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1、Network and Protocol,UMTS/LTE,Agenda,UMTS network revolution LTE network Protocol example,UMTS,Universal Mobile Telecommunications System GSM-WCDMA Three important versions R99(R3) First 3G network, WCDMA implement R4 NGN implement, control and data divided. R5 IMS implement, entern the IP world,UMT
2、S before R3,GSM network 2 G Circuit Domain GPRS network 2.5 G = GSM+GPRS Packet Domain,GSM/GPRS network,GSM Network Elements,GSM Interface&Protocol,GPRS added Network Elements,GPRS added Interface & Protocol,UMTS R99 (R3),Radio Accession Network implement Designed for WCDMA Hard mode for engineer RA
3、N composed by UE MS Node B BTS RNC BSC,UMTS R99 network,UMTS R99 added Network Elements,UMTS R99 Interface & protocol,UMTS R4,Next Generation Network implement Real Software Mobile Switch Center Control and Data divided Hell mode for engineer MGW element is been,UMTS R4 network,UMTS R4 added Network
4、 Elements,UMTS R4 added Interface & Protocol,UMTS R5,IP multi-media subsystem HSS evolution GGSN will become the door of IMS for UE Nightmare mode for engineer,UMTS R5 arch,IMS arch,IMS arch - II,UMTS R5 added Network Elements,UMTS R5 added Interface and Protocol,XoIP, light IP network,Before IMS im
5、plementation, there should something for custom. “VoIP”: Voice on IP, (IuPs, IuCs, ISUP, TUP) AoIP: A interface on IP (BSSAP, Gb) Signtran IP/SCTP/M3UA replace anything RTP/RTCP do the same thing on the useplane,Agenda,UMTS network revolution LTE network Protocol example,LTE Network,Not 4G network R
6、eplace the 3G network at all on IP phase Pure IP base network No possible harder than the Nightmare mode in Diablo2, So it is the Diablo3,LTE network and protocol,Agenda,UMTS network revolution LTE network Protocol,Protocol for Telcom,Can be divided into two types ASN .1 based Tag Length Value forma
7、t MTP, SCCP, MAP, BSSAP, RANAP, BSSGAP Maybe still ASN .1 based, with the ASCII format “Attr” = “Parameter value” H.248, SIP, SDP, RTP,MTP protocol,Message Transfer Part Point Code Only support PC route,SCCP Protocol,Signaling Connection Control Part SSN Global Title route and PC+ssn route Four type
8、s primitive Request, Response (Upper SCCP) Confirm, Indication (SCCP Upper) Message type CR, CC, CREF, RLSD, RLC, DT1, DT2, AK, UDT, UDTS, ED, EA, RSR, RSC, ERR, IT, XUDT,XUDTS,SCCP and MTP Message structure,Sccp Message,BSSAP,Can be divided to two parts BSSMAP: mobile manager function DTAP: Call an
9、d Session Control Part Message can be divided to three parts Connection Create message Connection Message Un-Connection Message,BSSAP Message,BSSAP Message Analysis,Sure the message type Get the Message Type and Coding from Protocol Get the detail element info,TCAP,TCAP message Type TCAP Begin TCAP
10、Continue TCAP End TCAP Abort, (U,P) Transaction Dialogue Components,MAP,Invoke ID OP code Different version has different IE format,location update,outgoing,ingoing,HO,BSSGP,Similar role as BSSAP in PS domain Sub-Function GMM NM SM SMS Relay,Attachment Procedure,PDP operation,Sigtran,A collection of
11、 Protocol Let SS7 run on the IP phase SCTP EP: IP address + port SA and Stream TSN and SSN M3UA: it is the mirror of MTP3 on IP phase NIS,SIP,Base on the UDP or TCP Redirect , Location/Register and Proxy Server Request and ACK message From and To address “name”address:port Cseq: Same in on session S
12、DP: real connection parameters,SIP Call,SIP in NGN,Message flow in MSC,SIP in the NGN Call-1,SIP in the NGN Call-2,SIP Message example,SIPMSG IN:INVITE sip:0108193200202.202.91.193;user=phone;sc=200 SIP/2.0 Via: SIP/2.0/UDP 202.202.91.55:5060;branch=2bbc3929.0 Via: SIP/2.0/UDP 202.202.91.60:5060;bra
13、nch=5ab53468 To: “8193200“ From: “0105160004“;tag=caca5b37-6b21370d Call-ID: 19242a05-0002-0193202.202.91.55 CSeq: 19506 INVITE Contact: Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,INFO,PRACK,UPDATE P-Asserted-Identity: Max-Forwards: 69 Record-Route: Supported: 100REL User-Agent: ZTE Softswitch/1.0.0 Content-Type: application/sdp Content-Length: 120 v=0 o=ZTE 59 59 IN IP4 202.202.91.55 s=phone-call c=IN IP4 202.202.91.60 t=0 0 m=audio 4006 RTP/AVP 8 a=ptime:20,