Contents
1 Executive summary..........................................................................4 2 Introduction.......................................................................................4 3 WCDMA Evolved...............................................................................5 4 The concept of HSDPA.....................................................................5 4.1 Shared channel transmission..............................................................6 4.2 Higher-order modulation.....................................................................7 4.3 Short TTI.............................................................................................8 4.4 Fast link adaptation.............................................................................8 4.5 Fast scheduling...................................................................................9 4.6 Fast hybrid ARQ.................................................................................10 5 Operators and end-users will benefit from the introduction of HSDPA...............................................................................................11 5.1 Improved end-user experience...........................................................11 5.2 Improved system capacity..................................................................12 5.3 Integral part of WCDMA......................................................................13 6 Summary............................................................................................14 7 Acronyms..........................................................................................15
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