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Patent Searching and Data


Title:
WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, WIRELESS BASE STATION, AND REFLECTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/240699
Kind Code:
A1
Abstract:
Communication is performed between a wireless base station and a wireless terminal by way of a reflecting device. The wireless base station transmits a measurement signal, which is a signal for measuring quality of communication between the wireless base station and the wireless terminal, and including a beam ID of a transmission beam. The reflecting device reflects, in a plurality of reflecting directions, the measurement signal which has entered the reflecting device, thereby generating a plurality of reflection measurement signals. Also, the reflecting device modulates the entered measurement signal at the time of reflection, thereby adding information on a reflecting direction ID, which is different for each of the plurality of reflecting directions, to each of the plurality of reflection measurement signals. The wireless terminal demodulates the reflection measurement signal received from the reflecting device, thereby acquiring the reflecting direction ID and the beam ID. Further, the wireless terminal evaluates, on the basis of a reception state of the received reflection measurement signal, the quality of communication for each combination of the beam ID and the reflecting direction ID.

Inventors:
IWABUCHI MASASHI (JP)
OGAWA TOMOAKI (JP)
MURAKAMI TOMOKI (JP)
Application Number:
PCT/JP2020/020991
Publication Date:
December 02, 2021
Filing Date:
May 27, 2020
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B17/309; H04B7/026; H04B7/06; H04B17/40
Foreign References:
JP2011211515A2011-10-20
US20190174337A12019-06-06
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
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