Fixed-Network 5G QoS Control Through VLAN Priority Mapping
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Solution Overview
Problem
There is no existing solution for implementing Quality of Service (QoS) control when a 5G core network is accessed through a fixed network.
Innovation Solution
A QoS control method and system that includes an access gateway function entity and a session management function entity to manage the correspondence between QoS files and VLAN priorities, enabling QoS control for uplink data packets when accessing a 5G core network through a fixed network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If QoS control is implemented for fixed network access to 5G core network, then service quality and data packet handling optimization are improved, but device complexity and implementation difficulty increase due to the need to manage correspondence between QoS files and VLAN priorities
Solution Approach 1:
The access gateway function entity serves as an intermediary between the terminal and the 5G core network, managing the correspondence between QoS files and VLAN priorities. It receives QoS files from the session management function entity, determines appropriate VLAN priorities, and incorporates them into downlink data packets sent to the terminal, thereby enabling QoS control without requiring complex terminal-side implementation
Solution Approach 2:
The system establishes a feedback mechanism where the access gateway function entity receives QoS files from the session management function entity, processes them to determine VLAN priorities, and sends control information back to the terminal. This feedback loop enables dynamic QoS adjustment based on network conditions and service requirements
2Adaptability or versatility
If correspondence management between QoS files and VLAN priorities is established, then QoS control capability is improved, but information management complexity and processing overhead increase
Solution Approach 1:
The access gateway function entity pre-establishes the correspondence between QoS files and VLAN priorities before actual data transmission. When QoS files are received from the session management function entity, the gateway proactively determines the VLAN priority mappings and stores them for subsequent use, avoiding the need to perform complex mappings in real-time during data packet processing
Solution Approach 2:
The system transforms QoS file parameters into VLAN priority parameters through a systematic mapping process. The access gateway function entity changes the parameter representation from QoS file identifiers to VLAN priority values, enabling compatibility between the 5G core network QoS framework and the fixed network VLAN-based QoS mechanism
Data Source
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AI summary
This application discloses a QoS control method, device, and system, to implement QoS control when a 5G core network or another future network is accessed through a fixed network. The method includes: obtaining, by an access gateway function entity, a correspondence between a QoS file and a virtual local area network VLAN priority, where the correspondence between the QoS file and the VLAN priority includes a correspondence between a first QoS file and a first VLAN priority; sending, by the access gateway function entity, a first message to a terminal, where the first message includes the correspondence between the QoS file and the VLAN priority; receiving, by the access gateway function entity, an uplink data packet from the terminal, where a QoS file corresponding to the uplink data packet is the first QoS file, and the uplink data packet carries the first VLAN priority; and performing, by the access gateway function entity, QoS control on the uplink data packet based on the first VLAN priority.