1 © 1999, cisco systems, inc. course number presentation_id wireless web access survey report john...

1© 1999, Cisco Systems, Inc.

Course NumberPresentation_ID

Wireless Web AccessWireless Web Access Survey Report Survey Report

John LautmannJohn Lautmann

Uma ChandrasekarUma Chandrasekar

2Presentation_ID © 1999, Cisco Systems, Inc.

AgendaAgenda

• Wireless Advantage

• Challenges in wireless implementation

• Wireless Web Architectures

• WAP

• I-Mode

• Comparison of WAP and I-Mode

• Wireless LAN

• Bluetooth


• potential benefits through more flexible, mobile and personal channels of communication.

• An opportunity to fundamentally transform customer relationships

– Creative wireless solutions enable users to access information whenever and however they want.

– Company can “push” data to customers in real-time

• “Any device, Anytime, anywhere” mantra

Wireless AdvantageWireless Advantage


• On the equipment side– Less powerful CPUs

– Less memory (ROM and RAM)

– Restricted power consumption

– Smaller displays

– Different input devices (e.g., a phone keypad, voice input, etc.)

Challenges in Wireless Challenges in Wireless ImplementationImplementation


• On the network side

– Less bandwidth

– More latency

– Less connection stability

– Less predictable availability

Challenges in Wireless Challenges in Wireless ImplementationImplementation


Wireless Web ArchitecturesWireless Web Architectures

Client Device Wireless

Gateway

Web

ServerWireless Receiving

TowerHTTP

Tier 1 Tier 2 Tier 3

Browser

Browser-based wireless architecture

Advantages

• Fast time to market

• Simple development effort

• Works on all devices

Disadvantages

• Unusable without network

• Poor usability

• Poor performance

• Poor battery life



Client Device

Sync

Server

Web


Tower


Thick client

Thick Client Solutions

Advantages

• Always available

• Good usability

• Good performance

• Good battery life

Disadvantages

• Complex development effort

• Slow time to market

• Client software distribution/support

• Unavailable for cell phones

Local data

Sync

Engine



Client Device

AvantGo

Server

Web


Tower


AvantGo

client

Hybrid Solutions

Advantages

• Always available

• Fast time to market

• Good performance

• Simple development effort

Disadvantages

• Very poor usability

• Client software distribution/support

• Unavailable for cell phones

Local Content


What is WAP?What is WAP?

• An open, global standard that empowers mobile users with wireless devices to easily access and interact with information and services instantly.

• A standard created by wireless and Internet companies around the world to make accessing the Internet as easy and convenient as using a cellular phone


WAP – An extension of the WAP – An extension of the Internet ModelInternet Model


WAP ArchitectureWAP Architecture


WAP Offers WAP Offers Bearer IndependenceBearer Independence

• Allows Applications developed once to work across all networks -- today and tomorrow

• Protects the Carrier’s investment in wireless data as networks evolve

• Enables Mobile Device Manufacturers to use common code across product lines


WAP Provides WAP Provides Device IndependenceDevice Independence

• Allows applications developed once to work across devices from small handsets to powerful PDAs

• Promotes consistent user experience across all of a carrier’s handset offerings

• Encourages wealth of applications for handset manufacturers that implement the standard


WAP provides a “microbrowser” WAP provides a “microbrowser” optimized for wireless devicesoptimized for wireless devices

• Requiring minimal RAM, ROM, Display, CPU and keys

• Providing carriers with consistent service UI across devices

• Providing Internet compatibility

• Enabling wide array of available content and applications


Converging WithConverging WithAn XML WorldAn XML World

• WAP is already prepared for convergence

• Understanding the “module” effect

Content availability increases because less code is needed to render sites properly instead of re-writing whole sites

• WAP complies with W3C’s recently approved XHTML standard


So - Why WAP?So - Why WAP?

• An open industry-established world standard

• Based on Internet standards includingXML and IP

• Committed to by handset manufacturers representing over 95% of the world market across all technologies

• Supported by network operators representing over 200 million subscribers


WAP BenefitsWAP Benefits

• WAP delivers revenue opportunities for carriers

• WAP offers a broad market for developers

• WAP means increased sales for device, infrastructure and gateway manufacturers

• WAP means freedom to the end user


• Location-based services

Real-time traffic reporting

Event/restaurant recommendation

Highly customized ads

Instant messaging-type “buddy” location

• Enterprise solutions

Email access

Database access

A “global intranet”

Information updates “pushed” to WAP devices

WAP’s “Killer Apps”WAP’s “Killer Apps”


• Gaming, Gambling and Entertainment

Online, real-time, multi-player games

Downloadable horoscopes, cartoons, quotes, advice

• “M”-Commerce - Shopping on the go

Instant comparison shopping

Impulse buying

Location-based special offers and sales

• Financial services

Banking, Bill-paying, Stock trading, Funds transfers

• Travel services

Schedules and rescheduling

Reservations

WAP’s “Killer Apps”WAP’s “Killer Apps”


I-ModeI-Mode

• In addition to conventional voice communications, users can access a wide range of sites by simply pressing the i-mode key.

• The convenient and useful service lineup includes mobile banking and ticket reservations.

• I-mode employs packet data transmission (9600bps), so communications fees are charged by the amount of data transmitted/received rather than the amount of time online.

• i-mode is compatible with Internet e-mail and can also transfer mail between i-mode terminals.


I-Mode FeaturesI-Mode Features


I-Mode StructureI-Mode Structure

Connecting to sites, receiving messages and transmitting e-mail are done via the DoCoMo i-mode center.


NTTDoCoMo(I-Mode)

European and North AmericanMobile Operators(WAP)

IndustryValue Chain

By controlling all aspects includinghandset specifications and theinterface, branding, and content,DoCoMo has become the i-modevalue chain.

With carriers and content providersvying for ownership of the consumer, afragmented value chain has evolved.

TechnologyversusContent

Content has been at the core ofthe service and was in placebefore the technology.

Offers diverse contentcategorized into four areas: on-line transactions, entertainment,databases and information.

As of 2000, the service offered25,100 content sites, 1,100official and 24,000 unofficial.

The WAP standard wasdeveloped and the contentfollowed.

Content has focused on financialand information services.

Comparison I-Mode & WAPComparison I-Mode & WAP



NTTDoCoMo(I-Mode)

European and North AmericanMobile Operators(WAP)

cHTML vsWML

Based on language of traditionalInternet, cHTML has made it easyfor developers to create ‘unofficial’content.

Developers must learn a newlanguage.

Limited number of sites writtenfor WAP.

Networks Packet data network with ‘always’ onconnectivity.

Dial-up GSM and other 2G networks

Licensingcosts

Granted spectrum access undergovernment revenue sharing scheme.

European operators have been ladenwith the high cost of UTMS licensingcosts.

BillingSystem

Customers are charged flat rateof ¥300 ($3.00) and the cost ofdata transmitted.

WAP users are billed for theabout of airtime it takes to receivedata.

Use i-mode users view 300 to 400 Webpages a month.

WAP users access the Internet less thanonce a week


Wireless Network CharacteristicsWireless Network Characteristics

• Low bandwidth / Wide coverage areaCDPD

• High bandwidth / Short distances802.11a / 802.11bBluetoothInfrared


Infrared Lan interconnectInfrared Lan interconnect

• Can use to sync handheld devices with Avantgo

• Use Microsoft ActiveSync to update handheld

• Can connect to internet at speeds of up to 4Mbps


Wireless Network Wireless Network EvolutionEvolution

Generation Wireless Technology

1G AMPS advanced mobile phone system

2G TDMA time division multiple accessCDMA code division multiple access

GSM global system for mobile comm.

2.5G Enhanced TDMA, CDMA, GSM

3G Cdma2000 QualcomW-CDMA wideband CDMA


Wireless Network Speed Wireless Network Speed ComparisonComparison

Technology Speed

CDPD 19.2 Kbps

Infrared IRDA 115 Kbps (1-4 Mbps extension)

Bluetooth 723 Kbps

802.11b 11 Mbps

802.11a 54 Mbps


WirelessWireless Network Uses Network Uses

Technology Function

CDPD Short text bursts – stock quotes sports scores

Infrared Device interconnect, data sync

Bluetooth Device interconnect, voice

802.11b Lan replacement, multimedia

802.11a High Speed Lan replacement


Summary of Wireless NetworksSummary of Wireless Networks


Wireless Wireless Network SecurityNetwork Security

• 802.11b Wired Equivalent PrivacyProtect wireless data to an

equivalent level of privacy of wired networks

• Uses 40, 64, 128 bit encryption

• WEP2 standard (802.11e) in progress


Mobile IP enables Wireless Mobile IP enables Wireless FreedomFreedom

• Mobile IP provides users the freedom to roam beyond their home subnet while consistently maintaining their home IP address

• Enables sessions to be maintained in spite of physical movement between points of attachment to the Internet or other networks

1 © 1999, cisco systems, inc. course number presentation_id wireless web access survey report john...

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