Patent ID: 8538443
Filing Date: 2013-09-17
Classification: H04W

Abstract:
1. A method for fractional frequency reuse in a communication network, the method comprising: defining a plurality of fractional frequency reuse modes for wireless communication, each of the modes being associated with a corresponding group of wireless communication tones assigned to one of a plurality of power levels; establishing communication with at least one mobile terminal in a first sector using a fractional frequency reuse mode from the plurality of fractional frequency reuse modes; detecting a coverage problem with communication with at least one of the mobile terminals in the first sector, detecting a coverage problem including determining that a quantity of data for communication with a mobile terminal approximately at a cell edge of the first sector exceeds a predetermined threshold; and notifying a base station associated with a second sector to change communication within the second sector to a different mode from the plurality of fractional frequency reuse modes so that a power level of a first group of wireless communication tones decreases from a first power level to a second power level and so that a power level of a second group of wireless communication tones remains the same.