Teknologi Pita Lebar 4G LTE


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Mobile data traffic is growing year to year. Mobile operators are facing a different situation from voice legacy business. The growth of data traffic is not as high as one of revenue. They need to lower cost of Mbps to survive otherwise they will collapse.

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Teknologi Pita Lebar 4G LTE

  1. 1. Teknologi Pita Lebar 4G: LTE Hazim Ahmadi Wireless Network Laboratory Telkom Research & Development Center di Universitas Gajah Mada 10 Desember 2010
  2. 2. Agenda  Internet and Mobile User  Mobile and Internet growth  Service and Application  Mobile data usage and emergence of new application  4th Generation: Long Term Evolution  Roadmap on 3GGP  Roadmap on 3GPP2  Overview LTE  Trial Result and LTE Video Service  Telkom Group, Huawei; June 2010, Bandung&Jakarta Hazim Ahmadi/Telkom RDC
  3. 3.  Internet and Mobile User  Mobile dan Internet Growth Hazim Ahmadi/Telkom RDC
  4. 4. Global ICT Development Total number of mobile user: • 2008 : 4,012 billion • 2009 : 4,652 billion • 2010 : 5,282 billion* Sumber : http://www.itu.int/ *) Predicted Indonesia click here Hazim Ahmadi/Telkom RDC
  5. 5. Internet Users• More than 10 operators are competing• There are about 180 mill out of 240 mill population• Voice and data services contribute to operators revenue• Some of them will be consolidating Wireless Subscriber of Q3 2009 2009 Operators (in thousands) 15% 2% 6% 4% Bakrie Tel. (CDMA) 10,500 16% Hutchison (GSM) 7,300 9% Indosat (GSM) 28,700 Mobile 8 (CDMA) 3,400 2% Natrindo (GSM) 6,000 3% Telkomsel (GSM) 79,770 43% Telkom Flexi (CDMA) 15,500 Bakrie Tel. (CDM A) Hutchison (GSM ) Indosat (GSM ) M obile 8 (CDM A) Natrindo (GSM ) XL Axiata (GSM) 26,600 Telkomsel (GSM ) Telkom Flexi (CDM A) XL Axiata (GSM ) Others (CDM A) Others (CDMA)* 3,500 Totally 181,270 Hazim Ahmadi/Telkom RDC
  6. 6.  Service and Application  Mobile data usage and emergence of new application Hazim Ahmadi/Telkom RDC
  7. 7. Person-to-person communication  Rich voice  Video Telephony  SMS/MMS http://kurungsiku.web.id/2010/05/16/fitur-baru-skype-group- video-calling/ Hazim Ahmadi/Telkom RDC
  8. 8. Social Networking  Communities/Blogging  Gaming  Photo/Video Sharing Hazim Ahmadi/Telkom RDC
  9. 9. Business Service  Mobile Office  High Speed Access  Email  Mobile Conferencing Hazim Ahmadi/Telkom RDC
  10. 10. Mobile Commerce Mobile Banking  Bank Transfer  Check balance Mobile Payment  Ticketing  Vending machine Mobile Advertising Hazim Ahmadi/Telkom RDC
  11. 11. The next customer • Car Monitoring • Home Security • Machine to Machine Comm. Hazim Ahmadi/Telkom RDC
  12. 12. Content Delivery  Mobile TV  Video on Demand  MusicTremendous video on Internet will be widely accessed via wireless broadband network Hazim Ahmadi/Telkom RDC
  13. 13. Web 2.0  Social Networking  Interactive Prosumer  Video sharing Hazim Ahmadi/ Telkom RDC
  14. 14. Internet volume of Indonesia• 2005 ---- 1.4 GB to Internet GW • 2008 ---- 10 GB to Internet GW • 2009 ---- 19 GB to Internet GW Hazim Ahmadi/Telkom RDC
  15. 15. Broadband = High Way • Mobile Internet access traffic doubles every 12-18 months – Data card – Smart phones effect Bandwidth is never enough Hazim Ahmadi/Telkom RDC
  16. 16. How to bring them? Hazim Ahmadi/Telkom RDC
  17. 17.  4th Generation: Long Term Evolution  Roadmap on 3GGP  Roadmap on 3GPP2  LTE overview Hazim Ahmadi/Telkom RDC
  18. 18. Where is the mobile industry growing? Hazim Ahmadi/Telkom RDC
  19. 19. 2G Technology Evolution in 3GPP GSM 9.6kbps (one timeslot) GSM Data Also called CSDGeneral Packet Radio ServicesData rates up to ~ 115 kbpsMax: 8 timeslots used as any one time Enhanced Data Rates for Global EvolutionPacket switched; resources not tied up all the time Uses 8PSK modulationContention based. Efficient, but variable delays 3x improvement in data rate on short distancesGSM / GPRS core network re-used by WCDMA (3G) Can fall back to GMSK for greater distances Combine with GPRS (EGPRS) ~ 384 kbps Can also be combined with HSCSD Hazim Ahmadi/Telkom RDC
  20. 20. 3G Technology in 3GPP  UMTS evolved from GSM via GPRS/EDGE.  Splitting circuit switched network and packet switched network  Data rates of UMTS are: Rel.99 : 384 kbps/384 kbps Rel.5 : 7.2 Mbps/384 kbps (HSDPA) Rel.6 : 7.2 Mbps/5.8 Mbps Rel.7 : 21 Mbps (HSPA+) Hazim Ahmadi/Telkom RDC
  21. 21. 2G&3G technology in 3GPP2 IS-95B CDMA2000 1xEV-DO: Evolved Data Optimised Uses multiple code channels Third phase in CDMA2000 evolution Data rates up to 64kbps Standardised version of Qualcomm High Data Rate (HDR) Many operators gone direct to 1xRTT Adds TDMA components beneath code components Good for highly asymmetric high speed data apps IS-95B Speeds to 2Mbps +, classed as a “3G” system Use new or existing spectrum CDMA IS-95A CDMA2000 1xEV-DO 1xEV-DV 3xRTTIS-95A14.4 kbps 1xRTT CDMA2000 1x Evolved DVCore network CDMA2000 1xRTT: single carrier RTT Fourth phase in CDMA2000 evolutionre-used in First phase in CDMA2000 evolution Speeds to 9.3 Mbps+CDMA2000 Release 0 - max 153.6 kbps Hazim Ahmadi/Telkom RDC
  22. 22. Between LTE and WiMAX 3GPP LTE 3GPP2 UMB Mobile WiMAXChannel Bandwidth 1.4, 3, 5, 10, 15 and 20 MHz 1.25, 2.5, 5, 10 and 20 MHz 5, 7, 8.75 and 10 MHzDL multiple access OFDMA OFDMA OFDMAUL multiple access SC-FDMA OFDMA and CDMA OFDMADuplexing FDD and TDD FDD and TDD TDDSubcarrier mapping Localized Localized and distributed Localized and distributedSubcarrier hoping Yes Ups…Sorry. Since Yes YesData modulation QPSK, 16QAM and 64QAM there is no QPSK, 8PSK, 16QAM, and 64QAM QPSK, 16QAM and 64QAMSubcarrier spacing 15 KHz supporter this 9.6 KHz 10.94 KHzFFT size (5 MHz) 512 technology was 512 512 Convolutional coding and turbo halted. Convolutional coding, turbo coding Convolutional coding and convolutional turbo coding.Channel coding coding and LDPC coding Block turbo coding and LDPC coding optional Multi-layer precoded spatial Multi-layer precoded spatial multiplexing space-time/ frequency multiplexing, space-time transmit Beamforming, Space-time codingMIMO block coding, switched transmit diversity, spatial division multiple and spatial multiplexing. diversity and cyclic delay diversity access and beamforming. Hazim Ahmadi/Telkom RDC
  23. 23. You decide! WiMAX? LTE? Hazim Ahmadi/Telkom RDC
  24. 24. LTE Architecture P-GW: IP address allocation, Provide UE QoS for GBR, Gateway to InternetMME:Manages and stores the UE control S-GW:plane context, Generates temporary Id Gateway to UE, Anchor forUE authentication, Authorization of TA data bearer when HO, BuffersMobility management data while the MME paging to UE, Retains a bearer info when UE in ECM-IDLEeNB:•User-plane : radio link cont.,medium access cont., physical•Control-plane: radio resourcescontrol termination towards UEInterface to SGW via S1 Hazim Ahmadi/Telkom RDC
  25. 25. LTE Latency PerformanceLatency Control-plane Transition times from idle or dormant states to active state < 100 ms What is delay? what is latency?Latency User-plane Radio access network latency < 5 ms in unloaded condition for small IP packet Hazim Ahmadi/Telkom RDC
  26. 26. Key Features (1/2)Multiple access scheme DL : OFDMA with CP (Cyclic Prefix) UL : Single Carrier FDMA (SC-FDMA) with CPAdaptive modulation and coding DL/UL modulations : QPSK, 16QAM and 64QAM Convolutional code and Rel-6 turbo codeAdvanced MIMO spatial multiplexing techniques (2 or 4) x (2 or 4) downlink and uplink supported Multi-user MIMO also supported Hazim Ahmadi/Telkom RDC
  27. 27. Key Features (2/2) Two popular techniques in MIMO wireless systems:Spatial Diversity: Increased SNR Spatial Multiplexing: Increased rate Receive and transmit diversity mitigates  Spatial multiplexing yields substantial fading and improves link quality increase spectral efficiency Hazim Ahmadi/Telkom RDC
  28. 28. LTE Data PerformancesDownlink HSDPA (Rel.6) LTE FulfillmentSpectral efficiency (bps/Hz/s) 0.75 1.84 2.5Cell edge user throughput 0.006 0.0148 2.5(bps/Hz/s)Peak bit rate (Mbps) 14.4 144 Target 100 Mbps Uplink HSUPA (Rel.6) LTE FulfillmentSpectral efficiency (bps/Hz/s) 0.26 0.67 2.6Cell edge user throughput 0.006 0.015 2.5(bps/Hz/s)Peak bit rate (Mbps) 5.7 57 Target 50 Mbps Hazim Ahmadi/Telkom RDC
  29. 29. Femtocell (Home eNodeB)• Simple, low cost, easy-to-install cellular access point for homes (& offices & metro areas)• Delivering fast, reliable service to standard phones over licensed spectrum• Supported in 3G and next-generation standards by 3GPP, 3GPP2, WiMAX Forum, Broadband Forum Hazim Ahmadi/Telkom RDC
  30. 30. Spectrum AvailabilityFlexible spectrum Provide spectrum flexibility for operation in differently sized spectrumFDD and TDD Supports paired and unpaired spectrum on the same hardware platform Hazim Ahmadi/Telkom RDC
  31. 31. LTE Global Spectrum Hazim Ahmadi/Telkom RDC
  32. 32.  Trial Test Measurement Result  Telkom Group, Huawei; June 2010, Bandung&Jakarta Hazim Ahmadi/Telkom RDC
  33. 33. LTE : Download data rate test Hazim Ahmadi/Telkom RDC
  34. 34. LTE : Upload data rate test Hazim Ahmadi/Telkom RDC
  35. 35. User Equipment • Smart handset • USB dongle • Embedded in notebook computer Hazim Ahmadi/Telkom RDC
  36. 36. Service and Application ALU redefine wireless experience services of LTE
  37. 37. Challenges and OpportunitiesLet me ask you thisquestion: peluang apa saja yang bisa dikembangkan oleh mahasiswa dan Indonesia? Hazim Ahmadi/Telkom RDC
  38. 38. Challenges and Opportunities Pemerintah belum menyatakan waktu dan spektrum frekuensi yang dialokasikan untuk LTE. Indonesia berada di antara adopsi teknologi WiMAX dan LTE. Layanan dan aplikasi apa saja yang sesuai dengan pipa yang begitu besar? Harapan pengguna, operator dan pemerintah terhadap teknologi LTE ke depan. Riset femto cell bagi akademisi di Indonesia dll Hazim Ahmadi/Telkom RDC
  39. 39. Thank You Gracias! Hazim Ahmadi/Telkom RDC