| 摘要 |
The present invention relates to the technical field of communications. Disclosed in an embodiment of the present invention are a terminal device discovery method, device and system, solving the problem of preamble wasting caused during the search for a second terminal device, and the problem of affecting the channel random access performance of the other terminal devices in an eNodeB. The method comprises: a first terminal device acquires the synchronization signal information of the next one or more cells of the eNodeB that the first terminal device or the second terminal device is in, detects a synchronization signal transmitted by the second terminal device according to the synchronization signal information of the one or more cells, and acquires the strength of the synchronization signal to discover the second terminal device via the synchronization signal, the synchronization signal transmitted by the second terminal device being one of the synchronization signals of the one or more cells. The present invention is applicable to mobile networks. |
