US 9,813,966 B1
Sub-cell power adjustment
Sungki Park, Ashburn, VA (US); Saied Kazeminejad, Ashburn, VA (US); and Senthil K. Veeraragavan, Ashburn, VA (US)
Assigned to Sprint Spectrum L.P., Overland Park, KS (US)
Filed by Sprint Spectrum LP, Overland Park, KS (US)
Filed on Sep. 11, 2013, as Appl. No. 14/23,785.
Int. Cl. H04W 36/20 (2009.01); H04W 36/30 (2009.01)
CPC H04W 36/30 (2013.01) [H04W 36/20 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of operating a communication system, comprising:
serving a first wireless device with a first sub-cell access node, the first sub-cell access node having a first coverage area that is within a coverage area of a first macro-cell access node;
serving a second wireless device with a second sub-cell access node, the second sub-cell access node having a second coverage area that is within the coverage area of the first macro-cell access node;
comparing a first signal quality indicator associated with the first sub-cell access node to a second signal quality indicator associated with the second sub-cell access node;
based on the comparison, determining that a second macro-cell access node is interfering with communication between the second sub-cell access node and the second wireless device; and
reducing a transmit power from the first macro-cell access node, wherein the transmit power from the first macro-cell access node is reduced when the first signal quality indicator associated with the first sub-cell access node indicates better signal quality than the second signal quality indicator associated with the second sub-cell access node by a threshold amount.