a 3-port SRS resource in an SRS resource subset may be implemented based on two 2-port SRS resources.

[0267] In some embodiments, an SRS resource subset may include one 1-port SRS resource and one 2-port SRS resource. In this case, the resource configuration of a 3-port SRS resource in an SRS resource subset may be one 1-port SRS resource and one 2-port SRS resource. In other words, a 3-port SRS resource in an SRS resource subset may be implemented based on one 1-port SRS resource and one 2-port SRS resource.

[0268] In some embodiments, an SRS resource subset may include one 4-port SRS resource. In this case, the resource configuration of a 3-port SRS resource in an SRS resource subset may be one 4-port SRS resource. In other words, a 3-port SRS resource in an SRS resource subset may be implemented based on one 4-port SRS resource.

[0269] In some embodiments, an SRS resource subset may include one 8-port SRS resource. In this case, the resource configuration of a 3-port SRS resource in an SRS resource subset may be one 8-port SRS resource. In other words, the 3-port SRS resource in an SRS resource subset may be implemented based on one 8-port SRS resource.

[0270] In some embodiments, the two SRS resource subsets in the SRS resource set may use the same resource combination. In other words, the resource combinations corresponding to the 3-port SRS resources in the two SRS resource subsets may be the same. In one example, both SRS resource subsets may include one 3-port SRS resource. In one example, both SRS resource subsets may include one 1-port SRS resource and one 2-port SRS resource. In some embodiments, the two SRS resource subsets may use different resource combinations. In other words, the resource combinations corresponding to the 3-port SRS resources in the two SRS resource subsets may be different. In one example, of the two SRS resource subsets, one SRS resource subset may include one 1-port SRS resource and one 2-port SRS resource, while the other SRS resource subset may include two 2-port SRS resources.

[0271] In some embodiments, the time domain resources corresponding to different SRS resource subsets in the SRS resource set may not overlap. That is, in the SRS resource set, the symbols occupied by different SRS resource subsets in the time domain may be completely different. For example, among the two SRS resource subsets in the SRS resource set, one SRS resource subset may occupy the 2nd and 3rd symbols of the 6 available symbols, and the other SRS resource subset may occupy the 4th and 5th symbols of the 6 available symbols. For example, among the two SRS resource subsets in the SRS resource set, one SRS resource subset may occupy the 3rd symbol of the 6 available symbols, and the other SRS resource subset may occupy the 4th symbol of the 6 available symbols.

[0272] In some embodiments, the time domain resources corresponding to different SRS resources in a resource combination of an SRS resource subset may be the same or non-overlapping. In some embodiments, the time domain resources corresponding to different SRS resources in a resource combination may be the same. In some embodiments, in a resource combination of an SRS resource subset, different SRS resources may occupy the same number of symbols and the same symbols. For example, the resource combination of an SRS resource subset may include three 1-port SRS resources, each of which may occupy the third symbol of the six available symbols. For example, the resource combination of an SRS resource subset may include two 2-port SRS resources, each of which may occupy the third and fourth symbols of the six available symbols. In some embodiments, the time domain resources corresponding to different SRS resources in a resource combination may not overlap. In other words, the time domain resources corresponding to different SRS resources may be completely different. In some embodiments, in a resource combination of an SRS resource subset, different SRS resources may occupy the same number of symbols and the same symbols. For example, the resource combination of an SRS resource subset may include three 1-port SRS resources, and the three 1-port SRS resources may occupy the third, fourth, and fifth symbols of the six available symbols, respectively. In some embodiments, in the resource combination of an SRS resource subset, different SRS resources may occupy different numbers of symbols, and the occupied symbols may be completely different. For example, the resource combination of an SRS resource subset may include one 1-port SRS resource and one 2-port SRS resource, and the 1-port SRS resource may occupy the third symbol of the six available symbols, and the 2-port SRS resource may occupy the fifth and sixth symbols of the six available symbols.

[0273] In some embodiments, different SRS resource subsets may correspond to completely different symbols, and different SRS resources within a single SRS resource subset may correspond to the same symbol. For example, within an SRS resource set, one SRS resource subset may comprise three 1-port SRS resources, while another SRS resource subset may comprise two 2-port SRS resources. Each 1-port SRS resource may occupy the fourth of the six available symbols. Each 2-port SRS resource may occupy the fifth and sixth of the six available symbols.

[0274] In some embodiments, different SRS resource subsets may correspond to completely different symbols, and different SRS resources within an SRS resource subset may correspond to completely different symbols. For example, within an SRS resource set, the resource combination of one SRS resource subset may be one 1-port SRS resource and one 2-port SRS resource, while the resource combination of another SRS resource subset may be one 4-port SRS resource. The 1-port SRS resource may occupy the 4th symbol of the 6 available symbols. The 2-port SRS resource may occupy the 5th and 6th symbols of the 6 available symbols. The 4-port SRS resource may occupy the 2nd and 3rd symbols of the 6 available symbols.

[0275] In some embodiments, the number of SRS resource sets may be at least one, and each SRS resource set may include a 3-port SRS resource. An SRS resource set may include a resource configuration, thereby implementing a 3-port SRS resource.

[0276] In some embodiments, the information element corresponding to the SRS resource set may include identification information of the SRS resource. In one example, the SRS-ResourceSet information element may include the SRS-ResourceIDList information element. The SRS-ResourceIDList information element may include identification information of the SRS resources in the SRS resource set. In some embodiments, the identification information of the SRS resource may include at least one of the following: an index number of the SRS resource, or an identifier of the SRS resource.

[0277] In some embodiments, the first information element may be associated with an SRS resource set. In some embodiments, the first information element may be set in an information element for the SRS resource set. In one example, the first information element may be set in an information element corresponding to the SRS resource set. For example, the first information element may be set in an SRS-ResourceSet information element.

[0278] In some embodiments, the second information element may be associated with one of the following: an SRS resource set, an SRS resource in the SRS resource set. In some embodiments, the second information element may be set in an information element for the SRS resource set. In one example, the second information element may be set in an information element corresponding to the SRS resource set. For example, the second information element may be set in an SRS-ResourceSet information element. In some embodiments, the second information element may be set in an information element for the SRS resource. In one example, the second information element may be set in an information element corresponding to the SRS resource. For example, the second information element may be set in an SRS-Resource information element.

[0279] In some embodiments, the third information element may be associated with one of the following: an SRS resource set, an SRS resource in an SRS resource set. In some embodiments, the third information element may be set in an information element for an SRS resource set. In one example, the third information element may be set in an information element corresponding to an SRS resource set. For example, the third information element may be set in an SRS-ResourceSet information element. In some embodiments, the third information element may be set in an information element for an SRS resource. In one example, the third information element may be set in an information element corresponding to an SRS resource. For example, the third information element may be set in an SRS-Resource information element.

[0280] In some embodiments, the fifth information element may be associated with one of the following: an SRS resource set, an SRS resource in an SRS resource set. In some embodiments, the fifth information element may be set in an information element for an SRS resource set. In one example, the fifth information element may be set in an information element corresponding to an SRS resource set. For example, the fifth information element may be set in an SRS-ResourceSet information element. In some embodiments, the fifth information element may be set in an information element for an SRS resource. In one example, the fifth information element may be set in an information element corresponding to an SRS resource. For example, the fifth information element may be set in an SRS-Resource information element.

[0281] In some embodiments, different SRS resource sets may correspond to different beam directions. That is, different 3-port SRS resources in different SRS resource sets may correspond to different beam directions. In some embodiments, the fifth information element associated with different SRS resource sets may have different values, thereby configuring different beam directions for different SRS resource sets.

[0282] In some embodiments, the number of SRS resource sets may be 1 or 2. It is understood that in some cases, the number of SRS resource subsets in an SRS resource set may be greater than 2, which is not specifically limited in the embodiments of the present disclosure.

[0283] In some embodiments, an SRS resource set may include one 1-port SRS resource. In this case, the resource configuration of the 3-port SRS resource in one SRS resource set may be one 1-port SRS resource. In other words, the 3-port SRS resource in one SRS resource set may be implemented based on one 1-port SRS resource.

[0284] In some embodiments, an SRS resource set may include one 2-port SRS resource. In this case, the resource configuration of a 3-port SRS resource in an SRS resource set may be one 2-port SRS resource. In other words, the 3-port SRS resource in an SRS resource set may be implemented based on one 2-port SRS resource.

[0285] In some embodiments, an SRS resource set may include one 3-port SRS resource. In this case, the resource configuration of the 3-port SRS resource in one SRS resource set may be one 3-port SRS resource. In other words, the 3-port SRS resource in one SRS resource set may be implemented based on one 3-port SRS resource.

[0286] In some embodiments, an SRS resource set may include two 2-port SRS resources. In this case, the resource configuration of a 3-port SRS resource in an SRS resource set may be two 2-port SRS resources. In other words, a 3-port SRS resource in an SRS resource set may be implemented based on two 2-port SRS resources.

[0287] In some embodiments, an SRS resource set may include one 1-port SRS resource and one 2-port SRS resource. In this case, the resource configuration of a 3-port SRS resource in an SRS resource set may be one 1-port SRS resource and one 2-port SRS resource. In other words, the 3-port SRS resource in an SRS resource set may be implemented based on one 1-port SRS resource and one 2-port SRS resource.

[0288] In some embodiments, an SRS resource set may include one 4-port SRS resource. In this case, the resource configuration of a 3-port SRS resource in one SRS resource set may be one 4-port SRS resource. In other words, the 3-port SRS resource in one SRS resource set may be implemented based on one 4-port SRS resource.

[0289] In some embodiments, an SRS resource set may include one 8-port SRS resource. In this case, the resource configuration of a 3-port SRS resource in one SRS resource set may be one 8-port SRS resource. In other words, the 3-port SRS resource in one SRS resource set may be implemented based on one 8-port SRS resource.

[0290] In some embodiments, the two SRS resource sets may use the same resource combination. In other words, the resource combinations corresponding to the 3-port SRS resources in the two SRS resource sets may be the same. In one example, both SRS resource sets may include one 3-port SRS resource. In one example, both SRS resource sets may include one 1-port SRS resource and one 2-port SRS resource. In some embodiments, the two SRS resource sets may use different resource combinations. In other words, the resource combinations corresponding to the 3-port SRS resources in the two SRS resource sets may be different. In one example, of the two SRS resource sets, one SRS resource set may include one 1-port SRS resource and one 2-port SRS resource, while the other SRS resource set may include two 2-port SRS resources.

[0291] In some embodiments, the time domain resources corresponding to different SRS resource sets may not overlap. That is, the symbols occupied by different SRS resource sets in the time domain may be completely different. For example, among two SRS resource sets, one SRS resource set may occupy the second and third symbols of the six available symbols, and the other SRS resource set may occupy the fourth and fifth symbols of the six available symbols. For example, among two SRS resource sets, one SRS resource set may occupy the third symbol of the six available symbols, and the other SRS resource set may occupy the fourth symbol of the six available symbols.

[0292] In some embodiments, the time domain resources corresponding to different SRS resources in a resource combination of an SRS resource set may be the same or non-overlapping. In some embodiments, the time domain resources corresponding to different SRS resources in a resource combination may be the same. In some embodiments, in a resource combination of an SRS resource set, different SRS resources may occupy the same number of symbols and the same symbols. For example, the resource combination of an SRS resource set may include three 1-port SRS resources, each of which may occupy the third symbol of the six available symbols. For example, the resource combination of an SRS resource set may include two 2-port SRS resources, each of which may occupy the third and fourth symbols of the six available symbols. In some embodiments, the time domain resources corresponding to different SRS resources in a resource combination may not overlap. That is, the time domain resources corresponding to different SRS resources may be completely different. In some embodiments, in a resource combination of an SRS resource set, different SRS resources may occupy the same number of symbols and may occupy different symbols. For example, the resource combination of an SRS resource set may include three 1-port SRS resources, and the three 1-port SRS resources may occupy the third, fourth, and fifth symbols of the six available symbols, respectively. In some embodiments, in a resource combination of an SRS resource set, different SRS resources may occupy different numbers of symbols and different occupied symbols. For example, the resource combination of an SRS resource set may include one 1-port SRS resource and one 2-port SRS resource, and the 1-port SRS resource may occupy the third symbol of the six available symbols, and the 2-port SRS resource may occupy the fifth and sixth symbols of the six available symbols.

[0293] In some embodiments, different SRS resource sets may correspond to completely different symbols, and different SRS resources within a single SRS resource set may correspond to the same symbol. For example, one SRS resource set may have three 1-port SRS resources, while another SRS resource set may have two 2-port SRS resources. Each 1-port SRS resource may occupy the fourth of the six available symbols. Each 2-port SRS resource may occupy the fifth and sixth of the six available symbols.

[0294] In some embodiments, different SRS resource sets may correspond to completely different symbols, and different SRS resources within a single SRS resource set may correspond to completely different symbols. For example, within a single SRS resource set, the resource combination of one SRS resource set may be one 1-port SRS resource and one 2-port SRS resource, while the resource combination of another SRS resource set may be one 4-port SRS resource. The 1-port SRS resource may occupy the 4th symbol of the 6 available symbols. The 2-port SRS resource may occupy the 5th and 6th symbols of the 6 available symbols. The 4-port SRS resource may occupy the 2nd and 3rd symbols of the 6 available symbols.

[0295] In step S303 , the terminal 101 sends an SRS to the network device 102 .

[0296] In some embodiments, terminal 101 may send SRS via a configured 3-port SRS resource.

[0297] In some embodiments, the SRS may be transmitted via three transmit antennas of the terminal 101. The three transmit antennas may correspond to three SRS ports of a three-port SRS resource.

[0298] In some embodiments, network device 102 may receive an SRS.

[0299] In some embodiments, SRS may be transmitted in 1 or 2 beam directions.

[0300] In some embodiments, the number of configured 3-port SRS resources may be 1. In one example, one SRS resource subset may be configured, and the SRS resource subset may be configured with one 3-port SRS resource. In another example, one SRS resource set may be configured, and the SRS resource set may include one 3-port SRS resource. In this case, the SRS may be transmitted in the beam direction corresponding to the 3-port SRS resource.

[0301] In some embodiments, the number of configured 3-port SRS resources may be two. In one example, two SRS resource subsets may be configured, each of which may be configured with one 3-port SRS resource. In another example, two SRS resource sets may be configured, each of which includes one 3-port SRS resource. In this case, the two 3-port SRS resources may correspond to different beam directions. SRS may be transmitted in different beam directions.

[0302] In step S304 , the network device 102 sends second information to the terminal 101 .

[0303] In some embodiments, terminal 101 may receive second information.

[0304] In some embodiments, the second information may be used to indicate the first SRS resource.

[0305] In some embodiments, the name of the second information is not limited, and it can be, for example, resource indication information, resource scheduling information, SRS resource indication information, etc.

[0306] In some embodiments, the second information may be carried in downlink control information (DCI) signaling.

[0307] In some embodiments, the DCI signaling may be carried in a physical downlink control channel (PDCCH).

[0308] In some embodiments, the second information may include a fourth information element.

[0309] In some embodiments, the fourth information element may be used to indicate the first SRS resource.

[0310] In some embodiments, the fourth information element may be used to indicate a first SRS resource used for PUSCH transmission based on a codebook, where the first resource is a 3-port SRS resource in an SRS resource set.

[0311] In some embodiments, the fourth information element may be an SRS resource indication.

[0312] In some embodiments, the fourth information element may be an SRI (SRS resource indicator) information element.

[0313] In some embodiments, the first SRS resource may be a 3-port SRS resource corresponding to 1 SRS resource subset.

[0314] In some embodiments, the SRS resource set may include one SRS resource subset. The SRS resource subset may include one 3-port SRS resource. In this case, the number of 3-port SRS resources configured in step S302 may be 1. The number of bits in the fourth information element may be 0. In other words, the fourth information element may be omitted. In one example, the second information may indicate the 3-port SRS resource of the SRS resource subset by default.

[0315] In some embodiments, the SRS resource set may include 2 SRS resource subsets. Each SRS resource subset may include 1 3-port SRS resource. In this case, the number of 3-port SRS resources configured in step S302 may be 2. The number of bits of the fourth information element may be 1. Different values ​​of the fourth information element may be used to indicate 3-port SRS resources in different SRS resource subsets. In one example, if the value of the fourth information element is "0", it may indicate a 3-port SRS resource in the first SRS resource subset; if the value of the fourth information element is "1", it may indicate a 3-port SRS resource in the second SRS resource subset. In one example, if the value of the fourth information element is "1", it may indicate a 3-port SRS resource in the first SRS resource subset; if the value of the fourth information element is "0", it may indicate a 3-port SRS resource in the second SRS resource subset.

[0316] In some embodiments, the first SRS resource may be a 3-port SRS resource corresponding to 1 SRS resource set.

[0317] In some embodiments, the number of SRS resource sets may be 1. The SRS resource set may include one 3-port SRS resource. In this case, the number of 3-port SRS resources configured in step S302 may be 1. The number of bits in the fourth information element may be 0. In other words, the fourth information element may be omitted. In one example, the second information may indicate the 3-port SRS resource of the SRS resource set by default.

[0318] In some embodiments, the number of SRS resource sets may be 2. Each SRS resource set may include 1 3-port SRS resource. In this case, the number of 3-port SRS resources configured in step S302 may be 2. The number of bits of the fourth information element may be 1. Different values ​​of the fourth information element may be used to indicate 3-port SRS resources in different SRS resource sets. In one example, if the value of the fourth information element is "0", it may indicate a 3-port SRS resource in the first SRS resource set; if the value of the fourth information element is "1", it may indicate a 3-port SRS resource in the second SRS resource set. In one example, if the value of the fourth information element is "1", it may indicate a 3-port SRS resource in the first SRS resource set; if the value of the fourth information element is "0", it may indicate a 3-port SRS resource in the second SRS resource set.

[0319] In some embodiments, the network device 102 may obtain uplink CSI based on the SRS sent by the terminal 101 through the three SRS ports.

[0320] In some embodiments, the uplink CSI may be used to indicate the status of an uplink channel.

[0321] In some embodiments, the network device 102 may evaluate the quality of uplink channels corresponding to the three SRS ports of the three-port SRS resource based on the CSI, and determine the first resource according to the evaluation result.

[0322] In some embodiments, the first resource may be a 3-port SRS resource associated with an uplink channel with the best quality in the SRS resource set.

[0323] In some embodiments, CSI is used for codebook-based PUSCH transmission. Specifically, CSI can be used to determine 3-port SRS resources for codebook-based PUSCH transmission.

[0324] In step S305 , the terminal 101 sends a PUSCH to the network device 102 .

[0325] In some embodiments, network device 102 may receive the PUSCH.

[0326] In some embodiments, the terminal 101 may perform codebook-based PUSCH transmission using the first SRS resource specified by the second information.

[0327] In some embodiments, the terminal 101 may perform codebook-based PUSCH transmission through the SRS port corresponding to the first SRS resource.

[0328] In some embodiments, the terminal 101 may perform codebook-based PUSCH transmission through the antenna port corresponding to the first SRS resource.

[0329] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0330] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" may be used interchangeably. For example, a codebook may be a collection of one or more codewords / precoding matrices.

[0331] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0332] In some embodiments, the terms "DCI", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0333] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" may be used interchangeably, and terms such as "PUSCH" and "UL data" may be used interchangeably.

[0334] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0335] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0336] In some embodiments, terms such as "resource block (RB)", "physical resource block (PRB)", "sub-carrier group (SCG)", "resource element group (REG)", "PRB pair", "RB pair", "resource element (RE)", and "sub-carrier" can be used interchangeably.

[0337] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) state", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", "panel" and the like can be used interchangeably.

[0338] In some embodiments, terms such as "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "symbol", and "transmission time interval (TTI)" can be used interchangeably.

[0339] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0340] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0341] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "some", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "some A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, some A, any A, or first A, etc., but not limited to this.

[0342] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0343] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0344] The communication method according to the embodiments of the present disclosure may include at least one of steps S301 to S305. For example, step S302 may be implemented as an independent embodiment, step S304 may be implemented as an independent embodiment, and a combination of steps S302 and S304 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0345] In some embodiments, steps S301 , S303 , S304 , and S305 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0346] In some embodiments, steps S301 , S302 , S303 , and S305 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0347] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0348] FIG4 is an exemplary flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , an embodiment of the present disclosure relates to a communication method. The communication method includes steps S401 to S405.

[0349] In step S401, capability information is sent.

[0350] The optional implementation of step S401 can refer to the optional implementation of step S301 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0351] In some embodiments, the terminal 101 may send capability information to the network device 102, but is not limited thereto and may also send capability information to other entities.

[0352] In some embodiments, the capability information can be used by the network device 102 to configure an SRS resource set. Optional implementations thereof can be found in the optional implementations of step S302 in FIG. 3 and other related parts of the embodiments involved in FIG. 3 , which will not be described in detail here.

[0353] In step S402, first information is obtained.

[0354] The optional implementation of step S402 can refer to the optional implementation of step S302 in FIG. 3 and other related parts in the embodiment involved in FIG. 3 , which will not be described in detail here.

[0355] In some embodiments, the terminal 101 may receive the first information sent by the network device 102, but is not limited thereto and may also receive the first information sent by other entities.

[0356] In some embodiments, terminal 101 may obtain the first information from a higher layer.

[0357] In some embodiments, the first information may be determinable by the network device 102 based on the capability information.

[0358] In step S403, an SRS is sent.

[0359] The optional implementation of step S403 can refer to the optional implementation of step S303 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0360] In some embodiments, the terminal 101 may send an SRS to the network device 102 , but is not limited thereto and may also send capability information to other entities.

[0361] In some embodiments, SRS may be used by the network device 102 to determine the first SRS resource. Optional implementations thereof may refer to the optional implementations of step S304 in FIG. 3 and other related parts of the embodiments involved in FIG. 3 , which will not be described in detail here.

[0362] In step S404, the second information is obtained.

[0363] Optional implementations of step S404 can refer to the optional implementations of step S304 in FIG. 3 and other related parts in the embodiment involved in FIG. 3 , which will not be described in detail here.

[0364] In some embodiments, the terminal 101 may receive the second information sent by the network device 102, but is not limited thereto and may also receive the first information sent by other entities.

[0365] In some embodiments, terminal 101 may obtain the second information from a higher layer.

[0366] In some embodiments, the second information may be something that network device 102 may determine based on the SRS.

[0367] In step S405, a PUSCH is transmitted.

[0368] The optional implementation of step S405 can refer to the optional implementation of step S305 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0369] In some embodiments, the terminal 101 may send a PUSCH to the network device 102, but is not limited thereto and may also send capability information to other entities.

[0370] The communication method according to the embodiment of the present disclosure may include at least one of steps S401 to S405. For example, step S402 may be implemented as an independent embodiment, step S404 may be implemented as an independent embodiment, and a combination of steps S402 and S404 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0371] In some embodiments, steps S401 , S403 , S404 , and S405 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0372] In some embodiments, steps S401 , S402 , S403 , and S405 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0373] FIG5 is an exemplary flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , an embodiment of the present disclosure relates to a communication method. The communication method includes steps S501 to S505.

[0374] In step S501, capability information is acquired.

[0375] The optional implementation of step S501 can refer to the optional implementation of step S301 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0376] In some embodiments, the network device 102 may receive capability information sent by the terminal 101, but is not limited thereto and may also receive capability information sent by other entities.

[0377] In some embodiments, network device 102 may obtain capability information specified by the protocol.

[0378] In some embodiments, network device 102 may obtain capability information from higher layers.

[0379] In some embodiments, the network device 102 may perform processing to obtain the capability information.

[0380] In some embodiments, step S510 may be omitted, and the network device 102 may autonomously implement the functions indicated by the capability information, or the above functions may be default or by default.

[0381] In step S502, first information is sent.

[0382] The optional implementation of step S502 can refer to the optional implementation of step S302 in FIG. 3 and other related parts in the embodiment involved in FIG. 3 , which will not be described in detail here.

[0383] In some embodiments, the network device 102 may send the first information to the terminal 101, but is not limited thereto and may also send capability information to other entities.

[0384] In some embodiments, the first information can be used by the terminal 101 to send SRS through the SRS port corresponding to the SRS resource set. Its optional implementation method can refer to the optional implementation method of step S303 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0385] In step S503, the SRS is acquired.

[0386] The optional implementation of step S503 can refer to the optional implementation of step S303 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0387] In some embodiments, the network device 102 may receive an SRS sent by the terminal 101 , but is not limited thereto and may also receive an SRS sent by other entities.

[0388] In step S504, the second information is sent.

[0389] For optional implementations of step S504, reference may be made to the optional implementations of step S304 in FIG. 3 and other related parts in the embodiment involved in FIG. 3 , which will not be described in detail here.

[0390] In some embodiments, the network device 102 may send the second information to the terminal 101 , but is not limited thereto and may also send the second information to other entities.

[0391] In some embodiments, the second information can be used by the terminal 101 to send PUSCH through the SRS port corresponding to the first SRS resource. Its optional implementation method can refer to the optional implementation method of step S304 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0392] In step S505, PUSCH is acquired.

[0393] For optional implementations of step S505, reference may be made to the optional implementations of step S305 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0394] In some embodiments, the network device 102 may receive a PUSCH sent by the terminal 101, but is not limited thereto and may also receive a PUSCH sent by other entities.

[0395] The communication method according to the embodiments of the present disclosure may include at least one of steps S501 to S505. For example, step S502 may be implemented as an independent embodiment, step S504 may be implemented as an independent embodiment, and a combination of steps S502 and S504 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0396] In some embodiments, steps S501 , S503 , S504 , and S505 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0397] In some embodiments, steps S501 , S502 , S503 , and S505 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0398] Figure 6 is an exemplary interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 6, an embodiment of the present disclosure relates to a communication method. The communication method includes step S601.

[0399] In step S601 , the network device 102 sends first information to the terminal 101 .

[0400] The optional implementation of step S601 can refer to the optional implementation of step S302 in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0401] In some embodiments, the above method may include the method described in the above embodiments on the terminal side, network device side, etc., which will not be repeated here.

[0402] Hereinafter, the embodiments of the present disclosure are exemplarily described through specific implementation methods.

[0403] In some embodiments, support can be added in, The number of supported SRS ports. The higher-layer signaling nrofSRS-Ports can be configured with 3 more ports.

[0404] In some embodiments, a 3-port SRS resource subset or an equivalent 3-port SRS resource can be one of the following configurations (i.e., resource combinations): one 1- or 2-port SRS resource; three single-port SRS resources; two 2-port SRS resources; one single-port SRS resource and one 2-port SRS resource; one 4-port SRS resource; or one 8-port SRS resource.

[0405] In one scenario, an SRS resource set with a codebook function can be configured, and SRS resource subsets can be defined at the same time. An equivalent 3-port SRS resource is configured as an SRS resource subset. A maximum of 2 SRS resource subsets can be configured in an SRS resource set, and different SRS resource subsets can correspond to different space-related information.

[0406] In some embodiments, the codebook function parameter configuration of the SRS resource set may be configured in an SRS resource subset, and the function parameter configurations of multiple SRS resource subsets may be the same; or they may be configured in the SRS resource set.

[0407] In some embodiments, the type parameter configuration of the SRS resource set may include periodic, semi-persistent, and non-periodic configuration types. The types of different SRS resource subsets may be the same; they may also be configured in the SRS resource set.

[0408] In some embodiments, the SRS resource set may have other parameter configurations, such as a period and a starting position under period configuration.

[0409] In some embodiments, the SRS resource subset may allow different SRS resources within the SRS resource subset to be transmitted on the same symbol at the same time, and different SRS resource subsets to be transmitted on different symbols.

[0410] In some embodiments, the SRI indication (ie, the second information) method may be: the SRI indicates an SRS resource subset. SRS It can be the number of SRS resource subsets. Specifically, the SRI indication can refer to the following Table 1:

[0411] Table 1: SRI indication or second SRI indication for codebook-based PUSCH transmission

[0412] In one scenario, an SRS resource set with a codebook function can be configured, and SRS resource subsets can be defined at the same time. An equivalent 3-port SRS resource is configured as an SRS resource subset. A maximum of 2 SRS resource subsets can be configured in an SRS resource set, and different SRS resource subsets correspond to different space-related information.

[0413] In some embodiments, all SRS resources within an SRS resource set are transmitted on different symbols.

[0414] In some embodiments, the SRI indication method may be: SRI indicates an SRS resource subset. SRS It can be the number of SRS resource subsets.

[0415] In one scenario, a maximum of two SRS resource sets functioning as codebooks may be configured, and a maximum of one equivalent three-port SRS resource may be configured in one SRS resource set as one SRS resource. Different SRS resource sets may correspond to different space-related information.

[0416] In some embodiments, all SRS resources in an SRS resource set are allowed to be transmitted simultaneously on the same symbol, and SRS resources corresponding to different SRS resource sets are transmitted on different symbols.

[0417] In some embodiments, the codebook function parameter configuration of the SRS resource set may be configured in an equivalent 3-port SRS resource, and the function parameter configurations of multiple equivalent SRS resources may be the same; or they may be configured in the SRS resource set.

[0418] In some embodiments, the type parameter configuration of the SRS resource set may include periodic, semi-persistent, and aperiodic configuration types, and different equivalent 3-port SRS resource types are the same; they may also be configured in the SRS resource set.

[0419] In some embodiments, the SRS resource set may have other parameter configurations, such as a period and a starting position under period configuration.

[0420] In some embodiments, the SRI indication method may be: SRI indicates an SRS resource set. SRS It can be the number of SRS resource subsets. Specifically, the SRI indication can refer to the following Table 2:

[0421] Table 2: SRI indication or second SRI indication for codebook-based PUSCH transmission

[0422] In one scenario, a maximum of two SRS resource sets with codebook functions may be configured, and a maximum of one equivalent three-port SRS resource may be configured in one SRS resource set as one SRS resource. Different SRS resource sets correspond to different space-related information.

[0423] In some embodiments, different SRS resources within the same SRS resource set can only be transmitted on different symbols, and SRS resources corresponding to different resource sets are sent at different time domain positions.

[0424] In some embodiments, the SRI indication method may be: SRI indicates an SRS resource subset. SRS It can be the number of SRS resource subsets.

[0425] In some embodiments, the above solution may be configured by the base station based on UE capabilities (ie, first information).

[0426] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0427] The embodiments of the present disclosure also provide a communication device for implementing any of the above methods. For example, the embodiments of the present disclosure also provide another communication device, including units or modules for implementing each step performed by a terminal in any of the above methods. For example, the embodiments of the present disclosure also provide another communication device, including units or modules for implementing each step performed by a network device in any of the above methods.

[0428] It should be understood that the division of the various units or modules in the above devices is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above devices, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0429] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit, a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by a dedicated integrated circuit or a programmable logic device, such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0430] Figure 7A is an exemplary structural diagram of a terminal provided according to an embodiment of the present disclosure. As shown in Figure 7A, the terminal 101 may include a transceiver module 7101. In some embodiments, the transceiver module 7101 may be configured to receive first information, wherein the first information is used to configure an SRS resource set, the function of the SRS resource set is a codebook, the SRS resource set includes a 3-port SRS resource, the 3-port SRS resource is used to obtain uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH transmission based on the codebook. In some embodiments, the transceiver module 7101 may be configured to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 101 in any of the above methods (for example, steps S301, S302, S303, S304, S305), which will not be repeated here.

[0431] Figure 7B is an exemplary structural diagram of a terminal provided according to an embodiment of the present disclosure. As shown in Figure 7B, the network device 102 may include a transceiver module 7201. In some embodiments, the transceiver module 7201 may be configured to send first information, wherein the first information is used to configure an SRS resource set, the function of the SRS resource set is a codebook, the SRS resource set includes a 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH transmission based on the codebook. In some embodiments, the transceiver module 7201 may be configured to perform at least one of the communication steps such as sending and / or receiving performed by the network device 102 in any of the above methods (for example, steps S301, S302, S303, S304, S305), which will not be repeated here.

[0432] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module. The transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0433] Figure 8A is a schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), or a terminal (e.g., a user device, etc.), or a chip, chip system, or processor that supports a network device to implement any of the above methods, or a chip, chip system, or processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0434] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0435] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps of sending and / or receiving in the above method (for example, steps S301, S302, S303, S304, and S305, but not limited thereto). In an optional embodiment, the transceiver 8102 may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0436] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memories 8103 and may be configured to receive data from the memories 8103 or other devices, or to send data to the memories 8103 or other devices. For example, the interface circuits 8104 may read data stored in the memories 8103 and send the data to the processor 8101.

[0437] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0438] FIG8B is a schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present invention is not limited thereto.

[0439] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0440] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0441] In some embodiments, the interface circuit 8202 performs at least one of the communication steps of sending and / or receiving in the above method (e.g., steps S301, S302, S303, S304, and S305, but not limited thereto). The interface circuit 8202 performing the communication steps of sending and / or receiving in the above method, for example, means that the interface circuit 8202 performs data exchange between the processor 8201, the chip 8200, the memory 8203, or the transceiver device.

[0442] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0443] The embodiments of the present disclosure further provide a storage medium having instructions stored thereon. When the instructions are executed on the communication device 8100, the communication device 8100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0444] The embodiment of the present disclosure further provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0445] The embodiments of the present disclosure further provide a computer program, which, when executed on a computer, enables the computer to execute any of the above methods.

[0446] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0447] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A communication method, performed by a network device, wherein, The method includes: Sending first information to a terminal, where the terminal is a 3-transmit-antenna terminal, the first information is used to configure a sounding reference signal (SRS) resource set, the function of the SRS resource set is a codebook, the SRS resource set includes 3-port SRS resources, and the 3-port SRS resources are used to obtain uplink channel state information (CSI) through 3 SRS ports, and the uplink CSI is used for physical uplink shared channel (PUSCH) transmission based on the codebook.

2. The method according to claim 1, wherein, The 3-port SRS resources are implemented based on one of the following SRS resource combinations: 1 1-port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2 2-port SRS resources; 1 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

3. The method according to claim 1 or 2, wherein The SRS resource set includes at least one SRS resource subset, and each SRS resource subset corresponds to a 3-port SRS resource; Wherein, in the SRS resource set, the first configurations of different SRS resource subsets are different, and the first configuration includes at least one of the following: spatial correlation information, transmission configuration information (TCI) state.

4. The method according to claim 3, wherein, Different SRS resource subsets include the same SRS resource combination.

5. The method according to claim 3 or 4, wherein The number of the at least one SRS resource subset is less than or equal to 2.

6. The method according to any one of claims 3 to 5, wherein In the SRS resource set, the time-domain resources corresponding to different SRS resource subsets do not overlap with each other.

7. The method according to any one of claims 3 to 6, wherein In the SRS resource combination of each SRS resource subset, the number of symbols occupied by different SRS resources is the same, and the symbols occupied are the same or completely different.

8. The method according to any one of claims 3 to 7, wherein The first information includes a first cell, and the first cell is used to configure the number of SRS ports to be 3; Wherein, the first cell is associated with at least one of the following: the SRS resource set, the at least one resource subset.

9. The method according to any one of claims 3 to 8, wherein The first information includes a second cell, and the second cell is used to configure the function as a codebook; Wherein, the second cell is associated with at least one of the following: the SRS resource set, the at least one SRS resource subset, the SRS resources in each SRS resource subset.

10. The method according to any one of claims 3 to 9, wherein, The first information includes a third cell, and the third cell is used to configure a first resource type; Wherein, the third cell is associated with at least one of the following: the SRS resource set, the at least one SRS resource subset, the SRS resources in each SRS resource subset.

11. The method according to claim 1 or 2, wherein, The number of the SRS resource sets is at least one, and each SRS resource set corresponds to a 3-port SRS resource; Wherein, the first configurations of different SRS resource sets are different, and the first configuration includes at least one of the following: spatial correlation information, TCI state.

12. The method according to claim 11, wherein, Different SRS resource sets include the same SRS resource combination.

13. The method according to claim 11 or 12, wherein, The number of the SRS resource sets is less than or equal to 2.

14. The method according to any one of claims 11 to 13, wherein, In the SRS resource set, the time-domain resources corresponding to different SRS resource sets do not overlap with each other.

15. The method according to any one of claims 11 to 14, wherein In the SRS resource combination of each SRS resource set, the number of symbols occupied by different SRS resources is the same, and the symbols occupied are the same or completely different.

16. The method according to any one of claims 11 to 15, wherein, The first information includes a first cell, and the first cell is used to configure the number of SRS ports to be 3; Among them, the first cell is associated with the SRS resource set.

17. The method according to any one of claims 11 to 16, wherein The first information includes a second cell, and the second cell is used to configure the function as a codebook; Among them, the second cell is associated with at least one of the following: the SRS resource set, the SRS resources in each SRS resource set SRS resources.

18. The method according to any one of claims 11 to 17, wherein, The first information includes a third cell, and the third cell is used to indicate a first resource type; Among them, the third cell is associated with at least one of the following: the SRS resource set, the SRS resources in each SRS resource set.

19. The method according to any one of claims 1 to 18, wherein The method further includes: Sending second information to the terminal, where the second information is used to indicate a first SRS resource, and the first SRS resource is used for PUSCH transmission based on a codebook, and the first SRS resource is a 3-port SRS resource in the SRS resource set.

20. The method according to claim 19, wherein The first SRS resource corresponds to an SRS resource subset.

21. The method according to claim 20, wherein, The second information includes a fourth cell, and the fourth cell is used to indicate the SRS resource subset corresponding to the first SRS resource.

22. The method according to claim 21, wherein, When the number of SRS resource subsets is 1, the number of bits of the fourth cell is 0.

23. The method according to claim 21, wherein, When the number of SRS resource subsets is 2, the number of bits of the fourth cell is 1; Among them, the 2 SRS resource subsets are respectively indicated by the value 0 and the value 1 of the fourth cell.

24. The method according to claim 23, wherein, The 2 SRS resource subsets include a first SRS resource subset and a second SRS resource subset; Among them, the value 0 is used to indicate the first SRS resource subset, and the value 1 is used to indicate the second SRS resource subset; or, the value 1 is used to indicate the first SRS resource subset, and the value 0 is used to indicate the second SRS resource subset.

25. The method according to claim 19, wherein The first SRS resource corresponds to an SRS resource set.

26. The method according to claim 25, wherein, The second information includes a fourth cell, and the fourth cell is used to indicate the first SRS resource.

27. The method according to claim 26, wherein, When the number of SRS resource sets is 1, the number of bits of the fourth cell is 0.

28. The method according to claim 26, wherein, When the number of SRS resource sets is 2, the number of bits of the fourth cell is 1; Among them, the 2 SRS resource sets are respectively indicated by the value 0 and the value 1 of the fourth cell.

29. The method according to claim 28, wherein, The 2 SRS resource sets include a first SRS resource set and a second SRS resource set; Among them, the value 0 is used to indicate the first SRS resource set, and the value 1 is used to indicate the second SRS resource set; or, the value 1 is used to indicate the first SRS resource set, and the value 0 is used to indicate the second SRS resource set.

30. A communication method, executed by a terminal, wherein, The terminal is a 3-transmit antenna terminal, and the method includes: Receive the first information sent by a network device, where the first information is used to configure a sounding reference signal (SRS) resource set, the function of the SRS resource set is a codebook, the SRS resource set includes 3-port SRS resources, and the 3-port SRS resources are used to obtain uplink channel state information (CSI) through 3 SRS ports, and the uplink CSI is used for physical uplink shared channel (PUSCH) transmission based on the codebook.

31. The method according to claim 30, wherein, The 3-port SRS resources are implemented based on one of the following SRS resource combinations: 1 one-port SRS resource; 1 two-port SRS resource; 3 one-port SRS resources; 2 two-port SRS resources; 1 one-port SRS resource and 1 two-port SRS resource; 1 four-port SRS resource; 1 eight-port SRS resource.

32. The method according to claim 30 or 31, wherein, The SRS resource set includes at least one SRS resource subset, and each SRS resource subset corresponds to a 3-port SRS resource; Among them, in the SRS resource set, the first configurations of different SRS resource subsets are different, and the first configuration includes at least one of the following: spatial correlation information, transmission configuration information (TCI) state.

33. The method according to claim 32, wherein, Different SRS resource subsets include the same SRS resource combination.

34. The method according to claim 32 or 33, wherein, The number of the at least one SRS resource subset is less than or equal to 2.

35. The method according to any one of claims 32 to 34, wherein, In the SRS resource set, the time-domain resources corresponding to different SRS resource subsets do not overlap with each other.

36. The method according to any one of claims 32 to 35, wherein, In the SRS resource combination of each SRS resource subset, the number of symbols occupied by different SRS resources is the same, and the symbols occupied are the same or completely different.

37. The method according to any one of claims 32 to 36, wherein The first information includes a first cell, and the first cell is used to configure the number of SRS ports to be 3; Among them, the first cell is associated with at least one of the following: the SRS resource set, the at least one resource subset.

38. The method according to any one of claims 32 to 37, wherein The first information includes a second cell, and the second cell is used to configure the function as a codebook; Among them, the second cell is associated with at least one of the following: the SRS resource set, the at least one SRS resource subset, the SRS resources in each SRS resource subset.

39. The method according to any one of claims 32 to 38, wherein, The first information includes a third cell, and the third cell is used to configure a first resource type; Among them, the third cell is associated with at least one of the following: the SRS resource set, the at least one SRS resource subset, the SRS resources in each SRS resource subset.

40. The method according to claim 30 or 31, wherein, The number of the SRS resource sets is at least one, and each SRS resource set corresponds to a 3-port SRS resource; Among them, the first configurations of different SRS resource sets are different, and the first configuration includes at least one of the following: spatial correlation information, TCI state.

41. The method according to claim 40, wherein, Different SRS resource sets include the same SRS resource combination.

42. The method according to claim 40 or 41, wherein, The number of the SRS resource sets is less than or equal to 2.

43. The method according to any one of claims 40 to 42, wherein In the SRS resource sets, the time-domain resources corresponding to different SRS resource sets do not overlap with each other.

44. The method according to any one of claims 40 to 43, wherein, In the SRS resource combination of each SRS resource set, the number of symbols occupied by different SRS resources is the same, and the symbols occupied are the same or completely different.

45. The method according to any one of claims 40 to 44, wherein, The first information includes a first cell, and the first cell is used to configure the number of SRS ports to be 3; Wherein, the first cell is associated with the SRS resource set.

46. The method according to any one of claims 40 to 45, wherein The first information includes a second cell, and the second cell is used to configure the function as a codebook; Wherein, the second cell is associated with at least one of the following: the SRS resource set, the SRS resources in each SRS resource set.

47. The method according to any one of claims 40 to 46, wherein The first information includes a third cell, and the third cell is used to indicate a first resource type; Wherein, the third cell is associated with at least one of the following: the SRS resource set, the SRS resources in each SRS resource set.

48. The method according to any one of claims 30 to 47, wherein The method further includes: Receiving second information sent by the network device, wherein the second information is used to indicate a first SRS resource, the first SRS resource is used for PUSCH transmission based on a codebook, and the first SRS resource is a 3-port SRS resource in the SRS resource set.

49. The method according to claim 48, wherein, The first SRS resource corresponds to an SRS resource subset.

50. The method according to claim 49, wherein, The second information includes a fourth cell, and the fourth cell is used to indicate the SRS resource subset corresponding to the first SRS resource.

51. The method according to claim 50, wherein, When the number of SRS resource subsets is 1, the number of bits of the fourth cell is 0.

52. The method according to claim 50, wherein, When the number of SRS resource subsets is 2, the number of bits of the fourth cell is 1; Wherein, the 2 SRS resource subsets are respectively indicated by the value 0 and the value 1 of the fourth cell.

53. The method according to claim 52, wherein, The 2 SRS resource subsets include a first SRS resource subset and a second SRS resource subset; Wherein, the value 0 is used to indicate the first SRS resource subset, and the value 1 is used to indicate the second SRS resource subset; or, the value 1 is used to indicate the first SRS resource subset, and the value 0 is used to indicate the second SRS resource subset.

54. The method according to claim 48, wherein, The first SRS resource corresponds to an SRS resource set.

55. The method according to claim 54, wherein, The second information includes a fourth cell, and the fourth cell is used to indicate the first SRS resource.

56. The method according to claim 55, wherein, When the number of SRS resource sets is 1, the number of bits of the fourth cell is 0.

57. The method according to claim 55, wherein, When the number of SRS resource sets is 2, the number of bits of the fourth cell is 1; Wherein, the 2 SRS resource sets are respectively indicated by the value 0 and the value 1 of the fourth cell.

58. The method according to claim 57, wherein, The 2 SRS resource sets include a first SRS resource set and a second SRS resource set; Wherein, the value 0 is used to indicate the first SRS resource set, and the value 1 is used to indicate the second SRS resource set; or, the value 1 is used to indicate the first SRS resource set, and the value 0 is used to indicate the second SRS resource set.

59. A network device, comprising: A transceiver module, configured to send a first message to a terminal, where the terminal is a 3-transmit-antenna terminal, the first message is used to configure a sounding reference signal (SRS) resource set, the function of the SRS resource set is a codebook, the SRS resource set includes 3-port SRS resources, and the 3-port SRS resources are used to obtain uplink channel state information (CSI) through 3 SRS ports, and the uplink CSI is used for physical uplink shared channel (PUSCH) transmission based on the codebook.

60. A terminal, comprising: A transceiver module, configured to receive a first message sent by a network device, where the terminal is a 3-transmit-antenna terminal, the first message is used to configure a sounding reference signal (SRS) resource set, the function of the SRS resource set is a codebook, the SRS resource set includes 3-port SRS resources, and the 3-port SRS resources are used to obtain uplink channel state information (CSI) through 3 SRS ports, and the uplink CSI is used for physical uplink shared channel (PUSCH) transmission based on the codebook.

61. A network device, comprising: At least one processor; A memory storing instructions; Wherein, when the instructions are executed by the network device, the network device implements the communication method according to any one of claims 1 to 29.

62. A terminal, comprising: At least one processor; A memory storing instructions; Wherein, when the instructions are executed by the terminal, the terminal implements the communication method according to any one of claims 30 to 58.

63. A communication system, comprising: A network device, configured to implement the communication method according to any one of claims 1 to 29; A terminal, configured to implement the communication method according to any one of claims 30 to 58.

64. A storage medium storing instructions, wherein, When the instructions run on a communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 58.

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