ETSI EN 300 392-12-21 V1.5.1 (2012-04)

SLOVENSKI STANDARD
SIST EN 300 392-12-21:2012
01-maj-2012
Prizemni snopovni radio (TETRA) - Govor in podatki (V+D) - 12. del: Dopolnilne
storitve stopnje 3 - 21. poddel: Poslušanje okolice (AL)
Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary
services stage 3 - Sub-part 21: Ambience Listening (AL)
Ta slovenski standard je istoveten z: EN 300 392-12-21
ICS:
33.070.10 Prizemni snopovni radio Terrestrial Trunked Radio
(TETRA) (TETRA)
SIST EN 300 392-12-21:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 392-12-21:2012

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SIST EN 300 392-12-21:2012
ETSI EN 300 392-12-21 V1.5.1 (2012-04)






European Standard
Terrestrial Trunked Radio (TETRA);
Voice plus Data (V+D);
Part 12: Supplementary services stage 3;
Sub-part 21: Ambience Listening (AL)

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SIST EN 300 392-12-21:2012
 2 ETSI EN 300 392-12-21 V1.5.1 (2012-04)



Reference
REN/TETRA-03216
Keywords
supplementary service, TETRA
ETSI
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SIST EN 300 392-12-21:2012
 3 ETSI EN 300 392-12-21 V1.5.1 (2012-04)
Contents
Intellectual Property Rights . 5
Foreword . 5
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 8
4 SS-AL service description . 9
4.1 General . 9
4.2 SS-AL services offered over the TNSS-SAP . 10
4.2.1 SS-AL service primitives to served user . 10
4.2.2 SS-AL service primitives to affected user . 10
4.2.3 SS-AL service primitive to second listening party . 10
4.3 Service primitive descriptions . 11
4.3.1 INFORMATION indication. 11
4.3.2 INTERROGATE request . 11
4.3.3 INTERROGATE indication. 11
4.3.4 INVOKE1 request . 11
4.3.5 INVOKE2 request . 12
4.3.6 INVOKE indication . 12
4.3.7 INVOKE ACK request . 12
4.3.8 INVOKE1 indication . 12
4.3.9 INVOKE2 indication . 13
4.3.10 INVOKE3 request . 13
4.3.11 INVOKE3 indication . 13
4.3.12 STOP LISTENING request . 14
4.4 Parameter description . 14
5 Signalling protocol to support SS-AL . 15
5.1 General . 15
5.2 SS-AL general operational requirements . 16
5.2.1 Requirements on the affected user MS . 16
5.2.2 Requirements on the affected user current SwMI . 16
5.2.3 Requirements on the SS-AL affected user home SwMI . 16
5.2.4 Requirements on the served user MS . 16
5.2.5 Requirements on the served user SwMI . 16
5.2.6 Requirements on the second listening party MS . 16
5.2.7 Requirements on the SS-AL second listening party SwMI . 16
5.3 SS-AL coding requirements . 17
5.3.1 General on SS-AL PDUs . 17
5.3.2 AL-TX DEMAND PDU . 17
5.3.3 AL-TX GRANTED PDU . 18
5.3.4 AL-TX INFORM PDU . 18
5.3.5 AL-TX INTERRUPT PDU . 18
5.3.6 AL-TX REJECT PDU . 19
5.3.7 INFORMATION PDU . 19
5.3.8 INTERROGATE PDU . 20
5.3.9 INTERROGATE ACK PDU . 21
5.3.10 INVOKE1 PDU . 21
5.3.11 INVOKE2 PDU . 22
5.3.12 INVOKE PDU . 22
5.3.13 INVOKE ACK PDU . 22
5.3.14 INVOKE1 ACK PDU . 23
5.3.15 INVOKE2 ACK PDU . 23
5.4 Information element coding . 24
ETSI

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SIST EN 300 392-12-21:2012
 4 ETSI EN 300 392-12-21 V1.5.1 (2012-04)
5.4.1 AL PDU type . 24
5.4.2 Affected party extension . 24
5.4.3 Affected party short number . 24
5.4.4 Affected party SSI . 25
5.4.5 Affected party type identifier . 25
5.4.6 Encryption control . 25
5.4.7 Interrogated party extension . 25
5.4.8 Interrogated party short number . 25
5.4.9 Interrogated party SSI . 25
5.4.10 Interrogated party type identifier . 25
5.4.11 Listening party extension . 25
5.4.12 Listening party SSI . 25
5.4.13 Listening party type identifier . 26
5.4.14 Range type of interrogated users . 26
5.4.15 Result of interrogation . 26
5.4.16 Result of invocation . 27
5.4.17 Result of invocation by user . 27
5.4.18 Second listening party extension . 27
5.4.19 Second listening party short number . 28
5.4.20 Second listening party SSI . 28
5.4.21 Second listening party type identifier . 28
5.4.22 Transmission grant . 28
5.4.23 TX demand priority . 28
5.5 SS-AL state definitions . 28
5.5.1 Protocol states of served user FE1 . 28
5.5.2 Protocol states of SwMI FE2 . 28
5.5.3 Protocol states of affected user FE5 . 28
5.5.4 Protocol states of FE2 in visited SwMI . 28
5.5.5 Protocol states of second listening party FE6 . 28
5.6 SS-AL Procedures . 28
5.6.1 Procedures for served user FE1 . 28
5.6.1.1 Interrogation . 28
5.6.1.2 Invocation. 29
5.6.1.3 Addition of second listening party . 29
5.6.1.4 Invocation during on-going call . 29
5.6.2 Procedures for SwMI FE2 . 29
5.6.2.1 Interrogation . 29
5.6.2.2 Invocation. 29
5.6.2.3 Addition of second listening party . 30
5.6.2.4 Invocation during on-going call . 30
5.6.3 Procedures for FE2 in visited SwMI . 30
5.6.4 Procedures for affected user FE5 . 31
5.6.4.1 Invocation. 31
5.6.4.2 Invocation during on-going call . 31
5.6.4.3 Affected user request for invocation . 31
5.6.5 Procedures for second listening party FE6 . 31
5.6.5.1 Invocation. 31
5.6.5.2 Invocation during on-going call . 32
5.7 Interactions with other supplementary services . 32
5.7.1 General . 32
5.7.2 Call Forwarding . 32
5.7.3 Ambience Listening . 32
Annex A (informative): SS-AL Call request . 33
Annex B (informative): INTERROGATE ACK PDU encoding . 34
Annex C (informative): INVOKE1 and INVOKE1 ACK PDUs encoding . 35
Annex D (informative): Change requests . 36
History . 37

ETSI

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SIST EN 300 392-12-21:2012
 5 ETSI EN 300 392-12-21 V1.5.1 (2012-04)
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 European Standard (EN) has been produced by ETSI Technical Committee Terrestrial Trunked Radio (TETRA).
The present document is part 12, sub-part 21 of a multi-part deliverable covering Voice plus Data (V+D),
as identified below:
EN 300 392-1: "General network design";
EN 300 392-2: "Air Interface (AI)";
EN 300 392-3: "Interworking at the Inter-System Interface (ISI)";
ETS 300 392-4: "Gateways basic operation";
EN 300 392-5: "Peripheral Equipment Interface (PEI)";
EN 300 392-7: "Security";
EN 300 392-9: "General requirements for supplementary services";
EN 300 392-10: "Supplementary services stage 1";
EN 300 392-11: "Supplementary services stage 2";
EN 300 392-12: "Supplementary services stage 3":
EN 300 392-12-1: "Call Identification (CI)";
ETS 300 392-12-2: "Call Report (CR)";
EN 300 392-12-3: "Talking Party Identification (TPI)";
EN 300 392-12-4: "Call Forwarding (CF)";
ETS 300 392-12-5: "List Search Call (LSC)";
EN 300 392-12-6: "Call Authorized by Dispatcher (CAD)";
ETS 300 392-12-7: "Short Number Addressing (SNA)";
EN 300 392-12-8: "Area Selection (AS)";
ETS 300 392-12-9: "Access Priority (AP)";
EN 300 392-12-10: "Priority Call (PC)";
ETS 300 392-12-11: "Call Waiting (CW)";
EN 300 392-12-12: "Call Hold (HOLD)";
ETSI

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SIST EN 300 392-12-21:2012
 6 ETSI EN 300 392-12-21 V1.5.1 (2012-04)
EN 300 392-12-13: "Call Completion to Busy Subscriber (CCBS)";
EN 300 392-12-14: "Late Entry (LE)";
EN 300 392-12-16: "Pre-emptive Priority Call (PPC)";
EN 300 392-12-17: "Include Call (IC)";
EN 300 392-12-18: "Barring of Outgoing Calls (BOC)";
EN 300 392-12-19: "Barring of Incoming Calls (BIC)";
EN 300 392-12-20: "Discreet Listening (DL)";
EN 300 392-12-21: "Ambience Listening (AL)";
EN 300 392-12-22: "Dynamic Group Number Assignment (DGNA)";
EN 300 392-12-23: "Call Completion on No Reply (CCNR)";
ETS 300 392-12-24: "Call Retention (CRT)";
ETS 300 392-13: "SDL model of the Air Interface (AI)";
ETS 300 392-14: "Protocol Implementation Conformance Statement (PICS) proforma specification";
TS 100 392-15: "TETRA frequency bands, duplex spacing's and channel numbering";
TS 100 392-16: "Network Performance Metrics";
TR 100 392-17: "TETRA V+D and DMO specifications";
TS 100 392-18: "Air interface optimized applications".
NOTE: Part 3, sub-parts 6 and 7 (Speech format implementation), part 4, sub-part 3 (Data networks gateway),
part 10, sub-part 15 (Transfer of control), part 13 (SDL) and part 14 (PICS) of this multi-part deliverable
are in status "historical" and are not maintained.

National transposition dates
Date of adoption of this EN: 20 March 2012
Date of latest announcement of this EN (doa): 30 June 2012
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2012
Date of withdrawal of any conflicting National Standard (dow): 31 December 2012

ETSI

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SIST EN 300 392-12-21:2012
 7 ETSI EN 300 392-12-21 V1.5.1 (2012-04)
1 Scope
The present document defines the stage 3 specification of the Supplementary Service Ambience Listening (SS-AL) for
the Terrestrial Trunked Radio (TETRA). Stage 3 defines the signalling system protocols and switching functions
needed to implement the service described in stage 1 and stage 2.
Charging principles and Man-Machine Interface (MMI) are outside the scope of the present document.
The SS-AL enables the served user to place a TETRA Mobile Station (MS) into a special type of voice call whereby the
called MS transmits without any action from, or indication to, the affected user. The SS-AL call can include a second
listening party. The affected user can ask other user to set an SS-AL call on him.
2 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
reference 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.
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
[1] ETSI EN 300 392-2: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 2: Air
Interface (AI)".
[2] ETSI EN 300 392-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 1:
General network design".
[3] ETSI EN 300 392-9: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 9:
General requirements for supplementary services".
[4] ETSI EN 300 392-3-2: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3:
Interworking at the Inter-System Interface (ISI); Sub-part 2: Additional Network Feature
Individual Call (ANF-ISIIC)".
[5] ETSI EN 300 392-3-3: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3:
Interworking at the Inter-System Interface (ISI); Sub-part 3: Additional Network Feature Group
Call (ANF-ISIGC)".
[6] ETSI EN 300 392-10-21: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 10:
Supplementary services stage 1; Sub-part 21: Ambience Listening (AL)".
2.2 Informative references
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 EN 300 392-11-21: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 11:
Supplementary services stage 2; Sub-part 21: Ambience Listening (AL)".
ETSI

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SIST EN 300 392-12-21:2012
 8 ETSI EN 300 392-12-21 V1.5.1 (2012-04)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
affected user: user to whom the served user is listening
Ambience Listening (AL) call: call in which ambience listening functionality is requested
NOTE: During an AL call, the affected user's MS transmits without any action from, or indication to, the affected
user.
second listening party: TETRA individual or group which additionally listens into the AL call
served user: user who invokes this supplementary service and listens to the affected user
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ACK ACKnowledgement
AI Air Interface
ANF Additional Network Feature
CC Call Control
CMCE Circuit Mode Control Entity
DMO Direct Mode Operation
EPT ETSI Project TETRA (now Technical Body TETRA)
FE Functional Entity
GSSI Group Short Subscriber Identity
ISI Inter-System Interface
ISSI Individual Short Subscriber Identity
ITSI Individual TETRA Subscriber Identity
MMI Man-Machine Interface
MNI Mobile Network Identity
MS Mobile Station
OAP One-step Approval Procedure
PDU Protocol Data Unit
PEI Peripheral Equipment Interface
PICS Protocol Implementation Conformance Statement
SAP Service Access Point
SDL (Functional) Specification and Description Language
SNA Short Number Address
SS Supplementary Service
NOTE 1: The abbreviation SS is only used when referring to a specific supplementary service.
SSI Short Subscriber Identity
SS-PDU Supplementary Service - Protocol Data Unit
SwMI Switching and Management Infrastructure
TETRA Terrestrial Trunked Radio
TNSS-SAP TETRA Network layer Supplementary Service - Service Access Point
TSI TETRA Subscriber Identity
TX Transmitter
V+D Voice Plus Data
ETSI

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SIST EN 300 392-12-21:2012
 9 ETSI EN 300 392-12-21 V1.5.1 (2012-04)
Supplementary service abbreviations
For the purposes of the present document, the following abbreviations also apply:
...