Method and apparatus for saving power

Abstract

The invention provides a method and equipment for saving power, and discloses a method executed by user equipment (UE), the UE comprises a first receiver and a second receiver, the first receiver is a low-power-consumption receiver, and the method comprises the following steps: receiving a first reference signal through the first receiver; performing cell measurement based on the first reference signal; performing cell evaluation based on the measurement result and the parameter related to the low power consumption characteristic; and determining whether to trigger the second receiver to perform corresponding processing based on the cell evaluation result.

Description

Technical Field

[0001] The present invention generally relates to the field of wireless communication technology, and more particularly to a method and device for saving power based on low power consumption characteristics. Background Art

[0002] To meet the increased demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi-5G communication systems. Therefore, 5G or quasi-5G communication systems are also referred to as "beyond 4G networks" or "post-LTE systems."

[0003] 5G communication systems are implemented in higher-frequency (millimeter wave, mmWave) bands, such as the 60 GHz band, to achieve higher data rates. To reduce radio wave propagation losses and increase transmission distances, 5G communication systems utilize technologies such as beamforming, massive multiple-input multiple-output (MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive antennas.

[0004] In addition, in the 5G communication system, system network improvements are being developed based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communications, wireless backhaul, mobile networks, collaborative communications, coordinated multi-point (CoMP), and receiving-end interference cancellation.

[0005] In 5G systems, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC) have been developed as advanced coding modulation (ACM), as well as filter bank multi-carrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) as advanced access technologies. Summary of the Invention

[0006] The present application provides a method and device for saving power to support various functions based on low power consumption characteristics.

[0007] According to one aspect of the present disclosure, a method performed by a user equipment (UE) is provided, wherein the UE includes a first receiver and a second receiver, wherein the first receiver is a low-power receiver, and the method includes: receiving a first reference signal through the first receiver; performing cell measurement based on the first reference signal; performing cell evaluation based on the measurement result and parameters related to the low-power consumption characteristic; and determining whether to trigger the second receiver to perform corresponding processing based on the cell evaluation result.

[0008] According to an embodiment of the present disclosure, performing cell measurement based on the first reference signal includes: measuring a serving cell and / or a neighboring cell based on the first reference signal.

[0009] According to an embodiment of the present disclosure, performing cell measurement based on the first reference signal includes: obtaining configuration information related to cell measurement; determining signal reception power information and / or signal reception quality information corresponding to the first reference signal based on the first reference signal and the configuration information related to the cell measurement, wherein the configuration information related to the cell measurement includes: at least one of a measurement configuration timing period for the first reference signal, a sending period of the first reference signal, and a period of a low power wake-up signal LP-WUS.

[0010] According to an embodiment of the present disclosure, based on the first reference signal and configuration information related to cell measurement, determining the signal reception power information and / or signal reception quality information corresponding to the first reference signal includes: the UE uses at least two measurement values to filter the signal reception power information and / or signal reception quality information corresponding to the first reference signal of the cell; wherein, based on the LP-WUS period or the measurement timing period of the first reference signal in the configuration information related to the cell measurement, at least two measurement value intervals are determined.

[0011] According to an embodiment of the present disclosure, the measurement timing configuration period of the first reference signal is greater than the maximum value of the measurement timing configuration period of the second reference signal, wherein the second reference signal is received by the second receiver.

[0012] According to an embodiment of the present disclosure, a cell evaluation is performed based on measurement results and parameters related to low power consumption characteristics, including: obtaining configuration information related to cell evaluation, the configuration information including parameters related to low power consumption characteristics; performing cell evaluation based on the measurement results and the configuration information related to cell evaluation; wherein the configuration information related to cell evaluation includes: at least one of the period of low power wake-up signal LP-WUS, discontinuous reception DRX period, and low power consumption period length.

[0013] According to an embodiment of the present disclosure, a cell evaluation is performed based on the measurement results and the configuration information related to the cell evaluation, including: determining the low power consumption period length based on at least one of the LP-WUS period, the DRX period and the measurement timing configuration period of the first reference signal in the configuration information related to the cell evaluation; determining the evaluation period based on the evaluation-related parameters of the UE and the low power consumption period length; and performing cell evaluation based on the evaluation period.

[0014] According to an embodiment of the present disclosure, the parameters related to the evaluation of the UE include at least one of the following: parameters related to RF front-end link switching, a scaling factor related to frequency, a multiplication factor related to the evaluation, and a relaxation factor related to the degree of relaxation of the evaluation period.

[0015] According to an embodiment of the present disclosure, a cell evaluation is performed based on the measurement results and parameters related to the low power consumption characteristics, including: converting a first measurement value in the measurement result based on a first low power consumption offset parameter and a first low power consumption correction parameter in the parameters related to the low power consumption characteristics; using the converted first measurement value to obtain a first evaluation result; wherein the first measurement value is related to the signal receiving power information corresponding to the first reference signal.

[0016] According to an embodiment of the present disclosure, a cell evaluation is performed based on the measurement results and parameters related to the low power consumption characteristics, including: converting the second measurement value in the measurement result based on a second low power consumption offset parameter and a second low power consumption correction parameter in the parameters related to the low power consumption characteristics; using the converted second measurement value to obtain a second evaluation result; wherein the second measurement value is related to the signal reception quality information corresponding to the first reference signal.

[0017] According to an embodiment of the present disclosure, performing cell evaluation based on measurement results and parameters related to low power consumption characteristics includes: obtaining a third evaluation result based on a threshold value related to low power consumption characteristics in the measurement results and the parameters related to low power consumption characteristics.

[0018] According to an embodiment of the present disclosure, performing cell measurement based on the first reference signal includes: measuring the serving cell based on the first reference signal; determining whether a condition for triggering neighbor cell measurement is met based on the measurement result of the serving cell; and if so, triggering the second receiver to measure the neighbor cell. The neighbor cell measurement includes at least one of the measurement of an intra-frequency NR cell, an inter-frequency NR cell, and an inter-RAT cell indicated by the serving cell.

[0019] According to an embodiment of the present disclosure, performing cell measurement based on the first reference signal includes: measuring the serving cell based on the first reference signal; if the UE supports orthogonal frequency division multiplexing OFDM low power reception capability, measuring the neighboring cell based on the second reference signal.

[0020] According to an embodiment of the present disclosure, a cell evaluation is performed based on measurement results and parameters related to low power consumption characteristics, including: sorting the measurement results of qualified neighboring cells, and determining the optimal neighboring cell according to the sorting results; and determining whether the optimal neighboring cell is the reselected cell of the UE based on a comparison of the measurement results of the optimal neighboring cell and the measurement results of the serving cell.

[0021] According to an embodiment of the present disclosure, determining whether the optimal neighboring cell is the reselected cell of the UE includes: converting the measurement result of the serving cell based on a third low-power offset parameter and a third low-power correction parameter in the parameters related to low-power consumption characteristics; and determining whether the optimal neighboring cell is the reselected cell of the UE based on a comparison between the measurement result of the optimal neighboring cell and the measurement result of the converted serving cell.

[0022] According to an embodiment of the present disclosure, the first low-power offset parameter, the second low-power offset parameter and the third low-power offset parameter are obtained by at least one of the following: the difference in received signal values when the first receiver and the second receiver receive signals of the same power; whether the first receiver supports RF front-end link switching; the number of RF front-end links that the first receiver can switch; the power difference between the reference signal received by the first receiver and the reference signal received by the second receiver; and measurement jitter error.

[0023] According to an embodiment of the present disclosure, the first low power offset parameter, the second low power offset parameter and the third low power offset parameter are obtained by the difference between the measurement results of the first receiver and the second receiver respectively measuring their respective reference signals.

[0024] According to an embodiment of the present disclosure, configuration information related to cell measurement or configuration information related to cell evaluation is obtained through a system information block.

[0025] According to an embodiment of the present disclosure, the RF front-end link includes at least one of an antenna, a matching network, an antenna switch, a RF switch, a filter, an amplifier, a duplexer, a multiplexer, and a mixer.

[0026] According to an embodiment of the present disclosure, the first reference signal includes at least one of a low-power synchronization signal, a low-power wake-up signal, and a synchronization signal block.

[0027] According to an embodiment of the present disclosure, the second reference signal includes a synchronization signal block SSB.

[0028] According to an embodiment of the present disclosure, determining whether to trigger the second receiver to perform corresponding processing includes: determining whether to trigger the second receiver to perform at least one of neighbor cell measurement, neighbor cell evaluation, cell reselection, and cell selection.

[0029] According to another aspect of the present disclosure, a method performed by a network node is provided, the method comprising: sending a first reference signal to a UE, the UE comprising a first receiver and a second receiver, wherein the first receiver is a low-power receiver, and the first reference signal is received by the first receiver; wherein cell measurement is performed based on the first reference signal; wherein cell evaluation is performed based on the measurement result and parameters related to the low-power consumption characteristic; wherein whether to trigger the second receiver to perform corresponding processing is determined based on the cell evaluation result.

[0030] According to an embodiment of the present disclosure, the cell measurement performed based on the first reference signal includes: measuring the serving cell and / or the neighboring cell based on the first reference signal.

[0031] According to an embodiment of the present disclosure, it also includes: sending configuration information related to cell measurement, wherein the cell measurement performed based on the first reference signal includes: the signal reception power information and / or signal reception quality information corresponding to the first reference signal is determined based on the first reference signal and the configuration information related to the cell measurement; wherein the configuration information related to the cell measurement includes: at least one of the measurement timing configuration period for the first reference signal, the sending period of the first reference signal, and the period of the low power consumption wake-up signal LP-WUS.

[0032] According to an embodiment of the present disclosure, the determination of the signal reception power information and / or signal reception quality information corresponding to the first reference signal based on the first reference signal and the configuration information related to the cell measurement includes: at least two measurement values ​​are used to filter the signal reception power information and / or signal reception quality information corresponding to the first reference signal of the cell; wherein, at least two measurement value intervals are determined based on the LP-WUS period in the configuration information related to the cell measurement or the measurement timing configuration period of the first reference signal.

[0033] According to an embodiment of the present disclosure, the measurement timing configuration period of the first reference signal is greater than a maximum value of the measurement timing configuration period of the second reference signal, wherein the second reference signal is received by the second receiver.

[0034] According to an embodiment of the present disclosure, it also includes: sending configuration information related to cell evaluation, the configuration information including parameters related to low power consumption characteristics, wherein the cell evaluation based on the measurement results and the parameters related to the low power consumption characteristics includes: the cell evaluation is performed based on the measurement results and the configuration information related to the cell evaluation, wherein the configuration information related to the cell evaluation includes: at least one of the period of the low power wake-up signal LP-WUS, the discontinuous reception DRX period, and the low power consumption period length.

[0035] According to an embodiment of the present disclosure, the cell evaluation performed based on the measurement results and the configuration information related to the cell evaluation includes: the low power consumption period length is determined based on at least one of the LP-WUS period, the DRX period and the measurement timing configuration period of the first reference signal in the configuration information related to the cell evaluation, the evaluation period is determined based on the UE parameters related to the evaluation and the low power consumption period length, and the cell evaluation is performed based on the evaluation period.

[0036] According to an embodiment of the present disclosure, the UE parameters related to evaluation include at least one of the following: parameters related to RF front-end link switching, scaling factors related to frequency, and multiplication factors related to evaluation.

[0037] According to an embodiment of the present disclosure, the cell evaluation based on the measurement results and parameters related to the low power consumption characteristics includes: based on the first low power consumption offset parameter and the first low power consumption correction parameter in the parameters related to the low power consumption characteristics, the first measurement value in the measurement result is converted, and the converted first measurement value is used to obtain a first evaluation result, wherein the first measurement value is related to the signal receiving power information corresponding to the first reference signal.

[0038] According to an embodiment of the present disclosure, the cell evaluation based on the measurement results and parameters related to the low power consumption characteristics includes: based on the second low power consumption offset parameter and the second low power consumption correction parameter in the parameters related to the low power consumption characteristics, the second measurement value in the measurement result is converted, and the converted second measurement value is used to obtain a second evaluation result, wherein the second measurement value is related to the signal reception quality information corresponding to the first reference signal.

[0039] According to an embodiment of the present disclosure, the cell evaluation based on the measurement results and the parameters related to the low power consumption characteristics includes: the third evaluation result is obtained based on the threshold value related to the low power consumption characteristics in the measurement results and the parameters related to the low power consumption characteristics.

[0040] According to an embodiment of the present disclosure, the cell measurement based on the first reference signal includes: the measurement of the serving cell is performed based on the first reference signal, and based on the measurement result of the serving cell, whether the condition for triggering the neighboring cell measurement is met is determined; if so, the measurement of the neighboring cell by the second receiver is triggered, wherein the neighboring cell measurement includes at least one of the measurement of the same-frequency NR cell, the different-frequency NR cell and the inter-radio access technology cell indicated by the serving cell.

[0041] According to an embodiment of the present disclosure, the cell measurement based on the first reference signal includes: the measurement of the serving cell is based on the first reference signal; if the UE supports orthogonal frequency division multiplexing OFDM low power reception capability, the measurement of the neighboring cell is based on the second reference signal.

[0042] According to an embodiment of the present disclosure, the cell evaluation based on the measurement results and the parameters related to the low power consumption characteristics includes: sorting the measurement results of the qualified neighboring cells, and determining the optimal neighboring cell according to the sorting results; based on the comparison of the measurement results of the optimal neighboring cell and the measurement results of the serving cell, determining whether the optimal neighboring cell is the reselected cell of the UE.

[0043] According to an embodiment of the present disclosure, the determination of whether the optimal neighboring cell is the reselected cell of the UE includes: based on a third low-power offset parameter and a third low-power correction parameter in the parameters related to low-power consumption characteristics, the measurement result of the serving cell is converted; based on a comparison of the measurement result of the optimal neighboring cell and the measurement result of the converted serving cell, whether the optimal neighboring cell is the reselected cell of the UE is determined.

[0044] According to an embodiment of the present disclosure, the first low-power offset parameter, the second low-power offset parameter and the third low-power offset parameter are obtained by at least one of the following: the difference in received signal values when the first receiver and the second receiver receive signals of the same power; whether the first receiver supports RF front-end link switching; the number of RF front-end links that the first receiver can switch; the power difference between the reference signal received by the first receiver and the reference signal received by the second receiver; and measurement jitter error.

[0045] According to an embodiment of the present disclosure, the first low power offset parameter, the second low power offset parameter and the third low power offset parameter are obtained by the difference between the measurement results of the first receiver and the second receiver respectively measuring their respective reference signals.

[0046] According to an embodiment of the present disclosure, the method further includes: sending configuration information related to cell measurement or configuration information related to cell evaluation through a system information block.

[0047] According to an embodiment of the present disclosure, the RF front-end link includes at least one of an antenna, a matching network, an antenna switch, a RF switch, a filter, an amplifier, a duplexer, a multiplexer, and a mixer.

[0048] According to an embodiment of the present disclosure, the first reference signal includes at least one of a low-power synchronization signal, a low-power wake-up signal, and a synchronization signal block.

[0049] According to an embodiment of the present disclosure, the second reference signal includes a synchronization signal block SSB.

[0050] According to an embodiment of the present disclosure, the determination of whether to trigger the second receiver to perform corresponding processing includes: whether to trigger the second receiver to perform at least one of neighboring cell measurement, neighboring cell evaluation, cell reselection, and cell selection is determined. According to another aspect of the present disclosure, a method performed by a network node is provided, including: obtaining first information about power boosting of a reference signal; sending second information about power boosting of a reference signal to a user equipment UE, wherein the second information about power boosting of a reference signal includes at least one of the following: whether to boost the power of a reference signal received by a first receiver of the UE, the first receiver being a low-power receiver; whether to boost the power of a reference signal received by a second receiver of the UE; the power boost value of the reference signal received by the first receiver; the power boost value of the reference signal received by the second receiver; the difference between the power boost value of the reference signal received by the second receiver and the power boost of the reference signal received by the first receiver.

[0051] According to an embodiment of the present disclosure, obtaining first information about power boosting of a reference signal includes: receiving information about the capability and / or type of the UE from the UE; and determining second information about power boosting of the reference signal based on the information about the capability and / or type of the UE.

[0052] According to an embodiment of the present disclosure, sending the second information about the power boost of the reference signal to the UE includes: sending the second information about the power boost of the signal to the UE through at least one of a system information block, a signaling sent to the UE, and a reference signal received by a first receiver.

[0053] According to an embodiment of the present disclosure, the information about the capability and / or type of the UE indicates the detection method or radio frequency index of the UE.

[0054] According to an embodiment of the present disclosure, in a case where the information about the capability and / or type of the UE indicates that the UE supports OFDM detection, the power of the reference signal received by the first receiver is not boosted; or

[0055] In a case where the information about the capability and / or type of the UE indicates that the UE supports OFDM detection, boosting the power of a reference signal received by the first receiver, and the boosted power is less than the boosted power in a case where the UE does not support OFDM detection; or

[0056] If the information about the capability and / or type of the UE indicates that the UE does not support OFDM detection or the information about the capability and / or type of the UE is not received, the power of the reference signal received by the first receiver is increased.

[0057] According to an embodiment of the present disclosure, the reference signal received by the first receiver includes at least one of a low-power synchronization signal, a low-power wake-up signal, and a synchronization signal block; the reference signal received by the second receiver includes a synchronization signal block.

[0058] According to another aspect of the present disclosure, a method performed by a user equipment UE is provided, including: sending first information about power boosting of a reference signal to a network node; receiving second information about power boosting of the reference signal from the network node, wherein the second information about power boosting of the reference signal includes at least one of the following: whether to boost the power of a reference signal received by a first receiver of the UE, the first receiver being a low power consumption receiver; whether to boost the power of a reference signal received by a second receiver of the UE; a power boost value of the reference signal received by the first receiver; a power boost value of the reference signal received by the second receiver; and a difference between the power boost value of the reference signal received by the second receiver and the power boost of the reference signal received by the first receiver.

[0059] According to an embodiment of the present disclosure, sending first information about power boosting of a reference signal to a network node includes:

[0060] Sending information about the capabilities and / or type of the UE to a network node;

[0061] Therein, based on information about the capability and / or type of the UE, second information about power boosting of the reference signal is determined.

[0062] According to an embodiment of the present disclosure, receiving the second information about the power boost of the reference signal from the network node includes: receiving the second information about the power boost of the signal from the network node through at least one of a system information block, a signaling sent to the UE, and a reference signal received by the first receiver.

[0063] According to an embodiment of the present disclosure, the information about the capability and / or type of the UE indicates the detection method or radio frequency index of the UE.

[0064] According to an embodiment of the present disclosure, when the information about the capability and / or type of the UE indicates that the UE supports OFDM detection, the power of the reference signal received by the first receiver is not boosted; or when the information about the capability and / or type of the UE indicates that the UE supports OFDM detection, the power of the reference signal received by the first receiver is boosted, and the boosted power is less than the boosted power when the UE does not support OFDM detection; or when the information about the capability and / or type of the UE indicates that the UE does not support OFDM detection, or when the information about the capability and / or type of the UE is not received, the power of the reference signal received by the first receiver is boosted.

[0065] According to an embodiment of the present disclosure, the reference signal received by the first receiver includes at least one of a low-power synchronization signal, a low-power wake-up signal, and a synchronization signal block; the reference signal received by the second receiver includes a synchronization signal block.

[0066] According to another aspect of the present disclosure, a method performed by a user equipment (UE) is provided, where the UE includes a first receiver and a second receiver, wherein the first receiver is a low-power receiver. The method includes: using at least one of multiple RF front-end links of the UE to receive a reference signal through the second receiver; and when radio resource management is offloaded to the first receiver, using any at least one of the multiple RF front-end links based on switching to receive the reference signal through the first receiver.

[0067] According to an embodiment of the present disclosure, receiving the reference signal through the first receiver includes: the first receiver cyclically uses each of at least one arbitrary path in the RF front-end link to receive the reference signal.

[0068] According to an embodiment of the present disclosure, receiving a reference signal through a first receiver includes: after the first receiver cyclically uses each of any at least one of the RF front-end links to receive the reference signal, selecting a RF front-end link from the arbitrary RF front-end links based on the reference signal measurement results of each of any at least one of the RF front-end links; using the selected RF front-end link to receive the reference signal through the first receiver; and cyclically performing the selection and reception processes.

[0069] According to an embodiment of the present disclosure, the reference signal received by the first receiver includes at least one of a low-power synchronization signal, a low-power wake-up signal, and a synchronization signal block; the reference signal received by the second receiver includes a synchronization signal block.

[0070] According to an embodiment of the present disclosure, the RF front-end link includes at least one of an antenna, a matching network, an antenna switch, a RF switch, a filter, an amplifier, a duplexer, a multiplexer, and a mixer.

[0071] According to another aspect of the present disclosure, a user equipment (UE) is provided, comprising: at least one transceiver configured to receive and send signals; and at least one processor coupled to the at least one transceiver and configured to execute the method according to the embodiment of the present disclosure.

[0072] According to another aspect of the present disclosure, a network node is provided, comprising: at least one transceiver configured to receive and send signals; and at least one processor coupled to the at least one transceiver and configured to execute the method according to the embodiment of the present disclosure.

[0073] According to another aspect of the present disclosure, a method performed by a user equipment (UE) is provided, wherein the UE includes a first receiver and a second receiver, wherein the first receiver is a low-power receiver, and the method includes: the UE receives a first reference signal through the first receiver; performs cell measurement based on the first reference signal; performs cell evaluation based on the measurement result and parameters related to low power consumption; and determines whether to trigger the second receiver to perform corresponding processing based on the cell evaluation result.

[0074] According to an embodiment of the present disclosure, performing cell measurement based on the first reference signal includes: measuring a serving cell and / or a neighboring cell in an idle state and / or an RRC inactive state based on the first reference signal.

[0075] According to an embodiment of the present disclosure, performing cell measurement based on the first reference signal includes: obtaining configuration information related to cell measurement; determining signal reception power information and / or signal reception quality information corresponding to the first reference signal based on the first reference signal and the configuration information related to the cell measurement, wherein the configuration information related to the cell measurement includes: at least one of a measurement timing configuration period based on the first reference signal, a period of the first reference signal, a power configuration of the first reference signal, a base station power boost gain, and configuration parameters of a low-power wake-up signal LP-WUS, wherein the configuration parameters of the low-power wake-up signal LP-WUS include at least one of: a paging indication, a WUS period, a UE group, a UE subgroup, a UEID, and a system information indication.

[0076] According to an embodiment of the present disclosure, the parameters related to low power consumption include a first measurement bias, which is related to at least one of the following: first parameter information configured by the network; second parameter information calculated by the UE; third parameter information related to the UE radio frequency implementation; and measurement margin.

[0077] According to an embodiment of the present disclosure, the first parameter information is related to at least one of the following: power boost related configuration information; and / or the second parameter information is related to at least one of the following: the sensitivity difference between the first receiver and the second receiver; the difference in measurement results obtained using the first reference signal and the second reference signal; and / or the third parameter information is related to at least one of the following: the antenna structure of the first receiver and the second receiver related to the UE RF implementation.

[0078] According to an embodiment of the present disclosure, cell evaluation is performed based on measurement results and parameters related to low power consumption, including: determining a first measurement bias based on the measurement results and parameters related to low power consumption; scaling the measurement results, and performing cell evaluation based on the first measurement bias and the scaled measurement results.

[0079] According to an embodiment of the present disclosure, scaling the measurement result, and performing cell evaluation based on the first measurement bias and the scaled measurement result, include: scaling the measurement result based on a first receiver structure-related parameter and / or a first low power consumption correction parameter; performing cell evaluation based on the first measurement bias and the scaled measurement result.

[0080] According to an embodiment of the present disclosure, performing cell measurement based on the first reference signal includes: determining a reference signal received power and / or reference signal received quality measurement result corresponding to the first reference signal based on the first reference signal and configuration information related to the cell measurement; and filtering the measurement result based on a measurement interval related to the first receiver.

[0081] According to an embodiment of the present disclosure, the measurement interval is related to at least one of the following parameters: a measurement timing configuration period of the first reference signal in the configuration information related to cell measurement, a measurement period of the first reference signal, and a discontinuous reception DRX period.

[0082] According to an embodiment of the present disclosure, the measurement timing configuration period based on the first reference signal is greater than a maximum value of the measurement timing configuration period based on the second reference signal, wherein the second reference signal is received by the second receiver.

[0083] According to an embodiment of the present disclosure, a cell evaluation is performed, including: determining the number and / or period of cell evaluation granularity based on at least one of a relaxation factor, a RF antenna switching factor, an evaluation granularity, a DRX cycle relaxation ratio, and a frequency-related scaling factor related to the first receiver; determining whether the cell evaluation criteria are met based on the measurement results, cell evaluation-related configuration information including low-power-consumption-related parameters, and the number and / or period of cell evaluation granularity; and determining whether to trigger a second receiver to perform corresponding processing based on the cell evaluation results, including: triggering the second receiver to perform cell reselection or cell selection if the cell evaluation criteria are met.

[0084] According to an embodiment of the present disclosure, the configuration information related to cell evaluation also includes: at least one of the period of the low power wake-up signal LP-WUS, the discontinuous reception DRX period, the low power cycle length, and the measurement timing period of the first reference signal.

[0085] According to an embodiment of the present disclosure, the evaluation granularity includes a first evaluation granularity associated with the first receiver and a second evaluation granularity associated with the second receiver.

[0086] The first evaluation granularity is determined in the following manner: based on at least one of the period of the first reference signal, the DRX period, and the measurement timing configuration period of the first reference signal in the configuration information related to the cell evaluation, the first evaluation granularity related to the first receiver is determined.

[0087] According to an embodiment of the present disclosure, the cell evaluation criterion is related to at least one of the following: a cell selection evaluation criterion threshold, a cell selection reception level value, and a cell quality value, wherein the cell selection evaluation criterion threshold is a first threshold related to the first receiver, or a second threshold related to the second receiver.

[0088] According to an embodiment of the present disclosure, cell evaluation is performed, including: determining whether the conditions for triggering the second receiver are met based on measurement results and parameters related to low power consumption; if met, waking up the second receiver and triggering neighbor cell measurement and / or serving cell measurement.

[0089] According to an embodiment of the present disclosure, performing cell measurement based on the first reference signal includes: measuring a serving cell based on the first reference signal, and if a neighboring cell supports low power consumption characteristics, measuring the neighboring cell based on the first reference signal.

[0090] According to an embodiment of the present disclosure, it also includes: the UE supports orthogonal frequency division multiplexing OFDM low power reception capability, triggering the first receiver and the second receiver to measure the serving cell and the neighboring cell based on the second reference signal.

[0091] According to an embodiment of the present disclosure, measuring a neighboring cell based on a second reference signal includes: determining, for a first receiver supporting OFDM low-power receiving capability, the number of beams corresponding to the second reference signal that the first receiver needs to measure based on an indication from the first receiver; and performing neighboring cell RRM relaxation measurement based on the second reference signal received by the first receiver.

[0092] According to an embodiment of the present disclosure, the method further includes: scaling the measurement results of the neighboring cells of the first receiver, and processing the scaled measurement results based on the second measurement bias; sorting the processed measurement results and the neighboring cell measurement results of the second receiver; and reselecting the highest-ranked cell according to the sorting results.

[0093] According to an embodiment of the present disclosure, the second measurement bias is related to at least one of the following: first parameter information configured by the network, second parameter information calculated by the UE, third parameter information related to the UE radio frequency implementation, UE radio frequency link automatic gain control inaccuracy, and other measurement margins.

[0094] According to another aspect of the present disclosure, a method performed by a network node is provided, the method comprising: sending a low-power wake-up signal to a UE; determining a number of successful wake-up times of the UE; and after completing a preset number of low-power wake-up signal transmissions, determining a UE measurement result based on a total cumulative number of transmissions and a number of successful wake-up times of the UE.

[0095] According to an embodiment of the present disclosure, it also includes: before sending a low-power wake-up signal to the UE, the network node sends a message to the UE to enter or activate the test mode, and receives a response message ACK reported by the UE; after sending the last low-power wake-up signal to the UE, the network node sends a message to the UE to exit or deactivate the test mode, and receives a response message ACK reported by the UE.

[0096] According to an embodiment of the present disclosure, the low-power wake-up signal sent to the UE includes at least one of a true low-power wake-up signal and a pseudo low-power wake-up signal, wherein the true low-power wake-up signal is a low-power wake-up signal for waking up the UE to be tested, and the pseudo low-power wake-up signal is a low-power wake-up signal or noise for waking up other UEs.

[0097] According to an embodiment of the present disclosure, determining the UE measurement result includes calculating at least one of a missed detection rate and a false wake-up rate, wherein the missed detection rate is determined based on the cumulative total number of true low-power wake-up signals and the corresponding number of successful wake-up signals, and wherein the false wake-up rate is determined based on the number of successful UE wake-up signals corresponding to the pseudo low-power wake-up signals and the cumulative total number of pseudo low-power wake-up signals.

[0098] According to an embodiment of the present disclosure, the network node sends a message to the UE to enter the test mode in a connected state, wherein the network node sends a low-power wake-up signal to the UE in an idle state, an inactive state, or a connected state.

[0099] According to an embodiment of the present disclosure, the message for entering or activating the test mode includes content instructing the UE's first receiver to perform a specific behavior after receiving a low-power wake-up signal, and / or an exit condition in which the UE's first receiver no longer maintains the specific behavior, wherein the exit condition is a preset value of the cumulative total number of low-power wake-up signals sent by the network node to the UE.

[0100] According to an embodiment of the present disclosure, the interval between the network node sending the low power consumption wake-up signal to the UE is a preset time interval.

[0101] According to another aspect of the present disclosure, a method performed by a user equipment (UE) is provided, wherein the UE includes a first receiver and a second receiver, wherein the first receiver is a low-power receiver, and the method includes: receiving, through the second receiver, a message for entering, activating, exiting, or deactivating a test mode sent by a network node, and sending a response message to the network node, wherein the test mode indicates a specific behavior of the UE's first receiver after receiving a low-power wake-up signal.

[0102] According to an embodiment of the present disclosure, when the UE is in the test mode state, the specific behavior is manifested in that the first receiver of the UE accumulates the number of successful wake-up times (but does not wake up the second receiver) after receiving the low-power wake-up signal until the exit condition is met, wherein the exit condition is that the cumulative total number of low-power wake-up signals sent by the network node to the UE reaches a preset value, or the UE exits or deactivates the test mode state.

[0103] According to an embodiment of the present disclosure, when the UE exits or deactivates the test mode state, or when the exit condition of the test mode is met, the first receiver of the UE wakes up the second receiver, and the second receiver reports to the network node the cumulative total number of successful wake-ups during the activation of the test mode, wherein the exit condition is that the cumulative total number of low-power wake-up signals sent by the network node to the UE reaches a preset value, or the UE exits or deactivates the test mode state.

[0104] According to an embodiment of the present disclosure, receiving a message for entering, activating, exiting or deactivating a test mode sent by a network node through a second receiver and sending a response message ACK to the network node are performed in a connected state; wherein, during the activation of the test mode, the specific behavior of the first receiver of the UE after receiving a low-power wake-up signal is performed in an idle state, an inactive state or a connected state.

[0105] According to another aspect of the present disclosure, a method performed by a network node is provided, the method comprising: sending a first reference signal to a UE, so that the UE performs cell measurement based on the first reference signal, the UE comprising a first receiver and a second receiver, wherein the first receiver is a low-power receiver, and the first reference signal is received by the first receiver; the UE sends evaluation-related information related to the first receiver, so that the UE performs cell evaluation based on measurement results, parameters related to low power consumption, and the evaluation-related information, and determines whether to trigger the second receiver to perform corresponding processing based on the cell evaluation result.

[0106] According to another aspect of the present disclosure, a method performed by a network node is provided, including: obtaining first information about a power boost of a reference signal; sending second information about the power boost of the reference signal to a user equipment UE, wherein the second information about the power boost of the reference signal includes at least one of the following: whether to boost the power of a reference signal received by a first receiver of the UE, the first receiver being a low-power receiver; whether to boost the power of a reference signal received by a second receiver of the UE; a power boost value of the reference signal received by the first receiver; a power boost value of the reference signal received by the second receiver; and a difference between the power boost value of the reference signal received by the second receiver and the power boost of the reference signal received by the first receiver.

[0107] According to another aspect of the present disclosure, a method performed by a user equipment UE is provided, including: sending first information about power boosting of a reference signal to a network node; receiving second information about power boosting of the reference signal from the network node, wherein the second information about power boosting of the reference signal includes at least one of the following: whether to boost the power of a reference signal received by a first receiver of the UE, the first receiver being a low power consumption receiver; whether to boost the power of a reference signal received by a second receiver of the UE; a power boost value of the reference signal received by the first receiver; a power boost value of the reference signal received by the second receiver; and a difference between the power boost value of the reference signal received by the second receiver and the power boost of the reference signal received by the first receiver.

[0108] According to another aspect of the present disclosure, a method performed by a user equipment (UE) is provided, where the UE includes a first receiver and a second receiver, wherein the first receiver is a low-power receiver. The method includes: using at least one of multiple RF front-end links of the UE to receive a reference signal through the second receiver; and when radio resource management is offloaded to the first receiver, using any at least one of the multiple RF front-end links based on switching to receive the reference signal through the first receiver.

[0109] According to another aspect of the present disclosure, a user equipment (UE) is provided, comprising: at least one transceiver configured to receive and send signals; and at least one processor coupled to the at least one transceiver and configured to execute any one of the methods described in the embodiments of the present disclosure.

[0110] According to another aspect of the present disclosure, a network node is provided, comprising: at least one transceiver configured to receive and send signals; and at least one processor coupled to the at least one transceiver and configured to execute any one of the methods described in the embodiments of the present disclosure.

[0111] According to an embodiment of the present disclosure, the technical effect of saving power is achieved by performing relevant configuration or measurement on signals with low power consumption characteristics, or improving the detection of signals with low power consumption characteristics, or combining the configuration of network equipment and the type and capabilities of user equipment to adjust the corresponding measurement and wake-up methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0112] Figure 1 An example wireless network according to various embodiments of the present disclosure is shown;

[0113] Figure 2a and Figure 2b Example wireless transmit and receive paths according to the present disclosure are shown;

[0114] Figure 3a An example user equipment UE according to the present disclosure is shown;

[0115] Figure 3b An example base station according to the present disclosure is shown;

[0116] Figure 4 is a schematic diagram of a UE supporting low power consumption characteristics according to an embodiment of the present disclosure;

[0117] Figure 5 is a schematic diagram of two measurement value intervals according to an embodiment of the present disclosure;

[0118] Figure 6 is a schematic diagram of a mobility scenario according to an embodiment of the present disclosure (there is an overlapping area between the serving cell and the neighboring cell);

[0119] Figure 7 is a flowchart of cell reselection according to an embodiment of the present disclosure;

[0120] Figure 8 is a schematic diagram of a mobility scenario according to an embodiment of the present disclosure (there is no overlapping area between the serving cell and the neighboring cell);

[0121] Figure 9is a schematic diagram of an antenna configuration according to a comparative example (LR architecture with an independent single antenna);

[0122] Figure 10 is a schematic diagram of an antenna configuration according to a comparative example (LR architecture sharing one MR antenna);

[0123] Figure 11 is a schematic diagram of an antenna configuration according to an embodiment of the present disclosure;

[0124] Figure 12 is a schematic diagram of an antenna operating mode (polling mode) according to an embodiment of the present disclosure;

[0125] Figure 13 is a schematic diagram of an antenna operating mode (polling antenna + fixed antenna mode) according to an embodiment of the present disclosure;

[0126] Figure 14 is a block diagram of a user equipment UE or a network node according to an embodiment of the present disclosure;

[0127] Figure 15 is a schematic diagram of a UE receiver structure with LR and MR according to an embodiment of the present disclosure;

[0128] Figure 16 is a flow chart of an existing energy-saving RRM measurement method using LR;

[0129] Figure 17 It is a schematic diagram of the problems existing in the existing energy-saving RRM measurement method using LR;

[0130] Figure 18 is an overall flow chart of energy-saving RRM measurement using LR and MR collaboration according to an embodiment of the present disclosure;

[0131] Figure 19 is a schematic diagram of an SMTC measurement window and measurement interval according to an embodiment of the present disclosure;

[0132] Figure 20 is a process diagram of MR awakening in different scenarios according to an embodiment of the present disclosure;

[0133] Figure 21 is a schematic diagram of a LR performance testing method in idle mode according to an embodiment of the present disclosure;

[0134] Figure 22 2 is a schematic diagram of a scenario of neighboring cell relaxation measurement according to an embodiment of the present disclosure;

[0135] Figure 23 It is a schematic diagram of the traditional testing method and its problems;

[0136] Figure 24Schematic diagram of the defects of the LR architecture with an independent single antenna;

[0137] Figure 25 FIG. 1 is a schematic diagram of an antenna structure in which a UE uses an LR designed as an MR subset for FR2 according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0138] Figure 1 An example wireless network 100 is shown in accordance with various embodiments of the present disclosure. Figure 1 The embodiment of the wireless network 100 shown in FIGURE 1 is for illustration only. Other embodiments of the wireless network 100 can be used without departing from the scope of this disclosure.

[0139] Wireless network 100 includes gNodeB (gNB) 101, gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one Internet Protocol (IP) network 130, such as the Internet, a private IP network, or other data network.

[0140] Depending on the network type, other well-known terms such as "base station" or "access point" can be used instead of "gNodeB" or "gNB." For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to network infrastructure components that provide wireless access to remote terminals. Also, depending on the network type, other well-known terms such as "mobile station," "subscriber station," "remote terminal," "wireless terminal," or "user device" can be used instead of "user equipment" or "UE." For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to a remote wireless device that wirelessly accesses a gNB, whether the UE is a mobile device (such as a mobile phone or smartphone) or what is typically considered a stationary device (such as a desktop computer or vending machine).

[0141] gNB 102 provides wireless broadband access to network 130 for a first plurality of user equipment (UEs) within gNB 102's coverage area 120. The first plurality of UEs includes: UE 111, which may be located in a small business (SB); UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R); UE 115, which may be located in a second residence (R); and UE 116, which may be a mobile device (M) such as a cellular phone, wireless laptop, or wireless PDA. gNB 103 provides wireless broadband access to network 130 for a second plurality of UEs within gNB 103's coverage area 125. The second plurality of UEs includes UE 115 and UE 116. In some embodiments, one or more of gNBs 101-103 may be capable of communicating with each other and with UEs 111-116 using 5G, Long Term Evolution (LTE), LTE-A, WiMAX, or other advanced wireless communication technologies.

[0142] The dashed lines illustrate the approximate extents of coverage areas 120 and 125, which are shown as approximately circular for purposes of illustration and explanation only. It should be clearly understood that coverage areas associated with gNBs, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the radio environment associated with natural and man-made obstacles.

[0143] As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of the present disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 supports codebook design and structure for systems with 2D antenna arrays.

[0144] although Figure 1 One example of a wireless network 100 is shown, but Figure 1 Various changes may be made. For example, wireless network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Furthermore, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. Furthermore, gNBs 101, 102, and / or 103 can provide access to other or additional external networks, such as an external telephone network or other type of data network.

[0145] Figure 2a and Figure 2bExample wireless transmit and receive paths according to the present disclosure are shown. In the following description, transmit path 200 can be described as being implemented in a gNB (such as gNB 102), while receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that receive path 250 can be implemented in a gNB and transmit path 200 can be implemented in a UE. In some embodiments, receive path 250 is configured to support codebook design and structure for systems with 2D antenna arrays as described in embodiments of the present disclosure.

[0146] The transmit path 200 includes a channel coding and modulation block 205, a serial-to-parallel (S-to-P) block 210, an N-point inverse fast Fourier transform (IFFT) block 215, a parallel-to-serial (P-to-S) block 220, an add cyclic prefix block 225, and an upconverter (UC) 230. The receive path 250 includes a downconverter (DC) 255, a remove cyclic prefix block 260, a serial-to-parallel (S-to-P) block 265, an N-point fast Fourier transform (FFT) block 270, a parallel-to-serial (P-to-S) block 275, and a channel decoding and demodulation block 280.

[0147] In the transmit path 200, the channel coding and modulation block 205 receives a set of information bits, applies coding (such as low-density parity check (LDPC) coding), and modulates the input bits (such as using quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulation symbols. The serial-to-parallel (S-to-P) block 210 converts (e.g., demultiplexes) the serial modulation symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT / FFT points used in the gNB 102 and UE 116. The N-point IFFT block 215 performs an IFFT operation on the N parallel symbol streams to generate a time-domain output signal. The parallel-to-serial block 220 converts (e.g., multiplexes) the parallel time-domain output symbols from the N-point IFFT block 215 to generate a serial time-domain signal. The add cyclic prefix block 225 inserts a cyclic prefix into the time-domain signal. The upconverter 230 modulates (such as upconverts) the output of the add cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at baseband before being converted to an RF frequency.

[0148] The RF signal transmitted from gNB 102 arrives at UE 116 after traversing the wireless channel. UE 116 performs operations that are the inverse of those performed at gNB 102. Downconverter 255 downconverts the received signal to baseband frequency, and cyclic prefix removal block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal into parallel time-domain signals. N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 275 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

[0149] Each of gNBs 101-103 may implement a transmit path similar to 200 for transmitting in the downlink to UEs 111-116 and may implement a receive path similar to 250 for receiving in the uplink from UEs 111-116. Similarly, each of UEs 111-116 may implement a transmit path 200 for transmitting in the uplink to gNB 101-103 and may implement a receive path 250 for receiving in the downlink from gNB 101-103.

[0150] Figure 2a and Figure 2b Each of the components in can be implemented using hardware alone, or a combination of hardware and software / firmware. As a specific example, Figure 2a and Figure 2b At least some of the components in the embodiment may be implemented in software, while other components may be implemented in configurable hardware or a mixture of software and configurable hardware. For example, FFT block 270 and IFFT block 215 may be implemented as configurable software algorithms, wherein the value of the number of points N may be modified according to the implementation.

[0151] Furthermore, although described as using FFT and IFFT, this is illustrative only and should not be construed as limiting the scope of the present disclosure. Other types of transforms can be used, such as discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT) functions. It should be understood that for DFT and IDFT functions, the value of the variable N can be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of the variable N can be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0152] although Figure 2a and Figure 2b Examples of wireless transmit and receive paths are shown, but Figure 2a and Figure 2b Make various changes. For example, Figure 2a and Figure 2b The various components in can be combined, further subdivided, or omitted, and additional components can be added according to specific needs. Figure 2a and Figure 2b It is intended to illustrate examples of the types of transmit and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communications in a wireless network.

[0153] Figure 3a An example UE 116 is shown in accordance with the present disclosure. Figure 3a The embodiment of UE 116 shown in FIGURE 1 is for illustration only, and Figure 1 UEs 111-115 can have the same or similar configurations. However, UEs have a variety of configurations, and Figure 3a The scope of this disclosure is not limited to any particular implementation of the UE.

[0154] UE 116 includes an antenna 305, a radio frequency (RF) transceiver 310, transmit (TX) processing circuitry 315, a microphone 320, and receive (RX) processing circuitry 325. UE 116 also includes a speaker 330, a processor / controller 340, an input / output (I / O) interface 345, input device(s) 350, a display 355, and memory 360. Memory 360 includes an operating system (OS) 361 and one or more applications 362.

[0155] RF transceiver 310 receives incoming RF signals from antenna 305, transmitted by a gNB of wireless network 100. RF transceiver 310 downconverts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuitry 325, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 325 sends the processed baseband signal to speaker 330 (such as for voice data) or to processor / controller 340 (such as for web browsing data) for further processing.

[0156] The TX processing circuit 315 receives analog or digital voice data from the microphone 320, or other outgoing baseband data (such as network data, email, or interactive video game data) from the processor / controller 340. The TX processing circuit 315 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceiver 310 receives the outgoing processed baseband or IF signal from the TX processing circuit 315 and up-converts the baseband or IF signal to an RF signal that is transmitted via the antenna 305.

[0157] The processor / controller 340 can include one or more processors or other processing devices and execute an OS 361 stored in the memory 360 to control the overall operation of the UE 116. For example, the processor / controller 340 can control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 310, the RX processing circuitry 325, and the TX processing circuitry 315 in accordance with well-known principles. In some embodiments, the processor / controller 340 includes at least one microprocessor or microcontroller.

[0158] Processor / controller 340 is also capable of executing other processes and programs residing in memory 360, such as operations for channel quality measurement and reporting for systems with 2D antenna arrays as described in embodiments of the present disclosure. Processor / controller 340 is capable of moving data into or out of memory 360 as required by the executed processes. In some embodiments, processor / controller 340 is configured to execute applications 362 based on OS 361 or in response to signals received from a gNB or operator. Processor / controller 340 is also coupled to I / O interface 345, which provides UE 116 with the ability to connect to other devices such as laptops and handheld computers. I / O interface 345 serves as a communication path between these accessories and processor / controller 340.

[0159] Processor / controller 340 is also coupled to input device(s) 350 and display 355. An operator of UE 116 can input data into UE 116 using input device(s) 350. Display 355 can be a liquid crystal display or other display capable of presenting text and / or at least limited graphics (such as from a website). Memory 360 is coupled to processor / controller 340. A portion of memory 360 can include random access memory (RAM), while another portion of memory 360 can include flash memory or other read-only memory (ROM).

[0160] although Figure 3a An example of a UE 116 is shown, but it is possible to Figure 3a Make various changes. For example, Figure 3a The various components in can be combined, further subdivided, or omitted, and additional components can be added according to specific needs. As a specific example, processor / controller 340 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Moreover, although Figure 3a The UE 116 is shown configured as a mobile phone or smartphone, but the UE can be configured to operate as other types of mobile or stationary devices.

[0161] Figure 3bAn example gNB 102 according to the present disclosure is shown. Figure 3b The embodiment of the gNB 102 shown in FIGURE 1 is for illustration only, and Figure 1 Other gNBs can have the same or similar configurations. However, gNBs have a variety of configurations, and Figure 3b The scope of this disclosure is not limited to any particular implementation of a gNB. It should be noted that gNB 101 and gNB 103 can include the same or similar structure as gNB 102.

[0162] like Figure 3b As shown in FIG, gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and receive (RX) processing circuitry 376. In some embodiments, one or more of the multiple antennas 370a-370n comprise a 2D antenna array. gNB 102 also includes a controller / processor 378, memory 380, and a backhaul or network interface 382.

[0163] RF transceivers 372a-372n receive incoming RF signals from antennas 370a-370n, such as signals transmitted by a UE or other gNB. RF transceivers 372a-372n downconvert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 376, which filters, decodes, and / or digitizes the baseband or IF signals to generate processed baseband signals. RX processing circuitry 376 sends the processed baseband signals to controller / processor 378 for further processing.

[0164] The TX processing circuitry 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 378. The TX processing circuitry 374 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. The RF transceivers 372a-372n receive the outgoing processed baseband or IF signals from the TX processing circuitry 374 and up-convert the baseband or IF signals into RF signals that are transmitted via the antennas 370a-370n.

[0165] The controller / processor 378 can include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 378 can control the reception of forward channel signals and the transmission of reverse channel signals via the RF transceivers 372a-372n, the RX processing circuitry 376, and the TX processing circuitry 374 in accordance with well-known principles. The controller / processor 378 can also support additional functionality, such as more advanced wireless communication functions. For example, the controller / processor 378 can perform blind interference sensing (BIS) procedures, such as those performed by a Blind Interference Sensing (BIS) algorithm, and decode received signals with interference signals subtracted. The controller / processor 378 can support any of a variety of other functions within the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0166] The controller / processor 378 is also capable of executing programs and other processes resident in the memory 380, such as a basic OS. The controller / processor 378 is also capable of supporting channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of the present disclosure. In some embodiments, the controller / processor 378 supports communication between entities such as web RTC. The controller / processor 378 is capable of moving data into or out of the memory 380 as needed by the executing processes.

[0167] The controller / processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or over a network. The backhaul or network interface 382 can support communication over any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as one supporting 5G or new radio access technology, or NR, LTE, or LTE-A), the backhaul or network interface 382 can allow the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 can allow the gNB 102 to communicate over a wired or wireless local area network or with a larger network, such as the Internet, via a wired or wireless connection. The backhaul or network interface 382 includes any suitable structure that supports communication over a wired or wireless connection, such as an Ethernet or RF transceiver.

[0168] Memory 380 is coupled to controller / processor 378. A portion of memory 380 can include RAM, while another portion of memory 380 can include flash memory or other ROM. In some embodiments, a plurality of instructions, such as a BIS algorithm, are stored in the memory. The plurality of instructions are configured to cause controller / processor 378 to perform the BIS process and decode the received signal after subtracting at least one interfering signal determined by the BIS algorithm.

[0169] As described in more detail below, the transmit and receive paths of gNB 102 (implemented using RF transceivers 372a-372n, TX processing circuitry 374, and / or RX processing circuitry 376) support aggregated communications with FDD cells and TDD cells.

[0170] although Figure 3b An example of a gNB 102 is shown, but the Figure 3b For example, gNB 102 can include any number of Figure 3a . As a specific example, an access point can include a number of backhaul or network interfaces 382, and the controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, while shown as including a single instance of TX processing circuitry 374 and a single instance of RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0171] Exemplary embodiments of the present disclosure are further described below with reference to the accompanying drawings.

[0172] The text and drawings are provided as examples only to help readers understand the present disclosure. They are not intended to, and should not be interpreted as, limiting the scope of the present disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art based on what is disclosed herein that the embodiments and examples shown may be modified without departing from the scope of the present disclosure.

[0173] Battery-powered wireless communication devices have a strong demand for reducing power consumption and increasing standby time. To meet this demand, a variety of power-saving technologies have emerged. For example, Discontinuous Reception (DRX) technology saves device power consumption by putting the main transceiver to sleep when there is no service transmission, and waking up at longer or shorter cycles (DRX cycles) to perform necessary signal reception according to the scenario. Generally, in the connected state (RRC_Connected), the user equipment wakes up at a shorter cycle to monitor the PDCCH signal. In the idle state or inactive state (RRC_Idle, RRC_inactive), the user equipment can wake up at a relatively longer cycle to listen for paging signals.

[0174] Because the primary transceiver is often high-power, even periodic wake-up still consumes considerable power, especially when there is no service demand. This wastes power. Increasing the discontinuous reception cycle (DRX cycle) can further reduce power consumption, but it also increases service response latency, affecting user experience.

[0175] In order to continue to reduce device power consumption without increasing latency, a low power wake up receiver (LP-WUR, sometimes further abbreviated as LR or WUR) technology has recently emerged. The main purpose of LP-WUR is to reduce UE energy consumption by keeping the MR in a sleep state for a long time, thereby extending battery life. Figure 4 As shown, because the main radio (MR) has a large power consumption, this technology uses a specially designed low-power LR in the user equipment to perform necessary monitoring functions, such as monitoring the low power synchronization signal (LP-SS) sent by the network (NW) for synchronization and / or measurement, and monitoring the low power wake-up signal (LP-WUS) sent by the NW to receive information sent by the network. The user equipment will wake up the MR to perform services when necessary (such as when a paging signal is received) based on the information received by the LR. When it is not necessary, the MR can remain in sleep mode for a relatively long time, thereby further saving power consumption. For more details, refer to Figure 15As shown in the figure. In idle mode, the MR performs RRM measurements based on the always-on SSB and monitors the paging signal during each DRX cycle to detect whether the NW is sending any information. This behavior consumes a lot of power. In idle mode, when the MR is asleep, the LR can receive LP-SS / SSS to perform RRM measurements. When the NW sends downlink data, it detects LP-WUS to wake the MR and monitor the paging signal.

[0176] Embodiments of the present disclosure include cell selection and cell reselection in idle or inactive mode.

[0177] In idle or inactive mode, after the UE is connected and a public land mobile network (PLMN) has been selected, the UE performs cell selection and cell reselection. The main UE behaviors / requirements of concern are: measurement and evaluation of the serving cell, measurement of intra-frequency NR cells, measurement of inter-frequency NR cells, and measurement of inter-RAT E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) cells.

[0178] In cell selection, one of the factors that can be considered is the suitability criterion / measurement criterion (the terms "suitability criterion" and "measurement criterion" can be used interchangeably in this disclosure), namely, the S criterion. The S criterion is defined as:

[0179] Srxlev>0 and Squal>0

[0180] in,

[0181] Srxlev = Q rxlevmeas – (Q rxlevmin + Q rxlevminoffset )– P compensation -Qoffset temp (1)

[0182] Squal = Q qualmeas – (Q qualmin + Q qualminoffset ) - Qoffset temp (2)

[0183] In the above formulas (1) and (2), Srxlev is the Rx level value (dB) for cell selection, Squal is the quality value (dB) for cell selection, and Q rxlevmeas is the reference signal received power (RSRP) value measured by the UE, Qqualmeas is the reference signal reception quality (RSRQ) value measured by the UE, Q rxlevmin The minimum RSRP level required in the cell selection / reselection indicator (NR) (dBm), Q qualmin is the minimum required quality value (dB) in the cell, Q rxlevminoffset As a result of the periodic search for higher priority PLMNs when camped normally in a VPLMN, the offset to the signaled Qrxlevmin, Q qualminoffset The Q of the transmitted signal taken into account in the Squal evaluation as a result of periodic searches for higher priority PLMNs when normally camped in a VPLMN qualmin The offset, P compensation Qoffset is the power compensation factor related to the UE power type, indicating the cell coverage. temp Temporary offset value (dB) applied to the cell for connection establishment failure.

[0184] If the UE successfully detects a cell and decodes the MIB and SIB, it will not camp on or register with the cell unless the cell meets the above-mentioned applicability S criteria, i.e., Srxlev > 0 and Squal > 0. The RSRP / RSRQ reported values and measured values satisfy the measurement-reporting correspondence.

[0185] The cells considered in cell reselection are at least one of the intra-frequency NR cells, inter-frequency NR cells, and inter-RAT E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) cells. The conditions that need to be considered for cell reselection include at least: absolute priority criterion and radio link quality criterion. For the purpose of UE power saving, the UE's measurement of neighboring cells (also referred to as adjacent cells or neighbor cells or neighboring cells in this article) needs to meet certain conditions. It is necessary to make a decision on the current resident cell based on this condition to decide whether to perform neighboring cell measurements. The following measurement rules are used to determine whether cell reselection needs to be performed:

[0186] For the same frequency cell measurement, when the serving cell satisfies Srxlev>S IntraSearchP and Squal>S IntraSearchQ When the UE does not need to perform the same-frequency neighboring area measurement or stop the same-frequency neighboring area measurement; otherwise, the UE needs to perform the same-frequency neighboring area measurement.

[0187] For inter-frequency and inter-radio access technology cell measurements, since multiple frequency layers appear in inter-frequency cell measurements, the reselection priorities of these frequency layers need to be considered. These priorities are configured in the system information SIB (for example, SIB4 or SIB5). The UE will try to check the priorities only between those cells specified in the SIB.

[0188] For intra-frequency cells and inter-frequency cells of equal priority, the cell reselection criteria include:

[0189] First, the conditions Srxlev ≤ SIntraSearchP or Squal ≤ SintraSearchQ must be met. Neighboring cell measurements are initiated, and measurement results for multiple candidate cells are obtained. The neighboring cells that meet the cell selection criteria (the S criteria) are selected. For these neighboring cells, the R criteria (Ranking) is determined, which is a ranking criterion based on RSRP results. The cell with the best RSRP result is then selected as the target neighboring cell.

[0190] The cell queuing criteria Rs for the serving cell and Rn for the neighboring cell are defined as

[0191] R s =Q meas,s +Q Hyst -Qoffset temp (3)

[0192] R n =Q meas,n +Qoffset-Qoffset temp (4)

[0193] In formulas (3) and (4), Q meas is the RSRP quality considered during cell reselection, the subscripts s and n correspond to the measurement cell and the target cell respectively, Qoffset is the cell offset, Q Hyst is the cell reselection hysteresis value, Qoffset temp is the temporary offset value (dB) applied to the cell, Q Hyst .

[0194] The UE needs to use the reference signal to measure the RSRP and RSRQ of the serving cell. The UE also needs to use at least two measurements to filter the SS-RSRP value (i.e. RSRP based on SSB measurement) and SS-RSRQ value (i.e. RSRQ based on SSB measurement) of the serving cell. In the set of measurement values used for filtering, the interval between at least two measurement values is at least DRX cycle / 2, see Figure 5Furthermore, the UE needs to evaluate whether the RSRP and RSRQ of the serving cell meet the cell selection S criterion within a period of time (evaluation period).

[0195] The DRX cycle configuration in NR can be: 320ms, 640ms, 1280ms or 2560ms.

[0196] The reference signals used for measurement need to be periodic. After the introduction of LP-WUS / LP-WUR, the reference signals that can be measured may include: SSB (PSS / SSS / PBCH DMRS), LP-WUS, and LP-SS.

[0197] In existing technologies, a UE needs to wait for periodic SSBs to perform measurements. The UE measures RSRP and / or RSRQ to check the quality of the cell it is camping on. For example, if the cell quality falls below a certain threshold, the UE will reselect a new cell. This ensures that the UE always camps on a reachable cell. The SSB period varies between 5ms and 160ms, with a cell-defined SSB period of 20ms.

[0198] In addition, because the UE does not know the actual SSB transmission period of the neighboring cell, the UE needs to detect the SMTC period, that is, the UE obtains the SMTC period / bias and duration from SIB1, and then performs SSB measurement according to the SMTC period. In the existing configuration, the maximum period of SMTC is 160ms. Regarding periodic LP-SS, at least for WURs that cannot receive existing PSS / SSS, WURs can use periodic LP-SS for RRM measurements (when MR unloads RRM measurements to LR). The LP-SS period is at least 320ms, for example, it can be 320ms, 640ms, 1280ms, 2560ms, 5120ms or 10240ms.

[0199] At the same time, LP-SS can also be used for at least coarse time synchronization of LP-WUR and at least coarse frequency synchronization of LP-WUR.

[0200] Regarding LP-WUS, it is used to wake up the MR to perform the normal NR process and can carry a portion of paging-related information, or carry a 1-bit index pointing to the paging-related information. For example, when the UE receives the paging-related information related to the UE carried by the LP-WUS, the LP-WUR in the UE can activate the MR to perform the normal NR steps. Because LP-WUS is a periodic signal, RRM measurements can also be performed. The LP-WUS period must be greater than at least one DRX cycle to ensure successful monitoring of paging occasions.

[0201] As mentioned earlier, the more mature DRX technology has reached a bottleneck in terms of power consumption, and its power savings are often achieved at the expense of increased latency. The emerging LP-WUS / LP-WUR technologies still have many specific technical issues to address.

[0202] For example, a specially designed low-power wake-up receiver (LR) requires a new RF architecture to achieve significantly lower power consumption than a MR. However, it is often difficult to simultaneously improve both power consumption and RF performance. Achieving low power consumption may also negatively impact network coverage. Different RF architectures may also mean that different types of terminal devices have different coverage capabilities, raising the question of how network equipment should handle this to balance existing network performance.

[0203] Alternatively, the RRM measurement that the main transceiver MR needs to perform periodically is an important operation for wireless communication terminals to maintain mobility. After using LP-WUS / LP-WUR technology, if the MR is woken up every time an RRM measurement is required, the power saving effect of the terminal will be greatly reduced. Therefore, it is very necessary to offload the RRM measurement that is conventionally required on the MR side to the LR.

[0204] The flow chart of the existing energy-saving RRM measurement method using LR is as follows: Figure 16 shown.

[0205] In step 16-1, the UE performs a cell search.

[0206] In steps 16-2 and 16-3, the network broadcasts measurement-related configuration and LR access.

[0207] In step 16-4, at T serv LR-based RRM measurement and evaluation are performed within the cell to perform cell selection. Specifically, step 16-4 may include the following steps:

[0208] Step 16-4-1: Based on the pre-configured threshold, the UE enters the LR measurement mode;

[0209] Step 16-4-2: Based on different LR receiver structures, the UE uses different reference signals (such as LP-SS or SSS) to measure the strength or quality of the downlink signal (i.e., Q rxlevmeasLR /

[0210] Q qualmeasLR );

[0211] Step 16-4-3: In T serv In the UE, the LR-based measurement results are used to evaluate whether the current cell is suitable for camping.

[0212] In step 16-5, based on the measurement result of the LR, the MR is awakened according to the LR-specific availability criteria.

[0213] If the LR-based relaxation measurement criterion / suitability criterion is not satisfied, the MR wakes up.

[0214] That is, if Srxlev LR <0 or Squal LR <0, the MR will wake up and measure all neighboring cells indicated by the serving cell.

[0215] However, existing LR-based energy-saving RRM measurements have the following major problems: performance is significantly degraded when using LR measurements, and the MR is woken up unnecessarily, resulting in additional power consumption. Figure 17 The problem is schematically depicted. Figure 17 The UE is located at point M in an area where the serving cell MR coverage, the serving cell LR coverage and the neighboring cell coverage overlap, and measurement values are obtained based on different reference signals using LR and MR.

[0216] Table 1

[0217]

[0218] In Table 1, PC3 UE represents a power class 3 UE, the measurement quantity LP-RSRP represents the LP-RSRP calculated based on the LP-SS; SS-RSRP represents the LP-RSRP calculated based on the SSB, and Srxlev is used to determine whether a cell is suitable.

[0219] Based on the differences between MR and LR as shown in Table 2 below, the RSRP of the measured cell obtained using MR and LR is different, and the performance of LR will be poor. (For example, in Table 1: Q rxlevmeasLR =-129dBm and Q rxlevmeasMR =-125dBm). Then according to formula (1) in the present disclosure, Srxlev = Q rxlevmeas -(Q rxlevmin +Q rxlevminoffset )-P compensation -Qoffset temp Calculated Srxlev LR and Srxlev MR Different, and the positive and negative are opposite. Here we calculate Srxlev based on different reference signals. LR and Srxlev MR In the process, in addition to Q rxlevmeas and Q rxlevminExcept for the different assumptions required, the values of other parameters in the two cases can be assumed to be the same.

[0220] Srxlev MR =Q rxlevmeasMR -((-127)+Q rxlevminoffset )-P compensation =-125+127=2>0

[0221] Srxlev LR =Q rxlevmeasLR -((-127)+Q rxlevminoffset )-P compensation =-129+127=-2<0

[0222] These contrasting results lead to opposite cell suitability decision methods for MR and LR. Specifically, using LR can lead to inaccurate UE behavior at point M and cause performance loss. Specifically, using LR can cause UE-initiated neighbor cell measurements or reselection processes to be inaccurate. Furthermore, the high false alarm rate of LR can cause unnecessary MR wakeups, resulting in additional MR power consumption.

[0223] Table 2

[0224]

[0225] At the same time, due to measurement inaccuracies, a UE supporting the LP-WUR feature may mistakenly reselect a cell covered by LR (a small coverage cell) instead of the desired normal range cell (the desired MR coverage cell) after mistakenly detecting that the cell in which it resides does not meet the existing suitability criteria.

[0226] This requires addressing the issue of how to measure MR and LR measurement results. Under LR operation, how to strike a balance between energy conservation and high performance? And how to use LR measurement results to determine whether to wake up the MR to perform necessary operations such as cell selection and reselection. Other issues exist. For example, in existing technologies, the maximum SMTC period is 160ms, while the LP-SS period is 320ms, 640ms, 1280ms, 2560ms, 5120ms, or 10240ms. The SMTC period is insufficient to cover LP-SS, meaning that the existing SMTC period does not match the LP-SS period. Based on the existing SMTC configuration, it is impossible to find a suitable measurement timing configuration period to perform LP-SS measurements, and thus, it is impossible to successfully perform RSRP / RSRQ measurements for RRM.

[0227] For example, in the prior art, the Tserv for the serving cell depends on the DRX cycle, but DRX is a basic configuration for energy saving for MR. In idle mode, it wakes up periodically to monitor the paging signal, or in connected mode, it wakes up periodically to monitor the PDCCH. However, LP-SS is only a signal used by LP-WUR, and there is no connection between LP-SS and the DRX cycle (MR mechanism). Therefore, if LP-SS is to be used for evaluation, DRX cannot be used as the granularity, nor can DRX / 2 be used as the interval between at least two measurement values during measurement filtering. Therefore, the existing maximum evaluation cycle definition is also not applicable to LP-WUR, that is, for the measurement and evaluation of the serving cell, the existing interval between at least two measurement values DRX cycle / 2 and the evaluation granularity DRX cycle are not applicable to LR.

[0228] For example, in the prior art, the evaluation process of the serving cell needs to consider the S criterion, and based on the RSRP / RSRQ measurement results of the serving cell, the UE needs to search for the strongest cell that meets the S criterion. In the neighboring cell reselection process, the Rs in the R criterion used for the serving cell also needs to be based on the RSRP measurement results. However, due to the low power consumption and low complexity LP-WUR requirements, LP-SS (signals greater than the SSB period) is used, and the signal reception quality received by the UE in the LR coverage area, and the calculated corresponding signal strength RSRP / RSRQ may be very small. In this case, if the existing S criterion / R criterion is used, it is impossible to find a suitable cell that meets the existing applicability standards, that is, the existing S criterion for cell selection and the existing R criterion for cell reselection are not applicable.

[0229] For example, in the prior art, if a cell supports LP-WUS / LP-WUR deployment, that is, supports sending LP-SS, and the UE supports this new feature, the cell should signal the new value in the new system information for LP-WUS / LP-WUR. These values may vary depending on the supported coverage area level and the priority of different frequency layers and need to be flexibly configured. At the same time, from the perspective of system information overhead, the current high-overhead system information design is not the optimal design for simple-function LP-WUS / LP-WUR and will also result in additional power consumption.

[0230] In response to the problems that still exist in the LP-WUS / LP-WUR technology mentioned above, the technical solution of the present invention can solve any one or more of the above technical problems. However, it does not mean that multiple of the above technical problems need to be solved or guaranteed at the same time. For example, based on the conventional LR architecture, the present invention proposes a new LR architecture based on a switching shared antenna or a shared RF front end based on different frequency ranges (FR1 / FR2), and proposes corresponding RRM measurement offload (MR RRM measurement offload to LR) solutions for the conventional LR architecture and the new switching shared LR architecture.

[0231] According to one aspect of the embodiments of the present invention, a flexible architecture design is introduced to improve the coverage performance of LP-WUS / LP-WUR terminals and increase the applicability of the power-saving technology.

[0232] According to another aspect of the embodiments of the present invention, by introducing a new RRM measurement and decision mechanism on the LR side, the reliability of RRM measurement using the LR is improved, thereby reducing the false wake-up rate and improving device power saving and performance.

[0233] According to an embodiment of the present disclosure, a UE uses a first receiver to perform RRM measurement of a serving cell, and determines a signal received power and / or signal received quality measurement result corresponding to the first reference signal based on the first reference signal and configuration information related to the cell measurement. The UE filters the measurement result based on a measurement interval related to the first receiver. Based on at least one of the following parameter information: first parameter information configured by the network and / or second parameter information calculated by the UE and / or third parameter information related to the UE radio frequency implementation and / or other measurement margins, the UE determines a first measurement bias of the first receiver. In combination with the first measurement bias, the UE scales the measurement result based on the first receiver to obtain measurement performance similar to that of the second receiver.

[0234] According to an embodiment of the present disclosure, the UE determines an evaluation period based on at least one of a relaxation factor and / or a radio frequency antenna switching factor and / or an evaluation granularity associated with the first receiver. Based on the LR scaling measurement result, the UE uses the first receiver to evaluate the cell at least once per the evaluation period based on the cell suitability criteria, and verifies whether the suitability criteria associated with the cell are met. If the suitability criteria are met, the UE wakes up the second receiver for subsequent cell reselection or reselects the cell.

[0235] Based on parameters related to low power consumption characteristics, measurement results, and an evaluation period, the UE uses a first receiver to perform a serving cell evaluation, and based on the cell evaluation result and a suitability criterion related to the cell evaluation, wakes up a second receiver. The serving cell evaluation includes: obtaining configuration information related to cell evaluation, the configuration information including parameters related to low power consumption characteristics; performing cell evaluation based on the measurement results and the configuration information related to the cell evaluation; wherein the configuration information related to the cell evaluation includes: at least one of a period of a low power consumption wake-up signal LP-WUS, a discontinuous reception (DRX) period, a low power consumption period length, and a measurement timing period of a first reference signal.

[0236] Based on parameters related to low power consumption characteristics, measurement results and evaluation period, the UE uses a first receiver to perform cell evaluation, and based on the cell evaluation result and the applicability criteria related to the cell evaluation, wakes up the second receiver, including: determining a first evaluation granularity related to the first receiver based on at least one of the period of the first reference signal, the DRX period and the measurement timing configuration period of the first reference signal in the configuration information related to the cell evaluation; determining an evaluation period based on the parameters related to the evaluation of the UE; and performing cell evaluation based on the evaluation period.

[0237] According to an embodiment of the present disclosure, the evaluation-related parameters of the UE include at least one of the following: a second evaluation granularity related to the second receiver, a first evaluation granularity related to the first receiver, a first relaxation factor related to the first receiver, parameters related to RF front-end link switching, a DRX cycle relaxation ratio, and a frequency-related scaling factor.

[0238] The second evaluation granularity associated with the second receiver is a discontinuous reception cycle (DRX cycle)

[0239] Based on parameters, measurement results and evaluation periods related to low power consumption characteristics, the UE uses a first receiver to perform cell evaluation, and wakes up the second receiver based on the cell evaluation result and the applicability criteria related to the cell evaluation, including: determining the applicability criteria related to the serving cell evaluation based on the cell selection evaluation criteria threshold, the cell selection reception level value, and the cell quality value.

[0240] The cell selection evaluation criterion threshold may be a first threshold associated with the first receiver, or a second threshold associated with the second receiver.

[0241] The applicability criteria related to neighbor cell evaluation are determined based on the cell reselection evaluation criterion threshold, the cell selection reception level value, the cell quality value, the cell reselection measurement rule, and the relaxed measurement rule.

[0242] The neighbor cell reselection evaluation criterion threshold may be a third threshold related to the first receiver and / or a fourth threshold related to the second receiver.

[0243] Based on parameters, measurement results and evaluation periods related to low power consumption characteristics, the UE uses a first receiver to perform cell evaluation, and based on the cell evaluation result and the applicability criteria related to the cell evaluation, wakes up the second receiver, including: scaling the measurement result of the first receiver based on the first receiver measurement bias, the first receiver structure-related parameters and the second low power consumption correction parameter, and obtaining the first applicability criterion related to the cell evaluation based on the scaled second measurement value and the first threshold related to the first receiver; wherein the second measurement value is related to the signal reception level value information corresponding to the first reference signal.

[0244] Based on parameters, measurement results and evaluation periods related to low power consumption characteristics, the UE uses a first receiver to perform cell evaluation, and based on the cell evaluation result and the applicability criteria related to the cell evaluation, wakes up the second receiver, including: scaling the measurement result of the first receiver based on the first receiver measurement bias, first receiver structure-related parameters and a third low power consumption correction parameter, and obtaining a second applicability criterion related to the cell evaluation based on the scaled third measurement value and a second threshold related to the first receiver; wherein the third measurement value is related to the signal reception quality information corresponding to the first reference signal.

[0245] Based on the parameters, measurement results and evaluation period related to the low power consumption characteristic, the UE uses the first receiver to perform cell evaluation, and based on the cell evaluation result and the applicability criteria related to the cell evaluation, wakes up the second receiver, including: obtaining the third applicability criterion related to the cell evaluation based on the relaxation measurement result obtained using the first receiver and the third threshold related to the low power consumption characteristic in the parameters related to the low power consumption characteristic; obtaining the fourth applicability criterion related to the cell evaluation based on the relaxation measurement result obtained using the first receiver and the fourth threshold related to the low power consumption characteristic in the parameters related to the low power consumption characteristic.

[0246] Based on the parameters related to the low power consumption characteristics, the measurement results and the evaluation period, the serving cell evaluation is performed, and based on the cell evaluation results and the applicability criteria related to the cell evaluation, the second receiver is awakened, including: determining whether the conditions for triggering the awakening of the second receiver are met, and if so, the UE wakes up the second receiver and triggers the neighboring cell measurement.

[0247] According to an embodiment of the present disclosure, determining whether the optimal neighboring cell is the reselected cell of the UE includes: for a first receiver that supports orthogonal frequency division multiplexing OFDM low power reception capability, based on the number of beams of the corresponding second reference signal that the first receiver needs to measure indicated by the first receiver, the UE uses the first receiver to perform neighboring cell RRM relaxation measurement.

[0248] According to an embodiment of the present disclosure, the UE compares the neighboring cell ranking by combining the second scaling measurement result of the first receiver and the measurement result of the second receiver to obtain a mixed neighboring cell ranking result. According to the ranking result, the UE automatically identifies and reselects to the highest ranked cell.

[0249] The UE scales the measurement result of the first receiver according to the second measurement bias of the first receiver, the first receiver structure-related parameters and the fourth low power consumption correction parameter to obtain the second scaled measurement result of the first receiver.

[0250] The second measurement offset of the first receiver is related to at least one of the following:

[0251] Based on first parameter information configured by the network, and / or second parameter information calculated by the UE, and / or third parameter information related to the UE radio frequency implementation, and / or UE radio frequency link automatic gain control inaccuracy, and / or other measurement margins.

[0252] Embodiments according to the present invention may include one or more of the following aspects:

[0253] Based on the existing conventional LR architecture, a switching-based multi-antenna (and / or multi-RF front-end) architecture is introduced on the LR side. The multi-antenna or multi-RF front-end is shared with the MR. Through the RF switch, the LR uses multiple antennas in a switching manner. For example, embodiments according to the present invention may include one or more of the following:

[0254] The antenna and / or RF front-end used by MR in a certain frequency band are exactly the same as those used by LR in the same frequency band;

[0255] The LR uses different antennas and / or RF front-ends in a polling manner to receive the low-power synchronization signal LP-SS sent by the network and perform synchronization and / or measurement. Optionally, after a certain number of polling measurements, the terminal can select the antenna with the best signal to receive.

[0256] The UE uses LR to perform serving cell RRM measurements and filters the measurement results based on the LR-related measurement interval. The UE determines the LR measurement bias based on a first parameter configured by the network, a second parameter calculated by the UE, and a third parameter related to the UE's RF implementation. Combined with the measurement bias parameter, the UE scales the LR-based measurement results to achieve performance similar to MR.

[0257] The first parameter is related to power boosting. When the network device sends a signal for LR reception (such as LP-SS) to the terminal device and performs power boosting, the network device informs the user device of the power boosting information (whether power boosting is performed, and / or the dB power boost, and / or the difference between the power boost of the reference signal for LR (such as LP-SS) and the power boost of the reference signal for MR (such as SSB). For example, embodiments according to the present invention may include one or more of the following:

[0258] 1. The power boost information of network equipment can be sent in the system information block; it can also be sent through signaling when the MR is working; this information can also be included in the low power reference signal such as LP-SS, and the UE receives it through the LR;

[0259] 2. Power boost information can be used in the RRM measurement and decision process. When considering the difference offset WUSoffset between LR and MR measurements, the deviation caused by this boost power information needs to be considered.

[0260] Optionally, the network device may determine whether to perform power boosting based on the capability or type of the user device.

[0261] The second parameter is related to the difference in sensitivity (REFSENS) between MR and LR, and the difference in measurement results using LR reference signals (RS) and MR RS.

[0262] • The third parameter is related to the UE RF LR-MR antenna structure and / or antenna sharing and switching mechanism or antenna separation mechanism.

[0263] The first parameter information is related to at least one of the following: power boost.

[0264] The second parameter information is related to at least one of the following: a sensitivity (REFSENS) difference between the first receiver and the second receiver and / or a measurement result difference obtained by measuring using the first reference signal and the second reference signal.

[0265] The third parameter information is related to at least one of the following: an antenna structure of a first receiver and a second receiver related to UE radio frequency implementation.

[0266] Embodiments according to the present invention may include one or more of the following aspects:

[0267] The UE determines the evaluation period based on the LR-related relaxation factor, the RF antenna switching factor, and the evaluation granularity. Based on the LR scaled measurement results, the UE evaluates the suitability criteria for the serving cell at least once during each evaluation period. This criterion, also known as the relaxed measurement criterion, is based on the LR coverage. When the new suitability criteria are met, the UE wakes up the MR and subsequently reselects the target cell.

[0268] For terminals that support this new and flexible architecture (LR-MR RF antenna switching architecture), different RRM measurement processes need to be performed. That is, when the user equipment is performing RRM offloading, the number N of switching antennas that the user equipment has needs to be considered. According to the value of N of the user equipment, a maximum evaluation period T that is adapted to it needs to be defined during RRM offloading. servLR Etc. Considering the UE capability of RF antenna switching mode, the evaluation period can be relaxed according to different values of N, N = {1, 2, 3, 4, 6, 8}.

[0269] Figure 23 Shows the traditional testing methods and existing problems.

[0270] refer to Figure 23 , problems with traditional testing methods can include:

[0271] Traditional test method in connected state: The UE reports measurement results to the test equipment (gNB emulator), possibly via the MR.

[0272] The LR mainly works in the idle state. In the idle state, the LR is working and the MR is asleep. The test equipment cannot obtain the UE's measurement results.

[0273] Embodiments according to the present invention may include one or more of the following aspects:

[0274] A new LR test method in idle mode is used to perform LR performance test to solve the problems existing in traditional test methods.

[0275] According to an embodiment of the present invention, the UE adaptively scales the measurement results of the first receiver to obtain measurement performance similar to that of the second receiver, including: scaling the measurement results of the first receiver based on the first measurement bias of the first receiver, the first receiver structure-related parameters and the first low-power correction parameters to obtain measurement performance similar to that of the second receiver.

[0276] Embodiments according to the present invention may include one or more of the following aspects:

[0277] For a LR OFDM-based receiver architecture, the UE uses the LR to perform relaxed RRM measurements of neighboring cells based on the number of SSS beams indicated for the LR. The UE adaptively biases and scales the LR-based measurements based on the LR measurements, and combines this scaled measurement with the MR measurement results to perform neighbor ranking. The UE automatically identifies and reselects to the highest-ranked cell based on the hybrid neighbor ranking results.

[0278] When the MR offloads the RRM measurement to the LR, the LR determines whether the MR needs to perform cell selection or cell reselection by measuring the low-power reference signal. For example, embodiments of the present invention may include one or more of the following:

[0279] Configure a new measurement timing configuration period, such as T SMTCLR or And extend its length for LR;

[0280] Configure a new interval of at least two measurements for LR;

[0281] Taking into account various influencing factors of terminals and network devices, determine the maximum evaluation period applicable to LR;

[0282] Determine whether cell selection or reselection is required based on the LR measurement results. Two methods are provided: one is to adjust the LR measurement results and make the judgment according to the MR criteria; the other is to provide a criteria directly applied to the LR results for judgment;

[0283] A method for correlating LR and MR measurement results is provided, including two methods for obtaining the LR measurement offset WUSoffset.

[0284] A new system information block (SIB) design, such as wusSIB, is provided to reduce configuration options and simplify functionality. At the same time, for UEs supporting LP-WUS / LP-WUR, the SI scheduling information needs to be pre-configured within the UE and broadcast periodically through the MIB or SIB1.

[0285] The embodiments of the present invention may be applied to cell selection / reselection in a mobility scenario where LP-WUS / LP-WUR is considered, but the embodiments of the present invention are not limited thereto.

[0286] According to the embodiments of the present invention, in order to ensure the reliability and availability of LR measurement results, so that MR can be woken up accurately enough and false positives and false negatives can be reduced, the following directions and methods can be focused on:

[0287] 1. According to an embodiment of the present invention, in order to make the existing SMTC period consistent with the low power signal LP-SS period T lP-SSMatching, extending the existing SMTC cycle length, making the measurement time configuration cycle

[0288] T SMTCLR , also known as the measurement time window, which can cover the existing maximum SMTC period of 160

[0289] ms, for example, the measurement time configuration period T for LR SMTCLR It can be defined as including 5

[0290] ms, 10ms, 120ms, 40ms, 80ms, 160ms, 320ms or at least one of the larger ones, the larger T SMTCLR For example, it can be 10240ms.

[0291] 2. According to an embodiment of the present invention, in order to include a sufficient number of samples when considering measurement filtering, the existing interval of at least two measurement values DRX cycle / 2 is applied to LR. A new measurement interval can also be defined. Specifically, the measurement interval can be defined as D=

[0292] operator(DRX cycle,T SMTCLR ,T LP-SS ) / A. Where A is a positive integer,

[0293] operator(·) is an operator, which can take the maximum value max(·) or the minimum value min(·). Among them, the SMTC measurement window and measurement interval are as follows: Figure 19 According to an embodiment of the present disclosure, the measurement interval is related to at least one of the following parameters: a measurement timing period of a first reference signal in configuration information related to cell measurement, and / or a measurement period of a first reference signal, and / or a discontinuous reception (DRX) period.

[0294] 3. According to embodiments of the present invention, two methods can be used to define the LR-related evaluation period. In Method 1, the evaluation period is defined by the LR-related relaxation factor M1, the RF antenna switching factor N, and the new evaluation granularity. In Method 2, the evaluation period is determined by the LR-related relaxation factor M1 and the RF antenna switching factor N, but the evaluation granularity remains the existing DRX cycle.

[0295] For method 1, the minimum LR cycle length applicable to LR-based evaluation is defined to replace the existing measurement granularity DRX cycle. The factors affecting this granularity may include DRX cycle, T SMTCLR 、T LP-SS One or more of them can be, for example, granularity=α(DRX cycle, based on the first SMTC cycle of LR, T LP-SS), where α is an operator that can be either the maximum value max(·), the minimum value min(·), or the average value average(·), or rounded up to ceil(·). The first SMTC period based on LR can be expressed as T SMTCLR or

[0296] At the same time, because the RSRP / RSRQ quality measured using low-power signals such as LP-SS is relatively low, a relaxed evaluation period (longer measurement period) requirement can be defined to ensure quality. The relaxation factor β can be defined as [0.32 / granularity], where [·] is the rounding operation. β can also be called the scaling ratio of the DRX cycle.

[0297] The evaluation period is also extended to take into account the RF antenna switching pattern. This is done by using the parameter N, which can be 1, 2, 3, 4, 6, or 8 depending on the antenna switching pattern.

[0298] At the same time, in idle mode, considering the conflict between LP-SS and paging indicated by LP-WUS, another relaxation factor M1 needs to be introduced when defining the evaluation cycle. For example, for a small DRX cycle with a maximum of 640ms, T SMTCLR / T LP-SS When it is greater than 40ms, M1=2, where the first SMTC period based on LR can be expressed as T SMTCLR or

[0299] The number of DRX cycles N applicable to LR is servLR or / Corresponding cell selection period T servLR or It can be defined as shown in Table 3 below (for FR1 only):

[0300] Table 3

[0301]

[0302]

[0303] For method 2, N for LR servLR 、T servLR It can be defined as shown in Table 4 below (only for FR1):

[0304] Table 4

[0305]

[0306] Regardless of whether method 1 or method 2 is used, LR can be used to achieve MR serving cell measurement relaxation.

[0307] The embodiments of the present invention propose multiple methods to ensure that the S criterion for cell selection and the R criterion for cell reselection are still applicable when RRM measurements are offloaded to LP.

[0308] The embodiment of the present invention can be applied to scenario 1: the serving cell uses RRM unloading, the neighboring cell does not use RRM unloading, and the coverage of the serving cell and the neighboring cell overlaps, such as Figure 6 shown.

[0309] In the case where the UE moves from outside the area to point A within the area of the serving cell, the UE uses the existing rules for cell selection, follows the NR procedure, and uses the specified maximum evaluation period N serv / T serv and the S criterion requirements for cell selection.

[0310] When the UE moves from point A to point B and is at point B, the UE enters the LR coverage area from the normal coverage area of the area. If the network supports LP-WUS / LP-WUR / WUR deployment and the UE has this feature, the MR sleeps. In this case, the NW sends a low-power signal, such as LP-SS, and the UE performs measurement and evaluation of the serving cell based on LP-SS. At the same time, in this case, the cell selection criteria and parameters based on LP-SS should enable the UE to still successfully reside on the serving cell. The most critical issue is whether the use of LP-SS (LR RS) can achieve performance comparable to that of using SSB (MR RS).

[0311] Solution 1-1: Based on the configured threshold of the MR (for example, the configured threshold can be 0), define a suitability criterion / relaxed measurement criterion related to the LR scaling measurement result and the minimum required reception level specific to the LR coverage area, which is referred to as the first suitability criterion in this patent and is defined as follows:

[0312] The S criterion in the reuse NR process is accompanied by the existing threshold 0, i.e.

[0313] Srxlev>0 and Squal>0

[0314] in,

[0315] Srxlev=f(Q rxlevmeasLR )-(Q rxlevminLR +Q rxlevminoffset )-P compensation -Qoffset temp (5)

[0316] Squal=f(Q qualmeasLR )-(QqualminLR +Q qualminoffset )-Qoffset temp (6)

[0317] Where f(·) is a scaling model, such as scaling model (1); the threshold can be 0, or S for the same-frequency measurement. lntraSearchP or S lntraSearchQ , and for the same / low priority different frequency measurement can be S nonIntraSearchP or S nonIntraSearchQ .

[0318] However, the following factors need to be considered:

[0319] 1) The UE has stored the SIB information received in normal coverage mode, or transmitted it to the LR through the MR to obtain the Q rxlevminoffset , Q qualminoffset 、P compensation 、Qoffset temp Other configuration information;

[0320] 2) Because the coverage of LR and MR is different, it is necessary to define the minimum required receiving level Q specific to the LR coverage area rxlevminLR and Q qualminLR , they are suitable for suitability checks within the scope of LP-WUR coverage;

[0321] 3) The measurement results based on LR need to be scaled to ensure that the threshold 0 remains unchanged, Srxlev LR (i.e. Srxlev corresponding to LP-WUS / LP-WUR / WUR) and Squal LR (i.e. Squal corresponding to LP-WUS / LP-WUR / WUR) needs to be very similar to Srxlev and Squal. LR and Squal LR Mainly based on RSRP LP_SS (i.e. RSRP value calculated based on LP-SS) and RSRQ LP_SS Considering that the RSRP / RSRQ values calculated using low-power signals such as LP-SS and ordinary signals such as SSB are different, it is necessary to use the LP-RSRP / LP-RSRQ obtained based on LP-SS measurement, that is, Q rxlevmeasLR and Q qualmeasLR Infinitely close to Q rxlevmeas (SS-RSRP) and Q qualmeas (SS-RSRQ) to meet the signal strength / quality criteria of MR based on SSB calculation.

[0322] To determine Q rxlevmeasLR(LP-RSRP) or Q qualmeasLR (LP-RSRQ) and Q rxlevmeas (SS-RSRP) or Q qualmeas (SS-RSRQ), it is first necessary to determine the LR measurement offset, which can be expressed as WUSoffset. According to the embodiments of the present disclosure, two methods can be used to determine WUSoffset. One is a calibration-based method, where WUSoffset can be related to one or more of the following factors: the first parameter (Offset) configured by the NW imbalance ) and / or the second parameter (Offset cal ), and / or a third parameter (Offset_antennaswitching) related to UE RF implementation, for example, can be calculated according to the following formula (7):

[0323] WUSoffset = Offset imbalance +Offset cal +Offset antennaswitching +small margin (7)

[0324] Among them, small margin To measure margin, including other losses and RF implementation margin; Offset antennaswitching Depending on the differences in LR-MR antenna architecture design and whether the UE supports antenna switching, the number of antennas can be {1, 2, 3, 4, 6, 8}.

[0325] According to the embodiments of the present disclosure, there are two optional LR-MR antenna structure designs:

[0326] Structural Design 1: Split Antenna Mechanism. The drawbacks of this design are: 1) Split antenna design leads to poor performance; 2) The phone requires more space to accommodate more antennas, which is very costly; 3) Separate receivers and antennas for FR2 are even more impractical. Furthermore, the split antenna design results in poor correlation between the MR and LR, which can cause the LR to wake up the MR too frequently (false alarms) or even miss detections. Defect explanation: Figure 24Specifically, the single-antenna LR architecture suffers from poor coverage compared to the multi-antenna MR architecture. Even with special design, the LR can achieve good coverage on average with a single antenna. However, another issue is that when the MR offloads RRM to the LR, the LR's measurement results (e.g., LP-RSRP) for reference signals (e.g., LP-SS) and the MR's measurement results (e.g., SS-RSRP) for reference signals (e.g., SSB) must be comparable, meaning the difference between the two measurements must be relatively stable. However, because wireless signals constantly change over time, the received power of signals received by different antennas often varies significantly. MRs typically have at least two antennas, and some may support four or even eight. The MR's received signal is the maximum value of multiple antenna measurements or the combination of individual signals. In this case, the difference between the single-antenna LR measurement and the multi-antenna MR measurement can be significant. Therefore, when offloading MR RRM to the LR, a larger margin must be retained when setting the offset between the LR and MR, increasing the likelihood of false wakeups.

[0327] Structure design 2: Antenna sharing mechanism based on different frequency bands (FR1 / FR2).

[0328] For FR1, the UE uses antenna sharing and switching between the LR and MR. This has the advantage of greater correlation between the RRM measurement results of the LR and MR, enabling RRM offload from the MR to the LR. Furthermore, this is cost-effective and easy to implement.

[0329] The embodiment of the present disclosure provides a multi-antenna LR design based on switching, in which the antenna of MR is shared with LR and connected to the LR receiver through a controllable switch device, such as Figure 11 When MR uses dual antennas for reception, the two MR antennas are also connected to LR through the switch device for reception.

[0330] According to an embodiment of the present disclosure, Figure 11 The switching device in the embodiment does not necessarily need to be an independent switch device. Any design that can achieve the switching effect of the present invention is included in the embodiments of the present invention.

[0331] According to an embodiment of the present disclosure, when the MR operates in certain frequency bands, it may support four or more antennas. Accordingly, all four antennas can be connected to the LR through a switch device for reception, or some antennas with better performance (such as two out of four) can be selected from the four antennas and connected to the LR through a switch for reception.

[0332] According to an embodiment of the present disclosure, the LR may use different antennas to receive low power consumption signals in a polling manner, such as Figure 12 shown.

[0333] According to an embodiment of the present disclosure, the antenna polling reception period of the LR may be as follows: Figure 15 The period of the LR antenna polling reception is the same as that of the low power reference signal (LP-SS), that is, one antenna is used for each LP-SS period. According to an embodiment of the present disclosure, the antenna polling reception period of the LR can also be an integer multiple of the LP-SS signal period.

[0334] According to the embodiment of the present disclosure, the LR can also select the best antenna after several rounds of polling measurements and fix it for a longer period of signal reception and measurement. After one or more cycles, the "polling antenna + fixed antenna" operation is repeated in a cycle, such as Figure 13 shown.

[0335] When performing RRM offloading, the user equipment must consider the number of switchable antennas N. The default value of N is 1, indicating that antenna switching is not supported. If N is greater than 1, the LR supports antenna switching. Typical values are 2 or 4, but can also be 3, 6, or 8.

[0336] According to an embodiment of the present disclosure, for FR2, the UE uses a LR designed as a subset of the MR. Figure 25 As shown in Figure 2, when the total beamforming component of all antenna elements is activated, it can be considered as MR, and when some antenna elements are activated, it can be considered as LR. The benefit of this design is that the RRM measurement results of LR and MR are highly correlated, thus offloading RRM from MR to LR. In addition, it is low-cost and easy to implement.

[0337] Return to reference formula (7), Offset imbalance This is the actual difference between the LR RS (LP-SS) and MR RS (SSB) powers (this difference occurs because LP-SS may perform power boosting). The power boosting configuration can be obtained from the NW and broadcasted through RRC Release or SIB(x).

[0338] Offset cal is the calculation error of the UE itself based on the reference signal. According to the embodiment of the present disclosure, it may be related to at least one of the following factors:

[0339] Offset REFSENS : The sensitivity difference between MR and LR (or the noise figure difference between MR and LR);

[0340] Offset RSRP / RSRQ : The difference in measurement results using LR RS and MR RS. That is, the difference between the two RSRP / RSRQ when the LR and MR receive the same signal power.

[0341] According to an embodiment of the present disclosure, the UE may adaptively scale the LR-based measurement results based on the LR receiver structure parameters and the above-mentioned WUSoffset.

[0342] According to the embodiment of the present disclosure, based on the UE receiver structure, the adaptive establishment from Q rxlevmeasLR (LP-RSRP) / Q qualmeasLR (LP-RSRQ) to Q rxlevmeas (SS-RSRP) / Q qualmeas (SS-RSRQ) mapping relationship.

[0343] Q qualmeasLR and Q rxlevmeas The relationship can be:

[0344]

[0345] Q qualmeasLR and Q qualmeas The relationship can be:

[0346]

[0347] In formulas (8) and (9), θ, μ are correction coefficients, which are generally set to 1 or close to 1. β1, β2, and β3 are related to the UE receiver structure. f1(·) and f2(·) are equivalent to Q rxlevmeasLR and Q qualmeasLR .

[0348] β1 is related to the LP-SS "1" symbol modulation ratio; β2 is related to the LP-SS "1" symbol coding ratio; and β3 is related to the ratio of the number of occupied REs. β1 = β2 = 1 if and only if OOK-1 modulation is considered and no coding is used.

[0349] T represents the duration of linear averaging of the LP-SS received power.

[0350] According to an embodiment of the present disclosure, another method is to dynamically determine the WUSoffset between the LR and MR based on measurement. Before switching from the MR operating state to the LR operating state, the MR and LR respectively measure their respective reference signals and, after a period of time, calculate the difference between the two as the WUSoffset.

[0351] Solution 1-2: The NW needs to indicate the new cell selection threshold A for cells that support LP-WUR or cells that are configured and support sending LP-SS through system information. LR and B LR , and design a new applicability S criterion / relaxation measurement criterion for LR, namely S LR, referred to as the second applicability criterion in this patent, to improve the uplink or downlink link coverage. LR and B LR They can be 0-Z1dB and 0-Z2dB respectively, where Z1 and Z2 are positive integers.

[0352] According to an embodiment of the present disclosure, a new threshold value A is defined. LR / B LR Applicability of S LR The guidelines are:

[0353] Srxlev LR >A LR And Squal LR >B LR

[0354] Srxlev LR 、Squal LR It is based on the signal reception power and quality of low-power signals such as LP-SS.

[0355] And at this time Srxlev LR 、Srxlev LR It can be defined as follows:

[0356] Srxlev LR =Q rxlevmeasLR –(Q relevminLR +Q rxlevminoffset )–P compensation -Qofset temp (10)

[0357] Squal LR =Q qualmeasLR –(Q qualminLP +Q qualminoffset )–Qofset temp (11)

[0358] The explanations of the parameters in formulas (10) and (11) are shown in Table 5 below:

[0359] Table 5

[0360]

[0361] In the solution 1-2, all parameters are cell-specific, and when the capabilities of the UE and the mapping between the MR and LR are different, the same and fixed Z1 and Z2 cannot cover all possibilities.

[0362] It is worth noting that, similar to solution 1-1, the threshold can be A LR and B LR , for the same frequency measurement it can be SIntraSearchPLR or S IntraSearchQLR , and for the same / low priority different frequency measurement can be S nonIntraSearchPLR or S nonIntraSearchqLR .

[0363] At the same time, this solution needs to consider the following factors:

[0364] 1) It is necessary to design a new system information SIB (for example, it can be expressed as SIB(x), where x is a positive integer, but the present invention is not limited thereto).

[0365] The cell should signal the UE the new configuration value in a new SIB (eg, SIB(x)) for LR.

[0366] 2) If the stored information cannot be used for cell selection at this time, the UE needs to perform initial cell selection.

[0367] Based on the above two methods, UE uses LR to measure the RSRP of the serving cell. LP_Ss and RSRQ LP_SS , and evaluate the new suitability criteria S defined for the serving cell at least once every M1×N1×N×β×LR cycle or M1×N1×N×DRX cycle. Then verify whether the LR-related suitability criteria / relaxed measurement criteria are met.

[0368] According to an embodiment of the present disclosure, the new serving cell measurement and evaluation process is summarized as follows:

[0369] Step 1: Power on the UE

[0370] Step 2: UE cell search / detection

[0371] It should be noted that not every cell supports LP-WUR configuration (ie, equipped with LP-SS), and MR and LR need to be downlink synchronized to the same cell. According to the embodiments of the present disclosure, two synchronization methods can be used.

[0372] Method 1: Both MR and LR need to be synchronized.

[0373] The network periodically sends SSB signals. The UE uses the MR to detect the SSB and decode the PSS, SSS, and PBCH to obtain cell time and frequency synchronization and the cell ID.

[0374] If the cell supports / deploys LP-WUR and the UE supports the LP-WUR feature, the network sends LP-SS periodically, and the UE uses LR to detect LP-SS for synchronization.

[0375] Method 2: MR requires mandatory synchronization, and LR synchronizes on demand.

[0376] The network periodically sends SSB signals. The UE uses the MR to detect the SSB and decode the PSS, SSS, and PBCH to obtain cell time and frequency synchronization and the cell ID.

[0377] Conditions for activating LR synchronization can include link data rate and power strength. For example, if the link data rate is low, the high-power MR is not needed. The UE can put the MR to sleep and use the LR for RRM measurements. In this case, LR synchronization can be achieved. For example, when the side condition / SNR level / BLER exceeds a threshold or the UE experiences a sufficiently high RSRP value in the serving cell, the MR can be put to sleep and the LR can be used for RRM measurements.

[0378] Step 3: The UE decodes the MIB information.

[0379] Step 4: The UE decodes SIB1 and other SIBs.

[0380] SIB1 can be a new system information 1 (SIB1) (such as newSIB1), including T SMTCLR or WUS information and other configuration information. SIB(x) can also be part of the new SIB1, and the new SIB1 also contains configuration information for cell selection / reselection

[0381] SIB(x) can also be an independent new SIB. After SIB1, the UE flexibly parses parameters according to whether it supports LP-WUS / LP-WUR.

[0382] If the network supports LP-WUR, the network can configure the corresponding values for the corresponding parameters. If the network does not support LP-WUR, the LP-WUR related parameters can be configured with the default value 'absent' or '0'.

[0383] Step 5: The UE performs a cell search.

[0384] After the UE is connected and a PLMN has been selected, the UE performs cell selection. There are two cell selection methods: 1) If cell information is stored for the PLMN, then stored cell selection is performed; 2) If cell information is not stored for the PLMN, then initial cell selection is performed. This step and subsequent steps represent initial cell selection.

[0385] UEs supporting the new feature (also referred to as UEs supporting LP-WUS / LP-WUR) can perform cell selection using solution 1 or 2, which may be implemented specifically according to the UE.

[0386] Step 5-1: UE supporting the new feature measures the serving cell. The UE supporting the new feature measures the RSRP and RSRQ levels of the serving cell using the LP-SS signal received by the LR. The UE needs to use at least two measurements to measure the RSRP of the serving cell. LP_SS and RSRQ LP_SS Perform measurement filtering. In a set of measurement values used for filtering, the interval between at least two measurement values is at least D. In addition, the UE needs to evaluate the period T. servLR Evaluate whether the RSRP and RSRQ of the serving cell meet the cell selection S criterion.

[0387] Step 5-1-1: If the UE does not detect the new system information SIB(x), the UE supporting the new feature will use the above formulas (8) and (9) to set Q relevmeasLR / Q qualmeasLR to convert.

[0388] Step 5-1-2: If the new system information wusSIB is detected, the UE supporting the new feature directly uses RSRP LP_SS / RSRQ LP_SS Get Q relevmeasLR or Q qualmeasLR

[0389] Step 5-2: Serving cell selection for UE supporting new features.

[0390] Step 5-2-1: If the UE does not detect the new system information SIB(x), and the converted Q is obtained by formulas (8) and (9): rxlevmeasLR and Q qualmeasLR , the cell selection can be determined by using the existing S criterion based on the parameter values decoded from the SIB information.

[0391] That is, if Srxlev>0 and Squal>0, the cell is called a suitable cell and the UE can camp on it. If no suitable cell is found, the UE selects any cell to camp on.

[0392] Step 5-2-2: If the UE detects the new system information SIB(x) and the new system information newSIB1, and obtains Q rxlevmeasLR or Q qualmeasLR UE decodes the parameter values from wusSIB and newSIB1 information and uses S WUS Criteria for cell selection.

[0393] That is, if Srxlev LR >A LR and Squal LR >B LR, then the cell is called a suitable cell and the UE can camp in it. If no suitable cell is found, the UE selects any cell to camp in.

[0394] Step 5-3: Find a more suitable cell and perform cell reselection.

[0395] When the UE moves from point B to point C and is at point C, the UE moves to the area covered by the LR of the serving cell, but overlaps with the normal area of the neighboring cell. In this case, the MR wake-up event will be triggered. The process of MR wake-up in different scenarios is shown in the figure below. Figure 20 As shown. The MR can be awakened according to a new suitability criterion based on the LR's measurement results. Specifically, the new suitability criterion is determined based on the LR scaled measurement results, the minimum required reception level specific to the LR coverage area, and the threshold configured for the MR. If the LR determines that co-frequency measurement is required, the UE waits to listen for the LP-WUS signal and wakes up the MR, i.e., the network triggers the MR to wake up. Whether the UE receives the LP-WUS signal within a time period (duration), for example, the time period can be Z seconds.

[0396] Scenario 1: Complete power saving. To maximize MR power savings, UEs that are stationary, not at the cell edge, or moving slowly can prioritize LR coverage over normal coverage. The MR can remain in sleep mode. In this scenario, the UE can remain in a cell supporting LR until the network-configured LR-related timer expires.

[0397] Scenario 2: Normal MR wakeup. According to an embodiment of the present disclosure, in this scenario, the following steps may be performed:

[0398] In step 20-1, when the LR entry condition is met, the UE enters the LR mode and maintains the LR operation.

[0399] After entering LR, the UE may maintain the LR operation state. According to an embodiment of the present disclosure, the entry condition may be that within the measurement time window, the condition |SS-RSRP|>preset threshold is satisfied. The preset threshold may be a network configuration and broadcast via a system message.

[0400] In step 20-2, including the MR threshold-based solution and the LR threshold-based solution, the UE performs serving cell measurements using the LR and evaluates the new suitability criteria / relaxed measurement criteria for the serving cell at least once every M1×N1×N×β×LR cycle or M1×N1×N×DRX cycle. The UE then verifies whether the suitability criteria / relaxed measurement criteria related to the LR are met.

[0401] In step 20-3, if data is transmitted, the UE detects the LP-WUS signal within Z ms and wakes up the MR to listen to the paging to ensure accurate and reliable time / frequency alignment between the LP-SS and LP-WUS.

[0402] In step 20-4, the MR wakes up successfully and restarts the cell search or performs a subsequent cell reselection evaluation process.

[0403] Scenario 3: MR wakeup based on LR exit conditions. According to an embodiment of the present disclosure, the LR exit conditions may include: SMTCLR or T LP-SS During this period, |(LP-RSRP)|<preconfigured threshold.

[0404] For scenario 2, MR wake-up decisions are made based on LR measurement results within the evaluation window.

[0405] Based on the LR scaling measurement results, the suitability of the current cell can be evaluated according to the first suitability criterion to wake up the MR for cell reselection or cell reselection evaluation. It is worth noting that the threshold configured for the MR can be 0, or S for intra-frequency measurement. IntraSearchP / S IntraSearchQ , or S for same / low priority different frequency measurement nonIntraSearchP / S nonIntraSearchQ .

[0406] Based on the measurement result of the LR, whether the current cell is suitable or not may be evaluated according to a second suitability criterion.

[0407] In the idle and / or inactive state, when the LR is used as a receiver, LR performance testing is also required to verify its performance. According to the embodiments of the present disclosure, two LR performance testing methods are provided. Method 1 is a performance testing process based on the normal signaling process. Method 2 is a performance testing process that defines a specific test mode. The two methods are as follows: Figure 21 As shown in (a) and (b).

[0408] refer to Figure 21 (a) In method 1, in step 2101, in idle state, MR enters sleep state. In step 2102, LR enters access state, and UE receives network simulator (i.e., test equipment, TE) message through LR. In step 2103, TE sends LP-WUS signal to UE and records the number of times N is sent. total If the decoding is unsuccessful, the UE will not wake up the MR and return to step 2103. The TE will continue to send the LP-WUS signal. totalIf the decoding is successful, proceed to step 2105, LR wakes up MR, MR and TE enter the connected state through the access process, so that TE learns that the wake-up is successful, and the number of successful wake-ups N success The value of is increased by 1, and then returns to step 2101. This cycle repeats until the total number of cumulative sending times reaches a preset value, such as 10,000 times.

[0409] refer to Figure 21 (b), in method 2, in step 2111, in the connected state, the UE receives a message for entering or activating the test mode from the TE through the MR, and the message for entering or activating the test mode contains content indicating the specific behavior of the LR after receiving the low-power wake-up signal, and / or the exit condition that the LR no longer maintains the specific behavior. According to an embodiment of the present disclosure, the specific behavior may be that the LR of the UE accumulates the number of successful wake-ups after receiving the low-power wake-up signal, but does not wake up the MR. In step 2112, after reporting the response message (ACK), the UE enters the idle state, at which time the MR enters the sleep state and the LR enters the access state. In step 2113, the UE receives the TE message through the LR. The TE sends an LP-WUS signal to the UE and records the number of transmissions N total If the UE receives the LP-WUS signal through LR monitoring and decodes it, in step 2114, if the decoding is unsuccessful, the MR is not awakened and the process returns to step 2113. The TE continues to send the LP-WUS signal. total In step 2114, if the decoding is successful, proceed to step 2115, LR still does not wake up MR, but records the number of successful wake-up times N success The value of is increased by 1, and then returns to step 2113. This cycle repeats until the exit condition is met, such as the cumulative total number of sends reaches a preset value, such as 10,000 times.

[0410] In the above method, if TE sends N total The real LP-WUS was then detected. success wake-up times, then the calculation of missed detection rate MDR is MDR=(N total -N success ) / N total If TE sends N total If there are false LP-WUS messages or noise messages, the false awakening rate FAR is calculated as FAR=N success / N total The pseudo low-power wake-up signal is a low-power wake-up signal or noise used to wake up other UEs.

[0411] According to an embodiment of the present invention, the interval between sending the low power consumption wake-up signal to the UE is a preset time interval.

[0412] According to an embodiment of the present invention, after sending the last low power consumption wake-up signal to the UE, the TE sends a message to the UE to exit or deactivate the test mode, and receives a response message ACK reported by the UE.

[0413] In the test mode of method 2, even if the LR detects LP-WUS and decodes paging information, the LR will not wake up the MR until the termination condition is met. It will wake up the MR. The test parameters configured for the LR should take into account the REFSENS difference between the MR and LR (i.e., the noise figure difference between the MR and LR). The test method according to the embodiment of the present disclosure has the advantage that the performance of the LR (such as MDR, FAR) can be tested in idle mode, solving the problem that performance indicators cannot be tested in the idle state. In particular, method 2 can accelerate testing and save test time.

[0414] According to an embodiment of the present disclosure, at this time, it is also necessary to consider the triggering of a cell reselection event, and various situations may occur according to the frequency reselection priority.

[0415] It is worth noting that cell reselection is based on the cell rank result, which can be cell-level or beam-level. It depends on whether the cell is configured with the rangeToBestCell parameter. If the cell is not configured with the rangeToBestCell parameter, the best cell the UE reselects to is the highest ranked cell. If the cell is configured with the rangeToBestCell parameter, the best cell the UE reselects to is the cell with the most beams above the good beam threshold.

[0416] Possible scenario 1)

[0417] To save power, the frequency reselection priority of the cell supporting LP-WUR is the highest.

[0418] According to an embodiment of the present disclosure, in order to consider power saving gains, the reselection rules and parameters should ensure that the UE gives priority to LR coverage rather than the normal range coverage of the neighboring cell, so that the UE always resides on the highest priority frequency covered by the LR. The priority can be set directly in SIB1 or a new SIB (including the same-frequency and different-frequency settings). A priority timer can be set. When the timer is within the expiration range / the timer has not expired, the reselection priority of the frequency of the serving cell that supports LP-WUR is the highest.

[0419] In this case, according to an embodiment of the present disclosure, when the UE is at point C, the UE does not wake up the host. This is MR wake-up event scenario 1, and PSS / SSS is not used for neighbor cell detection.

[0420] In this case, according to an embodiment of the present disclosure, since the UE is at the edge of a neighboring cell, the neighboring cell signal reception power and / or signal reception quality may be low, the SNR auxiliary condition level may be low, and the neighboring cell RRM measurement offloading condition may not be met.

[0421] Possible scenario 2)

[0422] According to the embodiment of the present disclosure, the serving cell performs RRM offloading, that is, the LR is used to perform the serving cell RRM measurement, and the neighboring cell still uses the MR. At this time, combined with the aforementioned MR wake-up event scenario 2, the two situations of the same-frequency cell and the inter-frequency cell are analyzed.

[0423] In the case of intra-frequency cells, according to the embodiments of the present disclosure, it is necessary to consider the measurement of intra-frequency cells and the reselection of intra-frequency cells.

[0424] 1) Measurement of the same frequency cell

[0425] According to the embodiments of the present disclosure, any suitable method may be used to solve the measurement problem of the intra-frequency cell.

[0426] 2) Reselection of the same frequency cell

[0427] If the UE wakes up the MR and starts neighbor cell measurement, and the reselection of the same-frequency cell is based on cell ranking, the RSRP values of the serving cell and the neighboring cells can be calculated and ranked to make a reselection decision.

[0428] Case 1. Since MR has already woken up at this time, cell reselection measurements can be performed based on MR. Therefore, the R criterion (i.e., the ranking criterion Rs of the serving cell and the ranking criterion Rn of the neighboring cell) can use the criterion specified by formula (12) and (13) NR,

[0429] R s =Q meas,s +Q Hyst -Qoffset temp (12)

[0430] R n =Q meas,n +Qoffset-Qoffset temp (13)

[0431] Among them, Q meas,n It is the received signal level value of the neighboring cell measured by MR based on SSB, that is, the RSRP value of the neighboring cell.

[0432] Case 2. In some cases, the UE can also perform neighbor measurements without waking up the MR. Specifically, if the UE does not wake up the MR but starts neighbor measurements, if the neighbor supports LP-WUR, the neighbor can also use the LR to perform neighbor measurements. meas,n It is also based on the received signal level value of the neighboring cell measured by LP-SS, that is, the Q meas,n,LR value.

[0433] Case 3. If the neighboring cell does not support LP-WUR, the following situations may occur:

[0434] Case 3-1: If the LR is not a UE that supports OFDM reception capability, then if the above-mentioned area overlap occurs, the UE does not support neighboring cell measurement. In this case, the cell covered by the LR has the highest priority.

[0435] Case 3-2: The UE uses the LR to perform neighbor measurements and serving cell measurements based on the synchronization signal block (SSB). The UE may be a UE whose LR supports OFDM reception. In this case, the LR is enabled, and the UE performs relaxed serving cell measurements and neighbor measurements based on the SSS.

[0436] According to an embodiment of the present disclosure, if the UE is at the edge of the cell, that is, at the edge of the serving cell LR coverage, normal coverage, and neighboring cell coverage. Since the OFDM waveform can achieve the target coverage range with lower resource consumption, then for the LR based on the OFDM receiver structure, since the LR can receive the SSS of the neighboring cell, if the LR does not exit, the UE can use the LR to perform serving cell relaxation measurement (using a long RRM long measurement period) and proportional neighboring cell RRM measurement to achieve neighboring cell relaxation measurement. The scenario diagram of neighboring cell relaxation measurement is as follows: Figure 22 shown.

[0437] If both MR and LR are enabled simultaneously, measurements from both MR and LR must be combined. However, this presents three challenges: 1) Since LP-RSRP and SS-RSRP have different values and levels (LR and MR have different measurement intervals or periods), how can the UE combine the measurement results based on the two measurement reference signals? 2) If the cell is configured with rangeToBestCell, the beam threshold is configured for MR and cannot be used for LR. 3) The UE cannot fairly compare different measurement results for ranking. These issues can degrade cell reselection performance.

[0438] According to an embodiment of the present disclosure, the solution may include at least the following two.

[0439] Solution 1: Although the LR can receive SSS, it does not perform measurements. The MR performs serving cell and neighbor cell measurements according to existing procedures and requirements. These requirements may include traditional intra-frequency cell measurement requirements and / or intra-frequency cell measurement requirements with relaxed measurement criteria. These criteria may be low-speed criteria and / or non-cell-edge criteria. The LR automatically exits after X1 ms or if an exit condition is met. X1 is a fixed or configurable integer.

[0440] Solution 2: LR relaxed measurement of the serving cell and LR measurement of some neighboring cells. To ensure that the LR measurement results meet the cell ranking settings configured for the MR and that the two types of measurement results can be fairly compared for cell ranking, the LR measurement results need to be scaled. The mapping relationship shown in formula (14) can be considered, which can also be called the power domain measurement scaling model:

[0441]

[0442] Where, ∈ is the correction coefficient, which is generally 1 or close to 1. The determination of WUSoffset3 is the same as that in the above solution 1-1, that is, one of the calibration-based method and the measurement-based method can be used. f3(·) represents Q meas,s,LR β1, β2, and β3 are related to the UE receiver structure. β1 is related to the LP-SS "1" symbol modulation ratio; β2 is related to the LP-SS "1" symbol coding ratio; and β3 is related to the ratio of the number of occupied REs. β1 = β2 = 1 when and only when OOK-1 modulation is considered and no coding is used. T represents the duration of the linear averaging of the LP-SS received power. Q meas,s,LR Based on formula (14), it represents the RSRP measurement amount based on LR in cell reselection. At this time, formula (12) becomes the following formula (15):

[0443]

[0444] The cell ranking is performed by combining the LR scaling measurement results and the MR measurement results. At this time, the network can broadcast the information configured for the MR in the neighboring cell information, which may include N and the beam absolute threshold. The threshold can determine which beam is a good beam. N here represents that for cell reselection, at least N beams above the absolute threshold can be used as candidate beams. The UE automatically identifies and reselects the highest ranked cell based on the mixed neighboring cell ranking result. According to an embodiment of the present disclosure, the cell ranking criterion R of the neighboring cell is n (Q meas,n ) Based on Q meas,n , but it comes from the combination of LR and MR, namely:

[0445] Ranking~Compare(Q meas,n,LR(K beam ),Q meas,n ) (16)

[0446] Among them, "~" represents the association symbol, indicating that Q meas,n,LR (K beam ) and Q meas,n Sorting by comparison, K beam Refers to the number of SSB beams indicated by the serving cell and measured by the LR, which is at least 1. For each K calculated by the LR beam , the mapping from LR to traditional RRM measurement scaling is shown in formula (17):

[0447] Q meas,n (K beam )~γ*Q meas,n,LR (K beam )+WUSoffset4 (17)

[0448] Among them, WUSoffset4 may be related to one or more of the following factors: the first parameter (Offset imbalance ), and / or a second parameter (Offset cal ), and / or a third parameter related to UE RF implementation (Offset_antennaswitching), and / or a fourth parameter related to UE RF AGC adjustment (Offset AGC ), and margin small margin , WUSoffset4 can be calculated as shown in formula (18):

[0449] WUSoffset4=Offset AGC +Offset antennaswitching +Offset cal +Offset imbalance

[0450] +small margin (18)

[0451] Among them, Offset AGC is the AGC adjustment inaccuracy, which is a constant; γ is the correction coefficient, which can be a random value of 1 or less than 1.

[0452] At this time, formula (16) becomes a comparison of the same level, as shown in formula (19):

[0453] Ranking~Compare(Q meas,n (K beam ),Q meas,n ) (19)

[0454] At the same time, since R n Contributed by LR and MR, then R n Expressed as formula (20):

[0455] R n =Combine(Q meas,n (K beam ),Q meas,n )+Qoffset-Qoffset temp (20)

[0456] Figure 7 This is a flowchart of intra-frequency cell reselection according to an embodiment of the present disclosure.

[0457] In step 701, the UE successfully initiates neighbor cell measurement and successfully triggers the cell reselection evaluation process.

[0458] In step 702, a neighboring cell that satisfies the S criterion is selected. The S criterion in the NR process can be reused.

[0459] In step 703, for neighboring cells that meet the S criterion, the R criterion is considered and the serving cell and neighboring cells are ranked (Rs and Rn) according to the measured RSRP results.

[0460] Among them, Q in Rn meas,n and Q meas,s It can be the measurement result of LR based on LP-SS or SSB; it can be the measurement result of MR based on SSB; alternatively, Q meas,s is the measurement result of LR based on SSB, Q meas,n It is the common measurement result of MR and LR based on SSB;

[0461] In step 704, the UE selects the neighboring cell with the highest signal reception quality level Rn as the best cell (ie, the cell with the highest quality level, best cell) and defines it as the target cell.

[0462] In step 705, it is determined whether the selected best cell meets the following two conditions:

[0463] Condition 1: Whether the best cell satisfies the R criterion Rn>Rs for a specific period of time.

[0464] Condition 2: Whether the UE stays in the current cell for more than 1 second.

[0465] If both the R criteria and the residency condition are met, the process proceeds to step 706 and the UE reselects to the cell; otherwise, the process proceeds to step 707 and the UE continues to reside in the original cell.

[0466] In the case of inter-frequency cells, according to the embodiments of the present disclosure, it is necessary to consider the measurement of the inter-frequency cells and the reselection of the inter-frequency cells.

[0467] 1) Measurement of inter-frequency cells

[0468] According to an embodiment of the present disclosure, frequency priorities need to be compared.

[0469] According to one aspect of the embodiment, if the inter-frequency point has a higher priority than the current serving frequency point, the UE will reselect neighbor cell measurements on them regardless of the quality of the serving cell, and the UE directly uses the neighbor cell SSB for neighbor cell measurements.

[0470] According to another aspect of the embodiment, if the priority of the inter-frequency point is lower than or equal to the priority of the current serving frequency point, it is necessary to determine the inter-frequency measurement criteria. There are also two solutions to the inter-frequency measurement criteria. Compared with the above-mentioned same-frequency measurement, only the threshold is different but the design concept is similar. Here is a brief description:

[0471] Solution 2-1:

[0472] Step 2-1: The LR determines whether the UE has an inter-frequency measurement opportunity.

[0473] According to the embodiment of the present disclosure, the inter-frequency cell measurement judgment criterion can reuse the measurement rules in the NR process, that is,

[0474] Srxlev<=S nonIntraSearchP And Squal<=S nonIntraSearchQ (twenty one)

[0475] To ensure that the same threshold can be used, the Srxlev calculated using low-power reference signals such as LP-SS / SSS is used according to different UE receiver structures. LR and Squal LR It should be very similar to Srxlev and Squal. The required processing method is as described in Solution 1-1.

[0476] When the coverage cell satisfies Srxlev>S nonIntraSearchP and Squal>S nonIntraSearchQ When the priority of the inter-frequency point is lower than or equal to the priority of the current serving frequency point, the UE does not need to perform inter-frequency measurement; otherwise, the UE needs to perform inter-frequency measurement.

[0477] Step 2-2: If the LR determines that a measurement opportunity is required, the UE waits to monitor the LP-WUS signal and wakes up the MR.

[0478] When the UE receives a low power reference signal such as an LP-WUS signal within a certain time period (e.g., Z seconds), the MR is normally awakened and the MR uses the NR inter-frequency measurement rule to re-determine whether to measure the inter-frequency neighboring cell.

[0479] If the serving cell satisfies Srxlev>S nonIntraSearchP and Squal>S nonIntraSearchQ When , the UE does not choose to perform equal or low priority inter-frequency measurement, otherwise it performs measurement.

[0480] If the UE does not receive a low power reference signal, such as an LP-WUS signal, within a certain time period (e.g., Z seconds), the MR is not awakened. At this time, the UE can choose whether to measure the inter-frequency neighboring cell based on the LR judgment result according to the implementation.

[0481] According to an embodiment of the present disclosure, Z may be defined as the period / allowable time interval of the minimum LP-WUS signal, such as a maximum time offset from LP-WUS to LP-SS of 3 μs.

[0482] Similarly, for the MR wakeup in step 2-2, according to the aforementioned MR wakeup mechanism, the UE can also autonomously wake up the MR without network triggering. In this case, if the LR determines that there is an inter-frequency measurement opportunity, it autonomously wakes up the MR. The MR then further determines whether the NR-based inter-frequency measurement rules are met, that is, no network triggering is required.

[0483] Solution 2-2

[0484] According to the embodiment of the present disclosure, the judgment criteria for inter-frequency cell measurement can be based on the judgment of the new inter-frequency measurement rule, that is,

[0485] Srxlev LR ≤S nonIntraSearchPLR and Squal LR ≤S nonIntraSearchQLR (twenty two)

[0486] Srxlev LR and Squal LR The definition of S is described in Solution 1-2. The network notifies the UE of the new threshold S using new system information such as SIB(x) or signaling. nonIntraSearchPLR and S nonIntraSearchQLR .

[0487] 2) For inter-frequency cell reselection

[0488] According to an embodiment of the present disclosure, when an inter-frequency cell has the same priority as a serving cell, the S criterion and the R criterion may be used. For specific processing methods and procedures, refer to the reselection of the same-frequency cell.

[0489] According to an embodiment of the present disclosure, when an inter-frequency cell has a different priority from that of a serving cell, cell reselection may be performed on a high-priority inter-frequency cell, or on a low-priority inter-frequency cell.

[0490] If the following conditions are met at the same time, the cell reselection will select the high-priority inter-frequency cell:

[0491] -UE is in the current serving cell for more than 1 second;

[0492] - In the system information SIB4, the Srxlev of the evaluated neighboring cell is greater than the parameter indicated by the system information, such as threshX-HighP (ThreshX, HighP) broadcast in SIB4.

[0493] If the following conditions are met at the same time, the cell reselection will select the low-priority inter-frequency cell:

[0494] - None of the high-priority inter-frequency neighboring cells meet the high-priority cell reselection conditions;

[0495] -UE is in the current serving cell for more than 1 second;

[0496] - Within the inter-frequency neighbor cell reselection time broadcast in system information SIB4 (for example, it can be a fixed 1s), the following conditions are met at the same time:

[0497] The Srxlev value of the serving cell is less than the parameter indicated by the system information, such as threshServingLowP of SIB2. Srxlev can be obtained according to Solution 1-1 and Solution 1-2, which are not repeated here.

[0498] The Srxlev of the evaluated neighboring cell is greater than the parameter indicated by the system information, such as threshX-LowP of SIB4.

[0499] According to an embodiment of the present disclosure, the Srxlev of the neighboring cell can be obtained through the SSB of the neighboring cell.

[0500] When the UE moves from point C to point D and is at point D, the UE moves from the serving cell that supports LP-WUR to the neighboring cell that does not support LP-WUR, and the UE is at the intersection of the normal ranges of the two cells. In this case, the UE uses MR to perform neighbor cell measurement and reselection, that is, the UE uses the normal NR reselection process. Once the reselection rules (for example, S criteria and R criteria) are met, the UE performs a new cell reselection.

[0501] At the same time, when the UE moves from the LR coverage area to the normal range of the neighboring cell, the UE may trigger the reading of system information. At this time, the information received from the system information will replace any previously stored information. At the same time, although the applicability criteria of the neighboring cell / frequency (for example, S criteria or R criteria) are not updated, the UE at least needs to know whether the neighboring cell supports LP-WUR.

[0502] When the UE moves from point D to point E and is at point E, it moves within the neighboring cell. The neighboring cell becomes the serving cell. In this case, the system information of the neighboring cell is already stored at point D. The UE can now use the SSB of the neighboring cell for cell selection.

[0503] The embodiment of the present invention can be applied to scenario 2: the serving cell uses RRM unloading, the neighboring cell does not use RRM unloading, and the coverage of the serving cell and the neighboring cell does not overlap, such as Figure 8 shown.

[0504] This scenario differs from scenario 1 in that the normal coverage of the serving cell and the neighboring cell do not overlap. The problem is that the power saving gain is reduced due to the need to frequently switch between LP-WUR and MR.

[0505] When the UE moves to point A, the UE moves from outside the area to within the area of the serving cell. The UE uses the existing rules for cell selection, follows the NR process, and uses the specified maximum evaluation period Tserv and S criterion requirements.

[0506] When a UE moves from point A to point B and is at point B, it enters the LR coverage area from the normal coverage area of the cell. If the network supports LP-WUS / LP-WUR and the UE has this feature, the MR sleeps. In this case, according to embodiments of the present disclosure, the UE uses low-power reference information, such as LP-SS, to measure and evaluate the serving cell. At the same time, in this case, the cell selection criteria and parameters based on LP-SS should enable the UE to successfully camp on the serving cell.

[0507] The possible situations and corresponding treatment methods are the same as those in Scenario 1.

[0508] When the UE moves from point B to point C and is at point C, the UE moves from the LR coverage area of the cell to the normal coverage area of the cell. The UE activates MR and uses SSB to select or reselect a cell.

[0509] When the UE moves from point C to point D and is at point D, neighbor cell processing based on the NR process.

[0510] According to the RRM measurement and decision mechanism on the LR side of the embodiment of the present disclosure, the reliability of RRM measurement using LR can be improved, thereby reducing the false wake-up rate and improving the power saving effect and performance of the device.

[0511] Embodiments of the present disclosure include designing new system information that supports low power consumption performance, such as a system information block SIB(x), where x is a positive integer, through which LR configuration parameters can be transmitted. New system information such as SIB(x) is only applicable to cells that support / deploy LP-WUR. It can have the same or different content as existing system information. New system information such as SIB(x) can be designed to have: the same ASN.1 structure and the same values; the same ASN.1 structure but different values; or different ASN.1 structures and different values.

[0512] Considering the reduction of UE complexity and UE power consumption, according to the embodiments of the present disclosure, the design criteria of new system information, such as SIB(x), include: using a smaller message size; and containing less information than traditional system information, that is, reducing configuration options and simplifying functions. At the same time, for UEs supporting LP-WUR, the system information (i.e., SIB(x)) scheduling information needs to be pre-configured within the UE and periodically broadcast through the master information block MIB or system information SIB1 or new system information newSIB1.

[0513] The SIB(x) can be broadcast in a short periodicity, and the LR configuration needs to consider the compatibility of the UE's receiving capabilities. Specifically, the LP-WUR SIB can be obtained through flexible short SI periodicity broadcasts, such as 80ms. Or the UE can obtain it on demand. The LR configuration in the SIB(x) needs to be compatible with both UE receiving capabilities (OOK-based receivers and OFDM-based receivers).

[0514] The LR parameters transmitted in the new SIB(x) may include one or more of the following:

[0515] Introducing an indication in the SI that the cell supports LP-WUR operation, which can be implemented with a 1-bit flag;

[0516] Introducing measurement quantities that need to be reported, which can be one or more of the following: LP-RSRP / PSRQ / RSSI / SINR;

[0517] Configure pre-processing cell quality thresholds to determine whether to enter or exit LP-WUR;

[0518] Configure mandatory LP-SS measurement parameters, such as time or frequency configuration;

[0519] Configure LP-WUS parameters, such as paging indication information, WUS period, UE group, UE subgroup (UE-subgroup) or UE ID, SI change indication, and system information indication;

[0520] To support each frequency point of the LR operating cell, configure the default cell selection appropriate factor and take into account the small UL and / or DL coverage;

[0521] Configure the priority of the cell supporting LR operation. If the cell priority is the same as the serving cell, the priority configuration can be left as is.

[0522] gNB power boost gain.

[0523] The new SIB may include one or more of the contents shown in Table 6.

[0524] Table 6

[0525]

[0526]

[0527]

[0528] By using the system information block according to the embodiment of the present disclosure, it is possible to achieve, for example, that the network can flexibly configure the parameters required for LP-WUR for UEs that support the new LP-WUR / LP-WUS features based on the deployment conditions, coverage areas, and priorities of different frequency layers supported by the operator. At the same time, in terms of the overhead of the system information SIB, the new SIB design contains fewer information bits, is simplified, and has low power consumption, making it more suitable for LP-WUR with simple functions. At the same time, using a small-sized SIB can reduce the time to obtain the LP-WUR configuration from the NW, avoid unnecessary SIB broadcast overhead of the NW, and reduce UE power consumption.

[0529] It is worth noting that LR-related measurement configurations can also be broadcast through existing SIBs and RRCRelease. For example, if the UE is released from the connected state and returns to the idle or inactive state, the NW can transmit the corresponding configuration information through RRCRelease.

[0530] Embodiments of the present disclosure include a switching-based multi-antenna LR design and RRM measurement method.

[0531] It should be noted that in this specification, for the sake of convenience, only the antenna is used as an example, but the present invention also includes the switching design of devices such as multi-channel RF front-end links (for example, each channel may contain one or more of an antenna, a matching network, an antenna switch, an RF switch, a filter, an amplifier, a duplexer, a multiplexer, a mixer, etc.).

[0532] Low Power Wake-up Receiver LR For low power performance, current technology adopts a single receive chain (1RX chain) architecture, which may include an LR architecture with an independent single antenna, such as Figure 9 As shown. Alternatively, an LR architecture sharing one MR antenna can be used, such as Figure 10 shown.

[0533] According to the value of N of the user equipment, when RRM is unloaded, it is necessary to define the sampling interval and N of the RRM measurement that are adapted to it. servLR , period T servLR Etc., and its impact should be considered when determining WUSoffset. For details, refer to Solution 1-1.

[0534] By introducing switching-based multi-antennas for LR, coverage is improved through multi-antenna switching diversity, and the similarity and comparability of LR RRM measurement results with MR measurement results are improved, thereby reliably performing RRM measurement evaluation of MR through LR.

[0535] Embodiments of the present disclosure include network device power boosting.

[0536] LR coverage is slightly worse than MR coverage. Therefore, when network devices transmit low-power signals (such as LP-SS and LP-WUS) for LR reception, boosting the signal power will help improve coverage. However, not all network devices support power boosting for low-power signals. When a network device boosts the power of the LP-SS reference signal for LR but does not boost the power of the signal for MR, such as the SSB reference signal (in this specification, various signals for MR can be referred to as normal signals), if the UE is unaware of the power difference between the two, a large error will occur when the LR's RRM measurement results are used for the MR's RRM evaluation.

[0537] On the other hand, the reference signal LP-SS for LR and the reference signal SSB for MR are both power-boosted, but the power-boost values are different, which will also cause RRM measurement errors.

[0538] Embodiments of the present disclosure provide a method for collaboration between a network device and a terminal device to address this problem. Before, simultaneously with, or after the network device sends a signal for LR reception (e.g., LP-SS) to the terminal device and performs power boosting, it informs the user device of power boosting information. According to embodiments of the present disclosure, the power boosting information may include one or more of the following: whether power boosting is performed, the power boosting amount in dB, the difference between the power boosting of the reference signal used for the LR (e.g., LP-SS) and the power boosting of the reference signal used for the MR (e.g., SSB), etc. The power boosting information of the network device can be sent in a system information block; it can also be sent via signaling when the MR is operating; or this information can be included in a low-power reference signal (e.g., LP-SS) and received by the UE via LR. After the UE obtains this power boosting information, it can be used in the RRM measurement and decision process. Specifically, it can consider factors related to power boosting when determining the WUSoffset. See the two methods for determining the WUSoffset described above.

[0539] Optionally, the network device may decide whether to perform power boosting based on the capabilities or type of the device being used. The implementation methods of LR mainly include envelope detection and OFDM-based detection. Envelope detection has lower power consumption but slightly worse RF performance, while OFDM-based detection has slightly higher power consumption but better RF performance. According to an embodiment of the present disclosure, an embodiment that enables network devices to flexibly configure power boosting includes: when in MR working state, the UE reports the terminal type or terminal capability, such as the UE reports support for OFDM detection, such as OFDM capability=support, when the UE enters the LR working state, the network device does not boost the power of low-power signals or boosts a smaller power, such as boosting 3dB. If the UE reports that it does not support OFDM detection, such as OFDMcapability=not support or does not report by default, when the UE enters the LR working state, the network device boosts the power of low-power signals or boosts a larger power, such as boosting 6dB.

[0540] Similarly, the RF indicators may also vary according to the UE type. For example, if the UE reports that the LR supports OFDM detection, for example, OFDM capability = support, then the terminal needs to meet better RF indicators, such as a better reference sensitivity REFSENS indicator value. Accordingly, the network equipment may not increase or less increase its low-power signal power to balance the RF performance of the terminal equipment; if the UE reports that it does not support OFDM detection, for example, OFDM capability = not support or does not report by default, then the terminal only needs to meet worse RF indicators, such as a worse reference sensitivity REFSENS indicator value. Accordingly, the network equipment may increase its low-power signal power more to balance the RF performance of the terminal equipment.

[0541] In summary, the embodiments of the present disclosure provide an overall flow chart of energy-saving RRM measurement using LR and MR collaboration, as shown in FIG. Figure 18 shown.

[0542] In step 18-1, a cell search is performed.

[0543] In steps 18-2 and 18-3, the UE obtains LR-related configurations through SIB(x) and accesses the LR. The UE can use the LR for measurement.

[0544] In step 18-4, the UE uses the LR to perform energy-saving serving cell / serving cell relaxation measurement and evaluation to perform cell selection. According to an exemplary embodiment, step 18-4 may include:

[0545] The UE uses LR to perform RRM measurements on the serving cell and filters the measurement results based on the LR-related measurement interval;

[0546] Determine the LR measurement bias based on a first parameter configured by the NW and / or a second parameter calculated by the UE and / or a third parameter determined by the UE RF implementation;

[0547] UE scales the LR-based measurement results to obtain similar results to MR;

[0548] UE determines the evaluation period T based on the LR-related relaxation factor and RF antenna switching factor servLR ;

[0549] In T servLR The UE uses the scaled measurement results to evaluate whether the cell is suitable for camping.

[0550] In step 18-5, according to the first or second suitability criterion, based on the LR measurement result, the UE wakes up the MR.

[0551] In step 18-6, after the MR wakes up, cell reselection is performed. According to an embodiment of the present disclosure, the LR OFDM-based receiver structure can be used to perform partial neighboring cell measurements. In addition, step 18-6 may include one of the following:

[0552] Case 1: The UE wakes up the MR and starts neighbor cell measurement. Since the MR is already awake at this time, cell reselection measurements can be performed based on the MR.

[0553] Case 2: MR and LR are both enabled, and the UE uses LR to perform partial neighbor cell measurements and relaxed serving cell measurements based on SSB (SSS), which may include:

[0554] n Combining the LR scaled measurement results and the MR measurement results, the UE performs neighbor sorting;

[0555] Based on the mixed neighbor cell ranking results, the UE automatically identifies and reselects the highest ranked cell.

[0556] Through the interaction between network equipment and user equipment, network equipment can flexibly configure power boosting, allowing user equipment to apply power boosting information to RRM measurement and judgment, thereby reliably performing MR RRM measurement and evaluation through LR, saving equipment power consumption and improving network coverage.

[0557] Figure 14 FIG. 1 is a block diagram of a user equipment UE or a network node in a network according to the present invention.

[0558] The node devices in the network can be used to implement the MN, SN, S-SN, T-SN, other candidate T-SNs, etc. in the present invention. Figure 14 , a UE or network node according to the present invention may include a transceiver 1410, a controller 1420, and a memory 1430. The transceiver 1410, the controller 1420, and the memory 1430 are configured to perform the operations of the methods and / or embodiments of the present invention. Although the transceiver 1410, the controller 1420, and the memory 1430 are shown as separate entities, they can be implemented as a single entity, such as a single chip. The transceiver 1410, the controller 1420, and the memory 1430 can be electrically connected or coupled to each other. The transceiver 1410 can be one or more transceivers with different performance and can send signals to and receive signals from other network nodes and / or UEs, such as base stations or core network nodes. The controller 1420 may include one or more processing units or processors and can control the network node to perform operations and / or functions according to one of the above embodiments. The memory 1430 can store instructions for implementing the operations and / or functions of one of the above embodiments.

[0559] Those skilled in the art will appreciate that the above illustrative embodiments are described herein and are not intended to be limiting. It should be understood that any two or more of the embodiments disclosed herein may be combined in any combination. In addition, other embodiments may be utilized and other changes may be made without departing from the spirit and scope of the subject matter presented herein. It will be readily understood that the various aspects of the invention of the present disclosure as generally described herein and shown in the accompanying drawings may be arranged, replaced, combined, separated, and designed in a variety of different configurations, all of which are contemplated herein.

[0560] Those skilled in the art will appreciate that the various illustrative logic blocks, modules, circuits, and steps described herein can be implemented as hardware, software, or a combination thereof. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above in the form of their functional sets. Whether such functional sets are implemented as hardware or software depends on specific applications and the design constraints imposed on the overall system. Technicians can implement the described functional sets in different ways for each specific application, but such design decisions should not be interpreted as causing departure from the scope of the present application.

Claims

1. A method performed by a user equipment (UE), wherein the UE comprises a first receiver and a second receiver, wherein the first receiver is a low power consumption receiver, the method comprising: The UE receives a first reference signal through a first receiver; performing cell measurement based on the first reference signal; Perform cell evaluation based on measurement results and parameters related to low power consumption; Based on the cell evaluation result, it is determined whether to trigger the second receiver to perform corresponding processing.

2. The method according to claim 1, wherein Performing cell measurement based on the first reference signal includes: Based on the first reference signal, measurements are performed on the serving cell and / or the neighboring cell in an idle state and / or an RRC inactive state.

3. The method according to claim 1, wherein Performing cell measurement based on the first reference signal includes: Obtaining configuration information related to cell measurement; determining, based on the first reference signal and configuration information related to cell measurement, signal reception power information and / or signal reception quality information corresponding to the first reference signal; The configuration information related to the cell measurement includes: at least one of the measurement timing configuration period based on the first reference signal, the period of the first reference signal, the power configuration of the first reference signal, the base station power boost gain, and the configuration parameters of the low power wake-up signal LP-WUS. The configuration parameters of the low power wake-up signal LP-WUS include at least one of: a paging indication, a WUS period, a UE group, a UE subgroup, a UE ID, and a system information indication.

4. According to the method of claim 1, the parameter related to low power consumption includes a first measurement bias, and the first measurement bias is related to at least one of the following: first parameter information configured by the network; second parameter information calculated by the UE; third parameter information related to the UE radio frequency implementation; and measurement margin.

5. The method according to claim 4, wherein The first parameter information is related to at least one of the following: power boost related configuration information; and / or The second parameter information is related to at least one of the following: a sensitivity difference between the first receiver and the second receiver; a difference in measurement results obtained by measuring using the first reference signal and the second reference signal; and / or The third parameter information is related to at least one of the following: antenna structures of the first receiver and the second receiver related to UE radio frequency implementation.

6. The method according to claim 1 or 4, performing cell evaluation based on the measurement results and parameters related to low power consumption, comprising: determining a first measurement bias based on the measurement result and a parameter related to low power consumption; The measurement result is scaled, and cell evaluation is performed based on the first measurement offset and the scaled measurement result.

7. The method according to claim 6, wherein: Scaling the measurement result, and performing cell evaluation based on the first measurement offset and the scaled measurement result, includes: Scaling the measurement result based on the first receiver structure related parameter and / or the first low power consumption correction parameter; The first measurement biases and scales the measurement result for cell evaluation.

8. The method according to claim 1, performing cell measurement based on the first reference signal, comprising: Determining, based on the first reference signal and configuration information related to cell measurement, a reference signal received power and / or a reference signal received quality measurement result corresponding to the first reference signal; The measurement results are filtered based on a measurement interval associated with the first receiver.

9. The method according to claim 8, wherein The measurement interval is related to at least one of the following parameters: a measurement timing configuration period of the first reference signal in the configuration information related to cell measurement, a measurement period of the first reference signal, and a discontinuous reception (DRX) period.

10. The method according to claim 3, wherein: The measurement timing configuration period based on the first reference signal is greater than a maximum value of the measurement timing configuration period based on the second reference signal, wherein the second reference signal is received by the second receiver.

11. The method according to claim 1, wherein performing cell evaluation comprises: Determine the cell evaluation granularity number and / or period based on at least one of a relaxation factor associated with the first receiver, a radio frequency antenna switching factor, an evaluation granularity, a DRX cycle relaxation ratio, and a frequency-related scaling factor, Determining whether a cell evaluation criterion is met based on the measurement result, cell evaluation-related configuration information including low-power consumption-related parameters, and the number and / or period of cell evaluation granularity; Determining whether to trigger the second receiver to perform corresponding processing based on the cell evaluation result includes: If the cell evaluation criteria are met, the second receiver is triggered to perform cell reselection or cell selection.

12. The method according to claim 1, wherein The configuration information related to cell evaluation further includes: at least one of a period of a low power consumption wake-up signal LP-WUS, a discontinuous reception DRX period, a low power consumption period length, and a measurement timing period of a first reference signal.

13. The method according to claim 11, wherein The evaluation granularity includes a first evaluation granularity associated with the first receiver and a second evaluation granularity associated with the second receiver, The first evaluation granularity is determined by: A first evaluation granularity related to the first receiver is determined based on at least one of a period of the first reference signal, a DRX period, and a measurement timing configuration period of the first reference signal in the configuration information related to the cell evaluation.

14. The method according to claim 11, wherein The cell evaluation criteria are related to at least one of the following: Cell selection evaluation criteria threshold, cell selection reception level value, cell quality value, The cell selection evaluation criterion threshold is a first threshold related to the first receiver, or a second threshold related to the second receiver.

15. The method according to claim 1, wherein Conduct community assessments, including: determining, based on the measurement result and the parameter related to low power consumption, whether a condition for triggering the second receiver is met; If the conditions are met, the second receiver is woken up and neighbor cell measurement and / or serving cell measurement is triggered.

16. The method according to claim 1, wherein Performing cell measurement based on the first reference signal includes: The serving cell is measured based on the first reference signal, and if the neighboring cell supports the low power consumption feature, the neighboring cell is measured based on the first reference signal.

17. The method according to claim 1, wherein Also includes: If the UE supports orthogonal frequency division multiplexing (OFDM) low power reception capability, the first receiver and the second receiver are triggered to measure the serving cell and the neighboring cell based on the second reference signal.

18. The method according to claim 17, wherein Measuring a neighboring cell based on the second reference signal includes: For a first receiver supporting OFDM low power reception capability, based on the number of beams corresponding to the second reference signal that the first receiver needs to measure as indicated by the first receiver; Perform neighboring cell RRM relaxation measurement based on the second reference signal received by the first receiver.

19. The method according to claim 16 or 17, wherein: Also includes: Scaling a measurement result of a neighboring cell of the first receiver, and processing the scaled measurement result based on a second measurement offset; sorting the processed measurement results and the neighboring cell measurement results of the second receiver; According to the ranking results, reselect to the highest ranked cell.

20. A method performed by a network node, the method comprising: Sending a low-power wake-up signal to the UE; Determine the number of successful wake-up times of the UE; After completing the preset number of low-power wake-up signal transmissions, the UE measurement result is determined according to the total number of cumulative transmissions and the number of successful wake-up times of the UE.

21. A method performed by a user equipment (UE), the UE comprising a first receiver and a second receiver, wherein the first receiver is a low power consumption receiver, the method comprising: The second receiver receives a message for entering, activating, exiting or deactivating a test mode sent by the network node, and sends a response message to the network node. The test mode indicates a specific behavior of the first receiver of the UE after receiving a low-power wake-up signal.

22. A method performed by a network node, the method comprising: Sending a first reference signal to a UE, so that the UE performs cell measurement based on the first reference signal, the UE includes a first receiver and a second receiver, wherein the first receiver is a low-power receiver, and the first reference signal is received by the first receiver; Evaluation related information related to the first receiver is sent to the UE, so that the UE performs cell evaluation based on the measurement result, the parameter related to low power consumption and the evaluation related information, and determines whether to trigger the second receiver to perform corresponding processing based on the cell evaluation result.

23. A method performed by a network node, comprising: obtaining first information about a power boost of a reference signal; sending second information about power boosting of a reference signal to a user equipment UE, The second information about the power boost of the reference signal includes at least one of the following: whether to boost power of a reference signal received by a first receiver of the UE, where the first receiver is a low-power receiver; whether to boost the power of a reference signal received by a second receiver of the UE; a power boost value of a reference signal received by the first receiver; a power boost value of a reference signal received by a second receiver; A difference between a power boost value of the reference signal received by the second receiver and a power boost value of the reference signal received by the first receiver.

24. A method performed by a user equipment (UE), comprising: Sending first information about power boosting of a reference signal to a network node; receiving second information about power boosting of the reference signal from the network node, The second information about the power boost of the reference signal includes at least one of the following: whether to boost power of a reference signal received by a first receiver of the UE, where the first receiver is a low-power receiver; whether to boost the power of a reference signal received by a second receiver of the UE; a power boost value of a reference signal received by the first receiver; a power boost value of a reference signal received by a second receiver; A difference between a power boost value of the reference signal received by the second receiver and a power boost value of the reference signal received by the first receiver.

25. A method performed by a user equipment (UE), the UE comprising a first receiver and a second receiver, wherein the first receiver is a low power consumption receiver, the method comprising: Using at least one of the multiple radio frequency front-end links of the UE, receiving a reference signal through a second receiver; In the case where radio resource management is offloaded to the first receiver, at least one of the multiple RF front-end links is used based on the switching to receive a reference signal through the first receiver.

26. A user equipment (UE), comprising: at least one transceiver configured to receive and transmit signals; At least one processor is coupled to the at least one transceiver and is configured to perform the method of any one of claims 1-19, 21, 24-25.

27. A network node comprising: at least one transceiver configured to receive and transmit signals; At least one processor is coupled to the at least one transceiver and is configured to perform the method of any one of claims 20, 22-23.

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