Patent ID: 8879423
Filing Date: 2014-11-04
Classification: H04W

Abstract:
1. A method for realizing handoff by replicating topology in a media gate-way (MGW), comprising: receiving an ADD Command from a mobile switching center emulation, adding a new Termination to a Context, and establishing a bearer to a target office or a target base station; receiving a MODIFY Command from the mobile switching center emulation, and modifying properties of the new Termination; and receiving a SUBTRACT Command from the mobile switching center emulation, removing an original Termination, playing the Tone of the original Termination to the new Termination according to a recorded playing tone logic, and establishing the same topology connection between the new Termination and other Terminations in the Context as the topology connection between the original Termination and the other Terminations by making the new Termination topologically connect the other Terminations according to a recorded topology connection relation, so as to complete the topology replication from the original Termination to the new Termination, wherein, the recorded playing tone logic and the recorded topology connection relation have been recorded in the MGW according to information about the new Termination and the flag for playing tone relay and replicating topology carried by a Handover Package in one of the ADD Command, the MODIFY Command and the SUBTRACT Command.