Title:
無線通信システム、無線通信装置及び無線通信方法
Document Type and Number:
Japanese Patent JP6659598
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To realize an ultra-high order spatial multiplex transmission while keeping down a range of installation of a radio communication device.SOLUTION: A first radio communication device comprises: a plurality of first directivity-forming signal processing parts having a first antenna element group; and a first signal-separation processing part operable to execute radio communication signal processes associated therewith. A second radio communication device comprises: a plurality of second directivity-forming signal processing parts having a second antenna element group; and a second signal-separation processing part operable to execute radio communication signal processes associated therewith. The first and second directivity-forming signal processing parts have first and second directivity-forming parts respectively. The first and second directivity-forming parts form a transmission directional beam and a reception directional beam based on a MIMO channel matrix corresponding to each combination of first and second antenna element groups. A transmission-weight vector and a reception weight vector for each MIMO channel matrix are based on first right and left singular vectors corresponding to first singular values of the matrix.SELECTED DRAWING: Figure 1
Inventors:
Atsushi Ota
Hiroshi Shirato
Masataka Iizuka
Hiroshi Shirato
Masataka Iizuka
Application Number:
JP2017000623A
Publication Date:
March 04, 2020
Filing Date:
January 05, 2017
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04B7/0413; H01Q3/26; H01Q21/06; H04B7/0456; H04W16/28
Domestic Patent References:
| JP2010183566A | ||||
| JP2015523757A |
Foreign References:
| US20140187168 |
Other References:
太田 厚ほか,第1固有モードの並列伝送を用いた見通し環境ミリ波帯空間多重伝送技術~方式提案と基本特性評価結果~,電子情報通信学会技術研究報告,2015年 8月10日,第115巻,第181号,p.73-78
新井 拓人ほか,第1固有モードのパラレル伝送を用いた見通し環境ミリ波帯空間多重伝送技術~固有ビーム間の直交化条件~,電子情報通信学会2015年通信ソサイエティ大会講演論文集1,2015年 8月25日,p.338
新井 拓人ほか,第1固有モードのパラレル伝送を用いた見通し環境ミリ波帯空間多重伝送技術~固有ビーム間の直交化条件~,電子情報通信学会2015年通信ソサイエティ大会講演論文集1,2015年 8月25日,p.338
Attorney, Agent or Firm:
Shiga International Patent Office