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124 条记录 (耗时 0.041 秒)

    Apparatus and method for generating a preamble sequence in an OFDM communication system
    72.
    发明授权
    Apparatus and method for generating a preamble sequence in an OFDM communication system 有权
    用于在OFDM通信系统中生成前置码序列的装置和方法

    公开(公告)号：US07366090B2

    公开(公告)日：2008-04-29

    申请号：US10819502

    申请日：2004-04-07

    申请人： Chang-Ho Suh ,  Chan-Byoung Chae ,  Ho-Kyu Choi ,  Jung-Min Ro ,  Pan-Yuh Joo

    发明人： Chang-Ho Suh ,  Chan-Byoung Chae ,  Ho-Kyu Choi ,  Jung-Min Ro ,  Pan-Yuh Joo

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2613

    摘要： A method for generating a preamble sequence in an orthogonal frequency division multiplexing (OFDM) communication system having A subcarriers in a frequency domain. The method comprises generating a length-2×M×N preamble sequence, where 2×M×N is less than A, by using a length-N Golay complementary sequence and a length-M Golay complementary sequence; and assigning elements constituting the preamble sequence to 2×M×N subcarriers among the A subcarriers on a one-to-one mapping basis, assigning null data to the remaining subcarriers excluding the 2×M×N subcarriers from the A subcarriers, and then IFFT-transforming the assigned result into time-domain data.

    摘要翻译： 一种用于在频域中具有A个子载波的正交频分复用（OFDM）通信系统中产生前同步码序列的方法。 该方法包括通过使用长度-GGayay互补序列和长度-MGolay互补序列来生成2xMxN小于A的长度为2xMxN的前导码序列; 并且在一对一映射的基础上，将构成前同步码序列的元素分配给A×A×N×N个子载波中的2×M×N个子载波，从空载子载波分配空余数据到除了2×M×N个子载波以外的剩余子载波，然后将分配结果IFFT变换为时间 域数据。

    Method and apparatus for transmitting and receiving information about spreading codes used for a packet data channel in a communication system
    74.
    发明授权
    Method and apparatus for transmitting and receiving information about spreading codes used for a packet data channel in a communication system 有权
    用于发送和接收关于在通信系统中用于分组数据信道的扩展码的信息的方法和装置

    公开(公告)号：US07324578B2

    公开(公告)日：2008-01-29

    申请号：US10358906

    申请日：2003-02-05

    申请人： Hwan-Joon Kwon ,  Ho-Kyu Choi ,  Dong-Hee Kim ,  Youn-Sun Kim

    发明人： Hwan-Joon Kwon ,  Ho-Kyu Choi ,  Dong-Hee Kim ,  Youn-Sun Kim

    IPC分类号： H04B1/00 ,  H04B7/216 ,  H04J13/00

    CPC分类号： H04B1/70735 ,  H04B2201/70701

    摘要： A method and apparatus for efficiently transmitting and receiving information about spreading codes used for a packet data-transmitting channel in a spread spectrum communication system. A BS determines Walsh codes for spreading a PDCH and transmits on a PDCCH an index of a last determined Walsh code. Also, if the determined Walsh codes cannot be fully represented by the use of the last Walsh code index only, the BS transmits a Walsh space bitmap indicating the availability of the Walsh codes individually on another PDCCH or a WAICH.

    摘要翻译： 一种用于在扩频通信系统中有效地发送和接收关于用于分组数据传输信道的扩展码的信息的方法和装置。 BS确定用于扩展PDCH的沃尔什码，并在PDCCH上发送最后确定的沃尔什码的索引。 此外，如果所确定的沃尔什码不能仅通过使用最后的沃尔什码索引来完全表示，则BS在另一PDCCH或WAICH上单独发送指示沃尔什码可用性的沃尔什空间位图。

    Apparatus for transmitting/receiving data on packet data control channel in a communication system
    76.
    发明授权
    Apparatus for transmitting/receiving data on packet data control channel in a communication system 有权
    用于在通信系统中的分组数据控制信道上发送/接收数据的装置

    公开(公告)号：US07286501B2

    公开(公告)日：2007-10-23

    申请号：US10289688

    申请日：2002-11-07

    申请人： Hwan-Joon Kwon ,  Ho-Kyu Choi ,  Dong-Hee Kim ,  Youn-Sun Kim

    发明人： Hwan-Joon Kwon ,  Ho-Kyu Choi ,  Dong-Hee Kim ,  Youn-Sun Kim

    IPC分类号： H04B7/216 ,  H04B7/212 ,  H04Q7/00 ,  H04Q7/28

    CPC分类号： H04B7/2637 ,  H04L1/0041 ,  H04L1/0059 ,  H04L1/0061 ,  H04W72/042

    摘要： An apparatus and method for transmitting/receiving a PDCCH (Packet Data Control Channel) for efficient packet data transmission in a communication system supporting packet data service. To allow both TDM-transmission and TDM/CDM-transmission of packet data, PDCCHs having different control information are transmitted. A 1PDCCH and a 2PDCCH are selectively transmitted according to the channel environments of users to thereby minimize the transmission power of the 1PDCCH and the 2PDCCH. A PDCCH receiver receives the 1PDCCH and the 2PDCCH using Walsh functions assigned to them, demodulates them, and checks errors in them, thereby obtaining control information about packet data to be received.

    摘要翻译： 一种用于在支持分组数据服务的通信系统中发送/接收用于有效分组数据传输的PDCCH（分组数据控制信道）的装置和方法。 为了允许分组数据的TDM传输和TDM / CDM传输，发送具有不同控制信息的PDCCH。 根据用户的信道环境选择性地发送1PDCCH和2PDCCH，从而使1PDCCH和2PDCCH的发送功率最小化。 PDCCH接收机使用分配给它们的沃尔什函数接收1PDCCH和2PDCCH，解调它们，并检查它们中的错误，从而获得关于要接收的分组数据的控制信息。

    Encoding apparatus and method in CDMA communication system
    78.
    发明授权
    Encoding apparatus and method in CDMA communication system 有权
    CDMA通信系统中的编码装置和方法

    公开(公告)号：US07065700B2

    公开(公告)日：2006-06-20

    申请号：US09814311

    申请日：2001-03-21

    申请人： Jae-Yoel Kim ,  Hyun-Woo Lee ,  Soon-Young Yoon ,  Hee-Won Kang ,  Ho-Kyu Choi

    发明人： Jae-Yoel Kim ,  Hyun-Woo Lee ,  Soon-Young Yoon ,  Hee-Won Kang ,  Ho-Kyu Choi

    IPC分类号： H03M13/03

    CPC分类号： H04B1/707 ,  H04J13/10

    摘要： There is provided an encoding apparatus and method in a CDMA communication system. To encode input information of a k-bit sequence and generate a codeword with length N>(2k−1), an encoder encodes the input information using an (r, k) simplex code and generates a sequence of code symbols of length r (r=2k−1), a repeater repeats the sequence of code symbols t times ( t = ⌊ N r ⌋ + 1 ) , and a puncturer performs puncturing A times (A=rt−N) on the t repeated code symbol sequences so that the resulting codes have length N. The punctured symbols are distributed uniformly across the repeated code symbol sequences or confined to the tth repeated code symbol sequence.

    摘要翻译： 提供了一种CDMA通信系统中的编码装置和方法。 为了对k位序列的输入信息进行编码并生成长度为N>（2≤K≤1）的码字，编码器使用（r，k）单码进行编码，并产生 长度为r（r = 2K-1）的码符号序列，中继器重复码元序列t次 （ t = ⌊ N r ⌋ + 1 ） ， 对t个重复码符号序列进行A次打孔（A = rt-N），使得所得到的码具有长度N.穿孔符号均匀地分布在重复的码符号序列上或限于第t / 重复代码符号序列。

      Method for controlling transmission point of a dedicated channel in a CDMA communication system supporting an uplink synchronous transmission scheme
      80.
      发明授权
      Method for controlling transmission point of a dedicated channel in a CDMA communication system supporting an uplink synchronous transmission scheme 有权
      用于控制支持上行链路同步传输方案的CDMA通信系统中的专用信道的传输点的方法

      公开(公告)号：US06934526B2

      公开(公告)日：2005-08-23

      申请号：US10080992

      申请日：2002-02-21

      申请人： Sung-Ho Choi ,  Hyun-Woo Lee ,  Seong-Il Park ,  Ho-Kyu Choi

      发明人： Sung-Ho Choi ,  Hyun-Woo Lee ,  Seong-Il Park ,  Ho-Kyu Choi

      IPC分类号： H04B7/26 ,  H04Q7/20

      CPC分类号： H04B7/2628

      摘要： Disclosed is provided a method for switching an operation mode from a non-USTS to a USTS mode in a Node B capable of communicating with a UE in both the non-USTS mode and the USTS mode. The Node B calculates a difference value between a start point of a downlink dedicated channel frame in a downlink dedicated channel transmitted to the UE in the non-USTS mode and a start point of an uplink dedicated channel frame in an uplink dedicated channel received from the UE. The Node B determines a first control value for controlling the start point of the uplink dedicated channel frame in the uplink dedicated channel by comparing the difference value with a given reference value, and also determines a second control value such that the second control value for the start point of the downlink dedicated channel frame in the downlink dedicated channel becomes a multiple of a given number of chips. Further, the Node B informs the UE of the determined first and second control values, and then transmits a downlink dedicated channel signal such that the start point of the downlink dedicated channel frame becomes a start point determined based on the second control value.

      摘要翻译： 本发明提供了一种在非USTS模式和USTS模式下，能够在能够与UE通信的节点B中将非USTS操作模式切换到USTS模式的方法。 节点B计算在非USTS模式下发送给UE的下行专用信道中的下行专用信道帧的起始点与从上行专用信道接收的上行专用信道帧的起始点之间的差值 UE。 节点B通过将差值与给定参考值进行比较来确定用于控制上行链路专用信道中的上行链路专用信道帧的起始点的第一控制值，并且还确定第二控制值，使得第二控制值为 下行专用信道中的下行链路专用信道帧的起始点成为给定数量的码片的倍数。 此外，节点B向UE通知所确定的第一和第二控制值，然后发送下行链路专用信道信号，使得下行链路专用信道帧的起点成为基于第二控制值确定的起始点。