Piv nrog rau cov tiam dhau los ntawm WiFi thev naus laus zis, cov yam ntxwv tseem ceeb ntawm tiam tshiab ntawm WiFi 6 yog:
Piv nrog rau tiam dhau los ntawm 802.11ac WiFi 5, qhov siab tshaj plaws ntawm WiFi 6 tau nce ntxiv los ntawm 3.5Gbps ntawm yav dhau los mus rau 9.6Gbps, thiab qhov ceev theoretical tau nce ze li ntawm 3 zaug.
Hais txog cov zaus bands, WiFi 5 tsuas yog siv 5GHz xwb, thaum WiFi 6 npog 2.4/5GHz, npog tag nrho cov khoom siv ceev qis thiab ceev siab.
Hais txog hom kev hloov kho, WiFi 6 txhawb nqa 1024-QAM, uas siab dua 256-QAM ntawm WiFi 5, thiab muaj peev xwm ntau dua cov ntaub ntawv, uas txhais tau tias muaj kev xa cov ntaub ntawv sai dua.
Qis dua latency
WiFi 6 tsis yog tsuas yog ua rau muaj kev nce ntxiv ntawm cov nqi upload thiab download xwb, tab sis kuj yog kev txhim kho tseem ceeb hauv kev sib tsoo ntawm lub network, uas tso cai rau ntau lub cuab yeej txuas rau lub network wireless thiab muaj kev sib txuas ceev ceev tas mus li, uas yog vim muaj cov thev naus laus zis tshiab MU-MIMO thiab OFDMA.
Tus qauv WiFi 5 txhawb nqa MU-MIMO (multi-user multiple-input multiple-output) thev naus laus zis, uas tsuas yog txhawb nqa downlink, thiab tsuas yog tuaj yeem paub txog cov thev naus laus zis no thaum rub tawm cov ntsiab lus. WiFi 6 txhawb nqa ob qho tib si uplink thiab downlink MU-MIMO, uas txhais tau tias MU-MIMO tuaj yeem paub txog thaum uploading thiab downloading cov ntaub ntawv ntawm cov khoom siv mobile thiab wireless routers, txhim kho kev siv bandwidth ntawm cov tes hauj lwm wireless.
Tus naj npawb siab tshaj plaws ntawm cov ntaub ntawv spatial data streams uas WiFi 6 txhawb nqa tau nce ntxiv los ntawm 4 hauv WiFi 5 mus rau 8, uas yog, nws tuaj yeem txhawb nqa siab tshaj plaws ntawm 8 × 8 MU-MIMO, uas yog ib qho ntawm cov laj thawj tseem ceeb rau qhov nce ntxiv ntawm tus nqi ntawm WiFi 6.
WiFi 6 siv OFDMA (Orthogonal Frequency Division Multiple Access) thev naus laus zis, uas yog ib qho kev hloov pauv ntawm OFDM thev naus laus zis siv hauv WiFi 5. Nws ua ke OFDM thiab FDMA thev naus laus zis. Tom qab siv OFDM los hloov cov channel mus ua tus neeg nqa khoom niam txiv, qee cov subcarriers Cov thev naus laus zis xa thiab xa cov ntaub ntawv tso cai rau cov neeg siv sib txawv los sib koom tib lub channel, tso cai rau ntau lub cuab yeej nkag mus, nrog lub sijhawm teb luv dua thiab qeeb dua.
Ntxiv rau, WiFi 6 siv lub tshuab xa xov Long DFDM Symbol los ua kom lub sijhawm xa xov ntawm txhua lub teeb liab los ntawm 3.2 μs hauv WiFi 5 mus rau 12.8 μs, txo qhov poob ntawm pob ntawv thiab qhov rov xa dua, thiab ua kom qhov kev xa xov ruaj khov dua.
Muaj peev xwm loj dua
WiFi 6 qhia txog lub tshuab BSS Coloring, cim txhua lub cuab yeej txuas nrog lub network, thiab ntxiv cov ntawv lo rau nws cov ntaub ntawv tib lub sijhawm. Thaum xa cov ntaub ntawv, muaj qhov chaw nyob sib xws, thiab nws tuaj yeem xa ncaj qha yam tsis muaj kev tsis meej pem.
Cov thev naus laus zis ntau tus neeg siv MU-MIMO tso cai rau ntau lub davhlau ya nyob twg los sib qhia cov channel ntawm lub network computer, yog li ntau lub xov tooj ntawm tes / khoos phis tawj tuaj yeem siv Is Taws Nem tib lub sijhawm. Ua ke nrog OFDMA thev naus laus zis, txhua txoj hauv kev hauv WiFi 6 network tuaj yeem ua tiav kev xa cov ntaub ntawv zoo, txhim kho ntau tus neeg siv. Kev paub txog network hauv qhov chaw tuaj yeem ua tau raws li qhov xav tau ntawm WiFi hotspot thaj chaw, kev siv ntau tus neeg siv, thiab nws tsis yooj yim rau khov, thiab lub peev xwm loj dua.
Muaj kev nyab xeeb dua
Yog tias lub cuab yeej WiFi 6 (wireless router) xav tau daim ntawv pov thawj los ntawm WiFi Alliance, nws yuav tsum tau txais WPA 3 kev ruaj ntseg protocol, uas muaj kev nyab xeeb dua.
Thaum pib ntawm xyoo 2018, WiFi Alliance tau tso tawm tiam tshiab ntawm WiFi encryption protocol WPA 3, uas yog ib qho version hloov kho dua tshiab ntawm WPA 2 protocol uas siv dav dav. Kev ruaj ntseg tau txhim kho ntxiv, thiab nws tuaj yeem tiv thaiv tau zoo dua brute force attacks thiab brute force cracking.
txuag hluav taws xob ntau dua
WiFi 6 qhia txog TARget Wake Time (TWT) thev naus laus zis, uas tso cai rau kev npaj lub sijhawm sib txuas lus ntawm cov khoom siv thiab cov wireless routers, txo kev siv cov wireless network antennas thiab lub sijhawm tshawb nrhiav teeb liab, uas tuaj yeem txo kev siv hluav taws xob mus rau qee qhov thiab txhim kho lub neej roj teeb ntawm cov khoom siv.
HUANET muab WIFI 6 ONT, yog tias koj xav tau nws, thov hu rau peb.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-01-2022