ETSI TS 102 349 V4.1.2 (2015-08)

Digital Radio Mondiale (DRM); Receiver Status and Control Interface (RSCI)

RTS/JTC-DRM-31

General Information

• Status: Published
• Publication Date: 17-Aug-2015
• Technical Committee: BROADCAS - EBU/CENELEC/ETSI on Broadcasting
• Current Stage: 12 - Completion
• Due Date: 29-Jul-2015
• Completion Date: 18-Aug-2015

Standards Content (Sample)

ETSI TS 102 349 V4.1.2 (2015-08)






TECHNICAL SPECIFICATION
Digital Radio Mondiale (DRM);
Receiver Status and Control Interface (RSCI)

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2 ETSI TS 102 349 V4.1.2 (2015-08)



Reference
RTS/JTC-DRM-31
Keywords
broadcasting, control, digital, DRM, interface,
remote
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3 ETSI TS 102 349 V4.1.2 (2015-08)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 6
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definitions, symbols, abbreviations and convention . 9
3.1 Definitions . 9
3.2 Symbols . 11
3.3 Abbreviations . 11
3.4 Convention . 13
4 System conception for DRM coverage monitoring . 13
5 Protocols, profiles and rules . 15
5.1 Protocols . 15
5.2 Profiles . 15
5.2.0 General . 15
5.2.1 Standard Profiles . 15
5.2.2 User-defined profiles . 17
5.3 Timing . 17
5.3.0 General . 17
5.3.1 Short interleaving (robustness modes A to D) . 18
5.3.2 Long interleaving (robustness modes A to D) . 18
5.3.3 Fixed interleaving (robustness mode E) . 20
5.4 RSCI to MDI conversion . 20
5.5 Sub-sampling of RSCI . 20
5.5.0 General . 20
5.5.1 Frame-level sub-sampling . 20
5.5.2 Per-TAG-item subsampling . 21
6 TAG items . 21
6.0 General . 21
6.1 Format of TAG items . 21
6.2 Conventions for TAG names . 22
6.3 General rules for the TAG layer . 22
6.4 TAG items for RX_STAT . 22
6.4.0 General . 22
6.4.1 TAG items for protocol specification . 23
6.4.1.0 General . 23
6.4.1.1 Protocol type and revision (*ptr) . 23
6.4.1.2 DRM logical frame count (dlfc) . 24
6.4.1.3 Type of RX_STAT profile (rpro) . 24
6.4.1.4 Fractional Modified Julian Date (fmjd). 24
6.4.1.5 Time and date in ASCII notation (time) . 25
6.4.1.6 GPS information (rgps) . 26
6.4.1.7 Allowed commands (ralc) . 28
6.4.2 TAG items specifying the transmission . 29
6.4.2.0 General . 29
6.4.2.1 Receiver demodulation type (rdmo) . 29
6.4.2.2 Reception frequency (rfre) . 29
6.4.2.3 Received signal strength (rdbv). 30
6.4.2.4 Receiver signal to noise ratio (rsnr) . 30
6.4.3 TAG items specifying receiver settings . 31
ETSI

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4 ETSI TS 102 349 V4.1.2 (2015-08)
6.4.3.0 General . 31
6.4.3.1 Receiver type (rinf) . 31
6.4.3.2 Receiver activated (ract) . 31
6.4.3.3 Status of receiver (rsta) . 32
6.4.3.4 IF filter bandwidth (rbw_) . 32
6.4.3.5 Selected service (rser) . 33
6.4.3.6 Received test type (rtty) . 33
6.4.3.7 Audio status (rafs) . 34
6.4.3.8 Extended Audio Status (reas) . 35
6.4.4 TAG items specifying DRM multiplex . 36
6.4.4.0 General . 36
6.4.4.1 Robustness mode (robm) . 36
6.4.4.2 Fast Access Channel (fac_) . 37
6.4.4.3 Service Description Channel (sdc_) . 37
6.4.4.4 Service Description Channel information (sdci) . 38
6.4.4.5 MSC stream data (str0, str1, str2 and str3) . 38
6.4.4.6 Gain reference pilots (rpil) . 39
6.4.5 TAG items for results of measurements . 41
6.4.5.0 General . 41
6.4.5.1 Weighted Modulation Error Ratio for FAC cells (rwmf) . 41
6.4.5.2 Weighted Modulation Error Ratio for MSC cells (rwmm) . 42
6.4.5.3 Modulation Error Ratio for actual frame (rmer). 42
6.4.5.4 Bit error rate of MSC stream (rbp0, rbp1, rbp2 and rbp3) . 43
6.4.5.5 Delay window (rdel) . 43
6.4.5.6 Doppler estimation (rdop) . 45
6.4.5.7 Power Spectral Density (rpsd). 46
6.4.5.8 Narrow Band Interferer (rnic) constellation based . 47
6.4.5.9 Narrow Band Interferer (rnip) power spectral density based . 49
6.4.5.10 Power Impulse Response (rpir) . 50
6.4.6 TAG items for analogue reception . 51
6.4.6.1 Encoded analogue-mode audio (rama) . 51
6.4.7 TAG items specifying longer-term statistics . 51
6.4.7.0 General . 51
6.4.7.1 Statistics derived from other TAG items . 52
6.4.7.1.1 General format of derived statistics TAG items . 52
6.4.7.1.2 TAG items based on dB values (xdbv, xwmf, xwmm, xmer) . 52
6.4.7.1.3 Delay statistics (xdel) . 52
6.4.7.1.4 Doppler statistics (xdop) . 52
6.4.7.1.5 Power Spectral Density and Power Impulse Response statistics (xpsd, xpir) . 53
6.4.7.1.6 Narrowband interference statistics (xnip, xnic) . 53
6.4.7.2 Statistics not derived from other TAG items . 53
6.4.7.2.1 Receiver status statistics (rsst) . 53
6.4.7.2.2 Audio quality statistics (rast) . 53
6.5 TAG items for RX_CTRL . 54
6.5.0 General . 54
6.5.1 TAG items for receiver settings . 54
6.5.1.0 General . 54
6.5.1.1 Activate receiver (cact) . 54
6.5.1.2 Set reception frequency (cfre) . 55
6.5.1.3 Set receiver demodulation type (cdmo) . 55
6.5.1.4 Set IF filter bandwidth (cbws and cbwg) . 55
6.5.1.5 Select service (cser). 56
6.5.2 TAG items for signal recording . 56
6.5.2.0 General . 56
6.5.2.1 Start/stop recording (crec) . 56
6.5.3 TAG items for RSCI output control . 57
6.5.3.0 General . 57
6.5.3.1 Selection of RX_STAT profile (cpro) . 58
6.6 Revision history . 58
ETSI

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5 ETSI TS 102 349 V4.1.2 (2015-08)
7 Test and measurement . 59
History . 61

ETSI

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6 ETSI TS 102 349 V4.1.2 (2015-08)
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://ipr.etsi.org).
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 Specification (TS) has been produced by Joint Technical Committee (JTC) Broadcast of the European
Broadcasting Union (EBU), Comité Européen de Normalisation ELECtrotechnique (CENELEC) and the European
Telecommunications Standards Institute (ETSI).
NOTE: The EBU/ETSI JTC Broadcast was established in 1990 to co-ordinate the drafting of standards in the
specific field of broadcasting and related fields. Since 1995 the JTC Broadcast became a tripartite body
by including in the Memorandum of Understanding also CENELEC, which is responsible for the
standardization of radio and television receivers. The EBU is a professional association of broadcasting
organizations whose work includes the co-ordination of its members' activities in the technical, legal,
programme-making and programme-exchange domains. The EBU has active members in about
60 countries in the European broadcasting area; its headquarters is in Geneva.
European Broadcasting Union
CH-1218 GRAND SACONNEX (Geneva)
Switzerland
Tel: [phone]
Fax: [phone]

Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Introduction
In order to meet the need for a digital transmission system suitable for use in all of the bands below 30 MHz, the Digital
Radio Mondiale (DRM) consortium was formed in early 1998. The DRM consortium is a non-profit making body that
seeks to develop and promote the use of the DRM system worldwide. Its members include broadcasters, network
providers, receiver and transmitter manufacturers and research institutes. More information is available from their
website (http://www.drm.org/).
A large number of communication protocols have been developed to allow reliable exchange of data using a wide
variety of different techniques. Some have relied on two-way communication to allow requests for re-tries of missing or
corrupted messages, while others have relied on Forward Error Correcting (FEC) codes such as Reed Solomon to
rebuild the original message. Unfortunately most of the protocols are tightly coupled to the application they were
originally developed for, do not scale well in multicast networks or are unsuitable for use over the uni-directional
circuits often found in distribution systems. When the development of a distribution protocol for Digital Radio
Mondiale broadcasts was considered, none of the available protocols was deemed suitable and so it was decided to
develop a general purpose, low-level, reliable communications protocol suitable for both uni-directional and
bi-directional data links which would meet the needs of DRM but would also hopefully be flexible enough to meet the
needs of other applications as well.
ETSI

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7 ETSI TS 102 349 V4.1.2 (2015-08)
The Distribution and Communication Protocol (DCP) describes a common way to transport information over a variety
of basic transport protocols like IP, serial line or file. It provides transport information, addressing information,
fragmentation to handle limited basic transport protocols and forward error correction to deal with packet losses or
packet corruption. The DCP protocol is application-independent and free to use for every organization and purpose. It is
specified in ETSI TS 102 821 [2]. The actual content to be transported in DRM-specific protocols based on DCP
(tailored to individual purposes) is defined in additional documents like the present one.
ETSI

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8 ETSI TS 102 349 V4.1.2 (2015-08)
1 Scope
The present document defines the actual content to be transported in the DRM-specific protocol Receiver Status and
Control Interface (RSCI) based on the generic and application-independent Distribution and Communications
Protocol (DCP) [2]. The RSCI protocol covers the transport of receiver's status information (output protocol) in
addition to the DRM multiplex as well as commands (control protocol) to control the receiver's behaviour. The
available TAG items for the RSCI TAG layer within the DCP protocol are defined in the present document.
The present document has been revised to provide full support for the xHE-AAC audio codec.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
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.
The following referenced documents are necessary for the application of the present document.
[1] ETSI ES 201 980: "Digital Radio Mondiale (DRM); System Specification".
[2] ETSI TS 102 821: "Digital Radio Mondiale (DRM); Distribution and Communications Protocol
(DCP)".
[3] ETSI TS 102 820: "Digital Radio Mondiale (DRM); Multiplex Distribution Interface (MDI)".
[4] ETSI TS 101 968: "Digital Radio Mondiale (DRM); Data applications directory".
[5] ETSI TS 102 358: "Digital Radio Mondiale (DRM); Specific Restrictions for the use of the
Distribution and Communication Protocol (DCP)".
[6] Recommendation ITU-R P.1407: "Multipath propagation and parameterization of its
characteristics".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI TR 101 290: "Digital Video Broadcasting (DVB); Measurement guidelines for DVB
systems".
ETSI

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9 ETSI TS 102 349 V4.1.2 (2015-08)
3 Definitions, symbols, abbreviations and convention
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Alternative Frequency Switching (AFS): feature of the DRM multiplex, which allows receivers to automatically
re-tune to a frequency offering more reliable reception without a break in the decoded audio
Application Framing (AF): layer of the DCP providing a logical grouping of a number of TAG items
byte: collection of 8 bits
cell: sine wave portion of duration T , transmitted with a given amplitude and phase and corresponding to a carrier
s
position
NOTE: Each OFDM symbol is the sum of K such sine wave portions equally spaced in frequency.
Coordinated Universal Time (literally Universel Temps Coordonné) (UTC): time format counting in standard
SI seconds with periodic adjustments made by the addition (or removal) of leap seconds to keep the difference between
UTC and Astronomical Time less than ±0,9 s
st
NOTE: TAI and UTC were defined as having an initial offset of 10 seconds on January 1 1972 (TAI prior to this
date had a variable fractional offset to UTC as the two times did not use the same definition of the
th
second). As at February 25 2003 there have been 22 leap seconds, all positive, making TAI = UTC + 32.
Distribution and Communication Protocol (DCP): transport layer communications protocol providing fragmentation,
addressing and/or reliable data transmission over error inserting channels using a Reed Solomon (RS) code to provide
Forward Error Correction (FEC) as defined in ETSI TS 102 821 [2]
Fast Access Channel (FAC): channel of the multiplex data stream, which contains the information that is necessary to
find services and begin to decode the multiplex
Global Position S
...