Inshhd National des T6lCwmmicalions. 9 me Charles Fourier, 9101 I Evry ceder, France 'Eode Nationale Suphewe des TCl~muniealions. 46 NE B m d C 75634 Paris, France ' (anne-Rorence.allowhche, djamal.z&lache, $ani.chahed}@inl-eMyfr ~sambtohme@enstfr Absmc-The fmos of thls paper ls the performance 01 the AALUATM banaport technology for the Universal Terrestrial Radio Access Network (UTIUN) in UMTS/lMTZOOO. We psrtlcalarly foalider the c u e of volrr and data strrsmr, wi a service diflDreaUaUon between them coodurtcd at the AALl level by the osc of Weighted Round Robln (WRR) wbcme. We obtlia dored-form exprrsslons for bounds on tbe delay vlolnUon pmbibUC U a for both v o l a and d m frames, 1ddq into account the inpart of WRR ss well U the l"c patterns Inherent to U M T S . Kqwniv-UMTS, UTRAN, AALZIATM, QoS, WRR, AMR voice cod% web tmi~r