Title:
INCREASING LINK CAPACITY VIA CONCURRENT TRANSMISSIONS IN CENTRALIZED WIRELESS LANS
Document Type and Number:
WIPO Patent Application WO2002080397
Kind Code:
A3
Abstract:
A system and method for providing concurrent transmission in a wireless Local Area Network (WLAN) are provided. The WLAN includes a plurality of stations for transmitting information via an assigned TDM time slot, and an access point in communication with the stations for monitoring access control and providing time allocation to allow data exchange between multiples pairs of stations, without the intervention of the access point. For establishing concurrent transmission, the access point periodically broadcasts a signal message to the stations over a wireless communication channel to determine pairs of stations that are hidden from each other based on the interference power level reported by each station.
Inventors:
CHOI SUNGHYUN
Application Number:
PCT/IB2002/000915
Publication Date:
December 05, 2002
Filing Date:
March 19, 2002
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
International Classes:
H04B7/26; H04L12/28; H04L12/56; H04W16/14; H04W72/08; (IPC1-7): H04L12/28; H04L12/56; H04Q7/38
Other References:
S. CHOI, S. GRAY, M. KASSLIN, S. MANGOLD, A. SOOMRO: "Transmitter Power Control (TPC) and Dynamic Frequency Selection (DFS) Joint Proposal for 802.11h WLAN", IEEE P802.11 WIRELESS LANS, TRANSMITTER POWER CONTROL (TPC) AND DYNAMIC FREQUENCY SELECTION (DFS) JOINT PROPOSAL FOR 802.11H (IEEE 802.11-01/169), 12 March 2001 (2001-03-12), pages 1 - 16, XP002213584, Retrieved from the Internet [retrieved on 20020916]
ADACHI T ET AL: "A STUDY ON CHANNEL USAGE IN A CELLULAR AD-HOC UNITED COMMUNICATION SYSTEM FOR OPERATIONAL ROBOTS", IEICE TRANSACTIONS ON COMMUNICATIONS, INSTITUTE OF ELECTRONICS INFORMATION AND COMM. ENG. TOKYO, JP, vol. E81-B, no. 7, 1 July 1998 (1998-07-01), pages 1500 - 1506, XP000790184, ISSN: 0916-8516
G. CERVELLO, S. CHOI, S. MANGOLD, A. SOOMRO: "Dynamic Channel Selection (DCS) Scheme for 802.11", IEEE P802.11 WIRELESS LANS, DYNAMIC CHANNEL SELECTION (DCS) SCHEME FOR 802.11 (IEEE 802.11-00/195), 12 July 2000 (2000-07-12), pages 1 - 7, XP002213585, Retrieved from the Internet [retrieved on 20020916]
ADACHI T ET AL: "A STUDY ON CHANNEL USAGE IN A CELLULAR AD-HOC UNITED COMMUNICATION SYSTEM FOR OPERATIONAL ROBOTS", IEICE TRANSACTIONS ON COMMUNICATIONS, INSTITUTE OF ELECTRONICS INFORMATION AND COMM. ENG. TOKYO, JP, vol. E81-B, no. 7, 1 July 1998 (1998-07-01), pages 1500 - 1506, XP000790184, ISSN: 0916-8516
G. CERVELLO, S. CHOI, S. MANGOLD, A. SOOMRO: "Dynamic Channel Selection (DCS) Scheme for 802.11", IEEE P802.11 WIRELESS LANS, DYNAMIC CHANNEL SELECTION (DCS) SCHEME FOR 802.11 (IEEE 802.11-00/195), 12 July 2000 (2000-07-12), pages 1 - 7, XP002213585, Retrieved from the Internet
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