OTN to CO,s3.amazonaws.com/JuJaMa.UserContent/53974803-2a79... · and manual cross-subnet ... BRAS VAS CPE Service platform IT system ... 3G/4G DSLAM DCFTTx Enterprise STM-16 10GE

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


During operator business transformation,

How does the transport infrastructure

evolve?


1 4K FBB, 2K MBB, Cloud-based Leased Line as

New Services Drive “OTN to CO”


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

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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


？

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


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


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


“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


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


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


2 SDN-Based SoftCOM as

New Technology Drive “OTN to CO”


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


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


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


3 Simply Network to Reduces TCO

TCO Drives “OTN to CO”


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


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%


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


“OTN to CO” Are Deployed/Deploying at Global

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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.

Documents

OTN to CO,s3.amazonaws.com/JuJaMa.UserContent/53974803-2a79... · and manual cross-subnet ... BRAS VAS CPE Service platform IT system ... 3G/4G DSLAM DCFTTx Enterprise STM-16 10GE