LE切換信令流程

Handover1Intra-E-UTRANhandover1.1X2-basedhandoverGeneralTheseproceduresareusedtohandoveraUEfromasourceeNodeBtoatargeteNodeBusingtheX2referencepoint.IntheseprocedurestheMMEisunchanged.TwoproceduresaredefineddependingonwhethertheServingGWisunchangedorisrelocated.InadditiontotheX2referencepointbetweenthesourceandtargeteNodeB,theproceduresrelyonthepresenceofS1-MMEreferencepointbetweentheMMEandthesourceeNodeBaswellasbetweentheMMEandthetargeteNodeB.ThehandoverpreparationandexecutionphasesareperformedasspecifiedinTS

36.300

[5].IfemergencybearerservicesareongoingfortheUEhandovertothetargeteNodeBisperformedindependentoftheHandoverRestrictionList.TheMMEchecks,aspartoftheTrackingAreaUpdateintheexecutionphase,ifthehandoveristoarestrictedareaandifsoMMEreleasesthenon-emergencybearersasspecifiedinclause

5.10.3.IftheservingPLMNchangesduringX2-basedhandover,thesourceeNodeBshallindicatetothetargeteNodeB(intheHandoverRestrictionList)thePLMNselectedtobethenewServingPLMN.WhentheUEreceivesthehandovercommanditwillremoveanyEPSbearersforwhichitdidnotreceivethecorrespondingEPSradiobearersinthetargetcell.Aspartofhandoverexecution,downlinkandoptionallyalsouplinkpacketsareforwardedfromthesourceeNodeBtothetargeteNodeB.WhentheUEhasarrivedtothetargeteNodeB,downlinkdataforwardedfromthesourceeNodeBcanbesenttoit.UplinkdatafromtheUEcanbedeliveredviathe(source)ServingGWtothePDNGWoroptionallyforwardedfromthesourceeNodeBtothetargeteNodeB.OnlythehandovercompletionphaseisaffectedbyapotentialchangeoftheServingGW,thehandoverpreparationandexecutionphasesareidentical.IftheMMEreceivesarejectiontoaNASprocedure(e.g.dedicatedbearerestablishment/modification/release;locationreportingcontrol;NASmessagetransfer;etc.)fromtheeNodeBwithanindicationthatanX2handoverisinprogress(seeTS

36.300

[5]),theMMEshallreattemptthesameNASprocedureeitherwhenthehandoveriscompleteorthehandoverisdeemedtohavefailed,exceptincaseofServingGWrelocation.ThefailureisknownbyexpiryofthetimerguardingtheNASprocedure.IfduringthehandoverproceduretheMMEdetectsthattheServingGWneedsberelocated,theMMEshallrejectanyPDNGWinitiatedEPSbearer(s)requestreceivedsincehandoverprocedurestartedandshallincludeanindicationthattherequesthasbeentemporarilyrejectedduetohandoverprocedureinprogress.TherejectionisforwardedbytheServingGWtothePDNGW,withthesameindication.UponreceptionofarejectionforanEPSbearer(s)PDNGWinitiatedprocedurewithanindicationthattherequesthasbeentemporarilyrejectedduetohandoverprocedureinprogress,thePDNGWstartalocallyconfiguredguardtimer.ThePDNGWshallre-attempt,uptoapre-configurednumberoftimes,wheneitheritdetectsthatthehandoveriscompletedorhasfailedusingmessagereceptionoratexpiryoftheguardtimer.IftheMMEreceivesarejectiontoaUEContextModificationRequestmessagewithaCSFallbackindicatorfromtheeNodeBwithanindicationthatanX2handoverisinprogress,theMMEshallresendaUEContextModificationRequestmessagewithCSFallbackindicatortothetargeteNodeBwhenthehandoveriscompleteortothesourceeNBwhenthehandoverisdeemedtohavefailed.X2-basedhandoverwithoutServingGWrelocationThisprocedureisusedtohandoveraUEfromasourceeNodeBtoatargeteNodeBusingX2whentheMMEisunchangedanddecidesthattheServingGWisalsounchanged.ThepresenceofIPconnectivitybetweentheServingGWandthesourceeNodeB,aswellasbetweentheServingGWandthetargeteNodeBisassumed.Figure1.1.2-1:X2-basedhandoverwithoutServingGWrelocationNOTE

1:ForaPMIP-basedS5/S8,proceduresteps(A)aredefinedinTS

23.402

[2].淹1.劫鞭Thet揭arget栗eNod筒eBse侵ndsa咬Path項(xiàng)Swit問(wèn)chRe范quest窯mess社aget仗oMME臘toi惜nform宇that薪the嶺UEha萍scha盲nged爽cell,恰incl桑uding綁the鎖TAI+E庫(kù)CGIo禿fthe稈targ蘆etce洽llan汪dthe莖list餡ofE粘PSbe伐arers到tob取eswi奮tched走.If耀thet婦arget址cell俯isa綁CSG詠cell祝,the分targ槍eteN傲odeB慮inclu浪dest器heCS樂(lè)GID宗ofth響etar肺getc畫(huà)elli處nPat辣hSwi犬tchR保eques堆tmes涂sage.賭Ift騰heta召rget褲cell達(dá)isin延hybr耗idmo惠de,i途tinc槍ludes殖the筒CSGI產(chǎn)Dof鍛thet已a(bǔ)rget涌cell著and忍CSGA謊ccess烏Mode鋸set槍to"h壯ybrid挖"in捉theP跪athS坦witch摔Requ發(fā)estm薪essag除e.Th棕eMME門(mén)dete享rmine冠sthe哲CSG也membe燦rship旺base儀don碗theC思SGID鐮and帆CSGA竊ccess繁Mode昂rece瞇ived崗from找thet謹(jǐn)arget莫eNod忘eB.Th桶eMME公upda妻test耐heUs再erCS共Ginf怎ormat嗚ionb練ased皂onth倒eCSG鐘IDa苗ndCS喘GAcc恰essM脆oder妥eceiv督edfr部omth鼠etar水gete情NodeB疑and掀CSGm涼ember挨ship爽ifon釣eof趕thep礦arame往ters栗hasc毛hange對(duì)d.疑NOTE

甜2:踏紐X2ha培ndove暫rbet抓ween牽HeNBs禍isp催ossib雅lewh虜enth瞞ehan惡dover貫isb遞etwee松nclo暈sed/h此ybrid憑acce肆ssHe陳NBsh幅aving獎(jiǎng)the叮same鋸CSGI帽Dor斷when堤thet申arget拼HeNB物isa吉nope基nacc綢essH培eNB.址僻TheM階MEde掩termi鍬nest主hatt帶heSe櫻rving架GWc者anco獸ntinu忌eto舒serve瑞the難UE腦2.符血TheM形MEse匯ndsa姥Modi暴fyBe君arer疲Reque另st(e征NodeB況addr項(xiàng)ess(e阻s)an寨dTEI輛Dsfo頁(yè)rdow趁nlink折user聯(lián)伙plane來(lái)for亭thea屯ccept稼edEP裹Sbea帝rers,殼ISR榜Activ喝ated)們mess燕agep稿e(cuò)rPD媽Ncon支necti偵onto邁the舞Servi俊ngGW叢for和each被PDNc四onnec帳tion興where嶺the恐defau釣ltbe教arer制hasb不eena博ccept線edby刊the喜targe涌teNo仗deB.附Ifth壓ePDN鉗GWr烤eques拘tedU膝E'sl領(lǐng)ocati枕onin蠶fo,t剖heMM己Eals懇oinc徐ludes扒the份User濟(jì)Locat烤ionI割nform瘦ation塑IEi錢nthi板smes仔sage.濃Ift兆heUE祝Time錫Zone類has參chang洲ed,t哨heMM折Einc桶l(fā)udes嚷the弄UETi另meZo牛neIE剪int進(jìn)hism眠essag戴e.If幕the美Servi枯ngNe召twork洽has蘇chang足ed,t娃heMM階Einc毅ludes襪the蹈newS賢ervin嘆gNet狠work扮IEin羞this服mess澆age.耕IfIS唱Rwas陽(yáng)acti仙vated匆befo機(jī)reth級(jí)ispr擺ocedu玩re,M籠MEsh癢ould秩maint待ainI愿SR.T員heUE菠isi登nform駁edab決outt勇heIS業(yè)Rsta拴tusi求nthe拿Trac爹king爽Area壟Updat滾epro攝cedur親e.If喂the搜Servi具ngGW圈supp庭orts材Modif孩yAcc供essB搭earer啟sReq儀uest驅(qū)proce萌dure確andi魯fthe逐reis幟non范eedf釘orth滴eSGW比tos刃endt學(xué)hesi添gnall助ingt申othe蜜PGW,惜the磚MMEm槐ayse刷ndMo社dify份Acces才sBea追rers勇Reque馳st(e碰NodeB吧addr盾ess(e腦s)an罩dTEI擇Dsfo斃rdow即nlink拖user姜plan爭(zhēng)efor側(cè)the丘accep繪tedE揭PSbe陣arers廣,ISR差A(yù)cti陸vated坡)per驕UEt恥othe揭Serv鹿ingG妄Wto吧optim乎izet腰hesi魚(yú)gnall脆ing.禾隨Ifth陵ePDN斃GWr氧eques喂tedU碌E'sU窯serC就SGin懂forma鄰tion倒(dete份rmine丈dfro套mthe堆UEc綿ontex盤(pán)t),t經(jīng)heMM項(xiàng)Einc暫ludes竟the遣User較CSGI俊nform緞ation竟IEi傳nthi炕smes益sage屢ifth歪eUse帶rCSG芹Info繼rmati咸onha汁scha捕nged.橋嚼TheM捧MEus懇esth煮elis升tof極EPSb材earer展sto絲besw惱itche房d,re因ceive表din岸step

桃1,to間dete久rmine械whet叉hera保nyde秩dicat慌edEP料Sbea幸rers津inth渾eUE售conte盈xtha型veno微tbee孩nacc寶epted膏byt聲heta餐rget株eNode沙B.Th衫eMME謝rele學(xué)ases微then吼on-ac雄cepte輛dded瘋icate貞dbea枝rers柱bytr究igger墻ingt臘hebe供arer流relea佳sepr短ocedu劈reas住spec踩ified宇inc鍵lause煩

5.4.寺4.2.蠅Ifth縫eSer來(lái)ving歉GWre憂ceive浙saD循Lpac跟ketf諷ora濕non-a擊ccept陪edbe霧arer,建the鍋Servi靜ngGW冶drop領(lǐng)sthe視DLp物acket桑and咐does喇nots輩enda叔Down坊link跨Data掌Notif樹(shù)icati蟻onto嗚the纏MME.津慨Ifth局edef別ault澤beare啦rof自aPDN短conn盯ectio浪nhas難not肢been描accep誰(shuí)tedb幟ythe腥targ愉eteN裕odeB互andt后here炭arem扭ultip冠lePD庭Ncon息necti緩onsa稀ctive卡,the盟MME辜shall孔cons友ider竄allb遵earer浸sof趁that修PDNc鐘onnec抱tion趁asfa揪iled么andr灌eleas棍etha靜tPDN敵conn蠢ectio土nby泊trigg嶼ering廟the兔MMEr疲eques震tedP斗DNdi設(shè)sconn峰e(cuò)ctio跑npro蓋cedur竟espe眨cifie端din艇claus連e

5.1項(xiàng)0.3.刷火Ifno府neof探the野defau抓ltEP侍Sbea玻rers穴have摘been打accep惱tedb炎ythe旺targ南eteN沃odeB糟orth炕erei鐵saL煙IPAP哈DNco庸nnect罷iont炸hath欺asno步tbee兔nrel糟eased豈,the論MME苗shall系act債assp苗ecifi特edin奶step失

6.奮3.果單Ifth簽eSer妨ving肥GWha復(fù)srec虛eived電the挎User腰Locat演ionI賄nform電ation酸IEa閘nd/or煉the孕UETi狀meZo毒neIE根and/挎orth逼eSer趴ving勺Netwo種rkIE捧and/熟orUs鵝erCS攻GInf播ormat件ionI圓Efro攀mthe泳MME勒inst熄ep

2攜theS陵ervin命gGW猛infor忽msth誠(chéng)ePDN驢GW(s腐)abo寶utth遙isin恨forma家tion乓that司e.g.絨canb通euse音dfor豆char禍ging,斤bys構(gòu)endin蓋gthe磨mess喜ageM把odify他Bear侮erRe寄quest禽(Ser賢ving復(fù)GWAd健dress耽and柔TEID,疼User娛Loca醋tion墨I(xiàn)nfor釋matio那nIE糞and/o筒rUE慚Time嘗Zone某IEan宅d/or濱Servi笨ngNe爽twork壁IEa囑nd/or卸User巨CSG希Infor種matio香nIE)壟per茄PDNc職onnec找tion敵toth師ePDN淡GW(s伙)con呼cerne辮d.Th騙eSer丑ving然GWsh每allr涌eturn蟻aMo鴿dify惠Beare紛rRes曾ponse杜(Ser抱ving蘭GWad摘dress妙and永TEID韻foru撈plink亭traf搬fic)缺messa姑geto筍the砌MMEa敲sar缺espon玻seto神aMo辯dify畢Beare閱rReq燃uest噴messa陡ge,o立raM壽odify猾Acce逐ssBe晝arers映Resp碼onse離(Serv梢ingG議Wadd踩ress狀andT翠EIDf擴(kuò)orup嬸link唇traff冶ic)a昏sar當(dāng)espon竹seto恢aMo橡dify近Acces煙sBea騙rers弄Reque霉stme撲ssage承.If與theS慢ervin湯gGW暈canno爪tser內(nèi)veth示eMME雪Requ壯esti蝴nthe宵Modi億fyAc同cess征Beare錫rsRe奶quest葵mess傅agew周ithou秧tS5/炎S8si嚇gnall檔ingo會(huì)rwit府hout頓corre成spond肚ingG養(yǎng)xcsi堤gnall膽ingw而henP虜MIPi逼suse左dove糠rthe去S5/S心8int蛋erfac急e,it侍shal攀lres妹pond醒toth紙eMME陡with在indi禾catin染gtha旨tthe傾modi移ficat嘆ions誕aren撫otli占mited貌toS利1-Ub悄earer喉s,an既dthe春MME械shall喚repe疑atit顛sreq驕uest應(yīng)using輕Modi寶fyBe汪arer廢Reque爛stme畏ssage比per秘PDNc護(hù)onnec獨(dú)tion.帝4.奮甩TheS細(xì)ervin龍gGW揚(yáng)start湯ssen宏ding省downl必inkp而acket盆sto龜thet課arget服eNod擇eBus搜ingt洋hene幸wlyr怠eceiv漢edad災(zāi)dress銷and膨TEIDs前.AM相odify法Bear府erRe蒸spons梅emes斬sage意isse秧ntba彎ckto榜the呈MME.含5.擾友Inor轎dert愉oass而istt劉here寫(xiě)order誘ingf哪uncti菠onin為the賣targe援teNo咸deB,鋸theS印ervin受gGW冷shall戒send振one聲ormo步re"e續(xù)ndma它rker"里pack員etso鼓nthe子old桃path碰immed綁iatel慚yaft間ersw羽itchi塑ngth漢epat聚has駐defin洗edin運(yùn)TS

3坊6.300塊

[5],鳳clau槳se

10俊.1.2.綿2.白6.斤棍TheM尖MEco毀nfirm奶sthe乒Path堡Swit合chRe稍quest猴mess虛agew漁itht功hePa愉thSw葬itch鋒Reque葛stAc雁kmes錘sage.莊Ift胡heUE說(shuō)弱AMBR懲isch悟anged猾,e.g俗.all劈the黑EPSb串earer爭(zhēng)swhi梨char插e(cuò)ass給ociat踩edto區(qū)the館same狠APNa河rere孕jecte通din嘉thet午arget受eNod碎eB,t梢heMM蜜Esha練llpr幫ovide殼the焦updat風(fēng)edva財(cái)lueo虧fUE浩霸AMBR筐toth歇etar郊gete瘡NodeB猶int選hePa歸thSw嫂itch形Reque盞stAc項(xiàng)kmes乞sage.堆艦Ifso暫meEP匹Sbea超rers倘have林notb宏eens灶witch擋edsu祝ccess揀fully躁int喚heco且rene周twork篩,the粘MME替shall蓮indi明cate柏inth臭ePat抓hSwi詢tchR滑eques蜘tAck式mess醫(yī)agew易hich揀beare穿rsfa壞iled翠tobe渾esta前blish懸ed(s廉eemo除rede叢tail瞧inTS臘

36.4委13

[3徹6])a淺ndfo配rded玩icate棚dbea過(guò)rers美initi總atet壽hebe曬arer算relea澆sepr均ocedu回reas復(fù)spec蜘ified坦inc鏟lause拐

5.4.召4.2t流orel躍ease橡thec嫁oren縱etwor股kres戒ource蔽sof刺thef撐ailed帖dedi律cated愈EPS桑beare擱rs.T銅heta賣rget年eNode高Bsha項(xiàng)llde肯lete丸thec木orres秋pondi絲ngbe別arer鍛conte鹿xtsw倒heni楊tis修infor棟medt看hatb崇earer兇shav午enot矛been豪esta輕blish詢edin捕the跨core覺(jué)netwo杜rk.遼已Ifno鵲neof寺the雀defau占ltEP病Sbea液rers駕have農(nóng)been徑switc扯heds型ucces篇sfull射yin憲thec爽oren成etwor粉kor頸ifth朝eyha怕veno柔t(yī)bee芽nacc刺epted冊(cè)byt廣heta隊(duì)rget御eNode瓶Bor悼theL沖IPAP冒DNco槽nnect影ionh沈asno魄tbee裝nrel供eased蛙,the忠MME嗎shall亮send獸aPa扔thSw閃itch旁Reque肆stFa蛇ilure碑mess超age(欺seem籍ored姓etail魚(yú)inT撲S

36.附413

[棕36])撐toth石etar跪gete躁NodeB韻.The趟MME竭perfo挪rmse現(xiàn)xplic葉itde筑tach若ofth淚eUE殘asde聚scrib畜edin湯the企MMEi品nitia想tedd凡etach泛proc傘edure愈ofc計(jì)lause犁

5.3.唇8.3.猾7.鎖或Byse改nding宮Rele稈aseR坑esour府ceth熄etar隸gete平NodeB貢info勇rmss喊ucces作sof怨theh警andov祥erto肺sour亞ceeN李odeB朱andt鴨rigge稈rsth汁erel關(guān)ease褲ofre騎sourc祖es.T慨hiss燭tepi從sspe執(zhí)cifie五din釋TS

36暴.300

城[5].縣8.妻差TheU釣Eini擊tiate聚saT添racki坑ngAr深eaUp姜date談proce旁dure蛙when民oneo澤fthe闖cond許ition滿slis芬tedi膜ncla丸use"念Trigg爽ersf騰ortr退ackin何gare鋒aupd倦ate"齡appli械es.I腰fISR孩isa考ctiva取tedf量orth匹eUE帽when旁theM哄MEre覺(jué)ceive帆sthe慎Trac花king顛Area疊Updat臨eReq藝uest,梢the貌MMEs式hould非main盼tain警ISRb背yind鍬icati手ngIS依RAct攔ivate乞din恢theT榮racki解ngAr鞏eaUp嘴date倆Accep挽tmes遼sage.虜NOTE

牧3:問(wèn)訪Itis韻only置asu煙bset撤ofth販eTA鋸updat思epro洪cedur掀etha倒tis倡perfo茶rmed換byth驢eMME抖,sin腹ceth謝eUE刪isin已ECM顆趁CONNE傻CTED勁state串a(chǎn)nd燙theM桂MEis擋not壟chang較ed.盤(pán)互聲X2-ba寧sedh旗andov濟(jì)erwi責(zé)thSe惑rving框GWr衫eloca至tion夏This洪proce賄dure方isus任edto攀hand糧over罷aUE雁from螞aso注urce里eNode肚Bto映atar均gete蝦NodeB要usin裙gX2椒when把theM攪MEis氣unch芳anged惰and叔theM代MEde仰cides改that籮the式Servi托ngGW詞ist州obe省reloc輸ated.輔The本prese棄nceo袖fIP頭conne蘋(píng)ctivi司tybe素tween市the抄sourc拋eSer魔ving勞GWan龍dthe鑼sour墓ceeN戲odeB,茂betw大eent鞠heso樹(shù)urce桿Servi桑ngGW枝and蠻thet犯arget卻eNod笨eB,a旺ndbe獲tween艦the砌targe妥tSer瞇ving良GWan典dtar擔(dān)gete斤NodeB召isa蘆ssume隨d.(I促fthe欄reis饒noI掠Pcon榨necti伯vity首betwe資enta哄rget堂eNode嗽Band燭sour率ceSe捐rving警GW,始itis鴨assu患medt抓hatt驕heS1碌-base示dhan繪dover猜proc福edure蔑inc看lause暈1.2親shall蘋(píng)beu謹(jǐn)sedi吼nstea涂d.)暖Figur征e1.1督.3-1:靜X2-b扒ased攪hando影verw粗ithS目ervin瓦gGW街reloc餃ation杠NOTE

診1:疑兆Fora沾PMIP者-base茂dS5/旁S8,p愈roced翠ures婦teps店(A)a嘩nd(B烈)are釋defi腔nedi者nTS

討23.40構(gòu)2

[2]首.稅1.煙暴Thet請(qǐng)arget森eNod糧eBse浴ndsa捐Path丙Swit上chRe拋quest梨mess榮aget喊oMME環(huán)toi扁nform鄉(xiāng)that館the以UEha琴scha畫(huà)nged宮cell,存incl榨uding計(jì)the暢ECGI謹(jǐn)ofth踩etar評(píng)getc耀ella訓(xùn)ndth苗elis紛tof薄EPSb舞earer拔sto搶besw豎itche爪d.If餓the飯targe精tcel責(zé)lis府a(chǎn)CSG爛cell碎,th傻etar圓gete嘴NodeB塔incl枯udes蝦theC影SGID產(chǎn)oft輩heta盜rget遵cell雜inPa有thSw蠻itch逆Reque膊stme勝ssage朋.If卷thet慚arget蓮cell畫(huà)isi券nhyb泛ridm駁ode,畏itin戒clude尸sthe縮CSG再IDof凍the主targe禾tcel宇land問(wèn)CSG細(xì)Acces簽sMod幅eset受to"勉hybri目d"in腰the紛Path攔Switc圓hReq煉uest趟messa帳ge.T煩heMM搶Edet擊ermin套esth貸eCSG傾memb斗ershi世pbas內(nèi)edon鵲the匪CSGI慨Dand繁CSG中Acces古sMod市erec允eived埋from輔the帥targe歸teNo爭(zhēng)deB.T同heMM捆Eupd辨ates源theU制serC戀SGin瀉forma型tion吐based蛾ont環(huán)heCS異GID欠andC亡SGAc材cess構(gòu)Mode陵recei裂vedf希romt傭heta鉗rget牙eNode憑Band巖CSG油membe拼rship閣ifo停neof綢the惕param泄eters但has某chang票ed.新NOTE

姿2:餡罰X2ha躺ndove飽rbet逝ween億HeNBs際isp得ossib舞lewh立enth遼ehan監(jiān)dover跡isb芝etwee寸nclo陪sed/h巷ybrid玩acce捆ssHe貿(mào)NBsh頓aving揉the你same秩CSGI程Dor潔when虛thet也arget嘗HeNB欄isa委nope徐nacc督essH御eNB.澇衫TheM踩MEde萍termi籠nest懼hatt染heSe鄰rving狠GWi猶srel忌ocate掀dand粉sele這ctsa批new點(diǎn)Servi拆ngGW師acco磨rding譯toc混lause錢4.3.譽(yù)8.2o蜘n"Se甩rving診GWS布elect給ionF鳴uncti玻on".漸NOTE

愛(ài)3:昂逃TheM梅MEkn頓owst切heS距晃GWSe遙rvice瞞Area灰with倘aTA滅gran斤ulari葛ty.站2.檔走TheM武MEse咐ndsa夸Crea役teSe應(yīng)ssion箭Requ悲est(齒beare附rcon境text(帶s)wi康thPD資NGW姥a(bǔ)ddre飄sses鼓andT良EIDs確(for線GTP-b仇ased浮S5/S8睡)or洗GREk暮eys(忍forP棒MIP-b華ased皇S5/S8鹽)at肝theP礙DNGW核(s)f物orup年link絹traff膝ic,e謙NodeB恨addr斥ess(e欄s)an刮dTEI突Dsfo主rdow浪nlink喪user藏plan鋤efor仿the井a(chǎn)ccep糞tedE療PSbe蔽arers芽,the橡Prot牧ocol鞭Type拘over辨S5/S8銷,Ser使ving詳Netwo伐rk,U痰ETim法eZon匪e)me雄ssage償per擠PDNc敏onnec餐tion堆toth捉etar虛getS燙ervin翻gGW井fore槐achP蒜DNco廉nnect遼ionw網(wǎng)here桂thed宵efaul砌tbea能rerh織asbe僑enac叨cepte曬dby飼thet漆arget類eNod出eB.T暑heta圣rget呢Servi耕ngGW僻allo貿(mào)cates材the樂(lè)S墨淘GWad捷dress窮esan暴dTEI歐Dsfo暈rthe見(jiàn)upli顏nktr念affic作onS須1_Ur歌efere后ncep洋oint親(one枯TEID乖perb且earer井).Th筋ePro爐tocol研Type浴over鏡S5/S迷8is兇provi每dedt友oSer繁ving足GWwh臺(tái)ichp廢rotoc區(qū)olsh揀ould幼beus產(chǎn)edov磁erS5僅/S8i獄nterf府a(chǎn)ce.滾Ifth工ePDN搬GWr夏eques皇tedU病E'sl窩ocati版onin狐fo,t費(fèi)heMM運(yùn)Eals脆oinc臟ludes掃the言User樓Locat想ionI技nform嚷ation蒜IEi嚼nthi滴smes懂sage.殲Ift魂hePD萬(wàn)NGW姨reque上sted靜UE's截User上CSGi恥nform躍ation澇(det慢ermin描edfr垃omth將eUE污conte差xt),塞theM告MEin遵clude踏sthe賤User糊CSG炊Infor桂matio抱nIE五inth白isme穩(wěn)ssage健ift搶heUs分erCS富GInf堆ormat交ionh它asch據(jù)anged傷.義炒TheM窗MEus爬esth該elis儀tof窯EPSb俯earer架sto步besw羞itche悶d,re獄ceive旋din圖step

闊1,to戀dete井rmine首whet含hera呀nyde蛋dicat腹edEP自Sbea永rers恥inth滿eUE鹽conte檔xtha府veno僵tbee蠶nacc步epted碌byt甚heta陶rget蕉eNode益B.Th脊eMME美rele喝ases稀then氣on-ac斤cepte用dded逃icate蕉dbea常rers許bytr壟igger嚇ingt馬hebe贈(zèng)arer遮relea面sepr厘ocedu滅reas雄spec木ified戶inc笑lause娃

5.4.練4.2v較iata判rget粘Servi雄ngGW樹(shù).If垮theS勇ervin各gGW蔥recei片vesa鬼DLp她acket崖for投anon摩-acce題pted夸beare漿r,th怨eSer鞏ving亡GWdr翼opst噸heDL妙pack尤etan招ddoe微snot勞send老aDo孤wnlin驗(yàn)kDat木aNot于ifica親tion何toth億eMME月.踢歌Ifth恰edef袖ault鐵beare扇rof找aPDN籍conn鑄ectio喉nhas璃not柜been鈔accep章tedb盯ythe忌targ甩eteN停odeB釣andt鏈here令arem坊ultip憶lePD卵Ncon嘆necti梨onsa躲ctive畢,the腐MME混shall示cons籌ider膝allb刑earer恐sof燒that渠PDNc鉤onnec拘tion湊asfa伍iled銹andr傍eleas躺etha窩tPDN銜conn蠟ectio蹤nby昌trigg銅ering雞the吉MMEr廣eques笑tedP嚼DNdi澆sconn珠ectio棄npro先cedur敲espe府cifie佳din鏈claus健e

5.1斑0.3v懼iaso尺urce沿Servi萍ngGW監(jiān).辰先Ifno赤neof余the軌defau章ltEP肅Sbea討rers志have魄been旗accep蜜tedb位ythe鏡targ胸eteN餓odeB窗orth油erei赴saL飼IPAP啊DNco購(gòu)nnect尚iont銀hath柴asno縫tbee頑nrel席eased戒,the甘MME攻shall落act耕assp認(rèn)ecifi機(jī)edin酒step蜂

5.榜3.說(shuō)嚼Thet清arget罩Serv鍛ingG眠Wass胳igns晚addre厭sses肯andT妄EIDs爛(one圖perb兼earer繪)for脾down庸link非traff配icfr白o(hù)mth址ePDN脫GW.雀TheS吊ervin螺gGW住alloc仿ates腫DLTE供IDso艙nS5/井S8ev聞enfo言rnon從-acce艦pted堡beare轎rs.I竹tsen兵dsa喉Modif夫yBea大rerR標(biāo)eques協(xié)t(Se蛋rving敲GWa頌ddres嘩sesf牙orus挺erpl毅anea脊ndTE減ID(s)其,Ser篇ving肌Netwo筒rk)m析essag日eper妄PDN閘conne酒ction崖tot速hePD嘩NGW(漏s).T咸heS翻芝GWal破soin徹clude輔sUse蹈rLoc拐ation詳Info色rmati漠onIE將and/咳orUE豐Time拾Zone統(tǒng)IEa牛nd/or電User壞CSG俊Infor咸matio族nIE毛ifit寇isp泊resen蓄tin搞step

里2.Th扣ePDN挺GWu次pdate尚sits料cont步extf飄ield可andr爪eturn甘saM美odify慶Bear邪erRe論spons打e(Ch三argin蜘gId,坊MSIS導(dǎo)DN,e腰tc.)孤messa音geto乎the腥Servi蜜ngGW芒.The劉MSIS澤DNis示incl雜uded家ifth暫ePDN嗓GWh揚(yáng)asit狠stor骨edin色its舒UEco商ntext球.The撇PDN輸GWst只arts西sendi融ngdo肉wnlin臟kpac效kets吸toth閃etar鍬getG功Wusi煙ngth痕enew刮lyre皺ceive膀dadd味ress各andT爸EIDs.酸Thes禁edow察nlink芝pack婦etsw倆illu苦seth揭enew焰down址link蘭path隔viat沉heta屢rget躬Servi最ngGW先tot夫heta曠rget邊eNode勉B.Th匆eSer角ving下GWsh尿alla蒙lloca汪teTE形IDsf韻orth賣efai輔ledb況earer祥sand木info閣rmto濁t(yī)he朗MME.榴4.宿飽Thet庸arget彼Serv氣ingG君Wsen衣dsa眼Creat法eSes讓sion述Respo泰nse(蛋Servi袍ngGW秒addr劇esses事and婆uplin域kTEI膨D(s)秀foru援serp詳lane)靜mess拒ageb敲ackt輩othe夠targ參etMM造E.Th撒eMME購(gòu)star揀tsa瓶timer術(shù),to棗beus笑edin違step文7.栗5.膽著TheM泰MEco咬nfirm攻sthe品Path途Swit崗chRe拌quest材mess姥a(bǔ)gew炒itht學(xué)hePa晚thSw龍itch玩Reque弱stAc峽k(Se乳rving抵GWa伐ddres艱sesa漏ndup騎link搜TEID(安s)fo眼ruse挽rpla普ne)m浪essag維e.If迅the務(wù)UE早賀AMBR嗽isch育anged醋,e.g駛.all裙the院EPSb銹earer弦swhi塘char陣eass知ociat滲edto器the逝same犬APNa頃r(shí)ere客jecte輩din獨(dú)thet癢arget幻eNod犧eB,t膝heMM貫Esha烘llpr擁ovide劉the巴updat惕edva失lueo惕fUE喜份AMBR堵toth燭etar刺gete習(xí)NodeB太int負(fù)hePa渴thSw解itch秒Reque墾stAc欲kmes約sage.愉The廳targe謊teNo像deBs法tarts緣usin撕gthe雹new努Servi豆ngGW起addr斷ess(e薪s)an欄dTEI已D(s)腫forf爽orwar榜ding爐subse嗽quent埋upli校nkpa于ckets抬.勝塞Ifso扎meEP軟Sbea舊rers煉have伸notb烤eens置witch促edsu迎ccess備fully支int秒heco倒rene繭twork溫,the階MME鏟shall徹indi泡cate悠inth兄ePat野hSwi纖tchR姻eques融tAck魔mess抄agew養(yǎng)hich騰beare愚r(nóng)sfa性iled裁tobe顛esta尿blish園ed(s弱eemo揀rede占tail左inTS誰(shuí)

36.4來(lái)13

[3純6])a桐ndfo介rded氏icate躬dbea帖rers別initi影atet移hebe幕arer悟relea裕sepr思o(jì)cedu買reas鄰spec王ified府inc圓lause苗

5.4.青4.2t母orel銹ease鵲thec玻oren軋etwor發(fā)kres燃o(jì)urce匙sof確thef境ailed捎dedi蜘cated吩EPS孫beare溝rs.T器heta把rget櫻eNode恐Bsha苦l(xiāng)lde剃lete剖thec副orres猛pondi緣ngbe嫂arer另conte冷xtsw增heni欄tis克infor烘medt顫hatb酷earer幫shav柴enot怠been岔esta蠢blish奸edin菊the植core柴netwo波rk.瘡這Ifno汪neof產(chǎn)the沒(méi)defau幼ltEP戲Sbea省rers扯have病been姐switc爬heds毒ucces液sfull疼yin惠thec顆oren紙etwor仇kor陽(yáng)ifth蹈eyha飛veno弄tbee航nacc點(diǎn)epted逼byt組heta服rget殼eNode抱Bor區(qū)theL坊IPAP杠DNco獅nnect墨ionh伙asno榮tbee肥nrel明eased迎,the劑MME眉shall濁send裕aPa釘thSw學(xué)itch單Reque僑stFa脖ilure井mess枕age(撫seem妄ored掩etail搖inT貴S

36.拾413

[著36])栽toth拳etar飾gete黨NodeB井.The液MME螞perfo排rmse晴xplic寒itde扛tach販ofth銹eUE但asde帝scrib扭edin蜂the窗MMEi復(fù)nitia浙tedd凱etach見(jiàn)proc組edure腔ofc蹈lause呆

5.3.古8.3.號(hào)6.滲剖Byse俗nding僚Rele畫(huà)aseR沈esour保ceth奉etar江gete宿NodeB尼info狐rmss最ucces填sof右theh找andov送erto調(diào)sour鴉ceeN今odeB杏andt如rigge珠rsth蝕erel高ease脂ofre撐sourc債es.T慧hiss述tepi遺sspe之cifie問(wèn)din稿TS

36巷.300

奮[5].林7.博綱When據(jù)thet染imer嘗hase浴xpire故daft孫erst較ep4,混the俘sourc足eMME姐rele礙ases蛋theb縮earer營(yíng)(s)i窩nthe額sour妄ceSe獸rving勉GWb竭ysen淘ding顛aDel非eteS尿essio剖nReq惑uest屆messa豪ge(C夢(mèng)ause,席Oper礙ation欲Indi叢catio峽n).T畜heop既erati旱onIn北dicat斷ionf綁lagi獲snot求set,陸that姻indi艇cates津tot盞heSo號(hào)urce槐Servi觀ngGW遵that奸the秋Sourc炎eSer肌ving劉GWsh馬alln意otin剃itiat漂ead網(wǎng)elete垃proc庸edure屋towa壁rdst接hePD啟NGW.獨(dú)The聯(lián)Sourc匙eSer創(chuàng)ving嗎GWac蜜knowl土edges槍with榨Dele帆teSe和ssion尋Resp朵onse盤(pán)messa換ges.禿IfIS始Rhas燈been絮acti沸vated服befo瓣reth誕ispr別ocedu潑re,t報(bào)heca捷usei給ndica酷t(yī)est豈othe茫Sour鍬ceS之累GWth沉atth悄eSou絲rceS腦則GWsh今alld福elete輝the行beare緊rres狂ource妨son逮theo倒ther梨oldC時(shí)Nnod簡(jiǎn)eby士sendi障ngDe雪lete土Beare蛙rReq駐uest番messa喉ge(s)尾tot穗hatC嫁Nnod機(jī)e.玻8.罪料TheU興Eini翅t(yī)iate善saT池racki尋ngAr脅eaUp掛date蒙proce松dure室when橡oneo累fthe猶cond糧ition霸slis氏tedi兼ncla看use"苗Trigg級(jí)ersf音ortr煎ackin植gare家aupd豪ate"脈appli苗es.爬NOTE

遭4:蛛策Itis反only套asu純bset天ofth駛eTA數(shù)updat拌epro跨cedur略etha農(nóng)tis港perfo混rmed青byth騾eMME煤,sin璃ceth嘴eUE曲isin桃ECM綢命CONNE絨CTED陽(yáng)state祖.The犯UEi久sinf模ormed志abou奇tthe想ISR華statu止sin墻theT樹(shù)racki瑞ngAr油eaUp斷date艦proce丑dure.仗1.2并啞S1-ba走sedh將andov昨er近胳飾Gener閑al壽TheS足1-bas繡edha龜ndove銜r(shí)pro貼cedur掏eis寺used皺when撒theX奴2-bas休edha回ndove睡rcan鋼notb隸euse砍d.Th們esou邀rcee廚NodeB李init猾iates噴aha著ndove皂rby弟sendi紙ngHa祝ndove趴rReq胸uired湯mess曠ageo還vert雙heS1執(zhí)-MME流refer盛ence帳point毛.Thi搶spro憑cedur鵲emay計(jì)relo暮cate德theM么MEan盾d/or唐theS迷ervin已gGW.購(gòu)The轉(zhuǎn)sourc莊eMME固sele醉ctst取heta濱rget迫MME.養(yǎng)TheM續(xù)MEsh睜ould孔notb雕erel基ocate蓬ddur東ingi傘nter-涂eNode狡Bhan門(mén)dover掛unle羨ssth封eUE朱leave嚇sthe州MME先Pool梯Area孕where確the從UEis尸serv圓ed.T故he攏今MME(拍targe泡tMME笛for槳MMEr調(diào)eloca死tion)叮dete貴rmine供sif疤theS幣ervin違gGW造needs帥tob蜓erel退ocate流d.If西the覽Servi掉ngGW變need保sto超bere課locat德edth振eMME餃sele圓ctst辰heta滅rget恭Servi鄉(xiāng)ngGW滿,as覽speci丟fied薯incl羽ause

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3師6.300隔

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