METHOD AND DEVICE FOR DETERMINING POSITION BY USING SMALL NUMBER OF GPS SATELLITES AND SYNCHRONOUS AND ASYNCHRONOUS BASE STATIONS

• Main Author: SOLIMAN SAMIR S
• Format: Patent
• Language: English
• Published: 10.11.2011
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTRONIC TIME-PIECES; HOROLOGY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING; TRANSMISSION; WIRELESS COMMUNICATIONS NETWORKS

PROBLEM TO BE SOLVED: To provide a method and a device for determining a position of a wireless communication device using a global positioning system (GPS) satellite, a base station synchronized with GPS time and a base station non-synchronized with GPS time.SOLUTION: Asynchronous base stations synchronize with each other. Arrival time information is adjusted in consideration of that the wireless communication device receives information biased by one-way delay which is delay in signals notified to the wireless communication device by GPS time information received from the base station. Arrival time difference information for the base station non-synchronized with GPS time enables the bias between base station GPS times to be deleted.