{"id":112015,"date":"2023-12-06T03:10:29","date_gmt":"2023-12-06T01:10:29","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vyshel-srsran-4g-23-11-opensource-realizacziya-steka-4g-lte"},"modified":"2023-12-06T03:10:29","modified_gmt":"2023-12-06T01:10:29","slug":"vyshel-srsran-4g-23-11-opensource-realizacziya-steka-4g-lte","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/vyshel-srsran-4g-23-11-opensource-realizacziya-steka-4g-lte","title":{"rendered":"srsRAN 4G 23.11 a fost lansat \u2014 O implementare OpenSource a stivei 4G\/LTE","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Proiectul software radio systems Radio Access Network sau srsRAN vizeaz\u0103 implementarea stivelor 4G\/LTE \u0219i 5G. Anterior, proiectul era cunoscut sub numele de srsLTE.<\/p>\n<p>Modific\u0103ri principale comparativ cu versiunea anterioar\u0103: <\/p>\n<ul>\n<li> Erorile srsUE legate de l\u0103\u021bimile de band\u0103 de 5, 10, 15 \u0219i 20 MHz au fost corectate. <\/li>\n<li> Un nou algoritm pentru calcularea frecven\u021bei a fost ad\u0103ugat. <\/li>\n<li> cmake a fost actualizat. <\/li>\n<li> Unele corecturi de erori care \u00eembun\u0103t\u0103\u021besc stabilitatea \u0219i performan\u021ba.<\/li>\n<\/ul>\n<p>Modulele principale srsRAN 4G:<\/p>\n<ul>\n<li> srsENB (software radio systems eNodeB) \u2014 o implementare a re\u021belei terestre de acces radio Evolved UMTS (Universal Mobile Telecommunications System) sau E-UTRAN NodeB sau simplu eNodeB (eNB). Practic, aceasta este o implementare software a sta\u021biei de baz\u0103 4G\/LTE; <\/li>\n<li> srsUE (software radio systems User Equipment) \u2014 o implementare a modemului 4G\/LTE, care se poate conecta la sta\u021bia de baz\u0103 eNB; <noindex><\/li>\n<li> srsEPC \u2014 o implementare a nucleului de re\u021bea, care include MME (Mobility Management Entity), HSS (Home Subscriber Server), SGW (Serving Gateway) \u0219i PGW (PDN (Packet Data Network) Gateway).<\/li>\n<\/ul>\n<p><noindex><\/p>\n<p><a rel=\"nofollow\" href=\"https:\/\/docs.srsran.com\/projects\/4g\/en\/latest\/feature_list.html\">Func\u021bionalit\u0103\u021bi principale:<\/a><\/p>\n<p><\/noindex><\/p>\n<ul>\n<li> implementarea stivei at\u00e2t ca sta\u021bie de baz\u0103, c\u00e2t \u0219i ca modem software;<\/noindex> <\/li>\n<li> posibilitatea de a lucra at\u00e2t cu SIM-uri software, c\u00e2t \u0219i hardware (prin PC\/SC) pentru srsUE; <\/li>\n<li> suport pentru l\u0103\u021bimi de band\u0103 de 1.4, 3, 5, 10, 15 \u0219i 20 MHz; <\/li>\n<li> suport pentru AES; <\/li>\n<li> optimizare pentru SSE4.1\/AVX2; <\/li>\n<li> suport pentru LTE Release 10; <\/li>\n<li> suport pentru Intra-ENB \u0219i Inter-ENB pentru eNodeB.<\/li>\n<\/ul>\n<p><noindex><\/p>\n<p>Este de remarcat faptul c\u0103 srsRAN dezvolt\u0103 \u0219i <a rel=\"nofollow\" href=\"https:\/\/github.com\/srsran\/srsRAN_Project\">suportul O-RAN 5G<\/a>. <\/p>\n<p><\/noindex><\/p>\n<p>Limit\u0103ri principale<\/p>\n<ul>\n<li> Nu exist\u0103 suport pentru VoLTE. (Func\u021bionarea VoLTE poate fi realizat\u0103 cu ajutorul unui IMS extern, cum ar fi Kamailio, care se afl\u0103 la adresa kamailio.org, printr-un articol <a rel=\"nofollow\" href=\"https:\/\/open5gs.org\/open5gs\/docs\/tutorial\/02-VoLTE-setup\">https:\/\/open5gs.org\/open5gs\/docs\/tutorial\/02-VoLTE-setup<\/a> \u0219i iat\u0103 cum func\u021bioneaz\u0103 VoLTE <a rel=\"nofollow\" href=\"https:\/\/www.youtube.com\/watch?v=gBX-ZX_d1uY\">https:\/\/www.youtube.com\/watch?v=gBX-ZX_d1uY<\/a>)  <\/li>\n<li> Pentru 5G, este implementat doar suportul gNodeB (next generation NodeB) at\u00e2t ca CU, c\u00e2t \u0219i ca DU\/RU \u2014 adic\u0103 sta\u021bia de baz\u0103, iar modemul software nu a fost implementat. <\/li>\n<li> Este suportat doar FR1. <\/li>\n<li> Nu exist\u0103 suport pentru 2G \u0219i 3G. <\/li>\n<\/ul>\n<p>Spre deosebire de Osmocom CNI, srsRAN vizeaz\u0103 crearea unei stive 4G \u0219i 5G pentru transmiterea traficului IP. \u00cen acela\u0219i timp, Osmocom CNI vizeaz\u0103 implementarea 2G \u0219i 3G, care sunt orientate spre transmiterea SMS-urilor, USSD \u0219i a vocii. De aceea, Osmocom CNI poate transmite trafic vocal nu doar pe IP-PBX (IP-ATC) de tip Asterisk, ci, de exemplu, pe E1 prin <a rel=\"nofollow\" href=\"https:\/\/sysmocom.de\/products\/lab\/icE1usb\/index.html\">icE1usb<\/a>. <\/p>\n<p>Sursa: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/opensource\/17443128\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u043e\u0435\u043a\u0442 software radio systems Radio Access Network \u0438\u043b\u0438 srsRAN \u043d\u0430\u0446\u0435\u043b\u0435\u043d \u043d\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0441\u0442\u0435\u043a\u043e\u0432 4G\/LTE \u0438 5G. \u0420\u0430\u043d\u0435\u0435 \u043f\u0440\u043e\u0435\u043a\u0442 \u0438\u0437\u0432\u0435\u0441\u0442\u0435\u043d \u0431\u044b\u043b \u043a\u0430\u043a srsLTE. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u043f\u0440\u043e\u0448\u043b\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0435\u0439: \u0418\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u044b \u043e\u0448\u0438\u0431\u043a\u0438 srsUE \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u0448\u0438\u0440\u0438\u043d\u043e\u0439 \u0432 5, 10, 15 \u0438 20 \u041c\u0413\u0446. \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d \u043d\u043e\u0432\u044b\u0439 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c \u0434\u043b\u044f \u0440\u0430\u0441\u0447\u0451\u0442\u0430 \u0447\u0430\u0441\u0442\u043e\u0442\u044b. \u041e\u0431\u043d\u043e\u0432\u043b\u0451\u043d cmake. \u041d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u0448\u0438\u0431\u043e\u043a \u0443\u043b\u0443\u0447\u0448\u0430\u044e\u0449\u0438\u0435 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u044c [&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-112015","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\" content=\"\u041f\u0440\u043e\u0435\u043a\u0442 software radio systems Radio Access Network \u0438\u043b\u0438 srsRAN \u043d\u0430\u0446\u0435\u043b\u0435\u043d \u043d\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0441\u0442\u0435\u043a\u043e\u0432 4G\/LTE \u0438 5G.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link 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