Composite Surface System for Wireless Signal Coverage
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Solution Overview
Problem
Penetration loss of wireless communication signals through materials such as concrete, tinted glass, or low-emissivity glass significantly reduces cellular signal quality for indoor and vehicular users, particularly at high frequencies, necessitating improved coverage solutions.
Innovation Solution
A composite surface system comprising a transmissive surface (TS) component that transmits wireless communication signals with controlled signal strength loss and a reflective surface (RS) component that reflects signals within a defined field-of-view (FoV), allowing for customized coverage and flexibility in signal distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication signals are transmitted through materials such as concrete, tinted glass, or low-emissivity glass, then signal coverage can be provided to indoor and vehicular users, but signal strength loss increases significantly, particularly at high frequencies
Solution Approach 1:
A composite surface system comprising a transmissive surface component and a reflective surface component is introduced as an intermediary between the wireless communication signal and the indoor/vehicular users. The transmissive component allows signals to pass through building materials with reduced attenuation, while the reflective component directs signals into indoor areas, thereby improving signal coverage without significant strength loss
Solution Approach 2:
The patent employs a composite surface system that combines different surface types (transmissive and reflective) in a single integrated structure. This composite approach leverages the complementary properties of each component: the transmissive portion minimizes signal blocking while the reflective portion redirects signals, collectively reducing overall signal strength loss compared to using conventional single-material surfaces
2Ease of manufacture
If conventional single-material surfaces are used, then manufacturing and installation are simpler, but signal coverage flexibility and customization are limited
Solution Approach 1:
The surface system is segmented into distinct functional zones: a transmissive surface component and a reflective surface component. Each segment performs a specific function (transmission or reflection) and can be optimized independently. This segmentation allows the system to achieve complex signal distribution patterns while maintaining relatively simple manufacturing and installation processes for each individual component
Solution Approach 2:
The composite surface system serves multiple functions simultaneously: it provides structural coverage, enables signal transmission through materials, directs signal reflection into coverage areas, and offers customizable signal distribution. This multi-functionality allows a single integrated system to replace what would otherwise require multiple separate components, maintaining ease of installation while dramatically improving adaptability
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
The composite surface system enhances indoor and vehicular communication coverage by reducing penetration loss and providing tailored signal coverage, improving signal strength and flexibility in various scenarios.
Implementation Method 1
a transmissive surface (TS) component capable of transmitting a wireless communication signal incident on the TS component
Implementation Method 2
a reflective surface (RS) component capable of reflecting the wireless communication signal within a reflective FoV
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a composite surface system may include a transmissive surface (TS) component capable of transmitting a wireless communication signal incident on the TS component, transmitting the wireless communication signal within a transmissive field-of-view (FoV), and configured to limit signal strength loss of one or more radio frequencies of the wireless communication signal. In some aspects, the composite surface system may include a reflective surface (RS) component capable of reflecting the wireless communication signal within a reflective FoV. The RS component may include a non-uniform pattern region associated with controlling a size of the reflective FoV.