WCDMA Call Flow

CS Call Flow

作成中。。
RNC                     MSC                   HLR                MSC              RNC

GPRS Call Flow

パケット接続時の代表的なCall Flowです。一部省略している部分や各オペレータの仕様によって異なる部分があります。(Radius等)

RNC                           SGSN                        GGSN                 Radius       Internet
 |Activate PDP Context Request |                           |                     |              |
 |---------------------------->|Create PDP Context Request |                     |              |
 |                             |-------------------------->|Access Request       |              |
 |                             |                           |-------------------->|              |
 |                             |                           |Access Accept        |              |
 |                             |                           |<--------------------|              |
 |                             |                           |Accounting Req(Start)|              |
 |                             |                           |-------------------->|              |
 |                             |                           |Accounting Response  |              |
 |                             |                           |<--------------------|              |
 |                             |Create PDP Context Response|                     |              |
 |Activate PDP Context Accept  |<--------------------------|                     |              |
 |<----------------------------|                           |                     |              |
 |                             |                           |                     |              |
<---------------------------------------------------------------------------------------------->|
                                     User Traffic                                               |
<---------------------------------------------------------------------------------------------->|
 |Deactivate PDP Context Req   |                           |                     |              |
 |---------------------------->|Delete PDP Context Request |                     |              |
 |                             |-------------------------->|Accounting Req(Stop) |              |
 |                             |                           |-------------------->|              |
 |                             |                           |Accounting Response  |              |
 |                             |                           |<--------------------|              |
 |                             |Delete PDP Context Response|                     |              |
 |Deactivate PDP Context Accept|<--------------------------|                     |              |
 |<----------------------------|                           |                     |              |