Network Core Authentication for Wireless Media Conferencing
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Solution Overview
Problem
Current IMS registration processes in wireless communication networks require the Home Subscriber System (HSS) to serve both Mobility Management Entity (MME) and Call State Control Functions (CSCFs) for the same UE attachment, and fail to effectively integrate 4G LTE/5GNR access points and 4G/5G network cores.
Innovation Solution
A communication system that authorizes User Equipment (UE) for wireless data and media-conferencing services by using a network core to determine authentication data based on a shared secret key, minimizing access to user authorization and media conferencing servers, and integrating LTE/5G network elements to establish secure media conferencing connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the HSS serves both MME and CSCFs for the same UE attachment, then authentication can be performed, but the system complexity and access requirements to authorization servers increase
Solution Approach 1:
The patent segments the authentication process by introducing separate authentication servers for data service (MME) and media conferencing service (CSCF). The HSS is divided into functional components where the MME handles data service authentication and the CSCF handles media conferencing authentication, eliminating the need for a single server to handle both functions simultaneously.
Solution Approach 2:
The patent introduces an intermediary mechanism where the MME and CSCF communicate through standardized interfaces and protocols. The authentication credentials are transferred between these entities through defined signaling paths, reducing direct dependency and complexity of the authorization server access.
2Adaptability or versatility
If traditional IMS registration is used, then media conferencing service can be provided, but integration between 4G LTE/5GNR access points and 4G/5G network cores is ineffective
Solution Approach 1:
The patent implements a universal authentication framework that works across both 4G LTE and 5GNR networks. The same authentication mechanism and signaling procedures are applied regardless of whether the UE is connected through 4G or 5G access points, providing multi-functional compatibility and effective integration across different network generations.
3Adaptability or versatility
If multiple authentication servers are accessed, then service authorization can be performed, but access time and signaling overhead increase
Solution Approach 1:
The patent performs preliminary authentication during the initial network attachment phase. The UE's authentication credentials are pre-established and cached in the network entities, allowing for rapid service authorization without requiring repeated full authentication sequences when media conferencing services are requested.
Data Source
AI summary
A communication system authorizes a User Equipment (UE) for a wireless data service and a media-conferencing service. A network core receives UE authentication data from the UE that is based on a secret key. The network core determines network authentication data for the UE that is also based on the secret key. The network core authorizes the UE for the wireless data service based on the UE authentication data and the network authentication data. The network core transfers the network authentication data for the UE to a media-conferencing server in response to the authorization of the UE for the wireless data service. The media-conferencing server receives other UE authentication data from the UE that is based on the secret key. The media-conferencing server authorizes the UE for the media-conferencing service based on the other UE authentication data from the UE and the network authentication data from the network core.