Configuring wake-up signal

Abstract

This invention discloses an apparatus, method, and system for configuring a wake-up signal. One method (600) includes receiving (602) a discontinuous reception configuration at a user equipment location, including time slot offsets and / or conduction duration periodicity. The method (600) includes receiving (604) a wake-up signal configuration including a wake-up signal offset and / or monitoring timing. The wake-up signal configuration is received using scrambled downlink control information signaling. The method (600) includes receiving (606) information indicating that a probe reference signal is transmitted in a probe reference signal resource using a transmit beam and / or a transmit spatial filter during a discontinuous reception sleep period. The method (600) includes receiving (608) a control signal using a corresponding receive beam and / or receive spatial filter. The method (600) includes configuring (610) a spatial filter relationship between the probe reference signal resource and the wake-up signal reception using downlink control information signaling.

Description

[0001] Cross-reference of related applications

[0002] This application claims priority to U.S. Patent Application No. 63 / 068,926, filed August 21, 2020, entitled “Apparatus, Methods, and Systems for UE Initialized DL Beam Alignment During DRX Sleep”, which is incorporated herein by reference in its entirety. Technical Field

[0003] The topics disclosed in this article generally relate to wireless communication, and more specifically, to configuring wake-up signals. Background Technology

[0004] In some wireless communication networks, the transmit beam may be misaligned. Misalignment can lead to poor communication. Summary of the Invention

[0005] A method for configuring a wake-up signal is disclosed. The apparatus and system also perform the functions of the method. One embodiment of the method includes receiving a discontinuous reception configuration at a user equipment including a time slot offset, a periodicity of on-time duration, or a combination thereof. In some embodiments, the method includes receiving a wake-up signal configuration including a wake-up signal offset, a monitoring timing, or a combination thereof. The wake-up signal configuration is received using scrambled downlink control information signaling. In some embodiments, the method includes receiving information instructing the transmission of a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period. In various embodiments, the method includes receiving control signals using a corresponding receive beam, a receive spatial filter, or a combination thereof. In some embodiments, the method includes configuring a spatial filter relationship between the probe reference signal resource and the wake-up signal reception using downlink control information signals.

[0006] An apparatus for configuring a wake-up signal includes user equipment. In some embodiments, the apparatus includes a receiver that: receives a discontinuous reception configuration including a time slot offset, a periodicity of on-time duration, or a combination thereof; receives a wake-up signal configuration including a wake-up signal offset, a monitoring timing, or a combination thereof, wherein the wake-up signal configuration receives using scrambled downlink control information signaling; receives information instructing the transmission of a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period; and receives a control signal using a corresponding receive beam, a receive spatial filter, or a combination thereof. In various embodiments, the apparatus includes a processor that configures a spatial filter relationship between the probe reference signal resource and the wake-up signal reception using downlink control information signals.

[0007] Another embodiment of the method for configuring a wake-up signal includes transmitting a discontinuous reception configuration from a base station, comprising a time slot offset, a periodicity of on-time duration, or a combination thereof. In some embodiments, the method includes transmitting a wake-up signal configuration comprising a wake-up signal offset, a monitoring timing, or a combination thereof. The wake-up signal configuration uses scrambled downlink control information signaling for transmission. In some embodiments, the method includes transmitting information to user equipment instructing it to transmit a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period. In various embodiments, the method includes transmitting control signals using a corresponding receive beam, a receive spatial filter, or a combination thereof.

[0008] Another device for configuring a wake-up signal includes a base station. In some embodiments, the device includes a transmitter that: transmits a discontinuous reception configuration including a time slot offset, a periodicity of on-time duration, or a combination thereof; transmits a wake-up signal configuration including a wake-up signal offset, a monitoring timing, or a combination thereof, wherein the wake-up signal configuration is transmitted using scrambled downlink control information signaling; transmits information to user equipment instructing it to transmit a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period; and transmits control signals using a corresponding receive beam, a receive spatial filter, or a combination thereof. Attached Figure Description

[0009] A more specific description of the embodiments briefly described above will be presented by referring to specific embodiments illustrated in the accompanying drawings. It should be understood that these figures depict only some embodiments and therefore should not be considered limiting; the embodiments will be described and explained with additional specificity and detail using the drawings, in which:

[0010] Figure 1 This is a schematic block diagram illustrating one embodiment of a wireless communication system for configuring a wake-up signal;

[0011] Figure 2 This is a schematic block diagram illustrating one embodiment of a device that can be used to configure a wake-up signal;

[0012] Figure 3 This is a schematic block diagram illustrating one embodiment of a device that can be used to configure a wake-up signal;

[0013] Figure 4 This is a schematic block diagram illustrating one embodiment of communication used for beam alignment;

[0014] Figure 5 This is a schematic block diagram illustrating another embodiment of communication for beam alignment;

[0015] Figure 6 This is a flowchart illustrating one embodiment of a method for configuring a wake-up signal; and

[0016] Figure 7 This is a flowchart illustrating another embodiment of a method for configuring a wake-up signal. Detailed Implementation

[0017] As those skilled in the art will understand, aspects of the embodiments may be embodied as systems, devices, methods, or program products. Therefore, embodiments may take the form of entirely hardware embodiments, entirely software embodiments (including firmware, resident software, microcode, etc.), or embodiments combining software and hardware aspects, all of which may be generally referred to herein as “circuit,” “module,” or “system.” Furthermore, embodiments may take the form of program products embodied in one or more computer-readable storage devices storing machine-readable code, computer-readable code, and / or program code (hereinafter referred to as “code”). Storage devices may be tangible, non-transitory, and / or non-emitting. Storage devices may not embody signals. In certain embodiments, storage devices use only signals to access code.

[0018] Certain functional units described in this specification may be labeled as modules to more specifically emphasize their implementation independence. For example, modules may be implemented as hardware circuitry (including custom-designed very large-scale integration (“VLSI”) circuitry or gate arrays), off-the-shelf semiconductors (e.g., logic chips, transistors), or other discrete components. Modules may also be implemented in programmable hardware devices, such as field-programmable gate arrays, programmable array logic, programmable logic devices, or the like.

[0019] Modules can also be implemented in code and / or software to be executed by various types of processors. An identified module of code may, for example, contain one or more physical or logical blocks of executable code, which may be organized, for example, as objects, programs, or functions. However, an executable file of an identified module does not need to be physically located together, but may contain discrete instructions stored in different locations, which, when logically connected together, constitute a module and implement the claimed purpose of the module.

[0020] In practice, a code module can be a single instruction or many instructions, and can even be distributed across several different code segments, different programming sections, and several memory devices. Similarly, operational data can be identified and described within the module herein, and can be represented in any suitable form and organized within any suitable type of data structure. Operational data can be collected as a single dataset or can be distributed across different locations, including across different computer-readable storage devices. When a module or part of a module is implemented in software, the software portion is stored on one or more computer-readable storage devices.

[0021] Any combination of one or more computer-readable media may be used. The computer-readable media may be a computer-readable storage medium. The computer-readable storage medium may be a storage device for storing code. The storage device may be, for example (but not limited to), an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor system, device, or apparatus, or any suitable combination of the foregoing.

[0022] Further specific examples of storage devices (a non-exhaustive list) will include the following: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (“RAM”), read-only memory (“ROM”), erasable programmable read-only memory (“EPROM” or flash memory), portable optical disc read-only memory (“CD-ROM”), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing. In the context of this document, computer-readable storage media can be any tangible media that may contain or store programs for use by or in conjunction with an instruction execution system, device, or apparatus.

[0023] The code used to implement the operations of the embodiments may be written in any number of lines and may include one or more programming languages, such as object-oriented programming languages ​​(e.g., Python, Ruby, Java, Smalltalk, C++, or the like), conventional procedural programming languages ​​(e.g., the "C" programming language or the like), and / or machine languages ​​(e.g., assembly language). The code may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the latter case, the remote computer may be connected to the user's computer via any type of network, including local area networks ("LANs") or wide area networks ("WANs"), or may be able to connect to external computers (e.g., via the Internet provided by an Internet service provider).

[0024] References to “an embodiment,” “embodiment,” or similar language throughout this specification mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment. Therefore, unless expressly specified otherwise, the phrases “in an embodiment,” “in an embodiment,” and similar language throughout this specification may (but not necessarily) all refer to the same embodiment, but rather mean “one or more, but not all, embodiments.” Unless expressly specified otherwise, the terms “comprising,” “including,” “having,” and variations thereof mean “comprising (but not limited to).” Unless expressly specified otherwise, the list of items does not imply that any or all items are mutually exclusive. Unless expressly specified otherwise, the terms “a / an” and “described” also mean “one or more.”

[0025] Furthermore, the features, structures, or characteristics described in the embodiments can be combined in any suitable manner. In the following description, numerous specific details are provided to provide a thorough understanding of the embodiments, such as examples of programming, software modules, user selection, network transactions, database queries, database structures, hardware modules, hardware circuits, hardware chips, etc. However, those skilled in the art will recognize that the embodiments can be practiced without one or more of the specific details (or with other methods, components, materials, etc.). In other instances, well-known structures, materials, or operations have not been shown or described in detail to avoid obscuring aspects of the embodiments.

[0026] Aspects of the embodiments are described below with reference to schematic flowcharts and / or schematic block diagrams of methods, apparatus, systems, and program products according to the embodiments. It should be understood that each block of the schematic flowcharts and / or schematic block diagrams, and combinations of blocks in the schematic flowcharts and / or schematic block diagrams, can be implemented by code. The code can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine, such that instructions executable via the processor of the computer or other programmable data processing apparatus create components for implementing the functions / actions specified in the blocks of the schematic flowcharts and / or schematic block diagrams or a plurality of schematic block diagrams.

[0027] The code may also be stored in a storage device, which may instruct a computer, other programmable data processing device or other device to function in a particular manner, such that the instructions stored in the storage device produce an article of writing containing instructions that implement the functions / actions specified in the schematic flowchart and / or schematic block diagram, one or more blocks.

[0028] The code may also be loaded onto a computer, other programmable data processing device or other apparatus to cause a series of operations to be performed on the computer, other programmable device or other apparatus to produce a computer-implemented process, such that the code executing on the computer or other programmable device provides a process for implementing the functions / actions specified in the flowchart and / or schematic block diagrams or several schematic block diagrams.

[0029] The schematic flowcharts and / or block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of the device, system, method, and program products according to various embodiments. In this regard, each block in the schematic flowchart or block diagram may represent a code module, code segment, or code portion containing one or more executable instructions for implementing (a number of) specified logical functions.

[0030] It should also be noted that in some alternative implementations, the functions described in the boxes may not occur in the order shown in the figures. For example, two boxes shown consecutively may actually be executed substantially concurrently, or the boxes may sometimes be executed in reverse order, depending on the functionality involved. Other steps and methods that are functionally, logically, or effectively equivalent to one or more boxes or portions thereof in the illustrated figures are conceivable.

[0031] While various arrow and line types may be used in flowcharts and / or block diagrams, they should not be construed as limiting the scope of the corresponding embodiments. In fact, some arrows or other connectors may be used to indicate only the logical flow of the depicted embodiment. For example, an arrow may indicate a wait or monitoring period of unspecified duration between enumeration steps in a depicted embodiment. It should also be noted that each block in the block diagram and / or flowchart description, and combinations of blocks in the block diagram and / or flowchart, may be implemented by a system based on dedicated hardware or a combination of dedicated hardware and code that performs the specified function or action.

[0032] The description of the components in each figure can be referenced to the components in the previous figures. Similar numbers refer to similar components in all figures, including alternative embodiments of similar components.

[0033] Figure 1 An embodiment of a wireless communication system 100 for configuring a wake-up signal is depicted. In one embodiment, the wireless communication system 100 includes a remote unit 102 and a network unit 104. Although in Figure 1 A specific number of remote units 102 and network units 104 are depicted, but those skilled in the art will recognize that any number of remote units 102 and network units 104 may be included in the wireless communication system 100.

[0034] In one embodiment, remote unit 102 may include a computing device, such as a desktop computer, laptop computer, personal digital assistant (“PDA”), tablet computer, smartphone, smart TV (e.g., a TV connected to the Internet), set-top box, game console, security system (including security cameras), in-vehicle computer, network device (e.g., router, switch, modem), aircraft, drone, or the like. In some embodiments, remote unit 102 includes a wearable device, such as a smartwatch, fitness tracker, optical head-mounted display, or the like. Furthermore, remote unit 102 may be referred to as a subscriber unit, mobile device, mobile station, user, terminal, mobile terminal, fixed terminal, subscriber station, UE, user terminal, device, or by other terms used in the art. Remote unit 102 may communicate directly with one or more of network units 104 via UL communication signals. In some embodiments, remote unit 102 may communicate directly with other remote units 102 via sidelink communication.

[0035] Network unit 104 may be distributed across a geographical area. In some embodiments, network unit 104 may also refer to / or include one or more of the following: access point, access terminal, base station, base station, location server, core network (“CN”), radio network entity, node-B, evolved node-B (“eNB”), 5G node-B (“gNB”), home node-B, relay node, device, core network, air server, radio access node, access point (“AP”), new radio (“NR”), network entity, access and mobility management function (“AMF”), unified data management (“UD”). Network element 104 is typically a portion of a radio access network that includes one or more controllers communicatively coupled to one or more corresponding network elements 104. The radio access network is typically communicatively coupled to one or more core networks, which may be coupled to other networks, such as the Internet and the public switched telephone network, and other networks. These and other elements of the radio access and core networks are not described herein but are generally well known to those skilled in the art.

[0036] In one implementation, the wireless communication system 100 conforms to the NR protocol standardized in the 3rd Generation Partnership Project (“3GPP”), wherein network unit 104 transmits using an OFDM modulation scheme on the downlink (“DL”), and remote unit 102 transmits using a single-carrier frequency division multiple access (“SC-FDMA”) or orthogonal frequency division multiplexing (“OFDM”) scheme on the uplink (“UL”). However, more generally, the wireless communication system 100 may implement some other open or proprietary communication protocol, such as WiMAX, IEEE 802.11 variants, GSM, GPRS, UMTS, LTE variants, or CDMA2000. ZigBee, Sigfoxx, and other protocols. This disclosure is not intended to be limited to any particular wireless communication system architecture or protocol implementation.

[0037] Network unit 104 can serve several remote units 102 within a service area (e.g., a cell or cell sector) via a wireless communication link. Network unit 104 transmits DL communication signals to serve the remote units 102 in the time domain, frequency domain, and / or spatial domain.

[0038] In various embodiments, remote unit 102 may receive a discontinuous reception configuration at the user equipment including time slot offset, conduction duration periodicity, or a combination thereof. In some embodiments, remote unit 102 may receive a wake-up signal configuration including wake-up signal offset, monitoring timing, or a combination thereof. The wake-up signal configuration is received using scrambled downlink control information signaling. In some embodiments, remote unit 102 may receive information instructing the transmission of a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period. In various embodiments, remote unit 102 may use a corresponding receive beam, a receive spatial filter, or a combination thereof to receive control signals. In some embodiments, remote unit 102 may use downlink control information signals to configure the spatial filter relationship between the probe reference signal resource and the wake-up signal reception. Therefore, remote unit 102 can be used to configure the wake-up signal.

[0039] In some embodiments, network unit 104 may transmit a discontinuous reception configuration from a base station, including time slot offset, periodicity of on-time duration, or a combination thereof. In some embodiments, network unit 104 may transmit a wake-up signal configuration, including wake-up signal offset, monitoring timing, or a combination thereof. The wake-up signal configuration is transmitted using scrambled downlink control information signaling. In some embodiments, network unit 104 may transmit information instructing user equipment to transmit a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period. In various embodiments, network unit 104 may transmit control signals using a corresponding receive beam, a receive spatial filter, or a combination thereof. Therefore, network unit 104 can be used to configure the wake-up signal.

[0040] Figure 2One embodiment of a device 200 for configuring a wake-up signal is depicted. Device 200 includes one embodiment of a remote unit 102. Furthermore, the remote unit 102 may include a processor 202, a memory 204, an input device 206, a display 208, a transmitter 210, and a receiver 212. In some embodiments, the input device 206 and the display 208 are combined into a single device, such as a touch screen. In some embodiments, the remote unit 102 may not include any input device 206 and / or display 208. In various embodiments, the remote unit 102 may include one or more of the processor 202, memory 204, transmitter 210, and receiver 212, and may not include an input device 206 and / or display 208.

[0041] In one embodiment, processor 202 may include any known controller capable of executing computer-readable instructions and / or performing logical operations. For example, processor 202 may be a microcontroller, microprocessor, central processing unit (“CPU”), graphics processing unit (“GPU”), auxiliary processing unit, field-programmable gate array (“FPGA”), or similar programmable controller. In some embodiments, processor 202 executes instructions stored in memory 204 to perform the methods and routines described herein. Processor 202 is communicatively coupled to memory 204, input device 206, display 208, transmitter 210, and receiver 212.

[0042] In one embodiment, memory 204 is a computer-readable storage medium. In some embodiments, memory 204 includes volatile computer storage media. For example, memory 204 may include RAM, including dynamic RAM (“DRAM”), synchronous dynamic RAM (“SDRAM”), and / or static RAM (“SRAM”). In some embodiments, memory 204 includes non-volatile computer storage media. For example, memory 204 may include a hard disk drive, flash memory, or any other suitable non-volatile computer storage device. In some embodiments, memory 204 includes both volatile and non-volatile computer storage media. In some embodiments, memory 204 also stores program code and related data, such as an operating system or other controller algorithms operating on remote unit 102.

[0043] In one embodiment, input device 206 may include any known computer input device, including a touch panel, button, keyboard, pen, microphone, or the like. In some embodiments, input device 206 may be integrated with display 208, for example, as a touchscreen or similar touch-sensitive display. In some embodiments, input device 206 includes a touchscreen, allowing text to be entered using a virtual keyboard displayed on the touchscreen and / or by handwriting input on the touchscreen. In some embodiments, input device 206 includes two or more different devices, such as a keyboard and a touch panel.

[0044] In one embodiment, display 208 may include any known electronically controllable display or display device. Display 208 may be designed to output visual signals, audible signals, and / or tactile signals. In some embodiments, display 208 includes an electronic display capable of outputting visual data to a user. For example, display 208 may include (but is not limited to) a liquid crystal display (“LCD”), a light-emitting diode (“LED”) display, an organic light-emitting diode (“OLED”) display, a projector, or a similar display device capable of outputting images, text, or the like to a user. As another non-limiting example, display 208 may include a wearable display, such as a smartwatch, smart glasses, a head-mounted display, or the like. Furthermore, display 208 may be a component of a smartphone, personal digital assistant, television, desktop computer, laptop computer, personal computer, vehicle dashboard, or the like.

[0045] In some embodiments, display 208 includes one or more speakers for generating sound. For example, display 208 may generate an auditory alarm or notification (e.g., a beep or ring). In some embodiments, display 208 includes one or more tactile devices for generating vibration, motion, or other tactile feedback. In some embodiments, display 208 may be wholly or partially integrated with input device 206. For example, input device 206 and display 208 may form a touchscreen or similar touch-sensitive display. In other embodiments, display 208 may be positioned near input device 206.

[0046] In some embodiments, receiver 212: receives a discontinuous reception configuration including time slot offset, periodicity of on-time duration, or a combination thereof; receives a wake-up signal configuration including wake-up signal offset, monitoring timing, or a combination thereof, wherein the wake-up signal configuration is received using scrambled downlink control information signaling; receives information instructing the transmission of a probe reference signal in the probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during the discontinuous reception sleep period; and receives control signals using a corresponding receive beam, a receive spatial filter, or a combination thereof. In various embodiments, processor 202 uses downlink control information signals to configure the spatial filter relationship between the probe reference signal resource and the wake-up signal reception.

[0047] Although only one transmitter 210 and one receiver 212 have been described, the remote unit 102 may have any suitable number of transmitters 210 and receivers 212. The transmitters 210 and receivers 212 may be of any suitable type. In one embodiment, the transmitters 210 and receivers 212 may be part of a transceiver.

[0048] Figure 3 An embodiment of a device 300 for configuring wake-up signals is depicted. Device 300 includes one embodiment of a network unit 104. Furthermore, network unit 104 may include a processor 302, a memory 304, an input device 306, a display 308, a transmitter 310, and a receiver 312. As will be understood, processor 302, memory 304, input device 306, display 308, transmitter 310, and receiver 312 may be substantially similar to processor 202, memory 204, input device 206, display 208, transmitter 210, and receiver 212 of remote unit 102, respectively.

[0049] In some embodiments, transmitter 310: transmits a discontinuous reception configuration including time slot offset, periodicity of on-time duration, or a combination thereof; transmits a wake-up signal configuration including wake-up signal offset, monitoring timing, or a combination thereof, wherein the wake-up signal configuration is transmitted using scrambled downlink control information signaling; transmits information to user equipment instructing it to transmit a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period; and transmits control signals using a corresponding receive beam, a receive spatial filter, or a combination thereof.

[0050] In various embodiments, such as for mmWave frequencies above 6 GHz and above 52.6 GHz, the downlink (“DL”) beam alignment and recovery procedure may be beam recovery based on Channel State Information (“CSI”) Reference Signal (“RS”) (“CSI-RS”), Physical Random Access Channel (“PRACH”), Synchronization Signal Block (“SSB”), and / or Physical Uplink Control Channel (“PUCCH”) Scheduled Resources (“SR”) (“PUCCH-SR”). Such embodiments may rely on beam feedback during the discontinuous reception (“DRX”) on-time duration.

[0051] In some embodiments, beam misalignment may occur during the DRX sleep period of the user equipment (“UE”), causing the UE to be unable to receive a wake-up signal (e.g., a downlink control information (“DCI”) wake-up signal (“WUS”) (“DCI_WUS”)) in the configured downlink (“DL”) beam. In such embodiments, the control resource set (“CORESET”) and search space used to transmit DCI_WUS may be shared with other DCI formats, and the DL beam used for transmitting the physical downlink control channel (“PDCCH”) may be associated with the CORESET. CSI reports can only be transmitted during the next DRX on-duration period, causing the UE to periodically enter the on-duration for beam correction purposes.

[0052] In some embodiments, such as for higher frequencies above 52.6 GHz, beam misalignment can occur frequently due to high path loss, narrow beamwidth, and / or beam blocking. In such embodiments, the UE may miss DCI_WUS, resulting in an unnecessary UE wake-up for beam correction, without any DL data to transmit during the next DRX on-duration period.

[0053] In various embodiments, UE-initiated beam alignment procedures and channel measurements performed during DRX sleep cycles using probe reference signals (“SRS”) can be used to result in a mapping between beam and / or spatial filters of the SRS resources and beam and / or spatial filters used for DCI_WUS reception. In such embodiments, multiple CORESETs, search spaces, and / or monitoring opportunities can be defined for the UE. Furthermore, each of the CORESETs, search spaces, and / or monitoring opportunities can be assigned to a specific beam and / or spatial filter for DCI_WUS reception.

[0054] In a first embodiment, SRS-based beam alignment may be used for DCI_WUS reception. In this first embodiment, the gNB may configure one or more SRS resource sets for DL ​​beam alignment (e.g., and for uplink (“UL”) beam alignment) to the UE during a DRX sleep period (e.g., a DRX shutdown period). In this embodiment, each SRS resource is associated with a UE TX beam and / or spatial filter (e.g., by configuring a transmit configuration indicator (“TCI”) status or spatial relationship information indicating the spatial setup between the target SRS transmission and a reference RS (e.g., an SSB or CSI-RS (e.g., a CSI-RS for beam management)). Therefore, the UE may transmit SRS using one or more UE TX beams and / or spatial filters during a DRX sleep period, and UEs supporting beam correspondence may use the same beams and / or spatial filters used to transmit SRS to receive DCI_WUS.

[0055] In a first embodiment, the gNB may use multiple CORESETs, search spaces, and / or monitoring opportunities to configure a mapping between each of the SRS resources assigned to the TX beam and / or spatial filter and the SRS resources received by the DCI_WUS, where each is assigned, configured with a beam and / or spatial filter, and / or associated with a beam and / or spatial filter for reception. In one instance, the DCI_WUS is transmitted with a narrower beamwidth than the spatial relation reference signal (“RS”) used for the SRS resources (e.g., synchronization signal (“SS”) and / or physical broadcast channel (“PBCH”) (“SS / PBCH”) block). In another instance, the tracking reference signal (“TRS”) may be transmitted before the DCI_WUS and the DCI_WUS uses the same beam as the TRS (e.g., the TCI state of the DCI_WUS includes the TRS as the source RS with QCL_TypeD (and possibly additional QCL_TypeA relation).

[0056] In some embodiments, the gNB may configure one of the following options for DCI_WUS reception for the UE using a specific beam and / or spatial filter (e.g., a TCI state with a QCL_TypeD source reference signal): 1) If each of the CORESETs is assigned, configured with, and / or associated with a specific beam and / or spatial filter for DCI_WUS reception, then multiple CORESETs may be configured for the UE; 2) If each of the search spaces is assigned with, and / or associated with a specific beam and / or spatial filter for DCI_WUS reception, then multiple search spaces may be configured for the UE; and 3) If each of the DCI_WUS monitoring opportunities is assigned with, and / or associated with a specific beam and / or spatial filter for DCI_WUS reception, then multiple monitoring opportunities may be configured for the UE.

[0057] In one embodiment of the first embodiment, the DCI having a Power Saving (“PS”) Radio Network Temporary Identifier (“RNTI”) (“PS-RNTI”) (“DCP”) or a Cyclic Redundancy Check (“CRC”) scrambled by a Power Saving Configuration may include one or more SRS resource sets for use by the UE during DRX sleep periods for beam alignment purposes under a limited SRS resource set configuration. In one instance, the SRS resource set is limited to a single SRS port and may support one SRS symbol, fewer resource blocks (“RB”), 4-comb configuration, or 2-comb configuration.

[0058] In various embodiments, the UE's DCP configuration may include details of one or more SRS resources mapped to the UE's TX beam and / or spatial filters (e.g., TCI status or spatial relationship information), and details of the beam and / or spatial filters (e.g., TCI status) for using one or more CORESETs assigned to the UE, search space, and / or monitoring timing for DCI_WUS reception.

[0059] Figure 4This is a schematic block diagram 400 illustrating an embodiment of communication for beam alignment using a mapping between SRS and DCI_WUS during DRX sleep. It illustrates the transmission and / or reception (e.g., illustrated transmission and reception) of the gNB TX beam and the UE RX beam within a connected DRX (“C-DRX”) cycle. The C-DRX cycle includes the C-DRX on-time and the time between the C-DRX on-time (e.g., DRX sleep). At time 402, N optimal beam pairs are determined. Furthermore, at time 404, beam misalignment exists during the C-DRX off-time (e.g., DRX sleep). The UE transmits SRS in pre-configured resources before the WUS timing (e.g., illustrated at times 410, 414, and 418 along the C-DRX cycle). Specifically, at time 408, the UE transmits an SRS transmission (e.g., TCI state #1), and at time 406, the gNB receives the SRS transmission. The gNB transmits CSI-RS in the beam in which it receives the SRS, and there is a mapping between the SRS and CSI-RS. At time 410, the UE receives CSI-RS using TCI state #1. Furthermore, at time 412, the UE transmits an SRS transmission (e.g., TCI state #2), and at time 414, the UE receives CSI-RS using TCI state #2. Additionally, at time 416, the UE transmits an SRS transmission (e.g., TCI state #3), and at time 418, the UE receives CSI-RS using TCI state #3.

[0060] Figure 5This is a schematic block diagram 500 illustrating another embodiment of communication for beam alignment using a mapping between SRS and DCI_WUS during DRX sleep. It illustrates the transmission and / or reception (e.g., illustrated transmission and reception) of the gNB TX beam and the UERX beam within a connected DRX (“C-DRX”) cycle. The C-DRX cycle includes the C-DRX on-time and the time between the C-DRX on-time (e.g., DRX sleep). At time 402, N optimal beam pairs are determined. Furthermore, at time 404, beam misalignment exists during the C-DRX off-time (e.g., DRX sleep). The UE transmits SRS in pre-configured resources before the WUS timing (e.g., illustrated at times 410, 414, and 418 along the C-DRX cycle). Specifically, at time 408, the UE transmits an SRS transmission (e.g., TCI state #1), and at time 406, the gNB receives the SRS transmission. The gNB transmits CSI-RS in its SRS receiving beam and there is a mapping between SRS and CSI-RS. At time 410, the UE receives CSI-RS using TCI state #1. Furthermore, at time 412, the UE transmits an SRS transmission (e.g., TCI state #2), and at time 414, the UE receives CSI-RS using TCI state #2. Additionally, at time 416, the UE transmits an SRS transmission (e.g., TCI state #3), and at time 418, the UE receives CSI-RS using TCI state #3. The gNB transmits WUS in its SRS receiving beam and there is a mapping between SRS and WUS search spaces (e.g., search spaces TCI states #1502, #2504, and #3506).

[0061] like Figure 5 As shown, the UE can transmit SRS resource #1 using UE Tx beam #1, and if beam correspondence is supported by the transmit and receive points (“TRPs”) and / or gNB, then the UE expects to receive DCI_WUS using the same receive beam (e.g., RX beam #1) in which it transmits SRS using resource #1, after configuring CORESET, search space, and / or monitoring timing. If the UE does not receive any DCI_WUS response, then the UE uses UE TX beam #2 to transmit SRS resource #2, and if beam correspondence is supported, then the UE expects to receive DCI_WUS in the same receive beam (e.g., RX beam #2), and so on.

[0062] In another embodiment of the first embodiment, during a DRX sleep period, the UE may transmit a first SRS beam (e.g., or another DL signal and / or channel, such as CSI_RS for beam management) using the same beam and / or spatial filter previously used to receive the most recent PDCCH during a previous DRX on-duration period. In one instance, the UE selects an SRS resource having the same spatial relation RS as the QCL_TypeD source RS used to receive the most recent PDCCH (e.g., the TCI state of the PDCCH) and / or DL ​​channel, or an RS corresponding to another DL signal. If the corresponding SRS beam is not received by the gNB or if the measurement is below a threshold, the gNB may not transmit a DCI WUS on the corresponding beam. If the UE does not receive the corresponding DCI WUS, the UE may begin beam sweeping with SRS on other beams (e.g., using another beam (e.g., the most recently received beam (e.g., during a previous DRX on-duration period)) where the measurement (e.g., the reference signal received power (“RSRP”)) is above a threshold. In some instances, if a UE has received PDCCH transmissions based on the beam used to receive CSI-RS during the previous DRX on-duration period, then a UE supporting beam correspondence can begin to transmit SRS using the same TX beam and / or spatial filter used to receive CSI-RS.

[0063] In another embodiment of the first embodiment, during a DRX sleep period, the UE may begin monitoring DCI_WUS reception using the same RX beam and / or spatial filter previously used to receive PDCCH transmissions during a previous DRX on-duration period. If the UE does not receive any DCI_WUS during certain configured monitoring times (e.g., configured time slots and / or symbol offsets) (e.g., the RSRP of the beam configured to receive DCI_WUS (e.g., the QCL-Type D source reference signal associated with the TCI state of DCI_WUS) drops below a configured threshold, which may occur due to beam misalignment during the DRX sleep period), then the UE may begin SRS transmission using multiple TX beams and / or spatial filters and expects to receive DCI_WUS in the corresponding RX beam and / or spatial filter. In some embodiments, the DCP configuration includes details regarding the configured time slots and / or symbol offsets in which the UE may wait to receive DCI_WUS before initiating SRS transmission. In one instance, the symbol offset can be defined as the number of DCI_WUS monitoring opportunities that the UE can wait to receive DCI_WUS before starting to transmit SRS.

[0064] In another embodiment of the first embodiment, during the DRX sleep period, the UE may begin SRS transmission using multiple TX beams and / or spatial filters before the DCI_WUS monitoring time, and the gNB may begin transmitting DCI_WUS using one of the beams and / or spatial filters in which it successfully received the SRS transmission.

[0065] In some embodiments of the first embodiment, during the DRX sleep period, a UE supporting multi-beam operation may begin transmitting SRS using multiple beams and / or spatial filters before the DCI_WUS monitoring time, and a gNB may begin transmitting DCI_WUS using one of the beams and / or spatial filters in which it successfully receives the SRS transmission.

[0066] In some embodiments, the SRS resource is semi-persistently configured (e.g., semi-persistent SRS resource configuration) as part of the DCP configuration, and the SRS resource may remain active only during DRX sleep and be implicitly deactivated during the DRX on-duration period.

[0067] In various embodiments, the SRS resource is semi-persistently configured as part of the DCP configuration, and the SRS resource is activated using MAC CE during the previous DRX on-duration period for use during the DRX sleep period.

[0068] In some embodiments, the gNB may update the beam and / or spatial filter used for transmitting the PDCCH in the next DRX on-duration period based on one or more SRS procedures during DRX. In such embodiments, the UE may receive the first PDCCH transmission using the same beam and / or spatial filter used for receiving DCI_WUS when the next DRX on-duration period occurs.

[0069] In the second embodiment, beam alignment based on SRS-CSI-RS may exist during DRX sleep without DCI WUS configured. According to the second embodiment, if the UE is not configured to monitor DCI_WUS during the DRX sleep period, then beam alignment may exist on the PCell.

[0070] In a second embodiment, the gNB may (e.g., for the UE) configure one or more SRS resource sets for DL ​​beam alignment in the PCell during DRX sleep cycles. In this embodiment, each SRS resource is associated with a UE TX beam and / or spatial filter. Therefore, the UE may transmit SRS using one or more UE TX beams and / or spatial filters during DRX sleep cycles, and UEs supporting beam correspondence may use the same RX beam and / or spatial filter to receive CSI_RS. The gNB may configure a one-to-one mapping between each SRS resource assigned to the TX beam and / or spatial filter and each SRS resource received by the CSI_RS assigned to the beam and / or spatial filter.

[0071] In one embodiment of the second embodiment, the SRS and CSI-RS resources may be semi-persistently configured as part of the DCP configuration, and these SRS and CSI-RS resources may remain active only during DRX sleep periods. In another embodiment of the second embodiment, the SRS and CSI-RS resources are semi-persistently configured as part of the DCP configuration, and the SRS and CSI-RS resources may be activated using MAC CE during a previous DRX on-time period.

[0072] It should be noted that one or more embodiments described for configuring an SRS resource set and an SRS transmission including beams and / or spatial filters in the first embodiment are equally applicable to the second embodiment.

[0073] It should also be noted that one or more embodiments described for configuring DCI_WUS including beam and / or spatial filter relationships in the first embodiment can also be applied to receiving CSI-RS (e.g., instead of DCI WUS) in the second embodiment.

[0074] In some embodiments, the terms antenna, panel, and antenna panel are used interchangeably. An antenna panel may be hardware for transmitting and / or receiving radio signals at frequencies below 6 GHz (e.g., frequency range 1 (“FR1”)) or above 6 GHz (e.g., frequency range 2 (“FR2”) or millimeter wave (“mmWave”)). In some embodiments, the antenna panel may comprise an array of antenna elements. Each antenna element may be connected to hardware, such as a phase shifter, that enables a control module to apply spatial parameters for transmitting and / or receiving signals. The resulting radiation pattern may be referred to as a beam, which may or may not be single-peaked and allows the device to amplify signals transmitted or received from a spatial direction.

[0075] In various embodiments, the antenna panel may or may not be virtualized as an antenna port. The antenna panel can be connected to the baseband processing module via a radio frequency (“RF”) chain in each transmit (e.g., exit) and receive (e.g., in) direction. The device’s capability in terms of the number of antenna panels, its duplex capability, its beamforming capability, etc., may or may not be transparent to other devices. In some embodiments, capability information may be transmitted via signaling, or capability information may be provided to the device without signaling. If the information is available to other devices, then the information may be used for signaling or local decision-making.

[0076] In some embodiments, a UE antenna panel may be a physical or logical antenna array comprising a group of antenna elements or antenna ports that share a common or significant portion of a radio frequency (“RF”) chain (e.g., in in-phase and / or quadrature (“I / Q”) modulators, analog-to-digital (“A / D”) converters, local oscillators, phase-shift networks). A UE antenna panel or UE panel may be a logical entity having physical UE antennas mapped to logical entities. The mapping from physical UE antennas to logical entities may depend on the UE implementation. Communication (e.g., receiving or transmitting) on ​​at least a subgroup of antenna elements or antenna ports (e.g., active elements) that are energy-efficient for radiating the antenna panel may require biasing or energizing the RF chain, resulting in current losses or power consumption in the UE associated with the antenna panel (e.g., power consumption of power amplifiers and / or low-noise amplifiers (“LNAs”) associated with the antenna elements or antenna ports). As used herein, the phrase “energy-efficient” is not intended to be limited to transmitting functions but covers receiving functions. Therefore, antenna elements effective for radiated energy can be coupled simultaneously or sequentially to a transmitter to transmit radio frequency energy or to a receiver to receive radio frequency energy, or generally, to a transceiver to perform its intended function. Communication on the effective elements of the antenna panel enables the generation of radiated modes or radiated beams.

[0077] In some embodiments, depending on the UE's own implementation, the "UE panel" may have at least one of the following functionalities: an operational role as an antenna group unit for independently controlling its transmit ("TX") beam, an operational role as an antenna group unit for independently controlling its transmit power, and / or an operational role as an antenna group unit for independently controlling its transmit timing. The "UE panel" may be transparent to the gNB. Under certain conditions, the gNB or network may assume that the mapping between the UE's physical antennas and the logical entity "UE panel" remains unchanged. For example, the condition may include, or be included within, the gNB's assumption that the mapping will not change for a duration until the next update or report from the UE. The UE may report its UE capabilities regarding the "UE panel" to the gNB or network. UE capabilities may include at least the number of "UE panels". In one embodiment, the UE may support UL transmission from one beam within the panel. With multiple panels, more than one beam (e.g., one beam per panel) may be available for UL transmission. In another embodiment, more than one beam per panel may be supported and / or used for UL transmission.

[0078] In some embodiments, an antenna port may be defined such that a channel on which a symbol on the antenna port is transmitted can be inferred from a channel on which another symbol on the same antenna port is transmitted.

[0079] In some embodiments, if the large-scale properties of a channel transmitting symbols on one antenna port can be inferred from the channel transmitting symbols on another antenna port, then the two antenna ports are referred to as quasi-co-located (QCL). Large-scale properties may include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and / or spatial reception (“RX”) parameters. The two antenna ports may be quasi-co-located with respect to subsets of the large-scale properties, and the distinct subsets of the large-scale properties may be indicated by the QCL type. For example, the qcl-Type may take one of the following values: 1) 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread}; 2) 'QCL-TypeB': {Doppler shift, Doppler spread}; 3) 'QCL-TypeC': {Doppler shift, average delay}; and 4) 'QCL-TypeD': {spatial Rx parameter}.

[0080] In various embodiments, the spatial RX parameters may include one or more of the following: angle of arrival (“AoA”), principal AoA, average AoA, angle spread, power angular spectrum of AoA (“PAS”), average transmit angle (“AoD”), PAS of AoD, transmit and / or receive channel correlation, transmit and / or receive beamforming and / or spatial channel correlation, etc.

[0081] In some embodiments, QCL-Type A, QCL-Type B, and QCL-Type C can be applied to all carrier frequencies, but QCL-Type D can only be applied at higher carrier frequencies (e.g., mmWave, FR2, and higher), where the UE may not be able to perform omnidirectional transmission (e.g., the UE will need to form a beam for directional transmission). For QCL-Type D between two reference signals A and B, reference signal A is considered spatially co-located with reference signal B, and the UE may assume that reference signals A and B can be received using the same spatial filter (e.g., with the same RX beamforming weights).

[0082] In some embodiments, an "antenna port" may be a logical port that corresponds to a beam (e.g., generated by beamforming) or a physical antenna on the device. In some embodiments, a physical antenna may be directly mapped to a single antenna port, where the antenna port corresponds to an actual physical antenna. In various embodiments, a set of physical antennas, a subset of physical antennas, an antenna set, an antenna array, or an antenna subarray may be mapped to one or more antenna ports after a composite weight and / or cyclic delay is applied to the signal on each physical antenna. A physical antenna set may have antennas from a single module or panel or from multiple modules or panels. Weights may be fixed, as in an antenna virtualization scheme such as cyclic delay diversity ("CDD"). The procedure for deriving antenna ports from physical antennas may be device-specific and transparent to other devices.

[0083] In various embodiments, a transmit configuration identifier (“TCI”) state associated with a target transmit can indicate a quasi-correspondence relationship between a target transmit (e.g., the target RS of a demodulation reference signal (“DM-RS”) port of the target transmit during the transmit timing) and a source reference signal (e.g., a synchronization signal block (“SSB”), channel state information reference signal (“CSI-RS”), and / or probe reference signal (“SRS”)) with respect to a quasi-correspondence type parameter indicated in the corresponding TCI state. The apparatus can receive configurations of multiple transmit configuration identifier states of the serving cell for transmit on the serving cell.

[0084] In some embodiments, spatial relationship information associated with a target transmission may indicate the spatial configuration between the target transmission and a reference RS (e.g., SSB, CSI-RS, and / or SRS). For example, a UE may transmit a target transmission having the same spatial domain filter for receiving a reference RS (e.g., DL RS, such as SSB and / or CSI-RS). In another instance, a UE may transmit a target transmission having the same spatial domain transmission filter for transmitting an RS (e.g., UL RS, such as SRS). The UE may receive multiple spatial relationship information configurations of the serving cell for transmission on the serving cell.

[0085] Figure 6 This is a flowchart illustrating one embodiment of a method 600 for configuring a wake-up signal. In some embodiments, method 600 is executed by a device such as remote unit 102. In some embodiments, method 600 may be executed by a processor that executes program code, such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, or the like.

[0086] In various embodiments, method 600 includes receiving 602 a discontinuous reception configuration including a time slot offset, a periodicity of on-time duration, or a combination thereof. In some embodiments, method 600 includes receiving 604 a wake-up signal configuration including a wake-up signal offset, a monitoring timing, or a combination thereof. The wake-up signal configuration is received using scrambled downlink control information signaling. In some embodiments, method 600 includes receiving 606 information indicating that a probe reference signal is transmitted in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period. In various embodiments, method 600 includes receiving 608 a control signal using a corresponding receive beam, a receive spatial filter, or a combination thereof. In some embodiments, method 600 includes configuring 610 a spatial filter relationship between the probe reference signal resource and the wake-up signal reception using downlink control information signaling.

[0087] In some embodiments, the control signal is received using multiple control resource sets, and each of the multiple control resource sets is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal. In some embodiments, the control signal is received using multiple search spaces, and each of the multiple search spaces is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal. In various embodiments, the control signal is received using multiple monitoring opportunities, and each of the multiple monitoring opportunities is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal.

[0088] In one embodiment, method 600 further includes implicitly activating a semi-persistent probe reference signal (SMR) resource during a discontinuous receive sleep period and deactivating the SMR resource during a discontinuous receive on period. In some embodiments, method 600 further includes activating the SMR resource during a discontinuous receive sleep period using a media access control element from a previous discontinuous receive on duration period. In some embodiments, method 600 further includes initiating a probe reference signal beam sweep based on a beam, spatial filter, or a combination thereof previously used to receive physical downlink control channel transmissions from a previous discontinuous receive on period.

[0089] In various embodiments, measurements corresponding to beams, spatial filters, or combinations thereof exceed predetermined thresholds. In one embodiment, method 600 further includes implicitly triggering the transmission of a probe reference signal for beam alignment in response to the inability to use a configured beam decoding control signal during at least one monitoring event.

[0090] In some embodiments, method 600 further includes receiving a first physical downlink control channel using a beam, spatial filter, or a combination thereof for receiving control signals in the next occurrence of a discontinuous reception conduction period. In some embodiments, the control signals include a downlink control information wake-up signal.

[0091] Figure 7 This is a flowchart illustrating one embodiment of a method 700 for configuring a wake-up signal. In some embodiments, method 700 is executed by a device such as network unit 104. In some embodiments, method 700 may be executed by a processor that executes program code, such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, or the like.

[0092] In various embodiments, method 700 includes a transmit 702 comprising a discontinuous reception configuration including a time slot offset, a periodicity of on-time duration, or a combination thereof. In some embodiments, method 700 includes a transmit 704 comprising a wake-up signal configuration including a wake-up signal offset, a monitoring timing, or a combination thereof. The wake-up signal configuration uses scrambled downlink control information signaling for transmission. In some embodiments, method 700 includes a transmit 706 instructing user equipment to transmit a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period. In various embodiments, method 708 includes a transmit 708 control signal using a corresponding receive beam, a receive spatial filter, or a combination thereof.

[0093] In some embodiments, the control signal is transmitted using multiple control resource sets, and each of the multiple control resource sets is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal. In some embodiments, the control signal is transmitted using multiple search spaces, and each of the multiple search spaces is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal.

[0094] In various embodiments, the control signal is transmitted using multiple monitoring opportunities, each of which is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal. In one embodiment, method 700 further includes transmitting a first physical downlink control channel using a beam, spatial filter, or combination thereof for receiving the control signal in the next occurrence of a discontinuous reception conduction period. In some embodiments, the control signal includes a downlink control information wake-up signal.

[0095] In one embodiment, a method of a user equipment includes: receiving a discontinuous reception configuration including time slot offset, periodicity of on-time duration, or a combination thereof; receiving a wake-up signal configuration including wake-up signal offset, monitoring timing, or a combination thereof, wherein the wake-up signal configuration is received using scrambled downlink control information signaling; receiving information indicating that during a discontinuous reception sleep period, a transmit beam, a transmit spatial filter, or a combination thereof is used to transmit a probe reference signal in a probe reference signal resource; receiving a control signal using a corresponding receive beam, a receive spatial filter, or a combination thereof; and configuring a spatial filter relationship between the probe reference signal resource and the wake-up signal reception using the downlink control information signal.

[0096] In some embodiments, the control signal is received using multiple control resource sets, and each of the multiple control resource sets is assigned to a beam, spatial filter, or combination thereof corresponding to the probe reference signal.

[0097] In some embodiments, the control signal is received using a plurality of search spaces, and each of the plurality of search spaces is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal.

[0098] In various embodiments, the control signal is received using multiple monitoring opportunities, and each of the multiple monitoring opportunities is assigned to a beam, spatial filter, or combination thereof corresponding to the probe reference signal.

[0099] In one embodiment, the method further includes implicitly activating a semi-persistent probe reference signal resource during a discontinuous receive sleep period and deactivating the semi-persistent probe reference signal resource during a discontinuous receive on period.

[0100] In some embodiments, the method further includes activating a semi-persistent probe reference signal resource using a media access control element from a previous discontinuous receive on-duration period during a discontinuous receive sleep cycle.

[0101] In some embodiments, the method further includes initiating a probe reference signal beam sweep based on a beam, spatial filter, or a combination thereof previously used to receive physical downlink control channel transmissions during previous discontinuous reception conduction periods.

[0102] In various embodiments, the measurement corresponding to the beam, spatial filter, or combination thereof is higher than a predetermined threshold.

[0103] In one embodiment, the method further includes implicitly triggering the transmission of a probe reference signal for beam alignment in response to the inability to use a configured beam decoding control signal at at least one monitoring moment.

[0104] In some embodiments, the method further includes receiving a first physical downlink control channel using a beam, spatial filter, or a combination thereof for receiving control signals in the next occurrence of a discontinuous reception conduction period.

[0105] In some embodiments, the control signal includes a downlink control information wake-up signal.

[0106] In one embodiment, an apparatus includes user equipment. The apparatus further includes: a receiver that: receives a discontinuous reception configuration including time slot offset, periodicity of on-time duration, or a combination thereof; receives a wake-up signal configuration including wake-up signal offset, monitoring timing, or a combination thereof, wherein the wake-up signal configuration receives using scrambled downlink control information signaling; receives information instructing the transmission of a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period; and receives control signals using a corresponding receive beam, a receive spatial filter, or a combination thereof; and a processor that configures a spatial filter relationship between the probe reference signal resource and the wake-up signal reception using the downlink control information signals.

[0107] In some embodiments, the control signal is received using multiple control resource sets, and each of the multiple control resource sets is assigned to a beam, spatial filter, or combination thereof corresponding to the probe reference signal.

[0108] In some embodiments, the control signal is received using a plurality of search spaces, and each of the plurality of search spaces is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal.

[0109] In various embodiments, the control signal is received using multiple monitoring opportunities, and each of the multiple monitoring opportunities is assigned to a beam, spatial filter, or combination thereof corresponding to the probe reference signal.

[0110] In one embodiment, the processor implicitly activates the semi-persistent probe reference signal resource during discontinuous receive sleep cycles and deactivates the semi-persistent probe reference signal resource during discontinuous receive on cycles.

[0111] In some embodiments, the processor activates a semi-persistent probe reference signal resource using a media access control element from a previous discontinuous receive on-duration period during a discontinuous receive sleep cycle.

[0112] In some embodiments, the processor initiates a probe reference signal beam sweep based on a beam, spatial filter, or a combination thereof previously used to receive the physical downlink control channel transmissions during previous discontinuous reception conduction cycles.

[0113] In various embodiments, the measurement corresponding to the beam, spatial filter, or combination thereof is higher than a predetermined threshold.

[0114] In one embodiment, the processor implicitly triggers the transmission of a probe reference signal for beam alignment in response to the inability to use the configured beam decoding control signal during at least one monitoring event.

[0115] In some embodiments, the receiver uses a beam, spatial filter, or a combination thereof for receiving control signals to receive a first physical downlink control channel during the next occurrence of a discontinuous reception conduction cycle.

[0116] In some embodiments, the control signal includes a downlink control information wake-up signal.

[0117] In one embodiment, a method for a base station includes: transmitting a discontinuous reception configuration including time slot offset, periodicity of on-duration, or a combination thereof; transmitting a wake-up signal configuration including wake-up signal offset, monitoring timing, or a combination thereof, wherein the wake-up signal configuration is transmitted using scrambled downlink control information signaling; transmitting information to a user equipment instructing it to transmit a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period; and transmitting a control signal using a corresponding receive beam, a receive spatial filter, or a combination thereof.

[0118] In some embodiments, the control signal is transmitted using multiple control resource sets, and each of the multiple control resource sets is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal.

[0119] In some embodiments, the control signal is transmitted using a plurality of search spaces, and each of the plurality of search spaces is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal.

[0120] In various embodiments, the control signal is transmitted using multiple monitoring opportunities, and each of the multiple monitoring opportunities is assigned to a beam, spatial filter, or combination thereof corresponding to the probe reference signal.

[0121] In one embodiment, the method further includes transmitting a first physical downlink control channel using a beam, spatial filter, or a combination thereof for receiving control signals during the next occurrence of a discontinuous reception conduction period.

[0122] In some embodiments, the control signals include downlink control information wake-up signals.

[0123] In one embodiment, an apparatus includes a base station. The apparatus further includes: a transmitter that: transmits a discontinuous reception configuration including time slot offset, periodicity of on-time duration, or a combination thereof; transmits a wake-up signal configuration including wake-up signal offset, monitoring timing, or a combination thereof, wherein the wake-up signal configuration is transmitted using scrambled downlink control information signaling; transmits information to user equipment instructing it to transmit a probe reference signal in a probe reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period; and transmits control signals using a corresponding receive beam, a receive spatial filter, or a combination thereof.

[0124] In some embodiments, the control signal is transmitted using multiple control resource sets, and each of the multiple control resource sets is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal.

[0125] In some embodiments, the control signal is transmitted using a plurality of search spaces, and each of the plurality of search spaces is assigned to a beam, spatial filter, or combination thereof corresponding to a probe reference signal.

[0126] In various embodiments, the control signal is transmitted using multiple monitoring opportunities, and each of the multiple monitoring opportunities is assigned to a beam, spatial filter, or combination thereof corresponding to the probe reference signal.

[0127] In one embodiment, the transmitter uses a beam, a spatial filter, or a combination thereof for receiving control signals to transmit a first physical downlink control channel during the next occurrence of a discontinuous receive conduction cycle.

[0128] In some embodiments, the control signals include downlink control information wake-up signals.

[0129] The embodiments may be practiced in other specific forms. The described embodiments should be considered in all respects as illustrative rather than restrictive. The scope of the invention is therefore indicated by the appended claims rather than by the foregoing description. All variations derived from the equivalence of the claims are included within its scope.

Claims

1. A method for equipping a user, the method comprising: The reception configuration includes time slot offset, periodicity of on-duration, or a combination thereof; Receive a wake-up signal configuration including wake-up signal offset, monitoring timing, or a combination thereof, wherein the wake-up signal configuration is received using scrambled downlink control information signaling; The information received indicates that during a discontinuous reception sleep period, a transmit beam, a transmit spatial filter, or a combination thereof, a probe reference signal is transmitted in a probe reference signal resource; Use the corresponding receiving beam, receiving spatial filter, or a combination thereof to receive control signals; and The spatial filter relationship between the probe reference signal resource and the wake-up signal reception is configured using downlink control information signals.

2. The method of claim 1, wherein the control signal is received using a plurality of control resource sets, and each of the plurality of control resource sets is assigned to a beam, spatial filter, or combination thereof corresponding to the detection reference signal.

3. The method of claim 1, wherein the control signal is received using a plurality of search spaces, and each of the plurality of search spaces is assigned to a beam, spatial filter or combination thereof corresponding to the probe reference signal.

4. The method of claim 1, wherein the control signal is received using a plurality of monitoring times, and each of the plurality of monitoring times is assigned to a beam, spatial filter or combination thereof corresponding to the detection reference signal.

5. The method of claim 1, further comprising implicitly activating a semi-persistent probe reference signal resource during the discontinuous reception sleep period and deactivating the semi-persistent probe reference signal resource during the discontinuous reception on period.

6. The method of claim 1, further comprising activating a semi-persistent probe reference signal resource using a media access control control element from a previous discontinuous receive on-duration period during the discontinuous receive sleep cycle.

7. A device for wireless communication, the device comprising: processor; as well as A memory coupled to the processor, the memory including instructions executable by the processor to cause the device to: The reception configuration includes time slot offset, periodicity of on-duration, or a combination thereof; Receive a wake-up signal configuration including wake-up signal offset, monitoring timing, or a combination thereof, wherein the wake-up signal configuration is received using scrambled downlink control information signaling; The information received indicates that during a discontinuous reception sleep period, a transmit beam, a transmit spatial filter, or a combination thereof, a probe reference signal is transmitted in a probe reference signal resource; Use the corresponding receiving beam, receiving spatial filter, or a combination thereof to receive control signals; and The spatial filter relationship between the probe reference signal resource and the wake-up signal reception is configured using downlink control information signals.

8. The apparatus of claim 7, wherein the control signal is received using a plurality of control resource sets, and each of the plurality of control resource sets is assigned to a beam, spatial filter or combination thereof corresponding to the detection reference signal.

9. The apparatus of claim 7, wherein the control signal is received using a plurality of search spaces, and each of the plurality of search spaces is assigned to a beam, spatial filter or combination thereof corresponding to the detection reference signal.

10. The device of claim 7, wherein the control signal is received using a plurality of monitoring times, and each of the plurality of monitoring times is assigned to a beam, spatial filter or combination thereof corresponding to the detection reference signal.

11. The device of claim 7, wherein the instructions are further executable by the processor to cause the device to implicitly activate the semi-persistent probe reference signal resource during the discontinuous receive sleep cycle and deactivate the semi-persistent probe reference signal resource during the discontinuous receive on cycle.

12. The device of claim 7, wherein the instructions are further executable by the processor to cause the device to activate a semi-persistent probe reference signal resource during the discontinuous receive sleep cycle using a media access control control element from a previous discontinuous receive on duration cycle.

13. The device of claim 7, wherein the instructions are further executable by the processor to cause the device to initiate a probe reference signal beam sweep based on a beam, spatial filter, or combination thereof previously used to receive transmissions from the physical downlink control channel during a previous discontinuous reception conduction period.

14. The device of claim 13, wherein the measurement corresponding to the beam, the spatial filter, or the combination thereof is higher than a predetermined threshold.

15. The device of claim 7, wherein the instructions are further executable by the processor such that the device implicitly triggers the transmission of a probe reference signal for beam alignment in response to the inability to use the configured beam decoding control signal at at least one monitoring opportunity.

16. The device of claim 7, wherein the instructions are further executable by the processor to cause the device to receive a first physical downlink control channel in the next occurrence of a discontinuous reception conduction cycle using a beam, spatial filter, or a combination thereof for receiving the control signal.

17. The device of claim 7, wherein the control signal includes a downlink control information wake-up signal.

18. An apparatus for wireless communication, the apparatus comprising: processor; as well as A memory coupled to the processor, the memory including instructions executable by the processor to cause the device to: Transmission includes discontinuous reception configurations such as time slot offset, conduction duration periodicity, or combinations thereof; The transmission includes a wake-up signal configuration of wake-up signal offset, monitoring timing, or a combination thereof, wherein the wake-up signal configuration is transmitted using scrambled downlink control information signaling; Transmit information instructing user equipment to transmit a sounding reference signal in a sounding reference signal resource using a transmit beam, a transmit spatial filter, or a combination thereof during a discontinuous reception sleep period; and Use the corresponding receive beam, receive spatial filter, or a combination thereof to transmit control signals.

19. The apparatus of claim 18, wherein the control signal is transmitted using a plurality of control resource sets, and each of the plurality of control resource sets is assigned to a beam, spatial filter, or combination thereof corresponding to the detection reference signal.

20. The apparatus of claim 18, wherein the control signal is transmitted using a plurality of search spaces, and each of the plurality of search spaces is assigned to a beam, spatial filter, or combination thereof corresponding to the detection reference signal.

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