{"id":9106,"number":"36.818","type":"TR","title":"Expanding 1900MHz","series":36,"status":"Withdrawn before change control","initial_release":"Rel-10","primary_group":"R4","secondary_groups":["R2"],"portal_id":2497,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=2497","dynareport_url":"https://www.3gpp.org/dynareport/36818.htm","publication_scope":null,"radio_technologies":[],"first_seen_at":"2026-09-16T11:13:24.239494+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=2497"},"detail_synced_at":"2026-10-08T02:17:05.351261+00:00","versions":[],"release_presence":[],"classifications":[],"work_items":[{"uid":480024,"acronym":"E1900","effective_acronym":"E1900","title":"Expanded 1900 MHz Band for UTRA and LTE","responsible_groups":["R2"],"release":"Rel-10","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=2497","association_sources":[],"association_status":"historical_unverified"},{"uid":480124,"acronym":"E1900-Core","effective_acronym":"E1900-Core","title":"Core part: Expanded 1900 MHz Band for UTRA and LTE","responsible_groups":["R2"],"release":"Rel-10","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=2497","association_sources":[],"association_status":"historical_unverified"},{"uid":480224,"acronym":"E1900-Perf","effective_acronym":"E1900-Perf","title":"Perf. part: Expanded 1900 MHz Band for UTRA and LTE","responsible_groups":["R2"],"release":"Rel-10","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=2497","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/36.818/relationship-evidence"}}