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Beyond 3G LTE Long Term Evolution

Beyond 3G LTE Long Term Evolution. Agenda. Cellular History Key Technologies 3GPP and LTE Networks Architecture (GSM/GPRS/HSPA/LTE) Comparison Time Line of LTE. History. 2007. 3G+. 1G. 2G. 2.5G. 3G. Data Rate. Fixed NetWorks. 900 MHz 1800 MHz Voice/Data. 900-1800 MHz

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Beyond 3G LTE Long Term Evolution

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  1. Beyond 3GLTELong Term Evolution

  2. Agenda • Cellular History • Key Technologies • 3GPP and LTE • Networks Architecture (GSM/GPRS/HSPA/LTE) • Comparison • Time Line of LTE

  3. History 2007 3G+ 1G 2G 2.5G 3G Data Rate Fixed NetWorks 900 MHz 1800 MHz Voice/Data 900-1800 MHz Voice, Camera Tiny Internet 900-1800-1900 MHz Smart Phone Video, Internet… 900 MHz Voice 1984-1996+ 1992-1998 1999 1999-2005+ 2005+

  4. Wireless Access Evolution Subscribers • Broadband • Network Simplification • Cost of Ownership • New Services • Efficiency • More Data Services required • Voice Quality • Portability • Capacity • Data Service • Coverage • Mobility 2G 4G 3G 1G Voice Broadband

  5. FDMA, TDMA & CDMA • FDMA (Frequency Division Multiple Access) • Each user on a different frequency • A channel is a frequency • TDMA (Time Division Multiple Access) • Each user on a different window period in time slot. • CDMA (Code Division Multiple Access) • Each user uses the same frequency all the time but mixed with different distinguished code patterns.

  6. Multimedia Analog PacketData Digital Voice 1G 2G 2.5G 3G+ GSM EDGE GPRS UMTS - WCDMA/HSDPA TDMA Data Transmission Always-On Connectivity via Packet Data Technology Improved VoiceQuality Voice Super High Speed Data Greater Network Capacity Increased Capacity 1984-1996+ 2002-2005+ 1992-2000+ 2001

  7. Cellular Generation First Generation (AMPS) Few users , expensive , large size, and FM,FDMA Second Generation (GSM) Digital system, more user, improved to supply data (EDGE , GPRS). FDMA/TDMA ,GMSK Third Generation (WCDMA) Voice & data (CDMA), improved to increase the speed 7Mbps(HSPDA). WCDMA Fourth Generation (LTE) Super High Speed Data, Simple Network, Low Cost OFDMA , 100 Mbps

  8. Key Technologies

  9. Two Key technologies are evolving to meet the Wireless Broadband Requirements 4G Air Interfaces Wide Area Mobile MOBILE BROADBAND LTE UMTS GPRS EDGE GSM HSPA 3GPP 802.16e (Mobile WIMAX) Mobile Industry Coverage/Mobility Nomadic Metro Area 802.16a/d (Fixed NLOS) Fixed Wireless Industry 802.11n (smart antennas) 802.11 Mesh extns. 802.16 (Fixed LOS) DSL Experience Dial Up Local Area Fixed 802.11b/a/g Data Rates (kbps) 100,000 + Higher Data Rate / Lower Cost per Bit

  10. Goal of LTE/Converge Networks

  11. How to achieve it ?

  12. Japan USA What is 3GPP? • 3GPP stands for 3rd Generation Partnership Project • It is a partnership of 6 regional SDOs (Standards Development Organizations) • These SDOs take 3GPP specifications and transpose them to regional standards

  13. Towards LTE

  14. 3G Technologies Overview • 3GPP : UMTS • Phase 1 (3GPP release 5) : HSDPA service, • Phase 2 (3GPP release 6):HSUPA Uplink high-speed data • Phase 3 :(3GPP release 7) HSPA+ Capacity Improvements in UL and DL, above 10 Mbps • Next-Generation Cellular System (in about 2010) (LTE) Release 8 • 100 Mbps DL and 50 Mbps UL full-mobility wide area coverage • 1 Gbps low-mobility local area coverage

  15. LTE radio access Downlink: OFDM Uplink: SC-FDMA Advanced antenna solutions Diversity Beam-forming Multi-layer transmission (MIMO) Spectrum flexibility Flexible bandwidth New and existing bands Duplex flexibility: FDD and TDD 1.4 MHz 20 MHz TX TX OFDMA SC-FDMA LTE Access

  16. Architectures’ • GSM Basic Blocks • GSM Voice Call • GSM Data Call • HSPA • LTE

  17. GSM Architecture Overview • A GSM system is made up of three subsystems: • The mobile station (MS) • The Base station subsystem (BSS) • The Network and switching subsystem (NSS) • The interfaces defined between each of these sub systems include: • “A” interface between NSS and BSS • “Abis” interface between BSC and BTS (Within the BSS) • “Um” air interface between the BSS and the MS

  18. GSM Voice Network A subscriber BSC BTS Only Voice Call MSC PSTNFixed Network BSC BTS B subscriber HSCS 9.6 Kp/s OMO

  19. GSM Architecture Abis Interface Interface

  20. GSM Voice and Data Call Architecture Voice Calls Path Data Calls Path Packet Data14.4 Kp/s

  21. 2G Towards 3G Networks IP networks Only PS Domain shown HLR Gi PCRF Gr Gx Gn Gn GGSN SGSN Iu Gb • Policy Control and Charging Rules Function (PCRF) - to manage Quality of Service (QoS) aspects RNC BSC Iur Node B BTS 2G 3G

  22. HSPA (Higher Speed Packet Access) IP networks Only PS Domain shown HLR/HSS Gi PCRF Gr Gx Gn GGSN SGSN Optimizing the 3G/HSPA payload plane for Broadband traffic Iu CP Iu UP Gb 10 Mb/s RNC BSC Iur Node B BTS 2G 3G

  23. LTE Architecture PA/DU Core & IMS IP networks HLR/HSS HLR/HSS SGi PCRF ”HLR/HSS” PCRF Gr S6a EPC PDN GW Serving GW S7 S4 PDN GWServing GW SGSN SGSN MME MME S2a/b S11 S3 ”Gateway” ”Mobility Server” S10 Iu CP Iu UP Gb S1-U S1-MME PA/DU Radio RBS RNC BSC Iur eNodeB eNode B X2 Node B BTS Non-3GPP access 2G 3G LTE OSS

  24. Main Nodes of LTE or EPC (Evolved Packet Core • · Serving GPRS Support Node (SGSN) - to provide connections for GERAN and UTRAN Networks • · Serving Gateway - to terminate the interface toward the 3GPP radio-access networks • · PDN Gateway - to control IP data services like routing, addressing, policy enforcing and providing access to non-3GPP access networks • · Mobility Management Entity (MME) - to manage control plane context, authentication and authorization • · 3GPP anchor - to manage mobility for 2G/3G and LTE systems • · SAE anchor - to manage mobility for non 3GPP RATs • · Policy Control and Charging Rules Function (PCRF) - to manage Quality of Service (QoS) aspects

  25. S2a/b Non-3GPP access From 3GPP to LTE/SAE The PDN and Serving GW may be separate nodes in some scenarios (S5 in-between) IP networks Only PS Domain shown HLR/HSS SGi PCRF Gr S6a S7 S4 PDN GWServing GW SGSN MME S11 S3 S10 Iu CP Iu UP Gb S1-U S1-MME RNC BSC Iur eNodeB X2 Node B BTS 2G 3G LTE PDN Gateway - to control IP data services like routing, addressing, policy enforcing and providing access to non-3GPP access networks

  26. Comparison withSpeed 40-100Mbps Fiber like speed on mobile • True high-speed mobile data • Full-motion HD video anywhere • Stream any content • Mobile peer2peer & Web 2.0 (Networking) • Triple play EDGE ADSL EVDO-A HSDPA ADSL-2+ LTE Fiber Mbps

  27. Comparison Cost • Spectral efficiencyBetter utilization of spectrum available • Low frequency, Advanced Receivers and Smart AntennaFor improved coverage and reduced cost of ownership • Increased CapacityMuch higher user and sector throughput for lower individual cost service delivery • Simpler RAN, IP Core & Centralized service deliveryFewer nodes & interfaces (Node-B/RNC/Gateway) One Network & IMS for all access technologies • Connect to legacy coresExisting network asset investment protection • 3GPP/2 Market tractionEconomy of scale $ UMTS rel.99 voice call cost 10% LTE VoIP cost* Predicted LTE VoIP voice call cost* - Sound Partners Limited Research 3GPP subscribers 85% market share

  28. Compassion Responsive 10-5msec latency Highly Responsive Multimedia • Improved user experience • Fast VoIP call set-up • Instantaneous web pages • Streaming fast buffering • Online mobile gaming EDGE ADSL EVDO-A HSDPA ADSL-2+ LTE Fiber

  29. LTE Time Line

  30. Mobile broadband speed evolution LTE Evolution LTE HSPA Evolution HSPA 3G- R’99 Target 1 Gbps Peak rate 384 kbps 3.6 Mbps 7/14 Mbps 21/28/42 Mbps ~150 Mbps 2013 2002 2005 2007 2008/2009 2009

  31. Thanks

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