US20250323690
2025-10-16
Electricity
H04B7/04013
The patent application discusses an innovative approach to channel estimation in communication networks using reconfigurable intelligent surfaces (RIS). RIS technology enhances the propagation environment, particularly beneficial for high-frequency bands like millimeter wave or terahertz. By employing an array of antenna elements with controllable phase shifters, RIS can redirect incident waves in specific directions at designated frequencies. This technology promises significant improvements in link-level performance by optimizing signal directionality and strength.
The application focuses on advancements in communication networks, specifically targeting channel estimation methods for transmissions utilizing RIS. These surfaces consist of antenna arrays capable of altering the phase of incoming signals to improve transmission characteristics. The application aims to refine these methods to enhance data transmission reliability and efficiency in challenging frequency bands.
RIS technology is critical for optimizing signal propagation in communication networks. By adjusting phase differences across antenna elements, RIS can direct signals more accurately, even with limited phase shifter quantization. This capability is crucial for managing high-frequency transmissions, where traditional methods may fall short. The application highlights the potential of RIS to transform communication strategies by leveraging programmable signal redirection.
The detailed description includes references to accompanying drawings and explains the components and functions of the proposed system. It outlines the use of specific structures, architectures, and interfaces to facilitate a comprehensive understanding of the embodiments. The document also defines key terms and concepts, ensuring clarity in the technical context and providing a framework for implementing the described methods.
Illustrating a typical network environment, the application describes how user equipment (UE) interacts with a base station via a RIS. The RIS serves as an intermediary, redirecting transmissions between the UE and the base station. A RIS controller manages the phase shifts of RIS elements, optimizing the transmission path. This setup exemplifies the practical application of RIS technology in modern communication networks, showcasing its potential to enhance connectivity and data flow.