Pyramid RIS Deflector for Non-Line-of-Sight Multi-Receiver Links
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Solution Overview
Problem
Existing methods do not effectively utilize reconfigurable intelligent surfaces to create communication links between a single transmission device and multiple receiving devices, particularly in the absence of line-of-sight propagation.
Innovation Solution
A communication system employing a pyramid-shaped deflection device with reconfigurable intelligent surfaces to split and reflect data signals to multiple receiving devices, allowing for point-to-multipoint communication with high-directivity antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single transmission device communicates with multiple receiving devices without line-of-sight, then communication coverage is improved, but device complexity increases due to the need for multiple transmission devices or complex antenna systems
Solution Approach 1:
The patent introduces a reconfigurable intelligent surface (RIS) as an intermediary between the transmission device and receiving devices. The RIS consists of multiple programmable elements that can dynamically adjust phase, amplitude, and polarization of electromagnetic waves to create virtual line-of-sight paths, enabling a single transmission device to communicate with multiple receiving devices without requiring multiple transmitters or complex antenna systems.
Solution Approach 2:
The patent utilizes parameter changes of the electromagnetic wave propagation environment by dynamically reconfiguring the electrical characteristics (phase shift, amplitude, polarization) of each element on the intelligent surface. This allows the system to adaptively create optimal communication paths for multiple receiving devices, improving coverage while maintaining simple transmitter and receiver hardware.
2Reliability
If reconfigurable intelligent surfaces are used to establish communication links, then line-of-sight limitations are overcome, but the ability to serve multiple receiving devices simultaneously is limited
Solution Approach 1:
The patent segments the intelligent surface into multiple independently controllable elements or sub-surfaces, each capable of being configured to serve different receiving devices. This segmentation allows the system to create multiple independent communication paths simultaneously, enabling one transmission device to communicate with multiple receiving devices while maintaining reliable line-of-sight-like links for each.
Solution Approach 2:
The patent designs the intelligent surface with universal elements that can be dynamically reconfigured to serve different communication purposes. Each element on the surface can adapt its phase, amplitude, and polarization characteristics to support multiple receiving devices simultaneously, making the system universally applicable to various communication scenarios without requiring dedicated hardware for each device.
3Adaptability or versatility
If multiple transmission devices are used to communicate with multiple receiving devices, then communication coverage is improved, but cost and system complexity increase
Solution Approach 1:
The patent makes the single transmission device universal by introducing the reconfigurable intelligent surface that enables the transmitter to serve multiple receiving devices through dynamic beamforming and spatial multiplexing. The intelligent surface acts as a multi-functional interface that allows one transmission device to perform the role of multiple transmitters, reducing the total number of devices required while maintaining comprehensive communication coverage.
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
Enables efficient, cost-effective communication with multiple devices by using a single refractor, overcoming line-of-sight limitations and reducing ambient interference.
Implementation Method 1
the data signal transmitted by the transmission device is split up and reflected by the at least one surface of the pyramid shaped deflection device, in particular in the direction of the receiving device
Data Source
Figure 1~2
AI summary
A communication system (10) for wireless transmitting a data signal (34) from a transmission device (12) of the communica- tion system (10) to at least a first receiving device (16) of the communication system (10), wherein the transmission device (12) is configured for generating the data signal (34) and transmitting the data signal (34) in surroundings (36) of the communication system (10), and wherein the receiving device (16, 18, 20, 22) is configured for receiving the transmitted data signal (34), characterized in that the communication system (10) comprises a pyramid shaped deflection device (24) for deflecting the transmitted data signal (34) from the transmission device (12) to the receiving device (16, 18, 20, 22, wherein at least one surface (26, 28, 30, 32) of the pyramid shaped de- flection device (24) is configured as a reconfigurable intelligent surface device (58).