PRAKTISCHE VORRICHTUNG ZUR DIGITALEN ERZEUGUNG UND KOMBINATION EINER VIELZAHL VON CDMA-/FDMA- SIGNALEN

PRAKTISCHE VORRICHTUNG ZUR DIGITALEN ERZEUGUNG UND KOMBINATION EINER VIELZAHL VON CDMA-/FDMA- SIGNALEN

A modulator system for generating a plurality of individual modulated RF signals and combining them and transmitting them in different frequency channels. The invention provides a practical method and apparatus for generating and combining a multiplicity of CDMA signals in several radio channels usi...

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1. Verfasser: OHLSON, JOHN
Format: Patent
Sprache:ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
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creator OHLSON, JOHN
description A modulator system for generating a plurality of individual modulated RF signals and combining them and transmitting them in different frequency channels. The invention provides a practical method and apparatus for generating and combining a multiplicity of CDMA signals in several radio channels using digital circuitry. Further, several such band segments can be generated in parallel and combined to cover a large bandwidth. The invention generates this multiplicity of signals and combines them at baseband using all digital techniques. The advantage of this approach is a great simplification in hardware and improvement in reliability, as well as flexibility.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
title PRAKTISCHE VORRICHTUNG ZUR DIGITALEN ERZEUGUNG UND KOMBINATION EINER VIELZAHL VON CDMA-/FDMA- SIGNALEN
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