Patent ID: 8699391
Filing Date: 2014-04-15
Classification: H04W

Abstract:
1. A method of reporting power headroom for a User Equipment (UE), the method comprising the steps of: receiving at least one of power control information associated with a Physical Uplink Shared Channel (PUSCH) transmission in a subframe and power control information associated with a Physical Uplink Control Channel (PUCCH) transmission in the subframe; conditionally generating one of a first power headroom information and a second power headroom information, wherein the first power headroom information is generated by subtracting a transmit power for the PUSCH transmission from a maximum transmit power of the UE in the subframe based on the at least one of the power control information associated with the PUSCH transmission and the power control information associated with the PUCCH transmission, the second power headroom information is generated by subtracting the transmit power for the PUSCH transmission and a transmit power for the PUCCH transmission from the maximum transmit power of the UE in the subframe based on the power control information associated with the PUSCH transmission and the power control information associated with the PUCCH transmission; and conditionally transmitting one of the first power headroom information and the second power headroom information, wherein, if the UE transmits the PUSCH without the PUCCH in the subframe, the second power headroom information is generated by subtracting the transmit power for the PUSCH transmission and a transmit power for a PUCCH from the maximum transmit power of the UE in the subframe based on the power control information associated with the PUSCH transmission and power control information associated with the latest PUCCH transmission.