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Hughes Outroute Cancellation
Module
Hughes Network Systems, LLC (Hughes) is the worlds leading
provider of satellite broadband for home and office, delivering
innovative
network technologies, managed services, and solutions for
enterprises and governments globally. HughesNet is the #1
high-speed
satellite Internet service in the marketplace, with offerings to
suit every budget. To date, Hughes has shipped more than 2.5
million
systems to customers in over 100 countries, representing over 50
percent market share. Its products employ global standards
approved
by the TIA, ETSI, and ITU organizations, including IPoS/DVB-S2,
RSM-A, and GMR-1. Headquartered outside Washington, D.C., in
Germantown, Maryland, USA, Hughes operates sales and support
offices worldwide, and is a wholly owned subsidiary of EchoStar
Corporation (NASDAQ: SATS), a premier global provider of
satellite operations and digital TV solutions.
For additional information about Hughes, please visit
www.hughes.com.
Significant bandwidth cost savings through frequency reuse
The Hughes Outroute Cancellation Module (OCM) is a patented
technology that enables service providers to maximize their
spectral
efficiencythereby yielding significant savings in space
segment
costs.
The Hughes OCM is based on an overlay system (in Ku- or
C-band)
whereby the outroute and inroute traffic share the same
frequency
spectrum. Advanced signal processing is used at the hub to
cancel
the overlaid outroute signal, leaving the inroute signal to be
cleanly
demodulated.
Key Features:
Q Works best with partial transponders
Q Transparent to type of modulation or coding
Q User-friendly GUI with multiple configurable parameters
Q Remote monitoring capability complete with alarms and logs
The OCM feature supports the full suite of services enabled
by
the HN/HX Systems including advanced features such as
Inbound
Quality of Service (IQoS) for guaranteed inbound bandwidth, and
is
compliant with the DVB-S2 standard for outroute
transmission.
The Hughes OCM with its advanced frequency reuse scheme is
the
ideal solution for service providers or enterprises looking to
further
improve network operating efficiency while lowering operating
costs.
The Hughes OCM is yet another example of the Hughes
commitment
to providing its customers with a highly efficient satellite
platform to
deliver the widest range of broadband applications and
services.
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
1MHz
Frequency
Without OCM
Returns
Forward
20 MHz
SignalP
ower
Frequency
With OCM
(as seen at the hub demodulators)
Forward + Returns
20 MHzSignalP
ower
Outroute Cancellation Module works best where;
Q network capacity is bandwidth limited where additional power
is available,
Q outroute carriers operate in linear mode,
Q differences in power density between outroute and inroute
carriers is 8 dB or more,
Q benefits increase as the ratio of inroute to outroute traffic
approaches 1:1, and
Q as a general rule, up to 50 percent of the outroute capacity
can be reused, assuming sufficient power.
8/11/2019 Hughes_OCM_H35657_062111_0155pm
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11717 Exploration Lane Germantown, MD 20876 U
www.hughes.com
Hughes, Hughes TurboCode, and HughesNet are registered
trademarks of Hughes Network
Systems, LLC. 2011 Hughes Network Systems, LLC. All rights
reserved.
All information is subject to change.
VSAT 318 JUN 11
H35657 ID
Hughes Outroute Cancellation Module
For additional information, please contact Hughes at
[email protected] or visit www.hughes.com.
Architecture Overview
Outroute cancellation is achieved by reconstructing the
outroute
signal and then subtracting it from the composite received
signal.
Remote terminals using the OCM feature are required to operate
in
Hughes TurboCodemode, which enables inroutes to recover
power
and bandwidth margins, allowing them to share the same
outroute
bandwidth.
Additional Features & Benefits
Q Automatic frequency tracking and acquisition
Q User configurable parameters for signal bandwidth,
delay, frequency plan, group delay, and amplitude slope
demodulation
Q Redundant operation
Technical Specifications
General
Q Up to 72 MHz cancellation of multiple carriers
Q Cancels multiple carriers
Q Available as a standalone or in a 1:1 redundant system
Q Works on C-, Ku-, or Ka-band
Interfaces
Q IF interface: 75 Ohm BNC-f
Q Input uplink (reference) signal power: -30 to 0 dBm
Q Input downlink (aggregate) signal power: -60 to -30 dBm
Q Output uplink signal power: -34 to -4 dBm
Q Monitoring port: EIA-232
Physical
Q 2 RU for non-redundant system
Q 5 RU for redundant system
Q Operating temperature: 32 F (0 C) to 104 F (40 C)
Q Power supply: Universal AC 100250 VAC, 4763 Hz
HubRemoteRemote
Both hub and
remotes receive
the same spectrum
from the same
transponder
Outbound and
inbound
traffic
Outbound bandwidth
Cancelled
Outbound Traffic
Inbound TrafficInbound Traffic
Outbound
Equipment
Hubtransmit
data
Hubreceivedata
OutboundCancellation
Module
Demodulator
and Turbo
Decoder
