Sidelink Resource Selection With Adaptive Sensing for Lower Power
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Solution Overview
Problem
Existing sidelink communication technologies, particularly in 5G V2x, face challenges in power consumption due to aperiodic resource reservation, necessitating new methods to reduce energy consumption while ensuring effective resource selection for vehicular communication.
Innovation Solution
A method for selecting resources in sidelink communication that involves determining time units satisfying specific sensing conditions, allowing devices to selectively perform channel sensing based on thresholds and priorities, thereby reducing unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If aperiodic resource reservation is implemented in sidelink communication, then resource allocation flexibility is improved, but power consumption increases
Solution Approach 1:
The patent changes the parameter of sensing performance requirements based on service types. Different QoS parameters (priority, packet delay budget, reliability) are mapped to different sensing performance levels, allowing the system to adjust sensing intensity dynamically rather than maintaining high sensing performance for all services, thus reducing power consumption while maintaining flexibility
Solution Approach 2:
The patent introduces dynamic adjustment of sensing performance requirements according to service characteristics. The sensing configuration is not static but adapts to different service types and QoS requirements, enabling the system to optimize power consumption based on actual communication needs while maintaining resource allocation flexibility
2Reliability
If channel sensing is performed frequently to ensure reliable resource selection, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent maps QoS parameters to sensing performance requirements, allowing the system to adjust sensing intensity based on actual communication needs. For services with lower reliability requirements, sensing can be performed less frequently, reducing power consumption while maintaining adequate communication reliability
Solution Approach 2:
The patent applies partial sensing action by performing sensing at different intensities based on service requirements. Not all services require full sensing performance, so the system performs only the necessary amount of sensing needed to achieve the required reliability level, avoiding excessive power consumption
3Reliability
If resource selection window is extended to provide more candidate resources, then resource selection reliability is improved, but communication delay increases
Solution Approach 1:
The patent adjusts the resource selection window size based on QoS parameters and service types. For services with strict delay requirements, the window size is optimized to provide sufficient candidate resources without extending the selection time too long, thus balancing reliability and delay
Solution Approach 2:
The patent introduces dynamic adjustment of resource selection window parameters according to service characteristics and channel conditions. The window size is not fixed but adapts to different scenarios, allowing the system to optimize both resource selection reliability and communication delay based on actual needs
Data Source
AI summary
A method and apparatus for resource selection during direct communication, an electronic device and a storage medium, which relate to the technical field of communications. The method may comprise: according to a time unit set corresponding to resources used for direct communication, determining at least one first time unit that satisfies a monitoring condition, the time unit set comprising one or more first time units; and according to the resources corresponding to the first time unit that satisfies the monitoring condition, determining a resource used for transmitting data to be sent. On the basis of the described method, the requirements for wireless communication can be better met.