Optical kis daws teeb meem ntawm 5G mobile network
Keeb kwm
Tus qauv thib tsib lub xov tooj txawb xov tooj sib txuas lus, tseem hu ua lub thib tsib tiam xov tooj ntawm tes kev sib txuas lus thev naus laus zis, lus Askiv luv: 5G.Raws li lub sijhawm teem los ntawm 3GPP, R14 tus qauv feem ntau ua cov kev tshawb fawb ntawm 5G system moj khaum thiab cov thev naus laus zis tseem ceeb; R15 ua tau raws li 5G thov nyob rau hauv qee qhov xwm txheej thiab pib cov txheej txheem kev lag luam; R16 yuav ua tag nrho cov qauv tsim.Cov qauv peb yuav tsum ua kom tiav hauv lub Peb Hlis 2017, Lub Rau Hli 2018 thiab Kaum Ob Hlis 2019, thiab qhov kawg ua tiav 5G tus qauv yuav raug xa mus rau International Telecommunication Union ( ITU) rau kev lag luam siv thaum ntxov 2020.
Raws li 3GPP txoj kev npaj, 5G cov qauv tau muab faib ua NSA thiab SA (Sandalone networking). Ntawm lawv, 5GNSA kev sib txuas lus yuav tsum muaj 4G hauv paus chaw nres tsheb thiab 4G core network, thiab 4G yog siv los ua qhov taw tes ntawm lub dav hlau tswj kom tau raws li cov neeg ua haujlwm radical ' cov kev xav tau ntawm kev siv cov peev txheej LTE network uas twb muaj lawm thiab paub txog kev xa tawm sai ntawm 5GNR (NewRatio).
Thaum Lub Rau Hli 14, 2018, 3GPP tau tuav lub rooj sib tham plenary hauv Tebchaws Meskas thiab tau tso cai ua kom khov ntawm 5th Generation mobile Communication Technology Standard (5GNR) Independent Networking (SA) function.The 5GNR non-independent networking (NSA). khov txij lub Kaum Ob Hlis xyoo tas los, yog li thawj theem ntawm kev ua haujlwm siab thiab ua tiav 5G tus qauv tau raug tso tawm, thiab 5G kev lag luam siv tau nkag mus rau tag nrho sprint theem.
Cov yam ntxwv tseem ceeb ntawm 5G network los muab cov kev pabcuam suav nrog cov bandwidth loj (qhov siab tshaj plaws ntawm cov neeg siv kev paub ntawm 1Gbps), qeeb qeeb (1ns) thiab kev sib txuas loj (kev sib txuas ceev ntawm 106 / km2), yog li muab cov kev xav tau tshiab rau cov neeg siv network hauv cov ntsiab lus ntawm bandwidth. , muaj peev xwm, ncua sij hawm thiab kev sib txuas yooj yim.Lub teeb liab ntawm 5G hauv paus chaw nres tsheb AAU txais kev sib kis digital, thiab huab cua cuam tshuam txais eCPRI raws tu qauv interface, nrog tus nqi raug ntawm 25.165824Gbps. Xav txog qhov xwm txheej ntawm kev sib koom ua ke nrog 4G, nws yuav tsum tau sib haum nrog CPRIoption10 ntawm tus nqi ntawm 24.33024Gbps.
5g xa. Raws li ib tug tswv cuab ntawm kev lag luam kev sib txuas lus kho qhov muag, ntawm no peb yuav tham txog cov khoom siv kho qhov muag uas yuav raug siv hauv 5G network. Lawv txhua tus ua tau raws li qhov xav tau ntau ntawm kaum lab lab ntawm cov qib.Optical kev sib txuas lus yog cov khoom tseem ceeb ntawm optical kis tau tus mob network, nqa cov txheej txheem tseem ceeb ntawm lub cev txheej txheem xws li photoelectric hloov dua siab tshiab, kho qhov muag wavelength multiplexing thiab demultiplexing, thiab optical fais fab faib.Piv nrog. 3G4G network tam sim no, qhov kev hloov pauv loj tshaj plaws ntawm 5G hauv lub wireless bearer network nyob hauv thaj tsam ntawm kev xa mus rau pem hauv ntej thiab nruab nrab. Kev xa mus rau pem hauv ntej yog kev sib txuas ntawm lub hauv paus chaw nres tsheb thiab DU (DistributeUnit, lub luag haujlwm rau kev tuav cov txheej txheem lub cev thiab kev pabcuam hauv lub sijhawm), thiab kev sib kis nruab nrab yog kev sib txuas ntawm DU thiab CU (CentralizedUnit, centralized unit, centralized. unit). tuav cov txheej txheem thiab cov kev pabcuam uas tsis yog lub sijhawm tiag tiag).
Lub hauv paus chaw nres tsheb wireless feem ntau yog ntsia rau ntawm kev sib txuas lus ntauwd lossis lub ru tsev ntawm lub tsev, uas yog nyob rau hauv lub hnub thiab cua, yog li cov khoom siv kho qhov muag siv rau kev xa mus rau pem hauv ntej yuav tsum tau ua kom tau raws li qhov chaw sab nraum zoov. Qhov tseem ceeb tshaj plaws yog qhov kev ua haujlwm kub ntawm cov khoom siv yuav tsum ua tau raws li cov kev xav tau ntawm kev lag luam, {{0}} degree ~ 85 degree .Los ntawm txoj kev, lwm qhov chaw sab hauv tsev feem ntau yog qhov yuav tsum tau ua lag luam qib kub, 0 ~ 70 degree.
Hauv qhov xwm txheej ua ntej, qhov kev sib kis feem ntau yuav tsum muaj tsawg dua 10kmLR, ntawm 80 feem pua tsawg dua 5km thiab 20 feem pua yog nyob nruab nrab ntawm 5 thiab 10km.Tau kawg, yuav muaj qhov sib txawv ntawm tus nqi theoretical thiab kev siv lub tswv yim. lub network nyob. Tej zaum yuav muaj teeb meem xws li nce attenuation ntawm optical fiber aging txuas thiab qhov tseem ceeb ntawm qhov kev pab cuam cheeb tsam. Yog li ntawd, qhov kev ncua deb ntawm kev sib kis saum toj no 10km, xws li 20kmER, tseem xav tau.Nyob rau hauv qhov nruab nrab kis scenario, qhov kis tau tus mob yuav tsum nyob nruab nrab ntawm 10 thiab 40km, thiab muaj ob qhov kev khiav hauj lwm kub uas yuav tsum tau muaj, industrial thiab coj mus muag.Tam sim no, ua. active manufacturers nyob rau hauv kev lag luam tau launched los yog launched ib tug series ntawm kho qhov muag module daws teeb meem rau pretransmission thiab intermediate kis daim ntaub ntawv, nrog rau pretransmission 25GLR / ER, 25GLR / ERBIDI, 25GCWDM / DWDMER, 25GSFP28TUNABLE, Nyob rau hauv lub kis ntawm 100GQSFP28FP4LR4/4 industrial optical module khoom.Peb kuj muab cov khoom lag luam passive xws li 5GOMUX, CCWDM, AAWG, thiab lwm yam.
Daim duab 1: Ceev thiab nrug ntawm 5g rau pem hauv ntej dhau
Optical module yog photoelectric hloov dua siab tshiab, qhov nruab nrab kis tau tus mob nruab nrab yog optical fiber, qhov loj tshaj plaws peev nyob rau hauv optical network yog ib txwm optical fiber ntau, yog li kev xaiv ntawm cov khoom siv thiab cov khoom siv yuav tsum xub xav txog cov khoom siv fiber ntau.Vim cov yam ntxwv ntawm txoj cai thiab cov pejxeem, optical fiber ntau muaj nyob rau hauv Tuam Tshoj lub nroog thiab feem ntau cheeb tsam, tab sis lawv muaj tsawg heev nyob rau hauv Tuam Tshoj nyob deb nroog thiab feem ntau cov cheeb tsam txawv teb chaws.Fiber muaj nuj nqis, yog li txuag nws nrog optical modules, yog li muaj peb txoj kev xaiv rau 5G pretransmission.
1.Scenarios qhov twg optical fibers muaj ntau
Nyob rau hauv qhov xwm txheej uas muaj ntau qhov chaw kho qhov muag, siv cov fibers kho qhov muag rau kev sib txuas ncaj qha, ib qho fiber ntau rau txhua qhov chaw, thiab 25GLR / ERBIDI rau kho qhov muag modules. Feem ntau, lub hauv paus chaw nres tsheb muaj peb ntu, yog li BIDI lub tswv yim tsuas yog xav tau peb qhov kho qhov muag fibers kom tau raws li qhov xav tau. kev khiav mus rau pem hauv ntej ntawm lub hauv paus chaw nres tsheb, thiab yog qhov tsim nyog rau siab precision moos synchronization.Txawm hais tias qhov nqes wavelength yog 1310nm lossis 1330nm tsis meej.OPTICO muaj ntau yam ntawm 25GLR / ER, 25GLR / ERBIDI, 25GCWDM / DWDMER, 25GSFP manufacturing cov txheej txheem thiab tus nqi siab tshaj plaws kom txuag tau cov neeg siv khoom fiber ntau thiab cov nqi xaim.
Daim duab 2: 5G rau pem hauv ntej optical fiber ntau txoj kev txuas ncaj qha
2.Cov xwm txheej uas cov khoom siv kho qhov muag tsis tshua muaj
Thaum cov khoom siv kho qhov muag tsis tshua muaj, WDM xav tau. Tag nrho cov kev pabcuam wavelengths ntawm Base chaw nres tsheb yog multiplexed rau hauv ib los yog ib khub ntawm optical fibers rau backtransmission kom txuag tau cov khoom siv fiber ntau los ntawm lub hauv paus chaw nres tsheb mus rau DU, uas yog hu ua OneFiberOneSite (ib fiber ntau optical rau ib lub hauv paus chaw nres tsheb). optical modules yuav tsum tau, uas yuav ua rau tsis yooj yim rau installation, spare qhov chaw, thiab txij nkawm. Tunable optical modules yog tsim los siv.Yog li ntawd, hauv qhov xwm txheej no, OPTICO tuaj yeem muab cov neeg siv khoom nrog 25GCWDM / DWDMLR / ER, 25GSFP28TUNABLELR / ER, lub wavelength tuaj yeem yog O band thiab C band, nrog rau cov khoom lag luam passive WDM 5GOMUX, CCWDM thiab lwm modules.
Tau kawg, txoj hauv kev zoo dua los rov qab rau lub network yog ua rau cov khoom siv yoj faib ncaj qha mus rau lub hauv paus chaw nres tsheb thiab DU, uas yog, lub tswv yim WDM, uas tuaj yeem sib haum nrog 2G / 3G / 4G cov kev pabcuam ntawm lub network nyob, thiab tuaj yeem paub ntau L3 txheej kev pabcuam kev tswj hwm thiab kev ua kom zoo dua qub, tau kawg, uas yuav nce CAPEX.
3.Qhov tsis txaus ntawm cov khoom siv hluav taws xob rov qab
Nyob rau hauv cov ntaub ntawv ntawm qhov tsis txaus ntawm cov pob txha rov qab fiber ntau, kev khiav tsheb los ntawm ntau lub hauv paus chaw nres tsheb yuav tsum muab sib sau ua ke rau hauv ib qho DU rau kev rov qab, uas yog hu ua OneFiberNSites (chaw nres tsheb hauv paus) (ib lub pob txha fiber ntau rau N hauv paus chaw nres tsheb). Qhov no yog ib qho point-to-multipoint passive WDM scheme.Piv txwv li, feem ntau siv AAWG40 wavelength tuaj yeem npog 6 lub hauv paus chaw nres tsheb (txhua lub hauv paus chaw nres tsheb muaj 3 ntu, tag nrho ntawm 18 AAU, 20 nthwv dej / 20 nthwv dej hauv qab). cov qauv ua raws li PON raws li qhov muag pom kev network thiab ua kom zoo dua qub thiab tam sim no network ODN network.
Tam sim no, tsuas muaj cov lag luam loj hlob qib AWGs hauv kev lag luam, nrog rau kev ua haujlwm kub ntawm 0 degree ~ 75 degree . Nyob rau yav tom ntej WDM-PON network thiab 5G pretransmission daws teeb meem, AWG kev khiav hauj lwm qhov kub thiab txias yuav tsum tau nce ntxiv mus rau qib kev lag luam -40 degree ~ 85 degree, uas tso rau pem hauv ntej cov kev cai nruj dua rau cov ntim kub thiab tsis kub, thiab ntxiv qhov yuav tsum tau ua rau chip-theem tsis-kub AWGs.Tseem xav tau kev lag luam cov npoj yaig ua haujlwm kom tawg.Yog tias muaj AWG tseem tsis paub qab hau thiab qhov chaw teeb tsa tsis haum rau kev ua lag luam kub, PLCsplitter tuaj yeem txiav txim siab. thaum qhov txuas kho qhov muag fais fab pob nyiaj tuaj yeem ua tau raws li qhov yuav tsum tau ua. Splitter cov khoom tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm kev ua haujlwm kub ntawm tam sim no.
Hauv qhov xwm txheej P2MP, optical modules 25G CWDM / DWDM LR / ER, 25G SFP28 TUNABLE LR / ER feem ntau yog siv. Lub wavelength tuaj yeem yog O band thiab C band, thiab cov khoom lag luam passive WDM 5G OMUX, CCWDM, thiab lwm yam.AWG los yog PLC Splitter.OPTICO yog qhov loj tshaj plaws PLC Splitter / FBT Coupler chaw tsim tshuaj paus nyob rau hauv Shenzhen, muab ib tug tag nrho thiab ntau yam ntawm customized PLC. Splitter / FBT Coupler / WDM Devices.
Daim duab 4: 5 G forward point-to-multipoint passive WDM scheme
Xaus
5G yog lub hauv paus tseem ceeb hauv keeb kwm ntawm kev sib txuas lus. Kev ua lag luam yog qhov loj thiab nyuaj, thiab OPTICO yuav txuas ntxiv muab cov neeg siv khoom nrog kev tsim tshiab thiab kev daws teeb meem rau kev sib txuas ntawm qhov muag.