Isethi yezinhlelo ivumela amaqembu eziteshi ezincane ezingenazintambo ezisebenza kumafrikhwensi angu-60 GHz ukuthi axhumane
I-Wireless World: Ochwepheshe baseMikebud, e-Hungary bafaka iziteshi ezincane ezinikwe amandla i-Terragraph ukuze zihlolwe ezaqala ngoMeyi 2018.
I-Facebook isichithe iminyaka ithuthukisa ubuchwepheshe bokuthuthukisa ukuhlelwa kwedatha kanye nokudluliswa kwayo ngamanethiwekhi angenawaya. Lobu buchwepheshe manje sebuhlanganiswa eziteshini eziyisisekelo ezitholakalayo ezithengiswayo ze-60 GHz. Futhi uma abahlinzeki bezokuxhumana behileleka, kungasiza maduze ukuxhuma amakhaya namabhizinisi emhlabeni wonke ngaphandle kwentambo ku-inthanethi.
Ubuchwepheshe be-Facebook, obubizwa nge-Terragraph, buvumela iziteshi eziyisisekelo ukuthi ziqoqwe ndawonye, ββzidluliselwe ku-60 GHz futhi zilawule ngokuzimele futhi zisabalalise ithrafikhi phakathi kwazo. Uma isiteshi esisodwa siyeka ukusebenza, esinye ngokushesha sithatha imisebenzi yaso - futhi bangasebenza ndawonye ukuze bathole indlela esebenza kahle kakhulu ukuze ulwazi ludlule.
Kakade abakhiqizi bemishini eminingi, kuhlanganise , , ΠΈ , yavuma ukukhiqiza izinto ezithengiswayo ezihlanganisa i-Terragraph. Ukwethulwa kwayo kwakamuva kwenzeka ngoFebhuwari embukisweni wezohwebo e-Barcelona. Uma ubuchwepheshe bungasebenza njengoba kuhlosiwe, i-Terragraph izokwenza ukufinyelela ku-inthanethi kusheshe futhi kushibhe ezindaweni zokuthunyelwa.
Ngokukhula, i-inthanethi ye-broadband, eyake yasatshalaliswa phezu kwezintambo ezibizayo ze-fiber-optic ezigqitshwe phansi, iza ezindlini nasemabhizinisini emoyeni. Ukwenza lokhu, abathwali babheka ama-high-frequency bands, anomkhawulokudonsa ophezulu kunamafrikhwensi aphansi amatasa asetshenziselwe isikhathi eside ama-electronics abathengi.
I-Facebook inentshisekelo , evame ukubizwa ngokuthi i-60 GHz, nakuba ngokobuchwepheshe isuka ku-40 kuya ku-75 GHz. Emazweni amaningi alihlali muntu, okusho ukuthi lingasetshenziswa mahhala.
Yize imishini yasendlini esekela i-60 GHz njengenye indlela ye-WiFi isinesikhathi eside ikhona, iziteshi zangaphandle sezivela kuphela. Ama-ISP amaningi acabanga ngokusebenzisa i-60 GHz ukuvala igebe phakathi kwengqalasizinda ekhona nezindawo ezintsha afuna ukufinyelela kuzo, noma ukukhulisa umthamo wezindawo esezimboziwe.
βKuyathakazelisa nakanjani,β kusho , ozakwethu ocwaningayo kanye nomfundi we-PhD kwisayensi yekhompyutha eNyuvesi yaseBuffalo (New York), ukusebenza kahle kwemishini yabathengi engu-60 GHz ekufakweni kwangaphakathi. - Abantu abaningi bahlangabezane nezinkinga ngokuthengiswa kwe-60 GHz. Bekunezingxoxo eziningi ngalesi sihloko."
Inkinga eyodwa ukuthi amasiginali we-wavelength eyimilimitha (30 kuya ku-300 GHz) awahambi amasignali amaza aphansi, amuncwa kalula imvula namaqabunga, futhi awangeni ezindongeni nasemafasiteleni.
Ukuze ubhekane nalezi zinkinga, abahlinzeki ngokuvamile basebenzisa amanethiwekhi angenantambo angashintshi, lapho iziteshi eziyisisekelo zidlulisela khona isignali kumamukeli angaguquki atholakala ngaphandle kwesakhiwo. Futhi ukusuka lapho idatha isivele ihamba ngezintambo ze-Ethernet.
Ngonyaka odlule, i-Facebook ihlangene nayo ukuhlola uhlelo lweTerragraph emizaneni emibili yaseHungary. ochwepheshe baxhuma izindlu eziyi-100 kunethiwekhi. I-Terragraph ivumele izakhamuzi ukuthi zisebenzise i-inthanethi ngesivinini esimaphakathi esingu-500 Mbps, esikhundleni se-5-10 Mbps etholwe nge-DSL. I-Facebook okwamanje iphothula izivivinyo nabasebenzisi baseBrazil, Greece, Hungary, Indonesia, Malaysia nase-United States.
Ubuchwepheshe buqukethe isethi yesofthiwe esekelwe , futhi ihlanganisa izici ezifana nokuhlukanisa isikhathi ukufinyelela okuningi, okuhlukanisa isiteshi sibe izikhala zesikhathi lapho izisekelo ezihlukene zingadlulisela amasignali ngokulandelana okusheshayo. Kumazinga ayisikhombisa I-Terragraph isebenza kungqimba lwesithathu, idlulisa ulwazi phakathi kwamakheli e-IP.
Kuhlelo lwe-Terragraph, i-Facebook ithathe ulwazi lwayo lokudlulisa idatha ngesiteshi sayo se-fiber optic futhi yayisebenzisa kumanethiwekhi angenawaya, kusho. , Umqondisi Omkhulu e-Cambium. Iphrojekthi yeza umbuthano ogcwele ngo-2017 lapho i-Facebook yenza isoftware yomzila engaphansi yamahhala. Lolu hlelo, , ekuqaleni yayihloselwe i-Terragraph, kodwa manje isisetshenziselwa ukudlulisa ulwazi phakathi kwezikhungo zedatha ye-Facebook.
Ubuchwepheshe busenayo imikhawulo yabo. Isiteshi ngasinye esiyisisekelo singadlulisela isignali ebangeni elingafika ku-250 m, futhi konke ukudluliselwa kufanele kwenziwe kulayini wokubuka ongavinjwanga amahlamvu, izindonga noma ezinye izithiyo. U-Anuj Madan, umphathi wemikhiqizo ku-Facebook, uthi inkampani ihlole i-Terragraph emvuleni naseqhweni, nokuthi isimo sezulu "asikayibeki inkinga" ngesivinini sokusebenza. Kodwa i-Hebbala ithi, uma kwenzeka, iziteshi eziningi ze-60 GHz zenzelwe ukushintshela okwesikhashana kumafrikhwensi e-WiFi ajwayelekile angu-5 GHz noma angu-2,4 GHz uma kwenzeka ukulahlekelwa.
Umkhulumeli we-Sprint uthe inkampani ihlela ukuhlola imishini ye-Terragraph futhi ibheka izindaba ezihlobene ne-60 GHz spectrum yenethiwekhi yayo. Umkhulumeli we-AT&T uthe le nkampani yenza izivivinyo zaselabhorethri zamafrikhwensi angama-60 GHz, kodwa ayinazo izinhlelo zokufaka lolu hlu kumanethiwekhi ayo akhona.
USaha, eNyuvesi yaseBuffalo, unethemba ngamathuba kaTerragraph okuphumela emhlabeni. βEkupheleni kosuku, izinkampani zizobheka izindleko zobuchwepheshe, futhi uma zingaphansi kwe-fiber, zizoyisebenzisa nakanjani,β usho kanje.
U-Hebbala uthi isiteshi sokuqala senkampani yakhe esisebenzisa i-Terragraph okwamanje "sisesigabeni sokuthuthukiswa nokuklama" futhi cishe sizofika ngasekupheleni kwalo nyaka. Umgomo wenkampani ukunikeza i-Terragraph njengekhono lesofthiwe okulula ukuyinika amandla noma ukuyilungisa kabusha ukude. βNgethemba ukuthi uma sikhuluma ezinyangeni eziyisithupha, ngizokwazi ukukhuluma ngabashayeli bezindiza kanye nokuthunyelwa kokuhlola namakhasimende okuqala,β usho kanje.
Source: www.habr.com