The document discusses Teleste's power-saving innovation for cable networks. It presents three novel options for saving power in cable network equipment in practice: 1) remotely adjusted performance levels, 2) autonomous performance adjustment, and 3) load-based performance adjustment. A power save study showed that enabling Teleste's power save functions on a reference RPD node and three line extender amplifiers reduced their total power consumption by 26%. The document also provides an overview of the implementation status of the three power save options on Teleste's node and amplifier platforms.

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Teleste’s power-saving innovation -
Reduce operational costs and save nature
Customer Seminar April 5, 2019, Maastricht
Rami Kimari
VP, HFC business

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Agenda
• Introduction
• Power save study
• Implementation status

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Introduction

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Capabilities vs utilisation

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Saving potential
RF amplifier components consume 70% of
all power in outside plants
Our solution saves up to 30% of power
used by the RF amplifier components
 Save up to 20% of your cable network
power consumption

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The core idea of Teleste solution
Many optical nodes and amplifiers are
optimised for a speculative situation:
• Full RF load
• Maximum signal levels
In practice:
• Highest frequencies are not used
• Required RF levels are lower than
maximum

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Three novel options to save power in practice
#1
Remotely adjusted
performance levels
#2
Autonomous
performance
adjustment
#3
Load-based
performance
adjustment

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#1 Remotely adjusted performance levels
• Power save modes are used to set
optimal amplifier bias current
based on the total RF load
• Modes are enabled by operators,
locally or remotely

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#2 Autonomous performance adjustment
• Power save modes are used to set
optimal amplifier bias current based on
total RF load
• Linear and dynamic power save modes
are enabled automatically
• No need for local or remote access

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#3 Load-based performance adjustment
• RPD analyses total RF load
• Analysis is used to set right amplifier bias
current, leading to optimal power
consumption
• Operation is autonomous

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Power Save Study

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Power save
function
RPD node
(4 active outputs)
Coaxial cables
(resistive loss)
Line extenders
(1 active output)
TOTAL
Disabled 150 W 60 W 476 W 686 W
Power Save Study - RPD node + 3 line extender amplifiers
Enabled 112 W 35 W 364 W 511 W
-26%
RPD NODE:
4 active outputs (ICON9000)
LINE EXTENDER AMPs:
7 amps (E3) / node output
=> 28 pcs in total
53 dBmV @ 1.2 GHz
47 dBmV @ 1.2 GHz

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47 dBmV
Reference load (full spectrum)
Channel load in use (levels at line extender output)

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47 dBmV
Reference load (full spectrum)Reference load - 2.5 dB
Channel load in use (levels at line extender output)

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47 dBmV
Reference load (full spectrum)Reference load - 2.5 dBReference load - 5.3 dB
Channel load in use (levels at line extender output)

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RPD + 3 line extender performance results
(Source MER: ~49.5 dB)
16
Power
[W]
SC-QAM 256
114 MHz
SC-QAM 256
634 MHz
OFDM 1024
738 MHz
OFDM 1024
930 MHz
OFDM 1024
1122 MHz
MER BER MER BER MER BER MER BER MER BER
Max. 47.0 <10-9 45.0 <10-9 45.1 <10-9 44.6 <10-9 43.6 <10-9
-26% 42.6 2.7x10-9 38.5 2.2x10-7 38.8 <10-9 39.3 <10-9 40.4 <10-9
Max. 47.2 <10-9 45.3 <10-9 45.5 <10-9 45.5 <10-9
-26% 45.7 <10-9 42.4 <10-9 42.4 <10-9 43.5 <10-9
Max. 47.6 <10-9 45.7 <10-9 46.0 <10-9
-26% 47.2 <10-9 44.8 <10-9 45.1 <10-9

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Power save
implementation
status

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#1 Remotely adjusted performance levels
• Teleste’s all classical HFC node and amplifier
platforms include 2 step based
(enabled/disabled) power save function
• Remote control is available with
transponders (DOCSIS/HMS) and coming
with unidirectional RIS control
• Compact line extender amplifier (E3) is the
first design that supports power save control
with RIS receiver

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#2 Autonomous performance adjustment
• Power save trigger level is defined for
compact line extender amplifier (E3)
• Broadband RF load power meter module
(E62) has a release candidate
• RIS module (E62) supports remote control
and software update
• Further platform implementations are
under discussions

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#3 Load-based performance adjustment
• RPD node platforms support adjustable power
save function
• RPD module will report load content
information in Q2/2019
• Knowledge of load information and adjustable
power save function will be implemented to 4
active output strand mounted node platform
(ICON9000) during Q2/2019
• Further platform implementations are under
discussions (DAN300, AC9100 NEO)

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Saves money, energy and nature
Makes sense, right?