{"id":8670,"number":"38.840","type":"TR","title":"Study on User Equipment (UE) power saving in NR","series":38,"status":"Under change control","initial_release":"Rel-16","primary_group":"R1","secondary_groups":["R2"],"portal_id":3502,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3502","dynareport_url":"https://www.3gpp.org/dynareport/38840.htm","publication_scope":null,"radio_technologies":[],"first_seen_at":"2026-09-16T11:05:14.377089+00:00","updated_at":"2026-10-16T09:35:23.765577+00:00","raw_metadata":{"source_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3502","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-08T02:40:58.839650+00:00","versions":[{"release":"Rel-16","version":"16.0.0","meeting":"RAN#84","upload_date":"2019-06-24","comment":"","official_file_url":"https://www.3gpp.org/ftp//Specs/archive/38_series/38.840/38840-g00.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-16","version":"2.0.0","meeting":"RAN#84","upload_date":"2019-05-29","comment":"For approval to RAN#84 (R1-19...","official_file_url":"https://www.3gpp.org/ftp//Specs/archive/38_series/38.840/38840-200.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-16","version":"1.0.0","meeting":"RAN#83","upload_date":"2019-03-14","comment":"For information to RAN#83 (R1...","official_file_url":"https://www.3gpp.org/ftp//Specs/archive/38_series/38.840/38840-100.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-16","version":"0.1.1","meeting":"RAN1#96","upload_date":"2019-03-14","comment":"Endorsed in R1-1902023","official_file_url":"https://www.3gpp.org/ftp//Specs/archive/38_series/38.840/38840-011.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-16","version":"0.0.0","meeting":"RAN1#94-Bis","upload_date":"2018-12-05","comment":"Endorsed in R1-1811896","official_file_url":"https://www.3gpp.org/ftp//Specs/archive/38_series/38.840/38840-000.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-16","version":"0.1.0","meeting":"RAN1#95","upload_date":"2018-11-29","comment":"Endorsed in R1-1814387","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/38_series/38.840/38840-010.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"}],"release_presence":[{"release":"Rel-16","first_version_date":"2018-11-29","latest_version_date":"2019-06-24","first_version":"0.0.0","latest_version":"16.0.0","version_count":6}],"classifications":[],"work_items":[{"uid":800094,"acronym":"FS_NR_UE_pow_sav","effective_acronym":"FS_NR_UE_pow_sav","title":"Study on UE power saving in NR","responsible_groups":["R1"],"release":"Rel-16","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=3502","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/38.840/relationship-evidence"}}