Alcatel-Lucent 9500 - Page 3

Alcatel-Lucent 9500 Microwave Packet Radio North American Markets 3
Toremaincompetitiveintherapidly
changingmobilemarketplace,operators
needtodeliverprotablenewservices
whilereducingbackhaulcosts.Users
areexpandingtheirdemandsbeyond
basicvoiceanddataserviceslikeinstant
messagingandemail;theywantmore
delay-sensitiveapplications,suchas
mediastreamingandreal-timemulti-
media.Tosupporttheseservices,
broadbandwirelesstechnologies,
includingHigh-SpeedDownload
PacketAccess(HSDPA)andEVDO,
areprovidinghighertransmission
speedsandpacketinterfaces.
However,backhaulnetworksmust
alsoevolvetomeetthesenewband-
widthdemandsatacceptablecost
points.IPtransportoffersavaluable
solutiontohelpoperatorstransform
networksandbettermanagegrowing
broadbandtrafc.
TheAlcatel-Lucent9500MPRoffers
arevolutionarywayoftransporting
packetsnatively.Usinganinnovative
approachtodeliverthequalityof
servicerequiredforeachtrafctype
dramaticallyreducesoperating
expenditures(OPEX)andimproves
theconnectivityofEthernetand
legacyT1basestations.Asaresult,
thenetworkcaneasilyandefciently
accommodaterapidgrowthin
multimediatrafc,withsmooth
migrationfromTDMtoIP.
Nativetransportofpackettrafc
producesacleargaininscarceradio
resources;whilepacketsolutionscan
absorbTDMtrafcefciently,TDM
solutionscannothandlepacket
trafccost-effectively.
Figure1comparesTDMtransport
andpacketaggregation.
Meeting a key backhaul challenge –
the rapid growth of multimedia traffic
Packet
Radio Node
Aggregated Packet Traffic
Packets
Ethernet
“Data Aware”
Packet Aggregation
ATM NxE1
TDM NxE1
Cell Site
Cell Site
Cell Site
Cell Site
TDM Radio
Node
Overlay of Multiple Traffic
TDM
NxE1
Ethernet
2G
3G
E1 Stacking
ATM NxE1
TDM NxE1
2G
3G
Figure 1. TDM transport versus packet aggregation