Intelligent Surface Signal Routing for High-Frequency Coverage Holes
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Solution Overview
Problem
High-frequency communications systems face reliability issues due to direct signal transmission from communication nodes, leading to coverage holes and weak wireless signals in certain regions.
Innovation Solution
Implementing a Large Intelligent Surfaces (LIS) node or hypersurface node to dynamically adjust electromagnetic properties, allowing for controlled signal reflection and refraction to improve transmission reliability by adapting transmission modes based on indicated information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct signal transmission from base station to terminal is used, then device complexity is reduced, but signal transmission reliability deteriorates due to coverage holes and weak wireless signals in high-frequency bands
Solution Approach 1:
The patent introduces an intelligent reflecting surface (IRS) as an intermediary component between the base station and terminal. The IRS dynamically adjusts electromagnetic properties to reflect and refract signals, creating alternative transmission paths that bypass coverage holes and strengthen weak signals in high-frequency bands, thereby improving transmission reliability without requiring complex multi-antenna systems at the base station
Solution Approach 2:
The intelligent reflecting surface employs dynamically adjustable electromagnetic properties that can be reconfigured in real-time based on channel conditions. The surface elements can independently control phase shifts, amplitude, and polarization to adapt to varying signal requirements, enabling the system to maintain high reliability across different transmission scenarios while keeping the overall architecture relatively simple
2Productivity
If high-frequency bands are used for communication, then bandwidth and data rate are improved, but coverage quality deteriorates due to obstacles causing coverage holes and weak signals
Solution Approach 1:
The patent changes the electromagnetic parameters (permittivity, permeability, conductivity) of the intelligent reflecting surface elements to optimize signal propagation in high-frequency bands. By dynamically adjusting these parameters, the system can compensate for the poor coverage characteristics of high-frequency signals while maintaining the high data rates enabled by the frequency band selection
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
Enhances signal transmission reliability by optimizing beamforming and beam scanning, effectively addressing coverage holes and improving communication quality in high-frequency bands.
Implementation Method 1
allowing for controlled signal reflection and refraction to improve transmission reliability
Implementation Method 2
allowing for controlled signal reflection and refraction to improve transmission reliability
Implementation Method 3
optimizing beamforming and beam scanning, effectively addressing coverage holes
Data Source
AI summary
A signal transmission method, an information sending method, and a communication node are provided. The signal transmission method includes: obtaining first information. The first information is used for indicating a transmission mode of a first node or a second node. The signal transmission method further includes transmitting a signal related to the second node according to the transmission mode corresponding to the first information.