Systems and methods for intelligently assigning a channel to a device
being used by a mobile user in a power controlled, wireless
communications system by minimizing the difference between a mobile
user's received signal power and the minimum received signal power of a
current user on a candidate carrier frequency. Each carrier frequency
within a cell is examined to determine whether it has at least one
current user assigned to a channel and also has at least one unoccupied
channel. For each carrier frequency that meets both of these
requirements, a channel quality metric is obtained for each occupied
channel. The carrier frequencies are pruned down to a subset of candidate
carrier frequencies using the channel quality metrics. Finally, a channel
within the set of candidate carrier frequencies is selected by computing
a cost function based on the received signal power of the mobile user and
the received signal power of each occupied channel.