A communication system includes a plurality of channels, a first service that utilizes {HEAD ~ at least a first channel} for {TAIL ~ transmission}, and a second service that utilizes at least a second channel for transmission 
A communication system includes a plurality of channels , a first service that utilizes { HEAD ~ at least a first channel } for { TAIL ~ transmission } , and a second service that utilizes at least a second channel for transmission
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH