Invention Grant
- Patent Title: Methods and systems for beam recovery and management
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Application No.: US16636210Application Date: 2018-08-09
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Publication No.: US11419173B2Publication Date: 2022-08-16
- Inventor: Yugeswar Deenoo , Tao Deng , Martino M. Freda , Ghyslain Pelletier , Faris Alfarhan
- Applicant: IDAC HOLDINGS, INC.
- Applicant Address: US DE Wilmington
- Assignee: IDAC HOLDINGS, INC.
- Current Assignee: IDAC HOLDINGS, INC.
- Current Assignee Address: US DE Wilmington
- Agency: Flaster Greenberg, P.C.
- International Application: PCT/US2018/046086 WO 20180809
- International Announcement: WO2019/032882 WO 20190214
- Main IPC: H04B7/08
- IPC: H04B7/08 ; H04B7/06 ; H04W76/19 ; H04W76/16 ; H04W72/12 ; H04W72/14 ; H04W74/08 ; H04W88/02

Abstract:
A system and methods for beam failure recovery and management for multi-carrier communications with beamforming are disclosed herein. A wireless transmit/receive unit (WTRU) may monitor for and detect a beam failure of a beam associated with a secondary cell (Scell). The WTRU may select an Scell candidate beam. The WTRU may transmit using a selected uplink (UL) resource in a primary cell (SpCell) a medium access control (MAC) control element (CE) including an indication of Scell beam failure and identifying the selected candidate beam. The WTRU may receive an Scell beam failure indication response on the SpCell indicating an SCell index and a downlink (DL) quasi co-location (QCL) reference associated with the Scell. The WTRU may verify that the DL QCL reference matches with the candidate beam. The WTRU may perform random access on the SCell using the selected QCL reference and the selected candidate beam.
Public/Granted literature
- US20200374960A1 METHODS AND SYSTEMS FOR BEAM RECOVERY AND MANAGEMENT Public/Granted day:2020-11-26
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