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

Abstract

Provided in the embodiments of the present disclosure are a communication method, a terminal, a network device, a communication system, and a storage medium. The communication method comprises: receiving first information transmitted by a network device, wherein the first information is used for configuring an SRS resource set, the SRS resource set functions as a codebook, the SRS resource set comprises at least one 3-port SRS resource, the 3-port SRS resource is used for acquiring uplink CSI by means of three SRS ports, the CSI is used for codebook-based PUSCH transmission, the 3-port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3. By means of the embodiments of the present disclosure, a terminal having three transmission antennas can transmit an SRS by means of 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.

[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 the first aspect of an embodiment of the present disclosure, a communication method is provided. The communication method can be executed by a terminal. The terminal is a 3-transmitting antenna terminal. The above method includes: receiving first information sent by a network device, wherein the first information is used to configure an SRS resource set, the function of the SRS resource set is a code book, and the SRS resource set includes at least one 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink channel state information (CSI) through 3 SRS ports, and the CSI is used for code book-based physical uplink shared channel (PUSCH) transmission; wherein the 3-port SRS resource is determined by the first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

[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 network device. The above method includes: sending first information to a terminal, wherein the terminal is a 3-transmitting antenna terminal, 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 at least one 3-port SRS resource, the 3-port SRS resource is used to obtain uplink CSI through 3 SRS ports, and the CSI is used for PUSCH transmission based on the codebook; wherein the 3-port SRS resource is determined by the first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

[0007] According to a third 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 terminal with three transmitting antennas, the first information is used to configure an SRS resource set, the SRS resource set functions as a codebook, the SRS resource set includes at least one 3-port SRS resource, the 3-port SRS resource is used to obtain uplink CSI through three SRS ports, and the CSI is used for PUSCH transmission based on the codebook; wherein the 3-port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

[0008] According to a fourth 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 transmitting antennas, the first information is used to configure an SRS resource set, the SRS resource set functions as a codebook, the SRS resource set includes at least one 3-port SRS resource, the 3-port SRS resource is used to obtain uplink CSI through three SRS ports, and the CSI is used for PUSCH transmission based on the codebook; wherein the 3-port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

[0009] According to a fifth 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 first aspect.

[0010] According to a sixth 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 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 terminal is configured to execute the communication method described in the first aspect. The network device 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 a 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] The 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, an embodiment of the present disclosure provides a communication method. The communication method can be performed by a terminal. The terminal is a 3-transmitting 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 at least one 3-port SRS resource, the 3-port SRS resource is used to obtain uplink CSI through 3 SRS ports, and the CSI is used for PUSCH transmission based on the codebook; wherein the 3-port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

[0031] According to an embodiment of the present application, an SRS resource set with a codebook function can be configured for a terminal through first information. The SRS resource set can include a first SRS resource with a number of SRS ports greater than 3. A 3-port SRS resource can be implemented based on the first SRS resource. In this way, a 3-port SRS resource can be configured for a terminal with 3 transmit antennas, enabling the terminal with 3 transmit antennas to transmit SRS through 3 SRS ports.

[0032] In combination with some embodiments of the first aspect, in some embodiments, when there are more than one 3-port SRS resource, different 3-port SRS resources correspond to different spatial directions.

[0033] In combination with some embodiments of the first aspect, in some embodiments, the spatial direction may be associated with at least one of the following: spatial related information; or a transmission configuration indicator (TCI) state.

[0034] According to an embodiment of the present application, a spatial direction can be configured for a 3-port SRS resource using at least one of spatial related information and TCI status. In this way, different 3-port SRS resources in an SRS resource set can be configured to correspond to different spatial directions.

[0035] In combination with some embodiments of the first aspect, in some embodiments, the first SRS resource may include one of the following: a 4-port SRS resource; or an 8-port SRS resource.

[0036] According to embodiments of the present application, a 3-port SRS resource can be implemented based on a 4-port SRS resource or an 8-port SRS resource. Because both 4-port SRS and 8-port SRS resources have more than three SRS ports, only one 4-port SRS resource or one 8-port SRS resource is needed to implement a 3-port SRS resource. Furthermore, because the 4-port SRS or 8-port SRS resources already have clear definitions, structures, and parameters, 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.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the first information may include a first information element. The first information element may be used to configure the number of SRS ports to 3. The first information element may be associated with an SRS resource set.

[0038] According to an embodiment of the present application, the first information element is associated with an SRS resource set and is used to configure the number of SRS ports to 3. Then, for each SRS resource in the SRS resource set, the configuration of the number of SRS ports to 3 is effective, regardless of whether the SRS resource is a 4-port SRS resource or an 8-port SRS resource. This not only ensures the consistency of each SRS resource in the SRS resource set, but also reduces the information load.

[0039] In combination with some embodiments of the first aspect, in some embodiments, the three SRS ports of the three-port SRS resource may belong to the SRS ports of the first SRS resource.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the three SRS ports of the three-port SRS resource may be determined by at least one of the following methods: predefinition; signaling configuration.

[0041] According to the embodiment of the present application, the three SRS ports of the three-port SRS resource can be determined in a predefined manner or based on signaling configuration, thereby improving the flexibility of SRS port configuration and expanding the scope of application.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the first SRS resource may be a 4-port SRS resource, and the 3 SRS ports of the 3-port SRS resource may correspond to 3 SRS ports of the 4 SRS ports of the 4-port SRS resource.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port among the 4 SRS ports of the 4-port SRS resource, wherein the first port is 1 port among the 4 SRS resources of the 4-port SRS resource, and the remaining 3 SRS ports among the 4 SRS ports of the 4-port SRS resource serve as the 3 SRS ports of the 3-port SRS resource; selecting 3 SRS ports from the 4 SRS ports of the 4-port SRS resource as the 3 SRS ports of the 3-port SRS resource.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, the four SRS ports of a four-port SRS resource may have different index values. In a predefined manner, the first port may include one of the following: an SRS port corresponding to the four-port SRS resource with the smallest index value; or an SRS port corresponding to the four-port SRS resource with the largest index value.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the index values ​​of the three SRS ports of a 3-port SRS resource may be {0, 1, 2}, respectively, and the index values ​​of the four SRS ports of a 4-port SRS resource may be {0, 1, 2, 3}, respectively. The correspondence between the three SRS ports of the 3-port SRS resource and the SRS ports of the 4-port SRS resource may include one of the following: the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {1, 2, 3} of the 4-port SRS resource; the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 4-port SRS resource.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the first SRS resource can be an 8-port SRS resource, the 8-port SRS resource can be a non-time division multiplexing TDM allocation type, and the 3 SRS ports of the 3-port SRS resource can correspond to 3 SRS ports of the 8 SRS ports of the 8-port SRS resource.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port among the 8 SRS ports of the 8-port SRS resource, wherein the first port is 5 SRS ports among the 8 SRS ports of the 8-port SRS resource, and the remaining 3 SRS ports among the 8 SRS ports of the 8-port SRS resource are used as the 3 SRS ports of the 3-port SRS resource; selecting 3 SRS ports from the 8 SRS ports of the 8-port SRS resource as the 3 SRS ports of the 3-port SRS resource.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the eight SRS ports of an eight-port SRS resource may have different index values. In a predefined manner, the first port may include one of the following: the five SRS ports corresponding to the eight-port SRS resource with the smallest index value; or the five SRS ports corresponding to the eight-port SRS resource with the largest index value.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the index values ​​of the three SRS ports of the 3-port SRS resource can be {0, 1, 2} respectively, and the index values ​​of the eight SRS ports of the 8-port SRS resource can be {0, 1, 2, 3, 4, 5, 6, 7} respectively. The correspondence between the three SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource can include one of the following: the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, the first SRS resource may be an 8-port SRS resource, the 8-port SRS resource may be a TDM allocation type, the first SRS resource may include a first group of SRS ports and a second group of SRS ports, the first group of SRS ports including 4 SRS ports, and the second group of SRS ports including 4 SRS ports. The 3-port SRS resource may include one of the following: 3 SRS ports in the first group of SRS ports; 3 SRS ports in the first group of SRS ports; 2 SRS ports in the first group of SRS ports and 1 SRS port in the second group of SRS ports; 1 SRS port in the first group of SRS ports and 2 SRS ports in the second group of SRS ports.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port from the first group of SRS ports and the second group of SRS ports, wherein the first port is the 5 SRS ports in the first group of SRS ports and the second group of SRS ports, and the remaining 3 SRS ports in the first group of SRS ports and the second group of SRS ports serve as the 3 SRS ports of the 3-port SRS resource; selecting 3 SRS ports from the first group of SRS ports and the second group of SRS ports as the 3 SRS ports of the 3-port SRS resource.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the index values ​​of the 3 SRS ports of the 3-port SRS resource can be {0, 1, 2} respectively, the index values ​​of the 4 SRS ports in the first group of SRS ports can be {0, 1, 4, 5} respectively, and the index values ​​of the 4 SRS ports in the second group of SRS ports can be {2, 3, 6, 7} respectively. The correspondence between the 3 SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource may include one of the following: the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 2, 3} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {4, 6, 7} of the 8-port SRS resource.

[0053] In combination with some embodiments of the first aspect, in some embodiments, in the signaling configuration mode, the first port can be configured through at least one of the following modes: indication information; bitmap.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the three SRS ports of the 3-port SRS resource may be used to transmit SRS with the same transmit power.

[0055] According to an embodiment of the present application, while three SRS resources in the first SRS resource are used as SRS ports of the three-port SRS resource, the other SRS ports of the first SRS resource are removed. After the other SRS ports are removed, it is still possible to ensure that SRS is transmitted at the same power on the three SRS ports.

[0056] In a second aspect, an embodiment of the present disclosure provides a communication method. 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 SRS resource set functions as a codebook, the SRS resource set includes at least one 3-port SRS resource, the 3-port SRS resource is used to obtain uplink CSI through three SRS ports, and the CSI is used for PUSCH transmission based on the codebook; wherein the 3-port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

[0057] According to an embodiment of the present application, the network device can configure an SRS resource set with a codebook function for the terminal by sending the first information. The SRS resource set may include a first SRS resource with an SRS port number greater than 3. A 3-port SRS resource can be implemented based on the first SRS resource. In this way, a 3-port SRS resource can be configured for a terminal with 3 transmit antennas, so that the terminal with 3 transmit antennas can send SRS through 3 SRS ports. In this way, the network device can obtain the uplink CSI of the 3 SRS ports of the terminal, perform channel assessment based on the CSI, and ultimately determine the 3-port SRS resource for codebook-based PUSCH transmission.

[0058] In combination with some embodiments of the second aspect, in some embodiments, when there are more than one 3-port SRS resource, different 3-port SRS resources correspond to different spatial directions.

[0059] In combination with some embodiments of the second aspect, in some embodiments, the spatial direction can be associated with at least one of the following: spatial related information; TCI status.

[0060] In combination with some embodiments of the second aspect, in some embodiments, the first SRS resource may include one of the following: a 4-port SRS resource; or an 8-port SRS resource.

[0061] In conjunction with some embodiments of the second aspect, in some embodiments, the first information may include a first information element. The first information element may be used to configure the number of SRS ports to 3. The first information element may be associated with an SRS resource set.

[0062] In combination with some embodiments of the second aspect, in some embodiments, the three SRS ports of the three-port SRS resource may belong to the SRS ports of the first SRS resource.

[0063] In combination with some embodiments of the second aspect, in some embodiments, the three SRS ports of the three-port SRS resource may be determined by at least one of the following methods: predefinition; signaling configuration.

[0064] In combination with some embodiments of the second aspect, in some embodiments, the first SRS resource may be a 4-port SRS resource, and the 3 SRS ports of the 3-port SRS resource may correspond to 3 SRS ports of the 4 SRS ports of the 4-port SRS resource.

[0065] In combination with some embodiments of the second aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port among the 4 SRS ports of the 4-port SRS resource, wherein the first port is 1 port among the 4 SRS ports of the 4-port SRS resource, and the remaining 3 ports among the 4 SRS ports of the 4-port SRS resource serve as the 3 SRS ports of the 3-port SRS resource; selecting 3 SRS ports from the 4 SRS ports of the 4-port SRS resource as the 3 SRS ports of the 3-port SRS resource.

[0066] In conjunction with some embodiments of the second aspect, in some embodiments, the four SRS ports of a four-port SRS resource may have different index values. In a predefined manner, the first port may include one of the following: an SRS port with the smallest index value corresponding to the four-port SRS resource; or an SRS port with the largest index value corresponding to the four-port SRS resource.

[0067] In conjunction with some embodiments of the second aspect, in some embodiments, the index values ​​of the three SRS ports of a 3-port SRS resource may be {0, 1, 2}, respectively, and the index values ​​of the four SRS ports of a 4-port SRS resource may be {0, 1, 2, 3}, respectively. The correspondence between the three SRS ports of the 3-port SRS resource and the SRS ports of the 4-port SRS resource may include one of the following: the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {1, 2, 3} of the 4-port SRS resource; the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 4-port SRS resource.

[0068] In combination with some embodiments of the second aspect, in some embodiments, the first SRS resource can be an 8-port SRS resource, the 8-port SRS resource can be a non-time division multiplexing TDM allocation type, and the 3 SRS ports of the 3-port SRS resource can correspond to 3 SRS ports of the 8 SRS ports of the 8-port SRS resource.

[0069] In combination with some embodiments of the second aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port among the 8 SRS ports of the 8-port SRS resource, wherein the first port is 5 SRS ports among the 8 SRS ports of the 8-port SRS resource, and the remaining 3 SRS ports among the 8 SRS ports of the 8-port SRS resource are used as the 3 SRS ports of the 3-port SRS resource; sending 3 SRS ports from the 8 SRS ports of the 8-port SRS resource as the 3 SRS ports of the 3-port SRS resource.

[0070] In conjunction with some embodiments of the second aspect, in some embodiments, the eight SRS ports of the eight-port SRS resource may have different index values. In a predefined manner, the first port may include one of the following: the five SRS ports corresponding to the eight-port SRS resource with the smallest index value; or the five SRS ports corresponding to the eight-port SRS resource with the largest index value.

[0071] In conjunction with some embodiments of the second aspect, in some embodiments, the index values ​​of the three SRS ports of the 3-port SRS resource can be {0, 1, 2} respectively, and the index values ​​of the eight SRS ports of the 8-port SRS resource can be {0, 1, 2, 3, 4, 5, 6, 7} respectively. The correspondence between the three SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource can include one of the following: the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource.

[0072] In conjunction with some embodiments of the second aspect, in some embodiments, the first SRS resource may be an 8-port SRS resource, the 8-port SRS resource may be of a TDM allocation type, the first SRS resource may include a first group of SRS ports and a second group of SRS ports, the first group of SRS ports including 4 SRS ports, and the second group of SRS ports including 4 SRS ports. The 3-port SRS resource may include one of the following: 3 SRS ports in the first group of SRS ports; 3 SRS ports in the first group of SRS ports; 2 SRS ports in the first group of SRS ports and 1 SRS port in the second group of SRS ports; 1 SRS port in the first group of SRS ports and 2 SRS ports in the second group of SRS ports.

[0073] In combination with some embodiments of the second aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port from the first group of SRS ports and the second group of SRS ports, wherein the first port is the 5 SRS ports in the first group of SRS ports and the second group of SRS ports, and the remaining 3 SRS ports in the first group of SRS ports and the second group of SRS ports serve as the 3 SRS ports of the 3-port SRS resource; selecting 3 SRS ports from the first group of SRS ports and the second group of SRS ports as the 3 SRS ports of the 3-port SRS resource.

[0074] In combination with some embodiments of the second aspect, in some embodiments, the index values ​​of the 3 SRS ports of the 3-port SRS resource can be {0, 1, 2} respectively, the index values ​​of the 4 SRS ports in the first group of SRS ports can be {0, 1, 4, 5} respectively, and the index values ​​of the 4 SRS ports in the second group of SRS ports can be {2, 3, 6, 7} respectively. The correspondence between the 3 SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource may include one of the following: the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 2, 3} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {4, 6, 7} of the 8-port SRS resource.

[0075] In combination with some embodiments of the second aspect, in some embodiments, in the signaling configuration mode, the first port can be configured through at least one of the following modes: indication information; bitmap.

[0076] In combination with some embodiments of the second aspect, in some embodiments, the three SRS ports of the 3-port SRS resource may be used to transmit SRS with the same transmit power.

[0077] In a third 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 at least one three-port SRS resource, wherein the three-port SRS resource is used to obtain uplink CSI through three SRS ports, and the CSI is used for PUSCH transmission based on the codebook; wherein the three-port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than three.

[0078] In conjunction with some embodiments of the third aspect, in some embodiments, when there are more than one 3-port SRS resource, different 3-port SRS resources correspond to different spatial directions.

[0079] In combination with some embodiments of the third aspect, in some embodiments, the spatial direction can be associated with at least one of the following: spatial related information; TCI status.

[0080] In combination with some embodiments of the third aspect, in some embodiments, the first SRS resource may include one of the following: a 4-port SRS resource; or an 8-port SRS resource.

[0081] In conjunction with some embodiments of the third aspect, in some embodiments, the first information may include a first information element. The first information element may be used to configure the number of SRS ports to 3. The first information element may be associated with an SRS resource set.

[0082] In conjunction with some embodiments of the third aspect, in some embodiments, the three SRS ports of the three-port SRS resource may belong to the SRS ports of the first SRS resource.

[0083] In combination with some embodiments of the third aspect, in some embodiments, the three SRS ports of the three-port SRS resource may be determined by at least one of the following methods: predefinition; signaling configuration.

[0084] In combination with some embodiments of the third aspect, in some embodiments, the first SRS resource may be a 4-port SRS resource, and the 3 SRS ports of the 3-port SRS resource may correspond to 3 SRS ports of the 4 SRS ports of the 4-port SRS resource.

[0085] In combination with some embodiments of the third aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port among the 4 SRS ports of the 4-port SRS resource, wherein the first port is 1 port among the 4 SRS ports of the 4-port SRS resource, and the remaining 3 SRS ports among the 4 SRS ports of the 4-port SRS resource serve as the 3 SRS ports of the 3-port SRS resource; selecting 3 SRS ports from the 4 SRS ports of the 4-port SRS resource as the 3 SRS ports of the 3-port SRS resource.

[0086] In conjunction with some embodiments of the third aspect, in some embodiments, the four SRS ports of a four-port SRS resource may have different index values. In a predefined manner, the first port may include one of the following: the SRS port corresponding to the four-port SRS resource with the smallest index value; or the SRS port corresponding to the four-port SRS resource with the largest index value.

[0087] In conjunction with some embodiments of the third aspect, in some embodiments, the index values ​​of the three SRS ports of a 3-port SRS resource may be {0, 1, 2}, respectively, and the index values ​​of the four SRS ports of a 4-port SRS resource may be {0, 1, 2, 3}, respectively. The correspondence between the three SRS ports of the 3-port SRS resource and the SRS ports of the 4-port SRS resource may include one of the following: the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {1, 2, 3} of the 4-port SRS resource; the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 4-port SRS resource.

[0088] In combination with some embodiments of the third aspect, in some embodiments, the first SRS resource can be an 8-port SRS resource, the 8-port SRS resource can be a non-time division multiplexing TDM allocation type, and the 3 SRS ports of the 3-port SRS resource can correspond to 3 SRS ports of the 8 SRS ports of the 8-port SRS resource.

[0089] In combination with some embodiments of the third aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port among the 8 SRS ports of the 8-port SRS resource, wherein the first port is 5 SRS ports among the 8 SRS ports of the 8-port SRS resource, and the remaining 3 SRS ports among the 8 SRS ports of the 8-port SRS resource are used as the 3 SRS ports of the 3-port SRS resource; selecting and sending 3 SRS ports from the 8 SRS ports of the 8-port SRS resource as the 3 SRS ports of the 3-port SRS resource.

[0090] In conjunction with some embodiments of the third aspect, in some embodiments, the eight SRS ports of an eight-port SRS resource may have different index values. In a predefined manner, the first port may include one of the following: the five SRS ports corresponding to the eight-port SRS resource with the smallest index value; or the five SRS ports corresponding to the eight-port SRS resource with the largest index value.

[0091] In conjunction with some embodiments of the third aspect, in some embodiments, the index values ​​of the three SRS ports of the 3-port SRS resource can be {0, 1, 2} respectively, and the index values ​​of the eight SRS ports of the 8-port SRS resource can be {0, 1, 2, 3, 4, 5, 6, 7} respectively. The correspondence between the three SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource can include one of the following: the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource.

[0092] In conjunction with some embodiments of the third aspect, in some embodiments, the first SRS resource may be an 8-port SRS resource, the 8-port SRS resource may be a TDM allocation type, the first SRS resource may include a first group of SRS ports and a second group of SRS ports, the first group of SRS ports including 4 SRS ports, and the second group of SRS ports including 4 SRS ports. The 3-port SRS resource may include one of the following: 3 SRS ports in the first group of SRS ports; 3 SRS ports in the first group of SRS ports; 2 SRS ports in the first group of SRS ports and 1 SRS port in the second group of SRS ports; 1 SRS port in the first group of SRS ports and 2 SRS ports in the second group of SRS ports.

[0093] In combination with some embodiments of the third aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port from the first group of SRS ports and the second group of SRS ports, wherein the first port includes 5 SRS ports from the first group of SRS ports and the second group of SRS ports, and the remaining 3 SRS ports from the first group of SRS ports and the second group of SRS ports serve as the 3 SRS ports of the 3-port SRS resource; selecting 3 SRS ports from the first group of SRS ports and the second group of SRS ports as the 3 SRS ports of the 3-port SRS resource.

[0094] In combination with some embodiments of the third aspect, in some embodiments, the index values ​​of the 3 SRS ports of the 3-port SRS resource can be {0, 1, 2} respectively, the index values ​​of the 4 SRS ports in the first group of SRS ports can be {0, 1, 4, 5} respectively, and the index values ​​of the 4 SRS ports in the second group of SRS ports can be {2, 3, 6, 7} respectively. The correspondence between the 3 SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource may include one of the following: the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 2, 3} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {4, 6, 7} of the 8-port SRS resource.

[0095] In combination with some embodiments of the third aspect, in some embodiments, in the signaling configuration mode, the first port can be configured through at least one of the following modes: indication information; bitmap.

[0096] In conjunction with some embodiments of the third aspect, in some embodiments, the three SRS ports of the 3-port SRS resource may be used to transmit SRS with the same transmit power.

[0097] In a fourth 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, wherein the terminal is a terminal with three transmitting 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 at least one 3-port SRS resource, wherein the 3-port SRS resource is used to obtain uplink CSI through three SRS ports, and the CSI is used for PUSCH transmission based on the codebook; wherein the 3-port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

[0098] In combination with some embodiments of the fourth aspect, in some embodiments, when there are more than one 3-port SRS resource, different 3-port SRS resources correspond to different spatial directions.

[0099] In combination with some embodiments of the fourth aspect, in some embodiments, the spatial direction can be associated with at least one of the following: spatial related information; TCI status.

[0100] In combination with some embodiments of the fourth aspect, in some embodiments, the first SRS resource may include one of the following: a 4-port SRS resource; or an 8-port SRS resource.

[0101] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information may include a first information element. The first information element may be used to configure the number of SRS ports to 3. The first information element may be associated with an SRS resource set.

[0102] In conjunction with some embodiments of the fourth aspect, in some embodiments, the three SRS ports of the three-port SRS resource may belong to the SRS ports of the first SRS resource.

[0103] In combination with some embodiments of the fourth aspect, in some embodiments, the three SRS ports of the three-port SRS resource may be determined by at least one of the following methods: predefinition; signaling configuration.

[0104] In combination with some embodiments of the fourth aspect, in some embodiments, the first SRS resource may be a 4-port SRS resource, and the 3 SRS ports of the 3-port SRS resource may correspond to 3 SRS ports of the 4 SRS ports of the 4-port SRS resource.

[0105] In combination with some embodiments of the fourth aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port among the 4 SRS ports of the 4-port SRS resource, wherein the first port is 1 port among the 4 SRS ports of the 4-port SRS resource, and the remaining 3 ports among the 4 SRS ports of the 4-port SRS resource serve as the 3 SRS ports of the 3-port SRS resource; selecting and sending 3 SRS ports from the 4 SRS ports of the 4-port SRS resource as the 3 SRS ports of the 3-port SRS resource.

[0106] In conjunction with some embodiments of the fourth aspect, in some embodiments, the four SRS ports of a four-port SRS resource may have different index values. In a predefined manner, the first port may include one of the following: an SRS port with the smallest index value corresponding to the four-port SRS resource; or an SRS port with the largest index value corresponding to the four-port SRS resource.

[0107] In conjunction with some embodiments of the fourth aspect, in some embodiments, the index values ​​of the three SRS ports of a 3-port SRS resource may be {0, 1, 2}, respectively, and the index values ​​of the four SRS ports of a 4-port SRS resource may be {0, 1, 2, 3}, respectively. The correspondence between the three SRS ports of the 3-port SRS resource and the SRS ports of the 4-port SRS resource may include one of the following: the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {1, 2, 3} of the 4-port SRS resource; the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 4-port SRS resource.

[0108] In combination with some embodiments of the fourth aspect, in some embodiments, the first SRS resource can be an 8-port SRS resource, the 8-port SRS resource can be a non-time division multiplexing TDM allocation type, and the 3 SRS ports of the 3-port SRS resource can correspond to 3 SRS ports of the 8 SRS ports of the 8-port SRS resource.

[0109] In combination with some embodiments of the fourth aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port among the 8 SRS ports of the 8-port SRS resource, wherein the first port is 5 SRS ports among the 8 SRS ports of the 8-port SRS resource, and the remaining 3 SRS ports among the 8 SRS ports of the 8-port SRS resource are used as the 3 SRS ports of the 3-port SRS resource; selecting and sending 3 SRS ports from the 8 SRS ports of the 8-port SRS resource as the 3 SRS ports of the 3-port SRS resource.

[0110] In conjunction with some embodiments of the fourth aspect, in some embodiments, the eight SRS ports of the eight-port SRS resource may have different index values. In a predefined manner, the first port may include one of the following: the five SRS ports corresponding to the eight-port SRS resource with the smallest index value; or the five SRS ports corresponding to the eight-port SRS resource with the largest index value.

[0111] In conjunction with some embodiments of the fourth aspect, in some embodiments, the index values ​​of the three SRS ports of the 3-port SRS resource can be {0, 1, 2} respectively, and the index values ​​of the eight SRS ports of the 8-port SRS resource can be {0, 1, 2, 3, 4, 5, 6, 7} respectively. The correspondence between the three SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource can include one of the following: the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; the three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource.

[0112] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first SRS resource may be an 8-port SRS resource, the 8-port SRS resource may be a TDM allocation type, the first SRS resource may include a first group of SRS ports and a second group of SRS ports, the first group of SRS ports including 4 SRS ports, and the second group of SRS ports including 4 SRS ports. The 3-port SRS resource may include one of the following: 3 SRS ports in the first group of SRS ports; 3 SRS ports in the first group of SRS ports; 2 SRS ports in the first group of SRS ports and 1 SRS port in the second group of SRS ports; 1 SRS port in the first group of SRS ports and 2 SRS ports in the second group of SRS ports.

[0113] In combination with some embodiments of the fourth aspect, in some embodiments, the 3 SRS ports of the 3-port SRS resource can be determined by one of the following methods: removing the first port from the first group of SRS ports and the second group of SRS ports, wherein the first port is the 5 SRS ports in the first group of SRS ports and the second group of SRS ports, and the remaining 3 SRS ports in the first group of SRS ports and the second group of SRS ports serve as the 3 SRS ports of the 3-port SRS resource; selecting 3 SRS ports from the first group of SRS ports and the second group of SRS ports as the 3 SRS ports of the 3-port SRS resource.

[0114] In combination with some embodiments of the fourth aspect, in some embodiments, the index values ​​of the 3 SRS ports of the 3-port SRS resource can be {0, 1, 2} respectively, the index values ​​of the 4 SRS ports in the first group of SRS ports can be {0, 1, 4, 5} respectively, and the index values ​​of the 4 SRS ports in the second group of SRS ports can be {2, 3, 6, 7} respectively. The correspondence between the 3 SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource may include one of the following: the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 2, 3} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; the 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {4, 6, 7} of the 8-port SRS resource.

[0115] In combination with some embodiments of the fourth aspect, in some embodiments, in the signaling configuration mode, the first port can be configured through at least one of the following modes: indication information; bitmap.

[0116] In combination with some embodiments of the fourth aspect, in some embodiments, the three SRS ports of the 3-port SRS resource may be used to transmit SRS with the same transmit power.

[0117] In a fifth 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 first aspect and possible implementations thereof.

[0118] In a sixth aspect, an embodiment of the present disclosure provides 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 second aspect and possible implementations thereof.

[0119] In a seventh aspect, embodiments of the present disclosure provide a communication system. The communication system includes a terminal and a network device. The terminal is configured to perform the communication method described in any one of the first aspect and possible implementations thereof. The network device is configured to perform the communication method described in any one of the second aspect and possible implementations thereof.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] In the embodiments of the present disclosure, “plurality” refers to two or more than two.

[0130] In some embodiments, the terms "at least one", "one or more", etc. can be used interchangeably.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0139] 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.

[0140] 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.

[0141] 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 with terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced with side channels, and uplinks, downlinks, etc. can be replaced with side links.

[0142] 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.

[0143] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0144] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0145] 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.

[0146] 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 .

[0147] 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.

[0148] 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.

[0149] 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.

[0150] 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.

[0151] 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.

[0152] 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.

[0153] 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.

[0154] 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).

[0155] 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.

[0156] 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.

[0157] 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.

[0158] 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.

[0159] 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.

[0160] 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.

[0161] 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.

[0162] 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.

[0163] 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.

[0164] FIG3 is an exemplary interaction diagram of a communication method 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.

[0165] In step S301 , the terminal 101 sends capability information to the network device 102 .

[0166] In some embodiments, network device 102 may receive capability information.

[0167] In some embodiments, the capability information may be used to indicate the capability of the terminal 101 .

[0168] In some embodiments, the capability information may be used to indicate functions supported by the terminal 101 .

[0169] 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.

[0170] In some embodiments, capability information may be carried in a ueCapabilityInformation information element (IE).

[0171] In some embodiments, the capability information may include at least one of the following: SRS resource parameters, and port parameters of a transmitting antenna. It is understood that the capability information may also include other parameters, which are not specifically limited in the embodiments of the present disclosure.

[0172] In some embodiments, the SRS resource parameter may be used to indicate parameters of the terminal 101 related to the SRS resource.

[0173] In some embodiments, the SRS resource parameters may be carried in the featuresSetsUplink information element.

[0174] 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.

[0175] In some embodiments, the port parameters of the transmitting antenna may be carried in the srs-TxSwitch information element.

[0176] In some embodiments, the capability information may be carried in upper layer signaling, for example, signaling in a radio resource control (RRC) process.

[0177] 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.

[0178] In some embodiments, network device 102 may not receive capability information.

[0179] In some embodiments, network device 102 may not expect to receive capability information.

[0180] In step S302 , the network device 102 sends first information to the terminal 101 .

[0181] In some embodiments, terminal 101 may receive first information.

[0182] In some embodiments, the first information may be used to configure an SRS resource set. The SRS resource set includes at least one 3-port SRS resource.

[0183] In some embodiments, the first information may be used to indicate the configuration of the SRS resource set to the terminal 101 .

[0184] 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.

[0185] In some embodiments, the first information may be carried in an SRS-Config information element.

[0186] In some embodiments, the first information may be carried in higher-layer signaling, for example, signaling in an RRC process.

[0187] In some embodiments, the number of SRS resource sets may be equal to 1. The SRS resource set may include at least one 3-port SRS resource.

[0188] In some embodiments, an SRS resource set can function as a codebook. That is, a three-port SRS resource in an SRS resource set can obtain uplink channel state information (CSI) via the three SRS ports. In some embodiments, CSI can be used for codebook-based PUSCH transmission. In other words, CSI can be used for codebook-based PUSCH transmission.

[0189] In some embodiments, a 3-port SRS resource may be implemented based on the first SRS resource.

[0190] In some embodiments, the number of SRS ports of the first SRS resource may be greater than 3.

[0191] In some embodiments, the first SRS resource may be a 4-port SRS resource. The number of SRS ports of the 4-port SRS resource may be 4.

[0192] In some embodiments, the four SRS ports of a 4-port SRS resource may have different index values. In one example, the index values ​​of the four SRS ports of a 4-port SRS resource may be {0, 1, 2, 3}, respectively. In another example, the index values ​​of the four SRS ports of a 4-port SRS resource may be {1, 2, 3, 4}, respectively. It is understood that the index values ​​of the four SRS ports of a 4-port SRS resource may also have other values, and the present disclosure does not specifically limit this.

[0193] In some embodiments, the first SRS resource may be an 8-port SRS resource. The number of SRS ports of the 8-port SRS resource may be 8.

[0194] In some embodiments, the eight SRS ports of an 8-port SRS resource may have different index values. In one example, the index values ​​of the eight SRS ports of an 8-port SRS resource may be {0, 1, 2, 3, 4, 5, 6, 7}, respectively. In another example, the index values ​​of the eight SRS ports of an 8-port SRS resource may be {1, 2, 3, 4, 5, 6, 7, 8}, respectively. It is understood that the index values ​​of the eight SRS ports of an 8-port SRS resource may also have other values, and this is not specifically limited in the present disclosure.

[0195] In some embodiments, the 8-port SRS resources may be of a time division multiplexing (TDM) allocation type.

[0196] In some embodiments, a TDM-type 8-port SRS resource may include a first group of SRS ports and a second group of SRS ports.

[0197] In some embodiments, the first group of SRS ports and the second group of SRS ports may include the same number of SRS ports.

[0198] In some embodiments, the first set of SRS ports may include 4 ports of an 8-port SRS resource.

[0199] In some embodiments, the index values ​​of the four ports in the first group of SRS ports may be {0, 1, 4, 5}. That is, the four SRS ports in the first group of SRS ports may be the SRS ports with index values ​​of 0, 1, 4, and 5, respectively, among the eight SRS ports in the eight-port SRS resource. It is understood that the index values ​​of the SRS ports in the first group of SRS ports may also have other values, which are not specifically limited in the present embodiment.

[0200] In some embodiments, the second set of SRS ports may include 4 ports of an 8-port SRS resource.

[0201] In some embodiments, the index values ​​of the four ports in the second group of SRS ports may be {2, 3, 6, 7}. That is, the four SRS ports in the first group of SRS ports may be the SRS ports with index values ​​of 2, 3, 6, and 7, respectively, among the eight SRS ports in the eight-port SRS resource. It is understood that the index values ​​of the SRS ports in the second group of SRS ports may also have other values, which are not specifically limited in the embodiments of the present disclosure.

[0202] It is understood that the first group of SRS ports and the second group of SRS ports may include different numbers of SRS ports. For example, the first group of SRS ports may include 3 SRS ports, and the second group of SRS ports may include 5 SRS ports. This embodiment of the present disclosure does not specifically limit this.

[0203] In some embodiments, the 8-port SRS resource may be of a non-TDM allocation type.

[0204] In some embodiments, an SRS resource set may include two 3-port SRS resources. The two 3-port SRS resources may be implemented based on the same or different first SRS resources. In one example, the two first SRS resources in the SRS resource set may both be 4-port SRS resources. In one example, the two first SRS resources in the SRS resource set may both be 8-port SRS resources. In another example, the two first SRS resources in the SRS resource set may be a 4-port SRS resource and an 8-port SRS resource, respectively.

[0205] In some embodiments, the first information may include a first information element.

[0206] 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.

[0207] In some embodiments, the first information may include the second information element.

[0208] In some embodiments, the second information element may be used to configure three SRS ports of a three-port SRS resource.

[0209] In some embodiments, the second information element may be used to indicate three SRS ports used for a three-port SRS resource in the first SRS resource.

[0210] In some embodiments, the second information element may include indication information.

[0211] In some embodiments, the indication information may be used to indicate the first port. In other words, the first port may be determined by the indication information.

[0212] In some embodiments, the first port may be one or more SRS ports of the plurality of SRS ports of the first SRS resource that are not used as the three SRS ports of the three-port SRS resource.

[0213] In some embodiments, the first port may include one or more SRS ports of the first SRS resource, and the one or more SRS ports may constitute an SRS port group.

[0214] In some embodiments, the indication information may include an index value of the first port.

[0215] In some embodiments, the indication information may be used to indicate the second port. In other words, the second port may be determined by the indication information.

[0216] In some embodiments, the second port may be an SRS port used as three SRS ports of a three-port SRS resource among the plurality of SRS ports of the first SRS resource.

[0217] In some embodiments, the second port may include one or more SRS ports of the first SRS resource, and the one or more SRS ports may constitute an SRS port group.

[0218] In some embodiments, the indication information may include an index value of the second port.

[0219] In some embodiments, the second information element may include a bitmap.

[0220] In some embodiments, the bitmap may be used to indicate at least one of the following: a first port, a second port. In other words, the first port and / or the second port may be determined by the bitmap.

[0221] In some embodiments, the number of bits in the bitmap may correspond to the number of SRS ports of the first SRS resource. In other words, the bits in the bitmap may correspond one-to-one to the SRS ports of the first SRS resource.

[0222] In some embodiments, each bit of the bitmap may be used to indicate whether the corresponding SRS port in the first SRS resource belongs to the first port or the second port.

[0223] In some embodiments, the value of each bit of the bitmap may be 1 or 0. In one example, the value 1 may be used to indicate that the corresponding SRS port belongs to the first port, and the value 0 may be used to indicate that the corresponding SRS port belongs to the second port. In another example, the value 0 may be used to indicate that the corresponding SRS port belongs to the first port, and the value 1 may be used to indicate that the corresponding SRS port belongs to the second port.

[0224] In some embodiments, the number of bits of the bitmap may be equal to 4. In other words, the number of bits of the bitmap may correspond to the number of SRS ports of a 4-port SRS resource.

[0225] In some embodiments, the number of bits of the bitmap may be equal to 8. In other words, the number of bits of the bitmap may correspond to the number of SRS ports of an 8-port SRS resource.

[0226] In some embodiments, the first information may include a third information element.

[0227] In some embodiments, the third information element may be used to configure the function as a codebook.

[0228] In some embodiments, the third information element may be used to configure the function of the SRS resource set as a codebook.

[0229] In some embodiments, the third information element may be used to indicate that the SRS resource set is used as a codebook.

[0230] In some embodiments, the third 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 third information element may also be other information elements or signaling, which is not specifically limited in the present embodiment.

[0231] In some embodiments, the first information may include a fourth information element.

[0232] In some embodiments, the fourth information element may be used to configure the first resource type.

[0233] In some embodiments, the fourth information element may be used to configure the resource type of the SRS resource set to be the first resource type.

[0234] In some embodiments, the resource type is used to indicate the periodicity of the 3-port SRS resource.

[0235] In some embodiments, the resource type may be used to indicate the periodicity of the 3-port SRS resources in the SRS resource set.

[0236] In some embodiments, resource types may include: periodic, semi-persistent, aperiodic

[0237] In some embodiments, the first resource type may be one of the following: periodic, semi-persistent, or aperiodic.

[0238] In some embodiments, the fourth 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 fourth information element may also be other information elements or signaling, which is not specifically limited in the present embodiment.

[0239] In some embodiments, the first information may include a fifth information element.

[0240] In some sets of embodiments, the fifth information element is associated with a first configuration of the 3-port SRS resource. The first configuration is associated with a spatial direction of the 3-port SRS resource.

[0241] In some embodiments, the fifth information element may be used to indicate the spatial direction of a 3-port SRS resource in the SRS resource set.

[0242] In some embodiments, the spatial direction may be a beam direction.

[0243] In some embodiments, the first configuration may include at least one of the following: space-related information, transmission configuration information (TCI) status.

[0244] In some embodiments, the spatial direction may be associated with at least one of: spatially related information, TCI status.

[0245] 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.

[0246] In some embodiments, the fifth information element may be a spatialRelationInfo information element.

[0247] 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 the TCI state.

[0248] In some embodiments, the fifth information element may be a TCI-state information element.

[0249] In some embodiments, different first SRS resources in an SRS resource set may correspond to different spatial directions. That is, different 3-port SRS resources in different SRS resource sets may correspond to different spatial directions. In some embodiments, the fifth information element associated with different first SRS resources may have different values, thereby configuring different spatial directions for different first SRS resources.

[0250] 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.

[0251] 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.

[0252] In some embodiments, the second information element may be associated with one of the following: an SRS resource set, a first SRS resource. 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 a first SRS resource. In one example, the second information element may be set in an information element corresponding to a first SRS resource. For example, the second information element may be set in an SRS-Resource information element.

[0253] In some embodiments, the third information element may be associated with one of the following: an SRS resource set, or a first SRS resource. 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 a first SRS resource. In one example, the third information element may be set in an information element corresponding to a first SRS resource. For example, the third information element may be set in an SRS-Resource information element.

[0254] In some embodiments, the fourth information element may be associated with one of the following: an SRS resource set, a first SRS resource. In some embodiments, the fourth information element may be set in an information element for an SRS resource set. In one example, the fourth information element may be set in an information element corresponding to an SRS resource set. For example, the fourth information element may be set in an SRS-ResourceSet information element. In some embodiments, the fourth information element may be set in an information element for a first SRS resource. In one example, the fourth information element may be set in an information element corresponding to a first SRS resource. For example, the fourth information element may be set in an SRS-Resource information element.

[0255] In some embodiments, the fifth information element may be associated with one of the following: an SRS resource set, a first SRS resource. 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 a first SRS resource. In one example, the fifth information element may be set in an information element corresponding to a first SRS resource. For example, the fifth information element may be set in an SRS-Resource information element.

[0256] In step S303 , the terminal 101 sends an SRS to the network device 102 .

[0257] In some embodiments, terminal 101 may send SRS via a configured 3-port SRS resource.

[0258] In some embodiments, the SRS may be transmitted via three transmitting antennas of the terminal 101. The three transmitting antennas may correspond to three SRS ports of a three-port SRS resource, respectively.

[0259] In some embodiments, network device 102 may receive an SRS.

[0260] In some embodiments, the three SRS ports of the 3-port SRS resource may be used to transmit SRS at the same transmit power. In other words, the transmit power of the SRS transmitted by the terminal 101 on the three SRS ports of the 3-port SRS resource may be equal.

[0261] In some embodiments, SRS may be transmitted in 1 or 2 spatial directions.

[0262] In some embodiments, the terminal 101 may determine three SRS ports for sending the SRS according to the first information, and send the SRS through the three SRS ports.

[0263] In some embodiments, the terminal 101 may determine the three SRS ports of the 3-port resource from the configured SRS ports of the first SRS resource. In other words, the three SRS ports of the 3-port SRS resource may belong to the SRS ports of the first SRS resource.

[0264] In some embodiments, the three SRS ports of the three-port resource may be determined by one of the following methods: pre-defined or signaling configuration.

[0265] In some embodiments, under the signaling configuration mode, the first information received by the terminal 101 may include the second information element.

[0266] In some embodiments, the indication information in the second information element may indicate the first port. In this case, the three SRS ports of the 3-port SRS resource may be determined by removing the first port. In one example, the first SRS resource may be a 4-port SRS resource, and the first port may include any one SRS port in the 4-port SRS resource. In this case, the indication information may indicate the one SRS port. For example, the indication information may include an index value of the SRS port (e.g., an index value of 0). Terminal 101 may remove the one SRS port indicated by the indication information in the 4-port SRS resource, and the remaining three SRS ports may be determined as the three SRS ports of the 3-port SRS resource. In one example, the first SRS resource may be an 8-port SRS resource, and the first port may include any five SRS ports in the 8-port SRS resource. In this case, the indication information may indicate the five SRS ports. For example, the indication information may include index values ​​of the five SRS ports (e.g., index values ​​of 0, 1, 2, 4, and 5, respectively). The terminal 101 may remove the five SRS ports indicated by the second information element in the eight-port SRS resource, and the remaining three SRS ports may be determined as the three SRS ports of the three-port SRS resource.

[0267] In some embodiments, the indication information in the second information element may indicate the second port. In this case, the three SRS ports of the 3-port SRS resource may be determined by selecting and transmitting three SRS ports from multiple SRS ports of the first SRS resource. In one example, the first SRS resource may be a 4-port SRS resource, and the second port may include any three SRS ports in the 4-port SRS resource. In this case, the indication information may indicate these three SRS ports. For example, the indication information may include index values ​​of these three SRS ports (e.g., index values ​​0, 1, and 2). Terminal 101 may select the three SRS ports indicated by the indication information in the 4-port SRS resource as the three SRS ports of the 3-port SRS resource. In one example, the first SRS resource may be an 8-port SRS resource, and the second port may include any three SRS ports in the 8-port SRS resource. In this case, the indication information may indicate these three SRS ports. For example, the indication information may include index values ​​of the three SRS ports (e.g., index values ​​5, 6, and 7, respectively). The terminal 101 may select the three SRS ports indicated by the second information element in the 8-port SRS resource as the three SRS ports of the 3-port SRS resource.

[0268] In some embodiments, the bitmap in the second information element may simultaneously indicate the first port and the second port. In one example, the first SRS resource may be a 4-port SRS resource, and the bitmap may include 4 bits. The 4 bits of the bitmap correspond one-to-one to the 4 SRS ports of the 4-port SRS resource. For example, the value of the bitmap may be [1, 1, 1, 0]. This may indicate that SRS ports {0, 1, 2} in the 4-port SRS resource are the second port, and the remaining SRS port {3} is the first port. For example, the value of the bitmap may be [1, 0, 0, 0]. This may indicate that SRS ports {1, 2, 3} in the 4-port SRS resource are the second port, and the remaining SRS port {0} is the first port. In one example, the first SRS resource may be an 8-port SRS resource, and the bitmap may include 8 bits. The 8 bits of the bitmap correspond one-to-one to the 8 SRS ports of the 8-port SRS resource. For example, the value of the bitmap may be [1, 1, 1, 0, 0, 0, 0]. This may indicate that SRS ports {0, 1, 2} in the 8-port SRS resource are the second ports, and the remaining SRS ports {3, 4, 5, 6, 7} are the first ports. For example, the bitmap value may be [1, 1, 1, 1, 1, 0, 0, 0]. This may indicate that SRS ports {5, 6, 7} in the 8-port SRS resource are the second ports, and the remaining SRS ports {0, 1, 2, 3, 4} are the first ports.

[0269] In some embodiments, in a predefined manner, the first information may not include the second information element. In this case, the terminal 101 may not expect to receive the second information element. In this case, the terminal 101 may determine the three SRS ports of the three-port SRS resource in a predefined manner.

[0270] In some embodiments, the terminal 101 may determine the first port in a predefined manner.

[0271] In some embodiments, the first SRS resource may be a 4-port SRS resource. In this case, in a predefined manner, the first port may include one of the following: the SRS port with the smallest index value corresponding to the 4-port SRS resource; or the SRS port with the largest index value corresponding to the 4-port SRS resource. In one example, the first port may include the SRS port with the smallest index value, i.e., SRS port {0}. In this case, the three SRS ports {0, 1, 2} of the 3-port SRS resource may correspond to the SRS ports {1, 2, 3} of the 4-port SRS resource. In one example, the first port may include the SRS port with the largest index value, i.e., SRS port {3}. In this case, the three SRS ports {0, 1, 2} of the 3-port SRS resource may correspond to the SRS ports {0, 1, 2} of the 4-port SRS resource.

[0272] In some embodiments, the first SRS resource may be an 8-port SRS resource of a non-TDM allocation type. In this case, in a predefined manner, the first port may include one of the following: the five SRS ports with the smallest index value corresponding to the 8-port SRS resource; or the five SRS ports with the largest index value corresponding to the 8-port SRS resource. In one example, the first port may include the five SRS ports with the smallest index value, namely, SRS ports {0, 1, 2, 3, 4}. In this case, the three SRS ports {0, 1, 2} of the 3-port SRS resource may correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource. In one example, the first port may include the five SRS ports with the largest index value, namely, SRS ports {3, 4, 5, 6, 7}. In this case, the three SRS ports {0, 1, 2} of the 3-port SRS resource may correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource.

[0273] In some embodiments, the first SRS resource may be an 8-port SRS resource of a TDM allocation type. In some embodiments, the first port may include 5 SRS ports from the first group of SRS ports and the second group of SRS ports. In some embodiments, the 3-port SRS resource may include one of the following: 3 SRS ports from the first group of SRS ports; 3 SRS ports from the second group of SRS ports; 2 SRS ports from the first group of SRS ports and 1 SRS port from the second group of SRS ports; 1 SRS port from the first group of SRS ports and 2 SRS ports from the second group of SRS ports. Correspondingly, the first port may include one of the following: 1 SRS port from the first group of SRS ports and the second group of SRS ports; 1 SRS port from the second group of SRS ports and the first group of SRS ports; 2 SRS ports from the first group of SRS ports and 1 SRS port from the second group of SRS ports; 3 SRS ports from the first group of SRS ports and 2 SRS ports from the second group of SRS ports.

[0274] In some embodiments, the terminal 101 may determine the second port in a predefined manner. It is understood that the second port is a port other than the first port in the first SRS resource. Therefore, the method for determining the second port may refer to the method for determining the first port, and will not be described in detail here.

[0275] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to the first three SRS ports in the first group of SRS ports. For example, the three SRS ports {0, 1, 2} of a 3-port SRS resource may correspond to the SRS ports {0, 1, 4} of an 8-port SRS resource.

[0276] In some embodiments, the three SRS ports of the 3-port SRS resource may correspond to the last three SRS ports in the first group of SRS ports. For example, the three SRS ports {0, 1, 2} of the 3-port SRS resource may correspond to the SRS ports {1, 4, 5} of the 8-port SRS resource.

[0277] In some embodiments, the three SRS ports of the 3-port SRS resource may correspond to the first three SRS ports in the second group of SRS ports. For example, the three SRS ports {0, 1, 2} of the 3-port SRS resource may correspond to the SRS ports {2, 3, 6} of the 8-port SRS resource.

[0278] In some embodiments, the three SRS ports of the 3-port SRS resource may correspond to the last three SRS ports in the second group of SRS ports. For example, the three SRS ports {0, 1, 2} of the 3-port SRS resource may correspond to the SRS ports {3, 6, 7} of the 8-port SRS resource.

[0279] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to the first SRS port in the first group of SRS ports and the first two SRS ports in the second group of SRS ports. For example, the three SRS ports {0, 1, 2} of a 3-port SRS resource may correspond to SRS ports {0, 2, 3} of an 8-port SRS resource, i.e., SRS port {0} in the first group of SRS ports {0, 1, 4, 5} and SRS ports {2, 3} in the second group of SRS ports {2, 3, 6, 7}.

[0280] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to the first two SRS ports in the first group of SRS ports and the first SRS port in the second group of SRS ports. For example, the three SRS ports {0, 1, 2} of a 3-port SRS resource may correspond to SRS ports {0, 1, 2} of an 8-port SRS resource, i.e., SRS ports {0, 1} in the first group of SRS ports {0, 1, 4, 5} and SRS port {2} in the second group of SRS ports {2, 3, 6, 7}.

[0281] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to the last SRS port in the first group of SRS ports and the last two SRS ports in the second group of SRS ports. For example, the three SRS ports {0, 1, 2} of a 3-port SRS resource may correspond to SRS ports {5, 6, 7} of an 8-port SRS resource, i.e., SRS port {5} in the first group of SRS ports {0, 1, 4, 5} and SRS ports {6, 7} in the second group of SRS ports {2, 3, 6, 7}.

[0282] In some embodiments, the three SRS ports of a 3-port SRS resource may correspond to the last two SRS ports in the first group of SRS ports and the last SRS port in the second group of SRS ports. For example, the three SRS ports {0, 1, 2} of a 3-port SRS resource may correspond to SRS ports {4, 5, 7} of an 8-port SRS resource, i.e., SRS ports {4, 5} in the first group of SRS ports {0, 1, 4, 5} and SRS port {7} in the second group of SRS ports {2, 3, 6, 7}.

[0283] In some embodiments, the first SRS resource may be a 4-port SRS resource. In this case, the correspondence between the 4 SRS ports {0, 1, 2, 3} of the 4-port SRS resource and the 3 SRS ports {0, 1, 2} of the implemented 3-port SRS resource may be expressed as: i =P j , where P' i The SRS port of the 3-port SRS resource, P j is an SRS port of a 4-port SRS resource, i={0,1,2}, j={0,1,2,3}. Each SRS port of a 3-port SRS resource may be one of the four SRS ports of a 4-port SRS resource.

[0284] In some embodiments, the correspondence between the four SRS ports of the 4-port SRS resource and the three SRS ports of the 3-port SRS resource can be seen in Table 1 below.

[0285] Table 1: Correspondence between the ports of the 4-port SRS resource and the 3 SRS ports

[0286] It should be noted that Table 1 schematically indicates that three of the four SRS ports of a four-port SRS resource are used as the three SRS ports of a three-port SRS resource. However, Table 1 does not limit the specific correspondence. In one example, in the first row, the three SRS ports {0, 1, 2} of the four-port SRS resource correspond to the three SRS ports {0, 1, 2} of the three-port SRS resource. The correspondence between the two can be arbitrary. For example, the SRS ports with index values ​​of 0, 1, and 2 of the four-port SRS resource can correspond to the SRS ports with index values ​​of 0, 1, and 2 of the three-port SRS resource, or the SRS ports with index values ​​of 0, 1, and 2 of the four-port SRS resource can correspond to the SRS ports with index values ​​of 2, 1, and 0 of the three-port SRS resource, or the SRS ports with index values ​​of 0, 1, and 2 of the four-port SRS resource can correspond to the SRS ports with index values ​​of 1, 0, and 2 of the three-port SRS resource, respectively. The embodiments of the present disclosure do not specifically limit this.

[0287] In some embodiments, the first SRS resource may be an 8-port SRS resource. In this case, the correspondence between the 8 SRS ports {0, 1, 2, 3} of the 8-port SRS resource and the 3 SRS ports {0, 1, 2} of the implemented 3-port SRS resource may be expressed as: i =P j , where P' i The SRS port of the 3-port SRS resource, P j is an SRS port of an 8-port SRS resource, i={0,1,2}, j={0,1,2,3,4,5,6,7}. Each SRS port of a 3-port SRS resource may be one of the 8 SRS ports of an 8-port SRS resource.

[0288] In some embodiments, the correspondence between the 8 SRS ports of the 8-port SRS resource and the 3 SRS ports of the 3-port SRS resource using the non-TDM allocation type can be seen in Table 2 below.

[0289] Table 2: Correspondence between each port of the 8-port SRS resource (non-TDM) and the three SRS ports

[0290] In some embodiments, the correspondence between the 8 SRS ports of the 8-port SRS resource and the 3 SRS ports of the 3-port SRS resource using the TDM allocation type can be seen in Table 3 below.

[0291] Table 3: Correspondence between each port of the 8-port SRS resource (TDM) and the three SRS ports

[0292] Here, only some of the correspondences are given in Table 2 and Table 3. It is understood that for an 8-port SRS resource, there may be other correspondences between its SRS ports and the three SRS ports of a 3-port SRS resource, which is not specifically limited in the embodiments of the present disclosure.

[0293] It should be noted that Tables 2 and 3 schematically indicate that three of the eight SRS ports of the eight-port SRS resource are used as three SRS ports of the three-port SRS resource. However, similar to Table 1, Tables 2 and 3 do not limit the specific correspondence.

[0294] In some embodiments, the last SRS port of the four SRS ports of the four-port SRS resource may be removed to obtain three SRS ports of the three-port SRS resource. Specifically, the process of removing the last SRS port of the four SRS ports of the four-port SRS resource may be implemented by the following formula (1):

[0295] Among them, p i is the SRS port index before mapping, The index of the SRS port after mapping.

[0296] In some embodiments, formula (1) can be expressed as

[0297] In some embodiments, the first of the four SRS ports of the 4-port SRS resource may be removed to obtain the three SRS ports of the 3-port SRS resource. Specifically, the process of removing the last of the four SRS ports of the 4-port SRS resource may be performed by accomplish.

[0298] In some embodiments, the last five SRS ports of the eight SRS ports of the eight-port SRS resource may be removed to obtain three SRS ports of the three-port SRS resource. The process of removing the last five SRS ports of the eight SRS ports of the eight-port SRS resource may be implemented by formula (1).

[0299] In some embodiments, the first five SRS ports of the eight SRS ports of the eight-port SRS resource may be removed to obtain three SRS ports of the three-port SRS resource. In one example, specifically, the process of removing the first five SRS ports of the eight SRS ports of the eight-port SRS resource may be performed by: Achieve realization.

[0300] In some embodiments, each SRS port {0, 1, 2} may also have other index numbers (ie, port numbers), such as {1000, 1001, 1002}, which is not specifically limited in the embodiments of the present disclosure.

[0301] In step S304 , the network device 102 sends second information to the terminal 101 .

[0302] In some embodiments, terminal 101 may receive second information.

[0303] In some embodiments, the second information may be used to indicate the first SRS port.

[0304] 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.

[0305] In some embodiments, the second information may be carried in downlink control information (DCI) signaling.

[0306] In some embodiments, the DCI signaling may be carried in a physical downlink control channel (PDCCH).

[0307] In some embodiments, the second information may include a sixth information element.

[0308] In some embodiments, the sixth information element may be used to indicate the first SRS port.

[0309] In some embodiments, the sixth information element may be used to indicate a first resource for PUSCH transmission based on the codebook, where the first resource is a 3-port SRS resource in the SRS resource set. The first resource corresponds to a first SRS port.

[0310] In some embodiments, the sixth information element may be an SRS resource indication.

[0311] In some embodiments, the sixth information element may be an SRI (SRS resource indicator) information element.

[0312] In some embodiments, the SRS resource set may include one 3-port SRS resource. The number of bits of the sixth information element may be 0. In other words, the sixth information element may be omitted. In one example, the second information may indicate the 3-port SRS resource by default.

[0313] In some embodiments, the SRS resource set may include two 3-port SRS resources. The number of bits in the sixth information element may be 1. Different values ​​of the sixth information element may be used to indicate different 3-port SRS resources. In one example, if the value of the sixth information element is "0," it may indicate the first 3-port SRS resource; if the value of the sixth information element is "1," it may indicate the second 3-port SRS resource. In one example, if the value of the sixth information element is "1," it may indicate the first 3-port SRS resource; if the value of the sixth information element is "0," it may indicate the second 3-port SRS resource.

[0314] In some embodiments, the network device 101 may obtain uplink CSI based on the SRS sent by the terminal 101 through the three SRS ports.

[0315] In some embodiments, the uplink CSI may be used to indicate the status of an uplink channel.

[0316] 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.

[0317] 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.

[0318] 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.

[0319] In step S305 , the terminal 101 sends a PUSCH to the network device 102 .

[0320] In some embodiments, network device 102 may receive the PUSCH.

[0321] In some embodiments, the terminal 101 may perform codebook-based PUSCH transmission through the first SRS port specified by the second information.

[0322] In some embodiments, the terminal 101 may perform codebook-based PUSCH transmission through the antenna port corresponding to the first resource.

[0323] 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.

[0324] 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.

[0325] 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.

[0326] In some embodiments, the terms "DCI", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0327] 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.

[0328] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0329] 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.

[0330] 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.

[0331] 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.

[0332] 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.

[0333] 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.

[0334] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0335] 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.

[0336] 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.

[0337] 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.

[0338] The communication method according to the embodiments of the present disclosure may include at least one of steps S301 to S305. For example, step S303 may be implemented as an independent embodiment, step S304 may be implemented as an independent embodiment, and the combination of steps S302 and S303 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0339] 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.

[0340] In some embodiments, steps S301 , S302 , S304 , and S305 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0341] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0342] 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.

[0343] In step S401, capability information is sent.

[0344] 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.

[0345] 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.

[0346] 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.

[0347] In step S402, first information is obtained.

[0348] 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.

[0349] 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.

[0350] In some embodiments, terminal 101 may obtain the first information from a higher layer.

[0351] In some embodiments, the first information may be determinable by the network device 102 based on the capability information.

[0352] In step S403, an SRS is sent.

[0353] 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.

[0354] 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.

[0355] In some embodiments, SRS may be used by the network device 102 to determine the first SRS port. 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.

[0356] In step S404, the second information is obtained.

[0357] 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.

[0358] 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.

[0359] In some embodiments, terminal 101 may obtain the second information from a higher layer.

[0360] In some embodiments, the second information may be determined by the network device 102 based on the SRS.

[0361] In step S405, a PUSCH is transmitted.

[0362] 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.

[0363] 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.

[0364] 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.

[0365] 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.

[0366] 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.

[0367] 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.

[0368] In step S501, capability information is acquired.

[0369] 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.

[0370] 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.

[0371] In some embodiments, network device 102 may obtain capability information specified by the protocol.

[0372] In some embodiments, network device 102 may obtain capability information from higher layers.

[0373] In some embodiments, the network device 102 may perform processing to obtain the capability information.

[0374] 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.

[0375] In step S502, first information is sent.

[0376] The optional implementation of step S502 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.

[0377] 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.

[0378] 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.

[0379] In step S503, the SRS is acquired.

[0380] 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.

[0381] 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.

[0382] In step S504, the second information is sent.

[0383] Optional implementations of step S504 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.

[0384] 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.

[0385] In some embodiments, the second information can be used by the terminal 101 to send PUSCH on the first SRS port. Its optional implementation method can refer to the optional implementation method of step S304 in Figure 3 and other related parts of the embodiment involved in Figure 3, which will not be repeated here.

[0386] In step S505, PUSCH is acquired.

[0387] 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.

[0388] 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.

[0389] 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.

[0390] 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.

[0391] 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.

[0392] 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.

[0393] In step S601 , the network device 102 sends first information to the terminal 101 .

[0394] 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.

[0395] 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.

[0396] Hereinafter, the embodiments of the present disclosure are exemplarily described through specific implementation methods.

[0397] In some embodiments, support can be added in, The number of supported SRS ports. The higher-layer signaling command nrofSRS-Ports can be configured with up to 3 ports.

[0398] In some embodiments, the configuration method of 3-port SRS resources can be: increasing the number of SRS ports configured in the SRS resource set to 3; the SRS resources configured in the SRS resource set only include 1 4 / 8-port SRS resource or 4 / 8-port SRS resources with the same number of ports configured with 2 different space-related information.

[0399] In one scenario, the 3-port SRS transmission may adopt transmission method 1.

[0400] In some embodiments, in the transmission method 1, a set of 3-port SRS resources may be obtained by configuring a 4-port SRS resource and removing (dropping) one of the SRS ports.

[0401] In some embodiments, when K TC =2 / 4, Configured by high-level Depend on Obtain, obtain 3-port SRS resources through a predefined method.

[0402] In some embodiments, the last SRS port can be removed. You can have:

[0403] In some embodiments, the first SRS port can be removed. In one example,

[0404] In some embodiments, the use or removal of SRS ports or port groups is configured via higher layer signaling.

[0405] In some embodiments, when K TC =8 o'clock, Configured by high-level Depend on Obtain, obtain 3-port SRS resources through a predefined method.

[0406] In some embodiments, the last SRS port can be removed. You can have:

[0407] In some embodiments, the first SRS port is removed. In one example,

[0408] In some embodiments, the SRS port configured by higher layer signaling may be removed.

[0409] In one scenario, the 3-port SRS transmission may adopt transmission method 1.

[0410] In some embodiments, for 8-port SRS resources of non-TDM allocation type, similar to 4-port SRS resources, there are:

[0411] In some embodiments, the last five SRS ports can be removed. You can have:

[0412] In some embodiments, the first five SRS ports may be removed.

[0413] In some embodiments, the SRS ports configured by the higher layer signaling can be removed. In one example, the higher layer signaling can indicate whether to use the first three ports or the last three ports, or indicate a group in another port grouping, or use a bitmap to indicate the SRS ports to use or remove.

[0414] In some embodiments, the 8-port SRS resource may be of TDM allocation type.

[0415] In some embodiments, only a group of OFDM symbols corresponding to an SRS port subset {0, 1, 4, 5} or {2, 3, 6, 7} may be retained, and then the transmission of one of the SRS ports may be removed in a predefined manner.

[0416] In some embodiments, each SRS port subset reserves transmission of a portion of SRS ports, and the corresponding SRS port subset {0-3} or {4-7} reserves transmission of the first / last 1+2 or 2+1 ports respectively.

[0417] In one example, the first 1+2 method may be used, and ports {0, 2, 3} are reserved.

[0418] In one example, the first 2+1 method may be used, and ports {0, 1, 2} are reserved.

[0419] In one example, the latter 1+2 method may be adopted, and ports {5, 6, 7} are reserved.

[0420] In one example, the latter 2+1 method may be adopted, and ports {4, 5, 7} are reserved.

[0421] In some embodiments, this can be achieved through pre-defined or signaling configuration methods.

[0422] In some embodiments, the SRS port numbering needs to be re-mapped to Pi = Pj, where i = {0, 1, 2} and j = {0, 1, ..., 7}. j corresponds to the reserved original SRS port number. The terminal needs to ensure that different physical antennas are used for transmission on different SRS ports.

[0423] 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.

[0424] 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.

[0425] 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 a 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 implemented in the form of software called by the processor, or in the form of hardware circuits, or in part by software called by the processor, and the rest by hardware circuits.

[0426] 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.

[0427] 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 SRS resource set functions as a codebook, the SRS resource set includes at least one 3-port SRS resource, the 3-port SRS resource is used to obtain uplink CSI through 3 SRS ports, and the CSI is used for PUSCH transmission based on the codebook; wherein the 3-port SRS resource is determined by the first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3; wherein, when there are more than one 3-port SRS resource, different 3-port SRS resources correspond to different spatial directions. 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.

[0428] 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 SRS resource set functions as a codebook, the SRS resource set includes at least one 3-port SRS resource, the 3-port SRS resource is used to obtain uplink CSI through 3 SRS ports, and the CSI is used for PUSCH transmission based on the codebook; wherein the 3-port SRS resource is determined by the first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3; wherein, when there are more than one 3-port SRS resource, different 3-port SRS resources correspond to different spatial directions. 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.

[0429] 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.

[0430] 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.

[0431] 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.

[0432] 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.

[0433] 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.

[0434] 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.

[0435] 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.

[0436] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0437] 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.

[0438] 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.

[0439] 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.

[0440] 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.

[0441] 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.

[0442] 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.

[0443] 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.

[0444] 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 terminal, wherein, The terminal is a 3 - transmit - antenna terminal, and the method includes: Receiving 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 at least one 3 - port SRS resource, and the 3 - port SRS resource is used to obtain uplink channel state information (CSI) through 3 SRS ports, and the CSI is used for physical uplink shared channel (PUSCH) transmission based on the codebook; Wherein, the 3 - port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

2. The method according to claim 1, wherein When there are more than 1 3 - port SRS resources, different 3 - port SRS resources correspond to different spatial directions.

3. The method according to claim 1 or 2, wherein The spatial direction is associated with at least one of the following: Spatial correlation information; Transmission configuration indication (TCI) state.

4. The method according to any one of claims 1 to 3, wherein, The first SRS resource includes one of the following: 4 - port SRS resource; 8 - port SRS resource.

5. The method according to any one of claims 1 to 4, wherein The first information includes a first cell, and the first cell is used to configure the number of SRS ports to 3; Wherein, the first cell is associated with the SRS resource set.

6. The method according to any one of claims 1 to 5, wherein The 3 SRS ports of the 3 - port SRS resource belong to the SRS ports of the first SRS resource.

7. The method according to any one of claims 1 to 6, wherein The 3 SRS ports of the 3 - port SRS resource are determined by at least one of the following methods: Pre - defined; Signaling configuration.

8. The method according to any one of claims 1 to 7, wherein The first SRS resource is a 4 - port SRS resource, and the 3 SRS ports of the 3 - port SRS resource correspond to 3 of the 4 SRS ports of the 4 - port SRS resource.

9. The method according to claim 8, wherein, The 3 SRS ports of the 3 - port SRS resource are determined by one of the following methods: Removing a first port from the 4 SRS ports of the 4 - port SRS resource, where the first port is one of the 4 SRS ports of the 4 - port SRS resource, and the remaining 3 SRS ports of the 4 SRS ports of the 4 - port SRS resource are used as the 3 SRS ports of the 3 - port SRS resource; Selecting 3 SRS ports from the 4 SRS ports of the 4 - port SRS resource as the 3 SRS ports of the 3 - port SRS resource.

10. The method according to claim 9, wherein, The 4 SRS ports of the 4 - port SRS resource have different index values; Wherein, in the pre - defined method, the first port includes one of the following: The SRS port with the smallest index value corresponding to the 4 - port SRS resource; The SRS port with the largest index value corresponding to the 4 - port SRS resource.

11. The method according to claim 10, wherein, The index values of the 3 SRS ports of the 3 - port SRS resource are {0, 1, 2} respectively, and the index values of the 4 SRS ports of the 4 - port SRS resource are {0, 1, 2, 3} respectively; Wherein, the correspondence relationship between the 3 SRS ports of the 3 - port SRS resource and the SRS ports of the 4 - port SRS resource includes one of the following: The 3 SRS ports {0, 1, 2} of the 3 - port SRS resource correspond to the SRS ports {1, 2, 3} of the 4 - port SRS resource; The three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 4-port SRS resource.

12. The method according to any one of claims 1 to 7, wherein, The first SRS resource is an 8-port SRS resource. The 8-port SRS resource is of non-time division multiplexing (TDM) allocation type. The three SRS ports of the 3-port SRS resource correspond to three of the eight SRS ports of the 8-port SRS resource.

13. The method according to claim 12, wherein, The three SRS ports of the 3-port SRS resource are determined by one of the following methods: Remove the first port among the eight SRS ports of the 8-port SRS resource, where the first port is five of the eight SRS ports of the 8-port SRS resource, and the remaining three SRS ports among the eight SRS ports of the 8-port SRS resource serve as the three SRS ports of the 3-port SRS resource; Select three SRS ports from the eight SRS ports of the 8-port SRS resource as the three SRS ports of the 3-port SRS resource.

14. The method according to claim 13, wherein, The eight SRS ports of the 8-port SRS resource have different index values; Among them, in a predefined manner, the first port includes one of the following: The five SRS ports with the smallest index values corresponding to the 8-port SRS resource; The five SRS ports with the largest index values corresponding to the 8-port SRS resource.

15. The method according to claim 14, wherein, The index values of the three SRS ports of the 3-port SRS resource are respectively {0, 1, 2}, and the index values of the eight SRS ports of the 8-port SRS resource are respectively {0, 1, 2, 3, 4, 5, 6, 7}; Among them, the correspondence between the three SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource includes one of the following: The three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; The three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource.

16. The method according to any one of claims 1 to 7, wherein The first SRS resource is an 8-port SRS resource. The 8-port SRS resource is of TDM allocation type. The first SRS resource includes a first group of SRS ports and a second group of SRS ports. The first group of SRS ports includes four SRS ports, and the second group of SRS ports includes four SRS ports; Among them, the 3-port SRS resource includes one of the following: Three SRS ports in the first group of SRS ports; Three SRS ports in the first group of SRS ports; Two SRS ports in the first group of SRS ports and one SRS port in the second group of SRS ports; One SRS port in the first group of SRS ports and two SRS ports in the second group of SRS ports.

17. The method according to claim 16, wherein, The three SRS ports of the 3-port SRS resource are determined by one of the following methods: Remove the first port among the first set of SRS ports and the second set of SRS ports, where the first port is 5 SRS ports among the first set of SRS ports and the second set of SRS ports, and the remaining 3 SRS ports among the first set of SRS ports and the second set of SRS ports serve as the 3 SRS ports of the 3-port SRS resource; Select 3 SRS ports from the first set of SRS ports and the second set of SRS ports as the 3 SRS ports of the 3-port SRS resource.

18. The method according to claim 17, wherein, The index values of the 3 SRS ports of the 3-port SRS resource are respectively {0, 1, 2}, the index values of the 4 SRS ports in the first set of SRS ports are respectively {0, 1, 4, 5}, and the index values of the 4 SRS ports in the second set of SRS ports are respectively {2, 3, 6, 7}; Among them, the correspondence between the 3 SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource includes one of the following: The 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 2, 3} of the 8-port SRS resource; The 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource; The 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; The 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {4, 6, 7} of the 8-port SRS resource.

19. The method according to any one of claims 9, 13, and 17, wherein, In the signaling configuration mode, the first port is configured by at least one of the following methods: Indication information; Bitmap.

20. The method according to any one of claims 1 to 19, wherein, The 3 SRS ports of the 3-port SRS resource are used to send SRS with the same transmit power.

21. A communication method, performed by a network device, wherein, The method includes: Send first information to a terminal, where the terminal is a 3-transmit-antenna terminal, and 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 at least one 3-port SRS resource. The 3-port SRS resource is used to obtain uplink channel state information CSI through 3 SRS ports, and the CSI is used for physical uplink shared channel PUSCH transmission based on the codebook; Among them, the 3-port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

22. The method according to claim 21, wherein In the case where there is more than 1 3-port SRS resource, different 3-port SRS resources correspond to different spatial directions.

23. The method according to claim 21 or 22, wherein The spatial direction is associated with at least one of the following: Spatial correlation information; Transmission configuration indication TCI state.

24. The method according to any one of claims 21 to 23, wherein The first SRS resource includes one of the following: 4-port SRS resource; 8-port SRS resource.

25. The method according to any one of claims 21 to 24, wherein The first information includes a first cell, and the first cell is used to configure the number of SRS ports to 3; Among them, the first cell is associated with the SRS resource set.

26. The method according to any one of claims 21 to 25, wherein The three SRS ports of the 3-port SRS resource belong to the SRS ports of the first SRS resource.

27. The method according to any one of claims 21 to 26, wherein The three SRS ports of the 3-port SRS resource are determined by at least one of the following methods: Predefined; Signaling configuration.

28. The method according to any one of claims 21 to 27, wherein, The first SRS resource is a 4-port SRS resource, and the three SRS ports of the 3-port SRS resource correspond to three of the four SRS ports of the 4-port SRS resource.

29. The method according to claim 28, wherein, The three SRS ports of the 3-port SRS resource are determined by one of the following methods: Remove the first port among the four SRS ports of the 4-port SRS resource, where the first port is one of the four ports of the 4-port SRS resource, and the remaining three ports among the four SRS ports of the 4-port SRS resource are used as the three SRS ports of the 3-port SRS resource; Select three SRS ports from the four SRS ports of the 4-port SRS resource as the three SRS ports of the 3-port SRS resource.

30. The method according to claim 29, wherein The four SRS ports of the 4-port SRS resource have different index values; Among them, in the predefined method, the first port includes one of the following: The SRS port corresponding to the 4-port SRS resource with the smallest index value; The SRS port corresponding to the 4-port SRS resource with the largest index value.

31. The method according to claim 30, wherein, The index values of the three SRS ports of the 3-port SRS resource are {0, 1, 2} respectively, and the index values of the four SRS ports of the 4-port SRS resource are {0, 1, 2, 3} respectively; Among them, the corresponding relationship between the three SRS ports of the 3-port SRS resource and the SRS ports of the 4-port SRS resource includes one of the following: The three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {1, 2, 3} of the 4-port SRS resource; The three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 4-port SRS resource.

32. The method according to any one of claims 21 to 27, wherein The first SRS resource is an 8-port SRS resource, the 8-port SRS resource is of non-time division multiplexing (TDM) allocation type, and the three SRS ports of the 3-port SRS resource correspond to three of the eight SRS ports of the 8-port SRS resource.

33. The method according to claim 32, wherein, The three SRS ports of the 3-port SRS resource are determined by one of the following methods: Remove the first port among the eight SRS ports of the 8-port SRS resource, where the first port is five of the eight SRS ports of the 8-port SRS resource, and the remaining three SRS ports among the eight SRS ports of the 8-port SRS resource are used as the three SRS ports of the 3-port SRS resource; Select three SRS ports from the eight SRS ports of the 8-port SRS resource as the three SRS ports of the 3-port SRS resource.

34. The method according to claim 33, wherein, The eight SRS ports of the 8-port SRS resource have different index values; Among them, in the predefined method, the first port includes one of the following: The 5 SRS ports with the smallest index values corresponding to the 8-port SRS resource; The 5 SRS ports with the largest index values corresponding to the 8-port SRS resource.

35. The method according to claim 34, wherein, The index values of the 3 SRS ports of the 3-port SRS resource are {0, 1, 2} respectively, and the index values of the 8 SRS ports of the 8-port SRS resource are {0, 1, 2, 3, 4, 5, 6, 7} respectively; Among them, the correspondence between the 3 SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource includes one of the following: The 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; The 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource.

36. The method according to any one of claims 21 to 27, wherein The first SRS resource is an 8-port SRS resource, the 8-port SRS resource is of TDM allocation type, the first SRS resource includes a first group of SRS ports and a second group of SRS ports, the first group of SRS ports includes 4 SRS ports, and the second group of SRS ports includes 4 SRS ports; Among them, the 3-port SRS resource includes one of the following: 3 SRS ports in the first group of SRS ports; 3 SRS ports in the first group of SRS ports; 2 SRS ports in the first group of SRS ports and 1 SRS port in the second group of SRS ports; 1 SRS port in the first group of SRS ports and 2 SRS ports in the second group of SRS ports.

37. The method according to claim 36, wherein, The 3 SRS ports of the 3-port SRS resource are determined by one of the following methods: Removing the first ports in the first group of SRS ports and the second group of SRS ports, where the first ports are 5 SRS ports in the first group of SRS ports and the second group of SRS ports, and the remaining 3 SRS ports in the first group of SRS ports and the second group of SRS ports are used as the 3 SRS ports of the 3-port SRS resource; Selecting 3 SRS ports from the first group of SRS ports and the second group of SRS ports as the 3 SRS ports of the 3-port SRS resource.

38. The method according to claim 35, wherein The index values of the 3 SRS ports of the 3-port SRS resource are {0, 1, 2} respectively, the index values of the 4 SRS ports in the first group of SRS ports are {0, 1, 4, 5} respectively, and the index values of the 4 SRS ports in the second group of SRS ports are {2, 3, 6, 7} respectively; Among them, the correspondence between the 3 SRS ports of the 3-port SRS resource and the SRS ports of the 8-port SRS resource includes one of the following: The 3 SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 2, 3} of the 8-port SRS resource; The three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {0, 1, 2} of the 8-port SRS resource; The three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {5, 6, 7} of the 8-port SRS resource; The three SRS ports {0, 1, 2} of the 3-port SRS resource correspond to the SRS ports {4, 6, 7} of the 8-port SRS resource.

39. The method according to any one of claims 29, 33, and 37, wherein, In the signaling configuration mode, the first port is configured by at least one of the following methods: Indication information; Bitmap.

40. The method according to any one of claims 21 to 39, wherein The three SRS ports of the 3-port SRS resource are used to send SRS with the same transmission power.

41. A terminal, comprising: A transceiver module, configured to receive first information sent by a network device, 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 at least one 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink channel state information CSI through three SRS ports, and the CSI is used for physical uplink shared channel PUSCH transmission based on the codebook; Wherein, the 3-port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

42. A network device, comprising: A transceiver module, configured to send 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 at least one 3-port SRS resource, and the 3-port SRS resource is used to obtain uplink channel state information CSI through three SRS ports, and the CSI is used for physical uplink shared channel PUSCH transmission based on the codebook; Wherein, the 3-port SRS resource is determined by a first SRS resource, and the number of SRS ports of the first SRS resource is greater than 3.

43. 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 described in any one of claims 1 to 20.

44. 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 described in any one of claims 21 to 40.

45. A communication system, comprising: A terminal, configured to implement the communication method described in any one of claims 1 to 20; A network device, configured to implement the communication method described in any one of claims 21 to 40.

46. A storage medium storing instructions, wherein, When the instructions run on a communication device, the communication device is caused to execute the communication method described in any one of claims 1 to 40.

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