State-of-the-art IMS Media Processor Technology · PDF fileThe New 3G-NGN MGW Functionality: Other Requirements and Trends • 3G-NGN MGW architectural directions – Multi-role and

State-of-the-art IMS Media Processor TechnologyVinay RaoSenior Manager of WW Field Applications Engineering

On behalf of Majid Foodeei, Ph.D.Director of Strategic Technical Marketing

Centillium Communications, Inc.

www.voipdeveloper.comAugust 8-10, 2006

Santa Clara, CaliforniaHyatt Regency Santa Clara

Agenda

• MGW and MRFP components in IMS architecture – Why/how IMS provides advantages in multimedia service delivery – MGW and MRFP key IMS blocks

• Requirement summary for MGW • Requirement summary for MRFP• Central role of enabling silicon (SoC)

– Meet the challenges of 3G-NGN MGW (IMS MGW/MRFP)– Requirement implications of building IMS MGW/MRFP

• Steps of building an IMS gateway with low risk and fast time-to-market– Hardware: system, board, silicon– Software: common system solution approach and advantages

over traditional approach



Fixed MobileB

roadband

Fixed Mobile Broadband (FMB) Convergence and IMS Drivers

• Convergence– Fixed, mobile, broadband – Convergence is reality

• IMS motivations– New services and revenue– Fast time-to-market – Harmonized (any terminal)– Lower infrastructure cost

• IMS technology components– IP … (while keeping legacy)– SIP– Multimedia high compression/

quality and adaptation– Any access and IMS arch support



IMS Origins:Standards, 3G-NGN Architecture

2006200520042003

Rel. 5.0

IMS

Rel. 6.0

IMS

Rel. 0

MMD

* IP multimedia subsystem (IMS), multimedia domain (MMD)

Rel. A

MMD

Rel. B

MMD

Rel. 1.0

NGN

Rel. 7.0

IMS

Rel. 2.0

NGN

OMA

Rel. 1.0

NGN FG

Rel. 4.0

20022001

Other



TISPAN NGN Architecture

Resource and Admission Control Functionality

RACS

Based on3GPP IMS

IP ConnectivityAccess NetworkAnd related functionality

Network AttachmentFunctionality

NASS

Other Multimedia Components …

Streaming Services (RTSP-based)

PSTN / ISDN Emulation(SIP-I based)

Applications

Core Transport Network

3GPP IP-CAN

Access Transport Network

IP

3GPP Terminals

NGN Terminals

LegacyTerminals

CustomerNetworks

DataBase

Other N

etworks

“Go”interface

“Go”interface

IP Multimedia Component (Core IMS)

(SIP-based)

PSTN / ISD

N

MBG

TGW

ICF

GW

GW

LegacyTerminals

NGN Terminals

LegacyTerminals

* Diagram from ETSI TISPAN Ref.



The New 3G-NGN MGW Functionality: TISPAN NGN fun. arch. Rel 1.

• Media gateway function (MGF)*– The residential MGF (R-MGF) is located on customer premises– The access MGF (A-MGF) resides on the network operator’s premises

(IP access network or core network)– The trunking MGF (T-MGF)** resides in the boundary between an IP core

network and the PSTN/ISDN• Media resource function processor (MRFP)

– Specialized resource processing functions beyond those available in media gateway functions

– Multimedia conferences – Multimedia announcements– IVR capabilities – Media content analysis * From Rel 1. Doc

** Same as IMS-MGW in 3GPP



IMS Common Platform FMC MGW and MRFP Vision, and IMS Media Processor (Entropia) in IMS MRFP/MGW

• Common HW/SW IMS MGW/MRFP– Safeguards future network deployments – Accelerates delivery of real-time

multimedia services – Enables fixed mobile convergence today!

• Single, all-in-one, common software – PSTN – NGN-VoIP – GSM/W-CDMA/3GPP – CDMA2000/3GPP2 – Next-gen session boarder controller

(SBC) with media fn.– Media services

• Announcements/rec• Rich conf.• Rich and programmable tones• Video and other (roadmap)

3GPP (WCDMA)3GPP (WCDMA)(& TD(& TD--SCDMA China)SCDMA China)

3GPP2 (CDMA Evolution)3GPP2 (CDMA Evolution)

PSTN/PSTN/PLMNPLMNIPIP

MRFP

IMS-MGWMGF

MMbb

MMbb

MTA

IMSIMS

MGCF

MRFC

Other Blocks

BearerBearer

ControlControl

BB AccessBB Access

V2

V2

IMS Media IMS Media SoCSoC(Entropia)(Entropia)



The New 3G-NGN MGW Functionality: Other Requirements and Trends

• 3G-NGN MGW architectural directions– Multi-role and application: software configured

• Same GW can be configured for wireline or wireless• NGN MGF and/or MRFP

– Centralized and decoupled from access type, with advantages of:• NGN cost savings• Time-to-market• Multi-vendor interoperability

• Diverse functionality beyond basic VoIP (EC, codecs, voice/fax/modem VoIP)– Conferences, gaming, CALEA, IP/ATM interworking, transcoding– Voice enhancement, protocol conversion, IPv6, QoS (TOS, MPLS)



Silicon Requirements for 3G-NGN

• Beyond basic features: codec/fax, EC, telephony, class (conf., caller ID) • MRFP and media server features

– Announcements and recording: ringback tones, etc.– IVR: feature programming, feature invocation, voicemail, etc.– Bridging: push-to-talk, three-way conferencing, rich multi-way conferencing, chat calls– Video and rich video conferencing (roadmap)– Speech recognition, text-to-speech, speaker verification (extern)

• New codecs and voice enhancement algorithms are complex– For example, WB-AMR/AMR+/AAC (3GPP), EVRC/SMV (3GPP2)– TTY/CTM– Codec transcoding with lower delay and complexity– G.VED (noise reduction, acoustic EC, ALC, TFO)– Voice quality monitoring– Voice recognition – Requires DSP MIPS



Silicon Requirements for 3G-NGN

• NGN systems require complex network processing– RTCP-XP, framing (e.g., 3G AMR), 3GPP TFO/TrFO, rate adaptation (Iu)– Complex coupled NP (ATM/IP) and non-DSP processing:

Iu, TFO/TrFO, CALEA – Single-chip ATM-IP interworking with and without transcoding– Fortified against DoS and network impairments– Distributed network processing is a scalable solution

• Silicon architecture and horsepower with low power– Few vendors ready for the challenge– Powerful, tightly-coupled DSP-NP, delay– Simultaneous COMMON single software support for multiple networks is an

important differentiation – Look for silicon vendors that can do this: What’s the capacity? At what cost?



An Example of NGN-SoC: Inside Entropia-III

Centillium Entropia III

RAMMIPSCPU

RAMMIPSCPU

AAL1Accel

SDRAMI/F

DMA

Uto

pia

Host I/F

AD

PC

M

CAS/HDLC

GM

AC

PO

S

4x CPU

RA

M

AD

PC

M

RA

M

AAL5Accel

6x DSP

TSI (

8192

x 1

360)

VCUSigmaDSP

VCUSigmaDSP

Jitte

r Buf

fer

RAM

Packet EnginesVoice

Engines

TDM

I/F

FIFO

MII/GMII

POS-PHY

Utopia2

TDMPorts

Dual-mode Host I/F(Motorola/PCI)

SDRAM SDRAM

EU

0E

U1

EU

2E

U3

XMEM YMEM

XMEM YMEM

64

Sigma DSP VCU

EU

9

EU

0

PMEM128

PMEM

80

64

Output ALU64 64

Sigma+VCU (SigmaPlus) Core•14 MAC/cycle (25 GMAC/sec Entropia-III)• For the DSP intensive tasks about 10x performance advantage over the conventional single MAC DSPs (such as TI C54x core)•At system level translating to ~5x advantage

Built for voice processing (EC&Codec)

1 Gop/sec NP+ HW Acc.

Integrated Advanced SoC and 3GIntegrated Advanced SoC and 3G--NGN System Software SuitesNGN System Software Suites

AD

PCM

H/W

3G3G--NGN System Software SuitesNGN System Software Suites(SoC integrated GW(SoC integrated GW--onon--chip)chip)

Advanced GWAdvanced GW--system APIsystem API

Feature A Feature Z

* Entropia III is the current-generation chip, in production for 3+ years. Contact Centillium for information on next-gen chip.

Other Blocks



FMB Convergence and IMS Single Common Software SoC

“Fixed” VoIP

CD

MA2

000/

3GPP

2M

edia

Ser

ver/M

RFP

WiMAX/WiFi/ULAdvanced Transcoding

and Interworkin

g

GSM/W-CDMA/3GPP

Single, Common,All-in-one IMS Software Suite



FMC IMS MGW/MRFP Single, All-in-one Common Software

VoIP/Wireless “Basic”

Wireline/Wireless NB/WB CodecsEcho Cancellation, Fax/Modem

Telephony TonesCID & Class F.

IP/ATM Protocols

Media Services

Unlimited Announcement128-way Conferencing

RecordingTelephony Function Resources

……

GSMGSM--WCDMA Wireless AdvancedWCDMA Wireless AdvancedTrFO /TFO

3GPP Protocols (e.g., Iu-UP/NB-UP)Voice Enhancement (AEC, ALC, NS)AMR-G711 TranscodingHand-over and LI Complex ForkingCTM/TTY

CDMA2000 Wireless AdvancedCDMA2000 Wireless AdvancedTrFO /TFO

CDMA2000/3GPP2 ProtocolsVoice Enhancement (AEC, ALC, NS)EVRC-G711 TranscodingCTM/TTY



Steps of Building the MGW/MRFP (SoC Focus)

• Chassis and carrier card– High-level function architecture: Media processor, main control,

redundancy, etc.– Form factor: ATCA or proprietary– Flow and function connections: Backplane/cross-connect, high-throughput

(GETHER, TDM …)• Media processor card with advanced IMS media processor SoC

– Media processor on daughter card and/or carrier card – 4-12 Centillium Entropia-III (or contact Centillium for next-gen ) IMS media

processor SoC for the industry’s best processing power– Supports multiple gigabit Ethernet– Includes Layer-2 switch with direct network connection for SoC routing – Highest system/board/chip density and lowest power/channel



Steps of Building the Software

• A single, common, all-in-one software – 3GN IMS media processing VoP unified software suites– Basic VoP– Advanced VoIP for IMS such as transcoding and interworking– Advanced GSM/W-CDMA/3GPP functionality– Advanced CDMA2000/3GPP2 functionality– Advanced MRFP (media server) functionality

• Dynamic software configuration– Select application or combine feature sets– Don’t pay for individual software suites

• High-level system API– A couple of system-level API steps: (complex) call is up!!



Conclusion

• IMS is reality in the making, with benefits to all• Increased and complex requirements for the IMS (3G-NGN)

MGW and media processing blocks • Central role of enabling silicon (SoC) and IMS media

processor-on-a-chip HW and SW• Advanced SoCs targeting this telecom architectural evolution

– Meeting the current and future challenges of 3G-NGN MGW– Silicon architecture built from the ground-up – Accompanying complex software

• Steps in building the HW/SW of IMS MGW/MRFP products with focus on IMS-media-SoC

Thank you

Visit www.centillium.com to learn more about Centillium end-to-end NGN VoP, CPE VoP, Atlanta and IMS-SoC Entropia product families

Majid Foodeei can be contacted at: [email protected]

Documents

State-of-the-art IMS Media Processor Technology · PDF fileThe New 3G-NGN MGW Functionality: Other Requirements and Trends • 3G-NGN MGW architectural directions – Multi-role and