【原】5G(NR)基础知识问题20(英文版）

5G(NR)基础知识面(考)试一般采用中文版，但作为移动通信的原始语言--英文是基础；在中、高级工程师的考(试)评中英文试(题)卷往往也会占用一定比例；本文第二部分是5G(NR)基础知识问题20(英文版)-欢迎阅读；

一、5G面(考)试基础问题汇总

• 5G(NR)面试问题与答案之一
  
• 5G(NR)面试问题与答案之二
  
• 5G(NR)面试问题与答案之三
  
• 5G(NR)面试问题与答案之四
  
• 5G(NR)面试问题与答案之五
  
• 5G(NR)基础问题及解答
  
• 5G无线网有关RNTI面试问题
  
• 5G网络的PRACH及面试问题
  
• 5G随机接入序列及面试问题
  
• 5G(NR)接入流程相关面试问题
• 无线射频(RF)面试问题及答案
  
• 5G(NR)基本知识问答14题
  
• 5G(NR)基本知识面试问题(答案）
  
• 4G+5G技术测试题目(含答案）
  
• 4G+5G无线通信面试问题汇总
  
• 5G(NR)基础信令测试题(答案)
• 5G高级工程师面试应答题
  
• Mass MIMO相关问题及解答
  
• 网络工程师面试问题
• 5G(NR)无线网规&网优大考试(题）
  
• 学规范，看4G(LTE)技术演进--测试题目(答案)一

二、5G基础知识面试问题(英文--答案为绿色加粗)

Q1. What are the 5G Use Cases?

• eMBB
• URLLC
• mMTC
• All

Q2.The modulation schemes in NR are similar to LTE

• Yes
• No

Q3.In Dual Connectivity Scenario ENDC, LTE eNB acts as Master Node

• Yes
• No

Q4.CA stands for

• Cellular altitude
• Carrier aggregation
• Carrier agnostic

Q5. 5G mmWave Spectrum frequency Ranges

• 450 MHz – 6 GHz
• 24.25 GHz – 52.6 GHz
• 5 GHz - 10 GHz

Q6. In 5G Stand Alone (SA), No need for LTE network upgrades

• No
• Yes

Q7. Option 7x is considered as ...

• 5G NSA
• 5G SA

Q8. What is the maximum number of hybrid ARQ process possible in NR?

• 32
• 16
• 8

Q9. 5G gNB can be Splitted to RU,CU and DU

• No
• Yes

Q10. What is SS block?

• SS block is initial synchronization signal block.
• SS block is first block in the Uplink Transmission

Q11. What are the different RRC states in NR?

• RRC Idle and RRC Active
• RRC Idle, RRC Inactive and RRC Active
• RRC Inactive and RRC Active

Q12. In non-standalone mode, the mobile device uses 4G and 5G networks simultaneously

• Yes
• No

Q13. To optimize signal strength at the mobile device, NR uses a combination of analog and digital beamforming.

• Yes
• No

Q14. Bandwidth parts is a new concept in 5G?

• Yes
• No

Q15. In LTE-A Carrier Aggregation, a maximum of 5 CCs can be aggregated?

• Yes
• No

Q16. In 5G NSA, Existing LTE Connected mode used

• Yes
• No

Q17. 3GPP Initial release for 5G

• Release 14
• Release 15
• Release 16

Q18. One of gNB Functions in 5G is

• IP header compression, encryption and integrity protection of data.
• Access Authorization including check of roaming rights
• Uplink Traffic verification (SDF to QoS flow mapping).

Q19. The first phase of NR DL uses ...

• DFT-S-OFDM
• Cyclic Prefix—OFDM

Q20. One of AMF Functions in 5G is

• Uplink classifier to support routing traffic flows to a data network.
• The Access Stratum (AS) Security control
• Session Management