- 专利标题: Timing Advance in Beam Failure Recovery Request Transmission
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申请号: US16227562申请日: 2018-12-20
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公开(公告)号: US20190215048A1公开(公告)日: 2019-07-11
- 发明人: Ali Cagatay Cirik , Esmael Dinan , Alireza Babaei , Hyoungsuk Jeon , Kyungmin Park , Hua Zhou
- 申请人: Ali Cagatay Cirik , Esmael Dinan , Alireza Babaei , Hyoungsuk Jeon , Kyungmin Park , Hua Zhou
- 主分类号: H04B7/06
- IPC分类号: H04B7/06 ; H04W74/08 ; H04L5/00 ; H04B7/0408 ; H04W24/08 ; H04W72/04 ; H04W76/27 ; H04W76/28 ; H04W24/04
摘要:
A wireless device receives message(s) comprising configuration parameter(s) indicating reference signal(s) of a cell. The configuration parameter(s) may indicate one or more preambles for a beam failure recovery procedure. The configuration parameter(s) may indicate a time alignment timer of a timing advance group comprising the cell. The time alignment timer may start in response to receiving a timing advance command for the timing advance group. The beam failure recovery procedure may be initiated in response to detecting a beam failure of the cell. The beam failure of the cell may be detected based on the reference signal(s) of the cell. A preamble of the one or more preambles may be transmitted for the beam failure recovery procedure. The beam failure recovery procedure may be aborted in response to an expiry of the time alignment timer during the beam failure recovery procedure.
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