System and method for paging off-line state terminals

摘要

A communications terminal is arranged to transmit/receive data to/from a mobile communications network. A mobility manager tracks a location of a communications terminal within the mobile communications network for routing data to or receiving the data from a communications terminal via a radio network part in accordance with context information of the communications terminal, and the mobile communications network includes a virtual mobility manager. The communications terminal is configured to transmit an indication that the communications terminal is entering an off-line state, and the virtual mobility manager, in response to that indication, can store at least part of the context information of the communications terminal, upon a triggering event occurring, to receive a paging message from the virtual mobility manager at the off-line communications terminal, and to establish with mobile communications network a communications bearer, for communicating the data after the communications terminal has moved to an attached state.

主权项

1. A communications terminal for transmitting data to and receiving data from a mobile communications network, the mobile communications network including a radio network part, a core network part and a virtual mobility manager, the radio network part having a plurality of base stations arranged to transmit data to and receive data from the communications terminal via a radio access interface, and the core network part including at least one packet data network gateway arranged to route data to and receive data from the base stations of the radio network part via the core network and a mobility manager arranged to track a location of the communications terminal within the mobile communications network for routing the data to and receiving the data from the communications terminal via the radio network part in accordance with context information of the communications terminal, the communications terminal comprising:
circuitry configured to:
transmit, via at least one of the base stations to the virtual mobility manager, an indication that the communications terminal is entering an off-line state, the virtual mobility manager storing at least part of the context information of the communications terminal in response to the indication;receive a paging message from the virtual mobility manager when the communications terminal is in the off-line state and after occurrence of a triggering event, the paging message indicating that the communications terminal should move to an attached state; andestablish a communications bearer, with the mobile communications network after the communications terminal has moved to the attached state, the communications bearer for communicating data with the mobile communications network.