Introducción a Tecnologías PON: Comparación entre GPON y EPON

Introducción a Tecnología PON Francisco Apablaza M. fam Abril de 2008

Diferencias de xPON Objective Supporting Functionality GPON EPON High Speed Internet & TV Capacity >70 Mbps/user <30 Mbps/user Bandwidth Efficiency Downlink:94% Uplink:92%-93% Downlink:73% Uplink:61%-69% RF overlay Standardized No or Proprietary Fragmentation Standardized No Telephony, TDM, real-time Dynamic Bandwidth Allocation Standardized Proprietary Fixed framing Yes, 125  s No Secure Services Encryption Standardized AES No or Proprietary ONT management Management & Control Interface Standardized OMCI Partly standardized. Proprietary needed. Multi vendor Industry Driven Interop Yes No

Protocolos x-PON BPON GPON UIT EPON-GEPON IETF http://www.aptsec.org/meetings/2005/WS-BHT/Files-pres/WS-19%20050901%20NTT%20H019-APT(HS%20access1).ppt ATM frame base Generic frame base Ethernet frame base AAL1/AAL2 AAL5 TCP+UDP etc. IP Ethernet Layer 2 Layer 3 Layer 4 Layer 5 or more Layer 1 ATM cell PON-PHY T1/E1 TDM POTS Video Data TCP+UDP etc. IP Ethernet Generic frame T1/E1 TDM POTS Video Data TCP+UDP etc. Ethernet frame T1/E1 TDM Video Data IP POTS VoIP VoIP VoIP

Diferencias: Eficiencia Ancho de banda ,[object Object],[object Object],Downstream GPON is very efficient EPON GPON 25% 50% 75% 100% Scheduling OH: control message Payload encapsulation OH Line Coding Payload Upstream EPON GPON 25% 50% 75% 100% Scheduling OH: frame delineation Scheduling OH: PHY burst OH Scheduling OH: control message Payload encapsulation OH Line Coding Payload

Diferencias: eficiencia BW del servicio final ,[object Object],[object Object],GPON 73 Mbps per user (*) EPON 29 Mbps per user (*) or EPON is already at its limits GPON has future proof capacity ,[object Object]

Diferencias (Seguridad) GPON EPON ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Diferencias: alcance de cobertura

Effective Bandwidth / Architecture ,[object Object],EPON OLT ,[object Object],[object Object],[object Object],[object Object],PONs 4 x 1Gbps n 1 Typically 16-32 x 2.5Gbps ,[object Object],[object Object],[object Object],PONs 16 1 Edge2000 OLT 8 x 1Gbps

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],GPON v/s EPON Diferencias: resumen

Porqué GE-PON ? 1 de 3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Dispone de Business Class Services: clientes corps y empresas

Porqué GE-PON ? 2 de 3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Servicios TDM Empresas

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],...... ¿ Decisión? ¿trial con GPON y GEPON? Porqué GE-PON ? 3 de 3

Topología típica de Acceso Alcance: 20 Kms, depende de budget de potencias

Compara Tecnología PON-FTTH P. Ej.: cable de 24 ff = 12 servicios P. Ej.: cable de 24 ff = 32*24 servicios Optical Network Terminal (ONT) Splitter Optical Line Terminal (OLT) Transmit Receive Subscribers Point-to-multipoint (p2mp) Passive Optical Network 1:32-64 ,[object Object],[object Object],[object Object],[object Object],Aggregation Transmit Receive Customer Premises Equipment (CPE) Point-to-point (p2p) Point-to-Point 1:1

Tecnología de Transmisión ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cobertura Acceso pasivo multiplicando FO

Split Ratio and dB Loss: teórico

Split Ratio and dB Loss: práctico

Loss Budget - Example OLT V-OLT ODF In Out Patch Panel ONT 1:32 20km +2dBm 1dBm +18.5dBm +19.5dBm 0dBm +17.5dBm -17.5dBm -0 dBm -25.5dBm -6 dBm 1dB 1dB 17.5dB OSP 8dB over 20km 0.35dB loss per km WDM Splitter - 1.490nm Optical Power Level - 1.550nm Optical Power Level: “señal RF” - Element Insertion Loss

Aplicaciones Backhaul ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Aplicaciones Backhaul ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],edge2000 Up to 32 ONTs Communications Network Operations Center Cellular Backhaul Fixed Wireless Backhaul BPL Backhaul Mobile Wireless Backhaul

Aplicaciones Also: WiMax, WiFi, Cellphone equip. Video surveillance Data Transport VDSL DSL BPL switch Mini MDU 2 – 4 homes Up to 4 POTS lines IP or RF Video Up to 100Mb data service Single Family Home

MGCP Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

SIP Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Topología propuesta para el TRIAL Hacer sinergia con anillos backhaul MiniDSLAM CPE PON MPLS SSPP DSLAM PCS

Metodología de cálculo ,[object Object],[object Object],[object Object]

Proveedores ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Condiciones generales de un trial: 1 OLT con cap Anillo y un par de CPE c/caso

Entregables: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introducción a Tecnologías PON: Comparación entre GPON y EPON

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