The Machine-type services induce one critical challenge for the current cellular networks: The capacity of the conventional signaling channel in the network can hardly support the anticipated massive number of machine-type devices. According to the current network design, the signaling channel can easily be blocked up by a number of simultaneous signaling requests. In order to release the bottleneck of the signaling channel, we proposed a cross-device signaling mechanism to reduce the

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... d signaling data during the congestion-critical period. This mechanism removes the redundancy between the signaling messages of different devices. It has especially high performance when multiple highly synchronized devices generate simultaneous signaling requests. Thus, the mechanism can effectively mitigate the potential congestion in the signaling channel and further increase the design capacity of the network.