Method of continuing called subscriber and its network system

A called user and network connection technology, applied in the field of communication, can solve the problems of reducing the probability of successful connection to the user, affecting the user's service experience, untimely, etc. Effect

Active Publication Date: 2009-02-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The present invention provides a method for connecting the called user and its network system to solve the problem that the called user temporarily loses the network connection in the currently determined called connection network in the prior art and cannot be timely, because the compensation for this problem is not considered Dealing with the problem that the connection cannot be made in other network domains that the called user can reach, thereby reducing the probability of successfully connecting to the user, and thus affecting the user's service experience

Method used

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  • Method of continuing called subscriber and its network system
  • Method of continuing called subscriber and its network system
  • Method of continuing called subscriber and its network system

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Embodiment Construction

[0051] In the case that the user temporarily loses connection with the network, the present invention determines that the user cannot try to connect the user in another domain in time in the currently determined called connection network, so as to provide flexible selection of the called connection according to the operator and user strategy or preference. While improving the capabilities of the network, the success rate of the connection is improved as much as possible.

[0052] The network selection decision query entity in the IMS network system is used to inquire about the current called connection network selection decision from the network selection decision entity after receiving the IMS service request directed to the served user, and according to the called connection network specified in the decision Perform routing control. The network selection decision-making entity is used to make the called connection network selection decision according to various network selec...

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Abstract

This invention discloses a method for connecting called user used in the network system including CS domain and IP IMS, in which, a network selection and enquiry entity receives a current called connection network selection decision obtained from a network selection entity when receiving the service request transmitted to its service user and controls routes to connect to the called user according to the call network appointed by the decision, when deciding that the called user can't reach to the called connection network, it switches it to another called network to control the route to re-connect to the called user and prevents circular switching between the two networks. This invention also discloses a network system.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for connecting a called user and a network system thereof. Background technique [0002] Starting from the 3GPP R5 stage, the Universal Mobile Telecommunications System (UMTS) core network is divided into three subsystems: Circuit Switched Domain (CS) domain, Packet Switched Domain (PS) domain and IP Multimedia Subsystem (IMS) domain . [0003] The CS domain is used to provide connections for circuit-type services to users, including: [0004] Mobile switching center MSC (MSC Server / CS-MGW): complete the switching and signaling control functions of circuit switching services. [0005] Gateway Mobile Switching Center GMSC: MSC that completes the routing and addressing function of mobile users in a certain network, and can be set up together with MSC or separately. [0006] Network interworking function IWF: closely related to MSC, it completes the intercommunicat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04Q7/22
CPCH04L12/66
Inventor 朱东铭段小琴
Owner HUAWEI TECH CO LTD
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