{"id":8388,"number":"37.717-11-21","type":"TR","title":"Rel-17 Dual Connectivity (DC) of x bands (x=1,2,3,4) LTE inter-band CA (xDL/1UL) and 2 bands NR inter-band CA (2DL/1UL)","series":37,"status":"Under change control","initial_release":"Rel-17","primary_group":"R4","secondary_groups":[],"portal_id":3788,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3788","dynareport_url":"https://www.3gpp.org/dynareport/37717-11-21.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=3788","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-08T09:54:34.291935+00:00","versions":[{"release":"Rel-17","version":"17.0.0","meeting":"RAN#96","upload_date":"2022-06-24","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.717-11-21/37717-11-21-h00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-17","version":"0.9.0","meeting":"RAN4#103-e","upload_date":"2022-06-06","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.717-11-21/37717-11-21-090.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-17","version":"1.1.0","meeting":"RAN#96","upload_date":"2022-05-30","comment":"v1.0.0 was misused in RAN4 (s...","official_file_url":"https://ftp.3gpp.org//Specs/archive/37_series/37.717-11-21/37717-11-21-110.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-17","version":"0.8.0","meeting":"RAN4#102-e","upload_date":"2022-03-15","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.717-11-21/37717-11-21-080.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-17","version":"0.7.0","meeting":"RAN4#101-e","upload_date":"2021-11-22","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.717-11-21/37717-11-21-070.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-17","version":"0.6.0","meeting":"RAN4#100-e","upload_date":"2021-09-09","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.717-11-21/37717-11-21-060.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-17","version":"0.5.0","meeting":"RAN4#99-e","upload_date":"2021-06-11","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.717-11-21/37717-11-21-050.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-17","version":"0.4.0","meeting":"RAN4#98-bis-e","upload_date":"2021-04-29","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.717-11-21/37717-11-21-040.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-17","version":"0.3.0","meeting":"RAN4#98-e","upload_date":"2021-04-13","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.717-11-21/37717-11-21-030.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-17","version":"0.1.0","meeting":"RAN4#96-e","upload_date":"2020-09-07","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.717-11-21/37717-11-21-010.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-17","version":"0.0.1","meeting":"RAN4#96-e","upload_date":"2020-08-07","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/37_series/37.717-11-21/37717-11-21-001.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-17","version":"0.2.0","meeting":"RAN4#97-e","upload_date":null,"comment":"","official_file_url":null,"source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"}],"release_presence":[{"release":"Rel-17","first_version_date":"2020-08-07","latest_version_date":"2022-06-24","first_version":"0.0.1","latest_version":"17.0.0","version_count":12}],"classifications":[],"work_items":[{"uid":881102,"acronym":"DC_R17_xBLTE_2BNR_yDL2UL-Core","effective_acronym":"DC_R17_xBLTE_2BNR_yDL2UL-Core","title":"Core part: DC_R17_xBLTE_2BNR_yDL2UL","responsible_groups":["R4"],"release":"Rel-17","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=3788","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/37.717-11-21/relationship-evidence"}}