Selective wake-up signal monitoring for discontinuous reception
Temporal beam prediction for wake-up signal monitoring instances addresses power consumption issues by allowing devices to selectively monitor optimized wake-up signal instances, enhancing energy efficiency in wireless communications systems.
Patent Information
- Application Number
- PCT/CN2024/083718
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-10-02
AI Technical Summary
Devices configured to monitor for wake-up signals across multiple instances in wireless communications systems face significant power consumption due to extensive radio frequency turn-on and downlink channel detection efforts, particularly when multiple transmit beams are required.
Implementing temporal beam prediction for wake-up signal monitoring instances, where a network entity or device determines optimal WUS monitoring instances based on historical measurements or predictions, allowing devices to limit monitoring to indicated instances, reducing unnecessary power consumption.
The solution significantly reduces power consumption by enabling devices to monitor only the predicted wake-up signal instances, thereby optimizing power usage and improving energy efficiency in wireless communications systems.
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Figure CN2024083718_02102025_PF_FP_ABST
Abstract
Description
SELECTIVE WAKE-UP SIGNAL MONITORING FOR DISCONTINUOUS RECEPTIONBACKGROUND
[0001] Field of the Disclosure
[0002] Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for selective wake-up signal (WUS) monitoring for discontinuous reception (DRX) .
[0003] Description of Related Art
[0004] Wireless communications systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasts, or other similar types of services. These wireless communications systems may employ multiple-access technologies capable of supporting communications with multiple users by sharing available wireless communications system resources with those users.
[0005] Although wireless communications systems have made great technological advancements over many years, challenges still exist. For example, complex and dynamic environments can still attenuate or block signals between wireless transmitters and wireless receivers. Accordingly, there is a continuous desire to improve the technical performance of wireless communications systems, including, for example: improving speed and data carrying capacity of communications, improving efficiency of the use of shared communications mediums, reducing power used by transmitters and receivers while performing communications, improving reliability of wireless communications, avoiding redundant transmissions and / or receptions and related processing, improving the coverage area of wireless communications, increasing the number and types of devices that can access wireless communications systems, increasing the ability for different types of devices to intercommunicate, increasing the number and type of wireless communications mediums available for use, and the like. Consequently, there exists a need for further improvements in wireless communications systems to overcome the aforementioned technical challenges and others.SUMMARY
[0006] One aspect provides a method for wireless communications by an apparatus. The method includes receiving, from a network entity, a configuration of a plurality of sets of WUS monitoring instances, wherein the plurality of sets of wake-up signal (WUS) monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of discontinuous reception (DRX) -on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances; receiving, from the network entity, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles, wherein the first WUS comprises: an indication of whether to start an on duration timer for the first DRX-on cycle; and an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances; and monitoring for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0007] Another aspect provides a method for wireless communications by an apparatus. The method includes sending, to a device, a configuration of a plurality of sets of WUS monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances; sending, to the device, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles, wherein the first WUS comprises: an indication of whether to start an on duration timer for the first DRX-on cycle; and an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances; and sending, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0008] Other aspects provide: one or more apparatuses operable, configured, or otherwise adapted to perform any portion of any method described herein (e.g., such that performance may be by only one apparatus or in a distributed fashion across multiple apparatuses) ; one or more non-transitory, computer-readable media comprising instructions that, when executed by one or more processors of one or more apparatuses, cause the one or more apparatuses to perform any portion of any method described herein (e.g., such that instructions may be included in only one computer-readable medium or in a distributed fashion across multiple computer-readable media, such that instructions may be executed by only one processor or by multiple processors in a distributed fashion, such that each apparatus of the one or more apparatuses may include one processor or multiple processors, and / or such that performance may be by only one apparatus or in a distributed fashion across multiple apparatuses) ; one or more computer program products embodied on one or more computer-readable storage media comprising code for performing any portion of any method described herein (e.g., such that code may be stored in only one computer-readable medium or across computer-readable media in a distributed fashion) ; and / or one or more apparatuses comprising one or more means for performing any portion of any method described herein (e.g., such that performance would be by only one apparatus or by multiple apparatuses in a distributed fashion) . By way of example, an apparatus may comprise a processing system, a device with a processing system, or processing systems cooperating over one or more networks. An apparatus may comprise one or more memories; and one or more processors configured to cause the apparatus to perform any portion of any method described herein. In some examples, one or more of the processors may be preconfigured to perform various functions or operations described herein without requiring configuration by software.
[0009] The following description and the appended figures set forth certain features for purposes of illustration.BRIEF DESCRIPTION OF DRAWINGS
[0010] The appended figures depict certain features of the various aspects described herein and are not to be considered limiting of the scope of this disclosure.
[0011] FIG. 1 depicts an example wireless communications network.
[0012] FIG. 2 depicts an example disaggregated base station architecture.
[0013] FIG. 3 depicts aspects of an example base station and an example user equipment (UE) .
[0014] FIGS. 4A, 4B, 4C, and 4D depict various example aspects of data structures for a wireless communications network.
[0015] FIG. 5 depicts an example wireless communications system communicating an indication of wakeup signal (WUS) monitoring instances to monitor.
[0016] FIG. 6 depicts an example wireless communications system communicating a request to report prediction (s) corresponding to WUS monitoring instances.
[0017] FIGS. 7A, 7B, and 7C depict various example aspects of communications with discontinuous reception (DRX) .
[0018] FIG. 8 depicts an example of a communications system with DRX.
[0019] FIG. 9 depicts an example of a DRX communications system with temporal beam prediction.
[0020] FIG. 10 depicts a process flow for communications in a network between a network entity and a device.
[0021] FIG. 11 depicts a process flow for communications in a network between a network entity and a device.
[0022] FIG. 12 depicts a method for wireless communications.
[0023] FIG. 13 depicts another method for wireless communications.
[0024] FIG. 14 depicts another method for wireless communications.
[0025] FIG. 15 depicts another method for wireless communications.
[0026] FIG. 16 depicts aspects of an example communications device.
[0027] FIG. 17 depicts aspects of an example communications device.DETAILED DESCRIPTION
[0028] Aspects of the present disclosure provide apparatuses, methods, processing systems, and computer-readable mediums for indicating wake-up signal (WUS) monitoring instances to monitor and / or requesting prediction (s) corresponding to WUS monitoring instances via a WUS. For example, certain aspects provide techniques for indicating and / or requesting a temporal beam prediction via a WUS for discontinuous reception (DRX) . In particular, certain aspects provide techniques for a network entity to transmit a first WUS to a device prior to a first DRX-on cycle associated with the first WUS, where the first WUS includes at least an indication of one or more WUS monitoring instances (e.g., one or more search space sets, one or more downlink channel monitoring occasions (MOs) , etc. ) for the device to monitor for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances, where the at least one additional WUS is associated with at least one DRX-on cycle after the first DRX-on cycle. In some aspects, the network entity may send a configuration of a plurality of sets of WUS monitoring instances prior to sending the first WUS, and the plurality of sets of WUS monitoring instances may be associated with a plurality of DRX-on cycles, where each set of WUS monitoring instances (e.g., of the plurality of sets of WUS monitoring instances) includes a plurality of WUS monitoring instances. Accordingly, the device may monitor for the at least one additional WUS in the at least one WUS monitoring instance of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, where the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0029] A wireless communication system may include a number of devices (e.g., terminals, network devices, and other devices) exchanging data, control information, reference signals, etc. (e.g., communicating) with each other. In some examples, a wireless communication system may generally include or refer to a number of devices employing techniques for exchanging information wirelessly. For example, a wireless communication system may include terminals (e.g., user devices or user equipment (UE) ) and network entities (e.g., base stations (BS) ) that wirelessly communicate data, control information, reference signals, etc. (e.g., according to various wireless communication system implementations) . Devices operating in a wireless communication system may employ various technologies to improve throughput, achieve a high data rate, and / or improve the energy efficiency of the wireless communication system. These technologies may allow a wireless communication system to support communication between an increasing number of devices, support advanced functionalities at various devices, improve the quality of communication between devices, etc.
[0030] As an example described herein, devices may employ DRX operations to reduce power consumption and / or conserve battery of the devices. In DRX, the devices may periodically alternate between an active mode (e.g., “ON” or awake periods) during DRX-on cycles and an inactive mode (e.g., “OFF, ” sleep periods, or idle periods) . During the active mode and the DRX-on cycles, the device may power on at least a portion of its internal circuitry to monitor for messages or incoming data. Additionally or alternatively, in the inactive mode, the device may power down at least a portion of its internal circuitry to reduce power consumption (e.g., battery power consumption) , and the device is not expected to receive messages or data in the inactive mode. In some examples, DRX may be employed based on parameters configured by the network. For example, a network entity may configure timing information (e.g., durations of the awake modes and the sleep modes, inactivity timers, retransmission timers, periodicity, etc. ) based on semi-static signaling (e.g., radio resource control (RRC) signaling) or dynamic signaling.
[0031] In some aspects, DRX can be employed in both idle and connected modes for a device. For example, in the idle mode DRX (e.g., Paging Cycle, Paging DRX, etc. ) , a device periodically wakes up to monitor for paging messages during the DRX-on cycles and goes back to the inactive mode if a paging message is not intended for it. For the idle mode DRX, the device does not need to be in a connected state with the network. Additionally or alternatively, for the connected mode DRX (C-DRX) , a device is in a connected state with the network and is actively sending or receiving data with a network entity. In C-DRX, the device periodically enters the inactive mode (e.g., DRX mode) outside of the DRX-on cycles, while still maintaining the connection to the network, and enters the active mode during the DRX-on cycles to monitor a downlink channel for data or messages from the network entity. In some aspects, in C-DRX, prior to entering the active mode and prior to the DRX-on cycles, the device may monitor for a WUS from the network entity (e.g., outside of DRX active times, such as the DRX-on cycles) , where the WUS indicates whether the device should start an on duration timer for a DRX-on cycle that corresponds to the WUS (e.g., a next occurring DRX-on cycle after the WUS) .
[0032] One or more technical problems arise when a device is configured to monitor for a WUS from a network entity across multiple WUS monitoring instances (e.g., across multiple beams or beamformed transmissions from the network entity and / or across multiple sets of time-frequency resources) . For example, in order to allow a network entity to sweep multiple transmit beams when transmitting WUS (s) , a device may be configured with WUS detection based on multiple WUS monitoring instances, where resources (e.g., time-frequency resources) associated with different such WUS monitoring instances may correspond to different transmission configuration indicator (TCI) -states and / or transmit beams. In some aspects, the network entity may transmit WUS (s) towards various devices in different directions in such swept beams, but for a particular device, whether the device can detect a WUS in all or a subset of the configured WUS monitoring instances may be up to an implementation at the network entity. Thus, such transmission beam sweep may require the device to carry out potentially a large amount of radio frequency (RF) turn-on and downlink channel detection efforts, potentially costing additional power consumption at the device (e.g., compared to cases where a transmission beam sweep may be less necessary) .
[0033] Accordingly, the techniques and signaling described herein may provide a technical solution for supporting a temporal beam prediction of one or more WUS monitoring instances that a device may then use to monitor for subsequent WUS (s) associated with corresponding DRX-on cycle (s) (e.g., after receiving or sending the temporal beam prediction) . In some aspects, the temporal beam prediction of the one or more WUS monitoring instances may be determined by a network entity based on historical measurements received from the device (e.g., device-reported characteristics of synchronization signals and / or reference signals sent by the network entity and received by the device) and / or a report of prediction results associated with the one or more WUS monitoring instances received from the device. Additionally or alternatively, the temporal beam prediction of the one or more WUS monitoring instances may be determined by the device based on a request for the device to report one or more predictions corresponding to a plurality of WUS monitoring instances, where the plurality of WUS monitoring instances includes at least the one or more WUS monitoring instances.
[0034] For the network entity determination of the one or more WUS monitoring instances, the network entity may transmit a first WUS associated with a first DRX-on cycle, and the first WUS may include an indication of the one or more WUS monitoring instances for the device, such that the device may then use the one or more indicated WUS monitoring instances to monitor for at least one additional WUS after the first WUS. Additionally or alternatively, for the device determination of the one or more WUS monitoring instances, the network entity may transmit the first WUS associated with the first DRX-on cycle, but the first WUS may include an indication for the device to report the one or more predictions corresponding to the plurality of WUS monitoring instances, where the device then monitors the one or more WUS monitoring instances for the at least one additional WUS based on the one or more predictions.
[0035] For the first WUS, the network entity may configure and indicate a plurality of sets of WUS monitoring instances that are associated with a plurality of DRX-on cycles, and each set of WUS monitoring instances (e.g., of the plurality of sets of WUS monitoring instances) may include a plurality of WUS monitoring instances. Subsequently, the device may receive the first WUS prior to the first DRX-on cycle based on monitoring the plurality of WUS monitoring instances in a first set of WUS monitoring instances of the plurality of sets of WUS monitoring instances.
[0036] However, rather than monitoring each WUS monitoring instance of the plurality of WUS monitoring instances for the at least one additional WUS in at least one subsequent set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, the device may limit its monitoring to at least one WUS monitoring instance of the one or more WUS monitoring instances indicated in the first WUS and / or determined from the one or more predictions requested in the first WUS, where the at least one subsequent set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0037] The techniques for supporting the temporal beam prediction of the one or more WUS monitoring instances as described herein may provide any of various beneficial effects and / or advantages. For example, the device may reduce power consumption by monitoring the at least one WUS monitoring instance of the one or more WUS monitoring instances indicated in the first WUS and / or determined from the one or more predictions requested in the first WUS rather than monitoring each of the plurality of WUS monitoring instances for the at least one additional WUS.
[0038] Introduction to Wireless Communications Networks
[0039] The techniques and methods described herein may be used for various wireless communications networks. While aspects may be described herein using terminology commonly associated with 3G, 4G, 5G, 6G, and / or other generations of wireless technologies, aspects of the present disclosure may likewise be applicable to other communications systems and standards not explicitly mentioned herein.
[0040] FIG. 1 depicts an example of a wireless communications network 100, in which aspects described herein may be implemented.
[0041] Generally, wireless communications network 100 includes various network entities (alternatively, network elements or network nodes) . A network entity is generally a communications device and / or a communications function performed by a communications device (e.g., a user equipment (UE) , a base station (BS) , a component of a BS, a server, etc. ) . As such communications devices are part of wireless communications network 100, and facilitate wireless communications, such communications devices may be referred to as wireless communications devices. For example, various functions of a network as well as various devices associated with and interacting with a network may be considered network entities. Further, wireless communications network 100 includes terrestrial aspects (also referred to herein as non-terrestrial network entities) , such as ground-based network entities (e.g., BSs 102) , and non-terrestrial aspects, such as satellite 140 and / or aerial or spaceborne platform (s) , which may include network entities on-board (e.g., one or more BSs) capable of communicating with other network elements (e.g., terrestrial BSs) and UEs.
[0042] In the depicted example, wireless communications network 100 includes BSs 102, UEs 104, and one or more core networks, such as an Evolved Packet Core (EPC) 160 and 5G Core (5GC) network 190, which interoperate to provide communications services over various communications links, including wired and wireless links.
[0043] FIG. 1 depicts various example UEs 104, which may more generally include: a cellular phone, smart phone, session initiation protocol (SIP) phone, laptop, personal digital assistant (PDA) , satellite radio, global positioning system, multimedia device, video device, digital audio player, camera, game console, tablet, smart device, wearable device, vehicle, electric meter, gas pump, large or small kitchen appliance, healthcare device, implant, sensor / actuator, display, internet of things (IoT) devices, always on (AON) devices, edge processing devices, data centers, or other similar devices. UEs 104 may also be referred to more generally as a mobile device, a wireless device, a station, a mobile station, a subscriber station, a mobile subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a remote device, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, and others.
[0044] BSs 102 wirelessly communicate with (e.g., transmit signals to or receive signals from) UEs 104 via communications links 120. The communications links 120 between BSs 102 and UEs 104 may include uplink (UL) (also referred to as reverse link) transmissions from a UE 104 to a BS 102 and / or downlink (DL) (also referred to as forward link) transmissions from a BS 102 to a UE 104. The communications links 120 may use multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity in various aspects.
[0045] BSs 102 may generally include: a NodeB, enhanced NodeB (eNB) , next generation enhanced NodeB (ng-eNB) , next generation NodeB (gNB or gNodeB) , access point, base transceiver station, radio base station, radio transceiver, transceiver function, transmission reception point, and / or others. Each of BSs 102 may provide communications coverage for a respective coverage area 110, which may sometimes be referred to as a cell, and which may overlap in some cases (e.g., small cell 102’ may have a coverage area 110’ that overlaps the coverage area 110 of a macro cell) . A BS may, for example, provide communications coverage for a macro cell (covering relatively large geographic area) , a pico cell (covering relatively smaller geographic area, such as a sports stadium) , a femto cell (relatively smaller geographic area (e.g., a home) ) , and / or other types of cells.
[0046] Generally, a cell may refer to a portion, partition, or segment of wireless communication coverage served by a network entity within a wireless communication network. A cell may have geographic characteristics, such as a geographic coverage area, as well as radio frequency characteristics, such as time and / or frequency resources dedicated to the cell. For example, a specific geographic coverage area may be covered by multiple cells employing different frequency resources (e.g., bandwidth parts) and / or different time resources. As another example, a specific geographic coverage area may be covered by a single cell. In some contexts (e.g., a carrier aggregation scenario and / or multi-connectivity scenario) , the terms “cell” or “serving cell” may refer to or correspond to a specific carrier frequency (e.g., a component carrier) used for wireless communications, and a “cell group” may refer to or correspond to multiple carriers used for wireless communications. As examples, in a carrier aggregation scenario, a UE may communicate on multiple component carriers corresponding to multiple (serving) cells in the same cell group, and in a multi-connectivity (e.g., dual connectivity) scenario, a UE may communicate on multiple component carriers corresponding to multiple cell groups.
[0047] While BSs 102 are depicted in various aspects as unitary communications devices, BSs 102 may be implemented in various configurations. For example, one or more components of a base station may be disaggregated, including a central unit (CU) , one or more distributed units (DUs) , one or more radio units (RUs) , a Near-Real Time (Near-RT) RAN Intelligent Controller (RIC) , or a Non-Real Time (Non-RT) RIC, to name a few examples. In another example, various aspects of a base station may be virtualized. More generally, a base station (e.g., BS 102) may include components that are located at a single physical location or components located at various physical locations. In examples in which a base station includes components that are located at various physical locations, the various components may each perform functions such that, collectively, the various components achieve functionality that is similar to a base station that is located at a single physical location. In some aspects, a base station including components that are located at various physical locations may be referred to as a disaggregated radio access network architecture, such as an Open RAN (O-RAN) or Virtualized RAN (VRAN) architecture. FIG. 2 depicts and describes an example disaggregated base station architecture.
[0048] Different BSs 102 within wireless communications network 100 may also be configured to support different radio access technologies, such as 3G, 4G, and / or 5G. For example, BSs 102 configured for 4G LTE (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN) ) may interface with the EPC 160 through first backhaul links 132 (e.g., an S1 interface) . BSs 102 configured for 5G (e.g., 5G NR or Next Generation RAN (NG-RAN) ) may interface with 5GC 190 through second backhaul links 184. BSs 102 may communicate directly or indirectly (e.g., through the EPC 160 or 5GC 190) with each other over third backhaul links 134 (e.g., X2 interface) , which may be wired or wireless.
[0049] Wireless communications network 100 may subdivide the electromagnetic spectrum into various classes, bands, channels, or other features. In some aspects, the subdivision is provided based on wavelength and frequency, where frequency may also be referred to as a carrier, a subcarrier, a frequency channel, a tone, or a subband. For example, 3GPP currently defines Frequency Range 1 (FR1) as including 410 MHz –7125 MHz, which is often referred to (interchangeably) as “Sub-6 GHz” . Similarly, 3GPP currently defines Frequency Range 2 (FR2) as including 24,250 MHz –71,000 MHz, which is sometimes referred to (interchangeably) as a “millimeter wave” ( “mmW” or “mmWave” ) . In some cases, FR2 may be further defined in terms of sub-ranges, such as a first sub-range FR2-1 including 24,250 MHz –52,600 MHz and a second sub-range FR2-2 including 52,600 MHz –71,000 MHz. A base station configured to communicate using mmWave / near mmWave radio frequency bands (e.g., a mmWave base station such as BS 180) may utilize beamforming (e.g., 182) with a UE (e.g., 104) to improve path loss and range.
[0050] The communications links 120 between BSs 102 and, for example, UEs 104, may be through one or more carriers, which may have different bandwidths (e.g., 5, 10, 15, 20, 100, 400, and / or other MHz) , and which may be aggregated in various aspects. Carriers may or may not be adjacent to each other. Allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL than for UL) .
[0051] Communications using higher frequency bands may have higher path loss and a shorter range compared to lower frequency communications. Accordingly, certain base stations (e.g., 180 in FIG. 1) may utilize beamforming 182 with a UE 104 to improve path loss and range. For example, BS 180 and the UE 104 may each include a plurality of antennas, such as antenna elements, antenna panels, and / or antenna arrays to facilitate the beamforming. In some cases, BS 180 may transmit a beamformed signal to UE 104 in one or more transmit directions 182’ . UE 104 may receive the beamformed signal from the BS 180 in one or more receive directions 182” . UE 104 may also transmit a beamformed signal to the BS 180 in one or more transmit directions 182” . BS 180 may also receive the beamformed signal from UE 104 in one or more receive directions 182’ . BS 180 and UE 104 may then perform beam training to determine the best receive and transmit directions for each of BS 180 and UE 104. Notably, the transmit and receive directions for BS 180 may or may not be the same. Similarly, the transmit and receive directions for UE 104 may or may not be the same.
[0052] Wireless communications network 100 further includes a Wi-Fi AP 150 in communication with Wi-Fi stations (STAs) 152 via communications links 154 in, for example, a 2.4 GHz and / or 5 GHz unlicensed frequency spectrum.
[0053] Certain UEs 104 may communicate with each other using device-to-device (D2D) communications link 158. D2D communications link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , a physical sidelink control channel (PSCCH) , and / or a physical sidelink feedback channel (PSFCH) .
[0054] EPC 160 may include various functional components, including: a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and / or a Packet Data Network (PDN) Gateway 172, such as in the depicted example. MME 162 may be in communication with a Home Subscriber Server (HSS) 174. MME 162 is the control node that processes the signaling between the UEs 104 and the EPC 160. Generally, MME 162 provides bearer and connection management.
[0055] Generally, user Internet protocol (IP) packets are transferred through Serving Gateway 166, which itself is connected to PDN Gateway 172. PDN Gateway 172 provides UE IP address allocation as well as other functions. PDN Gateway 172 and the BM-SC 170 are connected to IP Services 176, which may include, for example, the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a Packet Switched (PS) streaming service, and / or other IP services.
[0056] BM-SC 170 may provide functions for MBMS user service provisioning and delivery. BM-SC 170 may serve as an entry point for content provider MBMS transmission, may be used to authorize and initiate MBMS Bearer Services within a public land mobile network (PLMN) , and / or may be used to schedule MBMS transmissions. MBMS Gateway 168 may be used to distribute MBMS traffic to the BSs 102 belonging to a Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a particular service, and / or may be responsible for session management (start / stop) and for collecting eMBMS related charging information.
[0057] 5GC 190 may include various functional components, including: an Access and Mobility Management Function (AMF) 192, other AMFs 193, a Session Management Function (SMF) 194, and a User Plane Function (UPF) 195. AMF 192 may be in communication with Unified Data Management (UDM) 196.
[0058] AMF 192 is a control node that processes signaling between UEs 104 and 5GC 190. AMF 192 provides, for example, quality of service (QoS) flow and session management.
[0059] Internet protocol (IP) packets are transferred through UPF 195, which is connected to the IP Services 197, and which provides UE IP address allocation as well as other functions for 5GC 190. IP Services 197 may include, for example, the Internet, an intranet, an IMS, a PS streaming service, and / or other IP services.
[0060] In various aspects, a network entity or network node can be implemented as an aggregated base station, as a disaggregated base station, a component of a base station, an integrated access and backhaul (IAB) node, a relay node, a sidelink node, to name a few examples.
[0061] FIG. 2 depicts an example disaggregated base station 200 architecture. The disaggregated base station 200 architecture may include one or more central units (CUs) 210 that can communicate directly with a core network 220 via a backhaul link, or indirectly with the core network 220 through one or more disaggregated base station units (such as a Near-Real Time (Near-RT) RAN Intelligent Controller (RIC) 225 via an E2 link, or a Non-Real Time (Non-RT) RIC 215 associated with a Service Management and Orchestration (SMO) Framework 205, or both) . A CU 210 may communicate with one or more distributed units (DUs) 230 via respective midhaul links, such as an F1 interface. The DUs 230 may communicate with one or more radio units (RUs) 240 via respective fronthaul links. The RUs 240 may communicate with respective UEs 104 via one or more radio frequency (RF) access links. In some implementations, the UE 104 may be simultaneously served by multiple RUs 240.
[0062] Each of the units, e.g., the CUs 210, the DUs 230, the RUs 240, as well as the Near-RT RICs 225, the Non-RT RICs 215 and the SMO Framework 205, may include one or more interfaces or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of the units, or an associated processor or controller providing instructions to the communications interfaces of the units, can be configured to communicate with one or more of the other units via the transmission medium. For example, the units can include a wired interface configured to receive or transmit signals over a wired transmission medium to one or more of the other units. Additionally or alternatively, the units can include a wireless interface, which may include a receiver, a transmitter or transceiver (such as a radio frequency (RF) transceiver) , configured to receive or transmit signals, or both, over a wireless transmission medium to one or more of the other units.
[0063] In some aspects, the CU 210 may host one or more higher layer control functions. Such control functions can include radio resource control (RRC) , packet data convergence protocol (PDCP) , service data adaptation protocol (SDAP) , or the like. Each control function can be implemented with an interface configured to communicate signals with other control functions hosted by the CU 210. The CU 210 may be configured to handle user plane functionality (e.g., Central Unit –User Plane (CU-UP) ) , control plane functionality (e.g., Central Unit –Control Plane (CU-CP) ) , or a combination thereof. In some implementations, the CU 210 can be logically split into one or more CU-UP units and one or more CU-CP units. The CU-UP unit can communicate bidirectionally with the CU-CP unit via an interface, such as the E1 interface when implemented in an O-RAN configuration. The CU 210 can be implemented to communicate with the DU 230, as necessary, for network control and signaling.
[0064] The DU 230 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 240. In some aspects, the DU 230 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (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 aspects, the DU 230 may further host one or more low PHY layers. Each layer (or module) can be implemented with an interface configured to communicate signals with other layers (and modules) hosted by the DU 230, or with the control functions hosted by the CU 210.
[0065] Lower-layer functionality can be implemented by one or more RUs 240. In some deployments, an RU 240, controlled by a DU 230, may correspond to a logical node that hosts RF processing functions, or low-PHY layer functions (such as 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, the RU (s) 240 can be implemented to handle over the air (OTA) communications with one or more UEs 104. In some implementations, real-time and non-real-time aspects of control and user plane communications with the RU (s) 240 can be controlled by the corresponding DU 230. In some scenarios, this configuration can enable the DU (s) 230 and the CU 210 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0066] The SMO Framework 205 may be configured to support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 205 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 (such as an O1 interface) . For virtualized network elements, the SMO Framework 205 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 290) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface (such as an O2 interface) . Such virtualized network elements can include, but are not limited to, CUs 210, DUs 230, RUs 240 and Near-RT RICs 225. In some implementations, the SMO Framework 205 can communicate with a hardware aspect of a 4G RAN, such as an open eNB (O-eNB) 211, via an O1 interface. Additionally, in some implementations, the SMO Framework 205 can communicate directly with one or more DUs 230 and / or one or more RUs 240 via an O1 interface. The SMO Framework 205 also may include a Non-RT RIC 215 configured to support functionality of the SMO Framework 205.
[0067] The Non-RT RIC 215 may be configured to include a logical function that enables non-real-time control and optimization of RAN elements and resources, Artificial Intelligence / Machine Learning (AI / ML) workflows including model training and updates, or policy-based guidance of applications / features in the Near-RT RIC 225. The Non-RT RIC 215 may be coupled to or communicate with (such as via an A1 interface) the Near-RT RIC 225. The Near-RT RIC 225 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 (such as via an E2 interface) connecting one or more CUs 210, one or more DUs 230, or both, as well as an O-eNB, with the Near-RT RIC 225.
[0068] In some implementations, to generate AI / ML models to be deployed in the Near-RT RIC 225, the Non-RT RIC 215 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 225 and may be received at the SMO Framework 205 or the Non-RT RIC 215 from non-network data sources or from network functions. In some examples, the Non-RT RIC 215 or the Near-RT RIC 225 may be configured to tune RAN behavior or performance. For example, the Non-RT RIC 215 may monitor long-term trends and patterns for performance and employ AI / ML models to perform corrective actions through the SMO Framework 205 (such as reconfiguration via O1) or via creation of RAN management policies (such as A1 policies) .
[0069] FIG. 3 depicts aspects of an example BS 102 and a UE 104.
[0070] Generally, BS 102 includes various processors (e.g., 318, 320, 330, 338, and 340) , antennas 334a-t (collectively 334) , transceivers 332a-t (collectively 332) , which include modulators and demodulators, and other aspects, which enable wireless transmission of data (e.g., data source 312) and wireless reception of data (e.g., data sink 314) . For example, BS 102 may send and receive data between BS 102 and UE 104. BS 102 includes controller / processor 340, which may be configured to implement various functions described herein related to wireless communications. Note that the BS 102 may have a disaggregated architecture as described herein with respect to FIG. 2.
[0071] Generally, UE 104 includes various processors (e.g., 358, 364, 366, 370, and 380) , antennas 352a-r (collectively 352) , transceivers 354a-r (collectively 354) , which include modulators and demodulators, and other aspects, which enable wireless transmission of data (e.g., retrieved from data source 362) and wireless reception of data (e.g., provided to data sink 360) . UE 104 includes controller / processor 380, which may be configured to implement various functions described herein related to wireless communications.
[0072] In regards to an example downlink transmission, BS 102 includes a transmit processor 320 that may receive data from a data source 312 and control information from a controller / processor 340. The control information may be for the physical broadcast channel (PBCH) , physical control format indicator channel (PCFICH) , physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) , physical downlink control channel (PDCCH) , group common PDCCH (GC PDCCH) , and / or others. The data may be for the physical downlink shared channel (PDSCH) , in some examples.
[0073] Transmit processor 320 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. Transmit processor 320 may also generate reference symbols, such as for the primary synchronization signal (PSS) , secondary synchronization signal (SSS) , PBCH demodulation reference signal (DMRS) , and channel state information reference signal (CSI-RS) .
[0074] Transmit (TX) multiple-input multiple-output (MIMO) processor 330 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, and / or the reference symbols, if applicable, and may provide output symbol streams to the modulators (MODs) in transceivers 332a-332t. Each modulator in transceivers 332a-332t may process a respective output symbol stream to obtain an output sample stream. Each modulator may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. Downlink signals from the modulators in transceivers 332a-332t may be transmitted via the antennas 334a-334t, respectively.
[0075] In order to receive the downlink transmission, UE 104 includes antennas 352a-352r that may receive the downlink signals from the BS 102 and may provide received signals to the demodulators (DEMODs) in transceivers 354a-354r, respectively. Each demodulator in transceivers 354a-354r may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples. Each demodulator may further process the input samples to obtain received symbols.
[0076] RX MIMO detector 356 may obtain received symbols from all the demodulators in transceivers 354a-354r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. Receive processor 358 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 104 to a data sink 360, and provide decoded control information to a controller / processor 380.
[0077] In regards to an example uplink transmission, UE 104 further includes a transmit processor 364 that may receive and process data (e.g., for the PUSCH) from a data source 362 and control information (e.g., for the physical uplink control channel (PUCCH) ) from the controller / processor 380. Transmit processor 364 may also generate reference symbols for a reference signal (e.g., for the sounding reference signal (SRS) ) . The symbols from the transmit processor 364 may be precoded by a TX MIMO processor 366 if applicable, further processed by the modulators in transceivers 354a-354r (e.g., for SC-FDM) , and transmitted to BS 102.
[0078] At BS 102, the uplink signals from UE 104 may be received by antennas 334a-t, processed by the demodulators in transceivers 332a-332t, detected by a RX MIMO detector 336 if applicable, and further processed by a receive processor 338 to obtain decoded data and control information sent by UE 104. Receive processor 338 may provide the decoded data to a data sink 314 and the decoded control information to the controller / processor 340.
[0079] Memories 342 and 382 may store data and program codes for BS 102 and UE 104, respectively.
[0080] Scheduler 344 may schedule UEs for data transmission on the downlink and / or uplink.
[0081] In various aspects, BS 102 may be described as transmitting and receiving various types of data associated with the methods described herein. In these contexts, “transmitting” may refer to various mechanisms of outputting data, such as outputting data from data source 312, scheduler 344, memory 342, transmit processor 320, controller / processor 340, TX MIMO processor 330, transceivers 332a-t, antenna 334a-t, and / or other aspects described herein. Similarly, “receiving” may refer to various mechanisms of obtaining data, such as obtaining data from antennas 334a-t, transceivers 332a-t, RX MIMO detector 336, controller / processor 340, receive processor 338, scheduler 344, memory 342, and / or other aspects described herein.
[0082] In various aspects, UE 104 may likewise be described as transmitting and receiving various types of data associated with the methods described herein. In these contexts, “transmitting” may refer to various mechanisms of outputting data, such as outputting data from data source 362, memory 382, transmit processor 364, controller / processor 380, TX MIMO processor 366, transceivers 354a-t, antenna 352a-t, and / or other aspects described herein. Similarly, “receiving” may refer to various mechanisms of obtaining data, such as obtaining data from antennas 352a-t, transceivers 354a-t, RX MIMO detector 356, controller / processor 380, receive processor 358, memory 382, and / or other aspects described herein.
[0083] In some aspects, a processor may be configured to perform various operations, such as those associated with the methods described herein, and transmit (output) to or receive (obtain) data from another interface that is configured to transmit or receive, respectively, the data.
[0084] In various aspects, artificial intelligence (AI) processors 318 and 370 may perform AI processing for BS 102 and / or UE 104, respectively. The AI processor 318 may include AI accelerator hardware or circuitry such as one or more neural processing units (NPUs) , one or more neural network processors, one or more tensor processors, one or more deep learning processors, etc. The AI processor 370 may likewise include AI accelerator hardware or circuitry. As an example, the AI processor 370 may perform AI-based beam management, AI-based channel state feedback (CSF) , AI-based antenna tuning, and / or AI-based positioning (e.g., non-line of sight positioning prediction) . In some cases, the AI processor 318 may process feedback from the UE 104 (e.g., CSF) using hardware accelerated AI inferences and / or AI training. The AI processor 318 may decode compressed CSF from the UE 104, for example, using a hardware accelerated AI inference associated with the CSF. In certain cases, the AI processor 318 may perform certain RAN-based functions including, for example, network planning, network performance management, energy-efficient network operations, etc.
[0085] FIGS. 4A, 4B, 4C, and 4D depict aspects of data structures for a wireless communications network, such as wireless communications network 100 of FIG. 1.
[0086] In particular, FIG. 4A is a diagram 400 illustrating an example of a first subframe within a 5G (e.g., 5G NR) frame structure, FIG. 4B is a diagram 430 illustrating an example of DL channels within a 5G subframe, FIG. 4C is a diagram 450 illustrating an example of a second subframe within a 5G frame structure, and FIG. 4D is a diagram 480 illustrating an example of UL channels within a 5G subframe.
[0087] Wireless communications systems may utilize orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) on the uplink and downlink. Such systems may also support half-duplex operation using time division duplexing (TDD) . OFDM and single-carrier frequency division multiplexing (SC-FDM) partition the system bandwidth (e.g., as depicted in FIGS. 4B and 4D) into multiple orthogonal subcarriers. Each subcarrier may be modulated with data. Modulation symbols may be sent in the frequency domain with OFDM and / or in the time domain with SC-FDM.
[0088] A wireless communications frame structure may be frequency division duplex (FDD) , in which, for a particular set of subcarriers, subframes within the set of subcarriers are dedicated for either DL or UL. Wireless communications frame structures may also be time division duplex (TDD) , in which, for a particular set of subcarriers, subframes within the set of subcarriers are dedicated for both DL and UL.
[0089] In FIG. 4A and 4C, the wireless communications frame structure is TDD where D is DL, U is UL, and X is flexible for use between DL / UL. UEs may be configured with a slot format through a received slot format indicator (SFI) (dynamically through DL control information (DCI) , or semi-statically / statically through radio resource control (RRC) signaling) . In the depicted examples, a 10 ms frame is divided into 10 equally sized 1 ms subframes. Each subframe may include one or more time slots. In some examples, each slot may include 12 or 14 symbols, depending on the cyclic prefix (CP) type (e.g., 12 symbols per slot for an extended CP or 14 symbols per slot for a normal CP) . Subframes may also include mini-slots, which generally have fewer symbols than an entire slot. Other wireless communications technologies may have a different frame structure and / or different channels.
[0090] In certain aspects, the number of slots within a subframe (e.g., a slot duration in a subframe) is based on a numerology, which may define a frequency domain subcarrier spacing and symbol duration as further described herein. In certain aspects, given a numerology μ, there are 2μ slots per subframe. Thus, numerologies (μ) 0 to 6 may allow for 1, 2, 4, 8, 16, 32, and 64 slots, respectively, per subframe. In some cases, the extended CP (e.g., 12 symbols per slot) may be used with a specific numerology, e.g., numerology 2 allowing for 4 slots per subframe. The subcarrier spacing and symbol length / duration are a function of the numerology. The subcarrier spacing may be equal to 2μ×15 kHz, where μ is the numerology 0 to 6. As an example, the numerology μ=0 corresponds to a subcarrier spacing of 15 kHz, and the numerology μ=6 corresponds to a subcarrier spacing of 960 kHz. The symbol length / duration is inversely related to the subcarrier spacing. FIGS. 4A, 4B, 4C, and 4D provide an example of a slot format having 14 symbols per slot (e.g., a normal CP) and a numerology μ=2 with 4 slots per subframe. In such a case, the slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs.
[0091] As depicted in FIGS. 4A, 4B, 4C, and 4D, a resource grid may be used to represent the frame structure. Each time slot includes a resource block (RB) (also referred to as physical RBs (PRBs) ) that extends, for example, 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs) . The number of bits carried by each RE depends on the modulation scheme including, for example, quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM) .
[0092] As illustrated in FIG. 4A, some of the REs carry reference (pilot) signals (RS) for a UE (e.g., UE 104 of FIGS. 1 and 3) . The RS may include demodulation RS (DMRS) and / or channel state information reference signals (CSI-RS) for channel estimation at the UE. The RS may also include beam measurement RS (BRS) , beam refinement RS (BRRS) , and / or phase tracking RS (PT-RS) .
[0093] FIG. 4B illustrates an example of various DL channels within a subframe of a frame. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) , each CCE including, for example, nine RE groups (REGs) , each REG including, for example, four consecutive REs in an OFDM symbol.
[0094] A primary synchronization signal (PSS) may be within symbol 2 of particular subframes of a frame. The PSS is used by a UE (e.g., 104 of FIGS. 1 and 3) to determine subframe / symbol timing and a physical layer identity.
[0095] A secondary synchronization signal (SSS) may be within symbol 4 of particular subframes of a frame. The SSS is used by a UE to determine a physical layer cell identity group number and radio frame timing.
[0096] Based on the physical layer identity and the physical layer cell identity group number, the UE can determine a physical cell identifier (PCI) . Based on the PCI, the UE can determine the locations of the aforementioned DMRS. The physical broadcast channel (PBCH) , which carries a master information block (MIB) , may be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block (SSB) , and in some cases, referred to as a synchronization signal block (SSB) . The MIB provides a number of RBs in the system bandwidth and a system frame number (SFN) . The physical downlink shared channel (PDSCH) carries user data, broadcast system information not transmitted through the PBCH such as system information blocks (SIBs) , and / or paging messages.
[0097] As illustrated in FIG. 4C, some of the REs carry DMRS (indicated as R for one particular configuration, but other DMRS configurations are possible) for channel estimation at the base station. The UE may transmit DMRS for the PUCCH and DMRS for the PUSCH. The PUSCH DMRS may be transmitted, for example, in the first one or two symbols of the PUSCH. The PUCCH DMRS may be transmitted in different configurations depending on whether short or long PUCCHs are transmitted and depending on the particular PUCCH format used. UE 104 may transmit sounding reference signals (SRS) . The SRS may be transmitted, for example, in the last symbol of a subframe. The SRS may have a comb structure, and a UE may transmit SRS on one of the combs. The SRS may be used by a base station for channel quality estimation to enable frequency-dependent scheduling on the UL.
[0098] FIG. 4D illustrates an example of various UL channels within a subframe of a frame. The PUCCH may be located as indicated in one configuration. The PUCCH carries uplink control information (UCI) , such as scheduling requests, a channel quality indicator (CQI) , a precoding matrix indicator (PMI) , a rank indicator (RI) , and HARQ ACK / NACK feedback. The PUSCH carries data, and may additionally be used to carry a buffer status report (BSR) , a power headroom report (PHR) , and / or UCI.
[0099] Aspects Related to Indicating and / or Requesting WUS Monitoring Prediction via a WUS for DRX Communications
[0100] FIG. 5 depicts an example wireless communications system 500 for conveying an indication of WUS monitoring instances to monitor in accordance with aspects of the present disclosure. In some aspects, the wireless communications system 500 may implement aspects of or may be implemented by aspects of FIGS. 1-4D. For example, the wireless communications system 500 may include a network entity 502 and at least one device 504, where the network entity 502 may represent a base station or similar network entity as described with reference to FIGS. 1-3 (e.g., BS 102, BS 180, etc. ) and the device 504 may represent a UE or similar terminal device as described with reference to FIGS. 1-3 (e.g., UE 104) . Additionally, the network entity 502 and the device 504 may wirelessly communicate via a downlink communication link 506 (e.g., one or more carriers, a communication link 120, beamforming 182, etc. ) and via an uplink communication link 508 (e.g., one or more carriers, a communication link 120, beamforming 182, etc. ) . While only one (1) device 504 is depicted in the example of FIG. 5, the network entity 502 may communicate with multiple devices. In certain aspects, the device 504 may be configured for C-DRX mode operations as described herein.
[0101] In certain aspects, the device 504 (e.g., configured with C-DRX mode operation) may be configured to monitor a WUS outside DRX active time, where a set of WUS monitoring instances are associated with each DRX cycle. A WUS is a type of power saving mechanism that tries to save power for a device by letting the device to continue to sleep (e.g., no wake up) even for DRX-on duration periods / cycles when there is no data for the device, and the network entity 502 notifies the device of 'No Wake Up' (e.g., which may be referred to as a negative WUS indication) . When there is any data for the device, the network entity 502 may notify the device of 'Wake Up' (e.g., which may be referred to as a positive WUS indication) so that the device ‘wakes up’ and receives data during a DRX-on duration period / cycle. That is, the WUS indicates whether a medium access control (MAC) entity of the device 504 should start an on duration timer (e.g., drx-onDurationTimer) for a next DRX cycle. The WUS does not impact other timers (e.g., bwp-inactivityTimer, dataInactivityTimer, and sCellDeactivationTimer) . In some aspects, the WUS is a PDCCH defined by a DCI format 2_6 with a cyclic redundancy check (CRC) scrambled by a temporary identifier configured for DRX mode operations (e.g., a power savings radio network temporary identifier (PS-RNTI) ) . In some aspects, a WUS can be shared by a group of devices and is monitored in common WUS monitoring instances (e.g., common search space sets, common PDCCH MOs, etc. ) .
[0102] As described herein, in order to enable the network entity 502 to sweep one or more transmit beams when transmitting a WUS, the device 504 can be configured with WUS (e.g., configured to monitor for a WUS for DRX) based on multiple WUS monitoring instances (e.g., search space sets, downlink channel monitoring occasions (MOs) , etc. ) , where reference signals (e.g., control resource sets (CORESETs) ) associated with different such WUS monitoring instances may correspond to different TCI-states. For example, the multiple WUS monitoring instances may include multiple search space sets, where the search space sets include a plurality of downlink time-frequency resources. The device 504 may then perform a blind decode throughout the plurality of downlink time-frequency resources in the multiple search space sets to identify the WUS (e.g., PDCCH with DCI format 2_6) . That is, specific time-frequency resources (e.g., specific symbols) that include the WUS may be located somewhere in one or more of the multiple search space sets, and the device 504 may attempt to find the WUS based on receiving an indication of the multiple search space sets to monitor and blindly decoding the multiple search space sets.
[0103] Additionally, each search space set may include an associated CORESET (e.g., a set of time-frequency resources designed to carry control information, such as a PDCCH and / or DCI, in a search space set) , and the associated CORESET may correspond to a TCI-state, where the TCI-state may include a source reference signal and an intended quasi co-location (QCL) type to be applied.
[0104] The TCI-state may correspond to a downlink transmit beam from the network entity 502. For example, for beam management using TCI signaling framework, a beam for a target channel or signal to be received by the device 504 may be indicated by a TCI-state. That is, the network entity 502 may signal a DCI (e.g., in the associated CORESET of a search space set) to the device 504, where the DCI may select and / or indicate a TCI-state to be used for reception of a downlink channel. Subsequently, the device 504 may set one or more analog beamforming coefficients based on the indicated TCI-state for receiving the downlink channel on a corresponding downlink transmit beam.
[0105] In some aspects, each search space set may also correspond to an SSB. For example, different source reference signals of TCI-states with respect to corresponding CORESETs (e.g., linked with respective search space sets) may include a QCL relationship with respective SSBs. In some aspects, the QCL relationship may be a TypeD-QCL relationship, which may indicate a spatial receiver parameter between the source reference signals of a TCI-state and the SSBs. For example, the spatial receive parameters may include beamforming properties for received signals on the downlink, such as a dominant angle of arrival, average angle of arrival, or other properties of downlink transmit beams for the device 504 to receive.
[0106] Additionally, the network entity 502 may transmit a respective SSB via each downlink transmit beam (e.g., as part of an SSB beam sweep) . As such, each search space set may correspond to each downlink transmit beam based on which SSB is identified in each search space set and which SSB is received on which downlink transmit beam. For example, if a first search space set corresponds to a first SSB and a first downlink transmit beam is used to transmit the first SSB, the device 504 may determine the first search space set corresponds to the first downlink transmit beam.
[0107] Additionally or alternatively, different TCI-states may be associated with different downlink channel MOs (e.g., PDCCH MOs) of one or more corresponding search space sets (e.g., for PDCCH repetition purposes) . For example, a WUS may be configured based on a single search space set, while still supporting transmit-beam sweeping. If a single search space set is associated with multiple TCI-states across different MOs of the search space set, instead of the multiple WUS monitoring instances being different search space sets, the multiple WUS monitoring instances may be associated with different MOs in the single search space set or multiple such search space sets or different TCI-states and / or QCL-source reference signals associated with such different MOs in the single search space set or multiple such search space sets.
[0108] In some aspects, the network entity may transmit WUSs towards various devices in different directions using such swept transmit beams. For a particular device 504, whether the device 504 can detect a WUS in all or a subset of the configured WUS monitoring instances may be up to an implementation at the network entity 502. Accordingly, such a transmit beam sweep may require the device 504 to potentially carry out a large amount of RF turn-on and downlink channel (e.g., physical downlink control channel (PDCCH) ) detection efforts, thus costing additional device power (e.g., comparing to cases where a transmit beam sweep may be less necessary) .
[0109] In some aspects, considering WUS monitoring instances associated with an up-coming DRX-on cycle, it may be possible to predict the preferred transmit beam (s) associated with one or more of the WUS monitoring instances associated with one or more further away DRX-on cycle (s) (e.g., based on historical measurements) . For example, artificial intelligence (AI) and / or machine learning (ML) may be utilized for air-interface communications, such as for beam management (e.g., beam prediction in time, and / or spatial domain for overhead and latency reduction, beam selection accuracy improvement, etc. ) . In some aspects, the AI / ML approaches for selected sub use cases (e.g., beam management) need to be diverse enough to support various requirements on the network entity-device collaboration levels.
[0110] For AI / ML-based beam management, different beam management cases may be supported for characterization and baseline performance evaluations. For example, a first beam management case using AI / ML-based beam management may include a spatial-domain downlink beam prediction for a first set of beams (e.g., Set A of beams) based on measurement results of a second set of beams (e.g., Set B of beams) . Additionally or alternatively, a second beam management case using AI / ML-based beam management may include a temporal downlink beam prediction for the first set of beams (e.g., Set A of beams) based on the historic measurement results of the second set of beams (e.g., Set B of beams) . In some aspects, the beams in the first set and the beams in the second set may in a same frequency range. In some aspects, the beams in the second set may be a subset of the beams in the first set, or the beams in the first set may be different than the beams in the second set (e.g., Set A includes narrow beams and Set B includes wide beams) . In some aspects, the beams in the first set may be used for downlink beam prediction, and the beams in the second set may be used for beam measurement (s) .
[0111] As described herein, the prediction of preferred transmit beam (s) associated with one or more of the WUS monitoring instances associated with one or more further away DRX-on cycle (s) can be made by the network entity 502 and / or by the device 504. In the example of FIG. 5, the network entity 502 may perform the prediction and indicate the prediction to the device 504. For example, when such prediction is carried out by the network entity 502, the historical measurements used for the prediction may be based on device-reported characteristics (e.g., power measurements, signal quality measurements, etc. ) of synchronization signals transmitted by the network entity 502 (e.g., SSBs, CSI-RSs, etc. ) , such as via layer 1 (L1) -reference signal received power (RSRP) reports but is not limited thereto (e.g., other signal power and / or signal characteristic reports may be used) . Accordingly, the network entity 502 may signal the preferred transmit-beam (s) in one or more considered WUS monitoring instances associated with an up-coming DRX-on cycle.
[0112] To enable the prediction of preferred transmit-beams and in order to enable the network entity 502 to sweep a plurality of transmit beams when transmitting a WUS, the network entity 502 may transmit (e.g., via RRC signaling) a configuration 510 to the device 504, where the configuration 510 includes an indication of a plurality of sets of WUS monitoring instances (e.g., a first number of multiple search space sets, a first number of multiple PDCCH MOs, etc. ) for monitoring a DCI format associated with transmission of WUS signal, and CORESETs associated with different such WUS monitoring instances correspond to various different TCI-states and / or transmit beams. In some aspects, the plurality of sets of WUS monitoring instances may be associated with a plurality of DRX-on cycles, and each set of WUS monitoring instances (e.g., of the plurality of sets of WUS monitoring instances) may include a plurality of WUS monitoring instances. That is, the configuration 510 may include a set of WUS monitoring instances that are associated with each DRX-on cycle of the plurality of DRX-on cycles, thereby resulting in the plurality of sets of WUS monitoring instances.
[0113] In some aspects, the network entity 502 may configure and indicate the plurality of sets of WUS monitoring instances to the device 504 (e.g., via the configuration 510) , where the plurality of sets of WUS monitoring instances are configured and used for monitoring for a WUS for respective DRX-on cycles of the plurality of DRX-on cycles. For example, the device 504 may monitor for a first WUS using a first set of WUS monitoring instances associated with a first DRX-on cycle, may monitor for a second WUS using a second set of WUS monitoring instances associated with a second DRX-on cycle, may monitor for a third WUS using a third set of WUS monitoring instances associated with a third DRX-on cycle, etc., where each set of WUS monitoring instances include a same plurality of WUS monitoring instances (e.g., indicated in the configuration 510) .
[0114] Accordingly, in the example of FIG. 5, after receiving the configuration 510, the device 505 may monitor for and receive a first WUS 512 based on monitoring the plurality of WUS monitoring instances in a first set of the plurality of sets of WUS monitoring instances, where the first WUS 512 and the first set of WUS monitoring instances are associated with a first DRX-on cycle. The first WUS 512 may at least include a WUS indication 514, which may represent an indication of whether the device 504 is to start an on duration timer for the first DRX-on cycle (e.g., whether the device 504 should wake-up or not for the first DRX-on cycle) . In some aspects, the network entity 502 may send the first WUS 512 in each WUS monitoring instance of the plurality of WUS monitoring instances in the first set of WUS monitoring instances or may send the first WUS 512 in a subset (e.g., one or more) of the plurality of WUS monitoring instances in the first set of WUS monitoring instances.
[0115] As described previously, the network entity 502 may perform a prediction of preferred transmit beam (s) associated with one or more WUS monitoring instances of the plurality of WUS monitoring instances associated with one or more further away DRX-on cycle (s) (e.g., after the first DRX on-cycle) . That is, the network entity 502 may determine one or more WUS monitoring instances of the plurality of WUS monitoring instances (e.g., using the AI / ML-based beam management) , where the one or more WUS monitoring instances are associated with the preferred transmit beam (s) . For example, as described previously, the network entity 502 may determine the one or more WUS monitoring instances based on historical measurements received from the device 504, such as in one or more measurement report (s) 516 of synchronization signals, reference signals, and / or other signals sent by the network entity 502 and received by the device 504 (e.g., L1-RSRP report (s) ) . Additionally or alternatively, as will be described in greater detail with reference to FIG. 6, the device 504 may perform a prediction of preferred transmit beam (s) (e.g., based on receiving a request to perform the prediction from the network entity 502) and may send in an indication of prediction result (s) 518 to the network entity 502, and the network entity 502 may determine the one or more WUS monitoring instances based on the prediction result (s) 518.
[0116] Subsequently, the network entity 502 may indicate the one or more WUS monitoring instances (e.g., and associated transmit beam (s) ) to the device 504. For example, the network entity 502 may send an indication 520 of the one or more WUS monitoring instances (e.g., of the plurality of WUS monitoring instances) to the device 504 in the first WUS 512. Accordingly, the device 504 may monitor for at least one additional WUS 522 in at least one WUS monitoring instance of the one or more WUS monitoring instances (e.g., included in the indication 520) of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, where the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle. For example, for one or more DRX-on cycle (s) (e.g., after the first DRX-on cycle) , the device 504 may be expected to monitor for such DCI that includes WUS indications for the device 504 in the corresponding one or more WUS monitoring instances (e.g., search space sets, PDCCH MOs, etc. ) for the respective future DRX-on cycle (s) .
[0117] That is, rather than monitoring each WUS monitoring instance of the plurality of WUS monitoring instances for the at least one additional WUS 522 in at least one subsequent set of WUS monitoring instances of the plurality of sets of WUS monitoring instances (e.g., after the first set of WUS monitoring instances) , the device 504 may limit its monitoring to at least one WUS monitoring instance of the one or more WUS monitoring instances included in the indication 520 in the first WUS 512, where the at least one subsequent set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle. Thus, the device 504 may potentially reduce power consumption by monitoring the one or more WUS monitoring instances (e.g., included in the indication 520) for the at least one additional WUS 522 instead of monitoring each WUS monitoring instance of the plurality of WUS monitoring instances.
[0118] In some aspects, the network entity 502 may indicate the one or more WUS monitoring instances in the indication 520 in the first WUS 512 using different types of identifier (s) . For example, in the first WUS 512 decoded from at least one WUS monitoring instance of the plurality of WUS monitoring instances in the first set of WUS monitoring instances associated with the first DRX-on cycle, the device 504 may receive, from the network entity 502, suggested search space set identifier (s) (e.g., the indication 520 of the one or more WUS monitoring instances) out of the plurality of WUS monitoring instances (e.g., indicated in the configuration 510) . Additionally or alternatively, the device 504 may receive, from the network entity 502, selective TCI-state identifier (s) (e.g., the indication 520 of the one or more WUS monitoring instances) for CORESETs associated with the plurality of WUS monitoring instances.
[0119] In some aspects, for indicating the search space set identifier (s) , the network entity 502 may explicitly indicate one or more search space set identifiers in the indication 520. For example, the network entity 502 may assign and / or configure respective search space set identifiers for each search space set corresponding to the plurality of WUS monitoring instances (e.g., indicated in the configuration 510) . As an example, the network entity 502 may configure and / or indicate four (4) search space sets for the plurality of WUS monitoring instances (e.g., via RRC signaling) and may configure and / or indicate search space set IDs of {#1, #2, #5, #7} , respectively, for the four (4) search space sets.
[0120] In some aspects, the network entity 502 may then reorder the search space set identifiers corresponding to the plurality of WUS monitoring instances in an ascending / descending order based on determining which transmit beams of the network entity 502 are preferred from information provided in the one or more measurement report (s) 516 and / or the prediction result (s) 518 (e.g., which transmit beams from the network entity 502 in the measurement report (s) 516 and / or the prediction result (s) 518 that have a highest signal quality and / or are predicted to have a highest signal quality) . For example, the network entity 502 may reorder the four (4) search space sets into {1st, 2nd, 3rd, 4th} most preferred search space sets that the device 504 should monitor for the at least one additional WUS 522. Subsequently, the indication 520 may indicate and / or select one or more search space sets out of these four (4) search space sets (e.g., based on the reordering) .
[0121] In some aspects, the network entity 502 may signal such indication of the search space set identifier (s) in the indication 520 based on signaling explicit candidate search space set IDs, a bitmap, a combinatorial index, or a combination thereof. For example, based on the example provided previously where four (4) search space sets have configured search space set IDs of {#1, #2, #5, #7} , the network entity 502 may explicitly indicate one or more of the configured search space set ID (s) in the indication 520 that the device 504 is to monitor for the one or more WUS monitoring instances (e.g., a single search space set ID, such as search space set ID #5, or multiple search space set IDs, such as search space set IDs #2 and #5) .
[0122] For signaling the explicit search space set IDs, the network entity 502 may configure and / or indicate (e.g., via RRC signaling) a number of the search space set IDs that the device 504 is expected to receive in the indication 520. In some aspects, a DCI payload size for the device 504 regarding such indication of the explicit search space set IDs for the indication 520 may depend on both the indicated number of search space set IDs the device 504 expects to receive and the total number of search space sets configured and / or indicated for the plurality of WUS monitoring instances in the configuration 510. As an example, four (4) search space sets may be configured for the total number of search space sets in the configuration 510, and two (2) search space set IDs may be configured for the indicated number of search space set IDs that the device 504 expects to receive in the indication 520. Accordingly, the device 504 may expect four (4) bits for the indication 520 of the explicit search space set ID indication based on log2X, where ‘X’ represents the total number of configured search space sets (e.g., log24 = 2 bits per explicitly indicated search space set ID in the indication 520, resulting in four (4) bits in total for two (2) search space set IDs) .
[0123] Additionally or alternatively, for signaling a bitmap to indicate the search space set identifiers in the indication 520, the network entity 502 may not need to configure the number of search space set IDs that the device 504 is expected to receive in the indication 520. As such, the DCI payload size for the device 504 regarding such indication of the bitmap may depend on the total number of search space sets in the configuration 510, and which search space sets that the network entity 502 indicates in the indication 520 may be left up-to the network entity 502. For example, if four (4) total search space sets are configured for the plurality of WUS monitoring instances in the configuration 510, the network entity may signal a 4-bit bitmap in the indication 520 to indicate which search space sets the device 502 should monitor for the at least one additional WUS 522. As an example, the network entity 502 may signal a bitmap of 1000, 0100, 0010, 0001, 1100, 1010, 1001, 0110, 0101, 0011, 1110, 1011, 0111, or 1111, where ‘1’ indicates a search space set the device 504 should monitor for the at least one additional WUS 522 based on the configured search space set IDs. For example, using the example provided previously where four (4) search space sets are respectively configured with search space set IDs of {#1, #2, #5, #7} , a bitmap of ‘0110’ in the indication 520 may indicate that the device 504 should monitor the search space sets with the search space set IDs of #2 and #5. In some aspects, the network entity 502 may use the bitmap for the indication 520 if the total number of configured candidate search space set IDs is relatively small.
[0124] Additionally or alternatively, for signaling a combinatorial index to indicate the search space set identifiers in the indication 520, the network entity 502 may signal an index value in the indication 520 that selects a first number of search space sets (e.g., ‘K’ search space sets) out of the total number of configured search space sets (e.g., ‘N’ search space sets) based on a look-up table (e.g., RRC configured) . In some aspects, signaling the combinatorial index may result in a higher decoding complexity for the device 504 (e.g., compared to signaling the explicit search space set IDs or the bitmap) .
[0125] In some aspects, as described previously, the network entity 502 may indicate TCI-state identifier (s) in the indication 520 to signal the one or more WUS monitoring instances. For example, each TCI-state associated with a CORESET of each search space set (e.g., corresponding to the plurality of WUS monitoring instances indicated in the configuration 510) may include a TCI-state identifier. As an example, search space sets with configured search space set IDs of {#1, #2, #5, #7, #8, #9} that are considered for the total number of search space sets in the configuration 510 may include associated TCI-state IDs of {#5, #2, #3, #2, #7, #5} , respectively.
[0126] In some aspects, the network entity 502 may then reorder the associated TCI-state IDs in an ascending / descending order based on determining which transmit beams of the network entity 502 are preferred from information provided in the one or more measurement report (s) 516 and / or the prediction result (s) 518 (e.g., which transmit beams from the network entity 502 in the measurement report (s) 516 and / or the prediction result (s) 518 that have a highest signal quality and / or are predicted to have a highest signal quality) , where repetitive TCI-states may be removed. For example, based on the example provided previously, the network entity 502 may reorder the candidate TCI-state IDs as {#2, #3, #5, #7} which may further be considered as the {1st, 2nd, 3rd, 4th} most preferred TCI-state IDs that the device 504 should monitor for the at least one additional WUS 522. Accordingly, the indication 520 may indicate and / or select one or more TCI-state IDs out of these four (4) candidate TCI-state IDs (e.g., based on the reordering) .
[0127] Similar to the indication of the search space set identifiers described above, the signaling of the one or more TCI-state IDs in the indication 520 can be based on signaling explicit candidate TCI-state IDs, a bitmap, or a combinatorial index. In some aspects, whether the network entity 502 indicates search space sets or TCI-State IDs may be predefined or configured by the network entity 502.
[0128] As described previously, the configuration 510 may include a set of WUS monitoring instances (e.g., set of search space sets, set of PDCCH MOs, etc. ) that are associated with each DRX-on cycle of a plurality of DRX-on cycles, where each set of WUS monitoring instances includes a plurality of individual WUS monitoring instances. As such, the one or more WUS monitoring instances included in the indication 520 may refer to one or more individual WUS monitoring instances of each respective plurality of individual WUS monitoring instances. Based on the previously-described techniques, each of the individual WUS monitoring instances may be associated with a value, such as a search space set ID and / or a TCI-state ID. Thus, the indication 520 of the one or more WUS monitoring instances may include an indication of one or more values corresponding to one or more individual WUS monitoring instances (e.g., via an explicit indication of the values / IDs, a bitmap indicating the values / IDs, a combinatorial index indicating the values / IDs, or a combination thereof) , such as search space set IDs and / or TCI-state IDs for each of the one or more WUS monitoring instances of the set of WUS monitoring instances.
[0129] In some aspects, the network entity 502 may indicate a number of DRX-on cycles that are addressed and / or applicable for the indication 520 of the one or more WUS monitoring instances the device 504 is to use for monitoring for the at least one additional WUS 522. For example, the network entity 502 may indicate how many DRX-on cycles that the indication 520 of the one or more WUS monitoring instances is to be used by the device 504 in the first WUS 512 and / or in the indication 520.
[0130] In some aspects, the network entity 502 may indicate that the one or more WUS monitoring instances (e.g., indicated in the indication 520) are to be monitored by the device 504 for one future DRX-on cycle. For example, the network entity 502 may indicate that the device 504 is to monitor the one or more WUS monitoring instances for a single DRX-on cycle after the first DRX-on cycle, where the indication of the applicable single DRX-on cycle is addressed by the DCI that includes the first WUS 512 for the considered device 504. In some aspects, for using the one or more WUS monitoring instances indicated in the indication 520 for monitoring for the at least one additional WUS 522 for a single DRX-on cycle, the device 504 may expect identical DCI payload sizes for such indication regarding each DRX-on cycle.
[0131] Additionally or alternatively, the network entity 502 may indicate that the one or more WUS monitoring instances (e.g., indicated in the indication 520) are to be monitored by the device 504 for multiple future DRX-on cycles. For example, the network entity 502 may indicate that the device 504 is to monitor the one or more WUS monitoring instances for multiple DRX-on cycles after the first DRX-on cycle, where the indication of the applicable multiple DRX-on cycles is addressed by the DCI that includes the first WUS 512 for the considered device 504. In some aspects, for using the one or more WUS monitoring instances indicated in the indication 520 for monitoring for the at least one additional WUS 522 for multiple DRX-on cycles, the device 504 may expect such indication regarding selective DRX-on cycles.
[0132] As an example, supposing the number of future DRX-on cycles is three (3) , then the device 504 may expect the indication 520 of the one or more WUS monitoring instances to monitor in first, fourth, seventh, etc., DRX-on cycles. Additionally, indicating that the one or more WUS monitoring instances are to be monitored by the device 504 for multiple future DRX-on cycles may mean that a payload size for WUSs can be different for different DRX-on cycles. In some aspects, the network entity 502 may configure (e.g., RRC configure) the specific future DRX-on cycles for the multiple future DRX-on cycles. Additionally, indicating that the one or more WUS monitoring instances are to be monitored by the device 504 for multiple future DRX-on cycles may be further based on a number of search space set IDs and / or TCI-state IDs that the device 504 expects to receive in the indication 520 for each future DRX-on cycle being the same.
[0133] In some aspects, the device 504 may successfully decode the first WUS 512 and may identify the one or more WUS monitoring instances in the indication 520. Accordingly, the device 504 may use the one or more WUS monitoring instances to detect one or more WUSs for one or more future DRX-on cycles addressed in the indication 520 (e.g., for a single future DRX-on cycle or for multiple future DRX-on cycles) . That is, the device 504 may monitor the one or more WUS monitoring instances and may ignore the other WUS monitoring instances from the plurality of WUS monitoring instances indicated in the configuration 510 (e.g., aside from the one or more WUS monitoring instances) . In some aspects, if the device 504 is unable to successfully decode the first WUS 512 and / or unable to identify the one or more WUS monitoring instances in the indication 520, the device 504 may monitor the plurality of WUS monitoring instances indicated in the configuration 510 for detecting WUS (s) associated with future DRX-on cycles.
[0134] Additionally or alternatively, if the device 504 is unable to successfully decode the first WUS 512 and / or unable to identify the one or more WUS monitoring instances in the indication 520, the device 504 may follow a previously and most recently decoded WUS to determine which WUS monitoring instances should be monitored for detecting WUS (s) associated with future DRX-on cycles. For example, the device 504 may have received a previous WUS prior to the first WUS 512 and may have decoded the previous WUS to identify an indication of one or more previous WUS monitoring instances that the device 504 was intended to monitor for at least one previous DRX-on cycle associated with the previous WUS. Subsequently, the device 504 may use the one or more previous WUS monitoring instances to monitor for detecting the at least one additional WUS 522 based on being unable to successfully decode the first WUS 512 and / or being unable to identify the one or more WUS monitoring instances in the indication 520.
[0135] In some aspects, the network entity 502 may use a device-common field (e.g., UE-common field) per group-common (GC) -DCI for the indication 520. For example, instead of addressing the indication 520 in device-specific sub-fields of a DCI that includes a WUS, the GC-DCI may include a device-common field that includes the indication 520 that can be applicable for all the devices decoding the GC-DCI (e.g., for a group of devices centered around each other and / or located near each other) . In some aspects, a GC-DCI may be used for WUS transmissions (e.g., a WUS may be transmitted for a group of devices to indicate whether all devices in the group should wake-up or not) . The GC-DCI is described in greater detail with reference to FIGS. 7A-7C.
[0136] In some aspects, the device 504 may receive the indication 520 in the first WUS 512 irrespective of a positive indication (e.g., ‘Wake Up’ ) or negative indication (e.g., ‘No Wake Up’ ) for the WUS indication 514. For example, the device 504 may expect the indication 520 in the first WUS 512 despite whether the applicable WUS includes a positive or a negative wake-up indication (e.g., because the indication 520 is for monitoring for, receiving, and decoding one or more subsequent WUS (s) and not a current WUS) .
[0137] In some aspects, the device 504 may make default TypeD-QCL assumptions for downlink channels (e.g., PDCCHs or physical downlink shared channels (PDSCHs) , which may be generally referred to as PDxCHs) transmitted in DRX-on cycles based on which WUS monitoring instance (s) are used for receiving associated WUS (s) for the DRX-on cycles. For example, the indication 520 may identify a single TCI-state for the device 504 to monitor for WUS (s) for one or more future DRX-on cycle (s) . That is, the indication 520 may indicate a single TCI-state ID and / or one or more search space set ID (s) linked with a single TCI-state ID. Subsequently, the device 504 may monitor for a WUS for at least one of the future DRX-on cycles using one or more WUS monitoring instance (s) associated with the single TCI-state. If the device 504 detects the WUS and decodes a positive wake-up indication for the future DRX-on cycle, the device 504 may assume a TypeD-QCL relationship for a PDxCH during the future DRX-on cycle based on a TypeD-QCL source reference signal for the single TCI-state.
[0138] That is, the device 504 may determine which transmit beam from the network entity 502 is expected to carry a downlink channel during the future DRX-on cycle based on which transmit beam of the network entity 502 and / or WUS monitoring instance is used for transmitting a WUS with a positive wake-up indication for the future DRX-on cycle. For example, if the network entity 502 transmits the WUS via a first beam (e.g., corresponding to the single TCI-state) and the WUS includes a positive wake-up indication for a first DRX-on cycle associated with the WUS, then the device 504 may expect that the network entity 502 may transmit a PDxCH in the first DRX-on cycle via the first beam based on the TypeD-QCL assumption. In some aspects, the device 504 may decode a negative wake-up indication from the one or more WUS monitoring instances with respect to multiple TCI-states, but the device 504 may still make the TypeD-QCL assumption. For example, the device 504 may fail to receive the first WUS 512 that includes the indication 520 as described previously, so the device 504 may attempt beam sweeping for WUS detection to receive the at least one additional WUS 522. Additionally, a negative WUS may have no impact on the associated DRX-on cycle) .
[0139] In some aspects, the network entity 502 may provide dynamic updates for the indication 520 of the one or more WUS monitoring instances to the device 504 via MAC-control element (CE) and / or DCI signaling with respect to parameters for the indication 520. For example, information and / or parameters for the indication 520 previously described (e.g., total number of WUS monitoring instances, total number of search space set IDs, an indicated number of WUS monitoring instances or search space set IDs, etc. ) may be RRC configured, but the information and / or parameters may be updated and / or indicated via a downlink MAC-CE or DCI (e.g., downlink grant) . As an example, if the network entity 502 indicates search space set IDs in the indication 520 as described previously, the network entity 502 may use MAC-CE / DCI signaling to update the number of search space set IDs that the device 504 is to expect to be indicated in the indication 520 (e.g., based on the network entity 502 determining whether a moving speed for the device 504 is faster or slower) .
[0140] In some aspects, the techniques and signaling described with reference to FIG. 5 for the configuration 510 of the plurality of sets of WUS monitoring instances (e.g., and the plurality of WUS monitoring instances for each set of WUS monitoring instances) and the indication 520 of the one or more WUS monitoring instances may be extended to other types of transmit-beam sweeping for WUS detection. For example, if a single search space set is associated with multiple TCI-states across different MOs of the search space set as described previously, instead of associating the indication 520 of the one or more WUS monitoring instances with different search space sets, the indication 520 of the one or more WUS monitoring instances may be associated with different MOs or different TCI-states and / or QCL-sources associated with such different MOs.
[0141] In some aspects, a reserved bit-point may be used and / or included in subsequent WUS transmissions (e.g., after the first WUS 512) to indicate whether the device 504 should fall back to a mode of monitoring the plurality of WUS monitoring instances (e.g., indicated or configured for the plurality of sets of WUS monitoring instances included in the configuration 510) for a next DRX-on cycle and / or multiple future DRX cycles rather than monitoring the one or more WUS monitoring instances included in the indication 520. That is, if the indication 520 includes an indication that the device 504 is expected to monitor the one or more WUS monitoring instances for multiple future DRX-on cycles as described previously, the reserved bit-point may nullify or supersede the indication 520, such that the device 504 monitors the plurality of WUS monitoring instances for future DRX-on cycles after the reserved bit-point is received.
[0142] FIG. 6 depicts an example wireless communications system 600 for conveying a request of a WUS prediction in accordance with aspects of the present disclosure. In some aspects, the wireless communications system 600 may implement aspects of or may be implemented by aspects of FIGS. 1-5. For example, the wireless communications system 600 may include a network entity 602 and at least one device 604, where the network entity 602 may represent a base station or similar network entity as described with reference to FIGS. 1-3 and 5 (e.g., BS 102, BS 180, network entity 502, etc. ) and the device 604 may represent a UE or similar terminal device as described with reference to FIGS. 1-3 and 5 (e.g., UE 104, device 504, etc. ) . Additionally, the network entity 602 and the device 604 may wirelessly communicate via a downlink communication link 606 (e.g., one or more carriers, a communication link 120, beamforming 182, downlink communication link 506, etc. ) and via an uplink communication link 608 (e.g., one or more carriers, a communication link 120, beamforming 182, uplink communication link 508, etc. ) . While only one (1) device 604 is depicted in the example of FIG. 6, the network entity 602 may communicate with multiple devices.
[0143] Additionally, in the example of FIG. 6 and as described with reference to FIG. 5, the device 604 may be configured for C-DRX and / or DRX mode operations (e.g., periodically alternate between an active mode during DRX-on cycles and an inactive mode) . As described herein and with reference to FIG. 5, the device 604 may also be configured to monitor a WUS outside DRX active time to indicate whether the device 604 can continue to sleep during a corresponding DRX-on duration (e.g., if there is no data for the device 604) or if the device 604 should ‘wake up’ to receive data during the corresponding DRX-on duration.
[0144] As described herein and as described with reference to FIG. 5, in order to enable the network entity 602 to sweep one or more transmit beams when transmitting a WUS, the device 604 can be configured with WUS (e.g., configured to monitor for a WUS for DRX) based on multiple WUS monitoring instances (e.g., search space sets, downlink channel MOs, etc. ) , where reference signals (e.g., CORESETs) associated with different such WUS monitoring instances may correspond to different TCI-states.
[0145] In some aspects, considering WUS monitoring instances associated with an up-coming DRX-on cycle, it may be possible to predict the preferred transmit beam (s) associated with one or more of the WUS monitoring instances associated with one or more further away DRX-on cycle (s) (e.g., based on historical measurements) . For example, as described with reference to FIG. 5, AI and / or ML may be utilized for air-interface communications, such as for beam management (e.g., beam prediction in time, and / or spatial domain for overhead and latency reduction, beam selection accuracy improvement, etc. ) .
[0146] As described herein, the prediction of preferred transmit beam (s) associated with one or more of the WUS monitoring instances associated with one or more further away DRX-on cycle (s) can be made by the network entity 602 and / or by the device 604. In the example of FIG. 6, the device 604 may perform the prediction based on receiving a request from the network entity 602 and may indicate the prediction to the network entity 602.
[0147] As described previously with reference to FIG. 5, to enable the prediction of preferred transmit-beams by the device 604 and in order to enable the network entity 602 to sweep a plurality of transmit beams when transmitting a WUS, the network entity 602 may transmit (e.g., via RRC signaling) a configuration 610 to the device 604, where the configuration 610 may include the same information as the configuration 510 as described with reference to FIG. 5. Additionally, in the example of FIG. 6, after receiving the configuration 610, the device 605 may monitor for and receive a first WUS 612 based on monitoring the plurality of WUS monitoring instances in a first set of the plurality of sets of WUS monitoring instances.
[0148] As described previously, the device 604 may perform a prediction of preferred transmit beam (s) associated with one or more WUS monitoring instances of the plurality of WUS monitoring instances associated with one or more further away DRX-on cycle (s) (e.g., after the first DRX on-cycle) . When such prediction is to be carried out by the device 604, the network entity 602 may request for the device 604 to perform the prediction based on sending an indication 616 (e.g., a request) in the first WUS 612 for the device 604 to report one or more predictions corresponding to the plurality of WUS monitoring instances, and the device 604 may send an indication 618 that includes the one or more predictions after receiving such requests.
[0149] In some aspects, the device 604 may monitor for at least one additional WUS 620 in at least one WUS monitoring instance of the plurality of WUS monitoring instances based on the one or more predictions included in the indication 618, where the device 604 monitors for the least one additional WUS 620 in at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, and where the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle. For example, the device 504 may monitor for the at least one additional WUS 620 in the one or more WUS monitoring instances associated with the one or more predictions.
[0150] Additionally or alternatively, the device 604 performing the prediction of preferred transmit beam (s) may be jointly used with the indication signaling and techniques described with reference to FIG. 5. For example, the network entity 602 may send the indication 616 in the first WUS 612 to the device 604 to indicate for the device 604 to report the one or more predictions corresponding to the plurality of WUS monitoring instances, may receive the indication 618 of the one or more predictions, and may send a second WUS that includes an indication of one or more WUS monitoring instances for the device 604 to monitor for subsequent WUS (s) , where the one or more WUS monitoring instances are determined from the indication 618.
[0151] In some aspects, the network entity 602 may trigger the device-side prediction of the preferred transmit beams if measurement reports sent by the device 604 (e.g., historical measurements, L1-RSRP reports, etc. ) lack receive beam information for the device 604 and / or a number of beams addressed in such measurement reports is limited. Additionally, the device 604 may be triggered to send the indication 618 even if the first WUS 612 comprises a negative wake-up indication for the WUS indication 614 for a current DRX-on cycle. That is, the device 604 may receive the indication 616 from the first WUS 612 even if the device 604 decodes a negative wake-up indication for the WUS indication 614. Additionally or alternatively, the network entity 602 may activate and / or trigger such reports of the one or more predictions through other types of signaling (e.g., triggering / activating channel state information (CSI) reports via MAC-CE / DCI signaling) . However, such triggering and / or activation may only be received via signaling during active DRX-on cycles, which might be limited in certain scenarios for the device 604.
[0152] In the example of FIG. 6, in the first WUS 612 decoded from the plurality of WUS monitoring instances in the first set of WUS monitoring instances associated with the first DRX-on cycle, the device 604 may receive the indication 616 that includes the request for the device 604 to report the one or more predictions. Accordingly, in the indication 618 of the one or more predictions, the device 604 may report predicted characteristics (e.g., power measurements, signal quality measurements, SINR measurements, etc. ) of synchronization signals and / or reference signals sent by the network entity 602 and received by the device 604. For example, the device 604 may send L1-RSRP reports that include RSRP measurements of the synchronization signals and / or reference signals, L1-signal-to-interference-plus noise ratio (SINR) reports that include SINR measurements of the synchronization signals and / or reference signals, Top-K-reference signals with respect to L1-RSRP / L1-SINR reports (e.g., which ‘K’ reference signals have highest RSRP and / or SINR measurements, where ‘K’ is an integer) . In some aspects, the predicted characteristics of synchronization signals and / or reference signals may be indicated with respect to one or more reference signals (e.g., TypeD-QCL source reference signals) of TCI-states for CORESETs associated with the plurality of WUS monitoring instances (e.g., search space sets, PDCCH MOs, etc. ) for one or more DRX-on cycle (s) after the first DRX-on cycle.
[0153] In some aspects, the device 604 may include different types of reports and / or predictions in the indication 618. For example, the indication 618 may include one or more CSI report-based predictions for one or more WUS monitoring instances of the plurality of WUS monitoring instances (e.g., indicated in the configuration 610) . As an example, the device 604 may be preconfigured (e.g., RRC preconfigured) with a periodic CSI report setting associated with WUS reception, where a report quantity (e.g., reportQuantity) associated with the CSI report setting includes at least one of different types of quantities for the device 604 to report.
[0154] In some aspects, the report quantity for the periodic CSI report setting may indicate for the device 604 to report predicted future measurement reports (e.g., L1-RSRP reports, L1-SINR reports, or other types of measurement reports not explicitly listed herein) of one or more reference signals (e.g., TypeD-QCL source reference signals) of the TCI-states for the CORESETs associated with the plurality of WUS monitoring instances for one or more DRX-on cycle (s) after the first DRX-on cycle. Additionally or alternatively, the report quantity for the periodic CSI report setting may indicate for the device 604 to report top-K-resources (e.g., in terms of L1-RSRP, L1-SINR, or another type of measurement report) regarding the reference signals (e.g., TypeD-QCL source reference signals) of the TCI-states for the CORESETs associated with the plurality of WUS monitoring instances for one or more DRX-on cycle (s) after the first DRX-on cycle.
[0155] For the CSI report-based predictions, the first WUS 612 may include an additional single-bit indicating whether the device 604 should send the periodic CSI report during the corresponding DRX-on cycle (e.g., the first DRX-on cycle) and / or send the periodic CSI report in one or more DRX-on cycles later (e.g., a second DRX-on cycle, a third DRX-on cycle, etc. ) . In some aspects, whether the device 604 sends the periodic CSI report in the corresponding DRX-on cycle or in one or more DRX-on cycles later may be predefined or based on separate network configurations. If the periodic CSI report is to be transmitted in a few DRX-on cycles later, the indication 618 of the prediction results may take the DRX-on cycle where the CSI report is transmitted as the first DRX-on cycle instead of the DRX-on cycle where the considered WUS (e.g., the first WUS 612) was received. In some aspects, the device 604 may be configured and / or indicated to send the periodic CSI report a few DRX-on cycles later after receiving the first WUS 612 and associated indication 616 based on the device 604 starting measurements on synchronization signals and / or reference signals (e.g., SSBs, CSI-RSs, etc. ) with respect to time-series (e.g., once the first WUS 612 and associated indication 616 is received) for more reliable temporal prediction performance.
[0156] In some aspects, the indication 618 may include one or more MAC-CE based predictions. For example, the device 604 may report one or more of the information described previously (e.g., predicted future measurement reports, such as L1-RSRP reports and / or L1-SINR reports, and / or the top-K-resources) through an uplink MAC-CE. Similar to the CSI report-based predictions, and as an example, the first WUS 612 may include an additional single-bit indicating whether the device 604 should send the MAC-CE during the corresponding DRX-on cycle and / or send the MAC-CE in a few DRX-on cycles later. Additionally, whether the device 604 sends the MAC-CE in the corresponding DRX-on cycle or in a few DRX-on cycles later may be predefined or based on separate network configurations. If the MAC-CE is sent in a few DRX-on cycles later, the prediction results should take the DRX-on cycle where the MAC-CE is transmitted as the first DRX-on cycle instead of the DRX-on cycle where the considered WUS (e.g., the first WUS 612) was received.
[0157] In some aspects, the device 604 may have different expectations on an UL-grant when transmitting the indication 618 of the requested prediction results. For example, if the DRX-on cycle where the device 604 is to transmit the indication 618 (e.g., periodic CSI report, uplink MAC-CE, etc. ) is associated with a positive wake-up indication (e.g., the WUS indication 614 includes an indication for the device 604 to start the on duration timer) , the device 604 may expect a properly scheduled uplink channel (e.g., a physical uplink shared channel (PUSCH) , a physical uplink control channel (PUCCH) , etc. ) for transmitting the indication 618. Otherwise, the device 604 may expect a configured grant (CG) for an uplink channel (e.g., a CG-PUSCH) being configured for such transmission of the indication 618.
[0158] In some aspects, the network entity 602 may provide dynamic updates for the indication 616 of the one or more WUS monitoring instances to the device 604 via MAC-CE and / or DCI signaling with respect to parameters for the indication 616. For example, information and / or parameters for the indication 616 previously described (e.g., information and / or parameters for the periodic CSI report) may be RRC configured, but the information and / or parameters may be updated and / or indicated via a downlink MAC- CE or DCI (e.g., downlink grant) . As an example, the network entity 602 may use MAC-CE / DCI signaling to update the CSI report settings linked with the indication 616 (e.g., request to report the one or more predictions) in the first WUS 612. In some aspects, different candidate CSI report settings may be associated with different measurement resources and / or prediction targets and / or AI / ML functionality or model IDs.
[0159] Additionally, in some aspects, and as described with reference to FIG. 5, the configuration 610 of the plurality of sets of WUS monitoring instances (e.g., and the plurality of WUS monitoring instances for each set of WUS monitoring instances) and the indication 618 of the one or more predictions may be extended to other types of transmit-beam sweeping for WUS detection. For example, if a single search space set is associated with multiple TCI-states across different MOs of the search space set, instead of associating the configuration 610 of the plurality of sets of WUS monitoring instances with different search space sets, the configuration 610 of the plurality of sets of WUS monitoring instances may be associated with different MOs or different TCI-states and / or QCL-sources associated with such different MOs.
[0160] Example Aspects Associated with DRX Communications
[0161] FIGS. 7A, 7B, and 7C depict various example aspects of communications with DRX. For example, FIG. 7A depicts an example of a DRX configuration 700 with WUSs, FIG. 7B depicts an example of a configuration 701 for a WUS, and FIG. 7C depicts an example of a WUS monitoring instance configuration 702. In some aspects, the DRX configuration 700, the configuration 701 for a WUS, and the WUS monitoring instance configuration 702 may implement aspects of or may be implemented by aspects of FIGS. 1-6. For example, as described herein, a device (e.g., UE 104, device 504, device 604, or similar terminal device as described with reference to FIGs. 1-3 and 5-6) may be configured for C-DRX and / or DRX mode operations (e.g., periodically alternate between an active mode during DRX-on cycles and an inactive mode) for communications with a network entity (e.g., e.g., BS 102, BS 180, network entity 502, network entity 602, base station, or similar network entity as described with reference to FIGs. 1-3 and 5-6) , where the C-DRX and / or DRX mode operations are performed based on the DRX configuration 700, the configuration 701 for a WUS, and the WUS monitoring instance configuration 702.
[0162] In some aspects and as illustrated in the example of FIG. 7A, the device may be configured with DRX mode operation based on the DRX configuration 700 and may be configured to monitor for a WUS in a set of WUS monitoring instances 704 outside of one or more DRX-on cycles 706 (e.g., DRX active time (s) ) . For example, a set of WUS monitoring instances 704 may be associated with DRX-on cycle 706, where the DRX-on cycles 706 are part of respective DRX cycles. For example, a first set of WUS monitoring instances 704A may be associated with a first DRX-on cycle 706A, and the first DRX on-cycle 706A is part of a DRX cycle 708. Additionally, a second set of WUS monitoring instances 704B may be associated with a second DRX-on cycle 706B and a second DRX cycle (e.g., not illustrated in the example of FIG. 7A) .
[0163] A WUS may indicate whether a MAC entity for the device should start an on duration timer (e.g., drx-onDurationTimer) for a next DRX cycle. For example, a WUS received and decoded in the first set of WUS monitoring instances 704A may indicate whether the device (e.g., MAC entity of the device) should start the on duration timer for the first DRX-on cycle 706A. Additionally, the WUS may not impact other timers for the device (e.g., bwp-inactivityTimer, dataInactivityTimer, sCellDeactivationTimer, etc. )
[0164] In some aspects, the WUS may be a PDCCH defined by a DCI format 2_6 with a CRC scrambled by a PS-RNTI. Additionally, a WUS may be shared by a group of devices and may be monitored in common search space set sets (e.g., the sets of WUS monitoring instances 704) . In some aspects, a WUS may be configured on a primary cell (PCell) and / or a primary secondary cell (PSCell) . Additionally, a WUS may indicate dormancy behavior for (up to five (5) ) secondary cell (SCell) groups.
[0165] In the example of FIG. 7B, the configuration 701 for a WUS may include one or more device-specific fields that include a corresponding wake-up indication bit 710 and corresponding content fields 712. For example, a first device-specific field 714A may include a first wake-up indication bit 710A and a first content field 712A, a second device-specific field 714B may include a second wake-up indication bit 710B and a second content field 712B, etc., up to an n-th device-specific field that includes an n-th wake-up indication bit 710C and an n-th content field 712C. The one or more device-specific fields may be considered as a payload size 716 for the WUS. Additionally, the configuration 701 of the WUS may include a CRC 718.
[0166] In some aspects, the location of the wake-up indication bits 710 in the payload size 716 of the WUS may indicate a position of the device-specific fields 712. For example, the location of the wake-up indication bits 710, such as the time-frequency resources on which the wake-up indication bits 710 are transmitted within the payload size 716, may represent a start of each device-specific filed 712. Additionally, the WUS (e.g., PDCCH-WUS, DCI format 2_6, etc. ) can be shared by a group of devices, and each device in the group can be assigned with a device-specific field 712 in the DCI. In some aspects, the WUS may be used for SCell groups (e.g., up to five (5) ) for a dormancy behavior indication outside active time as described with reference to FIG. 7A. Additionally or alternatively, an indication for SCell groups for dormancy behavior during active time (e.g., by scheduling DCI) may be configured separately.
[0167] In some aspects, for monitoring of DCI format 2_6 (e.g., the WUS) , a device may be provided with a PS-RNTI for scrambling the CRC 718 of the DCI format 2_6. Additionally, the device may be provided with one or more common search spaces (CSSs) (e.g., Type3-PDCCH CSS (s) ) for monitoring for the DCI format 2_6 with the PS-RNTI. In some aspects, more than one search space set (s) may be configured for the DCI format 2_6, and associated CORESETs with the search space sets can have different TCI states (e.g., for WUS beam sweeping in a frequency range, such as the frequency range 2 (FR2) ) .
[0168] In some aspects, each device specific field 714 may include the wake-up indication bit 710 and an SCell dormancy bitmap 720 (e.g., in the content fields 712) . For example, once a device detects a DCI format 2_6 in a WUS monitoring instance, the device may find an assigned field for itself in the content fields 712 and / or SCell dormancy bitmap 720. In some aspects, the SCell dormancy bitmap 720 may be a configurable size (e.g., 0-5 bits) . Table 1 below indicates device behavior based on the wake-up indication bit 710.
[0169] Table 1-Device Behavior Based on WUS Indication
[0170] Additionally, the device may be provided with a time offset (e.g., ps_Offset) for DRX mode operations, where the time offset indicates a time that the device starts locating WUS monitoring instances for the DCI format 2_6 prior to a slot where a DRX cycle starts. In some aspects, the time offset may be a value between 0.125 milliseconds (ms) and 15ms (e.g., ps_offset∈ {0.125ms, 0.25ms, 0.375ms, …, 15ms} )
[0171] In the example of FIG. 7C, the WUS monitoring instance configuration 702 may include a search space set periodicity 724, a duration 726 of WUS monitoring instance (s) 728, one or more monitoring symbols 730 within the duration 726, a minimum time gap 732 between WUS monitoring instances 728 (e.g., based on a capability of the device) , a time offset 734, and a next occurring DRX cycle 736.
[0172] For the WUS monitoring instances 728, for each WUS monitoring instance 728 configured for monitoring for the DCI format 2_6 (e.g., configured search space sets) , the device may monitor the monitoring symbols 730 (e.g., PDCCH MOs) in the duration 726 starting at or after the time offset 734 (e.g., ps_Offset) and ending before a slot that an on duration timer (e.g., drx-onDurationTimer) would start (e.g., a slot n+1) . The minimum time gap 732 may be defined as a time duration before the slot that the on duration timer would start, within which the device is not required to monitor for the DCI format 2_6. In some aspects, the minimum time gap 732 may be a device capability and may be in units of slots (e.g., subcarrier spacing (SCS) dependent) . For example, for each SCS supported by a device, the device may report one value from two candidate values (e.g., maximum value of 3ms) .
[0173] If a device detects the DCI format 2_6 in at least one WUS monitoring instance 728 (e.g., in the one or more monitoring symbols 730) , the device may follow the indication in the device-specific field in the DCI as described in Table 1. Additionally or alternatively, if the device monitors the WUS monitoring instances 728 but no DCI format 2_6 is detected (e.g., discontinuous transmission (DTX) from a network entity and / or misdetection at the device) , a higher layer parameter (e.g., ps-WakeupOrNot) may indicate whether or not the device is to start the on duration timer for the next DRX cycle 736. If the higher layer parameter is not provided, the device may not start the on duration timer for the next DRX cycle 736.
[0174] If both short and long DRX cycles are configured for the device, the device may monitor for the DCI format 2_6 for the long DRX cycles. For DRX short cycles, the device may always start the on duration timer for the DRX short cycles. In some aspects, the device may not be required to monitor for the DCI format 2_6 during DRX active time.
[0175] In some aspects, the device may start the on duration timer for the next DRX cycle 736 if any of the following is true: a current active BWP is not configured to monitor for the DCI format 2_6; the device is not required to monitor a PDCCH for detection of the DCI format 2_6 (e.g., due to overlap with SSBs, other PDCCH occasions with different QCL-TypeD properties, measurement gap, BWP switching delay, etc. ) for all WUS monitoring instances; there are no WUS monitoring instances for a DRX cycle.
[0176] In some aspects, the device may or may not perform one or more background activities with DRX. For example, if DRX is configured, a corresponding device may not be required to perform radio resource management (RRM) measurement (s) other than during the DRX active time. If a DRX cycle is larger than a threshold (e.g., larger than 80ms) , the device may not expect CSI-RS resources for mobility are available other than during the DRX active time. Additionally or alternatively, for CSI measurement and reporting, if DRX is configured, the corresponding device may not be required to measure CSI other than during the DRX active time, and the device may not report CSI on a PUCCH (e.g., periodic / semi-periodic CSI report) other than during DRX active time.
[0177] In some aspects, if the on duration timer is not triggered by the DCI format 2_6 (e.g., due to lack of downlink traffic) , the device may be kept outside the DRX active time for a long duration. As such, the device may not perform RRM measurement (s) outside active time, and the mobility performance for the device may be degraded. Additionally, the device may not perform CSI measurement and reporting outside active time, and the link performance may be degraded or the beam-paired link may fail.
[0178] Table 2 indicates time-domain states associated with DRX:
[0179] Table 2-Time-Domain States for DRX
[0180] In some aspects, a device may perform RRM measurement (s) during a configured on-duration outside the DRX active time, and CSI-RS resources for mobility may be available during the configured on-duration outside the DRX active time. Additionally or alternatively, the device can perform CSI measurement and periodic CSI reporting during a configured on-duration. In some aspects, a higher layer parameter (e.g., PS_Periodic_CSI_TransmitOrNot) may enable or disable periodic CSI reporting for the device (e.g., other than L1-RSRP reporting) during the configured on-duration. Additionally or alternatively, another higher layer parameter (e.g., PS_Periodic_L1-RSRP_TransmitOrNot) may enable or disable periodic L1-RSRP reporting for beam management.
[0181] FIG. 8 depicts an example of a communications system 800 with DRX. In some aspects, the communications system 800 may implement aspects of or may be implemented by aspects of FIGS. 1-7C. For example, the communications system 800 may include a network entity 802, a first device 804A, and a second device 804B, where the network entity 802 may represent a base station or similar network entity as described with reference to FIGS. 1-3 and 5-7C (e.g., BS 102, BS 180, network entity 502, network entity 602, etc. ) and the device 804A and the device 804B may represen UEs or similar terminal devices as described with reference to FIGS. 1-3 and 5-7C (e.g., UE 104, device 504, device 604, etc. ) .
[0182] Additionally, in the example of FIG. 8 and as described with reference to FIGS. 5 and 6, the device 804A and the device 804B may be configured for C-DRX and / or DRX mode operations (e.g., periodically alternate between an active mode during DRX-on cycles and an inactive mode) . As described herein and with reference to FIGS. 5 and 6, the device 804A and the device 804B may also be configured to monitor a WUS outside DRX active time to indicate whether the device 804A and / or the device 804B can continue to sleep during a corresponding DRX-on duration (e.g., if there is no data for the device 804A and / or the device 804B) or if the device 804A and / or the device 804B should ‘wake up’ to receive data during the corresponding DRX-on duration.
[0183] In some aspects, the communications system 800 may represent CSI measurement and reporting for the device 804A and the device 804B when WUS is configured. Additionally, the device 804A and the device 804B may be provided with a higher layer parameter that enables or disables periodic CSI reporting during a configured on-duration for the respective devices (e.g., PS_Periodic_CSI_TransmitOrNot) . In the example of FIG. 8, the device 804A may be disabled from transmitting periodic CSI reports during the configured on-duration (e.g., PS_Periodic_CSI_TransmitOrNot = ‘disable’ ) , and the device 804B may be enabled to transmit periodic CSI reports during the configured on-duration (e.g., PS_Periodic_CSI_TransmitOrNot = ‘enable’ ) .
[0184] In the example of FIG. 8, the network entity 802 may transmit a plurality of CSI-RSs 806 (e.g., periodically) , where the device 804A and the device 804B are configured to send one or more CSI reports 808 (e.g., periodic CSI reports) for the CSI-RSs 806 based on whether a WUS 810 (e.g., DCI format 2_6) is received or not and based on the higher layer parameter. For example, the network entity 802 may send the WUS 810 prior to a DRX active time 812 for a DRX cycle 814, where the WUS 810 indicates for the device 804A and the device 804B to start an on duration timer for the DRX active time 812. Accordingly, based on detecting and receiving the WUS 810, the device 804A and the device 804B may perform one or more measurements 816 during the DRX active time 812 of the CSI-RS (s) 806 transmitted by the network entity 802. Subsequently, the device 804A may send one or more CSI reports 808A during the DRX active time 812 based on the one or more measurements 816, and the device 804B may send one or more CSI reports 808B during the DRX active time 812 based on the one or more measurements 816. In some aspects, the device 804A and the device 804B may refrain from performing any measurements at one or more time points 818 of CSI-RS 806 outside of the DRX active times.
[0185] In some aspects, during a WUS monitoring instance 820, the network entity 802 may refrain from sending a WUS to the device 804A and the device 804B. Even though no WUS is sent, a time duration 822 may be indicated by an on duration timer, but the time duration 822 is not a DRX active time. As such, based on not receiving the WUS and being disabled from transmitting periodic CSI reports during the configured on-duration, the device 804A may not send any CSI reports during the time duration 822. Additionally or alternatively, based on being enabled to transmit periodic CSI reports during the configured on-duration, the device 804B may perform one or more measurements 816 of the CSI-RS (s) 806 transmitted by the network entity 802 and may send one or more CSI reports 808B during the time duration 822.
[0186] Example Operations of Indicating and / or Requesting a Temporal Beam Prediction via a WUS for DRX Communications
[0187] FIG. 9 depicts an example of a DRX communications system 900 with a temporal beam prediction in accordance with aspects of the present disclosure. In some aspects, the DRX communications system 900 may implement aspects of or may be implemented by aspects of FIGS. 1-8. For example, a network entity may configure a plurality of sets of WUS monitoring instances 902 (e.g., the configuration 510 and the configuration 610 as described with reference to FIGS. 5 and 6, respectively) for a device, where each set of WUS monitoring instances (e.g., of the plurality of sets of WUS monitoring instances) includes a plurality of WUS monitoring instances 904. In some aspects, the plurality of WUS monitoring instances 904 may correspond to a plurality of transmit beams 906 as described previously with reference to FIG. 5. Additionally, the plurality of sets of WUS monitoring instances 902 may be associated with a plurality of DRX-on cycles 908. In some aspects, each WUS monitoring instance of the plurality of WUS monitoring instances 904 may include and / or correspond to a respective SSB.
[0188] As described herein, the network entity may send a first WUS to the device in one or more WUS monitoring instances of the plurality of WUS monitoring instances 904 for an associated first DRX-on cycle 908A, such that the device receives the first WUS via one or more of the transmit beams 906. For example, the network entity may send the first WUS in a second WUS monitoring instance 904B, which may correspond to a second transmit beam 906B. The first WUS may include an indication of whether the device starts an on duration timer for the first associated DRX-on cycle 908A. Additionally, in the example of FIG. 9, the first WUS may include an indication 910 of a third WUS monitoring instance 904C that the device is expected to monitor for at least one additional WUS of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, where the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle 908B after the first DRX-on cycle 908A.
[0189] In some aspects, the network entity may determine the third WUS monitoring instance 904C for the device to monitor for the at least one additional WUS based on historical measurements received from the device and / or a prediction report sent by the device as described with reference to FIG. 5. Additionally or alternatively, the device may determine the network entity is expected to send the at least one additional WUS in the third WUS monitoring instance 904C based on receiving a request to perform a prediction as described with reference to FIG. 6. Subsequently, prior to the at least one DRX-on cycle 908B, the device may monitor for and receive the at least one additional WUS in the third WUS monitoring instance 904C, which may correspond to a third transmit beam 906C.
[0190] In some aspects, the device may use a TypeD-QCL assumption for receiving a downlink channel from the network entity during the at least one DRX-on cycle 908B. For example, if the at least one additional WUS received based on monitoring the third WUS monitoring instance 904C includes a positive indication for the device to start the on duration timer for the at least one DRX-on cycle 908B, the device may use the third transmit beam 906C to also receive the downlink channel during the at least one DRX-on cycle 908B. Additionally, the plurality of WUS monitoring instances 904 may include a plurality of search space sets, a plurality of PDCCH MOs, or a combination thereof.
[0191] Example Operations of Entities in a Communications Network for Indicating a Temporal Beam Prediction via a WUS for DRX Communications
[0192] FIG. 10 depicts a process flow 1000 for communications in a network between a network entity and a device with an indication of a temporal beam prediction in accordance with aspects of the present disclosure. In some aspects, the process flow 1000 may implement aspects of or may be implemented by aspects of FIGS. 1-9. For example, the process flow may include a network entity 1002 and at least one device 1004, where the network entity 1002 may represent a base station or similar network entity as described with reference to FIGS. 1-3 and 5-9 (e.g., BS 102, BS 180, network entity 502, network entity 602, network entity 802, etc. ) and the device 1004 may represent a UE or similar terminal device as described with reference to FIGS. 1-3 and 5-9 (e.g., UE 104, device 504, device 604, device 804, etc. ) . In some aspects, the process flow 1000 may represent the network entity 1002 sending an indication of a temporal beam prediction to the device 1004 as described with reference to FIG. 5.
[0193] In the following description of the process flow 1000, the operations between the network entity 1002 and the device 1004 may be performed in different orders or at different times. Certain operations may also be left out of the process flow 1000, or other operations may be added to the process flow 1000. It is to be understood that while the network entity 1002 and the device 1004 are shown performing a number of the operations of the process flow 1000, any wireless device may perform the operations shown.
[0194] At 1006, the device 1004 may receive, from the network entity 1002, a configuration (e.g., the configuration 510 as described with reference to FIG. 5) of a plurality of sets of WUS monitoring instances, where the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles and where each set of WUS monitoring instances (e.g., of the plurality of sets of WUS monitoring instances) includes a plurality of WUS monitoring instances. In some aspects, the plurality of WUS monitoring instances may include a plurality of search space sets, a plurality of PDCCH MOs, or a combination thereof. In some aspects, the device 1004 may receive the configuration via RRC signaling. Additionally or alternatively, the device 1004 may receive the configuration via a MAC-CE, a DCI message, or a combination thereof.
[0195] At 1008, the device 1004 may send, to the network entity 1002, one or more measurement reports of signals received from the network entity 1002 (e.g., the measurement report (s) 516 as described with reference to FIG. 5) . For example, the one or more measurement reports of signals received from the network entity 1002 may include characteristics of SSBs received from the network entity 1002 (e.g., power measurements and / or signal quality measurements of the SSBs) , characteristics of CSI-RSs received from the network entity 1002 (e.g., power measurements and / or signal quality measurements of the CSI-RSs) , L1 measurement reports of reference signals (e.g., L1-RSRP reports, L1-SINR reports, etc. ) received from the network entity 1002, or a combination thereof.
[0196] At 1010, the device 1004 may send, to the network entity 1002, a report of prediction results associated with the one or more WUS monitoring instances (e.g., the prediction result (s) 518 as described with reference to FIG. 5) .
[0197] At 1012, the network entity 1002 may determine one or more WUS monitoring instances for the device 1004 to monitor for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, where the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after a first DRX-on cycle. For example, the network entity 1002 may determine the one or more WUS monitoring instances based on the one or more measurement reports. Additionally or alternatively, the network entity 1002 may determine the one or more WUS monitoring instances based on the report of prediction results.
[0198] At 1014, the device 1004 may receive, from the network entity 1002, a first WUS (e.g., the first WUS 512 as described with reference to FIG. 5) prior to a first DRX-on cycle of the plurality of DRX-on cycles. In some aspects, the first WUS may include an indication of whether to start an on duration timer for the first DRX-on cycle (e.g., the WUS indication 514 as described with reference to FIG. 5) and an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances (e.g., the indication 520 as described with reference to FIG. 5) . In some aspects, the indication of the one or more WUS monitoring instances may include an indication of one or more search space sets associated with the one or more WUS monitoring instances, an indication of a PDCCH MO associated with a search space set, an indication of one or more TCI-states associated with a search space set, or a combination thereof.
[0199] In some aspects, the indication of whether to start the on duration timer may indicate for the device 1004 to not start the on duration timer for the first DRX-on cycle. Additionally or alternatively, the indication of whether to start the on duration timer may indicate to start the on duration timer for the first DRX-on cycle.
[0200] In some aspects, the indication of the one or more WUS monitoring instances may include one or more respective search space set identifiers associated with the one or more WUS monitoring instances or one or more TCI-state identifiers associated with the one or more WUS monitoring instances. In some aspects, the indication of the one or more WUS monitoring instances may include one or more identifiers associated with the one or more WUS monitoring instances, a bitmap indicating the one or more WUS monitoring instances, a combinatorial index indicating the one or more WUS monitoring instances, or a combination thereof.
[0201] In some aspects, the first WUS may include a common field for a plurality of devices, where the plurality of devices includes the device 1004. Additionally, the common field may include the indication of the one or more WUS monitoring instances.
[0202] At 1016, the device 1004 may receive an indication of a number of identifiers to expect for the one or more identifiers associated with the one or more WUS monitoring instances. In some aspects, the device 1004 may receive the indication of the number of identifiers to expect via RRC signaling, a MAC-CE, a DCI message, or a combination thereof.
[0203] At 1018, the device 1004 may monitor for at least one additional WUS (e.g., the at least one additional WUS 522 as described with reference to FIG. 5) in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, where the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0204] In some aspects, the at least one set of WUS monitoring instances may be a single set of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle may be a single DRX-on cycle. In some aspects, each WUS that can be received in the single set of WUS monitoring instances may include a same payload size.
[0205] Additionally or alternatively, the at least one set of WUS monitoring instances may include multiple sets of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle may include multiple DRX-on cycles associated with the multiple sets of WUS monitoring instances. In some aspects, the device 1004 may monitor for the at least one additional WUS based on an expectation to monitor the multiple sets of WUS monitoring instances, a configuration of a number of sets of WUS monitoring instances corresponding to the multiple sets of WUS monitoring instances (e.g., signaled via RRC signaling, a MAC-CE, a DCI message, or a combination thereof) , a number of the one or more WUS monitoring instances being the same for each set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, or a combination thereof.
[0206] In some aspects, the device 1004 may monitor for the at least one additional WUS in at least one WUS monitoring instance of the plurality of WUS monitoring instances other than the one or more WUS monitoring instances based on an unsuccessful decode of the first WUS, an unsuccessful identification of the one or more WUS monitoring instances indicated in the first WUS (e.g., the device 1004 may successfully decode part of the first WUS, such as the indication on whether to start the on duration timer, but may unsuccessfully decode other parts of the first WUS, such as the indication of the one or more WUS monitoring instances) , or a combination thereof.
[0207] In some aspects, the device 1004 may receive, from the network entity 1002, a second WUS after reception of the first WUS, where the second WUS includes an indication of whether to start the on duration timer for a second DRX-on cycle corresponding to the second WUS and an indication of one or more second WUS monitoring instances of the plurality of WUS monitoring instances. Subsequently, the device 1004 may monitor, after reception of the second WUS, for the at least one additional WUS in in the at least one WUS monitoring instance of the one or more WUS monitoring instances based on an unsuccessful decode of the second WUS, an unsuccessful identification of the one or more second WUS monitoring instances indicated in the second WUS, or a combination thereof.
[0208] At 1020, the network entity 1002 may send, to the device 1004, the at least one additional WUS in the at least one WUS monitoring instance of the one or more WUS monitoring instances of the at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances.
[0209] In some aspects, the device 1004 may receive, from the network entity 1002, the at least one additional WUS (e.g., a second WUS) based on monitoring the at least one WUS monitoring instance. In some aspects, the at least one additional WUS may include an indication of whether to start the on duration timer for a second DRX-on cycle corresponding to the at least one additional WUS and an indication to monitor the plurality of WUS monitoring instances for a subsequent set of WUS monitoring instances associated with a DRX-on cycle after the second DRX-on cycle.
[0210] At 1022, the device 1004 may ignore remaining WUS monitoring instances of the plurality of WUS monitoring instances, aside from the one or more WUS monitoring instances, to monitor for and receive the at least one additional WUS based on successful reception and decode of the first WUS comprising the indication of the one or more WUS monitoring instances.
[0211] At 1024, the device 1004 may receive, from the network entity 1002, a downlink channel in the at least one DRX-on cycle after the first DRX-on cycle. For example, the device 1004 may receive, from the network entity 1002, the at least one additional WUS (e.g., a second WUS) via a first beam associated with a first WUS monitoring instance of the one or more WUS monitoring instances, where the at least one additional WUS includes an indication to start the on duration timer for a second DRX-on cycle of the plurality of DRX-on cycles, and the device 1004 may receive, from the network entity 1002 in the second DRX-on cycle, the downlink channel via the first beam.
[0212] Example Operations of Entities in a Communications Network for Requesting a Temporal Beam Prediction via a WUS for DRX Communications
[0213] FIG. 11 depicts a process flow 1100 for communications in a network between a network entity and a device with a request of a temporal beam prediction in accordance with aspects of the present disclosure. In some aspects, the process flow 1100 may implement aspects of or may be implemented by aspects of FIGS. 1-9. For example, the process flow may include a network entity 1102 and at least one device 1104, where the network entity 1102 may represent a base station or similar network entity as described with reference to FIGS. 1-3 and 5-9 (e.g., BS 102, BS 180, network entity 502, network entity 602, network entity 802, etc. ) and the device 1104 may represent a UE or similar terminal device as described with reference to FIGS. 1-3 and 5-9 (e.g., UE 104, device 504, device 604, device 804, etc. ) . In some aspects, the process flow 1100 may represent the network entity 1102 requesting the device 1104 to determine a temporal beam prediction as described with reference to FIG. 6.
[0214] In the following description of the process flow 1100, the operations between the network entity 1102 and the device 1104 may be performed in different orders or at different times. Certain operations may also be left out of the process flow 1100, or other operations may be added to the process flow 1100. It is to be understood that while the network entity 1102 and the device 1104 are shown performing a number of the operations of the process flow 1100, any wireless device may perform the operations shown.
[0215] At 1106, the device 1104 may receive, from the network entity 1102, a configuration (e.g., the configuration 610 as described with reference to FIG. 6) of a plurality of sets of WUS monitoring instances, where the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles and where each set of WUS monitoring instances (e.g., of the plurality of sets of WUS monitoring instances) includes a plurality of WUS monitoring instances. In some aspects, the plurality of WUS monitoring instances may include a plurality of search space sets, a plurality of PDCCH MOs, or a combination thereof. In some aspects, the device 1104 may receive the configuration via RRC signaling. Additionally or alternatively, the device 1104 may receive the configuration via a MAC-CE, a DCI message, or a combination thereof.
[0216] At 1108, the device 1104 may receive a configuration for a periodic CSI report setting associated with reception of WUSs. In some aspects, the configuration for the periodic CSI report setting may be received via RRC signaling, a MAC CE, a DCI message, or a combination thereof.
[0217] At 1110, the device 1104 may receive, from the network entity 1102, a first WUS (e.g., the first WUS 612 as described with reference to FIG. 6) prior to a first DRX-on cycle of the plurality of DRX-on cycles, where the first WUS includes an indication of whether to start an on duration timer for the first DRX-on cycle (e.g., the WUS indication 614 as described with reference to FIG. 6) and an indication to report one or more predictions corresponding to the plurality of WUS monitoring instances (e.g., the indication 616 as described with reference to FIG. 6) . In some aspects, the indication to report the one or more predictions may include a bit indicating whether the device 1104 is to send the indication of the one or more predictions in the first DRX-on cycle or in a DRX-on cycle after the first DRX-on cycle.
[0218] In some aspects, the one or more predictions may include one or more predicted channel characteristics of each WUS monitoring instance of the plurality of WUS monitoring instances. For example, the one or more predicted channel characteristics of each WUS monitoring instance may include an L1-RSRP measurement, an L1-SINR measurement, or a combination thereof associated with one or more QCL source reference signals of one or more TCI-states for one or more CORESETs associated with each WUS monitoring instance.
[0219] At 1112, the device 1104 may receive, from the network entity 1102, a configured grant for an uplink shared channel based on the indication of whether to start the on duration timer for the first DRX-on cycle comprises a negative indication to not start the on duration timer.
[0220] At 1114, the device 1104 may send, to the network entity 1102, an indication of the one or more predictions (e.g., the indication 618 as described with reference to FIG. 6) . In some aspects, the indication of the one or more predictions may include an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances. In some aspects, the device 1104 may send the indication of the one or more predictions in a CSI report based on reception of the configuration for the periodic CSI report setting at 1108. Additionally or alternatively, the device 1104 may send the indication of the one or more predictions in an uplink MAC-CE.
[0221] In some aspects, the indication of whether to start the on duration timer for the first DRX-on cycle may include a positive indication to start the on duration timer, and the device 1104 may send the indication of the one or more predictions in a scheduled uplink channel based on the positive indication. Additionally or alternatively, the indication of whether to start the on duration timer for the first DRX-on cycle may include a negative indication to start the on duration timer, and the device 1104 may send the indication of the one or more predictions in the uplink shared channel based on reception of the configured grant at 1112.
[0222] At 1116, the device 1104 and / or the network entity 1102 may determine one or more WUS monitoring instances of the plurality of WUS monitoring instances based on the one or more predictions. For example, at 1116A, the network entity 1102 may determine one or more WUS monitoring instances of the plurality of WUS monitoring instances based on the one or more predictions. Additionally or alternatively, at 1116B, the device 1104 may determine one or more WUS monitoring instances of the plurality of WUS monitoring instances based on the one or more predictions.
[0223] At 1118, if the network entity 1102 determines the one or more WUS monitoring instances of the plurality of WUS monitoring instances based on the one or more predictions, the device 1104 may monitor for a second WUS.
[0224] At 1120, the device 1104 may receive, from the network entity 1102, the second WUS prior to a second DRX-on cycle of the plurality of DRX-on cycles, where the second WUS includes an indication of whether to start the on duration timer for the second DRX-on cycle and an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances. For example, the indication of the one or more WUS monitoring instances may include an indication of a ranked list of resources in terms of: L1-RSRP measurements, L1-SINR measurements, or a combination thereof associated with one or more QCL source reference signals of one or more TCI-states for one or more CORESETs associated with the one or more WUS monitoring instances.
[0225] At 1122, the device 1104 may monitor for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, where the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0226] At 1124, the network entity 1102 may send, to the device 1104, the at least one additional WUS in the at least one WUS monitoring instance of the one or more WUS monitoring instances of the at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances.
[0227] Example Operations
[0228] FIG. 12 shows a method 1200 for wireless communications by an apparatus, such as UE 104 of FIGS. 1 and 3.
[0229] Method 1200 begins at block 1205 with receiving, from a network entity, a configuration of a plurality of sets of WUS monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances.
[0230] Method 1200 then proceeds to block 1210 with receiving, from the network entity, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles, wherein the first WUS comprises: an indication of whether to start an on duration timer for the first DRX-on cycle; and an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances.
[0231] Method 1200 then proceeds to block 1215 with monitoring for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0232] In certain aspects, method 1200 further includes sending, to the network entity, one or more measurement reports of signals received from the network entity.
[0233] In certain aspects, the one or more measurement reports of signals received from the network entity comprise characteristics of SSBs received from the network entity, characteristics of CSI-RSs received from the network entity, layer 1 measurement reports of reference signals received from the network entity, or a combination thereof.
[0234] In certain aspects, method 1200 further includes sending, to the network entity, a report of prediction results associated with the one or more WUS monitoring instances.
[0235] In certain aspects, the indication of the one or more WUS monitoring instances comprises one or more respective search space set identifiers associated with the one or more WUS monitoring instances or one or more TCI state identifiers associated with the one or more WUS monitoring instances.
[0236] In certain aspects, the indication of the one or more WUS monitoring instances comprises one or more identifiers associated with the one or more WUS monitoring instances, a bitmap indicating the one or more WUS monitoring instances, a combinatorial index indicating the one or more WUS monitoring instances, or a combination thereof.
[0237] In certain aspects, method 1200 further includes receiving an indication of a number of identifiers to expect for the one or more identifiers.
[0238] In certain aspects, the at least one set of WUS monitoring instances is a single set of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle is a single DRX-on cycle.
[0239] In certain aspects, each WUS that can be received in the single set of WUS monitoring instances comprises a same payload size.
[0240] In certain aspects, the at least one set of WUS monitoring instances comprises multiple sets of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle comprises multiple DRX-on cycles associated with the multiple sets of WUS monitoring instances.
[0241] In certain aspects, block 1215 includes monitoring for the at least one additional WUS based on an expectation to monitor the multiple sets of WUS monitoring instances, a configuration of a number of sets of WUS monitoring instances corresponding to the multiple sets of WUS monitoring instances, a number of the one or more WUS monitoring instances being the same for each set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, or a combination thereof.
[0242] In certain aspects, method 1200 further includes ignoring remaining WUS monitoring instances of the plurality of WUS monitoring instances, aside from the one or more WUS monitoring instances, to monitor for the at least one additional WUS, based on successful reception and decode of the first WUS comprising the indication of the one or more WUS monitoring instances.
[0243] In certain aspects, block 1215 includes monitoring for the at least one additional WUS in at least one WUS monitoring instance of the plurality of WUS monitoring instances other than the one or more WUS monitoring instances based on an unsuccessful decode of the first WUS, an unsuccessful identification of the one or more WUS monitoring instances indicated in the first WUS, or a combination thereof.
[0244] In certain aspects, method 1200 further includes receiving, from the network entity, a second WUS after reception of the first WUS, the second WUS comprising: an indication of whether to start the on duration timer for a second DRX-on cycle corresponding to the second WUS; and an indication of one or more second WUS monitoring instances of the plurality of WUS monitoring instances; and wherein block 1215 includes monitoring, after reception of the second WUS, for the at least one additional WUS in in the at least one WUS monitoring instance of the one or more WUS monitoring instances based on an unsuccessful decode of the second WUS, an unsuccessful identification of the one or more second WUS monitoring instances indicated in the second WUS, or a combination thereof.
[0245] In certain aspects, the first WUS comprises a common field for a plurality of devices; the common field comprises the indication of the one or more WUS monitoring instances; and the plurality of devices comprises the apparatus.
[0246] In certain aspects, the indication of whether to start the on duration timer indicates to not start the on duration timer.
[0247] In certain aspects, the indication of whether to start the on duration timer indicates to start the on duration timer.
[0248] In certain aspects, method 1200 further includes receiving, from the network entity, a second WUS via a first beam associated with a first WUS monitoring instance of the one or more WUS monitoring instances, wherein the second WUS comprises an indication to start the on duration timer for a second DRX-on cycle of the plurality of DRX-on cycles.
[0249] In certain aspects, method 1200 further includes receiving, from the network entity, in the second DRX-on cycle, a downlink channel via the first beam.
[0250] In certain aspects, block 1205 includes receiving the configuration via RRC signaling.
[0251] In certain aspects, block 1205 includes comprises receiving the configuration via a MAC-CE, a DCI message, or a combination thereof.
[0252] In certain aspects, the plurality of WUS monitoring instances comprise a plurality of search space sets, a plurality of PDCCH monitoring occasions, or a combination thereof.
[0253] In certain aspects, method 1200 further includes receiving, from the network entity, a second WUS based on monitoring the at least one WUS monitoring instance, the second WUS comprising: an indication of whether to start the on duration timer for a second DRX-on cycle corresponding to the second WUS; and an indication to monitor the plurality of WUS monitoring instances for a subsequent set of WUS monitoring instances associated with a DRX-on cycle after the second DRX-on cycle.
[0254] In certain aspects, the indication of the one or more WUS monitoring instances comprises an indication of one or more search space sets associated with the one or more WUS monitoring instances, an indication of a PDCCH monitoring occasion associated with a search space set, an indication of one or more TCI-states associated with a search space set, or a combination thereof.
[0255] In certain aspects, method 1200 may be performed by the apparatus to realize one or more technical effects or solutions to the aforementioned technical problem (s) . For example, based on method 1200, the apparatus may reduce power consumption by monitoring for the at least one additional WUS using the one or more WUS monitoring instances indicated in a first WUS rather than monitoring each of the plurality of WUS monitoring instances.
[0256] In certain aspects, method 1200, or any aspect related to it, may be performed by an apparatus, such as communications device 1600 of FIG. 16, which includes various components operable, configured, or adapted to perform the method 1200. Communications device 1600 is described below in further detail.
[0257] Note that FIG. 12 is just one example of a method, and other methods including fewer, additional, or alternative operations are possible consistent with this disclosure.
[0258] FIG. 13 shows a method 1300 for wireless communications by an apparatus, such as BS 102 of FIGS. 1 and 3, or a disaggregated base station as discussed with respect to FIG. 2.
[0259] Method 1300 begins at block 1305 with sending, to a device, a configuration of a plurality of sets of WUS monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances.
[0260] Method 1300 then proceeds to block 1310 with sending, to the device, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles, wherein the first WUS comprises: an indication of whether to start an on duration timer for the first DRX- on cycle; and an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances.
[0261] Method 1300 then proceeds to block 1315 with sending, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0262] In certain aspects, method 1300 further includes receiving, from the device, one or more measurement reports of signals sent by the apparatus.
[0263] In certain aspects, method 1300 further includes determining the one or more WUS monitoring instances based on the one or more measurement reports.
[0264] In certain aspects, the one or more measurement reports of signals sent by the apparatus comprise characteristics of SSBs sent by the apparatus, characteristics of CSI-RSs sent by the apparatus, layer 1 measurement reports of reference signals sent by the apparatus, or a combination thereof.
[0265] In certain aspects, method 1300 further includes receiving, from the device, a report of prediction results associated with the one or more WUS monitoring instances.
[0266] In certain aspects, method 1300 further includes determining the one or more WUS monitoring instances based on the report of prediction results.
[0267] In certain aspects, the indication of the one or more WUS monitoring instances comprises one or more respective search space set identifiers associated with the one or more WUS monitoring instances or one or more TCI state identifiers associated with the one or more WUS monitoring instances.
[0268] In certain aspects, the indication of the one or more WUS monitoring instances comprises one or more identifiers associated with the one or more WUS monitoring instances, a bitmap indicating the one or more WUS monitoring instances, a combinatorial index indicating the one or more WUS monitoring instances, or a combination thereof.
[0269] In certain aspects, method 1300 further includes sending an indication of a number of identifiers for the device to expect for the one or more identifiers.
[0270] In certain aspects, the at least one set of WUS monitoring instances is a single set of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle is a single DRX-on cycle.
[0271] In certain aspects, each WUS that can be sent in the single set of WUS monitoring instances comprises a same payload size.
[0272] In certain aspects, the at least one set of WUS monitoring instances comprises multiple sets of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle comprises multiple DRX-on cycles associated with the multiple sets of WUS monitoring instances.
[0273] In certain aspects, method 1300 further includes sending a configuration of a number of sets of WUS monitoring instances corresponding to the multiple sets of WUS monitoring instances.
[0274] In certain aspects, the first WUS comprises a common field for a plurality of devices; the common field comprises the indication of the one or more WUS monitoring instances; and the plurality of devices comprises the device.
[0275] In certain aspects, the indication of whether to start the on duration timer indicates for the device to not start the on duration timer.
[0276] In certain aspects, the indication of whether to start the on duration timer indicates for the device to start the on duration timer.
[0277] In certain aspects, block 1315 includes sending, a second WUS via a first beam associated with a first WUS monitoring instance of the one or more WUS monitoring instances, wherein the second WUS comprises an indication for the device to start the on duration timer for a second DRX-on cycle of the plurality of DRX-on cycles; and wherein the method further 1300 comprises sending, to the device, in the second DRX-on cycle, a downlink channel via the first beam.
[0278] In certain aspects, block 1305 includes sending the configuration via RRC signaling.
[0279] In certain aspects, block 1305 includes sending the configuration via a MAC-CE, a DCI message, or a combination thereof.
[0280] In certain aspects, the plurality of WUS monitoring instances comprise a plurality of search space sets, a plurality of PDCCH monitoring occasions, or a combination thereof.
[0281] In certain aspects, the at least one additional WUS comprises a second WUS comprising: an indication of whether to start the on duration timer for a second DRX-on cycle corresponding to the second WUS; and an indication for the device to monitor the plurality of WUS monitoring instances for a subsequent set of WUS monitoring instances associated with a DRX-on cycle after the second DRX-on cycle.
[0282] In certain aspects, the indication of the one or more WUS monitoring instances comprises an indication of one or more search space sets associated with the one or more WUS monitoring instances, an indication of a PDCCH monitoring occasion associated with a search space set, an indication of one or more TCI-states associated with a search space set, or a combination thereof.
[0283] In certain aspects, method 1300, or any aspect related to it, may be performed by an apparatus, such as communications device 1700 of FIG. 17, which includes various components operable, configured, or adapted to perform the method 1300. Communications device 1700 is described below in further detail.
[0284] Note that FIG. 13 is just one example of a method, and other methods including fewer, additional, or alternative operations are possible consistent with this disclosure.
[0285] FIG. 14 shows a method 1400 for wireless communications by an apparatus, such as UE 104 of FIGS. 1 and 3.
[0286] Method 1400 begins at block 1405 with receiving, from a network entity, a configuration of a plurality of sets of WUS monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances.
[0287] Method 1400 then proceeds to block 1410 with receiving, from the network entity, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles, wherein the first WUS comprises: an indication of whether to start an on duration timer for the first DRX-on cycle; and an indication to report one or more predictions corresponding to the plurality of WUS monitoring instances.
[0288] Method 1400 then proceeds to block 1415 with sending, to the network entity, an indication of the one or more predictions.
[0289] In certain aspects, the one or more predictions comprise one or more predicted channel characteristics of each WUS monitoring instance of the plurality of WUS monitoring instances.
[0290] In certain aspects, the one or more predicted channel characteristics of each WUS monitoring instance comprise a L1-RSRP measurement, an L1-SINR measurement, or a combination thereof associated with one or more QCL source reference signals of one or more TCI-states for one or more CORESETs associated with each WUS monitoring instance.
[0291] In certain aspects, method 1400 further includes determining one or more WUS monitoring instances of the plurality of WUS monitoring instances based on the one or more predictions.
[0292] In certain aspects, method 1400 further includes monitoring for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0293] In certain aspects, method 1400 further includes receiving, from the network entity, a second WUS prior to a second DRX-on cycle of the plurality of DRX-on cycles, the second WUS comprising: an indication of whether to start the on duration timer for the second DRX-on cycle; and an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances.
[0294] In certain aspects, method 1400 further includes monitoring for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0295] In certain aspects, the indication of the one or more predictions comprises an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances.
[0296] In certain aspects, method 1400 further includes monitoring for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0297] In certain aspects, the indication of the one or more WUS monitoring instances comprises an indication of a ranked list of resources in terms of: L1-RSRP measurements, L1-SINR measurements, or a combination thereof associated with one or more QCL source reference signals of one or more TCI-states for one or more CORESETs associated with the one or more WUS monitoring instances.
[0298] In certain aspects, the indication to report the one or more predictions comprises a bit indicating whether to send the indication of the one or more predictions in the first DRX-on cycle or in a DRX-on cycle after the first DRX-on cycle.
[0299] In certain aspects, block 1415 includes sending the indication of the one or more predictions in a CSI report.
[0300] In certain aspects, method 1400 further includes receiving a configuration for a periodic CSI report setting associated with reception of WUSs, and wherein the indication of the one or more predictions is sent in the CSI report based on reception of the configuration.
[0301] In certain aspects, block 1415 includes sending the indication of the one or more predictions in an uplink MAC-CE.
[0302] In certain aspects, the indication of whether to start the on duration timer for the first DRX-on cycle comprises a positive indication to start the on duration timer; and block 1415 includes sending the indication of the one or more predictions in a scheduled uplink channel.
[0303] In certain aspects, the indication of whether to start the on duration timer for the first DRX-on cycle comprises a negative indication to not start the on duration timer; and the method 1400 further comprises receiving, from the network entity, a configured grant for an uplink shared channel, and wherein the indication of the one or more predictions is sent in the uplink shared channel based on reception of the configured grant.
[0304] In certain aspects, block 1405 includes receiving the configuration via RRC signaling.
[0305] In certain aspects, block 1405 includes receiving the configuration via a MAC-CE, a DCI message, or a combination thereof.
[0306] In certain aspects, the plurality of WUS monitoring instances comprise a plurality of search space sets, a plurality of PDCCH monitoring occasions, or a combination thereof.
[0307] In certain aspects, method 1400 may be performed by the apparatus to realize one or more technical effects or solutions to the aforementioned technical problem (s) . For example, based on method 1400, the apparatus may reduce power consumption by monitoring for the at least one additional WUS using the one or more WUS monitoring instances indicated and / or determined from the one or more predictions rather than monitoring each of the plurality of WUS monitoring instances.
[0308] In certain aspects, method 1400, or any aspect related to it, may be performed by an apparatus, such as communications device 1600 of FIG. 16, which includes various components operable, configured, or adapted to perform the method 1400. Communications device 1600 is described below in further detail.
[0309] Note that FIG. 14 is just one example of a method, and other methods including fewer, additional, or alternative operations are possible consistent with this disclosure.
[0310] FIG. 15 shows a method 1500 for wireless communications by an apparatus, such as BS 102 of FIGS. 1 and 3, or a disaggregated base station as discussed with respect to FIG. 2.
[0311] Method 1500 begins at block 1505 with sending, to a device, a configuration of a plurality of sets of WUS monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances.
[0312] Method 1500 then proceeds to block 1510 with sending, to the device, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles, wherein the first WUS comprises: an indication of whether to start an on duration timer for the first DRX- on cycle; and an indication to report one or more predictions corresponding to the plurality of WUS monitoring instances.
[0313] Method 1500 then proceeds to block 1515 with receiving, from the device, an indication of the one or more predictions.
[0314] In certain aspects, the one or more predictions comprise one or more predicted channel characteristics of each WUS monitoring instance of the plurality of WUS monitoring instances.
[0315] In certain aspects, the one or more predicted channel characteristics of each WUS monitoring instance comprise a L1-RSRP measurement, an L1-SINR measurement, or a combination thereof associated with one or more QCL source reference signals of one or more TCI-states for one or more CORESETs associated with each WUS monitoring instance.
[0316] In certain aspects, method 1500 further includes determining one or more WUS monitoring instances of the plurality of WUS monitoring instances based on the one or more predictions.
[0317] In certain aspects, method 1500 further includes sending, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0318] In certain aspects, method 1500 further includes determining one or more WUS monitoring instances of the plurality of WUS monitoring instances based on the one or more predictions.
[0319] In certain aspects, method 1500 further includes sending, to the device, a second WUS prior to a second DRX-on cycle of the plurality of DRX-on cycles, the second WUS comprising: an indication of whether to start the on duration timer for the second DRX-on cycle; and an indication of the one or more WUS monitoring instances.
[0320] In certain aspects, method 1500 further includes sending, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0321] In certain aspects, the indication of the one or more predictions comprises an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances.
[0322] In certain aspects, method 1500 further includes sending, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0323] In certain aspects, the indication of the one or more WUS monitoring instances comprises an indication of a ranked list of resources in terms of L1-RSRP measurements, L1-SINR measurements, or a combination thereof associated with one or more QCL source reference signals of one or more TCI-states for one or more CORESETs associated with the one or more WUS monitoring instances.
[0324] In certain aspects, the indication to report the one or more predictions comprises a bit indicating whether the device is to send the indication of the one or more predictions in the first DRX-on cycle or in a DRX-on cycle after the first DRX-on cycle.
[0325] In certain aspects, block 1515 includes receiving the indication of the one or more predictions in a CSI report.
[0326] In certain aspects, method 1500 further includes sending a configuration for a periodic CSI report setting associated with reception of WUSs at the device, and wherein the indication of the one or more predictions is received in the CSI report based on communication of the configuration.
[0327] In certain aspects, block 1515 includes receiving the indication of the one or more predictions in an uplink MAC-CE.
[0328] In certain aspects, the indication of whether to start the on duration timer for the first DRX-on cycle comprises a positive indication to start the on duration timer; and block 1515 includes receiving the indication of the one or more predictions in a scheduled uplink channel.
[0329] In certain aspects, the indication of whether to start the on duration timer for the first DRX-on cycle comprises a negative indication to not start the on duration timer; and the method 1500 further comprises sending, to the device, a configured grant for an uplink shared channel, and wherein the indication of the one or more predictions is received in the uplink shared channel based on communication of the configured grant.
[0330] In certain aspects, block 1505 includes sending the configuration via RRC signaling.
[0331] In certain aspects, block 1505 includes sending the configuration via a MAC-CE, a DCI message, or a combination thereof.
[0332] In certain aspects, the plurality of WUS monitoring instances comprise a plurality of search space sets, a plurality of PDCCH monitoring occasions, or a combination thereof.
[0333] In certain aspects, method 1500, or any aspect related to it, may be performed by an apparatus, such as communications device 1700 of FIG. 17, which includes various components operable, configured, or adapted to perform the method 1500. Communications device 1700 is described below in further detail.
[0334] Note that FIG. 15 is just one example of a method, and other methods including fewer, additional, or alternative operations are possible consistent with this disclosure.
[0335] Example Communications Devices
[0336] FIG. 16 depicts aspects of an example communications device 1600. In some aspects, communications device 1600 is a user equipment, such as UE 104 described above with respect to FIGS. 1 and 3.
[0337] The communications device 1600 includes a processing system 1605 coupled to a transceiver 1675 (e.g., a transmitter and / or a receiver) . The transceiver 1675 is configured to transmit and receive signals for the communications device 1600 via an antenna 1680, such as the various signals as described herein. The processing system 1605 may be configured to perform processing functions for the communications device 1600, including processing signals received and / or to be transmitted by the communications device 1600.
[0338] The processing system 1605 includes one or more processors 1610. In various aspects, the one or more processors 1610 may be representative of one or more of receive processor 358, transmit processor 364, TX MIMO processor 366, and / or controller / processor 380, as described with respect to FIG. 3. The one or more processors 1610 are coupled to a computer-readable medium / memory 1640 via a bus 1670. In certain aspects, the computer-readable medium / memory 1640 is configured to store instructions (e.g., computer-executable code) that when executed by the one or more processors 1610, enable and cause the one or more processors 1610 to perform the method 1200 described with respect to FIG. 12, or any aspect related to it, including any operations described in relation to FIG. 12; and the method 1400 described with respect to FIG. 14, or any aspect related to it, including any operations described in relation to FIG. 14. Note that reference to a processor performing a function of communications device 1600 may include one or more processors performing that function of communications device 1600, such as in a distributed fashion.
[0339] In the depicted example, computer-readable medium / memory 1640 stores code for receiving 1645, code for monitoring 1650, code for sending 1655, code for ignoring 1660, and code for determining 1665. Processing of the code 1645-1665 may enable and cause the communications device 1600 to perform the method 1200 described with respect to FIG. 12, or any aspect related to it; and the method 1400 described with respect to FIG. 14, or any aspect related to it.
[0340] The one or more processors 1610 include circuitry configured to implement (e.g., execute) the code stored in the computer-readable medium / memory 1640, including circuitry for receiving 1615, circuitry for monitoring 1620, circuitry for sending 1625, circuitry for ignoring 1630, and circuitry for determining 1635. Processing with circuitry 1615-1635 may enable and cause the communications device 1600 to perform the method 1200 described with respect to FIG. 12, or any aspect related to it; and the method 1400 described with respect to FIG. 14, or any aspect related to it.
[0341] More generally, means for communicating, transmitting, sending or outputting for transmission may include the transceivers 354, antenna (s) 352, transmit processor 364, TX MIMO processor 366, AI processor 370, and / or controller / processor 380 of the UE 104 illustrated in FIG. 3, transceiver 1675 and / or antenna 1680 of the communications device 1600 in FIG. 16, and / or one or more processors 1610 of the communications device 1600 in FIG. 16. Means for communicating, receiving or obtaining may include the transceivers 354, antenna (s) 352, receive processor 358, AI processor 370, and / or controller / processor 380 of the UE 104 illustrated in FIG. 3, transceiver 1675 and / or antenna 1680 of the communications device 1600 in FIG. 16, and / or one or more processors 1610 of the communications device 1600 in FIG. 16.
[0342] FIG. 17 depicts aspects of an example communications device 1700. In some aspects, communications device 1700 is a network entity, such as BS 102 of FIGS. 1 and 3, or a disaggregated base station as discussed with respect to FIG. 2.
[0343] The communications device 1700 includes a processing system 1705 coupled to a transceiver 1755 (e.g., a transmitter and / or a receiver) and / or a network interface 1765. The transceiver 1755 is configured to transmit and receive signals for the communications device 1700 via an antenna 1760, such as the various signals as described herein. The network interface 1765 is configured to obtain and send signals for the communications device 1700 via communications link (s) , such as a backhaul link, midhaul link, and / or fronthaul link as described herein, such as with respect to FIG. 2. The processing system 1705 may be configured to perform processing functions for the communications device 1700, including processing signals received and / or to be transmitted by the communications device 1700.
[0344] The processing system 1705 includes one or more processors 1710. In various aspects, one or more processors 1710 may be representative of one or more of receive processor 338, transmit processor 320, TX MIMO processor 330, and / or controller / processor 340, as described with respect to FIG. 3. The one or more processors 1710 are coupled to a computer-readable medium / memory 1730 via a bus 1750. In certain aspects, the computer-readable medium / memory 1730 is configured to store instructions (e.g., computer-executable code) that when executed by the one or more processors 1710, enable and cause the one or more processors 1710 to perform the method 1300 described with respect to FIG. 13, or any aspect related to it, including any operations described in relation to FIG. 13; and the method 1500 described with respect to FIG. 15, or any aspect related to it, including any operations described in relation to FIG. 15. Note that reference to a processor of communications device 1700 performing a function may include one or more processors of communications device 1700 performing that function, such as in a distributed fashion.
[0345] In the depicted example, the computer-readable medium / memory 1730 stores code for sending 1735, code for receiving 1740, and code for determining 1745. Processing of the code 1735-1745 may enable and cause the communications device 1700 to perform the method 1300 described with respect to FIG. 13, or any aspect related to it; and the method 1500 described with respect to FIG. 15, or any aspect related to it.
[0346] The one or more processors 1710 include circuitry configured to implement (e.g., execute) the code stored in the computer-readable medium / memory 1730, including circuitry for sending 1715, circuitry for receiving 1720, and circuitry for determining 1725. Processing with circuitry 1715-1725 may enable and cause the communications device 1700 to perform the method 1300 described with respect to FIG. 13, or any aspect related to it; and the method 1500 described with respect to FIG. 15, or any aspect related to it.
[0347] More generally, means for communicating, transmitting, sending or outputting for transmission may include the transceivers 332, antenna (s) 334, transmit processor 320, TX MIMO processor 330, AI processor 318, and / or controller / processor 340 of the BS 102 illustrated in FIG. 3, transceiver 1755, antenna 1760, and / or network interface 1765 of the communications device 1700 in FIG. 17, and / or one or more processors 1710 of the communications device 1700 in FIG. 17. Means for communicating, receiving or obtaining may include the transceivers 332, antenna (s) 334, receive processor 338, AI processor 318, and / or controller / processor 340 of the BS 102 illustrated in FIG. 3, transceiver 1755, antenna 1760, and / or network interface 1765 of the communications device 1700 in FIG. 17, and / or one or more processors 1710 of the communications device 1700 in FIG. 17.
[0348] Example Clauses
[0349] Implementation examples are described in the following numbered clauses:
[0350] Clause 1: A method for wireless communications by an apparatus comprising: receiving, from a network entity, a configuration of a plurality of sets of WUS monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances; receiving, from the network entity, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles, wherein the first WUS comprises: an indication of whether to start an on duration timer for the first DRX-on cycle; and an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances; and monitoring for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0351] Clause 2: The method of Clause 1, further comprising sending, to the network entity, one or more measurement reports of signals received from the network entity.
[0352] Clause 3: The method of Clause 2, wherein the one or more measurement reports of signals received from the network entity comprise characteristics of SSBs received from the network entity, characteristics of CSI-RSs received from the network entity, layer 1 measurement reports of reference signals received from the network entity, or a combination thereof.
[0353] Clause 4: The method of any one of Clauses 1-3, further comprising sending, to the network entity, a report of prediction results associated with the one or more WUS monitoring instances.
[0354] Clause 5: The method of any one of Clauses 1-4, wherein the indication of the one or more WUS monitoring instances comprises one or more respective search space set identifiers associated with the one or more WUS monitoring instances or one or more TCI state identifiers associated with the one or more WUS monitoring instances.
[0355] Clause 6: The method of any one of Clauses 1-5, wherein the indication of the one or more WUS monitoring instances comprises one or more identifiers associated with the one or more WUS monitoring instances, a bitmap indicating the one or more WUS monitoring instances, a combinatorial index indicating the one or more WUS monitoring instances, or a combination thereof.
[0356] Clause 7: The method of Clause 6, further comprising receiving an indication of a number of identifiers to expect for the one or more identifiers.
[0357] Clause 8: The method of any one of Clauses 1-7, wherein the at least one set of WUS monitoring instances is a single set of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle is a single DRX-on cycle.
[0358] Clause 9: The method of Clause 8, wherein each WUS that can be received in the single set of WUS monitoring instances comprises a same payload size.
[0359] Clause 10: The method of any one of Clauses 1-9, wherein the at least one set of WUS monitoring instances comprises multiple sets of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle comprises multiple DRX-on cycles associated with the multiple sets of WUS monitoring instances.
[0360] Clause 11: The method of Clause 10, wherein monitoring for the at least one additional WUS comprises monitoring for the at least one additional WUS based on an expectation to monitor the multiple sets of WUS monitoring instances, a configuration of a number of sets of WUS monitoring instances corresponding to the multiple sets of WUS monitoring instances, a number of the one or more WUS monitoring instances being the same for each set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, or a combination thereof.
[0361] Clause 12: The method of any one of Clauses 1-11, further comprising ignoring remaining WUS monitoring instances of the plurality of WUS monitoring instances, aside from the one or more WUS monitoring instances, to monitor for the at least one additional WUS, based on successful reception and decode of the first WUS comprising the indication of the one or more WUS monitoring instances.
[0362] Clause 13: The method of any one of Clauses 1-12, wherein monitoring for the at least one additional WUS comprises monitoring for the at least one additional WUS in at least one WUS monitoring instance of the plurality of WUS monitoring instances other than the one or more WUS monitoring instances based on an unsuccessful decode of the first WUS, an unsuccessful identification of the one or more WUS monitoring instances indicated in the first WUS, or a combination thereof.
[0363] Clause 14: The method of any one of Clauses 1-13, further comprising receiving, from the network entity, a second WUS after reception of the first WUS, the second WUS comprising: an indication of whether to start the on duration timer for a second DRX-on cycle corresponding to the second WUS; and an indication of one or more second WUS monitoring instances of the plurality of WUS monitoring instances; and wherein monitoring for the at least one additional WUS comprises monitoring, after reception of the second WUS, for the at least one additional WUS in in the at least one WUS monitoring instance of the one or more WUS monitoring instances based on an unsuccessful decode of the second WUS, an unsuccessful identification of the one or more second WUS monitoring instances indicated in the second WUS, or a combination thereof.
[0364] Clause 15: The method of any one of Clauses 1-14, wherein: the first WUS comprises a common field for a plurality of devices; the common field comprises the indication of the one or more WUS monitoring instances; and the plurality of devices comprises the apparatus.
[0365] Clause 16: The method of any one of Clauses 1-15, wherein the indication of whether to start the on duration timer indicates to not start the on duration timer.
[0366] Clause 17: The method of any one of Clauses 1-16, wherein the indication of whether to start the on duration timer indicates to start the on duration timer.
[0367] Clause 18: The method of any one of Clauses 1-17, further comprising: receiving, from the network entity, a second WUS via a first beam associated with a first WUS monitoring instance of the one or more WUS monitoring instances, wherein the second WUS comprises an indication to start the on duration timer for a second DRX-on cycle of the plurality of DRX-on cycles; and receiving, from the network entity, in the second DRX-on cycle, a downlink channel via the first beam.
[0368] Clause 19: The method of any one of Clauses 1-18, wherein receiving the configuration of the plurality of sets of WUS monitoring instances comprises receiving the configuration via RRC signaling.
[0369] Clause 20: The method of any one of Clauses 1-19, wherein receiving the configuration of the plurality of sets of WUS monitoring instances comprises receiving the configuration via a MAC-CE, a DCI message, or a combination thereof.
[0370] Clause 21: The method of any one of Clauses 1-20, wherein the plurality of WUS monitoring instances comprise a plurality of search space sets, a plurality of PDCCH monitoring occasions, or a combination thereof.
[0371] Clause 22: The method of any one of Clauses 1-21, further comprising: receiving, from the network entity, a second WUS based on monitoring the at least one WUS monitoring instance, the second WUS comprising: an indication of whether to start the on duration timer for a second DRX-on cycle corresponding to the second WUS; and an indication to monitor the plurality of WUS monitoring instances for a subsequent set of WUS monitoring instances associated with a DRX-on cycle after the second DRX-on cycle.
[0372] Clause 23: The method of any one of Clauses 1-22, wherein the indication of the one or more WUS monitoring instances comprises an indication of one or more search space sets associated with the one or more WUS monitoring instances, an indication of a PDCCH monitoring occasion associated with a search space set, an indication of one or more TCI-states associated with a search space set, or a combination thereof.
[0373] Clause 24: A method for wireless communications by an apparatus comprising: sending, to a device, a configuration of a plurality of sets of WUS monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances; sending, to the device, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles, wherein the first WUS comprises: an indication of whether to start an on duration timer for the first DRX-on cycle; and an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances; and sending, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0374] Clause 25: The method of Clause 24, further comprising: receiving, from the device, one or more measurement reports of signals sent by the apparatus; and determining the one or more WUS monitoring instances based on the one or more measurement reports.
[0375] Clause 26: The method of Clause 25, wherein the one or more measurement reports of signals sent by the apparatus comprise characteristics of SSBs sent by the apparatus, characteristics of CSI-RSs sent by the apparatus, layer 1 measurement reports of reference signals sent by the apparatus, or a combination thereof.
[0376] Clause 27: The method of any one of Clauses 24-26, further comprising: receiving, from the device, a report of prediction results associated with the one or more WUS monitoring instances; and determining the one or more WUS monitoring instances based on the report of prediction results.
[0377] Clause 28: The method of any one of Clauses 24-27, wherein the indication of the one or more WUS monitoring instances comprises one or more respective search space set identifiers associated with the one or more WUS monitoring instances or one or more TCI state identifiers associated with the one or more WUS monitoring instances.
[0378] Clause 29: The method of any one of Clauses 24-28, wherein the indication of the one or more WUS monitoring instances comprises one or more identifiers associated with the one or more WUS monitoring instances, a bitmap indicating the one or more WUS monitoring instances, a combinatorial index indicating the one or more WUS monitoring instances, or a combination thereof.
[0379] Clause 30: The method of Clause 29, further comprising sending an indication of a number of identifiers for the device to expect for the one or more identifiers.
[0380] Clause 31: The method of any one of Clauses 24-30, wherein the at least one set of WUS monitoring instances is a single set of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle is a single DRX-on cycle.
[0381] Clause 32: The method of Clause 31, wherein each WUS that can be sent in the single set of WUS monitoring instances comprises a same payload size.
[0382] Clause 33: The method of any one of Clauses 24-32, wherein the at least one set of WUS monitoring instances comprises multiple sets of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle comprises multiple DRX-on cycles associated with the multiple sets of WUS monitoring instances.
[0383] Clause 34: The method of Clause 33, further comprising sending a configuration of a number of sets of WUS monitoring instances corresponding to the multiple sets of WUS monitoring instances.
[0384] Clause 35: The method of any one of Clauses 24-34, wherein: the first WUS comprises a common field for a plurality of devices; the common field comprises the indication of the one or more WUS monitoring instances; and the plurality of devices comprises the device.
[0385] Clause 36: The method of any one of Clauses 24-35, wherein the indication of whether to start the on duration timer indicates for the device to not start the on duration timer.
[0386] Clause 37: The method of any one of Clauses 24-36, wherein the indication of whether to start the on duration timer indicates for the device to start the on duration timer.
[0387] Clause 38: The method of any one of Clauses 24-37, wherein sending the at least one additional WUS comprises sending, a second WUS via a first beam associated with a first WUS monitoring instance of the one or more WUS monitoring instances, wherein the second WUS comprises an indication for the device to start the on duration timer for a second DRX-on cycle of the plurality of DRX-on cycles; and wherein the method further comprises sending, to the device, in the second DRX-on cycle, a downlink channel via the first beam.
[0388] Clause 39: The method of any one of Clauses 24-38, wherein sending the configuration of the plurality of sets of WUS monitoring instances comprises sending the configuration via RRC signaling.
[0389] Clause 40: The method of any one of Clauses 24-39, wherein sending the configuration of the plurality of sets of WUS monitoring instances comprises sending the configuration via a MAC-CE, a DCI message, or a combination thereof.
[0390] Clause 41: The method of any one of Clauses 24-40, wherein the plurality of WUS monitoring instances comprise a plurality of search space sets, a plurality of PDCCH monitoring occasions, or a combination thereof.
[0391] Clause 42: The method of any one of Clauses 24-41, wherein the at least one additional WUS comprises a second WUS comprising: an indication of whether to start the on duration timer for a second DRX-on cycle corresponding to the second WUS; and an indication for the device to monitor the plurality of WUS monitoring instances for a subsequent set of WUS monitoring instances associated with a DRX-on cycle after the second DRX-on cycle.
[0392] Clause 43: The method of any one of Clauses 24-42, wherein the indication of the one or more WUS monitoring instances comprises an indication of one or more search space sets associated with the one or more WUS monitoring instances, an indication of a PDCCH monitoring occasion associated with a search space set, an indication of one or more TCI-states associated with a search space set, or a combination thereof.
[0393] Clause 44: A method for wireless communications by an apparatus comprising: receiving, from a network entity, a configuration of a plurality of sets of WUS monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances; receiving, from the network entity, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles, wherein the first WUS comprises: an indication of whether to start an on duration timer for the first DRX-on cycle; and an indication to report one or more predictions corresponding to the plurality of WUS monitoring instances; and sending, to the network entity, an indication of the one or more predictions.
[0394] Clause 45: The method of Clause 44, wherein the one or more predictions comprise one or more predicted channel characteristics of each WUS monitoring instance of the plurality of WUS monitoring instances.
[0395] Clause 46: The method of Clause 45, wherein the one or more predicted channel characteristics of each WUS monitoring instance comprise a L1-RSRP measurement, an L1-SINR measurement, or a combination thereof associated with one or more QCL source reference signals of one or more TCI-states for one or more CORESETs associated with each WUS monitoring instance.
[0396] Clause 47: The method of any one of Clauses 44-46, further comprising: determining one or more WUS monitoring instances of the plurality of WUS monitoring instances based on the one or more predictions; and monitoring for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0397] Clause 48: The method of any one of Clauses 44-47, further comprising: receiving, from the network entity, a second WUS prior to a second DRX-on cycle of the plurality of DRX-on cycles, the second WUS comprising: an indication of whether to start the on duration timer for the second DRX-on cycle; and an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances; and monitoring for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0398] Clause 49: The method of any one of Clauses 44-48, wherein the indication of the one or more predictions comprises an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances.
[0399] Clause 50: The method of Clause 49, further comprising monitoring for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0400] Clause 51: The method of Clause 49, wherein the indication of the one or more WUS monitoring instances comprises an indication of a ranked list of resources in terms of:L1-RSRP measurements, L1-SINR measurements, or a combination thereof associated with one or more QCL source reference signals of one or more TCI-states for one or more CORESETs associated with the one or more WUS monitoring instances.
[0401] Clause 52: The method of any one of Clauses 44-51, wherein the indication to report the one or more predictions comprises a bit indicating whether to send the indication of the one or more predictions in the first DRX-on cycle or in a DRX-on cycle after the first DRX-on cycle.
[0402] Clause 53: The method of any one of Clauses 44-52, wherein sending the indication of the one or more predictions comprises sending the indication of the one or more predictions in a CSI report.
[0403] Clause 54: The method of Clause 53, further comprising receiving a configuration for a periodic CSI report setting associated with reception of WUSs, and wherein the indication of the one or more predictions is sent in the CSI report based on reception of the configuration.
[0404] Clause 55: The method of any one of Clauses 44-54, wherein sending the indication of the one or more predictions comprises sending the indication of the one or more predictions in an uplink MAC-CE.
[0405] Clause 56: The method of any one of Clauses 44-55, wherein: the indication of whether to start the on duration timer for the first DRX-on cycle comprises a positive indication to start the on duration timer; and sending the indication of the one or more predictions comprises sending the indication of the one or more predictions in a scheduled uplink channel.
[0406] Clause 57: The method of any one of Clauses 44-56, wherein: the indication of whether to start the on duration timer for the first DRX-on cycle comprises a negative indication to not start the on duration timer; and the method further comprises receiving, from the network entity, a configured grant for an uplink shared channel, and wherein the indication of the one or more predictions is sent in the uplink shared channel based on reception of the configured grant.
[0407] Clause 58: The method of any one of Clauses 44-57, wherein receiving the configuration of the plurality of sets of WUS monitoring instances comprises receiving the configuration via RRC signaling.
[0408] Clause 59: The method of any one of Clauses 44-58, wherein receiving the configuration of the plurality of sets of WUS monitoring instances comprises receiving the configuration via a MAC-CE, a DCI message, or a combination thereof.
[0409] Clause 60: The method of any one of Clauses 44-59, wherein the plurality of WUS monitoring instances comprise a plurality of search space sets, a plurality of PDCCH monitoring occasions, or a combination thereof.
[0410] Clause 61: A method for wireless communications by an apparatus comprising: sending, to a device, a configuration of a plurality of sets of WUS monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of DRX-on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances; sending, to the device, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles, wherein the first WUS comprises: an indication of whether to start an on duration timer for the first DRX-on cycle; and an indication to report one or more predictions corresponding to the plurality of WUS monitoring instances; and receiving, from the device, an indication of the one or more predictions.
[0411] Clause 62: The method of Clause 61, wherein the one or more predictions comprise one or more predicted channel characteristics of each WUS monitoring instance of the plurality of WUS monitoring instances.
[0412] Clause 63: The method of Clause 62, wherein the one or more predicted channel characteristics of each WUS monitoring instance comprise a L1-RSRP measurement, an L1-SINR measurement, or a combination thereof associated with one or more QCL source reference signals of one or more TCI-states for one or more CORESETs associated with each WUS monitoring instance.
[0413] Clause 64: The method of any one of Clauses 61-63, further comprising: determining one or more WUS monitoring instances of the plurality of WUS monitoring instances based on the one or more predictions; and sending, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0414] Clause 65: The method of any one of Clauses 61-64, further comprising: determining one or more WUS monitoring instances of the plurality of WUS monitoring instances based on the one or more predictions; sending, to the device, a second WUS prior to a second DRX-on cycle of the plurality of DRX-on cycles, the second WUS comprising: an indication of whether to start the on duration timer for the second DRX-on cycle; and an indication of the one or more WUS monitoring instances; and sending, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0415] Clause 66: The method of any one of Clauses 61-65, wherein the indication of the one or more predictions comprises an indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances.
[0416] Clause 67: The method of Clause 66, further comprising sending, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
[0417] Clause 68: The method of Clause 66, wherein the indication of the one or more WUS monitoring instances comprises an indication of a ranked list of resources in terms of L1-RSRP measurements, L1-SINR measurements, or a combination thereof associated with one or more QCL source reference signals of one or more TCI-states for one or more CORESETs associated with the one or more WUS monitoring instances.
[0418] Clause 69: The method of any one of Clauses 61-68, wherein the indication to report the one or more predictions comprises a bit indicating whether the device is to send the indication of the one or more predictions in the first DRX-on cycle or in a DRX-on cycle after the first DRX-on cycle.
[0419] Clause 70: The method of any one of Clauses 61-69, wherein receiving the indication of the one or more predictions comprises receiving the indication of the one or more predictions in a CSI report.
[0420] Clause 71: The method of Clause 70, further comprising sending a configuration for a periodic CSI report setting associated with reception of WUSs at the device, and wherein the indication of the one or more predictions is received in the CSI report based on communication of the configuration.
[0421] Clause 72: The method of any one of Clauses 61-71, wherein receiving the indication of the one or more predictions comprises receiving the indication of the one or more predictions in an uplink MAC-CE.
[0422] Clause 73: The method of any one of Clauses 61-72, wherein: the indication of whether to start the on duration timer for the first DRX-on cycle comprises a positive indication to start the on duration timer; and receiving the indication of the one or more predictions comprises receiving the indication of the one or more predictions in a scheduled uplink channel.
[0423] Clause 74: The method of any one of Clauses 61-73, wherein: the indication of whether to start the on duration timer for the first DRX-on cycle comprises a negative indication to not start the on duration timer; and the method further comprises sending, to the device, a configured grant for an uplink shared channel, and wherein the indication of the one or more predictions is received in the uplink shared channel based on communication of the configured grant.
[0424] Clause 75: The method of any one of Clauses 61-74, wherein sending the configuration of the plurality of sets of WUS monitoring instances comprises sending the configuration via RRC signaling.
[0425] Clause 76: The method of any one of Clauses 61-75, wherein sending the configuration of the plurality of sets of WUS monitoring instances comprises sending the configuration via a MAC-CE, a DCI message, or a combination thereof.
[0426] Clause 77: The method of any one of Clauses 61-76, wherein the plurality of WUS monitoring instances comprise a plurality of search space sets, a plurality of PDCCH monitoring occasions, or a combination thereof.
[0427] Clause 78: One or more apparatuses, comprising: one or more memories comprising executable instructions; and one or more processors configured to execute the executable instructions and cause the one or more apparatuses to perform a method in accordance with any one of Clauses 1-77.
[0428] Clause 79: One or more apparatuses, comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to cause the one or more apparatuses to perform a method in accordance with any one of Clauses 1-77.
[0429] Clause 80: One or more apparatuses, comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to perform a method in accordance with any one of Clauses 1-77.
[0430] Clause 81: One or more apparatuses, comprising means for performing a method in accordance with any one of Clauses 1-77.
[0431] Clause 82: One or more non-transitory computer-readable media comprising executable instructions that, when executed by one or more processors of one or more apparatuses, cause the one or more apparatuses to perform a method in accordance with any one of Clauses 1-77.
[0432] Clause 83: One or more computer program products embodied on one or more computer-readable storage media comprising code for performing a method in accordance with any one of Clauses 1-77.
[0433] Additional Considerations
[0434] The preceding description is provided to enable any person skilled in the art to practice the various aspects described herein. The examples discussed herein are not limiting of the scope, applicability, or aspects set forth in the claims. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. For example, changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For instance, the methods described may be performed in an order different from that described, and various actions may be added, omitted, or combined. Also, features described with respect to some examples may be combined in some other examples. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover such an apparatus or method that is practiced using other structure, functionality, or structure and functionality in addition to, or other than, the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
[0435] The various illustrative logical blocks, modules and circuits described in connection with the present disclosure may be implemented or performed with a general purpose processor, an AI processor, a digital signal processor (DSP) , an ASIC, a field programmable gate array (FPGA) or other programmable logic device (PLD) , 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 commercially available 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, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, a system on a chip (SoC) , or any other such configuration.
[0436] As used herein, a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .
[0437] As used herein, the term “determining” encompasses a wide variety of actions. For example, “determining” may include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, a database or another data structure) , ascertaining and the like. Also, “determining” may include receiving (e.g., receiving information) , accessing (e.g., accessing data in a memory) and the like. Also, “determining” may include resolving, selecting, choosing, establishing and the like.
[0438] As used herein, “coupled to” and “coupled with” generally encompass direct coupling and indirect coupling (e.g., including intermediary coupled aspects) unless stated otherwise. For example, stating that a processor is coupled to a memory allows for a direct coupling or a coupling via an intermediary aspect, such as a bus.
[0439] The methods disclosed herein comprise one or more actions for achieving the methods. The method actions may be interchanged with one another without departing from the scope of the claims. In other words, unless a specific order of actions is specified, the order and / or use of specific actions may be modified without departing from the scope of the claims. Further, the various operations of methods described above may be performed by any suitable means capable of performing the corresponding functions. The means may include various hardware and / or software component (s) and / or module (s) , including, but not limited to a circuit, an application specific integrated circuit (ASIC) , or processor.
[0440] The following claims are not intended to be limited to the aspects shown herein, but are to be accorded the full scope consistent with the language of the claims. Reference to an element in the singular is not intended to mean only one unless specifically so stated, but rather “one or more. ” The subsequent use of a definite article (e.g., “the” or “said” ) with an element (e.g., “the processor” ) is not intended to invoke a singular meaning (e.g., “only one” ) on the element unless otherwise specifically stated. For example, reference to an element (e.g., “aprocessor, ” “acontroller, ” “amemory, ” “atransceiver, ” “an antenna, ” “the processor, ” “the controller, ” “the memory, ” “the transceiver, ” “the antenna, ” etc. ) , unless otherwise specifically stated, should be understood to refer to one or more elements (e.g., “one or more processors, ” “one or more controllers, ” “one or more memories, ” “one more transceivers, ” etc. ) . The terms “set” and “group” are intended to include one or more elements, and may be used interchangeably with “one or more. ” Where reference is made to one or more elements performing functions (e.g., steps of a method) , one element may perform all functions, or more than one element may collectively perform the functions. When more than one element collectively performs the functions, each function need not be performed by each of those elements (e.g., different functions may be performed by different elements) and / or each function need not be performed in whole by only one element (e.g., different elements may perform different sub-functions of a function) . Similarly, where reference is made to one or more elements configured to cause another element (e.g., an apparatus) to perform functions, one element may be configured to cause the other element to perform all functions, or more than one element may collectively be configured to cause the other element to perform the functions. Unless specifically stated otherwise, the term “some” refers to one or more. All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are intended to be encompassed by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether such disclosure is explicitly recited in the claims.
Claims
1.An apparatus configured for wireless communications, comprising: one or more memories comprising processor-executable instructions; and one or more processors configured to execute the processor-executable instructions and cause the apparatus to:receive, from a network entity, a configuration of a plurality of sets of wake-up signal (WUS) monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of discontinuous reception (DRX) -on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances;receive, from the network entity, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles,wherein the first WUS comprises:an indication of whether to start an on duration timer for the first DRX-on cycle; andan indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances; andmonitor for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.2.The apparatus of claim 1, wherein the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to send, to the network entity, one or more measurement reports of signals received from the network entity.3.The apparatus of claim 2, wherein the one or more measurement reports of signals received from the network entity comprise characteristics of synchronization signal blocks (SSBs) received from the network entity, characteristics of channel state information reference signals (CSI-RSs) received from the network entity, layer 1 measurement reports of reference signals received from the network entity, or a combination thereof.4.The apparatus of claim 1, wherein the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to send, to the network entity, a report of prediction results associated with the one or more WUS monitoring instances.5.The apparatus of claim 1, wherein the indication of the one or more WUS monitoring instances comprises one or more respective search space set identifiers associated with the one or more WUS monitoring instances or one or more transmission configuration indicator (TCI) state identifiers associated with the one or more WUS monitoring instances.6.The apparatus of claim 1, wherein the indication of the one or more WUS monitoring instances comprises one or more identifiers associated with the one or more WUS monitoring instances, a bitmap indicating the one or more WUS monitoring instances, a combinatorial index indicating the one or more WUS monitoring instances, or a combination thereof.7.The apparatus of claim 6, wherein the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to receive an indication of a number of identifiers to expect for the one or more identifiers.8.The apparatus of claim 1, wherein the at least one set of WUS monitoring instances is a single set of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle is a single DRX-on cycle.9.The apparatus of claim 8, wherein each WUS that can be received in the single set of WUS monitoring instances comprises a same payload size.10.The apparatus of claim 1, wherein the at least one set of WUS monitoring instances comprises multiple sets of WUS monitoring instances, and the at least one DRX-on cycle after the first DRX-on cycle comprises multiple DRX-on cycles associated with the multiple sets of WUS monitoring instances.11.The apparatus of claim 10, wherein to monitor for the at least one additional WUS, the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to monitor for the at least one additional WUS based on an expectation to monitor the multiple sets of WUS monitoring instances, a configuration of a number of sets of WUS monitoring instances corresponding to the multiple sets of WUS monitoring instances, a number of the one or more WUS monitoring instances being the same for each set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, or a combination thereof.12.The apparatus of claim 1, wherein the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to ignore remaining WUS monitoring instances of the plurality of WUS monitoring instances, aside from the one or more WUS monitoring instances, to monitor for the at least one additional WUS, based on successful reception and decode of the first WUS comprising the indication of the one or more WUS monitoring instances.13.The apparatus of claim 1, wherein to monitor for the at least one additional WUS, the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to monitor for the at least one additional WUS in at least one WUS monitoring instance of the plurality of WUS monitoring instances other than the one or more WUS monitoring instances based on an unsuccessful decode of the first WUS, an unsuccessful identification of the one or more WUS monitoring instances indicated in the first WUS, or a combination thereof.14.The apparatus of claim 1, wherein:the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to receive, from the network entity, a second WUS after reception of the first WUS, the second WUS comprising:an indication of whether to start the on duration timer for a second DRX-on cycle corresponding to the second WUS; andan indication of one or more second WUS monitoring instances of the plurality of WUS monitoring instances; andto monitor for the at least one additional WUS, the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to monitor, after reception of the second WUS, for the at least one additional WUS in in the at least one WUS monitoring instance of the one or more WUS monitoring instances based on an unsuccessful decode of the second WUS, an unsuccessful identification of the one or more second WUS monitoring instances indicated in the second WUS, or a combination thereof.15.The apparatus of claim 1, wherein:the first WUS comprises a common field for a plurality of devices;the common field comprises the indication of the one or more WUS monitoring instances; andthe plurality of devices comprises the apparatus.16.The apparatus of claim 1, wherein the indication of whether to start the on duration timer indicates to not start the on duration timer.17.The apparatus of claim 1, wherein the indication of whether to start the on duration timer indicates to start the on duration timer.18.The apparatus of claim 1, wherein the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to:receive, from the network entity, a second WUS via a first beam associated with a first WUS monitoring instance of the one or more WUS monitoring instances, wherein the second WUS comprises an indication to start the on duration timer for a second DRX-on cycle of the plurality of DRX-on cycles; andreceive, from the network entity, in the second DRX-on cycle, a downlink channel via the first beam.19.The apparatus of claim 1, wherein to receive the configuration of the plurality of sets of WUS monitoring instances, the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to receive the configuration via radio resource control (RRC) signaling.20.The apparatus of claim 1, wherein to receive the configuration of the plurality of sets of WUS monitoring instances, the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to receive the configuration via a medium access control (MAC) control element (CE) , a downlink control information (DCI) message, or a combination thereof.21.The apparatus of claim 1, wherein the plurality of WUS monitoring instances comprise a plurality of search space sets, a plurality of physical downlink control channel (PDCCH) monitoring occasions, or a combination thereof.22.The apparatus of claim 1, wherein the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to:receive, from the network entity, a second WUS based on monitoring the at least one WUS monitoring instance, the second WUS comprising:an indication of whether to start the on duration timer for a second DRX-on cycle corresponding to the second WUS; andan indication to monitor the plurality of WUS monitoring instances for a subsequent set of WUS monitoring instances associated with a DRX-on cycle after the second DRX-on cycle.23.The apparatus of claim 1, wherein the indication of the one or more WUS monitoring instances comprises an indication of one or more search space sets associated with the one or more WUS monitoring instances, an indication of a physical downlink control channel (PDCCH) monitoring occasion associated with a search space set, an indication of one or more TCI-states associated with a search space set, or a combination thereof.24.A method for wireless communications by an apparatus comprising:receiving, from a network entity, a configuration of a plurality of sets of wake-up signal (WUS) monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of discontinuous reception (DRX) -on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances;receiving, from the network entity, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles,wherein the first WUS comprises:an indication of whether to start an on duration timer for the first DRX-on cycle; andan indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances; andmonitoring for at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.25.An apparatus configured for wireless communications, comprising: one or more memories comprising processor-executable instructions; and one or more processors configured to execute the processor-executable instructions and cause the apparatus to:send, to a device, a configuration of a plurality of sets of wake-up signal (WUS) monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of discontinuous reception (DRX) -on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances;send, to the device, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles,wherein the first WUS comprises:an indication of whether to start an on duration timer for the first DRX-on cycle; andan indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances; andsend, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.26.The apparatus of claim 25, wherein the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to:receive, from the device, one or more measurement reports of signals sent by the apparatus; anddetermine the one or more WUS monitoring instances based on the one or more measurement reports.27.The apparatus of claim 26, wherein the one or more measurement reports of signals sent by the apparatus comprise characteristics of synchronization signal blocks (SSBs) sent by the apparatus, characteristics of channel state information reference signals (CSI-RSs) sent by the apparatus, layer 1 measurement reports of reference signals sent by the apparatus, or a combination thereof.28.The apparatus of claim 25, wherein the one or more processors are configured to execute the processor-executable instructions and cause the apparatus to:receive, from the device, a report of prediction results associated with the one or more WUS monitoring instances; anddetermine the one or more WUS monitoring instances based on the report of prediction results.29.The apparatus of claim 25, wherein the indication of the one or more WUS monitoring instances comprises one or more respective search space set identifiers associated with the one or more WUS monitoring instances or one or more transmission configuration indicator (TCI) state identifiers associated with the one or more WUS monitoring instances.30.A method for wireless communications by an apparatus comprising:sending, to a device, a configuration of a plurality of sets of wake-up signal (WUS) monitoring instances, wherein the plurality of sets of WUS monitoring instances are associated with a plurality of discontinuous reception (DRX) -on cycles, wherein each set of WUS monitoring instances, of the plurality of sets of WUS monitoring instances, comprises a plurality of WUS monitoring instances;sending, to the device, a first WUS prior to a first DRX-on cycle of the plurality of DRX-on cycles,wherein the first WUS comprises:an indication of whether to start an on duration timer for the first DRX-on cycle; andan indication of one or more WUS monitoring instances of the plurality of WUS monitoring instances; andsending, to the device, at least one additional WUS in at least one WUS monitoring instance of the one or more WUS monitoring instances of at least one set of WUS monitoring instances of the plurality of sets of WUS monitoring instances, wherein the at least one set of WUS monitoring instances is associated with at least one DRX-on cycle after the first DRX-on cycle.
Citation Information
Patent Citations
User equipment indication of wake-up signal reception on millimeter wave frequency using digital beamforming
CN116076034A
Method and device for monitoring wake-up signal and readable storage medium
CN117121565A
Time-dependent adaptation of a wake-up signal configuration
WO2021041344A1