ETSI TS 100 392-18-4 V1.2.1 (2015-07)

ETSI TS 100 392-18-4 V1.2.1 (2015-07)






TECHNICAL SPECIFICATION
Terrestrial Trunked Radio (TETRA);
Voice plus Data (V+D) and Direct Mode Operation (DMO);
Part 18: Air interface optimized applications;
Sub-part 4: Net Assist Protocol 2 (NAP2)

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2 ETSI TS 100 392-18-4 V1.2.1 (2015-07)



Reference
RTS/TCCE-03230
Keywords
air interface, location, TETRA, V+D
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3 ETSI TS 100 392-18-4 V1.2.1 (2015-07)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 9
3 Definitions and abbreviations . 10
3.1 Definitions . 10
3.2 Abbreviations . 10
4 Net Assist Protocol . 12
4.1 General . 12
4.2 Location information protocol system architecture . 12
4.3 Net assist protocol service description . 13
4.3.1 General on services . 13
4.3.2 Services available at the NAP-SAP . 13
4.3.3 Service primitives at the NAP-SAP . 13
4.3.4 Service primitive parameters at the NAP-SAP . 14
4.3.5 State description . 14
5 Net assist protocol description . 14
5.1 Description of information elements . 14
5.1.1 General on network assistance information elements . 14
5.2 Information flows . 14
5.2.1 General on information flows . 14
5.2.2 Transport layer requirements . 15
5.2.3 Pseudo-segmentation . 15
5.2.4 NAP2 duplicate detection . 16
5.2.5 NAP2 Acknowledgement . 17
5.2.5.1 General . 17
5.2.5.2 Procedure related to acknowledgement . 17
5.2.6 NAP2 retransmission . 17
5.2.6.1 General . 17
5.2.6.2 Procedure related to Retransmission . 17
5.2.7 MS receiving network assistance . 18
5.2.8 MS receiving network assistance and sending response . 19
5.2.9 MS requesting network assistance . 19
5.2.10 MS requesting network assistance and receiving a reject . 19
5.2.11 Allocation of entities . 20
5.3 Procedures . 20
5.3.1 General on procedures . 20
5.3.2 Service availability . 20
5.3.3 Rejection of request for assistance . 20
5.3.4 Routing net assistance to specific terminal groups . 20
5.4 GNSS assistance types . 21
5.4.0 General . 21
5.4.1 GNSS Ephemeris assistance . 22
5.4.2 GNSS Almanac assistance . 22
5.4.3 GNSS Ionosphere and UTC correction assistance . 22
5.4.4 GNSS Time assistance . 22
5.4.5 Location assistance . 22
6 Net assist protocol coding requirements. 23
6.1 General . 23
6.2 Net assist protocol PDU definitions . 24
6.2.1 Net assist protocol description tables . 24
ETSI

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4 ETSI TS 100 392-18-4 V1.2.1 (2015-07)
6.2.1.0 General . 24
6.2.1.1 LPP-PDU-Definitions . 24
6.2.1.2 NAP-Message . 25
6.2.1.3 LPP-MessageBody . 26
6.2.1.4 NAP-TransactionID . 26
6.2.2 Common IEs . 26
6.2.2.0 General principle . 26
6.2.2.1 Abort . 27
6.2.2.2 Error . 27
6.2.2.3 CommonIEsRequestAssistanceData . 27
6.2.2.4 CommonIEsProvideAssistanceData . 27
6.2.2.5 CommonIEsAbort . 28
6.2.2.6 CommonIEsError . 28
6.2.2.7 RequestAssistanceData . 29
6.2.2.8 ProvideAssistanceData . 29
6.2.2.9 A-GNSS-ProvideAssistanceData . 30
6.2.2.10 GNSS-CommonAssistData . 30
6.2.2.11 GNSS-GenericAssistData . 30
6.2.3 GNSS Assistance Data Elements . 30
6.2.3.1 GNSS-ReferenceTime . 30
6.2.3.2 GNSS-SystemTime . 32
6.2.3.3 GPS-TOW-Assist . 33
6.2.3.4 NetworkTime . 33
6.2.3.5 GNSS-ReferenceLocation . 34
6.2.3.6 EllipsoidPointWithAltitudeAndUncertaintyEllipsoid . 34
6.2.3.7 GNSS-IonosphericModel . 34
6.2.3.8 KlobucharModelParameter . 35
6.2.3.9 NeQuickModelParameter . 36
6.2.3.10 GNSS-EarthOrientationParameters . 36
6.2.3.11 GNSS-TimeModelList . 37
6.2.3.12 GNSS-DifferentialCorrections . 38
6.2.3.13 GNSS-NavigationModel . 40
6.2.3.14 StandardClockModelList . 42
6.2.3.15 NAV-ClockModel . 43
6.2.3.16 CNAV-ClockModel . 44
6.2.3.17 GLONASS-ClockModel . 45
6.2.3.18 SBAS-ClockModel . 45
6.2.3.19 NavModelKeplerianSet . 46
6.2.3.20 NavModelNAV-KeplerianSet . 47
6.2.3.21 NavModelCNAV-KeplerianSet . 48
6.2.3.22 NavModel-GLONASS-ECEF . 50
6.2.3.23 NavModel-SBAS-ECEF . 51
6.2.3.24 GNSS-RealTimeIntegrity . 51
6.2.3.25 GNSS-DataBitAssistance . 52
6.2.3.26 GNSS-AcquisitionAssistance. 53
6.2.3.27 GNSS-Almanac . 56
6.2.3.28 AlmanacKeplerianSet . 57
6.2.3.29 AlmanacNAV-KeplerianSet [8] . 58
6.2.3.30 AlmanacReducedKeplerianSet . 60
6.2.3.31 AlmanacMidiAlmanacSet . 60
6.2.3.32 AlmanacGLONASS-AlmanacSet . 61
6.2.3.33 AlmanacECEF-SBAS-AlmanacSet. 62
6.2.3.34 GNSS-UTC-Model . 63
6.2.3.35 UTC-ModelSet1 . 64
6.2.3.36 UTC-ModelSet2 . 64
6.2.3.37 UTC-ModelSet3 . 65
6.2.3.38 UTC-ModelSet4 . 66
6.2.3.39 GNSS-AuxiliaryInformation . 67
6.2.4 GNSS Assistance Data Request . 68
6.2.4.1 A-GNSS-RequestAssistanceData . 68
6.2.4.2 GNSS-CommonAssistDataReq . 68
6.2.4.3 GNSS-GenericAssistDataReq . 68
ETSI

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5 ETSI TS 100 392-18-4 V1.2.1 (2015-07)
6.2.5 GNSS Assistance Data Request Elements . 69
6.2.5.1 GNSS-ReferenceTimeReq . 69
6.2.5.2 GNSS-ReferenceLocationReq . 70
6.2.5.3 GNSS-IonosphericModelReq. 70
6.2.5.4 GNSS-EarthOrientationParametersReq . 70
6.2.5.5 GNSS-TimeModelListReq . 71
6.2.5.6 GNSS-DifferentialCorrectionsReq . 71
6.2.5.7 GNSS-NavigationModelReq . 72
6.2.5.8 GNSS-RealTimeIntegrityReq . 73
6.2.5.9 GNSS-DataBitAssistanceReq . 73
6.2.5.10 GNSS-AcquisitionAssistanceReq . 74
6.2.5.11 GNSS-AlmanacReq . 74
6.2.5.12 GNSS-UTC-ModelReq . 75
6.2.5.13 GNSS-AuxiliaryInformationReq . 76
6.2.6 GNSS Error Elements . 76
6.2.6.1 A-GNSS-Error . 76
6.2.6.2 GNSS-LocationServerErrorCauses . 76
6.2.6.3 GNSS-TargetDeviceErrorCauses . 76
6.2.7 Common GNSS Information Elements. 77
6.2.7.1 GNSS-ID . 77
6.2.7.2 GNSS-ID-Bitmap . 77
6.2.7.3 GNSS-SignalID . 77
6.2.7.4 GNSS-SignalIDs . 78
6.2.7.5 SBAS-ID . 79
6.2.7.6 SBAS-IDs . 79
6.2.7.7 SV-ID . 79
6.2.7.8 EPDU-Sequence . 80
6.2.8 TETRA Network related IEs . 80
6.2.8.0 Guiding principle . 80
6.2.8.1 Tetra Local Area and Mobile Network Identifier . 81
6.2.8.2 Net assist group address . 81
6.2.8.3 CellGlobalIdTETRA . 81
6.2.8.4 Result code . 82
6.2.8.5 Net assist type . 82
6.2.8.6 Retry interval. 83
Annex A (informative): Change Requests . 84
History . 85

ETSI

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6 ETSI TS 100 392-18-4 V1.2.1 (2015-07)
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 000 314: "Intellectual Property 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 (http://ipr.etsi.org).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee TETRA and Critical
Communications Evolution (TCCE).
The present document is part 18, sub-part 4 of a multi-part deliverable covering the Voice plus Data (V+D), as
identified below:
ETSI EN 300 392-1: "General network design";
ETSI EN 300 392-2: "Air Interface (AI)";
ETSI EN 300 392-3: "Interworking at the Inter-System Interface (ISI)";
ETSI ETS 300 392-4: "Gateways basic operation";
ETSI TS 100 392-5: "Peripheral Equipment Interface (PEI)";
ETSI TS 100 392-7: "Security";
ETSI EN 300 392-9: "General requirements for supplementary services";
ETSI EN 300 392-10: "Supplementary services stage 1";
ETSI TS 100 392-11: "Supplementary services stage 2";
ETSI EN 300 392-12: "Supplementary services stage 3";
ETSI ETS 300 392-13: "SDL model of the Air Interface (AI)";
ETSI ETS 300 392-14: "Protocol Implementation Conformance Statement (PICS) proforma specification";
ETSI TS 100 392-15: "TETRA frequency bands, duplex spacings and channel numbering";
ETSI TS 100 392-16: "Network Performance Metrics";
ETSI TR 100 392-17: "TETRA V+D and DMO specifications";
ETSI TS 100 392-18: "Air interface optimized applications":
Sub-part 1: "Location Information Protocol (LIP)";
Sub-part 2: "Net Assist Protocol (NAP)";
Sub-part 3: "Direct mode Over The Air Management protocol (DOTAM)";
Sub-part 4: "Net Assist Protocol 2 (NAP2)";
Sub-part 5: "SDS Based Supplementary Service Management (SBSSM)".
ETSI

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7 ETSI TS 100 392-18-4 V1.2.1 (2015-07)
NOTE 1: Part 3, sub-parts 6 and 7 (Speech format implementation), part 4, sub-part 3 (Data networks gateway),
part 10, sub-part 15 (Transfer of control), part 13 (SDL) and part 14 (PICS) of this multi-part deliverable
are in status "historical" and are not maintained.
NOTE 2: Some parts are also published as Technical Specifications such as ETSI TS 100 392-2 and those may be
the latest version of the document.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except
...