A method of controlling transmission power of a User Equipment, UE, the method comprising: detecting, by a processor of the UE, a blockage of at least one serving beam of the UE by at least one user; estimating, by the processor, a maximum transmission power of the UE for an uplink, UL, transmission based on the blockage; and determining, by the processor, a UL transmission power based on the estimated maximum transmission power of the UE; wherein determining the UL transmission power is characterized by calculating a positive margin and a negative margin of maximum permissible exposure, MPE, and an uplink factor, wherein the positive margin and the negative margin depend on previous UL transmission powers by the UE and the uplink factor depends on a Radio Resource Control, RRC, configuration; scaling the estimated maximum transmission power of the UE using the uplink factor and the negative margin, wherein scaling the estimated maximum transmission power includes increasing the estimated maximum transmission power by the uplink factor and multiplying the increased maximum transmission power using the negative margin; comparing the scaled maximum transmission power of the UE with a New Radio, NR, power; using the NR power for the LTL transmission if the scaled maximum transmission power is more than or equal to the NR power; and updating at least one of a power headroom and an allowed maximum power reduction metric. detecting, by a processor of the UE, a blockage of at least one serving beam of the UE by at least one user; estimating, by the processor, a maximum transmission power of the UE for an uplink, UL, transmission based on the blockage; and determining, by the processor, a UL transmission power based on the estimated maximum transmission power of the UE; wherein determining the UL transmission power is characterized by calculating a positive margin and a negative margin of maximum permissible exposure, MPE, and an uplink factor, wherein the positive margin and the negative margin depend on previous UL transmission powers by the UE and the uplink factor depends on a Radio Resource Control, RRC, configuration; scaling the estimated maximum transmission power of the UE using the uplink factor and the negative margin, wherein scaling the estimated maximum transmission power includes increasing the estimated maximum transmission power by the uplink factor and multiplying the increased maximum transmission power using the negative margin; comparing the scaled maximum transmission power of the UE with a New Radio, NR, power; using the NR power for the LTL transmission if the scaled maximum transmission power is more than or equal to the NR power; and updating at least one of a power headroom and an allowed maximum power reduction metric. calculating a positive margin and a negative margin of maximum permissible exposure, MPE, and an uplink factor, wherein the positive margin and the negative margin depend on previous UL transmission powers by the UE and the uplink factor depends on a Radio Resource Control, RRC, configuration; scaling the estimated maximum transmission power of the UE using the uplink factor and the negative margin, wherein scaling the estimated maximum transmission power includes increasing the estimated maximum transmission power by the uplink factor and multiplying the increased maximum transmission power using the negative margin; comparing the scaled maximum transmission power of the UE with a New Radio, NR, power; using the NR power for the LTL transmission if the scaled maximum transmission power is more than or equal to the NR power; and updating at least one of a power headroom and an allowed maximum power reduction metric.