Non-3GPP QoS Differentiation Behind 5G-RG Using Device IDs
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Solution Overview
Problem
Existing 5G communication networks struggle to effectively manage and differentiate quality of service (QoS) for non-3GPP devices connected behind a 5G-RG or a UE, failing to recognize and treat each device according to its specific service requirements and capabilities.
Innovation Solution
A method and system for managing QoS differentiation by identifying non-3GPP devices through unique identifiers, selecting appropriate Policy Control Function (PCF) and User Plane Function (UPF) nodes, and generating Policy and Charging Control (PCC) rules to ensure tailored network treatment based on device-specific needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If non-3GPP devices are connected behind a 5G-RG or UE without device-specific identification, then network connectivity is maintained, but QoS differentiation capability is lost
Solution Approach 1:
The patent segments the network management approach by introducing device-specific identifiers (such as MAC addresses or custom identifiers) for each non-3GPP device. This segmentation enables the network to individually recognize and manage each device's QoS requirements, transforming the undifferentiated connection into multiple identifiable device sessions that can be independently controlled.
Solution Approach 2:
The patent introduces an intermediary identification mechanism (device identifier field in PDU session requests) that mediates between the non-3GPP devices and the 5G core network. This intermediary element enables the network functions (AMF, SMF, PCF) to distinguish between different devices without requiring direct 3GPP protocol implementation on the devices themselves.
2Reliability
If device-specific identifiers are implemented for non-3GPP devices, then QoS differentiation is enabled, but signaling overhead increases
Solution Approach 1:
The patent implements a universal device identifier field that can carry different types of identifiers (MAC addresses, custom device IDs, or other unique identifiers) depending on the specific deployment scenario. This multi-functional approach allows the same signaling mechanism to serve multiple identification purposes without requiring separate signaling paths for different identifier types.
Solution Approach 2:
The patent performs preliminary device identification during the PDU session establishment phase, where the device identifier is included in the initial session request. By establishing the device identity early in the connection process, the network can pre-configure QoS policies and routing rules, avoiding the need for subsequent signaling exchanges to establish device-specific parameters.
3Adaptability or versatility
If multiple PCF and UPF nodes are selected based on device identifiers, then service customization is improved, but network apparatus complexity increases
Solution Approach 1:
The patent utilizes parameter changes in device identifiers (such as different MAC address formats or custom identifier structures) to trigger different service customization paths. The network functions interpret these identifier parameters to automatically select appropriate PCF and UPF nodes, enabling service differentiation through parameter-based routing rather than complex manual configuration.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein provide a method and system for managing QoS differentiation for non-3GPP devices connected behind a 5G-RG or a UE. The method includes receiving PDU session request message from a UE or an AMF and detecting whether a policy control request trigger is met. The method includes detecting at least one of a PCF node and a UPF node of a second network apparatus which supports QoS differentiation. Further, the method includes selecting at least one of the PCF node and the UPF node of the second network apparatus based on the non-3GPP device identifier, upon detection of the policy control request trigger. Further, the method includes transmitting the non-3GPP device identifier and the user plane address of the non-3GPP device to at least one of the PCF node and UPF node.