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Switching realizing method and system

An implementation method and a technology for switching messages, which are applied in the field of realizing switching of voice services in the circuit switching domain, can solve the problems of reducing the switching success rate, switching failure, and failure to find the MSCn address, etc., and achieve the effect of improving the switching success rate

Inactive Publication Date: 2014-01-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since MSC 1 and MSC n are not directly connected offices at this time, MSC 1 cannot find the target cell information, that is, LAIN in the cell list of the adjacent office, and thus cannot find the address of MSC n, resulting in handover failure , which reduces the handover success rate

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  • Switching realizing method and system
  • Switching realizing method and system
  • Switching realizing method and system

Examples

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Embodiment Construction

[0054]In the present invention, when the UE performs CS domain voice service through the EPS network, the IWF obtains the current location of the UE; the IWF simulates the base station to send a handover message to the core network according to the change of the UE's position, and switches the core network or the IWF. The specific implementation of the present invention will be described in detail below through several specific embodiments.

[0055] Figure 6 It is a schematic diagram of the system structure of UE voice call switching in Embodiment 1 of the present invention, as shown in Figure 6 as shown, Figure 6 The scenario based on this is: During the voice call process of the UE, the IWF detects that the location of the UE has changed, and the current location of the UE is no longer within the coverage of MSC 1. E-UTRAN 1 moves to E-UTRAN n-1, and the EPS bearer of the UE initiates handover first, such as Figure 6 The EPS bearer path 1 shown in is switched to EPS b...

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Abstract

The invention discloses a switching realizing method and a switching realizing system. In the scheme of the invention, when user equipment (UE) performs a CS domain voice service through an EPS network, IWF acquires the current position of the UE; the IWF simulates a base station to send a switching message to a core network according to the position change of the UE to switch the core network or the IWF, so when the UE crosses different MSC coverage areas while moving in the EPS network, the IWF can sense the position change of the UE and perform switching between MSCs so as to overcome switching failure because a target cell is unknowable to a source MSC when the UE switches the CS domain voice service under the access of the EPS network and to enhance switching success rate. Moreover, in the scheme of the invention, when the UE performs the CS domain voice service through the EPS network, the IWF can sense the positions of the UE in different IWFs, which is resulted from the movement of the UE, so as to perform switching between the IWFs.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and system for realizing switching of voice services in the Circuit Switched (CS, Circuit Switched) domain under the network access of the Evolved Packet Domain System (EPS, Evolved Packet System). Background technique [0002] In order to maintain the strong competitiveness of the third generation mobile communication system standardization project (3GPP, 3rd Generation Partnership Project) in the field of mobile communication, 3GPP is currently working on research on the PS Core (Packet Switched Core) network and global mobile communication The evolution of the system radio access network (UTRAN, Universal Mobile Telecommunication System Radio Access Network), the purpose is to enable the evolved PS Core (EPC) network to provide higher transmission rates, shorter transmission delays, and support UTRAN, evolution UTRAN (E-UTRAN, Evolved UTRAN), Enhanced Data Rate G...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/10H04W36/12H04W36/14
Inventor 陶全军郝振武谢振华谢宝国
Owner ZTE CORP