Low-power wake-up signal monitoring
By exchanging capability information on LP-WUS and main radio modes, the system optimizes communication efficiency, reducing network resource waste and UE power consumption through informed scheduling.
Patent Information
- Application Number
- PCT/CN2024/077123
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-09
- Publication Date
- 2025-08-14
AI Technical Summary
Existing wireless communication systems face increased network resource consumption and UE power consumption due to the lack of configuration for low-power wake-up signal (LP-WUS) modes, as the network and UE are not informed about the current operating mode of the LP-WUS and main radio, leading to inefficient communication and power management.
The UE and network node exchange capability information indicating the supported modes of the LP-WUS and main radio, allowing for adjusted scheduling and operation based on these modes, including half-duplex FDD and TDD carrier aggregation configurations.
This approach reduces network resource consumption and UE power consumption by optimizing communication based on the reported modes, minimizing unnecessary transmissions and receptions during transition periods.
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Figure CN2024077123_14082025_PF_FP_ABST
Abstract
Description
LOW-POWER WAKE-UP SIGNAL MONITORING
[0001] FIELD OF THE DISCLOSURE
[0002] Aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods associated with low-power wake-up signal monitoring.BACKGROUND
[0003] Wireless communication systems are widely deployed to provide various services that may include carrying voice, text, messaging, video, data, and / or other traffic. The services may include unicast, multicast, and / or broadcast services, among other examples. Typical wireless communication systems may employ multiple-access radio access technologies (RATs) capable of supporting communication with multiple users by sharing available system resources (for example, time domain resources, frequency domain resources, spatial domain resources, and / or device transmit power, among other examples) . Examples of such multiple-access RATs include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.
[0004] The above multiple-access RATs have been adopted in various telecommunication standards to provide common protocols that enable different wireless communication devices to communicate on a municipal, national, regional, or global level. An example telecommunication standard is New Radio (NR) . NR, which may also be referred to as 5G, is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . NR (and other mobile broadband evolutions beyond NR) may be designed to better support Internet of things (IoT) and reduced capability device deployments, industrial connectivity, millimeter wave (mmWave) expansion, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployment, sidelink and other device-to-device direct communication technologies (for example, cellular vehicle-to-everything (CV2X) communication) , massive multiple-input multiple-output (MIMO) , disaggregated network architectures and network topology expansions, multiple-subscriber implementations, high-precision positioning, and / or radio frequency (RF) sensing, among other examples. As the demand for mobile broadband access continues to increase, further improvements in NR may be implemented, and other radio access technologies such as 6G may be introduced, to further advance mobile broadband evolution.
[0005] Low-power wake-up signaling may be used in wireless communication systems for reducing energy consumption. A low-power (LP) wake-up signal (WUS) (LP-WUS) may be received by an LP wake-up receiver (LP-WUR) of the UE. LP-WUR hardware may generally be separate from hardware of a main radio of the UE. However, the LP-WUR and the main radio may share one or more hardware components, for example, in order to reduce device complexity and / or to further reduce energy consumption by the UE. The LP-WUR and the main radio may operate in one or more modes configured to reduce a likelihood of the LP-WUR interfering with an operation of the main radio. However, the UE may not be configured to transmit information indicating a current operating mode of the UE. Additionally, a network node or other device communicating with the UE may not be configured to receive information indicating the current operating mode of the UE. This may result in increased network resource consumption, for example, since the network node may need to retransmit a communication that is not received by the UE. Additionally or alternatively, this may result in increased UE power consumption, for example, due to the UE receiving communication signals from the network node while the UE is in a low power state.SUMMARY
[0006] In some aspects, a method of wireless communication performed at a user equipment (UE) includes transmitting capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and receiving scheduling information that is based at least in part on the capability information.
[0007] In some aspects, a method of wireless communication performed at a network node includes receiving capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and transmitting scheduling information that is based at least in part on the capability information.
[0008] In some aspects, an apparatus for wireless communication at a UE includes one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories, at least one processor of the one or more processors configured to cause the UE to: transmit capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and receive scheduling information that is based at least in part on the capability information.
[0009] In some aspects, an apparatus for wireless communication at a network node includes one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories, at least one processor of the one or more processors configured to cause the network node to: receive capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and transmit scheduling information that is based at least in part on the capability information.
[0010] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: transmit capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and receive scheduling information that is based at least in part on the capability information.
[0011] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a network node, cause the network node to: receive capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and transmit scheduling information that is based at least in part on the capability information.
[0012] In some aspects, an apparatus for wireless communication includes means for transmitting capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the apparatus, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and means for receiving scheduling information that is based at least in part on the capability information.
[0013] In some aspects, an apparatus for wireless communication includes means for receiving capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and means for transmitting scheduling information that is based at least in part on the capability information.
[0014] Aspects of the present disclosure may generally be implemented by or as a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, network node, network entity, wireless communication device, and / or processing system as substantially described with reference to, and as illustrated by, the specification and accompanying drawings.
[0015] The foregoing paragraphs of this section have broadly summarized some aspects of the present disclosure. These and additional aspects and associated advantages will be described hereinafter. The disclosed aspects may be used as a basis for modifying or designing other aspects for carrying out the same or similar purposes of the present disclosure. Such equivalent aspects do not depart from the scope of the appended claims. Characteristics of the aspects disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in connection with the accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The appended drawings illustrate some aspects of the present disclosure, but are not limiting of the scope of the present disclosure because the description may enable other aspects. Each of the drawings is provided for purposes of illustration and description, and not as a definition of the limits of the claims. The same or similar reference numbers in different drawings may identify the same or similar elements.
[0017] Figure 1 is a diagram illustrating an example of a wireless communication network.
[0018] Figure 2 is a diagram illustrating an example network node in communication with an example user equipment (UE) in a wireless network.
[0019] Figure 3 is a diagram illustrating an example of low-power wake-up signal monitoring.
[0020] Figure 4 is a diagram illustrating an example of overlapping random access channel and higher-layer configured receptions.
[0021] Figure 5 is a diagram illustrating examples of reference cells for half-duplex carrier aggregation.
[0022] Figure 6 is a diagram illustrating examples of main radio and wake-up receiver transition times.
[0023] Figure 7 is a flowchart illustrating an example process performed, for example, at a UE or an apparatus of a UE that supports wireless communications.
[0024] Figure 8 is a flowchart illustrating an example process performed, for example, at a network node or an apparatus of a network node that supports wireless communications.
[0025] Figure 9 is a diagram of an example apparatus for wireless communication that supports low-power wake-up signal monitoring.
[0026] Figure 10 is a diagram of an example apparatus for wireless communication that supports low-power wake-up signal monitoring.DETAILED DESCRIPTION
[0027] Various aspects of the present disclosure are described hereinafter with reference to the accompanying drawings. However, aspects of the present disclosure may be embodied in many different forms and is not to be construed as limited to any specific aspect illustrated by or described with reference to an accompanying drawing or otherwise presented in this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. One skilled in the art may appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using various combinations or quantities of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover an apparatus having, or a method that is practiced using, other structures and / or functionalities in addition to or other than the structures and / or functionalities with which various aspects of the disclosure set forth herein may be practiced. Any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
[0028] Several aspects of telecommunication systems will now be presented with reference to various methods, operations, apparatuses, and techniques. These methods, operations, apparatuses, and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively referred to as “elements” ) . These elements may be implemented using hardware, software, or a combination of hardware and software. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
[0029] Low-power wake-up signaling may be used in wireless communication systems for reducing energy consumption. A user equipment (UE) or other device may enter a low-power state (such as a sleep state) in order to reduce energy consumption and conserve battery resources. A low-power (LP) wake-up signal (WUS) (LP-WUS) may be used to wake the UE from the low-power state. The LP-WUS is an energy-efficient signal that requires minimal power to be received by an LP wake-up receiver (LP-WUR) of the UE. The LP-WUS may have a low frequency and a low data rate in order to reduce energy consumption by the UE. The LP-WUR may be configured to continually listen for the LP-WUS while consuming limited power. The LP-WUR may remain in the low-power state until the LP-WUR detects the LP-WUS. Upon detecting the LP-WUS, the LP-WUR may activate a main radio (MR) of the UE. The LP-WUR may be optimized to be highly sensitive to the wake-up signal while filtering out other signals in order to improve a likelihood that the LP-WUR only wakes up for the intended communication. Once the LP-WUR detects and activates the system, the main radio may be activated. The main radio may be responsible for handling standard communication tasks such as transmitting and receiving data at higher speeds and frequencies than the LP-WUS. The main radio may consume more power and may be capable of more complex processing and communication tasks than the LP-WUR. The main radio may be deactivated or placed into a sleep state to preserve energy when the main radio is not being used.
[0030] The LP-WUR may have a simpler hardware design and reduced processing capabilities compared to the main radio. For example, the LP-WUR may include a frequency-locked loop (FLL) rather than a phase-locked loop (PLL) for non-coherent demodulation (for example, of on-off keying (OOK signals) ) and / or may use Goertzel filters rather than a fast Fourier transform (FFT) for receiving narrow band signals on a limited number of sub-carriers. Modulation and transmission of the LP-WUS by a network node may be compatible with New Radio (NR) orthogonal frequency division multiplexing (OFDM) , for example, in order to reduce interference due to frequency leakage between the LP-WUS and NR signals. In some examples, the LP-WUS may be modulated in a bandwidth over an OFDM subcarrier grid. The modulated LP-WUS signals may be generated in every OFDM symbol duration and a cyclic prefix (CP) may be added after a generated time domain symbol. Within each OFDM symbol duration, one or more bits of the LP-WUS sequence may be generated and a sequence may span multiple symbol durations.
[0031] The LP-WUR hardware may generally be separate from the hardware of the main radio. However, the LP-WUR and the main radio may share one or more hardware components, such as a filter or an automatic gain control (AGC) component, for example, to reduce hardware complexity and / or to further reduce energy consumption. Therefore, it may not always be possible for the LP-WUR and the main radio to be operational at the same time. The LP-WUR and the main radio may operate in one or more modes to reduce a likelihood of the LP-WUR interfering with an operation of the main radio. In a first mode (Mode 1) , the main radio is not to be used for transmission or reception operations when the LP-WUR is turned on for LP-WUS or LP synchronization signal (LP-SS) monitoring. In a second mode (Mode 2) , the main radio is not to receive within a carrier when the LP-WUR is turned on for LP-WUS or LP-SS monitoring. In a third mode (Mode 3) , the main radio is not to transmit within the carrier when the LP-WUR is turned on for LP-WUS or LP-SS monitoring. In a fourth mode (Mode 4) , the main radio may be used for transmitting or receiving when the LP-WUR is turned on for LP-WUS or LP-SS monitoring.
[0032] When operating in the first mode, the LP-WUR exclusively utilizes the UE hardware components shared with the main radio for both transmission and reception. This design may be the simplest design (for example, may require the fewest hardware components) of each of the modes, but may limit UE capabilities if frequency division duplexing (FDD) or time-division duplexing (TDD) carrier aggregation (CA) is configured. When operating in the second mode, the LP-WUR operation exclusively utilizes the hardware shared with the main radio receiver. When operating in the third mode, the main radio may only support half-duplex (HD) operations and may share some receiver hardware components with the LP-WUR. When the UE is monitoring for the LP-WUS or LP-SS, the main radio may not be able to transmit (and may or may not be able to receive) . In the second mode and the third mode, the bandwidth for communications may be within a carrier or frequency band. In the fourth mode, the main radio and the LP-WUR operations are independent. Therefore, the main radio and the LP-WUR may have separate hardware components for transmitting and receiving. In some examples, the UE may not be configured to transmit information indicating whether the UE is operating in the first mode, the second mode, the third mode, or the fourth mode. Additionally, a network node or other device communicating with the UE may not be configured to receive information indicating whether the UE is operating in the first mode, the second mode, the third mode, or the fourth mode. This may result in one or more transmissions by the network node not being received by the UE. For example, a UE operating in the first mode or the second mode may not be able to receive a communication transmitted by the network node. This may result in increased network resource consumption, for example, since the network node may need to perform a retransmission of the communication that is not received by the UE. Additionally or alternatively, this may result in increased UE power consumption, for example, due to the UE receiving communication signals from the network node while the UE is in a low power state.
[0033] Various aspects generally relate to wireless communications. Some aspects more specifically relate to low-power wake-up signal monitoring. In some aspects, a UE may transmit capability information indicating one or more modes that are supported by the UE. For example, the UE may transmit capability information indicating whether the UE supports the first mode, the second mode, the third mode, or the fourth mode. The capability information may be reported separately for half-duplex FDD and half-duplex TDD carrier aggregation. The LP-WUS and the LP-SS may be higher-layer configured for downlink reception when the UE is operating using half-duplex. In some aspects, the UE may be configured with one or more rules to be followed when the UE is using half-duplex FDD and is configured to receive the LP-WUS and the LP-SS. For example, if the UE is configured to receive the LP-WUS or the LP-SS in a set of symbols, the UE may be configured to receive the LP-WUS or the LP-SS if the UE does not detect a downlink control information (DCI) format that indicates for the UE to perform a physical uplink shared channel (PUSCH) , physical uplink control channel (PUCCH) , physical random access channel (PRACH) , or sounding reference signal (SRS) transmission in at least one symbol of the set of symbols. In some other aspects, the UE may be configured with one or more rules to be followed when the UE is using half-duplex TDD and is configured to receive the LP-WUS and the LP-SS. For example, the UE may be configured to identify a reference cell for a symbol as an active cell with a smallest cell index among configured multiple serving cells if the UE is not capable of simultaneous transmission and reception (for example, as indicated by simultaneousRxTxInterBandCA) among the multiple serving cells, or the cells of each band, respectively, if the UE is capable of simultaneous transmission and reception (for example, by simultaneousRxTxInterBandCA) for the configured multiple serving cells, where the symbol is configured as downlink if the symbol is flexible and the UE is configured to receive a physical downlink control channel (PDCCH) , physical downlink shared channel (PDSCH) , channel state information reference signal (CSI-RS) , LP-WUS, or LP-SS on the symbol.
[0034] Particular aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. In some examples, by transmitting capability information that indicates one or more modes supported by the UE, the described techniques can be used to improve communications between the UE and the network node, for example, by configuring the network node with information indicating whether the MR of the UE is active or inactive. In some examples, by transmitting capability information that indicates whether the UE supports the first mode, the second mode, the third mode, and / or the fourth mode, the described techniques can be used to decrease network resource consumption, for example, by reducing transmissions by the network node to the UE while the MR of the UE is not active. In some examples, by transmitting capability information that indicates whether the UE supports the first mode, the second mode, the third mode, and / or the fourth mode, the described techniques can be used to reduce UE power consumption, for example, by reducing communications received by the UE while the MR of the UE is not active. In some examples, by transmitting the capability information separately for half-duplex FDD and half-duplex TDD carrier aggregation, the described techniques can be used to enable the UE and the network node to adjust communications in accordance with one or more rules that are based at least in part on the communication mode of the UE and that are based at least in part on whether the UE is operating using half-duplex FDD or half-duplex TDD carrier aggregation.
[0035] In some aspects, the UE may perform a switch from the main radio to the LP-WUR prior to performing LP-WUS and LP-SS monitoring. The time period it takes to perform such a switch from the MR to the LP-WUR may be referred to as an MR-LR transition time (TMR-LR) . Additionally, the UE may perform a switch from the LP-WUR to the MR after detecting the LP-WUS or the LP-SS. The time period it takes to perform such a switch from the LP-WUR to the MR may be referred to as the LR-MR transition time (TLR-MR) . In some aspects, if the UE does not perform an uplink transmission in a symbol where the UE receives the LP-WUS or the LP-SS, the UE may be configured not to perform an uplink transmission within the MR-LR transition time that occurs before the symbol and / or within the LR-MR transition time that occurs after the symbol. In some other aspects, if the UE does not monitor for the LP-WUS and the LP-SS in a symbol where the UE performs an uplink transmission, the UE may be configured not to monitor for the LP-WUS and the LP-SS within the MR-LR transition time that occurs before the symbol and / or within the LR-MR transition time that occurs after the symbol.
[0036] Particular aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. In some examples, by reducing transmissions by the UE during the MR-LR transition time and / or the LR-MR transition time, the described techniques can be used to reduce collisions in the communication system. For example, by reducing uplink transmissions by the UE during the MR-LR transition time and / or the LR-MR transition time, the described techniques can be used to reduce a likelihood of the uplink transmissions colliding or interfering with reception of the LP-WUS or the LP-SS. In some examples, by reducing monitoring by the UE during the MR-LR transition time and / or the LR-MR transition time, the described techniques can be used to reduce UE power consumption, for example, by reducing a time period during which the UE monitors for LP-WUS and / or LP-SS. These example advantages, among others, are described in more detail below.
[0037] Multiple-access radio access technologies (RATs) have been adopted in various telecommunication standards to provide common protocols that enable wireless communication devices to communicate on a municipal, enterprise, national, regional, or global level. For example, 5G New Radio (NR) is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . 5G NR supports various technologies and use cases including enhanced mobile broadband (eMBB) , ultra-reliable low-latency communication (URLLC) , massive machine-type communication (mMTC) , millimeter wave (mmWave) technology, beamforming, network slicing, edge computing, Internet of Things (IoT) connectivity and management, and network function virtualization (NFV) .
[0038] As the demand for broadband access increases and as technologies supported by wireless communication networks evolve, further technological improvements may be adopted in or implemented for 5G NR or future RATs, such as 6G, to further advance the evolution of wireless communication for a wide variety of existing and new use cases and applications. Such technological improvements may be associated with new frequency band expansion, licensed and unlicensed spectrum access, overlapping spectrum use, small cell deployments, non-terrestrial network (NTN) deployments, disaggregated network architectures and network topology expansion, device aggregation, advanced duplex communication, sidelink and other device-to-device direct communication, IoT (including passive or ambient IoT) networks, reduced capability (RedCap) UE functionality, industrial connectivity, multiple-subscriber implementations, high-precision positioning, radio frequency (RF) sensing, and / or artificial intelligence or machine learning (AI / ML) , among other examples. These technological improvements may support use cases such as wireless backhauls, wireless data centers, extended reality (XR) and metaverse applications, meta services for supporting vehicle connectivity, holographic and mixed reality communication, autonomous and collaborative robots, vehicle platooning and cooperative maneuvering, sensing networks, gesture monitoring, human-brain interfacing, digital twin applications, asset management, and universal coverage applications using non-terrestrial and / or aerial platforms, among other examples. The methods, operations, apparatuses, and techniques described herein may enable one or more of the foregoing technologies and / or support one or more of the foregoing use cases.
[0039] Figure 1 is a diagram illustrating an example of a wireless communication network 100. The wireless communication network 100 may be or may include elements of a 5G (or NR) network or a 6G network, among other examples. The wireless communication network 100 may include multiple network nodes 110, shown as a network node (NN) 110a, a network node 110b, a network node 110c, and a network node 110d. The network nodes 110 may support communications with multiple UEs 120, shown as a UE 120a, a UE 120b, a UE 120c, a UE 120d, and a UE 120e.
[0040] The network nodes 110 and the UEs 120 of the wireless communication network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, carriers, and / or channels. For example, devices of the wireless communication network 100 may communicate using one or more operating bands. In some aspects, multiple wireless networks 100 may be deployed in a given geographic area. Each wireless communication network 100 may support a particular RAT (which may also be referred to as an air interface) and may operate on one or more carrier frequencies in one or more frequency ranges. Examples of RATs include a 4G RAT, a 5G / NR RAT, and / or a 6G RAT, among other examples. In some examples, when multiple RATs are deployed in a given geographic area, each RAT in the geographic area may operate on different frequencies to avoid interference with one another.
[0041] Various operating bands have been defined as frequency range designations FR1 (410 MHz through 7.125 GHz) , FR2 (24.25 GHz through 52.6 GHz) , FR3 (7.125 GHz through 24.25 GHz) , FR4a or FR4-1 (52.6 GHz through 71 GHz) , FR4 (52.6 GHz through 114.25 GHz) , and FR5 (114.25 GHz through 300 GHz) . Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in some documents and articles. Similarly, FR2 is often referred to (interchangeably) as a “millimeter wave” band in some documents and articles, despite being different than the extremely high frequency (EHF) band (30 GHz through 300 GHz) , which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band. The frequencies between FR1 and FR2 are often referred to as mid-band frequencies, which include FR3. Frequency bands falling within FR3 may inherit FR1 characteristics or FR2 characteristics, and thus may effectively extend features of FR1 or FR2 into mid-band frequencies. Thus, “sub-6 GHz, ” if used herein, may broadly refer to frequencies that are less than 6 GHz, that are within FR1, and / or that are included in mid-band frequencies. Similarly, the term “millimeter wave, ” if used herein, may broadly refer to frequencies that are included in mid-band frequencies, that are within FR2, FR4, FR4-a or FR4-1, or FR5, and / or that are within the EHF band. Higher frequency bands may extend 5G NR operation, 6G operation, and / or other RATs beyond 52.6 GHz. For example, each of FR4a, FR4-1, FR4, and FR5 falls within the EHF band. In some examples, the wireless communication network 100 may implement dynamic spectrum sharing (DSS) , in which multiple RATs (for example, 4G / LTE and 5G / NR) are implemented with dynamic bandwidth allocation (for example, based on user demand) in a single frequency band. It is contemplated that the frequencies included in these operating bands (for example, FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and techniques described herein may be applicable to those modified frequency ranges.
[0042] A network node 110 may include one or more devices, components, or systems that enable communication between a UE 120 and one or more devices, components, or systems of the wireless communication network 100. A network node 110 may be, may include, or may also be referred to as an NR network node, a 5G network node, a 6G network node, a Node B, an eNB, a gNB, an access point (AP) , a transmission reception point (TRP) , a mobility element, a core, a network entity, a network element, a network equipment, and / or another type of device, component, or system included in a radio access network (RAN) .
[0043] A network node 110 may be implemented as a single physical node (for example, a single physical structure) or may be implemented as two or more physical nodes (for example, two or more distinct physical structures) . For example, a network node 110 may be a device or system that implements part of a radio protocol stack, a device or system that implements a full radio protocol stack (such as a full gNB protocol stack) , or a collection of devices or systems that collectively implement the full radio protocol stack. For example, and as shown, a network node 110 may be an aggregated network node (having an aggregated architecture) , meaning that the network node 110 may implement a full radio protocol stack that is physically and logically integrated within a single node (for example, a single physical structure) in the wireless communication network 100. For example, an aggregated network node 110 may consist of a single standalone base station or a single TRP that uses a full radio protocol stack to enable or facilitate communication between a UE 120 and a core network of the wireless communication network 100.
[0044] Alternatively, and as also shown, a network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station) , meaning that the network node 110 may implement a radio protocol stack that is physically distributed and / or logically distributed among two or more nodes in the same geographic location or in different geographic locations. For example, a disaggregated network node may have a disaggregated architecture. In some deployments, disaggregated network nodes 110 may be used in an integrated access and backhaul (IAB) network, in an open radio access network (O-RAN) (such as a network configuration in compliance with the O-RAN Alliance) , or in a virtualized radio access network (vRAN) , also known as a cloud radio access network (C-RAN) , to facilitate scaling by separating base station functionality into multiple units that can be individually deployed.
[0045] The network nodes 110 of the wireless communication network 100 may include one or more central units (CUs) , one or more distributed units (DUs) , and / or one or more radio units (RUs) . A CU may host one or more higher layer control functions, such as radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, and / or service data adaptation protocol (SDAP) functions, among other examples. A DU may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and / or one or more higher physical (PHY) layers depending, at least in part, on a functional split, such as a functional split defined by the 3GPP. In some examples, a DU also may host one or more lower PHY layer functions, such as a fast Fourier transform (FFT) , an inverse FFT (iFFT) , beamforming, physical random access channel (PRACH) extraction and filtering, and / or scheduling of resources for one or more UEs 120, among other examples. An RU may host RF processing functions or lower PHY layer functions, such as an FFT, an iFFT, beamforming, or PRACH extraction and filtering, among other examples, according to a functional split, such as a lower layer functional split. In such an architecture, each RU can be operated to handle over the air (OTA) communication with one or more UEs 120.
[0046] In some aspects, a single network node 110 may include a combination of one or more CUs, one or more DUs, and / or one or more RUs. Additionally or alternatively, a network node 110 may include one or more Near-Real Time (Near-RT) RAN Intelligent Controllers (RICs) and / or one or more Non-Real Time (Non-RT) RICs. In some examples, a CU, a DU, and / or an RU may be implemented as a virtual unit, such as a virtual central unit (VCU) , a virtual distributed unit (VDU) , or a virtual radio unit (VRU) , among other examples. A virtual unit may be implemented as a virtual network function, such as associated with a cloud deployment.
[0047] Some network nodes 110 (for example, a base station, an RU, or a TRP) may provide communication coverage for a particular geographic area. In the 3GPP, the term “cell” can refer to a coverage area of a network node 110 or to a network node 110 itself, depending on the context in which the term is used. A network node 110 may support one or multiple (for example, three) cells. In some examples, a network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, or another type of cell. A macro cell may cover a relatively large geographic area (for example, several kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femto cell may cover a relatively small geographic area (for example, a home) and may allow restricted access by UEs 120 having association with the femto cell (for example, UEs 120 in a closed subscriber group (CSG) ) . A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. A network node 110 for a femto cell may be referred to as a femto network node or an in-home network node.
[0048] The wireless communication network 100 may be a heterogeneous network that includes network nodes 110 of different types, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, aggregated network nodes, and / or disaggregated network nodes, among other examples. In the example shown in Figure 1, the network node 110a may be a macro network node for a macro cell 130a, the network node 110b may be a pico network node for a pico cell 130b, and the network node 110c may be a femto network node for a femto cell 130c. Various different types of network nodes 110 may generally transmit at different power levels, serve different coverage areas, and / or have different impacts on interference in the wireless communication network 100 than other types of network nodes 110. For example, macro network nodes may have a high transmit power level (for example, 5 to 40 watts) , whereas pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (for example, 0.1 to 2 watts) .
[0049] In some examples, a network node 110 may be, may include, or may operate as an RU, a TRP, or a base station that communicates with one or more UEs 120 via a radio access link (which may be referred to as a “Uu” link) . The radio access link may include a downlink and an uplink. “Downlink” (or “DL” ) refers to a communication direction from a network node 110 to a UE 120, and “uplink” (or “UL” ) refers to a communication direction from a UE 120 to a network node 110.
[0050] In some examples, any network node 110 that relays communications may be referred to as a relay network node, a relay station, or simply as a relay. A relay may receive a transmission of a communication from an upstream station (for example, another network node 110 or a UE 120) and transmit the communication to a downstream station (for example, a UE 120 or another network node 110) . In this case, the wireless communication network 100 may include or be referred to as a “multi-hop network. ” In the example shown in Figure 1, the network node 110d (for example, a relay network node) may communicate with the network node 110a (for example, a macro network node) and the UE 120d in order to facilitate communication between the network node 110a and the UE 120d. Additionally or alternatively, a UE 120 may be or may operate as a relay station that can relay transmissions to or from other UEs 120. A UE 120 that relays communications may be referred to as a UE relay or a relay UE, among other examples.
[0051] The UEs 120 may be physically dispersed throughout the wireless communication network 100, and each UE 120 may be stationary or mobile. A UE 120 may be, may include, or may be included in an access terminal, another terminal, a mobile station, or a subscriber unit. A UE 120 may be, include, or be coupled with a cellular phone (for example, a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (for example, a smart watch, smart clothing, smart glasses, a smart wristband, and / or smart jewelry, such as a smart ring or a smart bracelet) , an entertainment device (for example, a music device, a video device, and / or a satellite radio) , an XR device, a vehicular component or sensor, a smart meter or sensor, industrial manufacturing equipment, a Global Navigation Satellite System (GNSS) device (such as a Global Positioning System device or another type of positioning device) , a UE function of a network node, and / or any other suitable device or function that may communicate via a wireless medium.
[0052] A UE 120 and / or a network node 110 may include one or more chips, system-on-chips (SoCs) , chipsets, packages, or devices that individually or collectively constitute or comprise a processing system. The processing system includes processor (or “processing” ) circuitry in the form of one or multiple processors, microprocessors, processing units (such as central processing units (CPUs) , graphics processing units (GPUs) , neural processing units (NPUs) and / or digital signal processors (DSPs) ) , processing blocks, application-specific integrated circuits (ASIC) , programmable logic devices (PLDs) (such as field programmable gate arrays (FPGAs) ) , or other discrete gate or transistor logic or circuitry (all of which may be generally referred to herein individually as “processors” or collectively as “the processor” or “the processor circuitry” ) . One or more of the processors may be individually or collectively configurable or configured to perform various functions or operations described herein. A group of processors collectively configurable or configured to perform a set of functions may include a first processor configurable or configured to perform a first function of the set and a second processor configurable or configured to perform a second function of the set, or may include the group of processors all being configured or configurable to perform the set of functions.
[0053] The processing system may further include memory circuitry in the form of one or more memory devices, memory blocks, memory elements or other discrete gate or transistor logic or circuitry, each of which may include tangible storage media such as random-access memory (RAM) or read-only memory (ROM) , or combinations thereof (all of which may be generally referred to herein individually as “memories” or collectively as “the memory” or “the memory circuitry” ) . One or more of the memories may be coupled (for example, operatively coupled, communicatively coupled, electronically coupled, or electrically coupled) with one or more of the processors and may individually or collectively store processor-executable code (such as software) that, when executed by one or more of the processors, may configure one or more of the processors to perform various functions or operations described herein. Additionally or alternatively, 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. The processing system may further include or be coupled with one or more modems (such as a Wi-Fi (for example, IEEE compliant) modem or a cellular (for example, 3GPP 4G LTE, 5G, or 6G compliant) modem) . In some implementations, one or more processors of the processing system include or implement one or more of the modems. The processing system may further include or be coupled with multiple radios (collectively “the radio” ) , multiple RF chains, or multiple transceivers, each of which may in turn be coupled with one or more of multiple antennas. In some implementations, one or more processors of the processing system include or implement one or more of the radios, RF chains or transceivers. The UE 120 may include or may be included in a housing that houses components associated with the UE 120 including the processing system.
[0054] In some examples, two or more UEs 120 (for example, shown as UE 120a and UE 120e) may communicate directly with one another using sidelink communications (for example, without communicating by way of a network node 110 as an intermediary) . As an example, the UE 120a may directly transmit data, control information, or other signaling as a sidelink communication to the UE 120e. This is in contrast to, for example, the UE 120a first transmitting data in an UL communication to a network node 110, which then transmits the data to the UE 120e in a DL communication.
[0055] In some aspects, the UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may transmit capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and receive scheduling information that is based at least in part on the capability information. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.
[0056] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may receive capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and transmit scheduling information that is based at least in part on the capability information. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0057] Figure 2 is a diagram illustrating an example network node 110 in communication with an example UE 120 in a wireless network.
[0058] As shown in Figure 2, the network node 110 may include a data source 212, a transmit processor 214, a transmit (TX) MIMO processor 216, a set of modems 232 (shown as 232a through 232t, where t ≥ 1) , a set of antennas 234 (shown as 234a through 234v, where v ≥ 1) , a MIMO detector 236, a receive processor 238, a data sink 239, a controller / processor 240, a memory 242, a communication unit 244, a scheduler 246, and / or a communication manager 150, among other examples. In some configurations, one or a combination of the antenna (s) 234, the modem (s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 214, and / or the TX MIMO processor 216 may be included in a transceiver of the network node 110. The transceiver may be under control of and used by one or more processors, such as the controller / processor 240, and in some aspects in conjunction with processor-readable code stored in the memory 242, to perform aspects of the methods, processes, and / or operations described herein. In some aspects, the network node 110 may include one or more interfaces, communication components, and / or other components that facilitate communication with the UE 120 or another network node.
[0059] The terms “processor, ” “controller, ” or “controller / processor” may refer to one or more controllers and / or one or more processors. For example, reference to “a / the processor” or “a / the controller / processor” (in the singular) should be understood to refer to any one or more of the processors described in connection with Figure 2, such as a single processor or a combination of multiple different processors. Reference to “one or more processors” should be understood to refer to any one or more of the processors described in connection with Figure 2. For example, one or more processors of the network node 110 may include transmit processor 214, TX MIMO processor 216, MIMO detector 236, receive processor 238, and / or controller / processor 240. Similarly, one or more processors of the UE 120 may include MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, and / or controller / processor 280.
[0060] In some aspects, a single processor may perform all of the operations described as being performed by the one or more processors. In some aspects, a first set of (one or more) processors of the one or more processors may perform a first operation described as being performed by the one or more processors, and a second set of (one or more) processors of the one or more processors may perform a second operation described as being performed by the one or more processors. The first set of processors and the second set of processors may be the same set of processors or may be different sets of processors. Reference to “one or more memories” should be understood to refer to any one or more memories of a corresponding device, such as the memory described in connection with Figure 2. For example, operation described as being performed by one or more memories can be performed by the same subset of the one or more memories or different subsets of the one or more memories.
[0061] For downlink communication from the network node 110 to the UE 120, the transmit processor 214 may receive data ( “downlink data” ) intended for the UE 120 (or a set of UEs that includes the UE 120) from the data source 212 (such as a data pipeline or a data queue) . In some examples, the transmit processor 214 may select one or more MCSs for the UE 120 in accordance with one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process the data (for example, including encoding the data) for transmission to the UE 120 on a downlink in accordance with the MCS (s) selected for the UE 120 to generate data symbols. The transmit processor 214 may process system information (for example, semi-static resource partitioning information (SRPI) ) and / or control information (for example, CQI requests, grants, and / or upper layer signaling) and provide overhead symbols and / or control symbols. The transmit processor 214 may generate reference symbols for reference signals (for example, a cell-specific reference signal (CRS) , a demodulation reference signal (DMRS) , or a channel state information (CSI) reference signal (CSI-RS) ) and / or synchronization signals (for example, a primary synchronization signal (PSS) or a secondary synchronization signals (SSS) ) .
[0062] The TX MIMO processor 216 may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, and / or the reference symbols, if applicable, and may provide a set of output symbol streams (for example, T output symbol streams) to the set of modems 232. For example, each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 232. Each modem 232 may use the respective modulator component to process (for example, to modulate) a respective output symbol stream (for example, for orthogonal frequency division multiplexing (OFDM) ) to obtain an output sample stream. Each modem 232 may further use the respective modulator component to process (for example, convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain a time domain downlink signal. The modems 232a through 232t may together transmit a set of downlink signals (for example, T downlink signals) via the corresponding set of antennas 234.
[0063] For uplink communication from the UE 120 to the network node 110, uplink signals from the UE 120 may be received by an antenna 234, may be processed by a modem 232 (for example, a demodulator component, shown as DEMOD, of a modem 232) , may be detected by the MIMO detector 236 (for example, a receive (Rx) MIMO processor) if applicable, and / or may be further processed by the receive processor 238 to obtain decoded data and / or control information. The receive processor 238 may provide the decoded data to a data sink 239 (which may be a data pipeline, a data queue, and / or another type of data sink) and provide the decoded control information to a processor, such as the controller / processor 240.
[0064] The network node 110 may use the scheduler 246 to schedule one or more UEs 120 for downlink or uplink communications. In some aspects, the scheduler 246 may use DCI to dynamically schedule DL transmissions to the UE 120 and / or UL transmissions from the UE 120. In some examples, the scheduler 246 may allocate recurring time domain resources and / or frequency domain resources that the UE 120 may use to transmit and / or receive communications using an RRC configuration (for example, a semi-static configuration) , for example, to perform semi-persistent scheduling (SPS) or to configure a configured grant (CG) for the UE 120.
[0065] One or more of the transmit processor 214, the TX MIMO processor 216, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, and / or the controller / processor 240 may be included in an RF chain of the network node 110. An RF chain may include one or more filters, mixers, oscillators, amplifiers, analog-to-digital converters (ADCs) , and / or other devices that convert between an analog signal (such as for transmission or reception via an air interface) and a digital signal (such as for processing by one or more processors of the network node 110) . In some aspects, the RF chain may be or may be included in a transceiver of the network node 110.
[0066] In some examples, the network node 110 may use the communication unit 244 to communicate with a core network and / or with other network nodes. The communication unit 244 may support wired and / or wireless communication protocols and / or connections, such as Ethernet, optical fiber, common public radio interface (CPRI) , and / or a wired or wireless backhaul, among other examples. The network node 110 may use the communication unit 244 to transmit and / or receive data associated with the UE 120 or to perform network control signaling, among other examples. The communication unit 244 may include a transceiver and / or an interface, such as a network interface.
[0067] The UE 120 may include a set of antennas 252 (shown as antennas 252a through 252r, where r ≥ 1) , a set of modems 254 (shown as modems 254a through 254u, where u ≥ 1) , a MIMO detector 256, a receive processor 258, a data sink 260, a data source 262, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, a memory 282, and / or a communication manager 140, among other examples. One or more of the components of the UE 120 may be included in a housing 284. In some aspects, one or a combination of the antenna (s) 252, the modem (s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, or the TX MIMO processor 266 may be included in a transceiver that is included in the UE 120. The transceiver may be under control of and used by one or more processors, such as the controller / processor 280, and in some aspects in conjunction with processor-readable code stored in the memory 282, to perform aspects of the methods, processes, or operations described herein. In some aspects, the UE 120 may include another interface, another communication component, and / or another component that facilitates communication with the network node 110 and / or another UE 120.
[0068] For downlink communication from the network node 110 to the UE 120, the set of antennas 252 may receive the downlink communications or signals from the network node 110 and may provide a set of received downlink signals (for example, R received signals) to the set of modems 254. For example, each received signal may be provided to a respective demodulator component (shown as DEMOD) of a modem 254. Each modem 254 may use the respective demodulator component to condition (for example, filter, amplify, downconvert, and / or digitize) a received signal to obtain input samples. Each modem 254 may use the respective demodulator component to further demodulate or process the input samples (for example, for OFDM) to obtain received symbols. The MIMO detector 256 may obtain received symbols from the set of modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols. The receive processor 258 may process (for example, decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260 (which may include a data pipeline, a data queue, and / or an application executed on the UE 120) , and may provide decoded control information and system information to the controller / processor 280.
[0069] For uplink communication from the UE 120 to the network node 110, the transmit processor 264 may receive and process data ( “uplink data” ) from a data source 262 (such as a data pipeline, a data queue, and / or an application executed on the UE 120) and control information from the controller / processor 280. The control information may include one or more parameters, feedback, one or more signal measurements, and / or other types of control information. In some aspects, the receive processor 258 and / or the controller / processor 280 may identify, for a received signal (such as received from the network node 110 or another UE) , one or more parameters relating to transmission of the uplink communication. The one or more parameters may include a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, a CQI parameter, or a transmit power control (TPC) parameter, among other examples. The control information may include an indication of the RSRP parameter, the RSSI parameter, the RSRQ parameter, the CQI parameter, the TPC parameter, and / or another parameter. The control information may facilitate parameter selection and / or scheduling for the UE 120 by the network node 110.
[0070] The transmit processor 264 may generate reference symbols for one or more reference signals, such as an uplink DMRS, an uplink sounding reference signal (SRS) , and / or another type of reference signal. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266, if applicable, and further processed by the set of modems 254 (for example, for DFT-s-OFDM or CP-OFDM) . The TX MIMO processor 266 may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, and / or the reference symbols, if applicable, and may provide a set of output symbol streams (for example, U output symbol streams) to the set of modems 254. For example, each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 254. Each modem 254 may use the respective modulator component to process (for example, to modulate) a respective output symbol stream (for example, for OFDM) to obtain an output sample stream. Each modem 254 may further use the respective modulator component to process (for example, convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain an uplink signal.
[0071] The modems 254a through 254u may transmit a set of uplink signals (for example, R uplink signals or U uplink symbols) via the corresponding set of antennas 252. An uplink signal may include an uplink control information (UCI) communication, a medium access control (MAC) control element (MAC-CE) communication, an RRC communication, or another type of uplink communication. Uplink signals may be transmitted on a PUSCH, a PUCCH, and / or another type of uplink channel. An uplink signal may carry one or more TBs of data. Sidelink data and control transmissions (that is, transmissions directly between two or more UEs 120) may generally use similar techniques as were described for uplink data and control transmission, and may use sidelink-specific channels such as a physical sidelink shared channel (PSSCH) , a physical sidelink control channel (PSCCH) , and / or a physical sidelink feedback channel (PSFCH) .
[0072] One or more antennas of the set of antennas 252 or the set of antennas 234 may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples. An antenna panel, an antenna group, a set of antenna elements, or an antenna array may include one or more antenna elements (within a single housing or multiple housings) , a set of coplanar antenna elements, a set of non-coplanar antenna elements, or one or more antenna elements coupled with one or more transmission or reception components, such as one or more components of Figure 2. As used herein, “antenna” can refer to one or more antennas, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays. “Antenna panel” can refer to a group of antennas (such as antenna elements) arranged in an array or panel, which may facilitate beamforming by manipulating parameters of the group of antennas. “Antenna module” may refer to circuitry including one or more antennas, which may also include one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device.
[0073] In some examples, each of the antenna elements of an antenna 234 or an antenna 252 may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element cross-polarized with a second sub-element that can be used to independently transmit cross-polarized signals. The antenna elements may include patch antennas, dipole antennas, and / or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. A spacing between antenna elements may be such that signals with a desired wavelength transmitted separately by the antenna elements may interact or interfere constructively and destructively along various directions (such as to form a desired beam) . For example, given an expected range of wavelengths or frequencies, the spacing may provide a quarter wavelength, a half wavelength, or another fraction of a wavelength of spacing between neighboring antenna elements to allow for the desired constructive and destructive interference patterns of signals transmitted by the separate antenna elements within that expected range. The amplitudes and / or phases of signals transmitted via antenna elements and / or sub-elements may be modulated and shifted relative to each other (such as by manipulating phase shift, phase offset, and / or amplitude) to generate one or more beams, which is referred to as beamforming. The term “beam” may refer to a directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction. “Beam” may also generally refer to a direction associated with such a directional signal transmission, a set of directional resources associated with the signal transmission (for example, an angle of arrival, a horizontal direction, and / or a vertical direction) , and / or a set of parameters that indicate one or more aspects of a directional signal, a direction associated with the signal, and / or a set of directional resources associated with the signal.
[0074] The network node 110, the controller / processor 240 of the network node 110, the UE 120, the controller / processor 280 of the UE 120, a CU, a DU, an RU, or any other component (s) of Figures 1 or 2 may implement one or more techniques or perform one or more operations associated with low-power wake-up signal monitoring, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, any other component (s) of Figure 2, the CU, the DU, or the RU may perform or direct operations of, for example, process 700 of Figure 7, process 800 of Figure 8, or other processes as described herein (alone or in conjunction with one or more other processors) . The memory 242 may store data and program codes for the network node 110, the network node 110, the CU, the DU, or the RU. The memory 282 may store data and program codes for the UE 120. In some examples, the memory 242 or the memory 282 may include a non-transitory computer-readable medium storing a set of instructions (for example, code or program code) for wireless communication. The memory 242 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types) . The memory 282 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types) . For example, the set of instructions, when executed (for example, directly, or after compiling, converting, or interpreting) by one or more processors of the network node 110, the UE 120, the CU, the DU, or the RU, may cause the one or more processors to perform process 700 of Figure 7, process 800 of Figure 8, or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and / or interpreting the instructions, among other examples.
[0075] In some implementations, one or more of the multiple memories may be configured to store processor-executable code that, when executed, may configure the one or more processors to perform various functions described herein (as part of a processing system) . In some other implementations, the processing system may be pre-configured to perform various functions described herein.
[0076] In some aspects, the UE 120 includes means for transmitting capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and / or means for receiving scheduling information that is based at least in part on the capability information. The means for the UE 120 to perform operations described herein may include, for example, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.
[0077] In some aspects, the network node 110 includes means for receiving capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and / or means for transmitting scheduling information that is based at least in part on the capability information. The means for the network node 110 to perform operations described herein may include, for example, one or more of communication manager 150, transmit processor 214, TX MIMO processor 216, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246.
[0078] Figure 3 is a diagram illustrating an example 300 of low-power wake-up signal monitoring.
[0079] As shown in a first operation associated with reference number 305, the UE 120 may transmit, and the network node 110 may receive, capability information that indicates one or more modes that are supported by an LP-WUR and a main radio associated with the UE 120. In some aspects, transmitting the capability information may include transmitting a capability signal report that indicates one or more modes that are supported by an LP-WUR and a main radio associated with the UE 120. The one or more modes may include, for example, the first mode (Mode 1) , the second mode (Mode 2) , the third mode (Mode 3) , and / or the fourth mode (Mode 4) described herein. In some aspects, the capability information may be transmitted separately for TDD and FDD. For example, the UE 120 may transmit an indication of one or more modes that are supported by the LP-WUR and the main radio for TDD, and / or may transmit an indication of one or more modes that are supported by the LP-WUR and the main radio for FDD. In some aspects, the UE 120 may be able to support the second mode and the third mode simultaneously.
[0080] In one example, the UE may support HD operations with half-duplex FDD or half-duplex TDD carrier aggregation using the third mode. In this example, both the LP-WUR and HD techniques may be used to reduce UE power consumption. LP-WUR operations may include monitoring of the LP-WUS and the LP-SS, which may both be periodic when the LP-WUR is turned on. Thus, for a UE using half-duplex, the LP-WUS and LP-SS may be considered as higher-layer configured for downlink reception.
[0081] The UE 120 may not transmit and receive simultaneously when using HD FDD. In some aspects, a switching gap may be needed when the UE 120 switches between transmission and reception. In some examples, an HD reduced capability (RedCap) UE in a paired spectrum may not be capable of simultaneous transmission and reception on a serving cell with paired spectrum. Neither the UL nor DL may be defined as the reference link to identify the communication direction, for example, for the same type of communication (such as dynamically scheduled or higher-layer configured) , and a communication in one direction does not have a higher priority over the other direction. However, the dynamically scheduled transmission or reception may have a higher priority than a reception or transmission that is configured by higher layers. In some examples, a dynamically scheduled reception has a higher priority than a higher-layer configured reception if the dynamically scheduled reception and the higher-layer configured reception overlap in time. No conflict is to occur (for example, network configuration is to be avoided) between the dedicated higher-layer configured transmission and the higher-layer configured reception. The dedicated higher-layer configuration for downlink may include, for example, PDCCH in a UE search space (USS) , a semi-persistent scheduling (SPS) PDSCH, a CSI-RS, and / or a positioning reference signal (PRS) . The dedicated higher-layer configuration for uplink may include, for example, a configured grant (CG) -PUSCH, PRACH, and / or Message A (MsgA) for contention-free random access (CFRA) , SRS, or PUCCH. If a UE random access channel (RACH) transmission and higher-layer configured reception overlap up to a Tx / Rx switching gap, the UE 120 may identify which one is to be performed, for example, as described below.
[0082] In some aspects, if an HD UE is configured by higher layers to receive a PDCCH, PDSCH, CSI-RS, or DL PRS in a set of symbols, the HD UE may receive the PDCCH, PDSCH, CSI-RS, or DL PRS if the HD UE does not detect a DCI format that indicates for the HD UE to transmit a PUSCH, PUCCH, PRACH, or SRS in at least one symbol of the set of symbols. Otherwise, the HD UE may not receive the PDCCH, PDSCH, CSI-RS, or DL PRS in the set of symbols. In some aspects, the HD UE may not be configured to receive both dedicated higher-layer parameters configuring transmission in a set of symbols and dedicated higher-layer parameters configuring reception in the set of symbols. In this case, the HD UE may not be configured to receive both a Type-0 / 0A / 1 / 2-PDCCH common search space (CSS) set configuration for PDCCH reception in a set of symbols and dedicated higher-layer parameters configuring transmission in the set of symbols. In some aspects, if the HD UE is to receive a PDCCH, PDSCH, CSI-RS, or DL PRS based at least in part on a configuration by higher layers or is indicated in the presence of synchronization signal (SS) or physical broadcast channel (PBCH) (SS / PBCH) blocks within the active DL bandwidth-part (BWP) by ssb-PositionsInBurst in a system information block (SIB) (such as SIB1) , in ServingCellConfigCommon or by NonCellDefiningSSB in a set of symbols, and the HD UE is to transmit a PRACH or MsgA PUSCH triggered by higher layers starting or ending at a symbol that is earlier or later than a switching gap from the RACH and to the higher-layer configured reception and a switching gap from the higher-layer configured reception to the RACH, respectively, from the last or first symbol in the set of symbols, the HD UE may be configured to select, based at least in part on an implementation, whether to transmit the PRACH or the MsgA PUSCH or receive the PDSCH, CSI-RS, DL PRS, PDCCH, or SS / PBCH blocks. For reception of low-power signals, such as the LP-WUS and LP-SS, similar processes may be used for existing higher-layer configured reception by an HD UE. In some aspects, for the PRACH or MsgA PUSCH transmission, the Tx / Rx switching gap may be replaced by the transition time between the MR and LP-WUR.
[0083] In some aspects, when the HD UE is configured to receive the LP-WUS and the LP-SS, one or more rules are to be followed. For example, if the HD UE is configured to receive an LP-WUS or LP-SS in a set of symbols, the HD UE may receive the LP-WUS or LP-SS if the HD UE does not detect a DCI format that indicates for the HD UE to transmit a PUSCH, PUCCH, PRACH, or SRS in at least one symbol of the set of symbols. Otherwise, the HD UE is not to receive the LP-WUS or LP-SS in the set of symbols. Additionally, the HD UE may not be configured to receive both the LP-WUS or LP-SS in a set of symbols and to receive dedicated higher-layer parameters configuring reception in the set of symbols. Further, if the HD UE is to receive an LP-WUS or LP-SS in a set of symbols, and the HD UE is to transmit a PRACH or MsgA PUSCH triggered by higher layers starting or ending at a symbol that is earlier or later than TLR-MR or TMR-LR, respectively, from the last or first symbol in the set of symbols, the HD UE can select, based at least in part on an implementation, whether to transmit the PRACH or the MsgA PUSCH or to receive the LP-WUS or LP-SS.
[0084] In some aspects, for HD TDD CA, a reference cell may be defined to identify a reference direction, and every other cell may be aligned with the reference direction. The reference cell may be an active cell with a smallest cell index among configured serving cells if the UE is not capable of simultaneous transmission and reception across bands (for example, if simultaneousRxTxInterBandCA is not supported) , and the cells of each band, respectively, if the UE is capable of simultaneous transmission and reception across bands (for example, if simultaneousRxTxInterBandCA is supported) . For HD CA, the semi-static DL and UL symbols in the TDD UL / DL configuration and the higher-layer configured reception and transmission in semi-static flexible symbols may be used as the reference direction on the reference cell. The UE may be configured to monitor the LP-WUS and LP-SS in HD carrier aggregation in accordance with one or more of the following rules:
[0085] If the UE is configured with multiple serving cells and is provided with directionalCollisionHandling-r16 = ‘enabled' for a set of serving cell (s) among the configured multiple serving cells, and the UE indicates support of half-DuplexTDD-CA-SameSCS-r16 capability, and the UE is not configured to monitor PDCCH for detection of DCI format 2_0 on any of the multiple serving cells, the UE may identify a reference cell for a symbol as an active cell with the smallest cell index: (i) among the configured multiple serving cells if the UE is not capable of simultaneous transmission and reception as indicated by simultaneousRxTxInterBandCA among the multiple serving cells, and / or (ii) among the cells of each band, respectively, if the UE is capable of simultaneous transmission and reception by simultaneousRxTxInterBandCA for the configured multiple serving cells. The symbol may be configured as: (i) downlink or uplink as indicated by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated) , (ii) as uplink if the symbol is flexible and the UE is configured to transmit SRS, PUCCH, PUSCH, or PRACH on the symbol, or (iii) as downlink if the symbol is flexible and the UE is configured to receive PDCCH, PDSCH, CSI-RS, LP-WUS, or LP-SS on the symbol.
[0086] If another cell among the cells configured with directionalCollisionHandling-r16 operates in the same frequency band as the reference cell, the UE does not expect: (i) a symbol to be indicated as downlink or uplink on the reference cell and as uplink or downlink on another cell, respectively, by tdd-UL-DL-ConfigurationCommon or by tdd-UL-DL-ConfigurationDedicated, (ii) tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated to indicate a symbol as downlink on the reference cell and to detect a DCI format scheduling a transmission on the symbol on another cell, and (iii) to be configured by higher layers to receive PDCCH, PDSCH, CSI-RS, LP-WUS, or LP-SS on a flexible symbol on the reference cell and to detect a DCI format scheduling a transmission on the symbol on another cell.
[0087] If the reference cell and another cell among the cells configured with directionalCollisionHandling-r16 operate in different frequency bands, the UE: (i) assumes that the symbol is flexible, is not required to receive higher-layer configured PDCCH, PDSCH, CSI-RS, LP-WUS, or LP-SS, and not expected to transmit higher-layer configured SRS, PUCCH, PUSCH, or PRACH, when tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated indicates the symbol as downlink or uplink on another cell and as uplink or downlink for the reference cell, respectively, (ii) transmits a signal / channel scheduled by a DCI format on a symbol of another cell when the symbol is indicated as downlink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated for the reference cell, and / or (iii) is not required to receive a higher-layer configured PDCCH, PDSCH, CSI-RS, LP-WUS, or LP-SS on flexible symbols on the reference cell in a set of symbols if the UE detects a DCI format scheduling a transmission on one or more symbols in the set of symbols on another cell.
[0088] Regardless of whether the reference cell and another cell operate in the same or different frequency bands, the UE: (i) does not expect tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated for the reference cell to indicate a symbol as uplink and to detect a DCI format scheduling a reception on the symbol on another cell, (ii) does not expect to be configured by higher layers to transmit SRS, PUCCH, PUSCH, or PRACH on a flexible symbol on the reference cell and to detect a DCI format scheduling a reception on the symbol on another cell, (iii) does not transmit a PUCCH, PUSCH, or PRACH that is configured by higher layers on a set of symbols on another cell if at least one symbol from the set of symbols is indicated as downlink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated or is a symbol corresponding to a PDCCH, PDSCH, CSI-RS, LP-WUS, or LP-SS reception that is configured by higher layers on the reference cell, (iv) does not transmit an SRS that is configured by higher layers on a set of symbols on another cell if the set of symbols is indicated as downlink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated or corresponds to a PDCCH, PDSCH, CSI-RS, LP-WUS, or LP-SS reception that is configured by higher layers on the reference cell, (v) does not receive a PDCCH, PDSCH, CSI-RS, LP-WUS, or LP-SS that is configured by higher layers on a set of symbols on another cell if at least one symbol from the set of symbols is indicated as uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated or is a symbol corresponding to a SRS, PUCCH, PUSCH, or PRACH transmission that is configured by higher layers on the reference cell, (vi) assumes a symbol indicated as downlink or uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated on another cell to be flexible, if the UE is respectively configured by higher layers to transmit SRS, PUCCH, PUSCH, or PRACH or to receive PDCCH, PDSCH, CSI-RS, LP-WUS, or LP-SS on the reference cell, and / or (vii) does not expect to detect a first DCI format scheduling a transmission or reception on a symbol on a first cell and a second DCI format scheduling a reception or transmission on the symbol on a second cell, respectively.
[0089] After the UE applies the processes described above for directional collision handling within the set of cells that have been configured with directionalCollisionHandling-r16, the UE does not expect any directional collision among the serving cells that the UE is not capable of simultaneous transmission and reception.
[0090] In some aspects, the MR receiver may be turned off when the LP-WUR is turned on to monitor LP-WUS and LP-SS. The MR-LR transition time may be considered for other transmissions colliding with the LP-WUS and LP-SS. This may apply, for example, to HD TDD CA and / or when the UE does not monitor for the LP-WUS and LP-SS due to collision with transmissions. In some aspects, the MR-LR transition time may apply in one or more scenarios (for example, in accordance with a UE capability) . In a first scenario, if the UE does not transmit in the UL in a symbol where the UE receives the LP-WUS or LP-SS, the UE also does not transmit in the UL within TMR-LR and TLR-MR before and after the symbol. In a second scenario, if the UE does not monitor LP-WUS and LP-SS in a symbol where the UE transmits in the UL, the UE also does not monitor the LP-WUS and LP-SS within TMR-LR and TLR-MR after and before the symbol.
[0091] As shown in a second operation associated with reference number 310, the network node 110 may transmit, and the UE 120 may receive, scheduling information that is based at least in part on the capability information. For example, the network node 110 may transmit, and the UE 120 may receive, scheduling information based at least in part on whether the UE is operating in the first mode, the second mode, the third mode, and / or the fourth mode, and / or based at least in part on whether the UE is using HD TDD CA or HD FDD CA.
[0092] Figure 4 is a diagram illustrating an example 400 of overlapping random access channel and higher-layer configured receptions. A UE may perform a first RACH transmission 405 and a second RACH transmission 410. Additionally, the UE may receive a higher-layer configured reception 415. The RACH transmission 405 and the higher-layer configured reception 415 may overlap as shown by NTX·RX·TC. The RACH transmission 410 and the higher-layer configured reception 415 may overlap as shown by NRX·TX·TC. As described herein, if an HD UE is to receive a PDCCH, PDSCH, CSI-RS, or DL PRS based at least in part on a configuration by higher layers or is indicated the presence of SS / PBCH blocks within the active DL BWP by ssb-PositionsInBurst in a SIB1 or in ServingCellConfigCommon, or by NonCellDefiningSSB in a set of symbols, and the HD UE is to transmit a PRACH or MsgA PUSCH triggered by higher layers starting or ending at a symbol that is earlier or later than NRX·TX·TC or NTX·RX·TC, respectively, from the last or first symbol in the set of symbols, the HD UE may be configured to select, based at least in part on an implementation, whether to transmit the PRACH or the MsgA PUSCH or receive the PDSCH, CSI-RS, DL PRS, PDCCH, or SS / PBCH blocks. For reception of low-power signals, such as the LP-WUS and LP-SS, similar processes may be used for existing higher-layer configured reception by an HD UE. For example, for the PRACH or MsgA PUSCH transmission, the Tx / Rx switching gap (such as NRX·TX·TC or NTX·RX·TC) may be replaced by the transition time between the MR and LP-WUR.
[0093] Figure 5 is a diagram illustrating examples of reference cells for half-duplex carrier aggregation. For HD TDD CA, a reference cell may be defined to identify a reference direction and every other cell may be aligned with the reference direction. In some aspects, the reference cell may be an active cell with a smallest cell index among configured serving cells if the UE is not capable of simultaneous transmission and reception across bands (for example, if simultaneousRxTxInterBandCA is not supported) . As shown in example 500, reference cell 505 may be an active cell with a smallest cell index among configured serving cells (cell 0) if the UE is not capable of simultaneous transmission and reception across band i and band j. Alternatively, the reference cell may be an active cell with a smallest cell index among the cells of each band, respectively, if the UE is capable of simultaneous transmission and reception across bands (for example, if simultaneousRxTxInterBandCA is supported) . As shown in example 510, reference cell 515 and reference cell 520 may be the active cells with the smallest cell index among the cells of each band i (cell 0) and band j (cell 3) if the UE is capable of simultaneous transmission and reception across the bands.
[0094] Figure 6 is a diagram illustrating examples 600 and 620 of main radio and wake-up receiver transition times. As shown in example 600, the UE may monitor for an LP-SS or LP-WUS 605. Additionally, the UE may (optionally) perform an uplink transmission 610 and an uplink transmission 615. The uplink transmission 610 may be performed during a time period TMR-LR that is before the UE monitors for the LP-SS or LP-WUS 605 and that corresponds to a transition time from the main radio to the WUR. The uplink transmission 615 may be performed during a time period TLR-MR that is after the UE monitors for the LP-SS or LP-WUS 605 and that corresponds to a transition time from the WUR to the main radio. In some aspects, if the UE does not transmit in an uplink symbol where the UE receives the LP-WUS or LP-SS 605, the UE also does not transmit in the uplink within TMR-LR and TLR-MR before and after the symbol (for example, the UE does perform uplink transmissions corresponding to uplink transmission 610 and uplink transmission 615) . As shown in example 620, the UE may perform an uplink transmission 625. Additionally, the UE may (optionally) monitor for LP-SS or LP-WUS 630 and for LP-SS or LP-WUS 635. The monitoring for the LP-SS or LP-WUS 630 may be performed during a time period TLR-MR that is before the uplink transmission 625. The monitoring for the LP-SS or LP-WUS 635 may be performed during a time period TMR-LR that is after the uplink transmission 635. In some aspects, if the UE does not monitor LP-WUS or LP-SS in a symbol where the UE transmits in the UL, the UE also does not monitor the LP-SS or LP-WUS 630 or the LP-SS or LP-WUS 635 within TLR-MR and TMR-LR, respectively, before and after the symbol.
[0095] Figure 7 is a flowchart illustrating an example process 700 performed, for example, at a UE or an apparatus of a UE that supports wireless communications. Example process 700 is an example where the apparatus or the UE (for example, UE 120) performs operations associated with low-power wake-up signal monitoring.
[0096] As shown in Figure 7, in some aspects, process 700 may include transmitting capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio (block 710) . For example, the UE (such as by using communication manager 140 or transmission component 904, depicted in Figure 9) may transmit capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio, as described above.
[0097] As further shown in Figure 7, in some aspects, process 700 may include receiving scheduling information that is based at least in part on the capability information (block 720) . For example, the UE (such as by using communication manager 140 or reception component 902, depicted in Figure 9) may receive scheduling information that is based at least in part on the capability information, as described above.
[0098] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below or in connection with one or more other processes described elsewhere herein.
[0099] In a first additional aspect, transmitting the capability information comprises transmitting a capability signal report that includes the capability information.
[0100] In a second additional aspect, alone or in combination with the first aspect, transmitting the capability information comprises transmitting capability information associated with a time-division duplexing operation and transmitting other capability information associated with a frequency-division duplexing operation.
[0101] In a third additional aspect, alone or in combination with one or more of the first and second aspects, the one or more modes include a first mode, a second mode, a third mode, and a fourth mode, wherein the main radio, when operating in the first mode, is not to be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the second mode, is not to be used for reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the third mode, is not to be used for transmission operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; and the main radio, when operating in the fourth mode, can be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring.
[0102] In a fourth additional aspect, alone or in combination with one or more of the first through third aspects, the capability information indicates that the UE supports the third mode for a half-duplex operation using frequency-division duplexing or time-division duplexing carrier aggregation, wherein a low-power wake-up signal and a low-power synchronization signal are higher-layer configured for downlink reception.
[0103] In a fifth additional aspect, alone or in combination with one or more of the first through fourth aspects, a switching gap for a physical random access channel transmission or a Message A transmission is to be used for a switching time between the low-power wake-up receiver and an uplink transmission by the main radio.
[0104] In a sixth additional aspect, alone or in combination with one or more of the first through fifth aspects, the UE is configured to receive the low-power wake-up signal and the low-power synchronization signal in accordance with one or more rules.
[0105] In a seventh additional aspect, alone or in combination with one or more of the first through sixth aspects, the one or more rules include a rule indicating that the UE is to receive the low-power wake-up signal or the low-power synchronization signal in accordance with the UE being configured to receive the low-power wake-up signal or the low-power synchronization signal in a set of symbols, and the UE not detecting a downlink control information format that indicates for the UE to transmit a physical uplink shared channel communication, a physical uplink control channel communication, a physical random access channel communication, or a sounding reference signal in at least one symbol of the set of symbols.
[0106] In an eighth additional aspect, alone or in combination with one or more of the first through seventh aspects, the rule further indicates that the UE is not to receive the low-power wake-up signal or the low-power synchronization signal in accordance with the UE not receiving the low-power wake-up signal or the low-power synchronization signal in the set of symbols.
[0107] In a ninth additional aspect, alone or in combination with one or more of the first through eighth aspects, the one or more rules include a rule indicating that the UE is not to receive both a dedicated higher-layer parameter configuring reception in a set of symbols and one of the low-power wake-up signal or the low-power synchronization signal in the set of symbols.
[0108] In a tenth additional aspect, alone or in combination with one or more of the first through ninth aspects, the one or more rules include a rule indicating that the UE is to select whether to transmit a physical random access channel transmission or a Message A physical uplink control channel transmission or to receive the low-power wake-up signal or the low-power synchronization signal in accordance with the UE receiving the low-power wake-up signal or the low-power synchronization signal in a set of symbols, and the UE being configured to transmit the physical random access channel transmission or the Message A physical uplink control channel transmission in accordance with a trigger by a higher-layer starting at a symbol that is earlier than a transition time between the low-power wake-up receiver and the main radio or at a symbol that is later than a transmission time between the main radio and the low-power wake-up receiver.
[0109] In an eleventh additional aspect, alone or in combination with one or more of the first through tenth aspects, the UE is configured with a plurality of serving cells and is provided with a directional collision handling enabled indication for a set of serving cells of the plurality of serving cells, the UE indicates support for a half-duplex time-division duplexing carrier aggregation for same sub-carrier spacing capability indicator, the UE is not configured to monitor a physical downlink control channel for detection of a downlink control information format 2_0 on any serving cell of the plurality of serving cells, and the UE is configured to identify a reference cell for a symbol as an active cell with a smallest cell index among the plurality of serving cells in accordance with the UE not being capable of simultaneous transmission and reception as indicated by a simultaneous transmission and reception inter-band carrier aggregation indicator for the plurality of serving cells and among the cells of each band in accordance with the UE being capable of simultaneous transmission and reception as indicated by the simultaneous transmission and reception inter-band carrier aggregation indicator for the plurality of serving cells.
[0110] In a twelfth additional aspect, alone or in combination with one or more of the first through eleventh aspects, the symbol is configured as downlink in accordance with the symbol being flexible and in accordance with the UE being configured to receive a low-power wake-up signal or a low-power synchronization signal on the symbol.
[0111] In a thirteenth additional aspect, alone or in combination with one or more of the first through twelfth aspects, the UE is to assume that the symbol is a flexible symbol, is not to receive a higher-layer configured low-power wake-up signal or low-power synchronization signal, and is not to transmit a higher-layer configured sounding reference signal, physical uplink control channel communication, physical uplink shared channel transmission, or physical random access channel communication in accordance with a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator indicating the symbol as downlink or uplink for the other cell and as uplink or downlink for the reference cell, respectively.
[0112] In a fourteenth additional aspect, alone or in combination with one or more of the first through thirteenth aspects, the UE is not to receive a low-power wake-up signal or low-power synchronization signal on a flexible symbol on the reference cell in a set of symbols in accordance with the UE detecting a downlink control information format scheduling a transmission in one or more symbols of the set of symbols for the other cell.
[0113] In a fifteenth additional aspect, alone or in combination with one or more of the first through fourteenth aspects, the reference cell and another cell operate in a same frequency band or in different frequency bands, and the UE is not to transmit a physical uplink control channel communication, a physical uplink shared channel communication, or a physical random access channel communication that is configured by a higher layer on a set of symbols on another cell in accordance with at least one symbol of the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or being a symbol corresponding to a low-power wake-up signal or low-power synchronization signal reception that is configured by the higher-layer on the reference cell.
[0114] In a sixteenth additional aspect, alone or in combination with one or more of the first through fifteenth aspects, the reference cell and another cell operate in a same frequency band or in different frequency bands, and the UE is not to transmit a sounding reference signal that is configured by the higher-layer on the set of symbols on the other cell in accordance with the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or in accordance with the set of symbols corresponding to a low-power wake-up signal or low-power synchronization signal reception that is configured by the higher-layer on the reference cell.
[0115] In a seventeenth additional aspect, alone or in combination with one or more of the first through sixteenth aspects, the reference cell and another cell operate in a same frequency band or in different frequency bands, and the UE is not to receive a low-power wake-up signal or a low-power synchronization signal that is configured by the higher-layer on the set of symbols on the other cell in accordance with at least one symbol of the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or in accordance with the at least one symbol corresponding to a sounding reference signal, physical uplink control channel, physical uplink shared channel, or physical random access channel reception that is configured by the higher-layer on the reference cell.
[0116] In an eighteenth additional aspect, alone or in combination with one or more of the first through seventeenth aspects, the reference cell and another cell operate in a same frequency band or in different frequency bands, and the UE is to identify a symbol indicated as uplink or downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator on the other cell to be flexible in accordance with the UE being configured by the higher-layer to transmit a sounding reference signal, physical uplink control channel communication, physical uplink shared channel communication, or physician random access channel communication or to receive the low-power wake-up signal or the low-power synchronization signal on the reference cell.
[0117] Although Figure 7 shows example blocks of process 700, in some aspects, process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Figure 7. Additionally or alternatively, two or more of the blocks of process 700 may be performed in parallel.
[0118] Figure 8 is a flowchart illustrating an example process 800 performed, for example, at a network node or an apparatus of a network node that supports wireless communications. Example process 800 is an example where the apparatus or the network node (for example, network node 110) performs operations associated with low-power wake-up signal monitoring.
[0119] As shown in Figure 8, in some aspects, process 800 may include receiving capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio (block 810) . For example, the network node (such as by using communication manager 150 or reception component 1002, depicted in Figure 10) may receive capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio, as described above.
[0120] As further shown in Figure 8, in some aspects, process 800 may include transmitting scheduling information that is based at least in part on the capability information (block 820) . For example, the network node (such as by using communication manager 150 or transmission component 1004, depicted in Figure 10) may transmit scheduling information that is based at least in part on the capability information, as described above.
[0121] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below or in connection with one or more other processes described elsewhere herein.
[0122] In a first additional aspect, receiving the capability information comprises receiving a capability signal report that includes the capability information.
[0123] In a second additional aspect, alone or in combination with the first aspect, receiving the capability information comprises receiving capability information associated with a time-division duplexing operation and receiving other capability information associated with a frequency-division duplexing operation.
[0124] In a third additional aspect, alone or in combination with one or more of the first and second aspects, the one or more modes include a first mode, a second mode, a third mode, and a fourth mode, wherein the main radio, when operating in the first mode, is not to be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the second mode, is not to be used for reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the third mode, is not to be used for transmission operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; and the main radio can be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring.
[0125] In a fourth additional aspect, alone or in combination with one or more of the first through third aspects, the capability information indicates that the UE supports the third mode for a half-duplex operation using frequency-division duplexing or time-division duplexing carrier aggregation, wherein a low-power wake-up signal and a low-power synchronization signal are higher-layer configured for downlink reception by the UE.
[0126] In a fifth additional aspect, alone or in combination with one or more of the first through fourth aspects, a switching gap for a physical random access channel transmission or a Message A transmission is to be used for a switching time between the low-power wake-up receiver and an uplink transmission by the main radio.
[0127] Although Figure 8 shows example blocks of process 800, in some aspects, process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Figure 8. Additionally or alternatively, two or more of the blocks of process 800 may be performed in parallel.
[0128] Figure 9 is a diagram of an example apparatus 900 for wireless communication that supports low-power wake-up signal monitoring. The apparatus 900 may be a UE, or a UE may include the apparatus 900. In some aspects, the apparatus 900 includes a reception component 902, a transmission component 904, and a communication manager 140, which may be in communication with one another (for example, via one or more buses) . As shown, the apparatus 900 may communicate with another apparatus 906 (such as a UE, a network node, or another wireless communication device) using the reception component 902 and the transmission component 904.
[0129] In some aspects, the apparatus 900 may be configured to and / or operable to perform one or more operations described herein in connection with Figures 3-6. Additionally or alternatively, the apparatus 900 may be configured to and / or operable to perform one or more processes described herein, such as process 700 of Figure 7. In some aspects, the apparatus 900 may include one or more components of the UE described above in connection with Figure 2.
[0130] The reception component 902 may receive communications, such as reference signals, control information, and / or data communications, from the apparatus 906. The reception component 902 may provide received communications to one or more other components of the apparatus 900, such as the communication manager 140. In some aspects, the reception component 902 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components. In some aspects, the reception component 902 may include one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receive processors, one or more controllers / processors, and / or one or more memories of the UE described above in connection with Figure 2.
[0131] The transmission component 904 may transmit communications, such as reference signals, control information, and / or data communications, to the apparatus 906. In some aspects, the communication manager 140 may generate communications and may transmit the generated communications to the transmission component 904 for transmission to the apparatus 906. In some aspects, the transmission component 904 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 906. In some aspects, the transmission component 904 may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, and / or one or more memories of the UE described above in connection with Figure 2. In some aspects, the transmission component 904 may be co-located with the reception component 902 in one or more transceivers.
[0132] The communication manager 140 may transmit or may cause the transmission component 904 to transmit capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio. The communication manager 140 may receive, or may cause the reception component 902 to receive, scheduling information that is based at least in part on the capability information. In some aspects, the communication manager 140 may perform one or more operations described elsewhere herein as being performed by one or more components of the communication manager 140.
[0133] The communication manager 140 may include one or more controllers / processors and / or one or more memories of the UE described above in connection with Figure 2. In some aspects, the communication manager 140 includes a set of components, such as a capability component 908. Alternatively, the set of components may be separate and distinct from the communication manager 140. In some aspects, one or more components of the set of components may include or may be implemented within one or more controllers / processors and / or one or more memories of the UE described above in connection with Figure 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
[0134] The transmission component 904 and / or the capability component 908 may transmit capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio. The reception component 902 may receive scheduling information that is based at least in part on the capability information.
[0135] The number and arrangement of components shown in Figure 9 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Figure 9. Furthermore, two or more components shown in Figure 9 may be implemented within a single component, or a single component shown in Figure 9 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Figure 9 may perform one or more functions described as being performed by another set of components shown in Figure 9.
[0136] Figure 10 is a diagram of an example apparatus 1000 for wireless communication that supports low-power wake-up signal monitoring. The apparatus 1000 may be a network node, or a network node may include the apparatus 1000. In some aspects, the apparatus 1000 includes a reception component 1002, a transmission component 1004, and a communication manager 150, which may be in communication with one another (for example, via one or more buses) . As shown, the apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a network node, or another wireless communication device) using the reception component 1002 and the transmission component 1004.
[0137] In some aspects, the apparatus 1000 may be configured to and / or operable to perform one or more operations described herein in connection with Figures 3-6. Additionally or alternatively, the apparatus 1000 may be configured to and / or operable to perform one or more processes described herein, such as process 800 of Figure 8. In some aspects, the apparatus 1000 may include one or more components of the network node described above in connection with Figure 2.
[0138] The reception component 1002 may receive communications, such as reference signals, control information, and / or data communications, from the apparatus 1006. The reception component 1002 may provide received communications to one or more other components of the apparatus 1000, such as the communication manager 150. In some aspects, the reception component 1002 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components. In some aspects, the reception component 1002 may include one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receive processors, one or more controllers / processors, and / or one or more memories of the network node described above in connection with Figure 2.
[0139] The transmission component 1004 may transmit communications, such as reference signals, control information, and / or data communications, to the apparatus 1006. In some aspects, the communication manager 150 may generate communications and may transmit the generated communications to the transmission component 1004 for transmission to the apparatus 1006. In some aspects, the transmission component 1004 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1006. In some aspects, the transmission component 1004 may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, and / or one or more memories of the network node described above in connection with Figure 2. In some aspects, the transmission component 1004 may be co-located with the reception component 1002 in one or more transceivers.
[0140] The communication manager 150 may receive, or may cause the reception component 1002 to receive, capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio. The communication manager 150 may transmit, or may cause the transmission component 1004 to transmit, scheduling information that is based at least in part on the capability information. In some aspects, the communication manager 150 may perform one or more operations described elsewhere herein as being performed by one or more components of the communication manager 150.
[0141] The communication manager 150 may include one or more controllers / processors, one or more memories, one or more schedulers, and / or one or more communication units of the network node described above in connection with Figure 2. In some aspects, the communication manager 150 includes a set of components, such as a scheduling component 1008. Alternatively, the set of components may be separate and distinct from the communication manager 150. In some aspects, one or more components of the set of components may include or may be implemented within one or more controllers / processors, one or more memories, one or more schedulers, and / or one or more communication units of the network node described above in connection with Figure 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
[0142] The reception component 1002 may receive capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio. The transmission component 1004 and / or the scheduling component 1008 may transmit scheduling information that is based at least in part on the capability information.
[0143] The number and arrangement of components shown in Figure 10 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Figure 10. Furthermore, two or more components shown in Figure 10 may be implemented within a single component, or a single component shown in Figure 10 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Figure 10 may perform one or more functions described as being performed by another set of components shown in Figure 10.
[0144] The following provides an overview of some Aspects of the present disclosure:
[0145] Aspect 1: A method of wireless communication performed at a user equipment (UE) , comprising: transmitting capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and receiving scheduling information that is based at least in part on the capability information.
[0146] Aspect 2: The method of Aspect 1, wherein transmitting the capability information comprises transmitting a capability signal report that includes the capability information.
[0147] Aspect 3: The method of any of Aspects 1-2, wherein transmitting the capability information comprises transmitting capability information associated with a time-division duplexing operation and transmitting other capability information associated with a frequency-division duplexing operation.
[0148] Aspect 4: The method of any of Aspects 1-3, wherein the one or more modes include a first mode, a second mode, a third mode, and a fourth mode, wherein: the main radio, when operating in the first mode, is not to be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the second mode, is not to be used for reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the third mode, is not to be used for transmission operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; and the main radio, when operating in the fourth mode, can be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring.
[0149] Aspect 5: The method of Aspect 4, wherein the capability information indicates that the UE supports the third mode for a half-duplex operation using frequency-division duplexing or time-division duplexing carrier aggregation, wherein a low-power wake-up signal and a low-power synchronization signal are higher-layer configured for downlink reception.
[0150] Aspect 6: The method of Aspect 5, wherein a switching gap for a physical random access channel transmission or a Message A transmission is to be used for a switching time between the low-power wake-up receiver and an uplink transmission by the main radio.
[0151] Aspect 7: The method of Aspect 6, wherein the UE is configured to receive the low-power wake-up signal and the low-power synchronization signal in accordance with one or more rules.
[0152] Aspect 8: The method of Aspect 7, wherein the one or more rules include a rule indicating that the UE is to receive the low-power wake-up signal or the low-power synchronization signal in accordance with: the UE being configured to receive the low-power wake-up signal or the low-power synchronization signal in a set of symbols, and the UE not detecting a downlink control information format that indicates for the UE to transmit a physical uplink shared channel communication, a physical uplink control channel communication, a physical random access channel communication, or a sounding reference signal in at least one symbol of the set of symbols.
[0153] Aspect 9: The method of Aspect 8, wherein the rule further indicates that the UE is not to receive the low-power wake-up signal or the low-power synchronization signal in accordance with the UE not receiving the low-power wake-up signal or the low-power synchronization signal in the set of symbols.
[0154] Aspect 10: The method of Aspect 7, wherein the one or more rules include a rule indicating that the UE is not to receive both a dedicated higher-layer parameter configuring reception in a set of symbols and one of the low-power wake-up signal or the low-power synchronization signal in the set of symbols.
[0155] Aspect 11: The method of Aspect 7, wherein the one or more rules include a rule indicating that the UE is to select whether to transmit a physical random access channel transmission or a Message A physical uplink control channel transmission or to receive the low-power wake-up signal or the low-power synchronization signal in accordance with: the UE receiving the low-power wake-up signal or the low-power synchronization signal in a set of symbols, and the UE being configured to transmit the physical random access channel transmission or the Message A physical uplink control channel transmission in accordance with a trigger by a higher-layer starting at a symbol that is earlier than a transition time between the low-power wake-up receiver and the main radio or at a symbol that is later than a transmission time between the main radio and the low-power wake-up receiver.
[0156] Aspect 12: The method of Aspect 5, wherein the UE is configured with a plurality of serving cells and is provided with a directional collision handling enabled indication for a set of serving cells of the plurality of serving cells, wherein the UE indicates support for a half-duplex time-division duplexing carrier aggregation for same sub-carrier spacing capability indicator, and wherein the UE is not configured to monitor a physical downlink control channel for detection of a downlink control information format 2_0 on any serving cell of the plurality of serving cells; and wherein the UE is configured to identify a reference cell for a symbol as an active cell with a smallest cell index among the plurality of serving cells in accordance with the UE not being capable of simultaneous transmission and reception as indicated by a simultaneous transmission and reception inter-band carrier aggregation indicator for the plurality of serving cells and among the cells of each band in accordance with the UE being capable of simultaneous transmission and reception as indicated by the simultaneous transmission and reception inter-band carrier aggregation indicator for the plurality of serving cells.
[0157] Aspect 13: The method of Aspect 12, wherein the symbol is configured as downlink in accordance with the symbol being flexible and in accordance with the UE being configured to receive a low-power wake-up signal or a low-power synchronization signal on the symbol.
[0158] Aspect 14: The method of Aspect 12, wherein, in accordance with another cell of the plurality of serving cells being configured with the directional collision handling enabled indication and operating in a same frequency band as the reference cell, the UE is not to receive configuration information from a higher-layer for receiving a low-power wake-up signal or a low-power synchronization signal on the reference cell or to detect a downlink control information format scheduling a transmission on a symbol for the other cell.
[0159] Aspect 15: The method of Aspect 12, wherein, in accordance with the reference cell and another cell of the plurality of serving cells being configured with the directional collision handling enabled indication and operating in different frequency bands: the UE is to assume the symbol is a flexible symbol, is not to receive a higher-layer configured low-power wake-up signal or low-power synchronization signal, and is not to transmit a higher-layer configured sounding reference signal, physical uplink control channel communication, physical uplink shared channel transmission, or physical random access channel communication in accordance with a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator indicating the symbol as downlink or uplink for the other cell and as uplink or downlink for the reference cell, respectively.
[0160] Aspect 16: The method of Aspect 12, wherein, in accordance with the reference cell and another cell of the plurality of serving cells being configured with the directional collision handling enabled indication and operating in different frequency bands: the UE is not to receive a low-power wake-up signal or low-power synchronization signal on a flexible symbol on the reference cell in a set of symbols in accordance with the UE detecting a downlink control information format scheduling a transmission in one or more symbols of the set of symbols for the other cell.
[0161] Aspect 17: The method of Aspect 12, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein: the UE is not to transmit a physical uplink control channel communication, a physical uplink shared channel communication, or a physical random access channel communication that is configured by a higher layer on a set of symbols on another cell in accordance with at least one symbol of the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or being a symbol corresponding to a low-power wake-up signal or low-power synchronization signal reception that is configured by the higher-layer on the reference cell.
[0162] Aspect 18: The method of Aspect 12, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein: the UE is not to transmit a sounding reference signal that is configured by the higher-layer on the set of symbols on the other cell in accordance with the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or in accordance with the set of symbols corresponding to a low-power wake-up signal or low-power synchronization signal reception that is configured by the higher-layer on the reference cell.
[0163] Aspect 19: The method of Aspect 12, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein: the UE is not to receive a low-power wake-up signal or a low-power synchronization signal that is configured by the higher-layer on the set of symbols on the other cell in accordance with at least one symbol of the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or in accordance with the at least one symbol corresponding to a sounding reference signal, physical uplink control channel, physical uplink shared channel, or physical random access channel reception that is configured by the higher-layer on the reference cell.
[0164] Aspect 20: The method of Aspect 12, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein: the UE is to identify a symbol indicated as uplink or downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator on the other cell to be flexible in accordance with the UE being configured by the higher-layer to transmit a sounding reference signal, physical uplink control channel communication, physical uplink shared channel communication, or physician random access channel communication or to receive the low-power wake-up signal or the low-power synchronization signal on the reference cell.
[0165] Aspect 21: The method of any of Aspects 1-20, wherein, in accordance with the main radio being off and the low-power wake-up receiver being on to monitor for a low-power wake-up signal or a low-power synchronization signal, a transition time between the main radio and the low-power wake-up receiver is to be used for one or more other transmissions that overlap with receptions by the low-power wake-up receiver and the low-power synchronization signal.
[0166] Aspect 22: The method of Aspect 21, wherein, in accordance with the UE not performing an uplink transmission in a symbol where the UE receives the low-power wake-up signal or the low-power synchronization signal, the UE is configured not perform an uplink transmission during a transition between the main radio and the low-power wake-up receiver or during a transition between the low-power wake-up receiver and the main radio.
[0167] Aspect 23: The method of Aspect 21, wherein, in accordance with the UE not monitoring for the low-power wake-up signal or the low-power synchronization signal in a symbol where the UE receives the low-power wake-up signal or the low-power synchronization signal, the UE is configured not to monitor for the low-power wake-up signal or the low-power synchronization signal during a transition between the main radio and the low-power wake-up receiver or during a transition between the low-power wake-up receiver and the main radio.
[0168] Aspect 24: A method of wireless communication performed at a network node, comprising: receiving capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a user equipment (UE) , wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and transmitting scheduling information that is based at least in part on the capability information.
[0169] Aspect 25: The method of Aspect 24, wherein receiving the capability information comprises receiving a capability signal report that includes the capability information.
[0170] Aspect 26: The method of any of Aspects 24-25, wherein receiving the capability information comprises receiving capability information associated with a time-division duplexing operation and receiving other capability information associated with a frequency-division duplexing operation.
[0171] Aspect 27: The method of any of Aspects 24-26, wherein the one or more modes include a first mode, a second mode, a third mode, and a fourth mode, wherein: the main radio, when operating in the first mode, is not to be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the second mode, is not to be used for reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the third mode, is not to be used for transmission operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; and the main radio can be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring.
[0172] Aspect 28: The method of Aspect 27, wherein the capability information indicates that the UE supports the third mode for a half-duplex operation using frequency-division duplexing or time-division duplexing carrier aggregation, wherein a low-power wake-up signal and a low-power synchronization signal are higher-layer configured for downlink reception by the UE.
[0173] Aspect 29: The method of Aspect 25, wherein a switching gap for a physical random access channel transmission or a Message A transmission is to be used for a switching time between the low-power wake-up receiver and an uplink transmission by the main radio.
[0174] Aspect 30: The method of any of Aspects 24-29, wherein, in accordance with the main radio being off and the low-power wake-up receiver being on to monitor for a low-power wake-up signal or a low-power synchronization signal, a transition time between the main radio and the low-power wake-up receiver is to be used for one or more other transmissions that overlap with receptions by the low-power wake-up receiver and the low-power synchronization signal.
[0175] Aspect 31: A apparatus for wireless communication at a user equipment (UE) , comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories, at least one processor of the one or more processors configured to cause the UE to: transmit capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and receive scheduling information that is based at least in part on the capability information.
[0176] Aspect 32: The apparatus of Aspect 31, wherein at least one processor of the one or more processors, to cause the UE to transmit the capability information, is configured to cause the UE to transmit a capability signal report that includes the capability information.
[0177] Aspect 33: The apparatus of any of Aspects 31-32, wherein at least one processor of the one or more processors, to cause the UE to transmit the capability information, is configured to cause the UE to transmit capability information associated with a time-division duplexing operation and transmitting other capability information associated with a frequency-division duplexing operation.
[0178] Aspect 34: The apparatus of any of Aspects 31-33, wherein the one or more modes include a first mode, a second mode, a third mode, and a fourth mode, wherein: the main radio, when operating in the first mode, is not to be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the second mode, is not to be used for reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the third mode, is not to be used for transmission operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; and the main radio, when operating in the fourth mode, can be used for transmission or reception operations in accordance with the low- power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring.
[0179] Aspect 35: The apparatus of Aspect 34, wherein the capability information indicates that the UE supports the third mode for a half-duplex operation using frequency-division duplexing or time-division duplexing carrier aggregation, wherein a low-power wake-up signal and a low-power synchronization signal are higher-layer configured for downlink reception.
[0180] Aspect 36: The apparatus of Aspect 35, wherein a switching gap for a physical random access channel transmission or a Message A transmission is to be used for a switching time between the low-power wake-up receiver and an uplink transmission by the main radio.
[0181] Aspect 37: The apparatus of Aspect 36, wherein at least one processor of the one or more processors is configured to cause the UE to receive the low-power wake-up signal and the low-power synchronization signal in accordance with one or more rules.
[0182] Aspect 38: The apparatus of Aspect 37, wherein the one or more rules include a rule indicating that the UE is to receive the low-power wake-up signal or the low-power synchronization signal in accordance with: the UE being configured to receive the low-power wake-up signal or the low-power synchronization signal in a set of symbols, and the UE not detecting a downlink control information format that indicates for the UE to transmit a physical uplink shared channel communication, a physical uplink control channel communication, a physical random access channel communication, or a sounding reference signal in at least one symbol of the set of symbols.
[0183] Aspect 39: The apparatus of Aspect 38, wherein the rule further indicates that the UE is not to receive the low-power wake-up signal or the low-power synchronization signal in accordance with the UE not receiving the low-power wake-up signal or the low-power synchronization signal in the set of symbols.
[0184] Aspect 40: The apparatus of Aspect 37, wherein the one or more rules include a rule indicating that the UE is not to receive both a dedicated higher-layer parameter configuring reception in a set of symbols and one of the low-power wake-up signal or the low-power synchronization signal in the set of symbols.
[0185] Aspect 41: The apparatus of Aspect 37, wherein the one or more rules include a rule indicating that the UE is to select whether to transmit a physical random access channel transmission or a Message A physical uplink control channel transmission or to receive the low-power wake-up signal or the low-power synchronization signal in accordance with: the UE receiving the low-power wake-up signal or the low-power synchronization signal in a set of symbols, and the UE being configured to transmit the physical random access channel transmission or the Message A physical uplink control channel transmission in accordance with a trigger by a higher-layer starting at a symbol that is earlier than a transition time between the low-power wake-up receiver and the main radio or at a symbol that is later than a transmission time between the main radio and the low-power wake-up receiver.
[0186] Aspect 42: The apparatus of Aspect 35, wherein the UE is configured with a plurality of serving cells and is provided with a directional collision handling enabled indication for a set of serving cells of the plurality of serving cells, wherein the UE indicates support for a half-duplex time-division duplexing carrier aggregation for same sub-carrier spacing capability indicator, and wherein the UE is not configured to monitor a physical downlink control channel for detection of a downlink control information format 2_0 on any serving cell of the plurality of serving cells; and wherein at least one processor of the one or more processors is configured to cause the UE to identify a reference cell for a symbol as an active cell with a smallest cell index among the plurality of serving cells in accordance with the UE not being capable of simultaneous transmission and reception as indicated by a simultaneous transmission and reception inter-band carrier aggregation indicator for the plurality of serving cells and among the cells of each band in accordance with the UE being capable of simultaneous transmission and reception as indicated by the simultaneous transmission and reception inter-band carrier aggregation indicator for the plurality of serving cells.
[0187] Aspect 43: The apparatus of Aspect 42, wherein the symbol is configured as downlink in accordance with the symbol being flexible and in accordance with the UE being configured to receive a low-power wake-up signal or a low-power synchronization signal on the symbol.
[0188] Aspect 44: The apparatus of Aspect 42, wherein, in accordance with another cell of the plurality of serving cells being configured with the directional collision handling enabled indication and operating in a same frequency band as the reference cell, the UE is not to receive configuration information from a higher-layer for receiving a low-power wake-up signal or a low-power synchronization signal on the reference cell or to detect a downlink control information format scheduling a transmission on a symbol for the other cell.
[0189] Aspect 45: The apparatus of Aspect 42, wherein, in accordance with the reference cell and another cell of the plurality of serving cells being configured with the directional collision handling enabled indication and operating in different frequency bands: the UE is to assume the symbol is a flexible symbol, is not to receive a higher-layer configured low-power wake-up signal or low-power synchronization signal, and is not to transmit a higher-layer configured sounding reference signal, physical uplink control channel communication, physical uplink shared channel transmission, or physical random access channel communication in accordance with a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator indicating the symbol as downlink or uplink for the other cell and as uplink or downlink for the reference cell, respectively.
[0190] Aspect 46: The apparatus of Aspect 42, wherein, in accordance with the reference cell and another cell of the plurality of serving cells being configured with the directional collision handling enabled indication and operating in different frequency bands: the UE is not to receive a low-power wake-up signal or low-power synchronization signal on a flexible symbol on the reference cell in a set of symbols in accordance with the UE detecting a downlink control information format scheduling a transmission in one or more symbols of the set of symbols for the other cell.
[0191] Aspect 47: The apparatus of Aspect 42, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein: the UE is not to transmit a physical uplink control channel communication, a physical uplink shared channel communication, or a physical random access channel communication that is configured by a higher layer on a set of symbols on another cell in accordance with at least one symbol of the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or being a symbol corresponding to a low-power wake-up signal or low-power synchronization signal reception that is configured by the higher-layer on the reference cell.
[0192] Aspect 48: The apparatus of Aspect 42, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein: the UE is not to transmit a sounding reference signal that is configured by the higher-layer on the set of symbols on the other cell in accordance with the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or in accordance with the set of symbols corresponding to a low-power wake-up signal or low-power synchronization signal reception that is configured by the higher-layer on the reference cell.
[0193] Aspect 49: The apparatus of Aspect 42, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein: the UE is not to receive a low-power wake-up signal or a low-power synchronization signal that is configured by the higher-layer on the set of symbols on the other cell in accordance with at least one symbol of the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or in accordance with the at least one symbol corresponding to a sounding reference signal, physical uplink control channel, physical uplink shared channel, or physical random access channel reception that is configured by the higher-layer on the reference cell.
[0194] Aspect 50: The apparatus of Aspect 42, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein: the UE is to identify a symbol indicated as uplink or downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator on the other cell to be flexible in accordance with the UE being configured by the higher-layer to transmit a sounding reference signal, physical uplink control channel communication, physical uplink shared channel communication, or physician random access channel communication or to receive the low-power wake-up signal or the low-power synchronization signal on the reference cell.
[0195] Aspect 51: The apparatus of any of Aspects 31-50, wherein, in accordance with the main radio being off and the low-power wake-up receiver being on to monitor for a low-power wake-up signal or a low-power synchronization signal, a transition time between the main radio and the low-power wake-up receiver is to be used for one or more other transmissions that overlap with receptions by the low-power wake-up receiver and the low-power synchronization signal.
[0196] Aspect 52: The apparatus of Aspect 51, wherein, in accordance with the UE not performing an uplink transmission in a symbol where the UE receives the low-power wake-up signal or the low-power synchronization signal, the UE is configured not perform an uplink transmission during a transition between the main radio and the low-power wake-up receiver or during a transition between the low-power wake-up receiver and the main radio.
[0197] Aspect 53: The apparatus of Aspect 51, wherein, in accordance with the UE not monitoring for the low-power wake-up signal or the low-power synchronization signal in a symbol where the UE receives the low-power wake-up signal or the low-power synchronization signal, the UE is configured not to monitor for the low-power wake-up signal or the low-power synchronization signal during a transition between the main radio and the low-power wake-up receiver or during a transition between the low-power wake-up receiver and the main radio.
[0198] Aspect 54: A apparatus for wireless communication at a network node, comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories, at least one processor of the one or more processors configured to cause the network node to: receive capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a user equipment (UE) , wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; and transmit scheduling information that is based at least in part on the capability information.
[0199] Aspect 55: The apparatus of Aspect 54, wherein at least one processor of the one or more processors, to cause the network node to receive the capability information, is configured to cause the network node to receive a capability signal report that includes the capability information.
[0200] Aspect 56: The apparatus of any of Aspects 54-55, wherein at least one processor of the one or more processors, to cause the network node to receive the capability information, is configured to cause the network node to receive capability information associated with a time-division duplexing operation and receiving other capability information associated with a frequency-division duplexing operation.
[0201] Aspect 57: The apparatus of any of Aspects 54-56, wherein the one or more modes include a first mode, a second mode, a third mode, and a fourth mode, wherein: the main radio, when operating in the first mode, is not to be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the second mode, is not to be used for reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; the main radio, when operating in the third mode, is not to be used for transmission operations in accordance with the low- power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; and the main radio can be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring.
[0202] Aspect 58: The apparatus of Aspect 57, wherein the capability information indicates that the UE supports the third mode for a half-duplex operation using frequency-division duplexing or time-division duplexing carrier aggregation, wherein a low-power wake-up signal and a low-power synchronization signal are higher-layer configured for downlink reception by the UE.
[0203] Aspect 59: The apparatus of Aspect 55, wherein a switching gap for a physical random access channel transmission or a Message A transmission is to be used for a switching time between the low-power wake-up receiver and an uplink transmission by the main radio.
[0204] Aspect 60: The apparatus of any of Aspects 54-59, wherein, in accordance with the main radio being off and the low-power wake-up receiver being on to monitor for a low-power wake-up signal or a low-power synchronization signal, a transition time between the main radio and the low-power wake-up receiver is to be used for one or more other transmissions that overlap with receptions by the low-power wake-up receiver and the low-power synchronization signal.
[0205] Aspect 61: An apparatus for wireless communication at a device, the apparatus comprising one or more processors; one or more memories coupled with the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method of one or more of Aspects 1-30.
[0206] Aspect 62: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors configured to cause the device to perform the method of one or more of Aspects 1-30.
[0207] Aspect 63: An apparatus for wireless communication, the apparatus comprising at least one means for performing the method of one or more of Aspects 1-30.
[0208] Aspect 64: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to perform the method of one or more of Aspects 1-30.
[0209] Aspect 65: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 1-30.
[0210] Aspect 66: A device for wireless communication, the device comprising a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the device to perform the method of one or more of Aspects 1-30.
[0211] Aspect 67: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to cause the device to perform the method of one or more of Aspects 1-30.
[0212] The foregoing disclosure provides illustration and description but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.
[0213] As used herein, the term “component” is intended to be broadly construed as hardware or a combination of hardware and at least one of software or firmware. “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a “processor” is implemented in hardware or a combination of hardware and software. It will be apparent that systems or methods described herein may be implemented in different forms of hardware or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems or methods is not limiting of the aspects. Thus, the operation and behavior of the systems or methods are described herein without reference to specific software code, because those skilled in the art will understand that software and hardware can be designed to implement the systems or methods based, at least in part, on the description herein. A component being configured to perform a function means that the component has a capability to perform the function, and does not require the function to be actually performed by the component, unless noted otherwise.
[0214] As used herein, “satisfying a threshold” may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, or not equal to the threshold, among other examples.
[0215] As used herein, the term “determine” or “determining” encompasses a wide variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database or another data structure) , identifying, inferring, ascertaining, measuring, and the like. Also, “determining” can include receiving (such as receiving information or receiving an indication) , accessing (such as accessing data stored in memory) , transmitting (such as transmitting information) and the like. Also, “determining” can include resolving, selecting, obtaining, choosing, establishing and other such similar actions. The term “identify” or “identifying” also encompasses a wide variety of actions and, therefore, “identifying” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database or another data structure) , inferring, ascertaining, measuring, and the like. Also, “identifying” can include receiving (such as receiving information or receiving an indication) , accessing (such as accessing data stored in memory) , transmitting (such as transmitting information) and the like. Also, “identifying” can include resolving, selecting, obtaining, choosing, establishing and other such similar actions.
[0216] 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 (for example, 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) .
[0217] No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more. ” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more. ” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more. ” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has, ” “have, ” “having, ” and similar terms are intended to be open-ended terms that do not limit an element that they modify (for example, an element “having” A may also have B) . Further, as used herein, “based on” is intended to be interpreted in the inclusive sense, unless otherwise explicitly indicated. For example, “based on” may be used interchangeably with “based at least in part on, ” “associated with” , or “in accordance with” unless otherwise explicitly indicated. Specifically, unless a phrase refers to “based on only ‘a, ’ ” or the equivalent in context, whatever it is that is “based on ‘a, ’ ” or “based at least in part on ‘a, ’ ” may be based on “a” alone or based on a combination of “a” and one or more other factors, conditions or information. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or, ” unless explicitly stated otherwise (for example, if used in combination with “either” or “only one of” ) . It should be understood that “one or more” is equivalent to “at least one. ”
[0218] Even though particular combinations of features are recited in the claims or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically recited in the claims or disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set.
Claims
1.An apparatus for wireless communication at a user equipment (UE) , comprising:one or more memories storing processor-executable code; andone or more processors coupled with the one or more memories, at least one processor of the one or more processors configured to cause the UE to:transmit capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; andreceive scheduling information that is based at least in part on the capability information.2.The apparatus of claim 1, wherein at least one processor of the one or more processors, to cause the UE to transmit the capability information, is configured to cause the UE to transmit capability information associated with a time-division duplexing operation and to transmit other capability information associated with a frequency-division duplexing operation.3.The apparatus of claim 1, wherein the one or more modes include a first mode, a second mode, a third mode, and a fourth mode, wherein:the main radio, when operating in the first mode, is not to be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring;the main radio, when operating in the second mode, is not to be used for reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring;the main radio, when operating in the third mode, is not to be used for transmission operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; andthe main radio, when operating in the fourth mode, can be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring.4.The apparatus of claim 3, wherein the capability information indicates that the UE supports the third mode for a half-duplex operation using frequency-division duplexing or time-division duplexing carrier aggregation, wherein a low-power wake-up signal and a low-power synchronization signal are higher-layer configured for downlink reception.5.The apparatus of claim 4, wherein a switching gap for a physical random access channel transmission or a Message A transmission is to be used for a switching time between the low-power wake-up receiver and an uplink transmission by the main radio.6.The apparatus of claim 5, wherein at least one processor of the one or more processors is configured to cause the UE to receive the low-power wake-up signal and the low-power synchronization signal in accordance with one or more rules.7.The apparatus of claim 6, wherein the one or more rules include a rule indicating that the UE is to receive the low-power wake-up signal or the low-power synchronization signal in accordance with:the UE being configured to receive the low-power wake-up signal or the low-power synchronization signal in a set of symbols, andthe UE not detecting a downlink control information format that indicates for the UE to transmit a physical uplink shared channel communication, a physical uplink control channel communication, a physical random access channel communication, or a sounding reference signal in at least one symbol of the set of symbols.8.The apparatus of claim 7, wherein the rule further indicates that the UE is not to receive the low-power wake-up signal or the low-power synchronization signal in accordance with the UE not receiving the low-power wake-up signal or the low-power synchronization signal in the set of symbols.9.The apparatus of claim 6, wherein the one or more rules include a rule indicating that the UE is not to receive both a dedicated higher-layer parameter configuring reception in a set of symbols and one of the low-power wake-up signal or the low-power synchronization signal in the set of symbols.10.The apparatus of claim 6, wherein the one or more rules include a rule indicating that the UE is to select whether to transmit a physical random access channel transmission or a Message A physical uplink control channel transmission or to receive the low-power wake-up signal or the low-power synchronization signal in accordance with:the UE receiving the low-power wake-up signal or the low-power synchronization signal in a set of symbols, andthe UE being configured to transmit the physical random access channel transmission or the Message A physical uplink control channel transmission in accordance with a trigger by a higher-layer starting at a symbol that is earlier than a transition time between the low-power wake-up receiver and the main radio or at a symbol that is later than a transmission time between the main radio and the low-power wake-up receiver.11.The apparatus of claim 4, wherein the UE is configured with a plurality of serving cells and is provided with a directional collision handling enabled indication for a set of serving cells of the plurality of serving cells, wherein the UE indicates support for a half-duplex time-division duplexing carrier aggregation for same sub-carrier spacing capability indicator, and wherein the UE is not configured to monitor a physical downlink control channel for detection of a downlink control information format 2_0 on any serving cell of the plurality of serving cells; andwherein at least one processor of the one or more processors is configured to cause the UE to identify a reference cell for a symbol as an active cell with a smallest cell index among the plurality of serving cells in accordance with the UE not being capable of simultaneous transmission and reception as indicated by a simultaneous transmission and reception inter-band carrier aggregation indicator for the plurality of serving cells and among the cells of each band in accordance with the UE being capable of simultaneous transmission and reception as indicated by the simultaneous transmission and reception inter-band carrier aggregation indicator for the plurality of serving cells.12.The apparatus of claim 11, wherein the symbol is configured as downlink in accordance with the symbol being flexible and in accordance with the UE being configured to receive a low-power wake-up signal or a low-power synchronization signal on the symbol.13.The apparatus of claim 11, wherein, in accordance with another cell of the plurality of serving cells being configured with the directional collision handling enabled indication and operating in a same frequency band as the reference cell, the UE is not to receive configuration information from a higher-layer for receiving a low-power wake-up signal or a low-power synchronization signal on the reference cell or to detect a downlink control information format scheduling a transmission on a symbol for the other cell.14.The apparatus of claim 11, wherein, in accordance with the reference cell and another cell of the plurality of serving cells being configured with the directional collision handling enabled indication and operating in different frequency bands:the UE is to assume the symbol is a flexible symbol, is not to receive a higher-layer configured low-power wake-up signal or low-power synchronization signal, and is not to transmit a higher-layer configured sounding reference signal, physical uplink control channel communication, physical uplink shared channel transmission, or physical random access channel communication in accordance with a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator indicating the symbol as downlink or uplink for the other cell and as uplink or downlink for the reference cell, respectively.15.The apparatus of claim 11, wherein, in accordance with the reference cell and another cell of the plurality of serving cells being configured with the directional collision handling enabled indication and operating in different frequency bands:the UE is not to receive a low-power wake-up signal or low-power synchronization signal on a flexible symbol on the reference cell in a set of symbols in accordance with the UE detecting a downlink control information format scheduling a transmission in one or more symbols of the set of symbols for the other cell.16.The apparatus of claim 11, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein:the UE is not to transmit a physical uplink control channel communication, a physical uplink shared channel communication, or a physical random access channel communication that is configured by a higher layer on a set of symbols on another cell in accordance with at least one symbol of the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or being a symbol corresponding to a low-power wake-up signal or low-power synchronization signal reception that is configured by the higher-layer on the reference cell.17.The apparatus of claim 11, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein:the UE is not to transmit a sounding reference signal that is configured by the higher-layer on the set of symbols on the other cell in accordance with the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or in accordance with the set of symbols corresponding to a low-power wake-up signal or low-power synchronization signal reception that is configured by the higher-layer on the reference cell.18.The apparatus of claim 11, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein:the UE is not to receive a low-power wake-up signal or a low-power synchronization signal that is configured by the higher-layer on the set of symbols on the other cell in accordance with at least one symbol of the set of symbols being indicated as downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator or in accordance with the at least one symbol corresponding to a sounding reference signal, physical uplink control channel, physical uplink shared channel, or physical random access channel reception that is configured by the higher-layer on the reference cell.19.The apparatus of claim 11, wherein the reference cell and another cell operate in a same frequency band or in different frequency bands, and wherein:the UE is to identify a symbol indicated as uplink or downlink by a time-division-duplexing-uplink-downlink-configuration-common indicator or a time-division-duplexing-uplink-downlink-configuration-dedicated indicator on the other cell to be flexible in accordance with the UE being configured by the higher-layer to transmit a sounding reference signal, physical uplink control channel communication, physical uplink shared channel communication, or physician random access channel communication or to receive the low-power wake-up signal or the low-power synchronization signal on the reference cell.20.The apparatus of claim 1, wherein, in accordance with the main radio being off and the low-power wake-up receiver being on to monitor for a low-power wake-up signal or a low-power synchronization signal, a transition time between the main radio and the low-power wake-up receiver is to be used for one or more other transmissions that overlap with receptions by the low-power wake-up receiver and the low-power synchronization signal.21.The apparatus of claim 20, wherein, in accordance with the UE not performing an uplink transmission in a symbol where the UE receives the low-power wake-up signal or the low-power synchronization signal, the UE is configured not perform an uplink transmission during a transition between the main radio and the low-power wake-up receiver or during a transition between the low-power wake-up receiver and the main radio.22.The apparatus of claim 20, wherein, in accordance with the UE not monitoring for the low-power wake-up signal or the low-power synchronization signal in a symbol where the UE receives the low-power wake-up signal or the low-power synchronization signal, the UE is configured not to monitor for the low-power wake-up signal or the low-power synchronization signal during a transition between the main radio and the low-power wake-up receiver or during a transition between the low-power wake-up receiver and the main radio.23.An apparatus for wireless communication at a network node, comprising:one or more memories storing processor-executable code; andone or more processors coupled with the one or more memories, at least one processor of the one or more processors configured to cause the network node to:receive capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with a user equipment (UE) , wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; andtransmit scheduling information that is based at least in part on the capability information.24.The apparatus of claim 23, wherein at least one processor of the one or more processors, to cause the network node to receive the capability information, is configured to cause the network node to receive capability information associated with a time-division duplexing operation and to receive other capability information associated with a frequency-division duplexing operation.25.The apparatus of claim 23, wherein the one or more modes include a first mode, a second mode, a third mode, and a fourth mode, wherein:the main radio, when operating in the first mode, is not to be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring;the main radio, when operating in the second mode, is not to be used for reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring;the main radio, when operating in the third mode, is not to be used for transmission operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring; andthe main radio can be used for transmission or reception operations in accordance with the low-power wake-up receiver being on for low-power wake-up signal or low-power synchronization signal monitoring.26.The apparatus of claim 25, wherein the capability information indicates that the UE supports the third mode for a half-duplex operation using frequency-division duplexing or time-division duplexing carrier aggregation, wherein a low-power wake-up signal and a low-power synchronization signal are higher-layer configured for downlink reception by the UE.27.The apparatus of claim 23, wherein, in accordance with the main radio being off and the low-power wake-up receiver being on to monitor for a low-power wake-up signal or a low-power synchronization signal, a transition time between the main radio and the low-power wake-up receiver is to be used for one or more other transmissions that overlap with receptions by the low-power wake-up receiver and the low-power synchronization signal.28.A method of wireless communication performed at a user equipment (UE) , comprising:transmitting capability information that indicates one or more modes supported by a low-power wake-up receiver and a main radio associated with the UE, wherein the one or more modes indicate a transmission capability or a reception capability for at least one of the low-power wake-up receiver or the main radio; andreceiving scheduling information that is based at least in part on the capability information.29.The method of claim 28, wherein transmitting the capability information comprises transmitting capability information associated with a time-division duplexing operation and transmitting other capability information associated with a frequency-division duplexing operation.30.The method of claim 29, wherein the UE is configured to receive a low-power wake-up signal and a low-power synchronization signal in accordance with one or more rules, wherein the one or more rules include a rule indicating that the UE is to receive the low-power wake-up signal or the low-power synchronization signal in accordance with:the UE being configured to receive the low-power wake-up signal or the low-power synchronization signal in a set of symbols, andthe UE not detecting a downlink control information format that indicates for the UE to transmit a physical uplink shared channel communication, a physical uplink control channel communication, a physical random access channel communication, or a sounding reference signal in at least one symbol of the set of symbols.
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