{"id":6276,"number":"25.827","type":"TR","title":"1.28 Mcps TDD ehanced uplink; Physical layer aspects","series":25,"status":"Under change control","initial_release":"Rel-7","primary_group":"RP","secondary_groups":["R1"],"portal_id":1260,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1260","dynareport_url":"https://www.3gpp.org/dynareport/25827.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=1260","bibliography_source":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv"},"detail_synced_at":"2026-10-08T00:02:58.579325+00:00","versions":[{"release":"Rel-7","version":"7.1.0","meeting":"RAN#36","upload_date":"2007-06-21","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/25_series/25.827/25827-710.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":21163,"version_status":null},{"release":"Rel-7","version":"7.0.0","meeting":"RAN#35","upload_date":"2007-03-22","comment":"","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/25_series/25.827/25827-700.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":null},{"release":"Rel-7","version":"2.0.0","meeting":"RAN#35","upload_date":"2007-03-19","comment":"RP-070134","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/25_series/25.827/25827-200.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"1.0.0","meeting":"RAN#34","upload_date":"2006-11-28","comment":"RP-060771 ex R1-47","official_file_url":"https://www.3gpp.org/ftp/Specs/archive/25_series/25.827/25827-100.zip","source_url":"ftp://ftp.3gpp.org/Information/Databases/3GPPBibliography.csv","portal_version_id":null,"version_status":"pre-approval"},{"release":"Rel-7","version":"0.3.1","meeting":"-","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":"Rel-7","version":"0.3.0","meeting":"-","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":"Rel-7","version":"0.2.1","meeting":"-","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":"Rel-7","version":"0.2.0","meeting":"-","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":"Rel-7","version":"0.1.1","meeting":"-","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":"Rel-7","version":"0.1.0","meeting":"-","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":"Rel-7","version":"0.0.1","meeting":"-","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":"Rel-7","version":"0.0.0","meeting":"-","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-7","first_version_date":"2006-11-28","latest_version_date":"2007-06-21","first_version":"0.0.0","latest_version":"7.1.0","version_count":12}],"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=1260","association_sources":[],"association_status":"historical_unverified"},{"uid":35016,"acronym":"CH","effective_acronym":"CH","title":"Rel-6 Charging Management","responsible_groups":["S2","S5"],"release":"Rel-6","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=1260","association_sources":[],"association_status":"historical_unverified"},{"uid":20003,"acronym":"EDCH","effective_acronym":"EDCH","title":"FDD Enhanced Uplink","responsible_groups":["R1","R2","R3","R4","R5"],"release":"Rel-6","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=1260","association_sources":[],"association_status":"historical_unverified"},{"uid":20005,"acronym":"EDCH-Phys","effective_acronym":"EDCH-Phys","title":"FDD Enhanced Uplink - Physical Layer","responsible_groups":["R1"],"release":"Rel-6","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=1260","association_sources":[],"association_status":"historical_unverified"},{"uid":20055,"acronym":"LCRTDD-EDCH","effective_acronym":"LCRTDD-EDCH","title":"1.28 Mcps TDD Enhanced Uplink","responsible_groups":["R1","R2","R3","R4","R5"],"release":"Rel-7","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=1260","association_sources":[],"association_status":"historical_unverified"},{"uid":20056,"acronym":"LCRTDD-EDCH-Phys","effective_acronym":"LCRTDD-EDCH-Phys","title":"1.28 Mcps TDD Enhanced Uplink: Physical Layer","responsible_groups":["R1"],"release":"Rel-7","status":"Awaiting approval","wi_level":"Building Block (2nd level)","type":"Work Item","first_release":"Rel-7","last_release":"Rel-7","provenance_type":"official","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":null,"category":"F","impacted_version":"7.0.0","target_release":"Rel-7","title":"Corrections to TR25.827 for LTDD EUL","wg_tdoc":"R1-072260","wg_status":"agreed","tsg_tdoc":"RP-070383","tsg_status":"approved","new_version":"7.1.0","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/25.827/relationship-evidence"}}