ETSI TS 102 361-3 V1.2.1 (2013-07)

ETSI TS 102 361-3 V1.2.1 (2013-07)






Technical Specification
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Digital Mobile Radio (DMR) Systems;
Part 3: DMR data protocol

---------------------- Page: 1 ----------------------
2 ETSI TS 102 361-3 V1.2.1 (2013-07)



Reference
RTS/ERM-TGDMR-312-3
Keywords
air interface, data, digital, PMR, protocol, radio
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

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

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

© European Telecommunications Standards Institute 2013.
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

---------------------- Page: 2 ----------------------
3 ETSI TS 102 361-3 V1.2.1 (2013-07)
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 and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 10
4 Overview . 11
4.1 Protocol architecture. 11
4.1.1 Air Interface Physical Layer (layer 1). 12
4.1.2 Air Interface Data Link Layer (layer 2) . 13
4.1.3 Air Interface Call Control Layer (layer 3) . 13
4.2 Overview of the DMR Packet Data Protocol (PDP) . 13
4.3 Feature interoperability . 14
5 Internet Protocol (IP) bearer service. 14
5.1 IP addressing . 15
5.1.1 DLL derived IP addressing . 15
5.1.2 DLL neutral IP addressing . 16
5.2 IP error messages. 16
5.3 Unconfirmed data DLL bearer service . 17
5.3.1 Unconfirmed IP Data Types/PDUs . 18
5.3.1.1 Rate ½ coded unconfirmed IP Data Types/PDUs . 18
5.3.1.2 Rate ¾ coded unconfirmed IP Data Types/PDUs . 18
5.3.1.3 Rate 1 coded unconfirmed IP Data Types/PDUs . 18
5.3.2 Unconfirmed IP data SDL . 18
5.3.3 Unconfirmed IP Data MSCs . 20
5.3.3.1 TX unconfirmed IP data MSC . 20
5.3.3.2 Form and send DLL data message MSC . 21
5.3.3.3 Unconfirmed Data Repeat . 22
5.4 Confirmed data DLL bearer service . 23
5.4.1 Confirmed IP Data Types/PDUs . 24
5.4.1.1 Rate ½ coded confirmed IP Data Types/PDUs . 24
5.4.1.2 Rate ¾ coded confirmed IP Data Types/PDUs . 24
5.4.1.2A Rate 1 coded confirmed IP Data Types/PDUs . 24
5.4.1.3 Confirmed response Data Types/PDUs . 24
5.4.2 Confirmed IP Data SDL . 25
5.4.2.1 Confirmed data source SDL . 25
5.4.2.2 Confirmed data target SDL . 27
5.4.3 Confirmed data MSCs . 28
5.4.3.1 Confirmed data source MSCs . 28
5.4.3.1.1 TX confirmed IP data MSC . 28
5.4.3.1.2 Form and send DLL data message MSC . 28
5.4.3.1.3 Process DLL confirmed response MSC . 29
5.4.3.2 Confirmed data target MSCs . 30
5.4.3.2.1 RX confirmed data MSC . 30
5.4.3.3 Confirmed data BS MSCs . 30
5.4.3.3.1 Confirmed data repeat MSC . 30
5.4.3.3.2 Confirmed data hangtime MSC . 31
5.4.4 Sliding window confirmed data . 32
5.5 UDP/IPv4 data . 32
5.6 UDP/IPv4 header compression. 33
ETSI

---------------------- Page: 3 ----------------------
4 ETSI TS 102 361-3 V1.2.1 (2013-07)
5.7 Application Data over IP Bearer Service . 34
5.7.1 Text Messaging . 35
5.7.2 Location . 35
6 Short data bearer service . 35
6.1 Defined Data . 35
6.1.1 Defined Data Types/PDUs . 35
6.1.2 Defined data information element values . 36
6.2 Raw data . 36
6.2.1 Raw data types/PDUs . 36
6.2.2 Raw data information element values . 36
6.3 Status/precoded data . 36
6.3.1 Status/precoded data types/PDUs . 37
6.3.2 Status/precoded data information element values . 37
6.4 Short data confirmed response . 37
7 PDU description . 38
7.1 Layer 3 and 4 PDP PDUs . 38
7.1.1 Full Link Control (FULL LC) PDUs . 38
7.1.1.1 Terminator Data Link Control PDU . 38
7.2 UDP/IPv4 Compressed Header . 39
7.2.1 UDP Header Information Elements . 39
7.2.1.1 UDP Source Port Number . 39
7.2.1.2 UDP Destination Port Number . 39
7.2.1.3 UDP Length . 40
7.2.1.4 UDP Checksum . 40
7.2.2 IPv4 Header Information Elements . 40
7.2.2.1 IPv4 Version . 40
7.2.2.2 IPv4 Internet Header Length (IHL) . 40
7.2.2.3 IPv4 Type Of Service (TOS) . 41
7.2.2.4 IPv4 Total Length . 41
7.2.2.5 IPv4 Identification . 41
7.2.2.6 IPv4 Flags . 41
7.2.2.7 IPv4 Fragment Offset . 41
7.2.2.8 IPv4 Time to Live . 42
7.2.2.9 IPv4 Protocol. 42
7.2.2.10 IPv4 Header Checksum . 42
7.2.2.11 IPv4 Source Address . 42
7.2.2.12 IPv4 Destination Address . 42
7.2.3 UDP/IPv4 Compressed Header. 43
7.2.4 UDP/IPv4 Compressed Header Information Elements . 43
7.2.4.1 Source IP Address IDentifier (SAID) . 43
7.2.4.2 Destination IP Address IDentifier (DAID) . 43
7.2.4.3 UDP Source Port IDentifier (SPID) . 44
7.2.4.4 UDP Destination Port IDentifier (DPID) . 44
7.2.4.5 Header Compression Opcode . 44
7.2.4.6 Extended Header 1 . 45
7.2.4.7 Extended Header 2 . 45
Annex A (normative): PDP timers and constants in DMR. 46
A.1 Layer 2 timers . 46
A.2 Layer 2 constants . 46
Annex B (normative): Opcode reference lists . 47
B.1 PDP Full Link Control Opcode list . 47
Annex C (informative): IPv6 transport over PDP . 48
C.1 IPv6 addressing . 48
C.2 Address mapping over PDP . 49
ETSI

---------------------- Page: 4 ----------------------
5 ETSI TS 102 361-3 V1.2.1 (2013-07)
C.3 IPv6 tunnelling techniques . 49
Annex D (informative): Change requests . 51
Annex E (informative): Bibliography . 52
History . 53

ETSI

---------------------- Page: 5 ----------------------
6 ETSI TS 102 361-3 V1.2.1 (2013-07)
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 Technical Specification (TS) has been produced by ETSI Technical Committee Electromagnetic compatibility and
Radio spectrum Matters (ERM).
The present document is part 3 of a multi-part deliverable covering the Technical Requirements for Digital Mobile
Radio (DMR), as identified below:
Part 1: "DMR Air Interface (AI) protocol";
Part 2: "DMR voice and generic services and facilities";
Part 3: "DMR data protocol";
Part 4: "DMR trunking protocol".
ETSI

---------------------- Page: 6 ----------------------
7 ETSI TS 102 361-3 V1.2.1 (2013-07)
1 Scope
The present document contains technical requirements for Digital Mobile Radio (DMR) operating in the existing
licensed land mobile service frequency bands, as identified in CEPT/ERC T/R 25-08 [3].
The present document describes the packet data protocol (PDP) of a scalable Digital Mobile Radio system which covers
three tiers of possible products:
Tier I: DMR equipment having an integral antenna and working in direct mode (communication without
infrastructure) under a general authorization with no individual rights operation.
Tier II: DMR systems operating under individual licences working in direct mode or using a Base Station
(BS) for repeating.
Tier III: DMR trunking systems under individual licences operating with a controller function that
automatically regulates the communications.
NOTE 1: Tier II and Tier III products encompass both simulcast and non-simulcast systems.
NOTE 2: The three tiers of possible products will work only independently and not interoperable.
The present document specifies the Packet Data Protocol (PDP) of DMR that has been specifically developed with the
intention of being suitable for all identified product tiers. The DMR protocol is intended to be applicable to the land
mobile frequency bands, physical channel offset, duplex spacing, range assumptions and all other spectrum parameters
without need for any change.
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 TS 102 361-1: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Digital
Mobile Radio (DMR) Systems; Part 1: DMR Air Interface (AI) protocol".
[2] ETSI TS 102 361-2: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Digital
Mobile Radio (DMR) Systems; Part 2: DMR voice and generic services and facilities".
[3] CEPT/ERC T/R 25-08: "Planning criteria and coordination of frequencies in the land mobile
service in the range 29,7 - 921 MHz".
[4] IETF RFC 791: "Internet Protocol; DARPA Internet Program; Protocol Specification".
[5] IETF RFC 792: "Internet Control Message Protocol; DARPA Internet Program; Protocol
Specification".
[6] IETF RFC 1918: "Address Allocation for Private Internets".
[7] IETF RFC 826: "Ethernet Address Resolution Protocol: Or converting network protocol addresses
to 48.bit Ethernet address for transmission on Ethernet hardware".
ETSI

---------------------- Page: 7 ----------------------
8 ETSI TS 102 361-3 V1.2.1 (2013-07)
[8] IETF RFC 2460: "Internet Protocol, Version 6 (IPv6) Specification ".
[9] IETF RFC 2529: "Transmission of IPv6 over IPv4 Domains without Explicit Tunnels".
[10] IETF RFC 3056: "Connection of IPv6 Domains via IPv4 Clouds".
[11] IETF RFC 3142: "An IPv6-to-IPv4 Transport Relay Translator".
[12] IETF RFC 4213: "Basic Transition Mechanisms for IPv6 Hosts and Routers".
[13] 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)".
[14] IETF RFC 768: "User Datagram Protocol".
[15] IETF RFC 2781: "UTF-16, an encoding of ISO 10646".
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.
Not applicable.
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Base Station (BS): fixed end equipment that is used to obtain DMR services
bearer service: telecommunication service providing the capability for information transfer between access point
burst: elementary amount of bits within the physical channel
NOTE: For detailed burst definition see clause 4.2.1 in TS 102 361-1 [1].
call: complete sequence of related transactions between MSs
NOTE: Transactions may be one or more bursts containing specific call related information.
Control plane (C-plane): part of the DMR protocol stack dedicated to control and data services
conventional: non-trunked communication
NOTE: This is a communication technique where any radio unit (MS) may communicate with one or more other
radio units (MSs) without using a trunking protocol, and may be either in direct mode or using any
additional equipment (e.g. BS).
Digital Mobile Radio (DMR): physical grouping that contains all of the mobile and/or fixed end equipment that is
used to obtain DMR services
direct mode: mode of operation where MSs may communicate outside the control of a network
NOTE: This is communication technique where any radio unit (MS) may communicate with one or more other
radio units (MSs) without the need for any additional equipment (e.g. BS).
ETSI

---------------------- Page: 8 ----------------------
9 ETSI TS 102 361-3 V1.2.1 (2013-07)
duplex: mode of operation by which information can be transferred in both directions and where the two directions are
independent
NOTE: Duplex is also known as full duplex.
frame: two contiguous time slots labelled 1 and 2
NOTE: A frame has a length of 60 ms.
logical channel: distinct data path between logical endpoints
NOTE: The logical channels are labelled 1 and 2. The logical channel may consist of sub-channels, e.g. SYNC,
embedded signalling, etc.
Mobile Station (MS): physical grouping that contains all of the mobile equipment that is used to obtain DMR mobile
services
payload: bits in the information field
physical channel: RF carrier that is modulated with information bits of the bursts
NOTE: The RF carrier may be a single frequency or a duplex pair of frequencies. The physical channel of a DMR
subsystem is required to support the logical channels.
Protocol Data Unit (PDU): unit of information consisting of protocol control information (signalling) and possibly
user data exchanged between peer protocol layer entities
Radio Frequency channel: radio frequency carrier (RF carrier)
NOTE: This is a specified portion of the RF spectrum. In DMR, the RF carrier separation is 12,5 kHz. The
physical channel may be a single frequency or a duplex spaced pair of frequencies.
repeater mode: mode of operation where MSs may communicate through a BS
NOTE: This is a communication technique where any radio unit (MS) may communicate with one or more other
radio units (MSs) with the need for an intermediate BS.
sliding window: DLL confirmed data transmission flow control procedure that requires the target to store multiple data
packets and provide a confirmed response on all the stored data upon request from the source
stop and wait: DLL confirmed data transmission flow control procedure that requires the target to send a confirmation
response after receiving each data packet
superframe: 6 continuous traffic bursts on a logical channel labelled "A" to "F"
NOTE: A superframe has a length of 360 ms and is used for voice traffic only.
time slot (or slot): elementary timing of the physical channel
NOTE: A timeslot has a length of 30 ms and will be numbered "1" or "2".
transmission: transfer period of bursts containing information or signalling
NOTE: The transmission may be continuous, i.e. multiple bursts transmission without ramp-up, ramp-down, or
discontinuous, i.e. single burst transmission with ramp-up and ramp-down period.
trunking: network controlled communication
NOTE: This is a communication technique where any radio unit (MS) may communicate with one or more other
radio units (MSs) using a trunking protocol and all MSs will be under control of a network.
User plane (U-plane): part of the DMR protocol stack dedicated to user voice services
ETSI

---------------------- Page: 9 ----------------------
10 ETSI TS 102 361-3 V1.2.1 (2013-07)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AB Appended Block
ACK (positive) ACKnowledgement
AI Air Interface
ARP Address Resolution Protocol
AT Access Type
BMP Basic Multilingual Plane
BS Base Station
NOTE: A reference designating a fixed end device.
CACH Common Announcement CHannel
CCL Call Control Layer
CRC Cyclic Redundancy Checksum for data error detection
C-plane Control plane
DAID Destination (IP
...