5G NR Sidelink Sensing Reports for Event-Triggered Resource Sharing
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Solution Overview
Problem
Existing 3GPP Release 16 sidelink communication systems face challenges in efficiently utilizing cooperative sensing results among multiple UEs while ensuring power savings, particularly in Mode 2 operations, without establishing direct connections between them.
Innovation Solution
A sensing measurement and report mechanism that enables UEs to utilize sensing results from other UEs through configured linkage information for sidelink resources, allowing efficient resource allocation and power savings by transmitting sensing result messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UEs transmit sensing result messages to share cooperative sensing information, then resource allocation efficiency is improved and resource collision probability is reduced, but power consumption increases due to additional transmission activities
Solution Approach 1:
The patent changes the parameter of transmission activation from continuous to conditional by introducing trigger events (resource selection, reselection, or when sensing results change). This parameter change allows the system to achieve improved resource allocation efficiency through sensing result sharing while reducing power consumption by transmitting only when necessary rather than continuously
Solution Approach 2:
The patent implements a self-service mechanism where UEs autonomously determine when to transmit sensing results based on pre-configured triggering conditions. Each UE monitors its own resource selection status and sensing result changes, and automatically initiates transmission when conditions are met, eliminating the need for continuous network coordination and reducing overall power consumption
2Reliability
If UEs continuously monitor and share sensing results, then resource collision probability is reduced, but device complexity increases due to continuous monitoring and message exchange requirements
Solution Approach 1:
The patent implements periodic action by triggering sensing result transmissions only at specific events (resource selection, reselection, or sensing result changes) rather than continuous monitoring. This event-driven approach maintains reliability by ensuring sensing information is shared at critical decision points while significantly reducing device complexity by eliminating the need for continuous monitoring and message exchange mechanisms
3Productivity
If sensing report configuration information is established with linkage among sidelink resources, sensing result request resources, and sensing result report resources, then resource allocation efficiency is improved, but device complexity increases due to configuration management overhead
Solution Approach 1:
The patent applies preliminary action by pre-configuring the linkage information among sidelink resources, sensing result request resources, and sensing result report resources before actual sensing operations begin. This preliminary configuration establishes the framework for efficient resource allocation while reducing device complexity during operation, as UEs simply follow the pre-defined linkage rules rather than dynamically managing complex configurations in real-time
Data Source
AI summary
The present application is related to a method and apparatus for sensing measurement and report for 3GPP (3rd Generation Partnership Project) 5G new radio (NR) sidelink (SL). A method for wireless communications performed by user equipment (UE) includes: receiving sensing report configuration information, and the sensing report configuration information includes linkage information among a set of sidelink resources for the UE, a sensing result request resource, and a sensing result report resource; determining, based on the sensing report configuration information, whether to transmit a sensing result message; and in response to a determination of transmitting the sensing result message, transmitting the sensing result message.