state-of-the-art ims media processor technology · pdf filethe new 3g-ngn mgw functionality:...
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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
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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
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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
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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.
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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
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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)
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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)
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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
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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?
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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
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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
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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
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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
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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!!
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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]