LTE V2X Carrier Resource Selection via Service Requirements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is no effective solution for selecting resources in a carrier that supports a UE's service in LTE V2X communication, where resource configuration information is provided through dedicated signaling, but no method is specified for selecting resources that meet the service requirements for transmission.
Innovation Solution
A method that determines available resources meeting the service requirements by forming a resource pool and selecting target resources from it, using high-layer signaling to identify suitable carriers based on service types and priorities, and ensuring resource availability by monitoring and adjusting signal power thresholds to minimize collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If resource configuration information is provided through dedicated signaling in LTE V2X, then the system can support multiple carriers, but there is no solution specified for how to select resources in the carrier that supports the UE's service
Solution Approach 1:
The UE autonomously selects carriers and resources based on service requirements without requiring network instruction. The terminal independently determines which carrier to use and selects appropriate time-frequency resources from the resource pool, eliminating the need for complex network-controlled resource allocation while maintaining multi-carrier flexibility
Solution Approach 2:
The patent introduces service requirement parameters (service type, priority, periodicity) as selection criteria. The UE changes the selection parameters based on the specific service needs, dynamically adjusting carrier and resource selection to match service characteristics such as high reliability requirements or low latency needs
2Adaptability or versatility
If the UE selects resources autonomously based on service requirements, then resource selection flexibility is improved, but the complexity of resource management increases
Solution Approach 1:
The resource selection process is segmented into distinct steps: first selecting the carrier based on service requirements, then selecting time-frequency resources from the resource pool on that carrier. This segmentation simplifies the overall complexity by breaking down the resource management task into manageable, sequential decisions rather than requiring simultaneous optimization across multiple dimensions
Solution Approach 2:
The network pre-configures resource pools on multiple carriers before the UE needs to transmit. This preliminary action eliminates the need for real-time resource pool creation and simplifies UE operation to merely selecting from pre-prepared resources, reducing operational complexity while maintaining flexibility
3Reliability
If multiple carriers are configured for V2X communication, then service reliability can be improved, but resource collision probability increases without proper selection mechanism
Solution Approach 1:
Different carriers are selected based on local service requirements such as priority level and periodicity. High-priority services with strict reliability requirements are directed to carriers with more available resources or better channel conditions, while lower-priority services use other carriers. This local optimization minimizes resource collisions by matching service characteristics with appropriate carrier characteristics
Data Source
Figure 1~3
AI summary
Disclosed by the present application are a method and device for selecting resources in a carrier wave, the method comprising: according to the service requirements for a service to be sent, determining available resources in a carrier wave that supports the service to be sent that satisfy the service requirements; and forming a resource pool by means of the available resources; and selecting from the resource pool a target resource that is used to send the service to be sent.