Voice service processing system, method and device for 5G network

Abstract

The embodiment of the invention provides a voice service processing system, method and device for a 5G network. The system comprises a PCF node; the PCF node is connected with an IMS service network node in the 4G network through an added Rx interface; the information interaction of the Rx interface is realized according to a message defined by a Diameter protocol; the Rx interface is used for mapping the received Rx media parameters into 5G QoS parameters. The method comprises the following steps: if an AAR message sent by an IMS service network node of a 4G network is received, calling a servitization interface of a session management function SMF according to a media type and service information carried by the AAR message so as to trigger a modification process of a 5G PDU session and establishment or modification of a voice service QoS flow; receiving a strategy updating notification response returned by the SMF; and generating an AAA message, and feeding back the AAA message to the IMS service network node. By connecting the Rx interface with the IMS service network node in the 4G network, the 5G high-capacity and high-rate bandwidth can be quickly used, high-quality voice isprovided at the initial stage of the existing network, and the upgrading and updating of the network are facilitated.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a voice service processing system, method, and device for a 5G network. Background technique [0002] The current 5G voice technology solutions include EPS FALLBACK (4G network fallback), NEW NR (5G air interface), and RAT FALLBACK (wireless access type fallback). Among them, the EPS FALLBACK solution requires the voice to fall back to the 4G network, and requires the interactive use of 4G and 5G equipment. This solution can be used in the initial stage of network construction. The voice service of this solution needs to use 4G bandwidth, which is ideal for 5G networks that provide large capacity and high speed. It is a waste. In addition, the switching process and signaling interaction require time delay; the NEW NR solution uses brand-new 5G network elements to complete, and the 5G IMS of this solution needs to be developed. At present, each ...

AI Technical Summary

Problems solved by technology

[0009] In the existing technology, 4G air interface is used, occupying 4G bandwidth, which is a waste of resources for the high bandwidth and high speed of 5G. In addition, NEW NR requires the transformation of IMS network, so EPS FALLBACK and RAT FALLBACK are the initial stage of network construction. As a voice solution, VoNR technology utilizes 5G air interface resources and can provide high-quality audio services. However, due to the large transformation of IMS, it can only be used in the later stage of network construction.

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