Next Generation Access Technologies

Next Generation Access Technologies

Broadband Properties SummitApril 28, 2009

April 28, 2009 BBP Summit: Next Generation Access Technologies 2

High Speed Data: What you’re doing today, but more of it– 100Mbps bi-directional already standard in Asia– 50Mbps tiers already available in North America– Rising popularity of user-generated video– Increased resolution of digital photography (photo

sharing)– Remote services (backup, on-line applications, etc.)– Video conferencing and video streaming

Why do we need Next Generation Access Technologies?


Video: IPTV– Successfully deployed throughout Europe– Gaining acceptance in North America– Multiple HD TVs in the home– More HD channels, more long tail content– More unicast demand (VoD, Network PVR)– HD Picture-in-Picture and trick modes create two to

three times the bandwidth demand– Interactive television applications (e.g. Blu-Ray 2.0)



New Applications– 3 dimensional television technologies have been

demonstrated (double the HD bandwidth requirement - minimum)

– Multi-channel DVR chipsets have already been demonstrated: Every Channel DVR (EV/DVR)

• Up to 100+ HD channels simultaneously

– Applications not yet imagined



In the future, homes will require several Mbps to Gbps of bandwidth

The only medium that can meet this demand is fiber optics

Fiber access technologies are mature and are advancing in speed regularly

The biggest question is not “Why?”, but “When?”

It’s Going to be Fiber


10G Passive Optical Networks

The standards bodies have agreed that 10G PON is the next step in PON evolution– Capitalizes on existing Ethernet and SONET technologies– Allows bursts in excess of 2.4Gbps– More efficient use of multicast/broadcast bandwidth– Smaller/lower power potential than multi-wavelength solutions

Both major standards bodies are working to ensure compatibility with existing PON– New wavelength plans do not overlap with existing plans– Current ONTs can already implement wavelength blocking based

on early IEEE and FSAN work


PON: Standards Bodies

From the folks that brought you EPON

Data-centric

Generally focus on physical layer and engineering design

Produce workable standards quickly

Largely an equipment / chip vendor community

From the folks that brought you GPON

Telecommunications focus

Attempt to standardize all of the layers from physical through management

Produce thorough standards slowly

Driven by the carriers with vendor participation

IEEE FSAN / ITU


Status– Physical layer complete (wavelengths, etc.)– Remaining sections largely complete– Chipsets available in early form now, final form in early

2010

Speed– 10Gbps downstream– 1Gbps or 10Gbps upstream

IEEE NG PON (802.3av)


Status:– Progress being made on the physical and coding layers– Much of the higher layers still being debates– Standardization expected to complete in 2010 or early

2011

Speed:– 10G downstream– 1.25G, 2.5G, and 10G upstream options

ITU NG PON (FSAN NGA1)


WDM PON

Popular in Korea, some initial forays into the U.S.Business case in the U.S. is as a logical point-to-point for enterprise customersWDM PON is not currently being considered by either the IEEE or FSAN/ITU NGA1


WDM PON

Multiple downstream wavelengths: one to every ONT or to groups of ONTsOne or more upstream wavelengths: shared or per ONTA logical point-to-point network

OLT Optics

TxTxTx

Tx

Wavelength

Splitter

Field OpticsONT

D1

U1 ONT

ONT

D3U3

ONT

D32

U32

CO

RxRxRx

Rx


When?

The standards bodies are focusing on the access lineOther technological advances will be required upstream

– Interface card capacities increased by a factor of 4– Backplane capacity increased by an order of magnitude– Switch chip capacity hugely increased– Upstream interfaces migrate from GbE to multiple 10GbEs per CO / switch– Faster processing, memory, QoS marking, etc.– Upstream network impact: ROADM, wavelengths, interfaces, core routers, etc.

Additional external pressures make the job more challenging– Lower cost– Less power consumption including coming ATIS energy efficiency standards– Smaller footprint

The point: Don’t expect a massive upgrade to NG PON as The point: Don’t expect a massive upgrade to NG PON as soon as the standards completesoon as the standards complete


While waiting for NG PON, what should a developer deploy today?Option 1: Current generation PON (GPON/EPON)– Current generation PON has plenty of bandwidth for

most applications today– The fiber infrastructure deployed today will work with

NG PON

Option 2: RFoG– Deploy fiber with an RF headend– Allows a fiber infrastructure to be deployed without

spending capital on headend upgrades

Conclusion: Deploy fiber today and you will not regret it in the future

Interim Steps


Thank You

Scott T. WilkinsonVP, Product Management and Systems Engineering

Hitachi Communication Technologies America, Inc.

[email protected]

Technology

Next Generation Access Technologies