V2X Terminal Resource Selection Using Service Feature Parameters
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Solution Overview
Problem
Current V2X communication resource selection methods result in significant transmission delays and unreliable service data transmission, particularly in scenarios where low-delay and high-reliability services are required.
Innovation Solution
A service data transmission method where a terminal obtains configuration information including service feature parameters and resource parameters, determines a suitable resource parameter based on these parameters, and selects an available resource for transmitting service data, thereby optimizing resource allocation to meet delay and reliability requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal autonomously selects a transmission resource in mode 4 without network assistance, then the terminal can operate independently without network access, but the transmission delay increases and service reliability cannot be ensured
Solution Approach 1:
The terminal performs preliminary actions by pre-selecting and reserving transmission resources based on service feature parameters before actual data transmission is needed. The terminal determines resource parameters in advance by listening to channel conditions and evaluating available resources, then selects and reserves resources that match the service requirements. This preliminary resource preparation eliminates the need for real-time resource selection during transmission, thereby reducing transmission delay while maintaining terminal independence in mode 4 operation.
2Adaptability or versatility
If a terminal autonomously selects a transmission resource in mode 4 without network assistance, then the terminal can operate independently without network access, but service reliability cannot be ensured
Solution Approach 1:
The terminal performs preliminary resource evaluation and selection based on service feature parameters before transmission. By assessing channel conditions, identifying suitable resources in advance, and reserving resources that match service requirements, the terminal ensures reliable transmission resources are ready before data arrives, thereby ensuring service reliability while maintaining independence.
Solution Approach 2:
The terminal implements a feedback mechanism by continuously monitoring channel conditions and resource availability. The terminal evaluates channel listening status, assesses the suitability of available resources against service feature parameters, and adjusts resource selection decisions based on this feedback. This closed-loop approach enables the terminal to adapt to changing channel conditions and maintain high service reliability through informed resource selection.
3Ease of operation
If the physical layer reports available resources to the higher layer for random selection, then the terminal can simplify the resource selection process, but the transmission delay increases and low-delay service requirements cannot be satisfied
Solution Approach 1:
The physical layer performs preliminary resource evaluation and identification of suitable resources based on service feature parameters before the higher layer needs to make selection decisions. Instead of the higher layer randomly selecting from all available resources, the physical layer pre-identifies and reports only those resources that match the service requirements. This preliminary filtering reduces the higher layer's selection complexity while enabling faster resource acquisition, thereby reducing transmission delay.
Solution Approach 2:
The invention changes the parameter basis for resource selection from random selection to parameter-driven selection. The physical layer evaluates resources based on service feature parameters (such as delay requirements, reliability requirements, channel conditions) and reports resources that match these parameters. This parameter-based filtering transforms the selection process from a simple random choice to a targeted selection that satisfies service requirements, reducing both delay and complexity.
Data Source
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AI summary
This application provides a service data transmission method and apparatus, and the method includes: obtaining first configuration information, where the first configuration information includes a first service feature parameter and a first resource parameter corresponding to the first service feature parameter; obtaining to-be-sent service data and a second service feature parameter corresponding to the to-be-sent service data; determining, based on the first service feature parameter, the second service feature parameter, and the first resource parameter, a second resource parameter for transmitting the to-be-sent service data; selecting, based on the second resource parameter, an available resource for transmitting the to-be-sent service data; and transmitting the to-be-sent service data by using the available resource. In this way, the service feature parameter of the service data is considered while the available resource is determined, to determine the resource parameter based on the service feature parameter, thereby better satisfying a delay requirement of a low-delay service.