Power control for concurrent transmissions
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may determine, when in communication with a plurality of other wireless nodes via a plurality of links of a network, a plurality of transmit powers for the plurality of links, wherein the plurality of transmit powers are selected to control inter-link interference or to satisfy a maximum transmit power criterion. The wireless node may transmit, using the plurality of transmit powers for the plurality of links, information, to the plurality of other wireless nodes, concurrently, based at least in part on determining the plurality of transmit powers for the plurality of links. Numerous other aspects are provided.
1. A method of wireless communication performed at a first wireless node, comprising:
providing, by the first wireless node, to one or more of a second wireless node or a third wireless node, and via a media access control (MAC) control element (CE), information related to a first transmit power; and
concurrently transmitting, by the first wireless node, an uplink transmission to the second wireless node based on the first transmit power and a downlink transmission to the third wireless node based on a second transmit power,
wherein the first transmit power is for the uplink transmission and is based at least in part on the information related to the first transmit power and a prioritization related to a plurality of wireless nodes that include the second wireless node and the third wireless node,
wherein the first transmit power and the second transmit power are selected to control inter-link interference or to satisfy a maximum transmit power criterion,
wherein the first transmit power is determined dynamically,
wherein the second transmit power is determined semi-statically,
wherein the second wireless node is a parent node of the first wireless node, and
wherein the third wireless node is a child node of the first wireless node.
2. The method of claim 1 , wherein the information comprises information regarding a configuration parameter related to the first transmit power.
3. The method of claim 1 , wherein the first wireless node is a wireless relay node.
4. The method of claim 1 , wherein the first wireless node communicates with the second wireless node via a first link and the first wireless node communicates with the third wireless node via a second link.
5. The method of claim 4 ,
wherein the first wireless node schedules communications on the second link, and
wherein communications on the first link are scheduled by the second wireless node.
6. The method of claim 4 ,
wherein communications on the first link are scheduled by the second wireless node, and
wherein communications on the second link are scheduled by the third wireless node.
7. The method of claim 1 ,
wherein the first transmit power and the second transmit power are selected to share a plurality of portions of the maximum transmit power criterion.
8. The method of claim 1 ,
wherein the first transmit power and the second transmit power are controlled by the first wireless node.
9. The method of claim 1 ,
wherein the first transmit power and the second transmit power are determined based at least in part on received signaling from one or more of:
a central unit of a network,
the second wireless node,
the third wireless node, or
a fourth wireless node.
10. An apparatus for wireless communications at a first wireless node, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to cause the first wireless node to:
provide, to one or more of a second wireless node or a third wireless node and via a media access control (MAC) control element (CE), information related to a first transmit power; and
concurrently transmit an uplink transmission to the second wireless node based on the first transmit power and a downlink transmission to the third wireless node based on a second transmit power,
wherein the first transmit power is for the uplink transmission and is based at least in part on the information related to the transmit power and a prioritization related to a plurality of wireless nodes that include the second wireless node and the third wireless node,
wherein the first transmit power and the second transmit power are selected to control inter-link interference or to satisfy a maximum transmit power criterion,
wherein the first transmit power is determined dynamically,
wherein the second transmit power is determined semi-statically,
wherein the second wireless node is a parent node of the first wireless node, and
wherein the third wireless node is a child node of the first wireless node.
11. The apparatus of claim 10 , wherein the information comprises information regarding a configuration parameter related to the first transmit power.
12. The apparatus of claim 10 , wherein the first wireless node is a wireless relay node.
13. The apparatus of claim 10 ,
wherein the one or more processors, to concurrently transmit the uplink transmission to the second wireless node based on the first transmit power and the downlink transmission to the third wireless node based on the second transmit power, are configured to cause the first wireless node to:
transmit the uplink transmission to the second wireless node based on the first transmit power and via a first link, and
transmit the downlink transmission to the third wireless node based on the second transmit power and via a second link.
14. The apparatus of claim 13 ,
wherein the one or more processors are further configured to cause the first wireless node to:
schedule communications on the second link, and
wherein communications on the first link are scheduled by the second wireless node.
15. The apparatus of claim 13 ,
wherein communications on the first link are scheduled by the second wireless node, and
wherein communications on the second link are scheduled by the third wireless node.
16. The apparatus of claim 10 ,
wherein the one or more processors are further configured to cause the first wireless node to:
select the first transmit power and the second transmit power to share one or more portions of the maximum transmit power criterion.
17. The apparatus of claim 10 ,
wherein the one or more processors are further configured to cause the first wireless node to:
control the first transmit power and the second transmit power.
18. The apparatus of claim 10 ,
wherein the one or more processors are further configured to cause the first wireless node to:
determine the first transmit power and the second transmit power based at least in part on received signaling from one or more of:
a central unit of a network,
the second wireless node,
the third wireless node, or
a fourth wireless node.
19. The apparatus of claim 10 , wherein, to provide the information related to the first transmit power, the one or more processors are configured to cause the first wireless node to:
provide, to the parent node and via the MAC CE, the information related to the first transmit power.
20. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:
one or more instructions that, when executed by one or more processors of a first wireless node, cause the first wireless node to:
provide, to one or more of a second wireless node or a third wireless node and via a media access control (MAC) control element (CE), information related to a first transmit power; and
concurrently transmit an uplink transmission to the second wireless node based on the first transmit power and a downlink transmission to the third wireless node based on a second transmit power,
wherein the first transmit power is for the uplink transmission and is based at least in part on the information related to the transmit power and a prioritization relating to a plurality of wireless nodes that include the second wireless node and the third wireless node,
wherein the first transmit power and the second transmit power are selected to control inter-link interference or to satisfy a maximum transmit power criterion,
wherein the first transmit power is determined dynamically,
wherein the second transmit power is determined semi-statically,
wherein the second wireless node is a parent node of the first wireless node, and
wherein the third wireless node is a child node of the first wireless node.
21. The non-transitory computer-readable medium of claim 20 , wherein the information comprises information regarding a configuration parameter related to the first transmit power.
22. The non-transitory computer-readable medium of claim 21 , wherein the first wireless node is a wireless relay node.
23. The non-transitory computer-readable medium of claim 21 , wherein the one or more instructions further cause the first wireless node to:
communicate with the second wireless node via a first link; and
communicate with the third wireless node via a second link.
24. The non-transitory computer-readable medium of claim 23 ,
wherein the first wireless node schedules communications on the second link, and
wherein communications on the first link are scheduled by the second wireless node.
25. The non-transitory computer-readable medium of claim 23 ,
wherein communications on the first link are scheduled by the second wireless node, and
wherein communications on the second link are scheduled by the third wireless node.
26. The non-transitory computer-readable medium of claim 20 ,
wherein the one or more instructions further cause the first wireless node to:
select the first transmit power and the second transmit power to share a plurality of portions of the maximum transmit power criterion.
27. The non-transitory computer-readable medium of claim 20 ,
wherein the one or more instructions further cause the first wireless node to:
control the first transmit power and the second transmit power.
28. The non-transitory computer-readable medium of claim 20 ,
wherein the one or more instructions further cause the first wireless node to:
determine the first transmit power and the second transmit power based at least in part on received signaling from one or more of:
a central unit of a network,
the second wireless node,
the third wireless node, or
a fourth wireless node.
29. The non-transitory computer-readable medium of claim 20 , wherein, to provide the information related to the first transmit power, the one or more instructions cause the first wireless node to:
provide, to the parent node and via the MAC CE, the information related to the first transmit power.
30. A first apparatus for wireless communication, comprising:
means for providing, from the first apparatus, to one or more of a second apparatus or a third apparatus, and via a media access control (MAC) control element (CE), information related to a first transmit power; and
means for concurrently transmitting an uplink transmission to the second apparatus based on the first transmit power and a downlink transmission to the third apparatus based on a second transmit power,
wherein the first transmit power is for the uplink transmission and is based at least in part on the information related to the transmit power and a prioritization relating to a plurality of wireless nodes that include the second apparatus and the third apparatus,
wherein the first transmit power and the second transmit power are selected to control inter-link interference or to satisfy a maximum transmit power criterion,
wherein the first transmit power is determined dynamically,
wherein the second transmit power is determined semi-statically,
wherein the second apparatus is a parent of the first apparatus, and
wherein the third apparatus is a child of the first apparatus.
31. The first apparatus of claim 30 , wherein, the means for providing the information related to the first transmit power comprise:
means for providing, to the parent of the first apparatus and via the MAC CE, the information related to the first transmit power.
32. The first apparatus of claim 30 , wherein the information comprises information regarding a configuration parameter related to the first transmit power.
33. The first apparatus of claim 30 , wherein the first apparatus communicates with the second apparatus via a first link and the first apparatus communicates with the third apparatus via a second link.