5G Relay Terminal QoS Mapping Across Two Transmission Segments
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Solution Overview
Problem
In 5G mobile communication systems, the quality of service (QoS) management for data transmission between a remote terminal and a network side via a relay terminal is inadequate, leading to mismatches in QoS parameters between first-segment and second-segment data transmissions, which fail to meet service transmission requirements.
Innovation Solution
A method for managing QoS involves a relay terminal obtaining and sending QoS information to a remote terminal, ensuring a mutual mapping and association between QoS parameters for both segments of data transmission, including the use of a PCF network element for authorization and an SMF network element for session management to ensure end-to-end QoS assurance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate QoS management is performed on first-segment and second-segment data transmissions, then QoS parameters can be independently optimized for each segment, but QoS parameter mismatches occur between segments leading to failure in meeting service transmission requirements
Solution Approach 1:
The patent merges separate QoS management of first-segment and second-segment data transmissions into a unified end-to-end QoS management framework. The network device establishes association relationships between QoS parameters of both segments, ensuring coordinated optimization rather than independent management, thereby preventing parameter mismatches while maintaining service transmission requirements.
2Device complexity
If QoS information is not associated between first QoS information and second QoS information, then configuration complexity is reduced, but transmission delays accumulate and packet loss occurs due to rate mismatches
Solution Approach 1:
The patent implements a feedback mechanism where the network device establishes association relationships between first QoS information and second QoS information. The network device configures QoS parameters for both segments and maintains their correspondence, allowing coordinated adjustment and preventing transmission issues while managing complexity through centralized control.
3Productivity
If transmission rates of first QoS information and second QoS information are different, then bandwidth utilization is improved, but data packet loss occurs at the relay terminal
Solution Approach 1:
The patent controls transmission rates by establishing association relationships between QoS parameters of first and second segments. The network device adjusts QoS parameters dynamically while maintaining coordinated rate changes, preventing packet loss at the relay terminal while optimizing bandwidth utilization through parameter synchronization.
Data Source
AI summary
Embodiments of this application disclose a method for managing QoS, a relay terminal, a PCF network element, an SMF network element, and a remote terminal. The method includes: A relay terminal obtains QoS information from a network device, where the QoS information includes first QoS information and/or second QoS information, the first QoS information is used to transmit data of a remote terminal between the remote terminal and the relay terminal, and the second QoS information is used to transmit the data of the remote terminal between the relay terminal and a UPF network element; and the relay terminal sends the first QoS information to the remote terminal based on the QoS information. According to embodiments of this application, QoS from the remote terminal to a network side can be properly managed, and a requirement on service transmission from the remote terminal to the network side is ensured.