TDOA BASED POSITIONING WITH CALCULATION OF CORRECTION FACTORS FOR COMPENSATING THE CLOCK OFFSETS OF UNSYNCHRONIZED NETWORK STATIONS - Patent 2510376

(19)

(11)

EP 2 510 376 A1

(12)

(43)	Date of publication:
	17.10.2012 Bulletin 2012/42

(21)	Application number: 10704912.4

(22)	Date of filing: 22.01.2010

(51)

International Patent Classification (IPC):

G01S 5/02^(2010.01)

G01S 5/06^(2006.01)

(86)	International application number:
	PCT/EP2010/050747

(87)	International publication number:
	WO 2011/069684 (16.06.2011 Gazette 2011/24)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

(30)

Priority:

10.12.2009 WO PCT/EP2009/066858

(71)	Applicant: Nortel Networks Limited
	St. Laurent, QC H4S 2A9 (CA)

(72)	Inventors:
	BEVAN, David Bishops Stortford Hertfordshire CM23 3NQ (GB) GALE, Simon Bishops Stortford Hertfordshire CM23 3NG (GB)

(74)	Representative: Bird Goën & Co
	Klein Dalenstraat 42A 3020 Winksele 3020 Winksele (BE)

(54)	TDOA BASED POSITIONING WITH CALCULATION OF CORRECTION FACTORS FOR COMPENSATING THE CLOCK OFFSETS OF UNSYNCHRONIZED NETWORK STATIONS