NB-IoT

NB-IoT窄頻物聯網(Narrowband Internet of Things)的簡稱,是由3GPP訂定的LPWAN无线电標準,為了讓行動设备及服務的範圍可以更遠[1][2]。此標準在2016年6月的3GPP Release 13定版(LTE Advanced Pro[3]。其他的3GPP物联网技術包括有eMTC英语eMTC(增強型機器類通信)及EC-GSM-IoT[4]

NB-IoT特別著重在室內的覆蓋率、低成本、長電池壽命以及高連接密度。NB-IoT使用的是長期演進技術標準的一部份,不過限制頻寬在200kHz的單一窄頻。NB-IoT使用OFDM調變來處理下行通訊,用SC-FDMA來處理上行通訊[5][6][7][8][9]

全球行動供應商協會英语Global Mobile Suppliers Association在2019年3月宣佈,已有超過100家運營商佈署了NB-IoT或LTE-M網路[10]

佈署

依照全球行動供應商協會英语Global Mobile Suppliers Association在2019年3月的資訊[10]

  • 在69個國家的149個運營商投資NB-IoT或LTE-M的網路技術
  • 這些運營商中,有53個國家的104個運營商至少佈署了NB-IoT或LTE-M網路,其中有19個國家的20個運營商佈署NB-IoT以及LTE-M網路[11]

設備及模組

3GPP相容的LPWAN設備生態系統仍在繼續成長。全球行動供應商協會英语Global Mobile Suppliers Association在2019年4月識別了210個支援Cat-NB1/NB2或Cat-M1的設備,是GAMBoD資料庫在2018年3月的二倍以上。而且其中,有156個模組支援Cat-NB1、NB2及Cat-M1(包括已知的變體)、100個模組支援Cat-M1 (包括已知的變體),103個模組支援Cat-NB1或NB2(包括已知的變體)[11]

為了將NB-IoT整合到IoT發展的創客板塊中,荷蘭的IoT硬體及軟體公司SODAQ,在Kickstarter众筹了NB-IoT Shield開發板[12]。他們希望和模組製造商u-blox英语u-blox合作,開發整合NB-IoT及LTE-M的創客電路板[13]

相關條目

參考資料

  1. ^ NarrowBand – Internet of Things (NB-IoT). (原始内容存档于2020-12-05). 
  2. ^ Grant, Svetlana. 3GPP Low Power Wide Area Technologies - GSMA White Paper (PDF). gsma.com. GSMA: 49. 2016-09-01 [2016-10-17]. (原始内容存档 (PDF)于2017-01-10). 
  3. ^ Standardization of NB-IOT completed. 3gpp.org. 3GPP: 1. 2016-06-22 [2016-08-19]. (原始内容存档于2020-09-22). 
  4. ^ Extended Coverage - GSM - Internet of Things (EC-GSM-IoT). gsma.com. GSMA: 1. 2016-05-11 [2016-10-17]. (原始内容存档于2017-03-06). 
  5. ^ Ryu, Jaeku. NB-IoT Handbook. [2019-08-15]. (原始内容存档于2020-05-06). 
  6. ^ Lawson, Stephen. NarrowBand IoT standard for machines moves forward. computerworld.com. Computerworld / International Data Group: 1. 2015-09-21 [2015-09-24]. (原始内容存档于2018-06-12). 
  7. ^ Jones, Dan. Ericsson, Intel, Nokia Back New Narrowband LTE IoT Spec. lightreading.com. Light Reading: 1. 2015-09-11 [2015-09-24]. (原始内容存档于2019-08-15). 
  8. ^ Scales, Ian. 3GPP agrees ‘harmonized’ proposal for narrowband IoT radio technology. telecomtv.com. TelecomTV: 1. 2015-09-18 [2015-09-24]. (原始内容存档于2017-12-19). 
  9. ^ Lawson, Stephen. LTE standard for Internet of Things machines gets the green light. PC World /International Data Group: 1. September 22, 2015 [September 24, 2015]. (原始内容存档于2018-05-28) –通过pcworld.com. 
  10. ^ 10.0 10.1 GSA: Global Narrowband IoT – LTE-M networks – March 2019页面存档备份,存于互联网档案馆) (retrieved 27 March 2019-03-27)
  11. ^ 11.0 11.1 GSA: NB-IoT and LTE-M: Global Ecosystem and Market Status, April 2019页面存档备份,存于互联网档案馆) (retrieved 2019-04-24)
  12. ^ The first NB-IoT shield for Arduino: supported by T-Mobile. Kickstarter. [2019-06-25]. (原始内容存档于2020-10-25) (英语). 
  13. ^ SODAQ SARA AFF R410M. SODAQ. [2019-06-25]. (原始内容存档于2020-08-13) (英语). 

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