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GPRS Technology


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GPRS data services and applications

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GPRS Technology

  2. 2. 2 Modes of GPRS - Application mode - Tunneling mode GPRS Terminals - Class A - Class B - Class C GPRS device type Network service in GPRS - PTP - PTM Data services in GPRS - SMS - WAP - MMS Applications of GPRS
  3. 3. A wide range of corporate and consumer applications are enabled by GPRS services. A user is likely to use either of two modes of GPRS network. Application Mode Tunneling Mode 3
  4. 4. In this mode user will be using the GPRS mode phone to access the applications running on the phone itself. The phone acts as the end user device. All GPRS phones have WAP browser as an embedded application. This browser allows browsing of WAP sites. The device operating executed environments supported are Symbian, J2ME. Application can be developed in C/C++ or java. 4
  5. 5. Tunneling mode is for mobile computing where the user will use the GPRS interface as an access to the network. The end user device will be a large footprint device like laptop computer or small footprint device like PDA. The mobile phone will be connected to the device and used as modem or cable to access the wireless data network. 5
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  7. 7. GPRS terminal can be one of the three classes 7 GPRS TERMINALS CLASS A CLASS B CLASS C
  8. 8. 8 CLASS A Supports GPRS data and other GSM services simultaneously. Simultaneous attach, activation, monitor and traffic. Can make or receive calls on two services simultaneously. SMS is supported. SMS can be received while call or data service in progress.
  9. 9. 9 Can support only one of these services at any time. Can support simultaneous attach, activation, and monitoring but not simultaneous traffic. Users can make or receive calls on either a packet or a switched call type sequentially but not simultaneously. SMS is supported CLASS B
  10. 10. Supports only non-simultaneous attach. The user must select which service to connect to. Therefore, a class c terminal can make or receive calls from only the manually selected network service. SMS is optional when data service enable . 10 CLASS C
  11. 11. 11 MODE ATTACHED TO SUPPORT Class A Both GPRS and GSM services Simultaneous attach + monitor + traffic Class B Both GPRS and GSM services Only operate one set of service at a time Class C Either GPRS or GSM services Alternate use only
  12. 12. 12 DEVICE TYPE Numeric keypad and small display Color display, with camera built-in voice, icon drive screen, built-in keyboard
  13. 13. Bearer services of GPRS offer end-to-end packet switched data transfer. GPRS supports two different kinds of data transport services: 13 BEARER services in GPRS Point - To - Point service (PTP) Point - To - Multipoint service (PTM)
  15. 15. 15 Point-To-Point (PTP) services - transfer of data packets between two user
  16. 16. 16 Point-To-Multipoint (PTM) services - transfer of data packets from single user to multi- user
  17. 17. 17 PTM - M PTM - G PTM- M : Multipoint Multicast service to all subscribers in a given area PTM- G : Multipoint Group service to pre- determined group that may be dispersed over a geographic area.
  18. 18. SMS WAP MMS 18 DATA SERVICE IN GPRS GPRS offered the following data services
  19. 19. 19 Short message service was originally designed for GSM network. GPRS will continue to support SMS as a bearer. If SMS over GPRS, it is achieved 30 message per minute. In GSM only 6 to 10 messages achieved.
  20. 20. 20 MMS is Multimedia Messaging Service. This is the next generation messaging service. MMS supports multimedia messages. MMS uses WAP and SMS . Video, audio, picture or clips can be sent through MMS.
  21. 21. 21 WAP is Wireless Application Protocol. It is data bearer service over HTTP protocol. WAP uses WML and WAP gateway. WAP
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  23. 23. 23 Chat Multimedia services Virtual Private Network (VPN) Personal information management Job sheet dispatch Unified messaging Vehicles positioning Location- based services and telematics
  24. 24. 24 Vehicles Positioning
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