发明授权
US06553230B1 Method and apparatus for performing soft handoff between cells of large differing radii
失效
用于在大的不同半径的单元之间进行软切换的方法和装置
- 专利标题: Method and apparatus for performing soft handoff between cells of large differing radii
- 专利标题(中): 用于在大的不同半径的单元之间进行软切换的方法和装置
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申请号: US09292662申请日: 1999-04-16
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公开(公告)号: US06553230B1公开(公告)日: 2003-04-22
- 发明人: Trevor T. Plestid , Azeem Ahmad , Michael S. Crowe , Sarvesh R. Sharma , Shahid R. Chaudry , Neil McGowan
- 申请人: Trevor T. Plestid , Azeem Ahmad , Michael S. Crowe , Sarvesh R. Sharma , Shahid R. Chaudry , Neil McGowan
- 主分类号: H04Q720
- IPC分类号: H04Q720
摘要:
A method for allowing a mobile station to find a code transmitted by a base station which has a propagation delay to the mobile station which is much larger or smaller than a propagation delay between the mobile station and a base station from which it derived a time reference is provided. In the context of IS-95, a PN offset is sent to the mobile station to identify which target base station pilot signals to search for. By sending a virtual PN offset which differs from the real PN offset, the mobile station can find the target base station signals where normally they would fall outside the mobile station's search window.
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