Itusilẹ ti akopọ 4G ṣiṣi srsLTE 19.09

waye idasilẹ ise agbese srsLTE 19.09, eyiti o ṣe agbekalẹ akopọ ṣiṣi fun gbigbe awọn paati ti awọn nẹtiwọọki cellular LTE / 4G laisi ohun elo pataki, lilo awọn transceivers eto gbogbo agbaye nikan, apẹrẹ ifihan ati awose eyiti a ṣeto nipasẹ sọfitiwia (SDR, Redio asọye Software). koodu ise agbese pese iwe-aṣẹ labẹ AGPLv3.

SrsLTE diẹ ẹ sii imuse ti LTE UE (Awọn ohun elo olumulo, awọn paati alabara fun sisopọ alabapin kan si nẹtiwọọki LTE), ibudo ipilẹ LTE (eNodeB, E-UTRAN Node B), ati awọn eroja ti nẹtiwọọki LTE mojuto (MME - Ohun elo Iṣakoso Iṣipopada fun ibaraenisepo pẹlu ipilẹ ibudo, HSS - Home alabapin Server fun titoju a alabapin database ati alaye nipa awọn iṣẹ ni nkan ṣe pẹlu awọn alabapin, SGW - Sìn Gateway fun processing ati afisona awọn apo-iwe fun mimọ ibudo, PGW - Packet Data Network Gateway fun pọ a alabapin si ita nẹtiwọki.

Ninu ẹya tuntun:

• Atilẹyin imọ-ẹrọ iraye si redio akọkọ fun LTE MAC, RLC ati awọn fẹlẹfẹlẹ PDCP NR (Redio Tuntun), ni idagbasoke fun awọn nẹtiwọọki alagbeka 5G;
• Lati mu awọn bošewa NB-IoT (Nẹtiwọọki Narrowband ti Awọn nkan), ti a lo lati so Intanẹẹti adase awọn ẹrọ Ohun si nẹtiwọọki alagbeka kan, koodu amuṣiṣẹpọ ti ṣafikun;
• Atilẹyin ti a ṣafikun fun awọn algoridimu cryptographic EIA3 ati EEA3, da lori awọn ZUC ṣiṣan cipher;
• srsENB (imuse ibudo ipilẹ) ni bayi ṣe atilẹyin imọ-ẹrọ CSFB (Circuit Switched FallBack), eyiti o fun ọ laaye lati ṣubu pada si 3G nigbati o ba n pe ohun kan ti nẹtiwọki LTE ba ṣe atilẹyin ipo gbigbe data nikan;
• A ti ṣafikun Layer kan lati ṣiṣe awọn idanwo TTCN-3 lati rii daju ibamu pẹlu boṣewa ti awọn paati ti a lo lati so alabapin si nẹtiwọọki LTE;
• Awoṣe tuntun fun simulating awọn ibaraẹnisọrọ ni awọn ọkọ oju irin iyara ti o ga julọ ti fi kun simulator ikanni;
• Awọn ipele RRC ati NAS ni ominira lati dinamọ awọn ipo iṣẹ.

Осnovnые возможности:

• Eto naa le ṣiṣẹ pẹlu eyikeyi awọn transceivers eto ti o ni atilẹyin nipasẹ Ettus UHD (Iwakọ Hardware Gbogbo) ati awọn awakọ bladeRF ati ti o lagbara lati ṣiṣẹ ni bandiwidi 30.72 MHz. Iṣẹ srsLTE ti ni idanwo pẹlu USRP B210, USRP B205mini, USRP X300, limeSDR ati awọn igbimọ bladeRF;
• Decoder iṣapeye iyara giga ni lilo awọn ilana Intel SSE4.1/AVX2 lati ṣaṣeyọri iṣẹ ṣiṣe 100 Mbps lori ohun elo eru. Imuse boṣewa ti oluyipada ni ede C, pese iṣẹ ni ipele ti 25 Mbit/s;
• Ibamu ni kikun pẹlu ẹya 8 ti boṣewa LTE ati atilẹyin apakan fun diẹ ninu awọn ẹya lati ẹya 9;
• Wiwa iṣeto ni fun iṣẹ ni ipo pipin igbohunsafẹfẹ (FDD);
• Idanwo bandiwidi: 1.4, 3, 5, 10, 15 ati 20 MHz;
• Ṣe atilẹyin awọn ipo gbigbe 1 (eriali ẹyọkan), 2 (oniruuru atagba), 3 (CCD) ati 4 (pipade-loop spatial multiplexing);
• Oluṣeto pẹlu atilẹyin fun koodu igbohunsafẹfẹ ZF ati MMSE;
• Atilẹyin fun ṣiṣẹda awọn iṣẹ fun jiṣẹ akoonu multimedia ni igbohunsafefe ati awọn ipo multicast;
• Agbara lati ṣetọju awọn akọọlẹ alaye pẹlu itọkasi awọn ipele ati awọn idalẹnu n ṣatunṣe aṣiṣe;
• Eto imudani ipele ipele MAC, ibaramu pẹlu olutọpa nẹtiwọọki Wireshark;
• Wiwa awọn metiriki pẹlu data itọpa ni ipo laini aṣẹ;
• Awọn faili iṣeto ni alaye;
• Imuse ti LTE MAC, RLC, PDCP, RRC, NAS, S1AP ati GW fẹlẹfẹlẹ.

orisun: opennet.ru