Method executed by user equipment, and user equipment

Abstract

Provided in the present disclosure are a method executed by a user equipment, and a user equipment. The method comprises: determining whether a first timer is in a running state, wherein the first timer is started when a user equipment is configured with an idle measurement configuration for quickly configuring idle measurement of AC / DC for the user equipment; and when the first timer is not in the running state, enabling a low-power wake-up receiver (LP-WUR) to measure a serving cell and / or a neighboring cell.

Description

Method performed by user equipment and user equipment TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of wireless communication, and more particularly, the present disclosure relates to a method performed by a user equipment and a corresponding user equipment. BACKGROUND

[0002] User equipment energy saving is beneficial to prolong the endurance time of the user equipment, prolong the service life of the battery, and reduce the charging frequency, etc. Although the existing energy saving technology can meet the above energy saving requirements to a certain extent, it generally has the defect of large user equipment service delay. Based on the above reasons, the 3rd Generation Partnership Project (3GPP) approved the NR LP-WUS / WUR work item for Release 19 at the RAN plenary, the content of which can be found in Non-Patent Document: RP-234056 WID: Low-power wake-up signal and receiver for NR (LP-WUS / WUR). The main goal of this work item is to introduce a low-power receiver (which can be referred to as LR or LP-WUR) to detect a low-power wake-up signal (LP-WUS) transmitted by a base station for PDCCH and paging monitoring, and to introduce an LP-SS for low-power receiver to perform serving cell measurements. When there is no data transmission, the master receiver (MR) of the user equipment remains in a sleep state to reduce the power consumption of the user equipment, and when there is data to be transmitted, the user equipment wakes up the master receiver MR and performs corresponding data processing. The low-power receiver can perform serving cell measurements based on the LP-SS, which can make the MR relax the measurements or not perform the measurements to enter the sleep state, thereby achieving the purpose of user equipment energy saving and reducing service delay. SUMMARY

[0003] The present disclosure aims at least to provide a method capable of properly enabling a low-power receiver and a user equipment performing the method.

[0004] According to an aspect of the present disclosure, a method performed by a user equipment in an RRC idle state or an RRC inactive state is provided, comprising: determining whether a first timer is in a running state, the first timer being started when the user equipment is configured with an idle measurement configuration for quickly configuring AC / DC for the user equipment; and when the first timer is not in the running state, enabling a low-power receiver LP-WUR to perform measurements on a serving cell and / or a neighbor cell.

[0005] Optionally, the method further comprises performing the idle measurement when at least one of the following conditions is met: the first timer is running; the user equipment is using a main receiver, MR, for measurements; the user equipment is not using a LP-WUR for measurements; the user equipment is not listening for low power synchronization signal, LP-SS.

[0006] Optionally, the method further comprises performing at least one of the following when the first timer is running: not using a LP-WUR for measurements; not using a LP-WUR for serving cell measurements; not listening for low power synchronization signal, LP-SS; not measuring a LP-SS.

[0007] Optionally, the LP-WUR is an on-off keying, OOK, based LP-WUR.

[0008] Optionally, the method further comprises performing the idle measurement using an OFDM based LP-WUR when at least one of the following conditions is met: the user equipment is configured with an OFDM based LP-WUR configuration; the user equipment is configured with the idle measurement configuration; the user equipment is configured with a NR inter-frequency carrier for which the idle measurement is required; the user equipment receives a LP-WUR idle measurement indication indicating that the idle measurement is allowed to be performed using a LP-WUR; the user equipment receives an OFDM based LP-WUR idle measurement indication indicating that the idle measurement is allowed to be performed using an OFDM based LP-WUR; a quality of a serving cell is above a threshold; the first timer is running.

[0009] Optionally, the method further comprises performing a neighbor cell measurement using an OFDM based LP-WUR when at least one of the following conditions is met: the user equipment is configured with an OFDM based LP-WUR configuration; the user equipment, UE, is configured with a neighbor cell measurement; the user equipment is configured with a LP-WUR measurement neighbor cell indication; the user equipment is configured with an OFDM based LP-WUR measurement neighbor cell indication; the user equipment is configured with a LP-WUR measurement neighbor cell indication indicating that the neighbor cell measurement is allowed to be performed using a LP-WUR; the user equipment is configured with an OFDM based LP-WUR measurement neighbor cell indication indicating that the neighbor cell measurement is allowed to be performed using an OFDM based LP-WUR; a quality of a serving cell is above a threshold.

[0010] Optionally, the method further comprises: receiving an LP-WUR high priority relaxed measurement indication indicating whether relaxed measurement on the LP-WUR high priority carrier is allowed; and in a case that the LP-WUR high priority relaxed measurement indication allows relaxed measurement on the LP-WUR high priority carrier, performing at least one of the following first relaxed measurement requirements when a given condition indicating that the user equipment is performing LP-WUR based measurement is met: the user equipment measures high priority carriers at least every K*T time, the number of the high priority carriers being one or more, wherein K is 120, 240, 360 or 480, and T = 60*N seconds, N being the total number of high priority carrier frequencies; the user equipment measures high priority carriers at least every M*DRX cycle, wherein the DRX cycle is configured by a base station, is a DRX cycle in an RRC idle state and an RRC active state, and M represents the number of DRX cycles; a minimum speed at which the user equipment measures high priority carriers is the same as a minimum speed at which the user equipment measures carriers of the same priority and low priority carriers; the minimum speed at which the user equipment measures high priority carriers is an integer multiple of the minimum speed at which the user equipment measures carriers of the same priority and low priority carriers; the minimum speed at which the user equipment measures carriers of the same priority and low priority carriers is an integer multiple of the minimum speed at which the user equipment measures high priority carriers; and the minimum speed is a minimum time interval for performing measurement on a carrier.

[0011] Optionally, the given condition comprises at least one of the following conditions: the user equipment is performing measurement using LP-WUR; the user equipment is performing measurement using LP-SS; the user equipment is listening to LP-SS; and the user equipment is performing measurement using OOK based LP-WUR.

[0012] Optionally, the method further comprises: in a case that the user equipment is not configured the LP-WUR high priority relaxed measurement indication, the user equipment measures high priority carriers at least every T time.

[0013] According to another aspect of the present disclosure, a user equipment is also provided, comprising: a processor; and a memory storing instructions; wherein the instructions, when executed by the processor, perform the method as described above.

[0014] According to the method of the present disclosure, a low power receiver can be properly enabled without conflicting with idle measurement for quickly configuring AC / DC for a user equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] FIG. 1 is a flowchart of a method performed by a user equipment according to one embodiment of the present disclosure.

[0016] FIG. 2 is a flowchart of a method performed by a user equipment according to another embodiment of the disclosure.

[0017] FIG. 3 is a flowchart of a method performed by a user equipment according to another embodiment of the disclosure.

[0018] FIG. 4 is a flowchart of a method performed by a user equipment according to another embodiment of the disclosure.

[0019] FIG. 5 is a brief structural block diagram of a user equipment UE according to the disclosure. DETAILED DESCRIPTION

[0020] The disclosure will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the disclosure should not be limited to the specific embodiments described below. In addition, for the sake of simplicity, detailed descriptions of well-known technology that is not directly related to the disclosure are omitted to prevent obscuring the understanding of the disclosure.

[0021] Some terms related to the disclosure are described below, and the specific meanings of the terms are found in the latest 3GPP standard specification,

[0022] UE: User Equipment

[0023] NR: New Radio

[0024] MAC: Medium Access Control

[0025] MAC CE: MAC control element

[0026] RRC: Radio Resource Control

[0027] RRC_CONNECTED: RRC connected state

[0028] RRC_INACTIVE: RRC inactive state

[0029] RRC_IDLE: RRC idle state

[0030] RAN: Radio Access Network

[0031] PDCCH: Physical downlink control channel

[0032] PUCCH: Physical Uplink Control Channel

[0033] PUSCH: Physical Uplink Shared Channel

[0034] PBCH: Physical broadcast channel

[0035] SFN: System Frame Number

[0036] PDU: Protocol Data Unit

[0037] SSB: SS / PBCH block

[0038] DCI: Downlink Control Information

[0039] C-RNTI: Cell Radio Network Temporary Identifier

[0040] RSRP: Reference Signal Received Power

[0041] RSRQ: Reference Signal Received Quality

[0042] SpCell: Special Cell, including PCell and PSCell

[0043] DC: Dual Connectivity

[0044] MCG: Master Cell Group

[0045] SCG: Secondary Cell Group

[0046] PCell: Primary Cell

[0047] PSCell: Primary SCG Cell

[0048] MIB: Master Information Block

[0049] DRX: Discontinuous Reception

[0050] SIB: System Information Block

[0051] gNB: the next Generation Node B

[0052] RLF: Radio Link Failure

[0053] SN: Sequence Number

[0054] CN: Core Network

[0055] SR: Scheduling Request

[0056] UL-SCH: Uplink Shared Channel

[0057] CSI: Channel State Information

[0058] SRS: Sounding Reference Signal

[0059] HARQ: Hybrid Automatic Repeat Request

[0060] MR: main receiver

[0061] LP: Low Power

[0062] WUS: wake up signal

[0063] WUR: wake up receiver

[0064] LR: low power receiver

[0065] LP-SS: Low Power Synchronisation Signal

[0066] LP-WUR: low power wake up receiver

[0067] OFDM: Orthogonal Frequency Division Multiplexing

[0068] OOK: On-and-Off Keying

[0069] In the present disclosure, network (or NW), base station (or gNB or eNB) and RAN can be used interchangeably, which can be a long term evolution (LTE) network, a new radio access technology (NR) network, an enhanced long term evolution (eLTE) network, or other network defined in later evolution versions of 3GPP.

[0070] In the present disclosure, user equipment (UE) can refer to a device supporting user energy saving, or a device supporting LP-WUS and / or LP-WUR and / or LP-SS, or other types of NR devices or LTE devices.

[0071] In the present disclosure, "feedback", "submit", "report", "send", "transmit", "inform", "indicate", "provide" can be used interchangeably.

[0072] In the present disclosure, "use", "be available", "apply", "implement", "enable", "active", "perform", "do" and the like can be used interchangeably.

[0073] In the present disclosure, "associate", "correspond", "map" can be used interchangeably.

[0074] In the present disclosure, "receive", "detect", "monitor", "acquire", "derive" can be used interchangeably.

[0075] In the present disclosure, "non-active", "deactive", "disable", "stop", "exit", "deactivate" can be used interchangeably.

[0076] In the present disclosure, "active", "start", "enable", "use", "enter", "wake up", "start using" can be used interchangeably.

[0077] In the present disclosure, “time” can be time, duration, period, time period, etc., which can be used interchangeably.

[0078] In the present disclosure, “effective” and “obtainable” can be used interchangeably.

[0079] In the present disclosure, “LP-WUR”, “LR”, “WUR” can be used interchangeably.

[0080] In the present disclosure, “idle / inactive measurement”, “idle mode CA / DC measurement”, ““idle / inactive CA / DC measurement” can be used interchangeably.

[0081] In the present disclosure, “high priority” and “higher priority” can be used interchangeably.

[0082] In the present disclosure, “idle / inactive measurement” refers to measurement in RRC idle state and / or RRC inactive state for CA / DC.

[0083] In the present disclosure, “priority” and “cell reselection priority” can be used interchangeably.

[0084] It should be noted that in the present specification, two connected by “and”, “or”, “and / or” can represent different expressions of the same intention in different application scenarios, and there may be a relationship between inclusion and being included, not necessarily referring to completely different content.

[0085] Hereinafter, the related art of the present disclosure is described.

[0086] In the NR network, when there is no data transmission, the user equipment (UE) can also maintain the data connection with the network to realize the online network service at any time. For example, the user equipment in idle state or inactive state detects whether the network sends the paging information to itself regularly, which requires the user equipment to detect the related paging information regularly, even if the paging information does not indicate the data transmission with the user equipment or the paging message is irrelevant to the user equipment. Such behavior will consume a lot of user equipment power, thereby affecting the service life of the battery and reducing the user experience.

[0087] A user equipment can use a low power (LP) auxiliary receiver to detect a low power wake-up signal (LP-WUS) transmitted by a base station. The low power auxiliary receiver can also be referred to as a low power receiver (LR), or a low power wake-up receiver (LP-WUR), or a receiver for receiving the LP-WUS. When there is no data transmission, the main receiver (MR) of the user equipment remains in a sleep state to reduce the power consumption of the user equipment.

[0088] In RRC_IDLE (idle) state and RRC_INACTIVE (inactive) state, when there is downlink data to be transmitted, the network will send a paging message to the UE. After the introduction of the LP-WUS, the UE determines whether to wake up the MR to listen to the paging and when to listen to the paging according to the information indicated by the LP-WUS, and performs corresponding data transmission. The LP-WUS signal indicates relevant information required for waking up the user equipment, for example, the indication information includes UE identification (ID), group information where the UE is located, etc., and the UE can determine whether the UE is woken up by the LP-WUS according to the indication. Only when the LP-WUR of the UE detects the wake-up indication information (LP-WUS or contained in the LP-WUS) for the UE, the UE wakes up the MR to perform related processing, for example, detecting the paging PDCCH on the associated paging opportunity, or performing PRACH preamble transmission in the corresponding window, etc. In this way, the user equipment can maintain the connection with the network with very small power consumption and reduce the network response delay. However, at the same time, the coverage range of the LP-WUS can be small, and the user equipment can only listen to the LP-WUS when it is close to the base station.

[0089] In RRC_CONNECTED (connected) state, generally, if connected state DRX is configured, the UE only listens to the PDCCH in the DRX active time, and does not listen to the PDCCH at other times. The UE starts the on-duration timer periodically according to the period of the DRX, and needs to listen to the PDCCH during the running of the on-duration timer. After the introduction of the LP-WUS, the LP-WUS is used to trigger the UE to listen to the PDCCH. Since it is not necessary to listen to the PDCCH periodically, the power consumption of the UE is saved.

[0090] In NR, UE needs to perform periodic measurements on serving cell and neighbor cells to obtain cell quality in order to know the network quality. After introducing LR-WUR, when UE uses LP-WUR, UE can use the LP-WUR to measure the serving cell. When UE uses MR, UE can use the MR to measure the serving cell. There are two types of LP-WUR: one is based on OOK, and the other is based on OFDM. When using OOK-based LP-WUR, UE listens to the low power synchronization signal (LP-SS) sent by the base station, measures the LP-RSRP and LP-RSRQ, and thus obtains the quality of the serving cell. When using OFDM-based LP-WUR, UE listens to the SSB sent by the base station, measures the SS-RSRP and SS-RSRQ, and thus obtains the quality of the serving cell. Since the power consumption of LR-WUR is lower than that of MR, using LP-WUR for measurement can achieve the purpose of reducing power consumption.

[0091] When using LP-WUR, neighbor cell measurement can not be performed, or neighbor cell measurement can be relaxed (e.g., by lengthening the interval between measurements). OOK-based LP-WUR is only used for serving cell measurement, and cannot be used for neighbor cell measurement. In this case, UE can only use MR to measure the quality of the neighbor cell.

[0092] For when to enable LP-WUR, one possible method is to determine according to the quality of the serving cell. If the current serving cell is a good quality cell, for example, the cell quality of the current serving cell measured based on MR and / or LP-WUR is higher than a certain threshold value, then UE can enable LP-WUR, and can also stop MR, or MR enters hibernation. If the quality of the current serving cell becomes poor, for example, the cell quality of the current serving cell measured based on MR and / or LP-WUR is lower than a certain threshold value, then UE can wake up MR, and at the same time disable LP-WUR.

[0093] Relaxed measurement

[0094] In 3GPP Release 16, relaxed measurement for neighbor cell measurement is standardized and defined in the latest 3GPP standard specification TS 38.304 (see section 5.2.4.9). The criteria for relaxed measurement include: low mobility criterion, non-cell edge criterion. When UE is required to perform neighbor cell measurement, after UE obtains the neighbor cell measurement result, UE performs evaluation of the low mobility criterion and the non-cell edge criterion to determine whether relaxed measurement can be performed.

[0095] Low mobility criterion: (Srxlev Ref -Srxlev)<S searchDeltaP . Wherein, Srxlev RefSrxlev is the reference received level value (RSRP) of the serving cell; Srxlev is the current received level value (RSRP) of the serving cell, S SearchDeltaP A threshold value configured by the network for evaluating the low mobility criterion. If the UE satisfies the low mobility criterion within a period of time (e.g., T SearchDeltaP If the low mobility criterion is satisfied, the UE can perform relaxed measurement for neighbor cell measurement.

[0096] Non-cell edge criterion: Srxlev > S SearchThresholdP , and Squal > S SearchThresholdQ . Wherein Srxlev is the current received level value (RSRP) of the serving cell, Squal is the current quality value of the serving cell, S SearchThresholdP RSRP threshold value configured by the network for evaluating the non-cell edge criterion, S SearchThresholdQ RSRQ threshold value configured by the network for evaluating the non-cell edge criterion. If the UE satisfies the non-cell edge criterion, the UE performs relaxed measurement for neighbor cell measurement.

[0097] The base station broadcasts the configuration parameters of relaxed measurement in RRC idle state and RRC inactive state through system message, including the switch of low mobility evaluation and non-cell edge evaluation, the evaluation threshold and evaluation time parameters of low mobility criterion and non-cell edge criterion, etc.

[0098] When the UE performs relaxed measurement, the relaxed measurement factor can be added on the basis of normal measurement, or a different measurement factor (e.g., a larger measurement factor than the normal measurement) is used to increase the time interval of measurement and / or increase the time interval of measurement evaluation.

[0099] Idle / inactive measurement

[0100] In order to enable fast CA / DC configuration for UE in RRC connected state, the base station can let UE measure specified carriers / frequencies in RRC idle state and RRC inactive state, UE save the measurement results and send the measurement results to the base station after entering RRC connected state, so that the base station can quickly configure CA / DC for UE using the neighbor cell measurement results measured by UE in RRC idle state and RRC inactive state, for example, quickly add SCell and PSCell. The base station sends a system message and / or an RRCRelease message to the UE, which can contain idle measurement configuration (e.g. measIdleConfig), carrier / frequency information (e.g. carrier / frequency list) configured for UE idle / inactive measurement, time information (e.g. measIdleDuration), etc. UE measures the idle / inactive measurement carriers / frequencies in RRC idle state and RRC inactive state and saves the measurement results. The base station sends an RRCRelease message to the UE. The UE determines whether the received RRCRelease message contains idle measurement configuration, the configuration is set to setup and / or the RRCRelease message contains measIdleDuration, and starts a timer T331, the value of T331 is set to measIdleDuration. During the running of T331, UE performs idle / inactive measurement in RRC connected state and RRC inactive state. When UE enters RRC connected state, it can send an RRCSetupComplete message or an RRCResumeComplete message to the base station, and carry an indication of whether the idle / inactive measurement result is valid in the message, and report the saved idle / inactive measurement result to the base station when required by the base station. Or UE can also report the saved idle / inactive measurement result to the base station in the RRCResumeComplete message.

[0101] The carriers / frequencies of idle / inactive measurement are inter-frequency carriers, and for UE in RRC idle state and RRC inactive state, inter-frequency carrier measurement is neighbor cell measurement.

[0102] High priority inter-frequency measurement

[0103] In RRC idle state and RRC inactive state, inter-frequency measurement and inter-RAT measurement are measurements on neighbor cells. The base station can configure priority for each carrier / frequency of inter-frequency measurement and / or inter-RAT measurement. Inter-frequency (inter-RAT) carriers / frequencies with the same priority as the serving cell, or lower priority than the serving cell, can perform relaxed measurement. Inter-frequency (inter-RAT) carriers / frequencies with higher priority than the serving cell can perform relaxed measurement if low mobility criterion and non-cell edge criterion are met, but measurement of inter-frequency (inter-RAT) carriers / frequencies with higher priority is more frequent than that of inter-frequency (inter-RAT) carriers / frequencies with the same priority and lower priority.

[0104] The present disclosure discusses when to enable LP-WUR after the introduction of LP-WUR, how to perform inter-frequency measurement when LP-WUR is enabled, and how to relax neighbor cell measurement. By the present disclosure, LP-WUR can be enabled in time and correctly, neighbor cell measurement can be reduced, and MR can be woken up less frequently, thereby reducing power consumption of the UE.

[0105] In the following description, "enable LP-WUR" means to start using LP-WUR, and / or to start listening to LP-WUS, and / or to start listening to LP-SS. "Disable LP-WUR" means to stop using LP-WUR, and / or to stop listening to LP-WUS, and / or to stop listening to LP-SS. In the following description, "use LP-WUR" and "based on LP-SS" can be used interchangeably. Neighbor cell measurement includes but is not limited to: intra-frequency cell measurement, inter-frequency cell measurement, inter-RAT cell measurement.

[0106] In the following several embodiments, the same noun can represent the same meaning, and the same parameter name represents the same meaning.

[0107] In the following, several embodiments of the present disclosure to solve the above problems are described in detail.

[0108] First, the implementation of the present disclosure is described.

[0109] As mentioned above, in order to be able to quickly configure CA / DC for the UE in RRC connected state, the UE performs specific idle measurement, i.e. Idle / inactive measurement, in RRC idle state and RRC inactive state according to the indication of the base station. The inventors of the present disclosure found that since Idle / inactive measurement is measurement on neighbor cells, and LP-WUR includes OOK-based LP-WUR which cannot perform measurement on neighbor cells, if OOK-based LP-WUR is enabled when performing Idle / inactive measurement, it will cause Idle / inactive measurement to be unable to be performed smoothly.

[0110] In order to avoid using the LP-WUR at an inappropriate time, avoid failing to perform the Idle / inactive measurement smoothly, etc., the inventors of the present disclosure found that if the LP-WUR is not enabled while the Idle / inactive measurement is being performed, or in other words, if it is confirmed whether the Idle / inactive measurement is being performed before the LP-WUR is enabled and the LP-WUR is enabled without the Idle / inactive measurement being performed, the above problems can be avoided. Furthermore, as to how to confirm whether the Idle / inactive measurement is being performed, the inventors found that this can be achieved by whether a first timer that times the execution time of the Idle / inactive measurement is running.

[0111] Further, since the OFDM-based LP-WUR can achieve measurement on a neighbor cell, it is also possible to allow the OFDM-based LP-WUR to be enabled without allowing the OOK-based LP-WUR to be enabled in the case where it is confirmed that the Idle / inactive measurement is being performed.

[0112] In addition to the Idle / inactive measurement, the same idea as described above can also be applicable to other types of measurements on a neighbor cell. That is, when such a measurement is being performed, the OOK-based LP-WUR is not allowed to be enabled, and only the OFDM-based LP-WUR is allowed to be enabled. Or, in the case where the OOK-based LP-WUR is enabled, it is first confirmed whether a measurement on a neighbor cell is being performed or whether such a measurement is to be performed. Or, it is also possible to confirm whether a measurement on a neighbor cell is being performed or whether such a measurement is to be performed before the LP-WUR is enabled, and decide which type of LP-WUR to enable according to the determination result.

[0113] Based on the above findings, the inventors of the present application implemented the present disclosure, and one aspect of the method of the present disclosure includes determining whether a first timer is in a running state, the first timer being started when the user equipment is configured with an idle measurement configuration for quickly configuring the user equipment with an idle measurement of AC / DC; and when the first timer is not in the running state, enabling a low-power receiver (LP-WUR) to measure a serving cell and / or a neighbor cell.

[0114] It is self-evident that the present disclosure also includes other implementation methods not mentioned herein, which can achieve other effects not mentioned herein.

[0115] In addition, in the present disclosure, sometimes "measurement" can be interchangeable with "search", and sometimes "carrier" can be replaced by "frequency", "inter-frequency", etc.

[0116] The following describes several embodiments of the present disclosure, which are only examples and can be combined arbitrarily.

[0117] Embodiments

[0118] Figure 1 is a schematic diagram of steps performed by a UE according to one or more embodiments. The UE can perform one or more steps in Figure 1. Figure 1 includes steps S101-S103.

[0119] Optionally, at step S101, the UE receives a system message and / or an RRC dedicated message (e.g. RRCRelease message) sent by the network. Optionally, the system message and / or the RRC dedicated message contains an idle measurement configuration (e.g. measIdleConfig) for configuring idle / inactive measurement. The idle measurement configuration is used to indicate the measurement configuration that needs to be saved and used by the UE in RRC idle state and / or RRC inactive state.

[0120] Optionally, the idle measurement configuration contains at least one of the following information:

[0121] - a list of idle measurement carriers (e.g. measIdleCarrierListNR) for indicating the carrier(s) information that needs to be measured in RRC idle state and / or RRC inactive state;

[0122] - an idle measurement duration (e.g. measIdleDuration) for indicating the duration of performing idle / inactive measurement in RRC idle state and / or RRC inactive state.

[0123] Optionally, the UE determines to start a first timer (e.g. T331) if the received RRC dedicated message contains the idle measurement configuration, and / or the idle measurement configuration is setup, and / or the RRC dedicated message contains the idle measurement configuration, and the value of the first timer is set to the idle measurement duration.

[0124] Optionally, the system message and / or the RRC dedicated message can also contain LP-WUR related configuration. Optionally, the LP-WUR related configuration contains at least one of the following information:

[0125] - LP-SS configuration;

[0126] - LP-WUR configuration;

[0127] - OOK based LP-WUR configuration;

[0128] - OFDM based LP-WUR configuration.

[0129] Optionally, if to avoid idle / inactive measurement and LP-WUR usage affecting each other, idle / inactive measurement and LP-WUR related configuration cannot be configured simultaneously. Optionally, when LP-WUR related configuration is configured (or exists), idle measurement configuration does not exist; otherwise, i.e. LP-WUR related configuration is not configured (or does not exist), idle measurement configuration optionally exists. Or, optionally, when idle measurement configuration is configured (or exists), LP-WUR related configuration does not exist; otherwise, when idle measurement configuration is not configured (or does not exist), LP-WUR related configuration optionally exists.

[0130] If idle / inactive measurement and LP-WUR related configuration can be configured simultaneously, UE needs to perform judgment and corresponding operation, as shown in steps S102 and / or S103.

[0131] Optionally, in step S102, UE judges whether to save idle / inactive measurement configuration (or idle measurement configuration) and judges whether to perform idle / inactive measurement.

[0132] Optionally, UE judges at least one of the following conditions:

[0133] - UE is in RRC idle state or RRC inactive state;

[0134] - UE is configured with idle measurement configuration;

[0135] - UE is configured with NR inter-frequency carrier for which idle / inactive measurement is required;

[0136] - first timer is running;

[0137] - UE is using MR for (RRM) measurement;

[0138] - MR is used for (RRM) measurement;

[0139] - UE is not using (OOK-based) LP-WUR for (RRM) measurement;

[0140] - UE is not listening to LP-SS.

[0141] In the case of meeting at least one of the above conditions, UE saves idle / inactive measurement configuration (e.g. idle measurement carrier list), and / or UE performs idle / inactive measurement.

[0142] Optionally, in step S103, the UE determines whether to use the LP-WUR for measurement.

[0143] Optionally, the UE judges at least one of the following conditions:

[0144] - the quality of the serving cell is above a threshold (e.g. the RSRP of the serving cell is above a threshold, and / or the RSRQ of the serving cell is above another threshold);

[0145] - the UE is in RRC idle state or RRC inactive state;

[0146] - the UE is configured with idle measurement configuration;

[0147] - the UE is configured with NR inter-frequency carrier requiring idle / inactive measurement;

[0148] - the first timer is not running.

[0149] In case at least one of the above conditions is met, the UE performs at least one of the following operations:

[0150] - enabling the LP-WUR, or enabling the OOK-based LP-WUR;

[0151] - switching from the MR to the LP-WUR, or switching from the MR to the OOK-based LP-WUR;

[0152] - performing measurement using the LP-WUR, or performing measurement using the OOK-based LP-WUR;

[0153] - performing serving cell measurement using the LP-WUR, or performing serving cell measurement using the OOK-based LP-WUR;

[0154] - (starting) monitoring the LP-SS, or (starting) measuring the LP-SS.

[0155] Alternatively, another implementation of step S103 is:

[0156] Optionally, the UE judges at least one of the following conditions:

[0157] - the UE is in RRC idle state or RRC inactive state;

[0158] - the UE is configured with idle measurement configuration;

[0159] - the UE is configured with NR inter-frequency carrier requiring idle / inactive measurement;

[0160] - the first timer is running.

[0161] In case at least one of the above conditions is met, the UE performs at least one of the following:

[0162] - not performing measurements using LP-WUR;

[0163] - not performing serving cell measurements using LP-WUR;

[0164] - not performing measurements using OOK-based LP-WUR;

[0165] - not performing serving cell measurements using OOK-based LP-WUR;

[0166] - not monitoring (or not measuring) LP-SS;

[0167] - performing measurements using MR;

[0168] - performing idle / inactive measurements using MR.

[0169] FIG. 2 is a diagram illustrating steps performed by a UE according to one or more embodiments. The UE can perform one or more steps in FIG. 2. FIG. 2 includes steps S201-S202.

[0170] Optionally, in step S201, the UE receives a first system message (e.g., SIB2) and / or a RRC dedicated message (e.g., RRCRelease message) sent by the network, which can contain at least one of the following:

[0171] - LP-WUR measurement of neighbor cell indication;

[0172] - OFDM-based LP-WUR measurement of neighbor cell indication.

[0173] Optionally, the “LP-WUR measurement of neighbor cell indication” is used to indicate whether LP-WUR is allowed to perform neighbor cell (or neighbor carrier, or neighbor frequency) measurement. The “LP-WUR measurement of neighbor cell indication” is set to TRUE to indicate that LP-WUR is allowed to perform neighbor cell (or neighbor carrier, or neighbor frequency) measurement, or the system message and / or RRC dedicated message contains the “LP-WUR measurement of neighbor cell indication” to indicate that LP-WUR is allowed to perform neighbor cell (or neighbor carrier, or neighbor frequency) measurement.

[0174] Optionally, the "OFDM-based LP-WUR measurement neighbor cell indication" is used to indicate whether the OFDM-based LP-WUR is allowed to perform neighbor cell (or neighbor carrier, or neighbor frequency) measurement. The "OFDM-based LP-WUR measurement neighbor cell indication" set to TRUE indicates that the OFDM-based LP-WUR is allowed to perform neighbor cell (or neighbor carrier, or neighbor frequency) measurement, or the inclusion of the "OFDM-based LP-WUR measurement neighbor cell indication" in the system message and / or RRC dedicated message indicates that the OFDM-based LP-WUR is allowed to perform neighbor cell (or neighbor carrier, or neighbor frequency) measurement.

[0175] Optionally, in step S202, the UE determines whether to use the LP-WUR or the OFDM-based LP-WUR for neighbor cell (or neighbor carrier, or neighbor frequency) measurement.

[0176] Optionally, the UE determines at least one of the following conditions:

[0177] - the UE is in RRC idle state or RRC inactive state;

[0178] - the UE supports (or is equipped with) the LP-WUR;

[0179] - the UE supports (or is equipped with) the OFDM-based LP-WUR;

[0180] - the UE is configured with the OFDM-based LP-WUR configuration;

[0181] - the UE is configured with neighbor cell (or neighbor carrier, or neighbor frequency) measurement;

[0182] - the UE is configured with the LP-WUR measurement neighbor cell indication (or the OFDM-based LP-WUR measurement neighbor cell indication);

[0183] - the LP-WUR measurement neighbor cell indication indicates that the LP-WUR is allowed to perform neighbor cell (or neighbor carrier, or neighbor frequency) measurement;

[0184] - the OFDM-based LP-WUR measurement neighbor cell indication indicates that the OFDM-based LP-WUR is allowed to perform neighbor cell (or neighbor carrier, or neighbor frequency) measurement;

[0185] - the quality of the serving cell is above a threshold (e.g., the RSRP of the serving cell is above a threshold, and / or the RSRQ of the serving cell is above another threshold).

[0186] In case at least one of the above conditions is met, the UE performs at least one of the following operations:

[0187] - performs neighbor cell (or neighbor carrier, or neighbor frequency) measurement using the LP-WUR;

[0188] - performing neighbor cell (or neighbor carrier, or neighbor frequency) measurements using the OFDM-based LP-WUR.

[0189] Figure 3 is a schematic diagram of steps performed by a UE according to one or more embodiments. The UE can perform one or more of the steps in Figure 3. Figure 3 includes steps S301-S302.

[0190] Optionally, the only difference between step S301 and step S101 is described as follows, and the other descriptions and UE behavior steps S301 are exactly the same as step S101:

[0191] Optionally, the idle measurement configuration further contains at least one of the following information:

[0192] - LP-WUR idle measurement indication;

[0193] - OFDM-based LP-WUR idle measurement indication.

[0194] Optionally, the "LP-WUR idle measurement indication" is used to indicate whether the LP-WUR is allowed to perform idle / inactive measurement. The "LP-WUR idle measurement indication" is set to TRUE indicates that the LP-WUR is allowed to perform idle / inactive measurement, or the idle measurement configuration contains the "LP-WUR idle measurement indication" indicates that the LP-WUR is allowed to perform idle / inactive measurement.

[0195] Optionally, the "OFDM-based LP-WUR idle measurement indication" is used to indicate whether the OFDM-based LP-WUR is allowed to perform idle / inactive measurement. The "OFDM-based LP-WUR idle measurement indication" is set to TRUE indicates that the OFDM-based LP-WUR is allowed to perform idle / inactive measurement, or the idle measurement configuration contains the "OFDM-based LP-WUR idle measurement indication" indicates that the OFDM-based LP-WUR is allowed to perform idle / inactive measurement.

[0196] Optionally, "allowing the LP-WUR to perform idle / inactive measurement" can also be replaced by at least one of the following descriptions:

[0197] - allowing the LP-WUR to perform idle / inactive measurement when the UE uses the LP-WUR;

[0198] - allowing the LP-WUR to perform idle / inactive measurement when the UE uses the LP-WUR for measurement.

[0199] Optionally, "allowing the OFDM-based LP-WUR to perform idle / inactive measurement" can also be replaced by at least one of the following descriptions:

[0200] - whether to allow the OFDM-based LP-WUR to perform idle / inactive measurement when the UE uses the OFDM-based LP-WUR;

[0201] - whether to allow the OFDM-based LP-WUR to perform idle / inactive measurement when the UE uses the OFDM-based LP-WUR for measurement.

[0202] Optionally, in step S302, the UE determines whether to use the OFDM-based LP-WUR for idle / inactive measurement.

[0203] Optionally, the UE judges at least one of the following conditions:

[0204] - the UE is in RRC idle state or RRC inactive state;

[0205] - the UE supports (or is equipped with) LP-WUR;

[0206] - the UE supports (or is equipped with) OFDM-based LP-WUR;

[0207] - the UE is configured with OFDM-based LP-WUR configuration;

[0208] - the UE is configured with idle measurement configuration;

[0209] - the UE is configured with NR inter-frequency carrier that needs to perform idle / inactive measurement;

[0210] - the UE is configured with LP-WUR idle measurement indication (or OFDM-based LP-WUR idle measurement indication);

[0211] - the LP-WUR idle measurement indication indicates that the UE is allowed to perform idle / inactive measurement by LP-WUR;

[0212] - the OFDM-based LP-WUR idle measurement indication indicates that the UE is allowed to perform idle / inactive measurement by OFDM-based LP-WUR;

[0213] - the quality of the serving cell is higher than a threshold (e.g., the RSRP of the serving cell is higher than a threshold, and / or the RSRQ of the serving cell is higher than another threshold);

[0214] - a first timer is running.

[0215] In case at least one of the above conditions is met, the UE performs at least one of the following operations:

[0216] - performing idle / inactive measurements using LP-WUR;

[0217] - performing idle / inactive measurements using OFDM-based LP-WUR.

[0218] FIG. 4 is a schematic diagram of steps performed by a UE according to one or more embodiments. The UE can perform one or more steps in FIG. 4. FIG. 4 includes steps S401-S403.

[0219] Optionally, in step S401, the UE receives a first system message (e.g., SIB2) and / or an RRC dedicated message (e.g., RRCRelease message) transmitted by the network, which contains cell reselection priority information of the serving cell. Optionally, the UE receives a second system message (e.g., SIB4) and / or an RRC dedicated message (e.g., RRCRelease message) transmitted by the network, which contains inter-frequency cell reselection information.

[0220] Optionally, the inter-frequency cell reselection information is represented by an inter-frequency carrier frequency list, which includes frequencies of neighbor carriers and cell reselection priorities of each neighbor carrier. Optionally, for an inter-frequency (inter-system) carrier / frequency whose cell reselection priority is higher than that of the serving cell, it is referred to as a high-priority (inter-frequency) carrier / frequency. For an inter-frequency (inter-system) carrier / frequency whose cell reselection priority is lower than that of the serving cell, it is referred to as a low-priority (inter-frequency) carrier / frequency. For an inter-frequency (inter-system) carrier / frequency whose cell reselection priority is equal to that of the serving cell, it is referred to as a same-priority (inter-frequency) carrier / frequency.

[0221] Optionally, the first system message, and / or the second system message, and / or the RRC dedicated message further contains at least one of the following configurations:

[0222] - LP-WUR (or LP-SS) high-priority measurement relaxation indication;

[0223] - LP-WUR (or LP-SS) low-mobility evaluation criterion;

[0224] - LP-WUR (or LP-SS) non-cell-edge evaluation criterion (may also be referred to as LP-WUR (or LP-SS) cell-edge evaluation criterion);

[0225] - LP-WUR RSRP (or LP-RSRP) threshold;

[0226] - LP-WUR RSRQ (or LP-RSRQ) threshold.

[0227] Optionally, a LP-WUR (or LP-SS) high priority measurement relaxation indication is used to indicate whether measurement on a LP-WUR (or LP-SS) high priority (inter- frequency) carrier / frequency can be relaxed or not.

[0228] Optionally, a LP-WUR (or LP-SS) low mobility evaluation criterion is used to indicate the criterion for the UE to detect low mobility based on LP-WUR (or LP-SS). Optionally, a LP-WUR (or LP-SS) non-cell edge evaluation criterion (may also be referred to as a LP-WUR (or LP-SS) cell edge evaluation criterion) is used to indicate the criterion for the UE to detect not being on the cell edge based on LP-WUR (or LP-SS).

[0229] Optionally, in step S402, the UE determines whether to use LP-WUR for measurement, and determines to perform (serving cell) measurement using LP-WUR (or LP-SS), or determines to listen to LP-SS, or determines to perform (serving cell) measurement using OOK-based LP-WUR.

[0230] Optionally, in step S403, the UE determines inter-frequency NR cell measurement requirement.

[0231] Optionally, the UE determines at least one of the following first conditions:

[0232] - the UE performs (serving cell) measurement using LP-WUR (or LP-SS);

[0233] - the UE listens to LP-SS;

[0234] - the UE performs (serving cell) measurement using OOK-based LP-WUR.

[0235] Optionally, in the case that at least one of the above first conditions is met, the UE performs at least one of the following first relaxed measurement requirements:

[0236] - the UE searches (and / or measures) high priority (inter- frequency) carrier (or frequency, or layer) at least every K*T time. The high priority (inter- frequency) carrier (or frequency, or layer) can be one or more. Optionally, K is 120, or 240, or 360, or 480; optionally, T = (60*N) seconds, optionally, N is the total number of high priority (inter- frequency) carriers;

[0237] - UE searches (and / or measures) high priority (inter-frequency) carriers (or frequencies, or layers) at least every M*DRX cycles. Wherein, DRX cycle is configured by base station, is DRX cycle or eDRX (extended DRX) cycle in RRC idle state and RRC active state. Wherein, M represents the number of DRX cycles, i.e. how many DRX cycles, M can be integer or decimal;

[0238] - The minimum rate of searching (and / or measuring) high priority (inter-frequency) carriers (or frequencies, or layers) is the same as the minimum rate of searching (and / or measuring) same priority (inter-frequency) carriers (or frequencies, or layers) and low priority (inter-frequency) carriers (or frequencies, or layers);

[0239] - The minimum rate of searching (and / or measuring) high priority (inter-frequency) carriers (or frequencies, or layers) is a multiple (or integer multiple) of the minimum rate of searching (and / or measuring) same priority (inter-frequency) carriers (or frequencies, or layers) and low priority (inter-frequency) carriers (or frequencies, or layers);

[0240] - The minimum rate of searching (and / or measuring) same priority (inter-frequency) carriers (or frequencies, or layers) and low priority (inter-frequency) carriers (or frequencies, or layers) is a multiple (or integer multiple) of the minimum rate of searching (and / or measuring) high priority (inter-frequency) carriers (or frequencies, or layers).

[0241] Optionally, wherein the minimum rate refers to how long the UE has to perform searching or measuring a certain carrier (or frequency, or layer) or certain carriers (or frequencies, or layers).

[0242] Or, optionally, the UE judges at least one of the following conditions:

[0243] - configured with LP-WUR (or LP-SS) low mobility evaluation criterion;

[0244] - meets the LP-WUR (or LP-SS) low mobility criterion;

[0245] - configured with LP-WUR (or LP-SS) cell edge evaluation criterion;

[0246] - meets the LP-WUR (or LP-SS) cell edge evaluation criterion

[0247] - Srxlev > LP-WUR RSRP threshold (or LP-RSRP threshold), and Squal > LP-WUR RSRQ threshold (or LP-RSRQ threshold). Wherein, Srxlev is the current reception level value (such as the current RSRP) of the serving cell, and Squal is the current quality value of the serving cell.

[0248] Optionally, in the case of satisfying at least one of the above conditions (or in the case of satisfying at least one of the first conditions and satisfying at least one of the above conditions), the UE performs at least one of the first relaxed measurement requirements. Alternatively, in the case of satisfying at least one of the above conditions (or in the case of satisfying at least one of the first conditions and satisfying at least one of the above conditions): if the UE is configured with the LP-WUR (or LP-SS) high priority measurement relaxation indication, the UE performs at least one of the first relaxed measurement requirements; otherwise, i.e. without being configured with the LP-WUR (or LP-SS) high priority measurement relaxation indication, the UE searches (and / or measures) at least every T time for the high priority (inter-frequency) carriers (or frequencies, or layers), which can be one or more, T = (60*N) seconds, N being the total number of high priority (inter-frequency) carrier frequencies.

[0249] The UE performing the first relaxed measurement requirements can also be described as the UE needing to satisfy the first measurement requirements.

[0250] Unless otherwise specified, the order of judgment and operation and execution in each step in the embodiments is irrelevant, i.e. the order of judgment and operation execution can be changed.

[0251] FIG. 5 is a brief structural block diagram of a user equipment UE according to the present disclosure. As shown in FIG. 5, the user equipment UE 500 includes a processor 501 and a memory 502. The processor 501 can include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The memory 502 can include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory, etc. The memory 502 stores program instructions. When the instructions are run by the processor 501, the above-mentioned method performed by the user equipment according to the present disclosure can be executed.

[0252] The program running on the device according to the present disclosure can be a program that controls a central processing unit (CPU) to enable the computer to implement the functions of the embodiments of the present disclosure. The program or information processed by the program can be temporarily stored in a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory systems.

[0253] Programs for implementing functions of the embodiments of the present disclosure can be recorded on a computer-readable recording medium. The corresponding functions can be implemented by causing a computer system to read the programs recorded on the recording medium and execute the programs. The computer system here can be a computer system embedded in the device, and can include an operating system or hardware such as a peripheral device. The computer-readable recording medium can be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a short-time dynamic storage program recording medium, or any other computer-readable recording medium.

[0254] The various features or function modules of the device used in the above-described embodiments can be implemented or executed by a circuit (e.g., a single chip or a multi chip integrated circuit). The circuit designed to perform the functions described in the specification can include a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, or any combination thereof. The general-purpose processor can be a microprocessor, but implementation is not limited thereto. The general-purpose processor can also be any existing processor, controller, microcontroller, or state machine. The circuit can be a digital circuit or an analog circuit. If new integrated circuit technology replacing existing integrated circuit technology emerges as a result of the advancement of semiconductor technology, one or more embodiments of the present disclosure can also be implemented using such new integrated circuit technology.

[0255] Furthermore, the present disclosure is not limited to the above-described embodiments. Although various examples of the embodiments have been described, the present disclosure is not limited thereto. Fixed or non-mobile electronic devices installed indoors or outdoors can be used as terminal devices or communication devices, such as AV devices, kitchen devices, cleaning devices, air conditioners, office devices, vending machines, and other home appliances.

[0256] As described above, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. However, the specific configuration is not limited to the above-described embodiments, and the present disclosure includes any design modification without departing from the spirit of the present disclosure. In addition, various modifications can be made to the present disclosure within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in the different embodiments are also included in the technical scope of the present disclosure. Furthermore, components described in the above-described embodiments having the same effect can be substituted for each other.

Claims

1. A method performed by a user equipment in an RRC idle state or an RRC inactive state, comprising: determining whether a first timer is in a running state, the first timer being started when the user equipment is configured with an idle measurement configuration for fast configuring AC / DC for the user equipment; and when the first timer is not in the running state, enabling a low power receiver, LP-WUR, to perform measurements on a serving cell and / or a neighbor cell. 2.The method of claim 1, further comprising: performing the idle measurement when at least one of the following conditions is met: the first timer is in the running state; the user equipment is using a main receiver, MR, to perform measurements; the user equipment is not using the LP-WUR to perform measurements; the user equipment is not listening to low power synchronization information, LP-SS. 3.The method of claim 1, further comprising: when the first timer is in the running state, performing at least one of the following: not using the LP-WUR to perform measurements; not using the LP-WUR to perform serving cell measurements; not listening to low power synchronization information, LP-SS; not measuring the LP-SS.

4. The method according to any one of claims 1 to 3, wherein, the LP-WUR is an on-off keying, OOK, based LP-WUR. 5.The method of claim 4, further comprising: when at least one of the following conditions is met, performing the idle measurement using an OFDM based LP-WUR: the user equipment is configured with an OFDM based LP-WUR configuration; the user equipment is configured with the idle measurement configuration; the user equipment is configured with a NR inter-frequency carrier for which the idle measurement is required; the user equipment receives a LP-WUR idle measurement indication indicating that the idle measurement is allowed to be performed using the LP-WUR; the user equipment receives an OFDM based LP-WUR idle measurement indication indicating that the idle measurement is allowed to be performed using the OFDM based LP-WUR; a quality of a serving cell is above a threshold; the first timer is running. 6.The method of any of claims 1-3, further comprising: when at least one of the following conditions is met, performing a neighbor cell measurement using an OFDM based LP-WUR: the user equipment is configured with an OFDM based LP-WUR configuration; the user equipment, UE, is configured with a neighbor cell measurement; the user equipment is configured with a LP-WUR measurement neighbor cell indication; the user equipment is configured with an OFDM based LP-WUR measurement neighbor cell indication; the user equipment is configured with a LP-WUR measurement neighbor cell indication indicating that a neighbor cell measurement is allowed to be performed using the LP-WUR; the user equipment is configured with an OFDM based LP-WUR measurement neighbor cell indication indicating that a neighbor cell measurement is allowed to be performed using the OFDM based LP-WUR; a quality of a serving cell is above a threshold. 7.The method of any of claims 1-3, further comprising: receiving an LP-WUR high priority relaxed measurement indication indicating whether relaxed measurement on LP-WUR high priority carrier is allowed or not; and in case that the LP-WUR high priority relaxed measurement indication allows relaxed measurement on LP-WUR high priority carrier, performing at least one of the following first relaxed measurement requirements when a given condition is met, indicating that the user equipment is performing LP-WUR based measurement: the user equipment measures high priority carriers at least every K*T time, the number of high priority carriers is one or more, wherein K is 120, 240, 360 or 480, and T = 60*N seconds, N is the total number of high priority carrier frequencies; the user equipment measures high priority carriers at least every M*DRX cycle, wherein the DRX cycle is configured by the base station, is the DRX cycle in RRC idle state and RRC active state, and M represents the number of DRX cycles; the minimum speed of the user equipment for measuring high priority carriers is the same as the minimum speed for measuring carriers of the same priority and low priority carriers; the minimum speed of the user equipment for measuring high priority carriers is an integer multiple of the minimum speed for measuring carriers of the same priority and low priority carriers; the minimum speed of the user equipment for measuring carriers of the same priority and low priority carriers is an integer multiple of the minimum speed for measuring high priority carriers; the minimum speed is the minimum time interval for performing measurement on a carrier.

8. The method of claim 7, wherein, the given condition includes at least one of the following conditions: the user equipment is performing measurement using LP-WUR; the user equipment is performing measurement using LP-SS; the user equipment is listening to LP-SS; the user equipment is performing measurement using OOK based LP-WUR.

9. The method of claim 7, further comprising: in case that the user equipment is not configured the LP-WUR high priority relaxed measurement indication, the user equipment measures high priority carriers at least every T time.

10. A user equipment, comprising: a processor; and a memory storing instructions; wherein the instructions, when executed by the processor, perform the method of any one of claims 1 to 9.

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