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Method for implementing number carrying in IP multimedia subsystem network

A multimedia subsystem and number portability technology, applied in the field of number portability, can solve the problems of poor management and poor scalability.

Inactive Publication Date: 2008-02-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In theory, its number portability can also adopt an application server solution similar to the traditional intelligent network, but this solution cannot be well managed and has poor scalability

Method used

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  • Method for implementing number carrying in IP multimedia subsystem network
  • Method for implementing number carrying in IP multimedia subsystem network
  • Method for implementing number carrying in IP multimedia subsystem network

Examples

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Embodiment Construction

[0035] The technical scheme that the present invention adopts in the method that IP multimedia subsystem network realizes number portability requires defining two public user identifications (PUI) for each IMS user, and one is the initial user's subscription IMS identification, referred to as V-PUI ( Virtual PUI), V-PUI is visible to users, the so-called number portability refers to the portability of V-PUI, V-PUI usually cannot be directly used for user addressing, cannot be used for registration, and cannot be used to identify users in HSS data; another identifier is the user's real identifier that can be used for routing, which is called addressable identifier (R-PUI) here. R-PUI is generally invisible to users, and R-PUI is stored in ISIM (IP Multimedia Subsystem User Identification Code: IMS subscriber identity module) card, the R-PUI will change because the user migrates in different geographical areas or transfers between different operators. In the final call process, t...

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Abstract

This invention discloses a method for realizing carrying numbers in an IP multimedia subsystem network including: 1, a first UE transacts number-carry service to an ingoing domain and refreshes the addressing ID of said domain, 2, a second UE starts up a call to the first UE at its attributed domain and enquires to get the addressing ID of the first UE by a domain name system server of phone number mapping working group, 3, the two UE finish the call connection according to the addressing ID of the first UE.

Description

technical field [0001] The invention relates to an IMS (IP Multimedia Subsystem) network, in particular to a number portability method in the IMS network. Background technique [0002] The full name of IMS is IP Multimedia Subsystem (IP Multimedia Subsystem). It is a multimedia communication network defined by 3GPP (Third Generation Partnership Project) that uses SIP (Session Initiation Protocol) as call control signaling. It has been adopted by 3GPP2, Adopted by standard organizations such as TISPAN (Telecom and Internet Converged Services and Advanced Network Protocol) as the next-generation core network for the convergence of mobile and fixed networks. The user numbers of the IMS system are divided into private user identities (PVI: Private user identities) and public user identities (PUI: Public user identities). [0003] Each IMS user has one or several PVIs. The private user identity is assigned by the operator of the home network and is used for registration, author...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04Q7/38
Inventor 邢忠卿
Owner ZTE CORP
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