Method for digital transmission of messages

Details Method for digital transmission of messages Method for digital transmission of messages

1983-10-03

1986-08-12

Cangialosi, Salvatore

Pulse or digital communications

Repeaters

Testing

178 2209, 178 2215, 178 2217, H04L 900

Patent

active

046060421

ABSTRACT:
The invention involves a method for digital transmission of messages in a digital radio relay system which utilizes a superframe so additional information can be transmitted with a digital signal. This method eliminates the simulation of a frame alignment signal by service bits. In this invention m superframes each consisting of two half-frames containing a byte for additional bits and in which a scrambling of the digital signals takes place by adding a periodic bit pattern to the digital signal, are combined to form a multiple frame. The pattern used for scrambling has a period equal to the length of the multiple frame.

REFERENCES:
patent: 3127475 (1964-03-01), Coulter
patent: 3798378 (1974-03-01), Epstein
patent: 4369443 (1983-01-01), Giallanza et al.
patent: 4434323 (1984-02-01), Levine et al.
DRS 34/1900-A Digital Radio Relay System for Signal Transmission at 34 Mbit/s, reprint from "telcom report", 6 (1983) No. 1, pp. 7-12, Authors: Hans-Otto Simon and Wolfgang Ulmer.

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