Software radio structure for UMTS and second generation mobile communication systems

TitleSoftware radio structure for UMTS and second generation mobile communication systems
Publication TypeConference Paper
Year of Publication1999
AuthorsWiesler, A., H. Schober, R. Machauer, and F. Jondral
Conference NameVehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
Pagination939 -942 vol.2
Keywords8 kbit/s to 2 Mbit/s, air interfaces, baseband functions, cellular radio, code division multiple access, convolutional codes, convolutional decoding, cordless telephone systems, DECT, equalisers, GSM, integrated voice/data communication, MAP algorithm, maximum likelihood decoding, parameter sets, seamless system handover, second generation mobile communication systems, small handhelds, software radio structure, telecommunication standards, third generation mobile communication system, transmitter structure, turbo codes, turbo decoding, UMTS, variable data rates, WBCDMA

The third generation mobile communication system UMTS will enable a very flexible communication technology which means variable data rates from 8 kbit/s speech up to 2 Mbit/s data transmission. But the new standard cannot replace established systems like the European GSM and DECT, instead it is planed as an expansion of the second generation systems. That means future UMTS handhelds must be able to perform second and third generation communication technologies and also seamless system handover. To enable small handhelds and fast system handover an UMTS mobile station can only be realized with a transmitter structure which is totally software programmable, a so called software radio. All baseband functions are implemented in a general, parametrized way, so that all of them can be used for the selected standards by using different parameter sets. The air interfaces of DECT, GSM and WBCDMA have been analysed and common baseband functions have been developed and implemented


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