An apparatus and method for minimizing a non-transmittable period where
high-speed packet data transmission is impossible. In the apparatus, a
non-transmittable period calculator receives transmission gap-related
information for a UE from a radio network controller, calculates a
transmission gap starting point based on the transmission gap-related
information, defines a period determined by excluding the downlink
transmission period from the transmission gap starting point as the
non-transmittable period, and suspends transmission of the high-speed
packet data to the UE for the non-transmittable period. A scheduler
performs scheduling on the high-speed packet data under the control of
the non-transmittable period calculator so that transmission of the
high-speed packet data to the UE is suspended for the downlink
transmission period.