Patent ID: 6151508
Filing Date: 2000-11-21
Classification: H04W

Abstract:
A method for controlling a power output level from a mobile station to a base station in a cellular system, said method comprising the steps of:(i) setting a predetermined threshold E.sub.b /N.sub.o ratio having a maximum value and a minimum value in said system parameters;(j) measuring a E.sub.b /N.sub.o ratio from said mobile station;(k) comparing said measured E.sub.b /N.sub.o ratio with said predetermined threshold E.sub.b /N.sub.o ratio;(l) in the event that said measured E.sub.b /N.sub.o ratio is greater than said predetermined threshold E.sub.b /N.sub.o ratio, ordering said mobile station to decrease its transmit power;(m)in the event that said measured E.sub.b /N.sub.o ratio is not greater than said predetermined threshold E.sub.b /N.sub.o ratio, ordering said mobile station to increase its transmit power;(n) detecting the signal quality in a forward link to determine whether a good frame is received in one frame duration;(o) in the event that said good frame is not received in said one frame duration, returning to said step (b) of measuring the value of E.sub.b /N.sub.o from a mobile until said good frame is received in said one frame duration; and,(p) in the event that said good frame is received in said one frame duration, measuring a new E.sub.b /N.sub.o ratio and establishing said newly measured E.sub.b /N.sub.o value as a new predetermined threshold E.sub.b /N.sub.o ratio and returning to said step (b).