IT class - August 13th [Community Learning Week •Phase 5] Activity

【Answer】1. A    2. B    3. B    4. A    5. D

【Winner】Zebra,    scidox,    thibay,    Vien,    be_lo

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Hello, everyone!

Join the Community Learning week IT class! 

IT class learning time of this phase: August 9th – August 14th.

Answer time of this class: August 13th, 8 AM - August 14th, 4 PM (UTC+0).

Class topic

Post 1. [Introduction to 5G]5G security protection

Air interface encryption uses parameters that change regularly to convert sent data. When receiving data, the same parameters are used for inverse conversion to restore the data.  …(More)

Post 2. [Introduction to 5G]Differences between voice solutions in 5G NSA networking and SA networking

Among the current 5G network types, there are two types of networks, NSA (non-standalone) and SA (standalone), with different voice solutions for different network types....(More)

Post 3.[Introduction to 5G] 5G Network Slicing

5G network slicing is the use of network virtualization to divide single network connections into multiple distinct virtual connections that provide different amounts of resources to different types of traffic....(More)

Post 4. [Introduction to 5G]Difference between eNodeB and gNodeB

The base stations in 4G LTE networks are called evolved Node B or eNodeB. In network architecture diagrams, eNodeB is often also abbreviated as eNB. eNodeB is an essential part of the 4G LTE radio network and is capable of performing network control functions in addition to creating mobile network coverage. ….(More)

Post 5. [Introduction to 5G]5G NR system CSI-RS signal

Channel-State Information -Reference Signal channel state information, is very important for improving the overall performance of the wireless system.…(More)

Class Q&As

After attending this class, please answer the following questions and comment with the answers below this post.

Q1. (True or False) The input parameters of the air interface ciphering algorithm include the ciphering key, PDCP packet count, bearer ID, transmission direction, and length of the required keystream. 

A. True

B. False

Q2.  (Single-Answer Question) When 4G LTE network does not support VoLTE (IMS is not deployed), the voice service of 5G terminal will fall back to 2G or 3G network via (  ).

A.  SRVCC

B.  CSFB

C.  IMS

D.  GSM

Q3.  (Single-Answer Question) How many scenarios are divided in 5G network slicing?

A. 2

B. 3

C. 4

D. 5

Q4. (True or False) There are two ways in which 5G networks can be deployed; standalone mode and non-standalone mode.

A. True

B. False

Q5.(Single-Answer Question) The overall process of CSI reporting by the UE in the NR includes: the base station sends ( ) reference signals according to the configuration

A. CSI

B. PMI

C. CQI

D. CSI-RS

Hope you get good grades, come on! 

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