Sidelink Synchronization Signal Coordination for V2X Reliability
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Solution Overview
Problem
Current V2X communication systems face challenges in ensuring data transmission reliability on sidelinks, particularly in vehicle-to-everything (V2X) communications, where synchronization signals and service data signals need to be coordinated effectively to guarantee reliable reception, but existing methods fail to meet the required reliability standards.
Innovation Solution
The proposed communication method involves a first device sending indication information to indicate whether it sends a sidelink synchronization signal block in a synchronization slot, allowing the receiver to prepare for synchronization signal reception and data transmission, and configuring synchronization signal block resources and data resources to avoid overlap and ensure reliable data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If synchronization signal block resources and data resources are configured to overlap in time domain, then resource utilization is improved, but reception reliability deteriorates due to device switching time requirements
Solution Approach 1:
The patent segments the time-domain resources by introducing a time offset between synchronization signal block resources and data resources. This segmentation ensures that devices have sufficient switching time to transition between receiving synchronization signals and receiving data, thereby maintaining reception reliability while still achieving resource utilization through structured resource allocation.
2Measurement precision
If synchronization signals are transmitted in high-speed scenarios, then detection performance is improved through repetition, but resource consumption increases
Solution Approach 1:
The patent employs periodic transmission of synchronization signals with specific repetition patterns tailored for high-speed scenarios. By configuring periodic synchronization signal blocks with appropriate timing and repetition factors, the system achieves reliable detection performance in high-speed conditions while controlling resource consumption through optimized periodicity rather than continuous transmission.
Data Source
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AI summary
This application provides a communication method. The communication method includes: A first device sends indication information, where the indication information is used to indicate whether the first device sends a first synchronization signal block in a synchronization slot of a sidelink, and the synchronization slot is used to transmit a synchronization signal block; and the first device sends first data in the synchronization slot of the sidelink. Because the first device indicates a sending behavior of the first device in the synchronization slot before sending the first data, a receiver may determine a processing manner of the receiver in the synchronization slot based on the indication information. Therefore, a conflict between sending and receiving in the synchronization slot can be avoided, and information transmission reliability in the synchronization slot can be improved.