Sidelink Resource Pool Dynamic Adjustment via Channel Busy Ratio
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current communication systems face inefficiencies in resource allocation for sidelink communications, leading to resource waste and congestion due to fixed resource pools that do not adapt to varying vehicle and service demands in different zones.
Innovation Solution
A method where terminals measure sidelink resources and report measurement results to access network equipment, allowing for dynamic adjustment of sidelink resource pools based on channel busy ratios, ensuring optimal resource allocation according to current demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fixed resource pools are allocated for sidelink communications, then resource allocation is simplified and stable, but resource utilization efficiency deteriorates due to inability to adapt to varying demands in different zones
Solution Approach 1:
The patent implements dynamic resource pool configuration by allowing the network to adjust sidelink resource pools based on channel busy ratio measurements from different zones. Instead of fixed allocation, the system continuously adapts resource allocation to match actual traffic demands, transforming the static resource pool into a dynamic structure that responds to real-time conditions.
Solution Approach 2:
The patent changes the parameter of resource pool configuration from fixed to variable based on channel busy ratio thresholds. When CBR exceeds certain thresholds, the network modifies resource pool parameters (such as resource availability, frequency ranges, or time slots) to prevent congestion, thereby optimizing resource utilization efficiency through parameter adjustment.
2Adaptability or versatility
If zone-based resource allocation is implemented, then resource allocation adapts to local demands, but measurement and configuration complexity increases
Solution Approach 1:
The patent divides the coverage area into multiple zones and allocates different sidelink resource pools to each zone based on their specific channel conditions and traffic demands. This segmentation allows the system to adapt to local variations in demand while managing complexity through structured zone-based organization rather than unmanaged individual configurations.
Solution Approach 2:
The patent implements a feedback mechanism where terminals measure channel busy ratios in their respective zones and report these measurements to the network. The network uses this feedback information to dynamically adjust resource pool configurations, creating a closed-loop system that adapts to changing conditions while maintaining manageable complexity through automated decision-making based on threshold comparisons.
3Loss of energy
If dynamic resource adjustment is performed, then resource waste and congestion are reduced, but signaling overhead and processing time increase
Solution Approach 1:
The patent employs periodic resource adjustment based on channel busy ratio measurements rather than continuous real-time adjustments. The system monitors CBR periodically and triggers resource pool reconfiguration only when thresholds are exceeded, reducing processing time and signaling overhead while still effectively preventing resource waste and congestion through timed interventions.
Solution Approach 2:
The patent optimizes the balance between resource waste reduction and processing time by changing parameters such as CBR thresholds, measurement periods, and adjustment triggers. By carefully selecting these parameters, the system achieves effective congestion prevention without excessive signaling overhead, as adjustments occur only when truly necessary rather than continuously.
Data Source
AI summary
A direct communication link measurement method and apparatus, a device, and a storage medium, pertaining to the field of communications. The method comprises: an access network device sending area measurement information to a terminal; the terminal receiving the area measurement information; when located in an area corresponding to an area identifier, the terminal measuring, at a corresponding frequency, a direct communication link resource, and acquiring a measurement result; the terminal reporting the area identifier and the measurement result to the access network device; the access network device receiving the area identifier and the measurement result; and the access network device configuring, according to the measurement result, the direct communication link resource in the area corresponding to the area identifier.