Network delay is determined in order to synchronize a clock in a mobile station with a reference clock. Tones are generated that represent a sequence of bits in a synchronization flag. The tones are sampled beginning at a selected sample start time. The sampled tones are demodulated to identify the bit values in the synchronization flag. The demodulator is synchronized with the sampled tones in the synchronization flag by shifting the sample start time until the samples generate an optimum synchronization value. A reference time is then identified according to the optimum sample start time.
申请公布号
WO0199317(A1)
申请公布日期
2001.12.27
申请号
WO2001US19845
申请日期
2001.06.22
申请人
AIRBIQUITY, INC;PRESTON, DANIEL, A.;PRESTON, JOSEPH, D.;LEYENDECKER, ROBERT;EATHERLY, WAYNE;PROCTOR, ROD, L.
发明人
PRESTON, DANIEL, A.;PRESTON, JOSEPH, D.;LEYENDECKER, ROBERT;EATHERLY, WAYNE;PROCTOR, ROD, L.