WO2023046190A1

WO2023046190A1 - Communication method and communication apparatus

Info

Publication number: WO2023046190A1
Application number: PCT/CN2022/121557
Authority: WO
Inventors: 黄甦
Original assignee: 华为技术有限公司
Priority date: 2021-09-27
Filing date: 2022-09-27
Publication date: 2023-03-30
Also published as: CN115884325A

Abstract

The present application provides a communication method and apparatus, used for reducing the power consumption of a terminal device, increasing endurance time, and improving user experience. In the method, the terminal device receives first configuration information from a network device, the first configuration information being used for configuring at least one downlink reference signal set; the terminal device receives, on the basis of the first configuration information, the at least one downlink reference signal set; the terminal device performs measurement on the basis of the at least one downlink reference signal set to obtain a first measurement value; and when the first measurement value is greater than a first threshold value, the terminal device determines to skip RRM measurement.

Description

A communication method and communication device

This application claims the priority of the Chinese patent application filed with the State Intellectual Property Office of China on September 27, 2021, with the application number 202111136894.3, and the title of the invention is "a communication method and communication device", the entire contents of which are incorporated herein by reference. Applying.

technical field

The present application relates to the field of wireless technologies, and in particular to a communication method and a communication device.

Background technique

With the development of positioning technology, in order to reduce the power consumption of terminal equipment during the positioning process and improve the battery life of terminal equipment, the realization of low power consumption positioning has become a hot topic of current research. In some possible implementations, the terminal device can perform positioning in a low power consumption mode to achieve low power consumption positioning.

At present, in the process of realizing low-power positioning, the terminal device needs to receive the downlink reference signal from the network device in the low-power mode based on the configuration information of the downlink reference signal (hereinafter referred to as the downlink reference signal) used for positioning to obtain Time-frequency synchronization. After obtaining time-frequency synchronization, the terminal device sends an uplink reference signal for positioning (hereinafter referred to as the uplink reference signal) to the network device in the low power consumption mode, so that the network device measures the uplink reference signal to determine the position of the terminal device, and realizes positioning. The location of the end device.

Generally, the configuration information of the downlink reference signal in different cells may be different, and the terminal device may reselect a cell, so that the configuration information of the downlink reference signal needs to be updated. In order to avoid the failure of obtaining time-frequency synchronization due to the poor signal quality of the downlink reference signal received by the terminal device, before the terminal device receives the downlink reference signal based on the configuration information of the downlink reference signal, the terminal device needs to be based on radio resource management (radio resource management, RRM) measurement determines the configuration information of the downlink reference signal of the cell where the cell resides, and then receives the downlink reference signal based on the configuration information of the downlink reference signal of the cell where the cell resides to obtain time-frequency synchronization.

However, in the implementation process of the above-mentioned low-power positioning, the terminal device needs to exit the low-power mode to obtain time-frequency synchronization based on RRM measurement, resulting in high power consumption of the terminal device and affecting user experience.

Contents of the invention

The present application provides a communication method and device, which are used to reduce power consumption of terminal equipment, increase battery life, and improve user experience.

The first aspect of the present application provides a communication method, the method is executed by a terminal device, or the method is executed by some components in the terminal device (such as a processor, a chip, or a chip system, etc.), or the method can also be executed by A logic module or software implementation that can realize all or part of the functions of the terminal equipment. In the first aspect and possible implementation manners thereof, description is made by taking the method executed by a terminal device as an example. In this method, the terminal device receives first configuration information from the network device, where the first configuration information is used to configure at least one downlink reference signal set; the terminal device receives the at least one downlink reference signal set based on the first configuration information; The terminal device performs measurement based on the at least one set of downlink reference signals to obtain a first measurement value; when the first measurement value is greater than a first threshold, the terminal device determines to skip RRM measurement.

It should be noted that the terminal device determines to skip the RRM measurement, which can be expressed as that the terminal device skips the RRM measurement; it can also be expressed as that the terminal device is allowed to skip the RRM measurement; it can also be expressed as that the terminal device is allowed to skip the RRM measurement. measurement; it can also be expressed as that the terminal device is allowed not to perform RRM measurement; it can also be expressed as that the terminal device does not need to perform RRM measurement; it can also be expressed as that the terminal device does not need to perform RRM measurement; it can also be expressed as that the terminal device determines that it does not Perform RRM measurement; it may also be expressed as that the terminal device does not perform RRM measurement; it may also be expressed as that the terminal device is allowed not to perform RRM measurement.

Optionally, the network device sending the first configuration information and the network device sending the at least one downlink reference signal set may be the same network device, or may be different network devices.

Based on the above technical solution, in the first configuration information received by the terminal device from the network device, at least one downlink reference signal set configured in the first configuration information is used for one or more cells. Wherein, when the first measurement value corresponding to the at least one downlink reference signal set is greater than the first threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is relatively good, so that the terminal device can determine the camping of the terminal device A cell is located within the one or more cells. In other words, based on the at least one downlink reference signal set, the terminal device can obtain time-frequency synchronization in the cell where it resides, so that the terminal device determines to skip the RRM measurement. Therefore, when the first measurement value corresponding to at least one downlink reference signal set is greater than the first threshold, since the terminal device can obtain time-frequency synchronization without exiting the low power consumption mode to perform RRM measurement, the power consumption of the terminal device can be reduced and increased. Long battery life improves user experience.

The second aspect of the present application provides a communication method, the method is executed by a terminal device, or the method is executed by some components in the terminal device (such as a processor, a chip, or a chip system, etc.), or the method can also be executed by A logic module or software implementation that can realize all or part of the functions of the terminal equipment. In the second aspect and possible implementation manners thereof, description is made by taking the method executed by a terminal device as an example. In this method, the terminal device receives first configuration information from the network device, where the first configuration information is used to configure a first downlink reference signal set; the terminal device receives the at least one downlink reference signal set based on the first configuration information The terminal device performs measurement based on the at least one downlink reference signal set to obtain a first measurement value; the terminal device determines whether the SRS corresponding to the at least one downlink reference signal set is valid based on the first measurement value.

It should be noted that, the terminal device determining whether the SRS corresponding to the at least one downlink reference signal set is valid based on the first measurement value may specifically include: when the first measurement value is greater than a second threshold, the terminal device determines the at least one downlink reference signal set Whether the SRS corresponding to the signal set is valid, that is, the terminal device can send the SRS corresponding to the at least one downlink reference signal set, so that the network device can locate the terminal device based on the SRS; when the first measurement value is less than the second threshold, the terminal The device determines that the SRS corresponding to the at least one downlink reference signal set is invalid, that is, the terminal device does not send the SRS corresponding to the at least one downlink reference signal set, and the terminal device requests the network device to update SRS configuration information (for example, the SRS configuration information may include the following The second configuration information or the third configuration information in the foregoing implementation manner) to send the SRS.

In addition, the terminal device determines whether the SRS corresponding to the at least one downlink reference signal set is valid based on the first measurement value, which can be expressed as, the terminal device determines whether the SRS corresponding to the at least one downlink reference signal set is available based on the first measurement value; It can also be expressed as, the terminal device determines whether to send the SRS corresponding to at least one downlink reference signal set based on the first measurement value; it can also be expressed as, the terminal device determines whether to stop sending the at least one downlink reference signal based on the first measurement value Set the corresponding SRS.

Based on the above technical solution, in the first configuration information received by the terminal device from the network device, at least one downlink reference signal set configured in the first configuration information is used for one or more cells. Wherein, the terminal device may determine whether the SRS corresponding to the at least one downlink reference signal set is valid based on the first measurement value corresponding to the at least one downlink reference signal set. Wherein, when the terminal device determines that the SRS corresponding to the at least one downlink reference signal set is valid based on the first measurement value corresponding to the at least one downlink reference signal set, the terminal device determines that the signal quality of the at least one downlink reference signal set is relatively good, so that The terminal device may send the SRS corresponding to the at least one downlink reference signal set without requesting the network device to update the SRS configuration information. Therefore, since the terminal device does not need to exit the low power consumption mode to request the network device to update the SRS configuration information, it can send SRS to realize low power consumption positioning, so that the power consumption of the terminal device can be reduced, the battery life can be increased, and the user experience can be improved.

In a possible implementation manner of the first aspect or the second aspect of the present application, the at least one downlink reference signal set includes one downlink reference signal set. In other words, the number of downlink references included in at least one downlink reference signal set is one.

Optionally, when the number of downlink references contained in at least one downlink reference signal set is 1, when the downlink reference signal is a TRS, one downlink reference signal set includes one or more CSI-RS resource sets configured as TRS Corresponding TRS.

In a possible implementation manner of the first aspect or the second aspect of the present application, the method further includes: the terminal device receiving second configuration information from the network device, where the second configuration information is used to configure the A first sounding reference signal SRS of a downlink reference signal set; when the first measurement value is greater than a second threshold, the terminal device sends the first SRS based on the second configuration information.

Optionally, when the first measurement value is equal to the second threshold, the terminal device determines that the first SRS corresponding to the at least one downlink reference signal set is valid.

Optionally, when the first measurement value is equal to the second threshold, the terminal device sends the first SRS based on the second configuration information.

Based on the above technical solution, the terminal device may also receive second configuration information from the network device, wherein the SRS sent by the terminal device based on the second configuration information may be used by the network device to locate the terminal device. When the first measurement value is greater than the second threshold, the terminal device determines that the first SRS corresponding to the at least one downlink reference signal set is valid, so that the terminal device sends the first SRS based on the second configuration information. Therefore, since the terminal device does not need to exit the low power consumption mode to request the network device to update the SRS configuration information, it can send SRS to realize low power consumption positioning, so that the power consumption of the terminal device can be reduced, the battery life can be increased, and the user experience can be improved.

In a possible implementation manner of the first aspect or the second aspect of the present application, the method further includes: when the first measurement value is smaller than the second threshold, the terminal device stops sending the first SRS.

It should be noted that, in this embodiment and subsequent embodiments, the "second threshold" used to determine that the terminal device sends the first SRS and the "second threshold" used to determine that the terminal device stops sending the first SRS may be the same may also be different (for example, the "second threshold" used to determine that the terminal device sends the first SRS is greater than the "second threshold" used to determine that the terminal device stops sending the first SRS).

Optionally, when the first measurement value is equal to the second threshold, the terminal device determines that the first SRS corresponding to the at least one downlink reference signal set is invalid.

Optionally, when the first measurement value is equal to the second threshold, the terminal device stops sending the first SRS.

Based on the above technical solution, when the first measurement value is less than the second threshold, the terminal device determines that the first SRS corresponding to the at least one downlink reference signal set is invalid, so that the terminal device stops sending the first SRS. In other words, when the first measurement value is less than the second threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is poor, and the terminal device needs to request the network device to update SRS configuration information to send SRS.

In a possible implementation manner of the first aspect or the second aspect of the present application, the at least one downlink reference signal set includes n downlink reference signal sets, where n is an integer greater than 1. In other words, the number of downlink references included in at least one downlink reference signal set is multiple (that is, n).

In a possible implementation manner of the first aspect or the second aspect of the present application, the method further includes: the terminal device receives third configuration information from the network device, the third configuration information is used to configure the q SRSs of the downlink reference signal set, where q is less than or equal to n; when the first measurement value is greater than the second threshold, the terminal device sends the target SRS based on the third configuration information, where the target SRS is one of the q SRSs Associated with the SRS of the downlink reference signal set corresponding to the first measurement value in the n downlink reference signal sets.

Optionally, when the first measurement value is equal to the second threshold, the terminal device determines that the target SRS is valid.

Optionally, when the first measurement value is equal to the second threshold, the terminal device sends the target SRS based on the third configuration information.

Based on the above technical solution, the terminal device may also receive third configuration information from the network device, wherein the SRS sent by the terminal device based on the third configuration information may be used by the network device to locate the terminal device. When the first measurement value is greater than the second threshold, the terminal device determines that the SRS (i.e., the target SRS) associated with the downlink reference signal set corresponding to the first measurement value in the n downlink reference signal sets among the q SRSs is valid, so that The terminal device sends the target SRS based on the third configuration information. Therefore, since the terminal device does not need to exit the low power consumption mode to request the network device to update the third configuration information, it can send SRS to realize low power consumption positioning, so that the power consumption of the terminal device can be reduced, the battery life can be increased, and the user experience can be improved.

In a possible implementation manner of the first aspect or the second aspect of the present application, the method further includes: when the first measurement value is smaller than the second threshold, the terminal device stops sending the target SRS.

It should be noted that, in this embodiment and subsequent embodiments, the "second threshold" used to determine that the terminal device sends the target SRS and the "second threshold" used to determine that the terminal device stops sending the target SRS may be the same, It may also be different (for example, the "second threshold" used to determine that the terminal device sends the target SRS is greater than the "second threshold" used to determine that the terminal device stops sending the target SRS).

Optionally, when the first measurement value is equal to the second threshold, the terminal device determines that the target SRS is invalid.

Optionally, when the first measurement value is equal to the second threshold, the terminal device stops sending the target SRS.

Based on the above technical solution, when the first measurement value is smaller than the second threshold, the terminal device determines that the target SRS is invalid, so that the terminal device stops sending the target SRS. In other words, when the first measurement value is less than the second threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is poor, and the terminal device needs to request the network device to update the third configuration information to send the SRS.

In a possible implementation manner of the first aspect or the second aspect of the present application, the number q of SRSs configured in the third configuration information may include various implementation manners, including:

q is 1; or,

q is equal to n, where q SRSs correspond to n downlink reference signal sets one-to-one; or,

q is greater than 1 and q is less than n, where each SRS included in the q SRSs corresponds to one or more downlink reference signal sets in the n downlink reference signal sets.

In a possible implementation manner of the first aspect or the second aspect of the present application, the second threshold is smaller than the first threshold.

Based on the above technical solution, the second threshold may be smaller than the first threshold. Wherein, when the first measurement value is greater than the first threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is good, so that the terminal device does not need to perform RRM and can send the first SRS, so that the network device locates the terminal device based on the first SRS. When the first measurement value is less than the first threshold and greater than the second threshold, the terminal device determines that the signal quality of the at least one set of downlink reference signals is average, so that the terminal device performs RRM and can send the first set of downlink reference signals corresponding to the at least one set of downlink reference signals An SRS, so that the network device locates the terminal device based on the first SRS. When the first measurement value is less than the second threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is poor, so that the terminal device performs RRM so that the network device determines the cell to camp on, and needs to request the network device to update the SRS Configure information (for example, the SRS configuration information may include the second configuration information or the third configuration information in the foregoing implementation manners) to send the SRS.

Optionally, the second threshold is greater than or equal to the first threshold.

In a possible implementation manner of the first aspect or the second aspect of the present application, the number of downlink reference signal sets included in the at least one downlink reference signal set is one.

In a possible implementation manner of the first aspect or the second aspect of the present application, the at least one downlink reference signal set includes n downlink reference signal sets, where n is an integer greater than 1.

Optionally, when the number of downlink references contained in at least one downlink reference signal set is n, when the downlink reference signal is a TRS, any downlink reference signal set in the n downlink reference signal sets includes one or more configurations The TRS corresponding to the CSI-RS resource set of the TRS.

Optionally, when the number of downlink reference signal sets included in the at least one downlink reference signal set is n, the SRSs corresponding to any two downlink reference signal sets in the n downlink reference signal sets may be the same or different , without limitation here.

Based on the above technical solution, at least one set of downlink reference signals is used for one or more cells, and when the terminal device resides in the one or more cells, the terminal device may base on one or more downlink reference signal set to achieve time-frequency synchronization.

Optionally, when at least one downlink reference signal set is used for multiple cells, the multiple downlink reference signal sets delivered by the multiple cells may be the same or different.

In a possible implementation of the first aspect or the second aspect of the present application, the at least one downlink reference signal set includes a primary reference signal set and a secondary reference signal set, where the number of reference signals contained in the secondary reference signal set is is n-1; the terminal device performs measurement based on the at least one downlink reference signal set, and obtaining the first measurement value includes: the terminal device measures the primary reference signal set to obtain a second measurement value; A second measurement determines the first measurement.

Optionally, the number of reference signals included in the primary reference signal set is 1.

Optionally, the terminal device may preferentially measure any one downlink reference signal set (for example, the primary reference signal set) in the n downlink reference signal sets.

Based on the above technical solution, when at least one downlink reference signal set includes n downlink reference signal sets, the n downlink reference signal sets include one primary reference signal set and one or more secondary reference signal sets. Wherein, during the process of measuring the n downlink reference signal sets, the terminal device may preferentially measure the primary reference signal set, so as to obtain the second measurement value, and then determine the first Measurements.

In some designs, the primary reference signal set is at least applied to the primary cell where the network device sending the first configuration information is located. Optionally, the primary reference signal set may also be applied to neighboring cells of the primary cell.

In some designs, the primary reference signal set is at least applied to the serving cell of the terminal device in the connected state last time before the terminal device receives at least one downlink reference signal set based on the first configuration information; optionally, The primary reference signal set is also applied to neighboring cells of the serving cell, or the primary reference signal set is also applied to coordinated cells of the serving cell.

In a possible implementation manner of the first aspect or the second aspect of the present application, the terminal device determining the first measurement value based on the second measurement value includes: when the second measurement value is greater than a third threshold, the terminal device The second measurement value is determined as the first measurement value; the terminal device determines to skip the measurement of the secondary reference signal set.

Based on the above technical solution, in the process of measuring the n downlink reference signal sets, the terminal device can preferentially measure the primary reference signal set, and when the second measurement value corresponding to the primary reference signal set is greater than the third threshold, the terminal The device determines the second measurement value corresponding to the primary reference signal set as the first measurement value. In other words, when the second measurement value corresponding to the primary reference signal set is greater than the third threshold, the terminal device determines that the cell where the terminal device is camped on is located in one or more cells corresponding to the primary reference signal set. Thereafter, the terminal device does not need to measure other reference signals (ie, secondary reference signal sets) in the n downlink reference signal sets except the primary reference signal set, which can further save power consumption of the terminal device.

In a possible implementation manner of the first aspect or the second aspect of the present application, the terminal device determining the first measurement value based on the second measurement value includes: when the second measurement value is less than a third threshold, the terminal device performing measurement on the secondary reference signal set to obtain a third measurement value, where the number of measurement values included in the third measurement value is p, where p is an integer greater than 0 and less than or equal to n-1; the terminal device is based on The second measured value and the third measured value determine the first measured value.

Optionally, the terminal device measures the secondary reference signal set to obtain a third measurement value, which can be expressed as, the terminal device measures one or more reference signals included in the secondary reference signal set to obtain the first Three measurements.

Based on the above technical solution, in the process of measuring the n downlink reference signal sets, the terminal device can preferentially measure the primary reference signal set, and when the second measurement value corresponding to the primary reference signal set is less than the third threshold, the The terminal device determines the first measurement value based on the second measurement value and the third measurement value corresponding to the (at least one) secondary reference signal set. So that when the second measurement value corresponding to the primary reference signal set is smaller than the third threshold, the terminal device may determine the first measurement value based on the third measurement value corresponding to the secondary reference signal set, and when the third measurement value is smaller than the third threshold In a large case, it is possible to make the terminal device skip RRM measurement, thereby reducing the power consumption of the terminal device.

In a possible implementation manner of the first aspect or the second aspect of the present application, the terminal device determining the first measurement value based on the second measurement value and the third measurement value includes: the terminal device taking the third measurement value greater than The measured value of the third threshold is determined as the first measured value; the terminal device updates the secondary reference signal set corresponding to the measured value greater than the third threshold in the third measured value to the primary reference signal set.

Based on the above technical solution, in the process of measuring the n downlink reference signal sets, the terminal device can preferentially measure the primary reference signal set, and when the first measurement value of the primary reference signal set is less than the third threshold, the terminal device A third measurement value corresponding to a secondary reference signal set corresponding to a measurement value greater than a third threshold in the secondary reference signal set is determined as the first measurement value. In other words, when the first measurement value of the primary reference signal set is less than the third threshold and a certain reference signal in the secondary reference signal set is greater than the third threshold, the terminal device determines that the cell where the terminal device is camped on is located in the secondary reference signal set corresponding to one or more cells. Thereafter, the terminal device updates the first reference signal to the primary reference signal set, so as to implement a low power consumption positioning process based on the updated primary reference signal set.

In a possible implementation manner of the first aspect or the second aspect of the present application, the terminal device determining the first measurement value based on the second measurement value and the third measurement value includes:

The terminal device determines that the first measurement value is the maximum value of the second measurement value and the third measurement value; or,

The terminal device determines that the first measurement value is an average value of the second measurement value and the third measurement value; or,

The terminal device determines that the first measurement value is an average value of m measurement values among the second measurement value and the third measurement value, and the m measurement values are all greater than a fourth threshold, and m is an integer smaller than n; or

The terminal device determines that the first measurement value is a maximum value of k measurement values among the second measurement value and the third measurement value, where k is an integer smaller than n.

In a possible implementation manner of the first aspect or the second aspect of the present application,

The at least one downlink reference signal set includes a primary reference signal set, the first measurement value is a second measurement value corresponding to the primary reference signal set, and the second measurement value corresponding to the primary reference signal set is greater than a third threshold; or,

The at least one downlink reference signal set corresponds to n first measurement values, and the first measurement value is the maximum value among the n first measurement values; or,

The at least one downlink reference signal set corresponds to n first measurement values, and the first measurement value is an average value of the n first measurement values; or,

Part of the reference signals in the at least one downlink reference signal set correspond to m first measured values, the m first measured values are all greater than the third threshold, and the first measured value is an average value of the m first measured values, wherein , m is an integer less than n; or,

Part of the reference signals in the at least one downlink reference signal set corresponds to k first measurement values, and the first measurement value is a maximum value among the k first measurement values, where k is an integer smaller than n.

Based on the above technical solution, in the process of measuring the n downlink reference signal sets, the terminal device can realize the determination of the first measurement value through the above-mentioned various methods, and improve the flexibility of the implementation of the solution.

In a possible implementation manner of the first aspect or the second aspect of the present application, the method further includes: when the first measurement value is smaller than the first threshold, the terminal device performs the RRM measurement.

It should be noted that, in this embodiment and subsequent embodiments, the "first threshold" used to determine that the terminal device skips RRM measurement and the "first threshold" used to determine that the terminal device performs RRM measurement may be the same, It can also be different (for example, the "first threshold" for determining that the terminal device skips RRM measurement is greater than the "first threshold" for determining that the terminal device performs RRM measurement).

Optionally, when the first measurement value is equal to the first threshold, the terminal device skips RRM measurement.

Optionally, when the first measurement value is equal to the first threshold, the terminal device performs the RRM measurement.

Based on the above technical solution, in the first configuration information received by the terminal device from the network device, at least one downlink reference signal set configured in the first configuration information is used for one or more cells. Wherein, when the first measurement value corresponding to the at least one set of downlink reference signals is smaller than the first threshold, the terminal device determines that the signal quality of the at least one set of downlink reference signals is poor, so that the terminal device can determine the camping of the terminal device The cells are located in other cells than the one or more cells. In other words, the terminal device may not be able to obtain time-frequency synchronization in the cell where it resides based on the at least one downlink reference signal set, so that the terminal device needs to perform RRM measurement and obtain time-frequency synchronization in the cell where it resides.

In a possible implementation manner of the first aspect or the second aspect of the present application, the first configuration information is carried in system information; or, the first configuration information is carried in a radio resource control release (radio resource control release, RRCRelease) information.

Optionally, the first configuration information and the second configuration information (or third configuration information) are carried in the same message.

Optionally, the first configuration information and the second configuration information (or third configuration information) are carried in different messages.

In a possible implementation of the first aspect or the second aspect of the present application, the downlink reference signal included in the downlink reference signal set is a channel state information reference signal (channel state information reference signal, CSI-RS); or, the The downlink reference signal included in the downlink reference signal set is a tracking reference signal (tracking reference signal, TRS).

Optionally, the downlink reference signal included in the downlink reference signal set is a special CSI-RS, which is mainly used to realize high-precision downlink time-frequency tracking.

In a possible implementation manner of the first aspect or the second aspect of the present application, the third threshold is greater than the first threshold.

Based on the above technical solution, the third threshold may be greater than the first threshold, so that the terminal device tries to perform measurement of at least one downlink reference signal set to obtain time-frequency synchronization without performing RRM measurement.

Optionally, the third threshold is less than or equal to the first threshold.

Optionally, the third threshold is greater than the second threshold.

Based on the above technical solution, the second threshold may be greater than the third threshold, so that the terminal device tries to perform at least one downlink reference signal set measurement to send the SRS without performing the process of requesting the network device to update the SRS configuration information.

In a possible implementation manner of the first aspect or the second aspect of the present application, the first measurement value includes reference signal received power (reference signal received power, RSRP) and reference signal received quality (reference signal received quality, RSRQ) At least one of the .

Optionally, the first measured value is RSRP.

In a possible implementation manner of the first aspect or the second aspect of the present application, the terminal device determining to skip the RRM measurement includes: the terminal device determining to skip the RRM measurement based on first information, where the first information is used to Indicates that the terminal device is not allowed to determine whether to perform intra-frequency cell measurement based on the measurement results of the synchronization signal block (or called synchronization signal/PBCH block, SS/PBCH block or SSB) of the serving cell.

In a possible implementation manner of the first aspect or the second aspect of the present application, the first information is also used to indicate that the terminal device is not allowed to use different frequencies or different radio access technology (radio access technology, RAT) priority Determine whether to perform inter-frequency and inter-RAT measurement based on the SSB first measurement value of the level and the serving cell.

Optionally, the first information is preconfigured on the terminal device.

Optionally, the method further includes: the terminal device receiving the first information sent from the network device.

Based on the foregoing technical solution, when the first measurement value is greater than the first threshold, the terminal device may determine to skip the RRM measurement based on the first information. Wherein, the RRM measurement skipped by the terminal device based on the first information may specifically be: during the cell reselection process, the terminal device measures the current serving cell and neighboring cells (including cells of the same frequency, different frequency, and different RAT) process.

In a possible implementation manner of the first aspect or the second aspect of the present application, the RRM measurement includes at least one of intra-frequency cell measurement, inter-frequency cell measurement, and inter-RAT measurement.

Optionally, the RRM measurement may be described as intra-frequency cell measurement, inter-frequency cell measurement, and inter-RAT measurement.

Optionally, the RRM measurement may be expressed as intra-frequency cell measurement.

In a possible implementation manner of the first aspect or the second aspect of the present application, the first configuration information includes at least one of the following:

CSI-RS resource configuration information; or,

CSI-RS resource set configuration information configured as TRS; or,

CSI resource configuration information of the CSI-RS resource set configured as TRS.

Optionally, the at least one piece of configuration information is in one-to-one correspondence with the at least one set of downlink reference signals.

Optionally, each configuration information in the at least one configuration information corresponds to multiple downlink reference signal sets in the at least one downlink reference signal set.

In a possible implementation manner of the first aspect or the second aspect of the present application, the first configuration information includes at least one piece of configuration information;

Wherein, each configuration information in at least one configuration information includes at least one of the following:

CSI-RS resource configuration information; or,

CSI-RS resource set configuration information configured as TRS; or,

A third aspect of the present application provides a communications device, which can implement the method in the first aspect or any possible implementation manner of the first aspect. The apparatus includes corresponding units or modules for performing the above method. The units or modules included in the device can be realized by software and/or hardware. For example, the device may be a terminal device, or the device may be a component in the terminal device (such as a processor, a chip, or a chip system, etc.), or the device may also be a logic module capable of realizing all or part of the functions of the terminal device or software.

Wherein, the device includes a transceiver unit and a processing unit;

The transceiving unit is configured to receive first configuration information from a network device, where the first configuration information is used to configure at least one set of downlink reference signals;

The transceiving unit is further configured to receive the at least one downlink reference signal set based on the first configuration information;

The processing unit is configured to perform measurement based on the at least one downlink reference signal set to obtain a first measurement value;

When the first measurement value is greater than the first threshold, the processing unit is further configured to determine to skip radio resource management RRM measurement.

A fourth aspect of the present application provides a communication device, which can implement the method in the second aspect or any possible implementation manner of the second aspect. The apparatus includes corresponding units or modules for performing the above method. The units or modules included in the device can be realized by software and/or hardware. For example, the device may be a terminal device, or the device may be a component in the terminal device (such as a processor, a chip, or a chip system, etc.), or the device may also be a logic module capable of realizing all or part of the functions of the terminal device or software.

Wherein, the device includes a transceiver unit and a processing unit;

The transceiver unit is configured to receive first configuration information from a network device, where the first configuration information is used to configure a first set of downlink reference signals;

The processing unit is configured to receive the at least one downlink reference signal set based on the first configuration information; the terminal device performs measurement based on the at least one downlink reference signal set to obtain a first measurement value;

The processing unit is configured to determine whether the SRS corresponding to the at least one downlink reference signal set is valid based on the first measurement value.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the at least one downlink reference signal set includes one downlink reference signal set. In other words, the number of downlink references included in at least one downlink reference signal set is one.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the transceiver unit is further configured to receive second configuration information of the sounding reference signal from the network device, where the second configuration information is used to configure the first SRS; the first SRS is associated with the at least one downlink reference signal set;

When the first measured value is greater than the second threshold, the transceiver unit is further configured to send the first SRS based on the second configuration information.

In a possible implementation manner of the third aspect or the fourth aspect of the present application,

When the first measured value is less than the second threshold, the processing unit is further configured to stop sending the first SRS.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the at least one downlink reference signal set includes n downlink reference signal sets, where n is an integer greater than 1. In other words, the number of downlink references included in at least one downlink reference signal set is multiple (that is, n).

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the transceiver unit is further configured to receive third configuration information from the network device, where the third configuration information is used to configure q SRSs of the signal set, where q is less than or equal to n; when the first measured value is greater than the second threshold, the transceiver unit is further configured to send a target SRS based on the third configuration information, where the target SRS is q SRSs is associated with the SRS of the downlink reference signal set corresponding to the first measurement value in the n downlink reference signal sets.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the processing unit is further configured to: when the first measurement value is smaller than the second threshold, the terminal device stops sending the target SRS.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the number q of SRSs configured in the third configuration information may include various implementation manners, including:

q is 1; or,

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the second threshold is smaller than the first threshold.

When the first measurement value is less than the first threshold, the processing unit is further configured to perform the RRM measurement.

The first configuration information is carried in system information; or,

The first configuration information is carried in a radio resource control release RRCRelease message.

The downlink reference signal contained in the downlink reference signal set is a channel state information reference signal CSI-RS; or,

The downlink reference signal included in the downlink reference signal set is the tracking reference signal TRS.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the number of downlink reference signal sets included in the at least one downlink reference signal set is one.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the at least one downlink reference signal set includes n downlink reference signal sets, where n is an integer greater than 1.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the at least one downlink reference signal set includes a primary reference signal set and a secondary reference signal set, where the number of reference signals contained in the secondary reference signal set is for n-1;

The processing unit is configured to perform measurement based on the at least one downlink reference signal set, and obtaining the first measurement value includes:

The processing unit is configured to measure the main reference signal set to obtain a second measurement value;

The processing unit is used for determining the first measurement value based on the second measurement value.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the processing unit being configured to determine the first measurement value based on the second measurement value includes:

When the second measured value is greater than a third threshold, the processing unit is configured to determine the second measured value as the first measured value;

The processing unit is configured to determine to skip the measurement of the secondary reference signal set.

When the second measurement value is less than the third threshold, the processing unit is configured to measure the secondary reference signal set to obtain a third measurement value, where the number of measurement values included in the third measurement value is p, p is an integer greater than 0 and less than or equal to n-1;

The processing unit is used for determining the first measured value based on the second measured value and the third measured value.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the processing unit is configured to determine the first measurement value based on the second measurement value and the third measurement value includes:

The processing unit is configured to determine, among the third measured values, a measured value greater than the third threshold as the first measured value;

The processing unit is configured to update the secondary reference signal set corresponding to the measurement value greater than the third threshold in the third measurement value to the primary reference signal set.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the processing unit is configured to determine the first measurement value based on the second measurement value and the third measurement value, including:

The processing unit is configured to determine that the first measurement value is the maximum value of the second measurement value and the third measurement value; or,

The processing unit is configured to determine that the first measurement value is an average value of the second measurement value and the third measurement value; or,

The processing unit is configured to determine that the first measurement value is an average value of m measurement values in the second measurement value and the third measurement value, and the m measurement values are all greater than a fourth threshold, and m is an integer smaller than n; or

The processing unit is used to determine that the first measurement value is the maximum value of k measurement values among the second measurement value and the third measurement value, where k is an integer less than n.

The at least one downlink reference signal set corresponds to n measured values, and the first measured value is the maximum value among the n measured values; or,

The at least one downlink reference signal set corresponds to n measured values, and the first measured value is an average value of the n measured values; or,

The partial reference signals in the at least one downlink reference signal set correspond to m measured values, the m measured values are all greater than the fourth threshold, and the first measured value is the average value of the m measured values, where m is less than n integer; or,

The partial reference signals in the at least one downlink reference signal set correspond to k measured values, and the first measured value is a maximum value among the k measured values, where k is an integer smaller than n.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the third threshold is greater than the first threshold.

The first measurement value includes at least one of a reference signal received power RSRP and a reference signal received quality RSRQ.

Optionally, the first measured value is RSRP.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the processing unit being used to determine to skip the RRM measurement includes:

The processing unit is configured to determine to skip the RRM measurement based on first information, where the first information is used to indicate that the terminal device is not allowed to determine whether to perform intra-frequency cell measurement based on the measurement result of the synchronization signal block SSB of the serving cell.

The first information is also used to indicate that the terminal device is not allowed to determine whether to perform inter-frequency or inter-RAT measurement based on the priority of inter-frequency or inter-RAT RAT and the SSB measurement result of the serving cell.

The RRM measurement includes at least one of intra-frequency cell measurement, inter-frequency cell measurement, and inter-RAT measurement.

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the first configuration information includes at least one of the following:

CSI-RS resource configuration information; or,

CSI-RS resource set configuration information configured as TRS; or,

In a possible implementation manner of the third aspect or the fourth aspect of the present application, the first configuration information includes at least one piece of configuration information, and the at least one piece of configuration information is in one-to-one correspondence with the at least one downlink reference signal set;

CSI-RS resource configuration information; or,

CSI-RS resource set configuration information configured as TRS; or,

In the third aspect or the fourth aspect of the embodiment of the present application, the components of the communication device can also be used to execute the steps performed in each possible implementation manner of the first aspect or the second aspect. For details, please refer to the first aspect or the second aspect. The second aspect will not be repeated here.

A fifth aspect of the embodiment of the present application provides a communication device, including at least one processor, and the at least one processor is coupled to a memory;

The memory is used to store programs or instructions;

The at least one processor is configured to execute the program or the instruction, so that the device implements the method in the aforementioned first aspect or any possible implementation manner of the first aspect.

The sixth aspect of the embodiment of the present application provides a communication device, including at least one processor, and the at least one processor is coupled to a memory;

The memory is used to store programs or instructions;

The at least one processor is configured to execute the program or instruction, so that the device implements the method in the second aspect or any possible implementation manner of the second aspect.

The seventh aspect of the embodiment of the present application provides a computer-readable storage medium, the readable storage medium stores instructions, and when the instructions are executed, the computer executes the first aspect or any possible implementation of the first aspect The method, or, causing the computer to execute the method according to the second aspect or any possible implementation manner of the second aspect.

The eighth aspect of the embodiments of the present application provides a computer program product (or called a computer program). The computer program product includes computer program code. When the computer program code runs on a computer, the computer executes any of the above-mentioned first aspect or the first aspect. A method in a possible implementation manner, or causing a computer to execute the second aspect or a method in any possible implementation manner of the second aspect.

The ninth aspect of the embodiment of the present application provides a chip system, the chip system includes at least one processor, configured to implement the functions involved in the above-mentioned first aspect or any possible implementation of the first aspect, or, use To realize the functions involved in the above second aspect or any possible implementation manner of the second aspect.

In a possible design, the chip system may further include a memory, and the memory is used to store instructions and/or data. The system-on-a-chip may consist of chips, or may include chips and other discrete devices. Optionally, the chip system further includes an interface circuit for inputting or outputting instructions and/or data.

The tenth aspect of the embodiment of the present application provides a communication system, the communication system includes at least the terminal device involved in the first aspect or any possible implementation of the first aspect, or, the communication system includes at least the second aspect Or the terminal device involved in any possible implementation manner of the second aspect.

In a possible design, the communication system further includes a network device that communicates with the terminal device.

Among them, the technical effects brought by any possible implementation manners from the third aspect to the tenth aspect can refer to the above-mentioned first aspect and the different implementation manners in the first aspect (or the second aspect and the second aspect) The technical effects will not be repeated here.

It should be understood that "sending" in this application may also be referred to as "output", and "receiving" may also be referred to as "input".

It can be seen from the above technical solutions that, in the first configuration information received by the terminal device from the network device, at least one downlink reference signal set configured in the first configuration information is used for one or more cells. Wherein, when the first measurement value corresponding to the at least one downlink reference signal set is greater than the first threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is relatively good, so that the terminal device can determine the camping of the terminal device A cell is located within the one or more cells. In other words, based on the at least one downlink reference signal set, the terminal device can obtain time-frequency synchronization in the cell where it resides, so that the terminal device determines to skip the RRM measurement. Therefore, when the first measurement value corresponding to at least one downlink reference signal set is greater than the first threshold, since the terminal device can obtain time-frequency synchronization without exiting the low power consumption mode to perform RRM measurement, the power consumption of the terminal device can be reduced and increased. Long battery life improves user experience.

Description of drawings

Fig. 1 is a schematic diagram of the network architecture provided by the present application;

Fig. 2a is another schematic diagram of the network architecture provided by the present application;

Figure 2b is another schematic diagram of the network architecture provided by the present application;

Fig. 3 is a schematic diagram of the communication method provided by the present application;

FIG. 4 is another schematic diagram of the communication method provided by the present application;

FIG. 5 is another schematic diagram of the communication method provided by the present application;

FIG. 6 is another schematic diagram of the communication method provided by the present application;

FIG. 7 is another schematic diagram of the communication method provided by the present application;

FIG. 8 is another schematic diagram of the communication method provided by the present application;

FIG. 9 is a schematic diagram of a communication device provided by the present application;

FIG. 10 is another schematic diagram of the communication device provided by the present application.

Detailed ways

First of all, some terms used in the embodiments of the present application are explained to facilitate the understanding of those skilled in the art.

(1) Terminal equipment (or terminal, user, user terminal, terminal user, user equipment, etc.): it can be a wireless terminal equipment that can communicate with network equipment, and the wireless terminal equipment can provide voice and/or data to users. devices, or handheld devices with wireless connectivity, or other processing devices connected to a wireless modem.

The terminal may communicate with one or more core networks or the Internet via a radio access network (radio access network, RAN). The terminal can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone, mobile phone), a computer or a data card, for example, it can be a portable, pocket, hand-held, computer built-in or vehicle-mounted mobile phone device. For example, a terminal may be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (personal digital assistant, PDA), tablet computer (Pad), computer with wireless transceiver function and other equipment. A terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station (mobile station, MS), a remote station, or an access point. , AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), customer premises equipment (customer premises equipment, CPE), terminal (terminal), user Equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc. The terminal device may also be a wearable device and a next-generation communication system, for example, a terminal device in a fifth generation (5 ^th generation, 5G) communication system or a terminal device in a future evolving network.

In addition, the terminals involved in this application can be widely used in various scenarios, for example, device to device (device to device, D2D), vehicle to everything (vehicle to everything, V2X) communication, machine type communication (machine-type communication, MTC), thing Internet of things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal.

(2) Network device: it can be a device in a wireless network, for example, a network device can be a radio access network (radio access network, RAN) node (or device) that connects a terminal device to a wireless network, and can be called a wireless access network. A network access device may generally also be referred to as a base station. At present, some examples of RAN equipment are: new generation base station (generation Node B, gNodeB), transmission reception point (transmission reception point, TRP), evolved node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved Node B, or home Node B , HNB), base band unit (base band unit, BBU), or wireless fidelity (wireless fidelity, Wi-Fi) access point (access point, AP), etc. In addition, in a network structure, the network device may include a centralized unit (centralized unit, CU) node and/or a distributed unit (distributed unit, DU) node.

Optionally, one network device may include one or more cells.

In addition, the network device may also include a core network device, and the core network device includes, for example, an access and mobility management function (access and mobility management function, AMF), a user plane function (user plane function, UPF) or a session management function (session management function, SMF) etc.

It can be understood that the network device may also be other devices that provide wireless communication functions for the terminal device. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.

In the present application, the device for realizing the function of the network device may be a network device, or may be a device capable of supporting the network device to realize the function, such as a chip system.

(3) The terms "system" and "network" in this application may be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And/or" describes the association relationship of associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example "at least one of A, B or C" includes A, B, C, AB, AC, BC or ABC. And, unless otherwise specified, ordinal numerals such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects degree.

In addition, in the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or descriptions. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "such as" is intended to present relevant concepts in a concrete manner for easy understanding.

(4) Configuration and pre-configuration:

In the application, both configuration and pre-configuration are used. Configuration means that the base station/server sends some parameter configuration information or parameter values to the terminal through messages or signaling, so that the terminal can determine communication parameters or transmission resources according to these values or information.

Pre-configuration is similar to configuration. It can be the parameter information or parameter value negotiated by the base station/server and the terminal device in advance, or it can be the parameter information or parameter value adopted by the base station/server or terminal device specified in the standard protocol, or it can be a pre-stored Parameter information or parameter values at the base station/server or terminal equipment. This application does not limit this.

Furthermore, these values and parameters can be changed or updated.

In order to facilitate understanding of the method provided in the embodiment of the present application, the system architecture of the method provided in the embodiment of the present application will be described below. It can be understood that the system architecture described in the embodiments of the present application is for more clearly illustrating the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application.

FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application. Please refer to FIG. 1, the communication system includes terminal equipment 101, next generation Node B (next Generation Node B, gNB) 102, next generation evolved Node B (next generation evolved Node B, ng-eNB) 103, access and mobility Management function (access and mobility management function, AMF) 104 and location management function (location management function, LMF) 105. The LMF105 is a network element, module or component that provides positioning functions for terminal equipment in the NR core network.

Optionally, the communication system further includes an enhanced serving mobile location center (evolved serving mobile location center, E-SMLC) 106 and a secure user plane location location platform (secure user plane location locaiton platform, SLP) 107. E-SMLC106 is a network element, module or component that provides positioning functions in the 4G core network. SLP107 is a network element, module or component used to process the user plane security positioning protocol in the 4G core network.

Wherein, the terminal device 101 communicates with an access network device (such as gNB102 or ng-eNB103 in FIG. 1 ) through a Uu interface. ng-eNB103 is an access network device in a Long Term Evolution (LTE) communication system, and gNB102 is an access network device in an NR communication system. In the communication system, the access network devices communicate through the Xn interface, and the access network devices communicate with the AMF 104 through the NG-C interface. The AMF104 and the LMF105 communicate through the NL1 interface, and the AMF104 is equivalent to a router for communicating between the access network equipment and the LMF105. The LMF105 is used to calculate the location of the terminal equipment.

The above FIG. 1 only shows an example in which the communication system includes two access network devices, gNB and ng-eNB. However, in practical applications, the communication system may include at least one access network device, which is not limited in this application.

In this application, in the communication system shown in FIG. 1 above, LMF is the name in the current communication system. In the future communication system, the name of the LMF may change with the evolution of the communication system. In the current communication system or the future communication system, as long as the functional network elements with other names having similar functions to the LMF can understand the LMF in the embodiment of the present application, and are applicable to the communication method provided in the embodiment of the present application.

Exemplarily, the communication system applied in this application may also include a single or multiple network devices and a single or multiple terminal devices as shown in FIG. 2a and FIG. 2b.

Optionally, as shown in FIG. 2a, a single network device may transmit data or control signaling to a single or multiple terminal devices.

Optionally, as shown in FIG. 2b, multiple network devices may simultaneously transmit data or control signaling for a single terminal device.

In the communication system shown in FIG. 1 above, based on the core network location management function (Location management function, LMF) control, the access network and terminal-assisted architecture can be used to realize the positioning process of the terminal device.

Exemplarily, taking the terminal device as an example, the current Rel-16 positioning standardizes the SRS for positioning, and the multiple-input multiple-output (MIMO) SRS of Rel-15 to support the following Positioning Technology:

Uplink time difference of arrival (uplink time difference of arrival, UL-TDOA) positioning technology: each cell measures the uplink relative time of arrival (uplink relative time of arrival, UL RTOA) of the SRS signal of the UE, and reports the measurement result to the LMF;

Uplink arrival of arrival (UL-AoA) positioning technology: each cell measures the UL AoA of the SRS signal of the UE, and reports the measurement result to the LMF;

Multi-cell round trip time (Multi-RTT) positioning technology: The UE measures the Rx–Tx time difference (Rx–Tx time difference) of each cell positioning reference signal (PRS), and reports the measurement results Report to the LMF; each cell measures the Rx–Tx time difference of the gNB for the SRS signal of the UE, and reports the measurement result to the LMF.

In addition, in order to reduce the power consumption of the terminal when the service demand is low, and at the same time take into account the fast access connection when the service arrives, the terminal equipment in the above communication system can also be based on the radio resource control inactive (RRC_INACTIVE) state (or called INACTIVE state) This low-power state communicates. In addition, the terminal device can also be in the radio resource control idle (RRC_IDLE) state (or called IDLE state), and the radio resource control connected (radio resource control connected, RRC_CONNECTED) (or called CONNECTED state) state to communicate.

The following will introduce the services supported by terminal equipment in different states, including:

1. The services supported by the RRC_IDLE state include at least one of the following:

-PLMN selection (public land mobile network selection, PLMN selection);

- Receive system information broadcast (Broadcast of system information);

- Cell mobility: Cell re-selection mobility;

-Receive paging for mobile terminated data is initiated by 5GC initiated by 5GC;

-NAS configures core network paging discontinuous reception (DRX for CN paging configured by NAS).

2. The services supported by the RRC_INACTIVE state include at least one of the following:

-PLMN selection;

-Broadcast of system information;

-Cell re-selection mobility;

-Receive the paging initiated by the next generation access network (Paging is initiated by NG-RAN (RAN paging));

- Access network notification area (RAN-based notification area (RNA) is managed by NG-RAN) that supports next-generation access network management;

-Discontinuous reception of access network paging configured by next-generation access network (DRX for RAN paging configured by NG-RAN);

-The terminal establishes the connection between the control plane and the user plane between the 5GC-NG-RAN (5GC-NG-RAN connection (both C/U-planes) is established for UE);

- The UE Inactive AS context is stored in NG-RAN and the UE in the terminal and the next-generation access network;

-The next generation access network knows the access network notification area where the terminal is located (NG-RAN knows the RNA which the UE belongs to);

3. The services supported by the RRC_CONNECTED state include at least one of the following:

-The UE AS context is stored in NG-RAN and the UE in the UE AS context is stored in NG-RAN and the UE;

-NG-RAN knows the cell which the UE belongs to;

-Transfer unicast data to/from the UE (Transfer of unicast data to/from the UE);

- Network controlled mobility including measurements.

It can be seen from the above content that, generally speaking, the terminal supports sending SRS based on the above-mentioned "Transfer of unicast data to/from the UE" service in the RRC_CONNECTED state. At this time, if the terminal sends a cell handover, the SRS configuration in the corresponding target cell will be reconfigured by the target cell (or called the target cell, or called the handover cell, etc.), and the SRS configuration will be changed from the source cell (or called the pre-handover cell) via the handover command. cell) to the terminal. After the terminal establishes a connection in the target cell, the SRS configuration of the target cell starts to apply.

In future communication systems (such as Rel-17), positioning in the RRC_INACTIVE state will be supported soon, including terminal equipment measuring PRS and sending SRS in RRC_INACTIVE state, and terminal equipment reporting positioning data to the base station/core network in RRC_INACTIVE state (such as PRS measurement result), to reduce terminal power consumption. Since cell reselection may occur when the terminal is in the RRC_INACTIVE state, the network side will not be notified (as long as the radio access network-based Notification Area (RAN-based Notification Area, RAN-based Notification Area, RNA notification area for short) update is not triggered), The behavior of the SRS configuration used by the terminal in the RRC_INACTIVE state when cell reselection occurs (hereinafter referred to as low power consumption positioning) is not clear, and the corresponding specific solution is still under discussion.

Generally, cell reselection refers to a process in which a terminal device selects the best cell to provide service signals by monitoring the signal quality of neighboring cells and the current cell in RRC_IDLE state or RRC_INACTIVE state. Cell reselection may include the following three processes:

1. According to the measurement start standard, measure the current serving cell and neighboring cells (including cells of the same frequency, different frequency, and different systems);

2. Determine whether the signal of the neighboring cell meets the reselection criteria;

3. If it matches, start reselection, receive system information of the new cell (for example: System Information Block 1 (System Information Block 1, SIB1)), if there is no access restriction (for example, the operator may have some reserved cells or docking Enter a restricted cell), etc., then reside in a new cell. If it does not meet the requirements, it will still stay in the current serving cell;

Among them, two parameters need to be considered when measuring adjacent cells—cell reselection priority and signal quality of the cell currently camped on. The process can be briefly described as: if the priority is higher than the current cell, no matter how good the quality of the current cell is, the measurement must be started unconditionally; Compared with the quality standard issued by the network, if it is better than this standard, the adjacent cell will not be measured; if it is worse than this standard, the adjacent cell will be measured. After the cell reselection measurement, the quality of the cell is judged and cell reselection is performed. The relevant basis includes the signal quality of the serving cell, the signal quality of the neighboring cell, the reselection threshold issued by the network, and the cell access parameters.

Optionally, the cell access parameters include whether the cell is barred, whether it is reserved (reserved, or access level, etc.).

In a possible implementation process of low power consumption positioning, the terminal device needs to receive the downlink reference signal from the network device in the low power consumption mode based on the configuration information of the downlink reference signal (hereinafter referred to as the downlink reference signal) used for positioning. signal for time-frequency synchronization. After obtaining time-frequency synchronization, the terminal device sends an uplink reference signal for positioning (hereinafter referred to as the uplink reference signal) to the network device in the low power consumption mode, so that the network device measures the uplink reference signal to determine the position of the terminal device, and realizes positioning. The location of the end device.

Optionally, the terminal device being in the low power consumption mode may mean that the terminal device is in the RRC_INACTIVE state or the RRC_IDLE state.

In a solution to the above technical problem, the terminal may determine a cell list based on configuration or pre-configuration, and the SRS configurations corresponding to one or more cells included in the cell list may be the same. When the terminal device moves in the one or more cells, the terminal device can continue to use the SRS configuration without requesting the network device to update the SRS configuration.

However, the problem with this implementation process is that after the terminal equipment receives the cell list associated with the SRS configuration, determining whether the SRS configuration is available is based on the premise that the terminal equipment continues to perform mobility measurement in the RRC_INACTIVE state. That is to say, the terminal device needs to continuously perform neighbor cell measurement, and continuously evaluate whether the current camping cell satisfies the cell reselection condition compared with the neighbor cell. After deciding to reselect a cell, it is also necessary to read the system information of the new camping cell. These actions have no additional purpose for positioning, but will increase the power consumption of the terminal.

In addition, the conventional INACTIVE state cell mobility measurement is based on SSB, and the corresponding terminal synchronization is also based on SSB. Since the time domain position of SSB is relatively fixed, and under the normal SSB cycle of 20 milliseconds (ms), the time between the terminal synchronizing SSB and sending SRS may exceed 15ms, and the terminal needs to maintain clock synchronization within 15ms, which means that the terminal cannot enter the sleep state , resulting in increased power consumption.

In order to solve the above technical problems, the present application provides a communication method and device, which are used to reduce power consumption of terminal equipment, increase battery life, and improve user experience.

Please refer to FIG. 3 , which is a schematic diagram of a communication method provided by this application, and the method includes the following steps.

S101. The network device sends first configuration information.

In this embodiment, the network device sends the first configuration information to the terminal device in step S101, and correspondingly, the terminal device receives the first configuration information from the network device in step S101. Specifically, the first configuration information sent by the network device in step S101 is used to configure at least one downlink reference signal set.

Optionally, the downlink reference signal included in the downlink reference signal set is a channel state information reference signal (channel state information reference signal, CSI-RS); or, the downlink reference signal included in the downlink reference signal set is a tracking reference signal (tracking reference signal, TRS).

In a possible implementation manner, in step S101, the terminal device is in a CONNECTED state, and receives first configuration information from a network device.

Wherein, the first configuration information is carried in system information; or, the first configuration information is carried in an RRCRelease message.

In a possible implementation manner, the first configuration information sent by the network device to the terminal device in step S101 includes at least one of the following:

CSI-RS resource configuration information; or,

CSI-RS resource set configuration information configured as TRS; or,

Exemplarily, a downlink reference signal set may include one or more TRSs, where each TRS corresponds to a CSI-RS resource set (resource set).

In another possible implementation manner, the first configuration information sent by the network device to the terminal device in step S101 includes at least one configuration information, and the at least one configuration information corresponds to the at least one downlink reference signal set;

CSI-RS resource configuration information; or,

CSI-RS resource set configuration information configured as TRS; or,

Specifically, the number of reference signals included in at least one downlink reference signal set may be one or n (n is an integer greater than 1). Wherein, when the number of reference signals contained in at least one downlink reference signal set can be n, in the first configuration information used to configure n reference signal sets, the number of configuration information contained in the at least one downlink reference signal set is equal to The number of reference signals included in the set may be the same (that is, the above-mentioned one-to-one correspondence implementation), or different (that is, the first configuration information corresponds to multiple downlink reference signal sets), so that the network device in step S101 The first configuration information sent to the terminal device may be implemented in the above multiple manners.

S102. The terminal device receives at least one downlink reference signal set based on the first configuration information.

In this embodiment, in step S102, the network device sends at least one downlink reference signal set to the terminal device based on the first configuration information sent in step S101. Correspondingly, in step S102, the terminal device receives at least one downlink reference signal set from the network device based on the first configuration information received in step S101.

Optionally, the terminal device receives part or all of at least one downlink reference signal set in step S102.

Optionally, the network device that sends the first configuration information in step S101 and the network device that sends the at least one downlink reference signal set in step S102 may be the same network device or different network devices.

In a possible implementation manner, in step S102, the terminal device is in the INACTIVE state or the IDLE state, and receives at least one downlink reference signal set based on the first configuration information.

S103. The terminal device performs measurement based on at least one set of downlink reference signals to obtain a first measurement value.

In this embodiment, the terminal device performs measurement based on at least one set of downlink reference signals received and obtained in step S102, to obtain the first measurement value.

In a possible implementation manner, the first measurement value includes at least one of reference signal received power (reference signal received power, RSRP) and reference signal received quality (reference signal received quality, RSRQ). In other words, the first measured value may specifically be RSPR, or the first measured value may specifically be RSPQ, or the first measured value may specifically be RSPR and RSPQ, or other implementation manners, which are not specifically described here. limited.

S104. When the first measurement value is greater than the first threshold, the terminal device determines to skip RRM measurement.

In this embodiment, when the first measurement value obtained by the terminal device in step S103 is greater than the first threshold, the terminal device determines to skip the RRM measurement in step S104.

It should be noted that, in step S104, when the first measurement value is greater than the first threshold, the terminal device determines to skip the RRM measurement, which can be expressed as that the terminal device skips the RRM measurement; it can also be expressed as that the terminal device is allowed to skip the RRM measurement. It can also be expressed as that the terminal device is not allowed to perform RRM measurement; it can also be expressed as that the terminal device is not allowed to perform RRM measurement; it can also be expressed as that the terminal device determines that it does not need to perform RRM measurement; it can also be expressed as, The terminal device does not need to perform RRM measurement; it may also be expressed as that the terminal device determines not to perform RRM measurement; it may also be expressed as that the terminal device does not perform RRM measurement; it may also be expressed as that the terminal device is allowed not to perform RRM measurement.

Optionally, before step S104, the method further includes that the terminal device receives the first threshold sent from the network device. Wherein, the first threshold may be carried in the same message as the first configuration information sent by the network device in step S101. Alternatively, the first threshold may be carried in a different message from the first configuration information sent by the network device in step S101, which is not limited here.

Optionally, the first threshold is preconfigured on the terminal device.

In a possible implementation manner, the terminal device determining to skip the RRM measurement in step S104 includes: the terminal device determining to skip the RRM measurement based on first information, and the first information is used to indicate that the terminal device is not allowed to The determination of whether to perform intra-frequency cell measurement is performed based on the measurement result of the SSB of the serving cell.

Further, the first information may also be used to indicate that the terminal device is not allowed to determine whether to perform different frequency or different radio access technology (radio access technology, RAT) priority and the SSB measurement result of the serving cell. RAT measurement.

Optionally, the first information is preconfigured on the terminal device.

Optionally, before step S104, the method further includes: the terminal device receives the first information sent from the network device.

Specifically, when the first measurement value is greater than the first threshold, the terminal device may determine to skip the RRM measurement based on the first information. Wherein, the RRM measurement skipped by the terminal device based on the first information may specifically be: during the cell reselection process, the terminal device measures the current serving cell and neighboring cells (including cells of the same frequency, different frequency, and different RAT) process.

In a possible implementation manner, the RRM measurement that the terminal device determines to skip in step S104 may specifically include at least one of intra-frequency cell measurement, inter-frequency cell measurement, and inter-RAT measurement.

Based on the above technical solution, the terminal device receives the first configuration information from the network device in step S101, at least one downlink reference signal set configured by the first configuration information is used for one or more cells. Wherein, when the first measurement value corresponding to the at least one downlink reference signal set is greater than the first threshold, the terminal device determines in step S103 that the signal quality of the at least one downlink reference signal set is relatively good, so that the terminal device can determine that the terminal device The residential cell of is located in the one or more cells. In other words, based on the at least one downlink reference signal set, the terminal device can obtain time-frequency synchronization in the cell where it resides, so that the terminal device determines to skip the RRM measurement in step S104. Therefore, when the first measurement value corresponding to at least one downlink reference signal set is greater than the first threshold, since the terminal device can obtain time-frequency synchronization without exiting the low power consumption mode to perform RRM measurement, the power consumption of the terminal device can be reduced and increased. Long battery life improves user experience.

In a possible implementation manner, during the implementation of step S104, when the first measurement value is smaller than the first threshold, the terminal device performs the RRM measurement.

Optionally, when the first measurement value is equal to the first threshold, the terminal device determines to skip RRM measurement.

Specifically, in the first configuration information received by the terminal device from the network device in step S101, at least one downlink reference signal set configured in the first configuration information is used for one or more cells. Wherein, when the terminal device determines that the first measurement value corresponding to the at least one downlink reference signal set is smaller than the first threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is poor, so that the terminal device can determine that the terminal device The cell where the cell resides is located in other cells other than the one or more cells. In other words, the terminal device may not be able to obtain time-frequency synchronization in the cell where it resides based on the at least one downlink reference signal set, so that the terminal device needs to perform RRM measurement and obtain time-frequency synchronization in the cell where it resides.

S105. The terminal device determines whether the SRS is valid based on the first measurement value.

In this embodiment, in step S105, the terminal device determines whether the SRS corresponding to at least one downlink reference signal set is valid based on the first measurement value obtained in step S103.

Optionally, after step S103, the terminal device may execute step S104 to determine whether to perform RRM measurement, and the terminal device executes step S105 to send an SRS, so that the network device locates the terminal device. Alternatively, the terminal device may perform step S104 to determine whether to perform RRM measurement without performing step S105. Alternatively, the terminal device may perform step S105 to send the SRS instead of performing the process of determining whether to perform RRM measurement in step S104, so as to realize the positioning of the terminal device by the network device, which is not limited here.

It should be noted that, in step S105, the terminal device determines whether the SRS corresponding to at least one downlink reference signal set is valid based on the first measurement value specifically includes: when the first measurement value is greater than a second threshold, the terminal device determines that the at least one downlink reference signal set is valid. Whether the SRS corresponding to a downlink reference signal set is valid, that is, the terminal device can send the SRS corresponding to the at least one downlink reference signal set, so that the network device can locate the terminal device based on the SRS; when the first measurement value is less than the second threshold The terminal device determines that the SRS corresponding to the at least one downlink reference signal set is invalid, that is, the terminal device does not send the SRS corresponding to the at least one downlink reference signal set, and the terminal device requests the network device to update SRS configuration information to send the SRS.

In addition, in step S105, the terminal device determines whether the SRS corresponding to the at least one downlink reference signal set is valid based on the first measurement value, which can be expressed as, the terminal device determines based on the first measurement value It can also be expressed as, the terminal device determines whether to send the SRS corresponding to at least one downlink reference signal set based on the first measurement value; it can also be expressed as, the terminal device determines whether to suspend sending based on the first measurement value The SRS corresponding to at least one downlink reference signal set.

Optionally, before step S104, the method further includes that the terminal device receives the second threshold sent from the network device. Wherein, the second threshold may be carried in the same message as the first configuration information sent by the network device in step S101. Alternatively, the second threshold may be carried in a different message from the first configuration information sent by the network device in step S101, which is not limited here.

Optionally, the second threshold is preconfigured on the terminal device.

In a possible implementation manner, in the aforementioned step S101, the first configuration information received by the terminal device from the network device is used to configure at least one downlink reference signal set, wherein the downlink reference signal in at least one downlink reference signal set The number of signal sets can be one or more. The following will describe various implementations of the SRS corresponding to the at least one downlink reference signal set according to the difference in the number of downlink references included in the at least one downlink reference signal set.

In an implementation example, in the aforementioned step S101, the first configuration information received by the terminal device from the network device is used to configure a set of downlink reference signals, in other words, the number of downlink references included in at least one set of downlink reference signals is 1.

Before step S105, the method further includes: the terminal device receives second configuration information from the network device, the second configuration information is used to configure the first SRS; the first SRS is associated with the at least one downlink reference signal set; When the first measurement value is greater than the second threshold, the terminal device sends the first SRS based on the second configuration information.

Specifically, before step S105, the terminal device may also receive second configuration information from the network device, wherein the SRS sent by the terminal device based on the second configuration information may be used by the network device to locate the terminal device. When the first measurement value is greater than the second threshold, the terminal device determines in step S105 that the first SRS corresponding to the at least one downlink reference signal set is valid, so that the terminal device sends the first SRS based on the second configuration information. Therefore, since the terminal device does not need to exit the low power consumption mode to request the network device to update the SRS configuration information, it can send SRS to realize low power consumption positioning, so that the power consumption of the terminal device can be reduced, the battery life can be increased, and the user experience can be improved.

In a possible implementation manner, during the implementation of step S105, when the first measured value is smaller than the second threshold, the terminal device stops sending the first SRS.

Specifically, when the first measurement value is smaller than the second threshold, the terminal device determines that the first SRS corresponding to the at least one downlink reference signal set is invalid, so that the terminal device stops sending the first SRS. In other words, when the first measurement value is less than the second threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is poor, and the terminal device needs to request the network device to update SRS configuration information to send SRS.

In another implementation example, in the aforementioned step S101, the first configuration information received by the terminal device from the network device is used to configure multiple downlink reference signal sets, in other words, the downlink reference signal contained in at least one downlink reference signal set The quantity is multiple (namely n).

Before step S105, the method further includes: the terminal device receives third configuration information from the network device, the third configuration information is used to configure q SRSs associated with n downlink reference signal sets, where q is less than or equal to n: when the first measurement value is greater than the second threshold, the terminal device sends a target SRS based on the third configuration information, where the target SRS is the first measurement value associated with n downlink reference signal sets among the q SRSs The SRS of the corresponding downlink reference signal set.

Optionally, the number q of SRSs configured in the third configuration information may include multiple implementations, including:

q is 1; or,

Specifically, before step S105, the terminal device may also receive third configuration information from the network device, wherein the SRS sent by the terminal device based on the third configuration information may be used by the network device to locate the terminal device. When the first measurement value is greater than the second threshold, the terminal device determines in step S105 that the target SRS is valid, so that the terminal device sends the target SRS based on the third configuration information. Therefore, since the terminal device does not need to exit the low power consumption mode to request the network device to update the SRS configuration information, it can send SRS to realize low power consumption positioning, so that the power consumption of the terminal device can be reduced, the battery life can be increased, and the user experience can be improved.

In a possible implementation manner, during the implementation of step S105, when the first measurement value is smaller than the second threshold, the terminal device stops sending the target SRS.

Optionally, when the first measurement value is equal to the second threshold, the terminal device determines that the target SRS corresponding to the at least one downlink reference signal set is invalid.

Specifically, when the first measurement value is smaller than the second threshold, the terminal device determines that the target SRS is invalid, so that the terminal device stops sending the target SRS. In other words, when the first measurement value is less than the second threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is poor, and the terminal device needs to request the network device to update SRS configuration information to send SRS.

Optionally, in the above implementation examples, the first configuration information and the second configuration information (or third configuration information) sent by the network device in step S101 are carried in the same message.

Optionally, in the above implementation example, the first configuration information and the second configuration information (or third configuration information) sent by the network device in step S101 are carried in different messages.

Optionally, in the above implementation example, when the first measurement value is equal to the second threshold, the terminal device determines that the first SRS (or target SRS) corresponding to the at least one downlink reference signal set is valid.

Optionally, in the above implementation example, when the first measurement value is equal to the second threshold, the terminal device sends the first SRS (or target SRS) based on the second configuration information.

Optionally, in the foregoing implementation example, the second threshold is smaller than the first threshold. Specifically, the second threshold may be smaller than the first threshold. Wherein, when the first measurement value is greater than the first threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is good, so that the terminal device does not need to perform RRM in step S104 and the terminal device can send in step S105 The at least one downlink reference signal sets the corresponding first SRS, so that the network device locates the terminal device based on the first SRS. When the first measurement value is less than the first threshold and greater than the second threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is average, so that the terminal device performs RRM in step S104 and the terminal device can in step S105 Sending the first SRS corresponding to the at least one downlink reference signal set, so that the network device locates the terminal device based on the first SRS. When the first measurement value is less than the second threshold, the terminal device determines that the signal quality of the at least one downlink reference signal set is poor, so that the terminal device performs RRM in step S104 so that the network device determines the cell to camp on, and needs to report to the network The device requests to update SRS configuration information to send SRS.

Based on the above technical solution, the terminal device receives first configuration information from the network device in step S101, at least one downlink reference signal set configured by the first configuration information is used for one or more cells. Wherein, in step S105, the terminal device may determine whether the SRS corresponding to the at least one downlink reference signal set is valid based on the first measurement value corresponding to the at least one downlink reference signal set. Wherein, in step S105, when the terminal device determines that the SRS corresponding to the at least one downlink reference signal set is valid based on the first measurement value corresponding to the at least one downlink reference signal set, the terminal device determines the signal quality of the at least one downlink reference signal set Preferably, the terminal device can send the SRS corresponding to the at least one downlink reference signal set without requesting the network device to update the SRS configuration information. Therefore, since the terminal device does not need to exit the low power consumption mode to request the network device to update the SRS configuration information, it can send SRS to realize low power consumption positioning, so that the power consumption of the terminal device can be reduced, the battery life can be increased, and the user experience can be improved.

In the aforementioned step S101, the first configuration information received by the terminal device from the network device is used to configure at least one downlink reference signal set, where the number of downlink reference signal sets in the at least one downlink reference signal set can be one or more indivual. Correspondingly, the terminal device may perform a measurement process in step S103 based on one or more sets of downlink reference signals. The implementation scenarios in the implementation examples shown in FIG. 4 and FIG. 5 will be further described below.

Implementation manner 1, the number of downlink reference signal sets included in the at least one downlink reference signal set is one.

It should be understood that, as described in the foregoing step S101, the number of at least one downlink reference signal set configured in the first configuration information may be one. At this time, the first configuration information may be configuration information corresponding to one independent CSI-RS resource, or configuration information corresponding to one CSI-RS resource set configured as TRS (for example, one CSI-RS resource set configured as TRS The CSI-RS resource set can include 2 CSI-RS resources in the same time slot, or 4 CSI-RS resources in two adjacent time slots), or one or more configurations The configuration information corresponding to the CSI resource configuration of the CSI-RS resource set of TRS (for example, one CSI resource configuration including one or more CSI-RS resource sets configured as TRS corresponds to the channel state information in the 38.331 standard document - resource The implementation described in the configuration information element (CSI-ResourceConfig IE).

Implementation mode 1 will be described in detail below with reference to the implementation examples shown in FIG. 4 and FIG. 5 . For the convenience of description, in the following example, the downlink reference signal contained in at least one downlink reference signal set is 1 TRS, and the first measurement value is RSRP (correspondingly, the first threshold is the first RSPR threshold, and the second threshold is the first RSPR threshold. Two RSPR thresholds) are illustrated as an example.

In the first implementation manner, after receiving the first configuration information in step S101, the terminal device may enter a low power consumption standby mode (for example, INACTIVE state or IDLE state). Thereafter, the terminal device is in the low-power standby mode, corresponding to Figure 4 (the height of the bar graph shown in Figure 4 indicates the power consumption, that is, the higher the height, the higher the power consumption, and the lower the height, the lower the power consumption) In the deep sleep state shown, when the periodic SRS is about to be sent, the extremely low power internal clock provides rough timing to allow the terminal device to wake up in advance. After the power consumption ramps up, the terminal device completes power-on and software and program loading, opens the radio frequency channel and receives TRS in step S102 to complete time-frequency synchronization.

In addition to the synchronization itself, the terminal device can also obtain the RSRP by measuring the TRS in step S103, and use it in step S104 and step S105 to determine whether to skip the RRM reference and whether the SRS corresponding to the TRS is available. Specifically include:

If the RSRP of the TRS is higher than the first RSRP threshold, the terminal device does not need to perform IDLE or INACTIVE mobility measurement (that is, RRM measurement). frequency network, SFN) method to send TRS), the terminal device does not need to perceive the change of the serving cell caused by mobility.

If the RSRP of the TRS is lower than the first RSRP threshold, the terminal device starts to perform IDLE or INACTIVE mobility measurement (RRM measurement), including the same-frequency, different-frequency, and different-RAT neighboring cells configured by the terminal device based on the RRCRelease message or the SIB of the serving cell Configure the SSB or CSI-RS for measuring neighboring cells, and determine the cell to reside on based on the cell selection and cell reselection procedures in the IDLE or INACTIVE state determined by TS 38.304.

If the RSRP of the TRS is higher than the second RSRP threshold, the terminal device may send the SRS corresponding to the TRS.

If the RSRP of the TRS is lower than the second RSRP threshold, the terminal device cannot send the SRS corresponding to the TRS. If the terminal device still needs to send the SRS, it can initiate access to the cell where it resides, and request to update the SRS or request to use the SRS configuration to send the SRS.

Optionally, the RSRP of the TRS here is generally CSI-RSRP, because the TRS is a special CSI-RS. At the same time, the CSI-RSRP can be the RSRP of layer 1 or the RSRP of layer 3.

For example, if it is the RSRP of layer 1, the RSRP is obtained through direct measurement of the physical layer.

For another example, if it is the RSRP of layer 3, the RSRP is obtained through layer 3 filtering after multiple physical layer measurement reports. Exemplarily, the filtering method satisfies the following methods:

_Fn = (1-α)Fn _-1 + _αMn ;

Wherein, F _n is the output of the n-th filter, correspondingly F _n-1 is the output of the n-1 filter, and M _n is the RSRP value reported by the physical layer to layer 3 before the n-th filter. In addition, F ₀ =M ₁ , to ensure that the first filtering output is equal to the value reported by the physical layer.

Generally speaking, the first RSRP threshold is higher than the second RSRP threshold, so the behavior of the terminal device is that the RSRP is higher than the first RSRP threshold, do not perform RRM, and use SRS; between the first RSRP threshold and the second RSRP threshold, do RRM, use SRS; below the second RSRP threshold, do RRM, cannot use SRS, need to access the network to request to update SRS or request to use SRS configuration to send SRS.

After sending the SRS in step S105, the terminal device completes power-off after a time of power consumption ramp down, and returns to the standby mode with extremely low power consumption.

In the above process, due to the poor stability of the internal clock of the terminal device and drift, the terminal device needs to wake up (that is, ramp up) every time to complete time-frequency synchronization. At the same time, since the TRS position is more flexible than the SSB position, it can be configured in the time slot where the SRS is located (or one or two time slots before the time slot where the SRS is located), as shown in Figure 5, the time slot where the time domain position of the SRS is sent is time Slot 3, the time domain location for receiving the TRS may be at least one of slot 1, slot 2, and slot 3. Therefore, as shown in FIG. 4 , the TRS-based synchronization of the terminal device and the overall duration of the SRS transmission can be very short, for example, less than 1 ms, so that the power consumption of the terminal device can be reduced.

A specific example of implementation mode 1 is described in FIG. 6 and FIG. 7 .

In the scenario shown in Fig. 6, there are 9 cells, marked as C1-C9. Among them, C1-C6 sends TRS1, and C5-C9 sends TRS2 (TRS1 is different from TRS2). Note that C5 and C6 are located at the border and send TRS1 and TRS2 at the same time. The sending mode of TRS1 may be SFN, that is, C1-C6 use the same time-frequency resource to send the same TRS1. The sending method of TRS2 is also SFN, that is, C5-C9 use the same time-frequency resource to send the same TRS2.

The moving direction of the terminal is depicted by the dotted line in FIG. 6 . When the terminal releases (releases) the connection from the network, it may receive configuration information from the C1 cell, and the configuration information includes the configuration of TRS1 and the configuration of SRS1 corresponding to TRS1.

At the beginning, the terminal is surrounded by C1-C6, the RSRP of TRS1 is very high, higher than the first threshold, the terminal does not need to perform (or skip) RRM measurement (as shown by arrow 701 in Figure 7), and the corresponding The configuration of SRS1 can be used, so that the terminal can send SRS1 corresponding to the TRS (shown by arrow 704 in FIG. 7 ).

Afterwards, as the terminal moves, the terminal moves out of the encirclement of C1-C5, and the RSRP of TRS1 gradually decreases. When it is lower than the first threshold (but higher than the second threshold), the terminal needs to start RRM measurement (as shown by the arrow in Figure 7 702), that is, based on the SIB configuration of C1, the same-frequency and different-frequency adjacent cell configuration measures the SSB or CSI-RS of the adjacent cell, and performs cell reselection based on the cell reselection criteria of the SIB configuration of C1; if the terminal is based on the cell To reside in a new cell selected by the reselection criteria, the terminal needs to measure the SSB or CSI-RS of the adjacent cell based on the same-frequency and inter-frequency adjacent cell configurations based on the SIB configuration of the new cell to reside on, and to measure the SSB or CSI-RS based on the SIB of the new cell to reside on The configured cell reselection criteria further perform cell reselection, but the configuration of SRS1 corresponding to TRS1 can continue to be used (as shown by arrow 704 in FIG. 7 ).

Optionally, if the terminal determines that the configuration of SRS1 corresponding to TRS1 also includes a list of cells applicable to SRS, the terminal also needs to determine whether the cell currently camped on is in the list of cells applicable to SRS. If it is not in the SRS resource, it cannot be used.

Afterwards, as the terminal moves, the RSRP of TRS1 of the terminal drops below the second threshold. At this time, the terminal still needs to execute RRM (as shown by arrow 702 in FIG. 7 ), and the SRS resource cannot be used at the same time. In order to use the SRS resource, the terminal can initiate an access request to the cell where it resides to update the SRS or request to continue using the SRS configuration.

Optionally, when the terminal can release the connection from any cell from C6 to C9, the terminal device obtains configuration information from any cell from C6 to C9, and the configuration information includes the configuration of TRS2 and the configuration of SRS2 corresponding to TRS2.

As the terminal moves further, when the terminal moves within the service range provided by C6-C9, the terminal device may receive TRS2 and skip RRM measurement (as shown by arrow 703 in FIG. 7 ). In addition, the terminal may also send an SRS corresponding to TRS2 (as shown by arrow 705 in FIG. 7 ).

It can be seen from the above that when the RSRP of TRS1 is lower than the first threshold, the terminal starts to perform RRM measurement, so that when the RSRP of TRS1 drops below the second threshold, the terminal has already accumulated a part of the measurement and determined a suitable cell to reside in. In this way, an access request can be quickly initiated to the network side.

Optionally, if the first RSRP threshold is equal to the second RSRP threshold, when the terminal starts RRM measurement, the SRS is already unusable. Since it takes time for RRM measurement to determine a suitable cell to camp on, during this period, the terminal cannot send SRS. It will affect the transmission of SRS to a certain extent, and then affect the positioning performance.

Optionally, if the first RSRP threshold is less than the second RSRP threshold, when the terminal SRS cannot be used, it does not need to start RRM measurement for cell reselection. At this time, the terminal can decide whether to ignore the first RSRP for RRM/cell reselection. That is, the first RSRP threshold is not applicable.

Optionally, in the first implementation above, the terminal sends SRS (including SRS1 or SRS2), follows the downlink timing obtained by TRS (including TRS1 or TRS2), the timing advance (time advance, TA) of serving cell configuration/update, and The transmission power of the SRS is determined based on the configured path loss reference signal.

It can be seen from the implementation mode 1 that the terminal starts RRM based on the RSRP of the TRS and judges whether the SRS is available, which can reduce unnecessary RRM measurements and reduce terminal power consumption. At the same time, when the RSRP of the TRS is lower than a certain value, the RRM measurement starts, which can ensure that the terminal can quickly access the cell when the SRS is unavailable.

Implementation manner 2, the number of downlink reference signal sets included in the at least one downlink reference signal set is n, where n is an integer greater than 1.

It should be understood that, as described in the foregoing step S101, the number of at least one downlink reference signal set configured in the first configuration information may be n. At this time, the first configuration information may be configuration information corresponding to n independent CSI-RS resources, or configuration information corresponding to n CSI-RS resource sets configured as TRS (for example, each configured as TRS The CSI-RS resource set can include 2 CSI-RS resources in the same time slot, or 4 CSI-RS resources in two adjacent time slots), or n can include one or more The configuration information corresponding to the CSI resource configuration of the CSI-RS resource set configured as TRS (for example, each CSI resource configuration including one or more CSI-RS resource sets configured as TRS corresponds to the CSI-ResourceConfig IE in the 38.331 standard document described implementation).

Optionally, in the embodiment of the present application, the measurement result corresponding to a certain downlink reference signal set (a primary reference signal set or a certain secondary reference signal set or other reference signal sets) may be implemented in multiple manners. For example, when the downlink reference signal set includes one downlink reference signal, the measurement result corresponding to the downlink reference signal set is the measurement result of the one downlink reference signal. For another example, when the number of downlink reference signals included in the downlink reference signal set is multiple, the measurement result corresponding to the downlink reference signal set is the maximum value (or average value, or the average of partial measurements above a certain threshold, etc.).

Specifically, at least one set of downlink reference signals is used for one or more cells, and when the terminal device resides in the one or more cells, the terminal device may base on one or more downlink reference signal sets contained in the at least one set of downlink reference signals The set of reference signals realizes time-frequency synchronization.

In addition, the at least one downlink reference signal set includes a primary reference signal set and a secondary reference signal set, where the number of reference signals contained in the secondary reference signal set is n-1; the terminal device in step S103 based on the at least one downlink The process of measuring the reference signal set to obtain the first measurement value may specifically include: the terminal device measures the primary reference signal set to obtain a second measurement value; the terminal device determines the first measurement value based on the second measurement value .

Optionally, the number of reference signals included in the primary reference signal set is 1 or p (p is an integer greater than 1).

Specifically, when at least one downlink reference signal set includes n downlink reference signal sets, the n downlink reference signal sets include one primary reference signal set and one or more secondary reference signal sets. Wherein, in step S103, in the process of measuring the n downlink reference signal sets, the terminal device may preferentially measure the primary reference signal set, so as to obtain the second measurement value, and then based on the second measurement value, the terminal device The first measured value is determined.

Optionally, in step S103 of the terminal device, the terminal device determining the first measurement value based on the second measurement value includes: when the second measurement value is greater than a third threshold, the terminal device determines the second measurement value is the first measurement value; the terminal device determines to skip the measurement of the secondary reference signal set. Specifically, in the process of measuring the n downlink reference signal sets, the terminal device may preferentially measure the primary reference signal set, and when the second measurement value corresponding to the primary reference signal set is greater than the third threshold, the terminal device will The second measurement value corresponding to the primary reference signal set is determined as the first measurement value. In other words, when the second measurement value corresponding to the primary reference signal set is greater than the third threshold, the terminal device determines that the cell where the terminal device is camped on is located in one or more cells corresponding to the primary reference signal set. Thereafter, the terminal device does not need to measure other reference signals (ie, secondary reference signal sets) in the n downlink reference signal sets except the primary reference signal set, which can further save power consumption of the terminal device.

As a possible implementation manner, in the above implementation process of the terminal device, the process for the terminal device to determine the first measurement value based on the second measurement value specifically includes: when the second measurement value is less than the third threshold, the terminal The device measures the secondary reference signal set to obtain a third measurement value, where the number of measurement values included in the third measurement value is p, where p is an integer greater than 0 and less than or equal to n-1; the terminal device The first measured value is determined based on the second measured value and the third measured value.

Specifically, in the process of measuring the n downlink reference signal sets, the terminal device may preferentially measure the primary reference signal set, and when the second measurement value corresponding to the primary reference signal set is smaller than the third threshold, the terminal device The first measurement value is determined based on the second measurement value and a third measurement value corresponding to the (at least one) secondary reference signal set. So that when the second measurement value corresponding to the primary reference signal set is smaller than the third threshold, the terminal device may determine the first measurement value based on the third measurement value corresponding to the secondary reference signal set, and when the third measurement value is smaller than the third threshold In a large case, it is possible to make the terminal device skip RRM measurement, thereby reducing the power consumption of the terminal device.

Further, the process of determining the first measured value by the terminal device based on the second measured value and the third measured value may have multiple implementation manners, which will be described in detail below,

For example, the process for the terminal device to determine the first measured value based on the second measured value and the third measured value includes: the terminal device determines a measured value greater than a third threshold among the third measured values as the first measured value; the terminal The device updates the secondary reference signal set corresponding to the measurement value greater than the third threshold in the third measurement value to the primary reference signal set.

Specifically, in the process of measuring the n downlink reference signal sets, the terminal device may preferentially measure the primary reference signal set, and when the second measurement value corresponding to the primary reference signal set is smaller than the third threshold, the terminal device will A third measurement value corresponding to a secondary reference signal set corresponding to a measurement value greater than a third threshold in the secondary reference signal set is determined as the first measurement value. In other words, when the first measurement value of the primary reference signal set is less than the third threshold and a certain reference signal in the secondary reference signal set is greater than the third threshold, the terminal device determines that the cell where the terminal device is camped on is located in the secondary reference signal set corresponding to one or more cells. Thereafter, the terminal device updates the first reference signal to the primary reference signal set, so as to implement a low power consumption positioning process based on the updated primary reference signal set.

Optionally, before step S103, the method further includes that the terminal device receives a third threshold sent from the network device. Wherein, the third threshold may be carried in the same message as the first configuration information sent by the network device in step S101. Alternatively, the third threshold may be carried in a different message from the first configuration information sent by the network device in step S101, which is not limited here.

Optionally, the third threshold is preconfigured on the terminal device.

As another example, the process for the terminal device to determine the first measured value based on the second measured value and the third measured value includes:

Optionally, the fourth threshold is smaller than the third threshold.

Optionally, the fourth threshold is greater than the third threshold.

Optionally, the fourth threshold is equal to the third threshold.

Optionally, before step S103, the method further includes that the terminal device receives a fourth threshold sent from the network device. Wherein, the fourth threshold may be carried in the same message as the first configuration information sent by the network device in step S101. Alternatively, the fourth threshold may be carried in a different message from the first configuration information sent by the network device in step S101, which is not limited here.

Optionally, the fourth threshold is preconfigured on the terminal device.

Furthermore, the above approach can be expressed as:

Specifically, when the terminal device is measuring the n downlink reference signal sets, the terminal device can determine the first measurement value in step S103 in the above-mentioned various ways, so as to improve the flexibility of the implementation of the solution.

In a possible implementation manner, the third threshold is greater than the first threshold. Specifically, the third threshold may be greater than the first threshold, so that the terminal device tries to perform measurement of at least one downlink reference signal set to obtain time-frequency synchronization without performing RRM measurement.

Optionally, the third threshold is less than or equal to the first threshold.

Optionally, the third threshold is greater than the second threshold. Wherein, the second threshold may be greater than the third threshold, so that the terminal device tries to perform the measurement of at least one downlink reference signal set to send the SRS without performing the process of requesting the network device to update the SRS configuration information.

Implementation mode 2 will be described in detail below with reference to the implementation examples shown in FIG. 4 and FIG. 5 . For the convenience of description, in the following example, the downlink reference signal contained in at least one downlink reference signal set is 2 TRS, and the first measurement value is RSRP (correspondingly, the first threshold is the first RSPR threshold, and the second threshold is the first RSPR threshold. Two RSPR thresholds) are illustrated as an example.

In the second implementation manner, after receiving the first configuration information in step S101, the terminal device may enter a low power consumption standby mode (for example, INACTIVE state or IDLE state). Thereafter, the terminal device is in the low-power standby mode, corresponding to Figure 4 (the height of the bar graph shown in Figure 4 indicates the power consumption, that is, the higher the height, the higher the power consumption, and the lower the height, the lower the power consumption) In the deep sleep state shown, when the periodic SRS is about to be sent, the extremely low power internal clock provides rough timing to allow the terminal device to wake up in advance. After the power consumption ramps up, the terminal device completes power-on and software and program loading, opens the radio frequency channel and receives TRS in step S102 to complete time-frequency synchronization.

The terminal measures the RSRP of the primary TRS. When the RSRP of the primary TRS is higher than the third RSRP threshold, the terminal does not need to measure other TRSs; when the RSRP of the primary TRS is lower than the third RSRP threshold, the terminal needs to measure other TRSs. Optionally, when the terminal detects that the RSRP of a non-primary TRS is higher than the third RSRP threshold, the terminal updates the TRS as the primary TRS, that is, no other TRS needs to be measured. The present invention does not limit how the terminal measures other TRSs. The general method can be as follows: the terminal measures the first N sets of multiple TRS terminals preferentially according to the order of multiple sets of TRS configurations, where N is the maximum number of TRS sets supported by the terminal; or the terminal measures the first M sets of When the measurement confirms that the RSRPs are all lower than the third RSRP threshold, the current M+1th set is measured first.

The TRS RSRP hereinafter refers to the maximum value of RSRPs of all TRSs measured by the terminal or the average value of all RSRPs higher than a certain RSRP preset value. For example, when the terminal only measures the main TRS, the maximum value of the RSRP of the TRS is the RSRP of the main TRS; when the terminal measures the main TRS and several other TRS, the RSRP of the TRS is the maximum value of the RSRP including the main TRS and other TRS or The average value of RSRP above a certain RSRP threshold.

If the RSRP of the TRS is higher than the second RSRP threshold, the terminal can continue to use the TRS associated with the TRS with the highest RSRP among the TRSs corresponding to the RSRP of the determined TRS, and the SRS configuration associated with any one of the multiple TRSs corresponding to the average RSRP to send SRS.

If the RSRP of the TRS is lower than the second RSRP threshold, the terminal cannot continue to use any SRS configuration to send SRS. If the terminal still needs to send SRS, it can initiate access to the cell where it resides, request to update SRS or request to use SRS configuration to send SRS.

_Fn = (1-α)Fn _-1 + _αMn ;

A specific example of the second implementation is described in FIG. 6 and FIG. 8 .

The moving direction of the terminal is depicted by the dotted line in FIG. 6 . When the terminal releases (releases) the connection from the network, it may receive the configuration of TRS1 and SRS1 and the configuration of TRS2 and SRS2 from the C1 cell. That is, the terminal receives the configuration of TRS1 and TRS2, and the configuration of SRS1 and SRS2, wherein TRS1 is associated with SRS1, and TRS2 is associated with SRS2. Among them, TRS1 is the main TRS.

At the beginning, the terminal receives TRS1 surrounded by C1-C6 (as shown by arrow 801 in Figure 8), the RSRP of TRS1 is very high, higher than the first threshold and the third threshold, the terminal does not need to perform RRM, nor does it need to measure TRS2 , and the SRS1 configuration can be used at the same time (as shown by arrow 802 in FIG. 8 ).

After that, as the terminal moves, the terminal moves out of the encirclement of C1-C5, and the RSRP of TRS1 gradually decreases. When it is lower than the third RSRP threshold (but higher than the first and second RSRP thresholds), the terminal needs to start measuring TRS1 and TRS2 (As shown by arrow 802 in Figure 8), at this time, the TRS RSRP (based on TRS1 or TRS2 or the average of both) is higher than the first and second thresholds, the terminal does not need to do RRM, and the configuration of SRS1 can be used (as shown in Figure 8 shown by arrow 804). When the RSRP of TRS1 is higher than the RSRP of TRS2, the terminal can use SRS1 (as shown by arrow 804 in FIG. 8 ); otherwise, it can use SRS2 (as shown by arrow 805 in FIG. 8 ).

After that, as the terminal moves, the RSRP of TRS2 of the terminal is higher than the third RSRP threshold (higher than the first and second RSRP thresholds at the same time), at this time, the terminal can continue to measure TRS1+TRS2 at the same time (as shown by arrow 802 in Figure 8 ), or set TRS2 as the main TRS, and no longer measure TRS1 (as shown by arrow 803 in FIG. 8 ). The terminal uses SRS2 (shown by arrow 805 in FIG. 8 ), and does not need to perform RRM.

In the above process, it is generally required that the third RSRP threshold is higher than the first RSRP threshold and higher than the second RSRP threshold, so that the terminal tries to perform TRS measurement (and synchronization) without entering RRM.

Optionally, if the third RSRP threshold is equal to the first RSRP threshold, the terminal needs to start other TRS measurement and RRM measurement at the same time, and the power consumption of the terminal will increase.

Optionally, if the third RSRP threshold is lower than the first RSRP threshold, the terminal needs to start RRM before measuring other TRSs. At this time, the terminal can decide whether to ignore the third RSRP threshold and perform other TRS measurements. Three RSRP thresholds do not apply.

In addition, under the configuration of multiple sets of TRS, when the RSRP of the TRS (calculated based on the RSRP of multiple measured TRSs) is lower than the first threshold, the terminal starts to perform RRM, so that the RSRP of the terminal in TRS1/2 drops to the lowest At the second threshold, a part of measurements has been accumulated and a suitable cell is determined to reside in, so that an access request can be quickly initiated to the network side.

Optionally, in the second implementation above, the terminal sends SRS (including SRS1 or SRS2), follows the downlink timing acquired by TRS (including TRS1 or TRS2), the timing advance (time advance, TA) of serving cell configuration/update, and The transmission power of the SRS is determined based on the configured path loss reference signal.

It can be seen from the second implementation manner that the terminal uses multiple sets of TRS, one of which is the main TRS, so as to avoid frequent activation of RRM and try to perform TRS-based measurement. Wherein, in the configuration of multiple TRSs, the terminal may preferentially only perform the measurement of the main TRS, so as to reduce the measurement overhead. In addition, the terminal starts RRM based on the RSRP of the TRS and judges whether the SRS is available, which can reduce unnecessary RRM measurements and reduce terminal power consumption. At the same time, when the RSRP of the TRS is lower than a certain value, the RRM measurement starts, which can ensure that the terminal can quickly access the cell when the SRS is unavailable.

Please refer to FIG. 9 , which is a schematic diagram of a communication device provided in this application. The communication device 900 includes a processing unit 901 and a transceiver unit 902 .

In one possible implementation,

The transceiving unit 902 is configured to receive first configuration information from a network device, where the first configuration information is used to configure at least one downlink reference signal set;

The transceiving unit 902 is further configured to receive the at least one downlink reference signal set based on the first configuration information;

The processing unit 901 is configured to perform measurement based on the at least one downlink reference signal set to obtain a first measurement value;

When the first measurement value is greater than the first threshold, the processing unit 901 is further configured to determine to skip radio resource management RRM measurement.

In another possible implementation,

The transceiving unit 902 is configured to receive first configuration information from a network device, where the first configuration information is used to configure a first set of downlink reference signals;

The processing unit 901 is configured to receive the at least one downlink reference signal set based on the first configuration information; the terminal device performs measurement based on the at least one downlink reference signal set to obtain a first measurement value;

The processing unit 901 is configured to determine whether the SRS corresponding to at least one downlink reference signal set is valid based on the first measurement value.

In a possible implementation manner, the at least one downlink reference signal set includes one downlink reference signal set. In other words, the number of downlink references included in at least one downlink reference signal set is one.

In one possible implementation,

The transceiving unit 902 is further configured to receive second configuration information of sounding reference signals from the network device, where the second configuration information is used to configure a first SRS; the first SRS is associated with the at least one downlink reference signal set;

When the first measured value is greater than the second threshold, the transceiving unit 902 is further configured to send the first SRS based on the second configuration information.

In one possible implementation,

When the first measured value is less than the second threshold, the processing unit 901 is further configured to stop sending the first SRS.

In a possible implementation manner, the at least one downlink reference signal set includes n downlink reference signal sets, where n is an integer greater than 1. In other words, the number of downlink references included in at least one downlink reference signal set is multiple (that is, n).

In a possible implementation manner, the transceiving unit 902 is further configured to receive third configuration information from the network device, where the third configuration information is used to configure q SRSs associated with n downlink reference signal sets, wherein, q is less than or equal to n; when the first measured value is greater than the second threshold, the transceiver unit 902 is further configured to send a target SRS based on the third configuration information, where the target SRS is associated with n downlink reference signals among the q SRSs The SRS of the downlink reference signal set corresponding to the first measurement value in the set.

In a possible implementation manner, the processing unit 901 is further configured to: when the first measurement value is smaller than the second threshold, the terminal device stops sending the target SRS.

In a possible implementation manner, the number q of SRSs configured in the third configuration information may include various implementation manners, including:

q is 1; or,

In a possible implementation manner, the second threshold is smaller than the first threshold.

In one possible implementation,

When the first measurement value is less than the first threshold, the processing unit 901 is further configured to perform the RRM measurement.

In one possible implementation,

The first configuration information is carried in system information; or,

In one possible implementation,

In a possible implementation manner, the at least one downlink reference signal set includes one downlink reference signal set.

In a possible implementation manner, the number of downlink reference signal sets included in the at least one downlink reference signal set is n, where n is an integer greater than 1.

In a possible implementation, the at least one downlink reference signal set includes a primary reference signal set and a secondary reference signal set, where the number of reference signals included in the secondary reference signal set is n-1;

The processing unit 901 is configured to perform measurement based on the at least one downlink reference signal set, and obtaining the first measurement value includes:

The processing unit 901 is configured to measure the main reference signal set to obtain a second measurement value;

The processing unit 901 is configured to determine the first measurement value based on the second measurement value.

In a possible implementation manner, the processing unit 901 is configured to determine the first measurement value based on the second measurement value includes:

When the second measured value is greater than a third threshold, the processing unit 901 is configured to determine the second measured value as the first measured value;

The processing unit 901 is configured to determine to skip the measurement of the secondary reference signal set.

When the second measurement value is less than a third threshold, the processing unit 901 is configured to measure the secondary reference signal set to obtain a third measurement value, where the number of measurement values included in the third measurement value is p, p is an integer greater than 0 and less than or equal to n-1;

The processing unit 901 is configured to determine the first measurement value based on the second measurement value and the third measurement value.

In a possible implementation manner, the processing unit is configured to determine the first measurement value based on the second measurement value and the third measurement value includes:

The processing unit 901 is configured to determine, among the third measured values, a measured value greater than the third threshold as the first measured value;

The processing unit 901 is configured to update the secondary reference signal set corresponding to the measurement value greater than the third threshold in the third measurement value to the primary reference signal set.

In a possible implementation manner, the processing unit is configured to determine the first measurement value based on the second measurement value and the third measurement value, including:

The processing unit 901 is configured to determine that the first measurement value is the maximum value of the second measurement value and the third measurement value; or,

The processing unit 901 is configured to determine that the first measurement value is an average value of the second measurement value and the third measurement value; or,

The processing unit 901 is configured to determine that the first measurement value is an average value of m measurement values in the second measurement value and the third measurement value, and the m measurement values are all greater than a fourth threshold, and m is an integer smaller than n; or

The processing unit 901 is configured to determine that the first measurement value is the maximum value of k measurement values among the second measurement value and the third measurement value, where k is an integer less than n.

In one possible implementation,

In a possible implementation manner, the third threshold is greater than the first threshold.

In one possible implementation,

Optionally, the first measured value is RSRP.

In a possible implementation manner, the processing unit is used to determine to skip the RRM measurement includes:

In one possible implementation,

In a possible implementation manner, the first configuration information includes at least one of the following:

CSI-RS resource configuration information; or,

CSI-RS resource set configuration information configured as TRS; or,

In a possible implementation manner, the first configuration information includes at least one piece of configuration information, and the at least one piece of configuration information is in one-to-one correspondence with the at least one downlink reference signal set;

CSI-RS resource configuration information; or,

CSI-RS resource set configuration information configured as TRS; or,

It should be noted that the communication device 900 can also be used to execute the implementation process corresponding to any one of the foregoing method embodiments, and achieve corresponding beneficial effects. For details, reference can be made to the description in the foregoing embodiments, which will not be repeated here.

Please refer to FIG. 10 , which provides the communication device involved in the above-mentioned embodiment for the embodiment of the present application. The communication device may specifically be the terminal device in the above-mentioned embodiment, where a possible logical structure of the communication device 1000 Schematically, the communication device 1000 may include but not limited to at least one processor 1001 and a communication port 1002 . Further optionally, the device may further include at least one of a memory 1003 and a bus 1004. In the embodiment of the present application, the at least one processor 1001 is configured to control and process actions of the communication device 1000.

In addition, the processor 1001 may be a central processing unit, a general processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor can also be a combination that realizes computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like. Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

It should be noted that the communication device shown in FIG. 10 can be specifically used to implement other steps implemented by the terminal device in the foregoing corresponding method embodiments, and realize the corresponding technical effects of the terminal device. The specific implementation of the communication device shown in FIG. 10 is as follows: Reference can be made to the descriptions in the foregoing method embodiments, and details will not be repeated here.

The embodiment of the present application also provides a computer-readable storage medium that stores one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes the method described in the corresponding implementation manner of the terminal device in the foregoing embodiments. method.

Embodiments of the present application also provide a computer-readable storage medium that stores one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor performs the implementation described in the corresponding implementation manner of the network device in the foregoing embodiments. method.

The embodiment of the present application also provides a computer program product (or computer program) storing one or more computers. When the computer program product is executed by the processor, the processor executes the method described in the corresponding implementation manner of the terminal device above. .

The embodiment of the present application also provides a computer program product storing one or more computers. When the computer program product is executed by the processor, the processor executes the method described in the corresponding implementation manner of the network device above.

An embodiment of the present application further provides a system-on-a-chip, where the system-on-a-chip includes at least one processor, configured to support a terminal device in implementing the functions involved in the implementation manners corresponding to the foregoing terminal device. Optionally, the chip system further includes an interface circuit, and the interface circuit provides program instructions and/or data for the at least one processor. In a possible design, the system-on-a-chip may further include a memory, and the memory is used for storing necessary program instructions and data of the terminal device. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

An embodiment of the present application further provides a system-on-a-chip, including at least one processor, configured to support a network device to implement the functions involved in the implementation manner corresponding to the above-mentioned network device. Optionally, the chip system further includes an interface circuit, and the interface circuit provides program instructions and/or data for the at least one processor. In a possible design, the chip system may further include a memory, and the memory is used for storing necessary program instructions and data of the network device. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

An embodiment of the present application also provides a communication system, where the network system architecture includes the terminal device and the network device in any of the foregoing embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units. If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or part of the contribution to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc., which can store program codes. .

The above is only the specific implementation of the embodiment of the present application, but the scope of protection of the embodiment of the present application is not limited thereto. Anyone familiar with the technical field can easily Any changes or substitutions that come to mind should be covered within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be based on the protection scope of the claims.

Claims

A communication method, characterized in that, comprising:

The terminal device receives first configuration information from the network device, where the first configuration information is used to configure at least one downlink reference signal set;

The terminal device receives the at least one downlink reference signal set based on the first configuration information;

The terminal device performs measurement based on the at least one downlink reference signal set to obtain a first measurement value;

When the first measurement value is greater than the first threshold, the terminal device determines to skip radio resource management RRM measurement.
The method according to claim 1, wherein the at least one downlink reference signal set includes one downlink reference signal set.
The method according to claim 2, further comprising:

The terminal device receives second configuration information from the network device, where the second configuration information is used to configure a first sounding reference signal SRS associated with the at least one downlink reference signal set;

When the first measurement value is greater than a second threshold, the terminal device sends the first SRS based on the second configuration information.
The method according to claim 3, further comprising:

When the first measurement value is smaller than the second threshold, the terminal device stops sending the first SRS.
The method according to claim 1, wherein the at least one downlink reference signal set includes n downlink reference signal sets, wherein the n is an integer greater than 1.
The method according to claim 5, wherein the method further comprises:

The terminal device receives third configuration information from the network device, the third configuration information is used to configure q SRSs associated with the n downlink reference signal sets, where the q is less than or equal to the n ;

When the first measurement value is greater than the second threshold, the terminal device sends a target SRS based on the third configuration information, where the target SRS is one of the q SRSs associated with the n downlink reference signal sets The SRS of the downlink reference signal set corresponding to the first measurement value.
The method according to claim 6, characterized in that,

said q is 1; or,

The q is equal to the n, wherein, the q SRSs are in one-to-one correspondence with the n downlink reference signal sets; or,

The q is greater than 1 and the q is smaller than the n, wherein each SRS included in the q SRSs corresponds to one or more downlink reference signal sets in the n downlink reference signal sets.
The method according to claim 6 or 7, characterized in that the method further comprises:

When the first measurement value is smaller than the second threshold, the terminal device stops sending the target SRS.
The method according to any one of claims 5 to 8, wherein the at least one downlink reference signal set includes a primary reference signal set and a secondary reference signal set, wherein the reference signals included in the secondary reference signal set The number of sets is n-1;

The terminal device performs measurement based on the at least one downlink reference signal set, and obtaining the first measurement value includes:

The terminal device measures the primary reference signal set to obtain a second measurement value;

The terminal device determines the first measurement value based on the second measurement value.
The method according to claim 9, wherein the terminal device determining the first measurement value based on the second measurement value comprises:

When the second measured value is greater than a third threshold, the terminal device determines the second measured value as the first measured value;

The terminal device determines to skip the measurement of the secondary reference signal set.
According to the method according to claim 9 or 10, the terminal device determining the first measurement value based on the second measurement value comprises:

When the second measurement value is less than a third threshold, the terminal device measures the secondary reference signal set to obtain a third measurement value, where the number of measurement values included in the third measurement value is p , the p is an integer greater than 0 and less than or equal to n-1;

The terminal device determines the first measurement value based on the second measurement value and the third measurement value.
The method according to claim 11, wherein the terminal device determines the first measured value based on the second measured value and the third measured value, comprising:

determining, by the terminal device, a measurement value greater than the third threshold among the third measurement values as the first measurement value;

The terminal device updates the secondary reference signal set corresponding to the measurement value greater than the third threshold in the third measurement value to the primary reference signal set.
The method according to claim 11 or 12, wherein the terminal device determines the first measured value based on the second measured value and the third measured value, comprising:

The terminal device determines that the first measurement value is the maximum value of the second measurement value and the third measurement value; or,

The terminal device determines that the first measurement value is an average value of the second measurement value and the third measurement value; or,

The terminal device determines that the first measurement value is an average value of m measurement values among the second measurement value and the third measurement value, the m measurement values are all greater than a fourth threshold, and the m is an integer less than said n; or

The terminal device determines that the first measurement value is the maximum value of k measurement values among the second measurement value and the third measurement value, and the k is an integer smaller than the n.
The method according to any one of claims 5 to 13, characterized in that,

The at least one downlink reference signal set corresponds to n measured values, and the first measured value is the maximum value among the n measured values; or,

The at least one downlink reference signal set corresponds to n measured values, and the first measured value is an average value of the n measured values; or,

The partial reference signals in the at least one downlink reference signal set correspond to m measured values, the m measured values are all greater than a fourth threshold, and the first measured value is an average value of the m measured values, wherein , said m is an integer less than said n; or,

The partial reference signals in the at least one downlink reference signal set correspond to k measured values, and the first measured value is a maximum value among the k measured values, where the k is an integer smaller than the n.
The method according to any one of claims 1 to 14, wherein the method further comprises:

When the first measurement value is smaller than the first threshold, the terminal device performs the RRM measurement.
The method according to any one of claims 1 to 15, characterized in that,

The first configuration information is carried in system information; or,

The first configuration information is carried in a radio resource control release RRCRelease message.
The method according to any one of claims 1 to 16, characterized in that,

The downlink reference signal contained in the downlink reference signal set is a channel state information reference signal CSI-RS; or,

The downlink reference signal included in the downlink reference signal set is a tracking reference signal TRS.
The method according to any one of claims 10 to 17, wherein the third threshold is greater than the first threshold.
The method according to any one of claims 1 to 18, characterized in that,

The first measurement value includes at least one of a reference signal received power RSRP and a reference signal received quality RSRQ.
The method according to any one of claims 1 to 19, wherein the determining by the terminal device to skip the RRM measurement comprises:

The terminal device determines to skip the RRM measurement based on the first information, and the first information is used to indicate that the terminal device is not allowed to determine whether to perform intra-frequency cell measurement based on the measurement result of the synchronization signal block SSB of the serving cell.
The method of claim 20, wherein

The first information is also used to indicate that the terminal device is not allowed to determine whether to perform inter-frequency or inter-RAT measurement based on the priority of inter-frequency or inter-radio access technology RAT and the measurement result of the SSB of the serving cell.
The method according to any one of claims 1 to 21, characterized in that,

The RRM measurement includes at least one of intra-frequency cell measurement, inter-frequency cell measurement, and inter-RAT measurement.
The method according to any one of claims 1 to 22, wherein the first configuration information includes at least one of the following:

CSI-RS resource configuration information; or,

CSI-RS resource set configuration information configured as TRS; or,

CSI resource configuration information of one or more CSI-RS resource sets configured as TRS is configured.
A communication device, characterized by comprising a transceiver unit and a processing unit;

The transceiver unit and the processing unit are configured to execute the method according to any one of claims 1 to 23.
A communication device, characterized by comprising:

processor and memory;

The memory is used to store program instructions;

The processor is configured to execute the program instructions to enable the communication device to implement the method according to any one of claims 1-23.
A computer program product comprising instructions, characterized in that, when the computer program product is run on a computer, it causes the computer to execute the method according to any one of claims 1 to 23.
A computer-readable storage medium, the computer-readable storage medium is used to store program instructions, characterized in that, when the program instructions are run on a computer, the computer is made to execute any one of claims 1 to 23. method described in the item.