Multi-hop Booster Selective Channel Boosting
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Solution Overview
Problem
Existing repeater and booster devices for GSM communication systems face challenges in supporting wide bandwidths due to frequency hopping, requiring operation across the entire allocated spectrum, which can lead to unintentional interference with other networks and difficulties in meeting spectral regulations, especially in unlicensed bands.
Innovation Solution
A novel two-way communications system that selectively operates within licensed frequencies, using channel and spectrum select algorithms to identify and boost only the necessary channels, ensuring 'network-friendly' operation and compliance with spectral regulations by employing RF transceivers, poly-phase filters, FFT blocks, and ADCs to down-convert and digitize the spectrum, and manage signal strength and channel assignment to maintain bandwidth efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a repeater operates across the entire allocated spectrum to support GSM frequency hopping, then it can support all possible channels, but it causes unintentional interference with other networks and violates spectral regulations
Solution Approach 1:
The patent segments the entire allocated spectrum into specific licensed frequency bands. The repeater is configured to operate only on designated channels within these licensed bands rather than across the entire spectrum, thus supporting necessary channels while avoiding interference with other networks operating in unlicensed or different licensed bands
Solution Approach 2:
The patent applies local quality by assigning different operational characteristics to different frequency segments. The repeater has enhanced functionality (full repeat operation) only in licensed bands where it is authorized to operate, while remaining inactive or highly restricted in unlicensed bands, creating spatial-frequency selective operation patterns
2Adaptability or versatility
If a repeater operates across the entire allocated spectrum, then it can support all GSM channels, but it increases device complexity and bandwidth requirements for consumer devices
Solution Approach 1:
The patent segments the frequency spectrum into licensed and unlicensed bands, and further divides licensed bands into specific channel groups. The repeater is configured to process only relevant channel segments within licensed bands, reducing the total bandwidth that must be handled simultaneously and simplifying the digital link requirements for consumer devices
Solution Approach 2:
The patent applies partial action by having the repeater operate on a subset of the full GSM spectrum - specifically only on licensed frequency bands and designated channels within them. This partial operation is sufficient to support the intended network's frequency hopping requirements while avoiding the complexity of handling the entire allocated spectrum
3Reliability
If a repeater boosts all channels in the allocated spectrum, then it provides comprehensive signal enhancement, but it violates spectral emission mask regulations in unlicensed bands
Solution Approach 1:
The patent segments the spectrum into licensed and unlicensed bands with distinct operational rules. The repeater provides full signal enhancement and repeating functionality only within licensed bands where it has regulatory authorization, while suppressing or eliminating operation in unlicensed bands to comply with spectral emission mask regulations and DFS requirements
Solution Approach 2:
The patent applies local quality by creating spatial-frequency selective operation patterns where the repeater has enhanced functionality (full repeat and boost operation) only in licensed frequency regions, while remaining inactive or highly restricted in unlicensed regions, thus providing reliable signal enhancement where authorized while avoiding regulatory violations
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 system effectively supports wider bandwidths for GSM communications in unlicensed bands, avoiding interference with other networks and meeting spectral regulations, while reducing the bandwidth requirements for consumer devices and ensuring reliable communication.
Implementation Method 1
RF transceivers, poly-phase filters, FFT blocks, and ADCs to down-convert and digitize the spectrum
Implementation Method 2
RF transceivers, poly-phase filters, FFT blocks, and ADCs to down-convert and digitize the spectrum
Implementation Method 3
RF transceivers, poly-phase filters, FFT blocks, and ADCs to down-convert and digitize the spectrum
Implementation Method 4
RF transceivers, poly-phase filters, FFT blocks, and ADCs to down-convert and digitize the spectrum
Data Source
AI summary
A two-way wireless repeater and booster system and method are disclosed. The system and method improve signal quality and strength for the middle hop of a three-hop repeater, between User and Network Units operating in the unlicensed bands (ISM and/or UNII), and supporting the cellular (or wireless) network communications channels. The system and method enables the support of a wider repeat spectrum or bandwidth for a given communications bandwidth in the unlicensed band.