SIST EN 300 396-1 V1.2.1:2012
(Main)Terrestrial Trunked Radio (TETRA) - Technical requirements for Direct Mode Operation (DMO) - Part 1: General network design
Terrestrial Trunked Radio (TETRA) - Technical requirements for Direct Mode Operation (DMO) - Part 1: General network design
REN/TETRA-08196
Prizemni snopovni radio (TETRA) - Tehnične zahteve za neposredni način delovanja (DMO) - 1. del: Splošna zasnova omrežja
Večdelni dokument EN 300 396 določa neposredni način delovanja (DMO) prizemnega snopovnega radia (TETRA)
Določa osnovni radijski vmesnik, medsebojno delovanje skupin neposrednega načina (DM) prek ponavljalnikov in medsebojno delovanje s sistemom prizemnega snopovnega radia, ki podpira govor in podatke (V+D), prek prehodov. Poleg osnovnih nosilnih in telekomunikacijskih storitev določa tudi varnostne vidike neposrednega načina delovanja prizemnega snopovnega radia in storitve, ki jih podpira.
Ta dokument se uporablja za splošno zasnovo omrežij za neposredni način delovanja prizemnega snopovnega radia na naslednji način:
• določa in opredeljuje referenčne točke vodovnega načina za mobilne postaje (MS), ponavljalnike in prehode do komutacijske in upravne infrastrukture (SwMI);
• določa in opredeljuje protokolarni sklad radijskega vmesnika, v katerem so navedene različne funkcije plasti in podplasti;
• določa in opredeljuje naslavljanje in identitete neposrednega načina delovanja prizemnega snopovnega radia ter njihovo organizacijo v skupine glede na različne funkcije;
• določa in opredeljuje funkcije, ki jih omogočajo vodovne telekomunikacijske storitve za govor in osnovne storitve za prenos podatkov;
• določa in opredeljuje značilne storitve za razširitev zmogljivosti nosilnih in telekomunikacijskih storitev v vodovnem načinu.
• določa in opredeljuje funkcije, povezane s prenosom kratkih podatkovnih sporočil.
OPOMBA: Če se pojavi neskladje med tem dokumentom in katerim koli drugim delom večdelnega dokumenta EN 300 396, ima prednost drugi del. Ta del se bo posodabljal tako pogosto, da se bo ohranila celovitost tega dokumenta kot celote.
General Information
Standards Content (Sample)
Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
European Standard
Terrestrial Trunked Radio (TETRA);
Technical requirements for Direct Mode Operation (DMO);
Part 1: General network design
2 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
Reference
REN/TETRA-08196
Keywords
air interface, DMO, radio, TETRA
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3 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
Contents
Intellectual Property Rights . 6
Foreword . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 12
3.3 Abbreviations . 12
4 DMO reference points . . 13
5 Protocol architecture for DMO . 13
6 DM addressing and identities . 13
6.1 Introduction . 13
6.2 Mobile Network Identity (MNI) . 14
6.3 Subscriber identities . 15
6.3.1 General . 15
6.3.2 TETRA Subscriber Identity (TSI) . 15
6.3.3 Short Subscriber Identity (SSI) . 16
6.3.3A Open identities . 16
6.3.4 Installation of TSIs. 16
6.3.5 Use of subscriber identities . 16
6.4 DM repeater or gateway address . 17
6.4.1 Contents of DM repeater or gateway address . 17
6.4.2 Use of DM repeater or gateway address . 17
6.5 TETRA Equipment Identity (TEI) . 17
6.5.1 Contents of TEI . 17
6.5.2 Allocation principles for TEI . 17
6.6 Layer 2 addresses and labels . 18
6.6.1 DM colour code . 18
6.7 Use of TETRA addresses . 18
6.7.1 Air interface addressing functions . 18
6.7.2 Address placement in primitives and PDUs . 19
6.7.2.1 Use of addresses at layer 2 for direct MS-MS operation . 19
6.7.2.2 Use of TSI at layer 3 for direct MS-MS operation . 20
6.7.2.3 Use of addresses for DM repeater operation . 20
6.7.2.4 Use of addresses for DM gateway operation . 20
6.7.3 Address and identity comparison . 20
7 DM circuit mode teleservices and bearer services . 21
8 DM intrinsic services. 21
9 DM Short Data Service (SDS) . 21
Annex A (informative): DMO reference points . 22
A.1 Introduction . 22
A.2 Reference configuration . 22
A.2.1 Reference models . 22
A.2.1.1 Direct mode mobile station (DM-MS) . 23
A.2.1.2 Dual watch mobile station (DW-MS) . 23
A.2.1.3 Direct mode repeater (DM-REP) . 24
A.2.1.4 Direct mode gateway (DM-GATE) . 25
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4 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
A.2.1.5 Direct mode repeater/gateway combination (DM-REP/GATE) . 25
A.3 TETRA DM access . . 25
A.3.1 DM-MS access . 25
A.3.2 MS functional groups . 26
A.3.3 Reference points . 27
Annex B (informative): Protocol architecture for DMO . 28
B.1 Introduction . 28
B.2 DM-MS protocol architecture . 28
B.2.1 Overview . 28
B.2.2 Air interface layer 1 . 29
B.2.3 Air interface layer 2 . 30
B.2.4 Air interface layer 3 . 31
B.2.4.1 Direct Mode Call Control (DMCC) entity . 31
B.2.4.1.1 Intrinsic services control . 31
B.2.4.1.2 Short Data Service (SDS) . 31
B.2.4.1.3 SDS-TL service . 31
B.2.4.2 DMMM entity (optional) . 32
B.2.5 Security management . 32
B.2.5.1 Identity management (authentication) . 32
B.2.5.2 Key management . 32
Annex C (informative): DM circuit mode teleservices and bearer services . 33
C.1 Service definitions . 33
C.1.1 Bearer service . 33
C.1.2 Teleservice . 33
C.1.3 Intrinsic service . 33
C.2 Services offered in TETRA DMO . 34
C.2.1 Direct Mode teleservices . 34
C.2.1.1 Individual call . 34
C.2.1.2 Group call . 34
C.2.1.3 SDS based teleservices . 35
C.2.2 Direct Mode bearer services . 35
C.2.2.1 Circuit mode unprotected bearer services . 35
C.2.2.2 Circuit mode protected bearer services . 35
C.2.2.3 Short Data Service (SDS) . 35
C.2.2.4 SDS-TL service . 36
C.2.3 Intrinsic services . 37
C.2.3.1 DM late entry . 37
C.2.3.2 Transmitting Party Number Identification (TPNI) . 37
C.2.3.3 Emergency calls . 37
Annex D (normative): TETRA type approval code information element . 38
D.1 Encoding of the TAC information element . 38
D.2 Application for the TAC value . 38
Annex E (normative): TETRA final assembly code information element . 41
E.1 Encoding of the FAC information element . 41
E.2 Application for the FAC value . 41
E.3 WEB page contents for FAC data base . 41
Annex F (normative): TETRA electronic serial number information element . 44
F.1 Encoding of the ESN information element . 44
F.2 Usage of the ESN . 44
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5 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
F.3 Usage of check sum of the equipment identity . 44
Annex G (informative): Bibliography . 45
History . 46
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6 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
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 final draft European Standard (EN) has been produced by ETSI Technical Committee Terrestrial Trunked Radio
(TETRA), and is now submitted for the ETSI standards One-step Approval Procedure.
The present document is part 1 of a multi-part deliverable covering the Technical requirements for Direct Mode
Operation (DMO), as identified below:
Part 1: "General network design";
Part 2: "Radio aspects";
Part 3: "Mobile Station to Mobile Station (MS-MS) Air Interface (AI) protocol";
Part 4: "Type 1 repeater air interface";
Part 5: "Gateway air interface";
Part 6: "Security";
Part 7: "Type 2 repeater air interface"; (Historical)
Part 8: "Protocol Implementation Conformance Statement (PICS) proforma specification"; (Historical)
Part 10: "Managed Direct Mode Operation (M-DMO)". (Historical)
NOTE: Part 7, part 8 and part 10 of this multi-part deliverable are of status "historical" and will not be updated
according to this version of the standard.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 6 months after doa
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7 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
1 Scope
The multi-part deliverable EN 300 396 defines the Terrestrial Trunked Radio (TETRA) Direct Mode Operation (DMO).
It specifies the basic air interface, the inter-working between Direct Mode (DM) groups via repeaters, and inter-working
with the TETRA Voice plus Data (V+D) system via gateways. It also specifies the security aspects in TETRA DMO,
and the intrinsic services that are supported in addition to the basic bearer services and teleservices.
The present document applies to the general network design of TETRA DMO as follows:
• it defines and specifies the circuit mode reference points for the Mobile Station (MS), repeater and gateway to
the Switching and Management Infrastructure (SwMI);
• it defines and specifies models of the air interface protocol stack where the different functions of layers and
sub-layers are listed;
• it defines and specifies the TETRA DMO addressing and identities and their organization in groups
corresponding to the different functions;
• it defines and specifies the functions provided by the circuit mode teleservices used for speech and basic
services used for data transfer;
• it defines and specifies the intrinsic services that extend the capabilities of the circuit mode bearer services and
teleservices;
• it defines and specifies the functions related to the transport of short data messages.
NOTE: If a discrepancy occurs between the present document and any other part of the EN 300 396 multi-part
deliverable, then the other part will take precedence. This part will be updated at a frequency consistent
with maintaining the integrity of the present document as a whole.
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 300 396-2: "Terrestrial Trunked Radio (TETRA); Technical requirements for Direct
Mode Operation (DMO); Part 2: Radio aspects".
[3] ETSI EN 300 396-3: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 3: Mobile Station to Mobile Station (MS-MS) Air Interface (AI)
Protocol".
[4] ETSI EN 300 396-4: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 4: Type 1 repeater air interface".
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8 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
[5] ETSI EN 300 396-5: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 5: Gateway air interface".
[6] ETSI EN 300 396-6: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 6: Security".
[7] ETSI EN 300 395-2: "Terrestrial Trunked Radio (TETRA); Speech codec for full-rate traffic
channel; Part 2: TETRA codec".
[8] ITU-T Recommendation E.218: "Management of the allocation of terrestrial trunk radio Mobile
Country Codes".
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 Directives: "ETSI Statutes; ETSI Rules of Procedure; ETSI Board Working Procedures;
Powers and Functions of the Board; Terms of Reference of the Operational Co-ordination Group
(OCG); ETSI Technical Working Procedures; ETSI Drafting rules".
[i.2] ETSI EN 300 392-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 1: General network design".
[i.3] Void.
[i.4] ETSI TR 102 300-5: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers'
guide; Part 5: Guidance on numbering and addressing".
[i.5] ETSI EG 202 118: "Services and Protocols for Advanced Networks (SPAN); The structure of the
TETRA numbering resource, interworking and high level policy for administration".
[i.6] ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces - Reference configurations".
[i.7] ETSI EN 300 392-5: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) and Direct
Mode Operation (DMO); Part 5: Peripheral Equipment Interface (PEI)".
[i.8] ETSI TS 100 392-18-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) and Direct
Mode Operation (DMO); Part 18: Air interface optimized applications; Sub-part 1: Location
Information Protocol (LIP)".
[i.9] ETSI EN 300 396-7: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 7: Type 2 repeater air interface". (Historical).
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in the ETSI Directives [i.1] and the following
apply:
Bit Error Ratio (BER): ratio of the bits wrongly received to all bits received in a given logical channel
call: complete sequence of related call transactions between DM-MSs
NOTE 1: There are two types of call, individual call or group call. An individual call is a complete sequence of
related call transactions between two DM-MSs. A group call is a complete sequence of related call
transactions involving two or more DM-MSs. The number of participants in a group call is not fixed.
Participants may join (late entry) and leave an ongoing call.
NOTE 2: For calls without presence check there is no guaranty that anyone is listening.
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9 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
call transaction: all of the functions associated with a complete unidirectional transmission of information
NOTE: A call is made up of one or more sequential call transactions.
called user application: user application which receives an incoming call
calling user application: user application which initiates an outgoing call
Direct Mode Call Control (DMCC): layer 3 entity responsible for setting up and maintaining a call in DMO
Direct Mode GATEway (DM-GATE): device that provides gateway connectivity between a DM-MS(s) and the
TETRA TMO network
NOTE: The gateway provides the interface between TETRA DMO and TETRA TMO. A gateway may provide
only the gateway function (DM-GATE) or may provide the functions of both a DM repeater and a DM
gateway during a call (DM-REP/GATE).
Direct Mode Mobile Station (DM-MS): physical grouping that contains all of the mobile equipment that is used to
obtain TETRA DM services
NOTE: A DM-MS may have one of three roles:
� master: if the DM-MS is either active in a call transaction transmitting traffic or control data, or is
reserving the channel by means of channel reservation signalling;
� slave: if the DM-MS is receiving traffic and/or signalling in a call;
� idle: if the DM-MS is not in a call.
Direct Mode Operation (DMO): mode of simplex operation where mobile subscriber radio units may communicate
using radio frequencies which may be monitored by, but which are outside the control of, the TETRA TMO network
NOTE: Direct Mode Operation is performed without intervention of any base station.
Direct Mode REPeater (DM-REP): device that operates in TETRA DM and provides a repeater function to enable
two or more DM-MSs to extend their coverage range
NOTE: It may be either a type 1 DM-REP, capable of supporting only a single call on the air interface, or a type 2
DM-REP, capable of supporting two calls on the air interface. A type 1 DM-REP may operate on either a
single RF carrier (type 1A DM-REP) or a pair of duplex-spaced RF carriers (type 1B DM-REP). A type 2
DM-REP [i.9] operates on a pair of duplex-spaced RF carriers.
DM channel: specific grouping of timeslots in the DM multiplex structure related to a particular DM RF carrier
(i.e. DM frequency)
NOTE: The grouping may not always be fixed, but in DMO when operating in frequency efficient mode as an
example, there are two DM channels, identified by the letters A and B.
Dual mode switchable Mobile Station (DU-MS): MS that is capable to operate in TETRA DMO or in TETRA TMO
one mode at a time
NOTE: Only one mode can be selected at any given time and the MS is not capable of monitoring a DM RF
carrier while in TMO or TMO channels while in DMO.
Dual Watch Mobile Station (DW-MS): MS that is either full dual watch MS (F-DW-MS) or idle dual watch MS
(I-DW-MS)
NOTE: When idle, the MS periodically monitors both the DM RF carrier and the TMO control channel. If the MS
is performing full dual watch, it is also capable of periodically monitoring the TMO control channel while
in a DM call and a DM RF carrier while in a TMO call. Alternatively the MS may perform idle dual
watch, in which case it need not be capable of monitoring the TMO control channel while involved in a
DM activity (e.g. call) or a DM RF carrier while involved in a TMO activity (e.g. call).
Functional group: set of functions which may be needed in TETRA DMO access arrangements
NOTE 1: In a particular access arrangement, specific functions in a function group may but need not be present.
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10 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
NOTE 2: Specific functions in a functional group may be performed in one or more pieces of equipment.
frequency efficient mode: mode of operation where two independent DM communications are supported on a single
RF carrier
NOTE: In frequency efficient mode the two DM channels are identified as channel A and channel B.
Full Dual Watch Mobile Station (F-DW-MS): MS that is capable of both TETRA DMO and TETRA TMO and
capable to monitor the DM RF carrier while in a TMO service and a TMO control channel while in a DM service
NOTE: When idle, the MS periodically monitors both the DM RF carrier and the TMO control channel. The MS
is also capable of periodically monitoring the TMO control channel while in a DM call and a DM RF
carrier while in a TMO call.
gateway: DM-GATE or DM-REP/GATE
NOTE: Generic term which describes either a pure DM-GATE or a combined implementation with a repeater
(DM-REP/GATE).
Idle Dual Watch Mobile Station (I-DW-MS): MS that is capable of both TETRA DMO and TETRA TMO and when
idle capable to periodically monitor both modes
NOTE: When idle, the MS periodically monitors both the DM RF carrier and the TMO control channel. The MS
need not be capable of monitoring the TMO control channel while involved in a DM activity (e.g. call) or
a DM RF carrier while involved in a TMO activity (e.g. call).
logical channel: any distinct data path
NOTE: Logical channels are considered to operate between logical endpoints.
Message Erasure Rate (MER): ratio of the messages detected as wrong by the receiver to all messages received in a
given logical channel
normal mode: mode of operation where only one DM communication is supported on a RF carrier
occupation: time where a call transaction is in progress on a channel
Open MNI (O-MNI): open network address used for all DM networks on the selected frequency
NOTE: O-MNI consists of all binary ones (11…11 ). The O-MNI is used in combination with the O-SSI or the
network specific SSI.
Open SSI (O-SSI): short subscriber identity used in order to obtain openness within a given MNI
NOTE: O-SSI consists of all binary ones (11…11 ). The O-SSI is used in combination with the O-MNI or the
network specific MNI.
Open TSI (O-TSI): open TETRA subscriber identity, which is a combination of O-MNI + O-SSI
NOTE: O-TSI consists of all binary ones (11…11 ).
pre-emption: transfer of the master role to the requested DM-MS
NOTE: This process may occur within a call during occupation or to set-up a new call during either occupation or
reservation.
Radio Frequency carrier (RF carrier): radio frequency channel
NOTE: This is a specified portion of the RF spectrum. In DMO, the RF carrier separation is 25 kHz.
random access: request permission from the current master to use the DM channel or to change the ongoing call timing
NOTE: The request of the DM channel usage may be issued by any DM-MS that wishes to transmit traffic or
short data either during occupation or reservation period. The request of changing the ongoing call timing
may be issued by any DW-MS involved in the call as a slave either during occupation or reservation
period.
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11 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
R0: reference point within the Mobile Terminating unit (MT) that corresponds to the top of the mobile radio not
including the routing
NOTE: R0 acts as the network service boundary and exists in all MTs.
R1: reference point between Terminal Equipment (TE2) and the Mobile Termination (MT2)
NOTE: There may be several alternative interface protocols at R1, including existing standards.
R2: reference point at the TETRA air interface
recent user: DM-MS that was master of the call transaction immediately prior to the current master's call transaction in
a call
recent user priority: service which gives the recent user a preferred access to request transmission when the current
master is ceasing its call transaction in a group call
NOTE: This service is controlled by the current master.
reference configuration: conceptual configuration useful in identifying various possible physical access arrangements
to TETRA DMO
NOTE 1: Two concepts are used in defining reference configurations:
- reference points; and
- functional groups.
NOTE 2: Physical interfaces that do not correspond to a reference point will not be described in the TETRA
deliverables.
reference point: conceptual point dividing functional groups
NOTE: In a specific access arrangement, a reference point may correspond to a physical interface between pieces
of equipment, or there need not be any physical interface corresponding to the reference point. Physical
interfaces that do not correspond to a reference point will not be the subject of TETRA DMO interface
recommendations.
reservation: time where a "channel reservation" signal is present on the channel
short data service: data service providing both user-defined short messages and predefined 16-bit messages
simplex: mode of working in which information can be transferred in both directions but not at the same time
Trunked Mode Operation (TMO): mode of operation where MSs communicate via the TETRA V+D air interface
which is controlled by the TETRA Switching and Management Infrastructure (SwMI)
NOTE: This is also called V+D operation. The abbreviation "TMO" is used in the present document to pair with
the abbreviation "DMO" instead of the abbreviation "V+D". "TMO" abbreviation is not used in
EN 300 392-1 [i.2] and EN 300 392-2 [1].
Type 1 DM-REP: DM repeater that supports a single call on the air interface
NOTE: There are two varieties of type 1 DM-REP. A type 1A DM-REP operates on a single RF carrier. A
type 1B DM-REP operates on a pair of duplex-spaced RF carriers, one used as the "uplink" from
DM-MSs to the DM-REP and the other used as the "downlink" from the DM-REP to DM-MSs.
Type 2 DM-REP: DM repeater that is capable of supporting two simultaneous calls on the air interface
NOTE: A type 2 DM-REP operates on a pair of duplex-spaced RF carriers, one used as the "uplink" from
DM-MSs to the DM-REP and the other used as the "downlink" from the DM-REP to DM-MSs.
V+D operation: mode of operation for communication via the TETRA V+D air interface which is controlled by the
TETRA Switching and Management Infrastructure (SwMI)
NOTE: This is also called Trunked Mode Operation (TMO).
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12 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
>> Possible physical interfaces
Ud TETRA Direct Mode air interface access point
Um TETRA Trunked Mode air interface access point
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AI Air Interface
AP2 Access Point for Bearer Services at R reference point
AP3 Access Point for Teleservices
ASSI Alias Short Subscriber Identity
BER Bit Error Rate
C Control plane
CRC Cyclic Redundancy Check
DLL Data Link Layer
DM Direct Mode
DMCC Direct Mode Call Control
DM-GATE Direct Mode GATEway
DMMM Direct Mode Mobility Management
DM-MS Direct Mode Mobile Station
DMO Direct Mode Operation
DM-REP Direct Mode REPeater
DM-REP/GATE Direct Mode REPeater/GATEway
DO-MS Direct mode Only Mobile Station
DSB Direct mode Synchronization Burst
DU-MS Dual mode switchable Mobile Station
DW-MS Dual Watch Mobile Station
ESN Electronic Serial Number
FAC Final Assembly Code
F-DW-MS Full Dual Watch Mobile Station
FEC Forward Error Correction
GSSI Group Short Subscriber Identity
GTSI Group TETRA Subscriber Identity
I-DW-MS Idle Dual Watch - Mobile Station
ISSI Individual Short Subscriber Identity
ITSI Individual TETRA Subscriber Identity
LIP Location Information Protocol
LS Line connected Station
MCC Mobile Country Code
MER Message Erasure Rate
MMI Man Machine Interface
MNC Mobile Network Code
MNI Mobile Network Identity
MS Mobile Station
MT Mobile Termination
MT0 Mobile Termination type 0
MT2 Mobile Termination type 2
NSAP Network Service Access Point
O-MNI Open MNI
O-SSI Open SSI
O-TSI Open TSI
PDU Protocol Data Unit
PL Physical Layer
RF Radio Frequency
RSSI Radio-Signal-Strength-Indicator
SCK Static Cipher Key
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13 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
SDS Short Data Service
SDS-TL SDS Transport Layer
SDU Service Data Unit
SIM Subscriber Identity Module
SS Supplementary Services
SSI Short Subscriber Identity
SwMI Switching and Management Infrastructure
TAC Type Approval Code
TE Terminal Equipment
TE2 TE presenting a TETRA interface
TEI TETRA Equipment Identity
TMI TETRA Management Identity
TMO Trunked Mode Operation
TPNI Transmitting Party Number Identification
TSI TETRA Subscriber Identity
TVP Time Variant Parameter
U User plane
USSI Un-exchanged Short Subscriber Identity
WAP Wireless Application Protocol
4 DMO reference points
Annex A gives information of the general reference configuration and reference points of TETRA DMO mobile
stations, repeater and gateways used in TETRA DMO standardization.
5 Protocol architecture for DMO
Annex B describes the protocol architecture principles used in TETRA DMO standardization.
6 DM addressing and identities
6.1 Introduction
Clause 6 defines the DMO TETRA addresses and identities that shall be used by all TETRA DMO equipment.
The identities are organized into the following groups, corresponding to the different functions of the addresses and
identities.
• Mobile Network Identity (MNI);
• TETRA Subscriber Identities (TSI);
• Short Subscriber Identities (SSI);
• TETRA Equipment Identities (TEI);
• DM repeater or gateway address.
TETRA addresses and identities are designed to support the following objectives:
1) to allow a large number of networks (and network operators) to co-exist, and for each network to support a
large number of subscribers;
2) to be able to uniquely identify any subscriber in any TETRA DM channel;
3) to be able to identify the serving repeater or gateway in any TETRA DM channel.
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14 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
The main TETRA identities are the subscriber identities. A key difference between TETRA and public mobile networks
is the existence of group identities. As far as possible, group identities within TETRA shall be treated identically to
individual identities, i.e. group and individual identities shall have the same structure and shall be allocated from the
same TETRA identities space.
The individual subscriber identities shall have a special role to provide a unique identification of terminal users because
an individual subscriber identity can only refer to one MT. By contrast, a group subscriber identity is intended to refer
to several MTs.
TETRA DM uses the same addressing scheme for subscriber identities as TETRA TMO. As defined in.
EN 300 392-1 [i.2].
NOTE: The subscriber identities may be transferable, and may be removed from the equipment by the user.
The relationship between the different TETRA identities and the other addresses is shown in figure 6.1.
Subscriber GTSI
ITSI
Numbers
ITSI GTSI
TETRA DMO GSSI
ISSI
One TSI Family
ADDRESSES
DM
Repeater/ TEI
gateway
address
Repeater/
Individual Group
gateway
Figure 6.1: Relationship between TETRA DM addresses
6.2 Mobile Network Identity (MNI)
The MNI shall consist of two sub-parts as shown in figure 6.2.
10 bits 14 bits
Mobile Mobile
Country Code Network Code
(MCC) (MNC)
Figure 6.2: Contents of MNI
The coding for the MCC and MNC fields is defined as follows:
• The MCC shall use 10 bits to encode the 3 decimal digit value of the country code as defined in
ITU-T Recommendation E.218 [8].
EXAMPLE: France has the country code 208 decimal
This is coded as 00 1101 0000 binary (0D0 hexadecimal).
The undefined binary codes of decimal values 1 000 to 1 022 are reserved and shall not be used.
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15 Final draft ETSI EN 300 396-1 V1.2.0 (2011-08)
• MNC shall be allocated by the National Administration for each country. A unique MNC shall be allocated to
each operator. The MNC shall use 14 bits to encode a 4 decimal digit value of the network code. The
maximum value is 9 999 decimal or 270F in hexadecimal format, refer to TR 102 300-5 [i.4], EG 202 118 [i.5]
or ITU-T Recommendation E.218 [8].
The undefined binary codes of decimal values 10 000 to 16 382 are reserved and shall not be used.
• The MCC of decimal value 1 023 (10 bits binary ones) and the MNC of decimal value 16 383 (14 bits binary
ones) shall be used only in combination for the Open MNI (O-MNI).
6.3 Subscriber identities
6.3.1 General
Subscriber identities (TSI or SSI) shall exist in two sizes:
• TETRA Subscriber Identity (TSI), 48 bits long;
• Short Subscriber Identity (SSI), 24 bits long.
The TSI shall consist of the MNI and the SSI combined as shown in figure 6.3.
The SSI shall be a truncation of the TSI.
10 bits 14 bits 24 bits
Mobile Mobile Network Specific
Country Code Network Code Short Subscriber Identity
(MCC) (MNC) (SSI)
Figure 6.3: Contents of TSI
TSI identities shall have a fixed length structure that has the same information elements as defined in
ITU-T Recommendation E.218 [8].
Each TSI shall be unique across the complete TETRA domain, i.e. all TETRA networks, but each SSI shall only be
unique in one TETRA sub-domain, i.e. one TETRA network.
6.3.2 TETRA Subscriber Identity (TSI)
Each DM-MS shall contain at least one family of TSIs. Each TSI family shall contain one Individual TETRA
Subscriber Identity (ITSI) which provides a unique address to a particular TETRA Subscriber and may also have
several Group TETRA Subscriber Identities (GTSIs), in which a number of particular individual TETRA subscribers
may be members.
One TSI family:
• 1 x ITSI;
• N x GTSI.
The partitioning of the address space between ITSIs, and GTSIs shall only be known inside the relevant TETRA
sub-domain. Outside of this sub-domain ITSI and GTSI cannot be distinguished. The partitioning rules are outside the
scope of the present document.
The following will only consider the requirements for a single family. A single termination may contain more than one
TSI family, and in this case each family shall meet these requirements independently of the other families.
TSIs shall be allocated by the network operators. A DM-MS s
...
European Standard
Terrestrial Trunked Radio (TETRA);
Technical requirements for Direct Mode Operation (DMO);
Part 1: General network design
2 ETSI EN 300 396-1 V1.2.1 (2011-12)
Reference
REN/TETRA-08196
Keywords
air interface, DMO, radio, TETRA
ETSI
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ETSI
3 ETSI EN 300 396-1 V1.2.1 (2011-12)
Contents
Intellectual Property Rights . 6
Foreword . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 12
3.3 Abbreviations . 12
4 DMO reference points . . 13
5 Protocol architecture for DMO . 13
6 DM addressing and identities . 13
6.1 Introduction . 13
6.2 Mobile Network Identity (MNI) . 14
6.3 Subscriber identities . 15
6.3.1 General . 15
6.3.2 TETRA Subscriber Identity (TSI) . 15
6.3.3 Short Subscriber Identity (SSI) . 16
6.3.3A Open identities . 16
6.3.4 Installation of TSIs. 16
6.3.5 Use of subscriber identities . 16
6.4 DM repeater or gateway address . 17
6.4.1 Contents of DM repeater or gateway address . 17
6.4.2 Use of DM repeater or gateway address . 17
6.5 TETRA Equipment Identity (TEI) . 17
6.5.1 Contents of TEI . 17
6.5.2 Allocation principles for TEI . 17
6.6 Layer 2 addresses and labels . 18
6.6.1 DM colour code . 18
6.7 Use of TETRA addresses . 19
6.7.1 Air interface addressing functions . 19
6.7.2 Address placement in primitives and PDUs . 19
6.7.2.1 Use of addresses at layer 2 for direct MS-MS operation . 19
6.7.2.2 Use of TSI at layer 3 for direct MS-MS operation . 20
6.7.2.3 Use of addresses for DM repeater operation . 20
6.7.2.4 Use of addresses for DM gateway operation . 20
6.7.3 Address and identity comparison . 21
7 DM circuit mode teleservices and bearer services . 21
8 DM intrinsic services. 21
9 DM Short Data Service (SDS) . 21
Annex A (informative): DMO reference points . 22
A.1 Introduction . 22
A.2 Reference configuration . 22
A.2.1 Reference models . 22
A.2.1.1 Direct mode mobile station (DM-MS) . 23
A.2.1.2 Dual watch mobile station (DW-MS) . 23
A.2.1.3 Direct mode repeater (DM-REP) . 24
A.2.1.4 Direct mode gateway (DM-GATE) . 25
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4 ETSI EN 300 396-1 V1.2.1 (2011-12)
A.2.1.5 Direct mode repeater/gateway combination (DM-REP/GATE) . 25
A.3 TETRA DM access . . 26
A.3.1 DM-MS access . 26
A.3.2 MS functional groups . 26
A.3.3 Reference points . 27
Annex B (informative): Protocol architecture for DMO . 28
B.1 Introduction . 28
B.2 DM-MS protocol architecture . 28
B.2.1 Overview . 28
B.2.2 Air interface layer 1 . 29
B.2.3 Air interface layer 2 . 30
B.2.4 Air interface layer 3 . 31
B.2.4.1 Direct Mode Call Control (DMCC) entity . 31
B.2.4.1.1 Intrinsic services control . 31
B.2.4.1.2 Short Data Service (SDS) . 31
B.2.4.1.3 SDS-TL service . 31
B.2.4.2 DMMM entity (optional) . 32
B.2.5 Security management . 32
B.2.5.1 Identity management (authentication) . 32
B.2.5.2 Key management . 32
Annex C (informative): DM circuit mode teleservices and bearer services . 33
C.1 Service definitions . 33
C.1.1 Bearer service . 33
C.1.2 Teleservice . 33
C.1.3 Intrinsic service . 33
C.2 Services offered in TETRA DMO . 34
C.2.1 Direct Mode teleservices . 34
C.2.1.1 Individual call . 34
C.2.1.2 Group call . 35
C.2.1.3 SDS based teleservices . 35
C.2.2 Direct Mode bearer services . 35
C.2.2.1 Circuit mode unprotected bearer services . 35
C.2.2.2 Circuit mode protected bearer services . 35
C.2.2.3 Short Data Service (SDS) . 35
C.2.2.4 SDS-TL service . 36
C.2.3 Intrinsic services . 37
C.2.3.1 DM late entry . 37
C.2.3.2 Transmitting Party Number Identification (TPNI) . 37
C.2.3.3 Emergency calls . 37
Annex D (normative): TETRA type approval code information element . 38
D.1 Encoding of the TAC information element . 38
D.2 Application for the TAC value . 38
Annex E (normative): TETRA final assembly code information element . 41
E.1 Encoding of the FAC information element . 41
E.2 Application for the FAC value . 41
E.3 WEB page contents for FAC data base . 41
Annex F (normative): TETRA electronic serial number information element . 44
F.1 Encoding of the ESN information element . 44
F.2 Usage of the ESN . 44
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5 ETSI EN 300 396-1 V1.2.1 (2011-12)
F.3 Usage of check sum of the equipment identity . 44
Annex G (informative): Bibliography . 45
History . 46
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6 ETSI EN 300 396-1 V1.2.1 (2011-12)
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 1 of a multi-part deliverable covering the Technical requirements for Direct Mode
Operation (DMO), as identified below:
Part 1: "General network design";
Part 2: "Radio aspects";
Part 3: "Mobile Station to Mobile Station (MS-MS) Air Interface (AI) protocol";
Part 4: "Type 1 repeater air interface";
Part 5: "Gateway air interface";
Part 6: "Security";
Part 7: "Type 2 repeater air interface"; (Historical)
Part 8: "Protocol Implementation Conformance Statement (PICS) proforma specification"; (Historical)
Part 10: "Managed Direct Mode Operation (M-DMO)". (Historical)
NOTE: Part 7, part 8 and part 10 of this multi-part deliverable are of status "historical" and will not be updated
according to this version of the standard.
National transposition dates
Date of adoption of this EN: 22 December 2011
Date of latest announcement of this EN (doa): 31 March 2012
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 September 2012
Date of withdrawal of any conflicting National Standard (dow): 30 September 2012
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7 ETSI EN 300 396-1 V1.2.1 (2011-12)
1 Scope
The multi-part deliverable EN 300 396 defines the Terrestrial Trunked Radio (TETRA) Direct Mode Operation (DMO).
It specifies the basic air interface, the inter-working between Direct Mode (DM) groups via repeaters, and inter-working
with the TETRA Voice plus Data (V+D) system via gateways. It also specifies the security aspects in TETRA DMO,
and the intrinsic services that are supported in addition to the basic bearer services and teleservices.
The present document applies to the general network design of TETRA DMO as follows:
• it defines and specifies the circuit mode reference points for the Mobile Station (MS), repeater and gateway to
the Switching and Management Infrastructure (SwMI);
• it defines and specifies models of the air interface protocol stack where the different functions of layers and
sub-layers are listed;
• it defines and specifies the TETRA DMO addressing and identities and their organization in groups
corresponding to the different functions;
• it defines and specifies the functions provided by the circuit mode teleservices used for speech and basic
services used for data transfer;
• it defines and specifies the intrinsic services that extend the capabilities of the circuit mode bearer services and
teleservices;
• it defines and specifies the functions related to the transport of short data messages.
NOTE: If a discrepancy occurs between the present document and any other part of the EN 300 396 multi-part
deliverable, then the other part will take precedence. This part will be updated at a frequency consistent
with maintaining the integrity of the present document as a whole.
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 300 396-2: "Terrestrial Trunked Radio (TETRA); Technical requirements for Direct
Mode Operation (DMO); Part 2: Radio aspects".
[3] ETSI EN 300 396-3: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 3: Mobile Station to Mobile Station (MS-MS) Air Interface (AI)
Protocol".
[4] ETSI EN 300 396-4: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 4: Type 1 repeater air interface".
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8 ETSI EN 300 396-1 V1.2.1 (2011-12)
[5] ETSI EN 300 396-5: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 5: Gateway air interface".
[6] ETSI EN 300 396-6: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 6: Security".
[7] ETSI EN 300 395-2: "Terrestrial Trunked Radio (TETRA); Speech codec for full-rate traffic
channel; Part 2: TETRA codec".
[8] ITU-T Recommendation E.218: "Management of the allocation of terrestrial trunk radio Mobile
Country Codes".
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 Directives: "ETSI Statutes; ETSI Rules of Procedure; ETSI Board Working Procedures;
Powers and Functions of the Board; Terms of Reference of the Operational Co-ordination Group
(OCG); ETSI Technical Working Procedures; ETSI Drafting rules".
[i.2] ETSI EN 300 392-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 1: General network design".
[i.3] Void.
[i.4] ETSI TR 102 300-5: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers'
guide; Part 5: Guidance on numbering and addressing".
[i.5] ETSI EG 202 118: "Services and Protocols for Advanced Networks (SPAN); The structure of the
TETRA numbering resource, interworking and high level policy for administration".
[i.6] ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces - Reference configurations".
[i.7] ETSI EN 300 392-5: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) and Direct
Mode Operation (DMO); Part 5: Peripheral Equipment Interface (PEI)".
[i.8] ETSI TS 100 392-18-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) and Direct
Mode Operation (DMO); Part 18: Air interface optimized applications; Sub-part 1: Location
Information Protocol (LIP)".
[i.9] ETSI EN 300 396-7: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 7: Type 2 repeater air interface". (Historical).
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in the ETSI Directives [i.1] and the following
apply:
Bit Error Ratio (BER): ratio of the bits wrongly received to all bits received in a given logical channel
call: complete sequence of related call transactions between DM-MSs
NOTE 1: There are two types of call, individual call or group call. An individual call is a complete sequence of
related call transactions between two DM-MSs. A group call is a complete sequence of related call
transactions involving two or more DM-MSs. The number of participants in a group call is not fixed.
Participants may join (late entry) and leave an ongoing call.
NOTE 2: For calls without presence check there is no guaranty that anyone is listening.
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9 ETSI EN 300 396-1 V1.2.1 (2011-12)
call transaction: all of the functions associated with a complete unidirectional transmission of information
NOTE: A call is made up of one or more sequential call transactions.
called user application: user application which receives an incoming call
calling user application: user application which initiates an outgoing call
Direct Mode Call Control (DMCC): layer 3 entity responsible for setting up and maintaining a call in DMO
Direct Mode GATEway (DM-GATE): device that provides gateway connectivity between a DM-MS(s) and the
TETRA TMO network
NOTE: The gateway provides the interface between TETRA DMO and TETRA TMO. A gateway may provide
only the gateway function (DM-GATE) or may provide the functions of both a DM repeater and a DM
gateway during a call (DM-REP/GATE).
Direct Mode Mobile Station (DM-MS): physical grouping that contains all of the mobile equipment that is used to
obtain TETRA DM services
NOTE: A DM-MS may have one of three roles:
� master: if the DM-MS is either active in a call transaction transmitting traffic or control data, or is
reserving the channel by means of channel reservation signalling;
� slave: if the DM-MS is receiving traffic and/or signalling in a call;
� idle: if the DM-MS is not in a call.
Direct Mode Operation (DMO): mode of simplex operation where mobile subscriber radio units may communicate
using radio frequencies which may be monitored by, but which are outside the control of, the TETRA TMO network
NOTE: Direct Mode Operation is performed without intervention of any base station.
Direct Mode REPeater (DM-REP): device that operates in TETRA DM and provides a repeater function to enable
two or more DM-MSs to extend their coverage range
NOTE: It may be either a type 1 DM-REP, capable of supporting only a single call on the air interface, or a type 2
DM-REP, capable of supporting two calls on the air interface. A type 1 DM-REP may operate on either a
single RF carrier (type 1A DM-REP) or a pair of duplex-spaced RF carriers (type 1B DM-REP). A type 2
DM-REP [i.9] operates on a pair of duplex-spaced RF carriers.
DM channel: specific grouping of timeslots in the DM multiplex structure related to a particular DM RF carrier
(i.e. DM frequency)
NOTE: The grouping may not always be fixed, but in DMO when operating in frequency efficient mode as an
example, there are two DM channels, identified by the letters A and B.
Dual mode switchable Mobile Station (DU-MS): MS that is capable to operate in TETRA DMO or in TETRA TMO
one mode at a time
NOTE: Only one mode can be selected at any given time and the MS is not capable of monitoring a DM RF
carrier while in TMO or TMO channels while in DMO.
Dual Watch Mobile Station (DW-MS): MS that is either full dual watch MS (F-DW-MS) or idle dual watch MS
(I-DW-MS)
NOTE: When idle, the MS periodically monitors both the DM RF carrier and the TMO control channel. If the MS
is performing full dual watch, it is also capable of periodically monitoring the TMO control channel while
in a DM call and a DM RF carrier while in a TMO call. Alternatively the MS may perform idle dual
watch, in which case it need not be capable of monitoring the TMO control channel while involved in a
DM activity (e.g. call) or a DM RF carrier while involved in a TMO activity (e.g. call).
Functional group: set of functions which may be needed in TETRA DMO access arrangements
NOTE 1: In a particular access arrangement, specific functions in a function group may but need not be present.
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10 ETSI EN 300 396-1 V1.2.1 (2011-12)
NOTE 2: Specific functions in a functional group may be performed in one or more pieces of equipment.
frequency efficient mode: mode of operation where two independent DM communications are supported on a single
RF carrier
NOTE: In frequency efficient mode the two DM channels are identified as channel A and channel B.
Full Dual Watch Mobile Station (F-DW-MS): MS that is capable of both TETRA DMO and TETRA TMO and
capable to monitor the DM RF carrier while in a TMO service and a TMO control channel while in a DM service
NOTE: When idle, the MS periodically monitors both the DM RF carrier and the TMO control channel. The MS
is also capable of periodically monitoring the TMO control channel while in a DM call and a DM RF
carrier while in a TMO call.
gateway: DM-GATE or DM-REP/GATE
NOTE: Generic term which describes either a pure DM-GATE or a combined implementation with a repeater
(DM-REP/GATE).
Idle Dual Watch Mobile Station (I-DW-MS): MS that is capable of both TETRA DMO and TETRA TMO and when
idle capable to periodically monitor both modes
NOTE: When idle, the MS periodically monitors both the DM RF carrier and the TMO control channel. The MS
need not be capable of monitoring the TMO control channel while involved in a DM activity (e.g. call) or
a DM RF carrier while involved in a TMO activity (e.g. call).
logical channel: any distinct data path
NOTE: Logical channels are considered to operate between logical endpoints.
Message Erasure Rate (MER): ratio of the messages detected as wrong by the receiver to all messages received in a
given logical channel
normal mode: mode of operation where only one DM communication is supported on a RF carrier
occupation: time where a call transaction is in progress on a channel
Open MNI (O-MNI): open network address used for all DM networks on the selected frequency
NOTE: O-MNI consists of all binary ones (11…11 ). The O-MNI is used in combination with the O-SSI or the
network specific SSI.
Open SSI (O-SSI): short subscriber identity used in order to obtain openness within a given MNI
NOTE: O-SSI consists of all binary ones (11…11 ). The O-SSI is used in combination with the O-MNI or the
network specific MNI.
Open TSI (O-TSI): open TETRA subscriber identity, which is a combination of O-MNI + O-SSI
NOTE: O-TSI consists of all binary ones (11…11 ).
pre-emption: transfer of the master role to the requested DM-MS
NOTE: This process may occur within a call during occupation or to set-up a new call during either occupation or
reservation.
Radio Frequency carrier (RF carrier): radio frequency channel
NOTE: This is a specified portion of the RF spectrum. In DMO, the RF carrier separation is 25 kHz.
random access: request permission from the current master to use the DM channel or to change the ongoing call timing
NOTE: The request of the DM channel usage may be issued by any DM-MS that wishes to transmit traffic or
short data either during occupation or reservation period. The request of changing the ongoing call timing
may be issued by any DW-MS involved in the call as a slave either during occupation or reservation
period.
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11 ETSI EN 300 396-1 V1.2.1 (2011-12)
R0: reference point within the Mobile Terminating unit (MT) that corresponds to the top of the mobile radio not
including the routing
NOTE: R0 acts as the network service boundary and exists in all MTs.
R1: reference point between Terminal Equipment (TE2) and the Mobile Termination (MT2)
NOTE: There may be several alternative interface protocols at R1, including existing standards.
R2: reference point at the TETRA air interface
recent user: DM-MS that was master of the call transaction immediately prior to the current master's call transaction in
a call
recent user priority: service which gives the recent user a preferred access to request transmission when the current
master is ceasing its call transaction in a group call
NOTE: This service is controlled by the current master.
reference configuration: conceptual configuration useful in identifying various possible physical access arrangements
to TETRA DMO
NOTE 1: Two concepts are used in defining reference configurations:
- reference points; and
- functional groups.
NOTE 2: Physical interfaces that do not correspond to a reference point will not be described in the TETRA
deliverables.
reference point: conceptual point dividing functional groups
NOTE: In a specific access arrangement, a reference point may correspond to a physical interface between pieces
of equipment, or there need not be any physical interface corresponding to the reference point. Physical
interfaces that do not correspond to a reference point will not be the subject of TETRA DMO interface
recommendations.
reservation: time where a "channel reservation" signal is present on the channel
short data service: data service providing both user-defined short messages and predefined 16-bit messages
simplex: mode of working in which information can be transferred in both directions but not at the same time
Trunked Mode Operation (TMO): mode of operation where MSs communicate via the TETRA V+D air interface
which is controlled by the TETRA Switching and Management Infrastructure (SwMI)
NOTE: This is also called V+D operation. The abbreviation "TMO" is used in the present document to pair with
the abbreviation "DMO" instead of the abbreviation "V+D". "TMO" abbreviation is not used in
EN 300 392-1 [i.2] and EN 300 392-2 [1].
Type 1 DM-REP: DM repeater that supports a single call on the air interface
NOTE: There are two varieties of type 1 DM-REP. A type 1A DM-REP operates on a single RF carrier. A
type 1B DM-REP operates on a pair of duplex-spaced RF carriers, one used as the "uplink" from
DM-MSs to the DM-REP and the other used as the "downlink" from the DM-REP to DM-MSs.
Type 2 DM-REP: DM repeater that is capable of supporting two simultaneous calls on the air interface
NOTE: A type 2 DM-REP operates on a pair of duplex-spaced RF carriers, one used as the "uplink" from
DM-MSs to the DM-REP and the other used as the "downlink" from the DM-REP to DM-MSs.
V+D operation: mode of operation for communication via the TETRA V+D air interface which is controlled by the
TETRA Switching and Management Infrastructure (SwMI)
NOTE: This is also called Trunked Mode Operation (TMO).
ETSI
12 ETSI EN 300 396-1 V1.2.1 (2011-12)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
>> Possible physical interfaces
Ud TETRA Direct Mode air interface access point
Um TETRA Trunked Mode air interface access point
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AI Air Interface
AP2 Access Point for Bearer Services at R reference point
AP3 Access Point for Teleservices
ASSI Alias Short Subscriber Identity
BER Bit Error Rate
C Control plane
CRC Cyclic Redundancy Check
DLL Data Link Layer
DM Direct Mode
DMCC Direct Mode Call Control
DM-GATE Direct Mode GATEway
DMMM Direct Mode Mobility Management
DM-MS Direct Mode Mobile Station
DMO Direct Mode Operation
DM-REP Direct Mode REPeater
DM-REP/GATE Direct Mode REPeater/GATEway
DO-MS Direct mode Only Mobile Station
DSB Direct mode Synchronization Burst
DU-MS Dual mode switchable Mobile Station
DW-MS Dual Watch Mobile Station
ESN Electronic Serial Number
FAC Final Assembly Code
F-DW-MS Full Dual Watch Mobile Station
FEC Forward Error Correction
GSSI Group Short Subscriber Identity
GTSI Group TETRA Subscriber Identity
I-DW-MS Idle Dual Watch - Mobile Station
ISSI Individual Short Subscriber Identity
ITSI Individual TETRA Subscriber Identity
LIP Location Information Protocol
LS Line connected Station
MCC Mobile Country Code
MER Message Erasure Rate
MMI Man Machine Interface
MNC Mobile Network Code
MNI Mobile Network Identity
MS Mobile Station
MT Mobile Termination
MT0 Mobile Termination type 0
MT2 Mobile Termination type 2
NSAP Network Service Access Point
O-MNI Open MNI
O-SSI Open SSI
O-TSI Open TSI
PDU Protocol Data Unit
PL Physical Layer
RF Radio Frequency
RSSI Radio-Signal-Strength-Indicator
SCK Static Cipher Key
ETSI
13 ETSI EN 300 396-1 V1.2.1 (2011-12)
SDS Short Data Service
SDS-TL SDS Transport Layer
SDU Service Data Unit
SIM Subscriber Identity Module
SS Supplementary Services
SSI Short Subscriber Identity
SwMI Switching and Management Infrastructure
TAC Type Approval Code
TE Terminal Equipment
TE2 TE presenting a TETRA interface
TEI TETRA Equipment Identity
TMI TETRA Management Identity
TMO Trunked Mode Operation
TPNI Transmitting Party Number Identification
TSI TETRA Subscriber Identity
TVP Time Variant Parameter
U User plane
USSI Un-exchanged Short Subscriber Identity
WAP Wireless Application Protocol
4 DMO reference points
Annex A gives information of the general reference configuration and reference points of TETRA DMO mobile
stations, repeater and gateways used in TETRA DMO standardization.
5 Protocol architecture for DMO
Annex B describes the protocol architecture principles used in TETRA DMO standardization.
6 DM addressing and identities
6.1 Introduction
Clause 6 defines the DMO TETRA addresses and identities that shall be used by all TETRA DMO equipment.
The identities are organized into the following groups, corresponding to the different functions of the addresses and
identities.
• Mobile Network Identity (MNI);
• TETRA Subscriber Identities (TSI);
• Short Subscriber Identities (SSI);
• TETRA Equipment Identities (TEI);
• DM repeater or gateway address.
TETRA addresses and identities are designed to support the following objectives:
1) to allow a large number of networks (and network operators) to co-exist, and for each network to support a
large number of subscribers;
2) to be able to uniquely identify any subscriber in any TETRA DM channel;
3) to be able to identify the serving repeater or gateway in any TETRA DM channel.
ETSI
14 ETSI EN 300 396-1 V1.2.1 (2011-12)
The main TETRA identities are the subscriber identities. A key difference between TETRA and public mobile networks
is the existence of group identities. As far as possible, group identities within TETRA shall be treated identically to
individual identities, i.e. group and individual identities shall have the same structure and shall be allocated from the
same TETRA identities space.
The individual subscriber identities shall have a special role to provide a unique identification of terminal users because
an individual subscriber identity can only refer to one MT. By contrast, a group subscriber identity is intended to refer
to several MTs.
TETRA DM uses the same addressing scheme for subscriber identities as TETRA TMO. As defined in.
EN 300 392-1 [i.2].
NOTE: The subscriber identities may be transferable, and may be removed from the equipment by the user.
The relationship between the different TETRA identities and the other addresses is shown in figure 6.1.
Subscriber GTSI
ITSI
Numbers
ITSI GTSI
TETRA DMO GSSI
ISSI
One TSI Family
ADDRESSES
DM
Repeater/ TEI
gateway
address
Repeater/
Individual Group
gateway
Figure 6.1: Relationship between TETRA DM addresses
6.2 Mobile Network Identity (MNI)
The MNI shall consist of two sub-parts as shown in figure 6.2.
10 bits 14 bits
Mobile Mobile
Country Code Network Code
(MCC) (MNC)
Figure 6.2: Contents of MNI
The coding for the MCC and MNC fields is defined as follows:
• The MCC shall use 10 bits to encode the 3 decimal digit value of the country code as defined in
ITU-T Recommendation E.218 [8].
EXAMPLE: France has the country code 208 decimal
This is coded as 00 1101 0000 binary (0D0 hexadecimal).
The undefined binary codes of decimal values 1 000 to 1 022 are reserved and shall not be used.
ETSI
15 ETSI EN 300 396-1 V1.2.1 (2011-12)
• MNC shall be allocated by the National Administration for each country. A unique MNC shall be allocated to
each operator. The MNC shall use 14 bits to encode a 4 decimal digit value of the network code. The
maximum value is 9 999 decimal or 270F in hexadecimal format, refer to TR 102 300-5 [i.4], EG 202 118 [i.5]
or ITU-T Recommendation E.218 [8].
The undefined binary codes of decimal values 10 000 to 16 382 are reserved and shall not be used.
• The MCC of decimal value 1 023 (10 bits binary ones) and the MNC of decimal value 16 383 (14 bits binary
ones) shall be used only in combination for the Open MNI (O-MNI).
6.3 Subscriber identities
6.3.1 General
Subscriber identities (TSI or SSI) shall exist in two sizes:
• TETRA Subscriber Identity (TSI), 48 bits long;
• Short Subscriber Identity (SSI), 24 bits long.
The TSI shall consist of the MNI and the SSI combined as shown in figure 6.3.
The SSI shall be a truncation of the TSI.
10 bits 14 bits 24 bits
Mobile Mobile Network Specific
Country Code Network Code Short Subscriber Identity
(MCC) (MNC) (SSI)
Figure 6.3: Contents of TSI
TSI identities shall have a fixed length structure that has the same information elements as defined in
ITU-T Recommendation E.218 [8].
Each TSI shall be unique across the complete TETRA domain, i.e. all TETRA networks, but each SSI shall only be
unique in one TETRA sub-domain, i.e. one TETRA network.
6.3.2 TETRA Subscriber Identity (TSI)
Each DM-MS shall contain at least one family of TSIs. Each TSI family shall contain one Individual TETRA
Subscriber Identity (ITSI) which provides a unique address to a particular TETRA Subscriber and may also have
several Group TETRA Subscriber Identities (GTSIs), in which a number of particular individual TETRA subscribers
may be members.
One TSI family:
• 1 x ITSI;
• N x GTSI.
The partitioning of the address space between ITSIs, and GTSIs shall only be known inside the relevant TETRA
sub-domain. Outside of this sub-domain ITSI and GTSI cannot be distinguished. The partitioning rules are outside the
scope of the present document.
The following will only consider the requirements for a single family. A single termination may contain more than one
TSI family, and in this case each family shall meet these requirements independently of the other families.
TSIs shall be allocated by the network operators. A DM-MS shall possess at least one ITSI before it can be used.
A valid ITSI shall be required in order to support the air interface addressing procedures (refer to clauses 6.3.5 and 6.7).
ETSI
16 ETSI EN 30
...
SLOVENSKI STANDARD
01-februar-2012
3UL]HPQLVQRSRYQLUDGLR 7(75$ 7HKQLþQH]DKWHYH]DQHSRVUHGQLQDþLQ
GHORYDQMD '02 GHO 6SORãQD]DVQRYDRPUHåMD
Terrestrial Trunked Radio (TETRA) - Technical requirements for Direct Mode Operation
(DMO) - Part 1: General network design
Ta slovenski standard je istoveten z: EN 300 396-1 Version 1.2.1
ICS:
33.070.10 Prizemni snopovni radio Terrestrial Trunked Radio
(TETRA) (TETRA)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
European Standard
Terrestrial Trunked Radio (TETRA);
Technical requirements for Direct Mode Operation (DMO);
Part 1: General network design
2 ETSI EN 300 396-1 V1.2.1 (2011-12)
Reference
REN/TETRA-08196
Keywords
air interface, DMO, radio, TETRA
ETSI
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© European Telecommunications Standards Institute 2011.
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ETSI
3 ETSI EN 300 396-1 V1.2.1 (2011-12)
Contents
Intellectual Property Rights . 6
Foreword . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 12
3.3 Abbreviations . 12
4 DMO reference points . . 13
5 Protocol architecture for DMO . 13
6 DM addressing and identities . 13
6.1 Introduction . 13
6.2 Mobile Network Identity (MNI) . 14
6.3 Subscriber identities . 15
6.3.1 General . 15
6.3.2 TETRA Subscriber Identity (TSI) . 15
6.3.3 Short Subscriber Identity (SSI) . 16
6.3.3A Open identities . 16
6.3.4 Installation of TSIs. 16
6.3.5 Use of subscriber identities . 16
6.4 DM repeater or gateway address . 17
6.4.1 Contents of DM repeater or gateway address . 17
6.4.2 Use of DM repeater or gateway address . 17
6.5 TETRA Equipment Identity (TEI) . 17
6.5.1 Contents of TEI . 17
6.5.2 Allocation principles for TEI . 17
6.6 Layer 2 addresses and labels . 18
6.6.1 DM colour code . 18
6.7 Use of TETRA addresses . 19
6.7.1 Air interface addressing functions . 19
6.7.2 Address placement in primitives and PDUs . 19
6.7.2.1 Use of addresses at layer 2 for direct MS-MS operation . 19
6.7.2.2 Use of TSI at layer 3 for direct MS-MS operation . 20
6.7.2.3 Use of addresses for DM repeater operation . 20
6.7.2.4 Use of addresses for DM gateway operation . 20
6.7.3 Address and identity comparison . 21
7 DM circuit mode teleservices and bearer services . 21
8 DM intrinsic services. 21
9 DM Short Data Service (SDS) . 21
Annex A (informative): DMO reference points . 22
A.1 Introduction . 22
A.2 Reference configuration . 22
A.2.1 Reference models . 22
A.2.1.1 Direct mode mobile station (DM-MS) . 23
A.2.1.2 Dual watch mobile station (DW-MS) . 23
A.2.1.3 Direct mode repeater (DM-REP) . 24
A.2.1.4 Direct mode gateway (DM-GATE) . 25
ETSI
4 ETSI EN 300 396-1 V1.2.1 (2011-12)
A.2.1.5 Direct mode repeater/gateway combination (DM-REP/GATE) . 25
A.3 TETRA DM access . . 26
A.3.1 DM-MS access . 26
A.3.2 MS functional groups . 26
A.3.3 Reference points . 27
Annex B (informative): Protocol architecture for DMO . 28
B.1 Introduction . 28
B.2 DM-MS protocol architecture . 28
B.2.1 Overview . 28
B.2.2 Air interface layer 1 . 29
B.2.3 Air interface layer 2 . 30
B.2.4 Air interface layer 3 . 31
B.2.4.1 Direct Mode Call Control (DMCC) entity . 31
B.2.4.1.1 Intrinsic services control . 31
B.2.4.1.2 Short Data Service (SDS) . 31
B.2.4.1.3 SDS-TL service . 31
B.2.4.2 DMMM entity (optional) . 32
B.2.5 Security management . 32
B.2.5.1 Identity management (authentication) . 32
B.2.5.2 Key management . 32
Annex C (informative): DM circuit mode teleservices and bearer services . 33
C.1 Service definitions . 33
C.1.1 Bearer service . 33
C.1.2 Teleservice . 33
C.1.3 Intrinsic service . 33
C.2 Services offered in TETRA DMO . 34
C.2.1 Direct Mode teleservices . 34
C.2.1.1 Individual call . 34
C.2.1.2 Group call . 35
C.2.1.3 SDS based teleservices . 35
C.2.2 Direct Mode bearer services . 35
C.2.2.1 Circuit mode unprotected bearer services . 35
C.2.2.2 Circuit mode protected bearer services . 35
C.2.2.3 Short Data Service (SDS) . 35
C.2.2.4 SDS-TL service . 36
C.2.3 Intrinsic services . 37
C.2.3.1 DM late entry . 37
C.2.3.2 Transmitting Party Number Identification (TPNI) . 37
C.2.3.3 Emergency calls . 37
Annex D (normative): TETRA type approval code information element . 38
D.1 Encoding of the TAC information element . 38
D.2 Application for the TAC value . 38
Annex E (normative): TETRA final assembly code information element . 41
E.1 Encoding of the FAC information element . 41
E.2 Application for the FAC value . 41
E.3 WEB page contents for FAC data base . 41
Annex F (normative): TETRA electronic serial number information element . 44
F.1 Encoding of the ESN information element . 44
F.2 Usage of the ESN . 44
ETSI
5 ETSI EN 300 396-1 V1.2.1 (2011-12)
F.3 Usage of check sum of the equipment identity . 44
Annex G (informative): Bibliography . 45
History . 46
ETSI
6 ETSI EN 300 396-1 V1.2.1 (2011-12)
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 1 of a multi-part deliverable covering the Technical requirements for Direct Mode
Operation (DMO), as identified below:
Part 1: "General network design";
Part 2: "Radio aspects";
Part 3: "Mobile Station to Mobile Station (MS-MS) Air Interface (AI) protocol";
Part 4: "Type 1 repeater air interface";
Part 5: "Gateway air interface";
Part 6: "Security";
Part 7: "Type 2 repeater air interface"; (Historical)
Part 8: "Protocol Implementation Conformance Statement (PICS) proforma specification"; (Historical)
Part 10: "Managed Direct Mode Operation (M-DMO)". (Historical)
NOTE: Part 7, part 8 and part 10 of this multi-part deliverable are of status "historical" and will not be updated
according to this version of the standard.
National transposition dates
Date of adoption of this EN: 22 December 2011
Date of latest announcement of this EN (doa): 31 March 2012
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 September 2012
Date of withdrawal of any conflicting National Standard (dow): 30 September 2012
ETSI
7 ETSI EN 300 396-1 V1.2.1 (2011-12)
1 Scope
The multi-part deliverable EN 300 396 defines the Terrestrial Trunked Radio (TETRA) Direct Mode Operation (DMO).
It specifies the basic air interface, the inter-working between Direct Mode (DM) groups via repeaters, and inter-working
with the TETRA Voice plus Data (V+D) system via gateways. It also specifies the security aspects in TETRA DMO,
and the intrinsic services that are supported in addition to the basic bearer services and teleservices.
The present document applies to the general network design of TETRA DMO as follows:
• it defines and specifies the circuit mode reference points for the Mobile Station (MS), repeater and gateway to
the Switching and Management Infrastructure (SwMI);
• it defines and specifies models of the air interface protocol stack where the different functions of layers and
sub-layers are listed;
• it defines and specifies the TETRA DMO addressing and identities and their organization in groups
corresponding to the different functions;
• it defines and specifies the functions provided by the circuit mode teleservices used for speech and basic
services used for data transfer;
• it defines and specifies the intrinsic services that extend the capabilities of the circuit mode bearer services and
teleservices;
• it defines and specifies the functions related to the transport of short data messages.
NOTE: If a discrepancy occurs between the present document and any other part of the EN 300 396 multi-part
deliverable, then the other part will take precedence. This part will be updated at a frequency consistent
with maintaining the integrity of the present document as a whole.
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 300 396-2: "Terrestrial Trunked Radio (TETRA); Technical requirements for Direct
Mode Operation (DMO); Part 2: Radio aspects".
[3] ETSI EN 300 396-3: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 3: Mobile Station to Mobile Station (MS-MS) Air Interface (AI)
Protocol".
[4] ETSI EN 300 396-4: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 4: Type 1 repeater air interface".
ETSI
8 ETSI EN 300 396-1 V1.2.1 (2011-12)
[5] ETSI EN 300 396-5: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 5: Gateway air interface".
[6] ETSI EN 300 396-6: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 6: Security".
[7] ETSI EN 300 395-2: "Terrestrial Trunked Radio (TETRA); Speech codec for full-rate traffic
channel; Part 2: TETRA codec".
[8] ITU-T Recommendation E.218: "Management of the allocation of terrestrial trunk radio Mobile
Country Codes".
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 Directives: "ETSI Statutes; ETSI Rules of Procedure; ETSI Board Working Procedures;
Powers and Functions of the Board; Terms of Reference of the Operational Co-ordination Group
(OCG); ETSI Technical Working Procedures; ETSI Drafting rules".
[i.2] ETSI EN 300 392-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 1: General network design".
[i.3] Void.
[i.4] ETSI TR 102 300-5: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers'
guide; Part 5: Guidance on numbering and addressing".
[i.5] ETSI EG 202 118: "Services and Protocols for Advanced Networks (SPAN); The structure of the
TETRA numbering resource, interworking and high level policy for administration".
[i.6] ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces - Reference configurations".
[i.7] ETSI EN 300 392-5: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) and Direct
Mode Operation (DMO); Part 5: Peripheral Equipment Interface (PEI)".
[i.8] ETSI TS 100 392-18-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D) and Direct
Mode Operation (DMO); Part 18: Air interface optimized applications; Sub-part 1: Location
Information Protocol (LIP)".
[i.9] ETSI EN 300 396-7: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct
Mode Operation (DMO); Part 7: Type 2 repeater air interface". (Historical).
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in the ETSI Directives [i.1] and the following
apply:
Bit Error Ratio (BER): ratio of the bits wrongly received to all bits received in a given logical channel
call: complete sequence of related call transactions between DM-MSs
NOTE 1: There are two types of call, individual call or group call. An individual call is a complete sequence of
related call transactions between two DM-MSs. A group call is a complete sequence of related call
transactions involving two or more DM-MSs. The number of participants in a group call is not fixed.
Participants may join (late entry) and leave an ongoing call.
NOTE 2: For calls without presence check there is no guaranty that anyone is listening.
ETSI
9 ETSI EN 300 396-1 V1.2.1 (2011-12)
call transaction: all of the functions associated with a complete unidirectional transmission of information
NOTE: A call is made up of one or more sequential call transactions.
called user application: user application which receives an incoming call
calling user application: user application which initiates an outgoing call
Direct Mode Call Control (DMCC): layer 3 entity responsible for setting up and maintaining a call in DMO
Direct Mode GATEway (DM-GATE): device that provides gateway connectivity between a DM-MS(s) and the
TETRA TMO network
NOTE: The gateway provides the interface between TETRA DMO and TETRA TMO. A gateway may provide
only the gateway function (DM-GATE) or may provide the functions of both a DM repeater and a DM
gateway during a call (DM-REP/GATE).
Direct Mode Mobile Station (DM-MS): physical grouping that contains all of the mobile equipment that is used to
obtain TETRA DM services
NOTE: A DM-MS may have one of three roles:
master: if the DM-MS is either active in a call transaction transmitting traffic or control data, or is
reserving the channel by means of channel reservation signalling;
slave: if the DM-MS is receiving traffic and/or signalling in a call;
idle: if the DM-MS is not in a call.
Direct Mode Operation (DMO): mode of simplex operation where mobile subscriber radio units may communicate
using radio frequencies which may be monitored by, but which are outside the control of, the TETRA TMO network
NOTE: Direct Mode Operation is performed without intervention of any base station.
Direct Mode REPeater (DM-REP): device that operates in TETRA DM and provides a repeater function to enable
two or more DM-MSs to extend their coverage range
NOTE: It may be either a type 1 DM-REP, capable of supporting only a single call on the air interface, or a type 2
DM-REP, capable of supporting two calls on the air interface. A type 1 DM-REP may operate on either a
single RF carrier (type 1A DM-REP) or a pair of duplex-spaced RF carriers (type 1B DM-REP). A type 2
DM-REP [i.9] operates on a pair of duplex-spaced RF carriers.
DM channel: specific grouping of timeslots in the DM multiplex structure related to a particular DM RF carrier
(i.e. DM frequency)
NOTE: The grouping may not always be fixed, but in DMO when operating in frequency efficient mode as an
example, there are two DM channels, identified by the letters A and B.
Dual mode switchable Mobile Station (DU-MS): MS that is capable to operate in TETRA DMO or in TETRA TMO
one mode at a time
NOTE: Only one mode can be selected at any given time and the MS is not capable of monitoring a DM RF
carrier while in TMO or TMO channels while in DMO.
Dual Watch Mobile Station (DW-MS): MS that is either full dual watch MS (F-DW-MS) or idle dual watch MS
(I-DW-MS)
NOTE: When idle, the MS periodically monitors both the DM RF carrier and the TMO control channel. If the MS
is performing full dual watch, it is also capable of periodically monitoring the TMO control channel while
in a DM call and a DM RF carrier while in a TMO call. Alternatively the MS may perform idle dual
watch, in which case it need not be capable of monitoring the TMO control channel while involved in a
DM activity (e.g. call) or a DM RF carrier while involved in a TMO activity (e.g. call).
Functional group: set of functions which may be needed in TETRA DMO access arrangements
NOTE 1: In a particular access arrangement, specific functions in a function group may but need not be present.
ETSI
10 ETSI EN 300 396-1 V1.2.1 (2011-12)
NOTE 2: Specific functions in a functional group may be performed in one or more pieces of equipment.
frequency efficient mode: mode of operation where two independent DM communications are supported on a single
RF carrier
NOTE: In frequency efficient mode the two DM channels are identified as channel A and channel B.
Full Dual Watch Mobile Station (F-DW-MS): MS that is capable of both TETRA DMO and TETRA TMO and
capable to monitor the DM RF carrier while in a TMO service and a TMO control channel while in a DM service
NOTE: When idle, the MS periodically monitors both the DM RF carrier and the TMO control channel. The MS
is also capable of periodically monitoring the TMO control channel while in a DM call and a DM RF
carrier while in a TMO call.
gateway: DM-GATE or DM-REP/GATE
NOTE: Generic term which describes either a pure DM-GATE or a combined implementation with a repeater
(DM-REP/GATE).
Idle Dual Watch Mobile Station (I-DW-MS): MS that is capable of both TETRA DMO and TETRA TMO and when
idle capable to periodically monitor both modes
NOTE: When idle, the MS periodically monitors both the DM RF carrier and the TMO control channel. The MS
need not be capable of monitoring the TMO control channel while involved in a DM activity (e.g. call) or
a DM RF carrier while involved in a TMO activity (e.g. call).
logical channel: any distinct data path
NOTE: Logical channels are considered to operate between logical endpoints.
Message Erasure Rate (MER): ratio of the messages detected as wrong by the receiver to all messages received in a
given logical channel
normal mode: mode of operation where only one DM communication is supported on a RF carrier
occupation: time where a call transaction is in progress on a channel
Open MNI (O-MNI): open network address used for all DM networks on the selected frequency
NOTE: O-MNI consists of all binary ones (11…11 ). The O-MNI is used in combination with the O-SSI or the
network specific SSI.
Open SSI (O-SSI): short subscriber identity used in order to obtain openness within a given MNI
NOTE: O-SSI consists of all binary ones (11…11 ). The O-SSI is used in combination with the O-MNI or the
network specific MNI.
Open TSI (O-TSI): open TETRA subscriber identity, which is a combination of O-MNI + O-SSI
NOTE: O-TSI consists of all binary ones (11…11 ).
pre-emption: transfer of the master role to the requested DM-MS
NOTE: This process may occur within a call during occupation or to set-up a new call during either occupation or
reservation.
Radio Frequency carrier (RF carrier): radio frequency channel
NOTE: This is a specified portion of the RF spectrum. In DMO, the RF carrier separation is 25 kHz.
random access: request permission from the current master to use the DM channel or to change the ongoing call timing
NOTE: The request of the DM channel usage may be issued by any DM-MS that wishes to transmit traffic or
short data either during occupation or reservation period. The request of changing the ongoing call timing
may be issued by any DW-MS involved in the call as a slave either during occupation or reservation
period.
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11 ETSI EN 300 396-1 V1.2.1 (2011-12)
R0: reference point within the Mobile Terminating unit (MT) that corresponds to the top of the mobile radio not
including the routing
NOTE: R0 acts as the network service boundary and exists in all MTs.
R1: reference point between Terminal Equipment (TE2) and the Mobile Termination (MT2)
NOTE: There may be several alternative interface protocols at R1, including existing standards.
R2: reference point at the TETRA air interface
recent user: DM-MS that was master of the call transaction immediately prior to the current master's call transaction in
a call
recent user priority: service which gives the recent user a preferred access to request transmission when the current
master is ceasing its call transaction in a group call
NOTE: This service is controlled by the current master.
reference configuration: conceptual configuration useful in identifying various possible physical access arrangements
to TETRA DMO
NOTE 1: Two concepts are used in defining reference configurations:
- reference points; and
- functional groups.
NOTE 2: Physical interfaces that do not correspond to a reference point will not be described in the TETRA
deliverables.
reference point: conceptual point dividing functional groups
NOTE: In a specific access arrangement, a reference point may correspond to a physical interface between pieces
of equipment, or there need not be any physical interface corresponding to the reference point. Physical
interfaces that do not correspond to a reference point will not be the subject of TETRA DMO interface
recommendations.
reservation: time where a "channel reservation" signal is present on the channel
short data service: data service providing both user-defined short messages and predefined 16-bit messages
simplex: mode of working in which information can be transferred in both directions but not at the same time
Trunked Mode Operation (TMO): mode of operation where MSs communicate via the TETRA V+D air interface
which is controlled by the TETRA Switching and Management Infrastructure (SwMI)
NOTE: This is also called V+D operation. The abbreviation "TMO" is used in the present document to pair with
the abbreviation "DMO" instead of the abbreviation "V+D". "TMO" abbreviation is not used in
EN 300 392-1 [i.2] and EN 300 392-2 [1].
Type 1 DM-REP: DM repeater that supports a single call on the air interface
NOTE: There are two varieties of type 1 DM-REP. A type 1A DM-REP operates on a single RF carrier. A
type 1B DM-REP operates on a pair of duplex-spaced RF carriers, one used as the "uplink" from
DM-MSs to the DM-REP and the other used as the "downlink" from the DM-REP to DM-MSs.
Type 2 DM-REP: DM repeater that is capable of supporting two simultaneous calls on the air interface
NOTE: A type 2 DM-REP operates on a pair of duplex-spaced RF carriers, one used as the "uplink" from
DM-MSs to the DM-REP and the other used as the "downlink" from the DM-REP to DM-MSs.
V+D operation: mode of operation for communication via the TETRA V+D air interface which is controlled by the
TETRA Switching and Management Infrastructure (SwMI)
NOTE: This is also called Trunked Mode Operation (TMO).
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12 ETSI EN 300 396-1 V1.2.1 (2011-12)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
>> Possible physical interfaces
Ud TETRA Direct Mode air interface access point
Um TETRA Trunked Mode air interface access point
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AI Air Interface
AP2 Access Point for Bearer Services at R reference point
AP3 Access Point for Teleservices
ASSI Alias Short Subscriber Identity
BER Bit Error Rate
C Control plane
CRC Cyclic Redundancy Check
DLL Data Link Layer
DM Direct Mode
DMCC Direct Mode Call Control
DM-GATE Direct Mode GATEway
DMMM Direct Mode Mobility Management
DM-MS Direct Mode Mobile Station
DMO Direct Mode Operation
DM-REP Direct Mode REPeater
DM-REP/GATE Direct Mode REPeater/GATEway
DO-MS Direct mode Only Mobile Station
DSB Direct mode Synchronization Burst
DU-MS Dual mode switchable Mobile Station
DW-MS Dual Watch Mobile Station
ESN Electronic Serial Number
FAC Final Assembly Code
F-DW-MS Full Dual Watch Mobile Station
FEC Forward Error Correction
GSSI Group Short Subscriber Identity
GTSI Group TETRA Subscriber Identity
I-DW-MS Idle Dual Watch - Mobile Station
ISSI Individual Short Subscriber Identity
ITSI Individual TETRA Subscriber Identity
LIP Location Information Protocol
LS Line connected Station
MCC Mobile Country Code
MER Message Erasure Rate
MMI Man Machine Interface
MNC Mobile Network Code
MNI Mobile Network Identity
MS Mobile Station
MT Mobile Termination
MT0 Mobile Termination type 0
MT2 Mobile Termination type 2
NSAP Network Service Access Point
O-MNI Open MNI
O-SSI Open SSI
O-TSI Open TSI
PDU Protocol Data Unit
PL Physical Layer
RF Radio Frequency
RSSI Radio-Signal-Strength-Indicator
SCK Static Cipher Key
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13 ETSI EN 300 396-1 V1.2.1 (2011-12)
SDS Short Data Service
SDS-TL SDS Transport Layer
SDU Service Data Unit
SIM Subscriber Identity Module
SS Supplementary Services
SSI Short Subscriber Identity
SwMI Switching and Management Infrastructure
TAC Type Approval Code
TE Terminal Equipment
TE2 TE presenting a TETRA interface
TEI TETRA Equipment Identity
TMI TETRA Management Identity
TMO Trunked Mode Operation
TPNI Transmitting Party Number Identification
TSI TETRA Subscriber Identity
TVP Time Variant Parameter
U User plane
USSI Un-exchanged Short Subscriber Identity
WAP Wireless Application Protocol
4 DMO reference points
Annex A gives information of the general reference configuration and reference points of TETRA DMO mobile
stations, repeater and gateways used in TETRA DMO standardization.
5 Protocol architecture for DMO
Annex B describes the protocol architecture principles used in TETRA DMO standardization.
6 DM addressing and identities
6.1 Introduction
Clause 6 defines the DMO TETRA addresses and identities that shall be used by all TETRA DMO equipment.
The identities are organized into the following groups, corresponding to the different functions of the addresses and
identities.
• Mobile Network Identity (MNI);
• TETRA Subscriber Identities (TSI);
• Short Subscriber Identities (SSI);
• TETRA Equipment Identities (TEI);
• DM repeater or gateway address.
TETRA addresses and identities are designed to support the following objectives:
1) to allow a large number of networks (and network operators) to co-exist, and for each network to support a
large number of subscribers;
2) to be able to uniquely identify any subscriber in any TETRA DM channel;
3) to be able to identify the serving repeater or gateway in any TETRA DM channel.
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14 ETSI EN 300 396-1 V1.2.1 (2011-12)
The main TETRA identities are the subscriber identities. A key difference between TETRA and public mobile networks
is the existence of group identities. As far as possible, group identities within TETRA shall be treated identically to
individual identities, i.e. group and individual identities shall have the same structure and shall be allocated from the
same TETRA identities space.
The individual subscriber identities shall have a special role to provide a unique identification of terminal users because
an individual subscriber identity can only refer to one MT. By contrast, a group subscriber identity is intended to refer
to several MTs.
TETRA DM uses the same addressing scheme for subscriber identities as TETRA TMO. As defined in.
EN 300 392-1 [i.2].
NOTE: The subscriber identities may be transferable, and may be removed from the equipment by the user.
The relationship between the different TETRA identities and the other addresses is shown in figure 6.1.
Subscriber GTSI
ITSI
Numbers
ITSI GTSI
TETRA DMO GSSI
ISSI
One TSI Family
ADDRESSES
DM
Repeater/ TEI
gateway
address
Repeater/
Individual Group
gateway
Figure 6.1: Relationship between TETRA DM addresses
6.2 Mobile Network Identity (MNI)
The MNI shall consist of two sub-parts as shown in figure 6.2.
10 bits 14 bits
Mobile Mobile
Country Code Network Code
(MCC) (MNC)
Figure 6.2: Contents of MNI
The coding for the MCC and MNC fields is defined as follows:
• The MCC shall use 10 bits to encode the 3 decimal digit value of the country code as defined in
ITU-T Recommendation E.218 [8].
EXAMPLE: France has the country code 208 decimal
This is coded as 00 1101 0000 binary (0D0 hexadecimal).
The undefined binary codes of decimal values 1 000 to 1 022 are reserved and shall not be used.
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15 ETSI EN 300 396-1 V1.2.1 (2011-12)
• MNC shall be allocated by the National Administration for each country. A unique MNC shall be allocated to
each operator. The MNC shall use 14 bits to encode a 4 decimal digit value of the network code. The
maximum value is 9 999 decimal or 270F in hexadecimal format, refer to TR 102 300-5 [i.4], EG 202 118 [i.5]
or ITU-T Recommendation E.218 [8].
The undefined binary codes of decimal values 10 000 to 16 382 are reserved and shall not be used.
• The MCC of decimal value 1 023 (10 bits binary ones) and the MNC of decimal value 16 383 (14 bits binary
ones) shall be used only in combination for the Open MNI (O-MNI).
6.3 Subscriber identities
6.3.1 General
Subscriber identities (TSI or SSI) shall exist in two sizes:
• TETRA Subscriber Identity (TSI), 48 bits long;
• Short Subscriber Identity (SSI), 24 bits long.
The TSI shall consist of the MNI and the SSI combined as shown in figure 6.3.
The SSI shall be a truncation of the TSI.
10 bits 14 bits 24 bits
Mobile Mobile Network Specific
Country Code Network Code Short Subscriber Identity
(MCC) (MNC) (SSI)
Figure 6.3: Contents of TSI
TSI identities shall have a fixed length structure that has the same information elements as defined in
ITU-T Recommendation E.218 [8].
Each TSI shall be unique across the complete TETRA domain, i.e. all TETRA networks, but each SSI shall only be
unique in one TETRA sub-domain, i.e.
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