Patent ID: 7602842

Claim:
A transmission system for transmitting digital signals between a first equipment unit and a second equipment unit of a mobile radio network in accordance with a digital transmission protocol, said first equipment unit and said second equipment unit interconnected by an analog link, the transmission system comprising: means for separating said digital signals into portions, said portions comprising signaling information and voice and/or data information; digital-to-analog converter means for converting said signaling formation and said voice and/or data information into analog signals and for transmitting said converted analog signals on said analog link from the first equipment unit of the mobile radio network; and analog-to-digital converter means for reception of said transmitted analog signals by the second equipment unit of the mobile radio network and for converting said transmitted analog signals into digital form; wherein the first equipment unit and the second equipment unit are connected via said analog link, and wherein the analog signals of the separated portions of said digital signals are transmitted via said analog link, separately.