3G Presentation

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Presentation Transcript

Slide 1: 

3G Mobile Dawn of Mobile Broadband Prepared by: M. Pandian, Divisional Engineer, (Retired) BSNL

Slide 2: 

One thing is sure: The future will be unlike anything we know!

Agenda : 

Agenda Today’s Technological Trends Status at a glance Evolution of mobile systems (pre-cellular /1G /2G /3G) Paradigm Shift 3G 4G Key takeaways

Slide 4: 

TWO MAIN TECHNOLOGICAL TRENDS OF TODAY: MOBILE COMMUNICATIONS INTERNET Interestingly, mobile subscribers are increasingly demanding Internet access while on the move and at increasingly high speeds; thereby resulting in the Convergence of the above two technological trends leading to the birth of “Mobile Broadband” (application) and 3G/4G Technologies (enablers of this application) Paradigm shift - Internet goes Mobile ….Continued

Slide 5: 

Statistics at a glance: Global Mobile Subscriber growth has been phenomenal from zero levels in 1992 to cross the landline’s billion by 2002 and the climb to 2.68 billion by Dec. 2006 The global mobile phone market is set to grow to 4 - 4.5 billion by 2011 fuelled by strong demand from developing economies in Asia and Latin America. 61% of the world’s mobile subscribers are in developing countries. China and India together added almost 200 million mobile subscribers to the global total in the first three months of this year. Almost 1 billion handsets sold in the year 2006. 1 billion internet users by Dec. 06. 275 million broadband connections. Around 2010, data traffic likely to exceed voice traffic. All the above point to a remarkable development that is changing the world and the way be communicate!

Slide 6: 

INDIAN SCENARIO (Sept. 07) Fixed subscribers - 39.58 million Mobile - 209.08 million Gross - 248.66 million Tele density - 21.85% Rural Tele density - around 5% Broadband subscribers - 2.67 million Internet Users - 50 million PCs - 5 million Cable TV - 63- 64 million connection Target by 2007 - 250 million subscribers. - 10 million broadband connections Target by 2010 - 500 million subscribers. - 20 million broadband connections 2007 has been declared as the year of Broadband.

Slide 7: 

India’s wireless market is growing at ~6-7 Million new subscribers every month Mobile Subscribers Millions 149 240 400 460 330 Fixed Line Subscribers Third largest cellular market in the world Fastest growing telecom market in the world – 500 Million subs by 2010 5 competing GSM and 2 CDMA operators in over 8000 cities & towns Lowest Tariff compared to other countries Wireless Subscribers Growth is Exponential

Slide 8: 

Phenomenal Growth 1.07 22

Slide 10: 

Evolution types Evolution contains not only technical evolution but also expansion to network architecture and services. • Technical evolution: How network elements are developed and with which technology. • Network evolution: In result of network element evolutions the general functionality of the network is changing. – Technical evolution different for different vendors. • Service evolution: Demand generated by the end-users that can be supported by the technical features of the network.

Evolution of the wireless networks : 

Evolution of the wireless networks

Slide 12: 

Evolution from GSM to 3G EDGE:-Enhanced Data Rate for GSM Evolution UMTS:- Universal Mobile Telecom Service

Carrier and Users : 

Carrier and Users GSM utilizes the frequency band 935–960 MHz for the forward link and frequency range 890–915 MHz for the reverse link. Each 25-MHz band is broken into radio channels of 200 kHz. Each radio channel consists of eight time slots. The number of simultaneous users that can be accommodated in GSM is equal to 25X 1000000//(200X1000)/8 = 1000

Roadmap to 3G : 

Roadmap to 3G

Basic GSM network (1) : 

Basic GSM network (1) Driving idea in GSM: to define several open interfaces. – Operator may obtain different network components form different suppliers. – Strictly defined interface determines how the functions are proceeding in the network and which functions are implemented internally by the network element. • GSM provides a means to distribute intelligence in the network. Network is divided into four subsystems: Network Subsystem (NSS): call control. Base station Subsystem (BSS): radio path control. Network Management Subsystem (NMS): operation and maintenance. Mobile Station (MS).

Typical 2G Mobile Architecture : 

Typical 2G Mobile Architecture

GSM 2G Architecture : 

GSM 2G Architecture

PSTN-to-Mobile Call : 


GSM Network elements : 

GSM Network elements MS: Mobile equipment + Subscriber data (Service Identity Module) • Base Station Controller (BSC): – Maintains radio connections towards Mobile Station. – Maintains terrestrial connection towards the NSS. • Base Transceiver Station (BTS): – Air interface signalling, ciphering and speech processing. • Mobile Service Switching Centre (MSC): – Call control. – BSS control functions. – Internetworking functions. – Charging, – Statistics, – Interface signalling towards BSS and external networks. • Serving MSC: BSS connections, Mobility Management, Inter-working. • Gateway MSC: Connections to the other networks. • Visitor Location Register (VLR): Local store for all the variables and functions needed to handle calls in the area related to VLR.

Value Added Service platform : 

Value Added Service platform Value Added Service (VAS) platform: - simple platform for supporting certain type of services in GSM. (Short Message Service Centre (SMSC), Voice Mail System (VMS)) – Use standard interface towards GSM. May or may not have external interfaces towards other networks.

Intelligent Network (IN) : 

Intelligent Network (IN) Intelligent network: A platform for creating and providing additional services. – Enables service evolution. – Changes in the GSM switching elements to integrate the IN functionality. – Example pre paid subscription. • IN adopted from fixed network. – Not possible to transfer service information between networks.

High Speed Circuit Switched Data (HSCSD). : 

High Speed Circuit Switched Data (HSCSD). The data throughput of the system is increased: – Channel coding is improved (9.6 kb/s -> 14 kb/s). High Speed Circuit Switched Data (HSCSD). – Several traffic channels can be used. – Max data rate 40 -50 kb/s.

2.5G Architectural Détails (GPRS) : 

2.5G Architectural Détails (GPRS) BSS Base Station System BTS Base Transceiver Station BSC Base Station Controller NSS Network Sub-System MSC Mobile-service Switching Controller VLR Visitor Location Register HLR Home Location Register AuC Authentication Server GMSC Gateway MSC SGSN Serving GPRS Support Node GGSN Gateway GPRS Support Node GPRS General Packet Radio Service 2G MS (voice only)


EDGE Exchanged Data Rates for Global/GSM Evolution (EDGE): – New modulation scheme. (8 PSK) – Different coding classes. Maximal data rate 48 kbps per channel.

Communications Transformation : 

Communications Transformation

Technology Convergence : 

Technology Convergence Convergence Frontier 3G

Defining the Next Generation : 

Defining the Next Generation What is the Third Generation ?

The ITU’s Vision for 3G : 

The ITU’s Vision for 3G Future Public Land Mobile Telecommunications Service (FPLMTS) (Initiative of the ITU since 1985 to define 3rd generation of wireless) Difficult to pronounce, hence “FPLMTS” changed to IMT-2000 IMT-2000 is the abbreviation for “International Mobile Telecommunication”

ITU Requirements : 

ITU Requirements Small, Low Cost Pocket Terminals Worldwide Roaming Single System for Residential, Office, Cellular, Satellite, Environments Backward compatibility Data Services Delivery Vehicular Environment: 144 Kbps Pedestrian Environment: 384 Kbps Indoor Environment: 2 Mbps

3G Awareness : 

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.

Slide 31: 

With a 3G Phone and access to the 3G network you can Make video calls Watch live TV Access the high speed internet Receive emails Download music tracks Download video of entertainment, News, Current affairs and sport content and Video messaging Usual voice calls and messaging service found on a mobile phone

Applications : 

Applications e- Learning e- Medicines e- Governance Mobile TV To provide Live-TV content through a mobile device See the news, sports and entertainment program either on mobile or on PC Freedom to watch great content wherever and whenever you are. With mobile TV, rural applications that can benefit the rural inhabitants can be particularly interesting e.g weather forecast.

IMT-2000 Terrestrial Radio Interfaces (UMTS Terrestrial Radio Access Network) : 

IMT-2000 Terrestrial Radio Interfaces (UMTS Terrestrial Radio Access Network) IMT-2000 CDMA Direct Spread IMT-2000 CDMA Multi-Carrier IMT-2000 CDMA TDD IMT-2000 TDMA Single Carrier IMT-2000 FDMA/ TDMA UMTS cdma2000 1X and 3X UTRA TDD & TD-SCDMA) UWC-136/ EDGE DECT Key IMT2000 Requirements: High Speed Packet Data 144k - Vehicular 384 - Pedestrian 2Mb - Indoor Global Roaming UIM - Based on SIM ITU-R Assembly has also approved WiMAX as part of the IMT-2000 family

ZTE 3G Total Solution : 

ZTE 3G Total Solution RRU Indoor Macro Node B Outdoor Macro Node B Indoor Micro Node B Outdoor Micro Node B Pico Node B UTRAN RNC RRU Base Band Pool RRU RRU RRU MSC Server MGW HLR SGSN GGSN Core Network SS7 Internet WAP Gateway GSM/GPRS BSS PSTN/ISDN Service Gateway Management Platform SCP Service Platform RNC

3G technical requirements : 

3G technical requirements Bit Rate: – Rural outdoor 144 kbps (500 km/h). – Suburban outdoor 384 kbps (120 km/h) . – Indoor 2 Mbps (10 km/h). Variable bit rate capability: granularity, circuit and packet bearers. Service Multiplexing. Varying delay and quality of service requirements. (priorities of traffic). Handover: seamless between the cells and different operators. Co-existence with and handover to 2G systems (with WCDMA to GSM). Support of asymmetric traffic. High spectrum efficiency. Coexistence of FDD and TDD modes.

3G rel99 Architecture (UMTS) : 

3G rel99 Architecture (UMTS) SS7 IP BTS BSC MSC VLR HLR AuC GMSC BSS SGSN GGSN PSTN PSDN CN Gs BSS Base Station System BTS Base Transceiver Station BSC Base Station Controller RNS Radio Network System RNC Radio Network Controller CN Core Network MSC Mobile-service Switching Controller VLR Visitor Location Register HLR Home Location Register AuC Authentication Server GMSC Gateway MSC SGSN Serving GPRS Support Node GGSN Gateway GPRS Support Node A E PSTN 2G MS (voice only) 2G+ MS (voice & data) UMTS Universal Mobile Telecommunication System Gb

3G rel4 - Soft Switching : 

3G rel4 - Soft Switching

3GPP rel5 ― IP Multimedia : 

3GPP rel5 ― IP Multimedia

3G network : 

3G network

Family Conception : 

Family Conception 3G standards CN based on GSM TD-SCDMA CN based on MAP CDMA2000 CN based on ANSI-41 When Core Network is based on GSM or IS-41, Radio Network should adopt WCDMA or TD-SCDMA. GSM is the most mature technology in the 2G system. CDMA is the main technology of 3G WCDMA Standardization Organizations of 3G

Standardization Organization of 3G : 

Standardization Organization of 3G There’re so many standardization organization of 3G. 3Gpp and 3Gpp2 is the most famous. Third Generation Partnership Project (3GPP) was formed to continue the technical specification work for a 3rd Generation Mobile System based on the evolved GSM core networks. 3GPP--- was responsible for WCDMA and TD-SCDMA standardization process . Third Generation Partnership Project 2 (3GPP) was formed for technical development of cdma2000 technology which is a member of IMT-2000 family. 3Gpp2 focus on evolution from IS-95.

Speciality : 

Speciality R4 architecture; GSM and WCDMA hybrid network; support 2G/3G handover and roaming Both Pre-paid and Post-paid are available Thousands of dual mode mobile subscribers can smoothly migrate to 3G network

Consolidation : 

Consolidation Service Data Rate GSM 9.6 Kbps GPRS 115 Kbps HSCSD 64 Kbps EDGE upto 384 Kbps CDMA 2000 1X 153.6 Kbps 1X EVDO upto 2 Mbps UMTS upto 2 Mbps

Questions : 

Questions What is IMT 2000? What is CDMA 2000? What is GSM? What is WCDMA? Why hybrid network?

Slide 45: 

Thank You

UTRAN and system Architecture : 

UTRAN and system Architecture

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