CN117998545A

CN117998545A - Method and device for monitoring low-power wake-up signal in mobile communication

Info

Publication number: CN117998545A
Application number: CN202311441017.6A
Authority: CN
Inventors: 郑乾君; 吴威德; 廖怡茹; 罗翊嘉; 李承训
Original assignee: MediaTek Inc
Current assignee: MediaTek Inc
Priority date: 2022-11-07
Filing date: 2023-11-01
Publication date: 2024-05-07

Abstract

Various solutions are described relating to low power wake-up signal (LP-WUS) monitoring of user equipment and network nodes in mobile communications. The apparatus may receive a configuration from a network node. The apparatus may include a primary radio (MR) and a low power wake-up radio (LP-WUR). The apparatus may determine whether to activate or deactivate low power wake-up signal (LP-WUS) monitoring by the LP-WUR based on at least one pre-configured condition in the configuration. In the event that LP-WUS monitoring is enabled, the device may receive the LP-WUS from the network node via the LP-WUR. The invention utilizes LR-WUR to realize the beneficial effect of energy saving.

Description

Method and device for monitoring low-power wake-up signal in mobile communication

Technical Field

The present invention relates generally to mobile communications, and more particularly, to low power wake-up signal (LP-WUS) monitoring with respect to User Equipment (UE) and network devices in mobile communications.

Background

Unless otherwise indicated herein, the approaches described in this section are not prior art to the claims listed below and are not admitted to be prior art by inclusion in this section.

Fifth generation (5G) networks, while improving energy efficiency in units of per joule bits (in bits per Joule) due to their greater bandwidth and better spatial multiplexing capability (e.g., 417% higher than 4G networks), may consume more than 140% more energy than 4G networks.

Therefore, it is very important to improve the energy saving of the 5G network. There are many conflicts between performance metrics. Quality of service (Quality of service, qoS) and power saving may need to be balanced. Some local optimal solutions may not be able to achieve global/global optima. For example, a wake-up signal (WUS) saving 20% of the ue power may reduce the Base Station (BS) power saving by 30%.

The 5G device may have to be charged weekly or daily based on its time of use. In general, a 5G device may consume tens of milliwatts in a radio resource control (radio resource control, RRC) idle (idle) state or an RRC inactive (inactive) state, and hundreds of milliwatts in an RRC connected state. Therefore, how to extend the battery life of 5G devices is necessary to improve energy efficiency and achieve a better user experience.

Currently, the UE may need to wake up periodically once every discontinuous reception (discontinuous reception, DRX) cycle, which is used to govern the power consumption in controlling periods without signaling or data traffic. If the UE wakes up only when triggered (e.g., paging), power consumption may be significantly reduced. The reduction of power consumption can be achieved by using WUS to trigger a Main Radio (MR) and a separate receiver (i.e., a low-power wake-up radio (LP-WUR) capable of monitoring a low-power WUS (LP-WUS) with low power. Unless the MR is turned on, the data transmission and reception operation of the MR may be turned off or set to deep sleep.

Therefore, how to activate (activate) or deactivate (deactivate) LP-WUS monitoring for power saving becomes an important issue for the newly developed wireless communication networks. Thus, there is a need to provide suitable solutions and designs for LP-WUS monitoring.

Disclosure of Invention

The following summary is illustrative only and is not intended to be in any way limiting. That is, the following summary is provided to introduce a selection of concepts, gist, benefits and advantages of the novel and non-obvious techniques described herein. Selected embodiments are further described in the detailed description that follows. Thus, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended to be used to determine the scope of the claimed subject matter.

It is an object of the present invention to provide schemes, concepts, designs, techniques, methods and devices related to activating or deactivating LP-WUS monitoring in mobile communications. The foregoing problems are believed to be solved or alleviated by the practice of one or more of the proposed solutions described herein.

In one aspect, a method may involve an apparatus receiving a configuration from a network node, wherein the apparatus may include an MR and an LP-WUR. The method also involves the apparatus determining whether to activate or deactivate LP-WUS monitoring by the LP-WUR based on at least one pre-configured condition in the configuration. The method further involves the apparatus receiving the LP-WUS from the network node via the LP-WUR if the LP-WUS monitoring is activated.

In another aspect, an apparatus may relate to a transceiver that wirelessly communicates with at least one network node during operation, and that includes an MR and an LR-WUR. The apparatus may also include a processor communicatively coupled to the transceiver. The processor may receive the configuration from the network node via the transceiver. The processor may also determine whether to activate or deactivate LP-WUS monitoring by the LP-WUR based on at least one pre-configured condition in the configuration. The processor may further receive the LP-WUS from the network node via the LP-WUR via the transceiver if the LP-WUS monitoring is activated.

In another aspect, a method may involve a network node determining a configuration, wherein the configuration includes at least one preconfigured condition for activating or deactivating LP-WUS monitoring. The method also includes the network node sending the configuration to a User Equipment (UE). The method further includes the network node sending a low power wake-up signal to the UE in case LP-WUS monitoring is activated.

The invention provides a method and a device for monitoring a low-power wake-up signal in mobile communication, which utilize LR-WUR. The beneficial effect of energy saving is realized.

Notably, while the description provided herein may be in the context of certain radio access technologies, networks, and network topologies (e.g., fifth generation communication systems (5th Generation System,5GS) and 4G EPS mobile networks), the proposed concepts, schemes, and any variations/derivatives thereof may be implemented in, for, and by other types of wireless and wired communication technologies, networks, and network topologies, such as, but not limited to: ethernet, universal terrestrial Radio access network (Universal Terrestrial Radio Access Network, UTRAN), E-UTRAN, global system for mobile communications (Global System for Mobile communications, GSM), universal packet Radio service (GENERAL PACKET Radio SERVICE GPRS)/enhanced data rates for global Evolution (ENHANCED DATA RATES for Global Evolution, EDGE) Radio access network (GPRS/EDGE Radio Access Network, GERAN), long-Term Evolution (LTE), LTE-Advanced Pro, internet of things (Internet-of Things, ioT), industrial IoT (IIoT), narrowband IoT (NB-IoT), and any future developed network technology (e.g., 6G). Accordingly, the scope of the invention is not limited to the examples described herein.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. It will be appreciated that the drawings are not necessarily to scale, since some components may be shown out of scale in actual practice in order to clearly illustrate the inventive concepts.

Fig. 1 is a schematic diagram illustrating an example scenario of serving cell measurement relaxation (relay) under a scheme according to an embodiment of the present invention.

Fig. 2 is a schematic diagram illustrating an example scenario of search space set group (SEARCH SPACE SET groups, SSSG) switching under an approach according to an embodiment of the invention.

Fig. 3 is a block diagram of an example communication system in accordance with an embodiment of the present invention.

Fig. 4 is a flowchart of an example flow according to an embodiment of the present invention.

Fig. 5 is a flow chart of another example flow according to an embodiment of the present invention.

Detailed Description

Detailed examples and implementations of the claimed subject matter are disclosed herein. It is to be understood, however, that the disclosed examples and implementations are merely illustrative of the claimed subject matter, which may be embodied in various forms. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided so that this description will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the following description, details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations.

SUMMARY

Embodiments in accordance with the present invention relate to various techniques, methods, schemes and/or solutions related to activating or deactivating LP-WUS monitoring in mobile communications. According to the invention, a plurality of possible solutions can be implemented individually or in combination. That is, although these possible solutions may be described separately below, two or more of these possible solutions may be implemented in one combination or another.

In the conventional art, an additional synchronization signal block (synchronization signal block, SSB) search may generate 11% of power consumption in the case of Discontinuous Reception (DRX). SSB searches may occur after a primary radio (MR) wakes up from an ultra-deep sleep state where the MR may turn off the low speed clock and cease maintaining the System Frame Number (SFN) timing. Thus, under conventional schemes/architectures, the MR may need additional time to get the SFN in order to know how to schedule its timeline for SSB measurements and Paging Occasion (PO) monitoring.

Accordingly, the present invention proposes some solutions to solve these problems.

In some embodiments, the UE may include an MR and a low power wake-up radio (LP-WUR or LR). The MR and LP-WUR may exchange messages within the UE and receive independent messages from the network node. The LP-WUR may monitor mainly the LP-WUS and may monitor some New Radio (NR) reference signals for synchronization and cell quality monitoring.

In some embodiments, the LP-WUR may receive the SFN to assist the MR in finding the first SSB. In an example, the LP-WUR may receive the SFN or receive a reduced version of the SFN via one of a plurality of LP-WUS sequences. In another example, the LP-WUR may receive the SFN or receive a reduced version of the SFN via a data payload (data payload) following the synchronized LP-WUS sequence. A simplified version of the SFN may provide a larger granularity of partial SFN information.

The MR can determine whether to skip the SSB search based on whether the LP-WUR received the SFN. In an example, if the LP-WUR successfully receives the SFN, the LP-WUR may instruct the MR to skip additional SSB searches, and the LP-WUR may use the received SFN to make SSB measurements. In another example, if the received SFN is still valid when the LP-WUR indicates WUS to the MR (e.g., based on a validity timer), the LP-WUR may instruct the MR to skip additional SSB searches and the LP-WUR may use the received SFN to make SSB measurements.

In some embodiments, the MR may receive a time window from the network node for additional SSB searches. In an example, the MR or the LP-WUR may receive an offset between the timing of the LP-WUS reception and the timing of the first SSB that the MR should measure. The offset may be provided in milliseconds (ms) or time slots by the network node through system information (system information, SI), RRC, control element of medium access control (medium access control control-element, MAC-CE), or downlink control information (downlink control information, DCI) format signaling.

The MR may determine whether to stop the additional SSB search after 20ms based on an offset, a time window, or an SSB period configuration received from the network node through the RRC or SI message.

If the search time exceeds a threshold based on ramp-up time (ramp-up time), a given offset, a time window, an SSB configuration, or an SSB default configuration (e.g., 20 millisecond period), the MR may stop additional SSB searches after waking up.

The MR may report a value to the network node based on a list of MR-supported transition (transition) time values. The list may be provided by the network node through RRC or may be predetermined for the MR. The transition time value may have units of seconds or milliseconds. The transition time value may include one or more of the following time parameters, such as ramp up/down time, initial SSB search time, frequency synchronization time, SSB flow time, and required radio resource management (radio resource management, RRM) time.

In some embodiments, the LP-WUR may maintain the SFN obtained from the MR. In an example, the MR may receive an indication from the network node requesting that the LP-WUR maintain the SFN while the MR is in ultra-deep sleep. The indication may be received through an RRC, MAC-CE, or DCI format.

The MR can receive a timing relationship between the SFN and the LP-WUS, e.g., a timing offset between the SSB and the LP-WUS, and/or a period of the LP-WUS.

The LP-WUR may receive the SFN from the MR before the MR enters ultra-deep sleep, and the LP-WUR may maintain SFN timing by monitoring and receiving a synchronization preamble or data payload from the LP-WUS reception.

The LP-WUR may indicate the maintained SFN to the MR, and the MR may determine whether to terminate/skip the additional SSB search.

In some implementations, the MR can detect whether a false alarm is present based on the SFN maintained by the LP-WUR (FALSE ALARM).

If the LP-WUS receives an indication wake request, the LP-WUR may indicate a wake indication to the MR. The wake-up indication may include the maintained SFN information.

The MR can determine whether to stop the wake-up procedure by comparing the SFN maintained by the LP-WUR with the SFN received by the MR in the SI.

If the difference between the two SFN values exceeds a configurable threshold configured by the network node, the MR can identify a false alarm.

After identifying the false alarm, the MR may enter a sleep mode or an active/awake mode.

In some embodiments, the MR may detect whether PLMN selection, band, or cell ID is still valid based on LR-maintained cell ID information, band information, or cell Identity (ID) or public land mobile network (public land mobile network, PLMN) information.

The LP-WUR may receive and maintain cell ID information, band information, and PLMN information from the MR. The LP-WUR may receive complete information, partial information, or a transition notification of cell ID information, band information, or PLMN information. The LP-WUR may receive and maintain cell ID information, band information, and PLMN information from the network node in accordance with the LP-WUS.

If the MR cannot find any SSB after a period of time or several attempts, the MR can trigger an initial cell search or PLMN selection. The period of the attempts may be configured by the network node in seconds, slots or milliseconds through RRC or SI.

If any of the information received by the MR after waking up is not aligned with the maintained cell ID information or PLMN information, the MR may trigger an initial cell search or PLMN selection.

The UE may perform serving cell measurements in each DRX to maintain the link. On the other hand, if the MR is awakened for serving cell measurements every DRX period, the power saving advantage of LP-WUR will be reduced.

Therefore, it should be studied how to reduce the serving cell measurements of MR when the UE includes LP-WUR. For example, after the MR detects good serving cell quality, the MR may relax the serving cell measurements when the UE includes LP-WUR. The LP-WUR may monitor whether the serving cell quality becomes worse, such that the LP-WUR needs to wake up the MR to perform normal serving cell measurements (i.e., without relaxation).

Fig. 1 is an example scenario 100 illustrating base serving cell measurement relaxation under an approach in accordance with an embodiment of the present invention. Scenario 100 involves multiple network nodes (e.g., macro base stations and multiple micro base stations) and UEs, which may be part of a wireless communication network (e.g., LTE network, 5G/NR network, ioT network, or 6G network). Referring to fig. 1, assume that LP-WUS is applied to page monitoring. PO monitoring is only required when LP-WUS is received, i.e. the probability of PO monitoring occurring is low. When there is no measurement relaxation and the UE does not include LP-WUR, the MR may measure 1 SSB and monitor 1 paging early indication (PAGING EARLY indication, PEI). As shown in the upper part of fig. 1, when there is no measurement relaxation on the serving cell, the MR can measure 1 SSB per DRX cycle and the LP-WUR can monitor 1 LP-WUS. As shown in the lower half of fig. 1, when there are K (e.g., 4 as shown in fig. 1) measurements on the serving cell to relax, the MR may measure 1 SSB per K DRX cycles, and the LP-WUR may monitor 1 LP-WUS per DRX cycle, where K is an integer. Referring to fig. 1, when 4 measurements are allowed to relax in a serving cell, a power-save (PS) gain of 36% may be achieved. The maximum PS gain may come from MR skipping SSB measurements.

In some embodiments, the UE may receive the configuration from the network node, and the UE may include the MR and the LP-WUR. The UE may determine whether to activate or deactivate LP-WUS monitoring by the LP-WUR based on at least one pre-configured condition in a configuration from the network node. In addition, the UE may receive the LP-WUS from the network node via the LP-WUR when the LP-WUS monitoring is activated.

In some embodiments, the UE may also offload RRM measurements from the MR to the LP-WUR when LP-WUS monitoring is activated. In some embodiments, the pre-configured conditions in the configuration may include that the LP-WUS is a periodic reference signal for low-power radio (LR) measurements.

In some embodiments, the UE may deactivate LP-WUS monitoring on the LP-WUR when RRM measurements in the MR are relaxed. The UE may then perform measurements via the MR with a relaxed period.

In some embodiments, the UE may deactivate LP-WUS monitoring on the LP-WUR when the result of the LP-WUS based measurement on the LP-WUR is below a threshold. The UE may then perform measurements via MR.

In some embodiments, the UE may determine whether to activate or deactivate LP-WUS monitoring by the LP-WUR based on channel conditions. In some embodiments, the channel conditions may include adequate or insufficient coverage of the LP-WUS.

In some embodiments, if the LP-WUS provides sufficient information and the LP-WUR has the ability to perform the serving cell measurements, the MR may offload the serving cell measurements to the LP-WUR.

The MR may receive a serving cell measurement relaxation configuration from the network node via SI, RRC, MAC-CE or DCI format. In an example, the serving cell measurement relaxation configuration may indicate how to skip measurements, e.g., skip three measurements after one SSB measurement. In another example, the serving cell measurement relaxation configuration may include a condition that the UE is able to skip serving cell measurements. The condition may include at least one of LP-WUR on, high SNR, and low UE mobility.

In some embodiments, the MR can trigger a serving cell measurement relaxation when the LP-WUR starts monitoring. In another example, the MR may trigger serving cell measurement relaxation after the LP-WUR receives an indication from the network node. In some embodiments, the MR may trigger the serving cell measurement relaxation when the LP-WUR sends an indication to the MR that the serving cell measurement relaxation on the MR is allowed.

In some implementations, if the required conditions are met, the MR can skip the serving cell measurement based on the serving cell measurement relaxation configuration. After the MR skips the serving cell measurement, the LP-WUR may begin monitoring the serving cell measurement.

In some embodiments, if the LP-WUR identifies some errors and/or the LP-WUR is unable to monitor the serving cell measurements, the LP-WUR may stop the MR from relaxing the serving cell measurements. After the LP-WUR stops the serving cell measurement relaxation of the MR, the LP-WUR should wake up the MR even if the LP-WUR does not receive the LP-WUS from the network node.

In some embodiments, the LP-WUR may receive the LP-WUS to maintain serving cell measurements. The LP-WUS may include part or reduced information carried by the NR SSB, MIB, SIB1, or include paging messages for performing serving cell measurements.

In some embodiments, the LP-WUR may combine one or more LP-WUSs to measure serving cell quality. The number of LP-WUS may be configured by the network node through RRC, MAC-CE, and DCI formats received by the MR.

In some embodiments, the LP-WUR may determine the serving cell quality based on configurable thresholds received by the MR that are configured by the network node through RRC, MAC-CE, and DCI formats.

In some embodiments, if the LP-WUR receives the LP-WUS for paging or the LP-WUR identifies that the serving cell quality is below a configurable threshold provided by the network node, the MR may stop skipping or relaxing the serving cell measurements.

In some implementations, the MR may stop skipping or relaxing the serving cell measurements if the required conditions are not met.

In some embodiments, if the LP-WUR receives an indication from the network node, the MR may stop skipping or relaxing the serving cell measurements.

In some embodiments, if the LP-WUR sends an indication to the MR that the serving cell measurement is not allowed to be relaxed on the MR, the MR may stop skipping or relaxing the serving cell measurement.

In some embodiments, after the LP-WUR wakes up the MR for possible reasons (e.g., out of sync (i.e., not able to receive an always-on LP-WUS), low cell quality, receiving an LP-WUS or other indication in the data payload), the MR may stop skipping or relaxing the serving cell measurements.

In some embodiments, the MR may report its ability to support serving cell measurement relaxation and the ability to monitor and detect LP-WUS.

In the RRC connected mode, the UE may monitor a downlink power saving control signal (downlink control signal of power saving, DCP) to know whether to turn on an on duration timer of an upcoming DRX cycle. On the other hand, DCP cannot be used to adjust physical downlink control channel (physical downlink control channel, PDCCH) monitoring behavior during on-duration or without configuring DRX. In Extended Reality (XR) applications where timing jitter is large, a large on-duration timer may be used or DRX may not be configured. Thus, DCP cannot be used to reduce the power consumption of UE applications.

In some implementations, power Save (PS) adaptation (e.g., SSSG handover) may be reused. The network node may configure one UE-specific SSSG for LP-WUR monitoring LP-WUS and another SSSG for MR monitoring DCI.

FIG. 2 illustrates an example scenario 200 of Search Space Set Group (SSSG) switching under an approach according to an embodiment of the invention. Scenario 200 involves network nodes (e.g., macro and micro base stations) and UEs, which may be part of a wireless communication network (e.g., LTE network, 5G/NR network, ioT network, or 6G network). Referring to fig. 2, the ue may monitor LP-WUS in SSSG #0 via LP-WUR and monitor PDCCH in SSSG #1 via MR. In SSSG #0, the MR can go to microsleep (micro slee) and the LP-WUR can be turned on (i.e., remain on). In SSSG #1, the MR may perform PDCCH monitoring (and physical downlink shared channel (physical downlink SHARED CHANNEL, PDSCH) processing), and the LP-WUR may be turned off (i.e., remain turned off). If the LP-WUR detects a wake-up indication, the UE may switch from SSSG #0 to SSSG #1. If there is no new data after the SSSG timer (e.g., 4 ms) in SSSG #1, the UE may switch to SSSG #0.PS gain may be highly dependent on the time the UE stays in SSSG #0, where the MR may go into microsleep in SSSG #0.

When the LP-WUS is configured to be associated with one SSSG (e.g., SSSG # 0), the UE may not perform PDCCH monitoring of SSSG. In addition, the UE may monitor the LP-WUS to determine whether to perform SSSG a handover via the LP-WUR. The UE may determine the LP-WUS monitoring occasion by reusing the configuration of PDCCH monitoring occasions for SSSG (e.g., monitoringSlotPeriodicityAndOffset duration and monitoringSymbolsWithinSlot).

In some embodiments, LP-WUR may be monitored during SSSG #0 and MR may be monitored during SSSG #1.

The LP-WUR may monitor the LP-WUS in a configuration SSSG (e.g., SSSG # 0), where the configured SSSG is configured by the network node in ms or slot units based on the MR subcarrier spacing (sub-CARRIER SPACE, SCS) configuration. The LP-WUS may indicate a preconfigured SSSG handoff. If the LP-WUR indicates SSSG handover received from the network node, the MR can handover SSSG.

When LP-WUR detects LP-WUS and the value of SSSG handover flag field in LP-WUS is 0, for the serving cell, MR may start monitoring PDCCH according to the search space set with group index 0 and stop monitoring PDCCH according to the search space set with group index 1.

When LP-WUR detects LP-WUS and the value of SSSG handover flag field in LP-WUS is 1, for the serving cell, MR may start monitoring PDCCH according to the search space set with group index 1 and stop monitoring PDCCH according to the search space set with local group index 0.

When LP-WUR monitors LP-WUS of a serving cell according to a search space set with a group index of 1, for the serving cell, MR may start monitoring PDCCH of the serving cell according to a search space set with a group index of 0 and stop monitoring PDCCH according to a search space set with a group index of 1.

When LP-WUR detects LP-WUS by monitoring PDCCH according to a search space set with a group index of 0, MR may start monitoring PDCCH according to a search space set with a group index of 1 and stop monitoring PDCCH according to a search space set with a group index of 0 for a serving cell.

The MR may determine a slot and a symbol in the slot to start or stop PDCCH monitoring from the search space set of the serving cell. In an example, the network node may provide searchSpaceGroupIdList, UE to the UE a set of search spaces that may be obtained for the serving cell according to searchSpaceGroupIdList. In another example, if the network node provides cellGroupsForSwitchList to the UE, the UE may obtain a set of search spaces for a set of serving cells according to cellGroupsForSwitchList. According to the configuration in searchSpaceGroupIdList or cellGroupsForSwitchList, the MR can determine the slots and symbols in the slots and start or stop PDCCH monitoring based on the smallest SCS configuration μ in DL (bandwidth part) BWP of all configurations in the serving cell or in the serving cell set. In a serving cell where the UE receives PDCCH, the UE may detect a corresponding LP-WUS for triggering start or stop of PDCCH monitoring from the set of search spaces.

When the LP-WUS received by the LP-WUR indicates that the MR needs to start PDCCH monitoring according to the search space set having the first group index and stop PDCCH monitoring according to the search space set having the second group index, the MR may perform an operation based on the indication.

When the LP-WUS received by the LP-WUR indicates that PDCCH monitoring in the duration of the active DL BWP of the serving cell needs to skip, the MR may start skipping PDCCH monitoring at the beginning of the first slot after the last symbol of PDCCH reception providing the DCI format with the PDCCH monitoring adaptation field.

In some embodiments, the MR may transmit a PUCCH providing a positive scheduling request (scheduling request, SR) after the MR detects a DCI format providing a PDCCH monitoring adaptation field. The DCI format providing the PDCCH monitoring adaptation field may indicate to the MR that PDCCH monitoring needs to be skipped for the duration of the active DL BWP of the serving cell. In an embodiment, the MR may resume PDCCH monitoring starting at the beginning of the first slot after the last symbol of the PUCCH transmission.

Illustrative embodiments

Fig. 3 illustrates an example communication system 300 having at least an example communication device 310 and an example network device 320, in accordance with implementations of the invention. Each of the communication device 310 and the network device 320 may perform various functions to implement the schemes, techniques, procedures and methods described herein with respect to activating or deactivating LP-WUS monitoring in mobile communications, including the various proposed designs, concepts, schemes and methods described above and the various schemes described above with respect to user equipment and network devices in mobile communications, including the scenarios/schemes described above and the procedures 400 and 500 described below.

The communication device 310 may be part of an electronic device, which may be a UE such as a portable device or a mobile device, a wearable device, a wireless communication device, or a computing device. For example, the communications apparatus 310 can be implemented in a smart phone, a smart watch, a personal digital assistant, a digital camera, or a computing device such as a tablet computer, laptop computer, or notebook computer. The communication device 310 may be part of a machine-type device, which may be an IoT, NB-IoT or IIoT device, such as a non-mobile device or a fixed device, a home device, a wired communication device, or a computing device. For example, the communication device 310 may be implemented in a smart thermostat, a smart refrigerator, a smart door lock, a wireless speaker, or a home control center. Alternatively, the communication device 310 may be implemented in the form of one or more integrated-circuit (IC) chips, such as, but not limited to, one or more single-core processors, one or more multi-core processors, one or more reduced-instruction-set-instruction set computing (RISC) processors, or one or more complex-instruction-set-computing (CISC) processors. Communication device 310 may include at least some of those components shown in fig. 3, for example, processor 312. The communications apparatus 310 can include one or more other components (e.g., an internal power source, a display device, and/or a user device interface device) that are not relevant to the proposed solution of the present invention, and thus, for simplicity and brevity, such components of the communications apparatus 310 are neither shown in fig. 3 nor described below.

Network device 320 may be part of a network device that may be a network node such as a satellite, a base station, a small cell, a router, or a gateway. For example, the network apparatus 320 may be implemented in an evolved node B (eNodeB) in an LTE network, in a gNB of a 5G/NR, ioT, NB-IoT or IIoT network, in a satellite, or in a base station of a 6G network. Alternatively, network device 320 may be implemented in the form of one or more IC chips, such as, but not limited to, one or more single-core processors, one or more multi-core processors, one or more RISC processors, or one or more CISC processors. Network device 320 may include at least some of those components shown in fig. 3, such as processor 322. The network apparatus 320 may include one or more other components (e.g., internal power supplies, display devices, and/or user device interface devices) not relevant to the proposed solution of the present invention, and thus, for simplicity and brevity, such components of the network apparatus 320 are neither shown in fig. 3 nor described below.

In one aspect, each of processor 312 and processor 322 may be implemented in the form of one or more single-core processors, one or more multi-core processors, one or more RISC processors, or one or more CISC processors. That is, even though the singular term "processor" is used herein to refer to the processor 312 and the processor 322, each of the processor 312 and the processor 322 according to the present invention may include multiple processors in some embodiments and a single processor in other embodiments. In another aspect, each of the processor 312 and the processor 322 may be implemented in hardware (and optionally firmware) having electronic components including, for example, but not limited to, one or more transistors, one or more diodes, one or more capacitors, one or more registers, one or more inductors, one or more memristors (memristor), and/or one or more varactors, configured and arranged to achieve particular objects in accordance with the invention. In other words, in at least some embodiments, each of processor 312 and processor 322 is a special purpose machine specifically designed, configured, and configured to perform specific tasks including autonomous reliability enhancement in devices (e.g., represented by communication apparatus 310) and networks (e.g., represented by network apparatus 320) according to various embodiments of the present invention.

In some implementations, the communication device 310 may also include a transceiver 316 coupled to the processor 312. The transceiver 316 is capable of wirelessly transmitting data and receiving data. Transceiver 316 may include a primary radio and LP-WUR. In some implementations, the communication device 310 may also include a memory 314 coupled to the processor 312 and capable of being accessed by the processor 312 and storing data therein. In some implementations, the network device 320 may also include a transceiver 316 coupled to the processor 322. The transceiver 316 is capable of wirelessly transmitting data and receiving data. In some implementations, the network device 320 may also include a memory 324 coupled to the processor 322 and capable of being accessed by the processor 322 and storing data therein. Accordingly, communication device 310 and network device 320 may communicate wirelessly with each other via transceiver 316 and transceiver 326, respectively. To facilitate a better understanding, the following description of the operation, functionality, and capabilities of each of the communication device 310 and the network device 320 is provided in the context of a mobile communication environment, with the communication device 310 being implemented in or as a communication device or UE, and the network device 320 being implemented in or as a network node of a communication network.

In some implementations, the processor 316 may receive the configuration from the network device 320 via the transceiver 316. Wherein the transceiver 316 of the communication device 310 may include MR and LP-WUR. The processor 312 may determine whether to activate or deactivate LP-WUS monitoring by the LP-WUR based on at least one pre-configured condition in the configuration. In the event that LP-WUS monitoring is enabled, processor 312 may receive LP-WUS from network device 320 via the LP-WUR.

In some embodiments, the processor 312 may offload RRM measurements from the MR to the LP-WUR if LP-WUS monitoring is activated.

In some embodiments, the at least one pre-configured condition may include LP-WUS being a periodic reference signal for LR measurement.

In some embodiments, the processor 312 may deactivate LP-WUS monitoring on the LP-WUR in the event RRM measurements in the MR are relaxed. The processor 312 may perform measurements via the MR in a relaxed period.

In some embodiments, the processor 312 may disable LP-WUS monitoring on the LP-WUR if the result of the LP-WUS based measurement on the LP-WUR is below a threshold. The processor 312 may perform the measurements via MR.

In some embodiments, the processor 312 may determine whether to activate or deactivate LP-WUS monitoring by the LP-WUR based on channel conditions.

In some embodiments, the channel conditions may include adequate or insufficient coverage of the LP-WUS.

In some embodiments, processor 322 may determine a configuration, where the configuration may include at least one preconfigured condition for activating or deactivating LP-WUS monitoring. The processor 322 may send the configuration to the communication device 310 via the transceiver 326. In the event that LP-WUS monitoring is activated, processor 322 may transmit LP-WUS to communication device 310 via transceiver 326.

In some embodiments, the at least one pre-configured condition may include relaxing RRM measurements for MR of communication device 310.

In some embodiments, the at least one pre-configured condition may include a result of the LP-WUS based measurement on the LP-WUR of the communication device 310 being below a threshold.

In some embodiments, the at least one pre-configured condition may include a channel condition.

In some embodiments, the channel conditions may include channel conditions that may include adequate or insufficient coverage of the LP-WUS.

Illustrative flow

FIG. 4 illustrates an example flow 400 according to an implementation of the invention. The flow 400 may be an example implementation of the scenario/scenario described above, which is related, in part or in whole, to LP-WUS monitoring in accordance with the present invention. Flow 400 may represent an aspect of an implementation of features of communication device 310. The flow 400 may include one or more operations, actions, or functions as illustrated by one or more of blocks 410, 420, and 430. While illustrated as discrete blocks, the various blocks of flow 400 may be divided into additional blocks, combined into fewer blocks, or deleted, depending on the desired implementation. Further, the blocks/sub-blocks of flowchart 400 may be performed in the order shown in fig. 4, or alternatively in a different order. The process 400 may be implemented by the communication apparatus 310 or any UE or machine type device. For purposes of illustration only and not to limit the scope, the flow 400 may be described in the context of the communication device 310 below. The flow 400 may begin at block 410.

At block 410, the flow 400 may involve the processor 312 of the communication device 310 receiving a configuration from a network node, wherein the communication device 310 may include an MR and an LP-WUR. Flow 400 may proceed from block 410 to block 420.

At block 420, the process 400 may involve the processor 312 determining whether to activate or deactivate LP-WUS monitoring by the LP-WUR based on at least one pre-configured condition in the configuration. Flow 400 may proceed from block 420 to block 430.

At block 430, the process 400 may involve the processor 312 receiving the LP-WUS from the network node via the LP-WUR if the LP-WUS monitoring is activated.

In some implementations, the process 400 may involve the processor 312 offloading RRM measurements from the MR to the LP-WUR if LP-WUS monitoring is activated. The at least one pre-configured condition may include that LP-WUS is a periodic reference signal for LR measurement.

In some embodiments, the process 400 may involve the processor 312 disabling LP-WUS monitoring on the LP-WUR if RRM measurements in the MR are relaxed, and performing the measurements via the MR in a relaxed period.

In some embodiments, the process 400 may involve the processor 312 disabling LP-WUS monitoring on the LP-WUR if the result of the LP-WUS based measurement on the LP-WUR is below a threshold and performing the measurement via the MR.

In some embodiments, the process 400 may involve the processor 312 determining whether to activate or deactivate LP-WUS monitoring by the LP-WUR based on channel conditions. Channel conditions may include adequate or insufficient coverage of the LP-WUS.

FIG. 5 illustrates an example flow 500 according to an implementation of the invention. The process 500 may be an example implementation of the scenario/scenario described above, which is related, in part or in whole, to LP-WUS monitoring in accordance with the present invention. Flow 500 may represent an aspect of an implementation of features of network device 320. The flow 500 may include one or more operations, actions, or functions as illustrated by one or more of blocks 510, 520, and 530. While illustrated as discrete blocks, the various blocks of flow 500 may be divided into additional blocks, combined into fewer blocks, or deleted, depending on the desired implementation. Further, the blocks/sub-blocks of flowchart 500 may be performed in the order shown in fig. 5, or alternatively in a different order. The flow 500 may be implemented by the network device 320 or any suitable base station or network node. For purposes of illustration only and not to limit the scope, the flow 500 may be described in the context of the network device 320 below. The flow 500 may begin at block 510.

At block 510, the flow 500 may involve the processor 322 of the network device 320 determining a configuration, wherein the configuration includes at least one preconfigured condition for activating or deactivating LP-WUS monitoring. Flow 500 may proceed from block 510 to block 520.

At block 520, the flow 500 may involve the processor 322 transmitting the configuration to the communication device 310 via the transceiver 326. Flow 500 may proceed from block 520 to block 530.

At block 530, the process 500 may involve the processor 322 transmitting the LP-WUS to the communication device 310 via the transceiver 326 with the LP-WUS monitoring activated.

Additional annotations

The subject matter described herein sometimes illustrates different components contained within or connected with different other components. It is to be understood that such depicted architectures are merely examples, and that in fact many other architectures can be implemented which have the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively "associated" such that the desired functionality is achieved. Thus, any two components herein combined to achieve a particular functionality can be seen as "associated with" each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being "operably connected," or "operably coupled," to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being "operably coupled," to each other to achieve the desired functionality. Specific examples of operably coupled include, but are not limited to, physically mateable and/or physically interacting components and/or wirelessly interactable and/or wirelessly interacting components and/or logically interactable components.

Furthermore, with respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. For clarity, various singular/plural permutations may be explicitly set forth herein.

Furthermore, those skilled in the art will understand that, in general, terms used herein, and especially in the appended claims, such as the main body of the appended claims, are generally intended as "open" terms, e.g., the term "comprising" should be interpreted as "including but not limited to," the term "having" should be interpreted as "having at least," and the term "comprising" should be interpreted as "including but not limited to. Those skilled in the art will further understand that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, even when the same claim includes the introductory phrases "one or more" or "at least one" and indefinite articles such as "a" or "an", the use of such phrases should not be interpreted to imply that the introduction of a claim recitation by the indefinite articles "a" or "an" limits any particular claim containing such introduced claim recitation to embodiments containing only one such recitation, e.g., "a" and/or "an" should be interpreted to mean "at least one" or "one or more", as the same applies to the use of the indefinite articles introduced into a claim recitation. Furthermore, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should be interpreted to mean at least the recited number, and the bare recitation of "two recitations," without other modifiers, for example, means at least two recitations, or two or more recitations. Furthermore, in those cases where a convention analogous to "at least one of A, B, and C, etc." is used, in general such a construction is intended in the sense one having ordinary skill in the art would understand the convention, such as "a system having at least one of A, B and C" would include, but not be limited to, a system having A alone, B alone, C, A alone and B together, A and C together, B and C together, and/or A, B and C together, etc. In those instances where a convention analogous to "at least one of A, B or C" is used, typically such a construction is intended in the sense that one skilled in the art would understand the convention, for example, "a system having at least one of A, B or C" would include, but is not limited to, a system having a alone, B alone, C, A and B together, a and C together, B and C together, and/or A, B and C together. Those skilled in the art will further appreciate that, in practice, any distinguishing word and/or phrase presenting two or more alternative terms, whether in the specification, claims, or drawings, should be understood to encompass the possibility of including one of the terms, either of the terms, or both terms. For example, the phrase "a or B" will be understood to include the possibilities of "a" or "B" or "a and B".

From the foregoing, it will be appreciated that various embodiments of the invention have been described herein for purposes of illustration, and that various modifications may be made without deviating from the scope and spirit of the invention. Therefore, the various embodiments disclosed herein are not intended to be limiting, with the true scope and spirit being indicated by the following claims.

Claims

1. A method for low power wake-up signal monitoring in mobile communications, comprising:

A processor of a user equipment receives a configuration from a network node, wherein the user equipment comprises a primary radio and a low power wake-up radio;

the processor determining whether to activate or deactivate low power wake-up signal monitoring by the low power wake-up radio in accordance with at least one pre-configured condition in the configuration; and

The processor receives a low power wake-up signal from the network node via the low power wake-up radio, in case the low power wake-up signal monitoring is activated.

2. The method for low power wake-up signal monitoring in mobile communication of claim 1, further comprising:

in the event that the low power wake-up signal monitoring is activated, the processor offloads radio resource management measurements from the primary radio to the low power wake-up radio.

3. The method for low power wake-up signal monitoring in mobile communication according to claim 2, wherein the at least one pre-configured condition comprises the low power wake-up signal being a periodic reference signal for low power radio measurements.

4. The method for low power wake-up signal monitoring in mobile communication of claim 1, further comprising:

In case the radio resource management measurements in the primary radio are relaxed,

The processor disabling the low power wake-up signal monitoring on the low power wake-up radio; and

The processor performs measurements via the primary radio at relaxed periods.

5. The method for low power wake-up signal monitoring in mobile communication of claim 1, further comprising:

In case the result of the measurement based on the low power wake-up signal on the low power wake-up radio is below a threshold,

The processor performs measurements via the primary radio.

6. The method for low power wake-up signal monitoring in mobile communication of claim 1, further comprising:

the processor determines whether to activate or deactivate the low power wake-up signal monitoring by the low power wake-up radio based on channel conditions.

7. The method for low power wake-up signal monitoring in mobile communication of claim 6, wherein the channel condition comprises sufficient or insufficient coverage of the low power wake-up signal.

8. An apparatus for low power wake-up signal monitoring in mobile communications, comprising:

A transceiver configured to wirelessly communicate with at least one network node during operation, and the transceiver comprising a primary radio and a low power wake-up radio; and

A processor communicatively coupled to the transceiver such that during operation, the processor performs the following:

Receiving a configuration from the network node via the transceiver;

Determining whether to activate or deactivate low power wake-up signal monitoring by the low power wake-up radio according to at least one pre-configured condition in the configuration; and

In the event that the low power wake-up signal monitoring is activated, a low power wake-up signal is received from the network node via the low power wake-up radio via the transceiver.

9. The apparatus for low power wake-up signal monitoring in mobile communication of claim 8, wherein the processor is further configured to:

in the event that the low power wake-up signal monitoring is activated, radio resource management measurements are offloaded from the primary radio to the low power wake-up radio.

10. The apparatus for low power wake-up signal monitoring in mobile communication of claim 9, wherein the at least one pre-configured condition comprises the low power wake-up signal being a periodic reference signal for low power radio measurements.

11. The apparatus for low power wake-up signal monitoring in mobile communication of claim 8, wherein the processor is further configured to:

Disabling the low power wake-up signal monitoring on the low power wake-up radio; and

The measurement is performed at a relaxed period via the primary radio.

12. The apparatus for low power wake-up signal monitoring in mobile communication of claim 8, wherein the processor is further configured to:

Measurements are performed via the primary radio.

13. The apparatus for low power wake-up signal monitoring in mobile communication of claim 8, wherein the processor is further configured to:

whether to activate or deactivate the low power wake-up signal monitoring by the low power wake-up radio is determined according to channel conditions.

14. The apparatus for low power wake-up signal monitoring in mobile communication of claim 13, wherein the channel condition comprises sufficient or insufficient coverage of the low power wake-up signal.

15. A method for low power wake-up signal monitoring in mobile communications, comprising:

A processor of the network node determining a configuration, wherein the configuration comprises at least one pre-configured condition for activating or deactivating low power wake-up signal monitoring;

the processor sending the configuration to the user device; and

The processor sends a low power wake-up signal to the user equipment in the event that the low power wake-up signal monitoring is activated.

16. The method for low power wake-up signal monitoring in mobile communication of claim 15, wherein the at least one pre-configured condition includes the low power wake-up signal being a periodic reference signal for low power radio measurements.

17. The method for low power wake-up signal monitoring in mobile communication according to claim 15, wherein the at least one pre-configured condition comprises radio resource management measurements in the primary radio for the user equipment being relaxed.

18. The method for low power wake-up signal monitoring in mobile communication according to claim 15, wherein the at least one pre-configured condition comprises a result of a measurement based on the low power wake-up signal on the low power wake-up radio of the user equipment being below a threshold.

19. The method for low power wake-up signal monitoring in mobile communication of claim 15, wherein the at least one pre-configured condition comprises a channel condition.

20. The method for low power wake-up signal monitoring in mobile communication of claim 19, wherein the channel condition comprises sufficient or insufficient coverage of the low power wake-up signal.