Invention Grant
- Patent Title: Context release based on expiry of a network radio access network notification area update timer
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Application No.: US16800575Application Date: 2020-02-25
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Publication No.: US11330663B2Publication Date: 2022-05-10
- Inventor: Kyungmin Park , Esmael Dinan
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Jefferson IP Law, LLP
- Main IPC: H04W76/27
- IPC: H04W76/27 ; H04W8/00 ; H04W76/38 ; H04W8/18 ; H04W68/00 ; H04W24/04 ; H04W60/00

Abstract:
A base station transmits to a wireless device, a first message indicating a RRC state transition of the wireless device from an RRC connected state to an RRC inactive state. The first message indicates a value associated with a wireless device radio-access-network notification area (RNA) update timer for a periodic RNA update procedure. The base station receives an RNA update from the wireless device in response to expiry of the wireless device RNA update timer. A determination is made that the periodic RNA update is unsuccessful based on expiry of a network RNA update timer. A second message is transmitted by the base station to an AMF in response to the determination. The second message indicates a wireless device context release request for the wireless device. The second message comprises an identifier of the wireless device.
Information query