Title:
WIRELESS COMMUNICATION SYSTEM, PHASE CONTROL REFLECTOR, AND WIRELESS COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/024611
Kind Code:
A1
Abstract:
This phase control reflector reflects a wireless signal from a radio base station or a terminal. The phase control reflector controls the phase of a wireless signal reflected toward the terminal or radio base station, on the basis of propagation channel information HPT between the radio base station and the phase control reflector and propagation channel information HRP between the phase control reflector and the terminal.
Inventors:
TAKAHASHI YUUTA (JP)
ABE JUNICHI (JP)
ABE JUNICHI (JP)
Application Number:
PCT/JP2020/022867
Publication Date:
February 11, 2021
Filing Date:
June 10, 2020
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04B7/0413; H01Q3/46; H04B7/06; H04B7/14; H04W28/18
Other References:
BASAR, ERTUGRUL ET AL.: "Wireless Communications Through Reconfigurable Intelligent Surfaces", ARXIV, 19 July 2019 (2019-07-19), pages 1 - 20, XP011742786, Retrieved from the Internet
CAEKENBERGHE, V. KOEN: "RF MEMS technology for radar sensors", 2009 INTERNATIONAL RADAR CONFERENCE SURVEILLANCE FOR A SAFER WORLD (RADAR 2009, 12 October 2009 (2009-10-12), pages 1 - 6, XP031653000
HOMMA, NAOKI ET AL.: "Manipulating MIMO propagation environment using tunable passive repeater", 2014 ASIA-PACIFIC MICROWAVE CONFERENCE, 4 November 2014 (2014-11-04), pages 504 - 506, XP032750321
HAMMERSTROM, INGMAR ET AL.: "Power Allocation Schemes for Amplify-and-Forward MIMO-OFDM Relay Links", IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol. 6, no. 8, 20 August 2007 (2007-08-20), pages 2798 - 2802, XP011190242, DOI: 10.1109/TWC.2007.06071
CAEKENBERGHE, V. KOEN: "RF MEMS technology for radar sensors", 2009 INTERNATIONAL RADAR CONFERENCE SURVEILLANCE FOR A SAFER WORLD (RADAR 2009, 12 October 2009 (2009-10-12), pages 1 - 6, XP031653000
HOMMA, NAOKI ET AL.: "Manipulating MIMO propagation environment using tunable passive repeater", 2014 ASIA-PACIFIC MICROWAVE CONFERENCE, 4 November 2014 (2014-11-04), pages 504 - 506, XP032750321
HAMMERSTROM, INGMAR ET AL.: "Power Allocation Schemes for Amplify-and-Forward MIMO-OFDM Relay Links", IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol. 6, no. 8, 20 August 2007 (2007-08-20), pages 2798 - 2802, XP011190242, DOI: 10.1109/TWC.2007.06071
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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