Benefits and implementation of ingress/egress reduction. BarrIER® technology is an innovative solution for reducing ingress/egress that addresses the complete in-home interconnect domain and solves the problem of maintaining adequate C/N levels.

1. Enabling
digital
evolution
Teleste Proprietary. All rights reserved.
INGRESS/EGRESS/LTE
The Imperative To Improve The In-home Interconnect
Keith Mothersdale
Head Of Engineering Passives and Indoor

2. Teleste Proprietary. All rights reserved.
Stop parties in your drop

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Migrating from DOCSIS® 3.0 to 3.1 “The Challenge”
Should we first learn to walk before we can run?
The DROP = GATEWAY to the broadband network
Total throughput = throughput of DROP * throughput of other network parts
Nothing times a lot of is still nothing
Drop
Head-End
Backbone
Node
HE & Backbone & Node
Drop
Investments Maintenance costs
CableLabs is owner of the trademark
DOCSIS®
Throughput
before
Throughput
after

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Migrating from DOCSIS 3.0 to 3.1 “The Challenge”
What is key to success
• Network reliability & performance
• Quality of Service all the way in to the home
• Customer satisfaction
Do we have this today?

5. Teleste Proprietary. All rights reserved.
Migrating from DOCSIS 3.0 to 3.1 “The Challenge”
Work in progress!
• Bad contacts
• Poor connections
• Damaged cables
• Intermodulation
• Common Path Distortion (CPD)
• Ingress/Egress!
• Screening effectiveness of the in-home domain!

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Migrating from DOCSIS 3.0 to 3.1 “The Challenge”
Ingress
• 90% induced by subscribers
• Ingress perceived as an upstream issue
• Ingress perceived as a network issue
• DOCSIS 3.1 will allow higher modulation schemes with current
network C/N but what about to day (Can we take our foot of the gas)?
New Kids On The Block
• Down Stream ingress C/N interference
• Down Stream egress interfering with wireless services

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Can ingress/egress get any worse?
New services being deployed
• Deployments in CATV Band (700 -1200MHz)
• Higher powered handsets and base stations
• CPE equipment sensitive to LTE interference
• Regulatory obligation not to transmit CATV signals
outside of closed network (Egress)

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The problem
Ingress/Egress/LTE interconnect RFI shielding effectiveness
• Open ports of wall sockets
• Open ports of passive splitters and taps
• Loose RF connectors
• Open RF connectors
• Poor or damaged RF cables

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The problem and the solution, RFI shielding
Standard open F male BarrIER® F male

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The problem and the solution, RFI shielding
In-Home amplifier, ports open In-Home amplifier with BarrIER®

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The problem and the solution, RFI shielding
Two way splitter, one port open Two way splitter with BarrIER®

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4G LTE interference on digital 256QAM carriers 3.0 CM

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4G LTE interference on digital QAM carriers, 3.0 CM
Open F Male Connector

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Frequency (Hz) Throughput (Mb/s) DS Level (dBmV) DS MER (dB) V/M Field
600000000 0 0 0 1.03
632000000 0 0 0 1.84
648000000 0 -10 31.9 1.83
664000000 5.16 -10.7 34.3 1.76
680000000 5.1 -10.2 33.8 1.87
696000000 5 -9.8 34.7 1.84
712000000 0 0 0 1.87
744000000 0 0 0 1.85
776000000 0 0 0 1.85
792000000 0 0 0 1.83
808000000 0 0 0 1.8
824000000 0 0 0 1.82
840000000 0 0 0 1.82
856000000 0 0 0 1.8
872000000 0 0 0 1.86
4G LTE interference on digital 256QAM carriers, 3.0 CM

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4G LTE Interference on Digital QAM carriers, 3.0 CM
Open
F male

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4G LTE Interference on Digital QAM carriers, 3.0 CM
Open F Male Connector with BarrIER®

17. Teleste Proprietary. All rights reserved.
4G LTE Interference on Digital 256QAM carriers, 3.0 CM
Frequency (Hz) Throughput (Mb/s) DS Level (dBmV) DS MER (dB) (V/M Field)
600000000 5,00 -9.4 31.2 6.17
648000000 4.99 -10.9 33.2 5.88
664000000 5.03 -10.4 31.4 6.22
680000000 4.98 -11.2 30.5 6.22
712000000 5.07 -10.1 31 6.21
744000000 5.02 -10.7 33.4 6.1
776000000 5.07 -10.5 31.9 6.48
792000000 5.38 -10.3 30.2 6.42
808000000 5.10 -11.1 33.7 6.14
824000000 4.99 -10.9 33.2 5.88
856000000 5.14 -12 29.7 5.58
872000000 5.06 -12 34.2 6.8
888000000 5.02 -12 34.2 5.69
904000000 5.31 -12 34.3 6.06
920000000 5.07 -11.9 34.3 6.87

18. Enabling
digital
evolution
Teleste Proprietary. All rights reserved.

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4G LTE interference on digital 256QAM carriers, STB
Open F Male Connector Flylead

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4G LTE Interference on digital 256QAM carriers, STB
Frequency (Hz) AGC PVR Power (dBmV) PVR MER / SNR Corr Post BER V/M Field
600000000 34 -8,3 34 0 0,52
648000000 34 -9 35 0 0,21
664000000 34 -9,1 35 0 0,26
680000000 34 -8,8 33 0 0,26
712000000 34 -8,4 0 0 0
744000000 34 -8 33 0 0
776000000 34 -8,9 0 0 0,38
792000000 34 -8,7 31 250 0,47
808000000 34 -10,7 30 975 0,52
824000000 34 -7,9 30 700 0,52
856000000 34 -10,2 30 1800 0
872000000 34 -10,9 35 0 0
888000000 36 -10,6 34 0 0
896000000 37 -11 34 0 0
904000000 39 -12,1 32 0 0

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4G LTE Interference on Digital QAM carriers, STB
BarrIER® Open F Male Connector

22. Teleste Proprietary. All rights reserved.
4G LTE Interference on Digital 256 QAM carriers, STB
Frequency (Hz) AGC PVR Power (dBmV) PVR MER / SNR Corr Post BER V/M Field
600000000 62 -9,5 32 0 17,6
648000000 62 -9,6 32,3 0 15,02
664000000 63 -9,7 33,7 0 14,94
680000000 64 -10,4 33,5 0 16,67
712000000 58 -10,5 31 0 13,79
744000000 58 -10,1 32,9 0 14,51
776000000 58 -10 35,7 0 14,13
792000000 58 -9,9 38,7 0 11,77
808000000 60 -10,6 32,8 0 13,97
824000000 58 -9,7 34,9 0 13,89
856000000 59 -10,2 31,2 0 10,41
872000000 58 -9,5 32,6 0 11
888000000 59 -9,6 31,7 0 10,33
896000000 58 -8,9 36 0 9,42
904000000 59 -9,2 35,5 0 8,9

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Network signals interfering with LTE (Egress)
A 15dBmV CATV signal feeding 30 feet of coax with an open
F male connector will interfere with an LTE handset at 6 feet

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THANKS!