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    Decoding apparatus and method of terminal in wireless communication system
    1.
    发明授权
    Decoding apparatus and method of terminal in wireless communication system 有权
    无线通信系统终端解码装置及方法

    公开(公告)号：US08619917B2

    公开(公告)日：2013-12-31

    申请号：US11647948

    申请日：2006-12-29

    申请人： Jae-Hwan Chang ,  Kil-Ho Shin ,  Yun-Sang Park ,  Bong-Gee Song ,  Byung-Tae Kang ,  In-Hyoung Kim

    发明人： Jae-Hwan Chang ,  Kil-Ho Shin ,  Yun-Sang Park ,  Bong-Gee Song ,  Byung-Tae Kang ,  In-Hyoung Kim

    IPC分类号： H04L27/06

    CPC分类号： H04L27/2647 ,  H04L5/023 ,  H04W16/14 ,  H04W24/00 ,  Y02D70/146

    摘要： A decoding apparatus and method of a terminal in a wireless communication system are provided. A carrier to interference and noise ratio (CINR) estimator estimates a CINR value of a received signal, and a controller generates a modulation and coding scheme (MCS) level candidate set satisfying the estimated CINR value and a target packet error rate (PER) based on a look-up table. A decoder switch determines if an MCS level of a burst is included in the MCS level candidate set when the burst having no connection identifier (CID) information exists in a corresponding frame, and determines to decode the corresponding burst if the MCS level of the burst is included in the MCS level candidate set and to discard the burst otherwise.

    摘要翻译： 提供了无线通信系统中终端的解码装置和方法。 载波对干扰和噪声比（CINR）估计器估计接收信号的CINR值，并且控制器产生满足估计CINR值和目标分组错误率（PER）的调制和编码方案（MCS）级别候选集合 在查表上。 当没有连接标识符（CID）信息的脉冲串存在于对应的帧中时，解码器切换器确定在MCS级别候选集中是否包括脉冲串的MCS级别，并且如果突发的MCS级别 被包括在MCS级候选集中，并且否则丢弃该突发。

    Decoding apparatus and method of terminal in wireless communication system
    2.
    发明申请
    Decoding apparatus and method of terminal in wireless communication system 有权
    无线通信系统终端解码装置及方法

    公开(公告)号：US20070153833A1

    公开(公告)日：2007-07-05

    申请号：US11647948

    申请日：2006-12-29

    申请人： Jae-Hwan Chang ,  Kil-Ho Shin ,  Yun-Sang Park ,  Bong-Gee Song ,  Byung-Tae Kang ,  In-Hyoung Kim

    发明人： Jae-Hwan Chang ,  Kil-Ho Shin ,  Yun-Sang Park ,  Bong-Gee Song ,  Byung-Tae Kang ,  In-Hyoung Kim

    IPC分类号： H04J3/18

    CPC分类号： H04L27/2647 ,  H04L5/023 ,  H04W16/14 ,  H04W24/00 ,  Y02D70/146

    摘要： A decoding apparatus and method of a terminal in a wireless communication system are provided. A carrier to interference and noise ratio (CINR) estimator estimates a CINR value of a received signal, and a controller generates a modulation and coding scheme (MCS) level candidate set satisfying the estimated CINR value and a target packet error rate (PER) based on a look-up table. A decoder switch determines if an MCS level of a burst is included in the MCS level candidate set when the burst having no connection identifier (CID) information exists in a corresponding frame, and determines to decode the corresponding burst if the MCS level of the burst is included in the MCS level candidate set and to discard the burst otherwise.

    摘要翻译： 提供了无线通信系统中终端的解码装置和方法。 载波对干扰和噪声比（CINR）估计器估计接收信号的CINR值，并且控制器产生满足估计CINR值和目标分组错误率（PER）的调制和编码方案（MCS）级别候选集合 在查表上。 当没有连接标识符（CID）信息的脉冲串存在于对应的帧中时，解码器切换器确定在MCS级别候选集中是否包括脉冲串的MCS级别，并且如果突发的MCS级别 被包括在MCS级候选集中，并且否则丢弃该突发。

    Apparatus and method for estimating a carrier-to-interference-and-noise ratio in a communication system
    5.
    发明授权
    Apparatus and method for estimating a carrier-to-interference-and-noise ratio in a communication system 有权
    用于估计通信系统中的载波与干扰噪声比的装置和方法

    公开(公告)号：US07590171B2

    公开(公告)日：2009-09-15

    申请号：US11260822

    申请日：2005-10-27

    申请人： Jae-Hwan Chang ,  In-Hyoung Kim ,  Yun-Sang Park ,  Bong-Gee Song

    发明人： Jae-Hwan Chang ,  In-Hyoung Kim ,  Yun-Sang Park ,  Bong-Gee Song

    IPC分类号： H04B3/46 ,  H04B14/08 ,  H04L27/28

    CPC分类号： H04L27/2647 ,  H04B17/336

    摘要： An apparatus and method are provided for estimating a Carrier-to-Interference-and-Noise Ratio (CINR) in a communication system based on Orthogonal Frequency Division Multiplexing (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA). In the communication system, all base stations boost a power level for a preamble or pilot by B dB. Accordingly, a received signal power level and a received interference level are boosted by B dB, but a noise level is not boosted. Transmission power for a preamble or pilot interval is boosted as compared with that for the data interval. After an interference and noise level is estimated from a preamble or pilot, the interference and noise level estimate of the preamble or pilot is corrected by taking into account a boosting level of the preamble or pilot.

    摘要翻译： 提供了一种用于在基于正交频分复用（OFDM）或正交频分多址（OFDMA）的通信系统中估计载波与干扰和噪声比（CINR）的装置和方法。 在通信系统中，所有基站将前导码或导频的功率电平提高B dB。 因此，接收到的信号功率电平和接收到的干扰电平被提高BdB，但噪声电平没有被提升。 与数据间隔相比，用于前导码或导频间隔的传输功率被提升。 在从前置码或导频估计干扰和噪声电平之后，通过考虑前置码或导频的提升电平来校正前导码或导频的干扰和噪声电平估计。

    Apparatus and method for estimating delay spread of multi-path fading channel in wireless communication system
    6.
    发明申请
    Apparatus and method for estimating delay spread of multi-path fading channel in wireless communication system 审中-公开
    用于估计无线通信系统中多路径衰落信道的延迟扩展的装置和方法

    公开(公告)号：US20060067441A1

    公开(公告)日：2006-03-30

    申请号：US11219955

    申请日：2005-09-06

    申请人： Min-Cheol Park ,  In-Hyoung Kim ,  Bong-Gee Song ,  Jae-Hwan Chang

    发明人： Min-Cheol Park ,  In-Hyoung Kim ,  Bong-Gee Song ,  Jae-Hwan Chang

    IPC分类号： H03D1/04 ,  H04K1/10

    CPC分类号： H04L25/0216 ,  H04L27/2647

    摘要： Disclosed are an apparatus and method that can estimate the maximum delay spread by means of simple computation while being robust against SNR (Signal-to-Noise Ratio) variations. A standard deviation value of a noise component is produced from time-domain signal values obtained from a received signal. The time-domain signal values corresponding to preset sampling points are compared with a threshold value designated by the standard deviation value. A delay time of a time index that corresponds to a time-domain signal value equal to or larger than the threshold value and simultaneously is the maximum time index among time indexes respectively corresponding to the sampling points is detected to be a maximum delay spread value.

    摘要翻译： 公开了一种可以通过简单计算来估计最大延迟扩展的装置和方法，同时针对SNR（信噪比）变化是鲁棒的。 根据从接收信号获得的时域信号值产生噪声分量的标准偏差值。 对应于预设采样点的时域信号值与由标准偏差值指定的阈值进行比较。 对应于等于或大于阈值的时域信号值的时间索引的延迟时间，并且同时是分别对应于采样点的时间指标中的最大时间索引被检测为最大延迟扩展值。

    Apparatus and method for estimating a carrier to interference and noise ratio in a communication system
    7.
    发明授权
    Apparatus and method for estimating a carrier to interference and noise ratio in a communication system 有权
    用于估计通信系统中载波与干扰和噪声比的装置和方法

    公开(公告)号：US07580487B2

    公开(公告)日：2009-08-25

    申请号：US11120254

    申请日：2005-05-02

    申请人： Jae-Hwan Chang ,  Yun-Sang Park ,  Bong-Gee Song

    发明人： Jae-Hwan Chang ,  Yun-Sang Park ,  Bong-Gee Song

    IPC分类号： H03D1/04

    CPC分类号： H04B17/336 ,  H04L25/022 ,  H04L25/0224 ,  H04L27/2647

    摘要： An apparatus and a method for estimating a carrier to interference and noise ratio (CINR) in a communication system. The CINR value is precisely estimated by removing the error floor value, which is caused by the inaccurate sliding average window SAW channel estimation value, from the CINR estimation value. Since the CINR value is precisely estimated, performance of the adaptive power control or the adaptive modulation and coding device is improved.

    摘要翻译： 一种用于估计通信系统中的载波与干扰和噪声比（CINR）的装置和方法。 通过从CINR估计值中除去由不准确的滑动平均窗口SAW信道估计值引起的误差平均值来精确地估计CINR值。 由于CINR值被精确估计，所以改善了自适应功率控制或自适应调制编码装置的性能。

    Channel estimation apparatus and method for OFDM/OFDMA receiver
    8.
    发明申请
    Channel estimation apparatus and method for OFDM/OFDMA receiver 审中-公开
    OFDM / OFDMA接收机的信道估计装置和方法

    公开(公告)号：US20050243791A1

    公开(公告)日：2005-11-03

    申请号：US10971491

    申请日：2004-10-22

    申请人： Min-Cheol Park ,  Yun-Sang Park ,  Bong-Gee Song ,  Jae-Hwan Chang

    发明人： Min-Cheol Park ,  Yun-Sang Park ,  Bong-Gee Song ,  Jae-Hwan Chang

    IPC分类号： H04J11/00 ,  H04J1/00 ,  H04L25/02 ,  H04L27/26

    CPC分类号： H04L25/0232

    摘要： A channel estimation apparatus and method for an OFDM/OFDAM receiver. A channel characteristic value, positioned prior to a pilot symbol of a current slot, from among data symbols of the current slot is estimated by a time-domain interpolation method for use with a channel characteristic value of a pilot symbol of a previous slot and a channel characteristic value of the pilot symbol of the current slot. A channel characteristic value next to the pilot symbol of the current slot from among the data symbols of the current slot is estimated by a time-domain extrapolation method for use with the channel characteristic value of the pilot symbol of the previous slot and the channel characteristic value of the pilot symbol of the current slot.

    摘要翻译： 一种用于OFDM / OFDAM接收机的信道估计装置和方法。 通过时域内插方法来估计位于当前时隙的导频符号之前的信道特征值，该时域内插方法与先前时隙的导频符号的信道特征值一起使用，并且 当前时隙的导频符号的信道特征值。 通过与前一时隙的导频符号的信道特征值一起使用的时域外插法和信道特性来估计当前时隙的数据符号中的当前时隙的导频符号之后的信道特征值 当前时隙的导频符号的值。