Patent ID: 9749893
Date: 2017-08-29
CPC Classifications: H04B,H04L,H04W

Claim:
1. An apparatus of a first access point (AP) configured for coordinated power allocation, the apparatus comprising: memory; and processing circuity coupled to the memory, configured to: determine first channel state information (CSI) for a first channel between the first AP and a first station, the first CSI based on a communication between the first station and the first AP; determine second CSI for a second channel between the first AP and a second station, the second CSI determined based on a communication between the second station and a second AP, the first and second channels comprising subcarriers; calculate an expected signal-to-interference-plus-noise ratio (SINR) for the first station based on the first CSI, the second CSI and an initial subcarrier power allocation for the first station; calculate an expected SINR for the second station based on the first CSI, the second CSI and an initial subcarrier power allocation for the second station; perform an iterative power allocation process to determine a final subcarrier power allocation for the first station and a final subcarrier power allocation for the second station, the final subcarrier power allocations based on the initial subcarrier power allocations and the expected SINRs, the iterative power allocation process to increase aggregate throughput; provide information indicative of the final subcarrier power allocation for the second station to the second AP for a second transmission by the second AP to the second station; and configure transceiver circuitry of the first AP for a first transmission to the first station, the transceiver circuitry configured to set subcarrier transmit power levels based on the final subcarrier power allocation for the first station, the first transmission being a multiple-input multiple output (MIMO) transmission.