Capacity increasing method for CDMA mobile communication system

The method of increaisng capacity of CDMA mobile communication system includes: counting the present system load; triggering the dynamic system capacity regulation in case of overload; and maintaining or restoring the transmission rate of data service in case of underload. The relationshiop between the present transmission rate R' after regulation and the transmission rate R before regulation is 2x(1-Q)xR, where Q is the present percent load. The regulated data service incldues mobile station user's transmission rate, and the transmission rate of some data service or present maximum-power data service.