1、 ETSI TS 102 744-3-4 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 4: Bearer Connection Layer Operation TECHNICAL SPECIFICATION ETSI ETSI TS 102 744-3-4 V1.1.1 (2015-10) 2 Re
2、ference DTS/SES-00299-3-4 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
3、la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document
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6、ease send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written pe
7、rmission of ETSI. The content of the PDF version shall not be modified without 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
8、 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 the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 1
9、02 744-3-4 V1.1.1 (2015-10) 3 Contents Intellectual Property Rights 5g3Foreword . 5g3Modal verbs terminology 5g3Introduction 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 7g33 Symbols and abbreviations . 7g33.1 Symbols 7g33.2 Abbreviations . 7g34 General Arch
10、itecture 7g34.0 Overview 7g34.1 Bearer Connection Layer Entities 8g34.1.0 General 8g34.1.1 Bearer Connection Manager (BCnM) . 9g34.1.2 Acknowledged Mode Data Handler (AM_DH) 10g34.1.3 Transparent Mode Data Handler (TM_DH) . 10g34.1.4 Numbered Frame Data Handler (NUM_DH) . 10g34.1.5 Common Signalling
11、 Data Handler (COM_DH) . 10g34.2 Interfaces to Upper Layers . 10g34.2.1 User Plane Interfaces 10g34.2.1.0 General 10g34.2.1.1 Acknowledged Mode (AM)-SAP Primitives and Parameters . 11g34.2.1.2 Transparent Mode (TM) SAP Primitives and Parameters . 11g34.2.1.3 Unacknowledged Mode (UM) SAP Primitives a
12、nd Parameters 12g34.2.2 Control Plane Interfaces 12g34.2.2.0 General 12g34.2.2.1 CBCn-SAP Primitives and Parameters . 12g34.2.2.2 COM-SAP Primitives and Parameters 15g34.3 Interfaces to the Lower Layer . 15g35 Bearer Connection Operations . 16g35.0 General . 16g35.1 Bearer Connection Manager . 16g35
13、.2 Quality of Service (QoS) Control Function 16g35.3 Acknowledged Mode Operation . 17g35.3.0 General 17g35.3.1 AM_DH Architecture . 17g35.3.1.0 Overview . 17g35.3.1.1 Transmit Path Processing 18g35.3.1.2 Receive Path Processing . 19g35.3.1.3 AM_DH Control Unit . 19g35.3.1.4 Transmit Path Processing
14、in the Suspended State (UESS AM_DH only) 20g35.3.2 The ARQ Mechanism . 20g35.3.3 Data Packet Structures 21g35.3.3.0 General 21g35.3.3.1 Definition of the I-Frame 21g35.3.3.2 Definition of the RR-Frame 21g35.3.3.3 Definition of the SREJ-Frame . 22g35.3.3.4 Definition of the Sub-Segment Frame. 22g35.3
15、.4 Sending I-Frames 22g35.3.5 Receiving I-Frames. 23g35.3.6 Polling Mechanism . 23g35.3.6.0 General 23g3ETSI ETSI TS 102 744-3-4 V1.1.1 (2015-10) 4 5.3.6.1 ARQ Timer . 24g35.3.6.2 Sending a Poll . 24g35.3.6.3 Response to a Poll . 25g35.3.6.4 Response to a Poll Response . 25g35.3.7 Transmit Behaviour
16、 26g35.3.7.0 General 26g35.3.7.1 Support for final-seg-retx-allowed (fsr) Mode 29g35.3.8 Receive Behaviour 29g35.3.8.0 General 29g35.3.8.1 RNC Support for final-seg-retx-allowed (“fsr“) Mode 30g35.3.9 Tx and Rx Window Size Control 32g35.3.10 Acknowledged Mode Timers 33g35.3.11 Example Retransmission
17、 Sequence 34g35.4 Transparent Mode Operations 36g35.4.0 General 36g35.4.1 Transparent Mode Timers . 37g35.5 Un-Acknowledged Mode Operations . 38g35.5.0 General 38g35.5.1 Un-Acknowledged Mode Timers . 39g35.6 Common Signalling Data Handler Operation 39g35.7 Ciphering Operation . 39g35.7.0 General 39g
18、35.7.1 Input Parameters to the Ciphering Algorithm . 40g35.7.1.0 General 40g35.7.1.1 CK . 40g35.7.1.2 COUNT-C . 40g35.7.1.3 TBCNID and BCNID 41g35.7.1.4 DIRECTION . 41g35.7.1.5 LENGTH . 41g35.7.2 Initialization of Keystream Generator. 41g35.7.3 Maintenance of COUNT-C . 41g35.7.4 MBMS Connections . 4
19、2g35.8 Handover Operations 42g3History 43g3ETSI ETSI TS 102 744-3-4 V1.1.1 (2015-10) 5 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 ET
20、SI 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:/ip
21、r.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 t
22、o 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 3, sub-part 4 of a multi-part deliverable. Full details of the entire series can be found in ETSI TS 102 744-1-1 i
23、.1. Modal verbs terminology In the present document “shall“, “shall not“, “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 no
24、t“ are NOT allowed in ETSI deliverables except when used in direct citation. 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
25、559,000 MHz (downlink) and 1 626,500 MHz to 1 660,500 MHz and 1 668,000 MHz to 1 675,000 MHz (uplink). ETSI ETSI TS 102 744-3-4 V1.1.1 (2015-10) 6 1 Scope The present document defines the Bearer Connection Layer operation of the Family SL satellite radio interface between the Radio Network Controlle
26、r (RNC) and the User Equipment (UE) used in the satellite network. The Bearer Connection Layer (BCn) peer-to-peer interface is described in ETSI TS 102 744-3-3 9. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version
27、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 might be found at
28、 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. 1 ETSI TS 125 322: “Universal Mobi
29、le Telecommunications System (UMTS); Radio Link Control (RLC) protocol specification (3GPP TS 25.322 Release 4)“. 2 ETSI TS 133 102: “Universal Mobile Telecommunications System (UMTS); 3G security; Security architecture (3GPP TS 33.102 Release 4)“. 3 ETSI TS 133 105: “Universal Mobile Telecommunicat
30、ions System (UMTS); Cryptographic algorithm requirements (3GPP TS 33.105 Release 4)“. 4 ETSI TS 135 201: “Universal Mobile Telecommunications System (UMTS); Specification of the 3GPP confidentiality and integrity algorithms; Document 1: f8 and f9 specifications (3GPP TS 35.201 Release 4)“. 5 ETSI TS
31、 102 744-1-3: “Satellite Earth Stations and Systems (SES); Family SL Satellite Radio Interface (Release 1); Part 1: General Specifications; Sub-part 3: Satellite Radio Interface Overview“. 6 ETSI TS 102 744-1-4: “Satellite Earth Stations and Systems (SES); Family SL Satellite Radio Interface (Releas
32、e 1); Part 1: General Specifications; Sub-part 4: Applicable External Specifications, Symbols and Abbreviations“. 7 ETSI TS 102 744-3-1: “Satellite Earth Stations and Systems (SES); Family SL Satellite Radio Interface (Release 1); Part 3: Control Plane and User Plane Specifications; Sub-part 1: Bear
33、er Control Layer Interface“. 8 ETSI TS 102 744-3-2: “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“. 9 ETSI TS 102 744-3-3: “Satellite Earth Stations and Sys
34、tems (SES); Family SL Satellite Radio Interface (Release 1); Part 3: Control Plane and User Plane Specifications; Sub-part 3: Bearer Connection Layer Interface“. 10 ETSI TS 102 744-3-5: “Satellite Earth Stations and Systems (SES); Family SL Satellite Radio Interface (Release 1); Part 3: Control Plan
35、e and User Plane Specifications; Sub-part 5: Adaptation Layer Interface“. 11 ETSI TS 102 744-3-6: “Satellite Earth Stations and Systems (SES); Family SL Satellite Radio Interface (Release 1); Part 3: Control Plane and User Plane Specifications; Sub-part 6: Adaptation Layer Operation“. ETSI ETSI TS 1
36、02 744-3-4 V1.1.1 (2015-10) 7 2.2 Informative 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 referen
37、ce document (including any amendments) 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 t
38、he user with regard to a particular subject area. i.1 ETSI TS 102 744-1-1: “Satellite Earth Stations and Systems (SES); Family SL Satellite Radio Interface (Release 1); Part 1: General Specifications; Sub-part 1: Services and Architectures“. 3 Symbols and abbreviations 3.1 Symbols For the purposes o
39、f the present document, the symbols given in ETSI TS 102 744-1-4 6, clause 3 apply. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in ETSI TS 102 744-1-4 6, clause 3 apply. 4 General Architecture 4.0 Overview The function of the satellite radio interface Bearer C
40、onnection Layer (BCn) is to provide a number of different data transport services to upper layers. Figure 4.1 illustrates the position of the Bearer Connection Layer within the Family SL air interface protocol stack. An overview of the radio interface layering and relationship to the Bearer Control
41、Layer is provided in ETSI TS 102 744-1-3 5, clause 4 and ETSI TS 102 744-3-3 9, clause 4. An overview of the Bearer Connection Layer operation is provided in ETSI TS 102 744-1-3 5, clause 6. Figure 4.1: Bearer Connection Layer Position in Protocol Stack (Control Plane Illustrated) ETSI ETSI TS 102 7
42、44-3-4 V1.1.1 (2015-10) 8 The Bearer Connection Layer is generic to the radio interface and is responsible for the following: Queuing; QoS Policing; QoS Monitoring; Segmentation and Re-assembly; Ciphering; and Selectable ARQ. The data transport services provided by the Bearer Connection Layer are us
43、ed to carry signalling and data PDUs across the satellite radio interface. Three main data transport modes are supported: Acknowledged Mode (AM) Transparent Mode (TM) Unacknowledged (Numbered Frame) Mode (UM) These are provided to the upper layers via a number of different service access points (SAP
44、). The control plane and user plane architecture of the Bearer Connection Layer is illustrated in Figure 4.2 and Figure 4.3 respectively. The following clauses describe the Bearer Connection Layer SAP primitives for the upper interface to the Adaptation Layer. The SAP primitives for the lower interf
45、ace to the Bearer Control Layer are described in ETSI TS 102 744-3-2 8. 4.1 Bearer Connection Layer Entities 4.1.0 General The Bearer Connection Layer consists of a Bearer Connection Manager and instances of one of four possible data handlers (COM_DH, AM_DH, NUM_DH and TM_DH) with their associated S
46、ervice Access Points (SAPs). The Control Plane of each UE consists of an AM_DH for the UE Specific Signalling connection, a COM_DH for managing the Common Signalling connection and a Bearer Connection Manager. On the RNC side, the Control Plane consists of multiple sets of AM_DH and Bearer Connectio
47、n Manager entities, one for each UE registered. It also has a COM_DH for each of the Primary Shared Access Bearer. ETSI ETSI TS 102 744-3-4 V1.1.1 (2015-10) 9 Figure 4.2: Bearer Connection Layer - Control Plane The User Plane of each UE consists of a Bearer Connection Manager and one data handler (e
48、ither TM_DH, NUM_DH or AM_DH) for each data connection that is set up. On the RNC side, the User Plane consists of multiple sets of these entities, one for each UE registered. Figure 4.3: Bearer Connection Layer - User Plane 4.1.1 Bearer Connection Manager (BCnM) The Bearer Connection Manager (BCnM)
49、 provides bearer connection management services to the Adaptation Layer via the CBCn-SAP. This includes the creation and removal of a particular connection, and the setting of its QoS parameters. BearerConnectionManagerSTATUS-SAPBCt-DATA-SAPAM-SAPCBCn-SAPAdaptation Layer -Control PlaneBearer Control LayerBearer ConnectionLayer - ControlPlaneAM_DH COM_DHCOM-SAPBCt-COM-SAPBearer ConnectionManager TM_DH NUM_DH AM_DH BCt-DATA-SAPAM-SAPUM-SAPTM-SAPAdaptation Layer - User PlaneBearer Control Layer BearerConnectionLayerSTATUS
