Alcatel-Lucent 1660 - Manual (Page 8)

Alcatel-Lucent OMSN Product Family 8
The multiservice capability of the Alcatel-Lucent
OMSN nodes equipped with the ISA-ATM blades
offers mobile service providers a cost-effective solution
for 3G mobile aggregation in the UMTS terrestrial
radio access network. ISA-ATM switching blades can
consolidate ATM traffic collected from different Node
B access devices onto shared SDH virtual container
(VC) resources in STM-n rings, and switch the ATM
traffic into the network with QoS support for all traffic
classes. Traffic-policing, shaping and congestion-control
management features allow a complete range of ATM
traffic contracts. For increased service manageability,
ATM OA&M capabilities provide end-to-end fault
management and performance monitoring.
Figure 3. Cost-effective 3G mobile aggregation
Backbone Metro aggregation
1850 TSS
1660 SM 1662 SMC
1662 SMC
1650 SMC
ISA-ATM
1650 SMC
1660 SM
3G mobile access
n x E1 (IMA)
STM-n
E1
STM-4
STM-16
IP/MPLS
UMTS core
network
PSTN
STM-64
RNC
RNC
SGSN GGSN
MSC
Node B
Node B
Node B
Node B
Node B
ATM backhauling and 3G mobile aggregation
Broadband-data applications require transport-network
architectures capable of processing data traffic flows at
native level. The 3G mobile-aggregation application is
a key example of how service providers can benefit from
the ATM switching integrated into the Alcatel-Lucent
OMSN products (see Figure 3).