ETSI TS 136 305 V15.4.0 (2019-07)

TECHNICAL SPECIFICATION
LTE;
Evolved Universal Terrestrial
Radio Access Network (E-UTRAN);
Stage 2 functional specification of User Equipment (UE)
positioning in E-UTRAN
(3GPP TS 36.305 version 15.4.0 Release 15)

3GPP TS 36.305 version 15.4.0 Release 15 1 ETSI TS 136 305 V15.4.0 (2019-07)

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RTS/TSGR-0236305vf40
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ETSI
3GPP TS 36.305 version 15.4.0 Release 15 2 ETSI TS 136 305 V15.4.0 (2019-07)
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ETSI
3GPP TS 36.305 version 15.4.0 Release 15 3 ETSI TS 136 305 V15.4.0 (2019-07)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 8
1 Scope . 9
2 References . 9
3 Definitions and abbreviations . 10
3.1 Definitions . 10
3.2 Abbreviations . 11
4 Main concepts and requirements . 12
4.1 Assumptions and Generalities . 12
4.2 Role of UE Positioning Methods . 13
4.3 Standard UE Positioning Methods . 14
4.3.1 Network-assisted GNSS Methods . 14
4.3.2 Downlink positioning . 15
4.3.3 Enhanced Cell ID Methods . 15
4.3.4 Uplink positioning . 15
4.3.5 Barometric pressure sensor positioning . 15
4.3.6 WLAN positioning . 15
4.3.7 Bluetooth positioning . 16
4.3.8 TBS positioning . 16
4.3.9 Motion sensor positioning . 16
5 E-UTRAN UE Positioning Architecture . 16
5.1 UE Positioning Operations . 17
5.2 E-UTRAN Positioning Operations . 19
5.2.1 Downlink Position Method Support . 19
5.2.2 Uplink Position Method Support . 19
5.2.3 Assistance Information Broadcast Support . 19
5.3 Functional Description of Elements Related to UE Positioning in E-UTRAN . 19
5.3.1 User Equipment (UE) . 19
5.3.2 eNode B . 20
5.3.3 Evolved Serving Mobile Location Centre (E-SMLC) . 20
5.3.4 Location Measurement Unit (LMU) . 20
6 Signalling protocols and interfaces . 21
6.1 Network interfaces supporting positioning operations . 21
6.1.1 General LCS control plane architecture . 21
6.1.2 LTE-Uu interface . 21
6.1.3 S1-MME interface . 21
6.1.4 SLs interface . 21
6.1.5 SLm interface . 21
6.2 UE-terminated protocols . 21
6.2.1 LTE Positioning Protocol (LPP) . 21
6.2.2 Radio Resource Control (RRC) . 22
6.3 eNB-terminated protocols . 23
6.3.1 LTE Positioning Protocol Annex (LPPa). 23
6.3.2 S1 Application Protocol (S1-AP) . 23
6.4 Signalling between an E-SMLC and UE . 23
6.4.1 Protocol Layering . 23
6.4.2 LPP PDU Transfer . 23
6.5 Signalling between an E-SMLC and eNode B . 24
6.5.1 Protocol Layering . 24
6.5.2 LPPa PDU Transfer for UE Positioning . 25
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6.5.3 LPPa PDU Transfer for Positioning Support . 26
6.5.4 LPPa PDU Transfer for Assistance Information Broadcast . 26
6.6 LMU-terminated protocols . 28
6.6.1 SLm Application Protocol (SLmAP) . 28
6.7 Signalling between an E-SMLC and LMU . 28
6.7.1 Protocol Layering . 28
7 General E-UTRAN UE Positioning procedures . 28
7.1 General LPP procedures for UE Positioning . 28
7.1.1 LPP Procedures . 28
7.1.2 Positioning procedures . 29
7.1.2.1 Capability transfer . 29
7.1.2.2 Assistance data transfer . 30
7.1.2.3 Location information transfer. 30
7.1.2.4 Multiple transactions . 31
7.1.2.5 Sequence of Procedures . 32
7.1.2.6 Error handling . 32
7.1.2.7 Abort . 33
7.1.3 UE positioning measurements in idle state for NB-IoT . 33
7.2 General LPPa Procedures for UE Positioning . 35
7.2.1 LPPa Procedures . 35
7.2.2 LPPa transaction types . 35
7.2.2.1 Location information transfer. 35
7.3 Service Layer Support using combined LPP and LPPa Procedures . 36
7.3.1 NI-LR and MT-LR Service Support . 36
7.3.2 MO-LR Service Support . 37
7.4 General SLmAP Procedures for UE Positioning . 38
7.4.1 SLmAP Procedures . 38
7.4.1.1 Measurement request . 38
7.4.1.2 Measurement Update . 38
7.4.1.3 Measurement Abort . 39
7.5 Service Layer Support using combined SLmAP and LPPa Procedures . 39
7.5.1 NI-LR and MT-LR Service Support . 39
7.5.2 MO-LR Service Support . 40
7.6 Procedures for Broadcast of Assistance Data . 41
7.6.1 General . 41
7.6.2 Broadcast Procedures . 41
8 Positioning methods and Supporting Procedures . 43
8.1 GNSS positioning methods . 43
8.1.1 General . 43
8.1.2 Information to be transferred between E-UTRAN Elements . 44
8.1.2.1 Information that may be transferred from the E-SMLC to UE . 44
8.1.2.1.1 Reference Time . 44
8.1.2.1.2 Reference Location . 45
8.1.2.1.3 Ionospheric Models . 45
8.1.2.1.4 Earth Orientation Parameters . 45
8.1.2.1.5 GNSS-GNSS Time Offsets . 45
8.1.2.1.6 Differential GNSS Corrections . 45
8.1.2.1.7 Ephemeris and Clock Models . 45
8.1.2.1.8 Real-Time Integrity . 45
8.1.2.1.9 Data Bit Assistance . 45
8.1.2.1.10 Acquisition Assistance . 45
8.1.2.1.11 Almanac. 46
8.1.2.1.12 UTC Models . 46
8.1.2.1.13 RTK Reference Station Information . 46
8.1.2.1.14 RTK Auxiliary Station Data . 46
8.1.2.1.15 RTK Observations . 46
8.1.2.1.16 RTK Common Observation Information . 46
8.1.2.1.17 GLONASS RTK Bias Information . 46
8.1.2.1.18 RTK MAC Correction Differences . 47
8.1.2.1.19 RTK Residuals . 47
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8.1.2.1.20 RTK FKP Gradients . 47
8.1.2.1.21 SSR Orbit Corrections . 47
8.1.2.1.22 SSR Clock Corrections . 47
8.1.2.1.23 SSR Code Bias . 47
8.1.2.1a Recommendations for grouping of assistance data to support different RTK service levels . 47
8.1.2.2 Information that may be transferred from the UE to the E-SMLC. 49
8.1.2.2.1 GNSS Measurement Information . 50
8.1.2.2.1.1 UE-based mode . 50
8.1.2.2.1.2 UE-assisted mode . 50
8.1.2.2.2 Additional Non-GNSS Related Information. 50
8.1.3 Assisted-GNSS Positioning Procedures. 51
8.1.3.1 Capability Transfer Procedure . 51
8.1.3.1.1 Void . 51
8.1.3.2 Assistance Data Transfer Procedure. 51
8.1.3.2.1 E-SMLC initiated Assistance Data Delivery . 51
8.1.3.2.1a E-SMLC initiated Periodic Assistance Data Delivery . 51
8.1.3.2.2 UE initiated Assistance Data Transfer . 52
8.1.3.2.2a UE initiated Periodic Assistance Data Transfer . 53
8.1.3.3 Location Information Transfer Procedure . 54
8.1.3.3.1 E-SMLC initiated Location Information Transfer Procedure . 54
8.1.3.3.2 UE-initiated Location Information Delivery Procedure . 54
8.2 Downlink positioning method . 55
8.2.1 General . 55
8.2.2 Transferred information . 55
8.2.2.1 Assistance Data that may be transferred from the E-SMLC to UE . 55
8.2.2.2 Assistance Data that may be transferred from the eNodeB to E-SMLC . 55
8.2.2.3 Location Information that may be transferred from the UE to E-SMLC . 56
8.2.3 Downlink Positioning Procedures . 56
8.2.3.1 Capability Transfer Procedure . 56
8.2.3.1.1 Void . 56
8.2.3.2 Assistance Data Transfer Procedure. 56
8.2.3.2.1 Assistance Data Transfer between E-SMLC and UE . 56
8.2.3.2.1.1 E-SMLC-initiated assistance data delivery. 56
8.2.3.2.1.2 UE-initiated assistance data transfer . 57
8.2.3.2.2 Assistance Data Delivery between E-SMLC and eNodeB . 57
8.2.3.2.2.1 Void . 57
8.2.3.2.2.2 E-SMLC-initiated assistance data delivery to the E-SMLC . 57
8.2.3.3 Location Information Transfer Procedure . 58
8.2.3.3.1 E-SMLC-initiated Location Information Transfer . 58
8.2.3.3.2 UE-initiated Location Information Delivery procedure . 58
8.3 Enhanced cell ID positioning methods . 59
8.3.1 General . 59
8.3.2 Information to be transferred between E-UTRAN Elements . 59
8.3.2.1 Information that may be transferred from the E-SMLC to UE . 59
8.3.2.2 Information that may be transferred from the UE to E-SMLC . 60
8.3.2.3 Information that may be transferred from the eNodeB to E-SMLC . 60
8.3.3 Downlink E-CID Positioning Procedures . 60
8.3.3.1 Capability Transfer Procedure . 60
8.3.3.1.1 Void . 61
8.3.3.2 Assistance Data Delivery Procedure . 61
8.3.3.3 Location Information Transfer Procedure . 61
8.3.3.3.1 E-SMLC-initiated Location Information Transfer . 61
8.3.3.3.2 UE-initiated Location Information Delivery procedure . 61
8.3.4 Uplink E-CID Positioning Procedures . 62
8.3.4.1 Position Capability Transfer Procedure . 62
8.3.4.2 Assistance Data Delivery Procedure . 62
8.3.4.3 Position Measurement Procedure . 62
8.3.4.3.1 E-SMLC-initiated Position Measurement . 62
8.4 Downlink Supporting Procedures . 63
8.4.1 General . 63
8.4.2 Location Related Information . 63
8.4.3 Location Related Information Acquisition Procedure . 63
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8.4.3.1 On Demand Procedure . 63
8.4.3.2 Triggered Procedure . 64
8.5 Uplink positioning method . 64
8.5.1 General . 64
8.5.2 Transferred information . 65
8.5.2.1 Configuration Data that may be transferred from the eNodeB to the E-SMLC . 65
8.5.2.2 Configuration Data that may be transferred from the E-SMLC to LMU . 65
8.5.2.3 Location Information that may be transferred from the LMU to E-SMLC . 66
8.5.3 Uplink Positioning Procedures . 66
8.5.3.1 Uplink Information Request and Delivery Procedure . 66
8.5.3.2 Uplink Positioning Information Update Procedure . 67
8.6 Barometric pressure sensor positioning methods . 68
8.6.1 General . 68
8.6.2 Information to be transferred between E-UTRAN Elements . 68
8.6.2.1 Information that may be transferred from the UE to E-SMLC . 68
8.6.2.1.1 Standalone mode . 69
8.6.2.1.2 UE-assisted mode . 69
8.6.2.1.3 UE-based mode . 69
8.6.2.2 Information that may be transferred from the E-SMLC to UE . 69
8.6.2.2.1 Barometric pressure sensor assistance data . 69
8.6.3 Barometric Pressure Sensor Location Information Transfer Procedures . 69
8.6.3.1 E-SMLC initiated Location Information Transfer Procedure . 70
8.6.3.2 UE-initiated Location Information Delivery Procedure . 70
8.6.3.3 Assistance Data Transfer Procedure. 70
8.6.3.3.1 E-SMLC initiated Assistance Data Delivery . 70
8.6.3.3.2 UE initiated Assistance Data Transfer . 71
8.7 WLAN positioning methods. 72
8.7.1 General . 72
8.7.2 Information to be transferred between E-UTRAN Elements . 72
8.7.2.1 Information that may be transferred from the UE to E-SMLC . 72
8.7.2.1.1 Standalone mode . 72
8.7.2.1.2 UE-assisted mode . 73
8.7.2.1.3 UE-based mode . 73
8.7.2.2 Information that may be transferred from the E-SMLC to UE . 73
8.7.2.2.1 WLAN AP BSSID . 73
8.7.2.2.2 WLAN AP SSID . 73
8.7.2.2.3 WLAN AP Type Data . 73
8.7.2.2.4 WLAN AP Location . 73
8.7.3 WLAN Positioning Procedures . 74
8.7.3.1 Location Information Transfer Procedure . 74
8.7.3.1.1 E-SMLC initiated Location Information Transfer Procedure . 74
8.7.3.1.2 UE-initiated Location Information Delivery Procedure . 74
8.7.3.2 Assistance Data Transfer Procedure. 75
8.7.3.2.1 UE initiated Assistance Data Transfer . 75
8.8 Bluetooth positioning methods . 75
8.8.1 General . 75
8.8.2 Information to be transferred between E-UTRAN Elements . 76
8.8.2.1 Information that may be transferred from the UE to E-SMLC . 76
8.8.2.1.1 Standalone mode . 76
8.8.2.1.2 UE-assisted mode . 76
8.8.3 Bluetooth Positioning Procedures . 76
8.8.3.1 Location Information Transfer Procedure . 76
8.8.3.1.1 E-SMLC initiated Location Information Transfer Procedure . 76
8.8.3.1.2 UE-initiated Location Information Delivery Procedure . 77
8.9 TBS positioning methods . 77
8.9.1 General . 77
8.9.2 Information to be transferred between E-UTRAN Elements . 78
8.9.2.1 Information that may be transferred from the UE to E-SMLC . 78
8.9.2.1.1 Standalone mode . 78
8.9.2.1.2 UE-assisted mode . 78
8.9.2.1.3 UE-based mode . 78
8.9.2.2 Information that may be transferred from the E-SMLC to UE . 78
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8.9.2.2.1 Acquisition Assistance . 79
8.9.2.2.2 Almanac. 79
8.9.3 TBS Positioning Procedures . 79
8.9.3.1 Location Information Transfer Procedure . 79
8.9.3.1.1 E-SMLC initiated Location Information Transfer Procedure . 79
8.9.3.1.2 UE-initiated Location Information Delivery Procedure . 80
8.9.3.2 Assistance Data Transfer Procedure. 80
8.9.3.2.1 E-SMLC initiated Assistance Data Delivery . 80
8.9.3.2.2 UE initiated Assistance Data Transfer . 80
8.10 Motion sensor positioning method . 81
8.10.1 General . 81
8.10.2 Information to be transferred between E-UTRAN Elements . 81
8.10.2.1 Information that may be transferred from the UE to E-SMLC . 81
8.10.2.1.1 UE-assisted, UE-based, Standalone mode . 82
8.10.2.1.2 UE Displacement and Movement Information . 82
8.10.2.2 Information that may be transferred from the E-SMLC to the UE . 82
8.10.3 Motion Sensors Location Information Transfer Procedure . 82
8.10.3.1 E-SMLC initiated Location Information Transfer Procedure . 82
8.10.3.2 UE-initiated Location Information Delivery Procedure . 82
Annex A (informative): Definitions and Terms . 84
Annex B (informative): Use of LPP with SUPL . 85
B.1 SUPL 2.0 Positioning Methods and Positioning Protocols . 85
B.2 SUPL 2.0 and LTE Architecture . 86
B.3 LPP session procedures using SUPL . 87
B.4 Procedures combining C-plane and U-plane operations . 88
Annex C (informative): Change history . 90
History . 92

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