利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

87 条记录 (耗时 0.031 秒)

    Pilot designing method in an uplink OFDMA system
    2.
    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。

    Transmission apparatus and method for MIMO system
    5.
    发明申请
    Transmission apparatus and method for MIMO system 有权
    MIMO系统的传输装置和方法

    公开(公告)号：US20060215784A1

    公开(公告)日：2006-09-28

    申请号：US11345717

    申请日：2006-02-02

    申请人： Seung-Hoon Nam ,  Chan-Soo Hwang ,  Jae-Hak Chung ,  Young-Ho Jung ,  Won-II Roh ,  Chan-Byoung Chae

    发明人： Seung-Hoon Nam ,  Chan-Soo Hwang ,  Jae-Hak Chung ,  Young-Ho Jung ,  Won-II Roh ,  Chan-Byoung Chae

    IPC分类号： H04B7/06

    CPC分类号： H04B7/0689 ,  H04B7/0691 ,  H04B7/0871 ,  H04B7/0874 ,  H04L1/0071 ,  H04L1/06

    摘要： A transmitter in a multiple input multiple output (MIMO) communication system is provided. The transmitter includes a multiplexer for multiplexing an input bit stream into a plurality of bit streams, and outputting the bit streams in parallel; a bit-order rearranger for reordering bits constituting the bit streams, which are output from the multiplexer in the same time period, and outputting the reordered bits as reordered bit streams; and a modulator for modulating the parallel reordered bit streams output from the bit-order rearranger according to their associated modulation schemes, and transmitting the modulated symbols via their associated antennas.

    摘要翻译： 提供了一种多输入多输出（MIMO）通信系统中的发射机。 发射机包括多路复用器，用于将输入比特流复用成多个比特流，并且并行地输出比特流; 用于重新排序构成比特流的比特序列重排器，其在同一时间段内从多路复用器输出，并将重新排序的比特输出为重新排序的比特流; 以及调制器，用于根据它们相关联的调制方案来调制从位顺序重排器输出的并行重排序比特流，以及经由其相关天线发送调制符号。

    Differential space-time block coding apparatus with high transmission rate and method thereof
    6.
    发明申请
    Differential space-time block coding apparatus with high transmission rate and method thereof 有权
    具有高传输速率的差分时空块编码装置及其方法

    公开(公告)号：US20060056539A1

    公开(公告)日：2006-03-16

    申请号：US11206563

    申请日：2005-08-18

    申请人： Seung-Hoon Nam ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Young-Ho Jung ,  Vahid Tarokh

    发明人： Seung-Hoon Nam ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Young-Ho Jung ,  Vahid Tarokh

    IPC分类号： H04B7/06

    CPC分类号： H04L1/0668 ,  H04B7/0669 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0662

    摘要： Disclosed is a differential space-time block coding apparatus with a high transmission rate in a wireless communication system employing multiple transmit antennas and a method thereof. The differential space-time block coding method includes the steps of, when elements of a transmission matrix B43v are transmitted in a predetermined block (a vth block) through a predetermined transmit antenna at a predetermined time, modulating a symbol Sv of inputted binary data to a symbol Sv+1, creating a matrix S44v+1 in a block (a (v+1)th block) following the predetermined block by substituting the modulated symbol for the matrix P44, and then, in order to perform a differential encoding function, multiplying the matrix B43v by the matrix S44v+1 so as to calculate a new matrix B43v+1 to be transmitted in the (v+1)th block.

    摘要翻译： 公开了在采用多个发射天线的无线通信系统中具有高传输速率的差分时空块编码装置及其方法。 差分空时块编码方法包括以下步骤：当在预定块（av 0）中发送传输矩阵B V>的元素时， SUP>块）通过预定的发射天线在预定时间，将输入的二进制数据的符号S SUB调制到码元S + V + 1，创建矩阵S < 在块（a（v + 1）块的块（a（v + 1）块）中的SUB> 44 v + 1 然后，为了执行差分编码功能，将矩阵B v 乘以矩阵S 44， 以便计算要在第（v + 1）中发送的新的矩阵B v + 1 SUP> th 块。

    Transmission apparatus and method for MIMO system
    7.
    发明授权
    Transmission apparatus and method for MIMO system 有权
    MIMO系统的传输装置和方法

    公开(公告)号：US08050356B2

    公开(公告)日：2011-11-01

    申请号：US11345717

    申请日：2006-02-02

    申请人： Seung-Hoon Nam ,  Chan-Soo Hwang ,  Jae-Hak Chung ,  Young-Ho Jung ,  Won-Il Roh ,  Chan-Byoung Chae

    发明人： Seung-Hoon Nam ,  Chan-Soo Hwang ,  Jae-Hak Chung ,  Young-Ho Jung ,  Won-Il Roh ,  Chan-Byoung Chae

    IPC分类号： H04L27/00

    CPC分类号： H04B7/0689 ,  H04B7/0691 ,  H04B7/0871 ,  H04B7/0874 ,  H04L1/0071 ,  H04L1/06

    摘要： A transmitter in a multiple input multiple output (MIMO) communication system is provided. The transmitter includes a multiplexer for multiplexing an input bit stream into a plurality of bit streams, and outputting the bit streams in parallel; a bit-order rearranger for reordering bits constituting the bit streams, which are output from the multiplexer in the same time period, and outputting the reordered bits as reordered bit streams; and a modulator for modulating the parallel reordered bit streams output from the bit-order rearranger according to their associated modulation schemes, and transmitting the modulated symbols via their associated antennas.

    摘要翻译： 提供了一种多输入多输出（MIMO）通信系统中的发射机。 发射机包括多路复用器，用于将输入比特流复用成多个比特流，并且并行地输出比特流; 用于重新排序构成比特流的比特序列重排器，其在同一时间段内从多路复用器输出，并将重新排序的比特输出为重新排序的比特流; 以及调制器，用于根据它们相关联的调制方案来调制从位顺序重排器输出的并行重排序比特流，以及经由其相关天线发送调制符号。

    Adaptive subchannel and bit allocation method using partial channel information feedback in an orthogonal frequency division multiple access communication system
    10.
    发明申请
    Adaptive subchannel and bit allocation method using partial channel information feedback in an orthogonal frequency division multiple access communication system 有权
    在正交频分多址通信系统中使用部分信道信息反馈的自适应子信道和比特分配方法

    公开(公告)号：US20060146856A1

    公开(公告)日：2006-07-06

    申请号：US11321546

    申请日：2005-12-29

    申请人： Young-Ho Jung ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Seung-Hoon Nam

    发明人： Young-Ho Jung ,  Jae-Hak Chung ,  Chan-Soo Hwang ,  Seung-Hoon Nam

    IPC分类号： H04L12/28

    CPC分类号： H04L5/0094 ,  H04L1/0017 ,  H04L1/0029 ,  H04L1/0035 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04W24/00 ,  H04W24/10 ,  H04W28/06 ,  H04W72/042 ,  H04W72/0453

    摘要： An adaptive subchannel and bit allocation method in a wireless communication system. A mobile station analyzes channel quality information of a subchannel at a predetermined period and determines a feedback band index with a maximum decision criterion. The mobile station feeds back the determined feedback band index with the maximum decision criterion to a base station. The base station generates band allocation information using the feedback information from the mobile station, and transmits the band allocation information to the mobile station. The mobile station transmits AMC information using the band allocation information received from the base station. The base station estimates a channel using the AMC information transmitted from the mobile station and allocates bits to the allocated band according to the channel estimation result.

    摘要翻译： 一种无线通信系统中的自适应子信道和比特分配方法。 移动台以预定周期分析子信道的信道质量信息，并以最大决策准则确定反馈频带索引。 移动台将确定的具有最大决策准则的反馈频带索引反馈给基站。 基站使用来自移动台的反馈信息生成频带分配信息，并将该频带分配信息发送到移动台。 移动台使用从基站接收到的频带分配信息来发送AMC信息。 基站使用从移动站发送的AMC信息来估计信道，并根据信道估计结果向所分配的频带分配比特。