ETSI EN 300 396-10 V1.1.2 (2002-08)

Terrestrial Trunked Radio (TETRA); Technical requirements for Direct Mode Operation (DMO); Part 10: Managed Direct Mode Operation (M-DMO)

DEN/TETRA-02042-10

Prizemni snopovni radio (TETRA) – Tehnične zahteve za neposredni način delovanja (DMO) – 10. del: Upravljani neposredni način delovanja (M-DMO)

General Information

• Status: Published
• Publication Date: 19-Aug-2002
• Technical Committee: TCCE 2 - Air Interface / Radio aspects
• Current Stage: 13 - TB decision to make document historical
• Completion Date: 12-Oct-2007
• Ref Project: SIST EN 300 396-10 V1.1.2:2003 - Terrestrial Trunked Radio (TETRA); Technical requirements for Direct Mode Operation (DMO); Part 10: Managed Direct Mode Operation (M-DMO)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.QDþLQ0'02Terrestrial Trunked Radio (TETRA); Technical requirements for Direct Mode Operation (DMO); Part 10: Managed Direct Mode Operation (M-DMO)33.070.10Prizemni snopovni radio (TETRA)Terrestrial Trunked Radio (TETRA)ICS:Ta slovenski standard je istoveten z:EN 300 396-10 Version 1.1.2SIST EN 300 396-10 V1.1.2:2003en01-december-2003SIST EN 300 396-10 V1.1.2:2003SLOVENSKI
STANDARD



SIST EN 300 396-10 V1.1.2:2003



ETSI EN 300 396-10 V1.1.2 (2002-08)European Standard (Telecommunications series) Terrestrial Trunked Radio (TETRA);Technical requirements for Direct Mode Operation (DMO);Part 10: Managed Direct Mode Operation (M-DMO)
SIST EN 300 396-10 V1.1.2:2003



ETSI ETSI EN 300 396-10 V1.1.2 (2002-08) 2
Reference DEN/TETRA-02042-10 Keywords DMO, PDO, TETRA, data, radio ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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ETSI ETSI EN 300 396-10 V1.1.2 (2002-08) 3
Contents Intellectual Property Rights.5 Foreword.5 1 Scope.6 2 References.7 3 Definitions and abbreviations.7 3.1 Definitions.7 3.2 Abbreviations.9 4 Overview of M-DMO.10 5 M-DM-MS.13 5.1 Operation of M-DM-MS.13 5.2 M-DM-MS authorized by M-DM-AUTH.13 5.3 V+D authorized M-DM-MS.14 5.4 Transmit authorization for M-DM-MS.15 5.4.1 Transmit authorization for M-DM-MS authorized by M-DM-AUTH.15 5.4.2 Transmit authorization for V+D authorized M-DM-MS.16 5.4.3 Release cause element.16 6 M-DM-AUTH.16 6.1 Operation of M-DM-AUTH.16 6.2 Loss of link to SwMI.18 6.3 Managed out-of-range or dual mode operation.18 6.4 Maintaining link to M-DM-MSs.18 6.5 M-DM-AUTH direct mode procedures.18 6.5.1 Direct mode procedures for stand-alone M-DM-AUTH.18 6.5.1.1 General.18 6.5.1.2 Basic capabilities of stand-alone M-DM-AUTH's physical layer.19 6.5.1.3 State definitions for stand-alone M-DM-AUTH.19 6.5.1.4 Channel surveillance procedures for stand-alone M-DM-AUTH.19 6.5.1.4.1 Initial determination of DM channel state by stand-alone M-DM-AUTH.20 6.5.1.4.2 Channel surveillance procedures after initial determination of channel state.20 6.5.1.4.3 Channel surveillance only prior to transmission of presence signal.21 6.5.1.5 Criteria for changing state for stand-alone M-DM-AUTH.21 6.5.1.6 Linearization by stand-alone M-DM-AUTH.21 6.5.2 Direct mode procedures for M-DM-REP, M-DM-GATE or M-DM-REP/GATE.21 6.6 M-DM-AUTH V+D procedures.21 7 Operation of M-DMO channels.22 7.1 General procedures.22 7.2 Withdrawing authorization.22 7.3 Power class.22 8 Authorization presence signal.23 8.1 M-DMO presence signal.23 8.2 Transmission rules for authorization presence signal.23 8.2.1 Transmission of presence signal by stand-alone M-DM-AUTH.23 8.2.1.1 Channel free.23 8.2.1.1.1 Carrier free.23 8.2.1.1.2 One DM channel free.24 8.2.1.2 Channel occupied or reserved.24 8.2.2 Transmission of presence signal by M-DM-REP.24 8.2.3 Transmission of presence signal by M-DM-GATE or M-DM-REP/GATE.25 8.3 DPRES-SYNC PDU.25 8.3.1 DPRES-SYNC PDU for stand-alone M-DM-AUTH.26 8.3.1.1 Definition of DPRES-SYNC PDU for stand-alone M-DM-AUTH.26 SIST EN 300 396-10 V1.1.2:2003



ETSI ETSI EN 300 396-10 V1.1.2 (2002-08) 4
8.3.1.2 DPRES-SYNC element definitions for stand-alone M-DM-AUTH.27 8.3.1.2.1 Addressing for URT = 00102.27 8.3.1.2.2 Addressing for URT = 00112.27 8.3.1.2.3 Addressing for URT = 01002 or 01012.28 8.3.1.2.4 Addressing for URT = 01102.28 8.3.1.2.5 Channel state.28 8.3.1.2.6 Channel usage.29 8.3.1.2.7 Device address.29 8.3.1.2.8 Frequency efficient mode flag.29 8.3.1.2.9 Maximum DM-MS power class.29 8.3.1.2.10 M-DMO flag.30 8.3.1.2.11 MNI of controlling SwMI.30 8.3.1.2.12 Number of validity time units.30 8.3.1.2.13 Presence signal dual watch synchronization flag.30 8.3.1.2.14 Usage restriction type (URT).31 8.3.1.2.15 Validity time unit.31 8.3.2 DPRES-SYNC PDU for M-DM-REP.31 8.3.3 DPRES-SYNC PDU for M-DM-GATE or M-DM-REP/GATE.32 Annex A (normative): Timers and constants specific to M-DMO.33 A.1 Timers and constants in M-DM-MS.33 A.2 Timers and constants in M-DM-AUTH.33 Annex B (normative): Differences for direct MS-MS operation.34 Annex C (normative): Differences for type 1 repeater operation.37 C.1 Differences for M-DM-MS.37 C.2 Differences for M-DM-REP.37 Annex D (normative): Differences for gateway operation.38 D.1 Differences for M-DM-MS.38 D.2 Differences for M-DM-GATE or M-DM-REP/GATE.38 Annex E (normative): Differences for type 2 repeater operation.39 E.1 Differences for M-DM-MS.39 E.2 Differences for M-DM-REP.39 Annex F (normative): Differences for V+D authorized M-DM-MS.40 Annex G (informative): Bibliography.41 History.42
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ETSI ETSI EN 300 396-10 V1.1.2 (2002-08) 5
Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (Telecommunications series) has been produced by ETSI Project Terrestrial Trunked Radio (TETRA). The present document is part 10 of a multi-part deliverable covering the Terrestrial Trunked Radio (TETRA); 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; Part 8: Protocol Implementation Conformance Statement (PICS) proforma specification; Part 10: Managed Direct Mode Operation (M-DMO).
National transposition dates Date of adoption of this EN: 16 August 2002 Date of latest announcement of this EN (doa): 30 November 2002 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 May 2003 Date of withdrawal of any conflicting National Standard (dow): 31 May 2003
SIST EN 300 396-10 V1.1.2:2003



ETSI ETSI EN 300 396-10 V1.1.2 (2002-08) 6
1 Scope The multi-part deliverable ETS/EN 300 396 defines the Terrestrial Trunked Radio (TETRA) Direct Mode Operation (DMO). It specifies the basic air interface, the interworking between Direct Mode (DM) groups via repeaters, and interworking 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 and teleservices. The present document defines TETRA Managed Direct Mode Operation (M-DMO). M-DMO provides a means to restrict the use of Direct Mode Operation (DMO) by requiring prior authorization before a Direct Mode Mobile Station (DM-MS) is permitted to transmit on a radio frequency. This modifies the operation of DM-MSs from that specified in ETS 300 396-3 [3], EN 300 396-4 [4], ETS 300 396-5 [5] and EN 300 396-7 [7]. M-DMO provides a control mechanism by which radio frequencies (M-DMO frequencies) may be given for DMO use for a period of time; those frequencies are considered to be managed frequencies. All M-DMO devices operating on a managed frequency shall comply with the transmit restrictions defined in the present document. An M-DMO DM-MS (M-DM-MS) may receive the authorization to transmit from a broadcast signal sent on the M-DMO frequency. Or, alternatively, it may obtain the authorization directly on the V+D side from the SwMI or from an M-DMO management station. The authorizing unit which sends the broadcast signal on the M-DMO frequency is referred to as an M-DM-AUTH. It obtains the authorization to operate as an M-DM-AUTH from the V+D SwMI or from a management station that is authorized to allocate frequencies for M-DMO. An M-DM-AUTH may be a stand-alone unit (performing only the authorization function), or it may perform also the function of a DM-REP, DM-GATE or DM-REP/GATE. The content of the present document is as follows: - Clause 4: provides an overview of M-DMO; - Clause 5: describes the procedures for M-DMO mobile stations; - Clause 6: describes the procedures for M-DM-AUTHs; - Clause 7: describes the operation of M-DMO frequencies; - Clause 8: describes the usage of the authorization presence signal; - Annex A: lists the timers and constants specific to M-DMO; - Annexes B through F: describe the differences from ETS 300 396-3 [3], EN 300 396-4 [4], ETS 300 396-5 [5] and EN 300 396-7 [7] arising from M-DMO. The present document assumes familiarity with operation of TETRA in a network environment as described in EN 300 392, and with operation of TETRA in Direct Mode as described in other parts of ETS/EN 300 396. The present document does not define the process for deciding which frequencies are allocated to M-DMO use. SIST EN 300 396-10 V1.1.2:2003



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2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. • References are either specific (identified by date of publication and/or edition number or version number) or non-specific. • For a specific reference, subsequent revisions do not apply. • For a non-specific reference, the latest version applies. [1] ETSI ETS 300 396-1: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct Mode Operation (DMO); Part 1: General Network Design". [2] ETSI EN 300 396-2: " Terrestrial Trunked Radio (TETRA); Technical requirements for Direct Mode Operation (DMO); Part 2: Radio aspects". [3] ETSI ETS 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". [5] ETSI ETS 300 396-5: "Terrestrial Trunked Radio (TETRA); Technical Requirements for Direct Mode Operation (DMO); Part 5: Gateway air interface". [6] ETSI ETS 300 396-6: "Terrestrial Trunked Radio (TETRA); Direct Mode Operation (DMO); Part 6: Security". [7] ETSI EN 300 396-7: "Terrestrial Trunked Radio (TETRA); Technical requirements for Direct Mode Operation (DMO); Part 7: Type 2 repeater air interface". [8] ETSI EN 300 392-2: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 2: Air Interface (AI)". 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: authorization datum point: geographical point in space from which M-DMO is allowed authorization presence signal: message that is transmitted by an M-DM-AUTH on an M-DMO RF carrier NOTE: It permits M-DM-MSs which receive this message to know that the M-DM-AUTH is within range. It indicates which M-DM-MSs are authorized to transmit on the RF carrier, and the validity time for which those M-DM-MSs are authorized. call: individual call or group call NOTE 1: An individual call is a complete sequence of related call transactions between two MSs. There are always two participants in an individual call. NOTE 2: A group call is a complete sequence of related call transactions involving two or more MSs. The number of participants in a group call is not fixed, but is at least two. NOTE 3: Participants may join (late entry) and leave an ongoing call. SIST EN 300 396-10 V1.1.2:2003



ETSI ETSI EN 300 396-10 V1.1.2 (2002-08) 8
call transaction: all of the functions associated with a complete unidirectional transmission of information during a call NOTE: A call is made up of one or more call transactions. In a simplex call these call transactions are sequential. changeover: within a call, the process of effecting a transfer of the master role (and hence transmitting MS) at the end of one call transaction so that another can commence Direct Mode Call Control (DMCC): layer 3 entity responsible for setting up and maintaining a call in DMO DM channel: specific grouping of timeslots in the DM multiplex structure related to a particular DM RF carrier i.e. DM frequency (or to a pair of duplex-spaced RF carriers for operation with a type 1B or type 2 DM-REP or a type 1B DM-REP/GATE) 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. 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 V+D network NOTE: DM operation is performed without intervention of any base station. direct mode presence signal: message that is transmitted by a DM-REP, DM-GATE, DM-REP/GATE or M-DM-AUTH in order to indicate its presence on a DM RF carrier NOTE: It permits DM-MSs which receive this message to know that the DM-REP, DM-GATE, DM-REP/GATE or M-DM-AUTH is within range. 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; or - idle: if the DM-MS is not in a call. DUal Mode switchable Mobile Station (DU-MS): MS that is capable of both TETRA DMO and TETRA V+D operation 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 V+D mode or a V+D channel while in DMO. Dual Watch Mobile Station (DW-MS): MS that is capable of both TETRA DMO and TETRA V+D operation NOTE: The MS is capable of periodically monitoring the V+D control channel while in a DM call, a DM RF carrier while in a V+D call and, when idle, it periodically monitors both the DM RF carrier and the V+D control channel. Direct Mode GATEway (DM-GATE): device which provides gateway connectivity between DM-MS(s) and the TETRA V+D network NOTE: The gateway provides the interface between TETRA DMO and TETRA V+D mode. Direct Mode REPeater (DM-REP): device that operates in TETRA DMO 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 operates on a pair of duplex-spaced RF carriers. In the case of a type 1B or type 2 DM-REP, one of the RF carriers is used as the "uplink" from DM-MSs to the DM-REP and the other is used as the "downlink" from the DM-REP to DM-MSs. SIST EN 300 396-10 V1.1.2:2003



ETSI ETSI EN 300 396-10 V1.1.2 (2002-08) 9
Direct Mode REPeater/GATEway (DM-REP/GATE): device that combines the functions of a Direct Mode repeater and a Direct Mode gateway in a single implementation and is capable of providing both functions simultaneously (so that, during a call transaction initiated by a DM-MS, the DM-REP/GATE provides gateway connectivity to the TETRA V+D network and also provides a repeater function on the DM channel) NOTE: The repeater part of the combined implementation may be either a type 1A repeater, operating on a single DM RF carrier, or a type 1B repeater, operating on a pair of duplex-spaced DM RF carriers. frequency efficient mode: mode of operation where two independent DM communications are supported on a single RF carrier (or pair of duplex-spaced RF carriers for operation with a type 2 DM-REP) NOTE: In frequency efficient mode the two DM channels are identified as channel A and channel B. gateway: generic term used to describe either a pure DM-GATE or a combined implementation with a repeater (DM-REP/GATE) Managed Direct Mode Operation (M-DMO): method of operation in which a direct mode terminal is only permitted to transmit when it has received a signal authorizing it to do so Managed Direct Mode AUTHorizing unit (M-DM-AUTH): device that transmits an authorization presence signal on a DM RF carrier NOTE: An M-DM-AUTH may be a stand-alone unit, performing only the authorization function, or it may perform also the function of a DM-REP, DM-GATE or DM-REP/GATE (in which case it is referred to as an M-DM-REP, M-DM-GATE or M-DM-REP/GATE respectively). M-DMO management station: station that is accessed via the V+D network and is authorized to allocate frequencies for M-DMO Managed Direct Mode Mobile Station (M-DM-MS): DM-MS that is using managed direct mode operation NOTE: An M-DM-MS is not permitted to transmit on the DM RF carrier unless it has received a signal containing authorization and the authorized time has not expired. The authorization may have been received from an M-DM-AUTH transmitting on the DM RF carrier. Alternatively the authorization may have been received from the V+D SwMI or an M-DMO management station (in which case the M-DM-MS is referred to as a V+D authorized M-DM-MS). normal mode: mode of operation where only one DM communication is supported on an RF carrier (or pair of duplex-spaced RF carriers for operation with a type 1B DM-REP or type 1B DM-REP/GATE) surveillance: process of determining the current state of the DM RF carrier when in idle mode trunked voice and data network: network which uses the TETRA V+D operation V+D authorized M-DM-MS: type of M-DM-MS that receives its authorization to transmit on the DM RF carrier directly from the V+D SwMI or from an M-DMO management station via the V+D network V+D operation: mode of operation where MSs may communicate via the TETRA V+D air interface which is controlled by the TETRA Switching and Management Infrastructure (SwMI) 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: DM Direct Mode DMO Direct Mode Operation DM-MS Direct Mode Mobile Station DU-MS DUal mode (V+D/Direct Mode) switchable Mobile Station DW-MS Dual Watch Mobile Station DM-REP Direct Mode REPeater DM-GATE Direct Mode GATEway DM-REP/GATE Direct Mode REPeater/GATEway DMCC Direct Mode Call Control entity DSB Direct Mode Synchronization Burst SIST EN 300 396-10 V1.1.2:2003



ETSI ETSI EN 300 396-10 V1.1.2 (2002-08) 10 GPS Global Positioning System MAC Medium Access Control M-DMO Managed Direct Mode Operation M-DM-MS Managed Direct Mode Mobile Station M-DM-AUTH Managed Direct Mode AUTHorization unit M-DM-REP Managed Direct Mode REPeater M-DM-GATE Managed Direct Mode GATEway M-DM-REP/GATE Managed Direct Mode REPeater/GATEway MNI Mobile Network Identity MS Mobile Station PDU Protocol Data Unit RF Radio Frequency SDS Short Data Service SDS-TL SDS Transport Layer SSI Short Subscriber Identity SwMI Switching and Management Infrastructure TETRA TErrestrial Trunked RAdio TSI TETRA Subscriber Identity V+D Voice plus Data 4 Overview of M-DMO Managed Direct Mode Operation (M-DMO) enables the use of DMO to be controlled by pr
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