Per-panel RF sensing transmission and measurement operations

1 . An apparatus for wireless communication at a user equipment (UE), comprising:

a transceiver;

at least one memory; and

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

transmit, to a sensing entity, an indication of a capability to perform radio frequency (RF) sensing using a set of antenna panels;

receive, from the sensing entity based on the indication, a configuration to perform an RF sensing operation using a subset of antenna panels in the set of antenna panels, wherein each antenna panel in the subset of antenna panels is configured to perform a corresponding RF sensing operation for each antenna panel; and

perform, based on the configuration, the RF sensing operation via each antenna panel in the subset of antenna panels.

2 . The apparatus of claim 1 , wherein the corresponding RF sensing operation for each antenna panel is at least partially different from a particular RF sensing operation for at least one other antenna panel in the subset of antenna panels.

3 . The apparatus of claim 1 , wherein the sensing entity is a core network entity that is capable of managing or coordinating RF sensing sessions, a base station, an anchor UE, or a roadside unit (RSU).

4 . The apparatus of claim 1 , wherein the indication includes at least one of:

a number of antenna panels available at the UE,

a panel identification (ID) for each antenna panel in the set of antenna panels,

a maximum number of antenna panels that can be used simultaneously,

at least one timing offset between different antenna panels, or

a relative geometric location of antenna panels.

5 . The apparatus of claim 1 , wherein the RF sensing operation includes generating a range map, a Doppler map, an angle map, a point cloud, or a combination thereof.

6 . The apparatus of claim 1 , wherein the configuration configures each antenna panel in the subset of antenna panels to perform a specified set of RF sensing measurements.

7 . The apparatus of claim 6 , wherein different antenna panels in the subset of antenna panels are configured to perform at least one RF sensing measurement that is at least partially different from each other.

8 . The apparatus of claim 1 , wherein the configuration configures each antenna panel in the subset of antenna panels with a specific set of reference signal resources.

9 . The apparatus of claim 8 , wherein reference signal resources for at least one antenna panel in the subset of antenna panels is associated with a different sensing frequency layer (SFL) or a different positioning frequency layer (PFL) than at least one other antenna panel in the subset of antenna panels.

10 . The apparatus of claim 1 , wherein the at least one processor, individually or in any combination, is further configured to:

transmit, to the sensing entity, a second indication of a set of RF sensing measurements.

11 . The apparatus of claim 10 , wherein the set of RF sensing measurements includes a panel identification (ID) for each antenna panel in the subset of antenna panels.

12 . The apparatus of claim 1 , wherein to perform the RF sensing via each antenna panel in the subset of antenna panels, the at least one processor, individually or in any combination, is configured to:

transmit a set of reference signals via each antenna panel in the subset of antenna panels.

13 . The apparatus of claim 12 , wherein the at least one processor, individually or in any combination, is further configured to:

receive a corresponding set of reference signals reflected from one or more objects via each antenna panel in the subset of antenna panels.

14 . The apparatus of claim 1 , wherein the at least one processor, individually or in any combination, is further configured to:

receive a third indication to activate or deactivate at least one antenna panel in the set of antenna panels or in the subset of antenna panels.

15 . The apparatus of claim 14 , wherein to receive the third indication, the at least one processor, individually or in any combination, is configured to:

receive the third indication via downlink control information (DCI), a medium access control (MAC)-control element (MAC-CE), radio resource control (RRC) signaling, an upper layer protocol, a sensing protocol, or a combination thereof.

16 . The apparatus of claim 1 , wherein the at least one processor, individually or in any combination, is further configured to:

transmit, to the sensing entity, a request to provide downlink (DL) sensing reference signals per antenna panel; and

receive different DL sensing reference signals via different antenna panels based on the request.

17 . The apparatus of claim 1 , wherein the at least one processor, individually or in any combination, is further configured to:

transmit, to the sensing entity, a request to provide uplink (UL) resources for transmitting reference signals per antenna panel.

18 . The apparatus of claim 17 , wherein the at least one processor, individually or in any combination, is further configured to:

receive, from the sensing entity based on the request, different UL resource allocations for different antenna panels.

19 . A method of wireless communication at a user equipment (UE), comprising:

transmitting, to a sensing entity, an indication of a capability to perform radio frequency (RF) sensing using a set of antenna panels;

receiving, from the sensing entity based on the indication, a configuration to perform an RF sensing operation using a subset of antenna panels in the set of antenna panels, wherein each antenna panel in the subset of antenna panels is configured to perform a corresponding RF sensing operation for each antenna panel; and

performing, based on the configuration, the RF sensing operation via each antenna panel in the subset of antenna panels.

20 . An apparatus for wireless communication at a sensing entity, comprising:

a transceiver;

at least one memory; and

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

receive, from a user equipment (UE), an indication of a capability to perform radio frequency (RF) sensing using a set of antenna panels; and

transmit, to the UE based on the indication, a configuration to perform an RF sensing operation using a subset of antenna panels in the set of antenna panels, wherein each antenna panel in the subset of antenna panels is configured to perform a corresponding RF sensing operation for each antenna panel.

21 . The apparatus of claim 20 , wherein the corresponding RF sensing operation for each antenna panel is at least partially different from a particular RF sensing operation for at least one other antenna panel in the subset of antenna panels.

22 . The apparatus of claim 20 , wherein the indication includes at least one of:

a number of antenna panels available at the UE,

a panel identification (ID) for each antenna panel in the set of antenna panels,

a maximum number of antenna panels that can be used simultaneously,

at least one timing offset between different antenna panels, or

a relative geometric location of antenna panels.

23 . The apparatus of claim 20 , wherein the RF sensing operation includes generating a range map, a Doppler map, an angle map, a point cloud, or a combination thereof.

24 . The apparatus of claim 20 , wherein the configuration configures each antenna panel in the subset of antenna panels to perform a specified set of RF sensing measurements.

25 . The apparatus of claim 20 , wherein the configuration configures each antenna panel in the subset of antenna panels with a specific set of reference signal resources.

26 . The apparatus of claim 20 , wherein the at least one processor, individually or in any combination, is further configured to:

receive, from the UE, a second indication of a set of RF sensing measurements.

27 . The apparatus of claim 20 , wherein the at least one processor, individually or in any combination, is further configured to:

transmit a second indication to activate or deactivate at least one antenna panel in the set of antenna panels or in the subset of antenna panels.

28 . The apparatus of claim 20 , wherein the at least one processor, individually or in any combination, is further configured to:

receive, from the UE, a request to provide downlink (DL) sensing reference signals per antenna panel; and

configure, for the UE based on the request, different DL sensing reference signals for different antenna panels of the UE.

29 . The apparatus of claim 20 , wherein the at least one processor, individually or in any combination, is further configured to:

receive, from the UE, a request to provide uplink (UL) resources for transmitting reference signals per antenna panel; and

configure, for the UE based on the request, different UL resource allocations for different antenna panels of the UE.

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

receiving, from a user equipment (UE), an indication of a capability to perform radio frequency (RF) sensing using a set of antenna panels; and

transmitting, to the UE based on the indication, a configuration to perform an RF sensing operation using a subset of antenna panels in the set of antenna panels, wherein each antenna panel in the subset of antenna panels is configured to perform a corresponding RF sensing operation for each antenna panel.