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F

ibeAirIP-MAX

NewIndoormodules(IDMs):

Optical(SFP)

Electrical10/100/1

000Mbps(RJ45)

UniqueAdaptive

modulation(QPSK-256QAM)

56MHzchannels

100,200,250,300,350,400Mbps

50MHzchannels

80,150,200,250,300,350Mbps

28/30MHzcha

nnels

50,100,120,140,170,200Mbps

Dual-radioSuppor

tforsingleGbEinterface

FlowControl

QualityofService

(QoS)

EthernetStatistics

(RadioandLine)

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O

ptimizingBackhaulfortheNewIPBaseStation

Source:

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O

ptimizingBackhaulforthe

NewIPBase

Station

Source:

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DynamicAdaptiveModu

lation

Goals

Increasenetworkcapacity(accessandbackhaultransmis

sion)

ReduceCAPEX

Howdoesitwor

k?

Utilizehighestp

ossiblemodulationaccordingtothelinkqualitydegradation

Hitlessswitchov

erbetweenmodulationschemesbasedonMSEcriterion

Maximizespectrum

usage

Increasedcapacityovergivenbandw

idth

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256

QAM

128QAM

6

4QAM

256QAM

32QAM

16Q

AM

QPSK

Time

100to400Mbps@56

MHzChBW

50to200Mbps@28

MHzChBW

Throughput

Foreachsignalcarrier:

CeragonsD

ynamicAdap

tiveModulati

on

Voice

&realtime

serv

ices

Non-realtime

serv

ices

Extra4xcapacityona

givenChannelBandwidth

Contin

uoustrafficforVoice&realtimeserv

ices

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Availability

andcapacity

16QAM

QPSK

99.995

%

200

U

navailability

Rxleve

l

Capa

city

(@2

8MHz

channel)

32QAM

64QAM

128QAM

256QAM

99.999

%

99.99%

99.95%

99.9%

Mbps

170

200

140

100

200

120

200

Hitlessswitch-over,

stepbystepdown

/upthru6modulationschemes

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56MHz

250Mbps

32-QAM

56MHz

400Mbps

256-QAM

AdaptiveModu

lationprincip

leexample

Con

tinuoustrafficfor

Voice&realtimes

ervices

Voice

Data

Data

Data

Voice

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AdaptiveM

odulationConfiguration

Userchoice:

AdaptivemodulationorFixedmodulation

Maximum

andminimum

modulation

setup

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FEQoS

Fourprioritiesque

ues

Highestpriorityto

BPDUPackets

(BridgeProtocolD

ataUnit).

Classifyingaccord

ingto:

Port

802.1pVLAN

TOS-IPprecedence

Schedulingaccord

ingto

Strictpriority

WeightedRoundRobin8/4/2/1

W1-Highestp

riority

W2

W3

W4lowestpriority

Sche

duling

depa

rtures

Classify

Arrivals

PriorityQueues

13

2

4

5

time

time

Arrivals

Departures

Packet

service

1

3

4

5

2

5

4

2

3

1

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GbEQoS

Fourprioritiesqueu

es

HighestprioritytoB

PDUs

Classifyingaccordingto:

Externalheade

r

VLAN802.1p

TOS/TC-IPp

recedence

MPLSexpfield

VLANID

UDPpackets

Shortpackets

Schedulingaccordingto:

Strictpriority

ConfigurableH

ierarchical

WeightedRoundRobin(161weights)

Or,firstqueue

strictandothersW

RR

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FlowControl

SupportsFlowC

ontrolaccordingto

IEEE802.3x

Whenflowcontr

olisenabled,FibeA

irIP-MAXsends

backPAUSEframes,forsignalingthattheincoming

bufferisfull

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MultiRadio

2+0EthernetTraffic

(XPICsupported)

withgracefuldegrad

ationability

toonecarrier

1+1HSBfor8xE1s

Lineprotection

Withoutlineprotection

:

SingleGbE

interfacecapacitysplitbetweentworadiocarrier

..Ov

erasingleChann

elBW

W

ithlineprotection:

U

singopticalsplitterforG

bE

&

SplitterpanelforE1s

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MultiRadio

-Continue

MultiRadio&Ada

ptivemodulation

Independencebehaviorforeachradiocarrier

Maximizesp

ectrum

efficiency

Splitbetweentwocarriers

NOTaccordingLinkAggregation

NOTdependento

nnumberofMACad

dressesnorontheir

momentarytrafficcapacity

Gb

E

8E1

8E

1GbE

v h