ukukhutshwa kweprojekthi , ephuhlisa i-stack evulekileyo yokuhambisa amacandelo e-LTE / 4G iinethiwekhi zeselula ngaphandle kwezixhobo ezikhethekileyo, usebenzisa kuphela i-transceivers programmable programmable, imilo yesignali kunye nokumodareyitha okusetwa yi-software (SDR, Software Defined Radio). Ikhowudi yeprojekthi ilayisenisi phantsi kwe-AGPLv3.
SrsLTE ukuphunyezwa kwe-LTE UE (Izixhobo zoMsebenzisi, amacandelo omxhasi wokudibanisa umrhumi kuthungelwano lwe-LTE), isikhululo sesiseko se-LTE (eNodeB, E-UTRAN Node B), kunye nezinto ze-LTE core network (MME - Mobility Management Entity for interaction kunye nezikhululo ezisisiseko, i-HSS - Umncedisi woMrhumo weKhaya ukugcina isiseko sedatha yababhalisi kunye nolwazi malunga neenkonzo ezinxulumene nababhalisi, i-SGW - Ukukhonza iSango lokucubungula kunye neepakethi zomzila kwizikhululo zesiseko, i-PGW - I-Packet Data Network Gateway yokudibanisa umrhumi kwiinethiwekhi zangaphandle.
Kwinguqulelo entsha:
- Inkxaso yeteknoloji yokufikelela kwirediyo yokuqala ye-LTE MAC, i-RLC kunye neeleya zePDCP (Unomathotholo oMtsha), ophuhliselwe uthungelwano oluphathwayo lwe-5G;
- Ukuphumeza umgangatho (I-Intanethi ye-Narrowband ye-Intanethi yezinto), esetyenziselwa ukudibanisa izixhobo ezizimeleyo ze-Intanethi yeZinto kwinethiwekhi yeselula, ikhowudi yokuvumelanisa yongezwe;
- Inkxaso eyongeziweyo ye-cryptographic algorithms , ngokusekelwe kwi-ZUC stream cipher;
- I-srsENB (ukuphunyezwa kwesikhululo sesiseko) ngoku ixhasa iteknoloji (I-Circuit Switched FallBack), ekuvumela ukuba ubuyele kwi-3G xa usenza umnxeba wezwi ukuba inethiwekhi ye-LTE ixhasa kuphela imo yokudlulisa idatha;
- Uluhlu luye longezwa ukuqhuba iimvavanyo ze-TTCN-3 ukuqinisekisa ukuthotyelwa komgangatho wamacandelo asetyenziselwa ukudibanisa umrhumi kwinethiwekhi ye-LTE;
- Imodeli entsha yokulinganisa unxibelelwano koololiwe abahamba ngesantya esiphezulu yongezwe kwisilingisi setshaneli;
- I-RRC kunye ne-NAS iileya zikhululekile ekuthinteleni iindlela zokusebenza.
Izinto eziphambili:
- Inkqubo inokusebenza nayo nayiphi na i-transceivers ecwangcisiweyo exhaswa yi-Ettus UHD (i-Universal Hardware Driver) kunye nabaqhubi be-bladeRF kwaye iyakwazi ukusebenza kwi-30.72 MHz bandwidth. Ukusebenza kwe-srsLTE kuye kwavavanywa nge-USRP B210, i-USRP B205mini, i-USRP X300, i-limeSDR kunye neebhodi ze-bladeRF;
- I-high-speed optimized decoder isebenzisa imiyalelo ye-Intel SSE4.1/AVX2 ukuphumeza ukusebenza okungaphezulu kwe-100 Mbps kwihardware yempahla. Ukuphunyezwa okusemgangathweni kwedikhowuda kulwimi lwe-C, ukubonelela ngokusebenza kwinqanaba le-25 Mbit / s;
- Ukuhambelana ngokupheleleyo nenguqulo 8 yomgangatho we-LTE kunye nenkxaso engaphelelanga kwezinye iimpawu ezivela kwi-9;
- Ukufumaneka koqwalaselo lokusebenza kwimo yokwahlulahlula amaza (FDD);
- Uvavanyo lwe-bandwidths: 1.4, 3, 5, 10, 15 kunye ne-20 MHz;
- Ixhasa iindlela zokuhambisa i-1 (i-antenna enye), i-2 (i-diversity transmit), i-3 (CCD) kunye ne-4 (i-multiplexing yendawo evaliweyo);
- I-Equalizer ngenkxaso ye-frequency coding ZF kunye ne-MMSE;
- Inkxaso yokudala iinkonzo zokuhambisa umxholo wemultimedia kwiindlela zokusasaza kunye nemulticast;
- Ukukwazi ukugcina iilogi ezineenkcukacha ngokubhekiselele kumanqanaba kunye nokulahla i-debugging;
- Inkqubo yokubamba ipakethe yenqanaba le-MAC, ehambelana ne-Wireshark network analyzer;
- Ukufumaneka kweemetrics kunye nedatha yokulandelela kwimowudi yomgca womyalelo;
- Iifayile zoqwalaselo ezineenkcukacha;
- Ukuphunyezwa kwe-LTE MAC, RLC, PDCP, RRC, NAS, S1AP kunye ne-GW layers.
umthombo: opennet.ru