【Answer】
1.eMBB (enhanced Mobile BroadBand), URLLC (Ultra-Reliable Low-Latency Communications), and mMTC (massive Machine Type Communications).
2.ACD
3.When the SCS is 60 kHz, Extended CP can also be used, when the time slot length is 12 symbols. Or Yes
4.C
5.ABCD
【Winner】Laiheang, BAZ, DKetrari, MahMush, Orphee
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Hello, everyone!
Join the Community Learning week IT class!
IT class learning time of this phase: May 10th – May 15th.
Answer time of this class: May 14th, 2 AM - May 15th, 10 AM (UTC+0).
Class topic
Post 1. [Into 5G] 5G Time Domain Resources-1
The time and frequency resources of the 5G system are similar to those of LTE, including the time and frequency domains. 3GPP has redesigned the time and frequency resources of the air interface on the basis of LTE when developing the 5G protocol so that the network capacity of 5G can meet the system design goals and the QoS requirements of various services in the system while taking into account the smooth evolution from LTE to 5G. .…(more)
Post 2. [Into 5G] 5G Frequency Domain Resources-1
In the field of wireless communication, spectrum is always a scarce resource. Generally speaking, the low-frequency spectrum is a high-quality resource, but because of its small bandwidth, it was quickly occupied by various communication systems in previous generations..…(more)
Post 3. [Into 5G] 5G Time Domain Resources-2
The article details the composition of OFDM symbols and CP symbols in 5G NR and introduces the 5G NR time slot types and formats. .(more)
Post 4. [Into 5G] 5G Frequency Domain Resources-2
The article details the composition of OFDM symbols and CP symbols in 5G NR, and introduces the 5G NR time slot types and formats.… (more)
Post 5. 5G NR system CSI-RS signal
The article details the CSI-RS signal in 5G NR, and the role of CSI-RS signal but recognized in the signal transmission process. Introduction of CSI-RS signal types..… (more)
Class Q&As
After attending this class, please answer the following questions and comment with the answers below this post.
1. (Fill-in-the-blank) What are the three main types of services defined in the 3GPP protocol for 5G systems?
________________________________.
2. (Multiple-Answer Question) 5G NR defines the duplex modes of the frequency band into which categories?
A. FDD
B. SDD
C. TDD
D. SUL
3. (Fill-in-the-blank) Can I use extended CP when the SCS is 60 kHz and the time slot length is 12 symbols?
________________________________.
4. (Single-Answer Question)The size of Channel Raster in LTE regulations is?
A. 10KHz
B. 50KHz
C. 100KHz
D. 150KHz
5. (Multiple-Answer Question) What does the CSI report on content, i.e., the actual content transmitted on the RE, include?
A. CRI: CSI-RS Resource Indicator
B. lRI: Rank Indicator
C. PMI: Precoding Matrix Indicator.
D. CQI: Channel Quality Indicator
Hope you get good grades, come on! 
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