Method for Nomadic Node, NN, activating in a wireless communication network, comprising: receiving, by the NN , an indication message from a NN Control Unit, NCU to indicate the activation of the NN node; performing, by the NN, activation to service at least one Mobile Terminal, MT , which has a link quality above a preset threshold, wherein the activating comprises: - the NN is activated from an idle mode into an activated mode, said idle mode being a mode in which the NN is not registered to NN control means and not prepared to actively serve a mobile terminal in said wireless communication network; or - the NN is activated from a candidate mode into an activated mode, said activated mode being a mode in which the NN is prepared to actively serve a mobile terminal in said wireless communication network and said candidate mode being a mode in which the NN is registered to said NN control means as a potential NN and not prepared to actively serve a mobile terminal in said wireless communication network; and wherein said activated mode being a mode in which the NN is prepared to actively serve a mobile terminal in said wireless communication network, wherein receiving the indication message comprises: indicating to the NN, a mirror NN which has the same configuration as the NN, and receiving, by the NN, forwarding rules for data plane, and wherein when the NN, that has been activated, is leaving the target service region, the mirror node enters the activated mode to service the at least one Mobile Terminal in substitute to the activated NN. receiving, by the NN , an indication message from a NN Control Unit, NCU to indicate the activation of the NN node; performing, by the NN, activation to service at least one Mobile Terminal, MT , which has a link quality above a preset threshold, wherein the activating comprises: - the NN is activated from an idle mode into an activated mode, said idle mode being a mode in which the NN is not registered to NN control means and not prepared to actively serve a mobile terminal in said wireless communication network; or - the NN is activated from a candidate mode into an activated mode, said activated mode being a mode in which the NN is prepared to actively serve a mobile terminal in said wireless communication network and said candidate mode being a mode in which the NN is registered to said NN control means as a potential NN and not prepared to actively serve a mobile terminal in said wireless communication network; - the NN is activated from an idle mode into an activated mode, said idle mode being a mode in which the NN is not registered to NN control means and not prepared to actively serve a mobile terminal in said wireless communication network; or - the NN is activated from a candidate mode into an activated mode, said activated mode being a mode in which the NN is prepared to actively serve a mobile terminal in said wireless communication network and said candidate mode being a mode in which the NN is registered to said NN control means as a potential NN and not prepared to actively serve a mobile terminal in said wireless communication network; and wherein said activated mode being a mode in which the NN is prepared to actively serve a mobile terminal in said wireless communication network, wherein receiving the indication message comprises: indicating to the NN, a mirror NN which has the same configuration as the NN, and receiving, by the NN, forwarding rules for data plane, and wherein when the NN, that has been activated, is leaving the target service region, the mirror node enters the activated mode to service the at least one Mobile Terminal in substitute to the activated NN. <EOS>