Patent ID: 7194281

Claim:
A method for synchronization control of forward link transmitting power during soft handoff in mobile communication systems, wherein the mobile communication system includes base stations (BS) involved in soft handoff, mobile stations (MS) and a base station controller (BSC), and said method comprising the steps of: a) determining the current transmitting power TX(i) in the forward link of the base station involved in soft handoff and obtaining the reverse link signal; b) determining the reception quality of reverse links directly from the obtained reverse link signal; c) determining the best base station BTS(x) based on the reception quality of reverse links; d) deciding whether adjustment of forward link transmitting power is required according to the current transmitting power TX(x) in the forward link corresponding to the best base station BTS(x), and e) deciding whether adjustment of power control parameters is required according to the number of the base stations involved in soft handoff and whether the system time of the base stations arrives at the end of a N frame period.