Over the air (OTA) beamforming testing with a reduced number of receivers
US10462686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Oct 23, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0617
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A testing system tests a device under test (DUT) by emulating at least one radio access protocol. The testing system includes at least one transmitter, multiple receivers, multiple radio frequency (RF) heads, multiple horns, and multiple combiners. The transmitter(s) are configured to use an intermediate frequency for transmission. The receiver(s) are configured to use an intermediate frequency for reception. The RF heads up-convert the intermediate frequency from the transmitter(s) to RF used by the DUT and down-convert the RF used by the DUT to the intermediate frequency used by the receiver(s). The combiners each correspond to a different receiver and combine beamformed signals received from the DUT via two different RF heads and via the horns. The horns transmit RF signals to the DUT and receive RF signals from the DUT using two different polarizations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.