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10 WCDMA interview questions and answers

This page covers WCDMA questionnaire set prepared by experienced specialists in WCDMA domain. These top 10 WCDMA interview questions and answers help engineers seeking WCDMA/UMTS job to crack the interview at initial attempt.These questions are very useful as viva questions also.

1. What is CDMA? Explain different versions as per 3GPP releases.

2. What is the basic difference between CDMA and GSM?

3. Differentiate CDMA technique with respect to TDMA and FDMA.

4. What is the difference between EV-DO and EV-DV?

5. What is spread spectrum?

6. What is compressed mode in WCDMA?

7. What is the difference between QPSK and OQPSK?

8. Explain WCDMA frame structure.

9. What are the physical, transport and logical channels in WCDMA? Explain function of each.

10. What is the function of channelization code, scrambling code and synchronization code?

11. What is the difference between DSSS and FHSS?

WCDMA logical channels transport channels physical channels mapping

Refer UMTS Tutotial➤ for more information.



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