Channel sounding and estimation strategies for antenna selection in MIMO systems
US8498362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2009 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Jan 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0447
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Techniques and devices for antenna selection in a multiple-input-multiple-output (MIMO) system, in which communication is between a transmitter having a first plurality of radio-frequency (RF) chains coupled to a first plurality of antennas and a receiver having a second plurality of RF chains coupled to a second plurality of antennas, are provided. Techniques include receiving consecutive sounding packets each have a training symbol and that collectively sound a full-size channel for the MIMO system. A sub-channel estimate for each sounding packet can then be determined based on various factors, such as a known power level rule and gain factor. Scaling factors may be applied to each of these sub-channel estimates to produce a scaled sub-channel estimates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.