I-WiFi 7 (i-Wi-Fi 7) sisizukulwana esilandelayo somgangatho we-Wi-Fi.Ngokuhambelana ne-IEEE 802.11, umgangatho omtsha ohlaziyiweyo we-IEEE 802.11be - Ukugqithisa okuphezulu kakhulu (EHT) kuya kukhutshwa
I-Wi-Fi 7 yazisa itekhnoloji efana ne-320MHz bandwidth, 4096-QAM, Multi-RU, i-multi-link operation, i-MU-MIMO ephuculweyo, kunye nentsebenziswano ye-multi-AP kwisiseko se-Wi-Fi 6, eyenza i-Wi-Fi 7 ibe namandla ngakumbi. kune-Wi-Fi 7. Ngenxa yokuba i-Wi-Fi 6 iya kubonelela ngamazinga aphezulu okudlulisa idatha kunye ne-latency ephantsi.I-Wi-Fi 7 kulindeleke ukuba ixhase i-throughput ukuya kuthi ga kwi-30Gbps, malunga nokuphindaphinda kathathu kwe-Wi-Fi 6.
Iimpawu eziNtsha eziXhaswa yi-Wi-Fi 7
- Inkxaso ephezulu ye-320MHz bandwidth
- Inkxaso ye-Multi-RU indlela
- Yazisa itekhnoloji yokumodareyitha ye-4096-QAM ephezulu
- Yazisa iMulti-Link yonxibelelwano oluninzi
- Xhasa imijelo yedatha engaphezulu, ukuphuculwa komsebenzi we-MIMO
- Ukuxhasa ukucwangciswa kwentsebenziswano phakathi kwee-AP ezininzi
- Iimeko zosetyenziso lwe-Wi-Fi 7
1. Kutheni iWi-Fi 7?
Ngophuhliso lwetekhnoloji ye-WLAN, iintsapho kunye namashishini axhomekeke ngakumbi nangakumbi kwi-Wi-Fi njengeyona ndlela iphambili yokufikelela kwinethiwekhi.Kwiminyaka yakutshanje, izicelo ezitsha zineemfuno eziphezulu zokudlula kunye nokulibaziseka, njengevidiyo ye-4K kunye ne-8K (izinga lokudluliselwa lingafikelela kwi-20Gbps), i-VR / AR, imidlalo (imfuneko yokulibaziseka ingaphantsi kwe-5ms), i-ofisi ekude, kunye ne-intanethi ye-intanethi yenkomfa. kunye ne-computing yefu, njl. Nangona ukukhutshwa kwamva nje kwe-Wi-Fi 6 kugxininise kumava omsebenzisi kwiimeko ezixinzelelekileyo, kusengenakukwazi ukuhlangabezana ngokupheleleyo neemfuno eziphezulu ezikhankanywe ngasentla kwi-throughput kunye ne-latency.(Wamkelekile ukuba ubeke ingqalelo kwiakhawunti esemthethweni: injineli yenethiwekhi uAron)
Ukuza kuthi ga ngoku, umbutho osemgangathweni we-IEEE 802.11 sele uza kukhulula umgangatho omtsha ohlaziyiweyo we-IEEE 802.11be EHT, onguWi-Fi 7.
2. Ixesha lokukhutshwa kweWi-Fi 7
Iqela elisebenzayo le-IEEE 802.11be EHT lasekwa ngoMeyi 2019, kwaye uphuhliso lwe-802.11be (Wi-Fi 7) lusaqhubeka.Umgangatho opheleleyo weprotocol uya kukhutshwa kwiiReleases ezimbini, kwaye i-Release1 kulindeleke ukuba ikhuphe inguqulo yokuqala kwi-2021 i-Draft Draft1.0 kulindeleke ukuba ikhulule umgangatho ekupheleni kwe-2022;I-Release2 kulindeleke ukuba iqale ekuqaleni kuka-2022 kwaye igqibezele ukukhutshwa okusemgangathweni ekupheleni kuka-2024.
3. Wi-Fi 7 vs Wi-Fi 6
Ngokusekwe kumgangatho we-Wi-Fi 6, i-Wi-Fi 7 yazisa ubuchwephesha obuninzi obutsha, obubonakaliswa ikakhulu ku:
4. Iimpawu ezintsha ezixhaswa yi-Wi-Fi 7
Injongo ye-protocol ye-Wi-Fi 7 kukunyusa izinga lokuhamba kwenethiwekhi ye-WLAN ukuya kwi-30Gbps kunye nokubonelela ngeziqinisekiso zokufikelela kwi-latency ephantsi.Ukuze ufezekise le njongo, yonke iprotocol yenze utshintsho oluhambelanayo kwi-PHY layer kunye ne-MAC layer.Xa kuthelekiswa neprotocol ye-Wi-Fi 6, olona tshintsho luphambili lobugcisa oluziswe yiWi-Fi 7 protocol lulandelayo:
Inkxaso Ubuninzi 320MHz Bandwidth
I-spectrum yasimahla yelayisensi kwi-2.4GHz kunye ne-5GHz iibhendi zamaza zilinganiselwe kwaye zixinene.Xa i-Wi-Fi ekhoyo iqhuba izicelo ezivelayo ezifana ne-VR / AR, ngokuqinisekileyo iya kuhlangabezana nengxaki ye-QoS ephantsi.Ukuze kuphunyezwe usukelo lokuhamba okuphezulu okungekho ngaphantsi kwe-30Gbps, i-Wi-Fi 7 iya kuqhubeka nokwazisa i-frequency band ye-6GHz kwaye yongeze iindlela ezintsha ze-bandwidth, kubandakanywa i-240MHz eqhubekayo, i-160 + 80MHz engaqhubekiyo, i-320 MHz eqhubekayo kunye ne-non-frequency. -eqhubekayo 160 + 160MHz.(Wamkelekile ukuba ubeke ingqalelo kwiakhawunti esemthethweni: injineli yenethiwekhi uAron)
Inkxaso ye-Multi-RU Mechanism
Kwi-Wi-Fi 6, umsebenzisi ngamnye unokuthumela kuphela okanye afumane izakhelo kwi-RU ethile eyabelweyo, enciphisa kakhulu ukuguquguquka kokucwangciswa kwemithombo ye-spectrum.Ukusombulula le ngxaki kunye nokuphucula ngakumbi ukusebenza kakuhle kwe-spectrum, i-Wi-Fi 7 ichaza indlela evumela ukuba ii-RU ezininzi zinikezelwe kumsebenzisi omnye.Ngokuqinisekileyo, ukwenzela ukulinganisa ubunzima bokuphunyezwa kunye nokusetyenziswa kwe-spectrum, i-protocol yenze izithintelo ezithile ekudibaneni kwe-RUs, oko kukuthi: i-RUs encinci (i-RUs encinci kune-242-Tone) inokudibaniswa kuphela. kunye ne-RUs encinci, kunye ne-RUs enkulu (i-RUs enkulu okanye ilingana ne-242-Tone) inokudibaniswa kuphela kunye ne-RUs enkulu, kunye ne-RUs encinci kunye ne-RUs enkulu ayivumelekanga ukuba ixutywe.
Yazisa itekhnoloji yokumodareyitha ye-4096-QAM ephezulu
Eyona ndlela iphezulu yokumodareyitha yeI-Wi-Fi 6yi 1024-QAM, apho iisimboli zokumodareyitha zithwala amasuntswana ali-10.Ukuze uqhubele phambili ukunyusa izinga, i-Wi-Fi 7 iya kuzisa i-4096-QAM, ukwenzela ukuba iimpawu zokumodareyitha zithwale iibhithi ezili-12.Ngaphantsi kwe-encoding efanayo, i-Wi-Fi 7's 4096-QAM inokufikelela kwi-20% yokunyuka kwezinga xa kuthelekiswa ne-Wi-Fi 6's 1024-QAM.(Wamkelekile ukuba ubeke ingqalelo kwiakhawunti esemthethweni: injineli yenethiwekhi uAron)
Yazisa iMulti-Link yonxibelelwano oluninzi
Ukuze kuphunyezwe ukusetyenziswa ngokufanelekileyo kwazo zonke izibonelelo ze-spectrum ezikhoyo, kukho imfuneko engxamisekileyo yokuseka ulawulo olutsha lwe-spectrum, ulungelelwaniso kunye neendlela zokuhambisa kwi-2.4 GHz, 5 GHz kunye ne-6 GHz.Iqela elisebenzayo lichaze iitekhnoloji ezihambelana nokudityaniswa kwamakhonkco amaninzi, ngakumbi kubandakanywa ulwakhiwo lwe-MAC lwe-aggregation ephuculweyo ye-multi-link, ukufikelela kwi-multi-link channel, ukuhanjiswa kwe-multi-link kunye nezinye iteknoloji ezinxulumene nazo.
Xhasa imijelo yedatha engaphezulu, ukuphuculwa komsebenzi we-MIMO
Kwi-Wi-Fi yesi-7, inani lemijelo yendawo linyukile ukusuka kwi-8 ukuya kwi-16 kwi-Wi-Fi 6, ethi ithiyori inokuphinda iphindwe kabini izinga losulelo lomzimba.Ukuxhasa imijelo yedatha eyongezelelweyo kuya kuzisa iimpawu ezinamandla ngakumbi-i-MIMO esasazwayo, oku kuthetha ukuba imilambo yedatha ye-16 inokubonelelwa kungeyiyo enye indawo yokufikelela, kodwa ngamanqaku okufikelela amaninzi ngexesha elinye, oku kuthetha ukuba ii-AP ezininzi kufuneka zisebenzisane. umsebenzi.
Ukuxhasa ukucwangciswa kwentsebenziswano phakathi kwee-AP ezininzi
Okwangoku, ngaphakathi kwesakhelo se-802.11 protocol, ngokwenene akukho ntsebenziswano ingako phakathi kwee-APs.Imisebenzi ye-WLAN eqhelekileyo efana nokulungisa okuzenzekelayo kunye nokuzulazula ngobuchule ziimpawu ezichazwe ngumthengisi.Injongo yentsebenziswano phakathi kwe-AP kukwandisa kuphela ukhetho lwetshaneli, ukulungelelanisa umthwalo phakathi kwee-APs, njl. njl., ukuze kuphunyezwe injongo yokusetyenziswa ngokufanelekileyo kunye nolwabiwo olulungeleleneyo lwezixhobo zamaza kanomathotholo.Ukucwangciswa okucwangcisiweyo phakathi kwee-AP ezininzi kwi-Wi-Fi 7, kubandakanywa ukucwangciswa kokulungelelaniswa phakathi kweeseli kwi-domain yexesha kunye ne-frequency domain, ukulungelelaniswa kokuphazamiseka phakathi kweeseli, kunye nokusabalalisa i-MIMO, kunokunciphisa ngokufanelekileyo ukuphazamiseka phakathi kwe-APs, kakhulu Ukuphucula ukusetyenziswa kwemithombo yojongano lomoya.
Kukho iindlela ezininzi zokulungelelanisa ukucwangcisa phakathi kwee-APs ezininzi, kubandakanywa i-C-OFDMA (i-Coordinated Orthogonal Frequency-Division Multiple Access), i-CSR (Ukusetyenziswa kwakhona kweNdawo eLungeleleyo), i-CBF (i-Coordinated Beamforming), kunye ne-JXT (i-Joint Transmission).
5. Iimeko zosetyenziso lwe-Wi-Fi 7
Iimpawu ezitsha eziveliswe yi-Wi-Fi 7 ziya kwandisa kakhulu izinga lokudluliselwa kwedatha kwaye zibonelele nge-latency ephantsi, kwaye ezi zibonelelo ziya kuba luncedo ngakumbi kwizicelo ezivelayo, ngolu hlobo lulandelayo:
- Umsinga wevidiyo
- Ividiyo/iNkomfa yelizwi
- Ukudlala okungenazingcingo
- Intsebenziswano yexesha langempela
- Cloud/Edge Computing
- I-Intanethi ye-Intanethi yeZinto
- I-AR/VR entywilayo
- i-telemedicine esebenzayo
Ixesha lokuposa: Feb-20-2023