Power state indication

Abstract

Embodiments of the present disclosure relate to apparatuses, methods, devices, and computer-readable storage media for power state indication. A first device determines a power state of a primary radio of the first device. The first device indicates the determined power state of the primary radio to a second device. In this way, the second device can be aware of the power state of the primary radio of the first device.

Description

Technical Field

[0001] Various exemplary embodiments of this disclosure are generally related to the telecommunications field, and more particularly to methods, apparatuses, devices, and computer-readable storage media for power status indication. Background Technology

[0002] Communication systems such as fifth-generation (5G) systems are designed and developed for mobile phones and vertical use cases. In addition to latency, reliability, and availability, user equipment (UE) energy efficiency is also a relevant aspect of communication systems. Currently, devices such as UEs may require recharging weekly or daily, depending on individual usage time. Typically, 5G devices consume tens of milliwatts in Radio Resource Control (RRC) idle / inactive states and hundreds of milliwatts in RRC connected states. Designs that extend battery life are essential for improving energy efficiency and achieving a better user experience.

[0003] Energy efficiency is even more critical for UEs without a continuous power source (e.g., UEs using small rechargeable and single-coin batteries). In vertical use cases, sensors and actuators are widely deployed for monitoring, measurement, charging, etc. Typically, their batteries are non-rechargeable and expected to last for at least several years. Currently, UEs need to be periodically woken up once per discontinuous reception (DRX) cycle, which dominates power consumption during periods without signaling or data traffic. Power consumption can be significantly reduced if UEs can only be woken up when they are addressed, for example, by paging. This can be achieved by using a wake-up signal to trigger or wake up the UE's main radio. The UE's individual receiver can have the ability to monitor the wake-up signal with ultra-low power. The main radio is used for downlink reception as well as uplink transmission. The main radio is also responsible for cell (re)selection evaluation to ensure, for example, that the UE camps on the optimal cell. The main radio can be set to different power states, such as sleep mode. Summary of the Invention

[0004] In a first aspect of this disclosure, a first apparatus is provided. The first apparatus includes: 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: determine the power state of a master radio of the first apparatus; and indicate the determined power state of the master radio to a second apparatus.

[0005] In a second aspect of this disclosure, a second device is provided. The second device includes: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second device to: receive from a first device an indication of the power status of the main radio of the first device.

[0006] In a third aspect of this disclosure, a method is provided. The method includes: determining the power state of a master radio of a first device; and instructing a second device on the determined power state of the master radio.

[0007] In a fourth aspect of this disclosure, a method is provided. The method includes receiving from a first device an indication of the power status of a main radio of the first device.

[0008] In a fifth aspect of this disclosure, a first apparatus is provided. The first apparatus includes: components for determining the power state of a master radio of the first apparatus; and components for instructing a second apparatus on the determined power state of the master radio.

[0009] In a sixth aspect of this disclosure, a second device is provided. The second device includes components for receiving an indication of the power status of the main radio of the first device from the first device.

[0010] In a seventh aspect of this disclosure, a computer-readable medium is provided. The computer-readable medium includes instructions stored thereon, which, when executed, cause a device to perform at least the method according to a third or fourth aspect.

[0011] It should be understood that the summary portion is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0012] Some exemplary embodiments will now be described with reference to the accompanying drawings, in which: Figure 1 An example communication environment in which example embodiments of this disclosure may be implemented is shown; Figure 2 An example block diagram of a first device having a main radio and a wake-up receiver is shown; Figure 3 An example signaling stream is shown for a power state indication of the main radio of a first device according to some example embodiments of the present disclosure; Figure 4 Another example signaling stream is shown, illustrating the power status indication of a primary radio according to some example embodiments of this disclosure; Figure 5 A flowchart is shown illustrating a method implemented at a first device according to some exemplary embodiments of the present disclosure; Figure 6 A flowchart is shown illustrating a method implemented at a second device according to some example embodiments of the present disclosure; Figure 7 A flowchart is shown illustrating a method implemented at a first device according to some exemplary embodiments of the present disclosure; Figure 8 A flowchart is shown illustrating a method implemented at a second device according to some example embodiments of the present disclosure; Figure 9 A simplified block diagram of a device suitable for implementing example embodiments of the present disclosure is shown; and Figure 10 A block diagram of an example computer-readable medium according to some example embodiments of the present disclosure is shown.

[0013] In all the accompanying drawings, the same or similar reference numerals denote the same or similar elements. Detailed Implementation

[0014] The principles of this disclosure will now be described with reference to some exemplary embodiments. It should be understood that these embodiments are described for illustrative purposes only and to assist those skilled in the art in understanding and implementing this disclosure, and do not imply any limitation on the scope of this 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 same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0016] References to "an embodiment," "embodiment," "example embodiment," etc., in this disclosure indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment must include that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Additionally, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is believed that incorporating other embodiments, whether explicitly described or not, to affect such a feature, structure, or characteristic is within the knowledge of those skilled in the art.

[0017] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of the exemplary embodiments, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. 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 the following: ” and “at least one of ” and similar wording (where the list of two or more elements is connected by “and” or “or”) means at least any one of the elements, or at least any two or more of the elements, or at least all of the elements.

[0019] As used herein, unless explicitly stated otherwise, the “responding to A” execution step does not indicate that the step must be performed immediately after “A” occurs, and one or more intermediate steps may be included.

[0020] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that, when used herein, the terms “comprising,” “including,” “having,” “having,” “containing,” and / or “comprising” specify the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0021] As used in this application, the term "circuit system" may refer to one or more or all of the following: (a) Hardware circuit implementation only (such as implementation only in analog and / or digital circuit systems) and (b) A combination of hardware circuitry and software, such as (if applicable): (i) A combination of analog and / or digital hardware circuitry with software / firmware, and (ii) Any part of a hardware processor with software (including digital signal processors, software, and memory, which work together to enable devices such as mobile phones or servers to perform various functions), and (c) Hardware circuitry and / or processors, such as microprocessors or parts thereof, that require software (e.g., firmware) to operate, but which may not exist when no software is required to operate.

[0022] This definition of circuit system applies to all uses of the term in this application (including in any claim). As another example, as used in this application, the term circuit system also covers implementations of hardware circuitry or processors (or processors) or portions thereof and their accompanying software and / or firmware. The term circuit system also covers, for example and if applicable to a particular claim element, baseband integrated circuits or processor integrated circuits for mobile devices or similar integrated circuits in servers, cellular network devices or other computing or network devices.

[0023] As used herein, the term "communication network" refers to a network that conforms to any suitable communication standard, such as 6G, New Radio (NR), Long Term Evolution (LTE), LTE-A Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. Furthermore, communication between terminal devices and network devices in a communication network can be performed according to any suitable generation of communication protocol, including 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 any other currently known or future-developed protocols. Embodiments of this disclosure can be applied to a variety of communication systems. Given the rapid development of communications, there will certainly be future types of communication technologies and systems that embody the future types of this disclosure. The scope of this disclosure should not be construed as limited to the aforementioned systems.

[0024] As used herein, the term "network device" refers to a node in a communications network through which terminal devices access the network and receive services. Depending on the terminology and technology applied, a network device can refer to a base station (BS) or access point (AP), such as a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), an NR NB (also known as a gNB), a remote radio unit (RRU), a radio head (RH), a remote radio head (RRH), a repeater, an integrated access and backhaul (IAB) node, a low-power node (such as a femtosecond or picosecond), a non-terrestrial network (NTN) or non-terrestrial network equipment (such as satellite network equipment), low Earth orbit (LEO) satellites and geostationary Earth orbit (GEO) satellites, spacecraft network equipment, etc. In some example embodiments, the radio access network (RAN) split architecture includes a centralized unit (CU) and a distributed unit (DU) at the IAB donor node. An IAB node consists of a mobile terminal (IAB-MT) portion and a DU portion. The mobile terminal (IAB-MT) portion behaves like a UE towards the parent node, while the DU portion behaves like a base station towards the next-hop IAB node.

[0025] The term "terminal device" refers to any terminal device capable of wireless communication. By way of example and not limitation, a terminal device may also be referred to as a communication device, user equipment (UE), subscriber station (SS), portable subscriber station, mobile station (MS), or access terminal (AT). Terminal devices may include, but are not limited to, mobile phones, cellular phones, smartphones, Voice over IP (VoIP) phones, wireless local loop phones, tablets, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback devices, in-vehicle wireless terminal devices, wireless endpoints, mobile stations, laptop embedded devices (LEEs), laptop mounted devices (LMEs), USB dongles, smart devices, wireless customer premises equipment (CPEs), Internet of Things (IoT) devices, watches or other wearable devices, 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, etc. The terminal device may also correspond to the mobile terminal (MT) portion of an IAB node (e.g., a relay node). In the following description, the terms "terminal device," "communication device," "terminal," "user equipment," and "UE" are used interchangeably.

[0026] As used herein, the terms “resource,” “transmission resource,” “resource block,” “physical resource block” (PRB), “uplink resource,” or “downlink resource” can refer to any resource used to perform communication, such as communication between a terminal device and a network device, including resources in the time domain, frequency domain, spatial domain, code domain, or any other resources used to implement communication. In the following, unless explicitly stated otherwise, resources in the frequency and time domains will be used as examples of transmission resources used to describe some exemplary embodiments of this disclosure. Note that the exemplary embodiments of this disclosure are equally applicable to other resources in other domains.

[0027] As mentioned above, energy efficiency is critical for UEs without a continuous power source (e.g., UEs using small rechargeable and single-coin batteries). In some mechanisms, a wake-up signal (WUS) (also known as low-power WUS, or LP-WUS) can be applied to trigger (e.g., wake up) the device's main radio (MR). A separate receiver, such as the device's low-power (LP) wake-up receiver (WUR), can have the capability to monitor the wake-up signal at ultra-low power. The MR is used for downlink reception, including, for example, transmitting and receiving synchronization signal blocks (SSBs) / system information / paging / data / control signaling, and for uplink transmission, including, for example, data and control signaling transmission. The MR is also responsible for cell (re)selection evaluation to ensure, for example, that the UE camps on the optimal cell. The MR can be configured with different power states. For example, the MR can be turned off or set to (deep) sleep unless it is turned on.

[0028] In some mechanisms, whether a device's MR enters sleep mode or not, if the entry conditions for using LP-WUS are met, depends on the UE's implementation. For example, whether the UE's MR enters ultra-deep sleep, deep sleep, or not at all depends on the UE's implementation. However, the network (NW) is unaware of the MR's power state, such as sleep mode or normal mode. Furthermore, the NW cannot know how these different power states affect system performance.

[0029] To address at least some of the aforementioned problems or other potential problems, a power status indication solution is proposed. According to embodiments of this disclosure, a first device, such as a terminal device, determines the power status of its master radio. For example, the power status may be a sleep mode or a non-sleep mode. The first device indicates the determined power status of the master radio to a second device, such as a network device. In this way, the second device, such as the network device, can know the power status of the master radio of the first device. For example, the power status may be a specific type of sleep mode. Therefore, the second device can know the sleep mode of the master radio.

[0030] Figure 1 An example communication environment 100 in which exemplary embodiments of the present disclosure can be implemented is shown. In the communication environment 100, a plurality of communication devices, including a first device 110 and a second device 120, can communicate with each other.

[0031] exist Figure 1 In the example, the first device 110 may include a terminal device, and the second device 120 may include a network device serving the terminal device. The service area of ​​the second device 120 may be referred to as cell 102.

[0032] It should be understood that Figure 1The number of devices and their connections shown are for illustrative purposes only and do not imply any limitation. Communication environment 100 may include any suitable number of devices configured to implement the exemplary embodiments of this disclosure. Although not shown, it should be understood that one or more additional devices may be located in cell 102, and one or more additional cells may be deployed in communication environment 100. Note that although the second device 120 is shown as a network device, the second device 120 may be another device besides a network device. Although the first device 110 is shown as a terminal device, the first device 110 may be another device besides a terminal device.

[0033] In the following description, for illustrative purposes, some exemplary embodiments are described in which the first device 110 operates as a terminal device and the second device 120 operates as a network device. However, in some exemplary embodiments, the operations described in connection with the terminal device can be implemented at the network device or other devices, and the operations described in connection with the network device can be implemented at the terminal device or other devices.

[0034] In some example embodiments, if the first device 110 is a terminal device and the second device 120 is a network device, the link from the second device 120 to the first device 110 is referred to as a downlink (DL), and the link from the first device 110 to the second device 120 is referred to as 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 an RX device (or receiver).

[0035] Communication in communication environment 100 can be implemented according to any suitable communication protocol, including but not limited to cellular communication protocols such as first-generation (1G), second-generation (2G), third-generation (3G), fourth-generation (4G), fifth-generation (5G), and sixth-generation (6G), wireless local network communication protocols such as IEEE 802.11, and / or any other currently known or future-developed protocols. Furthermore, communication can utilize any suitable wireless communication 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 Multiple Access (OFDM), Discrete Fourier Transform Extended OFDM (DFT-s-OFDM), and / or any other currently known or future-developed technologies.

[0036] In some example embodiments, the first device 110 includes a master radio and a wake-up receiver, such as LP-WUR (LR). Figure 2An example block diagram of a first device 110 is shown, having a master radio 210 (e.g., an NR transceiver) and an LP-WUR 220 (also known as an LP-WUR receiver). The LP-WUR 220 can monitor WUS 230 from a network such as a second device 120.

[0037] In some embodiments, the LP-WUR 220 can operate with very low power consumption in an always-on manner. For example, the LP-WUR 220 can monitor the WUS 230 during idle / inactive and connected modes. By applying a simple WUS 230 and using dedicated hardware for its monitoring, the LP-WUR 220 can consume significantly less power compared to the main radio 210. For example, the LP-WUR 220 can be either solely or configured to receive the WUS 230.

[0038] In some example embodiments, a second device 120, such as a network device, can trigger the first device 110 to wake up in an event-driven manner when needed by sending a specific WUS 230 to the first device 110. The WUS 230 can be monitored by an LP-WUR 220 (e.g., an ultra-low power receiver). In response to receiving the WUS 230, the LP-WUR 220 can trigger the wake-up of a normal NR transceiver and can begin communication / normal operation. For example, the LP-WUR 220, such as an ultra-low power receiver, wakes up the main radio 210. Therefore, the main radio 210 can switch to an on state or a sleep-free mode. Otherwise, the main radio 210 can be turned off or kept in a sleep mode, such as a deep sleep mode or an ultra-deep sleep mode.

[0039] As used herein, the power states of the main radio 210 may be referred to as the off state, on state, sleep mode, a specific sleep mode among multiple different sleep modes, or no sleep mode. As used herein, the term "no sleep mode" may refer to the power state or mode in which the main radio 210 of the first device 110 performs channel monitoring and channel measurements. "No sleep mode" may also be referred to as "normal mode" or "on state." Channel monitoring may refer to Physical Downlink Control Channel (PDCCH) monitoring, Physical Downlink Shared Channel (PDSCH) monitoring, or any other suitable monitoring. Examples of channel measurements may include, but are not limited to, Radio Resource Management (RRM) measurements, Radio Link Monitoring (RLM) measurements, Beam Failure Detection (BFD) measurements, Channel State Information (CSI) measurements, Beam Management (BM) measurements, etc.

[0040] As used herein, the term "deep sleep mode" can refer to a power state or mode in which the main radio 210 of the first device 110 performs channel measurements without channel monitoring. For example, in deep sleep mode, the main radio 210 may perform RRM / RLM / BFD / CSI / BM measurements. As used herein, the term "ultra-deep sleep mode" can refer to a power state or mode in which the main radio 210 of the first device 110 does not perform any channel monitoring or channel measurements. In ultra-deep sleep mode, the main radio 210 is turned off. For example, ultra-deep sleep can be entered when predefined conditions are met (e.g., the quality of the CSI-reference signal (RS), LP search space (SS), and / or SSB is better than a threshold). As used herein, the terms "ultra-deep sleep mode" and "deep sleep mode" may be used individually or collectively as "sleep mode".

[0041] Several power states of the master radio 210 have been described. In some example embodiments, if the entry conditions of LP-WUR 220 for monitoring WUS 230 are met, the first device 110 may determine, based on its implementation, whether to switch the master radio 210 to a deep sleep mode, an ultra-deep sleep mode, or a sleep-free mode. By switching the master radio 210 between different power states, power savings can be achieved for the first device 110. Such entry conditions may include, for example, a predetermined inactivity period in communication.

[0042] As discussed, according to various embodiments of this disclosure, the first device indicates the power status of the master radio 210 of the first device 110 to the second device 120. In this way, the network can know the power status of the master radio 210. Figure 3 An example signaling flow 300 for power state indication according to some example embodiments of this disclosure is shown. For discussion purposes, reference will be made to... Figure 1 For example, signaling flow 300 is described by using first device 110 and second device 120.

[0043] In operation, the first device 110 determines (310) the power state of the main radio 210 of the first device 110. The determined power state can be a sleep mode or a sleep-free mode. The sleep mode of the main radio 210 can be one of several different sleep modes. For example, the multiple sleep modes can include, but are not limited to, a deep sleep mode, a super deep sleep mode, etc.

[0044] The first device 110 indicates the determined power status of the master radio to the second device 120. For example, the first device 110 sends (320) an indication of the power status to the second device 120. The second device 120 receives (330) the indication. As used herein, the indication of the power status may be referred to as a "power status indication".

[0045] Alternatively or additionally, in some example embodiments, the first device 110 may determine (310) one of a plurality of different sleep modes of the master radio 210. The first device 110 may indicate the determined sleep mode of the master radio 210 to the second device 120. As used herein, the indication of the sleep mode may be referred to as a “sleep mode indication”.

[0046] In some example embodiments, the first device 110 may be configured with a WUS, such as WUS 230. In some example embodiments, if WUS monitoring conditions are met, the first device 110 may initiate WUS monitoring and determine (310) a sleep mode for the main radio 210 among multiple sleep modes. The first device 110 may cause the main radio 210 to enter the determined sleep mode, wherein the power of the first device 110 may be conserved. The first device 110 may indicate the selected sleep mode to the second device 120.

[0047] Alternatively or additionally, if the WUS monitoring conditions are no longer met, the first device 110 may stop WUS monitoring and determine (310) to switch the main radio 210 to sleep-free mode. The main radio 210 of the first device 110 can thus enter sleep-free mode. The first device 110 may also indicate sleep-free mode to the second device 120.

[0048] In some example embodiments, the first device 110 may include a master radio and a wake-up receiver, such as Figure 2 The primary radio 210 and LP-WUR 220 are included. LP-WUR 220 can monitor wake-up signal 230. Monitoring WUS 230 may include monitoring one or more WUS transmitted to the primary device 110 by the second device 120 according to WUS configuration. Alternatively, in some example embodiments, WUS 230 may be monitored by the primary radio 210 or by another receiver of the primary device 110.

[0049] In some example embodiments, the determined power state is applied by the master radio 210 when a predetermined event occurs at the first device 110. In example embodiments, the predetermined event may include a network connectivity failure of the first device 110. As examples, a failure may be a random access failure, a handover failure, a radio link failure (RLF), a connection establishment or reconstruction failure, a cross-radio access technology (RAT) RLF, etc. It should be understood that a network connectivity failure of the first device 110 can be any suitable failure, such as a predefined failure type or a configured failure type. The scope of this disclosure is not limited thereto.

[0050] In another example embodiment, the predetermined event may include at least one WUS, such as WUS 230 monitored by the first device 110. For example, the first device 110 may be configured to monitor WUS 230. A wake-up receiver of the first device 110 (such as LP-WUR 220) may monitor WUS 230.

[0051] In another example embodiment, the predetermined event may include at least one measurement result recorded by the first device 110. For example, the first device 110 may be configured to record or document measurement results.

[0052] Several predetermined events have been described. It should be understood that the example events are for illustrative purposes only and do not imply any limitation. Any suitable predetermined event may be applied. The scope of this disclosure is not limited thereto.

[0053] In some example embodiments, if a predetermined event occurs, the first device 110 may send an indication (320) to the second device 120. This indication may indicate the power state of the main radio 210 at the time the predetermined event occurs. Alternatively or additionally, the indication may indicate that the predetermined event occurs when the main radio 210 is in a power state. For example, if a fault occurs while the main radio 210 is in a specific sleep mode, the first device 110 may indicate to the second device 120 that the main radio 210 was in a specific sleep mode when the fault occurred. For another example, if a measurement log is recorded or logged while the main radio 210 is in a specific sleep mode, the first device 110 may indicate to the second device 120 that a measurement log was recorded while the main radio 210 was in a specific sleep mode. For another example, if WUS 230 has been, is being, or will be monitored by first device 110 (e.g., by LP-WUR 220 of first device 110) when main radio 210 is, is being, or will be in a specific sleep mode, then first device 110 may indicate the specific sleep mode to second device 120. As some examples, this indication may be sent before, during, or after monitoring WUS 230.

[0054] Alternatively or additionally, in some example embodiments, the first device 110 may be configured to send (320) an indication of power status. For example, the second device 120 may send a configuration for sending the indication to the first device 110. In response to receiving the configuration, the first device 110 may indicate the power status to the second device 120.

[0055] In some example embodiments, the second device 120 may send configuration information indicating a power state to the first device 110. The first device 110 may receive the configuration information. In some example embodiments, in response to receiving the configuration information, the first device 110 may send (320) a power state indication based on the configuration information. Alternatively or otherwise, in some example embodiments, the configuration information may indicate a sleep mode indication. In response to receiving such configuration information, the first device 110 may send (320) a sleep mode indication to the second device 120 based on the configuration information.

[0056] In some example embodiments, power state indication and / or sleep mode indication may be included in any suitable signaling or message. In some example embodiments, the signaling or message for power state indication or sleep mode indication may be indicated by configuration information. For example, the configuration information may indicate that the power state can be indicated in the information of the first device 110 (such as UE information) or the auxiliary information of the first device 110 (such as UE auxiliary information). For another example, the configuration information may indicate that the power state can be indicated, such as a radio resource control message, a medium access control (MAC) control element (CE), a physical layer (PHY) level message (such as uplink control information), or any other suitable message or signaling.

[0057] In another example, the configuration information may indicate that power status can be indicated in a measurement report or measurement log. The measurement report or log may be associated with measurement results obtained by the main radio 210 or the LP-WUR 220. In such a case, the indication may specify whether the associated measurement results were obtained when the main radio 210's power status was in sleep mode or sleep-free mode, or when the main radio 210's power status was in ultra-deep sleep mode or deep sleep mode. Alternatively or additionally, the indication may specify whether the measurement results were obtained by the main radio 210 or the LP-WUR 220.

[0058] It should be understood that the signaling or messages described herein for indication purposes are for illustrative purposes only and do not imply any limitation. In some example embodiments, the first device 110 may determine to use any one or more of the aforementioned signaling or messages for indication in the absence of configuration information from the second device 120. For example, the signaling or messages used for indication may be specified or determined based on the implementation of the first device 110.

[0059] As described above, in some example embodiments, power status can be indicated in the measurement report or measurement log. Indicating power status in the measurement report or measurement log may result in no additional wake-up power consumption for sending the indication.

[0060] As used herein, the term "measurement report" can refer to information or a message that includes the results of a measurement reported to the second device 120. A measurement report can be associated with an instantaneous channel measurement, such as an instantaneous MDT. As used herein, the term "measurement" can be a measurement of a channel and therefore can be referred to as a "channel measurement." As an example measurement, the first device 110 can measure the received power of a reference signal of the channel. This measurement can be referred to as a radio signal measurement or a radio channel measurement.

[0061] The measurement report may include at least one of the following: the power state of the master radio 210, the power state of the master radio 210 at the time when the channel measurement in the measurement log occurred, or the result of the channel measurement. In some example embodiments, the measurement report may include a channel measurement metric obtained by the master radio 210. In some example embodiments, the measurement report may include a channel measurement metric obtained by the LP-WUR 220. For example, if the channel measurement metric is less than or equal to a threshold, the measurement report may include a channel measurement metric obtained by the LP-WUR 220. The channel measurement metric may be signal quality (such as Reference Signal Received Quality (RSRQ)), signal power (such as Reference Signal Received Power (RSRP)), the detection rate of the WUS 230, the detection rate of the synchronization signal, etc. The threshold may be predefined or configured.

[0062] Examples of measurement or channel measurements may include, but are not limited to, RRM measurements, RLM measurements, BFD measurements, CSI measurements, BM measurements, Minimized Drive Test (MDT) related measurements, and Ad Hoc Network (SON) related measurements. In the following description, some example embodiments will be described where the channel measurement is an MDT-related measurement or a SON-related measurement. For example, the first device 110 may be configured with MDT-related measurements and / or SON-related measurements. Alternatively, in some example embodiments, for a first device 110 that supports or is configured with LP-WUS, the second device 120 may not be configured with conventional MDT and SON measurements for the first device 110.

[0063] It should be understood that these exemplary measurements are for illustrative purposes only and do not imply any limitations. The exemplary embodiments of this disclosure are applicable regardless of the MDT and / or SON.

[0064] As used herein, the term "measurement log" can refer to information or messages that include the results of channel measurements recorded or logged by the first device 110 and subsequently reported to the second device 120. The measurement log can be associated with recorded channel measurements, such as recorded MDTs.

[0065] In some example embodiments, if a measurement log including measurement results is recorded or documented, the first device 110 may send an indication (320) to the second device 120. In one example, the first device 110 may record the power state of the primary radio 210 in the measurement log. In another example, the first device 110 may record the power state of the primary radio 210 at the time the measurement results are obtained in the measurement log. For example, when the first device 110 records any MDT and / or SON-related measurements, the first device 110 may record whether the primary radio 210 is in sleep mode (and / or which sleep mode it is in) and report it along with the measurement. In yet another example, the first device 110 may record channel measurement metrics obtained by the LP-WUR 220 in the measurement log. These indications regarding power state or sleep mode may be added to the existing measurement log.

[0066] In some example embodiments, if the channel measurement metric is less than or equal to a threshold, the first device 110 may record the channel measurement metric in a measurement log. The channel measurement metric may be, for example, the signal quality of an RSRQ, the signal power of an RSRP, the detection rate of a WUS 230, the detection rate of a synchronization signal, etc. The threshold may be predefined or configured. By comparing the channel measurement metric with the threshold, less information can be sent in the measurement log, resulting in less power consumption.

[0067] In some example embodiments, the second device 120 may send a configuration for recording or logging measurement logs to the first device 110. In response to receiving the configuration for recording measurement logs, the first device 110 may record measurement logs based on that configuration. Alternatively or additionally, in some example embodiments, the first device 110 may be configured to record and report the power status or sleep mode of the main radio 210.

[0068] As described, the power status can be indicated to the second device 120 when the first device 110 experiences a network connectivity failure and / or when a measurement log is logged. In this way, the network may only require power status indication if a performance problem exists. Therefore, fewer transmissions or fewer wake-ups can be involved. Consequently, it can result in less power consumption.

[0069] In some example embodiments, the second device 120 may receive multiple measurement reports or measurement logs associated with multiple measurements. The first device 110 may indicate to the second device 120 whether the multiple measurements were obtained by the main radio 210 or the LP-WUR 220. The second device 120 may evaluate (340) the performance of the first device 110 based on a comparison between a first measurement result obtained by the main radio 210 and a second measurement result obtained by the LP-WUR 220. Additionally or alternatively, the second device 120 may evaluate (340) the performance of the first device 110 based on a comparison between a first measurement result obtained by the main radio 210 when it is in a sleep-free state and a second measurement result obtained by the main radio 210 when it is in a sleep state (such as a deep sleep state).

[0070] In some example embodiments, the first device 110 may indicate in NR SON or MDT-related measurement reports or logs which measurements were performed when the main radio 210 was in sleep mode and / or in which sleep mode. That is, the measurement reports or logs may include conventional and LP-WUR measurements. In this way, the second device 120 is able to know what measurements were and therefore can compare them.

[0071] Example embodiments regarding power state indication have been described. Using these example embodiments, the power state or sleep mode of a first device (such as a UE) can be notified to the network. In this way, the network can associate system performance problems with different power states or sleep modes, and therefore can take effective action against these system performance problems. For example, the network can identify whether more problems occur, for example, when using WUR.

[0072] To address at least some of the aforementioned or other potential problems, another solution regarding power status indication is proposed. According to embodiments of this disclosure, a first device, such as a terminal device, receives a configuration of a wake-up signal (WUS) to be monitored by a wake-up receiver of the first device from a second device, such as a network device. The first device sends at least one indication to the second device, indicating the power status of the primary radio of the first device while the wake-up receiver is monitoring the wake-up signal. In this way, the second network, such as the network device, can know the power status of the primary radio of the first device. For example, the power status could be a sleep mode. Therefore, the second device can know that the primary radio is in sleep mode.

[0073] Figure 4 An example signaling flow 400 for power state indication according to some example embodiments of this disclosure is shown. For discussion purposes, reference will be made to... Figure 1For example, signaling flow 400 is described using a first device 110 and a second device 120. In the following description, it is assumed that the first device 110 may include a main radio and a wake-up receiver, for example... Figure 2 The main radios in the series are the 210 and LP-WUR 220.

[0074] In operation, the second device 120 sends (410) a configuration of a WUS (such as WUS 230) to be monitored by the WUR (such as LP-WUR 220) of the first device 110. The first device 110 receives (420) the configuration.

[0075] The first device 110 sends (460) at least one indication to the second device 120, the at least one indication being used to indicate the power status of the main radio 210 being used while the LP-WUR 220 is monitoring the WUS 230. The second device 120 receives (470) the at least one indication.

[0076] In some example embodiments, at least one indication may include an indication of whether the power state of the main radio 210 is in sleep mode or sleep-free mode. In another example embodiment, at least one indication may include an indication of whether the power state of the main radio 210 is in ultra-deep sleep mode or deep sleep mode.

[0077] Alternatively or additionally, in some example embodiments, the first device 119 may perform (450) channel measurements. The at least one indication may be associated with the channel measurement. For example, the at least one indication may include an indication of whether the channel measurement was obtained when the power state of the main radio 210 was in sleep mode or sleep-free mode. For another example, the at least one indication may include an indication of whether the channel measurement was obtained when the power state of the main radio 210 was in ultra-deep sleep mode or deep sleep mode. As yet another example, the at least one indication may include an indication of whether the channel measurement was obtained by the main radio 210 or the LP-WUR 220.

[0078] Examples of channel measurements may include, but are not limited to, RRM measurements, RLM measurements, BFD measurements, CSI measurements, BM measurements, MDT-related measurements, SON-related measurements, etc. In the following description, some example embodiments will be described where the channel measurement is an MDT-related measurement or a SON-related measurement. For example, the first device 110 may be configured with MDT-related measurements and / or SON-related measurements. Alternatively, in some example embodiments, for a first device 110 that supports LP-WUS or is configured with LP-WUS, the second device 120 may not be configured with conventional MDT and SON measurements for the first device 110.

[0079] It should be understood that these example embodiments are for illustrative purposes only and do not imply any limitation. The example embodiments of this disclosure are applicable regardless of the MDT and / or SON.

[0080] In some example embodiments, at least one indication may be associated with a failure of the first device 110. For example, the at least one indication may include an indication of the power state of the main radio 210 at the time the failure of the first device 110 occurred. Examples of failures of the first device 110 may include, but are not limited to, random access failures, handover failures, RLFs, connection establishment or reconstruction failures, cross-RAT RLFs, etc. It should be understood that a failure of the first device 110 can be any suitable failure, such as a predefined failure type or a configured failure type. The scope of this disclosure is not limited thereto.

[0081] At least one example of an instruction has been described. It should be understood that these example instructions are for illustrative purposes only and do not imply any limitation. These instructions may be sent individually or in any suitable combination. Any suitable instructions may be applied. The scope of this disclosure is not limited thereto.

[0082] In some example embodiments, the first device 110 may send (460) at least one indication to the second device 120 under certain conditions. In an example embodiment, the first device 110 may detect the triggering of a wake-up signal for monitoring the LP-WUR 220, the monitoring being based on a received configuration. The first device 110 may switch the power state of the main radio 210 to sleep mode. In response to switching the power state to sleep mode, the first device 110 may send (460) at least one indication to the second device 120. In other words, the first device 110 may send (460) the at least one indication to the second device 120 based on the fact that the power state of the main radio 210 is in sleep mode.

[0083] Alternatively or additionally, in some embodiments, if a fault occurs in the first device 110 (such as a random access fault, handover fault, RLF, (re)connection establishment fault, RAT RLF, or any other suitable fault), the first device 110 may send (460) the at least one indication to the second device 120. In such cases, the at least one indication may indicate the power status of the master radio 210 at the time of the fault.

[0084] In some example embodiments, the second device 120 may send (430) configuration information to the first device 110 for sending at least one indication. The first device 110 may receive (440) the configuration information. In some example embodiments, in response to receiving (440) the configuration information, the first device 110 may send (460) at least one indication based on the configuration information.

[0085] In some example embodiments, the configuration information may indicate signaling or messages used to send at least one indication. For example, the configuration information may indicate that at least one indication may be included in information of the first device 110 (such as UE information) or auxiliary information of the first device 110 (such as UE auxiliary information). In another example, the configuration information may indicate that the at least one indication may be included in a message, such as a radio resource control message, MAC CE, PHY-level message (such as uplink control information), or any other suitable message or signaling.

[0086] For another example, configuration information may indicate that at least one indication can be included in a measurement report or measurement log. The measurement report or log may be associated with channel measurements obtained by the main radio 210 or the LP-WUR 220. In such cases, the at least one indication may indicate whether the associated channel measurement was obtained when the main radio 210's power state was in sleep mode or sleep-free mode, or when the main radio 210's power state was in ultra-deep sleep mode or deep sleep mode. Alternatively or additionally, the at least one indication may indicate whether the channel measurement was obtained by the main radio 210 or by the LP-WUR 220.

[0087] It should be understood that these example signaling or messages used for at least one indication are for illustrative purposes only and do not imply any limitation. In some example embodiments, the first device 110 may determine to use any one or more of the aforementioned signaling or messages for at least one indication in the absence of configuration information from the second device 120. For example, the signaling or message used for at least one indication may be specified or determined based on the implementation of the first device 110.

[0088] As described above, in some example embodiments, at least one indication may be included in the measurement report or measurement log. Including at least one indication in the measurement report or measurement log may result in no additional wake-up power consumption for sending at least one indication.

[0089] As used herein, the term "measurement report" can refer to information or a message that includes the results of channel measurements reported to the second device 120. Measurement reports can be associated with real-time channel measurements such as instantaneous MDT.

[0090] The measurement report may include at least one of the following: the power state of the primary radio 210, the power state of the primary radio 210 at the time when the channel measurement in the measurement log occurred, or the result of the channel measurement. In some example embodiments, the measurement report may include a channel measurement metric obtained by the LP-WUR 220. For example, if the channel measurement metric is less than or equal to a threshold, the measurement report may include a channel measurement metric obtained by the LP-WUR 220. The channel measurement metric may be a signal quality such as RSRQ, a signal power such as RSRP, the detection rate of the WUS 230, the detection rate of the synchronization signal, etc. The threshold may be predefined or configured.

[0091] As used herein, the term "measurement log" can refer to information or messages that include the results of channel measurements recorded or logged by the first device 110 and subsequently reported to the second device 120. The measurement log can be associated with recorded channel measurements, such as recorded MDTs.

[0092] In some example embodiments, if a measurement log is recorded, the first device 110 may send (460) at least one indication to the second device 120. In one example, the first device 110 may record the results of a channel measurement in the measurement log. In another example, the first device 110 may record the power state of the primary radio 210 in the measurement log. In yet another example, the first device 110 may record the power state of the primary radio 210 at the time the channel measurement occurred in the measurement log. For example, when the first device 110 records any MDT and / or SON-related measurements, the first device 110 may record whether the primary radio 210 is in sleep mode and report it along with the measurement. In yet another example, the first device 110 may record channel measurement metrics obtained by the LP-WUR 220 in the measurement log. These indications regarding power state or sleep mode may be added to an existing measurement log.

[0093] In some example embodiments, if the channel measurement metric is less than or equal to a threshold, the first device 110 may record the channel measurement metric in a measurement log. The channel measurement metric may be, for example, the signal quality of an RSRQ, the signal power of an RSRP, the detection rate of a WUS 230, the detection rate of a synchronization signal, etc. The threshold may be predefined or configured. By comparing the channel measurement metric with the threshold, less information can be sent in the measurement log, resulting in less power consumption.

[0094] In some example embodiments, the second device 120 may send a configuration for recording measurement logs to the first device 110. In response to receiving the configuration for recording measurement logs, the first device 110 may record measurement logs based on that configuration. Alternatively or additionally, in some example embodiments, the first device 110 may be configured to record and report the power status or sleep mode of the main radio 210.

[0095] An example embodiment has been described regarding the recording of fault and / or measurement logs based on the first device 110 to send at least one indication. In this way, the network may only require at least one indication if a performance problem exists. Therefore, fewer transmissions or fewer wake-ups can be involved. Consequently, it can result in less power consumption.

[0096] In some example embodiments, the second device 120 may receive multiple measurement reports or measurement logs associated with multiple channel measurements. At least one indication may be used to indicate whether the multiple channel measurements were obtained by the main radio 210 or the LP-WUR 220. The second device 120 may evaluate (480) the performance of the first device 110 based on a comparison between a first channel measurement obtained by the main radio 210 and a second channel measurement obtained by the LP-WUR 220. Additionally or alternatively, the second device 120 may evaluate (480) the performance of the first device 110 based on a comparison between a first measurement obtained by the main radio 210 when it is in a sleep-free state and a second measurement obtained by the main radio 210 when it is in a sleep state (such as a deep sleep state).

[0097] In some example embodiments, the first device 110 may indicate in NR SON or MDT-related measurement reports or logs which measurements were performed when the main radio 210 was in sleep mode and / or in which sleep mode. That is, the measurement reports or logs may include conventional and LP-WUR measurements. In this way, the second device 120 is able to know what measurements were and therefore can compare them.

[0098] Example embodiments regarding power state indication have been described. Using these example embodiments, the power state or sleep mode of a first device (such as a UE) can be notified to the network. In this way, the network can associate system performance problems with different power states or sleep modes, and therefore can take effective action against these system performance problems. For example, the network can identify whether more problems occur, for example, when using WUR.

[0099] In some example embodiments, the power status indication may be associated with an idle mode (such as RRC_IDLE mode), an inactive mode (such as RRC_INACTIVE mode), or a connected mode (such as RRC_CONNECTED mode). For example, the first device 110 may be in an idle or inactive mode or a connected mode. If the first device 110, while in an idle or inactive mode or a connected mode, switches the power status or sleep mode of the main radio 210, the first device 110 may send at least one indication to the second device 120. If a failure occurs in the first device 110 during an idle or inactive mode or a connected mode, or if measurement logs associated with these modes are logged, the first device 110 may send at least one indication to the second device 120. Details regarding power status switching or sleep mode switching in idle or inactive modes or connected modes will be described.

[0100] For a first device 110 in idle or inactive mode or connected mode, sending (460) at least one indication allows the network to know whether the first device 110 is monitoring WUS via LP-WUS 220 or main radio 210. In this way, when the first device 110 is monitoring LP-WUS, the network can simply send LP-WUS. This reduces resource consumption. When LP-WUS is not sent, if another device, such as another UE in the same group as the first device 110 (which may also be referred to as the target paging UE), monitors LP-WUS, the first device may not be woken up due to false wake-up. In this way, the false wake-up rate can be reduced.

[0101] Using LP-WUS / WUR, the primary receiver 210 of the first device 110 can enter a deep sleep state. This deep sleep state can be entered when predefined conditions are met (e.g., the quality of LP-SS and / or SSB is better than a threshold). However, operations similar to mobile station-initiated communication-only (MICO) (where downlink and RRM monitoring cease until subsequent uplink transmissions occur) are not feasible with LP-WUS / WUR. This is likely because the point of having an LP-WUS / Wake-up receiver is to reduce the power consumption of the first device 110 while maintaining some downlink monitoring functions. This would not be possible if the first device 110 stopped monitoring in the downlink or if the first device 110 did not detect that it had moved to a new cell / area and therefore applied incorrect configurations to downlink monitoring.

[0102] The functions supported via the Uu interface in RRC_IDLE and RRC_INACTIVE can include Public Land Mobile Network (PLMN) selection, System Information (SI) reception, cell reselection mobility, and paging. Therefore, it is feasible to introduce LP-WUS / WUR as a power-saving feature for the RRC_IDLE and RRC_INACTIVE states, and it is also feasible to introduce a deep sleep state as a power-saving state for the RRC_IDLE and RRC_INACTIVE states.

[0103] Paging reception in RRC_IDLE and RRC_INACTIVE supports discontinuous reception (DRX) and extended DRX (eDRX) from versions 17 and 18, respectively. The LP-WUS / WUR function for WUR monitoring of LP-WUS can also be supported with or without duty cycle operation, i.e., as 'continuous' or as 'duty cycle'. Since the LP-WUS / WUR feature was introduced to reduce the power consumption of the first device 110, it is feasible to introduce support for the LP-WUR option, which can lead to a reduction in the power consumption of the first device 110.

[0104] Currently, paging monitoring in RRC_IDLE / RRC_INACTIVE modes is based on the configured idle DRX (I-DRX), and the Early Paging Indicator (PEI) is also designed with a 'duty cycle' associated with the traditional PO. The specification impact of 'continuous' and 'duty cycle' depends on the detailed design. A potential benefit of continuity is shorter downlink latency. That is, because the UE continuously monitors the downlink, downlink latency may be shorter.

[0105] In some embodiments, after being woken up via LP-WUS, a conventional paging monitoring process can be triggered for the primary receiver 210. That is, if the first device 110 detects LP-WUS, it will activate its primary receiver 210 to monitor conventional paging, i.e., PDCCH scheduling of paging messages on the PDSCH, and after first finding its own paging record in the paging messages, the first device 110 can determine that it is being paged. In this case, the downlink latency will be determined by the periodicity of the conventional paging opportunity (PO).

[0106] In some cases, there may be no delay benefit compared to using 'duty cycle'. That is, even if LP-WUS is received immediately using 'continuous', the first device 110 may still need to wait for subsequent POs (i.e., possibly the same POs as when using 'duty cycle') anyway.

[0107] On the other hand, after being woken up by LP-WUS, if the primary receiver 210 is configured by the network and supported by the first device 110, the primary receiver 210 can also monitor the legacy PEI defined in version (Rel)-17. Particularly for cases where LP-WUS does not have complete coverage compared to legacy signaling (e.g., SSB), the primary receiver 210 needs to be woken up to perform legacy operations outside the LP-WUS coverage area. In this case, the network can still configure the PEI to use a fallback mechanism to save power consumption of the first device 110 for paging monitoring. This means that the network can configure and send LP-WUS and PEI for the first device 110, especially when the network is unaware that the first device 110 is entering / leaving LP-WUS monitoring. From the perspective of the first device 110, if both LP-WUS and PEI are configured, LP-WUS can be used in conjunction with PEI to achieve further power saving gains.

[0108] Similar to RRC_IDLE / RRC_INACTIVE, there are two mechanisms for monitoring LP-WUS in RRC_CONNECTED (i.e., "continuous" and "duty cycle" modes). For "continuous," LP-WUS is monitored continuously in time, while for "duty cycle," LP-WUS is monitored based on a defined duty cycle, similar to the DRX mechanism. The WUS configuration can indicate whether WUS monitoring should be performed based on the "continuous" or "duty cycle" approach. A lower latency is expected for the continuous approach than for the duty cycle approach, but both solutions will have the same lower latency limit as the MR (Master Radio) transition time as described above, and the duty cycle length for "duty cycle" will be defined or configured based on downlink latency requirements in the same way as with traditional connected DRX (C-DRX). Therefore, any performance comparison of these two LP-WUS monitoring mechanisms, or any choice between them, should be based on downlink latency requirements.

[0109] As described above, in order to save power consumption of the first device 110 used for PDCCH monitoring and to ensure latency, the basic design is as follows: when the main radio 210 is in sleep mode, the LP-WUS 220 can remain active to monitor the LP-WUS. When the LP-WUS 220 receives the LP-WUS, it triggers the main radio 210 to wake up and monitor the PDCCH.

[0110] The first device 110, in idle, inactive, or connected mode, sends at least one indication to the second device 120. Therefore, the network can determine the power status or sleep mode of the main radio 210. The network can also determine whether the first device 110 is monitoring the WUS via LP-WUS 220 or the main radio 210. In this way, when the first device 110 is monitoring LP-WUS, the network can simply send LP-WUS, thus reducing resource consumption. When no LP-WUS is sent, another device (such as another UE monitoring LP-WUS, belonging to the same group as the first device 110 (the first device 110 can also be referred to as the target paging UE) may not wake up the first device due to a false wake-up. In this way, the false wake-up rate can be reduced.

[0111] Figure 5 A flowchart of an example method 500 implemented at a first device according to some example embodiments of the present disclosure is shown. For the purposes of discussion, [the following will be discussed]. Figure 1 Method 500 is described by the angle of the first device 110 in the middle.

[0112] In block 510, the first device 110 determines the power state of the primary radio of the first device.

[0113] In box 520, the first device 110 indicates the determined power status of the master radio to the second device.

[0114] In some example embodiments, the determined power state is applied by the master radio when a predetermined event occurs at the first device.

[0115] In some example embodiments, the predetermined event includes at least one of the following: a failure occurs in the network connection of the first device, at least one wake-up signal is detected by the first device, or at least one measurement result is recorded by the first device.

[0116] In some example embodiments, method 500 further includes: if it is determined that a predetermined event has occurred, instructing the second device to at least one of the following: power state, or the predetermined event occurring when the power state is applied by the main radio.

[0117] In some example embodiments, the power state is either a sleep mode or a non-sleep mode.

[0118] In some example embodiments, the power status indicates the sleep mode of the main radio among a number of different sleep modes.

[0119] In some example embodiments, method 500 further includes: recording at least one measurement result in a measurement log, the measurement log including at least one of the following: the power state of the main radio, or the power state of the main radio at the point in time when the at least one measurement result was obtained; and sending the measurement log to a second device.

[0120] In some example embodiments, method 500 further includes: if it is determined that the measured metric is less than or equal to a threshold, then recording the measured metric in a measurement log.

[0121] In some example embodiments, method 500 further includes receiving configuration from the second device for recording measurement logs.

[0122] In some example embodiments, method 500 further includes: receiving configuration information from the second device for indicating power status; and indicating power status to the second device based on the configuration information.

[0123] In some example embodiments, the configuration information indicating power status is indicated by at least one of the following: information of the first device, auxiliary information of the first device, radio resource control messages, media access control elements, uplink control information, measurement reports, or measurement logs.

[0124] Figure 6 A flowchart of an example method 600 implemented at a second device according to some example embodiments of the present disclosure is shown. For the purposes of discussion, [the following will be discussed]. Figure 1 Method 600 is described by the angle of the second device 120 in the middle.

[0125] In block 610, the second device 120 receives from the first device an indication of the power status of the main radio of the first device.

[0126] In some example embodiments, the indication is also used to indicate that a predetermined event occurs when the power state is applied by the main radio, the predetermined event including at least one of the following: a failure occurs in the network connection of the first device, at least one wake-up signal is detected by the first device, or at least one measurement result is recorded by the first device.

[0127] In some example embodiments, the power state is either a sleep mode or a non-sleep mode, and the sleep mode is one of several different sleep modes.

[0128] In some example embodiments, method 600 further includes sending configuration information to a first device for indicating a power state, the configuration information indicating that the power state is indicated by at least one of the following: information of the first device, auxiliary information of the first device, radio resource control message, medium access control element, uplink control information, measurement report, or measurement log.

[0129] In some example embodiments, method 600 further includes: evaluating the performance of the first device based on a comparison between a first measurement obtained by the master radio and a second measurement obtained by the wake-up receiver of the first device.

[0130] In some example embodiments, a first device capable of performing any method 500 (e.g., Figure 1 The first device 110 may include a component for performing the corresponding operation of method 500. This component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module. The first device may be implemented as or included in... Figure 1 In the first device 110.

[0131] In some example embodiments, the first device includes: a component for determining the power state of the primary radio of the first device; and a component for indicating the determined power state of the primary radio to a second device.

[0132] In some example embodiments, the determined power state is applied by the master radio when a predetermined event occurs at the first device.

[0133] In some example embodiments, the predetermined event includes at least one of the following: a failure occurs in the network connection of the first device, at least one wake-up signal is detected by the first device, or at least one measurement result is recorded by the first device.

[0134] In some example embodiments, the first device further includes a component for instructing the second device, if it is determined that a predetermined event has occurred, at least one of the following: a power state, or the predetermined event occurring when the power state is applied by the main radio.

[0135] In some example embodiments, the power state is either a sleep mode or a non-sleep mode.

[0136] In some example embodiments, the power status indicates the sleep mode of the main radio among a number of different sleep modes.

[0137] In some example embodiments, the first device further includes: a component for recording at least one measurement result in a measurement log, the measurement log including at least one of the following: the power state of the main radio, or the power state of the main radio at the point in time when at least one measurement result was obtained; and a component for transmitting the measurement log to the second device.

[0138] In some example embodiments, the measurement log also includes a measurement metric obtained by a wake-up receiver of the first device, and the first device further includes recording the measurement metric in the measurement log if it is determined that the measurement metric is below or equal to a threshold.

[0139] In some example embodiments, the first device further includes a component for receiving configurations for recording measurement logs from the second device.

[0140] In some example embodiments, the first device further includes: a component for receiving configuration information from the second device for indicating power status; and a component for indicating power status to the second device based on the configuration information.

[0141] In some example embodiments, the configuration information indicating power status is indicated by at least one of the following: information of the first device, auxiliary information of the first device, radio resource control messages, media access control elements, uplink control information, measurement reports, or measurement logs.

[0142] In some example embodiments, the first device further includes components for performing other operations in some example embodiments of method 500 or the first device 110. In some example embodiments, the components include: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first device to perform.

[0143] In some example embodiments, a second device capable of performing any method 600 (e.g., Figure 1 The second device 120 may include a component for performing the corresponding operation of method 600. This component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module. The second device may be implemented as or included in... Figure 1 The second device 120 in the middle.

[0144] In some example embodiments, the second device includes components for receiving an indication of the power status of the main radio of the first device from the first device.

[0145] In some example embodiments, the indication is also used to indicate that a predetermined event occurs when the power state is applied by the main radio, the predetermined event including at least one of the following: a failure occurs in the network connection of the first device, at least one wake-up signal is detected by the first device, or at least one measurement result is recorded by the first device.

[0146] In some example embodiments, the power state is either a sleep mode or a non-sleep mode, and the sleep mode is one of several different sleep modes.

[0147] In some example embodiments, the second device further includes a component for sending configuration information indicating a power state to the first device, the configuration information indicating that the power state is indicated by at least one of the following: information of the first device, auxiliary information of the first device, radio resource control message, medium access control element, uplink control information, measurement report, or measurement log.

[0148] In some example embodiments, the second device further includes a component for evaluating the performance of the first device based on a comparison between a first measurement obtained by the main radio and a second measurement obtained by the wake-up receiver of the first device.

[0149] In some example embodiments, the second device further includes components for performing other operations in some example embodiments of method 600 or the second device 120. In some example embodiments, the components include: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second device to perform.

[0150] Figure 7 A flowchart of an example method 700 implemented at a first device according to some example embodiments of the present disclosure is shown. For the purposes of discussion, [the following will be discussed]. Figure 1 Method 700 is described by the angle of the first device 110 in the middle.

[0151] At frame 710, the first device 110 receives from the second device a configuration for a wake-up signal to be monitored by the wake-up receiver of the first device.

[0152] At frame 720, the first device 110 sends at least one indication to the second device, the at least one indication being used to indicate the power status of the main radio of the first device when the wake-up receiver is monitoring the wake-up signal.

[0153] In some example embodiments, method 700 further includes: detecting the triggering of a wake-up signal for monitoring the wake-up receiver, the monitoring being based on the received configuration; switching the power state of the main radio to sleep mode; and in response to switching the power state to sleep mode, sending at least one indication to a second device.

[0154] In some example embodiments, at least one indication includes at least one of the following: an indication of whether the power state is in sleep mode or sleep-free mode; an indication of whether channel measurements are obtained when the power state is in sleep mode or sleep-free mode; an indication of whether the power state is in ultra-deep sleep mode or deep sleep mode; an indication of whether channel measurements are obtained when the power state is in ultra-deep sleep mode or deep sleep mode; an indication of whether channel measurements are obtained by the master radio or wake-up receiver; or an indication of what the power state of the master radio is at the point in time when the first device fails.

[0155] In some example embodiments, in sleep-free mode, the master radio performs channel monitoring and channel measurement; in deep sleep mode, the master radio performs channel measurement without channel monitoring; and in ultra-deep sleep mode, the master radio does not perform channel monitoring or channel measurement.

[0156] In some example embodiments, method 700 further includes: recording a measurement log that includes at least one of the following: the power state of the primary radio, the power state of the primary radio at the time point in time at which the channel measurement for the measurement log occurs, or the result of the channel measurement; and sending the measurement log to a second device.

[0157] In some example embodiments, method 700 further includes: if it is determined that the channel measurement metric is less than or equal to a threshold, then recording the channel measurement metric in a measurement log.

[0158] In some example embodiments, method 700 further includes: recording measurement logs based on a configuration received from a second device for recording measurement logs.

[0159] In some example embodiments, method 700 further includes: receiving configuration information from the second device for sending at least one indication; and sending at least one indication to the second device based on the configuration information.

[0160] In some example embodiments, the configuration information indicates at least one of the following: information of the first device, auxiliary information of the first device, radio resource control message, media access control element, uplink control information, measurement report, or measurement log.

[0161] In some example embodiments, method 700 further includes sending at least one indication to the second device based on at least one of the following: the power state of the main radio is in sleep mode, receiving configuration information for sending at least one indication, a measurement log being recorded, or a failure of the first device.

[0162] In some example embodiments, at least one indication is sent based on a fault of the first device, the fault including at least one of the following: random access fault, handover fault, radio link fault, connection establishment or reconstruction fault, or cross-radio access technology radio link fault, and at least one of the indications is used to indicate the power status of the main radio at the time the fault occurs.

[0163] Figure 8 A flowchart of an example method 800 implemented at a second device according to some example embodiments of the present disclosure is shown. For the purposes of discussion, [the following will be discussed]. Figure 1 Method 800 is described by the angle of the second device 120 in the middle.

[0164] At frame 810, the second device 120 sends a configuration to the first device for a wake-up signal to be monitored by the wake-up receiver of the first device.

[0165] At frame 820, the second device 120 receives at least one indication from the first device, the at least one indication being used to indicate the power status of the main radio of the first device when the wake-up receiver is monitoring the wake-up signal.

[0166] In some example embodiments, at least one indication includes at least one of the following: an indication of whether the power state is in sleep mode or sleep-free mode; an indication of whether channel measurements are obtained when the power state is in sleep mode or sleep-free mode; an indication of whether the power state is in ultra-deep sleep mode or deep sleep mode; an indication of whether channel measurements are obtained when the power state is in ultra-deep sleep mode or deep sleep mode; an indication of whether the channel measurements are obtained by the main radio or the wake-up receiver; or an indication of what the power state is at the point in time when the first device fails.

[0167] In some example embodiments, method 800 further includes sending configuration information to the first device for sending at least one indication.

[0168] In some example embodiments, the configuration information indicates at least one of the following: information of the first device, auxiliary information of the first device, radio resource control message, media access control element, uplink control information, measurement report, or measurement log.

[0169] In some example embodiments, method 800 further includes sending a configuration to a first device for recording a channel measurement log, the channel measurement log including at least one of the following: the power state of the primary radio, the power state of the primary radio at the time when the channel measurement in the measurement log occurred, the result of the channel measurement, or the channel measurement metric obtained by a wake-up receiver.

[0170] In some example embodiments, method 800 further includes evaluating the performance of the first device based on a comparison between a first channel measurement obtained by the master radio and a second channel measurement obtained by the wake-up receiver.

[0171] In some example embodiments, a first device capable of performing any method 700 (e.g., Figure 1 The first device 110 may include a component for performing the corresponding operation of method 700. This component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module. The first device may be implemented as or included in... Figure 1 In the first device 110.

[0172] In some example embodiments, the first device includes: a component for configuring to receive a wake-up signal to be monitored by a wake-up receiver of the first device from a second device; and a component for sending to the second device at least one indication of the power state of the main radio of the first device applied while the wake-up receiver is monitoring the wake-up signal.

[0173] In some example embodiments, the first device further includes: means for detecting the triggering of a wake-up signal for monitoring a wake-up receiver, the monitoring being based on a received configuration; means for switching the power state of the main radio to a sleep mode; and means for sending at least one indication to the second device in response to switching the power state to a sleep mode.

[0174] In some example embodiments, at least one indication includes at least one of the following: an indication of whether the power state is in sleep mode or sleep-free mode; an indication of whether channel measurements are obtained when the power state is in sleep mode or sleep-free mode; an indication of whether the power state is in ultra-deep sleep mode or deep sleep mode; an indication of whether channel measurements are obtained when the power state is in ultra-deep sleep mode or deep sleep mode; an indication of whether channel measurements are obtained by the master radio or wake-up receiver; or an indication of what the power state of the master radio is at the point in time when the first device fails.

[0175] In some example embodiments, in sleep-free mode, the master radio performs channel monitoring and channel measurement; in deep sleep mode, the master radio performs channel measurement without channel monitoring; and in ultra-deep sleep mode, the master radio does not perform channel monitoring or channel measurement.

[0176] In some example embodiments, the first device further includes: a component for recording a measurement log, the measurement log including at least one of the following: the power state of the main radio, the power state of the main radio at the time point in time of the channel measurement for the measurement log, or the result of the channel measurement; and a component for transmitting the measurement log to the second device.

[0177] In some example embodiments, the measurement log also includes a channel measurement metric obtained by the wake-up receiver, and the first device further includes a component for recording the channel measurement metric in the measurement log if it is determined that the channel measurement metric is less than or equal to a threshold.

[0178] In some example embodiments, the first device further includes a component for recording measurement logs in response to receiving a configuration for recording measurement logs from the second device, based on the configuration.

[0179] In some example embodiments, the first device further includes: a component for receiving configuration information from the second device for sending at least one indication; and a component for sending at least one indication to the second device based on the configuration information.

[0180] In some example embodiments, the configuration information indicates at least one of the following: information of the first device, auxiliary information of the first device, radio resource control message, media access control element, uplink control information, measurement report, or measurement log.

[0181] In some example embodiments, the first device further includes a component for sending at least one indication to the second device based on at least one of the following: the power state of the main radio is in sleep mode, receiving configuration information for sending at least one indication, a measurement log being recorded, or a failure of the first device.

[0182] In some example embodiments, at least one indication is sent based on a fault of the first device, the fault including at least one of the following: random access fault, handover fault, radio link fault, connection establishment or reconstruction fault, or cross-radio access technology radio link fault, and at least one of the indications is used to indicate the power status of the main radio at the time the fault occurs.

[0183] In some example embodiments, the first device further includes components for performing other operations in some example embodiments of method 700 or the first device 110. In some example embodiments, the components include: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first device to perform.

[0184] In some example embodiments, a second device capable of performing any method 800 (e.g., Figure 1 The second device 120 may include a component for performing the corresponding operation of method 800. This component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module. The second device may be implemented as or included in... Figure 1 The second device 120 in the middle.

[0185] In some example embodiments, the second device includes: components for configuring to send a wake-up signal to the first device for monitoring by a wake-up receiver of the first device; and components for receiving from the first device at least one indication of the power state of the main radio of the first device applied while the wake-up receiver is monitoring the wake-up signal.

[0186] In some example embodiments, at least one indication includes at least one of the following: an indication of whether the power state is in sleep mode or sleep-free mode; an indication of whether channel measurements are obtained when the power state is in sleep mode or sleep-free mode; an indication of whether the power state is in ultra-deep sleep mode or deep sleep mode; an indication of whether channel measurements are obtained when the power state is in ultra-deep sleep mode or deep sleep mode; an indication of whether the channel measurements are obtained by the main radio or the wake-up receiver; or an indication of what the power state is at the point in time when the first device fails.

[0187] In some example embodiments, the second device further includes a component for sending configuration information for sending at least one indication to the first device.

[0188] In some example embodiments, the configuration information indicates at least one of the following: information of the first device, auxiliary information of the first device, radio resource control message, media access control element, uplink control information, measurement report, or measurement log.

[0189] In some example embodiments, the second device further includes: a component for sending a configuration for recording a channel measurement log to the first device, the channel measurement log including at least one of the following: the power state of the main radio, the power state of the main radio at the point in time at which the channel measurement for the measurement log occurred, the result of the channel measurement, or the channel measurement metric obtained by the wake-up receiver.

[0190] In some example embodiments, the second device further includes a component for evaluating the performance of the first device based on a comparison between a first channel measurement obtained by the main radio and a second channel measurement obtained by the wake-up receiver.

[0191] In some example embodiments, the second device further includes components for performing other operations in some example embodiments of method 800 or the second device 120. In some example embodiments, the components include: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second device to perform.

[0192] Figure 9 This is a simplified block diagram of a device 900 suitable for implementing an example embodiment of the present disclosure. The device 900 can be provided to implement a communication device, for example, such as... Figure 1 The first device 110 or the second device 120 shown. As shown, the device 900 includes one or more processors 910, one or more memories 920 coupled to the processors 910, and one or more communication modules 940 coupled to the processors 910.

[0193] Communication module 940 is used for bidirectional communication. Communication module 940 has one or more communication interfaces to facilitate communication with one or more other modules or devices. The communication interface can represent any interface required for communication with other network elements. In some example embodiments, communication module 940 may include at least one antenna.

[0194] As a non-limiting example, processor 910 can be any type suitable for a local technology network and can include one or more of the following: general-purpose computer, special-purpose computer, microprocessor, digital signal processor (DSP), and processor based on a multi-core processor architecture. Device 900 can have multiple processors, such as application-specific integrated circuit chips that are time-dependent on a clock of a synchronous main processor.

[0195] Memory 920 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM) 924, electrically programmable read-only memory (EPROM), flash memory, hard disk, optical disc (CD), digital video disc (DVD), optical disc, laser disc, and other magnetic and / or optical storage devices. Examples of volatile memories include, but are not limited to, random access memory (RAM) 922 and other volatile memories that will not persist during power outages.

[0196] Computer program 930 includes computer-executable instructions that are executed by an associated processor 910. The instructions of program 930 may include instructions for performing operations / actions of some example embodiments of this disclosure. Program 930 may be stored in memory (e.g., ROM 924). Processor 910 can perform any suitable actions and processes by loading program 930 into RAM 922.

[0197] The exemplary embodiments of this disclosure can be implemented by program 930, enabling device 900 to perform as described in the reference. Figures 3 to 8 Any process discussed in this disclosure. Exemplary embodiments of this disclosure may also be implemented by hardware or by a combination of software and hardware.

[0198] In some example embodiments, program 930 may be tangibly contained in a computer-readable medium, which may be included in device 900 (such as memory 920) or other storage device accessible by device 900. Device 900 may load program 930 from the computer-readable medium into RAM 922 for execution. In some example embodiments, the computer-readable medium may include any type of non-transitory storage medium, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. As used herein, the term "non-transitory" is a limitation on the medium itself (i.e., tangible, not tactile), rather than a limitation on the persistence of data storage (e.g., RAM and ROM).

[0199] Figure 10 An example of a computer-readable medium 1000 is shown, which may be in the form of a CD, DVD, or other optical storage disc. Program 930 is stored on the computer-readable medium 1000.

[0200] Generally, the various embodiments of this disclosure can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects can be implemented in hardware, while others can be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of this disclosure are illustrated and described as block diagrams, flowcharts, or using some other graphical representation, it should be understood that, as non-limiting examples, the blocks, apparatuses, systems, techniques, or methods described herein can be implemented in hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0201] Some exemplary embodiments of this 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 that execute in a device on a target entity or virtual processor, such as those included in a program module, to perform any of the methods described above. Typically, a program module includes routines, programs, libraries, objects, classes, components, data structures, etc., that perform a particular task or implement a particular abstract data type. In various embodiments, the functionality of a program module can be combined or split among program modules as needed. The machine-executable instructions for a program module can execute within a local or distributed device. In a distributed device, the program module can reside in both local and remote storage media.

[0202] Program code used to perform the methods of this disclosure may be written in any combination of one or more programming languages. The program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may 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.

[0203] In the context of this disclosure, computer program code or related data may be carried by any suitable carrier to enable a device, apparatus, or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, etc.

[0204] Computer-readable media can be computer-readable signal media or computer-readable storage media. Computer-readable media can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any suitable combination thereof. More specific examples of computer-readable storage media will include electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable optical disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0205] Furthermore, although operations are described in a specific order, this should not be construed as requiring that such operations be performed in the specific order shown or sequentially, or that all shown operations be performed to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the discussion above, these details should not be construed as limiting the scope of this disclosure, but rather as descriptions of features that may be specific to particular embodiments. Unless explicitly stated otherwise, certain features described in the context of a single embodiment may also be implemented in combination in a single embodiment. Conversely, unless explicitly stated otherwise, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0206] Although this disclosure has been described in language specific to structural features and / or methodological actions, it should be understood that the disclosure as defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are disclosed as exemplary forms for implementing the claims.

Claims

1. A first device, comprising: At least one processor; as well as At least one memory stores instructions that, when executed by the at least one processor, cause the first device to: Determine the power status of the main radio of the first device; as well as Indicate the determined power state of the main radio to the second device.

2. The first device according to claim 1, wherein the determined power state is applied by the main radio when a predetermined event occurs at the first device.

3. The first apparatus according to claim 2, wherein the predetermined event includes at least one of the following: A network connection failure occurred in the first device. At least one wake-up signal is detected by the first device, or At least one measurement result is recorded by the first device.

4. The first device according to claim 2 or claim 3, wherein the first device is configured to: If the predetermined event is determined to occur, the second device is instructed to indicate at least one of the following: the power state, or the predetermined event occurring when the power state is applied by the main radio.

5. The first device according to any one of claims 1 to 4, wherein the power state is one of a sleep mode or a non-sleep mode.

6. The first device according to any one of claims 1 to 5, wherein the power state indicates the sleep mode of the main radio among a plurality of different sleep modes.

7. The first device according to any one of claims 1 to 6, wherein the first device is configured such that: At least one measurement result is recorded in a measurement log, the measurement log including at least one of the following: the power state of the main radio, or the power state of the main radio at the time point at which the at least one measurement result was obtained; and The measurement log is sent to the second device.

8. The first apparatus of claim 7, wherein the measurement log further comprises a measurement metric obtained by a wake-up receiver of the first apparatus, and the first apparatus is further configured to: If it is determined that the measurement metric is below or equal to the threshold, the measurement metric is recorded in the measurement log.

9. The first device according to claim 7 or claim 8, wherein the first device is further configured to: Receive configuration for recording the measurement log from the second device.

10. The first device according to any one of claims 1 to 9, wherein the first device is configured to: Receive configuration information from the second device for indicating the power state; and The power status is indicated to the second device based on the configuration information.

11. The first device according to any one of claims 1 to 10, wherein the power state is indicated by at least one of the following: Information about the first device, Auxiliary information of the first device, Radio resource control messages, Media access control element Uplink control information, Measurement report, or Measurement log.

12. A second device, comprising: At least one processor; as well as At least one memory stores instructions that, when executed by the at least one processor, cause the second device to: Receive an indication of the power status of the main radio of the first device from the first device.

13. The second apparatus of claim 12, wherein the indication is further configured to indicate that a predetermined event occurs when the power state is applied by the main radio, the predetermined event including at least one of the following: A network connection failure occurred in the first device. At least one wake-up signal is detected by the first device, or At least one measurement result is recorded by the first device.

14. The second device according to claim 12 or 13, wherein the power state is one of a sleep mode or a non-sleep mode, and the sleep mode is one of a plurality of different sleep modes.

15. The second device according to any one of claims 12 to 14, wherein the second device is configured to: The first device is sent configuration information indicating the power state, the configuration information indicating that the power state is indicated by at least one of the following: Information about the first device, Auxiliary information of the first device, Radio resource control messages, Media access control element Uplink control information, Measurement report, or Measurement log.

16. The second device according to any one of claims 12 to 15, wherein the second device is configured to: The performance of the first device is evaluated by comparing a first measurement obtained by the main radio with a second measurement obtained by the wake-up receiver of the first device.

17. A method comprising: The power status of the main radio of the first device is determined at the first device; as well as Indicate the determined power state of the main radio to the second device.

18. A method comprising: The second device receives an indication of the power status of the main radio of the first device from the first device.

19. A first device, comprising: Components used to determine the power status of the main radio of the first device; as well as A component for instructing a second device on the determined power state of the main radio.

20. A second device, comprising: A component for receiving an indication of the power status of the main radio of the first device from the first device.

21. A computer-readable medium comprising instructions stored thereon for causing a device to perform at least the method of claim 17 or claim 18.

Images