Patent ID: 7953166
Filing Date: 2011-05-31
Classification: H04L,H04W

Abstract:
1. A method of performing resource allocation in OFDM transmission, comprising the steps of: performing a partitioning of the OFDM spectrum into a plurality of predefined regions, the plurality of predefined regions comprising a number of first type regions of sub-carriers and a number of second type regions of sub-carriers for a number of OFDM transmission cells; assigning a first transmit power to the first type regions and a second transmit power to the second type regions, wherein the first transmit power is a higher transmit power than the second transmit power; allocating said resources for communication of a first given base station with a first associated user equipment in at least one first type region of sub-carriers and with a second associated user equipment in at least one second type region of sub-carriers dependent on the first and second transmit power; communicating the partitioning and the assigned first and second transmit power to base stations in the OFDM transmission system and to user equipments in operative connection with said base stations; and borrowing a number of subcarriers in the first regions of a first cell from first regions of a second cell or lending a number of subcarriers from the first regions of the second cell to the first regions of the first cell for a flexible reaction to changing frequency planning, interference conditions, traffic conditions, geographical position, and channel quality, wherein the first cell neighbours the second cell, wherein the first cell has a need for resources in its outer spatial regions, and wherein orthogonality for interference coordination is achieved by first and second type regions being mutually different from each other with respect to the transmit power.