Tam sim no, WiFi tau nkag mus rau lub sijhawm ntawm WiFi 6, nrog ntau thiab ntau cov cuab yeej ntse tau pib siv, WiFi 6 raws li 2.4GHz thiab 5GHz band tau dhau los ua lub sijhawm kub hauv kev xa xov wireless. Txawm li cas los xij, kev hloov pauv thev naus laus zis nrog txhua hnub dhau mus, WiFi 6E tau raug tso tawm, piv rau WiFi 6, qhov kev nce qib no kuj yog qhov loj heev.
1, WiFi 6 yog dab tsi?
Hais txog WiFi6, tej zaum koj 1, 2, 3... Nws tsis tas yuav meej. Xyoo 2018, WiFi Alliance tau txiav txim siab hu rau tiam tshiab ntawm WiFi thev naus laus zis 802.11ax ncaj qha WiFi 6, yog li qhov xwm txheej dhau los kuj tau hloov pauv. Cia peb ua ib daim ntawv teev npe yooj yim:
· 802.11b - WiFi 1 (1999)
· 802.11a - WiFi 2 (1999)
802.11g -WiFi 3 (2003)
· 802.11n - WiFi 4 (2009)
· 802.11ac -WiFi 5(2014)
WiFi 6 kis ceev
Ntawm no peb yuav tham txog nws qhov theoretical tshaj tawm
2.4 Gbps (4 × 4 MIMO @ 80MHz)
4.8 Gbps (8 × 8 MIMO @ 80MHz)
4.8Gbps (4 × 4 MIMO @ 160MHz)
9.6Gbps (8 × 8 MIMO @ 160MHz)
Tam sim no nws tsawg kawg yog 2.7 npaug sai dua WiFi 5. Yog tias koj tsuas yog saib ntawm qhov rub tawm ceev, nws yog li 1GB / s, thiab qhov ceev ntawm 5G yog 1.25GB / s, uas zoo ib yam.
Raws li qhov theoretical ceev ntawm WiFi 6 saum toj no, saib 5G. Qhov siab tshaj plaws kev sib kis tus nqi ntawm 5G yog 10Gbit / s, thiab lub ncov downstream kis tus nqi yog 20Gbit / s. Nrog ib tug bandwidth ntawm 80 MHz, lub ncov tus nqi ntawm ib tug spatial kwj yog 600Mbit / s, thiab nrog ib tug bandwidth ntawm 160MHz thiab yim spatial kwj, lub ncov tus nqi yog 9.6Gbit / s. Feem ntau hais lus, ob leeg tuaj yeem sawv hauv tib lub echelon.
WiFi 6 ntxiv cov thev naus laus zis tshiab:
(1) MU-MIMO(Sai dua ua ntej)
Ntau tus neeg siv - Ntau lub tswv yim - Ntau qhov tso zis. Cias muab, ua ntej peb WiFi tsuas tuaj yeem sib txuas lus nrog ib lub davhlau ya nyob twg ib zaug, yog tias muaj ntau yam khoom siv nkag mus rau WiFi, lub network yuav hloov daim npav. Qhov teeb meem no tam sim no daws tau zoo nrog WiFi 6.
Cov thev naus laus zis no qhia tau hais tias lub chaw nres tsheb hauv paus tuaj yeem ua haujlwm rau ntau lub xov tooj ntawm tes nyob rau tib lub sijhawm, uas txhim kho tag nrho cov peev txheej thiab lub peev xwm ntawm lub network, thiab Internet ceev yuav zoo dua. WiFi 5 siv MU-MIMO thev naus laus zis hauv kev sib txuas, tab sis WiFi 6 txhawb nqa ntws thiab qis qis, thaum txhawb nqa 8 lub davhlau ya nyob twg los xa cov ntaub ntawv ntau ntxiv rau sab saud / qis, uas yog ob zaug nrawm dua li WiFi 5.
(2) OFDMA(Txuas ntau cov khoom siv tib lub sijhawm)
Orthogonal Frequency Division Multiple Access, lub wireless channel tau muab faib ua ntau yam sub-channels, tsim cov khoom siv ntau zaus; Qhov no ua kom ntseeg tau tias ntau lub terminals tuaj yeem xa mus rau tib lub sijhawm tsis muaj kev sib tw thiab sib tw, yog li txhim kho kev ua haujlwm thiab txo latency.
(3) TWS(Kev siv hluav taws xob tsawg txuag hluav taws xob)
Target Wake Time, Target wake-up technology, txo RF lub sij hawm ua hauj lwm, optimize network kev pab, tuaj yeem txo tau lub computer / xov tooj ntawm tes siv zog
2. WiFi 6E yog dab tsi?
Tom qab WiFi 6, peb tham txog nws cov kev txhim kho ntawm 6E, qhov sib txawv tseem ceeb ntawm ob yog tias 6GHz band tau ntxiv rau thawj zaus ntawm WiFi 6, uas tuaj yeem ua haujlwm tib lub sijhawm hauv 2.4GHz, 5GHz, 6GHz peb. bands.
6GHz yog ib pawg dawb uas muaj peev xwm zoo, vim nws tuaj yeem siv 14 80MHz channels thiab xya ntxiv 160MHz channels, ib zaug ntxiv daws teeb meem spectrum tsis txaus thiab zoo tagnrho rau kev ua haujlwm siab. Kev sib tham tab tom pib, thiab US Tsoom Fwv Teb Chaws Kev Sib Txuas Lus Commission, uas tau pom zoo lub spectrum lub hli tas los, tau tso cai thawj cov cuab yeej siv nws.
Raws li Qualcomm cov ntaub ntawv, qhov siab tshaj plaws theoretical ceev ntawm WiFi 6E lub xov tooj ntawm tes chips yog 3.6Gbps, thiab qhov siab tshaj plaws theoretical ceev ntawm router chips yog li ntawm 5.4Gbps txog 10.8Gbps. Ntxiv mus, qhov kev daws teeb meem tshiab kuj tseem muaj qhov latency tsawg tshaj li 4 milliseconds, thiab qhov ncua sij hawm yog txo los ntawm ntau dua 8 zaug hauv ib puag ncig ntom ntom, uas muaj chav zoo rau kev siv hauv kev lag luam xws li mobile games thiab wireless VR.
