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WIRELESS TECHNOLOGY FOR INTERNET -SATELLITE AND 3G MOBILE.

sekyan_f@mtn.co.ug

FRED SEKYANA

CORPORATE SERVICE ENGINEER

MTN UGANDA

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PRESENTATION CONTENT

• GROWTH OF MOBILE WORLDWIDE & IN THE DEVELOPING WORLD

• CONVENTIONAL WAYS OF ACCESSING THE INTERNET

• ERICSSON’S WEB ON AIR• WAP• GPRS• THIRD GENERATION MOBILE• CONCLUSION

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GROWTH OF MOBILE WORLD WIDE & IN THE DEVELOPING WORLD

• Wireless Technologies.

• GSM - worldwide success

• GSM approaches half a billion customers

• 285 million by end of March 2000

• 77% growth in 1999

• Dominant global wireless system

• 500 million by mid 2001

• Developing nations

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CONVENTIONAL WAYS OF ACESSING THE INTERNET

• Fixed Telephone Network - PSTN• Concerns– Availability of lines– Modem limitations

• Mobile access via PSTN– interconnect limitations– Multiple connections & poor line quality.– High tariffs for interconnect & mobile– New Technologies (ADSL)

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ERICSSONS WEB ON AIR• Overview of Web on Air filter proxy

– Layout of WOA

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WOA LAYOUT

SWITCH ACCESSSERVER

WOA GATEWAY

INTERNET

Mobile Subscriber

Figure 1

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ERICSSONS WEB ON AIR

Key features of WOA filter proxy• TCP/IP & HTTP 1.0 \ HTTP 1.1 compliant• Support of gateway proxies• Supports of multiple operating systems• Distillation of images• User defined configurations• Support for several proxies

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WAP- Wireless Application Protocol• WAP

– provides end users with new services– 800 million in 2003– WAP stack:- mobile phone a “1st class citizen of

Internet”, similarities with Internet layers

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WAP STACK

Figure 2

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WAP- Wireless Application ProtocolWAP entities-

• micro browser, WML , WTAI, Content formats, layered telecommunication stack

– WAP applications (information retrieval, mobile e-commerce, notification applications, serviceman applications, telephony applications)

– Benefits of WAP

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GPRSGPRS - General Packet Radio Service• new nonvoice value added service• Layout of GPRS core network

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GPRS CORE NETWORK

GPRSBACKBONE

BSC

SGSN GGSN

Charging Gateway

Billing system

CG

INTERNET

Gateway GPRSSupport Node

Serving GPRSSupport Node.(Same Hierarchical levelas MSC)

BaseStationController

Figure 3

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GPRSKey user features of GPRS

– Speed– Immediacy– New applications, better applications

• Service Access– GPRS enabled phone & valid subscription– Use of GPRS must be enabled for that user

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GPRS– Knowledge of how to send and/or receive GPRS info– a destination to send or receive info through GPRS

• Applications of GPRS– chat , textural & Visual info, still images, moving images,

Web browsing .– document sharing– job dispatch– internet email– file transfer– Home automation

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GPRS - Time sales

• Phase 1 commercially available 2000 & 2001– point to point GPRS but not point to multipoint

• Phase 2 – not yet fully defined– higher data rates possibly incorporating EDGE– point to multi point support

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THIRD GENERATION MOBILE -3G

• three generations of mobile phones have emerged so far

– Analog– Digital– Multimedia

• Different mobile phone standards for first & second generations

– optimal migration path for mobile network operators– 3G will offer broadband mobile communications

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THIRD GENERATION MOBILE -3G• 3G Features

• Internet everywhere

– www is becoming the primary communications interface• High Speed ( Speeds of up to 2Mbps)• New applications, better applications (web browsing, file transfer,

home automation)

• Service access– 3G enabled phone & valid subscription, 3G service enabled.– Knowledge of how to send/ receive 3G info– destination to send/ receive 3G info

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THIRD GENERATION MOBILE - 3G• 3G Talking points

– people will look at mobile phone as much as holding to ear– Data uses will be as important & very different from traditional voice

business– Mobile communications will be similar in capability to fixed

communications.– Mobile phone as an integral part of majority of people’s lives

• 3G is topical and contentious for several reasons:– 3G licenses are being awarded, 3G based on CDMA, Japanese terminal

manufacturers will be first with 3G terminals, Return on an investment in 3G questioned, media & Internet companies interested in bidding for 3G.

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CONCLUSION

• New technical developments in area of mobile– need for high speed data & Internet access services– voice has been the primary wireless application

• Transition from 2G to 3G world• Mobile is the dominant wireless service in developing

World• Mobile access to Internet to become the primary means

of access.