Invention Grant
- Patent Title: Layer 2 operation for Layer 1 and Layer 2-centric inter-cell mobility
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Application No.: US17593228Application Date: 2021-04-01
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Publication No.: US11963056B2Publication Date: 2024-04-16
- Inventor: Fangli Xu , Chunhai Yao , Dawei Zhang , Haijing Hu , Qiming Li , Wei Zeng , Yang Tang , Yuqin Chen , Yushu Zhang
- 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/CN2021/084934 2021.04.01
- International Announcement: WO2022/205310A 2022.10.06
- Date entered country: 2021-09-13
- Main IPC: H04W36/08
- IPC: H04W36/08 ; H04W36/00 ; H04W76/20 ; H04W76/30

Abstract:
Layer 2 handling during a cell change procedure includes decoding an RRC reconfiguration message received from a first cell. The RRC reconfiguration message includes a Layer 1 (L1) configuration corresponding to a second cell. The first cell and the second cell share an SDAP entity, a PDCP entity, an RLC entity, and a MAC entity. The first cell and the second cell have a separate L1 entity. In response to decoding the RRC reconfiguration message, the L1 configuration corresponding to the second cell is stored. A cell change message received from the first cell is decoded. The cell change message indicates that a cell change from the first cell to the second cell is to be performed. The stored L1 configuration corresponding to the second cell is applied for data transmission and reception associated with the second cell. A cell change to the second cell is initiated.
Public/Granted literature
- US20230209423A1 LAYER 2 OPERATION FOR LAYER 1 AND LAYER 2-CENTRIC INTER-CELL MOBILITY Public/Granted day:2023-06-29
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