UMTS - he aha te mea te reira? hangarau UMTS. Telecommunications pūkoro

Kei te whakawhanakehia tēnei wā kōrero pūtau i roto i te ahunga kotahi anake - ki te whakapai ake i te kounga o te kōrero, me te whakapiki ake i te auau raraunga. I runga i te mākete ao i reira he he tukanga tonu o te hanganga o ngā paerewa matatau me te hangarau. I roto i te raina ki tenei, iku'anga hou me ngā taitara. Na tetahi o ratou ko te UMTS. E kia kōmaka reira i roto i.

prehistory

Ko tēnei wā mākete pūkoro ao te pai tino. E te reira i wahi i roto i tata tangata katoa o tetahi whenua. Ko reira i reira he hoki whakataetae mura nei. He he he whakapai ake tamau o te hangarau kōrero pūkoro. Kei te haumi puhoi ārahi kaihanga i te whanaketanga o te taputapu hou, me te wāhanga mō ngā pūnaha kōrero pūkoro. hei hangarau UMTS kua tetahi o aua whanaketanga.

pūkoro whatunga o te toru o whakatupuranga 3G kōrero

Kei te hāngai te reira i runga i pākete tuku raraunga. Ko te putanga o taua whatunga tika ki te tono te whakanui ake hoki te hangarau nui-tere. E whakamahia whatunga toru o whakatupuranga Modern i roto i nga mara o:

• kōrero waea ataata;
• utu pāhekoheko o ngā raraunga i roto i ngā hōputu rongorau rerekē;
• tuku o nui o ngā raraunga, me te whakapakoko;
• mahi ki intranets me te Internet;
• päpäho mōhiohio rongorau i roto i te aratau hangarite.

Take e pā ana ki te Waeine mo 3G-whatunga, whai wāhi tēnei wā i roto i te International Telecommunication Union. Na ko reira e tika ana ki te whakaaro i te UMTS hangarau. Ko, ka riro te reira mārama ki te titiro koutou ki tona hanga, me te whakamahi.

hanga

I whakawhanakehia hangarau UMTS i te Pākehā Institute mo Telecommunications Paerewa āta mo Europe. E tenei whakaiti i roto i te piringa e whai ake nei: Universal Mobile Telecommunications Pūnaha. Ka rite ki WCDMA atanga rangi whakamahia te konei. A kia tuhia te reira e he tino rerekē enei ariā e rua, e kore e e tukua ki a ratou kia whakamahia rite taurite.

Kei te maha kite te paerewa UMTS rite te kōwhiringa whakawhiti i waenganui i te hangarau 2G me 3G-4G. Ko, ki te awhina o taua mea e taea e te hanga e koe i te whakawhitinga atu maheni ki te taumata hou o kōrero pūkoro kahore te huringa nui o taputapu, ngā i te kau. Ka rite ki te raina turanga whatunga whakamahia konei GSM MAP, me te whatunga uru irirangi he GSM / Mata me te WCDMA hangarau ngā. hanga Tata i runga i te tihi o whatunga GSM kua tīariari, engari mahi i roto i te whakarara. Whakawhiti i waenganui i nga kupenga e kawea te teihana kaitango te i roto i aunoa.

Ko te ngako o te hangarau

I roto i te UMTS (me pehea mahi reira, ka e mohio ki reira atu) hanumi tikanga pāpāho irirangi rerekē e rua. E whakamahia ngā pūrere rererangi tuku UTRA atanga. Nā ki te whakatakotoranga 3GPP Releace 4 ko kuwaha pāpāho, kïia e kuwaha, me te tūmau pokapū whakawhitinga. Na whakahaere reira ki wehe te MSC kïia e ngā mōhiohio, me te kaiwhakamahi raraunga. I tua atu, kei tenei whakatakotoranga he whakamārama taipitopito o te wae turanga ao ki te whatunga uru UMTS irirangi. He aha te mea te reira? Tenei tikanga taea hoki reiti raraunga ki runga ki te 2 megabits ia rua. Na i reira e tahi 3GPP ngā.

hangaia UTRAN te ki te whakakotahi i te teihana turanga me o te whatunga reo irirangi, me he reira haepapa mo te mahi o kōwae RF katoa me takere i roto i UMTS. RNC Ko te pūmana whatunga, e taea te eke tika i roto i te taputapu teihana turanga. huaina te huinga o enei huānga e rua, ara te pūmana teihana turanga, me te ōrite ki reira, i roto i te tauira hanganga o te whatunga UMTS ko te pūnaha whatunga. I roto i te kōwae turanga kotahi taea te whakamahi te maha pūnaha rite.

Whai wāhitanga ki te mahi

3G UMTS taea te whakamahi o te taputapu i kamupene rerekē, mai whakamahi reira atanga lu. whakarato Mā te luR ha faingamālie mo te whakatinanatanga o te rahu rahu ngohengohe i waenganui i ngā teihana maha, e kia whakamahi i te momo o te taputapu. tiakina Pūkoro UMTS paerewa kōrero kei i te hononga break i runga i te nekehanga, no te mea whakamahi te reira i te tukupoi ngohengohe. Hei tauira, ka peia i runga i te huarahi ki te teihana turanga mangai whakapumautia, te tawhiti i tetahi o ratou tonoa kōrero ki te kiritaki e ki te tata ki reira. e kore e haukotia koimutu te hononga, rite tupu i roto i whatunga GSM. UMTS faatura tenei i roto i te mea nui friendlier ki te kaiwhakamahi. O te akoranga, ko te pono tenei anake hoki rohe e kua whakanuia e te kapinga whatunga pai. Kua Lub atanga kua hangaia rawa tuwhera āta ki te kukume haumi o kaiwhakanao taputapu i roto i tenei mara.

taputapu whatunga

Poraka tapahanga uru o taputapu tikanga, i roto i nei ko:

• transcoder;
• te rēhita tae mai;
• he rēhita wāhitau;
• wae tautoko GPRS;
• Gateway ki whakawhiti ki ētahi atu whatunga;
• whakawhiti pokapū mō kōrero pūkoro;
• pūmana teihana turanga.

e Last i runga i te mahi o te rauemi tohatoha hongere, hongere whakawhitinga, whakahaere tukupoi, kohinga, me te tuku o te telemetry ki te pūnaha mana. I te transcoder tēra ki te whakawaehere me te wetemuna o tohu kupu tuku te whakamahi i kōpeketanga. māngai te rēhita wāhitau e te pātengi raraunga o te kaiohauru katoa o te operator whatunga pūkoro. Kei te rēhita i te āheinga mōhiohio e pā ana ki kaiohauru e te hunga i roto i te rohe rohe whatunga.

UMTS mahi parau tumu

E kua riro te reira mārama i te whakaahuatanga i mua, me te rere i te whatunga taua, he mea e tika ana ki te matau. I roto i te poraka i mahi CN i te ngā mahi tino nui, e kua heke ki te hono i te teihana pūkoro ki te whatunga, reira atu whakararangi, localization pūtau me te kōwhiringa o te kaitango, te whakatinanatanga o waea taumai a puta, te tukupoi kaitango i waenganui i ngā teihana turanga. Kei te arorau wehea CN ki rua rohe - CS me PS. Ko te teihana turanga he kawenga mō tohu tukatuka irirangi, hongere waehere me te auau urutaunga, me te ake. I tua atu, whakahaere i te reira i te mana o te koropiko i roto. kia whakatinana i UMTS pūtau e conventionally wehea he hononga ki ngā whatunga o waho ki e rua ngā rōpū: ki kē ara iahiko , me te whakawhiti pākete whatunga. Ko te kōwhiringa tuatahi mo te kōrero waea, me te tuarua - ki te hono ki te Ipurangi. Mai whakawhiti pokapū ngā taunga ona mahi ki whatunga pahoho, kua tukua ai ki nga āhuatanga katoa e kua hiahiatia hoki whakawhiti takere, a he mea haepapa mō te whakahaere hononga. mahi Whakawhiti Centre ngā tukanga e hiahiatia ana mō te tukupoi me te rēhita wāhi.

Āhuatanga atu

E āhuatanga whatunga whakatupuranga hou i ngā te aroaro o QoS ki te huinga o ngā kaupapa matua: te roma, kōrero, pāhekoheko me te whakamārama. Ka rite ki kua whakahuatia, ko te whakawhitinga ki whatunga 3G te whakamahi i UMTS. E kua reira kua whakaahuatia i roto i te tahi mau taipitopito. Mea nui, titau te iteraa whakamutunga o te whakawhitinga taua whakakapinga rite te kāpeka kaitango me nga pūnaha teihana turanga. I tua atu, ki te hiahia whakakapi te nuinga o te taputapu e whakamahia ana i te taumata o te whatunga matua i te kau. Te hoahoanga rerekē tino i te aroaro o te wehenga ki e rua taumata pana motuhake - ratonga whakawhitinga me te mana tukatuka tohu. Ko te kawenata ki te meka e hiahia mo te whakawhiti i muri ki whatunga whakatupuranga muri ki te whakapai ake i te pūnaha teihana turanga me terminals kaiwhakamahi katoa tenei. here UMTS New, me te whakatutukitanga o enei whāinga katoa ka rapua e te hanganga o ngā wāhanga hiko, me te te kukume haumi nui.

Pehea e mahi i te reira?

I te kau, ki 3G ngā maha ngā paerewa, tino whānui whakamahia CDMA2000 me UMTS o te ao. hāngai hangarau rua e i runga i te maha tohatoha waehere uru o tohu. Ki te awhina o ratou te whakahaere ki te whakawhānui i te tohu pēne kuiti i roto i whatunga pūtau tikanga. O te akoranga, hangaia tenei roha te ki te whakarato i te uru aunui ahokore ki te Internet.

Scheme o taua whatunga he tino māmā: te pūrere kaiwhakamahi e pā ana ki te teihana kaiwhakahaere pūkoro ki te tautoko reira tenei paerewa, me te ko tata. kōrero pūtau i roto i tenei take mahi i runga i te pūtoro nui nui atu Wi-Fi, kia kore e kaiohauru pera tino iti i roto i te wāhi, te whakamahi i te hononga ipurangi ahokore. whakamarie taea here UMTS oaoa i te ratonga katoa e whakaratohia ana. Ki te rau te kaiwhakamahi te pūtoro o tetahi teihana, riro ia i roto i te whānuitanga o ia, me kore mate o kōrero. Nuinga o ngā wā auau UMTS ko 2100 MHz.

Hei te mahi ki taua whatunga titau taputapu motuhake kaiwhakamahi, waea ie atamai e tautoko 3G, USB-pouwhanga, smartphones, papa me rorohiko pona rawa ki kōwae hanga-i roto i.

Utu 3G E te nuinga kawea i roto i te kotahi o e rua ara: waka utu ohaurunga ranei. I roto i te take tuarua, he whai wāhi ki te Internet mo te tetahi wa, te tikanga he marama te kaiwhakamahi. He conventionally mahere tāke mutunga, e whai he motunga waka tika nui, engari he reira te tikanga uaua ki te noho i tēnei marama.