Apparatus and method for estimating carrier-to-interference and noise ratio in a broadband wireless communication system
    21.
    发明申请
    Apparatus and method for estimating carrier-to-interference and noise ratio in a broadband wireless communication system 有权
    用于估计宽带无线通信系统中的载波与干扰和噪声比的装置和方法

    公开(公告)号:US20070201568A1

    公开(公告)日:2007-08-30

    申请号:US11699218

    申请日:2007-01-29

    IPC分类号: H04K1/10 H04L27/06

    摘要: An apparatus and method for estimating the CINR of an uplink channel in a broadband wireless communication system are provided, in which tiles being subcarrier sets are separated from a feedback signal received on the uplink channel. All symbols included in the tiles of the feedback signal are correlated with each of codewords, the absolute values of the correlations are squared for the each codeword and summed, a codeword with a maximum sum from among the codewords is selected. Received power level and noise power level are calculated using all the symbols included in the tiles of the feedback signal correlated with the codeword with the maximum sum, and the CINR of the uplink channel is estimated using the received power and the noise power levels.

    摘要翻译: 提供一种用于估计宽带无线通信系统中的上行链路信道的CINR的装置和方法,其中作为副载波集的瓦片与在上行链路信道上接收的反馈信号分离。 包括在反馈信号的瓦片中的所有符号与每个码字相关联,相关性的绝对值对于每个码字进行平方并且相加,选择具有来自码字中的最大和的码字。 使用包含在与具有最大和的码字相关的反馈信号的瓦片中的所有符号来计算接收功率电平和噪声功率电平,并且使用接收功率和噪声功率电平来估计上行链路信道的CINR。

    Apparatus and method for detecting feedback information in a wireless communication system
    22.
    发明申请
    Apparatus and method for detecting feedback information in a wireless communication system 有权
    一种用于在无线通信系统中检测反馈信息的装置和方法

    公开(公告)号:US20070070967A1

    公开(公告)日:2007-03-29

    申请号:US11523856

    申请日:2006-09-20

    IPC分类号: H04B7/216

    CPC分类号: H04L27/2647

    摘要: An apparatus and method for determining feedback information detection in a broadband wireless communication system are provided. In the detection determining apparatus, a demodulator correlates each of tiles carrying received feedback information with an orthogonal vector including a pilot symbol in each possible codeword, each tile being a predetermined number of subcarriers, and calculates the squares of the absolute values of the correlations. A codeword correlation calculator sums the squares of the absolute value of the correlations of the tiles for each possible codeword. A detection decider determines whether to perform detection on the feedback information based on the maximum of the sums.

    摘要翻译: 提供了一种用于在宽带无线通信系统中确定反馈信息检测的装置和方法。 在检测判定装置中,解调器将携带接收反馈信息的每个瓦片与包括每个可能码字中的导频符号的正交矢量相关联,每个瓦片是预定数量的子载波,并且计算相关绝对值的平方。 码字相关计算器将每个可能码字的瓦片的相关性的绝对值的平方相加。 检测判定器基于总和的最大值确定是否对反馈信息进行检测。