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

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.

Prizemni snopovni radio (TETRA) – Govor in podatki (V+D) – 12. del: Dopolnilne storitve stopnje 3 – 21. poddel: Poslušanje okolice (AL)

General Information

Status
Published
Publication Date
31-Mar-2006
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Apr-2006
Due Date
01-Apr-2006
Completion Date
01-Apr-2006

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SIST EN 300 392-12-21 V1.2.1:2006
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.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)33.070.10Prizemni snopovni radio (TETRA)Terrestrial Trunked Radio (TETRA)ICS:Ta slovenski standard je istoveten z:EN 300 392-12-21 Version 1.2.1SIST EN 300 392-12-21 V1.2.1:2006en01-april-2006SIST EN 300 392-12-21 V1.2.1:2006SLOVENSKI

STANDARD
SIST EN 300 392-12-21 V1.2.1:2006

ETSI EN 300 392-12-21 V1.2.1 (2004-11)European Standard (Telecommunications series) Terrestrial Trunked Radio (TETRA);Voice plus Data (V+D);Part 12: Supplementary services stage 3;Sub-part 21: Ambience Listening (AL)

SIST EN 300 392-12-21 V1.2.1:2006
ETSI ETSI EN 300 392-12-21 V1.2.1 (2004-11) 2

Reference REN/TETRA-03134 Keywords supplementary service, TETRA 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 2004. All rights reserved.

DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. SIST EN 300 392-12-21 V1.2.1:2006

ETSI ETSI EN 300 392-12-21 V1.2.1 (2004-11) 3

Contents Intellectual Property Rights................................................................................................................................5 Foreword.............................................................................................................................................................5 1 Scope........................................................................................................................................................7 2 References................................................................................................................................................7 3 Definitions and abbreviations...................................................................................................................8 3.1 Definitions..........................................................................................................................................................8 3.2 Abbreviations.....................................................................................................................................................8 4 SS-AL service description........................................................................................................................8 4.1 General...............................................................................................................................................................8 4.2 SS-AL services offered over the TNSS-SAP.....................................................................................................9 4.2.1 SS-AL service primitives to served user.......................................................................................................9 4.2.2 SS-AL service primitives to affected user....................................................................................................9 4.2.3 SS-AL service primitive to second listening party.......................................................................................9 4.3 Service primitive descriptions..........................................................................................................................10 4.3.1 INFORMATION indication........................................................................................................................10 4.3.2 INTERROGATE request............................................................................................................................10 4.3.3 INTERROGATE indication........................................................................................................................10 4.3.4 INVOKE1 request......................................................................................................................................11 4.3.5 INVOKE2 request......................................................................................................................................11 4.3.6 INVOKE indication....................................................................................................................................11 4.3.7 INVOKE ACK request...............................................................................................................................11 4.3.8 INVOKE1 indication..................................................................................................................................12 4.3.9 INVOKE2 indication..................................................................................................................................12 4.3.10 INVOKE3 request......................................................................................................................................12 4.3.11 INVOKE3 indication..................................................................................................................................13 4.3.12 STOP LISTENING request........................................................................................................................13 4.4 Parameter description.......................................................................................................................................13 5 Signalling protocol to support SS-AL....................................................................................................15 5.1 General.............................................................................................................................................................15 5.2 SS-AL general operational requirements.........................................................................................................15 5.2.1 Requirements on the affected user MS.......................................................................................................15 5.2.2 Requirements on the affected user current SwMI.......................................................................................15 5.2.3 Requirements on the SS-AL affected user home SwMI.............................................................................15 5.2.4 Requirements on the served user MS/LS....................................................................................................15 5.2.5 Requirements on the served user SwMI.....................................................................................................15 5.2.6 Requirements on the second listening party MS/LS...................................................................................16 5.2.7 Requirements on the SS-AL second listening party SwMI.........................................................................16 5.3 SS-AL coding requirements.............................................................................................................................16 5.3.1 General on SS-AL PDUs............................................................................................................................16 5.3.2 AL-TX DEMAND PDU.............................................................................................................................16 5.3.3 AL-TX GRANTED PDU...........................................................................................................................17 5.3.4 AL-TX INFORM PDU...............................................................................................................................17 5.3.5 AL-TX INTERRUPT PDU........................................................................................................................17 5.3.6 AL-TX REJECT PDU................................................................................................................................18 5.3.7 INFORMATION PDU...............................................................................................................................18 5.3.8 INTERROGATE PDU...............................................................................................................................19 5.3.9 INTERROGATE ACK PDU......................................................................................................................20 5.3.10 INVOKE1 PDU..........................................................................................................................................20 5.3.11 INVOKE2 PDU..........................................................................................................................................21 5.3.12 INVOKE PDU............................................................................................................................................21 5.3.13 INVOKE ACK PDU...................................................................................................................................21 5.3.14 INVOKE1 ACK PDU.................................................................................................................................22 5.3.15 INVOKE2 ACK PDU.................................................................................................................................22 SIST EN 300 392-12-21 V1.2.1:2006

ETSI ETSI EN 300 392-12-21 V1.2.1 (2004-11) 4

5.4 Information element coding.............................................................................................................................23 5.4.1 AL PDU type..............................................................................................................................................23 5.4.2 Affected party extension.............................................................................................................................23 5.4.3 Affected party short number.......................................................................................................................23 5.4.4 Affected party SSI......................................................................................................................................24 5.4.5 Affected party type identifier......................................................................................................................24 5.4.6 Encryption control......................................................................................................................................24 5.4.7 Interrogated party extension.......................................................................................................................24 5.4.8 Interrogated party short number..................................................................................................................24 5.4.9 Interrogated party SSI.................................................................................................................................24 5.4.10 Interrogated party type identifier................................................................................................................24 5.4.11 Listening party extension............................................................................................................................24 5.4.12 Listening party SSI.....................................................................................................................................24 5.4.13 Listening party type identifier.....................................................................................................................25 5.4.14 Range type of interrogated users.................................................................................................................25 5.4.15 Result of interrogation................................................................................................................................25 5.4.16 Result of invocation....................................................................................................................................26 5.4.17 Result of invocation by user.......................................................................................................................26 5.4.18 Second listening party extension................................................................................................................26 5.4.19 Second listening party short number...........................................................................................................27 5.4.20 Second listening party SSI..........................................................................................................................27 5.4.21 Second listening party type identifier.........................................................................................................27 5.4.22 Transmission grant......................................................................................................................................27 5.5 SS-AL state definitions....................................................................................................................................27 5.5.1 Protocol states of served user FE1..............................................................................................................27 5.5.2 Protocol states of SwMI FE2......................................................................................................................27 5.5.3 Protocol states of affected user FE5............................................................................................................27 5.5.4 Protocol states of FE2 in visited SwMI......................................................................................................27 5.5.5 Protocol states of second listening party FE6.............................................................................................27 5.6 SS-AL Procedures............................................................................................................................................27 5.6.1 Procedures for served user FE1..................................................................................................................27 5.6.1.1 Interrogation..........................................................................................................................................27 5.6.1.2 Invocation..............................................................................................................................................28 5.6.1.3 Addition of second listening party........................................................................................................28 5.6.1.4 Invocation during on-going call............................................................................................................28 5.6.2 Procedures for SwMI FE2..........................................................................................................................28 5.6.2.1 Interrogation..........................................................................................................................................28 5.6.2.2 Invocation..............................................................................................................................................28 5.6.2.3 Addition of second listening party........................................................................................................29 5.6.2.4 Invocation during on-going call............................................................................................................29 5.6.3 Procedures for FE2 in visited SwMI...........................................................................................................29 5.6.4 Procedures for affected user FE5................................................................................................................30 5.6.4.1 Invocation..............................................................................................................................................30 5.6.4.2 Invocation during on-going call............................................................................................................30 5.6.4.3 Affected user request for invocation.....................................................................................................30 5.6.5 Procedures for second listening party FE6.................................................................................................30 5.6.5.1 Invocation..............................................................................................................................................30 5.6.5.2 Invocation during on-going call............................................................................................................30 5.7 Interactions with other supplementary services................................................................................................31 5.7.1 General........................................................................................................................................................31 5.7.2 Call Forwarding..........................................................................................................................................31 5.7.3 Ambience Listening....................................................................................................................................31 Annex A (informative): SS-AL Call request........................................................................................32 Annex B (informative): INTERROGATE ACK PDU encoding........................................................33 Annex C (informative): Change requests.............................................................................................34 History..............................................................................................................................................................35

SIST EN 300 392-12-21 V1.2.1:2006
ETSI ETSI EN 300 392-12-21 V1.2.1 (2004-11) 5

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 European Standard (Telecommunications series) has been produced by ETSI Project 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)"; ETS 300 392-12-3: "Talking Party Identification (TPI)"; ETS 300 392-12-4: "Call Forwarding (CF)"; ETS 300 392-12-5: "List Search Call (LSC)"; ETS 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)"; SIST EN 300 392-12-21 V1.2.1:2006

ETSI ETSI EN 300 392-12-21 V1.2.1 (2004-11) 6

ETS 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)"; ETS 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)"; ETS 300 392-12-23: "Call Completion on No Reply (CCNR)"; ETS 300 392-12-24: "Call Retention (CRT)"; TS 100 392-15: "TETRA frequency bands, duplex spacing and channel numbering"; TS 100 392-16: "Network Performance Metrics"; TS 100 392-17: "TETRA V+D and DMO Release 1.1 specifications". NOTE: Part 13 (SDL) and part 14 (PICS) of this multipart deliverable are of status "historical" and will not be updated according this version of the standard.

National transposition dates Date of adoption of this EN: 29 October 2004 Date of latest announcement of this EN (doa): 31 January 2005 Date of latest publication of new National Standard or endorsement of this EN (dop/e):

31 July 2005 Date of withdrawal of any conflicting National Standard (dow): 31 July 2005

SIST EN 300 392-12-21 V1.2.1:2006
ETSI ETSI EN 300 392-12-21 V1.2.1 (2004-11) 7

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 The following documents contain provisions which, through reference in this text, constitute provisions of the present document. • 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. • For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http://docbox.etsi.org/Reference. [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)". [2] ETSI EN 300 392-2: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 2: Air Interface (AI)". [3] ETSI EN 300 392-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 1: General network design". [4] ETSI EN 300 392-9: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 9: General requirements for supplementary services". [5] 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)". [6] 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)". [7] 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)". SIST EN 300 392-12-21 V1.2.1:2006

ETSI ETSI EN 300 392-12-21 V1.2.1 (2004-11) 8

3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: 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. affected user: user to whom the served user is listening served user: user who invokes this supplementary service and listens the affected user second listening party: TETRA individual or group which additionally listens into the AL call 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AL Ambience Listening CC Call Control CFB Call Forwarding on Busy CMCE Circuit Mode Control Entity FE Functional Entity GSSI Group Short Subscriber Identity ISI Inter-System Interface ISSI Individual Short Subscriber Identity ITSI Individual TETRA Subscriber Identity LS Line Station MMI Man-Machine Interface MS Mobile Station PDU Protocol Data Unit SAP Service Access Point SDL (Functional) Specification and Description Language SNA Short Number Address SS Supplementary Service NOTE: The abbreviation SS is only used when referring to a specific supplementary service. SSI Short Subscriber Identity SwMI Switching and Management Infrastructure TNSS-SAP TETRA Network layer Supplementary Service - Service Access Point TSI TETRA Subscriber Identity 4 SS-AL service description 4.1 General The SS-AL enables the served user to place a TETRA Mobile Station (MS) into a special type of voice call teleservice whereby the called MS transmits without any action from, or indication to, the affected user. The affected user shall be an individual user. The SS-AL call may include a second listening party. The second listening party may be either individual user or a group. SIST EN 300 392-12-21 V1.2.1:2006

ETSI ETSI EN 300 392-12-21 V1.2.1 (2004-11) 9

Clauses 4.2 and 4.3 describe SS-AL specific services offered by the Circuit Mode Control Entity (CMCE) at the Supplementary Services service access point (TNSS-SAP) of the TETRA voice plus data layer 3 service boundary. The SS-AL service access point is used in conformance testing as a normative boundary in TETRA Mobile Stations (MSs). NOTE 1: As the present document only deals with the SS-AL all the service primitives has been shown without a TNSS-AL-prefix e.g. the TNSS-AL-INVOKE request is shorten into an INVOKE request. The services offered to users of SS-AL are defined as service primitives containing service parameters. The service primitives are defined in clauses 4.2 and 4.3 and the service parameters are defined in clause 4.4. In addition to the defined service primitives a SwMI may respond by a service not supported or a process not supported primitives as appropriate, refer EN 300 392-9 [4]. NOTE 2: As the present document does not describe a man-machine interface nor user applications the service primitives are used to define information exchange to and from the standardized part of the MS/LS. Those primitives may not be accessible directly nor indirectly. Examples of information flows are presented in EN 300 392-11-21 [1]. 4.2 SS-AL services offered over the TNSS-SAP 4.2.1 SS-AL service primitives to served user The SS-AL service primitives at the served user MS/LS (FE1) TNSS-SAP are: a) INTERROGATE request; b) INTERROGATE indication; c) INVOKE1 request; d) INVOKE1 indication;

e) INVOKE2 request; f) INVOKE2 indication; g) INVOKE3 request;

h) INVOKE3 indication; and i) STOP LISTENING request. 4.2.2 SS-AL service primitives to affected user The SS-AL service primitives at the affected user MS/LS (FE5) TNSS-SAP are: a) INVOKE indication; and b) INVOKE ACK request. 4.2.3 SS-AL service primitive to second listening party The SS-AL service primitive at the second listening party MS/LS (FE6) TNSS-SAP is: a) INFORMATION indication. NOTE: In the present document primitives request and indication are used instead of request and confirmation as there may not be a one to one correspondence between those primitives, e.g. there can be multiple responses as indications due to a single request. SIST EN 300 392-12-21 V1.2.1:2006

ETSI ETSI EN 300 392-12-21 V1.2.1 (2004-11) 10 The information conta
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