Power Integrator for RF Beam Measurement
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing radio beams due to high power consumption and slow beam acquisition processes, particularly in devices with multiple antenna elements, as they require activating the entire RF chain for each beam measurement.
Innovation Solution
Incorporating a power integrator and phase shifters in the RF front-end module allows for concurrent power measurements of multiple radio beams without activating the entire RF chain, enabling independent operation and faster beam acquisition by accumulating power levels over time and providing a representative output signal to a controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the entire RF chain is activated for each beam measurement, then measurement accuracy is improved, but power consumption increases
Solution Approach 1:
The RF front-end module is segmented into independent functional blocks (phase shifters, power integrators, antenna elements) that can operate autonomously. This allows only the necessary segments to be activated for beam measurement while keeping other segments in low-power state, resolving the contradiction between measurement accuracy and power consumption.
Solution Approach 2:
A power integrator is introduced as an intermediary component between the antenna elements and the controller. The power integrator accumulates power measurements from multiple antenna elements and provides integrated results to the controller, enabling accurate beam measurement without requiring the entire RF chain to be activated simultaneously.
2Reliability
If the entire RF chain is activated for each beam measurement, then measurement reliability is improved, but beam acquisition time increases
Solution Approach 1:
The power integrator performs preliminary power accumulation from multiple antenna elements in parallel before final beam selection. This preliminary action enables the system to quickly identify candidate beams with high reliability without requiring sequential activation of the entire RF chain, thus reducing beam acquisition time while maintaining measurement reliability.
Solution Approach 2:
The system performs partial beam measurement by activating only the necessary antenna elements and RF front-end components for each measurement cycle. The power integrator accumulates measurements from a subset of antenna elements sufficient for reliable beam acquisition, avoiding the time penalty of activating the entire RF chain while maintaining adequate measurement reliability.
3Device complexity
If multiple antenna elements are measured sequentially, then device complexity is reduced, but productivity decreases
Solution Approach 1:
The antenna array is segmented into multiple independent antenna elements, each with its own phase shifter and power integrator. This segmentation allows parallel measurement of multiple antenna elements without increasing overall device complexity, as each segment operates independently with simple, standardized components. The parallel operation significantly improves beam measurement speed (productivity) compared to sequential measurement.
Solution Approach 2:
Each antenna element is equipped with a universal RF front-end module containing phase shifters and a power integrator that can handle multiple beam measurement functions. This multi-functional design allows the same hardware structure to perform measurements across different beam directions and configurations, enabling parallel operation without proportionally increasing device complexity.
Data Source
AI summary
An apparatus and a system comprising at least one power integrator, method performed by an apparatus comprising at least one power integrator and computer program product for causing an apparatus comprising at least one power integrator to perform: receiving a measure of power level of at least one radio beam detected by an antenna array comprising a plurality of antenna elements, accumulating the received measure of power level over a period of time, determining a representative output signal corresponding to the accumulated measure of received power level and providing the representative output signal to a controller.