发明授权
- 专利标题: METHOD AND APPARATUS FOR CONFIGURING A RAKE RECEIVER
- 专利标题(中): 方法和设备配置的RAKE接收机
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申请号: EP99963768.9申请日: 1999-11-26
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公开(公告)号: EP1138126B1公开(公告)日: 2004-03-03
- 发明人: ATARIUS, Roozbeh , ERIKSSON, H kan , PALENIUS, Torgny , CARLSSON, Torsten , GUSTAFSSON, Kjell , ÖSTBERG, Christer
- 申请人: Telefonaktiebolaget L M Ericsson (Publ)
- 申请人地址: 126 25 Stockholm SE
- 专利权人: Telefonaktiebolaget L M Ericsson (Publ)
- 当前专利权人: Telefonaktiebolaget L M Ericsson (Publ)
- 当前专利权人地址: 126 25 Stockholm SE
- 代理机构: O'Connell, David Christopher
- 优先权: US204370 19981204
- 国际公布: WO2000035112 20000615
- 主分类号: H04B1/707
- IPC分类号: H04B1/707
摘要:
A searcher uses an input signal, and for example, a matched filter to generate a first set of candidate paths. A selector uses the input signal and the first set of candidate paths to generate a second set of paths. The second set of paths is used to configure the fingers of a RAKE receiver. According to one aspect of the invention, the first set of candidate paths contains M paths, and the second stage uses M correlators to generate a set of M correlation values. The second stage uses the M correlation values to select N paths that are used to configure the N fingers of the RAKE receiver. According to another aspect of the invention, the first set of candidate paths contains M paths, and the second stage uses a multiple of M correlators to track the M paths and generate a set of M estimates. The second stage uses the M estimates to select N paths that are used to configure the N fingers of the RAKE receiver. According to another aspect of the invention, the selector can generate new sets of N paths while the searcher is either active or inactive. The receiver can use a quality signal or a counter to notify the searcher and/or the selector to generate new sets of paths. The selector decreases the need to continuously run the matched filter. The receiver car re-configure the fingers without having to search for new paths. The receiver can also find paths that are uncorrelated and less susceptible to fading.
公开/授权文献
- EP1138126A1 METHOD AND APPARATUS FOR CONFIGURING A RAKE RECEIVER 公开/授权日:2001-10-04
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