WiFi 6, nguva ye5G muWiFi Kukosha kukuru kweWiFi 6 teknolojia, ndinofunga kuti iyi subtitle inogona kunge yakafananidzira yakakodzera.Ndezvipi zvitatu zvakakosha zve5G?"Ultra-high bandwidth, ultra-low latency uye ultra-large capacity" - izvi zvinofanira kunge zvichizivikanwa nemunhu wese, hongu, kune imwe nzvimbo yakachengeteka yekuwana network, network slicing (NBIoT, eMTC, eMMB) basa kuti riwane yakawanda yakakwana network spectrum. uye kushandiswa kwebhanwidth, maitiro aya anoita kuti 5G ive yakasiyana zvachose kubva ku4G chizvarwa chitsva chekombiyuta yekukurukurirana, ndicho chikonzero "4G inoshandura hupenyu, 5G inoshandura nzanga".Ngatitarisei paWiFi 6. Panogona kunge paine zviitiko zvakawanda, uye tambo iyi yemavara zvishoma nezvishoma yakava IEE802.11a/b/g/n/ac/ax, ichiteverwa neay.Musi wa4 Gumiguru, 2018, iyo WiFi Alliance inogona zvakare kunzwa kuti zita iri harina charinobatsira pakuzivikanwa kwevatengi, saka rakachinja kuita nzira yekupa zita re "WiFi + nhamba": IEEE802.11n yeWiFi 4, IEEE802.11ac yeWiFi 5. , uye IEEE802.11ax yeWiFi 6. Kubatsira kwekushandura zita ndekwechokwadi, kuti cognition iri nyore, iyo yakakura nhamba, itsva teknolojia, uye inokurumidza kukurumidza network.Nekudaro, kunyangwe iyo theoretical bandwidth yeWiFi 5 tekinoroji inogona kusvika 1732Mbps (pasi pe160MHz bandwidth) (yakajairika 80MHz bandwidth i866Mbps, pamwe ne2.4GHz/5GHz dual-band yekubatanidza tekinoroji, inogona kusvika zvakananga Gbps yekuwana kukurumidza), iyo yakawanda. yakakwira kupfuura yekumhanya kweInternet kweyedu yakajairwa imba Broadband 50 500Mbps, mukushandiswa kwezuva nezuva isu tichiri kuona kuti pane kazhinji "fake networking" mamiriro, ndiko kuti, chiratidzo cheWiFi chakazara.Kuwana kune network kunokurumidza sekunge Internet yabviswa.Chiitiko ichi chinogona kunge chiri nani kumba, asi chinowanzoitika munzvimbo dzinogara veruzhinji semumahofisi, zvitoro nenzvimbo dzemisangano.Dambudziko iri rine chekuita neWiFi yekufambisa tekinoroji pamberi peWiFi 6: iyo yapfuura WiFi yakashandiswa OFDM - orthogonal frequency division multiplexing tekinoroji, inogona kunyatso kutsigira kuwanda kwevashandisi kuwana, senge MU-MIMO, yakawanda-mushandisi-yakawanda-yekupinda uye yakawanda-yakabuda. , asi pasi peWiFi 5 chiyero, vanosvika vashandisi vana vanogona kutsigirwa MU-MIMO yekubatanidza.Uyezve, nekuda kwekushandisa tekinoroji yeOFDM yekufambisa, kana paine yakakura bandwidth application kudiwa pakati pevashandisi vakabatana, zvinounza kudzvanywa kukuru kune iyo yese isina waya network, nekuti ichi chakakwira chinodiwa chemushandisi mumwechete hachingogari chete bandwidth. , asi zvakare inobata zvakanyanya kupindurwa kwakajairika kwenzvimbo yekuwana kunetiweki zvinodiwa zvevamwe vashandisi, nekuti chiteshi chese chese chekuwana chinopindura kune chinodiwa, zvichikonzera chiitiko che "nhema networking".Semuenzaniso, kumba, kana mumwe munhu akadhawunirodha kutinhira, ipapo mitambo yepamhepo inonzwa kuwedzera kwe latency, kunyangwe iyo yekurodha yekumhanyisa isingasviki pamuganho wepamusoro weBroadband kupinda kumba, izvo zvakanyanya.
Mhedziso yemamiriro azvino tekinoroji muWIFI 6
Kubva payakagadzirwa, kukosha kwayo kwekushandisa uye kukosha kwekutengesa kwave kuchizivikanwa zvakanyanya neindasitiri, uye yakashandiswa mune dzinenge dzese nharembozha nenzvimbo zhinji dzemukati.Sezvo mararamiro evanhu ari kuramba achivandudzika, tekinoroji yeW i F i inogara ichishanduka kuti ipe vashandisi ruzivo rwekuwana pasina waya.Makore 2 0 1 9, mhuri yeW i F i yakagamuchira nhengo itsva, teknolojia yeW i F i 6 yakazvarwa.
Unyanzvi maficha eWIFI
1.1 Orthogonal Frequency Division Multiple Access
W i F i 6 inoshandisa orthogonal frequency division multiple access (OFDMA) chiteshi chekuwana tekinoroji, iyo inokamura chiteshi chisina waya muhuwandu hukuru hwema sub-channel, uye iyo data inotakurwa neimwe subchannel inoenderana neyakasiyana michina yekuwana, nekudaro ichiwedzera zvakanyanya data. rate.Kana kubatanidzwa kwe-single-device kunoshandiswa, theoretical maximum rate yeW i F i 6 i 9.6 G bit / s, iyo 4 0 % yakakwirira kudarika W i F i 5. ( W i F i 5 theoretical maximum rate of 6.9 Gbit/s).Mukana wayo mukuru ndewekuti iyo theoretical peak rate inogona kukamurwa kuita yega mudziyo munetiweki, nekudaro ichiwedzera mwero wekuwana wechinhu chimwe nechimwe pane network.
1.2 Multi-user multi-input multi-output tekinoroji
W i F i 6 inosanganisirawo Multi-User Multiple Input Multiple Output (MU - MIMO) teknolojia.Iyi tekinoroji inogonesa michina kuti ipindure panguva imwe chete kune isina waya yekuwana nzvimbo ine akawanda antenna, ichibvumira nzvimbo dzekuwana kuti dzitaure nekukasira nemidziyo yakawanda.MuW i F i 5, nzvimbo dzekuwana dzinogona kubatanidzwa kune akawanda madivayiri panguva imwe chete, asi zvishandiso izvi hazvigone kupindura panguva imwe chete.
1.3 Target yekumuka-nguva tekinoroji
Target kumuka nguva (TWT, TARGETWAKETIME) TEKNOLOGY INOKOSHA RESOURCE KURONGWA TEKNOLOGY YEW i F i 6, tekinoroji iyi inobvumira michina kutaurirana nguva uye nguva yekumuka kuti itumire kana kugamuchira data, uye isina waya yekupinda nzvimbo inogona kuita boka. Zvishandiso zvemutengi muzvikamu zvakasiyana zveTWT, nekudaro zvichidzikisa huwandu hwemidziyo inokwikwidza isina waya chiteshi panguva imwe chete mushure mekumuka.Tekinoroji yeTWT inowedzerawo nguva yekurara yechishandiso, iyo inovandudza zvakanyanya hupenyu hwebhatiri uye inoderedza kushandiswa kwesimba kweiyo terminal.Zvinoenderana nenhamba, kushandisa tekinoroji yeTWT inogona kuchengetedza zvinopfuura makumi matatu muzana emagetsi ekupedzisira, uye inobatsira kune W i F i 6 tekinoroji kuti isangane nekushomeka kwekushandisa kwemagetsi zvinodiwa kune ramangwana IoT terminals.
1.4 Yekutanga seti seti yekupenda nzira
Kuti uvandudze kuita kwese kwehurongwa munzvimbo yakaomesesa yekuendesa, kuona kushandiswa kunoshanda kwezviwanikwa zve spectrum, uye kugadzirisa dambudziko rekupindira kwe-co-channel, W i F i 6 inowedzera nzira itsva yekufambisa-nhanho yakavakirwa pane. yapfuura chizvarwa chetekinoroji, iyo yekutanga sevhisi set coloring (BSSSC ooooring) maitiro.Nekuwedzera BSSC ooring minda mumusoro kuti "kusvibisa" data kubva kune akasiyana ekutanga maseti seti (BS S), iyo michina inopa ruvara kune yega yega chiteshi, uye anogamuchira anogona kuona co-channel yekupindira chiratidzo kutanga zvinoenderana neBSSSCOOORING FIELD OF. MUSORO WEPACKET UYE REGA KUCHIGAMUCHIRA, KUNZVISA KUTASISA KUTAURA UYE KUGADZIRA NGUVA.Pasi peiyi nzira, kana misoro yakagamuchirwa iri yemuvara wakafanana, inoonekwa sechiratidzo chinopindira mukati meiyo 'BSS' imwechete, uye kutapurirana kuchanonoka;Sezvineiwo, zvinofungidzirwa kuti hapana kupindirana pakati pezviviri, uye maviri masaini anogona kufambiswa pane imwechete chiteshi uye frequency.
2 Mamiriro ekushandisa eWiFi 6 tekinoroji
2.1 Hombe Broadband vhidhiyo sevhisi inotakura
Nekuenderera mberi kwekuvandudzwa kwezvinodiwa zvevanhu zvechiitiko chevhidhiyo, bitrate yeakasiyana masevhisi masevhisi ari kuwedzerawo, kubva SD kusvika HD, kubva 4K kusvika 8K, uye pakupedzisira kune yazvino VR vhidhiyo.Nekudaro, neizvi, iyo yekufambisa bandwidth inodiwa yakawedzera, uye kusangana ne-ultra-wideband vhidhiyo yekufambisa zvinodiwa rave dambudziko guru remavhidhiyo masevhisi.Mabhendi e2.4GH z uye 5G H z anogara pamwe chete, uye bhendi re5G H z rinotsigira 160M H z bandwidth pamitengo inosvika 9.6 G bit/s.Iyo 5G H z bhendi ine zvishoma kupindira uye yakanyanya kukodzera kufambisa masevhisi evhidhiyo.
2.2 Low-latency service bearers senge mitambo yepamhepo
Masevhisi emitambo yepamhepo masevhisi anodyidzana akasimba uye ane zvinodiwa zvepamusoro zvebandwidth uye latency.Kunyanya yemitambo yeVR iri kusimukira, nzira yakanakisa yekuiwana ndeye W i F i isina waya.Iyo OFDMA chiteshi chekucheka tekinoroji yeW i F i 6 inogona kupa yakazvipira chiteshi chemitambo, kuderedza latency, uye kusangana nezvinodiwa zvemitambo masevhisi, kunyanya VR mutambo masevhisi, kune yakaderera latency kutapurirana mhando.
2.3 Smart imba yakangwara yekubatanidza
Hungwaru yekubatanidza chikamu chakakosha cheakangwara kumba bhizinesi mamiriro senge smart imba uye smart chengetedzo.Yazvino matekinoroji ekubatanidza imba ane zvipimo zvakasiyana, uye W i F i 6 tekinoroji ichaunza mikana yekubatana kwehunyanzvi kune smart yekubatanidza imba.Inogadzirisa kubatanidzwa kwehupamhi hwepamusoro, nhamba huru yekuwana, kushandiswa kwesimba shoma uye mamwe maitiro, uye panguva imwechete inogona kuwirirana nemhando dzakasiyana-siyana dzemafoni emagetsi anowanzoshandiswa nevashandisi, kupa kudyidzana kwakanaka.
Seyakasimukira isina waya yeLAN tekinoroji mumakore achangopfuura, WiFi6 tekinoroji inofarirwa nevanhu nekuda kwekumhanya kwayo, hombe bandwidth, yakaderera latency uye yakaderera mashandisiro emagetsi, uye inogona kushandiswa zvakanyanya mumavhidhiyo, mitambo, imba yakangwara uye mamwe mamiriro ebhizinesi, kupa zvimwe. kurerukira hupenyu hwevanhu.
Nguva yekutumira: Chivabvu-06-2023