IP Library › Granted Patent US 12,425,153

Granted Patent B2

US 12,425,153 · App. 17/758,523 · Granted Sep 23, 2025

Enhanced sounding reference signal resource configurations

Inventors: Runxin Wang (San Diego, CA); Muhammad Sayed Khairy Abdelghaffar (San Jose, CA); Yu Zhang (Beijing, CN); Alexandros Manolakos (Escondido, CA); Weimin Duan (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04L5/0048

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Quick Facts

Patent No.: US 12,425,153
App. No.: 17/758,523
Granted: Sep 23, 2025
Kind: B2

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Abstract

Methods, systems, and devices for wireless communications are described. In some examples, a UE may receive an indication of a set of sounding reference signal (SRS) parameters corresponding to a set of SRS resources for transmitting SRSs, where the set of SRS resources may refer to frequency, or time, or both. In some examples, the SRS parameters may include, among other examples, a frequency allocation, a frequency overlap parameter, a number of allocated symbols, a comb value, a cyclic shift, a comb offset, a frequency hopping parameter, a repetition parameter, a symbol grouping parameter, or any combination thereof. The UE may determine an SRS configuration for the one or more SRSs based on the set of SRS parameters and transmit the one or more SRSs based on the configuration. In some examples, the SRS configuration includes a configuration for SRS frequency hopping, or SRS repetition, or both.

Claims (115)

1. A method of wireless communication performed by an apparatus, the method comprising:

receiving an indication of a set of sounding reference signal parameters corresponding to a set of sounding reference signal resources for transmission of one or more sounding reference signals;

determining a sounding reference signal configuration for the one or more sounding reference signals based at least in part on the set of sounding reference signal parameters, wherein the sounding reference signal configuration comprises a configuration for a number of symbols for which the one or more sounding reference signals are configured, a non-uniform grouping for at least one of the one or more sounding reference signals, different sounding reference signal parameters for at least one sounding reference signal resource, a partial frequency overlapping for symbols of a sounding reference signal resource, different sounding reference signal configurations for different subsets of a slot, or a dynamic configuration for at least some of the sounding reference signal parameters, or any combination thereof; and

transmitting the one or more sounding reference signals based at least in part on the sounding reference signal configuration, wherein the number of symbols is ten symbols or fourteen symbols.

2. The method of claim 1 , wherein receiving the indication of the set of sounding reference signal parameters comprises:

receiving an indication of the number of symbols for which the one or more sounding reference signals are configured, the number of symbols being the ten symbols.

3. The method of claim 1 , wherein receiving the indication of the set of sounding reference signal parameters comprises:

receiving an indication of the number of symbols for which the one or more sounding reference signals are configured, the number of symbols being the fourteen symbols.

4. The method of claim 1 , wherein determining the sounding reference signal configuration comprises:

determining that each of one or more antenna ports for the sounding reference signal resource is mapped to a single set of subcarriers across one or more pairs of the symbols of the sounding reference signal resource.

5. The method of claim 4 , further comprising:

determining that the sounding reference signal configuration is unsupported based at least in part on determining that each of the one or more antenna ports of for the sounding reference signal resource is mapped to the single set of subcarriers across the one or more pairs of the symbols of the sounding reference signal resource, wherein transmitting the one or more sounding reference signals is based at least in part on determining that the sounding reference signal configuration is unsupported.

6. The method of claim 4 , wherein determining the sounding reference signal configuration comprises:

determining the non-uniform grouping for the one or more sounding reference signals based at least in part on determining that each of the one or more antenna ports of for the sounding reference signal resource is mapped to the single set of subcarriers across the one or more pairs of the symbols of the sounding reference signal resource, wherein transmitting the one or more sounding reference signals is based at least in part on determining the non-uniform grouping for the one or more sounding reference signals.

7. The method of claim 1 , wherein receiving the indication of the set of sounding reference signal parameters comprises:

receiving an indication of the non-uniform grouping for the one or more sounding reference signals for a sounding reference signal resource of the set of sounding reference signal resources or of a second set of sounding reference signal resources, and wherein determining the sounding reference signal configuration comprises; and

determining the non-uniform grouping for the one or more sounding reference signals based at least in part on receiving the indication of the non-uniform grouping.

8. The method of claim 7 , wherein determining the non-uniform grouping comprises:

determining that the one or more sounding reference signals are each mapped to a different set of subcarriers across different symbols of the sounding reference signal resource.

9. The method of claim 8 , wherein determining the non-uniform grouping comprises:

determining that one of the one or more sounding reference signals is to be repeated on a same set of subcarriers across contiguous symbols of the sounding reference signal resource; and

determining that one of the one or more sounding reference signals is not to be repeated on a same set of subcarriers across contiguous symbols of the sounding reference signal resource.

10. The method of claim 8 , wherein determining the non-uniform grouping comprises:

determining that one of the one or more sounding reference signals is to be transmitted on a first group of subcarriers on at least a first symbol of the sounding reference signal resource; and

determining that one of the one or more sounding reference signals is to be transmitted on a second group of subcarriers on at least a second symbol of the sounding reference signal resource.

11. The method of claim 1 , wherein determining the sounding reference signal configuration comprises:

setting a number of frequency hops for at least one of the one or more sounding reference signals, or setting a number of symbols of each frequency hop for at least one of the one or more sounding reference signals, or both.

12. The method of claim 1 , wherein receiving the indication of the set of sounding reference signal parameters comprises:

receiving an indication of a comb value for one or more symbols of a sounding reference signal resource of the set of sounding reference signal resources, and wherein determining the sounding reference signal configuration comprises; and

setting a first comb value for a first symbol of the one or more symbols of the sounding reference signal resource and setting a second comb value for a second symbol of the one or more symbols of the sounding reference signal resource.

13. The method of claim 1 , wherein receiving the indication of the set of sounding reference signal parameters comprises:

receiving an indication of a cyclic shift value or a cyclic shift offset for one or more symbols of a sounding reference signal resource of the set of sounding reference signal resources, and wherein determining the sounding reference signal configuration comprises; and

setting a first cyclic shift value or a first cyclic shift offset for a first symbol of the one or more symbols of the sounding reference signal resource and setting a second cyclic shift value or a second cyclic shift offset for a second symbol of the one or more symbols of the sounding reference signal resource.

14. The method of claim 1 , wherein receiving the indication of the set of sounding reference signal parameters comprises:

receiving an indication of a comb offset value for one or more symbols of a sounding reference signal resource of the set of sounding reference signal resources, and wherein determining the sounding reference signal configuration comprises; and

setting a first comb offset value for a first symbol of the one or more symbols of the sounding reference signal resource and setting a second comb offset value for a second symbol of the one or more symbols of the sounding reference signal resource.

15. The method of claim 1 , wherein receiving the indication of the set of sounding reference signal parameters comprises:

receiving an indication that partial frequency overlapping for symbols of a sounding reference signal resource of the set of sounding reference signal resources is configured, and wherein determining the sounding reference signal configuration comprises; and

setting a first set of subcarriers for a first symbol of the set of sounding reference signal resources and a second set of subcarriers for a second symbol of the set of sounding reference signal resources, the first set of subcarriers at least partially overlapping with the second set of subcarriers.

16. The method of claim 15 , wherein determining the sounding reference signal configuration comprises:

setting a third set of subcarriers for a third symbol of the set of sounding reference signal resources, the third set of subcarriers at least partially overlapping with the second set of subcarriers a same amount as the first set of subcarriers at least partially overlap with the second set of subcarriers.

17. The method of claim 15 , wherein determining the sounding reference signal configuration comprises:

setting a third set of subcarriers for a third symbol of the set of sounding reference signal resources, the third set of subcarriers at least partially overlapping with the second set of subcarriers a different amount as the first set of subcarriers at least partially overlap with the second set of subcarriers.

18. The method of claim 15 , wherein determining the sounding reference signal configuration comprises:

setting a third set of subcarriers for a third symbol of the set of sounding reference signal resources and a fourth set of subcarriers for a fourth symbol of the set of sounding reference signal resources, the fourth set of subcarriers at least partially overlapping with the third set of subcarriers a same amount as the first set of subcarriers at least partially overlap with the second set of subcarriers.

19. The method of claim 15 , wherein determining the sounding reference signal configuration comprises:

setting a third set of subcarriers for a third symbol of the set of sounding reference signal resources and a fourth set of subcarriers for a fourth symbol of the set of sounding reference signal resources, the fourth set of subcarriers at least partially overlapping with the third set of subcarriers a different amount as the first set of subcarriers at least partially overlap with the second set of subcarriers.

20. The method of claim 15 , wherein determining the sounding reference signal configuration comprises:

21. The method of claim 1 , wherein determining the sounding reference signal configuration comprises:

determining a first sounding reference signal configuration for a first subset of a slot and determining a second sounding reference signal configuration for a subset of the slot, and wherein the sounding reference signals comprise one or more of a periodic sounding reference signal or a semi-persistent sounding reference signal.

22. The method of claim 21 , wherein determining the first sounding reference signal configuration and the second sounding reference signal configuration comprises:

determining one or more sounding reference signal parameters of the set of sounding reference signal parameters for the first sounding reference signal configuration that are different than one or more sounding reference signal parameters of the set of sounding reference signal parameters for the second sounding reference signal configuration based at least in part on a frame index, a slot index, a periodic timing, a defined order, or any combination thereof.

23. The method of claim 21 , wherein the sounding reference signal configuration comprises a configuration for the periodic sounding reference signal or the semi-persistent sounding reference signal.

24. The method of claim 1 , wherein the set of sounding reference signal parameters comprises a frequency allocation, a comb value, a cyclic shift, a cyclic shift offset, a comb offset, a frequency hopping parameter, a repetition parameter, a symbol grouping parameter, or any combination thereof.

25. The method of claim 1 , wherein receiving the indication of the set of sounding reference signal parameters comprises:

receiving an indication of a symbol grouping parameter indicating one or more of a number of frequency hops or a number of symbols per frequency hop for the sounding reference signal configuration.

26. The method of claim 1 , wherein receiving the indication of the set of sounding reference signal parameters further comprises:

receiving radio resource control signaling comprising the indication of the set of sounding reference signal parameters.

27. The method of claim 1 , wherein receiving the indication of the set of sounding reference signal parameters further comprises:

receiving downlink control information or a medium access control control element comprising the indication of the set of sounding reference signal parameters.

28. The method of claim 27 , wherein determining the sounding reference signal configuration comprises:

selecting a defined configuration based at least in part on receiving the downlink control information or the medium access control control element; or

setting one or more sounding reference signal parameters of the set of sounding reference signal parameters for the sounding reference signal configuration based at least in part on receiving the downlink control information or the medium access control control element.

29. The method of claim 1 , further comprising:

receiving downlink control information or a medium access control control element comprising an indication of a second set of sounding reference signal parameters;

updating the sounding reference signal configuration for the one or more sounding reference signals based at least in part on the second set of sounding reference signal parameters; and

transmitting the one or more sounding reference signals based at least in part on the updated sounding reference signal configuration.

30. An apparatus for wireless communication, the apparatus comprising:

a processor; and

memory coupled with the processor, wherein the processor is configured to cause the apparatus to:

receive an indication of a set of sounding reference signal parameters corresponding to a set of sounding reference signal resources for transmission of one or more sounding reference signals;

determine a sounding reference signal configuration for the one or more sounding reference signals based at least in part on the set of sounding reference signal parameters, wherein the sounding reference signal configuration comprises a configuration for a number of symbols for which the one or more sounding reference signals are configured, a non-uniform grouping for at least one of the one or more sounding reference signals, different sounding reference signal parameters for at least one sounding reference signal resource, a partial frequency overlapping for symbols of a sounding reference signal resource, different sounding reference signal configurations for different subsets of a slot, or a dynamic configuration for at least some of the sounding reference signal parameters, or any combination thereof; and

transmit the one or more sounding reference signals based at least in part on the sounding reference signal configuration, wherein the number of symbols is ten symbols or fourteen symbols.

31. The apparatus of claim 30 , wherein, to receive the indication of the set of sounding reference signal parameters, the processor is configured to cause the apparatus to:

receive an indication of the number of symbols for which the one or more sounding reference signals are configured, the number of symbols being the ten symbols.

32. The apparatus of claim 30 , wherein, to receive the indication of the set of sounding reference signal parameters, the processor is configured to cause the apparatus to:

receive an indication of the number of symbols for which the one or more sounding reference signals are configured, the number of symbols being the fourteen symbols.

33. An apparatus comprising:

a processor; and

memory coupled with the processor, wherein the processor is configured to cause the apparatus to:

receive an indication of a set of sounding reference signal parameters corresponding to a set of sounding reference signal resources for transmission of one or more sounding reference signals, wherein the set of sounding reference signal parameters comprises a number of symbols for the one or more sounding reference signals, and wherein the number of symbols is ten symbols or fourteen symbols; and

transmit the one or more sounding reference signals based at least in part on the set of sounding reference signal parameters.

34. The apparatus of claim 33 , wherein the number of symbols is the ten symbols.

35. The apparatus of claim 33 , wherein the number of symbols is the fourteen symbols.

36. A method of wireless communication performed by an apparatus, the method comprising:

receiving an indication of a set of sounding reference signal parameters corresponding to a set of sounding reference signal resources for transmission of one or more sounding reference signals, wherein the set of sounding reference signal parameters comprises a number of symbols for the one or more sounding reference signals, and wherein the number of symbols is ten symbols or fourteen symbols; and

transmitting the one or more sounding reference signals based at least in part on the set of sounding reference signal parameters.

37. The method of claim 36 , wherein the number of symbols is the ten symbols.

38. The apparatus of claim 36 , wherein the number of symbols is the fourteen symbols.

39. A base station comprising:

a processor; and

memory coupled with the processor, wherein the processor is configured to cause the base station to:

transmit an indication of a set of sounding reference signal parameters corresponding to a set of sounding reference signal resources for transmission of one or more sounding reference signals, wherein the set of sounding reference signal parameters comprises a number of symbols for the one or more sounding reference signals, and wherein the number of symbols is ten symbols or fourteen symbols; and

receive the one or more sounding reference signals based at least in part on the set of sounding reference signal parameters.

40. The base station of claim 39 , wherein the number of symbols is the ten symbols.

41. The base station of claim 39 , wherein the number of symbols is the fourteen symbols.

42. An apparatus comprising:

a processor; and

memory coupled with the processor, wherein the processor is configured to cause the apparatus to:

receive an indication of a set of sounding reference signal parameters corresponding to a set of sounding reference signal resources for transmission of one or more sounding reference signals, wherein the set of sounding reference signal parameters comprises a number of symbols for the one or more sounding reference signals, wherein the number of symbols is ten symbols or fourteen symbols, and wherein the number of symbols is an integer multiple of a configured number of repetitions for the one or more sounding reference signals; and

transmit the one or more sounding reference signals based at least in part on the set of sounding reference signal parameters.

43. The apparatus of claim 42 , wherein the number of symbols is the ten symbols.

44. The apparatus of claim 43 , wherein the configured number of repetitions is one, two, or ten.

45. The apparatus of claim 42 , wherein the number of symbols is the fourteen symbols.

46. The apparatus of claim 45 , wherein the configured number of repetitions is one, two, or fourteen.

47. An apparatus comprising:

a processor; and

memory coupled with the processor, wherein the processor is configured to cause the apparatus to:

receive a set of sounding reference signal parameters for transmission of a sounding reference signal resource, wherein the set of sounding reference signal parameters comprises a number of symbols for the sounding reference signal resource and a number of repetitions for the sounding reference signal resource, wherein the number of symbols is ten symbols or fourteen symbols, and wherein the number of symbols is an integer multiple of the number of repetitions; and

transmit the sounding reference signal resource based at least in part on the set of sounding reference signal parameters.

48. The apparatus of claim 47 , wherein the number of symbols is the ten symbols.

49. The apparatus of claim 48 , wherein the number of repetitions is one, two, or ten.

50. The apparatus of claim 47 , wherein the number of symbols is the fourteen symbols.

51. The apparatus of claim 50 , wherein the number of repetitions is one, two, or fourteen.

Assignments (2)

CORRECTIVE ASSIGNMENT TO CORRECT THE SIGNATURE EXECUTION DATE OF THE 5TH INVENTOR PREVIOUSLY RECORDED AT REEL: 060879 FRAME: 0588. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Dec 8, 2022

From: WANG, RUNXIN; ABDELGHAFFAR, MUHAMMAD SAYED KHAIRY; ZHANG, YU; MANOLAKOS, ALEXANDROS; DUAN, WEIMIN

To: QUALCOMM INCORPORATED

Reel/Frame 062094/0638 →

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 25, 2022

From: WANG, RUNXIN; ABDELGHAFFAR, MUHAMMAD SAYED KHAIRY; ZHANG, YU; MANOLAKOS, ALEXANDROS; DUAN, WEIMIN

To: QUALCOMM INCORPORATED

Reel/Frame 060879/0588 →

Continuity (1)

Related Publication 20230030823A1 · Feb 2, 2023

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