Signal transmission power adjustment in a wireless device
Wireless communications are described. A wireless device may be configured to transmit a first signal via a first cell group that may overlap in time with a second signal via a second cell group. The wireless device may adjust a signal transmission power of at least one of the first signal or the second signal. Additionally or alternatively, the wireless device may drop at least one of the first signal or the second signal. Adjusting and/or dropping at least one of the first signal or the second signal may be based on the overlap in time of these signals satisfying a duration threshold and a total power to transmit the first signal and the second signal exceeding a power threshold.
1. A method comprising:
receiving, by a wireless device, configuration parameters of a first cell group and a second cell group, wherein:
uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and
uplink transmission timing associated with the second cell group is based on a second cell of the second cell group; and
transmitting a first signal in a first time interval of the first cell group, wherein the first signal overlaps, in time during an overlap period, with a scheduled transmission of a second signal in a second time interval of the second cell group, and wherein a signal transmission power of the first signal, during the overlap period and during a non-overlap period, is reduced based on a power value exceeding a maximum transmission power and a duration of the overlap period satisfying a duration threshold.
2. The method of claim 1 , wherein the transmitting the first signal comprises transmitting the first signal via one or more of:
a physical uplink control channel; or
a physical uplink shared channel.
3. The method of claim 2 , further comprising transmitting the second signal via one or more of:
a physical uplink control channel; or
a physical uplink shared channel.
4. The method of claim 1 , further comprising transmitting the second signal.
5. The method of claim 1 , wherein the transmitting the first signal comprises transmitting the first signal via a random access channel.
6. The method of claim 1 , wherein the maximum transmission power comprises a preconfigured maximum transmission power.
7. The method of claim 1 , wherein the power value represents a combined transmission power associated with transmission of the first signal and the second signal.
8. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, configure the wireless device to:
receive configuration parameters of a first cell group and a second cell group, wherein:
uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and
uplink transmission timing associated with the second cell group is based on a second cell of the second cell group; and
transmit a first signal in a first time interval of the first cell group, wherein the first signal overlaps, in time during an overlap period, with a scheduled transmission of a second signal in a second time interval of the second cell group, and wherein a signal transmission power of the first signal, during the overlap period and during a non-overlap period, is reduced based on a power value exceeding a maximum transmission power and a duration of the overlap period satisfying a duration threshold.
9. The wireless device of claim 8 , wherein the instructions, when executed by the one or more processors, configure the wireless device to transmit the first signal via one or more of:
a physical uplink control channel; or
a physical uplink shared channel.
10. The wireless device of claim 9 , wherein the instructions, when executed by the one or more processors, configure the wireless device to transmit the second signal via one or more of:
a physical uplink control channel; or
a physical uplink shared channel.
11. The wireless device of claim 8 , wherein the instructions, when executed by the one or more processors, configure the wireless device to transmit the second signal.
12. The wireless device of claim 8 , wherein the instructions, when executed by the one or more processors, configure the wireless device to transmit the first signal via a random access channel.
13. The wireless device of claim 8 , wherein the maximum transmission power comprises a preconfigured maximum transmission power.
14. The wireless device of claim 8 , wherein the power value represents a combined transmission power associated with transmission of the first signal and the second signal.
15. A non-transitory computer-readable medium storing instructions that, when executed, configure a wireless device to:
receive configuration parameters of a first cell group and a second cell group, wherein:
uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and
uplink transmission timing associated with the second cell group is based on a second cell of the second cell group; and
transmit a first signal in a first time interval of the first cell group, wherein the first signal overlaps, in time during an overlap period, with a scheduled transmission of a second signal in a second time interval of the second cell group, and wherein a signal transmission power of the first signal, during the overlap period and during a non-overlap period, is reduced based on a power value exceeding a maximum transmission power and a duration of the overlap period satisfying a duration threshold.
16. The non-transitory computer-readable medium of claim 15 , wherein the instructions, when executed, configure the wireless device to transmit the first signal via one or more of:
a physical uplink control channel; or
a physical uplink shared channel.
17. The non-transitory computer-readable medium of claim 16 , wherein the instructions, when executed, configure the wireless device to transmit the second signal via one or more of:
a physical uplink control channel; or
a physical uplink shared channel.
18. The non-transitory computer-readable medium of claim 15 , wherein the instructions, when executed, configure the wireless device to transmit the second signal.
19. The non-transitory computer-readable medium of claim 15 , wherein the instructions, when executed, configure the wireless device to transmit the first signal via a random access channel.
20. The non-transitory computer-readable medium of claim 15 , wherein the maximum transmission power comprises a preconfigured maximum transmission power.
21. The non-transitory computer-readable medium of claim 15 , wherein the power value represents a combined transmission power associated with transmission of the first signal and the second signal.
22. A system comprising:
a base station; and
a wireless device,
wherein the base station is configured to transmit configuration parameters of a first cell group and a second cell group, wherein:
uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and
uplink transmission timing associated with the second cell group is based on a second cell of the second cell group, and
wherein the wireless device is configured to:
receive the configuration parameters; and
transmit a first signal in a first time interval of the first cell group, wherein the first signal overlaps, in time during an overlap period, with a scheduled transmission of a second signal in a second time interval of the second cell group, and wherein a signal transmission power of the first signal, during the overlap period and during a non-overlap period, is reduced based on a power value exceeding a maximum transmission power and a duration of the overlap period satisfying a duration threshold.
23. The system of claim 22 , wherein the wireless device is configured to transmit the first signal via one or more of:
a physical uplink control channel; or
a physical uplink shared channel.
24. The system of claim 22 , wherein the wireless device is configured to transmit the second signal via one or more of:
a physical uplink control channel; or
a physical uplink shared channel.
25. The system of claim 22 , wherein the wireless device is configured to transmit the first signal via a random access channel.
26. The system of claim 22 , wherein the maximum transmission power comprises a preconfigured maximum transmission power.
27. The system of claim 22 , wherein the power value represents a combined transmission power associated with transmission of the first signal and the second signal.