Thola uhlelo oluphelele lwekhambi lenethiwekhi ukuze usondeze.
Ngabe isiginali yeselula ivelaphi?
Muva nje i-linratekk yathola uphenyo kwiklayenti, ngesikhathi sokuxoxa, wabuza umbuzo:Ngabe isiginali sefoni yethu ephathekayo ivelaphi?
Ngakho-ke lapha sithanda ukukuchazela isisekelo mayelana naso.
Okokuqala nje,Kusho ukuthini isiginali yeselula?
Umakhalekhukhwini empeleni uhlobo lweigagasi le-electromagneticlokho kudluliswa ngesikhathi sesiteshi sesisekelo kanye nomakhalekhukhwini. Kubizwa nangokuthiumthuthiembonini yokuxhumana ngocingo.
Kuyaguqukaamasiginali ezwiku-igagasi le-electromagneticAmasiginali alungele ukusakazwa emoyeni ukufeza inhloso yokudluliselwa kwezokuxhumana.
Q1. Ngabe isiginali yefoni ephathekayo ivelaphi?
Ngikholwa ukuthi abantu abaningi sebezwile ngala magama womabiliIsiteshi sesisekelo noma isiteshi sesiginali (Umbhoshongo), kepha empeleni yinto eyodwa. Isiginali yefoni ephathekayo idluliselwa ngale nto sibiza isiteshi sezisekelo.
Q2. Yini i-electromagnetic wave?
Ukubeka nje, amaza we-electromagnetic amagagasi we-oscillating partery amagagasi athathwe futhi akhishwe esikhaleni ngamasimu kagesi nawamazibuthe asesigabeni kanye ne-perpendicular komunye nomunye. Ziyizinkambu ze-electromagnetic ezisakaza ngesimo samagagasi futhi zine-wave-parde-nhlayiya. Ijubane lokusakazeka: Ijubane lezinga elikhanyayo, akukho okuphakathi okuphakathi okudingekayo (igagasi lomsindo lidinga okuphakathi). Amagagasi we-electromagnetic amunwa futhi aboniswe lapho ehlangana nensimbi, futhi abuthakathaka lapho evinjelwe yizakhiwo, futhi abuthakathaka lapho kunomoya, kunemvula. Okufushane kwe-wavelength futhi kukhuphuka imvamisa yamagagasi e-electromagnetic, idatha ethe xaxa idluliselwa ngesikhathi esisodwa.
Q3. Singakwenza kanjani isiginali?
Njengamanje zikhona izindlela ezimbili. Eyokuqala ukwazisa opharetha wakho ukuthi isiginali yendawo asilungile, futhi umnyango we-Network Optimization uzohamba ayohlola amandla wesiginali. Uma amandla wesiginali engahlangabezani nezidingo, opharetha uzokwakha isiteshi esisesisekelo lapha ukuthuthukisa inethiwekhi yakho.
Eyokuqala ukusebenzisa i-amplifier yesiginali yeselula. Isimiso saso ukusebenzisa i-antenna phambili (i-donor antenna) ukuthola isibonakaliso se-DownLink esiteshini sesisekelo esiphindaphindiwe, sicindezele isibonakaliso somsindo esignali, futhi sithuthukise isilinganiso se-Signal-to-Noise); Ngemuva kwalokho kuguqulwe phansi ku-Imvamisa Ephakathi imvamisa, okuhlungiwe yisihlungi, kukhuliswe imvamisa ephakathi nendawo, bese kushukunyiswa amandla futhi kuguqulwe ku-amplifier ye-antenna yasemuva (futhi kudluliselwe i-antenna engemuva); Ngasikhathi sinye, isiginali ye-Uplink yesiteshi eselula itholwa yi-antenna engemuva, futhi icutshungulwe yisixhumanisi se-amplink amplification eceleni kwendlela ehlukile:
Ama-amplifiers wezimpawu zeselula angasetshenziswa ezindaweni eziminyene zasemadolobheni, amafreyimu asemadolobheni kanye namadolobha asemakhaya, nasezindaweni zasemakhaya. Kuyinto elula kakhulu. Yikuphi ukukhetha okuthandayo?
I-Linchuang yibhizinisi eliphakeme lobuchwepheshe elisebenza abasebenzisi abangaphezu kwesigidi esingu-155 emazweni angu-155 nasezifundeni ezizungeze umhlaba. Emkhakheni wokuxhumana ngeselula, siphikelela ekuthuthukiseni kabusha izidingo zamakhasimende ezidinga ukusiza amakhasimende ukuxazulula izidingo zokuxhumana zesiginali! I-Linchuang isinikele ekubeni ngumholi embonini yokubhuka kwesiginali ebuthakathaka, ukuze kungabi namabala angaboni emhlabeni, futhi wonke umuntu angakwazi ukuxhumana ngaphandle kwezithiyo!
Ungathola ukukhetha okuningi lapha ku-lintratek
Isikhathi sePosi: Nov-23-2022