Sidelink Resource Set Configuration via Frame Synchronization
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing and configuring sidelink communication resources, particularly in vehicle-to-everything (V2X) scenarios, where resource allocation and synchronization are crucial for power saving and reliable data transmission.
Innovation Solution
The implementation of a method where user equipment (UE) negotiates with another UE to select a communication resource set (ComReSet) with specific periodicity for sidelink communication, using frame timing synchronized with the ComReSet's periodicity, and reserves time slots for efficient resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sidelink communication resources are allocated without frame synchronization, then resource allocation flexibility is improved, but power consumption increases and transmission reliability deteriorates
Solution Approach 1:
The patent implements frame-based periodic synchronization where UEs align their sidelink communication resources to periodic frame structures. This periodic action allows devices to enter sleep modes between synchronized frames, reducing power consumption while maintaining flexible resource allocation within each frame structure.
Solution Approach 2:
The patent enables dynamic resource selection within the constrained frame structure. UEs can dynamically negotiate and select specific time-frequency resources within each synchronized frame, providing flexibility while the overall frame synchronization ensures power saving through predictable periodic patterns.
2Adaptability or versatility
If sidelink communication resources are allocated without frame synchronization, then resource allocation flexibility is improved, but transmission reliability deteriorates
Solution Approach 1:
Frame-based periodic synchronization establishes regular communication intervals where UEs know when to expect transmissions. This periodic structure improves reliability by ensuring consistent timing for resource allocation while still allowing flexible resource selection within each periodic frame.
Solution Approach 2:
The patent implements feedback mechanisms where UEs exchange synchronization information and resource allocation confirmations within the frame structure. This feedback ensures both UEs are aligned on resource usage, improving transmission reliability while maintaining allocation flexibility.
3Reliability
If multiple ComReSets are used for sidelink communication, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent divides communication resources into multiple ComReSets segmented by different periodicities (e.g., 10ms, 20ms, 40ms frames). This segmentation allows UEs to select appropriate ComReSets based on traffic requirements, improving reliability through diversity while managing complexity through structured organization.
Solution Approach 2:
The patent uses parameter changes in ComReSet configurations (different periodicities, time offsets, frequency allocations) to provide multiple communication options. UEs can negotiate and switch between ComReSets with different parameters to optimize reliability without requiring complex simultaneous management of all configurations.
Data Source
AI summary
Aspects enable and provide techniques for sidelink communication resource configuration and management. A first user equipment (UE) negotiates with a second UE to select a first communication resource set (ComReSet) from a plurality of ComReSets for sidelink communication. Each of the plurality of ComReSets has a corresponding periodicity of one or more hyper-frames. The first UE communicates with the second UE using the first ComReSet using a frame timing synchronized with the corresponding periodicity of the first ComReSet.