Rotating Directional Hotspot Antenna for Maximum Mobile Bitrate
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Solution Overview
Problem
Omnidirectional antennas in mobile hotspots suffer from lower gain and bitrate due to unknown cell positions and orientations, making it difficult to achieve optimal network connections.
Innovation Solution
A method involving a directional antenna that rotates azimuthally to scan for available cells, records signal-to-noise ratios, and selects the most favorable positions for data connections, using a database to automatically direct the antenna for maximum bitrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an omnidirectional antenna is used in a mobile hotspot, then the device works well even when physically moved or rotated, but the gain and maximum attainable bitrate are lower
Solution Approach 1:
The patent applies the dynamics principle by making the antenna system movable rather than fixed. The directional antenna is mounted on a rotating mechanism that can change its orientation dynamically. The system rotates the antenna azimuthally to scan for available cells and automatically adjusts the antenna direction to point towards the optimal cell, thereby achieving high gain and bitrate while maintaining adaptability through automated repositioning.
2Power
If a directional antenna is used to achieve higher gain, then the maximum attainable bitrate improves, but the orientation of the antenna becomes crucial and requires knowledge of cell positions
Solution Approach 1:
The patent applies the self-service principle by enabling the antenna system to automatically determine and adjust its own orientation without external intervention. The system performs self-service through automated cell scanning, signal quality measurement, and directional adjustment. The hotspot device independently identifies optimal cells and rotates the antenna to point towards them, eliminating the need for pre-known cell positions or manual orientation control.
Solution Approach 2:
The patent applies the feedback principle by implementing a closed-loop control system. The system continuously measures signal quality metrics (such as RSRP and SINR) from different directions, compares these measurements, and uses the feedback information to determine the optimal antenna orientation. This feedback mechanism allows the system to automatically adjust the antenna direction to maximize signal quality without requiring prior knowledge of cell positions.
3Power
If the directional antenna rotates to scan for available cells, then optimal network connections can be established, but the scanning process takes time
Solution Approach 1:
The patent applies the partial action principle by performing scanning in a systematic manner that covers only the necessary angular range rather than exhaustive 360-degree scanning in all cases. The system can perform partial scans when certain conditions are met, such as when the device is stationary or when previous scan results are still valid. This reduces the scanning time while still achieving optimal connection establishment.
Data Source
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AI summary
The present disclosure relates to a wireless hotspot device which is equipped with a directional antenna and bandwidth optimization thereof. One embodiment relates to a method for optimizing a bitrate of a wireless hotspot device in a mobile network having a plurality of distributed cells, each cell covered by at least one fixed transceiver, the wireless hotspot device having at least one directional antenna, the method comprising the steps of: rotating the directional antenna substantially azimuthally at least 90 degrees, preferably 360 degrees, in steps of N degrees, wherein N is a fixed or variable number; scanning for available cells for each step of N degrees the directional antenna is rotated; observing a signal to noise ratio for each available cell in each step of N degrees; saving an optimized azimuthal direction for each available cell, wherein the optimized azimuthal direction corresponds to the highest signal to noise ratio obtained for the available cell; repeating the previous steps for a number of frequency bands of the mobile network, setting up a data connection and running a data transfer speed test for all optimized azimuthal directions of each frequency band; automatically selecting an azimuthal operation position of the directional antenna based on the data transfer speed tests; and moving the directional antenna to the azimuthal operation position.