| US 7,570,619 B2 | ||
| Long training sequence method and device for wireless communications | ||
| Christopher J. Hansen, Sunnyvale, Calif. (US); Jason Alexander Trachewsky, Menlo Park, Calif. (US); and Rajendra T. Moorti, Mountain View, Calif. (US) | ||
| Assigned to Broadcom Corporation, Irvine, Calif. (US) | ||
| Filed on Feb. 14, 2005, as Appl. No. 11/56,156. | ||
| Claims priority of provisional application 60/568914, filed on May 07, 2004. | ||
| Claims priority of provisional application 60/545854, filed on Feb. 19, 2004. | ||
| Claims priority of provisional application 60/544605, filed on Feb. 13, 2004. | ||
| Prior Publication US 2005/0180361 A1, Aug. 18, 2005 | ||
| Int. Cl. H04Q 7/00 (2006.01) | ||
| U.S. Cl. 370—334 [370/319; 370/336; 370/370; 455/450; 455/552.1] | 21 Claims |
| 1. A method for transmitting a frame for wireless communication, the method comprising:
determining at least one first training sequence according to a number of antennas for transmitting a frame;
generating a preamble for said frame, said preamble including a second training sequence and said at least one first training
sequence; and
transmitting said preamble with said frame using said number of antennas,
wherein said determining includes deriving a matrix for said at least one first training sequence, and
wherein said deriving includes determining a size for said matrix, wherein said size corresponds to said number of antennas.
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