| 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 |
| 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.
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