Some performance results for the downlink shared channel in WCDMA
X. Qiu, Le Chang, Zoran Kostić, T.M. Willis, Neelesh B. Mehta, Larry J. Greenstein, Kapil K. Chawla, James Whitehead, J.C.-I. Chuang · 2003
We study the data performance of WCDMA systems using the downlink shared channel (DSCH) by investigating the impact of loading, rate adaptation and power control for the typical urban (TU) channel. We conclude that, using DSCH, high speed data transmissions can be achieved if the offered traffic load is well controlled. We discuss a heuristic rate adaptation algorithm that adapts the transmission rate based upon the perceived user performance in previous frames. We show that the performance of the rate adaptation is significantly better than that for the fixed-rate allocation policy.