22100175040000clause67commentresolutionford4文档格式.docx
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22100175040000clause67commentresolutionford4文档格式.docx
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Thisdocumentcontainsresolutionsforthefollowingcomments:
77,78,84,94,128,134,136,141,142,145,165,259
Textmodificationforcommentresolutionisindicatedin[boldanditalicsencapsulatedinsquarebrackets].Forsomecommentsthereismorethanonemodificationrequired.
R0isanamendmenttoresolutionstocommentsagainstD4,thatareupdatedagainstthenumberingoftheD5draft(editorialinstructionsinR1areagainstnumbering/paginationinD5),inadditiontoresolutionforacoupleofnewcommentsinClause7.
R1-R3detailcommentresolutionmodificationsdiscussedintheNovember2010plenary.
Notice:
ThisdocumenthasbeenpreparedtoassistIEEE802.22.Itisofferedasabasisfordiscussionandisnotbindingonthecontributingindividual(s)ororganization(s).Thematerialinthisdocumentissubjecttochangeinformandcontentafterfurtherstudy.Thecontributor(s)reserve(s)therighttoadd,amendorwithdrawmaterialcontainedherein.
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Comment77/78/84
Severalcommentsarerelatedtoconsolidatingthefragmentation/packingsubheader.Theresolutiontothiscommentisprovidedtofacilitatediscussionofthedesignofthenewsubheader.Theothercommentsrelatedtothiswillthenberesolvedinturn.
TherearetwomajormodificationstotheFragmentation/Packingsubheader.One,istheconsolidationofthetwosubheaders.Two,itisremovalforsupportoftwodifferentcountingmethodsforcountingfragments.Wehavetwomethodsforcountingfragments,oneusedforwhenARQisappliedandwhenwhenARQisn’tapplied.
ItisoftheopinionoftheMACad-hocchairthatwedon’tneedtwodifferentmethods.Referringbackto802.16-2009,the3bitcountingmethodisoptional.So,therecommendationistoremoveit.WeshouldnotethatifaFragmentation/PackingsubheaderisaddedtoaPDUmappedtoaconnectionusingARQ,thethenTypefieldBit2(ExtendedType)shallbesetto1.
Also,notethattheARQfeedbacksubheaderisindependentofthefragmentation/packingprocess.IfpurposeofnewFragmentation/Packing,issettopacking(i.e.setto1),thentheARQFeedbacksubheaderisthe1stpackeditem.Thisisstatedin6.8.1.2.4.
[modifySection6.8.1.2.2asfollows]
[------------------------------------StartoftextModification---------------------------------------]
6.8.1.2.2Fragmentation/PackingSubheader
Table6—Fragmentation/Packingsubheaderformat
Syntax
Size
Notes
Fragmentation_Subheader_Format(){
Purpose
1bit
0=Fragmentationsubheader
1=Packingsubheader
FC
2bits
Indicatesthefragmentationstateofthepayload:
00=nofragmentation
01=lastfragment
10=firstfragment
11=continuing(middle)fragment
if(ARQ-enabledConnection){
BSN
10bits
SequencenumberofthefirstblockinthecurrentSDUfragment
Else
FSN
SequencenumberofthecurrentSDUfragment.Thisfieldincrementsbyone(modulo1024)foreachfragment,includingunfragmentedSDUs.
If(Purpose=1)
Length
11bits
LengthofSDUfragmentbeingpacked
Else
//if(Purpose=0)
Reserved
3bits
}
[------------------------------------EndoftextModification---------------------------------------]
[modifyTable110,pg87line1asfollows]
ElementID
Length
(bytes)
Value
Scope
2
1
Bit0:
Abilitytoreceiverequestspiggybackedwithdata
Bits1-7:
reserved(settozero)
CBC-REQ,CBC-RSP
Comment134
ThiscommentreflectsreformattingsometablesassociatedwiththeconfigurationofSCMrelatedmessageparameters.
[modifyTables166-173asfollows]
Table166—SCMEAPStart-MessageAttributes
KeySequenceNumber
4bits
AKSequenceNumber
Table167—SCMEAPTransfer-MessageAttributes
LengthofEAPPayload
16bits
LengthofEAPPayload(inoctets)
EAPPayload
Variable
ContainsEAPauthenticationData
Table168—SCMKey-Requestattributes
AKsequencenumber
SAID
Securityassociationidentifier-GSAIDformulticastorbroadcastservice
GroupKeyIndicator
0=thiskeyrequestisforaTEK
1=thisrequestisforaGTEK,onlyapplicableifSAIDreferstoaGSA.
CPERandom
64bits
A64bitrandomnumbergeneratedintheCPE.
Table169—SCMKey-Replyattributes
KeySequenceNumber
AKsequencenumber
SAID
Securityassociationidentifier-GSAIDformulticastorbroadcastservice.
OlderTEK/GTEK
128bits
OldergenerationTEK/GTEKrelevanttoSAID/GSAID
OlderTEK/GTEKSequenceNumber
SequenceNumberforoldergenerationofTEK/GTEK.ThismapstothevalueEKSfieldissettoinGMHofPDUencryptedwiththisTEK/GTEK.
RemaingLifetimeforOlderTEK/GTEK
24bits
RemainingtimeforolderTEK/GTEKinunitsof10msframes.
NewerTEK/GTEK
NewergenerationTEK/GTEK,relevanttoSAID/GSAID.
NewTEK/GTEKSequenceNumber
SequenceNumberfornewergenerationofTEK/GTEK.ThismapstothevalueEKSfieldissettoinGMHofPDUencryptedwiththisTEK/GTEK.
RemaingLifetimeforNewTEK/GTEK
RemaingingtimeforolderTEK/GTEKinunitsof10msframes.
CPERandom
ThesamerandomnumberincludedintheSCMKeyRequestmessage
BSRandom
Random#generatedbytheBS
Table170—SCMKey-Rejectattributes
Securityassociationidentifier
ConfirmationCode
8bits
Errorcode(see6.10.24)identifyingreasonforrejectionoftheSCMKey-Requestmessage.
AsamerandomnumberincludedintheSCMKeyRequestmessage
Table171—SCMGSA-Addattributes
MulticastSID
9bits
SIDofmulticastgroup
SAIDforGSAappliedtothemutlicastgroup
CryptographicSuiteforGTEKapplication&
transport
CryptographicsuitethatcontrolshowGTEKisappliedandtransportedtoCPE.Thiscanbeeither0x03or0x04(seeTable194).
CryptographicSuiteforGKEK/GTEKGeneration
CryptographicsuitethatcontrolshowGKEK&
GTEKisgeneratedatBS.Thiscanbeeither0x06or0x07(seeTable194).
GKEK
GKEKforGSAusedtoprotectGTEKwhentransportedtoCPEinKey-Reply.ThisfieldisprotectedwiththeKEKassociatedwiththeAK.
RemaingingGKEKLifetime
RemaininglifetimeinwhichGKEKcanbeusedtoprotectGTEKsinSCMKey-Replymessages.Inunitsof10msframes.
Table172—SCMGSA-Removeattributes
NumberofSAID
“N”NumberofSAIDsforGSA(GSAIDs)thataretoberemoved
SAID(s)
N*16bits
ListofSAIDsforGSAsthataretoberemoved
Table173—SCMTEK-Invalidattributes
SecurityAssociationIdentifier
Errorcode(see6.10.24)identifyingreasonforSCMTEK-Invalidmessage.
Comment136
ThiscommentreflectsharmonizingtheMessageResponseCodenumbersinTable176andTable79.AnewmessageresponsecodetableisproposetobemovedtotheendofSection6.10.
[removethetextonlines11-12andTable78onpg73]
[removesection6.10.21.9]
[insertnewsectionattheendofsec
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