I-Los 3GPP AT imiyalo Zibalulekile ekuxhumaneni nasekulungiseni amadivaysi eselula namamojula okuxhumana. Le miyalo inika amandla ukusebenzelana nenethiwekhi futhi yenza kube lula imisebenzi ehlukahlukene ebalulekile kubuchwepheshe be-GSM, UMTS kanye ne-LTE, okubalulekile ekuthuthukisweni nasekulawuleni amadivayisi enethiwekhi.
Kulesi sihloko sizohlola ngokuningiliziwe ukuthi iyini imiyalo ye-AT kumongo we-3GPP, ukuthi isebenza kanjani, isetshenziselwa ini, nokuthi iguquke kanjani ngokuhamba kwesikhathi. Ukwengeza, sizohlaziya amazinga nezinguqulo ezihlukene ze-3GPP, sichaze imininingwane yobuchwepheshe kanye nokusetshenziswa okusebenzayo kwale miyalo.
Iyini i-3GPP?
El Iphrojekthi Yobambiswano Yesizukulwane Sesithathu (3GPP) Kuyinhlangano yokuma eyakha izivumelwano zokuxhumana ngomakhalekhukhwini kusukela kwesesibili kuya kwesesihlanu (5G). Umsebenzi wayo uhlanganisa ukwakhiwa kwezichasiselo zamanethiwekhi e-GSM, UMTS kanye ne-LTE, ukusungula amazinga okusebenza kwezinhlelo zokuxhumana ezingenazintambo.
I-3GPP isebenza ngokubambisana nezinhlangano ezimbalwa zesifunda zokumisa ezisuka e-Asia, eMelika naseYurophu. Imisebenzi yabo ihlanganisa ukugunyaza izinhloso zephrojekthi, ukuchaza izidingo zobuchwepheshe, kanye nokuhlela amazinga abe yizinguqulo ezithile ezibizwa ngokuthi. Ukukhululwa Kwe.
Imiyalo ye-AT kumongo we-3GPP
I-Los Imiyalo ye-AT (Imiyalo ye-AT) iyisethi yemiyalo esetshenziselwa ukulawula amatheminali eselula namamojula okuxhumana ngokusebenzisa ukuxhumana kwe-serial. Le miyalo ivumela ukufinyelela emisebenzini ehlukahlukene yedivayisi, efana nokucushwa kwenethiwekhi, ukuphathwa kwekholi, nokuthumela imilayezo ye-SMS.
Ngaphakathi komongo we-3GPP, imiyalo ye-AT isetshenziselwa:
- Lungiselela futhi uphathe amanethiwekhi e-GSM, UMTS kanye ne-LTE.
- Hlola ulwazi mayelana nesimo sedivayisi nokuxhumeka kwayo.
- Thumela futhi wamukele i-SMS nemilayezo yedatha.
- Phatha izikhathi zedatha noxhumo lwe-inthanethi.
Ukwakheka nokusebenza kwemiyalo ye-AT
Ifomethi ye- Imiyalo ye-AT kulandela isakhiwo esithile:
- Yonke imiyalo iqala ngesiqalo AT.
- Imiyalo ingaba lula noma ihlanganise nemingcele eyengeziwe.
- Amadivayisi aphendula ngamakhodi esimo abonisa impumelelo noma iphutha.
Isibonelo esiyisisekelo somyalo we-AT:
I-AT+CSQ
Lo myalo ubuza ikhwalithi yesiginali kudivayisi.
Imiyalo emikhulu ye-3GPP AT
Ngezansi eminye yemiyalo esetshenziswa kakhulu:
- AT+CGDCONT: Ilungiselela amapharamitha wokuqukethwe kwedatha yephakethe.
- AT+CGACT: Yenza kusebenze noma kungasebenzi okuqukethwe kwedatha.
- AT+CREG: Hlola isimo sokubhaliswa kunethiwekhi.
- I-AT+CSQ: Ibuyisela ikhwalithi yesiginali.
Izinguqulo ze-3GPP nokuziphendukela kwemvelo kwazo
izindinganiso I-3GPP Zihlelwe zaba izinguqulo noma Ukukhululwa Kwe. Inguqulo ngayinye ihlanganisa ukuthuthukiswa nezici ezintsha zokuvela kwamanethiwekhi eselula. Lokhu kuguquka kuye kwavumela ukuqaliswa kwemiyalo emisha nezici ezibalulekile ekuthuthukiseni ukuxhumana. Isibonelo, esikhathini esidlule, imiyalo yayilinganiselwe, kodwa ngokukhululwa ngakunye, amakhono amasha kanye nokuthuthukiswa kokusebenza kahle kokuxhumeka kuye kwanezelwa.
Ezinye izinguqulo eziphawulekayo:
| I-Versión | Unyaka | Izici |
|---|---|---|
| Rel. 99 | 2000 | Ukuvela kwe-UMTS. |
| Rel. 6 | 2004 | Ukuhlanganiswa namanethiwekhi we-WiFi kanye ne-HSUPA. |
| Rel. 8 | 2008 | Ukwethulwa kwe-LTE. |
| Rel. 10 | 2011 | Ukuthuthukiswa kwe-LTE-Advanced. |
Ukubaluleka kwemiyalo ye-AT kumanethiwekhi eselula
Imiyalo ye-AT idlala indima ebalulekile ekulawuleni nasekusebenziseni amanethiwekhi eselula. Ngale miyalo, opharetha nabathuthukisi bangakwazi lungisa amadivayisi ukuthuthukisa ukusebenza kahle ku ukudluliswa kwedatha, nciphisa ukubambezeleka futhi uthuthukise ukuxhumana. Lokhu kubaluleke kakhulu ezindaweni lapho ukuxhumana kubaluleke khona, njengasezimbonini zokusebenza noma kumadivayisi abathengi adinga ukusebenza okuqhubekayo.
Uma isetshenziswa kumamojula okuxhumana, imiyalo ye-AT ivumela amadivayisi ukuthi axhumane nenethiwekhi kahle, aqinisekise ukuhambisana nezizukulwane ezihlukene zobuchwepheshe beselula. Kulabo abathanda ukufunda kabanzi mayelana nokuphathwa kwedivayisi kuzo zonke izinkundla, ungahlola Imiyalo yezwi engcono kakhulu ku-WhatsApp engahambisana nokuphathwa kwedivayisi ngemiyalo.
Ngokunjalo, ukusetshenziswa kwemiyalo ye-AT kuphinde kube ukhiye ekujwayelaneni nobuchwepheshe obusafufusa, okuvumela abathuthukisi ukuthi bathuthukise izinhlelo zabo zokusebenza namasevisi ngokusekelwe kukhwalithi yesiginali neminye imingcele yenethiwekhi.
Isibonelo esisebenzayo sokusebenzisa imiyalo ye-AT
Ake sithi uchwepheshe we-telecom udinga ukumisa imojuli ye-LTE ukuze axhume kunethiwekhi ethile. Ungasebenzisa ukugeleza komyalo okulandelayo:
AT+CGDCONT=1,"IP","internet.apn" AT+CGACT=1,1 AT+CREG?
Leli sethi lemiyalo lisungula iphrofayela yokuxhumana, lenze kusebenze okuqukethwe kwedatha, futhi libuze isimo sokubhaliswa kwenethiwekhi. Le nqubo imele ukusebenzisana kwansuku zonke okwenzeka ekuphatheni amanethiwekhi namadivayisi asetshenziswa 3GPP AT imiyalo.
Imiyalo ye-3GPP AT ingamathuluzi abalulekile okumisa nokuphatha amanethiwekhi eselula, asetshenziswa kuzo zombili izindawo zezimboni kanye namadivayisi abathengi. Ngokuziphendukela kwabo ezinguqulweni ezahlukene ze-3GPP, baye bavumela ukuxhumana okungenantambo ukuba kuthuthukiswe, kube lula ukuphathwa kokuxhumana kanye nokwenza ngcono ukusebenza kahle ekudluliselweni kwedatha.
