RF Signal Transport via Data Network Repeaters
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Solution Overview
Problem
Existing wireless communication systems face challenges in transmitting low bit rate signals over long distances, especially in scenarios where direct communication between base stations and mobile stations is hindered by distance or obstructions, necessitating the use of repeaters like distributed antenna systems to convey signals effectively.
Innovation Solution
A system and method that involves demodulating RF signals from base stations, processing and packaging enterprise data into TCP/IP packets for transmission over data networks, and re-modulating them onto RF carriers for wireless transmission to mobile stations, utilizing converter units and modems within wideband wireless communication networks, including the use of repeaters and distributed antenna systems to facilitate signal transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct RF communication is used between base station and mobile station, then communication simplicity is maintained, but communication reliability deteriorates when distance is too great or obstructions exist
Solution Approach 1:
The patent introduces a repeater system with separate network unit and user unit that acts as an intermediary between the base station and mobile station. The network unit receives signals from the base station via network interface, processes them, and the user unit transmits them to the mobile station via radio interface, thereby enabling reliable communication in obstructed or distant scenarios without requiring direct line-of-sight RF communication.
2Area of stationary object
If repeater systems are deployed to overcome distance and obstruction limitations, then communication coverage is improved, but signal processing complexity increases
Solution Approach 1:
The repeater system is segmented into distinct functional units: a network unit handling network interface and signal reception, and a user unit handling radio interface and signal transmission. This segmentation allows each unit to be optimized for its specific function, simplifying the overall signal processing complexity while expanding communication coverage area.
Solution Approach 2:
The repeater system is designed to handle multiple signal types and protocols through its network unit, which can interface with various enterprise networks while the user unit provides universal radio communication capabilities. This multi-functionality allows a single repeater deployment to serve diverse communication needs across expanded coverage areas.
3Length of stationary object
If low bit rate signals are transmitted over long distances using existing systems, then transmission distance is limited, but if repeaters are used then system complexity increases
Solution Approach 1:
The network unit acts as an intermediary that receives low bit rate enterprise signals, converts them to appropriate formats, and transmits them over the wireless network to user units that then deliver them to mobile stations. This intermediary approach enables long-distance transmission of low bit rate signals without requiring complex point-to-point RF communication systems.
Data Source
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AI summary
One embodiment is directed to a system comprising a first converter unit configured to receive a first modulated enterprise signal from an enterprise base station, demodulate the first modulated enterprise signal, extract enterprise data from the demodulated enterprise signal, and transmit the enterprise data to a modem over a wideband wireless communication network. The system further comprises a second converter unit configured to receive the enterprise data from the modem. The modem is configured receive the enterprise data from the wideband wireless communication network. The system is configured to create a second modulated enterprise signal corresponding to the first modulated enterprise signal using the enterprise data and wirelessly transmit the second modulated enterprise signal to an enterprise mobile station.