Nangona i-4G inikwe ilayisenisi e-China, ukwakhiwa kwenethiwekhi enkulu kusanda kuqalisa.Ukujongana nokukhula okugqabhukileyo kwedatha yeselula, kuyimfuneko ukuqhubeka nokuphucula umthamo wenethiwekhi kunye nomgangatho wokwakhiwa kwenethiwekhi.Nangona kunjalo, ukusabalalisa kwe-4G frequency, ukwanda kokuphazamiseka, kunye nesidingo sokwabelana ngesayithi kunye ne-2G kunye ne-3G izikhululo zesiseko ziqhuba uphuhliso lwe-antenna yesikhululo esisezantsi ukuya kwicala lokudibanisa okuphezulu, ububanzi obubanzi kunye nohlengahlengiso oluguquguqukayo.
Umthamo wokugubungela inethiwekhi ye-4G.
Umaleko wokhuselo wothungelwano olulungileyo kunye nobukhulu obuthile bomthamo womthamo ziziseko ezibini zokumisela umgangatho wothungelwano.
Uthungelwano olutsha lwesizwe kufuneka luthathele ingqalelo ulwakhiwo lomthamo womnatha wothungelwano ngelixa ugqibezela ujoliso lokhuselo.Ngokubanzi, kukho iindlela ezintathu kuphela zokuphucula umthamo wenethiwekhi, "uWang Sheng, umlawuli wentengiso yezisombululo zenethiwekhi engenazingcingo yaseTshayina kwiyunithi yeshishini elingenazingcingo leCommScope, uxelele iindaba ze-elektroniki zaseTshayina.
Enye kukusebenzisa iifrikhwensi ezininzi ukwenza i-bandwidth ibe banzi.Umzekelo, i-GSM ekuqaleni yayine-900MHz frequency.Emva kwexesha, abasebenzisi bonyuka kwaye i-1800MHz frequency yongezwa.Ngoku ii-frequencies ze-3G kunye ne-4G zininzi.I-Frequency ye-TD-LTE ye-China ye-Mobile ineebhendi ezintathu, kwaye i-frequency ye-2.6GHz isetyenzisiwe.Abanye abantu kwishishini bakholelwa ukuba lo ngumda, kuba ukuthotywa kwe-high-frequency attenuation kuya kuba nzima ngakumbi, kwaye igalelo kunye nemveliso yezixhobo zingaphandle.Okwesibini kukunyusa inani lezikhululo ezisisiseko, eyona ndlela isetyenziswa kakhulu.Okwangoku, ukuxinana kwezikhululo ezisisiseko kwizixeko ezikhulu neziphakathi kuncitshisiwe ukusuka kumndilili wesikhululo esisisiseko esinye ngekhilomitha ukuya kwisikhululo esinye esiziimitha ezingama-200-300.Okwesithathu kukuphucula ukusebenza kakuhle kwe-spectrum, nto leyo ekhokelela kwisizukulwana ngasinye sobuchwepheshe bonxibelelwano oluphathwayo.Okwangoku, i-spectrum esebenzayo ye-4G iyona nto iphezulu, kwaye ifikelele kwi-downlink rate ye-100m e-Shanghai.
Ukuba nenethwekhi elungileyo kunye nobukhulu obuthile bomaleko womthamo ziziseko ezibini ezibalulekileyo zothungelwano.Ngokucacileyo, indawo ye-China Mobile ye-TD-LTE kukwenza inethiwekhi ekumgangatho ophezulu kwaye ime phezulu kwimakethi ye-4G enolwazi oluphezulu lomsebenzisi."Sibandakanyeka ekwakhiweni kweenethiwekhi ezininzi ze-240 LTE emhlabeni.""Ngokusuka kumava eCommScope, kukho izinto ezintlanu kulwakhiwo lwenethiwekhi ye-LTE. Eyokuqala kukulawula ingxolo yenethiwekhi; eyesibini kukucwangcisa nokulawula icandelo elingenazingcingo; eyesithathu kukuphucula inethiwekhi; eyesine kukwenza i umsebenzi olungileyo kwisiginali yokubuya, oko kukuthi, i-bandwidth yesiginali ye-uplink kunye ne-downlink yesiginali kufuneka ibe banzi ngokwaneleyo; eyesihlanu kukwenza umsebenzi olungileyo wokugubungela ngaphakathi kunye nokugubungela phantsi kwendawo ekhethekileyo yeendawo.
Iinkcukacha zobugcisa zovavanyo lolawulo lwengxolo.
Yingxaki yokwenyani ukulawula inqanaba lengxolo kwaye wenze abasebenzisi bomda womnatha bafikelele kwisantya esiphezulu.
Ihluke kwi-3G yokuphucula umqondiso ngokunyusa amandla okuhambisa, inethiwekhi ye-4G iya kuzisa ingxolo entsha kunye nokwandiswa kwesignali."Uphawu lwenethiwekhi ye-4G kukuba ingxolo ayichaphazeli nje kuphela icandelo eligutyungelwe yi-antenna, kodwa lichaphazela amacandelo ajikelezileyo. Ngokomzekelo, kuya kubangela i-handoffs ethambileyo engaphezulu, okubangela ukulahlekelwa kwepakethe ephezulu. Ukusebenza kukuba i Izinga lokuhanjiswa kwedatha liyancitshiswa, amava omsebenzisi ayancipha, kwaye ingeniso iyancipha."U-Wang Sheng uthe, "ukude inethiwekhi ye-4G isuka kwisikhululo sesiseko, isantya esisezantsi sedatha, kwaye inethiwekhi ye-4G isondele kumthumeli, abasebenzisi abaninzi bezibonelelo banokufumana. Kufuneka silawule izinga lengxolo, ngoko ke. ukuba umda womnatha unokufikelela kwisantya esiphezulu, yingxaki ekufuneka siyisombulule."Ukusombulula le ngxaki, kukho iimfuno ezininzi: okokuqala, i-bandwidth ye-RF inxalenye kufuneka ibe banzi ngokwaneleyo;okwesibini, ukusebenza kwezixhobo zothungelwano lwefrikhwensi kanomathotholo kufuneka kulunge ngokwaneleyo;okwesithathu, i-bandwidth yesignali ye-uplink ibuyiselwe kufuneka ibe banzi ngokwaneleyo.
Kuthungelwano lwesiqhelo lwe-2G, uthungelwano oludityanisiweyo oludityanisiweyo lweeseli zesikhululo ezikufutshane lukhulu.Iifowuni eziphathwayo zingafumana imiqondiso evela kwizikhululo ezahlukeneyo.Iifowuni eziphathwayo ze-2G ziya kuzitshixa ngokuzenzekelayo kwisikhululo esisisiseko esinophawu olunamandla, ungahoyi abanye.Kuba ayizukutshintsha rhoqo, ayizukubangela naluphi na uphazamiseko kwiseli elandelayo.Ngoko ke, kwinethiwekhi ye-GSM, kukho iindawo ezi-9 ukuya kwi-12 ezidibeneyo ezinokunyamezela.Nangona kunjalo, kwixesha le-3G, ukugubungela okugqithisiweyo kwenethiwekhi kuya kuba nefuthe elikhulu kumandla okusebenza kwenkqubo.Ngoku, i-eriyali enama-65 eengile ethe tyaba ethe tyaba isetyenziselwa ukugubungela amacandelo amathathu.Ukhuselo lwamacandelo amathathu e-LTE lufuna i-eriyali yokusebenza okuphezulu ukuba yenziwe ngendlela efanayo ne-3G."I-antenna ebizwa ngokuba yi-high-performance antenna ithetha ukuba xa usenza i-65 degree antenna coverage, ukugubungela kumacala omabini othungelwano kuncipha ngokukhawuleza, okwenza indawo edibeneyo phakathi kothungelwano ibencinci. Ngoko ke, sinokubona ngokucacileyo ukuba iinethiwekhi ze-LTE ziphezulu kwaye iimfuno eziphezulu zezixhobo."Wang Sheng wathi.
Ulwahlulo lwamaxesha oluzimeleyo oluqhutywa ngombane luya lusiba lubaluleke ngakumbi.
Kuyimfuneko ukulawula umda we-network waveform ngokuchanekileyo ukunciphisa ukuphazamiseka kwesikhululo.Eyona ndlela ilungileyo kukuqonda ulawulo lwe-eriyali ekude.
Ukusombulula ukulawulwa kokuphazamiseka kwenethiwekhi, ikakhulu kuxhomekeke kwimiba emininzi: okokuqala, ukucwangciswa kwenethiwekhi, ukushiya umda owaneleyo wokuphindaphinda;okwesibini, inqanaba lesixhobo, inkqubo nganye yokwakha kufuneka ilawulwe kakuhle;okwesithathu, inqanaba lofakelo."Sangena eChina ngo-1997 kwaye senza amatyala amaninzi asebenzayo. Kwikholeji yase-Andrew, ejongene ne-eriyali, siza kwenza uqeqesho lokubafundisa indlela yokufaka nokusebenzisa iimveliso zethu ezingenazintambo. Kwangaxeshanye, sineqela yenza izihlanganisi kunye nee-eriyali. " Iimveliso ezingenazingcingo, ngakumbi iimveliso zangaphandle, zineyona ndawo imbi kakhulu yokusebenza kuyo yonke inkqubo yonxibelelwano, ejongene nomoya, ilanga, imvula, ubushushu obuphezulu kunye nobushushu obuphantsi, ngoko ke iimfuno zayo ziphezulu kakhulu."Iimveliso zethu zinokuma apho iminyaka eyi-10 ukuya kwe-30. Akulula ngokwenene."Wang Sheng wathi.
Ixesha lokuposa: Aug-03-2022
