HSDPA - yog dab tsi? HSDPA yuam shutdown

Cov cuab yeej ntawm high-ceev tuaj rau lawv nkag ntawm ib saab tswv yim channel - yog li sawv HSDPA. Yuav ua li cas yog nws thiab dab tsi yog qhov zoo ntawm hom ntawv no niaj hnub no paub xwb ib tug me me muaj pes tsawg tus ntawm cov neeg, tab sis txoj kev sib raug yog heev hnub no. Thiab yog hais tias cia li muaj ib tug ob peb xyoos dhau los, feem ntau cov kws txawj xwb xav txog dab tsi nws yog thiab zoo li cas rau yav tom ntej yuav tos rau hom ntawv no, tab sis tam sim no zoo tib yam subscribers koom siv xws li ib tug compound, uas yog faib raws li ib tug 4G «plaub tiam kev twb kev txuas."

Yog vim li cas yog nws yuav tsum tau?

Zuag qhia tag nrho cov teeb meem no nyob rau hauv lub teb ntawm peb-tiam tes hauj lwm yog, muab tso rau nws mob me, bleak, thiab hais tias yog lub ntsiab yog vim li cas yog vim li cas muaj ntau yam kev pab cuam muab kev pab yog xav nyob rau hauv HSDPA kev twb kev txuas. Yuav ua li cas yog nws - cov neeg siv tsis paub, tab sis 4 G tsiaj nyiam ntau dua 3G, vim hais tias nws yog dab tsi raws li ib tug sai thiab zoo dua.

Ob peb cov neeg paub hais tias nyob rau hauv thaum ntxov 2000s nyob rau hauv cov teb chaws Europe CDMA thiab HSDPA tswv tau muab ntau tshaj $ 100 billion. Rau tsuas tau daim ntawv tso cai rau lub txiag ntawm peb-tiam tes hauj lwm. Yog li, lub plurality ntawm cellular tuam txhab uas muag tau astronomical nuj nqis, yog li ntawd lawv mus tsuas daig. Tom qab tag nrho, qhov tseeb yog tias txog thaum nyuam qhuav, kev ua lag luam nyob rau hauv Feem ntau, muaj tsis muaj 3 G-xov tooj, thiab yog li ntawd muaj yog tsis muaj txoj kev los hu cov yam tus naj npawb ntawm cov neeg rau npe tam sim no, uas yuav cia rau recapture lub peev.

HSDPA - lub mobile Internet hnub no

Ntawm cov hoob kawm, ntev los no nws pib active kev loj hlob ntawm cov tuam txhab uas muag, uas nyob rau ib lub sij hawm ua lag luam nyob rau hauv lub 3G kheej, raws li zoo raws li HSDPA. Yuav ua li cas yog nws? Qhov no paib ib tug loj tus naj npawb ntawm xov tooj, nyob rau hauv uas ib lub sij hawm rau siv 3G raws li ib tug active Internet kev twb kev txuas, nrog ib tug tsis tshua ceev ua los ntawm ntau yam ntaub ntawv ntawm lub network. Nyob rau hauv peb lub sij hawm yog yuav luag txhua txhua niaj hnub txawb lub xov tooj, uas twb tso tawm nyob rau hauv qhov kawg ob peb xyoos, nyob rau ib tug yuav tsum hauv paus yog txawm peem rau nrog kev nkag mus rau lub 3 G. Tseeb, thaum lub sij hawm ubiquity ntawm lub Internet yuav unthinkable siv ib tug qeeb qub tebchaw lwm tshaj li ib feem tsawg tsawg ceev.

Leej twg siv nws?

Nyob rau hauv lub mobile ua lag luam ntau thiab ntau pib tshwm li uas muaj, nyob rau hauv tas li ntawd mus 3G, HSDPA technology no kuj txaus siab. Yuav ua li cas yog nws thiab dab tsi yog qhov zoo ntawm no technology tshaj GPRS, advanced cov neeg siv feem ntau tsis paub li ntawd, muaj coob tus neeg nug cov zajlus kom lo lus nug: yog nws muaj nqis muas tau ib lub xov tooj, thiab seb nws yuav zoo dua nyob rau hauv cov nqe lus ntawm tus txheejtxheem lub Internet.

Muaj ntau tais xav txog qhov no technology raws li ib tug hloov theem mus rau ib tug high-ceev network hu ua 4 G, txij thaum lub network yog ua tau hauj lwm zoo nyob rau hauv nroog tej yam kev mob thiab tau yooj yim yuav siv hauv tsev.

Yuav ua li cas yog nws zoo?

Qhov no technology tso cai rau koj mus ib txhij ua ib tug xov tooj ntawm cov neeg siv los ntawm kev siv ntawm Multiplexing technology nrog lub sij hawm, thiab code tis. HSDPA ntsiab ua hauj lwm hauv paus ntsiab lus - ntau cov ntaub ntawv, ntau dua ceev. Hais tias yog dab tsi ua rau qhov no network ib tug ntawm cov feem ntau tsim nyog los mus daws cov sib quas ntus tsheb rau ntau cov neeg.

Lub hauv paus ntawm no technology muaj cov nram qab hais:

• Coj coding tswvyim thiab QPSK tes taws los piav thiab 16 QAM.
• Tshwj Xeeb relay raws tu qauv.
• Nruam qhia kom paub ua ntej cov tsheb nyob rau hauv cov ntawm no B siv cov raws tu qauv MAC-high ceev.

Qhov no technology translates advanced multimedia cov kev pab rau ib tug tag nrho theem tshiab, uas cov neeg rau npe siv cov sai npaum li cas kev twb kev txuas. Qhov no yog vim lub fact tias, ua tsaug rau lub siab qhov tseem ceeb ntawm xa ntaub ntawv tus nqi, muab scanty ncua, tab sis qhov no tsub kom qhov ntim ntawm cov ntaub ntawv xa mus.

Yuav ua li cas yog nws siv?

Hauj lwm thiab cov lus qhia HSDPA qhia lub hom phiaj tseem ceeb ntawm lub network - yog los xyuas kom meej lub siab tshaj plaws kev siv hauv xov tooj cua spectrum nyob rau hauv cov kev pab cuam ntawm ntau yam kev pab, uas muab ntxiv rau qhov yuav tsum tau rau ib tug tsis tshua muaj high cov ntaub ntawv hloov lwm lub tsev tus nqi ntawm cov neeg siv tshaj downlink raws, xws li internet, raws li zoo li upload ntaub ntawv.

Lub network twb xub qhia rau thawj lub sij hawm cov neeg siv nyob rau hauv lub 3GPP standard, lub thib tsib version. Raws, muaj lub normalized cell ntau thiab tsawg pab thaum uas siv cov technology nws yog ua tau los muab ib tug nqi ntawm txog 10 Mbit / s. Tsis tshua muaj neeg siab ceev nqi nyob rau hauv xws thaj tsam yog 14,4 Mbit / s, tiam sis ua tau ua tau qhov no ceev yog yuav luag tsis yooj yim sua.

Tom ntej txoj kev loj hlob ntawm 3GPP qauv ncaj qha mus rau kom cov kev ceev tsis pub tshaj, uas nws yuav tau mus xav hais tias thaum lub sij hawm nws yuav pib mus txog 20-30 Mbit / s. Yuav kom pab tau raws li cov qhov tseem ceeb ntawm tshaj tawm yuav tsum MIMO feature, raws li zoo raws li txoj kev tshiab ntawm kev siv kav hlau txais xov arrays.

Kuv yuav tsum tau siv nws?

Tam sim no nyob rau hauv ib cov tswv yim theem pom tau hais ceev txog li 42 Mbit / s, thiab nyob rau hauv kev tshawb xav, thaum nws yuav tsum tau cai lub 11 tso tawm ntawm lub 3GPP txheem, tus ceev yuav twb yuav kwv yees li 337 Mbit / s. Rau hnub tim, yeej ib txwm nyob rau hauv UMTS HSDPA 3 G network, tab sis, cov kev ceev tseem yoojyim npaum li cas yuav tsum tau xav, txawm hais tias rau mobile pab kiag li lawm nws yog ntau tshaj tau.

Vim ib tug zoo cov ntaub ntawv hloov lwm lub tsev tus nqi, high quality tas mus li kev twb kev txuas thiab zoo uninterrupted lag luam los ntawm hom ntawv no yuav kiag li hloov cov sawv cev ntawm txawv neeg siv gadget uas yog ib tug thib peb tiam compound. Nyob rau tib lub sij hawm ib co tswv feem ntau pom HSDPA yuam shutdown, uas yuav ua tau heev tsis kaj siab.

WCDMA los yog HSDPA?

Capacious yuav txo tau 3G muaj xws li ib tug loj tus naj npawb ntawm technologies ua ke ua ke nyob rau hauv lub npe ntawm "peb tiam compound." Nyob rau hauv kev, feem ntau nyob deb yog lub WCDMA thiab HSDPA, uas nkaum nyob rau hauv ib tug ntau yam ntawm kev sib txuas lus yees, hais txog yeej tseem zoo rau peb tiam, tab sis yog sib txawv kiag li.

Yog hais tias peb xav txog thiab muab piv rau cov technologies, cov HSDPA yog ntau tshaj, thiab nws yuav tsis tsimnyog, vim nws twb tsim dog dig tom qab piv rau WCDMA thiab tso cai rau rau ib tug ntau dua kev ceev kev twb kev txuas. Yog li, yog hais tias tus tseeb technology muab cov kev ceev ntawm tsis muaj ntau tshaj li 3.6 Mbps, lub HSDPA nyob rau hauv qhov kev tshawb xav thiab nws tag nrho cov muaj peev xwm yuav mus txog txog 42 Mbit / s, txawm hais tias nyob rau hauv kev xyaum xws qhov tseem ceeb yog, ntawm chav kawm, nyob deb deb ntawm tus ua xws li. Nws yuav tsum tau muab sau tseg tias kev twb kev txuas ntawm hom ntawv no tej zaum yuav raug xa mus rau ib tsab HSPA, sawv cev rau union ntawm ob hom - HSUPA thiab HSDPA. Yuav ua li cas yog HSUPA thiab HSDPA, nyob rau hauv no version? Qhov no simultaneous acceleration ntawm ntsaws thiab khoom sib txuas.

Uas yog zoo dua?

Nyob rau hauv kev xyaum, tsis yooj yim rau xaiv li cas yog tseem zoo dua, thiab hais tias koj yuav pov npav rau lub WCDMA, HSDPA internet rau hais tias, nyob ntawm seb qhov teeb meem no thiab xav tau kev pab. Cov kev xaiv ntawm xws tes hauj lwm feem ntau ua rau lub tswv ib tus 3G-modem txhawb cia li ob lub tswv yim, raws li zoo li kev cob cog rua rau nws teb xov tooj. Hauv paus thiaj xws li tus neeg muaj peev xwm vim txawv stability los yog txheej meej txog xub ntiag. Nws yuav tsum tau muab sau tseg hais tias tej zaum muaj cov neeg lub sijhawm uas cov tib chav tsev muaj peev xwm yuav siv tau los ntawm tag nrho ob qho kev sib txuas lus standard, thaum nyob rau hauv lub lwm chav tsev yog siv WCDMA. Nws yuav tsum raug hais tias lub heev switching yuav ua tau ib qho tseem ceeb nyob rau hauv cov kev tshwm sim hais tias koj yuav tsum tau ib tug tas mus kev twb kev txuas, thiab nws yuav tsum tau suav hais tias.