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TELIT GROUP Industries for Telecommunications 1

27th F

ebru

ary 2001

Towards 3G Cellular Systems

SCHOOL ON DIGITAL

AND MULTIMEDIA

COMMUNICATIONS

USING TERRESTRIAL

AND SATELLITE

RADIO LINKS

TELIT MOBILE TERMINALS

Guido WalcherTelit Mobile Terminals S.p.A.Strategies and Product Planningv.le Stazione di Prosecco 5/B34010 - [email protected]


Wireless scen

arios

Around 1/2 billion new digital handset in 2000

Cellular Mobile Technologiesby Region (based on subscriber)

end 2000


IMT 2000

CDMAIS - 95

TDMAIS - 136

PCS(s)

PHSARIB-28

DCS1800

GSM900

PDC 800/1500ARIB-27D

ETACS

NAMPS

TDMA

AnalogJTACS

R2000

C-NETZetc.

Globalstar

DECTCT1

AMPS

RTMS

TACS

CDMA 2000 (MC)

WCDMA (FDD)

TD CDMA (TDD)

UTRAN

3G

GSMGPRS

2,5 G

EDGE

ARIB WCDMA

TD SCDMA

Japan

China

Europe

USA

UMTS

Stan

dard

s evolu

tion

scenario


Stan

dard

s evolu

tion

scenario


TACSNMT

GSMHSCSD EDGE

GPRS

UMTS

Stan

dard

s evolu

tion

scenario

The Access Technologies


2.4K

Services 56K

384K

9.6KData rate

ETACS GSM GPRS UMTS 1G 2G 2,5G 3G

Services en

han

cemen

t

Voice

MultimediaFrom Voice to Multimedia


En

ablin

g T

echn

olo

gies

WAPBluetooth

Java for planned higher bandwidth (Internet) data services

Wap allows an efficient way of accessing the web through a mobile terminal. It allows the viewing of images for example on a small display. Although WAP has not taken off as initially predicted, the introduction of ‘always on’ networks is likely to increase the WAP uptake amongst users. Also, with a new version of WAP being sought incorporating X-HTML, which is also the direction in which the internet world is going, WAP is likely to offer more to the end user.

Bluetooth offers a specification for short range RF connectivity. This technology will allow handsets to be wirelessly linked to a range of devices such as headphones and laptops.

Java is emerging as a key enabling technology facilitating enhanced access to content by providing better graphics and interactive features such as the download of games and music. Expectations are that by the end of 2003, 60% of all phones will be capable of running Java applications.


Th

e User T

ermin

al


Pro

toco

ls

Relay

NetworkService

GTP

Application

IP / X.25

SNDCP

LLC

RLC

MAC

GSM RF

SNDCP

LLC

BSSGP

L1bis

RLC

MAC

GSM RF

BSSGP

L1bis

Relay

L2

L1

IP

L2

L1

IP

GTP

IP / X.25

Um Gb Gn GiMS BSS SGSN GGSN

NetworkService

UDP /TCP

UDP /TCP

GTP GPRS Tunneling ProtocolSNDCP Sub-network Dependent Convergence ProtocolBSSGP Base Station System GPRS ProtocolLLC Logical Link ControlRLC Radio Link Control


Han

dset e

volu

tion


Han

dset e

volu

tion

• GSM/EDGE/UMTS

• 2001 - 2003

• Location by triangulation

• MP3

• WAP• WindowsCE• EPOC

• Bluetooth multi-point

• Security and Identification

• GPS

• digital audio

• Speech to text

• MPEG4 - H 323

• low rate video

• FM radio

• WAP, EXCE, HTML• E-commerce support • Interactive games• JAVA

• PC type applications

• Video conferencing

• Full MPEG4

• Bluetooth

VideoData

Audio

Others

LCD FLASH

RF, PA,

BB, Modem,S/W,

ApplicationCo-Processor

• GSM/GPRS/EDGE•2000-2002

• GSM/UMTS•2002 - 2004


Han

dset e

volu

tion


Cellular phonestowards

Smart platforms

Personal Digital Assistant get mobile

Tw

o evo

lutio

n p

aths


Especially in the early stages of service roll-out which will be focused on metropolitan areas initially, the handsets will have to be dual mode. It is important therefore, that handsets should be backward compatible with intermediate standards such as GPRS. Several combinations of multi-mode handsets will be required.

Displays will be larger, be in color and offer higher resolutions comparable to present PC resolutions. They will also have to offer increased refresh times to support viewing images and video conferencing.

To accommodate technologies such as video coding and over-the-air upgrades, handsets will be 20 to 30 times more complex as enhanced processing and memorycapabilities incorporated within.

Power consumption will also be a factor as consumers will expect at least the same performance as second generation phones which offer up to eight hours of talk

and 200 hours of standby time.

Han

dset p

arameters

Multi modeEnhanced screenComplexity like a PCHigh autonomy

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Technology

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