22100063000000resolutionforcidfrom999to1020.docx
- 文档编号:2432058
- 上传时间:2023-05-03
- 格式:DOCX
- 页数:19
- 大小:112.27KB
22100063000000resolutionforcidfrom999to1020.docx
《22100063000000resolutionforcidfrom999to1020.docx》由会员分享,可在线阅读,更多相关《22100063000000resolutionforcidfrom999to1020.docx(19页珍藏版)》请在冰点文库上搜索。
22100063000000resolutionforcidfrom999to1020
IEEEP802.22
WirelessRANs
ResolutionforCIDfrom999to1020:
Proposed
TextchangeforSection9.2.3
Date:
2010-04-02
Author(s):
Name
Company
Address
Phone
Chang-JooKim
ETRI
Korea
+82-42-860-1230
cjkim@etri.re.kr
ByungJangJeong
ETRI
Korea
+82-42-860-6765
bjjeong@etri.re.kr
Gwang-ZeenKo
ETRI
Korea
+82-42-860-4862
gogogo@etri.re.kr
Sung-HyunHwang
ETRI
Korea
+82-42-860-1133
shwang@etri.re.kr
Jung-SunUm
ETRI
Korea
+82-42-860-4844
korses@etri.re.kr
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
//standards.ieee.org/guides/bylaws/sb-bylaws.pdf>,includingthestatement"IEEEstandardsmayincludetheknownuseofpatent(s),includingpatentapplications,providedtheIEEEreceivesassurancefromthepatentholderorapplicantwithrespecttopatentsessentialforcompliancewithbothmandatoryandoptionalportionsofthestandard."EarlydisclosuretotheWorkingGroupofpatentinformationthatmightberelevanttothestandardisessentialtoreducethepossibilityfordelaysinthedevelopmentprocessandincreasethelikelihoodthatthedraftpublicationwillbeapprovedforpublication.PleasenotifytheChair 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
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 22100063000000 resolutionforcidfrom999to1020