Data transmission method and equipment
a data transmission and equipment technology, applied in data switching networks, instruments, frequency-division multiplexes, etc., can solve the problems of significantly reducing the user data rate available, complicated solutions, and a traffic channel of a radio interface in a satellite system that is different from the other way around
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The present invention can be applied to data transmission through any traffic channel whatsoever, provided that the data rate of the channel is equal to the user data rate at the terminal interface. The traffic channel can be implemented by any multiple access technique, such as time division multiple access (TDMA) and code division multiple access (CDMA). The invention is obviously applicable in the new 14400 bit / s channel type of the GSM, the 9600 bit / s channel type of the CDMA, and the 4800 kbit / s channel type of the Inmarsat-P satellite system.
The preferred embodiments of the invention will be described below with reference to cooperation of a GSM-based mobile system and the Inmarsat-P satellite system connected to it as a `base station system.` The invention, however, is not to be understood as being limited to these systems.
The structure and the operation of the GSM mobile system, defined in the GSM specifications of the ETSI (European Telecommunications Standards Institute), ...
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