{"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\/fr\/blog\/news\/vypusk-otkrytogo-4g-steka-srslte-19-09","title":{"rendered":"Publication de la pile 4G open source srsLTE 19.09","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\">A eu lieu<\/a><\/noindex> version du projet <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/srsLTE\/\">srsLTE 19.09<\/a><\/noindex>, d\u00e9veloppant une pile ouverte pour le d\u00e9ploiement de composants de r\u00e9seaux cellulaires LTE\/4G sans \u00e9quipement sp\u00e9cial, utilisant uniquement des \u00e9metteurs-r\u00e9cepteurs programmables universels, dont la forme du signal et la modulation sont d\u00e9finies par logiciel (SDR, Software Defined Radio). Code du projet <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/srsLTE\/srsLTE\">est fourni<\/a><\/noindex> sont sous licence AGPLv3.<\/p>\n<p>SrsLTE <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=48923\">inclut<\/a><\/noindex> la mise en \u0153uvre de l'UE LTE (User Equipment, composants clients pour connecter les abonn\u00e9s au r\u00e9seau LTE), de la station de base LTE (eNodeB, E-UTRAN Node B), ainsi que des \u00e9l\u00e9ments du r\u00e9seau central LTE (MME \u2014 Mobility Management Entity pour l'interaction avec les stations de base, HSS \u2014 Home Subscriber Server pour le stockage de la base de donn\u00e9es des abonn\u00e9s et des informations sur les services associ\u00e9s aux abonn\u00e9s, SGW \u2014 Serving Gateway pour le traitement et le routage des paquets pour les stations de base, PGW \u2014 Packet Data Network Gateway pour connecter l'abonn\u00e9 aux r\u00e9seaux externes. <\/p>\n<p>Dans la nouvelle version :<\/p>\n<ul>\n<li class=\"l\"> Un support initial de la technologie d'acc\u00e8s radio a \u00e9t\u00e9 impl\u00e9ment\u00e9 pour les niveaux LTE MAC, RLC et PDCP. <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/5G_NR\">NR<\/a><\/noindex> (New Radio), con\u00e7u pour les r\u00e9seaux mobiles 5G ;\n<li class=\"l\"> Dans la mise en \u0153uvre de la norme <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/NB_IoT\">NB-IoT<\/a><\/noindex> (Narrowband Internet of Things), utilis\u00e9e pour connecter des dispositifs IoT autonomes au r\u00e9seau mobile, du code pour la synchronisation a \u00e9t\u00e9 ajout\u00e9 ;\n<li class=\"l\"> Ajout de la prise en charge des algorithmes cryptographiques  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.semanticscholar.org\/paper\/The-New-LTE-Cryptographic-Algorithms-EEA3-and-EIA3-Orhanou-Elhajji\/601127d28c86cc45377ad3902a35ff1de7016e6c\">EIA3 et EEA3<\/a><\/noindex>, bas\u00e9s sur le chiffrement par flot ZUC ;\n<li class=\"l\"> Dans srsENB (la mise en \u0153uvre de la station de base), la technologie <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) a \u00e9t\u00e9 ajout\u00e9e, permettant de revenir au 3G lors d'un appel vocal si le r\u00e9seau LTE ne prend en charge que le mode de transmission de donn\u00e9es ;\n<li class=\"l\"> Ajout d'une couche pour ex\u00e9cuter des tests TTCN-3 afin de v\u00e9rifier la conformit\u00e9 des composants utilis\u00e9s pour connecter un abonn\u00e9 au r\u00e9seau LTE ;\n<li class=\"l\"> Un nouveau mod\u00e8le de simulation de communication dans les trains \u00e0 grande vitesse a \u00e9t\u00e9 ajout\u00e9 au simulateur de canaux ;\n<li class=\"l\"> Les couches RRC et NAS ont \u00e9t\u00e9 d\u00e9barrass\u00e9es des modes de fonctionnement bloquants.\n<\/ul>\n<p>Fonctionnalit\u00e9s principales :\n<\/p>\n<ul>\n<li class=\"l\"> Le syst\u00e8me peut fonctionner avec tous les \u00e9metteurs-r\u00e9cepteurs programmables pris en charge par les pilotes Ettus UHD (Universal Hardware Driver) et bladeRF, capables de fonctionner avec une largeur de bande de 30,72 MHz. Le fonctionnement de srsLTE a \u00e9t\u00e9 test\u00e9 avec des cartes USRP B210, USRP B205mini, USRP X300, limeSDR et bladeRF;\n<\/li>\n<li class=\"l\"> D\u00e9codeur optimis\u00e9 \u00e0 haute vitesse utilisant les instructions Intel SSE4.1\/AVX2 pour atteindre une performance de plus de 100 Mbit\/s sur du mat\u00e9riel standard. Impl\u00e9mentation standard du d\u00e9codeur en langage C, garantissant une performance de 25 Mbit\/s.\n<\/li>\n<li class=\"l\"> Compatibilit\u00e9 totale avec la version 8 de la norme LTE et prise en charge partielle de certaines fonctionnalit\u00e9s de la version 9.\n<\/li>\n<li class=\"l\"> Configuration disponible pour le fonctionnement en mode de s\u00e9paration de fr\u00e9quence des canaux (FDD).\n<\/li>\n<li class=\"l\"> Bandes de fr\u00e9quence test\u00e9es : 1.4, 3, 5, 10, 15 et 20 MHz.\n<\/li>\n<li class=\"l\"> Prise en charge des modes de transmission 1 (antenne unique), 2 (diversit\u00e9 de transmission), 3 (CCD) et 4 (multiplexage spatial en boucle ferm\u00e9e).\n<\/li>\n<li class=\"l\"> \u00c9galiseur supportant le codage fr\u00e9quentiel ZF et MMSE.\n<\/li>\n<li class=\"l\"> Prise en charge de la cr\u00e9ation de services pour la livraison de contenu multim\u00e9dia en modes broadcast et multicast ;\n<\/li>\n<li class=\"l\"> Possibilit\u00e9 de tenir des logs d\u00e9taill\u00e9s avec attache aux niveaux et dumps de d\u00e9bogage.\n<\/li>\n<li class=\"l\"> Syst\u00e8me de capture de paquets au niveau MAC, compatible avec l'analyseur r\u00e9seau Wireshark.\n<\/li>\n<li class=\"l\"> Disponibilit\u00e9 de m\u00e9triques avec des donn\u00e9es de tra\u00e7age en mode ligne de commande.\n<\/li>\n<li class=\"l\"> Fichiers de configuration d\u00e9taill\u00e9s.\n<\/li>\n<li class=\"l\"> Impl\u00e9mentation des niveaux LTE MAC, RLC, PDCP, RRC, NAS, S1AP et GW.\n<\/li>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Source : <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 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" 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