Article | REF: TE7368 V1

Cellular networks - UMTS system

Author: Jean CELLMER

Publication date: May 10, 2002 | Lire en français

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12. TDD mode

TDD is much less developed than FDD. Being a variant intended for microcellular portions of the 12.2 network, it is not considered a priority by operators and infrastructure manufacturers. The standard itself is still subject to certain evolutions in versions 4 and 5, version 99 having only laid the foundations for the version closest to FDD mode, TDD mode at 3.84 Mc/s.

12.1 Features

The TDD system is by definition implemented in an unpaired frequency band, with both transmission...

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TDD mode

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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...