Reconfiguration of c-DRX upon deactivation of LP-wus
By adjusting LP-WUS monitoring and reconfiguring DRX parameters based on UE coverage, the system addresses power consumption and latency issues when UEs move out of LP-WUS range, enhancing battery performance and communication efficiency.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-10-04
- Publication Date
- 2026-04-09
AI Technical Summary
Existing wireless communication systems face increased power consumption and latency when user equipment (UE) moves out of the coverage range of low-power wake-up signals (LP-WUS), leading to a fall-back to less frequent discontinuous reception (DRX) monitoring occasions, which increases power consumption and latency.
The system adjusts LP-WUS monitoring occasions and reconfigures DRX parameters based on UE coverage, activating more frequent DRX monitoring when LP-WUSs are deactivated, using a low-power wake-up receiver (LP-WUR) and adjusting DRX configurations to reduce power consumption and latency.
This approach reduces power consumption and improves battery performance at the UE by preventing unnecessary LP-WUS monitoring and tailoring DRX configurations, thereby reducing latency in wireless communications.
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Figure CN2024123226_09042026_PF_FP_ABST
Abstract
Description
RECONFIGURATION OF C-DRX UPON DEACTIVATION OF LP-WUS
[0001] INTRODUCTION
[0002] The following relates to wireless communications, including configurations for discontinuous reception (DRX) configurations and low-power wake-up signals (LP-WUSs) .
[0003] 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
[0004] 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.
[0005] A method by a user equipment (UE) is described. The method may include monitoring a set of low-power wake up signal (LP-WUS) monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE, transmitting, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs, receiving, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a discontinuous reception (DRX) configuration at the UE, where the control signaling is received based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs, and monitoring a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0006] An apparatus for wireless communication at a UE is described. The apparatus may include one or more memories, and one or more processors coupled with the one or more memories and configured to cause the UE to monitor a set of LP-WUS monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE, transmit, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs, receive, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is received based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs, and monitor a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0007] Another UE is described. The UE may include means for monitoring a set of LP-WUS monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE, means for transmitting, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs, means for receiving, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is received based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs, and means for monitoring a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0008] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by one or more processors to monitor a set of LP-WUS monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE, transmit, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs, receive, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is received based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs, and monitor a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0009] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the network entity, radio resource control (RRC) signaling indicating a first set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions may be enabled, and a second set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions may be disabled, where the control signaling indicates the second set of parameters based on the deactivation of the set of LP-WUS monitoring occasions.
[0010] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the first set of parameters includes a first periodicity and first subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a first on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, or both and the second set of parameters includes a second periodicity and a second subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a second on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, or both.
[0011] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the network entity, RRC signaling that indicates an initial set of parameters associated with the DRX configuration, where the set of parameters indicated via the control signaling includes a modification or reconfiguration of the initial set of parameters of the DRX configuration.
[0012] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the initial set of parameters indicated via the RRC signaling includes a first periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration and the set of parameters indicated via the control signaling includes a second periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration.
[0013] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the second periodicity may be shorter than the first periodicity based on the deactivation of the set of LP-WUS monitoring occasions.
[0014] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the initial set of parameters indicated via the RRC signaling includes a first on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, the set of parameters indicated via the control signaling includes a second on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, and the second on-duration timer may be longer than the first on-duration timer based on the deactivation of the set of LP-WUS monitoring occasions.
[0015] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the set of parameters include resources for a set of downlink control information of power saving (DCP) monitoring occasions associated with the DRX configuration and monitoring the set of downlink control channel monitoring occasions associated with the DRX configuration includes monitoring the set of DCP monitoring occasions.
[0016] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for performing measurements for reference signals received from the network entity, where the message indicating that the UE may be out of the coverage range associated with the LP-WUSs may be transmitted based on the measurements.
[0017] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the set of LP-WUS monitoring occasions may be associated with the DRX configuration to trigger the set of downlink control channel monitoring occasions of the DRX configuration.
[0018] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the set of LP-WUS monitoring occasions may be monitored to trigger an additional set of downlink control channel monitoring occasions that may be separate from the DRX configuration.
[0019] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the LP-WUSs may be associated with an on-off keying (OOK) waveform.
[0020] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for monitoring the set of LP-WUS monitoring occasions may be performed using a low-power wake-up receiver (LP-WUR) of the UE and monitoring the set of downlink control channel monitoring occasions may be performed using a main radio of the UE.
[0021] A method by a network entity is described. The method may include transmitting a set of LP-WUSs via a set of LP-WUS monitoring occasions to trigger downlink control channel monitoring occasions at a UE, receiving a message indicating that the UE is out of a coverage range associated with the LP-WUSs, transmitting control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is transmitted based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs, and transmitting downlink signals via a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0022] An apparatus for wireless communication at a network entity is described. The apparatus may include one or more memories, and one or more processors coupled with the one or more memories and configured to cause the network entity to transmit a set of LP-WUSs via a set of LP-WUS monitoring occasions to trigger downlink control channel monitoring occasions at a UE, receive a message indicating that the UE is out of a coverage range associated with the LP-WUSs, transmit control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is transmitted based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs, and transmit downlink signals via a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0023] Another network entity is described. The network entity may include means for transmitting a set of LP-WUSs via a set of LP-WUS monitoring occasions to trigger downlink control channel monitoring occasions at a UE, means for receiving a message indicating that the UE is out of a coverage range associated with the LP-WUSs, means for transmitting control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is transmitted based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs, and means for transmitting downlink signals via a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0024] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by one or more processors to transmit a set of LP-WUSs via a set of LP-WUS monitoring occasions to trigger downlink control channel monitoring occasions at a UE, receive a message indicating that the UE is out of a coverage range associated with the LP-WUSs, transmit control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is transmitted based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs, and transmit downlink signals via a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0025] 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 RRC signaling indicating a first set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions may be enabled, and a second set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions may be disabled, where the control signaling indicates the second set of parameters based on the deactivation of the set of LP-WUS monitoring occasions.
[0026] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the first set of parameters includes a first periodicity and a first subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a first on-duration timer associated with the set of downlink control channel monitoring occasions associated with the DRX configuration, or both and the second set of parameters includes a second periodicity and a second subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a second on-duration timer associated with the set of downlink control channel monitoring occasions associated with the DRX configuration, or both.
[0027] 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 RRC signaling that indicates an initial set of parameters associated with the DRX configuration, where the set of parameters indicated via the control signaling includes a modification or reconfiguration of the initial set of parameters of the DRX configuration.
[0028] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the initial set of parameters indicated via the RRC signaling includes a first periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration and the set of parameters indicated via the control signaling includes a second periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration.
[0029] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the second periodicity may be shorter than the first periodicity based on the deactivation of the set of LP-WUS monitoring occasions.
[0030] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the initial set of parameters indicated via the RRC signaling includes a first on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, the set of parameters indicated via the control signaling includes a second on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, and the second on-duration timer may be longer than the first on-duration timer based on the deactivation of the set of LP-WUS monitoring occasions.
[0031] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the set of parameters include resources for a set of DCP monitoring occasions associated with the DRX configuration and the downlink signals may be transmitted via the set of DCP monitoring occasions.
[0032] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the set of LP-WUS monitoring occasions may be associated with the DRX configuration to trigger the set of downlink control channel monitoring occasions of the DRX configuration.
[0033] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the set of LP-WUSs may be transmitted via the set of LP-WUS monitoring occasions to trigger an additional set of downlink control channel monitoring occasions that may be separate from the DRX configuration.
[0034] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the set of LP-WUSs may be associated with an OOK waveform.
[0035] 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
[0036] FIG. 1 shows an example of a wireless communications system that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0037] FIG. 2 shows an example of a network architecture that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0038] FIG. 3 shows an example of a wireless communications system that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0039] FIG. 4 shows an example of a DRX configuration that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0040] FIG. 5 shows an example of a monitoring configuration that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0041] FIG. 6 shows an example of a wireless communications system that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0042] FIG. 7 shows an example of a process flow that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0043] FIGs. 8 and 9 show block diagrams of devices that support reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0044] FIG. 10 shows a block diagram of a communications manager that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0045] FIG. 11 shows a diagram of a system including a device that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0046] FIGs. 12 and 13 show block diagrams of devices that support reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0047] FIG. 14 shows a block diagram of a communications manager that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0048] FIG. 15 shows a diagram of a system including a device that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.
[0049] FIGs. 16 and 17 show flowcharts illustrating methods that support reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure.DETAILED DESCRIPTION
[0050] In some wireless communications systems, wireless devices (e.g., UEs) may utilize different mechanisms for reducing power consumption. For example, UEs may operate according to a DRX configuration, where the UE transitions between “active states” (higher power consumption) and “inactive states” (lower power consumption) . In the context of a DRX configuration, the UE may be expected to “wake up” (e.g., activate or turn on a radio or other receiver component) for short periods of time during the inactive state to monitor for “wake up” control signaling (such as downlink control information of power saving (DCP) messaging) that indicates whether or not the network has data to communicate to UE, and therefore determine whether the UE is expected to wake up to monitor for physical downlink control channel (PDCCH) signaling during a PDCCH monitoring occasion within the next active state. However, the UE is required to activate the main radio of the UE in order to monitor for the “wake up” control signaling, which increases the power consumption of the UE during the inactive states of the DRX configuration.
[0051] Another power-saving mechanism used by some wireless devices is low-power wake-up signals (LP-WUSs) . Similar to the “wake up” control signaling in the DRX configuration, the network may utilize LP-WUSs to indicate whether the network has data to deliver to the UE, and therefore indicate for the UE to switch on the main radio to monitor for PDCCH signaling in a PDCCH monitoring occasion. LP-WUSs utilize simpler waveforms (such as on-off keying (OOK) waveforms) as compared to the “wake up” control signaling used in the DRX context (e.g., LP-WUSs exhibit simpler waveforms compared to PDCCH signaling, such as DCP messages) . As such, LP-WUSs can be received via a low-power wake-up receiver (LP-WUR) , which is simpler and less power-intensive compared to the main radio, thereby reducing the power consumption at the UE as the UE monitors for LP-WUSs while in an inactive state.
[0052] In this regard, some networks may utilize LP-WUS monitoring occasions to provide more opportunities to inform UEs that there is data waiting to be delivered to the UEs. That is, networks may utilize LP-WUS monitoring occasions in addition to, or instead of, PDCCH monitoring occasions associated with a DRX configuration. However, LP-WUSs may exhibit a shorter coverage range as compared to PDCCH signaling. For the purposes of the present disclosure, the term “coverage range” may be used to refer to a geographical distance or area where wireless devices are able to receive LP-WUSs or some other type of signaling. In this regard, the terms “coverage range, ” “coverage area, ” “geographical coverage area, ” and like terms, may refer to some region that enables wireless devices to receive LP-WUSs (or some other type of signaling) . The coverage area may be affected by weather / network conditions, terrestrial objects, etc., and may therefore exhibit a regular (e.g., circular, elliptical) or irregular shape. As such, the geographical movement of UEs within a network may affect the ability of the UEs to receive LP-WUSs, which may affect the timing as to when the network is able to indicate (to the UEs) when there is data waiting to be delivered to the UEs (such as when a UE moves outside of a coverage area for LP-WUSs) . In cases where a UE moves out of a coverage area for LP-WUSs (and therefore cannot receive LP-WUSs) , the UE may fall back to monitoring PDCCH monitoring occasions associated with a DRX configuration to determine when there is data to be delivered to the UE. However, the DRX configuration may have fewer PDCCH monitoring occasions, and longer duration between PDCCH monitoring occasions. As such, moving out of the coverage range for LP-WUSs and falling back to PDCCH monitoring based on a DRX configuration may result in increased latency of wireless communications, as the network may have fewer (e.g., less frequent) opportunities to inform the UE of data waiting to be delivered.
[0053] Accordingly, aspects of the present disclosure are directed to techniques for activating and deactivating LP-WUS monitoring occasions. Further, aspects of the present disclosure are directed to techniques for configuring (or reconfiguring) parameters of a DRX configuration upon activation / deactivation of LP-WUSs.
[0054] For example, while in a coverage range for LP-WUSs supported by the network, a UE may be configured to monitor a set of LP-WUS monitoring occasions that are used to trigger PDCCH monitoring occasions at the UE. The UE may perform measurements for reference signals received from the network to evaluate if the UE is still in the coverage range for the LP-WUSs. Based on the measurements, the UE may identify an exit condition that indicates the UE is no longer located within the coverage range of the LP-WUSs (such as based on signal strength measurements of reference signals received from the network) . In such cases, the UE may transmit a message that indicates the UE is no longer within the coverage range of the LP-WUSs. As such, the network may transmit control signaling that deactivates the LP-WUSs at the UE (e.g., control signaling that instructs the UE to refrain from monitoring LP-WUS monitoring occasions) . Additionally, based on the deactivation of the LP-WUSs, the control signaling may configure (or reconfigure) parameters of a DRX configuration that is used for PDCCH monitoring at the UE. For instance, the network may adjust a periodicity of a DRX cycle at the UE to enable more frequent PDCCH monitoring at the UE while the LP-WUSs are deactivated at the UE.
[0055] Techniques described herein may enable the network to activate and deactivate LP-WUSs at the UE based on whether or not the UE is within a coverage range of the LP-WUSs. As such, aspects of the present disclosure may prevent the UE from monitoring LP-WUS monitoring occasions when the UE is unable to receive LP-WUSs, thereby reducing power consumption at the UE and improving battery performance at the UE. Additionally, aspects of the present disclosure enable the network to configure (or reconfigure) a DRX configuration and associated PDCCH monitoring based on the activation and deactivation of LP-WUSs. In this regard, aspects of the present disclosure may enable the network to tailor DRX-related PDCCH monitoring based on whether or not the UE is able to perform LP-WUS-based monitoring, which may reduce a latency of wireless communications at the UE.
[0056] Aspects of the disclosure are initially described in the context of wireless communications systems. Additional aspects of the disclosure are described in the context of an example DRX configuration, an example LP-WUS triggered control channel monitoring configuration, and an example process flow. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to reconfiguration of C-DRX upon deactivation of LP-WUSs.
[0057] FIG. 1 shows an example of a wireless communications system 100 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs 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.
[0058] 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) . The network entities 105 may each include a communications manager 185 that is configured to facilitate or otherwise perform wireless communications.
[0059] 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. The UEs 115 may each include a communications manager 190 that is configured to facilitate or otherwise perform wireless communications.
[0060] As described herein, a node, which may be referred to as a node, a network node, a network entity, or a wireless node, may be a base station (e.g., any base station described herein) , a UE (e.g., any UE described herein) , a network controller, an apparatus, a device, a computing system, one or more components, and / or another suitable processing entity configured to perform any of the techniques described herein. For example, a network node may be a UE. As another example, a network node may be a base station. As another example, a first network node may be configured to communicate with a second network node or a third network node. In one aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a UE. In another aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a base station. In yet other aspects of this example, the first, second, and third network nodes may be different relative to these examples. Similarly, reference to a UE, base station, apparatus, device, computing system, or the like may include disclosure of the UE, base station, apparatus, device, computing system, or the like being a network node. For example, disclosure that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node. Consistent with this disclosure, once a specific example is broadened in accordance with this disclosure (e.g., a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node) , the broader example of the narrower example may be interpreted in the reverse, but in a broad open-ended way. In the example above where a UE being configured to receive information from a base station also discloses that a first network node being configured to receive information from a second network node, the first network node may refer to a first UE, a first base station, a first apparatus, a first device, a first computing system, a first one or more components, a first processing entity, or the like configured to receive the information; and the second network node may refer to a second UE, a second base station, a second apparatus, a second device, a second computing system, a second one or more components, a second processing entity, or the like.
[0061] As described herein, communication of information (e.g., any information, signal, or the like) may be described in various aspects using different terminology. Disclosure of one communication term includes disclosure of other communication terms. For example, a first network node may be described as being configured to transmit information to a second network node. In this example and consistent with this disclosure, disclosure that the first network node is configured to transmit information to the second network node includes disclosure that the first network node is configured to provide, send, output, communicate, or transmit information to the second network node. Similarly, in this example and consistent with this disclosure, disclosure that the first network node is configured to transmit information to the second network node includes disclosure that the second network node is configured to receive, obtain, or decode the information that is provided, sent, output, communicated, or transmitted by the first network node.
[0062] 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.
[0063] 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) .
[0064] 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) ) .
[0065] 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.
[0066] 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.
[0067] 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.
[0068] 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.
[0069] 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.
[0070] 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 reconfiguration of C-DRX upon deactivation of LP-WUSs 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) .
[0071] 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.
[0072] 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.
[0073] 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) .
[0074] 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) .
[0075] 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) .
[0076] 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.
[0077] The electromagnetic spectrum is often subdivided, based on frequency / wavelength, into various classes, bands, channels, etc. In 5G NR two initial operating bands have been identified as frequency range designations FR1 (410 MHz –7.125 GHz) and FR2 (24.25 GHz –52.6 GHz) . It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in various documents and articles. A similar nomenclature issue sometimes occurs with regard to FR2, which is often referred to (interchangeably) as a “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz –300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
[0078] The frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Recent 5G NR studies have identified an operating band for these mid-band frequencies as frequency range designation FR3 (7.125 GHz –24.25 GHz) . Frequency bands falling within FR3 may inherit FR1 characteristics and / or FR2 characteristics, and thus may effectively extend features of FR1 and / or FR2 into mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4–1 (52.6 GHz – 71 GHz) , FR4 (52.6 GHz –114.25 GHz) , and FR5 (114.25 GHz –300 GHz) . Each of these higher frequency bands falls within the EHF band.
[0079] With the above aspects in mind, unless specifically stated otherwise, it should be understood that the term “sub-6 GHz” or the like if used herein may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. Further, unless specifically stated otherwise, it should be understood that the term “millimeter wave” or the like if used herein may broadly represent frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4–1, and / or FR5, or may be within the EHF band.
[0080] 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.
[0081] 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.
[0082] 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) .
[0083] 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.
[0084] 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) ) .
[0085] 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) .
[0086] 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.
[0087] 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.
[0088] 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.
[0089] 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.
[0090] 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.
[0091] 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.
[0092] 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.
[0093] 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.
[0094] 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.
[0095] 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.
[0096] 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.
[0097] 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.
[0098] 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.
[0099] 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.
[0100] 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) .
[0101] 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.
[0102] 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.
[0103] 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) .
[0104] 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) .
[0105] 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.
[0106] 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.
[0107] Techniques described herein, in addition to or as an alternative to be carried out between UEs 115 and network entities 105, may be implemented via additional or alternative wireless devices, including IAB nodes 104, distributed units (DUs) 165, centralized units (CUs) 160, radio units (RUs) 170, and the like. For example, in some implementations, aspects described herein may be implemented in the context of a disaggregated radio access network (RAN) architecture (e.g., open RAN architecture) . In a disaggregated architecture, the RAN may be split into three areas of functionality corresponding to the CU 160, the DU 165, and the RU 170. The split of functionality between the CU 160, DU 165, and RU 175 is flexible and as such gives rise to numerous permutations of different functionalities depending upon which functions (e.g., MAC functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at the CU 160, DU 165, and RU 175. For example, 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.
[0108] Some wireless communications systems (e.g., wireless communications system 100) , infrastructure and spectral resources for NR access may additionally support wireless backhaul link capabilities in supplement to wireline backhaul connections, providing an IAB network architecture. One or more network entities 105 (e.g., base stations) may include CUs 160, DUs 165, and RUs 170 and may be referred to as donor network entities 105, donor base stations, or IAB donors. One or more DUs 165 (e.g., and / or RUs 170) associated with a donor network entity 105 (e.g., donor base station) may be partially controlled by CUs 160 associated with the donor network entity 105. The one or more donor network entities 105 (e.g., donor base stations, IAB donors) may be in communication with one or more additional network entities 105 (e.g., IAB nodes 104) via supported access and backhaul links. IAB nodes 104 may support mobile terminal (MT) functionality controlled and / or scheduled by DUs 165 of a coupled IAB donor. In addition, the IAB nodes 104 may include DUs 165 that support communication links with additional entities (e.g., IAB nodes 104, UEs 115, etc. ) 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., one or more IAB nodes 104 or components of IAB nodes 104) may be configured to operate according to the techniques described herein.
[0109] In some examples, the wireless communications system 100 may include a core network 130 (e.g., a next generation core network (NGC) ) , one or more IAB donors, IAB nodes 104, and UEs 115, where IAB nodes 104 may be partially controlled by each other and / or the IAB donor. The IAB donor and IAB nodes 104 may be examples of aspects of network entities 105. IAB donor and one or more IAB nodes 104 may be configured as (e.g., or in communication according to) some relay chain.
[0110] For instance, an access network (AN) or RAN may refer to communications between access nodes (e.g., IAB donor) , IAB nodes 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 wireline or wireless connection to the core network 130) . That is, an IAB donor may refer to a RAN node with a wireline or wireless connection to core network 130. The IAB donor may include a CU 160 and at least one DU 165 (e.g., and RU 170) , where the CU 160 may communicate with the core network 130 over an NG interface (e.g., some backhaul link) . The CU 160 may host layer 3 (L3) (e.g., RRC, service data adaption protocol (SDAP) , PDCP, etc. ) functionality and signaling. The at least one DU 165 and / or RU 170 may host lower layer, such as layer 1 (L1) and layer 2 (L2) (e.g., RLC, MAC, physical (PHY) , etc. ) functionality and signaling, and may each be at least partially controlled by the CU 160. The DU 165 may support one or multiple different cells. IAB donor and IAB nodes 104 may communicate over an F1 interface according to some protocol that defines signaling messages (e.g., F1 AP protocol) . Additionally, CU 160 may communicate with the core network over an NG interface (which may be an example of a portion of backhaul link) , and may communicate with other CUs 160 (e.g., a CU 160 associated with an alternative IAB donor) over an Xn-C interface (which may be an example of a portion of a backhaul link) .
[0111] IAB nodes 104 may refer to a RAN node that provides IAB functionality (e.g., access for UEs 115, wireless self-backhauling capabilities, etc. ) . IAB nodes 104 may include a DU 165 and an MT. A DU 165 may act as a distributed scheduling node towards child nodes associated with the IAB node 104, and the MT may act as a scheduled node towards parent nodes associated with the IAB node 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 one or more other IAB nodes 104) . Additionally, an IAB node 104 may also be referred to as a parent node or a child node to other IAB nodes 104, depending on the relay chain or configuration of the AN. Therefore, the MT entity of IAB nodes 104 (e.g., MTs) may provide a Uu interface for a child node to receive signaling from a parent IAB node 104, and the DU interface (e.g., DUs 165) may provide a Uu interface for a parent node to signal to a child IAB node 104 or UE 115.
[0112] For example, IAB node 104 may be referred to a parent node associated with IAB node, and a child node associated with IAB donor. The IAB donor may include a CU 160 with a wireline (e.g., optical fiber) or wireless connection to the core network and may act as parent node to IAB nodes 104. For example, the DU 165 of IAB donor may relay transmissions to UEs 115 through IAB nodes 104, and may directly signal transmissions to a UE 115. The CU 160 of IAB donor may signal communication link establishment via an F1 interface to IAB nodes 104, and the IAB nodes 104 may schedule transmissions (e.g., transmissions to the UEs 115 relayed from the IAB donor) through the DUs 165. That is, data may be relayed to and from IAB nodes 104 via signaling over an NR Uu interface to MT of the IAB node 104. Communications with IAB node 104 may be scheduled by DU 165 of IAB donor and communications with IAB node 104 may be scheduled by DU 165 of IAB node 104.
[0113] 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 (e.g., one or more IAB nodes 104 or components of IAB nodes 104) may be configured to support techniques for large round trip times in random access channel procedures as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 may additionally, or alternatively, be performed by components of the disaggregated RAN architecture (e.g., IAB nodes, DUs, CUs, etc. ) .
[0114] In some aspects, the respective wireless devices of the wireless communications system 100 (e.g., UEs 115, network entities 105, IoT devices, IAB nodes, etc. ) may support signaling and configurations for activating and deactivating LP-WUS monitoring occasions at wireless devices. Further, the respective devices of the wireless communications system 100 may support signaling and techniques for configuring (or reconfiguring) parameters of a DRX configuration upon activation / deactivation of LP-WUSs.
[0115] For example, a UE 115 of the wireless communications system 100 may be positioned within a coverage range for LP-WUSs transmitted by a network entity 105. As noted previously herein, the term “coverage range” may be used to refer to a geographical distance or area where wireless devices are able to receive LP-WUSs or some other type of signaling. In this regard, the terms “coverage range, ” “coverage area, ” “geographical coverage area, ” and like terms, may refer to some region that enables wireless devices to receive LP-WUSs (or some other type of signaling) . The coverage area may be affected by weather / network conditions, terrestrial objects, etc., and may therefore exhibit a regular (e.g., circular, elliptical) or irregular shape. While in the coverage range for the LP-WUSs, the UE 115 may be configured to monitor a set of LP-WUS monitoring occasions that are used to trigger PDCCH monitoring occasions at the UE 115. The UE 115 may perform measurements for reference signals received from the network entity 105 to evaluate if the UE 115 is still in the coverage range for the LP-WUSs. Based on the measurements, the UE 115 may identify an exit condition that indicates the UE 115 is no longer located within the coverage range of the LP-WUSs (such as based on signal strength measurements of reference signals received from the network) . In such cases, the UE 115 may transmit a message that indicates the UE 115 is no longer within the coverage range of the LP-WUSs. As such, the network entity 105 may transmit control signaling that deactivates the LP-WUSs at the UE 115 (e.g., control signaling that instructs the UE 115 to refrain from monitoring LP-WUS monitoring occasions) . Additionally, based on the deactivation of the LP-WUSs, the control signaling may configure (or reconfigure) parameters of a DRX configuration that is used for PDCCH monitoring at the UE 115. For instance, the network may adjust a periodicity of a DRX cycle at the UE to enable more frequent PDCCH monitoring at the UE 115 while the LP-WUSs are deactivated at the UE.
[0116] Techniques described herein may enable the network to activate and deactivate LP-WUSs at the UE 115 based on whether or not the UE 115 is within a coverage range of the LP-WUSs. As such, aspects of the present disclosure may prevent the UE 115 from monitoring LP-WUS monitoring occasions when the UE 115 is unable to receive LP-WUSs, thereby reducing power consumption at the UE 115 and improving battery performance at the UE 115. Additionally, aspects of the present disclosure enable the network to configure (or reconfigure) a DRX configuration and associated PDCCH monitoring based on the activation and deactivation of LP-WUSs. In this regard, aspects of the present disclosure may enable the network to tailor DRX-related PDCCH monitoring based on whether or not the UE 115 is able to perform LP-WUS-based monitoring, which may reduce a latency of wireless communications at the UE.
[0117] FIG. 2 shows an example of a network architecture 200 (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. The network architecture 200 may illustrate an example for implementing one or more aspects of the wireless communications system 100. The network architecture 200 may include one or more CUs 160-a that may communicate directly with a core network 130-a via a backhaul communication link 120-a, or indirectly with the core network 130-a through one or more disaggregated network entities 105 (e.g., a Near-RT RIC 175-b via an E2 link, or a Non-RT RIC 175-a associated with an SMO 180-a (e.g., an SMO Framework) , or both) . A CU 160-a may communicate with one or more DUs 165-a via respective midhaul communication links 162-a (e.g., an F1 interface) . The DUs 165-a may communicate with one or more RUs 170-a via respective fronthaul communication links 168-a. The RUs 170-a may be associated with respective coverage areas 110-a and may communicate with UEs 115-a via one or more communication links 125-a. In some implementations, a UE 115-a may be simultaneously served by multiple RUs 170-a.
[0118] Each of the network entities 105 of the network architecture 200 (e.g., CUs 160-a, DUs 165-a, RUs 170-a, Non-RT RICs 175-a, Near-RT RICs 175-b, SMOs 180-a, Open Clouds (O-Clouds) 205, Open eNBs (O-eNBs) 210) may include one or more interfaces or may be coupled with one or more interfaces configured to receive or transmit signals (e.g., data, information) via a wired or wireless transmission medium. Each network entity 105, or an associated processor (e.g., controller) providing instructions to an interface of the network entity 105, may be configured to communicate with one or more of the other network entities 105 via the transmission medium. For example, the network entities 105 may include a wired interface configured to receive or transmit signals over a wired transmission medium to one or more of the other network entities 105. Additionally, or alternatively, the network entities 105 may include a wireless interface, which may include a receiver, a transmitter, or transceiver (e.g., an RF transceiver) configured to receive or transmit signals, or both, over a wireless transmission medium to one or more of the other network entities 105.
[0119] In some examples, a CU 160-a may host one or more higher layer control functions. Such control functions may include RRC, PDCP, SDAP, or the like. Each control function may be implemented with an interface configured to communicate signals with other control functions hosted by the CU 160-a. A CU 160-a may be configured to handle user plane functionality (e.g., CU-UP) , control plane functionality (e.g., CU-CP) , or a combination thereof. In some examples, a CU 160-a may be logically split into one or more CU-UP units and one or more CU-CP units. A CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface, such as an E1 interface when implemented in an O-RAN configuration. A CU 160-a may be implemented to communicate with a DU 165-a, as necessary, for network control and signaling.
[0120] A DU 165-a may correspond to a logical unit that includes one or more functions (e.g., base station functions, RAN functions) to control the operation of one or more RUs 170-a. In some examples, a DU 165-a may host, at least partially, one or more of an RLC layer, a MAC layer, and one or more aspects of a PHY layer (e.g., a high PHY layer, such as modules for FEC encoding and decoding, scrambling, modulation and demodulation, or the like) depending, at least in part, on a functional split, such as those defined by the 3rd Generation Partnership Project (3GPP) . In some examples, a DU 165-a may further host one or more low PHY layers. Each layer may be implemented with an interface configured to communicate signals with other layers hosted by the DU 165-a, or with control functions hosted by a CU 160-a.
[0121] In some examples, lower-layer functionality may be implemented by one or more RUs 170-a. For example, an RU 170-a, controlled by a DU 165-a, may correspond to a logical node that hosts RF processing functions, or low-PHY layer functions (e.g., performing fast Fourier transform (FFT) , inverse FFT (iFFT) , digital beamforming, physical random access channel (PRACH) extraction and filtering, or the like) , or both, based at least in part on the functional split, such as a lower-layer functional split. In such an architecture, an RU 170-a may be implemented to handle over the air (OTA) communication with one or more UEs 115-a. In some implementations, real-time and non-real-time aspects of control and user plane communication with the RU (s) 170-a may be controlled by the corresponding DU 165-a. In some examples, such a configuration may enable a DU 165-a and a CU 160-a to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0122] The SMO 180-a may be configured to support RAN deployment and provisioning of non-virtualized and virtualized network entities 105. For non-virtualized network entities 105, the SMO 180-a may be configured to support the deployment of dedicated physical resources for RAN coverage requirements which may be managed via an operations and maintenance interface (e.g., an O1 interface) . For virtualized network entities 105, the SMO 180-a may be configured to interact with a cloud computing platform (e.g., an O-Cloud 205) to perform network entity life cycle management (e.g., to instantiate virtualized network entities 105) via a cloud computing platform interface (e.g., an O2 interface) . Such virtualized network entities 105 can include, but are not limited to, CUs 160-a, DUs 165-a, RUs 170-a, and Near-RT RICs 175-b. In some implementations, the SMO 180-a may communicate with components configured in accordance with a 4G RAN (e.g., via an O1 interface) . Additionally, or alternatively, in some implementations, the SMO 180-a may communicate directly with one or more RUs 170-a via an O1 interface. The SMO 180-a also may include a Non-RT RIC 175-a configured to support functionality of the SMO 180-a.
[0123] The Non-RT RIC 175-a may be configured to include a logical function that enables non-real-time control and optimization of RAN elements and resources, Artificial Intelligence (AI) or Machine Learning (ML) workflows including model training and updates, or policy-based guidance of applications / features in the Near-RT RIC 175-b. The Non-RT RIC 175-a may be coupled to or communicate with (e.g., via an A1 interface) the Near-RT RIC 175-b. The Near-RT RIC 175-b may be configured to include a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions over an interface (e.g., via an E2 interface) connecting one or more CUs 160-a, one or more DUs 165-a, or both, as well as an O-eNB 210, with the Near-RT RIC 175-b.
[0124] In some examples, to generate AI / ML models to be deployed in the Near-RT RIC 175-b, the Non-RT RIC 175-a may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 175-b and may be received at the SMO 180-a or the Non-RT RIC 175-a from non-network data sources or from network functions. In some examples, the Non-RT RIC 175-a or the Near-RT RIC 175-b may be configured to tune RAN behavior or performance. For example, the Non-RT RIC 175-a may monitor long-term trends and patterns for performance and employ AI or ML models to perform corrective actions through the SMO 180-a (e.g., reconfiguration via O1) or via generation of RAN management policies (e.g., A1 policies) .
[0125] FIG. 3 shows an example of a wireless communications system 300 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. In some examples, aspects of the wireless communications system 300 may implement, or be implemented by, aspects of the wireless communications system 100, the network architecture 200, or both. In particular, the wireless communications system 300 may support configurations and signaling for activating and deactivating LP-WUSs at a UE 115-a, and for configuring (or reconfiguring) a DRX configuration at the UE 115-a based on the activation / deactivation of LP-WUS monitoring.
[0126] The wireless communications system 300 may include a network entity 105-a and a UE 115-a, which may be examples of wireless devices as described herein. In some aspects, the network entity 105-a and the UE 115-a may communicate with one another using a communication link 305, which may be an example of an NR or LTE link, sidelink (e.g., PC5 link) , and the like, between the respective devices. In some cases, the communication link 305 may include an example of an access link (e.g., Uu link) which may include a bi-directional link that enables both uplink and downlink communication. For example, the UE 115-a may transmit uplink signals, such as uplink control signals or uplink data signals, to one or more components of the network entity 105-a using the communication link 305, and one or more components of the network entity 105-a may transmit downlink signals, such as downlink control signals or downlink data signals, to the UE 115-a using the communication link 305.
[0127] As noted previously herein, in some wireless communications systems, wireless devices (e.g., UEs 115) may utilize different mechanisms for reducing power consumption. For example, UEs 115 may operate according to a DRX configuration, where the UE 115 transitions between “active states” (higher power consumption) and “inactive states” (lower power consumption) . For instance, as shown in FIG. 3, the UE 115-a may be configured with a DRX configuration 310 that includes multiple repeating DRX periods 315-a, 315-b. Each DRX period 315 may include an active period 320-a, 320-b and an inactive period 325-a, 325-b. In some cases, the active periods 320 of the DRX configuration may additionally, or alternatively, be referred to as downlink control channel monitoring occasions, or PDCCH monitoring occasions.
[0128] Connected-mode DRX (C-DRX) is a UE 115 power saving procedure in which UE 115 periodically wakes up to monitor for “wake up” control messages from network, such as DCP messages. For instance, as shown in the DRX configuration 310, the UE 115-a may be expected to periodically wake up to monitor for DCP messages (which are a type of PDCCH signaling) during designated monitoring occasions 330-a, 330-b. The network may use such DCP messages within the monitoring occasions 330-a, 330-b to indicate whether the network has data to deliver to the UE 115-a. As such, the network may use the monitoring occasions 330 to trigger the UE 115-a to turn on the main radio in subsequent active periods 320-a, 320-b (e.g., wake up for PDCCH monitoring occasions) so that the UE 115-a can receive data from the network. In the context of C-DRX, when the UE 115 is not monitoring for PDCCH, the UE 115 is allowed to go into a sleep state (e.g., low-power state, inactive period 325) .
[0129] One disadvantage of C-DRX is that the periodicity of DCP monitoring is fixed once configured. That is, the periodicity of the PDCCH monitoring occasions 330 for receiving the DCP messages may be fixed once the UE 115-a is configured with the DRX configuration 310. As such, the UE 115 may be expected to wake up and monitor for DCP messages during every PDCCH monitoring occasion 330 and / or during every “on duration” (e.g., active period 320, PDCCH monitoring occasion) even when network has no data to transmit to UE 115. Additionally, in the context of C-DRX, the network may utilize DCP messages during the monitoring occasions 330-a, 330-b in order to trigger the active periods 320 (e.g., trigger PDCCH monitoring occasions) of the DRX periods 315. Such DCP messages may include complex waveforms that must be received and processed by a main radio 335 at the UE 115-a. That is, the UE 115-a may be required to turn on the main radio 335 for every monitoring occasion 330 (and during every active period 320 / PDCCH monitoring occasion) , which further increases the energy consumption at the UE 115-a. These disadvantages limit the power saving gains and latency performance of conventional C-DRX configurations.
[0130] A more detailed explanation of a C-DRX configuration is shown and described in FIG. 4.
[0131] FIG. 4 shows an example of a DRX configuration 400 (e.g., C-DRX configuration) that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. In some examples, aspects of the DRX configuration 400 may implement, or be implemented by, aspects of the wireless communications system 100, the network architecture 200, the wireless communications system 300, or any combination thereof. For example, the DRX configuration 400 shown in FIG. 4 may be an example of the DRX configuration 310 shown and described in FIG. 3, and may include active periods 420 and inactive periods 445.
[0132] As shown in FIG. 4, the DRX configuration 400 may include multiple repeating DRX periods 405-a, 405-b. Each DRX period 405 may include an active period 420-a, 420-b (e.g., PDCCH monitoring occasion) and an inactive period 445-a, 445-b. A UE 115 configured with the DRX configuration 400 may be configured to monitor for control signals in PDCCH from the serving cell during the respective active periods 420-a, 420-b. The active periods 420 (e.g., “active time, ” PDCCH monitoring occasions) may include time periods where an on-duration timer 430 (e.g., drx-OnDurationTimer) and / or an inactivity timer 440 (e.g., drx-InactivityTimer) configured for the DRX configuration 400 or DRX group is running.
[0133] For example, the UE 115 may start the on-duration timer 430 to begin an active period 420-a (e.g., PDCCH monitoring occasion) for a DRX period 405. If the UE 115 receives a PDCCH message 435 during the active period 420-a (e.g., while the on-duration timer 430 is running) , the UE 115 may start the inactivity timer 440 in order to extend the active period 420-a (e.g., PDCCH monitoring occasion) to perform some communication scheduled by the PDCCH message 435. That is, if the UE 115 receives a PDCCH message 435 that indicates a new transmission (e.g., downlink, uplink, and / or sidelink message) on a serving cell of the DRX group, the UE 115 may be configured to start or restart the drx-InactivityTimer (e.g., inactivity timer 440) in order to extend the active period 420-a so that the UE 115 can perform the scheduled communication.
[0134] In some aspects, the starting subframe of a DRX cycle (e.g., DRX configuration 400) may be determined based on a configuration parameter drx-LongCycleStartOffset. Such DRX configuration parameters may be configured via control signaling (e.g., RRC signaling) from the network.
[0135] In some aspects, according to a conventional C-DRX configuration (e.g., DRX configuration 400) , the UE 115 may be configured to monitor for DCI of power saving (DCP) messages (DCP messages 410) that are used to trigger the UE 115 to perform PDCCH monitoring during a subsequent active period 420 (e.g., subsequent PDCCH monitoring occasion) . For example, as described in the context of FIG. 3, the UE 115 may be configured to monitor for DCP messages 410 during PDCCH monitoring occasions (e.g., monitoring occasions 330) , where the DCP messages 410 are used to trigger the UE 115 to “wake up” to monitor for PDCCH signaling in a subsequent active period 420.
[0136] As shown in FIG. 4, the UE 115 may be configured to initiate an active period 420-a some time duration (defined by offset 415) after receiving the DCP message 410. For example, the offset 415 may include ps-Offset-r16, which may define the start of the search-time of DCI format 2–6 with CRC scrambled by PS-RNTI relative to the start of the drx-onDurationTimer of Long DRX. The value of the offset 415 (e.g., ps-Offset-r16) may be an integer multiple value of 0.125 milliseconds (ms) (e.g., ps-Offset-r16=1 corresponds to 0.125 ms, =2 corresponds to 0.25 ms, =3 corresponds to 0.375 ms, etc. ) . The active period 420-a of the DRX cycle may start some number of slots, as defined by an offset 425 (e.g., drx-SlotOffset) after the start of the DRX period 405-a. That is, the UE 115 may initiate the on-duration timer 430 (e.g., drx-OnDurationTimer) some amount of time after receiving the DCP message 410, the amount of time based on an offset 415 and an offset 425.
[0137] DCP messages 410 may include a type of wake-up signal that is transmitted in DCI. As such, DCP messages are a type of PDCCH message, and can therefore only be received via a main radio 335 of the UE 115-a (e.g., cannot be received via the LP-WUR 340) . As such, using DCP messages 410 to trigger PDCCH monitoring results in increased power consumption at the UE 115 because the UE 115 is unable put the main radio 335 into a deep sleep mode (e.g., main radio 335 cannot be completely turned off) .
[0138] Furthermore, the location of DCP monitoring occasions used to receive the DCP messages 410 may be fixed (e.g., inferred) based on the location of the DRX active periods 420 (e.g., PDCCH monitoring occasions) in the time domain. That is, the UE 115 may be configured with the DRX configuration 400, where the DRX periods 405 and / or active periods 420 (e.g., PDCCH monitoring occasions) are static and fixed in the time domain based on the DRX configuration 400. In such cases, the DCP monitoring occasions for receiving DCP messages 410 may be fixed relative to the fixed active periods 420 / PDCCH monitoring occasions. The fixed positions of the DCP monitoring occasions relative to the active periods 420 may result in increased latency. For example, if the network has data to communicate to the UE 115, the network may have to wait until a next DCP monitoring occasion (which is fixed based on the DRX configuration 400) in order to transmit a DCP message 410 to the UE 115, which may result in increased latency.
[0139] Taken together, conventional DRX configurations 400 suffer from several shortfalls, including increased power consumption at the UE 115 (resulting from using DCP messages 410 that are received using the main radio 335) , and increased latency (due to the position of DCP monitoring occasions being static / fixed relative to the DRX periods 405 / active periods 420 of the DRX configuration) .
[0140] Accordingly, aspects of the present disclosure are directed to configurations and techniques that address some of the shortfalls of conventional DRX configurations. In particular, aspects of the present disclosure are directed to techniques that combine C-DRX configurations with LP-WUS triggered PDCCH monitoring.
[0141] Reference will again be made to FIG. 3.
[0142] Some wireless communications systems may implement LP-WUSs 345 as another power-saving mechanism at the UE 115-a. In particular, in accordance with aspects of the present disclosure, the wireless communications system 300 may utilize LP-WUS 345 triggered PDCCH monitoring with C-DRX configuration as a power saving procedure. For LP-WUS 345 triggered PDCCH monitoring, the UE 115-a may be equipped with a LP-WUR 340, which may exhibit lower complexity and lower power consumption as compared to the main radio 335. The main radio 335 may be able to receive and process complex waveforms, but may take longer wait times to turn on and off. Comparatively, the LP-WUR 340 may be capable of receiving and processing simple signals (e.g., limited bandwidth and simpler waveform) , but may be switched on and off quickly. As such, the LP-WUR 340 may use significantly less power to operate as compared to the main radio 335.
[0143] In accordance with some aspects of the present disclosure, in order to reduce power consumption associated with the DRX configuration 310, the network entity 105-a may utilize LP-WUSs 345 during the monitoring occasions 330 in order to trigger active periods 320 (e.g., PDCCH monitoring occasions) of the DRX configuration. LP-WUSs 345 may include a simpler waveform (e.g., OOK waveform, such as OOK-1 or OOK-4) waveform as compared to PDCCH messages, thereby enabling the UE 115-a to utilize the LP-WUR 340 to receive the LP-WUSs 345 (instead of having to use the main radio 335 for receiving PDCCH messages) .
[0144] An OOK waveform is a sequence that includes high power / amplitude durations (e.g., ON durations) and low (or zero) power / amplitude durations (e.g., OFF durations) from base-band point of view. OOK-1 may be used to convey 1 bit of information in 1 OFDM symbol (using amplitude of OOK-1 waveform) . Comparatively, OOK-4 may be used to convey M bits of information in 1 OFDM symbol (using amplitude of OOK-4 waveform) . Any signal is mathematically expressed as s (t) =A (t) ejφ (t) , where A (t) is the amplitude and φ (t) is the phase, where information can be transmitted in amplitude or phase (or both) . However, OOK waveforms may be simpler in that only the amplitude is used to convey information (e.g., OOK-4 waveform only uses amplitude) . As such, because LP-WUSs are simpler waveforms, they may require less energy to transmit / decode, but may convey less data (e.g., some LP-WUSs may carry a maximum of 8 bits) .
[0145] For example, in the context of LP-WUS 345 triggered PDCCH monitoring, the UE 115-a may switch off the main radio 335 to save power (e.g., UE 115-a turns off the main radio 335 to go into a deep sleep mode) . With the main radio 335 off, the UE 115-a may use the LP-WUR 340 to monitor for LP-WUSs 345 during the monitoring occasions 330. If the network entity 105-a transmits an LP-WUS 345 and the UE 115-a receives the LP-WUS 345 within the monitoring occasion 330-a, the UE 115-a (switches on) its main radio 335 in order to monitor for (and receive) PDCCH signaling within the active period 320-a using the main radio 335. In other words, an LP-WUS 345 received via the LP-WUR 340 during the monitoring occasion 330-a may trigger the UE 115-a to monitor for PDCCH signaling using the main radio 335 during the active period 320 (e.g., LP-WUS 345 triggered PDCCH monitoring) .
[0146] In addition to triggering PDCCH monitoring, LP-WUS 345 may also be used to indicate other information, such as to indicate for the UE to transmit sounding reference signals (SRSs) , transmit channel state information (CSI) reports, switch Rx beams, etc. Using LP-WUSs 345 to indicate or trigger these other functions may further prevent the UE 115-a from having to wake up the main radio 335 to receive control signaling that would otherwise be used to trigger these functions, thereby further reducing power consumption at the UE 115-a.
[0147] In accordance with some aspects of the present disclosure, the UE 115-a may be configured with LP-WUS monitoring occasions 330 that are usable for triggering PDCCH monitoring. For example, in some cases, the UE 115-a may be configured (by the network, such as via RRC signaling) with a first set of LP-WUS monitoring occasions 330 that are associated with the DRX configuration 310. Additionally, or alternatively, the UE 115-a may be configured with a second set of LP-WUS monitoring occasions 330 that are separate / independent from (e.g., not associated with) the DRX configuration 310. In this regard, the first set of LP-WUS monitoring occasions 330 associated with the DRX configuration 310 (e.g., DRX-related LP-WUS monitoring occasions) may be usable for triggering active periods 320 (e.g., PDCCH monitoring occasions) associated with the DRX configuration 310. Comparatively, the second set of LP-WUS monitoring occasions 330 that are not associated with the DRX configuration 310 (e.g., non-DRX LP-WUS monitoring occasions) may be usable for triggering active periods 320 (e.g., PDCCH monitoring occasions) that are separate / independent from (e.g., not associated with) the DRX configuration 310. In some cases, the first and second sets of LP-WUS monitoring occasions 330 may be associated with different periodicities.
[0148] In order to combine DRX configurations (e.g., C-DRX) and LP-WUS-triggered PDCCH monitoring, aspects of the present disclosure are directed to signaling and configurations for replacing DCP messages (e.g., DCP messages 410) with LP-WUS messages, and for configuring additional LP-WUS monitoring occasions that are not associated with (e.g., separate / independent from) DRX configurations 310. Additionally, aspects of the present disclosure are directed to signaling and configurations that enable UEs 115 to determine when to monitor for PDCCH triggered by LP-WUSs, as well as how the UEs 115 are to monitor for such PDCCH (e.g., which / how timers for PDCCH monitoring should be configured) . Further, aspects of the present disclosure are directed to signaling and configurations for activating / deactivating LP-WUS-triggered PDCCH monitoring, and for configuring (or reconfiguring) DRX configuration (s) at the UE 115-a based on the activation / deactivation of LP-WUS-triggered PDCCH monitoring.
[0149] Attendant advantages of the LP-WUS-triggered PDCCH monitoring techniques described herein are further shown and described in FIG. 5.
[0150] FIG. 5 shows an example of a monitoring configuration 500 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. In some examples, aspects of the monitoring configuration 500 may implement, or be implemented by, aspects of the wireless communications system 100, the wireless communications system 300, the DRX configuration 400, or any combination thereof. In particular, the monitoring configuration 500 illustrates techniques for combining a C-DRX configuration with LP-WUS-triggered PDCCH monitoring, according to aspects of the present disclosure.
[0151] As noted previously herein, in some aspects, a UE 115 may be configured with a DRX configuration (e.g., C-DRX configuration) including multiple repeating DRX periods (e.g., DRX period 505) . In accordance with some aspects of the present disclosure, a UE 115 may be configured with a first set of LP-WUS monitoring occasions 510 associated with the DRX configuration. For example, as shown in FIG. 4, the UE 115 may be configured with a first set of LP-WUS monitoring occasions 510-a, 510-b associated with the DRX configuration, where the first set of LP-WUS monitoring occasions 510-a, 510-b are usable for triggering a first set of PDCCH monitoring occasions of the DRX configuration. For example, the LP-WUS monitoring occasion 510-a may be usable for triggering a first DRX-related PDCCH monitoring occasion (e.g., first active period 520-a) , and the LP-WUS monitoring occasion 510-b may be usable for triggering a DRX-related PDCCH monitoring occasion in the next DRX period, immediately after DRX period 505.
[0152] Additionally, in some aspects, the UE 115 may be configured with a second set of LP-WUS monitoring occasions 515 that are not associated with the DRX configuration (e.g., second set of LP-WUS monitoring occasions 515 that are independent from the DRX configuration) . For example, as shown in FIG. 5, the UE 115 may be configured with a second set of LP-WUS monitoring occasions 515-a, 515-b, 515-c, 515-d, and 515-e that are not associated with (e.g., separate or independent from) the DRX configuration, where the second set of LP-WUS monitoring occasions 515 are usable for triggering a second set of PDCCH monitoring occasions that are separate / independent from the DRX configuration. For example, as shown in FIG. 5, the LP-WUS monitoring occasion 515-d may be usable for triggering a non-DRX related PDCCH monitoring occasion (e.g., active period 520-b) that is separate / independent from the PDCCH monitoring occasion (e.g., active period 520-a) of the DRX configuration. The second set of LP-WUS monitoring occasions 515-a, 515-b, 515-c, 515-d, and 515-e, together with the first set of LP-WUS monitoring occasions 510-a and 510-b, enable the UE 115 to have more than one active period 520 or more than one PDCCH monitoring occasion (e.g., more than one active period 520) within a time window whose duration is equal to DRX period 505.
[0153] In some aspects, the first set of LP-WUS monitoring occasions 510 and the second set of LP-WUS monitoring occasions 515 may be configured by the network via the same or different control signaling (e.g., same RRC message, different RRC messages) . As described previously herein, the first set of LP-WUS monitoring occasions 510 and the second set of LP-WUS monitoring occasions 515 may be usable for communicating LP-WUSs that are associated with a simplified waveform (e.g., OOK waveform) that may be received via the LP-WUR 340 of the UE 115.
[0154] The first set of LP-WUS monitoring occasions 510 associated with the DRX configuration may enable increased power saving and reduced latency when the UE 115 has occasional, periodic, and / or regular downlink traffic from the network. Comparatively, the second set of LP-WUS monitoring occasions 515 that are separate / independent from the DRX configuration may provide increased latency reduction when the UE 115 has occasional, bursty, and / or irregular downlink traffic from the network. As such, configuring the UE 115 with both sets of LP-WUS monitoring occasions 510, 515 may enable benefits of both respective designs.
[0155] Configuring the UE 115 with different sets of LP-WUS monitoring occasions may provide more opportunities for the network to inform the UE 115 of data traffic to be communicated to the UE 115, thereby reducing a latency of the data traffic. In particular, the first set of LP-WUS monitoring occasion 510 may be associated with a different periodicity as compared to the second set of LP-WUS monitoring occasions 515. In particular, the second set of LP-WUS monitoring occasions 515 may be associated with a shorter periodicity in order to “fill the gap” between active periods 520 associated with the DRX cycle.
[0156] For example, as shown in FIG. 4, the first set of LP-WUS monitoring occasions 510 may be associated with a first periodicity such that there is one LP-WUS monitoring occasion 510 from the first set of LP-WUS monitoring occasions 510 within each DRX period 505. Comparatively, the second set of LP-WUS monitoring occasions 515 may be associated with a second periodicity such that there are multiple LP-WUS monitoring occasion 515 from the second set of LP-WUS monitoring occasions 515 within each DRX period 505. In this regard, the second set of LP-WUS monitoring occasions 515 may provide additional opportunities within each DRX period 505 for the network to inform the UE 115 of data traffic that is to be delivered to the UE 115.
[0157] The periodicity of the first set of LP-WUS monitoring occasions 510 and the second set of LP-WUS monitoring occasions 515 for triggering PDCCH monitoring occasions is non-trivial. In particular, the periodicities of the respective sets of LP-WUS monitoring occasions may determine a relative timing of the PDCCH monitoring occasion (e.g., active periods 520) triggered by the respective LP-WUS monitoring occasion.
[0158] For example, as shown in FIG. 4, each LP-WUS monitoring occasion from the first set of LP-WUS monitoring occasions 510 may be usable for triggering a corresponding active period 520 (e.g., DRX-related PDCCH monitoring occasion) in a subsequent slot / subframe relative to the respective LP-WUS monitoring occasion. For instance, reception of an LP-WUS via the LP-WUS monitoring occasion 510-a may be used to trigger a DRX-related PDCCH monitoring occasion (e.g., active period 520-b) in the subsequent slot / subframe. Similarly, reception of an LP-WUS via the LP-WUS monitoring occasion 510-b may be used to trigger a DRX-related PDCCH monitoring occasion (e.g., active period 520-b) in the subsequent slot / subframe.
[0159] Comparatively, at least some of the second set of LP-WUS monitoring occasions 515 may be usable for triggering non-DRX related PDCCH monitoring occasions in the same slot / subframe as the respective LP-WUS monitoring occasion. For instance, as shown in FIG. 4, reception of an LP-WUS via the LP-WUS monitoring occasion 515-d may be used to trigger an additional active period 520-b (e.g., non-DRX related PDCCH monitoring occasion) in the same slot / subframe as the LP-WUS monitoring occasion 515-b.
[0160] In this regard, the first set of LP-WUS monitoring occasions 510 associated with the DRX configuration may enable increased power saving and reduced latency when the UE 115 has occasional, periodic, and / or regular downlink traffic from the network. Comparatively, the second set of LP-WUS monitoring occasions 515 that are independent from the DRX configuration may provide increased latency reduction when the UE 115 has occasional, bursty, and / or irregular downlink traffic from the network. As such, configuring the UE 115 with both sets of LP-WUS monitoring occasions 510, 515 may enable benefits of both respective designs.
[0161] As noted previously herein, the position of the second set of LP-WUS monitoring occasions 515 in the time domain may not be tied to the DRX configuration, and may therefore be more flexible as compared to the position of the first set of LP-WUS monitoring occasions 510. For example, as described previously herein, a position of the first set of LP-WUS monitoring occasions 510 in the time domain may be determined (e.g., inferred, derived) based on a position of the DRX-related PDCCH monitoring occasions (e.g., active periods 520) of the DRX configuration. That is, the DRX periods 505 and corresponding PDCCH monitoring occasions / active periods 520 of the DRX configuration may be fixed or static once configured, where the position of the first set of LP-WUS monitoring occasions 510 are based on the position of the PDCCH monitoring occasions / active periods 520 of the DRX configuration.
[0162] Comparatively, the position of the second set of LP-WUS monitoring occasions 515 may not be based on (e.g., tied to) the DRX configuration. As such, the non-DRX related PDCCH monitoring occasions (e.g., active period 520-b) may be based on a position of the second set of LP-WUS monitoring occasions 515 in the time domain. In this regard, non-DRX related PDCCH monitoring occasions (e.g., non-DRX related active period 520-b) may “float” or “slide” in the time domain based on the corresponding LP-WUS monitoring occasion 515 from the second set of LP-WUS monitoring occasions 515 that is used to receive an LP-WUS.
[0163] To summarize, in the context of a DRX configuration, the position of the PDCCH monitoring occasions / active periods 520 are fixed, where the position of the first set of LP-WUS monitoring occasions 510 is determined (e.g., fixed) based on the position of the PDCCH monitoring occasions / active periods 520. Comparatively, the position of the second set of LP-WUS monitoring occasions 515 may be flexible or freely configured, where the position of the non-DRX PDCCH monitoring occasions / active periods 520 may be based on the position of the second set of LP-WUS monitoring occasions 515.
[0164] In some implementations, the UE 115 may be configured to monitor (using the LP-WUR 340) both the first set of LP-WUS monitoring occasions 510 and the second set of LP-WUS monitoring occasions 515. In some aspects, the first set of LP-WUS monitoring occasions 510 associated with the DRX configuration and the second set of LP-WUS monitoring occasions 515 that are separate / independent from the DRX configuration may be associated with different timers for activating / implementing the respective active periods 520 / PDCCH monitoring occasions.
[0165] In additional or alternative implementations, the UE 115 may be configured with the first set of LP-WUS monitoring occasions 510 and the second set of LP-WUS monitoring occasions 515, and the network may indicate which one is to be used or activated. For example, the network may use MAC-CE activation commands to activate one of the first set of LP-WUS monitoring occasions 510 or the second set of LP-WUS monitoring occasions 515. In other words, the network may activate DRX-related PDCCH monitoring triggered by the first set of LP-WUS monitoring occasions 510, or activate non-DRX related PDCCH monitoring triggered by the second set of LP-WUS monitoring occasions 515.
[0166] For example, upon receiving a LP-WUS via the LP-WUS monitoring occasion 510-a from the first set of LP-WUS monitoring occasions 510, the UE 115 may be configured to start an active period 520-a (e.g., DRX-related PDCCH monitoring occasion) following an offset 525-a (e.g., lp-wus-Offset) . As noted previously herein, the LP-WUS monitoring occasion 510-a may be in one slot / subframe, and the corresponding active period 520-a / PDCCH monitoring occasion may be in the subsequent slot / subframe. That is, the lp-wus-Offset (e.g., offset 525-a) may define a time where the UE 115 starts monitoring for detection of LP-WUS prior to a slot / subframe where the drx-onDurationTimer would start on the PCell or on the SpCell (e.g., lp-wus-Offset is for detecting LP-WUS associated with DRX cycle) . In some aspects, the offset 525-a (e.g., lp-wus-Offset) may be greater than the wake up time for the main radio 335 (e.g., offset 525-a provides sufficient time for the UE 115 to activate / wake up the main radio 335 prior to the active period 520-a / PDCCH monitoring occasion) . In some cases, the active period 520-a / DRX-related PDCCH monitoring occasion may start some offset 525-b (e.g., drx-SlotOffset) following the slot / subframe boundary separating the LP-WUS monitoring occasion 510-a and the active period 520-a.
[0167] As described previously herein, the UE 115 may activate / start an on-duration timer 530-a (e.g., drx-OnDurationTimer) for the active period 520-a. The UE 115 may be configured to monitor for PDCCH messages 535-a using the main radio 335 for a duration of the on-duration timer 530-a (e.g., while drx-OnDurationTimer is running) . If the UE 115 receives a PDCCH message 535-a during the active period 520-a, the UE 115 may activate / start an inactivity timer 540-a (e.g., drx-InactivityTimer) to extend the active period 520-a (e.g., extend the DRX-related PDCCH monitoring occasion) . For example, the PDCCH message 535-a may schedule another communication to be performed by the UE 115, and the UE 115 may extend the active period 520-a by activating the inactivity timer 540-a in order to perform the scheduled communication within the active period 520-a.
[0168] Referring now to the second set of LP-WUS monitoring occasions 515, the second set of LP-WUS monitoring occasions 515 may be associated with a different periodicity and different set of offsets / timers as compared to the first set of LP-monitoring occasions 510. For example, upon receiving an LP-WUS via the LP-WUS monitoring occasion 515-d, the UE 115 may be configured to start an active period 520-b some offset 525-c later, where the offset 525-c may be the same or different as compared to the offset 525-a. As noted previously herein, the offset 525-c may be based on (e.g., greater than) the time used to wake up or activate the main radio 335 of the UE 115. Further, the UE 115 may activate / start an on-duration timer 530-b (e.g., Timer A) for the active period 520-b (e.g., non-DRX related PDCCH monitoring occasion) . That is, Timer A (which may be the same or different duration as compared to drx-OnDurationTimer) may be triggered by reception of the LP-WUS via the LP-WUS monitoring occasion 515-d, and may be started some time duration (defined by offset 525-c) after LP-WUS reception.
[0169] Continuing with reference to the active period 520-b (e.g., non-DRX related PDCCH monitoring occasion) , the UE 115 may be configured to monitor for PDCCH messages 535-b using the main radio 335 for a duration of the on-duration timer 530-b (e.g., while Timer A is running) . If the UE 115 receives a PDCCH message 535-b during the active period 520-b, the UE 115 may activate / start an inactivity timer 540-b (e.g., Timer B) to extend the active period 520-a (e.g., extend the non-DRX-related PDCCH monitoring occasion) . For example, the PDCCH message 535-a may schedule another communication to be performed by the UE 115, and the UE 115 may extend the active period 520-b by activating the inactivity timer 540-b in order to perform the scheduled communication within the active period 520-b. Timer B may be the same or different duration as the drx-InactivityTimer.
[0170] With two sets of LP-WUS monitoring occasions 510, 515 configured, there may be times where there are multiple timers running. In such cases, if Timer A (on-duration timer 530-b) or Timer B (e.g., inactivity timer 540-b) is running after a start of drx-OnDurationTimer (e.g., while the on-duration timer 530-a is running) , the UE 115 may be configured to stop Timer A and / or Timer B, and operate in accordance with the drx-OnDurationTimer for a DRX-related PDCCH monitoring occasion. Similarly, if an any of the first set of LP-WUS monitoring occasions 510 associated with the DRX configuration overlap with Timer A or Timer B, the UE 115 may be expected to behave as if an LP-WUS associated with a DRX cycle is received (e.g., start the drx-OnDurationTimer associated with the next DRX cycle) . In other words, Timer A and Timer B are both stopped, and control is given to the DRX process.
[0171] In some aspects, the UE 115 may be configured / allowed to transmit periodic or semi-persistent sounding reference signal (SRS) communications and / or channel state information (CSI) reports during DRX-related PDCCH monitoring occasions, but may not transmit such SRS messages and / or CSI reports during non-DRX related PDCCH monitoring occasions. For example, the UE 115 may be allowed to transmit SRS messages and / or CSI reports during the active period 520-a (e.g., PDCCH monitoring occasion) associated with the DRX configuration, but may be configured to refrain from transmitting such SRS messages and / or CSI reports during the active period 520-b (e.g., PDCCH monitoring occasion) that is separate / independent from the DRX configuration. In some aspects, the control signaling used to configure the DRX configuration and / or respective sets of LP-WUS monitoring occasions 510, 515 may indicate whether corresponding active periods 520 / PDCCH monitoring occasions may be used to communicate different types of data or messages, such as SRSs, CSI reports, etc.
[0172] In some aspects, the UE 115 may not be expected to monitor any LP-WUS monitoring occasions 515 that occur between an LP-WUS monitoring occasion 510 from the first set of LP-WUS monitoring occasions 510 and a corresponding DRX-related PDCCH monitoring occasion. In other words, the UE 115 may not be expected to monitor any LP-WUS monitoring occasions 515 that occur during the offsets 525-a, 525-b (e.g., during lp-wus-Offset and / or drx-SlotOffset) and before the start of the on-duration timer 530-a. For example, as shown in FIG. 4, the LP-WUS monitoring occasion 515-e from the second set of LP-WUS monitoring occasions 515 may occur between the LP-WUS monitoring occasion 510-b and a corresponding active period 520 / DRX-related PDCCH monitoring occasion triggered by the LP-WUS monitoring occasion 510-b. In this regard, the UE 115 may be configured to refrain from monitoring the LP-WUS monitoring occasion 515-e based on the LP-WUS monitoring occasion 515-e occurring between the LP-WUS monitoring occasion 510-b and the corresponding DRX-related PDCCH monitoring occasion in the time domain (e.g., based on the LP-WUS monitoring occasion 515-e occurring during the offset 525-a associated with the LP-WUS monitoring occasion 510-b) .
[0173] Similarly, the UE 115 may not be expected to monitor for any LP-WUS monitoring occasions 515 that occur while the drx-onDurationTimer (e.g., on-duration timer 530-a) or the drx-InactivityTimer (e.g., inactivity timer 540-a) of the DRX configuration is running. For example, as shown in FIG. 4, the UE 115 may refrain from monitoring the LP-WUS monitoring occasion 515-b based on the LP-WUS monitoring occasion 515-b occurring while the on-duration timer 530-a is running.
[0174] FIG. 6 shows an example of a wireless communications system 600 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. In some examples, aspects of the wireless communications system 600 may implement, or be implemented by, aspects of the wireless communications system 100, the network architecture 200, the wireless communications system 300, the DRX configuration 400, the monitoring configuration 500, or any combination thereof. In particular, the wireless communications system 600 may support configurations and signaling for activating and deactivating LP-WUSs at UEs 115, and for configuring (or reconfiguring) a DRX configuration at the UEs 115 based on the activation / deactivation of LP-WUS monitoring.
[0175] The wireless communication system 600 may include a network entity 105-b, a first UE 115-b, and a second UE 115-c, which may be examples of wireless devices as described herein. For example, the network entity 105-b in FIG. 6 may be an example of the network entity 105-a in FIG. 3. Similarly, the UEs 115-b, 115-c in FIG. 6 may be examples of the UE 115-a in FIG. 3.
[0176] As described previously herein, LP-WUSs 615 may be associated with a shorter / smaller coverage area (e.g., shorter range) as compared to other PDCCH signaling. That is, the target coverage range of LP-WUSs 615 may be shorter than PDCCH range due to the simpler waveforms (e.g., OOK waveforms) used by LP-WUSs 615 (as compared to OFDM waveforms used for PDCCH) . In some cases, LP-WUSs 615 (DL signals) may have the same or similar coverage range as that of Msg3 (an UL signal) .
[0177] For example, the wireless communication system 600 may include a first coverage range 605-a associated with PDCCH communications 610 (e.g., PDCCH range) , and a second coverage range 605-b associated with LP-WUSs 615 (e.g., LP-WUS range) . As shown in FIG. 6, the second coverage range 605-b associated with LP-WUSs 615 may be smaller than the first coverage range 605-a associated with PDCCH communications 610. In this regard, the first UE 115-b may be positioned within both the first coverage range 605-a and the second coverage range 605-b, and may therefore be able to receive both PDCCH communications 610 and LP-WUSs 615 (where use of LP-WUSs 615 may enable power savings, as described herein) . Comparatively, the second UE 115-c may only be able to receive PDCCH communications 610 (as the second UE 115-c is outside of the second coverage range 605-b for LP-WUSs 615) .
[0178] In some aspects, the network entity 105-b may identify whether UEs 115 are within the respective coverage ranges 605 to determine which types of downlink signaling can / should be used. That is, the network entity 105-b may be configured to identify that the first UE 115-b is within the second coverage range 605-b, and can therefore activate / enable LP-WUSs 615 for communicating with the first UE 115-b.
[0179] In some aspects, the network entity 105-b may enable LP-WUSs 615 (e.g., the first set of LP-WUS monitoring occasions 510 associated with the DRX configuration, and the second set of LP-WUS monitoring occasions 515 that are separate from the DRX configuration) based on CSI reports received from the UEs 115, or based on explicit indications from the UEs 115 that they are positioned within (or outside of) the second coverage range 605-b for LP-WUSs 615. In other words, the first UE 115-b may be configured to inform the network entity 105-b that the first UE 115-b is within the coverage range 605-b so that the network entity 105-b can activate LP-WUSs 615 for the UE 115-b (e.g., activate LP-WUS monitoring at the UE 115-b) .
[0180] Conversely, the second UE 115-c may be configured to inform the network entity 105-b that the second UE 115-c is outside of the coverage range 605-b so that the network entity 105-b can deactivate LP-WUSs 615 for the UE 115-c (e.g., deactivate LP-WUS monitoring at the UE 115-c) . Because the second UE 115-c is outside of the coverage range 605-b for LP-WUSs 615, the network and the UE 115-c cannot rely on LP-WUS 615 to trigger PDCCH monitoring (during C-DRX active times and outside of C-DRX active times) . As such, the UE 115-c may inform the network entity 105 (or the network entity 105-b may identify / determine) that the UE 115-c is out of LP-WUS range so that resources used for LP-WUS 615 for the UE 115-c can be freed and reused for other purposes (and / or for other wireless devices) .
[0181] In this regard, the UEs 115-b, 115-c and / or the network entity 105-b may be configured to identify entry conditions and exit conditions that indicate whether or not the respective UEs 115-b, 115-c are within the second coverage range 605-b and therefore able to receive LP-WUSs 615. That is, entry / exit conditions can be configured (e.g., pre-configured at the UEs 115, signaled to the UEs 115) so that the UEs 115 can determine whether they are positioned within the coverage range 605-b. For the purposes of the present disclosure, the term “entry condition” may be used to refer to a condition or location of a UE 115 that enables the UE 115 to receive LP-WUSs 615. That is, a UE 115 may identify an entry condition when the UE 115 enters the coverage range 605-b or is otherwise able to receive LP-WUSs 615 with sufficient quality / strength (e.g., entry condition=enable LP-WUSs 615) . Comparatively, the term “exit condition” may be used to refer to a condition or location of a UE 115 that does not enable the UE 115 to receive LP-WUSs 615. That is, a UE 115 may identify an exit condition when the UE 115 exits the coverage range 605-b or is otherwise unable to receive LP-WUSs 615 with sufficient quality / strength (e.g., exit condition=disable LP-WUSs 615) .
[0182] In some aspects, entry / exit conditions may be based on measurements performed by the UEs 115-b, 115-c (e.g., measurements performed using a main radio 335) . For example, the UEs 115 may perform measurements on reference signals (e.g., synchronization signal blocks (SSBs) , CSI reference signals (CSI-RSs) , low-power synchronization signals (LP-SSs) , etc. ) received from the network entity 105-b to identify entry / exit conditions. In other words, the UEs 115 may be configured to determine whether or not they are within the second coverage range 605-b associated with LP-WUSs 615 by performing measurements on reference signals received from the network entity 105-b. For instance, the first UE 115-b may be configured to determine that it is within the coverage range 605-b based on identifying that channel quality measurements performed on reference signals received from the network entity 105-b are above some threshold. Comparatively, the second UE 115-c may be configured to determine that it is outside of the coverage range 605-b based on identifying that channel quality measurements performed on reference signals received from the network entity 105-b are below some threshold.
[0183] In some cases, upon identifying an entry condition is satisfied, the UE 115-b may switch to LP-WUS triggered PDCCH monitoring based on sending a switch request to the network entity 105-b, and / or based on the network entity 105-b sending a control message enabling / activating the switch. In other words, upon identifying that the UE 115-b is positioned within the coverage range 605-b and is able to receive LP-WUSs 615 (e.g., entry condition satisfied) , the UE 115-b may transmit a message (e.g., switch request) to the network entity 105-b. The message may indicate that the UE 115-b is within the coverage range 605-b, and a request to enable / activate LP-WUS triggered PDCCH monitoring at the UE 115-b. In some cases, the network entity 105-b may respond with control signaling that activates LP-WUSs 615 (e.g., activates LP-WUS triggered PDCCH monitoring) at (e.g., for) the UE 115-b.
[0184] In some aspects, the network may configure parameters for LP-WUS monitoring occasions upon activating LP-WUS monitoring at the UE 115-b. For example, along with the confirmation that activates LP-WUSs 615 for the first UE 115-b, the network may indicate a periodicity and / or offsets for LP-WUS monitoring occasions, respective timers for the LP-WUS monitoring occasions, etc. In some aspects, the network entity 105-b may be configured to stop transmitting LP-WUSs 615 when there are no UEs 115 positioned within the coverage range 605-b.
[0185] By way of another example, upon identifying that the UE 115-c is positioned outside of the coverage range 605-b and is unable to receive LP-WUSs 615 (e.g., exit condition satisfied) , the UE 115-c may transmit a message (e.g., switch request) to the network entity 105-b to indicate that the UE 115-c is outside the coverage range 605-b, and a request to disable / deactivate LP-WUS triggered PDCCH monitoring at the UE 115-c. The network entity 105-b may respond with control signaling that deactivates LP-WUSs 615 (e.g., deactivates LP-WUS triggered PDCCH monitoring) at (e.g., for) the UE 115-c. In this example, when the exit condition is satisfied for the second UE 115-c, the second UE 115-c may be configured to switch or fall back to legacy PDCCH monitoring based on C-DRX configuration.
[0186] In additional or alternative implementations, the UEs 115-b, 115-b may be able to make the switch (e.g., enable or disable LP-WUS triggered PDCCH monitoring) autonomously (e.g., without transmitting a switch request and / or without receiving an explicit activation / deactivation confirmation from the network entity 105-b) . Such cases may require the network entity 105-b to transmit LP-WUS 615 all the time (regardless of whether there are any UEs 115 within the coverage range 605-b) , and may require that the network configures UEs 115 with LP-WUS configurations in advance.
[0187] As noted previously herein, and as illustrated in FIG. 5, LP-WUS monitoring occasions (e.g., second set of LP-WUS monitoring occasions 515) may be used to “fill the gap” between active periods 520 of a DRX cycle. As such, when a UE 115 moves outside of the coverage range 605-b and is no longer able to receive LP-WUSs 615, this may result in longer periods between PDCCH monitoring occasions, which may increase latency at the UE 115.
[0188] Accordingly, some aspects of the present disclosure are directed to techniques for configuring (e.g., reconfiguring) parameters associated with PDCCH monitoring and / or DRX configurations based on the activation / deactivation of LP-WUS monitoring.
[0189] For example, referring to FIG. 6, when the UE 115-c goes out of range for LP-WUSs 615 (e.g., leaves the coverage range 605-b) , the network can activate PDCCH monitoring at the UE 115-c based on a C-DRX configuration at the UE 115-c (e.g., C-DRX with DCP, or C-DRX without DCP) . That is, the network entity 105-b may indicate whether DCP (e.g., DCP messages 410) are enabled in place of LP-WUSs 615 to trigger PDCCH monitoring. The indication may be part of the control signaling that provides an acknowledgement / confirmation that the UE 115-c that it is out of the coverage range 605-b for LP-WUSs 615.
[0190] Continuing with the same example, if the C-DRX configuration at the UE 115-c is not already configured for DCP, the network entity 105-b may configure parameters / characteristics for DCP messages as part of the C-DRX configuration. For instance, upon receiving a message / switch request that the UE 115-c is outside of the coverage range 605-b, the network entity 105-b may transmit control signaling that deactivates LP-WUSs 615 at the UE 115-c (e.g., deactivates LP-WUS monitoring at the UE 115-c) , and indicates resources / parameters for DCP messages that will replace the deactivated LP-WUSs 615. In some cases, resources for a set of DCP monitoring occasions (which are activated to replace the deactivated LP-WUS monitoring occasions) may be is defined in terms of a start of search-time for DCI format 2–6 with PS-RNTI relative to the start of the drx-onDurationTimer of Long DRX associated with the DRX configuration. As such, DCP parameters that may be configured by the network may include ps-Offset-r16, ps-WakeUp-r16, ps-TransmitPeriodicL1-RSRP-r16, ps-TransmitOtherPeriodicCSI-r16, and the like. For instance, ps-Offset may define the start of the search-time of DCI format 2–6 with CRC scrambled by PS-RNTI relative to the start of the drx-onDurationTimer of Long DRX, which may exhibit a value that is a multiple of 0.125 ms (milliseconds) (e.g., 1 corresponds to 0.125 ms, 2 corresponds to 0.25 ms, 3 corresponds to 0.375 ms, etc. ) .
[0191] In this regard, when the UE 115-c goes out of range of LP-WUS 615 (e.g., when the UE 115-c is outside of the coverage range 605-b) , the network may indicate deactivation of LP-WUSs 615 that trigger (additional) PDCCH monitoring outside of C-DRX active times, as shown and described in FIG. 5. However, once LP-WUS monitoring is disabled at the UE 115-c, the latency benefit provided by LP-WUS monitoring occasions may also be disabled.
[0192] For example, referring to FIG. 5, once the UE 115-c is outside the coverage range 605-b, the LP-WUS monitoring occasions 510, 515 may be disabled, which may lead to increased power savings (as the UE 115-c may no longer monitor the LP-WUS monitoring occasions 510, 515) . However, the deactivation of the LP-WUS monitoring occasions 510, 515 may also lead to increased latency, as the network may have to wait until the next active period 520-a of the DRX configuration (e.g., wait until the next DRX period 505) to message the UE 115-c. This power saving at the expense of longer latency may not be acceptable in some situations.
[0193] Accordingly, upon deactivating LP-WUS monitoring at the UE 115-c, the network may reconfigure a C-DRX configuration at the UE 115-c to reduce latency (by foregoing some power saving) . That is, the network may configure (or reconfigure) parameters / characteristics of a DRX configuration at the UE 115-c based on deactivating LP-WUSs 615 (e.g., disabling LP-WUS monitoring) at the UE 115-c. In particular, the DRX cycle length at the UE 115-c may be adjusted to a shorter value (by changing drxLongCycleStartOffset) and drx-OnDurationTimer may be adjusted to longer value. For example, the network may adjust (e.g., reduce) a periodicity of DCP monitoring occasions and / or increase an on-duration timer associated with active periods 520 of a DRX configuration based on deactivating the LP-WUSs 615. In other words, the network may configure / reconfigure parameters for PDCCH monitoring and / or parameters of a DRX configuration to provide more frequent and / or longer PDCCH monitoring opportunities that “fill the gap” caused by deactivation of the LP-WUS monitoring occasions 510, 515.
[0194] For instance, the UE 115-c may initially be configured with a DRX configuration associated with an initial set of parameters (e.g., initial drxLongCycleStartOffset, initial drx-OnDurationTimer, initial periodicity of DCP monitoring occasions) . Subsequently, the UE 115-b may leave the coverage range 605-b, and the network may deactivate the LP-WUSs 615 at the UE 115-b. In order to “fill the gaps” caused by deactivation f the LP-WUSs 615, the network may also reconfigure or overwrite the parameters of the DRX configuration. For example, the control signaling that deactivates the LP-WUSs 615 may also indicate a new set of parameters for the DRX configuration based on the deactivation of the LP-WUSs 615. For instance, the network may configure the UE 115-c with a longer drx- OnDurationTimer 530-a, a shorter periodicity between monitoring occasions for DCP messages 410, or both.
[0195] In some cases, instead of “reconfiguring” parameters of the DRX configuration (e.g., reconfiguring or overwriting drxLongCycleStartOffset and drx-OnDurationTimer) , the network may instead configured UEs 115 with separate sets of parameters for the DRX configuration that are to be used based on whether or not LP-WUSs 615 are activated at the UEs 115 or not. For example, the UE 115-c may receive control signaling (e.g., RRC signaling) that indicates a first set of parameters for a DRX configuration that are to be used when LP-WUSs 615 are activated for the UE 115-c (e.g., drxLongCycleStartOffset1, drx-OnDurationTimer1, DCP-periodicity1) , and a second set of parameters for the DRX configuration or DCP configuration that are to be used when LP-WUSs 615 are deactivated for the UE 115-c (e.g., drxLongCycleStartOffsetw, drx-OnDurationTimer2, DCP-periodicity2, ps-Offset-r16-2, ps-WakeUp-r16-2, psTransmitPeriodicL1-RSRP-r16-2, ps-TransmitOtherPeriodicCSI-r16-2) . In this regard, the UE 115-c may be configured to use the first set of parameters when the UE 115-c is within the coverage range 605-b (e.g., when LP-WUSs 615 are activated) , and may be configured to use the second set of parameters when the UE 115-c is outside the coverage range 605-b (e.g., when LP-WUSs 615 are deactivated) . In such cases, the control signaling from the network that deactivates the LP-WUSs 615 at the UE 115-c may indicate for the UE 115-c to use (e.g., switch to) the second set of parameters based on the deactivation of the LP-WUSs 615.
[0196] Signaling used to activate / deactivate LP-WUS monitoring, and for configuring (e.g., reconfiguring) DRX parameters is further shown and described in FIG. 7.
[0197] FIG. 7 shows an example of a process flow 700 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. In some examples, aspects of the process flow 700 may implement, or be implemented by, aspects of the wireless communications system 100, the network architecture 200, the wireless communications system 300, the DRX configuration 400, the monitoring configuration 500, the wireless communications system 600, or any combination thereof. In particular, the process flow 700 illustrates configurations and signaling for activating and deactivating LP-WUSs at a UE 115-d, and for configuring (or reconfiguring) a DRX configuration at the UE 115-d based on the activation / deactivation of LP-WUS monitoring.
[0198] The process flow 700 includes a network entity 105-c and a UE 115-d, which may be examples of wireless devices as described herein. For example, the network entity 105-c and the UE 115-d illustrated in FIG. 7 may include examples of the network entities 105-a, 105-b and the UEs 115-a, 115-b, 115-c, respectively, as illustrated in FIGs. 3 and 6.
[0199] In some examples, the operations illustrated in process flow 700 may be performed by hardware (e.g., including circuitry, processing blocks, logic components, and other components) , code (e.g., software or firmware) executed by a processor, or any combination thereof. Alternative examples of the following may be implemented, where some steps are performed in a different order than described or are not performed at all. In some cases, steps may include additional features not mentioned below, or further steps may be added.
[0200] At 705, the UE 115-d may receive control signaling (e.g., RRC message (s) ) that configures the UE 115-d with a DRX configuration (e.g., C-DRX configuration) , a set of LP-WUS monitoring occasions, or both. For example, the control signaling may configure the first set of LP-WUS monitoring occasions 510 associated with the DRX configuration, and the second set of LP-WUS monitoring occasions 515 that are separate from the DRX configuration.
[0201] In some cases, the control signaling may indicate an initial set of parameters for the DRX configuration. In additional or alternative implementations, the control signaling may indicate separate sets of parameters for the DRX configuration that are to be used based on whether or not LP-WUSs are activated at the UE 115-d or not. For example, control signaling (e.g., RRC signaling) may indicate a first set of parameters for the DRX configuration that are to be used when LP-WUSs are activated for the UE 115-d (e.g., drxLongCycleStartOffset1, drx-OnDurationTimer1, DCP-periodicity1) , and a second set of parameters for the DRX and / or DCP configuration that are to be used when LP-WUSs are deactivated for the UE 115-d (e.g., drxLongCycleStartOffsetw, drx-OnDurationTimer2, DCP-periodicity2, ps-Offset-16-2) .
[0202] At 710, the UE 115-d may monitor LP-WUS monitoring occasions. In particular, the UE 115-d may monitor the set of LP-WUS monitoring occasions while the UE 115-d is positioned within a coverage range 605-b associated with LP-WUSs. The UE 115-b may monitor the LP-WUS monitoring occasions at 710 based on receiving / being configured with the set of LP-WUS monitoring occasions at 705.
[0203] At 715, the UE 115-d may receive LP-WUSs via the LP-WUS monitoring occasions. In particular, the UE 115-d may receive the LP-WUSs using an LP-WUR while the UE 115-d is positioned within a coverage range 605-b associated with LP-WUSs. The UE 115-b may receive the LP-WUSs at 715 based on monitoring the LP-WUS monitoring occasions at 710, receiving the control signaling at 705, or both.
[0204] At 720, the UE 115-d may receive reference signals from the network entity 105-c. The reference signals may include SSBs, CSI-RSs, LP-SSs, or any combination thereof. The UE 115-d may receive the reference signals using a main radio, an LP-WUR, or both.
[0205] At 725, the UE 115-d may perform measurements on the received reference signals. The measurements may include any channel quality measurement, such as RSRP, RSRQ, CQI, and the like.
[0206] At 730, the UE 115-d may identify an exit condition associated with the coverage area for the LP-WUSs. In other words, as shown and described in FIG. 6, the UE 115-d may determine that the UE 115-d is no longer positioned within the coverage range 605-b, and is therefore unable to receive LP-WUSs. In this regard, the UE 115-d may use the measurements performed at 725 to identify entry / exit conditions for LP-WUSs (e.g., to identify whether the UE 115-d is positioned within the coverage range 605-b and able to receive LP-WUSs) .
[0207] At 735, the UE 115-d may transmit a message (e.g., switch request) to the network entity 105-c. The message may include an indication that the UE 115-d is located outside the coverage range 605-b for LP-WUSs, and is therefore unable to receive LP-WUSs. In other words, the message may indicate the exit condition identified at 730.
[0208] At 740, the UE 115-d may receive control signaling (e.g., RRC, DCI, MAC-CE) that deactivates LP-WUSs at the UE 115-d (e.g., deactivates LP-WUS monitoring occasions for the UE 115-d) . The UE 115-d may receive the control signaling based on (e.g., in response to) the message at 735.
[0209] In some aspects, the control signaling may also indicate (e.g., configure, reconfigure) parameters for the DRX configuration at the UE 115-d based on the deactivation of the LP-WUSs. In other words, the control signaling may indicate new parameters that replace or overwrite initial / original parameters for the DRX configuration. For example, the control signaling may reconfigure (e.g., overwrite) parameters for the C-DRX configuration that were configured at 705 based on deactivating LP-WUSs (e.g., disabling LP-WUS monitoring) at the UE 115-c. In particular, the DRX cycle length at the UE 115-d may be adjusted to a shorter value (by changing drxLongCycleStartOffset) and drx-OnDurationTimer may be adjusted to longer value. For example, the network may enable DCP and / or adjust (e.g., reduce) a periodicity of DCP monitoring occasions and / or increase an on-duration timer associated with active periods 520 of a DRX configuration based on deactivating the LP-WUSs. In other words, the network may configure / reconfigure parameters for PDCCH monitoring and / or parameters of a DRX configuration to provide more frequent and / or longer PDCCH monitoring opportunities that “fill the gap” caused by deactivation of the LP-WUS monitoring occasions 510, 515.
[0210] In other cases where the control signaling at 705 configures separate sets of parameters for the DRX configuration based on whether or not LP-WUSs are activated, the control signaling at 740 may indicate for the UE 115-d to switch to a different set of parameters based on the deactivation of the LP-WUSs. For example, the control signaling at 705 (e.g., RRC signaling) may indicated a first set of parameters for the DRX configuration that are to be used when LP-WUSs are activated for the UE 115-d (e.g., drxLongCycleStartOffset1, drx-OnDurationTimer1, DCP-periodicity1) , and a second set of parameters for the DRX and / or DCP configuration that are to be used when LP-WUSs are deactivated for the UE 115-d (e.g., drxLongCycleStartOffsetw, drx-OnDurationTimer2, DCP-periodicity2, ps-Offset-r16-2) . In this example, the control signaling at 740 (e.g., DCI, MAC-CE) may indicate for the UE 115-d to switch to the second set of parameters based on the deactivation of the LP-WUSs.
[0211] At 745, the UE 115-d may monitor PDCCH monitoring occasions associated with the DRX configuration. For example, the UE 115-d may monitor DCP monitoring occasions and / or active periods 420 of the DRX configuration, as shown in FIG. 4. The UE 115-d may monitor the PDCCH monitoring occasions at 745 using the main radio of the UE 115-d based on receiving the deactivation of the LP-WUSs at 740. Moreover, the UE 115-d may monitor the PDCCH monitoring occasions based on (e.g., in accordance with) the parameters for the DRX configuration which were indicated via the control signaling at 740.
[0212] At 750, the UE 115-d may receive PDCCH messages (e.g., DCP messages 410) from the network entity 105-c. The UE 115-d may receive the PDCCH messages at 750 via the PDCCH monitoring occasions. As described previously herein, DCP messages 410 may be used to trigger active periods of the DRX configuration.
[0213] At 755, the UE 115-d may identify an entry condition associated with the coverage area for the LP-WUSs. In other words, as shown and described in FIG. 6, the UE 115-d may determine that the UE 115-d is positioned within the coverage range 605-b, and is therefore able to receive LP-WUSs. In some aspects, the UE 115-d may identify the entry condition based on measurements performed on reference signals received from the network at 720 and 725. In this regard, the UE 115-d may use the measurements performed at 725 to identify entry / exit conditions for LP-WUSs (e.g., to identify whether the UE 115-d is positioned within the coverage range 605-b and able to receive LP-WUSs) .
[0214] At 760, the UE 115-d may transmit a message (e.g., switch request) to the network entity 105-c. The message may include an indication that the UE 115-d is located within the coverage range 605-b for LP-WUSs, and is therefore able to receive LP-WUSs. In other words, the message may indicate the entry condition identified at 755.
[0215] At 765, the UE 115-d may receive control signaling (e.g., RRC, DCI, MAC-CE) that activates LP-WUSs at the UE 115-d (e.g., activates LP-WUS monitoring occasions for the UE 115-d) . The UE 115-d may receive the control signaling based on (e.g., in response to) the message at 740.
[0216] In some aspects, the control signaling at 765 may also indicate (e.g., configure, reconfigure) parameters for the DRX configuration at the UE 115-d and / or parameters of the activated LP-WUS monitoring occasions based on the activation of the LP-WUSs. In other words, the control signaling may indicate new parameters that replace or overwrite initial / original parameters for the DRX configuration, and / or new parameters for the activated LP-WUSs. For example, the control signaling may reconfigure (e.g., overwrite) parameters for the C-DRX configuration that were configured at 705 and / or at 740 based on activating LP-WUSs (e.g., enabling LP-WUS monitoring) at the UE 115-d. For example, the network may disable DCP and / or adjust (e.g., increase) a periodicity of DCP monitoring occasions and / or decrease an on-duration timer associated with active periods 520 of a DRX configuration based on activating the LP-WUSs.
[0217] In other cases where the control signaling at 705 configures separate sets of parameters for the DRX configuration based on whether or not LP-WUSs are activated, the control signaling at 740 may indicate for the UE 115-d to switch to a different set of parameters based on the activation of the LP-WUSs. For example, the control signaling at 705 (e.g., RRC signaling) may indicated a first set of parameters for the DRX configuration that are to be used when LP-WUSs are activated for the UE 115-d (e.g., drxLongCycleStartOffset1, drx-OnDurationTimer1, DCP-periodicity1) , and a second set of parameters for the DRX configuration that are to be used when LP-WUSs are deactivated for the UE 115-d (e.g., drxLongCycleStartOffsetw, drx-OnDurationTimer2, DCP-periodicity2) . In this example, the control signaling at 765 (e.g., DCI, MAC-CE) may indicate for the UE 115-d to switch back to the first set of parameters based on the activation of the LP-WUSs.
[0218] At 770, the UE 115-d may monitor the activated LP-WUS monitoring occasions based on the activation of the LP-WUSs at 765. The UE 115-d may monitor the LP-WUS monitoring occasions at 770 using the LP-WUR based on (e.g., in accordance with) the parameters for the LP-WUS monitoring occasions which were indicated via the control signaling at 765.
[0219] FIG. 8 shows a block diagram 800 of a device 805 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. The device 805 may be an example of aspects of a UE 115 as described herein. The device 805 may include a receiver 810, a transmitter 815, and a communications manager 820. The device 805, or one or more components of the device 805 (e.g., the receiver 810, the transmitter 815, the communications manager 820) , may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0220] The receiver 810 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 reconfiguration of C-DRX upon deactivation of LP-WUSs) . Information may be passed on to other components of the device 805. The receiver 810 may utilize a single antenna or a set of multiple antennas.
[0221] The transmitter 815 may provide a means for transmitting signals generated by other components of the device 805. For example, the transmitter 815 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 reconfiguration of C-DRX upon deactivation of LP-WUSs) . In some examples, the transmitter 815 may be co-located with a receiver 810 in a transceiver module. The transmitter 815 may utilize a single antenna or a set of multiple antennas.
[0222] The communications manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof may be examples of means for performing various aspects of reconfiguration of C-DRX upon deactivation of LP-WUSs as described herein. For example, the communications manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof may be capable of performing one or more of the functions described herein.
[0223] In some examples, the communications manager 820, the receiver 810, the transmitter 815, 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) .
[0224] Additionally, or alternatively, the communications manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code) . If implemented in code executed by at least one processor, the functions of the communications manager 820, the receiver 810, the transmitter 815, 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) .
[0225] In some examples, the communications manager 820 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 810, the transmitter 815, or both. For example, the communications manager 820 may receive information from the receiver 810, send information to the transmitter 815, or be integrated in combination with the receiver 810, the transmitter 815, or both to obtain information, output information, or perform various other operations as described herein.
[0226] For example, the communications manager 820 is capable of, configured to, or operable to support a means for monitoring a set of LP-WUS monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE. The communications manager 820 is capable of, configured to, or operable to support a means for transmitting, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs. The communications manager 820 is capable of, configured to, or operable to support a means for receiving, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is received based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs. The communications manager 820 is capable of, configured to, or operable to support a means for monitoring a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0227] By including or configuring the communications manager 820 in accordance with examples as described herein, the device 805 (e.g., at least one processor controlling or otherwise coupled with the receiver 810, the transmitter 815, the communications manager 820, or a combination thereof) may support techniques that enable the network to activate and deactivate LP-WUSs at the UE 115 based on whether or not the UE 115 is within a coverage range of the LP-WUSs. As such, aspects of the present disclosure may prevent the UE 115 from monitoring LP-WUS monitoring occasions when the UE 115 is unable to receive LP-WUSs, thereby reducing power consumption at the UE 115 and improving battery performance at the UE 115. Additionally, aspects of the present disclosure enable the network to configure (or reconfigure) a DRX configuration and associated PDCCH monitoring based on the activation and deactivation of LP-WUSs. In this regard, aspects of the present disclosure may enable the network to tailor DRX-related PDCCH monitoring based on whether or not the UE 115 is able to perform LP-WUS-based monitoring, which may reduce a latency of wireless communications at the UE.
[0228] FIG. 9 shows a block diagram 900 of a device 905 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. The device 905 may be an example of aspects of a device 805 or a UE 115 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 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) .
[0229] The receiver 910 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 reconfiguration of C-DRX upon deactivation of LP-WUSs) . Information may be passed on to other components of the device 905. The receiver 910 may utilize a single antenna or a set of multiple antennas.
[0230] The transmitter 915 may provide a means for transmitting signals generated by other components of the device 905. For example, the transmitter 915 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 reconfiguration of C-DRX upon deactivation of LP-WUSs) . In some examples, the transmitter 915 may be co-located with a receiver 910 in a transceiver module. The transmitter 915 may utilize a single antenna or a set of multiple antennas.
[0231] The device 905, or various components thereof, may be an example of means for performing various aspects of reconfiguration of C-DRX upon deactivation of LP-WUSs as described herein. For example, the communications manager 920 may include an LP-WUS monitoring component 925, an uplink message transmitting component 930, a control signaling receiving component 935, a PDCCH monitoring component 940, or any combination thereof. The communications manager 920 may be an example of aspects of a communications manager 820 as described herein. In some examples, the communications manager 920, 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 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.
[0232] The LP-WUS monitoring component 925 is capable of, configured to, or operable to support a means for monitoring a set of LP-WUS monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE. The uplink message transmitting component 930 is capable of, configured to, or operable to support a means for transmitting, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs. The control signaling receiving component 935 is capable of, configured to, or operable to support a means for receiving, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is received based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs. The PDCCH monitoring component 940 is capable of, configured to, or operable to support a means for monitoring a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0233] FIG. 10 shows a block diagram 1000 of a communications manager 1020 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. The communications manager 1020 may be an example of aspects of a communications manager 820, a communications manager 920, or both, as described herein. The communications manager 1020, or various components thereof, may be an example of means for performing various aspects of reconfiguration of C-DRX upon deactivation of LP-WUSs as described herein. For example, the communications manager 1020 may include an LP-WUS monitoring component 1025, an uplink message transmitting component 1030, a control signaling receiving component 1035, a PDCCH monitoring component 1040, an RRC receiving component 1045, a reference signal measurement component 1050, 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) .
[0234] The LP-WUS monitoring component 1025 is capable of, configured to, or operable to support a means for monitoring a set of LP-WUS monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE. The uplink message transmitting component 1030 is capable of, configured to, or operable to support a means for transmitting, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs. The control signaling receiving component 1035 is capable of, configured to, or operable to support a means for receiving, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is received based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs. The PDCCH monitoring component 1040 is capable of, configured to, or operable to support a means for monitoring a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0235] In some examples, the RRC receiving component 1045 is capable of, configured to, or operable to support a means for receiving, from the network entity, RRC signaling indicating a first set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions are enabled, and a second set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions are disabled, where the control signaling indicates the second set of parameters based on the deactivation of the set of LP-WUS monitoring occasions.
[0236] In some examples, the first set of parameters includes a first periodicity and first subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a first on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, or both. In some examples, the second set of parameters includes a second periodicity and a second subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a second on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, or both.
[0237] In some examples, the RRC receiving component 1045 is capable of, configured to, or operable to support a means for receiving, from the network entity, RRC signaling that indicates an initial set of parameters associated with the DRX configuration, where the set of parameters indicated via the control signaling includes a modification or reconfiguration of the initial set of parameters of the DRX configuration.
[0238] In some examples, the initial set of parameters indicated via the RRC signaling includes a first periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration. In some examples, the set of parameters indicated via the control signaling includes a second periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration.
[0239] In some examples, the second periodicity is shorter than the first periodicity based on the deactivation of the set of LP-WUS monitoring occasions.
[0240] In some examples, the initial set of parameters indicated via the RRC signaling includes a first on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration. In some examples, the set of parameters indicated via the control signaling includes a second on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration. In some examples, the second on-duration timer is longer than the first on-duration timer based on the deactivation of the set of LP-WUS monitoring occasions.
[0241] In some examples, the set of parameters include resources for a set of DCP monitoring occasions associated with the DRX configuration. In some examples, monitoring the set of downlink control channel monitoring occasions associated with the DRX configuration includes monitoring the set of DCP monitoring occasions.
[0242] In some examples, the reference signal measurement component 1050 is capable of, configured to, or operable to support a means for performing measurements for reference signals received from the network entity, where the message indicating that the UE is out of the coverage range associated with the LP-WUSs is transmitted based on the measurements.
[0243] In some examples, the set of LP-WUS monitoring occasions is associated with the DRX configuration to trigger the set of downlink control channel monitoring occasions of the DRX configuration.
[0244] In some examples, the set of LP-WUS monitoring occasions are monitored to trigger an additional set of downlink control channel monitoring occasions that are separate from the DRX configuration.
[0245] In some examples, the LP-WUSs are associated with an OOK waveform.
[0246] In some examples, monitoring the set of LP-WUS monitoring occasions is performed using a LP-WUR of the UE. In some examples, monitoring the set of downlink control channel monitoring occasions is performed using a main radio of the UE.
[0247] FIG. 11 shows a diagram of a system 1100 including a device 1105 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. The device 1105 may be an example of or include components of a device 805, a device 905, or a UE 115 as described herein. The device 1105 may communicate (e.g., wirelessly) with one or more other devices (e.g., network entities 105, UEs 115, or a combination thereof) . The device 1105 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 1120, an input / output (I / O) controller, such as an I / O controller 1110, a transceiver 1115, one or more antennas 1125, at least one memory 1130, code 1135, and at least one processor 1140. 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 1145) .
[0248] The I / O controller 1110 may manage input and output signals for the device 1105. The I / O controller 1110 may also manage peripherals not integrated into the device 1105. In some cases, the I / O controller 1110 may represent a physical connection or port to an external peripheral. In some cases, the I / O controller 1110 may utilize an operating system such as or another known operating system. Additionally, or alternatively, the I / O controller 1110 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I / O controller 1110 may be implemented as part of one or more processors, such as the at least one processor 1140. In some cases, a user may interact with the device 1105 via the I / O controller 1110 or via hardware components controlled by the I / O controller 1110.
[0249] In some cases, the device 1105 may include a single antenna. However, in some other cases, the device 1105 may have more than one antenna, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 1115 may communicate bi-directionally via the one or more antennas 1125 using wired or wireless links as described herein. For example, the transceiver 1115 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1115 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 1125 for transmission, and to demodulate packets received from the one or more antennas 1125. The transceiver 1115, or the transceiver 1115 and one or more antennas 1125, may be an example of a transmitter 815, a transmitter 915, a receiver 810, a receiver 910, or any combination thereof or component thereof, as described herein.
[0250] The at least one memory 1130 may include random access memory (RAM) and read-only memory (ROM) . The at least one memory 1130 may store computer-readable, computer-executable, or processor-executable code, such as the code 1135. The code 1135 may include instructions that, when executed by the at least one processor 1140, cause the device 1105 to perform various functions described herein. The code 1135 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1135 may not be directly executable by the at least one processor 1140 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1130 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.
[0251] The at least one processor 1140 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 1140 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 1140. The at least one processor 1140 may be configured to execute computer-readable instructions stored in a memory (e.g., the at least one memory 1130) to cause the device 1105 to perform various functions (e.g., functions or tasks supporting reconfiguration of C-DRX upon deactivation of LP-WUSs) . For example, the device 1105 or a component of the device 1105 may include at least one processor 1140 and at least one memory 1130 coupled with or to the at least one processor 1140, the at least one processor 1140 and the at least one memory 1130 configured to perform various functions described herein.
[0252] In some examples, the at least one processor 1140 may include multiple processors and the at least one memory 1130 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 1140 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 1140) and memory circuitry (which may include the at least one memory 1130) ) , 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 1140 or a processing system including the at least one processor 1140 may be configured to, configurable to, or operable to cause the device 1105 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 1135 (e.g., processor-executable code) stored in the at least one memory 1130 or otherwise, to perform one or more of the functions described herein.
[0253] For example, the communications manager 1120 is capable of, configured to, or operable to support a means for monitoring a set of LP-WUS monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE. The communications manager 1120 is capable of, configured to, or operable to support a means for transmitting, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs. The communications manager 1120 is capable of, configured to, or operable to support a means for receiving, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is received based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs. The communications manager 1120 is capable of, configured to, or operable to support a means for monitoring a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0254] By including or configuring the communications manager 1120 in accordance with examples as described herein, the device 1105 may support techniques that enable the network to activate and deactivate LP-WUSs at the UE 115 based on whether or not the UE 115 is within a coverage range of the LP-WUSs. As such, aspects of the present disclosure may prevent the UE 115 from monitoring LP-WUS monitoring occasions when the UE 115 is unable to receive LP-WUSs, thereby reducing power consumption at the UE 115 and improving battery performance at the UE 115. Additionally, aspects of the present disclosure enable the network to configure (or reconfigure) a DRX configuration and associated PDCCH monitoring based on the activation and deactivation of LP-WUSs. In this regard, aspects of the present disclosure may enable the network to tailor DRX-related PDCCH monitoring based on whether or not the UE 115 is able to perform LP-WUS-based monitoring, which may reduce a latency of wireless communications at the UE.
[0255] In some examples, the communications manager 1120 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 1115, the one or more antennas 1125, or any combination thereof. Although the communications manager 1120 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1120 may be supported by or performed by the at least one processor 1140, the at least one memory 1130, the code 1135, or any combination thereof. For example, the code 1135 may include instructions executable by the at least one processor 1140 to cause the device 1105 to perform various aspects of reconfiguration of C-DRX upon deactivation of LP-WUSs as described herein, or the at least one processor 1140 and the at least one memory 1130 may be otherwise configured to, individually or collectively, perform or support such operations.
[0256] FIG. 12 shows a block diagram 1200 of a device 1205 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. The device 1205 may be an example of aspects of a network entity 105 as described herein. The device 1205 may include a receiver 1210, a transmitter 1215, and a communications manager 1220. The device 1205, or one or more components of the device 1205 (e.g., the receiver 1210, the transmitter 1215, the communications manager 1220) , may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0257] The receiver 1210 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 1205. In some examples, the receiver 1210 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 1210 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.
[0258] The transmitter 1215 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1205. For example, the transmitter 1215 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 1215 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1215 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 1215 and the receiver 1210 may be co-located in a transceiver, which may include or be coupled with a modem.
[0259] The communications manager 1220, the receiver 1210, the transmitter 1215, or various combinations or components thereof may be examples of means for performing various aspects of reconfiguration of C-DRX upon deactivation of LP-WUSs as described herein. For example, the communications manager 1220, the receiver 1210, the transmitter 1215, or various combinations or components thereof may be capable of performing one or more of the functions described herein.
[0260] In some examples, the communications manager 1220, the receiver 1210, the transmitter 1215, 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) .
[0261] Additionally, or alternatively, the communications manager 1220, the receiver 1210, the transmitter 1215, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code) . If implemented in code executed by at least one processor, the functions of the communications manager 1220, the receiver 1210, the transmitter 1215, 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) .
[0262] 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 receiver 1210, the transmitter 1215, or both. For example, the communications manager 1220 may receive information from the receiver 1210, send information to the transmitter 1215, or be integrated in combination with the receiver 1210, the transmitter 1215, or both to obtain information, output information, or perform various other operations as described herein.
[0263] For example, the communications manager 1220 is capable of, configured to, or operable to support a means for transmitting a set of LP-WUSs via a set of LP-WUS monitoring occasions to trigger downlink control channel monitoring occasions at a UE. The communications manager 1220 is capable of, configured to, or operable to support a means for receiving a message indicating that the UE is out of a coverage range associated with the LP-WUSs. The communications manager 1220 is capable of, configured to, or operable to support a means for transmitting control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is transmitted based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs. The communications manager 1220 is capable of, configured to, or operable to support a means for transmitting downlink signals via a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0264] By including or configuring the communications manager 1220 in accordance with examples as described herein, the device 1205 (e.g., at least one processor controlling or otherwise coupled with the receiver 1210, the transmitter 1215, the communications manager 1220, or a combination thereof) may support techniques that enable the network to activate and deactivate LP-WUSs at the UE 115 based on whether or not the UE 115 is within a coverage range of the LP-WUSs. As such, aspects of the present disclosure may prevent the UE 115 from monitoring LP-WUS monitoring occasions when the UE 115 is unable to receive LP-WUSs, thereby reducing power consumption at the UE 115 and improving battery performance at the UE 115. Additionally, aspects of the present disclosure enable the network to configure (or reconfigure) a DRX configuration and associated PDCCH monitoring based on the activation and deactivation of LP-WUSs. In this regard, aspects of the present disclosure may enable the network to tailor DRX-related PDCCH monitoring based on whether or not the UE 115 is able to perform LP-WUS-based monitoring, which may reduce a latency of wireless communications at the UE.
[0265] FIG. 13 shows a block diagram 1300 of a device 1305 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. The device 1305 may be an example of aspects of a device 1205 or a network entity 105 as described herein. The device 1305 may include a receiver 1310, a transmitter 1315, and a communications manager 1320. The device 1305, or one or more components of the device 1305 (e.g., the receiver 1310, the transmitter 1315, the communications manager 1320) , may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0266] The receiver 1310 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 1305. In some examples, the receiver 1310 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 1310 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.
[0267] The transmitter 1315 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1305. For example, the transmitter 1315 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 1315 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1315 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 1315 and the receiver 1310 may be co-located in a transceiver, which may include or be coupled with a modem.
[0268] The device 1305, or various components thereof, may be an example of means for performing various aspects of reconfiguration of C-DRX upon deactivation of LP-WUSs as described herein. For example, the communications manager 1320 may include an LP-WUS transmitting component 1325, an uplink message receiving component 1330, a control signaling transmitting component 1335, a PDCCH transmitting component 1340, or any combination thereof. The communications manager 1320 may be an example of aspects of a communications manager 1220 as described herein. In some examples, the communications manager 1320, 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 1310, the transmitter 1315, or both. For example, the communications manager 1320 may receive information from the receiver 1310, send information to the transmitter 1315, or be integrated in combination with the receiver 1310, the transmitter 1315, or both to obtain information, output information, or perform various other operations as described herein.
[0269] The LP-WUS transmitting component 1325 is capable of, configured to, or operable to support a means for transmitting a set of LP-WUSs via a set of LP-WUS monitoring occasions to trigger downlink control channel monitoring occasions at a UE. The uplink message receiving component 1330 is capable of, configured to, or operable to support a means for receiving a message indicating that the UE is out of a coverage range associated with the LP-WUSs. The control signaling transmitting component 1335 is capable of, configured to, or operable to support a means for transmitting control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is transmitted based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs. The PDCCH transmitting component 1340 is capable of, configured to, or operable to support a means for transmitting downlink signals via a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0270] FIG. 14 shows a block diagram 1400 of a communications manager 1420 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. The communications manager 1420 may be an example of aspects of a communications manager 1220, a communications manager 1320, or both, as described herein. The communications manager 1420, or various components thereof, may be an example of means for performing various aspects of reconfiguration of C-DRX upon deactivation of LP-WUSs as described herein. For example, the communications manager 1420 may include an LP-WUS transmitting component 1425, an uplink message receiving component 1430, a control signaling transmitting component 1435, a PDCCH transmitting component 1440, an RRC transmitting component 1445, 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.
[0271] The LP-WUS transmitting component 1425 is capable of, configured to, or operable to support a means for transmitting a set of LP-WUSs via a set of LP-WUS monitoring occasions to trigger downlink control channel monitoring occasions at a UE. The uplink message receiving component 1430 is capable of, configured to, or operable to support a means for receiving a message indicating that the UE is out of a coverage range associated with the LP-WUSs. The control signaling transmitting component 1435 is capable of, configured to, or operable to support a means for transmitting control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is transmitted based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs. The PDCCH transmitting component 1440 is capable of, configured to, or operable to support a means for transmitting downlink signals via a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0272] In some examples, the RRC transmitting component 1445 is capable of, configured to, or operable to support a means for transmitting RRC signaling indicating a first set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions are enabled, and a second set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions are disabled, where the control signaling indicates the second set of parameters based on the deactivation of the set of LP-WUS monitoring occasions.
[0273] In some examples, the first set of parameters includes a first periodicity and a first subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a first on-duration timer associated with the set of downlink control channel monitoring occasions associated with the DRX configuration, or both. In some examples, the second set of parameters includes a second periodicity and a second subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a second on-duration timer associated with the set of downlink control channel monitoring occasions associated with the DRX configuration, or both.
[0274] In some examples, the RRC transmitting component 1445 is capable of, configured to, or operable to support a means for transmitting RRC signaling that indicates an initial set of parameters associated with the DRX configuration, where the set of parameters indicated via the control signaling includes a modification or reconfiguration of the initial set of parameters of the DRX configuration.
[0275] In some examples, the initial set of parameters indicated via the RRC signaling includes a first periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration. In some examples, the set of parameters indicated via the control signaling includes a second periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration.
[0276] In some examples, the second periodicity is shorter than the first periodicity based on the deactivation of the set of LP-WUS monitoring occasions.
[0277] In some examples, the initial set of parameters indicated via the RRC signaling includes a first on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration. In some examples, the set of parameters indicated via the control signaling includes a second on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration. In some examples, the second on-duration timer is longer than the first on-duration timer based on the deactivation of the set of LP-WUS monitoring occasions.
[0278] In some examples, the set of parameters include resources for a set of DCP monitoring occasions associated with the DRX configuration. In some examples, the downlink signals are transmitted via the set of DCP monitoring occasions.
[0279] In some examples, the set of LP-WUS monitoring occasions is associated with the DRX configuration to trigger the set of downlink control channel monitoring occasions of the DRX configuration.
[0280] In some examples, the set of LP-WUSs are transmitted via the set of LP-WUS monitoring occasions to trigger an additional set of downlink control channel monitoring occasions that are separate from the DRX configuration.
[0281] In some examples, the set of LP-WUSs are associated with an OOK waveform.
[0282] FIG. 15 shows a diagram of a system 1500 including a device 1505 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. The device 1505 may be an example of or include components of a device 1205, a device 1305, or a network entity 105 as described herein. The device 1505 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 1505 may include components that support outputting and obtaining communications, such as a communications manager 1520, a transceiver 1510, one or more antennas 1515, at least one memory 1525, code 1530, and at least one processor 1535. 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 1540) .
[0283] The transceiver 1510 may support bi-directional communications via wired links, wireless links, or both as described herein. In some examples, the transceiver 1510 may include a wired transceiver and may communicate bi-directionally with another wired transceiver. Additionally, or alternatively, in some examples, the transceiver 1510 may include a wireless transceiver and may communicate bi-directionally with another wireless transceiver. In some examples, the device 1505 may include one or more antennas 1515, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently) . The transceiver 1510 may also include a modem to modulate signals, to provide the modulated signals for transmission (e.g., by one or more antennas 1515, by a wired transmitter) , to receive modulated signals (e.g., from one or more antennas 1515, from a wired receiver) , and to demodulate signals. In some implementations, the transceiver 1510 may include one or more interfaces, such as one or more interfaces coupled with the one or more antennas 1515 that are configured to support various receiving or obtaining operations, or one or more interfaces coupled with the one or more antennas 1515 that are configured to support various transmitting or outputting operations, or a combination thereof. In some implementations, the transceiver 1510 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 1510, or the transceiver 1510 and the one or more antennas 1515, or the transceiver 1510 and the one or more antennas 1515 and one or more processors or one or more memory components (e.g., the at least one processor 1535, the at least one memory 1525, or both) , may be included in a chip or chip assembly that is installed in the device 1505. In some examples, the transceiver 1510 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) .
[0284] The at least one memory 1525 may include RAM, ROM, or any combination thereof. The at least one memory 1525 may store computer-readable, computer-executable, or processor-executable code, such as the code 1530. The code 1530 may include instructions that, when executed by one or more of the at least one processor 1535, cause the device 1505 to perform various functions described herein. The code 1530 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1530 may not be directly executable by a processor of the at least one processor 1535 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1525 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 1535 may include multiple processors and the at least one memory 1525 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) .
[0285] The at least one processor 1535 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 1535 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 1535. The at least one processor 1535 may be configured to execute computer-readable instructions stored in a memory (e.g., one or more of the at least one memory 1525) to cause the device 1505 to perform various functions (e.g., functions or tasks supporting reconfiguration of C-DRX upon deactivation of LP-WUSs) . For example, the device 1505 or a component of the device 1505 may include at least one processor 1535 and at least one memory 1525 coupled with one or more of the at least one processor 1535, the at least one processor 1535 and the at least one memory 1525 configured to perform various functions described herein. The at least one processor 1535 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 1530) to perform the functions of the device 1505. The at least one processor 1535 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1505 (such as within one or more of the at least one memory 1525) .
[0286] In some examples, the at least one processor 1535 may include multiple processors and the at least one memory 1525 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 1535 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 1535) and memory circuitry (which may include the at least one memory 1525) ) , 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 1535 or a processing system including the at least one processor 1535 may be configured to, configurable to, or operable to cause the device 1505 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 1525 or otherwise, to perform one or more of the functions described herein.
[0287] In some examples, a bus 1540 may support communications of (e.g., within) a protocol layer of a protocol stack. In some examples, a bus 1540 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 1505, or between different components of the device 1505 that may be co-located or located in different locations (e.g., where the device 1505 may refer to a system in which one or more of the communications manager 1520, the transceiver 1510, the at least one memory 1525, the code 1530, and the at least one processor 1535 may be located in one of the different components or divided between different components) .
[0288] In some examples, the communications manager 1520 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 1520 may manage the transfer of data communications for client devices, such as one or more UEs 115. In some examples, the communications manager 1520 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 1520 may support an X2 interface within an LTE / LTE-A wireless communications network technology to provide communication between network entities 105.
[0289] For example, the communications manager 1520 is capable of, configured to, or operable to support a means for transmitting a set of LP-WUSs via a set of LP-WUS monitoring occasions to trigger downlink control channel monitoring occasions at a UE. The communications manager 1520 is capable of, configured to, or operable to support a means for receiving a message indicating that the UE is out of a coverage range associated with the LP-WUSs. The communications manager 1520 is capable of, configured to, or operable to support a means for transmitting control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is transmitted based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs. The communications manager 1520 is capable of, configured to, or operable to support a means for transmitting downlink signals via a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling.
[0290] By including or configuring the communications manager 1520 in accordance with examples as described herein, the device 1505 may support techniques that enable the network to activate and deactivate LP-WUSs at the UE 115 based on whether or not the UE 115 is within a coverage range of the LP-WUSs. As such, aspects of the present disclosure may prevent the UE 115 from monitoring LP-WUS monitoring occasions when the UE 115 is unable to receive LP-WUSs, thereby reducing power consumption at the UE 115 and improving battery performance at the UE 115. Additionally, aspects of the present disclosure enable the network to configure (or reconfigure) a DRX configuration and associated PDCCH monitoring based on the activation and deactivation of LP-WUSs. In this regard, aspects of the present disclosure may enable the network to tailor DRX-related PDCCH monitoring based on whether or not the UE 115 is able to perform LP-WUS-based monitoring, which may reduce a latency of wireless communications at the UE.
[0291] In some examples, the communications manager 1520 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the transceiver 1510, the one or more antennas 1515 (e.g., where applicable) , or any combination thereof. Although the communications manager 1520 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1520 may be supported by or performed by the transceiver 1510, one or more of the at least one processor 1535, one or more of the at least one memory 1525, the code 1530, or any combination thereof (for example, by a processing system including at least a portion of the at least one processor 1535, the at least one memory 1525, the code 1530, or any combination thereof) . For example, the code 1530 may include instructions executable by one or more of the at least one processor 1535 to cause the device 1505 to perform various aspects of reconfiguration of C-DRX upon deactivation of LP-WUSs as described herein, or the at least one processor 1535 and the at least one memory 1525 may be otherwise configured to, individually or collectively, perform or support such operations.
[0292] FIG. 16 shows a flowchart illustrating a method 1600 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs in accordance with one or more aspects of the present disclosure. The operations of the method 1600 may be implemented by a UE or its components as described herein. For example, the operations of the method 1600 may be performed by a UE 115 as described with reference to FIGs. 1 through 11. 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.
[0293] At 1605, the method may include monitoring a set of LP-WUS monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE. 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 LP-WUS monitoring component 1025 as described with reference to FIG. 10.
[0294] At 1610, the method may include transmitting, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs. 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 an uplink message transmitting component 1030 as described with reference to FIG. 10.
[0295] At 1615, the method may include receiving, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is received based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs. 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 a control signaling receiving component 1035 as described with reference to FIG. 10.
[0296] At 1620, the method may include monitoring a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling. 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 PDCCH monitoring component 1040 as described with reference to FIG. 10.
[0297] FIG. 17 shows a flowchart illustrating a method 1700 that supports reconfiguration of C-DRX upon deactivation of LP-WUSs 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 7 and 12 through 15. 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.
[0298] At 1705, the method may include transmitting a set of LP-WUSs via a set of LP-WUS monitoring occasions to trigger downlink control channel monitoring occasions at a UE. 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 LP-WUS transmitting component 1425 as described with reference to FIG. 14.
[0299] At 1710, the method may include receiving a message indicating that the UE is out of a coverage range associated with the LP-WUSs. 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 an uplink message receiving component 1430 as described with reference to FIG. 14.
[0300] At 1715, the method may include transmitting control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, where the control signaling is transmitted based on the message indicating that the UE is out of the coverage range associated with the LP-WUSs. 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 a control signaling transmitting component 1435 as described with reference to FIG. 14.
[0301] At 1720, the method may include transmitting downlink signals via a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based on the control signaling. 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 PDCCH transmitting component 1440 as described with reference to FIG. 14.
[0302] The following provides an overview of aspects of the present disclosure:
[0303] Aspect 1: A method for wireless communications at a UE, comprising: monitoring a set of LP-WUS monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE; transmitting, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs; receiving, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, wherein the control signaling is received based at least in part on the message indicating that the UE is out of the coverage range associated with the LP-WUSs; and monitoring a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based at least in part on the control signaling.
[0304] Aspect 2: The method of aspect 1, further comprising: receiving, from the network entity, RRC signaling indicating a first set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions are enabled, and a second set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions are disabled, wherein the control signaling indicates the second set of parameters based at least in part on the deactivation of the set of LP-WUS monitoring occasions.
[0305] Aspect 3: The method of aspect 2, wherein the first set of parameters comprise s a first periodicity and first subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a first on- duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, or both, and the second set of parameters comprises a second periodicity and a second subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a second on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, or both.
[0306] Aspect 4: The method of any of aspects 1 through 3, further comprising: receiving, from the network entity, RRC signaling that indicates an initial set of parameters associated with the DRX configuration, wherein the set of parameters indicated via the control signaling comprises a modification or reconfiguration of the initial set of parameters of the DRX configuration.
[0307] Aspect 5: The method of aspect 4, wherein the initial set of parameters indicated via the RRC signaling comprises a first periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration, and the set of parameters indicated via the control signaling comprises a second periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration.
[0308] Aspect 6: The method of aspect 5, wherein the second periodicity is shorter than the first periodicity based at least in part on the deactivation of the set of LP-WUS monitoring occasions.
[0309] Aspect 7: The method of any of aspects 4 through 6, wherein the initial set of parameters indicated via the RRC signaling comprises a first on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, the set of parameters indicated via the control signaling comprises a second on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, and the second on-duration timer is longer than the first on-duration timer based at least in part on the deactivation of the set of LP-WUS monitoring occasions.
[0310] Aspect 8: The method of any of aspects 1 through 7, wherein the set of parameters comprise resources for a set of DCP monitoring occasions associated with the DRX configuration, monitoring the set of downlink control channel monitoring occasions associated with the DRX configuration comprises monitoring the set of DCP monitoring occasions.
[0311] Aspect 9: The method of any of aspects 1 through 8, further comprising: performing measurements for reference signals received from the network entity, wherein the message indicating that the UE is out of the coverage range associated with the LP-WUSs is transmitted based at least in part on the measurements.
[0312] Aspect 10: The method of any of aspects 1 through 9, wherein the set of LP-WUS monitoring occasions is associated with the DRX configuration to trigger the set of downlink control channel monitoring occasions of the DRX configuration.
[0313] Aspect 11: The method of any of aspects 1 through 10, wherein the set of LP-WUS monitoring occasions are monitored to trigger an additional set of downlink control channel monitoring occasions that are separate from the DRX configuration.
[0314] Aspect 12: The method of any of aspects 1 through 11, wherein the LP-WUSs are associated with an OOK waveform.
[0315] Aspect 13: The method of any of aspects 1 through 12, wherein monitoring the set of LP-WUS monitoring occasions is performed using a LP-WUR of the UE, and monitoring the set of downlink control channel monitoring occasions is performed using a main radio of the UE.
[0316] Aspect 14: A method for wireless communications at a network entity, comprising: transmitting a set of LP-WUSs via a set of LP-WUS monitoring occasions to trigger downlink control channel monitoring occasions at a UE; receiving a message indicating that the UE is out of a coverage range associated with the LP-WUSs; transmitting control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a DRX configuration at the UE, wherein the control signaling is transmitted based at least in part on the message indicating that the UE is out of the coverage range associated with the LP-WUSs; and transmitting downlink signals via a set of downlink control channel monitoring occasions associated with the DRX configuration in accordance with the set of parameters and based at least in part on the control signaling.
[0317] Aspect 15: The method of aspect 14, further comprising: transmitting RRC signaling indicating a first set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions are enabled, and a second set of parameters associated with the DRX configuration for time periods that the set of LP-WUS monitoring occasions are disabled, wherein the control signaling indicates the second set of parameters based at least in part on the deactivation of the set of LP-WUS monitoring occasions.
[0318] Aspect 16: The method of aspect 15, wherein the first set of parameters comprises a first periodicity and a first subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a first on-duration timer associated with the set of downlink control channel monitoring occasions associated with the DRX configuration, or both, and the second set of parameters comprises a second periodicity and a second subframe offset for the set of downlink control channel monitoring occasions associated with the DRX configuration, a second on-duration timer associated with the set of downlink control channel monitoring occasions associated with the DRX configuration, or both.
[0319] Aspect 17: The method of any of aspects 14 through 16, further comprising: transmitting RRC signaling that indicates an initial set of parameters associated with the DRX configuration, wherein the set of parameters indicated via the control signaling comprises a modification or reconfiguration of the initial set of parameters of the DRX configuration.
[0320] Aspect 18: The method of aspect 17, wherein the initial set of parameters indicated via the RRC signaling comprises a first periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration, and the set of parameters indicated via the control signaling comprises a second periodicity for the set of downlink control channel monitoring occasions associated with the DRX configuration.
[0321] Aspect 19: The method of aspect 18, wherein the second periodicity is shorter than the first periodicity based at least in part on the deactivation of the set of LP-WUS monitoring occasions.
[0322] Aspect 20: The method of any of aspects 17 through 19, wherein the initial set of parameters indicated via the RRC signaling comprises a first on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, the set of parameters indicated via the control signaling comprises a second on-duration timer associated with the set of downlink control channel monitoring occasions of the DRX configuration, and the second on-duration timer is longer than the first on-duration timer based at least in part on the deactivation of the set of LP-WUS monitoring occasions.
[0323] Aspect 21: The method of any of aspects 14 through 20, wherein the set of parameters comprise resources for a set of DCP monitoring occasions associated with the DRX configuration, the downlink signals are transmitted via the set of DCP monitoring occasions.
[0324] Aspect 22: The method of any of aspects 14 through 21, wherein the set of LP-WUS monitoring occasions is associated with the DRX configuration to trigger the set of downlink control channel monitoring occasions of the DRX configuration.
[0325] Aspect 23: The method of any of aspects 14 through 22, wherein the set of LP-WUSs are transmitted via the set of LP-WUS monitoring occasions to trigger an additional set of downlink control channel monitoring occasions that are separate from the DRX configuration.
[0326] Aspect 24: The method of any of aspects 14 through 23, wherein the set of LP-WUSs are associated with an OOK waveform.
[0327] Aspect 25: An apparatus for wireless communication at a UE, comprising one or more memories, and one or more processors coupled with the one or more memories and configured to cause the UE to perform a method of any of aspects 1 through 13.
[0328] Aspect 26: AUE comprising at least one means for performing a method of any of aspects 1 through 13.
[0329] Aspect 27: A non-transitory computer-readable medium storing code the code comprising instructions executable by one or more processors to perform a method of any of aspects 1 through 13.
[0330] Aspect 28: An apparatus for wireless communication at a network entity comprising one or more memories, and one or more processors coupled with the one or more memories and configured to cause the network entity to perform a method of any of aspects 14 through 24.
[0331] Aspect 29: A network entity comprising at least one means for performing a method of any of aspects 14 through 24.
[0332] Aspect 30: A non-transitory computer-readable medium storing code the code comprising instructions executable by one or more processors to perform a method of any of aspects 14 through 24.
[0333] 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.
[0334] 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.
[0335] 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.
[0336] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed using a general-purpose processor, a DSP, an ASIC, a CPU, a graphics processing unit (GPU) , a neural processing unit (NPU) , an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor but, in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration) . Any functions or operations described herein as being capable of being performed by a processor may be performed by multiple processors that, individually or collectively, are capable of performing the described functions or operations.
[0337] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as or transmitted using one or more instructions or code of a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0338] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD) , floppy disk, and Blu-ray disc. Disks may reproduce data magnetically, and discs may reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media. Any functions or operations described herein as being capable of being performed by a memory may be performed by multiple memories that, individually or collectively, are capable of performing the described functions or operations.
[0339] As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. ”
[0340] As used herein, including in the claims, the article “a” before a noun is open-ended and understood to refer to “at least one” of those nouns or “one or more” of those nouns. Thus, the terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. For example, if a claim recites “acomponent” that performs one or more functions, each of the individual functions may be performed by a single component or by any combination of multiple components. Thus, the term “acomponent” having characteristics or performing functions may refer to “at least one of one or more components” having a particular characteristic or performing a particular function. Subsequent reference to a component introduced with the article “a” using the terms “the” or “said” may refer to any or all of the one or more components. For example, a component introduced with the article “a” may be understood to mean “one or more components, ” and referring to “the component” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ” Similarly, subsequent reference to a component introduced as “one or more components” using the terms “the” or “said” may refer to any or all of the one or more components. For example, referring to “the one or more components” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ”
[0341] The term “determine” or “determining” encompasses a variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database, or another data structure) , ascertaining, and the like. Also, “determining” can include receiving (e.g., receiving information) , accessing (e.g., accessing data stored in memory) , and the like. Also, “determining” can include resolving, obtaining, selecting, choosing, establishing, and other such similar actions.
[0342] 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.
[0343] 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.
[0344] 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
1.An apparatus for wireless communication at a user equipment (UE) , comprising:one or more memories; andone or more processors coupled with the one or more memories and configured cause the UE to:monitor a set of low-power wake up signal (LP-WUS) monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE;transmit, to a network entity, a message that indicates the UE is out of a coverage range associated with the LP-WUSs;receive, from the network entity, control signaling that indicates a deactivation of the set of LP-WUS monitoring occasions for the UE and that indicates a set of parameters for a discontinuous reception configuration at the UE, wherein the control signaling is received based at least in part on the indication that the UE is out of the coverage range associated with the LP-WUSs; andmonitor a set of downlink control channel monitoring occasions associated with the discontinuous reception configuration in accordance with the set of parameters and based at least in part on the control signaling.2.The apparatus of claim 1, wherein the one or more processors are configured to cause the UE to:receive, from the network entity, radio resource control signaling that indicates a first set of parameters associated with the discontinuous reception configuration for time periods that the set of LP-WUS monitoring occasions are enabled, and a second set of parameters associated with the discontinuous reception configuration for time periods that the set of LP-WUS monitoring occasions are disabled, wherein the control signaling indicates the second set of parameters based at least in part on the deactivation of the set of LP-WUS monitoring occasions.3.The apparatus of claim 2, wherein the first set of parameters comprises a first periodicity and first subframe offset for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, a first on-duration timer associated with the set of downlink control channel monitoring occasions of the discontinuous reception configuration, or both, and wherein the second set of parameters comprises a second periodicity and a second subframe offset for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, a second on-duration timer associated with the set of downlink control channel monitoring occasions of the discontinuous reception configuration, or both.4.The apparatus of claim 1, wherein the one or more processors are configured to cause the UE to:receive, from the network entity, radio resource control signaling that indicates an initial set of parameters associated with the discontinuous reception configuration, wherein the set of parameters indicated via the control signaling comprises a modification or reconfiguration of the initial set of parameters of the discontinuous reception configuration.5.The apparatus of claim 4, wherein the initial set of parameters indicated via the radio resource control signaling comprises a first periodicity for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, and wherein the set of parameters indicated via the control signaling comprises a second periodicity for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration.6.The apparatus of claim 5, wherein the second periodicity is shorter than the first periodicity based at least in part on the deactivation of the set of LP-WUS monitoring occasions.7.The apparatus of claim 4, wherein the initial set of parameters indicated via the radio resource control signaling comprises a first on-duration timer associated with the set of downlink control channel monitoring occasions of the discontinuous reception configuration, wherein the set of parameters indicated via the control signaling comprises a second on-duration timer associated with the set of downlink control channel monitoring occasions of the discontinuous reception configuration, and wherein the second on-duration timer is longer than the first on-duration timer based at least in part on the deactivation of the set of LP-WUS monitoring occasions.8.The apparatus of claim 1, wherein the set of parameters comprise resources for a set of downlink control information of power saving (DCP) monitoring occasions associated with the discontinuous reception configuration, wherein monitoring the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration comprises monitoring the set of DCP monitoring occasions.9.The apparatus of claim 1, wherein the one or more processors are configured to cause the UE to:perform measurements for reference signals received from the network entity, wherein the message that indicates the UE is out of the coverage range associated with the LP-WUSs is transmitted based at least in part on the measurements.10.The apparatus of claim 1, wherein the set of LP-WUS monitoring occasions is associated with the discontinuous reception configuration to trigger the set of downlink control channel monitoring occasions of the discontinuous reception configuration.11.The apparatus of claim 1, wherein the set of LP-WUS monitoring occasions are monitored to trigger an additional set of downlink control channel monitoring occasions that are separate from the discontinuous reception configuration.12.The apparatus of claim 1, wherein the LP-WUSs are associated with an on-off keying waveform.13.The apparatus of claim 1, wherein the set of LP-WUS monitoring occasions are monitored using a low-power wake-up receiver (LP-WUR) of the UE, and wherein the set of downlink control channel monitoring occasions are monitored using a main radio of the UE.14.An apparatus for wireless communication at a network entity, comprising:one or more memories; andone or more processors coupled with the one or more memories and configured to cause the network entity to:transmit a set of LP-WUSs via a set of low-power wake up signal (LP-WUS) monitoring occasions to trigger downlink control channel monitoring occasions at a user equipment (UE) ;receive a message that indicates the UE is out of a coverage range associated with the LP-WUSs;transmit control signaling that indicates a deactivation of the set of LP-WUS monitoring occasions for the UE and that indicates a set of parameters for a discontinuous reception configuration at the UE, wherein the control signaling is transmitted based at least in part on the indication that the UE is out of the coverage range associated with the LP-WUSs; andtransmit downlink signals via a set of downlink control channel monitoring occasions associated with the discontinuous reception configuration in accordance with the set of parameters and based at least in part on the control signaling.15.The apparatus of claim 14, wherein the one or more processors are configured to cause the network entity to:transmit radio resource control signaling that indicates a first set of parameters associated with the discontinuous reception configuration for time periods that the set of LP-WUS monitoring occasions are enabled, and a second set of parameters associated with the discontinuous reception configuration for time periods that the set of LP-WUS monitoring occasions are disabled, wherein the control signaling indicates the second set of parameters based at least in part on the deactivation of the set of LP-WUS monitoring occasions.16.The apparatus of claim 15, wherein the first set of parameters comprises a first periodicity and a first subframe offset for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, a first on-duration timer associated with the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, or both, and wherein the second set of parameters comprises a second periodicity and a second subframe offset for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, a second on-duration timer associated with the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, or both.17.The apparatus of claim 14, wherein the one or more processors are configured low-power wake up signal to cause the network entity to:transmit radio resource control signaling that indicates an initial set of parameters associated with the discontinuous reception configuration, wherein the set of parameters indicated via the control signaling comprises a modification or reconfiguration of the initial set of parameters of the discontinuous reception configuration.18.The apparatus of claim 17, wherein the initial set of parameters indicated via the radio resource control signaling comprises a first periodicity for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, and wherein the set of parameters indicated via the control signaling comprises a second periodicity for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration.19.The apparatus of claim 18, wherein the second periodicity is shorter than the first periodicity based at least in part on the deactivation of the set of LP-WUS monitoring occasions.20.The apparatus of claim 17, wherein the initial set of parameters indicated via the radio resource control signaling comprises a first on-duration timer associated with the set of downlink control channel monitoring occasions of the discontinuous reception configuration, wherein the set of parameters indicated via the control signaling comprises a second on-duration timer associated with the set of downlink control channel monitoring occasions of the discontinuous reception configuration, and wherein the second on-duration timer is longer than the first on- duration timer based at least in part on the deactivation of the set of LP-WUS monitoring occasions.21.The apparatus of claim 14, wherein the set of parameters comprise resources for a set of downlink control information of power saving (DCP) monitoring occasions associated with the discontinuous reception configuration, wherein the downlink signals are transmitted via the set of DCP monitoring occasions.22.The apparatus of claim 14, wherein the set of LP-WUS monitoring occasions is associated with the discontinuous reception configuration to trigger the set of downlink control channel monitoring occasions of the discontinuous reception configuration.23.The apparatus of claim 14, wherein the set of LP-WUSs are transmitted via the set of LP-WUS monitoring occasions to trigger an additional set of downlink control channel monitoring occasions that are separate from the discontinuous reception configuration.24.The apparatus of claim 14, wherein the set of LP-WUSs are associated with an on-off keying waveform.25.A method for wireless communications at a user equipment (UE) , comprising:monitoring a set of low-power wake up signal (LP-WUS) monitoring occasions for LP-WUSs to trigger downlink control channel monitoring occasions at the UE;transmitting, to a network entity, a message indicating that the UE is out of a coverage range associated with the LP-WUSs;receiving, from the network entity, control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a discontinuous reception configuration at the UE, wherein the control signaling is received based at least in part on the message indicating that the UE is out of the coverage range associated with the LP-WUSs; andmonitoring a set of downlink control channel monitoring occasions associated with the discontinuous reception configuration in accordance with the set of parameters and based at least in part on the control signaling.26.The method of claim 25, further comprising:receiving, from the network entity, radio resource control signaling indicating a first set of parameters associated with the discontinuous reception configuration for time periods that the set of LP-WUS monitoring occasions are enabled, and a second set of parameters associated with the discontinuous reception configuration for time periods that the set of LP-WUS monitoring occasions are disabled, wherein the control signaling indicates the second set of parameters based at least in part on the deactivation of the set of LP-WUS monitoring occasions.27.The method of claim 26, wherein the first set of parameters comprises a first periodicity and first subframe offset for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, a first on-duration timer associated with the set of downlink control channel monitoring occasions of the discontinuous reception configuration, or both, and wherein the second set of parameters comprises a second periodicity and a second subframe offset for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, a second on-duration timer associated with the set of downlink control channel monitoring occasions of the discontinuous reception configuration, or both.28.A method for wireless communications at a network entity, comprising:transmitting a set of LP-WUSs via a set of low-power wake up signal (LP-WUS) monitoring occasions to trigger downlink control channel monitoring occasions at a user equipment (UE) ;receiving a message indicating that the UE is out of a coverage range associated with the LP-WUSs;transmitting control signaling indicating a deactivation of the set of LP-WUS monitoring occasions for the UE and indicating a set of parameters for a discontinuous reception configuration at the UE, wherein the control signaling is transmitted based at least in part on the message indicating that the UE is out of the coverage range associated with the LP-WUSs; andtransmitting downlink signals via a set of downlink control channel monitoring occasions associated with the discontinuous reception configuration in accordance with the set of parameters and based at least in part on the control signaling.29.The method of claim 28, further comprising:transmitting radio resource control signaling indicating a first set of parameters associated with the discontinuous reception configuration for time periods that the set of LP-WUS monitoring occasions are enabled, and a second set of parameters associated with the discontinuous reception configuration for time periods that the set of LP-WUS monitoring occasions are disabled, wherein the control signaling indicates the second set of parameters based at least in part on the deactivation of the set of LP-WUS monitoring occasions.30.The method of claim 29, wherein the first set of parameters comprises a first periodicity and a first subframe offset for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, a first on-duration timer associated with the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, or both, and wherein the second set of parameters comprises a second periodicity and a second subframe offset for the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, a second on-duration timer associated with the set of downlink control channel monitoring occasions associated with the discontinuous reception configuration, or both.
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