{TAIL ~ The soft scaling factors} are applied to the initial symbol estimates to generate {HEAD ~ the soft estimates} 
{ TAIL ~ The soft scaling factors } are applied to the initial symbol estimates to generate { HEAD ~ the soft estimates }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD