[{"name":"SP-220668","title":"New WID on IMS-based AR Conversational Services (IBACS)","source":"TNO","contact":"Simon Gunkel","contact-id":70865,"tdoctype":"WID new","for":"Approval","abstract":"Objective: The objective of this work item is to create a new specification for IMS-based AR conversational services. The features for RTP-based real-time communication, which can be used by IMS and non-IMS (AR) conversational services, will be specified in another new specification (as part of the 5G_RTP work). The relevant features and functional components specified for MTSI in TS 26.114 will be referenced and\/or enhanced, if required. More specifically, this work item aims to conduct normative work to specify the following aspects: 1. Terminal architectures for standalone, edge-assisted, and wireless tethered UEs integrated with an MTSI client (as defined in TS 26.114). NOTE1: The work done for FS_5GSTAR [and the result of Rel-18 WI MeCAR] should be taken into consideration. Work on tethered UEs heavily depends on SmarTAR, thus any work on tethered UEs in IBACS will be aligned on the readiness and timeline of SmarTAR. 2. IMS session setup, control, and capability negotiation procedures for traditional and AR media supporting multiple device-types in one IMS communications session. NOTE2: This relates to the potential normative work identified in TR 26.998 (5GSTAR): Conversational AR services require real-time communication both in the downlink and in the uplink & A protocol stack and content delivery protocol for real-time communication based on RTP & A common session and connection establishment framework, with instantiations based on SIP and SDP for IMS 3. Real-time transport of traditional as well as AR media, scene description, and metadata via IMS media path including Data Channel. Transport can be either one-way or bi-directional. NOTE3: With the term AR media we refer to AR media as defined in Section 4.4 in 26.998 (including volumetric media). NOTE4: Media capabilities will be defined in MeCAR and subsequently integrated\/adopted in IBACS. NOTE5: RTP-based media transport will be defined in 5G_RTP and subsequently integrated\/adopted in IBACS. NOTE6: This relates to the potential normative work identified in TR 26.928 (5GXR): Support of static\/dynamic 3D objects formats and transport for real-time sharing Further this relates to the identified potential normative work in TR 26.998 (5GSTAR): Social XR Components Merging of avatar and conversational streams to original media (e.g., overlays, etc.) 4. Support of spatial descriptions needed to support spatial computing (as per TR 26.998) for conversational IMS communications. NOTE7: This objective is subject to the conclusion of FS_5GSTAR and will be based on the spatial descriptions that will be defined in MeCAR. NOTE8: This relates to the potential normative work identified in TR 26.928 (5GXR): 6DOF metadata framework and a 6DOF capable renderer for immersive voice and audio. & Proper annotation and metadata for each object to place it into scene. & Description and rendering of multiple objects into a Social XR experience. 5. Specify the integration of the IVAS spatial audio codec in the new planned specification, in coordination with the integration into TS 26.114 to be done in the IVAS work item and IVAS integration into the MeCAR work item.","secretary_remarks":"Company Update to SP-220609. This WID NEW was approved","agenda_item_sort_order":39,"ainumber":"6.5","ainame":"New Release 18 Work Item Descriptions","tdoc_agenda_sort_order":10900,"status":"approved","reservation_date":"2022-06-07 13:58:40","uploaded":"2022-06-08 12:49:49","revisionof":"SP-220609","revisedto":"","release":"","crspec":"","crspecversion":"","workitem":"","crnumber":"","crrevision":"","crcategory":"","tsg_crp":"","lsreplyto":"","lsto":"","Cc":"","lsoriginalls":"","lsreply":"","link":"https:\/\/www.3gpp.org\/ftp\/tsg_sa\/TSG_SA\/TSGS_96_Budapest_2022_06\/Docs\/SP-220668.zip","group":"SP","meeting":"SP-96","year":2022,"uicc_affected":null,"me_affected":null,"ran_affected":null,"cn_affected":null,"clauses_affected":null,"crsinpack":null,"crsinpacknumber":0}]