GSC-13 NGN TIA DOCUMENT #: GSC13-GTSC6-22 FOR: Presentation SOURCE: AGENDA ITEM: GTSC Agenda Item 4.1 NGN CONTACT(S): Cheryl Blum GSC-13 NGN TIA Submission Date: July 15, 2008

Common IMS (1) Material from several IMS/MMD-related documents has been included in the Rel. 8 Common IMS initiative in 3GPP. As a result, the following TIA standards will be capped, with any further enhancements to be undertaken in the corresponding 3GPP documents. TIA-873-B, All-IP Core Network - Multimedia Domain TIA-1032-A, Presence Service TIA-1069, Conferencing using the IP Multimedia Core Network TIA-1091-B, IMS Security Framework TIA-1111, VoIP Emergency Services TIA-1112, SIP-ISUP Interworking TIA-1125, Enhanced MMD Security, Stage 1 TIA-1126, VoIP Supplementary Services Feature Descriptions TIA-1133, All-IP Network Emergency Call Support, Stage 1 TIA-1136, VoIP Supplementary Services

Interoperability and Inter-working Two projects are in progress in 3GPP2 to support IP level convergence HRPD/E-UTRAN Interoperability, and HRPD/WiMAX Interoperability Both projects will be ready for publication by EOY08

Strategic Direction TSB-183, Common IMS Impacts to 3GPP2 Specifications, is being developed to provide both a mapping of the 3GPP2/TIA documents to the 3GPP Common IMS counterparts, and information regarding differences in IMS network elements and interfaces between 3GPP2/TIA and 3GPP specifications for inter-working purposes Close collaboration between 3GPP2 and both 3GPP and WiMAX Forum is in place to support convergence

Challenges Ensure ongoing compatibility between TIA standards and Common IMS specifications Ensure TIA requirements are met in the Common IMS specifications TSB-183 will be updated appropriately as new CDMA-based material is incorporated into Common IMS

Next Steps/Actions Prepare additional documents in 3GPP2 for potential inclusion in Common IMS in Rel. 9 TIA has recently been requested to publish TIA-1127, MMD Enhanced Policy, and 3GPP was notified that this is intended to be included in Rel. 9 3GPP2 has work items for IMS Centralized Services (ICS) and SIP-based Femto which are potential candidates for inclusion in Common IMS in Rel. 9 As future IMS-based functionality is developed in TIA/3GPP2, applicability for Common IMS will be a key consideration Continue close collaborative work with 3GPP