Patent ID: 9392556
Filing Date: 2016-07-12
CPC Classification: H04L,H04W,Y02D

Claim Text:
1. A method for reporting a power headroom (PH) by a user equipment (UE) in a wireless communication system, the method comprising: checking whether a first sub-frame for a frame for a first serving cell is used for an uplink (UL) transmission or a downlink (DL) transmission; checking whether a second sub-frame for a second serving cell is used for the UL transmission or the DL transmission, wherein the first sub-frame for the first serving cell and the second sub-frame for the second serving cell are transmitted at a same time; if the first sub-frame for the first serving cell is used for the DL transmission and the second sub-frame for the second serving cell is used for the UL transmission, configuring a power headroom report (PHR), wherein the PHR does not include a first power headroom (PH) field, which is used for simultaneous transmission on a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH), for the first serving cell, wherein the PHR does not include a maximum transmit power of the UE, which is used for transmission on the PUCCH, for the first serving cell, wherein the PHR includes a second PH field, which is used for transmission on the PUSCH, for the first serving cell, and wherein the PHR includes a third PHR field, which is used for a transmission on the PUSCH, for the second serving cell; and transmitting the PHR to a base station.