Concurrent EMF Measurement Using Multi-Channel ADC and SSB Beam Identification
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Solution Overview
Problem
Current methods for electromagnetic field (EMF) measurement in cellular networks are inefficient in measuring multiple base stations concurrently, which can lead to inaccurate radiation exposure assessments and delayed detection of network issues.
Innovation Solution
A method and device for performing concurrent EMF measurements of multiple cellular network base stations by identifying synchronization signal block (SSB) beams, receiving signals through multiple antenna modules, digitizing the signals using a multi-channel analog-digital converter, and performing EMF measurements simultaneously for each base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional sequential measurement methods are used for multiple base stations, then measurement accuracy for each base station can be maintained, but measurement time increases and productivity decreases
Solution Approach 1:
The measurement system is segmented into multiple independent measurement channels, each dedicated to a specific base station. Each channel includes its own antenna module, analog-digital converter, and processing path, allowing simultaneous independent measurements from multiple base stations without interference between measurements.
Solution Approach 2:
The patent transitions from sequential time-based measurement to parallel spatial-based measurement by introducing multiple antenna modules and measurement channels operating simultaneously in different spatial dimensions, enabling concurrent measurement of multiple base stations.
2Productivity
If multiple base stations are measured concurrently using multiple antenna modules, then measurement productivity improves, but device complexity increases
Solution Approach 1:
Each antenna module is designed as a universal unit that can measure EMF from any base station. The modules are identical in structure and function, allowing the same hardware design to be reused across multiple channels, which reduces overall system complexity despite the increased number of components.
Solution Approach 2:
The measurement system employs a nested architecture where multiple antenna modules are integrated within a single test device framework. The modules are organized in a hierarchical structure with shared control and processing resources, allowing compact integration while maintaining independent measurement capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables accurate and efficient EMF measurements across multiple base stations, improving radiation exposure assessments and facilitating faster detection of network problems, thereby enhancing network performance and user safety.
Implementation Method 1
digitizing the received signals through a multi-channel analog-digital converter, ADC, of the test device
Implementation Method 2
receiving, at the test device, signals from identified SSB beams through respective antenna modules
Data Source
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AI summary
Accurate and efficient EMF measurements of cellular network components such as multiple base stations are performed concurrently by selecting synchronization signal block (SSB) beams from multiple base stations toward a test device or instructing the base stations to transmit the SSB beams toward the test device. A multi-channel analog-digital converter (ADC) and RF front end combinations may be used to measure the EMF from the base stations concurrently.