Invention Application
US20070071071A1 Methods and apparatus to perform frequency-domain equalization for channels with large delay-spreads 有权
对具有较大延迟传播的信道执行频域均衡的方法和装置

  • Patent Title: Methods and apparatus to perform frequency-domain equalization for channels with large delay-spreads
  • Patent Title (中): 对具有较大延迟传播的信道执行频域均衡的方法和装置
  • Application No.: US11518559
    Application Date: 2006-09-08
  • Publication No.: US20070071071A1
    Publication Date: 2007-03-29
  • Inventor: Yuan LiToshio Nagata
  • Applicant: Yuan LiToshio Nagata
  • Main IPC: H04B1/00
  • IPC: H04B1/00 H04L27/28
Methods and apparatus to perform frequency-domain equalization for channels with large delay-spreads
Abstract:
Methods and apparatus to perform frequency-domain equalization in high-speed downlink packet access (HSDPA) receivers for wireless channels with large delay-spreads are disclosed. An example method comprises computing a first frequency-domain equalizer (FDE) coefficient for a first set of multipaths, computing a second FDE coefficient for a second set of multipaths, computing a first equalized signal by equalizing a received code division multiple access (CDMA) signal with the first FDE coefficient, computing a second equalized signal by equalizing the received CDMA signal with the second FDE coefficient, delaying the first equalized signal by a delay difference between the first and the second sets, and combining the delayed first equalized signal and the second equalized signal.
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