Wakeup signal monitoring within discontinuous reception active times
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- QUALCOMM INC
- Filing Date
- 2025-01-31
- Publication Date
- 2026-08-06
Smart Images

Figure CN2025075619_06082026_PF_FP_ABST
Abstract
Description
WAKEUP SIGNAL MONITORING WITHIN DISCONTINUOUS RECEPTION ACTIVE TIMESTECHNICAL FIELD
[0001] The following relates to wireless communications, including wakeup signal monitoring within discontinuous reception active times.BACKGROUND
[0002] 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
[0003] 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.
[0004] A method for wireless communications by a user equipment (UE) is described. The method may include receiving first control signaling that triggers an active time of a discontinuous reception (DRX) period, receiving second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals (LP-WUSs) , and monitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling.
[0005] 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 control signaling that triggers an active time of a DRX period, receive second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs, and monitor a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling.
[0006] Another UE for wireless communications is described. The UE may include means for receiving first control signaling that triggers an active time of a DRX period, means for receiving second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs, and means for monitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling.
[0007] 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 control signaling that triggers an active time of a DRX period, receive second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs, and monitor a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling.
[0008] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving third control signaling that configures, outside of the active time of the DRX period, one or more second wakeup signal monitoring occasions associated with triggering the active time and receiving a LP-WUS within a second wakeup signal monitoring occasion of the one or more second wakeup signal monitoring occasions outside of the active time, where the wakeup signal monitoring occasion within the active time and may be monitored based on reception of the LP-WUS outside of the active time.
[0009] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the second control signaling configures the one or more wakeup signal monitoring occasions with a first periodicity, a first duration, a first bandwidth , or any combination thereof that may be different than a second periodicity, a second duration, a second bandwidth, or any combination thereof of the one or more second wakeup signal monitoring occasions.
[0010] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the second control signaling includes a field that indicates that the one or more wakeup signal monitoring occasions configured by the second control signaling may be within the active time of the DRX period.
[0011] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting an indication of a threshold delay for activating a main radio of the UE after reception of a LP-WUS within the active time, where the second control signaling may be based on the threshold delay.
[0012] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the threshold delay may be different than a second threshold delay for activating the main radio after reception of a LP-WUS outside of the active time.
[0013] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving a downlink control information (DCI) message that indicates a control channel skipping duration for skipping monitoring of one or more control channel monitoring occasions within the active time, where at least the wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions may be monitored based on being within the control channel skipping duration.
[0014] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the one or more wakeup signal monitoring occasions within the active time may be monitored based on the control channel skipping duration satisfying a threshold duration.
[0015] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, a value of the control channel skipping duration indicates to monitor the one or more wakeup signal monitoring occasions for an entirety of the active time.
[0016] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the DCI message may be a non-data scheduling DCI message.
[0017] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for monitoring one or more second control channel monitoring occasions that may be within the active time and outside of the control channel skipping duration.
[0018] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving third control signaling that configures one or more search space set groups (SSSGs) that may be associated with monitoring wakeup signals within the active time, where each SSSG includes a respective set of control channel monitoring occasions within the active time and receiving fourth control signaling that indicates for the UE to monitor a SSSG of the one or more SSSGs associated with monitoring wakeup signals within the active time, where at least the wakeup signal monitoring occasion within the active time may be monitored based on the UE being indicated to monitor the SSSG of the one or more SSSGs.
[0019] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving a LP-WUS based on monitoring the wakeup signal monitoring occasion within the active time and switching, within the active time and in response to receiving the LP-WUS, to monitor a second SSSG excluded from the one or more SSSGs associated with monitoring wakeup signals within the active time.
[0020] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for communicating a quantity of temporally first control channel monitoring occasions that may be within the active time and of the SSSG and skipping monitoring of up to the quantity of temporally first control channel monitoring occasions within the active time based on the quantity being communicated.
[0021] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the one or more SSSGs associated with monitoring wakeup signals within the active time include fewer control channel monitoring occasions within the active time than a SSSG that may be excluded from the one or more SSSGs.
[0022] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving third control signaling that configures a first downlink control channel configuration associated with monitoring wakeup signals within the active time and a second downlink control channel configuration associated with not monitoring wakeup signals within the active time, where the wakeup signal monitoring occasion may be monitored within the active time according to the first downlink control channel configuration based on receiving the second control signaling that configures the one or more wakeup signal monitoring occasions within the active time.
[0023] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the first downlink control channel configuration includes a first set of candidate control channel skipping durations, a first set of candidate SSSGs, or both that may be different than a second set of candidate control channel skipping durations, a second set of candidate SSSGs, or both included in the second downlink control channel configuration.
[0024] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for monitoring one or more control channel monitoring occasions exclusively for DCI messages of a set of formats based on failing to receive a LP-WUS within the one or more wakeup signal monitoring occasions, where the one or more control channel monitoring occasions may be within the active time and after the wakeup signal monitoring occasion.
[0025] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving third control signaling that configures the set of formats.
[0026] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the set of formats includes a DCI format 0_0, a DCI format 1_0, or both, for uplink scheduling, downlink scheduling, or both.
[0027] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for failing to receive a LP-WUS within the one or more wakeup signal monitoring occasions, detecting a control message within a control channel monitoring occasion that may be within the active time and after the wakeup signal monitoring occasion, and transmitting an indication that wakeup signal monitoring within the active time may be deactivated based on the LP-WUS not being received and the control message being detected within the active time.
[0028] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving control signaling that reactivates wakeup signal monitoring within the active time based on transmitting the indication that wakeup signal monitoring within the active time may be deactivated.
[0029] A method for wireless communications by a network entity is described. The method may include transmitting first control signaling that triggers an active time of a DRX period, transmitting second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals, transmitting a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time, and transmitting, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.
[0030] A network entity for wireless communications is described. The network entity 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 network entity to transmit first control signaling that triggers an active time of a DRX period, transmit second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals, transmit a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time, and transmit, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.
[0031] Another network entity for wireless communications is described. The network entity may include means for transmitting first control signaling that triggers an active time of a DRX period, means for transmitting second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals, means for transmitting a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time, and means for transmitting, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.
[0032] 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 transmit first control signaling that triggers an active time of a DRX period, transmit second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals, transmit a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time, and transmit, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.
[0033] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting third control signaling that configures, outside of the active time of the DRX period, one or more second wakeup signal monitoring occasions associated with triggering the active time and transmitting a second LP-WUS within a second wakeup signal monitoring occasion of the one or more second wakeup signal monitoring occasions outside of the active time, where the wakeup signal monitoring occasion may be within the active time and may be transmitted based on transmission of the LP-WUS outside of the active time.
[0034] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the second control signaling configures the one or more wakeup signal monitoring occasions with a first periodicity, a first duration, a first bandwidth, or any combination thereof that may be different than a second periodicity, a second duration, a second bandwidth, or any combination thereof of the one or more second wakeup signal monitoring occasions.
[0035] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the second control signaling includes a field that indicates that the one or more wakeup signal monitoring occasions configured by the second control signaling may be within the active time of the DRX period.
[0036] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving an indication of a threshold delay for activation of a main radio of a UE within the active time, where the second control signaling may be based on the threshold delay.
[0037] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the threshold delay may be different than a second threshold delay for activating the main radio of the UE outside of the active time.
[0038] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting a DCI message that indicates a control channel skipping duration for skipping monitoring of one or more control channel monitoring occasions within the active time, where at least the wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions may be monitored based on being within the control channel skipping duration.
[0039] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the one or more wakeup signal monitoring occasions within the active time may be monitored based on the control channel skipping duration satisfying a threshold duration.
[0040] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, a value of the control channel skipping duration indicates to monitor the one or more wakeup signal monitoring occasions for an entirety of the active time.
[0041] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the DCI message may be a non-data scheduling DCI message.
[0042] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting a second DCI message in one or more second control channel monitoring occasions that may be within the active time and outside of the control channel skipping duration.
[0043] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting third control signaling that configures one or more SSSGs that may be associated with monitoring wakeup signals within the active time, where each SSSG includes a respective set of control channel monitoring occasions within the active time and transmitting fourth control signaling that indicates for a UE to monitor a SSSG of the one or more SSSGs associated with monitoring wakeup signals within the active time, where at least the LP-WUS may be transmitted within the active time based on the fourth control signaling being transmitted.
[0044] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for communicating, with the UE, a quantity of temporally first control channel monitoring occasions that may be within the active time and of the SSSG.
[0045] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the one or more SSSGs associated with monitoring wakeup signals within the active time include fewer control channel monitoring occasions within the active time than a SSSG that may be excluded from the one or more SSSGs.
[0046] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting third control signaling that configures a first downlink control channel configuration associated with monitoring wakeup signals within the active time and a second downlink control channel configuration associated with not monitoring wakeup signals within the active time, where the LP-WUS may be transmitted within the active time according to the first downlink control channel configuration based on transmitting the second control signaling that configures the one or more wakeup signal monitoring occasions within the active time.
[0047] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the first downlink control channel configuration includes a first set of candidate control channel skipping durations, a first set of candidate SSSGs, or both that may be different than a second set of candidate control channel skipping durations, a second set of candidate SSSGs, or both included in the second downlink control channel configuration.
[0048] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting DCI messages of a set of formats during one or more control channel monitoring occasions within the active time, where the one or more control channel monitoring occasions may be within the active time and after the wakeup signal monitoring occasion.
[0049] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting third control signaling that configures the set of formats at a UE.
[0050] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the set of formats includes a DCI format 0_0, a DCI format 1_0, or both, for uplink scheduling, downlink scheduling, or both.
[0051] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from a UE, an indication that wakeup signal monitoring within the active time may be deactivated for the UE.
[0052] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting control signaling that reactivates wakeup signal monitoring within the active time for the UE based on determining that a channel condition associated with the UE satisfies a threshold channel condition.
[0053] 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
[0054] FIG. 1 shows an example of a wireless communications system that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.
[0055] FIG. 2 shows an example of a wireless communications system that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.
[0056] FIG. 3 shows an example of a LP-WUS configuration that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.
[0057] FIG. 4 shows an example of a LP-WUS configuration that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.
[0058] FIGs. 5 and 6 show block diagrams of devices that support wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.
[0059] FIG. 7 shows a block diagram of a communications manager that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.
[0060] FIG. 8 shows a diagram of a system including a device that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.
[0061] FIGs. 9 and 10 show block diagrams of devices that support wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.
[0062] FIG. 11 shows a block diagram of a communications manager that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.
[0063] FIG. 12 shows a diagram of a system including a device that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.
[0064] FIGs. 13 through 17 show flowcharts illustrating methods that support wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure.DETAILED DESCRIPTION
[0065] In some wireless communications systems, a user equipment (UE) may be configured to monitor for low-power wakeup signals (LP-WUSs) to enter a configured active time (e.g., an active duration, an ON duration) of a discontinuous reception (DRX) period (e.g., DRX cycle) . For example, to save power, the UE may use a low-power wakeup radio (LP-WUR) to monitor one or more LP-WUS monitoring occasions outside of the active monitoring time. If the UE receives a LP-WUS during the LP-WUS monitoring occasions, the UE may activate a main radio (MR) of the UE to monitor for downlink control signaling (e.g., physical downlink control channel (PDCCH) transmissions) during the configured active time. However, in some cases, the UE may enter the active time and only receive signaling for part or none of the active time, which may waste power as the MR monitors for signaling. Additionally, LP-WUS monitoring occasions configured outside of the active time may lack granularity or other aspects to effectively schedule signaling within the active time. Thus, techniques to reduce power usage within the active time may be beneficial to the UE and to the wireless communications system.
[0066] According to techniques described herein, a UE may receive a first configuration (e.g., first control signaling) that configures one or more LP-WUS monitoring occasions within the active time of a DRX cycle, and the UE may monitor one or more of the LP-WUS monitoring occasions within the active time. For example, if the UE receives a LP-WUS during a LP-WUS monitoring occasion within the active time, the UE may monitor for downlink signaling in a control channel monitoring occasion (e.g., a PDCCH monitoring occasion) within the active time that is associated with the LP-WUS monitoring occasion. In some cases, the first configuration may be different than a second configuration (e.g., second control signaling) that configures the LP-WUS monitoring occasions outside of the active duration. For example, the first configuration may configure the LP-WUS monitoring occasions within the active time to be of a different density (e.g., periodicity) , have different durations, use different bandwidth (e.g., frequency resources) , or any combination thereof. In some cases, wakeup signal monitoring within the active time may be activated by the UE receiving a PDCCH skipping duration indication for the active duration in a downlink control information (DCI) , switching to a configured search space set group (SSSG) associated with wakeup signal monitoring in the active time, or both. Additionally, or alternatively, the UE may receive a first PDCCH configuration to use when wakeup signal monitoring within the active time is activated and a second PDCCH configuration to use when wakeup signal monitoring within the active time is deactivated. For example, the first PDCCH configuration may include candidate PDCCH skipping durations, candidate SSSGs, or both, that are more conducive to saving power via LP-WUS monitoring within the active time than candidate PDCCH skipping durations, candidate SSSGs, or both, of the second PDCCH configuration. Accordingly, the UE may experience reduced power usage and maintain high communication quality within the active time of the DRX period.
[0067] Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to wakeup signal monitoring within discontinuous reception active times.
[0068] FIG. 1 shows an example of a wireless communications system 100 that supports wakeup signal monitoring within discontinuous reception active times 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.
[0069] 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 coverage area 110 (e.g., a geographic coverage area) over which the UEs 115 and the network entity 105 may establish the communication link (s) 125. The 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) .
[0070] The UEs 115 may be dispersed throughout a 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.
[0071] UEs 115 may be dispersed throughout the wireless communications system 100, and each UE 115 may be stationary or mobile. A UE 115 may also 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. A UE 115 may be a device such as a cellular phone, a smart phone, a personal digital assistant (PDA) , a multimedia / entertainment device (e.g., a radio, a MP3 player, or a video device) , a camera, a gaming device, a navigation / positioning device (e.g., GNSS (global navigation satellite system) devices based on, for example, GPS (global positioning system) , Beidou, GLONASS, or Galileo, or a terrestrial-based device) , a tablet computer, a laptop computer, a netbook, a smartbook, a personal computer, a smart device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, virtual reality goggles, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet) ) , a drone, a robot / robotic device, a vehicle, a vehicular device, a meter (e.g., parking meter, electric meter, gas meter, water meter) , a monitor, a gas pump, an appliance (e.g., kitchen appliance, washing machine, dryer) , a location tag, a medical / healthcare device, an implant, a sensor / actuator, a display, or any other suitable device configured to communicate via a wireless or wired medium. In some examples, a UE 115 may also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, or the like, which may be implemented in various articles such as appliances, drones, robots, vehicles, meters, or the like.
[0072] Some UEs 115, such as MTC or IoT devices, may be low cost or low complexity devices, and may provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication) . M2M communication or MTC may refer to data communication technologies that allow devices to communicate with one another or a base station 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay that information to a central server or application program that can make use of the information or present the information to humans interacting with the program or application. Some UEs 115 may be designed to collect information or enable automated behavior of machines. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging. In an aspect, techniques disclosed herein may be applicable to MTC or IoT UEs. MTC or IoT UEs may include MTC / enhanced MTC (eMTC, also referred to as CAT-M, Cat M1) UEs, NB-IoT (also referred to as CAT NB1) UEs, as well as other types of UEs. eMTC and NB-IoT may refer to future technologies that may evolve from or may be based on these technologies. For example, eMTC may include FeMTC (further eMTC) , eFeMTC (enhanced further eMTC) , and mMTC (massive MTC) , and NB-IoT may include eNB-IoT (enhanced NB-IoT) , and FeNB-IoT (further enhanced NB-IoT) .
[0073] 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 multiple-access systems capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) . A wireless network, for example a wireless local area network (WLAN) , such as a Wi-Fi (e.g., Institute of Electrical and Electronics Engineers (IEEE) 802.11) network may include an access point (AP) that may communicate with one or more wireless or mobile devices. The AP may be coupled to a network, such as the Internet, and may enable a mobile device to communicate via the network (or communicate with other devices coupled to the access point) . A wireless device may communicate with a network device bi-directionally. For example, in a WLAN, a device may communicate with an associated AP via downlink (e.g., the communication link from the AP to the device) and uplink (e.g., the communication link from the device to the AP) . A wireless personal area network (PAN) , which may include a Bluetooth connection, may provide for short range wireless connections between two or more paired wireless devices. For example, wireless devices such as cellular phones may utilize wireless PAN communications to exchange information such as audio signals with wireless headsets. Components within a wireless communication system may be coupled (for example, operatively, communicatively, functionally, electronically, and / or electrically) to each other.
[0074] 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.
[0075] 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.
[0076] 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) .
[0077] 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) ) .
[0078] 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.
[0079] 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.
[0080] For instance, an access network (AN) or RAN may include communications between access nodes (e.g., an IAB donor) , IAB node (s) 104, and one or more UEs 115. The IAB donor may facilitate connection between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130) . That is, an IAB donor may refer to a RAN node with a wired or wireless connection to the core network 130. The IAB donor may include one or more of a CU 160, a DU 165, and an RU 170, in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link) . The IAB donor and IAB node (s) 104 may communicate via an F1 interface according to a protocol that defines signaling messages (e.g., an F1 AP protocol) . Additionally, or alternatively, the CU 160 may communicate with the core network 130 via an interface, which may be an example of a portion of a backhaul link, and may communicate with other CUs (e.g., including a CU 160 associated with an alternative IAB donor) via an Xn-C interface, which may be an example of another portion of a backhaul link.
[0081] IAB node (s) 104 may refer to RAN nodes that provide IAB functionality (e.g., access for UEs 115, wireless self-backhauling capabilities) . A DU 165 may act as a distributed scheduling node towards child nodes associated with the IAB node (s) 104, and the IAB-MT may act as a scheduled node towards parent nodes associated with IAB node (s) 104. That is, an IAB donor may be referred to as a parent node in communication with one or more child nodes (e.g., an IAB donor may relay transmissions for UEs through other IAB node (s) 104) . Additionally, or alternatively, IAB node (s) 104 may also be referred to as parent nodes or child nodes to other IAB node (s) 104, depending on the relay chain or configuration of the AN. The IAB-MT entity of IAB node (s) 104 may provide a Uu interface for a child IAB node (e.g., the IAB node (s) 104) to receive signaling from a parent IAB node (e.g., the IAB node (s) 104) , and a DU interface (e.g., a DU 165) may provide a Uu interface for a parent IAB node to signal to a child IAB node or UE 115.
[0082] For example, IAB node (s) 104 may be referred to as parent nodes that support communications for child IAB nodes, or may be referred to as child IAB nodes associated with IAB donors, or both. An IAB donor may include a CU 160 with a wired or wireless connection (e.g., backhaul communication link (s) 120) to the core network 130 and may act as a parent node to IAB node (s) 104. For example, the DU 165 of an IAB donor may relay transmissions to UEs 115 through IAB node (s) 104, or may directly signal transmissions to a UE 115, or both. The CU 160 of the IAB donor may signal communication link establishment via an F1 interface to IAB node (s) 104, and the IAB node (s) 104 may schedule transmissions (e.g., transmissions to the UEs 115 relayed from the IAB donor) through one or more DUs (e.g., DUs 165) . That is, data may be relayed to and from IAB node (s) 104 via signaling via an NR Uu interface to MT of IAB node (s) 104 (e.g., other IAB node (s) ) . Communications with IAB node (s) 104 may be scheduled by a DU 165 of the IAB donor or of IAB node (s) 104.
[0083] 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 wakeup signal monitoring within discontinuous reception active times 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) .
[0084] 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.
[0085] 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.
[0086] 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) .
[0087] In some examples, such as in a carrier aggregation configuration, a carrier may have acquisition signaling or control signaling that coordinates operations for other carriers. A carrier may be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute RF channel number (EARFCN) ) and may be identified according to a channel raster for discovery by the UEs 115. A carrier may be operated in a standalone mode, in which case initial acquisition and connection may be conducted by the UEs 115 via the carrier, or the carrier may be operated in a non-standalone mode, in which case a connection is anchored using a different carrier (e.g., of the same or a different RAT) .
[0088] 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) .
[0089] A carrier may be associated with a particular bandwidth of the RF spectrum and, in some examples, the carrier bandwidth may be referred to as a “system bandwidth” of the carrier or the wireless communications system 100. For example, the carrier bandwidth may be one of a set of bandwidths for carriers of a particular RAT (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz) ) . Devices of the wireless communications system 100 (e.g., the network entities 105, the UEs 115, or both) may have hardware configurations that support communications using a particular carrier bandwidth or may be configurable to support communications using one of a set of carrier bandwidths. In some examples, the wireless communications system 100 may include network entities 105 or UEs 115 that support concurrent communications using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured for operating using portions (e.g., a sub-band, a BWP) or all of a carrier bandwidth.
[0090] 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.
[0091] One or more numerologies for a carrier may be supported, and a numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time and communications for the UE 115 may be restricted to one or more active BWPs.
[0092] 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 Ts=1 / (Δfmax·Nf) seconds, for which Δfmax may represent a supported subcarrier spacing, and Nf 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) .
[0093] 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., Nf) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.
[0094] 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) ) .
[0095] 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) .
[0096] A network entity 105 may provide communication coverage via one or more cells, for example a macro cell, a small cell, a hot spot, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with a network entity 105 (e.g., using a carrier) and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCID) , a virtual cell identifier (VCID) ) . In some examples, a cell also may refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) over which the logical communication entity operates. Such cells may range from smaller areas (e.g., a structure, a subset of structure) to larger areas depending on various factors such as the capabilities of the network entity 105. For example, a cell may be or include a building, a subset of a building, or exterior spaces between or overlapping with coverage areas 110, among other examples.
[0097] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by the UEs 115 with service subscriptions with the network provider supporting the macro cell. A small cell may be associated with a network entity 105 operating with lower power (e.g., a base station 140 operating with lower power) relative to a macro cell, and a small cell may operate using the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells may provide unrestricted access to the UEs 115 with service subscriptions with the network provider or may provide restricted access to the UEs 115 having an association with the small cell (e.g., the UEs 115 in a closed subscriber group (CSG) , the UEs 115 associated with users in a home or office) . A network entity 105 may support one or more cells and may also support communications via the one or more cells using one or multiple component carriers.
[0098] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT) , enhanced mobile broadband (eMBB) ) that may provide access for different types of devices.
[0099] 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 coverage area 110. In some examples, coverage areas 110 (e.g., different coverage areas) associated with different technologies may overlap, but the 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 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 coverage areas 110 (e.g., different coverage areas) using the same or different RATs.
[0100] 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.
[0101] Some UEs 115, such as MTC or IoT devices, may be relatively low cost or low complexity devices and may provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication) . M2M communication or MTC may refer to data communication technologies that allow devices to communicate with one another or a network entity 105 (e.g., a base station 140) without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application program that uses the information or presents the information to humans interacting with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.
[0102] 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.
[0103] 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.
[0104] 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 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 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.
[0105] In some systems, a D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115) . In some examples, vehicles may communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these. A vehicle may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or with the network via one or more network nodes (e.g., network entities 105, base stations 140, RUs 170) using vehicle-to-network (V2N) communications, or with both.
[0106] 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.
[0107] 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.
[0108] The wireless communications system 100 may also operate using a super high frequency (SHF) region, which may be in the range of 3 GHz to 30 GHz, also known as the centimeter band, or using an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) , also known as the millimeter band. In some examples, the wireless communications system 100 may support millimeter wave (mmW) communications between the UEs 115 and the network entities 105 (e.g., base stations 140, RUs 170) , and EHF antennas of the respective devices may be smaller and more closely spaced than UHF antennas. In some examples, such techniques may facilitate using antenna arrays within a device. The propagation of EHF transmissions, however, may be subject to even greater attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions that use one or more different frequency regions, and designated use of bands across these frequency regions may differ by country or regulating body.
[0109] 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.
[0110] 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.
[0111] The network entities 105 or the UEs 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. The multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas. Likewise, the multiple signals may be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords) . Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO) , for which multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO) , for which multiple spatial layers are transmitted to multiple devices.
[0112] 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) .
[0113] A network entity 105 or a UE 115 may use beam sweeping techniques as part of beamforming operations. For example, a network entity 105 (e.g., a base station 140, an RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to conduct beamforming operations for directional communications with a UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by a network entity 105 multiple times along different directions. For example, the network entity 105 may transmit a signal according to different beamforming weight sets associated with different directions of transmission. Transmissions along different beam directions may be used to identify (e.g., by a transmitting device, such as a network entity 105, or by a receiving device, such as a UE 115) a beam direction for later transmission or reception by the network entity 105.
[0114] Some signals, such as data signals associated with a particular receiving device, may be transmitted by a transmitting device (e.g., a network entity 105 or a UE 115) along a single beam direction (e.g., a direction associated with the receiving device, such as another network entity 105 or UE 115) . In some examples, the beam direction associated with transmissions along a single beam direction may be determined based on a signal that was transmitted along one or more beam directions. For example, a UE 115 may receive one or more of the signals transmitted by the network entity 105 along different directions and may report to the network entity 105 an indication of the signal that the UE 115 received with a highest signal quality or an otherwise acceptable signal quality.
[0115] In some examples, transmissions by a device (e.g., by a network entity 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from a network entity 105 to a UE 115) . The UE 115 may report feedback that indicates precoding weights for one or more beam directions, and the feedback may correspond to a configured set of beams across a system bandwidth or one or more sub-bands. The network entity 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS) , a channel state information reference signal (CSI-RS) ) , which may be precoded or unprecoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook) . Although these techniques are described with reference to signals transmitted along one or more directions by a network entity 105 (e.g., a base station 140, an RU 170) , a UE 115 may employ similar techniques for transmitting signals multiple times along different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal along a single direction (e.g., for transmitting data to a receiving device) .
[0116] A receiving device (e.g., a UE 115) may perform reception operations in accordance with multiple receive configurations (e.g., directional listening) when receiving various signals from a transmitting device (e.g., a network entity 105) , such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a receiving device may perform reception in accordance with multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions. In some examples, a receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal) . The single receive configuration may be aligned along a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio (SNR) , or otherwise acceptable signal quality based on listening according to multiple beam directions) .
[0117] 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.
[0118] The UEs 115 and the network entities 105 may support retransmissions of data to increase the likelihood that data is received successfully. Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that data is received correctly via a communication link (e.g., the communication link (s) 125, a D2D communication link 135) . HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC) ) , forward error correction (FEC) , and retransmission (e.g., automatic repeat request (ARQ) ) . HARQ may improve throughput at the MAC layer in relatively poor radio conditions (e.g., low signal-to-noise conditions) . In some examples, a device may support same-slot HARQ feedback, in which case the device may provide HARQ feedback in a specific slot for data received via a previous symbol in the slot. In some other examples, the device may provide HARQ feedback in a subsequent slot, or according to some other time interval.
[0119] A UE 115 may receive first control signaling that triggers an active time of a DRX period. The UE 115 may receive second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs. A UE 115 may monitor a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based at least in part on the second control signaling.
[0120] A network entity 105 may transmit first control signaling that triggers an active time of a discontinuous reception period. A network entity 105 may transmit second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals. The network entity 105 may transmit a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time. The network entity 105 may transmit, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.
[0121] FIG. 2 shows an example of a wireless communications system 200 that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure. The wireless communications system 200 may implement aspects of or be implemented by aspects of the wireless communications system 100. The wireless communications system 200 may include a UE 205 and a network entity 210, which may be examples of the corresponding devices described herein.
[0122] Wireless networks may support use of LP-WUS transmissions to help UE save battery power. In some aspects, this may include replacing PDCCH monitoring by the UE by using the LP-WUS to trigger the PDCCH monitoring (e.g., rather than continuous PDCCH monitoring by the UE) . In general, LP-WUS monitoring consumes much less power than PDCCH monitoring. The LP-WUS may be generated using on-off keying (OOK) modulation and the corresponding envelop detection (ED) based LP-WUS monitoring at the UE may allow for simple architecture and lower operational power consumption. In some aspects, the UE contains a LP wakeup receiver (LP-WUR or LR) and a main radio (MR) which is the primary wireless transceiver. When the LP-WUR is enabled to monitor the LP-WUS transmissions, MR is put into sleep mode for power saving. Once a LP-WUS is received that triggers PDCCH monitoring for the UE, the MR is switched on (e.g., awaken) to monitor PDCCHs.
[0123] Accordingly, for UE operating in a connected mode or state, a power saving gain is achieved by replacing the constant PDCCH monitoring by LP-WUS triggered PDCCH monitoring. In the connected mode, LP-WUS is used to trigger the PDCCH monitoring. In some networks, three modes may be supported. A first mode includes LP-WUS monitoring according to the LP-WUS monitoring configuration before a drx-onDurationTimer to trigger the start of the drx-onDurationTimer. For example, the LP-WUS may replace the PDCCH-based WUS (e.g., using a DCI with a CRC scrambled by a PS-RNTI (DCP) , such as using a DCI format 2_6) . Some wireless networks may assume DCP and this mode may not be configured simultaneously for a UE.
[0124] A second mode may include LP-WUS monitoring outside at least a legacy C-DRX active time according to the LP-WUS monitoring configuration to trigger the PDCCH monitoring. From the PDCCH monitoring perspective, this may be equivalent to legacy C-DRX with shorter cycles. In some networks the drx-onDurationTimer is not started with this second mode LP-WUS configuration. Some networks may introduce a new timer triggered by the LP-WUS. When this new timer is running, the UE is considered to be in a C-DRX active time. A third mode may include LP-WUS monitoring inside at least a legacy C-DRX active time according to the LP-WUS monitoring configuration to trigger PDCCH monitoring. This mode may be configured together with the first mode, the second mode, or both modes, to further reduce power consumption for blind PDCCH decoding within the C-DRX active time.
[0125] As discussed, in the first mode, the second mode, or in both modes the LP-WUS can be used to trigger the UE to monitor the PDCCH within a C-DRX active time. However, neither mode requires the UE to monitor the LP-WUS within the C-DRX active time. The first mode, the second mode, or both modes may trigger a burst cycle level of PDCCH monitoring (e.g., whether the UE skips PDCCH monitoring for the entire quantized data burst cycle) . The third mode may trigger PDCCH monitoring within the data burst if the first mode, the second mode, or both modes have started the C-DRX active time.
[0126] Within the C-DRX active time, the power saving mechanism in some networks is a PDCCH monitoring adaptation, including PDCCH skipping and search space set group (SSSG) switching. Both PDCCH skipping and SSSG switching may be triggered by DCI. For PDCCH skipping, the DCI indicates a time duration for the UE to refrain from monitoring PDCCH if the network does not foresee an upcoming data scheduling within the time duration. For SSSG switching, the network can switch SSSG with sparser PDCCH monitoring occasions (PMOs) in the same situation. If the network wants the UE to communicate latency sensitive data, it may not indicate PDCCH skipping or may switch the UE’s active SSSG to another SSSG with denser PMOs.
[0127] Accordingly, in some aspects the third mode of LP-WUS monitoring within C-DRX active time may be beneficial. For example, the network may often configure a long C-DRX active time (e.g., a long cdrx-onDurationTimer and cdrx-InactivityTimer) for traffic with random arrival times and package sizes. As another example, the network may not configure a very aggressive PDCCH skipping with a long skipping duration and SSSG with very sparse PMOs so that it does not miss scheduling any unpredictable traffic. The power saving operations within the C-DRX active time may be compromised, which degrades the overall power saving performance (e.g., especially when other power saving techniques such as the first mode, the second mode, or both modes are enabled) . Accordingly, in some aspects the third mode may be beneficial, especially when the first mode, the second mode, or both modes are enabled. The incremental power savings gain achieved by the third mode due to reduced power consumption of the first mode, the second mode, or both modes is even larger.
[0128] In some wireless networks, the existing MAC-CE command may be used to terminate the C-DRX active time for both LP-WUS first mode, the second mode, or both modes and the UE may monitor for a LP-WUS when it is not within the C-DRX active time. However, this does not resolve the issues discussed above. For example, when the UE monitors the LP-WUS when it is not within the C-DRX active time may be ambiguous in some aspects. For example, after the C-DRX active time is terminated may be interpreted to mean that the UE may wait until before the next C-DRX on duration to monitor LP-WUS (e.g., according to the first mode) . This may introduce a long delay for data that could have been scheduled within the current C-DRX active time if it is not terminated early. As another example, after the C-DRX active time is terminated may be interpreted to mean that the UE starts to monitor the LP-WUS everywhere outside C-DRX active time. This is also problematic because of the increased false alarm of LP-WUS due to excessive LP-WUS detections and power loss for LP-WUS and PDCCH monitoring.
[0129] Accordingly, the first mode may be used as an example to explain why some wireless networks may not achieve LP-WUS monitoring in the C-DRX active time for further power savings. The same issue can be observed in second mode. In some aspects, the definition of the “C-DRX active time” (e.g., the PDCCH monitoring is not confined within the C-DRX active time) may not change. Accordingly, it is clear that the early termination of the C-DRX active time by MAC-CE may not always help (e.g., it is equivalent to PDCCH skipping with very long skipping duration) . To save UE power within the C-DRX active time, the UE is benefitted by keeping the C-DRX active time going and controlling the PDCCH monitoring by a LP-WUS. Additionally, the third mode of the LP-WUS monitoring within the C-DRX active time may be designed to overcome the limitations of PDCCH skipping and SSSG switching in a wireless network deployment.
[0130] For example, aspects of the techniques described herein may support LP-WUS monitoring within the C-DRX active time (e.g., the third mode of LP-WUS monitoring) . At 215, this may include the network entity 210 transmitting or otherwise outputting (and the UE 205 receiving or otherwise obtaining) first control signaling that triggers an active time of a DRX period (e.g., an active or ON duration or period of a C-DRX cycle) . In some aspects, the first control signaling may be a LP-WUS transmission that triggers or otherwise activates the active time of the DRX cycle (e.g., according to the first mode or the second mode of LP-WUS signaling) .
[0131] At 220, the network entity 210 may transmit or otherwise output (and the UE 205 may receive or otherwise obtain) second control signaling that configures, within the active time of the DRX period, wakeup signal monitoring occasion (s) (e.g., LP-WUS monitoring occasion (s) ) for reception of LP-WUS (s) . The UE 205 may monitor a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling.
[0132] Accordingly, in this aspect the network may configure or otherwise provide separate LP-WUS configurations for triggering the C-DRX active time (e.g., a first configuration for the first mode, the second mode, or both modes) and a second configuration for triggering PDCCH monitoring within the C-DRX active time (e.g., a second configuration for the third mode) . The UE 205 may monitor LP-WUS transmissions according to the first configuration outside of the C-DRX active time and monitor LP-WUS transmissions according to the second configuration within the C-DRX active time. For example, the network entity 210 may transmit or otherwise output (and the UE 205 may receive or otherwise obtain) this control signaling that configures, outside of the active time of the DRX period, one or more second wakeup signal monitoring occasions associated with triggering the active time. The network entity 210 may transmit or otherwise output (and the UE 205 may receive or otherwise obtain) a LP-WUS within a second wakeup signal monitoring occasion of the second wakeup signal monitoring occasion (s) outside of the active time. The UE 205 may monitor the wakeup signal monitoring occasion (s) within the active time based on reception of the LP-WUS outside of the active time.
[0133] In some aspects, the two configurations may have a different density or other parameter (s) (e.g., LP-WUS monitoring occasion periodicity) . For example, the second configuration may have denser LP-WUS monitoring occasions so that the PDCCH may be monitored in a finer time resolution. Accordingly, in some aspects the second control signaling may configure the one or more wakeup signal monitoring occasions with a first periodicity, a first duration, a first bandwidth, or any combination thereof, that is different than a second periodicity, a second duration, a second bandwidth, or any combination thereof of the one or more second wakeup signal monitoring occasions. In some aspects, the LP-WUS configuration may carry or otherwise convey bit (s) , field (s) , or other information that indicates which configuration this signal is used for. For example, the second control signaling may include a field that indicates that the one or more wakeup signal monitoring occasions configured by the second control signaling may be within the active time of the DRX period or outside of the active time of the DRX period.
[0134] In some aspects, the UE’s main radio wakeup time may need to be tighter for LP-WUS monitoring during the active time so that the UE can more quickly respond to receive network’s scheduling information. If the main radio wakeup time is very large, it may not be worthwhile to enable LP-WUS monitoring in the C-DRX active time (e.g., there may be limited opportunities for the UE to monitor LP-WUS in the C-DRX active time) . This may correspond to different UE implementation for the main radio sleep in or outside of the C-DRX active time (e.g., with a higher processing clock frequency in C-DRX active time) . That is, the UE’s main radio may stay between a no sleep state and a very deep sleep state within the active time. In some aspects, the minimum supported UE main radio wakeup time may be reported by the UE 205 in capability signaling.
[0135] Accordingly, aspects of the techniques described herein may support the UE separately reporting the minimum main radio wakeup time for LP-WUS monitoring within the active time (e.g., for the third mode) , outside of the active time (e.g., for the first mode, the second mode, or both modes) . For example, the UE 205 may transmit or otherwise output (and the network entity 210 may receive or otherwise obtain) an indication of a threshold delay for activating the main radio of the UE 205 after reception of a LP-WUS within the active time, outside of the active time, or both. In some aspects, the second control signaling may be based on the threshold delay. In some aspects, the wakeup time (e.g., the activation time) for the third mode may be different than the wakeup time for the first mode, for the second mode, or for both modes. Accordingly, the UE 205 may report the minimum main radio wakeup time (e.g., a second threshold delay) wakeup time to the network. That is, in some aspects the threshold delay (e.g., the activation time within the active time) may be different than a second threshold delay for activating the main radio after reception of a LP-WUS outside of the active time.
[0136] In some aspects, activating LP-WUS monitoring within the C-DRX active time may include dynamically enabling the LP-WUS monitoring after a LP-WUS is configured (e.g., via RRC signaling) . This may include the UE 205 first receiving the RRC configuration for the LP-WUS and then the network enabling or otherwise activating LP-WUS monitoring for the UE 205. The dynamic activation may be useful because the LP-WUS may not be designed to have a full cell coverage. When the UE 205 is away from the cell edge or not in deep shadowing, the LP-WUS monitoring can be turned off and UE 205 may monitor PDCCH when triggered by LP-WUS. For a basic design, the UE 205 operates one of the LP-WUR or the main radio at a time. Once the network activates LP-WUS monitoring for the UE 205, the UE 205 may monitor LP-UWS and stop PDCCH monitoring. This may include the LP-WUS activation signaling essentially acting as a PDCCH skipping indication. In this case, the network PDCCH skipping indication which is in a scheduling DCI format can be reused for the LP-WUS activation.
[0137] Accordingly, in some aspects for LP-WUS monitoring within the C-DRX active time, this may include reusing the PDCCH skipping indication mechanism to active LP-WUS monitoring. For example, the network entity 210 may transmit or otherwise output (and the UE 205 may receive or otherwise obtain) a DCI message that indicates a control channel skipping duration (e.g., a PDCCH skipping indication) for skipping monitoring of control channel monitoring occasion (s) (e.g., PDCCH monitoring occasion (s) ) within the active time. In this case, at least the wakeup signal monitoring occasion of the wakeup signal monitoring occasion (s) may be monitored based on being within the control channel skipping duration.
[0138] That is, at the start of the C-DRX active time (e.g., once configured) , the LP-WUS monitoring may be activated by default. The PDCCH skipping field in the DCI format may be used to activate LP-WUS monitoring (e.g., once the UE 205 receives this signaling) , where the UE 205 starts LP-WUS monitoring for a duration indicated by the PDCCH skipping field. The UE 205 may perform PDCCH monitoring either after a LP-WUS is detected or once the PDCCH skipping duration expires. For example, the UE 205 may monitor second control channel monitoring occasion (s) that are within the active time and outside of the control channel skipping duration.
[0139] This approach may address the limitation of PDCCH skipping discussed above. For example, the network can aggressively indicate a very long PDCCH skipping time and use the LP-WUS to trigger PDCCH monitoring before the PDCCH skipping time expires so that any unpredictable traffic can be promptly scheduled during PDCCH skipping time. However, this may include deactivating the LP-WUS monitoring, in some aspects. That is, aside from activation of the LP-WUS monitoring within C-DRX active time, deactivation of the LP-WUS monitoring may be addressed. When the UE 205 is in LP-WUR operations, deactivation of the LP-WUS monitoring may not be triggered by DCI or any other signaling that can only be processed by the main radio. Either the network can use a special LP-WUS to deactivate the LP-WUS monitoring for the UE 205 or the UE 205 may autonomously deactivate its own LP-WUS monitoring. The former approach may be an issue because if the channel quality is so bad that LP-WUS cannot be reliably detected, such a special LP-WUS for deactivating the LP-WUS monitoring may not be successfully received by UE LP-WUR either. The autonomous deactivation approach may work, to some degree. However, the UE 205 may still need to inform the network of this action so that network does not waste its energy on LP-WUS transmission if the UE 205 is not performing LP-WUS monitoring (and therefore does not receive a LP-WUS transmission) . The network may also send a confirmation of the deactivation (e.g., by a PDCCH skipping indication without PDCCH skipping, such as with a skipping time being set to zero) .
[0140] Accordingly, the techniques described herein provide additional optimizations. For example, when the UE 205 will perform LP-WUS monitoring if the PDCCH skipping time is considered too long such that scheduling of unpredictable data before the PDCCH skipping time expires is necessary to avoid additional scheduling delays. For example, one approach may be that when the UE 205 receives a PDCCH skipping indication, the UE 205 may monitor for the LP-WUS if the indicated PDCCH skipping time is above a threshold. That is, one approach may be that the wakeup signal monitoring occasion (s) within the active time may be monitored based on the control channel skipping duration (e.g., the PDCCH skipping duration time) satisfying a threshold duration.
[0141] In some aspects, the UE 205 may resume PDCCH monitoring after the PDCCH skipping time has expired even if the LP-WUS is not detected first. This may ensure that even if the UE 205 cannot detect a LP-WUS (e.g., due to channel degradation) , the UE 205 may not miss PDCCH monitoring forever. If the UE 205 stays in a good channel condition, there may be no need to have this protection. Accordingly, in some aspects the techniques described herein may define a special LP-WUS monitoring duration that corresponds to LP-WUS monitoring for the entire C-DRX active time. The UE 205 may skip PDCCH monitoring for the entire C-DRX active time unless it detects the LP-WUS. Accordingly, in this aspect a value of the control channel skipping duration may indicate for the UE 205 to monitor the wakeup signal monitoring occasion (s) for an entirety of the active time.
[0142] In some aspects, this may include extending the PDCCH skipping to a non-data scheduling DCI to provide for more flexible control. The LP-WUS monitoring activation signaling may be a non-data scheduling DCI in this example. That is, in some aspects the DCI message may be a non-data scheduling DCI message.
[0143] In some aspects, when LP-WUS is activated, the network may indicate a PDCCH skipping configuration with a long skipping time or a SSSG configuration with sparse PDCCH monitoring occasions. When the LP-WUS monitoring is configured, the UE 205 may consider a set of candidate PDCCH skipping durations that are generally larger than those used when LP-WUS monitoring is not configured. Additionally, or alternatively, when LP-WUS monitoring is configured, the UE 205 may consider SSSG (s) that have generally sparser PDCCH monitoring occasions than those used when LP-WUS monitoring is not configured. This approach may result in a semi-static association between LP-WUS configuration (s) and PDCCH configuration (s) (e.g., PDCCH skipping configuration (s) , SSSG switching configuration (s) , or both) .
[0144] Accordingly, aspects of the techniques described herein may include the network providing two sets of PDCCH configurations. One set may be associated with LP-WUS configuration (s) while the other set is not associated with LP-WUS configuration (s) . For example, the network entity 210 may transmit or otherwise output (and the UE 205 may receive or otherwise obtain) third control signaling that configures a first downlink control channel configuration associated with monitoring wakeup signals within the active time and a second downlink control channel configuration associated with not monitoring wakeup signals within the active time. In some aspects, the wakeup signal monitoring occasion (s) may be monitored within the active time according to the first downlink control channel configuration based at least in part on receiving the second control signaling that configures the one or more wakeup signal monitoring occasions within the active time. The first downlink control channel configuration may include a first set of candidate control channel skipping durations, a first set of candidate search space set groups, or both (e.g., a first configuration for PDCCH monitoring, such as a first PDCCH skipping configuration or a first SSSG switching configuration) that are different than a second set of candidate control channel skipping durations, a second set of candidate search space set groups, or both (e.g., a second configuration for PDCCH monitoring, such as a second PDCCH skipping configuration or a second SSSG switching configuration) included in the second downlink control channel configuration.
[0145] For example, when LP-WUS is configured (e.g., via a RRC message being provided) , the first PDCCH configuration may be used, and when LP-WUS is not configured or de-configured, the second PDCCH configuration may be used, or vice versa. The two PDCCH configurations may be different in PDCCH skipping configurations, SSSG switching configurations, or both. The candidate PDCCH skipping durations of the first PDCCH configuration may be larger than candidate PDCCH skipping durations of the second PDCCH configuration, or vice versa. The PDCCH monitoring occasions of the SSSG (s) for the first PDCCH configuration may be sparser than the PDCCH monitoring occasions s of the SSSG (s) for the second PDCCH configuration.
[0146] In some aspects, the described techniques may improve the robustness of PDCCH monitoring and LP-WUS monitoring for potential LP-WUS missed detection (s) (e.g., due to channel quality degradation) . To make PDCCH monitoring more robust when the UE 205 does not detect any LP-WUS before the first PDCCH monitoring occasion after the PDCCH skipping duration expires or before the next PDCCH monitoring occasion of the active SSSG, this may include the UE 205 monitoring compact (e.g., small size) DCI formats in those PDCCH monitoring occasions. That is, if channel quality degradation causes a missed detection of LP-WUS transmission (s) , it may be more robust if the UE 205 monitors the compact DCI formats. Accordingly, in some aspects if the UE 205 does not detect a LP-WUS, the UE 205 may monitor compact DCI formats in the PDCCH monitoring occasions when it performs PDCCH detection.
[0147] For example, the network entity 210 may transmit or otherwise output (and the UE 205 may monitor to receive or otherwise obtain) control channel monitoring occasion (s) exclusively for DCI messages of a set of formats based on failing to receive a LP-WUS within the wakeup signal monitoring occasion (s) . The control channel monitoring occasion (s) may be within the active time and after the wakeup signal monitoring occasion (s) . In some cases, the set of formats comprises a DCI format 0_0, a DCI format 1_0, or both, for uplink scheduling, downlink scheduling, or both. The PDCCH monitoring occasion (s) may be after the PDCCH skipping time expires or PDCCH monitoring occasion (s) that are in active SSSG. The compact DCI formats may include DCI format 0_0 and 1_0 for UL and DL data scheduling. The network may configure the DCI formats for UE 205 to monitor in this situation. For example, the network entity 210 may transmit or otherwise output (and the UE 205 may receive or otherwise obtain) third control signaling that configures or otherwise identifies the set of DCI formats. In some cases, the UE 205 may ignore other DCI formats even though they are configured in the PDCCH monitoring occasion (s) . In some aspects, if the PDCCH monitoring is triggered by a LP-WUS, the UE 205 may detect all configured DCI formats (e.g., including the compact DCI formats and other DCI formats) .
[0148] In some aspects, the techniques described herein may improve the robustness of LP-WUS detection in time varying channels. For example, if the UE 205 does not detect a LP-WUS but successfully detects a PDCCH in PDCCH monitoring occasion (s) after the PDCCH skipping duration expires or in the active SSSG, this may indicate that the UE 205 has missed a LP-WUS transmitted by network. In this case, the UE 205 may determine that it has exited the coverage of LP-WUS transmissions and it should deactivate LP-WUS monitoring. In some aspects, this technique may be applied when the robust PDCCH monitoring is performed for PDCCH skipping and SSSG switching (e.g., as discussed above) . For example, the UE 205 may fail to receive a LP-WUS within the wakeup signal monitoring occasion (s) . The UE 205 may detect a control message (e.g., PDCCH) within a control channel monitoring occasion that is within the active time and after the wakeup signal monitoring occasion. Accordingly, the UE 205 may transmit or otherwise output (and the network entity 210 may receive or otherwise obtain) an indication that wakeup signal monitoring within the active time is deactivated based on the LP-WUS not being received and the control message being detected within the active time.
[0149] For example, if the UE 205 does not detect a LP-WUS but it detects a PDCCH in a PDCCH monitoring occasion after PDCCH skipping duration expires or in a PDCCH monitoring occasion of the active SSSG, the UE 205 may deactivate LP-WUS monitoring. In some aspects, activation (e.g., reactivation) of the LP-WUS monitoring may be triggered by separate signaling from the network when the channel condition recovers. For example, the network entity 210 may transmit or otherwise output (and the UE 205 may receive or otherwise obtain) control signaling that reactivates wakeup signal monitoring within the active time based on transmitting the indication that wakeup signal monitoring within the active time is deactivated.
[0150] FIG. 3 shows an example of a LP-WUS configuration 300 that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure. Aspects of the LP-WUS configuration 300 may be implemented at or implemented by aspects of the wireless communications system 100 or the wireless communications system 200. For example, aspects of the LP-WUS configuration 300 may be implemented at or implemented by a UE or a network entity, which may be examples of the corresponding devices described herein.
[0151] As discussed above, the techniques described herein include LP-WUS transmission monitoring during a DRX active time where the LP-WUS transmissions are used to trigger PDCCH monitoring by the UE. For example, the UE may receive first control signaling that triggers an active time of the DRX period (e.g., the ON duration of a C-DRX cycle) . For example, the network entity may transmit a LP-WUS or a different signal outside of the active time that activates, triggers, or otherwise starts the active time of the DRX period. In some aspects, the first control signaling may configure a LP-WUS monitoring configuration (e.g., a first LP-WUS monitoring configuration) for the UE to monitor for LP-WUS transmissions outside of the active time. The first control signaling, in this example, may include RRC signaling, MAC-CE signaling, or a DCI message.
[0152] The UE may receive second control signaling that identifies or otherwise configures, within the active time, wakeup signal monitoring occasion (s) for reception of LP-WUS (s) . In some cases, the second control signaling may include LP-WUS transmissions within the active time of the DRX period. For example, the second control signaling in this example may correspond to a LP-WUS transmission that triggers the UE to monitor for PDCCH transmissions during a corresponding PDCCH monitoring occasion. In some aspects, the second control signaling may configure a LP-WUS monitoring configuration (e.g., a second LP-WUS monitoring configuration) for the UE to monitor for LP-WUS transmissions during the active time. The first LP-WUS monitoring configuration may be different than the second LP-WUS monitoring configuration (e.g., less dense LP-WUS monitoring occasions) .
[0153] Accordingly, in some aspects the network entity may transmit during (and the UE may monitor) wakeup signal monitoring occasion (s) (e.g., LP-WUS monitoring occasion (s) ) within or during the active time based on the second control signaling (e.g., according to the second LP-WUS monitoring configuration) . In some cases, this may include the UE receiving a LP-WUS during at least one of the LP-WUS monitoring occasions within the active time that triggers PDCCH monitoring by the UE. Accordingly, in this situation the network entity may transmit or otherwise output (and the UE may receive or otherwise obtain) a downlink message within a downlink message monitoring occasion (e.g., a PDCCH message, such as a DCI message, during a PDCCH monitoring occasion) that is within the active time and associated with the wakeup signal monitoring occasion. That is, the downlink message may be transmitted during the downlink monitoring occasion based on the LP-WUS being transmitted during the associated wakeup signal monitoring occasion.
[0154] As shown in FIG. 3, this may include the UE being configured (e.g., via RRC signaling or other signaling means) with a DRX period (e.g., a C-DRX cycle or period) that includes inactive (e.g., OFF) times and active (e.g., ON) times. The UE may transition to an inactive or power saving state during some or all of the inactive time. The UE may be configured with two LP-WUS monitoring configurations. The first LP-WUS monitoring configuration may include LP-WUS monitoring occasion (s) 305 that are configured outside of the active time (e.g., during the inactive time) while the second LP-WUS monitoring configuration may include LP-WUS monitoring occasion (s) 305 that are configured inside of the active time, or vice versa. The first LP-WUS monitoring configuration may be different from the second LP-WUS monitoring configuration (e.g., have a different periodicity or density of LP-WUS monitoring occasion (s) 305) . In some aspects, a LP-WUS monitoring occasion (s) 305 according to the first LP-WUS monitoring configuration may be used to trigger the active time. As shown, this may include a LP-WUS monitoring occasion (s) 305 occurring during the inactive period of the C-DRX period that triggers the active time of the C-DRX period (e.g., the first control signaling, in this example) .
[0155] Once the active time of the C-DRX period is activated or otherwise triggered, the UE may transition to performing LP-WUS monitoring during the active time according to the second LP-WUS configuration (e.g., with denser LP-WUS monitoring occasion (s) 305) . Each LP-WUS monitoring occasion (s) 305 configured according to the second LP-WUS monitoring configuration may be associated with a corresponding PDCCH monitoring occasion (s) 310. That is, rather than powering up the main radio of the UE during the active time, the UE may continue to use the LP-WUR to perform LP-WUS monitoring during the active time until a LP-WUS is received during at least one of the LP-WUS monitoring occasion (s) 305 that triggers PDCCH monitoring during the associated PDCCH monitoring occasion.
[0156] When the UE receives a LP-WUS during the at least one of the LP-WUS monitoring occasion (s) 305, the UE may power up the main radio of the UE to perform PDCCH monitoring during the PDCCH monitoring occasion (s) 310 that is associated with the LP-WUS monitoring occasion (s) 305 during which the LP-WUS was received. In some cases, the UE may continue to perform PDCCH monitoring during the remaining PDCCH monitoring occasion (s) 310 during the active time based on receiving the LP-WUS. When the active time ends, the UE may again transition to performing LP-WUS monitoring during the next inactive period according to the first LP-WUS monitoring configuration.
[0157] FIG. 4 shows an example of a LP-WUS configuration 400 that supports wakeup signal monitoring within discontinuous reception active times in accordance with one or more aspects of the present disclosure. Aspects of the LP-WUS configuration 400 may be implemented at or implemented by aspects of the wireless communications system 100 or the wireless communications system 200 or aspects of the LP-WUS configuration 300. For example, aspects of the LP-WUS configuration 400 may be implemented at or implemented by a UE or a network entity, which may be examples of the corresponding devices described herein.
[0158] As discussed above, the techniques described herein include LP-WUS transmission monitoring during a DRX active time where the LP-WUS transmissions are used to trigger PDCCH monitoring by the UE. For example, the UE may receive first control signaling that triggers an active time of the DRX period (e.g., the ON duration of a C-DRX cycle) . For example, the network entity may transmit a LP-WUS or a different signal outside of the active time that activates, triggers, or otherwise starts the active time of the DRX period. In some aspects, the first control signaling may configure a LP-WUS monitoring configuration (e.g., a first LP-WUS monitoring configuration) for the UE to monitor for LP-WUS transmissions outside of the active time. The first control signaling, in this example, may include RRC signaling, MAC-CE signaling, or a DCI message.
[0159] The UE may receive second control signaling that identifies or otherwise configures, within the active time, wakeup signal monitoring occasion (s) for reception of LP-WUS (s) . In some cases, the second control signaling may include LP-WUS transmissions within the active time of the DRX period. For example, the second control signaling in this example may correspond to a LP-WUS transmission that triggers the UE to monitor for PDCCH transmissions during a corresponding PDCCH monitoring occasion. In some aspects, the second control signaling may configure a LP-WUS monitoring configuration (e.g., a second LP-WUS monitoring configuration) for the UE to monitor for LP-WUS transmissions during the active time. The first LP-WUS monitoring configuration may be different than the second LP-WUS monitoring configuration (e.g., less dense LP-WUS monitoring occasions) .
[0160] Accordingly, in some aspects the network entity may transmit during (and the UE may monitor) LP-WUS monitoring occasion (s) 405 within or during the active time based on the second control signaling (e.g., according to the second LP-WUS monitoring configuration) . In some cases, this may include the UE receiving a LP-WUS during at least one of the LP-WUS monitoring occasion (s) 405 within the active time that triggers PDCCH monitoring by the UE. Accordingly, in this situation the network entity may transmit or otherwise output (and the UE may receive or otherwise obtain) a downlink message within a downlink message monitoring occasion (e.g., a PDCCH message, such as a DCI message, during a PDCCH monitoring occasion) that is within the active time and associated with the wakeup signal monitoring occasion. That is, the downlink message may be transmitted during the downlink monitoring occasion based on the LP-WUS being transmitted during the associated wakeup signal monitoring occasion.
[0161] As shown in FIG. 4, this may include support for LP-WUS monitoring and SSSG switching operations. The LP-WUS monitoring configuration may be used to address the limitation for SSSG switching where the network may not want to activate a SSSG with very sparse PDCCH monitoring occasions. With regards to SSSG switching in the LP-WUS monitoring context, this may be based on whether the SSSG is used for PDCCH monitoring after the LP-WUS is detected (which may have denser PDCCH monitoring occasions for quicker scheduling) or the SSSG is used for robust PDCCH monitoring when the UE does not detect a LP-WUS (which may be with sparse PDCCH monitoring occasions) . In some aspects, this may include using different SSSGs. For example, in some aspects a SSSG switching may be triggered by the detection of a LP-WUS. In the PDCCH skipping scenario, the PDCCH skipping indication itself may achieve a similar effect of the sparse SSSG (e.g., the PDCCH monitoring after the LP-WUS is detected may achieve similar effect of the dense SSSG) .
[0162] Accordingly, as shown in FIG. 4 this may include, for LP-WUS monitoring within the C-DRX active time, the LP-WUS monitoring may be activated when the network indicates to the UE to switch to a certain SSSG. For example, the network may configure one or multiple SSSGs that activate LP-WUS monitoring. A default SSSG at the start of the C-DRX active time may be considered one of those SSSGs. For example, the SSSGs may have relatively sparser PDCCH monitoring occasions for more robust PDCCH monitoring. For example, the network entity may transmit or otherwise output (and the UE may receive or otherwise obtain) third control signaling that configures SSSGs that are associated with monitoring wakeup signals within the active time. In some aspects, each SSSG may include a respective set of control channel monitoring occasions within the active time. The network entity may transmit or otherwise output (and the UE may receive or otherwise obtain) fourth control signaling that indicates for the UE to monitor a SSSG of the SSSGs associated with monitoring wakeup signals within the active time. In some aspects, at least the wakeup signal monitoring occasion within the active time may be monitored based on the UE being indicated to monitor the SSSG of the SSSGs.
[0163] For example, this may include the UE monitoring LP-WUS monitoring occasion (s) 405 according to the LP-WUS configuration configured for the active time. The different SSSG (s) configured for the UE may be associated with respective PDCCH monitoring occasions. For example, the one or more SSSGs may include a first SSSG that is associated with a first SSSG PDCCH monitoring occasion (s) 410 and a second SSSG that is associated with a second SSSG PDCCH monitoring occasion (s) 415. The UE may perform LP-WUS monitoring during the LP-WUS monitoring occasion (s) 405 and perform PDCCH monitoring during the first SSSG PDCCH monitoring occasion (s) 410 according to the UE’s configuration. As shown, the UE may not detect or otherwise receive any LP-WUS transmission during the first three instances of the LP-WUS monitoring occasion (s) 405. The UE may monitor for a PDCCH (e.g., DCI message during the first SSSG PDCCH monitoring occasion (s) 410 associated with the first SSSG but may not detect any DCI messages. However, the UE may detect a LP-WUS transmission during the fifth LP-WUS of the LP-WUS monitoring occasion (s) 405 that is used to trigger the UE to switch from the first SSSG to the second SSSG. Accordingly, after detecting the LP-WUS, the UE may switch to the second SSSG (e.g., with denser PDCCH monitoring occasions) and monitor for PDCCH messages during the second SSSG PDCCH monitoring occasion (s) 415. That is, in some aspects the one or more SSSGs associated with monitoring wakeup signals within the active time may include fewer control channel monitoring occasions within the active time than a SSSG that is excluded from the one or more SSSGs.
[0164] In some aspects, the UE may perform PDCCH monitoring either after LP-WUS is detected, or during PDCCH monitoring occasions of the active SSSG if LP-WUS is not detected. If UE detects the LP-WUS, it may switch to another SSSG where this SSSG has relatively denser PDCCH monitoring occasions for quick data scheduling. For example, the network entity may transmit or otherwise output (and the UE may receive or otherwise obtain) a LP-WUS based on monitoring the wakeup signal monitoring occasion within the active time and switch, within the active time and in response to receiving the LP-WUS, to monitor a SSSG excluded from the one or more SSSGs associated with monitoring wakeup signals within the active time.
[0165] In some aspects, this may include an optimization that avoids UE PDCCH monitoring for SSSG at the beginning of the C-DRX active time. For example, the UE may skip the first N PDCCH monitoring occasions of the active SSSG at the beginning of the C-DRX active time. In some aspects, the value of N may be configured by the network or selected and indicated to the network by the UE. For example, the UE may communicate a quantity of temporally first control channel monitoring occasions that are within the active time and of the SSSG and skip monitoring of up to the quantity of temporally first control channel monitoring occasions within the active time based at least in part on the quantity being communicated.
[0166] FIG. 5 shows a block diagram 500 of a device 505 that supports wakeup signal monitoring within DRX active times 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 (e.g., operatively, communicatively, functionally, electronically, or electrically) 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) .
[0167] 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 wakeup signal monitoring within DRX active times) . 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.
[0168] 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 wakeup signal monitoring within DRX active times) . 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.
[0169] 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 wakeup signal monitoring within DRX active times 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.
[0170] 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) .
[0171] 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) 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) .
[0172] 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.
[0173] 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 control signaling that triggers an active time of a DRX period. The communications manager 520 is capable of, configured to, or operable to support a means for receiving second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs. The communications manager 520 is capable of, configured to, or operable to support a means for monitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling.
[0174] 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 improved UE power saving operations and scheduling during C-DRX operations. This may include the UE being configured with two (or more) LP-WUS configurations where a first LP-WUS configuration schedules less dense LP-WUS monitoring occasions outside of the active time of the C-DRX period while the second LP-WUS configuration schedules denser LP-WUS monitoring occasions inside of the active time.
[0175] FIG. 6 shows a block diagram 600 of a device 605 that supports wakeup signal monitoring within DRX active times 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 of 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 (e.g., operatively, communicatively, functionally, electronically, or electrically) 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) .
[0176] 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 wakeup signal monitoring within DRX active times) . 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.
[0177] 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 wakeup signal monitoring within DRX active times) . 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.
[0178] The device 605, or various components thereof, may be an example of means for performing various aspects of wakeup signal monitoring within DRX active times as described herein. For example, the communications manager 620 may include an active time manager 625, a configuration manager 630, a monitoring manager 635, 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.
[0179] The communications manager 620 may support wireless communications in accordance with examples as disclosed herein. The active time manager 625 is capable of, configured to, or operable to support a means for receiving first control signaling that triggers an active time of a DRX period. The configuration manager 630 is capable of, configured to, or operable to support a means for receiving second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs. The monitoring manager 635 is capable of, configured to, or operable to support a means for monitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling.
[0180] FIG. 7 shows a block diagram 700 of a communications manager 720 that supports wakeup signal monitoring within DRX active times 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 wakeup signal monitoring within DRX active times as described herein. For example, the communications manager 720 may include an active time manager 725, a configuration manager 730, a monitoring manager 735, an activation manager 740, a threshold delay manager 745, a skipping manager 750, an SSSG manager 755, a DCI manager 760, 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) .
[0181] The communications manager 720 may support wireless communications in accordance with examples as disclosed herein. The active time manager 725 is capable of, configured to, or operable to support a means for receiving first control signaling that triggers an active time of a DRX period. The configuration manager 730 is capable of, configured to, or operable to support a means for receiving second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs. The monitoring manager 735 is capable of, configured to, or operable to support a means for monitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling.
[0182] In some examples, the activation manager 740 is capable of, configured to, or operable to support a means for receiving third control signaling that configures, outside of the active time of the DRX period, one or more second wakeup signal monitoring occasions associated with triggering the active time. In some examples, the activation manager 740 is capable of, configured to, or operable to support a means for receiving a LP-WUS within a second wakeup signal monitoring occasion of the one or more second wakeup signal monitoring occasions outside of the active time, where the wakeup signal monitoring occasion within the active time and is monitored based on reception of the LP-WUS outside of the active time.
[0183] In some examples, the second control signaling configures the one or more wakeup signal monitoring occasions with a first periodicity, a first duration, a first bandwidth, or any combination thereof that is different than a second periodicity, a second duration, a second bandwidth, or any combination thereof of the one or more second wakeup signal monitoring occasions. In some examples, the second control signaling includes a field that indicates that the one or more wakeup signal monitoring occasions configured by the second control signaling are within the active time of the DRX period.
[0184] In some examples, the threshold delay manager 745 is capable of, configured to, or operable to support a means for transmitting an indication of a threshold delay for activating a main radio of the UE after reception of a LP-WUS within the active time, where the second control signaling is based on the threshold delay. In some examples, the threshold delay is different than a second threshold delay for activating the main radio after reception of a LP-WUS outside of the active time.
[0185] In some examples, the skipping manager 750 is capable of, configured to, or operable to support a means for receiving a DCI message that indicates a control channel skipping duration for skipping monitoring of one or more control channel monitoring occasions within the active time, where at least the wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions is monitored based on being within the control channel skipping duration. In some examples, the one or more wakeup signal monitoring occasions within the active time are monitored based on the control channel skipping duration satisfying a threshold duration. In some examples, a value of the control channel skipping duration indicates to monitor the one or more wakeup signal monitoring occasions for an entirety of the active time. In some examples, the DCI message is a non-data scheduling DCI message.
[0186] In some examples, the DCI manager 760 is capable of, configured to, or operable to support a means for monitoring one or more second control channel monitoring occasions that are within the active time and outside of the control channel skipping duration.
[0187] In some examples, the SSSG manager 755 is capable of, configured to, or operable to support a means for receiving third control signaling that configures one or more SSSGs that are associated with monitoring wakeup signals within the active time, where each SSSG includes a respective set of control channel monitoring occasions within the active time. In some examples, the SSSG manager 755 is capable of, configured to, or operable to support a means for receiving fourth control signaling that indicates for the UE to monitor a SSSG of the one or more SSSGs associated with monitoring wakeup signals within the active time, where at least the wakeup signal monitoring occasion within the active time is monitored based on the UE being indicated to monitor the SSSG of the one or more SSSGs.
[0188] In some examples, the SSSG manager 755 is capable of, configured to, or operable to support a means for receiving a LP-WUS based on monitoring the wakeup signal monitoring occasion within the active time. In some examples, the SSSG manager 755 is capable of, configured to, or operable to support a means for switching, within the active time and in response to receiving the LP-WUS, to monitor a second SSSG excluded from the one or more SSSGs associated with monitoring wakeup signals within the active time.
[0189] In some examples, the SSSG manager 755 is capable of, configured to, or operable to support a means for communicating a quantity of temporally first control channel monitoring occasions that are within the active time and of the SSSG. In some examples, the SSSG manager 755 is capable of, configured to, or operable to support a means for skipping monitoring of up to the quantity of temporally first control channel monitoring occasions within the active time based on the quantity being communicated. In some examples, the one or more SSSGs associated with monitoring wakeup signals within the active time include fewer control channel monitoring occasions within the active time than a SSSG that is excluded from the one or more SSSGs.
[0190] In some examples, the DCI manager 760 is capable of, configured to, or operable to support a means for receiving third control signaling that configures a first downlink control channel configuration associated with monitoring wakeup signals within the active time and a second downlink control channel configuration associated with not monitoring wakeup signals within the active time, where the wakeup signal monitoring occasion is monitored within the active time according to the first downlink control channel configuration based on receiving the second control signaling that configures the one or more wakeup signal monitoring occasions within the active time. In some examples, the first downlink control channel configuration includes a first set of candidate control channel skipping durations, a first set of candidate SSSGs, or both that are different than a second set of candidate control channel skipping durations, a second set of candidate SSSGs, or both included in the second downlink control channel configuration.
[0191] In some examples, the DCI manager 760 is capable of, configured to, or operable to support a means for monitoring one or more control channel monitoring occasions exclusively for DCI messages of a set of formats based on failing to receive a LP-WUS within the one or more wakeup signal monitoring occasions, where the one or more control channel monitoring occasions are within the active time and after the wakeup signal monitoring occasion. In some examples, the DCI manager 760 is capable of, configured to, or operable to support a means for receiving third control signaling that configures the set of formats. In some examples, the set of formats includes a DCI format 0_0, a DCI format 1_0, or both, for uplink scheduling, downlink scheduling, or both.
[0192] In some examples, the activation manager 740 is capable of, configured to, or operable to support a means for failing to receive a LP-WUS within the one or more wakeup signal monitoring occasions. In some examples, the activation manager 740 is capable of, configured to, or operable to support a means for detecting a control message within a control channel monitoring occasion that is within the active time and after the wakeup signal monitoring occasion. In some examples, the activation manager 740 is capable of, configured to, or operable to support a means for transmitting an indication that wakeup signal monitoring within the active time is deactivated based on the LP-WUS not being received and the control message being detected within the active time. In some examples, the activation manager 740 is capable of, configured to, or operable to support a means for receiving control signaling that reactivates wakeup signal monitoring within the active time based on transmitting the indication that wakeup signal monitoring within the active time is deactivated.
[0193] FIG. 8 shows a diagram of a system 800 including a device 805 that supports wakeup signal monitoring within DRX active times 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) .
[0194] 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.
[0195] 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.
[0196] 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.
[0197] 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 (e.g., directly, indirectly, after pre-processing, without pre-processing) 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 wakeup signal monitoring within DRX active times) . 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.
[0198] 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.
[0199] 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 control signaling that triggers an active time of a DRX period. The communications manager 820 is capable of, configured to, or operable to support a means for receiving second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs. The communications manager 820 is capable of, configured to, or operable to support a means for monitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling.
[0200] By including or configuring the communications manager 820 in accordance with examples as described herein, the device 805 may support techniques for improved UE power saving operations and scheduling during C-DRX operations. This may include the UE being configured with two (or more) LP-WUS configurations where a first LP-WUS configuration schedules less dense LP-WUS monitoring occasions outside of the active time of the C-DRX period while the second LP-WUS configuration schedules denser LP-WUS monitoring occasions inside of the active time.
[0201] 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 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 wakeup signal monitoring within DRX active times 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.
[0202] FIG. 9 shows a block diagram 900 of a device 905 that supports wakeup signal monitoring within DRX active times in accordance with one or more aspects of the present disclosure. The device 905 may be an example of aspects of a network entity 105 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communications manager 920. The device 905, or one or more components of the device 905 (e.g., the receiver 910, the transmitter 915, the communications manager 920) , may include at least one processor, which may be coupled (e.g., operatively, communicatively, functionally, electronically, or electrically) 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) .
[0203] The receiver 910 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . Information may be passed on to other components of the device 905. In some examples, the receiver 910 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 910 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.
[0204] The transmitter 915 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 905. For example, the transmitter 915 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . In some examples, the transmitter 915 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 915 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 915 and the receiver 910 may be co-located in a transceiver, which may include or be coupled with a modem.
[0205] The communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be examples of means for performing various aspects of wakeup signal monitoring within DRX active times as described herein. For example, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be capable of performing one or more of the functions described herein.
[0206] In some examples, the communications manager 920, the receiver 910, the transmitter 915, 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 DSP, a CPU, an ASIC, an 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) .
[0207] Additionally, or alternatively, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in code (e.g., as communications management software) 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 920, the receiver 910, the transmitter 915, 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) .
[0208] In some examples, the communications manager 920 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 910, the transmitter 915, or both. For example, the communications manager 920 may receive information from the receiver 910, send information to the transmitter 915, or be integrated in combination with the receiver 910, the transmitter 915, or both to obtain information, output information, or perform various other operations as described herein.
[0209] The communications manager 920 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 920 is capable of, configured to, or operable to support a means for transmitting first control signaling that triggers an active time of a DRX period. The communications manager 920 is capable of, configured to, or operable to support a means for transmitting second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals. The communications manager 920 is capable of, configured to, or operable to support a means for transmitting a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time. The communications manager 920 is capable of, configured to, or operable to support a means for transmitting, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.
[0210] By including or configuring the communications manager 920 in accordance with examples as described herein, the device 905 (e.g., at least one processor controlling or otherwise coupled with the receiver 910, the transmitter 915, the communications manager 920, or a combination thereof) may support techniques for improved UE power saving operations and scheduling during C-DRX operations. This may include the UE being configured with two (or more) LP-WUS configurations where a first LP-WUS configuration schedules less dense LP-WUS monitoring occasions outside of the active time of the C-DRX period while the second LP-WUS configuration schedules denser LP-WUS monitoring occasions inside of the active time.
[0211] FIG. 10 shows a block diagram 1000 of a device 1005 that supports wakeup signal monitoring within DRX active times in accordance with one or more aspects of the present disclosure. The device 1005 may be an example of aspects of a device 905 or a network entity 105 as described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communications manager 1020. The device 1005, or one of more components of the device 1005 (e.g., the receiver 1010, the transmitter 1015, the communications manager 1020) , may include at least one processor, which may be coupled (e.g., operatively, communicatively, functionally, electronically, or electrically) 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) .
[0212] The receiver 1010 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . Information may be passed on to other components of the device 1005. In some examples, the receiver 1010 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 1010 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.
[0213] The transmitter 1015 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1005. For example, the transmitter 1015 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . In some examples, the transmitter 1015 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1015 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1015 and the receiver 1010 may be co-located in a transceiver, which may include or be coupled with a modem.
[0214] The device 1005, or various components thereof, may be an example of means for performing various aspects of wakeup signal monitoring within DRX active times as described herein. For example, the communications manager 1020 may include an active time manager 1025, a configuration manager 1030, an LP-WUS manager 1035, a downlink manager 1040, or any combination thereof. The communications manager 1020 may be an example of aspects of a communications manager 920 as described herein. In some examples, the communications manager 1020, 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 1010, the transmitter 1015, or both. For example, the communications manager 1020 may receive information from the receiver 1010, send information to the transmitter 1015, or be integrated in combination with the receiver 1010, the transmitter 1015, or both to obtain information, output information, or perform various other operations as described herein.
[0215] The communications manager 1020 may support wireless communications in accordance with examples as disclosed herein. The active time manager 1025 is capable of, configured to, or operable to support a means for transmitting first control signaling that triggers an active time of a DRX period. The configuration manager 1030 is capable of, configured to, or operable to support a means for transmitting second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals. The LP-WUS manager 1035 is capable of, configured to, or operable to support a means for transmitting a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time. The downlink manager 1040 is capable of, configured to, or operable to support a means for transmitting, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.
[0216] FIG. 11 shows a block diagram 1100 of a communications manager 1120 that supports wakeup signal monitoring within DRX active times in accordance with one or more aspects of the present disclosure. The communications manager 1120 may be an example of aspects of a communications manager 920, a communications manager 1020, or both, as described herein. The communications manager 1120, or various components thereof, may be an example of means for performing various aspects of wakeup signal monitoring within DRX active times as described herein. For example, the communications manager 1120 may include an active time manager 1125, a configuration manager 1130, an LP-WUS manager 1135, a downlink manager 1140, an activation manager 1145, a threshold delay manager 1150, a skipping manager 1155, an SSSG manager 1160, a DCI manager 1165, 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 may include communications within a protocol layer of a protocol stack, communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualized component associated with a network entity 105, between devices, components, or virtualized components associated with a network entity 105) , or any combination thereof.
[0217] The communications manager 1120 may support wireless communications in accordance with examples as disclosed herein. The active time manager 1125 is capable of, configured to, or operable to support a means for transmitting first control signaling that triggers an active time of a DRX period. The configuration manager 1130 is capable of, configured to, or operable to support a means for transmitting second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals. The LP-WUS manager 1135 is capable of, configured to, or operable to support a means for transmitting a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time. The downlink manager 1140 is capable of, configured to, or operable to support a means for transmitting, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.
[0218] In some examples, the activation manager 1145 is capable of, configured to, or operable to support a means for transmitting third control signaling that configures, outside of the active time of the DRX period, one or more second wakeup signal monitoring occasions associated with triggering the active time. In some examples, the activation manager 1145 is capable of, configured to, or operable to support a means for transmitting a second LP-WUS within a second wakeup signal monitoring occasion of the one or more second wakeup signal monitoring occasions outside of the active time, where the wakeup signal monitoring occasion is within the active time and is transmitted based on transmission of the LP-WUS outside of the active time.
[0219] In some examples, the second control signaling configures the one or more wakeup signal monitoring occasions with a first periodicity, a first duration, a first bandwidth, or any combination thereof that is different than a second periodicity, a second duration, a second bandwidth, or any combination thereof of the one or more second wakeup signal monitoring occasions. In some examples, the second control signaling includes a field that indicates that the one or more wakeup signal monitoring occasions configured by the second control signaling are within the active time of the DRX period.
[0220] In some examples, the threshold delay manager 1150 is capable of, configured to, or operable to support a means for receiving an indication of a threshold delay for activation of a main radio of a UE within the active time, where the second control signaling is based on the threshold delay. In some examples, the threshold delay is different than a second threshold delay for activating the main radio of the UE outside of the active time.
[0221] In some examples, the skipping manager 1155 is capable of, configured to, or operable to support a means for transmitting a DCI message that indicates a control channel skipping duration for skipping monitoring of one or more control channel monitoring occasions within the active time, where at least the wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions is monitored based on being within the control channel skipping duration. In some examples, the one or more wakeup signal monitoring occasions within the active time are monitored based on the control channel skipping duration satisfying a threshold duration. In some examples, a value of the control channel skipping duration indicates to monitor the one or more wakeup signal monitoring occasions for an entirety of the active time. In some examples, the DCI message is a non-data scheduling DCI message.
[0222] In some examples, the skipping manager 1155 is capable of, configured to, or operable to support a means for transmitting a second DCI message in one or more second control channel monitoring occasions that are within the active time and outside of the control channel skipping duration.
[0223] In some examples, the SSSG manager 1160 is capable of, configured to, or operable to support a means for transmitting third control signaling that configures one or more SSSGs that are associated with monitoring wakeup signals within the active time, where each SSSG includes a respective set of control channel monitoring occasions within the active time. In some examples, the SSSG manager 1160 is capable of, configured to, or operable to support a means for transmitting fourth control signaling that indicates for a UE to monitor a SSSG of the one or more SSSGs associated with monitoring wakeup signals within the active time, where at least the LP-WUS is transmitted within the active time based on the fourth control signaling being transmitted.
[0224] In some examples, the SSSG manager 1160 is capable of, configured to, or operable to support a means for communicating, with the UE, a quantity of temporally first control channel monitoring occasions that are within the active time and of the SSSG. In some examples, the one or more SSSGs associated with monitoring wakeup signals within the active time include fewer control channel monitoring occasions within the active time than a SSSG that is excluded from the one or more SSSGs.
[0225] In some examples, the DCI manager 1165 is capable of, configured to, or operable to support a means for transmitting third control signaling that configures a first downlink control channel configuration associated with monitoring wakeup signals within the active time and a second downlink control channel configuration associated with not monitoring wakeup signals within the active time, where the LP-WUS is transmitted within the active time according to the first downlink control channel configuration based on transmitting the second control signaling that configures the one or more wakeup signal monitoring occasions within the active time. In some examples, the first downlink control channel configuration includes a first set of candidate control channel skipping durations, a first set of candidate SSSGs, or both that are different than a second set of candidate control channel skipping durations, a second set of candidate SSSGs, or both included in the second downlink control channel configuration.
[0226] In some examples, the DCI manager 1165 is capable of, configured to, or operable to support a means for transmitting DCI messages of a set of formats during one or more control channel monitoring occasions within the active time, where the one or more control channel monitoring occasions are within the active time and after the wakeup signal monitoring occasion. In some examples, the DCI manager 1165 is capable of, configured to, or operable to support a means for transmitting third control signaling that configures the set of formats at a UE. In some examples, the set of formats includes a DCI format 0_0, a DCI format 1_0, or both, for uplink scheduling, downlink scheduling, or both.
[0227] In some examples, the activation manager 1145 is capable of, configured to, or operable to support a means for receiving, from a UE, an indication that wakeup signal monitoring within the active time is deactivated for the UE. In some examples, the activation manager 1145 is capable of, configured to, or operable to support a means for transmitting control signaling that reactivates wakeup signal monitoring within the active time for the UE based on determining that a channel condition associated with the UE satisfies a threshold channel condition.
[0228] FIG. 12 shows a diagram of a system 1200 including a device 1205 that supports wakeup signal monitoring within DRX active times in accordance with one or more aspects of the present disclosure. The device 1205 may be an example of or include components of a device 905, a device 1005, or a network entity 105 as described herein. The device 1205 may communicate with other network devices or network equipment such as one or more of the network entities 105, UEs 115, or any combination thereof. The communications may include communications over one or more wired interfaces, over one or more wireless interfaces, or any combination thereof. The device 1205 may include components that support outputting and obtaining communications, such as a communications manager 1220, a transceiver 1210, one or more antennas 1215, at least one memory 1225, code 1230, and at least one processor 1235. 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 1240) .
[0229] The transceiver 1210 may support bi-directional communications via wired links, wireless links, or both as described herein. In some examples, the transceiver 1210 may include a wired transceiver and may communicate bi-directionally with another wired transceiver. Additionally, or alternatively, in some examples, the transceiver 1210 may include a wireless transceiver and may communicate bi-directionally with another wireless transceiver. In some examples, the device 1205 may include one or more antennas 1215, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently) . The transceiver 1210 may also include a modem to modulate signals, to provide the modulated signals for transmission (e.g., by one or more antennas 1215, by a wired transmitter) , to receive modulated signals (e.g., from one or more antennas 1215, from a wired receiver) , and to demodulate signals. In some implementations, the transceiver 1210 may include one or more interfaces, such as one or more interfaces coupled with the one or more antennas 1215 that are configured to support various receiving or obtaining operations, or one or more interfaces coupled with the one or more antennas 1215 that are configured to support various transmitting or outputting operations, or a combination thereof. In some implementations, the transceiver 1210 may include or be configured for coupling with one or more processors or one or more memory components that are operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other outputting, or any combination thereof. In some implementations, the transceiver 1210, or the transceiver 1210 and the one or more antennas 1215, or the transceiver 1210 and the one or more antennas 1215 and one or more processors or one or more memory components (e.g., the at least one processor 1235, the at least one memory 1225, or both) , may be included in a chip or chip assembly that is installed in the device 1205. In some examples, the transceiver 1210 may be operable to support communications via one or more communications links (e.g., communication link (s) 125, backhaul communication link (s) 120, a midhaul communication link 162, a fronthaul communication link 168) .
[0230] The at least one memory 1225 may include RAM, ROM, or any combination thereof. The at least one memory 1225 may store computer-readable, computer-executable, or processor-executable code, such as the code 1230. The code 1230 may include instructions that, when executed by one or more of the at least one processor 1235, cause the device 1205 to perform various functions described herein. The code 1230 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1230 may not be directly executable by a processor of the at least one processor 1235 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1225 may include, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices. In some examples, the at least one processor 1235 may include multiple processors and the at least one memory 1225 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 herein (for example, as part of a processing system) .
[0231] The at least one processor 1235 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 GPUs, one or more NPUs (also referred to as neural network processors or 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 1235 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into one or more of the at least one processor 1235. The at least one processor 1235 may be configured to execute computer-readable instructions (e.g., directly, indirectly, after pre-processing, without pre-processing) stored in a memory (e.g., one or more of the at least one memory 1225) to cause the device 1205 to perform various functions (e.g., functions or tasks supporting wakeup signal monitoring within DRX active times) . For example, the device 1205 or a component of the device 1205 may include at least one processor 1235 and at least one memory 1225 coupled with one or more of the at least one processor 1235, the at least one processor 1235 and the at least one memory 1225 configured to perform various functions described herein. The at least one processor 1235 may be an example of a cloud-computing platform (e.g., one or more physical nodes and supporting software such as operating systems, virtual machines, or container instances) that may host the functions (e.g., by executing code 1230) to perform the functions of the device 1205. The at least one processor 1235 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1205 (such as within one or more of the at least one memory 1225) .
[0232] In some examples, the at least one processor 1235 may include multiple processors and the at least one memory 1225 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 herein. In some examples, the at least one processor 1235 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 1235) and memory circuitry (which may include the at least one memory 1225) ) , 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 1235 or a processing system including the at least one processor 1235 may be configured to, configurable to, or operable to cause the device 1205 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 stored in the at least one memory 1225 or otherwise, to perform one or more of the functions described herein.
[0233] In some examples, a bus 1240 may support communications of (e.g., within) a protocol layer of a protocol stack. In some examples, a bus 1240 may support communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack) , which may include communications performed within a component of the device 1205, or between different components of the device 1205 that may be co-located or located in different locations (e.g., where the device 1205 may refer to a system in which one or more of the communications manager 1220, the transceiver 1210, the at least one memory 1225, the code 1230, and the at least one processor 1235 may be located in one of the different components or divided between different components) .
[0234] In some examples, the communications manager 1220 may manage aspects of communications with a core network 130 (e.g., via one or more wired or wireless backhaul links) . For example, the communications manager 1220 may manage the transfer of data communications for client devices, such as one or more UEs 115. In some examples, the communications manager 1220 may manage communications with one or more other network entities 105, and may include a controller or scheduler for controlling communications with UEs 115 (e.g., in cooperation with the one or more other network devices) . In some examples, the communications manager 1220 may support an X2 interface within an LTE / LTE-A wireless communications network technology to provide communication between network entities 105.
[0235] The communications manager 1220 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 1220 is capable of, configured to, or operable to support a means for transmitting first control signaling that triggers an active time of a DRX period. The communications manager 1220 is capable of, configured to, or operable to support a means for transmitting second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals. The communications manager 1220 is capable of, configured to, or operable to support a means for transmitting a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time. The communications manager 1220 is capable of, configured to, or operable to support a means for transmitting, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.
[0236] By including or configuring the communications manager 1220 in accordance with examples as described herein, the device 1205 may support techniques for improved UE power saving operations and scheduling during C-DRX operations. This may include the UE being configured with two (or more) LP-WUS configurations where a first LP-WUS configuration schedules less dense LP-WUS monitoring occasions outside of the active time of the C-DRX period while the second LP-WUS configuration schedules denser LP-WUS monitoring occasions inside of the active time.
[0237] In some examples, the communications manager 1220 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the transceiver 1210, the one or more antennas 1215 (e.g., where applicable) , or any combination thereof. Although the communications manager 1220 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1220 may be supported by or performed by the transceiver 1210, one or more of the at least one processor 1235, one or more of the at least one memory 1225, the code 1230, or any combination thereof (for example, by a processing system including at least a portion of the at least one processor 1235, the at least one memory 1225, the code 1230, or any combination thereof) . For example, the code 1230 may include instructions executable by one or more of the at least one processor 1235 to cause the device 1205 to perform various aspects of wakeup signal monitoring within DRX active times as described herein, or the at least one processor 1235 and the at least one memory 1225 may be otherwise configured to, individually or collectively, perform or support such operations.
[0238] FIG. 13 shows a flowchart illustrating a method 1300 that supports wakeup signal monitoring within DRX active times in accordance with one or more aspects of the present disclosure. The operations of the method 1300 may be implemented by a UE or its components as described herein. For example, the operations of the method 1300 may be performed by a UE 115 as described 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.
[0239] At 1305, the method may include receiving first control signaling that triggers an active time of a DRX period. The operations of 1305 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1305 may be performed by an active time manager 725 as described with reference to FIG. 7.
[0240] At 1310, the method may include receiving second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs. The operations of 1310 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1310 may be performed by a configuration manager 730 as described with reference to FIG. 7.
[0241] At 1315, the method may include monitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling. The operations of 1315 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1315 may be performed by a monitoring manager 735 as described with reference to FIG. 7.
[0242] FIG. 14 shows a flowchart illustrating a method 1400 that supports wakeup signal monitoring within DRX active times in accordance with one or more aspects of the present disclosure. The operations of the method 1400 may be implemented by a UE or its components as described herein. For example, the operations of the method 1400 may be performed by a UE 115 as described 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.
[0243] At 1405, the method may include receiving first control signaling that triggers an active time of a DRX period. The operations of 1405 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1405 may be performed by an active time manager 725 as described with reference to FIG. 7.
[0244] At 1410, the method may include receiving second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs. The operations of 1410 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1410 may be performed by a configuration manager 730 as described with reference to FIG. 7.
[0245] At 1415, the method may include monitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling. The operations of 1415 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1415 may be performed by a monitoring manager 735 as described with reference to FIG. 7.
[0246] At 1420, the method may include receiving third control signaling that configures, outside of the active time of the DRX period, one or more second wakeup signal monitoring occasions associated with triggering the active time. The operations of 1420 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1420 may be performed by an activation manager 740 as described with reference to FIG. 7.
[0247] At 1425, the method may include receiving a LP-WUS within a second wakeup signal monitoring occasion of the one or more second wakeup signal monitoring occasions outside of the active time, where the wakeup signal monitoring occasion within the active time and is monitored based on reception of the LP-WUS outside of the active time. The operations of 1425 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1425 may be performed by an activation manager 740 as described with reference to FIG. 7.
[0248] FIG. 15 shows a flowchart illustrating a method 1500 that supports wakeup signal monitoring within DRX active times in accordance with one or more aspects of the present disclosure. The operations of the method 1500 may be implemented by a UE or its components as described herein. For example, the operations of the method 1500 may be performed by a UE 115 as described 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.
[0249] At 1505, the method may include receiving first control signaling that triggers an active time of a DRX period. The operations of 1505 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed by an active time manager 725 as described with reference to FIG. 7.
[0250] At 1510, the method may include transmitting an indication of a threshold delay for activating a main radio of the UE after reception of a LP-WUS within the active time, where the second control signaling is based on the threshold delay. The operations of 1510 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed by a threshold delay manager 745 as described with reference to FIG. 7.
[0251] At 1515, the method may include receiving second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs. The operations of 1515 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed by a configuration manager 730 as described with reference to FIG. 7.
[0252] At 1520, the method may include monitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based on the second control signaling. The operations of 1520 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1520 may be performed by a monitoring manager 735 as described with reference to FIG. 7.
[0253] FIG. 16 shows a flowchart illustrating a method 1600 that supports wakeup signal monitoring within DRX active times in accordance with one or more aspects of the present disclosure. The operations of the method 1600 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1600 may be performed by a network entity as described with reference to FIGs. 1 through 4 and 9 through 12. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.
[0254] At 1605, the method may include transmitting first control signaling that triggers an active time of a DRX period. The operations of 1605 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed by an active time manager 1125 as described with reference to FIG. 11.
[0255] At 1610, the method may include transmitting second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals. The operations of 1610 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed by a configuration manager 1130 as described with reference to FIG. 11.
[0256] At 1615, the method may include transmitting a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time. The operations of 1615 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed by an LP-WUS manager 1135 as described with reference to FIG. 11.
[0257] At 1620, the method may include transmitting, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion. The operations of 1620 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1620 may be performed by a downlink manager 1140 as described with reference to FIG. 11.
[0258] FIG. 17 shows a flowchart illustrating a method 1700 that supports wakeup signal monitoring within DRX active times in accordance with one or more aspects of the present disclosure. The operations of the method 1700 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1700 may be performed by a network entity as described with reference to FIGs. 1 through 4 and 9 through 12. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.
[0259] At 1705, the method may include transmitting first control signaling that triggers an active time of a DRX period. The operations of 1705 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by an active time manager 1125 as described with reference to FIG. 11.
[0260] At 1710, the method may include transmitting second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals. The operations of 1710 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1710 may be performed by a configuration manager 1130 as described with reference to FIG. 11.
[0261] At 1715, the method may include transmitting a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time. The operations of 1715 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1715 may be performed by an LP-WUS manager 1135 as described with reference to FIG. 11.
[0262] At 1720, the method may include transmitting, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion. The operations of 1720 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1720 may be performed by a downlink manager 1140 as described with reference to FIG. 11.
[0263] At 1725, the method may include transmitting third control signaling that configures a first downlink control channel configuration associated with monitoring wakeup signals within the active time and a second downlink control channel configuration associated with not monitoring wakeup signals within the active time, where the LP-WUS is transmitted within the active time according to the first downlink control channel configuration based on transmitting the second control signaling that configures the one or more wakeup signal monitoring occasions within the active time. The operations of 1725 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1725 may be performed by a DCI manager 1165 as described with reference to FIG. 11.
[0264] The following provides an overview of aspects of the present disclosure:
[0265] Aspect 1: A method for wireless communications at a UE, comprising: receiving first control signaling that triggers an active time of a DRX period; receiving second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more LP-WUSs; and monitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based at least in part on the second control signaling.
[0266] Aspect 2: The method of aspect 1, further comprising: receiving third control signaling that configures, outside of the active time of the DRX period, one or more second wakeup signal monitoring occasions associated with triggering the active time; and receiving a LP-WUS within a second wakeup signal monitoring occasion of the one or more second wakeup signal monitoring occasions outside of the active time, wherein the wakeup signal monitoring occasion within the active time and is monitored based at least in part on reception of the LP-WUS outside of the active time.
[0267] Aspect 3: The method of aspect 2, wherein the second control signaling configures the one or more wakeup signal monitoring occasions with a first periodicity, a first duration, a first bandwidth , or any combination thereof that is different than a second periodicity, a second duration, a second bandwidth, or any combination thereof of the one or more second wakeup signal monitoring occasions.
[0268] Aspect 4: The method of any of aspects 1 through 3, wherein the second control signaling comprises a field that indicates that the one or more wakeup signal monitoring occasions configured by the second control signaling are within the active time of the DRX period.
[0269] Aspect 5: The method of any of aspects 1 through 4, further comprising: transmitting an indication of a threshold delay for activating a main radio of the UE after reception of a LP-WUS within the active time, wherein the second control signaling is based at least in part on the threshold delay.
[0270] Aspect 6: The method of aspect 5, wherein the threshold delay is different than a second threshold delay for activating the main radio after reception of a LP-WUS outside of the active time.
[0271] Aspect 7: The method of any of aspects 1 through 6, further comprising: receiving a DCI message that indicates a control channel skipping duration for skipping monitoring of one or more control channel monitoring occasions within the active time, wherein at least the wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions is monitored based at least in part on being within the control channel skipping duration.
[0272] Aspect 8: The method of aspect 7, wherein the one or more wakeup signal monitoring occasions within the active time are monitored based at least in part on the control channel skipping duration satisfying a threshold duration.
[0273] Aspect 9: The method of any of aspects 7 through 8, wherein a value of the control channel skipping duration indicates to monitor the one or more wakeup signal monitoring occasions for an entirety of the active time.
[0274] Aspect 10: The method of any of aspects 7 through 9, wherein the DCI message is a non-data scheduling DCI message.
[0275] Aspect 11: The method of any of aspects 7 through 10, further comprising: monitoring one or more second control channel monitoring occasions that are within the active time and outside of the control channel skipping duration.
[0276] Aspect 12: The method of any of aspects 1 through 11, further comprising: receiving third control signaling that configures one or more SSSGs that are associated with monitoring wakeup signals within the active time, wherein each SSSG comprises a respective set of control channel monitoring occasions within the active time; and receiving fourth control signaling that indicates for the UE to monitor a SSSG of the one or more SSSGs associated with monitoring wakeup signals within the active time, wherein at least the wakeup signal monitoring occasion within the active time is monitored based at least in part on the UE being indicated to monitor the SSSG of the one or more SSSGs.
[0277] Aspect 13: The method of aspect 12, further comprising: receiving a LP-WUS based at least in part on monitoring the wakeup signal monitoring occasion within the active time; and switching, within the active time and in response to receiving the LP-WUS, to monitor a second SSSG excluded from the one or more SSSGs associated with monitoring wakeup signals within the active time.
[0278] Aspect 14: The method of any of aspects 12 through 13, further comprising: communicating a quantity of temporally first control channel monitoring occasions that are within the active time and of the SSSG; and skipping monitoring of up to the quantity of temporally first control channel monitoring occasions within the active time based at least in part on the quantity being communicated.
[0279] Aspect 15: The method of any of aspects 12 through 14, wherein the one or more SSSGs associated with monitoring wakeup signals within the active time comprise fewer control channel monitoring occasions within the active time than a SSSG that is excluded from the one or more SSSGs.
[0280] Aspect 16: The method of any of aspects 1 through 15, further comprising: receiving third control signaling that configures a first downlink control channel configuration associated with monitoring wakeup signals within the active time and a second downlink control channel configuration associated with not monitoring wakeup signals within the active time, wherein the wakeup signal monitoring occasion is monitored within the active time according to the first downlink control channel configuration based at least in part on receiving the second control signaling that configures the one or more wakeup signal monitoring occasions within the active time.
[0281] Aspect 17: The method of aspect 16, wherein the first downlink control channel configuration includes a first set of candidate control channel skipping durations, a first set of candidate SSSGs, or both that are different than a second set of candidate control channel skipping durations, a second set of candidate SSSGs, or both included in the second downlink control channel configuration.
[0282] Aspect 18: The method of any of aspects 1 through 17, further comprising: monitoring one or more control channel monitoring occasions exclusively for DCI messages of a set of formats based at least in part on failing to receive a LP-WUS within the one or more wakeup signal monitoring occasions, wherein the one or more control channel monitoring occasions are within the active time and after the wakeup signal monitoring occasion.
[0283] Aspect 19: The method of aspect 18, further comprising: receiving third control signaling that configures the set of formats.
[0284] Aspect 20: The method of any of aspects 18 through 19, wherein the set of formats comprises a DCI format 0_0, a DCI format 1_0, or both, for uplink scheduling, downlink scheduling, or both.
[0285] Aspect 21: The method of any of aspects 1 through 20, further comprising: failing to receive a LP-WUS within the one or more wakeup signal monitoring occasions; detecting a control message within a control channel monitoring occasion that is within the active time and after the wakeup signal monitoring occasion; and transmitting an indication that wakeup signal monitoring within the active time is deactivated based at least in part on the LP-WUS not being received and the control message being detected within the active time.
[0286] Aspect 22: The method of aspect 21, further comprising: receiving control signaling that reactivates wakeup signal monitoring within the active time based at least in part on transmitting the indication that wakeup signal monitoring within the active time is deactivated.
[0287] Aspect 23: A method for wireless communications at a network entity, comprising: transmitting first control signaling that triggers an active time of a DRX period; transmitting second control signaling that configures, within the active time of the DRX period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals; transmitting a LP-WUS within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time; and transmitting, in response to transmitting the LP-WUS, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.
[0288] Aspect 24: The method of aspect 23, further comprising: transmitting third control signaling that configures, outside of the active time of the DRX period, one or more second wakeup signal monitoring occasions associated with triggering the active time; and transmitting a second LP-WUS within a second wakeup signal monitoring occasion of the one or more second wakeup signal monitoring occasions outside of the active time, wherein the wakeup signal monitoring occasion is within the active time and is transmitted based at least in part on transmission of the LP-WUS outside of the active time.
[0289] Aspect 25: The method of aspect 24, wherein the second control signaling configures the one or more wakeup signal monitoring occasions with a first periodicity, a first duration, a first bandwidth, or any combination thereof that is different than a second periodicity, a second duration, a second bandwidth, or any combination thereof of the one or more second wakeup signal monitoring occasions.
[0290] Aspect 26: The method of any of aspects 23 through 25, wherein the second control signaling comprises a field that indicates that the one or more wakeup signal monitoring occasions configured by the second control signaling are within the active time of the DRX period.
[0291] Aspect 27: The method of any of aspects 23 through 26, further comprising: receiving an indication of a threshold delay for activation of a main radio of a UE within the active time, wherein the second control signaling is based at least in part on the threshold delay.
[0292] Aspect 28: The method of aspect 27, wherein the threshold delay is different than a second threshold delay for activating the main radio of the UE outside of the active time.
[0293] Aspect 29: The method of any of aspects 23 through 28, further comprising: transmitting a DCI message that indicates a control channel skipping duration for skipping monitoring of one or more control channel monitoring occasions within the active time, wherein at least the wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions is monitored based at least in part on being within the control channel skipping duration.
[0294] Aspect 30: The method of aspect 29, wherein the one or more wakeup signal monitoring occasions within the active time are monitored based at least in part on the control channel skipping duration satisfying a threshold duration.
[0295] Aspect 31: The method of any of aspects 29 through 30, wherein a value of the control channel skipping duration indicates to monitor the one or more wakeup signal monitoring occasions for an entirety of the active time.
[0296] Aspect 32: The method of any of aspects 29 through 31, wherein the DCI message is a non-data scheduling DCI message.
[0297] Aspect 33: The method of any of aspects 29 through 32, further comprising: transmitting a second DCI message in one or more second control channel monitoring occasions that are within the active time and outside of the control channel skipping duration.
[0298] Aspect 34: The method of any of aspects 23 through 33, further comprising: transmitting third control signaling that configures one or more SSSGs that are associated with monitoring wakeup signals within the active time, wherein each SSSG comprises a respective set of control channel monitoring occasions within the active time; and transmitting fourth control signaling that indicates for a UE to monitor a SSSG of the one or more SSSGs associated with monitoring wakeup signals within the active time, wherein at least the LP-WUS is transmitted within the active time based at least in part on the fourth control signaling being transmitted.
[0299] Aspect 35: The method of aspect 34, further comprising: communicating, with the UE, a quantity of temporally first control channel monitoring occasions that are within the active time and of the SSSG.
[0300] Aspect 36: The method of any of aspects 34 through 35, wherein the one or more SSSGs associated with monitoring wakeup signals within the active time comprise fewer control channel monitoring occasions within the active time than a SSSG that is excluded from the one or more SSSGs.
[0301] Aspect 37: The method of any of aspects 23 through 36, further comprising: transmitting third control signaling that configures a first downlink control channel configuration associated with monitoring wakeup signals within the active time and a second downlink control channel configuration associated with not monitoring wakeup signals within the active time, wherein the LP-WUS is transmitted within the active time according to the first downlink control channel configuration based at least in part on transmitting the second control signaling that configures the one or more wakeup signal monitoring occasions within the active time.
[0302] Aspect 38: The method of aspect 37, wherein the first downlink control channel configuration includes a first set of candidate control channel skipping durations, a first set of candidate SSSGs, or both that are different than a second set of candidate control channel skipping durations, a second set of candidate SSSGs, or both included in the second downlink control channel configuration.
[0303] Aspect 39: The method of any of aspects 23 through 38, further comprising: transmitting DCI messages of a set of formats during one or more control channel monitoring occasions within the active time, wherein the one or more control channel monitoring occasions are within the active time and after the wakeup signal monitoring occasion.
[0304] Aspect 40: The method of aspect 39, further comprising: transmitting third control signaling that configures the set of formats at a UE.
[0305] Aspect 41: The method of any of aspects 39 through 40, wherein the set of formats comprises a DCI format 0_0, a DCI format 1_0, or both, for uplink scheduling, downlink scheduling, or both.
[0306] Aspect 42: The method of any of aspects 23 through 41, further comprising: receiving, from a UE, an indication that wakeup signal monitoring within the active time is deactivated for the UE.
[0307] Aspect 43: The method of aspect 42, further comprising: transmitting control signaling that reactivates wakeup signal monitoring within the active time for the UE based at least in part on determining that a channel condition associated with the UE satisfies a threshold channel condition.
[0308] Aspect 44: 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 22.
[0309] Aspect 45: A UE for wireless communications, comprising at least one means for performing a method of any of aspects 1 through 22.
[0310] Aspect 46: 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 22.
[0311] Aspect 47: A network entity 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 network entity to perform a method of any of aspects 23 through 43.
[0312] Aspect 48: A network entity for wireless communications, comprising at least one means for performing a method of any of aspects 23 through 43.
[0313] Aspect 49: 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 23 through 43.
[0314] 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.
[0315] 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.
[0316] 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.
[0317] 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 GPU, a 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.
[0318] The functions described herein may be implemented using hardware, software executed by a processor, code, 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, 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.
[0319] 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, phase change array, 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.
[0320] Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, or functions, whether referred to as software, firmware , middleware, microcode, hardware description language, or otherwise.
[0321] As used herein, including in the claims, “or” as used in a list of items (e.g., including 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 (e.g., 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. ”
[0322] 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 “a component” 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 “a component” 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. ”
[0323] The term “determine” or “determining” or “identify” or “identifying” encompasses a variety of actions and, therefore, “determining” or “identifying” 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” or “identifying” can include receiving (such as receiving information or signaling, e.g., receiving information or signaling for determining, receiving information or signaling for identifying) , accessing (such as accessing data in a memory, or accessing information) and the like. Also, “determining” or “identifying” can include resolving, obtaining, selecting, choosing, establishing and other such similar actions.
[0324] 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.
[0325] 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.
[0326] 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; andone 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 control signaling that triggers an active time of a discontinuous reception period;receive second control signaling that configures, within the active time of the discontinuous reception period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals; andmonitor a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based at least in part on the second control signaling.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 third control signaling that configures, outside of the active time of the discontinuous reception period, one or more second wakeup signal monitoring occasions associated with triggering the active time; andreceive a low-power wakeup signal within a second wakeup signal monitoring occasion of the one or more second wakeup signal monitoring occasions outside of the active time, wherein the wakeup signal monitoring occasion within the active time and is monitored based at least in part on reception of the low-power wakeup signal outside of the active time.The UE of claim 2, wherein the second control signaling configures the one or more wakeup signal monitoring occasions with a first periodicity, a first duration, a first bandwidth, or any combination thereof that is different than a second periodicity, a second duration, a second bandwidth, or any combination thereof of the one or more second wakeup signal monitoring occasions.The UE of claim 1, wherein the second control signaling comprises a field that indicates that the one or more wakeup signal monitoring occasions configured by the second control signaling are within the active time of the discontinuous reception period.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 an indication of a threshold delay for activating a main radio of the UE after reception of a low-power wakeup signal within the active time, wherein the second control signaling is based at least in part on the threshold delay.The UE of claim 5, wherein the threshold delay is different than a second threshold delay for activating the main radio after reception of a low-power wakeup signal outside of the active time.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 a downlink control information message that indicates a control channel skipping duration for skipping monitoring of one or more control channel monitoring occasions within the active time, wherein at least the wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions is monitored based at least in part on being within the control channel skipping duration.The UE of claim 7, wherein the one or more wakeup signal monitoring occasions within the active time are monitored based at least in part on the control channel skipping duration satisfying a threshold duration.The UE of claim 7, wherein a value of the control channel skipping duration indicates to monitor the one or more wakeup signal monitoring occasions for an entirety of the active time.The UE of claim 7, wherein the downlink control information message is a non-data scheduling downlink control information message.The UE of claim 7, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:monitor one or more second control channel monitoring occasions that are within the active time and outside of the control channel skipping duration.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 third control signaling that configures one or more search space set groups that are associated with monitoring wakeup signals within the active time, wherein each search space set group comprises a respective set of control channel monitoring occasions within the active time; andreceive fourth control signaling that indicates for the UE to monitor a search space set group of the one or more search space set groups associated with monitoring wakeup signals within the active time, wherein at least the wakeup signal monitoring occasion within the active time is monitored based at least in part on the UE being indicated to monitor the search space set group of the one or more search space set groups.The UE of claim 12, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:receive a low-power wakeup signal based at least in part on monitoring the wakeup signal monitoring occasion within the active time; andswitching, within the active time and in response to receive the low-power wakeup signal, to monitor a second search space set group excluded from the one or more search space set groups associated with monitoring wakeup signals within the active time.The UE of claim 12, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:communicate a quantity of temporally first control channel monitoring occasions that are within the active time and of the search space set group; andskip monitoring of up to the quantity of temporally first control channel monitoring occasions within the active time based at least in part on the quantity being communicated.The UE of claim 12, wherein the one or more search space set groups associated with monitoring wakeup signals within the active time comprise fewer control channel monitoring occasions within the active time than a search space set group that is excluded from the one or more search space set groups.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 third control signaling that configures a first downlink control channel configuration associated with monitoring wakeup signals within the active time and a second downlink control channel configuration associated with not monitoring wakeup signals within the active time, wherein the wakeup signal monitoring occasion is monitored within the active time according to the first downlink control channel configuration based at least in part on receiving the second control signaling that configures the one or more wakeup signal monitoring occasions within the active time.The UE of claim 16, wherein the first downlink control channel configuration includes a first set of candidate control channel skipping durations, a first set of candidate search space set groups, or both that are different than a second set of candidate control channel skipping durations, a second set of candidate search space set groups, or both included in the second downlink control channel configuration.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:monitor one or more control channel monitoring occasions exclusively for downlink control information messages of a set of formats based at least in part on failing to receive a low-power wakeup signal within the one or more wakeup signal monitoring occasions, wherein the one or more control channel monitoring occasions are within the active time and after the wakeup signal monitoring occasion.A network entity, comprising:one or more memories storing processor-executable code; andone or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the network entity to:transmit first control signaling that triggers an active time of a discontinuous reception period;transmit second control signaling that configures, within the active time of the discontinuous reception period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals;transmit a low-power wakeup signal within a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time; andtransmit, in response to transmitting the low-power wakeup signal, a downlink message within a downlink monitoring occasion that is within the active time and associated with the wakeup signal monitoring occasion.A method for wireless communications at a user equipment (UE) , comprising:receiving first control signaling that triggers an active time of a discontinuous reception period;receiving second control signaling that configures, within the active time of the discontinuous reception period, one or more wakeup signal monitoring occasions for reception of one or more low-power wakeup signals; andmonitoring a wakeup signal monitoring occasion of the one or more wakeup signal monitoring occasions within the active time based at least in part on the second control signaling.