NPTEL 5G Wireless Standard Design Week 12 Assignment Answers 2024
1. Which of the following parameters will the UE consider while reporting the rank indicator (RI) back to gNB.
- Channel capacity
- Number of antennas at gNB
- The MCS in which the PDSCH is being transmitted by gNB
- The MCS in which the UE needs to transmit the PUSCH signal
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2. Which of the following statements are true regarding the FR1 MIMO system
- Users are multiplexed in frequency domain
- The entire slot should be allocated to a single user
- Orthogonality in time domain is achieved after taking IFFT
- Each transmitter chain will require 2 DACs, and one downconverter
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3. Which factors differ in the system architecture between FR1 and FR2 MIMO systems?
- The way in which different users are multiplexed
- Number of antennas required to build a robust system
- The way phase-shifting/ precoding is performed on the transmit symbols
- The way in which the high-phy processing like TB-CRC calculation, code block segmentation, Encoding etc are done
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4. Which of the following statements are true regarding the synchronization signals.
- Synchronization signals consists of PSS and SSS signals only
- Synchronization signal will help the UE to find the slot boundary and symbol boundary
- There PSS and SSS are used to calculate the system frame number
- The synchronization signals are user specific
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5. Which of the following statements regarding PSS signals are true?
- UE uses the frequency domain samples of the PSS sequence to perform synchronization
- Slot boundary is determined by correlating the PSS sequence with the received signal
- PSS is a 127 length sequence and there are about 336 different PSS sequences
- PSS and SSS signals are present in the same slot
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6. Which of the following statements are incorrect regarding the initial access?
- DL synchronization
- SRS based channel sounding
- CSI-RS based Rank Calculation
- UL synchronization
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7. After completing synchronization using the SS signal, the UE would have estimated
- Frequency offset
- Symbol and frame boundaries
- PDCCH CORESET information
- Rank of the channel
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8. Which of the following statements are true regarding the FR2 system?
- It supports the subcarrier spacing of 120kHz and 240kHz
- It can support a maximum bandwidth of 200MHz
- It operates in the mmWave frequency range of 24.25GHz to 52.6GHz
- Cell sizes of FR2 system is same as that of FR1 system
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