Chii chinonzi 3G mufoni, uye nei ichichibatsira kwatiri?

Tinorarama uye tinofamba-famba munyika yenhau inoyerera, tichiita zvakawanda zvekufonera, asi kwete nguva dzose tiri muhofisi kana pamba, pane imwe nguva kuwirirana nehutano hwe 3G (shoma nokuda kwe "chizvarwa chechitatu"). Ngatitange kubvunza mubvunzo: "Chii chiri 3G mufoni?"

IEurope inotungamirirwa ne "mutauro" chaiwo weiyo mitemo - UMTS, iyo inopesana pakati pemazinga e-CDMA yepamusoro uye ine ruzivo rwakakura uye nhamba yevanyoresa GSM. 3G mitambo inoshanda mumutambo we decimeter, inenge 2 GHz, ine chidimbu che data ye 1-3 Mbps. Zvinhu zvinokosha zvemasangano matatu -G zvinosanganisira kutaurirana kwemashoko uye kutapudza deta. Vatsoropodzi vehutano huno hwehutano hwekuvhara zvakavanzika, vachiyeuka mutemo wekare, musanzwisisi kuti chii cha 3G mufoni ikozvino. Nhasi, kudhanha kwemashoko pamhanho yakakwirira kunopa kukurukurirana sebhizimisi nzvimbo (e-mail, videoconferences, kure kurechedza kune databases, kutarisira mabhengi emabhangi ), uye zvido zvemunhu (mitambo, masangano evanhu, masangano evanhu vakawanda, multimedia complexes, kutenga Indaneti). Mafambisi ekufambisa anofanana zvakasiyana-siyana nekukurumidza kwechinhu chacho. Kana iwe uri panzvimbo yepaiti - 2048 Kbit / s, uchifambisa nekukwira kusvika kusvika 3 km / h - 348 kbps, kusvika 120 km / awa - 144 Kbit / s. Vashandisi vakakurumbira vanonakidzwa nemhepo inotengeswa yeInternet, iyo inovapa mukana wekubhadhara mari yekubhadhara kushandisa zvisingabatsiri zvishandiso zvepasi rese. Vanhu vazhinji vari kufarira mubvunzo uyu: "Ungasarudza sei munhu anofambisa?" Mhinduro yacho iri nyore. Chokutanga, ona kana iwe uchigutsikana nehuwandu hwahwo. Zvadaro ongorora maitirwo omubatsiri. Zvino ita chisarudzo.

Asi internet 3G - chii ichocho? Kwete kungofanana nemafoni. Kana uine PC, netbook, laptop, saka iwe unoda 3G modem kuti ugare kune Indaneti isina wire. Inonyanya kukosha ndeye USB-modem, iyo yakabatanidzwa zvakananga kumusuo we USB wekombiyuta. Mukuwedzera, ExpressCard uye PCMCIA varipo zvinokwanisika. Nokuda kwekugashira kwakagadzirirwa kwechiratidzo, kusarudzwa kwehutano hwechigadziro chiri mubvunzo, huwandu hwehuwandu hwaro, uye chiyero chekutumirwa kwemashoko chinokosha. Zvakanaka, kana shongwe iri pedyo yeunopayo yava pedyo. Nechinhambwe chema 10-50 km kushanda kwakasimba kwe modem ichapa 3G antenna. Iko mukati kuchaita kuti iwedzere kuburikidza ne 5-10 decibel, asi dzimwe nguva kune imwe kunze, yakasimba zvikuru, inodiwa. Nokuda kweizvi, unogona kushandisa 3G Wi-Fi router. Ndapota cherechedza kuti kune zvikwata zvitatu zveIndaneti: 3G, 450, 800, 2100 MHz - iyo modem inoenderana ne antenna inosarudzwa.

Musika wemazuva ano smartphones uye vatauriri vari kukurumidza kukurumidza. Aya ndiwo "maitiro" ekare anoratidza izvo 3G iri mufoni. Ivo, kunze kwekukurukurirana kwezwi, vakagadzirwa ne 3G modem yakabatanidzwa, vanoshumira ruzivo rwekushandura neWWW. Pamberi pekufambira mberi kune HTC uye Samsung (Android platform), uye Apple (iOS operating system).

Nhasi, vashandisi vari kuwana mukurumbira nemagetsi efoni ane diagonal - mahwendefa makuru. Izvi zvinogona kuva ne 3G modem yakabatanidzwa (iyo inokurudzirwa, kunyanya kana mugadziri ari China), kana kwete - saka unoda kuzvitenga. Mamiriro e "kusagamuchirwa" kwevatyairi ve modem yakatengwa yakagoneka.

Irolectics yekushandura kwesayenzi uye yehutengi, kunzwisisa kwakadzama kwevasayendisiti nemubvunzo "chii cha 3G mufoni" chakatungamirira kumutsara unotevera - 4G. Pasinei nehutano hwakakosha, 3G inongova chikamu chakasiyana chekusimudzira nyika yose. 4G teknolojia, iyo ine zita rimwe - LTE (Long TermEvolution), inovandudza mararamiro aripo, kuwedzera kukurumidza, pamwe nekuwanda kwemashoko akaparidzirwa. Norway neSweden vave mapiyona emichina itsva. Hapana imwe nzira yekufambira mberi mberi: vashandi veRussia vanonzi Beeline, MTS, Megafon vakatotanga basa maererano nesungano yepasi rose yekutaurirana mazano mumutemo weLTE.