Network architecture for carrying number based on distributed DNS system in IMS network and its method

A technology of number portability and network structure, which is applied in the field of number portability, can solve difficult problems such as number portability, and achieve the effects of small changes to the existing network, good scalability and manageability, and low delay
CN101102205AInactive Publication Date: 2008-01-09ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2008-01-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The network architecture comprises: a number management domain, a number current domain and a number settling-in domain. Each of the number management domain, number current domain and number settling-in domain respectively comprises: an IMS calling processing net element comprising CSCF, BGCF, MGCF, IBCF or the IMS network calling processing node that will be defined by standardization organization; a number carrying database with DNS access interface used for storing the data of users in the domain and the emigration domain check list of user emigrating to other domain; an IMS home subscription user server used for saving the active number resource of the domain where it is located at.
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Description

technical field

[0001] The invention relates to number portability, in particular to a network structure and method for realizing number portability based on a distributed DNS system in an IMS network. Background technique

[0002] The full name of IMS is IP Multimedia Subsystem, that is, IP Multimedia Subsystem. It is a multimedia communication network defined by 3GPP that uses SIP protocol as call control signaling. Next-generation core network.

[0003] Number portability is a technology for telecom users to migrate in different geographical areas or switch between different operators without changing their own numbers. As a technology, it is not only a regulatory requirement for operators to break the monopoly and lower the competition threshold, but also a service adopted by operators to improve their own competitiveness.

[0004] Traditional networks generally adopt the E.164 user numbering method defined by ITU-T (International Telecommunication Union Standardizatio...

Claims

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