3G/UMTS-TDSCDMA

 

 

 

 

Protocol Sequence - Voice Call (MO)

 

    (1) UE <--> NW : Registration (Combined or Non-Combined)

    (2) UE <--> NW : < IDLE >

    (3) UE  : < Make a MO Voice Call >

    (4) UE --> NW : RRC CONNECTION REQUEST

    (5) UE <-- NW : RRC CONNECTION SETUP

    (6) UE --> NW : RRC CONNECTION SETUP COMPLETE

    (7) UE --> NW : CM SERVICE REQUEST

    (8) UE <-- NW : AUTHENTICATION REQUEST

    (9) UE --> NW : AUTHENTICATION RESPONSE

    (10) UE <-- NW : SECURITY MODE COMMAND

    (11) UE --> NW : SECURITY MODE COMPLETE

    (12) UE --> NW : SETUP

    (13) UE <-- NW : CALL PROCEEDING

    (14) UE <-- NW : RADIO BEARER SETUP

    (15) UE --> NW : RADIO BEARER SETUP COMPLETE

    (16) UE <-- NW : ALERTING

    (17) UE <-- NW : CONNECT

    (18) UE --> NW : CONNECT ACKNOWLEDGE