Qhov tseeb, kev sib piv ntawm cov tswv yim 5G thiab WiFi tsis tsim nyog.Vim tias 5G yog "tiam thib tsib" ntawm kev sib txuas lus xov tooj ntawm tes, thiab WiFi suav nrog ntau "tiam" versions xws li 802.11/a/b/g/n/ac/ad/ax, nws zoo li qhov sib txawv ntawm Tesla thiab Tsheb ciav hlau. .
| Generation/IEEE Standard | txais yuav | Op.Standard zaus band | Linkrate tiag | Qhov siab tshaj Linkrate | Radius Coverage (hauv tsev) | Radius Coverage (Sab nraum zoov) |
| Txojsia | Xyoo 1997 | 2.4-2.5 GHz | 1 Mbit / s | 2 Mbit / s | ? | ? |
| 802.11 a | Xyoo 1999 | 5.15-5.35/5.45-5.725/5.725-5.865 GHz | 25 Mbit/s | 54mb ib | ≈30m | ≈ 45 m |
| 802.11 ib | Xyoo 1999 | 2.4-2.5 GHz | 6.5 Mbit / s | 11 Mbit/s | ≈30m | ≈100 m |
| 8 02,11g | Xyoo 2003 | 2.34-2.5GHz | 25 Mbit/s | 54 Mbit/s | ≈30m | ≈100 m |
| 802.11n ib | Xyoo 2009 | 2.4GHz lossis 5GHz bands | 300 Mbit / s (20MHz * 4 MIMO) | 600 Mbit / s (40MHz * 4 MIMO) | ≈70m | ≈250m |
| 802.11 Ib | Xyoo 2009 | 5.86-5.925GHz | 3 Mbit/s | 27 Mbit/s | ≈300m | ≈1000m |
| 802.11 ib | 2011.11 | 5 GHz | 433Mbit / s, 867Mbit / s (80MHz, 160MHz yeem) | 867Mbit/s, 1.73Gbit/s, 3.47Gbit/s, 6.93Gbit/s (8 MIMO. 160MHz) | ≈35m | |
| 802.11 ib | 2019.12 | 2.4 / 5 / 60 GHz | 4620 Mbps ib | 7 Gbps (6756.75Mbps) | ≈1-10m | |
| 802.11 ib | 2018.12 | 2.4 / 5 GHz | 10.53 Gbps Nws | 10 m | 100 m |
Ntau qhov dav, los ntawm tib qhov loj me, qhov sib txawv ntawm kev sib txuas lus ntawm tes (XG, X = 1,2,3,4,5) thiab Wifi peb siv niaj hnub no?
Qhov txawv ntawm XG thiab Wifi
Raws li ib tug neeg siv, kuv tus kheej kev paub yog tias Wifi pheej yig dua XG, thiab yog tias peb tsis quav ntsej tus nqi ntawm cov xov tooj cua thiab routers, peb tuaj yeem xav tias siv wifi txuas rau Is Taws Nem yog dawb.Txawm li cas los xij, feem ntau, cov nqi tsuas tuaj yeem cuam tshuam qee yam kev qhia.Yog tias koj siv lub tsev me me thiab txuas ntxiv mus rau hauv lub tebchaws thiab thoob ntiaj teb, nws yog XG.Tab sis muaj qhov sib txawv loj ntawm qhov loj thiab me me.
Txhawm rau piav qhia qhov sib txawv ntawm lawv, peb yuav tsum pib nrog cov kev cai.
Kev thov txawv
Kev sib tw
Nyob rau hauv rooj plaub ntawm Wifi thiab XG, qhov kev sib txawv ntawm lawv yog zoo ib yam li lub regional autonomy thiab centralization.Lawv ua rau lub tswv yim hais tias feem ntau Wifi nodes yog tsim los ntawm tus kheej (los yog tuam txhab, los yog lub nroog), thaum cov neeg ua hauj lwm ua XG lub hauv paus chaw nres tsheb nyob rau hauv lub teb chaws.
Nyob rau hauv lwm yam lus, nyob rau hauv wireless teeb liab kis tau tus mob, vim hais tias ib tug neeg routers tsis sib txuas lus nrog ib leeg thiab sib koom tib spectrum, cov ntaub ntawv kis tau tus mob tshaj Wifi yog kev sib tw.Hauv qhov sib piv, cov ntaub ntawv xa mus dhau XG tsis yog kev sib tw, yog qhov chaw nruab nrab ntawm kev teem sijhawm.
Tsawg technically, peb yuav tsis paub yog tias qhov kev sib tshuam tom ntej no dheev pom ib txoj kab ntev ntawm lub tsheb nrog lub teeb liab nyob rau pem hauv ntej ntawm peb thaum peb tsav tsheb tawm ntawm txoj kev.Txoj kev tsheb ciav hlau yuav tsis muaj teeb meem zoo li no;central dispatch system xa txhua yam.
Tsis pub twg paub
Nyob rau tib lub sijhawm, Wifi txuas nrog ntiag tug cable broadband.XG lub hauv paus chaw nres tsheb txuas nrog lub nraub qaum ntawm cov neeg ua haujlwm, yog li Wifi feem ntau muaj kev ceev ntiag tug thiab tsis tuaj yeem nkag mus yam tsis tau tso cai.
Mobility
Vim hais tias Wifi txuas nrog tus kheej broadband, tus kheej cable nkag mus rau qhov point yog tsau, thiab kab yog wired.Qhov no txhais tau hais tias wifi muaj me ntsis kev mus los thiab thaj chaw me me.Nws yog feem ntau tsuas yog tsim nyog los xav txog qhov cuam tshuam ntawm kev taug kev ceev ntawm cov teeb liab kis tau tus mob, thiab kev hloov ntawm tes tsis suav nrog.Txawm li cas los xij XG lub hauv paus chaw nres tsheb muaj kev txav mus los thiab kev hloov pauv ntawm tes, thiab cov khoom siv ceev xws li tsheb thiab tsheb ciav hlau yuav tsum xav txog.
Xws li kev sib tw / tsis muaj kev sib tw tsis pub lwm tus paub thiab kev txav mus los yuav ua rau muaj kev sib txawv ntawm kev ua haujlwm, thev naus laus zis thiab kev pabcuam, kev nkag mus, spectrum, ceev, thiab lwm yam.
Technical sib txawv
1. Spectrum / Access
Spectrum tej zaum yog qhov tshwm sim tam sim ntawd rau kev sib tw.
Qhov zaus spectrum siv los ntawm wifi yog (2.4GHz / 5G) yog ib qho tsis muaj ntawv tso cai spectrum, uas txhais tau hais tias nws tsis faib / auctioned rau cov tib neeg los yog tuam txhab, thiab txhua leej txhua tus / tuam txhab uas muag siv tau lawv cov wifi ntaus ntawv mus saib tau nws ntawm yuav.Lub spectrum siv los ntawm XG yog ib daim ntawv tso cai spectrum, thiab tsis muaj leej twg muaj cai siv cov spectrum no tsuas yog rau cov neeg khiav dej num uas tau txais qhov ntau.
Yog li ntawd, thaum koj qhib koj lub wifi, koj yuav pom cov npe wireless ntev heev;Feem ntau ntawm lawv yog 2.4GHz routers.Qhov no txhais tau hais tias qhov zaus band no yog congested heev, thiab tej zaum yuav muaj ntau lub suab zoo li cuam tshuam.
Qhov ntawd txhais tau tias yog tias tag nrho lwm cov thev naus laus zis zoo ib yam, Wifi SNR (lub teeb liab rau lub suab nrov piv) yuav qis dua rau cov xov tooj ntawm tes ntawm lub band no, uas yuav ua rau me me wifi kev pab them nqi thiab kev sib kis.Raws li qhov tshwm sim, cov txheej txheem wifi tam sim no tau nthuav dav mus rau 5GHz, 60GHz thiab lwm qhov cuam tshuam tsawg zaus.
Nrog xws li ib daim ntawv teev ntev, thiab cov zaus band ntawm wifi raug txwv, yuav muaj kev sib tw rau cov peev txheej channel.Yog li, cov tub ntxhais huab cua interface raws tu qauv ntawm wifi yog CSMA / CA (Cov neeg nqa khoom nkag siab ntau yam nkag / kev sib tsoo kom zam).nws ua qhov no los ntawm kev txheeb xyuas cov channel ua ntej xa thiab tos lub sijhawm random yog tias channel tsis khoom.Tab sis qhov kev kuaj pom tsis yog lub sijhawm tiag tiag, yog li nws tseem tuaj yeem muaj ob txoj hauv kev ua ke txhawm rau txheeb xyuas qhov tsis ua haujlwm spectrum ua ke thiab xa cov ntaub ntawv tib lub sijhawm.Tom qab ntawd muaj teeb meem kev sib tsoo tshwm sim, thiab txoj kev xa rov qab yuav raug siv los xa rov qab.
Nyob rau hauv XG, vim hais tias cov channel nkag tau muab faib los ntawm lub hauv paus chaw nres tsheb thiab cov kev cuam tshuam cuam tshuam tau txiav txim siab nyob rau hauv kev faib algorithm, qhov kev pab them nqi ntawm lub hauv paus chaw nres tsheb nrog tib lub tshuab yuav loj dua.Nyob rau tib lub sijhawm, nyob rau hauv cov teeb liab kis tau tus mob ua ntej, XG tau raug xa mus rau qhov chaw nres tsheb siab "kab", yog li tsis tas yuav muaj kev tshawb nrhiav channel ua ntej kis tau tus mob, thiab cov kev cai rau kev sib tsoo retransmission kuj tsawg heev.
Lwm qhov sib txawv tseem ceeb hais txog kev nkag mus yog XG tsis muaj tus password vim tias Cov Neeg Siv Khoom xav tau kev nkag mus rau tag nrho, thiab lawv siv tus kheej hauv SIM daim npav thiab them nyiaj los ntawm lub rooj vag xov tooj.Private wifi feem ntau xav tau tus password.
2.Kev pab them nqi
Raws li tau hais ua ntej, kev pab them nqi wifi feem ntau yog qis, hauv kev sib piv, chaw nres tsheb hauv paus yuav muaj kev pab cuam ntau dua vim nws lub zog xa hluav taws xob siab thiab cuam tshuam tsawg zaus.
Network ceev tej zaum yuav cuam tshuam los ntawm ntau yam, peb yuav tsis tham txog qhov ceev ntawm wifi thiab XG, qhov tseeb, yog qhov ua tau.
Tab sis hauv ib lub tuam txhab, piv txwv li, yog tias koj xav txuas ntxiv koj qhov kev pab cuam wifi los txiav koj cov neeg ua haujlwm.Ib qho wireless router yuav tsis ua haujlwm.Ib lub wireless router uas npog lub tuam txhab lub tsev yuav twv yuav raug hu ntau tshaj lub xov tooj cua kis tau tus mob tau teev tseg los ntawm lub teb chaws.Yog li, kev sib koom ua ke ntawm ntau lub routers xav tau, piv txwv li, lub wireless router yog lub luag haujlwm rau ib chav, thaum lwm tus routers siv tib lub npe thiab ua haujlwm ua ke los tsim lub wireless network thoob plaws hauv lub tsev.
Peb txhua tus paub tias ib leeg-node kev txiav txim siab qhov system yog qhov ua tau zoo tshaj plaws.uas yog, yog tias muaj ntau qhov kev sib koom tes hauv lub wireless network, txoj hauv kev zoo tshaj plaws yog kom muaj lub network-wide controller los pab txhua lub sijhawm router thiab faib sijhawm / chaw / spectrum cov peev txheej.
Hauv wifi network (WLAN), kev sib xyaw AP (Access point) thiab AC (Access Controller) hauv tsev router raug cais.AC tswj lub network thiab faib cov peev txheej.
Zoo, yuav ua li cas yog tias peb nthuav nws me ntsis.
Txog rau tag nrho lub tebchaws, ib leeg AC yog qhov tseeb tsis txaus cov ntaub ntawv ua haujlwm nrawm, tom qab ntawd txhua cheeb tsam xav tau AC zoo sib xws, thiab txhua AC kuj yuav tsum tau ua haujlwm ua ke sib txuas lus.Qhov no tsim lub core network.
Thiab txhua tus AP tsim ib lub xov tooj cua Access Network.
Kev sib txuas lus hauv xov tooj ntawm tes ntawm tus neeg teb xov tooj yog manly tsim los ntawm cov tub ntxhais network thiab kev nkag mus network.
Raws li qhia hauv qab no, qhov no puas zoo ib yam li lub wireless router network (WLAN)?
Los ntawm ib lub router, mus rau ntau lub router ntawm lub tuam txhab theem, lossis mus rau qhov chaw nres tsheb hauv lub tebchaws, qhov no yog qhov sib txawv thiab kev sib txuas ntawm wifi thiab XG.
Post lub sij hawm: May-20-2021