3g wireless ppt


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What is 3G?



First Generation Wireless : Analog
Second Generation Wireless (2G): Digital
Second Generation Wireless + (2G+): More Data
Third Generation Wireless (3G):
Universal Global Wireless Voice and Data System
Worldwide Effort Toward 3G
International Standard Underway: IMT-2000


Comparison 2G vs. 3G Networks


Today’s Networks (“2G Networks”):
Circuit-switched Data or Limited Bandwidth Packet-switched Data
Separate Networks for Voice and Data
Third Generation Networks (“3G Networks”)
Improved Capacity on Radio Interface (Increased Number of Users Per Cell)
Improved Vocoder Technology (Lower Bit Rate Voice)
Packetized Voice and Data (More Efficient Use of Transport)
Single, Integrated Network (More Efficient Staffing for Provisioning and Maintenance)
Standard Interfaces (Takes Advantage of Competitive Hardware Pricing)
Capable of Supporting Higher Rate Data and Integrated Voice and Data Services (New Revenue Opportunities)
Transport (E.G., Routers, Switches, and Gateways) Are Separated From Service and Call Control Intelligence (Lower Cost of Transport Elements, Open Interfaces for Service Development Encourage Rich Service Offerings)



The 3G Vision


Global Seamless Roaming
Common Worldwide Spectrum
Multiple Radio Environments
Wide Range of Services -Voice & Data Equally
Flexible, Spectrum Efficient Technologies
Wireless - Wireline Integration
Enhanced Security and Performance
Wireline Services and Quality Levels
Rapid Introduction of New Technology


3G Vision - Interoperability


Legacy Systems
Interoperability Between Different Standards (E.G., ANSI-41, GSM Based Networks)
How Achieve Interoperability?
Goal: One Global Standard or “Family of Standards” World Wide: IMT - 2000
Phased Implementation