Reference signal resource measurement method and communication apparatus

Abstract

The present application provides a reference signal resource measurement method and a communication apparatus. The method comprises: a terminal device receiving first signaling for instructing the terminal device to hand over from a serving cell to a first cell; then on the basis of a first condition, determining whether to measure a reference signal resource before receiving the first signaling or after receiving the first signaling, wherein the first condition comprises the terminal device supporting acquisition and / or reporting of a channel measurement result of a candidate cell; and sending the channel measurement result obtained by means of measurement to the first cell. It can be understood that the candidate cell includes the first cell. By using the method, the terminal device can perform reference signal resource measurement and / or reporting of the channel measurement result before cell handover or after cell handover, thereby taking into account both system transmission performance and the measurement complexity of the terminal device.

Description

A method for measuring reference signal resources and a communication device

[0001] This application claims priority to Chinese Patent Application No. 202510138746.7, filed on February 7, 2025, entitled "A Method for Measuring Reference Signal Resources and a Communication Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a method for measuring reference signal resources and a communication device. Background Technology

[0003] In a wireless communication system, an access network device can configure reference signal resources (RSRs) for one or more candidate cells for a terminal device. The terminal device measures the RRSs of these candidate cells. The terminal device can then report the measurement results of the RRSs of the candidate cells. The measurement results for each candidate cell may include a RRS index and corresponding signal strength information (e.g., reference signal receiving power (RSRP)). Therefore, the access network device can determine whether the terminal device should perform a cell handover and, if so, which candidate cell to hand over to, based on the measurement results reported by the terminal device.

[0004] In one example, the system supports obtaining RSRP and other channel state information (CSI) information through channel state information reference signal (CSI-RS) measurement of candidate cells. To accommodate system transmission performance and the measurement complexity of terminal equipment, CSI acquisition based on CSI-RS measurement can be performed before or after cell handover. However, currently, there is no solution designed to accommodate both scenarios, which is detrimental to the reliability and efficiency of data transmission. Summary of the Invention

[0005] This application provides a method and communication device for measuring reference signal resources. The terminal device can perform the measurement of reference signal resources and / or report the channel measurement results before or after cell handover, which is compatible with system transmission performance and the measurement complexity of the terminal device.

[0006] Firstly, a method for measuring reference signal resources is provided. This method can be applied to the terminal side, for example, a terminal device or a communication module and / or computing module within the terminal device, or circuits or chips in the terminal device responsible for communication functions (such as modem chips, also known as baseband chips, or system-on-chip (SoC) chips or system-in-package (SIP) chips containing modem cores), or circuits or chips in the terminal device responsible for communication and / or computing functions (such as graphics processing units (GPUs), artificial intelligence (AI) processors, or application-specific integrated circuits (ASICs)), or it can also be a logic module or software that can implement all or part of the terminal functions. The method is described using an example of its application to a terminal device.

[0007] In this method, the terminal device receives a first signaling instruction, which instructs the terminal device to switch from the serving cell to a first cell; determines the measurement timing of reference signal resources according to a first condition, the first condition including the terminal device's support for acquiring and / or reporting channel measurement results of candidate cells, the measurement timing being (or alternatively, indicating) that the terminal device measures the reference signal resources before or after receiving the first signaling instruction, the candidate cells including the first cell; and sends channel measurement results to the first cell, the channel measurement results being obtained based on the measurement timing of the reference signal resources.

[0008] In this application, the reference signal is carried in the reference signal resource, and the terms reference signal and reference signal resource can be used interchangeably.

[0009] Using the above method, the terminal device determines whether to measure the reference signal resources before or after receiving the first signaling, based on a first condition, to obtain channel measurement results. It is understood that, if the terminal device is located in the serving cell and determines to measure the reference signal resources before receiving the first signaling based on the first condition, then the terminal device measures the reference signal resources of the candidate cell before receiving the first signaling to obtain channel measurement results and sends the channel measurement results to the first cell; if the terminal device determines to measure the reference signal resources after receiving the first signaling based on the first condition, then the terminal device measures the reference signal resources of the candidate cell after receiving the first signaling to obtain channel measurement results and sends the channel measurement results to the first cell. This method is compatible with the terminal device performing reference signal resource measurements and / or reporting channel measurement results before or after cell handover, improving system transmission performance while reducing the measurement complexity of the terminal device, and also contributing to improved data transmission reliability and efficiency.

[0010] In some implementations of the first aspect, the reference signal resource is the reference signal resource of the candidate cell, and the channel measurement result is the channel measurement result of the candidate cell.

[0011] Using the above method, the reference signal resources measured by the terminal device are the reference signal resources of the candidate cells, and the channel measurement results obtained by the terminal device are the channel measurement results of the candidate cells. For example, if the terminal device determines to measure the reference signal resources before receiving the first signaling, it can measure the reference signal resources of one or more candidate cells, correspondingly obtaining the channel measurement results of one or more candidate cells. After receiving the cell handover signaling, it can directly report the channel measurement results without further measurement, thus reducing the cell handover latency. For example, if the terminal device determines to measure the reference signal resources after receiving the first signaling, it can measure the reference signal resources of the first cell (i.e., the target cell) among the candidate cells, correspondingly obtaining the channel measurement results of the first cell, thus reducing the measurement complexity and reporting overhead of the terminal device.

[0012] In some implementations of the first aspect, the method further includes: measuring reference signal resources before receiving the first signaling to obtain channel measurement results; or measuring reference signal resources after receiving the first signaling to obtain channel measurement results.

[0013] Using the above method, the terminal device can measure reference signal resources at different measurement times to obtain channel measurement results. It should be noted that for reference signal resource measurements performed before receiving the first signaling, the terminal device can directly report the channel measurement results after receiving the first signaling, without waiting for the measurement to complete, thus reducing reporting latency and improving overall measurement performance. For reference signal resource measurements performed after receiving the first signaling, the terminal device can measure only the reference signal resources of the first cell and report the channel measurement results of the first cell after receiving the first signaling, reducing the measurement complexity of the terminal device and decreasing signaling overhead.

[0014] In some implementations of the first aspect, the reference signal resource is a periodic reference signal resource. When the reference signal resource is measured after receiving the first signaling, the first condition further includes at least one of the following: the terminal device only supports measuring the reference signal resource after receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource after receiving the first signaling; the terminal device supports measuring the reference signal resource before and after receiving the first signaling; or, the terminal device does not support measuring the reference signal resource before receiving the first signaling.

[0015] Alternatively, the reference signal resource is a periodic reference signal resource. When the first condition further includes at least one of the following, the measurement timing is that the terminal device measures the reference signal resource after receiving the first signaling; wherein, the first condition further includes at least one of the following: the terminal device only supports measuring the reference signal resource after receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource after receiving the first signaling; the terminal device supports measuring the reference signal resource before and after receiving the first signaling; or, the terminal device does not support measuring the reference signal resource before receiving the first signaling.

[0016] It should be noted that the network device instructing or configuring the terminal device to measure the reference signal resources after receiving the first signaling can be described as: the terminal device is instructed or configured to measure the reference signal resources after receiving the first signaling.

[0017] Using the above method, for periodic reference signal resources, the terminal device can measure the reference signal resources after receiving the first signaling, provided that the first condition is met. In this implementation, the terminal device can measure only the reference signal resources of the first cell, which can reduce the measurement complexity of the terminal device and reduce reporting overhead.

[0018] In some implementations of the first aspect, the reference signal resource is a periodic reference signal resource. When the reference signal resource is measured before receiving the first signaling, the first condition further includes at least one of the following: the terminal device supports measuring the reference signal resource before receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource before receiving the first signaling; the terminal device supports measuring the reference signal resource before and after receiving the first signaling; or, the network device does not configure or instruct the terminal device to measure the reference signal resource after receiving the first signaling.

[0019] Alternatively, the reference signal resource is a periodic reference signal resource, and the measurement timing is to measure the reference signal resource before receiving the first signaling when the first condition further includes at least one of the following: the terminal device supports measuring the reference signal resource before receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource before receiving the first signaling; the terminal device supports measuring the reference signal resource before and after receiving the first signaling; or, the network device does not configure or instruct the terminal device to measure the reference signal resource after receiving the first signaling.

[0020] It should be noted that the network device instructing or configuring the terminal device to measure the reference signal resources before receiving the first signaling can be described as: the terminal device is instructed or configured to measure the reference signal resources before receiving the first signaling. The network device not configuring or instructing the terminal device to measure the reference signal resources after receiving the first signaling can be described as: the terminal device is not configured or instructed to measure the reference signal resources after receiving the first signaling.

[0021] Using the above method, for periodic reference signal resources, the terminal device can measure the reference signal resources before receiving the first signaling, provided that the first condition is met. In this implementation, the terminal device can measure the reference signal resources of the candidate cell in advance, obtain the channel measurement results of the candidate cell, and then report the channel measurement results in a timely manner after receiving the first signaling. This can reduce the measurement complexity of the terminal device, reduce the reporting delay, and improve the overall measurement performance.

[0022] In some implementations of the first aspect, the reference signal resource is a semi-persistent reference signal resource. When measuring the reference signal resource after receiving the first signaling, the first condition includes at least one of the following: the terminal device only supports measuring the reference signal resource after receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource after receiving the first signaling; the terminal device supports measuring the reference signal resource both before and after receiving the first signaling; the terminal device does not support measuring the reference signal resource before receiving the first signaling; the terminal device receives a second signaling, which is used to activate the reference signal resource; the terminal device receives the second signaling after receiving the first signaling; the terminal device receives the second signaling before receiving the first signaling; the first signaling contains first information used to trigger the measurement of the reference signal resource; the terminal device receives the second signaling, and the second signaling takes effect after receiving the first signaling; or, the terminal device receives the second signaling, and the second signaling contains second information used to instruct the terminal device to measure the reference signal resource after receiving the first signaling.

[0023] Alternatively, the reference signal resource is a semi-persistent reference signal resource. When the first condition further includes at least one of the following, the measurement timing is after receiving the first signaling; wherein the first condition includes at least one of the following: the terminal device only supports measuring the reference signal resource after receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource after receiving the first signaling; the terminal device supports measuring the reference signal resource both before and after receiving the first signaling; the terminal device does not support measuring the reference signal resource before receiving the first signaling; the terminal device receives a second signaling, which is used to activate the reference signal resource; the terminal device receives the second signaling after receiving the first signaling; the terminal device receives the second signaling before receiving the first signaling; the first signaling contains first information used to trigger the measurement of the reference signal resource; the terminal device receives the second signaling, and the second signaling takes effect after receiving the first signaling; or, the terminal device receives the second signaling, and the second signaling contains second information used to instruct the terminal device to measure the reference signal resource after receiving the first signaling.

[0024] For example, the second signaling may be carried in media / medium access control-control element (MAC CE) signaling, or other signaling.

[0025] Using the above method, for semi-persistent reference signal resources, the terminal device can measure the reference signal resources after receiving the first signaling, provided that the first condition is met. In this implementation, the terminal device can measure only the reference signal resources of the first cell, which can reduce the measurement complexity of the terminal device and reduce reporting overhead.

[0026] In some implementations of the first aspect, the reference signal resource is a semi-persistent reference signal resource. When the reference signal resource is measured before receiving the first signaling, the first condition further includes at least one of the following: the terminal device supports measuring the reference signal resource before receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource before receiving the first signaling; the terminal device supports measuring the reference signal resource both before and after receiving the first signaling; the network device does not configure or instruct the terminal device to measure the reference signal resource after receiving the first signaling; the terminal device receives a second signaling, which is used to activate the reference signal resource; the terminal device receives the second signaling before receiving the first signaling; the terminal device receives the second signaling, and the second signaling takes effect before receiving the first signaling; or, the terminal device receives the second signaling, and the second signaling contains third information, which instructs the terminal device to start measuring the reference signal resource when the second signaling takes effect.

[0027] Alternatively, the reference signal resource is a semi-persistent reference signal resource. When the first condition further includes at least one of the following, the measurement timing is to measure the reference signal resource before receiving the first signaling; wherein the first condition further includes at least one of the following: the terminal device supports measuring the reference signal resource before receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource before receiving the first signaling; the terminal device supports measuring the reference signal resource both before and after receiving the first signaling; the network device does not configure or instruct the terminal device to measure the reference signal resource after receiving the first signaling; the terminal device receives a second signaling, the second signaling being used to activate the reference signal resource; the terminal device receives the second signaling before receiving the first signaling; the terminal device receives the second signaling, and the second signaling takes effect before receiving the first signaling; or, the terminal device receives the second signaling, and the second signaling contains third information, the third information being used to instruct the terminal device to start measuring the reference signal resource when the second signaling takes effect.

[0028] Using the above method, for semi-persistent reference signal resources, the terminal device can measure the reference signal resources before receiving the first signaling, provided that the first condition is met. In this implementation, the terminal device can measure the reference signal resources of the candidate cell in advance, obtain the channel measurement results of the candidate cell, and then report the channel measurement results in a timely manner after receiving the first signaling. This can reduce the measurement complexity of the terminal device, reduce the reporting delay, and improve the overall measurement performance.

[0029] In some implementations of the first aspect, the reference signal resource is a non-periodic reference signal resource. When measuring the reference signal resource after receiving the first signaling, the first condition includes at least one of the following: the terminal device only supports measuring the reference signal resource after receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource after receiving the first signaling; the terminal device supports measuring the reference signal resource both before and after receiving the first signaling; the terminal device does not support measuring the reference signal resource before receiving the first signaling; the terminal device receives a third signaling, which triggers the measurement of the reference signal resource; the terminal device receives the third signaling after receiving the first signaling; the terminal device receives the third signaling before receiving the first signaling; the first signaling contains first information used to trigger the measurement of the reference signal resource; the terminal device receives the third signaling, and the effective time of the third signaling is after receiving the first signaling; or, the terminal device receives the third signaling, and the third signaling contains fourth information used to instruct the terminal device to measure the reference signal resource after receiving the first signaling.

[0030] Alternatively, the reference signal resource is a non-periodic reference signal resource. When the first condition further includes at least one of the following, the measurement timing is after receiving the first signaling. The first condition includes at least one of the following: the terminal device only supports measuring the reference signal resource after receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource after receiving the first signaling; the terminal device supports measuring the reference signal resource both before and after receiving the first signaling; the terminal device does not support measuring the reference signal resource before receiving the first signaling; the terminal device receives a third signaling, which triggers the measurement of the reference signal resource; the terminal device receives the third signaling after receiving the first signaling; the terminal device receives the third signaling before receiving the first signaling; the first signaling contains first information used to trigger the measurement of the reference signal resource; the terminal device receives the third signaling, and the third signaling takes effect after receiving the first signaling; or, the terminal device receives the third signaling, and the third signaling contains fourth information used to instruct the terminal device to measure the reference signal resource after receiving the first signaling.

[0031] Using the above method, for non-periodic reference signal resources, the terminal device can measure the reference signal resources after receiving the first signaling, provided that the first condition is met. In this implementation, the terminal device can measure only the reference signal resources of the first cell, which can reduce the measurement complexity of the terminal device and reduce reporting overhead.

[0032] In some implementations of the first aspect, the reference signal resource is a non-periodic reference signal resource. When the reference signal resource is measured before receiving the first signaling, the first condition further includes at least one of the following: the terminal device supports measuring the reference signal resource before receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource before receiving the first signaling; the terminal device supports measuring the reference signal resource both before and after receiving the first signaling; the network device does not configure or instruct the terminal device to measure the reference signal resource after receiving the first signaling; the terminal device receives a third signaling, which triggers the measurement of the reference signal resource; the terminal device receives the third signaling before receiving the first signaling; the terminal device receives the third signaling, and the effective time of the third signaling is before receiving the first signaling; or, the terminal device receives the third signaling, and the third signaling contains fifth information, which instructs the terminal device to start measuring the reference signal resource when the third signaling takes effect.

[0033] Alternatively, the reference signal resource is a non-periodic reference signal resource. When the first condition further includes at least one of the following, the measurement timing is to measure the reference signal resource before receiving the first signaling; wherein the first condition further includes at least one of the following: the terminal device supports measuring the reference signal resource before receiving the first signaling; the network device instructs or configures the terminal device to measure the reference signal resource before receiving the first signaling; the terminal device supports measuring the reference signal resource both before and after receiving the first signaling; the network device does not configure or instruct the terminal device to measure the reference signal resource after receiving the first signaling; the terminal device receives a third signaling, which triggers the measurement of the reference signal resource; the terminal device receives the third signaling before receiving the first signaling; the terminal device receives the third signaling, and the effective time of the third signaling is before receiving the first signaling; or, the terminal device receives the third signaling, and the third signaling contains fifth information, which instructs the terminal device to start measuring the reference signal resource when the third signaling takes effect.

[0034] Using the above method, for non-periodic reference signal resources, the terminal device can measure the reference signal resources before receiving the first signaling, provided that the first condition is met. In this implementation, the terminal device can measure the reference signal resources of the candidate cell in advance, obtain the channel measurement results of the candidate cell, and then report the channel measurement results in a timely manner after receiving the first signaling. This can reduce the measurement complexity of the terminal device, reduce the reporting delay, and improve the overall measurement performance.

[0035] In some implementations of the first aspect, measuring the reference signal resource after receiving the first signaling includes: starting to measure the reference signal resource at a first moment, where the first moment is the moment when the first reference moment has elapsed for a first duration.

[0036] The first reference time includes any of the following:

[0037] The terminal device receives downlink control information (DCI) at the time of reception. The downlink control information is used to schedule the first signaling.

[0038] The moment when the terminal device receives the first signaling;

[0039] The timing of the terminal device sending feedback signaling; the feedback signaling is the signaling that responds to the first signaling.

[0040] The time when the terminal device sends the feedback signaling after the second duration has elapsed;

[0041] The terminal device sends feedback signaling at the time when the second and third durations have passed, where the third duration is the duration of the cell handover interruption; or, the time when the first cell handover is completed.

[0042] Using the above method, after receiving the first signaling, the terminal device starts measuring the reference signal resources of the first cell at the first moment and obtains the channel measurement results. This is beneficial for the network device to determine the transmission parameters based on the channel measurement results after the terminal device switches to the first cell, and to schedule the terminal device through the transmission parameters, thereby improving the reliability and efficiency of data transmission.

[0043] The above illustrates some possible implementations of the first reference time, specifying the time when the terminal device begins measuring the reference signal of the first cell. This facilitates the terminal device obtaining the channel measurement results of the first cell during or after cell handover, enabling the network device to determine the transmission parameters of the first cell based on the channel measurement results, thereby improving transmission performance.

[0044] In some implementations of the first aspect, the method further includes: receiving first configuration information, the first configuration information being used to indicate one or more reporting configurations of the serving cell.

[0045] Using the above method, the network device indicates or configures one or more reporting configurations of the serving cell, or in other words, the terminal device can be configured with one or more reporting configurations of the serving cell, so that the terminal device can report the channel measurement results of the first cell through the reporting configuration of the serving cell.

[0046] In some implementations of the first aspect, one or more reporting configurations are associated with reference signal resources of the first cell; or, each of the one or more reporting configurations is associated with a resource configuration, and the resource configuration associated with the one or more reporting configurations includes the reference signal resources of the first cell.

[0047] Using the above methods, network devices can provide two implementations of reporting configuration associated reference signal resources, suitable for different scenarios.

[0048] In some implementations of the first aspect, the method further includes: receiving second configuration information, the second configuration information being used to instruct the terminal device to measure reference signal resources and / or report channel measurement results before or after receiving the first signaling.

[0049] Using the above method, the network device instructs or configures the terminal device to measure the reference signal resources and / or report the channel measurement results before or after receiving the first signaling, so that the terminal device clearly knows the timing of measuring and / or reporting the reference signal resources, thereby realizing the effective measurement and / or reporting of the reference signal resources and improving system performance.

[0050] In some implementations of the first aspect, the method further includes: transmitting capability information of the terminal device, wherein the capability information includes at least one of the following: the terminal device supports measuring reference signal resources and / or reporting channel measurement results; the terminal device supports measuring reference signal resources and / or reporting channel measurement results before receiving the first signaling; or, the terminal device supports measuring reference signal resources and / or reporting channel measurement results after receiving the first signaling.

[0051] Using the above method, the terminal device reports capability information, enabling the network device to determine whether the terminal device supports the measurement of reference signal resources and / or the reporting of channel measurement results, and / or to determine the timing for the terminal device to report channel measurement results. That is, enabling the terminal device to measure reference signal resources and / or report channel measurement results of candidate cells under different capabilities, facilitating the network device to perform corresponding resource configuration and reporting configuration for the terminal device, and improving system transmission performance.

[0052] In some implementations of the first aspect, transmitting channel measurement results includes: transmitting channel measurement results on the reporting resources of the first cell; wherein the reporting resources of the first cell include at least one of the following: physical uplink shared channel (PUSCH) resources scheduled for uplink grant scheduling in the random access response (RAR) during random access; PUSCH contained in message A during the two-step random access process; the first uplink channel after the random access process is completed; the first uplink channel after the handover of the first cell is completed; a pre-configured PUSCH, which is used to carry the reporting of channel measurement results after the handover of the first cell; or, the PUSCH scheduled for the first uplink control information after the handover of the first cell is completed.

[0053] Using the above method, the terminal device can determine the method or location for reporting channel measurement results based on different situations. For example, if the cell handover is based on a four-step contention-free random access (CFRA) cell handover, the terminal device will send the channel measurement results on the PUSCH resource granted by the RAR uplink (UL) during the four-step random access process. For example, if the cell handover is based on a two-step CFRA cell handover, the terminal device can send the channel measurement results on the PUSCH included in message A during the two-step random access process. For example, if the cell handover is based on a contention-based random access (CBRA) cell handover, the terminal device can send the channel measurement results on the first uplink channel after the random access process is completed. For example, if the cell handover is a random access channel (RACH) cell handover, the terminal device can send the channel measurement results on the first uplink channel after the first cell handover is completed, and so on, without limitation.

[0054] Secondly, a method for measuring reference signal resources is provided. This method can be applied to the terminal side, such as a terminal device or a communication module and / or computing module within the terminal device, or circuits or chips in the terminal device responsible for communication functions (such as modem chips, also known as baseband chips, or SoC chips or SIP chips containing modem cores), or circuits or chips in the terminal device responsible for communication and / or computing functions (such as GPUs, AI processors, or ASICs), or it can also be a logic module or software that can implement all or part of the terminal functions. The method is described using an example of its application to a terminal device.

[0055] In this method, the terminal device receives a first signaling instruction, which instructs the terminal device to switch from the serving cell to a first cell; if at least a second condition is met, the measurement timing of the reference signal resources is determined, which is the time when the terminal device measures the reference signal resources after receiving the first signaling instruction, and the candidate cells include the first cell; the terminal device sends channel measurement results to the first cell, which are obtained based on the measurement timing of the reference signal resources.

[0056] The second condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device only supports measuring reference signal resources after receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources after receiving the first signaling; the terminal device supports measuring reference signal resources before and after receiving the first signaling; or, the terminal device does not support measuring reference signal resources before receiving the first signaling.

[0057] In other words, if at least the second condition is met, the reference signal resources are measured after receiving the first signaling to obtain the channel measurement results.

[0058] For example, the reference signal resource is a periodic reference signal resource.

[0059] Using the above method, after determining that at least the second condition is met, the terminal device measures the reference signal resources after receiving the first signaling, obtains the channel measurement results, and sends the channel measurement results to the first cell. In this implementation, the terminal device can measure only the reference signal resources of the first cell, which can reduce the measurement complexity of the terminal device and reduce reporting overhead.

[0060] Thirdly, a method for measuring reference signal resources is provided. This method can be applied to the terminal side, such as a terminal device or a communication module and / or computing module within the terminal device, or circuits or chips in the terminal device responsible for communication functions (such as modem chips, also known as baseband chips, or SoC chips or SIP chips containing modem cores), or circuits or chips in the terminal device responsible for communication and / or computing functions (such as GPUs, AI processors, or ASICs), or it can also be a logic module or software that can implement all or part of the terminal functions. The method will be described using an example of its application to a terminal device.

[0061] In this method, the terminal device receives a first signaling instruction, which instructs the terminal device to switch from the serving cell to a first cell; if at least a third condition is met, the measurement timing of the reference signal resources is determined, whereby the terminal device measures the reference signal resources before receiving the first signaling instruction, and the candidate cells include the first cell; the terminal device sends channel measurement results to the first cell, whereby the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0062] The third condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device supports measuring reference signal resources before receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources before receiving the first signaling; the terminal device supports measuring reference signal resources before and after receiving the first signaling; or, the network device does not configure or instruct the terminal device to measure reference signal resources after receiving the first signaling.

[0063] In other words, if at least the third condition is met, the reference signal resources are measured before receiving the first signaling to obtain the channel measurement results.

[0064] For example, the reference signal resource is a periodic reference signal resource.

[0065] Using the above method, the terminal device, upon determining that at least the third condition is met, measures the reference signal resources before receiving the first signaling to obtain channel measurement results, and then sends these results to the first cell. In this implementation, the terminal device can measure the reference signal resources of the candidate cell in advance, obtain the channel measurement results of the candidate cell, and then promptly report the channel measurement results after receiving the first signaling. This reduces the measurement complexity of the terminal device, lowers the reporting latency, and improves overall measurement performance.

[0066] Fourthly, a method for measuring reference signal resources is provided. This method can be applied to the terminal side, such as a terminal device or a communication module and / or computing module within the terminal device, or circuits or chips in the terminal device responsible for communication functions (such as modem chips, also known as baseband chips, or SoC chips or SIP chips containing modem cores), or circuits or chips in the terminal device responsible for communication and / or computing functions (such as GPUs, AI processors, or ASICs), or it can also be a logic module or software that can implement all or part of the terminal functions. The method is described using an example of its application to a terminal device.

[0067] In this method, the terminal device receives a first signaling instruction, which instructs the terminal device to switch from the serving cell to the first cell; if at least a fourth condition is met, the measurement timing of the reference signal resources is determined, which is the measurement of the reference signal resources by the terminal device after receiving the first signaling instruction, and the candidate cells include the first cell; the terminal device sends channel measurement results to the first cell, which are obtained by measuring the reference signal resources based on the measurement timing.

[0068] The fourth condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results for candidate cells; the terminal device only supports measuring reference signal resources after receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources after receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the terminal device does not support measuring reference signal resources before receiving the first signaling; the terminal device receives a second signaling used to activate reference signal resources; the terminal device receives the second signaling after receiving the first signaling; the terminal device receives the second signaling before receiving the first signaling; the first signaling contains first information used to trigger the measurement of reference signal resources; the terminal device receives the second signaling, and the second signaling takes effect after receiving the first signaling; or, the terminal device receives the second signaling, and the second signaling contains second information used to instruct the terminal device to measure reference signal resources after receiving the first signaling.

[0069] In other words, if at least the fourth condition is met, the reference signal resources are measured after receiving the first signaling to obtain the channel measurement results.

[0070] For example, the reference signal resource is a semi-persistent reference signal resource.

[0071] Using the above method, after determining that at least the fourth condition is met, the terminal device measures the reference signal resources after receiving the first signaling, obtains the channel measurement results, and sends the channel measurement results to the first cell. In this implementation, the terminal device can measure only the reference signal resources of the first cell, which can reduce the measurement complexity of the terminal device and reduce reporting overhead.

[0072] Fifthly, a method for measuring reference signal resources is provided. This method can be applied to the terminal side, such as a terminal device or a communication module and / or computing module within the terminal device, or a circuit or chip in the terminal device responsible for communication functions (such as a modem chip, also known as a baseband chip, or a SoC chip or SIP chip containing a modem core), or a circuit or chip in the terminal device responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or it can also be a logic module or software that can implement all or part of the terminal functions. The method is described using an example of its application to a terminal device.

[0073] In this method, the terminal device receives a first signaling instruction, which instructs the terminal device to switch from the serving cell to the first cell; if at least a fifth condition is met, the measurement timing of the reference signal resources is determined, whereby the terminal device measures the reference signal resources before receiving the first signaling instruction, and the candidate cells include the first cell; the terminal device sends channel measurement results to the first cell, whereby the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0074] The fifth condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device supports measuring reference signal resources before receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources before receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the network device does not configure or instruct the terminal device to measure reference signal resources after receiving the first signaling; the terminal device receives a second signaling used to activate reference signal resources; the terminal device receives the second signaling before receiving the first signaling; the terminal device receives the second signaling, and the effective time of the second signaling is before receiving the first signaling; or, the terminal device receives the second signaling, and the second signaling contains third information used to instruct the terminal device to start measuring reference signal resources when the second signaling takes effect.

[0075] In other words, if at least the fifth condition is met, the reference signal resources are measured before receiving the first signaling to obtain the channel measurement results.

[0076] For example, the reference signal resource is a semi-persistent reference signal resource.

[0077] Using the above method, the terminal device, upon determining that at least the fifth condition is met, measures the reference signal resources before receiving the first signaling to obtain channel measurement results, and then sends these results to the first cell. In this implementation, the terminal device can measure the reference signal resources of the candidate cell in advance, obtain the channel measurement results of the candidate cell, and then promptly report the channel measurement results after receiving the first signaling. This reduces the measurement complexity of the terminal device, lowers the reporting latency, and improves overall measurement performance.

[0078] Sixthly, a method for measuring reference signal resources is provided. This method can be applied to the terminal side, such as a terminal device or a communication module and / or computing module within the terminal device, or a circuit or chip in the terminal device responsible for communication functions (such as a modem chip, also known as a baseband chip, or a SoC chip or SIP chip containing a modem core), or a circuit or chip in the terminal device responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or it can also be a logic module or software that can implement all or part of the terminal functions. The method is described using an example of its application to a terminal device.

[0079] In this method, the terminal device receives a first signaling instruction, which instructs the terminal device to switch from the serving cell to the first cell; if at least a sixth condition is met, the measurement timing of the reference signal resources is determined, which is the measurement of the reference signal resources by the terminal device after receiving the first signaling instruction, and the candidate cells include the first cell; the terminal device sends channel measurement results to the first cell, which are obtained by measuring the reference signal resources based on the measurement timing.

[0080] The sixth condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results for candidate cells; the terminal device only supports measuring reference signal resources after receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources after receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the terminal device does not support measuring reference signal resources before receiving the first signaling; the terminal device receives a third signaling, which is used to trigger the measurement of reference signal resources; the terminal device receives the third signaling after receiving the first signaling; the terminal device receives the third signaling before receiving the first signaling; the first signaling contains first information, which is used to trigger the measurement of reference signal resources; the terminal device receives the third signaling, and the effective time of the third signaling is after receiving the first signaling; or, the terminal device receives the third signaling, and the third signaling contains fourth information, which is used to instruct the terminal device to measure reference signal resources after receiving the first signaling.

[0081] In other words, if at least the sixth condition is met, the reference signal resources are measured after receiving the first signaling to obtain the channel measurement results.

[0082] For example, the reference signal resource is a non-periodic reference signal resource.

[0083] Using the above method, after receiving the first signaling, the terminal device, upon determining that at least the sixth condition is met, measures the reference signal resources to obtain the channel measurement result and sends the channel measurement result to the first cell. In this implementation, the terminal device can measure only the reference signal resources of the first cell, which reduces the measurement complexity of the terminal device and reduces reporting overhead.

[0084] Seventhly, a method for measuring reference signal resources is provided. This method can be applied to the terminal side, such as a terminal device or a communication module and / or computing module within the terminal device, or a circuit or chip in the terminal device responsible for communication functions (such as a modem chip, also known as a baseband chip, or a SoC chip or SIP chip containing a modem core), or a circuit or chip in the terminal device responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or it can also be a logic module or software that can implement all or part of the terminal functions. The method is described using an example of its application to a terminal device.

[0085] In this method, the terminal device receives a first signaling instruction, which instructs the terminal device to switch from the serving cell to the first cell; if at least a seventh condition is met, the measurement timing of the reference signal resources is determined, which is the measurement of the reference signal resources by the terminal device before receiving the first signaling instruction, and the candidate cells include the first cell; the terminal device sends channel measurement results to the first cell, which are obtained based on the measurement of the reference signal resources by the measurement timing.

[0086] The seventh condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device supports measuring reference signal resources before receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources before receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the network device does not configure or instruct the terminal device to measure reference signal resources after receiving the first signaling; the terminal device receives a third signaling, which is used to trigger the measurement of reference signal resources; the terminal device receives the third signaling before receiving the first signaling; the terminal device receives the third signaling, and the effective time of the third signaling is before receiving the first signaling; or, the terminal device receives the third signaling, and the third signaling contains fifth information, which instructs the terminal device to start measuring reference signal resources when the third signaling takes effect.

[0087] In other words, if at least the seventh condition is met, the reference signal resources are measured before receiving the first signaling to obtain the channel measurement results.

[0088] For example, the reference signal resource is a non-periodic reference signal resource.

[0089] Using the above method, the terminal device, upon determining that at least the seventh condition is met, measures the reference signal resources before receiving the first signaling to obtain channel measurement results, and then sends these results to the first cell. In this implementation, the terminal device can measure the reference signal resources of the candidate cell in advance, obtain the channel measurement results of the candidate cell, and then promptly report the channel measurement results after receiving the first signaling. This reduces the measurement complexity of the terminal device, lowers the reporting latency, and improves overall measurement performance.

[0090] Eighthly, a communication device is provided. This communication device has the functions described in the first aspect above. For example, the communication device includes modules, units, or means corresponding to the operations involved in the first aspect. These modules, units, or means can be implemented in software, hardware, or a combination of software and hardware.

[0091] For example, the aforementioned communication device may be a terminal device, or a communication and / or computing module in a terminal device, or a chip in a terminal device responsible for communication functions such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module, or a circuit or chip in a terminal device responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or a logic node or logic module capable of implementing all or part of the functions of a terminal device.

[0092] In one possible implementation, the communication device includes: a communication unit (or communication module), and a processing unit (or processing module) connected to the communication unit.

[0093] For example, the communication unit is configured to receive a first signaling message, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit is configured to determine the measurement timing of the reference signal resources according to a first condition, the first condition including the acquisition and / or reporting of channel measurement results of the candidate cells supported by the terminal device, the measurement timing being that the terminal device measures the reference signal resources before or after receiving the first signaling message, the candidate cells including the first cell; the communication unit is further configured to send the channel measurement results to the first cell, the channel measurement results being obtained based on the measurement timing of the reference signal resources.

[0094] The aforementioned communication device may be a terminal device, a communication module in a terminal device, or a chip in a terminal device that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip that contains a modem module.

[0095] Ninthly, a communication device is provided. This communication device has the functions described in the second aspect above. For example, the communication device includes modules, units, or means corresponding to the operations involved in the second aspect above. These modules, units, or means can be implemented in software, hardware, or a combination of software and hardware.

[0096] For example, the aforementioned communication device may be a terminal device, or a communication and / or computing module in a terminal device, or a chip in a terminal device responsible for communication functions such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module, or a circuit or chip in a terminal device responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or a logic node or logic module capable of implementing all or part of the functions of a terminal device.

[0097] In one possible implementation, the communication device includes: a communication unit (or communication module), and a processing unit (or processing module) connected to the communication unit.

[0098] For example, the communication unit is configured to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit is configured to determine the measurement timing of the reference signal resources if at least a second condition is met, wherein the measurement timing is when the terminal device measures the reference signal resources after receiving the first signaling, and the candidate cells include the first cell; the communication unit is further configured to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0099] The second condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device only supports measuring reference signal resources after receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources after receiving the first signaling; the terminal device supports measuring reference signal resources before and after receiving the first signaling; or, the terminal device does not support measuring reference signal resources before receiving the first signaling.

[0100] The aforementioned communication device may be a terminal device, a communication module in a terminal device, or a chip in a terminal device that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip that contains a modem module.

[0101] In a tenth aspect, a communication device is provided. This communication device has the functions described in the third aspect above. For example, the communication device includes modules, units, or means corresponding to the operations involved in the third aspect. These modules, units, or means can be implemented in software, hardware, or a combination of software and hardware.

[0102] For example, the aforementioned communication device may be a terminal device, or a communication and / or computing module in a terminal device, or a chip in a terminal device responsible for communication functions such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module, or a circuit or chip in a terminal device responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or a logic node or logic module capable of implementing all or part of the functions of a terminal device.

[0103] In one possible implementation, the communication device includes: a communication unit (or communication module), and a processing unit (or processing module) connected to the communication unit.

[0104] For example, the communication unit is configured to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit is configured to determine the measurement timing of the reference signal resources if at least a third condition is met, wherein the measurement timing is that the terminal device measures the reference signal resources before receiving the first signaling, and the candidate cells include the first cell; the communication unit is further configured to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0105] The third condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device supports measuring reference signal resources before receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources before receiving the first signaling; the terminal device supports measuring reference signal resources before and after receiving the first signaling; or, the network device does not configure or instruct the terminal device to measure reference signal resources after receiving the first signaling.

[0106] The aforementioned communication device may be a terminal device, a communication module in a terminal device, or a chip in a terminal device that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip that contains a modem module.

[0107] Eleventhly, a communication device is provided. This communication device has the functions described in the fourth aspect above. For example, the communication device includes modules, units, or means corresponding to the operations involved in the fourth aspect. These modules, units, or means can be implemented through software, hardware, or a combination of software and hardware.

[0108] For example, the aforementioned communication device may be a terminal device, or a communication and / or computing module in a terminal device, or a chip in a terminal device responsible for communication functions such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module, or a circuit or chip in a terminal device responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or a logic node or logic module capable of implementing all or part of the functions of a terminal device.

[0109] In one possible implementation, the communication device includes: a communication unit (or communication module), and a processing unit (or processing module) connected to the communication unit.

[0110] For example, the communication unit is configured to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit is configured to determine the measurement timing of the reference signal resources when at least a fourth condition is met, wherein the measurement timing is when the terminal device measures the reference signal resources after receiving the first signaling, and the candidate cells include the first cell; the communication unit is further configured to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0111] The fourth condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results for candidate cells; the terminal device only supports measuring reference signal resources after receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources after receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the terminal device does not support measuring reference signal resources before receiving the first signaling; the terminal device receives a second signaling used to activate reference signal resources; the terminal device receives the second signaling after receiving the first signaling; the terminal device receives the second signaling before receiving the first signaling; the first signaling contains first information used to trigger the measurement of reference signal resources; the terminal device receives the second signaling, and the second signaling takes effect after receiving the first signaling; or, the terminal device receives the second signaling, and the second signaling contains second information used to instruct the terminal device to measure reference signal resources after receiving the first signaling.

[0112] The aforementioned communication device may be a terminal device, a communication module in a terminal device, or a chip in a terminal device that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip that contains a modem module.

[0113] In a twelfth aspect, a communication device is provided. This communication device has the functions described in the fifth aspect above. For example, the communication device includes modules, units, or means corresponding to the operations involved in the fifth aspect. These modules, units, or means can be implemented in software, hardware, or a combination of software and hardware.

[0114] For example, the aforementioned communication device may be a terminal device, or a communication and / or computing module in a terminal device, or a chip in a terminal device responsible for communication functions such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module, or a circuit or chip in a terminal device responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or a logic node or logic module capable of implementing all or part of the functions of a terminal device.

[0115] In one possible implementation, the communication device includes: a communication unit (or communication module), and a processing unit (or processing module) connected to the communication unit.

[0116] For example, the communication unit is configured to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit is configured to determine the measurement timing of the reference signal resources if at least a fifth condition is met, wherein the measurement timing is that the terminal device measures the reference signal resources before receiving the first signaling, and the candidate cells include the first cell; the communication unit is further configured to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0117] The fifth condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device supports measuring reference signal resources before receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources before receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the network device does not configure or instruct the terminal device to measure reference signal resources after receiving the first signaling; the terminal device receives a second signaling used to activate reference signal resources; the terminal device receives the second signaling before receiving the first signaling; the terminal device receives the second signaling, and the effective time of the second signaling is before receiving the first signaling; or, the terminal device receives the second signaling, and the second signaling contains third information used to instruct the terminal device to start measuring reference signal resources when the second signaling takes effect.

[0118] The aforementioned communication device may be a terminal device, a communication module in a terminal device, or a chip in a terminal device that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip that contains a modem module.

[0119] In a thirteenth aspect, a communication device is provided. This communication device has the functions described in the sixth aspect above. For example, the communication device includes modules, units, or means corresponding to the operations involved in the sixth aspect. These modules, units, or means can be implemented in software, hardware, or a combination of software and hardware.

[0120] For example, the aforementioned communication device may be a terminal device, or a communication and / or computing module in a terminal device, or a chip in a terminal device responsible for communication functions such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module, or a circuit or chip in a terminal device responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or a logic node or logic module capable of implementing all or part of the functions of a terminal device.

[0121] In one possible implementation, the communication device includes: a communication unit (or communication module), and a processing unit (or processing module) connected to the communication unit.

[0122] For example, the communication unit is configured to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit is configured to determine the measurement timing of the reference signal resources if at least a sixth condition is met, wherein the measurement timing is when the terminal device measures the reference signal resources after receiving the first signaling, and the candidate cells include the first cell; the communication unit is further configured to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0123] The sixth condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results for candidate cells; the terminal device only supports measuring reference signal resources after receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources after receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the terminal device does not support measuring reference signal resources before receiving the first signaling; the terminal device receives a third signaling, which is used to trigger the measurement of reference signal resources; the terminal device receives the third signaling after receiving the first signaling; the terminal device receives the third signaling before receiving the first signaling; the first signaling contains first information, which is used to trigger the measurement of reference signal resources; the terminal device receives the third signaling, and the effective time of the third signaling is after receiving the first signaling; or, the terminal device receives the third signaling, and the third signaling contains fourth information, which is used to instruct the terminal device to measure reference signal resources after receiving the first signaling.

[0124] The aforementioned communication device may be a terminal device, a communication module in a terminal device, or a chip in a terminal device that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip that contains a modem module.

[0125] In a fourteenth aspect, a communication device is provided. This communication device has the functions described in the seventh aspect above. For example, the communication device includes modules, units, or means corresponding to the operations involved in the seventh aspect. These modules, units, or means can be implemented in software, hardware, or a combination of software and hardware.

[0126] For example, the aforementioned communication device may be a terminal device, or a communication and / or computing module in a terminal device, or a chip in a terminal device responsible for communication functions such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module, or a circuit or chip in a terminal device responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or a logic node or logic module capable of implementing all or part of the functions of a terminal device.

[0127] In one possible implementation, the communication device includes: a communication unit (or communication module), and a processing unit (or processing module) connected to the communication unit.

[0128] For example, the communication unit is configured to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit is configured to determine the measurement timing of the reference signal resources if at least a seventh condition is met, wherein the measurement timing is that the terminal device measures the reference signal resources before receiving the first signaling, and the candidate cells include the first cell; the communication unit is further configured to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0129] The seventh condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device supports measuring reference signal resources before receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources before receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the network device does not configure or instruct the terminal device to measure reference signal resources after receiving the first signaling; the terminal device receives a third signaling, which is used to trigger the measurement of reference signal resources; the terminal device receives the third signaling before receiving the first signaling; the terminal device receives the third signaling, and the effective time of the third signaling is before receiving the first signaling; or, the terminal device receives the third signaling, and the third signaling contains fifth information, which instructs the terminal device to start measuring reference signal resources when the third signaling takes effect.

[0130] The aforementioned communication device may be a terminal device, a communication module in a terminal device, or a chip in a terminal device that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip that contains a modem module.

[0131] In a fifteenth aspect, a communication device is provided. The communication device includes an interface circuit and one or more processors. The one or more processors are coupled to a memory. The memory is used to store part or all of a computer program or instructions necessary for implementing the functions involved in the first to seventh aspects and any of their implementations. The one or more processors are executable to carry out the computer program or instructions, which, when executed, cause the communication device to implement the methods in any possible design or implementation of the first to seventh aspects. The interface circuit is used to implement communication functions within the communication device and / or communication functions between the communication device and other devices or components.

[0132] In one possible design, the processor is used to communicate with other devices or components through the interface circuit.

[0133] In one possible design, the communication device may also include the memory.

[0134] The aforementioned communication device may be a terminal device, or a communication and / or computing module in a terminal device, or a chip in a terminal device that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module, or a circuit or chip in a terminal device that is responsible for communication and / or computing functions (such as a GPU, AI processor, or ASIC), or a logic node or logic module that can implement all or part of the functions of a terminal device.

[0135] In a sixteenth aspect, a communication system is provided. The communication system includes a network device and a terminal device, wherein the terminal device is used to perform the method in any of the possible implementations of the first to seventh aspects described above.

[0136] In a seventeenth aspect, a computer-readable storage medium is provided. This computer-readable storage medium stores computer program code or instructions, which, when read and executed by a computer, cause the method in any of the possible implementations of the first to seventh aspects to be implemented.

[0137] Eighteenthly, a computer program product is provided. The computer program product includes computer program code or instructions that, when read and executed by a computer, cause the methods in any of the possible implementations of the first to seventh aspects to be implemented.

[0138] In a nineteenth aspect, a computer program is provided. When the computer program is run, it causes the methods in any of the possible implementations of the first to seventh aspects to be implemented.

[0139] It should be understood that the beneficial effects of aspects eight through nineteen above can be referenced from aspects one through seven above and any of their implementation methods, and will not be elaborated here. Attached Figure Description

[0140] Figures 1 and 2 are schematic diagrams of a communication system applicable to this application;

[0141] Figure 3 is a schematic diagram of the network element function division and protocol layer structure of an access network device;

[0142] Figure 4 is a schematic diagram of a cell handover scenario applicable to embodiments of this application;

[0143] Figure 5 is a schematic diagram of the structure of the MAC CE applicable to an embodiment of this application;

[0144] Figure 6 is a flowchart illustrating a method for measuring reference signal resources according to an embodiment of this application;

[0145] Figure 7 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0146] Figure 8 is a schematic diagram of another communication device provided in an embodiment of this application;

[0147] Figure 9 is a schematic diagram of the chip system provided in an embodiment of this application. Detailed Implementation

[0148] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0149] Before introducing the scheme of this application, the following points should be noted.

[0150] First, in this application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0151] Second, in this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. In the textual description of this application, the character " / " generally indicates that the preceding and following related objects are in 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, and c can mean: a, or, b, or, c, or, a and b, or, a and c, or, b and c, or, a, b, and c. Here, a, b, and c can each be single or multiple.

[0152] Third, in this application, the terms "first," "second," and various numerical designations (e.g., #1, #2, etc.) indicate distinctions made for ease of description and are not intended to limit the scope of the embodiments of this application. For example, they distinguish different messages, rather than describing a specific order or sequence. It should be understood that such descriptions can be interchanged where appropriate to describe solutions other than those in the embodiments of this application.

[0153] Fourth, in this application, "instruction" or "for instruction" can include both direct and indirect instruction. When describing instruction information as being used to instruct A, it can include whether the instruction information directly or indirectly instructs A, but does not necessarily mean that the instruction information carries A.

[0154] The indication methods involved in the embodiments of this application should be understood to cover various methods that enable the party to be indicated to obtain the information to be indicated. The information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately. Moreover, the sending period and / or sending time of these sub-information can be the same or different. This application does not limit the sending method, for example.

[0155] The "instruction information" in the embodiments of this application can be an explicit instruction, that is, a direct instruction through signaling, or an instruction obtained by combining other rules or parameters with the parameters indicated by the signaling, or by deduction. It can also be an implicit instruction, that is, an instruction obtained based on rules or relationships, or based on other parameters, or by deduction. This application does not specifically limit it in this regard.

[0156] Fifth, in this application, "protocol" can refer to a standard protocol in the field of communications, such as fifth-generation (5G) protocols. thThis application does not limit the scope of protocols such as generation (5G), new radio (NR), and related protocols applied in future communication systems. "Predefined" may include predefined terms, such as protocol definitions. "Preconfiguration" can be achieved by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device; this application does not limit the implementation method.

[0157] Sixth, in this application, "communication" can also be described as "data transmission," "information transmission," "data processing," etc. "Transmission" includes "sending" and / or "receiving." "Transmission" can be described as "output."

[0158] Seventh, in this application, "sending information to XX (device)" can be understood as the destination of the information being that device. This can include sending information directly or indirectly to that device. "Receiving information from XX (device), or receiving information from XX (device)" can be understood as the source of the information being that device, and can include receiving information directly or indirectly from that device. Information may undergo necessary processing between the source and destination, such as format changes, but the destination can understand the valid information from the source. Similar expressions in this application can be understood in a similar way, and will not be elaborated further here.

[0159] Eighth, in this application, the words "exemplarily," "for example," etc., are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as an "example" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the word "example" is intended to present concepts in a concrete manner. In the embodiments of this application, "of," "corresponding, relevant," and "corresponding" may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinction is emphasized.

[0160] Ninth, in this application, when comparing A and B, the description "when A is greater than or equal to B, execute method A; when A is less than or equal to B, execute method B" can be implemented in a way that is "when A is greater than or equal to B, execute method A; when A is less than B, execute method B"; or it can be "when A is greater than B, execute method A; or when A is less than or equal to B, execute method B". This application does not limit this. For ease of description, the implementation methods provided in this application are all illustrated using "when A is greater than or equal to B, execute method A; or when A is less than B, execute method B" as an example.

[0161] In other words, "<" means less than, and "≤" means less than or equal to. "<" and "≤" can sometimes be used interchangeably without limitation. Similarly, ">" means greater than, and "≥" means greater than or equal to. ">" and "≥" can sometimes be used interchangeably without limitation. The examples provided in this application are merely illustrative and do not constitute a limitation on this application.

[0162] The following describes the communication system to which this application applies.

[0163] The technical solutions of this application embodiment can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, 5G or NR systems and future communication systems, vehicle-to-everything (V2X) systems, where V2X can include vehicle-to-network (V2N), vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), long term evolution-vehicle (LTE-V) communication, vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), long term evolution-machine (LTE-M) communication, machine-to-machine (M2M) communication, etc.

[0164] Figure 1 is a schematic diagram of a communication system applicable to an embodiment of this application. As shown in Figure 1, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. RAN 100 includes at least one RAN node (110a and 110b in Figure 1, collectively referred to as 110) and at least one terminal (120a-120j in Figure 1, collectively referred to as 120). RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1). Terminal 120 is wirelessly connected to RAN node 110. RAN node 110 is wirelessly or wired connected to CN 200. The core network device in CN 200 and RAN node 110 in RAN 100 can be different physical devices, or they can be the same physical device integrating core network logical functions and radio access network logical functions.

[0165] RAN 100 can be used for cellular systems related to the third generation partnership project (3GPP), such as fourth generation (4G). th RAN 100 can be a generation (4G) mobile communication system, a 5G mobile communication system, or a future-oriented evolution system. RAN 100 can also be an open radio access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system. RAN 100 can also be a communication system that integrates two or more of the above systems.

[0166] RAN node 110, sometimes also referred to as access network equipment, RAN entity, or access node, constitutes part of the communication system and is used to help terminals achieve wireless access. Multiple RAN nodes 110 in this communication system can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal 120 are relative. For example, network element 120i in Figure 1 can be a helicopter or drone, which can be configured as a mobile base station. For terminals 120j accessing RAN 100 through network element 120i, network element 120i is a base station; but for base station 110a, network element 120i is a terminal. RAN node 110 and terminal 120 are sometimes both referred to as communication devices. For example, network elements 110a and 110b in Figure 1 can be understood as communication devices with base station functions, and network elements 120a-120j can be understood as communication devices with terminal functions.

[0167] In one possible scenario, the RAN node can be a base station (BS), an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a base station in a future mobile communication system, or an access node in a WiFi system. The RAN node can be a macro base station (as shown in Figure 1, 110a), a micro base station or indoor station (as shown in Figure 1, 110b), a relay node or donor node, or a radio controller in a CRAN scenario. Optionally, the RAN node can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network equipment in V2X technology can be a roadside unit (RSU). All or part of the functions of the RAN node in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (e.g., a cloud platform). The RAN node can also be equipped with communication modules, circuits, or chips that perform corresponding communication functions. The RAN node can also be configured with program instructions for performing corresponding communication functions and corresponding program instructions. The RAN node in this application can also be a logical node, logical module, or software that can implement all or part of the functions of the RAN node.

[0168] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with each RAN node performing a portion of the base station's functions. For example, RAN nodes can be central units (CUs), distributed units (DUs), CU-control plane (CPs), CU-user plane (UPs), or radio units (RUs), etc. CUs and DUs can be separate entities or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio frequency equipment or radio frequency units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0169] In different systems, CU (including open CU-CP (O-CU-CP) and open CU-UP (O-CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open central unit (O-CU), DU can also be called an open distributed unit (O-DU), and RU can also be called an open radio unit (O-RU). For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0170] Terminal 120 can be a device or module that accesses the aforementioned communication system and has corresponding communication functions. A terminal can also be called a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), V2X communication, machine-type communications (MTC), IoT, virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, transportation vehicles with wireless communication capabilities, communication modules, etc. The embodiments of this application do not limit the device form of the terminal. A communication module, circuit, or chip that performs the corresponding communication function is typically installed within the terminal. The terminal can also be configured with program instructions for performing the corresponding communication function.

[0171] RAN 100 and terminal 120 can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which RAN 100 and terminal 120 are located.

[0172] CN 200 can be a 5G core network or an evolved 5G core network. Taking a 5G core network as an example, CN 200 includes access and mobility management (AMF) network elements responsible for mobility management and access management services; session management (SMF) network elements responsible for session management; user plane (UPF) network elements responsible for user plane packet routing and forwarding and quality of service (QoS) control; and policy control (PCF) network elements. These core network elements can operate independently or be combined to implement certain control functions; for example, AMF, SMF, and PCF can be combined into a single core network device.

[0173] It should be understood that the above naming is defined solely for the purpose of distinguishing different functions and should not constitute any limitation on this application. This application does not preclude the possibility of using other naming conventions in 5G networks and other future networks. For example, in future networks, some or all of the above-mentioned network elements may use the terminology from 5G, or they may use other names, etc.

[0174] Figure 2 is a schematic diagram of an ORAN applicable to an embodiment of this application. As shown in Figure 2(a), the O-RAN system may include a core network device (CN), a network device (RAN), and a terminal user (UE). The RAN communicates with the core network device via a backhaul link and with the UE via an air interface. For example, the BBU in the RAN communicates with the core network device via a backhaul link, and the RU in the RAN communicates with the UE via an air interface. The BBU communicates with the RU via a fronthaul link, wherein the BBU and RU may be co-located or not. The BBU includes at least one CU and at least one DU, and the CU and DU can communicate via at least one midhaul link. As shown in Figure 2(b), the O-RAN system includes a RAN intelligent controller (RIC). The RIC includes a near-real-time RIC (near-RT RIC) and a non-real-time RIC (non-RT RIC). The non-real-time RIC mainly processes non-real-time information, such as data that is not sensitive to latency, and the latency of this data can be on the order of seconds. Real-time RICs primarily process near-real-time information, such as latency-sensitive data with latency in the tens of milliseconds range. Optionally, near-real-time or non-real-time RICs can be configured as separate network elements; alternatively, they can be integrated into other devices. For example, near-real-time RICs can be located in RAN nodes (e.g., CUs or DUs), while non-real-time RICs can be located in operation administration and maintenance (OAM) systems, cloud servers, core network elements, or other network devices.

[0175] It is understood that Figure 1 or Figure 2 above are merely examples for ease of understanding and do not constitute a limitation on the scope of protection of this application. The communication system provided in the embodiments of this application may also include other devices, such as wireless relay devices and / or wireless backhaul devices, which are not shown in Figure 1 or Figure 2.

[0176] Figure 3 is a diagram showing the network element function division and protocol layer structure of an access network device (such as an O-RAN device).

[0177] As an example, an O-RAN device includes a CU (Core Unit). The CU is a logical node that carries the radio resource control (RRC), service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network equipment. The CU can connect to network nodes such as the core network through interfaces, such as the E2 interface. The CU may have some core network functions. The CU (e.g., the PDCP layer and / or higher) connects to the DU (e.g., the radio link control (RLC) layer and lower layers) through interfaces, such as the F1 interface. Optionally, the F1 interface can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1AP is the application protocol for the F1 interface, defining the signaling procedures for F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0178] As an example, a CU includes CU-CP and CU-UP. CU-CP is a logical node carrying the control plane (PDCP-C) layer, which carries the RRC layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be Access and Mobility Function (AMF) network elements, such as the AMF in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. CU-UP is a logical node carrying the user plane (PDCP-U) layer, which carries the SDAP layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network, such as the UPF in a 5G system, are responsible for data forwarding and receiving in terminal devices. The above configuration of CU and DU is merely an example; in practical applications, the functions of CU and DU can be configured as needed. For example, a CU or DU can be configured to have more protocol layer functions, or it can be configured to have only some protocol layer processing functions. For instance, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. As another example, the functions of the CU or DU can be divided according to service type or other system requirements. For instance, based on latency, functions that need to meet low latency requirements can be placed in the DU, while functions that do not need to meet this latency requirement can be placed in the CU.

[0179] As an example, O-RAN includes a DU. The DU is a logical node that carries the RLC layer, Media Access Control (MAC) layer, higher physical layer (Higher PHY), and other functions. In some examples, the DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.

[0180] As an example, O-RAN includes a RU (Runner Root). The RU is a logical node that carries both lower physical layer (PHY) and radio frequency (RF) processing. In some examples, the RU may be a 3GPP transmission reception point (TRP), a remote radio head (RRH), or other similar entities. In some examples, the Lower-PHY includes the PHY processing portion, such as Fast Fourier Transform (FFT), Inverse Fast Fourier Transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link (such as an RF chain).

[0181] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a fronthaul link through the lower-layer split CUS-plane (LLS-CUS-Plane) (or O-RAN CUS-Plane) interface. Here, CUS-Plane represents the control plane (C-Plane), user plane (UPlane), and synchronization plane (S-Plane) (CUS-Plane). LLS-CUS may include a lower-layer split control (LLS-C) interface providing the control plane and a lower-layer split user (LLS-U) interface providing the user plane. Additionally, LLS-CUS may include a lower-layer split synchronization (LLS-S) interface providing the synchronization plane. In some examples, the control plane (or control plane plane) refers to the real-time control between the DU and RU. The DU and RU exchange management plane information via the lower-layer split management (LLS-M) interface of the fronthaul link. The management plane (M-Plane) refers to the non-real-time management operations between the DU and RU.

[0182] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0183] It is understood that Figure 3 is an example provided for ease of understanding and does not constitute a limitation on the scope of protection of this application. The communication method provided in the embodiments of this application may also involve network elements not shown in Figure 3, and of course, the communication method provided in the embodiments of this application may also include only some of the network elements shown in Figure 3.

[0184] To facilitate understanding of the embodiments of this application, the basic concepts involved in this application will be explained first.

[0185] 1. Beam: A beam is a communication resource. A beam can be wide, narrow, or other types of beams, and the technology used to form a beam can be beamforming technology or other techniques. Beamforming technology can specifically be digital beamforming technology, analog beamforming technology, and hybrid digital / analog beamforming technology. Different beams can be considered different resources.

[0186] In the NR protocol, beaming can be referred to as a spatial domain filter, spatial filter, spatial domain parameter, spatial parameter, spatial domain setting, spatial setting, quasi-colocation (QCL) information, QCL assumption, or QCL indication, etc. Beaming can be indicated by transmission configuration indicator state (TCI state) parameters or by spatial relation parameters. Therefore, in this application, beaming can be replaced by spatial domain filter, spatial filter, spatial parameter, spatial parameter, spatial setting, spatial setting, QCL information, QCL assumption, QCL indication, TCI state (including uplink TCI state and downlink TCI state), or spatial relation, etc. The above terms are also equivalent to each other. Beaming can also be replaced with other beaming terms, which are not limited herein.

[0187] The beam used for transmitting signals can be referred to as a transmission beam (Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting. The transmission beam can also be called a downlink beam. In this application, the transmission beam, downlink beam, Channel State Information Reference Signal (CSI-RS), TCI state, downlink (DL) / joint TCI state, synchronization signal block (SSB), and tracking reference signal (TRS) can be interchanged. The DL / joint TCI state can also be called a DL or joint TCI state; that is, the DL / joint TCI state and the DL or joint TCI state can be used interchangeably.

[0188] The beam used to receive signals can be referred to as a reception beam (Rx beam), a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting. The uplink transmit beam can be indicated by any of the following: spatial relation, uplink TCI state, or sounding reference signal (SRS) resource (indicating the transmit beam using that SRS). The receive beam can also be referred to as the uplink beam. In this application, the receive beam, uplink beam, uplink transmission configuration indication state (uplink TCL state, UL TCI state), DL / joint TCI state, SRS, CSI-RS, SSB, and TRS can be interchanged.

[0189] The transmitting beam can refer to the distribution of signal strength in different directions in space after a signal is transmitted through an antenna, while the receiving beam can refer to the distribution of signal strength in different directions in space of a wireless signal received from an antenna.

[0190] Furthermore, the beam can be a wide beam, a narrow beam, or other types of beam. The beamforming technology can be beamforming technology or other technologies. Specifically, beamforming technology can be digital beamforming technology, analog beamforming technology, hybrid digital beamforming technology, or hybrid analog beamforming technology, etc.

[0191] Beams are generally associated with resources. For example, during beam measurement, network devices measure different beams using different resources. The terminal device provides feedback on the measured resource quality, allowing the network device to determine the quality of the corresponding beam. During data transmission, beam information is also indicated through its corresponding resources. For instance, network devices use the Transmission Configuration Indicator (TCI) field in the DCI to indicate the physical downlink shared channel (PDSCH) beam information of the terminal device.

[0192] In one possible implementation, multiple beams with the same or similar communication characteristics are considered as a single beam. A beam may include one or more antenna ports for transmitting data channels, control channels, and probe signals, etc. The one or more antenna ports forming a beam can also be considered as a set of antenna ports.

[0193] 2. Quasi-Co-location: Quasi-co-location indicates that multiple resources share one or more identical or similar communication characteristics. For multiple resources with quasi-co-location, identical or similar communication configurations can be used. For example, if two antenna ports have quasi-co-location, the large-scale channel characteristics of one port transmitting one symbol can be inferred from the large-scale channel characteristics of the other port transmitting one symbol. Large-scale characteristics can include: delay spread, average delay, Doppler spread, Doppler shift, average gain, receive parameters, terminal equipment receive beam number, transmit / receive channel correlation, receive angle of arrival, spatial correlation of receiver antennas, main angle of arrival (AoA), average angle of arrival, AoA spread, etc. Specifically, this co-location indication is used to indicate whether at least two sets of antenna ports have a co-location relationship, including: the co-location indication is used to indicate whether the channel state information reference signals transmitted by at least two sets of antenna ports originate from the same transmission point, or the co-location indication is used to indicate whether the channel state information reference signals transmitted by at least two sets of antenna ports originate from the same beam group.

[0194] 3. TCI: Also known as TCI state. In both uplink and downlink transmission, correct beamforming is required for proper transmission between network devices and terminal devices. In downlink transmission, the network device needs to indicate its downlink transmit beam to the terminal device. The terminal device can then determine a suitable receive beam to receive information from the network device. In uplink transmission, the network device also needs to indicate to the terminal device which uplink transmit beam it uses to send information. The network device can determine the uplink transmit beam with better signal quality for the terminal device. Both uplink and downlink transmit beams can be indicated by their respective TCI states. Specifically, the downlink transmit beam can be indicated by the downlink TCI state, and the uplink transmit beam by the uplink TCI state.

[0195] In the 3GPP protocol, network devices can indicate the TCI status to terminal devices through the TCI field in the DCI (Digital Channel Identity). The TCI field is 3 bits in size and can be represented by 8 different field values ​​(codepoints). Each field value of the TCI field can be associated with an index of a TCI status. This TCI status index uniquely identifies a TCI status, which can be a downlink TCI status or an uplink TCI status. Each field value of the TCI field can also be associated with two TCI status indices, which uniquely identify two TCI statuses, including one downlink TCI status and one uplink TCI status.

[0196] The downlink TCI status includes several parameters that terminal devices can use to determine information related to the downlink transmit beam, thereby determining the appropriate receive beam to receive information from the network device. The TCI status is indicated or configured by the network device to each terminal device. The structure of the downlink TCI status is shown below:

[0197] Each TCI state includes its own index (TCI stateId) and two quasi-colocation information (QCL-info) entries. Each QCL-info entry includes a reference signal resource, indicating that the downlink transmission for that TCI state should use the same downlink timing, frequency offset, or receive beam as that reference signal resource. This is determined by the type of the QCL-info entry. The QCL type can have four values: {typeA, typeB, typeC, typeD}. When the QCL type is typeA, typeB, or typeC, the downlink transmission should use the same downlink timing and frequency offset as that reference signal resource. When the QCL type is typeD, the downlink transmission should use the same receive beam as that reference signal resource. Of the two QCL-info entries mentioned above, one is typeD, and the other is typeA, typeB, or typeC. The terminal device can determine which receive beam to use to receive the corresponding downlink transmission by using the typeD QCL-info entry. The specific execution steps are as follows:

[0198] Network devices indicate a specific downlink TCI state to terminal devices via DCI. The terminal device identifies a reference signal resource in the QCL information for this downlink TCI state (type D). The terminal device then uses the receive beam of this reference signal resource as the receive beam for downlink transmission. It should be noted that the receive beam of this reference signal resource is obtained by the terminal device in advance through a beam management process. Through this beam management process, the terminal device can determine which receive beam is optimal for receiving the reference signal resource and select that beam as the receive beam for that reference signal resource.

[0199] The uplink TCI state includes a reference signal resource, which indicates that uplink transmissions using this TCI state should employ the same uplink transmit beam as the reference signal resource. The terminal device can determine which transmit beam to use for uplink transmission by using this reference signal resource. In the uplink TCI state, the reference signal resource is not included in the QCL-info and does not distinguish between QCL types, because it does not need to reference uplink timing and frequency offset information; only the uplink transmit beam needs to be referenced. The structure of the uplink TCI state is as follows:

[0200] The specific execution steps are as follows:

[0201] Network devices indicate a specific uplink TCI state to terminal devices via DCI. The terminal device then determines the reference signal resource within that uplink TCI state. The terminal device uses the transmission beam of this reference signal resource as its uplink transmission beam. It should be noted that the transmission beam of this reference signal resource is obtained by the terminal device in advance through a beam management process.

[0202] The following describes the configuration, activation, and indication of TCI status.

[0203] TCI state configuration: Network devices configure multiple TCI states to terminal devices via RRC signaling. Each of these TCI states includes a QCL-Info of type type D. Network devices can also configure TCI states that do not include a QCL-Info of type type D; however, these TCI states are not used for data transmission beam indication and will not be discussed further here.

[0204] TCI State Activation: After a network device indicates or configures multiple TCI states, it also needs to activate eight of them via MAC CE. These eight TCI states correspond one-to-one with the eight values ​​of the TCI field in the DCI. That is, which eight TCI states correspond to the eight values ​​of the TCI field in the DCI is determined by MAC CE.

[0205] TCI state indication: Network devices indicate a specific TCI state through the TCI field in the DCI. For example, if the TCI field value in the DCI sent by the network device to the terminal device is 000, it indicates that the data transmission beam uses the TCI state corresponding to 000. The reference signal contained in the type D QCL-Info within this TCI state is CSI-RS with index #1, indicating that the beam used for data transmission is the same as the receiving beam corresponding to CSI-RS with index #1. The receiving beam corresponding to CSI-RS with index #1 can be determined through beam measurement procedures and is known to the terminal device. Therefore, through the specific value of the TCI field, the terminal device can determine the beam corresponding to the data transmission beam and thus use the appropriate beam to send or receive data.

[0206] It should be noted that the three descriptions of TCI state, TCI state, and TCI state in this article can be used interchangeably.

[0207] 4. Unified TCI.

[0208] Release 17 introduces Unified TCI, a unified beam indication framework that allows network devices to indicate a common beam for end devices. This common beam can be used simultaneously for multiple channels and / or multiple reference signals. The common beam can be an uplink common beam, a downlink common beam, or an uplink-downlink common beam. The end device can use this common beam in subsequent transmissions. That is, the network device can indicate an uplink common beam for the transmission of multiple uplink channels and / or multiple uplink reference signals. It can also indicate a downlink common beam for the transmission of multiple downlink channels and / or multiple downlink reference signals. Alternatively, it can indicate an uplink-downlink common beam for the transmission of multiple uplink channels and / or multiple uplink reference signals, as well as multiple downlink channels and / or multiple downlink reference signals. In other words, the uplink-downlink common beam can be used for both uplink and downlink transmissions.

[0209] In Release 17 and later, terminal devices can be configured with two TCI states: DL / joint TCI state and UL TCI state. Here, DL stands for downlink and UL stands for uplink.

[0210] The terminal can be configured with DL / joint TCI states (up to 128) and UL TCI states (up to 64) simultaneously.

[0211] In the RRC signaling configuration (serving cell config), the network device can configure the TCI mode currently used by the terminal as either joint or separate. In joint mode, it indicates that a joint TCI state can be used for uplink and downlink transmission simultaneously; in separate mode, the network device needs to indicate that the DL TCI state and UL TCI state are used for uplink and downlink transmission respectively.

[0212] When the terminal device receives the TCI state activation signaling indicated by MAC-CE, the activation signaling includes the TCI state identifier (ID). The terminal device determines which TCI is activated by MAC-CE based on the RRC signaling.

[0213] 5. Resources.

[0214] In communication protocols, reference signals are configured in the form of resources. Network devices configure various reference signals to terminals in the form of resources. A resource is a configuration information unit, which usually includes parameters related to a reference signal, such as the time-frequency resource location of the reference signal, the number of ports, and the time domain type (periodic / semi-static / aperiodic).

[0215] Resources can be either uplink or downlink signal resources. Network devices can configure different reference signal resources via RRC signaling.

[0216] 6. Reference signal.

[0217] Network devices can configure different reference signals for terminal devices. Uplink reference signals include, but are not limited to: sounding reference signal (SRS) and demodulation reference signal (DM-RS). Downlink reference signals include, but are not limited to: CSI-RS, channel state information reference signal interference measurement reference signal (CSI-IM RS), cell specific reference signal (CS-RS), user equipment specific reference signal (US-RS), DM-RS, and synchronization signal / physical broadcast channel block (SS / PBCH block). The SS / PBCH block can be abbreviated as synchronization signal block (SSB). CSI-RS also includes: non-zero power CSI-RS (NZP CSI-RS) and zero power CSI-RS (ZP CSI-RS).

[0218] The reference signal can be the reference signal of the serving cell. For example, the serving cell can be a primary cell (Pcell), a secondary cell (Scell), or a primary secondary cell (Pscell). Among them, a cell with a primary component carrier (PCC) can be called a Pcell, and a cell with a secondary component carrier (SCC) can be called an Scell.

[0219] The reference signal can be the reference signal of the neighboring cells of the serving cell (such as the reference signal of the cell corresponding to the additional physical cell identifier (additional PCI)).

[0220] The reference signal can also be a reference signal associated with the handover candidate cell configuration. The handover candidate cell can also be called a candidate cell or a neighboring cell. The handover candidate cell can be the current serving cell or a non-serving cell. The physical cell identifier (PCI) of the handover candidate cell is different from that of the current primary cell (Pcell).

[0221] 7. Reference signal resource index, reference signal resource identifier, reference signal resource indicator.

[0222] Specifically, the network device configures one or more reference signal resources for the terminal device. These reference signal resources are used to carry reference signals. In this application, the terms "reference signal" and "reference signal resource" are interchangeable. During configuration, each reference signal resource corresponds to a reference signal resource index or a reference signal resource identifier (id) for distinguishing reference signal resources. Furthermore, the network device can configure one or more sets of reference signal resources for the terminal device. Each set of reference signal resources includes one or more reference signal resources, and each set corresponds to a reference signal resource set identifier. Within each set, each reference signal resource corresponds to a reference signal resource indicator. For example, a reference signal resource indicator of 0 indicates the first reference signal resource in the set, a reference signal resource indicator of 1 indicates the second reference signal resource, and so on. When the network device indicates or configures a reference signal resource in the set, or when the terminal device reports the measurement result of a reference signal resource in the set, the reference signal resource indicator can indicate the corresponding reference signal resource.

[0223] For example, a network device configures one or more NZP CSI-RS resources for a terminal device. These NZP CSI-RS resources are used to carry NZP CSI-RS signals. The terms "NZP CSI-RS" and "NZP CSI-RS resource" are interchangeable. Each NZP CSI-RS resource corresponds to a non-zero power CSI-RS resource identifier (NZP-CSI-RS-ResourceId) used to distinguish each NZP CSI-RS resource. Furthermore, a network device can configure one or more NZP CSI-RS resource sets. Each NZP CSI-RS resource set includes one or more NZP CSI-RS resources, and each NZP CSI-RS resource set includes an NZP CSI-RS resource set identifier (NZP-CSI-RS-ResourceSetId). Within each NZP CSI-RS resource set, each NZP CSI-RS resource corresponds to a CSI-RS resource indicator (CRI). For example, a CRI of 0 indicates the first NZP CSI-RS resource in the NZP CSI-RS resource set, a CRI of 1 indicates the second NZP CSI-RS resource in the same set, and so on. When a network device indicates or configures NZP CSI-RS resources within a specific NZP CSI-RS resource set, or when a terminal device measures and reports NZP CSI-RS resources within a specific NZP CSI-RS resource set, the CRI can be used to indicate the corresponding NZP CSI-RS resource. The NZP-CSI-RS-ResourceId can be understood as a global identifier within a configured NZP-CSI-RS-Resource, while the CRI can be understood as a local identifier within an NZP-CSI-RS-Resource within the same NZP CSI-RS resource set.

[0224] For example, a network device configures one or more ZP CSI-RS resources for a terminal device. These ZP CSI-RS resources are used to carry ZP CSI-RS. The terms "ZP CSI-RS" and "ZP CSI-RS resource" are often used interchangeably. Each NP CSI-RS resource corresponds to a Zero Power CSI-RS Resource Identifier (ZP-CSI-RS-ResourceId) used to distinguish each ZP CSI-RS resource. Furthermore, a network device can configure one or more ZP CSI-RS resource sets. Each ZP CSI-RS resource set includes one or more ZP CSI-RS resources, and each ZP CSI-RS resource set includes a ZP CSI-RS Resource Set Id. Within each ZP CSI-RS resource set, each ZP CSI-RS resource corresponds to a CRI. For example, a CRI of 0 indicates the first ZP CSI-RS resource in the ZP CSI-RS resource set, a CRI of 1 indicates the second ZP CSI-RS resource in the same set, and so on. ZP-CSI-RS-ResourceId can be understood as a global identifier within the configured ZP-CSI-RS-Resource, while CRI can be understood as a local identifier within the ZP-CSI-RS-Resource set.

[0225] For example, a network device may configure one or more Channel State Information Interference Measurement (CSI-IM) resources for a terminal device. These CSI-IM resources carry the Channel State Information Interference Measurement Reference Signal (CSI-IM RS). The terms CSI-IM RS and CSI-IM resource are interchangeable. Each CSI-IM resource corresponds to a CSI-IM resource identifier (CSI-IM-ResourceId) used to distinguish each CSI-IM resource. Furthermore, the network device may configure one or more CSI-IM resource sets. Each CSI-IM resource set includes one or more CSI-IM resources, and each CSI-IM resource set includes a CSI-IM resource set identifier (CSI-IM-ResourceSetId). Within a CSI-IM resource set, each CSI-IM resource corresponds to a CRI. For example, a CRI of 0 indicates the first CSI-IM resource in the set, a CRI of 1 indicates the second CSI-IM resource, and so on. When a network device indicates or configures CSI-IM resources within a specific CSI-IM resource set, or when a terminal device measures and reports CSI-IM resources within a specific CSI-IM resource set, the corresponding CSI-IM resource can be indicated using the CRI. CSI-IM-ResourceId can be understood as a global identifier within a configured CSI-IM resource, while CRI can be understood as a local identifier within a CSI-IM resource set.

[0226] For example, a network device configures one or more SSB resources for a terminal device. These SSB resources are used to carry SSBs. The terms "SSB" and "SSB resource" are interchangeable. Each SSB resource corresponds to an SSB resource index (SSB-Index) used to distinguish each SSB resource. Furthermore, a network device can configure one or more SSB resource sets. Each SSB resource set includes one or more SSB resources, and each SSB resource set includes an SSB resource set identifier (CSI-SSB-ResourceSetId). Within an SSB resource set, each SSB resource corresponds to an SSB resource indicator (SS / PBCH block resource indicator, SSBRI). For example, an SSBRI of 0 indicates the first SSB resource in the SSB resource set, an SSBRI of 1 indicates the second SSB resource, and so on. When a network device indicates or configures SSB resources within an SSB resource set, or when a terminal device measures and reports SSB resources within an SSB resource set, the SSBRI can be used to indicate the corresponding SSB resource. SSB-Index can be understood as a global identifier in the configured SSB resources, while SSBRI can be understood as a local identifier in the SSB resources within the SSB resource set.

[0227] For example, a network device configures one or more SRS resources for a terminal device. These SRS resources are used to carry SRS. The terms "SRS" and "SRS resource" are interchangeable. Each SRS resource corresponds to an SRS resource index (SRS-ResourceId) used to distinguish each SRS resource. Furthermore, a network device can configure one or more SRS resource sets. Each SRS resource set includes one or more SRS resources, and each SRS resource set includes an SRS resource set identifier (SRS-ResourceSetId). Within an SRS resource set, each SRS resource corresponds to an SRS resource indicator (SRI). For example, an SRI of 0 indicates the first SRS resource in the SRS resource set, an SRI of 1 indicates the second SRS resource, and so on. When a network device indicates or configures SRS resources within an SRS resource set, or when a terminal device reports SRS resources within an SRS resource set, the corresponding SRS resource can be indicated using the SRI. SRS-ResourceId can be understood as a global identifier in the configured SRS resource, while SRI can be understood as a local identifier in the SRS resource set.

[0228] The terminal device can be configured with one or more candidate cells, and the configuration of each candidate cell can include the configuration of reference signal resources. The reference signal carried by these reference signal resources can be an SSB (Security Signal Branch), CSI-RS (Central Signal Indicator), etc. This application embodiment mainly uses CSI-RS as an example for illustrative explanation.

[0229] In mobile communication systems, terminal devices measuring signals transmitted by network devices and reporting the measurement results is a common method to help network devices determine transmission parameters. For example, a network device may transmit multiple signals using different time-domain resources or different beams. The terminal device measures these multiple signals and reports the corresponding measurement results for each signal, thereby helping the network device determine the transmission parameters used for communication transmission. These parameters may include beamforming and channel coding rate.

[0230] In scenarios involving terminal devices moving between multiple cells, network devices need to determine, based on the measurement results of reference signals from candidate cells (not only geographically but also logically) fed back by the terminal, whether the terminal device should prepare for cell handover, whether to perform cell handover, or which candidate cell to hand over to. For example, when the network device decides that the terminal device should perform cell handover, the network device sends cell handover signaling to the terminal. Specifically, this involves the following steps:

[0231] Step 1: The network device sends measurement resources and reports configuration information.

[0232] The network device sends a report configuration (ReportConfig) for the serving cell. This report configuration is associated with the reference signal resources of one or more candidate cells. The report configuration also includes the content information to be reported, such as the number of candidate cells L for which the terminal reports measurement results, the number of reference signals M reported by each cell, and whether to report the measurement results of the current serving cell.

[0233] Step 2: The terminal device measures the reference signal and reports the measurement results.

[0234] The measurement results include measurements from L cells, with each cell containing measurements of M reference signals. Each reference signal measurement includes a reference signal resource index (e.g., SSBRI) and corresponding signal strength information (e.g., RSRP or differential RSRP). Currently, only SSB resources of candidate cells are supported for measurement, reporting the SSB's RSRP or differential RSRP (i.e., the difference from the reported maximum RSRP).

[0235] Step 3: The network device sends a cell handover signaling message. This message instructs the terminal to hand over to the target candidate cell. Correspondingly, the terminal device receives the cell handover signaling message.

[0236] Figure 4 is a schematic diagram of a cell handover scenario applicable to an embodiment of this application. As shown in Figure 4, the terminal device is located in the serving cell and receives cell handover signaling. This cell handover signaling is used to indicate handover to candidate cell #2. The terminal device may handover to candidate cell #2.

[0237] The cell handover signaling is L1 / L2 triggered mobility cell switch command medium access control (LTM cell switch command MAC CE) signaling. It should be noted that in this application, the cell handover signaling and the L1 / L2 triggered mobility cell switch command medium access control – control element – ​​can be described interchangeably.

[0238] Figure 5 is a schematic diagram of the MAC CE applicable to an embodiment of this application. As shown in Figure 5, the cell handover signaling includes the following information:

[0239] (1) C: Indicates whether the MAC-CE includes CFRA-related fields (such as random access preamble index, synchronization signal block / physical broadcast channel index (SSB / PBCH index), physical random access channel (PRACH) mask index, auxiliary uplink / normal uplink (S / U), repetition number). A value of 1 for the C field indicates inclusion; a value of 0 indicates exclusion.

[0240] (2) Target Config ID: This indicates the candidate target configuration index for cell handover, corresponding to candidate cell index-1 (ltm-CandidateId-1), indicating that the handover should be to the target candidate cell corresponding to ltm-CandidateId-1. The Target Config ID field is indicated by 3 bits.

[0241] (3) TA command: Timing advance (TA) for the target candidate cell. A value of all 1s in this field indicates invalidity (i.e., no valid TA is indicated).

[0242] (4) TCI state ID: Indicates the TCI state of the target candidate cell (indicates one from the TCI state list in ltm-candidate);

[0243] (5) UL TCI state ID: Indicates the UL TCI state of the target candidate cell (one is indicated from the UL TCI state list in ltm-candidate). (5) above exists only in separate mode. When the terminal device uses joint mode, it transmits using the TCI state indicated by the TCI state ID in (4) above. When the terminal device uses separate mode, in the downlink direction, it transmits using the TCI state indicated by the TCI state ID in (4) above. In the uplink direction, it transmits using the UL TCI state indicated by the UL TCI state ID in (5) above.

[0244] (6) Random Access Preamble index: Indicates the preamble ID of CFRA, used to trigger CFRA.

[0245] (7) SSB / PBCH index: Indicates the SSB corresponding to CFRA.

[0246] (8) PRACH Mask index: Used to indicate an RO from the random access channel occasion (RACH occasion, RO) associated with the above SSB. When the repetition number is non-zero, the terminal ignores this field.

[0247] (9) Repetition number: The number of times the CFRA preamble is repeated (the field value k indicates that it is sent 2k times, and 0 indicates that it is not sent repeatedly). The length of this field is 2 bits.

[0248] (10) S / U: Indicates the uplink subcarrier of CFRA. 1 indicates supplementary uplink (SUL), and 0 indicates normal uplink (NUL).

[0249] (11)R: Reserved field.

[0250] Currently, communication systems support measurement based on the SSB of candidate cells to obtain the RSRP of candidate cells for cell handover. That is, before cell handover, the terminal equipment measures the SSB to obtain the RSRP of the candidate cell (this RSRP is generally used to determine one or more beam strengths of the candidate cell). Release 19 supports obtaining RSRP and other CSI information (e.g., signal-to-interference-plus-noise ratio, precoding matrix indicator (PMI), rank indicator (RI), layer indicator (LI), channel quality indicator (CQI), or codebook index i1, etc.) through CSI-RS measurement of candidate cells. To accommodate transmission performance and the measurement complexity of terminal equipment, CSI can be obtained based on CSI-RS measurement either before or after cell handover. However, no solution has yet been designed to accommodate both scenarios, thus failing to guarantee system transmission performance.

[0251] In view of this, embodiments of this application provide a method and communication device for measuring reference signal resources, which can be compatible with measuring the reference signal resources of candidate cells before and after receiving cell handover signaling, thereby improving system communication performance while reducing the measurement complexity of terminal equipment and reducing signaling overhead.

[0252] The communication method provided by the embodiments of this application will be described in detail below with reference to the accompanying drawings, and can be applied to the communication system shown above. It should be understood that the embodiments of this application can be applied to scenarios where the sending end and the receiving end communicate. Specifically, the technical solution of this application is applicable to uplink transmission, downlink transmission, or sidelink transmission scenarios, etc.

[0253] It should also be understood that the embodiments shown below do not specifically limit the structure of the execution subject of the method provided in the embodiments of this application. As long as communication can be performed according to the method provided in the embodiments of this application by running the code or program that records the method provided in the embodiments of this application. For example, the method provided in the embodiments of this application can be executed by a terminal device and a network device. Unless otherwise specified, "terminal device or network device" in this application can refer to the device itself, or a component in the device (e.g., a communication module, processor, circuit, chip, or chip system, etc.), or it can be a logic module or software that can implement all or part of the device functions.

[0254] Figure 6 is a flowchart illustrating a method for measuring reference signal resources according to an embodiment of this application. As shown in Figure 6, the method includes several steps, and details not covered herein can be found in existing related descriptions.

[0255] S610, the network device sends the first signaling to the terminal device;

[0256] Correspondingly, the terminal device receives the first signaling from the network device.

[0257] The first signaling is used to instruct the terminal device to switch from the serving cell to the first cell (also known as the target cell);

[0258] For example, the first signaling includes a target configuration ID field, which can be used to indicate the identifier of the first cell or to indicate the candidate cell index-1 (ltm-CandidateId-1) corresponding to the first cell.

[0259] For example, the first signaling may be called cell switch command (CSC), or layer 1 / layer 2 triggered mobility (LTM) cell switch command MAC CE, or handover signaling, etc., and its specific name is not limited.

[0260] For example, the first signaling may be carried on RRC signaling, MAC CE signaling, DCI signaling, or other signaling, without limitation.

[0261] In this application, the terms "cell," "serving cell," and "component carrier (CC)" are used interchangeably. A serving cell can be a primary cell (Pcell), a secondary cell (Scell), or an auxiliary primary cell (Pscell). Specifically, a cell with a primary component carrier (PCC) can be called a Pcell, and a cell with a secondary component carrier (SCC) can be called an Scell. Furthermore, a cell can also configure corresponding candidate cells for neighboring cells (e.g., additional PCI), candidate cells, or LTM. Optionally, a candidate cell can include the serving cell, and a candidate cell can include a target cell, wherein the serving cell can be the target cell.

[0262] In this application, "before cell handover" can be understood as: before the terminal device receives the cell handover signaling. "During cell handover" can be understood as: after the terminal device receives the cell handover signaling, but before the cell handover is completed. "After cell handover" can be understood as: the terminal device receives the cell handover signaling and completes the cell handover. "During cell handover" as described in this application can also be called "when cell handover is happening," and "after cell handover is completed" can also be called "after cell handover." The cell handover described in this application can also be called handover, or LTM cell handover, etc. RSRP can also be called layer 1 reference signal received power (L1-RSRP), and SINR can also be called layer 1 signal to interference plus noise ratio (L1-SINR), and these are not limited thereto.

[0263] In this application, the network device can configure one or more candidate cells for a terminal device, or in other words, the terminal device can be configured with one or more candidate cell configurations, wherein the configuration of each candidate cell may include the configuration of reference signal resources. The network device transmits reference signals on the reference signal resources in the configuration of each candidate cell. The terminal device measures the reference signals on the reference signal resources in the configuration of each candidate cell and transmits the measurement results of the reference signals of one or more candidate cells to the network device. The one or more candidate cells include a first cell. The network device determines the first cell based on the received measurement results of the reference signals of one or more candidate cells. For example, the first cell has better signal quality, and the signal quality of this cell is better than the signal quality of the serving cell of the terminal device. The network device can send a first signaling to the terminal device, thereby instructing the terminal device to switch to the first cell.

[0264] Optionally, the embodiment shown in FIG6 further includes step S601 (not shown in the figure). It should be noted that there is no fixed execution order between the above steps S610 and S601, and this application does not limit this. For example, step S610 may be executed first, followed by step S601; or step S601 may be executed first, followed by step S610; or, depending on the situation, steps S610 and S601 may be executed simultaneously.

[0265] S601, the network device sends the fourth signaling to the terminal device;

[0266] Correspondingly, the terminal device receives the fourth signaling from the network device.

[0267] The fourth signaling is used to trigger the terminal device to report the channel measurement results of the reference signal resources of the first cell. In other words, the fourth signaling is used to trigger the terminal device to report the channel measurement results of the reference signal resources of the first cell to the first cell after receiving the first signaling.

[0268] For example, the fourth signaling can be carried on RRC signaling, MAC CE signaling, or DCI signaling.

[0269] For example, the fourth signaling includes at least one of the following: an identifier or index of the candidate cell, trigger status information, a report configuration identifier, a reference signal resource identifier, or a reference signal resource set identifier.

[0270] The identifier or index of a candidate cell can be the candidate cell identifier corresponding to the candidate cell (e.g., ltm-CandidateId), or it can be the candidate cell identifier-1 corresponding to the candidate cell (e.g., ltm-CandidateId-1), used to determine which candidate cell's reference signal resource measurement is triggered. For example, if the identifier or index of the candidate cell is the identifier or index of the first cell, then the third signaling is used to trigger the measurement of the reference signal resource of the first cell.

[0271] Trigger status information is used to indicate a first trigger status. The first trigger status is one of the trigger statuses activated by the network device for the terminal device, or one of the trigger statuses indicated or configured by the network device. For example, the first trigger status is associated with one or more reporting configurations of the serving cell. The one or more reporting configurations are associated with the reference signal resources of the first cell. The reference signal resources are used to carry reference signals. The terminal device can determine the reference signal resources of the first cell based on the association between the first trigger status, the reporting configurations, and the reference signal resources, and thus determine the channel measurement results to be reported for the reference signal resources of the first cell. The trigger status information can be a trigger status identifier or a CSI request field.

[0272] The report configuration identifier is used to indicate one or more report configurations for the serving cell. For example, the one or more report configurations may be associated with the reference signal resources of a first cell. The terminal device determines the channel measurement results for reporting the reference signal resources of the first cell based on the report configuration identifier and the association between the report configuration identifier and the reference signal resources.

[0273] Reference signal resource identifiers are used to indicate one or more reference signal resources.

[0274] The reference signal resource set identifier is used to indicate one or more reference signal resource sets.

[0275] In one implementation, the fourth signaling may include any of the aforementioned information, thereby enabling the terminal device to determine the reference signal resources of the first cell. In another implementation, the fourth signaling may include multiple of the aforementioned information. For example, the fourth signaling may include trigger status information and a report configuration identifier. In this implementation, the report configuration identifier is used to indicate one of one or more report configurations associated with the first trigger status indicated by the trigger status information. The terminal device determines the corresponding report configuration based on the trigger status information and the report configuration identifier. Then, the terminal device determines which reference signal resources' channel measurement results to report based on the report configuration and the association between the report configuration and the reference signal resources. In yet another implementation, the fourth signaling includes a reference signal resource set identifier and an identifier or index of a candidate cell, where the identifier or index of the candidate cell is the identifier or index of the first cell. The terminal device can determine which reference signal resources in the reference signal resource set corresponding to the reference signal resource set identifier of the first cell should be reported as channel measurement results.

[0276] Optionally, the first signaling in step S610 and the fourth signaling in step S601 may be the same signaling or different signaling; this application does not limit this.

[0277] Optionally, the first signaling in step S610 above and the second signaling in step S608 below can be the same signaling or different signaling, and this application does not limit this.

[0278] Optionally, the first signaling in step S610 above and the third signaling in step S609 below can be the same signaling or different signaling, and this application does not limit this.

[0279] Optionally, the embodiment shown in FIG6 further includes step S602 (not shown in the figure). Optionally, step S602 may be performed before step S610. Optionally, if the embodiment shown in FIG6 further includes step S601, step S602 may be performed before or after step S601.

[0280] S602, the network device sends DCI to the terminal device;

[0281] Correspondingly, the terminal device receives DCI from the network device.

[0282] DCI is used to schedule the first signaling.

[0283] Optionally, the embodiment shown in FIG6 further includes step S603 (not shown in the figure). Optionally, step S603 may be performed after step S610.

[0284] S603, the terminal device sends a feedback signaling to the network device;

[0285] Correspondingly, the network device receives feedback signaling from the terminal device.

[0286] Feedback signaling is signaling that responds to the first signaling. For example, the feedback signaling is a hybrid automatic repeat request acknowledge (HARQ-ACK) signaling, which is an acknowledgment (ACK) of the PDSCH feedback carrying the first signaling.

[0287] Optionally, the embodiment shown in FIG6 further includes step S604 (not shown in the figure). Optionally, step S604 may be performed before step S610. It should be noted that if the embodiment shown in FIG6 includes step S601, step S604 may be performed before step S601.

[0288] S604, The network device sends the first configuration information to the terminal device;

[0289] Correspondingly, the terminal device receives the first configuration information from the network device.

[0290] The first configuration information is used to indicate one or more reporting configurations for the serving cell.

[0291] For example, network devices can send this first configuration information via higher-layer signaling, such as RRC signaling. This report configuration can be a Layer 1 / L2 triggered mobility channel state information report configuration (LTM-CSI-ReportConfig). This report configuration is used to configure relevant parameters for the CSI reporting of candidate cells during cell handover.

[0292] In this application, one or more report configurations are associated with reference signal resources of a first cell; or, each of the one or more report configurations is associated with a resource configuration, and the resource configurations associated with the one or more report configurations include the reference signal resources of the first cell. In other words, a report configuration is associated with one or more reference signal resources of one or more candidate cells, specifically including the following two methods.

[0293] Implementation Method 1: The network device configures one or more resource configurations for the terminal device. Each resource configuration is associated with a report configuration. This resource configuration can be an LTM-CSI resource configuration (LTM-CSI-ResourceConfig). A resource configuration can be associated with reference signal resources of one or more candidate cells, and one or more candidate cell identifiers or indices. For example, there is a one-to-one correspondence between candidate cell identifiers or indices and reference signal resource identifiers or indices. Alternatively, a resource configuration can be associated with one or more sets of reference signal resources, and one or more candidate cell identifiers or indices. Each set of reference signal resources includes one or more reference signal resources of a candidate cell. For example, there is a one-to-one correspondence between reference signal resource set identifiers and candidate cell identifiers or indices.

[0294] Implementation Method 2: A report configuration is directly associated with the reference signal resources of one or more candidate cells, or a report configuration is directly associated with a set of reference signal resources of one or more candidate cells. For example, the report configuration includes reference signal resource identifiers or indices for one or more candidate cells, with a one-to-one correspondence between the candidate cell identifiers or indices and the reference signal resource identifiers or indices. Alternatively, the report configuration includes a set identifier for reference signal resources of one or more candidate cells, with a one-to-one correspondence between the set identifier and the candidate cell identifier or index.

[0295] Optionally, the first configuration information is also used to configure the reference signal resources of one or more candidate cells. Of course, the reference signal resources of the one or more candidate cells can also be configured using other information, and this application does not limit this.

[0296] Optionally, the embodiment shown in FIG6 further includes step S605 (not shown in the figure). It should be noted that there is no fixed execution order between step S605 and steps S604 and S606, and this application does not limit this. For example, step S605 may be executed first, followed by step S604; or step S604 may be executed first, followed by step S605; or, depending on the situation, steps S605 and S604 may be executed simultaneously. For example, step S605 may be executed first, followed by step S606; or step S604 may be executed first, followed by step S606; or, depending on the situation, steps S605 and S606 may be executed simultaneously.

[0297] S605, the network device sends the second configuration information to the terminal device;

[0298] Correspondingly, the terminal device receives the second configuration information from the network device.

[0299] The second configuration information is used to instruct the terminal device to measure the reference signal resources before or after receiving the first signaling.

[0300] In other words, the network device can also configure the terminal device to measure the reference signal resources of the candidate cell and / or report the channel measurement results of the candidate cell using either Method 1 or Method 2 involved in step S607 below. For example, if the network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell and / or report the channel measurement results of the candidate cell using Method 1, then the terminal device uses Method 1; as another example, if the network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell and / or report the channel measurement results of the candidate cell using Method 2, then the terminal device uses Method 2.

[0301] In one possible scenario, if the terminal device only supports method two and does not support method one, then the terminal device can directly use method two, meaning that the network device does not need to send the second configuration information, and step S605 does not need to be executed.

[0302] In one possible scenario, if the terminal device only supports method one and does not support method two, then the terminal device can use method one, meaning that the network device does not need to send the second configuration information, and step S605 does not need to be executed.

[0303] In one possible scenario, if the terminal device supports both mode 1 and mode 2, then the terminal device can use either mode 1 or mode 2. In this case, the network device needs to send the second configuration information, and step S605 needs to be executed. In other words, step S605 can be executed only if the terminal supports both mode 1 and mode 2.

[0304] Optionally, if the terminal device supports both Mode 1 and Mode 2, that is, in step S607 below, the terminal device can instruct the terminal device to support measuring the reference signal resources before receiving the first signaling and / or reporting the channel measurement results before receiving the first signaling by sending capability information; and instruct the terminal device to also support measuring the reference signal resources after receiving the first signaling and / or reporting the channel measurement results after receiving the first signaling, then the network device can send second configuration information to the terminal device, instructing the terminal device to use Mode 1 or Mode 2 to measure the reference signal resources of the candidate cell and / or report the channel measurement results of the candidate cell.

[0305] It is understandable that when a terminal device uses Method 1 to measure the reference signal resources of a candidate cell and / or report the channel measurement results of the candidate cell, it may mean that the terminal device only supports Method 1, and / or that the network device instructs the terminal device to use Method 1 through the second configuration information. Similarly, when a terminal device uses Method 2 to measure the reference signal resources of a candidate cell and / or report the channel measurement results of the candidate cell, it may mean that the terminal device only supports Method 2, and / or that the network device instructs the terminal device to use Method 2 through the second configuration information; there is no limitation on this.

[0306] Optionally, the embodiment shown in FIG6 further includes step S606 (not shown in the figure). It should be noted that there is no fixed execution order between step S606 and steps S605 and S604, and this application does not limit this.

[0307] S606, the network device sends third configuration information to the terminal device;

[0308] Correspondingly, the terminal device receives third configuration information from the network device.

[0309] The third configuration information is used to indicate a first parameter, which is associated with a reporting configuration. This first parameter instructs the terminal device, upon receiving the first signaling, to directly report the channel measurement results of the reference signal resources associated with the reporting configuration to the first cell. Alternatively, the first parameter instructs the terminal device, upon receiving the first signaling, whether to directly report the channel measurement results of the reference signal resources associated with the reporting configuration to the first cell. For example, if the first parameter instructs the terminal device to directly report the channel measurement results of the reference signal resources associated with the reporting configuration to the first cell after receiving the first signaling, the terminal device will directly report the channel measurement results of the reference signal resources associated with the reporting configuration to the first cell without additional signaling. If the first parameter instructs the terminal device not to report the channel measurement results of the reference signal resources associated with the reporting configuration to the first cell after receiving the first signaling, the terminal device will not report the channel measurement results of the reference signal resources associated with the reporting configuration after receiving the first signaling. Optionally, the terminal device only reports the measurement results of the reference signal resources of the first cell associated with the reporting configuration to the first cell.

[0310] For example, the terminal device may directly send the channel measurement results of the reference signal resources associated with the report configuration to the first cell under one or more of the following conditions: for example, the reference signal resources associated with the report configuration include the reference signal resources of the target cell; and / or, the report configuration is associated with the reference signal resources of only one candidate cell, and the candidate cell is the first cell.

[0311] Alternatively, the network device can configure one or more reporting configurations and one or more candidate cells for the terminal device. The multiple reporting configurations correspond one-to-one with the multiple candidate cells. In other words, one reporting configuration is associated with the reference signal resources of one candidate cell, and each candidate cell is associated with a reporting configuration for reporting channel measurement results (e.g., CSI other than RSRP and SINR). For example, after receiving the first signaling, the terminal device can directly report the channel measurement results corresponding to the reporting configuration containing the reference signal resources of the first cell.

[0312] Optionally, the embodiment shown in FIG6 further includes step S607 (not shown in the figure). Optionally, step S607 may be performed before step S604.

[0313] S607, The terminal device sends its capability information to the network device;

[0314] Correspondingly, network devices receive capability information from terminal devices.

[0315] The capability information of the terminal device includes at least one of the following:

[0316] (1) The terminal device supports measuring the reference signal resources of the candidate cell. In other words, the terminal device supports obtaining the channel state information of the candidate cell, or the terminal device supports obtaining the channel measurement results of the candidate cell.

[0317] (2) The terminal device supports measuring the reference signal resources of the candidate cell before receiving the first signaling. In other words, the terminal device supports obtaining the channel state information of the candidate cell before receiving the first signaling.

[0318] (3) The terminal device supports measuring the reference signal resources of the candidate cell after receiving the first signaling. In other words, the terminal device supports obtaining the channel state information of the candidate cell after receiving the first signaling.

[0319] (4) The terminal device supports reporting the measurement results of the reference signal resources of the first cell (i.e., the target cell) after receiving the first signaling. In other words, the terminal device supports reporting the channel state information of the first cell to the first cell after receiving the first signaling.

[0320] It should be noted that the capability information reported by the terminal device in step S607 above can be understood as: capability information of the candidate cells of the terminal device. Therefore, the capability information of the terminal device can be replaced with: capability information of the candidate cells of the terminal device, without specifying its name.

[0321] For ease of description and understanding, the terminal device's capability information, such as its ability to measure the reference signal resources of candidate cells after receiving the first signaling, can be considered as Method 1. Alternatively, the terminal device's ability to measure candidate cells after receiving the first signaling and report the channel measurement results of candidate cells after receiving the first signaling can also be considered as Method 2. The terminal device's capability information, such as its ability to measure the reference signal resources of candidate cells before receiving the first signaling, can also be considered as Method 2. In other words, the terminal device's ability to measure the reference signal resources of candidate cells before receiving the first signaling and report the channel measurement results of candidate cells after receiving the first signaling can also be considered as Method 2. Both Method 1 and Method 2 can be collectively referred to as the methods by which the terminal device obtains the channel state information of candidate cells.

[0322] In one implementation, the terminal device may report whether it supports Method 1 and / or Method 2 through one or more terminal capability parameters; or, the terminal device may report whether it supports Method 1 through a single terminal capability parameter; or, the terminal device may report whether it supports Method 2 through a single terminal capability parameter; or, if the terminal device supports the acquisition of channel state information (e.g., CSI) of candidate cells or the acquisition of channel measurement results of candidate cells, it can be considered to support Method 1 without needing to report additional terminal capability parameters; or, if the terminal device supports the acquisition of channel state information (e.g., CSI) of candidate cells or the acquisition of channel measurement results of candidate cells, it can be considered to support Method 2 without needing to report additional parameters; or, if the terminal device supports Method 2, it can be considered to support both Method 1 and Method 2 without limitation; or, the terminal device may report one or more of Method 1 and Method 2 through a single terminal capability parameter; or, the terminal device may default to supporting Method 1 without needing to report any terminal capability parameters.

[0323] Regarding the determination of the capability information of the terminal device, this application does not limit the scope of the application. In one implementation, the terminal device can indicate whether it supports a capability by whether or not it reports the capability information. For example, if the terminal device reports the capability information, it indicates that the terminal device supports the capability indicated by the capability information; if the terminal device does not report the capability information, it indicates that the terminal device does not support the capability indicated by the capability information. In another implementation, the terminal device can also indicate whether it supports a capability by reporting a parameter. For example, if the terminal device reports the capability information, it indicates that the terminal device supports the capability indicated by the capability information; if the terminal device reports that it does not support the capability indicated by the capability information, it indicates that the terminal device does not support the capability indicated by the capability information. For example, the size of the reporting parameter can be 1 bit, where bit "1" indicates that the terminal device supports the capability, and bit "0" indicates that the terminal device does not support the capability. Therefore, when the terminal device reports bit "1", it means that the terminal device supports the capability; when the terminal device reports bit "0", it means that the terminal device does not support the capability, and vice versa. In another implementation, if the terminal device supports some of the capabilities indicated by the aforementioned capability information, then the terminal device must also support other capabilities indicated by the capability information. That is, if the terminal device does not report the other capabilities, it also means that the terminal device supports the other capabilities. This application does not limit this.

[0324] Optionally, the embodiment shown in FIG6 further includes step S608 (not shown in the figure).

[0325] S608, the network device sends a second signaling message to the terminal device;

[0326] Correspondingly, the terminal device receives a second signaling from the network device.

[0327] The second signaling is used to activate the reference signal resources of the candidate cell. Optionally, the reference signal resources are semi-persistent reference signal resources. The activated reference signal resources of the candidate cell include the reference signal resources of the first cell.

[0328] For example, the second signaling may be carried in MAC CE signaling or other signaling.

[0329] For example, the second signaling is carried in the MAC CE signaling of the PDSCH, and the feedback signaling corresponding to the second signaling is HARQ-ACK signaling. HARQ-ACK is an ACK for the PDSCH feedback carrying the second signaling, carried in the PUSCH or PUCCH. For example, the second signaling includes at least one of the following: an identifier or index of the candidate cell, a reference signal resource identifier or index of the candidate cell, a reference signal resource set identifier of the candidate cell, the TCI status of the reference signal resources of the candidate cell, or an indication field. The indication field is used to indicate whether the reference signal resources or reference signal resource set of the candidate cell is activated or deactivated. For example, the indication field is 1 bit in size, with bit "1" indicating the activation of the reference signal resources or reference signal resource set of the candidate cell, and bit "0" indicating the deactivation of the reference signal resources or reference signal resource set of the candidate cell; or, the indication field is 1 bit in size, with bit "0" indicating the activation of the reference signal resources or reference signal resource set of the candidate cell, and bit "1" indicating the deactivation of the reference signal resources or reference signal resource set of the candidate cell.

[0330] Optionally, the identifier or index of the candidate cell can be the candidate cell identifier (e.g., ltm-CandidateId) corresponding to the candidate cell, or it can be the candidate cell identifier-1 (e.g., ltm-CandidateId-1) corresponding to the candidate cell, used to determine which candidate cell's reference signal resource to activate or deactivate.

[0331] One possible implementation is that the second signaling includes an identifier or index of a candidate cell, an indication field, and a reference signal resource set identifier for the candidate cell. The candidate cell identifier or index is used to determine whether to deactivate or activate the reference signal resources of the candidate cell corresponding to the identifier or index. The reference signal resource set identifier is used to determine which reference signal resource set(s) of the candidate cell(s) to deactivate or activate. The indication field is used to indicate whether to activate or deactivate the reference signal resource set(s). For example, in the second signaling, the candidate cell identifier or index corresponds to a first cell, the indication field is used to indicate whether to activate or deactivate the reference signal resource set(s) of the first cell, and the reference signal resource set identifier(s) of the candidate cell(s) can be one or more, corresponding sequentially to one or more reference signal resource sets of the first cell. In this case, the second signaling is used to activate or deactivate one or more reference signal resource sets of the first cell(s).

[0332] Optionally, the reference signal resource set corresponding to the reference signal resource set identifier of the aforementioned candidate cell is a semi-persistent channel state information signal resource set (SP CSI-RS resource set), a semi-persistent non-zero power channel state information signal resource set (SP NZP CSI-RS Resource Set), or a semi-persistent channel state information reference signal interference measurement reference signal resource set (SP CSI-IM RS Resource Set).

[0333] Optionally, the embodiment shown in FIG6 further includes step S609 (not shown in the figure).

[0334] S609, the network device sends a third signaling message to the terminal device;

[0335] Correspondingly, the terminal device receives third signaling from the network device.

[0336] The third signaling is used to trigger the measurement of reference signal resources of the candidate cell. Optionally, the reference signal resources are aperiodic reference signal resources. The reference signal resources of the triggered candidate cell include the reference signal resources of the first cell.

[0337] For example, third signaling can be carried in DCI signaling or other signaling.

[0338] In one example, the third signaling is carried on the DCI. In one implementation, this DCI is used to schedule the first signaling, or to schedule downlink transmissions (this can be called a DL DCI). For example, any one of downlink control information format 1_0 (DCI format1_0), DCI format1_1, DCI format1_2, and DCI format1_3. In another implementation, this DCI includes a Channel State Information Request (CSI request) field, and is used to schedule uplink transmissions (this can be called a UL DCI). For example, any one of DCI 0_0, DCI0_1, DCI 0_2, and DCI0_3.

[0339] For example, the third signaling may include at least one of the following: the identifier or index of the candidate cell, trigger status information, report configuration identifier, reference signal resource identifier, or reference signal resource set identifier.

[0340] The identifier or index of a candidate cell can be the candidate cell identifier corresponding to the candidate cell (e.g., ltm-CandidateId), or it can be the candidate cell identifier-1 corresponding to the candidate cell (e.g., ltm-CandidateId-1), used to determine which candidate cell's reference signal resource measurement is triggered. For example, if the identifier or index of the candidate cell is the identifier or index of the first cell, then the third signaling is used to trigger the measurement of the reference signal resource of the first cell.

[0341] Trigger status information is used to indicate a first trigger state. The first trigger state is one of the trigger states activated by the network device for the terminal device, or one of the trigger states indicated or configured by the network device. For example, the first trigger state is associated with one or more reporting configurations of the serving cell, which in turn are associated with reference signal resources of the first cell. The terminal device can determine the network device's triggering of a measurement of the reference signal resources of the first cell based on the association between the first trigger state, the reporting configurations, and the reference signal resources. The trigger status information can be a trigger status identifier or a CSI request field.

[0342] The report configuration identifier is used to indicate one or more report configurations for the serving cell. For example, the one or more report configurations are associated with reference signal resources of a first cell, and the terminal device determines, based on the report configuration identifier and the association between the report configuration identifier and the reference signal resources, whether the network device should trigger a measurement of the reference signal resources of the first cell.

[0343] Reference signal resource identifiers are used to indicate one or more reference signal resources.

[0344] The reference signal resource set identifier is used to indicate one or more reference signal resource sets.

[0345] In one implementation, the fourth signaling may include any of the aforementioned information, thereby enabling the terminal device to determine the reference signal resources of the first cell. In another implementation, the fourth signaling may include multiple types of the aforementioned information. For example, the fourth signaling may include trigger status information and a report configuration identifier. In this implementation, the report configuration identifier is used to indicate one of one or more report configurations associated with the first trigger status indicated by the trigger status information. The terminal device determines the corresponding report configuration based on the trigger status information and the report configuration identifier. Then, the terminal device determines the reference signal resources of the first cell based on the report configuration and the association between the report configuration and the reference signal resources. In yet another implementation, the fourth signaling includes a reference signal resource set identifier and an identifier or index of a candidate cell, where the identifier or index of the candidate cell is the identifier or index of the first cell. The terminal device can then determine the reference signal resources in the reference signal resource set corresponding to the reference signal resource set identifier used to measure the first cell.

[0346] S620, the terminal device determines the timing for measuring the reference signal resources based on the first condition.

[0347] The measurement timing is (or can be replaced by indicating) the terminal device measuring the reference signal resources before or after receiving the first signaling, and the candidate cell includes the first cell.

[0348] In one possible implementation, the first condition may be that the terminal device supports the acquisition and / or reporting of channel measurement results (e.g., channel state information, CSI) of candidate cells. Other possible implementations of the first condition can be referred to the relevant descriptions of cases one to three below, which will not be explained here.

[0349] In this application, the terminal device determines the timing of the reference signal resource measurement based on the first condition. Alternatively, it can be described as follows: the terminal device determines the timing of the reference signal resource measurement when at least the first condition is met; or, the terminal device measures the reference signal resource before or after receiving the first signaling, and obtains the channel measurement result, when at least the first condition is met; or, the terminal device measures the reference signal resource before or after receiving the first signaling, and obtains the channel measurement result, etc., without limitation.

[0350] In this application, the reference signal is carried within a reference signal resource; the terms "reference signal" and "reference signal resource" are interchangeable. For example, the reference signal resource involved in this application may include, but is not limited to, CSI-RS resources, CS-RS resources, US-RS resources, DM-RS resources, or SSB resources. For ease of understanding, the following description primarily uses CSI-RS resources as the reference signal resource and a CSI-RS resource set as the illustrative example. Optionally, a reference signal resource set may also be called a reference signal resource list; for example, a CSI-RS resource set may also be called a CSI-RS resource list, and this is not limited thereto.

[0351] In this application, the channel measurement results may include at least one of the following: RSRP, SINR, PMI, RI, LI, CQI, i1, or the channel measurement results may include other CSI information besides RSRP and SINR, such as one or more of PMI, RI, LI, CQI, i1, without limitation.

[0352] In this application, a candidate cell can be understood as one or more cells that the network device indicates or configures for possible handover. Candidate cells may also include the terminal device's current serving cell. For example, the candidate cell index can be the ltm-CandidateId configured by the network. The ltm-CandidateId is associated with a PCI (physical cell identifier).

[0353] It should be noted that the reference signal resources measured by the terminal device are the reference signal resources of the candidate cells, and the channel measurement results obtained by the terminal device are the channel measurement results of the candidate cells. Understandably, if the terminal device measures the reference signal resources before receiving the first signaling, it can measure the reference signal resources of one or more candidate cells before receiving the first signaling, thus obtaining the channel measurement results of one or more candidate cells. In other words, the terminal device can measure the reference signal resources of one or more candidate cells in advance. After receiving the first signaling, the terminal device can directly report the channel measurement results of one or more candidate cells without waiting for measurement, reducing reporting latency and improving overall measurement performance. If the terminal device measures the reference signal resources after receiving the first signaling, it can measure the reference signal resources of the first cell (or target cell) among the candidate cells, obtaining the channel measurement results of the first cell, and then reporting the channel measurement results of the first cell. This reduces the power consumption of the terminal device, reduces the measurement complexity of the terminal device, and reduces the reporting overhead of the channel measurement results.

[0354] Below, based on different types of reference signal resources, examples are provided to illustrate the specific implementation methods for determining the measurement timing of reference signal resources under the first condition and by the terminal device.

[0355] Case 1: The reference signal resource is a periodic reference signal resource.

[0356] In the first possible implementation, the terminal measures the reference signal resources after receiving the first signaling.

[0357] The first condition also includes at least one of the following:

[0358] (1) The terminal device only supports measuring the reference signal resources of the candidate cell after receiving the first signaling. In other words, the terminal device only supports mode one, or the terminal device only supports obtaining the channel state information of the candidate cell after receiving the first signaling.

[0359] (2) The network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell after receiving the first signaling, or in other words, the terminal device is instructed or configured to measure the reference signal resources after receiving the first signaling;

[0360] For example, a network device can configure or instruct a terminal device to measure the reference signal resources of a candidate cell after receiving the first signaling by sending second configuration information (see step S605).

[0361] (3) The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling. In other words, the terminal device supports mode one and mode two, or the terminal device supports obtaining the channel state information of the candidate cell before and after receiving the first signaling.

[0362] (4) The terminal device does not support measuring reference signal resources before receiving the first signaling. In other words, the terminal device does not support mode two, or the terminal device does not support obtaining the channel state information of the candidate cell before receiving the first signaling.

[0363] (5) The terminal device supports the acquisition and / or reporting of channel measurement results (e.g., channel state information CSI) of candidate cells.

[0364] Example 1: If a network device instructs or configures a terminal device to measure the reference signal resources of a candidate cell after receiving the first signaling, and the terminal device supports measuring the reference signal resources of a candidate cell both before and after receiving the first signaling, then the terminal device will begin measuring the periodic reference signal resources of the candidate cell after receiving the first signaling.

[0365] Example 2: The terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells, and the terminal device does not support the measurement of reference signal resources of candidate cells before receiving the first signaling. It is understandable that the terminal device starts measuring the periodic reference signal resources of candidate cells after receiving the first signaling.

[0366] Example 3: If the terminal device only supports measuring the reference signal resources of the candidate cell after receiving the first signaling, then the terminal device will start measuring the periodic reference signal resources of the candidate cell after receiving the first signaling.

[0367] It should be understood that the above examples are merely illustrative for the purpose of understanding the solution, and other solutions are not excluded. That is, the first condition in this implementation can be any one of the above, or a combination of multiple conditions, without limitation.

[0368] In this application, the terminal device measures the periodic reference signal resources of the candidate cell after receiving the first signaling. This can be understood as the terminal device receiving the relevant configuration of the periodic reference signal resources of the candidate cell before receiving the first signaling, but performing the measurement only after receiving the first signaling.

[0369] For example, the timing of the periodic reference signal resources measured by the terminal device after cell handover is not limited in this application. It can be the first (or most recent) periodic reference signal resource timing after the first reference time has elapsed for a first duration; or, it can be any one or more periodic reference signal resource timings after the first reference time has elapsed for a first duration; or, it can be the first X (X is an integer greater than or equal to 1) periodic reference signal resource timings after the first reference time has elapsed for a first duration; or, it can be all periodic reference signal resource timings after the first reference time has elapsed for a first duration and before resource reporting; or, it can be the most recent periodic reference signal resource timing after the first reference time has elapsed for a first duration and before resource reporting; or, it can be all periodic reference signal resource timings after the first reference time has elapsed for a first duration and before CSI reference resources; or, it can be the most recent periodic reference signal resource timing after the first reference time has elapsed for a first duration and before CSI reference resources, etc., without limitation.

[0370] For example, the first duration can be the time corresponding to the terminal device sending the cell reconfiguration completion message. Optionally, the first duration can be configured or indicated by the network device, or reported through the terminal device's capability information, or determined by any one or more combinations specified in the protocol. For example, the first duration is a time offset value indicated or configured by the network device, such as a time offset value of a reference signal resource set indicated or configured by the network device. When the network device triggers the measurement of the reference signal resource set, the transmission start time of the reference signal resource set is the first reference time plus the time at which the time offset value is located. Optionally, the first duration can also be 0. Optionally, the first duration can also be determined jointly based on the terminal device's capability information and the network device's configuration information. For example, the terminal device reports a minimum first duration (also called a duration threshold), and the network device configures the first duration according to the minimum first duration, such as the first duration indicated or configured by the network device being greater than or equal to the minimum first duration. For example, the unit of the first duration can be a frame, subframe, time slot, symbol (e.g., orthogonal frequency division multiplexing (OFDM) symbol), millisecond (ms), or second (s), etc., which are not limited in this application.

[0371] In one example, the network device transmits a reference signal for the first cell at a first moment. Correspondingly, the terminal device begins measuring the reference signal of the first cell at the first moment to obtain the channel measurement result. Specifically, the terminal device begins measuring the periodic reference signal resource at the first moment, where the first moment is the moment when the first reference moment has elapsed for a first duration.

[0372] Understandably, the network device transmitting the reference signal of the first cell at the first moment can be described as: the network device starting to transmit the reference signal of the first cell at the first moment; or, the network device starting to transmit the reference signal resources of the first cell at the first moment; or, the network device starting to transmit the reference signal of the first cell from the first moment; or, the network device starting to transmit the reference signal resources of the first cell from the first moment; or, the network device starting to transmit the reference signal of the first cell from the start time of the transmission of the reference signal; or, the network device starting to transmit the reference signal resources of the first cell from the start time of the transmission of the reference signal.

[0373] Understandably, the terminal device obtaining the channel measurement result by measuring the reference signal of the first cell at the first moment can be described as follows: the terminal device starts measuring the reference signal of the first cell at the first moment; or, the terminal device starts measuring the reference signal resources of the first cell at the first moment; or, the terminal device starts measuring the reference signal of the first cell from the first moment; or, the terminal device starts measuring the reference signal resources of the first cell from the first moment; or, the terminal device starts measuring the reference signal of the first cell from the start time of the reference signal measurement; or, the terminal device starts measuring the reference signal resources of the first cell from the start time of the reference signal measurement.

[0374] Below, examples illustrate some possible implementations of the first reference time.

[0375] For example, the first reference time includes any of the following:

[0376] (1) The terminal device receives the DCI at the time of receiving the DCI, which is used to schedule the first signaling.

[0377] DCI can be referred to as DL DCI. For example, the format of DCI can be any one of DCI format1_0, DCI format1_1, DCI format1_2, and DCI format1_3.

[0378] In one implementation, the time slot where the DCI is located is n, and the first reference time is time slot n. Alternatively, if the time slot where the network device sends the DCI is n, the first reference time is time slot n. Alternatively, if the time slot where the terminal device receives the DCI is n, the first reference time is time slot n.

[0379] In another implementation, the time slot where DCI is located is n, and the first reference time is the time slot. Where, μ CSI-RS For configuring the subcarrier spacing for transmitting reference signals (e.g., CSI-RS), μ PDCCH For configuring the subcarrier spacing of the physical downlink control channel (PDCCH) for transmitting DCI, alternatively, if the time slot in which the network device transmits DCI is n, the first reference time is the time slot. Alternatively, if the time slot in which the terminal device receives DCI is n, then the first reference time is the time slot.

[0380] (2) The moment when the terminal device receives the first signaling;

[0381] In one implementation, the time slot where the first signaling is located is n, and the first reference time is time slot n. Alternatively, if the network device sends the first signaling in time slot n, the first reference time is time slot n. Alternatively, if the terminal device receives the first signaling in time slot n, the first reference time is time slot n.

[0382] In another implementation, the time slot where the first signaling occurs is n, and the first reference time is the time slot. Where μCSI-RS is the subcarrier spacing configuration for transmitting the reference signal (e.g., CSI-RS), μ PDCCH For configuring the subcarrier spacing of the PDSCH for sending the first signaling, alternatively, if the time slot in which the network device sends the first signaling is n, the first reference time is the time slot. Alternatively, if the time slot in which the terminal device receives the first signaling is n, then the first reference time is the time slot.

[0383] (3) The timing of sending feedback signaling by the terminal device. Feedback signaling is a signaling that responds to the first signaling.

[0384] In other words, the first reference time is the time when the terminal device sends the PUSCH carrying HARQ-ACK or the physical uplink control channel (PUCCH) carrying HARQ-ACK. HARQ-ACK is an ACK in response to the PDSCH carrying the first signaling.

[0385] In one implementation, the time slot where the feedback signaling resides is n, and the first reference time is time slot n. Alternatively, if the network device receives the feedback signaling in time slot n, the first reference time is time slot n. Similarly, if the terminal device sends the feedback signaling in time slot n, the first reference time is time slot n. The time slot where the feedback signaling resides can be understood as either the PUSCH carrying HARQ-ACK or the PUCCH carrying HARQ-ACK.

[0386] In another implementation, if the time slot containing the feedback signaling is n, then the first reference time is the time slot. Where, μ CSI-RS For configuring the subcarrier spacing for transmitting reference signals (e.g., CSI-RS), μ HARQ-ACK To configure the subcarrier spacing for sending feedback signaling, alternatively, if the time slot in which the network device receives feedback signaling is n, then the first reference time is time slot n. Alternatively, if the time slot in which the terminal device sends the feedback signaling is n, then the first reference time is the time slot.

[0387] (4) The time when the terminal device sends the feedback signaling after the second duration has elapsed;

[0388] In other words, the first reference time is the time when the terminal device sends the feedback signaling plus the second duration.

[0389] For example, the second duration can be 3 milliseconds (ms). Optionally, the second duration is related to one or more of the time required for the terminal device to parse the first signaling and the time required for the base station to process the feedback signaling.

[0390] In one implementation, the time slot where the feedback signaling resides is n, and the first reference time is... Alternatively, if the time slot in which the network device receives the feedback signaling is n, the first reference time is... Alternatively, if the time slot in which the terminal device sends the feedback signaling is n, the first reference time is... Configure the subcarrier spacing as μ HARQ-ACK At that time, the number of time slots corresponding to a subframe.

[0391] In another implementation, the time slot where the feedback signaling resides is n, and the first reference time is... μ CSI-RS For configuring the subcarrier spacing for transmitting reference signals (e.g., CSI-RS), μ HARQ-ACK Configure the subcarrier spacing for transmitting PUSCH or PUCCH carrying feedback signaling. Configure the subcarrier spacing as μ HARQ-ACK The time slot is the number of time slots corresponding to a subframe. Alternatively, if the time slot in which the terminal device sends feedback signaling is n, the first reference time is the time slot. Alternatively, if the time slot in which the network device receives the feedback signaling is n, then the first reference time is the time slot.

[0392] (5) The time when the terminal device sends the feedback signaling passes through the second and third time intervals. The third time interval is the duration of the cell handover interruption, which is the duration required for the terminal device to perform the first cell handover.

[0393] In other words, the first reference time is the time when the terminal device sends the feedback signaling plus the second and third durations.

[0394] In one implementation, the time slot where the feedback signaling resides is n, and the first reference time is... The third duration is x ms, where x is greater than or equal to 0. For a detailed explanation of the second duration, please refer to the relevant description above; it will not be repeated here. Alternatively, if the time slot in which the terminal device sends the feedback signaling is n, the first reference time is... Alternatively, if the time slot in which the network device receives the feedback signaling is n, then the first reference time is the time slot.

[0395] In another implementation, the time slot where the feedback signaling resides is n, and the first reference time is... Alternatively, if the time slot in which the terminal device sends the feedback signaling is n, the first reference time is... Alternatively, if the time slot in which the network device receives the feedback signaling is n, the first reference time is...

[0396] For example, the third duration can be determined by one or more of the following:

[0397] a. The time it takes for the terminal device to parse the configuration information of the first cell. For example, this time is T. LTM-RRC-processing T LTM-RRC-processing The time required for decoding the abstract syntax notation 1 (ASN.1) and performing validity / consistency checks on the configuration information of the first cell indicated in the first signaling. LTM-RRC-processing It can be 0 or 10ms. Refer to the communication protocol TS 38.133 for the specific value to use.

[0398] b. The time taken for the terminal device to process the configuration information of the first cell. For example, this time is T. LTM-processing T LTM-processing The processing time for the UE includes the time for applying target cell parameters and the time for layer 1 (L1) / layer 2 (L2) changes. LTM-processing For specific values ​​and definitions, please refer to the communication protocol TS 38.133.

[0399] c. The time required for the terminal device to accurately track and acquire timing information of the first cell. This time is T. first-RS T first-RS It can be 0, or it can be 3ms after the feedback signaling is sent, the time when the first SSB is sent by the first cell.

[0400] d. SSB processing time of the terminal device for the first cell.

[0401] Specifically, if the first signaling indicates a TCI state, but that TCI state has not been activated in advance or has been activated for too long, the terminal device needs to re-receive the SSB of the first cell to obtain synchronization information. This can be understood as the processing time of the terminal device for the SSB of the first cell. This time is T. RS-pro T RS-pro It can be 0 or 2ms. Refer to the communication protocol TS 38.133 for details.

[0402] (6) The time when the first cell handover is completed. For example, the time when the terminal device sends the first uplink message (first UL message) in the first cell. Another example is the time when the cell handover for the Random Access Channel (RACH) procedure is completed, corresponding to the time when the RACH procedure is completed. Yet another example is the time when the terminal device sends the cell reconfiguration completion message.

[0403] It should be noted that the first duration can be configured or indicated by the network device, reported by the terminal device based on capability information, or determined by any one or more combinations of communication protocols. For example, the first duration can be a time offset value indicated or configured by the network device, such as the time offset value used to trigger the measurement of a reference signal resource set. This reference signal resource set includes reference signal resources of the first cell. When the network device triggers the measurement of this reference signal resource set, the transmission start time of this reference signal resource set is the first reference time plus the time offset value. For example, the first duration can be 0, or the first duration can be jointly determined based on the terminal device's capability information and the network device's configuration. For example, the terminal device reports a minimum supported duration, and the network device configures the first duration based on this minimum duration. For example, the first duration can be greater than or equal to the minimum duration.

[0404] Optionally, the unit of the first duration can be Tc, Ts, a frame, subframe, time slot, symbol, millisecond, nanosecond, microsecond, or second, etc., and this application does not limit it in this regard. For example, T c =1 / (Δf) max ·N f ), Δf max =480·10 3 Hz, N f =4096, T s =1 / (Δf) ref ·N f,ref ), Δf ref =15·10 3 Hz, N f,ref =2048.

[0405] Therefore, after receiving the first signaling, the terminal device specifies the transmission time of the reference signal of the first cell sent by the network device and the reference signal of the first cell measured by the terminal device, so as to align the reference signal resources between the terminal device and the network device.

[0406] It should be noted that, under the first condition, when the terminal device receives the configuration of the periodic reference signal resource, the periodic reference signal resource can be considered as inactive and does not require measurement. In other words, the activation time of the periodic reference signal resource starts from the first reference time, or starts from the first reference time after a first duration, and ends when the configuration of the periodic reference signal resource is released.

[0407] In the second possible implementation, the terminal measures the reference signal resources before receiving the first signaling.

[0408] The first condition also includes at least one of the following:

[0409] (1) The terminal device supports measuring the reference signal resources of the candidate cell before receiving the first signaling. In other words, the terminal device only supports mode two, or the terminal device only supports obtaining the channel state information of the candidate cell before receiving the first signaling.

[0410] (2) The network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell before receiving the first signaling, or in other words, the terminal device is instructed or configured to measure the reference signal resources of the candidate cell before receiving the first signaling;

[0411] For example, a network device can configure or instruct a terminal device to measure the reference signal resources of a candidate cell before receiving the first signaling by sending second configuration information (see step S605).

[0412] (3) The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling. In other words, the terminal device supports mode one and mode two, or the terminal device supports obtaining the channel state information of the candidate cell before and after receiving the first signaling.

[0413] (4) The network equipment is not configured or instructed to measure the reference signal resources of the candidate cell after receiving the first signaling, or in other words, the terminal equipment is not configured to measure the reference signal resources of the candidate cell after receiving the first signaling.

[0414] (5) The terminal device supports the acquisition and / or reporting of channel measurement results (e.g., channel state information CSI) of candidate cells.

[0415] Example 1: If the terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell before receiving the first signaling, then the terminal device will start to perform the periodic reference signal resource measurement of the candidate cell after receiving the configuration information of the periodic reference signal resources and it taking effect.

[0416] Example 2: If the terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the network device does not configure or instruct the terminal device to measure the reference signal resources of the candidate cell before receiving the first signaling, then the terminal device will start to perform periodic reference signal resource measurement of the candidate cell after receiving the configuration information of the periodic reference signal resources and it takes effect.

[0417] Example 3: If the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells, and supports the measurement of reference signal resources before receiving the first signaling, and the network device does not configure or instruct the terminal device to measure the reference signal resources of candidate cells before receiving the first signaling, then the terminal device will start to perform periodic reference signal resource measurement of candidate cells after receiving the configuration information of periodic reference signal resources and it takes effect.

[0418] Example 4: If the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells, and supports the measurement of reference signal resources before receiving the first signaling, and the network device instructs or configures the terminal device to measure reference signal resources before receiving the first signaling, then after the terminal device receives the configuration information of periodic reference signal resources and it takes effect, it will start to perform periodic reference signal resource measurement of candidate cells.

[0419] It should be understood that the above examples are merely illustrative for the purpose of understanding the solution, and other solutions are not excluded. That is, the first condition in this implementation can be any one of the above, or a combination of multiple conditions, without limitation.

[0420] In this application, the terminal device measuring the periodic reference signal resources of the candidate cell before receiving the first signaling can be understood as: the terminal device receives the relevant configuration of the periodic reference signal resources of the candidate cell before receiving the first signaling, and performs the measurement before receiving the first signaling.

[0421] For example, the timing of which periodic reference signal resources the terminal device measures before cell handover is not limited in this application.

[0422] Optionally, the terminal device may stop measuring the periodic reference signal resources of the candidate cell after a first duration has elapsed from the first reference time.

[0423] Optionally, the terminal device may stop measuring the periodic reference signal resources of non-target cells (other cells in the candidate cells besides the first cell) after a first time period has elapsed from the first reference time.

[0424] It should be noted that, under the first condition, when the terminal device receives the configuration of the periodic reference signal resource, the periodic reference signal resource can be considered as inactive and does not require measurement. In other words, the periodic reference signal resource can be used after it is activated. The activation time of the periodic reference signal resource starts from the receipt of the higher-level configuration of the periodic reference signal resource (or, the higher-level configuration of the periodic reference signal resource becomes effective) and ends when the first reference time, or when the first reference time has elapsed for a first duration, or when the configuration of the periodic reference signal resource is released.

[0425] Case 2: The reference signal resource is a semi-persistent reference signal resource.

[0426] In the first possible implementation, the terminal measures the reference signal resources after receiving the first signaling.

[0427] The first condition also includes at least one of the following:

[0428] (1) The terminal device only supports measuring the reference signal resources of the candidate cell after receiving the first signaling. In other words, the terminal device only supports mode one, or the terminal device only supports obtaining the channel state information of the candidate cell after receiving the first signaling.

[0429] (2) The network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell after receiving the first signaling, or in other words, the terminal device is instructed or configured to measure the reference signal resources after receiving the first signaling;

[0430] For example, a network device can configure or instruct a terminal device to measure the reference signal resources of a candidate cell after receiving the first signaling by sending second configuration information (see step S605).

[0431] (3) The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling. In other words, the terminal device supports mode one and mode two, or the terminal device supports obtaining the channel state information of the candidate cell before and after receiving the first signaling.

[0432] (4) The terminal device does not support measuring reference signal resources before receiving the first signaling. In other words, the terminal device does not support mode two, or the terminal device does not support obtaining the channel state information of the candidate cell before receiving the first signaling.

[0433] (5) The terminal device receives a second signaling (e.g., MAC CE), which is used to activate the reference signal resource;

[0434] (6) The terminal device receives the second signaling after receiving the first signaling;

[0435] (7) The terminal device receives the second signaling before receiving the first signaling;

[0436] (8) The first signaling contains first information, which is used to trigger the measurement of reference signal resources;

[0437] (9) The terminal device receives the second signaling, and the second signaling takes effect after the first signaling is received;

[0438] (10) The terminal device receives a second signaling message, and the second signaling message contains second information, which is used to instruct the terminal device to measure the reference signal resources after receiving the first signaling message.

[0439] (11) The terminal device supports the acquisition and / or reporting of channel measurement results (e.g., channel state information CSI) of candidate cells.

[0440] Example 1: The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the terminal device receives the second signaling, and the second signaling contains second information, which is used to instruct the terminal device to measure the reference signal resources of the candidate cell after receiving the first signaling. The terminal device measures the reference signal resources after receiving the first signaling.

[0441] Example 2: The terminal device only supports measuring the reference signal resources of the candidate cell after receiving the first signaling, and the terminal device receives the second signaling before receiving the first signaling, and the terminal device measures the reference signal resources of the candidate cell after receiving the first signaling.

[0442] Example 3: The terminal device only supports measuring the reference signal resources of the candidate cell after receiving the first signaling, or the terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the terminal device receives the first signaling, the first signaling contains first information, the first information is used to trigger the measurement of the reference signal resources, and the terminal device measures the reference signal resources of the candidate cell after receiving the first signaling.

[0443] Example 4: The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling. The terminal device receives the second signaling, and the second signaling takes effect after receiving the first signaling. The terminal device measures the reference signal resources of the candidate cell after receiving the first signaling.

[0444] Example 5: The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell after receiving the first signaling.

[0445] Example 6: The terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells. The terminal device receives a second signaling, and the second signaling takes effect after the first signaling is received. The terminal device measures the reference signal resources of the candidate cell after receiving the first signaling.

[0446] Example 7: The terminal device supports measuring the reference signal resources of the candidate cell after receiving the first signaling. The terminal device receives the second signaling, and the second signaling takes effect after receiving the first signaling. The terminal device measures the reference signal resources of the candidate cell after receiving the first signaling.

[0447] It should be understood that the above examples are merely illustrative for the purpose of understanding the solution, and other solutions are not excluded. That is, the first condition in this implementation can be any one of the above, or a combination of multiple conditions, without limitation.

[0448] In this application, the effective time of the second signaling can be the moment the second signaling is received plus a fifth duration, or the moment the feedback signaling corresponding to the second signaling is sent plus a sixth duration. Optionally, the specific interpretation of the fifth duration can refer to the relevant description of the first duration above, and for the sake of brevity, it will not be repeated here. Optionally, the specific interpretation of the sixth duration can refer to the relevant description of the second duration above, and for the sake of brevity, it will not be repeated here, and can be 3 milliseconds.

[0449] In this application, the terminal device measures the semi-persistent reference signal resources of the candidate cell after receiving the first signaling. This can be understood as follows: the terminal device does not perform measurements before receiving the first signaling, regardless of whether it has received the second signaling; measurements are only performed after receiving the first signaling. Alternatively, the effective time of the second signaling is the time when the first reference time has elapsed for the first duration.

[0450] For example, the timing of the semi-persistent reference signal resource measurement by the terminal device after cell handover is not limited in this application. It can be the first (or most recent) semi-persistent reference signal resource timing after the first reference time has elapsed for a first duration; or, it can be any one or more semi-persistent reference signal resource timings after the first reference time has elapsed for a first duration; or, it can be the first X (X is an integer greater than or equal to 1) semi-persistent reference signal resource timings after the first reference time has elapsed for a first duration and before resource reporting; or, it can be the most recent semi-persistent reference signal resource timing after the first reference time has elapsed for a first duration and before resource reporting; or, it can be all semi-persistent reference signal resource timings after the first reference time has elapsed for a first duration and before CSI reference resources; or, it can be the most recent semi-persistent reference signal resource timing after the first reference time has elapsed for a first duration and before CSI reference resources, etc., without limitation.

[0451] In one example, the terminal device begins measuring the semi-persistent reference signal resources at a first moment, which is the moment when the first reference moment has elapsed for a first duration. The first reference moment includes any of the following: the moment the terminal device receives the DCI (Distributed Control Information Center), which is used to schedule the first signaling; the moment the terminal device receives the first signaling; the moment the terminal device sends feedback signaling, which is signaling that responds to the first signaling; the moment when the terminal device sends the feedback signaling after a second duration; the moment when the terminal device sends the feedback signaling after both the second and third durations, where the third duration is the duration of the cell handover interruption; the moment when the first cell handover is completed; or, the moment when the second signaling takes effect after the first signaling. For a detailed explanation, please refer to the relevant description in Case 1 above; for brevity, it will not be elaborated here.

[0452] For a detailed explanation of the first, second, and third durations, please refer to the relevant descriptions above; they will not be repeated here.

[0453] It should be noted that, under the first condition, when the terminal device receives the configuration of the semi-persistent reference signal resource, the semi-persistent reference signal resource can be considered as inactive and does not require measurement. In other words, the activation time of the semi-persistent reference signal resource starts from the first reference time, or starts after the first reference time has elapsed for a first duration, and ends when the configuration of the semi-persistent reference signal resource is released, or after the terminal device reports the channel measurement results, or when the terminal device completes cell handover.

[0454] In the second possible implementation, the terminal measures the reference signal resources before receiving the first signaling.

[0455] The first condition also includes at least one of the following:

[0456] (1) The terminal device supports measuring the reference signal resources of the candidate cell before receiving the first signaling. In other words, the terminal device only supports mode two, or the terminal device only supports obtaining the channel state information of the candidate cell before receiving the first signaling.

[0457] (2) The network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell before receiving the first signaling, or in other words, the terminal device is instructed or configured to measure the reference signal resources of the candidate cell before receiving the first signaling;

[0458] For example, a network device can configure or instruct a terminal device to measure the reference signal resources of a candidate cell before receiving the first signaling by sending second configuration information (see step S605).

[0459] (3) The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling. In other words, the terminal device supports mode one and mode two, or the terminal device supports obtaining the channel state information of the candidate cell before and after receiving the first signaling.

[0460] (4) The network equipment is not configured or instructed to measure the reference signal resources of the candidate cell after receiving the first signaling, or in other words, the terminal equipment is not configured to measure the reference signal resources of the candidate cell after receiving the first signaling.

[0461] (5) The terminal device receives the second signaling, which is used to activate the reference signal resources;

[0462] (6) The terminal device receives the second signaling before receiving the first signaling;

[0463] (7) The terminal device receives the second signaling, and the second signaling takes effect before the first signaling is received;

[0464] (8) When the terminal device receives the second signaling and the second signaling contains third information, the third information is used to instruct the terminal device to start measuring the reference signal resources when the second signaling takes effect.

[0465] (9) The terminal device supports the acquisition and / or reporting of channel measurement results (e.g., channel state information CSI) of candidate cells.

[0466] Example 1: If a terminal device supports measuring the reference signal resources of a candidate cell before receiving the first signaling, and the terminal device receives the second signaling before receiving the first signaling, and the second signaling takes effect before receiving the first signaling, then the terminal device performs the measurement before cell handover.

[0467] Example 2: If the terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the terminal device receives the second signaling before receiving the first signaling, and the second signaling takes effect before receiving the first signaling, then the terminal device performs the measurement before cell handover.

[0468] Example 3: The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the terminal device receives the second signaling before receiving the first signaling, and the second signaling takes effect before receiving the first signaling, and the second signaling contains third information, which is used to instruct the terminal device to start measuring the reference signal resources of the candidate cell when the second signaling takes effect, then the terminal device performs the measurement before cell handover.

[0469] It should be understood that the above examples are merely illustrative for the purpose of understanding the solution, and other solutions are not excluded. That is, the first condition in this implementation can be any one of the above, or a combination of multiple conditions, without limitation.

[0470] In this application, the terminal device measures the semi-persistent reference signal resources of the candidate cell before receiving the first signaling. This can be understood as the terminal device starting to perform the measurement after receiving and activating the semi-persistent reference signal resources.

[0471] For example, the timing of when the terminal device measures the semi-persistent reference signal resources before cell handover is not limited in this application.

[0472] Optionally, the terminal device may stop measuring the semi-persistent reference signal resources of the candidate cell after a first duration has elapsed from the first reference time.

[0473] Optionally, the terminal device may stop measuring the semi-persistent reference signal resources of non-target cells (other cells in the candidate cells besides the first cell) after a first duration has elapsed from the first reference time.

[0474] It should be noted that, under the condition of the first condition, when the terminal device receives the configuration of the semi-persistent reference signal resource, the activation time of the semi-persistent reference signal resource starts from the time the semi-persistent reference signal resource activation signaling takes effect, and ends at the first reference time or after the first reference time has elapsed for a first duration, or when the configuration of the semi-persistent reference signal resource is released, or when the cell handover is completed, or after the terminal device reports the channel measurement results.

[0475] Case 3: The reference signal resource is a non-periodic reference signal resource.

[0476] In the first possible implementation, the terminal measures the reference signal resources after receiving the first signaling.

[0477] The first condition also includes at least one of the following:

[0478] (1) The terminal device only supports measuring the reference signal resources of the candidate cell after receiving the first signaling. In other words, the terminal device only supports mode one, or the terminal device only supports obtaining the channel state information of the candidate cell after receiving the first signaling.

[0479] (2) The network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell after receiving the first signaling, or in other words, the terminal device is instructed or configured to measure the reference signal resources after receiving the first signaling;

[0480] For example, a network device can configure or instruct a terminal device to measure the reference signal resources of a candidate cell after receiving the first signaling by sending second configuration information (see step S605).

[0481] (3) The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling. In other words, the terminal device supports mode one and mode two, or the terminal device supports obtaining the channel state information of the candidate cell before and after receiving the first signaling.

[0482] (4) The terminal device does not support measuring reference signal resources before receiving the first signaling. In other words, the terminal device does not support mode two, or the terminal device does not support obtaining the channel state information of the candidate cell before receiving the first signaling.

[0483] (5) The terminal device receives a third signaling (e.g., DCI), which is used to trigger the measurement of reference signal resources;

[0484] (6) The terminal device receives the third signaling after receiving the first signaling;

[0485] (7) The terminal device receives the third signaling before receiving the first signaling;

[0486] (8) The first signaling contains first information, which is used to trigger the measurement of reference signal resources;

[0487] (9) The terminal device receives the third signaling, and the third signaling takes effect after the first signaling is received;

[0488] (10) The terminal device receives a third signaling message, and the third signaling message contains fourth information, which is used to instruct the terminal device to measure the reference signal resources after receiving the first signaling message.

[0489] (11) The terminal device supports the acquisition and / or reporting of channel measurement results (e.g., channel state information CSI) of candidate cells.

[0490] Example 1: The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the terminal device receives the third signaling, and the third signaling contains fourth information, which is used to instruct the terminal device to measure the reference signal resources of the candidate cell after receiving the first signaling. The terminal device measures the reference signal resources after receiving the first signaling.

[0491] Example 2: The terminal device only supports measuring the reference signal resources of the candidate cell after receiving the first signaling, and the terminal device receives the third signaling before receiving the first signaling, and the terminal device measures the reference signal resources of the candidate cell after receiving the first signaling.

[0492] Example 3: The terminal device only supports measuring the reference signal resources of the candidate cell after receiving the first signaling, or the terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the terminal device receives the first signaling, the first signaling contains first information, the first information is used to trigger the measurement of the reference signal resources, and the terminal device measures the reference signal resources of the candidate cell after receiving the first signaling.

[0493] Example 4: The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling. The terminal device receives the third signaling, and the effective time of the third signaling is after receiving the first signaling. The terminal device measures the reference signal resources of the candidate cell after receiving the first signaling.

[0494] Example 5: The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell after receiving the first signaling.

[0495] Example 6: The terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells. The terminal device receives a third signaling message, and the third signaling message takes effect after the first signaling message is received. The terminal device measures the reference signal resources of the candidate cell after receiving the first signaling message.

[0496] Example 7: The terminal device supports measuring the reference signal resources of the candidate cell after receiving the first signaling. The terminal device receives the third signaling, and the third signaling takes effect after receiving the first signaling. The terminal device measures the reference signal resources of the candidate cell after receiving the first signaling.

[0497] It should be understood that the above examples are merely illustrative for the purpose of understanding the solution, and other solutions are not excluded. That is, the first condition in this implementation can be any one of the above, or a combination of multiple conditions, without limitation.

[0498] In the second possible implementation, the terminal measures the reference signal resources before receiving the first signaling.

[0499] The first condition also includes at least one of the following:

[0500] (1) The terminal device supports measuring the reference signal resources of the candidate cell before receiving the first signaling. In other words, the terminal device only supports mode two, or the terminal device only supports obtaining the channel state information of the candidate cell before receiving the first signaling.

[0501] (2) The network device instructs or configures the terminal device to measure the reference signal resources of the candidate cell before receiving the first signaling, or in other words, the terminal device is instructed or configured to measure the reference signal resources of the candidate cell before receiving the first signaling;

[0502] For example, a network device can configure or instruct a terminal device to measure the reference signal resources of a candidate cell before receiving the first signaling by sending second configuration information (see step S605).

[0503] (3) The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling. In other words, the terminal device supports mode one and mode two, or the terminal device supports obtaining the channel state information of the candidate cell before and after receiving the first signaling.

[0504] (4) The network equipment is not configured or instructed to measure the reference signal resources of the candidate cell after receiving the first signaling, or in other words, the terminal equipment is not configured to measure the reference signal resources of the candidate cell after receiving the first signaling.

[0505] (5) The terminal device receives the third signaling, which is used to trigger the measurement of the reference signal resources;

[0506] (6) The terminal device receives the third signaling before receiving the first signaling;

[0507] (7) The terminal device receives the third signaling, and the effective time of the third signaling is before the first signaling is received;

[0508] (8) When the terminal device receives the third signaling, and the third signaling contains the fifth information, the fifth information is used to instruct the terminal device to start measuring the reference signal resources when the third signaling takes effect.

[0509] (9) The terminal device supports the acquisition and / or reporting of channel measurement results (e.g., channel state information CSI) of candidate cells.

[0510] Example 1: If a terminal device supports measuring the reference signal resources of a candidate cell before receiving the first signaling, and the terminal device receives the third signaling before receiving the first signaling, and the third signaling takes effect before receiving the first signaling, then the terminal device performs the measurement before cell handover.

[0511] Example 2: If the terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the terminal device receives the third signaling before receiving the first signaling, and the third signaling takes effect before receiving the first signaling, then the terminal device performs the measurement before cell handover.

[0512] Example 3: The terminal device supports measuring the reference signal resources of the candidate cell before and after receiving the first signaling, and the terminal device receives the third signaling before receiving the first signaling, and the third signaling takes effect before receiving the first signaling, and the third signaling contains fifth information, which is used to instruct the terminal device to start measuring the reference signal resources of the candidate cell when the third signaling takes effect, then the terminal device performs the measurement before cell handover.

[0513] It should be understood that the above examples are merely illustrative for the purpose of understanding the solution, and other solutions are not excluded. That is, the first condition in this implementation can be any one of the above, or a combination of multiple conditions, without limitation.

[0514] S630, the terminal device sends the channel measurement results to the first cell.

[0515] The channel measurement result is obtained by measuring the reference signal resources based on the measurement timing. In other words, after determining the measurement timing, the terminal device determines whether to measure the reference signal resources before or after receiving the first signaling, thereby obtaining the channel measurement result.

[0516] In one implementation, the terminal device sends channel measurement results to the first cell, including: the terminal device sending the channel measurement results on the reporting resources of the first cell.

[0517] The resources reported by the first community include at least one of the following:

[0518] (1) During random access, the PUSCH resources of the RAR uplink grant scheduling UL grant are used;

[0519] (2) The PUSCH contained in message A during the two-step random access process;

[0520] (3) The first uplink channel after the random access procedure is completed;

[0521] (4) The first uplink channel after the first cell handover is completed;

[0522] (5) The configured PUSCH, the pre-configured PUSCH (e.g., the configured grant enhanced physical uplink shared channel (CG-PUSCH)) is used to carry the reporting of channel measurement results after the handover of the first cell is completed;

[0523] (6) After the first cell handover is completed, the first PUSCH is scheduled by the uplink control information (UCI).

[0524] For example, if the cell handover is based on 4-step CFRA (e.g., the first signaling indicates CFRA-related information, and the terminal device can send CFRA to perform cell handover based on this, or it is a CFRA resource configured or indicated by the network), then the terminal device sends channel measurement results on the PUSCH resource granted by the RAR UL during random access.

[0525] For example, if the cell handover is a 2-step CFRA-based cell handover (e.g., the terminal device sends MsgA to the first cell (beared on PRACH and PUSCH)), then the terminal device sends the channel measurement results on the PUSCH contained in message A during the two-step random access process.

[0526] For example, if the cell handover is based on CBRA, then the terminal device transmits the channel measurement results on the first uplink channel after the random access procedure is completed.

[0527] For example, if the cell handover is a RACH-less cell handover, then the terminal device transmits the channel measurement results on the first uplink channel after the first cell handover is completed.

[0528] For example, the terminal device can carry the measurement result at the Y-th transmission time of the CG-PUSCH resource after the fourth duration following the second reference time, where Y is an integer greater than or equal to 1. The specific interpretation of the second reference time can be found in the relevant description of the first reference time above, and the specific interpretation of the fourth duration can be found in the relevant description of the first duration above. For the sake of brevity, these details will not be repeated here.

[0529] Optionally, the second reference time can also be the last symbol occupied by the last reference signal resource in the measured reference signal resources.

[0530] Optionally, the fourth duration can also be Z symbols, the value of which depends on the capabilities of the terminal device and is not limited thereto. For example, Z can be defined as follows: Xμ is determined by the beam report timing capability parameter reported by the terminal device, and μ is the subcarrier spacing configuration. The relationship between μ and Z is shown in Table 1 below.

[0531] Table 1

[0532] It should be understood that the above examples are merely illustrative examples to facilitate understanding of the solutions, and other solutions are not excluded.

[0533] Optionally, one or more reporting configurations for the serving cell include a first reporting configuration. The first reporting configuration is associated with the reference signal resources of the first cell. The terminal device sends channel measurement results to the network device according to the first reporting configuration.

[0534] In this embodiment, the terminal device measures the reference signal of the first cell during or after cell handover. When the terminal device is located in the serving cell, it measures the reference signal of the first cell. Then, the terminal device sends the channel measurement results to the network device through the first report configuration of the serving cell.

[0535] In the embodiments described above, after receiving the first signaling, the terminal device begins measuring the reference signal of the first cell at the first instant. It is understood that the terminal device measures the reference signal of the first cell during cell handover and sends the channel measurement results. This allows the network device to determine transmission parameters based on the channel measurement results after the terminal device hands over to the first cell, and to schedule the terminal device using these transmission parameters. This improves the reliability and efficiency of data transmission.

[0536] As mentioned above, the network device involved in the technical solution of this application can be O-RAN. Under the O-RAN architecture, the RIC can directly control both the CU and the DU, requiring the "network device (e.g., RAN or BS)" in the communication method shown in Figure 6 to be expanded to "CU" and "DU". Optionally, in various embodiments of this application, if the network device is a CU-DU separated architecture, after the CU receives information from the core network element, it can forward the information to the DU; or, after the DU receives information from the terminal device, it can forward the information to the CU. The remaining steps can be referred to the relevant description in Figure 6 above, and will not be repeated here.

[0537] For example, in the above method 600, the CU of the network device can first send the information to be sent to the terminal device (e.g., the first signaling or the first configuration information) to the DU of the network device, and then the DU sends it to the terminal device. For the specific interpretation of the first signaling or the first configuration information, as well as the specific implementation of each step, please refer to the relevant description of the above method 600. For the sake of brevity, it will not be explained here.

[0538] The communication method embodiments of this application have been described in detail above with reference to Figures 1 to 6. The communication device embodiments of this application will now be described in detail with reference to Figures 7 to 9. It should be understood that the descriptions of the device embodiments correspond to the descriptions of the method embodiments; therefore, any parts not described in detail can be referred to the preceding method embodiments.

[0539] Figure 7 is a possible exemplary block diagram of the communication device involved in the embodiments of this application. As shown in Figure 7, the communication device 1000 may include modules or units for implementing the method embodiments described above. In one possible design, the communication device 1000 includes a communication unit 1003 and a processing unit 1002. Optionally, the communication device 1000 may also include a storage unit 1001 for storing device program code and / or data. The communication unit 1003 may also be referred to as an input / output circuit, input / output interface, communication interface, transceiver unit, communication module, transceiver module, transceiver circuit, or interface unit, etc. The transceiver unit includes a receiving unit and / or a sending unit. The sending unit may also be referred to as an output unit, and the receiving unit may also be referred to as an input unit. The processing unit 1002 may read instructions and / or data from the storage unit 1001 to enable the device to implement the aforementioned method embodiments.

[0540] The communication device 1000 can be a terminal device as described in the above embodiments, such as a terminal device or a communication module (e.g., a circuit, a chip, or a chip system) in a terminal device, or a logic node or logic module that can implement all or part of the functions of a terminal device.

[0541] For example, in one embodiment, the communication unit 1003 is used to receive a first signaling, which instructs the terminal device to switch from the serving cell to the first cell; the processing unit 1002 is used to determine the measurement timing of the reference signal resources according to a first condition, which includes the terminal device supporting the acquisition and / or reporting of channel measurement results of candidate cells, and the measurement timing is that the terminal device measures the reference signal resources before or after receiving the first signaling, and the candidate cells include the first cell; the communication unit 1003 is also used to send the channel measurement results to the first cell, which are obtained by measuring the reference signal resources based on the measurement timing.

[0542] For example, in one embodiment, the communication unit 1003 is configured to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit 1002 is configured to determine the measurement timing of the reference signal resources if at least a second condition is met, wherein the measurement timing is when the terminal device measures the reference signal resources after receiving the first signaling, and the candidate cells include the first cell; the communication unit 1003 is further configured to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0543] The second condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device only supports measuring reference signal resources after receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources after receiving the first signaling; the terminal device supports measuring reference signal resources before and after receiving the first signaling; or, the terminal device does not support measuring reference signal resources before receiving the first signaling.

[0544] For example, in one embodiment, the communication unit 1003 is used to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit 1002 is used to determine the measurement timing of the reference signal resources when at least a third condition is met, wherein the measurement timing is that the terminal device measures the reference signal resources before receiving the first signaling, and the candidate cells include the first cell; the communication unit 1003 is also used to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0545] The third condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device supports measuring reference signal resources before receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources before receiving the first signaling; the terminal device supports measuring reference signal resources before and after receiving the first signaling; or, the network device does not configure or instruct the terminal device to measure reference signal resources after receiving the first signaling.

[0546] For example, in one embodiment, the communication unit 1003 is used to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit 1002 is used to determine the measurement timing of the reference signal resources when at least a fourth condition is met, wherein the measurement timing is when the terminal device measures the reference signal resources after receiving the first signaling, and the candidate cells include the first cell; the communication unit 1003 is also used to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0547] The fourth condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results for candidate cells; the terminal device only supports measuring reference signal resources after receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources after receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the terminal device does not support measuring reference signal resources before receiving the first signaling; the terminal device receives a second signaling used to activate reference signal resources; the terminal device receives the second signaling after receiving the first signaling; the terminal device receives the second signaling before receiving the first signaling; the first signaling contains first information used to trigger the measurement of reference signal resources; the terminal device receives the second signaling, and the second signaling takes effect after receiving the first signaling; or, the terminal device receives the second signaling, and the second signaling contains second information used to instruct the terminal device to measure reference signal resources after receiving the first signaling.

[0548] For example, in one embodiment, the communication unit 1003 is used to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit is used to determine the measurement timing of the reference signal resources when at least a fifth condition is met, wherein the measurement timing is that the terminal device measures the reference signal resources before receiving the first signaling, and the candidate cells include the first cell; the communication unit is also used to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0549] The fifth condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device supports measuring reference signal resources before receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources before receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the network device does not configure or instruct the terminal device to measure reference signal resources after receiving the first signaling; the terminal device receives a second signaling used to activate reference signal resources; the terminal device receives the second signaling before receiving the first signaling; the terminal device receives the second signaling, and the effective time of the second signaling is before receiving the first signaling; or, the terminal device receives the second signaling, and the second signaling contains third information used to instruct the terminal device to start measuring reference signal resources when the second signaling takes effect.

[0550] For example, in one embodiment, the communication unit 1003 is used to receive a first signaling, which instructs the terminal device to switch from the serving cell to the first cell; the processing unit 1002 is used to determine the measurement timing of the reference signal resources when at least a sixth condition is met, wherein the measurement timing is when the terminal device measures the reference signal resources after receiving the first signaling, and the candidate cells include the first cell; the communication unit 1003 is also used to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0551] The sixth condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results for candidate cells; the terminal device only supports measuring reference signal resources after receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources after receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the terminal device does not support measuring reference signal resources before receiving the first signaling; the terminal device receives a third signaling, which is used to trigger the measurement of reference signal resources; the terminal device receives the third signaling after receiving the first signaling; the terminal device receives the third signaling before receiving the first signaling; the first signaling contains first information, which is used to trigger the measurement of reference signal resources; the terminal device receives the third signaling, and the effective time of the third signaling is after receiving the first signaling; or, the terminal device receives the third signaling, and the third signaling contains fourth information, which is used to instruct the terminal device to measure reference signal resources after receiving the first signaling.

[0552] For example, in one embodiment, the communication unit 1003 is used to receive a first signaling, which instructs the terminal device to switch from the serving cell to a first cell; the processing unit 1002 is used to determine the measurement timing of the reference signal resources when at least a seventh condition is met, wherein the measurement timing is that the terminal device measures the reference signal resources before receiving the first signaling, and the candidate cells include the first cell; the communication unit 1003 is also used to send channel measurement results to the first cell, wherein the channel measurement results are obtained based on the measurement timing of the reference signal resources.

[0553] The seventh condition includes at least one of the following: the terminal device supports the acquisition and / or reporting of channel measurement results of candidate cells; the terminal device supports measuring reference signal resources before receiving the first signaling; the network device instructs or configures the terminal device to measure reference signal resources before receiving the first signaling; the terminal device supports measuring reference signal resources both before and after receiving the first signaling; the network device does not configure or instruct the terminal device to measure reference signal resources after receiving the first signaling; the terminal device receives a third signaling, which is used to trigger the measurement of reference signal resources; the terminal device receives the third signaling before receiving the first signaling; the terminal device receives the third signaling, and the effective time of the third signaling is before receiving the first signaling; or, the terminal device receives the third signaling, and the third signaling contains fifth information, which instructs the terminal device to start measuring reference signal resources when the third signaling takes effect.

[0554] In one possible design, when the communication device 1000 is a terminal device or a communication module within a terminal device, the function of the processing unit 1002 can be implemented by one or more processors. Specifically, the processor may include a modem chip, or a system-on-a-chip (SoC) chip or a SIP chip containing a modem core. The function of the communication unit 1003 can be implemented by a transceiver circuit.

[0555] In one possible design, when the communication device 1000 is a circuit or chip responsible for communication functions in a terminal device, such as a modem chip or a system-on-a-chip (SoC) or SIP chip containing a modem core, the function of the processing unit 1002 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the communication unit 1003 can be implemented by an interface circuit or data transceiver circuit on the aforementioned chip.

[0556] The communication device 1000 can be the network device side in the above embodiments, such as a network device or a communication module (e.g., circuit, chip or chip system) in a network device, or a logic node or logic module that can realize all or part of the functions of the network device.

[0557] For example, in one embodiment, the communication unit 1003 is used to send a first signaling, which instructs the terminal device to switch from the serving cell to a first cell.

[0558] In one possible design, the communication unit 1003 is used to send first configuration information, which is used to indicate one or more reporting configurations of the serving cell.

[0559] In one possible design, the communication unit 1003 is used to receive second configuration information, which instructs the terminal device to measure the reference signal resources and / or report the channel measurement results before or after receiving the first signaling.

[0560] In one possible design, when the communication device 1000 is a network device or a communication module within a network device, the function of the processing unit 1002 can be implemented by one or more processors. Specifically, the processor may include a chip. The function of the communication unit 1003 can be implemented by a transceiver circuit.

[0561] In one possible design, when the communication device 1000 is a circuit or chip in a network device responsible for communication functions, the function of the processing unit 1002 can be implemented by a circuit system in the chip that includes one or more processors or processor cores. The function of the communication unit 1003 can be implemented by an interface circuit or data transceiver circuit on the chip.

[0562] It is understood that the aforementioned communication device 1000 can be embodied in the form of functional units. The division of units within the device is merely a logical functional division; one function can correspond to one functional unit, or two or more functions can be integrated into one functional unit. In actual implementation, all or some units can be integrated onto a single physical entity, or distributed across different physical entities. Furthermore, the aforementioned functional units can be implemented in hardware, software, or a combination of both.

[0563] In one example, the functional unit in any of the above devices may be one or more integrated circuits configured to implement the above methods, such as: one or more application-specific integrated circuit (ASIC) designs, or one or more central processing units (CPUs), one or more microprocessor units (MPUs), one or more microcontroller units (MCUs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0564] In one example, storage unit 1001 may include random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory and / or registers, etc.

[0565] Furthermore, the aforementioned communication unit 1003 can also be a transceiver circuit (e.g., it may include a receiving circuit and a transmitting circuit), and the processing unit 1002 can be a processing circuit. In embodiments of this application, the device in FIG7 can be a terminal device or network device as described in the foregoing embodiments, or it can be a chip or a chip system, such as a SoC. The communication unit 1003 can be an input / output circuit, a communication interface, a transceiver unit, a communication module, a transceiver module, or an interface unit. The processing unit 1002 is a processor, microprocessor, or integrated circuit integrated on the chip. No limitation is made here.

[0566] It should be noted that the device in Figure 7 can be the communication device (such as a terminal device or a network device) in the foregoing embodiments, or it can be a chip or a chip system, such as a system-on-a-chip (SoC). The transceiver unit can be an input / output circuit or a communication interface; the processing unit can be a processor, microprocessor, or integrated circuit integrated on the chip, etc., and there are no limitations on this.

[0567] Figure 8 is a schematic block diagram of a communication device 2000 provided in an embodiment of this application. As shown in Figure 8, the communication device 2000 includes a processor 2010 and a transceiver 2020. The transceiver 2020 is used for receiving and / or transmitting signals. The processor 2010 and the transceiver 2020 communicate with each other through an internal connection path. The processor 2010 is used to execute instructions to control the transceiver 2020 to transmit and / or receive signals.

[0568] Optionally, the communication device 2000 may further include a memory 2030 for storing computer programs or instructions and / or data. The memory 2030 communicates with the processor 2010 and transceiver 2020 via internal connection paths. The memory 2030 stores instructions, and the processor 2010 can execute the instructions stored in the memory 2030. The processor 2010 is coupled to the memory 2030 and is used to execute the computer programs or instructions stored in the memory 2030, or to read the data stored in the memory 2030, to perform the methods in the above-described method embodiments.

[0569] Optionally, the transceiver 2020 may include a transmitter and / or a receiver to respectively implement the sending and receiving operations in the embodiments; if the transceiver 2020 is an input / output interface, then it sends the corresponding output and receives the corresponding input.

[0570] Optionally, there may be one or more processors 2010. Optionally, there may be one or more memories 2030. Optionally, the memories 2030 may be integrated with the processors 2010 or may be separately configured.

[0571] As an example, processor 2010 may have the functions of processing unit 1002 shown in FIG. 7, memory 2030 may have the functions of storage unit, and transceiver 2020 may have the functions of communication unit 1003 shown in FIG. 7.

[0572] As one approach, the device 2000 is used to implement the operations performed by the communication device (such as a terminal device or a network device) in the various method embodiments described above. For example, the processor 2010 is used to execute computer programs or instructions stored in the memory 2030 to implement the relevant operations of the communication device in the various method embodiments described above.

[0573] In one implementation, the communication device 2000 is used to implement the various processes and steps corresponding to the terminal device in the above method embodiments.

[0574] In another implementation, the communication device 2000 is used to implement the various processes and steps corresponding to the network device in the above method embodiments.

[0575] Alternatively, if the transceiver 2020 is replaced with an input / output circuit or input / output interface, the communication device 2000 can be considered as a chip or chip system.

[0576] Optionally, the memory 2030 may include read-only memory and random access memory, and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information. The processor 2010 may be used to execute instructions stored in the memory, and when the processor 2010 executes instructions stored in the memory, the processor 2010 is used to perform the various steps and / or processes of the method embodiments corresponding to the terminal device or network device described above.

[0577] In implementation, each step of the above method can be completed by integrated logic circuits in the processor hardware or by instructions in software. The steps of the method claimed in the embodiments of this application can be directly implemented by a hardware processor, or by a combination of hardware and software modules in the processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, detailed descriptions are omitted here.

[0578] It should be noted that the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed by the integrated logic circuits in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The processor in the embodiments of this application can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method applied in conjunction with the embodiments of this application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.

[0579] It should be understood that the processor mentioned in the embodiments of this application can be a CPU, or other general-purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0580] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0581] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) can be integrated into the processor.

[0582] Figure 9 is a schematic block diagram of a chip system 3000 provided in an embodiment of this application. As shown in Figure 9, the chip system 3000 (or may also be called a processing system) includes logic circuitry 3010 and an input / output interface 3020.

[0583] The logic circuit 3010 can be a processing circuit in the chip system 3000. The logic circuit 3010 can be coupled to a memory unit, calling instructions from the memory unit, enabling the chip system 3000 to implement the methods and functions of the embodiments of this application. The input / output interface 3020 can be an input / output circuit in the chip system 3000, outputting processed information from the chip system 3000, or inputting data or signaling information to be processed into the chip system 3000 for processing.

[0584] As one approach, the chip system 3000 is used to implement the operations performed by the network device in the various method embodiments described above.

[0585] For example, logic circuit 3010 is used to implement the processing-related operations performed by the network device in the above method embodiments, such as the processing-related operations performed by the network device in the embodiment shown in FIG6; input / output interface 3020 is used to implement the sending and / or receiving-related operations performed by the network device in the above method embodiments, such as the sending and / or receiving-related operations performed by the network device in the embodiment shown in FIG6.

[0586] As an alternative, the chip system 3000 is used to implement the operations performed by the terminal device in the various method embodiments described above.

[0587] For example, logic circuit 3010 is used to implement the processing-related operations performed by the terminal device in the above method embodiments, as shown in the embodiment of FIG6; input / output interface 3020 is used to implement the sending and / or receiving-related operations performed by the terminal device in the above method embodiments, as shown in the embodiment of FIG6.

[0588] This application also provides a computer-readable storage medium storing computer instructions for implementing the methods executed by communication devices (e.g., terminal devices and / or network devices) in the above-described method embodiments.

[0589] This application also provides a computer program product comprising instructions which, when executed by a computer, implement the methods described above as performed by a communication device (e.g., a terminal device and / or a network device).

[0590] This application also provides a communication system, which includes the terminal device and / or network device described in the above embodiments.

[0591] The explanations and beneficial effects of the relevant contents in any of the devices provided above can be found in the corresponding method embodiments provided above, and will not be repeated here.

[0592] In the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0593] This application will present various aspects, embodiments, or features relating to systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that individual systems may include additional devices, components, modules, etc., and / or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these approaches are also possible.

[0594] In this application, examples may reference each other without logical contradiction. For example, methods and / or terms between method embodiments may reference each other, functions and / or terms between device embodiments may reference each other, and functions and / or terms between device examples and method examples may reference each other.

[0595] It should be understood that the above embodiments are mainly illustrated using devices in existing network architectures as examples, and the specific form of the devices is not limited in the embodiments of this application. For example, any device that can achieve the same function in the future is applicable to the embodiments of this application.

[0596] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0597] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

[0598] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0599] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this implementation scheme according to actual needs.

[0600] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0601] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to existing solutions, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, external hard drives, ROM, RAM, magnetic disks, or optical disks.

[0602] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for measuring a reference signal resource, characterized in that, include: Receive a first signaling message, the first signaling message being used to instruct the terminal device to switch from the serving cell to the first cell; The channel measurement results are sent to the first cell, and the channel measurement results are obtained by measuring the reference signal resources of the first cell.

2. The method of claim 1, wherein, Send channel measurement results to the first cell, including: If the cell handover of the terminal device is based on a four-step non-contention random access cell handover, then during the four-step random access process, the channel measurement results are sent to the first cell on the Physical Uplink Shared Channel (PUSCH) resource of the RAR uplink grant scheduling in the random access response.

3. The method of claim 1, wherein, Send channel measurement results to the first cell, including: If the cell handover of the terminal device is based on a two-step non-contention random access cell handover, then during the two-step random access process, the channel measurement result is sent to the first cell on the PUSCH resource contained in message Msg A.

4. The method of claim 1, wherein, Send channel measurement results to the first cell, including: If the cell handover of the terminal device is a contention-based random access cell handover, then on the first uplink channel after the random access process is completed, the channel measurement results are sent to the first cell.

5. The method of claim 1, wherein, Send channel measurement results to the first cell, including: If the cell handover of the terminal device is a cell handover without random access channel, then on the first uplink channel after the handover of the first cell is completed, the channel measurement result is sent to the first cell.

6. The method according to any one of claims 1 to 5, characterized in that, The channel measurement results are obtained by the terminal device measuring the reference signal resources of the first cell before or after receiving the first signaling.

7. The method according to any one of claims 1 to 6, characterized in that, The method further includes: If the first condition is met, the terminal device measures the reference signal resources of the first cell before receiving the first signaling; The first condition includes at least one of the following: The terminal device supports measuring the reference signal resources before receiving the first signaling; The network device instructs the terminal device to measure the reference signal resource before receiving the first signaling; The terminal device supports measuring the reference signal resources both before and after receiving the first signaling; The network device is not configured to measure the reference signal resource after receiving the first signaling; The terminal device supports measuring the reference signal resources before receiving the first signaling; The network device instructs the terminal device to measure the reference signal resource before receiving the first signaling; The terminal device supports measuring the reference signal resource both before and after receiving the first signaling; or... The network device is not configured for the terminal device to measure the reference signal resource after receiving the first signaling.

8. The method according to any one of claims 1 to 6, characterized in that, The method further includes: If the first condition is met, the terminal device measures the reference signal resources of the first cell after receiving the first signaling; The first condition includes at least one of the following: The terminal device only supports measuring the reference signal resource after receiving the first signaling; The network device instructs the terminal device to measure the reference signal resource after receiving the first signaling; The terminal device supports measuring the reference signal resource both before and after receiving the first signaling; or... The terminal device does not support measuring the reference signal resource before receiving the first signaling; The terminal device only supports measuring the reference signal resource after receiving the first signaling; The network device instructs the terminal device to measure the reference signal resource after receiving the first signaling; The terminal device supports measuring the reference signal resource both before and after receiving the first signaling; or... The terminal device does not support measuring the reference signal resource before receiving the first signaling. 9.A method for measuring a reference signal resource, characterized in that, include: Receive a first signaling message, the first signaling message being used to instruct the terminal device to switch from the serving cell to the first cell; The measurement timing of the reference signal resources is determined according to a first condition, the first condition including the terminal device supporting the acquisition and / or reporting of channel measurement results of candidate cells, the measurement timing being the terminal device measuring the reference signal resources before or after receiving the first signaling, the candidate cells including the first cell; The channel measurement results are sent to the first cell, and the channel measurement results are obtained by measuring the reference signal resources based on the measurement timing.

10. The method of claim 9, wherein, The method further includes: The reference signal resources are measured before receiving the first signaling to obtain the channel measurement results; or... After receiving the first signaling, the reference signal resources are measured to obtain the channel measurement results.

11. The method according to claim 9 or 10, characterized in that, The reference signal resource is a periodic reference signal resource. When the first condition further includes at least one of the following, the measurement timing is when the terminal device measures the reference signal resource after receiving the first signaling. The first condition further includes at least one of the following: The terminal device only supports measuring the reference signal resource after receiving the first signaling; The network device instructs the terminal device to measure the reference signal resource after receiving the first signaling; The terminal device supports measuring the reference signal resource both before and after receiving the first signaling; or... The terminal device does not support measuring the reference signal resource before receiving the first signaling.

12. The method according to claim 9 or 10, characterized in that, The reference signal resource is a periodic reference signal resource. When the first condition further includes at least one of the following, the measurement timing is that the terminal device measures the reference signal resource before receiving the first signaling. The first condition further includes at least one of the following: The terminal device supports measuring the reference signal resources before receiving the first signaling; The network device instructs the terminal device to measure the reference signal resource before receiving the first signaling; The terminal device supports measuring the reference signal resource both before and after receiving the first signaling; or... The network device is not configured for the terminal device to measure the reference signal resource after receiving the first signaling.

13. The method of claim 9 or 10, wherein, The reference signal resource is a semi-persistent reference signal resource. When the first condition further includes at least one of the following, the measurement timing is when the terminal device measures the reference signal resource after receiving the first signaling. The first condition includes at least one of the following: The terminal device only supports measuring the reference signal resource after receiving the first signaling; The network device instructs the terminal device to measure the reference signal resource after receiving the first signaling; The terminal device supports measuring the reference signal resources both before and after receiving the first signaling; The terminal device does not support measuring the reference signal resource before receiving the first signaling; The terminal device receives a second signaling message, which is used to activate the reference signal resource; The terminal device receives the second signaling after receiving the first signaling; The terminal device receives the second signaling before receiving the first signaling; The first signaling includes first information, which is used to trigger the measurement of the reference signal resource; The terminal device receives the second signaling, and the second signaling becomes effective after the first signaling is received; or, The terminal device receives the second signaling, and the second signaling contains second information, which is used to instruct the terminal device to measure the reference signal resource after receiving the first signaling.

14. The method of claim 9 or 10, wherein, The reference signal resource is a semi-persistent reference signal resource. When the first condition further includes at least one of the following, the measurement timing is that the terminal device measures the reference signal resource before receiving the first signaling. The first condition further includes at least one of the following: The terminal device supports measuring the reference signal resources before receiving the first signaling; The network device instructs the terminal device to measure the reference signal resource before receiving the first signaling; The terminal device supports measuring the reference signal resources both before and after receiving the first signaling; The network device is not configured to measure the reference signal resource after receiving the first signaling; The terminal device receives a second signaling message, which is used to activate the reference signal resource; The terminal device receives the second signaling before receiving the first signaling; The terminal device receives the second signaling, and the second signaling takes effect before the first signaling is received; or, Upon receiving the second signaling, and the second signaling containing third information, the terminal device is instructed to begin measuring the reference signal resource when the second signaling takes effect.

15. The method of claim 11 or 13, wherein, Measuring the reference signal resource after receiving the first signaling includes: The measurement of the reference signal resource begins at a first moment, where the first moment is the moment when the first reference moment has elapsed for a first duration. The first reference time includes any one of the following: The terminal device receives downlink control information at the time of receiving the downlink control information, which is used to schedule the first signaling; The terminal device receives the first signaling at the time of reception; The timing of the terminal device sending the feedback signaling, wherein the feedback signaling is a signaling that is fed back in response to the first signaling; The time at which the terminal device sends the feedback signaling occurs after the second duration; The terminal device sends the feedback signaling at a time that includes the second and third durations, wherein the third duration is the duration of the cell handover interruption; or, The moment when the handover to the first cell is completed.

16. The method according to any one of claims 9 to 15, characterized in that, The method further includes: Receive first configuration information, which is used to indicate one or more reporting configurations of the serving cell.

17. The method according to claim 16, characterized in that, The one or more reports are configured to associate with the reference signal resources of the first cell; or, Each of the one or more report configurations is associated with a resource configuration, and the resource configuration associated with the one or more report configurations includes the reference signal resources of the first cell.

18. The method according to any one of claims 9 to 17, characterized in that, The method further includes: The terminal device receives second configuration information, which instructs the terminal device to measure the reference signal resources and / or report the channel measurement results before or after receiving the first signaling.

19. The method according to any one of claims 9 to 18, characterized in that, The method further includes: Send capability information of the terminal device, wherein the capability information includes at least one of the following: The terminal device supports measuring the reference signal resources and / or reporting the channel measurement results; The terminal device supports measuring the reference signal resources before receiving the first signaling and / or reporting the channel measurement results before receiving the first signaling; or, The terminal device supports measuring the reference signal resources after receiving the first signaling and / or reporting the channel measurement results after receiving the first signaling.

20. The method of any one of claims 9 to 19, wherein, The reference signal resource is the reference signal resource of the candidate cell, and the channel measurement result is the channel measurement result of the candidate cell.

21. The method according to any one of claims 9 to 20, characterized in that, Sending channel measurement results to the first cell includes: The channel measurement results are transmitted on the reporting resources of the first cell; The resources reported by the first cell include at least one of the following: During random access, the physical uplink shared channel (PUSCH) resources of the random access response (RAR) uplink grant scheduling are used. The PUSCH contained in message A during the two-step random access process; The first uplink channel after the random access procedure is completed; The first uplink channel after the handover of the first cell is completed; A pre-configured PUSCH, which is used to carry the reporting of the channel measurement results after the handover of the first cell is completed; or, The first uplink control information scheduling PUSCH is performed after the handover of the first cell is completed.

22. A communications device, characterized by The communication device includes a module or unit for performing the method as described in any one of claims 1 to 8, or a module or unit for performing the method as described in any one of claims 9 to 21.

23. A communications device, characterized by It includes at least one processor, the at least one processor being configured to execute a computer program or instructions in memory to cause the method of any one of claims 1 to 8 to be performed, or to cause the method of any one of claims 9 to 21 to be performed.

24. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program that, when run on a computer, causes the method as described in any one of claims 1 to 21 to be performed.

25. A computer program product, characterised in that, Includes a computer program or instructions that, when executed by a processor, cause the method as described in any one of claims 1 to 21 to be performed.

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