Power control for concurrent reception
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a control node may determine, for a target wireless node in communication with a plurality of other wireless nodes via a plurality of links of a network, a plurality of powers for the plurality of links, wherein the plurality of powers are selected to control inter-link interference or to satisfy a maximum power criterion. The control node may cause at least one of the target wireless node or the plurality of other wireless nodes to use the plurality of powers for concurrent transmissions to the target wireless node using the plurality of links based at least in part on determining the plurality of powers. Numerous other aspects are provided.
1. A first wireless node for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to cause the first wireless node to:
receive, from a second wireless node, information related to a first power for a first link between the first wireless node and the second wireless node;
receive information related to a second power for a second link between the first wireless node and a third wireless node,
wherein the first wireless node is downstream of the second wireless node,
wherein the first wireless node is upstream of the third wireless node, and
wherein the first power and the second power are in accordance with a receiver beamforming configuration to receive concurrent transmissions from the second wireless node and the third wireless node; and
provide information that identifies at least one of the first power or the second power.
2. The first wireless node of claim 1 , wherein the one or more processors, to provide the information that identifies at least one of the first power or the second power, are configured to cause the first wireless node to:
transmit an indicator of the first power.
3. The first wireless node of claim 1 , wherein the information that identifies at least one of the first power or the second power is provided in one of:
a downlink control information (DCI) signal,
an uplink control information (UCI) signal,
a media access control (MAC) control element (CE) signal,
a radio resource control (RRC) signal,
a master information block (MIB) signal,
a system information block (SIB) signal,
a reference signal,
a beam reference signal,
a physical downlink shared channel (PDSCH) signal,
an acknowledgement signal,
a negative acknowledgement signal,
a power indication signal,
an upper layer signaling signal, or
a modulation and coding scheme (MCS) indication signal.
4. The first wireless node of claim 1 , wherein the one or more processors are further configured to cause the first wireless node to:
receive feedback information that identifies a request to associate one or more transmissions with an adjusted power; and
determine subsequent transmission power based at least in part on the request.
5. The first wireless node of claim 1 , wherein the first power is a first transmit power for the first link, and
wherein the second power is a second transmit power for the second link.
6. The first wireless node of claim 1 , wherein the one or more processors are further configured to cause the first wireless node to:
determine a first receive power for the first link and a second receive power for the second link,
wherein the first receive power is different from the first power, and
wherein the second receive power is different from the second power; and
provide information that identifies at least one of the first receive power or the second receive power.
7. The first wireless node of claim 1 , wherein one or more of the first power or the second power is selected for the first wireless node to receive the concurrent transmissions in accordance with inter-link interference or a maximum transmit power criterion.
8. The first wireless node of claim 1 , wherein the one or more processors, to provide the information that identifies at least one of the first power or the second power, are configured to cause the first wireless node to:
provide the information that identifies at least one of the first power or the second power to one or more of the second wireless node or the third wireless node.
9. The first wireless node of claim 1 , wherein the information that identifies at least one of the first power or the second power is provided in a media access control (MAC) control element (CE) signal.
10. A method of wireless communication performed at a first wireless node, the method comprising:
receiving, from a second wireless node, information relating to a first power for a first link between the first wireless node and the second wireless node;
receiving information relating to a second power for a second link between the first wireless node and a third wireless node,
wherein the first wireless node is downstream of the second wireless node,
wherein the first wireless node is upstream of the third wireless node, and
wherein the first power and the second power are in accordance with a receiver beamforming configuration to receive concurrent transmissions from the second wireless node and the third wireless node; and
providing information identifying at least one of the first power or the second power.
11. The method of claim 10 , wherein providing the information identifying at least one of the first power or the second power comprises:
transmitting an indicator of the first power.
12. The method of claim 10 , wherein the information identifying at least one of the first power or the second power is provided in one of:
a downlink control information (DCI) signal,
an uplink control information (UCI) signal,
a media access control (MAC) control element (CE) signal,
a radio resource control (RRC) signal,
a master information block (MIB) signal,
a system information block (SIB) signal,
a reference signal,
a beam reference signal,
a physical downlink shared channel (PDSCH) signal,
an acknowledgement signal,
a negative acknowledgement signal,
a power indication signal,
an upper layer signaling signal, or
a modulation and coding scheme (MCS) indication signal.
13. The method of claim 10 , further comprising:
receiving feedback information identifying a request that one or more transmissions be associated with an adjusted power; and
determining subsequent transmission power based at least in part on the request.
14. The method of claim 10 , wherein the first power is a first transmit power for the first link, and
wherein the second power is a second transmit power for the second link.
15. The method of claim 10 , further comprising:
determining a first receive power for the first link and a second receive power for the second link,
wherein the first receive power is different from the first power, and
wherein the second receive power is different from the second power; and
providing information identifying at least one of the first receive power or the second receive power.
16. The method of claim 10 , wherein one or more of the first power or the second power is selected for the first wireless node to receive the concurrent transmissions in accordance with inter-link interference or a maximum transmit power criterion.
17. The method of claim 10 , wherein providing the information identifying at least one of the first power or the second power comprises:
providing the information identifying at least one of the first power or the second power to one or more of the second wireless node or the third wireless node.
18. The method of claim 10 , wherein the information identifying the first power and the second power is provided in a media access control (MAC) control element (CE) signal.
19. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of 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:
receive, from a second wireless node, information relating to a first power for a first link between the first wireless node and the second wireless node;
receive information relating to a second power for a second link between the first wireless node and a third wireless node,
wherein the first wireless node is downstream of the second wireless node,
wherein the first wireless node is upstream of the third wireless node, and
wherein the first power and the second power are in accordance with a receiver beamforming configuration to receive concurrent transmissions from the second wireless node and the third wireless node; and
provide information identifying at least one of the first power or the second power.
20. The non-transitory computer-readable medium of claim 19 ,
wherein the first power is a first transmit power for the first link, and
wherein the second power is a second transmit power for the second link.
21. The non-transitory computer-readable medium of claim 19 , wherein the information identifying at least one of the first power or the second power is provided in a media access control (MAC) control element (CE) signal.
22. The non-transitory computer-readable medium of claim 19 , wherein the one or more instructions, when executed by the one or more processors, further cause the first wireless node to:
receive feedback information that identifies a request to associate one or more transmissions with an adjusted power; and
determine subsequent transmission power based at least in part on the request.
23. The non-transitory computer-readable medium of claim 19 , wherein the one or more instructions, when executed by the one or more processors, further cause the first wireless node to:
determine a first receive power for the first link and a second receive power for the second link,
wherein the first receive power is different from the first power, and
wherein the second receive power is different from the second power; and
provide information that identifies at least one of the first receive power or the second receive power.
24. A first apparatus for wireless communication, comprising:
means for receiving, from a second apparatus, information relating to a first power, for a first link between the first apparatus and the second apparatus;
means for receiving information relating to a second power for a second link between the first apparatus and a third apparatus,
wherein the first apparatus is downstream of the second apparatus,
wherein the first apparatus is upstream of the third apparatus, and
wherein the first power and the second power are in accordance with a receiver beamforming configuration to receive concurrent transmissions from the second apparatus and the third apparatus; and
means for providing information identifying the first power and the second power.
25. The first apparatus of claim 24 , wherein the first power is a first transmit power for the first link, and
wherein the second power is a second transmit power for the second link.
26. The first apparatus of claim 24 , wherein one or more of the first power or the second power is selected for the first apparatus to receive the concurrent transmissions in accordance with inter-link interference or a maximum transmit power criterion.
27. The first apparatus of claim 24 , further comprising:
means for transmitting an indicator of the first power.
28. The first apparatus of claim 24 , wherein the information that identifies at least one of the first power or the second power is provided in a media access control (MAC) control element (CE) signal.
29. The first apparatus of claim 24 , further comprising:
means for receiving feedback information that identifies a request to associate one or more transmissions with an adjusted power; and
means for determining subsequent transmission power based at least in part on the request.
30. The first apparatus of claim 24 , further comprising:
means for determining a first receive power for the first link and a second receive power for the second link,
wherein the first receive power is different from the first power, and
wherein the second receive power is different from the second power; and
means for providing information that identifies at least one of the first receive power or the second receive power.