1. 6 GHz mkulu pafupipafupi zovuta
Zipangizo zamakasitomala zokhala ndi umisiri wolumikizira wamba monga Wi-Fi, Bluetooth, ndi ma cellular zimangogwira ma frequency mpaka 5.9GHz, motero zida ndi zida zomwe zimagwiritsidwa ntchito popanga ndi kupanga zidakonzedwa kale kuti zizikhala pansi pa 6 GHz pakusinthika kwa zida zothandizira mpaka 7.125 GHz imakhudza kwambiri moyo wazinthu zonse kuyambira pakupanga ndi kutsimikizira mpaka kupanga.
2. 1200MHz ultra-wide passband Challenge
Kuthamanga kwafupipafupi kwa 1200MHz kumapereka zovuta pamapangidwe a RF kutsogolo-kumapeto chifukwa kumafunika kupereka magwiridwe antchito mosadukiza ma frequency onse kuchokera pamunsi kwambiri mpaka panjira yapamwamba kwambiri ndipo pamafunika kuchita bwino kwa PA/LNA kuphimba 6 GHz. . mzere. Nthawi zambiri, magwiridwe antchito amayamba kunyonyotsoka pamlingo wapamwamba kwambiri wa bandiyo, ndipo zida zimafunikira kuyesedwa ndikuyesedwa kumayendedwe apamwamba kwambiri kuti zitsimikizire kuti zitha kutulutsa mphamvu zomwe zikuyembekezeka.
3. Zovuta za mapangidwe amitundu iwiri kapena atatu
Zida za Wi-Fi 6E zimagwiritsidwa ntchito kwambiri ngati zida zapawiri (5 GHz + 6 GHz) kapena (2.4 GHz + 5 GHz + 6 GHz) zida. Pakukhalira limodzi kwa mitsinje yamagulu angapo ndi MIMO, izi zimayikanso zofunikira kwambiri pa RF kutsogolo-kumapeto pakuphatikizana, malo, kutulutsa kutentha, komanso kasamalidwe ka mphamvu. Kusefa kumafunika kuonetsetsa kuti bande ikhale yokhayokha kuti isasokonezedwe ndi chipangizocho. Izi zimawonjezera zovuta zamapangidwe ndi kutsimikizira chifukwa kuyezetsa kuphatikizika kochulukira/kukhudzika mtima kumafunika kuchitidwa ndipo ma frequency angapo amafunikira kuyesedwa nthawi imodzi.
4. Vuto lotulutsa malire
Kuonetsetsa kuti pamakhala mtendere ndi ntchito zomwe zilipo kale komanso zokhazikika mu bandi ya 6GHz, zida zogwirira ntchito panja zimayang'aniridwa ndi dongosolo la AFC (Automatic Frequency Coordination).
5. 80MHz ndi 160MHz zovuta zazikulu za bandwidth
Kutalikirana kwamayendedwe kumabweretsa zovuta zamapangidwe chifukwa bandwidth yochulukirapo imatanthauzanso zonyamula zambiri za OFDMA zitha kufalitsidwa (ndi kulandiridwa) nthawi imodzi. SNR pa chonyamulira chilichonse imachepetsedwa, motero magwiridwe antchito apamwamba a ma transmitter amafunikira kuti mutsitse bwino.
Spectral flatness ndi muyeso wa kagawidwe ka kusiyanasiyana kwa mphamvu pazinyalala zonse za chizindikiro cha OFDMA ndipo ndizovuta kwambiri pamakanema okulirapo. Kusokoneza kumachitika pamene onyamula ma frequency osiyanasiyana amachepetsedwa kapena kukulitsidwa ndi zinthu zosiyanasiyana, ndipo kuchuluka kwa ma frequency angapo, kumakhala kosavuta kuwonetsa kupotoza kwamtunduwu.
6. 1024-QAM kusinthidwa kwadongosolo lapamwamba kuli ndi zofunikira zapamwamba pa EVM
Pogwiritsa ntchito kusinthasintha kwapamwamba kwa QAM, mtunda wapakati pa milalang'amba uli pafupi, chipangizocho chimakhudzidwa kwambiri ndi kuwonongeka, ndipo dongosolo limafuna SNR yapamwamba kuti iwononge molondola. Muyezo wa 802.11ax umafuna kuti EVM ya 1024QAM ikhale <−35 dB, pomwe 256 The EVM ya QAM ndiyochepera −32 dB.
7. OFDMA imafuna kulunzanitsa kolondola kwambiri
OFDMA imafuna kuti zida zonse zomwe zikukhudzidwa ndi kufalitsa zizilumikizidwa. Kulondola kwa nthawi, ma frequency, ndi kulumikizana kwa mphamvu pakati pa APs ndi masiteshoni a kasitomala kumatsimikizira kuchuluka kwa maukonde.
Ogwiritsa ntchito angapo akagawana nawo mawonekedwe omwe alipo, kusokonezedwa ndi wosewera woyipa m'modzi kumatha kusokoneza magwiridwe antchito a netiweki kwa ena onse. Masiteshoni amakasitomala omwe akutenga nawo mbali amayenera kufalitsa nthawi imodzi mkati mwa 400 ns, olumikizidwa pafupipafupi (± 350 Hz), ndikutumiza mphamvu mkati mwa ± 3 dB. Izi zimafuna mulingo wolondola womwe sunayembekezere kuchokera pazida zam'mbuyo za Wi-Fi ndipo umafunika kutsimikizira bwino.
Nthawi yotumiza: Oct-24-2023
