Wireless Terminal Resource Selection for Vehicle Communication
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Solution Overview
Problem
In 5G wireless communication systems, there is a challenge in efficiently determining radio resources for vehicle communication systems to ensure high reliability and low latency, particularly in preventing resource selection collisions in shared radio resource pools.
Innovation Solution
A method and device for selecting radio resources in a wireless communication system, where a terminal receives information on a resource pool for vehicle communication from a base station, determines candidate resources, and transmits data using those resources, thereby preventing resource selection collisions and ensuring efficient resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple terminals autonomously select resources from a shared resource pool, then resource utilization efficiency is improved, but resource selection collisions occur leading to reduced reliability
Solution Approach 1:
The terminal performs sensing operations to detect resource usage status of other terminals before selecting resources. This feedback mechanism allows terminals to adjust their resource selection based on detected collisions or busy resources, thereby avoiding collisions and improving transmission reliability while maintaining efficient resource utilization
Solution Approach 2:
The terminal performs sensing operations in advance before finalizing resource selection. By detecting the usage status of shared resources beforehand, the terminal can preliminarily identify suitable resources and avoid potential collisions, ensuring both efficient utilization and high reliability
2Measurement precision
If terminals perform sensing operations to detect resource usage status, then resource selection accuracy is improved, but transmission latency increases
Solution Approach 1:
The terminal performs partial sensing operations on a subset of resources rather than all available resources. This selective sensing approach maintains adequate resource selection accuracy while reducing the time consumed by sensing operations, thereby minimizing transmission latency
Solution Approach 2:
The resource pool is divided into multiple segments or groups, and the terminal performs sensing operations on specific segments rather than the entire pool. This segmentation allows parallel or sequential sensing of smaller portions, improving accuracy for selected resources while reducing overall sensing time and latency
3Productivity
If a shared resource pool is used for vehicle communication, then network resource efficiency is improved, but resource selection collisions occur
Solution Approach 1:
The sensing operation provides feedback information about the usage status of shared resources. Terminals use this feedback to identify and avoid resources that are currently being used by other terminals, thereby preventing collisions while maintaining efficient utilization of the shared resource pool
Solution Approach 2:
The sensing operation acts as an intermediary mechanism between multiple terminals accessing the shared resource pool. It provides indirect information about resource usage status, allowing terminals to make informed decisions without direct interference, thus preventing collisions while maintaining efficiency
Data Source
AI summary
An operation method of a terminal in a wireless communication system includes receiving, from a base station, a message including information on a resource pool for vehicle communication and information for selecting a resource from the resource pool; determining candidate resources in the resource pool on the basis of the information for selecting the resource; and transmitting data by using at least one resource among the candidate resources.