A New Criteria Decision Applied on the Primary Synchronization in theDS-WCDMA Interface of the UMTS System

Authors:
Nour Mohammad Murad;Jean Claude Belfiore;George Rodriguez Guisantes
Affiliations:
ENST – Alcatel CIT Velizy, COM-ELEC Dept., 46, Rue Barrault, 75013 Paris, France E-mail: murad@com.enst.fr;Télécom Paris, COM-ELEC Dept., 46, Rue Barrault, 75013 Paris, France E-mail: belfiore@com.enst.fr;Télécom Paris, COM-ELEC Dept., 46, Rue Barrault, 75013 Paris, France E-mail: rodrigez@com.enst.fr
Venue:
Wireless Personal Communications: An International Journal
Year:
2002

Citing 4
Cited 0

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Abstract

In DS-WCDMA mobile systems such the UMTS, asynchronous cell site operation,assigning different long spreading code to each cell, yields the advantageof flexible system deployment. We can design an indoor system basedon an outdoor one. However, in general, much longer search time isrequired in asynchronous operation than in synchronous. This paperproposes three techniques to take decisions about synchronizationbased on observation of correlated signals. Classical decision criterialike maximum and threshold criterion are presented. A new decisioncriteria that we call Threshold&Max combined decision criteriais analyzed. The results of this new introduced technique is comparedwith the classical ones.