Invention Grant
US08270367B2 Handover control apparatus, relay router, gateway apparatus, access router, base station, mobile communication system, and handover control method
有权
切换控制装置，中继路由器，网关装置，接入路由器，基站，移动通信系统和切换控制方法
- Patent Title: Handover control apparatus, relay router, gateway apparatus, access router, base station, mobile communication system, and handover control method
- Patent Title (中): 切换控制装置，中继路由器，网关装置，接入路由器，基站，移动通信系统和切换控制方法
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Application No.: US11963133Application Date: 2007-12-21
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Publication No.: US08270367B2Publication Date: 2012-09-18
- Inventor: Shinichi Isobe , Ken Igarashi , Atsushi Iwasaki , Kenji Nishimura , Takashi Koshimizu
- Applicant: Shinichi Isobe , Ken Igarashi , Atsushi Iwasaki , Kenji Nishimura , Takashi Koshimizu
- Applicant Address: JP Tokyo
- Assignee: NTT DoCoMo, Inc.
- Current Assignee: NTT DoCoMo, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2002-060893 20020306
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04B7/212
Abstract:
A mobile communication system 100 according to the present invention comprises handover control apparatus 1 and radio terminal unit 10. The handover control apparatus 1 controls handover of a radio terminal unit 10 between access routers 31-34 provided in respective base stations 21-24 for radio communication with the radio terminal unit 10. The handover control apparatus 1 counts the number of relay routers for every candidate access router 32-34 for a destination of the radio terminal unit 10, from a gateway device 52 and determines a COR on the basis of the number of relay routers for every access router 32, 33, 34 thus counted.
Public/Granted literature
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