Wake-up signal monitoring

Abstract

The present disclosure relates to a device, a method, an apparatus, and a computer-readable recording medium for monitoring a wake-up signal. A first device determines that a monitoring condition is satisfied based on a setting including at least one of a monitoring start condition and a monitoring stop condition associated with the wake-up signal. The monitoring condition is a monitoring start condition or a monitoring stop condition. The first device performs a monitoring operation corresponding to the satisfied monitoring condition. This allows the first device to avoid delays and power consumption due to unnecessary monitoring of the wake-up signal.

Description

[Technical Field]

[0001] Various exemplary embodiments of the present disclosure relate generally to the field of telecommunications, and more particularly to methods, devices, apparatus, and computer-readable storage media for monitoring wake-up signals. [Background technology]

[0002] Fifth-generation (5G) systems are being designed and developed for both cellular and vertical use cases. In addition to latency, reliability, and availability, user equipment (UE) energy efficiency is also important for 5G. Currently, 5G devices may need to be charged on a weekly or even daily basis, depending on the individual's usage duration. Typically, 5G devices consume tens of milliwatts of power in a radio resource control (RRC) idle / inactive state and hundreds of milliwatts in an RRC connected state. Designs that extend battery life are necessary to improve energy efficiency and enhance the user experience.

[0003] Energy efficiency is even more important for UEs that do not have a persistent power source (e.g., UEs that use small rechargeable AA batteries). In vertical use cases, sensors and actuators are widely deployed for monitoring, measurement, charging, etc. These batteries are generally not rechargeable and are expected to last at least several years. Currently, UEs must periodically wake up during discontinuous reception (DRX) cycles, which account for the majority of power consumption during periods without signaling or data traffic. Power consumption can be significantly reduced if the UE can wake up only when addressed, e.g., by paging. This can be achieved by triggering / awakening the main radio with a wake-up signal and using an independent receiver that can monitor the wake-up signal with ultra-low power consumption. The main radio is responsible for downlink reception, including reception of SSB, system information, paging, data, and control signals, and uplink transmission, including transmission of data and control signals. The main radio is also responsible for cell (re)selection evaluation to ensure the UE is camped on the optimal cell. The main radio can be configured to be off or in a (deep) sleep state unless it is turned on. Summary of the Invention

[0004] In a first aspect of the present disclosure, a first device is provided, the first device including at least one processor and at least one memory, wherein the memory stores instructions that, when executed by the at least one processor, cause the first device to: determine, based on a configuration including at least one of a monitoring start condition or a monitoring stop condition associated with a wake-up signal, that a monitoring condition is satisfied, where the monitoring condition is a monitoring start condition or a monitoring stop condition; and perform a monitoring operation corresponding to the satisfied monitoring condition.

[0005] In a second aspect of the present invention, a second device is provided, the second device comprising at least one processor and at least one memory, the at least one memory storing instructions that, when executed by the at least one processor, cause the second device to at least transmit to the first device a configuration including at least one of a monitoring start condition or a monitoring stop condition associated with a wake-up signal.

[0006] In a third aspect of the present disclosure, a method is provided, the method including: determining, in a first device, based on a setting including at least one of a monitoring start condition or a monitoring stop condition associated with a wake-up signal, that a monitoring condition is satisfied, where the monitoring condition is a monitoring start condition or a monitoring stop condition; and performing a monitoring operation corresponding to the satisfied monitoring condition.

[0007] In a fourth aspect of the present invention, a method is provided, the method including, at a second device, transmitting to a first device a configuration including at least one of a start monitoring condition or a stop monitoring condition associated with a wake-up signal.

[0008] In a fifth aspect of the present invention, there is provided a first device, comprising: means for determining, based on a setting including at least one of a monitoring start condition and a monitoring stop condition associated with a wake-up signal, that a monitoring condition is satisfied; and means for executing a monitoring operation corresponding to the satisfied monitoring condition.

[0009] In a sixth aspect of the present invention, there is provided a second apparatus, the second apparatus comprising: means for transmitting to the first device a configuration including at least one of a monitoring start condition or a monitoring stop condition associated with a wake-up signal.

[0010] In a seventh aspect of the present invention, there is provided a computer readable medium comprising instructions for causing an apparatus to perform at least the method according to the third aspect.

[0011] In an eighth aspect of the present disclosure, there is provided a computer-readable medium storing instructions for causing an apparatus to perform at least the method according to the fourth aspect.

[0012] The Summary is not intended to identify key features or essential features of the embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will be readily apparent from the following description. [Brief explanation of the drawings]

[0013] Exemplary embodiments will now be described with reference to the accompanying drawings. [Figure 1] FIG. 1 illustrates an example of a communications environment in which exemplary embodiments of the present disclosure may be implemented. [Figure 2A] FIG. 2A illustrates an example block diagram of the operation of a first device with a wake-up receiver (WUR) according to some example embodiments of the present disclosure. [Figure 2B] FIG. 2B illustrates an example block diagram of the operation of a first device with a wake-up receiver (WUR) according to some example embodiments of the present disclosure. [Figure 3] FIG. 3 illustrates an example signaling diagram of a wake-up signal monitoring procedure, according to some exemplary embodiments of the present disclosure. [Figure 4] FIG. 4 illustrates a flowchart of a method implemented in a first device according to some exemplary embodiments of the present disclosure. [Figure 5] FIG. 5 illustrates a flowchart of a method implemented in a second device according to some exemplary embodiments of the present disclosure. [Figure 6] FIG. 6 shows a simplified block diagram of an apparatus suitable for implementing exemplary embodiments of the present disclosure. [Figure 7]7 illustrates a block diagram of an exemplary computer-readable medium according to some exemplary embodiments of the present disclosure. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. DETAILED DESCRIPTION OF THE INVENTION

[0014] The principles of the present invention will now be described with reference to several exemplary embodiments. These embodiments are provided for illustrative purposes only, to aid those skilled in the art in understanding and practicing the present invention, and are not intended to limit the scope of the disclosure. The embodiments described herein can be implemented in various ways other than those described below.

[0015] In the following description and claims, unless otherwise defined, all technical and scientific terms used herein have the meaning commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0016] References in this disclosure to "one embodiment," "embodiment," "exemplary embodiment," and the like indicate that the described embodiment includes a particular feature, structure, or characteristic, but do not require that all embodiments include the particular feature, structure, or characteristic. Moreover, such references do not necessarily refer to the same embodiment. Also, when a particular feature, structure, or characteristic is described in connection with an embodiment, it should be understood that it is within the knowledge of one skilled in the art to modify that feature, structure, or characteristic in connection with other embodiments.

[0017] When terms such as "first," "second," and the like are used to describe various elements, these elements are not limited by these terms. These terms are merely used to distinguish one element from another. For example, a first element could be referred to as a second element, and similarly, a second element could be referred to as a first element, without departing from the scope of the exemplary embodiments. As used herein, the term "and / or" includes any and all combinations of one or more of the listed terms.

[0018] As used herein, "at least one of: " and "at least one " and similar expressions, when a list of two or more elements is connected by "and" or "or", mean at least one element, or at least two or more elements, or at least all elements.

[0019] In this specification, unless expressly stated otherwise, performing a step "in accordance with A" does not imply that the step is performed immediately after "A" occurs, but may include one or more intervening steps.

[0020] The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit example embodiments. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly dictates otherwise. Furthermore, as used herein, the terms "comprises," "comprising," "has," "having," "includes," and "including" specify the presence of stated features, elements, and / or components, etc., but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0021] In this application, the term "circuit" means (a) hardware-only circuit implementations (e.g., implementations using only analog and / or digital circuitry); and (b) a combination of hardware circuitry and software, e.g., (where applicable); (i) a combination of analog and / or digital hardware circuitry and software / firmware; and (ii) any portion of software (including digital signal processors), hardware processors with software and memory that work together to cause a device, such as a mobile phone or a server, to perform various functions; and (c) A hardware circuit or processor (e.g., a microprocessor or part of a microprocessor) that requires software (e.g., firmware) to operate without the need for software, including the absence of such software; It may refer to one or more, or all, of the following:

[0022] This definition of circuit applies to all uses of the term in this application, including the claims. As a further example, the term circuit as used herein also covers a simple hardware circuit or processor (or processors) or portion of a hardware circuit or processor, along with any accompanying software and / or firmware implementations. For example, the term circuit, when applied to certain elements of the claims, also covers baseband or processor integrated circuits for mobile devices, or similar integrated circuits onboard servers, cellular network devices, and other computing or network devices.

[0023] As used herein, a "communication network" refers to a network conforming to an appropriate communication standard, such as 6G, New Radio (NR), Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), or Narrowband Internet of Things (NB-IoT). Furthermore, communications between terminal devices and network devices within the communication network may be based on, but not limited to, first-generation (1G), second-generation (2G), 2.5G, 2.75G, third-generation (3G), fourth-generation (4G), 4.5G, fifth-generation (5G) communication protocols, and / or other protocols now known or developed in the future. Embodiments of the present disclosure are applicable to various communication systems. Naturally, with the rapid development of communication technologies, future communication technologies and systems embodying the present disclosure will also emerge. Therefore, the scope of the present disclosure is not limited to the above-mentioned systems.

[0024] As used herein, the term "network device" refers to a node in a communication network through which a terminal device accesses the network and receives services therefrom. The term "network device" refers to a base station (BS) or access point (AP), such as a Node B (Node B or NB), evolved Node B (eNodeB or NB), NR NB (also referred to as gNB), remote radio unit (RRU), radio header (RH), remote radio head (RRH), relay, integrated access and backhaul (IAB) node, low-power node such as femto or pico, non-terrestrial network (NTN) or non-terrestrial network device (e.g., satellite network device, low earth orbit (LEO) satellite, geostationary earth orbit (GEO) satellite), airborne network device, etc., depending on the terminology and technology applied. In some exemplary embodiments, a radio access network (RAN) split architecture includes a centralized unit (CU) and a distributed unit (DU) in an IAB donor node. An IAB node includes a mobile terminal (IAB-MT) portion that acts like a UE to a parent node, and a DU portion of the IAB node that acts like a base station to a next-hop IAB node.

[0025] "Terminal" refers to any terminal capable of wireless communication. By way of example, a terminal may also be referred to as a communication device, user equipment (UE), subscriber station (SS), mobile subscriber station, mobile station (MS), or access terminal (AT). Terminal equipment includes mobile phones, cellular phones, smartphones, VoIP phones, wireless local loop phones, tablets, wearable terminals, PDAs, portable computers, desktop computers, image capture terminals such as digital cameras, gaming terminals, music storage and playback devices, in-vehicle wireless terminals, wireless endpoints, mobile stations, laptop embedded devices (LEEs), laptop mounted devices (LMEs), USB dongles, smart devices, wireless customer premise equipment (CPEs), Internet of Things (IoT) devices, watches or other wearables, head-mounted displays (HMDs), vehicles, drones, medical devices and applications (e.g., remote surgery), industrial devices and applications (e.g., robots and / or other wireless devices operating in the context of industrial and / or automated processing chains), consumer electronics devices, devices operating on commercial and / or industrial wireless networks, and the like. Terminal equipment can also correspond to the mobile terminal (MT) portion of an IAB node (e.g., a relay node). In the following description, the terms "terminal equipment," "communications equipment," "terminal," "user equipment," and "UE" may be used interchangeably.

[0026] As used herein, "resources," "transmission resources," "resource blocks," "physical resource blocks" (PRBs), "uplink resources," or "downlink resources" may refer to any resources, such as time domain resources, frequency domain resources, spatial domain resources, code domain resources, or other communication-enabling resources, for communication between a terminal device and a network device. Hereinafter, unless explicitly stated, both frequency domain and time domain resources are used as examples of transmission resources to describe some exemplary embodiments of the present disclosure. It should be noted that the exemplary embodiments of the present disclosure are equally applicable to other resources in other domains.

[0027] As mentioned above, energy efficiency is crucial for UEs that cannot be continuously powered by a single rechargeable coin cell battery. In vertical use cases, sensors and actuators are widely deployed for monitoring, measurement, charging, etc. These batteries are generally not rechargeable and are expected to last at least several years. Wearable devices include smartwatches, rings, e-health devices, medical monitoring devices, etc. Typical battery capacities make it difficult to achieve the required 1-2 weeks of battery life.

[0028] Power consumption depends on the length of the configured wake-up period, such as the paging cycle during idle / inactivity and the DRX cycle during connection. While a large eDRX cycle is expected to be used to meet the battery life requirements mentioned above, this results in high latency, making it unsuitable for services that require both long battery life and low latency. For example, in a fire detection and extinguishing use case, actuators must close fire shutters and activate sprinklers within 1–2 seconds of a fire being detected by sensors. Therefore, a long eDRX cycle would not be able to meet the latency requirement. eDRX is clearly unsuitable for latency-critical use cases. Therefore, Rel-18 intends to research ultra-low-power mechanisms that can support low latency, including mechanisms that achieve latency shorter than that of eDRX.

[0029] Currently, the UE must wake up periodically, once per DRX cycle, which accounts for a large portion of power consumption during periods when there is no signaling or data traffic. Power consumption can be significantly reduced if the UE (main radio) can wake up only when triggered / addressed, e.g., by paging. This can be achieved by triggering the main radio with a wake-up signal and using an independent receiver that can monitor the wake-up signal with ultra-low power consumption. The main radio is responsible for downlink reception, including transmission and reception of SSB / system information / paging / data / control signals, and uplink transmission, including transmission of data and control signals. The main radio also evaluates cell (re)selection to ensure the UE is camped on the best cell. The main radio can be turned off or set to a (deep) sleep state unless it is turned on.

[0030] The power consumption when monitoring for a wake-up signal depends on the design of the wake-up signal and the hardware modules of the wake-up receiver used for signal detection and processing.

[0031] There is a need for emphasis on low-power wake-up signals (WUS) / WUR for power-sensitive small form factor devices, including IoT applications (industrial sensors, controllers, etc.), wearable devices, and other applications such as extended reality (XR) / smart glasses, smartphones, etc.

[0032] 1 illustrates an example of a communication environment 100 in which exemplary embodiments of the present disclosure may be implemented. In the communication environment 100, multiple communication devices, including a first device 110 and a second device 120, may communicate with each other.

[0033] 1, the first device 110 may include a terminal device, and the second device 120 may include a network device that provides service to the terminal device. The service area of ​​the second device 120 may be referred to as a cell 102.

[0034] It should be understood that the number of devices and their connections shown in FIG. 1 are for illustrative purposes only and are not intended to be limiting. Communication environment 100 may include any suitable number of devices configured to implement exemplary embodiments of the present disclosure. Although not shown, it should be understood that one or more additional devices may be located within cell 102 and one or more additional cells may be deployed within communication environment 100. It should be noted that while second device 120 is illustrated as a network device, it may be a device other than a network device. While first device 110 is illustrated as a terminal device, it may be a device other than a terminal device.

[0035] For purposes of explanation, the following describes some exemplary embodiments in which first device 110 operates as a terminal device and second device 120 operates as a network device, although in some exemplary embodiments, operations described with respect to a terminal device may be implemented in a network device or other device, and operations described with respect to a network device may be implemented in a terminal device or other device.

[0036] In some demonstrative embodiments, when the first device 110 is an end device and the second device 120 is a network device, the link from the second device 120 to the first device 110 is called a downlink (DL) and the link from the first device 110 to the second device 120 is called an uplink (UL). In the DL, the second device 120 is a transmitting (TX) device (or transmitter) and the first device 110 is a receiving (RX) device (or receiver). In the UL, the first device 110 is a TX device (or transmitter) and the second device 120 is a RX device (or receiver).

[0037] Communications in communication environment 100 may be implemented according to any suitable communications protocol, including first-generation (1G), second-generation (2G), third-generation (3G), fourth-generation (4G), fifth-generation (5G), sixth-generation (6G) cellular communications protocols, wireless local network communications protocols such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, and / or other protocols now known or developed in the future, and may utilize any suitable wireless communications technology, including, but not limited to, code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), frequency division duplex (FDD), time division duplex (TDD), multiple-input multiple-output (MIMO), orthogonal frequency division multiplexing (OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), and / or other technologies now known or developed in the future.

[0038] 2A and 2B show example block diagrams of the operation of a first device with a WUR, respectively, according to some example embodiments of the present invention.

[0039] For example, consider the case where a separate low-power wake-up receiver is used in a terminal device, such as a UE, and evaluate how this can reduce the UE's power consumption. Generally, the UE's main radio is in sleep mode (or powered off or in a limited-functionality state) to save power and is preferably activated only upon receiving a wake-up signal (WUS) from the network. In the limited-functionality state, the main radio can perform, for example, slow cell reselection evaluation, RRM, RLM, and BFD measurements. Essentially, the network (e.g., network device) wakes up the UE precisely when necessary in an event-driven manner by sending a special WUS to the UE that is monitored by the UE's dedicated low-power WUS receiver (e.g., an ultra-low-power receiver). When the UE receives the WUS, the WUS receiver triggers the wake-up of the normal NR transceiver and can begin communication / normal operation. This causes the ultra-low-power receiver to wake up the main radio (see Figure 2B). Otherwise, the main radio remains off, in deep sleep mode, or in a limited-functionality state. We hypothesize that a low-power wake-up receiver can operate in a constantly "on" state with very low power consumption. Indeed, by designing a simple WUS signal and using dedicated hardware for its monitoring, we expect to be able to significantly reduce power consumption compared to NR transceivers.

[0040] Low-power WUS (LP-WUS) is currently being considered in both idle / inactive and connected modes. Embodiments of the present disclosure focus on conditions under which a UE is permitted to monitor LP-WUS instead of NR signals from a primary radio or a limited amount of NR signals from a primary radio.

[0041] According to an exemplary embodiment of the present disclosure, a solution for monitoring a wake-up signal is provided. In this solution, a device determines whether the monitoring start condition or the monitoring stop condition is satisfied according to a setting including at least one of a monitoring start condition or a monitoring stop condition associated with the wake-up signal. Then, the device performs a monitoring operation corresponding to the satisfied condition. For example, if the monitoring start condition is satisfied, the device can start monitoring the wake-up signal. If the monitoring stop condition is satisfied, the device can stop monitoring the wake-up signal.

[0042] By defining the monitoring start and / or stop conditions, the device can monitor the LP-WUS only when the conditions are met, which allows the device to avoid delays and further power consumption caused by unnecessary monitoring of the WUS.

[0043] 3 illustrates an example signaling diagram 300 of a wake-up signal monitoring procedure according to some exemplary embodiments of the present disclosure. For illustrative purposes, diagram 300 will be described with reference to FIG. 1, using, for example, first device 110 and second device 120.

[0044] In the exemplary embodiment shown in FIG. 3 , the second device 120 may transmit a wake-up signal to the first device 110. The first device 110 determines whether conditions for monitoring for the wake-up signal are met. The conditions include a monitoring start condition associated with the wake-up signal, a monitoring stop condition associated with the wake-up signal, and / or other suitable conditions. In the context of the present disclosure, the monitoring start condition is also referred to as a WUS monitoring start condition, and the monitoring stop condition is also referred to as a WUS monitoring stop condition. It should be understood that the conditions for monitoring the LP-WUS may further include one or more of the above conditions and other conditions not detailed herein.

[0045] The conditions can be predetermined in the specifications. In this case, the first device 110 determines whether the monitoring start condition or the monitoring stop condition is satisfied according to the definition of the conditions for monitoring the LP-WUS in the specifications.

[0046] Alternatively, the condition may be set by the network, for example, by the second device 120. In some examples, the configuration including the condition is transmitted (310) from the second device 120 to the first device 110 via dedicated signaling, broadcast signaling, and / or the like. For example, the configuration is transmitted via dedicated RRC signaling (e.g., an RRC release or RRC reconfiguration message) or a system information block (SIB). In this situation, the first device 110 receives (320) the configuration from the second device 120 for monitoring the WUS.

[0047] By setting the monitoring start condition and / or the monitoring stop condition, the first device 110 determines which monitoring condition is satisfied from the monitoring start condition and the monitoring stop condition (330). In other words, the first device 110 determines whether the monitoring start condition or the monitoring stop condition is satisfied.

[0048] There are various ways in which the first device 110 can determine which monitoring conditions are met. For example, the first device 110 can consider various factors such as received power, measurement mitigation, power range, monitoring period, and / or these factors.

[0049] In some exemplary embodiments, the first device 110 may determine whether a difference between a current received power of the reference signal and a previous received power of the reference signal exceeds a threshold power. If the difference exceeds the threshold power, the first device 110 may determine that a monitoring initiation condition is met. For example, the received power of the reference signal may be a reference signal received power (RSRP). It should be understood that the above example of received power is for illustrative purposes only, and other signal quality metrics, such as a reference signal received quality (RSRQ), a reference signal strength indicator (RSSI), and a signal-to-noise ratio (SINR), are also applicable. In some exemplary embodiments, the signal quality metric is measured from a signal received by a main radio or a separate receiver.

[0050] The previous received power / measurement result may be stored in advance. For example, the previous received power / measurement result is stored after a cell is selected, including when a new cell is selected or a cell is reselected. Alternatively, the previous received power / measurement result is stored when a monitoring start condition is no longer satisfied or when the monitoring start condition has not been satisfied for a certain period of time. As yet another alternative, the previous received power / measurement result may be stored following a determination that the previous received power / measurement result is not equal to the stored received power.

[0051] Specifically, as an example, the monitoring start / stop condition is satisfied if the RSRP has increased / decreased by more than a predetermined value / threshold since the RSRP was last saved, or if the RSRP has decreased by less than or more than a predetermined value / threshold since the RSRP was last saved.

[0052] Additionally, the first device 110 (e.g., a UE) may store an RSRP for comparison in some cases. For example, the comparison RSRP may be stored after selecting or reselecting a new cell. In another example, the comparison RSRP is stored when a condition is no longer met. Alternatively, the comparison RSRP may be stored when a monitoring initiation condition is not met during a timer period. As yet another example, if the current RSRP is, for example, greater than or less than the stored RSRP, the current RSRP may be stored as the comparison RSRP.

[0053] In some exemplary embodiments, if the first device 110 is relaxing measurements, such as, for example, radio resource management (RRM), radio link monitoring (RLM), and / or beam failure detection (BFD) measurements, the first device 110 can determine that a monitoring start / stop condition is met.

[0054] The monitoring start condition may be associated with the idle mode, the inactive mode, and / or the connected mode. Similarly, the monitoring stop condition may be associated with the idle mode, the inactive mode, and / or the connected mode.

[0055] In some exemplary embodiments, for paging in idle / inactive mode, the second device 120 does not necessarily need to know whether the first device 110 is monitoring the LP-WUS in the cell, because the second device 120 can first send the LP-WUS to wake up the first device 110 and then send a paging message to the first device 110 at a paging occasion (PO). If the first device 110 is not monitoring the LP-WUS, the first device 110 can directly monitor the PO. For terminal devices that are cell centers, the LP-WUS can be beneficial.

[0056] In some exemplary embodiments, in connected mode, the second device 120 (e.g., network (NW)) and the first device 110 (e.g., UE) need to have a common understanding of whether the UE is monitoring the LP-WUS. Therefore, whether the monitoring condition is met may need to be synchronized between the UE and the NW. Therefore, once the monitoring condition is met, the UE needs to determine whether to monitor the LP-WUS. If so, the UE can start monitoring immediately or continue to monitor the physical downlink control channel (PDCCH) as usual. In some exemplary embodiments, the UE notifies the NW when there is a change in WUS monitoring. In some exemplary embodiments, the UE notifies the network when the conditions for starting or stopping monitoring are met.

[0057] Furthermore, the first device 110 can determine whether a monitoring stop condition for monitoring the LP-WUS is met in various ways. As described above, the monitoring stop condition may be set by the network (e.g., the second device 120) or defined in a specification.

[0058] In some exemplary embodiments, the first device 110 may determine that a monitoring stop condition is met if the current received power of the reference signal is within a predetermined range. For example, the first device 110 may determine that a monitoring stop condition is met if the current RSRP is within a certain range, e.g., below a threshold. In this manner, false detection of the LP-WUS in poor wireless quality situations may be avoided.

[0059] Alternatively, in some exemplary embodiments, if the current received power of the reference signal is determined to be within a predetermined range, first device 110 may determine that a monitoring stop condition is met.

[0060] In yet another exemplary embodiment, the first device 110 may determine that the monitoring stop condition is met if a predetermined time has elapsed since the first device began monitoring for a wake-up signal. This predetermined time may be defined as an absolute time or as a number of monitoring opportunities for the LP-WUS. For example, the time lapse may be a predetermined period of time. Alternatively, the time lapse may include a predetermined number of monitoring opportunities for the wake-up signal.

[0061] As yet another alternative, in some exemplary embodiments, the monitoring stop condition is determined to be satisfied if the wake-up signal is not detected a predetermined number of times after the first device 110 starts monitoring for a wake-up signal. That is, the stop condition is satisfied if the LP-WUS is not detected a certain number of times after the first device 110 starts monitoring for the LP-WUS. Therefore, the first device 110 counts only the number of consecutive times the LP-WUS is not detected.

[0062] In some embodiments, for example, the configuration received from second device 120 or predefined in a specification may consist of only a monitoring start condition without a monitoring start condition. If the monitoring start condition is met, second device 120 may send a notification to first device 110 to stop monitoring for a wake-up signal. First device 110 may continue to monitor for a wake-up signal until it receives a notification to stop monitoring from second device 120.

[0063] Specifically, if the UE is configured with only the LP-WUS monitoring start condition and does not have the LP-WUS monitoring stop condition, the UE will continue to monitor the LP-WUS until the NW explicitly notifies it to stop the LP-WUS.

[0064] If the first device 110 determines that a monitoring condition is satisfied, the first device 110 performs a monitoring operation corresponding to the satisfied monitoring condition (340). For example, if a monitoring start condition is satisfied, the first device 110 may start monitoring for a wake-up signal. Alternatively, or additionally, if a monitoring stop condition is satisfied, the first device 110 may stop monitoring for a wake-up signal.

[0065] In some cases, the first device 110 may notify the second device 120 of its monitoring information. For example, the first device 110 may transmit monitoring information regarding whether the first device 110 is monitoring a wake-up signal to the second device 120. The second device 120 may receive this monitoring information and determine whether the first device is monitoring a wake-up signal. In this manner, the monitoring information is synchronized between the first device 110 and the second device 120.

[0066] Optionally, in some exemplary embodiments, first device 110 can transmit information about the satisfied monitoring condition to second device 120. In this case, second device 120 can receive the information and know whether the monitoring start condition or monitoring stop condition has been satisfied.

[0067] In some exemplary embodiments, the first device 110 may be in an idle mode or an inactive mode, and the second device 120 may send a wake-up signal and / or a paging signal to the first device 110 based on monitoring information regarding whether the first device is monitoring for a wake-up signal.

[0068] In some embodiments, the first device 110 is a UE in an idle / inactive mode, and the second device 120 (e.g., a network) can transmit a WUS or a page to the UE. In one example, the network can determine whether to transmit a WUS or a page based on knowledge of whether the UE is monitoring a LP-WUS. In another example, the network can transmit both a WUS and a page to a UE in an idle / inactive mode.

[0069] In some exemplary embodiments, the first device 110 is in a connected mode, and the second device 120 can transmit a wake-up signal and / or downlink control information (e.g., a PDCCH) to the first device 110 based on the monitoring information.

[0070] In some embodiments, the first device 110 may be a UE in connected mode. The NW can transmit a WUS or downlink control information (e.g., a PDCCH) to a UE in connected mode. In one example, the NW can determine whether to transmit a WUS or a PDCCH based on knowledge of whether the UE is monitoring a LP-WUS. In another example, the NW can transmit both a WUS and a PDCCH to a UE in connected mode.

[0071] 4 shows a flowchart of an example method 400 implemented at a first device, in accordance with some example embodiments of the present disclosure. For purposes of explanation, the method 400 will be described from the perspective of the first device 110 of FIG.

[0072] In block 410, the first device 110 determines that a monitoring condition is satisfied based on a setting including at least one of a start monitoring condition or a stop monitoring condition associated with the wake-up signal. The monitoring condition is a start monitoring condition or a stop monitoring condition.

[0073] In block 420, the first device 110 performs a monitoring action corresponding to the satisfied monitoring condition.

[0074] In some exemplary embodiments, performing a monitoring operation corresponding to the target condition includes at least one of starting monitoring for a wake-up signal in accordance with a determination that a monitoring start condition is satisfied, or stopping monitoring for a wake-up signal in accordance with a determination that a monitoring stop condition is satisfied.

[0075] In some exemplary embodiments, the method 400 further includes receiving a configuration from the second device.

[0076] In some exemplary embodiments, receiving the configuration includes receiving the configuration via at least one of dedicated signaling or broadcast signaling. For example, the dedicated signaling may include an RRC release message or an RRC reconfiguration message. The broadcast signaling may include a system information message or a system information block.

[0077] In some exemplary embodiments, determining that the monitoring condition is satisfied includes determining whether a difference between a current received power of the reference signal and a previously received power of the reference signal exceeds a threshold power, and determining that the monitoring start condition is satisfied in accordance with a determination that the difference exceeds the threshold power.

[0078] In some exemplary embodiments, the previous received power is stored after a cell is selected, or is stored pursuant to a determination that the monitoring start condition is no longer satisfied, or that the monitoring start condition has not been satisfied for a timer period, or is stored pursuant to a determination that the previous received power is not equal to the stored received power.

[0079] In some exemplary embodiments, determining that the monitoring condition is met includes determining that the monitoring initiation condition is met if the first device determines that it is relaxing the measurement.

[0080] In some exemplary embodiments, the measurements may include RRM, RLM, or BFD measurements.

[0081] In some exemplary embodiments, the monitoring initiation condition or conditions are associated with at least one of an idle mode, an inactive mode, or a connected mode.

[0082] In some exemplary embodiments, determining that the monitoring condition is satisfied includes determining that the monitoring stop condition is satisfied in accordance with determining that the current received power of the reference signal is within a predetermined range.

[0083] In some exemplary embodiments, determining that the monitoring condition is satisfied includes determining that a certain amount of time has elapsed since the first device began monitoring for a wake-up signal and determining that a monitoring stop condition is satisfied.

[0084] In some exemplary embodiments, the period is a predefined period or includes a predetermined number of opportunities to monitor for a wake-up signal.

[0085] In some exemplary embodiments, determining that the monitoring condition is satisfied includes determining that the monitoring stop condition is satisfied when the first device determines that the wake-up signal has not been detected a predetermined number of times since the first device began monitoring for the wake-up signal.

[0086] In some exemplary embodiments, the method 400 further includes monitoring for a wake-up signal until the first device receives notification from the second device to stop monitoring.

[0087] In some exemplary embodiments, the method 400 further includes transmitting information regarding the satisfied monitoring condition to the second device.

[0088] In some exemplary embodiments, the method 400 further includes transmitting monitoring information to the second device regarding whether the first device is monitoring for a wake-up signal.

[0089] In some exemplary embodiments, the first device is a terminal device and the second device is a network device.

[0090] 5 shows a flowchart of an example method 500 implemented in a second device, in accordance with some example embodiments of the present disclosure. For purposes of explanation, the method 500 will be described from the perspective of the second device 120 of FIG.

[0091] In block 510, the second device 120 transmits to the first device 110 a configuration including at least one of a start monitoring condition or a stop monitoring condition associated with a wake-up signal.

[0092] In some exemplary embodiments, transmitting the configuration includes transmitting the configuration via at least one of dedicated signaling or broadcast signaling. For example, the dedicated signaling may include an RRC release message or an RRC reconfiguration message. The broadcast signaling may include a system information message or a system information block.

[0093] In some exemplary embodiments, the setting includes only a monitoring start condition, and when the monitoring start condition is met, the second device is further configured to send a notification to the first device indicating that monitoring for the wake-up signal has been stopped.

[0094] In some exemplary embodiments, the method 500 further includes receiving monitoring information from the first device regarding whether the first device is monitoring for a wake-up signal.

[0095] In some exemplary embodiments, the method 500 further includes transmitting at least one of a wake-up signal or a paging signal to the first device based on the monitoring information.

[0096] In some demonstrative embodiments, the method 500 further includes transmitting at least one of a wake-up signal or downlink control information to the first device based on the monitoring information.

[0097] In some exemplary embodiments, second device 120 may receive information about the satisfied monitoring condition from first device 110. The monitoring condition may be a monitoring start condition or a monitoring stop condition. Thus, second device 120 may know whether the monitoring start condition or the monitoring stop condition is satisfied.

[0098] In some exemplary embodiments, the first device is a terminal device and the second device is a network device.

[0099] In some demonstrative embodiments, a first apparatus capable of performing any of the methods 400 (e.g., the first device 110 of FIG. 1 ) may comprise means for performing each operation of the method 400. The means may be implemented in any suitable form. For example, the means may be implemented as a circuit or a software module. The first apparatus may be implemented as or included in the first device 110 of FIG. 1 .

[0100] In some exemplary embodiments, the first device comprises: means for determining, based on a setting including at least one of a monitoring start condition or a monitoring stop condition associated with the wake-up signal, that a monitoring condition is met, where the monitoring condition is a monitoring start condition or a monitoring stop condition; and means for performing a monitoring operation corresponding to the met monitoring condition.

[0101] In some exemplary embodiments, the means for performing a monitoring operation corresponding to the target condition comprises at least one of means for starting monitoring for a wake-up signal in accordance with a determination that a monitoring start condition is satisfied, or means for stopping monitoring for a wake-up signal in accordance with a determination that a monitoring stop condition is satisfied.

[0102] In some exemplary embodiments, the first apparatus further comprises means for receiving a configuration from the second device.

[0103] In some exemplary embodiments, the means for receiving the configuration includes means for receiving the configuration via at least one of dedicated signaling or broadcast signaling. For example, the dedicated signaling may include an RRC release message or an RRC reconfiguration message. The broadcast signaling may include a system information message or a system information block.

[0104] In some exemplary embodiments, the means for determining that the monitoring condition is satisfied includes means for determining whether a difference between a current received power of the reference signal and a previously received power of the reference signal exceeds a threshold power, and means for determining that the monitoring start condition is satisfied according to a determination that the difference exceeds the threshold power.

[0105] In some exemplary embodiments, the previous received power is stored after a cell is selected, or is stored pursuant to a determination that the monitoring start condition is no longer satisfied, or that the monitoring start condition has not been satisfied for a timer period, or is stored pursuant to a determination that the previous received power is not equal to the stored received power.

[0106] In some exemplary embodiments, the means for determining that the monitoring condition is satisfied includes means for determining that the monitoring initiation condition is satisfied if the first device determines that it is relaxing the measurement.

[0107] In some exemplary embodiments, the measurements include radio resource management (RRM), radio link monitoring (RLM), or beam failure detection (BFD) measurements.

[0108] In some exemplary embodiments, the monitoring initiation condition or conditions are associated with at least one of an idle mode, an inactive mode, or a connected mode.

[0109] In some exemplary embodiments, the means for determining that a monitoring condition is satisfied includes means for determining that a monitoring stop condition is satisfied in accordance with a determination that a current received power of the reference signal is within a predetermined range.

[0110] In some exemplary embodiments, the means for determining that the monitoring condition is satisfied includes means for determining that a certain amount of time has elapsed since the first device began monitoring for a wake-up signal and determining that the monitoring stop condition is satisfied.

[0111] In some exemplary embodiments, the period is a predefined period or includes a predetermined number of monitoring opportunities for a wake-up signal.

[0112] In some exemplary embodiments, the means for determining that the monitoring condition is satisfied includes means for determining that the monitoring stop condition is satisfied in accordance with determining that the wake-up signal has not been detected a predetermined number of times since the first device began monitoring for the wake-up signal.

[0113] In some exemplary embodiments, the first apparatus further comprises means for monitoring for a wake-up signal until the first device receives notification from the second device to stop monitoring.

[0114] In some exemplary embodiments, the first apparatus further comprises means for transmitting information regarding the satisfied monitoring condition to the second device.

[0115] In some exemplary embodiments, the first apparatus further comprises means for transmitting monitoring information regarding whether the first device is monitoring for a wake-up signal to the second device.

[0116] In some exemplary embodiments, the first device is a terminal device and the second device is a network device.

[0117] In some exemplary embodiments, the first apparatus further includes means for performing method 400 or other operations in some exemplary embodiments of first device 110. In some exemplary embodiments, the means comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to perform the operations.

[0118] In some demonstrative embodiments, a second apparatus performing any of the methods 500 (e.g., the second device 120 of FIG. 1 ) may comprise means for performing each operation of the method 500. The means may be implemented in any suitable form. For example, the means may be implemented as a circuit or a software module. The second apparatus may be implemented as or included in the second device 120 of FIG. 1 .

[0119] In some exemplary embodiments, the second apparatus comprises means for transmitting to the first device a configuration including at least one of a monitoring start condition or a monitoring stop condition associated with the wake-up signal.

[0120] In some exemplary embodiments, the means for transmitting the configuration includes means for transmitting the configuration via at least one of dedicated signaling or broadcast signaling. For example, the dedicated signaling may include an RRC release message or an RRC reconfiguration message. The broadcast signaling may include a system information message or a system information block.

[0121] In some exemplary embodiments, the configuration includes only a monitoring start condition, and when the monitoring start condition is met, the second device is further configured to execute means for sending a notification to the first device indicating that monitoring for the wake-up signal has been stopped.

[0122] In some exemplary embodiments, the second apparatus further comprises means for receiving monitoring information from the first device regarding whether the first device is monitoring for a wake-up signal.

[0123] In some exemplary embodiments, the second apparatus further comprises means for transmitting at least one of a wake-up signal or a paging signal to the first device based on the monitoring information.

[0124] In some exemplary embodiments, the second apparatus further comprises means for transmitting at least one of a wake-up signal or downlink control information to the first device based on the monitoring information.

[0125] In some exemplary embodiments, the second apparatus may further comprise means for receiving, from the first device, information regarding the satisfied monitoring condition, the monitoring condition being a monitoring start condition or a monitoring stop condition.

[0126] In some exemplary embodiments, the first device is a terminal device and the second device is a network device.

[0127] In some exemplary embodiments, the second apparatus further comprises means for performing other operations of method 500 or some exemplary embodiments of second device 120. In some exemplary embodiments, the means comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus to perform operations.

[0128] 6 illustrates a simplified block diagram of an apparatus 600 suitable for implementing an exemplary embodiment of the present disclosure. The apparatus 600 may be provided to implement, for example, a communications apparatus such as the first device 110 or the second device 120 shown in FIG. 1. As shown, the apparatus 600 includes one or more processors 610, one or more memories 620 coupled to the processors 610, and one or more communications modules 640 coupled to the processors 610.

[0129] The communications module 640 is for two-way communication. The communications module 640 includes one or more communications interfaces that facilitate communication with one or more other modules or devices. The communications interfaces may represent any interface necessary for communication with other network elements. In some exemplary embodiments, the communications module 640 may include at least one antenna.

[0130] Processor 610 may be of any type suitable for a local technology network and may comprise, for example, one or more of a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), a processor based on a multi-core processor architecture, etc. Device 600 may comprise multiple processors, such as application specific integrated circuit chips, time-slaved to a clock that synchronizes the main processor.

[0131] The memory 620 may comprise one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memory include, but are not limited to, read-only memory (ROM) 624, electrically programmable read-only memory (EPROM), flash memory, hard disks, compact disks (CDs), digital video disks (DVDs), optical disks, laser disks, and other magnetic and / or optical storage devices. Examples of volatile memory include, but are not limited to, random access memory (RAM) 622 and other volatile memory that is not retained during power loss.

[0132] The computer program 630 includes computer-executable instructions that are executed by the associated processor 610. The instructions of the program 630 may include instructions for performing the operations / acts of some exemplary embodiments of the present disclosure. The program 630 is stored in a memory (e.g., the ROM 624). The processor 610 can load the program 630 into the RAM 622 to perform any appropriate operations and processes.

[0133] The exemplary embodiment of the present disclosure is performed by means of a program 630, which enables the device 600 to perform any of the processes of the present disclosure described with reference to Figures 3 to 5. The exemplary embodiment of the present disclosure can also be performed by hardware or a combination of software and hardware.

[0134] In some exemplary embodiments, the program 630 may be tangibly stored on a computer-readable medium included in the device 600 (such as memory 620) or on other storage accessible to the device 600. The device 600 can load the program 630 from the computer-readable medium into RAM 622 for execution. In some exemplary embodiments, the computer-readable medium can include any type of non-transitory storage medium, such as ROM, EPROM, flash memory, hard disk, CD, DVD, and the like. The term "non-transitory" as used herein refers not to a limitation on the permanence of the storage device (e.g., ROM versus RAM), but to a limitation on the medium itself (i.e., tangible, not a signal).

[0135] 7 shows an example of a computer readable medium 700, which may be in the form of a CD, DVD, or other optical storage disc. The computer readable medium 700 has the program 630 stored thereon.

[0136] In general, various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic, or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software executed by a controller, microprocessor, or other computing device. While various aspects of embodiments of the present disclosure have been described using block diagrams, flowcharts, or other diagrams, it should be understood that the blocks, devices, systems, techniques, or methods described herein may be implemented in, by way of non-limiting example, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller, other computing device, or combinations thereof.

[0137] Some exemplary embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer-readable medium, such as a non-transitory computer-readable medium. The computer program product includes computer-executable instructions, such as those included in program modules, for executing on a device on a target physical or virtual processor to perform any of the methods described above. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The functionality of the program modules may be combined or divided among program modules as desired in various embodiments. The machine-executable instructions for a program module may be executed in a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.

[0138] Program code for implementing the methods of the present disclosure can be written in any combination of one or more programming languages. The program code can be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, and when executed by the processor or controller, can implement the functions / acts specified in the flowcharts and / or block diagrams. The program code can be executed entirely on a machine, partially on a machine, as a stand-alone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0139] In the context of the present disclosure, computer program code or associated data may be transmitted by any suitable carrier, such as a signal, computer-readable medium, or the like, to enable a device, apparatus, or processor to perform the various processes and operations described above.

[0140] The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. Computer-readable media include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. More specific examples of computer-readable storage media include an electrical connection having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0141] Furthermore, although operations are described in a particular order, this does not imply that the operations must be performed in that particular order or sequence, or that all of the operations shown must be performed, to achieve desirable results. Multitasking and parallel processing may be preferred in certain situations. Similarly, while the above description includes details of several specific examples, these should not be construed as limiting the scope of the disclosure, but rather as descriptions of features unique to particular embodiments. Unless expressly stated otherwise, certain features described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, unless expressly stated otherwise, various features described in the context of a single embodiment may also be implemented in multiple embodiments separately or in any suitable subcombination.

[0142] Although the present disclosure has been described in terms of structural features and / or method acts, it should be understood that the present disclosure, as defined by the appended claims, is not necessarily limited to the specific structural features or acts described above. Rather, the specific structural features and acts described above are disclosed as example forms for implementing the claims.

[0143] Partial Glossary UE User Equipment 5G (5th Generation) RAN Radio Access Network LTE Long Term Evolution LTE-A LTE-Advanced WCDMA (Registered Trademark) Wideband Code Division Multiple Access HSPA High Speed ​​Packet Access NB-IoT Narrowband Internet of Things NR new radio BS base station AP Access point eNodeB evolved Node B gNB / NR NB Next Generation Node B RRU Remote Radio Unit RH Radio Header RRH Remote Radio Head CU Centralized Unit DU Distributed Unit SS subscriber station MS mobile station AT Access Terminal VoIP Voice over IP PDA Personal Digital Assistant LEE notebook computer built-in equipment LME laptop-equipped devices USB Universal Serial Bus CPE Customer Premises Equipment HMD Head Mounted Display MT Mobile Terminal IAB Integrated Access and Backhaul DL Downlink UL Uplink Tx transmission Rx reception ID Identifier / Identification Number IEEE Institute of Electrical and Electronics Engineers CDMA Code Division Multiple Access FDMA Frequency Division Multiple Access TDMA Time Division Multiple Access FDD Frequency Division Duplex TDD time division duplex MIMO multiple input multiple output OFDM Orthogonal Frequency Division Multiplexing DFT-s-OFDM Discrete Fourier Transform Distributed OFDM IoT Internet of Things eMTC Enhanced Machine Type Communication URLLC Ultra-reliable low latency communication eMBB Enhanced Mobile Broadband mMTC Large-scale Machine Type Communication RRC Radio Resource Control DRX Discontinuous Reception WUR Wake-up Receiver WUS wake-up signal LP-WUS Low power WUS XR Augmented Reality SIB System Information Block RSRP reference signal received power RRM Radio Resource Management RLM Radio Link Monitoring BFD Beam Failure Detection PO Paging Opportunity PDCCH Physical Downlink Control Channel

Claims

1. a first device, at least one processor; When executed by the at least one processor, the first device is configured to: determining that a monitoring condition is satisfied based on a setting including at least one of a monitoring start condition or a monitoring stop condition associated with a wake-up signal, wherein the monitoring condition is the monitoring start condition or the monitoring stop condition; performing a monitoring action corresponding to the satisfied monitoring condition; at least one memory storing instructions for executing the A first device comprising:

2. Executing a monitoring action corresponding to the target condition includes at least: Initiating monitoring for the wake-up signal in response to determining that the monitoring initiation condition is satisfied; or stopping monitoring for the wake-up signal in response to determining that the monitoring stop condition is satisfied; The first device of claim 1 , comprising at least one of:

3. The first device further comprises: receiving the configuration from a second device; 2. The first device of claim 1, adapted to execute:

4. receiving the configuration receiving said configuration via at least one of dedicated signaling or broadcast signaling; The first device of claim 3 , comprising:

5. The dedicated signaling comprises: a Radio Resource Control (RRC) release message or an RRC reconfiguration message; The first device of claim 4 , comprising:

6. The broadcast signaling includes: System information messages or system information blocks, The first device of claim 4 , comprising:

7. Determining that the monitoring condition is satisfied includes: determining whether a difference between a current received power of the reference signal and a previous received power of the reference signal exceeds a threshold power; determining that the monitoring initiation condition is satisfied in response to a determination that the difference exceeds the threshold power; 7. A first device according to claim 1, comprising:

8. The previous received power is stored after a cell is selected, or the previous received power is preserved in accordance with a determination that the monitoring initiation condition is no longer satisfied or that the monitoring initiation condition has not been satisfied within a timer period; or and storing the previously received power in response to a determination that the previously received power is not equal to a stored received power. The first device of claim 7 .

9. Determining that the monitoring condition is satisfied includes: determining that the monitoring initiation condition is satisfied in accordance with determining that the first device is relaxing measurements; 7. A first device according to claim 1, comprising:

10. The first device of claim 9 , wherein the measurements include radio resource management (RRM), radio link monitoring (RLM), or beam failure detection (BFD) measurements.

11. The first device according to claim 1 , wherein the or the monitoring initiation condition relates to at least one of an idle mode, an inactive mode, or a connected mode.

12. Determining that the monitoring condition is satisfied includes: determining that the monitoring stop condition is satisfied in accordance with a determination that the current received power of the reference signal is within a predetermined range; 12. A first device according to any preceding claim, comprising:

13. Determining that the monitoring condition is satisfied includes: determining that the monitoring stop condition is satisfied in accordance with a determination that a period of time has elapsed since the first device started monitoring the wake-up signal; 12. A first device according to any preceding claim, comprising:

14. The first device of claim 12 , wherein the period is a predetermined period or comprises a predetermined number of monitoring opportunities for the wake-up signal.

15. Determining that the monitoring condition is satisfied includes: determining that the monitoring stop condition is satisfied according to a determination that the wake-up signal has not been detected a predetermined number of times since the first device started monitoring for the wake-up signal; 12. A first device according to any preceding claim, comprising:

16. The setting includes only the monitoring start condition, and when the monitoring start condition is satisfied, the first device further monitoring the wake-up signal until the first device receives a notification from the second device to stop monitoring; 2. The first device of claim 1, adapted to execute:

17. The first device further comprises: sending information about the satisfied monitoring condition to the second device; 17. A first device according to any preceding claim, adapted to execute:

18. The first device further comprises: sending monitoring information to the second device regarding whether the first device is monitoring the wake-up signal; 18. A first device according to any preceding claim, adapted to execute:

19. The first device according to any one of claims 1 to 18, wherein the first device is a terminal device and the second device is a network device.

20. a second device, at least one processor; When executed by the at least one processor, the second device receives at least: sending to the first device a configuration including at least one of a start monitoring condition or a stop monitoring condition associated with the wake-up signal; at least one memory storing instructions for executing the A second device comprising:

21. transmitting the configuration transmitting said configuration via at least one of dedicated signaling or broadcast signaling; The second device of claim 20, comprising:

22. The dedicated signaling comprises: a Radio Resource Control (RRC) release message or an RRC reconfiguration message; 22. The second device of claim 21, comprising:

23. The broadcast signaling includes: System information messages or system information blocks, 22. The second device of claim 21, comprising:

24. The setting includes only the monitoring start condition, and when the monitoring start condition is satisfied, the second device further sending a notification to the first device to stop monitoring for the wake-up signal; 21. The second device of claim 20, adapted to perform:

25. The second device further comprises: receiving monitoring information from the first device regarding whether the first device is monitoring the wake-up signal; 21. The second device of claim 20, adapted to perform:

26. The first device is in an idle mode or an inactive mode, and the second device further comprises: transmitting at least one of the wake-up signal or the paging signal to the first device based on the monitoring information; 26. The second device of claim 25, adapted to perform:

27. The first device is in a connected mode, and the second device further comprises: transmitting at least one of the wake-up signal or downlink control information to the first device based on the monitoring information; 26. The second device of claim 25, adapted to perform:

28. The second device further comprises: receiving, from the first device, information about a satisfied monitoring condition, the monitoring condition being the monitoring start condition or the monitoring stop condition; 21. The second device of claim 20, adapted to perform:

29. The second device according to any one of claims 20 to 28, wherein the first device is a terminal device and the second device is a network device.

30. determining, in a first device, that a monitoring condition is satisfied based on a setting including at least one of a monitoring start condition or a monitoring stop condition associated with a wake-up signal, wherein the monitoring condition is the monitoring start condition or the monitoring stop condition; performing a monitoring action corresponding to the satisfied monitoring condition; A method comprising:

31. transmitting, at the second device, a configuration including at least one of a monitoring start condition or a monitoring stop condition associated with the wake-up signal to the first device; A method comprising:

32. 1. A first device, comprising: means for determining whether a monitoring condition is satisfied based on a setting including at least one of a monitoring start condition or a monitoring stop condition associated with a wake-up signal, the monitoring condition being the monitoring start condition or the monitoring stop condition; means for performing a monitoring action corresponding to said monitoring condition being satisfied; A first device comprising:

33. a second device, means for transmitting to the first device a configuration including at least one of a monitoring start condition or a monitoring stop condition associated with the wake-up signal; A second device comprising:

34. 32. A computer readable medium having instructions recorded thereon for causing an apparatus to perform at least the method of claim 30 or the method of claim 31.

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