Invention Grant
- Patent Title: TA update in RRC_INACTIVE
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Application No.: US16338867Application Date: 2019-02-11
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Publication No.: US11219084B2Publication Date: 2022-01-04
- Inventor: Christofer Lindheimer , Icaro L. J. da Silva , Gunnar Mildh , Paul Schliwa-Bertling
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Murphy, Bilak & Homiller, PLLC
- International Application: PCT/SE2019/050110 WO 20190211
- International Announcement: WO2019/160475 WO 20190822
- Main IPC: H04W76/27
- IPC: H04W76/27 ; H04W76/19 ; H04W76/28 ; H04W60/04 ; H04W68/08 ; H04W74/00

Abstract:
According to an aspect, a wireless device determines, while in an RRC Inactive state, that a Radio Access Network Notification Area Update, RNAU, is needed. The wireless device further evaluates whether there is any other cause for resuming an RRC connected state, in addition to the need for the RNAU. The wireless device transmits an RRC Resume Request message to the network, in response to the determining. The RRC Resume Request message includes a cause indicator indicating an RNAU as a cause for resuming a RRC Connected state in the event that said evaluating identifies no other cause for resuming the RRC connected state.
Information query