Invention Grant
- Patent Title: Beam failure recovery
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Application No.: US17436125Application Date: 2020-03-26
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Publication No.: US12200512B2Publication Date: 2025-01-14
- Inventor: Yushu Zhang , Gang Xiong , Yujian Zhang , Seau S. Lim
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Eschweiler & Potashnik, LLC
- International Application: PCT/US2020/024837 WO 20200326
- International Announcement: WO2020/198419 WO 20201001
- Main IPC: H04W24/04
- IPC: H04W24/04 ; H04W74/0833

Abstract:
Techniques discussed herein can facilitate beam failure recovery (BFR) for a Secondary Cell (SCell) or Primary SCell (PSCell). One example embodiment comprises an apparatus configured to be employed in a User Equipment (UE), comprising: one or more processors configured to: generate a Physical Random Access Channel (PRACH) associated with a beam failure recovery request (BFRQ); generate a Physical Uplink Shared Channel (PUSCH) message associated with the BFRQ, wherein the PUSCH message comprises at least one Medium Access Control (MAC) Control Element (CE) that comprises one or more of an index associated with a cell for which beam failure was detected or an index associated with a new beam; and process a Physical Downlink Shared Channel (PDSCH) as a random access response (RAR) associated with the PRACH and the PUSCH message.
Public/Granted literature
- US20220159482A1 BEAM FAILURE RECOVERY Public/Granted day:2022-05-19
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