5G Wireless Standard Design Nptel Week 2 Answers
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5G Wireless Standard Design Nptel Week 2 Answers (July-Dec 2025)
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Question 1. The number of slots per subframe in a 5G system that has a sub-carrier spacing of 30kHz.
a) 1
b) 2
c) 4
d) 8
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Question 2. Which protocol layer is responsible for coding and modulation in 5G NR?
a) Packet Data Convergence Protocol (PDCP)
b) Physical Layer (PHY)
c) Radio-Link Control (RLC)
d) Medium-Access Control (MAC)
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Question 3. Calculate the CRC for a 16-bit transport block “1101011010111110″ if the generator polynomial is D⁴+D²+1.
a) 0101
b) 1101
c) 1111
d) 1010
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Question 4. What is the best approach to maintain a link when UE experiences sudden drop in SNR?
a) Decrease the code-rate
b) Increase the code rate
c) Modify CRC polynomial with same degree as before
d) Increase transport block CRC length
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Question 5. In a 5G system if transport block size of the PDSCH signal is 17192 bits then calculate the code block size for the given transport block length.
a) 8466
b) 8428
c) 8440
d) 8458
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Question 6. In 5G transceiver chain which functional block removes the NULL bits:
a) CRC Addition
b) Code Block Segmentation
c) LDPC Decoding
d) Rate Matching
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Question 7. Which one of the following scheduling algorithm is greedy:
a) Round Robin multi-user scheduler
b) Proportional Fair multi-user scheduler
c) Random Resource multi-user scheduler
d) Max Rate multi-user scheduler
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Question 8. Which functional block in the 5G transceiver chain is designed to mitigate burst errors?
a) Interleaver
b) LDPC Coding
c) Rate Matching
d) Scrambler
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These are 5G Wireless Standard Design Nptel Week 2 Answers
