Base Station Reflection Control for Wireless Coverage
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Solution Overview
Problem
In wireless communication systems, base station devices struggle to accurately transmit radio waves to terminal devices within communication areas obstructed by shielding objects, leading to poor wireless connection quality due to difficulties in precisely setting reflection angles of reflected waves.
Innovation Solution
A base station device is equipped with a determining controller to determine information related to applied voltage and its changing cycle in reflected waves, and a reflection controller that transmits this information to a reflection control device, such as a RIS (Reconfigurable Intelligent Surface), to adjust the reflection angle accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a reflection control device is used to transmit radio waves to terminal devices in obstructed areas, then wireless communication coverage is improved, but the reflection angle control precision is insufficient leading to poor connection quality
Solution Approach 1:
The patent applies dynamics by making the reflection angle controllable and adjustable in real-time. The reflection control device changes the reflection angle according to terminal device positions and communication requirements, transforming a static reflecting surface into a dynamic one that can adapt to varying communication conditions, thereby achieving both extended coverage and precise control.
Solution Approach 2:
The patent implements parameter changes by adjusting the reflection angle as a controllable parameter. The base station determines optimal reflection angles based on terminal device locations and communication quality requirements, then controls the reflection control device to adjust its reflection angle accordingly, enabling precise beam steering to improve connection quality in obstructed areas.
2Reliability
If the reflection angle is adjusted to improve connection quality in obstructed areas, then wireless communication quality is improved, but the complexity of voltage control increases
Solution Approach 1:
The patent employs feedback mechanisms where the base station receives communication quality information from terminal devices and adjusts the reflection angle accordingly. The determining controller continuously monitors communication status and modifies the voltage control parameters to optimize the reflection angle, creating a closed-loop control system that improves reliability while managing complexity through intelligent control algorithms.
Solution Approach 2:
The system implements self-service by enabling the base station to autonomously determine and adjust reflection angles based on received communication quality feedback. The determining controller automatically processes terminal device positions and connection quality data to generate appropriate voltage control commands, reducing the need for manual intervention and simplifying overall system operation despite the underlying control complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the accuracy of reflection angle control, improving the power density and quality of received reflected waves, thereby mitigating the deterioration of wireless communication quality in obstructed areas.
Implementation Method 1
the reflection control device changes a reflection angle of the reflected wave in accordance with change in applied voltage
Data Source
AI summary
A base station device in a wireless communication system which includes the base station device, a terminal device, and a reflection control device that receives and reflects a signal that the base station device transmits so as to transmit a reflected wave, and in which the reflection control device changes a reflection angle of the reflected wave in accordance with change in applied voltage, the base station device includes, a determining controller that determines information relating to the applied voltage in the reflected wave and a changing cycle of the applied voltage and a reflection controller that transmits the information to the reflection control device and causes change of the applied voltage to be repeated in the changing cycle in accordance with the information.