Signaling processing method for mirror node, mirror node and system

The embodiment of the invention provides a signaling processing method for a mirror node, the mirror node and a system, and relates to the field of communication. The memory space of the mirror node can be reasonably utilized. The signaling processing method for the mirror node comprises the following steps of receiving a first message from a dormant terminal by using the mirror node, wherein the first message is used for indicating that the dormant terminal is dormant; acquiring a second message from another node, wherein the second message is transmitted to the dormant terminal through the mirror node by the another node, and comprises or does not comprise time limit information; if the dormant terminal is determined to be dormant, and the second message comprises the time limit information, processing the second message according to preset rules. The embodiment of the invention is used for the signaling processing of the dormant terminal.