ppt on 4g technology
TRANSCRIPT
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By: Ajit Rathee 2k7-MRCE-ECE-069
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1G 2G 3G 4G
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AMPS(Advanced Mobile Phone System)
TACS(Total Access Communication System)
ETACS(Extended Total Access Communication System)
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Digitized not only the control link but also voice signal
The new system provided better quality and higher capacity at lower cost to consumers
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GSM(Global System For Mobile Communication)
CDMA(Code Division Multiple Access)
TDMA(Time Division Multiple Access)
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These promise faster communication services ,including voice, fax and internet,anytime and anywhere with seamless global roaming.
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3G is not very cheap but it is worthwhile for the users who need connectivity on the move.
Since 3G is a packet based technology therefore user is charged for amount of data transferred.
3G network is available on the move, unlike wi-fi, which is limited to only a few meters.
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The IP address is based on IPv6.
IPv4: X . X . X . X (32 bits)
example: 216.37.129.9
IPv6:4 × IPv4 (128 bits)
example: 216.37.129.9 , 79.23.178.229 , 65.198.2.10 ,
192.168.5.120
home address
care-of address
mobile IP address
local network address
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HAPS
Services
Content
GSM
UMTS
WLAN
Bluetooth
Satellite
Wireline or WirelessNetworks(Internet)
Very wide area
Wide areaMetropolitan
areaLocal area
Personal area
Direct SequenceFrequency Hopping
WCDMATD-
CDMA
TDMAFDD
OFDMTDD
OFDMUnspecifi
ed
ADSLHome Add.
Mobile IP Add.Care-of Add.
Care-of Add.
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4G networks are all-IP (Internet Protocol) based heterogeneous networks
This will allow users to:◦ Select any system at
any time and any where
◦ Use Multiple systems at the same time (e.g. GPS and WLANs and CDMA)
A wide range of applications using only one 4G integrated terminal
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Support interactive multimedia services: teleconferencing, wireless Internet, etc.
Wider bandwidths, higher bit rates.
Global mobility and service portability.
Low cost.
Scalability of mobile networks (>10 times the capacity of 3G).
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A single physical terminal with multiple interfaces to access the different wireless networks
Advantages: Improve call completion Expand coverage area Reliable coverage in case
of network, link or switch failure
Disadvantages: Complexity in the
hardware of the device Handoff Mechanism:
Performed by the user, device or network
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3G (including 2.5G) 4G
Major Requirement Driving Architecture
Predominantly voice driven - data was always add on
Converged data and voice over IP
Network Architecture Wide area cell-based Hybrid - Integration of Wireless LAN (WiFi, Bluetooth) and wide area
Speeds 384 Kbps to 2 Mbps 20 to 100 Mbps in mobile mode
Frequency Band Dependent on country or continent (1800-2400 MHz)
Higher frequency bands (2-8 GHz)
Bandwidth 5-20 MHz 100 MHz (or more)
Switching Design Basis Circuit and Packet All digital with packetized voice
Access Technologies W-CDMA, 1xRTT, Edge OFDM and MC-CDMA (Multi Carrier CDMA)
Forward Error Correction Convolution rate 1/2, 1/3 Concatenated coding scheme
Component Design Optimized antenna design, multi-band adapters
multi-band adapters Smarter Antennas, software multiband and wideband radios
IP A number of air link protocols, including IP 5.0
All IP (IP6.0)
From : www.mobileinfo.com
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THANK YOU
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QUERIES?