Measurement and reporting method, and related apparatus

Abstract

The present application provides a measurement and reporting method and a related apparatus. The method provided in the present application comprises: measuring reference signals sent by a network device on K channel measurement resources, so as to obtain K channel measurement results, K being an integer greater than or equal to 2; measuring a reference signal sent by the network device on a first interference measurement resource to obtain a first interference measurement result, an association relationship existing between a time domain resource occupied by the first interference measurement resource and a time domain resource occupied by a first channel measurement resource, and the first channel measurement resource being one channel measurement resource among the plurality of channel measurement resources; and reporting channel state information (CSI) to the network device, the CSI being determined on the basis of M channel measurement results of the K channel measurement results and the first interference measurement result, and M being less than or equal to K. The above facilitates the measurement of interference in cells corresponding to the K channel measurement resources.

Description

Measurement and reporting methods and related devices

[0001] This application claims priority to Chinese patent application filed on November 7, 2024, with application number 202411587706.2 and entitled "Measuring and Reporting Method and Related 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 measurement and reporting method and related apparatus. Background Technology

[0003] Existing communication protocols stipulate that the channel measurement resource (CMR) of multiple non-zero power channel status / state information reference signals (NZP CSI-RS) is associated with only one NZP CSI-RS interference measurement resource (IMR). In hybrid beamforming (HBF) architectures, the channel measurement resources of multiple NZP CSI-RS are transmitted in a time-division multiplexing manner; therefore, it is impossible to use a single NZP CSI-RS resource for interference measurement to measure intra-cell interference. Therefore, how to use this NZP CSI-RS resource for interference measurement to measure the intra-cell interference corresponding to the channel measurement resources of multiple NZP CSI-RS is a problem worth considering. Summary of the Invention

[0004] This application provides a measurement and reporting method and related apparatus for measuring the interference within a cell corresponding to a channel measurement resource associated with a first interference measurement resource. The interference within the cell corresponding to other channel measurement resources among the K channel measurement resources can be determined by referring to the interference within the cell corresponding to the channel measurement resource associated with the first interference measurement resource. This achieves the measurement of interference within the cell corresponding to the K channel measurement resources.

[0005] The first aspect of this application provides a measurement and reporting method, which can be used in a terminal-side communication device, for example, executed by a terminal device. The terminal device can be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, chip system, module, or control unit in the aforementioned device or apparatus; specific details are not limited in this application. It should be noted that, in this application, the term "terminal device" can refer to the terminal device itself, or to the chip, functional module, or integrated circuit within the terminal device that performs the method provided in this application; specific details are not limited in this application. In the first aspect and its possible implementations, the method is described using the example of execution by a terminal device. The method includes: a terminal device measuring K channel measurement resources from a network device to obtain K channel measurement results, where K is an integer greater than or equal to 2; the terminal device measuring a first interference measurement resource from the network device to obtain a first interference measurement result, wherein the time-domain resources occupied by the first interference measurement resource are correlated with the time-domain resources occupied by the first channel measurement resource, and the first channel measurement resource is one of the multiple channel measurement resources; the terminal device reporting channel status / state information (CSI) to the network device, wherein the CSI is determined based on M channel measurement results from the K channel measurement results and the first interference measurement result, where M is less than or equal to K. Optionally, the terminal device measuring the K channel measurement resources from the network device to obtain K channel measurement results can be described as: the terminal device measuring the reference signal transmitted by the network device on the K channel measurement resources to obtain K channel measurement results. The terminal device measuring the first interference measurement resource from the network device to obtain a first interference measurement result can be described as: the terminal device measuring the reference signal transmitted by the network device on the first interference measurement resource to obtain the first interference measurement result.

[0006] In the above technical solution, the terminal device measures the first interference measurement resource from the network device to obtain the first interference measurement result. The time-domain resources occupied by the first interference measurement resource are correlated with the time-domain resources occupied by the first channel measurement resource. This allows the measurement of the interference within the cell corresponding to the channel measurement resource associated with the first interference measurement resource. The interference within the cell corresponding to other channel measurement resources among the K channel measurement resources can be determined by referring to the interference within the cell corresponding to the channel measurement resource associated with the first interference measurement resource. This achieves the measurement of the interference within the cell corresponding to the K channel measurement resources. Optionally, the terminal device measuring the K channel measurement resources from the network device to obtain the K channel measurement results can be described as: the terminal device measuring the reference signal of the network device on the K channel measurement resources to obtain the K channel measurement results. Optionally, the terminal device measuring the first interference measurement resource from the network device to obtain the first interference measurement result can be described as: the terminal device measuring the reference signal of the network device on the first interference measurement resource to obtain the first interference measurement result.

[0007] Based on the first aspect, in one possible implementation, the first interference measurement resource is an NZP CSI-RS resource used for interference measurement. In other words, the first interference measurement resource is an NZP CSI-RS resource used for intra-cell interference measurement.

[0008] Based on the first aspect, in one possible implementation, the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource are correlated, including: the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource partially or completely overlap; or, the time interval between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource is no greater than a first duration; or, the time interval between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource is a second duration. This implementation illustrates some possible implementations of the correlation relationship to achieve the measurement of interference within the cell corresponding to the channel measurement resource correlated by the first interference measurement resource.

[0009] Based on the first aspect, in one possible implementation, the first channel measurement resource is the nth channel measurement resource among K channel measurement resources; wherein the K channel measurement resources are sorted in ascending or descending order according to their Channel State Information Reference Signal Resource Indicator (CSI-RS) serial numbers; or, the K channel measurement resources are sorted in ascending or descending order according to their resource identifiers (IDs), where n is an integer greater than or equal to 1 and less than or equal to K; or, the CRI serial number of the first channel measurement resource is the same as the CRI serial number of the channel measurement resource with the best signal quality in the historical channel measurement resources of the terminal device; or, the resource ID of the first channel measurement resource is the same as the resource ID of the channel measurement resource with the best signal quality in the historical channel measurement resources of the terminal device; or, the first channel measurement resource is the nth channel measurement resource among Mr channel measurement resources. The S-th channel measurement resource and the Mr-th channel measurement resource are channel measurement resources configured by the network device with a higher priority than the channel measurement resources other than the Mr-th channel measurement resources among the K channel measurement resources. The Mr-th channel measurement resources are sorted in ascending or descending order of their CRI numbers; or, the Mr-th channel measurement resources are sorted in ascending or descending order of their resource IDs; Mr is a number greater than or equal to 1 and less than K, and S is an integer greater than or equal to 1 and less than or equal to Mr; or, the first channel measurement resource is a predefined, pre-configured, or default channel measurement resource associated with the first interference measurement resource. In this implementation, the rules for determining the first channel measurement resource are specified, which is beneficial to the implementation of the scheme.

[0010] Based on the first aspect, in one possible implementation, the method further includes: the terminal device receiving first configuration information from the network device, the first configuration information being used to configure an association between the time-domain resources occupied by the first channel measurement resource and the time-domain resources occupied by the first interference measurement resource. For example, the first configuration information includes the CRI number or resource ID of the first channel measurement resource. This achieves explicit configuration of the association between the first interference measurement resource and the first channel measurement resource.

[0011] Based on the first aspect, in one possible implementation, the K channel measurement resources are the channel measurement resources in the i-th channel measurement resource cycle of the terminal device, and the first interference measurement resource is the interference measurement resource in the i-th interference measurement resource cycle of the terminal device, where i is an integer greater than or equal to 1; the first channel measurement resource is the m-th channel measurement resource among the K channel measurement resources, where m equals i when i is greater than or equal to 1 and less than or equal to K; or, when i is greater than K, m equals the remainder of i and K. This implementation shows another possible way to determine the first channel measurement resource. This implementation can achieve channel measurement corresponding to multiple channel measurement resources through multiple channel measurement resource cycles, which is beneficial to improving the accuracy of interference measurement, and thus improving the accuracy of channel measurement.

[0012] Based on the first aspect, in one possible implementation, the K channel measurement resources are sorted in ascending or descending order of their CRI (Channel Identification Number) numbers; or, the K channel measurement resources are sorted in ascending or descending order of their resource IDs; or, the K channel measurement resources include Mr channel measurement resources and L channel measurement resources, where L = K - Mr, and the Mr channel measurement resources are configured with a higher priority by the network device than the channel measurement resources other than the Mr channel measurement resources in the K channel measurement resources. The channel measurement resources are arranged such that Mr channel measurement resources precede L channel measurement resources; the Mr channel measurement resources are ordered in ascending or descending order of their CRI (Channel Identification Number) sequence number, and the L channel measurement resources are ordered in ascending or descending order of their CRI sequence number; alternatively, the Mr channel measurement resources are ordered in ascending or descending order of their resource ID, and the L channel measurement resources are ordered in ascending or descending order of their resource ID. This implementation specifies the rules for determining the first channel measurement resource, which is beneficial for the implementation of the scheme.

[0013] Based on the first aspect, in one possible implementation, the method further includes: the terminal device receiving second configuration information from the network device, the second configuration information being used to configure the offset value of the first interference measurement resource, and the offset value of the first interference measurement resource being used to determine the time-domain resources occupied by the first interference measurement resource. In this implementation, the network device can configure the offset value of the first interference measurement resource of the terminal device through the configuration information, thereby enabling the measurement of channel measurement resources in multiple beam directions. This is beneficial for improving the accuracy of interference measurement, and thus improving the accuracy of channel measurement.

[0014] Based on the first aspect, in one possible implementation, the offset value of the first interference measurement resource is the offset of the starting time domain position occupied by the first interference measurement resource relative to the starting time domain position occupied by the interference measurement resource in the first interference measurement resource cycle of the terminal device.

[0015] Based on the first aspect, in one possible implementation, the method further includes: the terminal device measuring the reference signal transmitted by the network device on K channel measurement resources in the (i+1)th channel measurement resource period to obtain K channel measurement results; the terminal device measuring the reference signal transmitted by the network device on the second interference measurement resource to obtain a second interference measurement result, wherein the time domain resources occupied by the second interference measurement resource are correlated with the time domain resources occupied by the second channel measurement resource, and the second channel measurement resource is one of the K channel measurement resources in the (i+1)th channel measurement resource period; wherein the second interference measurement result is the interference measurement resource in the (i+1)th interference measurement resource period of the terminal device; the second channel measurement resource is the z-th channel measurement resource among the K channel measurement resources in the (i+1)th channel measurement resource period, wherein when i+1 is greater than or equal to 1 and less than or equal to K, z is equal to i+1; or, when i+1 is greater than K, z is equal to the remainder of i+1 and K. In this implementation, channel measurement and interference measurement of the channel measurement resources in the (i+1)th channel measurement resource period are shown, thereby realizing interference measurement of channel measurement resources in multiple beam directions.

[0016] The second aspect of this application provides a measurement and reporting method, which can be used in a terminal-side communication device, for example, executed by a terminal device. The terminal device can be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, chip system, module, or control unit in the aforementioned device or apparatus; specific details are not limited in this application. It should be noted that, in this application, the term "terminal device" can refer to either the terminal device itself or the chip, functional module, or integrated circuit within the terminal device that performs the method provided in this application; specific details are not limited in this application. In the second aspect and its possible implementations, the method is described using the example of execution by a terminal device. The method includes: a terminal device measuring P channel measurement resources and Q channel measurement resources from a network device to obtain P+Q channel measurement results; where P is an integer greater than or equal to 1, and Q are integers greater than or equal to 1; the terminal device measuring a third interference measurement resource and a fourth interference measurement resource from the network device to obtain a third interference measurement result; the time-domain resources occupied by the third interference measurement resource are correlated with the time-domain resources occupied by the second channel measurement resource; the time-domain resources occupied by the fourth interference measurement resource are correlated with the time-domain resources occupied by the third channel measurement resource; the second channel measurement resource is one of the P channel measurement resources, and the third channel measurement resource is one of the Q channel measurement resources; the terminal device sending a CSI to the network device, which is determined based on the P+Q channel measurement results and the third interference measurement result. Optionally, the P channel measurement resources and Q channel measurement resources are channel measurement resources within a single channel measurement resource period. Optionally, the terminal device measuring P and Q channel measurement resources from the network device to obtain P+Q channel measurement results can be described as follows: the terminal device measuring the reference signal transmitted by the network device on the P and Q channel measurement resources to obtain P+Q channel measurement results. Similarly, the terminal device measuring the third and fourth interference measurement resources from the network device to obtain the third interference measurement result can be described as follows: the terminal device measuring the reference signal transmitted by the network device on the third and fourth interference measurement resources to obtain the third interference measurement result.

[0017] In the above technical solution, a channel measurement resource period includes two parts of channel measurement resources: P channel measurement resources and Q channel measurement resources. The terminal device measures the third and fourth interference measurement resources from the network device to obtain the third interference measurement result. The time-domain resources occupied by the third interference measurement resource are correlated with the time-domain resources occupied by the second channel measurement resource; the time-domain resources occupied by the fourth interference measurement resource are correlated with the time-domain resources occupied by the third channel measurement resource. Therefore, the technical solution of this application can realize channel measurement of multiple channel measurement resources and interference measurement of multiple interference measurement resources within a channel measurement resource period. It enables interference measurement of channel measurement resources in multiple beam directions, thereby improving the accuracy of interference measurement and consequently improving the accuracy of channel measurement.

[0018] Based on the second aspect, in one possible implementation, P channel measurement resources and Q channel measurement resources are channel measurement resources within one channel measurement resource period, the third interference measurement resource is interference measurement resource within one interference measurement resource period, and the fourth interference measurement resource is interference measurement resource within another interference measurement resource period; the interference measurement resource period is shorter than the channel measurement resource period. This facilitates the realization of interference measurement within the cell corresponding to more channel measurement resources.

[0019] Based on the second aspect, in one possible implementation, the length of the interference measurement resource period is an integer multiple of the time interval between the starting time domain position occupied by the first channel measurement resource and the starting time domain position occupied by the second channel measurement resource in any two adjacent CRI numbers within the channel measurement resource period.

[0020] Based on the second aspect, in one possible implementation, the length of the interference measurement resource period is the time interval between the starting time domain position occupied by the first channel measurement resource among P channel measurement resources and the starting time domain position occupied by the first channel measurement resource among Q channel measurement resources.

[0021] The third aspect of this application provides a measurement and reporting method, which can be used in a terminal-side communication device, for example, executed by a terminal device. The terminal device can be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, chip system, module, or control unit within the aforementioned device or apparatus; specific details are not limited in this application. It should be noted that, in this application, the term "terminal device" can refer to the terminal device itself, or to the chip, functional module, or integrated circuit within the terminal device that performs the method provided in this application; specific details are not limited in this application. In the third aspect and its possible implementations, the method is described using the example of execution by a terminal device. The method includes: a terminal device measuring K channel measurement resources from a network device to obtain K channel measurement results, where K is an integer greater than or equal to 2; the terminal device measuring at least two interference measurement resources from the network device to obtain a fifth interference measurement result; wherein each of the at least two interference measurement resources is associated with one of the K channel measurement resources, and different interference measurement resources are associated with different channel measurement resources; the time domain resources occupied by each interference measurement resource are associated with the time domain resources occupied by the channel measurement resources associated with that interference measurement resource; the terminal device reporting a CSI to the network device, which is determined based on M channel measurement resources from the K channel measurement resources and the fifth interference measurement result, where M is less than or equal to K.

[0022] In the above technical solution, the terminal device measures at least two interference measurement resources from the network device to obtain a fifth interference measurement result. Each of these at least two interference measurement resources is associated with one of K channel measurement resources, and different interference measurement resources are associated with different channel measurement resources. The time-domain resources occupied by each interference measurement resource are correlated with the time-domain resources occupied by the channel measurement resources associated with it. Thus, the interference within the cell corresponding to the channel measurement resources associated with the at least two interference measurement resources is measured. The interference within the cell corresponding to other channel measurement resources among the K channel measurement resources can be determined by referring to the interference of the cell corresponding to the channel measurement resources corresponding to the at least two interference measurement resources. Therefore, the intra-cell interference corresponding to the K channel measurement resources is obtained.

[0023] Optionally, the terminal device measures K channel measurement resources from the network device to obtain K channel measurement results, which can be described as: the terminal device measures the reference signals transmitted by the network device on the K channel measurement resources to obtain K channel measurement results.

[0024] Optionally, the terminal device measures at least two interference measurement resources from the network device to obtain K interference measurement results, which can be described as: the terminal device measures the reference signal transmitted by the network device on at least two interference measurement resources to obtain K interference measurement results.

[0025] Optionally, the M channel measurement resources include some or all of the K channel measurement resources.

[0026] Based on the third aspect, in one possible implementation, at least two interference measurement resources are NZP CSI-RS resources used for interference measurement. In other words, at least two interference measurement resources are NZP CSI-RS resources used for intra-cell interference measurement.

[0027] Based on the third aspect, in one possible implementation, the time-domain resources occupied by each interference measurement resource are associated with the time-domain resources occupied by the channel measurement resources associated with that interference measurement resource, including:

[0028] The time-domain resources occupied by the interference measurement resources partially or completely overlap with the time-domain resources occupied by the channel measurement resources; or,

[0029] The time interval between the time domain resources occupied by the interference measurement resource and the time domain resources occupied by the interference measurement resource is not greater than the first duration; or,

[0030] The time interval between the time-domain resources occupied by the interference measurement resource and the time-domain resources occupied by the interference measurement resource is a second duration. In this implementation, some possible implementations of the association relationship are shown to achieve the measurement of interference within the cell corresponding to the associated channel measurement resource through the interference measurement resource.

[0031] Based on the third aspect, in one possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources; these A channel measurement resources are either the first A channel measurement resources out of K channel measurement resources, or the last A channel measurement resources out of K channel measurement resources, where A is an integer greater than 1 and less than or equal to K; the K channel measurement resources are sorted in ascending or descending order of their CRI (Channel Identification Number) numbers; or, the K channel measurement resources are sorted in ascending or descending order of their resource IDs. This implementation specifies the method for determining the channel measurement resources associated with at least two interference measurement resources, which is beneficial for the implementation of the scheme.

[0032] Based on the third aspect, in one possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources. The CRI numbers of these A channel measurement resources are the same as the CRI numbers of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than a third threshold. Alternatively, the CRI numbers of these A channel measurement resources are the same as the CRI numbers of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than or equal to the third threshold. Alternatively, the resource IDs of these A channel measurement resources are the same as the resource IDs of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than or equal to the third threshold. This implementation specifies another way to determine the channel measurement resources associated with at least two interference measurement resources, which is beneficial for the implementation of the scheme.

[0033] Based on the third aspect, in one possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources. These A channel measurement resources are either the first A or the last A channel measurement resources out of Mr channel measurement resources. Specifically, Mr channel measurement resources are those configured by the network device with a higher priority than the channel measurement resources other than Mr channel measurement resources among the K channel measurement resources; Mr is a number greater than or equal to 1 and less than K; Mr channel measurement resources are sorted in ascending or descending order of their CRI (Category I) numbers; or, Mr channel measurement resources are sorted in ascending or descending order of their resource IDs; or, Mr channel measurement resources are sorted according to the configuration order of the channel measurement resources configured by the network device. This implementation specifies another way to determine the channel measurement resources associated with at least two interference measurement resources, which is beneficial for the implementation of the scheme.

[0034] Based on the third aspect, in one possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources; these A channel measurement resources are predefined, preconfigured, or default channel measurement resources associated with the at least two interference measurement resources. This implementation specifies another way to determine the channel measurement resources associated with the at least two interference measurement resources, which is beneficial for the implementation of the scheme.

[0035] Based on the third aspect, in one possible implementation, the method further includes: the terminal device receiving sixth configuration information from the network device. The sixth configuration information is used to configure an association between the time-domain resources occupied by the channel measurement resources associated with each of the at least two interference measurement resources and the time-domain resources occupied by the interference measurement resources. For example, the first configuration information includes the CRI number or resource ID of the channel measurement resources associated with the at least two interference measurement resources. This achieves explicit configuration of the association between the at least two interference measurement resources and the channel measurement resources.

[0036] A fourth aspect of this application provides a communication device, comprising:

[0037] The processing module is used to measure K channel measurement resources from the network device and obtain K channel measurement results, where K is an integer greater than or equal to 2; measure a first interference measurement resource from the network device and obtain a first interference measurement result, wherein the time domain resources occupied by the first interference measurement resource are related to the time domain resources occupied by the first channel measurement resource, and the first channel measurement resource is one of the multiple channel measurement resources;

[0038] The transceiver module is used to report CSI to the network device. CSI is determined based on M channel measurement results out of K channel measurement results and the first interference measurement result, where M is less than or equal to K.

[0039] Optionally, the processing module, used to measure K channel measurement resources from the network device and obtain K channel measurement results, can be alternatively described as: the processing module, used to measure reference signals transmitted by the network device on the K channel measurement resources and obtain K channel measurement results. The processing module, used to measure a first interference measurement resource from the network device and obtain a first interference measurement result, can be alternatively described as: the processing module, used to measure reference signals transmitted by the network device on the first interference measurement resource and obtain a first interference measurement result.

[0040] Based on the fourth aspect, in one possible implementation, the first interference measurement resource is an NZP CSI-RS resource used for interference measurement.

[0041] Based on the fourth aspect, in one possible implementation, the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource are related, including: the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource partially or completely overlap; or, the time interval between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource is not greater than a first duration; or, the time interval between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource is a second duration.

[0042] Based on the fourth aspect, in one possible implementation, the first channel measurement resource is the nth channel measurement resource among K channel measurement resources; wherein the K channel measurement resources are sorted in ascending or descending order of their CRI numbers; or, the K channel measurement resources are sorted in ascending or descending order of their resource IDs, where n is an integer greater than or equal to 1 and less than or equal to K; or, the CRI number of the first channel measurement resource is the same as the CRI number of the channel measurement resource with the best signal quality in the historical channel measurement resources of the terminal device; or, the resource ID of the first channel measurement resource is the same as the resource ID of the channel measurement resource with the best signal quality in the historical channel measurement resources of the terminal device; or The first channel measurement resource is the S-th channel measurement resource out of Mr channel measurement resources. The Mr channel measurement resources are channel measurement resources configured by the network device with a higher priority than the channel measurement resources other than the Mr channel measurement resources out of K channel measurement resources. The Mr channel measurement resources are sorted in ascending or descending order of their CRI numbers; or, the Mr channel measurement resources are sorted in ascending or descending order of their resource IDs; Mr is a number greater than or equal to 1 and less than K, and S is an integer greater than or equal to 1 and less than or equal to Mr; or, the first channel measurement resource is a predefined, preconfigured, or default channel measurement resource associated with the first interference measurement resource.

[0043] Based on the fourth aspect, in one possible implementation, the transceiver module is further configured to: receive first configuration information from the network device, wherein the first configuration information is used to configure an association between the time-domain resources occupied by the first channel measurement resource and the time-domain resources occupied by the first interference measurement resource. For example, the first configuration information includes the CRI number or resource ID of the first channel measurement resource.

[0044] Based on the fourth aspect, in one possible implementation, the K channel measurement resources are the channel measurement resources in the i-th channel measurement resource period of the terminal device, and the first interference measurement resource is the interference measurement resource in the i-th interference measurement resource period of the terminal device, where i is an integer greater than or equal to 1; the first channel measurement resource is the m-th channel measurement resource among the K channel measurement resources, where m equals i when i is greater than or equal to 1 and less than or equal to K; or, when i is greater than K, m equals the remainder of i and K.

[0045] Based on the fourth aspect, in one possible implementation, the K channel measurement resources are sorted in ascending or descending order of their CRI (Channel Identification Number) numbers; or, the K channel measurement resources are sorted in ascending or descending order of their resource IDs; or, the K channel measurement resources include Mr channel measurement resources and L channel measurement resources, where L = K - Mr, and the Mr channel measurement resources are configured with a higher priority by the network device than the other K channel measurement resources excluding the Mr channel measurement resources. The channel measurement resources are arranged such that Mr channel measurement resources precede L channel measurement resources; Mr channel measurement resources are ordered in ascending or descending order of their CRI numbers, and L channel measurement resources are ordered in ascending or descending order of their CRI numbers; or, Mr channel measurement resources are ordered in ascending or descending order of their resource IDs, and L channel measurement resources are ordered in ascending or descending order of their resource IDs.

[0046] Based on the fourth aspect, in one possible implementation, the transceiver module is further configured to: receive second configuration information from the network device, the second configuration information being used to configure the offset value of the first interference measurement resource, and the offset value of the first interference measurement resource being used to determine the time domain resources occupied by the first interference measurement resource.

[0047] Based on the fourth aspect, in one possible implementation, the offset value of the first interference measurement resource is the offset of the starting time domain position occupied by the first interference measurement resource relative to the starting time domain position occupied by the interference measurement resource in the first interference measurement resource cycle of the terminal device.

[0048] Based on the fourth aspect, in one possible implementation, the processing module is further configured to: measure the reference signals transmitted by the network device on the K channel measurement resources in the (i+1)th channel measurement resource period, and obtain the K channel measurement results; measure the reference signals transmitted by the network device on the second interference measurement resource, and obtain the second interference measurement result, wherein the time domain resources occupied by the second interference measurement resource are correlated with the time domain resources occupied by the second channel measurement resource, and the second channel measurement resource is one of the K channel measurement resources in the (i+1)th channel measurement resource period; wherein the second interference measurement result is the interference measurement resource in the (i+1)th interference measurement resource period of the terminal device; the second channel measurement resource is the z-th channel measurement resource among the K channel measurement resources in the (i+1)th channel measurement resource period, wherein when i+1 is greater than or equal to 1 and less than or equal to K, z is equal to i+1; or, when i+1 is greater than K, z is equal to the remainder of i+1 and K.

[0049] The fifth aspect of this application provides a communication device, comprising:

[0050] The processing module measures P channel measurement resources and Q channel measurement resources from the network device to obtain P+Q channel measurement results; where P is an integer greater than or equal to 1, and Q are integers greater than or equal to 1; it measures the third interference measurement resource and the fourth interference measurement resource from the network device to obtain the third interference measurement result; the time domain resources occupied by the third interference measurement resource are correlated with the time domain resources occupied by the second channel measurement resource; the time domain resources occupied by the fourth interference measurement resource are correlated with the time domain resources occupied by the third channel measurement resource; the second channel measurement resource is one of the P channel measurement resources, and the third channel measurement resource is one of the Q channel measurement resources;

[0051] The transceiver module is used to send CSI to the network device. This CSI is determined based on P+Q channel measurement results and a third interference measurement result. Optionally, the P channel measurement resources and Q channel measurement resources are channel measurement resources within a single channel measurement resource period.

[0052] Optionally, a processing module is used to measure P channel measurement resources and Q channel measurement resources from the network device to obtain P+Q channel measurement results. This can be alternatively described as: a processing module used to measure reference signals transmitted by the network device on the P channel measurement resources and Q channel measurement resources to obtain P+Q channel measurement results. A processing module is also used to measure third and fourth interference measurement resources from the network device to obtain third interference measurement results. This can be alternatively described as: a processing module used to measure reference signals transmitted by the network device on the third and fourth interference measurement resources to obtain third interference measurement results.

[0053] Based on the fifth aspect, in one possible implementation, the P channel measurement resources and Q channel measurement resources are channel measurement resources within one channel measurement resource period, the third interference measurement resource is interference measurement resource within one interference measurement resource period, and the fourth interference measurement resource is interference measurement resource within another interference measurement resource period; the interference measurement resource period is shorter than the channel measurement resource period.

[0054] Based on the fifth aspect, in one possible implementation, the length of the interference measurement resource period is an integer multiple of the time interval between the starting time domain position occupied by the first channel measurement resource and the starting time domain position occupied by the second channel measurement resource in any two adjacent CRI numbers within the channel measurement resource period.

[0055] Based on the fifth aspect, in one possible implementation, the length of the interference measurement resource period is the time interval between the starting time domain position occupied by the first channel measurement resource among P channel measurement resources and the starting time domain position occupied by the first channel measurement resource among Q channel measurement resources.

[0056] The sixth aspect of this application provides a communication device, comprising:

[0057] The processing module is used to measure K channel measurement resources from the network device to obtain K channel measurement results, where K is an integer greater than or equal to 2; and to measure at least two interference measurement resources from the network device to obtain a fifth interference measurement result; wherein each of the at least two interference measurement resources is associated with one of the K channel measurement resources, and different interference measurement resources are associated with different channel measurement resources; the time domain resources occupied by each interference measurement resource are related to the time domain resources occupied by the channel measurement resources associated with that interference measurement resource;

[0058] The transceiver module is used to report CSI to the network device. The CSI is determined based on M channel measurement resources out of the K channel measurement resources and the fifth interference measurement result, where M is less than or equal to K.

[0059] Based on the sixth aspect, in one possible implementation, at least two interference measurement resources are NZP CSI-RS resources used for interference measurement. In other words, at least two interference measurement resources are NZP CSI-RS resources used for intra-cell interference measurement.

[0060] Based on the sixth aspect, in one possible implementation, the time-domain resources occupied by each interference measurement resource are associated with the time-domain resources occupied by the channel measurement resources associated with that interference measurement resource, including:

[0061] The time-domain resources occupied by the interference measurement resources partially or completely overlap with the time-domain resources occupied by the channel measurement resources; or,

[0062] The time interval between the time domain resources occupied by the interference measurement resource and the time domain resources occupied by the interference measurement resource is not greater than the first duration; or,

[0063] The time interval between the time domain resources occupied by the interference measurement resource and the time domain resources occupied by the interference measurement resource is the second duration.

[0064] Based on the sixth aspect, in one possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources; the A channel measurement resources are either the first A channel measurement resources out of K channel measurement resources, or the last A channel measurement resources out of K channel measurement resources, where A is an integer greater than 1 and less than or equal to K; the K channel measurement resources are sorted in ascending or descending order of their CRI numbers; or, the K channel measurement resources are sorted in ascending or descending order of their resource IDs.

[0065] Based on the sixth aspect, in one possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources. The CRI numbers of these A channel measurement resources are the same as the CRI numbers of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than a third threshold. Alternatively, the CRI numbers of these A channel measurement resources are the same as the CRI numbers of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than or equal to the third threshold. Alternatively, the resource IDs of these A channel measurement resources are the same as the resource IDs of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than or equal to the third threshold. Alternatively, the resource IDs of these A channel measurement resources are the same as the resource IDs of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than or equal to the third threshold.

[0066] Based on the sixth aspect, in one possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources. These A channel measurement resources are either the first A channel measurement resources or the last A channel measurement resources out of Mr channel measurement resources. Specifically, Mr channel measurement resources are those configured by the network device with a priority higher than the channel measurement resources other than Mr channel measurement resources among the K channel measurement resources; Mr is a number greater than or equal to 1 and less than K; Mr channel measurement resources are sorted in ascending or descending order of their CRI (Category I) numbers; or, Mr channel measurement resources are sorted in ascending or descending order of their resource IDs; or, Mr channel measurement resources are sorted according to the configuration order of the channel measurement resources configured by the network device.

[0067] Based on the sixth aspect, in one possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources; the A channel measurement resources are predefined, preconfigured, or default channel measurement resources associated with the at least two interference measurement resources.

[0068] Based on the sixth aspect, in one possible implementation, the transceiver module is further configured to: receive sixth configuration information from the network device. The sixth configuration information is used to configure an association between the time-domain resources occupied by the channel measurement resources associated with each of the at least two interference measurement resources and the time-domain resources occupied by the interference measurement resources.

[0069] A seventh aspect of this application provides a communication device comprising a processor and a memory. The memory stores computer programs or computer instructions, and the processor is configured to call and execute the computer programs or computer instructions stored in the memory, causing the processor to implement any one of the implementation methods of the first to third aspects.

[0070] Optionally, the communication device may also include a transceiver, and the processor is used to control the transceiver to send and receive signals.

[0071] An eighth aspect of this application provides a communication device including a processor and an interface circuit. The processor is configured to communicate with other devices via the interface circuit and to perform the method described in any one of the first to third aspects. The processor may include one or more devices.

[0072] A ninth aspect of this application provides a communication device including a processor for connection to a memory, for calling a program stored in the memory to execute the method described in any one of the first to third aspects. The memory may be located within or outside the communication device. The processor may include one or more processors.

[0073] In one implementation, the terminal device of the first aspect, the second aspect, and the third aspect mentioned above can be a chip or a chip system.

[0074] Optionally, the communication device shown in the fourth, fifth, and sixth aspects can be a terminal device, a communication module in a terminal device, or a chip in a terminal device responsible for communication functions.

[0075] The tenth aspect of this application provides a computer program product, including a computer program or instructions that, when run on a computer, cause the computer to perform any of the implementations of any one of the first to third aspects.

[0076] The eleventh aspect of this application provides a computer-readable storage medium including a computer program or instructions that, when executed on a computer, cause the computer to perform any of the implementations of the first to third aspects.

[0077] The twelfth aspect of this application provides a chip device including a processor for calling a computer program or computer instructions in memory to cause the processor to execute any one of the implementations of the first to third aspects described above.

[0078] Optionally, the processor is coupled to the memory via an interface.

[0079] Optionally, the memory is either built into the chip device or connected to the chip device.

[0080] As can be seen from the above technical solution, the method provided in this application includes: a terminal device measuring K channel measurement resources from a network device to obtain K channel measurement results. K is an integer greater than or equal to 2. Then, the terminal device measures a first interference measurement resource from the network device to obtain a first interference measurement result. The time-domain resources occupied by the first interference measurement resource are correlated with the time-domain resources occupied by the first channel measurement resource. The first channel measurement resource is one of multiple channel measurement resources. The terminal device reports CSI to the network device. This CSI is determined based on M channel measurement results from the K channel measurement resources and the first interference measurement result. M is less than or equal to K. This achieves the measurement of interference within the cell corresponding to the channel measurement resource associated with the first interference measurement resource. The interference within the cell corresponding to other channel measurement resources among the K channel measurement resources can be determined by referring to the interference within the cell corresponding to the channel measurement resource associated with the first interference measurement resource. Thus, the measurement of interference within the cell corresponding to the K channel measurement resources is achieved. Attached Figure Description

[0081] Figure 1 is a schematic diagram of an open radio access network (open RAN, O-RAN, or ORAN) system according to an embodiment of this application;

[0082] Figure 2 is a structural schematic diagram of an access network device according to an embodiment of this application;

[0083] Figure 3 is a schematic diagram of a communication system according to an embodiment of this application;

[0084] Figure 4 is another schematic diagram of the communication system according to an embodiment of this application;

[0085] Figure 5 is a schematic diagram of the structure of digital beamforming according to an embodiment of this application;

[0086] Figure 6 is a schematic diagram of the simulated beamforming structure in an embodiment of this application;

[0087] Figure 7 is a schematic diagram of the hybrid beamforming structure according to an embodiment of this application;

[0088] Figure 8 is a schematic diagram of an embodiment of the measurement and reporting method of this application;

[0089] Figure 9 is a schematic diagram of the K channel measurement resources and the first interference measurement resource in an embodiment of this application;

[0090] Figure 10 is another schematic diagram of the K channel measurement resources and the first interference measurement resources in an embodiment of this application;

[0091] Figure 11A is a schematic diagram showing the relationship between the first channel measurement resource and the first interference measurement resource in an embodiment of this application;

[0092] Figure 11B is another schematic diagram showing the relationship between the first channel measurement resource and the first interference measurement resource in an embodiment of this application;

[0093] Figure 11C is another schematic diagram showing the relationship between the first channel measurement resource and the first interference measurement resource in an embodiment of this application;

[0094] Figure 12 is a schematic diagram of another embodiment of the measurement and reporting method of this application;

[0095] Figure 13 is another schematic diagram of the K channel measurement resources and the first interference measurement resources in an embodiment of this application;

[0096] Figure 14 is a schematic diagram of another embodiment of the measurement and reporting method of this application;

[0097] Figure 15 is a schematic diagram of the second channel measurement resources and the third interference measurement resources, and the third channel measurement resources and the fourth interference measurement resources in an embodiment of this application.

[0098] Figure 16 is a schematic diagram of another embodiment of the measurement and reporting method of this application;

[0099] Figure 17A is a schematic diagram of K channel measurement resources and at least two interference measurement resources in an embodiment of this application;

[0100] Figure 17B is another schematic diagram of K channel measurement resources and at least two interference measurement resources in an embodiment of this application;

[0101] Figure 17C is another schematic diagram of K channel measurement resources and at least two interference measurement resources according to an embodiment of this application;

[0102] Figure 18A is another schematic diagram of K channel measurement resources and at least two interference measurement resources according to an embodiment of this application;

[0103] Figure 18B is another schematic diagram of K channel measurement resources and at least two interference measurement resources according to an embodiment of this application;

[0104] Figure 18C is another schematic diagram of K channel measurement resources and at least two interference measurement resources according to an embodiment of this application;

[0105] Figure 19 is a structural schematic diagram of a communication device according to an embodiment of this application;

[0106] Figure 20 is another structural schematic diagram of the communication device according to an embodiment of this application;

[0107] Figure 21 is a structural schematic diagram of the terminal device of this application. Detailed Implementation

[0108] This application provides a measurement and reporting method and related apparatus for measuring interference within a cell corresponding to a channel measurement resource associated with a first interference measurement resource. Interference within cells corresponding to other channel measurement resources among the K channel measurement resources can be determined by referring to the interference within cells corresponding to the channel measurement resources associated with the first interference measurement resource. This achieves the measurement of interference within cells corresponding to the K channel measurement resources.

[0109] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0110] References to "one embodiment" or "some embodiments" as described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0111] In the description of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.

[0112] It is understood that in this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information to indicate A, it can be understood that the instruction information carries A, directly indicates A, or indirectly indicates A.

[0113] The technical solutions of this application can be applied to various communication systems. For example, 5th generation (5G) systems, new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunication system (UMTS), future mobile communication systems, vehicle-to-everything (V2X) communication systems, device-to-device (D2D) communication systems, Internet of Things (IoT) communication systems, industrial internet communication systems, or satellite communication systems, etc. The wireless communication systems involved in this application also include, but are not limited to, narrowband Internet of Things (NB-IoT) systems.

[0114] The communication systems to which this application applies include terminal equipment and network equipment. Terminal equipment and network equipment are described below.

[0115] Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), fixed wireless access (FWA), customer premises equipment (CPE), etc., refers to devices that include wireless communication capabilities (providing voice / data connectivity to users). Examples include handheld devices with wireless connectivity, in-vehicle devices, and machine-type communication (MTC) terminals. Currently, terminal devices can include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving (e.g., drones, vehicles), wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes. For example, wireless terminals in self-driving can be drones, helicopters, or airplanes. For example, wireless terminals in vehicle-to-everything (V2X) can be in-vehicle equipment, vehicle-mounted equipment, in-vehicle modules, vehicles, or ships. Wireless terminals in industrial control can be cameras, robots, or robotic arms. Wireless terminals in smart homes can be televisions, air conditioners, robot vacuums, speakers, or set-top boxes. The terminal device can also be a device or module that is connected to the communication system shown above and has corresponding communication functions. The terminal device usually contains a communication module, circuit or chip that performs the corresponding communication function, and the terminal device is also configured with program instructions for performing the corresponding communication function.

[0116] It should be noted that the terminal device can be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, chip system, module, or control unit in the device or apparatus shown above; the specific application is not limited to any particular type. It should also be noted that in this application, when referring to a terminal device, it can refer to the terminal device itself, or to the chip, functional module, or integrated circuit within the terminal device that performs the method provided in this application; the specific application is not limited to any particular type.

[0117] A network device is a device deployed in a radio access network to provide wireless communication functions for terminal devices. Network devices may also be referred to as radio access network (RAN) entities, access nodes, network nodes, access network equipment, or communication devices, etc.

[0118] Specifically, the network equipment can be access network equipment for cellular systems related to the 3rd Generation Partnership Project (3GPP). For example, fourth-generation (4G) mobile communication systems, 5G mobile communication systems, or future mobile communication systems. The network equipment can also be access network equipment in open RAN (O-RAN or ORAN) or cloud radio access network (CRAN). Alternatively, the network equipment can also be access network equipment in a communication system resulting from the integration of two or more of the above communication systems.

[0119] Network equipment includes, but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) systems, macro base station, micro base station, wireless relay node, donor node, radio controller in CRAN scenarios, wireless backhaul node, transmission point (TP), or transmission and reception point (or transmit / receive point, TRP). Network equipment can also be access network equipment in 5G mobile communication systems. For example, a next-generation NodeB (gNB) in a new radio (NR) system, a transmission and reception point (TRP) or transmit / receive point (TP), or one or more antenna panels (including multiple antenna panels) of a base station in a 5G mobile communication system. Alternatively, network equipment can also be network nodes that constitute a gNB or transmission point. For example, a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. CUs and DUs can be set up separately or included in the same network element. For example, a BBU. RUs can be included in radio equipment or radio units. For example, in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). Alternatively, network equipment can also be servers, wearable devices, vehicles, or in-vehicle equipment, etc. For example, in V2X technology, network devices can be roadside units (RSUs).

[0120] It should be noted that CU (or CU-CP and CU-UP), DU, or RU may have different names in different systems, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open centralized unit (O-CU) or an open CU, DU can also be called an open distributed unit (O-DU), centralized unit control plane (CU-CP) can also be called an open centralized unit control plane (O-CU-CP) or an open CU-CP, centralized unit user plane (CU-UP) can also be called an open centralized unit user plane (O-CU-UP) or an open CU-UP, and RU can also be called an open radio unit (O-RU). This application does not impose any specific limitations. Any of the units CU, 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.

[0121] Figure 1 is a schematic diagram of an ORAN system according to an embodiment of this application. The ORAN system includes a core network, access network equipment, and UE. Optionally, the ORAN system may also include other components besides those shown in Figure 1, which is not limited in this application.

[0122] Access network devices can communicate with the core network (CN) via a backhaul link. Access network devices can also communicate with the UE via an air interface. Specifically, the BBU in the access network device communicates with the core network via a backhaul link. The RU in the access network device communicates with at least one UE via an air interface. The BBU communicates with at least one RU via a fronthaul link; the BBU and RU may or may not be co-located.

[0123] A BBU consists of at least one CU and at least one DU, and the CU and DU can communicate with each other via at least one midhaul link.

[0124] In one possible implementation, as shown in Figure 2, the CU is a logical node carrying 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. Optionally, the CU can 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 of the DU) 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 of the F1 interface, defining the signaling procedures of F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0125] Optionally, as shown in Figure 2, the CU can be split into 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 access and mobility management (AMF) function 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. In the core network, network elements used to implement user plane functions, such as the user plane function (UPF) in a 5G system, are responsible for forwarding and receiving data 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, CU or DU can be configured to have more protocol layer functions, or 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. Furthermore, the functions of CU or DU can be divided according to service type or other system requirements, such as by latency, placing functions that need to meet low latency requirements in the DU and functions that do not need to meet such latency requirements in the CU.

[0126] In one possible implementation, as shown in Figure 2, the DU is a logical node carrying the RLC layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, 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.

[0127] In one possible implementation, as shown in Figure 2, the RU is a logical node carrying both lower physical layer (PHY) and radio frequency (RF) processing. In some examples, the RU may be a 3GPP TRP or a remote radio head (RRH) or other similar entity. In some examples, the Low-PHY includes PHY processing functions 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.

[0128] 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) interface. LLS-CUS may include a Lower-Layer Split control (LLS-C) interface and a Lower-Layer Split user (LLS-U) interface, providing the control plane (C-Plane) and user plane (U-Plane) respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via a Lower-Layer Split management (LLS-M) interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0129] 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.

[0130] In different systems, CU (or CU-CP and 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 O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples.

[0131] It should be noted that network devices can be devices or apparatuses with chips, or devices or apparatuses with integrated circuits, or chips, chip systems, modules, or control units in the devices or apparatuses shown above; this application does not impose any specific limitations. It should also be noted that in this application, the term "network device" can refer to the network device itself, or to chips, functional modules, or integrated circuits within the network device that implement the methods provided in this application; this application does not impose any specific limitations.

[0132] To facilitate understanding of the technical solutions of the embodiments of this application, the following, in conjunction with Figures 3 and 4, illustrates two possible communication systems to which the methods provided in the embodiments of this application are applicable.

[0133] Figure 3 is a schematic diagram of a communication system according to an embodiment of this application. As shown in Figure 3, the communication system includes at least one network device and at least one terminal device. For example, network device 311, terminal device 321, and terminal device 322 are shown in Figure 3. Network device 311 can transmit data with terminal device 321 and terminal device 322. The technical solution of this application can be executed between network device 311 and terminal device 321 or terminal device 322.

[0134] Figure 4 is another schematic diagram of the communication system according to an embodiment of this application. As shown in Figure 4, the communication system may include at least two network devices and at least one terminal device. For example, network devices 411, 412, 413, and terminal device 421 are shown in Figure 4. Terminal device 421 may be provided with communication services by multiple network devices. For example, as shown in Figure 4, network device 411 may transmit with terminal device 421, network device 412 may transmit with terminal device 421, and network device 413 may transmit with terminal device 421. That is, a terminal device may be provided with communication services by multiple network devices simultaneously. The technical solutions of this application can be implemented between terminal device 421 and network devices 411, 412, or 413.

[0135] The following describes some of the technical terms used in this application.

[0136] Antenna Port: An antenna port is a logical concept. It typically refers to a set of resource elements (REs) with specific resources used to transmit a particular signal. For example, in LTE's Channel State Information Reference Signals (CSI-RS) and NR and LTE's CSI-RS, each antenna port has its own RE position or code division position. Based on these parameters, the signal transmitted at that antenna port can be determined, allowing for channel estimation and obtaining the channel information for that antenna port. The concept of an antenna port differs from that of a physical antenna because it is a logical abstraction and does not involve specific physical implementations. In contrast, a physical antenna is a physical, concrete concept. A physical antenna generally refers to the physical channel on a Remote Radio Unit (RRU) or Active Antenna Unit (AAU) that includes filters and power amplifiers; it is commonly referred to as the number of antennas in the device (T / R). A physical antenna is a physical entity, and each physical antenna has corresponding power amplifiers, filters, and other physical components. There is no one-to-one correspondence between antenna ports and physical antennas. In the downlink, antenna ports and downlink reference signals can have a one-to-one correspondence: if the same reference signal is transmitted through multiple physical antennas, then these physical antennas correspond to one antenna port. This means that one physical port can correspond to one physical antenna, and one antenna port can correspond to one reference signal. Multiple physical ports can be mapped to the same antenna port.

[0137] Antenna port group: A set of multiple antenna ports. In one possible implementation, the base station groups multiple antenna ports to obtain multiple antenna port groups. In another possible implementation, an antenna port group can be a set of multiple digital channels corresponding to the same analog beam. Alternatively, multiple digital channels corresponding to the same analog beam can be divided into multiple subsets, each subset being called an antenna port group.

[0138] A beam is a directional electromagnetic wave formed by an antenna array of a device (e.g., network equipment or terminal equipment), much like a flashlight focusing its light in one direction. Sending or receiving signals in beams can effectively increase the transmission distance. In other words, a beam can be understood as a directional electromagnetic wave, and the beam direction can be understood as the direction in which the electromagnetic wave points. Multiple electromagnetic waves vibrate more strongly in one direction and less strongly in others, thus forming a directional electromagnetic wave.

[0139] The beam can be a wide beam, a narrow beam, or other types of beam, and the beamforming technology can be beamforming technology or other technologies. Beamforming technology can specifically be digital beamforming technology, analog beamforming technology, and hybrid digital / analog beamforming technology.

[0140] 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 Indication (TCI) field in downlink control information (DCI) to indicate a transmission configuration indicator state (TCI-state). The terminal device then determines the data beam based on the reference resources contained in this TCI state.

[0141] Different beams can be considered as different resources. Each beam has a corresponding direction, angle, etc.

[0142] In the NR protocol, a beam 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. The beam can be indicated by the Transmission Configuration Indication State (TCI-state) parameter or by the spatial relation parameter. Therefore, in this application, the beam 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. The beam can also be replaced with other beam-related terms, which are not limited herein.

[0143] Analog beam: A beam obtained by weighting with analog weights. For example, this beam can be obtained by weighting with a phase shifter.

[0144] Channel state information includes channel-related information between the terminal device and the access network device, used to indicate the channel state between them. For example, channel state information includes at least one of the following: signal strength value, amplitude and phase of channel coefficients, or the rank of the channel matrix. The signal strength value can also be called the signal energy value, and can be the reference signal received power (RSRP) or the received signal strength indication (RSSI). Channel coefficients can be frequency domain channel coefficients or time domain channel coefficients.

[0145] Reference Signals: In the physical layer, uplink communication includes the transmission of uplink physical channels and uplink signals. Uplink physical channels include the Physical Random Access Channel (PRACH), Physical Uplink Control Channel (PUCCH), and Physical Uplink Shared Channel (PUSCH). Uplink signals can be uplink reference signals, such as sounding reference signals (SRS), physical uplink control channel demodulation reference signals (PUCCH-DMRS), physical uplink shared channel demodulation reference signals (PUSCH-DMRS), phase tracking reference signals (PTRS), and uplink positioning reference signals (PRS). Downlink communication includes the transmission of downlink physical channels and downlink signals. The downlink physical channels include the physical broadcast channel (PBCH), physical downlink control channel (PDCCH), and physical downlink shared channel (PDSCH). Downlink signals can be downlink reference signals, such as the primary synchronization signal (PSS), secondary synchronization signal (SSS), physical downlink control channel demodulation reference signal (PDCCH-DMRS), PDSCH demodulation reference signal (PDSCH-DMRS), PTRS, CSI-RS, cell-specific reference signal (CRS), tracking reference signal (TRS), and downlink positioning reference signal.

[0146] Resources: Reference signals are configured in the form of resources, also known as reference signal resources. Network devices configure various reference signals to terminal devices in the form of resources. A resource is a configuration information unit, which typically includes parameters related to a reference signal, such as the time-frequency resource location, number of ports, and time-domain type (periodic / semi-persistent / aperiodic), etc. Resources can carry uplink signals or downlink signals. Uplink signals include, but are not limited to, SRS and demodulation reference signal (DMRS). Downlink signals include, but are not limited to, CSI-RS, cell specific reference signal (CS-RS), user equipment specific reference signal (US-RS), DMRS, and synchronization signal / physical broadcast channel block (SS / PBCH block). Among them, the SS / PBCH block can be simply referred to as the synchronization signal block (SSB).

[0147] This can also be understood as the reference signal and reference signal resource being interchangeable. Similarly, the reference signal index and reference signal resource index are interchangeable.

[0148] Precoding and Codebook: Multiple-input multiple-output (MIMO) technology is used to increase system capacity and improve throughput. For example, the signal received at the receiver is y = Hx + n, where y is the received signal, H is the channel, x is the transmitted signal, and n is noise. In communication systems with multiple antennas, the signals from multiple transmitting antennas can be superimposed on any one receiving antenna. Therefore, the method of transmitting signals at the transmitter affects the performance of the communication system, and the recovery of the transmitted signal at the receiver is often complex. In this context, precoding is used to reduce system overhead and maximize the system capacity of MIMO. It also reduces the complexity of eliminating inter-channel interference in the receiver. The signal received at the receiver can then be represented as y = HPx + n, where P is the precoding matrix or precoding vector. To simplify implementation complexity, P can be selected from a predetermined set of matrices or vectors. This set of matrices or vectors is called the codebook, and the transmitter uses a codebook-based transmission method to transmit the signal. If the sending end knows all the information of H, then P can be obtained by the sending end itself, that is, the sending end uses a non-codebook-based sending method to send the signal.

[0149] In higher frequency communication systems, base stations typically use massive MIMO antennas. Base stations improve coverage by using high array gain to combat path loss caused by higher frequency bands. From the perspective of base station implementation, even with massive MIMO antennas, the array weighting methods used for different frequency bands and array sizes can be broadly categorized into three types based on beamforming implementation schemes:

[0150] I. Digital beamforming.

[0151] The structure of digital beamforming is shown in Figure 5, where each antenna element or group of antenna elements is directly connected to a digital channel. The structure shown in Figure 5 is a typical structure for a low-frequency array antenna with massive MIMO (Multiple-Input Multiple-Output). Because each antenna signal is directly converted to the digital domain, subsequent array weighting is performed in the digital domain, hence the name digital beamforming. Digital domain signal processing offers the highest degree of freedom and can support very complex signal processing methods; therefore, for the same array size, the performance of digital beamforming (DBF) architecture is also the best. On the other hand, due to the high power consumption and cost of digital-to-analog converters (DACs) or analog-to-digital converters (ADCs), especially under large bandwidth conditions, DBF also has the highest cost for the same array size.

[0152] II. Analog beamforming (ABF).

[0153] The structure of analog beamforming is shown in Figure 6. Each antenna element or group of antenna elements is connected to an analog phase shifter. Multiple antenna elements are then combined in the analog domain and connected to a digital-to-analog converter (DAC) or analog-to-digital converter (ADC). Compared to DBF, the entire antenna array in ABF corresponds to only one DAC, making its biggest advantage low cost and power consumption. However, ABF also has significant limitations. The phase shifter settings in the analog domain determine the beam direction of the beamforming. Because signals are directly combined in the analog domain, unlike DBF which utilizes digital signal processing for weighting, ABF requires pre-configuring the phase shifter weights during transmission and reception. This process necessitates beam scanning during link establishment, introducing additional latency. Furthermore, if the analog beam is blocked or shifted, causing misalignment, the system's link quality will rapidly degrade or even fail. Therefore, the communication reliability of ABF is lower than that of DBF.

[0154] III. Hybrid beamforming (HBF).

[0155] The structure of the HBF is shown in Figure 7. The HBF is an intermediate form between the ABF and DBF. Figure 7 illustrates three digital channels, each corresponding to two phase shifters. The HBF has a certain number of digital channels, supporting digital beamforming, and each digital channel drives multiple antenna elements (which can be called analog subarrays). Compared to the ABF, for the same array size, the size of the analog subarray driven by each digital channel is smaller. Therefore, the beam transmitted through the HBF is wider, more reliable, and has lower beam scanning overhead.

[0156] In the HBF architecture, communication quality is better when the analog beam is aligned with the communication target. The direction of the analog beam is determined by its weights. For terminal equipment, the process of the base station selecting the analog beam can be called beam training or beam scanning. The beam scanning process includes: the base station transmitting reference signals using different analog beam weights; the terminal equipment measuring the reference signals and feeding back its measurement results; and thus assisting the base station in selecting the analog beam with better signal quality.

[0157] To transmit data to terminal devices, base stations need to perform precoding on the digital channel and select appropriate coding and modulation orders. The purpose of precoding is to better match the antenna to the channel, ensuring better signal quality and less interference when the transmitted data reaches the terminal device. Appropriate modulation orders and code rates maximize channel transmission capacity while ensuring reliable data transmission. Base stations can determine the precoding and modulation coding scheme (MCS) based on channel quality and channel response. A common method is for the base station to transmit a reference signal, and the terminal device to measure the channel based on the reference signal and feed back the corresponding channel state information to the base station. For example, channel state information includes at least one of the following: precoding information, the number of transport streams supported by the channel (i.e., the channel rank indicator (RI), or the channel quality indicator (CQI). This process can be called CSI feedback. Another approach is for the base station to obtain uplink channel information through an uplink reference signal. Then, based on the reciprocity of uplink and downlink channels, the base station further obtains downlink channel state information between the base station and the terminal device.

[0158] Interference measurement resources mainly include three types: CSI-IM interference measurement resources, NZP CSI-RS interference measurement resources, and ZP CSI-RS interference measurement resources. Among them, NZP CSI-RS interference measurement resources are used for intra-cell interference measurement. Both CSI-IM and ZP CSI-RS interference measurement resources are used for inter-cell interference measurement. This application primarily considers NZP CSI-RS interference measurement resources used for intra-cell interference measurement.

[0159] For aperiodic CSI reporting, the communication protocol specifies three possible configurations for the resource set.

[0160] When a resource set or resource setting is configured, it is used for channel measurements of layer 1 reference signal receiving power (L1-RSRP) or for channel and interference measurements for calculating layer 1 signal-to-interference plus noise ratio (L1-SINR). When two resource sets or resource settings are configured, the first resource set is used for channel measurements, and the second resource set is used for interference measurements based on CSI-IM or NZP CSI-RS. When three resource sets or resource settings are configured, the first resource set is used for channel measurements, the second resource set is used for CSI-IM-based interference measurements, and the third resource set is used for NZP CSI-RS-based interference measurements.

[0161] For semi-persistent or periodic CSI reporting, the communication protocol specifies three possible configurations for the resource set.

[0162] When a resource set or resource setting is configured, it is used for channel measurements in L1-RSRP or for channel and interference measurements in L1-SINR calculation. When two resource sets or resource settings are configured, the first resource set is used for channel measurements, and the second resource set is used for CSI-IM-based interference measurements. For L1-SINR calculation, the second resource set is used for interference measurements based on CSI-IM or NZP CSI-RS.

[0163] If interference measurement is performed on CSI-IM, only one interference measurement resource is configured in the corresponding CSI-IM resource set. If interference measurement is performed on NZP CSI-RS, only one interference measurement resource is configured in the corresponding NZP CSI-RS resource set.

[0164] Under the HBF architecture, the communication protocol specifies that multiple Channel Regulators (CMRs) used for channel measurement (NZP CSI-RS) are associated with only one Interference Meter (IMR) for interference measurement (NZP CSI-RS). These multiple CMRs are some or all of the CMRs configured by the network device for the terminal device. Each CMR corresponds to a simulated beam, and different CMRs correspond to different simulated beams. This can be understood as a beam scanning process to determine the simulated beam with better signal quality. Since multiple CMRs are transmitted in a time-division multiplexing manner, it is impossible to associate multiple CMRs with a single NZP CSI-RS IMR for in-cell interference measurement. Therefore, how to use the NZP CSI-RS IMR to measure the in-cell interference corresponding to multiple CMRs is a problem worth considering. The technical solution of this application is described below with reference to specific embodiments; please refer to the relevant descriptions of the embodiments below for details.

[0165] In this application, the signal quality can optionally be reference signal received power (RSRP), signal-to-interference-plus-noise ratio (SINR), L1-RSRP, L1-SINR, synchronization signal-reference signal received power (SS-RSRP), channel state information-reference signal received power (CSI-RSRP), synchronization signal-to-interference-plus-noise ratio (SS-SINR), or channel state information-to-interference-plus-noise ratio (CSI-SINR), and this application does not limit the specific type.

[0166] The technical solution provided in this application is applicable to both uplink channel measurement and downlink channel measurement. The technical solution of this application will be introduced below using downlink channel measurement as an example.

[0167] In this application, the resource ID of a channel measurement resource is a unique number configured by the network device for that channel measurement resource, used to identify it. The CRI number of a channel measurement resource is its sequence number within the channel measurement resources configured by the network device for the terminal device. For example, the network device configures K channel measurement resources for the terminal device, where K equals 8. The resource IDs of these 8 channel measurement resources could be: 00836, 11523, 118281, 23845, 26783, 78543, 777234, 82381. The CRI numbers of these 8 channel measurement resources would be 0, 1, 2, 3, 4, 5, 6, 7. The terminal device can send the CRI number of the channel measurement resource back to the network device, and the network device can associate the CRI number with the corresponding resource ID to determine which channel measurement resource it is. The CRI number of the channel measurement resource will be used as an example in the following examples.

[0168] In this application, the CRI number can be understood as the CRI value. Semi-persistent can also be called semi-static. Semi-persistent resources can also be called semi-static resources.

[0169] The technical solution of this application is described below with reference to specific embodiments.

[0170] Figure 8 is a schematic diagram of an embodiment of the measurement and reporting method of this application. Referring to Figure 8, the method includes:

[0171] 801. The terminal device measures K channel measurement resources from the network device and obtains K channel measurement results.

[0172] Where K is an integer greater than or equal to 2. Each of the K channel measurement resources corresponds to one analog beam, and different channel measurement resources correspond to different analog beams. The time-domain resources occupied by different channel measurement resources are different.

[0173] Specifically, the network device sends K channel measurement resources to the terminal device. In other words, the network device sends reference signals to the terminal device on the K channel measurement resources. Correspondingly, the terminal device receives the K channel measurement resources from the network device. Or, the terminal device receives the reference signals on the K channel measurement resources from the network device. Then, the terminal device measures the K channel measurement resources. Or, the terminal device measures the reference signals on the K channel measurement resources. The K channel measurement results include the signal quality of the K channel measurement resources. Optionally, the K channel measurement results also include the indexes of the K channel measurement resources. For example, as shown in Figure 9, the K channel measurement resources include CMR#0, CMR#1, CMR#2, and CMR#3. The CSI serial numbers corresponding to CMR#0, CMR#1, CMR#2, and CMR#3 can be CRI#2, CRI#4, CRI#6, and CRI#8, respectively, and the corresponding resource IDs can be 00836, 11523, 118281, and 23845. CMR#0, CMR#1, CMR#2 and CMR#3 occupy different time-domain resources.

[0174] Optionally, the reference signals carried by the K channel measurement resources are downlink reference signals. Optionally, the downlink reference signals are SSB, CSI-RS, or tracking reference signals (TRS).

[0175] 802. The terminal device measures the first interference measurement resource from the network device and obtains the first interference measurement result.

[0176] The time-domain resources occupied by the first interference measurement resource are correlated with those occupied by the first channel measurement resource. The first channel measurement resource is one of multiple channel measurement resources. For example, as shown in Figure 9, IMR is associated with CMR#0. The first interference measurement resource is the NZP CSI-RS resource used for interference measurement. In other words, the first interference measurement resource is used for intra-cell interference measurement.

[0177] Specifically, the network device sends a first interference measurement resource to the terminal device. In other words, the network device sends a reference signal to the terminal device on the first interference measurement resource. Correspondingly, the terminal device receives the reference signal sent by the network device on the first interference measurement resource. Then, the terminal device measures the first interference measurement resource. Or, the terminal device measures the reference signal on the first interference measurement resource. The first interference measurement result includes the intra-cell interference corresponding to the channel measurement resource corresponding to the first interference measurement resource.

[0178] In one possible implementation, the time-domain behavior of the K channel measurement resources is the same as that of the first interference measurement resource. The time-domain behavior of the K channel measurement resources includes whether they are periodic, aperiodic, or semi-persistent resources. The semi-persistent resource can also be referred to as a semi-persistent resource. The time-domain behavior of the first interference measurement resource includes whether it is a periodic, aperiodic, or semi-persistent resource. For example, both the K channel measurement resources and the first interference measurement resource may be periodic, both may be aperiodic, or both may be semi-persistent.

[0179] In another possible implementation, the time-domain behavior of the K channel measurement resources differs from that of the first interference measurement resource. Please refer to the foregoing descriptions for the time-domain behavior of the K channel measurement resources and the first interference measurement resource. For example, the K channel measurement resources may be periodic resources, and the first interference measurement resource may be a semi-persistent resource. Alternatively, the K channel measurement resources may be periodic resources, and the first interference measurement resource may be aperiodic resources.

[0180] Optionally, one or more of the resource settings for the K channel measurement resources, the resource settings for the first interference measurement resource, and other resource settings may be associated with the same CSI report setting (CSI Resource Settings). These other resource settings may include the resource settings for the ZP CSI-RS interference measurement resource and / or the resource settings for the CSI-IM interference measurement resource. This CSI report setting is used to indicate the reporting format, content, and / or quantity of CSI reports submitted by the terminal device. Optionally, the CSI report setting may also be referred to as a CSI report or a CSI report set. Optionally, resources in the resource settings or resource sets associated with the same CSI report setting have the same temporal domain behavior.

[0181] The following describes some possible implementations of the first channel measurement resources. Other implementations are still applicable to this application, and this application does not limit them.

[0182] I. The first channel measurement resource is the nth channel measurement resource among the K channel measurement resources. n is an integer greater than or equal to 1 and less than or equal to K.

[0183] The K channel measurement resources are sorted in ascending or descending order of their CRI (Channel Identification Number) sequence numbers. Alternatively, they can be sorted in ascending or descending order of their resource IDs. Or, they can be sorted in ascending or descending order of their resource IDs within the channel measurement resource set. Alternatively, they can be sorted according to the configuration order in which the network device configures the channel measurement resources. Optionally, the network device can configure the K channel measurement resources via radio resource control (RRC) signaling, media / medium access control (MAC) element, or downlink control information (DCI). For example, as shown in Figure 9, the CSI sequence numbers corresponding to CMR#0, CMR#1, CMR#2, and CMR#3 can be CRI#2, CRI#4, CRI#6, and CRI#8, respectively. CMR#0, CMR#1, CMR#2, and CMR#3 are ordered in ascending order of their CRI numbers. The first channel measurement resource is CMR#0, which is the first CMR.

[0184] Second, the CRI number of the first channel measurement resource is the same as the CRI number of the channel measurement resource with the best signal quality in the historical channel measurement resources of the terminal device. Alternatively, the resource ID of the first channel measurement resource is the same as the resource ID of the channel measurement resource with the best signal quality in the historical channel measurement resources of the terminal device.

[0185] K channel measurement resources correspond to multiple beams, and historical channel measurement resources also correspond to these multiple beams. It can be understood that historical channel measurement resources of the terminal device are channel measurement resources used to measure multiple beams in the past period before or prior to the K channel measurement resources.

[0186] Optionally, the above implementation method two is merely an example. In actual applications, the CRI number of the first channel measurement resource is the same as the CRI number of the channel measurement resource with signal quality greater than the first threshold in the historical channel measurement resources of the terminal device. Alternatively, the CRI number of the first channel measurement resource is the same as the CRI number of the channel measurement resource with signal quality greater than or equal to the first threshold in the historical channel measurement resources of the terminal device. Alternatively, the resource ID of the first channel measurement resource is the same as the resource ID of the channel measurement resource with signal quality greater than the first threshold in the historical channel measurement resources of the terminal device. Alternatively, the resource ID of the first channel measurement resource is the same as the resource ID of the channel measurement resource with signal quality greater than or equal to the first threshold in the historical channel measurement resources of the terminal device.

[0187] Third, the first channel measurement resource is the S-th channel measurement resource out of the Mr channel measurement resources. The Mr channel measurement resource is the channel measurement resource configured by the network device with a higher priority than the channel measurement resources other than the Mr channel measurement resources out of the K channel measurement resources.

[0188] Here, the Mr channel measurement resources are sorted in ascending or descending order of their CRI numbers. Alternatively, they can be sorted in ascending or descending order of their resource IDs. Or, they can be sorted according to the configuration order of the network devices. Mr represents the number greater than or equal to 1 and less than K. S is an integer greater than or equal to 1 and less than or equal to Mr. For example, as shown in Figure 10, the Mr channel measurement resources include CMR#0 and CMR#1. IMR is associated with CMR#0.

[0189] IV. The first channel measurement resource is a predefined, preconfigured, or default channel measurement resource associated with the first interference measurement resource. For example, as shown in Figure 9, the default IMR is associated with CMR#0.

[0190] Optionally, the embodiment shown in FIG8 further includes step 801a. Step 801a may be performed before step 802.

[0191] 801a. The network device sends first configuration information to the terminal device. Correspondingly, the terminal device receives the first configuration information from the network device.

[0192] Specifically, the first configuration information is used to configure an association between the time-domain resources occupied by the first channel measurement resource and the time-domain resources occupied by the first interference measurement resource. In other words, the first configuration information is used to configure the association between the first channel measurement resource and the first interference measurement resource. That is, the network device explicitly configures the association between the first interference measurement resource and the first channel measurement resource.

[0193] The following describes some possible implementations where the time-domain resources occupied by the first interference measurement resource are correlated with the time-domain resources occupied by the first channel measurement resource. This application still applies to other implementations.

[0194] 1. The time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource partially or completely overlap. Optionally, the time-domain resources occupied by the first interference measurement resource include one or more time-domain symbols, or one or more time slots. The time-domain resources occupied by the first channel measurement resource include one or more time-domain symbols, or one or more time slots. The time-domain symbols can be orthogonal frequency-division multiplexing (OFDM) symbols. For example, as shown in Figure 11A, the first interference measurement resource is IMR, and the first channel measurement resource is CMR#0. The time-domain position occupied by CMR#0 is the same as the time-domain position occupied by IMR. Both the time-domain positions occupied by CMR#0 and IMR can be absolute or relative positions. For example, the time slots where the first time-domain symbol occupied by CMR#0, CMR#1, CMR#2, and CMR#3 is located are {time slot 20, time slot 21, time slot 22, time slot 23}. The time-domain symbol in time slot 20 occupied by CMR#0 is the same as the time-domain symbol in time slot 20 occupied by IMR. For example, if the time slot containing the first time-domain symbol occupied by CMR#0 is time slot 20, and using this time slot as a reference, the time slots containing the first time-domain symbol occupied by CMR#0, CMR#1, CMR#2, and CMR#3 are {time slot 0, time slot 1, time slot 2, time slot 3}, respectively. The time-domain symbol in time slot 0 occupied by CMR#0 is the same as the time-domain symbol in time slot 0 occupied by IMR. For example, as shown in Figure 11B, the first interference measurement resource is IMR, and the first channel measurement resource is CMR#0. The time-domain positions occupied by CMR#0 and IMR partially overlap. For example, as shown in Figure 11B, CMR#0 occupies time slots 1 and 2, while IMR occupies time slots 2 and 3. Therefore, both CMR#0 and IMR occupy time slot 2.

[0195] Second, the time interval between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource is no greater than a first duration T. For example, as shown in Figure 11C, the first interference measurement resource is IMR, and the first channel measurement resource is CMR#0. The time interval between the time-domain position occupied by CMR#0 and the time-domain position occupied by IMR is no greater than a first duration T.

[0196] In this implementation, the first duration can be pre-configured, pre-defined, or indicated by the network device to the terminal device; this application does not specify the specific duration.

[0197] Optionally, the first duration can be determined based on the time-varying nature of the channel. The unit of the first duration can be a time-domain symbol, a slot, a subframe, or a frame, etc., and this application does not limit the specific unit. For example, the first duration can be 5, 10, or 15 slots. As another example, the first duration can be 10, 20, 30, 40, 50, 60, or 70 time-domain symbols.

[0198] Third, the time interval between the time domain resources occupied by the first interference measurement resource and the time domain resources occupied by the first channel measurement resource is the second duration.

[0199] Optionally, the second duration can be preconfigured, predefined, or indicated by the network device to the terminal device; this application does not specify the specific duration.

[0200] The second duration can be a fixed duration, or it can be equal to a coefficient multiplied by a fixed duration; this application does not specify the particular duration. For example, a network device can configure this coefficient for a terminal device, and then the terminal device can determine the second duration by multiplying the coefficient by the fixed duration.

[0201] Optionally, the frequency domain resources occupied by the first interference measurement resource are different from those occupied by the first channel measurement resource.

[0202] Optionally, for periodic resource transmission scenarios, steps 801 to 803 above describe the transmission of K channel measurement resources within one channel measurement resource period and the transmission of interference measurement resources within one interference measurement resource period. Then, the terminal device can transmit data with the network device. The transmission for other channel measurement resource periods and other interference measurement resource periods is similar and will not be described in detail here.

[0203] Network devices can configure the high-level parameter "codebookType" for terminal devices. This codebook type represents possible subtypes and the corresponding parameters for each subtype. The following describes some possible subtypes of the codebook type:

[0204] In one possible implementation, if the codebook type is 'typeII-r19' or 'typeII-PortSelection-r19', then the network device is expected to be configured within the range of 1≤K≤4. If the terminal device uses NZP CSI-RS for interference measurement, then only one resource for interference measurement is configured in the corresponding NZPCSI-RS resource set (NZP-CSI-RS-ResourceSet).

[0205] In another possible implementation, with a codebook type of 'typeI-SinglePanel-r19', it is expected that the network device configuration for K belongs to the range 1≤K≤8. If the terminal device uses NZP CSI-RS for interference measurement, only one resource for interference measurement will be configured in the corresponding NZPCSI-RS resource set.

[0206] Optionally, the terminal device measures the NZP CSI-RS on the first interference measurement resource no later than the last time-domain symbol occupied by the first channel measurement resource.

[0207] Optionally, the embodiment shown in FIG8 further includes step 801b. Step 801b may be performed before step 801.

[0208] 801b. The network device sends third configuration information to the terminal device. Correspondingly, the terminal device receives the third configuration information from the network device.

[0209] The third configuration information is used to configure the K channel measurement resources. For example, the third configuration information includes at least one of the following: time-frequency location information of the K channel measurement resources, the antenna port group corresponding to each of the K channel measurement resources, the number of antenna ports included in each antenna port group, or the channel measurement resource period, or a sequence identifier used to generate the reference signal. The time-frequency resource information includes at least one of the following: the number of time-domain symbols occupied by the reference signal, the frequency-domain bandwidth, or the comb fraction. The channel measurement resource period refers to the transmission period of the K channel measurement resources. For example, as shown in Figure 9, the K channel measurement resources include CMR#0, CMR#1, CMR#2, and CMR#3. One channel measurement resource period includes CMR#0, CMR#1, CMR#2, and CMR#3.

[0210] Optionally, the third configuration information is also used to configure the CSI reporting configuration. For example, the reporting configuration includes at least one of the following: the content to be reported, or the number of reports. For example, the number of measured channel information groups, the number of reported channel information groups, the precoding matrix indication (PMI) configuration corresponding to each channel information group, and / or, parameters related to PMI reporting. It should be noted that the CSI reporting configuration can also be carried through other configuration information; this application does not limit the specifics. Each group of channel information corresponds to a group of antenna ports, meaning that the channel information is obtained by measuring the channel measurement resources corresponding to that antenna port group.

[0211] It should be noted that there is no fixed execution order between steps 801a and 801b. Step 801a can be executed first, followed by step 801b; or step 801b can be executed first, followed by step 801a; or, depending on the circumstances, steps 801a and 801b can be executed simultaneously. This application does not impose any specific restrictions on this.

[0212] It should be noted that the first configuration information and the third configuration information can be the same configuration information or different configuration information; this application does not impose any restrictions on the specifics.

[0213] Optionally, the embodiment shown in FIG8 further includes step 801c. Step 801c may be performed before step 802.

[0214] 801c: The network device sends fourth configuration information to the terminal device. Correspondingly, the terminal device receives the fourth configuration information from the network device.

[0215] The fourth configuration information is used to configure the first interference measurement resource. For example, the fourth configuration information includes at least one of the following: the time-frequency resource location information of the first interference measurement resource, or the interference measurement resource period. The interference measurement resource period refers to the transmission period of the first interference measurement resource. For example, as shown in Figure 9, the first interference measurement resource is an IMR, and one interference measurement resource period includes one IMR.

[0216] 803. The terminal device sends a CSI to the network device. Correspondingly, the network device receives the CSI from the terminal device.

[0217] The CSI is determined based on M channel measurement results out of K channel measurement results and the first interference measurement resource result. M is less than or equal to K. That is, the M channel measurement resources are a subset of the K channel measurement resources. It can be understood that, optionally, the M channel measurement resources include the first channel measurement resource.

[0218] Therefore, in addition to channel measurement, there is also interference measurement. Interference measurement mainly includes intra-cell interference measurement and inter-cell interference measurement. Intra-cell interference measurement commonly uses NZP CSI-RS resources, while inter-cell interference measurement commonly uses CSI-IM resources or ZP CSI-RS resources. Assuming that from the perspective of user k, user k's received signal Y... k The following relationship can be satisfied:

[0219] Among them, H k W represents the spatial channel matrix of user k. k S represents the weight matrix for user k. k This represents the reference signal received by user k. ∑i≠k H k W i S i I represents the interference within user k's cell (i.e., the interference caused by user k's paired user to user k). k This represents the inter-cell interference for user k, n k Let Y represent the noise of user k. k This was obtained through channel measurements using NZP CSI-RS resources. ∑ i≠k H k W i S i It was obtained through interference measurements using NZP CSI-RS resources. k Interference measurements are obtained through CSI-IM or ZP CSI-RS. It is understandable that this is achieved through Y... k -(∑ i≠k H k W i S i +I k )=H k W k S k +n k This is used to obtain noisy channel measurements for user k. Then, user k determines the CSI based on these channel measurements.

[0220] Optionally, CSI includes at least one of the following: an index of one or more channel measurement resources, an index of one or more channel measurement resources, an index of antenna ports in one or more antenna port groups, one or more channel coefficients, one or more channel quality indicators (CQI), one or more RSRPs, one or more PMIs, one or more SINRs, one or more L1-SINRs, or one or more L1-RSRPs.

[0221] For example, CSI includes the channel coefficients for each of the M antenna port groups.

[0222] For example, CSI includes Y channel coefficients, which are determined based on the channel coefficients and second information of each of the M antenna port groups. For instance, the channel coefficients of the M antenna port groups are A0, A1, ..., A... M-1 Second information Therefore, Y channel coefficients

[0223] Optionally, CSI is carried in uplink control information (UCI). For example, CSI is transmitted via the physical uplink control channel (PUCCH) or the physical uplink shared channel (PUSCH).

[0224] Optionally, the terminal device can determine the CSI corresponding to the first channel measurement resource based on the measurement results of the first interference measurement resource associated with the first channel measurement resource, and report it to the network device. For the other channel measurement resources among the K channel measurement resources that are not associated with interference channel measurement resources, the network device can determine the CSI corresponding to those other associated interference channel measurement resources on its own. Alternatively, the terminal device can determine the CSI corresponding to those other associated interference channel measurement resources based on prior information (e.g., historical measurement results of some interference measurement resources), and report it to the network device.

[0225] In the embodiment shown in Figure 8 above, the terminal device measures K channel measurement resources from the network device to obtain K channel measurement results. K is an integer greater than or equal to 2. Then, the terminal device measures a first interference measurement resource from the network device to obtain a first interference measurement result. The time-domain resources occupied by the first interference measurement resource are associated with the time-domain resources occupied by the first channel measurement resource. The first channel measurement resource is one of multiple channel measurement resources. The terminal device reports CSI to the network device. This CSI is determined based on M channel measurement results from the K channel measurement resources and the first interference measurement result. M is less than or equal to K. This achieves the measurement of the interference within the cell corresponding to the channel measurement resource associated with the first interference measurement resource. The interference within the cell corresponding to other channel measurement resources among the K channel measurement resources can be determined by referring to the interference within the cell corresponding to the channel measurement resource associated with the first interference measurement resource. Thus, the measurement of the interference within the cell corresponding to the K channel measurement resources is achieved.

[0226] The embodiment shown in Figure 8 above is a scheme for measuring interference within a cell corresponding to the same channel measurement resource in different channel measurement resource periods using interference measurement resources. In this application, the terminal device can also measure interference within cells corresponding to different channel measurement resources in different channel measurement resource periods using interference measurement resources, which will be described below with reference to the embodiment shown in Figure 12.

[0227] Figure 12 is a schematic diagram of another embodiment of the measurement and reporting method of this application. Referring to Figure 12, the method includes:

[0228] 1201. The terminal device measures K channel measurement resources from the network device for the i-th channel measurement resource period.

[0229] Where i is an integer greater than or equal to 1, and K is an integer greater than or equal to 2.

[0230] Step 1201 is similar to step 801 in the embodiment shown in Figure 8 above. For details, please refer to the relevant description of step 801 in the embodiment shown in Figure 8 above, which will not be repeated here.

[0231] 1202. The terminal device measures the first interference measurement resource of the i-th interference measurement resource cycle from the network device.

[0232] There is a correlation between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource. For some possible implementations of this correlation, please refer to the relevant description of the embodiment shown in Figure 8 above, which will not be repeated here.

[0233] Optionally, the first channel measurement resource is the m-th channel measurement resource among the K channel measurement resources. Where i is greater than or equal to 1 and less than or equal to K, m equals i. Alternatively, when i is greater than K, m equals the remainder of i and K. That is, m = i mod K, where mod represents the remainder. For example, as shown in Figure 13, the K channel measurement resources include CMR#0, CMR#1, CMR#2, and CMR#3. i equals 1, i.e., the first channel measurement resource period, and the first channel measurement resource is the first channel measurement resource among the K channel measurement resources. That is, the first channel measurement resource is CMR#0. Or, i equals 2, i.e., the second channel measurement resource period, and the first channel measurement resource is the second channel measurement resource among the K channel measurement resources. Or, i equals 3, i.e., the third channel measurement resource period, and the first channel measurement resource is the third channel measurement resource among the K channel measurement resources. Or, i equals 4, i.e., the fourth channel measurement resource period, and the first channel measurement resource is the fourth channel measurement resource among the K channel measurement resources. Alternatively, i equals 5, which is the 5th channel measurement resource period, and the first channel measurement resource is the 5th channel measurement resource out of K channel measurement resources. The same applies to other channel measurement resource periods. Therefore, in this embodiment, interference measurement resources for multiple channel measurement resources are achieved through interference measurement resources in multiple interference measurement resource periods. This improves the accuracy of interference measurement, and thus improves the accuracy of channel measurement.

[0234] It should be noted that the above implementation simply corresponds the interference measurement resources of the first interference measurement resource cycle to the channel measurement resources of the first channel measurement resource cycle, the interference measurement resources of the second interference measurement resource cycle to the second channel measurement resources of the second channel measurement resource cycle, and so on, with the interference measurement resources of the fifth interference measurement resource cycle corresponding to the first channel measurement resources of the fifth channel measurement resource cycle, and so on. In practical applications, the correspondence between the interference measurement resources of the first interference measurement resource cycle and the channel measurement resources of the channel measurement resource cycle can also be other, and this application does not limit the specific correspondence. For example, the interference measurement resources of the first interference measurement resource cycle correspond to the channel measurement resources of the second channel measurement resource cycle, the interference measurement resources of the second interference measurement resource cycle correspond to the first channel measurement resources of the second channel measurement resource cycle, the interference measurement resources of the third interference measurement resource cycle correspond to the third channel measurement resources of the third channel measurement resource cycle, and the interference measurement resources of the fourth interference measurement resource cycle correspond to the fourth channel measurement resources of the fourth channel measurement resource cycle. The interference measurement resources of the 5th interference measurement resource period correspond to the 2nd channel measurement resource of the 5th channel measurement resource period, the interference measurement resources of the 6th interference measurement resource period correspond to the 1st channel measurement resource of the 6th channel measurement resource period, and so on. It should be noted that the K channel measurement resources can be understood as the channel measurement resources within one channel measurement resource period. Within one channel measurement resource period, the terminal device can perform data transmission in the time domain positions occupied by the K channel measurement resources after the current time domain position.

[0235] The following describes some possible sorting methods for the K channel measurement resources. Other sorting methods are still applicable to this application, and this application does not limit them in any specific way.

[0236] In one possible implementation, the K channel measurement resources are sorted in ascending or descending order of their Channel State Information Reference Signal Resource Indication (CRI) sequence numbers; or, the K channel measurement resources are sorted in ascending or descending order of their resource IDs; or, the K channel measurement resources are sorted in ascending or descending order of their resource IDs configured in the channel measurement resource set; or, the K channel measurement resources are sorted according to the configuration order in which the network devices configure the channel measurement resources.

[0237] In another possible implementation, the K channel measurement resources include Mr channel measurement resources and L channel measurement resources, where L = K - Mr. The Mr channel measurement resources have a higher priority than the L channel measurement resources.

[0238] Optionally, Mr channel measurement resources precede L channel measurement resources. The Mr channel measurement resources are ordered in ascending or descending order of their Channel State Information Reference Signal Resource Indication (CRI) numbers. The L channel measurement resources are ordered in ascending or descending order of their CRI numbers.

[0239] Optionally, Mr channel measurement resources precede L channel measurement resources. The Mr channel measurement resources are sorted in ascending or descending order of their resource IDs. The L channel measurement resources are sorted in ascending or descending order of their resource IDs.

[0240] Optionally, Mr channel measurement resources precede L channel measurement resources. Mr channel measurement resources are ordered according to the configuration order of the network device's channel measurement resources. L channel measurement resources are ordered according to the configuration order of the network device's channel measurement resources.

[0241] 1203. The terminal device sends a CSI to the network device. Correspondingly, the network device receives the CSI from the terminal device.

[0242] Step 1203 is similar to step 803 in the embodiment shown in Figure 8 above. For details, please refer to the relevant description of step 803 in the embodiment shown in Figure 8 above, which will not be repeated here.

[0243] Optionally, the terminal device sends the CSIs corresponding to Mr channel measurement resources to the network device. The CRIs corresponding to the Mr channel measurement resources may not be reported. For the remaining K-Mr channel measurement resources, the terminal device may choose to report some or all of the CSIs corresponding to the remaining K-Mr channel measurement resources.

[0244] Optionally, the embodiment shown in FIG12 further includes steps 1202a to 1202b. Steps 1202a to 1202b may be performed before step 1203.

[0245] 1202a. The terminal device measures K channel measurement resources from the network device during the (i+1)th channel measurement resource period.

[0246] Step 1202a is similar to the aforementioned step 1202. For details, please refer to the relevant introduction of the aforementioned step 1202. It will not be repeated here.

[0247] 1202b. The terminal device measures the second interference measurement resource from the network device during the (i+1)th interference measurement resource cycle.

[0248] The second channel measurement resource is the z-th channel measurement resource among the K channel measurement resources in the (i+1)-th channel measurement resource period. Specifically, when i+1 is greater than or equal to 1 and less than or equal to K, z equals i+1; or, when i+1 is greater than K, z equals the remainder of i+1 and K. That is, z = (i+1) mod K.

[0249] Steps 1202a to 1202b are similar to the aforementioned steps 1201 to 1202. For details, please refer to the relevant introductions of the aforementioned steps 1201 to 1202. They will not be repeated here.

[0250] It should be noted that the above description uses two channel measurement resource periods and two interference measurement resource periods as examples to illustrate the technical solution of this application. In practical applications, terminal equipment and network equipment can perform channel measurements within more channel measurement resource periods and interference measurement resources within more interference measurement resource periods; this application does not impose any specific limitations on these aspects.

[0251] Optionally, the embodiment shown in FIG12 further includes step 1201a. Step 1201a may be performed before step 1202.

[0252] 1201a. The network device sends second configuration information to the terminal device. Correspondingly, the terminal device receives the second configuration information from the network device.

[0253] The second configuration information is used to configure the offset value of the first interference measurement resource. The offset value of the first interference measurement resource is used to determine the time-domain resources occupied by the first interference measurement resource.

[0254] Optionally, the second configuration information is carried in RRC signaling, MAC CE, or DCI.

[0255] Optionally, the offset value of the first interference measurement resource is the offset of the starting time domain position occupied by the first interference measurement resource relative to the starting time domain position occupied by the interference measurement resource in the first interference measurement resource cycle of the terminal device. For example, if the interference measurement resource occupies time slot 1 in the first interference measurement resource cycle of the terminal device, and the first interference measurement resource is the interference measurement resource of the first interference measurement resource cycle, then the offset value of the first interference measurement resource is 0. As another example, if the interference measurement resource occupies time slot 1 in the first interference measurement resource cycle of the terminal device, and the first interference measurement resource is the interference measurement resource of the second interference measurement resource cycle, then the offset value of the first interference measurement resource is 1, which is the first interference measurement resource occupying time slot 2. As yet another example, if the interference measurement resource occupies time slot 1 in the first interference measurement resource cycle of the terminal device, and the first interference measurement resource is the interference measurement resource of the third interference measurement resource cycle, then the offset value of the first interference measurement resource is 2, which is the first interference measurement resource occupying time slot 3. For example, if the interference measurement resource occupies time slot 1 in the first interference measurement resource cycle of the terminal device, and the first interference measurement resource is the interference measurement resource in the second interference measurement resource cycle, then the offset value of the first interference measurement resource is 1, which means that the first interference measurement resource occupies time slot 2.

[0256] It should be noted that the second configuration information described above configures the offset value of the first interference measurement resource. The second configuration information can also be used to configure the offset values ​​of interference measurement resources for other interference measurement resource periods; this application does not limit the specific configuration. For example, the second configuration information can also be used to configure the offset value of the second interference measurement resource.

[0257] Optionally, the embodiment shown in FIG12 further includes step 1201b.

[0258] 1201b. The network device sends third configuration information to the terminal device. Correspondingly, the terminal device receives the third configuration information from the network device.

[0259] Step 1201b is similar to step 801b in the embodiment shown in Figure 8 above. For details, please refer to the relevant description of step 801b in the embodiment shown in Figure 8 above, which will not be repeated here.

[0260] Optionally, the embodiment shown in FIG12 further includes step 1201c.

[0261] 1201c. The network device sends fourth configuration information to the terminal device. Correspondingly, the terminal device receives the fourth configuration information from the network device.

[0262] Step 1201c is similar to step 801c in the embodiment shown in Figure 8 above. For details, please refer to the relevant description of step 801c in the embodiment shown in Figure 8 above, which will not be repeated here.

[0263] It should be noted that the embodiment shown in Figure 12 above is an example of two channel measurement resource periods and two interference measurement resource periods to illustrate the technical solution of this application. The transmission of other channel measurement resource periods and other interference measurement resources is similar and will not be described in detail here.

[0264] It should be noted that in the embodiment shown in Figure 12 above, the time-domain behavior of the channel measurement resource is the same as that of the interference measurement resource. That is, the channel measurement resource is a periodic resource, and the interference measurement resource can also be a periodic resource. In practical applications, the channel measurement resource can be an aperiodic resource, and the interference measurement resource can also be an aperiodic resource. Alternatively, the channel measurement resource can be a semi-persistent resource, and the interference measurement resource can also be a semi-persistent resource; this application does not impose any specific limitations.

[0265] Optionally, the temporal behavior of the channel measurement resource can differ from that of the interference measurement resource. For example, the channel measurement resource may be a periodic resource, while the interference measurement resource may be an aperiodic or semi-persistent resource. In this implementation, step 1202 in the embodiment shown in Figure 12 can be replaced by: the terminal device measuring the first interference measurement resource from the network device. Alternatively, the terminal device measuring the reference signal transmitted by the network device on the first interference measurement resource. The first interference measurement resource is an aperiodic resource. The temporal resource occupied by the first interference measurement resource is correlated with the temporal resource occupied by the m-th channel measurement resource among the K channel measurement resources. The first interference measurement resource is dynamically scheduled by the network device for the terminal device and is used to measure the interference within the cell corresponding to the m-th channel measurement resource of the i-th channel measurement resource period. Step 1202b in the embodiment shown in Figure 12 can be replaced by: the terminal device measuring the second interference measurement resource from the network device. Alternatively, the terminal device measuring the reference signal transmitted by the network device on the second interference measurement resource. The second interference measurement resource is an aperiodic resource. The time-domain resources occupied by the second interference measurement resource are correlated with the time-domain resources occupied by the z-th channel measurement resource out of the K channel measurement resources in the (i+1)-th channel measurement resource period. The second interference measurement resource is dynamically scheduled by the network device for the terminal device and is used to measure interference within the cell corresponding to the z-th channel measurement resource out of the K channel measurement resources in the (i+1)-th channel measurement resource period. This explanation uses interference measurement within the cell corresponding to the corresponding channel measurement resources in two channel measurement resource periods as an example. Interference measurement within the cell corresponding to the corresponding channel measurement resources in other channel measurement resource periods is similar and will not be elaborated further here.

[0266] Figure 14 is a schematic diagram of another embodiment of the measurement and reporting method of this application. Referring to Figure 14, the method includes:

[0267] 1401. The terminal device measures P channel measurement resources and Q channel measurement resources from the network device to obtain P+Q channel measurement results.

[0268] Here, P channel measurement resources and Q channel measurement resources are channel measurement resources within one channel measurement resource period. P is an integer greater than or equal to 1, and Q is an integer greater than or equal to 1. Each of the P channel measurement resources and Q channel measurement resources corresponds to one analog beam, and different channel measurement resources correspond to different analog beams. Different channel measurement resources within the P channel measurement resources and Q channel measurement resources occupy different time-domain resources.

[0269] Specifically, the network device sends P channel measurement resources and Q channel measurement resources to the terminal device. In other words, the network device sends reference signals to the terminal device on the P channel measurement resources and Q channel measurement resources. Correspondingly, the terminal device receives the reference signals on the P channel measurement resources and Q channel measurement resources from the network device. Then, the terminal device measures the P channel measurement resources and Q channel measurement resources. Or, the terminal device measures the reference signals on the P channel measurement resources and Q channel measurement resources. The P+Q channel measurement results include the signal quality of the P+Q channel measurement resources. Optionally, the P+Q channel measurement results include the index of the P+Q channel measurement resources. For example, as shown in Figure 15, the first channel measurement resource period includes P channel measurement resources and Q channel measurement resources. The P channel measurement resources include CMR#0 and CMR#1. The Q channel measurement resources include CMR#2 and CMR#3.

[0270] Optionally, the reference signal carried by the channel measurement resources is a downlink reference signal. Please refer to the relevant introduction above for information on downlink reference signals.

[0271] 1402. The terminal device measures the third interference measurement resource and the fourth interference measurement resource from the network device to obtain the third interference measurement result.

[0272] The time-domain resources occupied by the third interference measurement resource are correlated with those occupied by the second channel measurement resource. Similarly, the time-domain resources occupied by the fourth interference measurement resource are correlated with those occupied by the third channel measurement resource. The third interference measurement resource is an interference measurement resource within one interference measurement resource period, and the fourth interference measurement resource is an interference measurement resource within another interference measurement resource period. For example, as shown in Figure 15, IMR1 is associated with CMR#0, and IMR1 is associated with CMR#2. Both the third and fourth interference measurement resources are NZP CSI-RS resources. In other words, both the third and fourth interference measurement resources are used for interference measurement within the cell.

[0273] Specifically, the network device sends third and fourth interference measurement resources to the terminal device. In other words, the network device sends a reference signal to the terminal device on the third interference measurement resource. Correspondingly, the terminal device receives the third and fourth interference measurement resources from the network device. In other words, the terminal device receives the reference signal sent by the network device on the third and fourth interference measurement resources. Then, the terminal device measures the third and fourth interference measurement resources. Or, the terminal device measures the reference signal on the third and fourth interference measurement resources.

[0274] The correlation between the time-domain resources occupied by the third interference measurement resource and the time-domain resources occupied by the second channel measurement resource is similar to the aforementioned correlation between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource. For details, please refer to the aforementioned related descriptions. The correlation between the time-domain resources occupied by the fourth interference measurement resource and the time-domain resources occupied by the third channel measurement resource is similar to the aforementioned correlation between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource. For details, please refer to the aforementioned related descriptions.

[0275] The following describes some possible implementations of the second channel measurement resources. Other implementations are also applicable to this application, and this application does not limit them.

[0276] First, the second channel measurement resource is the w1-th channel measurement resource out of P channel measurement resources. w1 is an integer greater than or equal to 1 and less than or equal to P. Second, the third channel measurement resource is the w2-th channel measurement resource out of Q channel measurement resources. w2 is an integer greater than or equal to 1 and less than or equal to P.

[0277] The P channel measurement resources are sorted in ascending or descending order of their CRI (Channel Identification Number) numbers. Alternatively, they can be sorted in ascending or descending order of their resource IDs. For example, as shown in Figure 15, the P channel measurement resources include CMR#0 and CMR#1. CMR#0 and CMR#1 are sorted in ascending order of their CRI numbers. The second channel measurement resource is CMR#0, which is the first CMR.

[0278] The Q channel measurement resources are sorted in ascending or descending order of their CRI (Channel Identification Number) numbers. Alternatively, they can be sorted in ascending or descending order of their resource IDs. For example, as shown in Figure 15, the Q channel measurement resources include CMR#2 and CMR#3. CMR#2 and CMR#3 are sorted in ascending order of their CRI numbers. The second channel measurement resource is CMR#2, which is the first CMR.

[0279] Second, the CRI number of the second channel measurement resource is the same as the CRI number of the channel measurement resource with the best signal quality in the first historical channel measurement resources of the terminal device. Alternatively, the resource ID of the second channel measurement resource is the same as the resource ID of the channel measurement resource with the best signal quality in the second historical channel measurement resources of the terminal device.

[0280] The beams corresponding to the P channel measurement resources are the same as the beams corresponding to the first historical channel measurement resources. This means that the first historical channel measurement resources of the terminal device were used to measure the beams corresponding to the first historical channel measurement resources during a past period before or prior to the P channel measurement resources.

[0281] The beams corresponding to the Q channel measurement resources are the same as the beams corresponding to the second historical channel measurement resources. This means that the second historical channel measurement resources of the terminal device were used to measure the beams corresponding to the second historical channel measurement resources in the past period before or prior to the Q channel measurement resources.

[0282] It should be noted that the above implementation method two is merely an example. In practical applications, the CRI number of the second channel measurement resource is the same as the CRI number of the channel measurement resource with signal quality greater than the second threshold in the first historical channel measurement resources of the terminal device. Alternatively, the CRI number of the second channel measurement resource is the same as the CRI number of the channel measurement resource with signal quality greater than or equal to the second threshold in the first historical channel measurement resources of the terminal device. Alternatively, the resource ID of the second channel measurement resource is the same as the resource ID of the channel measurement resource with signal quality greater than the first threshold in the first historical channel measurement resources of the terminal device. Alternatively, the resource ID of the second channel measurement resource is the same as the resource ID of the channel measurement resource with signal quality greater than or equal to the first threshold in the first historical channel measurement resources of the terminal device.

[0283] Third, the second channel measurement resource is a predetermined, pre-configured, or default channel measurement resource associated with the second interference measurement resource. The third channel measurement resource is a predefined, pre-configured, or default channel measurement resource associated with the third interference measurement resource. For example, as shown in Figure 15, IMR0 is associated with CMR#0 by default, and IMR2 is associated with CMR#2 by default.

[0284] Optionally, the interference measurement resource period is shorter than the channel measurement resource period. For example, as shown in Figure 15, the channel measurement resource period is T1, and the interference measurement resource period is T2, where T2 is shorter than T1.

[0285] Optionally, the length of the interference measurement resource period is an integer multiple of the time interval between the starting time domain positions of the first and second channel measurement resources among any two adjacent CRI numbers within the channel measurement resource period. For example, T2 is equal to twice the time interval between the starting time domain positions of CMR#0 and CMR#1.

[0286] Optionally, the length of the interference measurement resource period is the time interval between the starting time domain position of the first channel measurement resource among the K channel measurement resources and the starting time domain position of the first channel measurement resource among the Q channel measurement resources. For example, as shown in Figure 15, the length of the interference measurement resource period is equal to the time interval between the starting time domain position of CMR#0 and the starting time domain position of CMR#2.

[0287] 1403. The terminal device sends a CSI to the network device. Correspondingly, the network device receives the CSI from the terminal device.

[0288] CSI is determined based on the P+Q channel measurement results and the third interference measurement result.

[0289] It should be noted that the descriptions of step 1403 and step 803 in the embodiment shown in Figure 8 above will not be repeated here.

[0290] Optionally, the embodiment shown in FIG14 further includes step 1401a. Step 1401a may be performed before step 1401.

[0291] 1401a. The network device sends the fifth configuration information to the terminal device. Correspondingly, the terminal device receives the fifth configuration information from the network device.

[0292] The fifth configuration information is used to configure the length of the interference measurement resource cycle.

[0293] Steps 1401b and 1401c are similar to steps 801b and 801c in the embodiment shown in Figure 8 above. For details, please refer to the relevant descriptions of steps 801b and 801c in the embodiment shown in Figure 8 above, which will not be repeated here.

[0294] It should be noted that there is no fixed execution order between steps 1401a and 1401b, and this application does not impose any specific restrictions. For example, step 1401a can be executed first, followed by step 1401b; or step 1401b can be executed first, followed by step 1401a; or, depending on the circumstances, steps 1401a and 1401b can be executed simultaneously, and this application does not impose any specific restrictions. Optionally, the fifth configuration information and the third configuration information in step 1401b can be the same configuration information or different configuration information, and this application does not impose any specific restrictions.

[0295] It should be noted that there is no fixed execution order between steps 1401a and 1401c, and this application does not impose any restrictions on this order. For example, step 1401a can be executed first, followed by step 1401c; or step 1401c can be executed first, followed by step 1401a; or, depending on the circumstances, steps 1401a and 1401c can be executed simultaneously, and this application does not impose any restrictions on this order. Optionally, the fifth configuration information and the fourth configuration information in step 1401c can be the same configuration information or different configuration information, and this application does not impose any restrictions on this order.

[0296] It should be noted that there is no fixed execution order among steps 1401a, 1401b, and 1401c, and this application does not impose any restrictions on the specific execution order. For example, step 1401a can be executed first, then step 1401b, and finally step 1401c.

[0297] It should be noted that the embodiment shown in Figure 14 above is an example of channel measurement and interference measurement within a channel measurement resource period to illustrate the technical solution of this application. The channel measurement and interference measurement for other channel measurement resource periods are similar and will not be described in detail here.

[0298] It should be noted that the embodiment shown in Figure 14 above illustrates the technical solution of this application by measuring interference resources within one channel measurement resource period, using interference measurement resources for two interference measurement resource periods as an example. In practical applications, interference measurement resources within one channel measurement resource period can also be achieved using interference measurement resources for more interference measurement resource periods; this application does not impose any specific limitations on this.

[0299] Figure 16 is a schematic diagram of another embodiment of the communication method of this application. Referring to Figure 16, the method includes:

[0300] 1601. The terminal device measures K channel measurement resources from the network device and obtains K channel measurement results.

[0301] Step 1601 is similar to step 801 in the embodiment shown in Figure 8 above. For details, please refer to the relevant description of step 801 in the embodiment shown in Figure 8 above, which will not be repeated here.

[0302] 1602. The terminal device measures at least two interference measurement resources from the network device to obtain the fifth interference measurement result.

[0303] In this configuration, each of the at least two interference measurement resources is associated with one of the K channel measurement resources, and different interference measurement resources are associated with different channel measurement resources. The time-domain resources occupied by an interference measurement resource are associated with the time-domain resources occupied by the channel measurement resources associated with it. The association between the time-domain resources occupied by each interference measurement resource and the time-domain resources occupied by the channel measurement resources associated with it is similar to the association between the first channel measurement resource and the first interference measurement resource in the embodiment shown in Figure 8 above; please refer to the relevant description above for details, which will not be repeated here. For example, as shown in Figure 17A, the at least two interference measurement resources include IMR#0 and IMR#1, with IMR#0 associated with CMR#0 and IMR#1 associated with CMR#2. As another example, as shown in Figure 17B, the at least two interference measurement resources include IMR#0, IMR#1, and IMR#2. IMR#0 is associated with CMR#0, IMR#1 with CMR#1, and IMR#2 with CMR#2. For example, as shown in Figure 17C, the at least two interference measurement resources include IMR#0, IMR#1, IMR#2, and IMR#3. IMR#0 is associated with CMR#0, IMR#1 with CMR#1, IMR#2 with CMR#2, and IMR#3 with CMR#3.

[0304] Specifically, the network device sends at least two interference measurement resources to the terminal device. In other words, the network device sends reference signals to the terminal device on at least two interference measurement resources. Correspondingly, the terminal device receives the reference signals sent by the network device on the at least two interference measurement resources. Then, the terminal device measures the at least two interference measurement resources. Or, the terminal device measures the reference signals on the at least two interference measurement resources.

[0305] Optionally, at least two interference measurement resources comprise K interference measurement resources. These K interference measurement resources are associated one-to-one with the K channel measurement resources. For example, as shown in Figure 17C, the K channel measurement resources include CMR#0, CMR#1, CMR#2, and CMR#3. The at least two interference measurement resources include IMR#0, IMR#1, IMR#2, and IMR#3. IMR#0 is associated with CMR#0, IMR#1 with CMR#1, IMR#2 with CMR#2, and IMR#3 with CMR#3.

[0306] Optionally, the time-domain behavior of the K channel measurement resources may be the same as or different from the time-domain behavior of at least two interference measurement resources. For details regarding time-domain behavior, please refer to the relevant description in the embodiment shown in Figure 8 above.

[0307] The following describes some possible implementations of the channel measurement resources associated with at least two interference measurement resources. Other implementations are still applicable to this application, and this application does not limit them.

[0308] 1. The channel measurement resources associated with at least two interference measurement resources include A channel measurement resources. These A channel measurement resources are either the first A channel measurement resources out of K channel measurement resources, or the last A channel measurement resources out of K channel measurement resources. A is an integer greater than 1 and less than or equal to K.

[0309] The K channel measurement resources are sorted in ascending or descending order of their CRI (Channel Identification Number) sequence numbers. Alternatively, they can be sorted in ascending or descending order of their resource IDs. Or, they can be sorted in ascending or descending order of their resource IDs within the channel measurement resource set. Alternatively, they can be sorted according to the configuration order in which the network device configures the channel measurement resources. Optionally, the network device can configure these K channel measurement resources via RRC signaling, MAC CE, or DCI. For example, as shown in Figure 17C, the CSI sequence numbers corresponding to CMR#0, CMR#1, CMR#2, and CMR#3 can be CRI#2, CRI#4, CRI#6, and CRI#8, respectively. CMR#0, CMR#1, CMR#2, and CMR#3 are sorted in ascending order of their CRI sequence numbers. IMR#0 is associated with CMR#0, IMR#1 is associated with CMR#1, IMR#2 is associated with CMR#2, and IMR#3 is associated with CMR#3.

[0310] 2. The channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources. The CRI numbers of these A channel measurement resources are the same as the CRI numbers of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than the third threshold. Alternatively, the CRI numbers of these A channel measurement resources are the same as the CRI numbers of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than or equal to the third threshold. Alternatively, the resource IDs of these A channel measurement resources are the same as the resource IDs of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than or equal to the third threshold. Alternatively, the resource IDs of these A channel measurement resources are the same as the resource IDs of channel measurement resources in the historical channel measurement resources of the terminal device whose signal quality is greater than or equal to the third threshold.

[0311] K channel measurement resources correspond to multiple beams, and historical channel measurement resources also correspond to these multiple beams. It can be understood that historical channel measurement resources of the terminal device are channel measurement resources used to measure multiple beams in the past period before or prior to the K channel measurement resources.

[0312] 3. The channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources. These A channel measurement resources are either the first A channel measurement resources or the last A channel measurement resources out of Mr channel measurement resources.

[0313] Among them, Mr channel measurement resources are channel measurement resources configured by the network device with a higher priority than the channel measurement resources other than Mr channel measurement resources among the K channel measurement resources.

[0314] Here, Mr channel measurement resources are sorted in ascending or descending order of their CRI numbers. Alternatively, Mr channel measurement resources are sorted in ascending or descending order of their resource IDs. Or, Mr channel measurement resources are sorted according to the configuration order of the network devices configuring the channel measurement resources. Mr is a quantity greater than or equal to 1 and less than K. For example, as shown in Figure 18A, K channel measurement resources include CMR#0, CMR#1, CMR#2, and CMR#3. The CSI numbers corresponding to CMR#0, CMR#1, CMR#2, and CMR#3 can be CRI#2, CRI#4, CRI#6, and CRI#8, respectively. CMR#0, CMR#1, CMR#2, and CMR#3 are sorted in ascending order of their CRI numbers. Mr channel measurement resources include CMR#0 and CMR#1, and these at least two interference measurement resources include IMR#0 and IMR#1. IMR#0 is associated with CMR#0, and IMR#1 is associated with CMR#1.

[0315] It should be noted that when Mr is less than A, each of the at least two interference measurement resources, excluding the interference measurement resources associated with Mr channel measurement resources, is associated with one of the K-Mr channel measurement resources. Different interference measurement resources are associated with different channel measurement resources. The K-Mr channel measurement resources are the channel measurement resources other than the Mr channel measurement resources among the K channel measurement resources. Optionally, the K-Mr channel measurement resources are sorted in ascending or descending order of their CRI numbers. Alternatively, the K-Mr channel measurement resources are sorted in ascending or descending order of their resource IDs. For example, as shown in Figure 18B, the K channel measurement resources include CMR#0, CMR#1, CMR#2, and CMR#3. The CSI numbers corresponding to CMR#0, CMR#1, CMR#2, and CMR#3 can be CRI#2, CRI#4, CRI#6, and CRI#8, respectively. CMR#0, CMR#1, CMR#2, and CMR#3 are ordered in ascending order of their CRI numbers. Mr channel measurement resources include CMR#0 and CMR#1, and the at least two interference measurement resources include IMR#0, IMR#1, and IMR#2. IMR#0 is associated with CMR#0, IMR#1 with CMR#1, and IMR#2 with CMR#2. For example, as shown in Figure 18C, K channel measurement resources include CMR#0, CMR#1, CMR#2, and CMR#3. The CSI numbers corresponding to CMR#0, CMR#1, CMR#2, and CMR#3 can be CRI#2, CRI#4, CRI#6, and CRI#8, respectively. CMR#0, CMR#1, CMR#2, and CMR#3 are ordered in ascending order of their CRI numbers. The Mr channel measurement resources include CMR#0 and CMR#1, and the at least two interference measurement resources include IMR#0, IMR#1, IMR#2, and IMR#3. IMR#0 is associated with CMR#0, IMR#1 with CMR#1, IMR#2 with CMR#2, and IMR#3 with CMR#3.

[0316] IV. The channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources. These A channel measurement resources are predefined, preconfigured, or default channel measurement resources associated with the at least two interference measurement resources. For example, as shown in Figure 17A, by default, IMR#0 is associated with CMR#0, and IMR#1 is associated with CMR#2.

[0317] Optionally, the embodiment shown in FIG16 further includes step 1601a. ​​Step 1601a may be performed before step 1602.

[0318] 1601a. ​​The network device sends the sixth configuration information to the terminal device. Correspondingly, the terminal device receives the sixth configuration information from the network device.

[0319] The sixth configuration information is used to configure the time domain resources occupied by the channel measurement resources associated with each of the at least two interference measurement resources, and to establish an association between the time domain resources occupied by the interference measurement resources.

[0320] The implementation method for establishing the correlation between the time-domain resources occupied by each interference measurement resource and the time-domain resources occupied by the associated channel measurement resource is similar to the implementation method for establishing the correlation between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource in step 801a of the embodiment shown in Figure 8 above. For details, please refer to the relevant introduction above, which will not be repeated here.

[0321] Optionally, the embodiment shown in FIG16 further includes step 1601b. Step 1601b may be performed before step 1601.

[0322] 1601b. The network device sends third configuration information to the terminal device. Correspondingly, the terminal device receives the third configuration information from the network device.

[0323] Step 1601b is similar to step 801b in the embodiment shown in Figure 8 above. For details, please refer to the relevant description of step 801b in the embodiment shown in Figure 8 above, which will not be repeated here.

[0324] Optionally, the embodiment shown in FIG16 further includes step 1601c. Step 1601c may be performed before step 1602.

[0325] 1601c: The network device sends the seventh configuration information to the terminal device. Correspondingly, the terminal device receives the seventh configuration information from the network device.

[0326] The seventh configuration information is used to configure at least two interference measurement resources. For example, the seventh configuration information includes at least one of the following: the time-frequency resource locations of at least two interference measurement resources, or the periods of at least two interference measurement resources.

[0327] 1603. The terminal device sends a CSI to the network device. Correspondingly, the network device receives the CSI from the terminal device.

[0328] The CSI is determined based on M channel measurement resources out of K channel measurement resource results and the fifth interference measurement result. M is less than or equal to K. That is, the M channel measurement resources can be a subset of the K channel measurement resources. It is understood that, optionally, the M channel measurement resources include channel measurement resources associated with at least two interference measurement resources.

[0329] Step 1603 is similar to step 803 in the embodiment shown in Figure 8 above. For details, please refer to some related descriptions of step 803 in the embodiment shown in Figure 8 above, which will not be repeated here.

[0330] It should be noted that the network devices in different steps of the above embodiments can be the same network device or different network devices. For example, the network device in some steps can be a CU, and the network device in some steps can be a DU.

[0331] The following is a schematic diagram of a communication device according to an embodiment of this application. Referring to FIG19, the communication device can be used to execute the process performed by the terminal device in the embodiments shown in FIG8, FIG12, FIG14 and FIG16. For details, please refer to the relevant description in the foregoing method embodiments.

[0332] The communication device 1900 includes a transceiver module 1901 and a processing module 1902.

[0333] The processing module 1902 is used for data processing. The transceiver module 1901 can implement the corresponding communication functions. The transceiver module 1901 can also be called a communication interface or a communication module.

[0334] Optionally, the communication device 1900 may further include a storage module, which can be used to store program code, program instructions and / or data. The processing module 1902 can read the instructions and / or data in the storage module so that the communication device 1900 can implement the aforementioned method embodiments.

[0335] The communication device 1900 can be used to perform the actions performed by the terminal device in the embodiments shown in Figures 8, 12, 14, and 16. For example, it can be the terminal device itself, a communication module within the terminal device, or a circuit or chip within the terminal device responsible for communication functions. The communication device 1900 can be the terminal device or a component configurable within the terminal device. The processing module 1902 is used to perform processing-related operations on the terminal device side in the embodiments shown in Figures 8, 12, 14, and 16. The transceiver module 1901 is used to perform receiving-related operations on the terminal device side in the embodiments shown in Figures 8, 12, 14, and 16.

[0336] Optionally, the transceiver module 1901 may include a sending module and a receiving module. The sending module is used to perform the sending operations in the embodiments shown in Figures 8, 12, 14, and 16. The receiving module is used to perform the receiving operations in the embodiments shown in Figures 8, 12, 14, and 16.

[0337] It should be noted that the communication device 1900 may include a transmitting module but not a receiving module. Alternatively, the communication device 1900 may include a receiving module but not a transmitting module. Specifically, it depends on whether the above-described scheme performed by the communication device 1900 includes both transmitting and receiving actions. For example, the communication device 1900 is used to perform the actions performed by the terminal device in the embodiments shown in Figures 8, 12, 14, and 16. For details, please refer to the relevant descriptions in the embodiments shown in Figures 8, 12, 14, and 16; these will not be elaborated upon here.

[0338] For example, the communication device 1900 is used to execute the following scheme:

[0339] The processing module 1902 is used to measure K channel measurement resources from the network device to obtain K channel measurement results, where K is an integer greater than or equal to 2; measure a first interference measurement resource from the network device to obtain a first interference measurement result, wherein the time domain resources occupied by the first interference measurement resource are related to the time domain resources occupied by the first channel measurement resource, and the first channel measurement resource is one of the multiple channel measurement resources;

[0340] The transceiver module 1901 is used to report CSI to the network device. CSI is determined based on M channel measurement results out of K channel measurement results and the first interference measurement result, where M is less than or equal to K.

[0341] In one possible implementation, the first interference measurement resource is an NZP CSI-RS resource used for interference measurement.

[0342] In another possible implementation, the time-domain resources occupied by the first interference measurement resource are related to the time-domain resources occupied by the first channel measurement resource, including: the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource partially or completely overlap; or, the time interval between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource is no greater than a first duration; or, the time interval between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource is a second duration.

[0343] In another possible implementation, the first channel measurement resource is the nth channel measurement resource among K channel measurement resources; where n is an integer greater than or equal to 1 and less than or equal to K, and the K channel measurement resources are sorted in ascending or descending order of their CRI numbers; or, the K channel measurement resources are sorted in ascending or descending order of their resource IDs.

[0344] In another possible implementation, the CRI number of the first channel measurement resource is the same as the CRI number of the channel measurement resource with the best signal quality in the historical channel measurement resources of the terminal device; or, the resource ID of the first channel measurement resource is the same as the resource ID of the channel measurement resource with the best signal quality in the historical channel measurement resources of the terminal device.

[0345] In another possible implementation, the first channel measurement resource is the S-th channel measurement resource out of Mr channel measurement resources. The Mr channel measurement resources are channel measurement resources configured by the network device with a priority higher than the channel measurement resources other than the Mr channel measurement resources out of K channel measurement resources. Mr is a number greater than or equal to 1 and less than K, and S is an integer greater than or equal to 1 and less than or equal to Mr. The Mr channel measurement resources are sorted in ascending or descending order of their CRI sequence numbers; or, the Mr channel measurement resources are sorted in ascending or descending order of their resource IDs.

[0346] In another possible implementation, the first channel measurement resource is a predefined, preconfigured, or default channel measurement resource associated with the first interference measurement resource.

[0347] In another possible implementation, the transceiver module 1901 is further configured to: receive first configuration information from the network device, wherein the first configuration information is used to configure the time domain resources occupied by the first channel measurement resources and the time domain resources occupied by the first interference measurement resources to have an association relationship.

[0348] For example, the communication device 1900 is used to execute the following scheme:

[0349] Processing module 1902 is used to measure P channel measurement resources and Q channel measurement resources from network devices to obtain P+Q channel measurement results; where P is an integer greater than or equal to 1, and Q are integers greater than or equal to 1; the terminal device measures the third interference measurement resources and the fourth interference measurement resources from network devices to obtain the third interference measurement result; the time domain resources occupied by the third interference measurement resources are related to the time domain resources occupied by the second channel measurement resources; the time domain resources occupied by the fourth interference measurement resources are related to the time domain resources occupied by the third channel measurement resources; the second channel measurement resource is one of the P channel measurement resources, and the third channel measurement resource is one of the Q channel measurement resources;

[0350] The transceiver module 1901 is used to send a CSI to the network device, which is determined based on P+Q channel measurement results and a third interference measurement result. Optionally, the P channel measurement resources and Q channel measurement resources are channel measurement resources within a channel measurement resource period.

[0351] For example, the communication device 1900 is used to execute the following scheme:

[0352] Processing module 1902 is used to measure K channel measurement resources from network devices to obtain K channel measurement results, where K is an integer greater than or equal to 2; and to measure at least two interference measurement resources from network devices to obtain a fifth interference measurement result; wherein each of the at least two interference measurement resources is associated with one of the K channel measurement resources, and different interference measurement resources are associated with different channel measurement resources; the time domain resources occupied by each interference measurement resource are related to the time domain resources occupied by the channel measurement resources associated with that interference measurement resource;

[0353] The transceiver module 1901 is used to report CSI to the network device. The CSI is determined based on M channel measurement resources out of the K channel measurement resources and the fifth interference measurement result, where M is less than or equal to K.

[0354] In one possible implementation, at least two interference measurement resources are NZP CSI-RS resources used for interference measurement. In other words, at least two interference measurement resources are NZP CSI-RS resources used for intra-cell interference measurement.

[0355] In another possible implementation, the time-domain resources occupied by each interference measurement resource are associated with the time-domain resources occupied by the channel measurement resources associated with that interference measurement resource, including:

[0356] The time-domain resources occupied by the interference measurement resources partially or completely overlap with the time-domain resources occupied by the channel measurement resources; or,

[0357] The time interval between the time domain resources occupied by the interference measurement resource and the time domain resources occupied by the interference measurement resource is not greater than the first duration; or,

[0358] The time interval between the time domain resources occupied by the interference measurement resource and the time domain resources occupied by the interference measurement resource is the second duration.

[0359] In another possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources; the A channel measurement resources are either the first A channel measurement resources out of K channel measurement resources, or the last A channel measurement resources out of K channel measurement resources, where A is an integer greater than 1 and less than or equal to K; the K channel measurement resources are sorted in ascending or descending order of their CRI numbers; or, the K channel measurement resources are sorted in ascending or descending order of their resource IDs.

[0360] In another possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources. The CRI numbers of these A channel measurement resources are the same as the CRI numbers of channel measurement resources in the terminal device's historical channel measurement resources where the signal quality is greater than a third threshold. Alternatively, the CRI numbers of these A channel measurement resources are the same as the CRI numbers of channel measurement resources in the terminal device's historical channel measurement resources where the signal quality is greater than or equal to the third threshold. Alternatively, the resource IDs of these A channel measurement resources are the same as the resource IDs of channel measurement resources in the terminal device's historical channel measurement resources where the signal quality is greater than or equal to the third threshold. Alternatively, the resource IDs of these A channel measurement resources are the same as the resource IDs of channel measurement resources in the terminal device's historical channel measurement resources where the signal quality is greater than or equal to the third threshold.

[0361] In another possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources. These A channel measurement resources are either the first A or the last A channel measurement resources out of Mr channel measurement resources. Specifically, Mr channel measurement resources are those configured by the network device with a higher priority than the channel measurement resources other than Mr channel measurement resources among the K channel measurement resources; Mr is a number greater than or equal to 1 and less than K; Mr channel measurement resources are sorted in ascending or descending order of their CRI (Category I) numbers; or, Mr channel measurement resources are sorted in ascending or descending order of their resource IDs; or, Mr channel measurement resources are sorted according to the configuration order of the channel measurement resources configured by the network device.

[0362] In another possible implementation, the channel measurement resources associated with the at least two interference measurement resources include A channel measurement resources; the A channel measurement resources are predefined, preconfigured, or default channel measurement resources associated with the at least two interference measurement resources.

[0363] In another possible implementation, the transceiver module 1901 is further configured to: receive sixth configuration information from the network device. The sixth configuration information is used to configure an association between the time-domain resources occupied by the channel measurement resources associated with each of the at least two interference measurement resources and the time-domain resources occupied by the interference measurement resources.

[0364] For other implementation methods, please refer to the relevant descriptions of the embodiments shown in Figures 8, 12, 14 and 16 above, which will not be repeated here.

[0365] It should be understood that the specific procedures for each module to perform the above-mentioned corresponding processes have been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0366] Optionally, when the communication device 1900 is a terminal device or a communication module within a terminal device, the processing module 1902 in the above embodiments can be implemented by at least one processor or processor-related circuitry. Specifically, the processor may include a modem chip, or a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The transceiver module 1901 can be implemented by a transceiver or transceiver-related circuitry. The transceiver module 1401 may also be referred to as a communication module or communication interface. The storage module can be implemented using at least one memory.

[0367] Optionally, when the communication device 1900 is a circuit or chip in a terminal device responsible for communication functions, such as a modem chip or a SoC chip or SIP chip containing a modem core, the function of the processing module 1902 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processing cores. The function of the transceiver module 1901 can be implemented by the interface circuit or data transceiver circuit on the aforementioned chip.

[0368] This application also provides a communication device 2000. Referring to FIG20, the communication device 2000 includes a processor 2010 coupled to a memory 2020. The memory 2020 stores computer programs or instructions and / or data. The processor 2010 executes the computer programs or instructions and / or data stored in the memory 2020, causing the methods in the above method embodiments to be executed. The communication device 2000 is used to implement the operations performed by a terminal device or network device in the above method embodiments.

[0369] Optionally, the communication device 2000 may include one or more processors 2010.

[0370] Optionally, as shown in Figure 20, the communication device 2000 may also include a memory 2020.

[0371] Optionally, the communication device 2000 may include one or more memory 2020.

[0372] Optionally, the memory 2020 can be integrated with the processor 2010, or it can be set up separately.

[0373] Optionally, as shown in Figure 20, the communication device 2000 may further include a transceiver 2030 for receiving and / or transmitting signals. For example, the processor 2010 is used to control the transceiver 2030 to receive and / or transmit signals.

[0374] This application also provides a communication device 2100, which can be a terminal device, a processor in the terminal device, or a chip. The communication device 2100 can be used to perform the operations performed by the terminal device in the above method embodiments.

[0375] When the communication device 2100 is a terminal device, Figure 21 shows a simplified structural diagram of the terminal device. As shown in Figure 21, the terminal device includes a processor, a memory, and a transceiver. The memory can store computer program code, and the transceiver includes a transmitter 2131, a receiver 2132, radio frequency circuitry (not shown in the figure), an antenna 2133, and input / output devices (not shown in the figure).

[0376] The processor is mainly used to process communication protocols and communication data; control terminal devices; execute software programs; and process data from software programs.

[0377] Memory is mainly used to store software programs and data.

[0378] Radio frequency (RF) circuits are mainly used for the conversion between baseband signals and RF signals, as well as for the processing of RF signals.

[0379] Antennas are primarily used for transmitting and receiving radio frequency signals in the form of electromagnetic waves.

[0380] Input / output devices can include touchscreens, displays, or keyboards. They are primarily used to receive user input and output data to the user. It should be noted that some types of terminal devices may not have input / output devices.

[0381] When data needs to be transmitted, the processor performs baseband processing on the data to be transmitted and outputs a baseband signal to the radio frequency (RF) circuit. The RF circuit then processes the baseband signal and transmits it outwards as electromagnetic waves via an antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna. The RF circuit converts the RF signal back into a baseband signal and outputs it to the processor. The processor converts the baseband signal back into data and processes the data. For ease of explanation, Figure 21 only shows one memory, processor, and transceiver. In actual terminal device products, there may be one or more processors and one or more memories. Memory can also be called storage medium or storage device, etc. Memory can be independent of the processor or integrated with the processor; this embodiment does not limit this.

[0382] In this embodiment, the antenna and radio frequency circuit with transceiver function can be regarded as the transceiver module of the terminal device, and the processor with processing function can be regarded as the processing module of the terminal device.

[0383] As shown in Figure 21, the terminal device includes a processor 2110, a memory 2120, and a transceiver 2130. The processor 2110 can also be referred to as a processing unit, processing board, processing module, or processing device, etc. The transceiver 2130 can also be referred to as a transceiver unit, transceiver, or transceiver device, etc.

[0384] Optionally, the device in transceiver 2130 used to implement the receiving function can be considered a receiving module, and the device in transceiver 2130 used to implement the transmitting function can be considered a transmitting module. That is, transceiver 2130 includes a receiver and a transmitter. A transceiver may also be called a transceiver unit, transceiver module, or transceiver circuit, etc. A receiver may also be called a receiver unit, receiving module, or receiving circuit, etc. A transmitter may also be called a transmitter, transmitting module, or transmitting circuit, etc.

[0385] Processor 2110 is used to execute the processing actions on the terminal device side in the embodiments shown in Figures 8, 12, 14 and 16. Transceiver 2130 is used to execute the sending and receiving actions on the terminal device side in the embodiments shown in Figures 8, 12, 14 and 16.

[0386] It should be understood that Figure 21 is merely an example and not a limitation, and the terminal device described above, including the transceiver module and the processing module, may not depend on the structure shown in Figures 19, 20 or 21.

[0387] When the communication device 2100 is a chip, the chip includes a processor and a transceiver. The processor can be a processing module integrated on the chip, a microprocessor, or an integrated circuit. The transceiver can be an input / output circuit or a communication interface. In the above method embodiments, the sending operation of the terminal device can be understood as the output of the chip, and the receiving operation of the terminal device in the above method embodiments can be understood as the input of the chip.

[0388] Optionally, the communication device 2100 may also include a memory, which may be a memory built into the chip or a memory connected to the chip.

[0389] This application also provides a computer-readable storage medium having stored thereon a computer program or instructions for implementing the methods executed by a terminal device or a network device in the above method embodiments.

[0390] For example, when the computer program or instructions are executed by the computer, the computer can implement the method executed by the terminal device or network device in the above method embodiments.

[0391] This application also provides a computer program product, including a computer program or instructions, which, when executed by a computer, cause the computer to perform the method executed by the terminal device or network device in the above method embodiments.

[0392] This application also provides a communication system, which includes a terminal device and a network device. The terminal device is used to perform some or all of the operations performed by the terminal device in the embodiments shown in Figures 8, 12, 14 and 16 above, and the network device is used to perform some or all of the operations performed by the network device in the embodiments shown in Figures 8, 12, 14 and 16 above.

[0393] This application also provides a chip device including a processor for calling computer programs or computer instructions stored in the memory, so that the processor executes the methods provided in the embodiments shown in Figures 8, 12, 14 and 16 above.

[0394] In one possible implementation, the input of the chip device corresponds to the receiving operation in any one of the embodiments shown in Figures 8, 12, 14 and 16, and the output of the chip device corresponds to the sending operation in any one of the embodiments shown in Figures 8, 12, 14 and 16.

[0395] Optionally, the processor is coupled to the memory via an interface.

[0396] Optionally, the chip device may also include a memory that stores computer programs or computer instructions.

[0397] The processor mentioned above can be a general-purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of a program for controlling the method provided in any of the embodiments shown in Figures 8, 12, 14, and 16. The memory mentioned above can be read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions, such as random access memory (RAM).

[0398] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the explanations and beneficial effects of the relevant contents in any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, and will not be repeated here.

[0399] 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 an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0400] 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 embodiment according to actual needs.

[0401] Furthermore, 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. The integrated unit can be implemented in hardware or as a software functional unit.

[0402] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essential contribution of the technical solution of this application, or all or part 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, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0403] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A measurement and reporting method, characterized in that, The method includes: The reference signals transmitted by the measurement network device on K channel measurement resources are used to obtain K channel measurement results, where K is an integer greater than or equal to 2; The reference signal transmitted by the network device on the first interference measurement resource is measured to obtain the first interference measurement result. The time domain resources occupied by the first interference measurement resource are related to the time domain resources occupied by the first channel measurement resource. The first channel measurement resource is one of the multiple channel measurement resources. The network device reports Channel State Information (CSI), which is determined based on M channel measurement results out of the K channel measurement results and the first interference measurement result, wherein M is less than or equal to K.

2. The method according to claim 1, characterized in that, The first interference measurement resource is a non-zero power channel state information reference signal (NZP CSI-RS) resource used for interference measurement.

3. The method according to claim 1 or 2, characterized in that, The time-domain resources occupied by the first interference measurement resource are correlated with the time-domain resources occupied by the first channel measurement resource, including: The time-domain resources occupied by the first interference measurement resource partially or completely overlap with the time-domain resources occupied by the first channel measurement resource; or, The time interval between the time-domain resources occupied by the first interference measurement resource and the time-domain resources occupied by the first channel measurement resource is not greater than the first duration; or, The time interval between the time domain resources occupied by the first interference measurement resource and the time domain resources occupied by the first channel measurement resource is the second duration.

4. The method according to any one of claims 1 to 3, characterized in that, The first channel measurement resource is the nth channel measurement resource among the K channel measurement resources; wherein the K channel measurement resources are sorted in ascending or descending order of their Channel State Information Reference Signal Resource Indicator (CRI) sequence numbers; or, the K channel measurement resources are sorted in ascending or descending order of their Resource IDs; where n is an integer greater than or equal to 1 and less than or equal to K; or... The CRI number of the first channel measurement resource is the same as the CRI number of the channel measurement resource with the best signal quality in the historical channel measurement resources of the terminal device; or... The resource ID of the first channel measurement resource is the same as the resource ID of the channel measurement resource with the best signal quality among the historical channel measurement resources of the terminal device; or... The first channel measurement resource is the S-th channel measurement resource out of Mr channel measurement resources. The Mr-th channel measurement resource is the channel measurement resource among the K channel measurement resources with a higher priority than the K-Mr channel measurement resources. The K-Mr channel measurement resources are the channel measurement resources among the K channel measurement resources excluding the Mr-th channel measurement resources. Mr is an integer greater than or equal to 1 and less than K, and S is an integer greater than or equal to 1 and less than or equal to Mr. The Mr-th channel measurement resources are sorted in ascending or descending order of their CRI (Channel Identification Number) sequence number; or, the Mr-th channel measurement resources are sorted in ascending or descending order of their resource ID; or... The first channel measurement resource is a predefined, preconfigured, or default channel measurement resource associated with the first interference measurement resource.

5. The method according to any one of claims 1 to 3, characterized in that, The K channel measurement resources are the channel measurement resources in the i-th channel measurement resource period of the terminal device, and the first interference measurement resource is the interference measurement resource in the i-th interference measurement resource period of the terminal device, where i is an integer greater than or equal to 1; The first channel measurement resource is the m-th channel measurement resource among the K channel measurement resources, wherein when i is greater than or equal to 1 and less than or equal to K, m is equal to i; Alternatively, when i is greater than K, m is equal to the remainder of i and K.

6. The method according to claim 5, characterized in that, The K channel measurement resources are sorted in ascending or descending order of their Channel State Information Reference Signal Resource Indicator (CRI) serial numbers; or, the K channel measurement resources are sorted in ascending or descending order of their Resource IDs. or, The K channel measurement resources include Mr channel measurement resources and L channel measurement resources, where L = K - Mr. The Mr channel measurement resources have a higher priority than the L channel measurement resources, and the Mr channel measurement resources precede the L channel measurement resources. Mr is an integer greater than or equal to 1 and less than K. The Mr channel measurement resources are sorted in ascending or descending order of their Channel State Information Reference Signal Resource Indicator (CRI) sequence numbers, and the L channel measurement resources are sorted in ascending or descending order of their CRI sequence numbers. Alternatively, the Mr channel measurement resources are sorted in ascending or descending order of their resource IDs, and the L channel measurement resources are sorted in ascending or descending order of their resource IDs.

7. The method according to claim 5 or 6, characterized in that, The method further includes: The system receives first configuration information from the network device. The first configuration information is used to configure the offset value of the first interference measurement resource. The offset value of the first interference measurement resource is used to determine the time domain resources occupied by the first interference measurement resource.

8. The method according to claim 7, characterized in that, The offset value of the first interference measurement resource is the offset of the starting time domain position occupied by the first interference measurement resource relative to the starting time domain position occupied by the interference measurement resource in the first interference measurement resource cycle of the terminal device.

9. The method according to any one of claims 5 to 8, characterized in that, The method further includes: The reference signals transmitted by the network device on K channel measurement resources in the (i+1)th channel measurement resource period are measured to obtain K channel measurement results; The reference signal transmitted by the network device on the second interference measurement resource is measured to obtain the second interference measurement result. The time domain resources occupied by the second interference measurement resource are related to the time domain resources occupied by the second channel measurement resource. The second channel measurement resource is one of the K channel measurement resources in the (i+1)th channel measurement resource period. Wherein, the second interference measurement result is the interference measurement resource in the (i+1)th interference measurement resource period of the terminal device; the second channel measurement resource is the z-th channel measurement resource among the K channel measurement resources in the (i+1)th channel measurement resource period, wherein when i+1 is greater than or equal to 1 and less than or equal to K, z is equal to i+1; or, when i+1 is greater than K, z is equal to the remainder of i+1 and K. The CSI is also determined based on some or all of the K channel measurement resources and the results of the second interference measurement.

10. The method according to any one of claims 1 to 9, characterized in that, The method further includes: The system receives second configuration information from the network device, the second configuration information being used to configure an association between the time-domain resources occupied by the first channel measurement resource and the time-domain resources occupied by the first interference measurement resource.

11. A communication device, characterized in that, The communication device includes a transceiver module and a processing module; The transceiver module is used to perform the transceiver operation of the method as described in any one of claims 1 to 10, and the processing module is used to perform the processing operation of the method as described in any one of claims 1 to 10.

12. A communication device, characterized in that, The communication device includes a processor for executing a computer program or computer instructions stored in a memory to perform the method as described in any one of claims 1 to 10.

13. A computer-readable storage medium, characterized in that, It stores a computer program or instructions thereon, which, when executed by a communication device, cause the communication device to perform the method as described in any one of claims 1 to 10.

14. A computer program product, characterized in that, It includes a computer program or instructions that, when run on a computer, cause the computer to perform the method as described in any one of claims 1 to 10.

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