| 摘要 |
<p>A method, device and system for establishing Device-to-Device (D2D) communication. The method for D2D communication comprises the following steps: a second device detects the time t1" when the test command sent by a first device arrives at the second device, where the test command is sent by the first device at its uplink timing t1'; the second device determines whether the time t1" follows within the period of CP starting from the uplink timing t2' of the second device, if yes, a test response is transmitted to the first device at the uplink timing t2' of the second device, so that the first device transmits a signal at its uplink timing t1' after receiving the test response; the second device receives, at the uplink timing t2' of the second device, the signal sent by the first device. Signal reception error can be effectively avoided in D2D communication by the embodiments of the present invention.</p> |
