Signal Path Detection Circuit Using Periodic Scanning
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Solution Overview
Problem
Circuit arrangements for radio communication face complexity in reliably detecting transmission signals across multiple radio standards and frequency bands, requiring separate detection circuits for each band and limiting flexibility for future standards.
Innovation Solution
A method where all transmission paths in a circuit arrangement are periodically scanned using a single detector to identify the presence of a transmission signal, activating only the relevant path for the detected frequency band, reducing circuit complexity and enabling flexible matching to various radio standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate detection circuits are used for each frequency band, then reliable detection of transmission signals across multiple radio standards is achieved, but circuit complexity increases significantly
Solution Approach 1:
The patent combines multiple detection circuits for different frequency bands into a single detection circuit. This single circuit sequentially scans through different frequency bands to detect transmission signals, thereby reducing circuit complexity while maintaining reliable detection across multiple radio standards.
Solution Approach 2:
The detection circuit performs periodic scanning of different frequency bands in sequence. By alternating between scanning mode (checking multiple bands) and reception mode (focusing on one band), the system achieves comprehensive signal detection without requiring permanently active detection paths for all bands, thus reducing overall circuit complexity.
2Measurement precision
If detection circuits are designed for specific frequency bands, then accurate detection is achieved, but adaptability to future radio standards is limited
Solution Approach 1:
The patent designs a universal detection circuit that can operate across multiple frequency bands and radio standards. Instead of creating specialized detection circuits for each standard, a single multi-functional circuit scans through different bands adaptively, ensuring both accurate detection and future-proof adaptability without requiring redesign for new standards.
3Reliability
If all transmission paths are continuously monitored, then no transmission signal is missed, but energy consumption increases
Solution Approach 1:
The system implements periodic scanning of transmission paths instead of continuous monitoring. The detection circuit activates only when needed to scan for transmission signals, then returns to a low-power state. This periodic operation maintains detection reliability while significantly reducing energy consumption compared to continuous monitoring of all paths.
Solution Approach 2:
The patent ensures that detection resources are continuously utilized effectively by scanning through different frequency bands in sequence rather than continuously monitoring all bands simultaneously. This approach maintains comprehensive coverage while optimizing energy usage by keeping the detection circuit active only when performing useful scanning or reception functions.
Data Source
AI summary
A method and system for connecting signal paths in a circuit arrangement with multiband capability for processing and/or influencing signals in radio communication, on the basis of which at least the transmission paths of a corresponding circuit arrangement are activated or deactivated on the basis of the presence of a transmitted signal from a terminal which is operated with the circuit arrangement. The transmission paths, which are deactivated in a basic state of the circuit arrangement, are periodically checked in succession for the presence of a transmitted signal from the terminal with a multiplexer that forms a functional component of a detection unit and that is switched through by a controller for sequential scanning of the transmission paths for the presence of such a transmitted signal. If a signal is present, only a transmission path for the correct frequency band of the transmitted signal is activated and continuously checked for the presence of a transmitted signal.