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
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申请号: US12062774申请日: 2008-04-04
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公开(公告)号: US07944999B2公开(公告)日: 2011-05-17
- 发明人: Jun Ma , Nabil Yousef
- 申请人: Jun Ma , Nabil 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
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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