Training frames for MIMO stations
US7486720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2005 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Aug 19, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0413
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method transmits training frames in a MIMO system. A long sequence of training frames is transmitted from a station B to a station A via a channel of the MIMO system, in which the station A includes NA antennas and NASS RF chains and the station B includes NB antennas and NBSS RF chains, and a number of frames in the long sequence of training frames is at least equal towhereis a lower bound operator. A short sequence of training frames is transmitted from the station A to the station B via the channel in response to receiving the long sequence of training frames. A number of frames in the short training sequence is at least equal to
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.