04-01-21 From GSM to UMTS - Aalto · PDF file6 © NOKIA From GSM to UMTS.PPT / 14.01.2003 / A.Ahtiainen 3GPP - Third Generation Partnership Project ARIB - Association of Radio

1 © NOKIA From GSM to UMTS.PPT / 14.01.2003 / A.Ahtiainen

From GSM to UMTS

Ari Ahtiainen

Nokia Research Center

T-110.498 Special Course in data communications and networks

HUT Telecom SW and Multimedia Lab

January 2003


Contents

• Early history of radio communications

• Multiple access schemes

• Evolution from GSM to UMTS


Early history of radio communications

Reginald Fessenden 1866-1932l Voice transmission over radio 1906

It all started 100 years ago

Heinrich Hertz, 1857-1894

l Electromagnetic waves 1887

Guglielmo Marconi 1874-1937lFirst radio 1897


Driver 1: Radio spectrum availability

Multiple access schemes

• "keep away from my frequency" (Titanic 1912)

• FDMA - Frequency Division Multiple Access (since 1920s)• radio broadcasting• regulation of frequencies was started• 1st generation mobile systems (NMT, TACS, …)

• TDMA Time Division Multiple Access (1980-)• 2nd generation mobile systems: GSM, US-TDMA, PDC• narrowband systems

• Code Division Multiple Access (late 1990s-)• 3rd generation mobile systems: WCDMA, CDMA2000


Driver 2: Technological breakthroughs

Cellular system concept (AT&T 1946)

Vacuum tube (Fleming 1915)

⇒radio receivers for public broadcasting

Microprocessor (Intel 1971)

⇒mobile phones for public mobile telecommunications


3GPP - Third Generation Partnership ProjectARIB - Association of Radio Industries and BusinessesCWTS - China Wireless Telecommunication Standard groupETSI - European Telecommunications Standards InstituteT1 - Standards Committee T1 TelecommunicationsTTA - Telecommunications Technology AssociationTTC - Telecommunication Technology Committee

GSM - Global System for Mobile CommunicationsUMTS - Universal Mobile Telecommunications System

IETF - Internet Engineering Task ForceITU-R - International Telecommunication Union -RadiocommunicationITU-T - International Telecommunication Union -Telecommunication Standardization

Global Standardization

With With OMA,

OMA, UMTS Forum, GSM

UMTS Forum, GSM--A, GSA, A, GSA, 3G.IP,

3G.IP,

MWIF,MWIF, UWCC, Games Forum, Liberty,

UWCC, Games Forum, Liberty,MobeyMobey ,,

MeTMeT, W3C, Java,

, W3C, Java, WiMAXWiMAX , , SyncML

SyncML , , BluetoothBluetooth SIG,

SIG,

3GPP2, IEEE,…

3GPP2, IEEE,…

•3GPP is responsible for system architecture standardisation for GSM/WCDMA

•IETF protocols to be used as applicable in 3GPP systems

•Role of local / regional standards organisations has decreased.

•3GPP2 is standardisingcdma2000 evolution

•Industry forums and de facto standards to play increasing role in market making, technology development andstandardisation


Basic GSM Network and It’s Subsystems

MS

HLR/AuC/EIR

MSC/VLRBTS

X.25

ISDNPSTN PSPDN

CSPDN

Network Management (NMS)

BSS NSS

Um A


Value Added Service Platform

MS

HLR/AuC/EIR

MSC/VLRBTS

X.25

ISDNPSTN PSPDN

CSPDN


BSS NSS

Um A

VAS


Intelligent Network

MS

HLR/AuC/EIR

MSC/VLRBTS

X.25

ISDNPSTN PSPDN

CSPDN


BSS NSS

Um A

VAS

IN


High Speed Circuit Switched Data (HSCSD)

MS

HLR/AuC/EIR

MSC/VLRBTS

X.25

ISDNPSTN PSPDN

CSPDN


BSS NSS

Um A

VAS

INHW&SW Changes for HSCSD


General Packet Radio Service (GPRS)

MS

HLR/AuC/EIR

MSC/VLRBTS

X.25

ISDNPSTN PSPDN

CSPDN


BSS NSS

Um A

VAS

INHW&SW Changes for GPRS

GPRS Packet Core

Gb

Internet

Other Data NW


Enhanced Data Rates for Global Evolution (EDGE)

MS

HLR/AuC/EIR

MSC/VLRBTS

X.25

ISDNPSTN PSPDN

CSPDN


E-RAN NSS

Um A

VAS

INHW&SW Changes for EDGE

E-GPRS Packet Core

Gb

Internet

Other Data NW


UMTS Network Architecture (3GPP R99 a.k.a R3)

MS

HLR/AuC/EIR

BTS

X.25

ISDNPSTN PSPDN

CSPDN


E-RAN CN CS Domain

Um

A

VAS

CAMEL

CN PS Domain

Gb

BS

UTRAN

Uu

UE

3G MSC/VLR

Iu

Iu

WAP

MExE

Internet

Other Data NW

USAT


3GPP R4 Implementation Scenario


MS BTS

GERAN

CN CS DomainUm

CN PS Domain

BS

UTRAN

Uu

UE

HSS VAS

CAMEL

WAP

MExE

USAT

USAT

CSPDNPSTNISDN

IP, Multimedia

MSC Server

Legend:IMS = IP Multimedia Subsystem

Iu

IMS


Vision of 3GPP R5 (All IP)


MS BTS

GERAN

Um

CN PS DomainBS

UTRAN

Uu

UE

Iu

HSS VAS

CAMEL

WAP

MExE

USAT

USAT

CSPDNPSTNISDN

IP, Multimedia

IMS

Legend:IMS = IP Multimedia Subsystem

IP/ATM

IP/ATM

IP/ATM


3GP

P R

elea

ses

•New radio interface - WCDMA•New RAN architecture - soft handover•New CN-AN interface (transcoder in CN, SGSN functions to RNC)•Open Service Architecture for services•GSM-UMTS interworking

•UTRAN access with some QoS enhancements•CS Domain Evolution, MSC Servers and MGWs, based on IP protocols•IP transport of CN protocols•IP Header compression (IETF)•Location services enhancements, MMS, WAP, MExE, Streaming

•IP Multimedia Services Subsystem – Basic communications platform–SIP signalling, registration, session initiation, IMS SIM, IMS security architecture–Usage of IETF protocols, e.g., IPv6, SIP, Diameter–SIP-based service environment–QoS for IMS: SIP Compression, QoS authorization and policy control

•GERAN alignment with UMTS•WCDMA enhancements (e.g., HSDPA, IP transport)•MMS enhancements, LCS enhancements

March 2000

Release 4Release 4

Release 5Release 5

Release 99Release 99

March 2001

March 2002

•IMS Phase 2–Release 5 left-over items (regulatory requirements, circuit-switched interworking, service based local policy enhancements, etc.)–Optimised voice communications–Presence, Instant Messaging, Group Management and Conferencing

•New Work items: 3GPP/3GPP2 IMS harmonisation (incl. access independency), UMTS-WLAN interworking, Multimedia Broadcast/Multicast Services, etc.

Release 6Release 6

Dec 2003?

"IMS part II"

"Major core ntwrelease"

"Minor release"

"Major RAN release“


3GPP Release 5:

• Consists of network Domains:-Packet Switched CN

Domain -Circuit Switched CN Domain -IP Multimedia CN Subsystem -Services Subsystem

• New features:• GERAN & UTRAN radio• IP transport• Header compression

algorithms• SIP and IPv6 based IP

Multimedia Services• GPRS and QoS

architecture enhancements

• Service toolkits: SIP, OSA, CAMEL, etc.

CS CN Domain PS CN Domain

IM CN Subsystem

Services Subsystem

OSASCP

Framework

MSC

IM-MGWCSCFCSCF

AS

GGSN

SGSN

HLRUMS

SGW

MSC Server

GMSC

MGCFMGCF

MGW

UTRANGERAN

HLR

Iu_cs / A Iu_Ps / Gb

HSS MRFPMRFP

SLFSLF

BGCFBGCF

MRFCMRFC

Mb

UE

CS Domain (incl. MSC servers)Old GSM servicesLittle new functionalityFull service continuityOld terminals supported

IP Multimedia CN subsystemIP way of workingNew servicesStart from "clean table"New terminals required


… and the evolution goes on

Thanks!

Documents

04-01-21 From GSM to UMTS - Aalto · PDF file6 © NOKIA From GSM to UMTS.PPT / 14.01.2003 / A.Ahtiainen 3GPP - Third Generation Partnership Project ARIB - Association of Radio