Call building method and system

A technology for call establishment and equipment, applied in the field of communication, can solve problems such as call loss, and achieve the effect of reducing call loss

Inactive Publication Date: 2017-04-26
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method and system for establishing a call to solve the problem in the prior art that in the scenario where the VoWiFi terminal serves as the called party, when the SBC / P-CSCF in the IMS network fails, the long time The call loss problem

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] The call establishment method provided by the embodiment of the present invention can be used in a network architecture where a VoWiFi terminal accesses an IMS network, such as figure 1 As shown, the network architecture includes: ePDG equipment 101, S / P-GW equipment 102, HSS equipment 103, 3GPP-AAA equipment 104, and SBC / P-CSCF equipment 105, S-CSCF equipment 106 and AS (Application Server, application server) device 107 constitutes the IMS core networ...

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Abstract

The invention discloses a call building method and system and relates to the technical field of communication. The call building method and system are invented to solve a problem that long time call loss is caused after SBC / P-CSCF faults occur based on technologies of the prior art when a VoWiFi terminal is a party being called. The call building method comprises the following steps: when SBC / P-CSCF device faults are detected, an S-CSCF device sends a notification message about the SBC / P-CSCF device faults to an ePDG device orderly via an HSS device and a 3GPP-AAA device; after receiving the notification message, the ePDG device sends an instruction message used for triggering the terminal to release current PDN connection to the terminal, and therefore the terminal can register on an IMS network again after receiving the instruction message. The call building method and system can be applied to processes in which voice business is performed via the VoWiFi terminal.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a call establishment method and system. Background technique [0002] IP Multimedia Subsystem (IMS) network is a brand-new multimedia service model. A core feature of IMS network is its independence from access. Specifically, it means that IMS supports various fixed access modes and mobile access modes. Various access methods including access methods. [0003] At present, with the gradual maturity of the (Voice Over Long Term Evolution, voice over LTE network) VoLTE service, the terminal itself has the capability of VoIP (Voice Over Internet Protocol, voice over IP), and most terminals also support WiFi ( WIreless-FIdelity, wireless fidelity) function, therefore, in the packet voice service, the terminal access to the IMS network through the WiFi network has also become a common access method. For ease of description, in this application, a terminal that accesses...

Claims

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Application Information

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IPC IPC(8): H04W24/04H04W76/02
CPCH04W24/04H04W76/18H04W76/19
Inventor 朱斌姜先贵符刚马瑞涛刘牧寅薛淼
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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