Patent ID: 6754496
Filing Date: 2004-06-22
Classification: H04B,H04W

Abstract:
A method for disabling the transmission of downlink signals in a mobile communications network wherein a base station controller provides downlink signals to a plurality of base stations in a soft handoff mode with a mobile station, each capable of further transmitting the downlink signals to and receiving uplink signals from a mobile station while in the soft hand off mode, comprising the steps of:comparing a transmission characteristic of each downlink signal received at said mobile station; selecting a preferred downlink signal based on the measured transmission characteristic; identifying a preferred base station for transmitting a subsequent downlink signal based on the preferred downlink signal; generating and transmitting a selection message in the uplink signal indicating the preferred base station; identifying in each base station of said plurality of base stations whether said base station is the preferred base station responsive to the received uplink signal; determining in each base station whether the base station should transmit the subsequent downlink signal responsive to the identifying step; disabling in each base station, the transmission of the subsequent downlink signal received from said base station controller when the base station determines it should not transmit; and periodically reselecting the preferred downlink signal based on the measured transmission characteristic and identifying the preferred base station for transmitting the subsequent downlink signal based on the preferred downlink signal.