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4G - Mobile communications

4G - Mobile communications. Where are we? Where do we Want to go? 3G vs 4G 4G Process Challenges. Overview. Hyper Lan- set of wireless Lan 1G-First Generation Speech 2G-Second Generation SMS , MMS CDMA , GPRS , EDGE Voice Mail 3G-Third Generation Wireless Internet

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4G - Mobile communications

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  1. 4G - Mobile communications

  2. Where are we? • Where do we Want to go? • 3G vs 4G • 4G Process • Challenges Overview

  3. Hyper Lan- set of wireless Lan • 1G-First Generation • Speech • 2G-Second Generation • SMS , MMS • CDMA , GPRS , EDGE • Voice Mail • 3G-Third Generation • Wireless Internet • Video Calling • Mobile TV Where are we?

  4. High transfer rate • Internet access any where • Ability to move around with the same IP address • Utilization of Smart antennas • High resolution Mobile TV Where do we Want to go?

  5. GSM/TDMA • Time Division Multiplexing based access • CDMA • Code Division Multiplexing based access • OFDM • Orthogonal Frequency Division Multiplexing Representative Wireless Standards

  6. 3G Vs 4G

  7. What is 4G? The “twelve views” of 4G Higher bit rates User services White space Wireless Internet Service providers Wireless wireline Technology trends New air interface New network Higher bit rates Cost reduction Cost reduction User services White space Wireless Internet Strict generation Is that your final answer? Service providers Wireless wireline Technology trends New air interface 4G will not exist New network

  8. SCENARIO AHEAD HOT SPOTS WORK HOME Public Networks/ Internet Converged services RURAL OUTDOORS VEHICLE PUBLIC TRANSPORT Seamless connectivity to all networks, applications, & services Anytime Anywhere

  9. Everything is IP

  10. Smart Antenna

  11. Service Evolution and Consensus • Machine-to-machine transmission • -Sensors (measure parameters) • -Tags (read/write equipment) • Consented to achieve 500bit/s/Hz/km2 • -HSDPA (High Speed Download Packet Access) • -MIMO • WWI agreed peak rates of 100Mbit/s in mobile • situations1Gbit/s in nomadic/pedestrian situations

  12. To operate large number of users - Parent coverage - Pico-cell coverage 4G Process

  13. Mobile IP • VoIP • Ability to move around with the same IP address • IP tunnels • Intelligent Internet • Presence Awareness Technology • Knowing who is on line and where • Radio Router • Bringing IP to the base station • Smart Antennas • Unique spatial metric for each transmission Key 4G Mibility Concepts

  14. Key Technologies Required for 4G • OFDMA • -Time domain • -Space domain • -Frequency domain

  15. Key Technologies Required for 4G • MIMO • Signal multiplexing between antennas • -Smart antennas • Well suited to OFDM

  16. Coverage • Parent coverage ------ Pico-cell coverage Key Technologies Required for 4G

  17. 4G: Data Rate Facts Transmission at 20 Mbps. 2000 times faster than mobile data rates. 10 times faster than top transmission rates planned in final build out of 3G broadband mobile.

  18. Challenges • Sufficient spectrum with associated sharing mechanisms. • Coverage with two technologies. • Caching technology in the network and terminals. • OFDM and MIMO. • IP mobility. • Multi-technology distributed architecture. • Fixed-mobile convergence (for indoor service). • Network selection mechanisms.

  19. Life-Saving: Telemedicine • Video Conferencing • Telegeoprocessing: GIS,GPS • Better Usage of Multimedia Applications • Voice over Internet Protocol (VoIP) for IPv6 Applications of 4G

  20. Any Queries?

  21. Thank U

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