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SIST EN 300 175-8 V2.4.1:2012

(Main)

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 8: Speech and audio coding and transmission

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 8: Speech and audio coding and transmission

Update the standard to include new functions defined for NG DECT. Support of the new mechanisms introduced in NG-DECT part 5. Enhancement of security.

Digitalne izboljšane brezvrvične telekomunikacije (DECT) - Skupni vmesnik (CI) - 8. del: Kodiranje in prenos govora in zvoka

Posodobitev standarda z vključitvijo novih funkcij, določenih za NG DECT. Podpora novih mehanizmov, uvedenih v 5. delu NG DECT. Izboljšanje varnosti.

General Information

Status
Published
Publication Date
10-May-2012
ICS
33.070.30 - Digital Enhanced Cordless Telecommunications (DECT)
Technical Committee
MOC - Mobile Communications
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
08-May-2012
Due Date
13-Jul-2012
Completion Date
11-May-2012
Ref Project
ETSI EN 300 175-8 V2.4.1 (2012-04) - Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 8: Speech and audio coding and transmission

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EN 300 175-8 V2.4.1:2012 - BARVEEN 300 175-8 V2.4.1:2012 - BARVE
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EN 300 175-8 V2.4.1:2012 - BARVE
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 8: Speech and audio coding and transmission33.070.30'(&7Digital Enhanced Cordless Telecommunications (DECT)ICS:Ta slovenski standard je istoveten z:EN 300 175-8 Version 2.4.1SIST EN 300 175-8 V2.4.1:2012en01-junij-2012SIST EN 300 175-8 V2.4.1:2012SLOVENSKI
STANDARD



SIST EN 300 175-8 V2.4.1:2012



ETSI EN 300 175-8 V2.4.1 (2012-04) Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 8: Speech and audio coding and transmission
European Standard SIST EN 300 175-8 V2.4.1:2012



ETSI ETSI EN 300 175-8 V2.4.1 (2012-04) 2
Reference REN/DECT-000264 Keywords 7 kHz, audio, broadband, codec, DECT, handsfree, IMT-2000, loudspeaking, mobility, narrowband, quality, radio, speech, TDD, TDMA, telephony, terminal ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88
Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2012. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. SIST EN 300 175-8 V2.4.1:2012



ETSI ETSI EN 300 175-8 V2.4.1 (2012-04) 3 Contents Intellectual Property Rights . 11 Foreword . 11 1 Scope . 12 2 References . 12 2.1 Normative references . 12 2.2 Informative references . 14 3 Definitions, symbols and abbreviations . 15 3.1 Definitions . 15 3.2 Symbols and abbreviations . 16 4 Configurations . 18 4.1 Reference configuration . 18 4.1.1 Basic configuration . 18 4.1.2 Portable Part (PP) . 19 4.1.2.1 Functional organization . 19 4.1.2.2 Volume control . 20 4.1.3 Fixed Part (FP) . 20 4.1.3.1 Digital interface . 20 4.1.3.2 Analog interface . 22 4.1.3.3 FP adaptive volume control . 22 4.2 Test configurations . 22 5 Encoding . 22 5.1 32 kbit/s full term (ADPCM) G.726 . 22 5.1.1 Algorithm . 22 5.1.2 Bit sequence . 23 5.1.3 Characteristics of G.726 ADPCM codec . 23 5.2 64 kbit/s PCM G.711 . 23 5.2.1 Algorithm . 23 5.2.2 Bit sequence . 23 5.2.3 Characteristics of G.711 PCM codec . 24 5.2.4 Automatic detection of FAX/modem tone and switch to G.711 . 24 5.3 Wideband speech codec G.722 at 64 kbit/s . 24 5.3.1 Algorithm . 24 5.3.2 Bit sequence . 24 5.3.3 Characteristics of G.722 wideband codec . 24 5.3.4 Optional Packet Loss Concealment algorithm (PLC) . 25 5.4 Wideband speech codec G.729.1 up to 32 kbit/s . 25 5.4.1 Algorithm . 25 5.4.2 Bit sequence . 25 5.4.3 Characteristics of G.729.1 codec . 25 5.4.4 Packet Loss Concealment algorithm (PLC) . 26 5.4.5 Supported bit rate in DECT . 26 5.5 Super-wideband MPEG-4 speech and audio coding . 26 5.5.1 Algorithm . 26 5.5.2 64 kbit/s, MPEG-4 ER AAC-LD codec . 27 5.5.3 32 kbit/s, MPEG-4 ER AAC-LD codec . 27 5.6 Other codings . 27 6 Transmission aspects . 28 6.1 Relative level . 28 6.2 Acoustic reference level . 28 6.3 Volume control . 28 7 Audio specifications . 28 7.1 Overall description . 28 7.1.1 Introduction to DECT audio specifications . 28 7.1.2 Introduction to the audio types . 28 SIST EN 300 175-8 V2.4.1:2012



ETSI ETSI EN 300 175-8 V2.4.1 (2012-04) 4 7.1.3 List of Audio types . 29 7.1.4 Audio types for Portable Parts . 30 7.1.5 Audio types for Fixed Parts . 31 7.1.6 Complete DECT system . 31 7.1.7 Structure of the specification of the audio types . 31 7.1.8 Audio Types and codecs . 37 7.1.9 Audio Types and physical interfaces . 37 7.2 Audio types applicable to Portable Parts . 37 7.2.1 Performance levels of DECT Portable Parts (handsets). 37 7.2.2 Type 0: Reference PP (RePP) . 38 7.2.3 PP Type 1a: "Classic" GAP narrowband handset . 38 7.2.3.1 Introduction . 38 7.2.3.2 Compatible services and codecs . 39 7.2.3.3 Specification. 39 7.2.4 PP Type 1b: "Improved" GAP narrowband handset . 39 7.2.4.1 Introduction . 39 7.2.4.2 Compatible services and codecs . 39 7.2.4.3 Specification. 39 7.2.5 PP Type 1c: HATS-tested "standard" narrowband handset . 39 7.2.5.1 Introduction . 39 7.2.5.2 Compatible services and codecs . 40 7.2.5.3 Specification. 40 7.2.6 PP Type 1d: HATS-tested "improved" narrowband handset . 40 7.2.6.1 Introduction . 40 7.2.6.2 Compatible services and codecs . 40 7.2.6.3 Specification. 40 7.2.7 PP Type 3a: HATS tested narrowband "standard" loudspeaking handsfree . 40 7.2.7.1 Introduction . 40 7.2.7.2 Compatible services and codecs . 41 7.2.7.3 Specification. 41 7.2.8 PP Type 3b: HATS tested narrowband "improved" loudspeaking handsfree . 41 7.2.8.1 Introduction . 41 7.2.8.2 Compatible services and codecs . 41 7.2.8.3 Specification. 41 7.2.9 PP Type 2a: P.311-tested wideband handset. 41 7.2.9.1 Introduction . 41 7.2.9.2 Compatible services and codecs . 41 7.2.9.3 Specification. 42 7.2.10 PP Type 2b: HATS-tested "standard" wideband handset or headset . 42 7.2.10.1 Introduction . 42 7.2.10.2 Compatible services and codecs . 42 7.2.10.3 Specification. 42 7.2.11 PP Type 2c: HATS tested "improved" wideband handset or headset . 42 7.2.11.1 Introduction . 42 7.2.11.2 Compatible services and codecs . 42 7.2.11.3 Specification. 43 7.2.12 PP Type 4a: HATS tested wideband "standard" loudspeaking handsfree . 43 7.2.12.1 Introduction . 43 7.2.12.2 Compatible services and codecs . 43 7.2.12.3 Specification. 43 7.2.13 PP Type 4b: HATS tested wideband "improved" loudspeaking and handsfree . 43 7.2.13.1 Introduction . 43 7.2.13.2 Compatible services and codecs . 44 7.2.13.3 Specification. 44 7.2.14 PP Type 5a: super-wideband 14 kHz handset . 44 7.2.14.1 Introduction . 44 7.2.14.2 Compatible services and codecs . 44 7.2.14.3 Specification. 44 7.2.15 PP Type 5b: super-wideband 14 kHz loudspeaking handsfree . 44 7.2.15.1 Introduction . 44 7.2.15.2 Compatible services and codecs . 44 7.2.15.3 Specification. 44 SIST EN 300 175-8 V2.4.1:2012



ETSI ETSI EN 300 175-8 V2.4.1 (2012-04) 5 7.2.16 PP Type 6: PPs with external 2 wire, 3,1 kHz telephony interface . 44 7.2.16.1 Introduction . 44 7.2.16.2 Compatible services and codecs . 44 7.2.16.3 Specification. 45 7.3 Audio transmission types applicable to Fixed Parts . 45 7.3.1 FP Type 0: Reference FP (ReFP) . 45 7.3.2 FP Type 1a: "classical" Fixed Part for ISDN Network . 46 7.3.2.1 Introduction . 46 7.3.2.2 Compatible services and codecs . 46 7.3.2.3 Specifications . 46 7.3.2.3.1 Transcoding and equalization . 46 7.3.2.3.2 PP type detection . 47 7.3.2.3.3 Activation of audio processing functions . 47 7.3.2.3.4 Transmission specification . 47 7.3.3 FP Type 1b: "new" Fixed Part for ISDN Network . 47 7.3.3.1 Introduction . 47 7.3.3.2 Compatible services and codecs . 47 7.3.3.3 Specification. 48 7.3.3.3.1 Transcoding and equalization . 48 7.3.3.3.2 PP type detection . 48 7.3.3.3.3 Activation of audio processing functions . 48 7.3.3.3.4 Transmission specification . 49 7.3.4 FP Type 2: FP with analog 2-wire interface, 3,1 kHz service . 49 7.3.4.1 Introduction . 49 7.3.4.2 Compatible services, physical interfaces and codecs . 49 7.3.4.3 Specification. 49 7.3.4.3.1 Transcoding, equalization and conversion . 49 7.3.4.3.2 PP type detection and activation of audio processing functions . 49 7.3.4.3.3 Transmission specification . 50 7.3.5 FP Type 3: VoIP narrowband Fixed Part . 50 7.3.5.1 Introduction . 50 7.3.5.2 Compatible services, physical interfaces and codecs . 50 7.3.5.3 Specification. 51 7.3.5.3.1 Transcoding and equalization . 51 7.3.5.3.2 PP type detection . 51 7.3.5.3.3 Activation of audio processing functions . 51 7.3.5.3.4 Transmission specification . 52 7.3.6 FP Type 4: ISDN wideband Fixed Part . 52 7.3.6.1 Introduction . 52 7.3.6.2 Compatible services and codecs . 52 7.3.6.3 Specification. 52 7.3.6.3.1 Transcoding and equalization . 52 7.3.6.3.2 PP type detection . 52 7.3.6.3.3 Activation of audio processing functions . 53 7.3.6.3.4 Transmission specification . 53 7.3.7 FP Type 5: VoIP wideband Fixed Part . 53 7.3.7.1 Introduction . 53 7.3.7.2 Compatible services, physical interfaces and codecs . 53 7.3.7.3 Specification. 54 7.3.7.3.1 Transcoding and equalization . 54 7.3.7.3.2 PP type detection . 54 7.3.7.3.3 Activation of audio processing functions . 54 7.3.7.3.4 Transmission specification . 55 7.3.8 FP Type 6a: FP handling an Internal call inside a DECT FP (any service) . 55 7.3.8.1 Introduction . 55 7.3.8.2 Compatible services, physical interfaces and codecs . 55 7.3.8.3 Specification. 55 7.3.9 FP Type 6b: FP handling an n-party conference inside a DECT FP (any service) . 55 7.3.9.1 Introduction . 55 7.3.9.2 Compatible services, physical interfaces and codecs .
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• the multi-bearer control service.
It also specifies the logical channels that are used by the above mentioned services, and how they are multiplexed and
mapped into the Service Data Units (SDUs) that are exchanged with the Physical Layer (PHL).

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SIST EN 300 175-7 V2.9.1:2022(Main)
Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 7: Security features
ETSI EN 300 175-7 V2.9.1 (2022-03)

The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications
(DECT) Common Interface (CI).
The present document specifies the security architecture, the types of cryptographic algorithms required, the way in
which they are to be used, and the requirements for integrating the security features provided by the architecture into the
DECT CI. It also describes how the features can be managed and how they relate to certain DECT fixed systems and
local network configurations.
The security architecture is defined in terms of the security services which are to be supported at the CI, the
mechanisms which are to be used to provide the services, and the cryptographic parameters, keys and processes which
are associated with these mechanisms.
The security processes specified in the present document are each based on one of three cryptographic algorithms:
• an authentication algorithm;
• a key stream generator for MAC layer encryption; and
• a key stream generator plus a Message Authentication Code generator for CCM authenticated encryption.
The architecture is, however, algorithm independent, and either the DECT standard algorithms, or appropriate
proprietary algorithms, or indeed a combination of both can, in principle, be employed. The use of the employed
algorithm is specified in the present document.
Integration of the security features is specified in terms of the protocol elements and processes required at the Network
(NWK) and Medium Access Control (MAC) layers of the CI.
The relationship between the security features and various network elements is described in terms of where the security
processes and management functions may be provided.
The present document does not address implementation issues. For instance, no attempt is made to specify whether the
DSAA or DSAA2 should be implemented in the PP at manufacture, or whether the DSAA, DSAA2 or a proprietary
authentication algorithm should be implemented in a detachable module. Similarly, the present document does not
specify whether the DSC or DSC2 should be implemented in hardware in all PPs at manufacture, or whether special
PPs should be manufactured with the DSC, DSC2 or proprietary ciphers built into them. The security architecture
supports all these options, although the use of proprietary algorithms may limit roaming and the concurrent use of PPs
in different environments.
Within the standard authentication algorithms, DSAA2, DSC2 and CCM are stronger than DSAA and DSC and provide
superior protection. DSAA2 and DSC2 are based on AES [10] and were created in 2011. CCM is also based on
AES [10] and was added to the standard in 2012.
The present document includes New Generation DECT, a further development of the DECT standard introducing
wideband speech, improved data services, new slot types and other technical enhancements.
The present document also includes DECT Ultra Low Energy (ULE), a low rate data technology based on DECT
intended for M2M applications with ultra low power consumption.

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SIST EN 300 175-1 V2.9.1:2022(Main)
Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 1: Overview
ETSI EN 300 175-1 V2.9.1 (2022-03)

The present document gives an introduction and overview of the complete Digital Enhanced Cordless
Telecommunications (DECT) Common Interface (CI).
The present document contains an abstract of the other parts of the DECT standard together with a general
description of:
• the objectives of the present document;
• the DECT Common Interface;
• the protocol architecture of DECT.
The present document also provides an extensive vocabulary; in particular it contains the common definitions of all the
technical terms used in different parts of the present document.
The present document includes New Generation DECT, a further development of the DECT standard introducing
wideband speech, improved data services, new slot types and other technical enhancements.
The present document includes DECT Evolution.

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SIST EN 300 175-4 V2.9.1:2022(Main)
Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 4: Data Link Control (DLC) layer
ETSI EN 300 175-4 V2.9.1 (2022-03)

The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications
(DECT) Common Interface (CI).
The present document specifies the Data Link Control (DLC) layer. The DLC layer is part 4 of the DECT CI standard
and layer 2b of the DECT protocol stack.
Two planes of operation are specified for this DLC (sub)layer. These planes are called the Control plane (C-plane) and
the User plane (U-plane).
The C-plane is mostly concerned with the DECT signalling aspects. It provides a reliable point-to-point service that
uses a link access protocol to offer error protected transmission of Network (NWK) layer messages. The C-plane also
provides a separate point-to-multipoint (broadcast) service (Lb).
The U-plane is only concerned with end-to-end user information. This plane contains most of the application dependent
procedures of DECT. Several alternative services (both circuit-mode and packet-mode) are defined as a family of
independent entities. Each service provides one or more point-to-point U-plane data links, where the detailed
characteristics of those links are determined by the particular needs of each service. The defined services cover a wide
range of performance, from "unprotected with low delay" for speech applications to "highly protected with variable
delay", for local area network applications.
NOTE: The performance of the DLC services need not be tight to any particular application. For example the
"unprotected with low delay" service could also be used for data applications, e.g. if some data protection
is provided outside the DECT protocol.
The present document uses the layered model principles and terminology as described in Recommendations ITU-T
X.200 [14] and X.210 [15].
The present document includes New Generation DECT, a further development of the DECT standard introducing
wideband speech, improved data services, new slot types and other technical enhancements.

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