ETSI TS 102 490 V1.9.1 (2016-08)

ETSI TS 102 490 V1.9.1 (2016-08)






TECHNICAL SPECIFICATION
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Peer-to-Peer Digital Private Mobile Radio using FDMA
with a channel spacing of 6,25 kHz with e.r.p. of up to 500 mW

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2 ETSI TS 102 490 V1.9.1 (2016-08)



Reference
RTS/ERM-TGDMR-355
Keywords
air interface, digital, FDMA, PMR, protocol, radio
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3 ETSI TS 102 490 V1.9.1 (2016-08)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definitions, symbols and abbreviations . 9
3.1 Definitions . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Overview . 11
4.0 General . 11
4.1 Protocol architecture. 12
4.1.0 General . 12
4.1.1 Air Interface Physical Layer (layer 1). 13
4.1.2 Air Interface Data Link Layer (layer 2) . 13
4.1.3 Air Interface Call Control Layer (layer 3) . 13
4.2 FDMA Structure . 14
4.2.1 Overview of the transmission structure . 14
4.2.2 Transmission format . 14
4.2.3 Transmission sequences . 15
5 Frame coding . 17
5.1 Superframe . 17
5.2 Header frame . 18
5.3 End frame . 18
5.4 Packet data header . 18
5.5 ACK frame . 19
5.6 Frame numbering . 20
5.7 Communication mode . 20
5.8 Communication format . 20
5.9 SLD format . 20
5.9.0 General . 20
5.9.1 Slow data in the voice superframe . 21
5.9.2 Slow data field use with Type 1 or 2 data . 21
5.10 Call information . 22
5.10.0 General . 22
5.10.1 Call Information for powersave . 22
5.10.2 Call Information for Types 1 and 2 data . 22
5.10.3 Call Information for Type 3 (packet) data . 23
5.10.4 Call Information for system transactions . 24
5.10.5 Call Information for acknowledgements . 24
5.11 Header type . 24
5.12 End type . 25
5.13 ARQ . 25
5.14 Tx Wait . 25
5.15 Status . 25
5.16 Version [V] . 26
6 Synchronization . 26
6.1 Frame synchronization . 26
6.1.1 FS1 . 26
6.1.2 FS2 . 26
6.1.3 FS3 . 26
ETSI

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4 ETSI TS 102 490 V1.9.1 (2016-08)
6.1.4 FS4 . 26
6.1.5 Channel code . 27
6.1.6 Preamble . 29
7 Interleaving and FEC coding . 29
7.1 Di-bit coding . 29
7.2 CRC addition . 29
7.3 Hamming code . 29
7.4 Scrambling . 30
7.5 Interleaving. 30
7.6 FEC coding of CCH (superframe) . 31
7.7 FEC coding of HI (header information) . 32
7.8 FEC coding of END information . 32
8 Bearer services, tele-services and supplementary services . 32
8.1 Initial mode . 32
8.1.0 General . 32
8.1.1 Initial addressing . 33
8.1.1.0 General . 33
8.1.1.1 Common ID. 33
8.1.1.2 Fixed part of address . 33
8.1.2 ISF channel codes . 33
8.2 Configured mode . 33
8.2.0 General . 33
8.2.1 Call types . 34
8.2.1.1 Individual call . 34
8.2.1.2 Group call . 34
8.2.2 Addressing . 34
8.2.3 CSF channel codes . 34
8.3 Packet data. 35
8.3.1 Format . 35
8.3.2 Receiving party . 35
8.3.3 Packet frame coding. 35
8.3.4 Data frame size . 36
8.3.5 Valid data length . 36
8.3.6 Data checksum . 37
9 Channel coding process . 39
9.0 General . 39
9.1 Voice superframe . 39
9.2 Type 1 data superframe . 42
9.3 Type 2 Data superframe . 44
9.4 Type 3 (Packet) Data frame . 45
9.5 Headers . 47
9.6 End frames. 48
10 Channel access . 49
10.1 Listen Before Transmit (LBT) . 49
10.2 Hang time messages and timers . 50
10.2.1 Definition . 50
10.2.2 Action by receiving stations. 50
10.2.3 Break-in requests . 50
10.3 Call duration timers . 50
10.4 Transmit admit criteria . 50
10.4.1 General admit criteria . 50
10.4.2 ISF admit criteria . 51
10.4.3 CSF admit criteria . 51
10.5 Transmission re-tries . 51
10.6 Channel access timers and constants . 51
10.6.1 Timers . 51
10.6.2 Constants . 52
11 Powersave . 52
11.1 Transmitted format . 52
ETSI

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5 ETSI TS 102 490 V1.9.1 (2016-08)
11.2 Receive format . 53
12 Physical Layer . 53
12.1 General parameters . 53
12.1.0 General . 53
12.1.1 Frequency range . 53
12.1.2 RF carrier bandwidth . 53
12.1.3 Transmit frequency error . 53
12.1.4 Time base clock drift error . 53
12.2 Modulation . 54
12.2.1 Symbols . 54
12.2.2 4FSK generation . 54
12.2.2.0 General . 54
12.2.2.1 Deviation index . 54
12.2.2.2 Square root raised cosine filter . 55
12.2.2.3 4FSK Modulator . 56
Annex A (normative): Standard User Interface for CSF radios . 57
A.0 General . 57
A.1 Numbering and dialling plan . 57
A.1.1 Introduction to the numbering and dialling plan . 57
A.2 Subscriber mapping . 58
A.2.1 User Interface - Air Interface . 58
A.2.1.0 General . 58
A.2.1.1 Mapping for MS address space . 59
A.2.1.1.0 General . 59
A.2.1.1.1 The concept of the wildcard character . 59
A.2.1.1.2 The concept of stored parameters . 60
A.2.1.1.3 The concept of ad-hoc arrangement . 60
A.2.1.1.4 The rules for the sender . 60
A.2.1.1.5 The rules for the recipient . 60
A.2.1.1.6 Mapping of dialled strings to the AI address space . 60
A.2.1.1.6.0 General . 60
A.2.1.1.6.1 Mapping of numeric dialled strings to the AI address space . 61
A.2.2 Addresses . 62
A.2.3 Conversion rules . 62
A.2.3.1 MS addresses . 62
A.2.3.2 Limiting the length of the destination address . 62
A.2.3.3 All talkgroup address . 62
A.3 User dialling plan . 63
A.3.1 User numbering . 63
A.3.1.0 General . 63
A.3.1.1 Dialling method . 63
A.3.1.2 Call Type determination . 63
A.3.1.3 Call modifier strings . 63
A.3.2 Dialled digits to address mapping . 63
A.3.3 Storage requirements . 64
A.3.3.1 MS individual address . 64
A.3.3.2 Dialled Talkgroups . 64
A.3.3.3 All MSs . 64
A.3.3.4 Non-dialable numbers . 64
A.3.3.5 Talkgroup recognition. 64
A.3.3.5.1 All numeric talkgroups . 64
A.3.3.5.2 Talkgroups defined by wildcards . 65
A.3.3.5.3 MS receives a talkgroup call . 65
A.3.4 Dialling procedures . 65
A.3.4.
...