Invention Grant
US08457252B2 Method and apparatus for digital signal reception 有权
用于数字信号接收的方法和装置

  • Patent Title: Method and apparatus for digital signal reception
  • Patent Title (中): 用于数字信号接收的方法和装置
  • Application No.: US12450685
    Application Date: 2007-04-04
  • Publication No.: US08457252B2
    Publication Date: 2013-06-04
  • Inventor: Peng Liu
  • Applicant: Peng Liu
  • Applicant Address: FR
  • Assignee: Thomson Licensing
  • Current Assignee: Thomson Licensing
  • Current Assignee Address: FR
  • Agency: Jack Schwartz and Associates, PLLC
  • International Application: PCT/CN2007/001106 WO 20070404
  • International Announcement: WO2008/122144 WO 20081016
  • Main IPC: H04L27/00
  • IPC: H04L27/00 H03K9/00
Method and apparatus for digital signal reception
Abstract:
The present invention relates to a digital signal reception method and apparatus. Said digital signal receiver comprises a Common Phase Error removal unit for eliminating CPE contained in the received signal by using CSI corrected pilot sub-carriers; a channel estimation unit for estimating channel state information of the received signal after removing the CPE and feed the CSI to the CPE removal unit, and a means for generating the CSI corrected pilot sub-carriers by multiplying the CSI with 1 or −1 according to positive or negative sign of the local pilot sub-carriers only in response to continual pilots of the received signal. Said method comprises estimating the CSI of the received digital signal after removing CPE; and eliminating the CPE of the received signal by using the CSI corrected pilot sub-carriers, whereby a low complexity and high accuracy are achieved.
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