WorldDAB Receiver Profiles

 

WorldDAB Digital Radio Receiver Profiles - Issue Date: 16 March 2016 
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Summary

The WorldDAB Digital Radio Receiver Profiles are designed to help create a vibrant digital radio market across Europe and the world by defining minimum functionality for different classes of digital radio receivers that use the DAB system. This provides broadcasters with confidence that the services they plan will be receivable, and manufacturers that their technology investments will be supported by services. The consumer gains from knowing that the product they have chosen contains the necessary features to provide them with a consistent quality of experience and assured levels of interoperability across Europe and beyond.


Products designed to meet the WorldDAB Receiver Profiles will decode all audio services, along with other features depending on the complexity of the receiver. The profiles were developed by WorldDAB, in collaboration with the EBU and EICTA (now Digitaleurope), with the aid of member experts representing silicon manufacturers, consumer device manufacturers, radio broadcasters and other experts from across the industry. The composition of the profiles takes into account manufacturing issues, broadcaster requirements, consumer experience and other market aspects.


Broadcasters and regulators may select any of the audio and multimedia capabilities of the DAB family of standards to meet the specific needs of their market with confidence, whilst those already broadcasting are able to plan the introduction of more advanced features.

 

Scope

The WorldDAB Digital Radio Receiver Profiles define the minimum functionality requirements of products within each profile. Manufacturers may offer additional features in order to differentiate their product from others.


The Receiver Profiles are composed of mandatory features which must be implemented and recommended features which offer enhancements with wide appeal.


Manufacturers making products to receive DAB based services are encouraged to self-declare adherence of a product to one of the Receiver Profiles. Broadcasters may use the Receiver Profiles to plan services for maximum take-up and to help listeners to make sensible purchasing decisions.


Regulators may use the Receiver Profiles to develop strategies and policies for digital radio broadcasting within national boundaries or with reference to trans-national and harmonised markets.


The Receiver Profiles describe minimum functionality; the implementation of each feature in conformance with the relevant ETSI standards is best determined by each manufacturer and is not proscribed.


In-car products are subject to the normal safety related conditions, for example limitations for scrolling, access to services while driving, image per second limitations, etc, according to regulators or OEM requests.


Products which do not meet the requirements of any profile may continue to be manufactured for established digital radio markets on a market-specific basis.


The WorldDAB Receiver Profiles reflect receiver design issues and broadcaster capabilities appropriate for the current period and for the foreseeable future. Future changes and additions to the ETSI standards defining the DAB family of standards, technology advances and market developments will be reviewed and may lead to revision of these Receiver Profiles.


WorldDAB will publicise the Receiver Profiles and actively encourage its members to adopt them

 

Receiver Profile 1 - Standard Radio Receiver 

This is an audio receiver with at least a basic alphanumeric display.

 

Spectrum1                                                                   Band 3 reception (174 to 240 MHz) is mandatory in all territories
Channel decoding

Decoding of a minimum of one sub-channel is mandatory. Decoding of a minimum of 280 Capacity Units (e.g. 256 kbps@UEP1) is mandatory for sub-channels containing DAB audio services2. Decoding of a minimum of 144 Capacity Units (e.g. 256 kbps@EEP3B, 192 kbps@EEP3A, 96kbps@EEP1A) is mandatory for sub-channels containing DAB+3 services.

Audio

MPEG layer 24 decoding is mandatory. MPEG-4 HE AACv25 decoding is mandatory.

Text

Service label and service component label (station name) display is mandatory. Dynamic label display is mandatory on products with a 2-line display or better (except for in-car products). Support for the extended RDS character set6 is recommended on products with a suitable display.

SPI

Service and Programme Information7 presentation is recommended for products with a suitable display. When implemented it may be used to select services.

Analogue services

FM-RDS8 and MW (AM) decoding is recommended for all products.

Traffic & Travel

For in-car products, TPEG9 decoding is recommended. For in-car products, announcement signalling and switching is recommended.

Service Following10 

For in-car products which include FM-RDS decoding, service following between DAB and DAB+ services and their signalled simulcasts carried on FM-RDS is mandatory. For in-car products, service following between DAB and DAB+ services and their signalled simulcasts carried in adjacent DAB ensembles is recommended.

 


 

Receiver Profile 2 - Rich Media Radio Receiver

This is an audio receiver with a colour screen display of at least 320 x 240 pixels.

All Receiver Profile 1 functionality, plus:

Channel decoding    

Simultaneous decoding of a minimum of four sub-channels is mandatory.
Decoding of a minimum of 288 Capacity Units (total) is mandatory.

Text 

DL+11 presentation is mandatory.
Journaline12 presentation is recommended.
Support for the extended RDS character set13 is mandatory.

SPI

Service and Programme Information14 presentation is mandatory. Decoding of the
advanced profile is recommended. The SPI can be used to select and record
services.

SlideShow 

SlideShow15 presentation is mandatory. 

Traffic & Travel 

For in-car products, TPEG16 and TMC17 decoding is mandatory for products with
integrated navigation systems.

Service Following

For personal products18, service following between DAB, DAB+ and DMB services and their signalled simulcasts carried in adjacent DAB ensembles and on FM-RDS is recommended.

  

Receiver Profile 3 - Multimedia Receiver

This is a multipurpose receiver with a colour screen display capable of rendering video.


All Receiver Profile 2 functionality, plus:

Channel decoding    Decoding of a minimum of 432 Capacity Units (total) is mandatory. 
Video

 H.264 decoding is mandatory18

 

  1. Note that centre frequencies used in Europe are not used throughout the world; receivers designed for global use will need to tune to other centre frequencies
  2. As defined in ISO EN 62104
  3. As defined in ETSI TS 102 563
  4. As defined in ETSI EN 300 401
  5. As defined in ETSI TS 102 563
  6. As defined in ISO EN 62106:2009 (characters may be coded using UTF-8 and UCS-2)
  7. As defined in ETSI TS 102 818 and TS 102 371; decoded from X-PAD (see EN 300 401 clause 7.4 (v1.4.1 onwards)) and packet mode including FEC (see EN 300 401 clause 5.3.5 (v1.4.1 onwards))
  8. As defined in ISO EN 62106:2009
  9. As defined in ISO TS 18234
  10. As defined in ETSI TS 103 176
  11. As defined in ETSI TS 102 980
  12. As defined in ETSI TS 102 979
  13. As defined in ISO EN 62106:2009 (characters may be coded using UTF-8 and UCS-2)
  14. As defined in ETSI TS 102 818 and TS 102 371; decoded from X-PAD (see EN 300 401 clause 7.4 (v1.4.1 onwards)) and packet mode including FEC (see EN 300 401 clause 5.3.5 (v1.4.1 onwards))
  15. As defined in ETSI TS 101 499; decoded from X-PAD (see EN 300 401 clause 7.4 (v1.4.1 onwards)) and packet mode including FEC (see EN 300 401 clause 5.3.5 (v1.4.1 onwards))
  16. As defined in ISO TS 18234
  17. For example mobile or handheld products
  18. As defined in ETSI TS 102 428
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