Yini ubuchwepheshe be-NB-IOT?

I-Marlowband-Intanethi yezinto (NB-IOT) iyi-Wireless Technology Entsha Ekhulayo Eqinile ye-3GPP Celmnic Technology eyethulwe ekukhishweni 13 ebhekana neLPWAN (I-Low Power Power Areat Network) ye-IOT. Kuhlukaniswe njengobuchwepheshe be-5G, olwenziwe nge-3GPP ngonyaka we-2016. Kuyinto ubuchwepheshe obuphansi obuphansi be-Power Power Power Power (LPWA) ethuthukisiwe ukunika amandla amadivaysi nezinsizakalo ezintsha ze-IOT. I-NB-iot ithuthukisa kakhulu ukusetshenziswa kwamandla kwamadivayisi womsebenzisi, umthamo wesistimu kanye nokusebenza kahle kwe-spectrum, ikakhulukazi ekumbozekeni okujulile. Impilo yebhethri yeminyaka engaphezu kwe-10 ingasekelwa ngamacala ahlukahlukene okusetshenziswa.

Izimpawu ezintsha ezingokomzimba kanye neziteshi zenzelwe ukuhlangabezana nesidingo esidingekayo sokumboza okwengeziwe - izindawo zasemakhaya nasezihlane - kanye nokuxaka kwensiza okuphansi. Izindleko zokuqala zamamojula we-NB-IOT kulindeleke ukuthi aqhathaniswe ne-GSM / GPRS. Ubuchwepheshe obuphansi bulula kakhulu kunangemuva kwanamuhla GSM / GPRS kanye nezindleko zalo kulindeleke ukuba zinciphe ngokushesha njengokukhuphuka kokufunwa.

Isekelwa yiyo yonke imishini esemahle yeselula, ama-chipset kanye nabakhiqizi bemodyuli, i-NB-IOT ingaba khona ngamanethiwekhi weselula we-2G, 3G, kanye ne-4G. Ibuye ibe nezinzuzo kukho konke ukuphepha kanye nezici zobumfihlo zamanethiwekhi weselula, njengokusekelwa kobunikazi bemfihlo yomsebenzisi, ukuqinisekiswa kwebhizinisi, ubumfihlo, ubuqotho bedatha, kanye nokukhonjwa kwemininingwane yeselula, kanye nokwethembeka kwemishini yeselula. Ukwethulwa kokuqala kwe-NB-iot okuqediwe sekuphothuliwe futhi kulindelwe ukukhishwa komhlaba wonke ngo-2017/18.

Luyini uhla lwe-NB-Iot?

I-NB-IOT inika amandla ukuthunyelwa kwamadivayisi alula ambalwa ezinombolweni ezinkulu (cishe ama-50 000 ukuxhumana kweseli ngalinye). Ibanga leseli lingasuka ku-40km liye ku-100km. Lokhu kuvumela izimboni ezifana nezinsiza, ukuphathwa kwempahla kanye nokuphathwa kwemikhumbi ukuxhuma izinzwa, ama-trackers namadivayisi we-metering ngezindleko eziphansi ngenkathi emboza indawo ebanzi.

I-NB-IOT ihlinzeka ngokumboza okujulile (164DB) kunobuchwepheshe obuningi be-LPWAN kanye ne-20db ngaphezulu kwe-GSM / GPRS evamile.

Iziphi izinkinga i-NB-Iot iyazixazulula?

Lobu buchwepheshe benzelwe ukuhlangabezana nesidingo sokuthola imali enwetshiwe ngokusetshenziswa kwamandla okuphansi. Amadivayisi angaxhaswa ngezikhathi ezinde kakhulu ebhethri elilodwa. I-NB-iot ingathunyelwa kusetshenziswa ingqalasizinda ekhona yeselula nethembekile.

I-NB-iot nayo inezici zokuphepha ezikhona kumanethiwekhi weselula we-LTE, njengokuvikelwa kwesiginali, ubuqiniso obuvikelekile kanye nokubethelwa kwedatha. Kusetshenziswe ngokubambisana ne-APN ephethwe, kwenza ukuphathwa kokuxhumana kwedivayisi kube lula futhi kuvikeleke.