3g 4g ppt


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3g 4g ppt

  1. 1. WELCOME<br />INTRODUCTION TO<br />1G.<br /><ul><li>2G..</li></ul>3G…<br />MOBILES<br />4G.…<br />
  2. 2. 1G WIRELESS TECHNOLOGY<br /><ul><li> Using Analog signals
  3. 3. Listen to handset
  4. 4. Frequency typically 150MHz & above</li></li></ul><li>DRAWBACKS OF 1G<br /><ul><li> Poor voice quality
  5. 5. Poor battery life
  6. 6. Large phone size
  7. 7. No security
  8. 8. Frequent call drops
  9. 9. Limited capacity and poor handoff </li></ul> reliability.<br />
  10. 10. SECOND GENERATION<br /><ul><li>2G phones using global system for mobile communications (GSM) were first used in the early 1990 s in Europe. GSM provides voice and limited data services and uses digital modulation for improved audio quality. Digital AMPS , CDMA were some of the 2G systems.
  12. 12. Text
  13. 13. SMS
  14. 14. Fax
  15. 15. 2 Dimensional</li></li></ul><li>DRAWBACKS OF <br /><ul><li>The GSM is a circuit switched , connection oriented technology, where the end systems are dedicated for the entire call session.
  16. 16. This causes inefficiency in usage of bandwidth and resources.The GSM enabled systems do not support high data rates. They are unable to handle complex data such as video.
  17. 17. Reduce range of sound.
  18. 18. Weaker digital signal.</li></li></ul><li>2.5G WIRELESS<br /><ul><li>An interim stage that is taken between 2G and </li></ul> 3G that is 2.5G<br /><ul><li>Features includes:-
  19. 19. Phone calls/ Fax
  20. 20. Voice mail
  21. 21. Send/Receive e-mail messages
  22. 22. web browsing
  23. 23. camera phones
  24. 24. speed: 64-144 kb/sec
  25. 25. Time to download a 3 min MP3 song: 6-9 min</li></li></ul><li>THIRD GENERATION<br />To meet the growing demand in network capacity, rates required for high speed data transfer and multimedia applications , 3G standards started evolving.<br />It is based on the International<br />Telecommunication Union (ITU) family of standards.<br />3G technologies enable network operators to offer users a wider range of more advanced services.<br />Services include wide-area wireless voice telephony, video-calls and broadband wireless data , all in a mobile environment.<br />The data are sent through the technology called<br /> Packet switching.Voice calls are interpreted <br /> through circuit switching. <br />
  26. 26. Features includes<br />Phone calls/ fax<br />Global roaming<br /> Send/receive large email messages<br />High speed web<br />Navigation / maps<br />Video conferencing<br />TV streaming<br />Electronic agenda meeting reminder<br />Speed:200 kb/sec-2mb/sec<br />Time to download a 3 min MP3 song:<br />11 sec-1.5 min <br />
  27. 27. MUSIC ON YOUR MOBILE!!<br />Music is an important mobile<br /> content category.<br />Mobiles can’t compete with Ipods<br /> etc.<br />True mobility immediate & direct <br /> access to downloadable music,with <br /> no cables or PC. <br />
  28. 28. Taking games to the<br /> next level<br />3G technology has taken the gaming to the next level.<br /> Real-time multiplayer gaming is possible in 3G system.<br />Innovative new services are being added by developer daily. <br />
  29. 29. EXTENDING TV TO MOBILES<br />Not simply rebroadcast of TV or website.<br />Enhanced existing service for mobile <br /> environment.<br />Multi-faceted – 24*7 access to multiple <br /> live streams , video , image & text <br /> content , voting , messaging.<br />User interaction on multiple levels.<br />Fully integrated in browser – one click <br /> access. <br />Video-Conferencing<br />
  30. 30. ADVANTAGES OF<br /> New radio spectrum to relieve overcrowding <br /> in existing systems.<br /> More bandwidth , security & reliability.<br /> Inter-portability between services providers.<br /> High data rates.<br /> Rich multimedia services.<br /> Always online devices.<br />
  31. 31. DISADVANTAGES OF<br />Expensive input fees for the 3G service licenses.<br />Numerous differences in the licensing terms.<br />It is a challenge to build the necessary<br /> infrastructure for 3G<br /> Expense of 3G phones .<br />Lack of buy-in by 2G mobile users for the new 3G <br /> wireless services.<br />Large cell phones.<br />
  32. 32. 4G<br />ANYTIME,ANYWHERE CONNECTION<br />Also known as “Mobile Broadband Everywhere”<br />One of the terms used to describe 4G is:<br />MAGIC Mobile Multimedia<br />Anytime Anywhere<br />Global mobility Support<br />Integrated wireless solution and<br />Customized personal service.<br />
  33. 33. WHAT IS 4G???<br />Faster and more reliable – 100 Mbps<br /> Lower cost than previous generations.<br /> Multi-standard wireless system<br /> - Bluetooth , Wifi<br />Coverage of wide area.<br /> Wide Variety of services capability.<br /> Ad Hoc networking<br /> IPv6 core<br /> Potentially IEEE standards 802.11<br /> Only packet switching used unlike previous generations.<br /> OFDMA(Orthogonal Frequency Division Multiple access)<br /> and MIMO(Multiple In Multiple Out) replace CDMA <br /> spread spectrum radio technology.<br />
  34. 34. WHY 4G ???<br />Higher bandwidth enables a range of new applications!<br />For the customer<br />Video streaming , TV broadcast<br /> Video calls , video clips- news , music , sports<br /> Enhanced gaming , chat , location services…<br />For Business<br />High speed Tele-working / VPN access<br /> Sales force automation<br /> Video conferencing<br /> Real-time financial information <br />
  35. 35. 3G VS 4G<br />
  36. 36. ADVANTAGES OF 4G<br />High usability: anytime, anywhere and with any <br /> technology.<br /> Support for multimedia services at low transmission cost.<br /> Higher bandwidth , tight network security.<br />DISADVANTAGES OF 4G<br />The equipment required to implement a next generation<br /> network is still very expensive.<br /> Carriers and providers have to plan carefully to make sure<br /> that expenses are kept realistic.<br />
  37. 37. 4G SERVICES IN ASIA<br />CDMA (1XEV-DO)<br />Korea: SKT, KTF<br />Japan:AV(KDDI)<br />WCDMA / UMTS<br />Japan: NTT DoCoMo, Vodafone KK<br />Australia:3Hutchinson<br />Hongkong:3Hutchinson<br />
  38. 38. Estimation of Global Wireless Subscriber growth<br />
  39. 39. THANK YOU<br />CS-VI th B<br />Ankush Goyal<br />NIET<br />