COORDINATION OF COMPETING PROTOCOLS

WIPO Patent Application WO2004023746

A3

A wireless telecommunications terminal employing both an IEEE 802.11 radio and a Bluetooth radio is disclosed. The illustrative embodiment employs a novel preemption scheme that ensures that Bluetooth preemptions of the 802.11 radio are not fatal to the 802.11 media access control (MAC) error-correction mechanism. The illustrative embodiment thus enables what appears to be concurrent 802.11 and Bluetooth activity by a single wireless telecommunications terminal. The preemption scheme does not require any changes to the 802.11 and Bluetooth protocols, or to the radios. It will be clear to those skilled in the art how to make and use alternative embodiments of the present invention for protocols other than IEEE 802.11 and Bluetooth that might interfere with each other.

GODFREY TIMOTHY GORDON
BOURK TERRANCE RAYMOND

PCT/US2003/028143

July 22, 2004

September 09, 2003

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GLOBESPAN VIRATA INC (US)

H04L12/56; (IPC1-7): H04L12/56; H04L12/28

WO2001084789A2

2001-11-08

US20020003792A1	2002-01-10
US20020018458A1	2002-02-14

CHIASSERINI C F ET AL: "Coexistence mechanisms for interference mitigation between IEEE 802.11 WLANs and bluetooth", PROCEEDINGS IEEE INFOCOM 2002. THE CONFERENCE ON COMPUTER COMMUNICATIONS. 21ST. ANNUAL JOINT CONFERENCE OF THE IEEE COMPUTER ANDCOMMUNICATIONS SOCIETIES. NEW YORK, NY, JUNE 23 - 27, 2002, PROCEEDINGS IEEE INFOCOM. THE CONFERENCE ON COMPUTER COMMUNICA, vol. 1 OF 3. CONF. 21, 23 June 2002 (2002-06-23), pages 590 - 598, XP010593620, ISBN: 0-7803-7476-2
KAMERMAN ET AL: "Coexistence between Bluetooth and IEEE 802.11 CCK Solutions to avoid mutual interference", IEEE P802.11, XX, XX, 30 June 2000 (2000-06-30), pages 1 - 7, XP002256503

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