UE-to-UE Relay QoS Reporting for Split and End-to-End Links
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently configuring and reporting QoS-related configurations and bearer configurations in UE-to-UE relay operations, particularly in V2X scenarios, where split QoS and end-to-end QoS are not efficiently managed.
Innovation Solution
A method and apparatus for a source remote UE in UE-to-UE relay to establish a PC5 link with a relay UE, and a target remote UE via a relay UE, receive information about split QoS, and report this information to a serving base station, enabling effective QoS-related configurations and reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If QoS-related configurations are implemented in UE-to-UE relay operations, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The relay UE acts as an intermediary between the source remote UE and target remote UE, forwarding QoS configurations and bearer information through the PC5 interface. This mediator approach enables complex QoS management in multi-hop relay scenarios without requiring direct end-to-end configuration between source and target UEs, thus improving reliability while managing device complexity through distributed configuration.
2Manufacturing precision
If split QoS and end-to-end QoS are managed separately, then QoS configuration precision is improved, but information reporting overhead increases
Solution Approach 1:
The patent combines split QoS parameters (configured per hop between source relay UE and relay UE) and end-to-end QoS parameters (configured between source remote UE and target remote UE) into a unified QoS configuration framework. This merging allows precise QoS management at different levels while reducing redundant information reporting by consolidating QoS parameter transmission through the relay UE to the serving base station.
Data Source
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AI summary
An operation method of a source remote UE in UE-to-UE relay in a wireless communication system includes establishing, by the source remote UE, a PC5 link with a relay UE, establishing, by the source remote UE, an end-to-end link with a target remote UE via the relay UE, receiving, by the source remote UE, information about a split quality of service (QoS) from the relay UE, and reporting, by the source remote UE, the information about the split QoS received from the relay UE and an end-to-end QoS related to the information about the split QoS to a serving base station (BS) of the source remote UE.