V2X Resource Selection Around High-Priority Reception Slots
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Solution Overview
Problem
Existing wireless communication systems, particularly in V2X communications, lack a mechanism for user equipment (UE) to intelligently select transmission resources that minimize overlap between its own transmissions and the reception of higher-priority data from other UEs, leading to potential missed important data due to prioritization of transmission over reception without considering data priority.
Innovation Solution
The UE determines a pool of resources by excluding time slots based on expected receptions and modifies this pool by adding back time slots based on priority, allowing it to select resources that minimize overlap with high-priority receptions, ensuring its own transmissions do not interfere with critical data from other UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE prioritizes its own data transmission over reception, then transmission efficiency is improved, but important high-priority data from other UEs may be missed
Solution Approach 1:
The patent applies local quality by making the UE's reception capability priority-dependent. Instead of uniformly prioritizing transmission or reception, the system selectively applies different priorities to different reception scenarios. High-priority receptions (e.g., safety-critical V2X messages) are protected by preventing transmission overlap, while low-priority receptions allow transmission to proceed. This localized application of quality rules resolves the contradiction by ensuring transmission efficiency for non-critical scenarios while maintaining reception reliability for critical scenarios.
Solution Approach 2:
The patent implements dynamics by making the transmission/reception priority relationship flexible and context-dependent. The UE dynamically adjusts its behavior based on the priority level of expected receptions. When high-priority data is detected, the UE dynamically switches to reception-priority mode, excluding overlapping time slots from transmission resource selection. When only low-priority data is expected, the UE operates in transmission-priority mode. This dynamic adaptation resolves the contradiction by allowing the system to optimize for transmission efficiency or reception reliability based on real-time conditions.
2Reliability
If the UE excludes time slots based on all expected receptions, then reception reliability is improved, but transmission resources become insufficient
Solution Approach 1:
The patent applies local quality by differentiating between high-priority and low-priority receptions in the resource exclusion process. Instead of uniformly excluding all time slots with expected receptions, the system selectively excludes only those time slots containing high-priority receptions. For low-priority receptions, the UE permits transmission even when overlap occurs. This localized exclusion strategy resolves the contradiction by protecting reception reliability for critical data while maintaining transmission resource availability for non-critical scenarios.
Solution Approach 2:
The patent implements partial action by applying reception protection only partially - specifically to high-priority receptions rather than all receptions. The UE performs selective exclusion of time slots based on priority thresholds, avoiding the excessive action of excluding all reception time slots. This partial application of the exclusion rule resolves the contradiction by providing sufficient protection for critical receptions while leaving adequate transmission resources available by not over-constraining the system.
3Productivity
If the UE adds back low-priority time slots to available resources, then transmission resource availability is improved, but overlap with high-priority receptions may occur
Solution Approach 1:
The patent applies local quality by implementing priority-based differentiation in the resource pool management. The UE maintains distinct treatment for high-priority and low-priority time slots: high-priority slots are strictly protected from transmission overlap, while low-priority slots are made available for transmission when resources are needed. This localized quality assignment resolves the contradiction by allowing transmission into low-priority slots (improving resource availability) while maintaining strict protection for high-priority slots (preserving reception reliability).
Solution Approach 2:
The patent implements partial action by selectively adding back only low-priority time slots to the available resource pool, while maintaining exclusion of high-priority time slots. This partial restoration of resources resolves the contradiction by providing additional transmission opportunities through low-priority slots without compromising the reliability of high-priority reception. The system applies the resource addition action partially, targeting only appropriate candidates based on priority classification.
Data Source
AI summary
A UE determines a pool of resources for transmitting data from the UE to another UE over a number of time slots. The UE determines available resources from the pool of resources by excluding first one or more time slots from the number of time slots based on expected reception at the UE in the one or more time slots. The UE modifies the available resources by adding back a first set of time slots from the excluded time slots to the available resource based on a priority of the expected reception in the one or more time slots when a ratio of currently available resources to the pool of resources is less than a threshold. The UE transmits the data to the another UE on a resource selected from currently available resources of the pool.