{"release":"Rel-20","nodes":[{"number":"31.50U","type":"TS","title":"Essential requirements for UMTS Mobile Stations (ME) operating within frequency bands 1885-1980, 2010-2025 and 2110-2200 MHz","series":31,"status":"Withdrawn before change control","initial_release":"UMTS","primary_group":null,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1827"}],"edges":[]}