The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2008
Filed:
Oct. 14, 2005
Li-chun Wang, Hsinchu, TW;
Kuang-nan Yen, Hsinchu, TW;
Ming-bing Chen, Hsinchu, TW;
Wei-cheng Liu, Hsinchu, TW;
Yu-ren Yang, Hsinchu, TW;
Ping-jung Huang, Hsinchu, TW;
Li-Chun Wang, Hsinchu, TW;
Kuang-Nan Yen, Hsinchu, TW;
Ming-Bing Chen, Hsinchu, TW;
Wei-Cheng Liu, Hsinchu, TW;
Yu-Ren Yang, Hsinchu, TW;
Ping-Jung Huang, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A cross-layer rate adaptation mechanism for wireless local area network (WLAN) can obtain the channel state by calculating the E/Nratio of ACK frame transmitted from the receiver side. The mechanism determines the transmission rate of the next frame by referring to a predefined reduced mode table. When receiving an ACK frame fails, the mechanism can automatically lower the transmitting rate of the next transmission. Therefore, the method can reduce the damage to the system when ACK frame failure happens.