Antenna selection with RF imbalance
US7917107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2006 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Jan 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/061
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for selecting antennas in a multiple-input, multiple-output wireless communications network that includes multiple stations is presented. Each station includes a set of transmit RF chains and a set of receive RF chains, and each RF chain is connectable to a set of antennas. A first station transmits a training frame for each possible subset of the set of antennas, and the set of transmit RF chains are connected to the subset of antennas according to a connection mapping rule while transmitting each training frame. A subchannel matrix is estimated in a second station for each frame. The subchannel matrices are combined to obtain a complete channel matrix. A particular subset of the antennas is selected according to the complete channel matrix. The set of transmit RF chains is connected to the selected particular subset of antennas to transmit data from the first station to the second station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.