Fast Information Channel - mattpascoe135/dab GitHub Wiki
#FIC Fast Information Channel (FIC): used for rapid access of information by a receiver. In particular it is used to send the Multiplex Configuration Information (MCI) (see clause 6 in etsi) and optionally Service Information and data services (see clause 8 in etsi). The FIC is a non-time-interleaved data channel with fixed equal error protection (see clause 11.2 in etsi).
##Coding in the Fast Information Channel
Each 768-bit vector 
at the output of the energy dispersal scrambler (see clause 10.2) shall be processed as defined in clause 11.1.1.
The first 4I = 3 072 bits of the serial mother codeword U shall be split into 24 consecutive blocks of 128 bits, as defined in clause 11.1.2.
The first 21 blocks shall be punctured as defined in clause 11.1.2, according to the puncturing index PI = 16.
The remaining 3 blocks shall be punctured as defined in clause 11.1.2, according to the puncturing index PI = 15.
This corresponds to a code rate of approximately 1/3.
Finally, the last 24 bits of the serial mother codeword shall be punctured as defined in clause 11.1.2. No padding bits shall be added.
The resulting convolutional codeword is denoted 
.