I want to know about the coverage and tariff of Xining Mobile 3G network.

Xining TD-SCDMA covers densely populated urban areas. According to the "three noes" principle that China Mobile does not change the number, card or number, China Mobile's original 2G users (such as GSM, M-Zone, Shenzhouxing, Casual Travel, etc.). ) Just insert your original SIM card directly into the mobile phone supporting China Mobile 3G network (TD-SCDMA), you can use 3G network in the 3G coverage area, and automatically switch to the original 2G network when there is no 3G coverage. No matter in 3G network or 2G network, the same service still charges the same, that is, you send 1 SMS, and 3G network is 1 SMS. The original SMS package and other packages are still valid, and the charging method is completely unchanged. Therefore, no matter what the coverage of 3G network is, you won't lose money by changing a 3G mobile phone, which is equivalent to adding a 3G module to your original mobile phone. If you feel that the 3G network is not easy to use, you can set that only mobile phones are allowed to log in to the 2G network in the mobile phone settings.