Even where an IO cell requiring good characteristics is alloted to an IO slot corresponding to the uppermost standard pattern wiring, a pad can be connected to the IO slot by forming rewiring in the chip outermost peripheral area. The scheduling is done so that based on the call allocations a schedule of expected movements, accelerations and decelerations can be computed. An extension grip cover fitted to cover at least a portion of the mounting bracket provides a gripping surface thereon. Finally, a frequency of IRAT measurements in time slot zero, a downlink pilot time slot, an uplink pilot time slot, and a gap is increased.