Objectif The overall objective of the CODIT project is to explore the potential of code division multiple access (CDMA) for a future high capacity universal mobile telecommunication system (UMTS). An advanced system concept based on CDMA will be established including advanced radio technologies (radio interface, radio transceivers, etc) and advanced sub-system architectures (micro- and pico-cells, macro-diversity, fast and soft handover, frequency management, radio network planning methods, etc). A system demonstrator (testbed) comprising mobile station, radio base station and a radio network controller will be designed and built in order to validate the CODIT system concept.The overall objective of the research was to explore the potential of code division multiple access (CDMA) for a future high capacity universal mobile telecommunication system (UMTS). The research utilises and advanced system concept based on CDMA which includes advanced radio technologies (radio interface, radio transceivers, etc) and advanced subsystem architectures (microcells and picocells, macrodiversity, fast and soft handover, frequency management, radio network planning methods, etc).The system concept is designed to meet the major requirements of a third generation UMTS which are:handling of picocells, microcells and macrocells with a simple deployment of specturm resources allowing multiple operators as well as private networks;indoor and outdoor operation with a high grade of service;support of low power pocket terminals for high quality speech services;easy access to (known) data networks;variable bit rate bearer for advanced data services;the ability to support a large number of users (50% penetration rate).The system testbed is designed to demonstrate:radio transmission performance in an interference limited system handover real time speech transmission;data transmission speech capabilities (lower layers only);radio protocols as far as required for call setup and handover.Technical Approach The CODIT project is divided into three phases: - An analysis phase: producing a broad outline of the system concept by mid 1992.- A system design phase: the system is designed and verified via computer simulation, and a testbed build.- A test and validation phase: the complete testbed is integrated and verified and tests results evaluated. As a result, the specification of the system will be revised at the end of the project. Key Issues The CODIT system concept will meet the major requirements of a third generation UMTS which are: - Handling of pico-, micro- and macro-cells with a simple deployment of spectrum resources allowing multiple operators as well as private networks.- Indoor and outdoor operation with a high grade of service.- Support of low power pocket terminals for high quality speech services.- Easy access to data networks.- Variable bit rate bearer for advanced data services.- Ability to support a large number of users (50% penetration rate). Expected Impact The CODIT project will help to increase the understanding of CDMA and explore its potential for future mobile and personal telecommunications systems. The results of the project will form a valuable input to standardisation work on future generations of mobile radio communication systems in Europe (ETSI) and the world scene. Champ scientifique engineering and technologyelectrical engineering, electronic engineering, information engineeringinformation engineeringtelecommunicationstelecommunications networksdata networksengineering and technologyelectrical engineering, electronic engineering, information engineeringinformation engineeringtelecommunicationsradio technologymobile radionatural sciencesmathematicsapplied mathematicsmathematical model Programme(s) FP3-RACE 2 - Specific research and technological development programme (EEC) in the field of communication technologies, 1990-1994 Thème(s) Data not available Appel à propositions Data not available Régime de financement Data not available Coordinateur ERICSSON RADIO SYSTEMS AB Contribution de l’UE Aucune donnée Adresse THORSHAMNGATAN 21-23 164 80 STOCKHOLM Suède Voir sur la carte Coût total Aucune donnée Participants (11) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire ASCOM TECH AG Suisse Contribution de l’UE Aucune donnée Adresse GEWERBEPARK 5506 MAEGENWIL Voir sur la carte Coût total Aucune donnée British Telecom plc (BT) Royaume-Uni Contribution de l’UE Aucune donnée Adresse British Telecom Centre 81 Newgate Street EC1A 7AJ London Voir sur la carte Liens Site web Opens in new window Coût total Aucune donnée Centro Studi e Laboratori Telecomunicazioni SpA (CSELT) Italie Contribution de l’UE Aucune donnée Adresse Via Guglielmo Reiss Romoli 274 10148 Torino Voir sur la carte Coût total Aucune donnée Compagnie IBM France SA France Contribution de l’UE Aucune donnée Adresse LA GAUDE LABORATORY 06610 LA GAUDE Voir sur la carte Coût total Aucune donnée Deutsche Forschungsanstalt für Luft- und Raumfahrt eV (DLR) Allemagne Contribution de l’UE Aucune donnée Adresse Münchener Straße 20 82230 Weßling Voir sur la carte Coût total Aucune donnée Italtel Società Italiana Telecomunicazioni SpA Italie Contribution de l’UE Aucune donnée Adresse CI1A BUSR-RS-R 20019 Castelletto di Settimo Milanese (MI) Voir sur la carte Coût total Aucune donnée Matra Communication France Contribution de l’UE Aucune donnée Adresse Rue Jean-Pierre Timbaud 78392 Bois d'Arcy Voir sur la carte Coût total Aucune donnée NORTEL MATRA CELLULAR France Contribution de l’UE Aucune donnée Adresse RUE JEAN PIERRE TIMBAUD 78392 BOIS D'ARCY Voir sur la carte Coût total Aucune donnée Philips Research Laboratories Ltd Royaume-Uni Contribution de l’UE Aucune donnée Adresse Cross Oak Lane RH1 5HA Redhill Voir sur la carte Coût total Aucune donnée TELEFONICA DE ESPAÑA Espagne Contribution de l’UE Aucune donnée Adresse EMILIO VARGAS, 4-6 28043 MADRID Voir sur la carte Coût total Aucune donnée TELIA RESEARCH AB Suède Contribution de l’UE Aucune donnée Adresse RUDSJOTERRASSEN 2 13680 HANINGE Voir sur la carte Coût total Aucune donnée