Self-Positionable Wireless Device Dynamic Beam Adjustment
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Solution Overview
Problem
Public safety personnel often face communication disruptions during incidents due to network congestion and low service levels in public infrastructure, hindering reliable communication in incident areas.
Innovation Solution
A self-positionable wireless device with dual-band radio capabilities, including a narrowband and broadband antenna system, dynamically adjusts beam direction and width to establish a directional broadband link, using navigation data to maintain communication despite environmental changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If public infrastructure is used for control and access channels, then deployment is simple and fast, but service level and reliability are low
Solution Approach 1:
The patent introduces an intermediary wireless device that establishes a wireless connection between the incident area and the public safety network. This intermediary device receives control channel information from public infrastructure and retransmits it through a dedicated wireless link, thereby improving reliability without requiring direct modification of the public infrastructure.
2Loss of information
If narrowband wireless link is established first, then location and velocity data can be exchanged, but initial connection establishment time is increased
Solution Approach 1:
The patent performs preliminary actions by establishing a narrowband wireless link first to exchange location and velocity data before setting up the broadband link. This preliminary data exchange enables the system to pre-calculate beam directions and adjust antenna configurations, so that when the broadband link is established, the directional beams are already optimized, reducing the overall setup time.
3Reliability
If directional broadband link is established using navigation data, then communication reliability is improved, but device complexity and processing requirements increase
Solution Approach 1:
The patent implements dynamic beam adjustment where the wireless device continuously monitors location and velocity data from navigation systems and adjusts the beam direction of its antennas in real-time. This dynamic adaptation allows the system to maintain reliable directional communication despite movement or environmental changes, with the complexity managed through automated algorithms rather than manual configuration.
Data Source
AI summary
A system and method for a providing a dynamic backhaul. In one example, the system includes a self-positionable wireless device (for example, a drone) including a dual-band radio configured to establish a wireless connection between the self-positionable wireless device and a wireless system. The dual-band radio initiates a narrowband wireless link with the wireless system via a first narrowband antenna of the self-positionable wireless device and a second narrowband antenna of the wireless system. A navigation system generates location, velocity and error estimate of the self-positionable wireless device. The location is transmitted to the wireless system using the narrowband wireless link. The self-positionable wireless device receives via the narrowband wireless link location, velocity and error estimate of the wireless system. The self-positionable wireless device establishes a directional broadband wireless link with the wireless system using the location, velocity and error estimate of the self-positionable wireless system and the wireless system.