A.UPC B.UC C.HPA D.LNA
A.rA∶rB=4∶1,vA∶vB=1∶2 B.rA∶rB=1∶4,vA∶vB=1∶2 C.rA∶rB=4∶1,vA∶vB=2∶1 D.rA∶rB=1∶4,vA∶vB=2∶1
A.INFORMATION RATE B.OVERHEAD RATE C.COMPOSITE RATE D.TANSMISSION RATE