The document discusses the evolution of 4G cellular technology. 4G aims to achieve ultra-high broadband speeds measured in gigabits per second. It allows downloading a full-length movie within 5 minutes and streaming high-definition media to mobile devices. While some countries have started commercial 4G services using LTE or WiMax, India has yet to fully implement 3G and may face delays adopting 4G unless it acts quickly.
1 of 13
More Related Content
4 G Presentation
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