Base Station Frequency Converter for Wireless DOCSIS Transmission
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Solution Overview
Problem
Cable television systems cannot transmit DOCSIS frequencies wirelessly due to frequency conflicts with other applications, and existing signal conversion methods result in significant error multiplication when converting to higher frequencies, leading to accuracy loss.
Innovation Solution
A system and method that utilize a frequency converter with a mixer at a base station to convert DOCSIS frequency signals into higher frequency signals (70 or 80 GHz) for wireless transmission, employing synchronization and intermediate frequency conversion to minimize errors, and include antennas and filters to maintain signal accuracy within unlicensed bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If DOCSIS frequency signals are converted to much higher frequencies for wireless transmission, then wireless transmission capability is achieved, but error rate multiplies rapidly and signal accuracy is lost
Solution Approach 1:
The patent introduces an intermediary frequency conversion process with multiple intermediate frequency stages between the original DOCSIS frequency and the final high frequency. This multi-stage conversion with intermediate frequencies acts as a mediator to break the direct conversion path, thereby reducing error multiplication while achieving wireless transmission capability
Solution Approach 2:
The frequency conversion process is segmented into multiple stages with intermediate frequency conversions rather than a single direct conversion. This segmentation of the conversion process allows for better error control at each stage, preventing the rapid error multiplication that occurs in direct high-frequency conversion
2Speed
If direct frequency conversion to high frequencies is performed, then conversion speed is improved, but error multiplication occurs and accuracy is lost
Solution Approach 1:
The conversion process is divided into multiple sequential stages with intermediate frequency conversions. Each stage operates at a manageable frequency range, maintaining precision while progressing toward the final high-frequency output, thus balancing speed and accuracy
3Stability of the object's composition
If cable-based DOCSIS systems are used, then signal transmission stability is maintained, but frequency conflicts with other applications occur
Solution Approach 1:
The patent changes the frequency parameter of the signal from the original DOCSIS frequency range to a much higher frequency range suitable for wireless transmission. This parameter change allows the system to avoid frequency conflicts with other cable applications while maintaining stable signal transmission through controlled frequency conversion processes
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
Enables wireless transmission of high-frequency radio signals with reduced error multiplication, maintaining signal accuracy and avoiding frequency conflicts, thus overcoming the limitations of existing cable-based systems.
Implementation Method 1
a frequency mixer associated with the base station may convert the first carrier signal into a first converted carrier signal having a first intermediate frequency and convert the second carrier signal into a second converted carrier signal having a second intermediate frequency
Data Source
AI summary
Provided are systems and methods for conversion and transmission of radio signals. A system for conversion and transmission of radio signals includes a frequency converter and a transmitter associated with a base station. The frequency converter is configured to receive, via a cable, a first radio signal having a predetermined frequency. The predetermined frequency is based on a Data over Cable Service Interface Specifications standard. The frequency converter is configured to convert the first radio signal into a second radio signal. The second radio signal has a frequency higher than the predetermined frequency. The transmitter is configured to wirelessly transmit the second radio signal to a customer premises equipment.