TWI883354B - SRS transmission power determination method, equipment, device and storage medium - Google Patents

Abstract

The embodiments of the present invention provide a method, equipment, device and storage medium for determining SRS transmission power, wherein the method for determining SRS transmission power includes: determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, the target SRS being the SRS corresponding to the target SRS resource in the one or more SRS resource sets; and sending the target SRS according to the transmission power. Through the method, equipment, device and storage medium for determining SRS transmission power provided by the embodiments of the present invention, regardless of the structure of the RF chain of the terminal, the terminal can ensure the relative power relationship between different SRS resources, so that the network equipment's understanding of the SRS transmission power can be consistent with the transmission power of the SRS actually sent by the terminal.

Description

SRS transmission power determination method, equipment, device and storage medium

The present invention belongs to the field of wireless communication technology, and in particular relates to a method, equipment, device and storage medium for determining SRS transmission power.

In the 3rd Generation Partnership Project (3GPP) New Radio (NR) system, in order to better obtain the downlink channel state information (DL CSI), the terminal can report the sounding reference signal (SRS) it supports. The antenna switching capability of the terminal is reported by the NR system protocol (SRS), and the antenna switching capability reported by the terminal is used to indicate the xTyR capability supported by the terminal (where xTyR can be one or more of 1T1R, 1T2R, 1T4R, 2T2R, 2T4R, 1T6R, 1T8R, 2T6R, 2T8R, 4T6R and 4T8R, and with the further improvement of the protocol, its candidate values may continue to increase).

。相應地，基地台在確定DL CSI品質時，按照各SRS資源對應相同的發送功率來比較下行接收天線間的相對信道品質，指導下行調度。 The network equipment (e.g., base station) can configure one or more SRS resource sets for DL CSI acquisition for the terminal according to the antenna switching capability reported by the terminal, and each SRS resource set includes one or more SRS resources. In the current system, the base station can configure the corresponding power control parameter for each SRS resource set, and the terminal uses the power control parameter corresponding to the SRS resource set where the SRS resource is located to determine the transmission power corresponding to the SRS resource, and then divides the transmission power evenly among all antenna ports where the SRS resource is configured. In the NR system Rel-16 protocol, the following formula is used to calculate the transmission power corresponding to the SRS resource, that is, the transmission capability of the SRS cannot be greater than the maximum transmission power PCMAX _,f,c ( i ) (for the explanation of each parameter, please refer to Section 7.3.1 of 3GPP protocol TS38.213 V16.7.0 (2021-09)):

Accordingly, when determining the DL CSI quality, the base station compares the relative channel quality between downlink receiving antennas according to the same transmit power corresponding to each SRS resource, and guides the downlink scheduling.

However, for terminals with antenna switching capabilities such as 4T6R or 4T8R, the existing SRS power control mechanism may not work well due to the structure of its transmission channel (RF chain). For example, for a terminal supporting 4T6R, if its four RF chains are all 17dBm power amplifiers (PA), the maximum output power corresponding to the terminal's power level is 23dBm. If the base station configures an SRS resource set with usage as antennaSwitching for the terminal, including a 4-port SRS resource and a 2-port SRS resource, then according to the existing SRS power control mechanism, when the SRS transmission power calculated according to the power control parameter does not reach the maximum transmission power, the total transmission power of the two SRS resources is the same; when the SRS transmission power calculated according to the power control parameter reaches the maximum transmission power PCMAX _,f,c ( i )=23dBm, for the 4-port SRS resource, the transmit power of each port should be one quarter of 23dBm, that is, 17dBm. For the 2-port SRS resource, the transmit power of each port should be one half of 23dBm, that is, 20dBm. Since the terminal PA cannot reach 20dBm, the terminal can only use 17dBm to transmit each antenna port of the 2-port SRS resource. The base station always determines the DL CSI quality according to the total transmit power of the 2-port SRS resource and the total transmit power of the 4-port SRS resource. This will cause the base station to make an incorrect prediction of the DL CSI quality when the SRS transmit power calculated by the terminal according to the power control parameter is near the maximum transmit power, thereby failing to perform the optimal downlink scheduling.

In view of the problems existing in the prior art, the embodiments of the present invention provide a method, equipment, device and storage medium for determining SRS transmission power.

In a first aspect, an embodiment of the present invention provides a method for determining SRS transmission power, comprising: determining the transmission power of an antenna port corresponding to a target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, wherein the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; and sending the target SRS according to the transmission power.

Optionally, the determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets.

Optionally, the determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first number of antenna ports; wherein the first number of antenna ports is the maximum number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets, or the first number of antenna ports is the minimum number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS; or, dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the first coefficient; or determining the second transmission power corresponding to the target SRS according to the first coefficient, and determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power; wherein the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of the first antenna ports.

Optionally, the first transmission power is determined according to one or more of the following: a power control parameter corresponding to the target SRS resource; a bandwidth corresponding to the target SRS resource; a path loss reference signal corresponding to the target SRS resource; a target received power corresponding to the target SRS resource; a partial path loss compensation factor corresponding to the target SRS resource; a closed-loop power control parameter corresponding to the target SRS resource; a spatial correlation parameter corresponding to the target SRS resource; or a maximum output power of the terminal.

Optionally, the determining the transmission power of the antenna port corresponding to the target SRS according to the first transmission power and the first coefficient corresponding to the target SRS includes: Using the first coefficient to scale the first transmission power, dividing the scaled transmission power evenly on the antenna port corresponding to the target SRS, and using the result of the even division as the transmission power of the antenna port corresponding to the target SRS.

Optionally, the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of the first antenna ports, including: the first coefficient is determined according to the ratio of the number of antenna ports corresponding to the target SRS and the number of the first antenna ports.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power includes: dividing the second transmission power equally on the antenna port corresponding to the target SRS, and using the result of the equalization as the transmission power of the antenna port corresponding to the target SRS.

Optionally, the determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets includes: determining whether the configuration of at least one SRS resource in the one or more SRS resource sets meets a first condition; if the configuration of at least one SRS resource in the one or more SRS resource sets meets the first condition, performing one or more of the following: equally dividing the first transmission power corresponding to the target SRS according to the number of the first antenna ports, and using the result of the equalization as the transmission power of the antenna port corresponding to the target SRS; and equally dividing the first transmission power corresponding to the target SRS. The transmission power is divided by the number of the first antenna ports, and the result of the division is used as the transmission power of the antenna port corresponding to the target SRS; the first transmission power corresponding to the target SRS is evenly divided on the antenna ports corresponding to the target SRS; the transmission power of the antenna port corresponding to the target SRS is determined according to the first transmission power corresponding to the target SRS and the second coefficient; the third transmission power corresponding to the target SRS is determined according to the second coefficient, and the transmission power of the antenna port corresponding to the target SRS is determined according to the third transmission power; the transmission power corresponding to the target SRS is determined according to the first transmission power corresponding to the target SRS and the third coefficient. The invention relates to a method for transmitting a first transmission power of an antenna port of a target SRS; determining a first transmission power corresponding to the target SRS, and scaling the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predetermined fixed value, or the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS is a predetermined fixed value; wherein the number of the first antenna port is at least one SRS in the one or more SRS resource sets. The maximum or minimum value of the number of antenna ports corresponding to the target SRS resource; the second coefficient is a default value or a coefficient determined according to the number of antenna ports corresponding to the target SRS and the first number of antenna ports; the third coefficient is a coefficient determined according to the maximum output power that can be achieved by the SRS or SRS resource whose corresponding number of antenna ports is the first number of antenna ports and the first transmission power corresponding to the SRS or SRS resource whose corresponding number of ports is the first number of antenna ports; or the third coefficient is a coefficient determined according to the maximum output power of the terminal and the first transmission power corresponding to the SRS resource whose corresponding number of antenna ports is the first number of antenna ports.

Optionally, the first condition includes one or more of the following conditions: at least one SRS resource in the one or more SRS resource sets is an SRS resource in the SRS resource set corresponding to the first switching mode; at least two SRS resources in the one or more SRS resource sets have different numbers of antenna ports corresponding to them; at least one SRS resource in the one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to a first specified value and at least one SRS resource with a number of antenna ports equal to a second specified value; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is equal to a third specified value; at least one SRS resource in the one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to a third specified value. The number of antenna ports of at least one SRS resource in the one or more SRS resource sets is equal to 4 and the number of antenna ports of at least one SRS resource in the one or more SRS resource sets is equal to 2; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is less than the maximum number of SRS antenna ports supported by the terminal; the first transmission power corresponding to the SRS corresponding to at least one SRS resource in the one or more SRS resource sets is greater than the maximum output power supported by the at least one SRS resource; the first transmission power corresponding to the SRS corresponding to the SRS resource in the one or more SRS resource sets whose corresponding number of antenna ports is the specified number of antenna ports is greater than the maximum output power supported by the corresponding SRS resource with the specified number of antenna ports.

Optionally, it further includes: determining a first transmission power corresponding to the target SRS, scaling the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power corresponding to the SRS resource corresponding to the first SRS is a predetermined fixed value, or the ratio of the transmission power of the antenna port corresponding to the target SRS to the transmission power of the antenna port corresponding to the first SRS is a predetermined fixed value; wherein the target SRS is an SRS with a specified first value of antenna ports, and the first SRS is an SRS with a specified second value of antenna ports.

Optionally, at least one SRS resource in the one or more SRS resource sets is an SRS resource used for the same purpose.

Optionally, at least one SRS resource in the one or more SRS resource sets is used for the same purpose and is configured as an SRS resource of the same time domain type.

Optionally, the SRS transmission power determination method further includes: receiving a first signaling sent by a network device, the first signaling being used to indicate a method for determining the SRS transmission power.

In a second aspect, an embodiment of the present invention further provides a method for determining SRS transmission power, including: determining the transmission power of the antenna port corresponding to the target SRS by determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets; the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; and determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs according to the configuration of at least one SRS resource in the one or more SRS resource sets.

Optionally, the determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs according to the configuration of at least one SRS resource in the one or more SRS resource sets includes: Determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets.

Optionally, the SRS transmission power determination method further includes: sending a first signaling to the terminal, the first signaling is used to indicate a method for determining the SRS transmission power.

In a third aspect, an embodiment of the present invention further provides a terminal, including a memory, a transceiver, and a processor: the memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations based on the transceiver: according to the configuration of at least one SRS resource in one or more SRS resource sets, determine the transmission power of the antenna port corresponding to the target SRS, the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; according to the transmission power, send the target SRS.

Optionally, the determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets.

Optionally, the determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first number of antenna ports; Wherein, the first number of antenna ports is the maximum value of the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets, or the first number of antenna ports is the minimum value of the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS; or dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the first coefficient; or determining the second transmission power corresponding to the target SRS according to the first coefficient, and determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power; wherein the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of the first antenna ports.

Optionally, the first transmission power is determined according to one or more of the following: a power control parameter corresponding to the target SRS resource; a bandwidth corresponding to the target SRS resource; a path loss reference signal corresponding to the target SRS resource; a target received power corresponding to the target SRS resource; a partial path loss compensation factor corresponding to the target SRS resource; a closed-loop power control parameter corresponding to the target SRS resource; a spatial correlation parameter corresponding to the target SRS resource; or a maximum output power of the terminal.

Optionally, the determining the transmission power of the antenna port corresponding to the target SRS according to the first transmission power and the first coefficient corresponding to the target SRS includes: scaling the first transmission power using the first coefficient, dividing the scaled transmission power evenly on the antenna port corresponding to the target SRS, and using the result of the even division as the transmission power of the antenna port corresponding to the target SRS.

Optionally, the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of the first antenna ports, including: the first coefficient is determined according to the ratio of the number of antenna ports corresponding to the target SRS and the number of the first antenna ports.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power includes: dividing the second transmission power equally on the antenna port corresponding to the target SRS, and using the result of the equalization as the transmission power of the antenna port corresponding to the target SRS.

Optionally, the determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets includes: determining whether the configuration of at least one SRS resource in the one or more SRS resource sets meets the first condition; if the configuration of at least one SRS resource in the one or more SRS resource sets meets the first condition, performing one or more of the following: Equally divide the first transmission power corresponding to the target SRS according to the number of the first antenna ports, and use the result of the equalization as the transmission power of the antenna port corresponding to the target SRS; The transmission power of the target SRS is divided by the number of the first antenna ports, and the result of the division is used as the transmission power of the antenna port corresponding to the target SRS; the first transmission power corresponding to the target SRS is evenly divided on the antenna ports corresponding to the target SRS; the transmission power of the antenna port corresponding to the target SRS is determined according to the first transmission power corresponding to the target SRS and the second coefficient; the third transmission power corresponding to the target SRS is determined according to the second coefficient, and the transmission power of the antenna port corresponding to the target SRS is determined according to the third transmission power; the transmission power of the antenna port corresponding to the target SRS is determined according to the first transmission power corresponding to the target SRS and the third coefficient. The invention relates to a method for transmitting a first transmission power of an antenna port of a target SRS; determining a first transmission power corresponding to the target SRS, and scaling the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predetermined fixed value, or the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS is a predetermined fixed value; wherein the number of the first antenna port is at least one SRS in the one or more SRS resource sets. The maximum or minimum value of the number of antenna ports corresponding to the target SRS resource; the second coefficient is a default value or a coefficient determined according to the number of antenna ports corresponding to the target SRS and the first number of antenna ports; the third coefficient is a coefficient determined according to the maximum output power that can be achieved by the SRS or SRS resource whose corresponding number of antenna ports is the first number of antenna ports and the first transmission power corresponding to the SRS or SRS resource whose corresponding number of ports is the first number of antenna ports; or the third coefficient is a coefficient determined according to the maximum output power of the terminal and the first transmission power corresponding to the SRS resource whose corresponding number of antenna ports is the first number of antenna ports.

Optionally, the first condition includes one or more of the following conditions: at least one SRS resource in the one or more SRS resource sets is an SRS resource in the SRS resource set corresponding to the first switching mode; at least two SRS resources in at least one SRS resource in the one or more SRS resource sets have different numbers of antenna ports corresponding to them; at least one SRS resource in the one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to a first specified value and at least one SRS resource with a number of antenna ports equal to a second specified value; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is equal to a third specified value; at least one SRS resource in the one or more SRS resource sets includes at least one antenna port =4 and at least one SRS resource with an antenna port number equal to 2; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is equal to 2; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is less than the maximum number of SRS antenna ports supported by the terminal; the first transmission power corresponding to the SRS corresponding to at least one SRS resource in the one or more SRS resource sets is greater than the maximum output power supported by the at least one SRS resource; The first transmission power corresponding to the SRS corresponding to the SRS resource with a designated number of antenna ports in the one or more SRS resource sets is greater than the maximum output power supported by the SRS resource with a designated number of antenna ports.

Optionally, it further includes: determining a first transmission power corresponding to the target SRS, scaling the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power corresponding to the SRS resource corresponding to the first SRS is a predetermined fixed value, or the ratio of the transmission power of the antenna port corresponding to the target SRS to the transmission power of the antenna port corresponding to the first SRS is a predetermined fixed value; wherein the target SRS is an SRS with a specified first value of antenna ports, and the first SRS is an SRS with a specified second value of antenna ports.

Optionally, at least one SRS resource in the one or more SRS resource sets is an SRS resource used for the same purpose.

Optionally, at least one SRS resource in the one or more SRS resource sets is used for the same purpose and is configured as an SRS resource of the same time domain type.

Optionally, the operation further includes: receiving a first signaling sent by a network device, the first signaling being used to indicate a method for determining the SRS transmission power.

In a fourth aspect, an embodiment of the present invention further provides a network device, including a memory, a transceiver, and a processor: the memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: The transmission power of the antenna port corresponding to the target SRS is determined according to at least one of the one or more SRS resource sets. The configuration of an SRS resource determines the transmission power of the antenna port corresponding to the target SRS; the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; according to the configuration of at least one SRS resource in the one or more SRS resource sets, the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs is determined.

Optionally, the determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs according to the configuration of at least one SRS resource in the one or more SRS resource sets includes: determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets.

Optionally, the operation further includes: sending a first signaling to the terminal, the first signaling being used to indicate a method for determining the SRS transmission power.

In a fifth aspect, an embodiment of the present invention further provides an SRS transmission power determination device, comprising: a first determination unit, configured to determine the transmission power of an antenna port corresponding to a target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, wherein the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; and a first transmission unit, configured to transmit the target SRS according to the transmission power.

In a sixth aspect, an embodiment of the present invention further provides an SRS transmission power determination device, comprising: A second determination unit, used to determine the transmission power of the antenna port corresponding to the target SRS in a manner that the transmission power of the antenna port corresponding to the target SRS is determined according to the configuration of at least one SRS resource in one or more SRS resource sets; the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; a third determination unit, used to determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs according to the configuration of at least one SRS resource in the one or more SRS resource sets.

In the seventh aspect, the embodiment of the present invention also provides a computer-readable storage medium, which stores a computer program, and the computer program is used to enable the computer to execute the steps of the SRS transmission power determination method of the first aspect as described above, or execute the steps of the SRS transmission power determination method of the second aspect as described above.

The SRS transmission power determination method, equipment, device and storage medium provided by the embodiments of the present invention can determine the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, so that no matter what structure the RF chain of the terminal is, the terminal can ensure the relative power relationship between different SRS resources, so that the network equipment's understanding of the SRS transmission power can be consistent with the transmission power of the SRS actually sent by the terminal.

300: Processor

310: Transceiver

320: Memory

330: User Interface

400:Processor

410: Transceiver

420: Memory

500: First confirmed unit

510: First sending unit

600: Second confirmed unit

610: The third determination unit

100-101: Steps

200-201: Steps

FIG. 1 is a flow chart of the SRS transmission power determination method provided by an embodiment of the present invention; FIG. 2 is a flow chart of the SRS transmission power determination method provided by an embodiment of the present invention; FIG. 3 is a structural diagram of the terminal provided by an embodiment of the present invention; FIG. 4 is a structural diagram of the network equipment provided by an embodiment of the present invention; FIG. 5 is a structural diagram of the SRS transmission power determination device provided by an embodiment of the present invention; FIG. 6 is a structural diagram of the SRS transmission power determination device provided by an embodiment of the present invention.

In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the attached drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or location relationships based on the positions or location relationships shown in the attached drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For those with ordinary knowledge in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

FIG1 is one of the flow charts of the SRS transmission power determination method provided by an embodiment of the present invention. The SRS transmission power determination method can be applied to a terminal. As shown in FIG1, the SRS transmission power determination method includes the following steps:

Step 100: Determine the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, where the target SRS is the SRS corresponding to the target SRS resource in one or more SRS resource sets.

Optionally, the configuration of at least one SRS resource in one or more SRS resource sets includes the configuration of all or part of the SRS resources in the one or more SRS resource sets.

Optionally, the configuration of all SRS resources in one or more SRS resource sets, that is, the configuration of each SRS resource in the one or more SRS resource sets.

Specifically, a network device (such as a base station) can configure one or more SRS resource sets for a terminal, and each SRS resource set includes one or more SRS resources.

In the existing SRS power control mechanism, the terminal always determines the transmission power of the antenna port where each SRS resource is configured according to the configuration of each SRS resource. This may cause the network equipment to have a different understanding of the relative relationship between the transmission power of different SRSs and the actual transmission power of the SRS sent by the terminal in certain RF chain structures, thereby making an erroneous judgment. For example, when the SRS resource is used for DL CSI acquisition, the network equipment will make an erroneous prediction of the DL CSI quality, making it impossible to perform the optimal downlink scheduling.

To avoid the above problems, in an embodiment of the present invention, the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets. The target SRS is the SRS corresponding to the target SRS resource in one or more SRS resource sets. The transmission power of the antenna port corresponding to the target SRS can be understood as the transmission power corresponding to the antenna port configured with the target SRS resource.

For example, if the network device configures an SRS resource set for the terminal, the terminal determines the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in the SRS resource set; for another example, if the network device configures multiple SRS resource sets for the terminal, the terminal determines the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in the multiple SRS resource sets.

Therefore, regardless of the terminal's RF chain structure, the terminal can guarantee the relative power relationship between different SRS resources, so that the network equipment's understanding of the SRS transmission power can be consistent with the actual SRS transmission power sent by the terminal.

It should be understood that the technical solutions of the embodiments of the present invention are not only applicable to SRS resources for DL CSI acquisition, but also applicable to SRS resources for other purposes, and are not specifically limited here. For example, the SRS resources may be SRS resources of a certain usage type for a multi-point coordination (Multi-Transmit Receive Point, M-TRP) scenario, or SRS resources for uplink CSI acquisition (for example, SRS resources in an SRS resource set whose high-layer parameter usage is configured as "codebook", or SRS resources in an SRS resource set whose high-layer parameter usage is configured as "nonCodebook"), or SRS resources for interference measurement, or SRS resources for beam management, and so on. For the convenience of subsequent discussion, each embodiment of the present invention is introduced using the SRS resources used for DL CSI acquisition as an example.

Optionally, at least one SRS resource in one or more SRS resource sets may be an SRS resource used for the same purpose. For example, at least one SRS resource in one or more SRS resource sets may be an SRS resource used for DL CSI acquisition, such as an SRS resource whose high-layer signaling usage is configured as "antennaSwitching".

Optionally, at least one SRS resource in one or more SRS resource sets may be an SRS resource used for the same purpose and configured as the same time domain type. For example, at least one SRS resource in one or more SRS resource sets may be an SRS resource configured as the same time domain type among the SRS resources used for DL CSI acquisition. Some examples of time domain types include: periodic, aperiodic, and semi-persistent. For example, an SRS resource whose high-layer signaling resourceType is configured as "aperiodic" and whose high-layer signaling usage is configured as "antennaSwitching". For another example, an SRS resource whose high-layer signaling resourceType is configured as "periodic" and whose high-layer signaling usage is configured as "antennaSwitching". Another example is an SRS resource whose high-layer signaling resourceType is configured as "semi-persistent" and whose high-layer signaling usage is configured as "antennaSwitching".

Optionally, at least one SRS resource in one or more SRS resource sets may be a specific type of SRS resource. For example, at least one SRS resource in one or more SRS resource sets is an SRS resource used for a specific SRS transmission port switching pattern (in some embodiments, it can be expressed as "SRS antenna switching pattern", "DL CSI acquisition antenna switching pattern", "SRS antenna switching mode", "DL CSI acquisition antenna switching mode", etc.), for example, a SRS resource whose high-layer signaling usage is configured as "antennaSwitching" and is used for an SRS transmission port switching pattern of 4T6R.

Optionally, at least one SRS resource in one or more SRS resource sets includes all or part of the SRS resources in the one or more SRS resource sets.

Optionally, all SRS resources in one or more SRS resource sets, that is, each SRS resource in the one or more SRS resource sets.

Step 101, send the target SRS according to the transmission power.

Specifically, after the terminal determines the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, it can send the target SRS to the network device according to the transmission power of the antenna port corresponding to the determined target SRS.

The SRS transmission power determination method provided by the embodiment of the present invention can determine the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, so that no matter what structure the RF chain of the terminal is, the terminal can ensure the relative power relationship between different SRS resources, so that the understanding of the SRS transmission power of the network equipment can be consistent with the transmission power of the SRS actually sent by the terminal.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets.

Specifically, in the embodiment of the present invention, the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets. For example, if the network device configures an SRS resource set for the terminal, the terminal determines the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports configured by at least one SRS resource in the SRS resource set; for another example, if the network device configures multiple SRS resource sets for the terminal, the terminal determines the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports configured by at least one SRS resource in the multiple SRS resource sets.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first number of antenna ports; wherein the first number of antenna ports is the maximum number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets, or the first number of antenna ports is the minimum number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets.

Specifically, in the embodiment of the present invention, the terminal can determine the maximum or minimum value of each antenna port number, that is, the first antenna port number, according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets configured by the network device, and determine the transmission power of the antenna port corresponding to the target SRS according to the first antenna port number.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS; or dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS.

Specifically, in the embodiment of the present invention, the terminal may first determine the first transmission power corresponding to the target SRS, and then divide the first transmission power by the number of the first antenna ports, and use the result of the division as the transmission power of the antenna port corresponding to the target SRS; or, divide the first transmission power corresponding to the target SRS by the number of the first antenna ports, and use the result of the division as the transmission power of the antenna port corresponding to the target SRS. For example, if the terminal determines that the first transmission power corresponding to the target SRS is P1, the number of antenna ports corresponding to the target SRS is 2, and the number of the first antenna ports is 4, then (1/4)*P1 may be used as the transmission power of each antenna port corresponding to the target SRS.

Optionally, the first transmission power may be determined based on one or more of the following:

(1) Power control parameters corresponding to the target SRS resource. The power control parameters corresponding to the target SRS resource can be understood as the power control parameters corresponding to the SRS resource set where the target SRS resource is located. The power control parameters may include one or more of the following: path loss reference signal parameters; target received power parameters; partial path loss compensation parameters; closed-loop power control parameters; open-loop power control parameters.

(2) The bandwidth corresponding to the target SRS resource. The bandwidth corresponding to the target SRS resource can be understood as the bandwidth corresponding to the SRS resource set where the target SRS resource is located.

(3) The path loss reference signal corresponding to the target SRS resource. The path loss reference signal corresponding to the target SRS resource can be understood as the path loss reference signal corresponding to the SRS resource set where the target SRS resource is located.

(4) Target received power corresponding to the target SRS resource. The target received power corresponding to the target SRS resource can be understood as the target received power corresponding to the SRS resource set where the target SRS resource is located.

(5) Partial path loss compensation factor corresponding to the target SRS resource. The partial path loss compensation factor corresponding to the target SRS resource can be understood as the partial path loss compensation factor corresponding to the SRS resource set where the target SRS resource is located.

(6) Closed-loop power control parameters corresponding to the target SRS resource. The closed-loop power control parameters corresponding to the target SRS resource can be understood as the closed-loop power control parameters corresponding to the SRS resource set where the target SRS resource is located.

(7) Spatial Relation Info corresponding to the target SRS resource. The spatial relation information corresponding to the target SRS resource can be understood as the spatial relation information corresponding to the SRS resource set where the target SRS resource is located. For example, it can be the transmission spatial relation information indicated by the transmission configuration indication (TCI) state corresponding to the target SRS resource or SRS resource set; for example, it can be the quasi-co-location (QCL) parameter corresponding to the target SRS resource or SRS resource set.

(8) Maximum output power of the terminal.

For example , the first transmission power may be the _transmission power PSRS corresponding to the _SRS calculated according to the power control parameter using the following formula ( the explanation of each parameter in the formula may refer to Section 7.3.1 of 3GPP protocol TS38.213 V16.7.0 (2021-09)):

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the first coefficient; wherein the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of the first antenna ports.

Specifically, in the embodiment of the present invention, the terminal may first determine the first transmission power corresponding to the target SRS, and then determine the transmission power of the antenna port corresponding to the target SRS according to the first transmission power and the first coefficient. The first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of first antenna ports. Optionally, the first coefficient may be determined according to the ratio of the number of antenna ports corresponding to the target SRS to the number of first antenna ports. For example, the first coefficient may be the ratio of the number of antenna ports corresponding to the target SRS to the number of first antenna ports, or a coefficient related to the ratio.

Optionally, according to the first transmission power and the first coefficient corresponding to the target SRS, determining the transmission power of the antenna port corresponding to the target SRS includes: scaling the first transmission power using the first coefficient, dividing the scaled transmission power evenly on the antenna port corresponding to the target SRS, and using the result of the even division as the transmission power of the antenna port corresponding to the target SRS.

Specifically, the terminal determines the transmission power of the antenna port corresponding to the target SRS based on the first transmission power and the first coefficient corresponding to the target SRS. The first transmission power can be scaled by the first coefficient, and then the scaled transmission power is evenly divided on the antenna port corresponding to the target SRS, and the result of the equal division is used as the transmission power of the antenna port corresponding to the target SRS. For example, the terminal determines that the first transmission power corresponding to the target SRS is P1, the number of antenna ports corresponding to the target SRS is 2, and the first coefficient is 1/2. Then the terminal can scale the first transmission power P1 by the first coefficient 1/2 to obtain the scaled transmission power (1/2)*P1, and then divide (1/2)*P1 evenly on the antenna ports corresponding to the target SRS, that is, divide (1/2)*P1 by the number of antenna ports corresponding to the target SRS, 2, and use the result (1/4)*P1 as the transmission power of each antenna port corresponding to the target SRS.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: determining the second transmission power corresponding to the target SRS according to the first coefficient, and determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power; wherein the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of the first antenna ports.

Specifically, in the embodiment of the present invention, the terminal can first determine the second transmission power corresponding to the target SRS according to the first coefficient, and then determine the transmission power of the antenna port corresponding to the target SRS according to the second transmission power.

Optionally, the second transmission power can be determined based on the first coefficient and one or more of the following:

(1) Power control parameters corresponding to the target SRS resource. The power control parameters corresponding to the target SRS resource can be understood as the power control parameters corresponding to the SRS resource set where the target SRS resource is located. The power control parameters may include one or more of the following: path loss reference signal parameters; target received power parameters; partial path loss compensation parameters; closed-loop power control parameters; open-loop power control parameters.

(2) The bandwidth corresponding to the target SRS resource. The bandwidth corresponding to the target SRS resource can be understood as the bandwidth corresponding to the SRS resource set where the target SRS resource is located.

(3) The path loss reference signal corresponding to the target SRS resource. The path loss reference signal corresponding to the target SRS resource can be understood as the path loss reference signal corresponding to the SRS resource set where the target SRS resource is located.

(4) Target received power corresponding to the target SRS resource. The target received power corresponding to the target SRS resource can be understood as the target received power corresponding to the SRS resource set where the target SRS resource is located.

(5) Partial path loss compensation factor corresponding to the target SRS resource. The partial path loss compensation factor corresponding to the target SRS resource can be understood as the partial path loss compensation factor corresponding to the SRS resource set where the target SRS resource is located.

(6) Closed-loop power control parameters corresponding to the target SRS resource. The closed-loop power control parameters corresponding to the target SRS resource can be understood as the closed-loop power control parameters corresponding to the SRS resource set where the target SRS resource is located.

(7) Spatial Relation Info corresponding to the target SRS resource. The spatial relation information corresponding to the target SRS resource can be understood as the spatial relation information corresponding to the SRS resource set where the target SRS resource is located. For example, it can be the transmission spatial relation information indicated by the transmission configuration indication (TCI) state corresponding to the target SRS resource or SRS resource set; for example, it can be the quasi-co-location (QCL) parameter corresponding to the target SRS resource or SRS resource set.

(8) Maximum output power of the terminal. For example, the second transmission power may be the transmission power P ` _{SRS ,b,f,c} ( i,q _s ,l ) corresponding to the SRS calculated according to the first coefficient and the power control parameter using the following formula (the explanation of each parameter in the formula can be referred to Section 7.3.1 of 3GPP protocol TS38.213 V16.7.0 (2021-09), where k ₁ represents the first coefficient):

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power includes: dividing the second transmission power equally on the antenna port corresponding to the target SRS, and using the result of the equalization as the transmission power of the antenna port corresponding to the target SRS.

Specifically, the terminal determines the transmission power of the antenna port corresponding to the target SRS according to the second transmission power corresponding to the target SRS, which can be done by evenly dividing the second transmission power on the antenna ports corresponding to the target SRS, and then using the evenly divided result as the transmission power of the antenna port corresponding to the target SRS. For example, if the terminal determines that the second transmission power corresponding to the target SRS is P2, and the number of antenna ports corresponding to the target SRS is 2, the terminal can evenly divide the second transmission power P2 on the antenna ports corresponding to the target SRS, that is, divide P2 by the number of antenna ports corresponding to the target SRS, 2, and use the result (1/2)*P2 as the transmission power of each antenna port corresponding to the target SRS.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets includes: Determining whether the configuration of at least one SRS resource in one or more SRS resource sets meets the first condition; when the configuration of at least one SRS resource in one or more SRS resource sets meets the first condition, performing one or more of the following: equally dividing the first transmission power corresponding to the target SRS according to the number of the first antenna ports, and using the result of the equalization as the transmission power of the antenna port corresponding to the target SRS; The first transmission power of the target SRS is divided by the number of the first antenna ports, and the result of the division is used as the transmission power of the antenna port corresponding to the target SRS; the first transmission power corresponding to the target SRS is evenly divided on the antenna ports corresponding to the target SRS; the transmission power of the antenna port corresponding to the target SRS is determined according to the first transmission power corresponding to the target SRS and the second coefficient; the third transmission power corresponding to the target SRS is determined according to the second coefficient, and the transmission power of the antenna port corresponding to the target SRS is determined according to the third transmission power; the transmission power of the antenna port corresponding to the target SRS is determined according to the first transmission power corresponding to the target SRS and the third coefficient. The invention relates to a method for transmitting a first transmission power of an antenna port of a target SRS; determining a first transmission power corresponding to a target SRS, and scaling the first transmission power so that a ratio of a transmission power of the target SRS to a transmission power of the first SRS is a predetermined fixed value, or a ratio of a transmission power of an SRS resource corresponding to the target SRS to a transmission power of an SRS resource corresponding to the first SRS is a predetermined fixed value, or a ratio of a transmission power of the antenna port of the target SRS to a transmission power of the antenna port of the first SRS is a predetermined fixed value; wherein the number of the first antenna port is at least one SR in one or more SRS resource sets. The maximum or minimum value of the number of antenna ports corresponding to the SRS resource; the second coefficient is a default value or a coefficient determined according to the number of antenna ports corresponding to the target SRS and the first number of antenna ports; the third coefficient is a coefficient determined according to the maximum output power that can be achieved by the SRS or SRS resource whose corresponding number of antenna ports is the first number of antenna ports and the first transmission power corresponding to the SRS or SRS resource whose corresponding number of ports is the first number of antenna ports; or the third coefficient is a coefficient determined according to the maximum output power of the terminal and the first transmission power corresponding to the SRS resource whose corresponding number of antenna ports is the first number of antenna ports.

Specifically, in the embodiment of the present invention, after the network device configures one or more SRS resource sets for the terminal, the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to whether the configuration of at least one SRS resource in the one or more SRS resource sets meets the first condition.

Specifically, if the terminal determines that the configuration of at least one SRS resource in one or more SRS resource sets meets the first condition, the terminal can use one or more of the following methods to determine the transmission power of the antenna port corresponding to the target SRS.

Method 1: The terminal can divide the first transmission power corresponding to the target SRS equally according to the number of the first antenna ports, and then use the result of the equalization as the transmission power of the antenna port corresponding to the target SRS. For example, the first transmission power is divided by the number of the first antenna ports, and the result is used as the transmission power of each antenna port corresponding to the target SRS.

Method 2: The terminal can evenly divide the first transmission power corresponding to the target SRS on the antenna ports corresponding to the target SRS. For example, the first transmission power is divided by the number of antenna ports corresponding to the target SRS, and the result is used as the transmission power of each antenna port corresponding to the target SRS.

Method 3: The terminal can determine the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the second coefficient. For example, the first transmission power is scaled by the second coefficient, and the scaled transmission power is evenly distributed on the antenna port corresponding to the target SRS.

The second coefficient may be a preset value (any preset value, such as 0.5), or a coefficient determined according to the number of antenna ports corresponding to the target SRS and the number of first antenna ports. Alternatively, the second coefficient may be determined according to the ratio of the number of antenna ports corresponding to the target SRS to the number of first antenna ports. For example, the second coefficient may be the ratio of the number of antenna ports corresponding to the target SRS to the number of first antenna ports, or a coefficient related to the ratio.

Method 4: The terminal can determine the third transmission power corresponding to the target SRS according to the second coefficient, and determine the transmission power of the antenna port corresponding to the target SRS according to the third transmission power.

Optionally, the third transmission power can be determined based on the second coefficient and one or more of the following:

(1) Power control parameters corresponding to the target SRS resource. The power control parameters corresponding to the target SRS resource can be understood as the power control parameters corresponding to the SRS resource set where the target SRS resource is located. The power control parameters may include one or more of the following: path loss reference signal parameters; target received power parameters; partial path loss compensation parameters; closed-loop power control parameters; open-loop power control parameters.

(2) The bandwidth corresponding to the target SRS resource. The bandwidth corresponding to the target SRS resource can be understood as the bandwidth corresponding to the SRS resource set where the target SRS resource is located.

(3) The path loss reference signal corresponding to the target SRS resource. The path loss reference signal corresponding to the target SRS resource can be understood as the path loss reference signal corresponding to the SRS resource set where the target SRS resource is located.

(4) Target received power corresponding to the target SRS resource. The target received power corresponding to the target SRS resource can be understood as the target received power corresponding to the SRS resource set where the target SRS resource is located.

(5) Partial path loss compensation factor corresponding to the target SRS resource. The partial path loss compensation factor corresponding to the target SRS resource can be understood as the partial path loss compensation factor corresponding to the SRS resource set where the target SRS resource is located.

(6) Closed-loop power control parameters corresponding to the target SRS resource. The closed-loop power control parameters corresponding to the target SRS resource can be understood as the closed-loop power control parameters corresponding to the SRS resource set where the target SRS resource is located.

(7) Spatial Relation Info corresponding to the target SRS resource. The spatial relation information corresponding to the target SRS resource can be understood as the spatial relation information corresponding to the SRS resource set where the target SRS resource is located. For example, it can be the transmission spatial relation information indicated by the transmission configuration indication (TCI) state corresponding to the target SRS resource or SRS resource set; for example, it can be the quasi-co-location (QCL) parameter corresponding to the target SRS resource or SRS resource set.

(8) Maximum output power of the terminal.

For example, the third transmission power may be the transmission power P `` _{SRS ,b,f,c} ( i,q _s ,l ) corresponding to the SRS calculated according to the second coefficient and the power control parameter using the following formula (the explanation of each parameter in the formula may refer to Section 7.3.1 of 3GPP protocol TS38.213 V16.7.0 (2021-09) , where k ₂ represents the second coefficient):

The transmission power of the antenna port corresponding to the target SRS is determined according to the third transmission power, and the third transmission power may be evenly divided on the antenna port corresponding to the target SRS.

Method 5: The terminal can determine the transmission power of the antenna port corresponding to the target SRS based on the first transmission power corresponding to the target SRS and the third coefficient.

The third coefficient may be a coefficient determined based on the maximum output power that can be achieved by the SRS or SRS resource whose corresponding number of antenna ports is the first number of antenna ports, and the first transmission power corresponding to the SRS or SRS resource whose corresponding number of ports is the first number of antenna ports; or the third coefficient may be a coefficient determined based on the maximum output power of the terminal and the first transmission power corresponding to the SRS resource whose corresponding number of antenna ports is the first number of antenna ports.

Optionally, the third coefficient may be determined according to the ratio of the maximum output power that can be achieved by the SRS or SRS resource whose corresponding antenna port number is the first antenna port number to the first transmission power corresponding to the SRS or SRS resource whose corresponding port number is the first antenna port number. For example, the third coefficient may be the ratio of the maximum output power that can be achieved by the SRS or SRS resource whose corresponding antenna port number is the first antenna port number to the first transmission power corresponding to the SRS or SRS resource whose corresponding port number is the first antenna port number, or a coefficient related to the ratio.

Optionally, the third coefficient may be determined according to the ratio of the maximum output power of the terminal to the first transmission power corresponding to the SRS resource whose corresponding number of antenna ports is the first number of antenna ports. For example, the third coefficient may be the ratio of the maximum output power of the terminal to the first transmission power corresponding to the SRS resource whose corresponding number of antenna ports is the first number of antenna ports, or a coefficient related to the ratio.

Optionally, the maximum output power of the terminal may be the maximum output power that the terminal can achieve; or, the maximum output power calculated by the terminal according to the power level of the terminal and/or the parameters indicated by the network device. For example, the maximum output power of the terminal may refer to PCMAX _,f,c ( i ).

Optionally, the terminal determines the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the third coefficient, and may scale the first transmission power using the third coefficient, and evenly distribute the scaled transmission power on the antenna port corresponding to the target SRS.

For example, for 4T6R, the base station configures a 4-port SRS resource and a 2-port SRS resource for the terminal. When the terminal transmits in the 2-port SRS resource, the maximum output power it supports is Pm. When the first transmission power P1 calculated by the terminal for the 2-port SRS resource is greater than Pm, the terminal cannot actually transmit the 2-port SRS with P1, and can only transmit the 2-port SRS with Pm. Then, in this case, the transmission power of the 4-port SRS can be adjusted, and the transmission power of the 4-port SRS can be scaled using the third coefficient s, for example, the transmission power of the 4-port SRS is multiplied by s, s=Pm/P1. In this way, the transmission power of the 2-port SRS and the 4-port SRS can always be fixed.

For example, for 4T6R, the base station configures a 4-port SRS resource and a 2-port SRS resource for the terminal. The terminal can also always use the third coefficient s=Pm/P1 for scaling the 4-port SRS resource without having to determine whether the power transmitted by the 2-port SRS resource is greater than Pm, where P1 is the first transmission power of the 2-port SRS resource.

Mode 6: The terminal may first determine the first transmission power corresponding to the target SRS, and then scale the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predetermined fixed value, or the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS is a predetermined fixed value.

The target SRS is an SRS with a first value of antenna ports, and the first SRS is an SRS with a second value of antenna ports. That is, the target SRS and the first SRS can be two SRSs corresponding to different numbers of antenna ports. For example, the target SRS can be an SRS with 4 antenna ports, and the first SRS can be an SRS with 2 antenna ports.

The transmission power of the antenna port corresponding to the target SRS is determined by scaling the first transmission power corresponding to the target SRS by a certain ratio, and then evenly dividing the scaled transmission power on the antenna port corresponding to the target SRS. It should be noted that the scaling ratio is not specifically limited here, as long as the ratio of the transmission power of the target SRS to the transmission power of the first SRS can be a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS can be a predetermined fixed value, or the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS can be a predetermined fixed value.

Optionally, the first condition may include one or more of the following conditions:

(1) At least one SRS resource in one or more SRS resource sets is an SRS resource in the SRS resource set corresponding to the first switching mode.

For example, if the first switching mode is the 4T6R antenna switching mode, then if one or more SRS resource sets are SRS resource sets corresponding to the 4T6R antenna switching mode, the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to one or more of the above methods 1 to 6.

(2) At least two SRS resources in at least one SRS resource in one or more SRS resource sets have different numbers of antenna ports corresponding to them.

For example, if at least one SRS resource in one or more SRS resource sets contains a 4-port SRS resource and a 2-port SRS resource, the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to one or more of the above methods 1 to 6.

(3) At least one SRS resource in one or more SRS resource sets includes at least one SRS resource with an antenna port number equal to a first specified value and at least one SRS resource with an antenna port number equal to a second specified value.

For example, the first specified value is 4 and the second specified value is 2. If at least one SRS resource in one or more SRS resource sets contains a 4-port SRS resource and a 2-port SRS resource, the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to one or more of the above methods 1 to 6.

(4) The number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets is equal to the third specified value.

For example, if the third specified value is 2, then if the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets is equal to 2, that is, the at least one SRS resource is a 2-port SRS resource, then the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to one or more of the above methods 1 to 6.

(5) At least one SRS resource in one or more SRS resource sets includes at least one SRS resource with 4 antenna ports and at least one SRS resource with 2 antenna ports; for example, if at least one SRS resource in one or more SRS resource sets includes a 4-port SRS resource and a 2-port SRS resource, the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to one or more of the above methods 1 to 6.

(6) The number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets is equal to 2; for example, if the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets is equal to 2, that is, the at least one SRS resource is a 2-port SRS resource, then the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to one or more of the above methods 1 to 6.

(7) The number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets is less than the maximum number of SRS antenna ports supported by the terminal.

For example, if the maximum number of SRS antenna ports supported by the terminal is 4, then if the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets is less than 4, such as the at least one SRS resource is a 2-port SRS resource, then the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to one or more of the above methods 1 to 6.

(8) The first transmission power corresponding to the SRS corresponding to at least one SRS resource in one or more SRS resource sets is greater than the maximum output power supported by at least one SRS resource.

For example, if there is an SRS resource in at least one SRS resource in one or more SRS resource sets, and the first transmission power corresponding to the SRS corresponding to the SRS resource is greater than the maximum output power supported by the SRS resource, then the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to one or more of the above methods 1 to 6.

(9) The first transmission power corresponding to the SRS corresponding to the SRS resource with the specified number of antenna ports in one or more SRS resource sets is greater than the maximum output power supported by the SRS resource with the specified number of antenna ports.

For example, if the number of antenna ports is specified to be 2, then if there is a 2-port SRS resource in at least one SRS resource in one or more SRS resource sets, and the first transmission power corresponding to the SRS corresponding to the 2-port SRS resource is greater than the maximum output power supported by the 2-port SRS resource, then the terminal can determine the transmission power of the antenna port corresponding to the target SRS according to one or more of the above methods 1 to 6.

According to the SRS transmission power determination method provided by the embodiment of the present invention, the terminal can only use one or more of the above methods 1 to 6 for the target SRS corresponding to the target SRS resource in the SRS resource set that meets the first condition to determine the transmission power of the antenna port corresponding to the target SRS, while for the SRS corresponding to the SRS resource in the other SRS resource set that does not meet the first condition, the existing SRS power control mechanism can still be used to determine the transmission power of the antenna port corresponding to the SRS, thereby improving the flexibility of SRS power control.

Optionally, the SRS transmission power determination method further includes: determining a first transmission power corresponding to the target SRS, scaling the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power corresponding to the SRS resource corresponding to the first SRS is a predefined fixed value, or the ratio of the transmission power of the antenna port corresponding to the target SRS to the transmission power of the antenna port corresponding to the first SRS is a predefined fixed value; wherein the target SRS is an SRS with a specified first number of antenna ports, and the first SRS is an SRS with a specified second number of antenna ports.

Specifically, the terminal may first determine the first transmission power corresponding to the target SRS, and then scale the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predefined fixed value, or the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS is a predefined fixed value.

The target SRS is an SRS with a first value of antenna ports, and the first SRS is an SRS with a second value of antenna ports. That is, the target SRS and the first SRS can be two SRSs corresponding to different numbers of antenna ports. For example, the target SRS can be an SRS with 4 antenna ports, and the first SRS can be an SRS with 2 antenna ports.

The transmission power of the antenna port corresponding to the target SRS is determined by scaling the first transmission power corresponding to the target SRS by a certain ratio, and then evenly dividing the scaled transmission power on the antenna port corresponding to the target SRS. It should be noted that the scaling ratio is not specifically limited here, as long as the ratio of the transmission power of the target SRS to the transmission power of the first SRS can be a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS can be a predetermined fixed value, or the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS can be a predetermined fixed value.

Optionally, the SRS transmission power determination method further includes: receiving a first signaling sent by a network device, the first signaling being used to indicate a method for determining the SRS transmission power.

Specifically, in an embodiment of the present invention, the network device may send a first signaling to the terminal, and the first signaling is used to indicate the method for determining the SRS transmission power. That is, the terminal may determine the method for determining the transmission power of the antenna port corresponding to the SRS according to the instruction of the network device. For example, the network device may instruct the terminal to determine the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets configured by the network device.

The first signaling mentioned above may be a Radio Resource Control (RRC) signaling, or any other signaling that can be used by a network device to send indication information to a terminal, and no specific limitation is made here.

The SRS transmission power determination method provided by the embodiment of the present invention can use different methods to determine the transmission power of the antenna port corresponding to the SRS according to different instructions sent by the network equipment, thereby improving the flexibility of SRS power control.

FIG2 is a second flow chart of the SRS transmission power determination method provided by an embodiment of the present invention. The SRS transmission power determination method can be applied to a network device (such as a base station). As shown in FIG2, the SRS transmission power determination method includes the following steps:

Step 200: Determine the transmission power of the antenna port corresponding to the target SRS by determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets; the target SRS is the SRS corresponding to the target SRS resource in one or more SRS resource sets.

Step 201: Determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs according to the configuration of at least one SRS resource in one or more SRS resource sets.

Optionally, the configuration of at least one SRS resource in one or more SRS resource sets includes the configuration of all or part of the SRS resources in the one or more SRS resource sets.

Optionally, the configuration of all SRS resources in one or more SRS resource sets, that is, the configuration of each SRS resource in the one or more SRS resource sets.

Specifically, the network device can configure one or more SRS resource sets for the terminal, and each SRS resource set includes one or more SRS resources.

In the embodiment of the present invention, after the terminal determines the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, the terminal can send the target SRS to the network device according to the transmission power of the antenna port corresponding to the determined target SRS.

After the network device receives the target SRS, the transmission power of the antenna port corresponding to the target SRS is determined by the configuration of each SRS resource in one or more SRS resource sets. Then, the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs can be determined according to the configuration of at least one SRS resource in one or more SRS resource sets. Optionally, the relative relationship can be the ratio between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs. Other SRS refers to the SRS corresponding to other SRS resources in the one or more SRS resource sets except the target SRS resource.

For example, the SRS resource set configured by the network device for the terminal includes 2-port SRS resources and 4-port SRS resources. After the terminal sends SRS to the network device, the network device can determine the ratio between the transmission power of the antenna port corresponding to the 2-port SRS and the transmission power of the antenna port corresponding to the 4-port SRS when determining the DL CSI based on the configuration of at least one SRS resource in the SRS resource set, thereby obtaining the relative channel quality between the downlink receiving antennas to guide the downlink scheduling.

Optionally, the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs may be a ratio determined according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets, or may be a predefined fixed value.

Optionally, at least one SRS resource in one or more SRS resource sets includes all or part of the SRS resources in the one or more SRS resource sets.

Optionally, all SRS resources in one or more SRS resource sets, that is, each SRS resource in the one or more SRS resource sets.

For example, the network device can determine the scheduling information of the downlink channel/downlink signal based on the ratio of the transmission power of the target SRS to the transmission power of the first SRS as a predefined fixed value; or, determine the scheduling information of the downlink channel/downlink signal based on the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS as a predefined fixed value; or, determine the scheduling information of the downlink channel/downlink signal based on the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS as a predefined fixed value. Optionally, the downlink channel is a physical downlink shared channel (PDSCH).

The SRS transmission power determination method provided by the embodiment of the present invention can determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs according to the configuration of at least one SRS resource in one or more SRS resource sets, so that no matter what structure the RF chain of the terminal is, the understanding of the SRS transmission power by the network device can be consistent with the transmission power of the SRS actually sent by the terminal.

Optionally, determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs according to the configuration of at least one SRS resource in one or more SRS resource sets includes: Determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets.

Specifically, in the embodiment of the present invention, the network device can determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets. For example, the ratio between the transmission powers of the antenna ports corresponding to each SRS can be determined according to the ratio (direct proportion or inverse proportion) of the number of antenna ports corresponding to each SRS resource. For example, when determining the DL CSI, the network device can determine that the transmission power of the antenna port corresponding to the 2-port SRS is 1/2 or 2 times the transmission power of the antenna port corresponding to the 4-port SRS according to the number of antenna ports, thereby obtaining the relative channel quality between the downlink receiving antennas, thereby guiding the downlink scheduling.

Optionally, the SRS transmission power determination method further includes: sending a first signaling to the terminal, the first signaling is used to indicate a method for determining the SRS transmission power.

Specifically, in an embodiment of the present invention, the network device may send a first signaling to the terminal, and the first signaling is used to indicate the method for determining the SRS transmission power, so that the terminal can determine the method for determining the transmission power of the antenna port corresponding to the SRS according to the instruction of the network device. For example, the network device may instruct the terminal to determine the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets configured by the network device.

The first signaling mentioned above may be RRC signaling, or any other signaling that can be used by a network device to send indication information to a terminal, and no specific limitation is made here.

The SRS transmission power determination method provided by the embodiment of the present invention can use different methods to determine the transmission power of the antenna port corresponding to the SRS according to different instructions sent by the network equipment, thereby improving the flexibility of SRS power control.

The following is an example of a specific implementation to illustrate the above-mentioned SRS transmission power determination method.

Implementation Example 1: Determine the transmission power of SRS according to the maximum number of antenna ports configured by multiple SRS resources. The specific steps are as follows: Step 1-1, obtain the configuration parameters of multiple SRS resources sent by the network device; Step 1-2, determine the transmission power of SRS according to the maximum number of antenna ports configured by multiple SRS resources.

For the core step (step 2): consider K SRS resources, the number of antenna ports of these K SRS resources are p ₁ , p ₂ , ..., p _K respectively, then determine the transmission power of the SRS ports corresponding to these SRS resources according to max(p ₁ ,p ₂ , ...,p _K ).

Optionally, for any one of the SRS resources, the transmission power calculated according to the power control parameter is evenly divided according to the max(p ₁ ,p ₂ ,...,p _K ) ports and used as the transmission power of each SRS antenna port corresponding to the SRS resource.

Example 1: For the SRS antenna switching pattern 4T6R, the base station configures a 4-port SRS resource and a 2-port SRS resource for the terminal. For any SRS resource, the transmission power corresponding to the SRS resource will be calculated according to the power control parameter and evenly divided according to the 4 ports as the transmission power of each SRS antenna port corresponding to the SRS resource.

Optionally, the transmission power of other SRS resources is determined according to the transmission power of the SRS resource with the largest number of configured antenna ports among multiple SRS resources.

Example 2: Take the base station as the terminal and configure an SRS resource set with usage as antennaSwitching. The SRS resource set includes a 4-port SRS resource and a 2-port SRS resource. The transmission power corresponding to each antenna port of the SRS resource with the largest number of antenna ports (4-port SRS resource) is calculated according to the power control parameter as the transmission power of each SRS antenna port of other SRS resources (2-port SRS resource).

Embodiment 2: Determine the transmission power of SRS according to the relative relationship of the number of antenna ports configured for multiple SRS resources. The specific steps are as follows: Step 2-1, obtain the configuration parameters of multiple SRS resources sent by the network device; Step 2-2, determine the transmission power of SRS according to the relative relationship of the number of antenna ports configured for multiple SRS resources.

Optionally, the relative relationship is a ratio of the number of antenna ports. For example, for any SRS resource, it is a ratio of the number of antenna ports configured for the SRS resource to the maximum number of antenna ports configured for multiple SRS resources, m/n, where m is the number of SRS ports configured for the SRS resource, and n is the maximum number of antenna ports configured for multiple SRS resources.

Optionally, for a given SRS resource, the specific method of determining the SRS transmission power according to the relative relationship of the number of antenna ports configured for multiple SRS resources is: determining the transmission power of the SRS resource according to the power control parameter, and then scaling the transmission power using m/n, and evenly distributing the scaled power to each SRS port corresponding to the SRS resource. Optionally, the SRS resource with the largest number of SRS antenna ports is not scaled using m/n.

Example 3: Take multiple SRS resources as SRS resources configured as the same time domain type in the SRS resources used for DL CSI acquisition. For example, multiple SRS resources are SRS resources whose high-layer signaling resourceType is configured as "aperiodic" and whose high-layer signaling usage is configured as "antennaSwitching". Assume that the multiple SRS resources are a 4-port SRS resource and a 2-port SRS resource. For a 4-port SRS resource, the transmission power corresponding to the SRS resource will be calculated according to the power control parameter and evenly divided according to the 4 ports as the transmission power of each antenna port configured; for a 2-port SRS resource, the transmission power corresponding to the SRS resource will be calculated according to the power control parameter and scaled by 2/4 (i.e., 1/2), and evenly distributed to the 2 SRS antenna ports included therein after scaling. Optionally, the transmission power corresponding to the SRS is calculated according to the power control parameter in the following manner (the explanation of each parameter in the formula can be referred to Section 7.3.1 of 3GPP protocol TS38.213 V16.7.0 (2021-09)):

Optionally, for a given SRS resource, the specific method of determining the transmission power of the SRS according to the relative relationship of the number of antenna ports configured for multiple SRS resources is: according to the transmission power of the SRS resource determined by the power control parameter and the scaling factor, the calculated transmission power is evenly distributed to each SRS antenna port corresponding to the SRS resource. The formula for calculating the transmission power of the SRS resource using the power control parameter and the scaling factor includes a scaling factor with a value of m/n. Optionally, the SRS resource with the largest number of SRS antenna ports is not scaled using m/n.

Example 4: The transmission power of the SRS resource is calculated using the power control parameter and the scaling factor using the following formula (where m is the number of SRS ports configured for the SRS resource, n is the maximum number of antenna ports configured for multiple SRS resources, and the explanation of other parameters can be found in Section 7.3.1 of 3GPP protocol TS38.213 V16.7.0 (2021-09)):

The terminal will evenly distribute the transmission power of the SRS resource calculated according to the above formula on all antenna ports where the SRS resource is configured.

The methods and devices provided in each embodiment of the present invention are based on the same application concept. Since the principles of solving problems by the methods and devices are similar, the implementation of the devices and methods can refer to each other, and the repetitions will not be repeated.

FIG3 is a schematic diagram of the structure of the terminal provided by the embodiment of the present invention. As shown in FIG3, the terminal includes a memory 320, a transceiver 310 and a processor 300; wherein the processor 300 and the memory 320 can also be physically arranged separately.

Memory 320 is used to store computer programs; transceiver 310 is used to send and receive data under the control of processor 300.

Specifically, the transceiver 310 is used to receive and send data under the control of the processor 300.

In FIG. 3 , the bus architecture may include any number of interconnected buses and bridges, specifically, various circuits of one or more processors represented by processor 300 and memory represented by memory 320 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in the present invention. The bus interface provides an interface. The transceiver 310 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes a wireless channel, a wired channel, an optical cable, and other transmission media. For different user devices, the user interface 330 can also be an interface that can connect to external or internal devices. The connected devices include but are not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 can store data used by the processor 300 when performing operations.

The processor 300 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

The processor 300 calls the computer program stored in the memory 320 to execute any of the SRS transmission power determination methods provided by the embodiments of the present invention according to the obtained executable instructions and based on the transceiver 310, for example: determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, the target SRS being the SRS corresponding to the target SRS resource in one or more SRS resource sets; sending the target SRS according to the transmission power.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first number of antenna ports; wherein the first number of antenna ports is the maximum number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets, or the first number of antenna ports is the minimum number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS; or dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the first coefficient; or determining the second transmission power corresponding to the target SRS according to the first coefficient, and determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power; wherein the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of the first antenna ports.

Optionally, the first transmission power is determined according to one or more of the following: a power control parameter corresponding to the target SRS resource; a bandwidth corresponding to the target SRS resource; a path loss reference signal corresponding to the target SRS resource; a target received power corresponding to the target SRS resource; a partial path loss compensation factor corresponding to the target SRS resource; a closed-loop power control parameter corresponding to the target SRS resource; a spatial correlation parameter corresponding to the target SRS resource; or a maximum output power of the terminal.

Optionally, according to the first transmission power and the first coefficient corresponding to the target SRS, determining the transmission power of the antenna port corresponding to the target SRS includes: scaling the first transmission power using the first coefficient, dividing the scaled transmission power evenly on the antenna port corresponding to the target SRS, and using the result of the even division as the transmission power of the antenna port corresponding to the target SRS.

Optionally, the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of first antenna ports, including: the first coefficient is determined according to the ratio of the number of antenna ports corresponding to the target SRS and the number of first antenna ports.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power includes: dividing the second transmission power equally on the antenna port corresponding to the target SRS, and using the result of the equalization as the transmission power of the antenna port corresponding to the target SRS.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets includes: determining whether the configuration of at least one SRS resource in one or more SRS resource sets meets the first condition; when the configuration of at least one SRS resource in one or more SRS resource sets meets the first condition, performing one or more of the following: equally dividing the first transmission power corresponding to the target SRS according to the number of the first antenna ports, and using the result of the equalization as the transmission power of the antenna port corresponding to the target SRS; and equally dividing the first transmission power corresponding to the target SRS according to the number of the first antenna ports. Divide the first transmission power by the number of the first antenna ports, and use the result as the transmission power of the antenna port corresponding to the target SRS; Equally divide the first transmission power corresponding to the target SRS on the antenna ports corresponding to the target SRS; Determine the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the second coefficient; Determine the third transmission power corresponding to the target SRS according to the second coefficient, and determine the transmission power of the antenna port corresponding to the target SRS according to the third transmission power; Determine the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the third coefficient. The invention relates to a method for transmitting a first transmission power of an antenna port of a target SRS; determining a first transmission power corresponding to a target SRS, and scaling the first transmission power so that a ratio of a transmission power of the target SRS to a transmission power of the first SRS is a predetermined fixed value, or a ratio of a transmission power of an SRS resource corresponding to the target SRS to a transmission power of an SRS resource corresponding to the first SRS is a predetermined fixed value, or a ratio of a transmission power of the antenna port of the target SRS to a transmission power of the antenna port of the first SRS is a predetermined fixed value; wherein the number of the first antenna port is at least one SRS in one or more SRS resource sets. The maximum or minimum value of the number of antenna ports corresponding to the RS resource; the second coefficient is a default value or a coefficient determined according to the number of antenna ports corresponding to the target SRS and the first number of antenna ports; the third coefficient is a coefficient determined according to the maximum output power that can be achieved by the SRS or SRS resource whose corresponding number of antenna ports is the first number of antenna ports and the first transmission power corresponding to the SRS or SRS resource whose corresponding number of ports is the first number of antenna ports; or the third coefficient is a coefficient determined according to the maximum output power of the terminal and the first transmission power corresponding to the SRS resource whose corresponding number of antenna ports is the first number of antenna ports.

Optionally, the first condition includes one or more of the following conditions: at least one SRS resource in one or more SRS resource sets is an SRS resource in an SRS resource set corresponding to the first switching mode; at least two SRS resources in at least one SRS resource in one or more SRS resource sets have different numbers of antenna ports corresponding to them; at least one SRS resource in one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to a first specified value and at least one SRS resource with a number of antenna ports equal to a second specified value; at least one SRS resource in one or more SRS resource sets has a number of antenna ports equal to a third specified value; at least one SRS resource in one or more SRS resource sets includes at least one antenna port. SRS resources with a port number equal to 4 and at least one SRS resource with an antenna port number equal to 2; the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets is equal to 2; the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets is less than the maximum number of SRS antenna ports supported by the terminal; the first transmission power corresponding to the SRS corresponding to at least one SRS resource in one or more SRS resource sets is greater than the maximum output power supported by at least one SRS resource; the first transmission power corresponding to the SRS corresponding to the SRS resource with a specified number of antenna ports in one or more SRS resource sets is greater than the maximum output power supported by the corresponding SRS resource with a specified number of antenna ports.

Optionally, it further includes: determining a first transmission power corresponding to the target SRS, scaling the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power corresponding to the SRS resource corresponding to the first SRS is a predefined fixed value, or the ratio of the transmission power of the antenna port corresponding to the target SRS to the transmission power of the antenna port corresponding to the first SRS is a predefined fixed value; wherein the target SRS is an SRS with a specified first value of antenna ports, and the first SRS is an SRS with a specified second value of antenna ports.

Optionally, at least one SRS resource in one or more SRS resource sets is an SRS resource used for the same purpose.

Optionally, at least one SRS resource in one or more SRS resource sets is used for the same purpose and is configured as an SRS resource of the same time domain type.

Optionally, the SRS transmission power determination method further includes: receiving a first signaling sent by a network device, the first signaling being used to indicate a method for determining the SRS transmission power.

FIG4 is a schematic diagram of the structure of a network device provided by an embodiment of the present invention. As shown in FIG4 , the network device includes a memory 420, a transceiver 410 and a processor 400; wherein the processor 400 and the memory 420 can also be physically arranged separately.

Memory 420 is used to store computer programs; transceiver 410 is used to send and receive data under the control of processor 400.

Specifically, the transceiver 410 is used to receive and send data under the control of the processor 400.

In FIG. 4 , the bus architecture may include any number of interconnected buses and bridges, specifically, various circuits of one or more processors represented by processor 400 and memory represented by memory 420 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in the present invention. The bus interface provides an interface. The transceiver 410 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes a wireless channel, a wired channel, an optical cable, and other transmission media.

The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.

The processor 400 may be a CPU, ASIC, FPGA or CPLD, and the processor may also adopt a multi-core architecture.

The processor 400 calls the computer program stored in the memory 420 to execute any of the SRS transmission power determination methods provided by the embodiments of the present invention according to the obtained executable instructions, for example: the transmission power of the antenna port corresponding to the target SRS is determined by determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets; the target SRS is the SRS corresponding to the target SRS resource in one or more SRS resource sets; according to the configuration of at least one SRS resource in one or more SRS resource sets, determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs.

Optionally, determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs according to the configuration of at least one SRS resource in one or more SRS resource sets includes: determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets.

Optionally, the SRS transmission power determination method further includes: sending a first signaling to the terminal, the first signaling is used to indicate a method for determining the SRS transmission power.

It should be noted that the above-mentioned terminal and network equipment provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

FIG5 is one of the structural schematic diagrams of the SRS transmission power determination device provided by the embodiment of the present invention. The SRS transmission power determination device can be applied to a terminal. As shown in FIG5, the SRS transmission power determination device includes: a first determination unit 500, which is used to determine the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, and the target SRS is the SRS corresponding to the target SRS resource in one or more SRS resource sets; a first sending unit 510, which is used to send the target SRS according to the transmission power.

Optionally, the first determination unit 500 is used to: determine the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first number of antenna ports; wherein the first number of antenna ports is the maximum number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets, or the first number of antenna ports is the minimum number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: Equally dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the equalization as the transmission power of the antenna port corresponding to the target SRS; or, dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the first coefficient; or determining the second transmission power corresponding to the target SRS according to the first coefficient, and determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power; wherein the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of the first antenna ports.

Optionally, the first transmission power is determined according to one or more of the following: a power control parameter corresponding to the target SRS resource; a bandwidth corresponding to the target SRS resource; a path loss reference signal corresponding to the target SRS resource; a target received power corresponding to the target SRS resource; a partial path loss compensation factor corresponding to the target SRS resource; a closed-loop power control parameter corresponding to the target SRS resource; a spatial correlation parameter corresponding to the target SRS resource; or a maximum output power of the terminal.

Optionally, according to the first transmission power and the first coefficient corresponding to the target SRS, determining the transmission power of the antenna port corresponding to the target SRS includes: scaling the first transmission power using the first coefficient, dividing the scaled transmission power evenly on the antenna port corresponding to the target SRS, and using the result of the even division as the transmission power of the antenna port corresponding to the target SRS.

Optionally, the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of first antenna ports, including: the first coefficient is determined according to the ratio of the number of antenna ports corresponding to the target SRS and the number of first antenna ports.

Optionally, determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power includes: dividing the second transmission power equally on the antenna port corresponding to the target SRS, and using the result of the equalization as the transmission power of the antenna port corresponding to the target SRS.

Optionally, the first determination unit 500 is used to: determine whether the configuration of at least one SRS resource in one or more SRS resource sets meets the first condition; if the configuration of at least one SRS resource in one or more SRS resource sets meets the first condition, perform one or more of the following: divide the first transmission power corresponding to the target SRS according to the number of the first antenna ports, and use the result of the equalization as the transmission power of the antenna port corresponding to the target SRS; divide the first transmission power corresponding to the target SRS by the number of the first antenna ports, and use the result of the division as the target SRS; S corresponding to the antenna port; the first transmission power corresponding to the target SRS is evenly divided on the antenna port corresponding to the target SRS; the transmission power of the antenna port corresponding to the target SRS is determined according to the first transmission power corresponding to the target SRS and the second coefficient; the third transmission power corresponding to the target SRS is determined according to the second coefficient, and the transmission power of the antenna port corresponding to the target SRS is determined according to the third transmission power; the transmission power of the antenna port corresponding to the target SRS is determined according to the first transmission power corresponding to the target SRS and the third coefficient; determine the target SRS corresponding to The first transmission power is scaled so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predetermined fixed value, or the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS is a predetermined fixed value; wherein the first number of antenna ports is the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets. The second coefficient is a preset value or a coefficient determined according to the number of antenna ports corresponding to the target SRS and the first number of antenna ports; the third coefficient is a coefficient determined according to the maximum output power that can be achieved by the SRS or SRS resources whose corresponding number of antenna ports is the first number of antenna ports and the first transmission power corresponding to the SRS or SRS resources whose corresponding number of ports is the first number of antenna ports; or the third coefficient is a coefficient determined according to the maximum output power of the terminal and the first transmission power corresponding to the SRS resources whose corresponding number of antenna ports is the first number of antenna ports.

Optionally, the first condition includes one or more of the following conditions: at least one SRS resource in one or more SRS resource sets is an SRS resource in an SRS resource set corresponding to the first switching mode; at least two SRS resources in at least one SRS resource in one or more SRS resource sets have different numbers of antenna ports corresponding to them; at least one SRS resource in one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to a first specified value and at least one SRS resource with a number of antenna ports equal to a second specified value; at least one SRS resource in one or more SRS resource sets has a number of antenna ports equal to a third specified value; at least one SRS resource in one or more SRS resource sets includes at least one antenna port. SRS resources with a port number equal to 4 and at least one SRS resource with an antenna port number equal to 2; the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets is equal to 2; the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets is less than the maximum number of SRS antenna ports supported by the terminal; the first transmission power corresponding to the SRS corresponding to at least one SRS resource in one or more SRS resource sets is greater than the maximum output power supported by at least one SRS resource; the first transmission power corresponding to the SRS corresponding to the SRS resource with a specified number of antenna ports in one or more SRS resource sets is greater than the maximum output power supported by the corresponding SRS resource with a specified number of antenna ports.

Optionally, the first determination unit 500 is further used to: determine the first transmission power corresponding to the target SRS, and scale the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power corresponding to the SRS resource corresponding to the first SRS is a predetermined fixed value, or the ratio of the transmission power of the antenna port corresponding to the target SRS to the transmission power of the antenna port corresponding to the first SRS is a predetermined fixed value; Wherein, the target SRS is an SRS with a specified first value of antenna ports, and the first SRS is an SRS with a specified second value of antenna ports.

Optionally, at least one SRS resource in one or more SRS resource sets is an SRS resource used for the same purpose.

Optionally, at least one SRS resource in one or more SRS resource sets is used for the same purpose and is configured as an SRS resource of the same time domain type.

Optionally, the SRS transmission power determination device further includes: a receiving unit, used to receive a first signaling sent by a network device, the first signaling is used to indicate a method for determining the SRS transmission power.

FIG6 is a second structural schematic diagram of an SRS transmission power determination device provided by an embodiment of the present invention. The SRS transmission power determination device can be applied to a network device. As shown in FIG6 , the SRS transmission power determination device includes: a second determination unit 600, which is used to determine the transmission power of the antenna port corresponding to the target SRS by determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets; the target SRS is the SRS corresponding to the target SRS resource in one or more SRS resource sets; a third determination unit 610, which is used to determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs according to the configuration of at least one SRS resource in one or more SRS resource sets.

Optionally, the third determination unit 610 is used to: Determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna ports corresponding to other SRSs according to the number of antenna ports corresponding to at least one SRS resource in one or more SRS resource sets.

Optionally, the SRS transmission power determination device further includes: a second sending unit, used to send a first signaling to the terminal, the first signaling is used to indicate a method for determining the SRS transmission power.

It should be noted that the division of units in the embodiments of the present invention is schematic and is only a logical functional division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present invention may be integrated into a processing unit, or each unit may exist as a separate entity, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the SRS transmission power determination method of each embodiment of the present invention. The aforementioned storage media include: USB disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

It should be noted that the SRS transmission power determination device provided in the embodiment of the present invention can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail.

On the other hand, the embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and the computer program is used to enable the computer to execute the SRS transmission power determination method provided by the above embodiments, including: determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, the target SRS is the SRS corresponding to the target SRS resource in one or more SRS resource sets; sending the target SRS according to the transmission power.

On the other hand, the embodiment of the present invention further provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, the computer program is used to make the computer execute the SRS transmission power determination method provided by at least one of the above embodiments, including: determining the transmission power of the antenna port corresponding to the target SRS by determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets; the target SRS is the SRS corresponding to the target SRS resource in one or more SRS resource sets; according to the configuration of at least one SRS resource in one or more SRS resource sets, determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs.

Computer-readable storage media can be any available media or data storage devices that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, flash memories (NAND FLASH), solid-state drives (SSDs), etc.).

The technical solution provided by the embodiment of the present invention can be applied to a variety of systems, especially 5G systems. For example, the applicable systems can be global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new radio (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include core network parts, such as the Evolved Packet System (EPS), 5G System (5GS), etc.

The terminal to which the embodiments of the present invention relates may refer to a device that provides voice and/or data connectivity to a user, a handheld device with wireless connection function, or other processing equipment connected to a wireless modem, etc. In different systems, the name of the terminal may also be different. For example, in a 5G system, the terminal may be called a user equipment (UE). A wireless terminal device may communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and/or data with a radio access network. For example, Personal Communication Service (PCS) phones, wireless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) and other equipment. Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal equipment, access terminal equipment, user terminal equipment, user agent, user device, but it is not limited in the embodiments of the present invention.

The network device to which the embodiments of the present invention relate may be a base station, which may include multiple cells providing services to the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device on an air intermediate plane through one or more sectors, or may be called by other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air intermediate plane. For example, the network equipment related to the embodiments of the present invention may be a network equipment (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network equipment (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network equipment (evolutional Node B, eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., but is not limited in the embodiments of the present invention. In some network structures, network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and centralized units and distributed units may also be geographically separated.

Network equipment and terminal equipment can each use one or more antennas for multiple input multiple output (MIMO) transmission. MIMO transmission can be single user MIMO (SU-MIMO) or multiple user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.

It should be understood by those with ordinary knowledge in the art that the embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory and optical memory, etc.) containing computer-usable program code.

The present invention is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and/or box in the flowchart and/or block diagram, as well as the combination of processes and/or boxes in the flowchart and/or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These processor executable instructions may also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce computer-implemented processing, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

The embodiments of the present invention are described above in conjunction with the attached drawings, but the present invention is not limited to the above specific implementations, which are only illustrative and not restrictive. Under the inspiration of the present invention, people with ordinary knowledge in the field can make many forms without departing from the purpose of the present invention and the scope of protection of the patent application, all of which are within the protection of the present invention.

100-101: Steps

Claims (18)

A method for determining SRS transmission power, comprising: Determining the transmission power of an antenna port corresponding to a target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, the target SRS being the SRS corresponding to the target SRS resource in the one or more SRS resource sets; Sending the target SRS according to the transmission power; Determining the transmission power of an antenna port corresponding to a target SRS according to the configuration of at least one SRS resource in the one or more SRS resource sets comprises: determining the transmission power of an antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets; The determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets comprises: determining the transmission power of the antenna port corresponding to the target SRS according to the first number of antenna ports; wherein the first number of antenna ports is the maximum number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets, or the first number of antenna ports is the minimum number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets; Or, wherein the determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in the one or more SRS resource sets comprises: determining whether the configuration of at least one SRS resource in the one or more SRS resource sets meets the first condition; When the configuration of at least one SRS resource in the one or more SRS resource sets meets the first condition, one or more of the following items are executed: The first transmission power corresponding to the target SRS is evenly divided according to the number of the first antenna ports, and the result of the even division is used as the transmission power of the antenna port corresponding to the target SRS; The first transmission power corresponding to the target SRS is divided by the number of the first antenna ports, and the result of the division is used as the transmission power of the antenna port corresponding to the target SRS; The first transmission power corresponding to the target SRS is evenly divided on the antenna port corresponding to the target SRS; According to the first transmission power corresponding to the target SRS and the second coefficient, the transmission power of the antenna port corresponding to the target SRS is determined; Determine the third transmission power corresponding to the target SRS according to the second coefficient, and determine the transmission power of the antenna port corresponding to the target SRS according to the third transmission power; Determine the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the third coefficient; Determine the first transmission power corresponding to the target SRS, and scale the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predetermined fixed value, or the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS is a predetermined fixed value; Among them, the first antenna port number is the maximum or minimum value of the antenna port numbers corresponding to at least one SRS resource in the one or more SRS resource sets; the second coefficient is a default value or a coefficient determined according to the antenna port number corresponding to the target SRS and the first antenna port number; the third coefficient is a coefficient determined according to the maximum output power that can be achieved by the SRS or SRS resource whose corresponding antenna port number is the first antenna port number and the first transmission power corresponding to the SRS or SRS resource whose corresponding port number is the first antenna port number; or the third coefficient is a coefficient determined according to the maximum output power of the terminal and the first transmission power corresponding to the SRS resource whose corresponding antenna port number is the first antenna port number; The first condition includes one or more of the following conditions: at least one SRS resource in the one or more SRS resource sets is an SRS resource in the SRS resource set corresponding to the first switching mode; at least two SRS resources in the one or more SRS resource sets have different numbers of antenna ports corresponding to them; at least one SRS resource in the one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to a first specified value and at least one SRS resource with a number of antenna ports equal to a second specified value; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is equal to a third specified value; at least one SRS resource in the one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to 4 and at least one SRS resource with a number of antenna ports equal to 2; The number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is equal to 2; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is less than the maximum number of SRS antenna ports supported by the terminal; the first transmission power corresponding to the SRS corresponding to at least one SRS resource in the one or more SRS resource sets is greater than the maximum output power supported by the at least one SRS resource; the first transmission power corresponding to the SRS corresponding to the SRS resource whose corresponding number of antenna ports in the one or more SRS resource sets is the specified number of antenna ports is greater than the maximum output power supported by the SRS resource whose corresponding number of antenna ports is the specified number of antenna ports. The SRS transmission power determination method as described in claim 1, wherein the determination of the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports comprises: Evenly dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the even division as the transmission power of the antenna port corresponding to the target SRS; or, Dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS. The SRS transmission power determination method as described in claim 1, wherein the determination of the transmission power of the antenna port corresponding to the target SRS according to the number of the first antenna ports comprises: Determining the transmission power of the antenna port corresponding to the target SRS according to the first transmission power and the first coefficient corresponding to the target SRS; or, Determining the second transmission power corresponding to the target SRS according to the first coefficient, and determining the transmission power of the antenna port corresponding to the target SRS according to the second transmission power; Wherein, the first coefficient is determined according to the number of antenna ports corresponding to the target SRS and the number of the first antenna ports. The SRS transmission power determination method as described in claim 2 or 3, wherein the first transmission power is determined according to one or more of the following: The power control parameter corresponding to the target SRS resource; The bandwidth corresponding to the target SRS resource; The path loss reference signal corresponding to the target SRS resource; The target received power corresponding to the target SRS resource; The partial path loss compensation factor corresponding to the target SRS resource; The closed-loop power control parameter corresponding to the target SRS resource; The spatial correlation parameter corresponding to the target SRS resource; The maximum output power of the terminal. The SRS transmission power determination method as described in claim 3, wherein the transmission power of the antenna port corresponding to the target SRS is determined according to the first transmission power and the first coefficient corresponding to the target SRS, including: Scaling the first transmission power using the first coefficient, dividing the scaled transmission power evenly on the antenna port corresponding to the target SRS, and using the result of the even division as the transmission power of the antenna port corresponding to the target SRS. The SRS transmission power determination method as described in claim 3 or 5, wherein the first coefficient is determined based on the number of antenna ports corresponding to the target SRS and the number of first antenna ports, including: the first coefficient is determined based on the ratio of the number of antenna ports corresponding to the target SRS and the number of first antenna ports. The SRS transmission power determination method as described in claim 3, wherein the determination of the transmission power of the antenna port corresponding to the target SRS according to the second transmission power comprises: Equally dividing the second transmission power on the antenna port corresponding to the target SRS, and using the result of the equalization as the transmission power of the antenna port corresponding to the target SRS. The SRS transmission power determination method as described in any one of claim items 1 to 3, 5, and 7, further comprising: Determining a first transmission power corresponding to the target SRS, scaling the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power corresponding to the SRS resource corresponding to the first SRS is a predetermined fixed value, or the ratio of the transmission power of the antenna port corresponding to the target SRS to the transmission power of the antenna port corresponding to the first SRS is a predetermined fixed value; Wherein, the target SRS is an SRS with a specified first number of antenna ports, and the first SRS is an SRS with a specified second number of antenna ports. The SRS transmission power determination method as described in any one of claims 1 to 3, 5, and 7, wherein at least one SRS resource in the one or more SRS resource sets is an SRS resource used for the same purpose. The SRS transmission power determination method as described in any one of claims 1 to 3, 5, and 7, wherein at least one SRS resource in the one or more SRS resource sets is used for the same purpose and is configured as an SRS resource of the same time domain type. The SRS transmission power determination method as described in any one of claim items 1 to 3, 5, and 7, wherein the SRS transmission power determination method further comprises: Receiving a first signaling sent by a network device, the first signaling being used to indicate a method for determining the SRS transmission power. A method for determining SRS transmission power, comprising: The transmission power of the antenna port corresponding to the target SRS is determined by determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets; the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; According to the configuration of at least one SRS resource in the one or more SRS resource sets, determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs; According to the configuration of at least one SRS resource in the one or more SRS resource sets, determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs, including: According to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets, determine the ratio between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs, where the other SRSs are the SRSs corresponding to other SRS resources in the one or more SRS resource sets except the target SRS resource. The SRS transmission power determination method as described in claim 12, wherein the SRS transmission power determination method further comprises: Sending a first signaling to the terminal, the first signaling is used to indicate a method for determining the SRS transmission power. A terminal includes a memory, a transceiver, and a processor: The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations based on the transceiver: According to the configuration of at least one SRS resource in one or more SRS resource sets, determine the transmission power of the antenna port corresponding to the target SRS, the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; Send the target SRS according to the transmission power; The determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in the one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets; The determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets includes: determining the transmission power of the antenna port corresponding to the target SRS according to the first number of antenna ports; wherein the first number of antenna ports is the maximum number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets, or the first number of antenna ports is the minimum number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets; Or, Wherein, the transmission power of the antenna port corresponding to the target SRS is determined according to the configuration of at least one SRS resource in the one or more SRS resource sets, including: Determining whether the configuration of at least one SRS resource in the one or more SRS resource sets meets the first condition; When the configuration of at least one SRS resource in the one or more SRS resource sets meets the first condition, performing one or more of the following: Dividing the first transmission power corresponding to the target SRS according to the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS; Dividing the first transmission power corresponding to the target SRS by the number of the first antenna ports, and using the result of the division as the transmission power of the antenna port corresponding to the target SRS; The first transmission power corresponding to the target SRS is evenly divided on the antenna port corresponding to the target SRS; According to the first transmission power corresponding to the target SRS and the second coefficient, the transmission power of the antenna port corresponding to the target SRS is determined; According to the second coefficient, the third transmission power corresponding to the target SRS is determined, and according to the third transmission power, the transmission power of the antenna port corresponding to the target SRS is determined; According to the first transmission power corresponding to the target SRS and the third coefficient, the transmission power of the antenna port corresponding to the target SRS is determined; Determine the first transmission power corresponding to the target SRS, and scale the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predefined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predefined fixed value, or the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS is a predefined fixed value; Among them, the first antenna port number is the maximum or minimum value of the antenna port numbers corresponding to at least one SRS resource in the one or more SRS resource sets; the second coefficient is a default value or a coefficient determined according to the antenna port number corresponding to the target SRS and the first antenna port number; the third coefficient is a coefficient determined according to the maximum output power that can be achieved by the SRS or SRS resource whose corresponding antenna port number is the first antenna port number and the first transmission power corresponding to the SRS or SRS resource whose corresponding port number is the first antenna port number; or the third coefficient is a coefficient determined according to the maximum output power of the terminal and the first transmission power corresponding to the SRS resource whose corresponding antenna port number is the first antenna port number; The first condition includes one or more of the following conditions: at least one SRS resource in the one or more SRS resource sets is an SRS resource in the SRS resource set corresponding to the first switching mode; at least two SRS resources in the one or more SRS resource sets have different numbers of antenna ports corresponding to them; at least one SRS resource in the one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to a first specified value and at least one SRS resource with a number of antenna ports equal to a second specified value; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is equal to a third specified value; at least one SRS resource in the one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to 4 and at least one SRS resource with a number of antenna ports equal to 2; The number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is equal to 2; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is less than the maximum number of SRS antenna ports supported by the terminal; the first transmission power corresponding to the SRS corresponding to at least one SRS resource in the one or more SRS resource sets is greater than the maximum output power supported by the at least one SRS resource; the first transmission power corresponding to the SRS corresponding to the SRS resource whose corresponding number of antenna ports in the one or more SRS resource sets is the specified number of antenna ports is greater than the maximum output power supported by the SRS resource whose corresponding number of antenna ports is the specified number of antenna ports. A network device includes a memory, a transceiver, and a processor: The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: The transmission power of the antenna port corresponding to the target SRS is determined by determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets; the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; According to the configuration of at least one SRS resource in the one or more SRS resource sets, determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs; The determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs according to the configuration of at least one SRS resource in the one or more SRS resource sets includes: According to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets, determining the ratio between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs, wherein the other SRSs are SRSs corresponding to other SRS resources in the one or more SRS resource sets except the target SRS resource. A device for determining SRS transmission power, comprising: A first determining unit, used to determine the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets, wherein the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; A first sending unit, used to send the target SRS according to the transmission power; The determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in the one or more SRS resource sets comprises: determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets; The determining the transmission power of the antenna port corresponding to the target SRS according to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets comprises: determining the transmission power of the antenna port corresponding to the target SRS according to the first number of antenna ports; wherein the first number of antenna ports is the maximum number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets, or the first number of antenna ports is the minimum number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets; Or, wherein the determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in the one or more SRS resource sets comprises: determining whether the configuration of at least one SRS resource in the one or more SRS resource sets meets the first condition; When the configuration of at least one SRS resource in the one or more SRS resource sets meets the first condition, one or more of the following items are executed: The first transmission power corresponding to the target SRS is evenly divided according to the number of the first antenna ports, and the result of the even division is used as the transmission power of the antenna port corresponding to the target SRS; The first transmission power corresponding to the target SRS is divided by the number of the first antenna ports, and the result of the division is used as the transmission power of the antenna port corresponding to the target SRS; The first transmission power corresponding to the target SRS is evenly divided on the antenna port corresponding to the target SRS; According to the first transmission power corresponding to the target SRS and the second coefficient, the transmission power of the antenna port corresponding to the target SRS is determined; Determine the third transmission power corresponding to the target SRS according to the second coefficient, and determine the transmission power of the antenna port corresponding to the target SRS according to the third transmission power; Determine the transmission power of the antenna port corresponding to the target SRS according to the first transmission power corresponding to the target SRS and the third coefficient; Determine the first transmission power corresponding to the target SRS, and scale the first transmission power so that the ratio of the transmission power of the target SRS to the transmission power of the first SRS is a predetermined fixed value, or the ratio of the transmission power of the SRS resource corresponding to the target SRS to the transmission power of the SRS resource corresponding to the first SRS is a predetermined fixed value, or the ratio of the transmission power of the antenna port of the target SRS to the transmission power of the antenna port of the first SRS is a predetermined fixed value; Among them, the first antenna port number is the maximum or minimum value of the antenna port numbers corresponding to at least one SRS resource in the one or more SRS resource sets; the second coefficient is a default value or a coefficient determined according to the antenna port number corresponding to the target SRS and the first antenna port number; the third coefficient is a coefficient determined according to the maximum output power that can be achieved by the SRS or SRS resource whose corresponding antenna port number is the first antenna port number and the first transmission power corresponding to the SRS or SRS resource whose corresponding port number is the first antenna port number; or the third coefficient is a coefficient determined according to the maximum output power of the terminal and the first transmission power corresponding to the SRS resource whose corresponding antenna port number is the first antenna port number; The first condition includes one or more of the following conditions: at least one SRS resource in the one or more SRS resource sets is an SRS resource in the SRS resource set corresponding to the first switching mode; at least two SRS resources in the one or more SRS resource sets have different numbers of antenna ports corresponding to them; at least one SRS resource in the one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to a first specified value and at least one SRS resource with a number of antenna ports equal to a second specified value; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is equal to a third specified value; at least one SRS resource in the one or more SRS resource sets includes at least one SRS resource with a number of antenna ports equal to 4 and at least one SRS resource with a number of antenna ports equal to 2; The number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is equal to 2; the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets is less than the maximum number of SRS antenna ports supported by the terminal; the first transmission power corresponding to the SRS corresponding to at least one SRS resource in the one or more SRS resource sets is greater than the maximum output power supported by the at least one SRS resource; the first transmission power corresponding to the SRS corresponding to the SRS resource whose corresponding number of antenna ports in the one or more SRS resource sets is the specified number of antenna ports is greater than the maximum output power supported by the SRS resource whose corresponding number of antenna ports is the specified number of antenna ports. An SRS transmission power determination device comprises: A second determination unit, used to determine the transmission power of the antenna port corresponding to the target SRS in a manner of determining the transmission power of the antenna port corresponding to the target SRS according to the configuration of at least one SRS resource in one or more SRS resource sets; the target SRS is the SRS corresponding to the target SRS resource in the one or more SRS resource sets; A third determination unit, used to determine the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs according to the configuration of at least one SRS resource in the one or more SRS resource sets; The determining the relative relationship between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs according to the configuration of at least one SRS resource in the one or more SRS resource sets includes: According to the number of antenna ports corresponding to at least one SRS resource in the one or more SRS resource sets, determining the ratio between the transmission power of the antenna port corresponding to the target SRS and the transmission power of the antenna port corresponding to other SRSs, wherein the other SRSs are SRSs corresponding to other SRS resources in the one or more SRS resource sets except the target SRS resource. A computer-readable storage medium stores a computer program, wherein the computer program is used to enable a computer to execute the SRS transmission power determination method described in any one of request items 1 to 11, or to execute the SRS transmission power determination method described in request item 12 or 13.

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