fa'amatu'u galuega , lea e atiina ae ai se faaputuga tatala mo le faʻapipiʻiina o vaega o fesoʻotaʻiga telefoni feaveaʻi LTE / 4G e aunoa ma ni meafaigaluega faʻapitoa, e faʻaaoga ai na o transceivers programmable lautele, o le faʻailoga faʻailoga ma le faʻaogaina o loʻo faʻatulagaina e polokalama (SDR, Leitio Faʻatonuina Polokalame). Poloketi code laiseneina i lalo ole AGPLv3.
SrsLTE fa'atinoina o le LTE UE (Meafaigaluega Fa'aoga, vaega o tagata o tausia mo le fa'afeso'ota'i o se tagata fai saofaga i le feso'ota'iga LTE), nofoaga fa'avae LTE (eNodeB, E-UTRAN Node B), fa'apea fo'i ma elemene o le feso'ota'iga autu LTE (MME - Mobility Management Entity mo fegalegaleaiga faʻatasi ai ma nofoaga autu, HSS - Home Subscriber Server mo le teuina o se faʻamaumauga a le au fai saofaga ma faʻamatalaga e uiga i auaunaga e fesoʻotaʻi ma le au fai saofaga, SGW - Serving Gateway mo le faʻaogaina ma le taʻavaleina o pusa mo nofoaga autu, PGW - Packet Data Network Gateway mo le faʻafesoʻotaʻi o se tagata fai saofaga i fesoʻotaiga i fafo.
I le lomiga fou:
- Ua toe fa'atulagaina le faletusi e fa'atino ai le vaega fa'aletino o le faaputuga ();
- I le srsUE (LTE UE, Mea Fa'aoga, mea e mana'omia e fa'afeso'ota'i ai se tagata fai saofaga i le feso'otaiga LTE) ua fa'aopoopoina le lagolago. (Time Division Duplex) e fa'aopoopo i le fa'asologa o fa'asalalauga fa'asalalau muamua ma sili atu ona taatele i le FDD (Frequency Division Duplex) auala;
- srsUE ua faʻaopoopoina le lagolago mo le metotia o le tuʻufaʻatasia o alalaupapa alavai () ia faʻateleina le faʻaogaina i le tagata faʻaaoga mulimuli;
- Ua fa'aopoopoina le lagolago fa'asalalauga i le srsENB (Fa'atonuga o Nofoaga Fa'avae) ma le srsEPC (Core Network Components). , e masani ona faʻaaogaina e faʻatutuina ai se fesoʻotaʻiga tuusaʻo i le va o le tagata fai saofaga ma le nofoaga autu;
- Lagolago mo le fa'ailogaina o feoaiga a le au fai saofaga (User-plane encryption) ua fa'aopoopoina ile srsENB. Lagolago mo faʻailoga faʻailoga (NAS-vaalele encryption) na faʻatinoina muamua;
- Fa'atino se fa'ata'ita'i auala mo le 3GPP EPA, EVA ma ETU;
- Faʻavae i luga o le ZeroMQ, o loʻo faʻatinoina se avetaʻavale RF faʻapitoa e tuʻuina atu ai le faʻailoga I / Q ile IPC / fesoʻotaʻiga.
O mea taua:
- E mafai ona galulue le faiga ma so'o se transceivers e mafai ona fa'apolokalameina e lagolagoina e le Ettus UHD (Universal Hardware Driver) ma le bladeRF aveta'avale ma mafai ona fa'agaoioi ile 30.72 MHz bandwidth. srsLTE gaioiga ua faʻataʻitaʻiina i USRP B210, USRP B205mini, USRP X300, limeSDR ma bladeRF laupapa;
- Decoder fa'alelei maualuga-saosaoa fa'aaoga Intel SSE4.1/AVX2 fa'atonuga e ausia ai le 100 Mbps fa'atinoga i mea fa'atau oloa. Fa'atinoga masani o le decoder i le gagana C, tu'uina atu fa'atinoga i le tulaga o le 25 Mbit/s;
- Fegalegaleaiga atoatoa ma le version 8 o le LTE standard ma se vaega lagolago mo nisi vaega mai le version 9;
- Avanoa o le faʻatulagaina mo le faʻagaioiga i le vaeluaga o le vaeluaga o taimi (FDD) mode;
- Fa'ata'ita'iina bandwidths: 1.4, 3, 5, 10, 15 ma le 20 MHz;
- Lagolagoina auala fa'asalalau 1 (antenna ta'itasi), 2 (transmit diversity), 3 (CCD) ma le 4 (closed-loop spatial multiplexing);
- Equalizer faʻatasi ai ma le lagolago mo le faʻasologa o taimi ZF ma MMSE;
- Lagolago mo le fatuina o auaunaga mo le tuʻuina atu o mea faʻasalalau i faʻasalalauga ma faʻasalalauga faʻasalalauga;
- Malosiaga e fa'atumauina fa'amaumauga au'ili'ili e fa'atatau i tulaga ma fa'aleaga otaota;
- MAC tulaga fa'apipi'i pusa faiga, fetaui ma Wireshark su'ega feso'otaiga;
- Avanoa o metrics fa'atasi ai ma fa'amaumauga fa'amau i le laina fa'atonu;
- Fa'amatalaga fa'atonu faila;
- Faʻatinoga o LTE MAC, RLC, PDCP, RRC, NAS, S1AP ma GW layers.
puna: opennet.ru