WiFi 6, Nyengo ya 5G mu WiFi Kufunika kwakukulu kwa teknoloji ya WiFi 6, ndikuganiza kuti mutuwu ukhoza kukhala wofanana bwino kwambiri.Kodi zinthu zitatu zazikulu za 5G ndi ziti?"Ultra-high bandwidth, ultra-low latency and ultra-large capacity" - izi ziyenera kudziwika kwa aliyense, ndithudi, pali mwayi wopezera maukonde otetezeka, kupatsa maukonde (NBIoT, eMTC, eMMB) ntchito kuti akwaniritse malo ochezera a pa Intaneti. ndi kugwiritsidwa ntchito kwa bandwidth, zizindikirozi zimapangitsa 5G kukhala yosiyana kwambiri ndi 4G mbadwo watsopano wa teknoloji yolumikizirana pa intaneti, chifukwa chake "4G imasintha moyo, 5G imasintha anthu".Tiyeni tiwone WiFi 6. Pakhoza kukhala zochitika zambiri, ndipo mndandanda wa zilembo pang'onopang'ono unakhala IEE802.11a/b/g/n/ac/ax, kutsatiridwa ndi ay.Pa Okutobala 4, 2018, bungwe la WiFi Alliance lingaganizenso kuti kutchula dzinali sikoyenera kuzindikiritsa ogula, motero zidasintha kukhala njira yotchulira "WiFi + nambala": IEEE802.11n ya WiFi 4, IEEE802.11ac ya WiFi 5 , ndi IEEE802.11ax kwa WiFi 6. Phindu losintha dzina ndiloti, kuzindikira ndi kosavuta, chiwerengero chachikulu, teknoloji yatsopano, komanso mofulumira maukonde.Komabe, ngakhale ukadaulo wongoyerekeza waukadaulo wa WiFi 5 ungafikire 1732Mbps (pansi pa 160MHz bandwidth) (wamba 80MHz bandiwifi ndi 866Mbps, kuphatikiza ukadaulo wapawiri-band 2.4GHz/5GHz, imatha kufikira liwiro la Gbps), lomwe ndilambiri. apamwamba kuposa liwiro la intaneti la burodibandi yathu wamba 50 500Mbps, pakugwiritsa ntchito tsiku ndi tsiku timapezabe kuti nthawi zambiri pamakhala "ma network abodza", ndiko kuti, chizindikiro cha WiFi chimakhala chodzaza.Kupeza netiweki kumathamanga kwambiri ngati kuti intaneti yatha.Chodabwitsa ichi chikhoza kukhala bwino kunyumba, koma nthawi zambiri zimachitika m'malo opezeka anthu ambiri monga maofesi, masitolo ndi malo amisonkhano.Vutoli likugwirizana ndi ukadaulo wotumizira ma WiFi pamaso pa WiFi 6: WiFi yam'mbuyomu yomwe idagwiritsidwa ntchito OFDM - ukadaulo wa orthogonal frequency division multiplexing, womwe utha kuthandizira kugwiritsa ntchito ogwiritsa ntchito ambiri, monga MU-MIMO, kulowetsa kwa ogwiritsa ntchito ambiri komanso zotulutsa zambiri. , koma pansi pa muyezo wa WiFi 5, ogwiritsa ntchito anayi amatha kuthandizidwa kuti agwirizane ndi MU-MIMO.Kuphatikiza apo, chifukwa chogwiritsa ntchito ukadaulo wa OFDM pakufalitsa, pakakhala kufunikira kwakukulu kwa bandwidth pakati pa ogwiritsa ntchito omwe alumikizidwa, zimabweretsa zovuta pa netiweki yonse yopanda zingwe, chifukwa kufunikira kwakukulu kwa wogwiritsa m'modzi sikumangotenga bandwidth. , komanso amatenga kwambiri yankho lachibadwa la malo opezera zosowa za intaneti za ogwiritsa ntchito ena, chifukwa njira ya malo onse ofikira idzayankha zofuna, zomwe zimapangitsa kuti pakhale "maukonde abodza".Mwachitsanzo, kunyumba, ngati wina atsitsa bingu, ndiye kuti masewera a pa intaneti adzamva kuwonjezeka kwa latency, ngakhale kuthamanga kwapamwamba sikufika malire apamwamba a burodibandi kunyumba, zomwe zimakhala zambiri.
Kufotokozera mwachidule zaukadaulo wamakono mu WIFI 6
Chiyambireni kupangidwa kwake, mtengo wake wogwiritsira ntchito komanso mtengo wamalonda wakhala ukudziwika kwambiri ndi makampani, ndipo wakhala akugwiritsidwa ntchito pafupifupi pazida zonse zam'manja ndi malo ambiri amkati.Pamene moyo wa anthu ukupitilirabe, luso la W i F i likusintha nthawi zonse kuti lipatse ogwiritsa ntchito mwayi wopeza opanda zingwe.Zaka 2 0 1 9, banja la W i F i linalandira membala watsopano, luso la W i F i 6 linabadwa.
Zaukadaulo za WIFI
1.1 Orthogonal Frequency Division Multiple Access
W i F i 6 amagwiritsa ntchito orthogonal frequency division multiple access (OFDMA) njira zamakono zopezera njira, zomwe zimagawanitsa njira yopanda zingwe m'magulu angapo ang'onoang'ono, ndipo deta yomwe imatengedwa ndi subchannel iliyonse imagwirizana ndi zipangizo zosiyanasiyana zopezera, potero kuonjezera deta. mlingo.Pamene kugwirizana kwa chipangizo chimodzi kumagwiritsidwa ntchito, chiwerengero chapamwamba cha W i F i 6 ndi 9.6 G bit / s, chomwe chiri 4 0 % kuposa W i F i 5. ( W i F i 5 theoretical maximum rate of 6.9 Gbit / s).Ubwino wake waukulu ndikuti kuchuluka kwapamwamba kwamalingaliro kumatha kugawidwa mu chipangizo chilichonse pamaneti, potero kumawonjezera kuchuluka kwa chipangizo chilichonse pamaneti.
1.2 Ukadaulo wogwiritsa ntchito mitundu ingapo wopangira zinthu zambiri
W i F i 6 imaphatikizanso ukadaulo wa Multi-User Multiple Input Multiple Output (MU - MIMO).Tekinoloje iyi imathandizira kuti zida ziziyankha nthawi imodzi kumalo olumikizira opanda zingwe okhala ndi tinyanga zambiri, zomwe zimalola kuti malo olowera azilumikizana nthawi yomweyo ndi zida zingapo.Mu W i F i 5, malo olowera amatha kulumikizidwa ndi zida zingapo nthawi imodzi, koma zidazi sizingayankhe nthawi imodzi.
1.3 Tekinoloje yanthawi yodzuka ya Target
Chandamale kudzuka nthawi (TWT, TARGETWAKETIME) TEKNOLOGY NDI ZOFUNIKA ZOTHANDIZA KUKONZA TEKNOLOGY YA W i F i 6, luso limeneli limalola zipangizo kukambirana nthawi ndi nthawi kudzuka kutumiza kapena kulandira deta, ndi opanda zingwe kupeza malo akhoza gulu. Zida zamakasitomala m'njira zosiyanasiyana za TWT, potero kuchepetsa kuchuluka kwa zida zomwe zikupikisana pamayendedwe opanda zingwe nthawi imodzi mukadzuka.Ukadaulo wa TWT umawonjezeranso nthawi yogona ya chipangizocho, zomwe zimathandizira kwambiri moyo wa batri ndikuchepetsa kugwiritsa ntchito mphamvu kwa terminal.Malinga ndi ziwerengero, kugwiritsa ntchito ukadaulo wa TWT kumatha kupulumutsa kupitilira 30% yamagetsi ogwiritsira ntchito magetsi, ndipo ndizothandiza kwambiri paukadaulo wa W i F i 6 kuti akwaniritse zofunikira zochepa zogwiritsa ntchito mphamvu zama terminal amtsogolo a IoT.
1.4 Makina opangira utoto woyambira
Pofuna kupititsa patsogolo kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake. m'badwo wam'mbuyo waukadaulo, womwe ndi njira yoyambira yopangira utoto (BSSSC oooring).Powonjezera BSSC oooring minda pamutu kuti "kudetsa" deta kuchokera ku magulu osiyanasiyana oyambira (BS S), makinawa amagawira mtundu kunjira iliyonse, ndipo wolandila amatha kuzindikira chizindikiro chosokoneza cham'mano molingana ndi BSSSCOOORING FIELD OF. MUKULU WA PAKETI NDIKUSIYANI KULANDIRA, KUPEWA KUTAYULIRA NTCHITO NDIPONSO KULANDIRA NTHAWI.Pansi pamakina awa, ngati mitu yolandilidwa ili ndi mtundu womwewo, imatengedwa ngati chizindikiro chosokoneza mkati mwa 'BSS' yomweyo, ndipo kutumizira kudzachedwa;Mosiyana ndi zimenezi, zimaganiziridwa kuti palibe kusokoneza pakati pa ziwirizi, ndipo zizindikiro ziwirizi zikhoza kufalikira pa njira imodzi komanso pafupipafupi.
2 Zochitika zodziwika bwino zaukadaulo wa WiFi 6
2.1 Wonyamula mavidiyo a Broadband
Ndi kuwongolera kosalekeza kwa zomwe anthu amafunikira pakuwonera kanema, kutsitsa kwamavidiyo osiyanasiyana akuchulukiranso, kuchokera ku SD kupita ku HD, kuchokera ku 4K mpaka 8K, ndipo pomaliza mpaka kanema wamakono wa VR.Komabe, ndi izi, zofunikira za bandwidth zotumizira zawonjezeka, ndipo kukwaniritsa zofunikira zotumizira mavidiyo a Ultra-wideband kwakhala vuto lalikulu pamasewera a kanema.Magulu a 2.4GH z ndi 5G H z amakhala limodzi, ndipo gulu la 5G H z limathandizira 160M H z bandwidth pamitengo yofikira 9.6 G bit/s.Gulu la 5G H z silimasokoneza pang'ono ndipo ndiloyenera kutumizira mavidiyo.
2.2 Ogwira ntchito zocheperako monga masewera a pa intaneti
Masewero amasewera a pa intaneti ndi ntchito zolumikizirana kwambiri ndipo zimafunikira kwambiri pa bandwidth ndi latency.Makamaka pamasewera a VR omwe akubwera, njira yabwino yowafikira ndi W i F i opanda zingwe.Ukadaulo wodula njira wa OFDMA wa W i F i 6 utha kupereka njira yodzipatulira yamasewera, kuchepetsa kuchedwa, ndikukwaniritsa zofunikira pamasewera amasewera, makamaka ntchito zamasewera a VR, chifukwa chotsika kwambiri kufala kwa latency.
2.3 Kulumikizana kwanzeru kunyumba
Kulumikizana mwanzeru ndi gawo lofunikira pamabizinesi anzeru apanyumba monga nyumba yanzeru komanso chitetezo chanzeru.Ukadaulo wamakono wolumikizira nyumba uli ndi malire osiyanasiyana, ndipo ukadaulo wa W i F i 6 udzabweretsa mwayi wolumikizana mwaukadaulo pakulumikizana kwanzeru kunyumba.Imakulitsa kuphatikizika kwa kachulukidwe kakang'ono, kuchuluka kwa mwayi wopezeka, kugwiritsa ntchito mphamvu zochepa komanso mawonekedwe ena, ndipo nthawi yomweyo imatha kukhala yogwirizana ndi ma terminals osiyanasiyana omwe amagwiritsidwa ntchito ndi ogwiritsa ntchito, kupereka kuyanjana kwabwino.
Monga ukadaulo wa LAN wopanda zingwe m'zaka zaposachedwa, ukadaulo wa WiFi6 umakondedwa ndi anthu chifukwa cha liwiro lake lalitali, bandwidth yayikulu, latency yochepa komanso kugwiritsa ntchito mphamvu zochepa, ndipo itha kugwiritsidwa ntchito kwambiri pamavidiyo, masewera, nyumba zanzeru ndi zochitika zina zamabizinesi, kupereka zambiri. zothandiza miyoyo ya anthu.
Nthawi yotumiza: May-06-2023