| US 7,522,562 B2 | ||
| Method and system for channel estimation in a spatial multiplexing MIMO system | ||
| Mark Kent, Vista, Calif. (US); Vinko Erceg, Cardiff, Calif. (US); Uri M. Landau, San Diego, Calif. (US); and Pieter Van Rooyen, San Diego, Calif. (US) | ||
| Assigned to Broadcom Corporation, Irvine, Calif. (US) | ||
| Filed on Jun. 30, 2005, as Appl. No. 11/172,756. | ||
| Claims priority of provisional application 60/616778, filed on Oct. 06, 2004. | ||
| Prior Publication US 2006/0072511 A1, Apr. 06, 2006 | ||
| Int. Cl. H04Q 7/00 (2006.01) | ||
| U.S. Cl. 370—334 [375/260] | 24 Claims |
| 1. A method for channel estimation in a communication system, the method comprising:
receiving a plurality of spatially multiplexed communication signals from a plurality of transmit antennas;
generating a plurality of baseband combined channel estimates based on phase rotation in response to said receiving said plurality
of spatially multiplexed communication signals;
generating a channel estimation matrix based on said generated plurality of baseband combined channel estimates in response
to said receiving said plurality of spatially multiplexed communication signals;
generating a plurality of one or both of amplitude correction signals and/or phase correction signals based on said generated
channel estimation matrix; and
adjusting one or both of an amplitude and/or a phase, of at least a portion of said received plurality of spatially multiplexed
communication signals based on said generated plurality of one or both of said amplitude correction signals and/or said phase
correction signals, respectively.
|