As viewed by the receiver, therefore, information in the time slot is bounded on both sides by known sequences; {HEAD ~ the preamble} for {TAIL ~ this slot} and the preamble for the subsequent slot 
for
As viewed by the receiver , therefore , information in the time slot is bounded on both sides by known sequences ; { HEAD ~ the preamble } for { TAIL ~ this slot } and the preamble for the subsequent slot
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH