Invention Publication
- Patent Title: Failure Handling for Secondary Cell
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Application No.: US18475801Application Date: 2023-09-27
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Publication No.: US20240022929A1Publication Date: 2024-01-18
- Inventor: Fangli XU , Chunhai YAO , Clive E. RODGERS , Dawei ZHANG , Haijng HU , Haitong SUN , Wei ZENG , Yuqin CHEN , Yushu ZHANG , Zhibin WU
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Main IPC: H04W24/04
- IPC: H04W24/04 ; H04W74/00

Abstract:
A user equipment (UE) is connected to a wireless network and operates in a carrier aggregation (CA) state that includes a first connection to a primary cell and a second connection to a secondary cell. The UE determines a beam failure has occurred for one of the first connection or the second connection and initiates a beam failure recovery (BFR) operation. The BFR operation includes transmitting, to the primary cell, a BFR Medium Access Control (MAC) Control Element (CE).
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