TRUE OR FALSE

1. To enhance the spectrum efficiency, massive MIMO technology is introduced in 5G

network, whose maximum number of antennas may reach 64T64R
True

2. Based on the massive MIMO beam forming capability, 5G base stations can better support
low-attitude coverage
True

3. C-band is the main frequency band of 5G. Currently, a maximum of 100 MHz bandwidth
can be deployed. Uplink and downlink imbalance can be resolved by the uplink and
downlink decoupling feature
True

4. Because of the high frequency band of millimeter wave, the penetration loss of it is very
small
False

5. The IEEE is responsible for 5G standardization, and formulates and releases 5G mobile
communication technical specifications and reports
False

6. In the Option 3x architecture, data is split on the gNodeB side, which has little impact on
the LTE eNodeB side
True

7. In IoV scenarios, the DSRC technology provides better coverage than C-V2X
False

8. The SA mode of 5G network favors aggressive operators on fast deployment of 5G services

based on 4G network
False

9. The 5G network features high rate, low latency, and massive connections, and can better
support vertical industry applications
True

10. 5G is a broadband communication system. Considering the variety of service scenarios,

plenty of terminal types are needed. For some service terminals who only require low data
rates, BWP technique may be used to lower the terminal’s cost and power consumption
True

11. The formal name of 5G is IMT-2020, which was defined by ITU-R

 True

12. C-V2X is a global standard communication technology specified by 3GPP, which includes
LTE-V2X and 5G-V2X
True

13. DSRC provides short-distance wireless tranmission technology based on IEEE802.16,

which is mainly used to vehicle-to-vehicle and vehicle-to-road communication
False

14. mMTC can be supported by both NSA and SA mode.

False

15. uRLLC cannot be supported by NSA mode

True

16. Sub6G Hz includes sub3G Hz and C-band

True

17. Considering the safety of automated driving service, it is required to control the latency of
mobile network on nano-second level.
False

18. The vertical industries have clear requirement on service isolation. This requirement can
be satisfied by network slicing technology.
True

19. For intelligent grid service, power transmission and power generation will be the main
application field for 5G.
False

SINGLE ANSWER
20. For eMBB scenario of 5G, the peak rate is required to reach
10 Gbps

21. Based on the vision defined by ITU on 5G, how many connections should be supported in
one square kilometer for mMTC scenario
1,000,000

22. In current eMBB scenario, what channel coding method is adopted on control channels of
5G air interface
Polar
23. In 5G system, spectrum utilization can be improved by using the F-OFDM technology.
When the SCS is 30 kHz, which system bandwidth is of the maximum spectrum utilization
?
100MHz

24. Which one of the following scenarios are the first batch of 5G network applications mainly
focused on ?
eMBB
25. Which of the following functions can be tailored for smart grid meter reading services ?
Mobility management
26. Which of the below frequency bands is the C-Band supported by 5G ?
3.5GHz

27. Which of the following is the mainstream frequency band of the C-V2X-based IoV
technology ?
5905-5915MHz

28. Which of the below statements about 5G NSA networking is incorrect ?

The UE signaling can be directly sent to the gNodeB

29. Which of the following statements about the causes of insufficient 5G uplink coverage is
incorrect ?
UE receiver sensitivity is poor

30. Which is the interface between CU and DU in 5G base stations ?

F1

31. 5G network can use high-order modulation to increase the air interface rate. Which of the
following statements about high-order modulation is incorrect ?
256QAM and massive MIMO cannot be used together

32. Which of the below key technologies of 5G can effectively support the precise load control
of intelligent grid?
Edge Computing

33. Which RAN structure will be separated into CU and DU two parts
Cloud RAN

34. Which of the following technologies can shorten the air interface latency?
Flexible Frame Structure

35. Which of the following statements about the 5G protocol standardization process is correct
?
 The 5G protocol is divided into two phases: Phase 1 and Phase 2, which correspond
to two protocol versions: R15 and R16

MULTIPLE ANSWER
36. Based on the developing trend, what new characteristics could 5G network have ?
Higher rate
Stronger network connectivity capability
Lower Latency

37. To realize the general vision on 5G, what application scenarios have been defined by ITU
?
eMBB
mMTC
uRLLC

38. What gains can be realized by massive MIMO of 5G

Beamforming
UL MU-MIMO
DL MU-MIMO
SU-MIMO

39. Which ones of the below techniques can be used to solve the uplink and downlink
imbalance problem of 5G radio network
Uplink and downlink decoupling (SUL)
Dual connection

40. Based on the ultra low latency fo 5G network, what new services can 5G support?
Remote health care
Automated driving
Intelligent manufacturing

41. Based on 5G network, what benefits can CloudVR bring comparing with the traditional PC
VR?
Effective control on copyright
Lowering the VR terminal cost
Better experience on mobility

42. Based on the C-V2X technology, multi-party collaboration among transportation

participants can be implemented to facilitate intelligent transportation. The C-V2X
includes
V2l V2V V2N V2P
43. For 5G network, what are the benefits of using a globally unified standard ?
Economies of Scale
Supporting global roaming
Reducing industry chain risks

44. Compared with 4G networks, which ones of the following services can be better supported
by 5G networks that support higher rates ?
Holographic Image Service
4K and 8K HD video
AR
VR

45. Which of the following are CloudRAN benefits ?

Unified, architecture, achieving multi-dimensional convergence of multiple RATs,
frequency bands, multi-layer networks, and ultra-dense networks
Open platform and intelligent O&M, promoting agile service rollout
Resource pooling, improving resource utilization and elastic network capacity
expansion
On-demand deployment, intelligent slicing, and adaptation to diverse services, such
as large bandwidth, short latency, and massive connections

46. With the rapid development of mobile services and the emergence of new services, what
are the challenges faced by mobile communications networks ?
Rapid growth of mobile data volume
Diversified service scenarios
The number of network connections keeps increasing

47. Which ones of the below 5G core network functions belong to control plane ?
PCF
SMF
AMF

48. In the future, the 5G-V2X technology can be used to enable high-level autonomous driving
applications. Which of the following are included ?
Remote driving
Advanced driving
Vehicle Platooning
Sensor information sharing

49. Which ones of the following statements about millimeter waves are incorrect ?
The available frequency resource is limited, most of which was occupied by current
systems
 The lower the frequency band is, the better the coverage is.

50. The typical valued application scenarios of remote driving in 5G includes

Campus shuttle bus
Port transportation
Mining area transportation in harsh environment
Vehicle resource scheduling

51. Why is 5G technology required for automated driving?

5G can provide lower latency
It is not restricted by the distance and environment
Promoting the evolution from single-vehicle intelligence to collaborative intellegence
Better interactive experience