Patent ID: 9635618
Date: 2017-04-25
CPC Classifications: H04B,H04W

Claim:
1. A method for configuring downlink transmit power by a base station (BS) in a wireless access system supporting an environment in which the amount of uplink (UL) resources and the amount of downlink (DL) resources are dynamically changed, the method comprising: classifying a resource region to be used for downlink transmission into a plurality of resource sets to discriminate a first resource set or a second resource set, wherein the first resource set includes a downlink subframe configured on an uplink-downlink configuration of the BS, and the second resource set includes uplink subframes which are reconfigured as downlink subframes according to an amount of traffic; measuring an interference with a neighbor cell at each of the plurality of resource sets; configuring different downlink transmit (Tx) powers for the each of the plurality of resource sets, according to whether the neighbor cell performs an uplink transmission or a downlink transmission, wherein downlink transmit (Tx) power for the first resource set is configured to be proportional to a power level of a common reference signal (CRS) transmitted from a neighbor base station (BS), and wherein downlink transmit (Tx) power for the second resource set is configured by assigning an offset to the downlink transmit (Tx) power of the first resource set; and transmitting, to a user equipment (UE) a downlink signal at the configured downlink transmit (Tx) power.