发明授权
US07944999B2 Robust fine frequency and time estimation in mobile multimedia multicast system receivers 有权
在移动多媒体多播系统接收机中的鲁棒精细频率和时间估计

  • 专利标题: Robust fine frequency and time estimation in mobile multimedia multicast system receivers
  • 专利标题(中): 在移动多媒体多播系统接收机中的鲁棒精细频率和时间估计
  • 申请号: US12062774
    申请日: 2008-04-04
  • 公开(公告)号: US07944999B2
    公开(公告)日: 2011-05-17
  • 发明人: Jun MaNabil Yousef
  • 申请人: Jun MaNabil Yousef
  • 申请人地址: US CA Lake Forest
  • 专利权人: Newport Media, Inc.
  • 当前专利权人: Newport Media, Inc.
  • 当前专利权人地址: US CA Lake Forest
  • 代理机构: Rahman LLC
  • 主分类号: H04L27/00
  • IPC分类号: H04L27/00
Robust fine frequency and time estimation in mobile multimedia multicast system receivers
摘要:
A technique for estimating a carrier frequency offset and a timing offset in a MediaFLO™ (Forward Link Only) system, wherein the method comprises receiving Orthogonal Frequency Division Multiplexing (OFDM) symbols; interpolating pilots on odd or even symbols of the received OFDM symbols; determining a phase difference between two successive symbols using the interpolated pilots; obtaining an estimate of the carrier frequency offset and the timing offset from the determined phase difference between two successive symbols; and correcting a sampling frequency in accordance with the estimated carrier frequency offset and timing offset.
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