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Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
Mig from 2g to 3g
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Mig from 2g to 3g

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  • 1. 2G to 3G 1/24
  • 2. 2G to 3G Outline of the Lecture 2/24 ► Operator Evolution Options ► GSM migration towards 3G ► What is 3G Mobile & 3G Vision ? ► 3G Spectrum ► Network standardization ► Why WCDMA ? ► WCDMA Architecture & Applications ► Threat to Today’s 3G
  • 3. 2G to 3G Operator Evolution Options 3/24 3G offers a logical migratory path from 2G Networks for > 90% of Subscribers
  • 4. 2G to 3G GSM towards 3G 4/24 2G - GSM Architecture PSDN BSC BTS BSC HLR SMS-SC BSC MSC/VLR PLMN MSC/VLR BSC BTS — Base Transceiver Station BSC — Base Station Controller GMSC Tandem PSTN Tandem CO CO CO MSC — Mobile Switching Center VLR — Visitor Location Register HLR — Home Location Register
  • 5. 2G to 3G GSM towards 3G 5/24 General Packet Radio Service 2.5 G - GPRS Architecture 2G MS (voice only) NSS BSS E PSTN Abis A PSTN B BSC C MS MSC GMSC D BTS Gs VLR SS7 H Gb2G+ MS (voice & data) HW & SW Changes Gr HLR for HSCSD AuC Gc Gn Gi PSDN SGSN IP GGSN SGSN — Serving GPRS Support Node GGSN — Gateway GPRS Support Node ►Provide up to 114 Kbps data rate ►Data rates achieved is a step towards UMTS
  • 6. 2G to 3G GSM towards 3G 6/24 2.75 G – EDGE Architecture ►Provide up to 384 kbps data rate, one GPRS terminal gets 8 time slots. ►Data rates achieved is almost equal to UMTS, not available everywhere in cell.
  • 7. 2G to 3G What is 3G Mobile System ? 7/24 Broadband Service Packet Based Transmission Transmission of Text, Digitized voice, Video at data rate > 2 Mbps Consistent set of services to mobile computer and phone users wherever they are located 3G - UMTS Network consists of: UTRAN (UMTS Terrestrial Radio Access Network) – Uses WCDMA & FDD CN (Core Network) UE (User Equipment)
  • 8. 2G to 3G 3G Vision 8/24 ☻ Common spectrum worldwide (1.8 – 2.2 GHz band) ☻ Multiple radio environments (Cellular, Cordless, Satellite, LANs) ☻ Wide range of telecom services (Voice, Data, Multimedia, Internet) ☻ Increased spectrum efficiency ☻ Data rates up-to 2 Mbps – for indoor environment ☻ Maximum use of IN capabilities ☻ Global seamless Roaming ☻ Enhanced security and performance ☻ Integration of Satellite and Terrestrial systems
  • 9. 2G to 3G 3G Spectrum 9/24 WRC-92 & WRC-2000 Recommended In India, National Frequency Allocation Plan 2002 has reserved 60 MHz in WARC-92 1G + 2G identified band of 1920 - 1980 MHz paired 802 with 2110 - 2170 MHz for 3G. WRC-92 960 MHz 2G (Asia & Europe) + 3G 1710 WRC-2000 1885 MHz DECT, PHS + 2G + 3G 3G 1885 WRC-92 2025 2110 WRC-92 2200 MHz 3G 2500 WRC-2000 2690 MHz
  • 10. 2G to 3G Network standardization 10/243G Partnership Project 3GPP Rel. 99 Objectives 3GPP define migration from GSM to UMTS (W-CDMA)  Bearer services  64 kbps circuit switching R- 99  384 kbps packet switching  Location services
  • 11. 2G to 3G Network standardization 11/24 3G Partnership Project 3G Rel. 99 Architecture (UMTS) — 3G Radios 2G MS (voice only) CN BSS E PSTN Abis A PSTN B BSC MSC C GMSC Gb D BTS Gs VLR SS7 H2G+ MS (voice & data) IuCS RNS Gr HLR AuC ATM Gc Iub IuPS Gn Gi PSDN RNC SGSN IP GGSN Node B3G UE (voice & data) RNS — Radio Network System, RNC — Radio Network Controller
  • 12. 2G to 3G Network standardization 12/243G Partnership Project 3GPP Rel. 4 Objectives  Bearer services  64 kbps circuit switching R- 99  384 kbps packet switching  Location services  Edge radio R- 4  MMS  Improved Location services
  • 13. 2G to 3G Network standardization 13/24 3G Partnership Project 3G Rel. 4 Architecture (UMTS) — Soft Switching 2G MS (voice only) CN Nb CS-MGW BSS A CS-MGW Abis Nc PSTN PSTN Mc Mc B BSC MSC Server C GMSC server Gb D BTS Gs VLR SS7 H2G+ MS (voice & data) IuCS RNS Gr HLR IP/ATM AuC ATM Gc Iub IuPS Gn Gi PSDN RNC SGSN GGSN Node B3G UE (voice & data)
  • 14. 2G to 3G Network standardization 14/243G Partnership Project 3GPP Rel. 5 Objectives  Bearer services  64 kbps circuit switching R- 99  384 kbps packet switching  Location services  Edge radio R- 4  MMS  Improved Location services  IP Multimedia Subsystem (IMS) R- 5  IPv6, IP transport in UTRAN  High Speed Downlink Packet Access (HSDPA)
  • 15. 2G to 3G Network standardization 15/243G Partnership Project 3G Rel. 5 Architecture (UMTS) — IP based UTRAN
  • 16. 2G to 3G Network standardization 16/243G Partnership Project 3GPP Rel. 6 Objectives  Bearer services  64 kbps circuit switching R- 99  384 kbps packet switching  Location services  Edge radio R- 4  MMS  Improved Location services  IP Multimedia Subsystem (IMS) R- 5  IPv6, IP transport in UTRAN  High Speed Downlink Packet Access (HSDPA)  WLAN integration  Multimedia broadcast and Multicast R- 6  Improvements in IMS, “All IP” Network  HSUPA
  • 17. 2G to 3G Why WCDMA ? 17/24 > 75% of world’s cellular subscribers are on GSM – for migration to 3G. WCDMA (3GSM) & CDMA 2000 EVDO use the same spread spectrum technology. WCDMA (3GSM) has a much higher voice capacity. Wider acceptance of WCDMA (3GSM) technology means significant economies of scale for the suppliers in the long run. 5MHz carrier BW of WCDMA (3GSM) supports high data rates and brings performance benefits. Channel rates: UL - 15 Kbps to 960 Kbps & DL - 15Kbps to 1920 Kbps
  • 18. 2G to 3G WCDMA Network Architecture 18/24 Other NW PDN & Internet GMSC AuC GGSN HLR CN EIR MSC/VLR MSC/VLR SGSN SGSN BSS BSC RNS RNC RNC RNS BSC BSS BTS BTS NODE-B NODE-B NODE-B NODE-B BTS BTS GSM WCDMA GSM Radio Radio Radio ME SIM USIM
  • 19. 2G to 3G WCDMA Applications 19/24 World of Mobile Multimedia through WCDMA Business Sphere Public Sphere Private Sphere
  • 20. 2G to 3G WCDMA Applications 20/24 Multimodal Services and Multi-Application Platforms Combined voice and data applications ►Today, without “all IP” infrastructure ►Text messaging plus speech recognition-enabled voice services ►Evolve from as new services become available Multi-application platform ►Integrate TDM voice and IP data ►Support multiple applications ►Flexible billing and provisioning
  • 21. 2G to 3G WCDMA Applications 21/24 Sample Multimodal Applications Travel information ►Make request via voice, Receive response in text New s ►Get updates while traveling via voice or SMS or rich graphics One-to-many messaging ►Record message via voice or text ►Deliver message via voice, SMS, WAP, or email Unified communications ►While listening to a voice message, obtain a text display of recent customer activity Emergency response team ►Voice conference and text updates while traveling to site of emergency
  • 22. 2G to 3G Threat to Today’s 3G — Wireless LANs 22/24 Faster than 3G ►11 or 56 Mbps vs. <2 Mbps for 3G when stationary Data experience matches the Internet ►Same user interface (doesn’t rely on small screens) ►Same programs, Files, Applications, Websites. Low cost, low barriers to entry Organizations can build their own networks ►Like the Internet, will grow virally Opportunity for entrepreneurs! Opportunity for wireless operators?
  • 23. 2G to 3G Conclusions 23/24 WCDMA most natural migration from GSM WCDMA most natural migration from GSM Designed for rich data content Designed for rich data content Different services with QoS Different services with QoS More spectrum for voice More spectrum for voice Continue GSM’s global roaming Continue GSM’s global roaming Wire-free world replacing wired world Wire-free world replacing wired world Interoperable standards, Applications and VAS Interoperable standards, Applications and VAS Encapsulates vision of global wireless village Encapsulates vision of global wireless village
  • 24. 2G to 3G 24/24

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