European GNSS (Galileo) open service

ubtionlicDRsultaAFCoTnEuropean GNSS (Galileo)Open ServiceForPSignal In SpaceInterface Control DocumentNavigation solutions powered by Europe© European Union 2014Document subject to terms of use and disclaimers p. i-iiOS SIS ICD, Issue 1.2, dd.mm 2014TERMS OF USE AND DISCLAIMERS1. Authorised Use and Scope of UseNote: The name “Galileo” shall mean the system established under the Galileo programme.ltaAFCoTn2. General Disclaimer of Liability as to UsetionThe European GNSS (Galileo) Open Service Signal In Space Interface Control DocumentIssue 1.2 (hereinafter referred to as OS SIS ICD) and the information contained herein ismade available to the public by the European Union (hereinafter referred to as PublishingAuthority) for information, standardization, research and development and commercialpurposes for the benefit and the promotion of the European Global Navigation SatelliteSystems programmes (European GNSS Programmes) and according to terms and conditionsspecified thereafter.DRsuWith respect to the OS SIS ICD and any information contained in the OS SIS ICD, neitherthe Publishing Authority nor the copyright holders nor the generator of such informationmake any warranty, express or implied, including the warranty of fitness for a particularpurpose, or assumes any legal liability or responsibility for the accuracy, completeness, orusefulness of any information hereby disclosed or for any product developed based on thisinformation, or represents that the use of this information would not cause damages orwould not infringe any intellectual property rights.

No liability is hereby assumed for anydirect, indirect, incidental, special or consequential damages, including but not limited to,damages for interruption of business, loss of profits, goodwill or other intangible losses,resulting from the use of the OS SIS ICD or of the information contained herein. Liabilityis excluded as well for consequences of the use and / or abuse of the OS SIS ICD or theinformation contained herein.3. Disclaimers as to Intellectual Property RightslicThe information contained in the OS SIS ICD, including its Annexes, is subject to intellectualproperty rights (hereinafter referred to as IPR).ubCopyrightrPThe OS SIS ICD is protected by copyright.

Any alteration or translation in any languageof the OS SIS ICD as a whole or parts of it is prohibited unless the Publishing Authorityprovides a specific written prior permission. The OS SIS ICD may only be partly or whollyreproduced and/or transmitted to a third party for non-profit purposes, in accordance withthe herein described permitted use and under the following conditions:Fo●● the present “Terms of Use and Disclaimers” are accepted, reproduced and transmittedentirely and unmodified together with the reproduced and/or transmitted information;●● the copyright notice “© European Union 2014” is not removed from any page.4.

Licence for OS SIS ICD Intellectual Property RightsThe use of the information contained in the OS SIS ICD, including the spreading codes whichare subject to IPR, is hereby allowed for research and development on, manufacturing,commercialisation, distribution, sale, supply and maintenance of electronic devices (e.g.chipsets and receivers) and supply of Value Added Services according to the terms andconditions of the license agreement attached hereto as Annex D.i© European Union 2014Document subject to terms of use and disclaimers p.

i-iiOS SIS ICD, Issue 1.2, dd.mm 2014Such licences will be provided on a non-discriminatory basis in accordance with EuropeanUnion rules and international commitments taken within the framework of the EuropeanGNSS Programmes.Any interested party should contact: oss-icd@ec.europa.eu5. MiscellaneousThe publication or provision of the OS SIS ICD or the information contained herein shall notbe construed as granting any implied IPR licence.tionNo failure or delay in exercising any right in relation to the OS SIS ICD or the informationcontained therein shall operate as a waiver thereof, nor shall any single or partial exercisepreclude any other or further exercise of such rights.lta6. UpdatesAFCoTnThe disclaimers contained in this document apply to the extent permitted by applicablelaw.The OS SIS ICD in its current version could be subject to modification, update, and variations.The publication of updates will be subject to the same terms as stated herein unlessotherwise evidenced.ForPublicDRsuAlthough the Publishing Authority will deploy its efforts to give notice to the public forfurther updates of OS SIS ICD, it does not assume any obligation to advise on furtherdevelopments and updates of the OS SIS ICD, nor to take into account any inputs, commentsproposed by interested persons or entities, involved in the updating process.© European Union 2014Document subject to terms of use and disclaimers p.

i-iiOS SIS ICD, Issue 1.2, dd.mm 2014iiDocument Change RecordReason for changeIssue RevisionDateDraft0May 2006CBOC Modulation added, ‘lossless atmosphere’ assumption removed from Tx powerdefinition (issue under study), SAR data, update of the bit allocations of some F/NAV andI/NAV pages, editorial corrections etc.Draft1February2008Update of the ‘Terms of Use and Disclaimers’ section and namely the licensing policy forR&D and standardization purposes as well as commercial purposes.Issue 10February2010Assignment of the primary and secondary codes to satellites in section in section 3.6.More details on the I/NAV alert page content in section 4.3.2.3.tionFirst issueClarification of the power sharing between the different Galileo signal components in section2.7.1.ltaAFCoTnAddition of Galileo E1 sub-carriers plots in section 2.3.3Clarification that Galileo E5a and E5b signals can be processed as QPSK signals in section2.3.1.2.Update of the acronym list with QPSK in annex A.suIn section 4.2.4, for Page Type 6, parameter ‘i’ has been replaced by ω, the argument ofperigee.In section 5.1.2, Time of Week an entire week from 0 to 604799 seconds, not up to 604800.Licence Agreement has been made easier to be adopted by licensees.Issue 11September2010Issue 12February2014DRTerms of use and disclaimers have been amended accordingly.Main updates:Update of the constellation description and Earth radius in section 1.3.Correction of DCX-Y and rectT(t) definitions in Table 3.licE1-B, E1-C and E5 Primary Codes now delivered only in the electronic version of this ICD:sections 3.4.1 and 3.4.2, Annex C.Secondary Codes CS10037 to CS10039 added in Table 19.ubI/NAV usage updated in section 4.1.1.Correction of “Dummy Data (2/2)” bits allocation in Table 50.Correction of “start bit” value (equal 0 instead of 1) in part (5/8) of long RLM in Table 55.rPAdded “start bit” value (equal 1) in Table 56.Correction of “GTRF coordinates” formula in Table 58 (last row): “y” is the sum of the twoterms.Updated description of GST start epoch in section 5.1.2.FoClarification of “Day Number” value range in Table 65.Confirmation of “Data validity Status Bit” values in Table 71.Updates of section 5.2 relevant to the SAR Return Link Message to include RLM data content.iii© European Union 2014Document subject to terms of use and disclaimers p.

i-iiOS SIS ICD, Issue 1.2, dd.mm 2014Reason for changeIssue RevisionDateOther revisions:Figure 8 improved and chart titles modified.Use of the expression XOR instead of EXOR in Figure 10 “LFSR Based Code Generator forTruncated and Combined M‑sequences”.Removal of references to the “Galileo L1 signals” as this notation is incorrect and the signalsshould be referred to as E1 signals (in section 3.6.1; in section 3.6.2 and in Equation 10 p 8).Introduction of additional explanatory sentences for Figure 13. “Convolutional CodingScheme” and Table 37.

“I/Nav Nominal Sub-Frame Structure”.Table 37 updated: one word and one number added respectively in row 27 and 30.ltaAFCoTnCorrection of expression "(ΔA)1/2"(Difference with respect to the square root of the nominalsemi-major axis) of Table 45 and "Δ(A1/2)" of Tables 46 and 47 into the correct expression"Δ(A1/2)"tionRemoval of references to “E5 memory codes” in section 3.4.1 and title 8 as the E5 spreadingcodes are not memory codes but rather generated from LFSR sequences.suClarification of the way a SAR receiver identifies SAR data belonging to SAR Return LinkMessage in Section 4.3.7 (subsection “Spare SAR Data”).Clarification of the boundaries of the region for the Ionospheric disturbance flag (MODIP ε{90°; 60°; 30°; -30°; -60°; -90°}) at the end of section 5.1.6.Added footnotes in Tables 57 and 75 for the description of the longitude “Omega zero”.DRTable 65 moved from section 5.1.8 to section 5.1.7.Revision of Annex A (List of Acronyms) and Annex B (Definitions and Nomenclature).Miscellaneous minor typographical and wording corrections.ForPublicRevisions are made visible with vertical bars in page margins.© European Union 2014Document subject to terms of use and disclaimers p.

i-iiOS SIS ICD, Issue 1.2, dd.mm 2014ivtionsultaAFCoTnublicDRrPFov© European Union 2014Document subject to terms of use and disclaimers p. i-iiOS SIS ICD, Issue 1.2, dd.mm 2014Table of Contents1.Introduction...........................................................................................................................11.1. Document Scope............................................................................................................................11.2. Document Overview.......................................................................................................................11.3.

Galileo System Overview...............................................................................................................12. Galileo Signal Characteristics.............................................................................................2tionAFCoTn2.1. Frequency Plan...............................................................................................................................22.1.1.

Frequency Bands......................................................................................................................................................................................22.1.2. Carrier Frequencies ................................................................................................................................................................................22.1.3. Receiver Reference Bandwidths ......................................................................................................................................................22.2. Signal Polarization..........................................................................................................................32.3.Modulation.......................................................................................................................................32.3.1.