1、ETSI TS 1 O0 396-4 VI 2.1 (2000-10) _ Technical Specification Terrestrial Trunked Radio (TETRA); Technical requirements for Direct Mode Operation (DMO); Part 4: Type 1 repeater air interface 2 ETSI TS 1 O0 396-4 V1.2.1 (2000-1 O) The pre Reference DTSITETRA-02007-4 Keywords TETRA, radio, security ET
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6、pean Telecommunications Standards Institute 2000. All rights reserved. ETSI 3 ETSI TS 1 O0 396-4 V1.2.1 (2000-1 O) Contents Intellectual Property Rights 9 Foreword . 9 1 Scope 1 0 2 References 10 3 Definitions and abbreviations . 11 3.1 Definitions 11 3.2 Abbreviations . 13 4 4.1 General . 14 4.2 Th
7、e DM channel . 16 4.3 DM call procedures for operation with a type 1 DM-REP . 16 4.3.1 4.3.2 4.3.2.1 4.3.2.2 4.3.3 4.3.4 4.3.5 4.3.6 4.3.6.1 4.3.6.2 5 5.1 5.2 Services offered 25 Overview of protocol 14 Constraints on the frame structure 18 Setting up a call 18 Call set-up without presence check . 1
8、9 Call set-up with presence check 20 Changeover in a call . 21 Terminating a call . 23 DM short data call 23 Unacknowledged short data message 23 Acknowledged short data message . 24 DM-MS layer 3 service description for operation with a type 1 DM-REP 24 Introduction 24 5.3 Primitive description 25
9、5.4 Parameter description . 25 DM-MS layer 3 protocol for operation with a type 1 DM-REP . 25 Pre-emption of a DM call . 22 5.5 States for DMCC-SAP . 25 6 6.1 6.1.1 6.2 6.2.1 6.2.1.1 6.2.1.2 6.2.1.3 6.2.2 6.2.2.1 6.2.2.2 6.2.3 6.2.3.1 6.2.3.2 6.2.4 6.2.4.1 6.2.4.2 6.2.4.3 6.2.5 6.2.5.1 6.2.5.2 6.2.5
10、.3 6.2.6 6.3 6.3.1 6.3.1.1 Introduction 25 DMCC protocol states 25 Circuit mode calls . 26 Procedures for call set-up without presence check . 26 Outgoing call . 26 Temporary group address 26 Outgoing call . 27 Usage of DM-OCCUPIED PDU 27 Sending of DM-OCCUPIED PDU by master DM-MS . 27 Procedures du
11、ring occupation . 27 Master DM-MS . 27 Slave DM-MS . 27 Transmitting Party Number Identification (TPNI) 27 Procedures during reservation . 28 Master DM-MS . 28 Slave DM-MS . 28 Pre-emption of short data sent as a transaction within a circuit mode call 28 Procedures to set up a new call by pre-emptio
12、n 28 Sending short data . 28 Incoming call . 26 Procedures for call set-up with presence check 27 Incoming call . 27 Late entry by slave DM-MS 27 Short Data Service (SDS) procedures 28 Sending short data on a free channel . 28 ETSI 4 ETSI TS 1 O0 396-4 V1.2.1 (2000-1 O) 6.3.1.1.1 Sending unacknowled
13、ged short data on a free channel . 28 6.3.1.1.2 Sending acknowledged short data on a free channel . 29 6.3.1.2 Sending short data by pre-emption 29 6.3.1.3 Sending short data during circuit mode transmission 29 6.3.1.4 Sending short data as a transaction within a circuit mode call 30 6.3.2 Receiving
14、 short data 30 6.3.2.1 Receiving unacknowledged short data 30 6.3.2.2 Receiving acknowledged short data 30 6.3.3 Additional addressing . 30 6.3.4 Extended error protection . 30 6.4 Usage of DMA-UNITDATA primitive 30 7 DM-MS layer 2 service description for operation with a type 1 DM-REP 30 7.1 Introd
15、uction 30 7.2 Layer 2 architecture 30 7.3 Service descriptions 31 7.3.1 Services at the DMA-SAP 31 7.3.1.1 Services provided to layer 3 31 7.3.1.2 Service primitives at the DMA-SAP . 31 7.3.2 Services at the DMC-SAP 31 7.3.2.1 Services provided to layer 3 31 7.3.2.2 Service primitives at the DMC-SAP
16、 . 32 7.3.2.2.1 DMC-CONFIGURE primitive 32 7.3.2.2.2 DMC-REPORT primitive 32 7.3.3 Services at the DMD-SAP 32 7.3.3.1 Services provided to the U-plane application 32 7.3.3.2 Service primitives at the DMD-SAP . 32 7.4 Parameter listing . 32 8 DM-MS layer 2 protocol for operation with a type 1 DM-REP
17、. 33 8.1 8.1.1 8.1.2 8.2 8.2.1 8.2.2 8.2.3 8.2.4 8.2.5 8.2.6 8.3 8.3.1 8.3.1.1 8.3.1.2 8.4 8.4.1 8.4.1.1 8.4.1.2 8.4.2 8.4.2.1 8.4.2.2 8.4.2.2.1 8.4.2.2.2 8.4.2.2.3 8.4.2.3 8.4.2.4 8.4.2.4.1 8.4.2.4.2 8.4.2.4.3 8.4.3 8.4.3.1 8.4.3.2 Introduction 33 Functions of lower MAC 33 Functions of upper MAC 33
18、 Interface between lower and upper MAC . 33 Logical channels defined at the DMV-SAP 33 Service primitives at the DMV-SAP . 33 PDU mapping of the logical channels at the DMV-SAP 33 Scrambling mechanism . 34 PDU error detection 34 Modes of operation . 34 Basic capabilities of the physical layer . 34 D
19、M-MS capabilities 34 DM only and dual mode capable MS operation 34 Dual watch capable MS operation 35 Usage of DM channel with type 1 DM-REP 35 Definition of DM channel . 36 DM channel arrangement 36 DM channel operation . 36 DM channel states . 37 DM channel state definitions . 37 DM-MS channel sur
20、veillance procedures . 37 Initial determination of DM channel state . 37 DM-MS channel surveillance in idle mode . 38 DM-MS channel surveillance at call set-up . 38 Master DM-MS channel surveillance procedures during a call 39 Slave DM-MS channel surveillance procedures during a call 39 Slave MS cha
21、nnel surveillance during call transaction . 39 Slave MS signal quality measurement during call transaction 39 Slave MS channel surveillance during reservation 40 DM-MAC states 40 DM-MAC state definitions . 40 Criteria for changing DM-MAC state . 40 ETSI 5 ETSI TS 1 O0 396-4 V1.2.1 (2000-1 O) 8.4.4 8
22、.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 8.4.5 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 DM-MS channel monitoring procedures 40 DM c
23、hannel during initial call set-up and new call transaction by current master MS . 40 DM channel during call set-up with presence check . 41 DM channel in occupation during a circuit mode call . 41 DM channel in reservation during a circuit mode call 41 DM channel in occupation during an SDS call . 4
24、1 DM channel usage during pre-emption signalling 42 Transmission of layer 3 messages by DM-MAC 42 Transmission of C-plane messages by DM-MAC . 42 Transmission of U-plane messages by DM-MAC 42 Transmission of layer 2 messages generated by DM-MAC . 43 DM-MAC repeat transmissions 43 DM-MAC frame countd
25、own procedure 43 Use of timers . 43 DM channel usage during timing change request signalling . 42 General DM-MAC procedures . 43 Linearization . 43 Fragmentation . 44 Fill bit indication . 44 Selection of pseudo address 44 Slot flag indication 44 Requests bitmap 44 DM aspects of dual watch operation
26、 . 44 Model of operation 44 Dual watch synchronization 45 Dual watch precedence rules . 46 Air interface encryption 46 Channel A or B operation . 46 Sending short data as a transaction within a circuit mode call 46 SDS time remaining 46 8.5.1 8.5.2 8.5.2.1 8.5.2.1.1 8.5.2.1.2 8.5.2.2 8.5.3 8.5.4 8.5
27、.4.1 8.5.4.2 8.5.5 8.5.6 8.5.6.1 8.5.6.2 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 8.5.7.3.5 8.5.7.3.6 . Timing change procedure 46 Timing change at changeover or pre-emption . 47 8.5 MAC procedures for transfer of signalling messag
28、es . 47 Formation of MAC PDU 47 Addressing 47 Transmission of message 47 Addressing in synchronization burst . 47 Addressing in normal burst 48 Reception of message 48 Use of air interface encryption 48 Fragmentation and reconstruction . 49 Fragmentation . 49 Reconstruction 50 Fill bit addition and
29、deletion . 50 Transmission of message 51 Transmission and reception of messages by layer 2 . 50 Reception of message 52 Random access protocol . 53 Introduction . 53 Procedures for master DM-MS . 54 Indicating frames available for requests 54 Monitoring frames available for requests 54 Procedures fo
30、r requesting DM-MS . 55 Response to pre-emption or changeover request . 54 Response to timing change request 55 Preparing for random access 55 First transmission of request 55 Valid access slots . 55 Waiting for response 56 Abandoning random access attempt 56 MAC nrocediires in traffic mode 56 Subse
31、quent transmission of request . 56 r. 8.6 . _._ ETSI 6 ETSI TS 1 O0 396-4 V1.2.1 (2000-1 O) 8.6.1 8.6.2 8.6.3 8.6.3.1 8.6.3.1.1 8.6.3.1.2 8.6.3.2 8.6.3.2.1 8.6.3.2.2 8.6.3.3 8.6.3.4 8.6.3.4.1 8.6.3.4.2 8.6.4 8.6.5 Introduction . 56 Change of U-plane mode 57 Call set-up without presence check . 57 Ou
32、tgoing call . 57 Incoming call . 57 Call set-up with presence check 57 Outgoing call . 57 Incoming call . 58 Late entry 58 End of traffic transmission 58 Master DM-MS . 58 Slave DM-MS 58 Exchange of information at the DMD-SAP 58 Stealing from circuit mode capacity . 58 Criteria for transmission and
33、reception of traffic 56 9 9.1 Introduction 58 9.1.1 Functions of lower MAC 59 9.1.2 Functions of upper MAC 59 9.2 Interface between lower and upper MAC . 59 9.3 Basic capabilities of the DM-REP physical layer . 60 9.4 Usage of DM channel . 60 DM-REP layer 2 protocol for a type 1 DM-REP . 58 9.4.1 9.
34、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 9.4.2.3 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 9.4.5.2 9.4.5.3 9.4.6 9.5 9.5.1 9.5.1.1 9.5.1.1.1 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 u DM
35、-REP operation . 60 Channel structure 60 Channel synchronization . 60 DM-REP states . 61 DM-REP state definitions . 61 DM-REP channel surveillance procedures 61 DM-REP channel surveillance when idle on a free channel (Le . in state i) 62 DM-REP channel surveillance when idle on a busy channel (Le .
36、in state 2) . 62 DM-REP channel surveillance when idle at DM-MS call set-up 63 DM-REP channel surveillance when active during a call . 63 Criteria for changing DM-REP state . 64 DM channel during call set-up with presence check . 65 DM channel in occupation during a circuit mode call . 65 DM channel
37、 in reservation during a circuit mode call 66 DM channel in occupation during an SDS call . 66 DM channel following pre-emption or changeover acceptance 67 DM channel following timing change announcement . 67 Channel free 67 Channel in occupation . 68 Channel in reservation . 69 DM-REP linearization
38、 69 DM-REP procedures for re-transmission of signalling messages 70 Re-transmission of master DM-MS signalling messages received in a DSB 70 DM-REP channel monitoring procedures . 64 DM-REP presence signal 67 Re-transmission of signalling messages received from the master DM-MS 70 General procedures
39、 70 Re-transmission of DM-SETUP or DM-SETUP PRES message 71 Re-transmission of DM-SDS DATA or DM-SDS UDATA message . 71 Re-transmission of other messages in a DSB when not using multi-slot regeneration 72 regeneration . 72 Call transaction without multi-slot regeneration . 73 Re-transmission of sign
40、alling messages received from a slave DM-MS 74 General procedures 74 Re-transmission of other messages in a DSB during traffic transmission with multi-slot Re-transmission of master DM-MS signalling messages received in a DNB . 72 Call transaction with multi-slot regeneration . 73 Regeneration of ad
41、ditional repetitions on the slave link . 74 Re-transmission of response messages from a slave DM-MS . 75 ETSI 7 ETSI TS 1 O0 396-4 V1.2.1 (2000-1 O) 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 9.6.1 9.6.2 9.6.2.1 9.6.2.1.1 9.6.2.1.2 9.6.2.2 9.6.2.3 9.6.3 9.6.3.1 9.6.3.2 9.6.3.2
42、.1 9.6.3.2.2 Re-transmission of random access request 75 Frame countdown procedure . 76 Fill bit addition and deletion . 76 Air interface encryption 76 Timing change procedure 77 DM-REP procedures in traffic mode 77 DM-REP signalling mechanisms 76 Null PDU 76 Random access procedures for DM-REP 77 I
43、ntroduction . 77 Change of U-plane mode 78 Set-up without presence check 78 Switching into traffic mode . 78 Link establishment failure . 78 End of traffic transmission 79 DM-REP traffic operation when active in traffic mode 79 Reception of TCH and STCH on the master link 79 Re-transmission of TCH a
44、nd STCH on the slave link . 80 Set-up with presence check . 78 Call transaction without multi-slot regeneration . 80 Call transaction with multi-slot regeneration . 80 10 PDU descriptions 81 Layer 2 PDUs sent in DSB . 81 Layer 2 PDUs sent in DNB 83 10.1 10.1.1 DMAC-SYNC PDU . 81 10.1.2 DPRES-SYNC PD
45、U . 81 10.2 10.3 Layer 2 information element coding 83 10.3.1 Addressing for URT = 00102 83 10.3.2 Addressing for URT = 0O1l2 83 10.3.3 10.3.4 Addressing for URT = 01102 83 10.3.5 Channel state . 84 10.3.7 Maximum DM-MS power class 84 10.3.8 M-DMO flag . 85 10.3.9 MNI of DM-REP 85 10.3.10 Number of
46、validity time units . 85 10.3.11 Presence signal dual watch synchronization flag 85 10.3.12 Repeater operating modes . 86 10.3.13 Spacing of uplink 86 10.3.14 Two-frequency repeater flag . 86 10.3.15 Usage restriction type (URT) 87 10.3.16 Validity time unit 87 10.3.17 10.3.18 10.4 Messages generate
47、d by layer 2 . 88 10.5 Layer 3 PDUs . 88 10.6 10.6.1 10.6.2 Two-frequency call flag 91 10.7 DM-SDU elements coding . 91 11 Radio aspects of DM-MS for operation with a type 1 DM-REP 91 11.1 Introduction 91 11.2 Modulation . 91 11.3 Radio transmission and reception . 92 11.3.1 Introduction . 92 11.3.2
48、 Frequency bands and channel arrangement 92 11.3.3 Reference test planes 92 11.3.4 Transmitter characteristics 92 11.3.5 Receiver characteristics 92 Addressing for URT = 01002 or 0101 83 10.3.6 Channel usage . 84 Value of DT254 87 Values of DN232 and DN233 . 88 Message dependent elements coding 89 D
49、ual watch synchronization flag 90 ETSI 8 ETSI TS 1 O0 396-4 V1.2.1 (2000-1 O) 11.3.6 Transmitter/receiver performance . 92 11.4 Radio sub-system synchronization . 92 11.4.1 Introduction . 92 1 1.4.2 Definitions and general requirements for synchronization of DM-MSs . 92 11.4.3 Timebase counters 93 1 1.4.4 Requirements for the frequency reference source of DM mobiles . 93 1 1.4.5 Requirements for the synchronization of a slave DM mobile . 93 11.4.6 Synchronization requirements for a master MS operating on channel B in frequency efficient mode . 94 11.5 Channel coding and scrambling .
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