单项选择题
A.Better cell HO B.Emergency HO C.Low battery HO D.Power budget HO
A.卷积编码 B.加密 C.分组编码 D.交织
A.无SDCCH，无TCH B.无SDCCH，有TCH C.有SDCCH，无TCH D.有SDCCH，有TCH