Doubts related to 3G/UMTS - In DL we have 15 codes ,while in uplink direction we are using 2SF2 + 2SF4. How the minimum spreading code is allocated in UL direction?
What is channel mapping used in UMTS for Release 7 and Release 8?.. If someone can reply with diagram. It will be more helpful.
In any technology (GSM/CDMA/UMTS/LTE) UL speed is always lesser then DL speed. why?