Receive configuration for radar signal on uplink resources and associated power control parameter
In an aspect, a first base station (e.g., Rx gNB) receives, from a radar controller, a configuration of UL T-F resources for the first base station to receive at least one radar signal from a second base station. The first base station further determines power control parameter(s) associated with the at least one radar signal, at least one UL transmission, or a combination thereof. The first base station performs, based on the power control parameter(s), action(s) to mitigate impact by the at least one radar signal to the at least one UL transmission, or by the at least one UL transmission to the at least one radar signal, or a combination thereof. The first base station measures the at least one radar signal on the set of UL T-F resources in accordance with the configuration.
1. A method of operating a radar controller, comprising:
determining a first configuration of a set of uplink (UL) time-frequency (T-F) resources for a first wireless network component to measure at least one radar signal, wherein the set of T-F resources comprises a set of resource elements in a time-frequency grid;
determining at least one power control parameter associated with the at least one radar signal, at least one UL transmission with a potential for interference with the at least one radar signal, or a combination thereof; and
transmitting, to the first wireless network component, a first request for a measurement operation of the at least one radar signal associated with the first configuration and the at least one power control parameter.
2. The method of claim 1 , further comprising:
determining a second configuration of a set of downlink (DL) T-F resources for a second wireless network component to transmit the at least one radar signal; and
transmitting, to the second wireless network component, a second request for a transmission operation associated with the second configuration to the second wireless network component.
3. The method of claim 2 , wherein the second configuration is configured on-demand, aperiodically, or semi-persistently.
4. The method of claim 1 , wherein the at least one power control parameter comprises:
a maximum interference on the set of UL T-F resources for the at least one UL transmission, the at least one radar signal, or a combination thereof, or
a power level on the set of UL T-F resources for the at least one UL transmission, the at least one radar signal, or a combination thereof, or
a relative power level on the set of UL T-F resources between the at least one radar signal and the at least one UL transmission, or
an instruction to mute some or all UL transmissions on the set of UL T-F resources in a time-domain or a T-F domain, or
a combination thereof.
5. The method of claim 1 , wherein the first configuration is configured on-demand, aperiodically, or semi-persistently.
6. The method of claim 1 , further comprising:
receiving, from the first wireless network component, an interference measurement report; and
determining, based on the interference measurement report, whether to update the first configuration, the at least one power control parameter, or a combination thereof.
7. The method of claim 6 , wherein the interference measurement report comprises:
a signal-to-interference-plus-noise (SINR), Received Signal Strength Indicator (RSSI), or Reference Signal Receive Power (RSRP), of the at least one UL transmission on the set of UL T-F resources, or
a differential in SINR, RSSI, or RSRP, between a first subset of the set of UL T-F resources that comprise the at least one radar signal and a second subset of the set of UL T-F resources that do not comprise the at least one radar signal, or
a power headroom report that indicates an available transmission power increase to a transmission power level of the at least one radar signal, or
a recommendation of one or more different resources for the at least one radar signal, or
a combination thereof.
8. The method of claim 7 , wherein the one or more different resources comprise a time-domain resource, a frequency-domain resource, a beam resource, or a combination thereof.
9. The method of claim 6 , wherein the interference measurement report is associated with the at least one radar signal or the set of UL T-F resources or a combination thereof and is specific to a set of symbols, a set of frequencies, a set of beam directions, or a combination thereof.
10. The method of claim 6 , wherein the interference measurement report is received in response to at least one triggering event.
11. The method of claim 10 , wherein the at least one triggering event comprises:
initial receipt by the first wireless network component of the first request, or
a measured signal-to-interference-plus-noise (SINR) on the set of UL T-F resources dropping below an SINR threshold, or
receipt of an updated configuration for an updated set of UL T-F resources, or
a combination thereof.
12. The method of claim 1 , wherein the radar controller corresponds to an access network component, a core network component, a location management function (LMF) component, a component that is external to a serving network associated with the first wireless network component, or a combination thereof.
13. The method of claim 1 , wherein the at least one power control parameter is configured as an update to at least one other power control power determined at the first wireless network component independently from the radar controller.
14. A method of operating a first wireless network component, comprising:
receiving, from a radar controller, a configuration of a set of uplink (UL) time-frequency (T-F) resources for the first wireless network component to receive at least one radar signal, wherein the set of T-F resources comprises a set of resource elements in a time-frequency grid;
determining at least one power control parameter associated with the at least one radar signal, at least one UL transmission, or a combination thereof;
performing, based on the at least one power control parameter, at least one action to mitigate impact by the at least one radar signal to the at least one UL transmission, or by the at least one UL transmission to the at least one radar signal, or a combination thereof; and
measuring the at least one radar signal on the set of UL T-F resources in accordance with the configuration.
15. The method of claim 14 ,
wherein the determining comprises receiving the at least one power control parameter from the radar controller, or
wherein the determining determines the at least one power control parameter independently from the radar controller.
16. The method of claim 14 , wherein the at least one action comprises:
muting the at least one UL transmission or modifying a transmission power level of the at least one UL transmission, or
transmitting a message to the radar controller to request a modification to a transmission power level of the at least one radar signal, or
a combination thereof.
17. The method of claim 14 , wherein the at least one power control parameter comprises:
a maximum interference on the set of UL T-F resources for the at least one UL transmission, the at least one radar signal, or a combination thereof, or
a power level on the set of UL T-F resources for the at least one UL transmission, the at least one radar signal, or a combination thereof, or
a relative power level on the set of UL T-F resources between the at least one radar signal and the at least one UL transmission, or
an instruction to mute some or all UL transmissions on the set of UL T-F resources in a time-domain or a T-F domain, or
a combination thereof.
18. The method of claim 14 , wherein the configuration is configured on-demand, aperiodically, or semi-persistently.
19. The method of claim 14 , further comprising:
transmitting, to the radar controller, an interference measurement report.
20. The method of claim 19 , further comprising:
receiving, from the radar controller in response to the interference measurement report, an update to the configuration, the at least one power control parameter, or a combination thereof.
21. The method of claim 19 , wherein the interference measurement report comprises:
a signal-to-interference-plus-noise (SINR), Received Signal Strength Indicator (RSSI), or Reference Signal Receive Power (RSRP), of the at least one UL transmission on the set of UL T-F resources, or
a differential in SINR, RSSI, or RSRP, between a first subset of the set of UL T-F resources that comprise the at least one radar signal and a second subset of the set of UL T-F resources that do not comprise the at least one radar signal, or
a power headroom report that indicates an available transmission power increase to a transmission power level of the at least one radar signal, or
a recommendation of one or more different resources for the at least one radar signal, or
a combination thereof.
22. The method of claim 21 , wherein the one or more different resources comprise a time-domain resource, a frequency-domain resource, a beam resource, or a combination thereof.
23. The method of claim 19 , wherein the interference measurement report is associated with the at least one radar signal or the set of UL T-F resources or a combination thereof and is specific to a set of symbols, a set of frequencies, a set of beam directions, or a combination thereof.
24. The method of claim 19 , wherein the interference measurement report is transmitted in response to at least one triggering event.
25. The method of claim 24 , wherein the at least one triggering event comprises:
initial receipt by the first wireless network component of a request to measure the at least one radar signal, or
receipt of an updated configuration for an updated set of UL T-F resources, or
a measured signal-to-interference-plus-noise (SINR) on the set of UL T-F resources dropping below an SINR threshold, or
a combination thereof.
26. The method of claim 25 , wherein the radar controller corresponds to an access network component, a core network component, a location management function (LMF) component, a component that is external to a serving network associated with the first wireless network component, or a combination thereof.
27. The method of claim 14 , wherein the at least one radar signal is received from a second based station.
28. A radar controller, comprising:
a memory;
at least one transceiver; and
at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to:
determine a first configuration of a set of uplink (UL) time-frequency (T-F) resources for a first wireless network component to measure at least one radar signal, wherein the set of T-F resources comprises a set of resource elements in a time-frequency grid;
determine at least one power control parameter associated with the at least one radar signal, at least one UL transmission with a potential for interference with the at least one radar signal, or a combination thereof; and
transmit, via the at least one transceiver, to the first wireless network component, a first request for a measurement operation associated with the first configuration and the at least one power control parameter.
29. The radar controller of claim 28 , wherein the at least one processor is further configured to:
determine a second configuration of a set of downlink (DL) T-F resources for a second wireless network component to transmit the at least one radar signal; and
transmit, via the at least one transceiver, to the second wireless network component, a second request for a transmission operation associated with the second configuration to the second wireless network component.
30. A wireless network component, comprising:
a memory;
at least one transceiver; and
at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to:
receive, via the at least one transceiver, from a radar controller, a configuration of a set of uplink (UL) time-frequency (T-F) resources for the wireless network component to receive at least one radar signal, wherein the set of T-F resources comprises a set of resource elements in a time-frequency grid;
determine at least one power control parameter associated with the at least one radar signal, at least one UL transmission, or a combination thereof;
perform, based on the at least one power control parameter, at least one action to mitigate impact by the at least one radar signal to the at least one UL transmission, or by the at least one UL transmission to the at least one radar signal, or a combination thereof; and
measure the at least one radar signal on the set of UL T-F resources in accordance with the configuration.