Nzirai iyo Cell Phone Networks Inoshanda
Chii chinonzi GSM?
GSM teknolojia ndiyo inyanzvi iyo iwe (kunyanya zvichida) uye 80% yevashambadzi vashandisi vanoshandisa pakuita foni pamafoni avo efoni. Nenzira, iyo inowanikwa uye inoshandiswa kusina wireless protocol inoshandiswa pakushambadzira.
GSM yakatanga zvakare muna 1982 uye yakabva yatumidzwa zita reboka rakaronga iyo, Groupe Spécial Mobile, kubva pane iyo GSM yakanyorwa. Purogiramu yepamutemo yakatangwa pachayo muFinland muna 1991. Ino yava kunzi Global Systems for Mobile communications.
GSM inoonekwa se 2G (yechipiri chizvarwa) protocol. Inoshanda nemasero, ndicho chikonzero nharaunda ye GSM inonziwo mambure emagetsi, uye mafoni anoshandisa GSM anonzi masharefoni. Iye zvino chii chiri sero? Shanduro ye GSM inoparadzaniswa kuva masero, imwe neimwe inosanganisira nzvimbo duku. Devices (mafoni) zvino anowanikwa uye anotaurirana nawo kuburikidza aya masero.
Shanduro ye GSM inosanganisira zviyero zvekubatanidza (gateways etc.), zvinodzokorora kana kutumirazve, izvo vanhu vanowanzonzi antennas - idzi zvivako zvesimbi zvakakura semasvingo makuru-, uye nhare dzevashumiri.
Iyo GSM kana masero emagetsi zvakare inzvimbo yekutaurirana kwe 3G, iyo inotakura dhamba pamusoro peiyo iripo yekutengesa kweInternet.
SIM Card
Nhare imwe neimwe yefoni inobatanidza ne-GSM network uye inowanikwa mairi kuburikidza neka SIM (Subscriber Identity Module) kadhi, iyo kadi kadi inowanikwa mukati mefoni. SIM card imwe neimwe inopiwa nhamba yefoni, yakaoma-coded mukati mayo, iyo inoshandiswa sechinhu chakasiyana chekujekesa kwechigadzirwa pane network. Iyi ndiyo iyo foni yako inounganidza (uye kwete yevamwe vanhu) apo mumwe munhu anoshandisa nhamba yako yefoni.
SMS
GSM vanhu vakagadzira nzira yekukurukurirana iyo inoshandiswa mari shoma kune imwe nzira inodhura yekutaurirana kwemashoko; iyo ndiyo Short Messaging System (SMS). Izvi zvinosanganisira kutumira mameseji mashomanana mapepa pakati pemafoni vachishandisa nhamba dzefoni dzekutaura.
Pronunciation: gee-ess-emm
Uyewo Anozivikanwa Se: cellular network, cell network
GSM uye Voice over IP
GSM kana foni dzemafoni dzinowedzera huwandu hwehuwandu hwemari yemwedzi yevanhu vakawanda. Kutenda kuIzwi pamusoro pePI ( VoIP ), iyo inopfurikidza nhare dzemagetsi nemakato izwi se data pane Internet, zvinhu zvakachinja zvikuru. Sezvo VoIP inoshandisa Indaneti iyo yakatove yakasununguka, VoIP inowanzova yakasununguka kana yakaderera zvikuru kana ichienzaniswa neHMM call, kunyanya kumatare enyika.
Iye zvino, mapurogiramu akaita se Skype, WhatsApp , Viber, LINE, BB Messenger, WeChat uye nezvimwe zvakawanda zvinopa mafonero asingasunungurwi munyika yose pakati pevashandisi vavo. Vamwe vavo vanopa mafoni kune dzimwe nzvimbo zvinodhura kupfuura kudana kwaMMM. Izvi zvinokonzera kuderera kwenhamba yefoni dze GSM dziri kuiswa, uye SMS inotarisana nekupererwa nekusunungurwa kwemeseji pakarepo.
Zvisinei, VoIP haina kukwanisa kurova GSM uye tsika dzetsika yefoni pahutano hwezwi. GSM yehutano yezwi inoramba ichiri nani kudarika maIndaneti-based call sezvo sekupedzisira hazviiti kuvimbiswa uye mutsara hauna kutsaurirwa sa GSM.