Determination method of access domain and auxiliary method for determining access domain

Abstract

The invention discloses a method for determining an access domain and an auxiliary method for determining the access domain. The method for determining the access domain includes: receiving an invitation INVITE message including the target identifier of the called user; according to the target identifier and the stored user identifier list registered in the long-term evolution voice bearer VoLTE network, obtain the called user in the VoLTE network Registration information; if the registration information is a registered state, it is determined that the called user's access domain is an Internet Protocol Multimedia Subsystem IMS domain; if the registration information is an unregistered state, it is determined that the called user's access domain is a circuit switched CS domain; Wherein, the user identification list is updated according to the IMS deregistration request or IMS registration request actively sent by the user terminal, and the IMS deregistration request or IMS registration request is sent by the user terminal according to the result of its own network switching. According to the method for determining the access domain and the auxiliary method for determining the access domain provided in the embodiments of the present invention, the determination of the access domain can be quickly realized.

Description

technical field [0001] The present invention relates to the field of data services, in particular to a method, device, and device for determining an access domain, and an auxiliary method, device, device, and computer storage medium for determining an access domain. Background technique [0002] IP Multimedia Subsystem (IP Multimedia Subsystem, IMS) is the development direction of multimedia communication in the future, and it is also the most important component of the next generation network. It is a subsystem supporting IP multimedia services proposed by the Third Generation Partnership Project (Third Generation Partnership Project, 3GPP). IMS-based Voice over Long-Term Evolution (VoLTE) is a major development direction recognized by 3GPP for a long-term evolution (Long Term Evolution, LTE) network voice solution. [0003] Due to the insufficient coverage in the early stage of LTE network deployment, in order to ensure the continuity of voice services, it is necessary to...

AI Technical Summary

Problems solved by technology

[0005] During the call establishment process of VoLTE, currently, the continuity application server (Server Centralization and Continuity Application Server, SCCAS) interacts with the home subscriber server (Home Subscriber Server, HSS) to perform T-ADS query to realize the selection of the user access domain. The method increases the interaction process between SCCAS and HSS, which has an impact on VoLTE delay, resulting in a large call delay

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