Small Cell Expansion of 4G/LTE. The relentless
demand for premium video services is putting a
tremendous strain on network access infrastruc-
tures as wireless service providers (WSPs) look
to support the resulting backhaul trafc. In order
to preserve scarce spectrum resources WSPs
are deploying tens of thousands of small or
metrocells. For these unique deployments unlike
larger macrocells can leverage more than point
to point ber - GPON and VDSL2 will also be
leveraged to deliver low cost, native Ethernet to
these small cells that will increase 4G coverage
and typical service speeds.
Legacy to Next-Generation Migration.
Service providers, focused on the delivery of new
revenue, are introducing new network capabilities
and applications. As network operators invest in
new Ethernet networks to support this growth,
they must continue to support incumbent access
services used by established mobile networks
such as traditional GSM- or CDMA-based
mobile services. These legacy technologies
typically enable comprehensive coverage for
the operator’s customer base and a vital source
of ongoing revenue. The recommended mobile
backhaul solution offers next-generation Carrier
Ethernet services and allows for the migration of
incumbent SONET/SDH services and transport
architectures. ADTRAN leverages OTN switch-
ponder capabilities based on ITU-T G.709 to
provide effective SONET/SDH to Packet Optical
migration. Also required is migration to evolving
network synchronization services based on ITU-T
G.8262 Synchronous Ethernet and IEEE 1588-2008
Precision Timing Protocol.
SLA Assurance. The ADTRAN NetVanta 8044M
is a modular Ethernet Access Gateway that
was specically designed to target the mobile
backhaul market. Due to the strict performance
requirements of mobile networks, backhaul
solutions are often required to provide separate
and secure customer viewable performance
monitoring Web portals for each mobile network
operator. A standards-based performance
management tool set based on ITU-T Y.1731
and Y.1564 is used to capture delay, delay
variation and loss metrics that are then presented
on these performance management dashboards.
ADTRAN solutions support these measurement
techniques and do so to the sub 1ms accuracy
needed to properly verify compliance to stringent
backhaul SLAs.
Scalable Reliability. In the past, parallel networks
were constructed to ensure each new service
did not impact the quality of another—a method
that is not only expensive to build and manage,
but limits scalability. Now, service providers can
eliminate the need for capital intensive overlays
to support 4G backhaul services and grow their
overall addressable market opportunity in both
mobile and residential backhaul applications
through scalable service separation. This
approach delivers scalable reliability by extending
MEF-certied, wavelength-separated Ethernet
services to provide important service isolation -
key for serving individual mobile network operators
that may share a single cell site or simultaneously
offer residential broadband or business Ethernet
with wholesale backhaul services.
NetVanta 8044M
Ethernet Access Gateway congured with
2G, 3G to 4G access migration option
NetVanta 8424SD
10GE Multi-service Edge
Switch for LTE-A backhaul
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