Patent ID: 8817628
Filing Date: 2014-08-26
Classification: H04W

Abstract:
1. A first wireless device for transmitting a first signal to a second wireless device at one of a first interval and a second interval, the second interval being longer than the first interval, and for receiving a second signal from the second wireless device at the other of the first interval and the second interval, the first wireless device comprising: a first connection establisher which establishes a wireless connection with the second wireless device; a first determinator which determines whether or not to transmit an end-of-transmission notification, wherein the end-of-transmission notification indicates that transmission data to be transmitted to the second wireless device does not exist currently; a first transmitter which transmits to the second wireless device: (i) the first signal through the established wireless connection at the first interval, and (ii) the end-of-transmission notification through the established wireless connection when the first determinator determines that the end-of-transmission notification is to be transmitted; and a first receiver which waits for a change request signal to be sent from the second wireless device through the established wireless connection in response to the transmission of the end-of-transmission notification, wherein the change request signal requests to change a transmission interval of the first wireless device from the first interval to the second interval, wherein after the first receiver receives the change request signal, the first transmitter performs a data transmission to the second wireless device at the second interval, and the first receiver performs a data reception from the second wireless device at the first interval, through the established wireless connection.