This document provides information on cellular network generations and compares 3G and 4G networks. It discusses: 1. Cellular network generations including 0G, 1G, 2G, 3G, 3.5G, and 4G. 4G networks promise faster data transfer rates and are optimized for all-IP traffic. 2. The advantages of LTE which is the technology behind 4G networks, including faster speeds, improved RF efficiency, and support for MIMO. 3. The key differences between 3G and 4G networks are speeds, with 4G aiming for speeds over 100Mbps, support for different frequency bands and technologies like OFDM and concatenated coding.

1. Management Information
System
 Group members :-
• MANE:- Roll. No. Enrollment no
• Vyas Bhumit (120) 137680592160
• Voraliya Nishit (119) 137680592159
• Prajapati Dipesh (100) 137680592107
• Panchamiya Yesh (90) 137680592085
• Khankhala Nitesh (83) 137680592060

2. Difference Between 3G & 4G
Cellular Network Generations

3. Flowof Presentation
• Introduction
• Cellular Network & Generations
• 4G
• Advantages of LTE
• Major LET Radio Technologies
• Measurement Steps
• Background difference between 3G & 4G
• Conclusion

4. Introductionof Cellular Network
• Base stations transmit to and receive from mobiles at the
assigned spectrum
• Multiple base stations use the same spectrum (spectral reuse)
• The service area of each base station is called a cell
• Each mobile terminal is typically served by the ‘closest’
base stations
• Handoff when terminals move

6. Cellular Network
Generations
• It is useful to think of cellular Network/telephony in
terms of generations:
• 0G: Briefcase-size mobile radio telephones
• 1G: Analog cellular telephony
• 2G: Digital cellular telephony
• 3G: High-speed digital cellular telephony (including video
telephony)
• 3.5G: Not an officially recognized standard by the ITU. It is
an interim or evolutionary step to the next
generation of cellular technology that will be
known as IMT-Advanced according to definitions
by the ITU.
• 4G: IP-based “anytime, anywhere” voice, data, and
multimedia telephony at faster data rates than 3G

7. 4G “anytime, anywhere”
• 4G (LTE)
• LTE stands for Long Term Evolution
• Next Generation mobile broadband technology
• Promises data transfer rates of 100 Mbps
• Based on UMTS 3G technology
• Optimized for All-IP traffic

8. Advantages of LTE

9. Comparison of LTE Speed

10. Major LTE Radio Technologies
• Uses Orthogonal Frequency Division Multiplexing (OFDM) for
downlink
• Uses Single Carrier Frequency Division Multiple Access
(SC(single carrier )-FDMA) for uplink
• Uses Multi-input Multi-output(MIMO) for enhanced
throughput
• Higher RF power amplifier efficiency (less battery power used
by handsets)

11. Context
11
Evolved hardware technologies
+
Improved network bandwidth
=
Entertainment apps on mobile

12. Context
When you are NOT mobile, you use(Wireless Fidelity )
12

13. Context
Millions of passengers per day!
13

14. Context
14
Can HSPA(High
Speed Packet
Access ) provide
the same level of
service to mobile
users on public
transport?
pictures’ source: Wikipedia
HSPA Node B
HSPA Node B

15. Measurement Setup
• Two Servers:
• Lab & Data Center
• Three types of evaluations:
• download only; upload only;
simultaneous download &
upload.
15

16. Background difference:
Between 3G & 4G
1. Network:-
3G technologies are in widespread use while 4G compliant
technologies are still in the horizon
2. 4G speeds are much faster compared to 3G:-
4G speeds are meant to exceed that of 3G. Current 3G speeds
are topped out at 14Mbps downlink and 5.8Mbps uplink. To be able
to qualify as a 4G technology, speeds of up to 100Mbps must be
reached for a moving user and 1Gbps for a stationary user

17. 3. Features and capabilities:-
Specifications 3G 4G
Frequency Band 1.8 – 2.5 GHz 2 – 8 GHz
Bandwidth 5-20 MHz 5-20 MHz
Data rate Up to 2Mbps 20 Mbps or more
Access Wideband
CDMA
Multi-carrier –
CDMA or
OFDM(TDMA)
FEC Turbo-codes Concatenated
codes
Switching Circuit/Packet Packet

18. Specifications 3G 4G
Data Throughput: Up to 3.1mbps 3to5mbps but
potential estimated
at a range of 10
to300 mbps.
Peak Upload Rate: 50 Mbit/s 50 Mbit/s
Peak Download
Rate:
100Mbit/s 1Gbit/s

19. Conclusion
• Mobility is a double edged sword
• Degrades HSPA services, e.g. throughput
• Improves fairness in bandwidth allocation among users and traffic
flows
• Communication characteristics in HSPA transitional regions are
very complicated
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