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Why do we need packet data ?

In Circuit Switched Data, the data rate and delay can be guaranteed and therefore is ideal for real time services such as video transmission.

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Why do we need packet data ?

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  1. In Circuit Switched Data, the data rate and delay can be guaranteed and therefore is ideal for real time services such as video transmission. GPRS on the other hand is more suited to bursty traffic such as web browsing and telemetry and the provision of some new network elements is necessary to provide these services. When compared to Circuit Switched Data, GPRS has a number of advantages when it comes to Internet connections and links with other packet switched networks. Why do we need packet data ?

  2. If a user use a circuit data and want to be always on-line, he needs to monopolize a radio channel ( and pay for it ! ), even when he does not send any data With packet data, a user can stay connected ( always on-line ) and pay only for the amount of data that he send/receive Packet Data

  3. An Upgrade to existing networks An integral part of EDGE and WCDMA GPRS Internet / Intranets GPRS Packet Switched Add-on PSTN ( Public Switched Telephone Network ) Radio Access Network GSM Circuit Switched Network

  4. Faster than GPRS Much Cheaper than 3G EDGE : Conclusion ?

  5. Conversational Low delay, preserve time relation between packets Voice, highly intensive games Streaming preserve time relation between packets, delay not critical Streaming media Interactive Request response pattern, preserve data integrity Web browsing Background Non-time critical data, preserve data integrity Background synchronization, download …etc Quality of Service Classes

  6. Evolution : different radio access on the same core network PSTN GSM/GPRS BTS BSC MSC Packet Data Network EDGE/GPRS BTS RNC GGSN SGSN WCDMA BTS

  7. Quality of service comparable to fixed voice networks Bit rates up to 2 Mbps Variety of terminals Flexible architecture to add additional applications IMT-2000 recommendations

  8. Short range radio technology that enables many different shapes and functionalities from different vendors to communicate. The technology operates in 2.4 GHz frequency. It is designed to be small and power efficient and is expected to be included in a huge variety of devices ( mobile phone, PDA, computer …etc ) Bluetooth

  9. Low power Low cost Small footprint Speech and data transmission It has to work worldwide Requirements for Bluetooth :

  10. Directional vs Omni Directional

  11. Omni directional Not limited to point to point connection Small LAN can be set up Can serve as short range Internet bridge Short radio ( 10 m – 100 m, depend on power ) Bit rate ( 433 kbps for symmetric transfer and 722 kbps for asynchronous transfer ) Main features

  12. Available Bit Rates Kbps

  13. Piconet ( up to 8 units ) Scatternet Bluetooth has a maximum of 79 frequencies. Bluetooth networking profile Piconet Piconet Piconet

  14. Jasa Nilai Tambah GSM Recipe for killer applications

  15. Movement : escaping the fixed place Moment : expanding the concept of time Me : extending myself and my community Money : expanding financial resources Machine : empowering gadgets The 5 M’s

  16. Mobility Locality Globality Home Base Positioning Movement : escaping the fixed place

  17. E.g. Car driver looking for the nearest hotel The service keep track of where you are and dynamically offer you the most appropriate service or information as you move The service should move beyond any location and its information automatically as you drive on past it Mobility

  18. The service provide specific local information. E.g. Weather, local entertainment …etc Locality

  19. Some services need to provide the same information worldwide E.g. CNN News, Wall Street Financial News …etc Globality

  20. If the service knows where your home base interest is, it can provide the home-town information Home Base

  21. Identifying the physical presence of mobile phones Positioning

  22. Plan Postpone Fill time Catch Up Multi-task Real-Time Moment – expanding the concept of time

  23. Planning is critical to efficient use of time. E.g. see what the team members are doing to try to find a common time for a meeting Postpone : Making last minutes change or last minute decision. Filling time : doing things with sudden idle time, e.g. reading e-mail while waiting at airport, read the news in the taxi Catching up : trying to recover lost time, e.g. reading yesterday’s newspaper Multi-tasking : to do multiple things at the same time Real-time : delivering services when they occur ( stock price information ) Moment

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