Title:
TRANSMISSION MODE AND RATE SELECTION FOR A WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO2006001909
Kind Code:
A3
Abstract:
To select a transmission mode to use for a data transmission via a MIMO channel from station A to station B, station A obtains channel information used for spatial processing and determines the age of this information. Station A selects one of multiple transmission modes based on the age of the channel information and possibly other information (e.g., the fading characteristic of the MIMO channel). To select rate(s) to use for the data transmission, station A obtains channel state information (CSI) indicative of the received signal quality for the MIMO channel, e.g., received SNRs or "initial" rates. Station A determines the age of the CSI and selects one or more "final" rates based on the CSI, the age of the CSI, the selected transmission mode, and possibly other information. Station A processes data in accordance with the selected transmission mode and final rate(s) and transmits the processed data to station B.
More Like This:
Inventors:
ABRAHAM SANTOSH (US)
MEYLAN ARNAUD (US)
WALTON JAY RODNEY (US)
MEYLAN ARNAUD (US)
WALTON JAY RODNEY (US)
Application Number:
PCT/US2005/015818
Publication Date:
February 02, 2006
Filing Date:
May 05, 2005
Export Citation:
Assignee:
QUALCOMM INC (US)
ABRAHAM SANTOSH (US)
MEYLAN ARNAUD (US)
WALTON JAY RODNEY (US)
ABRAHAM SANTOSH (US)
MEYLAN ARNAUD (US)
WALTON JAY RODNEY (US)
International Classes:
H04J99/00; H04B7/00; H04L1/00; H04B7/06; H04L25/02
Domestic Patent References:
| WO2004038985A2 | 2004-05-06 |
Foreign References:
| US20010024173A1 | 2001-09-27 | |||
| US20040082356A1 | 2004-04-29 | |||
| US20040042556A1 | 2004-03-04 |
Download PDF: