초록

A method and apparatus for determining any offset between the timing of a communication base station and the timing of a GPS constellation using a remote synchronization station at which the timing of a base station can be measured and compared with known timing to determine an offset.

대표청구항 ▼

1. A remote synchronizing station, including:a) a receiver configured to receive signals from a base station, the time at which signals are transmitted from the base station and the transmission delay being known values; b) a clock, synchronized with clocks present in each of the base stations; c) p

1. A remote synchronizing station, including:a) a receiver configured to receive signals from a base station, the time at which signals are transmitted from the base station and the transmission delay being known values; b) a clock, synchronized with clocks present in each of the base stations; c) processing circuitry, coupled to the receiver and to the clock, configured to: i) measure the time of arrival of signals from the base station; ii) calculate the transmission delay as the difference between the time of arrival and the time of transmission of signals transmitted from the base station; and iii) calculate the difference between the calculated transmission delay and the known transmission delay.