Cell Phone System Technologies<br />By:	Hui Hua Shen<br />	100655607<br />	April 8th, 2011<br />
Table of Contents<br /><ul><li>CDMA
GSM
CDMA vsGSM
Generations
Conclusion
References</li></ul>i<br />
CDMA<br />Stands for Code Division Multiple Access<br />digitalcellular technology<br />usesspread-spectrumtechniques<br /...
<ul><li>Global System for Mobile Communications
First launched in Finland in 1991
Narrowband TDMA ( time division multiple access)
Most widely used		2</li></ul>GSM<br />iii<br />
<ul><li>second-generation (2G) and third-generation (3G) 
“spread-spectrum” technique
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Cell phone system technologies

  1. 1. Cell Phone System Technologies<br />By: Hui Hua Shen<br /> 100655607<br /> April 8th, 2011<br />
  2. 2. Table of Contents<br /><ul><li>CDMA
  3. 3. GSM
  4. 4. CDMA vsGSM
  5. 5. Generations
  6. 6. Conclusion
  7. 7. References</li></ul>i<br />
  8. 8. CDMA<br />Stands for Code Division Multiple Access<br />digitalcellular technology<br />usesspread-spectrumtechniques<br />better capacity for voice and data communications<br />allowing more subscribers<br />common platform on which 3G technologies are built1<br />ii<br />
  9. 9. <ul><li>Global System for Mobile Communications
  10. 10. First launched in Finland in 1991
  11. 11. Narrowband TDMA ( time division multiple access)
  12. 12. Most widely used 2</li></ul>GSM<br />iii<br />
  13. 13. <ul><li>second-generation (2G) and third-generation (3G) 
  14. 14. “spread-spectrum” technique
  15. 15. 800-MHz and 1.9-GHz
  16. 16. Telus/Bell/Public Mobile 3</li></ul>CDMA vs GSM<br /><ul><li>Second-generation (2G)
  17. 17. Digital technology
  18. 18. 900 MHz or 1800 MHz
  19. 19. Rogers/Fido/Wind 3</li></ul>iv<br />
  20. 20. Generations<br /><ul><li>0G – Pre-mobile phones
  21. 21. 1G – First Generation
  22. 22. 2G – Second Generation
  23. 23. 3G – Third Generation
  24. 24. 4G – Fourth Generation</li></ul>v<br />
  25. 25. 0G – Pre-mobile Phones<br /><ul><li>Radio telephone (in cars)
  26. 26. Autoradiopuhelin (ARP) launched in 1971 in Finland</li></ul>4&5<br />vi<br />
  27. 27. 1G – First Generation<br />Released in the early 1980s<br />Analog cellphone standards<br />* NMT (Nordic Mobile Telephone)<br /> Eastern Europe & Russia<br />* AMPS (Advanced Mobile Phone System)<br /> United States4 & 5<br />vii<br />
  28. 28. Launch in 1991 in Finland<br />Digital transmission<br />digital voice call itself<br />basic ancillary data (time & date)<br />SMS messaging<br />2G standards:<br />GSM (TDMA – based), from Europe but used worldwide<br />IDEN (TDMA – based), Nextel (United States) & Telus Mobility (Canada)4 & 5<br />2G – Second Generation<br />viii<br />
  29. 29. 3G – Third Generation<br />Launch in 2001 in Japan by NTT DoCoMo<br /> Allows broadband-speed access to the internet and email<br /> Video telephony<br /> View television programs <br />4 & 5<br />ix<br />
  30. 30. First launched in 2008<br />a wireless access technology<br /> - High-speed mobile wireless access (10 Mbits/s and up) Wi-fi<br /> - Pervasive networks <br /> connected to several wireless access technologies<br /> (Wi-fi, UMTS, EDGE)<br />4 & 5<br />4G – Fourth Generation<br />x<br />
  31. 31. <ul><li>Cell phone becomes the most important communication devices in our life.
  32. 32. Most people can not live without cell phones.
  33. 33. There are different features and functions for all cell phone generations.</li></ul>Conclusion<br />
  34. 34. References<br />http://www.webopedia.com/TERM/C/CDMA.html<br />http://www.webopedia.com/TERM/G/GSM.html<br />http://www.cellphones.ca/cell-plans/carriers/<br />http://funsms.net/mobile_phone_generations.htm<br />http://www.actewagl.com.au/education/communications/MobilePhones/DevelopmentOfMobiles/MobileGenerations.aspx<br />Images:<br />http://farm1.static.flickr.com/49/118885175_bcf6c34125_o.jpg<br />http://www.cellular.co.za/cdma.htm<br />http://androidheadlines.com/wp-content/uploads/2010/11/gsmmapworldtimezone-600x293.gif<br />http://www.learntelecom.com/telephony/gsm/gsm-vs-cdma<br />http://www.w-cellphones.com/wp-content/uploads/2010/04/timeline-of-cell-phones.gif<br />http://www.actewagl.com.au/education/_lib/images/Communications/MobilePhones/Mobile05%20-%20First%20radio%20telephone%201924.jpg<br />http://www.geekosystem.com/wp-content/uploads/2010/03/20090522175136558-220x308.jpg<br />http://static02.mediaite.com/geekosystem/uploads/2010/03/nokia3310.jpeg<br />http://3.bp.blogspot.com/_0arosa8qIkc/SakNlSamqTI/AAAAAAAADq8/GHrKbywrwGc/s400/mobile-phones.jpg<br />http://www.worldphoto360.com/wp-content/uploads/2010/07/cell-phone_deals.jpg<br />
  35. 35. Thank you!<br />Are there any questions?<br />
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