Mob 10th Point-CATV

8/8/2019 Mob 10th Point-CATV

1/19

CATV Roadmap

J. C. PointJCP-Consult

[email protected]

CATV Roadmap

J. C. PointJCP-Consult

[email protected]


2/19

agendaagendaagenda

HFC intro/capacity Cable situation (standard, economy and trends) Short/medium term potential R&D topics


3/19

Physical HFC architecturePhysical HFC architecturePhysical HFC architecture


4/19

Cooperating networkCooperating networkCooperating network

Broadcast / multicast servicesBroadcast / multicast services

singlecast servicessinglecast services

Network 1: broadcastNetwork 1: broadcast

Network 2: telecomNetwork 2: telecom

HFC (like BWA) is a cooperating network by itself;includes network 1 and 2HFC compares with (terrestrial+DSL) or (satellite+DSL) forexample

HFC (like BWA) is a cooperating network by itself;includes network 1 and 2HFC compares with (terrestrial+DSL) or (satellite+DSL) forexample

networknetwork clientclient


5/19

Upstream/downstream Band allocationUpstream/downstream Band allocationUpstream/downstream Band allocation

Evolution from broadcast to multicast dedicated to a cellEvolution from broadcast to multicast dedicated to a cell


6/19

Ultimate plant capacityUltimate plant capacityUltimate plant capacity


7/19

Current standard situationCurrent standard situationCurrent standard situation

Physical layer: DVB / CENELEC DTV: DVB (transport, signalling and middleware) Layer 2 protocols: EuroDOCSIS variant dominate for

data; QoS aware MAC layer Layer 2 security (anti-cloning, authentication,..) Set of primitives to upper layers

VOIP architecture: defined by PacketCable: Based on thin client model (MGCP) Makes use of RSVP in the access Relies on E-DOCSIS MAC for security and QoS Defines complete back office, and interface to PSTN


8/19

Packet cable architecturePacket cable architecturePacket cable architecture

Managed IP Backbone

(QoS Features)(Headend, Local, Regional)

PSTN

Media Gateway

SignalingGateway

CallManagementServer

DOCSIS accessnetwork

CableModemMTA

Embedded MTA

CMTS

HFC accessnetwork

(DOCSIS)

CableModemMTA

Embedded MTA

CMTS

Media GatewayController

OSSBackoffice

BillingProvisioning

Problem ResolutionDHCP ServersTFTP Servers...

MediaServers

Announcement ServersConference Mixing Bridges...

DVB accessnetwork

(Cable,LMDS,

Terrestrial)

CableModemMTA

Embedded MTA

INA

CallManagementServer

MGCP

MGCP

C O P S

D O C S I S M A C

D V B M A C


9/19

Home extensionsHome extensionsHome extensions

Cablehome: Extension of QoS paradigms to the home network


10/19

European cable situationEuropean cable situationEuropean cable situation

Weak standardisation position (proeminence ofUS standards); which has led to some localvendors bankrupcy; few projects

Pro-active association (ECCA), grouping main

operators; TComLabs for interoperability Tendency to recomposition towards a few main

players (Pan-European operators) Weak economical situation but good potential

(broadband access, voice, DTV); 50% ofbroadband access market


11/19

HFC networks SWOTHFC networks SWOTHFC networks SWOT

Strength: Flexible capacity; also evolution to wireless / FTTH Cooperative network: allows broadcast+multicast+ singlecast

services Weakness:

Upgrade cost and delay MSOs financial situation / legacy situation

Opportunities: Integration of video and multicast Added value services with combination of bidirectional/local

storage

Threads: ADSL with H264 / new coding techiques / Satellite with PVR Cooperating networks


12/19

TrendsTrendsTrends

Fast bidirectional upgrade No strong push for DTV Strong deployment of broadband data access; may

drive to global IP infrastructure VOIP systems deployment (slower then expected as

linked with operator size) Video (VOD) related services expected to deploy

rapidly (with competitive operators threat) Home network extensions: interface with HN, SLA /

security in the home


13/19

Potential R&D topicsPotential R&D topicsPotential R&D topics Physical layer upstream:

Disturbance analysis and modelling (5-25Mhz) Impulse and Ingress noise statistical analysis Smart spectrum management:

Plant pre-measurement and qualification Dynamic intelligent system linked with SLA

New Physical layer analysis: Ex. : Multitone for very high bandwidth services

Physical layer downstream: New physical layer / FEC studies for introduction of very high

bandwidth services (VOD, singlecast services related to video) Optical transport downstream:

Modelling and optimisation of long distance analog links Optical transport upstream Studies of RF aspects of home network


14/19

Potential R&D topics (2)Potential R&D topics (2)Potential R&D topics (2)

Layer 2: Study of MAC layer behavior with introduction of

video services: QoS definition Upstream and downstream MAC modelling and behavior Linkage with upper layers

Definition of MAC layers associated with newphysical layers


15/19


IP infrastructure Definition of IP infrastructure for integrated services

including video (started with Cassic in FP5): Service discovery Provisionning

Signalling /session establishment (SIP) QoS Home network segment

Link with middleware Interoperability:

Interoperability in the access network Interconnection with other network (e2e interop.)


16/19


Architecture aspects Thin vs. Thick client paradigms, Distributed storage architecture Integration of video services Multicast / broadcast signalling

Relation with standards CENELEC: Physical layer aspects DVB (all layers including IP infrastructure) TComLabs; EuroDOCSIS (layer2) and interoperability Packet Cable (IP infrastructure and extensions to video) CableHome (extension to home network) TV anytime (Home storage)

ETSI: TIPHON and Packet CableMORE GENERALLY; ENFORCEMENT OF EUROPEAN CABLE

ACTIVITY FOR STANDARDISATION ON LAYER 1 TO 4.


17/19

Thick vs. thin clientThickThick vsvs . thin client. thin client

Client-server architecture vs. peer to peerarchitecture: Driven by requirement for low cost terminal Natural extension to current packet cable

architecture Strong implication on middleware (light MHP =

evolution path to full MHP)

Extension: distributed storage architecture


18/19

ConclusionConclusionConclusion

A whole EEC supported framework can be definedspecifically for CATV as a broadband access medium,including physical layer, MAC layer, IP infrastructureeevolution, middleware, home network, interoperability,and standardisation

Task force are being initiated to build this framework: Current phase: areas definition, discussion with potential

partners (operators, vendors)

Commonality on some aspects with BWA networks


19/19

ConclusionConclusionConclusion

If you are interested in the CATV area, contactme!

Jean Charles Point

[email protected]

Tel: + 33 (0)2 23271246Cell: + 33 (0)608072473

Mob 10th Point-CATV

Documents

Transcript of Mob 10th Point-CATV