what is cdma technology? What was it's origin ? How it works? How it is

what is cdma technology?
What was it's origin ?
How it works?
How it is different from gsm?

Question Posted / avancha

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what is cdma technology? What was it's origin ? How it works? How it is different from gsm? ..

Answer / manoj kumar kar

1>CDMA means Code Division Multiple access.
2>It was orginated at USA.
3>Each user is assigned a unique code and they can use the
entire bandwidth available.It is like Ten persons in a
meeting room are talking at the same time but with
different languages.
4>GSM is Global System For Mobile Communication.GSM uses
Time Division Multiple Access means Ten persons in a
meeting room and only speaks whenever their turn comes.

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what is cdma technology? What was it's origin ? How it works? How it is different from gsm? ..

Answer / vengalarao

1>cdma is code divison multiple access and narrow frequency
is converted into over wide band rf signal.
2>origination means call flow from BTS To MS
3>cdma is depended by codes each user is depended by code
4> GSM is depended by TDMA and FDMA but CDMA depended by
CDMA only

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what is cdma technology? What was it's origin ? How it works? How it is different from gsm? ..

Answer / abby

1> cdma stands for code division multiple access; its
frequency 800 mhz and 1900 mhz
2>channel bandwidth 12mhz with 1.25mhz for spread spectrum
3>in cdma we allocate a unique code to the user separately
and allocate the total bandwidth to the user.
4>in gsm we divide the bandwidth into many time slots and
allocate each time slot to the user.

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0 No

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