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Huawei H35-481_V2.0 Exam - Topic 1 Question 70 Discussion

Which of the following statements about NR subcarriers are incorrect?
A) The larger the subcarrier spacing, the larger the number of symbols. and B) The smaller the subcarrier spacing, the larger the CP length and the more suitable it becomes for wide coverage. and D) The larger the subcarrier spacing, the larger the slot length.
C) The smaller the subcarrier spacing, the lower the power spectral density.

Huawei H35-481_V2.0 Exam - Topic 1 Question 70 Discussion

Actual exam question for Huawei's H35-481_V2.0 exam
Question #: 70
Topic #: 1
[All H35-481_V2.0 Questions]

Which of the following statements about NR subcarriers are incorrect?

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Suggested Answer: A, B, D

The statement A is incorrect. The larger the subcarrier spacing [1], the shorter the symbol duration on each subcarrier, not the larger number of symbols. Statement B is also incorrect. The larger the subcarrier spacing [1], the larger the CP length and the more suitable it becomes for wide coverage. Statement C is correct. The smaller the subcarrier spacing, the lower the power spectral density. Statement D is incorrect. The larger the subcarrier spacing [1], the shorter the slot length.

1. A novel timing and frequency offset estimation algorithm for filtered ...

https://asp-eurasipjournals.springeropen.com/articles/10.1186/s13634-020-00696-1

Extended Cyclic Prefix - an overview | ScienceDirect Topics

https://www.sciencedirect.com/topics/engineering/extended-cyclic-prefix

5G NR Numerology - Subcarrier Spcaing (SCS) - Techplayon

http://www.techplayon.com/5g-nr-numerology-subcarrier-spcaing-scs/


by Garry at Jun 26, 2026, 05:29 AM

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Lindsey
3 days ago
B seems off too. Smaller spacing doesn't mean longer CP.
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Reena
8 days ago
Agreed, A doesn't make sense.
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Stefany
13 days ago
I think A is incorrect. More spacing means fewer symbols.
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Jeanice
19 days ago
D is also wrong, larger spacing actually shortens slot length.
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Karl
24 days ago
Wait, are we sure about C? Lower spacing means lower power density?
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Tuyet
29 days ago
B sounds right to me, smaller spacing helps with coverage.
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Justine
1 month ago
I agree with A, that one’s off.
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Ciara
1 month ago
A is definitely incorrect. More spacing means fewer symbols.
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Hayley
1 month ago
I remember that smaller subcarrier spacing can lead to higher power spectral density, so option C seems off to me.
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Celestina
2 months ago
I practiced a similar question where we had to identify incorrect statements about NR subcarriers, and I think option A might be wrong.
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Olen
2 months ago
I feel like we discussed something about CP length and subcarrier spacing in class, but I can't recall the exact relationship.
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Remona
2 months ago
I think I remember that larger subcarrier spacing actually means fewer symbols, but I'm not entirely sure.
upvoted 0 times
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