{"id":6540,"number":"26.851","type":"TR","title":"Enhancements to Multimedia (EMM); Download Delivery Enhancements (DDE) and IMS-based PSS and MBMS streaming synchronization Enhancements (IPME) aspects","series":26,"status":"Under change control","initial_release":"Rel-11","primary_group":"S4","secondary_groups":[],"portal_id":1477,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1477","dynareport_url":"https://www.3gpp.org/dynareport/26851.htm","publication_scope":null,"radio_technologies":[],"first_seen_at":"2026-09-16T11:04:53.932120+00:00","updated_at":"2026-10-16T09:34:55.609033+00:00","raw_metadata":{"source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1477","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-08T00:27:29.779285+00:00","versions":[{"release":"Rel-11","version":"11.2.0","meeting":"SA#62","upload_date":"2013-12-19","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.851/26851-b20.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":39193,"version_status":null},{"release":"Rel-11","version":"11.1.0","meeting":"SA#59","upload_date":"2013-03-20","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.851/26851-b10.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":33121,"version_status":null},{"release":"Rel-11","version":"11.0.0","meeting":"SA#58","upload_date":"2012-12-20","comment":"Editorial issues to be fixed ...","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/26_series/26.851/26851-b00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null}],"release_presence":[{"release":"Rel-11","first_version_date":"2012-12-20","latest_version_date":"2013-12-19","first_version":"11.0.0","latest_version":"11.2.0","version_count":3}],"classifications":[],"work_items":[{"uid":530048,"acronym":"EMM","effective_acronym":"EMM","title":"Enhancements to Multimedia: PSS, MMS, and MBMS Enhancements and Performance Improvements","responsible_groups":["S4"],"release":"Rel-11","status":"PCG approved","wi_level":"Feature (1st level)","type":"Work Item","first_release":"Rel-11","last_release":"Rel-11","provenance_type":"official","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20261012.zip","association_sources":["crdb"],"association_status":"source_tracked"},{"uid":530248,"acronym":"EMM-DDE","effective_acronym":"EMM-DDE","title":"Download Delivery Enhancements for MBMS","responsible_groups":["S4"],"release":"Rel-11","status":"PCG approved","wi_level":"Building Block (2nd level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1477","association_sources":[],"association_status":"historical_unverified"},{"uid":530348,"acronym":"EMM-IPME","effective_acronym":"EMM-IPME","title":"IMS-based PSS and MBMS Streaming Synchronization Enhancements","responsible_groups":["S4"],"release":"Rel-11","status":"PCG approved","wi_level":"Building Block (2nd level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1477","association_sources":[],"association_status":"historical_unverified"},{"uid":480004,"acronym":"TEI11","effective_acronym":"TEI11","title":"(Small) Technical Enhancements and Improvements for Rel-11","responsible_groups":["RP"],"release":"Rel-11","status":"PCG approved","wi_level":"Feature (1st level)","type":"Work Item","first_release":"Rel-11","last_release":"Rel-11","provenance_type":"parsed","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20261012.zip","association_sources":["crdb"],"association_status":"source_tracked"}],"change_requests":[{"portal_cr_id":null,"cr_number":"0001","revision":"1","category":"F","impacted_version":"11.0.0","target_release":"Rel-11","title":"EMM TR conformance to 3GPP drafting rules","wg_tdoc":"S4-130188","wg_status":"agreed","tsg_tdoc":"SP-130019","tsg_status":"approved","new_version":"11.1.0","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260715.zip","detail_synced_at":null},{"portal_cr_id":null,"cr_number":"0002","revision":null,"category":"D","impacted_version":"11.1.0","target_release":"Rel-11","title":"Correction to References","wg_tdoc":"S4-130981","wg_status":"agreed","tsg_tdoc":"SP-130568","tsg_status":"approved","new_version":"11.2.0","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260715.zip","detail_synced_at":null},{"portal_cr_id":null,"cr_number":"0001","revision":null,"category":"F","impacted_version":"..","target_release":"Rel-11","title":"EMM TR conformance to 3GPP drafting rules","wg_tdoc":"S4-130074","wg_status":"revised","tsg_tdoc":null,"tsg_status":null,"new_version":"..","source_url":"ftp://ftp.3gpp.org/Information/Databases/Change_Request/CRDB_20260715.zip","detail_synced_at":null}],"relationships":[],"relationship_release_evidence_summary":[],"relationship_release_evidence":[],"relationship_release_evidence_meta":{"total":0,"returned_count":0,"limit":100,"truncated":false,"href":"/api/specs/26.851/relationship-evidence"}}