A method comprising: detecting, by an access node managing an interfered cell in a cellular communication system, inter-cell interference from an interfering cell; determining whether or not interference cancellation performed for a signal received through the access node is capable of cancelling said inter-cell interference from the signal; determining whether the inter-cell interference is uplink-to-uplink type of interference or downlink-to-uplink type of interference; and controlling, (400, 402, 502, 700, 708) on a basis of a result of said determining, an uplink transmit power level of a terminal device on time-frequency resources allocated to the terminal device by: a) providing at least a first lower power control region of uplink transmit powers and a first higher power control region of uplink transmit powers for use in the presence of the uplink-to-uplink type of interference, selecting the first lower power control region if the interference cancellation is determined to be capable of cancelling the uplink-to-uplink inter-cell interference, and selecting the first higher power control region if the interference cancellation is determined not to be capable of cancelling the uplink-to-uplink inter-cell interference; b) providing at least a second lower power control region of uplink transmit powers and a second higher power control region of uplink transmit powers for use in the presence of the downlink-to-uplink type of interference, selecting the second lower power control region if the interference cancellation is determined to be capable of cancelling the downlink-to-uplink inter-cell interference, and selecting the second higher power control region if the interference cancellation is determined not to be capable of cancelling the downlink-to-uplink inter-cell interference, wherein the first lower power control region, second lower power control region, first higher power control region, and second higher power control region all define a different power control region; and selecting the uplink transmit power level of the terminal device within the selected power control region. detecting, by an access node managing an interfered cell in a cellular communication system, inter-cell interference from an interfering cell; determining whether or not interference cancellation performed for a signal received through the access node is capable of cancelling said inter-cell interference from the signal; determining whether the inter-cell interference is uplink-to-uplink type of interference or downlink-to-uplink type of interference; and controlling, (400, 402, 502, 700, 708) on a basis of a result of said determining, an uplink transmit power level of a terminal device on time-frequency resources allocated to the terminal device by: a) providing at least a first lower power control region of uplink transmit powers and a first higher power control region of uplink transmit powers for use in the presence of the uplink-to-uplink type of interference, selecting the first lower power control region if the interference cancellation is determined to be capable of cancelling the uplink-to-uplink inter-cell interference, and selecting the first higher power control region if the interference cancellation is determined not to be capable of cancelling the uplink-to-uplink inter-cell interference; b) providing at least a second lower power control region of uplink transmit powers and a second higher power control region of uplink transmit powers for use in the presence of the downlink-to-uplink type of interference, selecting the second lower power control region if the interference cancellation is determined to be capable of cancelling the downlink-to-uplink inter-cell interference, and selecting the second higher power control region if the interference cancellation is determined not to be capable of cancelling the downlink-to-uplink inter-cell interference, wherein the first lower power control region, second lower power control region, first higher power control region, and second higher power control region all define a different power control region; and a) providing at least a first lower power control region of uplink transmit powers and a first higher power control region of uplink transmit powers for use in the presence of the uplink-to-uplink type of interference, selecting the first lower power control region if the interference cancellation is determined to be capable of cancelling the uplink-to-uplink inter-cell interference, and selecting the first higher power control region if the interference cancellation is determined not to be capable of cancelling the uplink-to-uplink inter-cell interference; b) providing at least a second lower power control region of uplink transmit powers and a second higher power control region of uplink transmit powers for use in the presence of the downlink-to-uplink type of interference, selecting the second lower power control region if the interference cancellation is determined to be capable of cancelling the downlink-to-uplink inter-cell interference, and selecting the second higher power control region if the interference cancellation is determined not to be capable of cancelling the downlink-to-uplink inter-cell interference, wherein the first lower power control region, second lower power control region, first higher power control region, and second higher power control region all define a different power control region; and selecting the uplink transmit power level of the terminal device within the selected power control region.