Intelligent RF Receiver Protocol-Agnostic Signal Processing
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Solution Overview
Problem
Current solutions for optimizing cellular wireless networks are limited in their ability to quickly and accurately monitor and respond to quality issues across multiple communication protocols and frequency bands, requiring multiple scanning receivers and redundant testing.
Innovation Solution
An intelligent radio frequency receiver capable of receiving and processing signals from multiple frequency bands and communication protocols, including W-CDMA, GSM, CDMA2000, and LTE, without prior knowledge of the protocols, using a modular design with interchangeable RF front ends and a digital back end that modifies signal bandwidth and directs signals to appropriate processing units, ensuring compatibility and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple scanning receivers are deployed to monitor different communication protocols and frequency bands, then measurement coverage is improved, but device complexity and cost increase
Solution Approach 1:
The patent implements a universal receiver architecture that can detect and process multiple communication protocols (CDMA, GSM, LTE, WiMAX) and frequency bands through a single device. The receiver uses protocol-agnostic signal processing that automatically identifies and adapts to different protocols, eliminating the need for multiple dedicated scanning receivers while maintaining comprehensive measurement coverage across all protocols and bands
2Measurement precision
If protocol-specific processing is used for each communication standard, then measurement precision is improved, but processing time and complexity increase
Solution Approach 1:
The patent performs preliminary protocol identification and parameter extraction in the digital domain before committing to protocol-specific processing paths. The receiver initially processes signals in a protocol-agnostic manner to identify the communication protocol type and key characteristics, then applies optimized protocol-specific processing only when needed, reducing overall processing time while maintaining measurement precision
Solution Approach 2:
The patent dynamically adjusts processing parameters based on the detected protocol type and signal characteristics. By changing processing parameters such as bandwidth, sampling rate, and detection thresholds according to the specific protocol being measured, the system achieves high measurement precision for each protocol while avoiding the overhead of fixed protocol-specific processing architectures
Data Source
AI summary
A method a system for receiving signals from plural frequency bands and plural communication protocols. An interchangeable radio frequency (“RF”) front end may receive RF signals from plural frequency bands and plural communication protocols. Intermediate frequency (“IF”) circuitry may produce one or more common IF signals from the received RF signals. A common digital back end may then receive digitized versions of the IF signals, modify IF signal bandwidth as a function of the plural communication protocols, and process plural received signals without knowledge of the underlying communication protocols.