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14:00 — 15:30 |
Opening Session
Session moderators:
Yoichi Maeda (ITU-T Study Group 15 Chairman) &
David Law
(Chair of IEEE 802.3 Working Group) |
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Opening: Yoichi Maeda (ITU-T Study Group 15
Chairman) |
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Welcome address: Reinhard Scholl (Deputy to
the Director, ITU-T TSB) |
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Welcome address: David Law
(Chair of IEEE 802.3 Working Group) |
Standards overviews of ITU-T Q.2/SG15: Dave
Faulkner (ITU-T Q2/SG15 Rapporteur)
Question 2/15 is entitled “Optical Systems for Fibre
Access”. Editors and members of this group have
recently revised Recommendations in the series
G.984.x on “Gigabit-Capable Passive Optical Networks
(G-PON)” and are planning an Amendment to G.985 on a
“100 Mbit/s point-to-point Ethernet based optical
access system” to allow silent start mode and are
planning G.gbe “1-Gbit/s point-to-point
Ethernet-based optical access system” in cooperation
with IEEE802.3. We will give an update on G.984.5
“Enhancement band for Gigabit capable Optical Access
Networks” and the recent Recommendation G.984.6 on
“G-PON optical reach extension”. We will show how
G.984.5 can be used to reserve spectrum for future
upgrade from G-PON to next generation optical access
systems without a break in service. |
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Standards overviews of IEEE802: David Law
(Chair of IEEE 802.3 Working Group) |
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15:30 — 16:00 |
Coffee break sponsored by IEEE |
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16:00 — 17:30 |
Session 1 - Operators’ deployment experiences
Session moderators:
Andrew Nunn (ITU-T Study Group 15 WP1 Chair) and
David Law (Chair of IEEE 802.3 Working Group) |
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Drivers for 10 Gbps PON – Victor Blake (US
Cable industry) |
NTT's FTTH deployment status and perspective
toward next generation; Yukihiro Fujimoto (NTT)
NTT has experienced a decade-long deployment of
commercial FTTH services for residential customers.
During this period, the access system development
was mainly focused on both system cost reduction and
transmission speed increment. Today, NTT has
deployed GE-PON as a mainstay system for FTTH and
served about 10 million lines. On the other hand, at
the time of such massive FTTH deployment, the
development of efficient OAM is becoming one of the
most important issues for the FTTH enhancements.
This presentation briefly reviews the history of
FTTH in Japan and explains the current status of
FTTH. For the next stage deployments, the required
FTTH enhancements are discussed. |
Verizon FiOS FTTP Deployment and NG PON Perspective - Martin Carroll (Verizon)
Verizon's ITU-T standards-based FTTP optical access
network (OAN) now passes over 10.4 million
residential and business premises within the service
footprint. FiOS services, enabled by BPON/GPON
technology, provide reliable voice, high speed data,
and video to a rapidly growing number of customers
that exceeded 1.8 million by the end of 1Q2008. The
ever increasing demand for bandwidth and
bullet-proof service delivery continues to drive
operators to optimize OAN strategies based on well
defined standards. Key aspects influencing Verizon's
OAN approach, technology decisions, and deployment
will be discussed. Perspectives on requirements,
issues, and migration paths related to next
generation OAN and PON will also be highlighted. |
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18:00 — 20:00 |
Welcome reception sponsored by MITSUBISHI |
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09:00 — 10:30 |
Session 2: Service and OAM requirements
Session moderators:
Dave Faulkner (ITU-T Q2/SG15 Rapporteur) and
Glen
Kramer (IEEE P802.3av Chairman) |
Requirements for Next Generation PON
– Junichi Kani (NTT) and Russel Davey (BT)
Next generation passive optical networks (PONs) are
expected to provide broader bandwidth than the
widely deployed gigabit-class PONs as well as
advanced functionalities to accommodate new
requirements in the full Fiber To The Home (FTTH)
era. Smooth migration from gigabit-class PONs is
another important issue. This presentation discusses
such general requirements that should be addressed
by future PON standards. |
End-to-end QoS for Ethernet & IP-Based
Services in NGNs: implications for NG Optical
Access
– Bernard Dugerdil (Freescale)
Access Network and Home Network are the most
difficult parts to achieve an end to end QoS. DSL
Forum (now broadband forum) and HGI (Home Gateway
Initiative) are working on these issues. Next
Generation Optical Access Network will have to reuse
a part of these works. Power consumption is an other
key elements for the definition of NG optical
Access. |
DBA & QoS on the PON - Commonalities with
Switching & Routing
– Howard Frazier (Broadcom)
Much has been written about providing Quality of
Service (QoS) guarantees in Passive Optical Networks
(PONs), with a focus on Dynamic Bandwidth Allocation
(DBA) mechanisms. There is also a large body of work
that has been performed in the Internet Engineering
Task Force (IETF) and the Institute of Electrical
and Electronics Engineers (IEEE) Standards
Association on the subject of QoS mechanisms at the
transport layer, network layer, and data link layer.
This presentation describes the work that is being
conducted in the IEEE 802.1 Audio Visual Bridging
Task Group to write standards for QoS mechanisms for
layer 2 bridged networks, including precise time
synchronization, transmission scheduling, resource
reservation, and clock distribution. |
| 10:30 — 11:00 |
Coffee break sponsored by IEEE |
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11:00 — 12:30 |
Session 3: Physical layer requirements for next
generation optical access
Session moderators:
Frank Effenberger (Huawei) and Howard Frazier
(Former IEEE 802.3ah Chair) |
Introduction to 10G-EPON PMDs – Marek Hajduczenia (Nokia-Siemens)
In March 2006, a new standardization project was
launched, focused on developing specifications for
next generation PHY for 10 Gb/s version of 802.3
EPON systems. Now, more than 2 years after the
initial Call for Interest (CFI), the 10G-EPON
802.3av Task Force is close to finalizing the
specification of the new set of PMD sublayers
supporting both symmetric (10Gb/s downstream and
10Gb/s upstream) as well as asymmetric (10Gb/s
downstream and 1Gb/s upstream) operation, with the
supported Channel Insertion Loss (ChIL) spanning
from 20 dB for PR10/PRX10, through 24 dB for
PR20/PRX20 ending with a new power class with 29 dB
ChIL referred to as PR30/PRX30. In this presentation
we will look therefore closer at the individual PMDs
standardized in the 802.3av project, with the
special focus on their major physical parameters,
construction of individual power budget as well as
dual rate burst mode operation required for
coexistence with legacy EPON systems on the same PON
plant. |
Physical layer requirements for smooth migration from the current FTTH – Hiroaki Mukai (Mitsubishi)
In recent years, with a growth of Broadband Internet
Access demands, the number of FTTH (Fiber To The
Home) subscribers has been increasing. In PON
(Passive Optical Network) system, a single optical
subscriber line is shared by multiple subscribers.
PON is widely deployed as a cost effective optical
subscriber network. The transmission capacity of PON
tends to follow the evolution of Ethernet
transmission rate. In the future, the demand for
Next Generation PON which has larger capacity than
current PONs is expected to be increased. Because
PON is point to multi-point network, the method for
equipment upgrade will not be simple. Moreover,
physical layer specification for Next Generation PON
and its migration scenario are related to each
other. Service outage, installation cost and
equipment cost should be considered. This
presentation will look at the method of Next
Generation PON migration, then, give a consideration
on its physical layer requirements. |
Enhancing PON capabilities using the wavelength domain – Thomas Pfeiffer (Alcatel-Lucent)
In today’s PONs the wavelength domain is only partly
being exploited, namely for separating the
downstream from the upstream direction, for RF video
overlay and for enabling coexistence with 10G
solutions in the near future. The wavelength domain
will, however, increasingly be considered for
further enhancing the PON’s capabilities in terms of
service offerings, capacity and link configuration.
This presentation will highlight several aspects on
technological and architectural level that need
careful consideration when entering the wavelength
domain in PON. In particular the trade-offs between
channel allocation schemes, component availability
and cost will be addressed, as well as operational
aspects like WDM channel provisioning and optical
path supervision. |
| 12:30 — 14:00 |
Lunch break |
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14:00 — 15:30 |
Session 4: Transmission mechanisms of optical
access
Session moderators:
Sam Sambasivan (AT&T) and Yukihiro Fujimoto (NTT) |
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IEEE 1G and 10G EPONs: Factors that Influenced the Architecture and Specification – Glen Kramer (Teknovus) |
Consideration for possible synergies between next generations ITU-T GPON and IEEE EPON – Leopold Diouf (Alcatel-Lucent)
ITU-T GPON and IEEE EPON both address optical
wireline access broadband technologies. ITU-T GPON
is mainly deployed in ANSI and ETSI whereas EPON
deployment is mainly concentrated in Asia Pacific.
These two technologies rely on different physical
layer specifications with the immediate impact of
dividing the overall volume of the optics components
and leading to non-cost optimum optics for both GPON
and EPON.
This presentation attempts to provide a rational for
possible synergies between ITU next generation GPON
and IEEE next generation EPON in order to achieve
maximum volume for optimum next generation PON cost.
Such synergies will elaborate on the optics
specifications, the upstream line rate, the TC/MAC
layer, and the line coding. |
Inter-connected Concepts: Towards a Common PON System – Frank Effenberger (Huawei)
The current generation of PON has seen widespread
acceptance and deployment, despite the fact that
there are two incompatible families of standards.
Looking ahead, the next generation of PON appears to
be very challenging in terms of cost-effectiveness,
and fostering a single market will be more
important. In addition, the continuing convergence
to an all-IP network makes a single PON system more
attractive from the user’s perspective. The time is
right to consider the path towards a common PON
system.
This paper briefly reviews how we got to where we
are, and then compares EPON and G-PON systems. The
two systems have a tremendous similarity; and what
it more, the major differences are linked to the
1Gb/s generation. So, it seems that the 10Gb/s
symmetric systems being discussed in both the IEEE
and ITU can be quite the same. It is also possible
that an asymmetric XG-PON system may emerge as a
more cost effective alternative where symmetric
capacity is not needed.
Beyond the transport layer, there is a great
opportunity to produce common descriptions of the
higher layer functions such as DBA, PON management,
and layer 2 service models. The resulting common
operational structure will promote a single market
at all levels in the value chain, and bring
development costs down. For this reason, the IEEE
and ITU PON standards should harmonize wherever
possible. |
| 15:30 — 16:00 |
Coffee break sponsored by IEEE |
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16:00 — 17:30 |
Session 5: Interplay between optical access
technologies and solutions
Session moderators:
Jun-ichi Kani (NTT) and Lowell Lamb (Teknovus) |
Optical component technology review and
future trends; David Li (Ligent Photonics).
This presentation will review the technologies on
both the key optical and electrical components
available for the PMDs in the current optical access
networks including the EPON, GPON, and 10GEPON
applications. We will describe the challenges in the
optical components for the next generation PONs.
Possible scenarios that combine the various
component techniques for the NGA will also be
presented. |
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Overview of mass-market silicon development economics –
Denis Beaudoin (Texas Instruments) |
P-P Ethernet OAN enhancement – Makoto Kadowaki (NEC)
This presentation will provide a scope of
specifications and an overview of the current status
of study for 1Gb/s P2P Ethernet access.
Authors believe that the Ethernet access system is
one of the strong solutions for the broadband
services; however the existing specifications are
not enough to cover all of the requirements for the
access system due to its limited loss/distance
budget as well as OAM functions. The scope of our
study is supposed to include optical interface
specifications with enough reach, OAM specifications
providing an extension mechanism, Silent start
function to avoid interference to PON system by mis-connection
of P-P Ethernet system and Power saving function
from demand for the Global warming issue.
As to the optical interface specifications, three
budget classes and specific budget values for each
class are introduced. The three classes will be
defined for transmission of 10km, 20km and 30km
respectively.
As to the OAM specification, the OAM based on the
IEEE802.3 Clause 57 can be applied to Link layer
management and new OAM using OMCI will be introduced
to ONT management. |
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17:30 — 18:00 |
Closing session
Session moderators:
Yoichi Maeda (ITU-T Study Group 15 Chairman) &
David Law
(Chair of IEEE 802.3 Working Group) |
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Brief reports by all session chairs,
Identification for collaboration and Wrap-up
discussion
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