发明授权
US08761081B2 Method and apparatus for cell searching in asynchronous CDMA systems
有权
异步CDMA系统中小区搜索的方法和装置
- 专利标题: Method and apparatus for cell searching in asynchronous CDMA systems
- 专利标题(中): 异步CDMA系统中小区搜索的方法和装置
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申请号: US10102503申请日: 2002-03-19
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公开(公告)号: US08761081B2公开(公告)日: 2014-06-24
- 发明人: Chaitali Sengupta , Yuan Kang Lee
- 申请人: Chaitali Sengupta , Yuan Kang Lee
- 申请人地址: US TX Dallas
- 专利权人: Texas Instuments Incorporated
- 当前专利权人: Texas Instuments Incorporated
- 当前专利权人地址: US TX Dallas
- 代理商 Ronald O. Neerings; Wade James Brady; Frederick J. Telecky, Jr.
- 主分类号: H04B7/216
- IPC分类号: H04B7/216
摘要:
A method for performing a cell search routine commences by using the Synchronization Channel's (SCH) Primary Synchronization Code (PSC) to acquire slot synchronization to a cell (402). This step will collect a number of hypotheses for frame timing. The method then uses a searcher algorithm such as a sequential dwell searcher that can quickly reject all of the wrong hypotheses gathered in the slot synchronization step, and determine the best hypotheses (404). This cell search routine leads to faster cell acquisition times as compared to some prior art techniques. A receiver (502) that includes a cell searcher (504) that performs the method mentioned above is also described.
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