Title:
送信方法、送信装置、受信方法および受信装置
Document Type and Number:
Japanese Patent JP7002022
Kind Code:
B2
Abstract:
To provide a transmission method of simultaneously transmitting a plurality of modulation signals for improving receiving quality under environment in which a direct wave is dominant from a plurality of antennas.SOLUTION: For all data symbols 500_1 to 503_1 ... used for data transmission of modulation signals z1(t) to be transmitted, precoding matrixes are switched so that all of precoding matrixes already used when precoding individual data symbols and precoding matrixes already used when precoding data symbols adjacent to the data symbols in a frequency axis direction and a time axis direction are different from one another; and symbols are precoded to transmit modulation signals on which the data symbols are arranged.SELECTED DRAWING: Figure 5
Inventors:
Yutaka Murakami
Tomohiro Kimura
Mikihiro Ouchi
Tomohiro Kimura
Mikihiro Ouchi
Application Number:
JP2020190126A
Publication Date:
January 20, 2022
Filing Date:
November 16, 2020
Export Citation:
Assignee:
Sun Patent Trust
International Classes:
H04B7/0456; H04B7/06; H04L1/00; H04L27/26
Domestic Patent References:
| JP2011512062A | ||||
| JP2010519794A | ||||
| JP6803576B2 |
Foreign References:
| WO2008156081A1 | ||||
| EP2169846A1 | ||||
| WO2009091307A1 |
Other References:
NTT DoCoMo,Multi-Codebook Pre-coding Scheme for MIMO in E-UTRA Downlink[online], 3GPP TSG-RAN WG1#47bis R1-070094,インターネット,2007年01月10日,pp.1-8
Attorney, Agent or Firm:
Patent Business Corporation Nakajima Intellectual Property Integration Office
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