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4G
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WHAT IS 4G? IMT-Advanced MAGIC Mobile multimedia, Anytime
anywhere, Global mobility support, Integrated
wireless solution, and Customized personalservice
Aims at replacing the current technology withsingle, converged
packet based universal
technology Ensures high data rates, high quality and
reliability.
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WHY 4G? Difficulty of CDMA to provide higher data rates Need for
continuously increasing data rate and
bandwidth to meet the multimedia requirements
Inability to roam between different services
Better services at low cost
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EVOLUTION
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4G
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4G
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4G
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Generations Timeline
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4G Provides Mobility & Capacity4G
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4G
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4G
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4G
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4G
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FEATURES SEAMLESS INTEGRATION
HIGH USABILITY AND GLOBAL ROAMING
MULTIMEDIA SUPPORT PERSONALISATION
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SEAMLESS INTEGRATION
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HIGH USABILITY AND GLOBAL
ROAMING
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CHALLENGES
MOBILE STATION Multimode User Terminals
Wireless System Discovery
Wireless System Selection
SYSTEM
Terminal Mobility
Network Infrastructure and QoS Support
Security
Fault Tolerance and Survivability
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SERVICE
Multi-operators and Billing systems
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ARCHITECTURES Multimode devices
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.. Overlay network
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.. Common access protocol
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HAND OFF MECHANISMS
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Mobile IPv6
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.. Hierarchical Mobile IPv6
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TECHNOLOGIES MC-CDMA SMART ANTENNA
OFDM-MIMO
SOFTWARE DEFINED RADIO
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..
MC-CDMA
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Smart Antenna
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COMPARISON3G 4GMajor Requirement Driving Architecture
Predominantly voice driven - data was
always add onConverged data and voice over IP
Network Architecture Wide area cell-basedHybrid - Integration of
Wireless LAN ,Wi-Fi,
Bluetooth and wide area
Speeds 384 Kbps to 2 Mbps 20 to 100 Mbps in mobile mode
Frequency BandDependent 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, EDGE OFDM and MC-CDMA
Component DesignOptimized antenna design, multi-band
adapters
Smarter Antennas, software multiband and
wideband radios
IPA number of air link protocols, including IP
5.0All IP (IP6.0)
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APPLICATIONSVirtual Presence
Virtual navigation
Tele-Medicine
Tele-Geoprocessing applications
Crisis management
Education
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THANK YOU
