5G NR Sidelink Resource Selection Timing Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing NR Sidelink technology faces challenges in resource selection latency and reliability, particularly in Mode2 resource allocation, where the use of an auxiliary mechanism for resource selection introduces delays due to waiting for auxiliary information from other user equipment, which is not conducive to achieving low latency in 5G V2X communication scenarios.
Innovation Solution
A resource selection method that determines a first moment and a first time interval, setting a second moment as the starting point for resource selection, thereby restricting the timing and reducing the delay caused by auxiliary interactions, allowing direct resource selection without waiting for auxiliary information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the auxiliary mechanism for resource selection is used in Mode2, then the resource selection can consider information from other user equipment, but the latency increases due to waiting for auxiliary information
Solution Approach 1:
The patent applies preliminary action by determining a second moment that is separated from the first moment by a first time interval. This pre-scheduled timing mechanism allows the first device to perform resource selection at the predetermined second moment without waiting for auxiliary information from other user equipment, thereby reducing latency while maintaining the option to use auxiliary mechanisms when time permits
Solution Approach 2:
The patent introduces dynamic timing adjustment by allowing the first device to flexibly determine the first time interval based on its specific needs. The resource selection window can be dynamically positioned at the second moment, enabling the system to adapt between autonomous selection (when latency is critical) and auxiliary-based selection (when reliability is prioritized)
2Measurement precision
If resource selection waits for auxiliary information from other user equipment, then more accurate resource selection can be achieved, but the resource selection process becomes slower
Solution Approach 1:
The patent establishes a predetermined second moment for resource selection that is separated from the first moment by a first time interval. This preliminary timing arrangement enables the first device to perform resource selection autonomously at the second moment without waiting for auxiliary information, thereby improving resource selection speed while maintaining the option to incorporate auxiliary information if the time interval allows
Solution Approach 2:
The patent allows dynamic adjustment of the first time interval parameter based on system conditions. When low latency is required, the time interval can be set to enable autonomous selection at the second moment. When higher accuracy is needed and time permits, the interval can be extended to allow receipt of auxiliary information, thus dynamically balancing speed and precision
Data Source
AI summary
The present disclosure relates to a resource selection method, a resource selection device and a storage medium. The resource selection method comprises: determining a first moment and a first time interval; determining a second moment on the basis of the first moment and the first time interval, the second moment being at the first time interval from the first moment; and taking the second moment as a starting moment of a first device for resource selection, or a starting moment of a resource selection window of the first device.