{HEAD ~ A plurality} of {TAIL ~ data blocks} is received over a transmission time interval and the count of data blocks is stored in memory 
of
{ HEAD ~ A plurality } of { TAIL ~ data blocks } is received over a transmission time interval and the count of data blocks is stored in memory
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH