BT2 signaling is preferably {HEAD ~ a high speed link} that utilizes {TAIL ~ a bandwidth} of variable size sufficient for the transmission of the data 
BT2 signaling is preferably { HEAD ~ a high speed link } that utilizes { TAIL ~ a bandwidth } of variable size sufficient for the transmission of the data
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH