Relay QoS Coordination for Multi-Hop PC5 Service Links
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Solution Overview
Problem
In 5G networks, when terminal devices with proximity service capability are far apart and cannot establish a direct PC5 communication link, the relayed communication through a third device results in cumulative QoS parameters that fail to guarantee the desired data transmission quality, leading to suboptimal service interaction.
Innovation Solution
A QoS control method where a first terminal device receives QoS information from a second terminal device, obtains additional QoS information, and transmits it to a third terminal device, ensuring that the combined QoS parameters meet the end-to-end requirements for service interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If relayed communication is used through a third device, then terminal devices far apart can establish communication, but cumulative QoS parameters fail to guarantee desired data transmission quality
Solution Approach 1:
The patent introduces a QoS control apparatus as an intermediary component that operates between terminal devices in relayed communication. This apparatus receives QoS information from one terminal device, calculates appropriate QoS parameters for the relayed path, and transmits control information to another terminal device. By inserting this intermediary controller, the system can guarantee end-to-end QoS requirements even when direct communication is not possible, thus resolving the contradiction between enabling far-distance communication and maintaining data transmission quality.
Solution Approach 2:
The patent implements a feedback mechanism where the QoS control apparatus receives QoS information from terminal devices, processes this information to determine appropriate QoS parameters for relayed communication, and sends control information back to the terminal devices. This closed-loop feedback allows the system to adjust QoS parameters dynamically to meet end-to-end requirements, thereby maintaining data transmission quality in relayed communication scenarios.
2Adaptability or versatility
If relayed communication is used through a third device, then terminal devices far apart can establish communication, but QoS parameters become cumulative and suboptimal
Solution Approach 1:
The patent applies parameter changes by having the QoS control apparatus calculate new QoS parameters based on the received QoS information and the specific characteristics of the relayed path. Instead of using fixed or cumulative QoS parameters, the system dynamically adjusts these parameters to reflect the actual communication conditions between terminal devices through the relay device. This ensures that QoS parameters accurately represent the end-to-end service quality requirements rather than being merely cumulative sums of individual segments.
Data Source
AI summary
Provided are a QoS control method and apparatus, and a readable storage medium. A source UE sends request information to a target UE according to the triggering of an application, wherein the request information comprises QoS information of service data that is transmitted between the source UE and the target UE; and when receiving the request information issued by the source UE to the target UE, a relay UE can obtain QoS information of the service data that is transmitted between the source UE and the relay UE, and QoS information of the service data that is transmitted between the relay UE and the target UE.