A method for operating a control node for a wireless communication system comprising the steps: - creating a data frame defined by a frequency band and a time frame, comprising a plurality of data elements, - wherein each data element is defined by one of a plurality of subcarrier frequencies within said frequency band and one of a plurality of time slots within said time frame, - wherein a resource block comprises a number of data elements adjacent in time and frequency, arranged in a time-frequency grid, - wherein the data elements of the resource block are subdivided into at least a first subset and a second subset; - wherein the first subset comprises first control data for controlling a receiving node, - wherein the second subset comprises data elements of said resource block not used for control data for controlling said receiving node, and - wherein the first subset and the second subset are distributed over the time-frequency grid of the resource block and are arranged in a mixed frequency and/or timely order in the data frame; - checking whether third control data for another receiving node are to be put into the second subset; - scheduling payload data for the receiving node into the second subset if third control data are not to be put into the second subset of data elements; - wherein the first control data indicates the resource block on which the first control data are transmitted if payload data are to be transmitted in the second subset of the data elements; - transmitting the data frame to the receiving node. - creating a data frame defined by a frequency band and a time frame, comprising a plurality of data elements, - wherein each data element is defined by one of a plurality of subcarrier frequencies within said frequency band and one of a plurality of time slots within said time frame, - wherein a resource block comprises a number of data elements adjacent in time and frequency, arranged in a time-frequency grid, - wherein the data elements of the resource block are subdivided into at least a first subset and a second subset; - wherein the first subset comprises first control data for controlling a receiving node, - wherein the second subset comprises data elements of said resource block not used for control data for controlling said receiving node, and - wherein the first subset and the second subset are distributed over the time-frequency grid of the resource block and are arranged in a mixed frequency and/or timely order in the data frame; - wherein each data element is defined by one of a plurality of subcarrier frequencies within said frequency band and one of a plurality of time slots within said time frame, - wherein a resource block comprises a number of data elements adjacent in time and frequency, arranged in a time-frequency grid, - wherein the data elements of the resource block are subdivided into at least a first subset and a second subset; - wherein the first subset comprises first control data for controlling a receiving node, - wherein the second subset comprises data elements of said resource block not used for control data for controlling said receiving node, and - wherein the first subset and the second subset are distributed over the time-frequency grid of the resource block and are arranged in a mixed frequency and/or timely order in the data frame; - checking whether third control data for another receiving node are to be put into the second subset; - scheduling payload data for the receiving node into the second subset if third control data are not to be put into the second subset of data elements; - wherein the first control data indicates the resource block on which the first control data are transmitted if payload data are to be transmitted in the second subset of the data elements; - transmitting the data frame to the receiving node.