WiFi 7 (Wi-Fi 7) ndiyo inotevera-chizvarwa Wi-Fi chiyero. Inoenderana neIEEE 802.11, chiyero chitsva chakadzokororwa IEEE 802.11be - Yakanyanya High throughput (EHT) ichaburitswa.
Wi-Fi 7 inosvitsa matekinoroji akadai se320MHz bandwidth, 4096-QAM, Multi-RU, multi-link mashandiro, yakakwidziridzwa MU-MIMO, uye akawanda-AP kubatana pahwaro hweWi-Fi 6, zvichiita kuti Wi-Fi 7 iwedzere simba. kupfuura Wi-Fi 7. Nokuti Wi-Fi 6 ichapa mazinga akakwirira ekufambisa uye kuderedza latency. Wi-Fi 7 inotarisirwa kutsigira kubuda kunosvika 30Gbps, kanokwana katatu iyo yeWi-Fi 6.
Zvitsva Zvitsva Zvinotsigirwa neWi-Fi 7
- Tsigira yakakura 320MHz bandwidth
- Tsigira Multi-RU michina
- Sungisa yakakwira odha 4096-QAM modulation tekinoroji
- Sungisa Multi-Link multi-link maitiro
- Tsigira mamwe data hova, MIMO basa rekusimudzira
- Tsigira kurongeka kwemubatanidzwa pakati peakawanda maAP
- Maitiro ekushandisa eWi-Fi 7
1. Sei Wi-Fi 7?
Nekuvandudzwa kwehunyanzvi hweWLAN, mhuri nemabhizinesi vanovimba zvakanyanya neWi-Fi senzira huru yekuwana network. Mumakore achangopfuura, zvikumbiro zvitsva zvine kukwirira kwepamusoro uye kunonoka zvinodiwa, senge 4K uye 8K vhidhiyo (chiyero chekufambisa chinogona kusvika 20Gbps), VR/AR, mitambo (chinodiwa chekunonoka chiri pasi pe5ms), hofisi iri kure, uye online vhidhiyo musangano. uye cloud computing, etc. Kunyange zvazvo kusunungurwa kweWi-Fi 6 kuchangoburwa kwakanangana neruzivo rwemushandisi mumamiriro epamusoro-density, haisati ichikwanisa kuzadzisa zvizere zvakataurwa pamusoro apa zvinodiwa zvekufambisa uye latency. (Tinogamuchirwa kuterera kune yepamutemo account: network mainjiniya Aaron)
Kuti izvi zviitike, iyo IEEE 802.11 yakajairika sangano yave kuda kuburitsa yakadzokororwa chiyero IEEE 802.11be EHT, inova Wi-Fi 7.
2. Nguva yekuburitswa yeWi-Fi 7
IEEE 802.11be EHT boka rinoshanda rakavambwa muna Chivabvu 2019, uye kuvandudzwa kwe802.11be (Wi-Fi 7) kuchiri kuenderera mberi. Iyo yese protocol standard ichaburitswa muZvinyorwa zviviri, uye Release1 inotarisirwa kuburitsa vhezheni yekutanga muna 2021 Draft Draft1.0 inotarisirwa kuburitsa mwero pakupera kwa2022; Release2 inotarisirwa kutanga kutanga kwa2022 uye kupedzisa kuburitswa kwakajairwa mukupera kwa2024.
3. Wi-Fi 7 vs Wi-Fi 6
Zvichienderana neiyo Wi-Fi 6 chiyero, Wi-Fi 7 inoburitsa akawanda matekinoroji, anonyanya kuratidzwa mu:
4. Zvitsva Zvitsva Zvinotsigirwa neWi-Fi 7
Chinangwa cheWi-Fi 7 protocol ndechekuwedzera chiyero chekupfuura cheWLAN network kusvika ku30Gbps uye kupa vimbiso yepasi-latency yekuwana. Kuti zvizadzise chinangwa ichi, protocol yese yakaita shanduko dzinoenderana muPHY layer uye MAC layer. Kuenzaniswa neWi-Fi 6 protocol, shanduko huru dzehunyanzvi dzakaunzwa neWi-Fi 7 protocol ndedzinotevera:
Tsigira Maximum 320MHz Bandwidth
Iyo rezinesi-yemahara spectrum mu2.4GHz uye 5GHz frequency mabhendi ishoma uye yakazara. Kana iripo Wi-Fi inomhanyisa maapplication ari kubuda akadai seVR/AR, inosangana nedambudziko reiyo QoS yakaderera. Kuti uzadzise chinangwa chepamusoro-soro yekupfuura isingasviki 30Gbps, Wi-Fi 7 icharamba ichiunza 6GHz frequency bhendi uye kuwedzera mitsva bandwidth modes, kusanganisira inoenderera 240MHz, isingaenderere mberi 160+80MHz, inoenderera 320 MHz uye isiri. -inoenderera 160 + 160MHz. (Tinogamuchirwa kuterera kune yepamutemo account: network mainjiniya Aaron)
Tsigira Multi-RU Mechanism
MuWi-Fi 6, mushandisi wega wega anogona kutumira kana kugashira mafuremu pane yakapihwa chaiyo RU, iyo inodzikamisa zvakanyanya kuchinjika kweiyo spectrum zviwanikwa kuronga. Kugadzirisa dambudziko iri uye nekuwedzera kuvandudza spectrum kunyatsoshanda, Wi-Fi 7 inotsanangura nzira inobvumira akawanda maRU kuti apiwe kune mumwe mushandisi. Ehezve, kuitira kuenzanisa kuomarara kwekuita uye kushandiswa kweiyo spectrum, iyo protocol yakaita zvimwe zvirambidzo pakusanganiswa kweRU, ndiko kuti: madiki-sized RUs (RUs madiki pane 242-Tone) anogona chete kubatanidzwa. ine maRU maduku, uye maRUs makuru (RUs makuru kupfuura kana akaenzana ne242-Tone) inogona kusanganiswa chete nehukuru hukuru hweRU, uye hukuru hukuru hweRU uye hukuru hukuru husingabvumirwi kusanganiswa.
Sungisa yakakwira odha 4096-QAM modulation tekinoroji
Iyo yepamusoro modulation nzira yeWi-Fi 6iri 1024-QAM, umo modulation zviratidzo zvinotakura gumi mabhiti. Kuti uwedzere kuwedzera chiyero, Wi-Fi 7 ichaunza 4096-QAM, kuitira kuti modulation zviratidzo zvinotakura 12 bits. Pasi peiyo encoding yakafanana, Wi-Fi 7's 4096-QAM inogona kuwana 20% chiyero chekuwedzera kana ichienzaniswa neWi-Fi 6's 1024-QAM. (Tinogamuchirwa kuterera kune yepamutemo account: network mainjiniya Aaron)
Sungisa Multi-Link multi-link maitiro
Kuti tiwane mashandisirwo akanaka ezvese zviripo spectrum zviwanikwa, pane kudiwa kwekukurumidzira kumisikidzwa kutsva kwe spectrum management, coordination and transmission systems pa2.4 GHz, 5 GHz uye 6 GHz. Boka rinoshanda rakatsanangura matekinoroji ane hukama neakawanda-link aggregation, kunyanya kusanganisira MAC dhizaini yekunatsiridza akawanda-link aggregation, akawanda-link chiteshi kuwana, akawanda-link kutapurirana uye humwe hunyanzvi hunyanzvi.
Tsigira mamwe data hova, MIMO basa rekusimudzira
MuWi-Fi 7, huwandu hwehova dzepamhepo hwawedzera kubva pa8 kusvika pa16 muWi-Fi 6, iyo nedzidziso inogona kudarika kaviri chiyero chekutapurirana kwemuviri. Kutsigira mamwe madhairekisheni edata kuchaunzawo mamwe ane simba maficha-akagoverwa MIMO, zvinoreva kuti gumi nematanhatu data nzizi dzinogona kupihwa kwete nenzvimbo imwe chete yekuwana, asi nenzvimbo dzakawanda dzekuwana panguva imwe chete, zvinoreva kuti maAP akawanda anofanirwa kushanda pamwe chete shanda.
Tsigira kurongeka kwemubatanidzwa pakati peakawanda maAP
Parizvino, mukati meiyo 802.11 protocol, pane chaizvo hapana kubatana kwakawanda pakati peAPs. Zvakajairwa WLAN mabasa akadai otomatiki tuning uye smart kutenderera zvinhu zvinotsanangurwa nemutengesi. Chinangwa chekubatana kwe-AP ndechekugadzirisa kusarudzwa kwechiteshi, kugadzirisa mutoro pakati peAPs, nezvimwewo, kuitira kuti uwane chinangwa chekushandiswa nemazvo uye kugovewa kwakaringana kweredhiyo frequency zviwanikwa. Kurongeka kwakarongeka pakati peakawanda maAPs muWi-Fi 7, kusanganisira kuronga kwakarongeka pakati pemasero ari mudura renguva uye frequency domain, kupindirana kurongeka pakati pemasero, uye kugoverwa MIMO, kunogona kunyatso kudzikisa kupindirana pakati peAPs, Kuvandudza zvakanyanya mashandisirwo emhepo interface zviwanikwa.
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Pane nzira dzakawanda dzekubatanidza kuronga pakati pemaAP akawanda, kusanganisira C-OFDMA (Coordinated Orthogonal Frequency-Division Multiple Access), CSR (Coordinated Spatial Reuse), CBF (Coordinated Beamforming), uye JXT (Joint Transmission).
5. Maitiro ekushandisa eWi-Fi 7
Iwo maficha matsva akaunzwa neWi-Fi 7 achawedzera zvakanyanya chiyero chekufambisa data uye kupa yakaderera latency, uye izvi zvakanakira zvichanyanya kubatsira kune ari kubuda maapplication, sezvinotevera:
- Video stream
- Vhidhiyo/Inzwi Conferencing
- Wireless mitambo
- Kubatana kwechokwadi-nguva
- Cloud/Edge Computing
- Industrial Internet yezvinhu
- Inonyudza AR/VR
- interactive telemedicine
Nguva yekutumira: Feb-20-2023