Isiteshi esiyisisekelo
Isiteshi esiyisisekelo yisiteshi somphakathi sokuxhumana ngomakhalekhukhwini, okuwuhlobo lwesiteshi somsakazo. Kubhekiselwa esiteshini se-transceiver somsakazo esidlulisa ulwazi ngamatheminali omakhalekhukhwini ngokusebenzisa isikhungo sokushintshwa komakhalekhukhwini endaweni ethile yomsakazo. Izinhlobo zayo zingahlukaniswa ngezigaba ezilandelayo:Iziteshi eziyisisekelo eziningi, iziteshi eziyisisekelo ezisabalalisiwe, iziteshi eziyisisekelo ze-SDR, abaphindayo, njll.
Isiteshi se-macro base
Iziteshi ze-Macro base zibhekisela eziteshini eziyisisekelo zokudlulisa isignali ezingenantambo zabaqhubi bezokuxhumana. Iziteshi ze-macro base zihlanganisa ibanga elide, ngokuvamile i-35 km. Zifanele izindawo ezinezimoto ezihlakazekile ezindaweni ezingaphansi kwedolobha. Banokufakwa kwe-omnidirectional namandla aphezulu. Iziteshi ezincane eziyisisekelo zisetshenziswa kakhulu emadolobheni, ibanga lokumboza lincane, imvamisa li-1-2km, elinomkhakha oqondile.Miziteshi ze-icrobase zisetshenziselwa kakhulu ukumboza abantu abangaboni ezindaweni ezishisayo zasemadolobheni. Ngokuvamile, amandla okudlulisa mancane kakhulu, futhi ibanga lokumboza lingama-500m noma ngaphansi. Amandla wemishini yeziteshi ezinkulu eziyisisekelo ngokuvamile angu-4-10W, aguqulwa abe isilinganiso sesignali engenantambo engu-36-40dBm. Ukwengeza inzuzo ye-20dBi ye-base station coverage antenna ngu-56-60dBm.
KusatshalalisweBaseStation
Iziteshi eziyisisekelo ezisabalalisiwe ziyisizukulwane esisha semikhiqizo yesimanje esetshenziselwa ukuqedela ukufakwa kwenethiwekhi. Isici sayo esiyinhloko siwukuhlukanisa iyunithi yokucubungula ifrikhwensi yomsakazo kusukela kuyunithi yokucubungula ye-baseband evamile yesiteshi esikhulu esikhulu bese uyixhuma nge-optical fiber. Umqondo oyinhloko wesakhiwo sesiteshi esisabalalisiwe uwukuhlukanisa iyunithi yokucubungula ye-baseband yesizinda esikhulu sendabuko (BBU) kanye neyunithi yokucubungula ifrikhwensi yomsakazo (RRU). Zombili zixhunywe nge-fiber optical. Ngesikhathi sokuthunyelwa kwenethiwekhi, iyunithi yokucubungula i-baseband, inethiwekhi eyinhloko, kanye nemishini yokulawula inethiwekhi engenantambo kugxilwe egumbini lekhompyutha futhi kuxhunywe kuyunithi ekude yefrikhwensi yomsakazo etshalwe endaweni ehleliwe nge-optical fiber ukuze kuqedelwe ukumbozwa kwenethiwekhi, ngaleyo ndlela kuncishiswe izindleko zokwakha nezokulungisa. kanye nokwenza ngcono ukusebenza kahle.
Isiteshi sesisekelo esisabalalisiwe sihlukanisa imishini yesiteshi sesisekelo esikhulu esijwayelekile sibe amamojula amabili asebenzayo ngokuya ngemisebenzi. I-baseband, isilawuli esiyinhloko, ukudlulisa, iwashi, neminye imisebenzi yesiteshi esiyisisekelo kuhlanganiswe kumojula ebizwa ngokuthi iyunithi ye-baseband BBU (Base Band Unit). Iyunithi incane ngosayizi futhi indawo yokufaka iguquguquka kakhulu; ifrikhwensi yomsakazo webanga eliphakathi njenge-transceiver kanye neamplifier yamandla ihlanganiswe kwenye ebizwa nge-remote radio frequency module, kanye neyunithi yefrikhwensi yomsakazo i-RRU (Remote Radio Unit) ifakwe ekugcineni kothi. Iyunithi yefrikhwensi yomsakazo kanye neyunithi ye-baseband ixhunywe ngama-optical fibers akhe isisombululo esisha sesiteshi sesisekelo esisabalalisiwe.
I-SDRBaseStation
I-SDR (I-Software Definition Radio) "i-software echazwe umsakazo", okuwubuchwepheshe bokuxhumana bokusakaza okungenantambo, ngokunembe kakhulu, kuyindlela yokuklama noma umqondo wokuklama. Ikakhulukazi, i-SDR isho iphrothokholi yokuxhumana engenantambo esekelwe encazelweni yesofthiwe esikhundleni sokusebenza okuzinikele kwehadiwe. Okwamanje kunezinhlaka ezintathu ezijwayelekile zengxenyekazi yezingxenyekazi zekhompuyutha ze-SDR: Isakhiwo se-SDR esisekelwe ku-GPP, isakhiwo se-Field Programmable Gate Array (FPGA) esisekelwe ku-SDR (Non-GPP), kanye nesakhiwo se-GPP + FPGA/SDP-based hybrid SDR. Isakhiwo se-SDR esisekelwe ku-GPP simi kanje.
Isiteshi sesisekelo se-SDR siwuhlelo lwesiteshi oluyisisekelo olwakhiwe futhi lwathuthukiswa ngokusekelwe kumqondo we-SDR. Isici sayo esikhulu ukuthi iyunithi yayo yefrikhwensi yomsakazo ingahlelwa futhi ichazwe kabusha, futhi ingakwazi ukubona ukwabiwa okuhlakaniphile kwe-spectrum nokusekelwa kwamamodi amaningi enethiwekhi, okungukuthi, ingasetshenziswa emshinini ofanayo wesikhulumi. Ubuchwepheshe bokusebenzisa amamodeli enethiwekhi ahlukene, njengoba kuboniswe esithombeni esingezansi, inethiwekhi ye-GSM+LTE isetshenziswa kusethi efanayo yemishini.
RP ophindayo
Isiphindaphinda se-RP: Isiphindaphinda se-RP sakhiwe izingxenye noma amamojula afana nezimpondo,I-RF dui-plexers, ama-amplifiers anomsindo ophansi, izixube, ESCai-ttenuators, izihlungi, izikhulisamandla, njll., kufaka phakathi izixhumanisi zokukhulisa i-uplink ne-downlink.
Umgomo oyisisekelo womsebenzi wayo: ukusebenzisa i-antenna eya phambili (i-antenna yomnikeli) ukuthola isignali ye-downlink yesiteshi sesisekelo kusiphindaphinda, ukhulise isignali ewusizo nge-amplifier yomsindo ophansi, ucindezele isignali yomsindo esignali, futhi thuthukisa isilinganiso sesignali-kuya-noise (S/N). ); bese iguqulelwa phansi ibe isignali yefrikhwensi ephakathi, ihlungwe ngesihlungi, ikhuliswe ifrikhwensi ephakathi, bese iguqulelwa phezulu ibe ifrikhwensi yomsakazo, ikhuliswe nge-amplifier yamandla, bese idluliselwa esiteshini esihambayo ngothi olungemuva (ukudluliselwa kabusha). uthi); ngasikhathi sinye, kusetshenziswa i-antenna yangemuva Isignali ye-uplink evela esiteshini seselula yamukelwe futhi icutshungulwa isixhumanisi sokukhulisa i-uplink endleleni ephambene: okungukuthi, idlula ku-amplifier yomsindo ophansi, isiguquli esiphansi, isihlungi, esiphakathi. i-amplifier, i-up-converter, nesikhulisi samandla ngaphambi kokudluliselwa esiteshini esiyisisekelo. Lokhu kufeza ukuxhumana okubili phakathi kwesiteshi esiyisisekelo kanye nesiteshi esihambayo.
I-RP repeater ingumkhiqizo wokudlulisa isignali engenantambo. Izinkomba eziyinhloko zokulinganisa ikhwalithi yesiphindaphinda zihlanganisa izinga lobuhlakani (njengokuqapha okukude, njll.), i-IP3 ephansi (ngaphansi kuka -36dBm ngaphandle kokugunyazwa), isici somsindo ophansi (NF), ukwethembeka okuphelele komshini, izinsizakalo ezinhle zobuchwepheshe. , njll.
I-RP repeater iyithuluzi elixhuma imigqa yenethiwekhi futhi livame ukusetshenziselwa ukudlulisela kabili amasignali abonakalayo phakathi kwamanodi amabili enethiwekhi.
Ophindayo
Okuphindayo kuyithuluzi elilula lokuxhumanisa inethiwekhi. Ngokuyinhloko iqeda imisebenzi yongqimba olubonakalayo. Inesibopho sokudlulisa ulwazi kancane kancane kungqimba olubonakalayo lwamanodi amabili nokuqedela ikhophi yesiginali, ukulungisa, nemisebenzi yokukhulisa ukwandisa ubude benethiwekhi.
Ngenxa yokulahlekelwa, amandla esignali adluliswa kulayini azoncipha kancane kancane. Uma ukuncishiswa kufinyelela ezingeni elithile, kuzodala ukuhlanekezela kwesignali, ngaleyo ndlela kuholele emaphutheni okwamukela. Iziphindaphinda zenzelwe ukuxazulula le nkinga. Iqedela ukuxhumeka kwemigqa ebonakalayo, ikhulise isignali encishisiwe, futhi iyigcine ifana nedatha yasekuqaleni.
Uma iqhathaniswa neziteshi eziyisisekelo, inezinzuzo zesakhiwo esilula, ukutshalwa kwezimali okuncane, nokufakwa okulula. Ingasetshenziswa kakhulu ezindaweni eziyizimpumputhe nasezindaweni ezibuthakathaka okunzima ukuzihlanganisa, njengezinxanxathela zezitolo, amahhotela, izikhumulo zezindiza, amatheku, iziteshi, izinkundla, amahholo okuzijabulisa, imigwaqo engaphansi, imigudu, njll. Ingasetshenziswa ezindaweni ezihlukahlukene njenge imigwaqo emikhulu neziqhingi ukuthuthukisa ikhwalithi yokuxhumana nokuxazulula izinkinga ezifana nezingcingo eziyehlisiwe.
Ukwakheka kokuphinda ukuxhumana kweselula kuyahlukahluka kuye ngohlobo.
(1)i-wireless repeater
Isignali ye-downlink itholwa esiteshini esiyisisekelo futhi ikhuliswe ukumboza isiqondiso somsebenzisi; isignali ye-uplink itholwa kumsebenzisi futhi ithunyelwa esiteshini esiyisisekelo ngemuva kokukhulisa. Ukukhawulela ibhendi, aisihlungi se-band-passyengezwa.
(2)I-Frequency Selection Repeater
Ukuze ukhethe i-frequency, amafrikhwensi e-uplink ne-downlink aguqulwa abe yi-intermediate frequency. Ngemva kokukhethwa kwefrikhwensi kanye nenqubo yokukhawulela ibhendi yenziwe, i-up-link kanye ne-downlink frequencies ibuyiselwa ngokuguqulela phezulu.
(3)Isiteshi esiphindaphindayo sokudlulisa i-fiber optical
Isignali etholiwe iguqulwa ibe isignali ye-optical ngokusebenzisa ukuguqulwa kwe-photoelectric, futhi ngemva kokudlulisela, isignali kagesi ibuyiselwa ngokuguqulwa kwe-electro-optical bese ithunyelwa.
(4)i-frequency shift transmission repeater
Guqula ifrikhwensi eyamukelwe ibe yi-microwave, bese yehlisa imvamisa eyamukelwe ekuqaleni ngemva kokudlulisela, ikhulise, futhi uyithumele ngaphandle.
(5)Isiphindaphinda sasendlini
I-repeater yangaphakathi iyithuluzi elilula, futhi izidingo zalo zihlukile kulezo eziphindaphindayo zangaphandle. Ukwakheka kokuphinda ukuxhumana kweselula kuyahlukahluka kuye ngohlobo.
Njengomkhiqizi omusha weIzingxenye ze-RF, singaklama futhi sikhiqize izinhlobo ezahlukene zezingxenye zeziteshi eziyisisekelo, ngakho-ke uma ufuna ukwazi okwengeziwe ngezingxenye ze-RF microwave, wamukelekile ukuhlola ulwazi kuwebhusayithi ye-Jingxin.:https://www.cdjx-mw.com/.
Imininingwane yomkhiqizo eyengeziwe ingabuzwa @sales@cdjx-mw.com.
Isikhathi sokuthumela: Dec-18-2023