WiFi 7 (Wi-Fi 7) bụ ọkọlọtọ Wi-Fi nke ọgbọ na-abịa. Dịka IEEE 802.11 si dị, a ga-ewepụta ọkọlọtọ IEEE 802.11be ọhụrụ - Extreme High Throughput (EHT) nke emezigharịrị.
Wi-Fi 7 na-ewebata teknụzụ dịka bandwidth 320MHz, 4096-QAM, Multi-RU, ọrụ njikọ ọtụtụ, MU-MIMO emelitere, na mmekorita ọtụtụ AP dabere na Wi-Fi 6, na-eme ka Wi-Fi 7 dị ike karịa Wi-Fi 7. N'ihi na Wi-Fi 6 ga-enye ọnụego mbufe data dị elu yana obere oge. A na-atụ anya na Wi-Fi 7 ga-akwado mmepụta ruo 30Gbps, ihe dị ka okpukpu atọ nke Wi-Fi 6.
Atụmatụ Ọhụrụ nke Wi-Fi 7 Na-akwado
- Kwado bandwit kachasị elu nke 320MHz
- Kwado usoro Multi-RU
- Webata teknụzụ modulation 4096-QAM dị elu
- Webata usoro njikọ ọtụtụ njikọ Multi-Link
- Kwado iyi data ndị ọzọ, mmelite ọrụ MIMO
- Kwado nhazi oge mmekorita n'etiti ọtụtụ AP
- Usoro Ngwa nke Wi-Fi 7
1. Gịnị kpatara Wi-Fi 7?
Site na mmepe nke teknụzụ WLAN, ezinụlọ na ụlọ ọrụ na-adabere na Wi-Fi dị ka ụzọ isi nweta netwọk ahụ. N'afọ ndị na-adịbeghị anya, ngwa ọhụrụ nwere ihe achọrọ maka mmepụta na igbu oge dị elu, dị ka vidiyo 4K na 8K (ọnụego nnyefe nwere ike iru 20Gbps), VR/AR, egwuregwu (ihe achọrọ maka igbu oge erughị 5ms), ụlọ ọrụ dịpụrụ adịpụ, na nzukọ vidiyo n'ịntanetị na kọmputa igwe ojii, wdg. Ọ bụ ezie na mwepụta kachasị ọhụrụ nke Wi-Fi 6 elekwasịla anya na ahụmịhe onye ọrụ na ọnọdụ dị elu, ọ ka enweghị ike iru ihe achọrọ dị elu nke a kpọtụrụ aha n'elu maka mmepụta na igbu oge. (Nnọọ ka ị lebara anya na akaụntụ gọọmentị: injinia netwọk Aaron)
Maka nke a, ụlọ ọrụ ọkọlọtọ IEEE 802.11 na-achọ iwepụta ọkọlọtọ IEEE 802.11be EHT ọhụrụ emezigharịrị, ya bụ Wi-Fi 7.
2. Oge mwepụta nke Wi-Fi 7
E hiwere otu ọrụ IEEE 802.11be EHT na Mee 2019, mmepe nke 802.11be (Wi-Fi 7) ka na-aga n'ihu. A ga-ewepụta ọkọlọtọ protocol dum na Mwepụta abụọ, a na-atụkwa anya na Release1 ga-ewepụta ụdị nke mbụ na 2021 a na-atụ anya na Draft Draft1.0 ga-ewepụta ọkọlọtọ ahụ na njedebe nke 2022; a na-atụ anya na Release2 ga-amalite na mbido 2022 ma mezue mwepụta ọkọlọtọ ahụ na njedebe nke 2024.
3. Wi-Fi 7 vs Wi-Fi 6
Dabere na ọkọlọtọ Wi-Fi 6, Wi-Fi 7 na-ewebata ọtụtụ teknụzụ ọhụrụ, nke a na-egosipụtakarị na:
4. Atụmatụ ọhụrụ nke Wi-Fi 7 kwadoro
Ebumnuche nke usoro Wi-Fi 7 bụ ịbawanye ọsọ ọsọ nke netwọk WLAN ruo 30Gbps ma nye nkwa ịnweta obere oge. Iji mezuo ebumnuche a, usoro dum emeela mgbanwe ndị kwekọrọ na oyi akwa PHY na oyi akwa MAC. Ma e jiri ya tụnyere usoro Wi-Fi 6, mgbanwe teknụzụ bụ isi nke usoro Wi-Fi 7 wetara bụ ndị a:
Nkwado Oke Bandwit 320MHz
Ọkwa nke enweghị ikike dị na eriri ugboro ugboro 2.4GHz na 5GHz pere mpe ma jupụta na ya. Mgbe Wi-Fi dị ugbu a na-agba ngwa ndị na-apụta dịka VR/AR, ọ ga-ezute nsogbu nke obere QoS. Iji mezuo ebumnuche nke oke ọsọ kachasị nke na-erughị 30Gbps, Wi-Fi 7 ga-aga n'ihu na-ewebata eriri ugboro ugboro 6GHz ma tinye ụdị bandwidth ọhụrụ, gụnyere 240MHz na-aga n'ihu, 160+80MHz na-aga n'ihu, 320 MHz na-aga n'ihu na 160+160MHz na-aga n'ihu. (Nnọọ ka ị lebara anya na akaụntụ gọọmentị: onye injinia netwọk Aaron)
Kwado Usoro Multi-RU
Na Wi-Fi 6, onye ọrụ ọ bụla nwere ike izipu ma ọ bụ nata naanị fremu na RU akọwapụtara nke e kenyere, nke na-egbochi mgbanwe nke nhazi akụrụngwa spectrum nke ukwuu. Iji dozie nsogbu a ma melite arụmọrụ spectrum, Wi-Fi 7 na-akọwa usoro nke na-enye ohere ka ekenye ọtụtụ RU nye otu onye ọrụ. N'ezie, iji hazie mgbagwoju anya nke mmejuputa na ojiji nke spectrum, usoro ahụ emeela ụfọdụ mmachi na njikọta nke RU, nke bụ: enwere ike ijikọ obere RU (RU pere mpe karịa 242-Tone) na obere RU, enwere ike ijikọ nnukwu RU (RU karịrị ma ọ bụ hà nhata 242-Tone) naanị na nnukwu RU, a naghị ekwe ka RU obere na nnukwu RU gwakọta.
Webata teknụzụ modulation 4096-QAM dị elu
Usoro mgbanwe kachasị eluWi-Fi 6bụ 1024-QAM, ebe akara ngosi mgbanwe nwere bits iri. Iji mee ka ọnụego dịkwuo elu, Wi-Fi 7 ga-ewebata 4096-QAM, ka akara ngosi mgbanwe wee nwee bits iri na abụọ. N'okpuru otu koodu ahụ, Wi-Fi 7's 4096-QAM nwere ike nweta mmụba ọnụego 20% ma e jiri ya tụnyere Wi-Fi 6's 1024-QAM. (Nnọọ ka ị lebara anya na akaụntụ gọọmentị: injinia netwọk Aaron)
Webata usoro njikọ ọtụtụ njikọ Multi-Link
Iji nweta ojiji dị mma nke akụrụngwa spectrum niile dị, ọ dị mkpa ngwa ngwa ịmepụta njikwa spectrum ọhụrụ, nhazi na usoro nnyefe na 2.4 GHz, 5 GHz na 6 GHz. Ndị otu ọrụ ahụ kọwara teknụzụ metụtara nchịkọta ọtụtụ njikọ, ọkachasị gụnyere usoro MAC nke njikọta ọtụtụ njikọ emelitere, ohere ọwa njikọ ọtụtụ, nnyefe ọtụtụ njikọ na teknụzụ ndị ọzọ metụtara ya.
Kwado iyi data ndị ọzọ, mmelite ọrụ MIMO
Na Wi-Fi 7, ọnụọgụ mmiri mgbasa ozi amụbaala site na 8 ruo 16 na Wi-Fi 6, nke nwere ike karịa okpukpu abụọ nke ọnụego nnyefe anụ ahụ. Ịkwado mmiri mgbasa ozi data ndị ọzọ ga-ewetakwa MIMO nke atụmatụ ndị dị ike karị, nke pụtara na enwere ike inye mmiri mgbasa ozi data 16 ọ bụghị site na otu ebe nnweta, kama site na ọtụtụ ebe nnweta n'otu oge, nke pụtara na ọtụtụ AP kwesịrị ịrụkọ ọrụ ọnụ iji rụọ ọrụ.
Kwado nhazi oge mmekorita n'etiti ọtụtụ AP
Ugbu a, n'ime usoro nke usoro 802.11, enweghị nnukwu mmekorita n'etiti APs. Ọrụ WLAN ndị a na-ahụkarị dịka nhazi akpaka na smart roaming bụ atụmatụ ndị na-ere ahịa kọwara. Ebumnuche nke mmekorita n'etiti AP bụ naanị ime ka nhọrọ ọwa dịkwuo mma, ịgbanwe ibu dị n'etiti APs, wdg, ka e wee mezuo ebumnuche nke iji ya nke ọma na nkesa ziri ezi nke akụrụngwa redio. Nhazi oge nhazi n'etiti ọtụtụ APs na Wi-Fi 7, gụnyere atụmatụ nhazi n'etiti sel na ngalaba oge na ngalaba ugboro ugboro, nhazi nnyonye anya n'etiti sel, na MIMO kesara, nwere ike ibelata nnyonye anya n'etiti APs nke ọma, melite ojiji nke akụrụngwa interface ikuku nke ukwuu.
;
E nwere ọtụtụ ụzọ isi hazie usoro ihe omume n'etiti ọtụtụ AP, gụnyere C-OFDMA (Coordinated Orthogonal Frequency-Division Multiple Access), CSR (Coordinated Spatial Reuse), CBF (Coordinated Beamforming), na JXT (Joint Transmission).
5. Usoro Ngwa nke Wi-Fi 7
Atụmatụ ọhụrụ nke Wi-Fi 7 webatara ga-eme ka ọsọ nnyefe data dịkwuo elu nke ukwuu ma nye obere oge nkwụsị, uru ndị a ga-abara uru karịa maka ngwa ndị na-apụta, dịka ndị a:
- Ngagharị vidiyo
- Nzukọ Vidiyo/Olu
- Egwuregwu ikuku
- Mmekọrịta oge
- Kọmputa Ígwé ojii/Ọnụego
- Intanetị Ihe nke Ụlọ Ọrụ Mmepụta Ihe
- AR/VR dị omimi
- ọgwụgwọ mmekọrịta
Oge ozi: Feb-20-2023