Call Flow Diagram

NORTEL NETWORKS CONFIDENTIAL

Data Flow Diagramsfor V1 & V2 Releases + some V3….

A.Montes - 31/05/2002 – V02.06

Some features still under description. Thanks for reporting any error…

1

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Evolutions

V01.01: 08/10/2001 - A.Montes / updated with ALCAP and Iu UP initV02.01: 05/11/2001 - S.Laboureau / updated with SRLR procedureV02.02: 20/03/2002 - S.Laboureau, V.Paris / Corrections + Iur procedure updatesV02.03: 01/04/2002 - A.Montes / Updated with integrityV02.04: 10/04/2002 - A.Montes / Updated with Call trace messages and Paging(s)V02.05: 15/04/2002 - J.Lee and CallP team in OTW / Call proceeding position corrected in CS call

A.Montes / Updated with Location Services + some RRC timersA.Montes / Always on

V02.06: 15/05/2002 - A.Montes / 2G to 3G HO for CSCell FACH for signalingCompressed Mode

2


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Contents


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Cell configuration

5


DFD Cell confi guration 1/2UE NodeB IN CNODE WG

NBAP Node B Restart Indication

NBAP Cell Setup Request

NBAP Cell Setup Response

AAL-2 CID alloc request

AAL-2 CID alloc response

NBAP Common TRSP Channel Setup Request



NBAP Common TRSP Channel Setup Response

NBAP Common TRSP Channel Setup Request

NBAP Common TRSP Channel Setup Response

CID Allocation forFACH & PCH

CID, TFS forFACH & PCH

CID Allocation forRACH

CID, TFS forRACH

NBAP Node B Ressource NotificationSend once

Start of the Node B

3 X

6


DFD Cell confi guration 2/2UE NodeB IN CNODE WG

NBAP System Info Update Request

NBAP System Info Update Response

Up Cbearer setup request

Up Cbearer setup response

DL Synchronisation

UL Synchronisation

DL Synchronisation

UL Synchronisation

CID, TFS of MAC, RLCFor RACH, FACH & PCH²

Synchro PCH

Synchro FACH

RLC MAC infos forRACH & FACH

3 X

NBAP Common Measurement Initiation Request (reporting frequency)

NBAP Common Measurement Initiation Resp (power information)

NBAP Common Measurement Initiation Report

NBAP Common Measurement Initiation ReportFor each cell


V2 calls


Data call + RL reconfiguration + Integrity + Call trace B

9


DFD Data call - UE terminated 1/5UE NodeB IN CNODE WG

RACH / RRC connection request (IMSI|P-TMSI|IMEI…,Estab cause= Terminating Conversational Call | Streaming |Interactive | Background)



NBAP Radio Link Setup Request

NBAP Radio Link Setup Response

UP DTrCh Setup Request

UP DTrCh Setup Response

UL Synchronisation

DL Synchronisation

UP DBearer Setup Request

UP DBearer Setup Response

FACH / RRC Connection Setup (SRB)

DCH / RRC Connection Setup Complete (START, HFN, UE Security Capability…)

CID Allocation for DCH

CID, TFS for DCH

Transport FormatInformations for DCH

Synchro DCH

RLC MAC infosfor DCH

RRC Measurement Report Traffic Measurement +Intrafrequency Measurement

RRC Measurement Control

500 ms

RANAP/ Paging PCH / RRC Paging (type 1) Paging Request

10



DCH / RRC Initial Direct Transfer (GMM Attach Req) SCCP Connection Req(RANAP Initial UE Msg (GMM Attach Request))

RANAP Direct Transfer(GMM Auth&Ciph Req)RRC Downlink Direct Transfert (GMM Auth&Ciph Req)

RRC Uplink Direct Transfert (GMM Auth&Ciph Resp)

RANAP Direct Transfer (GMM Auth&Ciph Resp)

RANAPSecurity Mode Cmd(UIAs, IK, UEAs, CK, etc.)

RANAP Security Mode Cmp (selected UEA and UIA)

RANAP Direct Transfer (GMM Attach Accept)RRC Downlink Direct Transfert (GMM Attach Accept)

RRC Uplink Direct Transfert (GMM Attach Complete) RANAP Direct Transfer (GMM Attach Complete)

SCCP Connection ConfFirst L3 message with User Identity KSI…

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RRC Security Mode Command (CN domain, UIA, FRESH, UE security capability, UEA, MAC-I, etc.)

&RQWURO RI 8( VHFXULW\ FDSDELOLW\� 9HULI\PHVVDJH� 6WDUW RI LQWHJULW\ DQG FLSKHULQJ

RRC Security Mode Complete (MAC-I, etc.) 9HULI\ UHFHLYHG PHVVDJH� VWDUW FLSKHULQJ

T359

T3360

11



DCH / RRC RB Setup

DCH / RRC RB Setup Complete

RRC Downlink Direct Transfert (SM Activate PDP Context Accept)

RRC Uplink Direct Transfert (SM Activate PDP Context Req) RANAP Direct Transfer (SM Act PDP Ctxt Req)

RAB Assignment Req

DTrCH Reconf Dch Req

UP Dbearer RB add Resp

DTrCH Reconf Dch Resp

UP Dbearer RB add Req

RAB Assignment Resp

RANAP Direct Transfer (SM Act PDP Ctxt Accpt)

<< Paquet Transfert Uplink & Downlink >>

CID Allocation for GTP Tunnel

RLC / MAC infos forTraffic DCH

AAL-2 CID alloc request/response

NBAP Radio Link Reconf PrepareNBAP Radio Link Reconf Ready


RadioLink reconfigurationPreparation phase

When a RAB Assignment Request is received from the Core Network, the RNC will set-up a Traffic and Signalling configuration in the Node B ( new context as seen from the Node B ), set-up the new Node B context at the INode, and will set-up the Traffic configuration to the UE

GTP-U Setup Request

GTP-U Setup Response

New transport FormatInformations for DCH

DHO

ATM

FP FP

DL_SYNC for DTCH

UL SYNC

RANAP.COMMON_ID(Permanent NAS UE Identity)

T353

TRABAssgnt

NBAP Radio Link Reconf Commit

T3380

12


DFD Data call - UE terminated 4/5

UE NodeB IN CNODE WG

RRC Downlink Direct Transfert (SM Desactivate PDP Context Accept)

RRC Uplink Direct Transfert (SM Desactivate PDP Context Req)

RANAP Direct Transfer (SM Desact PDP Ctxt Accpt)

RANAP Direct Transfer (SM Desact PDP Ctxt Req)

RRC Uplink Direct Transfert (GMM Detach Request)RANAP Direct Transfer (GMM Detach Request)

RRC Downlink Direct Transfert (GMM Detach Accept)

RANAP Direct Transfer (GMM Detach Accept)

RANAP_IU_Release_Cmd RRC Connection Release

13




SCCP Disconnect Cmp

GTP-U Release Request

GTP-U Release RespRANAP_Iu_Release Cmp

RRC Connection Release Complete

UP Dbearer RB deletion Resp

UP Dbearer RB deletion Req

NBAP Radio Link Deletion Request

NBAP Radio Link Deletion Response

AAL2 CID Release Req

AAL2 CID Release Resp

UP DTrCh deletion Resp

UP DTrCh deletion Req

MAC / RLC release

FP release

CID DCH release

GTP Tunnel release

SCCP Disconnect_Req


Speech call + RL reconfiguration+ Call trace A

15


DFD Speech - UE ori ginator call 1/6


RACH / RRC connection request (Originating Conversational Call | Streaming | Interactive |Background ,Subscribed traffic Call,Emergency Call,Inter-system cell re-selection,Registration,Detach,SMS,Call re-establishment)







UL Synchronisation

DL Synchronisation



FACH / RRC Connection Setup (U-RNTI)

DCH / RRC Connection Setup Complete


CID, TFS for DCH


Synchro DCH



500 ms


16


DFD Speech - UE ori ginator call 2/6UE NodeB IN CNODE WG

DCH / RRC Initial Direct Transfer (MM Location Update Request)

RANAP Direct Transfer (MM Authentification Req)RRC Downlink Direct Transfert (MM Authentification Req)

RRC Uplink Direct Transfert (MM Authentification Resp)RANAP Direct Transfer (MM Authentification Resp)

RANAP Direct Transfer (MM Loc Update Accept)

RRC Downlink Direct Transfert (MM Location Update Accept)

RANAPSecurity Mode Cmd

RANAP Security Mode Cmp

SCCP Connection Req(RANAP Initial UE Msg (MM Loc Update Reqt))

SCCP Connection Conf

RANAP.CN_INVOKE_TRACE

T3260

17




DCH / RRC RB Setup

RRC Uplink Direct Transfert (MM CM Service Request) RANAP Direct Transfer (MM CM Service Req)

RAB Assignment Req AAL-2 CID Alloc Req


AAL-2 CID Alloc Resp


RRC Downlink Direct Transfert (MM CM Service Accept)

RANAP Direct Transfer (MM CM Service Accept)

RRC Uplink Direct Transfert (CC Setup) RANAP Direct Transfer (CC Setup)

2 CIDs Allocation for AMR speech (Iu & Iub)


RRC Uplink Direct Transfert (MM TMSI Relocation Complete) RANAP Direct Transfer (MM TMSI Relocation Complete)

When a RAB Assignment Request is received from the Core Network, the RNC will setup a Traffic and Signalling configuration in the Node B ( new context as seen from the Node B ), setup the new Node B context at the INode, and will setup the Traffic configuration to the UE.

DTrCH Reconf DCH Req

DTrCH Reconf DCH Resp

NBAP Radio Link Reconf Prepare

NBAP Radio Link Reconf Ready

ERQ/ECF


DL_SYNC for DTCH

UL SYNCUP Initialization / Ack

RANAP Direct Transfer (CC Call Proceeding)RRC Downlink Direct Transfert (CC Call Proceeding)

18





RAB Assignment Resp

RANAP Direct Transfer (CC Alerting)

DCH / RRC Downlink Direct Transfert (CC Alerting) RANAP Direct Transfer (CC Connect)

DCH / RRC Downlink Direct Transfert (CC Connect)

DCH / RRC Uplink Direct Transfer ( CC Connect Ack)RANAP Direct Transfer (CC Connect Ack)

On reception of the RB Setup Complete message, the RNC has to release the resources used on the signalling stand-alone configuration (link1).

19



RRC Downlink Direct Transfert (CC Release)

RRC Uplink Direct Transfert (CC Disconnect)

RANAP Direct Transfer (CC Release)

RANAP Direct Transfer (CC Disconnect)

RANAP_IU_Release_Cmd

RRC Connection Release



UP Dbearer RB deletion ReqMAC / RLC release

20



RANAP_Iu_Release Cmp









FP release

CID DCH release

CID for AMR speechrelease

SCCP Disconnect Cmp

SCCP Disconnect_Req

RELREQ

RLC


V2 IUR

22


IUR - DFD Call establishment 1/3UE NodeB IN CNODE WG

RACH / RRC connection requestAAL-2 CID alloc request






UL Synchronisation

DL Synchronisation






CID, TFS for DCH


Synchro DCH


2 X



500 ms


23


IUR - DFD Call establishment 2/3


DCH / RRC Initial Direct Transfer (GMM Attach Req)

SCCP Connection Req(RANAP Initial UE Msg (GMM Attach Request))

RANAP Direct Transfer (GMM Auth&Ciph Req)

RRC Downlink Direct Transfert (GMM Auth&Ciph Req)

RRC Uplink Direct Transfert (GMM Auth&Ciph Resp) RANAP Direct Transfer (GMM Auth&Ciph Resp)



RANAP Direct Transfer (GMM Attach Accept)

RRC Downlink Direct Transfert (GMM Attach Accept)



24


IUR - DFD Call establishment 3/3


DCH / RRC RB Setup



RRC Uplink Direct Transfert (SM Activate PDP Context Req) RANAP Direct Transfer (SM Act PDP Ctxt Req)RAB Assignment Req

DTrCH Reconf Dch Req


DTrCH Reconf Dch Resp


RAB Assignment Resp





AAL-2 CID alloc request AAL-2 CID alloc response



RadioLink reconfigurationPreparation phase


GTP-U Setup Request



DHO

ATM

FP FP


25


IUR - DFD SHO over IUR – RL Addition 1/1UE SNodeB S CNode DNodeB

RRC Measurement Report

SCCP connection Request

SCCP connection Response

RNSAP RL setup Request

NBAP RL setup RequestNBAP RL setup Response

RNSAP RL setup Response

QAAL2 Estab Req

QAAL2 Estab CFM

QAAL2 Estab Req

1 Cid for SRB1 Cid for TRB


QAAL2 Estab CFM

RRC Active set UpdateRRC Active set Update Complete

S INode D CNode D INode

CID Allocation Req/Resp

DTrCh Setup Req/Resp


CID Required Req/Resp


UP_Dbearer_Proxy_Setup_Req/Resp

CID Required Req/RespUP_Dbearer_Proxy_Reconf_Req/Resp

DTrCh Setup Req/Resp

26


IUR - DFD SHO over IUR – RL Deletion 1/1UE SNodeB DNodeB


SCCP Disconnect Request

RNSAP RL deletion Request

NBAP RL deletion RequestNBAP RL deletion Response

RNSAP RL deletion Response

QAAL2 Release Req

QAAL2 Release CFM

QAAL2 Release Req

1 Cid for SRB1 Cid for TRB


QAAL2 Release CFM

RRC Active set Update

RRC Active set Update Complete

S CNodeS INode D CNode D INode

CID Release Req/Resp


DTrCh Reconf Req/Resp

UP_Dbearer_Proxy_Delete_Req/Resp

DTrCh Deletion Req/Resp




27


IUR - DFD Call release 1/2










28


IUR - DFD Call release 2/2


SCCP Disconnect Cmp












MAC / RLC release

FP release

CID DCH release

GTP Tunnel release

SCCP Disconnect_Req


SOFT(ER)-HANDOVERS

30


Softer Handover case 1/3UE NodeB IN CNODE WG



Active Set Update

Evaluation

Active Set Update

Evaluation

Softer HO : Addition of Radio Links

NBAP Radio Link Addition Request

NBAP Radio Link Addition Response

RRC Active Set Update


RRC Active Set Update Complete




Optional Message

T355

31



Softer HO : Removal of Radio Links


Active Set Update

Evaluation

Active Set Update

Evaluation









Optional Message


32



Softer HO : Combined Addition/Removal of Radio Links


Active Set Update

Evaluation

Active Set Update

Evaluation









Optional Message

NBAP Radio Link Addition Request

NBAP Radio Link Addition Response


33


Soft Handover case 1/3UE NodeB IN CNODE Node B # 2

Active Set Update

Evaluation




AAL-2 CID alloc response NBAP Radio Link Setup Request

NBAP Radio Link Setup ResponseUP DTrCh Reconfig

RL Request

UP DTrCh Reconfig RL Response

Soft HO : Addition of Radio Links





Optional Message

RRC Measurement Report500 ms

34



Soft HO : Removal of Radio Links

Active Set Update

Evaluation





AAL-2 CID release request

AAL-2 CID release response

UP DTrCh Reconfig RL Request






35



Soft HO : Combined Addition/Removal of Radio Links

Active Set Update

EvaluationRRC Measurement Report


AAL-2 CID alloc requestNBAP Radio Link Setup Request






RRC Active Set Update CompleteUP DTrCh Reconfig RL RequestUP DTrCh Reconfig RL Response



AAL-2 CID release request

AAL-2 CID release response




HARD-HANDOVERS

37


Compressed ModeUE NodeB IN CNODE CORE


RACH / RRC connection request

FACH / RRC Connection Setup (GSM Capability required)

DCH / RRC Connection Setup Complete (UE Radio Access Capability)

DCH / RRC RB Setup

RAB Assignment Req



DTrCH Reconf DCH Req/Resp

NBAP Radio Link Reconf Prepare (DTCH config, CM config)


ERQ/ECF

NBAP Radio Link Reconf Commit (no pattern active)

DL_SYNC for DTCHUL SYNC

UP Initialization / Ack

DCH / RRC RB Setup Complete RAB Assignment Resp


NBAP Compressed Mode Command (active pattern, starting CFN)

DCH / RRC Measurement Control (active pattern, starting CFN)

Based on criteria

(CS call)

L3

38


2G to 3G handover for CSUE NodeB IN CNODE

BSSMAP.HO_Required ()

WG 3G-MSC/VLR 2G-MSC/VLR BSS

MAP.Prepare_Handover (HO_Request)

RANAP.Relocation_Request (Src to target RNC trsp info)

RR/InterSystem to UTRAN Handover Command (HO to UTRAN command)



QAAL2 Estab ReqQAAL2 Estab CFM

RANAP.Relocation_Request_Ack (HO_to_UTRAN_Command)

MAP.Prepare_Handover_Ack (HO_Request_Ack)

BSSMAP.HO_Command ()

RRC.Handover_Complete

RANAP.Relocation_Detect ()

RANAP.Relocation_Complete ()MAP.Process_Access_Signaling(HO_Detect)

MAP.Send_End_Signal

BSSMAP.Clear_Command ()

BSSMAP.Clear_Complete ()

39


Interfrequenc y intra RNC / intra Cell – Success



RRC RB RECONFIGURATION (timer maintained)

RRC RB RECONFIGURATION COMPLETE

UE NodeB IN CNODE CORE

CS or PS CALL ESTABLISHMENT



I/F HHO conditionsAre satisfied



UP DTrCh Reconfig RL RequestUP DTrCh Reconfig RL Response







Old link

New link

40


Interfrequenc y intra RNC / intra Cell – Failure



RRC RB RECONFIGURATION (timer maintained)

RRC RB RECONFIGURATION FAILURE

UE NodeB IN CNODE CORE

CS or PS CALL ESTABLISHMENT



I/F HHO conditionsAre satisfied



UP DTrCh Reconfig RL RequestUP DTrCh Reconfig RL Response







New link

New link


PAGING(s)

42


Paging type 1

UE NodeB IN CNODE Core

RACH / RRC connection request (speech)AAL-2 CID alloc request






UL Synchronisation

DL Synchronisation





2 X

RANAP.Paging

RRC.Paging over PCH

UP_CBEARER_PAGING_REQUEST(UE IMSI, CN Domain id, ASN. 1 encoded paging record DRX Cycle length coefficient (0),

multicastId)

43


Paging type 2 (UE dedicated pa ging)UE NodeB IN CNODE WG

SCCP Connection Req(MM CM Service Req)

RACH / RRC connection request (speech)AAL-2 CID alloc req/resp

NBAP Radio Link Setup Request/ResponseUP DTrCh Setup Request/ResponseDL Sync/UL SyncUP DBearer Setup Request/ResponseFACH / RRC Connection Setup (U-RNTI)



RRC Uplink Direct Transfert (MM CM Service Request)

DCH / RRC RB Setup

RAB Assignment Req AAL-2 CID Alloc Req/Resp



RRC Uplink Direct Transfert (CC Setup)RANAP Direct Transfer (CC Setup)

DTrCH Reconf DCH Req/Resp


ERQ/ECF


DL_SYNC for DTCHUL SYNC

UP Initialization / Ack

DCH / RRC RB Setup CompleteRAB Assignment Resp

RANAP.Paging

RLC_DATA(UE IMSI, CN Domain id, ASN. 1 encoded paging record DRX Cycle length coefficient (0))

RRC.Paging TYPE 2 over Dedicated Signaling Channel

44


Location Services: Network requestUE NodeB IN CNODE

External LCS client

PAGING

LCS Service Request

WG VMSC HLR GMLC

LCS Service Response (UE location estimate)

Send Routing Info for LCS

Send Routing Info for LCS ack (@VMSC…)

Provide Subscriber Location(Loc info requested, IMSI, LCS QoS…)

Establishment on SRB + SCCP connection + Authentication/Ciphering

DL_Direct_Tranfer.LCS Location Notification Invoke (type of loc. request…)

UL_Direct_Tranfer.LCS Location Notification Result (type of supported location (UE loc. Cap.)

Location Reporting Control (type of loc., UE loc. Cap., req QoS, Request Type [report directly | report upon change of Service area | stop reporting] )

Location Report

Provide Subscriber Location Result

25413: The location information is either of the following types:

-Service Area Identifier, or

-Geographical coordinates, with or without requested accuracy.

45


Location Services: UE requestUE NodeB IN CNODE 3G MSC

Authentication/Ciphering/CM Service Accept

LCS Location Services Invoke

RANAP.Location Reporting Control (type of loc., UE loc. Cap., req QoS, Request Type [report directly | report upon change of Service area | stop reporting] )

RANAP.Location Report

RACH / RRC connection requestFACH / RRC Connection SetupDCH / RRC Connection Setup Complete

DCH / RRC Initial Direct Transfer (CM Service Request) SCCP Connection Req(RANAP Initial UE Msg (CM Servie Request)

SCCP Connection ConfEmergency Call

LCS MO-LR Return Result

46


Alwa ys onUE NodeB IN CNODE Core

Measurement Report

Radio_Bearer_Reconfiguration_Request (UL DPCH, DLL DPCH, TrCH to modify, CFN activation time)

Up_DTrCH Reconf Dch Req (DCH to modify, New power Control Infos)

Up_DTrCH Reconf Dch Resp

NBAP Radio Link Reconf Prepare (DCH to modify, UL DPCH, DL DPCH, RL info)


NBAP Radio Link Reconf Commit (CFN activation time)

Up_D_Bearer_RB_Modification_Req (New TFCS, deltaCFN, Fmax)

Up_D_Bearer_RB_Modification_Resp

Radio_Bearer_Reconfiguration_Complete

PS CALL ESTABLISHMENT or RETURN TO PS DATA ONLY (from multi service for instance)

Always-on decision

Measurement Control RequestMeasurement Control Response

Measurementsession creation (after RAB ass

response)

Measurement Control RequestMeasurement Control Response

New measurementsession creation

47


Cell FACH for si gnalin gUE NodeB IN CNODE WG


FACH / RRC Connection Setup (C-RNTI, U-RNTI)

RACH / RRC Connection Setup Complete (START, HFN, UE Security Capability…)

FACH / RRC Initial Direct Transfer (First L3 msg)SCCP Connection Req(RANAP Initial UE Msg (First L3 Message)


Any other L3 message on RACH/FACH

SCCP Disconnect Cmp


SCCP Disconnect_Req

RANAP_IU_Release_Cmd FACH/RRC Connection Release

RACH/RRC Connection Release Complete



UP DBearer Deletion Request

UP DBearer Deletion Response

48


Cell FACH for Data call establishmentUE NodeB IN CNODE WG


FACH / RRC Connection Setup (C-RNTI, U-RNTI)

RACH / RRC Connection Setup Complete (START, HFN, UE Security Capability…)


Any other L3 message on RACH/FACH

UP DBearer Setup RequestUP DBearer Setup Response

FACH / RRC Initial Direct Transfer (MM.Service Request)

SCCP Connection Req(RANAP Initial UE Msg (MM Service Request))

FACH / RRC RB SetupDCH / RRC RB Setup Complete

RAB Assignment Req

RAB Assignment Resp


DTrCH Setup Req


DTrCH Setup Resp


NBAP Radio Link Setup ReqNBAP Radio Link Setup Resp

GTP-U Setup Request


DL_SYNC for DTCH

UL SYNC


9�


Data call + RL swapping

51



RACH / RRC connection requestAAL-2 CID alloc request (SRB & TRB; 2 CID requested)


NBAP Radio Link Setup Request (link1: SRB)


UP DTrCh Setup Request (SRB+TRB)


UL Synchronisation

DL Synchronisation






CID, TFS for DCH


Synchro DCH


2 X



500 ms

After a RRC Connection_Setup_Request sent by the UE, the CNode willSet-up an signalling stand-alone configuration in the Node B and the UE, buta transport traffic and signalling configuration in the INode.


52




DCH / RRC Initial Direct Transfer (GMM Attach Req)

SCCP Connection Req(RANAP Initial UE Msg (GMM Attach Request))

RANAP Direct Transfer (GMM Auth&Ciph Req)

RRC Downlink Direct Transfert (GMM Auth&Ciph Req)

RRC Uplink Direct Transfert (GMM Auth&Ciph Resp) RANAP Direct Transfer (GMM Auth&Ciph Resp)



RANAP Direct Transfer (GMM Attach Accept)

RRC Downlink Direct Transfert (GMM Attach Accept)



53




DCH / RRC RB Setup



RRC Uplink Direct Transfert (SM Activate PDP Context Req) RANAP Direct Transfer (SM Act PDP Ctxt Req)

RAB Assignment Req

DTrCH Reconf RL Req


DTrCH Reconf RL Resp


RAB Assignment Resp





AAL-2 CID alloc request (SRB & TRB)


NBAP Radio Link Setup Request (link2: SRB + TRB)


CID Allocation for DCH(SRB & TRB)

CID, TFS for DCHLink 2


GTP-U Setup Request


On reception of the RB Setup Complete message, the RNC has to release the resources used on the signalling stand-alone configuration (link 1).


DHO

ATM

FP FP

54












55




SCCP Disconnect Cmp












MAC / RLC release

FP release

CID DCH release

GTP Tunnel release

SCCP Disconnect_Req


Speech call + RL swapping

57




RACH / RRC connection request (speech)AAL-2 CID alloc request (SRB & TRB; 2 CIDs requested)


NBAP Radio Link Setup Request (link1: SRB)


UP DTrCh Setup Request (SRB & TRB)


UL Synchronisation

DL Synchronisation






CID, TFS for DCH


Synchro DCH


2 X


500 ms


After a RRC Connection_Setup_Request sent by the UE, the CNode willSet-up an signalling stand-alone configuration in the Node B and the UE, buta transport traffic and signalling configuration in the INode.

58




DCH / RRC Initial Direct Transfer (MM Location Update Request)

RANAP Direct Transfer (MM Authentification Req)

RRC Downlink Direct Transfert (MM Authentification Req)

RRC Uplink Direct Transfert (MM Authentification Resp)RANAP Direct Transfer (MM Authentification Resp)

RANAP Direct Transfer (MM Loc Update Accept)

RRC Downlink Direct Transfert (MM Location Update Accept)



SCCP Connection Req(RANAP Initial UE Msg (MM Loc Update Reqt))


59




DCH / RRC RB Setup

RRC Uplink Direct Transfert (MM CM Service Request) RANAP Direct Transfer (MM CM Service Req)

RAB Assignment Req

AAL-2 CID Alloc Req (SRB & TRB)


AAL-2 CID Alloc Resp


RRC Downlink Direct Transfert (MM CM Service Accept)

RANAP Direct Transfer (MM CM Service Accept)

RRC Uplink Direct Transfert (CC Setup) RANAP Direct Transfer (CC Setup)

CID Allocation for AMR speech


RRC Uplink Direct Transfert (MM TMSI Relocation Complete) RANAP Direct Transfer (MM TMSI Relocation Complete)

When a RAB Assignment Request is received from the Core Network, the RNC will setup a Traffic and Signalling configuration in the Node B ( new context as seen from the Node B ), setup the new Node B context at the INode, and will setup the Traffic configuration to the UE.

DTrCH Reconf RL Req (link2: SRB & TRB)

DTrCH Reconf RL Resp

NBAP Radio Link Setup Request (link2: SRB + TRB)

NBAP Radio Link Setup Response ECF

ERQ

60





RRC Downlink Direct Transfert (Call Proceeding)

RAB Assignment Resp

RANAP Direct Transfer (CC Call Proceeding)

UP Initialisation UP Initialisation Ack

RANAP Direct Transfer (CC Alerting)

DCH / RRC Downlink Direct Transfert (CC Alerting) RANAP Direct Transfer (CC Connect)

DCH / RRC Downlink Direct Transfert (CC Connect)

DCH / RRC Uplink Direct Transfer ( CC Connect Ack)RANAP Direct Transfer (CC Connect Ack)

On reception of the RB Setup Complete message, the RNC has to release the resources used on the signalling stand-alone configuration (link1).

NBAP Radio Link Deletion RequestNBAP Radio Link Deletion Response

AAL2 CID Release RespAAL2 CID Release Req

61



RRC Downlink Direct Transfert (CC Release)

RRC Uplink Direct Transfert (CC Disconnect)

RANAP Direct Transfer (CC Release)

RANAP Direct Transfer (CC Disconnect)




UP Dbearer RB deletion ReqMAC / RLC release

62










FP release

CID DCH release

CID for AMR speechrelease

SCCP Disconnect Cmp

SCCP Disconnect_Req

RELREQ

RLC



63


End

Call Flow Diagram

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