wcdmacallflow-110925122214-phpapp02

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WCDMA General Call Flow



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2


General servic e flow

General call flow of CS

General service procedure

of PS




3

MO Service Flow

UTRAN CN

AS : PLMN Selection , Cell Selection , RRC Connection Setup , Iu Connection Setup

MM Procedures of NAS : Attach , Security Functions , Location Management;

Start Service : Call Control Procedures of CS , Section Management Procedures of PS , set up the service bearer

MM Procedures of NAS : Detach ( include the IMSI Detach, GPRS Detach )

AS : RRC Connection Release

Switch on

Switch off

AS :RRC

Non Access Stratum : MM/SM/CC/SMS

AS : RANAP

Iu Connection Release

Finish Service : Call Control Procedures of CS , Section Management Procedures of PS, release the service bearer




4

MT Service Flow

UTRAN CN

AS : RRC Connection Setup

MM Procedures of NAS : Security Functions;

IDLE State: NAS: Paging Procedure initiated by CN

Iu Connection Setup

IDLE State:

AS : RRC

Non Access Stratum : MM/SM/CC/SMS

AS : RANAP

Start Service : Call Control Procedures of CS , or Section Management Procedures of PS, set up the service bearer

AS：RRC Connection Release Iu Connection Release

Finish Service : Call Control Procedures of CS , or Section Management Procedures of PS, release the service bearer




5


General service flow


General service procedure

of PS




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UE Call Another UE

HLR

MSC/VLR

1、CM Service request

MSC/VLRMO MT

2、Security Functions

3、Setup

5、Send Routing Information

6、Provide Roaming Number

7、Provide Roaming Number Ack

9、Initial Address Message

10、Page

Connecting

12、Setup2、Security Functions

4、Call Proceeding

8、Send Routing Information Ack


13、Call Confirm




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RNC MSC/ VLR

Initial UE Message (cm service request)

SCCP : CC

RAB Assignment Procedure

Direct Transfer( call proceeding )

Direct Transfer ( alerting)

Direct Transfer ( disconnect : PSTN hang up first )

Direct Transfer( connect ack )

Authentication and Security Procedure

Direct Transfer ( setup )

Direct Transfer( connect )

Connecting

Direct Transfer ( release )

Direct Transfer ( release complete )

Iu release/ SCCP release

PSTN

IAM

ACM

CBK

CLF

RLG

ACM

ANC(ANN)

UE Call PSTN




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PSTN Call UE

RNC VMSC

Initial UE Message (paging response)

SCCP : CC

RAB Assignment Procedure

Direct Transfer( call confiremed )

Direct Transfer ( alerting)

Direct Transfer ( disconnect : UE hang up first )

Direct Transfer( connect ack )

Authentication and Sceurity procedure

Direct Transfer ( setup )

Direct Transfer( connect )

Connecting

Direct Transfer ( release )

Direct Transfer ( release complete )

Iu release/ SCCP release

PSTN

IAM

ACM

CLF

RLG

HLR

MAP_SEND_ROUTING_INFO.

MAP_PROVIDE_ROAMING_NUM.

MAP_PROVIDE_ROAMING_NUM ACK.

MAP_SEND_ROUTING_INFO ACK.Paging

ANC(ANN)

GMSCVMSC

IAM




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General service flow


General s ervice p rocedure

of PS




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Attach Procedure

The CS procedures are similar to the PS in common

procedures of Non Access Stratum. The following procedures

mainly focus on the PS domain.

HLRNew SGSN

Old SGSN

1、Attach Req

2、Identification Req/Rsp

3、Identity Req/Rsp

4、Authentication

4、Authentication

6、Update Location

7、Cancel Location / Ack

8、Insert Subscriber Data/Ack

10、Attach Accept

EIR

5、IMEI Check

5、IMEI Check 9、Update Location Ack

11、Attach Complete




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UTRAN

Service Request

MS Initiated Service Request Procedure :

SGSN

HLR

GGSN

1、RRC Connection Setup

2、Service Request



5、RAB Assignment Req6、RB Setup/

RB Setup Complete

8、SGSN-initiated

PDP Context

Modification

9、UE sends Uplink PDU

4、Service Accept

7、RAB Assignment Rsp




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Section Management PDP Context Activation

UTRAN

SGSN GGSN

1、Activate PDP Context Request

2、Radio Access Bearer Setup

3、Invoke Trace 4、Create PDP Context Rsp

4、Create PDP Context Req

5、Activate PDP Context Accept

UE-initiated PDP Context Activation Procedure：






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UTRAN

Section Management PDP Context Modification

SGSN GGSN

1、Update PDP Context Req

2、Update PDP Context Rsp

3、Modify PDP Context Request

4、Modify PDP Context Accept

5、Radio Access Bearer Modification

6、Invoke Trace

SGSN-Initiated PDP Context Modification Procedure

UE




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Section Management PDP Context Deactivation

UTRAN

SGSN GGSN

1、Deactivate PDP Context Request

5、Radio Access Bearer Release3、Delete PDP Context Rsp

2、Delete PDP Context Req

4、Deactivate PDP Context Accept

MS Initiated PDP Context Deactivation Procedure




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Location Management

Routeing Area Update Procedure

New SGSN

HLROld SGSN

GGSN

1、RAU Request

2、SGSN Context Req/Rsp



5、Update PDP Context Req

5、Update PDP Context Rsp

6、Update Location

7、Cancel Location

8、Insert Subscriber Data ,

Update Location Ack

9、RAU Accept

10、RAU Complete

4、SGSN Context Ack




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Detach Procedure

MS-Initiated Detach Procedure

SGSN GGSN

MSC/VLR

1、Detach Request2、Delete PDP Context

3、IMSI Detach Indication

4、GPRS Detach Indication

5、Detach Accept

6、Release PS Signaling

Connection




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Date post:	03-Jun-2018
Category:	Documents
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