{"topic":{"id":"isac","name":"Integrated Sensing and Communication","summary":"Emerging sensing functions spanning requirements, RAN and system architecture.","facets":["Requirements","Architecture","RAN","Sensing"],"provenance_type":"curated","review_state":"reviewed","source_url":"https://portal.3gpp.org/desktopmodules/WorkItem/WorkItemDetails.aspx?workitemId=950003","valid_from_release":"Rel-19","valid_to_release":null},"release":"Rel-5","release_state":{"applicable":false,"note":"reviewed mapping begins in Rel-19"},"specifications":[{"number":"22.261","type":"TS","title":"Service requirements for the 5G system","status":"Under change control","initial_release":"Rel-15","primary_group":"S1","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3107","dynareport_url":"https://www.3gpp.org/dynareport/22261.htm","classifications":[],"lineage_layer":{"id":"requirements","label":"Requirements / Stage 1 orientation","provenance_type":"inferred","review_state":"candidate","source_url":null,"note":"Orientation inferred from the 22-series; this is not an official 3GPP stage assignment."}},{"number":"23.501","type":"TS","title":"System architecture for the 5G System (5GS)","status":"Under change control","initial_release":"Rel-15","primary_group":"S2","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3144","dynareport_url":"https://www.3gpp.org/dynareport/23501.htm","classifications":[],"lineage_layer":{"id":"architecture","label":"System architecture & procedures / Stage 2 orientation","provenance_type":"inferred","review_state":"candidate","source_url":null,"note":"Orientation inferred from the 23-series; this is not an official 3GPP stage assignment."}},{"number":"38.300","type":"TS","title":"NR; NR and NG-RAN Overall description; Stage-2","status":"Under change control","initial_release":"Rel-15","primary_group":"R2","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3191","dynareport_url":"https://www.3gpp.org/dynareport/38300.htm","classifications":[],"lineage_layer":{"id":"ran_realization","label":"RAN / radio realization","provenance_type":"inferred","review_state":"candidate","source_url":null,"note":"Orientation inferred from the 38-series; this is not an official 3GPP stage assignment."}}],"layers":[{"id":"requirements","label":"Requirements / Stage 1 orientation","specifications":[{"number":"22.261","type":"TS","title":"Service requirements for the 5G system","status":"Under change control","initial_release":"Rel-15","primary_group":"S1","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3107","dynareport_url":"https://www.3gpp.org/dynareport/22261.htm","classifications":[],"lineage_layer":{"id":"requirements","label":"Requirements / Stage 1 orientation","provenance_type":"inferred","review_state":"candidate","source_url":null,"note":"Orientation inferred from the 22-series; this is not an official 3GPP stage assignment."}}]},{"id":"architecture","label":"System architecture & procedures / Stage 2 orientation","specifications":[{"number":"23.501","type":"TS","title":"System architecture for the 5G System (5GS)","status":"Under change control","initial_release":"Rel-15","primary_group":"S2","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3144","dynareport_url":"https://www.3gpp.org/dynareport/23501.htm","classifications":[],"lineage_layer":{"id":"architecture","label":"System architecture & procedures / Stage 2 orientation","provenance_type":"inferred","review_state":"candidate","source_url":null,"note":"Orientation inferred from the 23-series; this is not an official 3GPP stage assignment."}}]},{"id":"ran_realization","label":"RAN / radio realization","specifications":[{"number":"38.300","type":"TS","title":"NR; NR and NG-RAN Overall description; Stage-2","status":"Under change control","initial_release":"Rel-15","primary_group":"R2","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3191","dynareport_url":"https://www.3gpp.org/dynareport/38300.htm","classifications":[],"lineage_layer":{"id":"ran_realization","label":"RAN / radio realization","provenance_type":"inferred","review_state":"candidate","source_url":null,"note":"Orientation inferred from the 38-series; this is not an official 3GPP stage assignment."}}]}],"primary_work_item":{"database_id":242902,"uid":950003,"acronym":"FS_Sensing","effective_acronym":"FS_Sensing","title":"Study on Integrated Sensing and Communication","release":"Rel-19","status":"PCG approved","responsible_groups":["S1"],"completion_rate":100.0,"latest_remark":null,"work_plan_synced_at":"2026-10-07T21:46:43.074349+00:00","source_url":"https://portal.3gpp.org/desktopmodules/WorkItem/WorkItemDetails.aspx?workitemId=950003","work_plan_source_url":"https://www.3gpp.org/ftp/Information/WORK_PLAN/Work_plan_3gpp_2026_09_28.xlsx","specifications":["22.837"],"specification_associations":[{"number":"22.837","association_sources":["crdb","portal"],"association_status":"source_tracked"}],"lineage_scope":"topic_source_work_item"},"connected_work_items":[{"database_id":250733,"uid":23004,"acronym":"NETSHARE","effective_acronym":"NETSHARE","title":"UTRAN Sharing in Connected Mode","release":"Rel-5","status":"Awaiting approval","responsible_groups":["R3"],"completion_rate":100.0,"latest_remark":"-","work_plan_synced_at":"2026-10-07T21:46:48.059262+00:00","source_url":"https://portal.3gpp.org/desktopmodules/WorkItem/WorkItemDetails.aspx?workitemId=23004","work_plan_source_url":"https://www.3gpp.org/ftp/Information/WORK_PLAN/Work_plan_3gpp_2026_09_28.xlsx","specifications":["22.261"],"specification_associations":[{"number":"22.261","association_sources":["portal"],"association_status":"source_tracked"}],"lineage_scope":"connected_to_mapped_specification"}],"relationships":[],"change_requests":{"primary_work_item":[],"release_context":[]},"traceability_summary":{"mapped_specifications":3,"explicit_stage_classifications":0,"inferred_layer_orientations":3,"release_valid_relationships":0,"connected_work_items":1,"primary_work_item_crs":0,"release_context_crs":0},"limitations":["The reviewed topic-to-specification mapping is Atlas-curated and non-normative even when its source is an official 3GPP record.","When an explicit stage classification is unavailable, specification layers are inferred from the TS/TR series and are labelled inferred rather than presented as official 3GPP stage assignments.","Connected Work Items and release-context Change Requests share mapped specifications; only the topic source Work Item is treated as primary evidence for the reviewed topic mapping.","This is traceability evidence and navigation, not a clause-by-clause normative feature definition."]}