Power control for carrier aggregation and dual connectivity operation
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information associated with identifying a first transmit power for a first carrier in a band and a second transmit power for a second carrier in the band, wherein the first transmit power and the second transmit power exceed a per-carrier group power threshold. The UE may transmit at least one of a first communication using a first scaled transmit power or a second communication using a second scaled transmit power, wherein at least one of the first transmit power or the second transmit power is scaled to form the first scaled transmit power or the second scaled transmit power in connection with the per-carrier group power threshold. Numerous other aspects are described.
1 . A user equipment (UE) for wireless communication, comprising:
memory; and
one or more processors, coupled to the memory, configured to:
receive information associated with identifying a first transmit power for a first carrier in a band and a second transmit power for a second carrier in the band, wherein the first transmit power and the second transmit power exceed a per-carrier group power threshold;
scale at least one of the first transmit power or the second transmit power:
concurrently, based at least in part on a per-frequency range power threshold and the per-carrier group power threshold,
sequentially, based at least in part on the per-frequency range power threshold and then based at least in part on the per-carrier group power threshold, or
sequentially, base at least in part on the per-carrier group power threshold and then based at least in part on the per-frequency range power threshold; and
transmit at least one of a first communication using the first scaled transmit power or a second communication using the second scaled transmit power.
2 . The UE of claim 1 , wherein the per-carrier group threshold is associated with at least one of:
a configured group of carriers,
a configured frequency band,
a configured group of frequency bands,
a power amplifier, or
a transmit chain.
3 . The UE of claim 1 , wherein the one or more processors, to further scale the at least one of the first transmit power or the second transmit power, are configured to:
scale the at least one of the first transmit power or the second transmit power based at least in part on a priority order.
4 . The UE of claim 1 , wherein the one or more processors, to further scale the at least one of the first transmit power or the second transmit power, are configured to:
scale the at least one of the first transmit power or the second transmit power based at least in part on a configured power offset.
5 . The UE of claim 1 , wherein a master cell group is associated with a first power control configuration and a secondary cell group is associated with a second power control configuration, and
wherein at least one of the first scaled transmit power or the second scaled transmit power is based at least in part on the first power control configuration or the second power control configuration.
6 . The UE of claim 5 , wherein the second power control configuration is based at least in part on the first power control configuration.
7 . The UE of claim 5 , wherein at least one of the first power control configuration or the second power control configuration is based at least in part on a timing criterion.
8 . The UE of claim 1 , wherein the first scaled transmit power or the second scaled transmit power is based at least in part on an inter-cell group power sharing threshold.
9 . A network node for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
transmit information associated with identifying a first transmit power for a first carrier in a band and a second transmit power for a second carrier in the band, wherein a sum of the first transmit power and the second transmit power exceed a per-carrier group power threshold; and
receive at least one of a first communication using a first scaled transmit power or a second communication using a second scaled transmit power,
wherein the at least one of the first transmit power or the second transmit power is scaled:
concurrently, based at least in part on a per-frequency range power threshold and the per-carrier group power threshold,
sequentially, based at least in part on the per-frequency range power threshold and then based at least in part on the per-carrier group power threshold, or
sequentially, based at least in part on the per-carrier group power threshold and then based at least in part on the per-frequency range power threshold.
10 . The network node of claim 9 , wherein the per-carrier group threshold is associated with at least one of:
a configured group of carriers,
a configured frequency band,
a configured group of frequency bands,
a power amplifier, or
a transmit chain.
11 . The network node of claim 9 , wherein the at least one of the first transmit power or the second transmit power is further scaled based at least in part on a priority order.
12 . The network node of claim 9 , wherein the at least one of the first transmit power or the second transmit power is further scaled based at least in part on a configured power offset.
13 . The network node of claim 9 , wherein a master cell group is associated with a first power control configuration and a secondary cell group is associated with a second power control configuration, and
wherein at least one of the first scaled transmit power or the second scaled transmit power is based at least in part on the first power control configuration or the second power control configuration.
14 . The network node of claim 13 , wherein the second power control configuration is based at least in part on the first power control configuration.
15 . The network node of claim 13 , wherein at least one of the first power control configuration or the second power control configuration is based at least in part on a timing criterion.
16 . The network node of claim 9 , wherein the first scaled transmit power or the second scaled transmit power is based at least in part on an inter-cell group power sharing threshold.
17 . A method of wireless communication performed by an apparatus of a user equipment (UE), comprising:
receiving information associated with identifying a first transmit power for a first carrier in a band and a second transmit power for a second carrier in the band, wherein the first transmit power and the second transmit power exceed a per-carrier group power threshold;
scaling at least one of the first transmit power or the second transmit power:
concurrently, based at least in part on a per-frequency range power threshold and the per-carrier group power threshold,
sequentially, based at least in part on the per-frequency range power threshold and then based at least in part on the per-carrier group power threshold, or
sequentially, base at least in part on the per-carrier group power threshold and then based at least in part on the per-frequency range power threshold; and
transmitting at least one of a first communication using the first scaled transmit power or a second communication using the second scaled transmit power.
18 . The method of claim 17 , wherein the per-carrier group threshold is associated with at least one of:
a configured group of carriers,
a configured frequency band,
a configured group of frequency bands,
a power amplifier, or
a transmit chain.
19 . The method of claim 17 , wherein scaling the at least one of the first transmit power or the second transmit power further comprises:
scaling the at least one of the first transmit power or the second transmit power based at least in part on a priority order.
20 . The method of claim 17 , wherein scaling the at least one of the first transmit power or the second transmit power further comprises:
scaling the at least one of the first transmit power or the second transmit power based at least in part on a configured power offset.
21 . A method of wireless communication performed by an apparatus of a network node, comprising:
transmitting information associated with identifying a first transmit power for a first carrier in a band and a second transmit power for a second carrier in the band, wherein a sum of the first transmit power and the second transmit power exceed a per-carrier group power threshold; and
receiving at least one of a first communication using a first scaled transmit power or a second communication using a second scaled transmit power,
wherein the at least one of the first transmit power or the second transmit power is scaled:
concurrently, based at least in part on a per-frequency range power threshold and the per-carrier group power threshold,
sequentially, based at least in part on the per-frequency range power threshold and then based at least in part on the per-carrier group power threshold, or
sequentially, based at least in part on the per-carrier group power threshold and then based at least in part on the per-frequency range power threshold.
22 . The method of claim 21 , wherein the per-carrier group threshold is associated with at least one of:
a configured group of carriers,
a configured frequency band,
a configured group of frequency bands,
a power amplifier, or
a transmit chain.