Invention Application
- Patent Title: BEAM FAILURE RECOVERY FOR SERVING CELL
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Application No.: US17764441Application Date: 2019-09-30
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Publication No.: US20220337472A1Publication Date: 2022-10-20
- Inventor: Samuli TURTINEN , Timo KOSKELA , Chunli WU
- Applicant: NOKIA TECHNOLOGIES OY
- Applicant Address: FI Espoo
- Assignee: NOKIA TECHNOLOGIES OY
- Current Assignee: NOKIA TECHNOLOGIES OY
- Current Assignee Address: FI Espoo
- International Application: PCT/CN2019/109500 WO 20190930
- Main IPC: H04L41/0654
- IPC: H04L41/0654 ; H04L5/00 ; H04L41/0681 ; H04B7/0408

Abstract:
A method of beam failure recovery for a serving cell is disclosed. In response to a beam failure on a first bandwidth part in a serving cell, a first device detects a first candidate beam associated with the first bandwidth part (310). In response to a failure of detecting the first candidate beam, the first device switches from the first bandwidth part to a second bandwidth part in the serving cell. The second bandwidth part is configured with at least one reference signal identifying a second candidate beam for recovery from the beam failure (320). The first device detects the second candidate beam based on the at least one reference signal (330). In response to a success of detecting the second candidate beam, the first device transmits information concerning the second candidate beam to a second device for the recovery from the beam failure (340).
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