IP Library › Granted Patent US 12,369,063
Granted Patent B2
US 12,369,063 · App. 18/069,211 · Granted Jul 22, 2025

Per-resource type cross link interference reference signal configuration

Inventors: Qian Zhang (Basking Ridge, NJ); Wanshi Chen (San Diego, CA); Muhammad Sayed Khairy Abdelghaffar (San Jose, CA); Yan Zhou (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W24/10H04B17/336H04L5/14
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Quick Facts
Patent No.
US 12,369,063
App. No.
18/069,211
Granted
Jul 22, 2025
Kind
B2
Abstract

Methods, systems, and devices for wireless communication are described. A wireless communication device (e.g., a user equipment (UE)) may receive information indicative of sets of resources for performing a cross link interference (CLI) measurement during one or more subband full-duplex (SBFD) symbols or one or more non-SBFD symbols. Additionally, the information may indicate additional sets of resources for reporting results of the CLI measurement. The wireless communication device may perform the CLI measurement using one of the sets of resources based on whether the CLI measurement is performed in one or more SBFD symbols or one or more non-SBFD symbols. In some examples, the wireless communication device may transmit a report indicating the results of the CLI measurement using a respective additional set of resources.

Claims (69)

1. An apparatus for wireless communication at a wireless communication device, comprising:

a processor;

memory coupled with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

receive first information indicative of a first set of resources for performing a cross link interference measurement during one or more subband full-duplex symbols;

receive second information indicative of a second set of resources for performing a cross link interference measurement during one or more non-subband full-duplex symbols; and

perform the cross link interference measurement using the first set of resources or the second set of resources based at least in part on a type of symbol in which the cross link interference measurement is to be performed, wherein the type of symbol is a subband full-duplex symbol or a non-subband full duplex symbol.

2. The apparatus of claim 1 , wherein the instructions are further executable by the processor to cause the apparatus to:

receive the first information indicative of a first additional set of resources for reporting a result of the cross link interference measurement during the one or more subband full-duplex symbols; and

receive the second information indicative of a second additional set of resources for reporting a result of the cross link interference measurement during the one or more non-subband full-duplex symbols.

3. The apparatus of claim 2 , wherein the wireless communication device is a user equipment (UE) that supports half-duplex communications, and wherein the first information and the second information are received from a network entity that supports subband full-duplex operation.

4. The apparatus of claim 2 , wherein the instructions are further executable by the processor to cause the apparatus to:

transmit a report indicating a result of the cross link interference measurement using the first additional set of resources or the second additional set of resources based at least in part on the type of symbol in which the cross link interference measurement is performed.

5. The apparatus of claim 1 , wherein the instructions to perform the cross link interference measurement are executable by the processor to cause the apparatus to:

perform at least one of a received signal strength indicator measurement or a signal interference-to-noise ratio measurement for one or more downlink subbands in a subband full-duplex symbol to measure cross link interference arising from inter-subband leakage due to an uplink transmission from a neighboring wireless communication device during the subband full-duplex symbol; and

perform at least one of a received signal strength indicator measurement or a reference signal received power measurement for one or more uplink subbands in the subband full-duplex symbol to measure intra-subband cross link interference arising from the uplink transmission, wherein the wireless communication device is a user equipment (UE).

6. The apparatus of claim 1 , wherein the instructions to perform the cross link interference measurement are executable by the processor to cause the apparatus to:

perform at least one of a received signal strength indicator measurement or a signal interference-to-noise ratio measurement for one or more uplink subbands in a subband full-duplex symbol to measure cross link interference arising from inter-subband leakage due to a downlink transmission from a neighboring wireless communication device during the subband full-duplex symbol; and

perform at least one of a received signal strength indicator measurement or a reference signal received power measurement for one or more downlink subbands in the subband full-duplex symbol to measure intra-subband cross link interference arising from the downlink transmission, wherein the wireless communication device is a network entity.

7. The apparatus of claim 1 , wherein the instructions to perform the cross link interference measurement are executable by the processor to cause the apparatus to:

perform the cross link interference measurement during a non-subband full-duplex symbol based at least in part on a misalignment of time division duplex formats applied by the wireless communication device and one or more additional wireless communication devices during the non-subband full-duplex symbol.

8. The apparatus of claim 1 , wherein an amount of the second set of resources allocated for performing the cross link interference measurement during a non-subband full-duplex symbol is based on whether time division duplex formats applied by the wireless communication device and one or more additional wireless communication devices during the non-subband full-duplex symbol are aligned or misaligned.

9. The apparatus of claim 1 , wherein a first amount of the first set of resources allocated for performing the cross link interference measurement during a subband full-duplex symbol is greater than a second amount of the second set of resources allocated for performing the cross link interference measurement during a non-subband full-duplex symbol.

10. The apparatus of claim 1 , wherein the instructions are further executable by the processor to cause the apparatus to:

distinguish the first information from the second information based at least in part on a periodicity of the first set of resources being associated with a corresponding periodicity of the one or more subband full-duplex symbols.

11. The apparatus of claim 1 , wherein the first set of resources and the second set of resources are indicated per cell of a plurality of cells.

12. The apparatus of claim 1 , wherein the wireless communication device is a user equipment (UE) and the cross link interference measurement is to determine inter-UE cross link interference.

13. An apparatus for wireless communication at a wireless communication device, comprising:

a processor;

memory coupled with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

transmit first information indicative of a first set of resources for performing a cross link interference measurement during one or more subband full-duplex symbols; and

transmit second information indicative of a second set of resources for performing a cross link interference measurement during one or more non-subband full-duplex symbols,

wherein the first information and the second information collectively configure performance of the cross link interference measurement using the first set of resources or the second set of resources based at least in part on a type of symbol in which the cross link interference measurement is to be performed, wherein the type of symbol is a subband full-duplex symbol or a non-subband full duplex symbol.

14. The apparatus of claim 13 , wherein the instructions are further executable by the processor to cause the apparatus to:

transmit the first information indicative of a first additional set of resources for reporting a result of the cross link interference measurement during the one or more subband full-duplex symbols; and

transmit the second information indicative of a second additional set of resources for reporting a result of the cross link interference measurement during the one or more non-subband full-duplex symbols.

15. The apparatus of claim 14 , wherein the wireless communication device is a network entity that supports subband full-duplex operation, and wherein the first information and the second information are transmitted to a user equipment (UE) that supports half-duplex operation.

16. The apparatus of claim 14 , wherein the instructions are further executable by the processor to cause the apparatus to:

receive a report indicating a result of the cross link interference measurement using the first additional set of resources or the second additional set of resources based at least in part on a type of symbol in which the cross link interference measurement is performed.

17. The apparatus of claim 13 , wherein an amount of the second set of resources allocated for performing the cross link interference measurement during a non-subband full-duplex symbol is based on whether time division duplex formats applied by the wireless communication device and one or more additional wireless communication devices during the non-subband full-duplex symbol are aligned or misaligned.

18. The apparatus of claim 13 , wherein a first amount of the first set of resources allocated for performing the cross link interference measurement during a subband full-duplex symbol is greater than a second amount of the second set of resources allocated for performing the cross link interference measurement during a non-subband full-duplex symbol.

19. The apparatus of claim 13 , wherein the first set of resources and the second set of resources are indicated per cell of a plurality of cells.

20. The apparatus of claim 13 , wherein the wireless communication device is a network entity and the cross link interference measurement is to determine inter-network entity cross link interference.

21. A method for wireless communication at a wireless communication device, comprising:

receiving first information indicative of a first set of resources for performing a cross link interference measurement during one or more subband full-duplex symbols;

receiving second information indicative of a second set of resources for performing a cross link interference measurement during one or more non-subband full-duplex symbols; and

performing the cross link interference measurement using the first set of resources or the second set of resources based at least in part on a type of symbol in which the cross link interference measurement is to be performed, wherein the type of symbol is a subband full-duplex symbol or a non-subband full duplex symbol.

22. The method of claim 21 , further comprising:

receiving the first information indicative of a first additional set of resources for reporting a result of the cross link interference measurement during the one or more subband full-duplex symbols; and

receiving the second information indicative of a second additional set of resources for reporting a result of the cross link interference measurement during the one or more non-subband full-duplex symbols.

23. The method of claim 22 , wherein the wireless communication device is a user equipment (UE) that supports half-duplex communications, and wherein the first information and the second information are received from a network entity that supports subband full-duplex operation.

24. The method of claim 22 , further comprising:

transmitting a report indicating a result of the cross link interference measurement using the first additional set of resources or the second additional set of resources based at least in part on the type of symbol in which the cross link interference measurement is performed.

25. The method of claim 21 , wherein performing the cross link interference measurement comprises:

performing at least one of a received signal strength indicator measurement or a signal interference-to-noise ratio measurement for one or more downlink subbands in a subband full-duplex symbol to measure cross link interference arising from inter-subband leakage due to an uplink transmission from a neighboring wireless communication device during the subband full-duplex symbol; and

performing at least one of a received signal strength indicator measurement or a reference signal received power measurement for one or more uplink subbands in the subband full-duplex symbol to measure intra-subband cross link interference arising from the uplink transmission, wherein the wireless communication device is a user equipment (UE).

26. A method for wireless communication at a wireless communication device, comprising:

transmitting first information indicative of a first set of resources for performing a cross link interference measurement during one or more subband full-duplex symbols; and

transmitting second information indicative of a second set of resources for performing a cross link interference measurement during one or more non-subband full-duplex symbols,

wherein the first information and the second information collectively configure performance of the cross link interference measurement using the first set of resources or the second set of resources based at least in part on a type of symbol in which the cross link interference measurement is to be performed, wherein the type of symbol is a subband full-duplex symbol or a non-subband full duplex symbol.

27. The method of claim 26 , further comprising:

transmitting the first information indicative of a first additional set of resources for reporting a result of the cross link interference measurement during the one or more subband full-duplex symbols; and

transmitting the second information indicative of a second additional set of resources for reporting a result of the cross link interference measurement during the one or more non-subband full-duplex symbols.

28. The method of claim 27 , further comprising:

the wireless communication device is a network entity that supports subband full-duplex operation, and wherein the first information and the second information are transmitted to a user equipment (UE) that supports half-duplex operation.

29. The method of claim 27 , further comprising:

receiving a report indicating a result of the cross link interference measurement using the first additional set of resources or the second additional set of resources based at least in part on a type of symbol in which the cross link interference measurement is performed.

30. The method of claim 26 , wherein an amount of the second set of resources allocated for performing the cross link interference measurement during a non-subband full-duplex symbol is based on whether time division duplex formats applied by the wireless communication device and one or more additional wireless communication devices during the non-subband full-duplex symbol are aligned or misaligned.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2023
From: ZHANG, QIAN; CHEN, WANSHI; ABDELGHAFFAR, MUHAMMAD SAYED KHAIRY; ZHOU, YAN
To: QUALCOMM INCORPORATED
Reel/Frame 062361/0105 →
Continuity (1)
Related Publication 20240205712A1 · Jun 20, 2024
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