Jun 202009
User data is carried on one or more DPDCHs.
However, there is a single DPCCH with a fixed spreading factor 256.
The below depicts channelization and scrambling for multiple uplink DPDCHs.
The below shows the transmission with multiple downlink DPDCHs
Note that DPCCH contains TFCI (transport format combination indicator).
This means that TFCI will apply to all DPDCHs at the same time.
Also, spreading facotrs for DPDCHs are the same.
Note that DPDCH data rate varies frame by frame.
