Menene tashar tushe
A cikin 'yan shekarun nan, labarai kamar haka suna fitowa kowane lokaci kaɗan:
Mazaunan sun yi adawa da gina tashoshi na tushe da yanke igiyoyi na gani a asirce, kuma manyan ma’aikatan guda uku sun yi aiki tare domin rusa dukkan tashoshin tashar da ke wurin shakatawa.
Hatta ga mazauna gari, a yau, lokacin da Intanet ɗin wayar hannu ta shiga cikin kowane fanni na rayuwa, za su kasance da azancin fahimta: ana fitar da siginar wayar hannu ta tashoshin tushe.To yaya tashar tashar ta yi kama?
Cikakken tsarin tashar tushe ya ƙunshi BBU, RRU da tsarin ciyarwar eriya (antenna).
Daga cikin su, BBU (Base band Unite, rukunin sarrafa kayan aiki) shine mafi girman kayan aiki a tashar tushe.Gabaɗaya ana sanya shi a cikin ɗaki na kwamfuta da ke ɓoye kuma talakawa mazauna ba za su iya gani ba.BBU tana da alhakin sarrafa sigina da bayanan cibiyar sadarwa da masu amfani.Mafi hadaddun ladabi da algorithms a cikin sadarwar wayar hannu duk ana aiwatar da su a cikin BBU.Har ma za a iya cewa tashar tashar BBU ce.
Ta fuskar bayyanar, BBU ya yi kama da babban akwatin kwamfutar tebur, amma a gaskiya, BBU yana kama da uwar garken sadaukarwa (maimakon babban maƙasudin kwamfuta).Babban ayyukansa ana samun su ta nau'i biyu.Ana gane allon maɓalli ta babban kwamiti mai kulawa da allon tushe.
Hoton da ke sama shine firam ɗin BBU.Za a iya gani a sarari cewa akwai ramummuka masu kama da drawer guda 8 a cikin firam ɗin BBU, kuma ana iya shigar da babban allon sarrafawa da allo na baseband a cikin waɗannan ramummuka, da firam ɗin BBU Ana buƙatar saka allunan sarrafawa da yawa, galibi. dangane da buƙatun iya aiki na tashar tushe da za a buɗe.Yayin da ake ƙara allunan, ƙarfin tashar tushe yana da yawa, kuma ana iya ƙara yawan masu amfani a lokaci guda.
Babban hukumar kula yana da alhakin sarrafa siginar (RRC siginar) daga cibiyar sadarwa na cibiyar sadarwa da wayar hannu mai amfani, ita ce ke da alhakin haɗin kai da sadarwa tare da cibiyar sadarwar, kuma tana da alhakin karɓar bayanan aiki tare na GPS da bayanan sakawa.
An fara sanya RRU (Rashin Remote Remote) a cikin firam ɗin BBU.A da ana kiransa RFU (Sashin Mitar Radiyo).Ana amfani da shi don juyar da siginar tushe wanda aka watsa daga allon tushe ta hanyar fiber na gani zuwa rukunin mitar mitar mai aiki.Ana watsa siginar babban mitoci zuwa eriya ta hanyar mai ciyarwa.Daga baya, saboda asarar watsawar feeder ya yi yawa sosai, idan RFU an saka shi a cikin firam ɗin BBU kuma an sanya shi a cikin ɗakin injin, kuma an rataye eriya a kan hasumiya mai nisa, nisan watsawar feeder ya yi nisa sosai kuma asarar. yayi girma sosai, don haka kawai a fitar da RFU.Yi amfani da fiber na gani (asarar watsawar fiber na gani yana da ɗan ƙaramin ƙarfi) don rataya a kan hasumiya tare da eriya, don haka ya zama RRU, wanda shine rukunin rediyo mai nisa.
A ƙarshe, eriyar da kowa ke gani sau da yawa a tituna da lungunan birni ita ce eriyar da a zahiri ke watsa siginar mara igiyar waya.Ƙarin ginanniyar raka'o'in transceiver masu zaman kansu na eriyar LTE ko 5G, ƙarin magudanar bayanai da za a iya aikawa. a lokaci guda, kuma mafi girman adadin watsa bayanai.
Don eriya 4G, har zuwa raka'o'in transceiver masu zaman kansu za a iya gane su, don haka akwai musaya 8 tsakanin RRU da eriya.Ana iya ganin hanyoyin haɗin 8 a ƙarƙashin tashar RRU 8 a fili a cikin adadi a sama, yayin da hoton da ke ƙasa ya nuna Eriya ce ta tashar 8 tare da musaya 8.
Abubuwan musaya na 8 akan RRU suna buƙatar haɗa su zuwa musaya na 8 akan eriya ta hanyar ciyarwar 8, don haka ana iya ganin tut ɗin baƙar fata sau da yawa akan sandar eriya.
Lokacin aikawa: Afrilu-01-2021