{"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\/et\/blog\/news\/vypusk-otkrytogo-4g-steka-srslte-19-09","title":{"rendered":"Avatud 4G-kiht 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\">Toimus<\/a><\/noindex> projekti v\u00e4ljalaskmine <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/srsLTE\/\">srsLTE 19.09<\/a><\/noindex>, arendades avatud virna, et juurutada LTE\/4G mobiiliv\u00f5rgustiku komponente ilma spetsiaalse varustuseta, kasutades ainult universaalseid programmeeritavaid saatmise-vastuv\u00f5tmisseadmeid, mille signaalivorm ja modulaator on programmeeritavad (SDR, Software Defined Radio). Projekti kood <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/srsLTE\/srsLTE\">toimetatakse<\/a><\/noindex> on AGPLv3 litsentsi all.<\/p>\n<p>SrsLTE <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=48923\">RFC 9218: Ulatuslik Prioriteetimise Skeem HTTP jaoks<\/a><\/noindex> LTE UE (User Equipment, kliendikomponendid abonendi \u00fchendamiseks LTE-v\u00f5rku), LTE baasjaam (eNodeB, E-UTRAN Node B) ning LTE peav\u00f5rgu elemendid (MME \u2014 liikuvuse haldamise element, et suhelda baasjaamadega, HSS \u2014 kodu tellija server abonentide andmebaasi ja abonentidega seotud teenuste teabe salvestamiseks, SGW \u2014 teenuse v\u00e4rav pakettide t\u00f6\u00f6tlemiseks ja marsruutimiseks baasjaamadele ning PGW \u2014 pakettandmete v\u00f5rgu v\u00e4rav, et \u00fchendada abonent v\u00e4listesse v\u00f5rkudesse. <\/p>\n<p>Uues versioonis:<\/p>\n<ul>\n<li class=\"l\"> LTE MAC, RLC ja PDCP tasemetel on ellu viidud algtoetuse raadio \u0434\u043e\u0441\u0442\u0443\u043f\u0430 tehnoloogiale <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/5G_NR\">NR<\/a><\/noindex> (Uus Raadio), mis on loodud 5G mobiilv\u00f5rkude jaoks;\n<li class=\"l\"> Standardi rakenduses <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/NB_IoT\">NB-IoT<\/a><\/noindex> (Narrowband Internet of Things), mida kasutatakse autonoomsete asjade interneti seadmete \u00fchendamiseks mobiiliv\u00f5rguga, on lisatud s\u00fcnkroonimisfunktsiooni kood;\n<li class=\"l\"> Kasutusele on v\u00f5etud kr\u00fcptograafilised algoritmid  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.semanticscholar.org\/paper\/The-New-LTE-Cryptographic-Algorithms-EEA3-and-EIA3-Orhanou-Elhajji\/601127d28c86cc45377ad3902a35ff1de7016e6c\">EIA3 ja EEA3<\/a><\/noindex>, mis p\u00f5hinevad voogedastuskr\u00fcptimise ZUC-l;\n<li class=\"l\"> srsENB (basaasja rakendus) toetab tehnoloogiat <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), mis v\u00f5imaldab h\u00e4\u00e4lek\u00f5ne puhul tagasi l\u00fclituda 3G-le, kui LTE v\u00f5rk toetab ainult andmeedastusre\u017eiimi;\n<li class=\"l\"> Lisatud on kiht TTCN-3 testide k\u00e4ivitamiseks, et kontrollida komponentide vastavust LTE v\u00f5rguga kasutamise standarditele;\n<li class=\"l\"> Kanali simulaatorisse on lisatud uus mudel kiirusrongide side simuleerimiseks;\n<li class=\"l\"> RRC ja NAS t\u00f6\u00f6re\u017eiimidest on vabastatud.\n<\/ul>\n<p>P\u00f5hifunktsioonid:\n<\/p>\n<ul>\n<li class=\"l\"> S\u00fcsteem suudab t\u00f6\u00f6tada mis tahes programmeeritavate saatmise-vastuv\u00f5tmisseadmetega, mida toetavad Ettus UHD (Universal Hardware Driver) ja bladeRF draiverid ning mis suudavad t\u00f6\u00f6tada 30.72 MHz ribalaiusega. srsLTE t\u00f6\u00f6 on testitud USRP B210, USRP B205mini, USRP X300, limeSDR ja bladeRF kaartidega;\n<\/li>\n<li class=\"l\"> K\u00f5rge kiirus ja optimeeritud dekooder, mis kasutab Intel SSE4.1\/AVX2 k\u00e4ske, et saavutada \u00fcle 100 Mbit\/s tavalistes seadmetes. Standardne C-keeles dekooder, mis tagab 25 Mbit\/s j\u00f5udluse;\n<\/li>\n<li class=\"l\"> T\u00e4ielik \u00fchilduvus LTE 8. versiooniga ja osaline toetus 9. versiooni m\u00f5nedele funktsioonidele;\n<\/li>\n<li class=\"l\"> Konfiguratsiooni olemasolu kanali sagedusjaotuse (FDD) re\u017eiimis;\n<\/li>\n<li class=\"l\"> Testitud l\u00e4bilaskvused: 1.4, 3, 5, 10, 15 ja 20 MHz;\n<\/li>\n<li class=\"l\"> Toetab edastusre\u017eiime 1 (\u00fche antenniga), 2 (edastusdiversiteet), 3 (CCD) ja 4 (suletud silmuse ruumiline kodeerimine);\n<\/li>\n<li class=\"l\"> Ekvalaiser toe ZF ja MMSE sageduskoodimisel;\n<\/li>\n<li class=\"l\"> Toetatakse teenuste loomist multimeedia sisu edastamiseks broadcast ja multicast re\u017eiimides;\n<\/li>\n<li class=\"l\"> Detailsete logide pidamise v\u00f5imalus koos tasemete ja t\u00f5rkedumpide seostamisega;\n<\/li>\n<li class=\"l\"> MAC-taset pakettide salvestamise s\u00fcsteem, mis on \u00fchilduv v\u00f5rguanal\u00fcsaatoriga Wireshark;\n<\/li>\n<li class=\"l\"> Saadaval on meetrikad j\u00e4lgimise andmetega k\u00e4surea re\u017eiimis;\n<\/li>\n<li class=\"l\"> Detailitud konfiguratsioonifailid;\n<\/li>\n<li class=\"l\"> LTE MAC, RLC, PDCP, RRC, NAS, S1AP ja GW tasemete teostamine.\n<\/li>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Allikas: <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 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" 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