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TelecomInnovators’

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Building Media Servers and Gateways with AdvancedTCA

David AsherDirector of Business Development

NMS [email protected]

mailto:[email protected]


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Slide 2www.nmscommunications.com

Introduction to AdvancedTCA


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AdvancedTCA: NextGen Telco Platform

StandardizedCommon and interoperable across multiple vendors

High availabilityNo single point of failureField Replaceable Units (FRUs)= blade

ScalableBlades, shelf size, AMCFabric bandwidth from Gbps to Tbps

FlexibleRe-use of the same platform

Unified system management


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Comparison: AdvancedTCA vs. CompactPCI

Blade AttributesVolume per board >3Power per board >3Processing capacity x2Interconnecting BW >4

Functional AttributesBetter HA (no PCI bus)CO-power systemModularity (AMCs)Storage capabilityStandardized management

Ref: Alcatel 2004


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Internal Time Division Multiplexing (I-TDM)

PICMG standardTransport 64 kbs media streams over:

Packet backplanesEthernet LANs

“Virtual” replacement for H.110 busMore robust than H.110Eliminates parallel bus on the backplane

High capacity: ~10K DS0s per module100Ks of DS0s per shelf

Low latency: 1 ms and 125 µsec packet rates


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Implementation Challenges

Choosing the right backplane interfacesOn-board power subsystemIPMI and management planeInteroperabilitySoftware architectureClocking options


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Introduction to IP Multimedia Subsystem (IMS)


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IMS Components

Application serversAll SIP-based platforms

Home Subscriber Service (HSS)In-memory databasesReliable storage

S-CSCF, P-CSCF, I-CSCFEvolution of softswitches

Media Resource FunctionsExtensive media processing

Gateways to PSTNMedia gatewaysSignaling gateways

OtherSession border controllersBreakout gateways

Same platform can be used for each functionOne platform can host more than one function

Same platform can be used for each functionOne platform can host more than one function


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IMS Architecture (Release 6)

IMS Layer

Transport Layer

Services and Applications Layer

IMS Session Signaling

IMS User Plane Data

IMS-MGW

IPv6 PDN(IPv6 Network)

MGCF

PDF

I-CSCFS-CSCFBGCF

Applications(Ext. SIP AS, OSA AS,

CAMEL SE)

MRFC

MRFP

MRF

IPv4/IPv6BB

CS Networks(PSTN, CS PLMN)

CSCF

P-CSCF

SGW

OSA SCSIM SSF

SIP AS

Application Servers (AS)

BG

SLF

ALG

TrGW

‘IMS IPGW


IP CAN ABGAN

Terminals

PEF/TPF

HLR/AuC (‘CS/PS’)

HSS

IMS Data Handling

R7TISPAN R1

R6(WLAN WAG, PDG)

R5(RAN, SGSN)

Access Layer

IMS Layer

Transport Layer

Services and Applications Layer

IMS Session Signaling

IMS User Plane Data

-


MGCF

PDF

I-CSCFS-CSCFBGCF

Applications(Ext. SIP AS, OSA AS,

CAMEL SE)

IPv4/IPv6BB

CS Networks(PSTN, CS PLMN)

CSCF

P-CSCF

OSA SCSIM SSF

SIP AS


OSA SCSIM SSF

SIP AS


BG

SLF

ALG

TrGW

‘IMS IPGW


IP CANIP CAN ABGAN

Terminals

PEF/TPF

HLR/AuC (‘CS/PS’)

HSS

IMS Data Handling

R7TISPAN R1

R6(WLAN WAG, PDG)

R5(RAN, SGSN)

Access Layer IMS MGW

SGW

MRFC

MRFP

MRF


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Media Resource Function Processor (MRFP) Requirements

Interfaces:Mp (from MRFC) — H.248 Mb (bearer channels to CN) — RTP

Functions:Announcements (audio and video)Conference (three parties, multiple parties)Transcoding — video, audio, wideband audio DTMF in-band and out-of-band detection

AS

S-CSCF MRFC

MRFP

Mb

Mp

iSC

IMS CN

Mr


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Media Gateway (MGW) Requirements

Interfaces:CS connection to CS networkMb (bearer channels to CN) —RTP etcMc from MGCF (H.248, etc.)

Functionality:Transcoding

UE codecs to IMS CN encodingsPSTN (and CS PLMN) to IMS CN encodings

CN codecs (TS 26.235) include:AMR, AMR-WB, H.263, MPEG4

Send and receive DTMF in-band and out-of-band

S-CSCF MGCF

MGW

Mb

Mc

CS

IMS CN

CS Network

Mj

BGCF

Mg


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MG 7000A Media Processing Blade


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On-board PS

Farm of DSPsExpansion Slot

1000BT GIGE

Interfaces

Power; IPMI

PPC Controllers

RJ 21; 8x T1/E1/J1 ea.

Dual GIGE (base fabric)

Rear Transition

Module with EC ASICs

Craft PortBase and

Switch Fabric

Connections

MG 7000A


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MG 7000A Features

Media services for voice, video, and faxFunctions: audio/video play and record; tone detection and generation; audio conferencing; fax (T.37 and T.38)VoIP and PSTN network interfacesWide codec selectionUp to 1000 announcement channels; 720 audio server channels; 360video server channels with any codec


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Client Machine Client Machine

Natural Access MX on MG 7000A

APPNatural Access MX Client

MG 7000A

TCP/IP

Or SCTP

SNMP/HTTP

Telnet

Management APP

CIFS/NFS RTP/TDM


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MG 7000AMG 7000A

Natural Access MX Runtime EnvironmentNatural Access MX Runtime Environment

Building Services

VoIP ServicesVoIP ServicesSIP ServicesSIP Services TDM ServicesTDM Services OAM ServicesOAM Services

Ethernet InterfacesEthernet Interfaces PSTN InterfacesPSTN Interfaces

ServiceService

Natural Access MXClient

Natural Access MXClient

Windows or POSIXEnvironment

Windows or POSIXEnvironment

SIP, RTP T1, E1, ISDN

Service Logic (C/C++)Service Logic (C/C++)

MX Protocol


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Two Paths to Service Creation…Embedded Distributed

MG 7000AMG 7000A

ServiceService


MG 7000AMG 7000A


ServiceServiceServiceServiceServiceService


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Natural Access MX Service Examples

SIP Media ServerRFC 4240 (NetAnn)MSML, MSCML, etc.

IMS Media Resource Function ProcessorH.248 controller

SIP GatewaySIP-to-ISDN conversion and bearer conversion

IP Media GatewayH.248 or MGCP control of media channels

Video GatewaySIP to 3G-324M conversion


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AdvancedTCA System Examples


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MRFP Implementation

SHMC 1+1

CPU Blade

CPU Blade

PICMG 3.1 Switch

PICMG 3.1 Switch

MG 7000A

IP Router

IP Router

IP Network

ATCA Chassis

PICMG 3.1 Fabric Media Transport (GIGE)

PICMG3.0 Base(control)

10 GigRedundant

Ethernet LinksSHMC (1+1)

MG 7000A

MG 7000A

MG 7000A

MG 7000A

MG 7000A

MG 7000A

MG 7000A

Control LinkRedundant H.248

(Ethernet)


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MRF ProcessorDistributed Service with MG 7000A Blades

1+1 N+11+1

Fully redundant elements in ATCAUp to ten media blades per shelf

10,000 announcement channels7,200 audio server channels3,600 video server channels

CPU

MRFPController

(H.248)

Media BladesMG 7000A

EthernetSwitches


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MRFP Controller Blade

COTS CPU1+1 Failover

H.248 Media Control

SNMP Management

Media Blade Resource Manager

Media Blade Controller

ATCA ShelfManager

MRF-C Interface

HAManager

WebConsole


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MGW Implementation

SHMC 1+1

CPU Blade

CPU Blade

IP Router

IP RouterOptical Cross

Connect

Circuit SwitchedNetwork

Control LinkRedundant H.248

(Ethernet)

ATCA Chassis

PICMG 3.0 Base

Redundant Link(3+1)

STMO Links

10 Gig Redundant

Ethernet LinksSHMC (1+1)

MG 7000A

MG 7000A

MG 7000A

MG 7000A

MG 7000A

MG 7000A

MG 7000A

MG 7000A

(control)

PICMG 3.1 Fabric Media Transport (GIGE)

PICMG 3.1 Switch

PICMG 3.1 Switch


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MRF Blade ElementsVoiceXML Server

Incorporates G.711 IP media serverSIP and RTP connections; MRCP for speech servicesVoiceXML 2.1, SSML, SNMP, Web console, OSP interface

IP Media ServerBased on MG 7000AAnnouncements, transcoding, IVR, and conferencingSIP and MSML control, SNMP

Video TranscoderReal-time video format conversion and rate adaptationMPEG-4 to H.263 transcoding (H.264 roadmap)CIF & QCIF image sizes; dynamic text overlay

Speech Resource ServerSpeech services from NuanceMRCP interface; RTP mediaSpeech recognition and text-to-speech


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For More InformationVisit NMS —http://www.nmscommunications.com/atcaRead Brough Turner’s article in CompactPCI and AdvancedTCA Systems magazine http://www.compactpci-systems.com/articles/id/?374Visit PICMG —http://www.picmg.org/newinitiative.stm

http://www.nmscommunications.com/atca

http://www.compactpci-systems.com/articles/id/?374

http://www.picmg.org/newinitiative.stm


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AdvancedTCA Ecosystem

Request an AdvancedTCA Ecosystem poster from NMS — www.nmscommunications.com/atca

http://www.nmscommunications.com/atca


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Upcoming Events

TradeshowsSpeechTEK East

New York, NY — August 7 –10VoIP Developer Conference

Santa Clara, CA — August 8 –10Fall VON

Boston, MA — September 11 – 14Webinars

Demystifying IMS Interoperability July 11

http://www.nmscommunications.com/News/Events/Events/VONEurope.htm

http://www.nmscommunications.com/News/Events/Events/FallVON2006.htm

http://www.nmscommunications.com/News/Events/Events/july06webinar.htm


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2006 Developer Conferences

EMEA Developer ConferenceSeptember 19 – 20, Prague, Czech Republic, Marriott Hotel

Americas Developer Conference October 3 – 4, Scottsdale, Arizona, Scottsdale PlazaResort

Asia Developer ConferenceOctober 31 – November 1, Kuala Lumpur, Malaysia, Sheraton Hotel

For more information, go to www.nmscommunications.com/devcon06613webinar

http://www.nmscommunications.com/devcon06613webinar


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N M S COMMUNICATIONS

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