Pedestrian V2X UE Power-Efficient Resource Selection
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Solution Overview
Problem
Current V2X communication systems face challenges in efficiently managing radio resources, particularly for pedestrian-borne wireless terminals (P-UEs) sharing resources with vehicle-borne wireless terminals (V-UEs), due to differences in service requirements and Quality of Service (QoS), leading to power consumption issues and suboptimal resource selection strategies.
Innovation Solution
A method and apparatus for a pedestrian-related V2X user equipment (UE) that receives system information to determine whether to perform random selection or sensing, and selects radio resources based on specific parameters for autonomous resource utilization, including the use of pre-configured parameters for V2P/P2V modes to optimize power-saving operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pedestrian UEs perform sensing operations to select radio resources autonomously, then resource selection reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting sensing operation parameters (such as sensing window size, measurement frequency, and resource pool configuration) based on pedestrian UE mobility patterns and traffic conditions. This allows the system to maintain reliable resource selection while optimizing power consumption by reducing sensing intensity when high reliability is not critical.
Solution Approach 2:
The patent implements dynamics by enabling pedestrian UEs to adaptively switch between different resource selection modes (sensing-based vs. random selection) and adjust sensing operation parameters in real-time based on changing environmental conditions, mobility state, and power availability. This dynamic adaptation resolves the contradiction by matching resource selection reliability to actual operational needs rather than maintaining constant high-level sensing.
2Productivity
If pedestrian UEs and vehicle UEs share the same resource pool, then resource utilization efficiency is improved, but service quality differentiation deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the shared resource pool into logical sub-pools or resource sets that can be differentially allocated to pedestrian UEs and vehicle UEs based on service requirements. This allows efficient overall resource utilization while maintaining quality differentiation through targeted resource allocation to different UE types within the same physical resource pool.
Solution Approach 2:
The patent implements local quality by applying different resource selection parameters, sensing configurations, and allocation strategies to different portions of the resource pool or to different UE types within the same pool. This enables tailored resource management that maintains service quality differentiation for V2V communications while allowing efficient resource sharing for V2P communications.
3Reliability
If pedestrian UEs perform full sensing operations, then packet reception ratio is improved, but power efficiency deteriorates
Solution Approach 1:
The patent applies partial action by implementing reduced sensing operations for pedestrian UEs that perform only essential sensing functions rather than full sensing. This includes selective sensing of critical resources, abbreviated sensing windows, and targeted measurements that maintain adequate packet reception ratio while significantly reducing power consumption compared to full sensing operations.
Solution Approach 2:
The patent implements self-service by enabling pedestrian UEs to autonomously determine their own sensing requirements and adjust sensing intensity based on their specific mobility patterns, power availability, and traffic conditions. This self-adaptive approach optimizes the balance between packet reception ratio and power efficiency without requiring continuous network control or full sensing operations.
Data Source
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AI summary
A pedestrian related vehicle-to-Everything (V2X) user equipment (UE) which comprises: receiving circuitry configured to receive system information which contains a parameter set for pedestrian related V2X communications; and controlling circuitry configured to determine, based on the parameter set, whether the pedestrian relatedV2X UE performs random selection or the pedestrian relatedV2X UE performs sensing.