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5G retains four LTE carrier bandwidths, 3M, 5M, 10M, 15M, and 20M, mainly to facilitate the evolution of LTE to 5G in the future. (True or False, 2 points)

A.

True

B.

False

Which of the following URLLS statements are correct? _MC

A.

URLLS mainly considers the requirements on network delay.

B.

URLLC service require a delay of less than 10 ms.

C.

The typical application scenario of URLLS include automated driving. ,drones ,and telemedicine.

D.

In mid-2018, 3GPP release 15 completed the URLLS basic version by the end of 2019, the

completed version of 3GPP release 16 was provided

Which of the following features is not a key feature to reduce the latency of end-to-end services? (Multiple choice, 2 points)

A.

User face sinking

B.

OFDM

C.

Shorten scheduling delay

D.

Add SDAP protocol

Which of the following frequency bands is the 5G spectrum acquired by China Telecom? (single-choice question, 2 points)

A.

3500MHz-3600MHz

B.

3400MHz-3500MHz

C.

2515MHz-2675MHz

D.

4800MHz-4900MHz

Which of the following are the challenges of 5G O&M? (Multiple choice, 10 points)

A.

Complex network, OPEX keeps rising

B.

Problems caused by business simplification

C.

Business Diversity Brings Management Complexity

D.

The frequency band is single, and the network is relatively simple

Which of the following are the reasons why 5G uses C-Band as the main frequency band? (Multiple choice, 2 points)

A.

Although the coverage effect of intermediate frequency is worse than that of low frequency, combined with CRS FREE and mMIMO, the downlink coverage is not a problem

B.

There is a big gap between the uplink coverage of 3.5GHz band and 1.8G

C.

The low frequency is occupied more, and the idle spectrum is very fragmented

D.

Limited mmWave coverage

What is the maximum throughput provide by 5G in the eMBB application scenario in

IMT-2020 vision?

A.

10Gbps .

B.

100Mbps

C.

1Gbps

D.

100Gbps

Which of the following multiple access technologies is newly proposed by 5G? (single-choice question, 2 points)

A.

SCMA

B.

FDMA

C.

TDMA

D.

CDMA

Which of following V2X service statements is incorrect?

A.

centralized deployment …

B.

third-party algorithm deployment framework

C.

centimeter level positioning

D.

capable of evolution to cooperative automated driving

The millimeter wave frequency band is the most mature frequency band in the 5G industry chain, and will become the main working frequency band of 5G in the future. (True or False, 6 points)

A.

True

B.

False