Dynamic Antenna Selection for Continuous Sector Handover
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Solution Overview
Problem
Existing methods for selecting antennas in communication networks between command stations and mobile devices, such as drones, often result in communication interruptions when the device moves between predefined sectors, leading to unreliable data transmission.
Innovation Solution
A method and system that dynamically select the antenna with the highest communication quality using a time division multiple access technique, involving acquisition and pursuit modes to ensure continuous and interruption-free communication by assessing the quality of communication for each antenna and switching to the best available one.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a method for selecting an antenna is used to maintain communication between command station and mobile device, then communication reliability is improved, but the method does not allow continuous and interruption-free monitoring of device movement
Solution Approach 1:
The patent implements dynamic antenna selection by continuously evaluating signal quality metrics (RSSI, SINR) from multiple sector antennas and switching to the antenna providing the best communication quality. This dynamic adaptation ensures uninterrupted monitoring of mobile device movement while maintaining reliable communication, resolving the contradiction between communication reliability and monitoring continuity.
Solution Approach 2:
The system uses feedback from signal quality measurements (RSSI, SINR) received from mobile devices to automatically select the optimal antenna. This closed-loop feedback mechanism enables continuous monitoring without communication interruptions, as the system adapts antenna selection based on real-time communication quality information.
2Length of stationary object
If directional sector antennas are used to increase gain and range, then communication range is improved, but communication interruptions occur when device moves between predefined sectors
Solution Approach 1:
The patent implements dynamic antenna selection by continuously evaluating signal quality metrics (RSSI, SINR) from multiple sector antennas and switching to the antenna providing the best communication quality. This dynamic adaptation ensures uninterrupted monitoring of mobile device movement while maintaining reliable communication, resolving the contradiction between communication reliability and monitoring continuity.
Solution Approach 2:
The system combines multiple sector antennas into a coordinated system where each antenna covers a predefined sector, and the selection logic merges information from all antennas to determine the optimal serving antenna. This merging approach maintains the directional gain benefits while eliminating coverage gaps at sector boundaries.
3Reliability
If antenna switching is implemented to follow mobile device movement, then data transmission reliability is improved, but system complexity increases
Solution Approach 1:
The mobile device itself provides feedback information (RSSI, SINR measurements) that enables the command station to automatically select the optimal antenna without complex external monitoring systems. This self-service approach improves data transmission reliability while keeping the system complexity manageable by leveraging the device's own measurement capabilities.
Solution Approach 2:
The system uses feedback from signal quality measurements (RSSI, SINR) received from mobile devices to automatically select the optimal antenna. This closed-loop feedback mechanism enables continuous monitoring without communication interruptions, as the system adapts antenna selection based on real-time communication quality information.
Data Source
AI summary
An antenna in a system is provided and includes a first device and at least one second mobile device, where the first device communicates with the second device(s). In an acquisition mode, for each antenna of an antenna system, a first item of communication quality information is obtained, and the antenna the first item of information of which is the highest is selected. In a pursuit mode, if the selected antenna is sectoral, a second item of communication quality information is obtained, and the antenna the second item of information of which is the highest is selected. For each antenna, a third item of communication quality is obtained if the selected antenna is the omnidirectional antenna, and from the third items of information, the antenna the third item of information of which is the highest is selected.