| US 7,593,347 B2 | ||
| Method and apparatus to exchange channel information | ||
| Alexander A. Maltsev, Nizhny Novgorod (Russian Federation); Ali S. Sadri, San Diego, Calif. (US); Vadim S. Sergeyev, Nizhny Novgorod (Russian Federation); and Sergey Tiraspolsky, Nizhny Novgorod (Russian Federation) | ||
| Assigned to Intel Corporation, Santa Clara, Calif. (US) | ||
| Filed on Dec. 29, 2003, as Appl. No. 10/746,265. | ||
| Prior Publication US 2005/0143125 A1, Jun. 30, 2005 | ||
| Int. Cl. H04L 12/28 (2006.01) | ||
| U.S. Cl. 370—252 [370/311; 370/338] | 29 Claims |
| 1. A method of communication over a wireless channel comprising:
receiving a request to send (RTS) frame that includes a header which includes a modulation scheme and a bit to select a mode
of feedback channel state information (CSI) exchange scheme to exchange data between two or more stations;
calculating a bit and power loading (BPL) parameter during receiving the RTS frame based on said RTS frame header content;
adapting a physical layer parameter based on exchanged channel information and exchanging over a channel the adapted physical
layer parameter, wherein the physical layer parameter includes a bit and power loading parameter;
applying the calculated bit and power loading parameter to a portion of a clear to send (CTS) frame; and
modulating a portion of the CTS frame based on channel state information and said modulation scheme.
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