Title:
送信機、受信機、送信方法、及び、受信方法
Document Type and Number:
Japanese Patent JP7216521
Kind Code:
B2
Abstract:
To provide a transmitter capable of transmitting signals with a transmission method suitable for actual environment.SOLUTION: A transmitter 10A includes: a modulation circuit 11A that is configured to modulate signals by performing mapping of a data string only to four signal points each of which has the phase different by 90 degrees from the neighboring signal points, which are four signal points including at least two signal points in which the amplitudes are different from each other by means of QAM (Quadrature Amplitude Modulation); and a transmission circuit 18A that is configured to allot the data strings which are mapped to the four signal points by means of modulation by the modulation circuit 11A to subcarriers OFDM (Orthogonal Frequency Division Multiplexing) of which are different from each other and transmit the same via radio.SELECTED DRAWING: Figure 21
Inventors:
Peter Clennell
Application Number:
JP2018202800A
Publication Date:
February 01, 2023
Filing Date:
October 29, 2018
Export Citation:
Assignee:
Panasonic Intellectual Property Corporation of America
International Classes:
H04L27/26; H03M13/19; H03M13/27; H04L1/00
Domestic Patent References:
| JP8149055A | ||||
| JP2010041075A | ||||
| JP2008187223A | ||||
| JP2015159386A | ||||
| JP2003179573A | ||||
| JP2000138721A | ||||
| JP11136298A |
Foreign References:
| US20160204902 | ||||
| WO2017051583A1 | ||||
| WO2009148278A2 | ||||
| WO2016158537A1 | ||||
| WO2005006622A1 | ||||
| CN102694624A | ||||
| US20140161209 | ||||
| WO2016001781A1 |
Other References:
Texas Instruments,CCFI Sequences in E-UTRA DL[online],3GPP TSG RAN WG1#49bis R1-073162,インターネット,2007年07月02日
今尾 勝崇ほか,OFDMを用いた信号点配置符号化による周波数利用効率向上に関する基礎検討,電子情報通信学会技術研究報告,2010年11月,第110巻, 第268号,pp.93~96
Ba-Zhong Shen et al.,Low-Density Parity-Check Coded Modulation Using Multiple Signal Maps And Symbol Decoding,2004 IEEE International Conference on Communications,2004年,pp. 420-424
今尾 勝崇ほか,OFDMを用いた信号点配置符号化による周波数利用効率向上に関する基礎検討,電子情報通信学会技術研究報告,2010年11月,第110巻, 第268号,pp.93~96
Ba-Zhong Shen et al.,Low-Density Parity-Check Coded Modulation Using Multiple Signal Maps And Symbol Decoding,2004 IEEE International Conference on Communications,2004年,pp. 420-424
Attorney, Agent or Firm:
Hiroi Arai
Teraya Eisaku
Shinichi Michizaka
Teraya Eisaku
Shinichi Michizaka