Call handover method, call handover device, media gateway and base station controller

A technology of a base station controller and a media gateway, which is applied in the processing method and the corresponding device and system, call switching, and establishment fields, can solve the problems of call failure and TDM endpoint mismatch, and achieves the goal of avoiding call failure and improving call success rate. Effect
CN102404813BInactive Publication Date: 2013-11-06HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2013-11-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The embodiment of the invention discloses a call handover method, a call handover device, a media gateway and a base station controller. The call handover method comprises the following steps of: sending a terminal-increasing request message to the media gateway, wherein the terminal-increasing request message carries TDM (Time Division Multiple) type terminal information, coded information corresponding to a TDM type, IP (Internet Protocol) type terminal information, and coded information corresponding to an IP type; receiving a terminal-increasing response message which indicates that the media gateway successfully establishes a TDM terminal and an IP terminal, and sending a handover request message to a target base station controller, wherein the handover request message carries a circuit identification code cell and the IP type terminal information; and receiving a handover request acknowledge message returned from the target base station controller, wherein the handover request acknowledge message carries the TDM type terminal information or the IP type terminal information. The embodiment of the invention can avoid the condition that the call failure is resulted from the mismatch between independently-assigned TDM terminals at the target base station controller and a core network side, and increases the success ratio of calling.
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Description

technical field

[0001] The invention relates to the field of mobile communication, in particular to a method for switching, establishing and processing a call, and a corresponding device and system. Background technique

[0002] The Global System for Mobile communication (GSM for short) initially transmits signals based on a time division multiplexing (Time Division Multiple, TDM for short) transmission mode. Later, with the continuous development and popularization of Internet Protocol (Internet Protocol, referred to as IP) technology, the core network (Core Network, referred to as CN) has fully realized IP, and introduced the A interface signaling plane IP between CN and access network. Transmission SIGTRAN, the architecture diagram of the GSM system is as follows figure 1 As shown, the dotted line represents the signaling plane (Signaling), and the solid line represents the user plane (User plane). In this architecture, only the user plane of the A interface still adopt...

Claims

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