Chii chinonzi base station
Mumakore achangopfuura, nhau dzakadai dzagara dzichionekwa nguva nenguva:
Varidzi vedzimba vakapikisa kuvakwa kwezviteshi zvepasi uye kucheka tambo dzemaziso pachivande, uye vatatu vakuru vanoshanda pamwe chete kuputsa zviteshi zvese mupaki.
Kunyangwe kune vagariwo zvavo, nhasi, kana iyo nharembozha yapinda mumativi ese ehupenyu, ivo vanozove neruzivo rwekutanga: masaini enharembozha anoburitswa nezviteshi zvepasi.Saka iyo base station inotaridzika sei?
Iyo yakakwana base station system inoumbwa neBBU, RRU uye antenna feeder system (antenna).
Pakati pavo, iyo BBU (Base band Unite, baseband processing unit) ndiyo inonyanya kukosha midziyo muchiteshi chepasi.Inowanzoiswa mukamuri yekombuta yakavanzika uye haigone kuonekwa nevanhuwo zvavo.Iyo BBU ine basa rekugadzirisa kusaina uye data yeiyo core network nevashandisi.Iwo akanyanya kuomarara maprotocol uye algorithms munharembozha kufambiswa zvese zvinoitwa muBBU.Zvinogona kutaurwa kuti base station ndiyo BBU.
Kubva pakuonekwa kwemaonero, iyo BBU yakanyanya kufanana nebhokisi guru rekombuta yedesktop, asi kutaura zvazviri, iyo BBU yakafanana neyakatsaurirwa (panzvimbo peyakajairwa-chinangwa komputa) server.Mabasa ayo makuru anoonekwa nemhando mbiri.Iwo makiyi mabhodhi anoonekwa neiyo main control board uye baseband board.
Mufananidzo uri pamusoro ndeye BBU furemu.Zvinogona kuoneka zvakajeka kuti kune 8 dhirowa-senge slots muBBU furemu, uye iyo huru yekudzora bhodhi uye baseband bhodhi inogona kuiswa mune idzi slots, uye BBU furemu Mabhodhi akawanda makuru ekudzora uye baseband mapuranga anoda kuiswa, kunyanya. zvinoenderana nezvinodiwa zvechigadziko chekuvhurwa.Iyo yakawanda mabhodhi akaiswa, iyo inowedzera huwandu hweiyo base station, uye vashandisi vazhinji vanogona kushumirwa panguva imwe chete.
Iyo main control board ine basa rekugadzirisa kusaina (RRC kusaina) kubva kune yakakosha network uye nharembozha yemushandisi, ine basa rekubatanidza uye kupindirana neiyo core network, uye ine basa rekugamuchira GPS kuwiriranisa ruzivo uye chinzvimbo ruzivo.
Iyo RRU (Remote Radio Unit) yakatanga kuiswa muBBU furemu.Yaimbonzi RFU (Radio Frequency Unit).Iyo inoshandiswa kushandura iyo baseband siginecha inofambiswa kubva kune baseband bhodhi kuburikidza neiyo optical fiber muiyo frequency bhendi yeanoshanda.Chiratidzo chepamusoro-frequency chinotumirwa kune antenna kuburikidza ne feeder.Gare gare, nekuti kurasikirwa kwekutapurirana kwefeeder kwakawanikwa kuve kwakanyanya, kana iyo RFU yakaiswa muBBU furemu uye yakaiswa mukamuri yemuchina, uye antenna yakaturikwa pashongwe iri kure, iyo feeder yekufambisa kureba iri kure uye kurasikirwa. yakakurisa, saka ingo bvisa iyo RFU kunze.Shandisa iyo optical fiber (optical fiber transmission kurasikirwa idiki) kusungirira pashongwe pamwe neantenna, saka inova iyo RRU, inova iri kure redhiyo unit.
Chekupedzisira, antenna iyo munhu wese anoona kazhinji mumigwagwa nemumikoto yeguta ndiyo antenna inofambisa chiratidzo chisina waya.Iyo yakavakirwa-mukati yakazvimirira transceiver units yeLTE kana 5G antenna, iyo yakawanda data hova inogona kutumirwa. panguva imwe chete, uye hukuru hwehuwandu hwekutumira data.
Kune 4G antennas, anosvika masere akazvimirira transceiver mayuniti anogona kuoneka, saka pane masere anopindirana pakati peRRU neantenna.Iyo 8 inopindirana pasi pe8-channel RRU inogona kuoneka zvakajeka mumufananidzo uri pamusoro, nepo mufananidzo uri pazasi unoratidza Iyo 8-chiteshi antenna ine 8 nzvimbo.
Iyo 8 inopindirana paRRU inoda kubatanidzwa kune 8 interfaces pane antenna kuburikidza ne8 feeder, saka tuft yewaya nhema inogona kazhinji kuoneka paantenna pole.
Nguva yekutumira: Kubvumbi-01-2021