A.Active B.Standby C.Idle D.Ready
A.在分組數(shù)據(jù)物理信道上傳遞N-PDU B.在分組數(shù)據(jù)物理信道上傳遞LLC-PDU C.控制分組數(shù)據(jù)物理信道的建立,且每個(gè)TBF由一個(gè)USF標(biāo)識(shí) D.控制分組數(shù)據(jù)物理信道的釋放,且每個(gè)TBF只能對(duì)應(yīng)一條PDCH
A.MS B.BSS C.SGSN D.GGSN