V2X Handover Selection Using Air-Interface and Sidelink Information
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Solution Overview
Problem
Conventional methods for determining target network devices in 5G-based internet of vehicles fail to adequately meet both air interface link and sidelink communication requirements, leading to reduced communication effectiveness.
Innovation Solution
A communication method where a source network device considers both air interface link signal information and sidelink information of neighboring network devices to determine a target network device for handover, using various types of sidelink information and capability information to ensure compatibility and suitability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the source network device determines the target network device based only on air interface link signal information, then the handover process is simple and fast, but the target network device may not meet sidelink communication requirements
Solution Approach 1:
The patent combines air interface link signal information and sidelink information into a unified handover determination process. The source network device evaluates both types of information together to select a target network device that satisfies both air interface link communication requirements and sidelink communication requirements, resolving the contradiction between simple handover process and adaptability to sidelink requirements.
Solution Approach 2:
The patent introduces sidelink information as an additional parameter in the handover determination process. By changing the parameters considered for handover decision from only air interface link signal information to include sidelink information, the system achieves better adaptability to sidelink communication requirements while maintaining a relatively simple determination process.
2Reliability
If the source network device considers both air interface link signal information and sidelink information to determine the target network device, then the communication requirements are better met, but the determination process becomes more complex
Solution Approach 1:
The patent segments the handover determination process into distinct evaluation components: air interface link signal information evaluation and sidelink information evaluation. The source network device separately processes these two types of information and then integrates the results to determine the target network device. This segmentation approach improves reliability by thoroughly meeting communication requirements while managing complexity through structured processing.
3Productivity
If conventional handover methods are used, then the handover process is fast and simple, but communication effectiveness is reduced
Solution Approach 1:
The patent performs preliminary evaluation of sidelink information before final handover determination. The source network device pre-processes sidelink information and integrates it with air interface link signal information in advance, enabling a comprehensive yet efficient handover decision. This preliminary action ensures communication effectiveness is maintained while preserving handover process efficiency.
Data Source
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AI summary
Embodiments of this application disclose a communication method and a related communication device, and may be applied to internet of vehicles, for example, communication between V2X devices. The method in the embodiments of this application includes: A source network device receives air interface link signal information of neighboring network devices from a terminal device, and then determines a target network device based on sidelink information of the terminal device and the air interface link signal information of the neighboring network devices. Then, the source network device may send a handover request to the target network device, so that the terminal device can be handed over from the source network device to the target network device. Therefore, the target network device determined by the source network device can better meet an air interface link communication requirement and a sidelink communication requirement of the terminal device.