Rukunin mitar sadarwa na manyan kamfanonin sadarwa a ƙasashe daban-daban na duniya-1

1. China
Akwai manyan kamfanoni guda hudu a kasar Sin,
Su ne China Mobile, China Unicom, China Telecom, da China Broadcast Network.
Akwai nau'ikan mitar GSM guda biyu, wato DCS1800 da GSM900.
Akwai nau'ikan mitar WCDMA guda biyu, wato Band 1 da Band 8.
Akwai nau'ikan mitar CDMA2000 guda biyu, wato BC0 da BC6.
Akwai nau'ikan mitar TD-SCDMA guda biyu, wato Band 34 da Band 39.
Akwai nau'ikan mitar LTE 6,
Su ne: Band 1, Band 3, Band 5, Band 39, Band 40, da Band 41.
Akwai nau'ikan mitar NR guda huɗu,
N41, N77, N78, da N79, daga cikinsu N79 ba a amfani da su a yanzu.

2. Hong Kong, China
Akwai manyan ma'aikata guda huɗu a Hong Kong, China (ban da masu aiki na kama-da-wane),
Su ne China Mobile (Hong Kong), Hong Kong Telecom (PCCW), Hutchison Whampoa, da Smartone.
Akwai nau'ikan mitar GSM guda biyu, wato DCS1800 da EGSM900.
Akwai nau'ikan mitar WCDMA guda uku, wato: Band 1, Band 5, da Band 8.
Akwai band ɗin mitar CDMA2000 guda ɗaya, wato BC0.
Akwai nau'ikan mitar LTE guda huɗu, wato Band 3, Band 7, Band 8, da Band 40.

3. Amurka
Akwai jimillar manyan ma'aikata 7 a cikin Amurka,
Su ne: AT&T, T-Mobile, Sprint, Verizon, US Cellular, C Spire Wireless, Shenandoah Telecommunications (Shentel).
Akwai rukunin mitar GSM guda ɗaya, wato PCS1900.
Akwai nau'ikan mitar cdmaOne guda biyu, wato BC0 da BC1.
Akwai nau'ikan mitar WCDMA guda uku, wato Band 2, Band 4, da Band 5.
Akwai nau'ikan mitar CDMA2000 guda uku, wato BC0, BC1, da BC10.
Akwai nau'ikan mitar LTE 14,
Sune: Band 2, Band 4, Band 5, Band 12, Band 13, Band 14, Band 17, Band 25, Band 26, Band 29, Band 30, Band 41
Banda 66, Banda 71.

4. UK
Akwai manyan ma'aikata guda huɗu a cikin Burtaniya,
Su ne: Vodafone_ UK, BT (ciki har da EE), Hutchison 3G UK (Birtaniya Uku), O2.
Akwai nau'ikan mitar GSM guda biyu, wato DCS1800 da EGSM900.
Akwai nau'ikan mitar WCDMA guda biyu, wato Band 1 da Band 8.
Akwai nau'ikan mitar LTE guda 5, wato: Band 1, Band 3, Band 7, Band 20, da Band 38.

5. Japan
Akwai manyan kamfanoni guda uku a Japan, wato KDDI, NTT DoCoMo, da SoftBank.
Akwai nau'ikan mitar WCDMA guda 6, wato: Band 1, Band 6, Band 8, Band 9, Band 11, da Band 19.
Akwai nau'ikan mitar CDMA2000 guda biyu, wato BC0 da BC6.
Akwai nau'ikan mitar LTE guda 12, wato: Band 1, Band 3, Band 8, Band 9, Band 11, Band 18, Band 19, Band 21, Band 26, Band 28, Band 41, da Band 42.

Lab Gwajin BTF cibiyar gwaji ce da Ma'aikatar Ba da Haɗin Kai ta Ƙasar Sin ta Ƙaddamar da Ƙimar Daidaitawa (CNAS), lamba: L17568. Bayan shekaru na ci gaba, BTF yana da dakin gwaje-gwajen dacewa na lantarki, dakin gwaje-gwajen sadarwa mara waya, dakin gwaje-gwaje na SAR, dakin gwaje-gwaje na aminci, dakin gwaje-gwajen aminci, dakin gwajin baturi, gwajin sinadarai da sauran dakunan gwaje-gwaje. Yana da cikakkiyar dacewa ta lantarki, mitar rediyo, amincin samfur, amincin muhalli, nazarin gazawar kayan aiki, ROHS/REACH da sauran damar gwaji. Lab Gwajin BTF yana sanye da ƙwararru kuma cikakkun wuraren gwaji, ƙwararrun ƙwararrun ƙwararrun gwaji da ƙwararrun takaddun shaida, da ikon warware matsaloli daban-daban masu rikitarwa da takaddun shaida. Muna bin ka'idodin jagora na "adalci, rashin son kai, daidaito, da tsauri" kuma muna bin ƙa'idodin TS EN ISO / IEC 17025 gwajin da tsarin kula da dakin gwaje-gwaje don sarrafa kimiyya. Mun himmatu wajen samarwa abokan ciniki sabis mafi inganci. Idan kuna da wasu tambayoyi, da fatan za ku iya tuntuɓar mu a kowane lokaci.