Invention Grant
- Patent Title: Radio terminal, base station, and methods and non-transitory computer-readable media therefor
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Application No.: US16473299Application Date: 2017-11-21
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Publication No.: US11109286B2Publication Date: 2021-08-31
- Inventor: Hisashi Futaki , Sadafuku Hayashi
- Applicant: NEC CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NEC CORPORATION
- Current Assignee: NEC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JPJP2017-000802 20170105
- International Application: PCT/JP2017/041820 WO 20171121
- International Announcement: WO2018/128018 WO 20180712
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W76/27 ; H04W36/14 ; H04W84/04 ; H04W88/06

Abstract:
When a radio terminal (2) in a first RAT RRC_INACTIVE state in the first radio access network (RAN) (3) and having a Non-Access Stratum (NAS) connection with a first core network (CN) (4) associated with the first RAT moves to a cell (51) of a second RAN (6), the radio terminal (2) alters an RRC state transition operation of the radio terminal (2) depending on whether the second RAN (6) supports interworking with at least one of the first CN (4) and the first RAN (3).
Public/Granted literature
- US20190342804A1 RADIO TERMINAL, BASE STATION, AND METHODS AND NON-TRANSITORY COMPUTER-READABLE MEDIA THEREFOR Public/Granted day:2019-11-07
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