| 摘要 |
PROBLEM TO BE SOLVED: To reduce power consumption in a receiver even if a communication speed between a transmitter and a repeater is lower than a communication speed between the repeater and the receiver.SOLUTION: A receiver 400, when a session is established between with a transmitter 200, shifts from a normal state to a power saving state. A repeater 300 stores data transmitted from the transmitter 200 into a buffer, and obtains transfer start timing of the data stored in the buffer that can make data transfer completion timing from the transmitter 200 to the repeater 300 coincident with data transfer completion timing from the repeater 300 to the receiver 400. At the transfer start timing, the repeater 300 shifts the state of the receiver 400 from the power saving state to the normal state, and starts data transfer processing stored in the buffer. |
