发明授权
US08467365B1 Method and system for defining search windows based on mobile station location
失效
基于移动台位置定义搜索窗口的方法和系统
- 专利标题: Method and system for defining search windows based on mobile station location
- 专利标题(中): 基于移动台位置定义搜索窗口的方法和系统
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申请号: US12019374申请日: 2008-01-24
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公开(公告)号: US08467365B1公开(公告)日: 2013-06-18
- 发明人: Deveshkumar Rai , Manoj Shetty , Sachin R. Vargantwar , Siddharth S. Oroskar , Debasish Sarkar
- 申请人: Deveshkumar Rai , Manoj Shetty , Sachin R. Vargantwar , Siddharth S. Oroskar , Debasish Sarkar
- 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: H04B7/216
- IPC分类号: H04B7/216
摘要:
A mobile station uses a search window to search for a target pilot signal transmitted by a target transmitter in a spread spectrum communication system. The search window may be centered on the expected phase of the target pilot signal at the mobile station. To calculate the expected phase, the mobile station estimates a transmission delay associated with the target pilot signal, based on at least the target transmitter's location and the mobile station's location. The transmission delay may account for the time it takes for the target pilot signal to propagate from the target transmitter to the mobile station. The expected phase of the target pilot signal may then be calculated based on at least a nominal phase of the target pilot signal (e.g., the phase when transmitted by the target transmitter) and the estimated transmission delay.
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