Ngesihlandlo se-CIOE2019, unxibelelwano oluphambili lwe-optical media yaseTshayina kwi-intanethi kunye neziko lophando lweshishini elidibeneyo likhuphe ngokusemthethweni "izixhobo ze-5G zangaphambi kokuhanjiswa kunye nophuhliso lwemveliso yemodyuli ye-optical kunye nokutsha" iphepha elimhlophe. ingqalelo eninzi.Ngenxa yokuba iza kuzisa iingenelo ezinkulu kwezoqoqosho, ukhuphiswano ehlabathini lonke luya lusiba nzima ngakumbi.Ihlabathi liphuthuma kwixesha elizayo le-5G ngesantya esingazange sibonwe ngaphambili kunye nomdla.EKorea, eyona nto yokuqala ukuthengisa i-5G, ukusebenza kunye nexabiso lesitokhwe seemodyuli ezinxulumene ne-optical kunye neenkampani zesixhobo ziye zanda.Ngenxa yoku, imboni yonxibelelwano lwehlabathi jikelele ibeke ithemba elikhulu ekuhanjisweni kwe-5G.Nangona kunjalo, ukususela ekucwangcisweni kwangaphambili kunye nokuthunyelwa kwezorhwebo kwe-5G, ngokukodwa ekusebenzeni kwe-South Korea, kusekho iindawo ezininzi ezingacacanga ngokupheleleyo malunga nemfuno ye-5G yangaphambili. izicwangciso.Ezi zisombululo mhlawumbi zinjongo "yokuhlaziya" iimveliso ezikhoyo (ezifana ne-PON kunye ne-OTN), okanye ukulandela icala elinye kwesalathisi esithile kunye nokungahoywa kovakalelo oluphezulu kwiindleko (ezifana nokungenambala kunye nokuguqulelwa) Ukukwazi), okanye ngokulula ukungahoyi. umahluko obalulekileyo phakathi kwabamsulwa kunye ne-backhaul, kwaye ubuyisele abafundi bezobugcisa kwinethiwekhi yangaphambili yokudluliselwa (njenge-SPN kunye ne-IPRAN) .Injongo yeli phepha elimhlophe kukubonisa izixhobo ezifanelekileyo kunye nabavelisi bemodyuli.Eli phepha elimhlophe lihlalutya ngokweenkcukacha iimpawu ezibalulekileyo kwiimfuno ezintsha zenethiwekhi ye-preamble: i-25Gbit / s eCPRI i-interface ye-preamble iyisiphumo se-5G RAN umsebenzi wecandelo, eyona mfuneko ekhethekileyo ngaphakathi kwinethiwekhi yokuqala, kwaye ayidlulisi enkulu. uxinzelelo lwamandla phakathi / i-backhaul.I-point-to-point i-transparent transparent connection yiyona ndlela isebenzayo yoxhulumaniso oluxineneyo olufunekayo kwi-5G AAU yokuthunyelwa kwe-dense;iphoyinti ukuya kwindawo ecacileyo unxibelelwano oluthe ngqo luyimfuneko engenakuthintelwa ye-ultra-low latency, ulungelelwaniso lwe-DU, kunye nophuhliso lwamafu e-CU.
Eli phepha limhlophe lichaza imigaqo yokusebenza yezisombululo zobugcisa ezahlukeneyo ezivunyiweyo ezinokuthi zisetyenziswe kuthungelwano lwangaphambili, kwaye lihlalutye ngokubanzi kwaye lithelekise izinto eziluncedo kunye nezingeloncedo, kwaye liphakamisa ngokucacileyo iindlela ezintathu zokukhetha:
I-25Gbit / s i-pre-transmission granularity kunye neemfuno zoqhagamshelo oluthe ngqo olucacileyo zenza i-sub-wavelength multiplexing convergence capability ye-OTN yombane yombane ingafuneki.I-interface yomgca we-100G ye-OTN inokufikelela kuphela kumajelo e-4 weempawu ze-25Gbit / s.Ke ngoko, izixhobo ze-OTN zisetyenziswa kuthungelwano lwangaphambili.Ayifanelanga ikhandlela.
Imodyuli ye-WDM-PON ye-optical engenambala kunye ne-adaptive wavelength iteknoloji ayikwazi ukuphepha imiqobo yobugcisa kunye noxinzelelo lweendleko ze-wavelength tunability.Umsebenzi we-TDM we-WDM-PON elahliweyo usebenzisa kuphela umsebenzi we-ODN kwaye awufani nesisombululo se-WDM esingenamsebenzi, ngoko ke ayinayo ixabiso eliSebenzayo.
Ngokwahlukileyo, iteknoloji ye-WDM ngumzekelo wokufanisa ngokufanelekileyo iteknoloji ye-granularity enkulu, ukuthunyelwa okulula, i-chain chain chain ekhulile kunye nokuphunyezwa lula.Ke ngoko, itekhnoloji ye-WDM lolona khetho lungcono kuthungelwano lwangaphambili lokuhambisa ukoyisa ukunqongophala kwezixhobo zefiber ngexabiso eliphantsi.
Eli phepha elimhlophe lijolise ekunciphiseni iindleko zokuthunyelwa kwe-pre-network kunye nokugcina ukusetyenziswa kwefayibha.Ngenjongo ye“ukuthelekisa okusebenzayo, ubungakanani obukhulu, kulula ukuyisebenzisa, kulula ukuyisebenzisa, kwaye kulula ukuyiphumeza”, eli phepha elimhlophe liphakamisa iimveliso zemodyuli ye-high-speed optical kunye nezixhobo ze-WDM zangaphambili zokuhambisa.Uninzi lwezalathiso ezixabisekileyo ze-R&D zifanelekile ukuba zifundwe ngononophelo zizo zonke izixhobo ezifanelekileyo kunye nabavelisi beemodyuli.
Eyona ndlela ilungileyo yokuqikelela ikamva kukudala ikamva.Eli phepha elimhlophe liza kucima inkungu yezobugcisa kuwe, ucacise uphando kunye nophuhliso lwesikhokelo seemodyuli ze-optical kunye nezixhobo zokusasaza kwangaphambili, gxininisa kwijelo eliphambili lemveliso yokuhanjiswa kwenethiwekhi yangaphambili, kwaye uxhase ngokufanelekileyo ukuthunyelwa kwe-5G yorhwebo kunye ne-pre- ulwakhiwo womnatha wothumelo.
Eli phepha elimhlophe libhalwe ngabamenyiweyo abaphezulu be-5G kunye neengcali zonxibelelwano lwe-optical communication.Ijolise kwi-R&D kunye nesebe lentengiso yazo zonke izixhobo zonxibelelwano lwamehlo kunye nabaphuhlisi bemveliso yeemodyuli ze-optical, kunye nabasebenzi abafanelekileyo besebe lesicwangciso sokwenza izigqibo.Baziqonda iimfuno zonxibelelwano ze-5G ezihambelanayo kunye nokumisela i-5G enxulumene neemveliso zonxibelelwano ze-optical.Ulwalathiso lwe-R & D, cacisa ulwazi oluyimfuneko malunga nokungaqondani okufanelekileyo.