Invention Grant
- Patent Title: Mobile communication system, terminal device, base station device, communication method, and computer program
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Application No.: US17265912Application Date: 2019-07-10
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Publication No.: US11546962B2Publication Date: 2023-01-03
- Inventor: Masahito Umehara , Issei Kanno , 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: JPJP2018-150200 20180809
- International Application: PCT/JP2019/027396 WO 20190710
- International Announcement: WO2020/031606 WO 20200213
- Main IPC: H04W76/27
- IPC: H04W76/27

Abstract:
A base station device transmits a control signal for causing a transition from an RRC_CONNECTED state to an RRC_INACTIVE state and including connection parameter information to a terminal device. The terminal device performs uplink transmission to the base station device using the connection parameter information included in the control signal in the RRC_INACTIVE state to which the RRC_CONNECTED state has transitioned. The base station device performs uplink reception from the terminal device that is in the RRC_INACTIVE state to which the RRC_CONNECTED state has transitioned using the connection parameter information included in the control signal.
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