Mbiri
IWAVE idadzipangira yokha njira yophatikizira yozikidwa paukadaulo wa LTE, yomwe ili ndi maubwino odziwikiratu pakubisala panyanja komanso kuchita bwino kwambiri.
Dongosolo lophatikizika la TD-LTE lili ndi maubwino aukadaulo wofikira nthawi yayitali, ukadaulo wa RRU wamphamvu kwambiri, ukadaulo wowonjezera mphamvu, kuwulutsa kwamitengo yopapatiza kuti apititse patsogolo kufalikira kwa netiweki, kupindula kwakukulu kwa CPE, ukadaulo wolumikizirana pafupipafupi, ndi zina zambiri, kuwongolera bwino Kufotokozera kwa gulu lankhondo lankhondo ndi anthu wamba.Mphamvu.Zili ndi makhalidwe ophatikizana kwambiri komanso osasamalidwa bwino, oyenerera malo ovuta komanso ovuta, ndipo amapereka kufalitsa kokhazikika komanso kodalirika.
Zaukadaulo Zamankhwala
Ukadaulo wofikira kwautali wautali
Kupyolera mu kasinthidwe ka nthawi yapadera, mtunda wofikirako ukhoza kufika ku 90km kuti ukwaniritse zosowa zoyankhulirana za pafupi, zapakati, ndi zakutali.Kusintha kwapadera kwapadera kwa 7 (10: 2: 2) komwe kumagwiritsidwa ntchito 7 (10: 2: 2) kungathe kuthandizira 15km, ndipo 5 (3: 9: 2) yapadera yomwe imagwiritsidwa ntchito pa 90km.Kusintha kwakukulu (kutayika kwa gawo la bandwidth), kasinthidwe 0, kumatha kufika 119km.
Kuwulutsa kwamtundu wocheperako kumawonjezera kufalikira kwa netiweki.
Tekinoloje iyi imatha kuwongolera ma tchanelo, PDSCH TM2/TM3, CRS, ndi zina zambiri, zomwe zili zoyenera pazithunzi zokhala ndi zocheperako za CRS.Pakufalikira kwa njira zazitali komanso kufalikira kwa zilumba zazing'ono, malo omwe amafikirako ndi ochepa ndipo atha kugwiritsidwa ntchito.Itha kukwezedwa ku CRS ndi pafupifupi 50%.
Mtengo wotsika kwambiri wa magawo a CPE
CPE low noise amplifier ntchito imathandizira kulandila kwa LTE.Wokhala ndi mlongoti wa 8db omnidirectional, ndikumapeza pafupifupi 20dbi, Chotsani kuwonongeka kolowera kwa 10 ~ 20db, kupititsa patsogolo kulandirira, ndipo mtunda wofikira ukhoza kuwonjezeka ndi 150% -200%.Chipangizocho ndi IP67 chopanda madzi, sichimakonza pambuyo poika.
Ukadaulo wa Low Frequency Propagation
Gulu la pafupipafupi la 600MHz limatchedwa "digital dividend", lomwe lili ndi ubwino wa kutayika kwa mauthenga otsika, kufalikira kwakukulu, kulowa mwamphamvu, mtengo wotsika wa intaneti, ndi zina zotero.
Mafupipafupi otsika amakhala ndi maubwino ochulukirachulukira, kutayika kochepa kufala, komanso kutha kwamphamvu kwa radiation.Potumiza masiteshoni amitundu yambiri, mwayi wofikira ndiwodziwikiratu.Mwachitsanzo, m'matauni odzaza, kuchuluka kwa malo otumizira omwe amafunikira 1.4GHz/1.8GHz ndi 3-4 kuchulukitsa kwa 600MHz, ndipo m'malo opanda kanthu monga midzi kapena zisumbu, ndi 2-3 kuchuluka kwa omwe amatumizidwa. 600M frequency band.
Kuphatikiza kwakukulu, kopanda kukonza
Zidazi zimaphatikizidwa kwambiri popanda kuyika chipinda cha makina, makinawa amaphatikiza zinthu zazikulu za LTE network monga RRU, BBU, EPC ndi zina zotero, ndizosavuta kuyika, ndipo kwenikweni ndi zero mu zida za IPv6 zopanda madzi.
Palibe chifukwa chotumizira zipinda zamakompyuta, ndipo zidazo zimaphatikizidwa kwambiri.Dongosolo limaphatikiza RRU, BBU, EPC ndi zinthu zina zazikulu zapaintaneti za LTE kukhala imodzi, yomwe ndi yabwino kutumizidwa.Zipangizozi ndizopanda madzi IPV6, ndipo kwenikweni palibe kukonza.
Mapu a Networking Topology pakuyesa uku
Kufotokozera mwachidule za kuyezetsa
1, The TD-LTE panja Integrated dongosolo wamangidwa pa chitsulo nsanja kapena mkulu-kukwera nyumba pafupi ndi chilumbachi, ndi Intaneti opanda zingwe ntchito.
Router yapagulu yapagulu ndi chowonjezera cha TD-LTE chakunja chophatikizika, chomwe chitha kukhazikitsidwa, kuyendetsedwa, ndikulandilidwa kuchokera kumasiteshoni angapo oyambira kuti zitsimikizire kukhazikika kobwerera.
2, The TD-LTE panja Integrated dongosolo ali kusakanikirana mkulu ndi Integrated maukonde pachimake, BBU ndi RRU kuonetsetsa mphamvu ya mkulu-mphamvu lonse Kuphunzira m'dera pamene kukonza bata ntchito zida.Dongosolo lophatikizika limathandizira IP67 yopanda madzi ndikusinthira kumadera ovuta komanso nyengo yoyipa.
3, Dongosolo lophatikizira lakunja la TD-LTE ndi CPE zimaphimbidwa ndi gulu lankhondo ndi anthu wamba ma frequency band (566-606 frequency point).Kutayika kwa malo otsika kwambiri kumakhala kochepa, ndipo kufalitsa ndi mphamvu yowonongeka kumatsimikizira bandwidth ndi mtunda wochuluka wofikira.
4, CPE mafakitale-grade IP67 ndi yopanda madzi, imagwirizana ndi malo ovuta akunja, ndipo khalidwe la mafakitale limapangitsa kuti bandwidth ndi bata.Kutumiza kogwirizana ndi kupereka mphamvu ndi zida za meteorological.
Zotsatira zoyezetsa zamadzi.
Zidazi zimakhazikitsidwa m'nyumba yokwera kwambiri ya Dishui Lake ku Shanghai, yomwe imayesa Yangshan Port ndi Hangzhou Bay motsatana.Malo oyambira amayikidwa panthawiyo ndi mtengo wa tripod (33m pamwamba pa nyanja), ndipo mtunda woyezetsa kwambiri ndi 54km.
CPE chizindikiro mphamvu-74, foni yam'manja (200mw) mwayi wamba, bizinesi wamba, kanema womveka bwino komanso wosalala.Zofunikira za polojekiti panthawiyo zakwaniritsidwa, ndipo kuyesa kwina sikunachitike.Itha kukwaniritsa kuphimba kosalekeza kwa madzi a Yangshan Island ndi Drishui Lake.
Malangizo a Zamankhwala
Nthawi yotumiza: Mar-27-2023
