WO2024094048A1 - Communication method and apparatus, and device and storage medium - Google Patents

Abstract

Provided in the present disclosure are a communication method and apparatus, and a device and a storage medium. The method comprises: sending configuration information to a terminal, wherein the configuration information is used for indicating a resource set for non-codebook-based uplink transmission, the resource set comprises at least one SRS resource, and SRS resources in the resource set have at most X ports, X being a positive integer greater than or equal to 1.

Description

A communication method, device, equipment and storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202211370285.9 filed in China on November 03, 2022, the entire contents of which are incorporated herein by reference.

Technical Field

The present disclosure relates to the field of wireless communications, and in particular to a communication method, apparatus, device and storage medium.

Background technique

In the non-codebook uplink transmission scheme, the User Equipment (UE) can use the Sounding Reference Signal (SRS) Resource Indication (SRI) to determine the data precoding and the number of transmission layers.

In the related art, when the physical uplink shared channel (PUSCH) is configured as a non-codebook-based transmission mode, the UE is first required to send a channel sounding reference signal (SRS) for non-codebook-based uplink transmission, that is, the usage of the SRS resource set (SRS resource set) is configured as non-codebook. For the non-codebook uplink transmission scheme, the base station can configure a maximum of 1 SRS resource set for the UE, including 1 to 4 SRS resources, and each SRS resource is a single port.

However, as the number of data streams transmitted by UE increases, using the existing SRS resource configuration method will bring great overhead to the downlink control channel.

Summary of the invention

In view of this, the main purpose of the present disclosure is to provide a communication method, apparatus, device and storage medium.

To achieve the above objectives, the technical solution of the present disclosure is implemented as follows:

The present disclosure provides a communication method, which is applied to a network device. The method includes:

Sending configuration information to the terminal; the configuration information is used to indicate the resource for non-codebook uplink transmission Source set; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.

In the above solution, the resource set includes: at least one first SRS resource; each of the at least one first SRS resource has two or four ports.

In the above solution, the resource set includes: at least one first SRS resource and at least one second SRS resource;

Wherein, each of the at least one first SRS resource has two or four ports;

Each of the at least one second SRS resource has one or two ports.

In the above solution, the resource set includes: at least one first SRS resource, at least one second SRS resource, and at least one third SRS resource;

Wherein, each of the at least one first SRS resource has two ports;

Each of the at least one second SRS resource has a port;

Each of the at least one third SRS resource has Y ports; Y is an integer greater than 2, and Y is less than or equal to X.

In the above solution, the X is related to the number of uplink transmission streams configured for the terminal;

The sum of the number of ports of each SRS resource in the resource set is greater than or equal to the number of uplink transmission flows configured for the terminal.

In the above solution, the transmission power of each SRS port of each SRS resource in the resource set is the same.

In the above solution, the method further comprises:

Downlink control information (DCI) is sent to the terminal, where the DCI carries indication information; the indication information is used to indicate at least one SRS resource.

The present disclosure provides a communication method, which is applied to a terminal. The method includes:

Configuration information is received from a network device; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.

In the above solution, the resource set includes: at least one first SRS resource; each of the at least one first SRS resource has two or four ports.

In the above solution, the resource set includes: at least one first SRS resource and at least one second SRS resource;

Wherein, each of the at least one first SRS resource has two or four ports;

Each of the at least one second SRS resource has one or two ports.

In the above solution, the resource set includes: at least one first SRS resource, at least one second SRS resource, and at least one third SRS resource;

Wherein, each of the at least one first SRS resource has two ports;

Each of the at least one second SRS resource has a port;

Each of the at least one third SRS resource has Y ports; Y is an integer greater than 2, and Y is less than or equal to X.

In the above solution, X is related to the number of uplink transmission streams configured by the terminal;

The sum of the number of ports of each SRS resource in the resource set is greater than or equal to the number of uplink transmission flows configured for the terminal.

In the above solution, the transmission power of each SRS port of each SRS resource in the resource set is the same.

In the above solution, the method further comprises:

The transmit power of each SRS resource in the resource set is determined based on at least one of the following:

The maximum transmit power of the terminal, the open-loop power control power, the subcarrier factor, the number of resource blocks occupied by SRS, the path loss compensation coefficient of the resource set, the path loss obtained by the terminal using the reference signal resource index, and the closed-loop power control part.

In the above solution, when the number of ports of at least two SRS resources in the resource set is not equal, the method further includes:

The terminal determines the transmit power of the first target SRS resource based on at least one of the following:

The transmit power of the second target SRS resource, the number of ports of the first target SRS resource, and the number of ports of the second target SRS resource;

The transmission power of the third target SRS resource, the number of ports of the first target SRS resource, and the number of ports of the third target SRS resource;

The second target SRS resource is the SRS resource with the largest number of ports in the resource set;

The third target SRS resource is the SRS resource with the least number of ports in the resource set;

The first target SRS resource is an SRS resource with neither the largest nor the smallest number of ports in the resource set.

In the above solution, the transmission power of the second target SRS resource in the resource set is determined according to the following formula:

Among them, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; P _{O_SRS,b,f,c} ( _qs ) represents the open-loop power control power; μ represents the subcarrier factor; M _SRS,b,f,c (i) represents the number of resource blocks occupied by the second target SRS resource; α _SRS,b,f,c ( _qs ) represents the path loss compensation coefficient of the resource set; PL _b,f,c ( _qd ) represents the path loss obtained by the terminal using the reference signal resource index; hb _,f,c (i,l) represents the closed-loop power control part.

In the above solution, the transmit power of the first target SRS resource is determined according to the following formula:

Among them, N represents the number of ports of the first target SRS resource; M1 represents the number of ports of the second target SRS resource; P ^m _SRS,b,f,c (i,q _s ,l) represents the transmission power of the second target SRS resource _.

In the above solution, the transmission power of the third target SRS resource is determined according to the following formula:

Among them, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; P _{O_SRS,b,f,c} ( _qs ) represents the open-loop power control power; μ represents the subcarrier factor; M _SRS,b,f,c (i) represents the number of resource blocks occupied by the third target SRS resource; α _SRS,b,f,c ( _qs ) represents the path loss compensation coefficient of the resource set; PL _b,f,c ( _qd ) represents the path loss obtained by the terminal using the reference signal resource index; hb _,f,c (i,l) represents the closed-loop power control part.

In the above solution, the transmit power of the first target SRS resource is determined according to the following formula:

Among them, N represents the number of ports of the first target SRS resource; M2 represents the number of ports of the third target SRS resource; P ^m _SRS,b,f,c (i,q _s ,l) represents the transmission power of the third target SRS resource _.

In the above solution, the method further comprises:

A DCI is received from a network device, where the DCI carries indication information; the indication information is used to indicate at least one SRS resource.

The present disclosure provides a communication device, which is applied to a network device. The device includes:

A sending module is used to send configuration information to a terminal; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.

In the above solution, the resource set includes: at least one first SRS resource; each of the at least one first SRS resource has two or four ports.

In the above solution, the resource set includes: at least one first SRS resource and at least one second SRS resource;

Wherein, each of the at least one first SRS resource has two or four ports;

Each of the at least one second SRS resource has one or two ports.

In the above solution, the resource set includes: at least one first SRS resource, at least one second SRS resource, and at least one third SRS resource;

Wherein, each of the at least one first SRS resource has two ports;

Each of the at least one second SRS resource has a port;

Each of the at least one third SRS resource has Y ports; Y is an integer greater than 2, and Y is less than or equal to X.

In the above solution, the X is related to the number of uplink transmission streams configured for the terminal;

The sum of the number of ports of each SRS resource in the resource set is greater than or equal to the number of uplink transmission flows configured for the terminal.

In the above solution, the transmission power of each SRS port of each SRS resource in the resource set is the same.

In the above solution, the sending module is used to send DCI to the terminal, and the DCI carries indication information; the indication information is used to indicate at least one SRS resource.

The present disclosure provides a communication device, which is applied to a terminal. The device includes:

A receiving module is used to receive configuration information from a network device; the configuration information is used to indicate A resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.

In the above solution, the resource set includes: at least one first SRS resource; each of the at least one first SRS resource has two or four ports.

In the above solution, the resource set includes: at least one first SRS resource and at least one second SRS resource;

Wherein, each of the at least one first SRS resource has two or four ports;

Each of the at least one second SRS resource has one or two ports.

In the above solution, the resource set includes: at least one first SRS resource, at least one second SRS resource, and at least one third SRS resource;

Wherein, each of the at least one first SRS resource has two ports;

Each of the at least one second SRS resource has a port;

Each of the at least one third SRS resource has Y ports; Y is an integer greater than 2, and Y is less than or equal to X.

In the above solution, X is related to the number of uplink transmission streams configured by the terminal;

The sum of the number of ports of each SRS resource in the resource set is greater than or equal to the number of uplink transmission flows configured for the terminal.

In the above solution, the transmission power of each SRS port of each SRS resource in the resource set is the same.

In the above solution, the device further includes: a determination module, configured to determine the transmit power of each SRS resource in the resource set based on at least one of the following:

The maximum transmit power of the terminal, the open-loop power control power, the subcarrier factor, the number of resource blocks occupied by SRS, the path loss compensation coefficient of the resource set, the path loss obtained by the terminal using the reference signal resource index, and the closed-loop power control part.

In the above solution, when the number of ports of at least two SRS resources in the resource set is not equal, the determination module is further used to determine the transmission power of the first target SRS resource based on at least one of the following:

the transmit power of the second target SRS resource, the number of ports of the first target SRS resource, the The port number of the second target SRS resource;

The transmission power of the third target SRS resource, the number of ports of the first target SRS resource, and the number of ports of the third target SRS resource;

The second target SRS resource is the SRS resource with the largest number of ports in the resource set;

The third target SRS resource is the SRS resource with the least number of ports in the resource set;

The first target SRS resource is an SRS resource with neither the largest nor the smallest number of ports in the resource set.

In the above solution, the determining module is used to determine the transmission power of the second target SRS resource in the resource set according to the following formula:

Among them, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; P _{O_SRS,b,f,c} ( _qs ) represents the open-loop power control power; μ represents the subcarrier factor; M _SRS,b,f,c (i) represents the number of resource blocks occupied by the second target SRS resource; α _SRS,b,f,c ( _qs ) represents the path loss compensation coefficient of the resource set; PL _b,f,c ( _qd ) represents the path loss obtained by the terminal using the reference signal resource index; hb _,f,c (i,l) represents the closed-loop power control part.

In the above solution, the determining module is used to determine the transmit power of the first target SRS resource according to the following formula:

Wherein, N represents the number of ports of the first target SRS resource; M1 represents the number of ports of the second target SRS resource; and P ^m _SRS,b,f,c (i,q _s ,l) represents the transmission power of the second target SRS resource _.

In the above solution, the determining module is used to determine the transmission power of the third target SRS resource according to the following formula:

Wherein, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; _{PO_SRS,b,f,c} ( _qs ) represents the open-loop power control power; μ represents the subcarrier factor; _MSRS,b,f,c (i) represents the number of resource blocks occupied by the third target SRS resource; _αSRS,b,f,c ( _qs ) represents the path loss compensation coefficient of the resource set; _PLb,f,c ( _qd ) represents the reference utilization of the terminal The path loss obtained by the signal resource index; h _b,f,c (i,l) represents the closed-loop power control part.

In the above solution, the determining module is used to determine the transmit power of the first target SRS resource according to the following formula:

Among them, N represents the number of ports of the first target SRS resource; M2 represents the number of ports of the third target SRS resource; P ^m _SRS,b,f,c (i,q _s ,l) represents the transmission power of the third target SRS resource _.

In the above solution, the receiving module is used to receive DCI from a network device, and the DCI carries indication information; the indication information is used to indicate at least one SRS resource.

An embodiment of the present disclosure also provides a communication device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of any one of the methods described on the network device side are implemented; or, when the processor executes the program, the steps of any one of the methods described on the terminal side are implemented.

An embodiment of the present disclosure further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of any one of the methods described on the network device side are implemented; or, when the computer program is executed by a processor, the steps of any one of the methods described on the terminal side are implemented.

The embodiments of the present disclosure provide a communication method, device and storage medium, the method comprising: sending configuration information to a terminal; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set comprises: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1. In this way, by flexibly configuring the SRS resources of one or more ports, uplink transmission of more than 4 streams is achieved without significantly increasing the number of DCI bits, thereby reducing the overhead of the downlink control channel.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a flow chart of a non-codebook uplink transmission solution;

FIG2 is a flow chart of a communication method provided by an embodiment of the present disclosure;

FIG3 is a flow chart of another communication method provided by an embodiment of the present disclosure;

FIG4 is a flow chart of a method for configuring an SRS resource set for non-codebook transmission provided by an application embodiment of the present disclosure;

FIG5 is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure;

FIG6 is a schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.

Detailed ways

In the related art, a non-codebook uplink transmission method is shown in FIG1 , and the method includes:

The UE determines the precoding of the SRS based on the downlink channel estimation and sends the precoded SRS; that is, the UE measures the downlink reference signal, obtains the candidate uplink precoding matrix, uses them to precode the SRS for the non-codebook uplink transmission scheme and then sends it to the base station.

The base station detects the uplink channel according to the SRS sent by the UE, schedules the resources for the UE, determines the SRS resources corresponding to the uplink transmission and the modulation and coding scheme (MCS) level of the uplink transmission, and notifies the UE. The SRS resources corresponding to the uplink transmission are indicated to the UE through the SRI.

UE modulates and encodes the data according to the MCS sent by the base station, and uses SRI to determine the precoding and number of transmission layers of the data, and sends the data after precoding. The physical uplink shared channel (PUSCH) demodulation pilot in the non-codebook uplink transmission scheme uses the same precoding method as the PUSCH data.

The base station estimates the uplink channel based on the demodulated pilot signal and performs data detection.

Here, the base station indicates the SRS resource indication (SRS Resource Indication, SRI) through DCI, where SRI can indicate one or more SRS resources. The number of SRS resources indicated in SRI is the rank indicator (Rank indicator, RI) of PUSCH transmission, and the precoding used by the SRS resources indicated in SRI is the transmission precoding matrix indicator (Transmitting Precoding Matrix Indicator, TPMI) of the physical uplink shared channel (Physical Uplink Shared CHannel, PUSCH) transmission. The transport layer of PUSCH corresponds one-to-one to the SRS resources indicated by SRI.

Table 1 is an example of SRI indication for non-codebook based PUSCH transmission, where L _max = 2, and L _max is the maximum number of uplink transmission streams configured for the terminal.

Table 1

Among them, reserved refers to the reserved bit.

Relevant research has confirmed that for 8Tx terminal uplink transmission, 4 or more streams are required, and it can be enhanced to 8 streams at most.

For SRI non-codebook transmission, if the 8Tx terminal needs to be enhanced to 8-stream transmission, and the existing 4Tx terminal maximum 4-stream transmission design is used, then it is necessary to configure 1 SRS resource set (resource set) for non-codebook transmission. The SRS resource set contains 8 SRS resources (resource), and each SRS resource has 1 port.

Assume that the maximum number of streams L _max = 8, then for 1, 2, 3, 4, 5, 6, 7, 8 stream transmissions, there are C81+C82+C83+C84+C85+C86+C87+C88=8+28+56+70+56+28+8+1=2^8-1=255 possible SRI indication combinations. Then the SRI indication field in the DCI needs to occupy a maximum of 8 bits, which will bring great overhead to the downlink control channel.

Based on this, in the method provided by the embodiment of the present disclosure, the network device sends configuration information to the terminal; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1. Accordingly, the terminal receives the configuration information sent by the network device.

The present disclosure is further described in detail below with reference to embodiments.

FIG2 is a flow chart of a communication method provided by an embodiment of the present disclosure; as shown in FIG2 , the method can be applied to a network device, the network device is a base station, and the base station can be a global mobile A base station in a communication system (Global System for Mobile Communications, GSM) or a code division multiple access (Code Division Multiple Access, CDMA), or a base station (NodeB, NB) in a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), or a next generation base station (the next Generation Node B, gNB), or an evolved base station (Evolutional Node B, eNB), which is not limited here; the method includes:

Step 201: Send configuration information to a terminal; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.

Here, the network device configures a resource set for non-codebook uplink transmission for the terminal, and indicates the resource set through configuration information.

In some embodiments, the resource set (may also be referred to as an SRS resource set) includes: at least one first SRS resource; each of the at least one first SRS resource has two or four ports.

Here, two configuration modes of resource sets are provided, that is, each first SRS resource in the resource set has two ports; or each first SRS resource in the resource set has four ports.

In some embodiments, the resource set includes: at least one first SRS resource and at least one second SRS resource;

Wherein, each of the at least one first SRS resource has two or four ports;

Each of the at least one second SRS resource has one or two ports.

Here, multiple resource set configuration methods are provided. Specifically, in one example, each first SRS resource in the resource set has two ports, and each second SRS resource has one port;

In another example, each first SRS resource in the resource set has four ports, and each second SRS resource has one port;

In yet another example, each first SRS resource in the resource set has four ports, and each second SRS resource has two ports.

In some embodiments, the resource set includes: at least one first SRS resource, at least one second SRS resource, and at least one third SRS resource;

Wherein, each of the at least one first SRS resource has two ports;

Each of the at least one second SRS resource has a port;

Each of the at least one third SRS resource has Y ports; Y is an integer greater than 2, and Y is less than or equal to X.

Here, the resource set may include three SRS resources with different numbers of ports. The first SRS resource has two ports, the second SRS resource has one port, and the third SRS resource may have 3, 4, ..., Y ports.

In some embodiments, the X is related to the number of uplink transmission streams configured for the terminal; and the sum of the number of ports of each SRS resource in the resource set is greater than or equal to the number of uplink transmission streams configured for the terminal.

In some embodiments, the transmit power of each SRS port of each SRS resource in the resource set is the same;

The transmission power of each port of the SRS resources with a port number greater than 1 in the resource set is the same.

In some embodiments, the method further comprises: sending indication information to the terminal;

The sending of instruction information to the terminal specifically includes:

Downlink control information (DCI) is sent to the terminal, where the DCI carries indication information; the indication information is used to indicate at least one SRS resource.

Here, the network device can specify the SRS resource specifically used by the terminal through indication information. After receiving the indication information from the network device, the terminal selects the SRS resource in the resource set according to the indication information and performs data transmission according to the selected SRS resource.

Specifically, the indication information may include: an identifier or index of at least one SRS resource indicated; correspondingly, the resource set indicated by the configuration information also includes: a unique identifier or index corresponding to each SRS resource.

FIG3 is a flow chart of another communication method provided by an embodiment of the present disclosure; as shown in FIG3 , the method can be applied to a terminal, and the method includes:

Step 301, receiving configuration information from a network device; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.

Here, the network device configures a resource set for non-codebook uplink transmission for the terminal, and indicates the resource set through configuration information. The terminal receives the configuration information and determines the resource set according to the configuration information.

In some embodiments, the resource set includes: at least one first SRS resource; each of the at least one first SRS resource has two or four ports.

In some embodiments, the resource set includes: at least one first SRS resource and at least one second SRS resource;

Wherein, each of the at least one first SRS resource has two or four ports;

Each of the at least one second SRS resource has one or two ports.

In some embodiments, the resource set includes: at least one first SRS resource, at least one second SRS resource, and at least one third SRS resource;

Wherein, each of the at least one first SRS resource has two ports;

Each of the at least one second SRS resource has a port;

Each of the at least one third SRS resource has Y ports; Y is an integer greater than 2, and Y is less than or equal to X.

In some embodiments, the X is related to the number of uplink transmission streams configured for the terminal; the sum of the number of ports of each SRS resource in the resource set is greater than or equal to the number of antenna uplink transmission streams required by the terminal.

In some embodiments, the transmission power of each SRS port of each SRS resource in the resource set is the same.

In actual application, in order to ensure that the base station side can fairly measure the channel quality corresponding to each port, it is necessary to ensure that the transmission power of each port is the same, which requires that the transmission power of each port of each SRS resource is the same.

Based on this, in some embodiments, when the number of ports corresponding to each SRS resource in the resource set is equal, the method further includes:

The transmit power of each SRS resource in the resource set is determined based on at least one of the following:

The maximum transmit power of the terminal, the open-loop power control power, the subcarrier factor, the number of resource blocks occupied by SRS, the path loss compensation coefficient of the resource set, the path loss obtained by the terminal using the reference signal resource index, and the closed-loop power control part.

Here, if the number of ports of each SRS resource is the same, the transmit power of each SRS resource can be directly determined according to the following formula:

Among them, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; P _{O_SRS,b,f,c} ( _qs ) represents the open-loop power control power; μ represents the subcarrier factor; M _SRS,b,f,c (i) represents the number of resource blocks occupied by any SRS resource; α _SRS,b,f,c ( _qs ) represents the path loss compensation coefficient of the resource set; PL _b,f,c ( _qd ) represents the path loss obtained by the terminal using the reference signal resource index; h _b,f,c (i,l) represents the closed-loop power control part.

Then, the transmit power of the SRS resource is divided by the number of ports to obtain the transmit power of each port, and the transmit power of each port is the same.

In some embodiments, when the number of ports corresponding to at least two SRS resources in the resource set is not equal, the method further includes:

The terminal determines the transmit power of the first target SRS resource based on at least one of the following:

The transmit power of the second target SRS resource, the number of ports of the first target SRS resource, and the number of ports of the second target SRS resource;

The transmission power of the third target SRS resource, the number of ports of the first target SRS resource, and the number of ports of the third target SRS resource;

The second target SRS resource is the SRS resource with the largest number of ports in the resource set;

The third target SRS resource is the SRS resource with the least number of ports in the resource set;

The first target SRS resource is an SRS resource with neither the largest nor the smallest number of ports in the resource set.

Here, the port adjustment factor is used to make the transmission power of the ports of each SRS resource the same.

When applied, if the transmit power of the first target SRS resource is determined based on the transmit power of the second target SRS resource, the first target SRS resource may include an SRS resource with the least number of ports;

If the transmission power of the first target SRS resource is determined based on the transmission power of the third target SRS resource, the first target SRS resource may include an SRS resource with the largest number of ports.

In some embodiments, it is assumed that the number of ports of the second target SRS resource (i.e., the SRS resource with the largest number of ports) in the SRS resource set is M1, and if the terminal uses the SRS power control adjustment state with index 1 on the uplink activated BWP b of the carrier f of the serving cell c to send SRS at the SRS sending time i. Wherein, BWP refers to the bandwidth part (Bandwidth Part).

The transmit power of the second target SRS resource (i.e., the at least one SRS resource with the largest number of ports in the resource set) is determined according to the following formula:

Among them, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; P _{O_SRS,b,f,c} ( _qs ) represents the open-loop power control power; μ represents the subcarrier factor; M _SRS,b,f,c (i) represents the number of resource blocks occupied by the second target SRS resource; α _SRS,b,f,c ( _qs ) represents the path loss compensation coefficient of the resource set; PL _b,f,c ( _qd ) represents the path loss obtained by the terminal using the reference signal resource (the reference signal resource is associated with the second target SRS resource) index; hb _,f,c (i,l) represents the closed-loop power control part.

Accordingly, the transmit power of the first target SRS resource is determined according to the following formula:

Wherein, N represents the port number of the SRS resource; M1 represents the port number of the second target SRS resource; P ^m _SRS,b,f,c (i,q _s ,l) represents the transmission power of the second target SRS resource _.

Specifically, the transmit power of the SRS resource with the largest number of ports in the SRS resource set can be calculated first, and then the transmit power of the first target SRS resource can be calculated based on the number of ports of the first target SRS resource for which the transmit power needs to be calculated. That is, if the number of ports of a first target SRS resource is N, the transmit power of the first target SRS resource is N times the transmit power of the SRS resource with the largest number of ports. times.

In some embodiments, it is assumed that the number of ports of the third target SRS resource (i.e., the SRS resource with the least number of ports) in the SRS resource set is M2, and if the terminal uses the SRS power control adjustment state with index l on the uplink activation BWP b of the carrier f of the serving cell c to send SRS at the SRS sending time i.

The transmission power of the third target SRS resource (i.e., at least one SRS resource with the least number of ports in the resource set) is determined according to the following formula:

Wherein, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; P _{O_SRS,b,f,c} (q _s ) represents the open-loop power control control power; μ represents the subcarrier factor; M _SRS,b,f,c (i) represents the number of resource blocks occupied by the third target SRS resource; α _SRS,b,f,c (q _s ) represents the path loss compensation coefficient of the resource set; PL _b,f,c (q _d ) represents the path loss indexed by the terminal using the reference signal resource (the reference signal resource is associated with the third target SRS resource); h _b,f,c (i,l) represents the closed-loop power control part.

Accordingly, the transmit power of the first target SRS resource is determined according to the following formula:

Among them, N represents the number of ports of the first target SRS resource; M2 represents the number of ports of the third target SRS resource; P ^m _SRS,b,f,c (i,q _s ,l) represents the transmission power of the third target SRS resource _.

Specifically, the transmit power of the SRS resource with the least number of ports in the SRS resource set can be calculated first, and then the transmit power of the first target SRS resource can be calculated based on the number of ports of the first target SRS resource for which the transmit power needs to be calculated. That is, if the number of ports of a first target SRS resource is N, the transmit power of the first target SRS resource is N times the transmit power of the SRS resource with the least number of ports. times.

By determining the transmission power of each port of each SRS resource through the above method, the transmission power of each port is ensured to be the same, so that the base station side can fairly measure the channel quality corresponding to each port.

In some embodiments, the method further comprises: receiving indication information from a network device;

The receiving instruction information from the network device specifically includes:

A DCI is received from a network device, where the DCI carries indication information; the indication information is used to indicate at least one SRS resource.

Here, the network device can specify the SRS resource specifically used by the terminal through indication information. After receiving the indication information from the network device, the terminal selects the SRS resource in the resource set according to the indication information and performs data transmission according to the selected SRS resource.

Specifically, the indication information may include: an identifier or index of at least one SRS resource indicated; correspondingly, the resource set indicated by the configuration information also includes: a unique identifier or index corresponding to each SRS resource.

FIG4 is a flow chart of a method for configuring an SRS resource set for non-codebook transmission provided in an application embodiment of the present disclosure; as shown in FIG4 , the method is for an 8Tx terminal, that is, a terminal configured with The number of row transmission streams is 8; the method comprises:

Step 401: The network device configures an SRS resource set (SRS resource set) for non-codebook transmission;

In the first configuration method, the SRS resource set includes: a maximum of 4 SRS resources (resources), and each SRS resource has 2 ports (ports).

Since the number of bits occupied by SRI is only related to the number of SRS resources in the resource set, the maximum number of SRS resources in the first configuration method is consistent with the number of SRS resources used for non-codebook transmission in the existing protocol (such as R15). In this way, it can be ensured that the number of bits occupied by SRI used to indicate SRS resources for transmission of more than 8 streams in future communication protocols (such as R18) is the same as that in the relevant protocol.

The second configuration method is that the SRS resource set includes: a maximum of 4 SRS resources A (recorded as resource#A) and a maximum of 1 SRS resource B (recorded as resource#B); each resource#A has 2 ports, and resource#B has 1 port.

The second configuration method can ensure that the configured SRS resource set can support non-codebook uplink 1 stream transmission and odd stream transmission, which only brings a maximum of 1 bit of additional SRI occupancy overhead compared to the solution in the existing protocol.

The third configuration method includes: a maximum of 4 SRS resources in the SRS resource set. Assuming there are 4 SRS resources, they can be as follows:

resource#1, has 1 port;

resource#2, has 2 ports;

resource#3, has 2 ports;

resource#4, has 4 ports;

That is, the combination of the port numbers of the four SRS resources is {1,2,2,4};

In addition, the combination of the number of ports of the four SRS resources may also be {1,1,2,4}, or {1,2,4,4}.

If the number N _SRS of SRS resources in the configured SRS resource set is less than 4, then the combination of the number of ports of the N _SRS resources may be a subset of the combination of the number of ports of the above 4 SRS resources.

The third configuration method can ensure support for various numbers of streams of non-codebook uplink transmission, and does not occupy additional SRI bit overhead compared to existing protocols.

Step 402: The network device sends configuration information to the terminal, where the configuration information is used to indicate a configured SRS resource set for non-codebook transmission.

Step 403: The terminal receives the configuration information and performs data transmission according to the configuration information.

Through the method provided in the embodiment of the present disclosure, SRS resources can be flexibly and reasonably configured. Under the condition that the SRI indication overhead is not significantly increased and the DCI overhead is not significantly improved compared with the existing maximum 4-antenna uplink transmission stream, a non-codebook-based SRS resource configuration method and SRI indication for more than 4 streams under terminal 8-antenna uplink transmission is implemented.

At the same time, under the condition of ensuring that the transmission power of each port of each SRS resource is the same, the SRS resource overhead does not increase significantly compared to the existing maximum 4-antenna uplink transmission, but can further support a maximum of 8-stream uplink transmission of the terminal with 8 antennas.

In actual application, based on different SRS resource set configuration methods, there will be different SRS resource indication (SRS Resource Indication, SRI) indication methods, SRI can indicate SRS resources in the SRS resource set. The following describes the configuration methods of several SRS resource sets respectively.

An application embodiment is provided, based on the first configuration method above, according to the configured port combination of SRS resources and L _max , traverse various SRI combinations corresponding to {1, 2, 3...L _max }. The following table is an example of an SRI indication table:

Table 1-1 is a SRI indication for non-codebook based PUSCH transmission, where L _max =2.

Table 1-1

Wherein, L _max represents the maximum number of uplink transmission streams configured for the terminal, which is indicated by maxMIMO-Layers carried in the high-level parameter PUSCH-ServingCellConfig; if not configured, L _max is determined based on the maximum number of transmission streams supported by the terminal for non-codebook uplink transmission.

Bit field mapped to index means the bit field mapped to index.

SRI(s), N _SRS represents the number of SRS resources included in the SRS resource set.

reserved indicates a reserved bit.

Table 1-2 is another SRI indicator table for non-codebook based PUSCH transmission, where L _max =4.

Table 1-2

Table 1-3 is another SRI indicator table for non-codebook based PUSCH transmission, where L _max =6.

Table 1-3

Table 1-4 is another SRI indication table of non-codebook based PUSCH transmission, where L _max =8.

Table 1-4

Another application embodiment is provided, based on the second configuration method above, and according to the configured port combination of SRS resources and L _max , various SRI combinations corresponding to {1, 2, 3 . . . L _max } are traversed.

Without loss of generality, we can assume the following:

When N _SRS = 5, the port numbers corresponding to the 5 SRS resources are {1, 2, 2, 2, 2} respectively;

When N _SRS = 4, the port numbers corresponding to the 4 SRS resources are {1, 2, 2, 2} respectively;

When N _SRS = 3, the port numbers corresponding to the three SRS resources are {1, 2, 2} respectively;

When N _SRS = 2, the port numbers corresponding to the two SRS resources are {1, 2} respectively;

When N _SRS = 1, the number of ports corresponding to one SRS resource is {2} or {1};

Then, in the following cases, SRI does not occupy bits:

1) When L _max = 1, SRI does not occupy any bits;

2) When N _SRS = 1, SRI does not occupy any bits;

3) Except for the cases listed in the following table, SRI does not occupy any bits in other cases.

The following is an example of a design for an SRI instruction form:

The following Table 2-1 is a first SRI indicator table for non-codebook based PUSCH transmission, where L _max =2.

table 2-1

The following Table 2-2 is a second SRI indicator table for non-codebook based PUSCH transmission, where L _max =3.

Table 2-2

The following Table 2-3 is a third SRI indicator table for non-codebook based PUSCH transmission, where L _max =4.

Table 2-3

The following Table 2-4 is a fourth SRI indicator table for non-codebook based PUSCH transmission, where L _max =5.

Table 2-4

The following Table 2-5 is a fifth SRI indicator table for non-codebook based PUSCH transmission, where L _max =6.

Table 2-5

The following Table 2-6 is a sixth SRI indicator table for non-codebook based PUSCH transmission, where L _max =7.

Table 2-6

The following Table 2-7 is a seventh SRI indicator table for non-codebook based PUSCH transmission, where L _max =8.

Table 2-7

Another application embodiment is provided. Based on the third configuration method, various SRI combinations corresponding to {1, 2, 3 ... L _max } are traversed according to the configured port combination of SRS resources and L _max to obtain SRI indication tables under various L max and various N _SRS .

FIG5 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure; as shown in FIG5 , the device is applied to a network device, and the device includes:

A sending module is used to send configuration information to a terminal; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.

It should be noted that: the communication device provided in the above embodiment only uses the division of the above program modules as an example to illustrate when implementing the corresponding communication method. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the network device is divided into different program modules to complete all or part of the processing described above. In addition, the device provided in the above embodiment and the embodiment of the corresponding method belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

FIG6 is a schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure; as shown in FIG6 , the device is applied to a terminal, and the device includes:

A receiving module is used to receive configuration information from a network device; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.

In some embodiments, the apparatus further comprises: a determination module, configured to determine the transmit power of each SRS resource in the resource set based on at least one of the following:

The maximum transmit power of the terminal, the open-loop power control power, the subcarrier factor, the number of resource blocks occupied by SRS, the path loss compensation coefficient of the resource set, the path loss obtained by the terminal using the reference signal resource index, and the closed-loop power control part.

In some embodiments, when the number of ports of at least two SRS resources in the resource set is not equal, the determining module is further configured to determine the transmit power of the first target SRS resource based on at least one of the following:

The transmit power of the second target SRS resource, the number of ports of the first target SRS resource, and the number of ports of the second target SRS resource;

The transmission power of the third target SRS resource, the number of ports of the first target SRS resource, and the number of ports of the third target SRS resource;

The second target SRS resource is the SRS resource with the largest number of ports in the resource set;

The third target SRS resource is the SRS resource with the least number of ports in the resource set;

The first target SRS resource is an SRS resource having neither the largest nor the smallest number of ports in the resource set. source.

In some embodiments, the determining module is used to determine the transmit power of the second target SRS resource in the resource set according to the following formula:

Among them, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; P _{O_SRS,b,f,c} ( _qs ) represents the open-loop power control power; μ represents the subcarrier factor; M _SRS,b,f,c (i) represents the number of resource blocks occupied by the second target SRS resource; α _SRS,b,f,c ( _qs ) represents the path loss compensation coefficient of the resource set; PL _b,f,c ( _qd ) represents the path loss obtained by the terminal using the reference signal resource index; hb _,f,c (i,l) represents the closed-loop power control part.

In some embodiments, the determining module is used to determine the transmit power of the first target SRS resource according to the following formula:

Among them, N represents the number of ports of the first target SRS resource; M1 represents the number of ports of the second target SRS resource; P ^m _SRS,b,f,c (i,q _s ,l) represents the transmission power of the second target SRS resource _.

In some embodiments, the determining module is configured to determine the transmit power of the third target SRS resource according to the following formula:

Among them, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; P _{O_SRS,b,f,c} ( _qs ) represents the open-loop power control power; μ represents the subcarrier factor; M _SRS,b,f,c (i) represents the number of resource blocks occupied by the third target SRS resource; α _SRS,b,f,c ( _qs ) represents the path loss compensation coefficient of the resource set; PL _b,f,c ( _qd ) represents the path loss obtained by the terminal using the reference signal resource index; hb _,f,c (i,l) represents the closed-loop power control part.

In some embodiments, the determining module is used to determine the transmit power of the first target SRS resource according to the following formula:

Among them, N represents the number of ports of the first target SRS resource; M2 represents the number of ports of the third target SRS resource; P ^m _SRS,b,f,c (i,q _s ,l) represents the transmission power of the third target SRS resource.

It should be noted that: when the communication device provided in the above embodiment implements the corresponding communication method, only the division of the above program modules is used as an example. In actual application, the above processing can be assigned to different program modules as needed, that is, the internal structure of the terminal is divided into different program modules to complete all or part of the processing described above. In addition, the device provided in the above embodiment and the embodiment of the corresponding method belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

FIG. 7 is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure. As shown in FIG. 7 , the communication device 70 includes: a processor 701 and a memory 702 for storing a computer program that can be run on the processor;

When the communication device is a network device, the processor 701 is used to execute the computer program to: send configuration information to the terminal; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, and X is a positive integer greater than or equal to 1. Specifically, the communication device can also execute the method shown in Figure 2, which belongs to the same concept as the communication method embodiment shown in Figure 2. The specific implementation process is detailed in the method embodiment, which will not be repeated here.

When the communication device is a terminal, the processor 701 is used to execute the computer program to: receive configuration information from a network device; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, and X is a positive integer greater than or equal to 1. Specifically, the communication device can also execute the method shown in Figure 3, which belongs to the same concept as the communication method embodiment shown in Figure 3. The specific implementation process is detailed in the method embodiment, which will not be repeated here.

In actual application, the communication device 70 may further include: at least one network interface 703. The various components in the communication device 70 are coupled together through a bus system 704. It can be understood that the bus system 704 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 704 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, various buses are marked as bus systems 704 in Figure 7. Among them, the number of processors 701 can be at least one. The network interface 703 is used for wired or wireless communication between the communication device 70 and other devices. style of communication.

The memory 702 in the embodiment of the present disclosure is used to store various types of data to support the operation of the communication device 70 .

The method disclosed in the above embodiment of the present disclosure can be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 701 or the instruction in the form of software. The above processor 701 may be a general processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 701 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present disclosure. The general processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiment of the present disclosure can be directly embodied as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 702. The processor 701 reads the information in the memory 702 and completes the steps of the above method in combination with its hardware.

In an exemplary embodiment, the communication device 70 can be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD), field programmable gate array (FPGA), general processor, controller, microcontroller (MCU), microprocessor, or other electronic components to execute the aforementioned method.

The embodiment of the present disclosure also provides a computer-readable storage medium having a computer program stored thereon;

When the computer-readable storage medium is applied to a network device, when the computer program is executed by the processor, the following is executed: sending configuration information to a terminal; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1. Specifically, the computer program can also execute the method shown in FIG2, which belongs to the same concept as the communication method embodiment shown in FIG2, and its specific implementation process is detailed in the method embodiment, which will not be repeated here.

When the computer-readable storage medium is applied to a terminal, the computer program is executed by a processor to perform: receiving configuration information from a network device; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1. Specifically, the computer program can also execute the method shown in FIG3, which belongs to the same concept as the communication method embodiment shown in FIG3, and its specific implementation process is detailed in the method embodiment, which will not be repeated here.

In the several embodiments provided in the present disclosure, it should be understood that the disclosed apparatus and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

In addition, all functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may be separately configured as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

Those skilled in the art will understand that all or part of the steps of implementing the above method embodiments may be accomplished by hardware associated with program instructions, and the aforementioned program may be stored in a computer-readable storage medium, which, when executed, executes the steps of the above method embodiments; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks, and other media that can store program codes.

Alternatively, if the above-mentioned integrated unit of the present disclosure is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. In this understanding, the technical solution of the embodiment of the present disclosure, or the part that contributes to the relevant technology, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

In addition, the technical solutions described in the embodiments of the present disclosure may be arbitrarily combined without conflict.

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

Claims (24)

1. A communication method, applied to a network device, comprising:

   Sending configuration information to a terminal; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one channel sounding reference signal SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.
2. The method according to claim 1, wherein the resource set comprises: at least one first SRS resource; each of the at least one first SRS resource has two or four ports.
3. The method according to claim 1, wherein the resource set comprises: at least one first SRS resource and at least one second SRS resource;

   Wherein, each of the at least one first SRS resource has two or four ports;

   Each of the at least one second SRS resource has one or two ports.
4. The method according to claim 1, wherein the resource set comprises: at least one first SRS resource, at least one second SRS resource, and at least one third SRS resource;

   Wherein, each of the at least one first SRS resource has two ports;

   Each of the at least one second SRS resource has a port;

   Each of the at least one third SRS resource has Y ports; Y is an integer greater than 2, and Y is less than or equal to X.
5. The method according to claim 1, wherein the X is related to the number of uplink transmission streams configured for the terminal;

   The sum of the number of ports of each SRS resource in the resource set is greater than or equal to the number of uplink transmission flows configured for the terminal.
6. The method according to any one of claims 1 to 4, wherein the transmission power of each SRS port of each SRS resource in the resource set is the same.
7. The method according to claim 1, further comprising:

   Downlink control information DCI is sent to a terminal, where the DCI carries indication information; the indication information is used to indicate at least one SRS resource.
8. A communication method, applied to a terminal, comprising:

   Configuration information is received from a network device; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.
9. The method according to claim 8, wherein the resource set comprises: at least one first SRS resource; each of the at least one first SRS resource has two or four ports.
10. The method according to claim 8, wherein the resource set comprises: at least one first SRS resource and at least one second SRS resource;

    Wherein, each of the at least one first SRS resource has two or four ports;

    Each of the at least one second SRS resource has one or two ports.
11. The method according to claim 8, wherein the resource set comprises: at least one first SRS resource, at least one second SRS resource, and at least one third SRS resource;

    Wherein, each of the at least one first SRS resource has two ports;

    Each of the at least one second SRS resource has a port;

    Each of the at least one third SRS resource has Y ports; Y is an integer greater than 2, and Y is less than or equal to X.
12. The method according to claim 8, wherein the X is related to the number of uplink transmission streams configured by the terminal;

    The sum of the number of ports of each SRS resource in the resource set is greater than or equal to the number of uplink transmission flows configured for the terminal.
13. The method according to any one of claims 8 to 11, wherein the transmission power of each SRS port of each SRS resource in the resource set is the same.
14. The method according to any one of claims 8 to 11, further comprising:

    The transmit power of each SRS resource in the resource set is determined based on at least one of the following:

    The maximum transmit power of the terminal, the open-loop power control power, the subcarrier factor, the number of resource blocks occupied by SRS, the path loss compensation coefficient of the resource set, the path loss obtained by the terminal using the reference signal resource index, and the closed-loop power control part.
15. The method according to claim 14, wherein, when the number of ports corresponding to at least two SRS resources in the resource set is not equal, the method further comprises:

    The terminal determines the transmit power of the first target SRS resource based on at least one of the following:

    The transmit power of the second target SRS resource, the number of ports of the first target SRS resource, and the number of ports of the second target SRS resource;

    The transmission power of the third target SRS resource, the number of ports of the first target SRS resource, and the number of ports of the third target SRS resource;

    The second target SRS resource is the SRS resource with the largest number of ports in the resource set;

    The third target SRS resource is the SRS resource with the least number of ports in the resource set;

    The first target SRS resource is an SRS resource with neither the largest nor the smallest number of ports in the resource set.
16. The method according to claim 15, wherein the transmit power of the second target SRS resource in the resource set is determined according to the following formula:
    

    Among them, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; P _{O_SRS,b,f,c} ( _qs ) represents the open-loop power control power; μ represents the subcarrier factor; M _SRS,b,f,c (i) represents the number of resource blocks occupied by the second target SRS resource; α _SRS,b,f,c ( _qs ) represents the path loss compensation coefficient of the resource set; PL _b,f,c ( _qd ) represents the path loss obtained by the terminal using the reference signal resource index; hb _,f,c (i,l) represents the closed-loop power control part.
17. The method according to claim 16, wherein the transmit power of the first target SRS resource is determined according to the following formula:
    

    Among them, N represents the number of ports of the first target SRS resource; M1 represents the number of ports of the second target SRS resource; P ^m _SRS,b,f,c (i,q _s ,l) represents the transmission power of the second target SRS resource.
18. The method according to claim 15, wherein the transmit power of the third target SRS resource is determined according to the following formula:
    

    Wherein, _PCMAX,f,c (i) represents the maximum transmit power of the terminal; P _{O_SRS,b,f,c} (q _s ) represents the open-loop power control control power; μ represents the subcarrier factor; M _SRS,b,f,c (i) represents the number of resource blocks occupied by the third target SRS resource; α _SRS,b,f,c (q _s ) represents the path loss compensation coefficient of the resource set; PL _b,f,c (q _d ) represents the path loss obtained by the terminal using the reference signal resource index; h _b,f,c (i,l) represents the closed-loop power control part.
19. The method according to claim 18, wherein the transmit power of the first target SRS resource is determined according to the following formula:
    

    Among them, N represents the number of ports of the first target SRS resource; M2 represents the number of ports of the third target SRS resource; P ^m _SRS,b,f,c (i,q _s ,l) represents the transmission power of the third target SRS resource.
20. The method according to claim 8, further comprising:

    A DCI is received from a network device, where the DCI carries indication information; the indication information is used to indicate at least one SRS resource.
21. A communication device, applied to a network device, comprising:

    A sending module is used to send configuration information to a terminal; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.
22. A communication device, applied to a terminal, comprising:

    A receiving module is used to receive configuration information from a network device; the configuration information is used to indicate a resource set for non-codebook uplink transmission; the resource set includes: at least one SRS resource; the SRS resource in the resource set has at most X ports, where X is a positive integer greater than or equal to 1.
23. A communication device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method according to any one of claims 1 to 7 when executing the program; or

    When the processor executes the program, the steps of the method according to any one of claims 8 to 20 are implemented.
24. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the method described in any one of claims 1 to 7 are implemented; or, when the computer program is executed by a processor, the steps of the method described in any one of claims 8 to 20 are implemented.