| US 7,453,949 B2 | ||
| MIMO receivers having one or more additional receive paths | ||
| Adriaan Kamerman, Nieuwegein (Netherlands); Isabella Modonesi, De Bilt (Netherlands); Tim Schenk, Eindhoven (Netherlands); Xiao-Jiao Tao, Losser (Netherlands); and Allert van Zelst, Woerden (Netherlands) | ||
| Assigned to Agere Systems Inc., Allentown, Pa. (US) | ||
| Filed on Sep. 28, 2004, as Appl. No. 10/952,400. | ||
| Claims priority of provisional application 60/528170, filed on Dec. 09, 2003. | ||
| Prior Publication US 2005/0122998 A1, Jun. 09, 2005 | ||
| Int. Cl. H04B 7/02 (2006.01) | ||
| U.S. Cl. 375—267 | 21 Claims |
| 1. A receiver for receiving M multi-carrier signals transmitted from M transmit antennas, M>1, the receiver comprising:
at least (M+1) receive paths, each receive path adapted to receive the M multi-carrier signals and separate the received signals
into separate subcarrier signals; and
a processor adapted to process the separate subcarrier signals to generate a recovered version of each of the M transmitted
multi-carrier signals, wherein the processor comprises:
a first processing block adapted to receive the separate subcarrier signals from each receive path and to generate M first
signals, each first signal containing (1) desired signal corresponding to one of the transmit antennas and (2) interference;
a second processing block adapted to receive the separate subcarrier signals from each receive path and to generate a second
signal representative of the interference in the M first signals; and
an interference cancellation block adapted to combine each first signal with a portion of the second signal to generate a
recovered signal having less interference than said each first signal.
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