Patent ID: 7760751

Claim:
A method of a base station allocating downlink resources to a group of Distributed Resource Channel (DRCH) user devices and a group of Localized Resource Channel (LRCH) user devices in an Orthogonal Frequency Division Multiple Access (OFDMA) network, comprising the steps of: providing a utility function for each of the group of LRCH user devices and each of the group of DRCH user devices, wherein the utility function is concave and non-decreasing; providing a resource allocation objective using the utility functions of the group of LRCH user devices and the group of DRCH user devices, providing the resource allocation objective comprising optimizing a utility sum of the group of LRCH user devices based on the utility function for each of the group of LRCH user devices to produce a utility sum of the group of LRCH user devices having optimal resource allocation, and optimizing a utility sum of the group of DRCH user devices based on the utility function for each of the group of DRCH user devices to produce a utility sum of the group of DRCH user devices having optimal resource allocation; allocating the resources to the group of LRCH user devices and the group of DRCH user devices such that the resource allocation objective is met, allocating the resources comprising maximizing a sum of the utility sum of the group of LRCH user devices with an optimal resource allocation and the utility sum of the group of DRCH user devices with an optimal resource allocation; maximizing comprising adjusting a number of slots allocated to a plurality of Localized Resource Channels (LRCHs) and adjusting a number of slots allocated to a plurality of Distributed Resource Channels (DRCHs); and the base station causing the group of LRCH user devices and the group of DRCH user devices to operate according to the allocating.