- Patent Title: Systems and methods for beam failure recovery for multi-DCI mode
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Application No.: US17438202Application Date: 2020-05-15
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Publication No.: US12052085B2Publication Date: 2024-07-30
- Inventor: Yushu Zhang , Chunhai Yao , Dawei Zhang , Haitong Sun , Hong He , Wei Zeng , Weidong Yang
- Applicant: APPLE INC.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Dorsey & Whitney LLP
- International Application: PCT/CN2020/090498 2020.05.15
- International Announcement: WO2021/227001A 2021.11.18
- Date entered country: 2021-09-10
- Main IPC: H04B7/08
- IPC: H04B7/08 ; H04L1/20 ; H04W72/02 ; H04W72/044 ; H04W72/23 ; H04W74/0833 ; H04W76/19

Abstract:
Beam failure recovery (BFR) in a multiple Downlink Control Information (mDCI) mode may include receiving, by a user equipment (UE), a Downlink Reference Signal (DL RS) set from a next generation Node B (gNB). The DL RS set may be associated with a link between the UE and the gNB and indicate beam failure detection (BFD) is to be performed for the link. The BFR may further include performing, by the UE, a beam failure detection (BFD) for the link using the DL RS set, and performing, by the UE, a candidate beam detection (CBD) for the link, the CBD determining a candidate beam for the link by determining a beam having a reference signal receiving power (RSRP) that is larger than an RSRP threshold. The BFR may further include transmitting, by the UE, a beam failure recovery request (BFRQ) indicating the link to the gNB.
Public/Granted literature
- US20220302989A1 SYSTEMS AND METHODS FOR BEAM FAILURE RECOVERY FOR MULTI-DCI MODE Public/Granted day:2022-09-22
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