The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2025
Filed:
Jun. 05, 2020
Ntt, Inc., Tokyo, JP;
Daisuke Goto, Musashino, JP;
Kiyohiko Itokawa, Musashino, JP;
Yasuyoshi Kojima, Musashino, JP;
Fumihiro Yamashita, Musashino, JP;
NTT, Inc., Tokyo, JP;
Abstract
In a wireless communication system in which a relay device provided on a mobile object communicates wirelessly with a plurality of communication devices present in places different from each other, each of the communication devices includes a communication device transmission unit which transmits test signals at a plurality of timings during a time frame when communication with the relay device is possible, a communication device reception unit which receives, from the relay device, communication situation information indicating communication situations at the plurality of timings, and a communication device control unit which controls the communication device transmission unit such that the communication device transmission unit communicates with the relay device at one of the plurality of timings, the communication situation of which is good and which is identified on the basis of the communication situation information, and the relay device includes a relay device reception unit which receives the respective test signals at the plurality of timings, a measurement unit which measures the respective communication situations at the time of reception of the test signals at the plurality of timings, a relay device control unit which generates the communication situation information on the basis of the communication situations, and a relay device transmission unit which transmits the communication situation information to the communication device during a time frame when communication with the communication device is possible.