Wireless RF Conversion System Using Optical Fiber Segmentation
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Solution Overview
Problem
The 5G network requires a new system disposition due to the inability to place antennas and related elements outdoors like in 4G networks, necessitating a solution for efficient radio frequency conversion and data transmission.
Innovation Solution
A wireless radio frequency conversion system comprising a wireless radio frequency transmit-receive device, a first conversion device, optical fibers, and a second conversion device, which converts radio frequency signals to optical signals for transmission through optical fibers to an indoor wireless radio frequency transmission device, forming an active antenna unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If antennas and remote radio units are disposed outdoors like in 4G networks, then wireless signal transmission is simplified, but 5G network spatial constraints and interference issues arise
Solution Approach 1:
The system divides the radio frequency conversion function into separate outdoor and indoor units. The outdoor unit handles antenna signal reception and initial conversion, while the indoor unit completes the conversion process. This segmentation allows each unit to be optimally positioned without the constraints of traditional integrated outdoor placement.
Solution Approach 2:
An optical fiber connection acts as an intermediary between the outdoor and indoor units, transmitting converted signals through the building structure. This intermediary enables signal transmission from outdoor antennas to indoor processing equipment without direct outdoor placement of sensitive conversion components.
2Adaptability or versatility
If remote radio units are disposed indoors like in 4G networks, then spatial constraints are reduced, but signal transmission distance and interference increase
Solution Approach 1:
The conversion process is segmented into two stages: initial conversion at the outdoor unit close to antennas, and final conversion at the indoor unit. This reduces the distance over which high-frequency signals must travel through building structures, minimizing interference while still allowing indoor placement.
3Adaptability or versatility
If a new system disposition is implemented for 5G networks, then spatial constraints are addressed, but system complexity increases
Solution Approach 1:
The outdoor and indoor units are designed with universal interfaces and standardized conversion functions that can handle multiple signal types and configurations. This multi-functionality reduces the need for specialized components for each deployment scenario, simplifying overall system configuration despite the distributed architecture.
4Reliability
If optical fiber transmission is used for data signals, then transmission quality is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The optical conversion function is extracted as a dedicated module within the radio frequency conversion units. This modular approach allows the optical fiber interface to be implemented as a standardized component rather than a complex integrated system, reducing overall device complexity while maintaining high transmission quality.
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
This system enables efficient data transmission and reception, conforming to the needs of 5G networks by using optical fibers to transmit data signals from outdoor antennas to indoor devices, thus addressing the spatial constraints of 5G network deployments.
Implementation Method 1
The at least one optical fiber is coupled to the first conversion device, and configured to transmit the at least one optical signal
Data Source
AI summary
A wireless radio frequency conversion system is disclosed. The wireless radio frequency conversion system includes a wireless radio frequency transmit-receive device, a first conversion device, at least one optical fiber, a second conversion device, and a wireless radio frequency transmission device. The wireless radio frequency transmit-receive device performs a conversion and a transmit-receive manner to at least one radio frequency signal and at least one data signal. The first conversion device performs a conversion to the at least one data signal and at least one optical signal. The optical fiber transmits the at least one optical signal. The second conversion device performs a conversion to the at least one optical signal and the at least one data signal. The wireless radio frequency transmission device performs a conversion and a transmit-receive manner to the at least one data signal and the at least one terminal signal.