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:
Apr. 18, 2017
Filed:
Jun. 30, 2014
Nec Platforms, Ltd., Kawasaki-shi, Kanagawa, JP;
Mitsuo Kobayashi, Kanagawa, JP;
NEC Platforms, Ltd., Kawasaki-shi, Kanagawa, JP;
Abstract
A carrier sense unit () of a PHS base station () periodically carrier-senses nearby radio waves and monitors whether radio wave interferences with a communication channel to be used for communication with a PHS terminal () is occurring. A communication channel management unit () ranks communication channels to be used for communication with the PHS terminal () based on a monitoring result by the carrier sense unit (). When a request for acquiring or a request for switching to a communication channel to be used for communication with the PHS terminal () is made, a communication channel switching control unit () preferentially selects and allocates a communication channel ranked high as a communication channel where radio wave interference is not occurring from among usable communication channels ranked and managed by the communication channel management unit ().