WiFi 7 (Wi-Fi 7) ndi muyezo wa Wi-Fi wa m'badwo watsopano. Mogwirizana ndi IEEE 802.11, muyezo watsopano wosinthidwa wa IEEE 802.11be - Extremely High Throughput (EHT) udzatulutsidwa
Wi-Fi 7 imayambitsa ukadaulo monga bandwidth ya 320MHz, 4096-QAM, Multi-RU, ntchito ya multi-link, MU-MIMO yowonjezera, ndi mgwirizano wa multi-AP pogwiritsa ntchito Wi-Fi 6, zomwe zimapangitsa Wi-Fi 7 kukhala yamphamvu kwambiri kuposa Wi-Fi 7. Chifukwa Wi-Fi 6 ipereka kuchuluka kwa data komanso kuchedwa kochepa. Wi-Fi 7 ikuyembekezeka kuthandizira kufalikira kwa 30Gbps, pafupifupi katatu kuposa Wi-Fi 6.
Zinthu Zatsopano Zothandizidwa ndi Wi-Fi 7
- Thandizani bandwidth yayikulu ya 320MHz
- Thandizani njira ya Multi-RU
- Yambitsani ukadaulo wapamwamba kwambiri wa 4096-QAM modulation
- Yambitsani njira yolumikizirana yambirimbiri
- Thandizani mitsinje yambiri ya data, kukulitsa ntchito za MIMO
- Thandizani kukonza nthawi yogwirira ntchito limodzi pakati pa ma AP angapo
- Zochitika Zogwiritsira Ntchito Wi-Fi 7
1. N’chifukwa chiyani Wi-Fi 7 imagwira ntchito?
Ndi chitukuko cha ukadaulo wa WLAN, mabanja ndi mabizinesi amadalira kwambiri Wi-Fi ngati njira yayikulu yolumikizira netiweki. M'zaka zaposachedwa, mapulogalamu atsopano ali ndi zofunikira zambiri pakutha kwa intaneti ndi kuchedwa, monga makanema a 4K ndi 8K (chiwerengero cha kutumiza mauthenga chingafike pa 20Gbps), VR/AR, masewera (chofunikira pakutha kwa intaneti ndi chochepera 5ms), ofesi yakutali, ndi misonkhano yamavidiyo pa intaneti ndi cloud computing, ndi zina zotero. Ngakhale kutulutsidwa kwaposachedwa kwa Wi-Fi 6 kwayang'ana kwambiri pa zomwe ogwiritsa ntchito akumana nazo pazochitika za anthu ambiri, sikungathe kukwaniritsa mokwanira zofunikira zapamwamba zomwe zatchulidwa pamwambapa pakutha kwa intaneti ndi kuchedwa. (Takulandirani kuti mumvere akaunti yovomerezeka: mainjiniya wa netiweki Aaron)
Pachifukwa ichi, bungwe la IEEE 802.11 standard likukonzekera kutulutsa IEEE 802.11be EHT yatsopano yosinthidwa, yomwe ndi Wi-Fi 7.
2. Nthawi yotulutsa Wi-Fi 7
Gulu logwira ntchito la IEEE 802.11be EHT linakhazikitsidwa mu Meyi 2019, ndipo kupanga 802.11be (Wi-Fi 7) kukupitirirabe. Muyezo wonse wa protocol udzatulutsidwa m'ma Releases awiri, ndipo Release1 ikuyembekezeka kutulutsa mtundu woyamba mu 2021 Draft Draft1.0 ikuyembekezeka kutulutsa muyezo pofika kumapeto kwa 2022; Release2 ikuyembekezeka kuyamba kumayambiriro kwa 2022 ndikumaliza kutulutsidwa kwa muyezo pofika kumapeto kwa 2024.
3. Wi-Fi 7 poyerekeza ndi Wi-Fi 6
Kutengera muyezo wa Wi-Fi 6, Wi-Fi 7 imabweretsa ukadaulo watsopano, womwe umawonetsedwa makamaka mu:
4. Zinthu Zatsopano Zothandizidwa ndi Wi-Fi 7
Cholinga cha protocol ya Wi-Fi 7 ndikuwonjezera kuchuluka kwa ma throughput a netiweki ya WLAN kufika pa 30Gbps ndikupereka chitsimikizo cha low-latency access. Pofuna kukwaniritsa cholinga ichi, protocol yonse yasintha mofanana mu PHY layer ndi MAC layer. Poyerekeza ndi protocol ya Wi-Fi 6, kusintha kwakukulu kwaukadaulo komwe kumabwera chifukwa cha protocol ya Wi-Fi 7 ndi motere:
Thandizani Ma Bandwidth Okwanira 320MHz
Ma frequency band a 2.4GHz ndi 5GHz opanda layisensi ndi ochepa komanso odzaza. Pamene Wi-Fi yomwe ilipo ikugwiritsa ntchito mapulogalamu atsopano monga VR/AR, mosakayikira idzakumana ndi vuto la QoS yotsika. Pofuna kukwaniritsa cholinga cha bandwidth yayikulu yosachepera 30Gbps, Wi-Fi 7 ipitiliza kuyambitsa bandwidth band ya 6GHz ndikuwonjezera njira zatsopano za bandwidth, kuphatikiza 240MHz yopitilira, 160+80MHz yopitilira, 320 MHz yopitilira komanso 160+160MHz yopitilira. (Takulandirani kuti mumvere akaunti yovomerezeka: mainjiniya wa netiweki Aaron)
Thandizani Njira Yogwiritsira Ntchito Multi-RU
Mu Wi-Fi 6, wogwiritsa ntchito aliyense amangotumiza kapena kulandira mafelemu pa RU yomwe wapatsidwa, zomwe zimachepetsa kwambiri kusinthasintha kwa nthawi yokonzekera zinthu za spectrum. Pofuna kuthetsa vutoli ndikupititsa patsogolo magwiridwe antchito a spectrum, Wi-Fi 7 imafotokoza njira yomwe imalola ma RU angapo kugawidwa kwa wogwiritsa ntchito m'modzi. Zachidziwikire, kuti pakhale kusinthasintha kwa kuyika ndi kugwiritsa ntchito ma spectrum, protocol yapanga zoletsa zina pakuphatikiza ma RU, zomwe ndi: ma RU ang'onoang'ono (ma RU ang'onoang'ono kuposa 242-Tone) amatha kuphatikizidwa ndi ma RU ang'onoang'ono, ndipo ma RU akuluakulu (ma RU akulu kuposa kapena ofanana ndi 242-Tone) amatha kuphatikizidwa ndi ma RU akuluakulu, ndipo ma RU ang'onoang'ono ndi ma RU akuluakulu saloledwa kusakanikirana.
Yambitsani ukadaulo wapamwamba kwambiri wa 4096-QAM modulation
Njira yapamwamba kwambiri yosinthiraWi-Fi 6ndi 1024-QAM, momwe zizindikiro za modulation zimanyamula ma bits 10. Pofuna kuonjezera liwiro, Wi-Fi 7 idzayambitsa 4096-QAM, kotero kuti zizindikiro za modulation zimanyamula ma bits 12. Pogwiritsa ntchito encoding yomweyi, Wi-Fi 7's 4096-QAM ikhoza kukweza liwiro ndi 20% poyerekeza ndi Wi-Fi 6's 1024-QAM. (Takulandirani kuti mumvetsere akaunti yovomerezeka: mainjiniya wa netiweki Aaron)
Yambitsani njira yolumikizirana yambirimbiri
Kuti tigwiritse ntchito bwino zinthu zonse zomwe zilipo, pakufunika kukhazikitsa njira zatsopano zoyendetsera ma spectrum, kulumikizana, ndi kutumiza ma 2.4 GHz, 5 GHz ndi 6 GHz. Gulu logwira ntchito lidafotokoza ukadaulo wokhudzana ndi kuphatikiza ma multi-link, makamaka kuphatikiza kapangidwe ka MAC ka kukulitsa ma multi-link aggregation, mwayi wopeza ma multi-link channel, kufalitsa ma multi-link ndi ukadaulo wina wofanana nawo.
Thandizani mitsinje yambiri ya data, kukulitsa ntchito za MIMO
Mu Wi-Fi 7, chiwerengero cha mitsinje ya malo chawonjezeka kuchoka pa 8 kufika pa 16 mu Wi-Fi 6, zomwe mwachiphunzitso zimatha kuwirikiza kawiri kuchuluka kwa kufalikira kwa deta. Kuthandizira mitsinje yambiri ya deta kudzabweretsanso MIMO yamphamvu kwambiri, zomwe zikutanthauza kuti mitsinje 16 ya deta ikhoza kuperekedwa osati ndi malo amodzi olowera, koma ndi malo angapo olowera nthawi imodzi, zomwe zikutanthauza kuti ma AP angapo ayenera kugwirira ntchito limodzi kuti agwire ntchito.
Thandizani kukonza nthawi yogwirira ntchito limodzi pakati pa ma AP angapo
Pakadali pano, mkati mwa dongosolo la 802.11, palibe mgwirizano wambiri pakati pa ma AP. Ntchito zodziwika bwino za WLAN monga kukonza zokha ndi kuyendayenda mwanzeru ndi zinthu zomwe zimaperekedwa ndi ogulitsa. Cholinga cha mgwirizano wapakati pa ma AP ndikungokonza kusankha njira, kusintha katundu pakati pa ma AP, ndi zina zotero, kuti tikwaniritse cholinga chogwiritsa ntchito bwino komanso kugawa bwino zida zama radio frequency. Kukonza nthawi pakati pa ma AP angapo mu Wi-Fi 7, kuphatikiza kukonzekera kogwirizana pakati pa maselo mu nthawi ndi frequency domain, kulumikizana kosokoneza pakati pa maselo, ndi MIMO yogawidwa, kungathandize kuchepetsa kusokoneza pakati pa ma AP, Kumathandizira kwambiri kugwiritsa ntchito zida zolumikizira mpweya.
Pali njira zambiri zogwirizanitsa nthawi pakati pa ma AP angapo, kuphatikizapo C-OFDMA (Coordinated Orthogonal Frequency-Division Multiple Access), CSR (Coordinated Spatial Reuse), CBF (Coordinated Beamforming), ndi JXT (Joint Transmission).
5. Zochitika Zogwiritsira Ntchito Wi-Fi 7
Zinthu zatsopano zomwe zayambitsidwa ndi Wi-Fi 7 zidzakulitsa kwambiri kuchuluka kwa kutumiza deta ndikupereka kuchedwa kochepa, ndipo zabwino izi zidzakhala zothandiza kwambiri ku mapulogalamu atsopano, motere:
- Kanema wowonera
- Msonkhano wa Makanema/Mawu
- Masewera opanda zingwe
- Mgwirizano weniweni
- Kompyuta ya Mtambo/Mphepete
- Intaneti ya Zinthu Zamakampani
- AR/VR yozama kwambiri
- mankhwala olumikizirana ndi anthu
Nthawi yotumizira: Feb-20-2023