Beamforming in MIMO communication systems
US8204143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2009 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Oct 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0857
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication terminal includes first and second transmitters, which are coupled to produce respective first and second Radio Frequency (RF) signals that are phase-shifted with respect to one another by a beamforming phase offset, and to transmit the RF signals toward a remote communication terminal. The terminal includes a reception subsystem including first and second receivers and a phase correction unit. The first and second receivers are respectively coupled to receive third and fourth RF signals from the remote communication terminal. The phase correction unit is coupled to produce, responsively to the third and fourth RF signals, a phase correction for correcting an error component in the beamforming phase offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.