Koj puas xav paub seb koj tus hluas nraug nyiam ua si hauv computer? Cia kuv qhia koj cov lus qhia, koj tuaj yeem tshawb xyuas nws lub computer yog network cable txuas lossis tsis yog. Vim hais tias cov tub hluas muaj kev xav tau siab ntawm kev sib txuas ceev thiab qeeb thaum ua si, thiab feem ntau ntawm lub tsev tam sim no WiFi tsis tuaj yeem ua qhov no txawm tias qhov kev sib txuas ntawm kev sib txuas ceev ceev txaus, yog li cov tub hluas uas feem ntau ua si ua si nyiam xaiv wired nkag mus rau broadband. xyuas kom ruaj khov thiab ceev network ib puag ncig.
Qhov no kuj qhia txog cov teeb meem ntawm WiFi kev twb kev txuas: siab latency thiab instability, uas yog pom tseeb nyob rau hauv cov ntaub ntawv ntawm ntau tus neeg siv nyob rau tib lub sij hawm, tab sis qhov teeb meem no yuav zoo heev nrog lub sij hawm tuaj txog ntawm WiFi 6. Qhov no yog vim WiFi 5, uas. yog siv los ntawm cov neeg feem coob, siv OFDM thev naus laus zis, thaum WiFi 6 siv OFDMA thev naus laus zis. Qhov sib txawv ntawm ob txoj kev tuaj yeem ua duab kos duab:
Ntawm txoj kev uas tuaj yeem ua tau ib lub tsheb nkaus xwb, OFDMA tuaj yeem sib kis tau ntau lub davhlau ya nyob twg nyob rau tib lub sijhawm, tshem tawm cov kab thiab kev sib tsoo, txhim kho kev ua haujlwm tau zoo thiab txo qis latency. OFDMA faib cov wireless channel rau hauv ntau lub subchannels hauv qhov zaus sau, kom ntau tus neeg siv tuaj yeem xa cov ntaub ntawv ib txhij nyob rau tib lub sijhawm, uas txhim kho qhov ua tau zoo thiab txo qhov ncua sij hawm ntawm queuing.
WIFI 6 tau raug ntaus txij li thaum nws tso tawm, raws li tib neeg xav tau ntau thiab ntau lub tsev wireless network. Ntau tshaj 2 billion Wi-Fi 6 lub davhlau ya nyob twg tau xa los ntawm qhov kawg ntawm 2021, suav txog ntau dua 50% ntawm tag nrho Wi-Fi davhlau ya nyob twg xa khoom, thiab tus lej ntawd yuav loj hlob mus rau 5.2 billion los ntawm 2025, raws li cov kws tshuaj ntsuam xyuas IDC.
Txawm hais tias Wi-Fi 6 tau tsom mus rau cov neeg siv kev paub dhau los hauv cov xwm txheej siab ceev, cov ntawv thov tshiab tau tshwm sim nyob rau xyoo tas los no uas xav tau ntau dua thiab latency, xws li cov yeeb yaj kiab ultra-siab txhais xws li 4K thiab 8K cov yeeb yaj kiab, cov chaw taws teeb ua haujlwm, online video. Kev sib tham, thiab VR/AR games. Cov tuam txhab thev naus laus zis pom cov teeb meem no ib yam nkaus, thiab Wi-Fi 7, uas muaj qhov nrawm nrawm, muaj peev xwm siab thiab qis latency, tab tom caij nthwv dej. Cia peb coj Qualcomm's Wi-Fi 7 ua piv txwv thiab tham txog dab tsi Wi-Fi 7 tau txhim kho.
Wi-nkaus 7: Tag nrho rau Tsawg Latency
1. Siab dua Bandwidth
Ntxiv dua thiab, coj txoj kev. Wi-nkaus 6 feem ntau txhawb nqa 2.4ghz thiab 5ghz bands, tab sis txoj kev 2.4ghz tau sib koom los ntawm Wi-Fi thaum ntxov thiab lwm yam thev naus laus zis xws li Bluetooth, yog li nws dhau los ua neeg tsis txaus ntseeg. Txoj kev ntawm 5GHz yog qhov dav dua thiab tsis tshua muaj neeg coob dua li ntawm 2.4GHz, uas txhais tau tias muaj kev nrawm dua thiab muaj peev xwm ntau dua. Wi-Fi 7 txawm txhawb nqa 6GHz band nyob rau sab saum toj ntawm ob pawg, nthuav dav ntawm ib qho channel los ntawm Wi-Fi 6′s 160MHz txog 320MHz (uas tuaj yeem nqa ntau yam ntawm ib lub sijhawm). Thaum lub sijhawm ntawd, Wi-Fi 7 yuav muaj qhov sib kis tau zoo tshaj 40Gbps, plaub zaug siab dua Wi-Fi 6E.
2. Multi-link Access
Ua ntej Wi-Fi 7, cov neeg siv tsuas tuaj yeem siv ib txoj kev uas zoo tshaj plaws rau lawv cov kev xav tau, tab sis Qualcomm's Wi-Fi 7 kev daws teeb meem thawb cov kev txwv ntawm Wi-Fi ntxiv: yav tom ntej, tag nrho peb pawg yuav tuaj yeem ua haujlwm ib txhij, minimizing congestion. Tsis tas li ntawd, raws li kev ua haujlwm ntawm ntau qhov txuas, cov neeg siv tuaj yeem txuas tau los ntawm ntau txoj hauv kev, ua kom zoo dua qhov no kom tsis txhob muaj kev sib tsoo. Piv txwv li, yog tias muaj tsheb khiav ntawm ib qho ntawm cov channel, cov cuab yeej siv tau rau lwm cov channel, uas ua rau qis latency. Lub caij no, nyob ntawm qhov muaj nyob ntawm cov cheeb tsam sib txawv, qhov sib txuas sib txuas tuaj yeem siv ob txoj hauv kev hauv 5GHz band lossis kev sib txuas ntawm ob txoj kab hauv 5GHz thiab 6GHz bands.
3. Sib Nqus Channel
Raws li tau hais los saum no, Wi-Fi 7 bandwidth tau nce mus rau 320MHz (tsheb dav). Rau 5GHz band, tsis muaj 320MHz band txuas ntxiv, yog li tsuas yog thaj tsam 6GHz tuaj yeem txhawb hom txuas ntxiv no. Nrog lub high-bandwidth ib txhij multi-link muaj nuj nqi, ob zaus bands yuav muab sau ua ke nyob rau hauv tib lub sij hawm los mus sau cov throughput ntawm ob txoj kev, uas yog, ob 160MHz teeb liab yuav muab ua ke los tsim ib tug 320MHz zoo channel (ntev dav). Nyob rau hauv txoj kev no, ib lub teb chaws zoo li peb, uas tseem tsis tau faib lub 6GHz spectrum, kuj tseem tuaj yeem muab qhov dav txaus txaus kom ua tiav cov txiaj ntsig siab heev hauv cov xwm txheej congested.
4.4K QAM
Qhov kev txiav txim siab tshaj plaws ntawm Wi-Fi 6 yog 1024-QAM, thaum Wi-Fi 7 tuaj yeem ncav cuag 4K QAM. Nyob rau hauv txoj kev no, lub ncov tus nqi tuaj yeem nce ntxiv kom nce kev nkag mus thiab cov ntaub ntawv muaj peev xwm, thiab qhov kawg ceev tuaj yeem ncav cuag 30Gbps, uas yog peb npaug ntawm qhov ceev ntawm 9.6Gbps WiFi 6 tam sim no.
Nyob rau hauv luv luv, Wi-Fi 7 yog tsim los muab kev kub ceev heev, muaj peev xwm, thiab tsis tshua muaj latency cov ntaub ntawv kis tau tus mob los ntawm kev nce tus naj npawb ntawm txoj kab uas muaj, qhov dav ntawm txhua lub tsheb thauj cov ntaub ntawv, thiab qhov dav ntawm txoj kab taug kev.
Wi-nkaus 7 Clears Txoj Kev rau High-speed Multi-connected IoT
Nyob rau hauv tus sau lub tswv yim, lub hauv paus ntawm lub tshiab Wi-Fi 7 thev naus laus zis tsis yog tsuas yog txhim kho lub ncov tus nqi ntawm ib lub cuab yeej xwb, tab sis kuj yuav tsum tau them nyiaj ntau dua rau kev sib kis tau zoo nyob rau hauv kev siv ntau tus neeg siv (ntau -lane access) scenarios, uas yog undoubtedly nyob rau hauv txoj kab nrog rau yav tom ntej Internet ntawm yam khoom era. Tom ntej no, tus sau yuav tham txog cov txiaj ntsig zoo tshaj plaws iot scenarios:
1. Muaj Internet ntawm Yam
Ib qho ntawm cov fwj loj tshaj plaws ntawm iot thev naus laus zis hauv kev tsim khoom yog bandwidth. Cov ntaub ntawv ntau dua uas tuaj yeem sib txuas lus ib zaug, qhov nrawm dua thiab ua tau zoo dua Iiot yuav yog. Nyob rau hauv cov ntaub ntawv ntawm kev ruaj ntseg xyuas nyob rau hauv lub Industrial Internet ntawm tej yam, network ceev yog ib qho tseem ceeb rau txoj kev vam meej ntawm real-time daim ntaub ntawv. Nrog kev pab los ntawm kev kub ceev Iiot network, cov lus ceeb toom ntawm lub sijhawm tuaj yeem xa tuaj rau lub sijhawm kom ceev cov lus teb rau cov teeb meem xws li kev npaj txhij txog lub tshuab tsis ua haujlwm thiab lwm yam cuam tshuam, txhim kho cov khoom tsim tau zoo thiab kev ua haujlwm ntawm kev tsim khoom lag luam thiab txo cov nqi tsis tsim nyog.
2. Edge Computing
Nrog rau tib neeg qhov kev thov rau cov lus teb ceev ceev ntawm cov tshuab ntse thiab cov ntaub ntawv kev ruaj ntseg ntawm Is Taws Nem ntawm Yam tau nce siab dua thiab siab dua, huab xam yuav zoo li yuav tsis zoo rau yav tom ntej. Edge xam tsuas yog hais txog kev suav ntawm tus neeg siv sab, uas yuav tsum tsis yog siv lub zog siab ntawm cov neeg siv sab nraud xwb, tab sis kuj tseem muaj cov ntaub ntawv xa mus ceev txaus ntawm cov neeg siv sab.
3. Uas AR/VR
Immersive VR yuav tsum ua cov lus teb ceev ceev raws li lub sijhawm ua haujlwm tiag tiag ntawm cov neeg ua si, uas yuav tsum tau qeeb qeeb ntawm lub network. Yog tias koj ib txwm muab cov neeg ua si ib qho kev sib tw qeeb qeeb, ces kev nkag mus yog kev dag. Wi-nkaus 7 xav kom daws tau qhov teeb meem no thiab ua kom muaj kev coj noj coj ua ntawm AR / VR immersive.
4. Kev ruaj ntseg ntse
Nrog rau kev txhim kho ntawm kev ruaj ntseg ntse, daim duab xa los ntawm lub koob yees duab ntse tau dhau los ua ntau dua thiab txhais tau hais tias cov ntaub ntawv hloov pauv hloov pauv tau loj dua thiab loj dua, thiab cov kev xav tau ntawm bandwidth thiab network ceev kuj tau nce thiab siab dua. Ntawm LAN, WIFI 7 yog qhov kev xaiv zoo tshaj plaws.
Thaum kawg
Wi-nkaus 7 yog qhov zoo, tab sis tam sim no, lub teb chaws qhia cov cwj pwm sib txawv ntawm seb puas tso cai rau WiFi nkag rau hauv 6GHz (5925-7125mhz) band li tsis muaj ntawv tso cai band. Lub teb chaws tseem tsis tau muab txoj cai meej meej ntawm 6GHz, tab sis txawm tias thaum tsuas yog 5GHz band muaj, Wi-Fi 7 tseem tuaj yeem muab qhov siab tshaj plaws kis tau tus mob ntawm 4.3Gbps, thaum Wi-Fi 6 tsuas yog txhawb nqa qhov siab tshaj plaws download ceev ntawm 3Gbps. thaum muaj 6GHz band. Yog li ntawd, nws cia siab tias Wi-Fi 7 yuav ua lub luag haujlwm tseem ceeb hauv kev ceev Lans yav tom ntej, pab ntau thiab ntau cov cuab yeej ntse kom tsis txhob raug ntes los ntawm cable.
Post lub sij hawm: Sep-16-2022