07-WCDMA UTRAN Signaling Procedure.ppt

8/10/2019 07-WCDMA UTRAN Signaling Procedure.ppt

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Huawei Confidential. All Rights Reserved

UMTS UTRAN Signaling Procedures

ISSUE 1.0


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Internal Use 1

Object

Upon completion this course, youwill be able to:

Understand UTRAN Interface andstructureUnderstand the definitions aboutUTRAN network elementsUnderstand UTRAN signaling

procedure


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Internal Use 2

Chapter 1 UTRAN Network Overview

Chapter 2 Basic Concepts about UTRAN

Chapter 3 UTRAN Signaling Procedure


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Internal Use 3

The Position of UTRAN in WCDMA Network


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Internal Use 4

UMTS Construction

Iu

UTRAN

UE

Uu

CN

UTRAN UMTS Terrestrial Radio Access Network

CN Core NetworkUE User Equipment


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Internal Use 5

UMTS Structure

RNS

RNC

RNS

RNC

Core Network

Node B Node B Node B Node B

Iu Iu

Iur

Iub Iub Iub Iub


7/89Internal Use 6

Uu Interface

L3

c o n t r o

l

c o n t r o

l

c o n t r o

l

c o n t r o

l

LogicalChannels

TransportChannels

C-plane signalling U-plane information

PHY

L2/MAC

L1

RLC

DC NtGC

L2/RLC

MAC

RLCRLC

RLCRLC

RLCRLC

RLC

Duplication avoidance

UuS boundary

BMC L2/BMC

control

PDCPPDCP L2/PDCP

DC NtGC

RadioBearers

RRC


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Iu-CS Interface

Q.2150.1

Q.2630.1

RANAP Iu UP ProtocolLayer

Transport Network

Layer

Physical Layer

TransportUser

etwork Plane

Control Plane User Plane

TransportUser

etwork Plane

Transport Network Control Plane

Radio Network

Layer

ATM

SSCOP

AAL5

SSCOP

SSCF-NNI

AAL2AAL5

MTP3bMTP3b

SCCP

SSCF-NNI


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Iu-PS Interface

SSCF-NNI

SSCOP

AAL5

IP

SCTP

SCCP

SSCF-NNI

MTP3-BM3UA

RANAP Iu UP ProtocolLayer

Transport Network

Layer

Physical Layer

TransportUser

Network Plane


TransportUser

Network Plane

Transport Network Control Plane

Radio Network

Layer

ATM

AAL5

IP

UDP

GTP-U

Physical Layer

ATM


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Iub Interface

Node BApplication Part

(NBAP)

AAL Type 2

ALCAP

Transport

Layer

Physical Layer

Radio Network Layer

Radio Network Control Plane

Transport Network

Control Plane

DCH FP

RACH FP

ATM

DSCH FP

AAL Type 5

User Plane

SSCF-UNI

SSCOP

AAL Type 5

SSCF-UNI

SSCOP

Q.2630.1

Q.2150.2

FACH FP

PCH FP

USCH FP

CPCH FP


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Iur Interface

SSCF-NNI

SSCOP

MTP3-B

AAL5

IP

SCTP

SCCP

AAL5

SSCF-NNI

STC (Q.2150.1)

RNSAP Iur DataStream(s)

TransportNetwork

Layer

Physical Layer

TransportUser

NetworkPlane


TransportUser

NetworkPlane

Transport NetworkControl Plane

RadioNetwork

Layer

ATM

ALCAP(Q.2630.1)

AAL2

SSCF-NNI

SSCOP

MTP3-B

IP

SCTPSSCF-NNI

M3UA M3UA



Question

What kind of Interfaces are there in UTRAN ?



Chapter 1 UTRAN Network Overview

Chapter 2 Basic Concepts about UTRAN

Chapter 3 UTRAN Signaling Procedure



RAB, RB and RL

RAB The service that the access stratum

provides to the non-access stratum for transfer of

user data between User Equipment and CN

RB The service provided by the layer2 for

transfer of user data between User Equipment

and Serving RNC

RL A "radio link" is a logical association between

single User Equipment and a single UTRAN accesspoint. Its physical realization comprises one or

more radio bearer transmissions



RAB, RB and RL

RAB

RB

RLNodeB

RNCCN

UE

UTRAN



TE MT UTRAN CN IuEDGENODE

CNGateway

TE

UMTS

UTRAFDD/TDD

Service

PhysicalBearerService

RadioBearerService

IuBearerService

BackboneNetworkService

Radio Access BearerService

CN BearerService

UMTS BearerService

TE/MTLocal BearerService

ExternalBearerService

End-to-EndService

UTRANradio interface

UMTS Qos Mapping



UMTS Qos Mapping

During RAB assignment request in Iu interface, it contains theQos in formations which are required by UMTS service.

RAB Service: Providing the stable Qos service Between UEand CN. For RAB service, the character of access stratum istransparent.

RB service: In access stratum, RB service makes sure the

Qos is stable by different kinds of protecting methods.



UE Working Modes and states

Idle modeConnected mode

Cell_DCHCell_FACHCell_PCH

URA_PCH




Idle ModeThe UE has no relation to UTRAN, only to CN. For data transfer, a

signalling connection has to be established.UE camps on a cell

It enables the UE to receive system information from the PLMNWhen registered and if the UE wishes to establish an RRCconnection, it can do this by initially accessing the network on the

control channel of the cell on which it is campedUE can receive "paging" message from control channels of the cell.It enables the UE to receive cell broadcast services .

The idle mode tasks can be subdivided into three processes:PLMN selection and reselection;

Cell selection and reselection;Location registration.




Connected Mode (Cell-DCH, Cell-FACH, Cell-PCH,URA-PCH)

When at least one signalling connection exists, the UE is inconnected mode and there is normally an RRC connectionbetween UE and UTRAN. The UE position can be known ondifferent levels:

UTRAN Registration Area (URA) levelThe UE position is known on URA level. The URA is a set ofcellsCell levelThe UE position is known on cell level. Different transportchannel types can be used for data transfer:

Common transport channels (RACH / FACH, DSCH, CPCH)Dedicated transport Channels (DCH)




Cell-DCHIn active stateCommunicating via its dedicated channelsUTRAN knows which cell UE is in.



Cell-FACH and Cell-PCH State

Cell-FACHIn active state

Few data to be transmitted both in uplink and in downlink.There is no need to allocate dedicated channel for this UE.Downlink uses FACH and uplink uses RACH.UE need to monitor the FACH for its relative information.UTRAN knows which cell UE is in.

Cell-PCHNo data to be transmitted or received.Monitor PICH, to receive its paging.lower the power consumption of UE.UTRAN knows which cell UE is in.UTRAN have to update cell information of UE when UE roamsto another cell



URA-PCH State

URA-PCH

No data to be transmitted or received.Monitor PICH.UTRAN only knows which URA (UTRAN Registration

Area, which consists of multiple cells) that UE is in.UTRAN update UE information only after UE has roamedto other URA.

A better way to lower the resource occupancy andsignaling transmission


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Internal Use 23

UE states

CELL_DCH CELL_FACH

CELL_PCHURA_PCH

IDLE

DEAD - Scanning networks (PLMN)- Camp on cell

- Monitor paging channel

- cell re-selection

- Dedicated Channel- Radio bearers Transmission Services - upper layer Signaling

trigger (CN)

- Reduce action DTX and save power

RRC con nec t ion


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Internal Use 24

SRNC/DRNC

SRNC and DRNC are on a per connection basis between a UEand the UTRANThe SRNC handles the connection to one UE, and may borrowradio resources of a certain cell from the DRNCDrift RNSs support the Serving RNS by providing radio resources

A UE in connection state has at least one and only one SRNC, butcan has 0 or multiple DRNCs

CN

SRNC DRNCIu Iur


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CRNC

The CRNC owns the radio resources of a cellDynamical control of power for dedicated channels, within

limits admitted by CRNC, is done by the SRNC.Scheduling of data for dedicated channels is done by theSRNC, while for common channels it is done by the CRNC

CRNC

Iub

Node BCell Cell Cell

Node B

...

CNIu


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Internal Use 26

Source RNC/Target RNC

The SRNS Relocation function coordinates the activities when theSRNS role is to be taken over by another RNS.Source RNC is the SRNC before SRNs Relocation and TargetRNC is the SRNC after SRNs Relocation

CNCN

SourceRNC

TargetRNC

ServingRNC

Iu IuIur RNC


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Internal Use 27

Questions

Whats the meaning of RAB, RB RL?How many state on UE can have in WCDMA?Could you use an example to explain the states?Could you explain what is the SRNC, DRNC,CRNC, Source RNC and Target RNC?


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Internal Use 28

Chapter 1 UTRAN network overview

Chapter 2 Basic definitions of UTRAN

Chapter 3 UTRAN signaling procedure


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Internal Use 29

UTRAN Signaling Procedure

System InformationBroadcast

Paging

Call process

Handover

DCCC

Cell Setup


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Internal Use 30

Cell Setup

NBAP

NBAP

NBAP

NBAP

NBAP

NBAP

NBAP

NBAP

NBAP

NBAP

NCP :Resouce Status Ind

NCP :Audit Req

NCP :Cell Setup Req

NCP :Cell Setup Rsp

NBAPNBAP NCP :Comm TrCh Setup Req

NBAPNBAP NCP :Comm TrCh Setup Rsp

Q.AAL2

Q.AAL2

Q.AAL2

Q.AAL2

Est Req

Est Conf

RNC NodeB

NCP :Audit Rsp

NBAPNBAP NCP :Comm TrCh Setup Req

NBAPNBAP NCP :Comm TrCh Setup Rsp

Q.AAL2

Q.AAL2

Q.AAL2

Q.AAL2

Est Req

Est Conf


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Internal Use 31

Cell Setup

Setup NCP and CCP in SAAL link stratum, which NCPcarries the NBAP public information and CCP carries theNBAP dedicated information. One NodeB only can setupone NCP, but can setup several CCP;to prepare the cell setting up, the resource of Node Bshould be audited.;Logic cell setupSetup the common transport channel for cell, includingRACH, FACH and PCH.Setup the Iub interface for the common transport channelsto carry FP and AAL2 PATH for FP.FP synchronization in Iub interface

The process of cell setup


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Internal Use 32


Paging

Call process

Cell Setup


Handover

DCCC


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Internal Use 33

System Information Broadcast Flow

3.BCCH:System Information

1.System Information Update Request

UE Node B RNC CN

NBAPNBAP

RRCRRC

4.BCCH:System Information RRCRRC

5.BCCH:System Information RRCRRC

2.System Information Update Response

NBAPNBAP


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Internal Use 34

Introduction of System Information

MIB Conta ins PLMN tag and SB (schedu l ing in fo rm ation b lock) o r theschedu l ing in fo rmat ion fo r S IB ( sys tem in fo b lock )

SB 1 Conta ins sc hedu l ing in fo rmat ion fo r S IB

SB2 Contains scheduling information for SIB

SIB1 Conta ins the sys tem in format ion fo r NAS and the t imer fo r UE

SIB2 Contains the URA info rm at ion

SIB3 Contains the references for ce l l se lec t ion and c e l l re-se lec t ion


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Internal Use 35


SIB4 Contains parameters for cell selection and cell re-selection while UEis in connecting mode

SIB5 Conta ins pa ramete rs fo r co nf igur ing th e comm on p hys ica l channe ls

SIB6 Contains parameters for configuring the common physical channelswhile UE is in connecting mode

SIB7 Contains the up l ink in ter ference level and the ref reshing t im er forSIB7

SIB8 Contains the CPCH static information


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Internal Use 36


SIB9 Contains the CPCH dynamic information

SIB10 Contains information to be used by UEs having their DCH controlledby a DRAC procedureUsed in FDD mode onlyTo be used in CELL_DCH state only

Changes so often, its decoding is controlled by a timer

SIB11 Conta ins m easurement con t ro l l ing in fo rmat ion

SIB12 Contains measurement controlling information in connecting mode

SIB13 Contains ANSI-41 system information

d f f


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Internal Use 37


SIB14:Contains the information in TDD mode

SIB15:Contains the finding position service information

SIB16:Contains the needed pre-configuration information for handover fromother system to UTRAN

SIB17:Contains the configuration information for TDD

SIB18:Contains the PLMN identities of the neighboring cellsTo be used in shared networks to help with the cell reselectionprocess

f


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Internal Use 38

System Information Block Type 1

System information type 1The NAS system informationCS domain DRX K 6 then DRX

period is 2^k = 2 6 = 64 TTI = 640 msPS domain DRX K 6 then DRX

period is 2^k = 2 ^ 6 = 64 TTI = 640 msThe different timers for UE in

connecting mode and idle mode.

f l k


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Internal Use 39


System info type 2URA information


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Internal Use 40


The references for cell selection and re-selection

Qhyst2sSintrasearchSintersearchSinterRatsearchQqualmin

QrxleminT reselectionMax Allowed UE TX power


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Internal Use 41


The configuration information for thefollowing physical channels and thecounterpart transport channels

PICHAICHPCCPCHPRACHSCCPCH

System Information Block Type 7 and 11


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Internal Use 42

System Information Block Type 7 and 11

System info type 7 Including the UL interference level which is used for open loop power

control: Preamble_Initial_Power=Primary CPICH DL TX power -

CPICH_RSCP + UL interference + Constant ValueIncluding the Expiration Time Factor which is used for refreshing the

SIB7 periodically

System info type 11 The neighbor cell information for cell re-selection in IDLE mode.



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Internal Use 43


Call process

Cell Setup


Paging

Handover

DCCC

P i d b CN


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Internal Use 44

Paging caused by CN

PS Paging Without RRC Connection for CS

SGSNUE NodeB1 RNC1

RANAP

NodeB2 RNC2

RANAP

MSC/VLR

RANAP

RANAPPaging

Paging

RRC

RRCPaging Type 1RRC

Paging Type 1

UE RNC1

RANAP

MSC/VLR

RANAPPaging

SGSN

PS Paging With RRC Connection for CS

RRC Connection Establish

NodeB1

RRCPaging Type 2RRC

P i d b CN


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Internal Use 45

Paging caused by CN

The paging information type which is sent by UTRAN isdecided by UE mode.

If UE is in the CELL_FACH or CELL_DCH UTRAN sendpaging type 2. In other modes, the paging information is type 1and UE can use DTX method to detecting PICH.

Paging caused by UTRAN


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Internal Use 46

Paging caused by UTRAN

UE RNC1NodeB1

RRCPagi ng Type 1RRC

When the system information is modified, UTRAN will sendthe paging information to tell UEs which are in IDLE, Cell_PCHor URA_PCH mode. Then, UE will read the modified systeminformation from BCH.

To change the state of UE which is in Cell_PCH orURA_PCH state, UTRAN will start a paging flow. Then, UE willstart a Cell-Update or URA update flow for response.



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Internal Use 47


Handover

DCCC

Cell Setup


Paging

Call process

Introduction of Call Process


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Internal Use 48

Introduction of Call Process

In WCDMA system, a call process includes the following

basic signaling flows:RRC Connection flowIu interface signaling flow Authentication flow,security flowRAB establish flow.

These basic flows include NAS signaling, and theauthentication and security flow are optional

RRC Connection Establishment Flow (DCH)


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Internal Use 49

RRC Connection Establishment Flow (DCH)

When UE is in IDLE mode and the NAS of UE request the signalingconnection, UE will send a RRC Connection Request. Each UE onlycan have on RRC Connection. The main function is to configure the

signaling channel of UTRAN.

5 . Dow nl ink Synchron i sa ti on

U E N od e BS e r v i n g R N S

Serv ingR N C

D C H - F PD C H - F P

A l l o ca t e R N T ISe lec t L1 and L2

p ar am et er s

R R CR R C1 . C C C H : RRC Connec t ion Reques t

N B A P N B A P3 . Rad io L ink Se tup Response

N B A P N B A P2 . Rad io L ink Se tup Reques t

R R CR R C7. C C C H : RRC Connec t ion Se tup

S ta r t RX

Sta r t TX

4 . ALCAP Iub Da ta Transpor t Bea re r Se tup

R R CR R C9 . D C C H : RRC Connec t ion Se tup Comple t e

D C H - F PD C H - F P6 . Up l ink S ynchron i sa ti on

N B A P N B A P8 . Rad io L ink R es to re Ind i ca tion

Iu Interface Signaling Connection establish


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Internal Use 50

Iu Interface Signaling Connection establish

In Iu interface, radio network layer reportsthe RANAP information and NAS information.NAS information is taken as directed messagein RANAP information.

And the process of Iu signaling connectionis to establish the Iu interface connection ofSCCP between RNC and CN.

UE NodeB RNC CN

I nit ial D T

Initial UE message(Con nectRequest)

RRC RRC

RANAP/SCCP

RANAP/SCCP

Connec t Conf ir mSCCP SCCP

Authentication and Security flow


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Internal Use 51

Authentication and Security flow

Authentication is used for the validity of CN and UE.Security flow include the encrypt process and integrity protection.

MS CNRNC

RRC

RAB

INIT DTINIT UE

DL DT(AUTHENTICATION REQUEST)

DL DT(AUTHENTICATION REQUEST)

UL DT(AUTHENTICATION RESPONSE)

UL DT(AUTHENTICATION RESPONSE)

COMMON ID

SECURITY MODE COMMANDSECURITY MODE COMMAND

SECURITY MODE COMPLETE SECURITY MODE COMPLETE

RAB Establishment flow


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Internal Use 52

RAB Establishment flow

RAB is the carrier which is provided by AS for NAS.RAB is the carrier in user plane, which is for transferring the voice

service, data service or multiple media service between UE and CN.RAB establishment flow mainly includes the AAL2 PATH

establishment of Iu and Iub interface, also includes the reconfigurationprocess of radio resource.

UE NodeB RNC CN

RAB Ass R eq

RL Recf g Pre p

RL Recfg Ready

AAL2 Setup Req

AAL2 Setup Rsp

DL Sync

UL Sync

RL Recf g Commi t

RB S etu p

RB S etu p Co mpl ete

AAL2 Set u p R e q

AAL2 S et up R sp

RAB Ass Rsp

RRC RRC

RRC RRC

RANAP RANAP

RANAP RANAP

RANAP RANAP

RANAP RANAP

NBAP NBAP

NBAP NBAP

Q.AAL2Q.AAL2

Q.AAL2Q.AAL2

FPFP

FPFP

NBAP NBAP

NAS Signaling


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Internal Use 53

NAS Signaling

Authentication and security flow are optional.CN does not need to the CM Service Response if the security mode is

used.

UE MSC

CM Service Accept

CM Service Request

RRC

Setup

Call Proceeding

RAB

AlertingConnect

Connect ACK

Disconnect

Release

Release Complete

UE Outgoing Call

UE MSC

Paging Response

RRC

Setup

Call Confirmed

RAB

AlertingConnect

Connect ACKDisconnect

Release

Release Complete

UE Terminating Call

Paging

Authenticate RequesetAuthenticate Response Authenticate Requeset

Authenticate Response

UE to UE (1)


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Internal Use 54

UE to UE (1)

Ori UE Ter UE NodeB1 NodeB2RNC1 CN RNC2

1.RRC Connect Setup Req

2.RL Setup Req

3.RL Setup Rsp

4.AAL2 Setup Req

5.AAL2 Setup Rsp

6.DL Sy nc

7.UL Sync

8.RRC Connect Setup

9.RRC Connect Setup Cmp

10.Initial DT

11. I ni t UE(CM Serv ic e Req)

12.DT(AuthenticaReq)

15.DT(AuthenticaRsp)

13.DL DT

14.UL DT

RANAP

RRCRRC

NBAP NBAP

NBAP NBAP

Q.AAL2Q.AAL2

Q.AAL2Q.AAL2

FPFP

FPFP

RRCRRC

RRCRRC

RRCRRC

RANAP

RANAP RANAP

RRC RRC

RRCRRC

RANAP RANAP


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UE to UE (5)


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Internal Use 57

UE to UE (5)


RANAP RANAP64.RAB Ass Req

NBAP NBAP

70.RL RecfgReady NBAP NBAP

69.RL RecfgPrep

Q.AAL2 Q.AAL2

72.AAL2Setup Rsp

Q.AAL2 Q.AAL2

71 . AAL2 Se tup Req

FPFP 73.DL Sync

FPFP 74 . UL S ync

RRC RRC75 .RB S et up

Q.AAL2 Q.AAL265.A AL2 Se t upReq

Q.AAL2 Q.AAL266.AAL2 Setup

ConfFPFP 67 .D L Syn c

FPFP 68.UL Sync

UE to UE (6)


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Internal Use 58

UE to UE (6)


NBAP NBAP76. RL Rc fg

Commit

RRC RRC77.RB S etup Complete

RANAP RANAP78.RAB Ass

Rsp

RRC RRC79.UL DT

RANAP RANAP80. DT(Al er t i

ng)

RANAP RANAP81.DT(Alertin

g)

RRC RRC82.DL DT

RRC RRC83.UL DT

RANAP RANAP84.DT(Connec

t)

RANAP RANAP85.DL

DT(Connect)

RRC RRC86.DL DT

RRC RRC87.UL DT

RANAP RANAP

RANAP RANAP

RRC RRC

88.UL DT

89. DT(Connect A ck )

90.DL DT

Alerting

Connect

UE to UE (7)


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Internal Use 59

( )


RANAP RANAP92.DT(Disconne

ct)

RRC RRC91.UL DT

RANAP RANAP96.DT

(Disconnect)

RRC RRC9 7 .DL DT

RRC RRC98. UL DT

RANAP RANAP99.DT

( Rel ea se )

RANAP RANAP93.DT(Release)

RRC RRC94.DL DT

RRC RRC95.UL DT

RANAP RANAP102.DT

(Release Ack)

RANAP RANAP100.DT

(Rel Comp)

RRC RRC101.DL DT

RANAP RANAP103.IU Rel

Cmd


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Internal Use 61

Cell Setup


Handover

Paging

Call process

DCCC

Concepts about Soft Handover


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Internal Use 62

Soft handover: the

signals from differentNodeBs are merged inRNC.

Softer handover: thesignals from differentcells, but from the sameNodeB are merged inNodeB.

Soft Handover flow


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Internal Use 63

Node B

RNC

AirBridge

AirBridge

AirBridge

Core Network

Soft Handover flow


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Internal Use 64

Node B

RNC

AirBridge

AirBridge

AirBridge

Merged in NodeB

Core Network

Soft Handover flow


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Internal Use 65

Merged in RNC

Node B

RNC

AirBridge

AirBridge

AirBridge

Core Network

Soft Handover flow (SRNC-DRNC)


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Internal Use 66

Merged in SRNC

Node B

AirBridge

AirBridge

AirBridge

Serving RNC

Drift RNC

( )

Core Network

Soft Handover flow (SRN Relocation)


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Internal Use 67

Node B

AirBridge

AirBridge

AirBridge

Serving RNCRNC

( )

Core Network

Soft Handover flow Intra-RNC


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Internal Use 68

Before Handover After Handover

CN

SRNC

NodeB NodeB

CN

SRNC

NodeB NodeB

CN

SRNC

NodeB NodeB

During Handover

Soft Handover flow add branch in RNC


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Internal Use 69

Decision to setupnew RL

7 . DCCH : Active Set Update Complete

6.DCCH: Active Set Update

UE Node B(new) SRNC

NBAP1. Radio Link Setup RequestNBAP

NBAP2. Radio Link Setup ResponseNBAP

3 ALCAP Iub Data Transport Bearer Setup

Start RX description

DCH-FP4. Downlink SynchronisationDCH-FP

DCH-FP5.Uplink SynchronisationDCH-FP

Start RX description

RRC

RRC

RRC

RRC

Soft Handover flow Del Branch in RNC


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Internal Use 70

Decision to deletea RL

2. DCCH : Active Set Update Complete

1.DCCH: Active Set Update

UE Node B(old) SRNC

NBAP3. Radio Link Deletion RequestNBAP

NBAP4. Radio Link Deletion ResponseNBAP

RRC

RRC

RRC

RRC

Stop RX and Tx

5 ALCAP Iub Transport Bearer release

Hard Handover (Intra-RNC)


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Internal Use 71


Radio Link can not exist simultaneously

CN

SRNC

NodeB NodeB

CN

SRNC

NodeB NodeB

Hard Handover (Intra-RNC)


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Internal Use 72

UE Node B Source Node B Target SRNC

8. DCCH : Physical Channel Reconfiguration Complete

6.DCCH : Physical Channel Reconfiguration

1. Radio Link Setup Request

2. Radio Link Setup Response

9. Radio Link Deletion Request

10. Radio Link Deletion Response

3 ALCAP ub Data Transport Bearer Setup

7. Radio Link Failure IndicationRRCRRC

NBAPNBAP

NBAP

RRCRRC

NBAP

NBAP

NBAP NBAP

Decide to

handover

Start Rx

Start Tx

DCH-FP4. Downlink SynchronisationDCH-FP

DCH-FP5.Uplink SynchronisationDCH-FP

NBAP

NBAP

NBAP

11. ALCAP Iub Data Transport Bearer Release

Hard Handover (Inter-RNC)


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Internal Use 73


Radio Link can not exist simultaneously

CN

SRNC RNC

NodeB NodeB

CN

SRNC RNC

NodeB NodeB

Hard Handover (Intra-RNC through Iur)


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Internal Use 74

RNSAPRNSAP

1. Radio Link Setup Request

UE Node BSource

Node BTarget

RNCSource

RNCTarget

SRNC

RRCRRC

10. DCCH : Physical Channel Reconfiguration Complete

RRC7.DCCH : Physical Channel ReconfigurationRRC

6. ALCAP Iur Data Transport Bearer Setup

NBAP NBAP2. Radio Link Setup Request

NBAP NBAP3. Radio Link Setup Response

NBAP NBAP12. Radio Link Deletion Request

NBAP NBAP13. Radio Link Deletion Response

4. ALCAP ub Data Transport Bearer Setup

14. ALCAP Iub Data Transport Bearer Release

RNSAP RNSAP15. Radio Link Deletion Response

16. ALCAP Iur Data Transport Bearer Release

RNSAP5. RL Setup Response

RNSAP

RNSAP11. Radio Link Deletion Request

RNSAP

NBAP NBAP8. Radio Link Failure Indication

RNSAPRNSAP

9. Radio Link Failure Indication

SRNC Relocation


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Internal Use 75

SRNS

Core Network

Iu

DRNS Iur

UE

RNS

Core Network

Iu

SRNS

UE

After SRNS RelocationBefore SRNS Relocation

Cells


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Forward Handover


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Internal Use 78

Forward Handover is sponsored by UE, including cellupdate and URA update. URA update is only used UEwhich is in URA_PCH state is doing URA re-selection, andcheck the RRC connection.When UE is in Cell_FACH and Cell_PCH state

Cell reselection In service area, the T304 timer is overdue.

When UE is in Cell_PCH or URA_PCH state:UE is going to upload data (from Cell_PCH orURA_PCH to Cell_FACH)

After UE received the paging information from PCCH,UE sponsored cell update.

Inter-system Handover Flow UMTS->GSM


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Internal Use 79

UE NodeB RNC 3G MSC 2G MSC BSS

Measurement Report(2D)

RL Recfg Prep

RL Recfg Ready

Physical Channel Reconfiguration

RL Recfg Commit

Physical Channel Reconfiguration cmp

Measurement Control(InterRAT)

Measurement Report(GSM)

Relocation Required

Relocation Command

Prepare Handover

Handover Request

Handover Request ACK

Prepare Handover RSP

Handover From UTRAN CMD

Handover Complete

IU release commandIU release complete

RRC Con Release Req

RRC Con Release Cmp

RL Del Req

RL Del Rsp

Inter-system Handover Flow (GSM-UMTS)


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Internal Use 80

UE NodeB RNC 3G MSC 2G MSC BSS

RL setup requeset

RL setup response

RL Restore Indicaton

Handover Complete

UTRAN Capacity Info

UE Capacity Info Enquiry

Relocation RequesetPrepare Handover

Handover Request

Handover Command

Send end signalrequeset

Inter System to UTRAN Ho cmd (Handover to UTRAN Command)

Clear command

Clear complete

UTRAN Capacity Info Confirm

UE Capacity Info Confirm

Relocation RequesetACK

Prepare Handover RSP

Relocation Complete

Send end signalresponseUE Capacity Info



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Internal Use 81

Cell Setup

IMSI Attachand Detach


Handover

Paging

Call process

DCCC

DCCC Cell_DCH to Cell_FACH


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Internal Use 82

UE NodeB SRNC

RRC RRCDCCH:Meas Report Or RNC Meas Report

RL Del Req NBAP

RL Del Rsp NBAP

Rel Req

Rel Complete

NBAP

NBAP

Q.AAL2

Q.AAL2

Q.AAL2

Q.AAL2

DCCH : RB Recfg

DCCH : RB Recfg Complete

RRCRRC

RRCRRC

DCCC (Cell_FACH to Cell_DCH )


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Internal Use 83

UE NodeB SRNC

RRC RRCDCCH:Meas Report(Or R NC Meas Report)

RL Setup Req NBAP

RL Setup Rsp NBAP

Est Req

Est Conf

DL Sync

NBAP

NBAP

UL Sync

Q.AAL2

Q.AAL2

Q.AAL2

Q.AAL2

DCH-FP

DCH-FP

DCH-FP

DCH-FP

DCCH : RB Recfg

DCCH : RB Recfg Complete

RRCRRC

RRCRRC

RL Restore Ind NBAP NBAP

RAB Reconfiguration (Cell_DCH to Cell_DCH ,PS)


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Internal Use 84

UE NodeB SRNC CN

RANAP

RAB Assignment Rsp RANAPRANAP

RANAPRAB Assignment Req

NBAP NBAPRL Recfg Prep

NBAP NBAPRL Recfg Ready

RRC RRCRB Setup

RRC RRCRB Setup Complete

NBAP NBAPRL Recfg Commit

Est Req

Est Conf

DL Sync

UL Sync

Q.AAL2

Q.AAL2

Q.AAL2

Q.AAL2

DCH-FP

DCH-FP

DCH-FP

DCH-FP

Est Req

Est Conf

Q.AAL2

Q.AAL2

Q.AAL2

Q.AAL2

RAB Configuration (Cell_FACH to Cell_DCH ,PS)


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Internal Use 85

UE NodeB SRNC CN

RANAP

RAB Assignment Rsp RANAPRANAP

RANAPRAB Assign ment Req

NBAP NBAPRL Setup Req

NBAP NBAPRL Setup Rsp

RRC RRCRB Setup

RR C

RRCRB Setup Complete

Est Req

Est Conf

DL Sync

UL Sync

Q.AAL2

Q.AAL2

Q.AAL2

Q.AAL2

DCH-FP

DCH-FP

DCH-FP

DCH-FP

NBAP NBAPRL Restore Ind

Est Req

Est Conf

Q.AAL2

Q.AAL2

Q.AAL2

Q.AAL2

RAB Configuration (Cell_FACH-Cell_FACH, PS)


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Internal Use 86

UE NodeB SRNC CN

RANAP

RAB Assignment RspRANAPRANAP

RANAPRAB Assignment Req

RRC RRCRB Setup

RRC RRCRB Setup Complete

Est Req

Est Conf

Q.AAL2

Q.AAL2

Q.AAL2

Q.AAL2

Summary


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Internal Use 87

This chapter mainly explained the

basic signaling flow in UTRAN.This is very helpful for the CNsignaling flow.

Summary


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07-WCDMA UTRAN Signaling Procedure.ppt

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Transcript of 07-WCDMA UTRAN Signaling Procedure.ppt