H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/41, 340/86
H04B 7/26 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 1202096
ABSTRACT ACCESSING OF TRANSMISSION CHANNELS OF A COMMUNICATION SYSTEM In a communications system with a plurality of subscriber stations independent from each other, where each subscriber station can access according to a multiple access method a joint duplex transmission channel, the probability becomes very large for simultaneous attempts to get access and thereby the probability of signal destruction becomes particularly large. In order to avoid a blockage of the service channel each subscriber station occupies the duplex transmission channel with a short access signal for initiating a transmission starting with the subscriber station. The subscriber station characterized by the position in time and/or the information contents of the signalling short designation call is thereupon invited by the central base station to provide complete identification information. - 32 -
409755
Grauel Christoph
Schmidt Werner
Kirby Eades Gale Baker
Te Ka de Felten Und Guillaume Fernmeldeanlagen G.m.b.h.
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