ONON

IndexIndex

1.1. IntroductionIntroduction2.2. HistoryHistory3.3. 4G wireless technology4G wireless technology4.4. Overview Overview 5.5. Objective & approachObjective & approach6.6. 4G features4G features7.7. 4G standards4G standards8.8. 4G objectives4G objectives9.9. AdvantagesAdvantages10.10. DisadvantagesDisadvantages

INTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTION

4G is a 44G is a 4thth generation mobile communication system generation mobile communication system

They are projected to solve still remaining problems of 3G They are projected to solve still remaining problems of 3G systemsystem

It provides a wide variety of services such as high-data-It provides a wide variety of services such as high-data-rate wireless channelsrate wireless channels

4G will not only support the next generation of mobile 4G will not only support the next generation of mobile service, but also supports the fixed wireless networksservice, but also supports the fixed wireless networks

HistoryHistory The history and evolution of mobile service from 1G to 4G The history and evolution of mobile service from 1G to 4G

are discussed in this section are discussed in this section

1G began with the designs in 1970’s its based on analog 1G began with the designs in 1970’s its based on analog technologytechnology

2G system was designed in 1980’s it provides services circuit 2G system was designed in 1980’s it provides services circuit switched data communication services at a low speedswitched data communication services at a low speed

3G system was designed in 1990’s it would have higher 3G system was designed in 1990’s it would have higher quality voice channelsquality voice channels

4G is new generation intended to complement and replace the 4G is new generation intended to complement and replace the 3G systems. The future 4G infrastructures will consist of a set 3G systems. The future 4G infrastructures will consist of a set of various networks using IP as common protocolof various networks using IP as common protocol

4G wireless Technology4G wireless Technology4G wireless Technology4G wireless Technology

4G is based on the developing trends of mobile 4G is based on the developing trends of mobile communicationcommunication

Application adaptability and being highly dynamic Application adaptability and being highly dynamic are the main features of 4G servicesare the main features of 4G services

4G systems will be fully IP-based wireless internet4G systems will be fully IP-based wireless internet

These services and models need to be further examine These services and models need to be further examine for their interface with the design of 4G systemsfor their interface with the design of 4G systems

4G mobile Communications4G mobile Communications

OverviewOverview

A 4G system is excepted to provide a A 4G system is excepted to provide a comprehensive and secure all-IP based comprehensive and secure all-IP based solution solution

It facilities IP telephony, ultra-broadband It facilities IP telephony, ultra-broadband internet access, gaming services and streamed internet access, gaming services and streamed multimedia may be providedmultimedia may be provided

Objective & approachObjective & approach

A spectrally efficient system A spectrally efficient system High network capacityHigh network capacity A data rate of at least 100mb at high speeds and 1gb A data rate of at least 100mb at high speeds and 1gb

at stationary conditionsat stationary conditions High quality of services for next generation High quality of services for next generation

multimedia supportsmultimedia supports An all IP, packet switched networkAn all IP, packet switched network Interoperability with existing systems.Interoperability with existing systems.

Mobile Technology RoadmapMobile Technology Roadmap

4G Features4G Features

The infrastructure and the terminals of 4G will have The infrastructure and the terminals of 4G will have almost all the standards from 2G to 4G implementedalmost all the standards from 2G to 4G implemented

The first LTE USB dongles do not support any other The first LTE USB dongles do not support any other radio interfaceradio interface

The performance of the radio communication The performance of the radio communication depends on an antenna system depends on an antenna system

One such example is Spatial multiplexing which One such example is Spatial multiplexing which involves deploying antennas at transmitter and involves deploying antennas at transmitter and receiver.receiver.

4G standards4G standards

In September 2009,the technology proposals have In September 2009,the technology proposals have been submitted to ITU-R as 4G candidatesbeen submitted to ITU-R as 4G candidates

LTE advanced will be fully built on the existing LTE LTE advanced will be fully built on the existing LTE specification release 10 and not to be defined as new specification release 10 and not to be defined as new specification seriesspecification series

IEEE 802.16-2004 addresses only fixed systemIEEE 802.16-2004 addresses only fixed system IEEE 802.16e-2005 also called mobile WiMAXIEEE 802.16e-2005 also called mobile WiMAX

AdvantagesAdvantages

The 4G cell phone networks have been The 4G cell phone networks have been established to maximize the use of the internet established to maximize the use of the internet through cell phonesthrough cell phones

Instead of using the computer, people would Instead of using the computer, people would prefer a more portable and simpler toolprefer a more portable and simpler tool

Web browsers are designed for cell phones to Web browsers are designed for cell phones to maximize the functionmaximize the function

The 4G network has made it easier and faster The 4G network has made it easier and faster to acquire all the data and information neededto acquire all the data and information needed

DisadvantagesDisadvantages

4G or 4G enabled phones are more expensive4G or 4G enabled phones are more expensive

4G currently available only in United States. It will 4G currently available only in United States. It will take a years for 4G to available in other countriestake a years for 4G to available in other countries

Upgrading your 3G into 4G is not possible even if Upgrading your 3G into 4G is not possible even if you are ready to buy a phone and wanted to upgrade you are ready to buy a phone and wanted to upgrade to 4G the network is not availableto 4G the network is not available

Sample 4G mobileSample 4G mobile

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