I-WiFi 7 (i-Wi-Fi 7) iyindinganiso ye-Wi-Fi yesizukulwane esilandelayo. Ngokuhambisana ne-IEEE 802.11, kuzokhishwa indinganiso entsha ebuyekeziwe ye-IEEE 802.11be – Extremely High Throughput (EHT)
I-Wi-Fi 7 yethula ubuchwepheshe obufana ne-bandwidth engu-320MHz, i-4096-QAM, i-Multi-RU, ukusebenza kwezixhumanisi eziningi, i-MU-MIMO ethuthukisiwe, kanye nokubambisana kwe-multi-AP ngokusekelwe ku-Wi-Fi 6, okwenza i-Wi-Fi 7 ibe namandla kakhulu kune-Wi-Fi 7. Ngoba i-Wi-Fi 6 izohlinzeka ngamanani aphezulu okudlulisa idatha kanye nokubambezeleka okuphansi. I-Wi-Fi 7 kulindeleke ukuthi isekele i-throughput efika ku-30Gbps, cishe ngokuphindwe kathathu kune-Wi-Fi 6.
Izici Ezintsha Ezisekelwa yi-Wi-Fi 7
- Sekela umkhawulokudonsa ophezulu we-320MHz
- Sekela indlela ye-Multi-RU
- Yethula ubuchwepheshe bokuguquguqula obusezingeni eliphezulu be-4096-QAM
- Yethula indlela yokuxhumanisa ama-Multi-Link amaningi
- Sekela ukusakazwa kwedatha okwengeziwe, ukuthuthukiswa komsebenzi we-MIMO
- Sekela ukuhlela ngokubambisana phakathi kwama-AP amaningi
- Izimo Zohlelo Lokusebenza lwe-Wi-Fi 7
1. Kungani i-Wi-Fi 7?
Ngokuthuthuka kobuchwepheshe be-WLAN, imindeni namabhizinisi bathembele kakhulu kwi-Wi-Fi njengendlela eyinhloko yokufinyelela inethiwekhi. Eminyakeni yamuva nje, izinhlelo zokusebenza ezintsha zinezidingo eziphezulu zokudlulisa kanye nokulibaziseka, njengevidiyo engu-4K kanye ne-8K (izinga lokudlulisa lingafinyelela ku-20Gbps), i-VR/AR, imidlalo (imfuneko yokulibaziseka ingaphansi kwama-5ms), ihhovisi elikude, kanye ne-video conferencing eku-inthanethi kanye ne-cloud computing, njll. Nakuba ukukhishwa kwakamuva kwe-Wi-Fi 6 kugxile kokuhlangenwe nakho komsebenzisi ezimweni ezinabantu abaningi, akukakwazi ukuhlangabezana ngokugcwele nezidingo eziphakeme ezishiwo ngenhla zokudlulisa kanye nokubambezeleka. (Siyakwamukela ukunaka i-akhawunti esemthethweni: unjiniyela wenethiwekhi u-Aaron)
Ngenxa yalokhu, inhlangano ejwayelekile ye-IEEE 802.11 isizokhipha i-IEEE 802.11be EHT entsha ebuyekeziwe, okuyi-Wi-Fi 7.
2. Isikhathi sokukhishwa kwe-Wi-Fi 7
Iqembu elisebenzayo le-IEEE 802.11be EHT lasungulwa ngoMeyi 2019, kanti ukuthuthukiswa kwe-802.11be (Wi-Fi 7) kusaqhubeka. Lonke izinga lephrothokholi lizokhishwa ngokukhishwa okubili, kanti i-Release1 kulindeleke ukuthi ikhiphe inguqulo yokuqala ngo-2021. I-Draft Draft1.0 kulindeleke ukuthi ikhiphe izinga ekupheleni kuka-2022; i-Release2 kulindeleke ukuthi iqale ekuqaleni kuka-2022 futhi iqedele ukukhishwa okujwayelekile ekupheleni kuka-2024.
3. I-Wi-Fi 7 uma iqhathaniswa ne-Wi-Fi 6
Ngokusekelwe kuzinga le-Wi-Fi 6, i-Wi-Fi 7 yethula ubuchwepheshe obusha obuningi, obubonakala kakhulu ku:
4. Izici Ezintsha Ezisekelwa yi-Wi-Fi 7
Umgomo wephrothokholi ye-Wi-Fi 7 ukwandisa izinga lokuphuma kwenethiwekhi ye-WLAN liye ku-30Gbps nokunikeza iziqinisekiso zokufinyelela kokubambezeleka okuphansi. Ukuze kuhlangatshezwane nalo mgomo, yonke iphrothokholi yenze izinguquko ezifanayo kungqimba ye-PHY kanye nengqimba ye-MAC. Uma kuqhathaniswa nephrothokholi ye-Wi-Fi 6, izinguquko ezinkulu zobuchwepheshe ezilethwe yiphrothokholi ye-Wi-Fi 7 yilezi ezilandelayo:
Ukusekela Ububanzi Bomkhawulokudonsa Obukhulu Be-320MHz
I-spectrum engenalayisensi kuma-frequency band angu-2.4GHz kanye no-5GHz ilinganiselwe futhi igcwele. Uma i-Wi-Fi ekhona isebenzisa izinhlelo zokusebenza ezintsha ezifana ne-VR/AR, izobhekana nenkinga ye-QoS ephansi. Ukuze kufezwe umgomo wokusebenzisa i-frequency band okungenani engu-30Gbps, i-Wi-Fi 7 izoqhubeka nokwethula i-frequency band engu-6GHz futhi yengeze izindlela ezintsha ze-bandwidth, kufaka phakathi i-continuous 240MHz, non-continuous 160+80MHz, continuous 320 MHz kanye non-continuous 160+160MHz. (Siyakwamukela ukunaka i-akhawunti esemthethweni: unjiniyela wenethiwekhi u-Aaron)
Sekela i-Multi-RU Mechanism
Ku-Wi-Fi 6, umsebenzisi ngamunye angathumela noma amukele ozimele kuphela ku-RU ethile enikeziwe, okunciphisa kakhulu ukuguquguquka kokuhlela izinsiza ze-spectrum. Ukuze kuxazululwe le nkinga futhi kuthuthukiswe ukusebenza kahle kwe-spectrum, i-Wi-Fi 7 ichaza indlela evumela ama-RU amaningi ukuthi abelwe umsebenzisi oyedwa. Vele, ukuze kulinganiswe ubunzima bokusetshenziswa kanye nokusetshenziswa kwe-spectrum, le phrothokholi yenze imikhawulo ethile ekuhlanganisweni kwama-RU, okungukuthi: ama-RU amancane (ama-RU amancane kune-242-Tone) angahlanganiswa kuphela nama-RU amancane, kanti ama-RU amakhulu (ama-RU amakhulu kune-242-Tone noma alingana nawo) angahlanganiswa kuphela nama-RU amakhulu, kanti ama-RU amancane nama-RU amakhulu awavunyelwe ukuxutshwa.
Yethula ubuchwepheshe bokuguquguqula obusezingeni eliphezulu be-4096-QAM
Indlela yokuguqula ephezulu kakhuluI-Wi-Fi 6yi-1024-QAM, lapho izimpawu zokuguquguquka ziphethe ama-bits ayi-10. Ukuze kukhuliswe izinga, i-Wi-Fi 7 izokwethula i-4096-QAM, ukuze izimpawu zokuguquguquka zithwale ama-bits ayi-12. Ngaphansi kokufaka ikhodi okufanayo, i-Wi-Fi 7's 4096-QAM ingafinyelela ukwanda kwezinga ngo-20% uma kuqhathaniswa ne-Wi-Fi 6's 1024-QAM. (Siyakwamukela ukunaka i-akhawunti esemthethweni: unjiniyela wenethiwekhi u-Aaron)
Yethula indlela yokuxhumanisa ama-Multi-Link amaningi
Ukuze kufezwe ukusetshenziswa kahle kwazo zonke izinsiza ze-spectrum ezitholakalayo, kunesidingo esiphuthumayo sokusungula izindlela ezintsha zokuphathwa kwe-spectrum, ukuxhumanisa kanye nokudlulisa ama-2.4 GHz, 5 GHz kanye ne-6 GHz. Iqembu elisebenzayo lichaze ubuchwepheshe obuhlobene nokuhlanganiswa kwezixhumanisi eziningi, ikakhulukazi okuhlanganisa ukwakheka kwe-MAC kokuhlanganiswa kwezixhumanisi eziningi okuthuthukisiwe, ukufinyelela kweziteshi zezixhumanisi eziningi, ukudluliselwa kwezixhumanisi eziningi kanye nobunye ubuchwepheshe obuhlobene.
Sekela ukusakazwa kwedatha okwengeziwe, ukuthuthukiswa komsebenzi we-MIMO
Ku-Wi-Fi 7, inani lemifudlana yendawo likhuphuke lisuka ku-8 laya ku-16 ku-Wi-Fi 6, okuthi ngokwengqondo liphindwe kabili izinga lokudlulisa elingokoqobo. Ukusekela imifudlana eminingi yedatha kuzoletha ne-MIMO enezici ezinamandla kakhulu, okusho ukuthi imifudlana yedatha engu-16 inganikezwa hhayi ngendawo yokufinyelela eyodwa, kodwa ngendawo yokufinyelela eminingi ngesikhathi esisodwa, okusho ukuthi ama-AP amaningi kudingeka abambisane ukuze asebenze.
Sekela ukuhlela ngokubambisana phakathi kwama-AP amaningi
Njengamanje, ngaphakathi kohlaka lwephrothokholi ye-802.11, empeleni akukho ukubambisana okukhulu phakathi kwama-AP. Imisebenzi evamile ye-WLAN efana nokuhlela okuzenzakalelayo kanye nokuzulazula okuhlakaniphile yizici ezichazwe ngabathengisi. Inhloso yokubambisana phakathi kwama-AP iwukwenza ngcono ukukhethwa kweziteshi kuphela, ukulungisa umthwalo phakathi kwama-AP, njll., ukuze kufezwe injongo yokusetshenziswa kahle kanye nokwabiwa okulinganiselayo kwezinsizakusebenza zemvamisa yomsakazo. Ukuhlela okuhlelekile phakathi kwama-AP amaningi ku-Wi-Fi 7, kufaka phakathi ukuhlela okuhlelekile phakathi kwamaseli kusizinda sesikhathi kanye nesizinda semvamisa, ukuxhumanisa ukuphazamiseka phakathi kwamaseli, kanye ne-MIMO esatshalaliswa, kunganciphisa ngempumelelo ukuphazamiseka phakathi kwama-AP, kuthuthukise kakhulu ukusetshenziswa kwezinsizakusebenza zesikhombikubona somoya.
Kunezindlela eziningi zokuxhumanisa ukuhlela phakathi kwama-AP amaningi, okuhlanganisa i-C-OFDMA (Coordinated Orthogonal Frequency-Division Multiple Access), i-CSR (Coordinated Spatial Reuse), i-CBF (Coordinated Beamforming), kanye ne-JXT (Joint Transmission).
5. Izimo Zokusebenza ze-Wi-Fi 7
Izici ezintsha ezethulwe yi-Wi-Fi 7 zizokwandisa kakhulu izinga lokudluliswa kwedatha futhi zinikeze ukubambezeleka okuphansi, futhi lezi zinzuzo zizoba usizo kakhulu ezinhlelweni ezintsha, kanje:
- Ukusakaza kwevidiyo
- Ingqungquthela Yevidiyo/Yezwi
- Imidlalo engenantambo
- Ukubambisana kwesikhathi sangempela
- Ikhompyutha Yamafu/Edge
- I-inthanethi Yezinto Zezimboni
- I-AR/VR ejulile
- i-telemedicine esebenzisana nayo
Isikhathi sokuthunyelwe: Feb-20-2023