ETSI TS 102 189-2-2004 Satellite Earth Stations and Systems (SES) Regenerative Satellite Mesh - A (RSM-A) SMAC SLC layer specification Part 2 Satellite Medium Access Control and Sa.pdf

1、 ETSI TS 102 189-2 V1.1.2 (2004-07)Technical Specification Satellite Earth Stations and Systems (SES);Regenerative Satellite Mesh - A (RSM-A);SMAC/SLC layer specification;Part 2: Satellite Medium Access Control andSatellite Link Control detailed specificationETSI ETSI TS 102 189-2 V1.1.2 (2004-07) 2

2、 Reference RTS/SES-BSM 211-2 Keywords air interface, broadband, IP, multimedia, satellite 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

3、 de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such version

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6、ed by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2004. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPH

7、ON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TS 102 189-2 V1.1.2 (2004-07) 3 Contents Intellectual Property Rights9 Foreword.9 1 S

8、cope 10 2 References 10 3 Definitions and abbreviations.10 3.1 Definitions10 3.2 Abbreviations .11 4 SMAC/SLC overview 12 4.1 General aspects.12 4.2 Terminal identities and addresses.12 4.2.1 ST Site ID .12 4.2.2 Electronic Serial Number (ESN) 12 4.2.3 Source ID12 4.2.4 Bandwidth Control ST ID (BCST

9、ID) .13 4.2.5 Destination MAC Address13 4.2.6 Destination Sub-Address (DSA).13 4.2.7 Multicast Group ID (MGID).13 4.2.8 Satellite Next Hop Address (SNHA) 13 5 Satellite Link Control (SLC) sub-layer 14 5.1 Overview 14 5.1.1 Modes of operation.16 5.1.1.1 SLC-unack mode.16 5.1.1.2 SLC-ack mode.17 5.1.1

10、.3 SLC-transparent mode 17 5.1.2 Procedure description .17 5.1.2.1 Procedures at transmitting side .17 5.1.2.2 Procedures at receiving side17 5.1.3 Backwards compatibility requirements.18 5.2 Compression.18 5.3 Security procedures 18 5.4 Cyclic Redundancy Check .18 5.5 Special messaging procedures20

11、 5.6 Segmentation and reassembly 20 5.6.1 Session creation 20 5.6.1.1 Session creation on the transmit side 20 5.6.1.2 Session creation on the receive side20 5.6.2 Segmentation 21 5.6.2.1 Extended Data Unit (EDU) construction.21 5.6.2.2 Segmentation rules22 5.6.3 Reassembly.23 5.6.4 Session terminat

12、ion.24 5.6.4.1 Session termination on the transmit side.24 5.6.4.2 Session termination on the receive side 24 5.7 Ack-mode.24 5.8 Diagnostic test procedure .25 5.8.1 Overview 25 5.8.2 Interfaces, SAPs, service definitions and service primitives 25 5.8.3 SLC peer-to-peer delay tests.25 5.8.3.1 Initia

13、ting ST procedure description.25 5.8.3.2 Receiving ST procedures 25 5.8.4 Satellite delay tests26 5.8.4.1 Initiating ST procedure description.26 5.8.4.2 Receiving ST procedures 26 ETSI ETSI TS 102 189-2 V1.1.2 (2004-07) 4 5.9 Interfaces, SAPs, service definitions, and service-primitives.27 5.9.1 Int

14、erfaces with higher layers: IP-SLC.27 5.9.1.1 Service Access Point-SLC-SAP27 5.9.1.2 Service definitions.27 5.9.1.3 Service primitives .27 5.9.1.3.1 SLC_UNITDATA .28 5.9.1.3.2 Primitive parameters28 5.9.2 Interface with specific ST entities.28 5.9.3 Logical interface with peer layer 28 5.9.4 Satelli

15、te Dependent Adaptation Function .29 6 Medium Access Control sub-layer .30 6.1 Overview 30 6.1.1 Modes of operation.30 6.1.1.1 BoD mode .30 6.1.1.2 HVUL mode30 6.2 Interfaces, SAPs, service definitions, and service primitives .31 6.2.1 Interface with physical layer: MAC-PHY 31 6.2.1.1 Service Access

16、 Point.31 6.2.1.2 Service used 31 6.2.2 Interfaces with layer management entities31 6.2.3 Logical interfaces with peer layer.31 6.3 MAC procedures 31 6.3.1 General procedures .31 6.3.1.1 Network.31 6.3.1.1.1 System information broadcasting 31 6.3.2 Medium access procedures .32 6.3.2.1 Initial access

17、 procedure.32 6.3.3 Bandwidth control procedures 32 6.3.3.1 Volume request protocol.33 6.3.3.1.1 Mapping of downlink destination ID into destination region IDs .34 6.3.3.2 Rate request protocol.34 6.3.3.3 Rate modification procedure .35 6.3.3.4 Rate de-allocation procedure.35 6.3.4 Bandwidth managem

18、ent procedures .36 6.3.4.1 Description of UDTS 36 6.3.4.1.1 Constant Rate (CR)36 6.3.4.1.2 Constant Rate With Burst (CRWB).36 6.3.4.1.3 High Priority Burst/Normal Priority Burst 36 6.3.4.1.4 Low Volume Low Latency (LVLL) 37 6.3.4.1.5 Ack-Return UDTS.37 6.3.4.2 Description of PDS .37 6.3.4.2.1 High p

19、riority rate/Low priority rate.37 6.3.4.2.2 High priority volume/Normal priority volume 37 6.3.4.2.3 Slotted Aloha (SA) 37 6.3.4.2.4 Persistent Aloha (PA) 37 6.3.4.3 UDTS to PDS mapping.38 6.3.4.3.1 Constant Rate UDTS mapping 38 6.3.4.3.2 High Priority Burst/Normal Priority Burst UDTS mapping 38 6.3

20、.4.3.3 Constant Rate with Burst mapping38 6.3.4.3.4 Low Volume Low Latency mapping.38 6.3.4.3.5 Ack Return UDTS mapping 39 6.3.4.4 Management Transport Services (MTS) .39 6.3.4.5 Queue servicing and flow control procedures.40 6.3.4.5.1 Servicing of rate queues 40 6.3.4.5.2 Servicing of volume queues

21、 40 6.3.4.5.3 Queue servicing regulation procedures .41 6.3.5 Contention channel access procedures43 6.3.5.1 General43 6.3.5.1.1 Types of access protocols43 6.3.5.1.2 Success or failure indication43 6.3.5.1.3 Retransmission 43 ETSI ETSI TS 102 189-2 V1.1.2 (2004-07) 5 6.3.5.1.4 Mapping transmission

22、probability to potential contention transmission opportunity44 6.3.5.2 Slotted-Aloha channel access44 6.3.5.2.1 Types of Slotted Aloha channels .45 6.3.5.2.2 State machine definitions.45 6.3.5.2.3 State machine 45 6.3.5.2.4 Mapping transmission probability to potential SA transmission opportunity .4

23、7 6.3.5.2.5 Channel selection.47 6.3.5.2.6 Slot selection .47 6.3.5.3 Persistent Aloha channel access procedure .48 6.3.5.3.1 Introduction .48 6.3.5.3.2 State machine 49 6.3.5.3.3 Channel selection.51 6.3.5.3.4 Slot selection algorithm for PACTO .52 6.3.5.4 Persistent Aloha channel access procedure-

24、one slot per frame.53 6.3.5.4.1 Introduction .53 6.3.5.4.2 State machine 53 6.3.5.4.3 Channel selection.54 6.3.5.4.4 Slot selection algorithm for PACTO .55 6.3.5.5 Variables .55 6.3.6 Packet filtering procedures .55 6.3.6.1 Packet discrimination procedure .55 6.3.6.1.1 Data packets 56 6.3.6.1.2 Sign

25、alling packets56 7 Message functional definition and contents .57 7.1 General .57 7.1.1 Packet order of presentation57 7.1.2 Order of bits within a field57 7.2 MAC block format .58 7.2.1 MAC downlink block format58 7.2.2 MAC uplink block format.58 7.3 Packet header format 59 7.3.1 Satellite routing

26、field 59 7.3.1.1 Congestion bit field.59 7.3.1.2 Drop class field .60 7.3.1.3 Destination type field 60 7.3.1.4 Downlink destination ID field.60 7.3.2 ST Identification field.61 7.3.2.1 Destination Sub-Address field 61 7.3.2.2 Aloha field.63 7.3.2.3 SLC mode field .64 7.3.2.4 Source ID field 64 7.4

27、SLC packet data unit format.64 7.4.1 SLC unack mode header format .64 7.4.1.1 Header for unfragmented (whole) data packet 65 7.4.1.2 Header for first segment data packet.65 7.4.1.3 Header for middle segment data packet 65 7.4.1.4 Header for last segment data packet65 7.4.2 SLC ack mode header format

28、 .65 7.4.3 SLC header field definitions .66 7.4.3.1 Session number field.66 7.4.3.2 First and last bits fields .66 7.4.3.3 Packet sequence number field.66 7.4.3.4 Cmp field 66 7.4.3.5 Frm field66 7.4.3.6 Sec field 66 7.4.3.7 CRC type field 67 7.4.3.8 Bytes in last segment field 67 7.4.3.9 E bit fiel

29、d.67 7.4.4 SLC extension header format67 7.4.4.1 Extension header length field967 7.4.4.2 Extension header type .67 ETSI ETSI TS 102 189-2 V1.1.2 (2004-07) 6 7.4.4.3 Extension header value .68 7.4.5 Frame header format.68 7.4.6 Security header format68 7.4.6.1 A/B field68 7.4.6.2 Pad count field 68

30、7.4.6.3 Initial vector field69 7.4.7 Null packet format 69 7.5 MAC/SLC message types 69 7.5.1 Common field definitions .70 7.5.1.1 Spare fields70 7.5.1.2 Carrier mode field .70 7.5.1.3 Rate .71 7.5.1.4 D/C field71 7.5.1.5 Sub band designator 71 7.5.1.6 Carrier designator71 7.5.1.7 Channel Group ID.7

31、1 7.5.1.8 Bandwidth Control ST ID .71 7.5.1.9 A/B key .71 7.5.1.10 Bandwidth control message common fields71 7.5.1.10.1 Message type .72 7.5.1.10.2 IF version.72 7.5.1.10.3 Number assignments/acknowledgements/spare (5 bits) 72 7.5.1.10.4 Uplink frame number 72 7.5.1.10.5 Number of contention channel

32、s/spare .72 7.5.1.11 TOD check 72 7.5.1.11.1 Uplink frame number TOD check relationship .72 7.5.1.12 Padding byte73 7.5.2 Transmission Information Packet message.73 7.5.2.1 Packet header field values.75 7.5.2.2 Transmission information packet message field definition.75 7.5.2.2.1 Satellite Network I

33、D75 7.5.2.2.2 CM bit .75 7.5.2.2.3 TM bit75 7.5.2.2.4 CP bit.75 7.5.2.2.5 TP bit.75 7.5.2.2.6 Current PTP slot number .76 7.5.2.2.7 Transition PTP slot number.76 7.5.2.2.8 TDM frame transition superframe number76 7.5.2.2.9 TDM frame transition downlink frame number 76 7.5.2.2.10 Future spare 1 and p

34、rotocol switch76 7.5.2.2.11 Future spare 2 and protocol switch76 7.5.2.2.12 TOD to UTC offset77 7.5.2.2.13 Absolute superframe count77 7.5.2.2.14 Ephemeris data 77 7.5.2.2.15 Nb cont 77 7.5.2.2.16 Dedicated contention channel information77 7.5.3 ULPC status message format77 7.5.3.1 ULPC status messa

35、ge field definition .80 7.5.3.1.1 Carrier groupings.80 7.5.3.1.2 Uplink frame number field 80 7.5.3.1.3 Superframe number field.80 7.5.3.1.4 Noise measurement field .80 7.5.3.1.5 Time slot measurement field .80 7.5.4 Bandwidth request message81 7.5.4.1 Authorization information.81 7.5.4.2 Frame Coun

36、t82 7.5.4.3 Bandwidth Request Header.82 7.5.4.3.1 Uplink Cell ID .82 7.5.4.3.2 Number of Requests 82 7.5.4.3.3 Void.82 7.5.4.3.4 IF V .82 7.5.4.3.5 BC83 ETSI ETSI TS 102 189-2 V1.1.2 (2004-07) 7 7.5.4.3.6 AA bit83 7.5.4.4 Bandwidth request data .83 7.5.4.4.1 Follow-up bit .83 7.5.4.4.2 Sub band desi

37、gnator/Spare 83 7.5.4.4.3 Destination region ID 83 7.5.4.4.4 Request action .83 7.5.4.4.5 Number of slots .84 7.5.4.4.6 Carrier designator/spare.84 7.5.4.4.7 Request ID.84 7.5.4.5 Integrity check.85 7.5.5 Bandwidth assignment message .85 7.5.5.1 Assignment field .85 7.5.5.1.1 TSMF 86 7.5.5.1.2 Start

38、 index86 7.5.5.1.3 Number of consecutive indices86 7.5.5.1.4 Last 86 7.5.5.1.5 Number of frames86 7.5.5.1.6 Request ID.86 7.5.5.1.7 Assignment integrity check .86 7.5.6 Negative acknowledgement message .86 7.5.6.1 Acknowledgement fields 1-16 87 7.5.6.1.1 Cause code.88 7.5.6.1.2 Request ID.89 7.5.7 D

39、ynamic contention channel assignment message .89 7.5.7.1 Dynamic contention assignment field definition.90 7.5.8 Void 91 7.5.9 SLC test messages 91 7.5.9.1 Version Number91 7.5.9.2 R/C 91 7.5.9.3 Message type.91 7.5.9.4 Sequence number 91 7.5.9.5 Test Id .91 7.5.9.6 Packet type 92 7.5.9.7 Time sent.

40、92 7.5.9.7.1 SLC peer-to-peer delay timestamp 92 7.5.9.7.2 Satellite delay timestamp.92 7.5.9.8 Time received93 7.5.9.8.1 SLC peer-to-peer delay timestamp 93 7.5.9.8.2 Satellite delay timestamp.93 7.5.9.9 Return MAC address.93 7.5.9.10 Number of designated addresses .93 7.5.9.11 List of recipients93

41、 7.5.9.12 Padding bytes 94 8 Configurable parameters 94 8.1 SLC un-ack mode configurable parameters .94 8.1.1 Timers.94 8.2 SLC ack-mode configurable parameters 94 8.3 SLC CRC configurable parameters 94 8.4 MAC configurable parameters .95 8.4.1 Bandwidth control parameters 95 8.4.2 Contention access

42、 protocol parameters.96 8.4.3 Miscellaneous MAC parameters.96 Annex A (normative): Uplink Frame, Beams and Channels97 A.1 Uplink frame structure, beams and channels97 Annex B (informative): Message sequence diagrams98 B.1 Message sequence diagrams.98 B.1.1 Rate request - Positive response .98 B.1.2

43、Rate request - Negative response .98 ETSI ETSI TS 102 189-2 V1.1.2 (2004-07) 8 B.1.2.1 Rate request - Negative response due to insufficient bandwidth 99 B.1.3 Message corruption/Lost 100 B.1.4 Rate request - Changes in the traffic pattern 100 B.1.5 Rate de-allocation.101 B.1.6 Volume request 101 B.1

44、.7 Volume request - partial assignment 102 Annex C (informative): Void .103 Annex D (normative): Satellite terminal capability 104 D.1 ST basic capability set104 Annex E (informative): CRC Examples.105 Annex F (informative): Bibliography.106 History 107 ETSI ETSI TS 102 189-2 V1.1.2 (2004-07) 9 Inte

45、llectual 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 Property Rig

46、hts (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:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including I

47、PR 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 been

48、 produced by ETSI Technical Committee Satellite Earth Stations and Systems (SES). The present document is part 2 of a multi-part deliverable covering Regenerative Satellite Mesh - A (RSM-A) air interface SMAC/SLC layer specification, as identified below: Part 1: “General description“; Part 2: “Satel

49、lite Medium Access Control and Satellite Link Control detailed specification“; Part 3: “ST-SAM interface specification“. ETSI ETSI TS 102 189-2 V1.1.2 (2004-07) 101 Scope The present document is the detailed specification of the SMAC/SLC layer protocol for the TC-SES BSM Regenerative Satellite Mesh - A (RSM-A) air interface family. In particular, it contains SMAC and SLC procedures, messages and message formats. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either sp