Presentation on 4G from my colleague

2. • INTRODUCTION
• WHAT IS 4G?
• EVOLUTION OF 4G
• EVOLUTION OF PROCESSORS AND DSP TECHNOLOGY
FOR 4G
• WHICH COUNTRIES HAVE 4G?
• INFRASTRUCTURE FOR 4G
• 4G EVOLUTION INTO CONVERGENCE
• WiMax
• WIRELINE BANDWIDTH DEMAND PROJECTION FOR NEXT
25 YEARS
• 4G IN INDIA?

3. • 4G, the successor of 3G, will soon
become the standard for cellular wireless
• The technology is currently available in
some countries but it is still being
perfected
• The aim is to achieve “ultra broadband
speed” – to be counted in gigabytes per
second

4. • ITU designed 4G in 2002 with the official
name “3G Long-Term Evolutions” or 3.9G
• Will allow users to download a full-length
feature film within five minutes
• Will also be able to stream high-definition
television and radio to hand-held devices
• The basic difference between 3G and 4G
is in data transfer and signal quality

5. • The highest download and upload speed in 3G
are 14 Mbps and 5.8 Mbps respectively
• In 4G the download speed is up to 100 Mbps
for moving users and 1 Gbps for stationary
users
• 4G is adoption of packet switching instead of
circuit switching in voice and video calls
• With packet switching, resources are only used
when there is information to be sent across
• 4G uses spiral multiplexing

6. • The first commercial deployment was by Telia
Sonera and NetCom
• Telia Sonera branded the network “4G”
• The modem devices on offer were
manufactured by Samsung (dongle GT-B3710)
• The network infrastructure were created by
Huawei (in Oslo) and Ericsson (in Stockholm)

8. • Except for the Scandinavian countries, a
few countries have started the 4G
commercially
• In the US, Sprint Nextel initiated the
service last year
• Countries expected to launch 4G by this
year are Germany, Spain, China, Japan
and England

9. • There are three primary technologies that
support 4G – WiMax, LTE, and UMB
• The main doubt is whether to implement
WiMax or LTE
• The advantages of LTE are:
(i) Faster speed with 100 Mbps for download
and 50 Mbps for upload
(ii) It makes CDMA and GSM database moot
(iii) It offers both FDD and TDD duplexing

11. • WiMax technology might not achieve the
required rate in a high-density area
• However, WiMax technology becomes
useful when it is bundled with IPTV
• The wireless bandwidth will be roughly
3Mbps/1.5Mbps; but this is nowhere near
the +100Mbps/50Mbps that LTE promises

13. • Has already begun the process of introducing
4G
• India is among the latecomers in 3G
• It is felt that by the time to implement 3G fully,
4G technologies such as LTE will be available
commercially
• It has taken three years for the government to
decide on 3G-spectrum auction policy
• 4G could face the same delay unless India
wants to catch up with the rest of the world