Sidelink Resource Request via Optional QoS RRC Message
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently requesting and managing sidelink transmission resources, particularly in next-generation networks like 5G, where dynamic and high-data-throughput requirements are increasing, and existing methods lack effective mechanisms for Quality of Service (QoS) management in Vehicle-to-Everything (V2X) communications.
Innovation Solution
A method and apparatus for a User Equipment (UE) in RRC_CONNECTED state to request sidelink resources by transmitting a Radio Resource Control (RRC) message, optionally including sidelink QoS information, to a network node, which allows for dynamic allocation and management of sidelink resources, ensuring optimal QoS for V2X services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sidelink QoS information is included in the RRC message, then QoS management capability is improved, but message complexity increases
Solution Approach 1:
The QoS information is segmented into a dedicated list structure (sidelinkQoSInfoList) that can be optionally included in the RRC message. This segmentation allows the system to include only necessary QoS parameters when needed, rather than transmitting complete QoS configurations in all scenarios, thus improving QoS management capability while controlling message complexity through selective inclusion.
2Productivity
If dynamic resource allocation is implemented, then resource utilization efficiency is improved, but control signaling overhead increases
Solution Approach 1:
The system performs preliminary configuration of sidelink resources through RRC signaling, where the network node pre-allocates resource pools and parameters to UEs. This preliminary action enables UEs to autonomously select and use resources from pre-configured pools without requiring continuous dynamic scheduling requests, thereby improving resource utilization efficiency while minimizing control signaling overhead during actual data transmission.
Data Source
AI summary
A method and apparatus are disclosed from the perspective of a first User Equipment (UE) in RRC_CONNECTED to request sidelink resources. In one embodiment, the method transmits a first RRC (Radio Resource Control) message to a network node, wherein a presence of a sidelink QoS (Quality of Service) information list in the first RRC message is optional.