The general structure of a Common Transport Channel frame between Node B and RNC consists of a header and a payload.
Header
Payload: Data or Control Information
General Frame Structure
There are two types of frames (indicated by the Frame Type field).
Data frame.
Control frame.
The general structure of frames
Data frame example:
DL FDD DSCH data frame structure
CRC
FT
CFN
TFI
SF
SP
MC Info
TB
Cyclic Redundancy Checksum
Frame Type
Connection Frame Number
Transport Format Indicator
Spreading Factor
Spare
Multi Code to indicate the number of parallel PDSCH codes
on which the DSCH data will be carried
Transport Block
