An approach for resource allocation in a wireless communication network including a sender, a relay station and a receiver in case of a retransmission of information from the relay station to the receiver is described, wherein a resource necessary for retransmission is determined on the basis of the relayed channel and the relay function. The maximum number of correctly decoded transport blocks within a reporting period is determined. The curvature correction circuitry is coupled to the reference circuit output and comprises at least one additional complementary to temperature component. A cam housing rotatably supports the first cam shaft on the cylinder head. 2103; and TR20, wherein Lc represents the length of a flat portion in the center of the roll, Wmin represents the minimum width of a steel strip, R represents the inclination of tapered portions disposed at two sides of the roll, and TR represents the radius of curvature of boundaries between the flat portion and the tapered portions. 5 is continuously withdrawn from the flasher.