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    Method for allocating subchannels in an OFDMA mobile communication system
    1.
    发明授权
    Method for allocating subchannels in an OFDMA mobile communication system 有权
    在OFDMA移动通信系统中分配子信道的方法

    公开(公告)号：US07411924B2

    公开(公告)日：2008-08-12

    申请号：US10996699

    申请日：2004-11-24

    申请人： Yoon-Ok Cho ,  Yong-Hoon Lee ,  Young-Ho Jung ,  Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Chang-Soo Hwang ,  Seung-Hoon Nam

    发明人： Yoon-Ok Cho ,  Yong-Hoon Lee ,  Young-Ho Jung ,  Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Chang-Soo Hwang ,  Seung-Hoon Nam

    IPC分类号： H04Q7/24

    CPC分类号： H04L5/023 ,  H04L1/0003 ,  H04L1/0015 ,  H04L27/2608

    摘要： An adaptive modulation scheme relating to an RA problem for maximizing the transmission rates of all users for maximum transmission rates in an OFDMA system including some users requiring to use services at fixed data rates. The scheme proposes introduction of an adaptive modulation using linear programming into an existing scheme for a system including a single kind of users, thereby enabling simultaneous execution of the adaptive modulation for all users in a system including two kinds of users. Further, the invention proposes another scheme of sequentially allocating subchannels to the users when the fixed transmission rate has a sufficiently small value, in order to reduce the complexity.

    摘要翻译： 一种与RA问题有关的自适应调制方案，用于在包括一些需要以固定数据速率的业务的用户的OFDMA系统中最大化所有用户的最大传输速率的传输速率。 该方案提出了使用线性规划的自适应调制引入到包括单一用户的系统的现有方案中，从而能够在包括两种用户的系统中为所有用户同时执行自适应调制。 此外，为了降低复杂度，本发明提出了当固定传输速率具有足够小的值时向用户顺序分配子信道的另一方案。

    Pilot designing method in an uplink OFDMA system
    5.
    发明授权
    Pilot designing method in an uplink OFDMA system 有权
    上行OFDMA系统中的导频设计方法

    公开(公告)号：US07710918B2

    公开(公告)日：2010-05-04

    申请号：US11078157

    申请日：2005-03-11

    申请人： Young-Ho Jung ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Seung-Hoon Nam ,  Yong-Hoon Lee ,  Hong-Sun Park

    发明人： Young-Ho Jung ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Seung-Hoon Nam ,  Yong-Hoon Lee ,  Hong-Sun Park

    IPC分类号： H04W4/00

    CPC分类号： H04L5/0048 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0232

    摘要： A pilot designing method in an uplink OFDMA system is provided. In the uplink OFDMA system, communications are carried out in a frame divided into time-frequency lattices, and each time-frequency lattice includes a plurality of data symbol periods and a plurality of pilot symbol periods intermittently arranged with respect to the data symbol periods. The frame is divided into a plurality of blocks. The blocks are allocated to the terminals. A predetermined allocated pilot time-frequency lattice is shared between adjacent terminals.

    摘要翻译： 提供了一种上行链路OFDMA系统中的导频设计方法。 在上行链路OFDMA系统中，以划分为时频格点的帧进行通信，并且每个时间频率格子包括相对于数据符号周期间歇地布置的多个数据符号周期和多个导频符号周期。 该帧被分成多个块。 这些块分配给终端。 在相邻的终端之间共享预定的分配的导频时间频率点阵。

    Method for grouping transmission antennas in mobile communication system including multiple transmission/reception antennas
    7.
    发明授权
    Method for grouping transmission antennas in mobile communication system including multiple transmission/reception antennas 有权
    在包括多个发送/接收天线的移动通信系统中对发送天线进行分组的方法

    公开(公告)号：US07483719B2

    公开(公告)日：2009-01-27

    申请号：US10988947

    申请日：2004-11-15

    申请人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Ho-Jin Kim ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Il-Han Kim

    发明人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Ho-Jin Kim ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Il-Han Kim

    IPC分类号： H04M1/00

    CPC分类号： H04B7/0874 ,  H04B7/0691

    摘要： Disclosed is a method for configuring transmission antenna groups in a mobile communication system with multiple transmission antennas and multiple reception antennas. The method includes the steps of: receiving a first matrix having a size of ‘Nt×Nt’, which corresponds to Nt number of transmission antennas, fedback from the mobile terminal, generating combinations of sub-matrixes of the first matrix corresponding to Nr number of reception antennas, and calculating sums of maximum eigenvalues; determining combinations of the sub-matrixes having a maximum value from among the calculated sums of eigenvalues to be transmission antenna groups for the Nt number of transmission antennas; and transmitting different relevant symbols from each other through the transmission antenna groups.

    摘要翻译： 公开了一种在具有多个发送天线和多个接收天线的移动通信系统中配置发送天线组的方法。 该方法包括以下步骤：从移动终端接收具有大小为NtxNt的第一矩阵，其对应于Nt个发送天线，产生与Nr个接收数相对应的第一矩阵的子矩阵的组合 天线，并计算最大特征值的和; 确定具有最大值的子矩阵的组合，其中所计算的特征值之和作为N t个发射天线的发射天线组; 并通过发射天线组彼此发送不同的相关符号。

    Method for grouping transmission antennas in mobile communication system including multiple transmission/reception antennas
    10.
    发明申请
    Method for grouping transmission antennas in mobile communication system including multiple transmission/reception antennas 有权
    在包括多个发送/接收天线的移动通信系统中对发送天线进行分组的方法

    公开(公告)号：US20050128983A1

    公开(公告)日：2005-06-16

    申请号：US10988947

    申请日：2004-11-15

    申请人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Ho-Jin Kim ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Il-Han Kim

    发明人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Ho-Jin Kim ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Il-Han Kim

    IPC分类号： H04B7/02 ,  H04B7/06 ,  H04B7/08 ,  H04Q7/00

    CPC分类号： H04B7/0874 ,  H04B7/0691

    摘要： Disclosed is a method for configuring transmission antenna groups in a mobile communication system with multiple transmission antennas and multiple reception antennas. The method includes the steps of: receiving a first matrix having a size of ‘Nt×Nt’, which corresponds to Nt number of transmission antennas, fedback from the mobile terminal, generating combinations of sub-matrixes of the first matrix corresponding to Nr number of reception antennas, and calculating sums of maximum eigenvalues; determining combinations of the sub-matrixes having a maximum value from among the calculated sums of eigenvalues to be transmission antenna groups for the Nt number of transmission antennas; and transmitting different relevant symbols from each other through the transmission antenna groups.

    摘要翻译： 公开了一种在具有多个发送天线和多个接收天线的移动通信系统中配置发送天线组的方法。 该方法包括以下步骤：接收一个大小为N N T N T N T N T N T N T N T N T N T N T N T N 发送天线，从移动终端反馈，生成与第N个接收天线数相对应的第一矩阵的子矩阵的组合，以及计算最大特征值的和; 确定具有最大值的子矩阵的组合，其中所计算的特征值之和成为发送天线的N T个数量的发送天线组; 并通过发射天线组彼此发送不同的相关符号。