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. 19, 2017
Filed:
May. 14, 2012
Masayuki Miyazaki, Tokyo, JP;
Yasutaka Serizawa, Tokyo, JP;
Makoto Katagishi, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A short-distance radio communication in a steady situation and a long-distance radio communication in an unsteady situation are dynamically switched in a radio communication network, and a steady communication and an unsteady communication are realized through the same radio communication network without affecting the respective communication qualities. A radio communication network system includes radio terminals that enable a multihop communication, and a radio base station. The radio base station and the radio terminals communicate with each other by at least two kinds of transmission radio wave powers. The transmission radio wave power is variably controlled according to a measurement data value by sensors of the radio terminals, or a content of data received by a data communication. Also, respective transmission times of the radio terminals, the radio relay station, and the radio base station are determined, and the transmission times do not change even if the transmission radio wave power changes (refer to FIG.).