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

A technology of base station controller and media gateway, applied in electrical components, wireless communication, etc., can solve the problems of call failure and mismatch of TDM endpoints, and achieve the effect of avoiding call failure and improving call success rate.

Inactive Publication Date: 2012-04-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The embodiment of the present invention provides a call switching, establishment, processing method and corresponding device and system to solve the defect that the TDM endpoint of the target BSC may not match the TDM endpoint assigned by the MGW in the call switching process of the prior art, resulting in call failure

Method used

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

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Embodiment 5

[0116] Such as Figure 7 As shown, it is a flow chart of Embodiment 5 of the call switching method provided by the embodiment of the present invention; this embodiment includes:

[0117] Step 711, BSC1 sends a handover application message to MSC Server, the message carries the voice code RanC1 currently used by BSC1;

[0118] Step 713: After receiving the handover application message, the MSC Server sends an add endpoint request message (ADD.Req) to the MGW, which carries a recommended voice code (preferred RanC, pRanC for short) and endpoint information, for example, endpoint The information may include the endpoint type that needs to be created by the MGW, that is, the IP endpoint;

[0119] Step 715, the MGW creates an IP endpoint paired with BSC2 according to the received Add Endpoint Request message, and returns an Add Endpoint Response message (ADD.Reply), which carries the created endpoint information, that is, the IP endpoint information;

[0120]Step 717, MSC Server ...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/10H04W88/16H04W88/12
Inventor 秦钧朱星王之曦
Owner HUAWEI TECH CO LTD
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