Optical fiber ntau cov khoom sivQhov tseem ceeb SES 8 ~ 16 wavelength ntawm ntxhib wavelength division los ua WDM, thiab tuaj yeem ua ke sib txawv wavelength optical signals rau hauv lub teeb ntawm lub teeb, uas tuaj yeem decomposed ntawm qhov kawg tau txais, kom paub txog ib leeg-fiber multi wavelength division. Cov khoom siv fiber ntau tshiab feem ntau suav nrog 1: 6 polymerizations, 1: 8 polymerization, 1: 12 polymerization thiab 1: 18 polymerization. Lub wavelength nyob ntawm 1271nm mus rau 1611nm, thiab tus naj npawb ntawm cov channel uas tuaj yeem ua ke los yog sib cais yog 6, 8, 12 thiab 18, feem. Qhov siab tshaj plaws kis tau tus mob yog mus txog 80Gbit / s, txhawb ntau yam network bands nrog rau 2G, 3G, 4G thiab 5G. Piv nrog rau WDM cov cuab yeej qub, hom tshiab ntawm cov khoom siv fiber ntau optical fiber ntau no yog kev siv tshuab ntau dua thiab ua kom zoo dua qub hauv cov tsos, zoo thiab daim ntawv, thiab lwm yam. Nws tuaj yeem siv rau hauv txhua hom kev siv network, kom nws tuaj yeem siv tau. nyob rau hauv ntau txoj kev thiab raws sij hawm alleviate lub shortage ntawm fiber core coj los ntawm loj-scale chaw nres tsheb tsim.
Nyob rau hauv 4G network puag chaw nres tsheb txoj kev tsim kho, cov neeg ua haujlwm ntawm lub hauv paus chaw nres tsheb raws li qhov chaw ntawm lub cev thiab sawv ntsug hom loj, nrog rau kev faib tawm, peb siv qhov chaw nres tsheb macro ua piv txwv los piav qhia txog kev tsim kho lub tswv yim.optical multiplexing khoomUa ntej ntawm tag nrho cov, peb txhais cov baseband ua units hu ua BBU, xov tooj cua zaus ua chav tsev RRU luv luv, nruab nrab ntawm lub BBU thiab RRU los ntawm lub teeb module, kho qhov muag teeb liab ntawm lub kav hlau txais xov thiab RRU kev twb kev txuas los ntawm lub feeder thiab lwm yam., amplify lub teeb liab daim ntawv. peb sectors, thiaj li ua kom tau txais kev pab them nqi, yog li ntawd, nyob rau hauv tsab xov xwm no peb yuav tsim ib tug peb RRU suav hais tias yog ib tug txheej ntawm lub hauv paus chaw nres tsheb, thiab yog txhais raws li lub teeb kev taw qhia.
Siv 1: 6 aggregation rov qab ntaus ntawv yog tsim los ntawm ob fiber expander, network kev tsim kho lub tswv yim twb tau teev nyob rau hauv cov kev taw qhia ntawm txhua lub teeb nyob rau hauv kev siv ntawm ib tug txheej ntawm, nthuav dav thiab ua tiav fiber core cov kev pab cuam, cov tswv yim tshwj xeeb yog muab tso rau hauv fiber ntau. expander nyob rau hauv proximal lateral BBU, rau kev nkag tau mus rau qhov sib thooj peb RRU, xaiv peb hauv BBU lub qhov ncauj lub qhov ncauj, feem siv lub wavelength ntawm 1271 nm, 1311 nm thiab 1351 nm ntawm 10Gbit / s muaj yeeb yuj lub teeb module los txuas. Lub sijhawm no, kev pabcuam ntawm peb qhov chaw nres nkoj kho qhov muag converges ntawm ib leeg-core bidirectional optical fiber nyob rau hauv online los ntawmWDM technology, thiab xa los ntawm optical fiber mus rau optical kev sib tshuam lub thawv ntawm cov chaw taws teeb RRU. Txhawm rau txuas ntxiv kev sib kis ntawm cov teeb liab kho qhov muag mus rau RRU ntawm qhov kawg ntawm cov chaw taws teeb, lwm qhov kev kho qhov muag fiber ntau tau muab tso rau hauv lub thawv xa khoom kho qhov muag, thiab tom qab ntawd txuas nrog RRU dua los ntawm 10Gbit / s xim lub teeb modules ntawm 1291nm, 1331nm thiab 1371nm, feem, kom paub txog kev sib txuas lus kho qhov muag ntawm qhov sib thooj BBU thiab cov chaw taws teeb RRU, yog li ua tiav kev tsim kho network.
