ETSI TS 103 357-2 V2.1.1 (2024-06)

Short Range Devices; Low Throughput Networks (LTN); Protocols for radio interface A; Part 2: TS-UNB protocol

RTS/ERM-TG28-571

General Information

• Status: Not Published
• Technical Committee: ERM TG28 - ERM Generic SRD's
• Current Stage: 12 - Completion
• Due Date: 18-Jul-2024
• Completion Date: 25-Jun-2024

Standards Content (Sample)

TECHNICAL SPECIFICATION
Short Range Devices;
Low Throughput Networks (LTN);
Protocols for radio interface A;
Part 2: TS-UNB protocol
2 ETSI TS 103 357-2 V2.1.1 (2024-06)

Reference
RTS/ERM-TG28-571
Keywords
interface, LTN, OSSS, protocol, radio, SRD, UNB

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ETSI
3 ETSI TS 103 357-2 V2.1.1 (2024-06)
Contents
Intellectual Property Rights . 9
Foreword . 9
Modal verbs terminology . 9
1 Scope . 10
2 References . 10
2.1 Normative references . 10
2.2 Informative references . 11
3 Definitions of terms, symbols, and abbreviations . 12
3.1 Terms . 12
3.2 Symbols . 12
3.3 Abbreviations . 13
4 TS-UNB protocol description . 15
4.1 TS-UNB in the LTN protocol families . 15
4.2 TS-UNB overview . 15
4.3 Modes of operation . 20
4.4 Drawing and writing conventions . 22
4.5 Link Layer . 23
4.5.1 Link Layer overview . 23
4.5.2 Link Layer formats . 23
4.5.2.1 Link Layer Protocol Data Unit (LPDU) . 23
4.5.2.2 Control Segments . 24
4.5.2.2.1 Overview . 24
4.5.2.2.2 Attach Request. 24
4.5.2.2.3 Attach Accept . 25
4.5.2.2.4 Detach Request . 25
4.5.2.2.5 Detach Accept . 25
4.5.2.2.6 DLRX Status Query . 26
4.5.2.2.7 DLRX Status Response . 26
4.5.2.2.8 DLRX Extended Status Query . 26
4.5.2.2.9 DLRX Extended Status Response . 27
4.5.2.2.10 Link Adaptation Request . 27
4.5.2.2.11 Link Adaptation Confirm . 27
4.5.2.2.12 Sync Request . 27
4.5.2.2.13 Sync Info . 28
4.5.2.2.14 Resync Request . 30
4.5.2.2.15 Resync Info . 30
4.5.2.2.16 Desync Request . 30
4.5.2.2.17 Desync Accept . 31
4.5.2.2.18 Sync System Adaptation Notify . 31
4.5.2.2.19 Sync Request Trigger . 31
4.5.2.2.20 Sync Adaptation Request. 31
4.5.2.2.21 Sync Adaptation Confirm . 32
4.5.2.2.22 DLB Data Ack . 32
4.5.2.2.23 DLC Data Ack . 32
4.5.2.2.24 Group Assign Request . 33
4.5.2.2.25 Group Assign Confirm . 33
4.5.2.2.26 Group Dismiss Request . 33
4.5.2.2.27 Group Dismiss Confirm . 33
4.5.2.2.28 Fragment Info . 34
4.5.2.2.29 DLRX Certification Status Query . 34
4.5.2.2.30 DLRX Certification Status Response . 34
4.5.2.2.31 DLRX Class A Statistic Query . 35
4.5.2.2.32 DLRX Class A Statistic Response . 36
4.5.2.2.33 DLRX Class B Statistic Query . 36
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4 ETSI TS 103 357-2 V2.1.1 (2024-06)
4.5.2.2.34 DLRX Class B Statistic Response . 37
4.5.2.2.35 DLRX Class C Statistic Query . 38
4.5.2.2.36 DLRX Class C Statistic Response . 38
4.5.2.3 End-point Info Field . 39
4.5.3 Link Layer procedures . 39
4.5.3.1 End-point attachment procedure . 39
4.5.3.1.1 Introduction . 39
4.5.3.1.2 End-point configuration . 40
4.5.3.1.3 Class Z end-point attachment . 40
4.5.3.1.4 Class A end-point attachment . 41
4.5.3.2 End-point detachment procedure . 41
4.5.3.3 End-point synchronization procedure . 42
4.5.3.4 End-point desynchronization procedure . 43
4.5.3.5 Assisted resynchronization procedure . 43
4.5.3.6 Sync System Adaptation procedure . 43
4.5.3.7 Sync Adaptation procedure . 44
4.5.3.8 DLB acknowledgement procedure . 44
4.5.3.9 DLC acknowledgement procedure . 44
4.5.3.10 Grouping procedure . 44
4.5.3.11 Simple end-point handover procedure . 45
4.5.3.12 Fragmentation procedure . 45
4.6 MAC Layer . 46
4.6.1 Overview of MAC layer and MAC formats . 46
4.6.2 Fixed-MAC mode formats in UL . 46
4.6.2.1 Overview . 46
4.6.2.2 UL-MPDU format description . 47
4.6.2.3 MAC Header field in UL . 47
4.6.2.4 Address field in UL . 48
4.6.2.5 MPDUCNT field in UL . 48
4.6.2.6 MPF field in UL . 48
4.6.2.7 MAC Payload field in UL . 48
4.6.2.8 SIGN field in UL . 48
4.6.3 Fixed-MAC mode formats in DL . 48
4.6.3.1 DL_MPDU format description. 48
4.6.3.2 MAC Header field in DL . 49
4.6.3.3 MPF field in DL . 49
4.6.3.4 MAC Payload field in DL . 49
4.6.3.5 SIGN field in DL . 49
4.6.3.6 DLB mode MPDU formats . 49
4.6.3.6.1 Introduction . 49
4.6.3.6.2 Sync Frame MPDU format . 50
4.6.3.6.3 Single-stage Beacon Core MPDU format . 50
4.6.3.6.4 Two-stage Beacon Core MPDU format . 50
4.6.3.6.5 Beacon Extension MPDU format . 51
4.6.3.6.6 DLB_Data frame MPDU format . 51
4.6.3.7 DLC mode MPDU formats . 51
4.6.3.7.1 DLC frame MPDU format . 51
4.6.4 Variable MAC mode formats. 52
4.6.4.1 Overview . 52
4.6.4.2 MPDU format in variable MAC mode . 52
4.6.4.3 Details on Variable MAC-TYPE 0x00 (WMBUS) . 52
4.6.4.3.1 Overview . 52
4.6.4.3.2 MAC format in uplink (WMBUS) . 52
4.6.4.3.3 MAC format in downlink (WMBUS) . 53
4.6.4.3.4 MAC functions (WMBUS) . 53
4.6.4.3.5 MAC procedures (WMBUS) . 53
4.6.5 Fixed-MAC functions in UL . 53
4.6.5.1 Addressing function in UL . 53
4.6.5.2 Packet Counter function in UL. 53
4.6.5.3 Attachment Counter function in UL . 54
4.6.5.4 MAC Payload encryption function in UL . 54
4.6.5.5 Authentication function in UL . 54
ETSI
5 ETSI TS 103 357-2 V2.1.1 (2024-06)
4.6.6 Fixed-MAC functions in DL . 54
4.6.6.1 Addressing function in a DLA transmission . 54
4.6.6.2 Addressing function in a DLB transmission . 54
4.6.6.2.1 Pre-addressing Info for DLB_Data frame . 54
4.6.6.2.2 Complete addressing for DLB_Data frames . 55
4.6.6.2.3 Implicit addressing for DLB_Data frames. 55
4.6.6.3 Addressing function in a DLC transmission . 56
4.6.6.4 Packet Counter function in DLA . 56
4.6.6.5 MAC payload encryption function in DL . 56
4.6.6.5.1 MAC Payload encryption function in DLA . 56
4.6.6.5.2 MAC payload encryption function in DLB . 56
4.6.6.5.3 MAC payload encryption function in DLC . 56
4.6.6.5.4 MPAI encryption function in DLC . 57
4.6.6.6 Authentication function in DL . 57
4.6.6.6.1 Authentication function in DLA . 57
4.6.6.6.2 Authentication function in DLB . 57
4.6.6.6.3 Authentication function in DLC . 57
4.6.6.6.4 Authentication function for Sync Frame . 58
4.6.7 Common Fixed-MAC functions . 58
4.6.7.1 Network level encryption function . 58
4.6.7.2 CMAC generation function . 59
4.6.8 MAC procedures . 60
4.6.8.1 Introduction to MAC procedure section . 60
4.6.8.2 EP-triggered downlink transmission procedure (DLA). 61
4.6.8.3 Uplink message acknowledgement procedure . 62
4.6.8.4 Downlink message acknowledgment procedure (in DLA mode) . 62
4.6.8.5 Synchronization procedures for scheduled downlink transmission mode (DLB) . 62
4.6.8.5.1 Introduction . 62
4.6.8.5.2 Time synchronization to DLB mode . 63
4.6.8.5.3 Frequency offset correction procedure . 63
4.6.8.5.4 Stand-alone Resynchronization procedure . 64
4.7 PHY Layer. 64
4.7.1 PHY formats in UL . 64
4.7.1.1 Overview in uplink . 64
4.7.1.2 PHY Payload format in UL . 64
4.7.1.2.1 Introduction . 64
4.7.1.2.2 Header_CRC field in UL . 65
4.7.1.2.3 Payload CRC field in UL. 65
4.7.1.2.4 Packet Size Indicator (PSI) in UL . 65
4.7.1.2.5 PHY Service Data Unit (PSDU) in UL . 65
4.7.1.2.6 MMode field in UL . 65
4.7.1.3 Radio Frame formats in UL . 65
4.7.1.3.1 Overview . 65
4.7.1.3.2 Core Frame format in UL . 65
4.7.1.3.3 Extension Frame format in UL . 66
4.7.1.4 Radio-burst formats in UL . 66
4.7.1.4.1 Burst Data Unit (BDU) in UL . 66
4.7.1.4.2 Sync Burst Data Unit (SBDU) in UL . 66
4.7.2 PHY formats in DL . 67
4.7.2.1 Overview in downlink . 67
4.7.2.2 PHY Payload format in DL . 68
4.7.2.3 DLA Core (DLAC) block format (no timing flexibility) . 68
4.7.2.4 DLA Core (DLAC) block format (timing flexibility activated) . 69
4.7.2.5 DLA Core (DLAC) block format for HDR burst structure . 71
4.7.2.6 Data Extension block format for HDR burst structure . 72
4.7.2.7 DLB Sync frame (staircase) format . 72
4.7.2.8 DLB Beacon Core (BC) block format . 73
4.7.2.9 DLB Beacon Extension (BE) block format . 73
4.7.2.10 Data Extension block format . 73
4.7.2.11 DLC Core Block format . 74
4.7.2.12 DLC Core Block format for HDR burst structure . 74
4.7.2.13 Radio-burst formats in DL . 75
ETSI
6 ETSI TS 103 357-2 V2.1.1 (2024-06)
4.7.2.13.1 Introduction . 75
4.7.2.13.2 S_BDU format in DLA . 75
4.7.2.13.3 C_BDU format in DL . 76
4.7.2.13.4 E_BDU format in DL . 76
4.7.2.13.5 SB_BDU format in DL (deprecated) . 76
4.7.2.13.6 H_BDU format in DL for HDR burst structure . 77
4.7.2.14 Radio frame formats in DLA mode . 78
4.7.2.14.1 Core frame format in DLA mode . 78
4.7.2.14.2 Extension frame format in DLA mode . 79
4.7.2.14.3 DLA Frame format for HDR burst structure . 79
4.7.2.15 Radio frame formats in DLB mode . 80
4.7.2.15.1 Overview of a DLB frame . 80
4.7.2.15.2 Physical Resource Blocks and Resource Elements definitions . 81
4.7.2.15.3 Density of PRBs . 81
4.7.2.16 Radio frame formats in DLC mode . 82
4.7.2.17 Radio frame formats in DL-SB mode (deprecated) . 82
4.7.3 PHY functions in UL . 82
4.7.3.1 Modulation in UL . 82
4.7.3.2 Symbol mapping in UL . 82
4.7.3.2.1 Overview . 82
4.7.3.2.2 Symbol rates in uplink . 82
4.7.3.3 Data Whitening function in UL . 82
4.7.3.4 CRC functions in UL . 83
4.7.3.4.1 Payload CRC in UL . 83
4.7.3.4.2 Header CRC in UL . 83
4.7.3.5 Forward Error Correction function in UL . 83
4.7.3.6 Interleaving function in UL . 83
4.7.3.6.1 Introduction . 83
4.7.3.6.2 Bit assignment to sub-packets . 84
4.7.3.6.3 Bit placing within Burst Data Unit . 85
4.7.4 PHY functions in DL . 85
4.7.4.1 Block slicing . 85
4.7.4.1.1 Overview . 85
4.7.4.1.2 Block slicing in DLA . 86
4.7.4.1.3 Block slicing in DLC . 86
4.7.4.1.4 Block slicing in DLA for high data rate burst structure . 86
4.7.4.1.5 Block slicing in DLC for high data rate burst structure . 87
4.7.4.2 CRC function in DL . 87
4.7.4.2.1 Core frame case . 87
4.7.4.2.2 Extension frame . 87
4.7.4.2.3 Beacon core frame case . 87
4.7.4.2.4 Beacon extension frame case . 87
4.7.4.2.5 DLB_Data frame case . 87
4.7.4.2.6 DLC core and extension frame case . 88
4.7.4.3 Data Whitening function in DL . 88
4.7.4.3.1 Core block case. 88
4.7.4.3.2 Data Extension block case . 88
4.7.4.3.3 Beacon core block case. 88
4.7.4.3.4 Beacon extension block case . 88
4.7.4.4 Forward Error Correction function in DL . 88
4.7.4.4.1 Core frame case in DLA mode . 88
4.7.4.4.2 Extension frame case in DLA mode . 88
4.7.4.4.3 Beacon core block case. 88
4.7.4.4.4 Beacon extension block case . 88
4.7.4.4.5 DE_Block of a DLB frame . 89
4.7.4.4.6 DL-SB mode case (deprecated) . 89
4.7.4.4.7 DE Blocks of a DLC frame . 89
4.7.4.5 Interleaving function in DL . 89
4.7.4.5.1 Core frame case in DLA mode . 89
4.7.4.5.2 Extension frame case in DLA mode . 90
4.7.4.5.3 Sync data frame interleaving . 91
4.7.4.5.4 Data Extension block interleaving for HDR burst structure . 91
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7 ETSI TS 103 357-2 V2.1.1 (2024-06)
4.7.4.5.5 Beacon core block interleaving . 91
4.7.4.5.6 Beacon extension block interleaving . 91
4.7.4.5.7 Data Extension block interleaving of a DLB frame. 91
4.7.4.5.8 Data Extension block interleaving of a DLC frame. 92
4.7.4.5.9 Data Extension block interleaving for DLC with HDR burst structure . 92
4.7.4.5.10 DL-SB Mode (deprecated) . 93
4.7.4.6 Modulation in downlink . 93
4.7.4.6.1 DLA, DLB, and DLC modes . 93
4.7.4.6.2 Modulation in DL-SB mode (deprecated) . 93
4.7.4.7 Symbol mapping in downlink . 93
4.7.4.7.1 Symbol mapping in DLA, DLB, and DLC modes . 93
4.7.4.7.2 Symbol mapping in DL-SB mode (deprecated) . 93
4.7.4.8 Symbol rates in DLA, DLB, and DLC modes. 93
4.7.5 Common PHY functions . 93
4.7.5.1 Introduction . 93
4.7.5.2 CRC. 93
4.7.5.3 FEC . 94
4.7.5.4 FEC for staircase . 94
4.7.6 PHY procedures . 95
4.7.6.1 TSMA schemes for ULZ and DLA transmission mode . 95
4.7.6.1.1 Overview on ULZ and DLA . 95
4.7.6.1.2 Frame Repetition in UL . 97
4.7.6.1.3 Frame repetition in DL . 98
4.7.6.1.4 Radio-burst timing in TSMA patterns . 98
4.7.6.1.5 Time and frequency random offsets . 99
4.7.6.1.6 Uplink TSMA pattern for core frame . 101
4.7.6.1.7 Uplink TSMA pattern for extension frame . 105
4.7.6.1.8 Specific case of TSMA pattern for DL-SB mode (deprecated) . 105
4.7.6.1.9 Uplink TSMA Pattern for ULP8 symbol rate . 105
4.7.6.1.10 Downlink TSMA patterns for normal radio-bursts . 108
4.7.6.1.11 Timing flexibility procedure .
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