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© Cortina Systems, Inc. 2013 All Rights Reserved 1Proprietary and Confidential

NGPON2 Introduction

Q2 2013

© Cortina Systems, Inc. 2013 All Rights Reserved 2Proprietary and Confidential 2© Cortina Systems, Inc. 2013 All Rights Reserved Proprietary and Confidential

Agenda

PON StandardsNGPON standard Progress in FSAN and ITU

• Requirements• Coexistence

NGPON2 technology introduction• TWDM-PON• WDM-PON• OFDM PON• XLG PON• Others

Summary


PON Standard


PON Standards

BBF

TR200 EPONTR156 TR167 TR142 PON

ONTManagement

WT277 WT278WT287

ITU-T/FSAN CCSA

E/GPON 承载多业务 EPON互通 10GE/GPON PON 节能 10G E/GPON光模块10G-GPON

G.984 1G GPON NG PON - G.987 NG

PON1 - NG PON2

IEEE

802.3ah 1G-EPON

802.3av 10G-EPON

SIEPON

http://www.fsanweb.org/default.asp

http://www.itu.int/net/home/index-zh.aspx

http://www.broadband-forum.org/index.php


Other PON Standards

CTC

EPON Spec 3.0 GPON spec 2.0

CUC CMC/电网 EPON SpecGPON Spec

EPON Spec

ATIS

OAN PON

SCTE/BRC

RFOG PON• Cablab DOCSIS• DPoE


NGPON2 Standard Progress


FSAN Introduction

The Full Service Access Network (FSAN) Group is an interest group for services providers and vendors to specify applicable standards. FSAN was started in 1995 FSAN has over 80 member companies representing the implementers, manufacturers, and test houses for PON Systems. FSAN’s significant works

GPON IOP XGPON1 requirements and standards XGPON1 IOP NGPON2 requirements


Relationship between FSAN and ITU

FSANDiscuss and specify

requirementsTechnology selection

ITUDiscuss technical details

Draft and release Standards

White PaperContribution


NGPON2 Motivation


Drive for NGPON2

Service drivers Growing bandwidth demandVideo evolution, video conference, Digital Home, Social networking, Cloud

Services, Gaming, P2P traffic End user requirements Backhauling

Network drivers PON upgrade path Simplification of operational processes Node consolidationPower reduction

Openness


PON Technology Migration

Year

0.15G

0.6G

1G

2G

10G

40G

1998 2004

A/BPON

GEPON

GPON

10GEPON

XGPON1

2010 ????

Future Coherent/

OFDM

TWDM-PON+ PtP WDM

DownstreamUpstream

Migration according to requirement,ODN coexistence , openBig split ratio， High bandwidth， Long reach， Power saving

100G

TDM-Based PON NG-PON2


NGPON2 Choices

Year2006 ~2010 ~2015

NGPON2>=40GDS Aggregated capability per feeder

ONU Substainable

XGPON1(US 2.5G;DS 10G)

GPON

FDM PONOFDM PONWDM PON

WDM-TDM PONWDM PON(colorless)-PS-ODNWDM PON(colored)-PS-ODN

WS-TDM PON

WDM PON(colorless)-WS-ODNWDM PON(colored)-WS-ODN

Coexistence

OLT&ONU Replacement

Modified ODN

CoexistenceEnables gradual migration from pre-existing PON systems over the same ODMOLT&ONU replacementEnables migration over a legacy ODN by a “complete” replacement of preexisting PON terminalsModified ODNSomething other than only power splitter ODM


NGPON2 Technology


TWDM-PON

TWDM-PON has been confirmed to be the main technology of NGPON2.

Time and wavelength division multiplexed PON 4 XGPON1 carried on 4 wavelength. 40G PON: 40G downstream; 10G upstream

Coexistence Current GPON and XGPON1 can have no change Can coexist with GPON and XGPON1

Key technology Tunnable receiver Tunnable filter


TWDM-PON Architecture

TWDM-PON reuses XG-PON technologies

Downstream multiplexing Upstream access techniques Timeslot granularity

Multicast capabilityBandwidth allocation mechanism.

OLT multiplexes and demultiplexes multiple wavelengths.

TWDM-PON

ODN

OLT

splitter

UNI

SNI

Access Network (AN) [ITU-T G.902]

MAC

ONU

MAC

ONU

MAC

ONU

MAC

ONU

MAC

WDM

M

UXW

DM

MU

X


TWDM-PON Wavelength Plan1

1260 1270 1280 1290 1300 1310 1320 1330 1340 1350 1360

1480 1490 1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600 1610

1575 1576 1577 1578 1579 1580 15811276 1277 1278 1279 1280

TWDM-PONdownstream

G-PON upstreamTWDM-PON upstream

G-PON downstream Video


TWDM-PON Wavelength Plan2

1280 1290 1300 1310 1320 1330 1340 1470 1480 1490 1500 1510

1547.87 15701557.361555.751554.13 1558.98

TWDM-PON downstream

G-PON downstreamG-PON upstream

127012601250

XG-PON upstream

1520 1544.381538.191536.611535.04 1539.77

TWDM-PON upstream

1580

XG-PON downstream


TWDM-PON Wavelength Plan3(Selected)


TWDM-PON Coexistence and Migaration

ONU XG-PONOLT

XG-PON

OLT TWDM-PON

ONU TWDM-PON

CO

OLT G-PON

ONU G-PON

Initially installed

removed

Newly installed

WDM


NGPON Standard G.989

20

G.989.2 - PMDG.989.1 - service

Architecture:• Backward compatible with G-PON,

XGPON1, with higher data rateNew concerns / Features• Security model and Proposal• Time Sync

ITU-TQ2/SG15

G.988 – G.OMCIG.989.3 - XGTC

PMD specifications (based on G.987.2, with changes)

Including PHY parameters and requirements

Extensions to G-PON TC layer Adaptation to new PHY requirementsMay be subject to changes after its first

version is published if necessary

Extensions to G-PON, XG-PON OMCI layerWill require extensive work to make sure that

nothing is broken and that references are properly handled in all documents


WDM-PON

Each ONU is served by one or more dedicated wavelengths.

A number of OLT Tx/Rx components map PON client signals onto separate wavelengths, which are multiplexed onto a shared, bidirectional fiber

Two kinds of WDM PONPoint to point WDM PONhybrid WDM PON : a wavelength (especially upstream) may be shared by two or more ONUs

A wavelength control block (λ control) may be present to control the transmitted and received wavelengths and the respectively connected ONUs.


WDM-PON Architecture

AdvantageHigh bandwidthNo DBA algorithm requirement

DisadvantageExpensive and very high power consumptionWavelength allocation

Key Technology Colorless ONU

IL FPRSOATunnable transmitter


OFDM PON

Orthogonal Frequency Division Multiplexed (OFDM)-PONReliant on electronic digital signal processing (DSP)

Compensate physical-layer impairments

bandwidth flexibility.S/P

M-ary QAM

L-pt. IFFT

AddCP

S/P

Binary data … … … … I

QDAC

ADCS/P …

S/P…

RemoveCP…

L-pt. FFT… FDE…

M-ary QAM

Binary data

I

Q


XLG-PON

Forty gigabit time division multiplexed PON (XLG-PON)Increase the downstream speed of a TDM PON from 10 Gb/s (XG-PON, ITU-T G.987) to 40 Gb/s (XLG-PON)

Key Issues Optical budget APD bandwidth Chromatic dispersion (CD) Electronic complexity at higher speed:

RX-APD TX-DFB

ONU XLG-PONOLT XLG-PON10 Gb/s, O-band

TX-EMLLogic

40 Gb/s, O-bandRX-APD

LogicWDM-XL

WDM-XL

SOA


Coexistence of XLG-PON

ONU GPON

ONU XGPON

ONU 40GPON

OLT GPON

OLT XG-PON

OLT XLG-PON

OLT video

WDM2-XG


Other PON Technology

UDWDM-PON

SS WDM-PON


Market Trend of Cortina


Market Trend of Cortina

T4 MKT status• We have win most of tier 1 vendors and will win more tier 2 vendors• We will focus on 10G ONU design win the next half of this year

T5 Development–- we continue to build XGPON IP –- continue to define and refine T5 as a product –- engaging key customers for T5 (H Z Juniper ALU Mitsubishi)–- we will wait until the right timing to launch product

10GEPON OLT

ZTEHuaweiFHASB


Summary


Summary

FSAN has decided the TDWDM-PON is chosen to be the main NGPON2 technology.

P2P WDM-PON will be used in little scenario.

G.989 is started to be drafted in ITU

The real application of NGPON2 will be after 2015

10GEPON and XGPON1 will be used as migration to the next generation PON, but they will last for long time.


Thank You

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