sakin aikin , wanda ke haɓaka buɗaɗɗen tari don ƙaddamar da sassan cibiyoyin sadarwar salula na LTE/4G ba tare da kayan aiki na musamman ba, ta amfani da masu ɗaukar shirye-shirye na duniya kawai, siginar siginar da daidaitawa waɗanda aka saita ta software (SDR, Rediyon Ma'anar Software). Lambar aikin lasisi a ƙarƙashin AGPLv3.
SrsLTE aiwatar da LTE UE (Kayan Mai amfani, kayan aikin abokin ciniki don haɗa mai biyan kuɗi zuwa hanyar sadarwar LTE), tashar tashar LTE (eNodeB, E-UTRAN Node B), da kuma abubuwan cibiyar sadarwar LTE core (MME - Ƙungiyar Gudanar da Motsawa don hulɗa. tare da tashoshi tushe, HSS - Home Subscriber Server don adana bayanan masu biyan kuɗi da bayanai game da ayyukan da ke da alaƙa da masu biyan kuɗi, SGW - Hidimar Ƙofar don sarrafawa da fakitin kewayawa don tashoshin tushe, PGW - Fakitin Data Network Gateway don haɗa mai biyan kuɗi zuwa cibiyoyin sadarwar waje.
A cikin sabon sigar:
- An sake fasalta ɗakin karatu don aiwatar da tsarin tari na zahiri ();
- A cikin srsUE (LTE UE, Kayan aikin Mai amfani, abubuwan da suka dace don haɗa mai biyan kuɗi zuwa hanyar sadarwar LTE) an ƙara tallafin tsarin. (Time Division Duplex) ban da tallafi na baya da kuma tsarin rarraba mitar gama gari a cikin tashar FDD (Frequency Division Duplex);
- srsUE ya ƙara goyan bayan dabarar haɗa tashoshi na mitar () don ƙara yawan kayan aiki zuwa ga mai amfani na ƙarshe;
- An ƙara tallafin watsa shirye-shirye zuwa srsENB (Base Station Implementation) da srsEPC (Mahimman Abubuwan Sadarwar Sadarwa). , yawanci ana amfani dashi don saita hanyar sadarwa ta kai tsaye tsakanin mai biyan kuɗi da tashar tushe;
- An ƙara tallafi don ɓoye zirga-zirgar masu biyan kuɗi (ɓoye-jigon mai amfani) zuwa srsENB. An aiwatar da goyan bayan zirga-zirgar siginar (NAS-cryption) a baya;
- An aiwatar da na'urar kwaikwayo ta tashar don tashoshin 3GPP EPA, EVA da ETU;
- Dangane da ZeroMQ, ana aiwatar da direba na RF mai kama da wanda ke ba da watsa siginar I/Q akan IPC/cibiyar sadarwa.
Babban fasali:
- Tsarin zai iya aiki tare da kowane mai ɗaukar shirye-shirye wanda ke goyan bayan Ettus UHD (Direba Hardware na Duniya) da direbobin bladeRF kuma masu iya aiki a bandwidth na 30.72 MHz. An gwada aikin srsLTE tare da USRP B210, USRP B205mini, USRP X300, limeSDR da allon bladeRF;
- Ingantattun na'ura mai saurin sauri ta amfani da umarnin Intel SSE4.1/AVX2 don cimma aikin sama da 100 Mbps akan kayan masarufi. Daidaitaccen aiwatar da ƙaddamarwa a cikin harshen C, yana ba da aiki a matakin 25 Mbit/s;
- Cikakken dacewa tare da sigar 8 na ma'aunin LTE da goyan bayan wani yanki don wasu fasaloli daga sigar 9;
- Samar da daidaitawa don aiki a yanayin rarraba mitar (FDD);
- Ƙwayoyin da aka gwada: 1.4, 3, 5, 10, 15 da 20 MHz;
- Yana goyan bayan hanyoyin watsawa 1 (eriya ɗaya), 2 (watsawa iri-iri), 3 (CCD) da 4 (rufe-madauki na sararin samaniya);
- Mai daidaitawa tare da goyan bayan lambar mitar ZF da MMSE;
- Taimako don ƙirƙirar ayyuka don sadar da abun ciki na multimedia a cikin watsa shirye-shirye da kuma yanayin multicast;
- Ability don kula da cikakken rajistan ayyukan tare da la'akari da matakan da debugging juji;
- Tsarin fakitin matakin MAC, mai jituwa tare da mai nazarin cibiyar sadarwar Wireshark;
- Samun ma'auni tare da bayanan ganowa a cikin yanayin layin umarni;
- Cikakken fayilolin sanyi;
- Aiwatar da LTE MAC, RLC, PDCP, RRC, NAS, S1AP da GW yadudduka.
source: budenet.ru