Low power wake-up signaling capabilities
A user equipment (UE) may transmit, to a network entity, a capability message that indicates a set of one or more wake-up signal parameters associated with one or more wake-up signal waveform types supported by the UE. The network entity may transmit an indication of a set of wake-up signals to be monitored by the UE based on the capability message. The UE may monitor for the wake-up signals accordingly. In some examples, the network entity may determine a group of UEs based on wake-up signal parameters being common to the UEs in the group. Each of the UEs may monitor, using a first transceiver associated with a first mode of operation, for a group wake-up signal including a request for each UE of the group of UEs to activate a second transceiver associated with a second mode of operation and higher power consumption than the first transceiver.
1 . An apparatus for wireless communications at a user equipment (UE), comprising:
one or more processors;
one or more memories coupled with the one or more processors; and
instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to:
transmit a capability message that indicates a respective set of one or more wake-up signal parameters associated with each of one or more wake-up signal waveform types that are supported by the UE, wherein each respective set of one or more wake-up signal parameters comprises at least one of a respective sequence length of the associated wake-up signal waveform type, a quantity of waveform sequences that the UE is capable of concurrently receiving within overlapping frequency resources, a quantity of frequency domain allocation positions that the UE is capable of concurrently monitoring for a wake-up signal waveform, a respective quantity of time domain hypotheses supported by the UE for each wake-up signal waveform type, or any combination thereof;
receive an indication of a set of wake-up signals to be monitored by the UE, the set of wake-up signals based at least in part on the respective set of one or more wake-up signal parameters and the one or more wake-up signal waveform types that are supported by the UE; and
monitor, while operating in a low power mode, for at least one wake-up signal of the set of wake-up signals based at least in part on the indication.
2 . The apparatus of claim 1 , wherein the instructions are further executable by the one or more processors to cause the apparatus to:
receive an indication of a respective set of sequence parameters associated with each wake-up signal of the set of wake-up signals, a respective frequency position associated with each wake-up signal of the set of wake-up signals, a respective time slot associated with each wake-up signal, or any combination thereof, wherein the instructions are executable by the one or more processors to cause the apparatus to monitor for the at least one wake-up signal of the set of wake-up signals based at least in part on the respective sets of sequence parameters, the respective frequency positions, or the respective time slots, or any combination thereof.
3 . The apparatus of claim 1 ,
wherein the respective sequence lengths each comprise a respective quantity of time-domain symbols included in a respective wake-up signal waveform type.
4 . The apparatus of claim 1 ,
wherein each waveform sequence of the quantity corresponds to a respective sequence of one or more bit values.
5 . The apparatus of claim 1 ,
wherein the respective quantities of time domain hypotheses each correspond to a respective quantity of time positions that the UE is capable of monitoring for a wake-up signal waveform of a corresponding wake-up signal waveform type.
6 . The apparatus of claim 1 , wherein the UE is included in one or more groups of UEs, each group of the one or more groups comprising the UE and at least one other UE based at least in part on the at least one other UE also supporting at least some of the respective sets of one or more wake-up signal parameters and the one or more wake-up signal waveform types that are supported by the UE.
7 . The apparatus of claim 6 , wherein the set of wake-up signals comprises a respective group wake-up signal for each of the one or more groups of UEs.
8 . The apparatus of claim 1 , wherein the instructions are further executable by the one or more processors to cause the apparatus to:
receive a wake-up signal from the set of wake-up signals based at least in part on the monitoring; and
transition from the low power mode to a second power mode in response to receiving the wake-up signal.
9 . The apparatus of claim 1 , wherein the one or more wake-up signal waveform types comprise one or more orthogonal frequency division multiplexing waveform types, one or more on-off keying waveform types, or any combination thereof.
10 . An apparatus for wireless communications at a network entity, comprising:
one or more processors;
one or more memories coupled with the one or more processors; and
instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to:
receive a capability message that indicates a respective set of one or more wake-up signal parameters associated with each of one or more wake-up signal waveform types that are supported by a user equipment (UE) in communication with the network entity, wherein each respective set of one or more wake-up signal parameters comprises at least one of a respective sequence length of the associated wake-up signal waveform type, a quantity of waveform sequences that the UE is capable of concurrently receiving within overlapping frequency resources, a quantity of frequency domain allocation positions that the UE is capable of concurrently monitoring for a wake-up signal waveform, a respective quantity of time domain hypotheses supported by the UE for each wake-up signal waveform type, or any combination thereof;
transmit an indication of a set of wake-up signals to be monitored by the UE while operating in a low power mode, the set of wake-up signals based at least in part on the respective set of one or more wake-up signal parameters and the one or more wake-up signal waveform types that are supported by the UE; and
transmit at least one wake-up signal of the set of wake-up signals based at least in part on the indication.
11 . The apparatus of claim 10 , wherein the instructions are further executable by the one or more processors to cause the apparatus to:
transmit an indication of a respective set of sequence parameters associated with each wake-up signal of the set of wake-up signals, a respective frequency position associated with each wake-up signal of the set of wake-up signals, a respective time slot associated with each wake-up signal, or any combination thereof, wherein the instructions are executable by the one or more processors to cause the apparatus to transmit the at least one wake-up signal is based at least in part on the respective sets of sequence parameters, the respective frequency positions, the respective time slots, or any combination thereof.
12 . The apparatus of claim 10 ,
wherein the respective sequence lengths each comprise a respective quantity of time-domain symbols included in a respective wake-up signal waveform type.
13 . The apparatus of claim 10 ,
wherein each waveform sequence of the quantity corresponds to a respective sequence of one or more values.
14 . The apparatus of claim 10 ,
wherein the respective quantities of time domain hypotheses each correspond to a respective quantity of time positions that the UE is capable of monitoring for a wake-up signal waveform of a corresponding wake-up signal waveform type.
15 . The apparatus of claim 10 , wherein the instructions are further executable by the one or more processors to cause the apparatus to:
receive a second capability message from a second UE that indicates a second respective set of one or more wake-up signal parameters associated with one or more second wake-up signal waveform types that are supported by the second UE; and
determine a group of UEs comprising the UE and the second UE based at least in part on the respective set of one or more wake-up signal parameters and the one or more wake-up signal waveform types that are supported by the UE at least partially overlapping with the second respective set of one or more wake-up signal parameters and the one or more second wake-up signal waveform types that are supported by the second UE, wherein the set of wake-up signals comprises a respective group wake-up signal for the group of UEs.
16 . The apparatus of claim 10 , wherein the instructions are further executable by the one or more processors to cause the apparatus to:
determine the set of wake-up signals based at least in part on the respective set of one or more wake-up signal parameters and the one or more wake-up signal waveform types that are supported by the UE.
17 . The apparatus of claim 10 , wherein the one or more wake-up signal waveform types comprise one or more orthogonal frequency division multiplexing waveform types, one or more on-off keying waveform types, or any combination thereof.
18 . A method for wireless communications at a user equipment (UE), comprising:
transmitting a capability message that indicates a respective set of one or more wake-up signal parameters associated with each of one or more wake-up signal waveform types that are supported by the UE, wherein each respective set of one or more wake-up signal parameters comprises at least one of a respective sequence length of the associated wake-up signal waveform type, a quantity of waveform sequences that the UE is capable of concurrently receiving within overlapping frequency resources, a quantity of frequency domain allocation positions that the UE is capable of concurrently monitoring for a wake-up signal waveform, a respective quantity of time domain hypotheses supported by the UE for each wake-up signal waveform type, or any combination thereof;
receiving an indication of a set of wake-up signals to be monitored by the UE, the set of wake-up signals based at least in part on the respective set of one or more wake-up signal parameters and the one or more wake-up signal waveform types that are supported by the UE; and
monitoring, while operating in a low power mode, for at least one wake-up signal of the set of wake-up signals based at least in part on the indication.
19 . The method of claim 18 , further comprising:
receiving an indication of a respective set of sequence parameters associated with each wake-up signal of the set of wake-up signals, a respective frequency position associated with each wake-up signal of the set of wake-up signals, a respective time slot associated with each wake-up signal, or any combination thereof, wherein monitoring for the at least one wake-up signal is further based at least in part on the respective sets of sequence parameters, the respective frequency positions, or the respective time slots, or any combination thereof.
20 . The method of claim 18 ,
wherein the respective sequence lengths each comprise a respective quantity of time-domain symbols included in a respective wake-up signal waveform type.
21 . The method of claim 18 ,
wherein each waveform sequence of the quantity corresponds to a respective sequence of one or more bit values.
22 . The method of claim 18 ,
wherein the respective quantities of time domain hypotheses each correspond to a respective quantity of time positions that the UE is capable of monitoring for a wake-up signal waveform of a corresponding wake-up signal waveform type.
23 . A method for wireless communications at a network entity, comprising:
receiving a capability message that indicates a respective set of one or more wake-up signal parameters associated with each of one or more wake-up signal waveform types that are supported by a user equipment (UE) in communication with the network entity, wherein each respective set of one or more wake-up signal parameters comprises at least one of a respective sequence length of the associated wake-up signal waveform type, a quantity of waveform sequences that the UE is capable of concurrently receiving within overlapping frequency resources, a quantity of frequency domain allocation positions that the UE is capable of concurrently monitoring for a wake-up signal waveform, a respective quantity of time domain hypotheses supported by the UE for each wake-up signal waveform type, or any combination thereof;
transmitting an indication of a set of wake-up signals to be monitored by the UE while operating in a low power mode, the set of wake-up signals based at least in part on the respective set of one or more wake-up signal parameters and the one or more wake-up signal waveform types that are supported by the UE; and
transmitting at least one wake-up signal of the set of wake-up signals based at least in part on the indication.
24 . The method of claim 23 , further comprising:
transmitting an indication of a respective set of sequence parameters associated with each wake-up signal of the set of wake-up signals, a respective frequency position associated with each wake-up signal of the set of wake-up signals, a respective time slot associated with each wake-up signal, or any combination thereof, wherein transmitting the at least one wake-up signal is further based at least in part on the respective sets of sequence parameters, the respective frequency positions, the respective time slots, or any combination thereof.
25 . The method of claim 23 ,
wherein the respective sequence lengths each comprise a respective quantity of time-domain symbols included in a respective wake-up signal waveform type.
26 . The method of claim 23 ,
wherein each waveform sequence of the quantity corresponds to a respective sequence of one or more values.