Patent ID: 9408148
Filing Date: 2016-08-02
CPC Classification: H04W,Y02D

Claim Text:
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, the first radio apparatus not transmitting any radio signals during both a period before the first radio apparatus transmits the radio frame and a period after the first radio apparatus transmits the radio frame; 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.