Zininzi iikiti ezisekwe kwi-SBC Raspberry Pi, okanye kwibhodi yophuhliso Arduino. Ukusuka kokumiselwe ukwenza eyakho Ii-retro consoles, nabanye ilaptops, izixhobo iyaqhekekanjl. Kwindaba ye Iprojekthi yeLibreCellular Bafuna ukuqhubekeka kwaye bajoyine ixesha lezixhobo eziphathwayo kunye neenethiwekhi ezinesantya esiphezulu zisebenzisa iihardware zasimahla kunye nesoftware.
I-LibreCellular ijolise ukuququzelela uthungelwano lweefowuni eziphathwayo ngokusekwe Itekhnoloji ye4G LTE, usebenzisa isoftware yomthombo ovulekileyo kunye nezixhobo. Ngenxa yoku zisekwe kwi-SDR (iRadio Defined Radio), inkqubo ye-radiocommunication apho izinto ezahlukeneyo ezenziwa ngokwasemzimbeni zithathelwa indawo yisoftware.
Injongo yeLibreCellular
ILibreCellular inenye injongo, ayisiyiyo kuphela yokuphunyezwa kwe inethiwekhi yedatha yakho ephathekayo sebenza, kodwa nokuba ungayenza ngendleko eziphantsi. Kwelinye icala, bayijongile le nkqubo kuvavanyo olungqongqo ukuqinisekisa ukuba isebenza ngokufanelekileyo, kwaye bayinike izixhobo kunye namaxwebhu kubaphuhlisi abaya kuyidinga.
Zonke izinto eziza kuyilwa yile projekthi ziya kuba phantsi kwelayisensi yemithombo evulekileyo, kwaye iimodyuli ezininzi kulindeleke ukuba zifike ukuze ziqhubeke nokugqiba lo msebenzi. Into egxila kuyo yonke imizamo yokudityaniswa, ukuvavanywa, ukupakishwa kunye namaxwebhu ukuyenza ibe yiprojekthi enokuphinda isebenze kunye nokwenza izisombululo ezahlukeneyo ngendlela eguqukayo.
Umsebenzi wokuqala weLibreCellular iya kuba kukumilisela Umdibaniso oqhubekayo (CI) iqonga. Oko kukuthi, yenza iqonga lophuhliso apho abaphuhlisi banokudibanisa utshintsho lwekhowudi kwindawo yokugcina kunye / okanye kuhlaziyo lwezixhobo.
Kuya kwenziwa iinzame zokugcwalisa isikhululo sesiseko se-SDR sokuhamba rhoqo koonomathotholo kunye nokunxibelelana ngocingo kwezi nethiwekhi, kunye nokwenza izixhobo eziyimfuneko zovavanyo, uthungelwano lokuhambisa iRF, kunye neebhanki ze Iimodem zeLTE zonxibelelwano. Nje ukuba zonke iziseko zokusebenza zisebenze, kugxilwe ekutshintsheni koku kungasentla: ukudityaniswa kwesitaki esiphathwayo, ukupakisha kunye namaxwebhu.
Iimpawu zeprojekthi
Iprojekthi yeLibreCellular yenziwe ngezixhobo zekhompyuter kunye nezixhobo zesoftware, njengoko benditshilo ngaphambili. Yonke into oyifunayo ukuze unikezele inkonzo esisiseko yedatha ye-LTE kunye nenkxaso yeminxeba yelizwi. Ukuze kwenzeke oku, ezi ndawo zilandelayo kufuneka zidityaniswe:
- Iqonga le-Hardware CI-Isikhululo sesiseko esineebhanki zemodem ze-LTE ngaphezulu kwenethiwekhi ye-RF, enomlinganiso weRF, ulawulo kunye nokusasazwa kwewotshi yereferensi.
- Ukuqwalaselwa kunye nokuvavanywa: iya kwenziwa ngokusetyenziswa kwesoftware Uvavanyo lweOsmoGSM, kunye nokugubungela kuya kwandiswa njengoko ukukhula kophuhliso. Oko kukuthi, iya kuphuma kwinkonzo esisiseko apho ezinye izixhobo zabasebenzisi beenkonzo ezinokunxibelelana nenkonzo epheleleyo ngakumbi ngeVoLTE yokufowunelwa kwelizwi ngokubulela kwinkqubo ye-IP yemultimedia (IMS).
- Isoftware ingqokelela: Zonke ezi zixhobo ziya kuhamba nesoftware evumela unxibelelwano.
- Iqonga lesalathiso sehardware-Lo iya kuba yeyona njongo iphambili, njengoko iya konga ixesha elininzi ukufumana abasebenzisi abatsha kwaye basebenze kwaye kuya kwenza kube lula ukujongana nemiba ye-Hardware.
- Ukusebenza kwe-baseband: kusetyenziswa i-SBC I-Intel NUC7i7DNBE ukuqhuba i-baseband kunye namaleya aphezulu esitaki esihambayo.
- Izixhobo ze-SDR: apho kukhethwe ipleyiti Ikalika yeSDR-USB.
- Interface RF: Ukuhamba rhoqo kwirediyo Iprojekthi iya kusetyenziswa IkalikaRFE eya kuthi ibonelele nge-multiband ye-RF ephambili yokungena kwi-LNA, PA kunye neephindaphindi. Ukongeza, ibonelela ngemveliso emiselweyo kwi-24 dBm kwimigca ehambayo 1, 2, 3, 4 kunye no-5.
- Bukela isalathisoIkloko yesalathiso eya kusetyenziswa yiLimeSDR, a Ukuchaneka kweGPS Leo Bodnar Mini ukuphucula uzinzo kunye nokuchaneka komqondiso.
Iinkcukacha ezithe xaxe - Iwebhu esemthethweni