Tus neeg teb xov tooj lub wireless network, bearer network, thiab nkag network yog tag nrho cov tsim ntawm nodes thiab optical cables. Lub layout ntawm nodes thiab pipelines yog "pab network architecture".
Koj tuaj yeem xav txog tias cov nodes yog cov pob txha, optical cables thiab pipelines yog cov hlab ntsha, thiab ntau yam tes hauj lwm yog tawv. Lub hauv paus network architecture yog inconspicuous nyob rau hauv lub neej txhua hnub, tab sis nws yog tiag tiag lub neej ntawm cov neeg ua hauj lwm.
Saib rov qab mus rau yav dhau los, qhov tseeb, ntau cov thev naus laus zis ntawm cov neeg ua haujlwm tau nrov hauv kev lag luam. Hnub no kuv yuav qhia rau koj txog cov neeg ua haujlwm thev naus laus zis uas peb tau nrhiav ua ke hauv xyoo ntawd.
Thaum Lub Plaub Hlis 23, 2010, Tuam Tshoj Kev Sib Txuas Lus Sib Txuas Lus Tshawb Fawb Lub Tsev Haujlwm tau tshaj tawm qhov tshiab wireless nkag network architecture C-RAN rau ntsuab evolution.
C-RAN yog ntsuab wireless nkag tau network architecture raws li centralized ua, kev koom tes hauv xov tooj cua thiab real-time huab xam architecture, thiab lub network qauv evolution ntawm 2G mus rau C-RAN.
Nws cov ntsiab lus yog kom ua tiav tus nqi qis, siab bandwidth thiab hloov pauv tau los ntawm kev txo tus naj npawb ntawm cov khoom siv hauv chaw nres tsheb, txo kev siv hluav taws xob, siv cov thev naus laus zis sib koom tes thiab virtualization, paub txog cov peev txheej sib koom thiab kev teem sijhawm, thiab txhim kho spectrum efficiency.
Lub hom phiaj tag nrho ntawm C-RAN yog los daws cov teeb meem ntau yam (kev siv hluav taws xob, kev tsim kho thiab kev ua haujlwm thiab cov nqi kho mob, cov peev txheej spectrum) coj mus rau cov neeg ua haujlwm los ntawm kev txhim kho sai ntawm mobile Internet, thiab nrhiav kev lag luam ruaj khov thiab cov txiaj ntsig kev loj hlob yav tom ntej.
Tus lwm thawj ntawm Tuam Tshoj Mobile Research Institute ib zaug tau hais tias Tuam Tshoj Mobile vam tias yuav koom nrog qhov kev ua tiav tshiab hauv kev sib txuas lus wireless, kev sib txuas lus thev naus laus zis, thiab IT thev naus laus zis hauv C-RAN, thiab siv txoj hauv kev zoo tshaj plaws los tsim lub network ntawm tus nqi qis.
Thaum lub Kaum Ib Hlis 2004, 3GPP tau tshaj tawm 3G system Long Term Evolution (LTE, Long Term Evolution) txoj haujlwm tshawb fawb ntawm Quebec lub rooj sib tham. Cov tswv lag luam thoob ntiaj teb thiab cov cuab yeej siv khoom lag luam tau pib tsim cov kev cai ua ntej rau LTE systems los ntawm kev sib tham thiab email.
Lub tswv yim ntawm TD-LTE tau muab tso rau hauv lub Plaub Hlis 2005. Thaum lub Kaum Ib Hlis 2007, lub rooj sib tham 3GPPRAN tau dhau qhov kev pom zoo ntawm LTE TDD fusion thav duab qauv ua ke kos npe los ntawm 27 tuam txhab, koom ua ke ob lub qauv ntawm LTE TDD.
Long Term Evolution yog lub ntsiab lus ntawm "Long Term Evolution".
Thaum lub koom haum 3GPP tus qauv tsim thawj zaug tsim tus qauv LTE, nws tau muab tso rau hauv kev hloov pauv thiab hloov kho ntawm 3G thev naus laus zis.
Tom qab ntawd, kev txhim kho ntawm LTE thev naus laus zis tau dhau qhov kev cia siab, thiab cov kev hloov pauv tom ntej ntawm LTE, Tso Tawm 10/11 (xws li LTE-A), tau txiav txim siab raws li 4G tus qauv.
TD-LTE core thev naus laus zis suav nrog lub network tiaj tus, cuam tshuam kev cuam tshuam tshuab ICIC, zaus faib ntau qhov system thiab MIMO thev naus laus zis.
Nws tuaj yeem hais tias TD-LTE yog lub hauv paus tseem ceeb ntawm tus qauv 4G thoob ntiaj teb. Kev loj hlob ntawm TD-LTE thev naus laus zis thiab kev tsim cov saw hlau muaj kev sib raug zoo nrog kev txhim kho ntawm Tuam Tshoj txoj kev lag luam kev sib txuas lus.
HSPA yog ib qho kev txhim kho thev naus laus zis ntawm HSPA. HSPA thev naus laus zis tau teev tseg hauv 3GPP suav nrog 64QAM kev txiav txim siab hloov kho, MIMODC, DB thiab lwm yam thev naus laus zis. Tam sim no nws tau muab faib ua plaub theem.
Xyoo 2008, Qualcomm, ib lub tuam txhab Asmeskas kev sib koom ua ke tsim hluav taws xob, tshaj tawm ua tiav lub ntiaj teb thawj zaug siv cov ntaub ntawv no hu xov tooj.
Cov thev naus laus zis no tuaj yeem muab cov ntaub ntawv xa tawm ntau dua 20Mbps ntawm cov channel nrog bandwidth ntawm 5MHz.
Feem ntau hais lus, HSPA ntxiv muaj qhov nrawm dua, kev ua tau zoo dua, kev siv tshuab siab dua, thiab kev sib txuas ruaj khov dua. Nws yog lub network ceev tshaj plaws ua ntej daim ntawv thov ntawm LTE thev naus laus zis.
HSPA txhim kho kev siv network thiab kev ua tau zoo hauv ntau txoj hauv kev: ib qho yog txhawm rau ua kom muaj peev xwm hauv lub network, lwm qhov yog txhawm rau nce tus nqi siab tshaj ntawm lub kaw lus, thiab qhov thib peb yog txo tus nqi ntawm cov ntaub ntawv xa mus rau ib ntsis.
Ntawm lub rooj sib tham plenary uas muaj nyob rau lub Kaum Ob Hlis 2010, 3GPP tau txiav txim siab suav nrog kev txhim kho loj rau HSPA raws li muaj cov qauv tshiab hauv Kev Tshaj Tawm 11 lossis tom qab ntawd.
Ua ntej LTE muaj kev paub tab thiab muaj kev lag luam, HSPA tuaj yeem ntxiv tau LTE-zoo li kev ua tau zoo ntawm cov peev txheej uas twb muaj lawm ntawm tus nqi qis, tiv thaiv cov neeg ua haujlwm kev nqis peev, thiab xav txog kev hloov kho tsis sib haum, ntau thiab ntau tus tswv pib pib ua HSPA xeem ntxiv. xeem.
04 active kav hlau txais xov
Active antennas yog cov kav hlau txais xov nrog cov khoom siv. Nws muaj cov yam ntxwv ntawm qhov me me, kev siv hluav taws xob tsawg, kev txhim kho yooj yim thiab muaj zog tiv thaiv. Active antennas yog lub hauv paus ntsiab lus ntawm kev hloov kho network architecture, kev paub yooj yim ntawm cov kav hlau txais xov thiab qhia txog 40 ntxiv rau cov kav hlau txais xov.
Tom qab nkag mus rau xyoo 2011, suav nrog kev tshaj tawm Alcatel-Lucent's LightRadio daws teeb meem, Ericsson's Air solution, thiab Nokia Siemens Networks 'FlexiRace solution, cov kav hlau txais xov muaj kev loj hlob sai. Tom qab ntawd, ntau yam khoom siv hluav taws xob tseem ceeb tau tsim cov khoom siv kav hlau txais xov ib tom qab.
AIR muaj qhov zoo hauv kev txo hwj chim noj thiab ua kom yooj yim installation. lightRadio embodies tus qauv ntawm miniaturization thiab kev faib tawm ntawm lub hauv paus chaw nres tsheb.
Unified RAN pib los ntawm software xov tooj cua technology. Unified RAN tau hloov pauv tag nrho cov qauv siv niaj hnub siv hauv network uas "peb pawg khoom siv" thiab "peb lub network" ntawm GSM, UMT, thiab SLTE yog superimposed thiab deployed, thiab tuaj yeem pab cov tswv lag luam txuag kev nqis peev rau qhov loj tshaj thaum lub sijhawm hloov kho network. txheej txheem.
Txij li xyoo 2008, txhua tus neeg muag khoom tseem ceeb tau tsim cov khoom RAN sib koom ua ke, suav nrog Huawei's SingleRAN, ZTE's Uni-RAN, Ericsson's EvoRAN, Nuo Siemens 'SingleRAN thiab lwm yam.
Tam sim no, cov neeg muag khoom siv khoom siv feem ntau tau siv "kev koom ua ke RAN" cov chaw nres tsheb hauv kev tsim tshiab thiab nthuav dav.
Tam sim no, cov neeg ua haujlwm yuav tsum txhim kho cov nqi kev ua tau zoo ntawm lub network, txo cov kev sib txuas hauv network, thiab txo tus nqi ntawm cov kev pabcuam me ntsis. Yog li ntawd, tus nqi nkag siab dua, lub peev xwm loj dua hauv lub network thiab kev siv ntau dua yuav tsum tau muab rau tus nqi qis dua.
Tus neeg teb xov tooj lub network tsis tuaj yeem hloov kho mus rau LTE theem thaum hmo ntuj, thiab 2G / 3G / LTE network yuav nyob ua ke rau lub sijhawm ntev thiab txhua tus ua nws txoj haujlwm. Tom qab xyoo ntawm kev txhim kho thiab kev ua kom zoo, GSM network uas twb muaj lawm tuaj yeem muab cov kev pabcuam zoo tshaj plaws, los ntawm cov chaw nyob deb nroog mus rau nroog, sab hauv tsev thiab sab nraum zoov.
GSM network muab cov neeg siv nrog lub suab yooj yim tshaj plaws thiab kev pabcuam SMS; Hauv cov nroog loj thiab cov chaw kub, LTE network tuaj yeem muab cov neeg siv cov ntaub ntawv ceev ceev.
Los ntawm SDR lub hauv paus chaw nres tsheb kom paub txog 2G / 3G kev sib txuas lus sib txuas, software hloov kho tshiab los txhawb HSPA ntxiv thiab kev hloov pauv mus rau LTE, cov neeg ua haujlwm tsis txhob rov tsim kho dua thiab kev nqis peev siab los ntawm kev hloov kho network.
Cov tiam tshiab ntawm cov chaw muag khoom muag uas sawv cev los ntawm SDR tau dhau los ua qhov chaw nres tsheb ntawm kev xaiv rau cov neeg siv xov tooj thoob ntiaj teb.
Unified RAN tuaj yeem ua kom muaj txiaj ntsig zoo tshaj plaws ntawm cov neeg ua haujlwm cov cuab yeej tseem ceeb xws li chaw, spectrum, kav dej, cov neeg siv, thiab cov neeg ua haujlwm. "
06 yas optical fiber ntau
Kev tshawb fawb ntawm cov yas kho qhov muag tau pib hauv xyoo 1960, thaum siv kev tshawb fawb hauv kev sib txuas lus pib hauv 2000.
Ntawm lub rooj sib tham OFC xyoo 2000, Asahi iav ntawm Nyij Pooj tau hais tias cov yas kho qhov muag tuaj yeem ua tau raws li cov ntawv thov kev sib txuas lus luv luv.
kuv lub teb chaws pib muab cov yas kho qhov muag fiber ntau rau hauv kev lag luam thaum ntxov xyoo 1990, feem ntau yog rau kev tsim khoom siv tes ua thiab lwm yam. Xyoo 2006, Ministry of Industry thiab Information Technology tau tshaj tawm cov qauv kev lag luam rau cov khoom siv kho qhov muag fiber ntau rau kev sib txuas lus, uas tau qhib ib theem tshiab rau cov khoom siv fiber ntau.
Tom qab Zhejiang Falcomms tau txais lub tuam txhab Irish Firecomms, kuv lub teb chaws tau dhau los ua thawj lub teb chaws hauv ntiaj teb kom muaj cov khoom lag luam fiber ntau kho qhov muag. Nyob rau tib lub sijhawm, Zhongke Haitong tuaj yeem muab cov khoom siv kho qhov muag fiber ntau thiab cov txheej txheem tsim khoom, rhuav tshem cov kev lag luam thoob ntiaj teb.
Daim ntawv thov ntawm cov yas kho qhov muag fiber ntau hauv FTTH thiab daim phiaj ntse kuj tau lees paub dav dav, thiab cov khoom siv kho qhov muag yas tau nkag mus rau hauv daim ntawv thov thiab lub sijhawm txhawb nqa.
Tsim nyog kev siv peev thiab kev txhim kho kev lag luam ntawm cov saw hlau yog cov yuam sij los txhawb txoj kev loj hlob ntawm kev lag luam yas kho qhov muag fiber ntau.
Thaum lub Cuaj Hlis 2005, Lucent tau nthuav tawm 100G thev naus laus zis thawj zaug ntawm Bell Labs, paub txog kev ua haujlwm ntawm 100G kis tau tus mob hauv Ethernet, thiab 100G optical module qauv thiab raws tu qauv.
Tom qab ntawd, Nortel tuaj tom qab. Xyoo 2009, nws tau tsim lub ntiaj teb thawj 100G kev lag luam, thiab tshaj tawm kev xa ncaj qha ntawm thawj kev lag luam 100G network nrog Verizon hauv Paris thiab Frankfurt. Thaum Lub Kaum Hli 2011, Shanghai Tswb tau xa tawm lub teb chaws thawj kev lag luam 100G network rau qee tus neeg ua haujlwm hauv kuv lub tebchaws.
Qhov kev loj hlob txhua xyoo ntawm kuv lub teb chaws lub cev lub cev kev sib txuas yog siab li 60 feem pua, thiab 40GWDM system tau siv los ua kom muaj peev xwm tau ob xyoos. Nws tau nyuaj ua kom tau raws li qhov xav tau ntawm kev txhim kho network. Qhov kev thov rau 100G tau dhau los ua qhov tseem ceeb hauv xyoo 2012. Tuam Tshoj Telecom tau tshaj tawm 100G kev kuaj sim los npaj rau cov ntawv thov loj.
Kev lag luam yuav ntsib kev sib koom ua ke ntawm 10/40/100Gbps rau lub sijhawm ntev, thiab kev sib koom ua ke ntawm peb qhov yuav tsum tau ua kom tiav.
IPRAN yog qhov kev daws teeb meem tseem ceeb tam sim no hauv kev ua haujlwm ntawm mobile bearer network. Nws yog raws li lub tswv yim tsim ntawm kev sib txuas lus IP hloov tau, raws li cov qauv router niaj hnub, thiab txhim kho OAM mechanism, kev pabcuam kev tiv thaiv mechanism thiab pob ntawv moos kis tau tus mob. Nws raug nquahu kom siv lub dav hlau dynamic tswj rau kev pabcuam xa mus. Tsis siv neeg routing mechanism.
Cov txheej txheem kho vajtse raws li router architecture muaj kev nplua nuj peb txheej routing muaj peev xwm thiab kev txhawb nqa zoo dua Tuam Tshoj Telecom tau npaj rau xyoo 2009 los tsim kom muaj kev pabcuam puv ntoob-chav kawm Ethernet network pib los ntawm IPRAN bearer network. Zhenjiang, Suzhou, Shenzhen thiab lwm lub nroog tau ua haujlwm ua haujlwm ntawm IPRAN tus neeg nqa khoom network thiab ua tiav cov txiaj ntsig zoo.
Rau cov neeg ua haujlwm pabcuam puv ntoob, xaiv IPRAN raws li lawv cov cuab yeej siv xov tooj ntawm tes yog qhov kev xaiv zoo tshaj plaws ntawm kev lag luam saw loj thiab kev sib koom ua ke yav tom ntej.
Pom zoo cov ntaub ntawv chaw network, nraub qaum network, kis tau tus mob, nkag mus rau lub network interconnection platform.
HT6000 DWDM OTN platform, txhawb OTM, OADM, OLP, OXC 10G, 100G, 200G, 400G muaj peev xwm ua lag luam.
Yog xav paub ntxiv txog kev sab laj, pls nyem qhov txuas daim duab yuav ncaj qha txuas nrog kuv tus account whatsapp, ua tsaug ntau.
