WO2026025331A1

WO2026025331A1 - Connected low-power wake-up signal activation and deactivation

Info

Publication number: WO2026025331A1
Application number: PCT/CN2024/108714
Authority: WO
Inventors: Jianhua Liu; Prashant SHARMA; Kazuki Takeda; Jelena Damnjanovic; Ozcan Ozturk
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2024-07-31
Filing date: 2024-07-31
Publication date: 2026-02-05
Anticipated expiration: 2027-01-31

Abstract

Methods, systems, and devices for wireless communications are described. Generally, the described techniques may enable a connected user equipment (UE) to receive a command to activate or deactivate monitoring for one or more low-power wake-up signals (LP-WUSs). The command may indicate which serving cell, serving cell groups, or which discontinuous receive (DRX) groups to apply the LP-WUS monitoring for. The command may further indicate which LP-WUS configurations to apply. A LP-WUS configuration may include a monitoring option, an on-off keying (OOK) configuration, a monitoring periodicity, or any combination thereof. Additionally, or alternatively, the UE may transmit assistance information to request a network entity to activate or deactivate monitoring for the LP-WUS.

Description

CONNECTED LOW-POWER WAKE-UP SIGNAL ACTIVATION AND DEACTIVATION

FIELD OF TECHNOLOGY

The following relates to wireless communications, including connected low-power wake-up signal activation and deactivation.

BACKGROUND

Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) . Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA) , time division multiple access (TDMA) , frequency division multiple access (FDMA) , orthogonal FDMA (OFDMA) , or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) . A wireless multiple-access communications system may include one or more base stations, each supporting wireless communication for communication devices, which may be known as user equipment (UE) .

SUMMARY

The systems, methods, and devices of this disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein.

A method for wireless communications by a user equipment (UE) is described. The method may include receiving first signaling that includes first configuration information associated with one or more low-power wake-up signals (LP-WUSs) and that includes activation information for monitoring the one or more LP-WUSs, where the activation information instructs the UE to activate or deactivate LP- WUS monitoring and monitoring, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.

A UE for wireless communications is described. The UE may include one or more memories storing processor executable code, and one or more processors coupled with the one or more memories. The one or more processors may individually or collectively be operable to execute the code to cause the UE to receive first signaling that includes first configuration information associated with one or more LP-WUSs and that includes activation information for monitoring the one or more LP-WUSs, where the activation information instructs the UE to activate or deactivate LP-WUS monitoring and monitor, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.

Another UE for wireless communications is described. The UE may include means for receiving first signaling that includes first configuration information associated with one or more LP-WUSs and that includes activation information for monitoring the one or more LP-WUSs, where the activation information instructs the UE to activate or deactivate LP-WUS monitoring and means for monitoring, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.

A non-transitory computer-readable medium storing code for wireless communications is described. The code may include instructions executable by one or more processors to receive first signaling that includes first configuration information associated with one or more LP-WUSs and that includes activation information for monitoring the one or more LP-WUSs, where the activation information instructs the UE to activate or deactivate LP-WUS monitoring and monitor, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.

Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting, based on one or more measurement conditions associated with the primary radio, assistance information including a request to activate or deactivate the LP-WUS monitoring, receiving second signaling that includes second activation information based on the request, and monitoring, or refraining from monitoring, for the one or more LP-WUSs based on the second activation information.

In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the assistance information includes an indication corresponding to the request and a first value of the indication corresponds to a request to activate the LP-WUS monitoring and a second value of the indication corresponds to a request to deactivate the LP-WUS monitoring.

In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the assistance information includes one or more requests to monitor for the one or more LP-WUSs in accordance with second configuration information, a discontinuous receive group, one or more serving cells, one or more serving cell groups, or any combination thereof.

In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the request to activate or deactivate the LP-WUS monitoring may be based on a measurement exceeding or not exceeding a threshold, respectively. Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving third signaling including an indication of the one or more measurement conditions and the threshold, where transmitting the assistance information may be based on the indication of the one or more measurement conditions and the threshold.

Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving configuration information associated with a timer of the UE that includes a retransmission count threshold associated with the timer, starting the timer based on transmitting the assistance information, where the timer may be reset based on reception of respective activation information, retransmitting the assistance information based on an expiration of the timer, where a retransmission count may be incremented based on the retransmitted assistance information, and refraining from monitoring the one or more LP-WUSs based on the retransmission count satisfying the retransmission count threshold.

In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the first configuration information includes one or more monitoring configurations, one or more on-off keying configurations, a periodicity associated with the one or more LP-WUSs, or any combination thereof.

Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for detecting the one or more LP-WUSs based on the monitoring, where the wake-up radio activates the primary radio in response to detecting the one or more LP-WUSs and monitoring, via the primary radio, for one or more physical downlink control channel (PDCCH) messages based on the detected one or more LP-WUSs and the one or more monitoring configurations.

In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the one or more monitoring configurations include a first monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs during a monitoring window of a discontinuous receive cycle, a second monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs, or a third monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs during an active window of the discontinuous receive cycle.

In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the first signaling may be received via a medium access control-control element message or a radio resource control message. In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the first signaling may be received via a current serving cell of the UE, a primary serving cell of the UE, or all serving cells within a configured grant group and monitoring for the one or more LP-WUSs may be based on receiving the first signaling via the current serving cell, the primary serving cell, or all the serving cells within the configured grant group.

In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the activation information may be based on a respective serving cell, one or more serving cell groups, one or more discontinuous receive groups, one or more component carriers, one or more component carrier groups, a set of multiple configuration information, or any combination thereof and the set of multiple configuration information includes the first configuration information.

In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the activation information further instructs the UE which of the respective serving cell, the one or more serving cell groups, the one or more discontinuous receive groups, the one or more component carriers, the one or more component carrier groups, the set of multiple configuration information, or any combination thereof, to apply for monitoring the one or more LP-WUSs. In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the first configuration information corresponds to an identifier and the first signaling further includes the identifier.

Details of one or more implementations of the subject matter described in this disclosure are set forth in the accompanying drawings and the description below. Other features, aspects, and advantages will become apparent from the description, the drawings, and the claims. Note that the relative dimensions of the following figures may not be drawn to scale.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGs. 1 and 2 show examples of wireless communications systems that support connected low-power wake-up signal (LP-WUS) activation and deactivation in accordance with one or more aspects of the present disclosure.

FIGs. 3A through 3C show an example monitoring options support connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure.

FIG. 4 shows an example of a process flow that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure.

FIGs. 5 and 6 show block diagrams of devices that support connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure.

FIG. 7 shows a block diagram of a communications manager that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure.

FIG. 8 shows a diagram of a system including a device that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure.

FIGs. 9 and 10 show flowcharts illustrating methods that support connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure.

DETAILED DESCRIPTION

Some wireless communications systems may include wireless devices that may implement a low-power wake-up radio (LP-WUR) . For example, a user equipment (UE) may monitor for low-power wake-up signals (LP-WUS) using a LP-WUR while a main radio (MR) of the UE is in a sleep mode. The LP-WUR may consume less energy compared to the MR of the UE. In some examples, an active (e.g., connected to a network entity) UE may operate in accordance with a discontinuous receive (DRX) cycle, where the DRX cycle includes an active duration and an inactive duration. To conserve energy, the UE may not monitor for signaling using the MR during an active duration of the DRX cycle unless the UE detects a LP-WUS via the LP-WUR. For example, the LP-WUS may indicate that a next active duration of the DRX cycle includes a physical downlink control channel (PDCCH) message. Based on detecting the LP-WUS, the LP-WUR may “wake-up” the MR of the UE (e.g., the MR may exit the sleep mode) , and the MR may monitor for the PDCCH message. However, some other wireless communications systems may not support any mechanism to enable or disable LP-WUS triggered PDCCH monitoring.

The techniques described herein enable the connected UE to receive a command to activate or deactivate monitoring for one or more LP-WUSs. The command may indicate which serving cell, serving cell groups, or which DRX groups to apply the LP-WUS monitoring for. The command may further indicate which LP-WUS configurations to apply. A LP-WUS configuration may include a monitoring option, an on-off keying (OOK) configuration, a monitoring periodicity, or any combination thereof. Additionally, or alternatively, the UE may transmit assistance information to request the network entity to activate or deactivate monitoring for the LP-WUS. For example, the UE may request to activate or deactivate the monitoring based on one or more conditions, such as a MR measurement being above or below a threshold, a decrease in a geographic coverage area of the one or more LP-WUSs, or a low battery of the UE, among other examples.

Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are further illustrated by and described herein with reference to monitoring options and a process flow. Aspects of the disclosure are further illustrated by and described herein with reference to apparatus diagrams, system diagrams, and flowcharts that relate to connected LP-WUS activation and deactivation.

FIG. 1 shows an example of a wireless communications system 100 that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure. The wireless communications system 100 may include one or more devices, such as one or more network devices (e.g., network entities 105) , one or more UEs 115, and a core network 130. In some examples, the wireless communications system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating in accordance with other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.

The network entities 105 may be dispersed throughout a geographic area to form the wireless communications system 100 and may include devices in different forms or having different capabilities. In various examples, a network entity 105 may be referred to as a network element, a mobility element, a radio access network (RAN) node, or network equipment, among other nomenclature. In some examples, network entities 105 and UEs 115 may wirelessly communicate via communication link (s) 125 (e.g., a radio frequency (RF) access link) . For example, a network entity 105 may support a geographic coverage area 110 over which the UEs 115 and the network entity 105 may establish the communication link (s) 125. The geographic coverage area 110 may be an example of a geographic area over which a network entity 105 and a UE 115 may support the communication of signals according to one or more radio access technologies (RATs) .

The UEs 115 may be dispersed throughout a geographic coverage area 110 of the wireless communications system 100, and each UE 115 may be stationary, or mobile, or both at different times. The UEs 115 may be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of supporting communications with various types of devices in the wireless communications system 100 (e.g., other wireless communication devices, including UEs 115 or network entities 105) , as shown in FIG. 1.

As described herein, a node of the wireless communications system 100, which may be referred to as a network node, or a wireless node, may be a network entity 105 (e.g., any network entity described herein) , a UE 115 (e.g., any UE described herein) , a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, a node may be a UE 115. As another example, a node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In yet other aspects of this example, the first, second, and third nodes may be different relative to these examples. Similarly, reference to a UE 115, network entity 105, apparatus, device, computing system, or the like may include disclosure of the UE 115, network entity 105, apparatus, device, computing system, or the like being a node. For example, disclosure that a UE 115 is configured to receive information from a network entity 105 also discloses that a first node is configured to receive information from a second node.

In some examples, network entities 105 may communicate with a core network 130, or with one another, or both. For example, network entities 105 may communicate with the core network 130 via backhaul communication link (s) 120 (e.g., in accordance with an S1, N2, N3, or other interface protocol) . In some examples, network entities 105 may communicate with one another via backhaul communication link (s) 120 (e.g., in accordance with an X2, Xn, or other interface protocol) either directly (e.g., directly between network entities 105) or indirectly (e.g., via the core network 130) . In some examples, network entities 105 may communicate with one another via a midhaul communication link 162 (e.g., in accordance with a midhaul interface protocol) or a fronthaul communication link 168 (e.g., in accordance with a fronthaul interface protocol) , or any combination thereof. The backhaul communication link (s) 120, midhaul communication links 162, or fronthaul communication links 168 may be or include one or more wired links (e.g., an electrical link, an optical fiber link) or one or more wireless links (e.g., a radio link, a wireless optical link) , among other examples or various combinations thereof. A UE 115 may communicate with the core network 130 via a communication link 155.

One or more of the network entities 105 or network equipment described herein may include or may be referred to as a base station 140 (e.g., a base transceiver station, a radio base station, an NR base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB) , a next-generation NodeB or giga-NodeB (either of which may be referred to as a gNB) , a 5G NB, a next-generation eNB (ng-eNB) , a Home NodeB, a Home eNodeB, or other suitable terminology) . In some examples, a network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture, which may be configured to utilize a protocol stack that is physically or logically integrated within one network entity (e.g., a network entity 105 or a single RAN node, such as a base station 140) .

In some examples, a network entity 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) , which may be configured to utilize a protocol stack that is physically or logically distributed among multiple network entities (e.g., network entities 105) , such as an integrated access and backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) . For example, a network entity 105 may include one or more of a central unit (CU) , such as a CU 160, a distributed unit (DU) , such as a DU 165, a radio unit (RU) , such as an RU 170, a RAN Intelligent Controller (RIC) , such as an RIC 175 (e.g., a Near-Real Time RIC (Near-RT RIC) , a Non-Real Time RIC (Non-RT RIC) ) , a Service Management and Orchestration (SMO) system, such as an SMO system 180, or any combination thereof. An RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) . One or more components of the network entities 105 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 105 may be located in distributed locations (e.g., separate physical locations) . In some examples, one or more of the network entities 105 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .

The split of functionality between a CU 160, a DU 165, and an RU 170 is flexible and may support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, or any combinations thereof) are performed at a CU 160, a DU 165, or an RU 170. For example, a functional split of a protocol stack may be employed between a CU 160 and a DU 165 such that the CU 160 may support one or more layers of the protocol stack and the DU 165 may support one or more different layers of the protocol stack. In some examples, the CU 160 may host upper protocol layer (e.g., layer 3 (L3) , layer 2 (L2) ) functionality and signaling (e.g., Radio Resource Control (RRC) , service data adaptation protocol (SDAP) , Packet Data Convergence Protocol (PDCP) ) . The CU 160 (e.g., one or more CUs) may be connected to a DU 165 (e.g., one or more DUs) or an RU 170 (e.g., one or more RUs) , or some combination thereof, and the DUs 165, RUs 170, or both may host lower protocol layers, such as layer 1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160. Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU 165 and an RU 170 such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or multiple different cells (e.g., via one or multiple different RUs, such as an RU 170) . In some cases, a functional split between a CU 160 and a DU 165 or between a DU 165 and an RU 170 may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU 160, a DU 165, or an RU 170, while other functions of the protocol layer are performed by a different one of the CU 160, the DU 165, or the RU 170) . A CU 160 may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU 160 may be connected to a DU 165 via a midhaul communication link 162 (e.g., F1, F1-c, F1-u) , and a DU 165 may be connected to an RU 170 via a fronthaul communication link 168 (e.g., open fronthaul (FH) interface) . In some examples, a midhaul communication link 162 or a fronthaul communication link 168 may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities (e.g., one or more of the network entities 105) that are in communication via such communication links.

In some wireless communications systems (e.g., the wireless communications system 100) , infrastructure and spectral resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, providing an IAB network architecture (e.g., to a core network 130) . In some cases, in an IAB network, one or more of the network entities 105 (e.g., network entities 105 or IAB node (s) 104) may be partially controlled by each other. The IAB node (s) 104 may be referred to as a donor entity or an IAB donor. A DU 165 or an RU 170 may be partially controlled by a CU 160 associated with a network entity 105 or base station 140 (such as a donor network entity or a donor base station) . The one or more donor entities (e.g., IAB donors) may be in communication with one or more additional devices (e.g., IAB node (s) 104) via supported access and backhaul links (e.g., backhaul communication link (s) 120) . IAB node (s) 104 may include an IAB mobile termination (IAB-MT) controlled (e.g., scheduled) by one or more DUs (e.g., DUs 165) of a coupled IAB donor. An IAB-MT may be equipped with an independent set of antennas for relay of communications with UEs 115 or may share the same antennas (e.g., of an RU 170) of IAB node (s) 104 used for access via the DU 165 of the IAB node (s) 104 (e.g., referred to as virtual IAB-MT (vIAB-MT) ) . In some examples, the IAB node (s) 104 may include one or more DUs (e.g., DUs 165) that support communication links with additional entities (e.g., IAB node (s) 104, UEs 115) within the relay chain or configuration of the access network (e.g., downstream) . In such cases, one or more components of the disaggregated RAN architecture (e.g., the IAB node (s) 104 or components of the IAB node (s) 104) may be configured to operate according to the techniques described herein.

In the case of the techniques described herein applied in the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support test as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally, or alternatively, be performed by one or more components of the disaggregated RAN architecture (e.g., components such as an IAB node, a DU 165, a CU 160, an RU 170, an RIC 175, an SMO system 180) .

A UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 may also include or may be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA) , a tablet computer, a laptop computer, or a personal computer. In some examples, a UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, vehicles, or meters, among other examples.

The UEs 115 described herein may be able to communicate with various types of devices, such as UEs 115 that may sometimes operate as relays, as well as the network entities 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.

The UEs 115 and the network entities 105 may wirelessly communicate with one another via the communication link (s) 125 (e.g., one or more access links) using resources associated with one or more carriers. The term “carrier” may refer to a set of RF spectrum resources having a defined PHY layer structure for supporting the communication link (s) 125. For example, a carrier used for the communication link (s) 125 may include a portion of an RF spectrum band (e.g., a bandwidth part (BWP) ) that is operated according to one or more PHY layer channels for a given RAT (e.g., LTE, LTE-A, LTE-A Pro, NR) . Each PHY layer channel may carry acquisition signaling (e.g., synchronization signals, system information) , control signaling that coordinates operation for the carrier, user data, or other signaling. The wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation. A UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers. Communication between a network entity 105 and other devices may refer to communication between the devices and any portion (e.g., entity, sub-entity) of a network entity 105. For example, the terms “transmitting, ” “receiving, ” or “communicating, ” when referring to a network entity 105, may refer to any portion of a network entity 105 (e.g., a base station 140, a CU 160, a DU 165, a RU 170) of a RAN communicating with another device (e.g., directly or via one or more other network entities, such as one or more of the network entities 105) .

The communication link (s) 125 of the wireless communications system 100 may include downlink transmissions (e.g., forward link transmissions) from a network entity 105 to a UE 115, uplink transmissions (e.g., return link transmissions) from a UE 115 to a network entity 105, or both, among other configurations of transmissions. Carriers may carry downlink or uplink communications (e.g., in an FDD mode) or may be configured to carry downlink and uplink communications (e.g., in a TDD mode) .

Signal waveforms transmitted via a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM) ) . In a system employing MCM techniques, a resource element may refer to resources of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The quantity of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both) , such that a relatively higher quantity of resource elements (e.g., in a transmission duration) and a relatively higher order of a modulation scheme may correspond to a relatively higher rate of communication. A wireless communications resource may refer to a combination of an RF spectrum resource, a time resource, and a spatial resource (e.g., a spatial layer, a beam) , and the use of multiple spatial resources may increase the data rate or data integrity for communications with a UE 115.

The time intervals for the network entities 105 or the UEs 115 may be expressed in multiples of a basic time unit which may, for example, refer to a sampling period of T_s=1/(Δf_max·N_f) seconds, for which Δf_max may represent a supported subcarrier spacing, and N_f may represent a supported discrete Fourier transform (DFT) size. Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms) ) . Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023) .

Each frame may include multiple consecutively-numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a quantity of slots. Alternatively, each frame may include a variable quantity of slots, and the quantity of slots may depend on subcarrier spacing. Each slot may include a quantity of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period) . In some wireless communications systems, such as the wireless communications system 100, a slot may further be divided into multiple mini-slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N_f) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.

A subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI) . In some examples, the TTI duration (e.g., a quantity of symbol periods in a TTI) may be variable. Additionally, or alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs) ) .

Physical channels may be multiplexed for communication using a carrier according to various techniques. A physical control channel and a physical data channel may be multiplexed for signaling via a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET) ) for a physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115. For example, one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to an amount of control channel resources (e.g., control channel elements (CCEs) ) associated with encoded information for a control information format having a given payload size. Search space sets may include common search space sets configured for sending control information to UEs 115 (e.g., one or more UEs) or may include UE-specific search space sets for sending control information to a UE 115 (e.g., a specific UE) .

In some examples, a network entity 105 (e.g., a base station 140, an RU 170) may be movable and therefore provide communication coverage for a moving coverage area, such as the geographic coverage area 110. In some examples, geographic coverage areas 110 (e.g., different coverage areas) associated with different technologies may overlap, but the geographic coverage areas 110 (e.g., different coverage areas) may be supported by the same network entity (e.g., a network entity 105) . In some other examples, overlapping coverage areas, such as a geographic coverage area 110, associated with different technologies may be supported by different network entities (e.g., the network entities 105) . The wireless communications system 100 may include, for example, a heterogeneous network in which different types of the network entities 105 support communications for geographic coverage areas 110 (e.g., different coverage areas) using the same or different RATs.

The wireless communications system 100 may support synchronous or asynchronous operation. For synchronous operation, network entities 105 (e.g., base stations 140) may have similar frame timings, and transmissions from different network entities (e.g., different ones of the network entities 105) may be approximately aligned in time. For asynchronous operation, network entities 105 may have different frame timings, and transmissions from different network entities (e.g., different ones of network entities 105) may, in some examples, not be aligned in time. The techniques described herein may be used for either synchronous or asynchronous operations.

Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communications (e.g., a mode that supports one-way communication via transmission or reception, but not transmission and reception concurrently) . In some examples, half-duplex communications may be performed at a reduced peak rate. Other power conservation techniques for the UEs 115 may include entering a power saving deep sleep mode when not engaging in active communications, operating using a limited bandwidth (e.g., according to narrowband communications) , or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs) ) within a carrier, within a guard-band of a carrier, or outside of a carrier.

The wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 may be configured to support ultra-reliable low-latency communications (URLLC) . The UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions. Ultra-reliable communications may include private communication or group communication and may be supported by one or more services such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.

In some examples, a UE 115 may be configured to support communicating directly with other UEs (e.g., one or more of the UEs 115) via a device-to-device (D2D) communication link, such as a D2D communication link 135 (e.g., in accordance with a peer-to-peer (P2P) , D2D, or sidelink protocol) . In some examples, one or more UEs 115 of a group that are performing D2D communications may be within the geographic coverage area 110 of a network entity 105 (e.g., a base station 140, an RU 170) , which may support aspects of such D2D communications being configured by (e.g., scheduled by) the network entity 105. In some examples, one or more UEs 115 of such a group may be outside the geographic coverage area 110 of a network entity 105 or may be otherwise unable to or not configured to receive transmissions from a network entity 105. In some examples, groups of the UEs 115 communicating via D2D communications may support a one-to-many (1: M) system in which each UE 115 transmits to one or more of the UEs 115 in the group. In some examples, a network entity 105 may facilitate the scheduling of resources for D2D communications. In some other examples, D2D communications may be carried out between the UEs 115 without an involvement of a network entity 105.

The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC) , which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management function (AMF) ) and at least one user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entity may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched Streaming Service.

The wireless communications system 100 may operate using one or more frequency bands, which may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz) . Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, which may be referred to as clusters, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than one hundred kilometers) compared to communications using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

The wireless communications system 100 may utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communications system 100 may employ License Assisted Access (LAA) , LTE-Unlicensed (LTE-U) RAT, or NR technology using an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. While operating using unlicensed RF spectrum bands, devices such as the network entities 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance. In some examples, operations using unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating using a licensed band (e.g., LAA) . Operations using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

A network entity 105 (e.g., a base station 140, an RU 170) or a UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of a network entity 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with a network entity 105 may be located at diverse geographic locations. A network entity 105 may include an antenna array with a set of rows and columns of antenna ports that the network entity 105 may use to support beamforming of communications with a UE 115. Likewise, a UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally, or alternatively, an antenna panel may support RF beamforming for a signal transmitted via an antenna port.

Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that some signals propagating along particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference. The adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device. The adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation) .

The wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP-based. An RLC layer may perform packet segmentation and reassembly to communicate via logical channels. A MAC layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer also may implement error detection techniques, error correction techniques, or both to support retransmissions to improve link efficiency. In the control plane, an RRC layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a network entity 105 or a core network 130 supporting radio bearers for user plane data. A PHY layer may map transport channels to physical channels.

Some wireless communications systems 100 may include wireless devices that may implement a LP-WUR. For example, a UE 115 may monitor for LP-WUS using a LP-WUR while MR of the UE 115 is in a sleep mode. The LP-WUR may consume less energy compared to the MR of the UE 115. In some examples, an active (e.g., connected to a network entity 105) UE 115 may operate in accordance with a DRX cycle, where the DRX cycle includes an active duration and an inactive duration. To conserve energy, the UE 115 may not monitor for signaling using the MR during an active duration of the DRX cycle unless the UE 115 detects a LP-WUS via the LP-WUR. For example, the LP-WUS may indicate that a next active duration of the DRX cycle includes a PDCCH message. Based on detecting the LP-WUS, the LP-WUR may “wake-up” the MR of the UE 115 (e.g., the MR may exit the sleep mode) , and the MR may monitor for the PDCCH message. However, some other wireless communications systems may not support any mechanism to enable or disable LP-WUS triggered PDCCH monitoring.

The techniques described herein may enable the connected UE 115 to receive a command to activate or deactivate monitoring for one or more LP-WUSs. The command may indicate which serving cell, serving cell groups, or which DRX groups to apply the LP-WUS monitoring for. The command may further indicate which LP-WUS configurations to apply. A LP-WUS configuration may include a monitoring option, an OOK configuration, a monitoring periodicity, or any combination thereof. Additionally, or alternatively, the UE 115 may transmit assistance information to request the network entity 105 to activate or deactivate monitoring for the LP-WUS. For example, the UE 115 may request to activate or deactivate the monitoring based on one or more conditions, such as a MR measurement being above or below a threshold, a decrease in a geographic coverage area of the one or more LP-WUSs, or a low battery of the UE 115, among other examples.

FIG. 2 shows an example of a wireless communications system 200 that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure. The wireless communications system 200 may implement, or may be implemented by, aspects of the wireless communications system 100, as described herein with reference to FIG. 1. For example, the wireless communications system 100 may include a UE 115-a and a network entity 105-a, which may be examples of the corresponding devices described herein, including with reference to FIG. 1. In some examples, the UE 115-a may receive one or more downlink transmissions 205, transmit one or more uplink transmissions 210, or both.

Some wireless communications systems may include wireless devices that may implement a LP-WUR. A LP-WUR may refer to a radio receiver circuit with a lower energy consumption compared to a MR of a respective wireless device, such as the UE 115-a. The MR may receive and/or transmit signals with higher power compared to signals received and/or transmitted by the LP-WUR. Thus, the LP-WUR may enable energy savings at the UE 115-a. For example, the MR may be in an ultra-low power state (ULPS) mode unless there are one or more relatively higher power signals to transmit (e.g., one or more uplink transmissions 210) . While the MR is in the ULPS mode, the LP-WUR may monitor for one or more LP-WUSs 225 during the LP-WUR timeline 240-b. In response to receiving a LP-WUS 225 (e.g., the LP-WUS 225-b) , the LP-WUR may activate the MR, and the UE 115-a may use the MR to transmit the one or more uplink transmissions 210, receive the one or more downlink transmissions 205, or both during the MR timeline 240-a. That is, receiving a LP-WUS 225 may initiate a trigger for the MR to exit the ULPS mode and transmit and/or receive data.

In some examples, a LP-WUS may indicate that a next paging occasion 235 may include one or more paging messages. For example, the network entity 105-a may transmit one or more LP-WUSs 225 if there are one or more paging messages for an idle, or inactive, mode UE 115 (e.g., if the UE 115-a is in an idle or inactive mode) . If the UE 115-a detects the one or more LP-WUSs 225 in a monitoring duration, the UE 115-a may activate the MR. The monitoring duration for the one or more LP-WUSs 225 may be based on monitoring periodicity 245. For example, the UE 115-a may detect the LP-WUS 225-b in a respective monitoring duration and may activate the MR to monitor one or more SSB messages 230. In some examples, there may be an activation duration 250 (e.g., a delay) between detecting the LP-WUS 225-b and activating the MR to monitor the one or more SSB messages prior to receiving a paging occasion 235 for synchronization. If the UE 115-a does not detect the one or more LP-WUSs 225 (e.g., the UE 115-a does not detect LP-WUS 225-a) , the MR may remain in a deep sleep (e.g., ULPS) mode for power saving.

Additionally, or alternatively, the network entity 105-a may periodically transmit low-power synchronization signals (LP-SS) 220 to assist the LP-WUR with time and/or frequency synchronization. That is, the UE 115-a may use the LP-SS 220 (e.g., the LP-SS 220-a, LP-SS 220-b, LP-SS 220-c, LP-SS 220-d, and LP-SS 220-e) for measurement purposes while the MR remains in the deep sleep mode. For example, the UE 115-a may measure the LP-SS 220 for mobility purposes, such as cell-reselection, handover, and the like, without waking up the MR.

In some other examples a LP-WUS may indicate that a next DRX active duration of the UE 115-a includes one or more PDCCH messages. For example, the UE 115-a may monitor for the one or more PDCCH messages based on detecting the LP-WUS 225-b while in a connected mode (e.g., RCC active mode) . Connected mode UEs may monitor for the one or more PDCCH messages in accordance with a discontinuous receive (DRX) cycle that includes active (e.g., the MR is activated) and inactive (e.g., the MR is in a sleep mode) durations. In some examples, LP-WUS-triggered PDCCH monitoring may be activated or deactivated according to one or more policies of the network entity 105-a, one or more preferences of the UE 115-a, a geographic coverage area (e.g., of LP-WUS) of the UE 115-a, or any combination thereof. However, some other wireless communication systems may not support any LP-WUS activation or deactivation mechanism.

The techniques described herein may enable the UE 115-a to receive a command 215 to activate or deactivate monitoring for the one or more LP-WUSs 225. The command 215 may indicate which serving cell, serving cell groups, or which DRX groups to apply the LP-WUS monitoring for. Additionally, or alternatively, the command 215 may indicate which LP-WUS configurations to apply (e.g., which LP-WUS configuration for each serving cell, serving cell group, DRX group, etc. ) . A LP-WUS configuration may include a monitoring option, an OOK configuration, a monitoring periodicity, or any combination thereof. For example, as described herein with reference to FIGs. 3A through 3C, the command 215 may include an indication of one or more PDCCH monitoring options. For example, the UE 115-a may receive a command 215 instructing the UE 115-a to monitor for the one or more LP-WUSs 225 while the UE 115-a is in a connected mode. Based on receiving the command 215, the UE 115-a may monitor for, and detect the LP-WUS 225-b. In response to detecting the LP-WUS 225-b, the UE 115-a may (e.g., via the LP-WUR) activate the MR and monitor for one or more PDCCH messages in accordance with a monitoring option indicated in the command 215.

Additionally, or alternatively, the UE 115-a may transmit assistance information 255 to request the network entity 105-a to activate or deactivate monitoring for the LP-WUS 225. For example, the UE 115-a may request to activate or deactivate the monitoring based on one or more conditions, such as a MR measurement being above or below a threshold, a decrease in a geographic coverage area of the one or more LP-WUSs, or a low battery of the UE 115-a, among other examples.

FIGs. 3A through 3C show examples of monitoring options 300 that support connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure. In the examples of FIGs. 3A through 3C, a network entity may transmit one or more LP-WUSs 305 and one or more PDCCH messages 315 for a UE to receive. For example, the UE may receive the one or more LP-WUSs 305 via a LP-WUR during the LP-WUR timeline 335-a, and the UE may receive the one or more PDCCH messages via a MR during the MR timeline 335-b. The network entity and the UE may be examples of a network entity 105 and a UE 115 as described herein.

As described herein, the UE may receive a command (e.g., the command 215) to activate or deactivate monitoring for one or more LP-WUSs 305. The command may further indicate a LP-WUS configuration, including a configuration for monitoring PDCCH based on detecting a LP-WUS 305. FIGs. 3A through 3C may illustrate different PDCCH monitoring options based on receiving a command instructing the UE to monitor for LP-WUS. Although FIGs. 3A through 3C illustrate exemplary monitoring options for the UE to monitor for one or more PDCCH messages 315, it may be understood that the techniques described herein may apply to other monitoring options.

FIG. 3A illustrates a first exemplary option 300-a for PDCCH monitoring where a UE may monitor for the one or more LP-WUSs 305 in a LP-WUS monitoring window (e.g., monitoring occasion) for each DRX cycle of the UE. For example, the UE may monitor for the one or more LP-WUSs 305 at least a duration 325 before the start of an active duration 330 of the DRX cycle (e.g., at least an offset before the slot that the DRX timer would start) . In some cases, the duration 325 may be based on a duration to activate the MR, such as the activation duration 250 described herein with reference to FIG. 2. The active duration 330 of the DRX cycle may be based on a DRX configuration of the UE. In some examples, the UE may detect a LP-WUS 305, such as the LP-WUS 305-a, which may indicate for the UE to monitor PDCCH message 315-a in the active duration 330 of the DRX cycle. That is, the UE may monitor the active time of a DRX timer (e.g., drx-onDurationTimer) for relatively long DRX cycles based on the LP-WUS indication.

In some other examples, the UE may not detect a LP-WUS 305. For example, the UE may not detect the LP-WUS 305-b and/or the LP-WUS 305-c. In such other examples, the UE may not monitor for the PDCCH message 315-b and the PDCCH message 315-c based on not detecting the LP-WUS 305-b and the LP-WUS 305-c, respectively.

FIG. 3B illustrates a second exemplary option 300-b for PDCCH monitoring. For example, the UE may monitor PDCCH based on detecting the LP-WUS 305-a irrespective of a PDCCH message occurring outside, or inside, an active duration 330 of the DRX cycle. For example, the UE may detect the LP-WUS 305-a at least a duration 325 prior to the PDDCH message 315-a. Based on detecting the LP-WUS 305-a, the UE may monitor the PDCCH message 315-a in a duration 340 outside the active duration 330 of the DRX cycle. Additionally, or alternatively, the UE may monitor one or more PDCCH messages inside the active duration 330 of the DRX cycle. For example, the UE may monitor the PDCCH message 315-b based on detecting the LP-WUS 305-a. In other examples, the UE may skip (e.g., not monitor) PDCCH messages 315 inside the active duration 330. For example, the UE may not monitor the PDCCH message 315-c (e.g., based on monitoring the PDCCH message 315-a in the duration 340) . That is, the UE may skip PDCCH messages 315 within the active duration of a DRX cycle (e.g., drx-onDurationTimer) configured for long DRX cycles. As described herein, the UE may not monitor for PDCCH messages 315 based on not detecting a LP-WUS 305. For example, the UE may not detect the LP-WUS 305-b, and based on not detecting the LP-WUS 305-b, the UE may not monitor for the PDCCH message 315-d.

FIG. 3C illustrates a third exemplary option 300-c for PDCCH monitoring. For example, the UE may monitor for the one or more LP-WUSs 305 during the active duration 330 of the DRX cycle. In some examples, the UE may detect one or more LP-WUSs 305, such as LP-WUS 305-a, during the active duration 330 of the DRX cycle. Based on detecting the LP-WUS 305-a, the UE may monitor the PDCCH message 315-a during the active duration 330. That is, the UE may monitor for the one or more LP-WUSs 305 in accordance with the LP-WUS monitoring configuration to trigger PDCCH monitoring. In some other examples, the UE may not detect a LP-WUS 305. For example, the UE may not detect the LP-WUS 305-b and, based on not detecting the LP-WUS 305-b, the UE may not monitor for the PDCCH message 315-b.

FIG. 4 shows an example of a process flow 400 that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure. The process flow 400 may be implemented by aspects of the wireless communications systems 100 and 200. For example, a UE 115-b and a network entity 105-b, which may be examples of a UE 115 or a network entity 105 as described herein, may perform aspects of the process flow 400. In the following description of the process flow 400, operations performed by the UE 115-b and the network entity 105-b may be performed in a different order than is shown. Some operations may be omitted from the process flow 400, and other operations may be added to the process flow 400. Further, although some operations or signaling may be shown to occur at different times for discussion purposes, these operations may occur at the same time.

At 405, the UE 115-b may receive third signaling including an indication of one or more measurement conditions and a threshold. In some examples, the one or more measurement conditions may correspond a signal strength measurement, or a signal-to-interference and/or noise ratio measurement, among other examples. Based on the one or more measurement conditions, the MR may perform one or more measurements (e.g., on one or more LP-WUSs) and compare each of the one or more measurements to the threshold.

At 410, the UE 115-b may receive configuration information associated with a timer (e.g., a prohibit timer) of the UE 115-b. The configuration information may include a retransmission count threshold associated with the timer. In some examples, the network entity 105-b may transmit the configuration information associated with the timer via an RRC message.

At 415, the UE 115-b may receive first signaling that includes first configuration information associated with the one or more LP-WUSs and that includes activation information for monitoring the one or more LP-WUSs. For example, the activation information may instruct the UE 115-b to activate or deactivate LP-WUS monitoring. The UE 115-b may receive the first signaling via a MAC-CE message, an RRC message, or other L1 signaling (e.g., via any physical channel message) .

In some examples, the first configuration information may include one or more monitoring configurations (e.g., as described herein with reference to the monitoring options in FIGs. 3A through 3C) , one or more OOK configurations, a periodicity associated with the one or more LP-WUSs, or any combination thereof. For example, an OOK configuration may indicate a modulation scheme applied to the one or more LP-WUSs (e.g., OOK-1 or OOK-4 with M = 2) . The periodicity may indicate a monitoring periodicity (e.g., 10ms, 2ms, etc. ) . In some cases, the first configuration information may correspond to an identifier, and the first signaling may further include the identifier. That is, each LP-WUS configuration may be assigned an identifier, and the configuration identifier may be included in the first signaling (e.g., in a MAC-CE message) .

In some examples, the UE 115-b may receive the first signaling via a current serving cell of the UE 115-b, a primary serving cell of the UE 115-b, or all serving cells within a configured grant (CG) group. In such examples, the UE 115-b may monitor for the one more LP-WUS based at least in part on receiving the first signaling via the current serving cell, the primary serving cell, or all the serving cells within the CG group. That is, the network entity 105-b may transmit the first signaling on a current serving cell, or primary serving cell (PSCell) , of the UE 115-b and may indicate whether the UE 115-b should monitor for the one or more LP-WUSs or not on the current serving cell, or the PSCell for all serving cells within the CG group, respectively.

In some examples, the activation information may be based at least in part on a respective serving cell, one or more serving cell groups, one or more DRX groups, one or more component carriers, one or more component carrier groups, multiple configuration information, or any combination thereof. In such examples, the multiple configuration information may include the first configuration information. For example, the activation information may further instruct the UE 115-b which of the respective serving cell, the one or more serving cell groups, the one or more DRX groups, the one or more component carriers, the one or more component carriers groups, the multiple configuration information, to apply for monitoring the one or more LP-WUSs. In some examples, for each of the respective serving cell, the one or more serving cell groups, the one or more DRX groups, the one or more component carriers, or the one or more component carrier groups, the first signaling may further indicate which LP-WUS configuration may be applied.

At 420, the UE 115-b may monitor for the one or more LP-WUSs based at least in part on the first configuration information and the activation information instructing the UE 115-b to activate LP-WUS monitoring. In some examples, the UE 115-b may monitor for the one or more LP-WUSs using a wake-up radio (e.g., a LP-WUR) of the UE 115-b while a primary radio (e.g., the MR) of the UE 115-b is in a sleep mode, such as an ULPS mode. If the activation information instructs the UE 115-b to deactivate monitoring (e.g., or not to monitor) for the one or more LP-WUSs, the UE 115-b may cease monitoring (e.g., or not monitor) for the one or more LP-WUSs.

At 425, the UE 115-b may detect the one or more LP-WUSs based at least in part on monitoring for the one or more LP-WUSs. In response to detecting the one or more LP-WUSs, the wake-up radio may activate the primary radio, as described herein with reference to FIG. 2.

At 430, the UE 115-b may monitor, via the primary radio (e.g., the MR) , for one or more PDCCH messages based at least in part on the detected one or more LP-WUSs and the one or more monitoring configurations. In some examples, the UE 115-b may monitor for one or more PDCCH messages in accordance with one or more of the monitoring options as described herein with reference to FIGs. 3A through 3C. For example, the one or more monitoring configurations may include a first monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs during a monitoring window of a DRX cycle, as described herein with reference to FIG. 3A. The one or more monitoring configurations may include a second monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs, as described with reference to FIG. 3B. Additionally, or alternatively, the one or more monitoring configurations may include a third monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs during an active window the DRX cycle, as described herein with reference to FIG. 3C.

At 435, the UE 115-b may transmit assistance information that includes a request to activate or deactivate the LP-WUS monitoring based at least in part on the one or more measurement conditions associated with the primary radio. For example, the UE 115-b may transmit the assistance information based on receiving the indication of the one or more measurement conditions in the third signaling. In some other examples, the UE 115-b may transmit the assistance information based on performing one or more measurements. That is, the UE 115-b may transmit the assistance information without receiving the third signaling (e.g., the UE 115-b may determine respective measurement conditions without the network entity 105-b) . The UE 115-b may transmit the assistance information via a MAC-CE message or an RRC message.

In some examples, the assistance information may include an indication, such as a bit field, corresponding to the request. In such examples, a first value of the indication may correspond to a request to activate the LP-WUS monitoring and a second value of the indication may correspond to a request to deactivate the LP-WUS monitoring. Additionally, or alternatively, the request to activate or deactivate the LP-WUS monitoring may be based at least in part on a measurement exceeding or not exceeding the threshold, respectively. For example, based on a MR measurement being above a threshold, the UE 115-b may transmit a LP-WUS activation request. In another example, if the MR measurement is below the threshold, the UE 115-b may transmit a LP-WUS deactivation request. In each example, the UE 115-b may determine whether to transmit the activation or deactivation request based on the condition (e.g., the MR measurement) being satisfied or not satisfied, respectively. That is, transmitting the request may be based on UE implementation of the techniques described herein.

In some examples, the assistance information may include one or more requests to monitor for the one or more LP-WUSs in accordance with second configuration information, a DRX group, one or more serving cells, one or more serving cell groups, or any combination thereof. For example, the UE 115-b may transmit a request to monitor for the one or more LP-WUSs in accordance with a LP-WUS configuration (e.g., for each DRX group, the one or more serving cells, the one or more serving cell groups) . In some examples, the UE 115-b may transmit the assistance information prior to receiving the first signaling (e.g., the UE 115-b may enter or leave a geographic coverage area for LP-WUS or the UE 115-b may have a relatively low battery) .

In some examples, at 440, the UE 115-b may start a timer (e.g., the prohibit timer) based at least in part on transmitting the assistance information. For example, the UE 115-b may start the timer in response to transmitting the assistance information. In some examples, the UE 115-b may reset (e.g., or stop) the timer based at least in part on reception of respective activation information. Additionally, or alternatively, the UE 115-b may reset (e.g., or stop) the timer based on receiving updated LP-WUS configuration information.

At 445, the UE 115-b may retransmit the assistance information based at least in part on an expiration of the timer. In some examples, the UE 115-b may increment a retransmission count based at least in part on the retransmitted assistance information. That is, the UE 115-b may increment the retransmission count for each retransmission. In some examples, the UE 115-b may refrain from monitoring the one or more LP-WUSs based at least in part on the retransmission count satisfying the retransmission count threshold.

At 450, the UE 115-b may receive second signaling that includes second activation information based at least in part on the request. In some examples, the second activation information may be the same as the first activation information. For example, the UE 115-b may transmit the assistance information prior to receiving the first signaling and may receive the first activation information in response to the request.

At 455, the UE 115-b may monitor, or refrain from monitoring, for the one or more LP-WUSs based at least in part on the second activation information. For example, if the second activation information instructs the UE 115-b to activate LP- WUS monitoring, the UE 115-b may monitor for the one or more LP-WUSs. If the second activation information instructs the UE 115-b to deactivate monitoring for the one or more LP-WUSs, the UE 115-b may refrain from monitoring the one or more LP-WUSs. In some other examples, the UE 115-b may refrain from monitoring the one or more LP-WUSs based at least in part on the retransmission count satisfying the retransmission count threshold. That is, if the UE 115-b transmits the assistance information (e.g., requests LP-WUS deactivation) , and the network entity 105-b does not respond (e.g., the UE 115-b does not receive the second signaling) after a quantity of retransmission attempts equal to, or greater than, the retransmission count threshold, the UE 115-b may stop monitoring for the one or more LP-WUSs.

FIG. 5 shows a block diagram 500 of a device 505 that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure. The device 505 may be an example of aspects of a UE 115 as described herein. The device 505 may include a receiver 510, a transmitter 515, and a communications manager 520. The device 505, or one or more components of the device 505 (e.g., the receiver 510, the transmitter 515, the communications manager 520) , may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .

The receiver 510 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to connected LP-WUS activation and deactivation) . Information may be passed on to other components of the device 505. The receiver 510 may utilize a single antenna or a set of multiple antennas.

The transmitter 515 may provide a means for transmitting signals generated by other components of the device 505. For example, the transmitter 515 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to connected LP-WUS activation and deactivation) . In some examples, the transmitter 515 may be co-located with a receiver 510 in a transceiver module. The transmitter 515 may utilize a single antenna or a set of multiple antennas.

The communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be examples of means for performing various aspects of connected LP-WUS activation and deactivation as described herein. For example, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be capable of performing one or more of the functions described herein.

In some examples, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include at least one of a processor, a digital signal processor (DSP) , a central processing unit (CPU) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory) .

Additionally, or alternatively, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code) . If implemented in code executed by at least one processor, the functions of the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure) .

In some examples, the communications manager 520 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 510, the transmitter 515, or both. For example, the communications manager 520 may receive information from the receiver 510, send information to the transmitter 515, or be integrated in combination with the receiver 510, the transmitter 515, or both to obtain information, output information, or perform various other operations as described herein.

The communications manager 520 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 520 is capable of, configured to, or operable to support a means for receiving first signaling that includes first configuration information associated with one or more LP-WUSs and that includes activation information for monitoring the one or more LP-WUSs, where the activation information instructs the UE to activate or deactivate LP-WUS monitoring. The communications manager 520 is capable of, configured to, or operable to support a means for monitoring, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.

By including or configuring the communications manager 520 in accordance with examples as described herein, the device 505 (e.g., at least one processor controlling or otherwise coupled with the receiver 510, the transmitter 515, the communications manager 520, or a combination thereof) may support techniques for reduced processing, reduced power consumption, and more efficient utilization of communication resources, among other examples.

FIG. 6 shows a block diagram 600 of a device 605 that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure. The device 605 may be an example of aspects of a device 505 or a UE 115 as described herein. The device 605 may include a receiver 610, a transmitter 615, and a communications manager 620. The device 605, or one or more components of the device 605 (e.g., the receiver 610, the transmitter 615, the communications manager 620) , may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .

The receiver 610 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to connected LP-WUS activation and deactivation) . Information may be passed on to other components of the device 605. The receiver 610 may utilize a single antenna or a set of multiple antennas.

The transmitter 615 may provide a means for transmitting signals generated by other components of the device 605. For example, the transmitter 615 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to connected LP-WUS activation and deactivation) . In some examples, the transmitter 615 may be co-located with a receiver 610 in a transceiver module. The transmitter 615 may utilize a single antenna or a set of multiple antennas.

The device 605, or various components thereof, may be an example of means for performing various aspects of connected LP-WUS activation and deactivation as described herein. For example, the communications manager 620 may include a first configuration information component 625 an LP-WUS monitoring component 630, or any combination thereof. The communications manager 620 may be an example of aspects of a communications manager 520 as described herein. In some examples, the communications manager 620, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 610, the transmitter 615, or both. For example, the communications manager 620 may receive information from the receiver 610, send information to the transmitter 615, or be integrated in combination with the receiver 610, the transmitter 615, or both to obtain information, output information, or perform various other operations as described herein.

The communications manager 620 may support wireless communications in accordance with examples as disclosed herein. The first configuration information component 625 is capable of, configured to, or operable to support a means for receiving first signaling that includes first configuration information associated with one or more LP-WUSs and that includes activation information for monitoring the one or more LP-WUSs, where the activation information instructs the UE to activate or deactivate LP-WUS monitoring. The LP-WUS monitoring component 630 is capable of, configured to, or operable to support a means for monitoring, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.

FIG. 7 shows a block diagram 700 of a communications manager 720 that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure. The communications manager 720 may be an example of aspects of a communications manager 520, a communications manager 620, or both, as described herein. The communications manager 720, or various components thereof, may be an example of means for performing various aspects of connected LP-WUS activation and deactivation as described herein. For example, the communications manager 720 may include a first configuration information component 725, an LP-WUS monitoring component 730, an assistance information component 735, an activation information component 740, a timer configuration information component 745, a timer component 750, an LP-WUS detection component 755, a PDCCH monitoring component 760, a measurement conditions component 765, or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories) , may communicate, directly or indirectly, with one another (e.g., via one or more buses) .

The communications manager 720 may support wireless communications in accordance with examples as disclosed herein. The first configuration information component 725 is capable of, configured to, or operable to support a means for receiving first signaling that includes first configuration information associated with one or more LP-WUSs and that includes activation information for monitoring the one or more LP-WUSs, where the activation information instructs the UE to activate or deactivate LP-WUS monitoring. The LP-WUS monitoring component 730 is capable of, configured to, or operable to support a means for monitoring, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.

In some examples, the assistance information component 735 is capable of, configured to, or operable to support a means for transmitting, based on one or more measurement conditions associated with the primary radio, assistance information including a request to activate or deactivate the LP-WUS monitoring. In some examples, the activation information component 740 is capable of, configured to, or operable to support a means for receiving second signaling that includes second activation information based on the request. In some examples, the LP-WUS monitoring component 730 is capable of, configured to, or operable to support a means for monitoring, or refraining from monitoring, for the one or more LP-WUSs based on the second activation information. In some examples, the request to activate or deactivate the LP-WUS monitoring is based on a measurement exceeding or not exceeding a threshold, respectively.

In some examples, the assistance information includes an indication corresponding to the request. In some examples, a first value of the indication corresponds to a request to activate the LP-WUS monitoring and a second value of the indication corresponds to a request to deactivate the LP-WUS monitoring. In some examples, the assistance information includes one or more requests to monitor for the one or more LP-WUSs in accordance with second configuration information, a discontinuous receive group, one or more serving cells, one or more serving cell groups, or any combination thereof.

In some examples, the measurement conditions component 765 is capable of, configured to, or operable to support a means for receiving third signaling including an indication of the one or more measurement conditions and the threshold, where transmitting the assistance information is based on the indication of the one or more measurement conditions and the threshold.

In some examples, the timer configuration information component 745 is capable of, configured to, or operable to support a means for receiving configuration information associated with a timer of the UE that includes a retransmission count threshold associated with the timer. In some examples, the timer component 750 is capable of, configured to, or operable to support a means for starting the timer based on transmitting the assistance information, where the timer is reset based on reception of respective activation information. In some examples, the assistance information component 735 is capable of, configured to, or operable to support a means for retransmitting the assistance information based on an expiration of the timer, where a retransmission count is incremented based on the retransmitted assistance information. In some examples, the LP-WUS monitoring component 730 is capable of, configured to, or operable to support a means for refraining from monitoring the one or more LP-WUSs based on the retransmission count satisfying the retransmission count threshold. In some examples, the first configuration information includes one or more monitoring configurations, one or more on-off keying configurations, a periodicity associated with the one or more LP-WUSs, or any combination thereof.

In some examples, the LP-WUS detection component 755 is capable of, configured to, or operable to support a means for detecting the one or more LP-WUSs based on the monitoring, where the wake-up radio activates the primary radio in response to detecting the one or more LP-WUSs. In some examples, the PDCCH monitoring component 760 is capable of, configured to, or operable to support a means for monitoring, via the primary radio, for one or more PDCCH messages based on the detected one or more LP-WUSs and the one or more monitoring configurations.

In some examples, the one or more monitoring configurations include a first monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs during a monitoring window of a discontinuous receive cycle, a second monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs, or a third monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs during an active window of the discontinuous receive cycle.

In some examples, the first signaling is received via a medium access control-control element message or a radio resource control message. In some examples, the first signaling is received via a current serving cell of the UE, a primary serving cell of the UE, or all serving cells within a configured grant group. In some examples, monitoring for the one or more LP-WUSs is based on receiving the first signaling via the current serving cell, the primary serving cell, or all the serving cells within the configured grant group.

In some examples, the activation information is based on a respective serving cell, one or more serving cell groups, one or more discontinuous receive groups, one or more component carriers, one or more component carrier groups, a set of multiple configuration information, or any combination thereof. In some examples, the set of multiple configuration information includes the first configuration information. In some examples, the activation information further instructs the UE which of the respective serving cell, the one or more serving cell groups, the one or more discontinuous receive groups, the one or more component carriers, the one or more component carrier groups, the set of multiple configuration information, or any combination thereof, to apply for monitoring the one or more LP-WUSs. In some examples, the first configuration information corresponds to an identifier. In some examples, the first signaling further includes the identifier.

FIG. 8 shows a diagram of a system 800 including a device 805 that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure. The device 805 may be an example of or include components of a device 505, a device 605, or a UE 115 as described herein. The device 805 may communicate (e.g., wirelessly) with one or more other devices (e.g., network entities 105, UEs 115, or a combination thereof) . The device 805 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 820, an input/output (I/O) controller, such as an I/O controller 810, a transceiver 815, one or more antennas 825, at least one memory 830, code 835, and at least one processor 840. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 845) .

The I/O controller 810 may manage input and output signals for the device 805. The I/O controller 810 may also manage peripherals not integrated into the device 805. In some cases, the I/O controller 810 may represent a physical connection or port to an external peripheral. In some cases, the I/O controller 810 may utilize an operating system such as or another known operating system. Additionally, or alternatively, the I/O controller 810 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I/O controller 810 may be implemented as part of one or more processors, such as the at least one processor 840. In some cases, a user may interact with the device 805 via the I/O controller 810 or via hardware components controlled by the I/O controller 810.

In some cases, the device 805 may include a single antenna. However, in some other cases, the device 805 may have more than one antenna, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 815 may communicate bi-directionally via the one or more antennas 825 using wired or wireless links as described herein. For example, the transceiver 815 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 815 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 825 for transmission, and to demodulate packets received from the one or more antennas 825. The transceiver 815, or the transceiver 815 and one or more antennas 825, may be an example of a transmitter 515, a transmitter 615, a receiver 510, a receiver 610, or any combination thereof or component thereof, as described herein.

The at least one memory 830 may include random access memory (RAM) and read-only memory (ROM) . The at least one memory 830 may store computer-readable, computer-executable, or processor-executable code, such as the code 835. The code 835 may include instructions that, when executed by the at least one processor 840, cause the device 805 to perform various functions described herein. The code 835 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 835 may not be directly executable by the at least one processor 840 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 830 may include, 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 at least one processor 840 may include one or more intelligent hardware devices (e.g., one or more general-purpose processors, one or more DSPs, one or more CPUs, one or more graphics processing units (GPUs) , one or more neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) , one or more microcontrollers, one or more ASICs, one or more FPGAs, one or more programmable logic devices, discrete gate or transistor logic, one or more discrete hardware components, or any combination thereof) . In some cases, the at least one processor 840 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the at least one processor 840. The at least one processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., the at least one memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks supporting connected LP-WUS activation and deactivation) . For example, the device 805 or a component of the device 805 may include at least one processor 840 and at least one memory 830 coupled with or to the at least one processor 840, the at least one processor 840 and the at least one memory 830 configured to perform various functions described herein.

In some examples, the at least one processor 840 may include multiple processors and the at least one memory 830 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions described herein. In some examples, the at least one processor 840 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 840) and memory circuitry (which may include the at least one memory 830) ) , or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 840 or a processing system including the at least one processor 840 may be configured to, configurable to, or operable to cause the device 805 to perform one or more of the functions described herein. Further, as described herein, being “configured to, ” being “configurable to, ” and being “operable to” may be used interchangeably and may be associated with a capability, when executing code 835 (e.g., processor-executable code) stored in the at least one memory 830 or otherwise, to perform one or more of the functions described herein.

The communications manager 820 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 820 is capable of, configured to, or operable to support a means for receiving first signaling that includes first configuration information associated with one or more LP-WUSs and that includes activation information for monitoring the one or more LP-WUSs, where the activation information instructs the UE to activate or deactivate LP-WUS monitoring. The communications manager 820 is capable of, configured to, or operable to support a means for monitoring, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.

By including or configuring the communications manager 820 in accordance with examples as described herein, the device 805 may support techniques for improved communication reliability, improved user experience related to reduced processing, reduced power consumption, more efficient utilization of communication resources, longer battery life, and improved utilization of processing capability, among other examples.

In some examples, the communications manager 820 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 815, the one or more antennas 825, or any combination thereof. Although the communications manager 820 is illustrated as a separate component, in some examples, one or more functions described herein with reference to the communications manager 820 may be supported by or performed by the at least one processor 840, the at least one memory 830, the code 835, or any combination thereof. For example, the code 835 may include instructions executable by the at least one processor 840 to cause the device 805 to perform various aspects of connected LP-WUS activation and deactivation as described herein, or the at least one processor 840 and the at least one memory 830 may be otherwise configured to, individually or collectively, perform or support such operations.

FIG. 9 shows a flowchart illustrating a method 900 that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure. The operations of the method 900 may be implemented by a UE or its components as described herein. For example, the operations of the method 900 may be performed by a UE 115 as described herein with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.

At 905, the method may include receiving first signaling that includes first configuration information associated with one or more LP-WUSs and that includes activation information for monitoring the one or more LP-WUSs, where the activation information instructs the UE to activate or deactivate LP-WUS monitoring. The operations of 905 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 905 may be performed by a first configuration information component 725 as described herein with reference to FIG. 7.

At 910, the method may include monitoring, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring. The operations of 910 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 910 may be performed by an LP-WUS monitoring component 730 as described herein with reference to FIG. 7.

FIG. 10 shows a flowchart illustrating a method 1000 that supports connected LP-WUS activation and deactivation in accordance with one or more aspects of the present disclosure. The operations of the method 1000 may be implemented by a UE or its components as described herein. For example, the operations of the method 1000 may be performed by a UE 115 as described herein with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.

At 1005, the method may include receiving first signaling that includes first configuration information associated with one or more LP-WUSs and that includes activation information for monitoring the one or more LP-WUSs, where the activation information instructs the UE to activate or deactivate LP-WUS monitoring. The operations of 1005 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1005 may be performed by a first configuration information component 725 as described herein with reference to FIG. 7.

At 1010, the method may include monitoring, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring. The operations of 1010 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1010 may be performed by an LP-WUS monitoring component 730 as described herein with reference to FIG. 7.

At 1015, the method may include transmitting, based on one or more measurement conditions associated with the primary radio, assistance information including a request to activate or deactivate the LP-WUS monitoring. The operations of 1015 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1015 may be performed by an assistance information component 735 as described herein with reference to FIG. 7.

At 1020, the method may include receiving second signaling that includes second activation information based on the request. The operations of 1020 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1020 may be performed by an activation information component 740 as described herein with reference to FIG. 7.

At 1025, the method may include monitoring, or refraining from monitoring, for the one or more LP-WUSs based on the second activation information. The operations of 1025 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1025 may be performed by an LP-WUS monitoring component 730 as described herein with reference to FIG. 7.

The following provides an overview of aspects of the present disclosure:

Aspect 1: A method for wireless communications at a UE, comprising: receiving first signaling that comprises first configuration information associated with one or more LP-WUSs and that comprises activation information for monitoring the one or more LP-WUSs, wherein the activation information instructs the UE to activate or deactivate LP-WUS monitoring; and monitoring, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based at least in part on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.

Aspect 2: The method of aspect 1, further comprising: transmitting, based at least in part on one or more measurement conditions associated with the primary radio, assistance information comprising a request to activate or deactivate the LP-WUS monitoring; receiving second signaling that comprises second activation information based at least in part on the request; and monitoring, or refraining from monitoring, for the one or more LP-WUSs based at least in part on the second activation information.

Aspect 3: The method of aspect 2, wherein the assistance information comprises an indication corresponding to the request, a first value of the indication corresponds to a request to activate the LP-WUS monitoring and a second value of the indication corresponds to a request to deactivate the LP-WUS monitoring.

Aspect 4: The method of any of aspects 2 through 3, wherein the assistance information comprises one or more requests to monitor for the one or more LP-WUSs in accordance with second configuration information, a DRX group, one or more serving cells, one or more serving cell groups, or any combination thereof.

Aspect 5: The method of any of aspects 2 through 4, wherein the request to activate or deactivate the LP-WUS monitoring is based at least in part on a measurement exceeding or not exceeding a threshold, respectively.

Aspect 6: The method of aspect 5, further comprising: receiving third signaling comprising an indication of the one or more measurement conditions and the threshold, wherein transmitting the assistance information is based at least in part on the indication of the one or more measurement conditions and the threshold.

Aspect 7: The method of any of aspects 2 through 6, further comprising: receiving configuration information associated with a timer of the UE that comprises a retransmission count threshold associated with the timer; starting the timer based at least in part on transmitting the assistance information, wherein the timer is reset based at least in part on reception of respective activation information; retransmitting the assistance information based at least in part on an expiration of the timer, wherein a retransmission count is incremented based at least in part on the retransmitted assistance information; and refraining from monitoring the one or more LP-WUSs based at least in part on the retransmission count satisfying the retransmission count threshold.

Aspect 8: The method of any of aspects 1 through 7, wherein the first configuration information comprises one or more monitoring configurations, one or more OOK configurations, a periodicity associated with the one or more LP-WUSs, or any combination thereof.

Aspect 9: The method of aspect 8, further comprising: detecting the one or more LP-WUSs based at least in part on the monitoring, wherein the wake-up radio activates the primary radio in response to detecting the one or more LP-WUSs; and monitoring, via the primary radio, for one or more PDCCH messages based at least in part on the detected one or more LP-WUSs and the one or more monitoring configurations.

Aspect 10: The method of aspect 9, wherein the one or more monitoring configurations comprise a first monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs during a monitoring window of a DRX cycle, a second monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs, or a third monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs during an active window of the DRX cycle.

Aspect 11: The method of any of aspects 1 through 10, wherein the first signaling is received via a MAC-CE message or RRC message.

Aspect 12: The method of any of aspects 1 through 11, wherein the first signaling is received via a current serving cell of the UE, a primary serving cell of the UE, or all serving cells within a configured grant group, and monitoring for the one or more LP-WUSs is based at least in part on receiving the first signaling via the current serving cell, the primary serving cell, or all the serving cells within the configured grant group.

Aspect 13: The method of any of aspects 1 through 12, wherein the activation information is based at least in part on a respective serving cell, one or more serving cell groups, one or more DRX groups, one or more component carriers, one or more component carrier groups, a plurality of configuration information, or any combination thereof, and the plurality of configuration information comprises the first configuration information.

Aspect 14: The method of aspect 13, wherein the activation information further instructs the UE which of the respective serving cell, the one or more serving cell groups, the one or more DRX groups, the one or more component carriers, the one or more component carrier groups, the plurality of configuration information, or any combination thereof, to apply for monitoring the one or more LP-WUSs.

Aspect 15: The method of any of aspects 1 through 14, wherein the first configuration information corresponds to an identifier, and the first signaling further comprises the identifier.

Aspect 16: A UE for wireless communications, comprising one or more memories storing processor-executable code, and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to perform a method of any of aspects 1 through 15.

Aspect 17: A UE for wireless communications, comprising at least one means for performing a method of any of aspects 1 through 15.

Aspect 18: A non-transitory computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors to perform a method of any of aspects 1 through 15.

It should be noted that the methods described herein describe possible implementations. The operations and the steps may be rearranged or otherwise modified and other implementations are possible. Further, aspects from two or more of the methods may be combined.

Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communications systems such as Ultra Mobile Broadband (UMB) , Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM, as well as other systems and radio technologies not explicitly mentioned herein.

Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed using a general-purpose processor, a DSP, an ASIC, a CPU, a graphics processing unit (GPU) , a neural processing unit (NPU) , an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor but, in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration) . Any functions or operations described herein as being capable of being performed by a processor may be performed by multiple processors that, individually or collectively, are capable of performing the described functions or operations.

The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as or transmitted using one or more instructions or code of a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.

Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD) , floppy disk, and Blu-ray disc. Disks may reproduce data magnetically, and discs may reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media. Any functions or operations described herein as being capable of being performed by a memory may be performed by multiple memories that, individually or collectively, are capable of performing the described functions or operations.

As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. ”

As used herein, including in the claims, the article “a” before a noun is open-ended and understood to refer to “at least one” of those nouns or “one or more” of those nouns. Thus, the terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. For example, if a claim recites “acomponent” that performs one or more functions, each of the individual functions may be performed by a single component or by any combination of multiple components. Thus, the term “acomponent” having characteristics or performing functions may refer to “at least one of one or more components” having a particular characteristic or performing a particular function. Subsequent reference to a component introduced with the article “a” using the terms “the” or “said” may refer to any or all of the one or more components. For example, a component introduced with the article “a” may be understood to mean “one or more components, ” and referring to “the component” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ” Similarly, subsequent reference to a component introduced as “one or more components” using the terms “the” or “said” may refer to any or all of the one or more components. For example, referring to “the one or more components” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ”

The term “determine” or “determining” encompasses a variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database, or another data structure) , ascertaining, and the like. Also, “determining” can include receiving (e.g., receiving information) , accessing (e.g., accessing data stored in memory) , and the like. Also, “determining” can include resolving, obtaining, selecting, choosing, establishing, and other such similar actions.

In the appended figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If just the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label or other subsequent reference label.

The description set forth herein, in connection with the appended drawings, describes example configurations and does not represent all the examples that may be implemented or that are within the scope of the claims. The term “example” used herein means “serving as an example, instance, or illustration” and not “preferred” or “advantageous over other examples. ” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. In some figures, known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.

The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

A user equipment (UE) , comprising:

one or more memories storing processor-executable code; and

one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to:

receive first signaling that comprises first configuration information associated with one or more low-power wake-up signals (LP-WUSs) and that comprises activation information for monitoring the one or more LP-WUSs, wherein the activation information instructs the UE to activate or deactivate LP-WUS monitoring; and

monitor, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based at least in part on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.
The UE of claim 1, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:

transmit, based at least in part on one or more measurement conditions associated with the primary radio, assistance information comprising a request to activate or deactivate the LP-WUS monitoring;

receive second signaling that comprises second activation information based at least in part on the request; and

monitor, or refrain from monitoring, for the one or more LP-WUSs based at least in part on the second activation information.
The UE of claim 2, wherein the assistance information comprises an indication corresponding to the request, and wherein a first value of the indication corresponds to a request to activate the LP-WUS monitoring and a second value of the indication corresponds to a request to deactivate the LP-WUS monitoring.
The UE of claim 2, wherein the assistance information comprises one or more requests to monitor for the one or more LP-WUSs in accordance with second configuration information, a discontinuous receive group, one or more serving cells, one or more serving cell groups, or any combination thereof.
The UE of claim 2, wherein the request to activate or deactivate the LP-WUS monitoring is based at least in part on a measurement exceeding or not exceeding a threshold, respectively.
The UE of claim 5, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:

receive third signaling comprising an indication of the one or more measurement conditions and the threshold, wherein the one or more processors are individually or collectively operable to execute the code to cause the UE to transmit the assistance information based at least in part on the indication of the one or more measurement conditions and the threshold.
The UE of claim 2, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:

receive configuration information associated with a timer of the UE that comprises a retransmission count threshold associated with the timer;

start the timer based at least in part on transmitting the assistance information, wherein the timer is reset based at least in part on reception of respective activation information;

retransmit the assistance information based at least in part on an expiration of the timer, wherein a retransmission count is incremented based at least in part on the retransmitted assistance information; and

refrain from monitoring the one or more LP-WUSs based at least in part on the retransmission count satisfying the retransmission count threshold.
The UE of claim 1, wherein the first configuration information comprises one or more monitoring configurations, one or more on-off keying configurations, a periodicity associated with the one or more LP-WUSs, or any combination thereof.
The UE of claim 8, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:

detect the one or more LP-WUSs based at least in part on the monitoring, wherein the wake-up radio activates the primary radio in response to detecting the one or more LP-WUSs; and

monitor, via the primary radio, for one or more physical downlink control channel (PDCCH) messages based at least in part on the detected one or more LP-WUSs and the one or more monitoring configurations.
The UE of claim 9, wherein the one or more monitoring configurations comprise a first monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs during a monitoring window of a discontinuous receive cycle, a second monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs, or a third monitoring configuration associated with monitoring for the one or more PDCCH messages in response to detecting the one or more LP-WUSs during an active window of the discontinuous receive cycle.
The UE of claim 1, wherein the first signaling is received via a medium access control-control element message or a radio resource control message.
The UE of claim 1, wherein:

the one or more processors are individually or collectively further operable to execute the code to cause the UE to receive the first signaling via a current serving cell of the UE, a primary serving cell of the UE, or all serving cells within a configured grant group, and

the one or more processors are individually or collectively further operable to execute the code to cause the UE to monitor for the one or more LP-WUSs based at least in part on receiving the first signaling via the current serving cell, the primary serving cell, or all the serving cells within the configured grant group.
The UE of claim 1, wherein the activation information is based at least in part on a respective serving cell, one or more serving cell groups, one or more discontinuous receive groups, one or more component carriers, one or more component carrier groups, a plurality of configuration information, or any combination thereof, and wherein the plurality of configuration information comprises the first configuration information.
The UE of claim 13, wherein the activation information further instructs the UE which of the respective serving cell, the one or more serving cell groups, the one or more discontinuous receive groups, the one or more component carriers, the one or more component carrier groups, the plurality of configuration information, or any combination thereof, to apply for monitoring the one or more LP-WUSs.
The UE of claim 1, wherein the first configuration information corresponds to an identifier, and wherein the first signaling further comprises the identifier.
A method for wireless communications at a user equipment (UE) , comprising:

receiving first signaling that comprises first configuration information associated with one or more low-power wake-up signals (LP-WUSs) and that comprises activation information for monitoring the one or more LP-WUSs, wherein the activation information instructs the UE to activate or deactivate LP-WUS monitoring; and

monitoring, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based at least in part on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.
The method of claim 16, further comprising:

transmitting, based at least in part on one or more measurement conditions associated with the primary radio, assistance information comprising a request to activate or deactivate the LP-WUS monitoring;

receiving second signaling that comprises second activation information based at least in part on the request; and

monitoring, or refraining from monitoring, for the one or more LP-WUSs based at least in part on the second activation information.
The method of claim 17, further comprising:

receiving configuration information associated with a timer of the UE that comprises a retransmission count threshold associated with the timer;

starting the timer based at least in part on transmitting the assistance information, wherein the timer is reset based at least in part on reception of respective activation information;

retransmitting the assistance information based at least in part on an expiration of the timer, wherein a retransmission count is incremented based at least in part on the retransmitted assistance information; and

refraining from monitoring the one or more LP-WUSs based at least in part on the retransmission count satisfying the retransmission count threshold.
The method of claim 16, wherein the first configuration information comprises one or more monitoring configurations, one or more on-off keying configurations, a periodicity associated with the one or more LP-WUSs, or any combination thereof.
A non-transitory computer-readable medium storing code for wireless communications at a user equipment (UE) , the code comprising instructions executable by one or more processors to:

receive first signaling that comprises first configuration information associated with one or more low-power wake-up signals (LP-WUSs) and that comprises activation information for monitoring the one or more LP-WUSs, wherein the activation information instructs the UE to activate or deactivate LP-WUS monitoring; and

monitor, using a wake-up radio of the UE while a primary radio of the UE is in a sleep mode, for the one or more LP-WUSs based at least in part on the first configuration information and the activation information instructing the UE to activate LP-WUS monitoring.