问题
单项选择题
以下各消息中不是用Traffic channel来传输的是()。
A.ECAM(Extended Channel Assignment MessagE.
B.ESCAM(Extended Supplemental Channel Assignment MessagE.
C.PSMM(PilotStrength Measurement MessagE.
D.HDM(Handoff Direction MessagE.
答案
参考答案:A