Next Generation G-PON

Yuanqiu Luo, Huawei

2FSAN NG-PON technology roadmap

~2010 ~2015

G-PON

1GE-PON

WDM option to enable to overlay/multiple

XG-PONs

Coexistence enables gradual migration in the same ODN.

NG-PON2E.g. Higher-rate TDM,

DWDM, CDM, OFDM, etc.

NG-PON1 incl. long-reach option

Cap

acity

XG-PON(Up: 2.5G or 10G,

Down: 10G)

NG-PONNG-PON

XG-PO

N1

XG-PO

N1

XG-PO

N2

XG-PO

N2

Hybrid D

WD

M/XG

-PO

NH

ybrid DW

DM

XG-PO

N

Higher rate TD

M

Higher rate TD

M

Higher rate EC

DM

Higher rate EC

DM

Higher rate O

FDM

Higher rate O

FDM

Other options

Other options

Extended XG-PO

Ns

Extended XG-PO

N

Higher rate D

WD

M

Higher rate D

WD

M

NG-PON1 supports the coexistence with G-PON on

the same ODN

NG-PON2 could be disruptive" with no

requirement for coexistence with G-PON on the same ODN

FSAN NG-PON taxonomy

FSAN and ITU-T Q2/SG15

Full Service Access Network (FSAN) An interest group for the world's leading telecommunications services

providers, independent test labs, and equipment suppliers to work towards a common goal of truly broadband fiber access networks

85 Members 31 operators, 46 vendors, 8 observers/test labs

ITU-T Q2/SG15 Question 2 of SG15, responsible for optical access networks

1997-2000, ATM-PON (A-PON), G.983 series 2001-2004, broadband PON (B-PON), G.983 series; gigabit PON (G-

PON), G.984 series 2005-2008, improved and extensive enhancement of G-PON 2009-2012, G.987/988 series (XG-PON) and other

FSAN membersVendors Vendors Observer/ITL OperatorsAdtran Marvell ETRI AT&T ADVA Maxim ICL/ITRI Bell CanadaAlcatel-Lucent Mitsubishi Iometrix British TelecomAlphion Motorola LAN BSNLBroadCom NEC NTT-AT China MobileBroadLight NeoPhotonics RITT China TelecomCalix Nokia Siemens Telcordia China UnicomCambridge Nortel Univ. New Hampshire Chunghwa TelecomComtrend Occam Networks CTBCCortina Opencon Deutsche TelekomECI Telecom OKI duEricsson Optical Zonu ETISALATFinisar Pannaway France TelecomFreescale Phyworks Korea TelecomFujitsu PMC Sierra KuwaitGemfire RAD LPTICHisense-Ligent TECOM NTTHitachi Tellabs Portugal TelecomHuawei TXP Corporation QwestJDS Uniphase Vitesse SaskTelLantiq Zarlink SingTelLG Nortel Zhone SK Telecom/SK BroadbandLS Cable ZTE Embarq/Sprint

Telecom EgyptTelecom ItaliaTelefonicaTelecom MalaysiaTelstraTelusVerizonVodafone

FSAN Next Generation PON Task Group

FSAN and ITU-T Q2/SG15

Mature technical spec in FSAN is delivered to ITU-T Q2/SG15

ITU-T Q2/SG15 drafts and standardizes PON spec

XG-PON Specifications

General Requirements

PHY and Reach Extension

TC Layer

OMCI

ITU-T Q2/SG15 G.987 Recommendation Series

NG-PON1 White Paper & XG-PON Contributions

G.987.1 for General

Requirements

G.987.2 for PHY and

RE

G.987.3 for TC Layer

G.988 for

OMCI

NG-PON1 candidate technologies

Physical split reduction (No new technology) WDM bidirectional split reduction (muxed G-PON) WDM downstream-only split reduction (stacked G-PON) XG-PON1: 10G down, Nx2.5G up XG-PON2: 10G symmetric Reach enhanced versions of the XG-PONs

The selection of XG-PON

1.2G 2.5G Nx2.5G 10G

Upstream

Downstream

1G

2.5G

10G

EPON

G-PON

10/1G EPON

10/10G EPON

Turbo EPON

XG-PON1

Nx2.5G

Nx1.2G

MuxedG-PON

Future Systems (NG-PON2)

StackedG-PON

(XG-PON2)

Acceptablebandwidth asymmetry

XG-PON Architecture

G-PON OLT

Central OfficeXG-PON OLT

10G Tx

2.5G Rx

WDM

ONUWBF

Single channel 10G DS, single channel 2.5G US TDM/TDMA Sharing ODN with G-PON

ONUTxRx

ONUTxRx

ONUTxRx

ONUTxRx

XG-PON wavelength plan

1260 1280 1300 1320 1340 1360

GPONup

XG-PONUp

1480 1500 1520 1540 1560 1580 1600 1620 1640

GPONdown

VidOvr

Guardband

Guardband

Guardband

XG-PON Dn

Coexistence with G-PON via WDM No interference on G-PON RF video channel

XG-PON layering structure

Physical media dependent (PMD) (G.987.2)Power budget, split ratio, distance, line code, line rate, wavelength, optical interface parameters

Transmission convergence (TC) (G.987.3)Scrambler, FEC, DS/US frame structure, DBA control, PLOAM, XGEM, ONU activation, Timing,

security, power saving, performance monitoring

XG-PON encapsulation method

(XGEM) client

Fiber media

Higher layers (frames/packets of Eth, TDM, SDH, IP, )

ONU management and control interface (OMCI)

(G.988)Management of equip, ANI & traffic, layer 2,

layer 3, Eth service, xDSL, TDM service, voice, home networks

XG-P

ON

Metrocore

Access

BRAS

CR CR

Service PoP

CO

SR

Metro Aggr

FTTB, FTTOFTTH, FTTC

FTTCell

Metroaggregation

XG-PON OLT

XG-PON for full service accessG.987.1

Physical media dependent (PMD) layer G.987.2

Item Description

Power budget Norminal (29dB, 31dB), coexistence with deployed B+ ODNExtended (33dB, 35dB), coexistence with C+ ODN

Line rate DS: 9.95328 Gb/s (10G nominal)US: 2.48832 Gb/s (2.5G nominal)

Line code Non-return-to-zero (NRZ)

Split ratio Minimum 1:641:128 &1:256 are of high interest

DistanceMaximum fibre distance is at least 20 kmTC layer supports maximum distance of 60 kmTC layer supports maximum differential distance up to 40 km

Transmission convergence (TC) layerG.987.3

Item Description

PHY adaptationFEC: DS RS(248,216); US RS(248,232)Scrambler: 58-bit frame-synchronous scrambling with preloadBurst profile: adapt to different bursts

XGTC framing DS & US frame, word alignment framing, enhanced PLOAM channel capacity, straightforward BWmap-based TDMA

Service adaptation XGEM: service data unit encapsulation and fragmentation (up to 16K byte PDUs, key index)Timing Time synchronization for mobile backhaul

Security Mutual authentication, unicast/broadcast encryption & key managementIntegrity protection for PLOAM and OMCI

Power saving Doze mode: ONU Rx alive, ONU optionally powering down TxCyclic sleep mode: In a cyclic sleep interval, ONU powers down Rx and Tx

ONU management and control interface (OMCI) G.988

Item Description

OMCI enhancement

Extending B-PON/G-PON OMCI to support larger PDUs for enhanced efficiencyExtending G-PON OMCI to support emerging services

Security improvement Strong mutual authentication and related management entities

Fault management Improved fault and failure detection/notification via OMCI

Implementers guide XG-PON interoperability, best practices of OMCI

XG-PON standard as a joint effort

G.987.1General

requirements

Anna Cui (AT&T), Fabrice Bourgart (FT), Junichi Kani (NTT)

G.987.2PMD & RE

Richard Goodson (Adtran), Joe Smith (ALU)

G.987.3Transmission convergence

Denis Khotimsky (Motorola), Yuanqiu Luo (Huawei),Hiroaki Mukai (Mitsubishi)

G.988OMCI David Hood (Ericsson), Wei Lin (Huawei)

Rapporteur: Frank Effenberger

(Huawei)

XG-PON standard progress

May2009 ITU-T G.987 series editorship announcement, G.987 scope and living list review

Sep.2009 G.987, G.987.1, G.987.2 consent

June2010 G.987.3, G.988 consent

ITU

-T Q

2/SG

15 s

tudy

per

iod

(200

9-20

12)

XG-PON field trial overview

XG-PON field trial performance

Verizon field trail in 2009 showed no major technical issues with XG-PON Detailed field trail results were jointly reported by Verizon and Huawei in

OFC2010 postdeadline paper Worlds First XG-PON Trial

Physical layer - Compliant XG-PON trial system meets G.987 specs on loss budget Wavelength: DS-1577.24nm (1577 nm), US-1268.8nm (1270 nm) Receive sensitivity: Meets G.987 specs

Throughput - Compliant Downstream = 10 Gbps, Upstream = 2.5 Gbps

ODN - Compliant Ranging distance up to 35km

Coexistence with G-PON - Compliant No interference between the XG-PON signal and the existing G-PON signal

RF video compatible - Compliant No influence/interference on Video service

Conclusions FSAN / ITU-T has thought long and hard over the next PON

Coexistence with current deployment is key

Cost effective bandwidth is the watch-word

XG-PON provides a good blend of characteristics Compatibility with G-PON and GE-PON

Higher bandwidth, with acceptable asymmetry

High loss budget capabilities

Low cost for equipment

Timeline Comprehensive standards completed by June 2010 (this month!)

First trial was in 2009 and showed no major technical issues

Significant deployments in 2012

Slide Number 1FSAN NG-PON technology roadmap FSAN NG-PON taxonomyFSAN and ITU-T Q2/SG15FSAN membersFSAN and ITU-T Q2/SG15NG-PON1 candidate technologiesThe selection of XG-PONXG-PON ArchitectureXG-PON wavelength planXG-PON layering structureXG-PON for full service accessG.987.1Physical media dependent (PMD) layer G.987.2Transmission convergence (TC) layerG.987.3 ONU management and control interface (OMCI) G.988 XG-PON standard as a joint effortXG-PON standard progressXG-PON field trial overviewXG-PON field trial performanceConclusions