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LTE Evolution and Architecture
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LTE Evolution and Architecture
LTE Evolution and Architecture
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1
Question
What does LTE stand for?
Answer
Long Term Evolution
2
Question
When did 3GPP start work on 3G cellular evolution?
Answer
November 2004 in Toronto, Canada
3
Question
Which 3GPP release includes basic LTE specifications?
Answer
Release 8
4
Question
What family does LTE belong to?
Answer
UMTS (3GPP) standards
5
Question
What switching method is no longer used in LTE?
Answer
Circuit switching
6
Question
What higher data rates does LTE provide compared to previous generations?
Answer
Improved peak data rates
7
Question
What maximum mobility speed does LTE support?
Answer
Up to 350 km/h
8
Question
What is the average latency in LTE?
Answer
20 ms, down to under 5 ms optimally
9
Question
What was the average latency in UMTS networks?
Answer
300 ms
10
Question
How does LTE reduce cost per bit?
Answer
Through efficient spectrum use and architecture
11
Question
What architecture feature simplifies LTE?
Answer
Simplified architecture with open interfaces
12
Question
How many more users per cell does LTE support?
Answer
More users due to efficient resource allocation
13
Question
Is LTE backward compatible with previous standards?
Answer
Yes, compatible with earlier norms
14
Question
What cost and experience benefits do LTE services offer?
Answer
More services at lower cost with better user experience
15
Question
What type of network is LTE?
Answer
Full IP network
16
Question
What advantage does a full IP network provide for internet interconnection?
Answer
Simple interconnection with existing internet services
17
Question
What voice service does LTE propose?
Answer
Voice over IP (VoIP)
18
Question
What is MBMS in LTE?
Answer
Multimedia Broadcast Multicast Service
19
Question
What does MBMS compete with?
Answer
Mobile TNT (terrestrial digital TV)
20
Question
Why is MBMS advantageous for LTE?
Answer
Uses existing LTE network without specific development
21
Question
What are the main chapters in the module organization?
Answer
1: 2G/3G, 2: 4G, 3: Cellular Network Engineering, 4: 5G
22
Question
Where are TD exercises included?
Answer
In the slides
23
Question
What are the objectives of understanding LTE evolution?
Answer
Grasp logic of evolution to LTE
24
Question
What architecture aspect to understand in LTE?
Answer
LTE architecture
25
Question
What access techniques to understand in LTE?
Answer
OFDM and OFDMA
26
Question
What is the plan for Chapter 2 on 4G?
Answer
1: Evolution to LTE, 2: LTE Architecture, 3: OFDMA Access, 4: LTE Advanced, 5: QoS Management in LTE
27
Question
What improvements does LTE offer over 3G?
Answer
Higher data rates, higher mobility, lower latency, reduced cost per bit
28
Question
What simplified architecture does LTE use?
Answer
EPC and E-UTRAN
29
Question
What is EPC in LTE?
Answer
Evolved Packet Core
30
Question
What does MME stand for in EPC?
Answer
Mobility Management Entity