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He aha ka ʻenehana NB-IoT?

ʻO NarrowBand-Internet of Things (NB-IoT) kahi ʻenehana uila wikiwiki wikiwiki 3GPP cellular technology standard i hoʻokomo ʻia ma Release 13 e kamaʻilio ana i nā koi LPWAN (Low Power Wide Area Network) o ka IoT. Ua helu ʻia ʻo ia ma ke ʻano he ʻenehana 5G, hoʻohālikelike ʻia e 3GPP i ka makahiki 2016. ʻO ia kahi ʻenehana haʻahaʻa haʻahaʻa haʻahaʻa ākea (LPWA) i hoʻokumu ʻia i hoʻomohala ʻia e hiki ai i kahi ākea o nā polokalamu IoT hou a me nā lawelawe. Hoʻomaikaʻi nui ʻo NB-IoT i ka hoʻohana ʻana i ka mana o nā mea hoʻohana, ka mana ʻōnaehana a me ka pono spectrum, ʻoi aku hoʻi i ka uhi hohonu. Hiki ke kākoʻo ʻia ke ola pākaukau ma mua o 10 mau makahiki no ka nui o nā hihia hoʻohana.

Hoʻolālā ʻia nā hōʻailona papa kino hou a me nā ala no ka hoʻokō ʻana i ke koi koi o ka uhi lōʻihi - kuaʻāina a i loko o ka hale hohonu - a me ka paʻakikī o nā hāmeʻa ultra-haʻahaʻa. Hoʻohālikelike ʻia ke kumukūʻai mua o nā modula NB-IoT me GSM/GPRS. ʻOi aku ka maʻalahi o ka ʻenehana kumu ma mua o ka GSM/GPRS o kēia lā a manaʻo ʻia e emi koke kona kumukūʻai i ka piʻi ʻana o ke koi.

Kākoʻo ʻia e nā lako kelepona nui, chipset a me nā mea hana module, hiki i ka NB-IoT ke noho pū me 2G, 3G, a me 4G pūnaewele kelepona. Loaʻa iā ia ka pōmaikaʻi mai nā hiʻohiʻona palekana a me nā hiʻohiʻona pilikino o nā pūnaewele paʻa, e like me ke kākoʻo no ka hūnā ʻike o ka mea hoʻohana, ka hōʻoia ʻana, ka hūnā, ka pono ʻikepili, a me ka ʻike ʻana i nā lako kelepona. Ua hoʻopau ʻia nā hoʻolaha pāʻoihana mua NB-IoT a ua manaʻo ʻia ka holo ʻana o ka honua no 2017/18.

He aha ka laulā o NB-IoT?

Hiki i ka NB-IoT ke hoʻokomo i nā mea paʻakikī haʻahaʻa i nā helu nui (ma kahi o 50 000 mau pilina ma ke kelepona). Hiki ke hele ka laulā o ke kelepona mai 40km a 100km. Hāʻawi kēia i nā ʻoihana e like me nā pono hana, ka hoʻokele waiwai, ka logistic a me ka hoʻokele moku e hoʻopili i nā mea ʻike, nā trackers a me nā mīkini mika ma ke kumu kūʻai haʻahaʻa ʻoiai e uhi ana i kahi wahi ākea.

Hāʻawi ʻo NB-IoT i kahi uhi hohonu (164dB) ma mua o ka nui o nā ʻenehana LPWAN a me 20dB ʻoi aku ma mua o GSM/GPRS maʻamau.

He aha nā pilikia e hoʻoponopono ai ʻo NB-IoT?

Hoʻolālā ʻia kēia ʻenehana e hoʻokō i ka noi no ka uhi lōʻihi me ka hoʻohana haʻahaʻa haʻahaʻa. Hiki ke hoʻohana ʻia nā mea hana no ka manawa lōʻihi ma ka pā hoʻokahi. Hiki ke kau ʻia ʻo NB-IoT me ka hoʻohana ʻana i nā ʻōnaehana kelepona paʻa a hilinaʻi.

Loaʻa iā NB-IoT nā hiʻohiʻona palekana i loaʻa i nā pūnaewele kelepona LTE, e like me ka pale ʻana i ka hōʻailona, ​​ka hōʻoia paʻa a me ka hoʻopili ʻana i ka ʻikepili. Hoʻohana pū ʻia me kahi APN i hoʻokele ʻia, e maʻalahi a paʻa ka hoʻokele pili ʻana.


Ka manawa hoʻouna: Sep-19-2022