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    • 10. 发明专利
    • Radio communication system and weight calculation method
    • 无线电通信系统和重量计算方法
    • JP2014140151A
    • 2014-07-31
    • JP2013160803
    • 2013-08-01
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社Univ Of Bristolユニバーシティ オブ ブリストルUniversity Of Bristol
    • KUDO RIICHIMIZOGUCHI MASATOSIMON M D ARMOURJOE MCGEEHAN
    • H04J99/00H04B7/04H04J11/00
    • PROBLEM TO BE SOLVED: To reduce overhead on channel estimation which increases with an increase in the number of antennas, in communication using an OFDM modulation system.SOLUTION: In a radio communication system, a communication station estimates a weight channel matrix which is information considering a number Nof channel estimation weights estimated on the basis of received OFDM packets for each frequency channel, and transmits feedback information calculated on the basis of the weight channel matrix to a transmission source communication station having transmitted the OFDM packets. The communication station having transmitted the OFDM packets restores a channel matrix of each frequency channel fed back from the communication target on the basis of the feedback information, makes a plurality of restored channel matrices of frequency channels into one matrix to generate an aggregation matrix whose size is larger than the original channel matrices, and calculates a weight used for communication for each frequency channel on the basis of the generated aggregation matrix and the channel estimation weight.
    • 要解决的问题:为了减少随着天线数量的增加而增加的信道估计的开销,在使用OFDM调制系统的通信中。解决方案:在无线电通信系统中,通信站估计权重信道矩阵,其是考虑到的信息 基于每个频率信道的接收的OFDM分组估计的Nof信道估计权重,并且将发送的OFDM分组的发送源通信站的加权信道矩阵的反馈信息发送出去。 已经发送了OFDM分组的通信站基于反馈信息恢复从通信目标反馈的每个频率信道的信道矩阵,使多个恢复的频道信道矩阵成为一个矩阵,以生成大小 大于原始信道矩阵,并且基于所生成的聚合矩阵和信道估计权重来计算用于每个频率信道的通信权重。