TOKYO, Mar 22, 2024 – (JCN Newswire) – I-NEC Corporation (I-TSE: 6701) kanye ne-NTT Corporation (NTT) namuhla bamemezele ukuthi benze ngempumelelo ukuhlolwa kokudluliselwa kwe-transoceanic-class 7,280km okokuqala ngqa besebenzisa i-12-core multicore fiber(1), equkethe i-12 optical. Izindlela zokudlulisa isignali ku-fiber optical optical ububanzi obuyindilinga yangaphandle (0.125 mm). Le mpumelelo kulindeleke ukuthi ibe ubuchwepheshe bengqalasizinda yokudlulisa esizukulwaneni esilandelayo obuzofaka isandla ekufezekisweni kwamanethiwekhi okukhanya amakhulu, okuhlanganisa nezintambo zesikhathi esizayo ezisebenza ngaphansi kolwandle.

Background

Ngokusabalala kwe-5G emhlabeni wonke kanye nokuxhumana okwandisiwe phakathi kwezikhungo zedatha, ithrafikhi ye-inthanethi yamazwe ngamazwe inyuke ngesilinganiso sonyaka esingama-30% kusukela ngo-2018 kuya ku-2022 (*2), futhi lo mkhuba kulindeleke ukuthi uqhubeke. Ukuze kuhlangatshezwane nesidingo esinamandla sokuxhumana, kunesidingo esikhulayo sokwandisa umthamo wokudlulisela ngesistimu yekhebula engaphansi kwamanzi optical ngaphezu kokwandisa inani lezintambo zangaphansi kolwandle. Indlela ebizwa ngokuthi i-core ngaphakathi kwe-fiber eyodwa. Ngokuphambene, ucwaningo nokuthuthukiswa kwenziwa emhlabeni wonke ukuze kwandiswe umthamo wekhebula ngokusebenzisa i-multicore fiber, enama-cores amaningi ukwandisa umthamo wokudlulisela ngaphandle kokushintsha ububanzi obujwayelekile bangaphandle befayibha. I-NEC njengamanje ibambe iqhaza kuphrojekthi yokufaka isistimu yekhebula ehamba ngaphansi kwamanzi edonsa isikhathi eside esebenzisa i-two-core multicore fiber enemigudu emibili yokudlulisa amehlo.

Imiphumela Yokucwaninga

Njengoba ama-cores engeziwe engezwa ku-fiber optical enobubanzi obujwayelekile obungaphandle, i-crosstalk yenzeka lapho amasignali optical avuzayo enkabeni ephazamisa amasignali okubona kuma-cores aseduze, okuholela ekuphazamisekeni, okona ikhwalithi yokuxhumana okuhlangene. Ikakhulukazi ekudlulisweni kwebanga elide, ngaphezu kobucayi be-crosstalk, kuba nzima ukuthola amasignali adlulisiwe ngokunembile ngenxa yokungafani kokulibaziseka nokulahlekelwa phakathi kwamasignali optical.NEC kanye ne-NTT baye bahlakulela ubuchwepheshe obulandelayo ukubhekana nalezi zinkinga.

1. Ukuthuthukiswa kwe-algorithm yi-NEC yokwehliswa kwezimpawu ezitholiwe kusetshenziswa ubuchwepheshe be-Multiple Input Multiple Output (MIMO)

Nakuba ubuchwepheshe be-MIMO buvame ukusetshenziswa ukuhlukanisa amasignali omsakazo aphazamisayo amaningi, isikali sokucubungula isignali ye-MIMO esisetshenziswe ngendlela engokoqobo ekuxhumaneni okukhona nokubonayo sikhawulelwe kumasignali ane-polarization multiplexed. Ngaphezu kwalokho, i-multicore fiber enama-cores amaningi idinga ukucutshungulwa kwesignali okubanzi kakhulu ngoba amasiginali okubona aphinde aphindwe kabili. Ngaphezu kwalokho, ukwenzeka okungahleliwe kwe-crosstalk ekudluliselweni kwebanga elide yinkinga okufanele ixazululwe. I-NEC manje isithuthukise i-algorithm yokudluliselwa kwebanga elide futhi yayisebenzisa ku-24 x 24 MIMO (ama-cores angu-12 x 2 polarizations), okuvumela ukuhlukaniswa okunembile nokwehliswa kwamasiginali atholwe ngesivinini esiphezulu.

2. Ukuthuthukiswa kolayini wokudlulisa we-12-core multicore fiber optical nge-NTT

Ekuxhumaneni okude kwe-optical kusetshenziswa i-multicore fiber, lapho ukubambezeleka okungeyona into efanayo kanye nokulahlekelwa kwenzeka ekusakazeni phakathi kwamasignali optical multiplexed, izinsiza zesifunda ezidingekayo ekucubunguleni isignali ye-MIMO ngesikhathi sokwanda kokwamukela, okwenza ukuqaliswa nokuqaphela kube nzima. Ukwengeza, ukungafanani ekulahlekelweni kokusabalalisa kukhawulela kakhulu ibanga elingadluliswa. Kulolu cwaningo, i-NTT ithuthukise ubuchwepheshe bokuklama be-multicore fibre kanye namadivayisi okufaka/okukhiphayo optical (okuxhuma i-fan-in/fan-out) enganciphisa imiphumela yokungafani phakathi kokulibaziseka nokulahlekelwa kwesignali, kanye nolayini wokudlulisa amehlo. ukuklama ubuchwepheshe bokuhlola izinhlelo zokusebenza ezihamba isikhathi eside.Ihlanganisa lobu buchwepheshe, i-NEC kanye ne-NTT yenze izivivinyo zokudlulisa amabanga amade ngaphezu kwe-7,280km, ithatha ikhebula le-submarine le-transoceanic-class optical optical, futhi yaphumelela okokuqala emhlabeni ekuqedeni ngokunembile i-12-spatially. amasignali optical amaningi angaxhunyiwe ku-inthanethi.

Intuthuko Yesikhathi Esizayo

Lezi zinkampani ezimbili zizoqhubekisela phambili ucwaningo nokuthuthukiswa kwalobu buchwepheshe ngenhloso yokubenza ezentengiselwano njengohlelo lwekhebula lomkhumbi ohamba ngaphansi kwamanzi oludonsa isikhathi eside, olunamandla amakhulu kanye nohlelo lwenethiwekhi ye-terrestrial core network oluzoba nomthelela ekufezekisweni kokudluliswa kwe-optical enamandla amakhulu. ingqalasizinda kumqondo we-IOWN® (*3) kanye nangenkathi engaphezu kwe-5G/6G ngeminyaka yo-2030. I-NEC kanye ne-NTT izokwethula imiphumela njengephepha elinamaphuzu aphezulu ku-Technical Conference ye-OFC 2024, umcimbi omkhulu kunawo wonke emhlabeni kwezokuxhumana okubonakalayo (March 24 kuya kuMashi 28, 2024, eSan Diego Convention Center eCalifornia, eU.SA).

(1) I-multicore fiber ehlanganisiwe: I-fiber optical lapho amasignali adluliswa ku-core ngayinye ahlukaniswa futhi ahlehliswe ngokucubungula ngemuva kwesisekelo sokuthi amasignali okukhanya avuzayo avela ezindleleni zokudlulisa amehlo amaningi (ama-cores) ku-fiber aphazamisana futhi athonyane.
(2) Umthombo: TeleGeography (https://tinyurl.com/mu6nwfcd) 
(3) Inethiwekhi ye-Innovative Optical and Wireless Network (IOWN) ingqalasizinda yezokuxhumana ethuthukisiwe ehlanganisa izithombe ze-Cutting-Edge, Computing nobunye ubuchwepheshe ukuze kutholakale umhlaba ohlakaniphile okhuthazwa yi-IOWN Global Forum (https://iowngf.org/).

Ukukhululwa kwabezindaba: I-NTT, i-Intel kanye ne-Sony Sungula Iforamu Entsha Yomhlaba Wonke Enikezelwe Ekufezekiseni Ukuxhumana Kwekusasa https://group.ntt/en/newsrelease/2019/10/31/191031a.html

Mayelana NEC Corporation

I-NEC Corporation isizibeke njengomholi ekuhlanganiseni ubuchwepheshe be-IT nobuxhumanxiwa ngenkathi ikhuthaza isitatimende somkhiqizo esithi "Orchestrating a world bright." I-NEC inika amandla amabhizinisi nemiphakathi ukuzivumelanisa nezinguquko ezisheshayo ezenzeka emphakathini nasemakethe njengoba ihlinzeka ngamanani ezenhlalo kwezokuphepha, ezokuphepha, ukungakhethi kanye nokusebenza kahle ukukhuthaza umhlaba ozinzile lapho wonke umuntu enethuba lokufinyelela amandla akhe aphelele. Ukuthola eminye imininingwane, vakashela i-NEC ku https://www.nec.com.

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• Source: https://www.jcnnewswire.com/pressrelease/89726/3/