Ngokwenyani, ukuthelekisa phakathi kwe-5G ebonakalayo kunye ne-WiFi ayifanelekanga kakhulu.Ngenxa yokuba i-5G "sisizukulwana sesihlanu" senkqubo yonxibelelwano lweselula, kwaye i-WiFi ibandakanya ezininzi "isizukulwana" iinguqulelo ezifana ne-802.11/a/b/g/n/ac/ad/ax, kufana nokungafani phakathi kweTesla kunye noLoliwe. .
| Umgangatho wesizukulwana/IEEE | Yamkelwa | Op.Ibhendi yefrikhwensi eqhelekileyo | Unxulumano lokwenyani | Ubuninzi bonxulumano | I-Radius Coverage (Ngaphakathi) | I-Radius Coverage (Ngaphandle) |
| Ilifa | 1997 | 2.4-2.5GHz | 1 Mbhithi/s | 2 Mbhithi/s | ? | ? |
| 802.11a | 1999 | 5.15-5.35/5.45-5.725/5.725-5.865GHz | 25 Mbit/s | 54 Mbits | ≈30m | ≈45m |
| 802.11b | 1999 | 2.4-2.5GHz | 6.5 Mbit/s | 11 Mbit/s | ≈30m | ≈100m |
| 802.11g | 2003 | 2.34-2.5GHz | 25 Mbit/s | 54 Mbit/s | ≈30m | ≈100m |
| 802.11n | 2009 | 2.4GHz okanye 5GHz iibhendi | 300 Mbit/s (20MHz *4 MIMO) | 600 Mbit/s (40MHz*4 MIMO) | ≈70m | ≈250m |
| 802.11P | 2009 | 5.86-5.925GHz | 3 Mbit/s | 27 Mbit/s | ≈300m | ≈1000m |
| 802.11ac | 2011.11 | 5GHz | 433Mbit/s,867Mbit/s (80MHz,160MHz ngokuzithandela) | 867Mbit/s, 1.73Gbit/s, 3.47Gbit/s, 6.93Gbit/s (8 MIMO. 160MHz) | ≈35m | |
| 802.11ad | 2019.12 | 2.4/5/60GHz | 4620Mbps | 7Gbps(6756.75Mbps) | ≈1-10m | |
| 802.11ax | 2018.12 | 2.4/5GHz | 10.53Gbps | 10m | 100m |
Ngokubanzi ngakumbi, ukusuka kwinqanaba elifanayo, umahluko phakathi kwenkqubo yonxibelelwano lweselula (XG, X=1,2,3,4,5) kunye neWifi esiyisebenzisayo namhlanje?
Umahluko phakathi kweXG kunye neWifi
Njengomsebenzisi, amava am kukuba i-Wifi inexabiso eliphantsi kakhulu kune-XG, kwaye ukuba asiyihoyi ixabiso le-broadband eneentambo kunye neerotha, sinokucinga ukuba ukusebenzisa i-wifi ukuqhagamshela kwi-Intanethi kusimahla.Nangona kunjalo, kwiimeko ezininzi, amaxabiso anokubonisa kuphela izinto ezithile zobugcisa.Ukuba uthatha inethwekhi encinci yasekhaya kwaye uyandise kuzwelonke nakumazwe ngamazwe, yi-XG.Kodwa kukho umahluko omkhulu phakathi kwesi sikali esikhulu nesincinci.
Ukuchaza umahluko phakathi kwazo, kufuneka siqale ngeemfuneko.
Umahluko wemfuno
Ukhuphiswano
Kwimeko ye-Wifi kunye ne-XG, umahluko wezobugcisa phakathi kwabo ufana nokuzimela kwengingqi kunye ne-centralization.Bakhokelela kuluvo lokuba uninzi lweendawo zeWifi zakhiwe ngabucala (okanye inkampani, okanye isixeko), ngelixa abaSebenzi benza izikhululo zesiseko ze-XG kwilizwe.
Ngamanye amazwi, ekugqithiseni isignali engenazingcingo, kuba iirotha ezizimeleyo azinxibelelani kunye kwaye zabelana nge-spectrum efanayo, ukuhanjiswa kwedatha kwi-Wifi kuyakhuphisana.Ngokwahlukileyo, ukuhanjiswa kwedatha ngaphezulu kwe-XG akukhuphisani, kukucwangciswa kwezixhobo ezisembindini.
Ngaphantsi kobugcisa, asiyi kukwazi ukuba isiphambuka esilandelayo siza kubona ngokukhawuleza umgca omde weemoto ezinezibane ezibomvu phambi kwethu xa siqhuba ngaphandle kwendlela.Uloliwe akayi kuba naloo ngxaki;inkqubo ephakathi yokuthumela ithumela yonke into.
Ubumfihlo
Kwangaxeshanye, iWifi iqhagamshelwe kwibroadband yentambo yabucala.Isikhululo sesiseko se-XG siqhagamshelwe kuthungelwano lomqolo lwabaSebenzi, ngoko ke iWifi ineemfuno zabucala kwaye ayinakufikelelwa ngaphandle kwemvume.
Ukushukuma
Ngenxa yokuba i-Wifi iqhagamshelwe kwi-broadband yabucala, indawo yofikelelo yentambo yobuqu ilungisiwe, kwaye umgca unengcingo.Oku kuthetha ukuba i-wifi inemfuno encinci yokuhamba kunye nendawo encinci yokugubungela.Ngokuqhelekileyo kuyimfuneko kuphela ukuqwalasela impembelelo yesantya sokuhamba kwi-transmission yesignali, kunye nokutshintshwa kweseli akuqwalaselwa.Nangona kunjalo isikhululo sesiseko se-XG sinokuhamba okuphezulu kunye neemfuno zokutshintsha iiseli, kunye nezinto ezinesantya esiphezulu ezifana neemoto kunye nezitimela kufuneka ziqwalaselwe.
Iimfuno ezilolo hlobo ezikhuphisanayo / ezingenakukhuphisana zabucala kunye nokuhamba ziya kuzisa uluhlu lweeyantlukwano ukusuka kumsebenzi, iteknoloji kunye nokugubungela, ukufikelela, i-spectrum, isantya, njl.
Umahluko wobugcisa
1. Spectrum / Access
I-Spectrum mhlawumbi yeyona nto ibangela ukhuphiswano.
I-frequency spectrum esetyenziswa yi-wifi yi (2.4GHz/5G) yimbonakalo engagunyaziswanga, nto leyo ethetha ukuba ayinikwanga/ifandesi kubantu okanye kwiinkampani, kwaye nabani na/ishishini linokusebenzisa isixhobo sabo se-wifi ukufikelela kuyo ngokuthanda.I-spectrum esetyenziswa yi-XG yi-spectrum enelayisensi, kwaye akukho mntu wumbi unelungelo lokusebenzisa le spectrum ngaphandle kwaBasebenzi abafumene uluhlu.
Ke ngoko, xa uvula i-wifi yakho, uya kubona uluhlu olude kakhulu lwamacingo;uninzi lwazo zii-router ze-2.4GHz.Oku kuthetha ukuba le bhendi yefrikhwensi ixinana kakhulu, kwaye kusenokubakho uphazamiseko oluninzi olufana nengxolo.
Oko kuthetha ukuba zonke ezinye iiteknoloji ziyafana, i-Wifi SNR (isignali kwi-noise ratio) iya kuba sezantsi kwiifowuni eziphathwayo kule bhendi, okuya kubangela ukukhutshwa kwe-wifi encinci kunye nokuhanjiswa.Ngenxa yoko, iiprothokholi zangoku ze-wifi ziyanda ukuya kwi-5GHz, 60GHz kunye nezinye iibhendi zokuphazamiseka okuphantsi.
Ngoluhlu olude olunjalo, kunye nebhendi ye-frequency ye-wifi ilinganiselwe, kuya kubakho ukhuphiswano lwezibonelelo zetshaneli.Ke, eyona ndlela iphambili yojongano lomoya iprotocol ye-wifi yiCSMA/CA (Carrier sense multiple access/ avoidance).ikwenza oku ngokujonga itshaneli phambi kokuba ithumele kwaye ilinde ixesha elingenamkhethe ukuba ijelo lixakekile.Kodwa ukufunyaniswa akusilo ixesha lokwenyani, ngoko kusenokwenzeka ukuba kukho iindlela ezimbini kunye ukuze zibone i-spectrum engasebenzi kunye kunye nokuthumela idatha ngexesha elinye.Emva koko kwenzeka ingxaki yongquzulwano, kwaye indlela yokudlulisela kwakhona iya kusetyenziselwa ukuthumela kwakhona.
Kwi-XG, ngenxa yokuba umjelo wokufikelela unikezelwe kwisikhululo esisisiseko kwaye izinto zokuphazamiseka zicatshangelwa kwi-algorithm yolwabiwo, indawo yokugubungela isikhululo sesiseko kunye neteknoloji efanayo iya kuba nkulu.Ngexesha elifanayo, kwi-transmission yesignali ngaphambili, i-XG inikezelwe kwisikhululo sesiseko esizinikezeleyo "umgca", ngoko ke akukho mfuneko yokufunyanwa kwesiteshi ngaphambi kokudluliselwa, kwaye iimfuno zokutshintshwa kwe-collision nazo ziphantsi kakhulu.
Omnye umahluko obalulekileyo malunga nofikelelo kukuba i-XG ayinalo igama eliyimfihlo kuba abaSebenzisi bafuna ufikelelo olugcwele kwisiza, kwaye basebenzisa isazisi kwiSIM khadi kwaye bahlawule ngesango lokurhafisa.I-wifi yabucala idla ngokufuna igama lokugqitha.
2.Ukhuseleko
Njengoko bekutshiwo ngaphambili, ukhuselo lwe-wifi lusezantsi ngokubanzi, xa kuthelekiswa, isikhululo esisisiseko siya kuba nesigqubuthelo esikhulu kakhulu ngenxa yokuba amandla aso othumelo oluphezulu kunye nokuphazamiseka kwebhendi ephantsi.
Isantya senethiwekhi sinokuchaphazeleka ngezinto ezininzi, asiyi kuxoxa ngesantya se-wifi kunye ne-XG, enyanisweni, nokuba kunokwenzeka.
Kodwa kwisakhiwo senkampani, umzekelo, ukuba ufuna ukwandisa ukhuseleko lwe-wifi ukuqhawula abasebenzi bakho.I-router enye engenazingcingo ngokuqinisekileyo ayinakusebenza.Irutha enye engenazingcingo egquma isakhiwo senkampani ngokuqinisekileyo iya kudlula amandla osasazo kanomathotholo achazwe lilizwe.Ngoko ke, inethiwekhi edibeneyo yee-routers ezininzi iyadingeka, umzekelo, i-router engenazintambo inoxanduva lwegumbi elinye, ngelixa ezinye ii-routers zisebenzisa igama elifanayo kwaye zisebenza kunye ukwenza inethiwekhi engenazintambo kwisakhiwo sonke.
Sonke siyazi ukuba inkqubo yokwenza izigqibo ze-single-node yeyona nkqubo isebenzayo.oko kukuthi, ukuba kukho intsebenziswano ye-multi-node kwinethiwekhi engenazintambo, eyona ndlela isebenzayo kukuba nomlawuli wenethiwekhi ngokubanzi ukunceda ishedyuli nganye ye-router kunye nokwabela ixesha / indawo / izibonelelo ze-spectrum.
Kwinethiwekhi ye-wifi (WLAN), i-AP edibeneyo (indawo yokufikelela) kunye ne-AC (uMlawuli wokufikelela) kwi-router yasekhaya iyahlukana.I-AC ilawula uthungelwano kwaye yabe izibonelelo.
Kulungile, ukuba siyayandisa kancinane.
Ukuya kuthi ga kulo lonke ilizwe, i-AC enye ngokucacileyo akwanelanga isantya sokucwangcisa idatha, ngoko ke ummandla ngamnye ufuna i-AC efanayo, kwaye i-AC nganye kufuneka isebenze kunye ukuze inxibelelane.Oku kwenza inethiwekhi engundoqo.
Kwaye i-AP nganye yenza i-Radio Access Network.
Uthungelwano lonxibelelwano lweselula lomsebenzisi luqulunqwe yindoda engundoqo yenethiwekhi kunye nenethiwekhi yokufikelela.
Njengoko kubonisiwe ngezantsi, ngaba oku kufana nenethiwekhi ye-wireless router (WLAN)?
Ukusuka kwi-router enye, ukuya kwi-multi-router kwinqanaba lenkampani, okanye kwisiseko sesikhululo sesikhululo kwinqanaba likazwelonke, oku mhlawumbi umahluko kunye nokudibanisa phakathi kwe-wifi kunye ne-XG.
Ixesha lokuposa: May-20-2021