V2X Sidelink QoS Identifier Resource Allocation
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Solution Overview
Problem
Current V2X communication systems using 3GPP cellular technology face challenges in meeting quality of service requirements for sidelink data transmission, as the resources scheduled by network devices often fail to meet the necessary standards.
Innovation Solution
A communication method where terminal devices send identifiers corresponding to quality of service (QoS) parameters to network devices, allowing the network to dynamically or semi-dynamically allocate resources that meet specific QoS requirements, such as reliability, latency, and data rate, for sidelink communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network device scheduling mode is used for sidelink communication, then resource allocation is centralized and controllable, but the scheduled resources cannot meet the quality of service requirements of sidelink data transmission
Solution Approach 1:
The patent implements dynamic resource selection by terminals based on QoS parameters. Terminals independently select scheduling resources from a configured resource pool according to the QoS requirements of different data, enabling flexible adaptation to varying service demands while ensuring both reliability and transmission efficiency
Solution Approach 2:
The patent applies different QoS parameters to different data streams or services. By configuring specific QoS requirements (such as latency, reliability, data rate) for different types of sidelink data, the system ensures that each data stream receives appropriate resource allocation tailored to its specific quality of service needs
2Loss of information
If QoS parameters are directly transmitted, then complete quality of service information is provided, but transmission overhead increases
Solution Approach 1:
The patent uses QoS parameter indicators or identifiers that reference predefined QoS parameter sets. Instead of transmitting complete QoS parameter information, the system transmits compact indicators that point to stored configurations, significantly reducing overhead while preserving complete quality of service information
Solution Approach 2:
The patent pre-configures QoS parameter sets and resource pool configurations in advance through network configuration messages. This preliminary setup allows terminals to efficiently select appropriate resources based on pre-defined QoS profiles without needing to negotiate or transmit detailed QoS parameters for each transmission
Data Source
AI summary
The present disclosure relates to communication methods and related devices. One example method is applied to a terminal device, and the method includes obtaining first data and a quality of service (QoS) parameter corresponding to the first data, where the QoS parameter includes at least one of reliability information, latency information, communication distance information, data rate information, or service type information, and sending an identifier to a network device, where the identifier corresponds to the QoS parameter.