Invention Grant
- Patent Title: Beam failure recovery techniques for multiple transmission-reception points in a secondary cell
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Application No.: US17328907Application Date: 2021-05-24
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Publication No.: US12323218B2Publication Date: 2025-06-03
- Inventor: Mostafa Khoshnevisan , Tao Luo , Yan Zhou , Linhai He , Peter Gaal , Juan Montojo , Xiaoxia Zhang , Jing Sun
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Holland & Hart LLP
- Main IPC: H04B7/08
- IPC: H04B7/08 ; H04W72/02 ; H04W72/044 ; H04W76/19 ; H04W36/00

Abstract:
Methods, systems, and devices for wireless communications are described in which one of multiple transmission-reception points (TRPs) may be identified for beam failure procedures in a secondary cell (Scell). Reference signals of the different TRPs may have a different control resource set pool index values, and a user equipment (UE) may monitor such reference signals as part of a beam failure detection (BFD) procedure. The UE may identify one or more beams associated with a particular pool index value that has a degraded channel quality, and may determine to declare a beam failure. The UE may transmit a link recovery request to a serving cell that requests uplink resources for a beam failure recovery message. The UE may receive an uplink grant and may transmit a beam failure recovery message that indicates the Scell and TRP with the beam failure.
Public/Granted literature
- US20210376909A1 BEAM FAILURE RECOVERY TECHNIQUES FOR MULTIPLE TRANSMISSION-RECEPTION POINTS IN A SECONDARY CELL Public/Granted day:2021-12-02
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