| 摘要 |
<p>Disclosed are a channel detection method, and a communication method, terminal and system, which belong to the field of communications. The channel detection method comprises: a first terminal for D2D communication initiating an SRS measurement request to a base station, the SRS measurement request carrying an identifier of a second terminal for D2D communication; receiving a notification message sent by the base station, the notification message carrying parameter information about an SRS signal sent by the second terminal; and measuring the SRS signal according to the parameter information, so as to obtain channel state information about a channel between the first terminal and the second terminal. The communication terminal comprises a sending module, a receiving module, a measurement module and a communication module. By using an SRS signal in an LTE cellular system to perform channel detection, the present invention will not increase the complexity and cost of a UE, and can be well compatible with the LTE cellular system, thereby achieving the unified scheduling and communication of D2D communication and LTE cellular systems.</p> |
