利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

170 条记录 (耗时 0.029 秒)

    APPARATUS AND METHOD FOR PERFORMING CHANNEL DECODING OPERATION BASED ON EFFECTIVE NOISE IN MOBILE COMMUNICATION SYSTEM
    2.
    发明申请
    APPARATUS AND METHOD FOR PERFORMING CHANNEL DECODING OPERATION BASED ON EFFECTIVE NOISE IN MOBILE COMMUNICATION SYSTEM 有权
    基于移动通信系统中有效噪声进行通道解码操作的装置和方法

    公开(公告)号：US20160211943A1

    公开(公告)日：2016-07-21

    申请号：US15003388

    申请日：2016-01-21

    申请人： Young-Seok Jung ,  Min-Goo Kim ,  In-Hyoung Kim ,  Chae-Hag Yi

    发明人： Young-Seok Jung ,  Min-Goo Kim ,  In-Hyoung Kim ,  Chae-Hag Yi

    IPC分类号： H04L1/00 ,  H04L25/02

    CPC分类号： H04L1/0054 ,  H04L1/0047 ,  H04L25/0202

    摘要： A method and apparatus are provided for performing a channel decoding operation based on effective noise in a mobile communication system. The method includes detecting effective noise including additive noise that occurs in a channel environment between the signal receiving apparatus and a signal transmitting apparatus and channel estimation noise that occurs during a channel estimating operation the signal receiving apparatus; generating a log likelihood ratio (LLR) based on the detected effective noise; and performing channel decoding based on the generated LLR.

    摘要翻译： 提供了一种用于在移动通信系统中基于有效噪声执行信道解码操作的方法和装置。 该方法包括检测在信号接收装置和信号发送装置之间的信道环境中发生的附加噪声和在信道接收装置的信道估计操作期间发生的信道估计噪声的有效噪声; 基于检测到的有效噪声产生对数似然比（LLR）; 并且基于所生成的LLR执行信道解码。

    Apparatus and method for transmitting and receiving a signal in an orthogonal frequency division multiplexing system
    3.
    发明申请
    Apparatus and method for transmitting and receiving a signal in an orthogonal frequency division multiplexing system 审中-公开
    用于在正交频分复用系统中发送和接收信号的装置和方法

    公开(公告)号：US20060018250A1

    公开(公告)日：2006-01-26

    申请号：US11185968

    申请日：2005-07-21

    申请人： Young-Mo Gu ,  Min-Goo Kim ,  Sung-Soo Kim

    发明人： Young-Mo Gu ,  Min-Goo Kim ,  Sung-Soo Kim

    IPC分类号： H04J11/00

    CPC分类号： H04L5/0048 ,  H04L5/006 ,  H04L5/0085 ,  H04L25/0226 ,  H04L25/0244 ,  H04L27/2607

    摘要： A system and method for effectively providing an adaptive modulation scheme and known-cyclic prefix (CP) technology in an orthogonal frequency division multiplexing (OFDM) communication system. An OFDM transmission system variably generates a known CP while considering a channel state. Pilot subcarrier position information for generating the known CP is sent to a transmitter. Pilot subcarriers are selected on the basis of a channel state of an OFDM symbol through which data is transmitted and the known CP is generated, such that data transmission is provided efficiently.

    摘要翻译： 一种用于在正交频分复用（OFDM）通信系统中有效提供自适应调制方案和已知循环前缀（CP）技术的系统和方法。 在考虑信道状态的同时，OFDM传输系统可变地生成已知的CP。 用于产生已知CP的导频副载波位置信息被发送到发射机。 基于通过其发送数据并生成已知CP的OFDM符号的信道状态来选择导频子载波，使得有效地提供数据传输。

    Transmission apparatus and method for a base station using block coding and cyclic delay diversity techniques in an OFDM mobile communication system
    7.
    发明申请
    Transmission apparatus and method for a base station using block coding and cyclic delay diversity techniques in an OFDM mobile communication system 审中-公开
    在OFDM移动通信系统中使用块编码和循环延迟分集技术的基站的发送装置和方法

    公开(公告)号：US20060077886A1

    公开(公告)日：2006-04-13

    申请号：US11246245

    申请日：2005-10-11

    申请人： Hyun-Seok Oh ,  Sang-Hyo Kim ,  Sung-Soo Kim ,  Min-Goo Kim

    发明人： Hyun-Seok Oh ,  Sang-Hyo Kim ,  Sung-Soo Kim ,  Min-Goo Kim

    IPC分类号： H04J11/00

    CPC分类号： H04L1/0668 ,  H04B7/022 ,  H04B7/0667 ,  H04B7/0671 ,  H04B7/0673 ,  H04L1/0606 ,  H04L1/0643 ,  H04L1/0687 ,  H04L25/0222 ,  H04L27/2626

    摘要： An apparatus and method are provided for efficiently supporting transmit diversity for identical broadcast signals transmitted from at least two base stations (BSs). A radio network controller (RNC) considers a radio channel state of a mobile station (MS) and sends information for implementing diversity to a plurality of BSs located in one cell configured by three sectors. Each of the BSs is provided with at least two transmit antennas. The BSs within the cell perform space-time block coding on data to be transmitted according to the information, apply different cyclic delays to the data, and transmit the data to the MS through the at least two transmit antennas.

    摘要翻译： 提供了一种用于有效地支持从至少两个基站（BS）发送的相同广播信号的发射分集的装置和方法。 无线电网络控制器（RNC）考虑移动台（MS）的无线电信道状态，并且发送用于实现分集的信息到位于由三个扇区配置的一个小区中的多个BS。 每个BS设置有至少两个发射天线。 小区内的BS根据该信息对要发送的数据执行空时块编码，对数据应用不同的循环延迟，并通过至少两个发射天线向MS发送数据。

    Channel environment-adapted MMSE reception method and apparatus using multiple receive antennas
    8.
    发明授权
    Channel environment-adapted MMSE reception method and apparatus using multiple receive antennas 有权
    信道环境适应MMSE接收方法和使用多个接收天线的装置

    公开(公告)号：US07933371B2

    公开(公告)日：2011-04-26

    申请号：US11945636

    申请日：2007-11-27

    申请人： Huigiang Zhou ,  Jong-Hun Rhee ,  Min-Goo Kim ,  Sung-Soo Kim

    发明人： Huigiang Zhou ,  Jong-Hun Rhee ,  Min-Goo Kim ,  Sung-Soo Kim

    IPC分类号： H04B7/10

    CPC分类号： H04B7/0854 ,  H04L27/2647

    摘要： Method and Apparatus for controlling combining coefficients of multiple receive antennas according to the channel conditions in a mobile communication system, to improve data restoration performance. A mobile station detects preamble, pilot and data from a signal received from a base station via the multiple receive antennas, measures a channel correlation from the detected preamble, classifies time-domain/frequency-domain intervals having a channel correlation exceeding a predetermined threshold as calculation regions, and calculates MMSE coefficients for the calculation regions. In this way, the mobile station finds the optimal coefficients for combining the signal received via the multiple receive antennas, thereby optimizing the reception performance.

    摘要翻译： 根据移动通信系统中的信道条件控制多个接收天线的组合系数的方法和装置，以提高数据恢复性能。 移动站通过多个接收天线从基站接收到的信号中检测前导码，导频和数据，根据检测到的前导码测量信道相关性，将具有超过预定阈值的信道相关性的时域/频域间隔分类为 计算区域，并计算计算区域的MMSE系数。 以这种方式，移动台找到用于组合经由多个接收天线接收的信号的最佳系数，从而优化接收性能。

    Apparatus and method for hard handover in a wireless communication system
    9.
    发明授权
    Apparatus and method for hard handover in a wireless communication system 有权
    无线通信系统中硬切换的装置和方法

    公开(公告)号：US07860502B2

    公开(公告)日：2010-12-28

    申请号：US11636456

    申请日：2006-12-11

    申请人： Min-Goo Kim ,  Young-Mo Gu ,  Sung-Soo Kim ,  Byung-Sik Kim

    发明人： Min-Goo Kim ,  Young-Mo Gu ,  Sung-Soo Kim ,  Byung-Sik Kim

    IPC分类号： H04W36/00 ,  H04W4/00 ,  H04B7/00

    CPC分类号： H04W36/30 ,  H04B1/7105 ,  H04B2201/70702

    摘要： Provided is a hard handover method in a wireless communication system. The hard handover method includes checking a signal-to-noise ratio (SNR) of a signal received from each of at least one neighboring base station (BS) while in communication with a serving BS, and canceling interference if the SNR of the signal received from each of the at least one neighboring BSs satisfies a select condition; sending a handover request to the serving BS, if a difference between a SNR of the interference-canceled signal and a SNR of the interference signal reaches a handover request threshold; and upon receipt of a handover approval from the serving BS, releasing a communication channel to the serving BS, and connecting a call to a BS that provides an interference signal whose SNR has reached the threshold.

    摘要翻译： 提供了一种在无线通信系统中的硬切换方法。 硬切换方法包括在与服务BS进行通信时检查从至少一个相邻基站（BS）中的每一个接收的信号的信噪比（SNR），以及如果接收到的信号的SNR被消除则消除干扰 从所述至少一个相邻BS中的每一个满足选择条件; 如果所述干扰消除信号的SNR与所述干扰信号的SNR之间的差达到切换请求阈值，则向所述服务BS发送切换请求; 并且在从服务BS接收到切换批准时，向服务BS发布通信信道，并且将呼叫连接到提供SNR达到阈值的干扰信号的BS。

    CHANNEL ENVIRONMENT-ADAPTED MMSE RECEPTION METHOD AND APPARATUS USING MULTIPLE RECEIVE ANTENNAS
    10.
    发明申请
    CHANNEL ENVIRONMENT-ADAPTED MMSE RECEPTION METHOD AND APPARATUS USING MULTIPLE RECEIVE ANTENNAS 有权
    频道环境适应MMSE接收方法和使用多种接收天线的设备

    公开(公告)号：US20080144752A1

    公开(公告)日：2008-06-19

    申请号：US11945636

    申请日：2007-11-27

    申请人： Huigiang Zhou ,  Jong-Hun Rhee ,  Min-Goo Kim ,  Sung-Soo Kim

    发明人： Huigiang Zhou ,  Jong-Hun Rhee ,  Min-Goo Kim ,  Sung-Soo Kim

    IPC分类号： H04B7/10 ,  H04L1/02

    CPC分类号： H04B7/0854 ,  H04L27/2647

    摘要： Method and Apparatus for controlling combining coefficients of multiple receive antennas according to the channel conditions in a mobile communication system, to improve data restoration performance. A mobile station detects preamble, pilot and data from a signal received from a base station via the multiple receive antennas, measures a channel correlation from the detected preamble, classifies time-domain/frequency-domain intervals having a channel correlation exceeding a predetermined threshold as calculation regions, and calculates MMSE coefficients for the calculation regions. In this way, the mobile station finds the optimal coefficients for combining the signal received via the multiple receive antennas, thereby optimizing the reception performance.

    摘要翻译： 根据移动通信系统中的信道条件控制多个接收天线的组合系数的方法和装置，以提高数据恢复性能。 移动站通过多个接收天线从基站接收到的信号中检测前导码，导频和数据，根据检测到的前导码测量信道相关性，将具有超过预定阈值的信道相关性的时域/频域间隔分类为 计算区域，并计算计算区域的MMSE系数。 以这种方式，移动台找到用于组合经由多个接收天线接收的信号的最佳系数，从而优化接收性能。