Dynamic Beamforming Test Chamber for Wireless Device Orientation
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Solution Overview
Problem
Current 3GPP standards for wireless communication devices require static orientation during testing, limiting the effectiveness of assessing beamforming capabilities, especially for handheld devices that need to adapt beam direction with movement.
Innovation Solution
The method involves rotating a wireless device through various angular orientations within a test chamber while measuring communication performance parameters like MIMO throughput and link quality, allowing for dynamic testing that simulates real-world usage scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If static orientation testing is used according to current 3GPP standards, then testing procedure simplicity is maintained, but beamforming capability assessment effectiveness deteriorates
Solution Approach 1:
The patent applies dynamics by transitioning from static orientation testing to dynamic multi-orientation testing. The wireless device is rotated through multiple angular orientations during testing to simulate real-world movement conditions, enabling assessment of beamforming capabilities under varying spatial conditions while maintaining a structured test procedure.
2Measurement precision
If single orientation testing is used, then testing time is reduced, but measurement precision for beamforming performance deteriorates
Solution Approach 1:
The patent implements periodic action by systematically rotating the wireless device through multiple discrete angular orientations and repeating measurements at each orientation. This periodic sampling of performance metrics across different spatial configurations provides comprehensive precision data while maintaining an efficient structured approach to testing.
3Reliability
If dynamic multi-orientation testing is implemented, then testing comprehensiveness is improved, but device complexity increases
Solution Approach 1:
The patent applies feedback by measuring communication performance metrics (such as throughput and link quality) at each angular orientation and using this feedback information to evaluate beamforming performance. The measured data is analyzed to determine whether the wireless device maintains reliable communication links across different orientations, providing objective assessment of reliability.
Data Source
AI summary
Embodiments include methods of testing wireless devices for beam forming performance. Various aspects may include determining measurements of communication performance of the wireless device at each of a number of different angular orientations of the wireless device with respect to an antenna within a test chamber, and determining whether the wireless device satisfies beam forming performance requirements by comparing the measurements of communication performance to pass/fail criteria. Further embodiments may include a wireless device testing apparatus configured to perform testing wireless devices for beam forming performance. In some embodiments, a wireless device testing apparatus may include a test chamber, an antenna within the test chamber, a rotatable positioning system within the test chamber configured to hold a wireless device and rotate the wireless device within a range of orientations with respect to the antenna, and a computing device coupled to the antenna and the rotatable positioning system.