WIRELESS COMMUNICATION SYSTEM, WEAK RADIO WAVE COMMUNICATION DEVICE, MOBILE TERMINAL DEVICE, BASE STATION DEVICE, AND PROGRAM

In a communication system environment, access points which transmit/receive information by wireless communication, a mobile terminal which moves in a utilization environment and transmits/receives information by wireless communication, and a wireless tag of a weak radio wave which transmits/receives...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MOHRI TAKAO, SHIOUCHI MASATOSHI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:In a communication system environment, access points which transmit/receive information by wireless communication, a mobile terminal which moves in a utilization environment and transmits/receives information by wireless communication, and a wireless tag of a weak radio wave which transmits/receives information by wireless communication of weak transmission power smaller than the transmission power of the access points and the mobile terminal are disposed. The mobile terminal transmits a special CTS frame including a MAC address, which cannot exist in the utilization environment, and transmission planned time upon communication with the wireless tag. The access points which have received the special CTS frame prohibit transmission operation for the transmission planned time in the frame, and, during that period, the wireless tag transmits position information or the like to the mobile terminal without being interrupted.