US 12,395,869 B2
Radio link monitoring enhancements for power savings
Manasa Raghavan, Sunnyvale, CA (US); Hua Li, Beijing (CN); Jie Cui, Sunnyvale, CA (US); Hong He, Sunnyvale, CA (US); and Yang Tang, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/290,692
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Oct. 30, 2019, PCT No. PCT/US2019/058758
§ 371(c)(1), (2) Date Apr. 30, 2021,
PCT Pub. No. WO2020/092498, PCT Pub. Date May 7, 2020.
Claims priority of provisional application 62/755,188, filed on Nov. 2, 2018.
Prior Publication US 2022/0022064 A1, Jan. 20, 2022
Int. Cl. H04W 24/08 (2009.01); H04L 5/00 (2006.01); H04W 52/02 (2009.01)
CPC H04W 24/08 (2013.01) [H04L 5/0048 (2013.01); H04W 52/0216 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A user equipment (UE) comprising:
a radio front end circuitry; and
a baseband circuitry coupled to the radio front end circuitry, the baseband circuitry configured to:
determine, based on a received configuration, one or more Radio Link Monitoring Reference Signal (RLM-RS) resources;
determine, for frequency range 1 (FR1), a first scaling factor to be used to scale a first Radio Link Monitoring (RLM) evaluation period corresponding to a first type of RLM-RS resource of the one or more RLM-RS resources based on a mobility or a coverage of the UE;
multiplying the first scaling factor and the first RLM evaluation period to provide a scaled first RLM evaluation period;
determine, for frequency range 1 (FR1), a second scaling factor to be used to scale a second RLM evaluation period corresponding to a second type of RLM-RS resource of the one or more RLM-RS resources based on the mobility or the coverage of the UE, wherein the second scaling factor is different from the first scaling factor;
multiplying the second scaling factor and the second RLM evaluation period to provide a scaled second RLM evaluation period;
monitor the one or more RLM-RS resources;
estimate a first downlink (DL) radio link quality on the first type of RLM-RS resources over the scaled first RLM evaluation period; and
estimate a second DL radio link quality on the second type of RLM-RS resources over the scaled second RLM evaluation period.