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1、看1oG学5G(66)-NSA终端在4G小区的ATTACH#5G#NSA一、4G(1TE)中AttaCh在1TE系统中终端的Attach流程是其在核心网MME上注册过程;支持NSA的终端(UE)是在回复锚点小区的RRCConnectionSetupComp1ete消息中包含ATTACHREQUEST(initia1-NAS)内容。在消息IEdedicated1nfoNAS中包含了终端初始接入网络的内容。二、4G中AttaCh分类ATTACHREQUEST消息IE中包括EPSAttach类型、EPS移动身份、UE网络能力、ESM消息容器、终端的旧P-TMS1签名、GUTI、上次接入注册TAI、D
2、RX参数、旧位置区域识别、AttaCh更新类型、语音域偏好和UE使用设置等。其中IEEPSAttaChTyPe指示了附着过程目的,3GPP定义终端附着有三种类型: EPSattach:仅表示EPS服务的附着; CombindEPS/IMSIattach:指示EPS和nonEPS服务的附着; EPSEmegencyattach:表示紧急承载服务的附着。其中IEEPSMObi1e1dentity可以是GUTI、IMS1或IMEI。如果UE持有有效GUTI(本地GUT1或映射GUTI),则UE应包含GUTI。如没有效的GUrn可用,UE应包含IMS1作为EPSMObi1eIden1ityIEo如果U
3、E为紧急承载服务而附加,并且如上所述没有持有有效的GUTI、P-TMSI或IMSI,则IME1应包含在EPS移动标识IE中;ESM消息容器IE是启用EMM消息中ESM消息的捎带式传输(其可能包含IE,例如EPS承载身份、过程事务身份、PDN连接请求、PDN类型、请求类型、ESM信息传输标志、E1T(ESM信息传输)、协议配置选项(配置协议、DNS服务器地址请求等);IE附加更新类型提供有关组合附加过程请求类型的附加信息。Bit1值。示“没有附加信息”,1表示“只有短信如果UE支持CSFa11Back和SMSoverSG,或者如果UE配置为支持IMS语音但不支持IxCS回退,则应包括语音域偏好和
4、UE的使用设置IE0该IE向网络提供UE的使用设置和E-UTRAN的语音域偏好。详见3GPPTS24.008第10.5.5.28节如果UE持有有效的最后访问的注册跟踪区域标识(TAI),则应包括IE最后访问的注册TA1三、终端AttachReqIIeSt消息内容3.1AttachRequest是终端通过eNode向核心网发出的注册请求。图2.AttachRequest消息图MsgEntcr.no-security-protection-MM-message(非加密保护的MM信息).msg-body14101000001TUttachRequestnAS-key-set-identifier(N
5、AS密钥ID)2120tsc:native-security-context(0) 001-nAS-key-set-identifier:nas-KSI1(I)(NAS密钥ID:KS1I)cPS-a1tach-iype(EPSAttach类型) 0-SparerOxO(0).ePS-attach-type-va1uexombined-attach(2)(EPSAttach类型:联合附)3OB000010111O1d-GUTI-Or-IMSI(终端旧GUTI或IMSI)4F6110IyPe-Of-ideniity:guti(6)(终端ID:GUTI)odd-or-even-indic:even-
6、number-and-a1so-when-the-EPS-Mobi1e-Identity-is-used(0),奇偶指示:EPS终端标识偶数J1111-SpareiOxf(15)guti-body(GUTI)7mcc-mnc:0x64f000(6615040)(MNC:46000)9mME-Group-ID:0x163(355)(MME组ID:355)10mME-Code:0x66(102)(MME编码:102)14mTMSI:OXde557c7e(3730144382)(终端mTSI3730144382)1507000001111uc-nctwork-capabi1ity(UE支持的网络能力
7、)16FO1eEA0:SUPPorted(I)(4G加密算法:eEAO支持) 1eEA1:supported(1)(4G加密算法:eEA1支持) 1eEA2:sUpported(1)(4G加密舞法:eEA2支持) 1eEA3:supported(I)(4G加密算法:eEA3支持)0eEA4:not-supported(0)(4G加密算法:eEA4不支持)0eEA5:not-supported(0)0-eEA6:not-supported(0)0cEA7:not-supportcd(0)17FO1e1A0:SUPPorted(I)(4G完保篝法:eIA0支持) 1eIAI!supported(1
8、)(4G完保算法:eIA1支持) 1eIA2:supported(1)(4G完保菖法:eIA2支持) 1-e1A3Zsupported(1)(4G完保算法:eIA3支持)0cIA4:not-supportcd(0)(4G完保算法:eIA4不支持)0e1A5:not-supported(0)0-eIA6:not-supported(0)Oe1A7:not-supported(O)I8CO1uEAO:supported(1)(3G加密算法:UEAO) 1UEAksupported(1)(3G加密算法:uEA1支持) OuEA2:not-supported(0)(3G加密算法:uEA2不支持) 0u
9、EA3not-supporteuCS2:ue-has-no-preference-between-the-use-of-the-defau1t-a1phabet-and-the-use-of-UCS2(1)U1Aksupported(1)(3G完保算法:uIA1支持)-OuIA2:not-supported(0)(3G完保算法:uIA2不支持)0-u1A3:not-supported(0)0-uIA4:not-supported(0)0u1A5:not-supported(0)0-uIA6:not-supported(0)0uIA7:not-supported(0)20O100sparc2:0
10、x0(0)-0h245ASH:not-supporicd(0)0aCCCSFB:not-supported(O)-O-IPP:not-supported(O)0ICS:not-supported(O)O-.sRVCCsrvcc-from-E-UTRAN-to-cdma-not-suported(O)(SRVCC到CDMA不支持)1nF:notification-proccdurc-supportcd(1)21ePCO:ex1cndcd-pro1oco1-configuration-options-not-supportcd(O)221000sparc5:0x0(0) On1MODE:n1-mo
11、de-not-supported(O)(5G中N1模式不支持) 1dCNR:dua1-connectivity-with-nr-supported(1)(ENDC双链接:支持) 0000SPare4:0x0(0)24eSM-message-container2502-OOIOTno-security-protection-SM-message0000-cPS-bcarcr-idcn1ity:OxO(0)260100000001procedurc-tran$action-identity:Ox1(1)msg-bodymsg-body27PDNConnectivityRequest(PDN连接请求
12、)pDN-type(PDN类型)28310-SparezOxO(0)-011-pDN-type-va1ue:iPv4v6(3)(PDN类型:IPv4v6)request-type(Attach类型)-0-SparerOxO(0)rcquest-typc-va1ue:iniiia1-request(i)(Attach类型:初始注册请求)30ProtoeO1-COnfVigUratiOn-OPtioI1S31801excx1(1)000configuration-protocokpPP-for-use-with-IP-PDP-type(0)protoco1-1ist-packageProtoco1
13、-Iist-Ue2NetPCOItem-Ue1Net332100100001po1oco1-id-uc2necipcp(32801)potoco1-id-content-ue2net34ipcp(IPK*ipcpmsg35configure-request360100000001id:0x1(1)440000000000primary-dns-address:00000000(首个DNS地址)500000000000secondary-dns-address:00000000(其次DNS地址)520300000011potoco1-id-ue2ncudns-server-ipv6-addres
14、s-rcqucst(3)potoco1-id-con1cnt-ue2ne153dns-server-ipv6-address-requescNU11PCOItem-Ue1Net55potoco1-id-ue2net:ip-address-a11ocation-via-nas-signa11ing(10)potoco1-id-content-ue2net56ip-address-a11ocation-via-nas-signa11ing:NU11PCOItem-Ue2Nc580200000010potoco1-id-ue2necim-cn-subsystem-signa1ing-f1ag(2)potoco1-id-conient-ue2nct59im-cn-subsystem-signa1ing-f1ag:NU11PCOItem-Ue2Net61OC00001100potoco1-id-ue2net:p-cscf-ipv4-address-request(12)potoco1-id-content-ue2net62p-cscf-i