Ppt on 4G Technology
Transcript of Ppt on 4G Technology
By: Ajit Rathee 2k7-MRCE-ECE-069
1G 2G 3G 4G
AMPS(Advanced Mobile Phone System)
TACS(Total Access Communication System)
ETACS(Extended Total Access Communication System)
Digitized not only the control link but also voice signal
The new system provided better quality and higher capacity at lower cost to consumers
GSM(Global System For Mobile Communication)
CDMA(Code Division Multiple Access)
TDMA(Time Division Multiple Access)
These promise faster communication services ,including voice, fax and internet,anytime and anywhere with seamless global roaming.
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.
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
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.
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
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).
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
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
THANK YOU
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