Parallel I/Q Signal Analysis for Carrier Aggregation Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Measuring and analyzing communication signals with carrier aggregation is time-consuming due to sequential measurement approaches and complex signal processing.
Innovation Solution
A measurement system that simultaneously captures and processes multiple modulated signals as I/Q data streams in parallel, using digital down conversion and parallel analysis of selected frequency bandwidths, allowing for simultaneous processing of multiple carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sequential measurements are performed for each carrier in a wideband signal, then measurement precision is maintained, but measurement time increases significantly
Solution Approach 1:
The wideband signal is segmented into multiple individual carrier frequency components, allowing parallel processing of each carrier through digital down-conversion and filtering operations, thereby reducing total measurement time while maintaining precision
Solution Approach 2:
The patent transitions from sequential time-based measurement to parallel frequency-domain processing by applying Fast Fourier Transform (FFT) and digital signal processing techniques that simultaneously analyze multiple carriers across the frequency spectrum
2Productivity
If parallel processing of multiple carriers is implemented, then measurement speed increases, but device complexity increases
Solution Approach 1:
The patent replaces complex hardware-based parallel measurement systems with software-based digital signal processing implementations, using FFT algorithms and digital filtering to achieve parallel carrier analysis through computation rather than physical parallelism
Solution Approach 2:
A single measurement system is designed to handle multiple carriers and various modulation types through configurable digital signal processing parameters, eliminating the need for separate dedicated measurement hardware for each carrier frequency
Data Source
AI summary
The invention relates to a measurement system, including a signal analyzer or monitoring receiver, for measuring and analyzing modulated signals. The system includes a signal acquisition device having input port(s), wherein the signal acquisition device is configured to capture modulated signal(s) applied to the input ports, wherein each captured modulated signal can be represented as an I/Q signal; wherein the signal acquisition device generates at least two digital I/Q data streams based on the one or more modulated signals, wherein the at least two digital I/Q data streams are generated in parallel. The measurement system includes a selection device to select at least one target frequency bandwidth in each of the at least two digital I/Q data streams; and a signal processing device configured to analyze the at least two digital I/Q data streams in the selected target frequency bandwidths.