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Ukuvela kweteknoloji ye-5G: ukusuka kwiibhendi eziphantsi-frequency ukuya kwi-C-band bandwidth
2024-07-20 13:42:04
Njengoko ihlabathi lilindele ngomdla ukuphunyezwa ngokubanzi kweteknoloji ye-5G, ubunzima beebhendi zayo ezahlukeneyo zefrikhwensi kunye nefuthe layo ekusebenzeni kwenethiwekhi ziya zibalaseliswa ngakumbi. Utshintsho olusuka kwi-4G LTE ukuya kwi-5G luzisa uchungechunge lwenkqubela phambili yezobuchwepheshe kunye nemingeni, ukusuka ekunciphiseni ukuphazamiseka kwi-leveraging fiber optic infrastructure kunye nokukwazi ukunyuka kwezantya zenethiwekhi.
Iibhendi ze-5G ezisezantsi, ezifana novavanyo lwe-600MHz, zifana nokusebenza kwi-4G LTE, kunye novavanyo olufana ne-PIM kunye nokuskena okubonisa iimpawu ezifanayo. Nangona kunjalo, umahluko omkhulu kwiziseko ezingundoqo, njengoko ukufakwa kwe-5G kuxhomekeke kwiziseko zefiber optic kuneentambo ze-coaxial. Olu tshintsho kwiziseko ezingundoqo luthetha utshintsho olusisiseko kwi-teknoloji esisiseko exhasa uthungelwano lwe-5G, ivula indlela yokuphucula ukusebenza kunye nokusebenza.
Njengoko iibhendi zefrikhwensi zifikelela kwi-3-3.5GHz nangaphaya, itekhnoloji efana ne-beamforming kunye ne-millimeter wave ithatha indawo esembindini, ebonisa ukubaluleka kwabo ekubumbeni ikamva le-5G. IBeamforming bubuchule bokwenza umqondiso osebenzisa ii-eriyali ezininzi ezibonelelwa yi-Massive MIMO ukwenza umqondiso ogxininisiweyo phakathi kwe-eriyali kunye nesixhobo esithile somsebenzisi, esinamandla okunciphisa uphazamiseko kunye nokuphucula ukugubungela umqondiso. Le teknoloji, idityaniswe nokusetyenziswa kwamaza e-millimeter, imele ukutsiba okukhulu phambili ekufuneni uqhagamshelwano olungenamthungo, olusebenzayo lwe-5G.
Ukuvela kweenethiwekhi ze-5G ezizimeleyo (SA) ziye zazisa utshintsho lweparadigm ekusombululeni ingxaki yokuphazamiseka. Ngelixa iindawo ze-4G LTE zijongene nokuphazamiseka kwezixhobo ezisetyenziswa ngokuqhelekileyo ezisebenza ngamaxesha afanayo njengeefowuni eziphathwayo, uthungelwano lwe-5G SA luthatha ithuba lokusebenzisa iibhendi zefrikhwensi ezingasetyenziswanga kwezi zixhobo, kunciphisa kakhulu ukuphazamiseka. Ukongeza, ukudityaniswa kwetekhnoloji ye-beamforming kwinethiwekhi ye-5G kuvumela abasebenzisi ukuba bathintele iintlobo ezithile zokuphazamiseka, kuqaqambisa amandla okuphucula ukuthembeka kwenethiwekhi kunye nokusebenza.
Enye yezinto eziphambili ezichaphazela isantya esinokwenzeka kunye nokusebenza kakuhle kothungelwano lwe-5G yi-bandwidth ye-C-band, ebonelela nge-bandwidth ebanzi ye-50MHz ukuya kwi-100MHz. Le bandwidth yandisiweyo ithembisa ukunciphisa ingxinano ye-band kunye nokwandisa kakhulu isantya sothungelwano, uqwalaselo olubalulekileyo kwixesha apho phantse wonke umsebenzi uqhutywa kwi-Intanethi. Impembelelo yale bandwidth eyongeziweyo idlulela kwiinkqubo ezahlukeneyo, kubandakanywa ubunyani bokwenyani, apho isantya sibaluleke kakhulu ekunikezeni amava omsebenzisi angenamthungo kunye nokuntywila.
Isishwankathelo, ukuguquka kweteknoloji ye-5G ukusuka kwiibhendi ze-frequency ezisezantsi ukuya kwi-C-band bandwidth ibonisa umzuzu obalulekileyo ekuphuhliseni unxibelelwano lomnxeba. Ukudibana kobuchwephesha obufana ne-beamforming, i-millimeter wave kunye nokusetyenziswa kweziseko zefiber optic kugxininisa amandla okuguqula amanethiwekhi e-5G. Njengoko ihlabathi lilungiselela ukwamkelwa okubanzi kwe-5G, isithembiso sokunyuka kwezantya, ukuphazamiseka okuncitshisiweyo kunye nokwandiswa kwe-bandwidth kwazisa ixesha elitsha loqhagamshelwano kunye nokutsha.