Coal Mine Underground Wireless Communication System Based on CDMA2000

In view of China’s coal mine demands and underground environmental characteristics,the coal mine underground wireless communication system based on CDMA2000 is proposed,and the mine-used wireless communication system according to the system is developed sucessfully.The system achieved the identification from National Coal Mine Underground Safety Mark,and ran sucessfully in Jixi branch of Longmei Group,which achieved good social and economic benefits.