1、 ETSI TS 103 246-1 V1.1.1 (2015-04) Satellite Earth Stations and Systems (SES); GNSS based location systems; Part 1: Functional requirements TECHNICAL SPECIFICATION ETSI ETSI TS 103 246-1 V1.1.1 (2015-04)2 Reference DTS/SES-00368 Keywords functional, GNSS, location, navigation, receiver, requirement
2、s, satellite, system, terminal 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 Grasse (06) N 7803/88 Important notice The present docu
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7、ut the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2015. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Mem
8、bers. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 103 246-1 V1.1.1 (2015-04)3 Contents Intellectual Property Rights 4g3Foreword
9、 . 4g3Introduction 4g3Modal verbs terminology 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 5g33 Definitions, symbols and abbreviations . 6g33.1 Definitions 6g33.2 Symbols 8g33.3 Abbreviations . 8g34 Context description 9g34.1 Location based applications need
10、s . 9g34.1.1 Reminder on ETSI TR 103 183 content 9g34.1.2 Common needs . 9g34.1.3 Specific needs . 10g34.2 Generic location-based application use case 12g34.3 GNSS-based location systems 13g35 Functional requirements for Location system 14g35.1 Functional requirements outline . 14g35.2 Mandatory req
11、uirements . 14g35.2.1 Positioning techniques 14g35.2.2 Location-related data delivery 14g35.2.3 Location system policies . 15g35.3 Optional requirements 15g35.3.1 Positioning techniques 15g35.3.2 Location-related data content 15g35.3.3 Location-related data delivery 16g35.4 GBLS Functional requireme
12、nts synthesis 16g3Annex A (informative): Common positioning techniques . 18g3A.1 GNSS methods . 18g3A.2 Assisted-GNSS methods 18g3A.3 Proximity sensing . 19g3A.4 Multilateration 19g3A.5 Triangulation 21g3A.6 Multi-sensor positioning through (A-)GNSS hybridization . 21g3Annex B (informative): GBLS Hi
13、gh level functional analysis 23g3History 24g3ETSI ETSI TS 103 246-1 V1.1.1 (2015-04)4 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 ETS
14、I 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
15、.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
16、 the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Satellite Earth Stations and Systems (SES). The present document is part 1 of a multi-part deliverable covering the GNSS based location systems, as identified below: Part 1: “Functional re
17、quirements“; Part 2: “Reference Architecture“ Part 3: “Performance requirements“; Part 4: “Requirements for location data exchange protocols“; Part 5: “Performance test specification“. Introduction The increasing proliferation of location-based services is based on several trends in user application
18、s and devices; these include notably the widespread adoption of multi-functional smart-phones etc., and the wider adoption of tracking devices (e.g. in transport). This need for new and innovative location-based services is generating a need for increasingly complex location systems. These systems a
19、re designed to deliver location-related data for one or more location targets to user applications. The wide spectrum of technical features identified in i.1 calls for a new and broader concept for location systems, taking into account hybrid solutions in which GNSS technologies are complemented wit
20、h other technology sensors to improve robustness and the performance. Hence a set of standards for GNSS-based location systems is defined, of which the present document is part 1. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“,
21、 “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 103 246-1 V1.1.1 (2015-04)5 1 Scop
22、e The present document addresses integrated location systems that combine Global Navigation Satellite Systems (GNSS), with other navigation technologies, as well as with telecommunication networks in order to deliver location-based services to users. The requirements herein are intended to address t
23、he growing use of complex location systems needed for the provision of location-based applications particularly for the mass-market (refer to i.1). The present document defines the functional requirements applicable to location systems, based on a synthesis of types of applications relying on locati
24、on-related data provided by location system. The present document can be considered as the Stage 1 characterization of location systems according to the ITU/3GPP approach i.2. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition numbe
25、r or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location migh
26、t be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. Not applicable. 2.2 I
27、nformative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendmen
28、ts) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular
29、 subject area. i.1 ETSI TR 103 183: “Satellite Earth Stations and Systems (SES); Global Navigation Satellite Systems (GNSS) based applications and standardisation needs“. i.2 Recommendation ITU-T I.130: “Method for the characterization of telecommunication services supported by an ISDN and network c
30、apabilities of an ISDN“. i.3 IS-GPS-200: “Revision D, Navstar GPS Space Segment/Navigation User Interfaces“. i.4 IS-GPS-705: “Navstar GPS Space Segment/User Segment L5 Interfaces“. i.5 IS-GPS-800: “Navstar GPS Space Segment/User Segment L1C Interfaces“. i.6 European GNSS (Galileo) Open Service: “Sig
31、nal In Space Interface Control Document“, Issue 1.1. i.7 “Global Navigation Satellite System GLONASS Interface Control Document“, Version 5.1. i.8 DTFA01-96-C-00025: “Specification for the Wide Area Augmentation System (WAAS)“, US Department of Transportation, Federal Aviation Administration. ETSI E
32、TSI TS 103 246-1 V1.1.1 (2015-04)6 i.9 RTCA DO-229D: “Minimum Operational Performance Standards for Global Positioning System/Satellite-Based Augmentation System Airborne Equipment“, SBAS ICD Annex 1. i.10 IS-QZSS, Quasi Zenith Satellite System Navigation Service Interface Specifications for QZSS, V
33、er.1.0. i.11 BDS-SIS-ICD-B1I-1.0: “BeiDou Navigation Satellite System Signal In Space Interface Control Document Open Service Signal B1I (Version 1.0)“. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document the following terms and definitions apply: applic
34、ation module: entity in charge of retrieving from a location system the location-related data associated to one or more location targets and processing it in order to deliver to the application user the location based service it has been designed for NOTE: The application module can be located insid
35、e or outside a terminal. authentication: provision of assurance that the location-related data associated with a location target has been derived from real signals associated with the location target NOTE: By extension, authentication is one of the key performance features that can be required to a
36、location system. architecture: abstract representation of a communications system NOTE: Three complementary types of architecture are defined: square4 Functional Architecture: the discrete functional elements of the system and the associated logical interfaces. square4 Physical (Network) Architectur
37、e: the discrete physical (network) elements of the system and the associated physical interfaces. square4 Protocol Architecture: the protocol stacks involved in the operation of the system and the associated peering relationships. availability: measures percentage of time when a location system is a
38、ble to provide the required location-related data. NOTE: The required location-related data might vary between location based applications. It may not only contain a required type of information (e.g. position and speed), but also a required quality of service (e.g. accuracy, protection level, authe
39、ntication). continuity: likelihood that the navigation signal-in-space supports the accuracy and integrity requirements for the duration of the intended operation NOTE: It guarantees that a user can start an operation during a given exposure period without an interruption of this operation, assuming
40、 that the service was available at beginning of the operation. Conversely, a Loss of Continuity occurs when the user is forced to abort an operation during a specified time interval after it has begun (the system predicts service was available at start of operation). continuity risk: probability tha
41、t a detected but unscheduled navigation interruption after initiation of an operation electromagnetic interference: any source of RF transmission that is within the frequency band used by a communication link, which degrades the performance of this link NOTE: Jamming is a particular case of electrom
42、agnetic interference, where interfering radio signal is deliberately broadcast to disrupt the communication. ETSI ETSI TS 103 246-1 V1.1.1 (2015-04)7 fraud: any kind of activity of a location-based application stakeholder aiming at jeopardizing the application objective. NOTE: By extension, it descr
43、ibes the activity aiming at reporting a falsified location target position in the frame of location-based applications. integrity: function of a location system that measures the trust that can be placed in the accuracy of the location-related data provided by the location system NOTE: In the presen
44、t technical context, it is expressed through the computation of a protection level. The Integrity function includes the ability of the location system to provide timely and valid warnings to users when the system should not be used for the intended operation. Specifically, a location system is requi
45、red to deliver a warning (an alert) of any malfunction (as a result of a set alert limit being exceeded) to users within a given period of time (time-to-alert). Related to the Integrity concept, a Loss of Integrity event occurs when an unsafe condition occurs without annunciation for a time longer t
46、han the time-to-alert limit. integrity risk: probability that the actual error of the location-related data is larger than the protection level, in case of system availability (i.e. protection level lower than the alert limit) jamming: deliberate transmission of interference in order to disrupt comm
47、unications NOTE: In the present technical context, targeted communication signals are GNSS or telecommunication signals. latency: latency of a location system measures the time elapsed between the event triggering the determination of the location-related data for (a) location target(s) (i.e. locati
48、on request from external client, external or internal event triggering location reporting), and the availability of the location-related data at the user interface location-based application: application that is able to deliver a location-based service to one or several users location-based service:
49、 service built on the processing of the Location-related data associated with one or several location targets location-related data: set of data associated with a given location target, containing one or several of the following time-tagged information elements: target position, target motion indicators (velocity and acceleration), and Quality of service indicators (estimates of the position accuracy, reliability or authenticity) NOTE: It is the main output of a Location system. location system: system responsible for providing to a location based
