Kodi base station ndi chiyani
M'zaka zaposachedwa, nkhani ngati izi zakhala zikuwonekera nthawi ndi nthawi:
Eni nyumba adatsutsa kumangidwa kwa masiteshoni ndikudula zingwe zowonekera mwamseri, ndipo oyendetsa atatuwo adagwira ntchito limodzi kugwetsa masiteshoni onse oyambira pakiyo.
Ngakhale kwa anthu wamba, masiku ano, intaneti yam'manja ikalowa m'mbali zonse za moyo, amakhala ndi nzeru zodziwika bwino: ma foni am'manja amatulutsidwa ndi masiteshoni oyambira.Ndiye base station ikuwoneka bwanji?
Makina athunthu a station station amapangidwa ndi BBU, RRU ndi antenna feeder system (mlongoti).
Pakati pawo, BBU (Base band Unite, baseband processing unit) ndiye zida zoyambira kwambiri pamalo oyambira.Nthawi zambiri imayikidwa m'chipinda chobisika cha makompyuta ndipo sichingawonekere kwa anthu wamba.BBU ili ndi udindo wokonza ma signature ndi data ya network network ndi ogwiritsa ntchito.Ma protocol ndi ma aligorivimu ovuta kwambiri pamalumikizidwe am'manja onse amakwaniritsidwa mu BBU.Zitha kunenedwa kuti malo oyambira ndi BBU.
Kuchokera pamawonekedwe, BBU ndi yofanana kwambiri ndi bokosi lalikulu la makompyuta apakompyuta, koma kwenikweni, BBU ndi yofanana ndi seva yodzipatulira (m'malo mogwiritsa ntchito makompyuta ambiri).Ntchito zake zazikulu zimazindikiridwa ndi mitundu iwiri.Ma board key amazindikiridwa ndi board yayikulu yowongolera ndi board ya baseband.
Chithunzi pamwambapa ndi chimango cha BBU.Zitha kuwoneka bwino kuti pali mipata 8 yofanana ndi ma drawer mu chimango cha BBU, ndipo bolodi lalikulu lowongolera ndi bolodi la baseband litha kuyikidwa mumipata iyi, ndi chimango cha BBU Ma board angapo owongolera ndi ma board a baseband ayenera kuyikidwa, makamaka. kutengera mphamvu zofunikira za siteshoni yoyambira kuti itsegulidwe.Ma board ochulukirapo akamayikidwa, mphamvu ya malo oyambira imakhala, ndipo ogwiritsa ntchito ambiri amatha kutumikiridwa nthawi imodzi.
Gulu lalikulu loyang'anira limayang'anira kukonza ma siginecha (RRC signing) kuchokera pa netiweki yayikulu ndi foni yam'manja ya wogwiritsa ntchito, imayang'anira kulumikizana ndi kulumikizana ndi netiweki yapakati, ndipo ili ndi udindo wolandila zidziwitso zamalumikizidwe a GPS ndikuyika zambiri.
RRU (Remote Radio Unit) idayikidwa poyambirira mu chimango cha BBU.Poyamba inkatchedwa RFU (Radio Frequency Unit).Amagwiritsidwa ntchito kutembenuza siginecha ya baseband yomwe imatumizidwa kuchokera ku board ya baseband kudzera pa fiber optical kupita ku frequency band yomwe woyendetsayo ali nayo.Chizindikiro chokwera kwambiri chimatumizidwa ku mlongoti kudzera mu feeder.Pambuyo pake, chifukwa kutayika kwa kufalikira kwa feeder kunapezeka kuti kunali kwakukulu kwambiri, ngati RFU imayikidwa mu chimango cha BBU ndikuyika mu chipinda cha makina, ndipo mlongoti umapachikidwa pa nsanja yakutali, mtunda wotumizira wodyetsa ndi kutali kwambiri ndi kutayika. ndi yayikulu kwambiri, ingotulutsani RFU.Gwiritsani ntchito ulusi wa kuwala (kutayika kwa kuwala kwa fiber ndi kochepa) kuti mupachike pansanja pamodzi ndi mlongoti, kotero imakhala RRU, yomwe ili kutali ndi wailesi.
Potsirizira pake, mlongoti umene aliyense amawona nthawi zambiri m'misewu ndi m'misewu ya mzindawo ndi mlongoti womwe umatumiza chizindikiro chopanda zingwe.Magawo odziyimira pawokha odziyimira pawokha a LTE kapena 5G antenna, mitsinje yambiri yomwe imatha kutumizidwa. nthawi yomweyo, komanso kuchuluka kwa kufalikira kwa data.
Kwa ma antennas a 4G, mpaka 8 ma transceiver odziyimira pawokha amatha kuzindikirika, kotero pali 8 zolumikizira pakati pa RRU ndi mlongoti.Mawonekedwe a 8 pansi pa 8-channel RRU amatha kuwoneka bwino pachithunzi pamwambapa, pomwe chithunzi chili pansipa chikuwonetsa Ndi mlongoti wa 8 wokhala ndi mawonekedwe a 8.
Mawonekedwe a 8 pa RRU amafunika kulumikizidwa ndi ma 8 pa mlongoti kudzera pa ma feeder 8, kotero kuti chingwe cha mawaya akuda chimatha kuwoneka pamtengo wa antenna.
Nthawi yotumiza: Apr-01-2021