A method in an entity (112) of wireless communication infrastructure where information is communicated in a sequence of frames (210, 220, 230), each multiple frame subframes (212, 232, 300), the method comprising grouping the least two terminals (102) of wireless communication in a first group, the method characterized by assigning the first group to less than all sub-frames constituting a first frame being, to assign a first control channel resource allocation radio at least one sub-frame allocated to the first group, the first control channel allocation radio resource allocation information includes radio resource that identifies at least one terminal (102) to which is allocated a radio resource; assign a radio resource preset for at least one terminal (102) based on an order in which the terminal is identified.