"The preference function fk for a transmission channel k may be of the form: f k =f(u, d k , z k , h k , c k , CQIm k , CQIe k , CQIS k,. . . ,) Here, u is a parameter that describes the general status of the transmission queue, and the remaining parameters are specific for the transmission channel k=1, . . . ,K. Thus dk is the delay experienced by transmission channel k, i.e. the time that the nex" . . . . .