1 / 8

Development and evolution of 3GPP Core Network

Development and evolution of 3GPP Core Network. Hannu Hietalahti, CT chairman. CT officials. Chairman Hannu Hietalahti / Nokia (ETSI) Vice Chairs Gary Jones / T-Mobile (ATIS) Steve Mecrow / O2 (ETSI) Akishige Noda / Fujitsu (TTC) MCC Support Kimmo Kymalainen (MCC). CT ToR.

lavada
Download Presentation

Development and evolution of 3GPP Core Network

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Development and evolution of 3GPP Core Network Hannu Hietalahti, CT chairman

  2. CT officials • Chairman • Hannu Hietalahti / Nokia (ETSI) • Vice Chairs • Gary Jones / T-Mobile (ATIS) • Steve Mecrow / O2 (ETSI) • Akishige Noda / Fujitsu (TTC) • MCC Support • Kimmo Kymalainen (MCC)

  3. CT ToR • At discontinuation of TSG-T and TSG-CN the new TSG-CT became the “core network and terminal” group • Technical tasks • Cellular and IMS protocols • CS and PS domain • UE L3 protocols (CT1) • Interworking with external networks (CT3) • Network interfaces (CT4) • Open Service Architecture, OSA (CT5) • Smart card applications (CT6)

  4. 3GPP TSG CT CT mission: services via any access network ! Common CN GSM 1900 ? 3G HSxPA GSM 1800 GSM 900 LTE GPRS EDGE WLAN Rel-5/6 GSM ph.1 Rel-6/7 Rel-8 and onwards R97 R98 R99 ...and let’s make it IP all the way to the terminal !

  5. IP Multimedia Core SIP IMS SIP Packet-switched network (2G or 3G GPRS or WLAN) • IP Multimedia Subsystem • PS domain services only • Bearer agnostic • GSM, UMTS, WLAN, fixed xDSL, HSxPA, 3.9G • SIP / SDP driven sessions on whatever media • Endpoint-to-endpoint or endpoint-to-service • Multimedia, Messaging, Presence, etc • The protocol is there, what are your application needs? • IETF defined protocols re-used by 3GPP • Initial version was frozen in Rel-5 • Improvements with more functionality in Rel-6 • Presence, messaging, multiple registration, forking,... • Still more optimisations & new functionality in Rel-7 • Voice call continuity (between CS & PS), Combinational services (in CS & PS domain) • Adaptation to TISPAN fixed network • IMS emergency calls

  6. WLAN interworking • Currently specified for IEEE 802.11, but not restricted to that version • Re-use of IEEE WLAN specifications • Definition of the architecture • Functionality • Detection of the AP’s • Associating with AP • Detection of HPLMN connection • Authentication • Establishment of tunnel to HPLMN packet gateway • Voice call continuity in Rel-7 • WLAN VPN access in Rel-7

  7. Some of the main Rel-7 work items • CSI (CS and IMS combinational service) • Requires both CS and PS connectivity at the same time • CS domain voice call with additional information e.g. video clip via IMS • VCC (Voice Call Continuity) • Voice call continuity between CS domain and PS domain • Transition between CS and PS cells without losing the call • IMS evolution • NGN, IMS over fixed access • IMS emergency calls based on SIP emergency sessions • IMS multimedia telephony • Conferencing and messaging enhancements (DM and BFCP) • ...and several WLAN and traditional cellular protocol evolution work items

  8. What’s next... Stabilising Rel-7 Rel-8 Long Term Evolution network architecture adapted via SAE to LTE radio Migration from CS domain voice services to PS domain IMS multimedia services

More Related