Systems and methods for downlink power control and scheduling in a wireless network

A centralized controller in a wireless network, comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to:
• receive long term channel statistics collected during a first instance of a periodic time interval;
• identify a plurality of scheduling scenarios at least some of which occurring during the first instance of the periodic time interval;
• generate a set of possible power patterns in accordance with the long term channel statistics, wherein each possible power pattern in the set of possible power patterns provides an optimal solution for a unique one of the plurality of scheduling scenarios;
• narrow the set of possible power patterns into a set of commonly used power patterns;
• and
• select one or more power patterns from the set of commonly used power patterns, wherein the one or more selected power patterns are implemented in the network during a second instance of the periodic time interval.

A method for facilitating dynamic adaptive fractional frequency reuse (FFR) in a wireless network, the method comprising:

• receiving long term channel statistics obtained over an extended period in the wireless network;
• identifying a plurality of common scheduling scenarios observed during the extended period;
• generating a table of optimal power patterns in accordance with the long term channel statistics, wherein the table of optimal power patterns comprises a unique power pattern for each of the plurality of common scheduling scenarios;
• and
• providing the table of optimal power patterns to one or more devices in the network, wherein the table of optimal power patterns is used by the one or more devices to dynamically select power patterns in accordance with detected scheduling scenarios in the wireless network.

An apparatus comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to:
• receive long term channel statistics obtained over an extended period in a wireless network;
• identify a plurality of common scheduling scenarios observed during the extended period;
• and
• generate a table of optimal power patterns in accordance with the long term channel statistics, wherein the table of optimal power patterns comprises a unique power pattern for each of the plurality of common scheduling scenarios, wherein the table of optimal power patterns is used by one or more devices in the wireless network to dynamically select power patterns in accordance with detected scheduling scenarios in the wireless network.