INTERFERENCE BASED CHANNEL SELECTION METHOD IN SECTORIZED CELLS IN A WLAN

WIPO Patent Application WO2005020462

A3

The present invention provides in one embodiment channel allocation and polarization techniques for reducing cross sector communications interference in a multiple access wireless communications environment. In one embodiment, channel allocation and/or polarization techniques may be applied in multiple-access wireless communications architectures to provide selective, simultaneous communications with wireless devices using a plurality of transmitters. In some embodiments, a transmitter is coupled to an antenna configured to provide simultaneous communications with wireless devices located in different spatial areas or sectors. In some embodiments, communications between wireless devices within a single sector, between wireless devices in different sectors and between wireless devices and a wired network or wireless backhaul network may be provided.

SKAFIDAS EFSTRATIOS (AU)
JONES BEN (US)
MORTON JOHN (US)
GIBSON MIKE (US)
KELLY NEIL PATRICK (US)
FESAS NESTOR (US)
BENSON MARK WILLIAM (US)
RUSNAK RICHARD JOHN (US)
GLICK JAMES (US)
DO DUY KHUONG (AU)
MAMMOSYER DOUGLAS A (US)
CHENG LEI (US)
BROE KEVIN SEAN (US)
EKAMBARAM NATARAJAN (US)

PCT/US2004/023901

September 15, 2005

July 23, 2004

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BANDSPEED INC (US)
SKAFIDAS EFSTRATIOS (AU)
JONES BEN (US)
MORTON JOHN (US)
GIBSON MIKE (US)
KELLY NEIL PATRICK (US)
FESAS NESTOR (US)
BENSON MARK WILLIAM (US)
RUSNAK RICHARD JOHN (US)
GLICK JAMES (US)
DO DUY KHUONG (AU)
MAMMOSYER DOUGLAS A (US)
CHENG LEI (US)
BROE KEVIN SEAN (US)
EKAMBARAM NATARAJAN (US)

H01Q1/24; H01Q5/00; H01Q9/04; H01Q25/00; H04B7/04; H04L12/28; H04L12/56; H04W16/14; H04W16/28; H04W72/08; H04W16/24; H04W72/02; H04W72/04; H04W84/12; (IPC1-7): H04L12/28; H01Q1/24; H04Q7/36

WO2002041449A2	2002-05-23
WO1998024258A2	1998-06-04
WO2004049747A2	2004-06-10

EP1156689A1	2001-11-21
US5835859A	1998-11-10
US6323810B1	2001-11-27

GOMES F C ET AL: "REACTIVE GRASP WITH PATH RELINKING FOR CHANNEL ASSIGNMENT IN MOBILE PHONE NETWORKS", PROCEEDINGS OF THE 5TH. INT. WORKSHOP ON DISCRETE ALGORITHMS AND MEHTODS FOR MOBILE COMPUTING AND COMMUNICATIONS. ROME, ITALY, JULY 21, 2001, INTERNATIONAL WORKSHOP ON DISCRETE ALGORITHMS AND METHODS FOR MOBILE COMPUTING AND COMMUNICATIONS, NEW YORK,, 21 July 2001 (2001-07-21), pages 60 - 67, XP001099662, ISBN: 1-58113-421-5
KOU KOBAYASHI ET AL: "Spatially divided channel scheme using sectored antennas for CSMA/CA - directional CSMA/CA", PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, 2000. PIMRC 2000. THE 11TH IEEE INTERNATIONAL SYMPOSIUM ON SEPT. 18-21, 2000, PISCATAWAY, NJ, USA,IEEE, vol. 1, 18 September 2000 (2000-09-18), pages 227 - 231, XP010520636, ISBN: 0-7803-6463-5
VAUGHAN M J ET AL: "InP-based 28 GHz integrated antennas for point-to-multipoint distribution", HIGH SPEED SEMICONDUCTOR DEVICES AND CIRCUITS, 1995. PROCEEDINGS., IEEE/CORNELL CONFERENCE ON ADVANCED CONCEPTS IN ITHACA, NY, USA 7-9 AUG. 1995, NEW YORK, NY, USA,IEEE, US, 7 August 1995 (1995-08-07), pages 75 - 84, XP010154218, ISBN: 0-7803-2442-0

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