A method for mitigating interference across clusters of wireless transmission points, comprising: configuring, at a Down Link, DL, transmission point, a Relative Narrowband Transmit Power, RNTP, message indicating a first set of resource blocks at which the DL transmission point is set to transmit with power that is one of at a power threshold and above a power threshold and a second set of resource blocks at which the DL transmission point is set to transmit with power less than the power threshold; identifying an attribute of the DL transmission point corresponding to the RNTP message distinct from a common Cell-Identification, Cell-ID, of a Coordinated Multi Point, CoMP, cluster to which the DL transmission point pertains, the common Cell-ID also pertaining to at least one other transmission point in the CoMP cluster; and sending the RNTP message including the attribute via a backhaul link to at least one additional transmission point to enable at least one additional transmission point to schedule a wireless mobile system near a boundary for the DL transmission point on a resource block within a same frequency range as a resource block for which the DL transmission point is set to transmit with a power of less than the power threshold; characterized in that the power threshold is a first threshold if the DL transmission point corresponds to a relatively high-power transmission point and a second threshold if the DL transmission point corresponds to a relatively low-power transmission point, wherein the first and second thresholds differ from each other; and wherein the attribute comprises an indication that the DL transmission point is one of a high-power transmission point and a low-power transmission point within the CoMP cluster to which the DL transmission point belongs. configuring, at a Down Link, DL, transmission point, a Relative Narrowband Transmit Power, RNTP, message indicating a first set of resource blocks at which the DL transmission point is set to transmit with power that is one of at a power threshold and above a power threshold and a second set of resource blocks at which the DL transmission point is set to transmit with power less than the power threshold; identifying an attribute of the DL transmission point corresponding to the RNTP message distinct from a common Cell-Identification, Cell-ID, of a Coordinated Multi Point, CoMP, cluster to which the DL transmission point pertains, the common Cell-ID also pertaining to at least one other transmission point in the CoMP cluster; and sending the RNTP message including the attribute via a backhaul link to at least one additional transmission point to enable at least one additional transmission point to schedule a wireless mobile system near a boundary for the DL transmission point on a resource block within a same frequency range as a resource block for which the DL transmission point is set to transmit with a power of less than the power threshold; characterized in that the power threshold is a first threshold if the DL transmission point corresponds to a relatively high-power transmission point and a second threshold if the DL transmission point corresponds to a relatively low-power transmission point, wherein the first and second thresholds differ from each other; and wherein the attribute comprises an indication that the DL transmission point is one of a high-power transmission point and a low-power transmission point within the CoMP cluster to which the DL transmission point belongs.