If interleaving is activated, {TAIL ~ the control information} also includes {HEAD ~ information} pertaining to how the read module should interleave the block 
If interleaving is activated , { TAIL ~ the control information } also includes { HEAD ~ information } pertaining to how the read module should interleave the block
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH