a phase error estimation unit configured to calculate a phase error using {HEAD ~ the pilot symbol} existing in {TAIL ~ the data packet}, the calculated phase error being provided to the symbol transition calculation unit 
existing in
a phase error estimation unit configured to calculate a phase error using { HEAD ~ the pilot symbol } existing in { TAIL ~ the data packet } , the calculated phase error being provided to the symbol transition calculation unit
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH