Antenna Panel Synchronization Signal Block Transmission for V2V Orientation
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Solution Overview
Problem
In vehicle-to-everything (V2X) technology, determining the relative orientation between vehicle user equipments (VUEs) is crucial for ensuring driving safety, but existing methods lack effective solutions for direct wireless information exchange without relying on base stations.
Innovation Solution
A synchronization signal block sending and receiving method where a first terminal determines and sends synchronization signal blocks corresponding to different antenna panels, allowing a second terminal to determine the relative orientation by identifying the antenna panel with the strongest signal, using a correspondence between antenna panel locations and synchronization signal blocks, including primary and secondary synchronization signals, and resource mapping modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If synchronization signal blocks are sent using multiple antenna panels at different locations, then the measurement precision of relative orientation determination is improved, but the device complexity increases
Solution Approach 1:
The transmitting terminal divides its antenna system into multiple antenna panels located at different positions (e.g., front, rear, left, right sides of the vehicle). Each antenna panel independently transmits synchronization signal blocks, enabling the receiving terminal to determine the relative orientation by identifying which antenna panel's signal is strongest, thus achieving accurate orientation measurement through spatial segmentation of the antenna system.
2Productivity
If multiple synchronization signal blocks are transmitted simultaneously from different antenna panels, then the productivity of information exchange is improved, but the loss of time for signal processing increases
Solution Approach 1:
The transmitting terminal pre-configures multiple antenna panels at different spatial locations before communication begins. Each antenna panel is positioned to cover specific directional sectors, allowing the receiving terminal to quickly determine relative orientation by comparing signal strengths from different panels without needing to perform time-consuming beam scanning, thus reducing time loss while maintaining high information exchange productivity.
Data Source
AI summary
A synchronization signal block sending and receiving method and apparatus are described. The method includes a first terminal determining, based on a correspondence between information about locations of M antenna panels and P synchronization signal blocks of the first terminal and information about locations of N antenna panels, a synchronization signal block corresponding to each of the N antenna panels, where the information about the locations of the M antenna panels is used to indicate the locations of the M antenna panels on the first terminal, the N antenna panels are included in the M antenna panels, N is less than or equal to M, M, N and P are positive integers, and P is an integer multiple of M. Then, the first terminal separately sends, by using each of the N antenna panels, the synchronization signal block corresponding to each of the N antenna panels. This application is applicable to a V2V scenario.