A method performed by a User Equipment, in the following also referred to as UE, the method comprising: receiving an uplink, in the following also referred to as UL, grant from a network, wherein the UL grant is indicative of a first Physical Uplink Shared Channel, in the following also referred to as PUSCH, transmission on a first Transmission/Reception Point, in the following also referred to as TRP, of a first cell of the network; and a second PUSCH transmission on a second TRP of the first cell; characterized by: transmitting a Power Headroom Reporting, in the following also referred to as PHR, Medium Access Control, in the following also referred to as MAC, Control Element, in the following also referred to as CE, to the network, wherein: the PHR MAC CE is indicative of: a first power headroom, in the following also referred to as PH, associated with the first TRP, computed based on the first PUSCH transmission; and a second PH, associated with the second TRP, computed based on a first reference PUSCH transmission; and wherein the method further comprises: determining, based on a timing of transmitting the first PUSCH transmission and a timing of transmitting the second PUSCH transmission, whether to use a real PUSCH transmission or to use a reference PUSCH transmission to compute the first PH and the second PH, respectively, wherein the UE determines to use the first PUSCH transmission to compute the first PH based on a determination that the first PUSCH transmission is performed before transmitting the PHR MAC CE or performed in a first slot that overlaps with a second slot for transmitting the PHR MAC CE, and the UE determines to use the first reference PUSCH transmission to compute the second PH based on a determination that the second PUSCH transmission is performed after transmitting the PHR MAC CE. receiving an uplink, in the following also referred to as UL, grant from a network, wherein the UL grant is indicative of a first Physical Uplink Shared Channel, in the following also referred to as PUSCH, transmission on a first Transmission/Reception Point, in the following also referred to as TRP, of a first cell of the network; and a second PUSCH transmission on a second TRP of the first cell; a first Physical Uplink Shared Channel, in the following also referred to as PUSCH, transmission on a first Transmission/Reception Point, in the following also referred to as TRP, of a first cell of the network; and a second PUSCH transmission on a second TRP of the first cell; characterized by: transmitting a Power Headroom Reporting, in the following also referred to as PHR, Medium Access Control, in the following also referred to as MAC, Control Element, in the following also referred to as CE, to the network, wherein: the PHR MAC CE is indicative of: a first power headroom, in the following also referred to as PH, associated with the first TRP, computed based on the first PUSCH transmission; and a second PH, associated with the second TRP, computed based on a first reference PUSCH transmission; and wherein the method further comprises: determining, based on a timing of transmitting the first PUSCH transmission and a timing of transmitting the second PUSCH transmission, whether to use a real PUSCH transmission or to use a reference PUSCH transmission to compute the first PH and the second PH, respectively, wherein the UE determines to use the first PUSCH transmission to compute the first PH based on a determination that the first PUSCH transmission is performed before transmitting the PHR MAC CE or performed in a first slot that overlaps with a second slot for transmitting the PHR MAC CE, and the UE determines to use the first reference PUSCH transmission to compute the second PH based on a determination that the second PUSCH transmission is performed after transmitting the PHR MAC CE. transmitting a Power Headroom Reporting, in the following also referred to as PHR, Medium Access Control, in the following also referred to as MAC, Control Element, in the following also referred to as CE, to the network, wherein: the PHR MAC CE is indicative of: a first power headroom, in the following also referred to as PH, associated with the first TRP, computed based on the first PUSCH transmission; and a second PH, associated with the second TRP, computed based on a first reference PUSCH transmission; and a first power headroom, in the following also referred to as PH, associated with the first TRP, computed based on the first PUSCH transmission; and a second PH, associated with the second TRP, computed based on a first reference PUSCH transmission; and wherein the method further comprises: determining, based on a timing of transmitting the first PUSCH transmission and a timing of transmitting the second PUSCH transmission, whether to use a real PUSCH transmission or to use a reference PUSCH transmission to compute the first PH and the second PH, respectively, wherein the UE determines to use the first PUSCH transmission to compute the first PH based on a determination that the first PUSCH transmission is performed before transmitting the PHR MAC CE or performed in a first slot that overlaps with a second slot for transmitting the PHR MAC CE, and the UE determines to use the first reference PUSCH transmission to compute the second PH based on a determination that the second PUSCH transmission is performed after transmitting the PHR MAC CE.