| US 7,545,827 B2 | ||
| Busy tone for wireless networks | ||
| Meixia Tao, Hong Kong (China); Yan Wang, Hong Kong (China); Soung C. Liew, Hong Kong (China); Kent Chen, Hong Kong (China); and Vincent Lau, Hong Kong (China) | ||
| Assigned to Hong Kong Applied Science and Technology Research Institute Co., Ltd., Hong Kong (China) | ||
| Filed on Feb. 13, 2004, as Appl. No. 10/778,923. | ||
| Prior Publication US 2005/0180357 A1, Aug. 18, 2005 | ||
| Int. Cl. H04L 12/413 (2006.01) | ||
| U.S. Cl. 370—447 [370/328; 455/296] | 35 Claims |
| 1. A method for providing communication collision avoidance in a wireless network, said method comprising:
detecting receipt of a wireless communication transmission at a node providing communication with a plurality of wireless
devices;
transmitting a signal to be recognized by one or more of said plurality of wireless devices as a busy tone, wherein the transmitted
signal to be recognized as a busy tone is transmitted on a same channel portion as said wireless communication transmission
until said wireless communication is complete; and
performing interference canceling to mitigate interference associated with feedback at said node of the transmitted signal
to be recognized as a busy tone.
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