MEF Mobile Backhaul for NXTcomm08 - Wed 06-17-2008 Final1

8/14/2019 MEF Mobile Backhaul for NXTcomm08 - Wed 06-17-2008 Final1

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Carrier Ethernet

for Mobile Backhaul


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Topics Carrier Ethernet for Mobile Backhaul

Current status and trends

Activating Carrier Ethernet for Mobile

Backhaul

Issues and Solutions for Mobile Backhaul

MEFs role in enabling Mobile Backhaul

infrastructure deployment

Questions from the Audience


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3

Panel Members

Eitan Schwartz

VP, Pseudowire and Ethernet AccessRAD Data Communications

[email protected]

201-378-0311

Andrew SachsDirector of Solutions Strategy

JDSU

[email protected]

301-455-5277

Ioannis Kanellakopoulos, PhD

CTOActelis Networks

[email protected]

Tel: +1-510-545-1035

Hossam SalibSVP Marketing/PLM

CO Founder, Aktino

[email protected]

949 258 0545 x226
http://www.rad.com/http://www.jdsu.com/index.html


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Carrier Ethernet

for Mobile BackhaulCurrent Status and Trends


CO Founder, Aktino

[email protected]

949 258 0545 x226


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Mobile Backhaul Trends

Over 2.5 billion mobile phone users in

2006, growing to 3.6 billion in 2010 Growing dependence on mobile connection

Data and video mobility for all

Growing Data & Video more asymmetrical

Traffic grows exponentially,ARPU/revenue does notThe #1 driver for new backhaul technologies

Carrier Ethernet for backhaul

Ethernet microwave Wireline Ethernet copper, coax, fiber, DOCSIS,

DSL, PON

Source: Infonetics Research, 2008


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Mobile Backhaul Has Dynamic Growth

Symmetrical BW

required for existing

2G/3G traffic

Growing Data & Video

more asymmetrical

9/06 7/07

Movies, music, news, more

music, text, web, more content ..

Legacy TDM


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Industry trends

Demand for bandwidth will grow

disproportionately

more than

revenue for the

operator

The bandwidth increase will

primarily be on Best Effort data

user services, and driven by flat

fee business models

Search for technologies to

provide cheaper and more

effective ways to meet the

capacity grow at a lower CAPEX

and OPEX

Evolution towards Ethernet/IP

based mobile solutions

Revenues

Traffic

Gap between trafficGap between traffic

and revenue

increases

Gap between traffic

Data Dominant

Gap between

traffic and revenue

increases

Revenues

Traffic

Gap between trafficGap between traffic

and revenue

increases

Gap between traffic

Data Dominant

Gap between

traffic and revenue

increases

Voice Dominant

Source: Light Reading


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RAN Backhaul Bandwidth issues..

Mobile Cell Site Today

VZW 5 T-1s

Sprint 5 T-1s

AT&T 6 T-1s

T-Mo 2 T-1s

Today

Very Soon

Mobile Cell Site

VZW

Sprint

AT&T

T-Mo

VZW 60 Mhz = 120Mb

Sprint 140 Mhz = 280 Mb

AT&T/ Cingular 80 Mhz = 160Mb

T-Mo 50 Mhz = 100Mb

Total Average Cell SiteBandwidth utilization18+ T-1s or 27+ Meg

Today Spectrum is chopped upfor use in various inefficient

radio technologies. This limitsthe RAN backhaulrequirements.

New radio technologies get 2 bits per HzMore purchasable spectrum availableIncreased data demandGreatly increase RAN backhaul needs. 660 Meg potential

backhaul requirementsAND GROWING

As more Spectrum isauctioned off and radio

systems become moreefficient.

-100 meg or more per cellsites requirement will startin 2008-9

Spectrum and Mobile providerspotential

VZW 60 Mhz = 7.5 Mb

Sprint 140 Mhz = 7.5 Mb

AT&T/ Cingular 80 Mhz = 9 Mb

T-Mo 50 Mhz = 3 Mb

Older Radio Technologygets .5 to 1 bits per Htz and muchSpectrum is unused


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Carrier Ethernet

for Mobile BackhaulActivating Carrier Ethernet for Mobile

Backhaul


JDSU

[email protected]

301-455-5277
http://www.jdsu.com/index.html


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What the Wireless Carriers are Thinking about

Migration to IP

WiMax & LTE are all IP CDMA is moving there rapidly UMTS 3G is moving to IP via ATM, Ethernet Radios

this year Cell Site equipment & Mobile applications being

designed forIP Circuit Emulation to sustain TDM infrastructure

Bandwidth Growth Need to plan for15 to 20 times

the growth of bandwidth and systems over the next 5

to 8 years. Mobile operators are looking to Lower Costs

Broadband costs less per bit than T1 Reduce the amount of systems -- simplify


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Worldwide Mobile 1st Mile Backhaul Service Charges perConnection:

PDH and ATM over PDH vs New Wireline

$37,044

$6,887

$0

$10,000

$20,000

$30,000

$40,000

CY05 CY06 CY07 CY08 CY09 CY10

Calendar Year

Revenue

PDH and ATM over PDH

New wireline

Ethernet Options Solve Backhaul Cost Problem

PDH (T1/E1 etc.) costsclimb directly with

bandwidth

Ethernet wireline costs

grow gently with large

bandwidth increases(Eth, DSL, PON, cable)

New IP/Ethernet

wireline options to

satisfy the the #1

investment driver:operational cost

savings

Source: Infonetics Research Mobile Backhaul Equipment, Installed Base, and Services, 2007

Stay on PDH

Ethernet


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Mobile Backhaul Options

GigE

EoSONET/SDH

10/100BT

100BT

100BT

WDM

100BT

EoT1/DS3

1000BT

GBE

Direct

Fiber EoDO

CSIS

Leased

Ethernet

LeasedT1/D

S3PON

RAN

NC

ADM

Service

Provider

Network

Mobile backhaul Ethernet can be delivered over a

variety of access technologies

nxT1

Radio


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Progression to an All-Packet Network

2G/2.5G 2G/2.5G TDMTDMGSM/GPRS, TDMA, CDMAGSM/GPRS, TDMA, CDMA

3G/4G 3G/4G Ethernet/IPEthernet/IPUMTS rev. 5&6, CDMA 1X EV-DO,UMTS rev. 5&6, CDMA 1X EV-DO,

WiMax, UTRAN LTEWiMax, UTRAN LTE

Base Station Interfaces

3G 3G ATMATM

UMTS Rel. 99UMTS Rel. 99

Backhaul

Infrastructure

ATMATM

Ethernet/Ethernet/

IP/MPLSIP/MPLS

PDHPDH

SDHSDH

Benefits: Scalable bandwidth, OpEx savings with fast ROI, future proof architecture

Challenge: Precise timing over asynchronous packet networks, OAM, availability ofhigh speed links (fiber)

Ch ll d R i t


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Challenges and RequirementsTransport Providers and Mobile Operators

Transport providers are trying to:

Support multiple operators at the same tower

Accurately and independently regenerate timing per mobile

operator

Deliver quality service (low latency, jitter and packet loss) Support variety of cellular protocols with TDM, ATM and

Ethernet interfaces

Provide diagnostic tools to operator, such as in-band facility

loopbacks Find hardened units for use in compact outdoor cabinets

Ch ll d R i t


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Challenges and RequirementsTransport Providers and Mobile Operators

Mobile operators are looking for flexible equipment

that can:

Take advantage of the lowest cost, highest bandwidth

access networks

Optimize usage of access links with intelligentoversubscription, idle flag suppression, Abis optimization,

DBA, per VC switching, etc.

Detect faults and network degradation (excessive latency,

jitter, etc.) Monitor performance to ensure SLA guarantees are met


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Carrier Ethernet

for Mobile BackhaulIssues and Solutions for Mobile

Backhaul

Eitan SchwartzVP, Pseudowire and Ethernet Access

RAD Data Communications

[email protected]

201-378-0311
http://www.rad.com/


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Mobile issues SLAs and PM

Service performance and SLAs

Delay, delay variation and timing are key for Mobile backhaul

Metro Ethernet Forum (MEF)

Recommended key parameters for SLAs MEF 10.1

Service availability, frames lost, frame delay, frame delay variation

Defined the what, not the how

RFC-2819 - RMON Etherstats

Monitoring of local performance (eg node or LAN)

Y.1731/802.1ag

Focused on end to end service (WAN)

Includes both monitoring and test

Frame delay, frame delay variation, frame loss ratio

Diagnostics

Ethernet Frame loss, latency & throughput using RFC-2544 and MAC swaploopbacks

Circuit Emulation using ANSI T1 403 inband facility loopbacks


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Circuit Emulation / Pseudowire technology enables legacy migration to

packet-switched networks (IP, Ethernet, and MPLS).

MEF-8: IA for the Emulation of PDH Circuits over Carrier Ethernet

MEF-18: Abstract Test Suite for Circuit Emulation Services

Pseudowire challenges:

Packetization and Encapsulation of TDM Traffic

Attenuate Packet Delay Variation (PDV or Jitter) Compensate for Frame Loss and Out-of-Sequence Packets

Recover Clock and Synchronization

PWE3 #1

PWE3 #2

Pseudowire

Enabled EDD

TDM, ATM

FR, etc.

Legacy

Service

Pseudowire

Legacy Emulated Service

Legacy

Service

Tunnel

DSLAM

BTS

PBX

BSC/RNC

PBX

BRAS

TDM, ATMFR, etc.

Support for Legacy Services over Ethernet

Carrier EthernetPseudowire

Enabled EDD


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Synchronization Over Packet Switched Networks

2G/2.5G/3G require accurate frequency reference:

GSM (50ppb), UMTS (16ppb) CDMA (uses GPS receivers)

Ideally holdover of 16 ppb 1 ppb of aging per day

Recovered clock at the cell site should conform to ITU-TG.823/G.824 Sync interface using G.8261-defined scenarios

Multiple Timing Domains

System timing with master and fallback sources

Packet

Switched

Network

3G Node B

2G BTS

IMA or OC-3/STM-1

E1/T1 TDM

FE

3G RNC

2G BSCGbE

Synchronization InformationG.823/824

Compliant Clock

Primary Reference

Clock (PRC)

OC-3/STM-1

Ch.OC-3 /DS3

Ch. STM-1

PWE3PWE3


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Mobile Backhaul Synchronization over Ethernet

Cellular base stations of any generation (2G, 2.5G and3G) require a highly accurate frequency reference

The possibility of deriving transmission frequencies from this reference

Lengthy synchronization procedures between cells (for hand-off) when their

clocks are not sufficiently similar

CDMA over Ethernet From a timing point of view, this is relatively straightforward since CDMA uses

GPS receivers at each cell site

Therefore each base station is effectively self synchronizing with masterclocks in the GPS Satellite network

GSM, W-CDMA and UMTS over Ethernet

Base stations rely on a recovered clock from the T1/E1 leased line ormicrowave link to which they are connected

50 parts per billion of frequency error is required to support the GSM handoffmechanism as mobile stations wander from one cell to the other.

With UMTS, the clock should have frequency stability of less than 16 ppb


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Primary Synchronization Methods

Adaptive Clock is distributed over the PSN as TDM stream and is adaptively

recovered solely using time-of-arrival information The format of the clock stream is a standard PWE3 flow, so

interoperability with 3rd party vendors is simplified

Independent of the physical layer

IEEE 1588v2 Time and frequency distribution protocol based on time-stamp

information exchange (similar to NTP)

If the PSN network elements do not support 1588, then 1588 andadaptive deliver the same frequency recovery performance

Note that 1588 is just the packet format; what is critical is the clock

recovery algorithm, which is not standardized ITU G.8261 (Synchronous Ethernet)

Uses the physical layer of Ethernet for accurate frequency distribution

Unaffected by network impairments (e.g., PDV, Packet-loss, etc.)


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Reduce transport costs by migrating 2G/2.5G, 3G and 4G

to scalable, lower cost, higher bandwidth Ethernet

Carrier Ethernet can provide Mobile Backhaul

Mobile Core Network Radio Access Network

Pseudowire

2G/3G/xG

Base StationsAggregation

Traffic

Optimization

TDM/ATM/IP

Backbone

MSC

MSC

Voice

Trunking

MSC

Carrier

Ethernet

BSC

RNC

Wireless

Intelligent

Demarcation

Node-B

/ BTS/

WiMAX

Node-B

/ BTS/


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4G

Example: WiMAX Backhaul over Ethernet with QoS

Ethernet

/ MPLS

PE

Transport Network

3

rd

Party Transport Provider

CESR

OAM

Edge-to-end

FE /

GbE

WiMAX

Aggregator

NMS

Test

Head

WSC

BS

HUB

Traffic Classification, Policing, Scheduling, Shaping OAM for non-intrusive monitoring of Connection (CFM) and Performance (PM)

MAC swap loopbacks for diagnostics tests and performance monitoring Hub locations: Oversubscription and shaping to 3rd party networks CIR/EIR

BS

Remote

Cell Site BS

Remote

Cell Site

BS

Remote

Cell Site

BS

HUB

Segment 1

Segment 2

Segment 3

SLA monitoring and diagnostics


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Carrier Ethernetfor Mobile Backhaul

MEFs role in enabling Mobile Backhaul

infrastructure deployment

Ioannis Kanellakopoulos, PhDCTO

Actelis Networks

[email protected]

Tel: +1-510-545-1035


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Mobile Backhaul Implementation Agreement

MEF Mobile Backhaul Standardized services

Certification

Interoperability UNI Requirements

Ethernet OAM (Link OAMand Service OAM)

Protection and FaultRecovery Requirements

Service Requirements CoS Requirements

Service Definitions

Synchronization

RAN / BSC

BTS/NodeB

BTS/NodeB

Carrier Ethernet

Network

UNI

UNI

UNIEVC

The structure of the document provides generic guidelines

for several mobile technologies specific guidelines for a

given mobile technology may also be specified


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Legacy

Todays Mobile Backhaul MEF Use Cases

Legacy Transport

Legacy RAN Legacy RAN

The Implementation Agreement identifies four generic

deployment scenarios that capture the main short termand long term deployment possibilities

Legacy = non-packet RAN and non-packet transport


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Packet offload over carrier Ethernet 1a

Overlay MEN does bandwidth offloading onto Ethernetservices

Legacy network continues to transport voice and deliver

timing

Legacy Network

Carrier Ethernet NetworkGeneric

Interworking

Function

Generic

Interworking

Function

UNI UNI

RAN BTS

RAN NC

Legacy

C


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Emulation over Carrier Ethernet 1b

Carrier Ethernet NetworkGeneric

InterworkingFunction

Generic

InterworkingFunction

UNI UNI

RAN nodes with legacy interfaces transport all trafficover Ethernet services using emulation technologies

RAN BTS

RAN NC

Legacy

RAN d l k 2


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RAN dual stack 2a

Legacy Network

UNI UNI

RAN nodes are equipped with Ethernet and legacyinterfaces

Overlay legacy network transport voice and delivers

sync; MEN is used for BW offloading

RAN BTS

RAN NC

Legacy

Eth/IP

Carrier Ethernet Network

F ll Eth t BTS d T t N t k 2b


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Full Ethernet BTS and Transport Network 2b

UNI UNI

New RAN nodes with native Ethernet interfaces All traffic is transported over Ethernet services

RAN BTS

RAN NC

Eth/IP

Carrier Ethernet Network

Separation of Voice and HSPA Data over Ethernet / IP


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Separation of Voice and HSPA Data over Ethernet / IPUse case 1ab and 2ab example

TDM or ATM

Backhaul

N*E1 ATM/IMA

or STM1/VC4

Node B / BTS Ethernet/IP/MPLS/PWEBackhaul

T1/E1/ orATM

Aggregation

FE / GE

Aggregation

Cell Site

FE/GE

Ethernet / MPLS

All-IP

RNC/BSC

RNC/BSC

FE / GE

Aggregation

N*T1/E1 ATM/IMA

or STM1/VC4

N*T1/E1TDM

Node B / BTS

Node B / BTS

ATM PW Trunk

TDM PW Trunk

Ethernet PW Trunk

Node B / BTS

FE / GE

Data

Voice

Pico/Femto

Wi-Max

DSL/GPON

Ethernet

Use Case 1a

Use Case 1b

Use Case 2a/b same as 1a/b except

BTS/NodeB have Ethernet Interfaces

MEF 18 C tifi ti f M bil B kh l CES


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MEF 18 Certification for Mobile Backhaul CES

MEF 18 provides standard testing of Circuit Emulation

Services over Ethernet Speeds implementation and enables full inter-operability

334 ground breaking tests and certifications in the suite

MEF 18 has many applications but is key to Mobile BackhaulMobile Backhaulmigration strategiesmigration strategies

Lead by strong service provider demand

Industry first impairment testing brings first test ofemulation of clock recovery

Raise the level of confidence that clock recovery will

meet the stringent requirements of mobile backhaul.

Cl i


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Closing

Carrier Ethernet is in demand for Mobile

Backhaul

There are Ethernet deployment options for all

mobile backhaul situations

Carrier Ethernet technology is rising to meet thestringent technical and operational requirements

of Mobile Backhaul

The MEF is working in conjunction with other

standards organizations to ensure that scalable

solutions are available

P l M b Q&A


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Panel Members Q&A

Eitan Schwartz

VP, Pseudowire and Ethernet AccessRAD Data Communications

[email protected]

201-378-0311


JDSU

[email protected]

301-455-5277

Ioannis Kanellakopoulos, PhD

CTOActelis Networks

[email protected]

Tel: +1-510-545-1035


CO Founder, Aktino

[email protected]

949 258 0545 x226
http://www.rad.com/http://www.jdsu.com/index.html


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Thank You

MEF Mobile Backhaul for NXTcomm08 - Wed 06-17-2008 Final1

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