Kumayambiriro kwa mwezi wa October, Wi-Fi Alliance inalengeza za mtundu watsopano wa Wi-Fi standard - Wi-Fi 6. Kutulutsidwa kwake kukukonzekera kumapeto kwa 2019. Madivelopa adasintha njira yawo yotchulira mayina - m'malo mwazopanga zonse ngati 802.11ax ndi manambala amodzi. Tiyeni tiwone china chatsopano.
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N’chifukwa chiyani anasintha dzinali
Ndi Madivelopa okhazikika, njira yatsopano yotchulira mayina ipangitsa kuti mayina amiyezo ya Wi-Fi amveke bwino kwa anthu ambiri.
Wi-Fi Alliance ikunena kuti ndizofala tsopano kuti ogwiritsa ntchito agule ma laputopu omwe amathandizira muyezo womwe rauta yawo yakunyumba sangagwire nawo ntchito. Zotsatira zake, chipangizo chatsopanocho chimagwiritsa ntchito njira zobwerera m'mbuyo - kusinthana kwa data kumachitika pogwiritsa ntchito muyezo wakale. Nthawi zina, izi zitha kuchepetsa kusamutsa kwa data ndi 50-80%.
Kuwonetsa momveka bwino kuti izi kapena chipangizochi chimathandizira, Mgwirizanowu wapanga chizindikiro chatsopano - chizindikiro cha Wi-Fi, pamwamba pake nambala yofananira ikuwonetsedwa.
Ndi ntchito ziti zomwe Wi-Fi 6 idapereka?
Kufotokozera mwatsatanetsatane za mawonekedwe onse ndi mawonekedwe a Wi-Fi 6 angapezeke mkati (kuti mulandire, muyenera kudzaza fomu) kapena . Kenako, tikambirana za zatsopano zazikulu.
Imathandizira magulu a 2,4 ndi 5 GHz. Momwemo, kuthandizira munthawi yomweyo kwa 2,4 ndi 5 GHz kumathandizira kukulitsa kuchuluka kwazinthu zamitundu yambiri. Komabe, pochita mwayi uwu sungakhale wothandiza. Pali zida zambiri zoyambira pamsika (zomwe zimathandizira 2,4 GHz), kotero zida zatsopano zizigwira ntchito mofananira.
Thandizo la OFDMA. Tikukamba za Orthogonal Frequency Division Multiple Access (OFDMA). Kwenikweni, ukadaulo uwu ndi mtundu wa "multi-user". . Kumakuthandizani kugawa chizindikiro mu pafupipafupi subcarriers ndi kusankha magulu a iwo pokonza munthu deta mitsinje.
Izi zikuthandizani kuti muzitha kuwulutsa deta kwamakasitomala angapo a Wi-Fi 6 nthawi imodzi pa liwiro lapakati. Koma pali chenjezo limodzi: makasitomala onsewa ayenera kuthandizira Wi-Fi 6. Choncho, zida za "zakale", kachiwiri, zimasiyidwa.
Kuchita zinthu mogwirizana ndi OFDMA. Mu Wi-Fi 5 (izi ndi m'matchulidwe akale, omwe adavomerezedwa mu 2014) ukadaulo (Multiple Input Multiple Output) inalola kuti deta ifalitsidwe kwa makasitomala anayi pogwiritsa ntchito ma subcarriers osiyanasiyana. Mu Wi-Fi 6, kuchuluka kwa kulumikizana kwazida zotheka kwawirikiza kawiri mpaka eyiti.
Wi-Fi Alliance imati machitidwe a MU-MIMO ophatikizidwa ndi OFDMA athandizira kukonza zotumizira anthu ambiri pa liwiro lofikira 11 Gbit/s kupitilira. . Zotsatira izi zida kuyesa pa CES 2018. Komabe, okhala Hacker News kuti zida wamba (malaputopu, mafoni a m'manja) sadzawona liwiro chotero.
Pamayeso ku CES Tri-band rauta D-Link DIR-X9000, ndi 11 Gbps ndi chiŵerengero cha pazipita deta kusamutsa mitengo mu njira zitatu. Okhala mu Hacker News amadziwa kuti nthawi zambiri zida zimagwiritsa ntchito njira imodzi yokha, kotero kuti deta idzaulutsidwa pa liwiro la 4804 Mbit / s.
Target Wake Time ntchito. Idzalola kuti zipangizo zilowe mumayendedwe ogona ndi "kudzuka" malinga ndi ndondomeko. Target Wake Time imatsimikizira nthawi yomwe chipangizocho sichigwira ntchito komanso nthawi yomwe chikugwira ntchito. Ngati chida sichimatumiza deta panthawi inayake (mwachitsanzo, usiku), kulumikizidwa kwake kwa Wi-Fi "kugona," komwe kumapulumutsa mphamvu ya batri ndikuchepetsa kusokonezeka kwa maukonde.
Pachipangizo chilichonse, "nthawi yodzuka" imayikidwa - nthawi yomwe laputopu yokhazikika nthawi zonse imatumiza deta (mwachitsanzo, nthawi yabizinesi pamanetiweki amakampani). Nthawi ngati imeneyi, kugona sikutsegulidwa.
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Kodi Wi-Fi 6 idzagwiritsidwa ntchito kuti?
Malinga ndi omwe akutukulawo, lusoli lidzakhala lothandiza mukamagwiritsa ntchito ma Wi-Fi apamwamba kwambiri. Mayankho osankhidwa monga MU-MIMO ndi OFDMA apititsa patsogolo njira zoyankhulirana zapagulu, malo ogwirira ntchito, malo ogulitsira, mahotela kapena mabwalo amasewera.
Komabe, mamembala a gulu la IT Wi-Fi 6 ili ndi vuto lalikulu pakugwiritsa ntchito ukadaulo. Zotsatira zowoneka zakusintha kupita ku Wi-Fi 6 zitha kuwoneka ngati zida zonse zapaintaneti zimathandizira mulingo watsopano. Ndipo ndithudi padzakhala mavuto ndi izi.
Tikukumbutsani kuti kutulutsidwa kwa Wi-Fi 6 kudzachitika kumapeto kwa 2019.
PS Zida zingapo pamutuwu kuchokera ku blog ya VAS Akatswiri:
Zolemba zokhudzana ndi PPS kuchokera patsamba lathu pa Habré:
Source: www.habr.com