I-C-band, i-spectrum yomsakazo enebanga lefrikhwensi phakathi kuka-3.4 GHz no-4.2 GHz, idlala indima ebalulekile kumanethiwekhi e-5G. Izici zayo ezihlukile zikwenza kube ukhiye ekuzuzeni izinsizakalo ze-5G zesivinini esikhulu, eziphansi, kanye nekhava ebanzi.
1. Ukumbozwa okunokulinganisela kanye nesivinini sokudlulisela
I-C-band ingeye-mid-band spectrum, enganikeza ibhalansi ekahle phakathi kokufakwa nesivinini sokudlulisa idatha. Uma kuqhathaniswa ne-low-band, i-C-band inganikeza amanani aphezulu okudlulisa idatha; futhi uma kuqhathaniswa namabhendi efrikhwensi ephezulu (njengamaza amamilimitha), i-C-band inokufakwa okubanzi. Le bhalansi yenza i-C-band ifaneleke kakhulu ekusebenziseni amanethiwekhi e-5G ezindaweni zasemadolobheni nasezindaweni ezingaphansi kwamadolobha, iqinisekisa ukuthi abasebenzisi bathola ukuxhumeka kwesivinini esikhulu kuyilapho behlisa inani leziteshi ezisetshenziswayo.
2. Izinsiza eziningi ze-spectrum
I-C-band ihlinzeka ngomkhawulokudonsa obanzi wokusekela umthamo wedatha omkhulu. Isibonelo, i-Federal Communications Commission (FCC) yase-United States yabele u-280 MHz we-mid-band spectrum ku-5G ku-C-band futhi yayifaka endalini ekupheleni kuka-2020. Ama-operators afana ne-Verizon ne-AT&T bathole inani elikhulu le-spectrum. izinsiza kule ndali, ezihlinzeka ngesisekelo esiqinile sezinsizakalo zabo ze-5G.
3. Sekela ubuchwepheshe obuthuthukisiwe be-5G
Izici zokuvama kwe-C-band ziyenza ikwazi ukusekela ngempumelelo ubuchwepheshe obuyinhloko kumanethiwekhi e-5G, njenge-MIMO enkulu (okuphumayo kokufakwa okuningi) kanye nokwenza i-beamforming. Lobu buchwepheshe bungathuthukisa ukusebenza kahle kwe-spectrum, buthuthukise umthamo wenethiwekhi, futhi buthuthukise ulwazi lomsebenzisi. Ngaphezu kwalokho, inzuzo yomkhawulokudonsa ye-C-band iyenza ikwazi ukuhlangabezana nezidingo zejubane eliphezulu neziphansi ze-5G yezinhlelo zokusebenza zesikhathi esizayo, njenge-augmented reality (AR), i-virtual reality (VR), kanye ne-Inthanethi Yezinto (IoT ).
4. Isicelo esibanzi emhlabeni wonke
Amazwe amaningi nezifunda zisebenzise i-C-band njengebhendi yefrikhwensi eyinhloko yamanethiwekhi e-5G. Isibonelo, amazwe amaningi ase-Europe nase-Asia asebenzisa ibhendi ye-n78 (3.3 kuya ku-3.8 GHz), kuyilapho i-United States isebenzisa ibhendi ye-n77 (3.3 kuya ku-4.2 GHz). Lokhu kuvumelana komhlaba wonke kusiza ukwakha i-ecosystem ye-5G ehlanganisiwe, kukhuthaze ukuhambisana kwemishini nobuchwepheshe, futhi kusheshise ukuthandwa nokusetshenziswa kwe-5G.
5. Nyusa ukuthunyelwa kwezentengiso kwe-5G
Ukuhlela okucacile nokwabiwa kwe-C-band spectrum kusheshise ukuthunyelwa kwezentengiso kwamanethiwekhi e-5G. E-China, uMnyango Wezimboni Nobuchwepheshe Bolwazi uqoke ngokucacile i-3300-3400 MHz (ukusetshenziswa kwasendlini ngokomgomo), 3400-3600 MHz kanye namabhendi angu-4800-5000 MHz njengamabhendi okusebenza wezinhlelo ze-5G. Lokhu kuhlelwa kunikeza isiqondiso esicacile socwaningo nokuthuthukiswa nokudayiswa kwemishini yesistimu, ama-chips, amatheminali namathuluzi okuhlola, futhi ikhuthaza ukudayiswa kwe-5G.
Kafushane, i-C-band idlala indima ebalulekile kumanethiwekhi e-5G. Izinzuzo zayo ekuhlanganiseni, isivinini sokudlulisa, izinsiza ze-spectrum kanye nokusekelwa kwezobuchwepheshe kukwenza kube isisekelo esibalulekile sokubona umbono we-5G. Njengoba ukuthunyelwa kwe-5G yomhlaba wonke kuthuthuka, indima ye-C-band izobaluleka kakhulu, ilethe abasebenzisi umuzwa ongcono wokuxhumana.
Isikhathi sokuthumela: Dec-12-2024
