qhov project tso tawm , uas tsim ib pawg qhib rau deploying Cheebtsam ntawm LTE / 4G cellular tes hauj lwm yam tsis muaj cov khoom tshwj xeeb, siv tsuas yog universal programmable transceivers, lub teeb liab duab thiab modulation uas yog teem los ntawm software (SDR, Software Defined Radio). Qhov project code muaj ntawv tso cai raws li AGPLv3.
SrsLTE Kev siv LTE UE (Cov Khoom Siv Khoom Siv, cov neeg siv khoom sib txuas rau kev sib txuas cov neeg siv rau LTE network), LTE chaw nres tsheb hauv paus (eNodeB, E-UTRAN Node B), nrog rau cov ntsiab lus ntawm LTE core network (MME - Mobility Management Entity rau kev sib cuam tshuam nrog cov chaw nres tsheb hauv paus, HSS - Lub Tsev Pabcuam Cov Neeg Siv Khoom Hauv Tsev rau kev khaws cov ntaub ntawv sau npe thiab cov ntaub ntawv hais txog cov kev pabcuam cuam tshuam nrog cov neeg siv khoom, SGW - Kev Pabcuam Gateway rau kev ua thiab xa cov pob ntawv rau cov chaw nres tsheb hauv paus, PGW - Packet Data Network Gateway rau kev txuas tus neeg rau npe mus rau lwm lub network.
Hauv qhov tshiab version:
- Lub tsev qiv ntawv tau raug kho dua tshiab los siv lub cev txheej ntawm pawg ();
- Hauv srsUE (LTE UE, Cov Khoom Siv Khoom Siv, cov khoom siv sab nrauv tsim nyog los txuas tus neeg siv rau LTE network) tau ntxiv cov kev txhawb nqa (Lub Sijhawm Division Duplex) ntxiv rau qhov kev txhawb nqa yav dhau los thiab ntau hom kev faib tawm ntau zaus hauv FDD (Frequency Division Duplex) channel;
- srsUE tau ntxiv kev txhawb nqa rau cov txheej txheem ntawm kev sib txuas cov zaus raws () kom nce throughput rau cov neeg siv kawg;
- Kev txhawb nqa tshaj tawm tau muab ntxiv rau srsENB (Pib Chaw Ua Haujlwm Kev Ua Haujlwm) thiab srsEPC (Core Network Cheebtsam). , feem ntau yog siv los teeb tsa kev sib txuas lus ncaj qha ntawm tus neeg siv khoom thiab lub hauv paus chaw nres tsheb;
- Kev them nyiaj yug rau encrypting cov neeg siv tsheb khiav (User-plane encryption) tau ntxiv rau srsENB. Kev them nyiaj yug rau kev taw qhia tsheb (NAS-plane encryption) tau ua tiav ua ntej;
- Siv lub tshuab simulator rau 3GPP EPA, EVA thiab ETU raws;
- Raws li ZeroMQ, tus tsav tsheb RF virtual yog siv los muab I / Q teeb liab kis tau los ntawm IPC / network.
Cov yam ntxwv tseem ceeb:
- Lub kaw lus tuaj yeem ua haujlwm nrog txhua qhov programmable transceivers txhawb nqa los ntawm Ettus UHD (Universal Hardware Driver) thiab bladeRF tsav tsheb thiab muaj peev xwm ua haujlwm ntawm 30.72 MHz bandwidth. srsLTE kev ua haujlwm tau raug sim nrog USRP B210, USRP B205mini, USRP X300, limeSDR thiab bladeRF boards;
- High-speed optimized decoder siv Intel SSE4.1 / AVX2 cov lus qhia kom ua tiav tshaj 100 Mbps kev ua haujlwm ntawm cov khoom siv kho vajtse. Kev siv tus qauv txiav txim siab hauv C lus, muab kev ua haujlwm ntawm qib 25 Mbit / s;
- Tag nrho kev sib raug zoo nrog version 8 ntawm LTE tus qauv thiab ib feem kev txhawb nqa rau qee qhov nta ntawm version 9;
- Muaj kev teeb tsa rau kev ua haujlwm hauv kev faib tawm zaus (FDD) hom;
- Tested bandwidths: 1.4, 3, 5, 10, 15 thiab 20 MHz;
- Txhawb kis tau tus mob hom 1 (ib tug kav hlau txais xov), 2 (hloov ntau haiv neeg), 3 (CCD) thiab 4 (kaw-loop spatial multiplexing);
- Sib npaug nrog kev txhawb nqa rau zaus coding ZF thiab MMSE;
- Kev them nyiaj yug tsim cov kev pab cuam rau xa cov ntsiab lus multimedia hauv kev tshaj tawm thiab multicast hom;
- Muaj peev xwm tswj xyuas cov cav kom ntxaws nrog rau cov qib thiab debugging dumps;
- MAC qib packet capture system, sib xws nrog Wireshark network analyzer;
- Muaj cov metrics nrog cov ntaub ntawv taug qab hauv hom kab hais kom ua;
- Cov ntaub ntawv nthuav dav configuration;
- Kev siv LTE MAC, RLC, PDCP, RRC, NAS, S1AP thiab GW txheej.
Tau qhov twg los: opennet.ru