ingress egress lte_keith_mothersdale_angacom 2014

Enabling digital evolution

Teleste Proprietary. All rights reserved.

INGRESS/EGRESS/LTEThe Imperative To Improve The In-home Interconnect

Keith MothersdaleHead Of Engineering Passives and Indoor

Teleste Proprietary. All rights reserved.

Stop parties in your drop

Teleste Proprietary. All rights reserved.

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 partsNothing times a lot of is still nothing

Drop

Head-EndBackbone

Node

HE & Backbone & Node

Drop

Investments Maintenance costs

CableLabs is owner of the trademark DOCSIS®

Throughputbefore

Throughputafter

Teleste Proprietary. All rights reserved.

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?

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!

Teleste Proprietary. All rights reserved.

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

Teleste Proprietary. All rights reserved.

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)

Teleste Proprietary. All rights reserved.

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

Teleste Proprietary. All rights reserved.

The problem and the solution, RFI shielding

Standard open F male BarrIER® F male

Teleste Proprietary. All rights reserved.

The problem and the solution, RFI shielding

In-Home amplifier, ports open In-Home amplifier with BarrIER®

Teleste Proprietary. All rights reserved.

The problem and the solution, RFI shielding

Two way splitter, one port open Two way splitter with BarrIER®

Teleste Proprietary. All rights reserved.

4G LTE interference on digital 256QAM carriers 3.0 CM

Teleste Proprietary. All rights reserved.

4G LTE interference on digital QAM carriers, 3.0 CM

Open F Male Connector

Teleste Proprietary. All rights reserved.

Frequency (Hz) Throughput (Mb/s) DS Level (dBmV) DS MER (dB) V/M Field600000000 0 0 0 1.03632000000 0 0 0 1.84648000000 0 -10 31.9 1.83664000000 5.16 -10.7 34.3 1.76680000000 5.1 -10.2 33.8 1.87696000000 5 -9.8 34.7 1.84712000000 0 0 0 1.87744000000 0 0 0 1.85776000000 0 0 0 1.85792000000 0 0 0 1.83808000000 0 0 0 1.8824000000 0 0 0 1.82840000000 0 0 0 1.82856000000 0 0 0 1.8872000000 0 0 0 1.86

4G LTE interference on digital 256QAM carriers, 3.0 CM

Teleste Proprietary. All rights reserved.

4G LTE Interference on Digital QAM carriers, 3.0 CM

Open F male

Teleste Proprietary. All rights reserved.

4G LTE Interference on Digital QAM carriers, 3.0 CM

Open F Male Connector with BarrIER®

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 6.17648000000 4.99 -10.9 33.2 5.88664000000 5.03 -10.4 31.4 6.22680000000 4.98 -11.2 30.5 6.22712000000 5.07 -10.1 31 6.21744000000 5.02 -10.7 33.4 6.1776000000 5.07 -10.5 31.9 6.48792000000 5.38 -10.3 30.2 6.42808000000 5.10 -11.1 33.7 6.14824000000 4.99 -10.9 33.2 5.88856000000 5.14 -12 29.7 5.58872000000 5.06 -12 34.2 6.8888000000 5.02 -12 34.2 5.69904000000 5.31 -12 34.3 6.06920000000 5.07 -11.9 34.3 6.87

Teleste Proprietary. All rights reserved.

4G LTE Interference on Digital QAM carriers, 3.0 CM

Open F male with BarrIER®

575000000 675000000 775000000 875000000-15

-10

-5

0

5

10

15

20

25

30

35

40

Throughput MBits/Sec

DS Trans-ferred MB

DS Power Level dBmV

DS MER dB

V/M Field

Frequency MHz

Teleste Proprietary. All rights reserved.

4G LTE interference on digital 256QAM carriers, STB

Open F Male Connector Flylead

Teleste Proprietary. All rights reserved.

4G LTE Interference on digital 256QAM carriers, STB

Frequency (Hz) AGC PVR Power (dBmV) PVR MER / SNR Corr Post BER V/M Field600000000 34 -8,3 34 0 0,52648000000 34 -9 35 0 0,21664000000 34 -9,1 35 0 0,26680000000 34 -8,8 33 0 0,26712000000 34 -8,4 0 0 0744000000 34 -8 33 0 0776000000 34 -8,9 0 0 0,38792000000 34 -8,7 31 250 0,47808000000 34 -10,7 30 975 0,52824000000 34 -7,9 30 700 0,52856000000 34 -10,2 30 1800 0872000000 34 -10,9 35 0 0888000000 36 -10,6 34 0 0896000000 37 -11 34 0 0904000000 39 -12,1 32 0 0

Teleste Proprietary. All rights reserved.

4G LTE Interference on Digital QAM carriers, STB

BarrIER® Open F Male Connector

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 Field600000000 62 -9,5 32 0 17,6648000000 62 -9,6 32,3 0 15,02664000000 63 -9,7 33,7 0 14,94680000000 64 -10,4 33,5 0 16,67712000000 58 -10,5 31 0 13,79744000000 58 -10,1 32,9 0 14,51776000000 58 -10 35,7 0 14,13792000000 58 -9,9 38,7 0 11,77808000000 60 -10,6 32,8 0 13,97824000000 58 -9,7 34,9 0 13,89856000000 59 -10,2 31,2 0 10,41872000000 58 -9,5 32,6 0 11888000000 59 -9,6 31,7 0 10,33896000000 58 -8,9 36 0 9,42904000000 59 -9,2 35,5 0 8,9

Teleste Proprietary. All rights reserved.

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

Teleste Proprietary. All rights reserved.

THANKS!