Priority-Based Coexistence for Multi-RAT V2X Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle-to-everything (V2X) and device-to-device (D2D) communication systems face challenges in managing coexistence between different radio access technologies (RATs) like NR and LTE, leading to potential reception or transmission problems due to overlapping communications.
Innovation Solution
The proposed solution involves detecting overlaps in time between transmissions or receptions using different RATs and prioritizing packets based on their relative priority levels or interruption levels, ensuring accurate communication by managing half-duplex constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a device uses multiple radio access technologies (RATs) for V2X communication, then communication versatility and coverage are improved, but coexistence problems and reception reliability deteriorate due to overlapping transmissions and receptions
Solution Approach 1:
The device performs preliminary detection to identify time overlaps between transmissions and receptions on different RATs before the actual communication occurs. By detecting potential conflicts in advance, the device can proactively prioritize packets and avoid reception failures, thus maintaining reliability while using multiple RATs for versatility
2Measurement precision
If the device prioritizes packets based on priority levels to manage coexistence, then reception accuracy is improved, but system complexity increases due to overlap detection and prioritization mechanisms
Solution Approach 1:
The device changes the parameter of packet prioritization by assigning priority levels to different packets based on their importance. This simple parameter-based approach enables the device to resolve coexistence conflicts effectively, improving reception accuracy without requiring complex interference management algorithms
Data Source
AI summary
An apparatus may comprise a component for communicating using a first RAT and another component for communicating using a second RAT. Overlapping communication using the two RATs may cause problems for proper reception at the apparatus. The apparatus may detect that transmission or reception of a first packet using a first RAT will overlap in time with reception of a second packet using a second RAT. The apparatus prioritizes the first packet or the second packet based at least on a relative priority of the first packet and the second packet.