Adaptive Phase-Changing Device Position Control for Wireless Signal Recovery
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Solution Overview
Problem
Evolving wireless communication systems, such as 5G and 6G, face challenges in maintaining data throughput and reliability due to multi-path fading and other channel impairments, especially at higher frequencies and in MIMO communications, where dynamic changes in channel conditions require adaptive signal management.
Innovation Solution
The implementation of adaptive phase-changing devices (APDs) with Reconfigurable Intelligent Surfaces (RIS) that modify signal properties by adjusting surface configurations and positions based on real-time link quality parameters, allowing for dynamic compensation of channel impairments through adaptive phase and amplitude modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If higher frequency signals and MIMO transmissions are used to increase data capacity, then data capacity is improved, but multi-path fading and path loss increase leading to recovery errors
Solution Approach 1:
The patent introduces a Reconfigurable Intelligent Surface (RIS) as an intermediary device between the base station and user equipment. The RIS reflects and redirects radio waves to create alternative transmission paths, acting as a mediator that enables signal recovery in multi-path fading conditions without requiring direct line-of-sight transmission.
Solution Approach 2:
The patent adds a spatial dimension to signal transmission by deploying RIS elements that can be configured in three-dimensional space. This creates additional transmission dimensions beyond traditional two-dimensional antenna arrays, enabling new signal paths that avoid conventional fading channels.
2Reliability
If dynamic changes in channel conditions are compensated using adaptive phase-changing devices, then signal quality is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic adaptability by enabling the RIS to reconfigure its surface elements in real-time based on channel conditions. The system dynamically adjusts phase and amplitude configurations of RIS elements to adapt to changing transmission environments, improving signal quality without requiring complex centralized control.
Solution Approach 2:
The RIS performs self-configuration and self-optimization by autonomously adjusting its surface elements based on received control signals. This distributed self-service capability reduces the complexity of centralized control systems while maintaining adaptive signal quality compensation.
Data Source
AI summary
Techniques and apparatuses are described for modifying a position of an adaptive phase-changing device, APD. In aspects, a base station receives, from a user equipment, UE, at least one link quality parameter that is indicative of a channel impairment. The base station then identifies, using the at least one link quality parameter, a surface configuration for a reconfigurable intelligent surface (RIS) of an adaptive phase-changing device (APD) and transmits a first indication of the surface configuration using an adaptive phase-changing device control channel, APD control channel. In aspects, the base station determines using the at least one link quality parameter, a position configuration for the APD and transmits a second indication of the position configuration to the APD. The base station then communicates with the UE using the APD.