Invention Grant
- Patent Title: Intersystem change between different radio access networks
- Patent Title (中): 不同无线电接入网络之间的系统间变化
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Application No.: US14388855Application Date: 2013-03-15
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Publication No.: US09549384B2Publication Date: 2017-01-17
- Inventor: Iskren Ianev , Yannick Lair , Kouhei Gotou
- Applicant: NEC CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NEC CORPORATION
- Current Assignee: NEC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: GB1205827.7 20120330
- International Application: PCT/JP2013/058886 WO 20130315
- International Announcement: WO2013/146831 WO 20131003
- Main IPC: H04W72/00
- IPC: H04W72/00 ; H04W60/00 ; H04W36/00 ; H04W88/06 ; H04W76/02 ; H04W36/14

Abstract:
A wireless terminal can communicate with two radio access networks (RAN) (304, 306) of different types. The wireless terminal can register simultaneously with a RAN of the first type and a RAN of the second type and can wirelessly connect to a RAN of either the first type or the second type in a connected state. The wireless terminal when registered with both a first RAN and a second RAN and when wirelessly connected to the first RAN in the connected state, receives a mobility signal via the first RAN indicating a RAN of the second type and, in response to receiving the mobility signal and in response to being so registered with the first RAN and second RAN, transmits an access trigger signal (417). The access trigger signal indicates that the wireless terminal is to be connected to the second RAN in the connected state.
Public/Granted literature
- US20150087354A1 INTERSYSTEM CHANGE BETWEEN DIFFERENT RADIO ACCESS NETWORKS Public/Granted day:2015-03-26
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