section link layer protocols and services ：部分，链路层协议和服务

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1、IncludeschangesfromAppendixG1ofWG-M/2MANUALONDETAILEDTECHNICALSPECIFICATIONSFORTHEVDLMODE4DIGITALLINKIncludeschangesinAMCPWG-M2AppendixG121January2002NOTANOFFICIALICAODOCUMENT!!DRAFTIncludeschangesfromAppendixG1ofWG-M/2TABLEOFCONTENTS1.SECTIONLINKLAYERPROTOCOLS

2、ANDSERVICES81.1GENERALINFORMATION81.1.1Functionality81.1.2Services81.1.2.1Connection-oriented81.1.2.2Connectionless81.1.3Acronyms,abbreviationsandparametersymbols81.2MACSUBLAYER161.2.1MACsublayerservices161.2.2MACsublayerparameters161.2.2.1ParameterM1(numberofs

3、lotspersuperframe)171.2.2.2ParameterM2incandM2limit(MAClayercontrolparametersfornetworkentry)171.2.3Timesynchronization181.2.3.1Primary181.2.3.2Secondary181.2.3.3AlignmenttoUTCsecond181.2.3.4Tertiary181.2.3.5Dataqualitylevel191.2.4Slotidle/busynotification191.2

4、.4.1Slotidledetection191.2.4.2Slotbusydetection191.2.4.3Slotoccupieddetection191.2.5Transmissionprocessing201.2.6Receivedtransmissionprocessing201.3VSSSUBLAYER201.3.1Services201.3.1.1Multipleaccess201.3.1.2Errordetection211.3.1.3Channelcongestion211.3.2Burstfor

5、mat211.3.2.1Versionnumber221.3.2.2Sourceaddress231.3.2.3MessageID231.3.2.4Informationfield251.3.2.5Reservationfields251.3.3VSSsublayerparameters261.3.3.1ParameterVS1(numberofgroundquarantinedslots)271.3.3.2ParameterVS2(minimumCCIperformance)271.3.3.3ParameterVS

6、4(quarantineslotre-userange)271.3.4VSSqualityofserviceparameters271.3.4.1ParameterQ1(priority)281.3.4.2ParametersQ2atoQ2d(slotselectionrangeconstraintforleveln)291.3.4.3ParameterQ3(replacequeueddata)291.3.4.4ParameterQ4(numberofavailableslots)291.3.4.5Parameter

7、sQ5(VSSretransmissionparameters)29IncludeschangesfromAppendixG1ofWG-M/21.3.5Receivedtransmissionprocessing291.3.6Reservedaccessprotocolspecification301.3.6.1Reservationtable301.3.6.2Selectingslotsfortransmissionorreservation311.3.6.3Reservedtransmissions341.3.6

8、.4Groundquarantine341.3.6.5Reservationconflicts351.3.7Randomaccessprotocolspecification371.3.7.1Randomaccessparameters371.3.7.2Randomaccessprocedures371.3.8Fixedaccessprotoc