INTERFERENCE MITIGATION BY TRANSMITTING ON SECOND, LOWER POWER LEVEL Russian patent published in 2013 - IPC H04W16/16 

FIELD: radio engineering, communication.

SUBSTANCE: first base station may be assigned one or more carriers among multiple carriers available for communication. A second base station may be assigned one or more carriers not assigned to the first base station. Each base station may communicate on each assigned carrier at a first (e.g., full) transmit power level and may communicate on each unassigned carrier at a second (e.g., lower) transmit power level lower. The first and second base stations may belong to different power classes or support different association types. In another aspect, control information may be sent on a designated carrier to support communication on multiple carriers. In yet another aspect, a base station may broadcast status information indicating the status of carriers.

EFFECT: use of different transmit power levels for different carriers enables to mitigate interference and increase overall efficiency.

39 cl, 18 dwg