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Presentacion de LTE para Universidad Jose Cecilio del Valle


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Presentacion de 4G y LTE para Univerisdad Jose Cecilio del Valle en Tegucigallpa Honduras
- Uso educacional solamente en Honduras.

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Presentacion de LTE para Universidad Jose Cecilio del Valle

  1. 1. 3GPP Long Term Evolution Introductorio (4G) Edwin A. Hernandez, PhD Rapid Mobile Technologies, Inc For educational purposes only Universidad Jose Cecilio del Valle
  2. 2. Contenido <ul><li>Introducción </li></ul><ul><li>Una red “ALL IP” </li></ul><ul><li>Movilidad en el Protocolo de Internet </li></ul><ul><li>Long Term Evolution </li></ul><ul><li>Preguntas y Respuestas </li></ul>
  3. 3. <ul><li>Third Generation Partnership Program [2] </li></ul>Japan USA
  4. 4. Introduccion <ul><li>1G, 2G, 3G, y ahora 4G del “Wireless” </li></ul><ul><li>1G (80’s) </li></ul><ul><ul><li>Sistemas analogical, FDMA (Frequency Division Multiple Access). AMPS (Advanced Mobile Phone Systems). Inventado por Motorola en los 80’s con tecnologia desarrollada en los 60’s y 70’s. </li></ul></ul><ul><li>2G (90’s) </li></ul><ul><ul><li>Sistemas digitales: Modulacion digital TDMA (Time Division Multiple Access) y Narrowband CDMA (Code Division Multiple Access). GSM, IS-95 o CDMAOne (Qualcomm) </li></ul></ul>
  5. 5. Dr. Martin Cooper of Motorola, made the first US analogue mobile phone call on a larger prototype model in 1973. This is a reenactment in 2007 [7]
  6. 6. Introduccion <ul><li>3G (Finales de los 90’s) </li></ul><ul><ul><li>Roaming Global, condiciones mas homogeneas </li></ul></ul><ul><ul><li>Wideband CDMA o W-CDMA </li></ul></ul><ul><ul><li>Otros estandares UMTS, CDMA 2000, TD-SCDMA </li></ul></ul><ul><ul><ul><li>UMTS: Universal Mobile Telecommunication System </li></ul></ul></ul><ul><ul><ul><li>TD-SCDMA: Time Division Synchronous Carrier Multiple Access </li></ul></ul></ul>
  7. 7. Introduccion <ul><li>Estamos en 3G: </li></ul><ul><ul><li>UMTS se mercadea como 3GSM para relacionarlo con EDGE/GSM </li></ul></ul><ul><ul><li>UMTS: Tambien una tecnologia definida por el 3GPP como parte del IMT-2000 y utiliza W-CDMA. El problema es que se necesitan nuevas estaciones de base en UMTS para soportar esta tecnologia </li></ul></ul>
  8. 8. Para donde va todo esto <ul><li>3GPP: Desarrollando LTE (Rel10-standard) para 4G: LONG TERM EVOLUTION </li></ul><ul><ul><li>LTE : Casi 4G, 3.9G </li></ul></ul><ul><ul><li>LTE Advanced: Completa los requirimientos de “IMT Advanced” </li></ul></ul><ul><li>3GPP2: Ultra Mobile Broadband </li></ul><ul><li>IEEE 802.16m WIMAX (Mobile WiMAX, no Fixed WiMAX) </li></ul>
  9. 9. <ul><li>“ MetroPCS, Verizon Wireless and AT&T Mobility in the United States and several worldwide carriers announced plans, beginning in 2009, to convert their networks to LTE. The world's first publicly available LTE-service was opened by TeliaSonera in the two Scandinavian capitals Stockholm and Oslo on the 14th of December 2009. LTE is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) which was introduced in 3rd Generation Partnership Project (3GPP) Release 8. Much of 3GPP Release 8 focuses on adopting 4G mobile communication's technology, including an all-IP flat networking architecture. On August 18, 2009, the European Commission announced it will invest a total of €18 million into researching the deployment of LTE and the certified 4G system LTE Advanced.” </li></ul>Src: [7]
  10. 10. Terminologia <ul><li>RAN – Radio Access Network </li></ul><ul><li>CN – Core Network </li></ul><ul><li>BTS – Base Station = BBU + RRU </li></ul><ul><li>BSC – Base Station Controller </li></ul><ul><li>BBU – Base Band Unit </li></ul><ul><li>RRU – Remote Radio Unit </li></ul><ul><li>LTE – Long Term Evolution (E-UTRAN) </li></ul><ul><li>RNC – Radio Network Controller, BSC in 3G </li></ul><ul><li>NodeB – BTS in 3G </li></ul><ul><li>eNB – Base Station Node in LTE </li></ul><ul><li>AIPN – All IP Network </li></ul><ul><li>NEP – Network Equipment Provider </li></ul>
  11. 11. Radio network controller Radio network controller Mobile switch center Service support node Gateway PSTN Access Network Core Network 2G-3G wireless network architecture Service Network 4G Wireless Network over Wireless Network Cloud Internet BS cluster BS cluster Cloud of Wireless Access Network + Core Network Review [4] BS BS BS BS SMS/MMS WAP GW SMS/MMS IMS Content Service Web Service Edge gateway Management Server Billing Edge gateway
  12. 12. Evolucion de 3GPP <ul><li>Release 99: UMTS/WCDMA (Marzo del 2000) </li></ul><ul><li>Rel-5: HSDPA Marzo del 2002. HSDPA: High-Speed Downlink Packet Access. (High Speed Packet access o 3.5G) </li></ul><ul><li>Rel-6 HSUPA Marzo del 2006: HSUPA: </li></ul><ul><li>Rel-7 (2007) Down Link MIMO, IMS (IP Multimedia System) real-time VoIP, gaming, PTT </li></ul>
  13. 13. Redes de Centradas en Datos [4]
  14. 14. ALL IP-Network <ul><li>No hay read separada Voice/GSM o CDMA en red PSTN (Public Switched Telephone Network) </li></ul><ul><li>Componentes de los sistemas de 4G </li></ul><ul><ul><li>Data centric: Comunicaciones entre UE (User Equipment) y los sistemas son basadas en canal de datos </li></ul></ul><ul><ul><ul><li>UL/DL : Miles de Mbits/sec </li></ul></ul></ul><ul><ul><ul><li>IMS o outsourced VoIP: e.g. Skype </li></ul></ul></ul><ul><ul><ul><li>Aplicaciones on IP: Video conference, Browser, email, twitter, facebook, convergencia multimeia </li></ul></ul></ul><ul><ul><ul><li>Mobilidad: Mobile IP, Proxy Mobile IP, Client Mobile IP </li></ul></ul></ul>
  15. 15. Importancia de un “ALL-IP” Network <ul><li>Una sola red para voz, datos, video, aplicaciones. </li></ul><ul><li>Implementacion y agregacion de servicios en forma instantanea (provisionamiento) </li></ul><ul><li>Red distribuida, no hay un “single point of failure” </li></ul><ul><li>Eficiencia operacional para la red </li></ul>
  16. 16. All-IP Network <ul><li>Mobile IP </li></ul><ul><ul><li>Home Network, Home Agent. El usuario se registra con su “Home Network” recibe un IP de esa red (Home) </li></ul></ul><ul><ul><li>Foreign Network, red vecina donde uno se mobiliz con otra subnet, gateway y routing. </li></ul></ul><ul><ul><li>Comunicacion se rompe al cambiar de IP Address, el IP Address se preserva via registracion y “tunneling” </li></ul></ul>
  17. 17. IP Mobility : Movilidad [1] <ul><li>1.      Forwarding Agent when a MH is foreign network </li></ul><ul><li>2.      Location Directory (LD), location information </li></ul><ul><li>3.      Address Translation Agent (ATA) </li></ul>
  18. 18. Metodo de Movilidad [1] <ul><li>Network-layer mobility is solved by registering in a centralized database of location, LD, which also solves problems of authentication, accounting, and authorization of mobile users in the network. However, network delays, time for authentication, and handoff render the packet-forwarding model unusable for fast moving hosts </li></ul>
  19. 19. All-IP Network [5]
  20. 20. Convergencia 2G/3G/LTE [3]
  21. 21. Movilidad 2G a 3G/4G LTE [3]
  22. 22. Comparacion entre LTE y otras tecnologias [4]
  23. 23. Requerimientos de LTE Peak data rate – 100 Mbps DL/ 50 Mbps UL within 20 MHz bandwidth. • Up to 200 active users in a cell (5 MHz) • Less than 5 ms user-plane latency • Mobility – Optimized for 0 ~ 15 km/h. – 15 ~ 120 km/h supported with high performance. – Supported up to 350 km/h or even up to 500 km/h. • Enhanced multimedia broadcast multicast service (E-MBMS) • Spectrum flexibility: 1.25 ~ 20 MHz • Enhanced support for end-to-end QoS 3GPP • OFDM (Orthogonal Frequency Division Multiplexing) • Frequency domain equalization • SC-FDMA (Single Carrier FDMA) • MIMO (Multi-Input Multi-Output) • Multicarrier channel-dependent resource scheduling • Fractional frequency reuse
  24. 24. De UMTS a LTE [6]
  25. 25. LTE – Arquitectura de Red [6]
  26. 26. LTE Interfaz de Aire – Air Interface <ul><li>Downlink (DL) : OFDM/OFDMA </li></ul><ul><ul><li>Orthogonal Frequency Division Multiplexing permite recibidores (UE) simples </li></ul></ul><ul><ul><li>Muchos sub-carriers </li></ul></ul><ul><ul><li>Seleccion de frecuencias por programacion (OFDMA o otros) </li></ul></ul><ul><li>Uplink (UL): Single Carrier – Frequency Division Multiplexing </li></ul><ul><ul><li>Power management y control mas eficiente </li></ul></ul><ul><ul><li>Al igual que OFDM require un FFT </li></ul></ul><ul><ul><li>El BW es dividido entre frecuencias pequeñas </li></ul></ul><ul><ul><li>Utiliza un “Guard” o “Cyclic Prefix – CP” </li></ul></ul>
  27. 27. Handoff – Senalizacion entre Celdas [4]
  28. 28. LTE – MIMO Antenas – PHY [5]
  29. 29. En Resumen [5]
  30. 30. References <ul><li>[1] Edwin Hernandez, PhD Dissertation, “Adapitove Mobility for Rapid Mobile Environments” </li></ul><ul><li>[2] </li></ul><ul><li>[3] </li></ul><ul><li>[4] </li></ul><ul><li>[5] </li></ul><ul><li>[6] </li></ul><ul><li>[7] </li></ul>