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Q.

What is the difference between GSM and CDMA ?

Tags: cdma, difference between gsm
Asked by Binesh Balan, 20 Oct '07 10:22 am
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Answers (6)

 
1.

Hi Binesh,

GSM stands for Global System for Mobile technology. It is a technology commonly used in Mobile Phone networks. In India, it is the standard used by most operators such as AirTel, Hutch, Aircel and BSNL.

The competing standard, CDMA (short for Code Division Multiple Access) is used by operators such as Reliance Mobile and Tata Indicom, though I read in today's Business Line that Reliance now has paid for entry into GPRS. CDMA was developed by Qualcomm of the US.

Since, compared to GSM, CDMA is a newer technology, allows for faster data transfers, and uses less energy (more battery life!), GSM operators tried to compensate with better technologies such as GPRS (General Packet Radio Service) and EDGE (Enhanced Data rates for GSM Evolution).

There are more technical differences, but I just provided differences from a practical point of view.

I hope this answered your question!
Answered by Karthik Ramamurthy, 20 Oct '07 02:50 pm

 
  
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2.

Its quite a technical difference and its about the way technology is used for mobile telecommunications,i don't know how much u are comfortable with technical terms,but its in itself is huge topic to know both technologies have pro and cons and none is clear winner,i think u better google it and find out the answer urself according to ur understanding level ...i might go real techie on this as i don't want to go crude saying one has sim card and other don't and stuff like that
Answered by stupidme, 20 Oct '07 10:48 am

 
  
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3.

Gsm is GLOBAL SYSTEM FOR MOBILE TECHNOLOGY & cdma is CODE DIVISION MULTIPLE ACCESS
Answered by Nitin K Singh, 07 Jul '08 10:52 pm

 
  
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4.

GSM: Global System for Mobile communications is the most popular standard for mobile phones in the world.

CDMA: Code division multiple access (CDMA) describes a communication channel access principle that employs spread-spectrum technology and a special coding scheme (where each transmitter is assigned a code).

In India we use both systems. Infact, now we have phones with dual systems namely, CDMA and GSM.
Answered by Mark Fernandez, 20 Oct '07 10:51 am

 
  
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5.

GSM is - Global System for Mobile Communications - The standard digital cellular phone service of Europe, Japan, Australia and elsewhere.

CDMA is - Code Division Multiple Access. A spread spectrum air interface technology used in some digital cellular, personal communications services and other wireless networks.
Answered by Krishnakumar G. Nair, 20 Oct '07 04:27 pm

 
  
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6.

GSM stands for Global System for Mobile communication. the cell searches the network and in simple words, a SIM card is put into the cell to make it work. whereas CDMS stands for Code Division Multiple Access. it runs on a special coding system where each transmmitter is assigned a code. it is like a personalized network. in india, BSNL, Airtel, Hutch etc are operates on GSM network and Reliance, Tata Indicom are on CDMA
Answered by shahid gouri, 20 Oct '07 11:01 am

 
  
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