A wireless transmit/receive unit, WTRU, comprising: a receiver; a transmitter; and a processor, the receiver and the processor configured to: receive, from a first base station, BS, a first medium access control timing advance control element, MAC TA CE, that indicates a first timing advance adjustment value; and receive, from a second BS, a second MAC TA CE that indicates a second timing advance adjustment value; the transmitter and the processor further configured to: determine, based on the first timing advance adjustment value, a first timing advance for transmitting to the first BS; determine, based on the second timing advance adjustment value, a second timing advance for transmitting to the second BS; determine, based on the first timing advance and the second timing advance, an overlap between transmission times of a first physical uplink shared channel, PUSCH, transmission to the first BS and a second PUSCH transmission to the second BS; and send the first PUSCH transmission to the first BS and the second PUSCH transmission to the second BS, wherein a first transmission power of the first PUSCH transmission or a second transmission power of the second PUSCH transmission is reduced in at least one portion of the overlap prior to transmission so that a total transmission power of the first PUSCH transmission and the second PUSCH transmission does not exceed a maximum transmission power, wherein the first PUSCH transmission and the second PUSCH transmission start at different times. a receiver; a transmitter; and a processor, the receiver and the processor configured to: receive, from a first base station, BS, a first medium access control timing advance control element, MAC TA CE, that indicates a first timing advance adjustment value; and receive, from a second BS, a second MAC TA CE that indicates a second timing advance adjustment value; receive, from a first base station, BS, a first medium access control timing advance control element, MAC TA CE, that indicates a first timing advance adjustment value; and receive, from a second BS, a second MAC TA CE that indicates a second timing advance adjustment value; the transmitter and the processor further configured to: determine, based on the first timing advance adjustment value, a first timing advance for transmitting to the first BS; determine, based on the second timing advance adjustment value, a second timing advance for transmitting to the second BS; determine, based on the first timing advance and the second timing advance, an overlap between transmission times of a first physical uplink shared channel, PUSCH, transmission to the first BS and a second PUSCH transmission to the second BS; and send the first PUSCH transmission to the first BS and the second PUSCH transmission to the second BS, wherein a first transmission power of the first PUSCH transmission or a second transmission power of the second PUSCH transmission is reduced in at least one portion of the overlap prior to transmission so that a total transmission power of the first PUSCH transmission and the second PUSCH transmission does not exceed a maximum transmission power, wherein the first PUSCH transmission and the second PUSCH transmission start at different times. determine, based on the first timing advance adjustment value, a first timing advance for transmitting to the first BS; determine, based on the second timing advance adjustment value, a second timing advance for transmitting to the second BS; determine, based on the first timing advance and the second timing advance, an overlap between transmission times of a first physical uplink shared channel, PUSCH, transmission to the first BS and a second PUSCH transmission to the second BS; and send the first PUSCH transmission to the first BS and the second PUSCH transmission to the second BS, wherein a first transmission power of the first PUSCH transmission or a second transmission power of the second PUSCH transmission is reduced in at least one portion of the overlap prior to transmission so that a total transmission power of the first PUSCH transmission and the second PUSCH transmission does not exceed a maximum transmission power, wherein the first PUSCH transmission and the second PUSCH transmission start at different times.