Ua li cas 5G Ua Haujlwm thiab Vim Li Cas Nws Thiaj Ua Tau 25G?
Txhawm rau kom ua tiav cov kev xav tau rau ntau cov bandwidth, nrawm nrawm dua, thiab qis dua latency, 5G network architecture tau dhau los hloov pauv ntau, feem ntau hauv kev sib cais ntawm BBU (puag band ua chav tsev) kev ua haujlwm ntawm 4G. Feem ntau, 5G wireless nkag tau network architecture yog qhov nyuaj tshaj li ntawm 4G. 4G txuas network yog mas tsim ntawm peb ntu: EPC (core network), BBU, thiab RRU (xov tooj cua tej thaj chaw deb). Hauv 5G network architecture, nws faib cov thawj 4G BBU rau hauv CU (chav nruab nrab) thiab DU (faib chav), siab coj kom zoo ntawm huab thiab kev tswj hwm hauv nruab nrab ntawm cov chaw xaib.
Hauv kev xa hluav taws xob pem hauv ntej ntawm 5G network, nws yuav mus txog kwv yees li 100M ~ 1G bandwidth ceev nrog peaks ntawm 20G. Lub kav hlau txais xov tej zaum yuav yog 64 lossis 128, thiab cov granularity ntawm 5G pem hauv ntej-log network yog 25Gbps. Thiaj li, 25G optical transceivers yuav ua txoj haujlwm loj hauv kev tsim kho 5G network. 5G nruab nrab-kis tau tus mob feem ntau yuav siv N x 25G thev naus laus zis thiab DWDM Nplhaib network infrastructure hla kev sib kis ntawm 10 txog 40km, uas txhais tau tias 100G optical transceivers yuav sawv cev tseem ceeb hauv 5G nruab nrab-kis tau tus mob. Hauv kev xa rov qab-kis, yog tias kho qhov muag thauj network xa mus los nqa cov cim, N x 100G thev naus laus zis yuav raug saws. Yog tias tsis yog, 200G / 400G optical transceivers yuav tsum. Tsis hais hom twg ntawm network yuav ua lub luag haujlwm, 5G kis rov qab lub zog yuav kis tau los ntawm 100G optical modules lossis txawm tias modules nrog lub nrawm dua.
25G Optics Kev Lag Luam Ua Lag Luam Ua Haujlwm
Hauv lub xyoo 2017, qhov thov rau 25G optical transceivers tau nce ntau dua li cov wireless ua lag luam pem hauv ntej loj tau nthuav dav tsis tau tas li. Hauv xyoo 2019, 25G thiab 100G optical transceivers tau npaj rau cov kev siv hluav taws xob tshiab kom ceev nrog ceev ntawm 5G kev pabcuam kev lag luam thiab kev siv. Txoj cai ntawm lub sijhawm, qhov kev thov rau 25G optical modules yuav tsum mus txog ib lab thaum 40G optical module lag luam yuav maj mam poob. Hauv xyoo 2021, cov tuam txhab nqa khoom yuav ua haujlwm sib zog ua haujlwm los npaj cov txheej txheem thiab tshuab los txhawb nqa kev hloov mus rau 5G, thiab qhov kev thov rau 25G optical module tau xav kom mus txog ob lab tom qab ntawd. Nyob rau hauv lub neej yav tom ntej, cov chaw zov me nyuam cov ntaub ntawv, wireless sib txuas, kev sib koom tes sib txuas thiab xa xov xwm sib txuas lus yuav tsim kev sib koom tes rau 25G optical transceivers, nce mus rau qhov tawg ntawm cov kev xav tshiab. Txawm li cas los xij, 10G optical transceiver kev ua lag luam tau pom kev hloov pauv nrog cov neeg siv khoom xav tau poob nrawm.
