Invention Grant
- Patent Title: Dual active protocol stack handovers above 24 GHz
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Application No.: US17438179Application Date: 2021-05-10
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Publication No.: US11963058B2Publication Date: 2024-04-16
- Inventor: Qiming Li , Chunhai Yao , Dawei Zhang , Huaning Niu , Jie Cui , Manasa Raghavan , Xiang Chen , Yang Tang , Yushu Zhang
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- International Application: PCT/CN2021/092578 2021.05.10
- International Announcement: WO2022/236525A 2022.11.17
- Date entered country: 2021-09-10
- Main IPC: H04W36/18
- IPC: H04W36/18 ; H04W36/00

Abstract:
Apparatuses, systems, and methods for performing dual active protocol stack handovers in a frequency range above 24 GHz. A UE may transmit an indication to a base station indicating a dual active protocol stack (DAPS) handover capability of the UE corresponding to a frequency range (FR) above 24 GHz. The UE may receive, from a target cell of the one or more cells, a command to perform a DAPS handover from a source cell to the target cell. While performing the DAPS handover and maintaining a data connection with the source cell, the UE may perform measurements on the target cell followed by a physical random access channel (PRACH) procedure. The UE may then receive a source cell release command from the target cell and release the data connection with the source cell.
Public/Granted literature
- US20230337094A1 Dual Active Protocol Stack Handovers Above 24 GHz Public/Granted day:2023-10-19
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