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. 2 24-Apr-09 High data rates (384kbps-14.4 Mbps) + 2 nd gen. services 1990 2000 1 st Generation2 nd Generation3 rd Generation Analog speechDigital speech + low-rate data (  64 kbps ) NMT, AMPS, TACSGSM, PDC, IS-136, IS-95 UMTS/IMT-2000 1980 What is Third Generation?

5. 20 24-Apr-09 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.

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

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

8. 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 Mobile Soft switch Solution

10. Advantages of Mobile Soft switch Solution 1.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 2.Access independent (GSM/WCDMA) core network 3.Reduction of backbone traffic 4.Simplification of network planning through common core for WCDMA & GSM

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

12. 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.)

13. 1.MSC Server 2.MGW 3.HLR/AUC 4.SGSN 5.GGSN 6.Mobile PBN 7.OSS 8.Lawful Intercept System

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

15. MSC Server :-  Connection management  Mobility management  Charging  Security

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

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

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