5. Our services

Because second-generation systems occupy such a large share of the market, the arrival of a new system cannot ignore what already exists, particularly in terms of the services offered. For example, a certain degree of compatibility is guaranteed between services offered on a GSM network and those offered on a UMTS network. The segmentation into bearer services, teleservices and supplementary services, inherited from the ISDN (Integrated Services Digital Network) model, is retained. As soon as the first phase of UMTS, version 99 defined by 3GPP, was introduced, all the services defined in GSM were supported. Specific services are beginning to appear, but all existing services on GSM networks are retained, whether in circuit or packet mode.

What is new, however, is the definition of service quality classes and the negotiation of quality of service (QoS). Not only...

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W-CDMA radio interface

Bibliography

References

(1) - DUARTE (B.) - UMTS : Défis et perspectives. - Revue des Télécommunications Alcatel, 1 ^er trimestre 2001.
(2) - LESCUYER (P.) - UMTS : Les origines, l'architecture, la norme....

Standardization

GSM Release 99 Specifications (Release 99). - 3GPP TS 01.01 V8.1.0 - 2000-12
Principles of circuit telecommunication services supported by a Public Land Mobile Network (PLMN) (Release 99). - 3G TS 22.001 V3.2.0 - 2000-03
Circuit Bearer Services supported by a Public Land Mobile Network (PLMN) (Release 99). - 3G TS 22.002 V3.5.0 - 2000-10
Circuit Teleservices supported by a Public Land Mobile Network...

Regulations

Arrêté du 18 juillet 2001 autorisant la société Orange France à établir et exploiter un réseau radioélectrique de troisième génération ouvert au public et à fournir le service téléphonique au public, published in the Journal officiel on August 21, 2001.

Arrêté du 18 juillet 2001 autorisant la Société française du radiotéléphone à établir et exploiter un réseau radioélectrique de troisième génération...