Over-the-air channel state information acquirement for a massive MIMO channel emulator with over-the-air connection
US11489598B2 · kind B2 · utility
1Cited by
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24Claims
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Key dates
| Filing date | Apr 21, 2017 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Dec 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0007
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This invention presents a channel emulator for testing a multi-user multiple input multiple output (MU-MIMO) wireless communication system using an over-the-air (OTA) connection between the antennas of a base station (BS) and the channel emulator. It uses pilot signals with special structures to estimate the channel matrix between the BS and the channel emulator, equalizes the channel when performing emulation of the channels between the BS and a plural of user equipment (UEs) in MU-MIMO communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.