A method for implementing the pure circuit switching in the next-generation network

A circuit switching, next-generation technology, applied in network connection, telephone communication, electrical components, etc., can solve problems such as difficulty in implementing new services, troublesome implementation, and waste of VoIP resources, so as to save gateway VoIP resources, improve utilization, and call Continuing the effect of convenience

Inactive Publication Date: 2011-08-24
ZTE CORP
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Problems solved by technology

However, the current conventional method is to directly add two physical termination points into the same association. This method involves all aspects of the NGN network, and it is cumbersome to implement, and it is also very difficult to implement new services.
Therefore, in view of the waste of VoIP resources caused by calling between PSTN users through VoIP resources to the packet network in the existing method, and the difficulty in realizing new services, the present invention proposes a solution with simple implementation process and clear thinking

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  • A method for implementing the pure circuit switching in the next-generation network
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  • A method for implementing the pure circuit switching in the next-generation network

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Embodiment Construction

[0027] The invention proposes a solution to the problem of waste of VoIP resources caused by calling between PSTN users through the VoIP resources to the packet network in the existing method. The basic idea is as follows:

[0028] For the SS service side, the same process as that required for VoIP resources is still used formally, but this VoIP is a virtual VoIP resource, and VoIP resources are used in software implementation, but the gateway implementation does not apply for VoIP resources, and the protocol generates virtual VoIP resources. VoIP resources are used to ensure that the business-side process remains unchanged. During the call process, if the service side wants to operate VoIP resources, the H.248 protocol side replaces the VoIP operation with the physical entity operation, and then passes the relevant information through the extended media descriptor (X- ZteHairpin) to the gateway side. In this way, from the perspective of the SS, operations are performed on t...

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Abstract

The invention discloses a method that realizes pure circuit switching in network of future generation, which is used for the HAIRPIN calling procedure of the pure circuit switching between PSTN users under the control of soft switch SS, including steps: carrying out the structure extension of media descriptor in H.248 protocol; the professional side of soft switch judges a PSTN to PSTN user's calling, notifying the H.248 protocol module that this calling is a HAIRPI calling; during order mutual of H.248 protocol module with a gateway, the gateway judges the HAIRPIN calling according to the media descriptor sign, adds main called side information at media descriptor information bit, and carries out pure circuit switching call spicing. The invention makes the HAIRPIN call in the NGN networkinheriting the original various new business of user, which achieves gateway cost reduction effect, saves gateway VoIP resource, and improves the utilization ratio of gateway VoIP resource.

Description

technical field [0001] The invention relates to the field of next generation (NGN) network, in particular to the technology of gateway realizing pure circuit switching (HAIRPIN) process under the control of soft switch (SS). Background technique [0002] The development and practice of softswitch (SS) network technology is the basis for the evolution of traditional switching networks, but for operators, there is an urgent need to solve a problem: how to make full use of original network resources and protect existing investments while taking into account network development , to complete the smooth evolution of the traditional switching network. [0003] The introduction of softswitch into the PSTN local switching network is a gradual process. Its development strategy can adopt the overlay network mode to form a softswitch network independent of PSTN on the broadband packet network. In the early stage, new services are used to attract users and enhance market competitivenes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66H04L29/06H04M7/00
Inventor 任三星陈清文朱文华
Owner ZTE CORP
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