Invention Grant
US08457178B2 Frequency offset estimator 有权
频偏估计器

  • Patent Title: Frequency offset estimator
  • Patent Title (中): 频偏估计器
  • Application No.: US12055087
    Application Date: 2008-03-25
  • Publication No.: US08457178B2
    Publication Date: 2013-06-04
  • Inventor: Tao Luo
  • Applicant: Tao Luo
  • Applicant Address: US CA San Diego
  • Assignee: QUALCOMM Incorporated
  • Current Assignee: QUALCOMM Incorporated
  • Current Assignee Address: US CA San Diego
  • Agent Kenneth Vu
  • Main IPC: H04B1/00
  • IPC: H04B1/00
Frequency offset estimator
Abstract:
Determining a frequency offset of a received signal utilizing two or more multipath components of the received signal is provided herein. By way of example, the received signal can be correlated with a synchronization sequence in a time domain or a frequency domain, resulting in separation of the two or more multipath components of the received signal. Analysis of at least one of the multipath components can provide a frequency offset of the received signal. Furthermore, by analyzing the multipath components, estimation of the frequency offset can be improved as compared with single-signal analysis techniques.
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