Repeater power management for positioning

1 . An apparatus for wireless communication at a wireless device, comprising:

memory; and

at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:

receive at least one downlink (DL) transmission at a reception power level, wherein the at least one DL transmission is associated with an initial transmission power level including at least one initial power characteristic that is different from at least one repeater power characteristic of a repeater transmission power level associated with the at least one DL transmission, wherein the initial transmission power level and the repeater transmission power level are associated with communication for a positioning session; and

obtain an indication of the at least one repeater power characteristic of the repeater transmission power level, wherein the indication is associated with an uplink transmission thereof subsequent to obtainment of the indication.

2 . The apparatus of claim 1 , wherein the indication of the at least one repeater power characteristic of the repeater transmission power level includes at least one of a first power level for a synchronization signal block (SSB) or a second power level for a positioning reference signal (PRS).

3 . The apparatus of claim 2 , wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates at least one of a range of transmission power for the repeater transmission power level, a minimum range of transmission power for the repeater transmission power level, a maximum range of transmission power for the repeater transmission power level, a mean range of transmission power for the repeater transmission power level, or a percentile range of transmission power for the repeater transmission power level.

4 . The apparatus of claim 2 , wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates at least one of a value of amplification gain for the repeater transmission power level, a range of amplification gain for the repeater transmission power level, a minimum range of amplification gain for the repeater transmission power level, a maximum range of amplification gain for the repeater transmission power level, a mean range of amplification gain for the repeater transmission power level, or a percentile range of amplification gain for the repeater transmission power level.

5 . The apparatus of claim 2 , wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates a flag that indicates at least one of a constant power for the repeater transmission power level or a constant gain for the repeater transmission power level.

6 . The apparatus of claim 2 , wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates information for a DL reference signal received power (DL-RSRP), wherein the information for the DL-RSRP includes at least one of a value of the DL-RSRP, a range of the DL-RSRP, a minimum value of the DL-RSRP, a maximum value of the DL-RSRP, a mean value of the DL-RSRP, or a percentile value of the DL-RSRP.

7 . The apparatus of claim 6 , wherein the information for the DL-RSRP further includes at least two instances of the information for the DL-RSRP that respectively correspond to at least two access directions associated with the DL-RSRP.

8 . The apparatus of claim 2 , wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates at least one of a transmit power value or an amplification gain value that corresponds to at least one DL beam respectively associated with the at least one DL transmission.

9 . The apparatus of claim 2 , wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates a constant output power for the at least one DL transmission.

10 . The apparatus of claim 1 , wherein to receive the at least one DL transmission, the at least one processor is configured to receive the at least one DL transmission from a network controlled repeater (NCR); and

wherein the initial transmission power level is associated with a network node.

11 . The apparatus of claim 1 , wherein to obtain the indication of the at least one repeater power characteristic of the repeater transmission power level, the at least one processor is configured to receive, from a network node, the indication of the at least one repeater power characteristic of the repeater transmission power level.

12 . An apparatus for wireless communication at a wireless device, comprising:

memory; and

at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:

transmit at least one downlink (DL) transmission, wherein the at least one DL transmission is associated with a first transmission power level including at least one first power characteristic;

obtain a first indication of a second transmission power level of the at least one DL transmission, wherein the second transmission power level includes at least one second power characteristic that is different from the at least one first power characteristic of the first transmission power level, wherein the first transmission power level and the second transmission power level are associated with communication for a positioning session; and

transmit a second indication of the at least one second power characteristic of the second transmission power level.

13 . The apparatus of claim 12 , wherein the second transmission power level is associated with a transmission of a repeater, and wherein the second indication of the at least one second power characteristic of the second transmission power level includes at least one of a first power level for a synchronization signal block (SSB) or a second power level for a positioning reference signal (PRS).

14 . The apparatus of claim 13 , wherein the second indication of the at least one second power characteristic of the second transmission power level indicates at least one of a range of transmission power for the second transmission power level, a minimum range of transmission power for the second transmission power level, a maximum range of transmission power for the second transmission power level, a mean range of transmission power for the second transmission power level, or a percentile range of transmission power for the second transmission power level.

15 . The apparatus of claim 13 , wherein the second indication of the at least one second power characteristic of the second transmission power level indicates at least one of a value of amplification gain for the second transmission power level, a range of amplification gain for the second transmission power level, a minimum range of amplification gain for the second transmission power level, a maximum range of amplification gain for the second transmission power level, a mean range of amplification gain for the second transmission power level, or a percentile range of amplification gain for the second transmission power level.

16 . The apparatus of claim 13 , wherein the second indication of the at least one second power characteristic of the second transmission power level indicates a flag that indicates at least one of a constant power for the second transmission power level or a constant gain for the second transmission power level.

17 . The apparatus of claim 13 , wherein the second indication of the at least one second power characteristic of the second transmission power level indicates information for a DL reference signal received power (DL-RSRP), wherein the information for the DL-RSRP includes at least one of a value of the DL-RSRP, a range of the DL-RSRP, a minimum value of the DL-RSRP, a maximum value of the DL-RSRP, a mean value of the DL-RSRP, or a percentile value of the DL-RSRP.

18 . The apparatus of claim 17 , wherein the information for the DL-RSRP further includes at least two instances of the information for the DL-RSRP that respectively correspond to at least two access directions associated with the DL-RSRP.

19 . The apparatus of claim 13 , wherein the second indication of the at least one second power characteristic of the second transmission power level indicates at least one of a transmit power value or an amplification gain value that corresponds to at least one DL beam respectively associated with the at least one DL transmission.

20 . The apparatus of claim 13 , wherein the second indication of the at least one second power characteristic of the second transmission power level indicates a constant output power for the at least one DL transmission.

21 . The apparatus of claim 12 , wherein to transmit the at least one DL transmission, the at least one processor is configured to transmit the at least one DL transmission for a network controlled repeater (NCR); and

wherein the wireless device is a network node.

22 . The apparatus of claim 21 , wherein the at least one processor is further configured to:

transmit, for a location management function (LMF), adjustment information, wherein the adjustment information includes at least one of a first range for a power level adjustment associated with the second transmission power level or a second range for a gain adjustment associated with the second transmission power level;

receive, from the LMF, a request, wherein the request indicates at least one of a first target value within the first range for the power level adjustment, a first relative adjustment value within the first range for the power level adjustment, a second target value within the second range for the gain adjustment, or a second relative adjustment value within the second range for the gain adjustment; and

transmit, for the NCR, an indication of at least one of the first target value, the first relative adjustment value, the second target value, or the second relative adjustment value.

23 . The apparatus of claim 22 , wherein to transmit the adjustment information, the at least one processor is configured to transmit the adjustment information with transmission-reception power information; and

wherein to receive the request, the at least one processor is configured to receive a positioning reference signal (PRS) configuration request with DL PRS transmission characteristics.

24 . The apparatus of claim 21 , wherein the at least one processor is further configured to:

receive, from a location management function (LMF), a positioning information request, wherein the positioning information request indicates requested transmission characteristics associated with at least one synchronization signal block (SSB) including at least one of a first target value of a power level adjustment for the at least one SSB, a first relative adjustment value of the power level adjustment for the at least one SSB, a second target value of a gain adjustment for the at least one SSB, or a second relative adjustment value of the gain adjustment for the at least one SSB; and

transmit, for the NCR, an indication of at least one of the first target value, the first relative adjustment value, the second target value, or the second relative adjustment value.

25 . The apparatus of claim 12 , wherein to obtain the first indication of the second transmission power level of the at least one DL transmission, the at least one processor is configured to receive, from a repeater, the first indication of the second transmission power level of the at least one DL transmission; or

wherein to obtain the first indication of the second transmission power level of the at least one DL transmission, the at least one processor is configured to configure the first indication of the second transmission power level of the at least one DL transmission.

26 . A method of wireless communication at a wireless device, comprising:

receiving at least one downlink (DL) transmission at a reception power level, wherein the at least one DL transmission is associated with an initial transmission power level including at least one initial power characteristic that is different from at least one repeater power characteristic of a repeater transmission power level associated with the at least one DL transmission, wherein the initial transmission power level and the repeater transmission power level are associated with communication for a positioning session; and

obtaining an indication of the at least one repeater power characteristic of the repeater transmission power level, wherein the indication is associated with an uplink transmission thereof subsequent to obtainment of the indication.

27 . The method of claim 26 , wherein the indication of the at least one repeater power characteristic of the repeater transmission power level includes at least one of a first power level for a synchronization signal block (SSB) or a second power level for a positioning reference signal (PRS).

28 . The method of claim 27 , wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates at least one of a range of transmission power for the repeater transmission power level, a minimum range of transmission power for the repeater transmission power level, a maximum range of transmission power for the repeater transmission power level, a mean range of transmission power for the repeater transmission power level, or a percentile range of transmission power for the repeater transmission power level;

wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates at least one of a value of amplification gain for the repeater transmission power level, a range of amplification gain for the repeater transmission power level, a minimum range of amplification gain for the repeater transmission power level, a maximum range of amplification gain for the repeater transmission power level, a mean range of amplification gain for the repeater transmission power level, or a percentile range of amplification gain for the repeater transmission power level;

wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates a flag that indicates at least one of a constant power for the repeater transmission power level or a constant gain for the repeater transmission power level;

wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates information for a DL reference signal received power (DL-RSRP), wherein the information for the DL-RSRP includes at least one of a value of the DL-RSRP, a range of the DL-RSRP, a minimum value of the DL-RSRP, a maximum value of the DL-RSRP, a mean value of the DL-RSRP, or a percentile value of the DL-RSRP;

wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates at least one of a transmit power value or an amplification gain value that corresponds to at least one DL beam respectively associated with the at least one DL transmission; or

wherein the indication of the at least one repeater power characteristic of the repeater transmission power level indicates a constant output power for the at least one DL transmission.

29 . The method of claim 26 , wherein obtaining the indication of the at least one repeater power characteristic of the repeater transmission power level comprises receiving, from a network node, the indication of the at least one repeater power characteristic of the repeater transmission power level.

30 . A method of wireless communication at a wireless device, comprising:

transmitting at least one downlink (DL) transmission, wherein the at least one DL transmission is associated with a first transmission power level including at least one first power characteristic;

obtaining a first indication of a second transmission power level of the at least one DL transmission, wherein the second transmission power level includes at least one second power characteristic that is different from the at least one first power characteristic of the first transmission power level, wherein the first transmission power level and the second transmission power level are associated with communication for a positioning session; and

transmitting a second indication of the at least one second power characteristic of the second transmission power level.