NR注冊流程Registration

1、注冊流程(Registration)UE做業(yè)務(wù)之前，第一步就是在網(wǎng)絡(luò)上進(jìn)行注冊，所以，注冊流程是所有流程中最重要也最 全面的一個步驟，這個流程理解并掌握了，對后面的TAUk切換等流程均有幫助，根據(jù)規(guī)范可知，注冊流程涉及 UE和網(wǎng)絡(luò)的定時器如下：AMFUEREGISTRATION REQUESTIf TempIDallocatedStart T3550Start T3510REGISTRATION ACCEPTStop T3510Stop T3550REGISTRATION COMPLETE If TempID allocatedORREGISTRATION REQUESTStart T3510

2、REGISTRATION REJECTStop T3510注冊類型用3bit來進(jìn)行指定，目前分為 4中類型，如下： initial registration mobility registration updating periodic registration updating emergency registration注冊結(jié)果也是由3bit來進(jìn)行表示，分為 3類，如下： 3GPP access Non-3GPP access 3GPP access and non-3GPP access 服務(wù)類型由4bit位進(jìn)行表示，如下： signalling data mobile terminat

3、ed services emergency services emergency services fallback high priority access elevated signalling unused; shall be interpreted as "signalling", if received by the network unused; shall be interpreted as "signalling", if received by the networkunused; shallbe interpretedas "

4、;data", ifreceivedby the networkunused; shallbe interpretedas "data", ifreceivedby the networkunused; shallbe interpretedas "data", ifreceivedby the network關(guān)于注冊識別原因值，我在另外一篇文章中有詳細(xì)介紹，感興趣的可以去找一找。幾個相關(guān)的縮寫術(shù)語：SUCI (Subscription Concealed Identifier )訂閱隱藏標(biāo)識符：是一個隱私保護(hù)標(biāo)識符，包含隱 藏的SUPI,組成

5、如下：SUCIRouting Indicator1 - 4 digitsProtectionScheme Idvalue in range 0 15Home Network Scheme Output Public Key Idvalue in range format dependent on0 255protection schemeSUPI Type Home Network Identifier <> <>value in range format dependent 0 7on SUPI typeSUPI (Subscription Permanent Ide

6、ntifier )訂閱永久標(biāo)識符：SUPI是分配給5G系統(tǒng)中每個用戶的全球唯一 5G訂閱永久標(biāo)識符。SUPI類型 indicate an IMSI, a network specific identifier , a Global Line Identifier (GLI) or a GlobalCable Identifier (GCI)5G-GUTI (5G Globally Unique Temporary Identifier ):有兩個主要的組成， 一個是識別 AMF 的 5G-GUTI,另一個是在 AMF中唯一識別 UE的5G-GUTI。<5G-GUTI> = <

7、GUAMI><5G-TMSI>,where <GUAMI> = <MCC><MNC><AMF Identifierand <AMF Identifier> = <AMF Region ID><AMF Set ID><AMF Pointer><5G-S-TMSI> = <AMF Set ID><AMF Pointer><5G-TMSI>UE端網(wǎng)絡(luò)端狀態(tài)如上饒-e 迂，CtJFKgD-1 exxTEicii pion3adllie-Jwnal

8、f¥1tMkm sncmifii LEglLzrttde quo二ml-N-ai-mjhia.rej-t'fcd l> a*&,7、-5Rlt«sd HE. 立«. "), IWku d-wa國畫。工-Cuuutm jilkeLu電 信1虱-Lima k-yaJHW>BiU«d UEm£ii a Dt 疆j mueJid-D.f 丘山口口 1K23.502定義了注冊流程的步驟如下:UE(R)ANNew AMF1. Registration RequestOld AMFPCFSMFAUSFUDM2. AMF

9、seSection3. RegistrationRequest4 NamfComrnunicationUEContextTransfer5 Namf_Communication_UEContextTransferresponse.Identity Request7. Identity Response 18. AUSFselectiona-aMl9. Authentication/Security10. NamfCommunicationRegistrationCompleteNotJ1. IdeQtiy_ Regues/ResponseEIRfy12. N5g-eir_EcuipmentId

10、entit:yCheck_Get;13. UDM1selection114a. Nudm_UECM_Registra，ion14b. NudmSDMGet14c. NudmSDMSubscribe-a w；15. PCF sLselection18.14d. NudmUECMDeregistrationNotify14e. NudmSDMUnsubscribe16. AM Policy Association Establishment/Modification19.21. Registration Accept17. Nsmf_PDL NsmfPDUSession_UpdateSMContext /SessionReleaseSMContN2 AMF Mobili.N2 AMF Mobil-=!19b21b. UE Policn Complete22. Registratio23.24.詳細(xì)解釋可以去看 23.502 4.2.2.2ext