Method and apparatus for determining transmission power of uplink control channel in wireless communication system

摘要

Disclosed are a method for determining the transmission power of an uplink control channel of a terminal which has been assigned, by a base station, two cells that have different UL-DL configurations, and an apparatus using the method. The method comprises: choosing a larger value between N1, the number of downlink subframes that correspond to subframe n of a first cell having a first UL-DL configuration, and N2, the number of downlink subframes that correspond to subframe n of a second cell having a second UL-DL configuration; and determining a parameter value based on the chosen value, wherein the parameter determines the transmission power of an uplink control channel which is transmitted in subframe n.

主权项

1. A method for determining transmit power of an uplink (UL) control channel of a user equipment (UE) to which two cells having different UL-downlink (DL) configurations are assigned, the method comprising:
determining, by the UE, a maximum value M between N1 and N2, wherein N1 is a number of downlink subframes associated with a subframe n of a first cell having a first UL-DL configuration, and wherein N2 is a number of downlink subframes associated with a subframe n of a second cell having a second UL-DL configuration; determining, by the UE, a parameter value based on the maximum value M; and transmitting, by the UE, the UL control channel in the subframe n of the first cell at a transmit power determined based on the parameter value, wherein if the maximum value M is 3 or 4, the parameter value is either 2 or 4based on whether or not a data channel or a control channel indicating a semi-persistent scheduling (SPS) release is received by the UE in a subframe n-k of only one cell between the first cell and the second cell, and wherein n, M, k, N1, and N2 are integers greater than or equal to 0.