Receiver-Aware Sidelink Resource Selection for Reliable V2X Data
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Solution Overview
Problem
Existing vehicle-to-everything (V2X) communication systems face issues with resource allocation conflicts between sender and receiver terminals, leading to poor data reception quality due to mismatched signal strengths and interference, despite efforts to improve power consumption and latency.
Innovation Solution
A method where a first terminal determines sidelink resources for a second terminal by considering the transmission status of the second terminal, avoiding conflicts by selecting resources that do not overlap with the second terminal's transmissions, using various time periods and capabilities to ensure reliable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiver terminal recommends sidelink resources based on its own transmission considerations, then the receiver terminal can ensure its own transmission quality, but the recommended resources may conflict with the sender terminal's transmission needs
Solution Approach 1:
The patent introduces a resource determination method that acts as an intermediary mechanism between the sender terminal and receiver terminal. The first terminal (sender) determines available sidelink resources by obtaining transmission information from the second terminal (receiver), effectively mediating the resource selection process to ensure compatibility between both terminals' transmission needs without requiring direct coordination conflicts
2Productivity
If the sender terminal selects sidelink resources without considering the receiver terminal's transmission status, then the selection process is simple and fast, but resource conflicts occur leading to poor data reception quality
Solution Approach 1:
The patent implements preliminary action by having the first terminal obtain transmission information from the second terminal before determining the final sidelink resources. This preliminary step of gathering transmission status information allows the sender terminal to pre-identify potential conflicts and select resources that ensure both fast selection and reliable data reception, avoiding post-selection conflicts
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3~4
AI summary
Embodiments of this application provide a resource determining method, an apparatus, and a system, and relate to the communication field, to avoid a conflict between transmission of a second terminal and a sidelink resource that is selected by a first terminal and that is used to send a service to the second terminal or that is selected for the second terminal and that is used to send a service. The solution includes: The first terminal obtains transmission information that is used to determine a transmission status of the second terminal. The first terminal determines one or more sidelink resources based on the transmission status, where the sidelink resource may be used by the second terminal to send data, or the sidelink resource may be used to carry a service sent to the second terminal. The first terminal sends first information to the second terminal, or the first terminal sends the service to the second terminal on a first sidelink resource in the one or more sidelink resources. The solution may be applied to the fields such as unmanned driving, autonomous driving, assisted driving, intelligent driving, connected driving, intelligent connected driving, and car sharing.