Communication Service Evolution

Lecture describing evolution from legacy terminal access on IMS towards flexible browser-based communication.

Includes mandatory content such as IMS components & signaling, VoLTE, etc. but deducts reasoning from carrier evolution and transformations seen in practise. A few words about Internet based communication services and WebRTC should support discussion.

Presented 2015-12-09 at Slovak University of Technology

Transcript

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6. Services Data/IP Networks Mobile Networks PSTN/ISDN CATV Access Transport & Switching Networks Wireless Access Wireline Access IP Backbone Existing and newly emerging services Service & Network Control (QoS, Security, IP Mobility) Too costly, per-service network architecture Single/simple/cost-effective network infrastructure for existing & new services
7. Access & Transport Plane Core Network Session Control Plane Service Architecture Applications/Services Plane HSS CSCF Access Networ k Other Networks Web Portal Application Servers Session Control Centralized Databases Media Control & Gateways Media Server
8. Voice/video SMS/MMS Instant messaging Mail Voice/Video/IM Conferencing/App sharing/MM chat/ Others content content Shared content Today services Integrated „all-IP“ services
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17.      VoLTE
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44.    PCRF P-CSCF HSS Rx I-CSCF S-CSCF AS Sh Cx Cx Mw Mw Mw ISC MGCF MGW Mg VCC AS ISC Sh ATCF ATGW Mw Mw Mw
45. Wi-Fi (untrusted) UTRAN GERAN BTS AuC 2G BSC NodeB RNC SGSN GGSN HLR MSC GMSC Abis A Iu-CS Iub Gs Gn E D C Gr Gc VLR B Gb PCRF Gx PSTN Internet E-UTRAN eNodeB EPC MME SGW PDN GW P-CSCF HSS S6a S1-C/S1-MME S1-U S5 SGi S7 Rx I-CSCF S-CSCF AS Sh Cx Cx Mw Mw Mw ISC Gi MGCF MGW Mg ePDG S2b/SMOG Wi-Fi AP AAA SWm SWx SWn S4 S3 H 3G 4G Iu-PS Iur S11 Wi-Fi I2 SGs VCC AS ISC Sv MAP D’/Gr’ SGi UE UE UE UE LTE-UU Uu Um Sh Wi-Fi (trusted) Wi-Fi AP Wi-Fi UE MC-GW (eq.SGW) SWa SWu S2c App access ATCF ATGW Mw I2 Mw Mw S6b Wi-Fi (untrusted) UTRAN GERAN BTS AuC 2G BSC NodeB RNC SGSN GGSN HLR MSC GMSC Abis A Iu-CS Iub Gs Gn E D C Gr Gc VLR B Gb PCRF Gx PSTN Internet E-UTRAN eNodeB EPC MME SGW PDN GW P-CSCF HSS S6a S1-C/S1-MME S1-U S5 SGi S7 Rx I-CSCF S-CSCF AS Sh Cx Cx Mw Mw Mw ISC Gi MGCF MGW Mg ePDG S2b/SMOG Wi-Fi AP AAA SWm SWx SWn S4 S3 H 3G 4G Iu-PS Iur S11 Wi-Fi I2 SGs VCC AS ISC Sv MAP D’/Gr’ SGi UE UE UE UE LTE-UU Uu Um Sh Wi-Fi (trusted) Wi-Fi AP Wi-Fi UE MC-GW (eq.SGW) SWa SWu S2c App access ATCF ATGW Mw I2 Mw Mw S6b
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50.             1Ericsson
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57.        
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60.    1Dean Bubley, Martin Geddes: Future of Voice. October 2013. 2Dean Bubley, Blog 2014
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64. 1Voxeo Labs: IMS World Forum - WebRTC workshop. “WebRTC - it’s [almost] here!
65. 1Voxeo Labs: IMS World Forum - WebRTC workshop. “WebRTC - it’s [almost] here!
66. 1Voxeo Labs: IMS World Forum - WebRTC workshop. “WebRTC - it’s [almost] here!
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84. IMS Subscriber Private UID 2 Private UID 1 Public UID 1 Public UID 3 Public UID 2 Public UID n . . . }Implicit Set
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86. P-CSCF DNS UE
87.     ngnlab.eu. 7200 IN NAPTR 10 50 "s“ "SIP+D2T“ _sip._udp.ngnlab.eu.   _sip._udp.ngnlab.eu. 7200 IN SRV 0 0 5060 icscf.ngnlab.eu.   icscf.ngnlab.eu. 7200 IN A 147.175.103.213
88. P-CSCF I-CSCF S-CSCF DNS UE HSS
89.  P-Access-Network-Info  From To  Path   Route  Authorization  Service-Route  Route
90.   P-Preferred-Identity  P-Asserted-Identity  P-Associated-URI  Event: reg
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92. P-CSCF I-CSCF S-CSCF DNS UE
93. P-CSCF I-CSCF S-CSCF HSS UE To simplify matters, DNS is omitted in these slides.
94.  MESSAGE   SUBSCRIBE NOTIFY  PUBLISH  
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107. Author Version