Roof-Mounted CPE Unit for Millimeter Wave Signal Conversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Millimeter wave transmissions face significant challenges in penetrating building structures, resulting in signal degradation and limiting their implementation in modern wireless communication systems due to high losses when passing through windows and walls.
Innovation Solution
A system utilizing a roof-mounted CPE unit that converts and retransmits millimeter wave signals using Ethernet-powered circuitry, enabling signal penetration through building materials like glass and concrete without physical drilling, by employing techniques such as orbital angular momentum and multiple level overlay modulation to enhance spectral efficiency and overcome penetration losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If millimeter wave transmissions are used to provide high bandwidth, then bandwidth availability is improved, but building penetration capability deteriorates
Solution Approach 1:
The patent introduces an intermediary device (signal converter/repeater) that receives millimeter wave signals from the base station, converts them to lower frequency signals that can penetrate buildings, and retransmits them indoors. This intermediary system resolves the contradiction by transforming the signal form to overcome the penetration limitation while preserving the high bandwidth capability of the original millimeter wave transmission.
2Device complexity
If millimeter wave signals are transmitted directly through building materials, then signal transmission is simplified, but signal loss increases
Solution Approach 1:
The patent places an intermediary signal conversion device on the building exterior that converts millimeter wave signals to lower frequency signals before they enter the building. This approach reduces signal loss by avoiding direct transmission through building materials, while the conversion process adds manageable complexity to the transmission system.
3Reliability
If physical drilling is performed to enable signal penetration, then signal penetration capability is improved, but structural integrity and installation complexity worsen
Solution Approach 1:
The patent uses an intermediary signal conversion device mounted on the building exterior that eliminates the need for physical drilling or structural modifications. The device converts signals externally and transmits them through existing building openings or wireless pathways, thereby improving signal penetration capability while avoiding the installation complexity and structural damage associated with drilling.
Data Source
AI summary
A system for enabling signal penetration into a building includes an antenna located on a roof of a building for receiving signals at a first frequency that experience losses when penetrating into an interior of the building from a remote base station. First circuitry, located on an outside of the building, receives the signals at the first frequency that experiences losses when penetrating into the interior of the building and converts the received signals at the first frequency into a first format that overcome losses caused by penetrating into the interior of the building over a wireless communications link. The first circuitry is connected to the antenna via an Ethernet cable that transmits both electrical power and data. Power on Ethernet (POE) circuitry powers the antenna responsive to electrical power received via the Ethernet cable. Second circuitry is located on the interior of the building and communicatively links with the first circuitry via the wireless communications link, to receive and transmit the converted received signals in the first format that counteracts the losses caused by penetrating into the interior of the building.