Background Technology
Ikozvino kubatana kuri kuramba kuchiwedzera kukosha kune marine application.Kuchengeta kubatanidza uye kutaurirana pagungwa kunobvumira zvikepe kufamba zvakachengeteka uye kufamba nedambudziko rakakura.
Iyo IWAVE 4G LTE Yakavanzika Network Solutioninogona kugadzirisa dambudziko iri nekupa yakagadzikana, kumhanya kukuru, uye yakachengeteka network kune ngarava.
Ngatidzidzei kuti iyo system inobatsira sei pazasi.
1. Nguva yekuedza: 2018.04.15
2. Chinangwa chekuedza:
• Performance Test yeTD-LTE Wireless private network tekinoroji munzvimbo dzemugungwa
• Kuongorora kuvharwa kwewaya kweiyo Integrated base station (PATRON - A10) muOcean
• Hukama pakati penzvimbo isina waya yekuvhara uye kureba kwekuisa kweyakavanzika network base station (PATRON - A10).
• Ndeipi chiyero chekudhawunirodha yematerminals anofambisa pabhodhi kana base station yaiswa mumhepo nehelium balloon?
• Iyo helium balloon inoiswa pamwe netiweki kumhanya kweiyo mobile terminal ye base station mumhepo.
• Kana base station antenna ikazununguka mudenga pamwe chete nebharumu, pesvedzero ye base station antenna pakuvhara isina waya inosimbiswa.
3. Zvishandiso Mukuyedzwa:
Device Inventory paHelium Balloon
| TD-LTE isina waya yakavanzika network yekubatanidza sisitimu (ATRON - A10)*1 |
| Optical transceiver * 2 |
| 500meters Multimode fiber network tambo |
| Laptop * 1 |
| Wireless router * 1 |
Equipment Inventory pachikepe
| Motokari-yakakwira-yakaiswa CPE (KNIGHT-V10) * 1 |
| Yakakwira-kuwana 1.8 metres omnidirectional girazi fiber antenna * 2 (kusanganisira feed tambo) |
| Network cable |
| Laptop * 1 |
| Wireless router |
Gadzirisa Complete Test System
1,Kuisa Base Station
The LTE yakavanzika network yese mune imwe base chiteshi inoiswa pachibharumu chehelium chiri 4 km kubva kumahombekombe.Hurefu hwepamusoro hwebharumu rehelium hwaive mamita mazana mashanu.Asi muyedzo iyi, kureba kwayo chaiko kunosvika 150m.
Kuiswa kweinotungamira antenna pabharumu inoratidzwa muFIG.2.
Iyo horizontal angle yehombe huru yakatarisana nepamusoro pegungwa.Pan-Tilt inogona kukurumidza kugadzirisa yakachinjika kona yeantenna kuti ive nechokwadi chekuvhara chiratidzo uye nzvimbo.
2,Network Configuration
Wireless all-in-one LTE base stations (Patron - A10) pamabharumu akabatanidzwa kune fiber optic network kuburikidza neEthernet tambo, fiber optic tambo, fiber optic transceivers, uye router A. Zvichakadaro, yakabatana neFTP server (laptop ) kuburikidza newireless router B.
3 、 Deployment10watts CPE (Knight-V10)pabhodhi
CPE (Knight-V10) yakasungirirwa pachikepe chekubata hove uye antenna inoiswa pamusoro pekabhu.Iyo antenna yekutanga inoiswa pamamita 4.5 kubva padanho regungwa uye yechipiri antenna iri 3.5 metres kubva pagungwa.Nhambwe iri pakati pemaantenna maviri ingangoita 1.8 metres.
Laptop iri mungarava ine chekuita neCPE kuburikidza netiweki tambo uye ine chekuita neiyo iri kure FTP server kuburikidza neCPE.Iyo FPT software yelaptop uye iri kure FTP server inoshandiswa pamwe chete paFTP yekurodha bvunzo.Zvichakadaro, iyo traffic statistics chishandiso chinomhanya palaptop chinogona kurekodha Internet traffic uye traffic munguva chaiyo.Vamwe vaedzi vanoshandisa nharembozha kana mapedhi kuti vabatanidze kuWLAN yakavharwa neCPE kusefa paInternet mukabhini, sekuona bhaisikopo repamhepo kana kufona pavhidhiyo kuyedza kumhanya kweInternet.
Kugadziriswa kweBase Station
| Pakati penguva: 575Mhz |
| Bandwidth: 10Mhz |
| Wireless simba: 2 * 39.8 dbm |
| Special subframe ratio: 2:5 |
| NC: yakagadzirirwa se8 |
| Antenna SWR: antenna huru 1.17, antenna yekubatsira 1.20 |
Testing process
Test Start
Musi waKubvumbi 13,15:33, chikepe chehove chaifamba, uye 17:26 pazuva rimwe chetero, bharumu rakasimudzwa kusvika paurefu hwemamita 150 ndokusimudzwa.Zvadaro, iyo CPE yakabatana isina waya kune base station, uye panguva ino, chikepe chehove chiri kure nechiteshi 33km.
1,Test Content
Laptop iri mungarava ine FPT yekurodha, uye saizi yefaira yainonangwa ndeye 30G.Iyo pre-yakaiswa BWM software inorekodha chaiyo-nguva Internet traffic uye inorekodha iyo GPS ruzivo munguva chaiyo kuburikidza nenhare mbozha.
Vamwe vashandi vari muchikepe chekuredza vanopinda paInternet kuburikidza neWIFI, tarisa mavhidhiyo epamhepo uye kuita vhidhiyo kufona.Vhidhiyo yepamhepo yakatsetseka, uye vhidhiyo yekufona izwi rakajeka.Muedzo wese waive 33km - 57.5 km.
2,Test kurekodha tafura
Panguva yekuyedzwa, zvikamu zvekuzadza pachikepe rekodhi GPS inorongedzerwa, CPE chiratidzo chesimba, FTP avhareji yekurodha chiyero, uye rumwe ruzivo munguva chaiyo.Iyo data rekodhi tafura ndeyekutevera (chinhambwe kukosha chinhambwe pakati pechikepe nemahombekombe, iyo yekurodha mutengo weiyo dhizaini yekurodha yeBWM software rekodhi).
| Distance (km) | 32.4 | 34.2 | 36 | 37.8 | 39.6 | 41.4 | 43.2 | 45 | 46.8 | 48.6 | 50.4 | 52.2 | 54 | 55.8 |
| Simba rechiratidzo (dbm) | -85 | -83 | -83 | -84 | -85 | -83 | -83 | -90 | -86 | -85 | -86 | -87 | -88 | -89 |
| Mwero yedhaunirodha (Mbps) | 10.7 | 15.3 | 16.7 | 16.7 | 2.54 | 5.77 | 1.22 | 11.1 | 11.0 | 4.68 | 5.07 | 6.98 | 11.4 | 1.89 |
3,Chiratidzo Chinovhiringidza
Pana Kubvumbi 13,19:33, chiratidzo chakangoerekana chavhiringwa.Kana chiratidzo chikavhiringidzwa, chikepe chehove chiri kumahombekombe kure nechiteshi chingaita 63km (ichiongororwa).Kana chiratidzo chikavhiringidzwa, iyo CPE chiratidzo chesimba - 90dbm.Base station GPS ruzivo: 120.23388888, 34.286944.Flast FTP yakajairika GPS ruzivo: 120.9143155, 34.2194236
4,Kupera kwebvunzo.
Kuma15thKubvumbi, nhengo dzese dziri muchikepe dzinodzokera kumahombekombe uye dzinopedzisa bvunzo.
Ongororo yeMibvunzo Yemhinduro
1,Horizontal coverage angle yeantenna uye hove chikepe chekufambisa nzira
Iyo yekuvhara kona yeantenna yakanyanya kufanana nenzira yechikepe.Kubva kusimba rechiratidzo cheCPE, zvinogona kugumiswa kuti chiratidzo jitter idiki.Nenzira iyi, iyo inotungamira pan-tilt antenna inogona kugutsa zvakanyanya kuvharwa kwechiratidzo zvinodiwa mugungwa.Panguva yekuyedzwa, iyo inotungamira antenna ine yakanyanya kuchekwa-kubvisa kona ye10 °.
2,FTP Kurekodha
Girafu yekurudyi inomiririra FTP chaiyo-nguva yekurodha mwero, uye inoenderana neGPS ruzivo rwenzvimbo inoratidzwa pamepu.Panguva yekuyedza, kune akati wandei data traffic jitter uye masaini mumatunhu mazhinji akanaka.Avhareji yekudhawunirodha mwero yakakwira kupfuura 2 Mbps, uye yekupedzisira yakarasika yekubatanidza nzvimbo (63km kure nemahombekombe) ndeye 1.4 Mbps.
3,Mobile terminal test results
Iyo yekubatanidza kubva kuCPE kuenda kune isina waya yakavanzika network yakarasika, uye vhidhiyo yepamhepo inotariswa nemushandi yakatsetseka uye haina lag.
4,Chiratidzo Chinovhiringidza
Kubva pane base chiteshi uye CPE parameter marongero, iyo CPE chiratidzo chesimba chinofanira kunge chiri - 110dbm kana chiratidzo chikavhiringidzwa.Nekudaro, mumhedzisiro yebvunzo, iyo chiratidzo chesimba - 90dbm.
Mushure mekuongororwa kwezvikwata, ndicho chikonzero chikuru chekufungidzira kuti kukosha kweNCS hakuna kuisirwa kure kure paramende kumisikidzwa.Kusati kwatanga bvunzo, mushandi haasete kukosha kweNCS kunzvimbo iri kure kwazvo nekuti iyo iri kure yekumisikidza ichakanganisa chiyero chekurodha.
Tarisa kune inotevera nhamba:
| NCS Configuration | Theoretical frequency bhendi yeimwe antenna (20Mhz Base Station) | Theoretical bandwidth yemaviri antenna (20Mhz Base Station) |
| Gadzirisa mune iyi Test | 52Mbps | 110Mbps |
| Iyo yekure Setup | 25Mbps | 50Mbps |
Zano: Iyo NCS inoiswa kune iyo iri kure yekumisikidza pane inotevera bvunzo, uye throughput yehurongwa uye nhamba yevashandisi vakabatana zvinobatikana kana NCS yaiswa kune imwe gadziriso.
Mhedziso
Yakakosha bvunzo data uye ruzivo zvakawanikwa neIWAVE tekiniki timu kuburikidza nekuyedzwa uku.Muedzo unoongorora kugona kwetiweki yekuvhara yeTD-LTE isina waya yakavanzika network system munzvimbo yegungwa uye kugona kuvhara chiratidzo munyanza.Zvichakadaro, mushure mekunge nharembozha yapinda paInternet, kumhanya kwekurodha kweiyo yepamusoro-simba CPE pasi pemafambiro akasiyana ekufamba uye ruzivo rwemushandisi unowanikwa.
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Nguva yekutumira: Mar-13-2023