RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION TERMINAL DEVICE

PROBLEM TO BE SOLVED: To provide a radio communication system and a radio communication terminal device that can easily avoid congestion of communication not only between a base station and a sensor node, but also between sensor nodes. SOLUTION: The radio communication terminal device includes a rad...

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Bibliographic Details
Main Authors HAYAKAWA MIKI, MORIWAKI NORIHIKO, WAKIZAKA YOSHIHIRO, OKUBO MICHIO
Format Patent
LanguageEnglish
Published 03.07.2008
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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Summary:PROBLEM TO BE SOLVED: To provide a radio communication system and a radio communication terminal device that can easily avoid congestion of communication not only between a base station and a sensor node, but also between sensor nodes. SOLUTION: The radio communication terminal device includes a radio transmission/reception unit for communication with the base station, an infrared transmission/reception unit for communication with other radio terminals, a congestion control unit which detects whether radio communication is in a state wherein no collision is caused, and a communication control unit which performs radio communication with the base station by the radio transmission/reception unit after the congestion control unit detects a free state of a radio channel, and transmits identifier information to other radio terminals by the infrared transmission/reception unit when the radio communication with the base station ends. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20060337461