Wake-up signal for non-data services
Aspects presented herein may improve the efficiency, latency, and power consumption of a UE performing non-data operations/service(s), such as RF sensing, UE positioning, and/or RFID processing, etc., as the UE may be triggered to perform the non-data operations/service(s) based on monitoring a low-power wake-up signal (LP-WUS) using a low-power wake-up radio (LP-WUR) circuitry. In one aspect, a UE monitors for an LP-WUS during one or more LP-WUS monitoring occasions, where at least one of the LP-WUS or the one or more LP-WUS monitoring occasions is associated with at least one non-data service. The UE performs the at least one non-data service in response to detecting the LP-WUS during the one or more LP-WUS monitoring occasions.
1 . An apparatus for wireless communication at a user equipment (UE), comprising:
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 is configured to:
monitor for a first low-power (LP)-wake-up signal (WUS) (LP-WUS) during one or more LP-WUS monitoring occasions, wherein the first LP-WUS is associated with at least one non-data service, wherein the at least one non-data service includes a positioning method, radio frequency sensing, reception of radio frequency energy, transmission of the radio frequency energy, communication with at least one radio frequency identification (RFID) tag, or a combination thereof;
perform the at least one non-data service in response to detecting the first LP-WUS during the one or more LP-WUS monitoring occasions, wherein the first LP-WUS includes an indication that the at least one non-data service is to be performed by the UE; and
receive a second LP-WUS that includes additional information associated with the at least one non-data service to be performed by the UE, wherein the additional information is not included in the first LP-WUS.
2 . The apparatus of claim 1 , wherein the first LP-WUS includes first information associated with the at least one non-data service.
3 . The apparatus of claim 1 , wherein the at least one processor is configured to monitor the first LP-WUS using a LP wake-up radio (WUR) (LP-WUR) circuitry while a main radio (MR) circuitry of the UE is deactivated or in a radio resource control (RRC) idle or RRC inactive mode.
4 . The apparatus of claim 3 , wherein the at least one processor is further configured to:
activate the MR circuitry if the first LP-WUS is detected, wherein the at least one processor is configured to perform the at least one non-data service via the MR circuitry.
5 . The apparatus of claim 1 , wherein the at least one processor is configured to monitor the first LP-WUS using a LP wake-up radio (WUR) (LP-WUR) circuitry while a main radio (MR) circuitry of the UE is active or in a radio resource control (RRC) connected mode.
6 . The apparatus of claim 1 , wherein the one or more LP-WUS monitoring occasions are configured to be periodic or semi-persistent.
7 . The apparatus of claim 1 , wherein the first LP-WUS includes an indication of a reference signal configuration in a plurality of reference signal configurations to be used for the at least one non-data service.
8 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
determine a priority between multiple non-data services in the at least one non-data service based on a bitmap associated with the first LP-WUS or the one or more LP-WUS monitoring occasions; and
perform one or more non-data services in the at least one non-data service based on the priority.
9 . The apparatus of claim 1 , wherein the LP-WUS is associated with at least one of:
a dedicated signal or waveform,
a dedicated downlink control information (DCI) format,
a dedicated coding method, or
a dedicated modulation method.
10 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
receive, from a network entity, a configuration to monitor for the first LP-WUS during the one or more LP-WUS monitoring occasions, wherein the configuration includes at least one of a reception behavior or a transmission behavior of the UE.
11 . The apparatus of claim 1 , wherein the at least one processor is further configured to:
transmit, for a network entity, an indication of a sleep mode of the UE or a pattern of the UE; and
receive, from the network entity, a configuration to monitor for the first LP-WUS during the one or more LP-WUS monitoring occasions based on the sleep mode or the pattern.
12 . A method of wireless communication at a user equipment (UE), comprising:
monitoring for a first low-power (LP)-wake-up signal (WUS) (LP-WUS) during one or more LP-WUS monitoring occasions, wherein the LP-WUS is associated with at least one non-data service, wherein the at least one non-data service includes a positioning method, radio frequency sensing, reception of radio frequency energy, transmission of the radio frequency energy, communication with at least one radio frequency identification (RFID) tag, or a combination thereof;
performing the at least one non-data service in response to detecting the first LP-WUS during the one or more LP-WUS monitoring occasions, wherein the LP-WUS includes an indication that the at least one non-data service is to be performed by the UE; and
receiving a second LP-WUS that includes additional information associated with the at least one non-data service to be performed by the UE, wherein the additional information is not included in the first LP-WUS.
13 . The method of claim 12 , wherein the first LP-WUS is monitored using a LP wake-up radio (WUR) (LP-WUR) circuitry while a main radio (MR) circuitry of the UE is deactivated or in a radio resource control (RRC) idle or RRC inactive mode the method further comprises:
activating the MR circuitry if the LP-WUS is detected, wherein the at least one non-data service is performed via the MR circuitry.
14 . The method of claim 12 , further comprising:
determining a priority between multiple non-data services in the at least one non-data service based on a bitmap associated with the first LP-WUS or the one or more LP-WUS monitoring occasions; and
performing one or more non-data services in the at least one non-data service based on the priority.
15 . The method of claim 12 , further comprising:
receiving, from a network entity, a configuration to monitor for the first LP-WUS during the one or more LP-WUS monitoring occasions, wherein the configuration includes at least one of a reception behavior or a transmission behavior of the UE.
16 . An apparatus for wireless communication at a network entity, comprising:
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 is configured to:
transmit, for a user equipment (UE), an indication to monitor for a first low-power (LP)-wake-up signal (WUS) (LP-WUS) during one or more LP-WUS monitoring occasions, wherein the first LP-WUS is associated with at least one non-data service, wherein the at least one non-data service includes a positioning method, radio frequency sensing, reception of radio frequency energy, transmission of the radio frequency energy, communication with at least one radio frequency identification (RFID) tag, or a combination thereof;
transmit, for the UE, the first LP-WUS during the one or more LP-WUS monitoring occasions to request the UE to perform the at least one non-data service, wherein the first LP-WUS includes an indication that the at least one non-data service is to be performed by the UE; and
transmit, for the UE, a second LP-WUS that includes additional information associated with the at least one non-data service to be performed by the UE, wherein the additional information is not included in the first LP-WUS.
17 . The apparatus of claim 16 , wherein the first LP-WUS includes first information associated with the at least one non-data service.
18 . The apparatus of claim 16 , wherein the one or more LP-WUS monitoring occasions are configured to be periodic or semi-persistent.
19 . The apparatus of claim 16 , wherein the first LP-WUS includes a second indication of a reference signal configuration in a plurality of reference signal configurations to be used for the at least one non-data service.
20 . The apparatus of claim 16 , wherein the first LP-WUS is associated with at least one of:
a dedicated signal or waveform,
a dedicated downlink control information (DCI) format,
a dedicated coding method, or
a dedicated modulation method.
21 . The apparatus of claim 16 , wherein the at least one processor is configured to transmit the indication to monitor for the first LP-WUS during the one or more LP-WUS monitoring occasions to a group of UEs in an LP state.
22 . The apparatus of claim 16 , wherein the at least one processor is further configured to:
transmit, for the UE, a configuration to monitor for the first LP-WUS during the one or more LP-WUS monitoring occasions, wherein the configuration includes at least one of a reception behavior or a transmission behavior of the UE.
23 . The apparatus of claim 16 , wherein the at least one processor is further configured to:
receive a second indication of a sleep mode of the UE or a pattern of the UE; and
transmit, for the UE, a configuration to monitor for the first LP-WUS during the one or more LP-WUS monitoring occasions based on the indication.
24 . A method of wireless communication at a network entity, comprising:
transmitting, for a user equipment (UE), an indication to monitor for a first low-power (LP)-wake-up signal (WUS) (LP-WUS) during one or more LP-WUS monitoring occasions, wherein the first LP-WUS is associated with at least one non-data service, wherein the at least one non-data service includes a positioning method, radio frequency sensing, reception of radio frequency energy, transmission of the radio frequency energy, communication with at least one radio frequency identification (RFID) tag, or a combination thereof;
transmitting, for the UE, the LP-WUS during the one or more LP-WUS monitoring occasions to request the UE to perform the at least one non-data service, wherein the LP-WUS includes an indication that the at least one non-data service is to be performed by the UE; and
transmitting, for the UE, a second LP-WUS that includes additional information associated with the at least one non-data service to be performed by the UE, wherein the additional information is not included in the first LP-WUS.
25 . The method of claim 24 , further comprising:
transmitting, for the UE, a configuration to monitor for the first LP-WUS during the one or more LP-WUS monitoring occasions, wherein the configuration includes at least one of a reception behavior or a transmission behavior of the UE.
26 . The method of claim 24 , further comprising:
receiving a second indication of a sleep mode of the UE or a pattern of the UE; and
transmitting, for the UE, a configuration to monitor for the first LP-WUS during the one or more LP-WUS monitoring occasions based on the indication.