A method and apparatus for performing resource allocation in a communication system is provided. The method includes receiving a data frame including encapsulated data and a transmission opportunity, the data frame being divided into sub-frames which include primary resource blocks that are divided into secondary resource blocks storing the encapsulated data or the transmission opportunity, deconstructing the data frame to retrieve a portion of the encapsulated data or the transmission opportunity by determining a location of one of the sub-frames and one of the secondary resource block that included the portion of the encapsulated data or the transmission opportunity, wherein the location of the one secondary resource block is determined based on the inner boundaries.