- Patent Title: Terminal apparatus and base station apparatus in wireless communication system in which handover including relay transmission path is executed, control method thereof, and storage medium
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Application No.: US17897662Application Date: 2022-08-29
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Publication No.: US11985558B2Publication Date: 2024-05-14
- Inventor: Hailan Peng , Takeo Ohseki , Yasuhiro Suegara
- Applicant: KDDI CORPORATION
- Applicant Address: JP Tokyo
- Assignee: KDDI CORPORATION
- Current Assignee: KDDI CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP 18132196 2018.07.12
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W40/36

Abstract:
A terminal apparatus that performs communication using a communication path set between the terminal apparatus and a core network via a base station apparatus connected to the core network or via the base station apparatus and a relay apparatus that relays communication with the base station apparatus acquires information regarding candidates of a communication path to which switching should be performed from a first communication used, from the base station apparatus that functions as a serving base station in the first communication path, determines whether or not to perform switching of the communication path from the first communication path, and performs switching from the first communication path to a second communication path included in the candidates without being instructed by the serving base station, in response to the determination to perform the switching after receiving the information regarding the candidates.
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