METHOD OF MAINTAINING TIMING REFERENCE FOR MOBILE COMMUNICATION SIGNAL AND METHOD OF MAINTAINING TIMING REFERENCE FOR GPS

PROBLEM TO BE SOLVED: To provide a method of maintaining a timing reference of a mobile communications signal. SOLUTION: An even second clock (ESC) is extracted from a global positioning system (GPS) signal (step 30). The PF offset for a first base transceiver station (BTS) is measured (step 32). Wh...

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Bibliographische Detailangaben
Hauptverfasser:	YOUNG JERRY L, KUNTZ THOMAS L, ELLIOT THOMAS A, MATOS SORAYA J
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of maintaining a timing reference of a mobile communications signal. SOLUTION: An even second clock (ESC) is extracted from a global positioning system (GPS) signal (step 30). The PF offset for a first base transceiver station (BTS) is measured (step 32). When the GPS signal is lost, a timing reference is derived from the first BTS (step 34). Second PN offset for a second BTS is identified based on the derived timing (step 36). COPYRIGHT: (C)2009,JPO&INPIT