EP4662975A1 - Surveillance de signal de réveil - Google Patents

Surveillance de signal de réveil

Info

Publication number
EP4662975A1
EP4662975A1 EP23920343.3A EP23920343A EP4662975A1 EP 4662975 A1 EP4662975 A1 EP 4662975A1 EP 23920343 A EP23920343 A EP 23920343A EP 4662975 A1 EP4662975 A1 EP 4662975A1
Authority
EP
European Patent Office
Prior art keywords
monitoring
condition
met
wake
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23920343.3A
Other languages
German (de)
English (en)
Inventor
Jussi-Pekka Koskinen
Samuli Heikki TURTINEN
Chunli Wu
Sunyoung Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Technologies Oy
Original Assignee
Nokia Technologies Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of EP4662975A1 publication Critical patent/EP4662975A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H04B17/328—Reference signal received power [RSRP]; Reference signal received quality [RSRQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower where the power saving management affects multiple terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal where the received signal is a power saving command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • Various example embodiments of the present disclosure generally relate to the field of telecommunication, and in particular, to methods, devices, apparatuses and computer readable storage medium for wake-up signal monitoring.
  • 5G systems are designed and developed targeting for both mobile telephony and vertical use cases. Besides latency, reliability, and availability, user equipment (UE) energy efficiency is also critical to 5G.
  • UE user equipment
  • 5G devices may have to be recharged per week or day, depending on individual’s usage time.
  • 5G devices consume tens of milliwatts in Radio Resource Control (RRC) idle/inactive state and hundreds of milliwatts in RRC connected state. Designs to prolong battery life is a necessity for improving energy efficiency as well as for better user experience.
  • RRC Radio Resource Control
  • UEs without a continuous energy source
  • sensors and actuators are deployed extensively for monitoring, measuring, charging, etc.
  • their batteries are not rechargeable and expected to last at least few years.
  • UEs need to periodically wake up once per Discontinuous Reception (DRX) cycle, which dominates the power consumption in periods with no signaling or data traffic. If UEs are able to wake up only when they are addressed, e.g., by paging, power consumption could be dramatically reduced.
  • DRX Discontinuous Reception
  • Main radio works for downlink reception including e.g., SSB/system information/paging/data/control signaling reception as well as for uplink transmission including e.g., data and control signaling transmission.
  • Main radio is also responsible for cell (re) selection evaluation to ensure e.g., that the UE is camping on the best cell.
  • Main radio can be turned off or set to (deep) sleep unless it is turned on.
  • a first device comprising at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first device at least to perform: determining that a monitoring condition is met based on a configuration comprising at least one of a monitoring start condition or a monitoring stop condition related to a wake-up signal, the monitoring condition being the monitoring start condition or the monitoring stop condition; and performing a monitoring operation corresponding to the monitoring condition which is met.
  • a second device comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second device at least to perform: transmitting, to a first device, a configuration comprising at least one of a monitoring start condition or a monitoring stop condition related to a wake-up signal.
  • a method comprises: at a first device, determining that a monitoring condition is met based on a configuration comprising at least one of a monitoring start condition or a monitoring stop condition related to a wake-up signal, the monitoring condition being the monitoring start condition or the monitoring stop condition; and performing a monitoring operation corresponding to the monitoring condition which is met.
  • a method comprises: transmitting, at a second device and to a first device, a configuration comprising at least one of a monitoring start condition or a monitoring stop condition related to a wake-up signal.
  • the first apparatus comprises means for determining that a monitoring condition is met based on a configuration comprising at least one of a monitoring start condition or a monitoring stop condition related to a wake-up signal, the monitoring condition being the monitoring start condition or the monitoring stop condition; and means for performing a monitoring operation corresponding to the monitoring condition which is met.
  • a second apparatus comprises means for transmitting, to a first device, a configuration comprising at least one of a monitoring start condition or a monitoring stop condition related to a wake-up signal.
  • a computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the third aspect.
  • a computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the fourth aspect.
  • FIG. 1 illustrates an example communication environment in which example embodiments of the present disclosure can be implemented
  • FIG. 2A and FIG. 2B illustrate example block diagrams of operations of a first device with a wake-up receiver (WUR) according to some example embodiments of the present disclosure, respectively;
  • WUR wake-up receiver
  • FIG. 3 illustrates an example signaling diagram of a wake-up signal monitoring procedure according to some example embodiments of the present disclosure
  • FIG. 4 illustrates a flowchart of a method implemented at a first device according to some example embodiments of the present disclosure
  • FIG. 5 illustrates a flowchart of a method implemented at a second device according to some example embodiments of the present disclosure
  • FIG. 6 illustrates a simplified block diagram of a device that is suitable for implementing example embodiments of the present disclosure.
  • FIG. 7 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • first, ” “second” and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments.
  • the term “and/or” includes any and all combinations of one or more of the listed terms.
  • performing a step “in response to A” does not indicate that the step is performed immediately after “A” occurs and one or more intervening steps may be included.
  • circuitry may refer to one or more or all of the following:
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
  • the term “communication network” refers to a network following any suitable communication standards, such as 6G, New Radio (NR) , Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) and so on.
  • NR New Radio
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • NB-IoT Narrow Band Internet of Things
  • the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • suitable generation communication protocols including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system
  • the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom.
  • the network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , an NR NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, an Integrated Access and Backhaul (IAB) node, a low power node such as a femto, a pico, a non-terrestrial network (NTN) or non-ground network device such as a satellite network device, a low earth orbit (LEO) satellite and a geosynchronous earth orbit (GEO) satellite, an aircraft network device, and so forth, depending on the applied terminology and technology
  • radio access network (RAN) split architecture comprises a Centralized Unit (CU) and a Distributed Unit (DU) at an IAB donor node.
  • An IAB node comprises a Mobile Terminal (IAB-MT) part that behaves like a UE toward the parent node, and a DU part of an IAB node behaves like a base station toward the next-hop IAB node.
  • IAB-MT Mobile Terminal
  • terminal device refers to any end device that may be capable of wireless communication.
  • a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) .
  • UE user equipment
  • SS Subscriber Station
  • MS Mobile Station
  • AT Access Terminal
  • the terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (loT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and/
  • the terminal device may also correspond to a Mobile Termination (MT) part of an IAB node (e.g., a relay node) .
  • MT Mobile Termination
  • IAB node e.g., a relay node
  • the terms “terminal device” , “communication device” , “terminal” , “user equipment” and “UE” may be used interchangeably.
  • resource may refer to any resource for performing a communication, for example, a communication between a terminal device and a network device, such as a resource in time domain, a resource in frequency domain, a resource in space domain, a resource in code domain, or any other resource enabling a communication, and the like.
  • a resource in both frequency domain and time domain will be used as an example of a transmission resource for describing some example embodiments of the present disclosure. It is noted that example embodiments of the present disclosure are equally applicable to other resources in other domains.
  • energy efficiency is very critical for UEs without a continuous energy source, e.g., UEs using small rechargeable and single coin cell batteries.
  • sensors and actuators are deployed extensively for monitoring, measuring, charging, etc.
  • their batteries are not rechargeable and expected to last at least few years.
  • Wearables include smart watches, rings, eHealth related devices, and medical monitoring devices. With typical battery capacity, it is challenging to sustain up to 1-2 weeks as required.
  • the power consumption depends on the configured length of wake-up periods, e.g., paging cycle in idle/inactive and DRX cycle in connected.
  • eDRX cycle with large value is expected to be used, resulting in high latency, which is not suitable for such services with requirements of both long battery life and low latency.
  • fire shutters shall be closed and fire sprinklers shall be turned on by the actuators within 1 to 2 seconds from the time the fire is detected by sensors, long eDRX cycle cannot meet the delay requirements.
  • eDRX is apparently not suitable for latency-critical use cases.
  • the intention is to study ultra-low power mechanism that can support low latency in Rel-18, e.g., lower than eDRX latency.
  • UEs need to periodically wake up once per DRX cycle, which dominates the power consumption in periods with no signalling or data traffic. If UEs (main radio) are able to wake up only when they are triggered/addressed, e.g., by paging, power consumption could be dramatically reduced. This can be achieved by using a wake-up signal to trigger the main radio and a separate receiver which has the ability to monitor wake-up signal with ultra-low power consumption.
  • Main radio works for downlink reception including e.g., SSB/system information/paging/data/control signaling transmission and reception as well as for uplink transmission including e.g., data and control signaling transmission.
  • Main radio is also responsible for cell (re) selection evaluation to ensure e.g., that the UE is camping on the best cell. Main radio which can be turned off or set to (deep) sleep unless it is turned on.
  • the power consumption for monitoring wake-up signal depends on the wake-up signal design and the hardware module of the wake-up receiver used for signal detecting and processing.
  • FIG. 1 illustrates an example communication environment 100 in which example embodiments of the present disclosure can be implemented.
  • a plurality of communication devices including a first device 110 and a second device 120, can communicate with each other.
  • the first device 110 may include a terminal device and the second device 120 may include a network device serving the terminal device.
  • the serving area of the second device 120 may be called a cell 102.
  • the communication environment 100 may include any suitable number of devices configured to implementing example embodiments of the present disclosure. Although not shown, it would be appreciated that one or more additional devices may be located in the cell 102, and one or more additional cells may be deployed in the communication environment 100. It is noted that although illustrated as a network device, the second device 120 may be another device than a network device. Although illustrated as a terminal device, the first device 110 may be a device other than a terminal device.
  • some example embodiments are described with the first device 110 operating as a terminal device and the second device 120 operating as a network device.
  • operations described in connection with a terminal device may be implemented at a network device or other device, and operations described in connection with a network device may be implemented at a terminal device or other device.
  • a link from the second device 120 to the first device 110 is referred to as a downlink (DL)
  • a link from the first device 110 to the second device 120 is referred to as an uplink (UL)
  • the second device 120 is a transmitting (TX) device (or a transmitter)
  • the first device 110 is a receiving (RX) device (or a receiver)
  • the first device 110 is a TX device (or a transmitter) and the second device 120 is a RX device (or a receiver) .
  • Communications in the communication environment 100 may be implemented according to any proper communication protocol (s) , comprising, but not limited to, cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) , the fifth generation (5G) , the sixth generation (6G) , and the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols currently known or to be developed in the future.
  • s cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) , the fifth generation (5G) , the sixth generation (6G) , and the like
  • wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols currently known or to be developed in the future.
  • the communication may utilize any proper wireless communication technology, comprising 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 (OFDM) , Discrete Fourier Transform spread OFDM (DFT-s-OFDM) and/or any other technologies currently known or to be developed in the future.
  • CDMA Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • MIMO Multiple-Input Multiple-Output
  • OFDM Orthogonal Frequency Division Multiple
  • DFT-s-OFDM Discrete Fourier Transform spread OFDM
  • FIG. 2A and FIG. 2B illustrate example block diagrams of operations of a first device with a WUR according to some example embodiments of the present disclosure, respectively.
  • a separate low-power wake-up receiver at a terminal device for example, a UE
  • evaluate how that can reduce the UE power consumption it is desired that the main radio of the UE can be in a sleep mode (or even powered off or in limited function state) for power saving and be activated only upon the reception of a wake-up signal (WUS) from the network, as shown in FIG. 2A.
  • WUS wake-up signal
  • main radio can e.g. perform relaxed cell re-selection evaluation/RRM/RLM/BFD measurements.
  • the network triggers the UE to wake-up exactly when needed in an event-driven manner, by transmitting a special WUS to the UE, which is monitored by the dedicated low-power WUS receiver at the UE, for example, an ultra-low power receiver.
  • the WUS receiver may trigger the wake-up of the ordinary NR transceiver and communication/normal operation can start.
  • the ultra-low power receiver wakes up the main radio, as shown in FIG. 2B. Otherwise, the main radio is OFF or kept in a deep sleep mode or kept in limited function state.
  • the assumption is that the low-power wake-up receiver can be operated in an always ‘on’ manner with very low power consumption. In fact, it is expected that it will consume significantly less power compared to the NR transceiver, by designing a simple WUS signal and the use of dedicated hardware for its monitoring, which is only able to receive the WUS.
  • Low-power WUS (LP-WUS) is currently considered for both idle/inactive mode and connected mode.
  • Embodiments of the present disclosure focus on conditions that the UE is allowed to monitor LP-WUS instead of NR signals from main radio or limited amount of NR signals from main radio.
  • a device determines whether the monitoring start condition or the monitoring stop condition is met. The device then performs a monitoring operation corresponding to the condition which is met. For example, if the monitoring start condition is met, the device may start monitoring of the wake-up signal. If the monitoring stop condition is met, the device may stop monitoring of the wake-up signal.
  • the device can monitor LP-WUS only when condition (s) are met. In this way, the device can avoid delay caused by unnecessarily monitoring of WUS, or even further power consumption.
  • FIG. 3 illustrates an example signaling diagram 300 of a wake-up signal monitoring procedure according to some example embodiments of the present disclosure.
  • the diagram 300 will be discussed with reference to FIG. 1, for example, by using the first device 110 and the second device 120.
  • the second device 120 may transmit a wake-up signal to the first device 110.
  • the first device 110 determines whether condition (s) for wake-up signal monitoring are fulfilled.
  • the condition (s) may comprise a monitoring start condition related to a wake-up signal, a monitoring stop condition related to the wake-up signal, and/or other suitable condition (s) .
  • the monitoring start condition is also referred to as a WUS monitoring start condition
  • the monitoring stop condition is also referred to as a WUS monitoring stop condition.
  • the condition (s) for LP-WUS monitoring may comprise one or more of the above conditions and additionally other conditions not detailed herein.
  • the condition (s) may be predefined in specifications.
  • the first device 110 may determine whether the monitoring start condition or the monitoring stop condition is met according to definitions of condition (s) for LP-WUS monitoring in the specifications.
  • the condition (s) may be configured by the network, for example, the second device 120.
  • a configuration comprising the condition (s) may be transmitted (310) from the second device 120 to the first device 110 via a dedicated signaling, a broadcast signaling, and/or the like.
  • the configuration may be transmitted via dedicated RRC signaling (e.g. RRC Release or RRC Reconfiguration message) or a System Information Block (SIB) .
  • RRC signaling e.g. RRC Release or RRC Reconfiguration message
  • SIB System Information Block
  • the first device 110 receives (320) the configuration from the second device 120 for WUS monitoring.
  • the first device 110 determines (330) , from the monitoring start condition and the monitoring stop condition, a monitoring condition which is met. In other words, the first device 110 determines whether the monitoring start condition or the monitoring stop condition is met.
  • the first device 110 may consider a variety of factors, such as receiving power, measurements relaxing, power range, monitoring duration, and/or the like.
  • the first device 110 may determine whether a difference between a current receiving power of a reference signal and a previous receiving power of a reference signal exceeds a threshold power. If the difference exceeds the threshold power, the first device 110 may determine that the monitoring start condition is met.
  • the receiving power of the reference signal may be, for example, Reference Signal Receiving Power (RSRP) .
  • RSRP Reference Signal Receiving Power
  • RSSI Reference Signal Strength Indicator
  • SINR Signal to Interference plus Noise Ratio
  • signal quality metric is measured from the signal received by main radio or separate receiver.
  • the previous receiving power /measurement result may be pre-stored.
  • the previous receiving power /measurement result may be stored after a cell is selected, including a new cell is selected and a cell is reselected.
  • the previous receiving power /measurement result may be stored if the monitoring start condition is not met anymore or the monitoring start condition is not fulfilled for a time period.
  • the previous receiving power/measurement result may be stored in accordance with a determination that the previous receiving power/measurement result is not equal to a stored receiving power.
  • the monitoring start/stop condition is met if RSRP has increased/decreased more than a predefined value/threshold since RSRP has been stored last time.
  • the monitoring start/stop condition is met if RSRP has decreased less/more than a predefined value/threshold since RSRP has been stored last time.
  • the first device 110 may store the RSRP for comparison in several cases.
  • the RSRP for comparison may be stored after selecting or reselecting a new cell.
  • the RSRP for comparison may be stored if the condition is not met anymore.
  • the RSRP for comparison may be stored if the monitoring start condition is not fulfilled during a timer period.
  • this current RSRP may be stored as the RSRP for comparison.
  • the first device 110 may determine that the monitoring start/stop condition is met.
  • RRM Radio Resource Management
  • RLM Radio Link Monitoring
  • BFD Beam Failure Detection
  • the monitoring start condition may be related to an idle mode, an inactive mode, and/or a connected mode.
  • the monitoring stop condition may be related to an idle mode, an inactive mode, and/or a connected mode, as well.
  • the second device 120 does not necessarily need to be aware of the first device 110 is monitoring LP-WUS or not in the cell, because it can indicate LP-WUS to wake up the first device 110 first and then send paging message in a paging occasion (PO) to the first device 110. If the first device 110 is not monitoring the LP-WUS, the first device 110 may monitor PO directly. For a terminal device the cell center, it could still benefit from LP-WUS.
  • the second device 120 for example, the network (NW)
  • the first device 110 for example, a UE
  • the second device 120 for example, the network (NW)
  • the first device 110 for example, a UE
  • the second device 120 would need to have common understanding of the UE is monitoring LP-WUS or not.
  • whether a monitoring condition is met may need to be synched between the UE and the NW.
  • the UE needs to decide whether it monitors the LP-WUS or not. If yes, the UE may start monitoring immediately or then follow Physical Downlink Control Channel (PDCCH) monitoring as legacy.
  • the UE informs NW in case there is change in WUS monitoring.
  • the UE informs network when monitoring start or stop condition is met.
  • PDCCH Physical Downlink Control Channel
  • the first device 110 may determine whether a monitoring stop condition for LP-WUS monitoring is met in various ways.
  • the monitoring stop condition may be configured by the network, for example, the second device 120, or defined in the specifications.
  • the first device 110 may determine that the monitoring stop condition is met. For example, if a current RSRP is in a certain range, e.g., below a threshold, it may be determined that the monitoring stop condition is met. In this way, misdetection of LP-WUS in a poor radio quality can be avoided.
  • the first device 110 may determine that the monitoring stop condition is met.
  • the first device 110 may determine that the monitoring stop condition is met.
  • the time duration may be defined in absolute time duration or in number of LP-WUS monitoring opportunities.
  • the time duration may be a predefined time period.
  • the time duration may comprise a predetermined number of monitoring opportunities of the wake-up signal.
  • the wake-up signal is not detected for a predetermined number of times since the first device 110 starts monitoring of the wake-up signal, determining that the monitoring stop condition is met. That is, the stopping condition is fulfilled if LP-WUS is not detected for a certain number since the first device 110 starts LP-WUS monitoring. For this, the first device 110 may only count the consecutive number of not-detected LP-WUS.
  • the configuration which is, for example, received from the second device 120 or predefined in the specifications, may only comprise the monitoring start condition without the monitoring start condition.
  • the second device 120 may transmit to the first device 110, an indication of stopping the monitoring of the wake-up signal.
  • the first device 110 it may monitor the wake-up signal until the first device 110 receives the indication of stopping the monitoring from the second device 120.
  • a UE may continue LP-WUS monitoring until the NW indicates stopping of LP-WUS explicitly.
  • the first device 110 performs (340) a monitoring operation corresponding to the monitoring condition which is met. For example, if the monitoring start condition is met, the first device 110 may start monitoring of the wake-up signal. Alternatively, or in addition, if the monitoring stop condition is met, the first device 110 may stop monitoring of the wake-up signal.
  • the first device 110 may inform the second device 120 its monitoring information. For example, the first device 110 may transmit to the second device 120, monitoring information about whether the first device 110 is monitoring the wake-up signal. The second device 120 may receive the monitoring information and thus have the knowledge of whether the first device is monitoring the wake-up signal. In this way, the monitoring information can be synchronized between the first device 110 and the second device 120.
  • the first device 110 may transmit to the second device 120, information about the monitoring condition which is met.
  • the second device 120 may receive the information and thus can have the knowledge of whether the monitoring start condition or the monitoring stop condition is met.
  • the first device 110 may be in an idle mode or an inactive mode, and the second device 120 may transmit, to the first device 110, the wake-up signal and/or a paging signal based on the monitoring information about whether the first device is monitoring the wake-up signal.
  • the first device 110 may be an idle/inactive mode UE
  • the second device 120 (for example, NW) may transmits WUS or paging to the UE.
  • NW may determines whether to transmit WUS or paging based on the knowledge whether the UE monitors LP-WUS.
  • NW may transmit both WUS and paging to the idle/inactive mode UE.
  • the first device 110 may be in a connected mode, and the second device 120 may transmit, to the first device 110, the wake-up signal and/or downlink control information (for example, PDCCH) based on the monitoring information.
  • the wake-up signal and/or downlink control information for example, PDCCH
  • the first device 110 may be a connected mode UE.
  • NW may transmit WUS or downlink control information (for example, PDCCH) to the connected mode UE.
  • NW may determine whether to transmit WUS or PDCCH based on the knowledge whether the UE monitors LP-WUS.
  • NW may transmit both WUS and PDCCH to the connected mode UE.
  • FIG. 4 shows a flowchart of an example method 400 implemented at a first device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 400 will be described from the perspective of the first device 110 in FIG. 1.
  • the first device 110 determines that a monitoring condition is met based on a configuration comprising at least one of a monitoring start condition or a monitoring stop condition related to a wake-up signal.
  • the monitoring condition is the monitoring start condition or the monitoring stop condition.
  • the first device 110 performs a monitoring operation corresponding to the monitoring condition which is met.
  • performing a monitoring operation corresponding to the target condition comprises at least one of: in accordance with a determination that the monitoring start condition is met, starting monitoring of the wake-up signal; or in accordance with a determination that the monitoring stop condition is met, stopping monitoring of the wake-up signal.
  • the method 400 further comprises: receiving the configuration from a second device.
  • receiving the configuration comprises: receiving the configuration via at least one of a dedicated signaling or a broadcast signaling.
  • the dedicated signaling may comprise a RRC Release message or a RRC Reconfiguration message.
  • the broadcast signaling may comprise a system information message or a system information block.
  • determining that a monitoring condition is met comprises determining whether a difference between a current receiving power of a reference signal and a previous receiving power of a reference signal exceeds a threshold power; and in accordance with a determination that the difference exceeds the threshold power, determining that the monitoring start condition is met.
  • the previous receiving power is stored after a cell is selected, or wherein the previous receiving power is stored in accordance with a determination that the monitoring start condition is not met anymore or the monitoring start condition is not fulfilled for a timer period, or wherein the previous receiving power is stored in accordance with a determination that the previous receiving power is not equal to a stored receiving power.
  • determining that a monitoring condition is met comprises: in accordance with a determination that the first device is relaxing measurements, determining that the monitoring start condition is met.
  • the measurements may comprise RRM, RLM, or BFD measurements.
  • the monitoring start condition or the monitoring start condition is related to at least one of the following modes: an idle mode, an inactive mode, or a connected mode.
  • determining that a monitoring condition is met comprises: in accordance with a determination that a current receiving power of a reference signal is within a predetermined range, determining that the monitoring stop condition is met.
  • determining that a monitoring condition is met comprises: in accordance with a determination that a time duration has passed since the first device starts monitoring of the wake-up signal, determining that the monitoring stop condition is met.
  • the time duration is a predefined time period or comprises a predetermined number of monitoring opportunities of the wake-up signal.
  • determining that a monitoring condition is met comprises: in accordance with a determination that the wake-up signal is not detected for a predetermined numbers of times since the first device starts monitoring of the wake-up signal, determining that the monitoring stop condition is met.
  • the method 400 further comprises: monitoring the wake-up signal until the first device receives, from the second device, an indication of stopping the monitoring.
  • the method 400 further comprises: transmitting, to the second device, information about the monitoring condition which is met.
  • the method 400 further comprises: transmitting, to the second device, monitoring information about whether the first device is monitoring the wake-up signal.
  • the first device is a terminal device and the second device is a network device.
  • FIG. 5 shows a flowchart of an example method 500 implemented at a second device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 500 will be described from the perspective of the second device 120 in FIG. 1.
  • the second device 120 transmits to a first device 110 a configuration comprising at least one of a monitoring start condition or a monitoring stop condition related to a wake-up signal.
  • transmitting the configuration comprises: transmitting the configuration via at least one of a dedicated signaling or a broadcast signaling.
  • the dedicated signaling may comprise a RRC Release message or a RRC Reconfiguration message.
  • the broadcast signaling may comprise a system information message or a system information block.
  • the configuration only comprises the monitoring start condition and the monitoring start condition is met, and the second device is further caused to perform: transmitting, to the first device, an indication of stopping the monitoring of the wake-up signal.
  • the method 500 further comprises: receiving, from the first device, monitoring information about whether the first device is monitoring the wake-up signal.
  • the method 500 further comprises: transmitting, to the first device, at least one of the wake-up signal or a paging signal based on the monitoring information.
  • the method 500 further comprises: transmitting, to the first device, at least one of the wake-up signal or downlink control information based on the monitoring information.
  • the second device 120 may receive information about a monitoring condition which is met from the first device 110.
  • the monitoring condition is the monitoring start condition or the monitoring stop condition.
  • the second device 120 may know whether the monitoring start condition or the monitoring stop condition is met.
  • the first device is a terminal device and the second device is a network device.
  • a first apparatus capable of performing any of the method 400 may comprise means for performing the respective operations of the method 400.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the first apparatus may be implemented as or included in the first device 110 in FIG. 1.
  • the first apparatus comprises means for determining that a monitoring condition is met based on a configuration comprising at least one of a monitoring start condition or a monitoring stop condition related to a wake-up signal, the monitoring condition being the monitoring start condition or the monitoring stop condition; and means for performing a monitoring operation corresponding to the monitoring condition which is met.
  • means for performing a monitoring operation corresponding to the target condition comprises at least one of: means for in accordance with a determination that the monitoring start condition is met, starting monitoring of the wake-up signal; or means for in accordance with a determination that the monitoring stop condition is met, stopping monitoring of the wake-up signal.
  • the first apparatus further comprises: means for receiving the configuration from a second device.
  • means for receiving the configuration comprises: means for receiving the configuration via at least one of a dedicated signaling or a broadcast signaling.
  • the dedicated signaling may comprise a RRC Release message or a RRC Reconfiguration message.
  • the broadcast signaling may comprise a system information message or a system information block.
  • means for determining that a monitoring condition is met comprises: means for determining whether a difference between a current receiving power of a reference signal and a previous receiving power of a reference signal exceeds a threshold power; and means for in accordance with a determination that the difference exceeds the threshold power, determining that the monitoring start condition is met.
  • the previous receiving power is stored after a cell is selected, or wherein the previous receiving power is stored in accordance with a determination that the monitoring start condition is not met anymore or the monitoring start condition is not fulfilled for a timer period, or wherein the previous receiving power is stored in accordance with a determination that the previous receiving power is not equal to a stored receiving power.
  • means for determining that a monitoring condition is met comprises: means for in accordance with a determination that the first device is relaxing measurements, determining that the monitoring start condition is met.
  • the measurements comprise Radio Resource Management, RRM, Radio Link Monitoring, RLM, or Beam Failure Detection, BFD measurements.
  • the monitoring start condition or the monitoring start condition is related to at least one of the following modes: an idle mode, an inactive mode, or a connected mode.
  • means for determining that a monitoring condition is met comprises: means for in accordance with a determination that a current receiving power of a reference signal is within a predetermined range, determining that the monitoring stop condition is met.
  • means for determining that a monitoring condition is met comprises: means for in accordance with a determination that a time duration has passed since the first device starts monitoring of the wake-up signal, determining that the monitoring stop condition is met.
  • the time duration is a predefined time period or comprises a predetermined number of monitoring opportunities of the wake-up signal.
  • means for determining that a monitoring condition is met comprises: means for in accordance with a determination that the wake-up signal is not detected for a predetermined numbers of times since the first device starts monitoring of the wake-up signal, determining that the monitoring stop condition is met.
  • the first apparatus further comprises: means for monitoring the wake-up signal until the first device receives, from the second device, an indication of stopping the monitoring.
  • the first apparatus further comprises: means for transmitting, to the second device, information about the monitoring condition which is met.
  • the first apparatus further comprises: means for transmitting, to the second device, monitoring information about whether the first device is monitoring the wake-up signal.
  • the first device is a terminal device and the second device is a network device.
  • the first apparatus further comprises means for performing other operations in some example embodiments of the method 400 or the first device 110.
  • the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the first apparatus.
  • a second apparatus capable of performing any of the method 500 may comprise means for performing the respective operations of the method 500.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the second apparatus may be implemented as or included in the second device 120 in FIG. 1.
  • the second apparatus comprises means for transmitting, to a first device, a configuration comprising at least one of a monitoring start condition or a monitoring stop condition related to a wake-up signal.
  • means for transmitting the configuration comprises: means for transmitting the configuration via at least one of a dedicated signaling or a broadcast signaling.
  • the dedicated signaling may comprise a RRC Release message or a RRC Reconfiguration message.
  • the broadcast signaling may comprise a system information message or a system information block.
  • the configuration only comprises the monitoring start condition and the monitoring start condition is met, and the second device is further caused to perform: means for transmitting, to the first device, an indication of stopping the monitoring of the wake-up signal.
  • the second apparatus further comprises: means for receiving, from the first device, monitoring information about whether the first device is monitoring the wake-up signal.
  • the second apparatus further comprises: means for transmitting, to the first device, at least one of the wake-up signal or a paging signal based on the monitoring information.
  • the second apparatus further comprises: means for transmitting, to the first device, at least one of the wake-up signal or downlink control information based on the monitoring information.
  • the second apparatus may further comprise means for receiving, from the first device, information about a monitoring condition which is met.
  • the monitoring condition is the monitoring start condition or the monitoring stop condition.
  • the first device is a terminal device and the second device is a network device.
  • the second apparatus further comprises means for performing other operations in some example embodiments of the method 500 or the second device 120.
  • the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the second apparatus.
  • FIG. 6 is a simplified block diagram of a device 600 that is suitable for implementing example embodiments of the present disclosure.
  • the device 600 may be provided to implement a communication device, for example, the first device 110 or the second device 120 as shown in FIG. 1.
  • the device 600 includes one or more processors 610, one or more memories 620 coupled to the processor 610, and one or more communication modules 640 coupled to the processor 610.
  • the communication module 640 is for bidirectional communications.
  • the communication module 640 has one or more communication interfaces to facilitate communication with one or more other modules or devices.
  • the communication interfaces may represent any interface that is necessary for communication with other network elements.
  • the communication module 640 may include at least one antenna.
  • the processor 610 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 600 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • the memory 620 may include one or more non-volatile memories and one or more volatile memories.
  • the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 624, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , an optical disk, a laser disk, and other magnetic storage and/or optical storage.
  • ROM Read Only Memory
  • EPROM electrically programmable read only memory
  • flash memory a hard disk
  • CD compact disc
  • DVD digital video disk
  • optical disk a laser disk
  • RAM random access memory
  • a computer program 630 includes computer executable instructions that are executed by the associated processor 610.
  • the instructions of the program 630 may include instructions for performing operations/acts of some example embodiments of the present disclosure.
  • the program 630 may be stored in the memory, e.g., the ROM 624.
  • the processor 610 may perform any suitable actions and processing by loading the program 630 into the RAM 622.
  • the example embodiments of the present disclosure may be implemented by means of the program 630 so that the device 600 may perform any process of the disclosure as discussed with reference to FIG. 3 to FIG. 5.
  • the example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • the program 630 may be tangibly contained in a computer readable medium which may be included in the device 600 (such as in the memory 620) or other storage devices that are accessible by the device 600.
  • the device 600 may load the program 630 from the computer readable medium to the RAM 622 for execution.
  • the computer readable medium may include any types of non-transitory storage medium, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • the term “non-transitory, ” as used herein, is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM) .
  • FIG. 7 shows an example of the computer readable medium 700 which may be in form of CD, DVD or other optical storage disk.
  • the computer readable medium 700 has the program 630 stored thereon.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer readable medium, such as a non-transitory computer readable medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target physical or virtual processor, to carry out any of the methods as described above.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present 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 the program code, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the computer program code or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above.
  • Examples of the carrier include a signal, computer readable medium, and the like.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

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  • Signal Processing (AREA)
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Abstract

Des modes de réalisation de la présente divulgation concernent des dispositifs, des procédés, des appareils et des supports de stockage lisibles par ordinateur pour la surveillance d'un signal de réveil. Un premier dispositif détermine qu'une condition de surveillance est remplie d'après une configuration comprenant une condition de début de surveillance et/ou une condition d'arrêt de surveillance relatives à un signal de réveil. La condition de surveillance est la condition de début de surveillance ou la condition d'arrêt de surveillance. Le premier dispositif effectue une opération de surveillance correspondant à la condition de surveillance qui est remplie. De cette manière, le premier dispositif peut éviter un retard et une consommation d'énergie provoqués par une surveillance de signal de réveil inutile.
EP23920343.3A 2023-02-06 2023-02-06 Surveillance de signal de réveil Pending EP4662975A1 (fr)

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WO2020029272A1 (fr) * 2018-08-10 2020-02-13 华为技术有限公司 Procédé pour un signal d'activation, terminal et dispositif de réseau
WO2020130930A1 (fr) * 2018-12-21 2020-06-25 Telefonaktiebolaget Lm Ericsson (Publ) Configuration conditionnelle du signal de réveil pour une nouvelle radio
US11533685B2 (en) * 2019-08-16 2022-12-20 Qualcomm Incorporated Wake-up behavior indication for power saving
EP4150991A1 (fr) * 2020-05-14 2023-03-22 IDAC Holdings, Inc. Économie d'énergie d'une unité d'émission/réception sans fil associée à un mode inactif

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KR20250141245A (ko) 2025-09-26

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