Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1995-06-27
1997-08-05
Hsu, Alpus H.
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
370347, 370442, 370519, H04B 7212, H04B 726
Patent
active
056549601
ABSTRACT:
A time division multiple access digital transmission system is provided in which the various clock systems in mobile radio stations are derived from the same reference clock signal generator which is controlled with an adjustment signal (adj) which is a function of at least a derivate (TOI.sub.d) of a determined time delay (TOI) between a received time slot position and an expected time slot position. Preferably, the control function also includes a mean (TOI.sub.m) of the determined delay.
REFERENCES:
patent: 3798650 (1974-03-01), McComas et al.
"The GSM System for Mobile Communications: A comprehensive overview of the European Digital Cellular Systems", M. Mouly et al, 1992, pp. 195-216; 227-241.
"Mobile Radio Communications", R. Steele, 1992, pp. 696-698.
"GSM Recommendation GSM 05.10".
Hsu Alpus H.
Schaier Arthur G.
U.S. Philips Corporation
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