Google Location Service Got Lost In China

Whenever I turn the Location Service on my phone to either “High Accuracy” or “Battery Saving” mode, Google scans the Wi-Fi network “CMCC-EDU” and then got confused itself, making me travelling among many universities who have the same Wi-Fi SSID around the country. Hefei, Chongqing, just not in Chengdu any more. 🙁 How can I solve this problem or can I just simply turn off the Wi-Fi scanning in Google Location Service? Help.

BTW, comments are always appreciated:)