Digital signal transmission system
First Claim
1. 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, andwherein the analog signals of the separated portions of said digital signals are transmitted via said analog link, separately.
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Accused Products
Abstract
In a system for transmitting digital signals between two equipment units of a mobile radio network in accordance with a digital transmission protocol, the equipment units are interconnected by an analog link. The system includes digital-analog converters for converting the digital signals into an analog form and transmitting the converted digital signals on the analog link and analog-to-digital converters for reception of the analog signals and converting the received signal into digital form by one of the equipment units.
10 Citations
18 Claims
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1. 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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A 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 system comprising:
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a separating module separating the digital signals into portions, said portions comprising signaling information and voice and/or data information; a digital-to-analog converter converting the signaling information and the voice and/or data information into analog signals; and an analog-to-digital converter converting said 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. - View Dependent Claims (15, 16, 17)
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18. A method 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 method comprising:
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separating said digital signals into portions, said portions comprising signaling information and voice and/or data information; converting, by a digital-to-analog converter, said signaling information and said voice and/or data information from the first equipment unit of the mobile radio network into analog signals; transmitting said analog signals on said analog link; and converting, by an analog-to-digital converter, said transmitted analog signals into digital form, said converted analog signals received by the second equipment unit of the mobile radio network, wherein the analog signals of the separated portions of said digital signals are transmitted separately.
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Specification