CN117999840A - Communication method, terminal, network device, communication system, and storage medium - Google Patents

Abstract

The embodiment of the disclosure provides a communication method, a terminal, a network device, a communication system and a storage medium. The communication method comprises the following steps: and sending first information to the terminal, wherein the terminal is a 3-sending antenna terminal, the first information is used for configuring an SRS resource set, the SRS resource set is a codebook, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH sending based on the codebook. Through the embodiment of the disclosure, the terminal with 3 transmitting antennas can transmit SRS through 3 SRS ports.

Description

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

Technical Field

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

In the communication system, the terminal may transmit a Sounding REFERENCE SIGNAL (SRS) to the access network device, thereby acquiring uplink channel quality. The SRS resources used by the terminal to transmit SRS may be configured by the access network device. With the development of communication technology, a terminal may have 3 transmitting antennas. In this case, the access network device needs to be able to configure the terminal with corresponding SRS resources supporting the terminal with 3 transmission lines.

Disclosure of Invention

The embodiment of the disclosure provides a communication method, a terminal, network equipment, a communication system and a storage medium, so as to configure 3-port SRS resources for the terminal.

According to a first aspect of embodiments of the present disclosure, a communication method is provided. The communication method may be performed by a network device. The method comprises the following steps: and sending first information to the terminal, wherein the terminal is a 3-sending antenna terminal, the first information is used for configuring an SRS resource set, the SRS resource set is a codebook, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink Channel State Information (CSI) through 3 SRS ports, and the uplink CSI is used for Physical Uplink Shared Channel (PUSCH) sending based on the codebook.

According to a second aspect of embodiments of the present disclosure, a communication method is provided. The communication method may be performed by a terminal. The terminal is a 3-transmit antenna terminal. The method comprises the following steps: and receiving first information sent by the network equipment, wherein the first information is used for configuring an SRS resource set, the SRS resource set has a codebook function, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH sending based on the codebook.

According to a third aspect of embodiments 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 the terminal, wherein the terminal is a 3-transmission antenna terminal, the first information is used for configuring an SRS resource set, the SRS resource set is a codebook, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH transmission based on the codebook.

According to a fourth aspect of embodiments of the present disclosure, a terminal is provided. The terminal includes a transceiver module. The receiving and transmitting module is configured to receive first information sent by the network device, wherein the terminal is a 3-sending antenna terminal, the first information is used for configuring an SRS resource set, the function of the SRS resource set is a codebook, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH sending based on the codebook.

According to a fifth aspect of embodiments of the present disclosure, a network device is provided. The terminal includes at least one processor and a memory storing instructions. The instructions, when executed by a network device, cause the network device to implement the communication method as described in the first aspect.

According to a sixth aspect of embodiments of the present disclosure, a terminal is provided. The terminal includes at least one processor and a memory storing instructions. The instructions, when executed by the terminal, cause the terminal to implement the communication method as described in the second aspect.

According to a seventh aspect of embodiments of the present disclosure, a communication system is provided. The communication system includes a terminal and a network device. The network device is configured to perform the communication method as described in the first aspect. The terminal is configured to perform the communication method as described in the second aspect.

According to an eighth aspect of embodiments of the present disclosure, there is provided a storage medium. The storage medium stores instructions. The instructions, when executed on a communication device, cause the communication device to perform the communication method as described in the first or second aspect.

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

According to a tenth aspect of embodiments of the present disclosure, a computer program is provided. The computer program, when run on a computer, causes the computer to perform the communication method as described in the first or second aspect.

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

Through the embodiment of the disclosure, the terminal with 3 transmitting antennas can transmit SRS through 3 SRS ports.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of embodiments of the disclosure.

Drawings

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

Fig. 1 is a schematic architecture diagram of a communication system provided according to an embodiment of the present disclosure.

Fig. 2 is a schematic diagram of mapping of SRS resources on time-frequency domain resources.

Fig. 3 is an exemplary interaction diagram of a communication method provided in accordance with an embodiment of the present disclosure.

Fig. 4 is an exemplary flowchart of a communication method provided in accordance with an embodiment of the present disclosure.

Fig. 5 is an exemplary flowchart of a communication method provided in accordance with an embodiment of the present disclosure.

Fig. 6 is an exemplary interaction diagram of a communication method provided in accordance with an embodiment of the present disclosure.

Fig. 7A is an exemplary block diagram of a terminal provided according to an embodiment of the present disclosure.

Fig. 7B is an exemplary block diagram of a network device provided in accordance with an embodiment of the present disclosure.

Fig. 8A is a schematic structural diagram of a communication device provided according to an embodiment of the present disclosure.

Fig. 8B is a schematic structural diagram of a chip provided according to an embodiment of the present disclosure.

Detailed Description

The embodiment of the disclosure provides a communication method, a terminal, network equipment, a communication system and a storage medium.

In a first aspect, embodiments of the present disclosure provide a communication method. The communication method may be performed by a network device. The method comprises the following steps: and sending first information to the terminal, wherein the terminal is a 3-sending antenna terminal, the first information is used for configuring an SRS resource set, the SRS resource set is a codebook, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH sending based on the codebook.

According to the embodiment of the application, the SRS resource set with the function of the codebook can be configured for the terminal through the first information. In this way, 3-port SRS resources may be configured for a terminal having a 3-transmit antenna such that the terminal having the 3-transmit antenna can transmit SRS through 3 SRS ports.

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

According to the embodiment of the application, the 3-port SRS resource can be realized based on different resource combinations. The SRS resources constituting each resource combination already have well-defined, structural, and parameters, and thus, there is no need to redesign the structure and parameters of the 3-port SRS resources. This greatly simplifies the implementation of the 3-port SRS resource.

In combination with some embodiments of the first aspect, in some embodiments, the SRS resource set may include at least one SRS resource subset, each SRS resource subset corresponding to one 3-port SRS resource; wherein the first configurations of the different SRS resource subsets are different in the SRS resource set, the first configurations including at least one of: spatially related information, transmission configuration information (transmission configuration indicator, TCI) status.

According to an embodiment of the present application, the spatial direction may be configured for the SRS resource subset by at least one of the spatial related information and the TCI state. As such, different 3-port SRS resources in different SRS resource subsets may be configured to correspond to different spatial directions.

In combination with some embodiments of the first aspect, in some embodiments, the different SRS resource subsets may comprise the same SRS resource combination.

With reference to some embodiments of the first aspect, in some embodiments, the number of at least one SRS resource subset may be less than or equal to 2.

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

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

With reference to some embodiments of the first aspect, in some embodiments, the first information may include a first cell, where the first cell is used to configure the SRS port number to be 3; wherein the first cell may be associated with at least one of: the SRS resource set, the at least one subset of resources.

With reference to some embodiments of the first aspect, in some embodiments, the first information may include a second cell, the second cell being configured to function as a codebook; wherein the second cell is associated with at least one of: a set of SRS resources, at least one subset of SRS resources, SRS resources in each subset of SRS resources.

With reference to some embodiments of the first aspect, in some embodiments, the first information may include a third cell, the third cell being configured for the first resource type; wherein the third cell is associated with at least one of: a set of SRS resources, at least one subset of SRS resources, SRS resources in each subset of SRS resources.

With reference to some embodiments of the first aspect, in some embodiments, the number of SRS resource sets may be at least one, each SRS resource set corresponding to one 3-port SRS resource; wherein the first configurations of the different SRS resource sets are different, the first configurations including at least one of: spatially related information, TCI status.

According to the embodiment of the application, the spatial direction can be configured for the SRS resource set through at least one of the spatial related information and the TCI state. As such, different 3-port SRS resources in different SRS resource sets may be configured to correspond to different spatial directions.

In combination with some embodiments of the first aspect, in some embodiments, the different SRS resource sets may comprise the same SRS resource combination.

With reference to some embodiments of the first aspect, in some embodiments, the number of SRS resource sets may be less than or equal to 2.

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

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

With reference to some embodiments of the first aspect, in some embodiments, the first information may include a first cell, where the first cell is used to configure the SRS port number to be 3; wherein the first cell is associated with a set of SRS resources.

With reference to some embodiments of the first aspect, in some embodiments, the first information may include a second cell, the second cell being configured to function as a codebook; wherein the second cell is associated with at least one of: SRS resource sets, SRS resources in each SRS resource set.

With reference to some embodiments of the first aspect, in some embodiments, the first information may include a third cell, the third cell being for indicating the first resource type; wherein the third cell is associated with at least one of: SRS resource sets, SRS resources in each SRS resource set.

With reference to some embodiments of the first aspect, in some embodiments, the method may further include: and sending second information to the terminal, wherein the second information is used for indicating a first SRS resource, the first SRS resource is used for PUSCH sending based on a codebook, and the first SRS resource is a 3-port SRS resource in an SRS resource set.

In combination with some embodiments of the first aspect, in some embodiments, the first SRS resource may correspond to a subset of SRS resources.

In combination with some embodiments of the first aspect, in some embodiments, the second information may include a fourth cell, where the fourth cell is used to indicate a subset of SRS resources corresponding to the first SRS resource.

According to an embodiment of the present application, the first SRS resource may be a 3-port SRS resource corresponding to the SRS resource subset. As such, the employed 3-port SRS resources may be determined by indicating the subset of SRS resources.

In combination with some embodiments of the first aspect, in some embodiments, in a case where the number of SRS resource subsets is 1, the number of bits of the fourth cell may be 0.

With reference to some embodiments of the first aspect, in some embodiments, in a case where the number of SRS resource subsets is 2, the number of bits of the fourth cell may be 1; wherein the 2 SRS resource subsets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

With reference to some embodiments of the first aspect, in some embodiments, the 2 SRS resource subsets may include a first SRS resource subset and a second SRS resource subset; wherein a value of 0 is used to indicate a first SRS resource subset and a value of 1 is used to indicate a second SRS resource subset; or, a value of 1 is used to indicate the first SRS resource subset and a value of 0 is used to indicate the second SRS resource subset.

In combination with some embodiments of the first aspect, in some embodiments, the first SRS resource may correspond to a set of SRS resources.

In combination with some embodiments of the first aspect, in some embodiments, the second information may include a fourth cell, the fourth cell being for indicating the first SRS resource.

According to an embodiment of the present application, the first SRS resource may be a 3-port SRS resource corresponding to the SRS resource set. In this manner, the employed 3-port SRS resources may be determined by indicating the SRS resource set.

In combination with some embodiments of the first aspect, in some embodiments, in a case where the number of SRS resource sets is 1, the number of bits of the fourth cell may be 0.

With reference to some embodiments of the first aspect, in some embodiments, in a case where the number of SRS resource sets is 2, the number of bits of the fourth cell may be 1; wherein the 2 SRS resource sets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

With reference to some embodiments of the first aspect, in some embodiments, the 2 SRS resource sets include a first SRS resource set and a second SRS resource set; wherein, a value of 0 is used to indicate the first SRS resource set, and a value of 1 is used to indicate the second SRS resource set; or, a value of 1 is used to indicate the first SRS resource set and a value of 0 is used to indicate the second SRS resource set.

In a second aspect, embodiments of the present disclosure provide a communication method. The communication method may be performed by a terminal. The terminal is a 3-transmit antenna terminal. The method comprises the following steps: and receiving first information sent by the network equipment, wherein the first information is used for configuring an SRS resource set, the SRS resource set has a codebook function, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH sending based on the codebook.

With reference to some embodiments of the second aspect, in some embodiments, the 3-port SRS resource may be implemented based on one of the following SRS resource combinations: 1 port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2-port SRS resources; 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

With reference to some embodiments of the second aspect, in some embodiments, the SRS resource set may include at least one SRS resource subset, each SRS resource subset corresponding to one 3-port SRS resource; wherein the first configurations of the different SRS resource subsets are different in the SRS resource set, the first configurations including at least one of: spatially related information, transmission configuration information TCI status.

In combination with some embodiments of the second aspect, in some embodiments, the different SRS resource subsets may comprise the same SRS resource combination.

With reference to some embodiments of the second aspect, in some embodiments, the number of at least one SRS resource subset may be less than or equal to 2.

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

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

With reference to some embodiments of the second aspect, in some embodiments, the first information may include a first cell, where the first cell is used to configure the SRS port number to be 3; wherein the first cell may be associated with at least one of: the SRS resource set, the at least one subset of resources.

With reference to some embodiments of the second aspect, in some embodiments, the first information may include a second cell, the second cell being configured to function as a codebook; wherein the second cell is associated with at least one of: a set of SRS resources, at least one subset of SRS resources, SRS resources in each subset of SRS resources.

With reference to some embodiments of the second aspect, in some embodiments, the first information may include a third cell, the third cell being configured for the first resource type; wherein the third cell is associated with at least one of: a set of SRS resources, at least one subset of SRS resources, SRS resources in each subset of SRS resources.

With reference to some embodiments of the second aspect, in some embodiments, the number of SRS resource sets may be at least one, each SRS resource set corresponding to one 3-port SRS resource; wherein the first configurations of the different SRS resource sets are different, the first configurations including at least one of: spatially related information, TCI status.

In combination with some embodiments of the second aspect, in some embodiments, the different SRS resource sets may comprise the same SRS resource combination.

With reference to some embodiments of the second aspect, in some embodiments, the number of SRS resource sets may be less than or equal to 2.

With reference to some embodiments of the second aspect, in some embodiments, the time domain resources corresponding to different SRS resource sets may not overlap with each other.

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

With reference to some embodiments of the second aspect, in some embodiments, the first information may include a first cell, where the first cell is used to configure the SRS port number to be 3; wherein the first cell is associated with a set of SRS resources.

With reference to some embodiments of the second aspect, in some embodiments, the first information may include a second cell, the second cell being configured to function as a codebook; wherein the second cell is associated with at least one of: SRS resource sets, SRS resources in each SRS resource set.

With reference to some embodiments of the second aspect, in some embodiments, the first information may include a third cell, the third cell being for indicating the first resource type; wherein the third cell is associated with at least one of: SRS resource sets, SRS resources in each SRS resource set.

With reference to some embodiments of the second aspect, in some embodiments, the method may further include: and receiving second information sent by the network equipment, wherein the second information is used for indicating a first SRS resource, the first SRS resource is used for sending a PUSCH based on a codebook, and the first SRS resource is a 3-port SRS resource in an SRS resource set.

In combination with some embodiments of the second aspect, in some embodiments, the first SRS resource may correspond to a subset of SRS resources.

With reference to some embodiments of the second aspect, in some embodiments, the second information may include a fourth cell, where the fourth cell is used to indicate a subset of SRS resources corresponding to the first SRS resource.

With reference to some embodiments of the second aspect, in some embodiments, in a case where the number of SRS resource subsets is 1, the number of bits of the fourth cell may be 0.

With reference to some embodiments of the second aspect, in some embodiments, in a case where the number of SRS resource subsets is 2, the number of bits of the fourth cell may be 1; wherein the 2 SRS resource subsets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

With reference to some embodiments of the second aspect, in some embodiments, the 2 SRS resource subsets may include a first SRS resource subset and a second SRS resource subset; wherein a value of 0 is used to indicate a first SRS resource subset and a value of 1 is used to indicate a second SRS resource subset; or, a value of 1 is used to indicate the first SRS resource subset and a value of 0 is used to indicate the second SRS resource subset.

In combination with some embodiments of the second aspect, in some embodiments, the first SRS resource may correspond to a set of SRS resources.

With reference to some embodiments of the second aspect, in some embodiments, the second information may include a fourth cell, where the fourth cell is used to indicate the first SRS resource.

With reference to some embodiments of the second aspect, in some embodiments, in a case where the number of SRS resource sets is 1, the number of bits of the fourth cell may be 0.

With reference to some embodiments of the second aspect, in some embodiments, in a case where the number of SRS resource sets is 2, the number of bits of the fourth cell may be 1; wherein the 2 SRS resource sets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

With reference to some embodiments of the second aspect, in some embodiments, the 2 SRS resource sets include a first SRS resource set and a second SRS resource set; wherein, a value of 0 is used to indicate the first SRS resource set, and a value of 1 is used to indicate the second SRS resource set; or, a value of 1 is used to indicate the first SRS resource set and a value of 0 is used to indicate the second SRS resource set.

In a third aspect, embodiments of the present disclosure provide a network device. The network device includes a transceiver module. The transceiver module is configured to send first information to the terminal, wherein the terminal is a 3-transmission antenna terminal, the first information is used for configuring an SRS resource set, the SRS resource set is a codebook, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH transmission based on the codebook.

With reference to some embodiments of the third aspect, in some embodiments, the 3-port SRS resource may be implemented based on one of the following SRS resource combinations: 1 port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2-port SRS resources; 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

With reference to some embodiments of the third aspect, in some embodiments, the SRS resource set may include at least one SRS resource subset, each SRS resource subset corresponding to one 3-port SRS resource; wherein the first configurations of the different SRS resource subsets are different in the SRS resource set, the first configurations including at least one of: spatially related information, TCI status.

With reference to some embodiments of the third aspect, in some embodiments, the different SRS resource subsets may include the same SRS resource combination.

With reference to some embodiments of the third aspect, in some embodiments, the number of at least one SRS resource subset may be less than or equal to 2.

With reference to some embodiments of the third aspect, in some embodiments, in the SRS resource set, time domain resources corresponding to different SRS resource subsets may not overlap with each other.

With reference to some embodiments of the third aspect, in some embodiments, in an SRS resource combination of each SRS resource subset, a number of symbols occupied by different SRS resources may be the same, and occupied symbols may be the same or completely different.

With reference to some embodiments of the third aspect, in some embodiments, the first information may include a first cell, where the first cell is used to configure the SRS port number to be 3; wherein the first cell may be associated with at least one of: the SRS resource set, the at least one subset of resources.

With reference to some embodiments of the third aspect, in some embodiments, the first information may include a second cell, the second cell being configured to function as a codebook; wherein the second cell is associated with at least one of: a set of SRS resources, at least one subset of SRS resources, SRS resources in each subset of SRS resources.

With reference to some embodiments of the third aspect, in some embodiments, the first information may include a third cell, the third cell being configured for the first resource type; wherein the third cell is associated with at least one of: a set of SRS resources, at least one subset of SRS resources, SRS resources in each subset of SRS resources.

With reference to some embodiments of the third aspect, in some embodiments, the number of SRS resource sets may be at least one, each SRS resource set corresponding to one 3-port SRS resource; wherein the first configurations of the different SRS resource sets are different, the first configurations including at least one of: spatially related information, TCI status.

With reference to some embodiments of the third aspect, in some embodiments, the different SRS resource sets may include the same SRS resource combination.

With reference to some embodiments of the third aspect, in some embodiments, the number of SRS resource sets may be less than or equal to 2.

With reference to some embodiments of the third aspect, in some embodiments, the time domain resources corresponding to different SRS resource sets may not overlap with each other.

With reference to some embodiments of the third aspect, in some embodiments, in SRS resource combinations of each SRS resource set, a number of symbols occupied by different SRS resources may be the same, and occupied symbols may be the same or completely different.

With reference to some embodiments of the third aspect, in some embodiments, the first information may include a first cell, where the first cell is used to configure the SRS port number to be 3; wherein the first cell is associated with a set of SRS resources.

With reference to some embodiments of the third aspect, in some embodiments, the first information may include a second cell, the second cell being configured to function as a codebook; wherein the second cell is associated with at least one of: SRS resource sets, SRS resources in each SRS resource set.

With reference to some embodiments of the third aspect, in some embodiments, the first information may include a third cell, the third cell being for indicating the first resource type; wherein the third cell is associated with at least one of: SRS resource sets, SRS resources in each SRS resource set.

With reference to some embodiments of the third aspect, in some embodiments, the transceiver module may be further configured to send second information to the terminal, where the second information is used to indicate a first SRS resource, the first SRS resource is used for PUSCH transmission based on the codebook, and the first SRS resource is a 3-port SRS resource in the SRS resource set.

With reference to some embodiments of the third aspect, in some embodiments, the first SRS resource may correspond to a subset of SRS resources.

With reference to some embodiments of the third aspect, in some embodiments, the second information may include a fourth cell, where the fourth cell is used to indicate a subset of SRS resources corresponding to the first SRS resource.

With reference to some embodiments of the third aspect, in some embodiments, in a case where the number of SRS resource subsets is 1, the number of bits of the fourth cell may be 0.

With reference to some embodiments of the third aspect, in some embodiments, in a case where the number of SRS resource subsets is 2, the number of bits of the fourth cell may be 1; wherein the 2 SRS resource subsets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

With reference to some embodiments of the third aspect, in some embodiments, the 2 SRS resource subsets may include a first SRS resource subset and a second SRS resource subset; wherein a value of 0 is used to indicate a first SRS resource subset and a value of 1 is used to indicate a second SRS resource subset; or, a value of 1 is used to indicate the first SRS resource subset and a value of 0 is used to indicate the second SRS resource subset.

With reference to some embodiments of the third aspect, in some embodiments, the first SRS resource may correspond to a set of SRS resources.

With reference to some embodiments of the third aspect, in some embodiments, the second information may include a fourth cell, where the fourth cell is used to indicate the first SRS resource.

With reference to some embodiments of the third aspect, in some embodiments, in a case where the number of SRS resource sets is 1, the number of bits of the fourth cell may be 0.

With reference to some embodiments of the third aspect, in some embodiments, in a case where the number of SRS resource sets is 2, the number of bits of the fourth cell may be 1; wherein the 2 SRS resource sets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

With reference to some embodiments of the third aspect, in some embodiments, the 2 SRS resource sets include a first SRS resource set and a second SRS resource set; wherein, a value of 0 is used to indicate the first SRS resource set, and a value of 1 is used to indicate the second SRS resource set; or, a value of 1 is used to indicate the first SRS resource set and a value of 0 is used to indicate the second SRS resource set.

In a fourth aspect, embodiments of the present disclosure provide a terminal. The terminal includes a transceiver module. The receiving and transmitting module is configured to receive first information sent by the network device, wherein the terminal is a 3-sending antenna terminal, the first information is used for configuring an SRS resource set, the function of the SRS resource set is a codebook, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH sending based on the codebook.

With reference to some embodiments of the fourth aspect, in some embodiments, the 3-port SRS resource may be implemented based on one of the following SRS resource combinations: 1 port SRS resource; 1 2-port SRS resource; 3 1-port SRS resources; 2-port SRS resources; 1-port SRS resource and 1 2-port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

With reference to some embodiments of the fourth aspect, in some embodiments, the SRS resource set may include at least one SRS resource subset, each SRS resource subset corresponding to one 3-port SRS resource; wherein the first configurations of the different SRS resource subsets are different in the SRS resource set, the first configurations including at least one of: spatially related information, transmission configuration information TCI status.

With reference to some embodiments of the fourth aspect, in some embodiments, the different SRS resource subsets may include the same SRS resource combination.

With reference to some embodiments of the fourth aspect, in some embodiments, the number of at least one SRS resource subset may be less than or equal to 2.

With reference to some embodiments of the fourth aspect, in some embodiments, in the SRS resource set, time domain resources corresponding to different SRS resource subsets may not overlap with each other.

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

With reference to some embodiments of the fourth aspect, in some embodiments, the first information may include a first cell, where the first cell is used to configure the SRS port number to be 3; wherein the first cell may be associated with at least one of: the SRS resource set, the at least one subset of resources.

With reference to some embodiments of the fourth aspect, in some embodiments, the first information may include a second cell, the second cell being configured to function as a codebook; wherein the second cell is associated with at least one of: a set of SRS resources, at least one subset of SRS resources, SRS resources in each subset of SRS resources.

With reference to some embodiments of the fourth aspect, in some embodiments, the first information may include a third cell, the third cell being configured for the first resource type; wherein the third cell is associated with at least one of: a set of SRS resources, at least one subset of SRS resources, SRS resources in each subset of SRS resources.

With reference to some embodiments of the fourth aspect, in some embodiments, the number of SRS resource sets may be at least one, each SRS resource set corresponding to one 3-port SRS resource; wherein the first configurations of the different SRS resource sets are different, the first configurations including at least one of: spatially related information, TCI status.

With reference to some embodiments of the fourth aspect, in some embodiments, the different SRS resource sets may include the same SRS resource combination.

With reference to some embodiments of the fourth aspect, in some embodiments, the number of SRS resource sets may be less than or equal to 2.

With reference to some embodiments of the fourth aspect, in some embodiments, the time domain resources corresponding to different SRS resource sets may not overlap with each other.

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

With reference to some embodiments of the fourth aspect, in some embodiments, the first information may include a first cell, where the first cell is used to configure the SRS port number to be 3; wherein the first cell is associated with a set of SRS resources.

With reference to some embodiments of the fourth aspect, in some embodiments, the first information may include a second cell, the second cell being configured to function as a codebook; wherein the second cell is associated with at least one of: SRS resource sets, SRS resources in each SRS resource set.

With reference to some embodiments of the fourth aspect, in some embodiments, the first information may include a third cell, the third cell being used to indicate the first resource type; wherein the third cell is associated with at least one of: SRS resource sets, SRS resources in each SRS resource set.

With reference to some embodiments of the fourth aspect, in some embodiments, the transceiver module may be further configured to receive second information sent by the network device, where the second information is used to indicate a first SRS resource, the first SRS resource is used for PUSCH transmission based on a codebook, and the first SRS resource is a 3-port SRS resource in an SRS resource set.

With reference to some embodiments of the fourth aspect, in some embodiments, the first SRS resource may correspond to a subset of SRS resources.

With reference to some embodiments of the fourth aspect, in some embodiments, the second information may include a fourth cell, where the fourth cell is used to indicate a subset of SRS resources corresponding to the first SRS resource.

With reference to some embodiments of the fourth aspect, in some embodiments, in a case where the number of SRS resource subsets is 1, the number of bits of the fourth cell may be 0.

With reference to some embodiments of the fourth aspect, in some embodiments, in a case where the number of SRS resource subsets is 2, the number of bits of the fourth cell may be 1; wherein the 2 SRS resource subsets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

With reference to some embodiments of the fourth aspect, in some embodiments, the 2 SRS resource subsets may include a first SRS resource subset and a second SRS resource subset; wherein a value of 0 is used to indicate a first SRS resource subset and a value of 1 is used to indicate a second SRS resource subset; or, a value of 1 is used to indicate the first SRS resource subset and a value of 0 is used to indicate the second SRS resource subset.

With reference to some embodiments of the fourth aspect, in some embodiments, the first SRS resource may correspond to a set of SRS resources.

With reference to some embodiments of the fourth aspect, in some embodiments, the second information may include a fourth cell, where the fourth cell is used to indicate the first SRS resource.

With reference to some embodiments of the fourth aspect, in some embodiments, in a case where the number of SRS resource sets is 1, the number of bits of the fourth cell may be 0.

With reference to some embodiments of the fourth aspect, in some embodiments, in a case where the number of SRS resource sets is 2, the number of bits of the fourth cell may be 1; wherein the 2 SRS resource sets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

With reference to some embodiments of the fourth aspect, in some embodiments, the 2 SRS resource sets include a first SRS resource set and a second SRS resource set; wherein, a value of 0 is used to indicate the first SRS resource set, and a value of 1 is used to indicate the second SRS resource set; or, a value of 1 is used to indicate the first SRS resource set and a value of 0 is used to indicate the second SRS resource set.

In a fifth aspect, embodiments of the present disclosure provide a network device. The terminal includes at least one processor and a memory storing instructions. The instructions, when executed by a network device, cause the network device to implement a communication method as described in any one of the first aspect and its possible implementation forms.

In a sixth aspect, embodiments of the present disclosure provide a terminal. The terminal includes at least one processor and a memory storing instructions. The instructions, when executed by a terminal, cause the terminal to implement the communication method as described in any of the second aspect and its possible embodiments.

In a seventh aspect, embodiments of the present disclosure provide a communication system. The communication system includes a terminal and a network device. The network device is configured to perform the communication method as claimed in any of the first aspect and its possible implementation forms. The terminal is configured to perform the communication method according to any of the second aspect and its possible embodiments.

In an eighth aspect, a storage medium is provided by embodiments of the present disclosure. The storage medium stores instructions. The instructions, when executed on a communication device, cause the communication device to perform the communication method according to any one of the first aspect, the second aspect and possible implementations thereof.

In a ninth aspect, embodiments of the present disclosure provide a program product. The program product, when executed by a communication device, causes the communication device to perform the communication method according to any one of the first aspect, the second aspect and possible implementations thereof.

In a tenth aspect, embodiments of the present disclosure provide a computer program. The computer program, when run on a computer, causes the computer to perform the communication method as claimed in any one of the first aspect, the second aspect and possible implementations thereof.

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 perform the communication method as claimed in any one of the first aspect, the second aspect and possible implementations thereof.

It will be appreciated that the above-described terminals, network devices, communication systems, storage media, program products, computer programs, chips, chip systems are all used to perform the communication methods provided by the embodiments of the present disclosure. Therefore, the advantages achieved by the method can be referred to as the advantages of the corresponding method, and will not be described herein.

The embodiment of the disclosure provides a communication method, a terminal, network equipment, a communication system and a storage medium. In some embodiments, terms such as a communication method, an information processing method, an information transmission method, and the like may be replaced with each other, terms such as a network element, a network device, a network function, a network entity, and the like may be replaced with each other, and terms such as a communication system, an information processing system, and the like may be replaced with each other.

The embodiments of the present disclosure are not intended to be exhaustive, but rather are exemplary of some embodiments and are not intended to limit the scope of the disclosure. In the case of no contradiction, each step in a certain embodiment may be implemented as an independent embodiment, and the steps may be arbitrarily combined, for example, a scheme in which part of the steps are removed in a certain embodiment may also be implemented as an independent embodiment, the order of the steps in a certain embodiment may be arbitrarily exchanged, and further, alternative implementations in a certain embodiment may be arbitrarily combined; furthermore, various embodiments may be arbitrarily combined, for example, some or all steps of different embodiments may be arbitrarily combined, and an embodiment may be arbitrarily combined with alternative implementations of other embodiments.

In the embodiments of the present disclosure, terms and/or descriptions in the various embodiments are consistent with each other and may be referenced to each other in the absence of a particular explanation or logic conflict, and features in the various embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

In the presently disclosed embodiments, elements that are referred to in the singular, such as "a," "an," "the," "said," etc., may mean "one and only one," or "one or more," "at least one," etc., unless otherwise indicated. For example, where an article such as "a," "an," "the," etc. is used in translation, a noun following the article may be understood as a singular expression, or as a plural expression.

In the presently disclosed embodiments, "plurality" refers to two or more than two.

In some embodiments, the terms "at least one (at least one, at least one item, at least one)", "one or more", and the like may be interchanged.

In some embodiments, "A, B" at least one of "," a and/or B "," a in one case, B in another case "," a in response to one case, B "in response to another case, etc., may include the following technical solutions, as appropriate: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments, execution is selected from a and B (a and B are selectively executed); in some embodiments a and B (both a and B are performed). Similar to the above when there are more branches such as A, B, C.

In some embodiments, the description modes such as "a or B" may include the following technical schemes according to circumstances: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments execution is selected from a and B (a and B are selectively executed). Similar to the above when there are more branches such as A, B, C.

The prefix words "first", "second", etc. in the embodiments of the present disclosure are only for distinguishing different description objects, and do not limit the location, order, priority, number, content, etc. of the description objects, and the statement of the description object refers to the claims or the description of the embodiment context, and should not constitute unnecessary limitations due to the use of the prefix words. For example, if the description object is a "field", the ordinal words before the "field" in the "first field" and the "second field" do not limit the position or the order between the "fields", and the "first" and the "second" do not limit whether the "fields" modified by the "first" and the "second" are in the same message or not. For another example, describing an object as "level", ordinal words preceding "level" in "first level" and "second level" do not limit priority between "levels". As another example, the number of descriptive objects is not limited by ordinal words, and may be one or more, taking "first device" as an example, where the number of "devices" may be one or more. Furthermore, objects modified by different prefix words may be the same or different, e.g., the description object is "a device", then "a first device" and "a second device" may be the same device or different devices, and the types may be the same or different; for another example, the description object is "information", and the "second information" and the "first information" may be the same information or different information, and the contents thereof may be the same or different.

In some embodiments, "comprising a", "containing a", "for indicating a", "carrying a", may be interpreted as carrying a directly, or as indicating a indirectly.

In some embodiments, the terms "responsive to … …", "responsive to determination … …", "in the case of … …", "at … …", "when … …", "if … …", "if … …", and the like may be interchanged.

In some embodiments, terms "greater than", "greater than or equal to", "not less than", "more than or equal to", "not less than", "above" and the like may be interchanged, and terms "less than", "less than or equal to", "not greater than", "less than or equal to", "not more than", "below", "lower than or equal to", "no higher than", "below" and the like may be interchanged.

In some embodiments, an apparatus or the like may be interpreted as an entity, or may be interpreted as a virtual, and the names thereof are not limited to the names described in the embodiments, "apparatus," "device," "circuit," "network element," "node," "function," "unit," "section," "system," "network," "chip system," "entity," "body," and the like may be replaced with each other.

In some embodiments, a "network" may be interpreted as an apparatus (e.g., access network device, core network device, etc.) contained in a network.

In some embodiments, "access network device (access network device, AN device)", "radio access network device (radio access network device, RAN DEVICE)", "Base Station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node(s)", "access point (access point)", "transmit point (transmission point, TP)", "Receive Point (RP)", "transmit and/or receive point (transmit/receive point), the terms TRP), panel, antenna panel (ANTENNA PANEL), antenna array (ANTENNA ARRAY), cell (cell), macro cell (macro cell), small cell (SMALL CELL), femto cell (femto cell), pico cell, sector (sector), cell group (cell group), serving cell, carrier, component carrier (component carrier), bandwidth part (BWP) and the like may be replaced with each other.

In some embodiments, terms such as "terminal" (terminal) "," terminal device (TERMINAL DEVICE) "," User Equipment (UE) "," user terminal "(MS)", "Mobile Station (MS)", mobile Terminal (MT) ", subscriber station (subscriber station), mobile unit (mobile unit), subscriber unit (subsumer unit), wireless unit (wireless unit), remote unit (remote unit), mobile device (mobiledevice), wireless device (WIRELESS DEVICE), wireless communication device (wireless communication device), remote device (remote device), mobile subscriber station (mobile subscriber station), access terminal (ACCESS TERMINAL), mobile terminal (mobile terminal), wireless terminal (WIRELESS TERMINAL), remote terminal (remote terminal), handheld device (handset), mobile agent (user agent), mobile client (mobile client), client (client), and the like may be substituted for one another.

In some embodiments, the access network device, core network device, or network device may be replaced with a terminal. For example, the embodiments of the present disclosure may also be applied to a configuration in which an access network device, a core network device, or communication between a network device and a terminal is replaced with communication between a plurality of terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), or the like). In this case, the terminal may have all or part of the functions of the access network device. In addition, terms such as "uplink", "downlink", and the like may be replaced with terms corresponding to communication between terminals (e.g., "side)". For example, uplink channels, downlink channels, etc. may be replaced with side-uplink channels, uplink, downlink, etc. may be replaced with side-downlink channels.

In some embodiments, the terminal may be replaced with 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 all or part of the functions of the terminal.

In some embodiments, the acquisition of data, information, etc. may comply with laws and regulations of the country of locale.

In some embodiments, data, information, etc. may be obtained after user consent is obtained.

Furthermore, each element, each row, or each column in the tables of the embodiments of the present disclosure may be implemented as a separate embodiment, and any combination of elements, any rows, or any columns may also be implemented as a separate embodiment.

Fig. 1 is a schematic architecture diagram of a communication system provided according to an embodiment of the present disclosure. As shown in fig. 1, a communication system 100 includes a terminal 101 and a network device 102.

In some embodiments, the terminal 101 includes at least one of, for example, a mobile phone (mobile phone), a wearable device, an internet of things (internet of things, ioT) device, a communication enabled car, a smart car, a tablet (Pad), a wireless transceiver enabled computer, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (SMART GRID), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (SMART CITY), a wireless terminal device in smart home (smart home), but is not limited thereto.

In some embodiments, the network device 102 may be, for example, a node or device that accesses a terminal to a wireless network, and the network device may include at least one of an evolved NodeB (eNB), a next generation evolved NodeB (next generation eNB, ng-eNB), a next generation NodeB (gNB), a NodeB (node B, NB), a Home NodeB (HNB), a home NodeB (home evolved nodeB, heNB), a wireless backhaul device, a wireless network controller (radio network controller, RNC), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a baseband unit (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, an access node in a Wi-Fi system, but is not limited thereto.

In some embodiments, the technical solutions of the present disclosure may be applied to an Open RAN architecture, where an interface in a network device according to the embodiments of the present disclosure may be an internal interface of the Open RAN, and flow and information interaction between these internal interfaces may be implemented by software or a program.

In some embodiments, the network device 102 may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split the protocol layers of the network device, where functions of part of the protocol layers are centrally controlled by the CU, and functions of part or all of the remaining protocol layers are distributed in the DU, and the DU is centrally controlled by the CU, but is not limited thereto.

In some embodiments, the network device 102 may be one device or may be multiple devices or groups of devices. Network device 102 may be virtual or physical.

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art may know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are applicable to similar technical problems.

The embodiments of the present disclosure described below may be applied to the communication system 100 shown in fig. 1, or a part of the main body, but are not limited thereto. The respective bodies shown in fig. 1 are examples, and the communication system may include all or part of the bodies in fig. 1, or may include other bodies than fig. 1, and the number and form of the respective bodies are arbitrary, and the connection relationship between the respective bodies is examples, and the respective bodies may be not connected or may be connected, and the connection may be arbitrary, direct connection or indirect connection, or wired connection or wireless connection.

Embodiments of the present disclosure may be applied to long term evolution (Long Term Evolution, LTE), LTE-Advanced (LTE-a), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, fourth generation mobile communication system (4th generation mobile communication system,4G)), fifth generation mobile communication system (5th generation mobile communication system,5G), 5G New air interface (New Radio, NR), future Radio access (Future Radio Access, FRA), new Radio access technology (New-Radio Access Technology, RAT), new Radio (New Radio, NR), new Radio access (New Radio access, NX), future generation Radio access (Future generation Radio access, FX), global System for Mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (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)), land public mobile network (Public Land Mobile Network, PLMN) network, device-to-Device (D2D) system, machine-to-machine (Machine to Machine, M2M) system, internet of things (Internet of Things, ioT) system, vehicle-to-eventing (V2X), system utilizing other communication methods, next generation system extended based on them, and the like. In addition, a plurality of system combinations (e.g., LTE or a combination of LTE-a and 5G, etc.) may be applied.

In the communication system, the terminal may transmit an SRS to the access network device, thereby acquiring uplink channel quality. The SRS resources used by the terminal to transmit SRS may be configured by the access network device. The access network device may send configuration information to the terminal to configure SRS resources.

The terminal may have one or more antenna ports, and the terminal may transmit SRS through the one or more antenna ports. In this case, SRS resources configured by the access network device for the terminal may correspond to the number of antenna ports of the terminal. More specifically, the 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 SRS resources may be 1, 2, 4, 8, etc. In some embodiments, the number of SRS Ports may be configured by high-level parameters nrofSRS-Ports in the configuration information.

The SRS resources may occupy one or more symbols (e.g., orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols) in the time domain. Symbols occupied by SRS resources may be consecutive in the time domain. In some embodiments, the number of symbols that the available time domain resources, i.e., SRS resources, may occupy may be 1,2, 4,8, 10, 12, 14, etc. In some embodiments, the number of symbols occupied by SRS resources may be configured by higher layer parameters nrofSymbol in the configuration information. In some embodiments, the position of the start symbol of the SRS resource may be 0, 1,2, 3,4, 5, etc. In some embodiments, the location of the start symbol of the SRS resource may be configured by a higher layer parameter startPosition in the configuration information.

Fig. 2 is a schematic diagram of mapping of SRS resources on time-frequency domain resources. As shown in fig. 2, 3 SRS resources, that is, a first SRS resource, a second SRS resource, and a third SRS resource, are mapped on the time-frequency domain resource. The first SRS resource occupies 1 symbol in the time domain, and the symbol is the 3 rd symbol with the last symbol in the slot where the first SRS resource is located as the starting point forward number. The first SRS resource related higher layer parameters nrofSymbol and startPosition may be 1 and 3, respectively. The second SRS resource occupies 4 symbols in the time domain, and the last symbol of the second SRS resource is the 2 nd symbol of the starting point of the last symbol in the slot where the second SRS resource is located. The second SRS resource related higher layer parameters nrofSymbol and startPosition may be 4 and 2, respectively. The third SRS resource occupies 2 symbols in the time domain, and the last symbol of the third SRS resource is the 0 th symbol of the starting point forward number of the last symbol in the slot where the third SRS resource is located. The third SRS resource related higher layer parameters nrofSymbol and startPosition may be 2 and 0, respectively.

The SRS resources may be arranged in a comb-like manner in the frequency domain. That is, subcarriers occupied by one SRS resource are arranged at equal intervals. Obviously, the subcarriers occupied by one SRS resource are discontinuous. In some embodiments, the arrangement period of subcarriers occupied by SRS resources on the frequency domain may be 2, 4, etc. In some embodiments, the arrangement period of the subcarriers occupied by SRS resources on the frequency domain may be configured by a higher layer parameter transmissioncombo in the configuration information. In some embodiments, the offset of the subcarriers occupied by SRS resources in the frequency domain may be 0, 1, 2, 3, etc. In some embodiments, the offset of the subcarriers occupied by SRS resources in the frequency domain may be configured by higher layer parameters combOffset in the configuration information.

With continued reference to fig. 2, the first SRS resources are arranged in a comb shape in the frequency domain with an arrangement period of 2 and an offset of 0 of the occupied first subcarrier relative to the first subcarrier (lower edge) of the time-frequency resources. The higher layer parameters transmissioncombs and combOffset associated with the first SRS resource may be 2 and 0, respectively. Similarly, the higher-layer parameters transmissioncombs and combOffset related to the second SRS resource may be 2 and 1, respectively, and the higher-layer parameters transmissioncombs and combOffset related to the third SRS resource may be 4 and 0, respectively.

In some embodiments, mapping of 8-port SRS resources (i.e., SRS resources with 8 number of SRS ports supported) on time-frequency resources may take both time division multiplexing (time division multiplexing, TDM) and non-TDM forms. In some embodiments, whether the 8-port SRS resource is configured in a TDM manner may be configured by a higher layer parameter transmissioncombo in the configuration information. In some embodiments, for non-TDM approaches, mapping of 8-port SRS resources on time-frequency resources may be achieved by arranging different combinations of periodicity, subcarrier offset, and cyclic shift. In an example, the 8-port SRS resource related higher layer parameter transmissioncombo may be 2 and employ a different cyclic shift. In an example, the 8-port SRS resource related higher layer parameter transmissioncombo may be 4 or 8 and employ different subcarrier offsets and different cyclic shifts. In some embodiments, for TDM mode, the 8-port SRS resource may occupy multiple symbols. In an example, the 8-port SRS resource may occupy 2 symbols. At this time, 8 SRS ports corresponding to the 8-port SRS resource may be divided into 2 SRS port subsets. Each SRS port subset may include 4 SRS ports. For example, a first SRS port subset may include ports 0,1, 4, 5, and a second SRS port subset may include ports 2,3, 6, 7.

In order to implement codebook (codebook) -based uplink transmission (e.g., physical Uplink SHARED CHANNEL (PUSCH)), the SRS resource set configured for the terminal by the access network device may be adapted for codebook-based uplink transmission. One or more SRS resources may be included in the SRS resource set. After receiving the SRS transmitted by the terminal over the SRS resources, the access network device may transmit an SRS resource indication (SRS resource indication, SRI) to the terminal to indicate the selected SRS resources. Meanwhile, the access network device may determine a precoding matrix and a number of transmission layers adopted for actual transmission by the terminal, and notify the terminal by transmitting a precoding matrix indicator (TRANSMIT PRE-coding matrix indicator, TPMI) and a Rank Indicator (RI), respectively. And the terminal performs precoding on the data according to the TPMI and the RI, and adopts an antenna port corresponding to SRS resources indicated by the SRI to send the precoded data.

With the development of communication technology, a terminal may have 3 transmitting antennas. In this case, the access network device needs to be able to configure corresponding SRS resources for the terminal.

Fig. 3 is an exemplary interaction diagram of a communication method provided in accordance with an embodiment of the present disclosure. As shown in fig. 3, embodiments of the present disclosure relate to a communication method. The communication method includes steps S301 to S305. However, it should be understood that the communication method may also include only some of steps S301 to S305.

In step S301, the terminal 101 transmits capability information to the network device 102.

In some embodiments, the network device 102 may receive the capability information.

In some embodiments, the capability information may be used to indicate the capability (capability) of the terminal 101.

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

In some embodiments, the name of the capability information is not limited, and is, for example, UE capability (UE capability), UE capability information (UE capability information), UE capability indication, function information, etc., which the embodiments of the present disclosure do not specifically limit.

In some embodiments, capability information may be carried in ueCapabilityInformation cells (information element, IE).

In some embodiments, the capability information may include at least one of: SRS resource parameters, port parameters of the transmitting antennas. It will be appreciated that the capability information may also include other parameters, as the embodiments of the present disclosure are not specifically limited in this regard. For example, the terminal may hear the capability information to inform that the base station itself is a terminal with 3 transmit antennas so that the base station configures SRS resources for the 3 transmit antenna terminal.

In some embodiments, SRS resource parameters may be used to indicate parameters of terminal 101 related to SRS resources.

In some embodiments, SRS resource parameters may be carried in featureSetsUplink cells.

In some embodiments, the port parameters of the transmit antennas may be used to indicate the number of antenna ports of the transmit antennas of terminal 101. In an example, the number of antenna ports of terminal 101 may be equal to 3. In other words, the number of transmit antennas of the terminal 101 may be equal to 3.

In some embodiments, the port parameters of the transmit antennas may be carried in srs-TxSwitch cells.

In some embodiments, the capability information may be carried in upper layer signaling. For example, the higher layer signaling may be signaling in a radio resource control (radio resource control, RRC) procedure.

In some embodiments, the capability information may be carried in a UE capability information message (UECapabilityInformation message). In an example, the UE capability information message may be transmitted in an RRC procedure. In some embodiments, the UE capability information message may be sent by the terminal 101 for a UE capability information query message (UECapabilityEnquiry message) from the network device 102. In some embodiments, the UE capability information message may be actively transmitted by the terminal 101.

In some embodiments, the network device 102 may not receive the capability information.

In some embodiments, the network device 102 may not expect to receive the capability information.

In step S302, the network device 102 transmits first information to the terminal 101.

In some embodiments, the terminal 101 may receive the first information.

The network device may send the first information to the terminal based on the capability information of the terminal, although the network device may not. That is, the network device may transmit the first information to the terminal regardless of whether the terminal transmits the capability information to the network device.

In some embodiments, the first information may be used to configure a set of SRS resources. The SRS resource set includes at least one 3-port SRS resource. In some embodiments, the terminal informs the network device that the terminal itself is a 3-transmit antenna terminal, and needs to acquire the 3-port SRS resource, and the network device configures the SRS resource for the terminal through the first information. For example, the network device may configure a set of SRS resources for the terminal, where the set of SRS resources includes a plurality of SRS resources, and the SRS resources are 3-port SRS resources.

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

In some embodiments, the name of the first information is not limited, and is, for example, configuration information, SRS resource configuration information, SRS resource indication information, SRS resource parameter information, and the like, which is not particularly limited in the embodiments of the present disclosure.

In some embodiments, the first information may be carried in an SRS-Config cell.

In some embodiments, the first information may be carried in higher layer signaling. For example, the higher layer signaling may be signaling in an RRC procedure.

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

In some embodiments, the function of the SRS resource set may be a codebook. That is, the 3-port SRS resource in the SRS resource set may acquire the uplink CSI through 3 SRS ports. In some embodiments, CSI may be used for codebook-based PUSCH transmission. In other words, CSI may be used for codebook-based PUSCH transmission.

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

In some embodiments, the 3-port SRS resources may include one of the following combinations of resources: 1 port SRS resource, 12 port SRS resource, 31 port SRS resource, 2 port SRS resource, 1 port SRS resource and 12 port SRS resource, 14 port SRS resource, 18 port SRS resource. It is to be appreciated that each resource combination can be utilized to implement 3-port SRS resources and, thus, can also be referred to as SRS resource combinations. In some embodiments, the 3-port SRS resources implemented by any of the above combinations of resources may be referred to as "equivalent" 3-port SRS resources.

In some embodiments, the first information may include a first cell.

In some embodiments, the first cell may be used to indicate that the port number of the 3-port SRS resource in the SRS resource set is 3. In some embodiments, the first cell may be configured to configure the number of SRS ports associated with the set of SRS resources to 3. In an example, the first cell may be used to indicate that the number of SRS ports associated with the SRS resource set is 3. For example, the first cell may be used to directly indicate that the number of SRS ports has a value of 3. In an example, the first cell can be used to enable an SRS port number of 3 associated with the SRS resource set. For example, the first cell may be used to enable SRS port number parameters. The SRS port number parameter indicates that the SRS port number is 3. After being enabled by the first cell, the SRS port number parameter is validated.

In some embodiments, the first information may include a second cell.

In some embodiments, the second cell may be used to configure the function as a codebook.

In some embodiments, the second cell may be configured to configure the function of the SRS resource set as a codebook.

In some embodiments, the second cell may be used to indicate that the purpose of the SRS resource set is a codebook.

In some embodiments, the second cell may be a user cell. In an example, the value of the usage cell may be equal to "codebook", i.e. the indication usage is a codebook. For example, the value of the usage cell may be { beamManagement, codebook, nonCodebook, ANTENNASWITCHING }. Then, for the terminal 101, the value of the user cell in the first information may be equal to the codebook. Of course, the second cell may be other cells or signaling, which is not specifically limited in the embodiments of the present disclosure.

In some embodiments, the first information may include a third cell.

In some embodiments, the third cell may be used to configure the first resource type.

In some embodiments, the third cell may be configured to configure the resource type of the SRS resource set to be the first resource type.

In some embodiments, the resource type is used to represent the periodicity of the 3-port SRS resource.

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

In some embodiments, the resource types may include: periodic (periodic), semi-persistent, non-periodic (aperiodic)

In some embodiments, the first resource type may be one of: periodic (periodic), semi-persistent, non-periodic (aperiodic).

In some embodiments, the third cell may be resourceType cells. In one example, resourceType cells may be in the range { periodic, semi-persistent, aperiodic }. Then, for the terminal 101, the value of resourceType cells in the first information may be equal to any one of periodic, semi-PERSISTENT, APERIODIC. Of course, the third cell may be other cells or signaling, which is not specifically limited in the embodiments of the present disclosure.

In some embodiments, the first information may include a fifth cell.

In some embodiments, the fifth cell is associated with a first configuration of 3-port SRS resources. The first configuration is related to the beam direction of the 3-port SRS resource.

In some embodiments, the fifth cell may be used to indicate a beam direction of the 3-port SRS resources in the SRS resource set.

In some embodiments, the first configuration may include at least one of: spatially related information, transmission configuration information (transmission configuration information, TCI) status.

In some embodiments, the fifth cell may be used to indicate spatially related information of the 3-port SRS resource. That is, the first configuration may be spatially related information.

In some embodiments, the fifth cell may be spatialRelationInfo cells.

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

In some embodiments, the fifth cell may be a TCI-state cell.

It should be noted that, the first information may further include other information and/or cells, which are not specifically limited in the embodiments of the present disclosure.

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

It is to be appreciated that the subset of SRS resources can be defined as being in a form of resources that is intermediate to the set of SRS resources and the SRS resources. Specifically, one SRS resource set may include at least one SRS resource subset, and one SRS resource subset may include at least one SRS resource.

In some embodiments, cells corresponding to the subset of SRS resources may be disposed between cells corresponding to the set of SRS resources and cells corresponding to the SRS resources. In an example, the cell corresponding to the set of SRS resources may be an SRS-Resource cell, the cell corresponding to the SRS resources may be an SRS-Resource cell, and the cell corresponding to the subset of SRS resources may be an SRS-ResourceSubset cell. Of course, cells corresponding to the SRS resource subset may be other cells, which is not specifically limited in the embodiments of the present disclosure.

In some embodiments, the information corresponding to the SRS resource set may include identification information of the SRS resource subset. In an example, the SRS-ResourceSet cell can include an SRS-ResourceSubsetIDList cell. The SRS-ResourceSubsetIDList cell may include identification information of a subset of SRS resources in the SRS resource set. In some embodiments, the identification information of the SRS resource subset may include at least one of: index number of the SRS resource subset, identifier of the SRS resource subset.

In some embodiments, the identification information of the SRS resources may be included in the cells corresponding to the subset of SRS resources. In an example, the SRS-ResourceSubset cell may include an SRS-ResourceIDList cell. The SRS-ResourceIDList cell may include identification information of SRS resources in the SRS resource subset. In some embodiments, the identification information of the SRS resource may include at least one of: index number of SRS resource, identifier of SRS resource.

In some embodiments, the first cell may be associated with one of: SRS resource set, SRS resource subset. In some embodiments, the first cell may be disposed in a cell for a set of SRS resources. In an example, the first cell may be disposed in a cell corresponding to the SRS resource set. For example, the first cell may be provided in an SRS-resource set cell. In some embodiments, the first cell may be disposed in a cell for a subset of SRS resources. In an example, the first cell may be disposed in a cell corresponding to the subset of SRS resources. For example, the first cell may be disposed in an SRS-ResourceSubset cell.

In some embodiments, the second cell may be associated with one of: an SRS resource set, an SRS resource subset, SRS resources in the SRS resource subset. In some embodiments, the second cell may be disposed in a cell for the set of SRS resources. In an example, the second cell may be disposed in a cell corresponding to the SRS resource set. For example, the second cell may be provided in an SRS-resource set cell. In some embodiments, the second cell may be disposed in a cell for a subset of SRS resources. In an example, the second cell may be disposed in a cell corresponding to the subset of SRS resources. For example, the second cell may be disposed in an SRS-ResourceSubset cell. In some embodiments, the second cell may be disposed in a cell for SRS resources. In an example, the second cell may be disposed in a cell corresponding to the SRS resource. For example, the second cell may be provided in an SRS-Resource cell.

In some embodiments, the third cell may be associated with one of: an SRS resource set, an SRS resource subset, SRS resources in the SRS resource subset. In some embodiments, the third cell may be disposed in a cell for the set of SRS resources. In an example, the third cell may be disposed in a cell corresponding to the SRS resource set. For example, the third cell may be provided in an SRS-ResourceSet cell. In some embodiments, the third cell may be disposed in a cell for a subset of SRS resources. In an example, the third cell may be disposed in a cell corresponding to the subset of SRS resources. For example, the third cell may be disposed in an SRS-ResourceSubset cell. In some embodiments, the third cell may be disposed in a cell for SRS resources. In an example, the third cell may be disposed in a cell corresponding to the SRS resource. For example, the third cell may be provided in an SRS-Resource cell.

In some embodiments, the fifth cell may be associated with one of: an SRS resource set, an SRS resource subset, SRS resources in the SRS resource subset. In some embodiments, the fifth cell may be disposed in a cell for the set of SRS resources. In an example, the fifth cell may be disposed in a cell corresponding to the SRS resource set. For example, the fifth cell may be provided in an SRS-resource set cell. In some embodiments, the fifth cell may be disposed in a cell for the subset of SRS resources. In an example, the fifth cell may be disposed in a cell corresponding to the subset of SRS resources. For example, the fifth cell may be set in the SRS-ResourceSubset cell. In some embodiments, the fifth cell may be provided in a cell for SRS resources. In an example, the fifth cell may be disposed in a cell corresponding to the SRS resource. For example, the fifth cell may be provided in an SRS-Resource cell.

In some embodiments, different subsets of SRS resources in the SRS resource set may correspond to different beam directions. That is, different 3-port SRS resources in the SRS resource set may correspond to different beam directions. In some embodiments, fifth cells associated with different SRS resource subsets in the SRS resource set may have different values, thereby configuring different beam directions for the different SRS resource subsets.

In some embodiments, the number of SRS resource subsets in the SRS resource set may be 1 or 2. It is to be appreciated that in some cases, the number of SRS resource subsets in the SRS resource set may be greater than 2, as the embodiments of the present disclosure are not particularly limited in this regard.

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

In some embodiments, the subset of SRS resources may include 1 2-port SRS resources. In this case, the resource configuration of the 3-port SRS resources in one SRS resource subset may be 1 2-port SRS resource. In other words, the 3-port SRS resources in one SRS resource subset may be implemented based on1 2-port SRS resource.

In some embodiments, the SRS resource subset may include 1 3-port SRS resource. In this case, the resource configuration of the 3-port SRS resources in one SRS resource subset may be 1 3-port SRS resource. In other words, the 3-port SRS resources in one SRS resource subset may be implemented based on1 3-port SRS resource.

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

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

In some embodiments, the subset of SRS resources may include 1 4-port SRS resource. In this case, the resource configuration of the 3-port SRS resources in one SRS resource subset may be 1 4-port SRS resource. In other words, the 3-port SRS resources in one SRS resource subset may be implemented based on1 4-port SRS resource.

In some embodiments, the SRS resource subset may include 1 8-port SRS resource. In this case, the resource configuration of the 3-port SRS resources in one SRS resource subset may be 1 8-port SRS resource. In other words, the 3-port SRS resources in one SRS resource subset may be implemented based on1 8-port SRS resource.

In some embodiments, 2 subsets of SRS resources in the SRS resource set may employ the same combination of resources. In other words, the resource combinations corresponding to the 3-port SRS resources in the 2 SRS resource subsets may be the same. In an example, each of the 2 SRS resource subsets may include 1 3-port SRS resource. In an example, each of the 2 SRS resource subsets may include 1-port SRS resource and 1 2-port SRS resource. In some embodiments, the 2 SRS resource subsets may employ different combinations of resources. In other words, the resource combinations corresponding to the 3-port SRS resources in the 2 SRS resource subsets may be different. In an example, among the 2 SRS resource subsets, one SRS resource subset may include 1-port SRS resource and 1-2-port SRS resource, and another SRS resource subset may include 2-port SRS resources.

In some embodiments, there may be no overlap between time domain resources corresponding to different subsets of SRS resources in the SRS resource set. That is, symbols occupied in the time domain by different SRS resource subsets may be completely different among SRS resource sets. For example, among 2 SRS resource subsets of the SRS resource set, one SRS resource subset may occupy the 2 nd, 3 rd symbol of the 6 available symbols, and another SRS resource subset may occupy the 4 th, 5 th symbol of the 6 available symbols. For example, among 2 SRS resource subsets of the SRS resource set, one SRS resource subset may occupy a 3 rd symbol of 6 available symbols, and another SRS resource subset may occupy a 4 th symbol of 6 available symbols.

In some embodiments, the time domain resources corresponding to different SRS resources in the resource combinations of one SRS resource subset may be the same or non-overlapping. In some embodiments, the time domain resources corresponding to different SRS resources in the resource combination may be the same. In some embodiments, in the resource combinations of one SRS resource subset, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be the same. For example, the resource combination of the SRS resource subset may include 3 1-port SRS resources, each 1-port SRS resource may occupy a 3 rd symbol of the 6 available symbols. For example, the resource combination of the SRS resource subset may include 2-port SRS resources, each 2-port SRS resource may occupy a 3 rd, 4 th symbol of the 6 available symbols. In some embodiments, there may be no overlap between time domain resources corresponding to different SRS resources in a combination of resources. That is, the time domain resources corresponding to the different SRS resources may be completely different from each other. In some embodiments, in one SRS resource subset resource combination, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be completely different. For example, the resource combination of the SRS resource subset may include 3 1-port SRS resources, and the 3 1-port SRS resources may occupy a 3 rd symbol, a 4 th symbol, and a 5 th symbol of 6 available symbols, respectively. In some embodiments, in the resource combinations of one SRS resource subset, the number of symbols occupied by different SRS resources may be different, and the occupied symbols may be completely different. For example, the resource combination of the SRS resource subset may include 1-port SRS resource and 1 2-port SRS resource, the 1-port SRS resource may occupy a 3 rd symbol of the 6 available symbols, and the 2-port SRS resource may occupy a 5 th, 6 th symbol of the 6 available symbols.

In some embodiments, different SRS resource subsets may correspond to disparate symbols, and different SRS resources within one SRS resource subset may correspond to the same symbol. For example, in the SRS resource set, the resource combination of one SRS resource subset may be 3 1-port SRS resources, and the resource combination of another SRS resource subset may be 2-port SRS resources. Each 1-port SRS resource may occupy a 4 th symbol of the 6 available symbols. Each 2-port SRS resource may occupy the 5 th and 6 th symbols of the 6 available symbols.

In some embodiments, the different SRS resource subsets may correspond to disparate symbols, and the different SRS resources within one SRS resource subset may correspond to disparate symbols. For example, in the SRS resource set, the resource combination of one SRS resource subset may be 1-port SRS resource and 1 2-port SRS resource, and the resource combination of the other SRS resource subset may be 1 4-port SRS resource. The 1-port SRS resource may occupy a 4 th symbol of the 6 available symbols. The 2-port SRS resource may occupy the 5 th and 6 th symbols of the 6 available symbols. The 4-port SRS resource may occupy the 2 nd, 3 rd of the 6 available symbols.

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

In some embodiments, the information corresponding to the SRS resource set may include identification information of the SRS resource. In an example, the SRS-ResourceSet cell can include an SRS-ResourceIDList cell. The SRS-ResourceIDList cell may include identification information of SRS resources in the SRS resource set. In some embodiments, the identification information of the SRS resource may include at least one of: index number of SRS resource, identifier of SRS resource.

In some embodiments, the first cell may be associated with a set of SRS resources. In some embodiments, the first cell may be disposed in a cell for a set of SRS resources. In an example, the first cell may be disposed in a cell corresponding to the SRS resource set. For example, the first cell may be provided in an SRS-resource set cell.

In some embodiments, the second cell may be associated with one of: SRS resource set, SRS resource in SRS resource set. In some embodiments, the second cell may be disposed in a cell for the set of SRS resources. In an example, the second cell may be disposed in a cell corresponding to the SRS resource set. For example, the second cell may be provided in an SRS-resource set cell. In some embodiments, the second cell may be disposed in a cell for SRS resources. In an example, the second cell may be disposed in a cell corresponding to the SRS resource. For example, the second cell may be provided in an SRS-Resource cell.

In some embodiments, the third cell may be associated with one of: SRS resource set, SRS resource in SRS resource set. In some embodiments, the third cell may be disposed in a cell for the set of SRS resources. In an example, the third cell may be disposed in a cell corresponding to the SRS resource set. For example, the third cell may be provided in an SRS-ResourceSet cell. In some embodiments, the third cell may be disposed in a cell for SRS resources. In an example, the third cell may be disposed in a cell corresponding to the SRS resource. For example, the third cell may be provided in an SRS-Resource cell.

In some embodiments, the fifth cell may be associated with one of: SRS resource set, SRS resource in SRS resource set. In some embodiments, the fifth cell may be disposed in a cell for the set of SRS resources. In an example, the fifth cell may be disposed in a cell corresponding to the SRS resource set. For example, the fifth cell may be provided in an SRS-resource set cell. In some embodiments, the fifth cell may be provided in a cell for SRS resources. In an example, the fifth cell may be disposed in a cell corresponding to the SRS resource. For example, the fifth cell may be provided in an SRS-Resource cell.

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

In some embodiments, the number of SRS resource sets may be 1 or 2. It is to be appreciated that in some cases, the number of SRS resource subsets in the SRS resource set may be greater than 2, as the embodiments of the present disclosure are not particularly limited in this regard.

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

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

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

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

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

In some embodiments, the SRS resource set may include 1 4-port SRS resource. In this case, the resource configuration of the 3-port SRS resources in one SRS resource set may be 1 4-port SRS resource. In other words, the 3-port SRS resources in one SRS resource set may be implemented based on 1 4-port SRS resource.

In some embodiments, the SRS resource set may include 1 8-port SRS resource. In this case, the resource configuration of the 3-port SRS resources in one SRS resource set may be 1 8-port SRS resource. In other words, the 3-port SRS resources in one SRS resource set may be implemented based on 1 8-port SRS resource.

In some embodiments, the 2 SRS resource sets may employ the same combination of resources. In other words, the resource combinations corresponding to the 3-port SRS resources in the 2 SRS resource sets may be the same. In an example, each of the 2 SRS resource sets may include 1 3-port SRS resource. In an example, each of the 2 SRS resource sets may include 1-port SRS resource and 1 2-port SRS resource. In some embodiments, the 2 SRS resource sets may employ different combinations of resources. In other words, the resource combinations corresponding to the 3-port SRS resources in the 2 SRS resource sets may be different. In an example, among the 2 SRS resource sets, one SRS resource set may include 1-port SRS resource and 1-2-port SRS resource, and another SRS resource set may include 2-port SRS resources.

In some embodiments, there may be no overlap between time domain resources corresponding to different SRS resource sets. That is, symbols occupied by different SRS resource sets in the time domain may be completely different. For example, one SRS resource set may occupy 2 nd and 3 rd symbols among 6 available symbols, and another SRS resource set may occupy 4 th and 5 th symbols among 6 available symbols. For example, one SRS resource set may occupy a 3 rd symbol of 6 available symbols, and another SRS resource set may occupy a 4 th symbol of 6 available symbols, among 2 SRS resource sets.

In some embodiments, the time domain resources corresponding to different SRS resources in the resource combinations of one SRS resource set may be the same or non-overlapping. In some embodiments, the time domain resources corresponding to different SRS resources in the resource combination may be the same. In some embodiments, in a combination of resources of one SRS resource set, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be the same. For example, the resource combination of the SRS resource set may include 3 1-port SRS resources, each 1-port SRS resource may occupy a 3 rd symbol of the 6 available symbols. For example, the resource combination of the SRS resource set may include 2-port SRS resources, each 2-port SRS resource may occupy a 3 rd, 4 th symbol of the 6 available symbols. In some embodiments, there may be no overlap between time domain resources corresponding to different SRS resources in a combination of resources. That is, the time domain resources corresponding to the different SRS resources may be completely different from each other. In some embodiments, in the resource combinations of one SRS resource set, the number of symbols occupied by different SRS resources may be the same, and the occupied symbols may be different. For example, the resource combination of the SRS resource set may include 3 1-port SRS resources, and the 3 1-port SRS resources may occupy a 3 rd symbol, a 4 th symbol, and a 5 th symbol of 6 available symbols, respectively. In some embodiments, in the resource combinations of one SRS resource set, the number of symbols occupied by different SRS resources may be different, and the occupied symbols may be different. For example, the resource combination of the SRS resource set may include 1-port SRS resource and 1 2-port SRS resource, the 1-port SRS resource may occupy a 3 rd symbol of the 6 available symbols, and the 2-port SRS resource may occupy a 5 th, 6 th symbol of the 6 available symbols.

In some embodiments, different SRS resource sets may correspond to disparate symbols, and different SRS resources within one SRS resource set may correspond to the same symbol. For example, the resource combination of one SRS resource set may be 3 1-port SRS resources and the resource combination of another SRS resource set may be 2-port SRS resources. Each 1-port SRS resource may occupy a 4 th symbol of the 6 available symbols. Each 2-port SRS resource may occupy the 5th and 6 th symbols of the 6 available symbols.

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

In step S303, the terminal 101 transmits the SRS to the network device 102.

In some embodiments, terminal 101 may transmit SRS over configured 3-port SRS resources.

In some embodiments, the SRS may be transmitted through 3 transmit antennas of terminal 101. The 3 transmit antennas may correspond to 3 SRS ports of the 3-port SRS resource.

In some embodiments, network device 102 may receive the SRS.

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

In some embodiments, the number of configured 3-port SRS resources may be 1. In an example, 1 subset of SRS resources may be configured, which may be configured with 1 3-port SRS resources. In an example, 1 SRS resource set may be configured that includes 1 3-port SRS resource. In this case, the SRS may be transmitted in a beam direction corresponding to the 3-port SRS resource.

In some embodiments, the number of configured 3-port SRS resources may be 2. In an example, 2 SRS resource subsets may be configured, each of which may be configured with 1 3-port SRS resource. In an example, 2 SRS resource sets may be configured, each SRS resource set including 1 3-port SRS resource. In this case, the 2 3-port SRS resources may correspond to different beam directions. The SRS may be transmitted in different beam directions.

In step S304, the network device 102 transmits the second information to the terminal 101.

In some embodiments, the terminal 101 may receive the second information.

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

In some embodiments, the name of the second information is not limited, and may be, for example, resource indication information, resource scheduling information, SRS resource indication information, and the like.

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

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

In some embodiments, the second information may include a fourth cell.

In some embodiments, the fourth cell may be used to indicate the first SRS resource.

In some embodiments, the fourth cell may be used to indicate a first SRS resource for PUSCH transmission based on the codebook, the first resource being a 3-port SRS resource in the SRS resource set.

In some embodiments, the fourth cell may be an SRS resource indication.

In some embodiments, the fourth cell may be SRI (SRS resource indicator) cells.

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

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

In some embodiments, the SRS resource set may include 2 SRS resource subsets. Each SRS resource subset may include 1 3-port SRS resource. In this case, the number of 3-port SRS resources configured in step S302 may be 2. The number of bits of the fourth cell may be 1. Different values of the fourth cell may be used to indicate 3-port SRS resources in different SRS resource subsets. In an example, the value of the fourth cell is "0", which may indicate the 3-port SRS resource in the first SRS resource subset; the value of the fourth cell is "1", and may indicate the 3-port SRS resource in the second SRS resource subset. In an example, the value of the fourth cell is "1", which may indicate the 3-port SRS resource in the first SRS resource subset; the value of the fourth cell is "0", and may indicate the 3-port SRS resource in the second SRS resource subset.

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

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

In some embodiments, the number of SRS resource sets may be 2. Each SRS resource set may include 1 3-port SRS resource. In this case, the number of 3-port SRS resources configured in step S302 may be 2. The number of bits of the fourth cell may be 1. Different values of the fourth cell may be used to indicate 3-port SRS resources in different SRS resource sets. In an example, if the value of the fourth cell is "0", the 3-port SRS resource in the first SRS resource set may be indicated; the value of the fourth cell is "1", and may indicate the 3-port SRS resource in the second SRS resource set. In an example, if the value of the fourth cell is "1", the 3-port SRS resource in the first SRS resource set may be indicated; the value of the fourth cell is "0", and may indicate the 3-port SRS resource in the second SRS resource set.

In some embodiments, network device 102 may obtain uplink CSI based on SRS transmitted by terminal 101 through 3 SRS ports.

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

In some embodiments, the network device 102 may evaluate the quality of the uplink channel corresponding to 3 SRS ports of the 3-port SRS resource based on the CSI, and determine the first resource according to the evaluation result.

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

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

In step S305, the terminal 101 transmits PUSCH to the network device 102.

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

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

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

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

In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "instruction", "command", "channel", "parameter", "field", "symbol", "codebook", "code word", "code point", "codepoint", "bit", "data", "program", "chip", and the like may be replaced with each other.

In some embodiments, the terms "codebook", "codeword", "precoding matrix" and the like may be interchanged. For example, a codebook may be a collection of one or more codewords/precoding matrices.

In some embodiments, terms such as "uplink," "physical uplink," and the like may be interchanged, terms such as "downlink," "physical downlink," and the like may be interchanged, terms such as "side," "side link," "side communication," "side link," "direct link," and the like may be interchanged.

In some embodiments, terms of "DCI", "Downlink (DL) allocation", "DL DCI", "Uplink (UL) grant", "UL DCI", etc. may be replaced with each other.

In some embodiments, terms of "physical downlink shared channel (physical downlink SHARED CHANNEL, PDSCH)", "DL data", etc. may be interchanged, and terms of "PUSCH", "UL data", etc. may be interchanged.

In some embodiments, terms such as "radio," "wireless," "radio access network," "RAN," and "RAN-based" may be used interchangeably.

In some embodiments, terms such as "time of day," "point of time," "time location," and the like may be interchanged, and terms such as "duration," "period," "time window," "time," and the like may be interchanged.

In some embodiments, terms such as "Resource Block (RB)", "physical resource block (physical resource block, PRB)", "subcarrier group (SCG)", "resource element group (resource element group, REG)", "PRB pair", "RB pair", "Resource Element (RE)", "subcarrier (sub-carrier)", and the like may be substituted for each other.

In some embodiments, "precoding (precoding)", "precoder (precoder)", "weight", "precoding weight (precoding weight)", "quasi co-location", "QCL)", "transmission configuration indication (transmission configuration indication, TCI) state", "spatial relationship", "spatial domain filter (spatial domain filter)", "transmit power (transmission power)", "phase rotation", "antenna port (antenna port)", "antenna port group (antenna port group)", "layer number (the number of layers)", "rank", "resource set", "beam width", "beam angle (beam angular degree)", "antenna (antenna)", "antenna element (ANTENNA ELEMENT)", and the like.

In some embodiments, terms such as "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "transmission time interval TIME INTERVAL, TTI", etc. may be substituted for each other.

In some embodiments, "acquire," "obtain," "receive," "transmit," "bi-directional transmit," "send and/or receive" may be used interchangeably and may be interpreted as receiving from other principals, acquiring from protocols, acquiring from higher layers, processing itself, autonomous implementation, etc.

In some embodiments, terms such as "send," "transmit," "report," "send," "transmit," "bi-directional," "send and/or receive," and the like may be used interchangeably.

In some embodiments, terms such as "specific (certain)", "predetermined", "preset", "setting", "indicating (indicated)", "certain", "arbitrary", "first", and the like may be replaced with each other, and "specific a", "predetermined a", "preset a", "set a", "indicating a", "certain a", "arbitrary a", "first a" may be interpreted as a predetermined in a protocol or the like, may be interpreted as a obtained by setting, configuring, or indicating, or the like, may be interpreted as specific a, certain a, arbitrary a, or first a, or the like, but are not limited thereto.

In some embodiments, the determination or judgment may be performed by a value (0 or 1) expressed in 1 bit, may be performed by a true-false value (boolean) expressed in true (true) or false (false), or may be performed by a comparison of values (e.g., a comparison with a predetermined value), but is not limited thereto.

In some embodiments, "not expected to receive" may be interpreted as not receiving on time domain resources and/or frequency domain resources, or as not performing subsequent processing on data or the like after the data or the like is received; "not expected to transmit" may be interpreted as not transmitting, or may be interpreted as transmitting but not expecting the receiver to respond to the transmitted content.

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

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

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

In some embodiments, reference may be made to alternative implementations described before or after the description corresponding to fig. 3.

Fig. 4 is an exemplary flowchart of a communication method provided in accordance with an embodiment of the present disclosure. As shown in fig. 4, embodiments of the present disclosure relate to a communication method. The communication method described above includes steps S401 to S405.

In step S401, capability information is transmitted.

Alternative embodiments of step S401 may refer to alternative embodiments of step S301 in fig. 3, and other relevant parts in the embodiment related to fig. 3, which are not described herein.

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

In some embodiments, the capability information may be used for the network device 102 to configure the SRS resource set, and an optional implementation manner of the capability information may be referred to as an optional implementation manner of step S302 in fig. 3, and other relevant parts in the embodiments related to fig. 3 are not described herein.

In step S402, first information is acquired.

Alternative implementations of step S402 may refer to alternative implementations of step S302 in fig. 3, and other relevant parts in the examples related to fig. 3, which are not described herein.

In some embodiments, the terminal 101 may receive the first information transmitted by the network device 102, but is not limited thereto, and may also receive the first information transmitted by other subjects.

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

In some embodiments, the first information may be determined by the network device 102 based on the capability information.

In step S403, the SRS is transmitted.

Alternative embodiments of step S403 may refer to alternative embodiments of step S303 in fig. 3, and other relevant parts in the embodiment related to fig. 3, which are not described herein.

In some embodiments, terminal 101 may transmit SRS to network device 102, but is not limited thereto, and may also transmit capability information to other principals.

In some embodiments, the SRS may be used for the network device 102 to determine the first SRS resource, and an optional implementation manner of the SRS may refer to an optional implementation manner of step S304 in fig. 3, and other relevant portions in the embodiments related to fig. 3 are not described herein.

In step S404, second information is acquired.

Alternative embodiments of step S404 may refer to alternative embodiments of step S304 in fig. 3, and other relevant parts in the examples related to fig. 3, which are not described herein.

In some embodiments, the terminal 101 may receive the second information transmitted by the network device 102, but is not limited thereto, and may also receive the first information transmitted by other subjects.

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

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

In step S405, PUSCH is transmitted.

Alternative embodiments of step S405 may refer to alternative embodiments of step S305 of fig. 3, and other relevant parts in the examples related to fig. 3, which are not described herein.

In some embodiments, the terminal 101 may transmit PUSCH to the network device 102, but is not limited thereto, and may also transmit capability information to other bodies.

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

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

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

Fig. 5 is an exemplary flowchart of a communication method provided in accordance with an embodiment of the present disclosure. As shown in fig. 5, embodiments of the present disclosure relate to a communication method. The communication method described above includes steps S501 to S505.

In step S501, capability information is acquired.

Alternative embodiments of step S501 may refer to alternative embodiments of step S301 in fig. 3, and other relevant parts in the examples related to fig. 3, which are not described herein.

In some embodiments, the network device 102 may receive the capability information transmitted by the terminal 101, but is not limited thereto, and may also receive the capability information transmitted by other bodies.

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

In some embodiments, the network device 102 may obtain capability information from a higher layer.

In some embodiments, the network device 102 may process to obtain capability information.

In some embodiments, step S510 may be omitted, and network device 102 may autonomously implement the function indicated by the capability information, or the above-described function may be a default or default.

In step S502, first information is transmitted.

Alternative embodiments of step S502 may refer to alternative embodiments of step S302 in fig. 3, and other relevant parts in the examples related to fig. 3, which are not described herein.

In some embodiments, the network device 102 may transmit the first information to the terminal 101, but is not limited thereto, and may also transmit the capability information to other bodies.

In some embodiments, the first information may be used for the terminal 101 to send SRS through an SRS port corresponding to the SRS resource set, and an optional implementation manner of the first information may refer to an optional implementation manner of step S303 in fig. 3 and other relevant parts in the embodiment related to fig. 3, which are not described herein.

In step S503, the SRS is acquired.

Alternative embodiments of step S503 may refer to alternative embodiments of step S303 in fig. 3, and other relevant parts in the embodiment related to fig. 3, which are not described herein.

In some embodiments, the network device 102 may receive the SRS transmitted by the terminal 101, but is not limited thereto, and may also receive the SRS transmitted by other bodies.

In step S504, the second information is transmitted.

Alternative implementations of step S504 may refer to alternative implementations of step S304 in fig. 3, and other relevant parts in the examples related to fig. 3, which are not described herein.

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 subjects.

In some embodiments, the second information may be used for the terminal 101 to send the PUSCH through the SRS port corresponding to the first SRS resource, and an optional implementation manner of the second information may refer to an optional implementation manner of step S304 in fig. 3 and other relevant parts in the embodiment related to fig. 3, which are not described herein.

In step S505, PUSCH is acquired.

Alternative embodiments of step S505 may refer to alternative embodiments of step S305 in fig. 3, and other relevant parts in the examples related to fig. 3, which are not described herein.

In some embodiments, the network device 102 may receive the PUSCH transmitted by the terminal 101, but is not limited thereto, and may also receive the PUSCH transmitted by other bodies.

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

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

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

Fig. 6 is an exemplary interaction diagram of a communication method provided in accordance with an embodiment of the present disclosure. As shown in fig. 6, embodiments of the present disclosure relate to a communication method. The communication method described above includes step S601.

In step S601, the network device 102 transmits first information to the terminal 101.

Alternative embodiments of step S601 may refer to alternative embodiments of step S302 in fig. 3, and other relevant parts in the examples related to fig. 3, which are not described herein.

In some embodiments, the method may include the method described in the embodiments of the terminal side, the network device side, and so on, which is not described herein.

Hereinafter, examples of the present disclosure are exemplarily described through the detailed description.

In some embodiments, support may be addedWherein/>Number of SRS ports supported. Higher layer signaling nrofSRS-Ports may add 3-port configurations.

In some embodiments, one subset of 3-port SRS resources or equivalent 3-port SRS resources may be one of the following configurations (i.e., resource combinations): one 1 or 2 port SRS resource; 3 single-port SRS resources; 2-port SRS resources; 1 single port SRS resource and 12 port SRS resource; 1 4-port SRS resource; 1 8-port SRS resource.

In one scenario, the function may be configured as one SRS resource set of the codebook, while defining an SRS resource subset, configuring one equivalent 3-port SRS resource as one SRS resource subset, and one SRS resource set may be configured with at most 2 SRS resource subsets, where different SRS resource subsets may correspond to different spatial correlation information.

In some embodiments, codebook functional parameter configurations of SRS resource sets may be configured in SRS resource subsets, and the functional parameter configurations of multiple SRS resource subsets may be the same; may also be configured in SRS resource sets.

In some embodiments, the type parameter configuration of the SRS resource set may include periodic, semi-persistent, aperiodic configuration types, and the types of the different SRS resource subsets may be the same; may also be configured in SRS resource sets.

In some embodiments, the SRS resource set may have other parameter configurations, such as period and start position in a period configuration, and the like.

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

In some embodiments, the SRI indication (i.e., second information) method may be: the SRI indicates a subset of SRS resources. N _SRS may be the number of SRS resource subsets. Specifically, the SRI indication may be found in table 1 below:

Bit field mapped to index	SRI，NSRS＝2
		0	0
1	1

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

In one scenario, the function may be configured as one SRS resource set of the codebook, while defining an SRS resource subset, configuring one equivalent 3-port SRS resource as one SRS resource subset, and one SRS resource set may be configured with at most 2 SRS resource subsets, where different SRS resource subsets correspond to different spatial correlation information.

In some embodiments, all SRS resources within a set of SRS resources are transmitted on different symbols.

In some embodiments, the SRI indication method may be: the SRI indicates a subset of SRS resources. N _SRS may be the number of SRS resource subsets.

In one scenario, the function may be configured as at most 2 SRS resource sets of the codebook, and at most one equivalent 3-port SRS resource is configured as one SRS resource in one SRS resource set, where different SRS resource sets may correspond to different spatially related information.

In some embodiments, all SRS resources within a set of SRS resources allow for simultaneous transmission on the same symbol, with SRS resources corresponding to different sets of SRS resources being transmitted on different symbols.

In some embodiments, the codebook function parameter configuration of the SRS resource set may be configured in the equivalent 3-port SRS resources, and the function parameter configurations of the plurality of equivalent SRS resources may be the same; may also be configured in SRS resource sets.

In some embodiments, the type parameter configuration of the SRS resource set may include periodic, semi-persistent, aperiodic configuration types, different equivalent 3-port SRS resource types being the same; may also be configured in SRS resource sets.

In some embodiments, the SRS resource set may have other parameter configurations, such as period and start position in a period configuration, and the like.

In some embodiments, the SRI indication method may be: SRI indicates the SRS resource set. N _SRS may be the number of SRS resource subsets. Specifically, the SRI indication may be seen in table 2 below:

Bit field mapped to index	SRI，NSRS＝2
		0	0
1	1

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

In one scenario, the function may be configured as at most 2 SRS resource sets of the codebook, where at most one equivalent 3-port SRS resource is configured in one SRS resource set as one SRS resource, and different SRS resource sets correspond to different spatially related information.

In some embodiments, different SRS resources within the same SRS resource set may only be transmitted on different symbols, and SRS resources corresponding to different resource sets may be transmitted at different time domain locations.

In some embodiments, the SRI indication method may be: the SRI indicates a subset of SRS resources. N _SRS may be the number of SRS resource subsets.

In some embodiments, the above scheme may be configured by the base station (i.e., the first information) based on the UE capability.

In the embodiments of the present disclosure, some or all of the steps and alternative implementations thereof may be arbitrarily combined with some or all of the steps in other embodiments, and may also be arbitrarily combined with alternative implementations of other embodiments.

The embodiment of the disclosure also provides a communication device for realizing any one of the above methods. For example, the embodiments of the present disclosure also provide another communication apparatus, including a unit or a module configured to implement each step performed by the terminal in any one of the above methods. For example, embodiments of the present disclosure also provide another communication apparatus including a unit or module configured to implement steps performed by the network device in any of the above methods.

It should be understood that the division of each unit or module in the above apparatus is merely a division of a logic function, and may be fully or partially integrated into one physical entity or may be physically separated when actually implemented. Furthermore, units or modules in the apparatus may be implemented in the form of processor-invoked software: the device comprises, for example, a processor, the processor being connected to a memory, the memory having instructions stored therein, the processor invoking the instructions stored in the memory to perform any of the methods or to perform the functions of the units or modules of the device, wherein the processor is, for example, a general purpose processor, such as a central processing unit (Central Processing Unit, CPU) or microprocessor, and the memory is internal to the device or external to the device. Or a unit or module in the apparatus may be implemented in the form of a hardware circuit, and the functions of some or all of the unit or module may be implemented by the design of the hardware circuit, where the hardware circuit may be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the units or modules are implemented by designing a logic relationship of elements in the circuit; for another example, in another implementation, the hardware circuit may be implemented by a programmable logic device (programmable logic device, PLD), for example, a field programmable gate array (Field Programmable GATE ARRAY, FPGA), which may include a large number of logic gates, and the connection relationship between the logic gates is configured by a configuration file, so as to implement the functions of some or all of the units or modules. All units or modules of the above device may be realized in the form of invoking software by a processor, or in the form of hardware circuits, or in part in the form of invoking software by a processor, and in the rest in the form of hardware circuits.

In the disclosed embodiment, the processor is a circuit with signal processing capability, and in one implementation, the processor may be a circuit with instruction reading and running capability, such as a central processing unit, a microprocessor, a graphics processor (graphics processing unit, GPU) (which may be understood as a microprocessor), or a digital signal processor (DIGITAL SIGNAL processor, DSP), etc.; in another implementation, the processor may perform a function through a logical relationship of hardware circuits that are fixed or reconfigurable, e.g., a hardware circuit implemented as an application specific integrated circuit or a programmable logic device, such as an FPGA. In the reconfigurable hardware circuit, the processor loads the configuration document, and the process of implementing the configuration of the hardware circuit may be understood as a process of loading instructions by the processor to implement the functions of some or all of the above units or modules. Furthermore, a hardware circuit designed for artificial intelligence may be also be considered as an ASIC, such as a neural network Processing Unit (Neural Network Processing Unit, NPU), tensor Processing Unit (Tensor Processing Unit, TPU), deep learning Processing Unit (DEEP LEARNING Processing Unit, DPU), etc.

Fig. 7A is an exemplary block diagram of a terminal provided according to an embodiment of the present disclosure. As shown in fig. 7A, the terminal 101 may include a transceiver module 7101. In some embodiments, the transceiver module 7101 may be configured to receive first information, where the first information is used to configure an SRS resource set, a function of the SRS resource set is a codebook, the SRS resource set includes 3-port SRS resources, the 3-port SRS resources are used to obtain uplink CSI through 3 SRS ports, and the uplink CSI is used for PUSCH transmission based on the codebook. In some embodiments, the transceiver module 7101 may be configured to perform at least one of the communication steps (e.g., steps S301, S302, S303, S304, S305) of transmission and/or reception performed by the terminal 101 in any of the above methods, which is not described herein.

Fig. 7B is an exemplary block diagram of a terminal provided according to an embodiment of the present disclosure. As shown in fig. 7B, the network device 102 may include a transceiver module 7201. In some embodiments, the transceiver module 7201 may be configured to transmit the first information, where the first information is used to configure an SRS resource set, the SRS resource set having a function of a codebook, the SRS resource set including 3-port SRS resources, the 3-port SRS resources being used to obtain uplink CSI through the 3 SRS ports, the uplink CSI being used for codebook-based PUSCH transmission. In some embodiments, the transceiver module 7201 may be configured to perform at least one of the communication steps (e.g., steps S301, S302, S303, S304, S305) of the sending and/or receiving performed by the network device 102 in any of the above methods, which is not described herein.

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 may be integrated. Alternatively, the transceiver module may be interchangeable with a transceiver.

Fig. 8A is a schematic structural diagram of a communication device provided according to an embodiment of the present disclosure. The communication device 8100 may be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, etc.), a chip system, a processor, etc. that supports the network device to implement any of the above methods, or a chip, a chip system, a processor, etc. that supports the terminal to implement any of the above methods. The communication device 8100 may be used to implement the method described in the above method embodiments, and reference may be made in particular to the description of the above method embodiments.

As shown in fig. 8A, communication device 8100 includes one or more processors 8101. The processor 8101 may be a general-purpose processor or a special-purpose processor, etc., and may be, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process data for the programs. Optionally, the communication device 8100 is configured to perform any of the above methods. Optionally, the one or more processors 8101 are configured to invoke instructions to cause the communication device 8100 to perform any of the above methods.

In some embodiments, communication device 8100 also includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceivers 8102 perform at least one of the communication steps (e.g., steps S301, S302, S303, S304, S305, but not limited thereto) of transmission and/or reception in the above-described method. In alternative embodiments, transceiver 8102 may include a receiver and/or a transmitter, which may be separate or integrated. Alternatively, terms such as transceiver, transceiver unit, transceiver circuit, interface, etc. may be replaced with each other, terms such as transmitter, transmitter unit, transmitter circuit, etc. may be replaced with each other, and terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

In some embodiments, communication device 8100 also includes one or more memories 8103 for storing data. Alternatively, all or part of memory 8103 may be external to communication device 8100. In alternative embodiments, communication device 8100 may include one or more interface circuits 8104. Optionally, an interface circuit 8104 is coupled to the memory 8103, the interface circuit 8104 being operable to receive data from the memory 8103 or other device, and being operable to transmit data to the memory 8103 or other device. For example, the interface circuit 8104 may read data stored in the memory 8103 and transmit the data to the processor 8101.

The communication device 8100 in the above embodiment description 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 a stand-alone device or may be part of a larger device. For example, the communication device may be: 1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem; (2) A set of one or more ICs, optionally including storage means for storing data, programs; (3) an ASIC, such as a Modem (Modem); (4) modules that may be embedded within other devices; (5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like; (6) others, and so on.

Fig. 8B is a schematic structural diagram of a chip provided according to an embodiment of the present disclosure. For the case where the communication device 8100 may be a chip or a chip system, reference may be made to a schematic structural diagram of the chip 8200 shown in fig. 8B, but is not limited thereto.

The chip 8200 includes one or more processors 8201. The chip 8200 is used to perform any of the above methods.

In some embodiments, the chip 8200 further comprises one or more interface circuits 8202. Alternatively, the terms interface circuit, interface, transceiver pin, etc. may be interchanged. In some embodiments, the chip 8200 further comprises one or more memories 8203 for storing data. Alternatively, all or part of the memory 8203 may be external to the chip 8200. Optionally, an interface circuit 8202 is coupled to the memory 8203, the interface circuit 8202 may be used to receive data from the memory 8203 or other device, and the interface circuit 8202 may be used to transmit data to the memory 8203 or other device. For example, the interface circuit 8202 may read data stored in the memory 8203 and send the data to the processor 8201.

In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., steps S301, S302, S303, S304, S305, but not limited thereto) of the above-described methods of sending and/or receiving. The interface circuit 8202 performs the communication steps such as transmission and/or reception in the above-described method, for example, by: the interface circuit 8202 performs data interaction between the processor 8201, the chip 8200, the memory 8203, or the transceiver device.

The modules and/or devices described in the embodiments of the virtual device, the physical device, the chip, etc. may be arbitrarily combined or separated according to circumstances. Alternatively, some or all of the steps may be performed cooperatively by a plurality of modules and/or devices, without limitation.

The disclosed embodiments also provide a storage medium having instructions stored thereon that, when executed on communication device 8100, cause communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Alternatively, the storage medium described above is a computer-readable storage medium, but is not limited thereto, and it may be a storage medium readable by other devices. Alternatively, the above-described storage medium may be a non-transitory (non-transitory) storage medium, but is not limited thereto, and it may also be a transitory storage medium.

The disclosed embodiments also propose a program product which, when executed by a communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the above-described program product is a computer program product.

The disclosed embodiments also propose a computer programme, which when run on a computer, causes the computer to carry out any of the above methods.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (64)

1. A method of communication performed by a network device, wherein the method comprises:

and sending first information to a terminal, wherein the terminal is a 3-sending antenna terminal, the first information is used for configuring a Sounding Reference Signal (SRS) resource set, the SRS resource set has a codebook function, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink Channel State Information (CSI) through 3 SRS ports, and the uplink CSI is used for sending Physical Uplink Shared Channel (PUSCH) based on the codebook.

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

1 port SRS resource;

1 2-port SRS resource;

3 1-port SRS resources;

2-port SRS resources;

1-port SRS resource and 1 2-port SRS resource;

1 4-port SRS resource;

1 8-port SRS resource.

3. The method of claim 1 or 2, wherein the SRS resource set comprises at least one SRS resource subset, each SRS resource subset corresponding to one 3-port SRS resource;

Wherein, in the SRS resource set, a first configuration of different SRS resource subsets is different, the first configuration including at least one of: spatially related information, transmission configuration information TCI status.

4. The method of claim 3, wherein different subsets of SRS resources comprise the same SRS resource combination.

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

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

7. The method of any of claims 3-6, wherein, in the SRS resource combinations of each SRS resource subset, different SRS resources occupy the same number of symbols and occupy the same or completely different symbols.

8. The method of any of claims 3 to 7, wherein the first information comprises a first cell configured to configure SRS port number to be 3;

Wherein the first cell is associated with at least one of: the SRS resource set, the at least one subset of resources.

9. The method of any of claims 3 to 8, wherein the first information comprises a second cell for configuring a function as a codebook;

Wherein the second cell is associated with at least one of: the set of SRS resources, the at least one subset of SRS resources, SRS resources in each subset of SRS resources.

10. The method of any of claims 3 to 9, wherein the first information comprises a third cell, the third cell being used to configure a first resource type;

wherein the third cell is associated with at least one of: the set of SRS resources, the at least one subset of SRS resources, SRS resources in each subset of SRS resources.

11. The method of claim 1 or 2, wherein the number of SRS resource sets is at least one, each SRS resource set corresponding to one 3-port SRS resource;

Wherein a first configuration of different SRS resource sets is different, the first configuration comprising at least one of: spatially related information, TCI status.

12. The method of claim 11, wherein different sets of SRS resources comprise the same SRS resource combination.

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

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

15. The method of any of claims 11-14, wherein, in SRS resource combinations of the each SRS resource set, different SRS resources occupy a same number of symbols and occupy a same or completely different symbol.

16. The method of any of claims 11 to 15, wherein the first information comprises a first cell configured to configure SRS port number to be 3;

wherein the first cell is associated with the SRS resource set.

17. The method of any of claims 11 to 16, wherein the first information comprises a second cell for configuring a function as a codebook;

Wherein the second cell is associated with at least one of: the SRS resource set, the SRS resources in each SRS resource set.

18. The method of any of claims 11 to 17, wherein the first information comprises a third cell indicating a first resource type;

Wherein the third cell is associated with at least one of: the SRS resource set, the SRS resources in each SRS resource set.

19. The method of any one of claims 1 to 18, wherein the method further comprises:

And sending second information to the terminal, wherein the second information is used for indicating a first SRS resource, the first SRS resource is used for sending a PUSCH based on a codebook, and the first SRS resource is a 3-port SRS resource in the SRS resource set.

20. The method of claim 19, wherein the first SRS resources correspond to a subset of SRS resources.

21. The method of claim 20, wherein the second information comprises a fourth cell indicating a subset of SRS resources corresponding to the first SRS resource.

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

23. The method of claim 21, wherein the number of bits of the fourth cell is 1 if the number of SRS resource subsets is 2;

Wherein 2 SRS resource subsets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

24. The method of claim 23, wherein the 2 SRS resource subsets comprise a first SRS resource subset and a second SRS resource subset;

Wherein a value of 0 is used to indicate the first subset of SRS resources and a value of 1 is used to indicate the second subset of SRS resources; or, a value of 1 is used to indicate the first subset of SRS resources and a value of 0 is used to indicate the second subset of SRS resources.

25. The method of claim 19, wherein the first SRS resource corresponds to a set of SRS resources.

26. The method of claim 25, wherein the second information comprises a fourth cell indicating the first SRS resource.

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

28. The method of claim 26, wherein the number of bits of the fourth cell is 1 if the number of SRS resource sets is 2;

Wherein 2 SRS resource sets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

29. The method of claim 28, wherein the 2 SRS resource sets comprise a first SRS resource set and a second SRS resource set;

Wherein a value of 0 is used to indicate the first SRS resource set and a value of 1 is used to indicate the second SRS resource set; or, a value of 1 is used to indicate the first SRS resource set and a value of 0 is used to indicate the second SRS resource set.

30. A communication method performed by a terminal, wherein the terminal is a 3-transmit antenna terminal, the method comprising:

And receiving first information sent by network equipment, wherein the first information is used for configuring a Sounding Reference Signal (SRS) resource set, the SRS resource set has a codebook function, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink Channel State Information (CSI) through 3 SRS ports, and the uplink CSI is used for sending a Physical Uplink Shared Channel (PUSCH) based on the codebook.

31. The method of claim 30, wherein the 3-port SRS resources are implemented based on one of the following SRS resource combinations:

1 port SRS resource;

1 2-port SRS resource;

3 1-port SRS resources;

2-port SRS resources;

1-port SRS resource and 1 2-port SRS resource;

1 4-port SRS resource;

1 8-port SRS resource.

32. The method of claim 30 or 31, wherein the SRS resource set comprises at least one SRS resource subset, each SRS resource subset corresponding to one 3-port SRS resource;

Wherein, in the SRS resource set, a first configuration of different SRS resource subsets is different, the first configuration including at least one of: spatially related information, transmission configuration information TCI status.

33. The method of claim 32, wherein different subsets of SRS resources comprise a same SRS resource combination.

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

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

36. The method of any of claims 32-35, wherein, in SRS resource combinations for each SRS resource subset, different SRS resources occupy a same number of symbols and occupy a same or completely different symbol.

37. The method of any of claims 32-36, wherein the first information comprises a first cell configured to configure SRS port number of 3;

Wherein the first cell is associated with at least one of: the SRS resource set, the at least one subset of resources.

38. The method of any of claims 32 to 37, wherein the first information comprises a second cell for configuring a function as a codebook;

Wherein the second cell is associated with at least one of: the set of SRS resources, the at least one subset of SRS resources, SRS resources in each subset of SRS resources.

39. The method of any of claims 32 to 38, wherein the first information comprises a third cell, the third cell being configured for a first resource type;

wherein the third cell is associated with at least one of: the set of SRS resources, the at least one subset of SRS resources, SRS resources in each subset of SRS resources.

40. The method of claim 30 or 31, wherein the number of SRS resource sets is at least one, each SRS resource set corresponding to one 3-port SRS resource;

Wherein a first configuration of different SRS resource sets is different, the first configuration comprising at least one of: spatially related information, TCI status.

41. The method of claim 40, wherein different sets of SRS resources comprise the same SRS resource combination.

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

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

44. The method of any of claims 40-43, wherein, in SRS resource combinations for each SRS resource set, different SRS resources occupy the same number of symbols and occupy the same or completely different symbols.

45. The method of any of claims 40-44, wherein the first information comprises a first cell configured to configure SRS port number of 3;

wherein the first cell is associated with the SRS resource set.

46. A method according to any one of claims 40 to 45, wherein the first information comprises a second cell for configuring a function as a codebook;

Wherein the second cell is associated with at least one of: the SRS resource set, the SRS resources in each SRS resource set.

47. The method of any one of claims 40 to 46, wherein the first information comprises a third cell indicating a first resource type;

Wherein the third cell is associated with at least one of: the SRS resource set, the SRS resources in each SRS resource set.

48. The method of any one of claims 30 to 47, wherein the method further comprises:

And receiving second information sent by the network equipment, wherein the second information is used for indicating a first SRS resource, the first SRS resource is used for sending a PUSCH based on a codebook, and the first SRS resource is a 3-port SRS resource in the SRS resource set.

49. The method of claim 48, wherein the first SRS resources correspond to a subset of SRS resources.

50. The method of claim 49, wherein the second information comprises a fourth cell indicating a subset of SRS resources corresponding to the first SRS resource.

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

52. The method of claim 50, wherein the number of bits of the fourth cell is 1 if the number of SRS resource subsets is 2;

Wherein 2 SRS resource subsets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

53. The method of claim 52, wherein the 2 SRS resource subsets comprise a first SRS resource subset and a second SRS resource subset;

Wherein a value of 0 is used to indicate the first subset of SRS resources and a value of 1 is used to indicate the second subset of SRS resources; or, a value of 1 is used to indicate the first subset of SRS resources and a value of 0 is used to indicate the second subset of SRS resources.

54. The method of claim 48, wherein the first SRS resource corresponds to a set of SRS resources.

55. The method of claim 54, wherein the second information comprises a fourth cell indicating the first SRS resource.

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

57. The method of claim 55, wherein the number of bits of the fourth cell is 1 if the number of SRS resource sets is 2;

Wherein 2 SRS resource sets are indicated by a value 0 and a value 1 of the fourth cell, respectively.

58. The method of claim 57, wherein the 2 SRS resource sets comprise a first SRS resource set and a second SRS resource set;

Wherein a value of 0 is used to indicate the first SRS resource set and a value of 1 is used to indicate the second SRS resource set; or, a value of 1 is used to indicate the first SRS resource set and a value of 0 is used to indicate the second SRS resource set.

59. A network device, comprising:

The receiving and transmitting module is configured to send first information to a terminal, wherein the terminal is a 3-sending antenna terminal, the first information is used for configuring a Sounding Reference Signal (SRS) resource set, the SRS resource set is a codebook, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink Channel State Information (CSI) through 3 SRS ports, and the uplink CSI is used for sending Physical Uplink Shared Channel (PUSCH) based on the codebook.

60. A terminal, comprising:

The receiving and transmitting module is configured to receive first information sent by the network equipment, wherein the terminal is a 3-sending antenna terminal, the first information is used for configuring a Sounding Reference Signal (SRS) resource set, the SRS resource set has a codebook function, the SRS resource set comprises 3-port SRS resources, the 3-port SRS resources are used for acquiring uplink Channel State Information (CSI) through 3 SRS ports, and the uplink CSI is used for sending Physical Uplink Shared Channels (PUSCH) based on the codebook.

61. A network device, comprising:

At least one processor;

a memory storing instructions;

Wherein the instructions, when executed by the network device, cause the network device to implement the communication method of any one of claims 1 to 29.

62. A terminal, comprising:

At least one processor;

a memory storing instructions;

Wherein the instructions, when executed by the terminal, cause the terminal to implement the communication method of any of claims 30 to 58.

63. A communication system, comprising:

A network device configured to implement the communication method of any one of claims 1 to 29;

A terminal configured to implement the communication method of any one of claims 30 to 58.

64. A storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method of any one of claims 1 to 58.