Post on 01-Jan-2016
description
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 - Sgonicoguido.walcher@telital.com
TELIT GROUP Industries for Telecommunications 2
Wireless scen
arios
Around 1/2 billion new digital handset in 2000
Cellular Mobile Technologiesby Region (based on subscriber)
end 2000
TELIT GROUP Industries for Telecommunications 3
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
TELIT GROUP Industries for Telecommunications 6
TACSNMT
TACSNMT GSMGSM HSCSDHSCSD
EDGEEDGE
GPRSGPRS
UMTSUMTS
Stan
dard
s evolu
tion
scenario
The Access Technologies
TELIT GROUP Industries for Telecommunications 7
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
TELIT GROUP Industries for Telecommunications 8
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.
TELIT GROUP Industries for Telecommunications 10
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
TELIT GROUP Industries for Telecommunications 12
Han
dset evo
lutio
n
• 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
TELIT GROUP Industries for Telecommunications 14
Cellular phonestowards
Smart platforms
Personal Digital Assistant get mobile
Tw
o evo
lutio
n p
aths
TELIT GROUP Industries for Telecommunications 15
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