[1]

Mobile Internet Connectivity

Presented By:

IQxplorer

TECHNICAL SEMINAR

[2]

INTRODUCTION

• WHAT IS IT?

• Technology that facilitates internet access by enabling the user to access the internet while away from their LAN of their institution

• Technology that allows users to connect to the internet with high data rates than home-use broadband connections

[3]

TYPES OF M.I.C Global system for mobile communication(GSM):for voice communications

and small data transfer

High speed circuit switched data(HSCSD):allows GSM for faster data transfer(4 times)

General packet radio services(GPRS):to give increased data rates, charging based on the amount of data transfer

Third generation(3G) mobile:increased data rates(maximum upto 2mbps) and wide range of services

Enhanced data GSM environment(EDGE):co-exists with GSM. Allow GSM operators for 3G spectrum providing users a data rate upto 554mbps

[4]

TYPES OF M.I.C

Public access WLAN:enable users to access internet in localised ‘hotspots’ via a WLAN access card and a PDA or laptop

Linked public access WLANS :to link number of public access WLANS for high speed access

Public access WLAN and mobile telecommunication convergences:allows users / devices to swap between a telecommunication technology (eg. GPRS, 3G) and PAWLAN to enjoy the highest available data rate, depending on their geographical location

[5]

HOW DOES IT WORK? (A)MOBILE TELECOMMUNICATIONS

• GSM• HSCSD• GPRS• 3G MOBILE• EDGE

(B)PUBLIC ACCESS WLANs• LINKED PUBLIC ACCESS WLANS

GSM :A CIRCUIT SWITCHED-BASED TECHNOLOGY MAINLY FOR VOICE TRANSMISSION AND TO CARRY DATA SUCH AS TEXT TO ACCESS EMAIL AND THE INTERNET.

– LIMITED DATA RATES UPTO 9.6Kbps– SLOW COMMERCIAL INTERNET ACCESS

[6]

HOW DOES M.I.C WORK? HSCSD: BASED ON GSM AND CREATED TO MEET THE DATA

TRANSFER RATE LIMITATIONS OF GSM– CAN ACHIEVE MAX DATA TRANSFER RATE OF 38.4Kbps

– BASED ON CIRCUIT SWITCHED TECHNOLOGY, SO USER ARE CHARGED FOR THE TIME DATA TAKES TO DOWNLOAD RATHER THAN AMOUNT OF DATA

GPRS: A PACKET SWITCHED-BASED TECHNOLOGY

– THEORETICALLY MUCH HIGHER DATA-TRANSFER RATES THAN GSM OR HSCSD

– USERS ARE CHARGES ACCORDING TO THE AMOUNT OF DATA SENT OR RECEIVED RATHER THAN THE TIME TAKEN TO DOWNLOAD

– DATA TRANSFER RATE UPTO 115Kbps

[7]

HOW DOES M.I.C WORK? MOBILE DEVICES FOR GPRS

MODE CLASS:CLASS A SUPPORTS GPRS AND OTHER GSM SERVICES,SUCH AS SMS AND VOICE,SIMULTANEOUSLY

CLASS B CAN MONITOR GSM AND GPRS CHANNELS SIMULTANEOUSLY, BUT ONLY ONE SERVICE AT A TIME

HIGHER THE CLASS , THE FASTER THE UPLOAD CAPABILITIES OF A DEVICE

3G MOBILE :A SET OF STANDARDS ALLOWS MIC ROAMING AT ENHANCED SPEED

PACKET MODE TECHNOLOGY ALLOWS VOICE, TEXT AND MULTIMEDIA SERVICES ON ONE DEVICE

SPEED RANGING FROM 64Kbps TO 384Kbps/2Mbps

[8]

HOW DOES M.I.C WORK? EDGE: ENHANCES GSM N/Ws AT 3G DATA RATES

DATA RATES UPTO 384Kbps IN WIDE AREA AND UPTO 554Kbps IN LOCAL AREA

PUBLIC ACCESS WLANs: CONNECTED TO INTERNET VIA A WIRED TECHNOLOGY CONNECTION

RANGE AROUND 100 MTRS, DATA RATES MORE THAN 4 TIMES OF 3G N/W

LINKED PUBLIC ACCESS WLAN: BY OVERLAPPING THE WLAN CELLS TO BUILD LARGER WLANs

[9]

ADVANTAGES COMPARED TO FIXED LINE INTERNET CONNECTIVITY

PORTABILITY OF DEVICES AND SERVICES

OFFERS A HIGH DEGREE OF COMPATIBILITY AND INTER-OPERABILITY WITH SERVICES

USERS CAN ACCESS THEIR INTRANET AND MAIL SERVICES WHEN AWAY FROM THEIR INSTITUTION

[10]

DISADVANTAGES COMPARED TO FIXED LINE INTERNET CONNECTIVITY

DUE TO PORTABILITY OF DEVICES, AVAILABILITY OF INFORMATION ON SCREEN IS LESS

SLOWER DOWNLOADIND AND UPLOADING DATA RATES

DATA RATES DECREASES AS THE DISTANCE FROM BASE STATION INCREASES

RELIABILITY OF ACCESS IN RURAL AND MOUNTAIN REGIONS

EXPENSIVE EQUIPMENTS

[11]

DEVICES ARE NOT ALWAYS COMPATIBLE WITH DEVICES USING DIFFERENT MIC TECHNOLOGY

MORE EXPENSIVE THAN FIXED NETWORK INTERNET CONNECTIVITY

NETWORK SECURITY

SECURITY OF DEVICES AND THE DATA THEY CONTAIN

[12]

ISSUES IN CONTRACTS AND EQUIPMENTSCOST OF ACCESS DEVICES AND SUBSCRIPTIONS

COMMERCIALLY AVAILABILITY OF TECHNOLOGIES

N/W DATA RATES

N/W RANGE AND COVERAGE

DEVICES

PRICE

NETWORK SERVICE PROVIDER

SECURITY

COMPATIBILITY ISSUES

REMOTE ACCESS

SUPPORT

TRAINING

BATTERY LIFE

[13]

IMPLEMENTAION ISSUES ISSUES FOR INDIVIDUAL

TERIFF FOR USER NEEDS

SUITABLE ACCESS DEVICE

ISSUES FOR THE INSTITUTION NETWORK CHOICE

COMPATIBILITY

REMOTE ACCESS

[14]

STANDARDS

ITU

ETSI

BLUETOOTH

IEEE WLAN STANDARDS

[15]

CONCLUSION

Although mobile internet connectivity has many advantages and disadvantages to its side, it provides a greater chance for compatibility and portability of services with a varieties of flavours.

[16]

THANK YOU…