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Overview Of 3G Mobile

Overview Of 3G Mobile. 3G AWARENESS. 3G is the next generation mobile communications systems. 3G is basically an ITU defined set of standards, which along with other specifications provides for minimum data speed of 384 kbps. It enhances the services such as Multimedia

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Overview Of 3G Mobile

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  1. Overview Of 3G Mobile

  2. 3G AWARENESS • 3G is the next generation mobile communications systems. • 3G is basically an ITU defined set of standards, which along with other specifications provides for minimum data speed of 384 kbps. • It enhances the services such as • Multimedia • High speed mobile Broadband • Internet Access • Ability to view video footage on your mobile handset.

  3. What is Third Generation? 1 Generation 2 Generation 3 Generation st nd rd Analog speech Digital speech + High data rates ) (384kbps - 14.4 Mbps) £ low - rate data ( 64 kbps + 2 nd gen. services NMT, AMPS, TACS GSM, PDC, UMTS/IMT - 2000 IS - 136, IS - 95 1980 2000 1990 24 - Apr - 09 2

  4. Spectrum for 3G Systems The IMT 2000 band has been identified in most of the countries for the launch of 3G services - Uplink - 1920 - 1980 MHz, Downlink - 2110 - 2170 MHz. 24 - Apr - 09 20

  5. Mobile Soft switch Solution Layered Architecture Application Layer Control Layer Connectivity Layer

  6. Application Layer:-Provide Services & contents Control Layer:-Provide Session & call control function Connectivity Layer:-Physical transport & access tech.

  7. Mobile Soft switch Solution • Mobile soft switch enable a layered architecture design for the mobile circuit core , where the network functions responsible for service management & control and for transport of service data are physically & logically separated

  8. Mobile Soft switch Solution

  9. Advantages of Mobile Soft switch Solution • Packet backbone technology (IP or ATM) enables more efficient transmission of voice traffic over the backbone by retaining the same voice coding in the backbone as is used in the air interface • Access independent (GSM/WCDMA) core network • Reduction of backbone traffic • Simplification of network planning through common core for WCDMA & GSM

  10. UMTS network structure UE = User Equipment RAN = Radio Access Network CN = Core Network NMS = Network Management System

  11. Radio Access Method is Wideband Code Division Multiple Access (WCDMA). In GSM, we use TDM (Time Division Multiplexing) as the transmission method between the different network elements. For UMTS, ATM (Asynchronous Transfer Mode) has been chosen as the transmission method in the radio access network. The basic difference between TDM and ATM is that in TDM, we use timeslots for conveying information between network elements. In ATM, on the other hand, the data is transmitted in cells (packets) of fixed size across the network. (An ATM cell has 48 octets of payload, 5 octets of headers.)

  12. MSC Server • MGW • HLR/AUC • SGSN • GGSN • Mobile PBN • OSS • Lawful Intercept System

  13. M-MGW • Handel Payload • Make IP/ATM/TDM transport possible in the back bone • Echo Canceller • Tone sending

  14. MSC Server :- • Connection management • Mobility management • Charging • Security

  15. Monolithic MSC Architecture MSC Chennai BSC Thanjavour BTS Thanjavour  

  16. MGW MGW BSC BTS Layered Architecture Call Control Switching M S C Server Media Gateway BSC BTS   

  17. GSM N/W of BSNL would look like M S C Server Internet MGW SGSN GGSN BSC RNC Node - B BTS

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