SIST EN 300 396-5 V1.3.1:2012

• Abstract:

  REN/TETRA-08195

• Status: Published
• Publication Date: 11-Jan-2012
• ICS: 33.070.10 - Terrestrial Trunked Radio (TETRA)
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 10-Jan-2012
• Due Date: 16-Mar-2012
• Completion Date: 12-Jan-2012
• Mandate: BC-T-344
• Ref Project: ETSI EN 300 396-5 V1.3.1 (2011-12) - Terrestrial Trunked Radio (TETRA); Technical requirements for Direct Mode Operation (DMO); Part 5: Gateway air interface

SIST EN 300 396-5 V1.3.1:2012 is the Slovenian version of ETSI EN 300 396-5 V1.3.1 for Terrestrial Trunked Radio (TETRA) Direct Mode Operation (DMO), Part 5: Gateway air interface. It specifies the gateway air interface and protocol behavior for a Direct Mode GATEway (DM-GATE) or a combined Direct Mode REPeater/GATEway (DM-REP/GATE) when a Direct Mode Mobile Station (DM-MS) operates through the gateway and interworks with the TETRA Voice plus Data (V+D) system. For engineers, quality managers, and buyers, it is the reference for gateway-connected DMO signaling, registration, call control, and traffic transfer.

What does SIST EN 300 396-5 V1.3.1:2012 specify?

SIST EN 300 396-5 V1.3.1:2012 specifies the DMO gateway air interface, including the physical layer, Data Link Layer (DLL), and network-layer behavior used when DMO works through a gateway. It applies to a standalone DM-GATE and to a DM-REP/GATE, and it also covers how a DM-MS operates with those gateway types.

The document is organized as a delta specification around earlier DMO parts. Clause 1 says the DM-MS protocol through a gateway is covered in clauses 5 to 8 and 14 to 15, while gateway procedures are covered in clauses 9 to 13 and 16 to 17. The normative annex mainly provides parameter values used by the protocol.

What are the key requirements of SIST EN 300 396-5 V1.3.1:2012?

SIST EN 300 396-5 V1.3.1:2012 defines how the gateway identifies itself, how the DM channel is interpreted, and how calls, registration, and traffic are handled across DMO and TMO.

Gateway identity and channel state

• The gateway registers and authenticates to the Switching and Management Infrastructure (SwMI) using its own ITSI and security keys, and it uses its own identity in TMO signaling. In practice, this means the gateway is not a passive relay - it behaves as a networked TETRA entity.
• Clause 4 explains four DM channel states: free, occupied, reserved, and registration phase. That state determines whether a DM-MS may place a call, request pre-emption, or register.
• The gateway may transmit a presence signal that carries the gateway address, can indicate allowed DM-MSs, and can provide frame and slot numbering. This lets field units synchronize before they transmit.

Call setup, traffic, and pre-emption

• Clause 4 describes group and individual calls through a gateway, including DM-MS to TM-MS and TM-MS to DM-MS cases. The gateway address is included in call set-up messages so the DM-MS knows which gateway to reach.
• The gateway becomes master or slave depending on the traffic direction, and it may reserve the channel after a call transaction. For users, this governs who controls timing and who may take over the channel next.
• The document defines changeover, pre-emption, and random access behavior. These procedures matter when a new call or short data transmission needs access while another transaction is active.

Registration and mobility management

• Clause 10 defines solicited and unsolicited registration, registration labels, acceptance and rejection, and cancellation of registration. In practice, the gateway uses registration to decide which DM-MSs can be addressed from TMO.
• The gateway may send DM-MS individual addresses to the SwMI if it is accepted as a DM gateway. If it does so, the TMO network can page individual DM-MSs behind the gateway.
• The gateway can request to start, continue, or stop DM gateway operation by using U-MM STATUS and can respond to D-MM STATUS commands from the SwMI. That keeps gateway state aligned with the TMO network.

Layer 2 and U-plane handling

• Clause 11 defines the U-plane converter between the DMO and TMO sides. It preserves timing, ordering, and half-slot pairing, and it may decode and re-encode traffic.
• Clause 12 defines the DM layer 2 service model using GMA-SAP, GMC-SAP, GMD-SAP, GMV-SAP, and GP-SAP. These service points separate C-plane signaling, management, traffic, and physical-layer exchange.
• The document also covers short data service, fragmentation, scrambling, error detection, and MAC procedures. That matters for interoperability because even small signaling differences can stop a gateway from carrying traffic correctly.

What terms does SIST EN 300 396-5 V1.3.1:2012 define?

• Direct Mode Operation (DMO) - A simplex TETRA mode where mobile units communicate outside base-station control.
• Direct Mode Call Control (DMCC) - The layer 3 entity that sets up and maintains a DMO call.
• Direct Mode Mobility Management (DMMM) - The layer 3 entity that handles registration to a gateway.
• Direct Mode GATEway (DM-GATE) - A device that provides gateway connectivity between DM-MS and the TETRA TMO network.
• Direct Mode REPeater/GATEway (DM-REP/GATE) - A combined repeater and gateway implementation that can perform both functions.
• SwMI - The TETRA Switching and Management Infrastructure that controls TMO operation.

Who uses SIST EN 300 396-5 V1.3.1:2012?

This standard is used by TETRA radio equipment manufacturers, gateway and repeater designers, system integrators, and network operators who need DMO/TMO interworking. Quality teams and buyers use it to check whether a product supports gateway-connected DMO, registration, and the required signaling behavior. Test and verification teams use it to assess protocol traces, state changes, and message handling.

Which standards are used with SIST EN 300 396-5 V1.3.1:2012?

SIST EN 300 396-5 V1.3.1:2012 relies on these normative references:

• EN 300 396-1 - General network design for TETRA DMO.
• EN 300 396-2 - Radio aspects used as the base for gateway-related DMO behavior.
• EN 300 396-3 - MS-MS air interface protocol, reused here with gateway-specific amendments.
• EN 300 396-4 - Type 1 repeater air interface, relevant when the gateway includes a repeater part.
• EN 300 392-2 - TETRA V+D air interface used on the TMO side.
• EN 300 396-6 - DMO security, used where gateway security behavior is involved.

What does the SIST EN 300 396-5 V1.3.1:2012 document contain?

The document contains protocol structures, state machines, service descriptions, and detailed message procedures for gateway-connected DMO. It includes call control procedures, mobility management, U-plane conversion rules, and layer 2 behavior for signaling and traffic.

It also includes mapping tables such as call priority, short data type identifier, and TX demand priority mappings between TMO and DMO. Figure 1 shows the protocol stack for gateway operation, and the clauses describe how messages are formed, addressed, repeated, fragmented, and synchronized across DMO and TMO.

Final draft ETSI EN 300 396-5 V1.3.0 (2011-08)

European Standard
Terrestrial Trunked Radio (TETRA);
Technical requirements for Direct Mode Operation (DMO);
Part 5: Gateway air interface
2 Final draft ETSI EN 300 396-5 V1.3.0 (2011-08)

Reference
REN/TETRA-08195
Keywords
air interface, gateway, protocol, radio, TETRA
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
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Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
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If you find errors in the present document, please send your comment to one of the following services:
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Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2011.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
3 Final draft ETSI EN 300 396-5 V1.3.0 (2011-08)
Contents
Intellectual Property Rights . 15
Foreword . 15
1 Scope . 16
2 References . 16
2.1 Normative references . 16
2.2 Informative references . 17
3 Definitions and abbreviations . 17
3.1 Definitions . 17
3.2 Abbreviations . 21
4 Overview of protocol. . 22
4.1 General . 22
4.2 The DM channel . 24
4.3 DM call procedures for operation with a gateway . 25
4.3.1 Constraints on the frame structure . 26
4.3.2 Setting up a call through a DM-GATE . 27
4.3.2.1 Group call from TMO to DM-MS via a DM-GATE . 27
4.3.2.2 Group call from DM-MS via a DM-GATE . 29
4.3.2.3 Individual call from TM-MS to DM-MS via a DM-GATE . 31
4.3.2.4 Individual call from DM-MS to TM-MS via a DM-GATE . 34
4.3.3 Changeover in a call via a DM-GATE. 36
4.3.4 Pre-emption of a direct mode call through a DM-GATE . 38
4.3.5 Short Data Service through a gateway . 39
4.3.6 Group call from DM-MS via DM-REP/GATE . 40
5 DM-MS layer 3 service description (for operation with a gateway) . 41
5.1 Introduction . 41
5.2 Services offered at the DMCC-SAP . 41
5.3 Description of primitives at the DMCC-SAP . 41
5.4 Description of parameters at the DMCC-SAP. 42
5.5 States for DMCC-SAP . 43
5.6 Services offered at the DMMM-SAP . 43
5.7 Description of primitives at the DMMM-SAP . 43
5.7.1 DMMM-REGISTRATION primitive . 44
5.7.2 DMMM-REPORT primitive . 44
5.8 Description of parameters at the DMMM-SAP . 44
6 DM-MS layer 3 protocol (for operation with a gateway) . 45
6.1 Introduction . 45
6.1.1 DMCC protocol states . 45
6.1.2 DMMM protocol states . 45
6.1.2.1 NOT-REGISTERED . 45
6.1.2.2 WAIT-REGISTRATION . 46
6.1.2.3 REGISTRATION-ACCEPTED . 46
6.1.2.4 REGISTRATION-REJECTED . 46
6.2 Circuit mode calls . 46
6.2.1 Procedures for outgoing call set-up through a gateway . 47
6.2.1.1 Outgoing call set-up . 47
6.2.1.2 Temporary group address . 49
6.2.1.3 Layer 3 addressing in DM-GSETUP PDU . 49
6.2.1.3.1 Called party address . 49
6.2.1.3.2 Area selection . 49
6.2.1.3.3 Calls to external subscribers . 49
6.2.1.3.4 Calling party address . 49
6.2.2 Procedures for incoming call set-up. 49
6.2.2.1 Incoming call set-up without presence check . 49
ETSI
4 Final draft ETSI EN 300 396-5 V1.3.0 (2011-08)
6.2.2.2 Incoming call set-up with presence check . 50
6.2.2.3 Transmitting Party Number Identification (TPNI) during incoming call set-up . 50
6.2.3 Usage of DM-OCCUPIED PDU . 50
6.2.3.1 Sending of DM-OCCUPIED PDU by master DM-MS . 50
6.2.3.2 Late entry by slave DM-MS . 50
6.2.4 Procedures during occupation . 51
6.2.4.1 Master DM-MS . 51
6.2.4.2 Slave DM-MS . 51
6.2.4.3 Transmitting Party Number Identification (TPNI) during occupation . 53
6.2.4.3.1 Master DM-MS . 53
6.2.4.3.2 Slave DM-MS . 53
6.2.5 Procedures during reservation. 53
6.2.5.1 Master DM-MS . 53
6.2.5.2 Slave DM-MS . 54
6.2.5.3 Pre-emption of short data sent as a transaction within a circuit mode call . 54
6.2.6 Procedures to set up a new call by pre-emption . 55
6.3 Short Data Service (SDS) procedures . 55
6.3.1 Sending short data . 56
6.3.1.1 Sending short data on a free channel . 56
6.3.1.1.1 Sending unacknowledged short data on a free channel . 56
6.3.1.1.2 Sending acknowledged short data on a free channel . 56
6.3.1.2 Sending short data by pre-emption . 56
6.3.1.3 Sending short data during circuit mode transmission . 56
6.3.1.4 Sending short data as a transaction within a circuit mode call . 57
6.3.1.4.1 Pre-emption to send short data as a transaction within a circuit mode call . 57
6.3.1.4.2 Changeover to send short data as a transaction within a circuit mode call . 57
6.3.1.4.3 Sending the short data as master of the circuit mode call . 57
6.3.2 Receiving short data. 57
6.3.2.1 Receiving unacknowledged short data . 57
6.3.2.2 Receiving acknowledged short data . 58
6.3.3 Additional addressing . 58
6.3.3.1 DM-MS sending short data . 58
6.3.3.2 DM-MS receiving short data . 58
6.3.4 Extended error protection . 58
6.3.5 SDS-TL service in DMO . 58
6.3.5.1 Service primitives at the DMTL-SAP . 58
6.3.5.2 DMTL-SDS primitives' parameters . 59
6.3.5.3 DMTL-SDS PDUs . 59
6.3.5.4 DMTL-SDS procedures . 59
6.4 Procedures for mobility management . 59
6.4.1 Solicited registration . 59
6.4.2 Unsolicited registration . 60
6.4.3 Cancellation of registration by gateway . 60
6.4.4 Other criteria for DMMM state change . 60
6.4.5 Action on entering state REGISTRATION-REJECTED. 61
6.4.6 Layer 3 addressing in DM-GREGISTER REQUEST PDU . 61
6.5 Usage of DMA-UNITDATA primitive . 61
6.5.1 Sending a DMCC PDU . 61
6.5.2 Sending a DMMM PDU . 61
6.5.3 Protocol control function for delivery of received message . 61
6.6 General procedures . 62
6.6.1 Usage restriction type and validity time . 62
7 DM-MS layer 2 service description (for operation with a gateway) . 62
7.1 Introduction . 62
7.2 Layer 2 architecture . 63
7.3 Service descriptions . 63
7.3.1 Services at the DMA-SAP . 63
7.3.1.1 Services provided to layer 3 . 63
7.3.1.2 Service primitives at the DMA-SAP . 63
7.3.1.2.1 DMA-REPORT primitive. 63
7.3.1.2.2 DMA-UNITDATA primitive . 63
ETSI
5 Final draft ETSI EN 300 396-5 V1.3.0 (2011-08)
7.3.2 Services at the DMC-SAP . 64
7.3.2.1 Services provided to layer 3 . 64
7.3.2.2 Service primitives at the DMC-SAP . 64
7.3.2.2.1 DMC-CONFIGURE primitive . 64
7.3.2.2.2 DMC-REPORT primitive . 64
7.3.3 Services at the DMD-SAP . 64
7.3.3.1 Services provided to the U-plane application . 64
7.3.3.2 Service primitives at the DMD-SAP . 64
7.4 Parameter listing . 65
8 DM-MS layer 2 protocol (for operation with a gateway) . 66
8.1 Introduction . 66
8.1.1 Functions of lower MAC . 66
8.1.2 Functions of upper MAC . 66
8.2 Interface between lower and upper MAC . 66
8.2.1 Logical channels defined at the DMV-SAP . 66
8.2.2 Service primitives at the DMV-SAP . 66
8.2.3 PDU mapping of the logical channels at the DMV-SAP . 66
8.2.4 Scrambling mechanism . 67
8.2.5 PDU error detection . 67
8.2.6 Modes of operation . 67
8.3 Basic capabilities of the physical layer. 68
8.3.1 DM-MS capabilitie s . 68
8.3.1.1 DM only and dual mode capable MS operation . 68
8.3.1.2 Dual watch capable MS operation . 68
8.4 Usage of DM channel with gateway. 68
8.4.1 Definition of DM channel . 69
8.4.1.1 DM channel arrangement . 69
8.4.1.1.1 DM channel arrangement for operation with a DM-GATE . 69
8.4.1.1.2 DM channel arrangement for operation with a type 1A DM-REP/GATE . 69
8.4.1.1.3 DM channel arrangement for operation with a type 1B DM-REP/GATE . 69
8.4.1.2 DM channel operation . 70
8.4.2 DM-MAC states . 70
8.4.2.1 DM-MAC state definitions . 71
8.4.2.2 DM-MS channel surveillance procedures . 72
8.4.2.2.1 Initial determination of DM channel state . 72
8.4.2.2.1.1 Initial determination of state of carrier. 72
8.4.2.2.1.2 Determination of state of one DM channel when other DM channel is busy . 73
8.4.2.2.2 Fast call set-up surveillance in idle mode . 73
8.4.2.2.2.1 Fast call set-up surveillance when idle on a free carrier . 73
8.4.2.2.2.2 Fast call set-up surveillance when idle on a carrier that is not free . 74
8.4.2.2.3 DM-MS channel surveillance at call set-up (circuit mode call or short data message) . 74
8.4.2.2.4 DM-MS channel surveillance for registration outside the registration phase . 74
8.4.2.3 Master DM-MS channel maintenance procedures during a call transaction . 75
8.4.2.4 Slave DM-MS channel maintenance procedures during a call . 76
8.4.2.4.1 Slave MS channel maintenance during call transaction . 76
8.4.2.4.2 Slave MS signal quality measurement during call transaction . 76
8.4.2.4.3 Slave MS channel maintenance during reservation . 76
8.4.3 Criteria for changing DM-MAC states . 76
8.4.3.1 Criteria for changing DM-MAC state for master DM-MS . 76
8.4.3.2 Criteria for changing DM-MAC state for slave DM-MS . 76
8.4.3.3 Criteria for changing DM-MAC state for idle DM-MS . 77
8.4.4 DM-MS channel monitoring procedures . 78
8.4.4.1 DM channel when setting up a circuit mode call through a gateway . 78
8.4.4.2 DM channel when receiving a circuit mode call set-up from a gateway . 79
8.4.4.3 DM channel in occupation during a circuit mode call. 79
8.4.4.4 DM channel in reservation during a circuit mode call . 79
8.4.4.5 DM channel in occupation during an SDS call . 79
8.4.4.6 DM channel during pre-emption signalling . 80
8.4.4.7 DM channel during registration phase . 80
8.4.4.8 DM channel in occupation for an unsolicited registration . 80
8.4.5 Transmission of layer 3 messages by DM-MAC . 81
ETSI
6 Final draft ETSI EN 300 396-5 V1.3.0 (2011-08)
8.4.5.1 Transmission of C-plane messages by DM-MAC. 81
8.4.5.1.1 Transmitting DM-SETUP. 81
8.4.5.1.2 Transmitting DM-SETUP PRES . 81
8.4.5.1.3 Transmitting DM-CONNECT . 81
8.4.5.1.4 Transmitting DM-DISCONNECT. 81
8.4.5.1.5 Transmitting DM-CONNECT ACK. 81
8.4.5.1.6 Transmitting DM-RELEASE . 82
8.4.5.1.7 Transmitting DM-OCCUPIED . 82
8.4.5.1.8 Transmitting DM-TX CEASED . 82
8.4.5.1.9 Transmitting DM-TX REQUEST. 82
8.4.5.1.10 Transmitting response to DM-TX REQUEST. 82
8.4.5.1.11 Transmitting DM-PREEMPT . 83
8.4.5.1.12 Transmitting response to DM-PREEMPT . 83
8.4.5.1.13 Transmitting DM-SDS UDATA and DM-SDS DATA . 83
8.4.5.1.14 Transmitting response to DM-SDS DATA . 83
8.4.5.1.15 Transmitting DM-INFO . 83
8.4.5.1.16 Transmitting DM-GSETUP . 84
8.4.5.1.17 Transmitting DM-GTX REQUEST . 84
8.4.5.1.18 Transmitting DM-GPREEMPT . 85
8.4.5.1.19 Transmitting DM-GREGISTER REQUEST . 85
8.4.5.1.20 Transmitting DM-GCANCEL ACK. 86
8.4.5.2 Transmission of U-plane messages by DM-MAC . 86
8.4.6 Transmission of layer 2 messages generated by DM-MAC . 86
8.4.6.1 Transmitting DM-RESERVED . 86
8.4.6.2 Transmitting DM-SDS OCCUPIED . 86
8.4.6.3 Transmitting DM-TIMING REQUEST . 86
8.4.6.4 Transmitting DM-TIMING ACK . 86
8.4.7 General DM-MAC procedures . 87
8.4.7.1 DM-MAC repeat transmissions . 87
8.4.7.2 DM-MAC frame countdown procedure . 87
8.4.7.3 Use of timers . 87
8.4.7.4 Linearization . 87
8.4.7.5 Fragmentation . 88
8.4.7.6 Fill bit indication . 88
8.4.7.7 Selection of pseudo address . 88
8.4.7.8 Slot flag indication . 88
8.4.7.9 Requests bitmap . 88
8.4.7.10 Dual watch operation . 88
8.4.7.11 Air interface encryption . 88
8.4.7.12 Channel A or B operation . 89
8.4.7.13 Sending short data as a transaction within a circuit mode call . 89
8.4.7.14 SDS and registration transaction time remaining . 89
8.4.7.14.1 SDS time remaining . 89
8.4.7.14.2 Registration transaction time remaining . 89
8.4.7.15 Timing change procedure . 89
8.4.7.16 Timing change at changeover or pre-emption . 89
8.4.7.17 Modification of slot/frame numbering by gateway . 90
8.4.7.18 Modification of channel timing by gateway . 90
8.5 MAC procedures for transfer of signalling messages . 90
8.5.1 Formation of MAC PDU . 90
8.5.2 Addressing . 91
8.5.2.1 Transmission of message . 91
8.5.2.1.1 Addressing in synchronization burst carrying gateway-specific message . 91
8.5.2.1.2 Addressing in synchronization burst carrying non-gateway-specific message . 91
8.5.2.1.3 Lifetime of pseudo SSI . 92
8.5.2.1.4 Additional elements in synchronization burst . 93
8.5.2.1.5 Addressing in normal burst. 93
8.5.2.2 Reception of message . 93
8.5.2.3 Usage of MNI . 94
8.5.3 Use of air interface encryption . 94
8.5.4 Fragmentation and reconstruction . 95
8.5.4.1 Fragmentation by a DM-MS . 95
ETSI
7 Final draft ETSI EN 300 396-5 V1.3.0 (2011-08)
8.5.4.2 Reconstruction by a DM-MS . 96
8.5.5 Fill bit addition and deletion . 97
8.5.6 Transmission and reception of messages by layer 2 unacknowledged service . 97
8.5.6.1 Transmission of message . 98
8.5.6.2 Reception of message . 99
8.5.7 Random access protocol during occupation and reservation periods . 101
8.5.7.1 Introduction . 101
8.5.7.2 Procedures for master DM-MS . 101
8.5.7.2.1 Indicating frames available for requests . 102
8.5.7.2.2 Monitoring frames available for requests . 102
8.5.7.2.3 Response to pre-emption request . 102
8.5.7.2.4 Response to timing change request. 103
8.5.7.2.5 Response to DM-GRELEASE message . 103
8.5.7.3 Procedures for requesting DM-MS . 103
8.5.8 Procedures for sending messages during registration phase . 105
8.5.8.1 Procedures for registering DM-MS during registration phase . 105
8.5.8.1.1 Preparing for registration access . 105
8.5.8.1.2 First transmission of solicited registration request . 105
8.5.8.1.3 Valid access slots . 105
8.5.8.1.4 Waiting for response . 105
8.5.8.1.5 Subsequent transmission of request . 105
8.5.8.1.6 Abandoning registration access attempt . 106
8.5.8.2 Procedures for pre-empting DM-MS during registration phase . 106
8.5.8.2.1 Preparing for random access . 106
8.5.8.2.2 First transmission of pre-emption request . 106
8.5.8.2.3 Valid slots for pre-emption . 106
8.5.8.2.4 Waiting for response . 106
8.5.8.2.5 Subsequent transmission of request . 107
8.5.8.2.6 Abandoning random access attempt . 107
8.6 MAC procedures in traffic mode . 107
8.6.1 Introduction. 107
8.6.2 Criteria for transmission and reception of traffic . 108
8.6.3 Change of U-plane mode . 108
8.6.3.1 Call set-up by DM-MS . 108
8.6.3.2 Incoming call set-up . 108
8.6.3.2.1 Incoming call set-up without presence check . 108
8.6.3.2.2 Incoming call set-up with presence check . 109
8.6.3.3 Late entry . 109
8.6.3.4 End of traffic transmission . 109
8.6.3.4.1 Master DM-MS . 109
8.6.3.4.2 Slave DM-MS . 109
8.6.4 Exchange of information at the DMD-SAP . 109
8.6.5 Stealing from circuit mode capacity . 109
9 Gateway layer 3 call control procedures . 110
9.1 Introduction . 110
9.2 Gateway call control states . 110
9.2.1 Gateway TMO call control states . 110
9.2.1.1 IDLE .
...

European Standard
Terrestrial Trunked Radio (TETRA);
Technical requirements for Direct Mode Operation (DMO);
Part 5: Gateway air interface
2 ETSI EN 300 396-5 V1.3.1 (2011-12)

Reference
REN/TETRA-08195
Keywords
air interface, gateway, protocol, radio, TETRA
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2011.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
3 ETSI EN 300 396-5 V1.3.1 (2011-12)
Contents
Intellectual Property Rights . 15
Foreword . 15
1 Scope . 16
2 References . 16
2.1 Normative references . 16
2.2 Informative references . 17
3 Definitions and abbreviations . 17
3.1 Definitions . 17
3.2 Abbreviations . 21
4 Overview of protocol. . 22
4.1 General . 22
4.2 The DM channel . 24
4.3 DM call procedures for operation with a gateway . 25
4.3.1 Constraints on the frame structure . 26
4.3.2 Setting up a call through a DM-GATE . 27
4.3.2.1 Group call from TMO to DM-MS via a DM-GATE . 27
4.3.2.2 Group call from DM-MS via a DM-GATE . 29
4.3.2.3 Individual call from TM-MS to DM-MS via a DM-GATE . 31
4.3.2.4 Individual call from DM-MS to TM-MS via a DM-GATE . 34
4.3.3 Changeover in a call via a DM-GATE. 36
4.3.4 Pre-emption of a direct mode call through a DM-GATE . 38
4.3.5 Short Data Service through a gateway . 39
4.3.6 Group call from DM-MS via DM-REP/GATE . 40
5 DM-MS layer 3 service description (for operation with a gateway) . 41
5.1 Introduction . 41
5.2 Services offered at the DMCC-SAP . 41
5.3 Description of primitives at the DMCC-SAP . 41
5.4 Description of parameters at the DMCC-SAP. 42
5.5 States for DMCC-SAP . 43
5.6 Services offered at the DMMM-SAP . 43
5.7 Description of primitives at the DMMM-SAP . 43
5.7.1 DMMM-REGISTRATION primitive . 44
5.7.2 DMMM-REPORT primitive . 44
5.8 Description of parameters at the DMMM-SAP . 44
6 DM-MS layer 3 protocol (for operation with a gateway) . 45
6.1 Introduction . 45
6.1.1 DMCC protocol states . 45
6.1.2 DMMM protocol states . 45
6.1.2.1 NOT-REGISTERED . 45
6.1.2.2 WAIT-REGISTRATION . 46
6.1.2.3 REGISTRATION-ACCEPTED . 46
6.1.2.4 REGISTRATION-REJECTED . 46
6.2 Circuit mode calls . 46
6.2.1 Procedures for outgoing call set-up through a gateway . 47
6.2.1.1 Outgoing call set-up . 47
6.2.1.2 Temporary group address . 49
6.2.1.3 Layer 3 addressing in DM-GSETUP PDU . 49
6.2.1.3.1 Called party address . 49
6.2.1.3.2 Area selection . 49
6.2.1.3.3 Calls to external subscribers . 49
6.2.1.3.4 Calling party address . 49
6.2.2 Procedures for incoming call set-up. 49
6.2.2.1 Incoming call set-up without presence check . 49
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4 ETSI EN 300 396-5 V1.3.1 (2011-12)
6.2.2.2 Incoming call set-up with presence check . 50
6.2.2.3 Transmitting Party Number Identification (TPNI) during incoming call set-up . 50
6.2.3 Usage of DM-OCCUPIED PDU . 50
6.2.3.1 Sending of DM-OCCUPIED PDU by master DM-MS . 50
6.2.3.2 Late entry by slave DM-MS . 50
6.2.4 Procedures during occupation . 51
6.2.4.1 Master DM-MS . 51
6.2.4.2 Slave DM-MS . 51
6.2.4.3 Transmitting Party Number Identification (TPNI) during occupation . 53
6.2.4.3.1 Master DM-MS . 53
6.2.4.3.2 Slave DM-MS . 53
6.2.5 Procedures during reservation. 53
6.2.5.1 Master DM-MS . 53
6.2.5.2 Slave DM-MS . 54
6.2.5.3 Pre-emption of short data sent as a transaction within a circuit mode call . 54
6.2.6 Procedures to set up a new call by pre-emption . 55
6.3 Short Data Service (SDS) procedures . 55
6.3.1 Sending short data . 56
6.3.1.1 Sending short data on a free channel . 56
6.3.1.1.1 Sending unacknowledged short data on a free channel . 56
6.3.1.1.2 Sending acknowledged short data on a free channel . 56
6.3.1.2 Sending short data by pre-emption . 56
6.3.1.3 Sending short data during circuit mode transmission . 56
6.3.1.4 Sending short data as a transaction within a circuit mode call . 57
6.3.1.4.1 Pre-emption to send short data as a transaction within a circuit mode call . 57
6.3.1.4.2 Changeover to send short data as a transaction within a circuit mode call . 57
6.3.1.4.3 Sending the short data as master of the circuit mode call . 57
6.3.2 Receiving short data. 57
6.3.2.1 Receiving unacknowledged short data . 57
6.3.2.2 Receiving acknowledged short data . 58
6.3.3 Additional addressing . 58
6.3.3.1 DM-MS sending short data . 58
6.3.3.2 DM-MS receiving short data . 58
6.3.4 Extended error protection . 58
6.3.5 SDS-TL service in DMO . 58
6.3.5.1 Service primitives at the DMTL-SAP . 58
6.3.5.2 DMTL-SDS primitives' parameters . 59
6.3.5.3 DMTL-SDS PDUs . 59
6.3.5.4 DMTL-SDS procedures . 59
6.4 Procedures for mobility management . 59
6.4.1 Solicited registration . 59
6.4.2 Unsolicited registration . 60
6.4.3 Cancellation of registration by gateway . 60
6.4.4 Other criteria for DMMM state change . 60
6.4.5 Action on entering state REGISTRATION-REJECTED. 61
6.4.6 Layer 3 addressing in DM-GREGISTER REQUEST PDU . 61
6.5 Usage of DMA-UNITDATA primitive . 61
6.5.1 Sending a DMCC PDU . 61
6.5.2 Sending a DMMM PDU . 61
6.5.3 Protocol control function for delivery of received message . 61
6.6 General procedures . 62
6.6.1 Usage restriction type and validity time . 62
7 DM-MS layer 2 service description (for operation with a gateway) . 62
7.1 Introduction . 62
7.2 Layer 2 architecture . 63
7.3 Service descriptions . 63
7.3.1 Services at the DMA-SAP . 63
7.3.1.1 Services provided to layer 3 . 63
7.3.1.2 Service primitives at the DMA-SAP . 63
7.3.1.2.1 DMA-REPORT primitive. 63
7.3.1.2.2 DMA-UNITDATA primitive . 63
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5 ETSI EN 300 396-5 V1.3.1 (2011-12)
7.3.2 Services at the DMC-SAP . 64
7.3.2.1 Services provided to layer 3 . 64
7.3.2.2 Service primitives at the DMC-SAP . 64
7.3.2.2.1 DMC-CONFIGURE primitive . 64
7.3.2.2.2 DMC-REPORT primitive . 64
7.3.3 Services at the DMD-SAP . 64
7.3.3.1 Services provided to the U-plane application . 64
7.3.3.2 Service primitives at the DMD-SAP . 64
7.4 Parameter listing . 65
8 DM-MS layer 2 protocol (for operation with a gateway) . 66
8.1 Introduction . 66
8.1.1 Functions of lower MAC . 66
8.1.2 Functions of upper MAC . 66
8.2 Interface between lower and upper MAC . 66
8.2.1 Logical channels defined at the DMV-SAP . 66
8.2.2 Service primitives at the DMV-SAP . 66
8.2.3 PDU mapping of the logical channels at the DMV-SAP . 66
8.2.4 Scrambling mechanism . 67
8.2.5 PDU error detection . 67
8.2.6 Modes of operation . 67
8.3 Basic capabilities of the physical layer. 68
8.3.1 DM-MS capabilitie s . 68
8.3.1.1 DM only and dual mode capable MS operation . 68
8.3.1.2 Dual watch capable MS operation . 68
8.4 Usage of DM channel with gateway. 68
8.4.1 Definition of DM channel . 69
8.4.1.1 DM channel arrangement . 69
8.4.1.1.1 DM channel arrangement for operation with a DM-GATE . 69
8.4.1.1.2 DM channel arrangement for operation with a type 1A DM-REP/GATE . 69
8.4.1.1.3 DM channel arrangement for operation with a type 1B DM-REP/GATE . 69
8.4.1.2 DM channel operation . 70
8.4.2 DM-MAC states . 70
8.4.2.1 DM-MAC state definitions . 71
8.4.2.2 DM-MS channel surveillance procedures . 72
8.4.2.2.1 Initial determination of DM channel state . 72
8.4.2.2.1.1 Initial determination of state of carrier. 72
8.4.2.2.1.2 Determination of state of one DM channel when other DM channel is busy . 73
8.4.2.2.2 Fast call set-up surveillance in idle mode . 73
8.4.2.2.2.1 Fast call set-up surveillance when idle on a free carrier . 73
8.4.2.2.2.2 Fast call set-up surveillance when idle on a carrier that is not free . 74
8.4.2.2.3 DM-MS channel surveillance at call set-up (circuit mode call or short data message) . 74
8.4.2.2.4 DM-MS channel surveillance for registration outside the registration phase . 74
8.4.2.3 Master DM-MS channel maintenance procedures during a call transaction . 75
8.4.2.4 Slave DM-MS channel maintenance procedures during a call . 76
8.4.2.4.1 Slave MS channel maintenance during call transaction . 76
8.4.2.4.2 Slave MS signal quality measurement during call transaction . 76
8.4.2.4.3 Slave MS channel maintenance during reservation . 76
8.4.3 Criteria for changing DM-MAC states . 76
8.4.3.1 Criteria for changing DM-MAC state for master DM-MS . 76
8.4.3.2 Criteria for changing DM-MAC state for slave DM-MS . 76
8.4.3.3 Criteria for changing DM-MAC state for idle DM-MS . 77
8.4.4 DM-MS channel monitoring procedures . 78
8.4.4.1 DM channel when setting up a circuit mode call through a gateway . 78
8.4.4.2 DM channel when receiving a circuit mode call set-up from a gateway . 79
8.4.4.3 DM channel in occupation during a circuit mode call. 79
8.4.4.4 DM channel in reservation during a circuit mode call . 79
8.4.4.5 DM channel in occupation during an SDS call . 79
8.4.4.6 DM channel during pre-emption signalling . 80
8.4.4.7 DM channel during registration phase . 80
8.4.4.8 DM channel in occupation for an unsolicited registration . 80
8.4.5 Transmission of layer 3 messages by DM-MAC . 81
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6 ETSI EN 300 396-5 V1.3.1 (2011-12)
8.4.5.1 Transmission of C-plane messages by DM-MAC. 81
8.4.5.1.1 Transmitting DM-SETUP. 81
8.4.5.1.2 Transmitting DM-SETUP PRES . 81
8.4.5.1.3 Transmitting DM-CONNECT . 81
8.4.5.1.4 Transmitting DM-DISCONNECT. 81
8.4.5.1.5 Transmitting DM-CONNECT ACK. 81
8.4.5.1.6 Transmitting DM-RELEASE . 82
8.4.5.1.7 Transmitting DM-OCCUPIED . 82
8.4.5.1.8 Transmitting DM-TX CEASED . 82
8.4.5.1.9 Transmitting DM-TX REQUEST. 82
8.4.5.1.10 Transmitting response to DM-TX REQUEST. 82
8.4.5.1.11 Transmitting DM-PREEMPT . 83
8.4.5.1.12 Transmitting response to DM-PREEMPT . 83
8.4.5.1.13 Transmitting DM-SDS UDATA and DM-SDS DATA . 83
8.4.5.1.14 Transmitting response to DM-SDS DATA . 83
8.4.5.1.15 Transmitting DM-INFO . 83
8.4.5.1.16 Transmitting DM-GSETUP . 84
8.4.5.1.17 Transmitting DM-GTX REQUEST . 84
8.4.5.1.18 Transmitting DM-GPREEMPT . 85
8.4.5.1.19 Transmitting DM-GREGISTER REQUEST . 85
8.4.5.1.20 Transmitting DM-GCANCEL ACK. 86
8.4.5.2 Transmission of U-plane messages by DM-MAC . 86
8.4.6 Transmission of layer 2 messages generated by DM-MAC . 86
8.4.6.1 Transmitting DM-RESERVED . 86
8.4.6.2 Transmitting DM-SDS OCCUPIED . 86
8.4.6.3 Transmitting DM-TIMING REQUEST . 86
8.4.6.4 Transmitting DM-TIMING ACK . 86
8.4.7 General DM-MAC procedures . 87
8.4.7.1 DM-MAC repeat transmissions . 87
8.4.7.2 DM-MAC frame countdown procedure . 87
8.4.7.3 Use of timers . 87
8.4.7.4 Linearization . 87
8.4.7.5 Fragmentation . 88
8.4.7.6 Fill bit indication . 88
8.4.7.7 Selection of pseudo address . 88
8.4.7.8 Slot flag indication . 88
8.4.7.9 Requests bitmap . 88
8.4.7.10 Dual watch operation . 88
8.4.7.11 Air interface encryption . 88
8.4.7.12 Channel A or B operation . 89
8.4.7.13 Sending short data as a transaction within a circuit mode call . 89
8.4.7.14 SDS and registration transaction time remaining . 89
8.4.7.14.1 SDS time remaining . 89
8.4.7.14.2 Registration transaction time remaining . 89
8.4.7.15 Timing change procedure . 89
8.4.7.16 Timing change at changeover or pre-emption . 89
8.4.7.17 Modification of slot/frame numbering by gateway . 90
8.4.7.18 Modification of channel timing by gateway . 90
8.5 MAC procedures for transfer of signalling messages . 90
8.5.1 Formation of MAC PDU . 90
8.5.2 Addressing . 91
8.5.2.1 Transmission of message . 91
8.5.2.1.1 Addressing in synchronization burst carrying gateway-specific message . 91
8.5.2.1.2 Addressing in synchronization burst carrying non-gateway-specific message . 91
8.5.2.1.3 Lifetime of pseudo SSI . 92
8.5.2.1.4 Additional elements in synchronization burst . 93
8.5.2.1.5 Addressing in normal burst. 93
8.5.2.2 Reception of message . 93
8.5.2.3 Usage of MNI . 94
8.5.3 Use of air interface encryption . 94
8.5.4 Fragmentation and reconstruction . 95
8.5.4.1 Fragmentation by a DM-MS . 95
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7 ETSI EN 300 396-5 V1.3.1 (2011-12)
8.5.4.2 Reconstruction by a DM-MS . 96
8.5.5 Fill bit addition and deletion . 97
8.5.6 Transmission and reception of messages by layer 2 unacknowledged service . 97
8.5.6.1 Transmission of message . 98
8.5.6.2 Reception of message . 99
8.5.7 Random access protocol during occupation and reservation periods . 101
8.5.7.1 Introduction . 101
8.5.7.2 Procedures for master DM-MS . 101
8.5.7.2.1 Indicating frames available for requests . 102
8.5.7.2.2 Monitoring frames available for requests . 102
8.5.7.2.3 Response to pre-emption request . 102
8.5.7.2.4 Response to timing change request. 103
8.5.7.2.5 Response to DM-GRELEASE message . 103
8.5.7.3 Procedures for requesting DM-MS . 103
8.5.8 Procedures for sending messages during registration phase . 105
8.5.8.1 Procedures for registering DM-MS during registration phase . 105
8.5.8.1.1 Preparing for registration access . 105
8.5.8.1.2 First transmission of solicited registration request . 105
8.5.8.1.3 Valid access slots . 105
8.5.8.1.4 Waiting for response . 105
8.5.8.1.5 Subsequent transmission of request . 105
8.5.8.1.6 Abandoning registration access attempt . 106
8.5.8.2 Procedures for pre-empting DM-MS during registration phase . 106
8.5.8.2.1 Preparing for random access . 106
8.5.8.2.2 First transmission of pre-emption request . 106
8.5.8.2.3 Valid slots for pre-emption . 106
8.5.8.2.4 Waiting for response . 106
8.5.8.2.5 Subsequent transmission of request . 107
8.5.8.2.6 Abandoning random access attempt . 107
8.6 MAC procedures in traffic mode . 107
8.6.1 Introduction. 107
8.6.2 Criteria for transmission and reception of traffic . 108
8.6.3 Change of U-plane mode . 108
8.6.3.1 Call set-up by DM-MS . 108
8.6.3.2 Incoming call set-up . 108
8.6.3.2.1 Incoming call set-up without presence check . 108
8.6.3.2.2 Incoming call set-up with presence check . 109
8.6.3.3 Late entry . 109
8.6.3.4 End of traffic transmission . 109
8.6.3.4.1 Master DM-MS . 109
8.6.3.4.2 Slave DM-MS . 109
8.6.4 Exchange of information at the DMD-SAP . 109
8.6.5 Stealing from circuit mode capacity . 109
9 Gateway layer 3 call control procedures . 110
9.1 Introduction . 110
9.2 Gateway call control states . 110
9.2.1 Gateway TMO call control states . 110
9.2.1.1 IDLE . 110
9.2.1.2 MO
...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.QDþLQTerrestrial Trunked Radio (TETRA) - Technical requirements for Direct Mode Operation (DMO) - Part 5: Gateway air interface33.070.10Prizemni snopovni radio (TETRA)Terrestrial Trunked Radio (TETRA)ICS:Ta slovenski standard je istoveten z:EN 300 396-5 Version 1.3.1SIST EN 300 396-5 V1.3.1:2012en01-februar-2012SIST EN 300 396-5 V1.3.1:2012SLOVENSKI
STANDARD
European Standard SIST EN 300 396-5 V1.3.1:2012

ETSI ETSI EN 300 396-5 V1.3.1 (2011-12) 2
Reference REN/TETRA-08195 Keywords air interface, gateway, protocol, radio, TETRA ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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© European Telecommunications Standards Institute 2011. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. SIST EN 300 396-5 V1.3.1:2012

ETSI ETSI EN 300 396-5 V1.3.1 (2011-12) 3 Contents Intellectual Property Rights . 15 Foreword . 15 1 Scope . 16 2 References . 16 2.1 Normative references . 16 2.2 Informative references . 17 3 Definitions and abbreviations . 17 3.1 Definitions . 17 3.2 Abbreviations . 21 4 Overview of protocol. 22 4.1 General . 22 4.2 The DM channel . 24 4.3 DM call procedures for operation with a gateway . 25 4.3.1 Constraints on the frame structure . 26 4.3.2 Setting up a call through a DM-GATE . 27 4.3.2.1 Group call from TMO to DM-MS via a DM-GATE . 27 4.3.2.2 Group call from DM-MS via a DM-GATE . 29 4.3.2.3 Individual call from TM-MS to DM-MS via a DM-GATE . 31 4.3.2.4 Individual call from DM-MS to TM-MS via a DM-GATE . 34 4.3.3 Changeover in a call via a DM-GATE. 36 4.3.4 Pre-emption of a direct mode call through a DM-GATE . 38 4.3.5 Short Data Service through a gateway . 39 4.3.6 Group call from DM-MS via DM-REP/GATE . 40 5 DM-MS layer 3 service description (for operation with a gateway) . 41 5.1 Introduction . 41 5.2 Services offered at the DMCC-SAP . 41 5.3 Description of primitives at the DMCC-SAP . 41 5.4 Description of parameters at the DMCC-SAP. 42 5.5 States for DMCC-SAP . 43 5.6 Services offered at the DMMM-SAP . 43 5.7 Description of primitives at the DMMM-SAP . 43 5.7.1 DMMM-REGISTRATION primitive . 44 5.7.2 DMMM-REPORT primitive . 44 5.8 Description of parameters at the DMMM-SAP . 44 6 DM-MS layer 3 protocol (for operation with a gateway) . 45 6.1 Introduction . 45 6.1.1 DMCC protocol states . 45 6.1.2 DMMM protocol states . 45 6.1.2.1 NOT-REGISTERED . 45 6.1.2.2 WAIT-REGISTRATION . 46 6.1.2.3 REGISTRATION-ACCEPTED . 46 6.1.2.4 REGISTRATION-REJECTED . 46 6.2 Circuit mode calls . 46 6.2.1 Procedures for outgoing call set-up through a gateway . 47 6.2.1.1 Outgoing call set-up . 47 6.2.1.2 Temporary group address . 49 6.2.1.3 Layer 3 addressing in DM-GSETUP PDU . 49 6.2.1.3.1 Called party address . 49 6.2.1.3.2 Area selection . 49 6.2.1.3.3 Calls to external subscribers . 49 6.2.1.3.4 Calling party address . 49 6.2.2 Procedures for incoming call set-up. 49 6.2.2.1 Incoming call set-up without presence check . 49 SIST EN 300 396-5 V1.3.1:2012

ETSI ETSI EN 300 396-5 V1.3.1 (2011-12) 4 6.2.2.2 Incoming call set-up with presence check . 50 6.2.2.3 Transmitting Party Number Identification (TPNI) during incoming call set-up . 50 6.2.3 Usage of DM-OCCUPIED PDU . 50 6.2.3.1 Sending of DM-OCCUPIED PDU by master DM-MS . 50 6.2.3.2 Late entry by slave DM-MS . 50 6.2.4 Procedures during occupation . 51 6.2.4.1 Master DM-MS . 51 6.2.4.2 Slave DM-MS . 51 6.2.4.3 Transmitting Party Number Identification (TPNI) during occupation . 53 6.2.4.3.1 Master DM-MS . 53 6.2.4.3.2 Slave DM-MS . 53 6.2.5 Procedures during reservation. 53 6.2.5.1 Master DM-MS . 53 6.2.5.2 Slave DM-MS . 54 6.2.5.3 Pre-emption of short data sent as a transaction within a circuit mode call . 54 6.2.6 Procedures to set up a new call by pre-emption . 55 6.3 Short Data Service (SDS) procedures . 55 6.3.1 Sending short data . 56 6.3.1.1 Sending short data on a free channel . 56 6.3.1.1.1 Sending unacknowledged short data on a free channel . 56 6.3.1.1.2 Sending acknowledged short data on a free channel . 56 6.3.1.2 Sending short data by pre-emption . 56 6.3.1.3 Sending short data during circuit mode transmission . 56 6.3.1.4 Sending short data as a transaction within a circuit mode call . 57 6.3.1.4.1 Pre-emption to send short data as a transaction within a circuit mode call . 57 6.3.1.4.2 Changeover to send short data as a transaction within a circuit mode call . 57 6.3.1.4.3 Sending the short data as master of the circuit mode call . 57 6.3.2 Receiving short data. 57 6.3.2.1 Receiving unacknowledged short data . 57 6.3.2.2 Receiving acknowledged short data . 58 6.3.3 Additional addressing . 58 6.3.3.1 DM-MS sending short data . 58 6.3.3.2 DM-MS receiving short data . 58 6.3.4 Extended error protection . 58 6.3.5 SDS-TL service in DMO . 58 6.3.5.1 Service primitives at the DMTL-SAP . 58 6.3.5.2 DMTL-SDS primitives' parameters . 59 6.3.5.3 DMTL-SDS PDUs . 59 6.3.5.4 DMTL-SDS procedures . 59 6.4 Procedures for mobility management . 59 6.4.1 Solicited registration . 59 6.4.2 Unsolicited registration . 60 6.4.3 Cancellation of registration by gateway . 60 6.4.4 Other criteria for DMMM state change . 60 6.4.5 Action on entering state REGISTRATION-REJECTED. 61 6.4.6 Layer 3 addressing in DM-GREGISTER REQUEST PDU . 61 6.5 Usage of DMA-UNITDATA primitive . 61 6.5.1 Sending a DMCC PDU . 61 6.5.2 Sending a DMMM PDU . 61 6.5.3 Protocol control function for delivery of received message . 61 6.6 General procedures . 62 6.6.1 Usage restriction type and validity time . 62 7 DM-MS layer 2 service description (for operation with a gateway) . 62 7.1 Introduction . 62 7.2 Layer 2 architecture . 63 7.3 Service descriptions . 63 7.3.1 Services at the DMA-SAP . 63 7.3.1.1 Services provided to layer 3 . 63 7.3.1.2 Service primitives at the DMA-SAP . 63 7.3.1.2.1 DMA-REPORT primitive. 63 7.3.1.2.2 DMA-UNITDATA primitive . 63 SIST EN 300 396-5 V1.3.1:2012

ETSI ETSI EN 300 396-5 V1.3.1 (2011-12) 5 7.3.2 Services at the DMC-SAP . 64 7.3.2.1 Services provided to layer 3 . 64 7.3.2.2 Service primitives at the DMC-SAP . 64 7.3.2.2.1 DMC-CONFIGURE primitive . 64 7.3.2.2.2 DMC-REPORT primitive . 64 7.3.3 Services at the DMD-SAP . 64 7.3.3.1 Services provided to the U-plane application . 64 7.3.3.2 Service primitives at the DMD-SAP . 64 7.4 Parameter listing . 65 8 DM-MS layer 2 protocol (for operation with a gateway) . 66 8.1 Introduction . 66 8.1.1 Functions of lower MAC . 66 8.1.2 Functions of upper MAC . 66 8.2 Interface between lower and upper MAC . 66 8.2.1 Logical channels defined at the DMV-SAP . 66 8.2.2 Service primitives at the DMV-SAP . 66 8.2.3 PDU mapping of the logical channels at the DMV-SAP . 66 8.2.4 Scrambling mechanism . 67 8.2.5 PDU error detection . 67 8.2.6 Modes of operation . 67 8.3 Basic capabilities of the physical layer. 68 8.3.1 DM-MS capabilities . 68 8.3.1.1 DM only and dual mode capable MS operation . 68 8.3.1.2 Dual watch capable MS operation . 68 8.4 Usage of DM channel with gateway. 68 8.4.1 Definition of DM channel . 69 8.4.1.1 DM channel arrangement . 69 8.4.1.1.1 DM channel arrangement for operation with a DM-GATE . 69 8.4.1.1.2 DM channel arrangement for operation with a type 1A DM-REP/GATE . 69 8.4.1.1.3 DM channel arrangement for operation with a type 1B DM-REP/GATE . 69 8.4.1.2 DM channel operation . 70 8.4.2 DM-MAC states . 70 8.4.2.1 DM-MAC state definitions . 71 8.4.2.2 DM-MS channel surveillance procedures . 72 8.4.2.2.1 Initial determination of DM channel state . 72 8.4.2.2.1.1 Initial determination of state of carrier. 72 8.4.2.2.1.2 Determination of state of one DM channel when other DM channel is busy . 73 8.4.2.2.2 Fast call set-up surveillance in idle mode . 73 8.4.2.2.2.1 Fast call set-up surveillance when idle on a free carrier . 73 8.4.2.2.2.2 Fast call set-up surveillance when idle on a carrier that is not free . 74 8.4.2.2.3 DM-MS channel surveillance at call set-up (circuit mode call or short data message) . 74 8.4.2.2.4 DM-MS channel surveillance for registration outside the registration phase . 74 8.4.2.3 Master DM-MS channel maintenance procedures during a call transaction . 75 8.4.2.4 Slave DM-MS channel maintenance procedures during a call . 76 8.4.2.4.1 Slave MS channel maintenance during call transaction . 76 8.4.2.4.2 Slave MS signal quality measurement during call transaction . 76 8.4.2.4.3 Slave MS channel maintenance during reservation . 76 8.4.3 Criteria for changing DM-MAC states . 76 8.4.3.1 Criteria for changing DM-MAC state for master DM-MS . 76 8.4.3.2 Criteria for changing DM-MAC state for slave DM-MS . 76 8.4.3.3 Criteria for changing DM-MAC state for idle DM-MS . 77 8.4.4 DM-MS channel monitoring procedures . 78 8.4.4.1 DM channel when setting up a circuit mode call through a gateway . 78 8.4.4.2 DM channel when receiving a circuit mode call set-up from a gateway . 79 8.4.4.3 DM channel in occupation during a circuit mode call. 79 8.4.4.4 DM channel in reservation during a circuit mode call . 79 8.4.4.5 DM channel in occupation during an SDS call . 79 8.4.4.6 DM channel during pre-emption signalling . 80 8.4.4.7 DM channel during registration phase . 80 8.4.4.8 DM channel in occupation for an unsolicited registration . 80 8.4.5 Transmission of layer 3 messages by DM-MAC . 81 SIST EN 300 396-5 V1.3.1:2012

ETSI ETSI EN 300 396-5 V1.3.1 (2011-12) 6 8.4.5.1 Transmission of C-plane messages by DM-MAC. 81 8.4.5.1.1 Transmitting DM-SETUP. 81 8.4.5.1.2 Transmitting DM-SETUP PRES . 81 8.4.5.1.3 Transmitting DM-CONNECT . 81 8.4.5.1.4 Transmitting DM-DISCONNECT. 81 8.4.5.1.5 Transmitting DM-CONNECT ACK. 81 8.4.5.1.6 Transmitting DM-RELEASE . 82 8.4.5.1.7 Transmitting DM-OCCUPIED . 82 8.4.5.1.8 Transmitting DM-TX CEASED . 82 8.4.5.1.9 Transmitting DM-TX REQUEST. 82 8.4.5.1.10 Transmitting response to DM-TX REQUEST. 82 8.4.5.1.11 Transmitting DM-PREEMPT . 83 8.4.5.1.12 Transmitting response to DM-PREEMPT . 83 8.4.5.1.13 Transmitting DM-SDS UDATA and DM-SDS DATA . 83 8.4.5.1.14 Transmitting response to DM-SDS DATA . 83 8.4.5.1.15 Transmitting DM-INFO . 83 8.4.5.1.16 Transmitting DM-GSETUP . 84 8.4.5.1.17 Transmitting DM-GTX REQUEST . 84 8.4.5.1.18 Transmitting DM-GPREEMPT . 85 8.4.5.1.19 Transmitting DM-GREGISTER REQUEST . 85 8.4.5.1.20 Transmitting DM-GCANCEL ACK. 86 8.4.5.2 Transmission of U-plane messages by DM-MAC . 86 8.4.6 Transmission of layer 2 messages generated by DM-MAC . 86 8.4.6.1 Transmitting DM-RESERVED . 86 8.4.6.2 Transmitting DM-SDS OCCUPIED . 86 8.4.6.3 Transmitting DM-TIMING REQUEST . 86 8.4.6.4 Transmitting DM-TIMING ACK . 86 8.4.7 General DM-MAC procedures . 87 8.4.7.1 DM-MAC repeat transmissions . 87 8.4.7.2 DM-MAC frame countdown procedure . 87 8.4.7.3 Use of timers . 87 8.4.7.4 Linearization . 87 8.4.7.5 Fragmentation . 88 8.4.7.6 Fill bit indication . 88 8.4.7.7 Selection of pseudo address . 88 8.4.7.8 Slot flag indication . 88 8.4.7.9 Requests bitmap . 88 8.4.7.10 Dual watch operation . 88 8.4.7.11 Air interface encryption . 88 8.4.7.12 Channel A or B operation . 89 8.4.7.13 Sending short data as a transaction within a circuit mode call . 89 8.4.7.14 SDS and registration transaction time remaining . 89 8.4.7.14.1 SDS time remaining . 89 8.4.7.14.2 Registration transaction time remaining . 89 8.4.7.15 Timing change procedure . 89 8.4.7.16 Timing change at changeover or pre-emption . 89 8.4.7.17 Modification of slot/frame numbering by gateway . 90 8.4.7.18 Modification of channel timing by gateway . 90 8.5 MAC procedures for transfer of signalling messages . 90 8.5.1 Formation of MAC PDU . 90 8.5.2 Addressing . 91 8.5.2.1 Transmission of message . 91 8.5.2.1.1 Addressing in synchronization burst carrying gateway-specific message . 91 8.5.2.1.2 Addressing in synchronization burst carrying non-gateway-specific message . 91 8.5.2.1.3 Lifetime of pseudo SSI . 92 8.5.2.1.4 Additional elements in synchronization burst . 93 8.5.2.1.5 Addressing in normal burst. 93 8.5.2.2 Reception of message . 93 8.5.2.3 Usage of MNI . 94 8.5.3 Use of air interface encryption . 94 8.5.4 Fragmentation and reconstruction . 95 8.5.4.1 Fragmentation by a DM-MS . 95 SIST EN 300 396-5 V1.3.1:2012

ETSI ETSI EN 300 396-5 V1.3.1 (2011-12) 7 8.5.4.2 Reconstruction by a DM-MS . 96 8.5.5 Fill bit addition and deletion . 97 8.5.6 Transmission and reception of messages by layer 2 unacknowledged service . 97 8.5.6.1 Transmission of message . 98 8.5.6.2 Reception of message . 99 8.5.7 Random access protocol during occupation and reservation periods . 101 8.5.7.1 Introduction . 101 8.5.7.2 Procedures for master DM-MS . 101 8.5.7.2.1 Indicating frames available for requests . 102 8.5.7.2.2 Monitoring frames available for requests . 102 8.5.7.2.3 Response to pre-emption request . 102 8.5.7.2.4 Response to timing change request. 103 8.5.7.2.5 Response to DM-GRELEASE message . 103 8.5.7.3 Procedures for requesting DM-MS . 103 8.5.8 Procedures for sending messages during registration phase . 105 8.5.8.1 Procedures for registering DM-MS during registration phase . 105 8.5.8.1.1 Preparing for registration access . 105 8.5.8.1.2 First transmission of solicited registration request . 105 8.5.8.1.3 Valid access slots . 105 8.5.8.1.4 Waiting for response . 105 8.5.8.1.5 Subsequent transmission of request . 105 8.5.8.1.6 Abandoning registration access attempt . 106 8.5.8.2 Procedures for pre-empting DM-MS during registration phase . 106 8.5.8.2.1 Preparing for random access . 106 8.5.8.2.2 First transmission of pre-emption request . 106 8.5.8.2.3 Valid slots for pre-emption . 106 8.5.8.2.4 Waiting for response . 106 8.5.8.2.5 Subsequent transmission of request . 107 8.5.8.2.6 Abandoning random access attempt . 107 8.6 MAC procedures in traffic mode . 107 8.6.1 Introduction. 107 8.6.2 Criteria for transmission and reception of traffic . 108 8.6.3 Change of U-plane mode . 108 8.6.3.1 Call set-up by DM-MS . 108 8.6.3.2 Incoming call set-up . 108 8.6.3.2.1 Incoming call set-up without presence check . 108 8.6.3.2.2 Incoming call set-up with presence check . 109 8.6.3.3 Late entry . 109 8.6.3.4 End of traffic transmission . 109 8.6.3.4.1 Master DM-MS . 109 8.6.3.4.2 Slave DM-MS . 109 8.6.4 Exchange of information at the DMD-SAP . 109 8.6.5 Stealing from circuit mode capacity . 109 9 Gateway layer 3 call control procedures . 110 9.1 Introduction . 110 9.2 Gateway call control states . 110 9.2.1 Gateway TMO call control states . 110 9.2.1.1 IDLE . 110 9.2.1.2 MO-CALL-SETU
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