Invention Grant
US07397844B2 Method and apparatus for processing a modulated signal using an equalizer and a rake receiver 有权
使用均衡器和耙式接收器来处理调制信号的方法和装置

  • Patent Title: Method and apparatus for processing a modulated signal using an equalizer and a rake receiver
  • Patent Title (中): 使用均衡器和耙式接收器来处理调制信号的方法和装置
  • Application No.: US11267070
    Application Date: 2005-11-03
  • Publication No.: US07397844B2
    Publication Date: 2008-07-08
  • Inventor: John E. SmeeAhmad Jalali
  • Applicant: John E. SmeeAhmad Jalali
  • Applicant Address: US CA San Diego
  • Assignee: QUALCOMM Incorporated
  • Current Assignee: QUALCOMM Incorporated
  • Current Assignee Address: US CA San Diego
  • Agent Alex C. Chen; Alan C. Gordon; Thomas R. Rouse
  • Main IPC: H04B1/00
  • IPC: H04B1/00
Method and apparatus for processing a modulated signal using an equalizer and a rake receiver
Abstract:
In a method for achieving higher S/N, one or more signals are received and processed to provide one or more streams of samples. In a first processing scheme, the sample stream(s) are equalized within an equalizer to generate symbol estimates, which may be subsequently processed (e.g., despread and decovered) to provide a first stream of recovered symbols. Each sample stream is filtered with a set of coefficients and may be scaled with a scaling factor. The scaled samples for all streams are then combined to generate the symbol estimates. The sample stream(s) may also be processed by a second processing scheme with one or more rake receivers to provide a second stream of recovered symbols. The signal quality for each processing scheme can be estimated and used to select either the first or second processing scheme.
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