{HEAD ~ The master} using {TAIL ~ a second type} of data on a second occupied bandwidth acknowledges the slaves spectrum request in time slot 8 and subsequently scans the band for available spectrum during time slot 9 
using
{ HEAD ~ The master } using { TAIL ~ a second type } of data on a second occupied bandwidth acknowledges the slaves spectrum request in time slot 8 and subsequently scans the band for available spectrum during time slot 9
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH