ETSI TS 100 392-3-10 V1.1.1 (2018-05)

ETSI TS 100 392-3-10 V1.1.1 (2018-05)






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Terrestrial Trunked Radio (TETRA);
Voice plus Data (V+D);
Part 3: Interworking at the Inter-System Interface (ISI);
Sub-part 10: General design, PSS1 over E.1

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2 ETSI TS 100 392-3-10 V1.1.1 (2018-05)



Reference
DTS/TCCE-03238
Keywords
management, mobility, TETRA
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3 ETSI TS 100 392-3-10 V1.1.1 (2018-05)
Contents
Intellectual Property Rights . 5�
Foreword . 5�
Modal verbs terminology . 6�
1 Scope . 7�
2 References . 7�
2.1 Normative references . 7�
2.2 Informative references . 8�
3 Definitions and abbreviations . 8�
3.1 Definitions . 8�
3.2 Abbreviations .10�
4 Usage of Private Signalling System 1 (PSS1) for TETRA . 11�
4.1 PSS1 Functionality .11�
4.2 Protocol stack for signalling information .11�
4.3 Generic Functional Protocol (GFP) .11�
4.4 Protocol stack for user information .12�
4.5 User information encoding at the ISI .12�
5 ISI Generic Functional Protocol (ISI GFP) . 13�
5.1 Protocol model.13�
5.2 Services provided by the protocol model entities .13�
5.3 Addressing and Message Content .15�
5.3.1 PSS1 Message Content .15�
5.3.1.1 PISN Addressing .15�
5.3.1.2 Basic PSS1 Parameter Content .15�
5.3.1.3 Facility Information Element Parameter Content .17�
5.3.2 Transport of ISI APDUs .17�
5.3.2.1 General .17�
5.3.2.2 PSS1 Messages Used for Call related Services .18�
5.3.2.3 PSS1 Messages Used for Call Independent Services .18�
5.4 Procedures .19�
5.4.1 General .19�
5.4.2 Connection Initiation .19�
5.4.2.1 Call Independent Signalling .19�
5.4.2.2 Call Related Signalling .20�
5.4.3 Transport of ISI APDUs in PSS1 FACILITY .21�
5.4.4 Transport of ISI Group Call Signalling .21�
5.4.4.1 SwMI Roles for Group Call .21�
5.4.4.1.1 Definition of SwMI Roles for Group Call .21�
5.4.4.1.2 Requirements on the originating SwMI .21�
5.4.4.1.3 Requirements on the group home SwMI .22�
5.4.4.1.4 Requirements on the controlling SwMI .22�
5.4.4.1.5 Requirements on the participating SwMI .22�
5.4.4.2 Binding Rules .23�
5.4.4.3 Sequences .24�
5.4.5 Transport of ISI Individual Call Signalling.26�
5.4.5.1 SwMI Roles for Individual Call .26�
5.4.5.2 Requirements on the originating SwMI .26�
5.4.5.3 Requirements on the destination SwMI .26�
5.4.5.4 Call Restoration .27�
5.4.5.5 Binding Rules .27�
5.4.5.6 Sequences .28�
5.4.6 Error Handling .29�
5.4.7 Call Release .33�
5.4.7.1 Release of a Call Independent Connection .33�
5.4.7.2 Release of a Call Related Connection .33�
ETSI

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4 ETSI TS 100 392-3-10 V1.1.1 (2018-05)
5.5 ISI GFP requirements and operation definition .35�
5.6 Segmentation Service Element (SSE).35�
5.6.1 Procedures .35�
5.6.2 Requirements for procedures .36�
5.6.2.1 Requirements for the segmentation procedure .36�
5.6.2.2 Requirements for the re-assembly procedure .36�
5.6.3 Segment encoding .37�
5.7 Co-ordinationFunction.37�
Annex A (informative): PSS1 Message Content . 39�
A.1 Maximum length of an ISI APDU or a SSE segment encoded in a facility information element . 39�
A.2 Example of the encoding of an ANF-ISIMM MIGRATION RESPONSE PDU in an ISI Invoke
APDU in a PSS1 FACILITY PDU . 39�
Annex B (informative): Bibliography . 41�
Annex C (informative): Change requests . 42�
History . 43�

ETSI

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5 ETSI TS 100 392-3-10 V1.1.1 (2018-05)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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 (https://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.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee TETRA and Critical
Communications Evolution (TCCE).
The present document is part 3, sub-part 10 of a multi-part deliverable covering the Terrestrial Trunked Radio
(TETRA); Voice plus Data (V+D), as identified below:
Part 1: "General network design";
Part 2: "Air Interface (AI)";
Part 3: "Interworking at the Inter-System Interface (ISI)":
Sub-part 1: "General design";
Sub-part 2: "Additional Network Feature Individual Call (ANF-ISIIC)";
Sub-part 3: "Additional Network Feature Group Call (ANF-ISIGC)";
Sub-part 4: "Additional Network Feature Short Data Service (ANF-ISISDS)";
Sub-part 5: "Additional Network Feature for Mobility Management (ANF-ISIMM)";
Sub-part 6: "Speech format implementation for circuit mode transmission";
Sub-part 7: "Speech Format Implementation for Packet Mode Transmission";
Sub-part 8: "Generic Speech Format Implementation";
Sub-part 9: "Transport layer independent, General design";
Sub-part 10: "General design, PSS1 over E.1";
Sub-part 11: "General design, SIP/IP";
Sub-part 12: "Transport layer independent Additional Network Feature Individual Call (ANF-ISIIC)";
Sub-part 13: "Transport layer independent Additional Network Feature Group Call (ANF-ISIGC)";
Sub-part 14: "Transport layer independent Additional Network Feature Short Data Service (ANF-ISISDS)";
ETSI

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6 ETSI TS 100 392-3-10 V1.1.1 (2018-05)
Sub-part 15: Transport layer independent Additional Network Feature, Mobility Management
(ANF-ISIMM)";
Part 4: "Gateways basic operation";
Part 5: "Peripheral Equipment Interface (PEI)";
Part 7: "Security";
Part 9: "General requirements for supplementary services";
Part 10: "Supplementary services stage 1";
Part 11: "Supplementary services stage 2";
Part 12: "Supplementary services stage 3";
Part 13: "SDL model of the Air Interface (AI)";
Part 14: "Protocol Implementation Conformance Statement (PICS) proforma specification";
Part 15: "TETRA frequency bands, duplex spacings and channel numbering";
Part 16: "Network Performance Metrics";
Part 17: "TETRA V+D and DMO specifications";
Part 18: "Air interface optimized applications";
NOTE 1: 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.
NOTE 2: Some parts are also published as Technical Specifications such as ETSI TS 100 392-2 and those may be
the latest version of the document.
The present document is based on ETSI EN 300 392-3-1 [i.2]. The main differences are:
� General information about ISI is included in ETSI TS 100 392-3-9 [2].
� Information about ISI APDU to PSS1 message mapping is added.
� Signalling sequences are added.
For all subparts in the TETRA specification ETSI EN 300 392-3, "Interworking at the Inter-System Interface (ISI)", the
terms ISI and TETRA ISI are equivalent.
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.
ETSI

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7 ETSI TS 100 392-3-10 V1.1.1 (2018-05)
1 Scope
The present document defines the transport of the Inter-System Interface (ISI) using PSS1 as transport layer. It
specifies:
� the PSS1 signalling used for transport of ISI APDUs; and
� the general protocol mechanism, called ISI Mediation Function which coordinates the communication between
TETRA systems.
The ISI Mediation Function applies to any TETRA Switching and Management Infrastructure (SwMI) which supports
the ISI.
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
https://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 TS 100 392-3-8: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3:
Interworking at the Inter-System Interface (ISI); Sub-part 8: Generic Speech Format
Implementation".
[2] ETSI TS 100 392-3-9: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3:
Interworking at the Inter-System Interface (ISI); Sub-part 9: Transport layer independent, General
design".
[3] ETSI TS 100 392-3-12: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3:
Interworking at the Inter-System Interface (ISI); Sub-part 12: Transport layer independent
Additional Network Feature Individual Call (ANF-ISIIC)".
[4] ETSI TS 100 392-3-13: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) Part 3:
Interworking at the Inter-System Interface (ISI) Sub-part 13: Transport layer independent
Additional Network Feature Group Call (ANF-ISIGC)".
[5] ETSI TS 100 392-3-14: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3:
Interworking at the Inter-System Interface (ISI); Sub-part 14: Transport layer independent
Additional Network Feature Short Data Service (ANF-ISISDS)".
[6] ETSI TS 100 392-3-15: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3:
Interworking at the Inter-System Interface (ISI); Sub-part 15: Transport layer independent
Additional Network Feature, Mobility Management (ANF-ISIMM)".
[7] ETSI ETS 300 402-1: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling
System No. one (DSS1) protocol; Data link layer; Part 1: General aspects [ITU-T
Recommendation Q.920 (1993), modified]".
[8] ETSI ETS 300 402-2: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling
System No. one (DSS1) protocol; Data link layer; Part 2: General protocol specification [ITU-T
Recommendation Q.921 (1993), modified]".
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8 ETSI TS 100 392-3-10 V1.1.1 (2018-05)
[9] ISO/IEC 11572: "Information technology - Telecommunications and information exchange
between systems - Private Integrated Services Network - Circuit mode bearer services - Inter-
exchange signalling procedures and protocol".
[10] ISO/IEC 11582: "Information technology - Telecommunications and information exchange
between systems - Private Integrated Services Network - Generic functional protocol for the
support of supplementary services - Inter-exchange signalling procedures and protocol".
[11] Recommendation ITU-T G.704: "Synchronous frame structures used at 1544, 6312, 2048, 8448
and 44 736 kbit/s hierarchical levels".
[12] Recommendation ITU-T Q.931: "ISDN user-network interface layer 3 specification for basic call
control".
[13] ETSI EN 300 172: "Private Integrated Services Network (PISN); Inter-exchange signalling
protocol; Circuit-mode basic services [ISO/IEC 11572 (2000) modified]".
[14] ISO/IEC 11571: "Information technology - Telecommunications and information exchange
between systems - Private Integrated Services Networks - Addressing".
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] Recommendation ITU-T X.229: "Remote Operations: Protocol specification".
[i.2] ETSI TS 100 392-3-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 1: General design".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ISO/IEC 11582 [10] and the following
apply:
call independent: property of information which is conveyed between SwMIs on a signalling connection which is not
related to an audio call
call independent signalling connection: signalling connection established between ANF-ISI entities located in
different Switching and Management Infrastructures is not related to audio calls
co-ordination Function: entity which provides co-ordination between different ANF-ISI entities, ROSE, SSE and
GFT Control for different TETRA basic and supplementary services
destination SwMI: Switching and Management Infrastructure where the receiving ANF-ISI entity is located (in the
context of a single one-way exchange of information between two ANF-ISI entities located in different Switching and
Management Infrastructures)
Generic Functional Transport Control (GFT Control) entity: entity that exists within a Switching and Management
Infrastructure and provides a range of services to the ANF-ISI entities and ROSE via the co-ordination Function
NOTE: The services are defined in clause 6 of ISO/IEC 11582 [10].
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9 ETSI TS 100 392-3-10 V1.1.1 (2018-05)
group attached SwMI: Switching and Management Infrastructure different from the home SwMI of the group
considered in which at least one individual subscriber member of the group is attached to that group
Group TETRA Subscriber Identity (GTSI): TETRA Subscriber Identity assigned to a group
home SwMI: Switching and Management Infrastructure in which the subscription of a given user is registered
NOTE: That user is defined as being a subscriber (see below the definition of that term).
invocation: action taken by the user or by the service provider to execute a specific service function within real time
ISI Mediation Function: entity which provides to different ANF-ISI entities the services that are not supported by the
transport layer protocol
Location Area (LA): area within radio coverage of a base station or group of base stations within which a Mobile
Station (MS) is allowed to operate
Mobile Network Identity (MNI): identity that uniquely identifies the SwMI
NOTE: It consists of the Mobile Country Code (MCC) and the Mobile Network Code (MNC).
Mobile Station (MS): physical grouping that contains all of the mobile equipment that is used to obtain TETRA
services
NOTE: By definition, a mobile station contains at least one Mobile Radio Stack (MRS).
originating SwMI: in the context of a TETRA call, Switching and Management Infrastructure where the calling user is
registered (which implies that this user is located in that SwMI) or Switching and Management Infrastructure which
originates a Call independent signalling connection
PISN number: number that unambiguously identifies the addressed PINX or an addressable entity associated with that
PINX as defined in ISO/IEC 11571 [14]
segmentation: act of generating two or more PDUs derived from one ISI PDU
semi-permanent connection: logical connection between two network nodes (SwMIs)
service user: abstract representation of the totality of those entities in a single system that makes use of a service
through a single access point
Short Subscriber Identity (SSI): network specific portion of a TSI
NOTE: A SSI is only unique within one TETRA sub-domain (one TETRA network).
source SwMI: Switching and Management Infrastructure where the sending ANF-ISI entity is located (in the context of
a single one-way exchange of information between two ANF-ISI entities located in different Switching and
Management Infrastructures)
subscriber: user of a telecommunication service, based on a contract with the provider of the service
NOTE 1: The subscriber may be an individual or a group: in the first case it is identified by an ITSI, in the second,
by a GTSI.
NOTE 2: The individual subscriber is able to access an SwMI either through a MS or Line Station.
supplementary service: service which modifies or supplements a basic bearer service or a basic teleservice
NOTE: A supplementary service cannot be offered to a customer as a stand-alone service. It should be offered in
combination with a bearer service or a teleservice.
Switching and Management Infrastructure (SwMI): all of the TETRA equipment for a Voice plus Data (V+D)
network
terminating SwMI: in the context of a TETRA call, Switching and Management Infrastructure where the called user is
registered (which implies that this user is located in that SwMI) or Switching and Management Infrastructure which
terminates a Call independent signalling connection
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10 ETSI TS 100 392-3-10 V1.1.1 (2018-05)
TETRA Subscriber Identity (TSI): global TETRA network address that is to identify an individual or a group
subscriber within the domain of all TETRA networks
user: entity using the services of a telecommunications network via an externally accessible service access point
NOTE: An individual user may be a person or an application process.
user information: TETRA coded speech
visited SwMI: TETRA network which MNI is not equal to the user's or the group's MNI
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ANF Additional Network Feature
ANF-ISI all Additional Network Features of the Inter-System Interface
APDU Application Protocol Data Unit
ASN.1 Abstract Syntax Notation One
C Conditional
E.1 E-carrier signal level 1, 2 048 kbit/s
ECMA European Computer Manufacturers Association
GFP Generic Functional Protocol
GFT Generic Functional Transport
GTSI Group TETRA Subscriber Identity
HDLC High-level Data Link Control
ISI Inter-System Interface
ISIIC Inter System Interface Individual Call
ISIGC Inter System Interface Group Call
ISIMM Inter System Interface Mobility Management
ISISDS Inter System Interface Short Data Service
ISISS Inter System Interface Supplementary Services
ISSI Individual Short Subscriber Identity
ITSI Individual TETRA Subscriber Identity
LAPD Link Access Procedure for the D-Channel
M Mandatory
MCC Mobile Country Code
MM Mobility Management
MNC Mobile Network Code
MNI Mobile Network Identity
MRS Mobile Radio Stack
MS Mobile Station
NFE Network Facility Extension
O Optional
PC Protocol Control
PDU Protocol Data Unit
PINX Private Integrated Network eXchange
PISN Private Integrated Services Network
PSS1 Private Signalling System 1
ROSE Remote Operation Service Element
SDL Specific
...