Sidelink UE Resource Conflict Avoidance via Priority Lists
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in managing resource conflicts for sidelink positioning, particularly in 5G networks where higher data rates and lower latency are required for applications like vehicle-to-everything (V2X) communication.
Innovation Solution
The proposed solution involves a method for wireless communication where a sidelink user equipment (UE) receives a list of sidelink transmission resources prioritized for sidelink reference signal transmissions. The UE then selects a subset of these resources based on the priority order and transmits sidelink reference signal resources accordingly, while also managing resource reservations and detecting conflicts between sidelink reference signal transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple sidelink UEs transmit reference signals on the same resources, then resource utilization is improved, but resource conflicts and signal interference occur
Solution Approach 1:
The network entity pre-configures resource pools and priority levels for sidelink reference signal transmissions before actual communication occurs. UEs are assigned specific resource pools with defined priority levels, allowing them to select resources in advance without real-time conflicts. This preliminary arrangement ensures high resource utilization while maintaining signal reliability through pre-planned resource allocation.
Solution Approach 2:
Different resource pools are created with different priority levels and characteristics tailored to specific sidelink communication scenarios. High-priority reference signals receive dedicated resources with higher reliability guarantees, while lower-priority signals use shared resources. This local differentiation resolves conflicts by assigning appropriate resource quality to each transmission type.
2Measurement precision
If sidelink reference signals are transmitted on prioritized resources, then positioning accuracy is improved, but resource management complexity increases
Solution Approach 1:
Resource pools are segmented into multiple priority levels, with each pool dedicated to specific priority classes of sidelink reference signals. This segmentation allows the system to manage complexity by handling each priority level independently while ensuring positioning accuracy through dedicated high-priority resource allocation for critical positioning signals.
Solution Approach 2:
The network entity acts as an intermediary that pre-configures and manages the complex resource allocation rules, then communicates these configurations to UEs. This intermediary approach transfers the complexity management burden from individual UEs to the network, simplifying UE implementation while maintaining precise positioning through centrally-coordinated resource prioritization.
3Reliability
If resource pools are configured for periodic and aperiodic transmissions separately, then transmission reliability is improved, but configuration complexity increases
Solution Approach 1:
The resource pool configuration framework is designed to be universal, supporting both periodic and aperiodic sidelink reference signal transmissions through a unified configuration structure. By defining common parameters and rules that apply to both transmission types, the system achieves multi-functionality without proportionally increasing complexity, while maintaining reliability through consistent resource management across different transmission scenarios.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, a sidelink user equipment (UE) receives, from a first sidelink UE, a first list of a first set of sidelink transmission resources for transmission of sidelink reference signals by the sidelink UE, wherein sidelink transmission resources of the first set of sidelink transmission resources are listed in the first list in a first priority order, and transmits one or more sidelink reference signal resources on at least a subset of the first set of sidelink transmission resources, wherein the subset of the first set of sidelink transmission resources is selected based on the first priority order.