1、 ETSI TS 125 171 V14.0.0 (2017-04) Universal Mobile Telecommunications System (UMTS); Requirements for support of Assisted Global Positioning System (A-GPS); Frequency Division Duplex (FDD) (3GPP TS 25.171 version 14.0.0 Release 14) TECHNICAL SPECIFICATION ETSI ETSI TS 125 171 V14.0.0 (2017-04)13GPP
2、 TS 25.171 version 14.0.0 Release 14Reference RTS/TSGR-0425171ve00 Keywords UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grass
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9、d by the GSM Association. ETSI ETSI TS 125 171 V14.0.0 (2017-04)23GPP TS 25.171 version 14.0.0 Release 14Intellectual 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 publicl
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12、 become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These shou
13、ld be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may
14、“, “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 when used in direct citation. ETSI ETSI TS 125 171 V14.
15、0.0 (2017-04)33GPP TS 25.171 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions, symbols, abbreviations and test tolerances . 7g33.1 Definitions 7g33.2 Symbols 7g33.3 Abbreviations . 7g33.4
16、 Test tolerances 8g34 General . 8g34.1 Introduction 8g34.2 Measurement parameters 8g34.2.1 UE based A-GPS measurement parameters 8g34.2.2 UE assisted A-GPS measurement parameters. 8g34.3 Response time 8g34.4 Time assistance 8g34.4.1 Use of fine time assistance 9g34.5 RRC states 9g34.6 2D position er
17、ror 9g35 A-GPS minimum performance requirements . 9g35.1 Sensitivity . 9g35.1.1 Coarse time assistance 9g35.1.1.1 Minimum Requirements (Coarse time assistance) 10g35.1.2 Fine time assistance 10g35.1.2.1 Minimum Requirements (Fine time assistance) 10g35.2 Nominal Accuracy 10g35.2.1 Minimum requiremen
18、ts (nominal accuracy) . 11g35.3 Dynamic Range 11g35.3.1 Minimum requirements (dynamic range) . 11g35.4 Multi-Path scenario 11g35.4.1 Minimum Requirements (multi-path scenario) . 12g35.5 Moving scenario and periodic update . 12g35.5.1 Minimum Requirements (moving scenario and periodic update) . 13g3A
19、nnex A (normative): Test cases 14g3A.1 Conformance tests 14g3A.2 Requirement classification for statistical testing 14g3Annex B (normative): Test conditions 15g3B.1 General . 15g3B.1.1 Parameter values 15g3B.1.2 Time assistance 15g3B.1.3 GPS Reference Time 15g3B.1.4 Reference and UE locations . 15g3
20、B.1.5 Satellite constellation and assistance data 16g3B.1.6 Atmospheric delays 16g3B.1.7 UTRA Frequency and frequency error . 16g3B.1.8 Information elements 16g3B.1.9 GPS signals 16g3ETSI ETSI TS 125 171 V14.0.0 (2017-04)43GPP TS 25.171 version 14.0.0 Release 14B.1.10 RESET UE POSITIONING STORED INF
21、ORMATION Message . 16g3Annex C (normative): Propagation conditions 17g3C.1 General . 17g3C.2 Propagation Conditions 17g3C.2.1 Static propagation conditions . 17g3C.2.2 Multi-path Case G1 17g3Annex D (normative): Measurement sequence chart . 18g3D.1 General . 18g3D.2 UE Based A-GPS Measurement Sequen
22、ce Chart 18g3D.2.1 UE Based GPS Message Sequence Normal . 18g3D.2.2 UE Based GPS Message Sequence Normal for moving scenario and periodic update test case 20g3D.2.3 UE Based GPS Message Sequence Failure 21g3D.3 UE Assisted A-GPS Measurement Sequence Chart . 21g3D.3.1 UE Assisted A-GPS Measurement Se
23、quence Chart Normal 21g3D.3.2 UE assisted A-GPS Measurement Sequence for moving scenario and periodic update test case 23g3Annex E (normative): Assistance data required for testing . 24g3E.1 Introduction 24g3E.2 Information elements required for UE-based . 24g3E.3 Information elements available for
24、UE-assisted . 25g3Annex F (normative): Converting UE-assisted measurement reports into position estimates . 27g3F.1 Introduction 27g3F.2 UE measurement reports 27g3F.3 WLS position solution 28g3Annex G (informative): Change History 30g3History 32g3ETSI ETSI TS 125 171 V14.0.0 (2017-04)53GPP TS 25.17
25、1 version 14.0.0 Release 14Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of t
26、he present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document un
27、der change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 125 171 V14.0.0 (2017-04)63GPP TS 25.171 versi
28、on 14.0.0 Release 141 Scope The present document establishes the minimum performance requirements for A-GPS for FDD mode of UTRA for the User Equipment (UE). 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
29、References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a
30、GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TS 25.101: “User Equipment (UE) radio transmission and reception (FDD)“. 2 3GPP TS 25.104: “Base Station (BS) radio transmission and reception (FDD)“.
31、3 3GPP TS 34.171: “Terminal Conformance Specification, Assisted Global Positioning System (A-GPS) (FDD)“. 4 3GPP TS 25.331: “Radio Resource Control (RRC) protocol specification“. 5 3GPP TS 25.302: “Services provided by the physical layer“. 6 3GPP TS 25.215: “Physical layer; Measurements (FDD)“. 7 ET
32、SI TR 102 273-1-2: “Electromagnetic compatibility and Radio spectrum Matters (ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the corresponding measurement uncertainties; Part 1: Uncertainties in the measurement of mobile radio equipment characteristics; Sub-
33、part 2: Examples and annexes“. 8 Navstar GPS Space Segment/Navigation User Interfaces, ICD-GPS 200, Rev. C. 9 P. Axelrad, R.G. Brown, “GPS Navigation Algorithms“, in Chapter 9 of “Global Positioning System: Theory and Applications“, Volume 1, B.W. Parkinson, J.J. Spilker (Ed.), Am. Inst. of Aeronaut
34、ics and Astronautics Inc., 1996. 10 S.K. Gupta, “Test and Evaluation Procedures for the GPS User Equipment“, ION-GPS Red Book, Volume 1, p. 119. 11 3GPP TS 34.109: “Special conformance testing functions” ETSI ETSI TS 125 171 V14.0.0 (2017-04)73GPP TS 25.171 version 14.0.0 Release 143 Definitions, sy
35、mbols, abbreviations and test tolerances 3.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP TS 25.101 1, 3GPP TS 25.104 2 and the following apply: Horizontal Dilution Of Precision (HDOP): measure of position determination accuracy that is a function of
36、the geometrical layout of the satellites used for the fix, relative to the receiver antenna Node B: logical node responsible for radio transmission / reception in one or more cells to/from the User Equipment. Terminates the Iub interface towards the RNC L1: L band GPS transmission frequency of 1575.
37、42 MHz 3.2 Symbols Void 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: A-GPS Assisted - Global Positioning System AWGN Additive White Gaussian Noise C/A Coarse/Acquisition CPICH Common Pilot CHannel DCH Dedicated CHannel DPCH Dedicated Physical CHannel
38、 DUT Device Under Test ECEF Earth Centred, Earth Fixed FACH Fast Access CHannel FDD Frequency Division Duplex GPS Global Positioning SystemGSS GPS System Simulator HDOP Horizontal Dilution Of Precision LOS Line Of Sight PICH Paging Indicator CHannel RRC Radio Resource Control RSCP Received Signal Co
39、de Power SFN System Frame Number SMLC Standalone Mobile Location Center SRNC Serving Radio Network Controller SS FDD System simulator TDD Time Division Duplex TLM TeLeMetry word. It contains an 8-bits preamble (10001011) TOW Time Of Week TTFF Time To First Fix UE User EquipmentUTRA Universal Terrest
40、rial Radio Access UTRAN Universal Terrestrial Radio Access Network WLS Weighted Least Square ETSI ETSI TS 125 171 V14.0.0 (2017-04)83GPP TS 25.171 version 14.0.0 Release 143.4 Test tolerances The requirements given in the present document make no allowance for measurement uncertainty. The test speci
41、fication 3GPP TS 34.171 3 defines test tolerances. These test tolerances are individually calculated for each test. The test tolerances are then added to the limits in the present document to create test limits. The measurement results are compared against the test limits as defined by the shared ri
42、sk principle. Shared Risk is defined in ETR 273-1-2 7, subclause 6.5. 4 General 4.1 Introduction The present document defines the minimum performance requirements for both UE based and UE assisted FDD A-GPS terminals. 4.2 Measurement parameters 4.2.1 UE based A-GPS measurement parameters In case of
43、UE-based A-GPS, the measurement parameters are contained in the RRC UE POSITIONING POSITION ESTIMATE INFO IE. The measurement parameter in case of UE-based A-GPS is the horizontal position estimate reported by the UE and expressed in latitude/longitude. 4.2.2 UE assisted A-GPS measurement parameters
44、 In case of UE-assisted A-GPS, the measurement parameters are contained in the RRC UE POSITIONING GPS MEASURED RESULTS IE. The measurement parameters in case of UE-assisted A-GPS are the UE GPS Code Phase measurements, as specified in 3GPP TS 25.302 5 and 3GPP TS 25.215 6. The UE GPS Code Phase meas
45、urements are converted into a horizontal position estimate using the procedure detailed in Annex F. 4.3 Response time Max Response Time is defined as the time starting from the moment that the UE has received the final RRC measurement control message containing reporting criteria different from “No
46、Reporting“ sent before the UE sends the measurement report containing the position estimate or the GPS measured result, and ending when the UE starts sending the measurement report containing the position estimate or the GPS measured result on the Uu interface. The response times specified for all t
47、est cases are Time-to-First-Fix (TTFF) unless otherwise stated, i.e. the UE shall not re-use any information on GPS time, location or other aiding data that was previously acquired or calculated and stored internally in the UE. A dedicated test message RESET UE POSITIONING STORED INFORMATION has bee
48、n defined in TS 34.109 11 clause 5.4 for the purpose of deleting this information and is detailed in subclause B.1.10. 4.4 Time assistance Time assistance is the provision of GPS time to the UE from the network via RRC messages. Currently two different GPS time assistance methods can be provided by
49、the network. a) Coarse time assistance is always provided by the network and provides current GPS time to the UE. The time provided is within 2 seconds of GPS system time. This allows the GPS time to be known within one GPS navigation data sub-frame. It is signalled to the UE by means of the GPS Week and GPS TOW msec fields in the Reference Time assistance data IE. b) Fine time assistance is optionally provided by the network and adds the provision to the UE of the relationship between the GPS system time and the current UTRAN time
