CHANNEL ESTIMATION IN AN OFDM TRANSMISSION SYSTEM
    1.
    发明申请
    CHANNEL ESTIMATION IN AN OFDM TRANSMISSION SYSTEM 审中-公开
    OFDM传输系统中的信道估计

    公开(公告)号:US20120140835A1

    公开(公告)日:2012-06-07

    申请号:US13294555

    申请日:2011-11-11

    IPC分类号: H04B15/00 H04L27/28

    摘要: A method of channel estimation in an OFDM transmission system having a transmitter and a receiver according to standard IEEE 802.11x. The method includes: in the transmitter, setting an identifier in a reserved bits section of the header following the preamble in a physical layer frame; attaching a postamble at the end of said frame without altering the length information in the header; transmitting said frame over the channel, in the receiver, receiving a frame over the channel and checking a reserved bits section in the header of the received frame for the presence of the identifier; and if the identifier is detected, using the postamble and the preamble of the received frame to estimate the channel.

    摘要翻译: 一种具有根据标准IEEE 802.11x的发射机和接收机的OFDM传输系统中的信道估计方法。 该方法包括:在发射机中,在物理层帧中的前同步码之后的标题的保留比特部分中设置标识符; 在所述帧的末尾附加后同步码,而不改变报头中的长度信息; 在所述接收机中通过所述信道发送所述帧,在所述信道上接收帧,并且检查所述接收帧的报头中的保留位部分以存在所述标识符; 并且如果检测到标识符,则使用后同步码和所接收的帧的前导码来估计信道。