Patent ID: 8185108

Claim:
A multi-mode communication method of multi-mode user equipment (UE) that provides multi-mode communication by control of a multi-mode control entity (MMCE) connected with a plurality of mobile control entities (MCEs), the multi-mode UE accessing a network through the plurality of MCEs, the multi-mode communication method comprising: accessing a first MCE by using a first mode among a plurality of modes for accessing the plurality of MCEs; transmitting a registration request message to the first MCE so that the first MCE requests registration of the multi-mode UE to the MMCE; forwarding a paging request, which is originally transmitted by a second MCE utilizing a second mode of communication in accordance with access state information of the multi-mode UE associated with the first MCE utilizing a first mode of communication; receiving, by said multi-mode UE, said paging request for accessing a second MCE from the first MCE, the paging request being transmitted by the MMCE; analyzing the paging request, putting the first mode in a sleep state and waking up a second mode for accessing the second MCE according to the analysis; and accessing the second MCE by using the second mode in the awake state.