Isitishi esisisiseko

Isikhululo esisisiseko sisikhululo sikawonke-wonke sonxibelelwano oluphathwayo, oluluhlobo lwesikhululo sikanomathotholo. Ibhekisa kwisikhululo sikanomathotholo esihambisa ulwazi ngeetheminali zeefowuni eziphathwayo ngeziko lonxibelelwano oluphathwayo kwindawo ethile yosasazo lukanomathotholo. Iindidi zayo zinokwahlulwa ngokwezi ndidi zilandelayo:Izikhululo zesiseko seMacro, izikhululo ezisisiseko ezisasaziweyo, izikhululo zesiseko se-SDR, abaphindayo, njl.

Isikhululo sesiseko esikhulu

Izikhululo zesiseko esikhulu zibhekisa kwizikhululo ezisisiseko zothungelwano lwemiqondiso engenazingcingo zabaqhubi bonxibelelwano. Izikhululo zesiseko esikhulu zigubungela umgama omde, ngokubanzi i-35 km. Zilungele iindawo ezinetrafikhi ethe saa kwiindawo zasedolophini. Banokhuselo lwe-omnidirectional kunye namandla aphezulu. Izikhululo zesiseko ezincinci zisetyenziswa kakhulu kwizixeko, umgama ogubungelayo uncinci, uqhele ukuba yi-1-2km, kunye nokhuselo lomkhombandlela.Mizikhululo ze-icrobase zisetyenziswa kakhulu ukugubungela iimfama kwiindawo ezishushu zasedolophini. Ngokubanzi, amandla okuhambisa mancinci kakhulu, kwaye umgama wokugubungela ngama-500m okanye ngaphantsi. Amandla ezixhobo zezikhululo zesiseko se-macro ngokubanzi yi-4-10W, eguqulwa ibe ngumlinganiselo wesignali engenacingo ye-36-40dBm. Ukongeza inzuzo ye-20dBi ye-antenna ye-base station coverage yi-56-60dBm.

KusasazweBaseSunikezelo

Izikhululo ezisisiseko ezisasaziweyo sisizukulwana esitsha seemveliso zanamhlanje ezisetyenziselwa ukugqibezela ukugubungela uthungelwano. Olona phawu lwayo kukwahlula iyunithi yokusetyenzwa kwamaza kanomathotholo ukusuka kwisiseko sesiseko esikhulu sesiseko seyunithi yesiseko sebhendi kunye nokuyidibanisa ngefiber optical. Ingqikelelo engundoqo yesakhiwo sesikhululo esisasaziweyo kukwahlula iyunithi yesiseko sesiseko sesiseko sesiseko sesiseko seyunithi (BBU) kunye neyunithi yokusetyenzwa kwamaza kanomathotholo (RRU). Ezi zimbini ziqhagamshelwe ngefiber optical. Ngexesha lokusasazwa kwenethiwekhi, iyunithi yokucubungula i-baseband, inethiwekhi engundoqo, kunye nezixhobo zokulawula inethiwekhi engenazingcingo zigxininiswe kwigumbi lekhompyuter kwaye ziqhagamshelwe kwiyunithi ekude yerediyo efakwe kwindawo ecwangcisiweyo ngefiber optical ukugqiba ukugubungela inethiwekhi, ngaloo ndlela kuncitshiswa iindleko zokwakha kunye nokugcinwa. kunye nokuphucula ukusebenza kakuhle.

Isikhululo esisisiseko esisasazwayo sahlula izixhobo zesiseko zesiseko se-macro kwiimodyuli ezimbini ezisebenzayo ngokwemisebenzi. I-baseband, ulawulo oluphambili, ukuhanjiswa, iwashi, kunye neminye imisebenzi yesikhululo esisezantsi ihlanganiswe kwimodyuli ebizwa ngokuba yiyunithi ye-baseband BBU (i-Base Band Unit). Iyunithi incinci ngobukhulu kwaye indawo yokufakela iguquguquka kakhulu; i-radio frequency frequency ephakathi njenge-transceiver kunye ne-amplifier yamandla idityaniswe kwenye ebizwa ngokuba yimodyuli yerediyo yerediyo ekude, kunye neyunithi yerediyo yerediyo i-RRU (iRemote Radio Unit) ifakwe kwisiphelo se-eriyali. Iyunithi yefrikhwensi yerediyo kunye neyunithi ye-baseband idityaniswe ngeefiber ze-optical ukwenza isisombululo esitsha sesikhululo esisasazwayo.

SDRBaseSunikezelo

I-SDR (i-Software Definition Radio) "yi-software echazwe kwirediyo", eyona iteknoloji yonxibelelwano losasazo ngaphandle kwamacingo, ngokuchanekileyo, yindlela yokuyila okanye ingcamango yoyilo. Ngokukodwa, i-SDR ibhekisa kwiprothokholi yonxibelelwano engenazingcingo esekwe kwinkcazo yesoftware endaweni yokuphunyezwa kwehardware ezinikeleyo. Okwangoku kukho ezintathu eziphambili ze-SDR ze-platform ye-hardware: i-GPP-based based SDR structure, i-Field Programmable Gate Array (FPGA)-based SDR (Non-GPP) isakhiwo, kunye ne-GPP + FPGA / SDP-based based hybrid SDR structure. Ulwakhiwo lwe-SDR olusekelwe kwi-GPP lulolu hlobo lulandelayo.

Isikhululo sesiseko se-SDR yinkqubo yesikhululo esisisiseko esiyilwe kwaye siphuhliswe ngokusekelwe kwingcamango ye-SDR. Olona phawu lwayo olukhulu kukuba iyunithi yayo yefrikhwensi yerediyo inokucwangciswa kwaye ichazwe ngokutsha, kwaye inokuqonda ulwabiwo olukrelekrele lwe-spectrum kunye nenkxaso yeendlela ezininzi zenethiwekhi, oko kukuthi, inokusetyenziswa kwisixhobo esinye seqonga. Itekhnoloji yokuphumeza iimodeli ezahlukeneyo zenethiwekhi, njengoko kuboniswe kumzobo ongezantsi, inethiwekhi ye-GSM + LTE iphunyezwa kwisethi efanayo yezixhobo.

RP ophindayo

I-RP ephindayo: I-RP ephindayo yenziwe ngamacandelo okanye iimodyuli ezinjengeeriyali,RF duplexers, iiamplifiers ezinengxolo ephantsi, abaxubi, ESCaumqhubis, izihluzi, i-amplifiers yamandla, njl., kuquka i-uplink kunye ne-downlink amplification links.

Umgaqo osisiseko womsebenzi wayo ngulo: ukusebenzisa i-eriyali eya phambili (i-antenna yomxhasi) ukufumana isiginali ye-downlink yesikhululo esisezantsi kwisiphindaphindi, ukukhulisa isiginali eluncedo ngesandisi-lizwi esiphantsi, ukucinezela umqondiso wengxolo kwisiginali, kwaye ukuphucula umlinganiselo wesignali ukuya kwingxolo (S/N). ); emva koko iguqulelwe phantsi ibe ngumqondiso wefrikhwensi ephakathi, ihluzwe sisihluzo, ikhuliswe ngamaza aphakathi, kwaye emva koko iguqulelwe kwifrikhwensi yerediyo, ikhuliswe sisixhobo sokukhulisa amandla, kwaye idluliselwe kwisikhululo esiphathwayo nge-eriyali engasemva (ukudluliselwa kwakhona). i-eriyali); Kwangaxeshanye, i-eriyali engasemva isetyenzisiwe I-signal ye-uplink esuka kwisikhululo esihambayo ifunyenwe kwaye iqhutywe yikhonkco yokukhulisa i-uplink ecaleni kwendlela echaseneyo: oko kukuthi, idlula kwi-amplifier yesandi esisezantsi, i-converter ephantsi, ihluzo, i-intermediate. iamplifier, up-converter, kunye neamplifier yamandla phambi kokuba idluliselwe kwisiseko sesikhululo. Oku kuphumeza unxibelelwano lweendlela ezimbini phakathi kwesikhululo esisisiseko kunye nesikhululo esiphathwayo.

I-RP ephindaphindayo yimveliso yokudlulisa umqondiso ngaphandle kwamacingo. Iimpawu eziphambili zokulinganisa umgangatho wokuphindaphinda ziquka iqondo lobukrelekrele (njengokubeka iliso kude, njl.), IP3 ephantsi (ngaphantsi -36dBm ngaphandle kokugunyaziswa), into ephantsi yomsindo (NF), ukuthembeka komatshini jikelele, iinkonzo ezilungileyo zobugcisa. , njl.

I-RP repeater sisixhobo esidibanisa imigca yenethiwekhi kwaye sihlala sisetyenziselwa ukuhanjiswa kwe-bidirectional yeempawu ezibonakalayo phakathi kweendawo ezimbini zenethiwekhi.

Ukuphinda

Isiphindaphinda sesona sixhobo silula sonxibelelwano lwenethiwekhi. Ngokuyintloko igqibezela imisebenzi yomaleko womzimba. Inoxanduva lokudlulisa ulwazi kancinci kancinci kumaleko womzimba weendawo ezimbini kunye nokugqiba ikopi yomqondiso, uhlengahlengiso, kunye nemisebenzi yokukhulisa ukwandisa ubude bothungelwano.

Ngenxa yokulahlekelwa, amandla omqondiso ahanjiswe kumgca uya kuthotywa ngokuthe ngcembe. Xa i-attenuation ifikelela kwinqanaba elithile, kuya kubangela ukuphazamiseka komqondiso, ngaloo ndlela kukhokelela kwiimpazamo zokwamkela. Abaphindayo bayilelwe ukusombulula le ngxaki. Igqiba uxhulumaniso lwemigca yomzimba, ikhulise isignali enqabileyo, kwaye igcine ifana nedatha yokuqala.

Xa kuthelekiswa nezikhululo ezisisiseko, ineenzuzo zesakhiwo esilula, utyalo-mali oluncinci, kunye nofakelo olufanelekileyo. Inokusetyenziswa ngokubanzi kwiindawo ezingaboniyo kunye neendawo ezibuthathaka ekunzima ukuzigubungela, ezifana neendawo zokuthenga, iihotele, izikhululo zeenqwelo-moya, izikhululo, izitishi, amabala emidlalo, iiholo zokuzonwabisa, i-subways, itonela, njl njl. koohola beendlela kunye neziqithi ukuphucula umgangatho wonxibelelwano kunye nokusombulula iingxaki ezinjengeefowuni ezihlayo.

Ukubunjwa kwabaphindaphinda unxibelelwano lweselula kuyahluka ngokuxhomekeke kuhlobo.

(1)umphindi ongenazingcingo

Isignali ye-downlink ifunyenwe kwisikhululo sesiseko kwaye ikhuliswe ukugubungela ulwalathiso lomsebenzisi; isignali ye-uplink ifunyenwe kumsebenzisi kwaye ithunyelwe kwisikhululo sesiseko emva kokukhulisa. Ukukhawulela ibhendi, aband-pass filteryongezwa.

(2)Ukuphindaphinda okuKhethekileyo okuHlaziyayo

Ukukhetha i-frequency, i-uplink kunye ne-downlink frequencies iphantsi-iguqulelwe kwi-intermediate frequency. Emva kokuba kukhethwe i-frequency kunye ne-band-limiting process yenziwa, i-up-link kunye ne-downlink frequencies ibuyiselwa ngokuguqulwa kwe-up-conversion.

(3)Isikhululo sokuphindaphinda ifayibha yokuhanjiswa

Umqondiso ofunyenweyo uguqulwa ube ngumqondiso we-optical ngokusebenzisa ukuguqulwa kwe-photoelectric, kwaye emva kokudluliselwa, uphawu lombane lubuyiselwa ngokuguqulwa kwe-electro-optical kwaye emva koko ithunyelwe.

(4)isiphindaphindi sosasazo lwe-frequency shift

Guqula i-frequency efunyenweyo kwi-microwave, emva koko uyiguqulele kwi-frequency efunyenwe ekuqaleni emva kokuhanjiswa, yandise, kwaye uyithumele ngaphandle.

(5)Ukuphinda kwangaphakathi

Ukuphindaphinda kwangaphakathi sisixhobo esilula, kwaye iimfuno zaso zihluke kwezo zophinda zangaphandle. Ukubunjwa kwabaphindaphinda unxibelelwano lweselula kuyahluka ngokuxhomekeke kuhlobo.

Njengomvelisi osungulayo weAmacandelo e-RF, singakwazi ukuyila kunye nokuvelisa iindidi ezahlukeneyo zamacandelo kwizikhululo ezisisiseko, ke ukuba ufuna ukwazi ngakumbi malunga namacandelo e-RF microwave, wamkelekile ukujonga ulwazi kwiwebhusayithi yeJingxin.:https://www.cdjx-mw.com/.

Iinkcukacha ezingakumbi zemveliso zinokubuzwa @sales@cdjx-mw.com.