Mobile communication for supporting multiple simultaneous communications on a single mobile terminal, terminal equipment, network equipment and operating methods therefore

摘要

To provide a mobile communication system having the capability of supporting multiple simultaneous communications on a single mobile terminal device without unnecessary paging operation by the network device there is described a mobile terminal device having a plurality of mobile terminal side call control units cooperating with a mobile terminal side correspondence table for handling of different states of radio channels managed by a mobile terminal side radio channel state management unit (22). Also, in correspondence thereto there is provided a network device (2) having a network side correspondence table (23) indicating the network side control units (11, 12) which correspond to different radio channels. A network side mobile terminal management unit (13) is adapted to determine related network side call control units (11, 12) according to a network side correspondence table (23) and the state of radio channels managed by a network side radio state management unit (24).