Communication Station Calibration via Initial Ranging Extraction
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Solution Overview
Problem
Calibrating modern mobile communication stations, particularly those using high radiofrequencies, is becoming increasingly challenging due to the high cost and limited availability of equipment needed to emulate communication connections for calibration.
Innovation Solution
A method and device utilizing an initial ranging procedure to measure channel parameters in a communication channel, comprising a communication emulator, measuring device, and calibrator, which transmit a signal to the communication station to enter an initial ranging mode, measure signal parameters, and calculate necessary calibration adjustments without emulating a complete communication connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complete communication connection emulation is used for calibration, then measurement accuracy is improved, but device cost and complexity increase
Solution Approach 1:
The patent extracts only the essential initial ranging procedure from the complete communication connection, separating the calibration measurement function from the full communication protocol. This allows calibration using minimal equipment (communication station and measuring device) without requiring expensive complete connection emulation infrastructure.
Solution Approach 2:
The calibration process is segmented into a standalone initial ranging procedure that can be executed independently from complete communication sessions. The measuring device captures specific signal parameters (power, timing, frequency) during this isolated ranging phase, enabling calibration without emulating the entire communication connection.
2Measurement precision
If complete communication connection emulation is used for calibration, then calibration accuracy is improved, but calibration time increases
Solution Approach 1:
The patent extracts only the necessary initial ranging procedure from complete communication connections, allowing calibration to be performed during this brief phase rather than requiring time-consuming complete connection establishment and communication sessions.
Solution Approach 2:
The calibration is performed during the initial ranging procedure that occurs automatically when the communication station is first activated or enters a new cell. This preliminary action captures the necessary signal parameters before full communication begins, eliminating the need to wait for complete connection establishment.
3Device complexity
If simple calibration method is used, then device cost is reduced, but measurement capability is limited
Solution Approach 1:
The communication station performs self-calibration by executing its own initial ranging procedure and transmitting signals that are captured by the measuring device. The station's standard transmission protocols are utilized for calibration purposes, eliminating the need for specialized external calibration equipment while maintaining measurement capability.
Solution Approach 2:
The initial ranging procedure serves dual purposes: it is both a standard communication protocol function for channel selection and a calibration measurement opportunity. The same signal transmissions used for normal operation provide the data needed for calibration, making the system multi-functional and eliminating the need for separate calibration infrastructure.
Data Source
AI summary
A device for calibrating a digital communication station uses an initial ranging procedure for measuring channel parameters in a communication channel. The device comprises a communication emulator, a measuring device, and a calibrator. The communication emulator transmits a signal to the communication station which transfers the communication station into an initial ranging mode. The measuring device measures parameters of the signal transmitted by the communication station during an initial ranging cycle. From these measurements the calibrator calculates the necessary calibration adjustments to the communication station and adjusts it accordingly.