ProHoster > Blog > internet nhau > Kuburitswa kweiyo yakavhurika 4G stack srsLTE 19.09

Kuburitswa kweiyo yakavhurika 4G stack srsLTE 19.09

zvakaitika kuburitswa kweprojekiti srsLTE 19.09, iyo inogadzira yakavhurika stack yekuisa zvikamu zveLTE/4G cellular network pasina midziyo yakakosha, uchishandisa chete universal programmable transceivers, chimiro chechiratidzo uye modulation yayo inoiswa nesoftware (SDR, Software Defined Radio). Project code zvakapihwa ine rezinesi pasi pe AGPLv3.

SrsLTE inosanganisira kuitwa kweLTE UE (Mushandisi Zvishandiso, zvikamu zvevatengi zvekubatanidza munyoreri kune LTE network), LTE base station (eNodeB, E-UTRAN Node B), pamwe nezvinhu zveLTE core network (MME - Mobility Management Entity yekudyidzana. ine zviteshi zvepasi, HSS - Imba Inonyoresa Server yekuchengetedza dhatabhesi uye ruzivo nezve masevhisi ane hukama nevanyoreri, SGW - Kubatira Gedhi rekugadzirisa uye routing mapaketi ezviteshi zvepasi, PGW - Packet Data Network Gateway yekubatanidza munyoreri kune ekunze network.

Mushanduro itsva:

  • Yekutanga redhiyo yekuwana tekinoroji rutsigiro rweLTE MAC, RLC uye PDCP maseru NR (New Radio), yakagadzirirwa 5G nharembozha;
  • Kuita chiyero NB-IoT (Narrowband Internet yeZvinhu), yakashandiswa kubatanidza yakazvimirira Internet yezvinhu zvishandiso kune nharembozha, kodhi yekubatanidza yakawedzerwa;
  • Yakawedzera rutsigiro rwecryptographic algorithms EIA3 uye EEA3, yakavakirwa parukova rweZUC cipher;
  • srsENB (base station application) ikozvino inotsigira tekinoroji CSFB (Circuit Switched FallBack), iyo inokubvumira kuti udzoke shure ku3G paunenge uchiita kudana kwezwi kana LTE network inongotsigira nzira yekufambisa data;
  • Mutsara wakawedzerwa kuti uedze bvunzo dzeTTCN-3 kuti uone kutevedzera chiyero chezvikamu zvinoshandiswa kubatanidza munyoreri kune network yeLTE;
  • Muenzaniso mutsva wekufananidza kutaurirana muzvitima zvinomhanya-mhanya wakawedzerwa kune chiteshi simulator;
  • Iwo maRRC neNAS akaturikidzana anosunungurwa kubva pakuvharira maitiro ekushandisa.

Zvinhu zvakakosha:

  • Iyo sisitimu inogona kushanda nechero programmable transceivers inotsigirwa neEttus UHD (Universal Hardware Driver) uye madhiraivha ebladeRF uye inokwanisa kushanda pa30.72 MHz bandwidth. srsLTE operation yakaedzwa neUSRP B210, USRP B205mini, USRP X300, limeSDR uye bladeRF mabhodhi;
  • High-speed optimized decoder uchishandisa mirairo yeIntel SSE4.1/AVX2 kuti uwane pamusoro pe 100 Mbps kuita pane commodity hardware. Kuitwa kwakajairwa kweiyo decoder mumutauro weC, kupa mashandiro pamwero we25 Mbit / s;
  • Kuenderana kwakazara neshanduro 8 yeLTE yakajairwa uye chikamu chekutsigira kwemamwe maficha kubva mushanduro 9;
  • Kuwanikwa kwekugadzirisa kwekushanda mufrequency division division (FDD) mode;
  • Yakaedzwa bandwidths: 1.4, 3, 5, 10, 15 uye 20 MHz;
  • Inotsigira nzira dzekutumira 1 (antenna imwe chete), 2 (kutumira zvakasiyana), 3 (CCD) uye 4 (yakavharwa-loop spatial multiplexing);
  • Equalizer nerutsigiro rwe frequency coding ZF uye MMSE;
  • Tsigiro yekugadzira masevhisi ekuendesa multimedia zvirimo munhepfenyuro uye multicast modes;
  • Kugona kuchengetedza matanda akadzama maererano nemazinga uye debugging dumps;
  • MAC level packet capture system, inoenderana neWireshark network analyzer;
  • Kuwanikwa kwema metrics ane trace data mu command line mode;
  • Detailed configuration mafaira;
  • Kuitwa kweLTE MAC, RLC, PDCP, RRC, NAS, S1AP uye GW maseru.

    • Source: opennet.ru

Voeg