tokollo ea morero , e hlahisang stack e bulehileng bakeng sa ho kenya likarolo tsa marang-rang a LTE / 4G a marang-rang ntle le lisebelisoa tse khethehileng, ho sebelisa li-transceivers tse hlophisitsoeng feela tsa bokahohle, sebopeho sa pontšo le modulation ea tsona tse behiloeng ke software (SDR, Software Defined Radio). Khoutu ea morero e nang le laesense tlasa AGPLv3.
SrsLTE ts'ebetsong ea LTE UE (Lisebelisoa tsa Basebelisi, likarolo tsa bareki bakeng sa ho hokahanya motho ea ngolisitseng marang-rang a LTE), setsi sa motheo sa LTE (eNodeB, E-UTRAN Node B), hammoho le likarolo tsa marang-rang a mantlha a LTE (MME - Mobility Management Entity for interaction). e nang le liteishene tsa motheo, HSS - Home Subscriber Server bakeng sa ho boloka polokelo ea ba ngolisitseng le tlhahisoleseding e mabapi le litšebeletso tse amanang le ba ngolisitseng, SGW - Serving Gateway bakeng sa ho sebetsa le ho tsamaisa lipakete bakeng sa liteishene tsa motheo, PGW - Packet Data Network Gateway bakeng sa ho hokahanya motho ea ngolisitseng marang-rang a kantle.
Khatisong e ncha:
- Laeborari e hlophisitsoe bocha ho kenya tšebetsong karolo ea 'mele ea stack ();
- Ho srsUE (LTE UE, Lisebelisoa tsa Basebelisi, likarolo tsa lehlakoreng la mosebelisi tse hlokahalang ho hokela motho ea ngolisitseng marang-rang a LTE) tšehetso ea sebopeho e kentsoe. (Time Division Duplex) ho phaella ho mokhoa o neng o tšehetsoa pele le o tloaelehileng oa ho fana ka makhetlo a mangata ho mocha oa FDD (Frequency Division Duplex);
- srsUE e ekelitse tšehetso bakeng sa mokhoa oa ho kopanya liteishene tsa maqhubu () ho eketsa tlhahiso ho mosebelisi oa ho qetela;
- Tšehetso ea phatlalatso e kenyelelitsoe ho srsENB (Base Station Implementation) le srsEPC (Core Network Components). , hangata e sebelisetsoang ho theha mocha oa puisano o tobileng pakeng tsa ba ngolisitseng le setsi sa motheo;
- Ts'ehetso ea ho ngolla sephethephethe sa ba ngolisitseng (User-plane encryption) e kentsoe ho srsENB. Tšehetso bakeng sa sephethephethe sa pontšo (NAS-plane encryption) e ile ea kenngoa ts'ebetsong pele ho moo;
- E kentse mochini oa simulator bakeng sa likanale tsa 3GPP EPA, EVA le ETU;
- Ho ipapisitsoe le ZeroMQ, ho kengoa tšebetsong mokhanni oa RF o fanang ka phetiso ea lets'oao la I/Q holim'a IPC/network.
Lintlha tsa bohlokoa:
- Sistimi ena e ka sebetsa le li-transceiver life kapa life tse lokiselitsoeng tse tšehelitsoeng ke Ettus UHD (Universal Hardware Driver) le bakhanni ba bladeRF mme ba khona ho sebetsa ho 30.72 MHz bandwidth. Ts'ebetso ea srsLTE e lekoa ka USRP B210, USRP B205mini, USRP X300, limeSDR le liboto tsa bladeRF;
- Decoder e ntlafalitsoeng ea lebelo le holimo e sebelisa litaelo tsa Intel SSE4.1/AVX2 ho fihlela ts'ebetso e fetang 100 Mbps ho hardware ea thepa. Ts'ebetsong e tloaelehileng ea "decoder" ka puo ea C, e fanang ka ts'ebetso boemong ba 25 Mbit / s;
- Ho lumellana ka botlalo le mofuta oa 8 oa maemo a LTE le tšehetso e sa fellang bakeng sa likarolo tse ling ho tsoa ho mofuta oa 9;
- Ho fumaneha ha tlhophiso bakeng sa ts'ebetso ka mokhoa oa karohano ea maqhubu (FDD);
- Li-bandwidth tse lekiloeng: 1.4, 3, 5, 10, 15 le 20 MHz;
- E ts'ehetsa mekhoa ea phetisetso ea 1 (antenna e le 'ngoe), 2 (ho fetisa mefuta-futa), 3 (CCD) le 4 (e koetsoeng-loop spatial multiplexing);
- Equalizer e nang le ts'ehetso ea ho etsa likhoutu khafetsa ZF le MMSE;
- Ts'ehetso ea ho theha lits'ebeletso tsa ho fana ka litaba tsa multimedia ka mekhoa ea phatlalatso le ea multicast;
- Bokhoni ba ho boloka lits'oants'o tse qaqileng mabapi le maemo le lithōle tsa debugging;
- Sistimi ea ho hapa lipakete tsa boemo ba MAC, e tsamaellanang le analyzer ea marang-rang ea Wireshark;
- Ho fumaneha ha metrics ka trace data ka mokhoa oa taelo ea taelo;
- Lifaele tse qaqileng tsa tlhophiso;
- Ho kenngwa tshebetsong ha LTE MAC, RLC, PDCP, RRC, NAS, S1AP le GW layers.
Source: opennet.ru