QoS Parameter Mapping for 5G PC5 Link and PDU Session Matching
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Solution Overview
Problem
In 5G communication systems, there is a challenge in matching Quality of Service (QoS) flows between PC5 links and PDU sessions to meet the diverse QoS requirements of services such as NCIS, which demand high rates, low delays, and low packet loss rates.
Innovation Solution
A method for QoS parameter configuration is introduced, where a network device transmits a mapping between first and second QoS parameters, applied to QoS flows between a device and a network device, and between a device and another device. This mapping allows for the correct association of QoS flows in PC5 links and PDU sessions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple bearers are set up to support diverse services concurrently over PC5 interface, then service diversity and network coverage are improved, but QoS parameter matching complexity between PC5 links and PDU sessions increases
Solution Approach 1:
The patent introduces a mapping relationship as an intermediary mechanism between PC5 link QoS parameters and PDU session QoS parameters. This mapping table acts as a mediator that translates and matches QoS parameters across different interfaces, resolving the complexity of direct parameter matching while enabling diverse services to coexist properly.
Solution Approach 2:
The patent employs parameter transformation by establishing correspondence relationships between different QoS parameter sets. When a PC5 link establishes a bearer, the system transforms the QoS parameters according to the mapping relationship to match with appropriate PDU session parameters, thereby supporting service diversity without increasing operational complexity.
2Reliability
If QoS flows are correctly matched between PC5 links and PDU sessions, then service quality is improved, but configuration complexity increases
Solution Approach 1:
The patent implements preliminary configuration by pre-establishing mapping relationships between PC5 link QoS parameters and PDU session QoS parameters before actual communication begins. This advance preparation ensures correct QoS flow matching is automatically applied during bearer establishment, improving service quality without requiring complex real-time configuration.
Solution Approach 2:
The system performs self-configuration through automatic QoS parameter matching based on pre-established mapping relationships. When a PC5 link bearer is established, the corresponding PDU session QoS parameters are automatically determined through the mapping mechanism, eliminating manual configuration complexity while ensuring reliable service quality.
Data Source
AI summary
Methods for quality of service (QoS) parameter configuration and related apparatuses are provided. A method for QoS parameter configuration includes the following. A first device obtains a mapping between a first QoS parameter and a second QoS parameter. The first QoS parameter is applied to a first QoS flow, and the second QoS parameter is applied to a second QoS flow. The first QoS flow is a QoS flow between the first device and a network device, and the second QoS flow is a QoS flow between the first device and a second device.