| US 7,379,508 B1 | ||
| Frequency-domain method for joint equalization and decoding of space-time block codes | ||
| Naofal Al-Dhahir, Morris Township, Morris County, N.J. (US) | ||
| Assigned to AT&T Corp., New York, N.Y. (US) | ||
| Filed on Jul. 18, 2006, as Appl. No. 11/488,390. | ||
| Application 11/488390 is a continuation of application No. 11/231451, filed on Sep. 21, 2005, granted, now 7,173,976. | ||
| Application 11/231451 is a continuation of application No. 10/026148, filed on Dec. 19, 2001, granted, now 7,092,450. | ||
| Claims priority of provisional application 60/282634, filed on Apr. 09, 2001. | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. H04B 7/02 (2006.01) | ||
| U.S. Cl. 375—267 [375/260] | 1 Claim |
| 1. A transmitter with two antennas, characterized by:
an encoder responsive to blocks of incoming symbols, each block containing N of said incoming symbols, and encoding said N
blocks of incoming symbols into two streams of symbols in pairs of output frames k and k+1, yielding output frame pairs x1k, x1k+1, and x2k, x2k+1, where each of a the frames includes v prefix symbols, each being applied to a different one of said two antennas, where
x1k+1(n)=−x2k((n)N) and x2k+1(n)=x1k((n)N) and (•)N denoted modulo N operation.
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