Transmitter and transmission method
US8379749B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2008 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Oct 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0689
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transmitter includes multiple transmit antennas, a conversion unit configured to generate multiple signal sequences corresponding to a predefined frequency bandwidth from one or more transmission streams associated with any of the transmit antennas, a precoding unit configured to weight the signal sequences with a precoding matrix selected from a codebook including multiple predefined precoding matrices, and a transmitting unit configured to convert an output signal from the precoding unit into a number of signals corresponding to the number of transmit antennas and transmit the converted signals from the transmit antennas. The precoding unit applies distinct precoding matrices to different signal sequences, and an association between the distinct precoding matrices and the different signal sequences is determined through open-loop control being independent of a feedback from a receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.