Sidelink Resource Priority Signaling to Reduce 5G V2X Collisions
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Solution Overview
Problem
Existing sidelink communication systems in 5G V2X lack efficient mechanisms for resource allocation and coordination between user equipment, leading to suboptimal performance and potential collisions.
Innovation Solution
A communication apparatus and method that prioritizes resource use in sidelink communication by determining and coordinating resource allocation through control circuitry, enabling terminals to exchange inter-UE resource adjustment information for optimized communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sidelink communication is performed without efficient resource allocation mechanisms, then communication can be established between terminals, but resource collisions occur and performance deteriorates
Solution Approach 1:
The patent applies preliminary action by having terminals perform sensing operations before resource selection to identify available resources and avoid collisions. The terminal senses the sidelink channel in advance, collects resource availability information, and then selects resources based on this pre-acquired knowledge, preventing collisions before they occur.
Solution Approach 2:
The patent implements feedback mechanisms where terminals exchange resource adjustment information through signaling. The receiving terminal provides feedback about resource usage to the transmitting terminal, allowing the transmitting terminal to adjust its resource selection and avoid collisions, creating a closed-loop control system.
2Productivity
If resource allocation is left to individual terminal selection without coordination, then device complexity is reduced, but resource utilization efficiency decreases
Solution Approach 1:
The patent applies self-service by enabling terminals to autonomously select resources based on sensing results and pre-configured rules without requiring centralized network control. Each terminal independently performs sensing, evaluates resource availability, and makes its own resource selection decisions, reducing network complexity while improving resource utilization through coordinated autonomous behavior.
3Reliability
If terminals transmit and receive signals simultaneously without priority determination, then communication flexibility is maintained, but signal interference increases
Solution Approach 1:
The patent applies preliminary action by determining signal priorities in advance before actual transmission and reception operations. The terminal pre-establishes priority rules for different signal types and uses these predetermined priorities to resolve potential conflicts, ensuring that high-priority signals are protected from interference before interference can occur.
Data Source
AI summary
This communication device comprises a control circuit and a transmission circuit. The control circuit determines which of a plurality of communications to be prioritized, that include transmission and/or reception of information to adjust the use of resources between communication devices in side link communication. A communication circuit performs communication in accordance with the determination of the control circuit.