Alcatel-Lucent 9500 Microwave Packet Radio North American Markets 3
Toremaincompetitiveintherapidly
changingmobilemarketplace,operators
needtodeliverprotablenewservices
whilereducingbackhaulcosts.Users
areexpandingtheirdemandsbeyond
basicvoiceanddataserviceslikeinstant
messagingandemail;theywantmore
delay-sensitiveapplications,suchas
mediastreamingandreal-timemulti-
media.Tosupporttheseservices,
broadbandwirelesstechnologies,
includingHigh-SpeedDownload
PacketAccess(HSDPA)andEVDO,
areprovidinghighertransmission
speedsandpacketinterfaces.
However,backhaulnetworksmust
alsoevolvetomeetthesenewband-
widthdemandsatacceptablecost
points.IPtransportoffersavaluable
solutiontohelpoperatorstransform
networksandbettermanagegrowing
broadbandtrafc.
TheAlcatel-Lucent9500MPRoffers
arevolutionarywayoftransporting
packetsnatively.Usinganinnovative
approachtodeliverthequalityof
servicerequiredforeachtrafctype
dramaticallyreducesoperating
expenditures(OPEX)andimproves
theconnectivityofEthernetand
legacyT1basestations.Asaresult,
thenetworkcaneasilyandefciently
accommodaterapidgrowthin
multimediatrafc,withsmooth
migrationfromTDMtoIP.
Nativetransportofpackettrafc
producesacleargaininscarceradio
resources;whilepacketsolutionscan
absorbTDMtrafcefciently,TDM
solutionscannothandlepacket
trafccost-effectively.
Figure1comparesTDMtransport
andpacketaggregation.
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