Adaptive Phase-Changing Devices for Multi-UE Signal Routing
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Solution Overview
Problem
Evolving wireless communication systems, such as 5G and 6G, face challenges in maintaining data capacity and signal quality due to multipath fading and path loss, especially in urban environments with obstructions, which affect the transmission and recovery of high-frequency signals used in MIMO communications.
Innovation Solution
The implementation of adaptive phase-changing devices (APDs) with Reconfigurable Intelligent Surfaces (RIS) that modify propagating signals to correct for errors by changing the surface configuration, transforming narrow-beam signals into wide-beam signals to overcome obstructions and improve signal coverage to multiple user equipments (UEs).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If higher frequency ranges are used to increase data capacity, then data capacity increases, but signal quality deteriorates due to multipath fading and path loss
Solution Approach 1:
The patent introduces an adaptive phase-changing device (APD) as an intermediary component in the communication path between the base station and user equipment. The APD includes a reconfigurable intelligent surface that actively modifies the propagation path of high-frequency signals, transforming narrow-beam signals into wide-beam signals to bypass obstructions and reduce multipath fading effects, thereby maintaining signal quality while enabling higher frequency usage for increased data capacity
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting the phase and amplitude characteristics of the APD surface elements based on channel conditions. The base station determines surface configuration parameters for the APD to optimize signal transformation, changing the phase shift and amplitude response of individual elements to adapt to varying propagation environments and maintain reliable high-frequency communication
2Productivity
If MIMO transmissions are used to increase data capacity, then data capacity increases, but signal quality deteriorates due to multipath fading
Solution Approach 1:
The APD serves as a mediating device that works in conjunction with MIMO transmissions to mitigate multipath fading. By transforming the signal beam characteristics and providing additional propagation paths through the reconfigurable surface, the APD complements the multiple transmission paths in MIMO, reducing signal distortions and recovery errors while maintaining the high data capacity benefits of MIMO
3Reliability
If obstructions are present in the communication path, then signal coverage is limited, but transmission power must be increased to maintain signal quality
Solution Approach 1:
The APD acts as an intermediary that redirects and transforms signals around obstructions rather than requiring increased transmission power. The reconfigurable intelligent surface actively shapes the signal to bypass blockages, providing reliable signal coverage through intelligent signal routing rather than brute-force power increase
Solution Approach 2:
The patent applies dimensionality change by transforming narrow-beam signals into wide-beam signals through the APD surface configuration. This spatial transformation allows the signal to cover a broader area and bypass obstructions in the original transmission path, achieving reliable coverage without proportionally increasing transmission power
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 quality and reduces recovery errors by efficiently routing signals around obstructions, allowing for more effective use of high-frequency communications with reduced transmission power and interference, thereby maintaining data capacity and improving network performance in challenging environments.
Implementation Method 1
adaptive phase-changing devices (APDs) with Reconfigurable Intelligent Surfaces (RIS) that modify propagating signals to correct for errors by changing the surface configuration
Implementation Method 2
transforming narrow-beam signals into wide-beam signals to overcome obstructions and improve signal coverage
Data Source
AI summary
In aspects, a base station determines to transmit a multi-user-equipment communication, multi-UE communication, to multiple user equipments, UEs. The base station determines to include an adaptive phase-changing device, APD, in a communication path for a wireless signal carrying the multi-UE communication and selects a surface configuration for a surface of the APD based on determining to transmit the multi-UE communication. The base station directs the APD to apply the surface configuration to the surface and transmits the wireless signal carrying the multi-UE communication by transmitting the wireless signal towards the surface of the APD.