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    • 141. 发明授权
    • 하향링크 프레임 생성 방법 및 셀 탐색 방법
    • 一种生成DL帧的方法和一种小区搜索方法
    • KR100918501B1
    • 2009-09-24
    • KR1020080063389
    • 2008-07-01
    • 한국전자통신연구원
    • 장갑석김일규박형근고영조이효석정찬복김영훈방승찬
    • H04L7/02H04L27/26
    • H04W48/16H04B1/70735H04B7/2656H04J11/0069H04L7/043H04L27/2613H04L27/2655H04W56/00H04W72/042H04W72/0446H04W88/08
    • 본 발명은 하향링크 프레임 생성 방법에 관한 것으로 셀 그룹 정보를 나타내는 제1 쇼트 시퀀스 및 제2 쇼트 시퀀스를 생성하고, 상기 제1 동기 신호에 의해 결정되는 제1 스크램블링 시퀀스 및 제2 스크램블링 시퀀스를 생성하고, 상기 제1 쇼트 시퀀스가 속한 그룹-상기 무선 통신 시스템은 복수의 쇼트 시퀀스를 사용하고 상기 복수의 쇼트 시퀀스는 복수의 그룹으로 나뉘어 있음-에 의해 결정되는 제 3 스크램블링 시퀀스를 생성하고, 상기 제1 쇼트 시퀀스는 상기 제1 스크램블링 시퀀스로 스크램블링하고, 상기 제2 쇼트 시퀀스는 상기 제2 스크램블링 시퀀스 및 제3 스크램블링 시퀀스로 스크램블링하고, 상기 스크램블링된 제1 쇼트 시퀀스 및 제2 쇼트 시퀀스를 포함하는 제2 동기 신호를 주파수 영역에 매핑한다.
      동기 채널, 셀 ID, 동기 채널 스크램블링, 셀탐색
    • 本发明产生一个第一短序列和第二短序列指示信息的组的细胞涉及的下行链路帧生成方法,以及生成的第一加扰序列和由所述第一同步信号确定的第二加扰序列 使用无线通信系统包括多个短序列和所述多个被划分成多个组的短序列的 - - 所述第一短序列组生成由确定的第三加扰序列,并且所述第一 短序列是所述第一和与加扰序列加扰所述第二短序列,并且所述第二扰频序列和所述第三加扰用的加扰序列和所述第二同步包括经加扰的第一短序列和所述第二短序列 将信号映射到频域。
    • 143. 发明公开
    • 하향링크 프레임 생성 방법 및 셀 탐색 방법
    • 用于生成下行链路帧的方法,以及用于搜索小区的方法
    • KR1020090009703A
    • 2009-01-23
    • KR1020080063387
    • 2008-07-01
    • 한국전자통신연구원
    • 장갑석김일규박형근고영조이효석정찬복김영훈방승찬
    • H04L7/02H04L27/26
    • H04W48/16H04B1/70735H04B7/2656H04J11/0069H04L7/043H04L27/2613H04L27/2655H04W56/00H04W72/042H04W72/0446H04W88/08
    • A method for generating a downlink frame and a method for searching a cell are provided to improve efficiency of searching the cell by receiving the downlink frame and to level interference between sectors by scrambling a short sequence to a scrambling sequence. A first shot sequence and a second short sequence indicating the cell group information are generated. A first scrambling sequence and a second scrambling sequence decided by a first synchronization sequence are generated(S510). A third scrambling sequence determined by the first shot sequence is generated. The first shot sequence is scrambled to the first scrambling sequence. The second short sequence is scrambled to the second scrambling sequence and the third scrambling sequence(S520). A second synchronization signal including the scrambled first shot sequence and the scrambled second short sequence is mapped in the frequency domain(S530). An OFDM transmission unit receives the frame of the downlink signal and transmits the frame through the transmission antenna(S540).
    • 提供了一种用于生成下行链路帧的方法和用于搜索小区的方法,以通过接收下行链路帧来提高搜索小区的效率,并通过将短序列加扰到加扰序列来对扇区之间的干扰进行等级化。 产生指示单元组信息的第一次序列和第二个短序列。 产生由第一同步序列决定的第一加扰序列和第二加扰序列(S510)。 产生由第一拍摄序列确定的第三加扰序列。 第一个播放序列被加扰到第一个加扰序列。 将第二短序列加扰到第二加扰序列和第三加扰序列(S520)。 在频域中映射包括加扰的第一拍摄序列和加扰的第二短片段的第二同步信号(S530)。 OFDM发送单元接收下行链路信号的帧,并通过发送天线发送帧(S540)。
    • 144. 发明授权
    • 이동통신시스템에서의 하향링크 파일럿 신호 전송 방법 및장치
    • 이동통신시스템에서의하향링크파일럿신호전송방법및장
    • KR100874003B1
    • 2008-12-17
    • KR1020070072179
    • 2007-07-19
    • 한국전자통신연구원
    • 박형근김일규고영조장갑석이효석김영훈방승찬
    • H04J11/00H04L27/26
    • A method and an apparatus for transmitting a downlink pilot signal in a mobile communication system are provided to enable a BS(Base Station) to change a scrambling code allocated to each sector and change an interference sector in each sub frame and randomize interference between the sectors, thereby preventing the continuous deterioration of channel estimation capability generated by the multiple path of the interference sector. A method for transmitting a downlink pilot signal in a mobile communication system comprises the following steps of: generating and transmitting a first downlink pilot signal corresponding to a first sector; generating and transmitting a second downlink pilot signal which corresponds to a second sector and is different from the first downlink pilot signal; and differently generating the first downlink pilot signal and the second downlink pilot signal in each sub frame.
    • 提供了一种用于在移动通信系统中发送下行链路导频信号的方法和设备,以使得BS(基站)能够改变分配给每个扇区的扰码并且改变每个子帧中的干扰扇区并随机化扇区之间的干扰 从而防止了由干扰扇区的多路径产生的信道估计能力的持续恶化。 一种在移动通信系统中发送下行导频信号的方法,包括以下步骤:生成并发送对应于第一扇区的第一下行导频信号; 生成并发送对应于第二扇区并且与所述第一下行导频信号不同的第二下行导频信号; 并在每个子帧中不同地生成第一下行导频信号和第二下行导频信号。
    • 146. 发明公开
    • 이동 통신 시스템의 데이터 전송 방법 및 장치
    • 无线通信系统中数据传输的装置和方法
    • KR1020080082423A
    • 2008-09-11
    • KR1020070091165
    • 2007-09-07
    • 한국전자통신연구원
    • 장갑석고영조이효석김일규박형근김영훈방승찬
    • H04B7/02H04L1/02H04L1/06H04B7/04
    • H04L1/0606H04B7/06H04L1/0668H04L27/2634
    • A data transmission method of a mobile communication system and a device thereof are provided to transmit data to another beam, and to apply a time diversity phase weight value and a space diversity phase weight value to factors of a precoding vector matrix, thereby improving space and time diversity gains. An SFBC(Space-Frequency Block Coding)-OFDM(Orthogonal Frequency Division Multiplexing) encoder encodes data(S310). A precoding vector multiplexer selects two different precoding vectors(S320). A precoder performs a precoding process(S330). A precoded signal matrix is converted into a transmission signal of a time domain through an IFFT(Inverse Fast Fourier Transform) process(S340). The analog transmission signal is converted into an RF(Radio Frequency) to send the converted signal(S350).
    • 提供移动通信系统的数据发送方法及其装置,将数据发送到另一个波束,并将时间分集相位权重值和空间分集相位权重值应用于预编码向量矩阵的因子,从而提高空间和 时间多样性增长。 SFBC(空频块编码)-OFDM(正交频分复用)编码器对数据进行编码(S310)。 预编码矢量复用器选择两个不同的预编码矢量(S320)。 预编码器执行预编码处理(S330)。 通过IFFT(快速傅里叶逆变换)处理将预编码信号矩阵转换成时域的发送信号(S340)。 模拟传输信号被转换成RF(射频)以发送转换的信号(S350)。
    • 147. 发明公开
    • 신호 전송 방법 및 신호 수신 방법
    • 用于发送信号的方法和接收信号的方法
    • KR1020080077899A
    • 2008-08-26
    • KR1020070121320
    • 2007-11-27
    • 한국전자통신연구원
    • 장갑석김일규박형근이효석고영조김영훈방승찬
    • H04B7/26H04B7/02H04L27/00
    • H04B7/0456H04L5/0007H04L27/2605
    • A signal transmitting method and a signal receiving method are provided to demodulate broadcast channel information effectively when an MS(Mobile Station) is located at a sector boundary. A down-converter converts a received downlink signal into a baseband signal and outputs the same(S301). An SCH(Synchronization Channel) BCH(Broadcast Channel) band filter filters an SCH band signal and a BCH band signal from the baseband signal and outputs the same(S303). A cell searching unit checks a home sector and one or more target sectors through the SCH band signal(S305). A guard interval removing unit removes a guard interval such as a CP from the SCH band signal and the BCH band signal(S307). A Fourier transforming unit performs FFT(Fast Fourier Transform) on the guard interval-removed SCH band signal and BCH band signal to generate a plurality of SCH reception symbols and a plurality of BCH reception symbols transmitted in a plurality of subcarriers, and outputs the same(S309). A channel estimating unit checks whether there is a target sector which has been searched by the cell searching unit(S311). If the cell searching unit fails to acquire an ID of a target sector, the channel estimating unit estimates a channel state from the SCH reception symbols of a home sector(S313). A BCH demodulating unit estimates BCH symbols from the BCH reception symbols outputted from the Fourier transforming unit(S315). A BCH decoder performs decoding on the plurality of BCH symbols to generate BCH information(S321).
    • 提供一种信号发送方法和信号接收方法,用于当MS(移动站)位于扇区边界时有效地解调广播信道信息。 下变频器将接收到的下行链路信号转换为基带信号并输出​​(S301)。 SCH(同步信道)BCH(广播信道)频带滤波器对来自基带信号的SCH频带信号和BCH频带信号进行滤波并输出(S303)。 小区搜索单元通过SCH频带信号检查归属扇区和一个或多个目标扇区(S305)。 保护间隔去除单元从SCH频带信号和BCH频带信号中去除诸如CP的保护间隔(S307)。 傅立叶变换单元对保护间隔去除的SCH频带信号和BCH频带信号执行FFT(快速傅立叶变换),以产生在多个子载波中发送的多个SCH接收符号和多个BCH接收符号,并输出 (S309)。 信道估计单元检查是否存在由小区搜索单元搜索的目标扇区(S311)。 如果小区搜索单元未能获取目标扇区的ID,则信道估计单元从家庭扇区的SCH接收符号估计信道状态(S313)。 BCH解调单元从从傅里叶变换单元输出的BCH接收符号估计BCH码元(S315)。 BCH解码器对多个BCH符号执行解码以产生BCH信息(S321)。
    • 149. 发明公开
    • 이동통신 시스템에서의 동기 채널 및 방송 채널 전송 방법및 장치
    • 无线通信系统中的同步通道和广播信道传输的附件和方法
    • KR1020080039780A
    • 2008-05-07
    • KR1020070078967
    • 2007-08-07
    • 한국전자통신연구원
    • 장갑석박형근고영조이효석김일규김영훈방승찬
    • H04B7/26H04B7/02H04L27/16H04L1/02
    • H04L27/2626H04B7/0456H04L1/0668H04L5/225H04L25/497H04L27/2695
    • A method and an apparatus for transmitting SCH(Synchronous CHannel) signals and BCH(Broadcast CHannel) signals in a mobile communication system are provided to improve the performance of channel estimation and to increase the efficiency of broadcast channel demodulation by transmitting a plurality of SCH preambles and a plurality of BCH signals through respectively different beams. An SCH preamble and BCH multiplexer multiplexes two SCH preambles and two BCH signals(S310). A precoding vector multiplexer selects precoding vectors to be used for precoding(S320). A precoder executes precoding by multiplying the preambles and the BCH signals by the selected precoding vectors(S330). An IFFT(Inverse Fast Fourier Transformer) converts the precoded SCH preambles in time-domain Tx signals through inverse fast fourier transformation(S340). An RF(Radio Frequency) transmitter converts the analog Tx signals into RF signals and transmits them through an antenna(S350).
    • 提供一种用于在移动通信系统中发送SCH(同步信道)信号和BCH(广播信道)信号的方法和装置,以提高信道估计的性能,并通过发送多个SCH前导码来提高广播信道解调的效率 和多个BCH信号分别通过不同的光束。 SCH前导码和BCH复用器复用两个SCH前导码和两个BCH信号(S310)。 预编码矢量复用器选择要用于预编码的预编码矢量(S320)。 预编码器通过将前同步码和BCH信号乘以所选择的预编码矢量来执行预编码(S330)。 IFFT(快速傅里叶逆变换器)通过反向快速傅立叶变换将时域Tx信号中的预编码的SCH前导码转换(S340)。 RF(射频)发射器将模拟Tx信号转换成RF信号并通过天线发送它们(S350)。
    • 150. 发明公开
    • 신호 전송 방법, 하향링크 프레임 생성 방법 및 신호 수신방법
    • 发送信号的方法,制造下行链路帧的方法和接收信号的方法
    • KR1020080023163A
    • 2008-03-12
    • KR1020070090476
    • 2007-09-06
    • 한국전자통신연구원
    • 장갑석김일규박형근고영조이효석김영훈방승찬
    • H04L27/26H04L1/02H04B7/155H04Q1/30
    • H04L27/2601H04B7/02H04B7/155H04L25/0202H04L25/03866
    • A method for transmitting signals, a method for creating a downlink frame, and a method for receiving signals are provided to improve a decoding performance by coherently decoding a broadcasting channel through presuming a channel by using a synchronization channel. A method for transmitting signals includes a step of applying a plurality of precoding vectors to a plurality of synchronous channel symbols. The precoding vector equal to the synchronous channel symbol is applied to a broadcasting channel symbol adjacent at the synchronous channel symbol. One frame has a plurality of sub-frames. The precoding vector has a different value according to each sub-frame. The precoding vector has a different value according to each sector. A precoding vector group has the precoding vectors. The precoding vector is applied with a different sequence in each sector of the sub-frames. The precoding vector is applied with a different sequence according to a cell.
    • 提供一种用于发送信号的方法,一种用于创建下行链路帧的方法和一种用于接收信号的方法,用于通过使用同步信道预测信道来对广播信道进行相干解码来提高解码性能。 用于发送信号的方法包括将多个预编码向量应用于多个同步信道符号的步骤。 等同于同步信道符号的预编码向量被应用于在同步信道符号附近的广播信道符号。 一帧具有多个子帧。 根据每个子帧,预编码向量具有不同的值。 预编码向量根据每个扇区具有不同的值。 预编码向量组具有预编码向量。 在子帧的每个扇区中以不同的顺序应用预编码向量。 预编码向量根据小区应用不同的序列。