- 专利标题: METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS PROCEDURE FOR BEAM FAILURE RECOVERY
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申请号: US17073995申请日: 2020-10-19
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公开(公告)号: US20210126698A1公开(公告)日: 2021-04-29
- 发明人: HSIN-HSI TSAI
- 申请人: FG Innovation Company Limited
- 申请人地址: HK Tuen Mun
- 专利权人: FG Innovation Company Limited
- 当前专利权人: FG Innovation Company Limited
- 当前专利权人地址: HK Tuen Mun
- 主分类号: H04B7/08
- IPC分类号: H04B7/08 ; H04W74/08 ; H04W74/02 ; H04B17/318
摘要:
A method performed by a User Equipment (UE) for Beam Failure Recovery (BFR) is provided. The method includes the UE detecting a beam failure event on a serving cell, and initiating a Random Access (RA) procedure for BFR on a Bandwidth Part (BWP) of the serving cell. The RA procedure for BFR includes performing an RA type selection after determining that the UE is not configured with any Contention-Free RA (CFRA) resource for BFR, the RA type selection including determining a 2-step RA type or a 4-step RA type as an RA type of the RA procedure for BFR based on a Reference Signal Received Power (RSRP) value of a Downlink (DL) pathloss reference, skipping performing the RA type selection after determining that the UE is configured with a CFRA resource for BFR, and determining the RA type as the 4-step RA type after skipping the RA type selection.
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