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