{"topic":{"id":"slicing","name":"Network Slicing","summary":"Slice selection, architecture, policy and UE/core signalling.","facets":["Requirements","Architecture","Procedure","Policy","NAS"],"provenance_type":"curated","review_state":"reviewed","source_url":"https://portal.3gpp.org/desktopmodules/WorkItem/WorkItemDetails.aspx?workitemId=760066","valid_from_release":"Rel-15","valid_to_release":null},"release":"Rel-6","release_state":{"applicable":false,"note":"reviewed mapping begins in Rel-15"},"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":"23.502","type":"TS","title":"Procedures 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=3145","dynareport_url":"https://www.3gpp.org/dynareport/23502.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":"23.503","type":"TS","title":"Policy and charging control framework for the 5G System (5GS); Stage 2","status":"Under change control","initial_release":"Rel-15","primary_group":"S2","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3334","dynareport_url":"https://www.3gpp.org/dynareport/23503.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":"24.501","type":"TS","title":"Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3","status":"Under change control","initial_release":"Rel-15","primary_group":"C1","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3370","dynareport_url":"https://www.3gpp.org/dynareport/24501.htm","classifications":[],"lineage_layer":{"id":"ue_protocol","label":"UE protocol realization","provenance_type":"inferred","review_state":"candidate","source_url":null,"note":"Orientation inferred from the 24-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."}},{"number":"23.502","type":"TS","title":"Procedures 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=3145","dynareport_url":"https://www.3gpp.org/dynareport/23502.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":"23.503","type":"TS","title":"Policy and charging control framework for the 5G System (5GS); Stage 2","status":"Under change control","initial_release":"Rel-15","primary_group":"S2","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3334","dynareport_url":"https://www.3gpp.org/dynareport/23503.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":"ue_protocol","label":"UE protocol realization","specifications":[{"number":"24.501","type":"TS","title":"Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3","status":"Under change control","initial_release":"Rel-15","primary_group":"C1","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3370","dynareport_url":"https://www.3gpp.org/dynareport/24501.htm","classifications":[],"lineage_layer":{"id":"ue_protocol","label":"UE protocol realization","provenance_type":"inferred","review_state":"candidate","source_url":null,"note":"Orientation inferred from the 24-series; this is not an official 3GPP stage assignment."}}]}],"primary_work_item":{"database_id":245692,"uid":760066,"acronym":"NETSLICE","effective_acronym":"NETSLICE","title":"Management and orchestration of 5G networks and network slicing","release":"Rel-15","status":"PCG approved","responsible_groups":["S5"],"completion_rate":100.0,"latest_remark":null,"work_plan_synced_at":"2026-10-07T21:46:44.760739+00:00","source_url":"https://portal.3gpp.org/desktopmodules/WorkItem/WorkItemDetails.aspx?workitemId=760066","work_plan_source_url":"https://www.3gpp.org/ftp/Information/WORK_PLAN/Work_plan_3gpp_2026_09_28.xlsx","specifications":["28.530","28.531","28.532","28.533","32.159","33.811"],"specification_associations":[{"number":"28.530","association_sources":[],"association_status":"historical_unverified"},{"number":"28.531","association_sources":["portal"],"association_status":"source_tracked"},{"number":"28.532","association_sources":["portal-spec"],"association_status":"source_tracked"},{"number":"28.533","association_sources":["portal-spec"],"association_status":"source_tracked"},{"number":"32.159","association_sources":[],"association_status":"historical_unverified"},{"number":"33.811","association_sources":[],"association_status":"historical_unverified"}],"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":[{"id":1,"source_spec":"23.502","target_spec":"23.501","edge_type":"stage_realization_of","provenance_type":"curated","confidence":1.0,"review_state":"reviewed","source_url":"atlas://curated/dependency-edges","valid_from_release":null,"valid_to_release":null},{"id":10,"source_spec":"23.503","target_spec":"23.501","edge_type":"policy_for","provenance_type":"curated","confidence":1.0,"review_state":"reviewed","source_url":"atlas://curated/dependency-edges","valid_from_release":null,"valid_to_release":null},{"id":2,"source_spec":"24.501","target_spec":"23.502","edge_type":"procedure_component","provenance_type":"curated","confidence":1.0,"review_state":"reviewed","source_url":"atlas://curated/dependency-edges","valid_from_release":null,"valid_to_release":null}],"change_requests":{"primary_work_item":[],"release_context":[]},"traceability_summary":{"mapped_specifications":5,"explicit_stage_classifications":0,"inferred_layer_orientations":5,"release_valid_relationships":3,"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."]}