1、 ETSI TS 101 376-5-7 V3.4.1 (2015-10) GEO-Mobile Radio Interface Specifications (Release 3); Third Generation Satellite Packet Radio Service; Part 5: Radio interface physical layer specifications; Sub-part 7: Radio Subsystem Synchronization; GMR-1 3G 45.010 TECHNICAL SPECIFICATION ETSI ETSI TS 101 3
2、76-5-7 V3.4.1 (2015-10) 2GMR-1 3G 45.010Reference RTS/SES-00374-5-7 Keywords 3G, GMPRS, GMR, GPRS, GSM, GSO, interface, MES, mobile, MSS, radio, satellite, S-PCN, synchronization, terminal, user ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93
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8、unications Standards Institute 2015. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and
9、the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 101 376-5-7 V3.4.1 (2015-10) 3GMR-1 3G 45.010Contents Intellectual Property Rights 6g3Foreword . 6g3Modal verbs terminology 7g3Introduction 7g31 Scope 9g32 References 9g32.1 Normative references . 9g32.2 Informati
10、ve references 10g33 Definitions and abbreviations . 10g33.1 Definitions 10g33.2 Abbreviations . 11g34 General description of synchronization system 11g34.0 Overview 11g34.1 System timing structure 11g34.2 Timebase counter . 12g34.3 General requirement . 12g34.3.1 Timing and frequency reference point
11、 12g34.3.2 MES requirement 12g34.3.3 Network requirement 13g34.3.4 Measurement conditions . 13g35 Timing synchronization, TtG/GtT Session. 13g35.0 Overview 13g35.1 General description. 13g35.2 Timing of forward link common channels . 14g35.2.0 General 14g35.2.1 FCCH/BCCH timing. 14g35.2.2 CCCH timin
12、g 14g35.3 Idle mode timing synchronization 15g35.3.1 Initial timing acquisition . 15g35.3.2 Paging mode . 15g35.3.3 Alerting mode . 15g35.4 Synchronization at initial access 15g35.4.1 Synchronization process . 15g35.4.2 RACH timing pre-correction 16g35.4.3 Description of parameters . 18g35.4.4 Timin
13、g accuracy . 19g35.5 Dedicated mode synchronization (A/Gb mode only) . 19g35.5.0 General 19g35.5.1 In-call timing relationship (A/Gb mode only) 19g35.5.2 In-call synchronization scenario (A/Gb mode only) . 20g35.5.3 Transmission timing drift rate (A/Gb mode only) 21g35.5.4 RX/TX guard time violation
14、 (A/Gb mode only) . 22g35.6 Packet transfer mode synchronization 22g35.6.0 General 22g35.6.1 Packet transfer mode timing relationship 22g35.6.2 Time synchronization for Packet switched channels 24g35.6.3 Transmission timing drift rate . 27g35.6.4 RX/TX guard time violation . 27g35.6.5 Packet transfe
15、r mode timing relationship for handover to dedicated packet channel (Iu mode only) 27g35.6.6 Packet transfer mode timing for handover to shared packet channel (Iu mode only) . 28g36 Frequency synchronization, TtG/GtT call 29g36.0 Overview 29g36.1 General description. 29g3ETSI ETSI TS 101 376-5-7 V3.
16、4.1 (2015-10) 4GMR-1 3G 45.0106.2 Frequency of common channels . 29g36.3 Idle mode frequency synchronization. 29g36.3.1 Initial frequency acquisition . 29g36.3.2 Paging mode . 29g36.3.3 Alerting mode . 30g36.4 Synchronization at initial access 30g36.4.0 General 30g36.4.1 Frequency compensation strat
17、egy . 30g36.4.2 Parameter description . 31g36.5 Dedicated mode synchronization (A/Gb mode only) . 32g36.6 Frequency synchronization for the packet switched channels 33g37 Frame and message synchronization, TtG/GtT call . 35g37.1 Frame synchronization . 35g37.1.1 Frame number definition 35g37.1.2 Fra
18、me synchronization scenario . 36g37.2 Message synchronization . 36g37.2.1 Power control message synchronization . 36g37.2.1.0 General 36g37.2.1.1 Synchronization in master-to-slave direction (A/Gb mode only) 37g37.2.1.2 Synchronization in slave-to-master direction (A/Gb mode only) 37g37.2.1.3 DCH po
19、wer control message synchronization in forward direction . 38g37.2.1.4 DCH power control message synchronization in return direction . 38g37.2.2 SACCH message synchronization, TCH6/TCH9 call (A/Gb mode only) 38g38 Synchronization for TtT call (A/Gb mode only) 38g38.0 General . 38g38.1 Timing synchro
20、nization 40g38.1.1 General description . 40g38.1.2 Initial access 40g38.1.2.0 General 40g38.1.2.1 Synchronization procedure 40g38.1.2.2 Basic requirement . 41g38.1.3 TtG channel synchronization 41g38.1.3.0 General 41g38.1.3.1 Basic requirement . 42g38.1.4 Transition from TtG-to-TtT channel . 42g38.1
21、.4.0 General 42g38.1.4.1 Synchronization procedure 42g38.1.4.2 Basic requirement . 42g38.1.5 TtT channel synchronization. 42g38.1.5.0 General 42g38.1.5.1 Synchronization procedure 43g38.1.5.2 Basic requirement . 43g38.1.6 Effect of the half symbol offset (TtT call) 43g38.2 Frequency synchronization
22、. 44g38.2.1 General description . 44g38.2.2 Synchronization at initial access . 45g38.2.2.0 General 45g38.2.2.1 Synchronization procedure 45g38.2.2.2 Basic requirement . 46g38.2.3 TtG channel synchronization 46g38.2.3.0 General 46g38.2.3.1 Basic requirement . 46g38.2.4 Transition from TtG-to-TtT cha
23、nnel . 46g38.2.4.0 General 46g38.2.4.1 Synchronization procedure 46g38.2.4.2 Basic requirement . 47g38.2.5 TtT channel synchronization. 47g38.2.5.0 General 47g38.2.5.1 Synchronization procedure 47g38.2.5.2 Basic requirement . 47g3ETSI ETSI TS 101 376-5-7 V3.4.1 (2015-10) 5GMR-1 3G 45.0108.3 Frame sy
24、nchronization . 47g39 Aeronautical terminal synchronization scheme 48g39.1 MES special features 48g39.1.1 Speed 48g39.1.2 Worst-case delay and Doppler features 48g39.1.3 Frequency offset . 49g39.2 Frequency synchronization . 49g39.2.1 Frequency synchronization general description 49g39.2.2 Idle mode
25、 frequency synchronization . 49g39.2.2.1 Initial frequency acquisition 49g39.2.2.2 Paging mode 50g39.2.2.3 Alerting mode . 50g39.2.3 Synchronization at initial access . 50g39.2.3.1 Frequency compensation strategy . 50g39.2.3.2 Parameter description 50g39.2.4 Dedicated mode synchronization 51g39.2.4.
26、0 General 51g39.2.4.1 Frequency compensation strategy . 51g39.2.4.2 Parameter description 51g39.3 Timing synchronization 52g39.3.1 Timing synchronization general description . 52g39.3.2 Idle mode timing synchronization 52g39.3.2.1 Initial timing acquisition . 52g39.3.2.2 Paging mode 52g39.3.2.3 Aler
27、ting mode . 52g39.3.3 Synchronization at initial access . 52g39.3.4 Dedicated mode synchronization 53g39.3.4.1 Doppler-based timing adjustment . 53g39.3.4.2 Standard timing synchronization procedure 53g39.3.4.3 Parameter description 53g3Annex A (informative): Worst-case delay and Doppler features .
28、54g3A.1 L-band 54g3A.2 S-band. 54g3Annex B (informative): Range of timing correction factor 56g3Annex C (informative): Differential Doppler frequency . 57g3Annex D (informative): SACCH message synchronization, TtG/GtT call (A/Gb mode only) 58g3D.0 General . 58g3D.1 SACCH message synchronization scen
29、ario . 58g3D.2 SACCH message-round trip delay . 58g3Annex E (normative): Timer T3202 for packet mode of operation . 61g3Annex F (normative): PTCCH/U and PTCCH/D scheduling (A/Gb mode only) 62g3Annex G (informative): Bibliography . 63g3History 64g3ETSI ETSI TS 101 376-5-7 V3.4.1 (2015-10) 6GMR-1 3G 4
30、5.010Intellectual 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 Pro
31、perty 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 sear
32、ches, 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 produc
33、ed by ETSI Technical Committee Satellite Earth Stations and Systems (SES). The contents of the present document are subject to continuing work within TC-SES and may change following formal TC-SES approval. Should TC-SES modify the contents of the present document it will then be republished by ETSI
34、with an identifying change of release date and an increase in version number as follows: Version 3.m.n where: the third digit (n) is incremented when editorial only changes have been incorporated in the specification; the second digit (m) is incremented for all other types of changes, i.e. technical
35、 enhancements, corrections, updates, etc. The present document is part 5, sub-part 7 of a multi-part deliverable covering the GEO-Mobile Radio Interface Specifications (Release 3); Third Generation Satellite Packet Radio Service, as identified below: Part 1: “General specifications“; Part 2: “Servic
36、e specifications“; Part 3: “Network specifications“; Part 4: “Radio interface protocol specifications“; Part 5: “Radio interface physical layer specifications“: Sub-part 1: “Physical Layer on the Radio Path: General Description; GMR-1 3G 45.001“; Sub-part 2: “Multiplexing and Multiple Access; Stage
37、2 Service Description; GMR-1 3G 45.002“; Sub-part 3: “Channel Coding; GMR-1 3G 45.003“; Sub-part 4: “Modulation; GMR-1 3G 45.004“; Sub-part 5: “Radio Transmission and Reception; GMR-1 3G 45.005“; Sub-part 6: “Radio Subsystem Link Control; GMR-1 3G 45.008“; Sub-part 7: “Radio Subsystem Synchronizatio
38、n; GMR-1 3G 45.010“; Part 6: “Speech coding specifications“; Part 7: “Terminal adaptor specifications“. ETSI ETSI TS 101 376-5-7 V3.4.1 (2015-10) 7GMR-1 3G 45.010Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“
39、 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. Introduction GMR stands for GEO (Geostationary Earth Orbit) Mobil
40、e Radio interface, which is used for Mobile Satellite Services (MSS) utilizing geostationary satellite(s). GMR is derived from the terrestrial digital cellular standard GSM and supports access to GSM core networks. The present document is part of the GMR Release 3 specifications. Release 3 specifica
41、tions are identified in the title and can also be identified by the version number: Release 1 specifications have a GMR 1 prefix in the title and a version number starting with “1“ (V1.x.x). Release 2 specifications have a GMPRS 1 prefix in the title and a version number starting with “2“ (V2.x.x).
42、Release 3 specifications have a GMR-1 3G prefix in the title and a version number starting with “3“ (V3.x.x). The GMR release 1 specifications introduce the GEO-Mobile Radio interface specifications for circuit mode Mobile Satellite Services (MSS) utilizing geostationary satellite(s). GMR release 1
43、is derived from the terrestrial digital cellular standard GSM (phase 2) and it supports access to GSM core networks. The GMR release 2 specifications add packet mode services to GMR release 1. The GMR release 2 specifications introduce the GEO-Mobile Packet Radio Service (GMPRS). GMPRS is derived fr
44、om the terrestrial digital cellular standard GPRS (included in GSM Phase 2+) and it supports access to GSM/GPRS core networks. The GMR release 3 specifications evolve packet mode services of GMR release 2 to 3rd generation UMTS compatible services. The GMR release 3 specifications introduce the GEO-
45、Mobile Radio Third Generation (GMR-1 3G) service. Where applicable, GMR-1 3G is derived from the terrestrial digital cellular standard 3GPP and it supports access to 3GPP core networks. Due to the differences between terrestrial and satellite channels, some modifications to the GSM or 3GPP standard
46、are necessary. Some GSM and 3GPP specifications are directly applicable, whereas others are applicable with modifications. Similarly, some GSM and 3GPP specifications do not apply, while some GMR specifications have no corresponding GSM or 3GPP specification. Since GMR is derived from GSM and 3GPP,
47、the organization of the GMR specifications closely follows that of GSM or 3GPP as appropriate. The GMR numbers have been designed to correspond to the GSM and 3GPP numbering system. All GMR specifications are allocated a unique GMR number. This GMR number has a different prefix for Release 2 and Rel
48、ease 3 specifications as follows: Release 1: GMR n xx.zyy. Release 2: GMPRS n xx.zyy. Release 3: GMR-1 3G xx.zyy. where: - xx.0yy (z = 0) is used for GMR specifications that have a corresponding GSM or 3GPP specification. In this case, the numbers xx and yy correspond to the GSM or 3GPP numbering sc
49、heme. - xx.2yy (z = 2) is used for GMR specifications that do not correspond to a GSM or 3GPP specification. In this case, only the number xx corresponds to the GSM or 3GPP numbering scheme and the number yy is allocated by GMR. - n denotes the first (n = 1) or second (n = 2) family of GMR specifications. ETSI ETSI TS 101 376-5-7 V3.4.1 (2015-10) 8GMR-1 3G 45.010A GMR system is defined by the combination of a family of GMR specifications and GSM and 3GPP specifications as follows: If a GMR specification exists it takes precedence over the corresponding GSM or
