IP Library › Granted Patent US 12,382,321
Granted Patent B2
US 12,382,321 · App. 17/651,171 · Granted Aug 5, 2025

Radio resource management measurement relaxation for stationary user equipments

Inventor: Linhai He (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W24/08H04W76/27
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Quick Facts
Patent No.
US 12,382,321
App. No.
17/651,171
Granted
Aug 5, 2025
Kind
B2
Abstract

A user equipment (UE) may receive, from a network entity, a configuration associated with radio resource management (RRM) measurement relaxation based at least in part on the UE being stationary. The UE may perform RRM measurements based at least in part on the configuration associated with RRM measurement relaxation.

Claims (65)

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

one or more memories; and

one or more processors, coupled to the one or more memories, configured to:

receive, from a network entity, a first configuration associated with radio resource management (RRM) measurement relaxation based at least in part on the UE being stationary,

wherein the UE is stationary based at least in part on a difference between a threshold value and a serving cell received signal level (Srxlev) being less than a delta value for a period of time;

receive, from the network entity, a second configuration, that is applicable only when the first configuration is enabled, associated with RRM measurement relaxation and associated with the UE not being located at a cell edge,

wherein the UE is not located at the cell edge based at least in part on a signal strength of the UE satisfying another threshold value; and

perform RRM measurements based at least in part on the first configuration and the second configuration.

2. The apparatus of claim 1 , wherein the UE is associated with a fixed location, as indicated in a subscription associated with the UE.

3. The apparatus of claim 1 , wherein the threshold value is specific to stationary UEs.

4. The apparatus of claim 1 , wherein the first configuration is applied when the UE is in a radio resource control idle mode.

5. The apparatus of claim 1 , wherein the one or more processors are further configured to:

receive, from the network entity, an indication that the UE should disable the first configuration.

6. The apparatus of claim 1 , wherein the second configuration is applicable to stationary UEs.

7. The apparatus of claim 1 , wherein the one or more processors, to perform the RRM measurements, are configured to perform the RRM measurements based at least in part on a scaling factor associated with an interval of the RRM measurements, wherein the scaling factor is based at least in part on the UE being stationary and the UE being located at the cell edge.

8. The apparatus of claim 7 , wherein the scaling factor associated with the RRM measurements is different for the UE that is stationary as compared to a scaling factor associated with the RRM measurements for a UE having low mobility.

9. The apparatus of claim 1 , wherein the one or more processors, to perform the RRM measurements, are configured to stop the RRM measurements for a period of time based at least in part on the UE being stationary and the UE being not located at the cell edge.

10. The apparatus of claim 1 , wherein the RRM measurements include one or more of: intra-frequency measurements, inter-frequency measurements, or inter-radio access technology measurements.

11. The apparatus of claim 1 , wherein the first configuration is applied when the UE is in a radio resource control connected mode.

12. The apparatus of claim 1 , wherein the one or more processors, to perform the RRM measurements, are configured to perform the RRM measurements based at least in part on parameters that are specific to a mode of the UE, wherein the mode is one of a radio resource control idle mode or a radio resource control connected mode.

13. The apparatus of claim 1 , wherein the one or more processors, to receive the first configuration, are configured to receive the first configuration via dedicated signaling or via broadcast signaling.

14. The apparatus of claim 1 , wherein the one or more processors are further configured to:

transmit, to the network entity, capability signaling that indicates a capability of the UE; and

receive the first configuration based at least in part on the capability signaling.

15. The apparatus of claim 1 , wherein the one or more processors are further configured to:

transmit, to the network entity, UE assistance information that indicates a request for the first configuration.

16. The apparatus of claim 1 , wherein:

the one or more processors, to receive the first configuration, are configured to receive the first configuration via a system information block while the UE is operating in a radio resource control connected mode; and

the one or more processors, to perform the RRM measurements, are configured to perform the RRM measurements autonomously based at least in part on the first configuration.

17. The apparatus of claim 1 , wherein the first configuration is included in a plurality of configurations available from the network entity, wherein the plurality of configurations include the first configuration, another configuration for low mobility UEs, and the second configuration for not-at-cell-edge UEs.

18. The apparatus of claim 1 , wherein the UE is a reduced capability UE.

19. The apparatus of claim 1 , wherein the UE is a non-reduced capability UE.

20. A method of wireless communication performed by a user equipment (UE), comprising:

receiving, from a network entity, a first configuration associated with radio resource management (RRM) measurement relaxation based at least in part on the UE being stationary,

wherein the UE is stationary based at least in part on a difference between a threshold value and a serving cell received signal level (Srxlev) being less than a delta value for a period of time;

receiving, from the network entity, a second configuration, that is applicable only when the first configuration is enabled, associated with RRM measurement relaxation and associated with the UE not being located at a cell edge,

wherein the UE is not located at the cell edge based at least in part on a signal strength of the UE satisfying another threshold value; and

performing RRM measurements based at least in part on the first configuration and the second configuration.

21. The method of claim 20 , wherein:

the UE is associated with a fixed location, as indicated in a subscription associated with the UE.

22. The method of claim 20 , wherein:

the first configuration is applied when the UE is in a radio resource control idle mode; or

the first configuration is applied when the UE is in a radio resource control connected mode.

23. The method of claim 20 , wherein the second configuration is applicable to stationary UEs.

24. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:

receive, from a network entity, a first configuration associated with radio resource management (RRM) measurement relaxation based at least in part on the UE being stationary,

wherein the UE is stationary based at least in part on a difference between a threshold value and a serving cell received signal level (Srxlev) being less than a delta value for a period of time;

receive, from the network entity, a second configuration, that is applicable only when the first configuration is enabled, associated with RRM measurement relaxation and associated with the UE not being located at a cell edge,

wherein the UE is not located at the cell edge based at least in part on a signal strength of the UE satisfying another threshold value; and

perform RRM measurements based at least in part on the first configuration and the second configuration.

25. The non-transitory computer-readable medium of claim 24 , wherein:

the UE that is stationary is associated with a fixed location, as indicated in a subscription associated with the UE.

26. The non-transitory computer-readable medium of claim 24 , wherein performing the RRM measurements comprises performing the RRM measurements based at least in part on a scaling factor associated with an interval of the RRM measurements, wherein the scaling factor is based at least in part on the UE being stationary and the UE being located at the cell edge, and wherein the scaling factor associated with the RRM measurements is different for the UE that is stationary as compared to a scaling factor associated with the RRM measurements for a UE having low mobility.

27. The non-transitory computer-readable medium of claim 24 , wherein the one or more instructions, that cause the UE to perform the RRM measurements, cause the UE to stop the RRM measurements for a period of time based at least in part on the UE being stationary and the UE being not located at the cell edge.

28. An apparatus for wireless communication, comprising:

means for receiving, from a network entity, a first configuration associated with radio resource management (RRM) measurement relaxation based at least in part on the apparatus being stationary,

wherein the apparatus is stationary based at least in part on a difference between a threshold value and a serving cell received signal level (Srxlev) being less than a delta value for a period of time;

means for receiving, from the network entity, a second configuration, that is applicable only when the first configuration is enabled, associated with RRM measurement relaxation and associated with the apparatus not being located at a cell edge,

wherein the apparatus is not located at the cell edge based at least in part on a signal strength of the apparatus satisfying another threshold value; and

means for performing RRM measurements based at least in part on the first configuration and the second configuration.

29. The apparatus of claim 28 , wherein the second configuration is applicable to stationary UEs.

30. The apparatus of claim 28 , wherein the means for performing the RRM measurements comprises:

means for stopping the RRM measurements for a period of time based at least in part on the apparatus being stationary and the apparatus being not located at the cell edge; or

means for performing the RRM measurements based at least in part on parameters that are specific to a mode of the apparatus, wherein the mode is one of a radio resource control idle mode or a radio resource control connected mode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 23, 2022
From: HE, LINHAI
To: QUALCOMM INCORPORATED
Reel/Frame 059074/0908 →
Continuity (2)
Provisional Application 63166514 · Mar 26, 2021
Related Publication 20220312243A1 · Sep 29, 2022
References Cited (22)
US 20150350976A1 · Kodali · 2015 [cited by examiner]
US 20190335317A1 · Zhou · 2019 [cited by examiner]
US 20200314816A1 · Yi · 2020 [cited by examiner]
US 20210076275A1 · Yiu et al. · 2021 [cited by applicant]
US 20210105643A1 · Kim · 2021 [cited by examiner]
US 20210400589A1 · Yiu · 2021 [cited by examiner]
US 20220070706A1 · Kusashima · 2022 [cited by examiner]
US 20220232471A1 · Laselva · 2022 [cited by examiner]
US 20220264384A1 · Lee et al. · 2022 [cited by applicant]
US 20240073729A1 · Hu · 2024 [cited by examiner]
CN 114503643A · 2022 [cited by applicant]
CN 114514769A · 2022 [cited by applicant]
WO WO2020069155A2 · 2020 [cited by applicant]
WO WO2020089513A1 · 2020 [cited by applicant]
WO WO2021226028A1 · 2021 [cited by applicant]
Ericsson (Email Rapporteur): “[98#52] [NB-IoT] Power Consumption for RRM”, 3GPP Draft, 3GPP TSG-RAN2 Meeting #99, R2-1708277 Email Report 98_52 Power Consumption for RRM, 3rd Generation Partnership Project (3GPP), Mobil… [cited by applicant]
International Search Report and Written Opinion—PCT/US2022/070686—ISA/EPO—May 9, 2022. [cited by applicant]
Qualcomm Incorporated: “RRM Relaxations for RedCap UEs”, 3GPP Draft, R2-2107218, 3GPP TSG-RAN WG2 Meeting #115-e, 3rd Generation Partnership Project (3GPP), Mobile Competence Centre, 650, Route Des Lucioles, F-06921, So… [cited by applicant]
3GPP: “3rd Generation Partnership Project, Technical Specification Group Radio Access Network, Study on Support of Reduced Capability NR Devices(Release 17)”, 3GPP TR 38.875 V1.1.0, Mar. 2021, R1-2102270, 136 Pages. [cited by applicant]
Ericsson: “Further Evaluations of RRM Relaxation”, 3GPP TSG-RAN WG2 #113e, Tdoc R2-2100987, Electronic meeting, Jan. 25, 2021-Feb. 5, 2021, pp. 1-10. [cited by applicant]
Huawei., et al., “RRM Measurement Relaxation for Redcap UE”, 3GPP TSG-RAN WG2 Meeting #111 electronic, R2-2007347, Online, Aug. 17-Aug. 28, 2020, pp. 1-4. [cited by applicant]
Samsung: “RRM Relaxation for RedCap Devices”, 3GPP TSG-RAN WG2 Meeting #113-e, R2-2101877, 3rd Generation Partnership Project, Mobile Competence Centre, 650, Route Des Lucioles, F-06921 Sophia-Antipolis Cedex, France, v… [cited by applicant]