Mig from 2g to 3g

2G to 3G2G to 3G 1/24

2G to 3G2G to 3G Outline of the Lecture

► Operator Evolution Options► GSM migration towards 3G► What is 3G Mobile & 3G Vision ?► 3G Spectrum► Network standardization► Why WCDMA ?► WCDMA Architecture & Applications► Threat to Today’s 3G

2/24

2G to 3G2G to 3G Operator Evolution OptionsOperator Evolution Options

3G offers a logical migratory path from 2G Networks for > 90% of Subscribers

3/24

2G to 3G2G to 3G

BTS — Base Transceiver Station

BSC — Base Station Controller

MSC — Mobile Switching Center

VLR — Visitor Location Register

HLR — Home Location Register

BTS

BSCMSC/VLR

HLRBSC

GMSC

COCO

BSC

BSCMSC/VLR

COPSTN

PLMN

CO

Tandem Tandem

SMS-SC

PSDN

2G - GSM Architecture2G - GSM Architecture

GSM towards 3G 4/24

2G to 3G2G to 3G

SS7BTS

BSC MSCVLR

HLRAuC

GMSC

BSS

PSTN

NSSNSS

AE

CD

PSTNAbis

B

H

MS

General Packet Radio Service

2G MS (voice only)

2.5 G - GPRS Architecture2.5 G - GPRS Architecture

SGSN — Serving GPRS Support Node GGSN — Gateway GPRS Support Node

IP

2G+ MS (voice & data)

PSDNGi

SGSN

Gr

Gb

Gs

GGSN

Gc

Gn

HW & SWChanges

for HSCSD

HW & SWChanges

for HSCSD

►Provide up to 114 Kbps data rate Provide up to 114 Kbps data rate

►Data rates achieved is a step towards UMTSData rates achieved is a step towards UMTS

GSM towards 3G 5/24

2G to 3G2G to 3G

2.75 G – EDGE Architecture2.75 G – EDGE Architecture

►Provide up to 384 kbps data rate, one GPRS terminal gets 8 time slots. Provide up to 384 kbps data rate, one GPRS terminal gets 8 time slots.

►Data rates achieved is almost equal to UMTS, not available everywhere in cell.Data rates achieved is almost equal to UMTS, not available everywhere in cell.

GSM towards 3G 6/24

2G to 3G2G to 3G What is 3G Mobile System ?What is 3G Mobile System ?

Broadband Service

Packet Based Transmission

Transmission of Text, Digitized voice, Video at data rate > 2 Mbps

Consistent set of services to mobile computer and phone users wherever they are located

3G - UMTS Network consists of:

UTRAN (UMTS Terrestrial Radio Access Network) – Uses WCDMA & FDD

CN (Core Network)

UE (User Equipment)

7/24

2G to 3G2G to 3G 3G Vision3G Vision

☻ Common spectrum worldwide (1.8 – 2.2 GHz band)

☻ Multiple radio environments (Cellular, Cordless, Satellite, LANs)

☻ Wide range of telecom services (Voice, Data, Multimedia, Internet)

☻ Increased spectrum efficiency

☻ Data rates up-to 2 Mbps – for indoor environment

☻ Maximum use of IN capabilities

☻ Global seamless Roaming

☻ Enhanced security and performance

☻ Integration of Satellite and Terrestrial systems

8/24

2G to 3G2G to 3G

802 960 MHz

1710

1885 2200 MHz

2690 MHz

2025 2110

1G + 2G

2G (Asia & Europe) + 3G

3G

DECT, PHS + 2G + 3G 3G

1885 MHz

2500

WRC-92WRC-92

WRC-2000WRC-2000

WRC-92WRC-92 WRC-92WRC-92

WRC-2000WRC-2000

WRC-92 & WRC-2000 RecommendedWRC-92 & WRC-2000 Recommended

3G Spectrum3G Spectrum

In India, National Frequency Allocation Plan In India, National Frequency Allocation Plan 2002 has reserved 60 MHz in WARC-92 2002 has reserved 60 MHz in WARC-92 identified band of 1920 - 1980 MHz paired identified band of 1920 - 1980 MHz paired with 2110 - 2170 MHz for 3G. with 2110 - 2170 MHz for 3G.

9/24

2G to 3G2G to 3G

Bearer services 64 kbps circuit switching 384 kbps packet switching Location services

R- 99

Network standardizationNetwork standardization

3GPP define migration from GSM to UMTS (W-CDMA)3GPP define migration from GSM to UMTS (W-CDMA)

3G Partnership Project3G Partnership Project 3GPP Rel. 99 Objectives

10/24

2G to 3G2G to 3G

SS7

IP

BTS

BSC MSCVLR

HLRAuC

GMSC

BSS

SGSN GGSN

PSTN

PSDN

CN

CD

GcGr

Gn Gi

Abis

Gs

B

H

AE PSTN

2G MS (voice only)


Gb

RNS — Radio Network System, RNC — Radio Network Controller

3G UE (voice & data)

Node B

RNC

RNSRNS

Iub

IuCS

ATM

IuPS

3G Rel. 99 Architecture (UMTS) — 3G Radios3G Partnership Project3G Partnership Project

Network standardizationNetwork standardization 11/24

2G to 3G2G to 3G


Edge radio MMS Improved Location services

R- 99

R- 4

3GPP Rel. 4 Objectives3G Partnership Project3G Partnership Project


2G to 3G2G to 3G

SS7

IP/ATM

BTS

BSC MSC ServerVLR

HLRAuC

GMSC server

BSS

SGSN GGSN

PSTN

PSDN

CN

CD

GcGr

Gn Gi

Gb

Abis

Gs

B

H

ANc

2G MS (voice only)


Node B

RNC

RNS

Iub

IuCS

IuPS

3G UE (voice & data)

Mc

CS-MGW

CS-MGWNb

PSTNMc

ATM

3G Rel. 4 Architecture (UMTS) — Soft Switching3G Partnership Project3G Partnership Project


2G to 3G2G to 3G



IP Multimedia Subsystem (IMS) IPv6, IP transport in UTRAN High Speed Downlink Packet Access (HSDPA)

R- 99

R- 4

R- 5



2G to 3G2G to 3G

3G Rel. 5 Architecture (UMTS) — IP based UTRAN3G Partnership Project3G Partnership Project


2G to 3G2G to 3G



IP Multimedia Subsystem (IMS) IPv6, IP transport in UTRAN High Speed Downlink Packet Access (HSDPA)

WLAN integration Multimedia broadcast and Multicast Improvements in IMS, “All IP” Network HSUPA

R- 99

R- 4

R- 5

R- 6



2G to 3G2G to 3G

> 75% of world’s cellular subscribers are on GSM – for migration to 3G.

WCDMA (3GSM) & CDMA 2000 EVDO use the same spread spectrum technology.

WCDMA (3GSM) has a much higher voice capacity.

Wider acceptance of WCDMA (3GSM) technology means significant economies of scale for the suppliers in the long run.

5MHz carrier BW of WCDMA (3GSM) supports high data rates and brings performance benefits.

Channel rates: UL - 15 Kbps to 960 Kbps & DL - 15Kbps to 1920 Kbps

Why WCDMA ?Why WCDMA ? 17/24

2G to 3G2G to 3G

SGSNSGSNSGSNSGSN

GGSNGGSNGGSNGGSN

MSC/VLRMSC/VLR

GMSCGMSC

HLR

AuC

EIR

RNC

NODE-B NODE-BNODE-B

BSC

BTSBTS

BSC

BTS BTSNODE-B

RNC

MSC/VLR

BSSBSS RNSRNS

CN

SIM USIM

ME

PDN & InternetOther NWOther NW

WCDMA Network ArchitectureWCDMA Network Architecture 18/24

WCDMARadio

GSMRadio

GSMRadio

2G to 3G2G to 3G WCDMA ApplicationsWCDMA Applications

World of Mobile Multimedia through WCDMAWorld of Mobile Multimedia through WCDMA

19/24

Public SpherePublic SphereBusiness SphereBusiness Sphere

Private Sphere

2G to 3G2G to 3G

Combined voice and data applicationsCombined voice and data applications

►Today, without “all IP” infrastructure

►Text messaging plus speech recognition-enabled voice services

►Evolve from as new services become available

Multi-application platformMulti-application platform

►Integrate TDM voice and IP data

►Support multiple applications

►Flexible billing and provisioning

Multimodal Services and Multi-Application Platforms

WCDMA ApplicationsWCDMA Applications 20/24

2G to 3G2G to 3G

Sample Multimodal Applications

Travel informationTravel information

►Make request via voice, Receive response in text

►Get updates while traveling via voice or SMS or rich graphics

One-to-many messagingOne-to-many messaging

►Record message via voice or text

►Deliver message via voice, SMS, WAP, or email

Unified communicationsUnified communications

►While listening to a voice message, obtain a text display of recent customer activity

Emergency response teamEmergency response team

►Voice conference and text updates while traveling to site of emergency

WCDMA ApplicationsWCDMA Applications 21/24

NewsNews

2G to 3G2G to 3G

Faster than 3G

►11 or 56 Mbps vs. <2 Mbps for 3G when stationary

Data experience matches the Internet

►Same user interface (doesn’t rely on small screens)

►Same programs, Files, Applications, Websites.

Low cost, low barriers to entry

Organizations can build their own networks

►Like the Internet, will grow virally

Opportunity for entrepreneurs!

Opportunity for wireless operators?

Threat to Today’s 3G — Wireless Threat to Today’s 3G — Wireless LANsLANs

22/24

2G to 3G2G to 3G

WCDMA most natural migration from GSM

Designed for rich data content

Different services with QoS

More spectrum for voice

Continue GSM’s global roaming

Wire-free world replacing wired world

Interoperable standards, Applications and VAS

Encapsulates vision of global wireless village

WCDMA most natural migration from GSM

Designed for rich data content

Different services with QoS

More spectrum for voice

Continue GSM’s global roaming

Wire-free world replacing wired world

Interoperable standards, Applications and VAS

Encapsulates vision of global wireless village

ConclusionsConclusions 23/24

2G to 3G2G to 3G 24/24

Documents

Mig from 2g to 3g