Enhanced uplink power control with lookahead
A UE may calculate an allocation of a transmission power for a first uplink transmission on a first uplink channel and at least one second uplink transmission on at least one second uplink channel, the transmission power being allocated in each symbol of a plurality of symbols in a slot. The UE may detect a transmission power change in the allocation of the transmission power in the slot for at least one of the first uplink transmission or the at least one second uplink transmission. The UE may determine whether to adjust the allocation of the transmission power for the at least one of the first uplink transmission or the at least one second uplink transmission to eliminate the transmission power change in the slot for the at least one of the first uplink transmission or the at least one second uplink transmission.
1. An apparatus for wireless communication, comprising:
a processing system configured to:
adjust, based on a transmission power change within a first transmission power allocation for a first transmission on a first component carrier (CC) that partially overlaps in time with a second transmission on a second CC, the first transmission power allocation to eliminate the transmission power change;
transmit, using the adjusted first transmission power allocation, the first uplink transmission on the first CC; and
transmit the second transmission on the second CC.
2. The apparatus of claim 1 , wherein the first transmission includes a first plurality of symbols associated with a first slot and a second plurality of symbols associated with the first slot, wherein the first plurality of symbols do not overlap in time with the second transmission, wherein the second plurality of symbols overlap in time with the second transmission, and wherein the transmission power change within the first transmission power allocation for the first transmission is between the first plurality of symbols and the second plurality of symbols.
3. The apparatus of claim 2 , wherein the first transmission power allocation allocates a first transmission power to the first plurality of symbols and a second transmission power to the second plurality of symbols, wherein the adjusted first transmission power allocation allocates the second transmission power to the first plurality of symbols and the second plurality of symbols, and wherein the second transmission power is less than the first transmission power.
4. The apparatus of claim 3 , wherein, to the transmit the first transmission on the first CC, the processing system is configured to transmit the first plurality of symbols and the second plurality of symbols on the first CC.
5. The apparatus of claim 3 , wherein the second transmission includes a third plurality of symbols associated with a second slot, wherein the third plurality of symbols overlap in time with the second plurality of symbols, and wherein a second transmission power allocation allocates a third transmission power to the third plurality of symbols.
6. The apparatus of claim 5 , wherein, to the transmit the second transmission on the second CC, the processing system is configured to transmit the third plurality of symbols using the second transmission power allocation.
7. The apparatus of claim 6 , wherein the third transmission power equals the second transmission power.
8. The apparatus of claim 3 , wherein, to adjust the first transmission power allocation to eliminate the transmission power change, the processing system is configured to adjust the first transmission power allocation based on a difference between the first transmission power and the second transmission power being less than a threshold.
9. The apparatus of claim 1 , wherein the first transmission includes a first set of one or more symbols associated with a first slot and a second set of one or more symbols associated with the first slot, wherein the first set of one or more symbols do not overlap in time with the second transmission, wherein the second set of one or more symbols overlap in time with the second transmission, and wherein the transmission power change within the first transmission power allocation for the first transmission is between the first set of one or more symbols and the second set of one or more symbols.
10. The apparatus of claim 9 , wherein the first transmission power allocation allocates a first transmission power to the first set of one or more symbols and a second transmission power to the second set of one or more symbols, wherein the adjusted first transmission power allocation allocates the second transmission power to the first set of one or more symbols and the second set of one or more symbols, and wherein the second transmission power is less than the first transmission power.
11. The apparatus of claim 10 , wherein, to the transmit the first transmission on the first CC, the processing system is configured to transmit the first set of one or more symbols and the second set of one or more symbols on the first CC.
12. The apparatus of claim 10 , wherein the second transmission includes a third set of one or more symbols associated with a second slot, wherein the third set of one or more symbols overlap in time with the second set of one or more symbols, and wherein a second transmission power allocation allocates a third transmission power to the third set of one or more symbols.
13. The apparatus of claim 12 , wherein, to the transmit the second transmission on the second CC, the processing system is configured to transmit the third set of one or more symbols using the second transmission power allocation.
14. The apparatus of claim 13 , wherein the third transmission power equals the second transmission power.
15. The apparatus of claim 10 , wherein, to adjust the first transmission power allocation to eliminate the transmission power change, the processing system is configured to adjust the first transmission power allocation based on a difference between the first transmission power and the second transmission power being less than a threshold.
16. The apparatus of claim 1 , wherein the apparatus is a user equipment (UE).
17. An apparatus for wireless communication, comprising:
a processing system configured to:
adjust, based on a transmission power change within a first transmission power allocation for a first transmission on a first component carrier (CC) that partially overlaps in time with a second transmission on a second CC, the first transmission power allocation to eliminate the transmission power change, wherein the first transmission includes a first plurality of symbols associated with a first slot and a second plurality of symbols associated with the first slot, wherein the first plurality of symbols do not overlap in time with the second transmission, wherein the second plurality of symbols overlap in time with the second transmission, wherein the transmission power change within the first transmission power allocation for the first transmission is between the first plurality of symbols and the second plurality of symbols, wherein the first transmission power allocation allocates a first transmission power to the first plurality of symbols and a second transmission power to the second plurality of symbols;
transmit, using the adjusted first transmission power allocation, the first uplink transmission on the first CC, wherein the adjusted first transmission power allocation allocates the second transmission power to the first plurality of symbols and the second plurality of symbols, and wherein the second transmission power is less than the first transmission power; and
transmit the second transmission on the second CC.
18. A non-transitory computer-readable medium having code stored thereon that, when executed by an apparatus, causes the apparatus to:
adjust, based on a transmission power change within a first transmission power allocation for a first transmission on a first component carrier (CC) that partially overlaps in time with a second transmission on a second CC, the first transmission power allocation to eliminate the transmission power change, wherein the first transmission includes a first plurality of symbols associated with a first slot and a second plurality of symbols associated with the first slot, wherein the first plurality of symbols do not overlap in time with the second transmission, wherein the second plurality of symbols overlap in time with the second transmission, wherein the transmission power change within the first transmission power allocation for the first transmission is between the first plurality of symbols and the second plurality of symbols, wherein the first transmission power allocation allocates a first transmission power to the first plurality of symbols and a second transmission power to the second plurality of symbols;
transmit, using the adjusted first transmission power allocation, the first uplink transmission on the first CC, wherein the adjusted first transmission power allocation allocates the second transmission power to the first plurality of symbols and the second plurality of symbols, and wherein the second transmission power is less than the first transmission power; and
transmit the second transmission on the second CC.
19. A method performed by an apparatus, comprising:
adjusting, based on a transmission power change within a first transmission power allocation for a first transmission on a first component carrier (CC) that partially overlaps in time with a second transmission on a second CC, the first transmission power allocation to eliminate the transmission power change, wherein the first transmission includes a first plurality of symbols associated with a first slot and a second plurality of symbols associated with the first slot, wherein the first plurality of symbols do not overlap in time with the second transmission, wherein the second plurality of symbols overlap in time with the second transmission, wherein the transmission power change within the first transmission power allocation for the first transmission is between the first plurality of symbols and the second plurality of symbols, wherein the first transmission power allocation allocates a first transmission power to the first plurality of symbols and a second transmission power to the second plurality of symbols;
transmitting, using the adjusted first transmission power allocation, the first uplink transmission on the first CC, wherein the adjusted first transmission power allocation allocates the second transmission power to the first plurality of symbols and the second plurality of symbols, and wherein the second transmission power is less than the first transmission power; and
transmitting the second transmission on the second CC.