US 12,262,399 B2
Latency reduction for beam failure recovery
Yushu Zhang, Beijing (CN); Chunhai Yao, Beijing (CN); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Cupertino, CA (US); Huaning Niu, San Jose, CA (US); Jie Cui, San Jose, CA (US); Qiming Li, Beijing (CN); Sigen Ye, Whitehouse Station, NJ (US); and Wei Zeng, Saratoga, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/442,068
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Jul. 27, 2021, PCT No. PCT/CN2021/108653
§ 371(c)(1), (2) Date Sep. 22, 2021,
PCT Pub. No. WO2023/004581, PCT Pub. Date Feb. 2, 2023.
Prior Publication US 2024/0032083 A1, Jan. 25, 2024
Int. Cl. H04W 72/54 (2023.01); H04L 5/00 (2006.01)
CPC H04W 72/54 (2023.01) [H04L 5/0053 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
processing configuration information received from a network, the configuration information to configure: a first list of beam failure detection (BFD) reference signals (RSs) for a bandwidth part (BWP) of a serving cell, and a second list of BFD RSs for the BWP of the serving cell;
processing a media access control (MAC) control element (CE) received from the network;
selecting, based on the MAC CE, a BFD RS within the first list or within the second list;
determining a radio link quality based on the BFD RS; and
determining whether a beam failure is detected based on the radio link quality.