WO2008036673B1 - User plane uplink time difference of arrival (u-tdoa) - Google Patents

User plane uplink time difference of arrival (u-tdoa)

Info

Publication number
WO2008036673B1
WO2008036673B1 PCT/US2007/078783 US2007078783W WO2008036673B1 WO 2008036673 B1 WO2008036673 B1 WO 2008036673B1 US 2007078783 W US2007078783 W US 2007078783W WO 2008036673 B1 WO2008036673 B1 WO 2008036673B1
Authority
WO
WIPO (PCT)
Prior art keywords
recited
wireless device
information
wireless
channel
Prior art date
Application number
PCT/US2007/078783
Other languages
French (fr)
Other versions
WO2008036673A3 (en
WO2008036673A2 (en
Inventor
Matthew L Ward
Original Assignee
Trueposition Inc
Anderson Robert J
Matthew L Ward
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to GB0905279A priority Critical patent/GB2454858B/en
Priority to BRPI0717491-8A priority patent/BRPI0717491A2/en
Priority to EP07842704A priority patent/EP2064913A4/en
Priority to JP2009529346A priority patent/JP2010504701A/en
Priority to CN2007800429439A priority patent/CN101622891B/en
Priority to CA002664038A priority patent/CA2664038A1/en
Application filed by Trueposition Inc, Anderson Robert J, Matthew L Ward filed Critical Trueposition Inc
Priority to MX2009002986A priority patent/MX2009002986A/en
Priority to AU2007299915A priority patent/AU2007299915B2/en
Publication of WO2008036673A2 publication Critical patent/WO2008036673A2/en
Publication of WO2008036673A3 publication Critical patent/WO2008036673A3/en
Publication of WO2008036673B1 publication Critical patent/WO2008036673B1/en
Priority to IL197697A priority patent/IL197697A0/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
    • G01S19/06—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data employing an initial estimate of the location of the receiver as aiding data or in generating aiding data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/252—Employing an initial estimate of location in generating assistance data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/254—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to Doppler shift of satellite signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/256—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/258—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to the satellite constellation, e.g. almanac, ephemeris data, lists of satellites in view
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/27—Acquisition or tracking or demodulation of signals transmitted by the system creating, predicting or correcting ephemeris or almanac data within the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer

Abstract

A system for locating a mobile wireless device is configured to communicate with a wireless communications system via a control plane and a user plane. The user plane includes a data channel, and the system includes a server configured to communicate via the data channel with a wireless device to be located. The server obtains from the wireless device information useful for tasking the wireless location system. The information useful for tasking may include information indicative of at least one cell site neighboring a serving cell site with which the wireless device is communicating. This may include information indicative of a serving cell site, a reverse channel through which the wireless device is communicating, and/or a hopping pattern, etc. The system may be used, for example, in connection with a GSM or UMTS wireless communications system.

Claims

AMENDED CLAIMS received by the International Bureau on 14 April 2008 (14.04.2008).
1. A system for locating a mobile wireless device configured to communicate with a wireless communications system via a control plane and a user plane, wherein the user plane comprises a data channel that supports data transmissions from a wireless device, wherein data signaling payload contents in the data channel passes throughthe wireless communications system without examination or modification, and wherein the data channel payload does not inform, control, or modify the operations of the functional elements of the wireless communications system, comprising: a server configured to communicate via said data channel with a wireless device to be located, and to obtain from said wireless device information useful for tasking a wireless location system.
2. A system as recited in claim 1, wherein said information useful for tasking comprises information indicative of at least one cell site neighboring a serving cell site with which the wireless device is communicating.
3. A system as recited in claim 2, wherein said information useful for tasking comprises information indicative of a serving cell site with which the wireless device is communicating.
4. A system as recited in claim 2, wherein said information useful for tasking comprises information identifying a reverse channel through which the wireless device is communicating with a serving cell site.
5. A system as recited in claim 4, wherein said information identifying a reverse channel comprises a frequency assignment.
6. A system as recited in claim 4, wherein said information identifying a reverse channel comprises a channel number assignment.
7. A system as recited in claim 1, wherein said information useful for tasking comprises radio channel information.
i
8. A system as recited in claim 7, wherein said radio channel information comprises information indicative of specific receivers which may be used to locate the wireless device.
9. A system as recited in claim 8, wherein said information indicative of specific receivers includes information identifying a serving cell.
63. A method for locating a mobile wireless device configured to communicate with a wireless communications system via a control plane and a user plane, wherein the user plane comprises a data channel that supports data transmissions from a wireless device, wherein data signaling payload contents in the data channel passes throughthe wireless communications system without examination or modification, and wherein the data channel payload does not inform, control, or modify the operations of the functional elements of the wireless communications system, comprising: configuring a server to communicate via said data channel with a wireless device; obtaining from said wireless device information useful for tasking a wireless location system; and tasking said wireless location system using the information obtained from said wireless device.
64. A method as recited in claim 63, wherein said information useful for tasking comprises information indicative of at least one cell site neighboring a serving cell site with which the wireless device is communicating.
65. A method as recited in claim 64, wherein said information useful for tasking comprises information indicative of a serving cell site with which the wireless device is communicating.
66. A method as recited in claim 64, wherein said information useful for tasking comprises information identifying a reverse channel through which the wireless device is communicating with a serving cell site.
67. A method as recited in claim 66, wherein said information identifying a reverse channel comprises a frequency assignment.
68. A method as recited in claim 66, wherein said information identifying a reverse channel comprises a channel number assignment.
69. A method as recited in claim 63, wherein said information useful for tasking comprises radio channel information.
70. A method as recited in claim 69, wherein said radio channel information comprises information indicative of specific receivers which may be used to locate the wireless device.
71. A method as recited in claim 70, wherein said information indicative of specific receivers includes information identifying a serving cell.
115. A method as recited in claim 114, wherein said wireless communications subsystem comprises a radio receiver and a radio transmitter, and wherein said processor and computer readable storage medium are configured such that said LDP device is primarily limited to use as a gaming device.
116. A method as recited in claim 63, further comprising providing said server in the form of a location enabling server (LES) comprising a processor and a computer readable storage medium, and configuring said LES to communicate with a gaming server and said wireless location system so as to provide government-regulated gaming services to said wireless device.
117. A method as recited in claim 116, wherein the provision of said gaming services is based on the geographic location of said wireless device.
118. A method as recited in claim 117, wherein said processor and computer readable storage medium are configured such that said LES receives requests from said gaming server and provides information to said gaming server, wherein said information is useful by said gaming server in determining what, if any, gaming services are to be provided to said wireless device.
119. A method as recited in claim 118, wherein said processor and computer readable storage medium are configured such that said LES receives requests from said gaming server and requests location information from said wireless location system.
120. A method as recited in claim 63, wherein said method is performed in connection with a GSM wireless communications system.
121. A method as recited in claim 63, wherein said method is performed in connection with a UMTS wireless communications system.
122. A computer readable medium comprising computer readable instructions for instructing a location enabling server (LES) in performing a method for locating a mobile wireless device configured to communicate with a wireless communications system via a control plane and a user plane, wherein the user plane comprises a data channel that supports data transmissions from a wireless device, wherein data signaling payload contents in the data channel passes through the wireless communications system without examination or modification, and wherein the data channel payload does not inform, control, or modify the operations of the functional elements of the wireless communications system, said method comprising: configuring said LES to communicate via said data channel with a wireless device;
164. A computer readable medium as recited in claim 128, wherein said radio channel information comprises information indicative of a pilot PN offset.
165. A computer readable medium as recited in claim 128, wherein said radio channel information comprises information indicative of a reverse pilot channel format.
166. A computer readable medium as recited in claim 128, wherein said radio channel information comprises information indicative of a beta parameter.
167. A computer readable medium as recited in claim 128, wherein said radio channel information comprises information indicative of a long code mask.
168. A computer readable medium as recited in claim 128, wherein said radio channel information comprises information indicative of a spreading factor.
169. A computer readable medium as recited in claim 122, wherein said method comprises the use of an IP -based (Internet protocol-based) interface for communications between the server and the wireless location system.
170. A computer readable medium as recited in claim 169, wherein said IP -based interface employs XML (extensible markup language).
171. A wireless device adapted for use with a system for locating mobile wireless devices configured to communicate with a wireless communications system via a control plane and a user plane, wherein the user plane comprises a data channel that supports data transmissions from a wireless device, wherein data signaling payload contents in the data channel passes through the wireless communications system without examination or modification, and wherein the data channel payload does not inform, control, or modify the operations of the functional elements of the wireless communications system, comprising: a wireless communications subsystem; a processor; and a computer readable storage medium; wherein said device is configured to communicate via said data channel with a server used by said system to provide to said server information useful for tasking a wireless location system.
172. A wireless device as recited in claim 171, wherein said wireless communications subsystem comprises a radio receiver and a radio transmitter, and wherein said processor and
226. A method for use by a wireless device configured to communicate with a wireless communications system via a control plane and a user plane, wherein the user plane comprises a data channel that supports data transmissions from a wireless device, wherein data signaling payload contents in the data channel passes throughthe wireless communications system without examination or modification, and wherein the data channel payload does not inform, control, or modify the operations of the functional elements of the wireless communications system, comprising: communicating via said data channel with a server to provide to said server information useful for tasking a wireless location system to locate said wireless device.
227. A method as recited in claim 226, wherein said information useful for tasking comprises information indicative of at least one cell site neighboring a serving cell site with which the wireless device is communicating.
228. A method as recited in claim 226, wherein said information useful for tasking comprises information indicative of a serving cell site with which the wireless device is communicating.
229. A method as recited in claim 226, wherein said information useful for tasking comprises information identifying a reverse channel through which the wireless device is communicating with a serving cell site.
230. A method as recited in claim 226, wherein said information identifying a reverse channel comprises a frequency assignment.
231. A method as recited in claim 226, wherein said information identifying a reverse channel comprises a channel number assignment.
232. A method as recited in claim 226, wherein said information useful for tasking comprises radio channel information.
233. A method as recited in claim 226, wherein said wireless device is a location device platform (LDP) device.
234. A method as recited in claim 226, wherein said wireless device is configured to operate in connection with a GSM wireless communications system.
235. A method as recited in claim 226, wherein said device is configured to operate in connection with a UMTS wireless communications system.
236. A method as recited in claim 226, wherein said device is configured to operate in connection with a CDMA 2000 wireless communications system.
237. A method recited in claim 226, wherein said device is configured to operate in connection with a WiFi wireless communications system.
238. A method as recited in claim 226, wherein said device is configured to operate in connection with a WiMax wireless communications system.
239. A computer readable medium comprising computer readable instructions for instructing a mobile wireless device in performing a method to assist a system for locating the wireless device, said wireless device configured to communicate with a wireless communications system via a control plane and a user plane, wherein the user plane comprises a data channel that supports data transmissions from a wireless device, wherein data signaling payload contents in the data channel passes throughthe wireless communications system without examination or modification, and wherein the data channel payload does not inform, control, or modify the operations of the functional elements of the wireless communications system, said method comprising: communicating via said data channel with a server to provide to said server information useful for tasking a wireless location system to locate said wireless device.
240. A computer readable medium as recited in claim 239, wherein said information useful for tasking comprises information indicative of at least one cell site neighboring a serving cell site with which the wireless device is communicating.
241. A computer readable medium as recited in claim 239, wherein said information useful for tasking comprises information indicative of a serving cell site with which the wireless device is communicating.
242. A computer readable medium as recited in claim 239, wherein said information useful for tasking comprises information identifying a reverse channel through which the wireless device is communicating with a serving cell site.
243. A computer readable medium as recited in claim 239, wherein said information identifying a reverse channel comprises a frequency assignment.
244. A computer readable medium as recited in claim 239, wherein said information identifying a reverse channel comprises a channel number assignment.
PCT/US2007/078783 2006-09-19 2007-09-18 User plane uplink time difference of arrival (u-tdoa) WO2008036673A2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BRPI0717491-8A BRPI0717491A2 (en) 2006-09-19 2007-09-18 SYSTEM FOR LOCATING A MOBILE WIRELESS DEVICE; Method for locating a wireless mobile device; Computer-readable media; WIRELESS DEVICE AND METHOD FOR USE BY A WIRELESS DEVICE
EP07842704A EP2064913A4 (en) 2006-09-19 2007-09-18 User plane uplink time difference of arrival (u-tdoa)
JP2009529346A JP2010504701A (en) 2006-09-19 2007-09-18 User plane uplink arrival time difference (U-TDOA)
CN2007800429439A CN101622891B (en) 2006-09-19 2007-09-18 User plane uplink time difference of arrival (U-TDOA)
CA002664038A CA2664038A1 (en) 2006-09-19 2007-09-18 User plane uplink time difference of arrival (u-tdoa)
GB0905279A GB2454858B (en) 2006-09-19 2007-09-18 User plane uplink time difference of arrival (u-tdoa)
MX2009002986A MX2009002986A (en) 2006-09-19 2007-09-18 User plane uplink time difference of arrival (u-tdoa).
AU2007299915A AU2007299915B2 (en) 2006-09-19 2007-09-18 User plane uplink time difference of arrival (U-TDOA)
IL197697A IL197697A0 (en) 2006-09-19 2009-03-19 User plane uplink time difference of arrival (u-tdoa)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/533,310 US8150421B2 (en) 2005-12-30 2006-09-19 User plane uplink time difference of arrival (U-TDOA)
US11/533,310 2006-09-19

Publications (3)

Publication Number Publication Date
WO2008036673A2 WO2008036673A2 (en) 2008-03-27
WO2008036673A3 WO2008036673A3 (en) 2008-09-18
WO2008036673B1 true WO2008036673B1 (en) 2008-10-30

Family

ID=39201207

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/078783 WO2008036673A2 (en) 2006-09-19 2007-09-18 User plane uplink time difference of arrival (u-tdoa)

Country Status (12)

Country Link
US (1) US8150421B2 (en)
EP (2) EP2086271A3 (en)
JP (1) JP2010504701A (en)
KR (1) KR101076064B1 (en)
CN (1) CN101622891B (en)
AU (1) AU2007299915B2 (en)
BR (1) BRPI0717491A2 (en)
CA (1) CA2664038A1 (en)
GB (1) GB2454858B (en)
IL (1) IL197697A0 (en)
MX (1) MX2009002986A (en)
WO (1) WO2008036673A2 (en)

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AU2007299915A1 (en) 2008-03-27
US8150421B2 (en) 2012-04-03
BRPI0717491A2 (en) 2013-11-12
WO2008036673A3 (en) 2008-09-18
JP2010504701A (en) 2010-02-12
CN101622891B (en) 2013-02-20
IL197697A0 (en) 2009-12-24
CN101622891A (en) 2010-01-06
AU2007299915B2 (en) 2011-11-24
KR101076064B1 (en) 2011-10-21
KR20090074046A (en) 2009-07-03
WO2008036673A2 (en) 2008-03-27
GB2454858A (en) 2009-05-27
GB0905279D0 (en) 2009-05-13
GB2454858B (en) 2011-02-09
US20070155401A1 (en) 2007-07-05
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MX2009002986A (en) 2009-06-01
EP2064913A4 (en) 2011-01-05

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