{"id":8442,"number":"37.864-11-22","type":"TR","title":"E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of LTE 1 Down Link (DL) / 1 Up Link (UL) and inter- / intra-band NR 2 Down Link (DL) / 2 Up Link (UL) bands (Frequency Range 1 (FR1) + Frequency Range 2 (FR2))","series":37,"status":"Under change control","initial_release":"Rel-15","primary_group":"R4","secondary_groups":[],"portal_id":3460,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3460","dynareport_url":"https://www.3gpp.org/dynareport/37864-11-22.htm","publication_scope":null,"radio_technologies":[],"first_seen_at":"2026-09-16T11:05:10.856565+00:00","updated_at":"2026-10-16T09:35:15.822667+00:00","raw_metadata":{"source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3460","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-08T09:55:47.963940+00:00","versions":[{"release":"Rel-15","version":"15.0.0","meeting":"RAN#80","upload_date":"2018-07-16","comment":"","official_file_url":"https://www.3gpp.org/ftp//Specs/archive/37_series/37.864-11-22/37864-11-22-f00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-15","version":"1.0.0","meeting":"RAN#80","upload_date":"2018-06-04","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.864-11-22/37864-11-22-100.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-15","version":"0.0.1","meeting":"RAN4#87","upload_date":"2018-05-14","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.864-11-22/37864-11-22-001.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"}],"release_presence":[{"release":"Rel-15","first_version_date":"2018-05-14","latest_version_date":"2018-07-16","first_version":"0.0.1","latest_version":"15.0.0","version_count":3}],"classifications":[],"work_items":[{"uid":750067,"acronym":"NR_newRAT","effective_acronym":"NR_newRAT","title":"New Radio Access Technology","responsible_groups":["R1"],"release":"Rel-15","status":"PCG approved","wi_level":"Feature (1st level)","type":"Work Item","first_release":null,"last_release":null,"provenance_type":"official","source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3460","association_sources":[],"association_status":"historical_unverified"},{"uid":750167,"acronym":"NR_newRAT-Core","effective_acronym":"NR_newRAT-Core","title":"Core part: New Radio Access Technology","responsible_groups":["R1"],"release":"Rel-15","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=3460","association_sources":[],"association_status":"historical_unverified"}],"change_requests":[],"relationships":[],"relationship_release_evidence_summary":[],"relationship_release_evidence":[],"relationship_release_evidence_meta":{"total":0,"returned_count":0,"limit":100,"truncated":false,"href":"/api/specs/37.864-11-22/relationship-evidence"}}