Multi-Beam Precoding for Dense Wireless Stations
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Solution Overview
Problem
Current wireless communication networks are struggling to accommodate the increasing demand for high data traffic and provide quality of service due to limited bandwidth, especially with the rise in the number of wireless user devices.
Innovation Solution
Implementing multi-layer wireless connectivity using Luneburg antennas with precoding and postcoding operations to maximize the desired signal level to interference ratio, allowing for efficient communication with multiple wireless stations through multiple beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional wireless systems are used, then bandwidth is limited, but device density and data traffic demand are increasing
Solution Approach 1:
The patent segments the wireless communication space into multiple layers (first layer and second layer) with different signal characteristics. The first layer uses line-of-sight dominant signals while the second layer uses non-line-of-sight dominant signals, allowing simultaneous service to multiple devices without interfering with each other, thereby increasing device density capacity
Solution Approach 2:
The patent introduces a vertical dimension to wireless communication by establishing multi-layer connectivity. Devices can communicate through different spatial layers with distinct signal paths, effectively adding a dimensional aspect to traditional 2D wireless networks, which increases capacity without requiring additional bandwidth
2Quantity of substance
If more wireless devices are served, then device density increases, but interference between transmissions increases
Solution Approach 1:
The patent segments interference-prone wireless transmissions into distinct layers: first layer for line-of-sight dominant signals and second layer for non-line-of-sight dominant signals. This segmentation allows the system to serve more wireless stations simultaneously while maintaining signal quality by routing transmissions through appropriate layers based on their interference characteristics
Solution Approach 2:
The patent applies local quality by assigning different signal characteristics to different spatial layers. The first layer is optimized for line-of-sight transmissions while the second layer is optimized for non-line-of-sight transmissions, allowing each layer to handle specific types of transmissions with minimal interference, thereby enabling more stations to be served
3Productivity
If multi-layer multi-beam communication is implemented, then device density and throughput increase, but system complexity increases
Solution Approach 1:
The patent segments the complex multi-layer multi-beam system into manageable components: feed ports, precoding subsystems, antenna subsystems, and postcoding subsystems. Each component handles specific functions (signal input, precoding, beam transmission, postcoding), making the overall complex system more manageable and implementable while maintaining high throughput capability
Solution Approach 2:
The patent applies preliminary action through precoding operations performed before signal transmission. The precoding subsystem processes input signals in advance to optimize them for the specific transmission layer and beam characteristics, reducing the complexity of real-time signal processing during transmission and enabling efficient multi-layer communication
Data Source
AI summary
A wireless communication device includes a feed port comprising multiple input feeds, a precoding subsystem that is electrically connected to the feed port; and an antenna subsystem electrically connected to the precoding subsystem. The antenna subsystem is configured to transmit an output signal of the precoding subsystem to multiple wireless stations using multiple beams. The precoding subsystem is configured to perform a precoding operation on an input signal from the feed port, wherein the precoding operation maximizes a desired signal level to interference ratio of transmissions to the multiple wireless stations.