what is cdma technology?
What was it's origin ?
How it works?
How it is different from gsm?
Answers were Sorted based on User's Feedback
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.
Is This Answer Correct ? | 24 Yes | 6 No |
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
Is This Answer Correct ? | 13 Yes | 3 No |
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.
Is This Answer Correct ? | 1 Yes | 0 No |
Explain access channels?
What is tdd and what are the frequencies it uses?
Is entity a table?
Explain about sync. Channel in cdma system?
Explain the difference between cdma and tdma?
Should every class implement an interface?
What is forward channels in cdma?
What are the advantages of tdma?
Do you know for cdma, which is the weaker link: fwd or reverse? Why?
What is high speed packet access?
Explain the cdma capacity?
Explain dect?