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    DOWNLINK SIGNAL CONFIGURING METHOD AND DEVICE IN MOBILE COMMUNICATION SYSTEM, AND SYNCHRONIZATION AND CELL SEARCHING METHOD AND DEVICE USING THE SAME
    3.
    发明公开
    DOWNLINK SIGNAL CONFIGURING METHOD AND DEVICE IN MOBILE COMMUNICATION SYSTEM, AND SYNCHRONIZATION AND CELL SEARCHING METHOD AND DEVICE USING THE SAME 审中-公开
    方法和设备唐氏方向信号配置一个移动通信系统及方法和设备同步和细胞研究使用相同的

    公开(公告)号：EP1695459A4

    公开(公告)日：2012-07-25

    申请号：EP03774257

    申请日：2003-11-19

    申请人： KOREA ELECTRONICS TELECOMM ,  CHUNG ANG UNIVERSITY

    发明人： KIM KWANG-SOON ,  AHN JAE-YOUNG ,  CHO YONG SOO ,  KIM DONG-HAN

    IPC分类号： H04B7/26 ,  H04L27/26

    CPC分类号： H04J11/0069 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2656 ,  H04L27/2659 ,  H04L27/266 ,  H04L27/2663 ,  H04L27/2665 ,  H04L27/2675 ,  H04L27/2678

    摘要： Disclosed is a downlink signal configuring method and device, and synchronization and cell search method and device using the same in a mobile communication system. A downlink frame has plural symbols into which pilot subcarriers are distributively arranged with respect to time and frequency axes. Initial symbol synchronization and initial frequency synchronization are estimated by using a position at which autocorrelation of a cyclic prefix of a downlink signal and a valid symbol of the downlink is maximized, and cell search and integer-times frequency synchronization are estimated by using pilot subcarriers included in the estimated symbol. Fine symbol synchronization, fine frequency synchronization, and downlink frame synchronization is estimated by using an estimated cell search result. Downlink frequency and time tracking is performed, cell tracking is performed by using a position set of pilot subcarriers inserted into the downlink frame, fine symbol synchronization tracking and fine frequency synchronization tracking are repeated by using the pilot subcarriers to perform the frequency and time tracking of the downlink frame.

    摘要翻译： 本发明公开了配置使用相同的移动通信系统的方法和装置，以及同步和小区搜索的方法和装置的下行链路信号。下行链路帧具有多个符号插入到哪个导频子载波相对于时间轴和频率轴被分散配置。 初始符号同步和初始频率同步是通过使用在下行链路信号和下行链路的有效符号的循环前缀的哪个自相关的位置被最大化估计和小区搜索和整数倍频率同步是通过使用包括导频子载波估计 在估计的符号。 细符号同步，精细频率同步，和下行链路帧同步是通过使用在估计小区搜索结果来估计。 下行链路频率和时间跟踪进行，细胞跟踪执行通过使用位置 - 组插入到下行链路帧的导频子载波，细符号同步跟踪和精细频率同步跟踪是通过使用导频子载波来执行的频率和时间跟踪重复 下行链路帧。

    APPARATUS AND METHOD OF INTER-CELL MACRO-DIVERSITY FOR PROVIDING BROADCAST/ MULTICAST SERVICE USING MULTI-ANTENNA
    7.
    发明公开
    APPARATUS AND METHOD OF INTER-CELL MACRO-DIVERSITY FOR PROVIDING BROADCAST/ MULTICAST SERVICE USING MULTI-ANTENNA 审中-公开
    装置和方法小区间的宏分集提供广播/多播服务中使用多天线

    公开(公告)号：EP1999861A4

    公开(公告)日：2013-08-14

    申请号：EP07715782

    申请日：2007-03-23

    申请人： KOREA ELECTRONICS TELECOMM ,  INDUSTRY ACADEMIC COOPERATION FOUNDATION OF KYUNGHEE UNIVERSITY

    发明人： KWON JAE-KYUN ,  AHN JAE-YOUNG ,  KIM YUN-HEE ,  KANG SUNG-KYO

    IPC分类号： H04B7/02 ,  H04B7/06 ,  H04L1/06

    CPC分类号： H04B7/022 ,  H04B7/0671 ,  H04B7/0697 ,  H04L1/0606 ,  H04L1/0618 ,  H04L2001/0093 ,  Y02D70/12 ,  Y02D70/122 ,  Y02D70/442 ,  Y02D70/444

    摘要： Provided are a macro-diversity transmission apparatus and method for providing a broadcast/multicast service using multiple transmitting antennas in a wireless cellular communication system. The apparatus and method apply spatial multiplexing using multiple antennas within a cell and obtain additional diversity among adjacent cells or base stations. Therefore, the signal-to-interference ratio (SIR) and diversity order of signals received by terminals at cell boundaries can be increased. Consequently, cell coverage for a particular data rate can be increased, and transmission power can be reduced. Here, additional diversity applied among cells or base stations includes a method of changing antennas transmitting the same information among cells and a cyclic delay diversity (CDD) method.

    摘要翻译： 提供的是用于在无线蜂窝通信系统中使用多个发射天线提供广播/多播服务的宏分集传输装置和方法，该装置和方法使用多个天线应用的小区内空间复用和获得相邻小区或碱中附加的分集 站。 因此，信号 - 干扰比（SIR）和在小区边界由终端接收的信号分集阶数可以增加。 因此，对于一个特定的数据率的小区覆盖可被增加，并且能够降低发送功率。 这里，小区或基站之间应用附加的分集包括改变天线发送小区中相同的信息和循环延迟分集（CDD）的方法的方法。