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    METHOD FOR ESTIMATING CARRIER-TO-NOISE RATIO AND BASE STATION APPARATUS USING THE SAME IN A WIRELESS ACCESS SYSTEM
    1.
    发明申请
    METHOD FOR ESTIMATING CARRIER-TO-NOISE RATIO AND BASE STATION APPARATUS USING THE SAME IN A WIRELESS ACCESS SYSTEM 有权
    在无线接入系统中使用该方法估计载波噪声比和基站设备的方法

    公开(公告)号：US20110170442A1

    公开(公告)日：2011-07-14

    申请号：US13004318

    申请日：2011-01-11

    申请人： Hyon-Seung LEE ,  Byoung-Ha Yi ,  Ki-Young HAN ,  Chung-Ryul CHANG

    发明人： Hyon-Seung LEE ,  Byoung-Ha Yi ,  Ki-Young HAN ,  Chung-Ryul CHANG

    IPC分类号： H04W24/00

    CPC分类号： H04L27/2671 ,  H04B17/26 ,  H04B17/318 ,  H04B17/327 ,  H04B17/336 ,  H04B17/345 ,  H04L27/2665 ,  H04L27/2675

    摘要： A method and an apparatus for estimating a Carrier-to-Noise Ratio (CNR) at a Base Station (BS) in a wireless access system are provided. In the method, a preamble signal received from at least one neighbor BS is converted to a frequency response of a preamble sequence and Inverse Fast Fourier Transform (IFFT)-processing the preamble signal, an estimation period of the IFFT-processed preamble signal, corresponding to a Fast Fourier Transform (FFT) size, is divided into a predetermined number of blocks, carrier power values of the blocks are accumulated for a predetermined number of frames, an average of timing offsets of the frames corresponding to a position of a block having a maximum average of accumulated carrier values is determined to be a timing offset of the preamble signal, a carrier power value of the preamble signal is calculated using the timing offset, and a CNR of the preamble signal is estimated using the carrier power value.

    摘要翻译： 提供了一种用于估计无线接入系统中的基站（BS）的载波噪声比（CNR）的方法和装置。 在该方法中，从至少一个相邻BS接收到的前同步码信号被转换为前导码序列的频率响应，前导码信号的快速傅立叶逆变换（IFFT）处理，IFFT处理的前同步信号的估计周期对应 到快速傅立叶变换（FFT）大小被划分为预定数量的块，对于预定数量的帧累积块的载波功率值，对应于具有块的块的位置的帧的定时偏移的平均值， 累积载波值的最大平均值被确定为前导码信号的定时偏移，使用定时偏移来计算前导信号的载波功率值，并且使用载波功率值来估计前导信号的CNR。

    Method for estimating carrier-to-noise ratio and base station apparatus using the same in a wireless access system
    2.
    发明授权
    Method for estimating carrier-to-noise ratio and base station apparatus using the same in a wireless access system 有权
    用于在无线接入系统中估计载波噪声比的方法和使用其的基站装置

    公开(公告)号：US08514737B2

    公开(公告)日：2013-08-20

    申请号：US13004318

    申请日：2011-01-11

    申请人： Hyon-Seung Lee ,  Byoung-Ha Yi ,  Ki-Young Han ,  Chung-Ryul Chang

    发明人： Hyon-Seung Lee ,  Byoung-Ha Yi ,  Ki-Young Han ,  Chung-Ryul Chang

    IPC分类号： H04L12/26 ,  H04B3/46

    CPC分类号： H04L27/2671 ,  H04B17/26 ,  H04B17/318 ,  H04B17/327 ,  H04B17/336 ,  H04B17/345 ,  H04L27/2665 ,  H04L27/2675

    摘要： A method and an apparatus for estimating a Carrier-to-Noise Ratio (CNR) at a Base Station (BS) in a wireless access system are provided. In the method, a preamble signal received from at least one neighbor BS is converted to a frequency response of a preamble sequence and Inverse Fast Fourier Transform (IFFT)-processing the preamble signal, an estimation period of the IFFT-processed preamble signal, corresponding to a Fast Fourier Transform (FFT) size, is divided into a predetermined number of blocks, carrier power values of the blocks are accumulated for a predetermined number of frames, an average of timing offsets of the frames corresponding to a position of a block having a maximum average of accumulated carrier values is determined to be a timing offset of the preamble signal, a carrier power value of the preamble signal is calculated using the timing offset, and a CNR of the preamble signal is estimated using the carrier power value.

    摘要翻译： 提供了一种用于估计无线接入系统中的基站（BS）的载波噪声比（CNR）的方法和装置。 在该方法中，将从至少一个相邻BS接收到的前同步码信号转换为前导码序列的频率响应，以及IFFT处理的前同步信号的估计周期对应于快速傅立叶逆变换（IFFT）处理前导码信号 到快速傅立叶变换（FFT）大小被划分为预定数量的块，对于预定数量的帧累积块的载波功率值，对应于具有块的块的位置的帧的定时偏移的平均值， 累积载波值的最大平均值被确定为前导码信号的定时偏移，使用定时偏移来计算前导信号的载波功率值，并且使用载波功率值来估计前导信号的CNR。