I-WiFi 7 (i-Wi-Fi 7) ngumgangatho we-Wi-Fi wesizukulwana esilandelayo. Ngokuhambelana ne-IEEE 802.11, umgangatho omtsha ohlaziyiweyo we-IEEE 802.11be – Extremely High Throughput (EHT) uza kukhutshwa
I-Wi-Fi 7 yazisa ubuchwepheshe obufana ne-bandwidth ye-320MHz, i-4096-QAM, i-Multi-RU, ukusebenza kwe-multi-link, i-MU-MIMO ephuculweyo, kunye nentsebenziswano ye-multi-AP ngokusekelwe kwi-Wi-Fi 6, okwenza i-Wi-Fi 7 ibe namandla ngakumbi kune-Wi-Fi 7. Kuba i-Wi-Fi 6 iya kubonelela ngamazinga aphezulu okudluliselwa kwedatha kunye nokubambezeleka okuphantsi. I-Wi-Fi 7 kulindeleke ukuba ixhase i-output ukuya kuthi ga kwi-30Gbps, malunga nezihlandlo ezithathu kune-Wi-Fi 6.
Iimpawu Ezintsha Ezixhaswa yi-Wi-Fi 7
- Inkxaso ephezulu ye-320MHz bandwidth
- Xhasa indlela ye-Multi-RU
- Yazisa itekhnoloji yokuguqula i-4096-QAM ephezulu
- Yazisa indlela yokusebenzisana kwamakhonkco amaninzi e-Multi-Link
- Xhasa imithombo yedatha engaphezulu, uphuculo lomsebenzi we-MIMO
- Xhasa ucwangciso lwentsebenziswano phakathi kwee-AP ezininzi
- Iimeko zesicelo se-Wi-Fi 7
1. Kutheni i-Wi-Fi 7?
Ngophuhliso lwetekhnoloji ye-WLAN, iintsapho kunye namashishini axhomekeke ngakumbi kwi-Wi-Fi njengendlela ephambili yokufikelela kwinethiwekhi. Kwiminyaka yakutshanje, usetyenziso olutsha luneemfuno eziphezulu zokufikelela kunye nokulibaziseka, ezifana nevidiyo ye-4K kunye ne-8K (izinga lokudlulisela linokufikelela kwi-20Gbps), i-VR/AR, imidlalo (imfuneko yokulibaziseka ingaphantsi kwe-5ms), iofisi ekude, kunye neenkomfa zevidiyo ezikwi-intanethi kunye ne-cloud computing, njl. Nangona ukukhutshwa kwamva nje kwe-Wi-Fi 6 kugxile kumava omsebenzisi kwiimeko zoxinano oluphezulu, ayikakwazi ukuhlangabezana ngokupheleleyo neemfuno eziphezulu ezikhankanyiweyo apha ngasentla zokufikelela kunye nokulibaziseka. (Wamkelekile ukuba unikele ingqalelo kwiakhawunti esemthethweni: injineli yenethiwekhi uAaron)
Ngenxa yoku, umbutho oqhelekileyo we-IEEE 802.11 sele uza kukhupha i-IEEE 802.11be EHT entsha ehlaziyiweyo, eyi-Wi-Fi 7.
2. Ixesha lokukhululwa kwe-Wi-Fi 7
Iqela elisebenzayo le-IEEE 802.11be EHT lasekwa ngoMeyi ka-2019, kwaye uphuhliso lwe-802.11be (Wi-Fi 7) lusaqhubeka. Lonke umgangatho weprotocol uza kukhutshwa kwiinguqulelo ezimbini, kwaye iRelease1 kulindeleke ukuba ikhuphe inguqulelo yokuqala ngo-2021. I-Draft Draft1.0 kulindeleke ukuba ikhuphe umgangatho ekupheleni kuka-2022; iRelease2 kulindeleke ukuba iqale ekuqaleni kuka-2022 kwaye igqibezele ukukhutshwa okuqhelekileyo ekupheleni kuka-2024.
3. I-Wi-Fi 7 xa ithelekiswa ne-Wi-Fi 6
Ngokusekelwe kumgangatho we-Wi-Fi 6, i-Wi-Fi 7 yazisa ubuchwepheshe obutsha obuninzi, obubonakala kakhulu kwezi zinto zilandelayo:
4. Iimpawu ezintsha ezixhaswa yi-Wi-Fi 7
Injongo yeprotocol ye-Wi-Fi 7 kukunyusa izinga lokuphuma kwenethiwekhi ye-WLAN ukuya kwi-30Gbps kunye nokubonelela ngeziqinisekiso zokufikelela kwi-low-latency. Ukuze kuhlangatyezwane nale njongo, yonke le protocol yenze utshintsho olufanayo kwi-PHY layer kunye ne-MAC layer. Xa kuthelekiswa neprotocol ye-Wi-Fi 6, utshintsho oluphambili lobuchwephesha olubangelwe yiprotocol ye-Wi-Fi 7 zezi zilandelayo:
Inkxaso yeBandwidth ephezulu ye-320MHz
I-spectrum engenalayisenisi kwiibhendi zefrikhwensi ze-2.4GHz kunye ne-5GHz incinci kwaye igcwele. Xa i-Wi-Fi ekhoyo isebenzisa usetyenziso oluvelayo olufana ne-VR/AR, ngokuqinisekileyo iya kujongana nengxaki ye-QoS ephantsi. Ukuze kufezekiswe injongo yokufikelela okuphezulu okungaphantsi kwe-30Gbps, i-Wi-Fi 7 iya kuqhubeka nokwazisa ibhendi yefrikhwensi ye-6GHz kwaye yongeze iindlela ezintsha ze-bandwidth, kubandakanya i-240MHz eqhubekayo, i-160+80MHz engaqhubekekiyo, i-320 MHz eqhubekayo kunye ne-160+160MHz engaqhubekekiyo. (Wamkelekile ukuba unikele ingqalelo kwiakhawunti esemthethweni: injineli yenethiwekhi uAaron)
Xhasa iMulti-RU Mechanism
Kwi-Wi-Fi 6, umsebenzisi ngamnye unokuthumela okanye afumane iifreyimu kuphela kwi-RU ethile enikiweyo, nto leyo ethintela kakhulu ukuguquguquka kokucwangciswa kwezixhobo ze-spectrum. Ukusombulula le ngxaki nokuphucula ngakumbi ukusebenza kakuhle kwe-spectrum, i-Wi-Fi 7 ichaza indlela evumela ukuba ii-RU ezininzi zabelwe umsebenzisi omnye. Kakade ke, ukuze kulinganiswe ubunzima bokusetyenziswa kunye nokusetyenziswa kwe-spectrum, le protocol yenze imida ethile ekudibaneni kwee-RU, oko kukuthi: ii-RU ezincinci (ii-RU ezincinci kune-242-Tone) zinokudityaniswa kuphela nee-RU ezincinci, kwaye ii-RU ezinkulu (ii-RU ezinkulu kune-242-Tone) zinokudityaniswa kuphela nee-RU ezinkulu, kwaye ii-RU ezincinci kunye nee-RU ezinkulu azivumelekanga ukuba zixutywe.
Yazisa itekhnoloji yokuguqula i-4096-QAM ephezulu
Eyona ndlela iphezulu yokuguqulaI-Wi-Fi 6yi-1024-QAM, apho iimpawu ze-modulation zithwala iibhithi ezili-10. Ukuze kunyuswe izinga, i-Wi-Fi 7 iza kungenisa i-4096-QAM, ukuze iimpawu ze-modulation zithwale iibhithi ezili-12. Phantsi kwekhowudi efanayo, i-Wi-Fi 7's 4096-QAM inokufikelela ekunyukeni kwezinga ngama-20% xa kuthelekiswa ne-Wi-Fi 6's 1024-QAM. (Wamkelekile ukuba unike ingqalelo kwiakhawunti esemthethweni: injineli yenethiwekhi uAaron)
Yazisa indlela yokusebenzisana kwamakhonkco amaninzi e-Multi-Link
Ukuze kufezekiswe ukusetyenziswa ngokufanelekileyo kwazo zonke izixhobo ze-spectrum ezikhoyo, kukho imfuneko engxamisekileyo yokuseka ulawulo olutsha lwe-spectrum, ulungelelwaniso kunye neendlela zokudlulisela kwi-2.4 GHz, 5 GHz kunye ne-6 GHz. Iqela elisebenzayo lichaze ubuchwepheshe obunxulumene nokuhlanganiswa kwee-multi-link, ikakhulu kubandakanya uyilo lwe-MAC lokuhlanganiswa kwee-multi-link okuphuculweyo, ukufikelela kwiitshaneli zee-multi-link, ukuhanjiswa kwee-multi-link kunye nezinye iiteknoloji ezinxulumene noko.
Xhasa imithombo yedatha engaphezulu, uphuculo lomsebenzi we-MIMO
Kwi-Wi-Fi 7, inani lemithombo yedatha yendawo linyukile ukusuka kwi-8 ukuya kwi-16 kwi-Wi-Fi 6, nto leyo ngokwethiyori enokuthi iphindwe kabini kunezinga lokudluliselwa kwamandla. Ukuxhasa imithombo yedatha engaphezulu kuya kuzisa ne-MIMO enamandla ngakumbi, nto leyo ethetha ukuba imithombo yedatha eli-16 inganikezelwa kungekuphela kwendawo yokufikelela enye, kodwa kwiindawo zokufikelela ezininzi ngaxeshanye, nto leyo ethetha ukuba ii-AP ezininzi kufuneka zisebenzisane ukuze zisebenze.
Xhasa ucwangciso lwentsebenziswano phakathi kwee-AP ezininzi
Okwangoku, ngaphakathi kwesakhelo seprotocol ye-802.11, akukho ntsebenziswano ingako phakathi kwee-AP. Imisebenzi eqhelekileyo ye-WLAN efana nokulungisa ngokuzenzekelayo kunye nokuzulazula okukrelekrele ziimpawu ezichazwe ngumthengisi. Injongo yokusebenzisana phakathi kwe-AP kukuphucula ukukhethwa kwetshaneli, ukulungisa umthwalo phakathi kwee-AP, njl.njl., ukuze kufezekiswe injongo yokusetyenziswa ngokufanelekileyo kunye nokwabiwa ngokulinganayo kwezixhobo zerediyo. Ucwangciso oludibeneyo phakathi kwee-AP ezininzi kwi-Wi-Fi 7, kubandakanya ucwangciso oludibeneyo phakathi kweeseli kwindawo yexesha kunye nendawo yefrikhwensi, ulungelelwaniso lokuphazamiseka phakathi kweeseli, kunye ne-MIMO esasazwe, kunokunciphisa ngempumelelo ukuphazamiseka phakathi kwee-AP, kuphucule kakhulu ukusetyenziswa kwezixhobo zojongano lomoya.
Kukho iindlela ezininzi zokulungelelanisa ucwangciso phakathi kwee-AP ezininzi, kuquka i-C-OFDMA (Coordinated Orthogonal Frequency-Division Multiple Access), i-CSR (Coordinated Spatial Reuse), i-CBF (Coordinated Beamforming), kunye ne-JXT (Joint Transmission).
5. Iimeko zesicelo se-Wi-Fi 7
Iimpawu ezintsha ezivezwe yi-Wi-Fi 7 ziya kunyusa kakhulu izinga lokudluliselwa kwedatha kwaye zibonelele nge-latency ephantsi, kwaye ezi zibonelelo ziya kuba luncedo ngakumbi kwizicelo ezintsha, ngolu hlobo lulandelayo:
- Ukusasazwa kwevidiyo
- Ingxoxo yevidiyo/yelizwi
- Imidlalo engenazingcingo
- Intsebenziswano yexesha langempela
- Ikhompyutha yeLifu/yoMda
- I-intanethi yezinto zemizi-mveliso
- I-AR/VR enzulu
- amayeza asebenzisanayo
Ixesha lokuthumela: Februwari-20-2023