A.动态功率控制
B.跳频
C.迟滞
D.话务分担

A.CM_SERV_REQ
B.COM_L3_INFO
C.SETUP
D.CR

A.MSISDN
B.MSRN
C.TMSI
D.IMSI

A.物理层，连接层，应用层
B.物理层，控制层，连接层
C.控制层，连接层，应用层
D.连接层，网络层，应用层

A.TMSI ALLOCATION
B.AUTHENTICATION REJECT
C.ASSIGNMENT COMMAND

A.LEVEL 3
B.LEVEL 1
C.LEVEL 2

A.4.5.6.7
B.1.2.3.4
C.1.3.5.7
D.1.2.4.7

A.21.15
B.24.75
C.27.45
D.30.15

A.612
B.608
C.592
D.580

A.15bit
B.13bit
C.11bit
D.9bit

A.BSN
B.USF
C.PT（Payload TypE)