Inter-cell interference coordination for wireless communication systems

摘要

For each base station, transmit power level variables (I values) for each resource block allocated by the base station are initialized. The I values are used in a model to find sub-gradients for each base station. Neighboring base stations exchange the sub-gradients. For each base station, the base station's sub-gradient and the base station's neighbors' sub-gradients are used in the model to update the I values. Neighboring base stations then exchange the updated I values. For each base station, the base station's updated I value and the base station's neighbors' updated I values are used in the model to update the initial sub-gradients. The updated sub-gradients are then exchanged and used for another update of the I values. After a number of iterations, the I values are used to establish a transmit power level per resource block.

主权项

1. A method for managing a wireless network, the method comprising:
accessing, by a communications controller, a first value for a power level variable associated with a first resource block that is allocated by a first base station that serves a first sector of the wireless network; updating, by the communications controller, the first value for the power level variable according to an iterative process having multiple cycles, each cycle of the iterative process comprising: i) receiving a second value from a second base station that serves a second sector of the wireless network, the second value corresponding to the effect of power level for a second resource block allocated by the second base station on a measure of utility for the second sector; and ii) determining an updated value for the power level variable according to the second value; and setting, by the communications controller, a transmit power level for the first resource block according to the updated value.