ixabiso lokunyusa isignali yeselula

I. Yintoni ukuphazamiseka okungasemva kwe-amplifier yesignali kwisikhululo sesiseko?

Kwiiprojekthi zokugubungela isignali ezibuthathaka, ingqiqo yokusebenza kwe-mobile signal amplifier (repeater) kukufumana imiqondiso evela kwizikhululo zangaphandle, iwandise, ize iwanike inethiwekhi yangaphakathi. Okona kulungileyo, kufuneka iwandise kuphela isignali efunekayo ngaphakathi, ngaphandle kokubangela naluphi na uphazamiseko olongezelelweyo kwizikhululo zangaphandle.

                                                                                                           isixhasi senethiwekhi yesignali yefowuni yeofisi

Nangona kunjalo, ukuba isixhobo asilungiswanga kakuhle okanye ulwakhiwo lwe-antenna aluchanekanga, i-amplifier inokubuyisela umva isignali yangaphakathi eyandisiweyo ize iyithumele kwisikhululo sesiseko, ngokuyintloko ithumele ingxolo eqhubekayo kwaye yonyuse umgangatho wengxolo wesikhululo sesiseko. Iziphumo ziquka ubunzima beefowuni ezikufutshane ukuba ziqhagamshele kwisikhululo sesiseko, isantya senethiwekhi esinciphileyo, kunye nokufowuna okuyekiswayo; kwiimeko ezinzima, inokonakalisa ukusebenza kwesikhululo sesiseko seseli, nto leyo ebangela ukuba umqhubi aphande aze afune ukuba isixhobo sisuswe.

Qaphela: Ii-amplifier zesignali yeselula ngokwazo azibangeli ukuphazamiseka. Ngezixhobo ezihambelanayo kunye nokufakwa kunye nokulungiswa okufanelekileyo, ukuphazamiseka kwesikhululo sesiseko kunokuthintelwa ngokupheleleyo.

2. Izizathu ezine eziphambili ezibangela ukuphazamiseka kwesikhululo sesiseko

A. Ukungazahluli ngokwaneleyo phakathi kokuhambisa kunye nokwamkela ii-antenna (ezixhaphakileyo ngakumbi)

Ukungabandakanywa ngokwaneleyo phakathi kwe-antenna yangaphandle efumana isignali yesitishi sesiseko kunye ne-antenna ethumela ngaphakathi kukhokelela ekuvuzeni kwesignali emva kokwandiswa ngaphakathi, ibuyele kwi-antenna yangaphandle. Isignali iyajikeleza kwaye ikhule phakathi kwe-antenna ezimbini, ibangela ukuzitshintsha kwesixhobo. Esi signali esizitshintshayo emva koko sibuyela kwisitishi sesiseko, sinyusa ngokuthe ngqo umgangatho wengxolo wesitishi sesiseko kwaye sibangele ukuphazamiseka.

Iiprojekthi ezininzi zokwakha kwindawo zigxila kuphela kumandla esignali yangaphakathi, zingayinaki isithuba kunye nokujonga i-antenna. Iiprojekthi zeVillas kunye nezakhiwo ezingaphantsi komhlaba ezinesignali esibuthathaka ziimeko ezinobungozi obukhulu bale ngxaki.

                                                                                                                           inkqubo yesisombululo sesignali ebuthathaka

B. Iseti yoKufumana iGain ephezulu kakhulu, Amandla okuPhuma adlula imida

Abanye oonjineli, befuna amandla apheleleyo esignali yangaphakathi, bayandisa ngokuthe ngqo inzuzo yesandisi-lizwi sefowuni ephathwayo. Ngaphandle, isignali yesikhululo sesiseko sele ilungile; ukwandiswa kwesignali okubalulekileyo kuyayigqitha isignali ye-uplink. Ukwandiswa okugqithisileyo kwe-uplink yi-repeater yefowuni ephathwayo, ngako oko, "kunokubangela ukuba isikhululo sesiseko siphazamiseke, nto leyo ebangela ukuphazamiseka kuluntu lonke olujikelezileyo.

Ingcamango Engachanekanga: Ukunyuka okuphezulu akusoloko kubhetele, kwaye isignali epheleleyo yangaphakathi ayithethi ukuba ukusebenza ngcono.II-AGC/MGCI-gain kufuneka imiselwe ngokufanelekileyo ngokusekelwe kumandla esignali yomxhasi kwindawo leyo. Lonke uluhlu lwe-repeaters ye-Lintratek Technology luxhotyiswe nge-AGC automatic gain control, ethintela ngokuzenzekelayo i-amplification egqithisileyo kwaye inciphise umngcipheko wokuphazamiseka okuvela kwiimpazamo zabantu ngexesha lokuseta.

izixhobo zokukhulisa iifowuni zasemaphandleni

C. Ukukhethwa kweSignali engalunganga yoNcedo: Ukungafani phakathi kweMeko yeSayithi kunye neeBhanti zeFrequency zeZixhobo

Umzekelo, i-amplifier yesignali yeselula yebhendi ezintlanu ikhethwe ngokungacwangciswanga xa kwakufuneka iibhendi ezimbini kuphela zefrequency zokugubungela isignali ebuthathaka kwindawo. Kwezinye iibhendi zefrequency apho imiqondiso yesikhululo sendawo yayinamandla, izixhobo zisasebenza ukukhulisa amandla aphezulu kwezo bhendi, nto leyo ebangele ukugcwala kwe-uplink kunye nokuphazamiseka kwizikhululo zesiseko. Ngaphezu koko, ezinye iiprojekthi zisebenzise ii-repeaters ezingaphantsi komgangatho, ezingaqinisekiswanga, ezingasebenzi kakuhle ekuhluzeni kunye nokunciphisa okwaneleyo ngaphandle kwebhendi, nto leyo evelisa imiqondiso engeyiyo ephazamisana nezikhululo zesiseko ezikufutshane.

3. Ungakuphepha njani ukuphazamiseka kwesikhululo sesiseko kwangaphambili?

A. Beka phambili ukuhlukaniswa kwee-antenna

Qinisekisa ukuba indawo ibekwe yodwa phakathi kwee-antenna zangaphandle nezangaphakathi. Nika ingqalelo kwindlela ezijongwa ngayo ii-antenna; imiqondiso ye-antenna yangaphakathi akufuneki ibuyele kwii-antenna zangaphandle ukuthintela ukuzitshintsha.

B. Lungisa i-gain ngokufanelekileyo, ubeke phambili i-AGC (Automatic Gain Control)

Ukuze ufumane isignali ebuthathaka, musa ukungxamela ukugquma imigca epheleleyo ngaphakathi. Beka phambili i-AGC evumelayo. Uninzi lwee-amplifier zesignali zeselula zorhwebo zeLinchuang Technology zixhasa iindlela ezimbini ze-AGC/MGC, ezilungelelaniswa neemeko ezahlukeneyo zokugquma ezintsonkothileyo ezifana neetonela, ii-villas, ii-basement, kunye neefektri.

C. Iimveliso ezikhethiweyo kufuneka zihambelane neebhendi zamaza ezikhululo zesikhululo esisezantsi kwindawo leyo.

Yenza uphando kwindawo ukuqinisekisa iibhendi zefrikhwensi ezisetyenziswa apha ekhaya, khetha iimveliso ngokweemfuno, kwaye uphephe ukuqokelela iibhendi zefrikhwensi ezininzi ngokungaboniyo; qinisekisa ukuba iimveliso ziyahambelana kwaye ziqinisekisiwe, kwaye ungazamkeli izixhobo ezingaphantsi komgangatho okanye eziguquliweyo.

D. Qinisekisa iindlela zokwakha ezifanelekileyo

Qinisa izihlanganisi ze-feeder kwaye uqinisekise ukuba amanzi ayangeni; bala ilahleko ze-feeder kwangaphambili ukuze uphephe ukuvuza kwesignali; kuphephe ukubeka ii-antenna zangaphandle ngqo ngokuchasene nezitishi zesiseko.

E. Kufuneka kuhlolwe emva kokugqitywa kwesifundo.

Emva kokuba umsebenzi wokuqalisa iprojekthi ugqityiwe, jonga imeko ye-alamu yesixhobo. Akufuneki kubekho i-alamu yokuzivuselela yesibane esibomvu; ngaxeshanye, jonga inethiwekhi yeselula ejikelezileyo. Ukuba akukho kubambezeleka okungaqhelekanga, umsebenzi wokuqalisa iprojekthi uthathwa njengogqityiweyo.

                                                                                                iprojekthi yokuqinisa isignali yobuthathaka yesakhiwo seofisi

4, Amanyathelo Okucombulula Iingxaki Ngokukhawulezileyo Kwisiphazamiso Sesitishi Esikhoyo

1.）Nciphisa inzuzo yesandisi-lizwi sefowuni ephathwayo kwaye ujonge ukuba ukuphazamiseka kuncitshisiwe na;

2.） Jonga indawo kunye nolwalathiso lwee-antenna ezimbini kwaye wongeze ukuhlukaniswa;

3.） Jonga intambo ye-feeder kunye nezihlanganisi ukuba azikhululekanga okanye azinamonakalo;

4. （Jonga ii-alamu zokuzishukumisa. Ukuba kwenzeka ukuzishukumisa, kufuneka kujongwane nako ngoko nangoko;

5. ）Ukuba usebenzisa imo ye-MGC ngesandla, tshintshela kwimo yokulawula i-AGC ngokuzenzekelayo ukuze kuvavanywe.