A wireless communication infrastructure entity 200 and methods therein including assigning a first wireless communication terminal to one or more resources, and sending non-scheduling information to the first wireless communication terminal on an RRBP field in a downlink block based on whether information is received from the first wireless communication terminal on the assigned resource. The system is configured to allow for large area coverage with far fewer number base stations than are required with conventional two-way cellular systems. The first substrate surface has a first degree of roughness. It can be incorporated into clothing to enhance its strength to penetration by such objects and thus protect the wearer. The motor control apparatus further includes a rotational speed changing means, the rotational speed changing means changing the rotational speed of the motor by gradually varying a voltage outputted by the driver circuit from a current voltage to a target voltage on input of a control start signal. The closed-loop track has at least four different speed zones, which include a slow speed zone, a fast speed zone, an acceleration zone, and a deceleration zone.