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Jeffrey Gao President of Transmission Network Product Line
OTN to CO, Key Implementation of Network Transformation
Page 2 HUAWEI TECHNOLOGIES CO., LTD.
Business Transformation Drive Network Transformation
Online Video Company
IT Transformation Network Transformation
Domain 2.0 Network Transformation
Network 2020
Centralization Cloud Computing Virtualization Big Data
Oct 2014
38M+ package with Netflix Jun 2015
BT Sports: the first 4K channel in Europe
Cooperation for better video service
Cloud Service Company
“The cloud platform is the key to drive network
transformation.” ——Reinhard Clemens / T-Systems CEO
Jun 2015
Launch public cloud services
Internet Company
Acquire FullScreen
? Sep 2013
Domain 2.0 May 2014
Acquire Direct TV Oct 2014
CUBE-Net
Page 3 HUAWEI TECHNOLOGIES CO., LTD.
During operator business transformation,
How does the transport infrastructure
evolve?
Page 4 HUAWEI TECHNOLOGIES CO., LTD.
1 4K FBB, 2K MBB, Cloud-based Leased Line as
New Services Drive “OTN to CO”
Page 5 HUAWEI TECHNOLOGIES CO., LTD.
Video Emerges as an Operator's Basic Service
China
China Broadband
(2020)
1 Gbit/s
50 Mbit/s Common
cities
Developed
cities
• Sichuan Telecom's all-
optical network covers
towns and cities.
• UHD 4K programs went
online on December 26,
2014.
Korea
• The top 3 carriers launched 4K programs in
September 2014.
• LGU+ 4K subscribers exceeded 120,000 in
March 2015.
• Dec 2014: Launch 4K channels
• June 2015: the 1st 4K channel
in Europe; Offering 4K BT
sports program
Europe
90% of users Digital Britain
1 Gbit/s
24 Mbit/s
Giga-city
(2020)
10 Gbit/s
1 Gbit/s
SKT
100%
U+
10 Super Cities
4K Video: 3 Challenges over Traditional Networks
Low Convergence
Video convergence is reduced
from 16:1 to 2:1
High Traffic
4K streams = 4 x HD streams Popular videos cause traffic
increased by 80%
One-Hop Reach
Content sources are as close as
possible to end users for better
viewing experience
Page 6 HUAWEI TECHNOLOGIES CO., LTD.
4K Videos Extend OTN Deploying to CO Nodes
“One-hop”
Architecture
PE
CR
ME2
ME1
BRAS
Access ring with lower convergence ratio
exceeds 100G.
Ensuring 30% traffic loading cause high
network Capex.
Service congestion may cause high latency
and packet loss rate.
16:1 2:1
CR
CO
BNG
“Content to Home”
over One-hop
CDN Server
Node-based Convergence
Architecture
Page 7 HUAWEI TECHNOLOGIES CO., LTD.
?
Convergence Access Core
GE Ring Networking
10GE Ring Networking
100GE Ring Networking
2K MBB: Frequent Network Expansion
3G
4G
4.5G
• 20 Mbit/s per site
• Cell-site spacing =1500m
New-built
• 200 Mbit/s per site
• Cell-site spacing =500m
• 450Mbit/s to 10Gbit/s per site
• Cell-site spacing <500m
Page 8 HUAWEI TECHNOLOGIES CO., LTD.
From “Ring” to “Tree” Topology for Smooth Expansion
“Ring topology” is based on bandwidth
sharing.
All services are forwarded site by site.
Therefore, burst services is easy to cause
congestion, resulting in high latency and
packet loss, that affects user experience.
“Tree topology” realize that one channel
(ODUk/wavelength) dedicated for each
aggregation site, that achieve “0” service
congestion without any packet loss, offering
best user experience
Meanwhile, microwave enter the 10G
bandwidth era by SDB technology. λ4
λ3 λ1
λ5
λ2
λ
6 λ7
1
5
2
6
3
Core layer Access layer Aggregation layer
4
7
Page 9 HUAWEI TECHNOLOGIES CO., LTD.
LTE/LTE-A: CPRI Fronthaul Emerges
BBU Cloud
COMP ON in BBU Cloud
LTE-A with CA
COMP OFF
LTE-A with CA
COMP ON
Edge performance: 0-50% 50%-100% 0%
? X2 latency
≈0
X2 latency
>0 CA=f1+f2+f3
f1+f2+f3
f1+f2+f3 f1+f2+f3
CRPI
•CPRI 5: 4.9 Gbit/s
•CPRI 7: 9.8 Gbit/s
In BBU Cloud, One Site = 3 Carrier x 3 Sector x 1 CPRI Interface
rate
= 9 x CPRI Rate
Install with RRUs
Full Outdoor
Page 10 HUAWEI TECHNOLOGIES CO., LTD.
“FO OTN” Serve for CPRI Fronthaul
Aggregation
node
BBU Cloud
CPRI Xpress - OSN810
Turbo technology: 20km transmission
distance for 100G
2x(10G components achieve 50G)
based on the ODSP DMT algorithm
1st Industry full-outdoor OTN device
RRU-like, IP65, –20℃ ~ +55℃, AC/DC
Mobile Fronthaul
All scenarios supported with 15
client interfaces
CPRI2~8, STM-1/4/16/64, GE, 10GE,
OBSAI 4x/8x with all topology such
as P2P, link, star, ring etc.
OSN1800II
OSN1800II
OSN1800V
f(Hz)
Power
Without Turbo
with Turbo
Baseband Spectrum
Invalid Spectrum
f(Hz)
Power
DMT Tech. transfer
invalid spectrum to valid
spectrum
Page 11 HUAWEI TECHNOLOGIES CO., LTD.
Cloud Service Requires Network Transformation
Enterprise
Fixed access
Wireless access
ONT
RRU
CPE EAD
OLT
BBU
IP network
Ethernet
Metro Regional BRAS
SR
EPC IP
Optical
BNG
…… DC
DC
DC
①
②
③ Subnet 1 Subnet 2
③
Multi-layer NMS
Internal DC Interconnection Public Cloud Leased Line
Network architecture designed for
traditional services cannot match
the DC-centric traffic feature of
cloud services. Front DC & CDN
Cloud computing center
Multi-vendor device interconnection
and manual cross-subnet
connection result in long service
TTM.
The network is complex to cause
long latency.
IP network
Ethernet
Vendor A Vendor B
① ②
③
Vendor A Vendor B
Transport network
(For operator) (For LL customer)
Optical
Page 12 HUAWEI TECHNOLOGIES CO., LTD.
China Telecom: Network Transformation
XX network
orchestrator
IP network
Transport
network
Metro Regional IDC/DC
Traditional OSS
Traditional NMS
Unified service orchestration/network orchestration system
APP … Third-party
APP APP …
YY network
orchestrator
2
1
XX network
controller
YY network
controller
Benefit:
1. Simplified DC-centric network architecture: Regional (Integrated architecture for national and provincial backbones) + Metro (one-hop architecture) improve
network flexibility, efficiency, TTM, and reduces latency.
2. SDN/NFV enables a unified and intelligent management platform. Central resource management implements multi-layer network synergy such as multi-vendor
IP+Optical or DC+Optical synergy.
Target: to serve self-operating cloud services and match
Internet OTT services
1. Simplified network: No. of NEs reduced by 60%
2. Fast services provisioning: service provisioning within
10 minutes
3. User experience: E2E latency less than 30 ms
BRAS
VAS
CPE
Service platform
IT system
Integrated national
and provincial
backbones
one-hop architecture
Cloudization/Virtualization Device
Orchestration
Open APIs 3
Page 13 HUAWEI TECHNOLOGIES CO., LTD.
2 SDN-Based SoftCOM as
New Technology Drive “OTN to CO”
Page 14 HUAWEI TECHNOLOGIES CO., LTD.
SoftCOM Architecture: “OTN to CO”
RRU
RRU
RRU
MxU
ONT
DSL
ONT
PON
WDM WDM WDM WDM
Metro
Eth Router Router
Metro
Eth
Metro Backbone
• SDN-based SoftCOM defines DC-centric network architecture for operators
• “OTN to CO” is a basic infrastructure of SoftCOM
Page 15 HUAWEI TECHNOLOGIES CO., LTD.
SKT 5G Network Architecture:
Distributed DC + SDN
Unified management and
control platform • SDN/NFV enable real-time E2E
service provisioning over multi-
layer & multi-domain
Distributed DC • Edge Clouds are deployed at
centralized place of 5G BBUs,
where OTN are deployed
IP + Optical synergy • According to 5G service
requirements, L2/L3 forwarding
path and L0/L1 one-hop path are
different
Page 16 HUAWEI TECHNOLOGIES CO., LTD.
Third-party SDN
controller
Multi-domain
management Application
model
Policy
management …… Orchestration layer
EMS/NMS
Traditional NMS
BoD Automation IP+optical OVPN
… …
Third-party app Application layer
SBI (PCEP)
NBI
SNC-T
controller
RESTful API
QX
Resource
management Path
computing Restoration
Service
configuration
BSS/OSS
Super controller
RESTful/RestConf
Huawei’s T-SDN Architecture
RESTful/RestConf
IDC
Enterprise Enterprise
Page 17 HUAWEI TECHNOLOGIES CO., LTD.
3 Simply Network to Reduces TCO
TCO Drives “OTN to CO”
Page 18 HUAWEI TECHNOLOGIES CO., LTD.
Network Upgrading & Simplification
Simplified Network
Large Bandwidth
Lower cost per bit
Better Experience
Decrease from 5 to 3 layers
Less CAPEX
Simplified O&M
Universal platform
Less OPEX ME1
ME2
ME1
ME2
ME1
BR
BRAS
ME2
CR
BRAS
CR
ME2
ME1
BR
Traditional Network
1. TDM networks exist for long-term
2. IP/ETH network based service forward node by node
STM-4
E1/STM-1
Universal platform with less layers
CO CO
CR CR
WDM/OTN
WDM/OTN
CO CO
BNG BNG
Enterprise DSLAM 3G/4G DC FTTx
STM-16
STM-64
GE
FE/GE
10GE
10GE
OTN to CO
Simplified Network
2G/3G Enterprise DSLAM
CSG
ASG
ASG
RSG
CSG CSG
Page 19 HUAWEI TECHNOLOGIES CO., LTD.
MS-OTN natively support SDH service
• Support E1/E3/STM-1/4/16/64 & VC grooming
• MS-OTN as a universal platform have less footprint and lower power consumption
“One-Stop”SDH migration platform – GNEEC Cloud
Data Collection and Analysis
for existing network
Assessment and optimization
for target network
Network Design
Integration & Testing
Rollout by MS-OTN
Migration Implementation
1 2 3 4 5 6
SDH Migration: MS-OTN + GNEEC Platform
0
5
10
15
20
25
Vendor A Huawei
Installatioin CommisioningData Processing
(Person*day) Example: 6 nodes ring migration
Migration Cost
Before
Spare Part
Maintenance
Electricity
Footprint
After
Spare Part Maintenance
Electricity
Footprint
70%
OPEX
Saving 4.8T VC4
80G VC12
2.56T VC
80G VC12 280G VC4
40G VC12
40G VC4
20G VC12
50%
Page 20 HUAWEI TECHNOLOGIES CO., LTD.
Summary: 3 Key Factors Driving “OTN to CO”
Traditional
Network
Existing
Network
Network
Transformation
2G/3G
PSTN
4G/4.5G
Fixed
broadband
Module
exchange
End
exchange
Tandem
office Toll office
BTS
NB
BSC
RNC MSC
eNB EPC
DSL
OLT CR IP Core BNG
RRU
Cloud core Cloud edge Access
155M 2.5G 10G 622M SDH
OLT
BBU
Area
DC
Center
DC Local
DC
New
Services
Large
Bandwidth Lower
Cost
New
Technology TCO
Video, Cloud LL SDN/NFV Network Simplification
“OTN to CO”
Fast
Provisioning
Page 21 HUAWEI TECHNOLOGIES CO., LTD.
“OTN to CO” Are Deployed/Deploying at Global
Copyright © 2016 Huawei Technologies Co., Ltd. All Rights Reserved.
The information in this document may contain predictive statements including, without limitation,
statements regarding the future financial and operating results, future product portfolio, new technology,
etc. There are a number of factors that could cause actual results and developments to differ materially
from those expressed or implied in the predictive statements. Therefore, such information is provided
for reference purpose only and constitutes neither an offer nor an acceptance. Huawei may change the
information at any time without notice.