COMMUNICATION SYSTEM, COMMUNICATION METHOD, RADIO APPARATUS IN COMMUNICATION SYSTEM AND PROGRAM EXECUTED BY TERMINAL DEVICE IN COMMUNICATION SYSTEM

摘要

A terminal device (1) frame-length-modulates an identifier of the radio apparatus (3) to generate a plurality of frames having a plurality of frame lengths, and transmits the generated plurality of frames to an access point (2) over wire or wireless communication. The access point (2) transfers the plurality of frames transmitted by the terminal device (1) to the radio apparatus (3) in the IP or MAC layer. The radio apparatus (3) detects the plurality of frame lengths of the plurality of frames received from the access point (2) and decodes the detected plurality of frame lengths to obtain an identifier. If the obtained identifier matches the identifier of the radio apparatus (3), the radio apparatus (3) transitions to active mode.

主权项

1. A communication system comprising: a terminal device sequentially transmitting, over wire communication or wireless communication, at least one frame having a desired frame length that constitutes an identifier of a radio apparatus to be transitioned from sleep mode to active mode;
a first radio apparatus transferring the at least one frame by sequentially receiving the at least one frame from the terminal device and transmitting at least one radio frame having at least one frame length of the at least one frame that has been received; and a second radio apparatus sequentially receiving the at least one radio frame transferred by the first radio apparatus, detecting the at least one frame length of the at least one radio frame that has been received, and, if an identifier obtained by decoding the at least one frame length that has been detected matches its own identifier, transitioning from sleep mode to active mode.