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    • 63. 发明申请
    • TRANSMITTING APPARATUS FOR TRANSMITTING IN A MULTI-CARRIER SYSTEM USING MULTIPLE ANTENNAS AND RECEIVING APPARATUS IN THE SAME SYSTEM
    • 用于在多个载波系统中传输的发射装置,使用多个天线和在相同系统中接收装置
    • WO2007066935A3
    • 2008-09-12
    • PCT/KR2006005168
    • 2006-12-04
    • KOREA ELECTRONICS TELECOMMOH JONG-EEKWON DONG-SEUNG
    • OH JONG-EEKWON DONG-SEUNG
    • H04L1/06H04L25/06H04L27/26
    • H04L1/0668H04L1/0625H04L1/0631H04L25/067H04L27/2647H04L2025/03458
    • A transmitting apparatus and receiving apparatus of a multi-carrier system using multiple antennas is proposed. An LCF encoder (202) of the transmitting apparatus performs a liner precoding to input signals to be transmitted to a receiving apparatus using a liner complex matrix considering the number of multiple antennas and the number of subcarriers, and a subcarrier allocator (203) respectively allocates a subcarrier to the signals liner-precoded by the LCF encoder. A transmitter (205) respectively transmits the signals having a subcarrier allocated by the subcarrier allocator through the multiple antennas externally. A subcarrier de-allocator (208) of a receiving apparatus extracts a liner-precoded signal by de-allocating a subcarrier allocated to the received signal. An LCF decoder (209) outputs a bit reliability of the received signal to the liner-precoded signal extracted from the subcarrier de-allocator considering the number m of multiple antennas and the number n of subcarriers. A performance may be improved by using space diversity due to multiple antennas and a frequency diversity due to the OFDMA system and a complexity may be reduced and a hard decision value of a performance similar to the maximum likehood detection may be obtained by using a lattice reduction and a 2-branch Chase decoder.
    • 提出了使用多个天线的多载波系统的发送装置和接收装置。 发送装置的LCF编码器(202)使用考虑多个天线的数量和子载波的数量的线性复数矩阵来执行线路预编码以输入要发送到接收装置的信号,并且子载波分配器(203)分别分配 到由LCF编码器预编码的信号的子载波。 发射机(205)通过外部的多个天线分别发送具有由子载波分配器分配的子载波的信号。 接收装置的子载波去分配器(208)通过对分配给接收信号的子载波进行去分配来提取线路预编码信号。 考虑到多个天线的数量m和子载波数n,LCF解码器(209)将接收到的信号的比特可靠性输出到从子载波去分配器提取的线路预编码信号。 通过使用由于多个天线的空间分集和由于OFDMA系统导致的频率分集,可以提高性能,并且可以减少复杂度,并且可以通过使用晶格减少来获得类似于最大像素检测的性能的硬判决值 和2分支Chase解码器。
    • 70. 发明申请
    • TRANSMITTING APPARATUS FOR TRANSMITTING IN A MULTI-CARRIER SYSTEM USING MULTIPLE ANTENNAS AND RECEIVING APPARATUS IN THE SAME SYSTEM
    • 在多载波系统中使用多个天线发送的发送装置和在同一系统中接收装置
    • WO2007066935A2
    • 2007-06-14
    • PCT/KR2006/005168
    • 2006-12-04
    • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEOH, Jong-EeKWON, Dong-Seung
    • OH, Jong-EeKWON, Dong-Seung
    • H04J1/00H04L1/04H04L1/06H04Q7/20
    • H04L1/0668H04L1/0625H04L1/0631H04L25/067H04L27/2647H04L2025/03458
    • A transmitting apparatus and receiving apparatus of a multi-carrier system using multiple antennas is proposed. An LCF encoder of the transmitting apparatus performs a liner precoding to input signals to be transmitted to a receiving apparatus using a liner complex matrix considering the number of multiple antennas and the number of subcarriers, and a subcarrier allocator resepctevly allocates a subcarrier to the signals liner-precoded by the LCF encoder. A transmitter respectively transmits the signals having a subcarrier allocated by the subcarrier allocator through the multiple antennas externally. A subcarrier de-allocator of a receiving apparatus extracts a liner-precoded signal by de-allocating a subcarrier allocated to the received signal. An LCF decoder outputs a bit reliablitiy of the received signal to the liner-precoded signal extracted from the subcarrier de-allocator considering the number m of multiple antennas and the number n of subcarriers. A performance may be improved by using space diversity due to multiple antennas and a frequency diversity due to the OFDMA system, and a complexity may be reduced and a hard decision value of a performance similar to the maximum likelihood detection may be obtained by using a lattice reduction and a 2-branch Chase decoder.
    • 提出了使用多个天线的多载波系统的发送装置和接收装置。 发送装置的LCF编码器利用考虑了多个天线的数量和子载波的数量的线性复数矩阵来执行线性预编码以输入要发送到接收装置的信号,并且子载波分配器可以将子载波分配到信号线路 由LCF编码器重新编码。 发射机分别通过外部的多个天线发射具有由子载波分配器分配的子载波的信号。 接收装置的子载波去分配器通过对分配给接收信号的子载波进行解除分配来提取线路预编码信号。 考虑到多个天线的数量m和子载波的数量n,LCF解码器将接收信号的可靠性输出到从子载波去分配器提取的线路预编码信号。 通过使用由于多个天线引起的空间分集和由于OFDMA系统导致的频率分集,可以提高性能,并且可以降低复杂度,并且可以通过使用格子获得与最大似然检测类似的性能的硬判决值 还原和2分支Chase解码器。