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    • 1. 发明公开
    • 통신 시스템의 송신 장치 및 방법과, 수신 장치 및 방법
    • 发送装置和方法,以及通信系统中的装置和方法
    • KR1020080079163A
    • 2008-08-29
    • KR1020070078964
    • 2007-08-07
    • 한국전자통신연구원삼성전자주식회사
    • 김남일김영훈좌혜경최영민김태중
    • H04L29/08H04L29/10
    • H04L5/0044H03M13/1102H03M13/23H03M13/2707H03M13/2778H03M13/29H03M13/2957H03M13/6356H03M13/6362H03M13/6561H04L1/0057H04L1/0067H04L1/0071
    • A transmission apparatus and method thereof, and a reception apparatus and method thereof in a communication system are provided to reduce a time delay caused by physical channel mapping and data interleaving. A transmission apparatus includes a data interleaver(140), and a channel mapping unit(150). The data interleaver divides data into a plurality of data blocks, and then interleaves each of the divided data blocks. The channel mapping unit maps the interleaved data blocks to a physical channel. The physical channel has a combination of a plurality of symbols within a time domain and a plurality of sub carriers within a frequency domain. The data interleaver has a data divider(142), a plurality of block interleavers(1441~144n) and data concatenating unit(146). The data divider divides the data into the data blocks. The block interleavers interleave the data blocks, respectively. The data concatenating unit concatenates the interleaved data blocks. The interleaving time of a first interleaver among the block interleavers is overlapped with the interleaving time of a second interleaver among the block interleavers.
    • 提供一种传输装置及其方法,以及其在通信系统中的接收装置及其方法,以减少由物理信道映射和数据交织引起的时间延迟。 传输装置包括数据交织器(140)和信道映射单元(150)。 数据交织器将数据划分成多个数据块,然后交织每个划分的数据块。 信道映射单元将交织的数据块映射到物理信道。 物理信道具有时域内的多个符号和频域内的多个子载波的组合。 数据交织器具有数据分割器(142),多个块交织器(1441〜144n)和数据级联单元(146)。 数据分配器将数据分割成数据块。 块交织器分别交织数据块。 数据级联单元连接交织的数据块。 块交织器中的第一交织器的交织时间与块交织器中的第二交织器的交织时间重叠。
    • 7. 发明公开
    • 프리앰블 생성 장치 및 방법, 채널 응답 검출 장치 및 방법
    • 用于生成前缀的装置和方法,用于检测通道响应的装置和方法
    • KR1020090010321A
    • 2009-01-30
    • KR1020070073319
    • 2007-07-23
    • 한국전자통신연구원삼성전자주식회사
    • 최영민좌혜경신은정이문식박형근김영훈
    • H04L27/26H04J11/00
    • H04L27/261H04B1/713H04L27/2628H04W74/0833
    • An apparatus and a method for generating preamble and an apparatus and a method for detecting a channel response are provided to reduce hardware and a processing time by generating the preamble by using an interpolator and detecting the channel response by using a decimator. A sequence generation part generates a frequency sequence including a plurality of factors in a frequency domain(S110). An IDFT operating part performs an IDFT(Inverse Discrete Fourier Transform) of the frequency sequence generated by the sequence generation part and produces the inverse Fourier transform signal(S120). A protective interval insertion part inserts the protective interval into the inverse Fourier transform signal and produces the protective interval insertion signal(S130). An interpolator performs the interpolation of the protective interval insertion signal and produces an RA preamble(S140). The frequency band of the RA preamble which the interpolator produces is positioned in the base band. A frequency hopping part produces frequency hopped RA preamble by moving the RA preamble of the base band to the frequency band to be transmitted(S150). A transmission part transmits the frequency-hopped RA preamble which the frequency hopping part produces to the channel response detecting device through the channel(S160).
    • 提供了一种用于产生前导码的装置和方法,以及用于检测信道响应的装置和方法,以通过使用内插器生成前导码并通过使用抽取器来检测信道响应来减少硬件和处理时间。 序列生成部生成频域中包含多个因子的频率序列(S110)。 IDFT操作部分执行由序列生成部分生成的频率序列的IDFT(离散傅里叶逆变换),并产生傅里叶逆变换信号(S120)。 保护间隔插入部将保护间隔插入到傅里叶逆变换信号中,产生保护间隔插入信号(S130)。 内插器执行保护间隔插入信号的插值并产生RA前导码(S140)。 内插器产生的RA前导码的频带位于基带中。 跳频部分通过将基带的RA前导码移动到要发送的频带来产生跳频的RA前导码(S150)。 发送部通过频道向频道响应检测装置发送跳频部产生的跳频的前导码(S160)。