{"id":6291,"number":"25.843","type":"TR","title":"1.28 Mcps TDD UE Radio Access Capabilities","series":25,"status":"Under change control","initial_release":"Rel-4","primary_group":"RP","secondary_groups":["R2"],"portal_id":1276,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1276","dynareport_url":"https://www.3gpp.org/dynareport/25843.htm","publication_scope":null,"radio_technologies":[],"first_seen_at":"2026-09-16T11:04:52.956817+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=1276","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-08T00:03:55.879382+00:00","versions":[{"release":"Rel-4","version":"4.1.0","meeting":"RAN-#11","upload_date":"2001-03-27","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/25_series/25.843/25843-410.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":19111,"version_status":null},{"release":"Rel-4","version":"4.0.0","meeting":"RAN-#10","upload_date":"2000-12-20","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/25_series/25.843/25843-400.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null}],"release_presence":[{"release":"Rel-4","first_version_date":"2000-12-20","latest_version_date":"2001-03-27","first_version":"4.0.0","latest_version":"4.1.0","version_count":2}],"classifications":[],"work_items":[{"uid":1222,"acronym":"LCRTDD","effective_acronym":"LCRTDD","title":"Low Chip Rate TDD option","responsible_groups":["R1"],"release":"Rel-4","status":"Awaiting approval","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=1276","association_sources":[],"association_status":"historical_unverified"},{"uid":1227,"acronym":"LCRTDD-UErac","effective_acronym":"LCRTDD-UErac","title":"UE radio access capability","responsible_groups":["R2"],"release":"Rel-4","status":"Awaiting approval","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=1276","association_sources":[],"association_status":"historical_unverified"}],"change_requests":[{"portal_cr_id":null,"cr_number":"0001","revision":null,"category":"B","impacted_version":"4.0.0","target_release":"Rel-4","title":"Update of TR 25.843","wg_tdoc":"R2-010509","wg_status":"agreed","tsg_tdoc":"RP-010038","tsg_status":"approved","new_version":"4.1.0","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/25.843/relationship-evidence"}}