Sidelink Resource Sensing Payload Reduction via Differential Reporting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face inefficiencies in resource allocation and increased payload sizes due to half-duplex operations and collisions in sidelink networks, leading to decreased throughput and increased latency.
Innovation Solution
Implementing a method where user equipment (UEs) select and report resource availability using optimized reporting patterns, allowing for differential quantization levels and reduced payload sizes by autonomously or centrally determining which resources to measure and report, thereby improving resource utilization and reducing signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If UEs report resource availability for all sidelink channel resources with full resolution, then measurement precision is improved, but payload size increases
Solution Approach 1:
The patent divides the set of sidelink channel resources into multiple subsets, where each subset is reported with a different resolution. Some resources are reported with full resolution while others use reduced resolution or are omitted entirely. This segmentation allows the system to maintain measurement precision for critical resources while reducing overall payload size by applying differential quantization across resource subsets.
Solution Approach 2:
The patent applies different reporting resolutions to different local regions (subsets) of resources based on their importance or characteristics. High-priority resources receive full resolution reporting while lower-priority resources use reduced resolution. This local quality approach optimizes the balance between measurement precision and payload size by tailoring the reporting detail to the specific needs of each resource subset.
2Loss of information
If UEs transmit detailed sensing reports for all measured resources, then information completeness is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts and reports only the most essential sensing information for each resource subset, rather than transmitting complete detailed measurements for all resources. By selecting and reporting only critical metrics for specific resource subsets, the system maintains sufficient information completeness for resource allocation decisions while significantly reducing signaling overhead.
Solution Approach 2:
The patent applies partial action by reporting sensing information for only a subset of resources at full detail, while using reduced or no reporting for other resources. This partial approach to information transmission maintains adequate sensing report quality for critical resources while reducing overall signaling overhead by avoiding redundant or less important information transmission.
3Measurement precision
If UEs perform sensing on all sidelink resources, then resource allocation accuracy is improved, but power consumption increases
Solution Approach 1:
The patent segments the sensing process into different levels of detail corresponding to different resource subsets. UEs perform comprehensive sensing on high-priority resources while using reduced or no sensing on lower-priority resources. This segmented sensing approach maintains resource allocation accuracy for critical resources while reducing overall power consumption by avoiding exhaustive sensing of all resources.
Solution Approach 2:
The patent changes the sensing parameter intensity based on resource priority or characteristics. For high-priority resources, full sensing with high measurement accuracy is performed, while for lower-priority resources, reduced sensing with lower measurement accuracy is applied. This parameter change in sensing effort optimizes the balance between resource allocation accuracy and power consumption by adapting sensing intensity to resource importance.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may sense and report resource availability using a reporting pattern to manage a payload size of a reporting message. A sensing pattern may indicate a pattern of resources of a sidelink channel that is being reported in the reporting message (e.g., and one or more sidelink channel resources not being reported), and a resolution of resource availability statuses reported for a first subset of resources of a sidelink channel. A base station or another UE may indicate which reporting pattern (e.g., from a set of configured patterns) that a UE is to use for sensing and generating the sensing report. The UE may autonomously select the reporting pattern, and may transmit an indication of the pattern to the receiving UE.