1、ETSI EN 300 396-7 1.2.1 (2000-12) European Standard (Telecommunications series) Terrestrial Trunked Radio (TETRA); Technical requirements for Direct Mode Operation (DMO); Part 7: Type 2 repeater air interface 2 ETSI EN 300 396-7 V1.2.1 (2000-12) Th Reference DENnETRA-02007-7 Keywords TETRA, radio, s
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6、cations Standards Institute 2000. All rights reserved. ETSI 3 ETSI EN 300 396-7 V1.2.1 (2000-12) Contents Intellectual Property Rights 7 Foreword 7 1 Scope 8 2 References 8 3 Definitions and abbreviations 9 3.1 Definitions 9 3.2 Abbreviations 11 4 Overview of protocol 12 4.1 4.2 4.3 4.3.1 4.3.2 4.3.
7、2.1 4.3.2.2 4.3.3 4.3.4 4.3.5 4.3.6 4.3.6.1 4.3.6.2 General . 12 The DM channel 13 DM call procedures for operation with a type 2 DM-REP . 14 Constraints on the kame structure 15 Setting up a call . 16 Call Set-up without presence check 16 Call Set-up with presence check 17 Changeover in a call . 18
8、 Pre-emption of a DM call . 19 Terminating a call 20 DM short data call 20 Unacknowledged short data message 20 Acknowledged short data message 21 5 DM-MS layer 3 service description for operation with a type 2 DM-REP 22 6 DM-MS layer 3 protocol for operation with a type 2 DM-REP 22 7 DM-MS layer 2
9、service description for operation with a type 2 DM-REP 22 8 DM-MS layer 2 protocol for operation with a type 2 DM-REP 23 8.1 Introduction . 23 8.1.1 Functions of lower MAC 23 8.1.2 Functions of upper MAC 23 8.2 Interface between lower and upper MAC . 23 8.3 Basic capabilities of the physical layer .
10、 23 8.3.1 DM-MS capabilities . 23 8.3.1.1 DM only and dual mode capable MS operation . 24 8.3.1.2 Dual watch capable MS operation . 24 8.4 Usage of DM channel with type 2 DM-REP . 24 8.4.1 Definition of DM channel 25 8.4.1.1 DM channel arrangement 25 8.4.1.2 DM channel A operation . 25 8.4.1.3 DM ch
11、annel B operation . 26 8.4.2 DM channel states 27 8.4.2.1 DM channel state definitions . 27 8.4.2.2 DM-MS channel surveillance procedures 27 8.4.2.2.1 Initial determination of DM channel state 27 8.4.2.2.2 DM-MS channel surveillance in idle mode 28 8.4.2.2.3 DM-MS channel surveillance at call Set-up
12、 28 8.4.2.3 Master DM-MS channel surveillance procedures during a call . 29 8.4.2.4 Slave DM-MS channel surveillance procedures during a call . 29 8.4.2.4.1 Slave MS channel surveillance during call transaction 29 8.4.2.4.2 Slave MS signal quality measurement during call transaction . 29 8.4.2.4.3 S
13、lave MS channel surveillance during reservation 30 8.4.2.5 Additional master DM-MS surveillance procedures . 30 8.4.2.5.1 Surveillance by channel A master MS 30 ETSI 4 ETSI EN 300 396-7 V1.2.1 (2000-12) 8.4.2.5.2 8.4.3 8.4.3.1 8.4.3.2 8.4.4 8.4.4.1 8.4.4.2 8.4.4.3 8.4.4.4 8.4.4.5 8.4.4.6 8.4.4.7 8.4
14、.5 8.4.5.1 8.4.5.2 8.4.6 8.4.7 8.4.7.1 8.4.7.2 8.4.7.3 8.4.7.4 8.4.7.5 8.4.7.6 8.4.7.7 8.4.7.8 8.4.7.9 8.4.7.10 8.4.7.10.1 8.4.7.10.2 8.4.7.10.3 8.4.7.11 8.4.7.12 8.4.7.13 8.4.7.14 8.4.7.15 8.4.7.16 Surveillance by channel B master MS 30 DM-MAC states . 31 DM-MAC state definitions 31 Criteria for ch
15、anging DM-MAC state 31 DM-MS channel monitoring procedures . 31 DM channel during initial call Set-up and new call transaction by current master MS . 31 DM channel during call Set-up with presence check . 31 DM channel in occupation during a circuit mode call 32 DM channel in reservation during a ci
16、rcuit mode call 32 DM channel in occupation during an SDS call . 32 DM channel usage during pre-emption signalling 32 Transmission of layer 3 messages by DM-MAC . 32 Transmission of C-plane messages by DM-MAC 32 Transmission of U-plane messages by DM-MAC 33 Transmission of layer 2 messages generated
17、 by DM-MAC . 33 General DM-MAC procedures . 33 DM-MAC repeat transmissions . 33 DM-MAC frame countdown procedure . 33 Use of timers 33 Linearization 34 Fragmentation 34 Fill bit indication 34 Selection of pseudo address 35 Slot flag indication 35 Requests bitmap . 35 DM aspects of dual watch operati
18、on 35 Model of operation 35 Dual watch synchronization . 35 Dual watch precedence rules 36 DM channel usage during timing change request signalling . 32 Air interface encryption 36 Channel A or B operation . 36 Sending short data as a transaction within a circuit mode call 36 SDS time remaining 37 T
19、iming change procedure 37 Timing change at changeover or pre-emption 37 MAC procedures for transfer of signalling messages 37 Formation of MAC PDU 37 8.5 8.5.1 8.5.2 8.5.3 8.5.4 8.5.5 8.5.6 8.5.7 8.5.7.1 8.5.7.2 8.5.7.2.1 8.5.7.2.2 8.5.7.2.3 8.5.7.2.4 8.5.7.3 8.5.7.3.1 8.5.7.3.2 8.5.7.3.3 8.5.7.3.4
20、8.5.7.3.5 8.5.7.3.6 Addressing . 37 Use of air interface encryption 37 Fragmentation and reconstruction . 37 Fill bit addition and deletion . 37 Transmission and reception of messages by layer 2 . 37 Random access protocol . 38 Procedures for master DM-MS 38 Indicating frames available for requests
21、. 38 Response to pre-emption or changeover request . 39 Response to timing change request 39 Procedures for requesting DM-MS 39 Preparing for random access 39 First transmission of request 39 Valid access slots 40 Introduction 38 Monitoring frames available for requests . 38 Waiting for response . 4
22、1 Subsequent transmission of request 41 Abandoning random access attempt . 41 8.6 MAC procedures in traffic mode 41 9 9.1 Introduction . 41 9.1.1 Functions of lower MAC 42 DM-REP layer 2 protocol for a type 2 DM-REP . 41 ETSI 5 ETSI EN 300 396-7 V1.2.1 (2000-12) 9.1.2 9.2 9.3 9.4 Functions of upper
23、MAC 42 Interface between lower and upper MAC . 42 Basic capabilities of the DM-REP physical layer 42 Usage of DM channel 43 9.4.1 9.4.1.1 9.4.1.2 9.4.2 9.4.2.1 9.4.2.2 9.4.2.2.1 9.4.2.2.2 9.4.2.2.3 9.4.2.2.4 9.4.2.3 9.4.3 9.4.4 9.4.4.1 9.4.4.2 9.4.4.3 9.4.4.4 9.4.4.5 9.4.4.6 9.4.5 9.4.5.1 9.4.5.1.1
24、9.4.5.1.2 9.4.5.2 9.4.5.3 9.4.6 . DM-REP operation 43 Channel structure 43 Channel synchronization . 43 DM-REP states 44 DM-REP state definitions . 44 DM-REP channel surveillance procedures . 45 DM-REP channel surveillance when idle on a free channel (i.e. in state 1) . 45 DM-REP channel surveillanc
25、e when idle on a busy channel (i.e. in state 2) 45 DM-REP channel surveillance when idle at DM-MS call Set-up . 46 DM-REP channel surveillance when active with one DM channel free . 46 DM-REP channel surveillance when active during a call . 46 Criteria for changing DM-REP state . 46 DM-REP channel m
26、onitoring procedures 46 DM channel during call Set-up with presence check . 47 DM channel in occupation during a circuit mode call 47 DM channel in reservation during a circuit mode call 47 DM channel in occupation during an SDS call . 47 DM channel following pre-emption or changeover acceptance . 4
27、7 DM channel following timing change announcement . 48 DM-REP presence signal . 48 Channel free . 48 DM-REP idle on a fkee carrier (i.e. in state 1) . 48 DM-REP active with one DM channel free 48 DM channel in occupation 48 DM channel in reservation 49 DM-REP linearization 49 9.5.1 9.5.1.1 9.5.1.1.1
28、 9.5.1.1.2 9.5.1.1.3 9.5.1.1.4 9.5.1.1.5 9.5.1.2 9.5.1.2.1 9.5.1.2.2 9.5.1.3 9.5.2 9.5.2.1 9.5.2.2 9.5.2.3 9.5.3 9.5.3.1 9.5.3.2 9.5.3.3 9.5.3.4 9.5.3.5 9.5.3.6 9.6 9.5 DM-REP procedures for re-transmission of signalling messages 50 Re-transmission of signalling messages received from the master DM-
29、MS 50 Re-transmission of master DM-MS signalling messages received in a DSB . 50 General procedures 50 Re-transmission of DM-SDS DATA or DM-SDS UDATA message 50 Re-transmission of other messages in a DSB when not using multi-slot regeneration 51 regeneration 51 Call transaction without multi-slot re
30、generation . 51 Call transaction with multi-slot regeneration 51 Regeneration of additional repetitions on the slave link . 51 Re-transmission of signalling messages received from a slave DM-MS . 51 General procedures . 51 Re-transmission of random access request . 52 DM-REP signalling mechanisms 52
31、 Frame countdown procedure . 52 Fill bit addition and deletion . 52 Null PDU . 52 Air interface encryption 53 Timing change procedure 53 Random access procedures for DM-REP . 53 DM-REP procedures in traffic mode 53 Re-transmission of DM-SETUP or DM-SETUP PRES message . 50 Re-transmission of other me
32、ssages in a DSB during traffic transmission with multi-slot Re-transmission of master DM-MS signalling messages received in a DNB . 51 Re-transmission of response messages from a slave DM-MS . 51 10 PDU descriptions 53 11 Radio aspects of DM-MS for operation with a type 2 DM-REP . 55 11.1 Introducti
33、on . 55 11.2 Modulation 55 11.3 Radio transmission and reception . 55 ETSI 6 ETSI EN 300 396-7 V1.2.1 (2000-12) 11.3.1 11.3.2 11.3.3 11.3.4 11.3.5 11.3.6 11.4 11.4.1 11.4.2 11.4.3 11.4.4 11.4.5 11.4.6 11.5 11.6 11.7 Introduction . 55 Frequency bands and channel arrangernent . 55 Reference test plane
34、s 55 Transmitter characteristics 55 Receiver characteristics 55 Transmitter/receiver performance . 55 Radio sub-system synchronization . 55 Introduction . 55 Definitions and general requirements for synchronization of DM-MSs 56 Timebase counters . 57 Requirements for the frequency reference source o
35、f DM mobiles 57 Requirements for the synchronization of a slave DM mobile . 57 Synchronization requirements for a master MS operating on channel B . 57 Channel coding and scrambling . 57 Channel multiplexing for DM operation through a type 2 DM-REP 57 Radio sub-system link control 58 12 12.1 Introdu
36、ction . 58 12.2 Modulation 58 12.3 Radio aspects of a type 2 DM-REP . 58 Radio transmission and reception . 58 12.3.1 12.3.2 12.3.3 12.3.4 12.3.4.1 12.3.4.2 12.3.4.3 12.3.4.3.1 12.3.4.3.2 12.3.4.3.3 12.3.4.3.3.1 12.3.4.3.3.2 12.3.4.3.4 12.3.4.3.5 12.3.4.4 12.3.4.5 12.3.4.6 12.3.4.7 12.3.5 12.3.6 Int
37、roduction . 58 Frequency bands and channel arrangement . 58 Reference test planes 58 Output power 58 Transmitter characteristics 58 Power classes . 58 Unwanted conducted emissions . 59 Definitions 59 Unwanted emissions close to the carrier . 59 Unwanted emissions far from the carrier 59 Discrete spu
38、rious . 59 Wideband noise . 59 Unwanted emissions in the non-transmit state 59 Unwanted radiated emissions 59 Radio frequency tolerance . 59 RF output power time mask 59 Transmitter intermodulation attenuation 59 Receiver characteristics 60 Transmitter/receiver performance . 60 Unwanted emissions du
39、ring the Linearization CHannel (LO . 59 12.4 Radio sub-system synchronization . 60 12.4.1 Introduction . 60 12.4.2 Definitions and general requirements for synchronization . 60 12.4.3 Timebase counters . 60 12.4.4 Requirements for the frequency reference source of a type 2 DM-REP 60 12.4.5 Requireme
40、nts for the synchronization of a type 2 DM-REP . 60 12.5 Channel coding and scrambling . 61 12.6 Channel multiplexing for a type 2 DM-REP . 61 12.7 Radio sub-system link control 61 Annex A (normative): Timers and constants in DM-MS and DM-REP . 62 History . 63 ETSI 7 ETSI EN 300 396-7 V1.2.1 (2000-1
41、2) 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 O00 314: “Intellectual Prope
42、rty 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 ClattD:/www.etsP.c/iDr. Pursuant to the ETSI IPR Policy, no investigation, including IPR sear
43、ches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR O00 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
44、) has been produced by ETSI Project Terrestrial Trunked Radio (TETRA). The present document had been submitted to Public Enquiry as ETS 300 396-7. During the processing for Vote it was converted into an EN. The present document is part 7 of a multi-part deliverable covering the Technical requirement
45、s for Direct Mode Operation (DMO), as identified below: Part 1: Part 2: Part 3: Part 4: Part 5: Part 6: Part 7: Part 8: “General network design“; “Radio aspects“; “Mobile Station to Mobile Station (MS-MS) Air Interface (AI) protocol“; “Type 1 repeater air interface“; “Gateway air interface“; “Securi
46、ty“; “Type 2 repeater air interface“; “Protocol Implementation Conformance Statement (PICS) proforma specification“. National transposition dates Date of adoption of this EN Date of latest announcement of this EN (doa): Date of latest publication of new National Standard or endorsement of this EN (d
47、op/e): Date of withdrawal of any conflicting National Standard (dow): 8 December 2000 31 March 2001 30 September 2001 30 September 2001 ETSI 8 ETSI EN 300 396-7 V1.2.1 (2000-12) 1 Scope The present document defines the Terrestrial Trunked Radio (TETRA) Direct Mode Operation (DMO). It specifies the b
48、asic 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 and tele
49、services. This part applies to the TETRA Direct Mode Repeater (DM-REP) air interface and contains the specifications, where applicable, of the physical, data link and network layers according to the IS0 model. The specifications contained herein apply to a DM-REP as a stand-alone unit supporting two calls on the air interface (type 2 DM-REP). They also cover the operation of a Direct Mode Mobile Station (DM-MS) with a type 2 DM-REP. NOTE 1 : The specifications for a Direct Mode RepeatedGateway (DM-REP/GATE) combined implementation are provided in ETS 300 396-5 5, together with t
