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    • 7. 发明申请
    • Frequency offset estimation scheme in scheduled based wireless system
    • 基于计划的无线系统中的频偏预测方案
    • US20130003568A1
    • 2013-01-03
    • US13172075
    • 2011-06-29
    • Hongyu XieYuan ZhuangMurat MeseBrima Ibrahim
    • Hongyu XieYuan ZhuangMurat MeseBrima Ibrahim
    • H04W24/00
    • H04L27/2675H04L27/2659H04L27/266
    • A technique to provide frequency offset estimation for packets transmitted during a service period allocated strictly for designated source and destination devices. The destination device obtains coarse and fine frequency offset estimation from the short and long preambles. A residual frequency offset is tracked for the data blocks and combined with the coarse and fine frequency offset to obtain a total frequency offset to apply to the data blocks. The total frequency offset value at the end of the first packet is saved and, instead of again estimating the coarse and fine frequency offset values with the short and long preambles of the second packet, the saved total frequency offset value is used as the initialization value to add to the residual frequency offset in the second packet. The saved offset value at the end of each packet becomes the initialization value for the subsequent packet.
    • 一种用于为在严格为指定的源和目的地设备分配的服务周期期间发送的分组提供频偏估计的技术。 目标设备从短和长前导码中获得粗略和精细的频率偏移估计。 跟踪数据块的残留频率偏移,并与粗略和精细频率偏移相结合,以获得应用于数据块的总频率偏移量。 保存第一个分组结束时的总频率偏移值,而不是再次使用第二个分组的短和长前导码估计粗略和精细的频率偏移值,将保存的总频偏移值用作初始化值 以添加到第二分组中的剩余频率偏移。 每个数据包结束时保存的偏移量值将成为后续数据包的初始化值。