By: Hui Hua Shen

100655607

April 8th, 2011

Cell Phone System Technologies

CDMAGSMCDMA vs GSMGenerationsConclusionReferences

Table of Contents

i

Stands for Code Division Multiple Access

digital cellular technology

uses spread-spectrum techniques

better capacity for voice and data communications

allowing more subscribers

common platform on which 3G technologies are built 1

CDMA

ii

• Global System for Mobile Communications

• First launched in Finland in 1991

• Narrowband TDMA ( time division multiple access)

• Most widely used 2

GSM

iii

• second-generation (2G) and third-generation (3G) 

• “spread-spectrum” technique

• 800-MHz and 1.9-GHz

• Telus/Bell/Public Mobile 3

CDMA vs GSM• Second-generation (2G)

• Digital technology

• 900 MHz or 1800 MHz• Rogers/Fido/Wind 3

iv

• 0G – Pre-mobile phones

• 1G – First Generation

• 2G – Second Generation

• 3G – Third Generation

• 4G – Fourth Generation

Generations

v

• Radio telephone (in cars)

• Autoradiopuhelin (ARP) launched in 1971 in Finland

4&5

0G – Pre-mobile Phones

vi

Released in the early 1980s

Analog cellphone standards

* NMT (Nordic Mobile Telephone)

Eastern Europe & Russia

* AMPS (Advanced Mobile Phone System)

United States 4 & 5

1G – First Generation

vii

Launch in 1991 in Finland

Digital transmission

digital voice call itself

basic ancillary data (time & date)

SMS messaging

2G standards:

GSM (TDMA – based), from Europe but used worldwide

IDEN (TDMA – based), Nextel (United States) & Telus Mobility (Canada) 4 & 5

2G – Second Generation

viii

Launch in 2001 in Japan by NTT DoCoMo

Allows broadband-speed access to the internet and email

Video telephony

View television programs

4 & 5

3G – Third Generation

ix

First launched in 2008

a wireless access technology

- High-speed mobile wireless access (10 Mbits/s and up) Wi-fi

- Pervasive networks

connected to several wireless access technologies

(Wi-fi, UMTS, EDGE)

4 & 5

4G – Fourth Generation

x

• Cell phone becomes the most important communication devices in our life.

• Most people can not live without cell phones.

• There are different features and functions for all cell phone generations.

Conclusion

1. http://www.webopedia.com/TERM/C/CDMA.html

2. http://www.webopedia.com/TERM/G/GSM.html

3. http://www.cellphones.ca/cell-plans/carriers/

4. http://funsms.net/mobile_phone_generations.htm

5. http://www.actewagl.com.au/education/communications/MobilePhones/DevelopmentOfMobiles/MobileGenerations.aspx

Images:

i. http://farm1.static.flickr.com/49/118885175_bcf6c34125_o.jpg

ii. http://www.cellular.co.za/cdma.htm

iii. http://androidheadlines.com/wp-content/uploads/2010/11/gsmmapworldtimezone-600x293.gif

iv. http://www.learntelecom.com/telephony/gsm/gsm-vs-cdma

v. http://www.w-cellphones.com/wp-content/uploads/2010/04/timeline-of-cell-phones.gif

vi. http://www.actewagl.com.au/education/_lib/images/Communications/MobilePhones/Mobile05%20-%20First%20radio%20telephone%201924.jpg

vii. http://www.geekosystem.com/wp-content/uploads/2010/03/20090522175136558-220x308.jpg

viii. http://static02.mediaite.com/geekosystem/uploads/2010/03/nokia3310.jpeg

ix. http://3.bp.blogspot.com/_0arosa8qIkc/SakNlSamqTI/AAAAAAAADq8/GHrKbywrwGc/s400/mobile-phones.jpg

x. http://www.worldphoto360.com/wp-content/uploads/2010/07/cell-phone_deals.jpg

References

Thank you!

Are there any questions?