Ingemuva
I-IWAVE izenzele isistimu edidiyelwe esekelwe kubuchwepheshe be-LTE, enezinzuzo ezisobala ekuhlanganiseni olwandle kanye nokusebenza okuphezulu.
Uhlelo oludidiyelwe lwangaphandle lwe-TD-LTE lunobuhle bobuchwepheshe bokumboza isikhathi eside, ubuchwepheshe be-RRU obunamandla amakhulu, ubuchwepheshe bokukhulisa amandla, ukusakazwa kwensimbi emincane ukuze kuthuthukiswe ukumbozwa kwenethiwekhi, i-CPE enenzuzo ephezulu, ubuchwepheshe bokuxhumana obusezingeni eliphansi, njll., ukuthuthukisa ngempumelelo ukufakwa kwebhendi yefrikhwensi yokuhlanganiswa kwezempi nezakhamuzi.Phoqa.Inezici zokuhlanganiswa okuphezulu nokugcinwa ngaphandle kokugcinwa, ezifanele izindawo eziyinkimbinkimbi nezinzima, futhi inikeza ukudluliselwa okuzinzile nokuthembekile.
Izici Zobuchwepheshe Zemikhiqizo
Ubuchwepheshe bokukhava isikhathi eside
Ngokucushwa kwesikhala sesikhathi esikhethekile, ibanga lokumboza lingafinyelela ku-90km ukuze kuhlangatshezwane nezidingo zokuxhumana zolwandle oluseduze, oluphakathi nendawo, nolwandle olukude.Ukucushwa okukhethekile okukhethekile oku-7 okukhethekile okungu-7 (10:2:2) kungasekela u-15km, futhi ukucushwa okukhethekile okuvame ukusetshenziswa okukhethekile okungu-5 (3:9:2) kungasekela u-90km.Ukucushwa okudlulele (ukulahlekelwa ingxenye yomkhawulokudonsa), ukumisa okungu-0, kungafinyelela ku-119km.
Ukusakazwa kwe-arrow kuthuthukisa ukusabalala kwenethiwekhi.
Lobu buchwepheshe bungalawula iziteshi, i-PDSCH TM2/TM3, i-CRS, njll., efanele izimo ezinomkhawulo we-CRS ophansi.Ukuze uthole umzila omude kakhulu kanye nokumbozwa kwesiqhingi esincane, indawo okuhloswe ngayo incane futhi ingacatshangelwa ukuthi isetshenziswe.Ingathuthukiswa ibe yi-CRS cishe ngama-50%.
Inani eliphakeme kakhulu lama-CPE
Umsebenzi we-CPE wesikhulisi somsindo ophansi uthuthukisa ukuzuza kokwamukelwa kwe-LTE.Ifakwe i-8db omnidirectional antenna, kuyilapho ithola cishe inzuzo engu-20dbi, Khipha umonakalo wokungena ongu-10~20db, ithuthukise nakakhulu umphumela wokwamukela, futhi nebanga lokumboza linganyuswa ngo-150% -200%.Idivayisi ayingeni manzi nge-IP67, ayikhathaleki ngemva kokufakwa.
Ubuchwepheshe be-Low Frequency Propagation
I-frequency band ye-600MHz ibizwa ngokuthi "i-digital dividend", enezinzuzo zokulahlekelwa kokudluliswa kwesignali ephansi, ukumbozwa okubanzi, ukungena okuqinile, izindleko eziphansi zenethiwekhi, njll. Ngakho-ke, ithathwa njengebhendi yefrikhwensi yegolide yokuthuthukiswa kokuxhumana kweselula.
Imvamisa ephansi inezinzuzo eziningi zokusakazeka, ukulahleka kokudlulisela okuphansi, nekhono lemisebe elinamandla.Lapho kuthunyelwa iziteshi ze-multi-base, inzuzo yokumboza iyabonakala.Isibonelo, ezindaweni zasemadolobheni aminyene, inani leziteshi ezidingekayo ku-1.4GHz/1.8GHz liphindwe izikhathi ezingu-3-4 kune-600MHz, futhi ezimeni ezingenalutho ezifana nezindawo ezingaphansi noma eziqhingini, liphindwe izikhathi ezingu-2-3 inani lokuthunyelwa ibhendi yefrikhwensi engu-600M.
Ukuhlanganiswa okuphezulu, okungenakulungiswa
Imishini ihlanganiswe kakhulu ngaphandle kokuthunyelwa kwegumbi lomshini, isistimu ihlanganisa izici ezibalulekile zenethiwekhi ye-LTE njenge-RRU, BBU, EPC nokunye okunjalo, ilungele ukusetshenziswa, futhi ngokuyisisekelo inguziro kumishini yebanga le-IPv6 elingangeni manzi.
Asikho isidingo sokuthunyelwa kwegumbi lekhompyutha, futhi imishini ihlanganiswe kakhulu.Uhlelo luhlanganisa i-RRU, BBU, EPC nezinye izinto ezibalulekile zenethiwekhi ye-LTE zibe yinto eyodwa, elungele ukuthunyelwa.Okokusebenza kuyizinga le-IPV6 elingangeni manzi, futhi empeleni akukho ukulungiswa.
I-Networking Topology Map kulokhu kuhlola
Incazelo emfushane yokuhlolwa
1, Uhlelo oludidiyelwe lwangaphandle lwe-TD-LTE lwakhiwe phezu kombhoshongo wensimbi noma isakhiwo esiphakeme eduze nesiqhingi, futhi kusetshenziswa inethiwekhi yomphakathi engenantambo.
Irutha yenethiwekhi yomphakathi iyinsizakalo yesistimu edidiyelwe ye-TD-LTE yangaphandle, engafakwa, inikwe amandla, futhi yamukelwe eziteshini eziyisisekelo zama-opharetha amaningi ukuze kuqinisekiswe ukuzinza kokubuyisela.
2, Uhlelo oludidiyelwe lwangaphandle lwe-TD-LTE lunokuhlanganiswa okuphezulu futhi luhlanganisa inethiwekhi ewumongo, i-BBU ne-RRU ukuze kuqinisekiswe amandla aphezulu okumbozwa kwendawo ebanzi ngenkathi kuthuthukiswa ukuzinza kokusebenza kwemishini.Isistimu ehlanganisiwe isekela i-IP67 engangeni manzi futhi ivumelana nezimo eziyinkimbinkimbi nesimo sezulu esibi.
3, Isistimu yokuhlanganisa yangaphandle ye-TD-LTE kanye ne-CPE imbozwe ibhendi yefrikhwensi yebutho lezempi (amaphoyinti angama-566-606).Ukulahleka kwendlela yesikhala esine-frequency ephansi kuncane, futhi ukudluliswa okunamandla okuhlukanisa okuqinile kuqinisekisa umkhawulokudonsa kanye nebanga lokumboza elikhulayo.
I-4, i-CPE yezinga lezimboni ye-IP67 ayinamanzi, ivumelana nemvelo yangaphandle eyinkimbinkimbi, futhi ikhwalithi yezinga lezimboni ithuthukisa umkhawulokudonsa nokuzinza.Ukuthunyelwa okuhlangene kanye nokunikezwa kwamandla ngemishini yesimo sezulu.
Umphumela wokuhlola ukumbozwa kwasolwandle.
Imishini ibekwe esakhiweni esiphakeme kakhulu saseDishui Lake e-Shanghai, esihlola i-Yangshan Port ne-Hangzhou Bay ngokulandelana.Isiteshi esiyisisekelo sitshalwe ngaleso sikhathi ngesigxobo se-tripod (33m ngaphezu kwezinga lolwandle), kanti ibanga eliphakeme lokuhlola lingama-54km.
Amandla esignali ye-CPE-74, umakhalekhukhwini (200mw) ukufinyelela okuvamile, ibhizinisi elivamile, ividiyo ecacile nebushelelezi.Izidingo zephrojekthi ngaleso sikhathi zifinyelelwe, futhi ukuhlolwa okwengeziwe akuzange kwenziwe.Ingafinyelela ukumbozwa okuqhubekayo kwamanzi aseYangshan Island kanye neDrishui Lake.
Imikhiqizo Isincomo
Isikhathi sokuthumela: Mar-27-2023
