V2X Radio Resource Configuration via Base Station CBR Reference
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Solution Overview
Problem
In Vehicle to Everything (V2X) technologies, network congestion leads to challenges in measuring Channel Busy Ratio (CBR), resulting in UE's inability to select appropriate radio resource parameters, which hinders normal transmission of V2X service data, especially for pedestrians lacking PC5 receiving capability.
Innovation Solution
A method where UE acquires congestion control related information from a base station, another UE, or pre-configured data to determine radio resource parameters for the PC5 interface, allowing normal operation and congestion control even when CBR cannot be measured or its measurement load is reduced.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE measures CBR to select radio resource parameters, then transmission success rate is improved, but measurement complexity and time consumption increase
Solution Approach 1:
The base station pre-calculates and provides reference CBR values to UEs before actual transmission occurs. This allows UEs to directly use the provided reference values for resource parameter selection without performing complex real-time measurements themselves, thus improving transmission success rate while reducing measurement complexity.
2Measurement precision
If UE performs CBR measurement to determine radio resource parameters, then appropriate resource selection is improved, but time consumption and measurement load increase
Solution Approach 1:
The base station acts as an intermediary that performs CBR measurements and provides reference values to UEs. This mediator approach allows UEs to obtain accurate CBR information without performing measurements themselves, thus achieving precise resource parameter selection while minimizing time consumption at the UE side.
3Reliability
If network congestion control is implemented through CBR measurement, then transmission reliability is improved, but system complexity increases
Solution Approach 1:
The base station autonomously performs CBR measurements and generates reference values without requiring complex UE-side measurement mechanisms. This self-service approach at the network side simplifies the overall system architecture while maintaining reliable congestion control, as the complex measurement functions are centralized at the base station rather than distributed to multiple UEs.
Data Source
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AI summary
Disclosed is a method for configuring a radio resource. The method may comprise: acquiring channel busy ratio-based congestion control related information; determining radio resource parameters of a resource pool sent by a PC5 interface according to the congestion control related information; and sending vehicle to everything service data on the PC5 interface according to the radio resource parameters. Also disclosed is a computer storage medium