Title:
無線通信システム、及び無線通信方法
Document Type and Number:
Japanese Patent JP5634582
Kind Code:
B2
Abstract:
In a wireless communication system including a transmitter device and a receiver device used for signal transmission and reception according to a multicarrier multiplexing transmission method, the transmitter device performs error correction coding on transmitting data so as to generate error-correction coded bits, carries out a first modulation by modulating said error-correction coded bits so as to generate a plurality of modulation symbols, performs block encoding of the plurality of modulation symbols, a part of which becomes zero in amplitude, carries out a second modulation, allocating block-coded modulation symbols to sub-carriers so as to generate modulation signals, thus transmitting signals based on said modulation signals. Said receiver device receives signals transmitted thereto, performs a second demodulation that retrieves modulation symbols, which are subjected to block coding in units of sub-carriers, from received signals, carries out block decoding on block-coded modulation symbols, performs a first demodulation on block-decoded modulation symbols, and carries out error correction decoding unit by use of demodulated values, thus reproducing original data subjected to transmission. Furthermore, the receiver performs a decision that identifies a frequency band of the sub-carriers having zero amplitude in transmitting signals generated by the transmitter based on transmitted data, and detects an interference signal representative of a signal having the frequency band of a sub-carrier having zero amplitude, identified by the decision, among received signals transmitted thereto.
Inventors:
増野 淳
杉山 隆利
杉山 隆利
Application Number:
JP2013197337A
Publication Date:
December 03, 2014
Filing Date:
September 24, 2013
Export Citation:
Assignee:
日本電信電話株式会社
International Classes:
H04J11/00; H04W16/14; H04W72/04
Attorney, Agent or Firm:
Yoshimoto Toyoda
Hiroshi Watabe
Hiroshi Watabe