Transmitting Station Antenna Orientation Control
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Solution Overview
Problem
As the frequency band for data transmission increases, the beam pattern of the transmitting antenna becomes narrower, reducing the coverage area on the ground and degrading reception quality due to changes in the satellite's orbit, which affects the received signal quality at receiving stations using site diversity.
Innovation Solution
A transmitting station with a changeable antenna orientation direction, controlled by a control unit to optimize signal quality based on estimated signal quality values at receiving stations, ensuring the beam is directed to maintain desired signal quality across multiple receiving stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the frequency band for data transmission is increased, then the data transmission speed is improved, but the beam pattern becomes narrower and the coverage area decreases
Solution Approach 1:
The patent applies dynamics by making the transmitting antenna's orientation direction changeable through control. The control unit dynamically adjusts the antenna orientation based on estimated signal quality values at multiple receiving stations, allowing the beam to adapt its direction and maintain optimal coverage across different locations rather than being fixed in a narrow pattern
Solution Approach 2:
The patent changes the orientation parameter of the transmitting antenna dynamically. By adjusting the orientation direction of the antenna according to signal quality estimates at different receiving stations, the system modifies the beam pattern's directional characteristics to maintain adequate coverage area while operating at higher frequency bands
2Speed
If the beam pattern becomes narrower, then the data transmission speed can be increased, but the received signal quality at receiving stations degrades
Solution Approach 1:
The patent implements feedback by using estimated signal quality values from multiple receiving stations to control the transmitting antenna's orientation. The control unit receives signal quality information and adjusts the antenna orientation accordingly, creating a closed-loop system that maintains reliable signal reception while enabling high-speed transmission
Solution Approach 2:
The system dynamically adjusts the antenna orientation based on real-time signal quality conditions. By making the beam direction changeable and adapting it to the actual receiving stations' locations and signal conditions, the system maintains reliable signal quality even with a narrower beam pattern enabled by higher frequency operation
3Area of stationary object
If the antenna diameter is reduced, then the beam pattern becomes wider, but the gain of the transmitting antenna decreases
Solution Approach 1:
Instead of relying on a larger antenna diameter to achieve wider beam coverage, the patent uses dynamic orientation control of the transmitting antenna. The control unit adjusts the beam direction based on signal quality estimates, allowing the system to achieve effective coverage through intelligent beam steering rather than physical antenna size
Solution Approach 2:
The patent changes the operational parameters of the antenna system by dynamically adjusting orientation direction rather than relying solely on fixed physical dimensions. This allows the system to optimize the effective beam coverage and gain distribution according to the specific locations and conditions of receiving stations
Data Source
AI summary
A transmitting station includes a transmitting antenna whose orientation direction is changeable, and a controller that controls the orientation direction of the transmitting antenna according to an orientation direction of the transmitting antenna determined together with receiving stations to receive data transmitted from the transmitting antenna based on estimate values of received signal quality at receiving stations that are candidates for receiving stations to receive data transmitted from the transmitting antenna. The transmitting station can maintain received signal quality at a plurality of receiving stations at a desired value or more in a data transmission system.