22100063000000resolutionforcidfrom999to1020Word文档格式.docx
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22100063000000resolutionforcidfrom999to1020Word文档格式.docx
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Company
Address
Phone
Chang-JooKim
ETRI
Korea
+82-42-860-1230
cjkim@etri.re.kr
ByungJangJeong
+82-42-860-6765
bjjeong@etri.re.kr
Gwang-ZeenKo
+82-42-860-4862
gogogo@etri.re.kr
Sung-HyunHwang
+82-42-860-1133
shwang@etri.re.kr
Jung-SunUm
+82-42-860-4844
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Abstract
Thisdocumentprovidestheresolutionsforcomment999,1000,1001,1002,1003,1004,1005,1006,1007,1008,1009,1010,1011,1012,1013,1014,1015,1016,1017,1018,1019and1020.ThisdocumentprovidestextchangeforSection9.2.3.
Notice:
ThisdocumenthasbeenpreparedtoassistIEEE802.22.Itisofferedasabasisfordiscussionandisnotbindingonthecontributingindividual(s)ororganization(s).Thematerialinthisdocumentissubjecttochangeinformandcontentafterfurtherstudy.Thecontributor(s)reserve(s)therighttoadd,amendorwithdrawmaterialcontainedherein.
Release:
Thecontributorgrantsafree,irrevocablelicensetotheIEEEtoincorporatematerialcontainedinthiscontribution,andanymodificationsthereof,inthecreationofanIEEEStandardspublication;
tocopyrightintheIEEE’snameanyIEEEStandardspublicationeventhoughitmayincludeportionsofthiscontribution;
andattheIEEE’ssolediscretiontopermitotherstoreproduceinwholeorinparttheresultingIEEEStandardspublication.ThecontributoralsoacknowledgesandacceptsthatthiscontributionmaybemadepublicbyIEEE802.22.
PatentPolicyandProcedures:
ThecontributorisfamiliarwiththeIEEE802PatentPolicyandProcedures
<
http:
//standards.ieee.org/guides/bylaws/sb-bylaws.pdf>
includingthestatement"
IEEEstandardsmayincludetheknownuseofpatent(s),includingpatentapplications,providedtheIEEEreceivesassurancefromthepatentholderorapplicantwithrespecttopatentsessentialforcompliancewithbothmandatoryandoptionalportionsofthestandard."
EarlydisclosuretotheWorkingGroupofpatentinformationthatmightberelevanttothestandardisessentialtoreducethepossibilityfordelaysinthedevelopmentprocessandincreasethelikelihoodthatthedraftpublicationwillbeapprovedforpublication.PleasenotifytheChair<
CarlR.Stevenson>
asearlyaspossible,inwrittenorelectronicform,ifpatentedtechnology(ortechnologyunderpatentapplication)mightbeincorporatedintoadraftstandardbeingdevelopedwithintheIEEE802.22WorkingGroup.Ifyouhavequestions,contacttheIEEEPatentCommitteeAdministratorat<
patcom@ieee.org>
.
ThistextprovideremedyofComment999,1000,1001,1002,1003,1004,1005,1007,1008,1009,1010,1011,1012,1013,1014,1015,1016,1017,1018,1019and1020
[Toeditor]
-Thistextconsistsoftwoparts,thefirstpartisfinalversionofSection9.2.3whichincludesallresolutionofabovecomments.EditorcancopythefirstpartandpastetoDraftv.2.2.AndthesecondpartincludescollectionhistorytomakeeasyCIDtrace.
-Allfigure,tableandsectionnumbersshouldbechecked(Seebluecolor).InthistextsuggestednumbersareallocatedbasedonDraftv.2.1.
[ReplacebelowtextwithcorrespondingSection9.2.3]
[Part1:
Finalversionoftext]
[ModificationofSection9.2.3]
1.
2.
3.
4.
5.
6.
7.
8.
9.
9.1
9.2
9.2.1
9.2.2
ChannelClassificationandSelection
TheSMshallassigntheoperatingchanneltotheMAC/PHYmodulesintheWRAN.TheSMshallalsodefinethebackupchannel(s)andtheircorrespondingpriorities.Therestofthechannelsthatarepotentiallyavailableforoperation,butthatarenotselectedastheoperatingchannelorasbackupchannel(s),maybeclassifiedascandidate,protectedordisallowedchannel(s).Thechannelsmaybeclassifiedusingthefollowingcategories:
Available:
channelsavailableforconsiderationforpotentialWRANoperationatagivenlocationaccordingtheincumbentdatabases,ifsuchdatabasesexist.ChannelsnotdeemedavailablebythedatabasesareprecludedforusebyWRANs.Ifnoincumbentdatabaseexists,allchannelsareconsideredavailable.Availablechannelsarefurtherclassifiedintooneofthefollowingcategories:
∙Disallowed:
channelsthatareprecludedfromusebytheoperatorduetooperationalorlocalregulatoryconstraints.
∙Operating:
thecurrentchannelusedforcommunicationbetweenBSandCPEswithinaWRANcell.Inordertoprotectincumbents,theoperatingchannelshallbesensedatleastevery2secondsforwirelessmicrophoneandIEEE802.22.1wirelessbeacon.
∙Backup:
channelsthathavebeenclearedtoimmediatelybecometheoperatingchannelincasetheWRANneedstoswitchtoanotherchannel.TheBSmaymaintainmultiplebackupchannelsatanygiventimeandshallorderthemaccordingtotheirrelativepriorities.Backupchannelsshallbesensedforincumbentdetectionatleastonceevery6seconds.AchannelcanstayinthebackupchannellistaslongasnoincumbentisfoundonthischanneltowardswhichharmfulinterferencecouldbeproducedbytheWRANtransmission.
∙Candidate:
channelsthatarecandidatestobecomeabackupchannel.ThesearechannelsthattheBSmayrequesttheCPEstosensetoevaluatethepossibilityofelevatingthemtoabackupchannelstatus.Althoughsensingofcandidatechannelscouldbeinfrequent,beforeacandidatechanneliselevatedtobackupchannel,itmustbesensedasincumbent-freeatleastevery6secondsfornolessthan30seconds.IfthefirstchannelinthelistcanbeconfirmedclearofanyincumbentoperationtowardswhichharmfulinterferencecouldbeproducedbytheWRANtransmissionwithintherequiredtimeperiod,thebasestationcanmoveittothebackuplistifneeded.TheconstitutionofthecandidatechannellistreliesontheextratimethattheCPEswillhavetodosensingbeyondwhatisrequiredtoclearthebackupchannellist.
∙Protected:
channelsinwhichtheincumbentortheWRANoperationhavebeendetectedthroughsensing.ProtectedchannelsmaybemovedtothecandidatechannelsetintheeventthattheincumbentortheWRANsystemshavevacatedthechannel.Sensingisneededtodeterminewhethertheincumbentisstillpresentonthechannel,butsensingcouldbeinfrequentinthesechannels.Aprotectedchannelmayalsobecomeabackupchannel,butbeforeaprotectedchanneliselevatedtobackupchannelstatus,itmustbesensedasincumbent-freeatleastevery6secondsfornolessthan30seconds.TheSMshould,whenpossible,identifythetypeofsignaloccupyingeveryprotectedchannel(see9.2.5).
∙Unclassified:
channelsthathavenotbeensensed.ThesechannelsmaybesensedaccordingtotheSMimplementation.Onceanunclassifiedchannelhasbeensensed,itmaybere-classifiedasprotectedorcandidatechanneldependingonthesensingresults.
Fortheabovechannelsetdefined:
“Disallowed”,“Operating”,“Backup”,“Candidate”,“Protected”and“Unclassified”channelsets,andallsetsareexclusivetoeachother,i.e.,achannelcannotbelongtomorethanoneofthesesixsets.However,becauseoftheWRANself-coexistencemechanism,anoperatingchannelforoneWRANsystemcanalsobetheoperatingchannelofanotherWRANsystem(‘coexistence’)orbelongtoitsbackuporcandidatelistasexplainedin6.23.3.1.
Thespecificalgorithmsforselectingtheoperatingchannelanddefininghowthebackupandcandidatechannelsareprioritizedisoutsidethescopeofthisstandardaslongastheseimplementationsmeetthesensingrequirements.However,anyimplementationofthesealgorithmsshalluseasinputcurrentchannelavailabilityinformation(asdescribedin9.2.2).Furthermore,othercriteriamayalsobetakenintoaccountbytheimplementation,suchastrafficrequirements,locationinformation,andcoexistencewithneighboringWRANs.
10.
10.1.1
10.1.2
10.1.2.1TransitionDiagramforChannelSets
EachchannelontheavailableTVchannellistthatisreturnedfromthedatabaseservice(section9.7.1.8)belongstooneofthepossiblechannelsetsintheBS.Attheendofthequietperiod,dependingontheactivityofincumbentusersandchannelqualityeachchannelmaytransittoothersetsasshownbythestatetransitiondiagramshowninFigure177.Thetransitiondiagramconsistsof5statesand9events.The5statesaredescribedinSection9.2.3.NotethatthesestatesareclassifiedusingspectrumsensingresultsduringWRANinitializationandoperation.Therefore,disallowedandunavailablechannelsareomittedinthisstatetransitiondiagrambecausethosechannelsareclassifiedbyopratororincumbentDB.Possibleeventsforeachstatetransitionaredescribedasfollows:
Event1:
ThechannelintheOperating,Backup,Candidate,orUnclassifiedsetsbecomesamemberoftheProtectedsetifanincumbentappearsintheincumbentdatabaseorisdetectedusingspectrumsensing.
Event2:
IncumbentserviceorotherWRANreleasesthechannel.
Event3:
ThepoorestchannelintheBackupsetbecomesamemberoftheCandidatesetasitsqualityisworsethanthatofanewmemberoftheBackupset.Itcanalsooccurwhenanincumbenthasappearedduringthelast30seconds.
Event4:
ThechannelisreleasedduetotheterminationoftheWRANusageanditsqualityisworsethanthatoftheexistingmembersoftheBackupset.
Event5:
ThechannelbecomesOperatingbyitsnewallocationtotheWRANservice.
Event6:
IfthechannelqualityisbetterthanthatofanexistingmemberoftheBackupset,thenitreplacesthismemberoftheBackupset.Also,allthesechannelssatisfythatnoincumbentappeareddurin
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