Reference signals for downlink beamforming validation in wireless multicarrier MIMO channel
US7720470B2 · kind B2 · utility
12Cited by
0References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2006 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Mar 12, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0051
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Dedicated pilot signals are transmitted from a transmitting device to a receiving device through a multicarrier MIMO channel in addition to data signals and common pilot signals. The dedicated pilot signals may be used by the receiving device to validate whether a predetermined beamforming matrix (i.e., a beamforming matrix identified by the receiving device) was used by the transmitting device to precode the transmitted data. If a different beamforming matrix was used for the preceding, the receiving device may use this matrix to demodulate the received data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.