Reconfigurable Intelligent Surface Dynamic Grouping for Signal Coverage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Reconfigurable intelligent surfaces struggle to adapt to changing communication channel environments due to fixed locations and obstacles, limiting their effectiveness in improving signal coverage and transmission performance.
Innovation Solution
A communication system and method that dynamically groups base stations and reconfigurable intelligent surface devices based on signal measurement results to optimize transmission performance, allowing the RIS devices to adjust their reflection directions and beam configurations in response to changing channel conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If reconfigurable intelligent surface is used to reflect signals and improve coverage, then signal coverage is improved, but the system cannot adapt to changing channel conditions due to fixed locations
Solution Approach 1:
The patent applies dynamics by enabling the RIS device to dynamically reconfigure its reflection characteristics through adjustable phase shifters and controllable elements. The RIS can adapt its reflection pattern in real-time based on channel conditions, user equipment positions, and obstacle configurations, transforming a static structure into a dynamic one that responds to environmental changes.
Solution Approach 2:
The patent implements parameter changes by allowing the RIS device to modify its electromagnetic properties through adjusting the phase, amplitude, and reflection direction of incident signals. The controllable elements can change their electrical characteristics to optimize signal reflection for different channel conditions, effectively changing the operational parameters of the RIS system.
2Productivity
If high-frequency signals are used for communication, then transmission efficiency is improved, but signal coverage is reduced and penetration ability deteriorates
Solution Approach 1:
The patent uses the RIS device as an intermediary between the base station and user equipment. The RIS reflects and redirects high-frequency signals around obstacles and into coverage areas that would otherwise be unreachable, acting as a mediator that extends the effective coverage of high-frequency signals without requiring the base station to transmit at lower frequencies.
Solution Approach 2:
The patent introduces another dimension to signal propagation by using the RIS to create reflected signal paths through three-dimensional space. Instead of relying solely on direct line-of-sight transmission, the system utilizes indirect paths via the RIS surface, effectively adding spatial dimensions to the communication geometry and expanding coverage area.
3Reliability
If reconfigurable intelligent surface adjusts phase and amplitude to direct signals, then transmission performance is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the RIS surface into multiple independently controllable elements or units. Each element can be controlled separately to achieve complex beamforming and signal redirection patterns. This modular segmentation allows the system to achieve high transmission performance through coordinated control of individual elements while maintaining manageable device complexity through standardized unit structures.
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 approach enhances signal coverage and adaptability, improving communication system flexibility and performance by dynamically adjusting RIS device configurations to match actual channel conditions, thereby overcoming signal blocking issues and improving transmission efficiency.
Implementation Method 1
the reconfigurable intelligent surface may reflect the received signal to the terminal equipment
Implementation Method 2
a reconfigurable intelligent surface made of electromagnetic materials may adjust the phase or amplitude of the incident signal to direct the reflected signal to a specific direction
Data Source
AI summary
An aspect of the disclosure includes a communication system and a communication method using reconfigurable intelligent surface and a reconfigurable intelligent surface device. The communication system includes at least one base station, a reconfigurable intelligent surface device, and a control at one least device. The at least one base station respectively transmits at least one beam. The reconfigurable intelligent surface device is coupled to the at least one base station, and measures the at least one beam of the at least one base station to obtain signal measurement results associated with each of the at least one base station. The control device is coupled to the at least one base station. The control device groups the at least one base station and the reconfigurable intelligent surface device into at least one group according to the signal measurement results associated with each of the at least one base station.