NarrowBand-Internet of Things (NB-IoT) ke tekhenoloji e ncha e holang ka potlako ea thekenoloji ea thekenoloji ea 3GPP e hlahisitsoeng ho Release 13 e sebetsanang le litlhoko tsa LPWAN (Low Power Wide Area Network) tsa IoT. E khethiloe e le thekenoloji ea 5G, e emetsoeng ke 3GPP ka 2016. Ke theknoloji e thehiloeng ho maemo a tlaase a matla a tlaase (LPWA) e entsoeng ho nolofalletsa lisebelisoa le litšebeletso tse ngata tse ncha tsa IoT. NB-IoT e ntlafatsa haholo ts'ebeliso ea matla ea lisebelisoa tsa mosebelisi, bokhoni ba sistimi le ts'ebetso ea spectrum, haholo-holo ha ho phatlalatsoa ka botebo. Bophelo ba betri ea lilemo tse fetang 10 bo ka tšehetsoa bakeng sa linyeoe tse fapaneng tsa ts'ebeliso.
Lipontšo le likanale tse ncha tsa 'mele li etselitsoe ho kopana le tlhokahalo e matla ea ts'ireletso e atolositsoeng - mahaeng le ka hare ho ntlo - le ho rarahana ha lisebelisoa tse tlase haholo. Litsenyehelo tsa pele tsa li-module tsa NB-IoT li lebelletsoe ho bapisoa le GSM/GPRS. Theknoloji ea motheo e bonolo ho feta ea kajeno ea GSM/GPRS 'me litšenyehelo tsa eona li lebeletsoe ho fokotseha ka potlako ha tlhokahalo e ntse e eketseha.
E tšehelitsoe ke lisebelisoa tsohle tse kholo tsa mehala, baetsi ba li-chipset le li-module, NB-IoT e ka ba teng hammoho le marang-rang a 2G, 3G le 4G. E boetse e rua molemo ho tsoa lits'ebetsong tsohle tsa ts'ireletso le lekunutu tsa marang-rang a mehala, joalo ka ts'ehetso ea lekunutu la boitsebiso ba basebelisi, netefatso ea mokhatlo, lekunutu, botšepehi ba data, le boitsebiso ba lisebelisoa tsa mohala. Likhoebo tsa pele tsa NB-IoT li se li phethiloe 'me ho lebelletsoe ho phatlalatsoa lefatšeng ka bophara bakeng sa 2017/18.
Mefuta e fapaneng ea NB-IoT ke efe?
NB-IoT e thusa ho romelloa ha lisebelisoa tse rarahaneng tse tlase ka lipalo tse kholo (hoo e ka bang likhokahano tse ka bang 50 000 ka seleng). Sebaka sa sele se ka tloha ho 40km ho isa ho 100km. Sena se lumella liindasteri tse kang lits'ebeletso, tsamaiso ea thepa, tsamaiso ea thepa le tsamaiso ea likepe ho hokahanya li-sensor, li-tracker le lisebelisoa tsa metering ka theko e tlaase ha li ntse li sebetsa sebakeng se pharaletseng.
NB-IoT e fana ka khaso e tebileng (164dB) ho feta litheknoloji tse ngata tsa LPWAN le 20dB ho feta GSM/GPRS e tloaelehileng.
NB-IoT e rarolla mathata afe?
Theknoloji ena e etselitsoe ho khotsofatsa tlhoko ea ts'ireletso e atolositsoeng ka tšebeliso e tlase ea matla. Lisebelisoa li ka sebetsa nako e telele haholo ka betri e le 'ngoe. NB-IoT e ka sebelisoa ho sebelisoa lisebelisoa tsa cellular tse teng le tse ka tšeptjoang.
NB-IoT e boetse e na le likarolo tsa ts'ireletso tse teng marang-rang a LTE, joalo ka ts'ireletso ea matšoao, netefatso e sireletsehileng le encryption ea data. E sebelisoa hammoho le APN e laoloang, e etsa hore tsamaiso ea khokahanyo ea lisebelisoa e be bonolo le e sireletsehileng.
Nako ea poso: Sep-19-2022
