Nakuba i-4G ilayisensi e-China, ukwakhiwa kwenethiwekhi enkulu kusanda kuqala.Ngokubhekana nokukhula okushisayo kwedatha yeselula, kuyadingeka ukuthuthukisa ngokuqhubekayo umthamo wenethiwekhi kanye nekhwalithi yokwakhiwa kwenethiwekhi.Kodwa-ke, ukuhlakazwa kwemvamisa ye-4G, ukwanda kokuphazanyiswa, kanye nesidingo sokwabelana ngesayithi neziteshi eziyisisekelo ze-2G kanye ne-3G kuqhuba ukuthuthukiswa kwe-antenna yesiteshi esisekelweni ekuqondeni kokuhlanganisa okuphezulu, umkhawulokudonsa obanzi kanye nokulungiswa okuguquguqukayo.
Umthamo wenethiwekhi ye-4G.
Isendlalelo esihle sokumboza inethiwekhi nogqinsi oluthile lwesendlalelo somthamo yizisekelo ezimbili zokunquma ikhwalithi yenethiwekhi.
Inethiwekhi kazwelonke entsha kufanele icabangele ukwakhiwa kwesendlalelo samandla enethiwekhi ngenkathi iqedela okuhlosiwe kokuhlanganisa."Ngokuvamile, kunezindlela ezintathu kuphela zokuthuthukisa umthamo wenethiwekhi," u-Wang Sheng, umqondisi wezokuthengisa we-China wireless network solutions we-wireless unit yebhizinisi le-CommScope, etshela izindaba ze-electronic zaseChina.
Enye iwukusebenzisa amafrikhwensi amaningi ukwenza umkhawulokudonsa ube banzi.Isibonelo, i-GSM ekuqaleni yayinefrikhwensi engu-900MHz kuphela.Kamuva, abasebenzisi banda futhi imvamisa ye-1800MHz yengezwa.Manje amafrikhwensi e-3G kanye ne-4G asengaphezulu.Imvamisa ye-TD-LTE ye-China Mobile inamabhendi amathathu, kanti imvamisa ye-2.6GHz isetshenzisiwe.Abanye abantu embonini bakholelwa ukuthi lokhu kuwumkhawulo, ngoba ukuncishiswa kwe-high-frequency kuzoba kubi nakakhulu, futhi okokufaka nokuphuma kwemishini akulingani.Okwesibili ukukhulisa inani leziteshi eziyisisekelo, okubuye kube yindlela esetshenziswa kakhulu.Njengamanje, ukuminyana kweziteshi eziyisisekelo emadolobheni amakhulu naphakathi nendawo kuncishisiwe kusuka esilinganisweni sesiteshi esisodwa ngekhilomitha kuya esiteshini esisodwa esingamamitha angama-200-300.Okwesithathu ukuthuthukisa ukusebenza kahle kwe-spectrum, okuyisiqondiso saso sonke isizukulwane sobuchwepheshe bezokuxhumana ngomakhalekhukhwini.Njengamanje, ukusebenza kahle kwe-spectrum kwe-4G kuphakeme kakhulu, futhi sekufinyelele izinga lokuxhumanisa eliphansi lika-100m e-Shanghai.
Ukuba nenethiwekhi enhle kanye nogqinsi oluthile lwesendlalelo samandla kuyizisekelo ezimbili ezibalulekile zenethiwekhi.Ngokusobala, indawo ye-China Mobile ye-TD-LTE iwukwenza inethiwekhi yekhwalithi ephezulu futhi ime phezulu kwemakethe ye-4G enolwazi lomsebenzisi olusezingeni eliphezulu."Sibambe iqhaza ekwakhiweni kwamanethiwekhi amaningi we-240 LTE emhlabeni.""Ngokokuhlangenwe nakho kwe-CommScope, kunezici ezinhlanu ekwakhiweni kwenethiwekhi ye-LTE. Eyokuqala ukuphatha umsindo wenethiwekhi; okwesibili ukuhlela nokulawula umkhakha ongenazintambo; okwesithathu ukwenza inethiwekhi ibe yisimanje; okwesine ukwenza a umsebenzi omuhle esignali yokubuyisela, okungukuthi, umkhawulokudonsa wesignali ye-uplink kanye nesignali ye-downlink kufanele ibe banzi ngokwanele; okwesihlanu ukwenza umsebenzi omuhle wokumbozwa kwangaphakathi kanye nokuhlanganisa ngaphansi kwendawo ekhethekile yezindawo
Imininingwane yobuchwepheshe yokuhlolwa kokulawulwa komsindo.
Kuyinkinga yangempela ukuphatha izinga lomsindo nokwenza abasebenzisi bonqenqema lwenethiwekhi babe nokufinyelela ngesivinini esiphezulu.
Ihlukile ekuthuthukisweni kwesignali ye-3G ngokwandisa amandla okudlulisela, inethiwekhi ye-4G izoletha umsindo omusha ngokuthuthukiswa kwesignali."Isici senethiwekhi ye-4G ukuthi umsindo awuthinti nje kuphela umkhakha ohlanganiswe yi-antenna, kodwa futhi uthinta imikhakha ezungezile. Isibonelo, kuzodala ama-handoffs athambile, okuholela ekulahlekelweni kwepakethe ephezulu. Ukusebenza ukuthi i izinga lokudluliswa kwedatha lincishisiwe, ulwazi lomsebenzisi luyancishiswa, futhi imali engenayo iyehla."U-Wang Sheng uthe, "lapho inethiwekhi ye-4G iqhelelene nesiteshi sesisekelo, izinga ledatha liyancipha, futhi uma inethiwekhi ye-4G isondela kumthumeli, abasebenzisi bezinsiza eziningi bangathola. Sidinga ukulawula izinga lomsindo, ngakho ukuthi unqenqema lwenethiwekhi lungathola ukufinyelela ngesivinini esikhulu, okuyinkinga okudingeka siyixazulule ngempela."Ukuze uxazulule le nkinga, kunezidingo eziningana: okokuqala, umkhawulokudonsa wengxenye ye-RF kufanele ube obanzi ngokwanele;okwesibili, ukusebenza kwemishini yayo yonke inethiwekhi yefrikhwensi yomsakazo kufanele kube kuhle ngokwanele;okwesithathu, i-bandwidth yesignali ye-uplink ebuyisiwe kufanele ibe banzi ngokwanele.
Kunethiwekhi yendabuko ye-2G, ukumbozwa kwenethiwekhi kwamaseli esiteshi sesisekelo kukhulu uma kuqhathaniswa.Omakhalekhukhwini bangathola amasignali avela eziteshini ezahlukene.Izingcingo eziphathwayo ze-2G zizokhiya ngokuzenzakalelayo esiteshini esinesignali enamandla kakhulu, zinganaki ezinye.Ngoba ngeke ishintshe njalo, ngeke ibangele noma yikuphi ukuphazamiseka kuseli elilandelayo.Ngakho-ke, kunethiwekhi ye-GSM, kunezindawo ezigqagqene eziyi-9 kuye kwezingu-12 ezingabekezelelwa.Kodwa-ke, esikhathini se-3G, ukumbozwa okweqile kwenethiwekhi kuzoba nomthelela omkhulu kumthamo wokucubungula wesistimu.Manje, i-antenna ene-engeli evundlile engu-65 degree isetshenziselwa ukumbozwa kwemikhakha emithathu.Ukufakwa kwezingxenye ezintathu ze-LTE kudinga ukuthi i-antenna esebenza kahle yenziwe ngendlela efanayo neye-3G."Lokho okubizwa ngokuthi i-antenna esebenza kahle kakhulu kusho ukuthi uma wenza ukumbozwa kwe-antenna engu-65 degree, ukumbozwa ezinhlangothini zombili zenethiwekhi kuncipha ngokushesha okukhulu, okwenza indawo egqagqene phakathi kwamanethiwekhi ibe mncane. Ngakho-ke, singabona ngokucacile ukuthi amanethiwekhi e-LTE anomthamo omkhulu futhi izidingo eziphezulu zemishini."Wang Sheng wathi.
I-antenna ye-frequency division ezimele eguquleka ngogesi iya ibaluleka kakhulu.
Kuyadingeka ukulawula unqenqema lwe-wave wave yenethiwekhi ngokunembile ukuze unciphise ukuphazamiseka kwesiteshi.Indlela engcono kakhulu ukubona isilawuli se-antenna esikude.
Ukuze uxazulule ukulawulwa kokuphazamiseka kwenethiwekhi, ikakhulukazi kuncike ezicini eziningana: okokuqala, ukuhlela inethiwekhi, ukushiya umkhawulo okwanele emvamisa;okwesibili, izinga ledivayisi, inqubo ngayinye yokwakha kufanele ilawulwe kahle;okwesithathu, izinga lokufaka."Sangena eChina ngo-1997 futhi senza amacala amaningi asebenzayo. Ekolishi i-Andrew, esebenza ngokukhethekile ngama-antenna, sizokwenza uqeqesho lokubafundisa ukufaka nokusebenzisa imikhiqizo yethu engenazintambo. Ngesikhathi esifanayo, sinethimba yenza izixhumi nama-antenna. " Imikhiqizo engenantambo, ikakhulukazi imikhiqizo yangaphandle, inendawo yokusebenza embi kakhulu kulo lonke uhlelo lwezokuxhumana, ebhekene nomoya, ilanga, imvula, izinga lokushisa eliphezulu nezinga lokushisa eliphansi, ngakho-ke izidingo zayo ziphezulu kakhulu."Imikhiqizo yethu ingama lapho iminyaka engu-10 kuya kwengu-30. Akulula ngempela."Wang Sheng wathi.
Isikhathi sokuthumela: Aug-03-2022
