
2/28

ExternalNetworks

Network OverviewTS 23.002:

Network Architecture

CS Domain

PS Domain

Entities commonto the CS & PS Domain

GSM BSS

UTRANUE

RANRadio Access Network

CNCore Network

TS 23.060:GPRS



3/28

PSTN

X.25

ISDN

IP

TC: TranscodingIWF: Interworking FunctionsSM-SC: Short Message Service Centre

IWF/TC

GMSC

GGSN

MSC /VLR

SGSN

HLR AuC EIR CSE

TR AU

BSC

BTS

RNC

BTS

Node B(n x BTS)

RNC

Node B(n x BTS)

Node B(n x BTS)

UE

CGF: Charging Gateway FunctionCSE: CAMEL Service Environment

SMS-GMSCSMS-IWMSC SM-SC

CGF BillingSystem

CS Domain

PSDomain

GSM BSS

UMTSNetwork

TS 23.002

UTRAN



4/28

PSTN

X.25

ISDN

IP

IWF/TC

GMSC

GGSN

MSC /VLR

SGSN

HLR AuC EIR CSEUTRAN

TR AU

BSC

BTS

RNC

BTS

Node B(n x BTS)

RNC

Node B(n x BTS)

Node B(n x BTS)

UE


CGF BillingSystem

CS Domain

PSDomain

GSM BSS

Release `99 CN:

CS Domain

UMTSNetwork



5/28

ISDNMSC

VLR VLR

HLR

3G MSCMobile services

Switching Center

SGSN

IWF/TC

TR

AU

BSC

RNC

Iu (CS)

A

E

E

G sC

B

EIR

F MainMSCtasks:

Switching Handling CS Services

Call Setup / Release Charging Interfaces:

A, B, C, E, F,Gs, Iu(CS)


PSTN

GMSC : PSTN/ISDN Interface Interrogating HLR routing to actual

UE location

GMSC

B

MSC : always associated with VLR control of geographical area:

MSC Area = 1 / severalLocation Area LA

V(isited) -MSC for all UEs

in MSC Area

LA1 LA2

LA3 LA4

MSC

AreaFig. 5 (TM2201EU04TM_0002 The UMTS Network, 11)


6/28

SMS-GMSCSMS-IWMSC

MSC /VLR

SGSN

CSDomain

PSDomain

E

G d

SM-SCShort MessageService Center

SMS-GMSCSMS Gateway MSC

SMS-IWMSCSMS Interworking MSC

all or some designatedMSCs can act as

SMS-GMSC/IWMSC(Network operator

dependent)

TS 23.002

ExternalNetworks



7/28

* e.g. Authentication, Authorization,Cipher & Integrity Start

MainVLRtasks:

storing Subscriber profiles Mobility Management storing Location Information controlling

Security Features*

for all UEs in MSC Area

VLR as MSCs Data Base: Subscriber Profile,

e.g. IMSI, MSISDN,Services (TS, BS, SS),..

Temporary Subscriber Datae.g. LMSI, TMSI, MSRN,

Security Parameter,Location Information,

IMSI attach/detach,..

VLRVisitor Location

Register

VLRMSCB

HLR

D Location Updates Subscriber Profiles VLR Security Parameter

(via HLR VLR) Interrogation

(MSRN via HLR to GMSC)AuC

TS: Tele Services

BS: Bearer ServicesSS: Supplementary ServicesMSRN: Mobile Station Roaming Number

IMSI: International Mobile Subscriber IdentityLMSI: Local Mobile Subscriber IdentityTMSI: Temporary Mobile Subscriber Identity F

i g .

7 ( T M 2 2 0 1 E U 0 4 T M

_ 0 0 0 2 T h e U M T S N e

t w o r k ,

1 5 )


8/28

TCTranscoding

&IWF

InterWorking Function

VLR

IWF/TC

TR

AU

BSC

RNC

MSC

Iu (CS)

AB

TCTranscoding

BlaBlaBla

BlaBla

Bla

RANRadio Access

Network

CNCore Network

CN function in UMTS:part of MSC or standalone N.E.

Conversion of Speech Data (CN RAN):using AMR speech codec

CN: 64 kbit/s (ISDN)

RAN: 4.75 12.2 kbit/s (AMR)

AMR: Adaptive MultiRate

F G s

E

C

Interworking: TDM ATM all classical CN -Interfaces (A-G):

TDM based (E1/T1 PCM30/PCM24) Iu(CS): ATM basedIWF

4.75 12.2 kbit/s 64 kbit/s (ISDN)

UTRAN

CN



9/28

PSTN

X.25

ISDN

IP

IWF/TC

GMSC

GGSN

MSC /VLR

SGSN


TR AU

BSC

BTS

RNC

BTS

Node B(n x BTS)

RNC

Node B(n x BTS)

Node B(n x BTS)

UE


CGF BillingSystem

CS Domain

PSDomain

GSM BSS

Release `99 CN:Entities common

to CS & PS Domain

UMTSNetwork



10/28

HLRHome Location Register

GMSC

GGSN

MSC /VLR

SGSN

HLR AuC

CS Domain

PS Domain

AuCAuthentication Center

C

G r G c

Subscriber data (Examples): Semi-permanent Data : MSISDN, IMSI, Services

(BS, TS, SS), QoS Profile, CSI, Service Restrictions,.. Temporary Data : VLR / SGSN address,

MS Non-Reachable flag, MSRN, SMS flags,..

Subscriber Registration Storing/Management

subscriber profiles Deliver profiles to VLR/SGSN Storing Location Information (VLR / SGSN) MTC: Deliver Routing

information to GMSC / GGSN Associated with AuC

Storing secret Keys (counterpart: USIM) &Security Algorithm

Generating Security Parameter(GSM: Triples; UMTS: Quintets)

Deliver Parameter to VLR /SGSN (via HLR)

Associated with HLR

BS: Bearer ServiceTS: Tele ServiceSS: Supplementary ServiceCSI: CAMEL Subscription InformationQoS: Quality of ServiceIMSI: International Mobile Subscriber IdentityMSISDN: Mobile Station ISDN Number

MSRN: Mobile Station Roaming Number

D



11/28

Storing IMEIs(counterpart: ME)

on White / Gray / Black List Performing IMEI Check

on VLR / SGSN request optional network function

EIREquipment Identity Register

MSC /VLR

SGSN

EIR

CS Domain

PS Domain

F

G f

IMEIInternational

Mobile stationEquipment

Identity



12/28

GMSC

GGSN

MSC /VLR

SGSN

HLR AuCgsmSCF

G n

E

gsm

SSF

gsm

SSF

gprsSSF

GSM Service Switching Function interfaces MSC/VLR to gsmSCF derived from IN SSF

stores CAMEL

SubscriptionInformation CSI

GPRS Service Switching Function interfaces SGSN to gsmSCF

GSM Service

Control Function:contains CAMELservice logic for

Operator-SpecificServices

MSC/VLR & SGSN:store CSI as part ofsubscriber profile

CSECAMEL Service

Environment

CSDomain

PSDomain



13/28

MA P

HPLMN

VPLMN

CAMELProtocols &Interfaces

MSC/VLR

HLR

UE

gsmSSF

MSC/VLR

gsmSSF

CSE

gsmSCF

CSE: CAMEL Service EnvironmentgsmSSF: GSM Service Switching FunctiongsmSCF: GSM Service Control FunctionCAP: CAMEL Application PartMAP: Mobile Application PartO-CSI: CAMEL Subscription Information (MOC)T-CSI: CAMEL Subscription Information (MTC)

Signalling

Data transfer

SGSN

gprsSSF

MA P CAPInterfaces

O-CSIT-CSI

TS 23.078,29.078



14/28

PSTN

X.25

ISDN

IP

IWF/TC

GMSC

GGSN

MSC /VLR

SGSN


TR AU

BSC

BTS

RNC

BTS

Node B(n x BTS)

RNC

Node B(n x BTS)

Node B(n x BTS)

UE


CGF BillingSystem

CS Domain

PSDomain

GSM BSS

Release `99 CN:

PS Domain

UMTSNetwork



15/28

GGSNGateway GPRSSupport Node

X.25

IPGGSN SGSN

HLR AuC

CGF BillingSystem

PSDomain

SGSN

GnIP-based

BackboneNetwork

SGSN otherPLMN

G c

G aG p

G i

Interworking PLMN PDN (Gi) Screening / Filtering Storing Routing Information (current SGSN) Requesting Location Information from HLR

(Gc optional; for MTC)

Routing Packets SGSN (Gn) Collecting Charging Data & forwardingto CGF (Ga)

TS 23.060

ExternalNetworks

F i g . 1 5 ( T M 2 2 0 1 E U 0 4 T M

_ 0 0 0 2 T h e

U M T S N e

t w o r k ,

3 1 )


16/28

RA1

RA2

RA3

RA4

SGSN area

RA5

RA6

RA7

GGSN SGSN

CGF

PSDomain

SGSN

GnIP-based

BackboneNetwork

SGSN other

PLMN

G aGp

EIR CSE

MSC /VLR

RNC

BSC

Iu (PS)

Gb

Serving all UEs in SGSN area = 1 / several Routing Area(s) RA

Storing subscriber profiles(requested from HLR)

Mobility Management , e.gUpdate Location, Attach, Paging,..

Security & Access Control : Authentication, Cipher start, IMEI Check... Routing / Traffic-Management Collecting charging data

UTRAN

GSM BSS

G s

G s G r GdCAP AuC HLR

SMS-GMSCSMS-IWMSC

TS 23.060

SGSNServing GPRSSupport Node

LA

F i g . 1 6 ( T M 2 2 0 1 E U 0 4 T M

_ 0 0 0 2 T h e

U M T S N e

t w o r k ,

3 3 )


17/28

GGSN SGSN

CGF

BillingSystem BS

PSDomain

CGFCharging Gateway

Functionality

TS 23.060& 32.015

ExternalNetworks

G aG a

G n

GSNs ChargingGateway

CG

GSN CGF BS

BS

collect CDRs from SGSNs & GGSNs intermediate CDR storage buffering CDR data transfer to the BS

The CGF can:

reside in a separate N.E.:Charging Gateway CG

be integratedin the GSNs

CDR: Charging Data RecordN.E.: Network Element

TS32.015:Charging & Billing

for the PS Domain

F i g . 1 7 ( T M 2 2 0 1 E U 0 4 T M

_ 0 0 0 2 T h e

U M T S N e

t w o r k ,

3 5 )


18/28

PSTN

X.25

ISDN

IP

IWF/TC

GMSC

GGSN

MSC /VLR

SGSN


TR AU

BSC

BTS

RNC

BTS

Node B(n x BTS)

RNC

Node B(n x BTS)

Node B(n x BTS)

UE


CGF BillingSystem

CS Domain

PSDomain

GSM BSS

Release `99:

UTRAN & UE

UMTSNetwork



19/28

RNCRadio Network

Controller

RNCRadio Network

Controller

NodeB

RNSRadio

NetworkSub

system

UTRANIu (CS)

Iub

IurRNC

NodeB

NodeB

Iub

NodeB

SGSN

UE

IWF/ TC

MSC /VLR

Iu (PS)

Uu

PSDomain

CSDomain

100% autonomously RRM(e.g. Radio Resource Control, Access Control,

Admission Control, Handover Control,) (De-)Ciphering & BEC (Layer 2 tasks) storing UEs location information RNS- Control (RNC & Node Bs)

ATM Switching(Iu, Iur & Iub: ATM Interfaces) WCDMA specific tasks



20/28

RNCRadio NetworkController

NodeB

RNS

RadioNetworkSub

system

UTRAN

Iub

RNC

NodeB

NodeB

NodeB

UEUu

Support of 1or several cells WCDMA Transmission ATM Termination Forward Error Correction FEC Radio Interface Measurements

(Quality & Strength)

Node B

NodeB

Omni-CellSector-Cell

NodeBSector-Cell

Sector-Cell



21/28

UEUser Equipment

Node

BUu

RNC

MEMobile Equipment

USIMUMTS Subscriber

Identity Module

HW & SW for WCDMA Radio Transmission

Man-Maschine-Interface MMI

Subscriber license Personal Identities

(e.g.MSISDN, IMSI, TMSI, PIN,...) Security Algorithm & Keys

(for Authentication, Ciphering,..)

Personal phone book USIM Application Toolkit

USAT

UE = ME + USIM

MSC/VLR

SGSN

TS 31.1xx

series

TS 23.101 &31series



22/28

PSTN

X.25

ISDN

IP

IWF/TC

GMSC

GGSN

MSC /VLR

SGSN


TR

AU

BSC

BTS

RNC

BTS

Node B(n x BTS)

RNC

Node B(n x BTS)

Node B(n x BTS)

UE


CGF BillingSystem

CS Domain

PSDomain

GSM BSS

UMTS NetworkSummary

(Rel. `99)

Iu (CS)

Iu (PS)Iub

Iur G a

G d

G n

G cG rG f

CAP

CAP

E

F C/D

G i

Uu

A

Abis

GbUm



23/28

UMTS CN

GERAN UTRAN

PSTN /ISDN

Intra- /Internet

Co-existence ofGSM & UMTS

network elements

Further Evolution

Release 4 & 5

UMTSNetwork

GERAN: GSM/EDGE Radio Access Network



24/28

3G modularity& future options

3GCore

Network

e.g.enhanced

GSM / IS-41,or

R`4, R`5UMTS CN

EDGE

MC- CDMA

Hiperlan-2,MBS,..strict separation

CN - RAN tasks flexibility in 3G

3G RAN

UTRA TDD HCR

UTRA TDD LCR

UTRA FDD

3G-MSS

Iu

F i g

. 2 4 ( T M 2 2 0 1 E U 0 4 T M

_ 0 0 0 2 T h e

U M T S N e

t w o r k ,

4 9 )


25/28

PSTN/ISDN

Bearer Level

Call ControlLevel

MSCServer

HLR

GMSCServer

CS-MGW

CS-MGW

GERAN

UTRAN

Applications and Services

Mc (H.248/MEGACO)Mc

CAPCAP

Nb (e.g. ATM, IP)

Nc (e.g. BICC)

AIu

CD

Iu

A

UMTS CN R`4CS Domain

MEGACO: IETF Media Gateway Control protocol

H.248: ITU protocol for Media Gateway Control

PS Domainunchanged

compared to R`99

R`4TS 23.002

(G-)MSC Server: Call Control Mobility Management MGW Control VLR functionality CDRs (HLR-Interrogation)

MGW: Bearer Control Transmission Resource Management Data Format Conversion

TranscodingCDR: Call Data RecordsBICC: Bearer Independent Call ControlMGW: Media Gateway



26/28

PSTN

UMTS CN R`5IMS & PS Domain

HSS: Home Subscriber ServerMGW: Media GatewayMGCF: Media Gateway Control FunctionSIP: Session Initiation Protocol

G i

UTRAN

RNC

NodeB

RNC

Iur

Iub

Iub

UE(USIM)

Uu

NodeB

NodeB

ISDN

SGSN GGSN

MGW

MGCF

X.25

IPR

R

R

R

R

R

CSCF

Iu

Intelligent & Application Servers

IMS: IP Multimedia SubsystemCSCF: Call State Control FunctionR: IP Router/Switch

CSE WAP

IPBackbone

HSS

other

PLMN

R`5TS 23.002

CSCF: Session Flow Handling Application Coordination interfaces IN/Application

Servers CDR`s

HSS:

similar HLR

MGCF: MGW control Call Control Signalling Protocol

Conversion (SS7 to SIP)



27/28

PSTN

X.25

ISDN

IP

IWF/TC

GMSC

GGSN

MSC /VLR

SGSN


TR

AU

BSC

BTS

RNC

BTS

Node B(n x BTS)

RNC

Node B(n x BTS)

Node B(n x BTS)

UE


CGF BillingSystem

CS Domain

PSDomain

GSM BSS

UMTS NetworkSummary

(Rel. `99)

Iu (CS)

Iu (PS)Iub

Iur G a

G d

G n

G cG rG f

CAP

CAP

E

F C/D

G i

Uu

A

Abis

GbUm

(TM2201EU04TM_0002 The UMTS Network, 61)


28/28

PSTN

X.25

ISDN

IP

IWF/TC

GMSC

GGSN

MSC /VLR

SGSN


TR

AU

BSC

BTS

RNC

BTS

Node B(n x BTS)

RNC

Node B(n x BTS)

Node B(n x BTS)

UE


CGF BillingSystem

CS Domain

PSDomain

GSM BSS

UMTS NetworkSummary

(Rel. `99)

Iu (CS)

Iu (PS)Iub

Iur G a

G d

G n

G cG rG f

CAP

CAP

E

F C/D

G i

Uu

A

Abis

GbUm

05 Tm2201eu04tm 0002 Umts Network

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