Wakeup signaling identification

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application and may identify a mapping between an attribute of the signal and an identifier associated with the application. The UE may determine a wakeup procedure in response to receiving the signal based on the mapping between the attribute of the signal and the identifier associated with the application.

FIELD OF TECHNOLOGY

The following relates generally to wireless communications and more specifically to wakeup signaling identification.

BACKGROUND

In some wireless communications systems, a UE may receive wakeup signaling and may perform a wakeup procedure for each received wakeup signal. Conventional methods for performing a wakeup procedure may be improved.

SUMMARY

The described techniques relate to improved methods, systems, devices, and apparatuses that support wakeup signaling identification. Generally, the described techniques support the identification of an application that is associated with received signaling (e.g., wakeup signaling, etc.) such that a user equipment (UE) may determine whether to perform a wakeup procedure in response to the signaling or remain in an idle or sleep state. Such techniques may provide power savings for a UE, because the UE may perform a wakeup procedure for some applications of interest (e.g., safety applications), while not performing a wakeup procedure for other applications. In some cases, a UE may receive a signal (e.g., a sidelink wakeup signal (SWUS)) indicating a wakeup opportunity associated with receiving one or more messages from an application, and identify a mapping between an attribute of the signal and an identifier associated with the application. In some cases, the attribute may include a sequence (e.g., a sequence specific to an application or a subset of applications), or a cyclic shift (e.g., a cyclic shift specific to an application or a subset of applications), or some other attribute of the wakeup signaling. The UE may determine a wakeup procedure in response to receiving the signal based on the mapping. In some examples, the UE may determine that the received signal is associated with an application of interest to the UE based on the mapping and may perform a wakeup procedure. If the UE determines that the received signal is not associated with an application of interest, then the UE may determine not to perform a wakeup procedure.

A method of wireless communications at a UE is described. The method may include receiving a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identifying a mapping between an attribute of the signal and an identifier associated with the application, and determining a wakeup procedure in response to receiving the signal based on the mapping.

An apparatus for wireless communications at a UE is described. The apparatus may include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identify a mapping between an attribute of the signal and an identifier associated with the application, and determine a wakeup procedure in response to receiving the signal based on the mapping.

Another apparatus for wireless communications at a UE is described. The apparatus may include means for receiving a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identifying a mapping between an attribute of the signal and an identifier associated with the application, and determining a wakeup procedure in response to receiving the signal based on the mapping.

A non-transitory computer-readable medium storing code for wireless communications at a UE is described. The code may include instructions executable by a processor to receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identify a mapping between an attribute of the signal and an identifier associated with the application, and determine a wakeup procedure in response to receiving the signal based on the mapping.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining a reference time period associated with receiving the signal and a periodicity associated with receiving the signal based on the attribute of the signal.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the attribute of the signal includes a sequence.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the mapping includes a mapping between a set of sequences and a set of identifiers associated with a set of applications.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the mapping may be based on a modulo function of a number of the set of sequences and an identifier of the set of identifiers associated with the set of applications.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the attribute of the signal includes a cyclic shift.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the mapping includes a mapping between a set of cyclic shifts of a single sequence and a set of identifiers associated with a set of applications.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the mapping may be based on a modulo function of a number of the set of cyclic shifts of the single sequence and an identifier of the set of identifiers associated with the set of applications.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving configuration signaling indicating the attribute of the signal used for the mapping.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the mapping may be based on a mapping at a vehicle to everything (V2X) protocol stack layer.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the mapping may be based on a mapping at a radio resource control (RRC) protocol stack layer.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the signal includes a SWUS.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the identifier associated with the application includes a provider service identifier (PSID) that may be mapped to one or more application specific identifiers.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the PSID may be mapped to an application identifier of the application.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for identifying a monitoring duration configured for monitoring for the one or more messages based on a mapping between the attribute of the signal and a set of monitoring durations.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the monitoring duration includes a number of slots.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the wakeup procedure includes turning on circuitry for monitoring for the one or more messages.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the wakeup procedure includes skipping the wakeup opportunity.

A method of wireless communications at a UE is described. The method may include receiving a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identifying a monitoring duration for monitoring for the one or more messages based on a mapping between an attribute of the signal and a set of monitoring durations, and monitoring for the one or more messages based on the monitoring duration.

An apparatus for wireless communications at a UE is described. The apparatus may include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identify a monitoring duration for monitoring for the one or more messages based on a mapping between an attribute of the signal and a set of monitoring durations, and monitor for the one or more messages based on the monitoring duration.

Another apparatus for wireless communications at a UE is described. The apparatus may include means for receiving a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identifying a monitoring duration for monitoring for the one or more messages based on a mapping between an attribute of the signal and a set of monitoring durations, and monitoring for the one or more messages based on the monitoring duration.

A non-transitory computer-readable medium storing code for wireless communications at a UE is described. The code may include instructions executable by a processor to receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identify a monitoring duration for monitoring for the one or more messages based on a mapping between an attribute of the signal and a set of monitoring durations, and monitor for the one or more messages based on the monitoring duration.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the monitoring duration includes a number of slots.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the mapping between the attribute of the signal and the set of monitoring durations includes a one-to-one mapping between sequences of the signal and the set of monitoring durations.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the mapping between the attribute of the signal and the set of monitoring durations includes a one-to-many mapping between sequences of the signal and the set of monitoring durations.

DETAILED DESCRIPTION

Some wireless communications systems (e.g., vehicle-to-pedestrian (V2P), pedestrian-to-vehicle (P2V)) may be used to increase the safety of a pedestrian. In some cases, a vehicle user equipment (UE) (e.g., a UE that is on board or otherwise associated with a vehicle) may transmit a paging indication to a pedestrian UE (e.g., a UE carried by or otherwise associated with a pedestrian) for one or more applications such as a safety application, or global positioning system (GPS) application, etc. For example, when a pedestrian UE is in or headed toward an unsafe position (e.g., moving toward or currently in a collision course with one or more other vehicle UEs) a vehicle UE may transmit a paging indication to the pedestrian UE to alert the pedestrian. In some cases, a pedestrian UE may be configured to perform a wakeup procedure in response to each paging indication (e.g., wakeup signal) the pedestrian UE receives, and a pedestrian UE may not be able to determine which application the received wakeup signal is associated with until after the pedestrian UE wakes up and begins decoding messages. In some systems, the pedestrian UE may be configured to wakeup upon the reception of each wakeup signal, even if the pedestrian UE is not interested in the application associated with a given wakeup signal. This paging procedure may lead to an inefficient use of resources and may place a power burden on a pedestrian UE.

To mitigate the power consumption of a UE (e.g., a pedestrian UE), a wireless communications system that supports sidelink communications (e.g., communications between a vehicle UE and pedestrian UE) may be configured to support mapping between identifiers of an application (e.g., application-specific identifiers, provider service identifiers (PSID), etc.) and attributes of wakeup signals (e.g., sequence identifiers, cyclic shifts, etc.) such that a UE may identify an application based on an attribute of the wakeup signal and determine whether to perform a wakeup procedure based on the identification of the application. In some cases, more than one wakeup signal sequence (e.g., sidelink wakeup signal (SWUS) sequence) may be preconfigured such that each wakeup signal sequence may be mapped to a different application ID. Additionally or alternatively, multiple applications of interest to the pedestrian UE may be grouped into one or more identifiers, such as a PSID, that may then be mapped to a wakeup signal sequence. Additionally or alternatively, the pedestrian UE may be preconfigured with one wakeup signal sequence, where different cyclic shifts of that sequence may be mapped to a PSID or another application specific ID.

In some cases, an attribute of a wakeup signal may indicate a duration (e.g., in slots) of an opportunity for receiving messages from a UE associated with the wakeup signal. Such a duration may be referred to as an ON duration.

In accordance with aspects of the present disclosure, a UE may use the mapping between application identifiers and attributes of wakeup signaling to determine which wakeup signals to wake up for based on the applications of interest to the UE. A UE may perform a wakeup procedure for the wakeup signals associated with the applications of interest to the UE, but may remain in an idle or sleep state (e.g., not perform a wakeup procedure or skip a wakeup opportunity) for wakeup signals associated with applications not of interest to the UE. As such, a UE may conserve power by reducing the frequency the pedestrian UE wakes up in response to wakeup signaling.

Particular aspects of the subject matter described herein may be implemented to realize one or more advantages. The described techniques may support improvements in a UE wakeup procedure by decreasing unnecessary wakeup occurrences, and mitigating power consumption at the UE, among other advantages. As such, supported techniques may include improved network operations and, in some examples, may promote network efficiencies, among other benefits.

Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects are then described with respect to protocol stack layers, a resource configuration, and process flows. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to wakeup signaling identification.

In some systems, the D2D communication link135may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs115). In some examples, vehicles may communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these. A vehicle may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or with the network via one or more network nodes (e.g., base stations105) using vehicle-to-network (V2N) communications, or with both. In some cases, V2X communications may include V2P and P2V communications that support communications between a vehicle UE115and a pedestrian UE (e.g., pedestrian UE115-a. A vehicle UE115and pedestrian UE115-amay communicate over sidelink135.

To mitigate the power consumption of a UE115(e.g., a UE115-a), the wireless communications system100may support sidelink communications (e.g., over communication link135) between a vehicle UE115and pedestrian UE115-athat support mapping between an application ID and a wakeup signal attribute. In some cases, and attribute of a wakeup signal (e.g., a SWUS) may be mapped to an application ID. In some cases, the attribute may include a sequence of the wakeup signal such that each application or a subset of applications may be mapped to a unique wakeup signal sequence. Additionally or alternatively, the attribute may include a cyclic shift such that each application ID or a subset of application IDs are mapped to a different cyclic shift of the same wakeup signal sequence. The pedestrian UE115-amay use the preconfigured mapping and may determine which wakeup signals the UE115-amay wake up for based on the applications of interest to the pedestrian UE115-a. The pedestrian UE115-amay monitor for all wakeup signals, and perform a wakeup procedure for the wakeup signals associated with the applications of interest to the UE115-a. In some cases, each wakeup signal sequence may indicate an ON duration that may be used by the pedestrian UE115-ato monitor for transmissions from the vehicle UE115and to decode the received transmissions. As such, the pedestrian UE115-amay conserve power by mitigating how frequently the pedestrian UE115-awakes up.

FIG.2illustrates an example of a wireless communications system200that supports wakeup signaling identification in accordance with aspects of the present disclosure. The wireless communications system200may include base station105-aand UE115-b, and UE115-c, which may be examples of a base station105and UEs115as described with reference toFIG.1. UE115-bmay be referred to as a vehicle UE, and UE115-cmay be referred to as a pedestrian UE. Base station105-amay serve a geographic coverage area110-a. In some cases, pedestrian UE115-cmay implement a wakeup determination procedure. For example, pedestrian UE115-cmay determine whether to perform a wakeup procedure based on an attribute of a received wakeup signal and preconfigured mapping between attributes of the wakeup signal and applications supported by the UE115-c. Additionally or alternatively, other wireless devices, such as base station105-aand vehicle UE115-b, or some combination of these devices, may implement a wakeup determination procedure.

In some wireless communications systems, base station105-aand vehicle UE115-bmay communicate. For example, base station105-amay transmit signals to vehicle UE115-bvia downlink210, and vehicle UE115-bmay transmit signals to base station105-avia uplink205. In some wireless communication systems (e.g., V2X, V2P, P2V, D2D), vehicle UE115-band pedestrian UE115-cmay communicate via sidelink channels. For example, vehicle UE115-bmay transmit signals to pedestrian UE115-cvia sidelink215-band pedestrian UE115-cmay transmit signals to vehicle UE115-bvia sidelink215-a. In some cases, base station105-amay configure vehicle UE115-band pedestrian UE115-c. In some cases, vehicle UE115-bmay relay messages between base station105-aand pedestrian UE115-c. In some cases, pedestrian UE115-cmay directly communicate with base station105-a.

In some examples, vehicle UE115-bmay be configured to transmit signals (e.g., paging messages, wakeup signals, etc.) to pedestrian UE115-cthat are associated with applications220. In some cases, the applications220may include a safety application, GPS application, emergency notification applications (e.g., flash flood, Amber alert), etc. To conserve power, the pedestrian UE115-cmay enter a lower power state (e.g., an OFF, semi-OFF, idle, sleep or any other state where one or more circuitry of the UE are powered off) until pedestrian UE115-creceives a wakeup signal225from vehicle UE115-bover sidelink215-b. In some wireless communications systems, vehicle UE115-bmay transmit the same wakeup signal225to pedestrian UE115-cfor each application220, and the pedestrian UE115-cmay be configured to wake up in response to each wakeup signal225. As such, pedestrian UE115-cmay perform a wakeup procedure for each received wakeup signal225without knowing which application220the wakeup signal225is associated with. In some cases, a pedestrian UE115-cthat performs a wakeup procedure for each received wakeup signal225may have high power consumption or otherwise result in inefficient power usage. To mitigate the power consumption of the pedestrian UE115-c, a pedestrian UE115-cmay be configured to perform a wakeup procedure for a subset of applications220, such as the applications that are of interest to pedestrian UE115-c. As such, wakeup signals225may be configured to a have a unique or identifiable attribute such that pedestrian UE115-cmay determine if the received wakeup signal225is associated with an application220of interest to pedestrian UE115-c.

Pedestrian UE115-cand vehicle UE115-bmay be configured with a mapping between an attribute of a wakeup signal225and the application220the wakeup signal225is associated with. In some cases, base station105-amay determine the mapping and indicate the mapping to vehicle UE115-b, or pedestrian UE115-c, or a combination thereof. In some cases, vehicle UE115-bmay indicate the mapping to UE115-c. In some cases, vehicle UE115-band pedestrian UE115-cmay be preconfigured with the mapping.

Each application220may be associated with a unique application ID. In some cases, each application ID may be mapped to a SWUS sequence (e.g., via an index or some other sequence identifier). In some cases, each application ID may be mapped to another ID, such as a PSID or wakeup signal identifier (WUSID), and each PSID (or WUSID) may be mapped to a SWUS sequence. A WUSID may be a lower layer identifier and may not be an application specific identifier, and a PSID may be an application specific identifier. In some examples, a subset of applications may be mapped with the same ID. For example, a subset of applications may be mapped with the same PSID or the same WUSID, or a combination thereof, and the PSID (or WUSID) may be mapped to a SWUS sequence. As such, some number of SWUS sequences may be configured (e.g., N SWUS sequences). The SWUS sequences that the pedestrian UE115-cshould wakeup for may be determined by the pedestrian UE115-cbased on a function. In some cases, the function may be a modulo function of the number of SWUS sequences (e.g., N SWUS sequences) and an identifier (e.g., PSID, WUSID). For example, if the SWUS sequences are mapped to PSIDs, the function may be PSID mod N, where PSID is the PSID sequence associated with an application, or applications of interest, and N is the number of configured SWUS sequences. In another example, if the SWUS sequences are mapped to WUSIDs, the function may be WUSID mod N, where WUSID is the WUSID sequence associated with an application, or applications of interest, and N is the number of configured SWUS sequences.

For example, pedestrian UE115-cmay be interested in multiple applications220. Each application220may be mapped to a WUSID, such as WUSID1 and WUSID2.

Pedestrian UE115-cmay determine based on the functions, WUSID1 mod N and WUSID2 mod N, the SWUS sequences pedestrian UE115-cshould wake up for. Upon reception of a SWUS sequence, pedestrian UE115-cmay partially wakeup to receive and decode the wakeup signal225. Pedestrian UE115-cmay autonomously determine whether to perform a wakeup procedure (e.g., fully wake up) based on the previous determination of SWUS sequences that pedestrian UE115-cshould wake up for. If the received SWUS sequence matches a SWUS sequence from the previous determination, then pedestrian UE115-cmay perform a wakeup procedure and fully wakeup. If the received SWUS sequence does not match a SWUS sequence from the previous determination, then pedestrian UE115-cmay not perform a wakeup procedure. Not performing a wakeup procedure may include skipping an opportunity for waking up and may include remaining in an idle, low power, sleep, or similar power state.

In some examples, pedestrian UE115-cmay be able to determine when and how frequently a SWUS sequence associated with an application or applications of interest will be received. As such, an identifier (e.g., PSID, WUSID) may implicitly map to a reference point, such as a starting slot, subframe, symbol, etc. for a wakeup signal225. Additionally or alternatively, the identifier may map to periodicity associated with a wakeup signal225. For example, each wakeup signal225associated with an application or set of applications may be assigned an initial starting slot and a transmission periodicity. The identifier associated with each application may map the starting slot and periodicity for each wakeup signal225. For the pedestrian UE115-cto be able to determine when and how frequently the SWUS sequences associated with an application of interest will be received, a number, B, may be defined for the number of possible tuples including start slot time, and periodicity for different SWUS sequences. The reference slot (e.g., start slot) and periodicity associated with a certain PSID may be given by PSID mod B. Pedestrian UE115-cmay determine one or more PSIDs that are associated with an application or applications of interest and input the PSID into the modulo function to determine the reference slot and periodicity associated with each PSID. Pedestrian UE115-cmay then monitor according to the reference slot and periodicity for the SWUS sequence.

In some cases, pedestrian UE115-cand vehicle UE115-bmay be configured with a single SWUS sequence and the cyclic shift of that sequence may be mapped to one or more PSIDs (or other application IDs). For example, each application may be assigned a PSID, and each PSID may be assigned a cyclic shift that may be applied to the wakeup signal sequence. Pedestrian UE115-cmay determine that the one or more PSIDs that are associated with the application or applications of interest to pedestrian UE115-cand determine the cyclic shift associated with each determined PSIDs. Upon reception of each wakeup signal sequence, if the determined cyclic shift and the received cyclic shift of the SWUS sequence match, then pedestrian UE115-cmay determine that pedestrian UE115-cshould wake up. In some cases, the preconfigured SWUS sequence, {x[n]}, may be of length, L and pedestrian UE115-cmay be configured with a number, M, of possible cyclic shifts that are possible for determining different SWUS sequences for the single SWUS sequence. The specific cyclic shift, d, to be used by pedestrian UE115-cmay be determined by the function, PSID mod M. Pedestrian UE115-cmay then determine the SWUS sequence shifted based on the cyclic shift by the function, {x[(n−d) mod L]}.

FIG.3illustrates an example of protocol stack layers300that support wakeup signaling identification in accordance with aspects of the present disclosure. The protocol stack layers300may implemented by a base station105, or UEs115, which may be examples of a base station105and UEs115as described with reference toFIGS.1and2. UEs may include vehicle UEs, and pedestrian UEs. In some cases, a pedestrian UE may implement a wakeup determination procedure. For example, a pedestrian UE may determine whether to perform a wakeup procedure based on an attribute of a received wakeup signal and preconfigured mapping between attributes and applications, where the mapping may be configured in the V2X layer. Additionally or alternatively, other wireless devices, such as a base station and vehicle UE, or some combination of these devices, may implement a wakeup determination procedure.

As described herein, a device, such as a vehicle UE or pedestrian UE, may be configured to support multiple applications. In some cases, applications may be specific to the communications between the pedestrian UE and vehicle UE, such as in a V2X, V2P, P2V, etc. supported networks. For example, a vehicle UE and pedestrian UE may be configured to support application-1305-aand application-2305-b. Application-1305-aand application-2305-bmay each be applications relating to safety, or each application may be unrelated. Application-1305-a, or application-2305-b, or both may be applications of interest to a pedestrian UE115as described herein.

In some examples, each application may be associated with one or more services. In some cases, each application may include various services310that support functionality of the applications, where a service310may be some function the application may perform. In some cases, a service310may be a category an application supports such as road safety, where more than one application may support a service310. For example, application-1305-amay be associated with V2X service-A310-aand V2X service-B310-b, and application-2305-bmay be associated with V2X service-A310-cand V2X service-B310-d, where the services310may be a function or a category supported by the application.

In some cases, each application may provide requirements associated with monitoring for paging messages to the V2X layer315. The V2X layer315may assign one or more identifiers (e.g., PSIDs, WUSIDs) based on the applications request to monitor for sidelink paging messages. The identifiers may be mapped to a sidelink wakeup sequence using one of the methods described with reference toFIG.2. For example, within the V2X layer315, each application ID may be mapped to a PSID or WUSID at320, or multiple application IDs may be mapped to a single PSID or WUSID. The PSIDs or WUSIDs may then be mapped to a wakeup signal sequence at325. The mapping configured in the V2X layer315may be communicated to lower layers such as service data adaption protocol (SDAP) layer330, PDCP layer335, RLC layer340, and MAC/PHY layer345. As such, each layer in the protocol stack layers300may support the mapping configured in V2X layer315.

FIG.4illustrates an example of protocol stack layers400that support wakeup signaling identification in accordance with aspects of the present disclosure. The protocol stack layers400may implemented by a base station105, or UEs115, which may be examples of a base station105and UEs115as described with reference toFIGS.1and2. UEs may include vehicle UEs, and pedestrian UEs. In some cases, a pedestrian UE may implement a wakeup determination procedure. For example, a pedestrian UE may determine whether to perform a wakeup signal based on an attribute of a received wakeup signal and preconfigured mapping between attributes and applications, where the mapping may be configured in the RRC layer. Additionally or alternatively, other wireless devices, such as a base station and vehicle UE, or some combination of these devices, may implement a wakeup determination procedure.

As described herein, a device, such as a vehicle UE or pedestrian UE, may be configured to support multiple applications. In some cases, applications may be specific to the communications between the pedestrian UE and vehicle UE, such as in a V2X, V2P, P2V, etc. supported networks. For example, a vehicle UE and pedestrian UE may be configured to support application-1405-aand application-2405-b. Application-1405-aand application-2405-bmay each be applications relating to safety, or each application may be unrelated. Application-1405-a, or application-2405-b, or both may be applications of interest to a pedestrian UE115as described herein.

In some implementations, each application may be associated with one or more services. In some cases, each application may include various services410that support functionality of the applications, where a service410may be some function the application may perform. In some cases, a service410may be a category an application supports such as road safety, where more than one application may support a service410. For example, application-1305-amay be associated with V2X service-A410-aand V2X service-B410-b, and application-2305-bmay be associated with V2X service-A410-cand V2X service-B410-d, where the services410may be a function or a category supported by the application.

In some cases, each application may provide requirements associated with monitoring for paging messages to the V2X layer415, to SDAP layer420, and then to RRC layer425. The RRC layer425may assign one or more identifiers (e.g., PSIDs, WUSIDs) based on the applications request to monitor for sidelink paging messages. The identifiers may be mapped to a sidelink wakeup sequence using one of the methods described with reference toFIG.2. Alternately, the RRC layer425may use one or more identifiers (e.g., PSIDs, WUSIDs) assigned by other layers (e.g., application layer, SDAP layer, or V2X layer) to map the one or more identifiers to a sidelink wakeup sequence using one of the methods described herein. For example, within the RRC layer425, each application ID may be mapped to a PSID or WUSID at430, or multiple application IDs may be mapped to a single PSID or WUSID. Additionally or alternatively, the application IDs may be mapped to a PSID or WUSID in the V2X layer415, and the configured PSIDs or WUSIDs may be relayed to RRC layer425. The PSIDs or WUSIDs may then be mapped to a wakeup signal sequence at435. The mapping configured in the RRC layer425may be communicated to lower layers such as PDCP layer440, RLC layer445, and MAC/PHY layer450. As such, each layer in the protocol stack layers400may support the mapping configured in RRC layer425. In some cases, a base station may transmit an RRC configuration message to the vehicle UE, or pedestrian UE, or both to indicate a mapping configuration or option used to map the wakeup signaling attributes to the application identifiers. For example, the RRC configuration message may indicate whether the application identifiers are mapped to different cyclic shifts of a single SWUS sequence, whether the application identifiers are mapped to multiple SWUS sequences (e.g., SL-SWUS-MappingInfo: {Options} INTEGER (1, 2, . . . )).

FIG.5illustrates an example of a resource configuration500that supports wakeup signaling identification in accordance with aspects of the present disclosure. The resource configuration500may be implemented by vehicle UEs and pedestrian UEs which may be examples UEs115as described with reference toFIGS.1through4. In some cases, a pedestrian UE115may determine a monitoring duration in resource configuration500based on a wakeup signal. For example, pedestrian UE115-cmay determine a monitoring duration for monitoring signals associated with a wakeup signal based on a mapping between wakeup signal attributes and monitoring durations. Additionally or alternatively, other wireless devices, such as base stations and vehicle UEs, or some combination of these devices, may implement a monitoring determination procedure.

In some examples, a wakeup signal (e.g., SWUS) received by a pedestrian UE from a vehicle UE may indicate a monitoring duration (e.g., an ON duration) for the pedestrian UE to monitor signals from a vehicle UE associated with the wakeup signal. As such, resources may be configured to support such monitoring duration. In some wireless communications systems, such as V2P, or P2V, a resource pool may be allocated to vehicle and pedestrian UEs for communications between the vehicle and pedestrian UEs. For example, vehicle and pedestrian UEs may be allocated P2V/V2P resource pools505. As such, vehicle and pedestrian UEs may communicate during resource pools505, and may not communicate during non-P2V/V2P resource pools,510. In some cases, the number of slots included in the P2V/V2P resource pool505may be indicated by W. As depicted inFIG.5, W is equal to one slot, but W may be any number of slots. Additionally or alternatively, W may refer to a duration of time, or any notation of time (e.g., symbols, subframes). The periodicity of P2V/V2P resource allocation may be equal to T slots or subframes. For example, P2V/V2P resource allocation may occur once every T slots.

The P2V/V2P resource pools505may include a P2V specific resource pool that may be allocated for a pedestrian UE to transmit to a vehicle UE. In some cases, multiple pedestrian UEs may transmit to one or more vehicle UEs during the P2V resource pool515. The P2V/V2P resource pools505may also include a wakeup signal520(e.g., SWUS). The wakeup signal520may be referred to as a paging indicator resource that a vehicle UE may use to indicate to a pedestrian UE whether there is a page for the pedestrian UE. If there is a page for the pedestrian UE, then a monitoring duration (e.g., an ON duration) may be configured for V2P, such as V2P resource pool525. V2P resource pool525may be used by a vehicle UE and a pedestrian UE such that a vehicle UE may transmit signals to the pedestrian UE during the resource pool, and the pedestrian UE may monitor for signals from the vehicle UE during the V2P resource pool525. The V2P resource pool525may be a non-dedicated pool that is only allocated when there is a wakeup signal of interest received by the pedestrian UE. In some implementations, the P2V resource pool515may be allocated a duration m1, the wakeup signal520may be allocated a duration mo, and the V2P resource pool525may be allocated a duration m2. In some cases, m1may indicate a duration of time, or a number of slots, symbols subframes, etc. of f1subchannels, channels, PRBs, etc. In some cases, momay indicate a duration of time, or a number of slots, subframes, symbols, etc. that may span foPRBs in a slot. In some cases, m2may indicate a duration of time, or a number of slots, subframes, symbols, etc. of f2subchannels, channels, PRBs, etc. As such, the configuration parameters for V2P/P2V communications may include T, W, m1, m0, m2, f1, f0, and f2.

In some cases, each wakeup signal may be configured with a different m2. To indicate the duration of m2to a pedestrian UE the duration of m2may be mapped to a SWUS sequence or cyclic shift of the SWUS sequence. In some implementations, a number, K, of monitoring durations (e.g., V2P resource pools525) may be preconfigured and a number, N, of SWUS sequence may be preconfigured. In some cases, one-to-one mapping may be used to map each SWUS sequence to each monitoring duration, where K=N. In some implementations, one-to-many mapping may be used to map the SWUS sequences to monitoring durations, where K≤N. In an example, SWUS sequence, {S1, S2} may denote a monitoring duration a first duration of m2, such as m2=100 slots, while a SWUS sequence {S3} may denote a second duration of m2, such as m2=50 slots. In another example, a pedestrian UE may receive a SWUS sequence (e.g., {S1}, i∈N) during moand may determine the duration of m2to enter an ON state and monitor and decode messages from the vehicle UE.

FIG.6illustrates an example of a process flow600that supports wakeup signaling identification in accordance with aspects of the present disclosure. The process flow600may illustrate an example wakeup determination procedure. For example, pedestrian UE115-dmay determine whether to perform a wakeup procedure for a wakeup signal transmitted by vehicle UE115-e. Pedestrian UE115-dand vehicle UE115-emay be examples of the corresponding wireless devices described with reference toFIGS.1through5. Although the example process flow600is illustrated in the context of a pedestrian UE115-dand a vehicle UE115-ein the context of vehicle to pedestrian system, it should be understood that the steps of process flow600may be performed by any UE115or network device. In some cases, instead of pedestrian UE115-aperforming the wakeup determination procedure, vehicle UE115-emay perform the wakeup signal determination procedure. Alternative examples of the following may be implemented, where some steps are performed in a different order than described or are not performed at all. In some cases, steps may include additional features not mentioned below, or further steps may be added.

At605, vehicle UE115-emay transmit, to pedestrian UE115-d, a signal (e.g., a SWUS or some other wakeup or paging signaling) indicating a wakeup opportunity associated with receiving one or more messages from an application. In some cases, the signal may be a wakeup signal that may be associated with an application (e.g., a safety application, GPS application, emergency application). In some instances, pedestrian UE115-dmay be determine applications that are of interest to the pedestrian UE115-a(e.g., safety applications).

At610, pedestrian UE115-dmay identify a mapping between an attribute of the signal and an identifier associated with the application. In some cases, the attribute of the signal may be a sequence (e.g., a sequence identifier, sequence index, etc.), where the signal sequence may map to (or otherwise indicate) a specific application or multiple applications. In some cases, the attribute of the signal may be a cyclic shift of a single sequence, where the cyclic shift applied to the received signal may map to (or otherwise indicate) a specific application or to multiple applications. The pedestrian UE115-dmay receive the signal, determine the attribute of the received signal, and determine the application the attribute maps to or indicates. In some cases, the attribute may map to an application of interest to pedestrian UE115-d.

At615, pedestrian UE115-dmay determine a wakeup procedure in response to receiving the signal based on the mapping. In some cases, determining a wakeup procedure may include determining to perform a wakeup procedure if the attribute of the signal mapped to an application of interest to pedestrian UE115-d. In some cases, determining a wakeup procedure may include determining to skip an opportunity for waking up and may include remaining an idle, low power, sleep, or similar power state based on a determination that the application indicated by the wakeup signal is not an application of interest to the pedestrian UE115-d.

In some cases, at620, pedestrian UE115-dmay perform a wakeup procedure (e.g., turn on circuitry such as antennas or receive chains). In some cases, pedestrian UE115-dmay identifying a monitoring duration configured for monitoring one or more messages based on a mapping between the attribute of the signal and a set of monitoring durations. In some cases, the monitoring duration may be an ON duration. For example, UE115-dmay identifying a monitoring duration indicated by the signal that is associated with an application of interest to pedestrian UE115-d. In some cases, the monitoring duration may be preconfigured and associated with a specific wakeup signal, or application, or both. Pedestrian UE115-dmay wakeup for the monitoring duration to monitor for one or more messages. In some cases, the monitoring duration may include a number of slots, symbols, subframes, etc.

FIG.7illustrates an example of a process flow700that supports wakeup signaling identification in accordance with aspects of the present disclosure. The process flow700may illustrate an example wakeup monitoring procedure. For example, pedestrian UE115-fmay determine to monitor for signals based on a wakeup signal transmitted by vehicle UE115-g. Pedestrian UE115-fand vehicle UE115-gmay be examples of the corresponding wireless devices described with reference toFIGS.1through6. In some cases, instead of pedestrian UE115-aperforming the wakeup monitoring procedure, vehicle UE115-fmay perform the wakeup monitoring procedure. Alternative examples of the following may be implemented, where some steps are performed in a different order than described or are not performed at all. In some cases, steps may include additional features not mentioned below, or further steps may be added.

At705, vehicle UE115-gmay transmit, to pedestrian UE115-f, a signal (e.g., a SWUS) indicating a wakeup opportunity associated with receiving one or more messages from an application.

At710, pedestrian UE115-fmay identify a monitoring duration for monitoring for the one or more messages based on a mapping between an attribute (e.g., sequence, cyclic shift) of the signal and a set of monitoring durations. For example, the attribute of the received signal may be mapped to an application and may be mapped to a monitoring duration. In some implementations, the mapping between the attribute of the signal and the set of monitoring durations includes a one-to-one mapping between sequences of the signal and the set of monitoring durations. In some implementations, the mapping between the attribute of the signal and the set of monitoring durations includes a one-to-many mapping between sequences of the signal and the set of monitoring durations. In some cases, the pedestrian UE115-fmay receive a signal that maps to an application of interest to the pedestrian UE115-f. The pedestrian UE115-fmay determine the monitoring duration based on the mapping.

At715, pedestrian UE115-fmay monitor for the one or more messages based on the monitoring duration. In some cases, the monitoring duration may be a number of slots, symbols, subframes, etc.

The receiver810may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to wakeup signaling identification, etc.). Information may be passed on to other components of the device805. The receiver810may be an example of aspects of the transceiver1120described with reference toFIG.11. The receiver810may utilize a single antenna or a set of antennas.

The communications manager815may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identify a mapping between an attribute of the signal and an identifier associated with the application, and determine a wakeup procedure in response to receiving the signal based on the mapping. The communications manager815may also receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identify a monitoring duration for monitoring for the one or more messages based on a mapping between an attribute of the signal and a set of monitoring durations, and monitor for the one or more messages based on the monitoring duration. The communications manager815may be an example of aspects of the communications manager1110described herein.

The transmitter820may transmit signals generated by other components of the device805. In some examples, the transmitter820may be collocated with a receiver810in a transceiver module. For example, the transmitter820may be an example of aspects of the transceiver1120described with reference toFIG.11. The transmitter820may utilize a single antenna or a set of antennas.

The communications manager815as described herein may be implemented to realize one or more potential advantages. One implementation may allow the device805to more efficiently utilize resource and determine whether to wake up for a wakeup signal from a vehicle UE115. For example, a device805may receive multiple wakeup signals from a vehicle UE115and the device may determine whether the wakeup signal is associated with an application of interest to the device805rather than wakeup for each received wakeup signal.

Based on implementing the wakeup procedure determination techniques as described herein, a processor of a UE115(e.g., controlling the receiver810, the transmitter820, or the transceiver1120as described with reference toFIG.11) may increase efficiency and mitigate power consumption in wakeup signal procedure performed by the UE115.

The communications manager915may be an example of aspects of the communications manager815as described herein. The communications manager915may include a wakeup signal manager920, a wakeup signal mapping manager925, a wakeup procedure determination manager930, and a message monitoring manager935. The communications manager915may be an example of aspects of the communications manager1110described herein.

The wakeup signal manager920may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application. The wakeup signal mapping manager925may identify a mapping between an attribute of the signal and an identifier associated with the application. The wakeup procedure determination manager930may determine a wakeup procedure in response to receiving the signal based on the mapping.

The wakeup signal manager920may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application. The wakeup signal mapping manager925may identify a monitoring duration for monitoring for the one or more messages based on a mapping between an attribute of the signal and a set of monitoring durations. The message monitoring manager935may monitor for the one or more messages based on the monitoring duration.

The transmitter940may transmit signals generated by other components of the device905. In some examples, the transmitter940may be collocated with a receiver910in a transceiver module. For example, the transmitter940may be an example of aspects of the transceiver1120described with reference toFIG.11. The transmitter940may utilize a single antenna or a set of antennas.

FIG.10shows a block diagram1000of a communications manager1005that supports wakeup signaling identification in accordance with aspects of the present disclosure. The communications manager1005may be an example of aspects of a communications manager815, a communications manager915, or a communications manager1110described herein. The communications manager1005may include a wakeup signal manager1010, a wakeup signal mapping manager1015, a wakeup procedure determination manager1020, a wakeup signal timing manager1025, a monitoring duration manager1030, and a message monitoring manager1035. Each of these modules may communicate, directly or indirectly, with one another (e.g., via one or more buses).

The wakeup signal manager1010may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application. The wakeup signal mapping manager1015may identify a mapping between an attribute of the signal and an identifier associated with the application. The wakeup procedure determination manager1020may determine a wakeup procedure in response to receiving the signal based on the mapping.

The wakeup signal timing manager1025may determine a reference time period associated with receiving the signal and a periodicity associated with receiving the signal based on the attribute of the signal.

In some examples, the wakeup signal manager1010may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application. In some examples, the wakeup signal manager1010may receive configuration signaling indicating the attribute of the signal used for the mapping. In some cases, the attribute of the signal includes a sequence. In some cases, the attribute of the signal includes a cyclic shift. In some cases, the signal includes a SWUS.

In some cases, the mapping includes a mapping between a set of sequences and a set of identifiers associated with a set of applications. In some cases, the mapping is based on a modulo function of a number of the set of sequences and an identifier of the set of identifiers associated with the set of applications.

In some cases, the mapping includes a mapping between a set of cyclic shifts of a single sequence and a set of identifiers associated with a set of applications. In some cases, the mapping is based on a modulo function of a number of the set of cyclic shifts of the single sequence and an identifier of the set of identifiers associated with the set of applications.

In some cases, the mapping is based on a mapping at a vehicle to everything protocol stack layer. In some cases, the mapping is based on a mapping at an RRC protocol stack layer. In some cases, the identifier associated with the application includes a PSID that is mapped to one or more application specific identifiers. In some cases, the PSID is mapped to an application identifier of the application.

The monitoring duration manager1030may identify a monitoring duration configured for monitoring for the one or more messages based on a mapping between the attribute of the signal and a set of monitoring durations. In some cases, the monitoring duration includes a number of slots.

In some cases, the wakeup procedure includes turning on circuitry for monitoring for the one or more messages. In some cases, the wakeup procedure includes skipping the wakeup opportunity.

The wakeup signal manager1010may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application. In some examples, the wakeup signal mapping manager1015may identify a monitoring duration for monitoring for the one or more messages based on a mapping between an attribute of the signal and a set of monitoring durations. The message monitoring manager1035may monitor for the one or more messages based on the monitoring duration.

In some cases, the monitoring duration includes a number of slots. In some cases, the mapping between the attribute of the signal and the set of monitoring durations includes a one-to-one mapping between sequences of the signal and the set of monitoring durations. In some cases, the mapping between the attribute of the signal and the set of monitoring durations includes a one-to-many mapping between sequences of the signal and the set of monitoring durations.

FIG.11shows a diagram of a system1100including a device1105that supports wakeup signaling identification in accordance with aspects of the present disclosure. The device1105may be an example of or include the components of device805, device905, or a UE115as described herein. The device1105may include components for bi-directional voice and data communications including components for transmitting and receiving communications, including a communications manager1110, an I/O controller1115, a transceiver1120, an antenna1125, memory1130, and a processor1140. These components may be in electronic communication via one or more buses (e.g., bus1145).

The communications manager1110may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identify a mapping between an attribute of the signal and an identifier associated with the application, and determine a wakeup procedure in response to receiving the signal based on the mapping. The communications manager1110may also receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application, identify a monitoring duration for monitoring for the one or more messages based on a mapping between an attribute of the signal and a set of monitoring durations, and monitor for the one or more messages based on the monitoring duration.

The I/O controller1115may manage input and output signals for the device1105. The I/O controller1115may also manage peripherals not integrated into the device1105. In some cases, the I/O controller1115may represent a physical connection or port to an external peripheral. In some cases, the I/O controller1115may utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS/2®, UNIX®, LINUX®, or another known operating system. In other cases, the I/O controller1115may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I/O controller1115may be implemented as part of a processor. In some cases, a user may interact with the device1105via the I/O controller1115or via hardware components controlled by the I/O controller1115.

In some cases, the wireless device may include a single antenna1125. However, in some cases the device may have more than one antenna1125, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.

The memory1130may include random-access memory (RAM) and read-only memory (ROM). The memory1130may store computer-readable, computer-executable code1135including instructions that, when executed, cause the processor to perform various functions described herein. In some cases, the memory1130may contain, among other things, a basic I/O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.

The code1135may include instructions to implement aspects of the present disclosure, including instructions to support wireless communications. The code1135may be stored in a non-transitory computer-readable medium such as system memory or other type of memory. In some cases, the code1135may not be directly executable by the processor1140but may cause a computer (e.g., when compiled and executed) to perform functions described herein.

At1205, the UE may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application. The operations of1205may be performed according to the methods described herein. In some examples, aspects of the operations of1205may be performed by a wakeup signal manager as described with reference toFIGS.8through11.

At1210, the UE may identify a mapping between an attribute of the signal and an identifier associated with the application. The operations of1210may be performed according to the methods described herein. In some examples, aspects of the operations of1210may be performed by a wakeup signal mapping manager as described with reference toFIGS.8through11.

At1215, the UE may determine a wakeup procedure in response to receiving the signal based on the mapping. The operations of1215may be performed according to the methods described herein. In some examples, aspects of the operations of1215may be performed by a wakeup procedure determination manager as described with reference toFIGS.8through11.

FIG.13shows a flowchart illustrating a method1300that supports wakeup signaling identification in accordance with aspects of the present disclosure. The operations of method1300may be implemented by a UE115or its components as described herein. For example, the operations of method1300may be performed by a communications manager as described with reference toFIGS.8through11. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, a UE may perform aspects of the functions described below using special-purpose hardware.

At1305, the UE may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application. The operations of1305may be performed according to the methods described herein. In some examples, aspects of the operations of1305may be performed by a wakeup signal manager as described with reference toFIGS.8through11.

At1310, the UE may identify a mapping between an attribute of the signal and an identifier associated with the application. The operations of1310may be performed according to the methods described herein. In some examples, aspects of the operations of1310may be performed by a wakeup signal mapping manager as described with reference toFIGS.8through11.

At1315, the UE may determine a reference time period associated with receiving the signal and a periodicity associated with receiving the signal based on the attribute of the signal. The operations of1315may be performed according to the methods described herein. In some examples, aspects of the operations of1315may be performed by a wakeup signal timing manager as described with reference toFIGS.8through11.

At1320, the UE may determine a wakeup procedure in response to receiving the signal based on the mapping. The operations of1320may be performed according to the methods described herein. In some examples, aspects of the operations of1320may be performed by a wakeup procedure determination manager as described with reference toFIGS.8through11.

At1405, the UE may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application. The operations of1405may be performed according to the methods described herein. In some examples, aspects of the operations of1405may be performed by a wakeup signal manager as described with reference toFIGS.8through11.

At1410, the UE may identify a monitoring duration for monitoring for the one or more messages based on a mapping between an attribute of the signal and a set of monitoring durations. The operations of1410may be performed according to the methods described herein. In some examples, aspects of the operations of1410may be performed by a wakeup signal mapping manager as described with reference toFIGS.8through11.

At1415, the UE may monitor for the one or more messages based on the monitoring duration. The operations of1415may be performed according to the methods described herein. In some examples, aspects of the operations of1415may be performed by a message monitoring manager as described with reference toFIGS.8through11.

Aspect 1: A method for wireless communications at a UE, comprising: receiving a signal indicating a wakeup opportunity associated with receiving one or more messages from an application; identifying a mapping between an attribute of the signal and an identifier associated with the application; and determining a wakeup procedure in response to receiving the signal based at least in part on the mapping.

Aspect 2: The method of aspect 1, further comprising: determining a reference time period associated with receiving the signal and a periodicity associated with receiving the signal based at least in part on the attribute of the signal.

Aspect 3: The method of any of aspects 1 through 2, wherein the attribute of the signal comprises a sequence.

Aspect 4: The method of aspect 3, wherein the mapping comprises a mapping between a plurality of sequences and a plurality of identifiers associated with a plurality of applications.

Aspect 5: The method of aspect 4, wherein the mapping is based at least in part on a modulo function of a number of the plurality of sequences and an identifier of the plurality of identifiers associated with the plurality of applications.

Aspect 6: The method of any of aspects 1 through 5, wherein the attribute of the signal comprises a cyclic shift.

Aspect 7: The method of aspect 6, wherein the mapping comprises a mapping between a plurality of cyclic shifts of a single sequence and a plurality of identifiers associated with a plurality of applications.

Aspect 8: The method of aspect 7, wherein the mapping is based at least in part on a modulo function of a number of the plurality of cyclic shifts of the single sequence and an identifier of the plurality of identifiers associated with the plurality of applications.

Aspect 9: The method of any of aspects 1 through 8, further comprising: receiving configuration signaling indicating the attribute of the signal used for the mapping.

Aspect 10: The method of any of aspects 1 through 9, wherein the mapping is based at least in part on a mapping at a vehicle to everything protocol stack layer.

Aspect 11: The method of any of aspects 1 through 10, wherein the mapping is based at least in part on a mapping at a radio resource control protocol stack layer.

Aspect 12: The method of any of aspects 1 through 11, wherein the signal comprises a sidelink wakeup signal.

Aspect 13: The method of any of aspects 1 through 12, wherein the identifier associated with the application comprises a provider service identifier that is mapped to one or more application specific identifiers.

Aspect 14: The method of aspect 13, wherein the provider service identifier is mapped to an application identifier of the application.

Aspect 15: The method of any of aspects 1 through 14, further comprising: identifying a monitoring duration configured for monitoring for the one or more messages based at least in part on a mapping between the attribute of the signal and a plurality of monitoring durations.

Aspect 16: The method of aspect 15, wherein the monitoring duration comprises a number of slots.

Aspect 17: The method of any of aspects 1 through 16, wherein the wakeup procedure comprises turning on circuitry for monitoring for the one or more messages.

Aspect 18: The method of any of aspects 1 through 17, wherein the wakeup procedure comprises skipping the wakeup opportunity.

Aspect 19: A method for wireless communications at a UE, comprising: receiving a signal indicating a wakeup opportunity associated with receiving one or more messages from an application; identifying a monitoring duration for monitoring for the one or more messages based at least in part on a mapping between an attribute of the signal and a plurality of monitoring durations; and monitoring for the one or more messages based at least in part on the monitoring duration.

Aspect 20: The method of aspect 19, wherein the monitoring duration comprises a number of slots.

Aspect 21: The method of any of aspects 19 through 20, wherein the mapping between the attribute of the signal and the plurality of monitoring durations comprises a one-to-one mapping between sequences of the signal and the plurality of monitoring durations.

Aspect 22: The method of any of aspects 19 through 21, wherein the mapping between the attribute of the signal and the plurality of monitoring durations comprises a one-to-many mapping between sequences of the signal and the plurality of monitoring durations.

Aspect 27: An apparatus for wireless communications at a UE, comprising at least one means for performing a method of any of aspects 19 through 22.