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Andmeside IRT 0030 loeng 12 23. nov. 2005

Andmeside IRT 0030 loeng 12 23. nov. 2005. Avo Ots telekommunikatsiooni õppetool raadio- ja sidetehnika instituut avots@lr.ttu.ee. SIP. Multi-access IMS. Common IP version (=IPv6) makes the multi-access case much easier. S-CSCF. IMS (IPv6). P-CSCF. 3GPP access nw. GGSN. P-CSCF.

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Andmeside IRT 0030 loeng 12 23. nov. 2005

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  1. AndmesideIRT 0030loeng 12 23. nov. 2005 Avo Ots telekommunikatsiooni õppetoolraadio- ja sidetehnika instituut avots@lr.ttu.ee

  2. SIP Multi-access IMS • Common IP version (=IPv6) makes the multi-access case much easier S-CSCF IMS (IPv6) P-CSCF 3GPPaccessnw GGSN P-CSCF P-CSCF 3GPP2accessnw PDSN WLANaccess nw SIP Signaling for building up the session User IP data

  3. Hdr Len Identification Flg Fragment Offset Header Checksum Options... Padding shaded fields are absent from IPv6 IPv4 vs IPv6 Ver. Hdr Len Type of Service Total Length Ver. Traffic Class Flow Label Identification Flg Fragment Offset Payload Length Next Header Hop Limit Time to Live Protocol Header Checksum Source Address Source Address Destination Address Options... Padding Destination Address

  4. Basic Address Types unicast: for one-to-one communication multicast: for one-to-many communication anycast: for one-to-nearest communication U M M M A A A

  5. Standardized technology SIP IPv6 Color displays XHTML and TCP/IP MMS Imaging and camera integration GPRS EDGE WCDMA CDMA2000 Multimode Video Bluetooth WLAN MultimediaStreaming Positioning Symbian MIDI Presence Java DRM

  6. Peter: 00:00:00 Thomas: 00:00:00 SIP Game data IP Connection > Peter: I am going to win this time! >Thomas: Yeah right, in your dreams! > Peter: I am going to win this time! >Thomas: Yeah right, in your dreams! peer-to-peer IP connectivity UMS CSCF IPv6 Chat Thomas Peter Invite player Peter: 00:00:00 Thomas: 00:00:00 Chat Chat Push to Stream Quit

  7. Peter chooses to add a streaming component to share what he is seeing SIP Game data IP Connection Streaming video from Peter: peer-to-peer IP connectivity UMS CSCF IPv6 Streaming video Thomas Peter Invite player Peter: 00:00:00 Thomas: 00:00:00 Chat > Peter: hey, look what just passed by! Push to Stream Quit

  8. Media components Signaling only Peter: 00:00:00 Thomas: 00:00:00 SIP Game data Chat IP Connection No NATs in between, public IP addresses are needed Example services: gaming, chat, streaming, Voice/video over IP, etc. mobile services = ”serverless media” UMS CSCF IPv6 Thomas Peter The SIP/IMS user plane is peer-to-peer in nature - SIP/IMS sessions between mobiles in different Private IPv4 address spaces become highly complicated. This is why public IP addresses are required. The only future proof solution is provided by IPv6.

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