ETSI TR 185 013 V3.1.1 (2009-05)

Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Codecs for customer network devices

DTR/TISPAN-05022-NGN-R3

General Information

• Status: Published
• Publication Date: 11-May-2009
• Technical Committee: TISPAN 5 - TISPAN NGN Home Networking
• Current Stage: 12 - Completion
• Due Date: 10-Apr-2009
• Completion Date: 12-May-2009

Standards Content (Sample)

ETSI TR 185 013 V3.1.1 (2009-05)
Technical Report


Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
Codecs for customer network devices

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2 ETSI TR 185 013 V3.1.1 (2009-05)



Reference
DTR/TISPAN-05022-NGN-R3
Keywords
codec
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3 ETSI TR 185 013 V3.1.1 (2009-05)
Contents
Intellectual Property Rights . 4
Foreword . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 9
4 Codecs for telephony services . 10
4.1 Services . 10
4.2 Codecs . 10
4.2.1 General . 10
4.2.2 Narrow band speech codecs . 11
4.2.3 Wide band speech codecs . 11
4.2.3.1 G.722 . 11
4.2.3.2 G.729.1 . 12
4.2.3.3 AMR-WB/G.722.2 . 13
4.2.3.4 EVRC-WB . 14
4.2.3.5 Wideband speech codecs recommendation status . 15
4.2.4 Video . 16
4.2.4.1 General . 16
4.2.4.2 H.263 . 16
4.2.4.3 MPEG-4 Visual (Part2) . 16
4.2.4.4 H.264/AVC . 16
4.2.4.5 SVC amendment 3 of MPEG4-AVC/H.264 . 16
5 Codecs for IPTV services . 17
5.1 Services . 17
5.2 Codecs . 17
5.2.1 Video . 17
5.2.1.1 General . 17
5.2.1.2 MPEG-2 . 18
5.2.1.3 MPEG-4 AVC/H.264 . 18
5.2.1.4 SVC amendment 3 of MPEG4-AVC/H.264 . 19
5.2.2 Audio . 19
5.2.2.1 General . 19
5.2.2.2 HE AAC v2 . 19
5.2.2.3 AMR-WB+ . 20
5.2.2.4 AC3 and enhanced AC3 . 21
5.2.2.5 Audio codecs recommendation status . 21
History . 23

ETSI

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4 ETSI TR 185 013 V3.1.1 (2009-05)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Report (TR) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN).
ETSI

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5 ETSI TR 185 013 V3.1.1 (2009-05)
1 Scope
The objective of the present document is to define the set of codecs supported by CNDs for NGN services, on the basis
of the service requirements contained in TS 181 005 [i.1] and TS 185 005 [i.4], and with reference to the CNDs
architecture defined in TS 185 006 [i.11] (for communication services) and TS 185 009 [i.5] (for IPTV services).
Work will address AV/broadcast codecs for IPTV and Conversational codecs for telephony services. It will be fully
consistent with the set of codecs identified in TS 181 005 [i.1]. When TS 181 005 [i.1] already specifies a list of codecs
for voice services, no new codecs will be added, no codec will be removed nor downgraded in status (mandatory,
recommended optional) within this list.
For each service (mainly person to person communication and IPTV) work will be focused on defining subset of
default/mandatory which is the only way to guarantee interoperability and avoid transcoding a minimum set of codecs
to be supported will be defined.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
Not applicable.
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] ETSI TS 181 005: "Telecommunications and Internet Converged Services and Protocols for
Advanced Networking (TISPAN); Service and Capability Requirements".
[i.2] ETSI TS 181 014: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Requirements for network transport capabilities to support
IPTV services".
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6 ETSI TR 185 013 V3.1.1 (2009-05)
[i.3] ETSI TS 181 016: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Service Layer Requirements to integrate NGN Services and
IPTV".
[i.4] ETSI TS 185 005: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Services requirements and capabilities for customer networks
connected to TISPAN NGN".
[i.5] ETSI TS 185 009: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN) Architecture & reference points of a customer network device
for IMS based IPTV services".
[i.6] ETSI TS 126 114: "Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia
Subsystem (IMS); Multimedia telephony; Media handling and interaction (3GPP TS 26.114
version 8.2.1 Release 8)".
[i.7] ETSI TS 126 235: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Packet switched conversational multimedia
applications; Default codecs (3GPP TS 26.235 Release 8)".
[i.8] ETSI TS 126 236: "Universal Mobile Telecommunications System (UMTS); LTE; Packet
switched conversational multimedia applications; Transport protocols (3GPP TS 26.236
Release 8)".
[i.9] ETSI TS 102 005: "Digital Video Broadcasting (DVB); Specification for the use of Video and
Audio Coding in DVB services delivered directly over IP protocols".
[i.10] ETSI TS 101 154: "Digital Video Broadcasting (DVB); Specification for the use of Video and
Audio Coding in Broadcasting Applications based on the MPEG-2 Transport Stream".
[i.11] ETSI TS 185 006: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Customer Devices architecture and Reference Points".
[i.12] ITU-T Recommendation G.711: "Pulse Code Modulation (PCM) of voice frequencies".
[i.13] ITU-T Recommendation G.722: "7 kHz audio-coding within 64 kbit/s".
[i.14] ITU-T Recommendation G.191: "Software tools for speech and audio coding standardization".
[i.15] ITU-T Recommendation G.722 Appendix II: "Digital test sequences for the verification of the
G.722 64 kbit/s SB-ADPCM 7 kHz codec".
[i.16] ETSI TS 102 527-1: "Digital Enhanced Cordless Telecommunications (DECT); New Generation
DECT; Part 1: Wideband speech".
[i.17] ETSI TR 102 570: "Digital Enhanced Cordless Telecommunications (DECT); New Generation
DECT; Overview and Requirements".
[i.18] IETF RFC 3551: "RTP Profile for Audio and Video Conferences with Minimal Control".
[i.19] ITU-T Recommendation G.722 Appendix III: "A high quality packet loss concealment algorithm
for G.722".
[i.20] ITU-T Recommendation G.722 Appendix IV: "A low-complexity algorithm for packet loss
concealment with G.722".
[i.21] ITU-T Recommendation G.729.1: "G.729-based embedded variable bit-rate coder: An 8-32 kbit/s
scalable wideband coder bitstream interoperable with G.729".
[i.22] ITU-T Recommendation G.729.1 Amendment 3: "Extension of the G.729.1 low delay mode
functionality to 14 kbit/s, and corrections to the main body and annex B".
[i.23] IETF RFC 4749: RTP Payload Format for the G.729.1 Audio Codec.
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7 ETSI TR 185 013 V3.1.1 (2009-05)
[i.24] ETSI TS 126 190: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Speech codec speech processing functions; Adaptive
Multi-Rate - Wideband (AMR-WB) speech codec; Transcoding functions (3GPP TS 26.190
Release 8)".
[i.25] ITU-T Recommendation G.722.2: "Wideband coding of speech at around 16 kbit/s using Adaptive
Multi-Rate Wideband (AMR-WB)".
[i.26] 3GPP2 C.S0014-B v1.0: "Enhanced Variable Rate Codec, Speech Service Option 3 and 68 for
Wideband Spread Spectrum Digital Systems".
[i.27] VoIP Codecs and Protocols, ftp: //ftp.3gpp2.org/TSGC/Working/2007/2007-05-SanDiego/
TSG-C-2007-05-SanDiego/WG1/SWG12/C12-20070514-012AR1--Proposed-SC-C.S0085-0-
VoIP-Spec.doc.
[i.28] 3GPP2, C11-20061204-005-Proposed V&V -Ballot-Text-EVRC-Release-C-Specification.zip.
[i.29] ISO/IEC 14496-3 (2007): "Information technology - Coding of audio-visual objects - Part 3:
Audio, including Amd1 and Amd2".
[i.30] ETSI TS 126 290 (V7.0.0): "Digital cellular telecommunications system (Phase 2+); Universal
Mobile Telecommunications System (UMTS); Audio codec processing functions; Extended
Adaptive Multi-Rate - Wideband (AMR-WB+) codec; Transcoding functions
(3GPP TS 26.290 version 7.0.0 Release 7)".
[i.31] ETSI TS 102 366: "Digital Audio Compression (AC-3, Enhanced AC-3) Standard".
[i.32] ETSI TS 126 304: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Extended Adaptive Multi-Rate - Wideband
(AMR-WB+) codec; Floating-point ANSI-C code (3GPP TS 26.304 version 8.0.0 Release 8)".
[i.33] ETSI TS 126 273: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; ANSI-C code for the fixed-point Extended Adaptive
Multi-Rate - Wideband (AMR-WB+) speech codec (3GPP TS 26.273 version 8.0.0 Release 8)".
[i.34] IETF RFC 4352: "RTP Payload Format for the Extended Adaptive Multi-Rate Wideband
(AMR-WB+) Audio Codec".
[i.35] ETSI TR 126 936: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Performance characterization of 3GPP audio codecs
(3GPP TR 26.936 version 8.0.0 Release 8)".
[i.36] IETF RFC 4184: "RTP Payload Format for AC-3 Audio".
[i.37] IETF RFC 3690: "RTP Payload Format for Transport of MPEG-4 Elementary Streams".
[i.38] ETSI TS 126 401: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; General audio codec audio processing functions;
Enhanced aacPlus general audio codec; General description (3GPP TS 26.401 version 8.0.0
Release 8)".
[i.39] IETF RFC 4867: "RTP Payload Format and File Storage Format for the Adaptive Multi-Rate
(AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs".
[i.40] IETF RFC 4788: "RTP payload format for Enhanced Variable Rate Wideband Codec (EVRC-WB)
and media subtype updates for EVRC-B codec".
[i.41] ITU-T Recommendation H.263 (2005): "Video coding for low bit rate communication".
[i.42] ITU-T Recommendation H.264 | ISO/IEC 14496-10: "Advanced video coding for generic
audiovisual services".
[i.43] SMPTE 421M Television - VC-1 Compressed Video Bitstream Format and Decoding Process.
[i.44] ITU-T Recommendation G.729: "Coding of speech at 8 kbit/s using conjugate-structure
algebraic-code-excited linear prediction (CS-ACELP)".
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8 ETSI TR 185 013 V3.1.1 (2009-05)
[i.45] ISO/IEC 13818-2: "Information technology -- Generic coding of moving pictures and associated
audio information".
[i.46] ETSI TS 126 171: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Speech codec speech processing functions; Adaptive
Multi-Rate - Wideband (AMR-WB) speech codec; General description (3GPP TS 26.171
Release 8)".
[i.47] ETSI TS 126 173: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; ANSI-C code for the Adaptive
Multi-Rate - Wideband (AMR-WB) speech codec (3GPP TS 26.173 Release 8)".
[i.48] ETSI TS 126 204: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Speech codec speech processing functions; Adaptive
Multi-Rate - Wideband (AMR-WB) speech codec; ANSI-C code (3GPP TS 26.204 Release 8)".
[i.49] ETSI TS 126 194: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Speech codec speech processing functions; Adaptive
Multi-Rate - Wideband (AMR-WB) speech codec; Voice Activity Detector (VAD)
(3GPP TS 26.194 Release 8)".
[i.50] ETSI TS 126 192: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Speech codec speech processing functions; Adaptive
Multi-Rate - Wideband (AMR-WB) speech codec; Comfort noise aspects (3GPP TS 26.192
Release 8)".
[i.51] ETSI TS 126 191: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Speech codec speech processing functions; Adaptive
Multi-Rate - Wideband (AMR-WB) speech codec; Error concealment of erroneous or lost frames
(3GPP TS 26.191 Release 8)".
[i.52] ISO/IEC 14496-10 (2008): "Information technology -- Coding of audio-visual objects -- Part 10:
Advanced Video Coding".
[i.53] ITU-T Recommendation H.320:"Narrow-band visual telephone systems and terminal equipment".
[i.54] ITU-T Recommendation H.321:"Adaptation of H.320 visual telephone terminals to B-ISDN
environments".
[i.55] ITU-T Recommendation H.322:"Visual telephone systems and terminal equipment for local area
networks which provide a guaranteed quality of service".
[i.56] ITU-T Recommendation H.323:"Packet-based multimedia communications systems".
[i.57] ITU-T Recommendation G.726:"40, 32, 24, 16 kbit/s Adaptive Differential Pulse Code
Modulation (ADPCM)".
[i.58] ITU-T Recommendation H.245: "Control protocol for multimedia communication".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Customer Network Device (CND): device enabling the final user to have a direct access to services through a specific
user interface as defined in TS185006 [i.11]
NOTE 1: A dual-mode (fixed+mobile) CND is a fixed CND when connected to a fixed access and is a mobile CND
when connected to a mobile access.
NOTE 2: In case the CND consists of more than one part, the codec function may be built in any part of the CND.
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9 ETSI TR 185 013 V3.1.1 (2009-05)
fixed CND: CND connected to the TISPAN NGN network either via a corded interface or a fixed-wireless interface
(Wi-Fi, Bluetooth or DECT/DECT-NG)
fixed narrowband CND: fixed CND supporting narrowband speech
fixed wideband CND: fixed CND supporting wideband speech
mobile CND: CND connected to a mobile network such as a 3GPP or 3GPP2 network via the mobile interface
mobile narrowband CND: mobile CND supporting narrowband speech
mobile wideband CND: mobile CND supporting wideband speech
NOTE: Wideband CNDs are also required to support narrowband speech.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AAC Advanced Audio Coding
ACELP Algebraic Code-Excited Linear Prediction
ADPCM Adaptive Differential Pulse-Code Modulation
AMR Adaptive Multi-Rate
AMR-WB Adaptive Multi-Rate - Wide Band
AVC Advanced Video Coding
CELP Code Excited Linear Prediction
CND Customer Network Device
CPN Customer Premises Network
DECT Digital Enhanced Cordless Telecommunications
DECT-NG Digital Enhanced Cordless Telecommunications - Next Generation
DTH Direct To Home television
DTS Digital Theatre System
DTT Digital Terrestrial Television
DTX Discontinuous Transmission system
DVB Digital Video Broadcasting
EFR Enhanced Full Rate
EVRC Enhanced Variable Rate Coding
EVRC-B Enhanced Variable Rate Coding-narrow Band
EVRC-WB Enhanced Variable Rate Coding-Wide Band
FEC Frame Erasure Concealment
HF High Frequency
IMS IP Multimedia Subsystem
IP Internet Protocol
IPTV Internet Protocol TeleVision
ISDN Integrated Services Digital Network
LC Low Complexity
LF Low Frequency
LPC Linear Predictive Coding
LSP Line Spectrum Pair
MBMS Multimedia Broadcast/Multicast Service
MDCT Modified Discrete Cosine Transform
MIPS Million Instructions Per Second
MMS Multimedia Messaging Service
MPEG Moving Picture Experts Group
MPEGLA MPEG Lisenced Administrator
MPEGTS MPEG Transport Stream
NGN Next Generation Network
PCM Pulse-Code Modulation
PoC Push-to-talk over Cellular
PS Parametric Stereo
PSS Packet-switched Streaming Service
PSTN Public Switched Telephone Network
ETSI

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10 ETSI TR 185 013 V3.1.1 (2009-05)
QMF Quadrature Mirror Filters
RTP Real-Time Protocol
SBR Spectral Band Replication
SNR Signal-to-Noise Ratio
SVC Scalable Video Coding
TDAC Time-Domain Aliasing Cancellation
TDBWE Time-Domain BandWidth Extension
VOD Video On Demand
VoIP Voice over IP
WMOPS Weighted Millions of Operations Per Second
4 Codecs for telephony services
4.1 Services
Services to be supported by conversational speech codecs are IP multimedia services including a voice and/or audio
conversational or interactive voice/audio session. Especially, the following services have been specified in
TS 181 005 [i.1]:
• PSTN/ISDN emulation service.
• Video telephony service.
4.2 Codecs
4.2.1 General
Speech codecs for telephony services are supported by Customer Network Devices (CND) defined in draft
TS 185 006 [i.11] as final devices allowing customers to have access to speech & audio services. This can be a non IP
or IP (IMS capable or not) devices either fixed or mobile.
For speech conversational codecs for telephony services, both encoder and decoder have to be supported in CND
whereas only the decoder has to be supported in receivers for broadcast/streaming services. This puts design constraints
on speech codecs regarding encoding and decoding delay limitation (for conversation interactivity), encoder and
decoder complexity limitation and optimization of quality performance for speech.
The voice encoded bandwidth can be narrow band (300 Hz to 3 400 Hz) or wide band (50 Hz to 7 000 Hz) range (or
even further extended for some applications). Wideband coding allows enhancing decisively the voice quality: voice is
better encoded over all its significant frequencies which produces a feeling of more transparent communication, a
greatly improved sensation of presence and an increased intelligibility and listening comfort.
TS 181 005 [i.1] specifies that "the NGN shall allow end-to-end negotiation of any codec between NGN entities
(terminal, network elements)". The interoperability without transcoding can be consequently achieved if one common
codec can be negotiated from end to end between CNDs.
If no common codec is supported between CNDs, transcoding function (decoding and re encoding between the 2 coding
formats) has to be implemented (in telco or customer network gateways). However, transcoding degrade quality, add
delay, increase network costs and should be consequently reduced. As a consequence, encoding/decoding operations
should occur only in CNDs and should be avoided as much as possible in all other devices of the Customer Premises
Network (like Customer Network Gateway etc.).
In order to ensure minimum interoperability for narrow band voice services, ETSI 181 005 [i.1] specifies that "narrow
band speech encoded format ITU-T Recommendation G.711 [i.12] must be supported". To further improve this
interoperability ITU-T Recommendation G.729 [i.44], AMR and EVRC/EVRC-B are recommended. In addition and if
wideband optional capability is supported, a restricted list of recommended wideband codecs consisting in
ITU-T Recommendation G.722 [i.13], AMR-WB, ITU-T Recommendation G.729.1[i.21] and EVRC WB is specified
for better wideband voice interoperability and quality.
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11 ETSI TR 185 013 V3.1.1 (2009-05)
NOTE: The standardized speech codecs for telephony services considered in this clause are subject to license
costs according to ITU-T, ETSI/3GPP or 3GPP2 IPR Policies except
ITU-T Recommendation G.711 [i.12] and ITU-T Recommendation G.722 [i.13] that are royalty free
codecs.
4.2.2 Narrow band speech codecs
For narrow band speech codecs, ITU-T Recommendation G.711 [i.12] is already specified in TS 181 005 [i.1] as
mandatory coding format. It is stated that: "In order to enable interworking between the NGN and other networks
(including the PSTN, mobile networks and other NGNs) the NGN must be capable of receiving and presenting G.711
coded speech when interconnected with another network".
ITU-T Recommendation G.711 [i.12] as interoperability format is already widely used for interoperability between
deployed networks and terminals (these are CNDs) including between fixed VoIP or PSTN and 3GPP mobile 2G/3G
networks and terminals (CNDs). In order to ensure end to end interoperability and for consistency of ETSI standard
specifications it is recommended that the Customer Premises Network ("CPN", as defined in draft TS 185 006 [i.11])
will be capable of receiving and presenting ITU-T Recommendation G.711 [i.12] coded speech
...