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Featured researches published by Juha Rapeli.


IEEE Personal Communications | 1995

UMTS: targets, system concept, and standardization in a global framework

Juha Rapeli

UMTS standardization responds to service and mobility requirements for telecommunications after the year 2000. UMTS provides a global and seamless coverage for high quality and user-friendly services ranging from paging or speech up to video or high bit rate data. With the service-oriented open-system concept, flexible radio access system and uncompromized security, UMTS will be the revolutionary step toward third-generation new radio services. The UMTS can be implemented as a radically new system, or when planned over time, as an evolution of existing GSM-based or ISDN-based network components. >


Archive | 1996

Transceiver and method for generating and processing of complex I/Q-signals

Juha Rapeli


Archive | 1996

Keyboard and key and telephone apparatus with such a keyboard

Juha Rapeli


Archive | 1994

Method and apparatus for processing signals

Juha Rapeli


Archive | 1992

Noise elimination method

Markku Renfors; Yrjö Neuvo; Jorma Makinen; Aarne Hannu Kristian Tenhunen; Juha Rapeli


Archive | 1991

INTERPOLATING PHASE-LOCKED LOOP FREQUENCY SYNTHESIZER

Juha Rapeli


Archive | 1994

RF channel simulator

Juha Rapeli


Archive | 1994

Method and circuit arrangement to generate a phase modulated or frequency modulated signal

Juha Rapeli


Archive | 1992

Method and circuitry for demodulation of angle modulated signals by measuring cycle time

Juha Rapeli; Timo Rahkonen; Juha Kostamovaara


Archive | 1996

A method and circuit for creating a modulated signal in a transceiver

Juha Rapeli

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