WiFi 6, zamanin 5G a cikin WiFi

WiFi 6, zamanin 5G a cikin WiFi Babban mahimmancin fasahar WiFi 6, Ina tsammanin wannan juzu'i na iya zama kwatankwacin mafi dacewa.Menene manyan abubuwa uku na 5G?"Ultra-high bandwidth, ultra-low latency and ultra-high power" - wannan ya kamata ya zama sananne ga kowa da kowa, ba shakka, akwai ingantaccen hanyar sadarwar hanyar sadarwa, slicing cibiyar sadarwa (NBIoT, eMTC, eMMB) aiki don cimma ƙarin isasshiyar bakan cibiyar sadarwa. da kuma amfani da bandwidth, waɗannan halayen sun sa 5G ya bambanta da 4G sabon ƙarni na fasahar sadarwar sadarwar, wanda shine dalilin da ya sa "4G yana canza rayuwa, 5G yana canza al'umma".Bari mu dubi WiFi 6. Ana iya samun ci gaba da yawa, kuma wannan jerin haruffan sannu a hankali ya zama IEE802.11a/b/g/n/ac/ax, sai ay.A ranar 4 ga Oktoba, 2018, WiFi Alliance na iya jin cewa wannan suna da gaske bai dace da ganewar mabukaci ba, don haka ya canza zuwa hanyar suna na "WiFi + lambar": IEEE802.11n don WiFi 4, IEEE802.11ac don WiFi 5. , da kuma IEEE802.11ax don WiFi 6. Amfanin canza suna shine, ba shakka, cewa fahimta yana da sauƙi, mafi girma lambar, sabon fasaha, kuma mafi sauri hanyar sadarwa.Duk da haka, ko da bandwidth na ka'idar fasahar WiFi 5 zai iya kaiwa 1732Mbps (a ƙarƙashin 160MHz bandwidth) (yawan bandwidth na 80Mhz na kowa shine 866Mbps, tare da fasahar haɗin haɗin gwiwar 2.4GHz / 5GHz dual-band, yana iya kai tsaye kai tsaye zuwa saurin samun damar Gbps), wanda yake da yawa. sama da saurin shiga Intanet na gidanmu na yau da kullun 50 500Mbps, a cikin amfani da yau da kullun har yanzu muna gano cewa sau da yawa ana samun yanayin “fake networking”, wato, siginar WiFi ta cika.Samun shiga hanyar sadarwar yana da sauri kamar an cire haɗin Intanet.Wannan al'amari yana iya zama mafi kyau a gida, amma yana yiwuwa ya faru a wuraren taruwar jama'a kamar ofisoshi, kantuna da wuraren taro.Wannan matsalar tana da alaƙa da fasahar watsawa ta WiFi kafin WiFi 6: WiFi na baya da aka yi amfani da shi na OFDM - fasaha na rarraba mitar mitoci na orthogonal, wanda zai iya tallafawa samun dama ga masu amfani da yawa, kamar MU-MIMO, shigarwar mai amfani da yawa-da yawa da fitarwa mai yawa. , amma a ƙarƙashin ma'auni na WiFi 5, har zuwa masu amfani da hudu za a iya tallafawa don haɗin MU-MIMO.Bugu da ƙari, saboda amfani da fasahar OFDM don watsawa, idan akwai buƙatar aikace-aikacen bandwidth mai yawa tsakanin masu amfani da haɗin gwiwa, zai kawo babban matsin lamba ga duk hanyar sadarwar mara waya, saboda wannan babban buƙatun mai amfani ba kawai ya mamaye bandwidth ba. , amma kuma yana mamaye al'ada na al'ada na hanyar samun dama ga bukatun cibiyar sadarwa na sauran masu amfani, saboda tashar tashar gaba ɗaya za ta amsa ga buƙatar, wanda ya haifar da sabon abu na "cibiyoyin sadarwa na ƙarya".Misali, a gida, idan wani ya saukar da tsawa, to, a fili wasannin kan layi za su ji karuwa a cikin latency, koda kuwa saurin saukarwa bai kai ga babba ba na hanyar shiga gidan yanar gizo, wanda ke da yawa.

Bayanin yanayin fasaha na yanzu a cikin WIFI 6

Tun da aka ƙirƙira shi, ƙimar aikace-aikacensa da ƙimar kasuwancinsa sun sami karɓuwa sosai daga masana'antar, kuma ana amfani da shi a kusan dukkanin na'urorin hannu da galibin mahalli na cikin gida.Yayin da yanayin rayuwar mutane ke ci gaba da inganta, fasahar W i F i tana ci gaba da bunkasa don samarwa masu amfani da ingantacciyar ƙwarewar shiga mara waya.2 0 1 9 shekaru, W i F i iyali maraba da wani sabon memba, da W i F i 6 fasahar da aka haife.

Fasalolin fasaha na WIFI

1.1 Rarraba Mitar Mitar Orthogonal Dama Dama

W i F i 6 yana amfani da fasahar shiga tashoshi ta orthogonal mita division Multi access (OFDMA), wanda ke raba tashar mara waya zuwa manyan tashoshi masu yawa, kuma bayanan da kowane tashoshi ke ɗauka ya dace da na'urorin shiga daban-daban, ta yadda za a haɓaka bayanai yadda ya kamata. ƙimar.Lokacin da ake amfani da haɗin na'urori guda ɗaya, matsakaicin ƙimar ka'idar W i F i 6 shine 9.6 G bit / s, wanda shine 4 0 % sama da W i F i 5. ( W i F i 5 matsakaicin ƙimar ka'idar 6.9 Gbit/s).Babban fa'idarsa shine cewa ana iya raba ƙimar kololuwar ƙididdigewa zuwa kowace na'ura a cikin hanyar sadarwa, ta haka ƙara ƙimar samun damar kowace na'ura akan hanyar sadarwar.

1.2 Fasaha mai yawan shigar da mai amfani da yawa

W i F i 6 kuma ya ƙunshi fasaha mai amfani da Multiple Input Multiple Output (MU - MIMO).Wannan fasaha yana ba na'urori damar amsa lokaci guda zuwa wuraren samun damar mara waya mai ɗauke da eriya da yawa, yana barin wuraren samun damar sadarwa nan take tare da na'urori da yawa.A cikin W i F i 5, ana iya haɗa wuraren shiga zuwa na'urori da yawa a lokaci guda, amma waɗannan na'urori ba za su iya amsawa a lokaci guda ba. 

1.3 Fasahar lokacin farkawa manufa

Lokacin farkawa (TWT, TARGETWAKETIME) FASAHA MUHIMMANCI NE GA FASSARAR JADDARAWAR ARZIKI NA W i F i 6, wannan fasaha tana ba na'urori damar yin shawarwari akan lokaci da tsawon lokacin tashi don aikawa ko karɓar bayanai, kuma wurin shiga mara waya zai iya haɗawa. na'urorin abokin ciniki cikin kewayon TWT daban-daban, don haka rage adadin na'urorin da ke fafatawa don tashoshi mara waya a lokaci guda bayan farkawa.Hakanan fasahar TWT tana ƙara lokacin barcin na'urar, wanda ke inganta rayuwar baturi sosai kuma yana rage ƙarfin wutar lantarki.Bisa kididdigar da aka yi, yin amfani da fasahar TWT na iya ajiye fiye da kashi 30% na amfani da wutar lantarki, kuma ya fi dacewa da fasahar W i F i 6 don saduwa da ƙananan buƙatun amfani da wutar lantarki na tashar IoT na gaba. 

1.4 Tsarin launi na saitin sabis na asali

Don haɓaka aikin gabaɗaya na tsarin a cikin yanayin jigilar kayayyaki, gane ingantaccen amfani da albarkatun bakan, da magance matsalar kutse ta hanyar haɗin gwiwa, W i F i 6 yana ƙara sabon tsarin watsa tashar haɗin gwiwa dangane da fasahar zamani ta baya, wato tsarin saitin launi na asali (BSSSC ooooring).Ta ƙara filayen BSSC oooring a cikin taken zuwa bayanan "tabo" daga nau'ikan sabis na asali daban-daban (BS S), na'urar tana ba da launi ga kowane tashoshi, kuma mai karɓar zai iya gano siginar kutsawa ta hanyar haɗin gwiwa da wuri bisa ga BSSSCOOORING FIELD OF. BAKI DAYA KA DAINA KARBAR SHI, GUJEWA BATA CIN HANYA DA KARBAR LOKACI.A karkashin wannan tsarin, idan masu kai da aka karɓa suna da launi ɗaya, ana ɗaukar shi azaman sigina mai shiga tsakani a cikin 'BSS iri ɗaya, kuma za a jinkirta watsawa;Sabanin haka, ana la'akari da cewa babu tsangwama tsakanin su biyun, kuma ana iya watsa siginar guda biyu akan tashar guda da mita ɗaya.

2 Abubuwan al'amuran aikace-aikace na fasahar WiFi 6 

2.1 Babban mai ɗaukar sabis na bidiyo na broadband

Tare da ci gaba da haɓaka buƙatun mutane don ƙwarewar bidiyo, ƙimar sabis na bidiyo daban-daban kuma yana ƙaruwa, daga SD zuwa HD, daga 4K zuwa 8K, kuma a ƙarshe zuwa bidiyon VR na yanzu.Duk da haka, tare da wannan, buƙatun watsa shirye-shiryen watsa shirye-shirye sun karu, kuma saduwa da buƙatun watsa shirye-shiryen bidiyo na ultra- wideband ya zama babban kalubale ga ayyukan bidiyo.Ƙungiyoyin 2.4GH z da 5G H z suna rayuwa tare, kuma ƙungiyar 5G H z tana goyan bayan bandwidth na 160M H z a ƙimar har zuwa 9.6 G bit / s.Ƙungiyar 5G H z tana da ƙarancin tsangwama kuma ya fi dacewa da watsa ayyukan bidiyo. 

2.2 Masu ba da sabis na rashin jinkiri kamar wasannin kan layi

Ayyukan wasan kan layi sabis ne mai ƙarfi na mu'amala kuma suna da buƙatu mafi girma don bandwidth da latency.Musamman ga wasannin VR masu tasowa, hanya mafi kyau don samun damar su shine W i F i mara waya.Fasaha ta slicing tashar OFDMA na W i F i 6 na iya samar da tashar sadaukarwa don wasanni, rage jinkiri, da biyan buƙatun ayyukan wasanni, musamman sabis na wasan VR, don ƙarancin ingancin watsawa. 

2.3 Haɗin kai mai wayo

Haɗin kai na kaifin basira muhimmin bangare ne na yanayin kasuwancin gida mai wayo kamar gida mai wayo da tsaro mai wayo.Fasahar haɗin gida na yanzu suna da iyakoki daban-daban, kuma fasahar W i F i 6 za ta kawo dama don haɗakar fasaha zuwa haɗin kai na gida mai kaifin baki.Yana haɓaka haɓaka haɓakar haɓaka mai yawa, babban adadin damar shiga, ƙarancin amfani da wutar lantarki da sauran halaye, kuma a lokaci guda yana iya dacewa da tashoshi daban-daban na wayar hannu waɗanda masu amfani ke amfani da su, suna ba da kyakkyawar haɗin gwiwa. 

A matsayin fasahar LAN mara waya mai tasowa a cikin 'yan shekarun nan, fasahar WiFi6 ta fi son mutane don saurin sauri, babban bandwidth, rashin jinkiri da rashin amfani da wutar lantarki, kuma ana iya amfani da shi sosai a cikin bidiyo, wasanni, gida mai wayo da sauran yanayin kasuwanci, samar da ƙarin. saukaka rayuwar mutane.