WiFi 7 (Wi-Fi 7) ndiyo Wi-Fi yechizvarwa chinotevera. Inoenderana neIEEE 802.11, IEEE 802.11be itsva yakagadziriswazve - Extremely High Throughput (EHT) ichaburitswa
Wi-Fi 7 inounza matekinoroji akadai se320MHz bandwidth, 4096-QAM, Multi-RU, multi-link operation, MU-MIMO yakawedzerwa, uye multi-AP kushandira pamwe zvichibva paWi-Fi 6, zvichiita kuti Wi-Fi 7 ive nesimba kupfuura Wi-Fi 7. Nekuti Wi-Fi 6 ichapa mwero wepamusoro wekutamisa data uye latency yakaderera. Wi-Fi 7 inotarisirwa kutsigira throughput inosvika 30Gbps, kanenge katatu kupfuura Wi-Fi 6.
Zvinhu Zvitsva Zvinotsigirwa neWi-Fi 7
- Tsigira bandwidth yepamusoro ye320MHz
- Tsigira maitiro eMulti-RU
- Taurira tekinoroji yepamusoro ye4096-QAM modulation
- Suma nzira yekubatanidza maMulti-Link akawanda
- Tsigira mamwe ma data streams, MIMO function enhancement
- Tsigira kuronga kwekushandira pamwe pakati pemaAP akawanda
- Maitiro ekushandisa Wi-Fi 7
1. Sei Wi-Fi 7 ichifanira kushandiswa?
Nekuvandudzwa kwetekinoroji yeWLAN, mhuri nemabhizinesi vari kuramba vachishanda neWi-Fi senzira huru yekuwana network. Mumakore achangopfuura, maapplication matsva ane zvinodiwa zvakanyanya zvekubuditsa nekunonoka, zvakaita se4K ne8K video (huwandu hwekutumirwa kwedata hunogona kusvika 20Gbps), VR/AR, mitambo (zvinodiwa zvekunonoka zviri pasi pe5ms), hofisi iri kure, uye online video conferencing uye cloud computing, nezvimwewo. Kunyangwe kuburitswa kwazvino kweWi-Fi 6 kwakatarisana neruzivo rwemushandisi muzviitiko zvehuwandu hwevanhu, haisati yakwanisa kuzadzisa zvizere zvinodiwa zvataurwa pamusoro apa zvekubuditsa nekunonoka. (Tinokugamuchirai kuti muteerere account yepamutemo: network engineer Aaron)
Nekuda kweizvi, sangano reIEEE 802.11 standard riri kuda kuburitsa standard itsva yakagadziridzwa yeIEEE 802.11be EHT, inonzi Wi-Fi 7.
2. Nguva yekuburitsa Wi-Fi 7
Boka rekushanda reIEEE 802.11be EHT rakavambwa muna Chivabvu 2019, uye kugadzirwa kwe802.11be (Wi-Fi 7) kuchiri kuenderera mberi. Mutemo wese weprotocol uchaburitswa mumaReleases maviri, uye Release1 inotarisirwa kuburitsa vhezheni yekutanga muna 2021. Draft Draft1.0 inotarisirwa kuburitsa standard panosvika kupera kwa2022; Release2 inotarisirwa kutanga kutanga kwa2022 uye kupedzisa standard panosvika kupera kwa2024.
3. Wi-Fi 7 vs Wi-Fi 6
Zvichibva paWi-Fi 6 standard, Wi-Fi 7 inounza matekinoroji matsva akawanda, anonyanya kuratidzwa mu:
4. Zvinhu Zvitsva Zvinotsigirwa neWi-Fi 7
Chinangwa cheprotocol yeWi-Fi 7 ndechekuwedzera mwero wekushandisa kwenetwork yeWLAN kusvika pa30Gbps uye kupa vimbiso yekupinda mu "low-latency". Kuti zvizadzise chinangwa ichi, protocol yese yakaita shanduko dzakakodzera muPHY layer neMAC layer. Zvichienzaniswa neprotocol yeWi-Fi 6, shanduko huru dzehunyanzvi dzakaunzwa neprotocol yeWi-Fi 7 ndeidzi:
Tsigira Maximum 320MHz Bandwidth
Ma frequency band e 2.4GHz ne 5GHz haana rezinesi uye akawandisa. Kana Wi-Fi iripo ichishandisa maapplication matsva akadai se VR/AR, ichasangana nedambudziko re QoS shoma. Kuti ibudirire pachinangwa che bandwidth yepamusoro isingasviki 30Gbps, Wi-Fi 7 icharamba ichiunza 6GHz frequency band uye ichiwedzera nzira itsva dzebandwidth, dzinosanganisira continuous 240MHz, non-continuous 160+80MHz, continuous 320 MHz uye non-continuous 160+160MHz. (Tinokugamuchirai kuti muteerere account yepamutemo: network engineer Aaron)
Tsigira Multi-RU Mechanism
MuWi-Fi 6, mushandisi wega wega anogona kutumira kana kugamuchira maframe paRU yakatarwa, izvo zvinoderedza zvikuru kuchinjika kwekurongwa kwezviwanikwa zvespectrum. Kuti dambudziko iri rigadziriswe uye kuwedzera kuvandudza mashandiro espectrum, Wi-Fi 7 inotsanangura nzira inobvumira maRU akawanda kugoverwa kumushandisi mumwe chete. Ehe, kuitira kuti kuenzana kwekushandiswa uye kushandiswa kwespectrum kuenzane, protocol iyi yakaita zvirambidzo pakubatanidzwa kweRU, kureva kuti: maRU madiki (maRU madiki pane 242-Tone) anogona kusanganiswa chete neRU diki, uye maRU makuru (maRU makuru kupfuura kana akaenzana ne242-Tone) anogona kusanganiswa chete neRU hombe, uye maRU madiki neRU hombe haatenderwi kusanganiswa.
Taurira tekinoroji yepamusoro ye4096-QAM modulation
Nzira yepamusoro yekushandura modulationWi-Fi 6i1024-QAM, umo zviratidzo zvemodulation zvine mabhiti gumi. Kuti iwedzere kuwedzera mwero, Wi-Fi 7 ichaunza 4096-QAM, kuitira kuti zviratidzo zvemodulation zviite mabhiti gumi nemaviri. Pasi pe encoding imwechete, Wi-Fi 7's 4096-QAM inogona kuwana kuwedzera kwe20% mwero zvichienzaniswa neWi-Fi 6's 1024-QAM. (Tinokugamuchirai kuti muteerere account yepamutemo: network engineer Aaron)
Suma nzira yekubatanidza maMulti-Link akawanda
Kuti zvikwanisike kushandisa zvese zvinowanikwa mu spectrum, pane chikonzero chikuru chekugadzira nzira itsva dzekutarisira, kubatanidza uye kutumira ma spectrum pa 2.4 GHz, 5 GHz uye 6 GHz. Boka rekushanda rakatsanangura matekinoroji ane chekuita ne multi-link aggregation, kunyanya kusanganisira MAC architecture ye multi-link aggregation yakawedzerwa, multi-link channel access, multi-link transmission nedzimwe tekinoroji dzakabatana.
Tsigira mamwe ma data streams, MIMO function enhancement
MuWi-Fi 7, huwandu hwenzizi dzenzvimbo hwakawedzera kubva pa8 kusvika pa16 muWi-Fi 6, izvo zvinogona kuwedzera kaviri mwero wekutumira data. Kutsigiranzizidzi ...tsidzidzidzidzidzidzidzidzidzidzidzidzidzidzidzidzidzidzidzidzidzidzitsidzidzidzidzidzidzidzidzidzidzidzidzidzidzitsidzidzidzidzidzidzidzidzidzidzidzidzidzidzidzitsidzidzidzidzidzidzidzidzidzidzidzidzidzitsidzidzidzitsidzidzidzidzidzidzidzidzidzidzidzidzidzidzitsidzidzidzitsidzidzidzidzidzidzidzidzidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzidzidzidzidzidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzidzitsidzidzitsidzidzitsidzidzitsidzidzitsidzidzitsidzidzitsidzidzitsidzi
Tsigira kuronga kwekushandira pamwe pakati pemaAP akawanda
Parizvino, mukati mehurongwa hwe802.11 protocol, hapana kushandira pamwe kwakawanda pakati pemaAP. Mabasa akajairika eWLAN akadai se automatic tuning uye smart roaming zvinhu zvinotsanangurwa nevatengesi. Chinangwa chekubatana pakati peAP ndechekungogadzirisa sarudzo yechiteshi, kugadzirisa mutoro pakati pemaAP, nezvimwewo, kuitira kuti chinangwa chekushandiswa zvakanaka uye kugoverwa kwakaringana kwezviwanikwa zveredhiyo. Kurongeka kwakarongeka pakati pemaAP akawanda muWi-Fi 7, kusanganisira kuronga kwakarongeka pakati pemasero ari munzvimbo yenguva uye nzvimbo yefrequency, kurongeka kwekuvhiringidza pakati pemasero, uye MIMO yakagoverwa, inogona kuderedza kupindirana pakati pemaAP zvinobudirira, Kuvandudza zvikuru kushandiswa kwezviwanikwa zvemhepo.
Kune 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 Wi-Fi 7
Zvinhu zvitsva zvakaunzwa neWi-Fi 7 zvichawedzera zvakanyanya mwero wekutumira data uye zvichapa kunonoka kwakaderera, uye mabhenefiti aya achabatsira zvakanyanya kune maapplication ari kubuda, seizvi:
- Kuratidzwa kwevhidhiyo
- Musangano weVhidhiyo/Inzwi
- Mitambo isina waya
- Kushandira pamwe panguva chaiyo
- Kombiyuta yeGore/Edge
- Indaneti yezvinhu zvemaindasitiri
- AR/VR inonyudza
- kutaurirana kwefoni
Nguva yekutumira: Kukadzi-20-2023