Patent ID: 6665541
Filing Date: 2003-12-16
Classification: G01S,H04B,H04L,H04W

Abstract:
A method for performing time synchronization between at least two basestations comprising a first basestation and a second basestation of a cellular communication system, the method comprising:determining a time-of-day and a location of a first mobile cellular station; transmitting through a first cellular communication link the time-of-day and the location of said first mobile cellular station to said first basestation; determining a time-of-day of said first basestation from said time-of-day and said location of said first mobile cellular station together with a known location of said first basestation; determining a time-of-day and a location of a second mobile cellular station; transmitting through a second cellular communication link the time-of-day and the location of said second mobile cellular station to said second basestation; determining a time-of-day of said second basestation from said time-of-day and said location of said second mobile cellular station together with a known location of said second basestation; wherein said first mobile cellular station and said second mobile cellular station each utilize a co-located satellite positioning system receiver to determine said times of day and said locations of said first and second mobile cellular stations.