Yize i-4G ifakwe ilayisense eChina, ukwakhiwa kwenethiwekhi enkulu sekuqalile nje. Ukubhekana nomkhuba wokukhula kwemininingwane yeselula, kuyadingeka ukuthuthukisa ngokuqhubekayo umthamo wenethiwekhi kanye nekhwalithi yokwakhiwa kwenethiwekhi. Kodwa-ke, ukuhlakazwa kwemvamisa ye-4G, ukwanda kokuphazanyiswa, kanye nesidingo sokwabelana ngesayithi ngeziteshi ze-2G ne-3G zishayela ukuthuthukiswa kwesisekelo sokuhlanganiswa okuphezulu, umkhawulokudonsa obanzi nokulungiswa okuguquguqukayo ngokwengeziwe.
I-4G Inethiwekhi yokumboza inethiwekhi.
Ungqimba olusezingeni eliphezulu lwenethiwekhi nobukhulu obuthile bengqimba yamandla yizisekelo ezimbili zokuthola ikhwalithi yenethiwekhi.
Inethiwekhi entsha kazwelonke kufanele icubungule ukwakhiwa kwesendlalelo samandla wenethiwekhi ngenkathi kuqeda ilitshe lesembozo. "Ngokuvamile ngikhuluma, kunezindlela ezintathu kuphela zokuthuthukisa umthamo wenethiwekhi," Wang Sheng, umqondisi wokuthengisa we-China Wireless Network Solutions of Commescope's Wireless Unit Unit yebhizinisi, etshela izindaba ze-China Electronic.
Eyokuqala ukusebenzisa amaza amaningi okwenza i-bandwidth ibanzi. Isibonelo, i-GSM ekuqaleni yayinemvamisa ye-900MHH. Kamuva, kwandiswa abasebenzisi futhi imvamisa ye-1800MHZ yengezwe. Manje ama-3G ne-4G amaza aphezulu. Imvamisa ye-TD-LTE ye-TD China inamabhendi amathathu, futhi imvamisa ye-2.6GHz isetshenzisiwe. Abanye abantu embonini bakholelwa ukuthi lokhu kungumkhawulo, ngoba i-attenciation ephezulu izoba nzima ngokwengeziwe, futhi okokufaka nokukhishwa kwemishini akunakulingana. Okwesibili ukwandisa inani leziteshi eziyisisekelo, okuyindlela esetshenziswa kakhulu. Njengamanje, ubukhulu beziteshi zezindawo ezifuywayo emadolobheni amakhulu naphakathi nendawo buncishisiwe kusuka ngesilinganiso sesiteshi esisodwa sekhilomitha ngalinye esiteshini esisodwa samamitha ayi-200. Okwesithathu ukuthuthukisa ukusebenza kahle kwe-spectrum, okuwukuqondisa kwazo zonke izizukulwane zobuchwepheshe bokuxhumana mobile. Njengamanje, ukusebenza kahle kwe-spectrum ye-4G kuphakeme kakhulu, futhi sekufinyelele kuzinga le-downlink le-100m eShanghai.
Ukuba nokuvalwa kwenethiwekhi okuhle kanye nokuqina okuthile kwesendlalelo samandla kuyizisekelo ezibalulekile zenethiwekhi. Ngokusobala, ukuma kweselula kweChina ye-TD-LTE ukwakha inethiwekhi esezingeni eliphakeme futhi ume phezulu kwemakethe ye-4G ngesipiliyoni sekhwalithi ephezulu. "Sibambe iqhaza ekwakheni iningi lamanethiwekhi angu-240 e-LTE emhlabeni." "Kusuka kokuhlangenwe nakho kwe-commescope, kunezinto ezinhlanu ekwakhiweni kwenethiwekhi ye-LTE. Okokuqala ukuphatha umsindo wenethiwekhi; okwesibili ukuhlela nokulawula i-wireless; okwesine ukwenza a umsebenzi omuhle kusiginali ebuyayo, okungukuthi, umkhawulokuni wesiginali we-uplink kanye ne-DownLink kufanele anele; okwesihlanu ukwenza umsebenzi omuhle wokuvalwa kwangaphakathi nokumboza indawo ekhethekile yezindawo
Imininingwane yezobuchwepheshe yokuhlolwa kokuphathwa komsindo.
Kuyinkinga yangempela ukuphatha ileveli yomsindo futhi yenza abasebenzisi be-Network Orge basebenzise ngokushesha.
Ihlukile ekuthuthukisweni kwesiginali ye-3G ngokwandisa amandla okuhambisa, inethiwekhi ye-4G izoletha umsindo omusha ngokuthuthuka kwesiginali. "Isici senethiwekhi ye-4G ukuthi umsindo awunakuthinta kuphela umkhakha ombozwe yi-antenna, kodwa futhi uthinta imikhakha ezungezile. Ngokwesibonelo, kuzokwenza ukuthi i-HAMEFF SOFT FOSS. Ukusebenza ngukuthi Izinga lokuhanjiswa kwedatha liyancishiswa, isipiliyoni somsebenzisi siyancishiswa, futhi imali yehle. " UWang Sheng uthe, "Inethiwekhi ye-4G isuka esiteshini sesisekelo, i-Internet Rate, kanye nenethiwekhi ye-4G ku-Transmitter, abasebenzisi bezinsizakusebenza abaningi bangathola. Sidinga ukuphatha izinga lomsindo, ngakho Ukuthi onqenqemeni lwenethiwekhi ungathola ukufinyelela okuphezulu, okuyinkinga esikudinga ngempela ukuyixazulula. " Ukuxazulula le nkinga, kunezidingo eziningana: Okokuqala, i-bandwidth yengxenye ye-RF kufanele ibe nokwanele; Okwesibili, ukusebenza kwemishini yenethiwekhi yonke yeRadio Frequency kufanele kube kuhle ngokwanele; Okwesithathu, i-bandwidth yesiginali ye-uplink ibuyiselwe kufanele ilunge ngokwanele.
Kunethiwekhi yendabuko ye-2G, ukunqotshwa kwenethiwekhi kwamaseli esiteshi esiseduze kakhulu kukhulu. Izingcingo eziphathwayo zingathola amasiginali avela eziteshini ezihlukene zesisekelo. Izingcingo ze-2G zizokhiya ngokuzenzakalelayo esiteshini sesisekelo ngesiginali enamandla, unganaki abanye. Ngoba ngeke ishintshe kaningi, ngeke kubangelwe noma yikuphi ukuphazamiseka kuseli elilandelayo. Ngakho-ke, kunethiwekhi ye-GSM, kunezindawo ezi-9 kuya kwezingu-12 ezingezelwa. Kodwa-ke, esikhathini se-3G, ukumbozwa okugcwele kwenethiwekhi kuzoba nomthelela omkhulu emandleni okusebenza kohlelo. Manje, i-antenna ene-65 degree uhhafu we-angle isetshenziselwa ukumbozwa kwemikhakha emithathu. Ukuhlanganiswa komkhakha ezintathu ze-LTE kudinga i-antenna yokusebenza ephezulu ukuze yenziwe ngendlela efanayo ne-3G. "I-antenna ebizwa ngokuthi i-antenna yokusebenza okuphezulu isho ukuthi lapho wenza ama-65 degree antenna ukumboza, ukumbozwa kuzo zombili izinhlangothi zenethiwekhi kuncipha ngokushesha, ukwenza kahle indawo yokugcwala phakathi kwamanethiwekhi amancane. Ngakho-ke, singabona ngokusobala ukuthi amanethiwekhi e-LTE aphezulu futhi izidingo eziphakeme zemishini. " UWang Sheng uthe.
Imvamisa i-Frequency Division Independent kagesi i-antenna evumayo iya ngokuya ibaluleke kakhulu.
Kuyadingeka ukulawula umphetho we-waveware yenethiwekhi ngokunembile ukunciphisa ukuphazanyiswa kwesiteshi. Indlela engcono kakhulu ukubona ukulawulwa kwe-antenna okukude.
Ukuxazulula ukulawulwa kokuphazanyiswa kwenethiwekhi, ikakhulukazi kuya ngezici eziningana: okokuqala, ukuhlelwa kwenethiwekhi, kushiye umugqa okwanele imvamisa; Okwesibili, izinga ledivayisi, inqubo ngayinye yokwakhiwa kufanele ilawulwe kahle; Okwesithathu, izinga lokufaka. "Singene eChina ngo-1997 futhi sathola amacala amaningi asebenzayo. E-Andrew College, esizokwenza ukuqeqesha ukuwafundisa ukufaka nokusebenzisa imikhiqizo yethu engenazintambo. Ngasikhathi sinye, sineqembu elifanayo Yenza izixhumi kanye nezimpondo. "Imikhiqizo yethu ingema lapho iminyaka eyi-10 kuye kwengama-30. Ngempela akulula." UWang Sheng uthe.
Isikhathi sePosi: Aug-03-2022
