发明授权
- 专利标题： Method and system for data rate based vertical handoff
- 专利标题（中）： 基于数据速率的垂直切换的方法和系统
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申请号： US11091299申请日： 2005-03-28
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公开(公告)号： US07551586B1公开(公告)日： 2009-06-23
- 发明人: Meng Y. Yew , Hector M. Ribas , Jason P. Sigg , Abhijit V. Apte , Nandish M. Chalishazar
- 申请人： Meng Y. Yew , Hector M. Ribas , Jason P. Sigg , Abhijit V. Apte , Nandish M. Chalishazar
- 申请人地址： US KS Overland Park
- 专利权人： Sprint Spectrum L.P.
- 当前专利权人： Sprint Spectrum L.P.
- 当前专利权人地址： US KS Overland Park
- 主分类号： H04W4/00
- IPC分类号： H04W4/00 ; H04B7/216 ; H04M1/00 ; H04W36/00
摘要：
A method and system for using data rate as a basis to allow or deny handoff from an IS-856 (e.g., EV-DO) communication system to an IS-2000 (e.g., 1xRTT) communication system. A base station detects that a hybrid terminal has received a threshold low forward link IS-856 data rate for a threshold time period, and the base station will responsively evaluate the IS-2000 system to determine if the IS-2000 system has sufficient resources to provide at least as good a data rate as the IS-856 threshold data rate. If the base station thereby determines that the IS-2000 system is a good alternative, then the base station will allow a handoff to occur when the terminal seeks to handoff to IS-2000. On the other hand, if the base station thereby determines that the IS-2000 system is not a good alternative, then the base station will not allow the handoff to IS-2000.
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