Title:
WIRELESS COMMUNICATION SYSTEM, WIRELESS CONTROL METHOD, AND WIRELESS BASE STATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/186609
Kind Code:
A1
Abstract:
A wireless communication system according to an embodiment of the present invention is provided with: a wireless base station device that carries out wireless communication based on an OFDM scheme; a plurality of dynamic control relay devices that are capable of dynamically controlling the re-radiation direction of an incoming wave; and a wireless terminal device that carriers out wireless communication with the wireless base station device. The wireless base station devices carries out wireless communication with the wireless terminal device by using a plurality of propagation paths via or not via the dynamic control relay devices. A CP control unit provided in the wireless base station device changes a cyclic prefix length in accordance with whether the dynamic control relay devices are used for the propagation paths from the wireless base station device to the wireless terminal device.
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Inventors:
IWABUCHI MASASHI (JP)
OGAWA TOMOAKI (JP)
MURAKAMI TOMOKI (JP)
OGAWA TOMOAKI (JP)
MURAKAMI TOMOKI (JP)
Application Number:
PCT/JP2020/011947
Publication Date:
September 23, 2021
Filing Date:
March 18, 2020
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04W72/04; H04W16/26
Foreign References:
| JP2015510338A | 2015-04-02 |
Other References:
SUGIHARA, YUICHIRO ET AL.: "Study of Cellular Network that Uses Millimetric Wave Massive Relay MIMO", PROCEEDINGS OF 2019 IEICE SOCIETY CONFERENCE, 13 September 2019 (2019-09-13)
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
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