In {HEAD ~ the event} {TAIL ~ the estimated delay} spread exceeds the threshold delay spread, an equalizer is selected, otherwise the equalizer is deselected 
In { HEAD ~ the event } { TAIL ~ the estimated delay } spread exceeds the threshold delay spread , an equalizer is selected , otherwise the equalizer is deselected
OTH HEAD HEAD HEAD HEAD HEAD HEAD TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH