MOBILE TELEPHONY Mobile Telephony
Mobile Telephony
MOBILE TELEPHONY
Mobile Telephony
OVEVIEW
Introduction to Mobile Telephony. 0G. MTS. Analog cellular network – 1G. Digital cellular network – 2G. Mobile Broadband Data – 3G. Native IP networks – 4G. 5G Technology.
Mobile Telephony
Introduction to Mobile telephone
From starting... Became available from some telephone companies
in the 1940s. Devices were bulky & consumed high power. Network supported only a few simultaneously
conversations. Modern cellular networks allow automatic &
pervasive use of mobile phones for voice & data communications.
Mobile Telephony
Contd…
Advances in mobile telephony can be traced in successive generations i.e.
Early services – 0G Analog cellular network – 1G Digital cellular network – 2G Mobile broadband data – 3G Native IP networks – 4G 5G Mobile Technology
Mobile Telephony
0G
MTS AT & T introduced Mobile Technology Service
(MTS) to 100 towns & highway corridors by 1948. Calls were setup manually by an operator & the
user had to depress a button on the handset to talk & release the button to listen.
Subscriber growth & revenue growth were hampered by the constraints of the technology.
Mobile Telephony
MTS
Then to overcome the constraints of MTS,
IMTS ( Improved Mobile Telephone Service) was introduced.
Allowing more calls in a given geographical area.
Introduced customer dialing. Reduced the size & weight.
Mobile Telephony
Then came the concept of Cellular networks where mobile phone had to stay within the coverage area serviced by one base station throughout the phone calls.
Mobile Telephony
Analog cellular networks – 1G
Developed in 1980s & completed in early 1990s.
Introduced in the UK by Vodafone UK Technology (and Italy)
Total Access Cellular System (TACS) This was based on the American design of AMPS
Used the 900MHz frequency range.
Mobile Telephony
Analog cellular networks – 1G
Speed upto 2.4 Kbps.AMPS first launched by US & a 1G mobile
system.Allows users to make voice calls in 1 country.
Mobile Telephony
Analog cellular networks – 1G
Mobile Telephony
Digital cellular network – 2G
Fielded in the late 1980s & finished in late 1990s.
Speeded upto 64Kbps. Digital handsets that are used today. Voice transmission with digital signal. Introduced a new variant of communication
called SMS or text message.
Mobile Telephony
Digital cellular network – 2G
Mobile Telephony
Mobile Broadband Data – 3G
Speeds from 125Kbps-2Mbps. Performance in computer networking
(WCDMA,WLAN Bluetooth) & mobile devices area (sellphone & GPS)
Data sent through packet switching technology.
Voice calls interpreted using circuit switching.
Mobile Telephony
Mobile Broadband Data – 3G
Access to Global Roaming & clarity in voice calls.
Fast communication ,Internet ,Mobile T.V, video conferencing, video calls (MMS) ,3D gaming etc.
Mobile Telephony
Mobile Broadband Data – 3G
Mobile Telephony
Native IP networks – 4G
Ultra-low latency for time-sensitive traffic.
Easily manage mixed traffic or TDM to all IP migration.
Availability and reliability. Eliminate or reduce recurring costs.
Mobile Telephony
Native IP networks – 4G
Add services, increase revenue. Expand footprint, extend reach, scale
network . Easy remote bandwidth expansion, and
robust Quality of Service.
Mobile Telephony
Native IP networks – 4G
Mobile Telephony
5G Technology
Changed the means to use cellphones within very high bandwidth.
Includes all type of advanced features which makes it more powerful & in huge demand in near future.
Can be hook with laptop to get broadband internet access.
Mobile Telephony
5G Technology
Including every functions which the previous generations have with advance features and capacity.
High resolution ,bi-directional large bandwidth shaping.
More attractive & effective.
Mobile Telephony
5G Technology
Provides large broadcasting of data in Gigabit which support almost 65,000 connections.
Provides 25 Mbps connectivity speed. Support virtual private networks. High speed, high capacity, and low cost per
bit. 5G - a promising Generation of wireless
communication that will change people’s lives.
Mobile Telephony
5G Technology