Edge Modulator IQ Combining for Resilient RF Broadcast Channels
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Solution Overview
Problem
The number of digitally modulated RF channels in communication systems is limited by existing digital modulation technologies, and there is a need for increased resilience to minimize communication service outages.
Innovation Solution
The implementation of edge modulators that combine IQ data streams in the digital domain to optimize RF channel generation, allowing for the reuse of digital broadcast channels and providing redundancy through backup interfaces to ensure continuous service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional digital modulation techniques are used, then implementation is simpler and costs are lower, but the number of RF channels that can be transmitted is limited
Solution Approach 1:
The patent combines multiple IQ data streams in the digital domain to generate multiple RF channels from a single modulation system. By merging multiple digital streams and using digital signal processing to separate them into distinct RF channels, the system increases channel capacity without proportionally increasing hardware complexity.
Solution Approach 2:
The modulation system is designed to perform multiple functions: it can generate multiple RF channels simultaneously, support both unicast and broadcast transmissions, and provide resilient channel generation. This multi-functionality allows a single system to replace what would traditionally require multiple separate modulation systems.
2Reliability
If traditional broadcast modulation is used, then system implementation is straightforward, but resilience to communication service outages is insufficient
Solution Approach 1:
The system implements backup interfaces that are prepared in advance but remain dormant during normal operation. When a primary interface fails, these pre-prepared backup interfaces can immediately take over, providing resilient channel generation. This beforehand cushioning ensures continuity of service without requiring complex real-time switching mechanisms.
Solution Approach 2:
The patent creates backup copies of IQ data streams through backup interfaces that can replicate the primary channel generation function. These copies remain on standby and can be activated to replace failed primary channels, providing redundancy without requiring complete system redesign.
3Productivity
If multiple RF channels are generated independently, then channel diversity is achieved, but system optimization and efficiency are reduced
Solution Approach 1:
The patent merges multiple IQ data streams into a unified digital domain processing path, where a single modulation system generates multiple RF channels simultaneously. This consolidation eliminates the need for multiple independent modulation systems, improving productivity while maintaining channel diversity through digital signal processing.
Data Source
AI summary
Methods, systems, and apparatuses can provide a plurality of RF channels and outputs using digital modulation and combining. In various examples, generation of digital IQ packetized data in combination with digital switching can increase the number of RF modulated channels, optimize broadcast transmission and/or provide transmission resiliency.