IP Library Granted Patent US 10,924,959
Granted Patent B2
US 10,924,959 · App. 16/802,433 · Granted Feb 16, 2021

User equipment measurement for cross-link interference

Inventors: Xipeng Zhu (San Diego, CA); Peter Gaal (San Diego, CA); Umesh Phuyal (San Diego, CA); Huilin Xu (San Diego, CA); Masato Kitazoe (Tokyo, JP); Tom Chin (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W24/10H04B17/318H04B17/336H04W76/28
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Quick Facts
Patent No.
US 10,924,959
App. No.
16/802,433
Granted
Feb 16, 2021
Kind
B2
Abstract

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive from a base station a measurement configuration signal comprising a measurement resource configuration associated with a cross-link interference signal strength measurement. The UE may perform the cross-link interference signal strength measurement for one or more UEs associated with one or more intra-frequency neighboring cells according to the measurement resource configuration, wherein the cross-link interference signal strength measurement is performed during an intra-frequency measurement gap. The UE may transmit a report of the cross-link interference signal strength measurement to the base station.

Claims (75)

1. A method of wireless communication at a first user equipment (UE), comprising:

receiving from a base station a measurement configuration signal comprising a measurement resource configuration associated with a cross-link interference signal strength measurement;

performing the cross-link interference signal strength measurement for one or more UEs associated with one or more intra-frequency neighboring cells according to the measurement resource configuration; and

transmitting a report of the cross-link interference signal strength measurement to the base station, wherein the report of the cross-link interference signal strength measurement comprises an indication that a cross-link signal for the one or more UEs is too strong to measure or a cross-link interference signal strength measurement value associated with the cross-link signal is too strong to measure.

2. The method of claim 1 , wherein the measurement resource configuration comprises one or more of a reporting configuration for the cross-link interference signal strength measurement, a filtering configuration for the cross-link interference signal strength measurement, a measurement gap configuration for the cross-link interference signal strength measurement, or a quantity configuration for the cross-link interference signal strength measurement.

3. The method of claim 2 , wherein the cross-link interference signal strength measurement is performed during an intra-frequency measurement gap based at least in part on the measurement gap configuration.

4. The method of claim 1 , further comprising:

determining to perform the cross-link interference signal strength measurement during a discontinuous reception (DRX) off period based at least in part on a measurement accuracy threshold.

5. The method of claim 1 , further comprising:

determining, based at least in part on a slot duration and a subcarrier spacing associated with a link between the UE and the base station, a periodicity for the cross-link interference signal strength measurement, wherein transmitting the report is based at least in part on the determined periodicity.

6. The method of claim 1 , further comprising:

receiving from the base station an indication of a type of cross-link interference signal strength measurement, wherein performing the cross-link interference signal strength measurement and reporting the cross-link interference signal strength measurement are based at least in part on the indicated type of cross-link interference signal strength measurement.

7. The method of claim 6 , wherein the indication of the type of cross-link signal is received as one or more of: an explicit signal of the type of cross-link signal or an implicit indication of the type of cross-link signal.

8. The method of claim 6 , wherein the indicated type of cross-link interference signal strength measurement comprises one or more of a cross-link interference received signal strength indicator (RSSI) measurement type or a sounding reference signal received signal received power (RSRP) measurement type.

9. The method of claim 8 , wherein the measurement configuration signal comprises a first measurement configuration associated with the cross-link interference RSSI measurement type and a second measurement configuration associated with the sounding reference signal RSRP measurement type.

10. The method of claim 1 , wherein the report of the cross-link interference signal strength measurement is transmitted together with a serving cell measurement report.

11. A method for wireless communication at a base station, comprising:

coordinating with a neighboring base station to configure a measurement resource configuration associated with a cross-link interference signal strength measurement for a user equipment (UE) associated with the base station;

transmitting to the UE a measurement configuration signal comprising the measurement resource configuration; and

receiving a report of the cross-link interference signal strength measurement from the UE, the cross-link interference signal strength measurement being based at least in part on the measurement resource configuration, wherein the report of the cross-link interference signal strength measurement comprises an indication that a cross-link signal for one or more UEs in one or more the infra-frequency neighboring cells is too strong to measure or a cross-link interference signal strength measurement value associated with the cross-link signal is too strong to measure.

12. The method of claim 11 , wherein the measurement resource configuration comprises one or more of a reporting configuration for the cross-link interference signal strength measurement, a filtering configuration for the cross-link interference signal strength measurement, a measurement gap configuration for the cross-link interference signal strength measurement, or a quantity configuration for the cross-link interference signal strength measurement.

13. The method of claim 11 , wherein:

coordinating with the neighboring base station is over at least one of an Xn interface, or an F1 interface, or a combination thereof, and wherein the coordinating comprises an exchange of one or more of an interface setup message, a configuration update message, or a combination thereof.

14. The method of claim 11 , further comprising:

determining a filtering configuration for the cross-link interference signal strength measurement based at least in part on the measurement resource configuration, wherein the cross-link interference signal strength measurement is based at least in part on the determined filtering configuration.

15. The method of claim 11 , further comprising:

determining, based at least in part on a slot duration and a subcarrier spacing associated with a link between the UE and the base station, a periodicity for the cross-link interference signal strength measurement, wherein receiving the report is based at least in part on the determined periodicity.

16. The method of claim 11 , further comprising:

transmitting to the UE an indication of a type of cross-link interference signal strength measurement, wherein the cross-link interference signal strength measurement and report of the cross-link interference signal strength measurement are based at least in part on the indicated type of cross-link interference signal strength measurement.

17. The method of claim 16 , wherein the indicated type of cross-link interference signal strength measurement comprises one or more of: a cross-link interference received signal strength indicator (RSSI) measurement type or a sounding reference signal received signal received power (RSRP) measurement type.

18. The method of claim 17 , wherein the measurement configuration signal comprises a first measurement configuration associated with the cross-link interference RSSI measurement type and a second measurement configuration associated with the sounding reference signal RSRP measurement type.

19. The method of claim 11 , wherein the report of the cross-link interference signal strength measurement is received together with a serving cell measurement report.

20. An apparatus for wireless communication at a first user equipment (UE), comprising:

a processor,

memory in electronic communication with the processor; and

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

receive from a base station a measurement configuration signal comprising a measurement resource configuration associated with a cross-link interference signal strength measurement;

perform the cross-link interference signal strength measurement for one or more UEs associated with one or more intra-frequency neighboring cells according to the measurement resource configuration; and

transmit a report of the cross-link interference signal strength measurement to the base station, wherein the report of the cross-link interference signal strength measurement comprises an indication that a cross-link signal for the one or more UEs is too strong to measure or a cross-link interference signal strength measurement value associated with the cross-link signal is too strong to measure.

21. The apparatus of claim 20 , wherein the measurement resource configuration comprises one or more of a reporting configuration for the cross-link interference signal strength measurement, a filtering configuration for the cross-link interference signal strength measurement, a measurement gap configuration for the cross-link interference signal strength measurement, or a quantity configuration for the cross-link interference signal strength measurement.

22. The apparatus of claim 20 , wherein the instructions are further executable by the processor to cause the apparatus to:

determine to perform the cross-link interference signal strength measurement during a discontinuous reception (DRX) off period based at least in part on a measurement accuracy threshold.

23. The apparatus of claim 20 , wherein the instructions are further executable by the processor to cause the apparatus to:

determine, based at least in part on a slot duration and a subcarrier spacing associated with a link between the UE and the base station, a periodicity for the cross-link interference signal strength measurement, wherein transmitting the report is based at least in part on the determined periodicity.

24. An apparatus for wireless communication at a base station, comprising:

a processor,

memory in electronic communication with the processor; and

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

coordinate with a neighboring base station to configure a measurement resource configuration associated with a cross-link interference signal strength measurement for a user equipment (UE) associated with the base station;

transmit to the UE a measurement configuration signal comprising the measurement resource configuration; and

receive a report of the cross-link interference signal strength measurement from the UE, the cross-link interference signal strength measurement being based at least in part on the measurement resource configuration, wherein the report of the cross-link interference signal strength measurement comprises an indication that a cross-link signal for one or more UEs in one or more the intra-frequency neighboring cells is too strong to measure or a cross-link interference signal strength measurement value associated with the cross-link signal is too strong to measure.

25. A method of wireless communication at a first user equipment (UE), comprising:

receiving from a base station a measurement configuration signal comprising a measurement resource configuration associated with a cross-link interference signal strength measurement;

performing the cross-link interference signal strength measurement for one or more UEs associated with one or more intra-frequency neighboring cells according to the measurement resource configuration;

detecting that a triggering condition for an event is fulfilled based at least in part on a comparison of the cross-link interference signal strength measurement to a threshold, wherein the triggering condition comprises one or more of a first triggering condition associated with the cross-link interference signal strength measurement falling below a low threshold or a second triggering condition associated with the cross-link interference signal strength measurement exceeding a high threshold; and

transmitting a report of the cross-link interference signal strength measurement to the base station, wherein the report is based at least in part on the event.

26. An apparatus for wireless communication at a first user equipment (UE), comprising:

a processor,

memory in electronic communication with the processor; and

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

receive from a base station a measurement configuration signal comprising a measurement resource configuration associated with a cross-link interference signal strength measurement;

perform the cross-link interference signal strength measurement for one or more UEs associated with one or more intra-frequency neighboring cells according to the measurement resource configuration;

detect that a triggering condition for an event is fulfilled based at least in part on a comparison of the cross-link interference signal strength measurement to a threshold, wherein the triggering condition comprises one or more of a first triggering condition associated with the cross-link interference signal strength measurement falling below a low threshold or a second triggering condition associated with the cross-link interference signal strength measurement exceeding a high threshold; and

transmit a report of the cross-link interference signal strength measurement to the base station, wherein the report is based at least in part on the event.

27. A method for wireless communication at a base station, comprising:

coordinating with a neighboring base station to configure a measurement resource configuration associated with a cross-link interference signal strength measurement for a user equipment (UE) associated with the base station;

transmitting to the UE a measurement configuration signal comprising the measurement resource configuration; and

receiving a report of the cross-link interference signal strength measurement from the UE, the cross-link interference signal strength measurement being based at least in part on the measurement resource configuration, the report being received based at least in part on fulfillment of a triggering condition for an event based on a comparison of the cross-link interference signal strength measurement to a threshold, the triggering event comprising one or more of a first triggering condition associated with the cross-link interference signal strength measurement falling below a low threshold or a second triggering condition associated with the cross-link interference signal strength measurement exceeding a high threshold.

28. An apparatus for wireless communication at a base station, comprising:

a processor,

memory in electronic communication with the processor; and

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

coordinate with a neighboring base station to configure a measurement resource configuration associated with a cross-link interference signal strength measurement for a user equipment (UE) associated with the base station;

transmit to the UE a measurement configuration signal comprising the measurement resource configuration; and

receive a report of the cross-link interference signal strength measurement from the UE, the cross-link interference signal strength measurement being based at least in part on the measurement resource configuration, the report being received based at least in part on fulfillment of a triggering condition for an event based on a comparison of the cross-link interference signal strength measurement to a threshold, the triggering event comprising one or more of a first triggering condition associated with the cross-link interference signal strength measurement falling below a low threshold or a second triggering condition associated with the cross-link interference signal strength measurement exceeding a high threshold.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 18, 2020
From: ZHU, XIPENG; GAAL, PETER; PHUYAL, UMESH; XU, HUILIN; KITAZOE, MASATO; CHIN, TOM
To: QUALCOMM INCORPORATED
Reel/Frame 052435/0176 →
Continuity (2)
Provisional Application 62842426 · May 2, 2019
Related Publication 20200351690A1 · Nov 5, 2020
Cited By (1)
US 12,513,544