1、 ETSI TS 102 744-3-2 V1.1.1 (2015-10) Satellite Earth Stations and Systems (SES); Family SL Satellite Radio Interface (Release 1); Part 3: Control Plane and User Plane Specifications; Sub-part 2: Bearer Control Layer Operation TECHNICAL SPECIFICATION ETSI ETSI TS 102 744-3-2 V1.1.1 (2015-10) 2 Refer
2、ence DTS/SES-00299-3-2 Keywords 3GPP, GPRS, GSM, GSO, interface, MSS, radio, satellite, TDM, TDMA, 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
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8、e 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 the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 102
9、744-3-2 V1.1.1 (2015-10) 3 Contents Intellectual Property Rights 7g3Foreword . 7g3Modal verbs terminology 7g3Introduction 7g31 Scope 8g32 References 8g32.1 Normative references . 8g32.2 Informative references 9g33 Symbols and abbreviations . 9g33.1 Symbols 9g33.2 Abbreviations . 9g34 General Archite
10、cture 9g35 Bearer Control Services 11g35.1 Bearer Control Service Access Points 11g35.1.0 General 11g35.1.1 Services provided to Upper Layers . 11g35.1.2 Services Expected from the Lower Layers . 11g35.1.3 Services Expected from External Entities . 12g35.2 Bearer Control Layer Service Primitives 12g
11、35.2.1 Data Transfer Service Access Points 12g35.2.1.1 BCt-DATA-SAP Primitives and Parameters. 12g35.2.1.2 BCt-UCDATA-SAP Primitives and Parameters . 12g35.2.2 Navigational Interface Service Access Points. 12g35.2.2.1 BCt-NAV-SAP (Maritime and Land-Mobile Class UE Only) 12g35.2.2.2 BCt_NAV_SAP Inter
12、face with avionics (Aeronautical Class UE Only) 13g35.2.3 Control Plane SAPs 14g35.2.3.1 STATUS-SAP Primitives and Parameters 14g35.2.3.2 BCt-COM-SAP Primitives and Parameters 16g35.2.3.3 CBCt-SAP Primitives and Parameters 16g36 Bearer Control Architecture . 17g36.1 Bearer Control Architecture - UE
13、Side . 17g36.2 Overview of Functional Entities in the Bearer Control Layer 17g36.2.0 General 17g36.2.1 Bearer Control Manager (BCtM) 18g36.2.1.0 General 18g36.2.1.1 System Information Broadcast Handling Unit 18g36.2.1.2 Common Signalling Handler (COM_BCt) 18g36.2.2 UE Bearer Control Unit (UE_BCt) .
14、19g36.2.2.1 UE BCt User Plane Handling Function . 19g36.2.2.2 Queue Status Reporting . 20g36.2.2.3 Return Schedule Processing 20g36.2.2.4 Transmit Burst Assembly 20g36.2.2.5 Bearer Transmit Buffer (Bearer_Tx) . 21g36.2.2.6 Bearer Receive Buffer (Bearer_Rx) 21g37 Bearer Control Management (BCT-M) Beh
15、aviour 21g37.1 Physical Bearer Management . 21g37.1.1 Forward Bearer Configuration and Initial Bearer Scan 21g37.1.1.0 General 21g37.1.1.1 Global_Scan process . 21g37.1.1.2 Default_Scan process 22g37.1.2 Forward Bearer Frequency Control within a Bearer Control 22g37.1.2.1 Retuning a population of UE
16、s . 22g3ETSI ETSI TS 102 744-3-2 V1.1.1 (2015-10) 4 7.1.2.2 Relocation of a specific UE . 22g37.1.3 Forward bearer synchronization loss 22g37.1.4 Forward bearer Doppler Compensation (Aeronautical Class UEs only) 23g37.1.5 Return Bearer Doppler Compensation (Aeronautical Class UE Only) . 23g37.1.6 Re
17、turn bearer frequency correction (Land-Mobile and Maritime Class UEs) 23g37.2 System Information Broadcast Handling . 23g37.2.1 Storage of System Information . 23g37.2.2 Acquisition of System Information . 23g37.2.3 System Information Index - UE Behaviour 23g37.2.4 Wrap Around, Instances and Version
18、 Number Range 26g37.3 Common Signalling (Com_BCt) Procedures . 26g37.4 Connection Control Operations 27g37.4.0 General 27g37.4.1 Connection Set-up Operations 27g37.4.2 Connection QoS Control . 27g37.4.3 Connection Release Operations 27g37.4.4 Handover Operations 28g37.5 Timing Control Operation 28g3
19、7.5.1 Principles of timing control operation 28g37.5.2 Primary and Secondary Timing Modes 29g37.5.3 Transition between Primary and Secondary Timing modes . 29g37.5.4 Aeronautical Class UE without GPS 29g37.6 Sleep Mode Operations 29g38 Bearer Control User Plane (UE-BCT) Behaviour 31g38.1 Ciphering O
20、perations . 31g38.1.0 General 31g38.1.1 Input Parameters to the Ciphering Algorithm . 32g38.1.1.1 CK . 32g38.1.1.2 COUNT-C . 32g38.1.1.3 TBCNID 33g38.1.1.4 DIRECTION . 33g38.1.1.5 LENGTH . 33g38.1.2 Initialization of Keystream Generator. 33g38.1.3 Synchronization of ciphering 33g38.2 Queue Status Re
21、porting 34g38.2.0 General 34g38.2.1 Status SDU Queue Reporting Mechanisms 34g38.2.1.0 General 34g38.2.1.1 Principle of Operation . 35g38.2.1.2 Data Status Update 35g38.2.1.3 Definition of QueueSize parameters sent by Connection Layer . 36g38.2.1.4 Processing of Status Update 36g38.2.1.5 Status SDU G
22、eneration . 37g38.2.1.5.0 General 37g38.2.1.5.1 Criterion A . 39g38.2.1.5.2 Criterion B . 40g38.2.1.6 Status SDU Control . 42g38.2.1.6.1 Status Ack 42g38.2.1.6.2 Status SDU Control Mechanisms 42g38.2.1.6.3 Status Reporting Timers 42g38.2.2 QLen SDU Queue Status Reporting Mechanism 43g38.2.3 QRate SD
23、U Queue Status Reporting Mechanism . 44g38.3 Return Schedule Processing . 45g38.3.1 General Concept of Operation 45g38.3.2 Return Schedule Description 46g38.3.3 Position of Return Schedules 47g38.3.4 Dedicated Reservation Access 49g38.3.4.1 Dedicated Return Bearer (normal) operation 49g38.3.4.2 Rese
24、rved (Unused) Slots . 49g38.3.5 Shared Reservation Access. 49g38.3.6 Controlled Random Access 51g3ETSI ETSI TS 102 744-3-2 V1.1.1 (2015-10) 5 8.3.7 Contention Access 52g38.3.8 Dedicated Return Bearer (High Data Rate) operation 52g38.4 Transmit Burst Assembly . 52g38.4.0 General 52g38.4.1 Usage of De
25、dicated Reservation Slots 53g38.4.1.1 Multiplexing of Data and Queue Status Reporting in Dedicated Reservations . 53g38.4.1.2 DTX Operation . 55g38.4.1.3 Enhanced ISDN Data Transmission 55g38.4.2 Shared Reservation Access . 56g38.4.2.1 Multiplexing of Data and Queue Reporting information in Shared R
26、eservations . 56g38.4.2.2 DTX operation 57g38.4.3 Controlled Random Access 57g38.4.3.1 General Principles of operation . 57g38.4.3.1.0 Overview . 57g38.4.3.1.1 Initiation of transmission . 58g38.4.3.1.2 Continuation of transmission . 58g38.4.3.2 Multiplexing of Data and Queue Status Reports in Contr
27、olled Random Access 58g38.4.3.3 Untimed operation of Controlled Random Access 59g38.4.4 Contention slot usage 59g38.4.4.1 General Principles of operation . 59g38.4.4.2 Contention Slot Usage Backoff mechanisms 59g38.4.4.3 Contention Slot Usage in Untimed Access Mode . 60g38.4.4.4 Queue Status Reporti
28、ng in contention slots 61g38.4.4.5 Transmit_Schedule Process (Informational) . 63g38.4.4.6 Create_slot Process . 63g38.5 Return Link Adaptation 65g38.5.0 Overview 65g38.5.1 General Principles of Operation 65g38.5.1.0 Overview . 65g38.5.1.1 Basic Operation Principle . 65g38.5.1.2 Bearer Table 66g38.5
29、.1.2.1 Bearer Table Usage . 66g38.5.1.2.2 Extensions to Bearer Table Usage for mobile UE classes . 68g38.5.1.2.3 Maximum Code Rate Limitations . 68g38.5.2 Dedicated Reservation and Contention Access Modes . 68g38.5.2.1 Initial Contention Mode Access 68g38.5.2.2 Code rate selection in transmission sc
30、hedule 69g38.5.3 Shared Reservation and Controlled Random Access Mode 69g38.5.3.0 General 69g38.5.3.1 Shared Reservation Access . 69g38.5.3.2 Controlled Random Access Return Link Adaptation 69g38.5.4 Dedicated Return Bearers (High Data Rate Operation) 70g38.6 Forward Link Adaptation . 70g38.6.1 Shar
31、ed Access Forward Bearers . 70g38.6.1.1 General principles . 70g38.6.1.2 Measuring Forward Link Quality 70g38.6.1.3 C/No Reporting . 71g38.6.1.4 Code Rate Selection 71g38.6.1.5 Sleep Mode . 72g38.6.2 Variable Modulation Index Shared Access Bearers (FR80T2.5X4-5B, FR80T5X4-5B) . 72g38.6.2.1 General p
32、rinciples . 72g38.6.2.2 Signalling of forward link quality reports . 72g38.6.3 Dedicated Forward Bearers (FR80T2.5X16/32/64, FR80T5X16/32/64) 72g38.7 Receiver Processing (Bearer_Rx) . 73g38.8 Transmit Processing (Bearer_Tx) . 75g38.8.0 General 75g38.8.1 Dedicated Reservation and Contention Mode Burs
33、ts . 75g38.8.1.1 BCtPDU Addressing mechanisms 75g38.8.1.2 CRC generation and Burst Formatting 75g38.8.1.3 ISDN Specific Behaviour 75g38.8.1.4 Physical Layer Parameters 76g38.8.2 Shared Reservation and Controlled Random Access Mode 76g3ETSI ETSI TS 102 744-3-2 V1.1.1 (2015-10) 6 8.8.2.1 Addressing me
34、chanisms . 76g38.8.2.2 CRC generation and Burst Formatting 76g38.8.2.3 Continuation Burst signalling 76g38.8.2.4 CW Acquisition sequence generation . 76g38.8.2.5 Physical Layer Parameters 76g38.8.2.5.0 General 76g38.8.2.5.1 Frequency Offsets 77g38.8.2.5.2 Transmit Power Levels 77g38.8.2.5.3 Timing O
35、ffsets . 77g39 Timing And Frequency Offset Operations . 77g39.1 GPS Operations 77g39.1.0 General 77g39.1.1 GPS Ephemeris information . 78g39.2 Doppler Frequency Compensation (Aeronautical UE Classes) 78g39.3 Timing Offset Calculations 79g39.3.1 Return Channel Timing Control in the RNC 79g39.3.1.0 Ge
36、neral 79g39.3.1.1 Satellite State Vector management . 79g39.3.1.2 State Vector Signalling . 79g39.3.1.3 Satellite State Vector Formatting 80g39.3.1.4 Estimated Time Of Arrival Determination 81g39.3.1.5 UE Timing Offset Management 82g39.3.1.6 Beam Parameters . 82g39.4 UE Return Channel Timing Operati
37、ons . 83g39.4.0 General 83g39.4.1 Variable definitions. 83g39.4.2 Entry: (PROCESS) . 84g39.4.3 UEPOS_Sync: (PROCESS) 84g39.4.4 NO_UEPOS_Sync: (PROCESS) 85g39.4.5 UEPOS_Available: (PROCESS) 85g39.4.6 NO_UEPOS: (PROCESS) 86g39.4.7 State_Vector_Update: (PARALLEL PROCESS) . 87g39.4.8 RNC_SID_Update: (PA
38、RALLEL PROCESS) . 87g39.4.9 Elapsed_Time_Monitor: (PARALLEL PROCESS) . 88g39.4.10 Beam_Delay_Range_Update: (PARALLEL PROCESS) . 88g39.4.11 Get_UEPOS (FUNCTION) 88g39.4.12 Calc_SID_UEPOS (FUNCTION) 90g39.4.13 Check_SID_Calc (FUNCTION) . 91g39.4.14 Do_RACH (FUNCTION) . 92g39.4.15 Wait_RNC_Resp (FUNCTI
39、ON) . 92g39.4.16 Check_RNC_Resp (FUNCTION) 92g39.4.17 Calc_Req_Con_Slots (FUNCTION) 93g3Annex A (informative): Process Variables And Objects . 94g3A.1 Bearer Control Constants . 94g3A.2 Connection Related Parameters 94g3A.3 Process Constants and Variables 96g3History 98g3ETSI ETSI TS 102 744-3-2 V1.
40、1.1 (2015-10) 7 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: “Intel
41、lectual 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, includi
42、ng 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
43、been produced by ETSI Technical Committee Satellite Earth Stations and Systems (SES). The present document is part 3, sub-part 2 of a multi-part deliverable. Full details of the entire series can be found in ETSI TS 102 744-1-1 i.1. Modal verbs terminology In the present document “shall“, “shall not
44、“, “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 when used in direct cita
45、tion. Introduction This multi-part deliverable (Release 1) defines a satellite radio interface that provides UMTS services to users of mobile terminals via geostationary (GEO) satellites in the frequency range 1 518,000 MHz to 1 559,000 MHz (downlink) and 1 626,500 MHz to 1 660,500 MHz and 1 668,000
46、 MHz to 1 675,000 MHz (uplink). ETSI ETSI TS 102 744-3-2 V1.1.1 (2015-10) 8 1 Scope The present document defines the Bearer Control Layer (BCt) operation of the Family SL satellite radio interface between the Radio Network Controller (RNC) and the User Equipment (UE) used in the satellite network. T
47、he Bearer Control Layer (BCt) peer-to-peer interface is described in ETSI TS 102 744-3-1 8. 2 References 2.1 Normative 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 versio
48、n 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 might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included i
49、n 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. 1 ETSI TS 133 102: “Universal Mobile Telecommunications System (UMTS); 3G security; Security architecture (3GPP TS 33.102 Release 4)“. 2 ETSI TS 133 105: “Universal Mobile Telecommunications System (UMTS); Cryptographic algorithm requirements (3GPP TS 33.105 Release 4)“. 3 ETSI TS 135 201: “Universal Mobile Telecommunications System (UMTS); Specification of the 3GPP confiden
