US-12621104-B2 - Sounding reference signal configuration method, terminal and network-side device

Abstract

A sounding reference signal configuration method includes indicating, by a network-side device to a terminal, a configuration parameter of a target SRS; where in a case that an SRS resource indicated by the configuration parameter includes N OFDM symbols and the configuration parameter indicates that frequency hopping of the target SRS is disabled, the configuration parameter indicates the terminal to use at least one spatial beam to transmit the target SRS on the N OFDM symbols, where N is an integer greater than 1.

Inventors

• Rakesh Tamrakar
• Peng Sun
• Yuan Shi

Assignees

• VIVO MOBILE COMMUNICATION CO., LTD.

Dates

Publication Date

20260505

Application Date

20230328

Priority Date

20200929

Claims (20)

1. 1 . A sounding reference signal configuration method, comprising: indicating, by a network-side device to a terminal, a configuration parameter of a target sounding reference signal (SRS); wherein in a case that an SRS resource indicated by the configuration parameter comprises N orthogonal frequency division multiplex (OFDM) symbols and the configuration parameter indicates that frequency hopping of the target SRS is disabled, the configuration parameter indicates the terminal to use at least one spatial beam to transmit the target SRS on the N OFDM symbols, wherein N is an integer greater than 1; wherein in a case that a repetition parameter in the configuration parameter is R, the configuration parameter indicates the terminal to use a same spatial beam on each R OFDM symbols of the N OFDM symbols to transmit the target SRS, wherein spatial beams used among respective R OFDM symbols of the N OFDM symbols are different, and R is an integer greater than 0 and less than or equal to N; or, in a case that the repetition parameter in the configuration parameter is configured to be on, the configuration parameter indicates the terminal to use a same spatial beam on the N OFDM symbols to transmit the target SRS; or in a case that the repetition parameter in the configuration parameter is configured to be off, the configuration parameter indicates the terminal to use a different spatial beam on each OFDM symbol of the N OFDM symbols to transmit the target SRS.
2. 2 . The method according to claim 1 , wherein the target SRS comprises one of: periodic SRS, semi-persistent SRS, or aperiodic SRS.
3. 3 . The method according to claim 1 , wherein a value of the repetition parameter being off, indicates that R equals to n, wherein n is a predetermined value, and n is an integer greater than 0 and less than or equal to N; or the configuration parameter not comprising the repetition parameter indicates that R equals to n; or the repetition parameter is configured to a value n as prescribed in advance.
4. 4 . The method according to claim 1 , wherein the method further comprises: in a case that the target SRS is aperiodic SRS or semi-persistent SRS, transmitting a trigger command for the target SRS to the terminal, wherein the trigger command carries the repetition parameter.
5. 5 . The method according to claim 4 , wherein the trigger command is used to trigger P transmissions of the target SRS, and for each transmission of the P transmissions of the target SRS, a spatial beam used for transmitting the target SRS on the N OFDM symbols is determined according to the repetition parameter, wherein P is an integer greater than 0.
6. 6 . The method according to claim 1 , wherein the configuration parameter further comprises a start position of the N OFDM symbols in a slot.
7. 7 . The method according to claim 6 , wherein a sum of M and N is less than or equal to 14, and the start position is the M-th OFDM symbol in the slot.
8. 8 . The method according to claim 1 , wherein a number of spatial beams associated with the SRS resource is m which equals to └N/R┘.
9. 9 . The method according to claim 1 , wherein the method further comprises: indicating, by the network-side device by using signaling, uplink spatial beam information selected for the SRS resource.
10. 10 . The method according to claim 9 , wherein the signaling comprises downlink control information (DCI) signaling, and an SRS resource indication field in the DCI signaling indicates the uplink spatial beam information selected for the SRS resource.
11. 11 . The method according to claim 10 , wherein the uplink spatial beam information comprises one of: spatial relation information, transmission configuration indication information (TCI), or identifier information of the spatial beam.
12. 12 . A network-side device, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, cause the network-side device to perform: indicating a configuration parameter of a target sounding reference signal (SRS) to a terminal; wherein in a case that an SRS resource indicated by the configuration parameter comprises N orthogonal frequency division multiplex (OFDM) symbols and the configuration parameter indicates that frequency hopping of the target SRS is disabled, the configuration parameter indicates the terminal to use at least one spatial beam to transmit the target SRS on the N OFDM symbols, wherein N is an integer greater than 1; wherein in a case that a repetition parameter in the configuration parameter is R, the configuration parameter indicates the terminal to use a same spatial beam on each R OFDM symbols of the N OFDM symbols to transmit the target SRS, wherein spatial beams used among respective R OFDM symbols of the N OFDM symbols are different, and R is an integer greater than 0 and less than or equal to N; or, in a case that a repetition parameter in the configuration parameter is configured to be on, the configuration parameter indicates the terminal to use a same spatial beam on the N OFDM symbols to transmit the target SRS; or in a case that a repetition parameter in the configuration parameter is configured to be off, the configuration parameter indicates the terminal to use a different spatial beam on each OFDM symbol of the N OFDM symbols to transmit the target SRS.
13. 13 . The network-side device according to claim 12 , wherein the target SRS comprises one of: periodic SRS, semi-persistent SRS, or aperiodic SRS.
14. 14 . The network-side device according to claim 12 , wherein a value of the repetition parameter being off, indicates that R equals to n, wherein n is a predetermined value, and n is an integer greater than 0 and less than or equal to N; or the configuration parameter not comprising the repetition parameter indicates that R equals to n; or the repetition parameter is configured to a value n as prescribed in advance.
15. 15 . The network-side device according to claim 12 , wherein the program or instructions, when executed by the processor, cause the network-side device to further perform: in a case that the target SRS is aperiodic SRS or semi-persistent SRS, transmitting a trigger command for the target SRS to the terminal, wherein the trigger command carries the repetition parameter.
16. 16 . A terminal, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, cause the terminal to perform: receiving a configuration parameter of a target sounding reference signal (SRS); wherein in a case that an SRS resource indicated by the configuration parameter comprises N orthogonal frequency division multiplex (OFDM) symbols and the configuration parameter indicates that frequency hopping of the target SRS is disabled, transmitting the target SRS by using at least one spatial beam on the N OFDM symbols, wherein N is an integer greater than 1; wherein the program or instructions, when executed by the processor, cause the terminal to perform: in a case that a repetition parameter in the configuration parameter is R, transmitting the target SRS by using a same spatial beam on each R OFDM symbols of the N OFDM symbols, wherein spatial beams used among respective R OFDM symbols of the N OFDM symbols are different, and R is an integer greater than 0 and less than or equal to N; or, wherein the program or instructions, when executed by the processor, cause the terminal to perform: in a case that the repetition parameter in the configuration parameter is configured to be on, transmitting the target SRS by using a same spatial beam on the N OFDM symbols; or in a case that the repetition parameter in the configuration parameter is configured to be off, transmitting the target SRS by using a different spatial beam on each OFDM symbol of the N OFDM symbols.
17. 17 . The terminal according to claim 16 , wherein the target SRS comprises one of: periodic SRS, semi-persistent SRS, or aperiodic SRS.
18. 18 . The terminal according to claim 16 , wherein the program or instructions, when executed by the processor, cause the terminal to further perform: in a case that the target SRS is aperiodic SRS or semi-persistent SRS, receiving a trigger command for the target SRS, wherein the trigger command carries the repetition parameter.
19. 19 . The terminal according to claim 16 , wherein the configuration parameter further comprises a start position of the N OFDM symbols in a slot.
20. 20 . The terminal according to claim 16 , wherein a number of spatial beams associated with the SRS resource is m which equals to └N/R┘.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a Bypass Continuation Application of PCT/CN2021/120822 filed on Sep. 27, 2021, and claims priority to Chinese Patent Application No. 202011051186.5 filed on Sep. 29, 2020, the disclosures of which are hereby incorporated by reference in their entireties. BACKGROUND OF THE INVENTION Field of the Invention This application pertains to the field of communications technologies, and specifically, relates to a sounding reference signal (SRS) configuration method, a terminal, and a network-side device. Description of Related Art In general, a network-side device can indicate SRS configuration parameters to a terminal (also referred to as a terminal device or user equipment (UE)) to control a specific behavior of the terminal in transmitting SRS. For semi-persistent SRS or aperiodic SRS, the network-side device can further trigger, by using trigger signaling, the UE to transmit SRS. Semi-persistent SRS related parameters can be configured by higher layer signaling (for example, radio resource control (RRC) signaling), and the terminal can start to transmit semi-persistent SRS according to the SRS related parameters configured by RRC until the terminal receives a deactivation command from a base station. Aperiodic SRS related parameters are configured by RRC, and trigger, in downlink control information (DCI), the terminal to perform a single SRS transmission. RRC configuration parameters include a time domain parameter such as an SRS resource symbol position, the number of orthogonal frequency division multiplex (OFDM) symbols occupied, frequency hopping, and a repetition parameter R. SUMMARY OF THE INVENTION According to a first aspect, a sounding reference signal configuration method is provided, including: indicating, by a network-side device to a terminal, a configuration parameter of a target sounding reference signal SRS; where in a case that an SRS resource indicated by the configuration parameter includes N orthogonal frequency division multiplex OFDM symbols and the configuration parameter indicates that frequency hopping of the target SRS is disabled, the configuration parameter indicates the terminal to use at least one spatial beam to transmit the target SRS on the N OFDM symbols, where N is an integer greater than 1. According to a second aspect, an SRS configuration apparatus is provided, including: a determining module, configured to determine a configuration parameter of a target SRS of a terminal; and a first transmit module, configured to indicate the configuration parameter of the target SRS to the terminal; where in a case that an SRS resource indicated by the configuration parameter includes N OFDM symbols and the configuration parameter indicates that frequency hopping of the target SRS is disabled, the configuration parameter indicates the terminal to use at least one spatial beam to transmit the target SRS on the N OFDM symbols, where N is an integer greater than 1. According to a third aspect, an SRS transmit method is provided, including: receiving, by a terminal, a configuration parameter of a target SRS; and in a case that an SRS resource indicated by the configuration parameter includes N OFDM symbols, and that the configuration parameter indicates that frequency hopping of the target SRS is disabled, transmitting, by the terminal, the target SRS by using at least one spatial beam on the N OFDM symbols, where N is an integer greater than 1. According to a fourth aspect, an SRS transmit apparatus is provided, including: a receive module, configured to receive a configuration parameter of a target SRS; and a second transmit module, configured to: in a case that an SRS resource indicated by the configuration parameter includes N OFDM symbols, and that the configuration parameter indicates that frequency hopping of the target SRS is disabled, transmit the target SRS by using at least one spatial beam on the N OFDM symbols, where N is an integer greater than 1. According to a fifth aspect, a network-side device is provided, where the network-side device includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and when the program or instructions are executed by the processor, steps of the method according to the first aspect are implemented. According to a sixth aspect, a terminal is provided, where the terminal includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and when the program or instructions are executed by the processor, steps of the method according to the third aspect are implemented. According to a seventh aspect, a non-transitory readable storage medium is provided, where the non-transitory readable storage medium stores a program or instructions, and when the program or instructions are executed by a processor, steps of the method according to the first aspect are implemented, or the steps of the m