초록 ▼

Mobile stations in communication with several base stations in a cellular CDMA system (as when undergoing soft handoff) do not use the conventional "or of the downs" rule for assessing power control commands from base stations. Mobile stations assess the link quality of the links from the base stati

Mobile stations in communication with several base stations in a cellular CDMA system (as when undergoing soft handoff) do not use the conventional "or of the downs" rule for assessing power control commands from base stations. Mobile stations assess the link quality of the links from the base station. If any base station displays link quality above a predetermined threshold and if that base station is requesting power reduction, power is reduced by a predetermined amount, delta. Otherwise, power is adjusted up or down by an amount less than or equal to delta according to the received power control signals from each base station in conjunction with a weight determined from the signal quality of the link from each base station.

대표청구항 ▼

[ Having described the invention, what is claimed as new and secured by Letters Patent is:] [1.]1. In a wireless communication system having base stations in communication with mobile stations, and in which the base stations communicate power control commands to the mobile stations for commanding th

[ Having described the invention, what is claimed as new and secured by Letters Patent is:] [1.]1. In a wireless communication system having base stations in communication with mobile stations, and in which the base stations communicate power control commands to the mobile stations for commanding the mobile stations to adjust their transmitting power, apparatus in the mobile stations for responding to the power control commands when a mobile station is in communication with two or more base stations, the apparatus comprising:quality estimating means for producing a quality estimate of the power control command from each base station;evaluation means for determining an adjustment value determined as a function of the power control commands from the base stations and the quality estimates of the power control commands from the base stations;comparison means for determining if the quality estimate of the power control command for each base station exceeds a predetermined threshold; andpower adjusting means for decreasing the transmitting power by a predetermined amount if a command to decrease power is received from any base station from which the quality estimate of the received command exceeds said predetermined threshold, and for adjusting the transmitting power according to said adjustment value if no command to decrease power is received with quality estimate exceeding said predetermined threshold from any base station.