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    METHOD AND APPARATUS FOR RECEIVING DATA IN A COMMUNICATION SYSTEM
    5.
    发明申请
    METHOD AND APPARATUS FOR RECEIVING DATA IN A COMMUNICATION SYSTEM 审中-公开
    用于在通信系统中接收数据的方法和装置

    公开(公告)号：US20070297539A1

    公开(公告)日：2007-12-27

    申请号：US11842347

    申请日：2007-08-21

    申请人： Chung-Ryul CHANG ,  Jang-Hoon Yang

    发明人： Chung-Ryul CHANG ,  Jang-Hoon Yang

    IPC分类号： H04L27/06

    CPC分类号： H04L25/067 ,  H04L27/2602 ,  H04L27/2647

    摘要： An apparatus and method for receiving data by a receiver in a communication system are provided. The data reception method includes receiving data from a transmitter over a transmission region including multiple tiles and measuring noise of each of predetermined tiles among the multiple tiles, calculating a total variance of noises of the measured tiles and a variance of tiles according to the measured noises, comparing the calculated total variance with a first threshold, and comparing the variance of each tile with a second threshold, calculating a Log Likelihood Ratio (LLR) using a value according to the comparison result and performing decoding using the calculated LLR. Accordingly, the reception performance is improved by minimizing an influence of noises due to ICI in a communication system having a multi-cell configuration.

    摘要翻译： 提供了一种用于在通信系统中由接收器接收数据的装置和方法。 数据接收方法包括在包括多个瓦片的传输区域上从发射机接收数据，并测量多个瓦片中每个预定瓦片的噪声，根据测量的噪声计算测量瓦片的噪声的总方差和瓦片的方差 将计算的总方差与第一阈值进行比较，并将每个瓦片的方差与第二阈值进行比较，使用根据比较结果的值计算对数似然比（LLR），并使用所计算的LLR进行解码。 因此，通过最小化具有多小区配置的通信系统中由ICI引起的噪声的影响来提高接收性能。

    RECEIVER AND METHOD FOR DETECTING FREQUENCY AND TIMING OFFSETS IN MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) SYSTEM
    6.
    发明申请
    RECEIVER AND METHOD FOR DETECTING FREQUENCY AND TIMING OFFSETS IN MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) SYSTEM 审中-公开
    用于检测多输入多输出（MIMO）系统中频率和时序偏移的接收机和方法

    公开(公告)号：US20080031309A1

    公开(公告)日：2008-02-07

    申请号：US11833627

    申请日：2007-08-03

    申请人： Chung-Ryul CHANG ,  Jang-Hoon Yang

    发明人： Chung-Ryul CHANG ,  Jang-Hoon Yang

    IPC分类号： H04B1/06 ,  H04B1/713

    CPC分类号： H04L27/2657 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0232 ,  H04L27/2655 ,  H04L27/2695

    摘要： Frequency and timing offsets compensation in a Multiple Input Multiple Output (MIMO) system are provided. A receiver includes one or more antennas for receiving one or more signals using the same radio resource; a channel estimator for estimating a channel using the received signals; a transmit signal candidate pre-compensator for compensating a frequency offset and a timing offset of transmit signal candidates by estimating a frequency offset and a timing offset of one or more transmit antennas; and a demodulator for demodulating the received signals using the estimated channel information and the transmit signal candidates of the compensated frequency and timing offsets. The service coverage of the cellular system can be expanded and the transmit power of the terminal can be saved by enhancing the demodulation performance by compensating for the offset influence of each transmitter.

    摘要翻译： 提供了多输入多输出（MIMO）系统中的频率和定时偏移补偿。 接收机包括一个或多个天线，用于使用相同的无线电资源来接收一个或多个信号; 用于使用所接收的信号估计信道的信道估计器; 用于通过估计一个或多个发射天线的频率偏移和定时偏移来补偿发射信号候选的频率偏移和定时偏移的发射信号候补预补偿器; 以及解调器，用于使用估计的信道信息和补偿的频率和定时偏移的发送信号候选来解调接收的信号。 可以扩展蜂窝系统的业务覆盖，并通过补偿每个发射机的偏移影响来提高解调性能，可以节省终端的发射功率。

    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIGNAL IN A MOBILE COMMUNICATION SYSTEM
    7.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SIGNAL IN A MOBILE COMMUNICATION SYSTEM 审中-公开
    用于在移动通信系统中发送和接收信号的装置和方法

    公开(公告)号：US20120039172A1

    公开(公告)日：2012-02-16

    申请号：US13206886

    申请日：2011-08-10

    申请人： Eun-Yong KIM ,  June MOON ,  Chung-Ryul CHANG ,  Young-Ky KIM ,  Eun-Seok KO

    发明人： Eun-Yong KIM ,  June MOON ,  Chung-Ryul CHANG ,  Young-Ky KIM ,  Eun-Seok KO

    IPC分类号： H04W28/08

    CPC分类号： H04W28/08 ,  H04W88/085

    摘要： Apparatuses and methods for transmitting and receiving signals in a mobile communication system are provided. A method for transmitting a signal by an evolved Node B (eNB) in a mobile communication system includes transmitting a same control channel signal to each of a plurality of Radio Units (RUs), and transmitting a different data channel signal to each of the plurality of RUs. A data channel signal transmitted to each of the plurality of RUs may be determined taking into account at least one of a location of a User Equipment (UE) that will receive the data channel signal, and load balancing.

    摘要翻译： 提供了一种用于在移动通信系统中发送和接收信号的装置和方法。 一种用于在移动通信系统中由演进节点B（eNB）发送信号的方法包括向多个无线单元（RU）中的每一个传输相同的控制信道信号，并向多个无线单元（RU）中的每一个发送不同的数据信道信号 的RU。 可以考虑到将接收数据信道信号的用户设备（UE）的位置和负载平衡中的至少一个来确定发送到多个RU中的每一个的数据信道信号。

    METHOD FOR ESTIMATING CARRIER-TO-NOISE RATIO AND BASE STATION APPARATUS USING THE SAME IN A WIRELESS ACCESS SYSTEM
    8.
    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。