REVERSE POWER CONTROL METHOD OF MOBILE COMMUNICATION SYSTEM APPLIED VARIABLE VALUE

摘要

PURPOSE: A method for controlling reverse power using variables in a mobile system is provided to rapidly and exactly execute reverse power control in a fast fading environment by applying 4 variables, or power control bits of '11', '10', '01', and '00', and increasing or decreasing the transmit power of a mobile station by +1dB or -1dB. CONSTITUTION: A base station sets up a reference SNR(Signal to Noise Ratio) to compare with the SNR of a received signal in order to effectively carry out reverse power control(S1). The base station receives a signal through a reverse traffic channel from a mobile station every 1.25ms and calculates the SNR of the received signal(S2). The base station compares the reference SNR with the calculated SNR of the received signal(S3). In case that the calculated SNR is larger than the reference SNR, the base station judges whether the calculated SNR is consecutively larger than the reference SNR(S4). If the calculated SNR is consecutively larger than the reference SNR, the base station transmits a power control bit of '11' among 4 variables to the mobile station through a forward traffic channel(S5). However, in case that the calculated SNR is not consecutively larger than the reference SNR, the base station transmits a power control bit of '10' among 4 variables to the mobile station(S6).