{"id":39175,"date":"2019-10-31T22:28:16","date_gmt":"2019-10-31T19:28:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vypusk-otkrytogo-4g-steka-srslte-19-09\/"},"modified":"2019-10-31T22:28:16","modified_gmt":"2019-10-31T19:28:16","slug":"vypusk-otkrytogo-4g-steka-srslte-19-09","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/vypusk-otkrytogo-4g-steka-srslte-19-09","title":{"rendered":"Utgivningen av Firefox 70 \u00e4r tillg\u00e4nglig. Huvudsakliga f\u00f6r\u00e4ndringar: En ny har presenterats.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/srsLTE\/srsLTE\/releases\/tag\/release_19_09\">H\u00e4ndelse genomf\u00f6rd<\/a><\/noindex> projektets release <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/srsLTE\/\">srsLTE 19.09<\/a><\/noindex>, som utvecklar en \u00f6ppen stack f\u00f6r distribution av komponenter i mobiln\u00e4t LTE\/4G utan behov av specialutrustning, endast genom att anv\u00e4nda universella programerbara s\u00e4ndare och mottagare, vars signalform och modulering definieras programvarum\u00e4ssigt (SDR, Software Defined Radio). Projektkod <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/srsLTE\/srsLTE\">levereras<\/a><\/noindex> under licens AGPLv3.<\/p>\n<p>SrsLTE <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=48923\">inkluderar<\/a><\/noindex> implementeringen av LTE UE (User Equipment, kundkomponenter f\u00f6r att ansluta abonnenten till LTE-n\u00e4tet), LTE-basenod (eNodeB, E-UTRAN Node B), samt element i LTE-k\u00e4rn\u00e4tet (MME \u2014 Mobility Management Entity f\u00f6r interaktion med basstationer, HSS \u2014 Home Subscriber Server f\u00f6r lagring av abonnentdata och information om tj\u00e4nster kopplade till abonnenter, SGW \u2014 Serving Gateway f\u00f6r bearbetning och dirigering av paket f\u00f6r basstationer, PGW \u2014 Packet Data Network Gateway f\u00f6r att ansluta abonnenten till externa n\u00e4tverk. <\/p>\n<p>I den nya versionen:<\/p>\n<ul>\n<li class=\"l\"> F\u00f6r LTE-niv\u00e5erna MAC, RLC och PDCP har grundl\u00e4ggande st\u00f6d implementerats f\u00f6r teknologi f\u00f6r radiotillg\u00e5ng <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/5G_NR\">NR<\/a><\/noindex> (New Radio), utvecklad f\u00f6r mobila n\u00e4t 5G;\n<li class=\"l\"> I implementeringen av standarden <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/NB_IoT\">NB-IoT<\/a><\/noindex> (Narrowband Internet of Things), anv\u00e4nds f\u00f6r att ansluta autonoma IoT-enheter till mobiln\u00e4t, har kod lagts till f\u00f6r synkronisering;\n<li class=\"l\"> St\u00f6d f\u00f6r kryptografiska algoritmer  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.semanticscholar.org\/paper\/The-New-LTE-Cryptographic-Algorithms-EEA3-and-EIA3-Orhanou-Elhajji\/601127d28c86cc45377ad3902a35ff1de7016e6c\">EIA3 och EEA3<\/a><\/noindex>, baserade p\u00e5 str\u00f6mmande kryptering ZUC;\n<li class=\"l\"> I srsENB (implementation av basstation) har st\u00f6d f\u00f6r tekniken <noindex><a rel=\"nofollow\" href=\"https:\/\/medium.com\/long-term-evolution\/lte-to-3g-circuit-switched-fallback-csfb-74dc5a322d53\">CSFB<\/a><\/noindex> (Circuit Switched FallBack) lagts till, som m\u00f6jligg\u00f6r att vid ett r\u00f6stanrop backa till 3G om LTE-n\u00e4tet endast st\u00f6djer datatrafikl\u00e4ge;\n<li class=\"l\"> Ett lager har lagts till f\u00f6r att k\u00f6ra tester TTCN-3 f\u00f6r att verifiera att komponenterna som anv\u00e4nds f\u00f6r att ansluta abonnenten till LTE-n\u00e4tet uppfyller standarden;\n<li class=\"l\"> En ny kommunikationssimuleringsmodell har lagts till i kanal simuleringen f\u00f6r h\u00f6ghastighetst\u00e5g;\n<li class=\"l\"> RRC- och NAS-lager har befriats fr\u00e5n blockerande arbetss\u00e4tt.\n<\/ul>\n<p>Key features:\n<\/p>\n<ul>\n<li class=\"l\"> Systemet kan arbeta med alla programerbara s\u00e4ndare och mottagare som st\u00f6djer Ettus UHD-drivrutiner (Universal Hardware Driver) och bladeRF och som klarar av en bandbredd p\u00e5 30,72 MHz. srsLTE:s funktionalitet har testats med USRP B210, USRP B205mini, USRP X300, limeSDR och bladeRF-kort;\n<\/li>\n<li class=\"l\"> H\u00f6gpresterande optimerad dekoder, som anv\u00e4nder Intel SSE4.1\/AVX2-instruktioner f\u00f6r att uppn\u00e5 mer \u00e4n 100 Mbit\/s p\u00e5 vanlig h\u00e5rdvara. Standardimplementationen av dekodern i C-spr\u00e5k ger en prestandaniv\u00e5 p\u00e5 25 Mbit\/s;\n<\/li>\n<li class=\"l\"> Full kompatibilitet med LTE standardens version 8 och delvis st\u00f6d f\u00f6r vissa funktioner fr\u00e5n version 9;\n<\/li>\n<li class=\"l\"> Tillg\u00e5ng till konfiguration f\u00f6r drift i l\u00e4ge f\u00f6r frekvensdelning (FDD);\n<\/li>\n<li class=\"l\"> Testade bandbreddsfrekvenser: 1.4, 3, 5, 10, 15 och 20 MHz;\n<\/li>\n<li class=\"l\"> St\u00f6d f\u00f6r \u00f6verf\u00f6ringsl\u00e4gen 1 (singelantenn), 2 (s\u00e4ndardiversitet), 3 (CCD) och 4 (st\u00e4ngd loop rymdmultiplexering);\n<\/li>\n<li class=\"l\"> Equalizer med st\u00f6d f\u00f6r frekvenskodning ZF och MMSE;\n<\/li>\n<li class=\"l\"> St\u00f6d f\u00f6r att skapa tj\u00e4nster f\u00f6r leverans av multimediainneh\u00e5ll i l\u00e4gena broadcast och multicast;\n<\/li>\n<li class=\"l\"> M\u00f6jlighet att f\u00f6ra detaljerade loggar kopplade till niv\u00e5er och med fels\u00f6kningsdumpning;\n<\/li>\n<li class=\"l\"> Paketf\u00e5ngstsystem p\u00e5 MAC-niv\u00e5, kompatibelt med n\u00e4tverksanalysatorn Wireshark;\n<\/li>\n<li class=\"l\"> Tillg\u00e5ng till m\u00e4tv\u00e4rden med sp\u00e5rningsdata i kommandoradsformat;\n<\/li>\n<li class=\"l\"> Detaljerade konfigurationsfiler;\n<\/li>\n<li class=\"l\"> Implementering av niv\u00e5er LTE MAC, RLC, PDCP, RRC, NAS, S1AP och GW.\n<\/li>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>K\u00e4lla: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51720\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 srsLTE 19.09, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0439 \u0441\u0442\u0435\u043a \u0434\u043b\u044f \u0440\u0430\u0437\u0432\u0451\u0440\u0442\u044b\u0432\u0430\u043d\u0438\u044f \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 \u0441\u043e\u0442\u043e\u0432\u044b\u0445 \u0441\u0435\u0442\u0435\u0439 LTE\/4G \u0431\u0435\u0437 \u043d\u0430\u043b\u0438\u0447\u0438\u044f \u0441\u043f\u0435\u0446\u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0430\u043b\u044c\u043d\u044b\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u0443\u0435\u043c\u044b\u0435 \u043f\u0440\u0438\u0435\u043c\u043e\u043f\u0435\u0440\u0435\u0434\u0430\u0442\u0447\u0438\u043a\u0438, \u0444\u043e\u0440\u043c\u0430 \u0441\u0438\u0433\u043d\u0430\u043b\u0430 \u0438 \u043c\u043e\u0434\u0443\u043b\u044f\u0446\u0438\u044f \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0437\u0430\u0434\u0430\u0451\u0442\u0441\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e (SDR, Software Defined Radio). \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 AGPLv3. SrsLTE \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e LTE UE (User Equipment, \u043a\u043b\u0438\u0435\u043d\u0442\u0441\u043a\u0438\u0435 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u044b \u0434\u043b\u044f \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0430\u0431\u043e\u043d\u0435\u043d\u0442\u0430 \u043a \u0441\u0435\u0442\u0438 LTE), \u0431\u0430\u0437\u043e\u0432\u043e\u0439 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-39175","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" 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