wireless technology for internet - satellite and 3g mobile
TRANSCRIPT
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WIRELESS TECHNOLOGY FOR INTERNET -SATELLITE AND 3G MOBILE.
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.