Beamforming calibration
US10305564B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2017 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Nov 13, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and computer-readable media for transmitter channel calibration are provided. The method includes generating a plurality of calibration signals corresponding to a plurality of transmitter channels, respectively. The plurality of calibration signals are combined with a plurality of data signals, respectively, thereby generating a plurality of combined signals. The plurality of combined signals are propagated through at least portions of the plurality of transmitter channels, respectively. The plurality of calibration signals are extracted from the propagated plurality of combined signals, respectively. At least two signal characteristics of at least two of the extracted plurality of calibration signals are compared. At least one adjustment in gain, phase, or timing for at least one of the transmitter channels is identified based on a result of the comparing. Based on the identified adjustment, a data signal transmitted via the at least one of the plurality of transmitter channels is adjusted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.