Active Antenna Array EIRP Measurement With Oversampled Test Grids
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately determining and reporting effective isotropic radiated power (EIRP) measurements, particularly in active antenna array systems, which can lead to interference with satellites and other aerial vehicles due to insufficient oversampling in beamforming and measurement grids.
Innovation Solution
Implementing oversampling factors in azimuth and elevation to partition beamforming vectors and measurement grids, allowing for more precise EIRP testing and reduced interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional beamforming and measurement grids are used without oversampling, then device complexity and measurement time are reduced, but EIRP measurement precision and reliability deteriorate due to insufficient sampling coverage
Solution Approach 1:
The patent applies oversampling by using more beamforming vectors and measurement grid points than the minimum required for coverage. Specifically, it uses an oversampling factor of 2 in azimuth and 1.5 in elevation, creating a denser sampling grid that exceeds conventional requirements. This excessive sampling action improves measurement precision by capturing more signal variations while the patent manages the resulting complexity through automated processing procedures.
2Measurement precision
If conventional beamforming vectors are used without oversampling, then productivity and measurement speed are improved, but measurement precision deteriorates leading to potential satellite interference
Solution Approach 1:
The patent implements oversampling with factors of 2 in azimuth and 1.5 in elevation, using more measurement points than conventional approaches. This excessive sampling improves precision by capturing finer signal variations across the sky spectrum, while the structured automated measurement procedure manages the increased measurement count efficiently.
Solution Approach 2:
The patent segments the measurement process into distinct phases: configuration reception, signal transmission across multiple beamforming vectors, systematic measurement collection at multiple grid points, and automated error estimation. This segmentation allows the complex oversampled measurement to be broken into manageable steps, maintaining productivity despite increased precision requirements.
3Object-affected harmful factors
If insufficient oversampling is used in beamforming, then device complexity is reduced, but harmful interference with satellites and aerial vehicles increases due to inaccurate EIRP determination
Solution Approach 1:
The patent applies preliminary anti-action by using oversampled beamforming vectors and measurement grids to predict and prevent potential satellite interference before it occurs. By measuring EIRP with higher precision across more directions (oversampling factors of 2 in azimuth and 1.5 in elevation), the system identifies and mitigates potential interference issues in advance, preventing harmful effects rather than reacting to them.
Solution Approach 2:
The patent uses excessive sampling coverage with oversampling factors greater than 1.0 in both azimuth and elevation dimensions. This creates a denser measurement grid that provides more comprehensive sky coverage, enabling better detection of potential satellite interference directions while managing complexity through automated processing.
4Measurement precision
If detailed measurement grids with oversampling factors are implemented, then EIRP measurement accuracy is improved, but measurement time and processing requirements increase
Solution Approach 1:
The patent segments the comprehensive oversampled measurement into organized phases: receiving configuration parameters, transmitting signals across multiple beamforming vectors, collecting measurements at systematic grid points, and performing automated error estimation. This segmentation structures the time-consuming process into manageable sequential steps, improving efficiency despite the detailed measurement requirements.
Solution Approach 2:
The patent implements oversampling with specific factors (2 in azimuth, 1.5 in elevation) that provide enhanced accuracy while being practical for implementation. This partial excessive action goes beyond minimum requirements but remains constrained by practical measurement time considerations, achieving improved accuracy without unlimited time investment.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a measuring device associated with an active antenna array system architecture may measure a set of signals, from a transmitting device, using a measurement grid to determine a set of effective isotropic radiated power (EIRP) measurements. The measuring device may calculate a set of measurement error estimates associated with the set of EIRP measurements. The measuring device may transmit a report indicating the set of EIRP measurements and the set of measurement error estimates. Numerous other aspects are described.