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Method and system for route reselection, international gateway and home location register

A technology of home location registration and gateway office, applied in electrical components, wireless communication, network data management, etc., can solve the problems of unable to choose MSC to initiate paging message, call failure and so on

Active Publication Date: 2013-10-23
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the international roaming scenario, different operators have different support capabilities for the Roaming Retry process. When a calling user on a network that does not support roaming reselection calls a called user on a network that supports roaming reselection, it is still possible The UE cannot select the MSC that initiated the paging message, resulting in call failure

Method used

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  • Method and system for route reselection, international gateway and home location register
  • Method and system for route reselection, international gateway and home location register
  • Method and system for route reselection, international gateway and home location register

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Embodiment Construction

[0018] For a better understanding of the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that the drawings and detailed description are only descriptions of preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way.

[0019] figure 1 A schematic diagram of a route reselection system according to an embodiment of the present application is shown. Such as figure 1 As shown, the route reselection system 100 includes: International Gateway Office (International Softswitch Consortium) ISC110, the home location register HLR120 of the called terminal, the mobile switching center MSC130 of the calling terminal, the mobile switching center MSC140 of the original registration of the called terminal, Call the terminal's newly registered Mobile Switching Center MSC150. The following will combine figure 2 and imag...

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Abstract

The invention relates to a method and a system for route reselection, an international gateway and a home location register. The method for route reselection comprises that a registered mobile switching center of a calling terminal queries a route for visiting a called terminal in international roaming through a home location register of the called terminal; the home location register of the called terminal provides an international gateway identity for an originally registered mobile switching center of the called terminal according to an international roaming network; the international gateway receives a route reselection message from the originally registered mobile switching center of the called terminal; and a link between the international gateway and the registered mobile switching center of the calling terminal is kept, a link between the international gateway and the originally registered mobile switching center of the called terminal is released, and a link between the international gateway and a newly registered mobile switching center of the called terminal is established.

Description

technical field [0001] The application relates to a route reselection method, system, international gateway office and home location register. Background technique [0002] In the initial stage of Long Term Evolution (LTE) and Evolved Packet Core Network (EPC) network construction, if there are mature second-generation or third-generation mobile communications (2nd generation / 3rd-generation, referred to as 2 / 3G) network, considering the investment cost of circuit switching CS and the deployment strategy of LTE / EPC, the original CS domain voice solution can be used to provide voice services, while LTE / EPC only handles such as IP multimedia Subsystem (referred to as IMS) and other data services. The 3rd generation partnership project (3rd generation partnership project, referred to as 3GPP) based on this requirement, proposed the CS voice fallback (CS Fallback referred to as CSFB) technology, that is, the user terminal (UE) under the coverage of LTE switches to the The serv...

Claims

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Application Information

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IPC IPC(8): H04W40/02H04W8/02
Inventor 李凯陈旭薛越
Owner CHINA MOBILE COMM GRP CO LTD
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