COMMUNICATION METHOD, COMMUNICATION APPARATUS AND COMMUNICATION SYSTEM

Disclosed in the embodiments of the present application are a communication method, a communication apparatus and a communication system, which are used for improving the detection accuracy of detecting a faulty base station. The method in an embodiment of the present application comprises: when needing to detect a faulty network device, a first network device instructing a second network device to send an out-of-synchronization detection sequence on a downlink service channel, and instructing a third network device adjacent to the second network device to detect the out-of-synchronization detection sequence; and when the out-of-synchronization detection sequence is detected, which indicates that the second network device and the third network device are out of synchronization, the first network device determining the faulty network device on the basis of a detection result of the third network device. Selon les modes de réalisation, la présente invention concerne un procédé de communication, un appareil de c