Communication method and apparatus

Abstract

The embodiment of the present invention discloses a communication method and a communication device. The method includes the steps of: receiving first configuration information from a radio access network device (401), the first configuration information includes a plurality of channel measurement resources, and the plurality of channel measurement resources correspond to two groups of channel measurement resources; performing channel measurement based on the plurality of channel measurement resources to obtain a first measurement result (402); and sending the first measurement result to the radio access network device (403), the first measurement result includes a joint channel measurement result, the joint channel measurement result being a channel measurement result of a first resource pair, the first resource pair includes one or more resource pairs including two channel measurement resources, the two channel measurement resources respectively belong to the two groups of channel measurement resources, and the joint channel measurement result includes information about the first resource pair. In the embodiment of the present invention, the case where the plurality of channel measurement resources use different channels simultaneously is taken into account in the channel measurement process, so that the accuracy of the channel measurement can be improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to communication methods and apparatuses.

Background Art

[0002] This application claims the priority of Chinese Patent Application No. 202110363822.6, titled "COMMUNICATION METHOD AND APPARATUS", filed with the China National Intellectual Property Administration on April 2, 2021, which is incorporated herein by reference in its entirety.

[0003] In wireless communication, before the transmitting end sends data to the receiving end, the receiving end needs to first perform channel measurement and send the channel measurement result to the transmitting end. Thereby, the transmitting end can select an appropriate channel measurement resource based on the channel measurement result and send data to the receiving end. When only one channel is used at a time, the receiving end can obtain accurate measurement results through channel measurement. However, when multiple channels are used at a time, due to the interference between the multiple channels, it is impossible to accurately obtain the measurement results using the existing channel measurement methods.

Summary of the Invention

[0004] Embodiments of the present invention disclose a communication method and apparatus for improving the accuracy of channel measurement.

[0005] According to a first aspect, a communication method is disclosed. This communication method can be applied to a terminal device or a module (e.g., a chip) in the terminal device. Hereinafter, for the sake of explanation, an example where this communication method is applied to a terminal device is used. This communication method includes a step of receiving first configuration information from a radio access network device, where the first configuration information includes a plurality of channel measurement resources, and the plurality of channel measurement resources correspond to two groups of channel measurement resources; a step of performing channel measurement based on the plurality of channel measurement resources to obtain a first measurement result; and a step of sending the first measurement result to the radio access network device. The first measurement result includes a joint channel measurement result, the joint channel measurement result is a channel measurement result of a first resource pair, the first resource pair includes one or more resource pairs including two channel measurement resources, the two channel measurement resources belong to two groups of channel measurement resources respectively, and the joint channel measurement result includes information regarding the first resource pair.

[0006] In this embodiment of the present invention, the terminal device performs channel measurement on a resource pair including two channel measurement resources, and through the measurement, can obtain a measurement result that the two channel measurement resources included in the resource pair use different channels to transmit data simultaneously, send the measurement result to the radio access network device, and as a result, the radio access network device can select the most appropriate channel measurement resource for data transmission based on the measurement result reported by the terminal device. Since the case where a plurality of channel measurement resources use different channels simultaneously is considered in the channel measurement process, the problem that the measurement result becomes inaccurate due to mutual interference in different channels when a plurality of channel measurement resources use different channels simultaneously is avoided, and it is possible to improve the accuracy of channel measurement. One channel measurement resource corresponds to one channel.

[0007] In a possible implementation, the first configuration information includes first indication information, and the first indication information indicates a quantity N1 of channel measurement resources included in a first group of channel measurement resources among two groups of channel measurement resources, where N1 is an integer greater than or equal to 1.

[0008] In this embodiment of the present invention, based on a plurality of channel measurement resources included in the configuration information and indication information indicating the quantity of channel measurement resources included in a first group of channel measurement resources among two groups of channel measurement resources, the terminal device can determine which channel measurement resources among the plurality of channel measurement resources are included in the first group of channel measurement resources, and can determine which channel measurement resources among the plurality of channel measurement resources are included in the second group of channel measurement resources.

[0009] In a possible implementation, the channel measurement resources included in the first group of channel measurement resources among two groups of channel measurement resources are the first N1 channel measurement resources or the last N1 channel measurement resources among the plurality of channel measurement resources, and the channel measurement resources included in the second group of channel measurement resources among two groups of channel measurement resources are the channel measurement resources other than the N1 channel measurement resources among the plurality of channel measurement resources.

[0010] In this embodiment of the present invention, based on a plurality of channel measurement resources included in the configuration information and indication information indicating the quantity of channel measurement resources included in a first group of channel measurement resources among two groups of channel measurement resources, the terminal device can accurately determine which channel measurement resources among the plurality of channel measurement resources are included in the first group of channel measurement resources, and which channel measurement resources among the plurality of channel measurement resources are included in the second group of channel measurement resources.

[0011] In a possible implementation, the first configuration information further includes second indication information, the second indication information indicates a first resource, and the first resource is one or more channel measurement resources used for single-channel measurement in a plurality of channel measurement resources.

[0012] In this embodiment of the present invention, the terminal device determines, based on the indication information indicating the channel measurement resources used for single-channel measurement, the channel measurement resources for which single-channel measurement needs to be performed in a plurality of channel measurement resources, thereby avoiding performing single-channel measurement on all of the plurality of channel measurement resources, reducing the number of channel measurement resources for which single-channel measurement needs to be performed, and thereby reducing the power consumption of the terminal device.

[0013] In a possible implementation, the second indication information indicates the number M of channel measurement resources used for single-channel measurement in the channel measurement resources included in each of two groups of channel measurement resources, and M is an integer greater than or equal to 1.

[0014] In this embodiment of the present invention, the radio access network device uses a value to indicate all the channel measurement resources for which single-channel measurement needs to be performed in two groups of channel measurement resources, thereby reducing the amount of information that needs to be transmitted and thereby saving transmission resources. In addition, since the terminal device can determine all the channel measurement resources for which single-channel measurement needs to be performed in two groups of channel measurement resources based on the value, the processing process of the terminal device is reduced, and it is possible to reduce the power consumption of the terminal device.

[0015] In a possible implementation, the channel measurement resources used for single-channel measurement in each group of channel measurement resources are the first M channel measurement resources or the last M channel measurement resources in each group of channel measurement resources.

[0016] In this embodiment of the present invention, the terminal device can directly determine the first M channel measurement resources or the last M channel measurement resources in each group of channel measurement resources as the channel measurement resources for which single-channel measurement needs to be performed, and can quickly determine the channel measurement resources for which single-channel measurement needs to be performed. As a result, it is possible to increase the rate at which the terminal device performs channel measurement.

[0017] In a possible implementation, the second indication information is a first bitmap.

[0018] In this embodiment of the present invention, the terminal device determines, based on the first bitmap, whether single-channel measurement needs to be performed for each of the plurality of channel measurement resources, and can accurately determine the channel measurement resources for which single-channel measurement needs to be performed among the plurality of channel measurement resources.

[0019] In a possible implementation, the first configuration information further includes third indication information, the third indication information indicates a second resource pair, the second resource pair is a resource pair used for joint channel measurement, and the second resource pair includes the first resource pair.

[0020] In this embodiment of the present invention, the terminal device determines, based on the indication information indicating the resource pair used for joint channel measurement, the resource pairs for which joint channel measurement needs to be performed, and avoids performing joint channel measurement on all resource pairs including a plurality of channel measurement resources, reducing the number of resource pairs for which joint channel measurement needs to be performed, thereby reducing the power consumption of the terminal device. In addition, the terminal device determines, based on the indication information indicating the resource pair used for joint channel measurement, the resource pairs for which joint channel measurement needs to be performed, and can perform joint channel measurement using these resource pairs. As a result, the radio access network device can determine the most suitable channel measurement resource or resource pair for sending data to the terminal device based on the joint channel measurement result.

[0021] In a possible implementation, the third indication information is a second bitmap.

[0022] In this embodiment of the present invention, the terminal device determines, based on the second bitmap, whether joint channel measurement needs to be performed for each of the resource pairs, and can accurately determine the resource pairs for which joint channel measurement needs to be performed.

[0023] In a possible implementation, the first bitmap and the second bitmap are two parts of a third bitmap.

[0024] In this embodiment of the present invention, the wireless access network device uses a bitmap to indicate the channel measurement resources and resource pairs that need to be measured, reducing the amount of indication information that needs to be transmitted, reducing the amount of data that needs to be transmitted, and thereby saving transmission resources. In addition, since the terminal device can determine the channel measurement resources and resource pairs that need to be measured based on the bitmap, the processing process of the terminal device can be reduced, and the power consumption of the terminal device can be reduced.

[0025] In a possible implementation, the ((i - 1) * N2 + j)-th bit or the ((j - 1) * N1 + i)-th bit in the second bitmap corresponds to a resource pair including the i-th channel measurement resource in the first group of channel measurement resources and the j-th channel measurement resource in the second group of channel measurement resources. N1 is the quantity of channel measurement resources included in the first group of channel measurement resources, and N2 is the quantity of channel measurement resources included in the second group of channel measurement resources.

[0026] In this embodiment of the present invention, the terminal device can quickly determine the resource pairs that need to be measured based on the bits in the second bitmap.

[0027] In a possible implementation, when the frequency band used by the wireless access network device falls within frequency range (FR) 2, different resource pairs in the second resource pair include different channel measurement resources.

[0028] In this embodiment of the present invention, when the frequency band used by the wireless access network device falls within frequency range 2, different resource pairs in the resource pairs that need to be measured include different channel measurement resources. Therefore, the problem that it is impossible to perform channel measurement on the resource pairs due to the beam problem is avoided.

[0029] In a possible implementation, the first configuration information further includes fourth indication information. The fourth indication information indicates a reporting mode. The reporting mode includes at least a first mode and a second mode. The first mode reports one group of joint channel measurement results and one group of measurement results in at least one group of single-channel measurement results. The second mode reports Y groups of joint channel measurement results and X groups of single-channel measurement results. The value of Y is 1 or is set by the wireless access network device, and the value of X is set by the wireless access network device.

[0030] In this embodiment of the present invention, the terminal device can determine the reporting mode based on the indication information indicating the reporting mode. Further, based on the reporting mode, the terminal device can determine the measurement results that need to be reported, prevent the terminal device from reporting all the measurement results, reduce the quantity of the measurement results that need to be reported, and thereby save transmission resources.

[0031] In a possible implementation, the fourth indication information includes two options. When the fourth indication information is the first option, the fourth indication information indicates the first mode. When the fourth indication information is the second option, the fourth indication information indicates the second mode.

[0032] In this embodiment of the present invention, the terminal device can quickly determine a reporting mode based on the configuration information, and further quickly determine the measurement results that need to be reported, thereby increasing the reporting rate.

[0033] In a possible implementation, the reporting mode further includes a third mode, in which only single-channel measurement results are reported. The fourth indication information includes three options. When the fourth indication information is the first option, the fourth indication information indicates the first mode. When the fourth indication information is the second option, the fourth indication information indicates the second mode. When the fourth indication information is the third option, the fourth indication information indicates the third mode.

[0034] In this embodiment of the present invention, the terminal device can quickly determine a reporting mode based on the configuration information, and further quickly determine the measurement results that need to be reported, thereby increasing the reporting rate.

[0035] In a possible implementation, when the measurement method is single-channel measurement, the first configuration information does not include one or more of the following information, namely, the second indication information, the third indication information, and the fourth indication information.

[0036] In this embodiment of the present invention, the measurement method can be single-channel measurement or joint-channel measurement. When the measurement method is single-channel measurement, the terminal device only needs to perform single-channel measurement, that is, only needs to measure single-channel measurement resources. When the measurement method is joint-channel measurement, the terminal device not only needs to perform joint-channel measurement, but may also need to perform single-channel measurement. When the measurement method is joint-channel measurement, the configuration information may include second indication information, third indication information, and fourth indication information. When the measurement method is single-channel measurement, the configuration information may not include one or more of the second indication information, the third indication information, and the fourth indication information.

[0037] In a possible implementation, when the third resource pair is measured, the reference signals on each of the two channel measurement resources in the third resource pair are simultaneously received through the reception beams of the two channel measurement resources, and the third resource pair is any one of the resource pairs in the second resource pair.

[0038] In this embodiment of the present invention, when channel measurement is performed on a resource pair, the reference signals on each of the two channel measurement resources are simultaneously received through the reception beams of the two channel measurement resources in the resource pair. As a result, it is possible to measure the interference caused by one channel to the other channel.

[0039] In a possible implementation, the number of channel state information (CSI) processing units (CPUs) occupied by the measurement is 2 * P, Q + 2 * P, or Q + k *P is the number of channel measurement resources included in the first resource, Q is the number of resource pairs included in the second resource pair, and k is a value reported by the terminal device or a value set by the radio access network device.

[0040] In this embodiment of the present invention, when the measurement method is joint channel measurement, the terminal device may first determine the number of CPUs according to the method described above, and then determine whether the number of CPUs in the current idle state is greater than or equal to the determined number of CPUs. The terminal device determines that the number of CPUs in the current idle state is greater than or equal to the determined number of CPUs and Only when determined, perform channel measurement based on a plurality of channel measurement resources, thereby avoiding the case where the measurement is forced to stop after a period due to insufficient number of CPUs in the idle state, reducing unnecessary operations of the terminal device, and as a result, it is possible to reduce the power consumption of the terminal device.

[0041] In a possible implementation, the first measurement result further includes information about the second resource, and the second resource is the channel measurement resource to be reported in the first resource. The information about the second resource is any one of the local index of the second resource in the group of channel measurement resources corresponding to the second resource, the local index of the second resource in the channel measurement resources belonging to the first resource in the group of channel measurement resources corresponding to the second resource, and the index of the bit corresponding to the second resource in the first bitmap.

[0042] In this embodiment of the present invention, the information regarding the second resource may be the local index of the second resource in the group of channel measurement resources corresponding to the second resource, rather than the index of the second resource in the plurality of channel measurement resources. Therefore, the number of bits required to report the information regarding the second resource is reduced, the amount of data that needs to be transmitted is reduced, and thereby the transmission resources can be saved. Alternatively, the information regarding the second resource may not be the local index of the second resource in the group of channel measurement resources corresponding to the second resource, nor the index of the second resource in the plurality of channel measurement resources, but may be the local index of the second resource in the channel measurement resource belonging to the first resource in the group of channel measurement resources corresponding to the second resource. Therefore, further, the number of bits required to report the information regarding the second resource is reduced, the amount of data that needs to be transmitted is reduced, and thereby the transmission resources can be saved. Alternatively, the information regarding the second resource may be the index of the bit corresponding to the second resource in the first bitmap. As a result, the radio access network device can quickly determine the reported channel measurement resources based on the index of the bit.

[0043] In a possible implementation, the information regarding the first resource pair is the index of the bit corresponding to the first resource pair in the second bitmap.

[0044] In this embodiment of the present invention, the information regarding the first resource pair is the index of the bit corresponding to the first resource pair in the second bitmap. As a result, the radio access network device can quickly determine the reported resource pair based on the index of the bit.

[0045] In a possible implementation, the first measurement result includes at least one group of joint channel measurement results and / or at least one group of single-channel measurement results. There is a first reporting priority among at least one group of joint channel measurement results and / or at least one group of single-channel measurement results. At least one group of joint channel measurement results corresponds one-to-one with the resource pairs included in the first resource pair, and each of at least one group of single-channel measurement results corresponds to one of two groups of channel measurement resources.

[0046] In this embodiment of the present invention, there is a reporting priority among at least one group of joint channel measurement results and / or at least one group of single-channel measurement results. When the quantity of measurement results is large, or when the quantity of transmission resources used to report the measurement results is small, the reporting is performed based on the reporting priority among at least one group of joint channel measurement results and / or at least one group of single-channel measurement results, so that the reporting of measurement results with a higher reporting priority, that is, the reporting of important measurement results, is ensured, and the impact of the impossibility of reporting all measurement results can be reduced.

[0047] In a possible implementation, the first reporting priority includes that the reporting priority of at least one group of joint channel measurement results is lower than the reporting priority of at least one group of single-channel measurement results.

[0048] In a possible implementation, the first reporting priority includes that the reporting priority of at least one group of joint channel measurement results and / or the reporting priority of at least one group of single-channel measurement results is determined based on a channel quality indicator (CQI) corresponding to each group of measurement results.

[0049] In this embodiment of the present invention, the reporting priority of at least one group of joint channel measurement results and / or the reporting priority of at least one group of single channel measurement results are determined based on the CQI corresponding to each group of measurement results, and the measurement results that need to be reported preferentially are determined based on the CQI, so that the impact of the impossibility of reporting all measurement results can be reduced.

[0050] In a possible implementation, the fact that the reporting priority of at least one group of joint channel measurement results and / or the reporting priority of at least one group of single channel measurement results are determined based on the CQI corresponding to each group of measurement results means that when the CQIs corresponding to two groups of measurement results are different, the measurement results with a larger CQI have a higher reporting priority, or when the CQIs corresponding to two groups of measurement results are the same, the reporting priorities of the two groups of measurement results are determined based on the setting sequences of the two groups of channel measurement resources corresponding to the two groups of measurement results.

[0051] In this embodiment of the present invention, when the CQIs corresponding to two groups of measurement results are different, the measurement results with a larger CQI have a higher reporting priority. Therefore, it is ensured that the measurement results with a larger CQI are reported preferentially, that is, the measurement results with good channel quality are reported preferentially, and the impact of the impossibility of reporting all measurement results is reduced.

[0052] In a possible implementation, this communication method may further include the step of receiving second setting information from a radio access network device, where the first setting information is different from the second setting information, and the step of performing channel measurement based on the second setting information to obtain a second measurement result. There is a second reporting priority between the first measurement result and the second measurement result. The terminal device first determines the reporting priority between the first measurement result and the second measurement result based on the second reporting priority, and then separately determines the reporting priority between at least two groups of measurement results included in the first measurement result and the second measurement result based on the first reporting priority.

[0053] In this embodiment of the present invention, when there is a plurality of setting information, the reporting priority of measurement results corresponding to different setting information may be determined based on the reporting priority corresponding to different setting information. The reporting priority between different groups of measurement results may be determined according to the aforementioned method for measurement results corresponding to the same setting information. As a result, the reporting priority between different settings can be made compatible with the internal reporting priority of the same setting.

[0054] In a possible implementation, when the frequency domain granularity of channel measurement is a sub-band, there is a third reporting priority between the measurement results corresponding to the even-numbered sub-bands and the measurement results corresponding to the odd-numbered sub-bands within the same group of measurement results in the first measurement result. The terminal device first determines the reporting priority between at least one group of measurement results included in the first measurement result based on the first reporting priority, and then determines the reporting priority between the measurement results corresponding to the even-numbered sub-bands and the measurement results corresponding to the odd-numbered sub-bands included in each of at least one group of measurement results based on the third reporting priority.

[0055] In this embodiment of the present invention, the reporting priorities between different groups of measurement results corresponding to the same configuration information and the reporting priorities of the measurement results corresponding to the even-numbered sub-bands and the odd-numbered sub-bands in the measurement results can be determined according to the foregoing method. As a result, the reporting priorities between different groups corresponding to the same configuration can be made to match the reporting priorities between different sub-bands of the same measurement result.

[0056] In a possible implementation, the first configuration information further includes at least one interference measurement resource. The quantity of the interference measurement resources in the at least one interference measurement resource is equal to the sum of Q and P. The type of the interference measurement resource is a non-zero power (NZP) channel state information-reference signal (CSI-RS) resource, a channel state information-interference measurement (CSI-IM) resource, or another type of interference measurement resource.

[0057] In this embodiment of the present invention, the terminal device can measure the interference corresponding to each channel measurement resource or resource pair based on the interference measurement resources included in the first configuration information, and determine the CQI corresponding to each channel measurement resource or resource pair.

[0058] In a possible implementation, the first Q interference measurement resources in the at least one interference measurement resource correspond one-to-one to the Q channel measurement resources included in the first resource, and the remaining P interference measurement resources in the at least one interference measurement resource correspond one-to-one to the P resource pairs included in the second resource pair.

[0059] In this embodiment of the present invention, the interference measurement resource corresponds one-to-one with the channel measurement resource to be measured. As a result, the terminal device can determine the corresponding CQI for each channel measurement resource to be measured. The interference measurement resource corresponds one-to-one with the resource pair to be measured. As a result, the terminal device can determine the corresponding CQI for each resource pair to be measured.

[0060] In a possible implementation, when the third resource pair is measured, the measurement is performed using the spatial reception parameters or quasi-co-location (QCL) assumptions of the two channel measurement resources in the third resource pair, and the third resource pair is any resource pair in the second resource pair.

[0061] In this embodiment of the present invention, when channel measurement is performed on a resource pair, the reference signals on each of the two channel measurement resources in the resource pair are received simultaneously using the spatial reception parameters or quasi-co-location assumptions of the two channel measurement resources. As a result, it is possible to measure the interference caused by one channel to the other channel.

[0062] In a possible implementation, the first configuration information includes a second index, the second index includes second indication information and third indication information, and the second index includes P + Q index values.

[0063] In this embodiment of the present invention, the radio access network device uses an index to indicate the channel measurement resources and resource pairs that need to be measured, reducing the amount of indication information that needs to be transmitted, reducing the amount of data that needs to be transmitted, and thereby saving transmission resources. In addition, since the terminal device can determine the channel measurement resources and resource pairs that need to be measured based on the index, the processing process of the terminal device can be reduced, and the power consumption of the terminal device can be reduced.

[0064] In a possible implementation, when the reporting mode is the first mode, the information about the second resource and the information about the first resource pair are represented using the same parameter or index. When the reporting mode is the second mode, the information about the second resource and the information about the first resource pair are represented using different parameters or indexes.

[0065] In this embodiment of the present invention, the terminal device uses an index or parameter to indicate the information about the channel measurement resources and resource pairs that need to be reported, reducing the amount of information that needs to be transmitted, reducing the amount of data that needs to be transmitted, and thereby saving transmission resources. In addition, since the radio access network device can determine the channel measurement resources and resource pairs that need to be reported based on the index or parameter, the processing process of the radio access network device can be reduced, and the power consumption of the radio access network device can be reduced.

[0066] In a possible implementation, the first measurement result further includes a first field, and the first field indicates the rank indicator (RI) of the channel. When the first field indicates one RI, the measurement result included in the first measurement result is a single-channel measurement result. When the first field indicates an RI combination including two RIs, the measurement result included in the first measurement result is a joint-channel measurement result.

[0067] In a possible implementation, when the first interference measurement resource is measured, the measurement is performed using the received beam, spatial reception parameters, or QCL assumption of two channel measurement resources in the third resource pair, and the first interference measurement resource is an interference measurement resource corresponding to the third resource pair in at least one interference measurement resource.

[0068] In a possible implementation, the first configuration information further includes at least one interference measurement resource, and the quantity of interference measurement resources in at least one interference measurement resource is Q + 2 * equal to P, and the type of interference measurement resource is an NZP CSI-RS resource, a CSI-IM resource, or another type of interference measurement resource.

[0069] In a possible implementation, the Q interference measurement resources in at least one interference measurement resource correspond one-to-one with the Q channel measurement resources included in the first resource, and the remaining 2 * P interference measurement resources in at least one interference measurement resource correspond one-to-one with the 2 * P channel measurement resources included in the second resource pair.

[0070] In a possible implementation, when the first interference measurement resource is measured, the measurement is performed using the received beam, spatial reception parameters, or QCL assumption of two channel measurement resources in the third resource pair, and the first interference measurement resource is an interference measurement resource corresponding to the third resource pair in at least one interference measurement resource.

[0071] According to a second aspect, a communication method is disclosed. This communication method can be applied to a radio access network device or a module (e.g., a chip) in a radio access network device. For the sake of explanation below, an example where this communication method is applied to a radio access network device is used. This communication method includes a step of sending first configuration information to a terminal device, where the first configuration information includes a plurality of channel measurement resources, and the plurality of channel measurement resources correspond to two groups of channel measurement resources, and a step of receiving a first measurement result from the terminal device. The first measurement result may include a joint channel measurement result, the joint channel measurement result is a channel measurement result of a first resource pair, the first resource pair includes one or more resource pairs including two channel measurement resources, the two channel measurement resources respectively belong to two groups of channel measurement resources, and the joint channel measurement result includes information about the first resource pair.

[0072] In this embodiment of the present invention, the wireless access network device sets a plurality of channel measurement resources corresponding to two groups of channel measurement resources. As a result, the terminal device performs channel measurement on a resource pair including two channel measurement resources, and obtains a measurement result that the two channel measurement resources included in the resource pair transmit data using different channels simultaneously, and can send the measurement result to the wireless access network device. Next, the wireless access network device can select the most appropriate channel measurement resource for transmitting data to the terminal device based on the measurement result reported by the terminal device. Since the terminal device considers the case where a plurality of channel measurement resources use different channels simultaneously in the channel measurement process, the problem that the measurement result becomes inaccurate due to mutual interference in different channels when a plurality of channel measurement resources use different channels simultaneously is avoided, and the accuracy of channel measurement can be improved. One channel measurement resource corresponds to one channel.

[0073] In a possible implementation, the first setting information includes first indication information, and the first indication information indicates a quantity N1 of channel measurement resources included in the first group of channel measurement resources in the two groups of channel measurement resources, where N1 is an integer greater than or equal to 1.

[0074] In this embodiment of the present invention, the wireless access network device sets, for the terminal device, a plurality of channel measurement resources and indication information indicating the quantity of channel measurement resources included in the first group of channel measurement resources in the two groups of channel measurement resources. As a result, the terminal device can determine which channel measurement resources among the plurality of channel measurement resources are included in the first group of channel measurement resources and which channel measurement resources among the plurality of channel measurement resources are included in the second group of channel measurement resources based on the plurality of channel measurement resources and the indication information.

[0075] In a possible implementation, the channel measurement resources included in the first group of channel measurement resources among the two groups of channel measurement resources are the first N1 channel measurement resources or the last N1 channel measurement resources among the plurality of channel measurement resources, and the channel measurement resources included in the second group of channel measurement resources among the two groups of channel measurement resources are the channel measurement resources other than the N1 channel measurement resources among the plurality of channel measurement resources.

[0076] In this embodiment of the present invention, the radio access network device sets, for the terminal device, a plurality of channel measurement resources and indication information indicating the quantity of the channel measurement resources included in the first group of channel measurement resources among the two groups of channel measurement resources. As a result, the terminal device can accurately determine, based on the plurality of channel measurement resources and the indication information, which channel measurement resources among the plurality of channel measurement resources are included in the first group of channel measurement resources and which channel measurement resources among the plurality of channel measurement resources are included in the second group of channel measurement resources.

[0077] In a possible implementation, the first configuration information further includes second indication information, the second indication information indicates a first resource, and the first resource is one or more channel measurement resources used for a single channel measurement among the plurality of channel measurement resources.

[0078] In this embodiment of the present invention, the wireless access network device sets indication information indicating channel measurement resources used for single-channel measurement for a terminal device. As a result, the terminal device determines, based on the indication information, channel measurement resources for which single-channel measurement needs to be performed among a plurality of channel measurement resources, thereby avoiding performing single-channel measurement for all of the plurality of channel measurement resources, reducing the number of channel measurement resources for which single-channel measurement needs to be performed, and thereby reducing the power consumption of the terminal device.

[0079] In a possible implementation, the second indication information indicates the number M of channel measurement resources used for single-channel measurement in the channel measurement resources included in each of two groups of channel measurement resources, where M is an integer greater than or equal to 1.

[0080] In this embodiment of the present invention, the wireless access network device uses a value to indicate all channel measurement resources for which single-channel measurement needs to be performed in two groups of channel measurement resources, reducing the amount of information that needs to be transmitted, and thereby saving transmission resources. In addition, the terminal device can determine all channel measurement resources for which single-channel measurement needs to be performed in two groups of channel measurement resources based on the value set by the wireless access network device, so that the processing process of the terminal device is reduced and the power consumption of the terminal device can be reduced.

[0081] In a possible implementation, the channel measurement resources used for single-channel measurement in each group of channel measurement resources are the first M channel measurement resources or the last M channel measurement resources in each group of channel measurement resources.

[0082] In this embodiment of the present invention, the terminal device can directly determine, based on the value set by the radio access network device, the first M channel measurement resources or the last M channel measurement resources in each group of channel measurement resources as the channel measurement resources for which single-channel measurement needs to be performed, can quickly determine the channel measurement resources for which single-channel measurement needs to be performed, and as a result, it is possible to increase the rate at which the terminal device performs channel measurement.

[0083] In a possible implementation, the second indication information is a first bitmap.

[0084] In this embodiment of the present invention, the radio access network device can use a bitmap to indicate the channel measurement resources for which single-channel measurement needs to be performed by the terminal device. As a result, the terminal device can determine, based on the bitmap, whether single-channel measurement needs to be performed for each of the plurality of channel measurement resources, and can accurately determine the channel measurement resources for which single-channel measurement needs to be performed among the plurality of channel measurement resources.

[0085] In a possible implementation, the first configuration information further includes third indication information, the third indication information indicates a second resource pair, the second resource pair is a resource pair used for joint channel measurement, and the second resource pair includes the first resource pair.

[0086] In this embodiment of the present invention, the wireless access network device sets indication information indicating a resource pair to be used for joint channel measurement for the terminal device. As a result, the terminal device determines, based on the indication information indicating the resource pair to be used for joint channel measurement, a resource pair for which joint channel measurement needs to be performed, and avoids performing joint channel measurement for all resource pairs including a plurality of channel measurement resources, reducing the number of resource pairs for which joint channel measurement needs to be performed, thereby reducing the power consumption of the terminal device. In addition, the wireless access network device sets indication information indicating a resource pair to be used for joint channel measurement for the terminal device. As a result, the terminal device determines, based on the indication information, a resource pair for which joint channel measurement needs to be performed, and can perform joint channel measurement using these resource pairs. As a result, the wireless access network device can determine the joint channel measurement result, that is, the channel measurement resource or resource pair most suitable for sending data to the terminal device based on the joint channel measurement result.

[0087] In a possible implementation, the third indication information is a second bitmap.

[0088] In this embodiment of the present invention, the wireless access network device may use a bitmap to indicate a resource pair for which joint channel measurement needs to be performed by the terminal device. As a result, the terminal device can accurately determine, based on the bitmap, whether joint channel measurement needs to be performed for each of the resource pairs, and determine a resource pair for which joint channel measurement needs to be performed.

[0089] In a possible implementation, the first bitmap and the second bitmap are two parts of a third bitmap.

[0090] In this embodiment of the present invention, the radio access network device uses a bitmap to indicate the channel measurement resources and resource pairs that need to be measured by the terminal device, reducing the amount of indication information that needs to be transmitted, reducing the amount of data that needs to be transmitted, and thereby saving transmission resources. In addition, since the terminal device can determine the channel measurement resources and resource pairs that need to be measured based on the bitmap set by the radio access network device, the processing process of the terminal device can be reduced, and the power consumption of the terminal device can be reduced.

[0091] In a possible implementation, the ((i - 1) * N2 + j)-th bit or the ((j - 1) * N1 + i)-th bit in the second bitmap corresponds to a resource pair including the i-th channel measurement resource in the first group of channel measurement resources and the j-th channel measurement resource in the second group of channel measurement resources. N1 is the number of channel measurement resources included in the first group of channel measurement resources, and N2 is the number of channel measurement resources included in the second group of channel measurement resources.

[0092] In this embodiment of the present invention, each bit in the second bitmap indicates a resource pair including a channel measurement resource in the first group of channel measurement resources and a channel measurement resource in the second group of channel measurement resources. As a result, the terminal device can quickly determine the resource pairs that need to be measured based on the bits in the second bitmap.

[0093] In a possible implementation, when the frequency band used by the radio access network device falls within FR 2, different resource pairs in the second resource pair include different channel measurement resources.

[0094] In this embodiment of the present invention, when the frequency band used by the wireless access network device falls within frequency range 2, different resource pairs in the resource pairs that need to be measured include different channel measurement resources. Therefore, the problem that it is impossible to perform channel measurement on the resource pairs due to the beam problem is avoided.

[0095] In a possible implementation, the first configuration information further includes fourth indication information. The fourth indication information indicates a reporting mode. The reporting mode includes at least a first mode and a second mode. The first mode reports one group of joint channel measurement results and one group of measurement results in at least one group of single-channel measurement results. The second mode reports Y groups of joint channel measurement results and X groups of single-channel measurement results. The value of Y is 1 or is set by the wireless access network device, and the value of X is set by the wireless access network device.

[0096] In this embodiment of the present invention, the wireless access network device can set indication information indicating the reporting mode for the terminal device. As a result, the terminal device can determine the reporting mode based on the indication information. Further, based on the reporting mode, the terminal device can determine the measurement results that need to be reported, preventing the terminal device from reporting all measurement results, reducing the quantity of measurement results that need to be reported, and thereby saving transmission resources.

[0097] In a possible implementation, the fourth indication information includes two options. When the fourth indication information is the first option, the fourth indication information indicates the first mode. When the fourth indication information is the second option, the fourth indication information indicates the second mode.

[0098] In this embodiment of the present invention, the wireless access network device sets a reporting mode for the terminal device. As a result, the terminal device can quickly determine the reporting mode based on the setting information, and further quickly determine the measurement results that need to be reported, thereby increasing the reporting rate.

[0099] In a possible implementation, the reporting mode further includes a third mode, in which only single-channel measurement results are reported. The fourth indication information includes three options. When the fourth indication information is the first option, the fourth indication information indicates the first mode. When the fourth indication information is the second option, the fourth indication information indicates the second mode. When the fourth indication information is the third option, the fourth indication information indicates the third mode.

[0100] In this embodiment of the present invention, the wireless access network device sets a reporting mode for the terminal device. As a result, the terminal device can quickly determine the reporting mode based on the setting information, and further quickly determine the measurement results that need to be reported, thereby increasing the reporting rate.

[0101] In a possible implementation, when the measurement method is single-channel measurement, the first setting information does not include one or more of the following information, namely the second indication information, the third indication information, and the fourth indication information.

[0102] In this embodiment of the present invention, the measurement method can be single-channel measurement or joint-channel measurement. When the measurement method is single-channel measurement, the radio access network device can set the terminal device to perform only single-channel measurement, that is, the terminal device measures only single-channel measurement resources. When the measurement method is joint-channel measurement, the radio access network device can set the terminal device to perform not only joint-channel measurement but also single-channel measurement, that is, to measure resource pairs as well. When the measurement method is joint-channel measurement, the configuration information may include second indication information, third indication information, and fourth indication information. When the measurement method is single-channel measurement, the configuration information may not include one or more of the second indication information, the third indication information, and the fourth indication information.

[0103] In a possible implementation, the first measurement result further includes information about a second resource, and the second resource is the channel measurement resource to be reported in the first resource. The information about the second resource is any one of the local index of the second resource in the group of channel measurement resources corresponding to the second resource, the local index of the second resource in the channel measurement resource belonging to the first resource in the group of channel measurement resources corresponding to the second resource, and the index of the bit corresponding to the second resource in the first bitmap.

[0104] In this embodiment of the present invention, the information regarding the second resource may be the local index of the second resource in the group of channel measurement resources corresponding to the second resource, rather than the index of the second resource in the plurality of channel measurement resources. Therefore, the number of bits required for the terminal device to report the information regarding the second resource is reduced, the amount of data that needs to be transmitted is reduced, and thereby the transmission resources can be saved. Alternatively, the information regarding the second resource may not be the local index of the second resource in the group of channel measurement resources corresponding to the second resource, nor the index of the second resource in the plurality of channel measurement resources, but may be the local index of the second resource in the channel measurement resource belonging to the first resource in the group of channel measurement resources corresponding to the second resource. Therefore, further, the number of bits required for the terminal device to report the information regarding the second resource is reduced, the amount of data that needs to be transmitted is reduced, and thereby the transmission resources can be saved. Alternatively, the information regarding the second resource may be the index of the bit corresponding to the second resource in the first bitmap. As a result, the radio access network device can quickly determine the reported channel measurement resources based on the index of the bit.

[0105] In a possible implementation, the information regarding the first resource pair is the index of the bit corresponding to the first resource pair in the second bitmap.

[0106] In this embodiment of the present invention, the information regarding the first resource pair is the index of the bit corresponding to the first resource pair in the second bitmap. As a result, the radio access network device can quickly determine the reported resource pair based on the index of the bit.

[0107] In a possible implementation, the first set of configuration information further includes at least one interference measurement resource, the quantity of the interference measurement resources in the at least one interference measurement resource is equal to the sum of Q and P, and the type of the interference measurement resource is an NZP CSI-RS resource, a CSI-IM resource, or another type of interference measurement resource.

[0108] In this embodiment of the present invention, the radio access network device sets, for the terminal device, the quantity of interference measurement resources equal to the sum of the quantity of channel measurement resources that need to be measured and the quantity of resource pairs that need to be measured. As a result, the terminal device can determine the CQI corresponding to the channel measurement resources and resource pairs that need to be measured based on the interference measurement resources included in the configuration information.

[0109] In a possible implementation, the first Q interference measurement resources in the at least one interference measurement resource correspond one-to-one with the Q channel measurement resources included in the first resource, and the remaining P interference measurement resources in the at least one interference measurement resource correspond one-to-one with the P resource pairs included in the second resource pair.

[0110] In this embodiment of the present invention, the interference measurement resources set for the terminal device by the radio access network device correspond one-to-one with the channel measurement resources that need to be measured. As a result, the terminal device can determine the corresponding CQI for each channel measurement resource that needs to be measured. The interference measurement resources set for the terminal device by the radio access network device correspond one-to-one with the resource pairs that need to be measured. As a result, the terminal device can determine the corresponding CQI for each resource pair that needs to be measured.

[0111] In a possible implementation, the first configuration information includes a second index, the second index includes second indication information and third indication information, the second index includes P+Q index values, Q is the quantity of channel measurement resources included in the first resource, and P is the quantity of resource pairs included in the second resource pair.

[0112] In this embodiment of the present invention, the radio access network device uses an index to indicate the channel measurement resources and resource pairs that need to be measured, reducing the amount of indication information that needs to be transmitted, reducing the amount of data that needs to be transmitted, and thereby saving transmission resources. In addition, since the terminal device can determine the channel measurement resources and resource pairs that need to be measured based on the index, the processing process of the terminal device can be reduced, and the power consumption of the terminal device can be reduced.

[0113] In a possible implementation, when the reporting mode is the first mode, the information about the second resource and the information about the first resource pair are represented using the same parameter or index. When the reporting mode is the second mode, the information about the second resource and the information about the first resource pair are represented using different parameters or indexes.

[0114] In this embodiment of the present invention, the terminal device uses an index or parameter to indicate the information about the channel measurement resources and resource pairs that need to be reported, reducing the amount of information that needs to be transmitted, reducing the amount of data that needs to be transmitted, and thereby saving transmission resources. In addition, since the radio access network device can determine the channel measurement resources and resource pairs that need to be reported based on the index or parameter, the processing process of the radio access network device can be reduced, and the power consumption of the radio access network device can be reduced.

[0115] In a possible implementation, the first measurement result further includes a first field, and the first field indicates RI. If the first field includes one RI, the measurement result included in the first measurement result is a single-channel measurement result. If the first field indicates an RI combination including two RIs, the measurement result included in the first measurement result is a joint-channel measurement result.

[0116] In a possible implementation, the first configuration information further includes at least one interference measurement resource, and the quantity of the interference measurement resources in at least one interference measurement resource is Q + 2 * equal to P, and the type of the interference measurement resource is an NZP CSI-RS resource, a CSI-IM resource, or another type of interference measurement resource.

[0117] In a possible implementation, the Q interference measurement resources in at least one interference measurement resource correspond one-to-one with the Q channel measurement resources included in the first resource, and the remaining 2 * P interference measurement resources in at least one interference measurement resource correspond one-to-one with the 2 * P channel measurement resources included in the second resource pair.

[0118] According to a third aspect, a communication device is disclosed. This communication device can be a terminal device or a module (e.g., a chip) in a terminal device. The communication device includes a receiving unit configured to receive first configuration information from a radio access network device, where the first configuration information includes a plurality of channel measurement resources, and the plurality of channel measurement resources correspond to two groups of channel measurement resources; a measurement unit configured to perform channel measurement based on the plurality of channel measurement resources to obtain a first measurement result; and a transmitting unit configured to send the first measurement result to the radio access network device. The first measurement result includes a joint channel measurement result, the joint channel measurement result is a channel measurement result of a first resource pair, the first resource pair includes one or more resource pairs each including two channel measurement resources, the two channel measurement resources belong to two groups of channel measurement resources respectively, and the joint channel measurement result includes information about the first resource pair.

[0119] In a possible implementation, the first configuration information includes first indication information, and the first indication information indicates a quantity N1 of channel measurement resources included in a first group of channel measurement resources in two groups of channel measurement resources, where N1 is an integer greater than or equal to 1.

[0120] In a possible implementation, the channel measurement resources included in the first group of channel measurement resources in two groups of channel measurement resources are the first N1 channel measurement resources or the last N1 channel measurement resources among the plurality of channel measurement resources, and the channel measurement resources included in the second group of channel measurement resources in two groups of channel measurement resources are the channel measurement resources other than the N1 channel measurement resources among the plurality of channel measurement resources.

[0121] In a possible implementation, the first configuration information further includes second indication information, the second indication information indicates a first resource, and the first resource is one or more channel measurement resources used for single-channel measurement in a plurality of channel measurement resources.

[0122] In a possible implementation, the second indication information indicates a quantity M of channel measurement resources used for single-channel measurement in the channel measurement resources included in each of two groups of channel measurement resources, and M is an integer greater than or equal to 1.

[0123] In a possible implementation, the channel measurement resources used for single-channel measurement in each group of channel measurement resources are the first M channel measurement resources or the last M channel measurement resources in each group of channel measurement resources.

[0124] In a possible implementation, the second indication information is a first bitmap.

[0125] In a possible implementation, the first configuration information further includes third indication information, the third indication information indicates a second resource pair, the second resource pair is a resource pair used for joint channel measurement, and the second resource pair includes the first resource pair.

[0126] In a possible implementation, the third indication information is a second bitmap.

[0127] In a possible implementation, the first bitmap and the second bitmap are two parts of a third bitmap.

[0128] In a possible implementation, the (i - 1) * N2 + j)-th bit or the (j - 1) *The (N1 + i)-th bit corresponds to a resource pair including the i-th channel measurement resource in the first group of channel measurement resources and the j-th channel measurement resource in the second group of channel measurement resources, where N1 is the quantity of channel measurement resources included in the first group of channel measurement resources, and N2 is the quantity of channel measurement resources included in the second group of channel measurement resources.

[0129] In a possible implementation, when the frequency band used by the radio access network device falls within FR2, different resource pairs in the second resource pair include different channel measurement resources.

[0130] In a possible implementation, the first configuration information further includes fourth indication information, the fourth indication information indicates a reporting mode, and the reporting mode includes at least a first mode and a second mode. The first mode is to report one group of joint channel measurement results and one group of measurement results in at least one group of single-channel measurement results. The second mode is to report Y groups of joint channel measurement results and X groups of single-channel measurement results, where the value of Y is 1 or set by the radio access network device, and the value of X is set by the radio access network device.

[0131] In a possible implementation, the fourth indication information includes two options. When the fourth indication information is the first option, the fourth indication information indicates the first mode. When the fourth indication information is the second option, the fourth indication information indicates the second mode.

[0132] In a possible implementation, the reporting mode further includes a third mode, in which only single-channel measurement results are reported. The fourth indication information includes three options. When the fourth indication information is the first option, the fourth indication information indicates the first mode. When the fourth indication information is the second option, the fourth indication information indicates the second mode. When the fourth indication information is the third option, the fourth indication information indicates the third mode.

[0133] In a possible implementation, when the measurement method is single-channel measurement, the first configuration information does not include one or more of the following information, namely, the second indication information, the third indication information, and the fourth indication information.

[0134] In a possible implementation, when the third resource pair is measured, the reference signals on each of the two channel measurement resources in the third resource pair are received simultaneously through the received beams of the two channel measurement resources, and the third resource pair is any resource pair in the second resource pair.

[0135] In a possible implementation, the amount of CPU occupied by the measurement is 2 * P, Q + 2 * P, or Q + k * P, where Q is the number of channel measurement resources included in the first resource, P is the number of resource pairs included in the second resource pair, and k is a value reported by the terminal device or a value set by the radio access network device.

[0136] In a possible implementation, the first measurement result further includes information about a second resource, and the second resource is a channel measurement resource to be reported in the first resource. The information about the second resource is any one of a local index of the second resource in a group of channel measurement resources corresponding to the second resource, a local index of the second resource in a channel measurement resource belonging to the first resource in a group of channel measurement resources corresponding to the second resource, and an index of a bit corresponding to the second resource in the first bitmap.

[0137] In a possible implementation, the information about the first resource pair is an index of a bit corresponding to the first resource pair in the second bitmap.

[0138] In a possible implementation, the first measurement result includes at least one group of joint channel measurement results and / or at least one group of single channel measurement results. There is a first reporting priority among at least one group of joint channel measurement results and / or at least one group of single channel measurement results. At least one group of joint channel measurement results corresponds one-to-one with the resource pairs included in the first resource pair, and each of at least one group of single channel measurement results corresponds to one of two groups of channel measurement resources.

[0139] In a possible implementation, the first reporting priority includes that the reporting priority of at least one group of joint channel measurement results is lower than the reporting priority of at least one group of single channel measurement results.

[0140] In a possible implementation, the first reporting priority includes that the reporting priority of at least one group of joint channel measurement results and / or the reporting priority of at least one group of single channel measurement results are determined based on the CQI corresponding to each group of measurement results.

[0141] In a possible implementation, that the reporting priority of at least one group of joint channel measurement results and / or the reporting priority of at least one group of single channel measurement results are determined based on the CQI corresponding to each group of measurement results, when the CQIs corresponding to two groups of measurement results are different, the measurement results with a larger CQI have a higher reporting priority, or when the CQIs corresponding to two groups of measurement results are the same, the reporting priorities of the two groups of measurement results are determined based on the setting sequences of the two groups of channel measurement resources corresponding to the two groups of measurement results.

[0142] In a possible implementation, the receiving unit is further configured to receive second configuration information from a radio access network device, the first configuration information is different from the second configuration information, the measuring unit is further configured to perform channel measurement based on the second configuration information to obtain a second measurement result, there is a second reporting priority between the first measurement result and the second measurement result, and the terminal device first determines the reporting priority between the first measurement result and the second measurement result based on the second reporting priority, and then separately determines the reporting priorities between at least two groups of measurement results included in the first measurement result and the second measurement result based on the first reporting priority.

[0143] In a possible implementation, when the frequency domain granularity of channel measurement is a sub-band, there is a third reporting priority between the measurement results corresponding to the even-numbered sub-bands and the measurement results corresponding to the odd-numbered sub-bands within the same group of measurement results in the first measurement result, and the terminal device first determines the reporting priority between at least one group of measurement results included in the first measurement result based on the first reporting priority, and then determines the reporting priority between the measurement results corresponding to the even-numbered sub-bands and the measurement results corresponding to the odd-numbered sub-bands included in each of at least one group of measurement results based on the third reporting priority.

[0144] In a possible implementation, the first configuration information further includes at least one interference measurement resource, the quantity of the interference measurement resources in the at least one interference measurement resource is equal to the sum of Q and P, and the type of the interference measurement resource is an NZP CSI-RS resource or a CSI-IM resource.

[0145] In a possible implementation, the first Q interference measurement resources in the at least one interference measurement resource correspond one-to-one to the Q channel measurement resources included in the first resource, and the remaining P interference measurement resources in the at least one interference measurement resource correspond one-to-one to the P resource pairs included in the second resource pair.

[0146] In a possible implementation, when the third resource pair is measured, the measurement is performed using the spatial reception parameters or quasi-co-location (QCL) assumptions of the two channel measurement resources in the third resource pair, and the third resource pair is any resource pair in the second resource pair.

[0147] In a possible implementation, the first configuration information includes a second index, the second index includes second indication information and third indication information, and the second index includes P + Q index values.

[0148] In a possible implementation, when the reporting mode is the first mode, the information about the second resource and the information about the first resource pair are represented using the same parameters or indexes. When the reporting mode is the second mode, the information about the second resource and the information about the first resource pair are represented using different parameters or indexes.

[0149] In a possible implementation, the first measurement result further includes a first field, and the first field indicates the rank indicator (RI) of the channel. When the first field indicates one RI, the measurement result included in the first measurement result is a single-channel measurement result. When the first field indicates an RI combination including two RIs, the measurement result included in the first measurement result is a joint-channel measurement result.

[0150] In a possible implementation, when the first interference measurement resource is measured, the measurement is performed using the received beam, spatial reception parameters, or QCL assumption of two channel measurement resources in the third resource pair, and the first interference measurement resource is an interference measurement resource corresponding to the third resource pair in at least one interference measurement resource.

[0151] In a possible implementation, the first configuration information further includes at least one interference measurement resource, and the quantity of the interference measurement resources in at least one interference measurement resource is Q + 2 * equal to P, and the type of the interference measurement resource is an NZP CSI-RS resource, a CSI-IM resource, or another type of interference measurement resource.

[0152] In a possible implementation, the Q interference measurement resources in at least one interference measurement resource correspond one-to-one with the Q channel measurement resources included in the first resource, and the remaining 2 * P interference measurement resources in at least one interference measurement resource correspond one-to-one with the 2 * P channel measurement resources included in the second resource pair.

[0153] In a possible implementation, when the first interference measurement resource is measured, the measurement is performed using the received beam, spatial reception parameters, or QCL assumption of two channel measurement resources in the third resource pair, and the first interference measurement resource is an interference measurement resource corresponding to the third resource pair in at least one interference measurement resource.

[0154] According to a fourth aspect, a communication apparatus is disclosed. The communication apparatus may be a radio access network device or a module (e.g., a chip) in the radio access network device. The communication apparatus may include a transmitting unit configured to send first configuration information to a terminal device, the first configuration information including a plurality of channel measurement resources, the plurality of channel measurement resources corresponding to two groups of channel measurement resources, and a receiving unit configured to receive a first measurement result from the terminal device, the first measurement result including a joint channel measurement result, the joint channel measurement result being a channel measurement result of a first resource pair, the first resource pair including one or more resource pairs including two channel measurement resources, the two channel measurement resources respectively belonging to the two groups of channel measurement resources, and the joint channel measurement result including information about the first resource pair.

[0155] In a possible implementation, the first configuration information includes first indication information, which indicates a quantity N1 of channel measurement resources included in a first group of channel measurement resources in two groups of channel measurement resources, where N1 is an integer greater than or equal to 1.

[0156] In a possible implementation, the channel measurement resources included in the first group of channel measurement resources in the two groups of channel measurement resources are the first N1 channel measurement resources or the last N1 channel measurement resources in the plurality of channel measurement resources, and the channel measurement resources included in the second group of channel measurement resources in the two groups of channel measurement resources are channel measurement resources other than the N1 channel measurement resources in the plurality of channel measurement resources.

[0157] In a possible implementation, the first configuration information further includes second indication information, the second indication information indicates a first resource, and the first resource is one or more channel measurement resources used for single-channel measurement in a plurality of channel measurement resources.

[0158] In a possible implementation, the second indication information indicates a quantity M of channel measurement resources used for single-channel measurement in the channel measurement resources included in each of two groups of channel measurement resources, and M is an integer greater than or equal to 1.

[0159] In a possible implementation, the channel measurement resources used for single-channel measurement in each group of channel measurement resources are the first M channel measurement resources or the last M channel measurement resources in each group of channel measurement resources.

[0160] In a possible implementation, the second indication information is a first bitmap.

[0161] In a possible implementation, the first configuration information further includes third indication information, the third indication information indicates a second resource pair, the second resource pair is a resource pair used for joint channel measurement, and the second resource pair includes the first resource pair.

[0162] In a possible implementation, the third indication information is a second bitmap.

[0163] In a possible implementation, the first bitmap and the second bitmap are two parts of a third bitmap.

[0164] In a possible implementation, the (i - 1) * N2 + j)-th bit in the second bitmap or the (j - 1) *The (N1 + i)-th bit corresponds to a resource pair including the i-th channel measurement resource in the first group of channel measurement resources and the j-th channel measurement resource in the second group of channel measurement resources. N1 is the quantity of channel measurement resources included in the first group of channel measurement resources, and N2 is the quantity of channel measurement resources included in the second group of channel measurement resources.

[0165] In a possible implementation, when the frequency band used by the radio access network device is within FR2, different resource pairs in the second resource pair include different channel measurement resources.

[0166] In a possible implementation, the first configuration information further includes fourth indication information. The fourth indication information indicates a reporting mode, and the reporting mode includes at least a first mode and a second mode. The first mode reports one group of joint channel measurement results and one group of measurement results in at least one group of single channel measurement results. The second mode reports Y groups of joint channel measurement results and X groups of single channel measurement results. The value of Y is 1 or set by the radio access network device, and the value of X is set by the radio access network device.

[0167] In a possible implementation, the fourth indication information includes two options. When the fourth indication information is the first option, the fourth indication information indicates the first mode. When the fourth indication information is the second option, the fourth indication information indicates the second mode.

[0168] In a possible implementation, the reporting mode further includes a third mode, in which only single-channel measurement results are reported. The fourth indication information includes three options. When the fourth indication information is the first option, the fourth indication information indicates the first mode. When the fourth indication information is the second option, the fourth indication information indicates the second mode. When the fourth indication information is the third option, the fourth indication information indicates the third mode.

[0169] In a possible implementation, when the measurement method is single-channel measurement, the first configuration information does not include one or more of the following information, namely, the second indication information, the third indication information, and the fourth indication information.

[0170] In a possible implementation, the first measurement result further includes information about a second resource, and the second resource is the channel measurement resource to be reported in the first resource. The information about the second resource is any one of the local index of the second resource in the group of channel measurement resources corresponding to the second resource, the local index of the second resource in the channel measurement resource belonging to the first resource in the group of channel measurement resources corresponding to the second resource, and the index of the bit corresponding to the second resource in the first bitmap.

[0171] In a possible implementation, the information about the first resource pair is the index of the bit corresponding to the first resource pair in the second bitmap.

[0172] In a possible implementation, the first configuration information further includes at least one interference measurement resource. The quantity of the interference measurement resources in at least one interference measurement resource is equal to the sum of Q and P, and the type of the interference measurement resource is an NZP CSI-RS resource or a CSI-IM resource.

[0173] In a possible implementation, the first Q interference measurement resources in at least one interference measurement resource correspond one-to-one with the Q channel measurement resources included in the first resource, and the remaining P interference measurement resources in at least one interference measurement resource correspond one-to-one with the P resource pairs included in the second resource pair.

[0174] In a possible implementation, the first configuration information includes a second index, the second index includes second indication information and third indication information, the second index includes P+Q index values, Q is the quantity of channel measurement resources included in the first resource, and P is the quantity of resource pairs included in the second resource pair.

[0175] In a possible implementation, when the reporting mode is the first mode, the information about the second resource and the information about the first resource pair are represented using the same parameter or index. When the reporting mode is the second mode, the information about the second resource and the information about the first resource pair are represented using different parameters or indexes.

[0176] In a possible implementation, the first measurement result further includes a first field, and the first field indicates RI. When the first field includes one RI, the measurement result included in the first measurement result is a single-channel measurement result. When the first field indicates an RI combination including two RIs, the measurement result included in the first measurement result is a joint-channel measurement result.

[0177] In a possible implementation, the first configuration information further includes at least one interference measurement resource, the quantity of interference measurement resources in at least one interference measurement resource is equal to P which is equal to Q+2, and the type of interference measurement resource is an NZP CSI-RS resource, a CSI-IM resource, or another type of interference measurement resource. *

[0178] In a possible implementation, Q interference measurement resources in at least one interference measurement resource correspond one-to-one with Q channel measurement resources included in the first resource, and the remaining 2 * P interference measurement resources in at least one interference measurement resource correspond one-to-one with 2 * P channel measurement resources included in the second resource pair.

[0179] According to a fifth aspect, a communication device is disclosed. This communication device can be a terminal device or a module (e.g., a chip) in the terminal device. This communication device can include a processor, a memory, and a transceiver. The transceiver is configured to receive information from a communication device other than this communication device and output information to a communication device other than this communication device. When the processor executes a computer program stored in the memory, the processor can be enabled to perform a communication method according to any one of the first aspect or an implementation of the first aspect.

[0180] According to a sixth aspect, a communication device is disclosed. This communication device can be a radio access network device or a module (e.g., a chip) in the radio access network device. This communication device can include a processor, a memory, and a transceiver. The transceiver is configured to receive information from a communication device other than this communication device and output information to a communication device other than this communication device. When the processor executes a computer program stored in the memory, the processor can be enabled to perform a communication method according to any one of the second aspect or an implementation of the second aspect.

[0181] According to a seventh aspect, a communication system is disclosed. This communication system includes a communication device according to the fifth aspect or a communication device according to the sixth aspect.

[0182] According to an eighth aspect, a computer-readable storage medium is disclosed. This computer-readable storage medium stores a computer program or computer instructions, and when the computer program or computer instructions are executed, the communication method according to the foregoing aspect is implemented.

[0183] According to a ninth aspect, a chip is disclosed. This chip includes a processor configured to execute a program stored in a memory. When the program is executed, the chip is enabled to perform the foregoing method.

[0184] In a possible implementation, the memory is located outside the chip.

[0185] According to a tenth aspect, a computer program product is disclosed. This computer program product includes computer program code, and when the computer program code is executed, the foregoing communication method is performed.

Brief Description of the Drawings

[0186]

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Embodiments for Carrying Out the Invention

[0187] Embodiments of the present invention disclose a communication method and apparatus for improving the accuracy of channel measurement. The description will be provided in detail below.

[0188] First, in order to better understand the communication method and apparatus disclosed in the embodiments of the present invention, the network architecture used in the embodiments of the present invention will be described below. FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present application. As shown in FIG. 1, the network architecture may include at least one terminal device and at least one radio access network device. One radio access network device can simultaneously send information to one or more terminal devices. Multiple radio access network devices can simultaneously send information to one terminal device.

[0189] A terminal device, which may also be referred to as a UE, mobile station (MS), mobile terminal (MT), etc., is a device that provides voice and / or data connectivity to a user. The terminal device can be a handheld terminal, notebook computer, subscriber unit, cellular phone, smartphone, wireless data card, personal digital assistant (PDA) computer, tablet computer, wireless modem, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, machine type communication (MTC) terminal, wearable device (e.g., smartwatch, smartband, or pedometer), in-vehicle device (e.g., automobile, motorcycle, electric vehicle, airplane, ship, train, or high-speed railway), virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, smart home device (e.g., refrigerator, TV, air conditioner, or electricity meter), intelligent robot, workshop equipment, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, flying device (e.g., intelligent robot, hot air balloon, unmanned aerial vehicle, or airplane), or another device that can access the network.

[0190] A wireless access network device is a device deployed in a wireless access network to provide a wireless communication function to a terminal device. The wireless access network device may include various forms of base stations, such as macro base stations, micro base stations (also called small cells), relay stations, and access points. In systems using different wireless access technologies, the name of the wireless access network device may vary. For example, it may be a base transceiver station (BTS) in a global system for mobile communications (GSM) or code division multiple access (CDMA) network, an NB (NodeB) in wideband code division multiple access (WCDMA), and an eNB or eNodeB (evolved NodeB) in long term evolution (LTE). Alternatively, the wireless access network device may be a wireless controller in a cloud radio access network (CRAN) scenario. Alternatively, the wireless access network device may be a base station device in a future network (such as 6G) or a wireless access network device in a future evolved public land mobile network (PLMN). Alternatively, the wireless access network device may be a wearable device or an in-vehicle device. Alternatively, the wireless access network device may be a transmission and reception point (TRP).

[0191] Note that the network architecture shown in FIG. 1 is not limited to including only the wireless access network device and the terminal device shown in the figure.

[0192] First, in order to better understand the embodiments of the present invention, the related technologies in the embodiments of the present invention will be described below.

[0193] In a mobile communication system (for example, 5G), before a radio access network device performs data transmission, the terminal device needs to perform channel measurement to obtain channel information, thereby determining related parameters of data transmission such as the modulation order or coding bit rate. Channel measurement is a measurement procedure in the R15 protocol and is used to measure the channel state information (CSI) of a specific measurement resource. CSI may include a channel quality indicator (CQI), etc. Channel measurement may include downlink channel measurement and uplink channel measurement.

[0194] Downlink channel measurement may include the following steps.

[0195] 1. The radio access network device sends configuration information to the terminal device.

[0196] The radio access network device can send configuration information to the terminal device by using radio resource control (RRC) signaling. The configuration information may include resource configuration information and reporting configuration information. The resource configuration information is used to configure information related to measurement resources. In 3GPP (e.g., 38.331), the configuration can be performed by using a three-level structure, i.e., resourceConfig - resourceSet - resource. The radio access network device can configure one or more measurement resource configurations for the terminal device. Each measurement resource configuration may include one or more resource sets, and each resource set may include one or more measurement resources. Each resource configuration / resource set / measurement resource may include an index. In addition, each resource configuration / resource set / measurement resource may further include some other parameters such as the periodicity of the measurement resource and the signal type corresponding to the measurement resource. Each measurement resource may further include one or more antenna ports. resourceConfig (i.e., resource configuration) may be written as resourceSetting and may correspond to resourceConfigIE in RRC signaling. The measurement resources may include channel measurement resources and interference measurement resources.

[0197] The reporting configuration information is used to configure information related to measurement result reporting. In 3GPP (e.g., 38.331), the configuration can be performed by using the reporting configuration ReportConfig. The radio access network device may configure one or more reporting configurations ReportConfig for the terminal device. Each reporting configuration may include at least one reporting-related information such as a reporting indicator, a reporting time, a reporting periodicity, and a reporting format. In addition, the reporting configuration information further includes an index of the resource configuration indicating which reported measurement results are obtained through the measurement.

[0198] During channel measurement, the corresponding interference signal can be further measured. The interference signal can be measured by measuring interference measurement resources. The interference measurement resources and the channel measurement resources can be configured together for the terminal device and are configured separately in different resourceConfigs. For example, two resource configurations resourceConfig are configured in RRC signaling. One is used to configure the channel measurement resources and the other is used to configure the interference measurement resources. There are two types of interference measurement resources, namely, non-zero power (NZP) channel state information-reference signal (CSI-RS) resources, and channel state information-interference measurement (CSI-IM) resources.

[0199] The wireless access network device needs to further configure the beam information of each channel measurement resource for the terminal device so that the terminal device can determine the beam corresponding to each channel measurement resource and determine the reception beam that needs to be used to receive the reference signal. The beam information may be encapsulated in a transmission configuration index (TCI)-state, and each channel measurement resource may include one TCI-state indicating the beam information of the channel measurement resource. The beam information of the interference measurement resource does not need to be configured. Instead, the beam information of the channel measurement resource associated with the interference measurement resource is used by default. For example, when the CSI-IM resource is used as the interference measurement resource, the number of CSI-IM resources needs to be equal to the number of channel measurement resources, and the CSI-IM resources correspond one-to-one with the channel measurement resources. Each CSI-IM resource uses, by default, the beam of the channel measurement resource corresponding to the CSI-IM resource. The terminal device may receive the channel measurement resource and the CSI-IM resource via the same reception beam. When the NZP CSI-RS resource is used as the interference measurement resource, it is specified that only one channel measurement resource can be configured, and all NZP CSI-RS resources, that is, the interference measurement resources, use the beam of the channel measurement resource. One channel measurement resource may uniquely correspond to one transmission beam. The beam corresponding to the channel measurement resource may be understood as the transmission beam of the wireless access network device regarding the channel measurement resource.

[0200] The specific formats of the resource configuration information and the reporting configuration information in R15 (e.g., 38.331) are as follows. CSI-ResourceConfig ::= SEQUENCE { csi-ResourceConfigId CSI-ResourceConfigId, csi-RS-ResourceSetList CHOICE { nzp-CSI-RS-SSB-ResourceSetList SEQUENCE { nzp-CSI-RS-ResourceSetList SEQUENCE (SIZE (1..maxNrofNZP-CSI-RS-ResourceSetsPerConfig)) OF NZP-CSI-RS-ResourceSetId csi-SSB-ResourceSetList SEQUENCE (SIZE (1..maxNrofCSI-SSB-ResourceSetsPerConfig)) OF CSI-SSB-ResourceSetId }, csi-IM-ResourceSetList SEQUENCE (SIZE (1..maxNrofCSI-IM-ResourceSetsPerConfig)) OF CSI-IM-ResourceSetId }, bwp-Id BWP-Id, resourceType ENUMERATED { aperiodic, semiPersistent, periodic}, ... } CSI-ReportConfig ::= SEQUENCE { reportConfigId CSI-ReportConfigId, resourcesForChannelMeasurement CSI-ResourceConfigId, csi-IM-ResourcesForInterference CSI-ResourceConfigId nzp-CSI-RS-ResourcesForInterference CSI-ResourceConfigId reportQuantity CHOICE { ... }, groupBasedBeamReporting CHOICE { enabled NULL, disabled SEQUENCE { nrofReportedRS ENUMERATED {n1, n2, n3, n4} } }, }

[0201] CSI-ResourceConfig is a resource configuration, csi-ResourceConfigId is the index of the resource configuration, csi-RS-ResourceSetList is a resource set list, nzp-CSI-RS-SSB-ResourceSetList is a nzp-CSI-RS-synchronization signal block (SSB) resource set list, and csi-SSB-ResourceSetList is a csi- SSBIt is a resource set list. csi-IM-ResourceSetList is a csi-IM resource set list. CSI-IM-ResourceSetId is a csi-IM resource set identifier. bwp (bandwidth part)-Id is an identifier of a bandwidth block. resourceType is the time-domain transmission characteristic of a resource in a resource configuration. CSI-ReportConfig is a reporting configuration. reportConfigId is an index of the reporting configuration. resourcesForChannelMeasurement is a resource configuration used to measure channel information. csi-IM-ResourcesForInterference is a resource configuration used to measure interference information. All types of resources included in the resource configuration are csi-IM. nzp-CSI-RS-ResourcesForInterference is a resource configuration used to measure interference information. All types of resources included in the resource configuration are nzp-CSI-RS. reportQuantity is a parameter to be reported.

[0202] Correspondingly, the terminal device receives configuration information from the radio access network device.

[0203] 2. The radio access network device sends a reference signal regarding the resource configured by using the resource configuration information.

[0204] 3. The terminal device measures the reference signal based on the measurement configuration information.

[0205] The terminal device may determine the relevant parameters of the reference signal based on the configuration information. The relevant parameters of the reference signal are encapsulated in a resource information element (IE). One resource corresponds to one reference signal, and the resource may include the relevant parameters of the reference signal. The relevant parameters of the reference signal may include transmission periodicity, transmission time, signal type, transmission beam information, etc.

[0206] 4. The terminal device sends the measurement results to the radio access network device.

[0207] The measurement results may include one or more channel measurement resources and the indexes of the channel information corresponding to one or more channel measurement resources. The channel information may include CQI, channel rank indicator (RI), precoding matrix indicator (PMI), layer indicator (LI), etc.

[0208] It can be learned that the channel measurement can be understood as follows. The radio access network device sends a reference signal to the terminal device, and the terminal device determines the channel information by measuring the reference signal and reports the channel information to the radio access network device.

[0209] In conclusion, a wireless access network device may configure a plurality of channel measurement resources for a terminal device, and the plurality of channel measurement resources may correspond to a plurality of different transmission beams. Specifically, the wireless access network device may send a reference signal corresponding to all channel measurement resources via different transmission beams, and the terminal device may obtain channel information corresponding to each transmission beam through measurement. Alternatively, the plurality of channel measurement resources may correspond to a plurality of different TRPs. Specifically, the wireless access network device may send a reference signal corresponding to all channel measurement resources via different TRPs, and the terminal device may obtain channel information corresponding to each TRP through measurement. After measuring the plurality of channel measurement resources, the terminal device may select a channel measurement resource having the best channel quality and report the index of the channel measurement resource and the corresponding channel information to the wireless access network device, whereby the wireless access network device may communicate with the terminal device via the beam / TRP corresponding to the channel measurement resource and determine transmission parameters based on the channel information corresponding to the channel measurement resource. The measurement resource may sometimes be simply referred to as a resource. At high frequencies, one TRP corresponds to one transmission beam.

[0210] A TRP may be a wireless access network device or a part of a wireless access network device, such as a transceiver. For example, in a cell using a plurality of TRPs, the downlink signal in the cell is simultaneously sent to a terminal device via the plurality of TRPs. In this case, the plurality of TRPs may be regarded as a wireless access network device, or the plurality of TRPs may be regarded as a plurality of transmitters of the entire wireless access network device. In this application, two terms, namely, a wireless access network device and a TRP, are used to clearly explain the technology of the present invention. For the relationship between the two terms, please refer to the above definitions for understanding.

[0211] In addition to obtaining the channel information of each beam or each TRP separately (i.e., single-channel measurement), multiple TRPs can perform joint measurement (i.e., joint-channel measurement) to obtain the joint-channel information of multiple TRPs. The joint-channel information is used for multi-TRP joint measurement. Specifically, before the radio access network device needs to simultaneously transmit data to the terminal device via multiple TRPs, the radio access network device needs to obtain the joint-channel information of multiple TRPs. How to perform joint-channel measurement is an urgent technical problem to be solved.

[0212] Figure 2 is a schematic diagram of joint-channel measurement according to an embodiment of the present invention. As shown in Figure 2, the joint measurement is performed on channel H1 and channel H2.

[0213] The radio access network device may configure channel measurement resources for the terminal device. The channel measurement resources may include multiple ports. The ports may be divided into two parts, and each part may correspond to one TRP. Each port corresponds to one reference signal, and each TRP sends the reference signal corresponding to the port corresponding to the TRP. The terminal device can perform joint measurement on all ports to implement multi-TRP joint measurement (i.e., joint-channel measurement).

[0214] Figure 3 is another schematic diagram of joint-channel measurement according to an embodiment of the present invention. As shown in Figure 3, assume that one channel measurement resource includes two ports, port #1 corresponds to TRP1, and port #2 corresponds to TRP2. TRP1 sends the reference signal corresponding to port #1, and TRP2 sends the reference signal corresponding to port #2. The terminal device can measure the joint-channel information corresponding to the two TRPs by measuring the reference signals corresponding to the two ports.

[0215] However, in the high-frequency transmission scenario, both the data corresponding to the channel measurement resource and the reference signal need to be transmitted via a specific transmission beam. The transmission beam used for the channel measurement resource is configured by the radio access network device, that is, configured within the channel measurement resource as a parameter. Currently, only one transmission beam can be configured for one channel measurement resource. However, different ports of one channel measurement resource are sent by using different TRPs, and different TRPs use different transmission beams. Therefore, at least two transmission beams need to be configured for one channel measurement resource. Since at least two transmission beams cannot be configured for one channel measurement resource, the method for performing multi-TRP joint channel measurement by using one channel measurement resource cannot be applied to the high-frequency transmission scenario.

[0216] Based on the foregoing network architecture, FIG. 4 is a schematic flowchart of a communication method according to an embodiment of the present invention. As shown in FIG. 4, the communication method may include the following steps.

[0217] 401: The radio access network device sends first configuration information including a plurality of channel measurement resources to the terminal device.

[0218] Correspondingly, the terminal device receives the first configuration information from the radio access network device.

[0219] Before sending data to the terminal device, the radio access network device may first determine the first configuration information, and then send the first configuration information to the terminal device. The first configuration information may include a plurality of channel measurement resources, and the plurality of channel measurement resources may correspond to at least one group of channel measurement resources, that is, one or more groups of channel measurement resources.

[0220] The wireless access network device may determine the measurement method of the terminal device. The first configuration information may further include indication information indicating the measurement method. The measurement method may be single-channel measurement or joint-channel measurement. When the measurement method is single-channel measurement, a plurality of channel measurement resources correspond to one group of channel measurement resources, and the terminal device performs single-channel measurement. Correspondingly, the measurement result is a single-channel measurement result. When the measurement method is joint-channel measurement, a plurality of channel measurement resources correspond to at least two groups of channel measurement resources, and the terminal device performs joint-channel measurement. Correspondingly, the measurement result includes a joint-channel measurement result. When the measurement method is joint-channel measurement, the terminal device may further perform single-channel measurement. Correspondingly, the measurement result may further include a single-channel measurement result.

[0221] Single-channel measurement can be understood as measuring each channel measurement resource separately, determining the channel information corresponding to each channel measurement resource, and reporting the single-channel measurement result. The single-channel measurement result may include one or more of information regarding the channel measurement resource, RI, PMI, CQI, and LI. For example, channel measurement resources 1, 2, and 3 are measured separately to obtain the channel information of TRP 1, and channel measurement resources 4 and 5 are measured separately to obtain the channel information of TRP 2. Different channel measurement resources of the same TRP may correspond to different transmission beams, and when the TRP uses different transmission beams, they are used to measure the corresponding channel information. The terminal device may report the channel measurement resource with the best quality and the corresponding channel information in the channel measurement resources corresponding to the TRP, that is, report the single-channel measurement result with the best quality in the single-channel measurement result corresponding to the TRP. The information regarding the channel measurement resource may be information that can identify the channel measurement resource, such as the index or identifier of the channel measurement resource.

[0222] Joint channel measurement can be understood as combining channel measurement resources in different groups of channel measurement resources, then measuring each resource combination (or resource pair), determining channel information corresponding to each resource combination (or resource pair), and reporting joint channel measurement results. The joint channel measurement results may include one or more of information regarding the resource combination (or resource pair), RI, PMI, CQI, and LI. The information reported regarding the resource pair may be the index of the resource pair or the indices of the two channel measurement resources included in the resource pair. For example, a first group of channel measurement resources {1, 2, 3} and a second group of channel measurement resources {4, 5} may form six resource pairs {1, 4}, {2, 4}, {3, 4}, {1, 5}, {2, 5}, and {3, 5}. Each resource pair represents a corresponding joint channel that is used when two TRPs transmit through a specific transmission beam. The terminal device may report the resource pair having the best quality in the resource pair and the corresponding channel information, that is, report the group of joint channel measurement results having the best quality in the joint channel measurement results. When the joint channel measurement resources correspond to a resource pair, the group of reported joint channel measurement results may include information regarding the resource pair and one or more of RI, PMI, CQI, and LI corresponding to the two channel measurement resources included in the resource pair. The information regarding the resource combination (or resource pair) may be information that can identify the resource combination (or resource pair), for example, the index or identifier of the resource combination (or resource pair). It should be understood that two groups of channel measurement resources correspond to two TRPs, that is, one group of channel measurement resources is allocated to each TRP. Similarly, three groups of channel measurement resources correspond to three TRPs, by analogy.

[0223] When multiple channel measurement resources correspond to two groups of channel measurement resources, the resource combination may be referred to as a resource pair and may include two channel measurement resources belonging to the two groups of channel measurement resources. The resource combination may include at least two channel measurement resources belonging to at least two groups of channel measurement resources. The number of channel measurement resources included in the resource combination may be the number of groups of at least two groups of channel measurement resources, and the channel measurement resources included in the resource combination separately correspond to at least two groups of channel measurement resources. For example, the multiple channel measurement resources are resources 1, 2, 3, 4, 5, and 6, which are grouped into two groups of channel measurement resources. The first group of channel measurement resources is resources 1, 2, and 3, and the second group of channel measurement resources is resources 4, 5, and 6. The resource pairs may be {1, 4}, {1, 5}, {1, 6}, {2, 4}, {2, 5}, {2, 6}, {3, 4}, {3, 5}, and {3, 6}. As another example, the multiple channel measurement resources are resources 1, 2, 3, 4, 5, and 6, which are grouped into three groups of channel measurement resources. The first group of channel measurement resources is resources 1 and 2, the second group of channel measurement resources is resources 3 and 4, and the third group of channel measurement resources is resources 5 and 6. The resource combination may be {1, 3, 5}, {1, 3, 6}, {2, 3, 5}, {2, 3, 6}, {1, 4, 5}, {1, 4, 6}, {2, 4, 5}, and {2, 4, 6}.

[0224] It should be understood that the numbers 1, 2, 3, 4, 5, and 6 in channel measurement resources 1, 2, 3, 4, 5, and 6 are used to distinguish different channel measurement resources. These numbers may be information capable of distinguishing different channel measurement resources, such as identifiers, sequence numbers, or indexes of channel measurement resources, etc.

[0225] Optionally, the first configuration information may include a channel measurement resource set, and the channel measurement resource set may include a plurality of channel measurement resources. The plurality of channel measurement resources may correspond to at least one group of channel measurement resources, that is, the channel measurement resource set may include at least one group of channel measurement resources. Each of at least one group of channel measurement resources may correspond to one TRP, and each group of channel measurement resources may include one or more channel measurement resources used to measure the channels of the corresponding TRP. For example, assuming that the plurality of channel measurement resources correspond to two groups of channel measurement resources, and the radio access network device sets one channel measurement resource set {1, 2, 3, 4, 5}. The first group of channel measurement resources in the two groups of channel measurement resources may include {1, 2, 3}, that is, {1, 2, 3} are the channel measurement resources of TRP 1. The second group of channel measurement resources in the two groups of channel measurement resources may include {4, 5}, that is, {4, 5} are the channel measurement resources of TRP 2.

[0226] In one case, the radio access network device may determine the quantity N1 of the channel measurement resources included in the first group of the channel measurement resources among two groups of the channel measurement resources, and then may determine the first indication information based on N1. The first configuration information may further include the first indication information, and the first indication information may indicate the quantity N1 of the channel measurement resources included in the first group of the channel measurement resources among two groups of the channel measurement resources. The channel measurement resources included in the first group of the channel measurement resources among two groups of the channel measurement resources may be the first N1 channel measurement resources among the plurality of channel measurement resources, the last N1 channel measurement resources among the plurality of channel measurement resources, or N1 channel measurement resources selected by another method from the plurality of channel measurement resources. This is not limited in this specification. The N1 channel measurement resources, which are the N1 channel measurement resources among the plurality of channel measurement resources, may be set by default between the terminal device and the radio access network device, or may be set in the protocol, or may be indicated to the terminal device by the radio access network device. The channel measurement resources included in the second group of the channel measurement resources among two groups of the channel measurement resources may be the channel measurement resources other than the N1 channel measurement resources among the plurality of channel measurement resources. The first indication information may be N1, or may include information about N1, that is, N1 may be indicated by using one piece of information. In this specification, N1 is an integer greater than or equal to 1.

[0227] The wireless access network device may further determine the quantity N2 of the channel measurement resources included in the second group of the channel measurement resources in two groups of the channel measurement resources, and then may determine the first indication information based on N1 and N2. The first indication information may include N1 and N2, or may include information about N1 and information about N2, that is, the quantities of the channel measurement resources included in the two groups of the channel measurement resources are directly set. The values of N1 and N2 may be set by the wireless access network device based on requirements. The wireless access network device may set the values based on the ratio of the quantities of the beams on two TRPs. For example, when the ratio of the quantities of the beams on two TRPs is 2:1, N1 and N2 also need to be set to 2:1. The wireless access network device may also set the values based on other information. This is not limited in this specification. The sum of N1 and N2 is equal to the quantity of a plurality of channel measurement resources. When N1 is 0 or N, the plurality of channel measurement resources may correspond to one group of the channel measurement resources. When N1 is not 0 or N, the plurality of channel measurement resources may correspond to two groups of the channel measurement resources. Similarly, when N2 is 0 or N, the plurality of channel measurement resources may correspond to one group of the channel measurement resources. When N2 is not 0 or N, the plurality of channel measurement resources may correspond to two groups of the channel measurement resources. N is the sum of N1 and N2 and may be the quantity of the channel measurement resources in the plurality of channel measurement resources. The quantity of the channel measurement resources may be understood as the number of the channel measurement resources. When both N1 and N2 are set for the wireless access network device, N1 or N2 is an integer greater than or equal to 0 and less than or equal to N. However, in order to ensure the setting effectiveness and reduce unnecessary settings, the network device may set N2 only when two groups of the channel measurement resources are set. In this case, N1 or N2 may be an integer greater than 0 and less than N.

[0228] When a plurality of channel measurement resources correspond to A groups of channel measurement resources, the first indication information may include information regarding N1, N2, ..., and N A-1 (or N1, N2, ..., and N A-1 ), or may include information regarding N1, N2, ..., N A-1 , and N A (or N1, N2, ..., N A-1 , and N A ). A is an integer greater than or equal to 3. When the first indication information includes information regarding N1, N2, ..., and N A-1 , N i is the quantity of channel measurement resources included in the i-th group of channel measurement resources among the A groups of channel measurement resources, where i = 1, 2, ..., and A - 1, and the A-th group of channel measurement resources among the A groups of channel measurement resources is the channel measurement resources other than the i-th group of channel measurement resources among the plurality of channel measurement resources. When the first indication information includes information regarding N1, N2, ..., N A-1 , and N A , N i is the quantity of channel measurement resources included in the i-th group of channel measurement resources among the A groups of channel measurement resources, where i = 1, 2, ..., A - 1, and A.

[0229] In another case, the radio access network device may set a channel measurement resource subset based on a plurality of channel measurement resources. When a plurality of channel measurement resources correspond to one group of channel measurement resources, one channel measurement resource subset may be set, that is, the channel measurement resource set may include one channel measurement resource subset, that is, the first setting information may include one channel measurement resource subset.

[0230] When a plurality of channel measurement resources correspond to two groups of channel measurement resources, two channel measurement resource subsets may be set, that is, the channel measurement resource set may include two channel measurement resource subsets, that is, the first configuration information may include two channel measurement resource subsets. The two channel measurement resource subsets may respectively correspond to two groups of channel measurement resources (that is, two TRPs), that is, the two channel measurement resource subsets correspond one-to-one with the two groups of channel measurement resources. Each of the two channel measurement resource subsets may include one or more channel measurement resources among the plurality of channel measurement resources. The number of channel measurement resources included in the two channel measurement resource subsets is equal to the number of the plurality of channel measurement resources. The two channel measurement resource subsets cannot include the same channel measurement resource, that is, the two channel measurement resource subsets do not intersect.

[0231] When a plurality of channel measurement resources correspond to A groups of channel measurement resources, A channel measurement resource subsets may be set, that is, the channel measurement resource set may include A channel measurement resource subsets, that is, the first configuration information may include A channel measurement resource subsets. The A channel measurement resource subsets may respectively correspond to A groups of channel measurement resources, that is, the A channel measurement resource subsets correspond one-to-one with the A groups of channel measurement resources. Each of the A channel measurement resource subsets may include one or more channel measurement resources among the plurality of channel measurement resources. The number of channel measurement resources included in the A channel measurement resource subsets is equal to the number of the plurality of channel measurement resources. Any two of the A channel measurement resource subsets cannot include the same channel measurement resource, that is, any two channel measurement resource subsets do not intersect.

[0232] In another case, the radio access network device may establish an association relationship (or correspondence) between each of a plurality of channel measurement resources and the index value of a first index. When the plurality of channel measurement resources correspond to one group of channel measurement resources, the radio access network device may establish an association relationship (or correspondence) between each channel measurement resource in the group of channel measurement resources and the index value of the first index, that is, the index values of the first index corresponding to each channel measurement resource in the group of channel measurement resources are the same, that is, the same index value of the first index corresponds to all channel measurement resources in the group of channel measurement resources.

[0233] When the plurality of channel measurement resources correspond to two groups of channel measurement resources, the radio access network device may establish a correspondence between each of the plurality of channel measurement resources and each of two index values of the first index. One of the two index values of the first index may correspond to one or more of the plurality of channel measurement resources, but one channel measurement resource can only correspond to or be associated with one of the two index values of the first index and cannot correspond to or be associated with the two index values. The sum of the quantities of the channel measurement resources corresponding to the two index values is the quantity of the channel measurement resources in the plurality of channel measurement resources. The two index values of the first index respectively correspond to two groups of channel measurement resources, that is, the two index values correspond one-to-one with the two groups of channel measurement resources.

[0234] When a plurality of channel measurement resources correspond to A groups of channel measurement resources, the radio access network device may establish a correspondence between each of the plurality of channel measurement resources and each of A index values of a first index. One of the A index values may correspond to one or more of the plurality of channel measurement resources, but one channel measurement resource can only correspond to or be associated with one of the A index values and cannot correspond to or be associated with two index values. The sum of the quantities of the channel measurement resources corresponding to the A index values is the quantity of the channel measurement resources in the plurality of channel measurement resources. The A index values of the first index respectively correspond to the A groups of channel measurement resources, that is, the A index values correspond one-to-one with the A groups of channel measurement resources.

[0235] It should be understood that the first index may be the index of the TRP, or the index of the group of channel measurement resources, or another index. This is not limited in this specification.

[0236] In another case, the radio access network device may determine the quantity B of the groups of channel measurement resources. The first configuration information may include B or information regarding B. B is an integer greater than or equal to 1.

[0237] A wireless access network device may not indicate channel measurement resources that need to be measured by a terminal device on a single channel. When the measurement method is single-channel measurement, it may indicate that the terminal device needs to separately measure all channel measurement resources in a plurality of channel measurement resources. When the measurement method is joint-channel measurement, it may indicate that the terminal device needs to separately measure all channel measurement resources in a plurality of channel measurement resources. When the measurement method is joint-channel measurement, it may indicate that the terminal device does not need to separately measure all channel measurement resources in a plurality of channel measurement resources, or it may indicate that the terminal device needs to separately measure one of at least two groups of channel measurement resources, or it may indicate another meaning. This is not limited in this specification. The specific meaning may be determined based on the default settings between the wireless access network device and the terminal device.

[0238] Alternatively, the wireless access network device may indicate channel measurement resources that need to be measured by the terminal device on a single channel. Regardless of whether the measurement method is single-channel measurement or joint-channel measurement, the wireless access network device may indicate channel measurement resources that need to be measured by the terminal device on a single channel.

[0239] The wireless access network device may determine a first resource, where the first resource may be one or more channel measurement resources used for single-channel measurement in a plurality of channel measurement resources, that is, all channel measurement resources in a plurality of channel measurement resources that need to be measured by the terminal device on a single channel. Then, the wireless access network device may determine second indication information based on the first resource. The first setting information may include the second indication information, and the second indication information may indicate the first resource.

[0240] In one case, the second indication information may indicate the quantity M of channel measurement resources used for a single channel measurement in each of at least one group of channel measurement resources. The channel measurement resources used for a single channel measurement in each group of channel measurement resources may be the first M channel measurement resources in each group of channel measurement resources, the last M channel measurement resources in each group of channel measurement resources, any M channel measurement resources in each group of channel measurement resources, or M channel measurement resources selected by another method from each group of channel measurement resources. This is not limited in this specification. M is an integer greater than or equal to 1. When a plurality of channel measurement resources correspond to at least two groups of channel measurement resources, M needs to be greater than or equal to the minimum quantity of channel measurement resources in the quantity of channel measurement resources included in all of the at least two groups of channel measurement resources, so that each group of channel measurement resources has sufficient channel measurement resources for a single channel measurement. The second indication information can be learned to be able to indicate the channel measurement resources that need to be measured by the terminal device in the channel measurement resources included in each of at least two groups of channel measurement resources by using the value M or information about M.

[0241] For example, the first group of channel measurement resources is {1, 2, 3}, the second group of channel measurement resources is {4, 5}, and M is 2. The second indication information may indicate that the first two channel measurement resources 1 and 2 in the first group of channel measurement resources are the channel measurement resources that need to be measured, and the first two channel measurement resources {4, 5} in the second group of channel measurement resources are the channel measurement resources that need to be measured.

[0242] In another case, when a plurality of channel measurement resources correspond to at least two groups of channel measurement resources, the second indication information is the quantity M of the channel measurement resources used for a single channel measurement in the i-th group of channel measurement resources i may indicate. The M i channel measurement resources used for a single channel measurement in the i-th group of channel measurement resources are the first M i channel measurement resources in the i-th group of channel measurement resources, the last M i channel measurement resources in the i-th group of channel measurement resources, any M i channel measurement resources in the i-th group of channel measurement resources, or M i channel measurement resources selected by another method from the i-th group of channel measurement resources. This is not limited in this specification. M i is an integer greater than or equal to 0 and less than or equal to the quantity of the channel measurement resources included in the i-th group of channel measurement resources, where i = 2, 3,..., and is the quantity of the groups of channel measurement resources.

[0243] In another case, the second indication information may be a first bitmap. The number of bits included in the first bitmap is equal to the number of channel measurement resources among the plurality of channel measurement resources, and one bit in the first bitmap indicates whether a single channel measurement needs to be performed for one of the plurality of channel measurement resources. That is, the bits in the first bitmap correspond one-to-one with the plurality of channel measurement resources, that is, each bit in the first bitmap corresponds to one channel measurement resource. For example, when the value of a bit is 1, it may indicate that the channel measurement resource corresponding to that bit needs to be measured, or when the value of the bit is 0, it may indicate that the channel measurement resource corresponding to that bit does not need to be measured. As another example, when the value of a bit is 0, it may indicate that the channel measurement resource corresponding to that bit needs to be measured, or when the value of the bit is 1, it may indicate that the channel measurement resource corresponding to that bit does not need to be measured. The mapping relationship between the bits in the first bitmap and the channel measurement resources may be such that the i-th channel measurement resource in the channel measurement resource set corresponds to the i-th bit in the first bitmap. For example, channel measurement resources 1, 2, 3, 4, and 5 in the channel measurement resource set may be indicated by using a 5-bit bitmap.

[0244] In another case, when a plurality of channel measurement resources correspond to at least two groups of channel measurement resources, the second indication information may include at least two bitmaps. The radio access network device may use at least two bitmaps to respectively indicate the channel measurement resources that need to be separately measured by the terminal device in at least two groups of channel measurement resources, and each bitmap corresponds to one group of channel measurement resources. Each bit in the bitmap corresponds to one channel measurement resource. For example, if the value of the bit is 1, it may indicate that the channel measurement resource corresponding to that bit needs to be measured, or if the value of the bit is 0, it may indicate that the channel measurement resource corresponding to that bit does not need to be measured. As another example, if the value of the bit is 0, it may indicate that the channel measurement resource corresponding to that bit needs to be measured, or if the value of the bit is 1, it may indicate that the channel measurement resource corresponding to that bit does not need to be measured. The mapping relationship between the bitmap and the channel measurement resources may be that a specific channel measurement resource in a group of channel measurement resources corresponds to a specific bit in the corresponding bitmap. For example, the first group of channel measurement resources 1, 2, and 3 may be indicated by using a 3-bit bitmap, and the second group of channel measurement resources 4, 5 may be indicated by using a 2-bit bitmap.

[0245] When the measurement method is joint channel measurement, the radio access network device does not need to indicate the resource combination (or resource pair) for which the terminal device needs to perform joint channel measurement. In this case, it may indicate that the terminal device needs to jointly measure all resource combinations (or resource pairs) including at least two groups of channel measurement resources.

[0246] When the measurement method is joint channel measurement, the radio access network device may alternatively indicate a resource combination (or resource pair) that needs to be measured by the terminal device for joint channel measurement. When multiple channel measurement resources correspond to two groups of channel measurement resources, the radio access network device may first determine a second resource pair that needs to be measured by the terminal device, and then determine third indication information based on the second resource pair. The first configuration information may include the third indication information, the third indication information indicates the second resource pair, and the second resource pair is the resource pair used for joint channel measurement. The second resource pair may include one or more resource pairs, and the number of resource pairs included in the second resource pair is 1 or more and may be less than or equal to the total number of all resource pairs including the first group of channel measurement resources and the second group of channel measurement resources.

[0247] When multiple channel measurement resources correspond to at least three groups of channel measurement resources, the radio access network device may first determine a resource combination that needs to be measured by the terminal device, and then determine third indication information based on the determined resource combination. The first configuration information may include the third indication information, the third indication information indicates the determined resource combination, and the determined resource combination is the resource combination used for joint channel measurement. The determined resource combination may include one or more resource combinations, and the number of resource combinations included in the determined resource combination is 1 or more and may be less than or equal to the total number of all resource combinations including at least three groups of channel measurement resources.

[0248] The third indication information may be a second bitmap. Specifically, the radio access network device may indicate a resource pair (or resource combination) that needs to be measured by using a bitmap. Each bit in the second bitmap may correspond to one resource pair (or resource combination). For example, if the value of the bit is 1, it may indicate that the terminal device needs to measure the corresponding resource pair (or resource combination), or if the value of the bit is 0, it may indicate that the terminal device does not need to measure the corresponding resource pair (or resource combination). As another example, if the value of the bit is 0, it may indicate that the terminal device needs to measure the corresponding resource pair (or resource combination), or if the value of the bit is 1, it may indicate that the terminal device does not need to measure the corresponding resource pair (or resource combination). When a plurality of channel measurement resources correspond to two groups of channel measurement resources, the correspondence between the bits in the second bitmap and the resource pairs is such that the ((i - 1) * N2 + j)-th bit in the second bitmap corresponds to a resource pair including the i-th channel measurement resource in the first group of channel measurement resources and the j-th channel measurement resource in the second group of channel measurement resources, or the ((j - 1)*N1 + i)-th bit in the second bitmap corresponds to a resource pair including the i-th channel measurement resource in the first group of channel measurement resources and the j-th channel measurement resource in the second group of channel measurement resources. N1 is the number of channel measurement resources included in the first group of channel measurement resources, and N2 is the number of channel measurement resources included in the second group of channel measurement resources. A resource pair includes two channel measurement resources, and the two channel measurement resources belong to two groups of channel measurement resources respectively.

[0249] When the frequency band used by a radio access network device is within frequency range (FR) 2, different resource pairs in the second resource pair include different channel measurement resources. That is, any two resource pairs in the second resource pair cannot include a common channel measurement resource. That is, one channel measurement resource cannot appear simultaneously in two resource pairs that need to be measured. That is, when the frequency band used by a radio access network device is within FR 2, different resource pairs to be measured cannot include the same channel measurement resource. For example, if both resource pairs {1, 4} and {1, 5} include the same channel measurement resource 1, the radio access network device cannot indicate to the terminal device to measure the two resource pairs. If resource pairs {1, 4} and {2, 5} do not include a common channel measurement resource, the radio access network device may indicate to the terminal device to measure the two resource pairs. Alternatively, when the frequency band used by a radio access network device is within FR 2, the number of resource pairs included in the second resource pair cannot exceed 1, that is, only one resource pair can be measured. In this way, it is possible to avoid the case where multiple resource pairs that need to be measured include the same channel measurement resource.

[0250] The first bitmap and the second bitmap can be two parts of a third bitmap. It can be learned that a radio access network device can indicate a channel measurement resource and a resource pair (or resource combination) that needs to be measured by a terminal device by using the bitmap. In the bitmap, some bits can indicate the channel measurement resources that need to be measured, and other bits can indicate the resource pair (or resource combination) that needs to be measured. The bits indicating the channel measurement resources can be arranged before the bits indicating the resource pair (or resource combination). Alternatively, the bits indicating the channel measurement resources can be arranged after the bits indicating the resource pair (or resource combination). For the correspondence between the bits in the bitmap and each of the channel measurement resources and the resource pair (or resource combination), please refer to the relevant description above.

[0251] When the measurement method is joint channel measurement, the radio access network device can determine a reporting mode for the terminal device, and then determine fourth indication information based on the reporting mode. The first configuration information can further include the fourth indication information, and the fourth indication information indicates the reporting mode. The reporting mode can include a first mode and a second mode.

[0252] The first mode is for reporting one group of joint channel measurement results and one group of channel measurement results in at least one group of single channel measurement results. When the reporting mode is the first mode, it can be learned that only one of the joint channel measurement results and the single channel measurement results needs to be reported, and only one group of measurement results needs to be reported. For example, a radio access network device may set two groups of channel measurement resources for a terminal device, and based on the two groups of channel measurement resources, determine three groups of measurement results, namely, one group of joint measurement results (for example, the measurement results corresponding to the resource pair with the best quality) and two groups of single channel measurement results (for example, corresponding to the channel measurement resources with the best quality and the measurement results determined in each of the two groups of channel measurement resources). The joint channel measurement results can be understood as the results of joint channel measurement, and the single channel measurement results can be understood as the results of single channel measurement.

[0253] The second mode may be to report Y groups of joint channel measurement results and X groups of single channel measurement results. The value of Y may be 1 by default, or a value set by the radio access network device, for example, it may be 0 or 1. This is not limited in this specification. Whether to report the single channel measurement results and the quantity of groups of single channel measurement results to be reported depends on the value of X. The value of X can be set by the radio access network device. The value of X may be 0, 1, 2, or another value. If X is 0, it indicates that the single channel measurement results need not be reported. If X is 1, it indicates that one group of single channel measurement results needs to be reported. If X is 2, it indicates that two groups of single channel measurement results need to be reported, that is, two groups of measurement results in the single channel measurement results corresponding to at least two groups of channel measurement resources should be reported, and the two groups of channel measurement resources corresponding to the two groups of single channel measurement results belong to two different groups of channel measurement resources respectively. The upper limit value of X is reported by the terminal device to the radio access network device. The upper limit value of X can be reported by the terminal device to the radio access network device in the process where the terminal device reports the capability information. The upper limit value of X can be determined by the terminal device based on the capability information of the terminal device.

[0254] In one case, when the reporting mode includes only the first mode and the second mode, the radio access network device may set two options for the fourth indication information, that is, the fourth indication information may include two options. When the reporting mode is the first mode, the radio access network device may set the fourth indication information for the first option. When the reporting mode is the second mode, the radio access network device may set the fourth indication information for the second option.

[0255] In another case, the reporting mode may further include a third mode, and the third mode may be to report only the single-channel measurement result. When the reporting mode is the third mode, the radio access network device sets only one group of channel measurement resources for the terminal device, and the terminal device needs to perform only single-channel measurement. The radio access network device may set three options for the fourth indication information, that is, the fourth indication information may include three options. When the reporting mode is the first mode, the radio access network device may set the fourth indication information for the first option. When the reporting mode is the second mode, the radio access network device may set the fourth indication information for the second option. When the reporting mode is the third mode, the radio access network device may set the fourth indication information for the third option.

[0256] The first configuration information may further include first reporting configuration information. The first reporting configuration information may include parameters such as cqi-FormatIndicator, pmi-FormatIndicator, csi-ReportingBand, codebookConfig, CQI-table, non-PMI-PortIndication, subbandSize, and aperiodicTriggeringOffset. In the original standard, these parameters are the parameters used for single-channel measurement. When these parameters in the first reporting configuration information need to be retained when the measurement method is joint-channel measurement, the meaning and quantity of these parameters need to be redesigned.

[0257] In one case, for any one of these parameters, the value of this parameter can be identified as applicable to joint channel measurements, that is, applicable to channel measurements of at least two groups of channel measurement resources. For example, when the value of cqi-FormatIndicator is set as wideband CQI, the wideband is used for the CQI in the measurement results corresponding to at least two groups of channel measurement resources.

[0258] In another case, for any one of these parameters, at least one same parameter may be added, that is, the quantity of each parameter is increased to at least two, and each of the at least two parameters may correspond to the channel measurement of one TRP, or each of the at least two parameters may correspond to the channel measurement of one of at least two groups of channel measurement resources.

[0259] The radio access network device may explicitly indicate the measurement method or may implicitly indicate the measurement method.

[0260] When a plurality of channel measurement resources correspond to at least one group of channel measurement resources, in one case, the radio access network device may indicate a measurement method by using first indication information, that is, the first indication information may further indicate the measurement method. For example, when N1 is 0, the first indication information may indicate that the measurement method is single-channel measurement. When N1 exceeds 0, the first indication information may indicate that the measurement method is joint-channel measurement. In this case, N1 needs to be less than N. As another example, when N1 is 0 or N, the first indication information may indicate that the measurement method is single-channel measurement. When N1 is greater than 0 and less than N, the first indication information may indicate that the measurement method is joint-channel measurement. As another example, when N2 is 0 or N, the first indication information may indicate that the measurement method is single-channel measurement. When N2 is greater than 0 and less than N, the first indication information may indicate that the measurement method is joint-channel measurement.

[0261] In another case, the radio access network device may indicate a measurement method by using the quantity of a subset of channel measurement resources. When the first configuration information includes one subset of channel measurement resources, it may indicate that the measurement method is single-channel measurement. When the first configuration information includes a plurality of subsets of channel measurement resources, it may indicate that the measurement method is joint-channel measurement.

[0262] In still another case, the radio access network device may indicate a measurement method by using the quantity of groups of channel measurement resources. When B is 1, or when the first configuration information does not include the quantity of groups of channel measurement resources (or information regarding the quantity of groups), it may indicate that the measurement method is single-channel measurement. When B is greater than 1, it may indicate that the measurement method is joint-channel measurement.

[0263] In another case, the radio access network device may indicate whether the channel measurement resource set includes at least two groups of channel measurement resources by using one parameter. The first configuration information may include this parameter. For example, when multiple channel measurement resources correspond to two groups of channel measurement resources, this parameter may indicate whether the channel measurement resource set includes a second group of channel measurement resources (channel measurement resources / channel measurement resource group of the second TRP). For example, when this parameter is 1, it may indicate that the measurement method is joint channel measurement. When this parameter is 0, or not configured, it may indicate that the measurement method is single channel measurement. As another example, when this parameter is 0, it may indicate that the measurement method is joint channel measurement. When this parameter is 1, or not configured, it may indicate that the measurement method is single channel measurement.

[0264] In another case, the radio access network device may configure the measurement method by using one parameter. This parameter may include at least two options. When the measurement method is single channel measurement, the radio access network device may configure this parameter for the first option. When the measurement method is joint channel measurement, the radio access network device may configure this parameter for the second option. This parameter may alternatively include one option. When the measurement method is joint channel measurement, the radio access network device may configure this parameter. When the measurement method is single channel measurement, the radio access network device may not configure this parameter.

[0265] In another case, the radio access network device may indicate the measurement method by using the first reporting configuration information. When the measurement method is joint channel measurement, the radio access network device may set the first configuration information to include a plurality of (i.e., two or more) first parameters. That is, when a plurality of (i.e., two or more) first parameters are included, it indicates that joint channel measurement is performed. When the measurement method is single channel measurement, the radio access network device may set the first configuration information to include one first parameter. That is, when a single first parameter is included, it indicates that single channel measurement is performed. The first parameter may include one or more of cqi-FormatIndicator, pmi-FormatIndicator, csi-ReportingBand, codebookConfig, CQI-table, non-PMI-PortIndication, subbandSize, and aperiodicTriggeringOffset.

[0266] In another case, the radio access network device may indicate the measurement method by using the reportQuantity parameter. When the measurement method is joint channel measurement, the radio access network device may set the value of the parameter reportQuantity to one or some special values. When the measurement method is single channel measurement, the radio access network device may set the value of the parameter reportQuantity to a value other than the aforementioned values. One or some of the aforementioned special values may be values used exclusively for joint channel measurement. When the measurement method is single channel measurement, the radio access network device does not set the value of the parameter reportQuantity to these values.

[0267] In another case, when the measurement method is joint channel measurement, the radio access network device may set one or more of the second indication information, the third indication information, and the fourth indication information.

[0268] The radio access network device may set interference measurement resources for the terminal device to perform interference measurement. The first configuration information may further include at least one interference measurement resource.

[0269] Each channel measurement resource to be measured may correspond to one interference measurement resource. Each resource pair (or resource combination) to be measured may correspond to one interference measurement resource, or each resource pair (or resource combination) to be measured may correspond to C interference measurement resources. C is the quantity of channel measurement resources included in the resource pair (or resource combination), and the C channel measurement resources included in the resource pair (or resource combination) correspond one-to-one with the C interference measurement resources.

[0270] In one case, the radio access network device may determine the amount of interference measurement resources based on the amount of channel measurement resources that need to be measured and the amount of resource pairs (or the amount of resource combinations) that need to be measured. The radio access network device may determine the amount of channel measurement resources used for single-channel measurement. The radio access network device may further determine the amount of resource pairs (or the amount of resource combinations) that need to be measured. Then, the radio access network device may determine the sum of the amount of channel measurement resources used for single-channel measurement and the amount of resource pairs (or the amount of resource combinations) that need to be measured as the amount of interference measurement resources. The first configuration information may further include interference measurement resources, and the amount thereof is the amount of interference measurement resources. The channel measurement resources used for single-channel measurement and the resource pairs (or resource combinations) that need to be measured correspond one-to-one with the interference measurement resources, that is, the channel measurement resources used for single-channel measurement correspond one-to-one with some interference measurement resources, and the resource pairs (or resource combinations) that need to be measured correspond one-to-one with the other interference measurement resources.

[0271] For example, when the first setting information includes second indication information and third indication information, the radio access network device may determine the quantity Q of channel measurement resources included in the first resource. The radio access network device may further determine the quantity P of resource pairs included in the second resource pair. Then, the radio access network device may determine Q+P as the quantity of interference measurement resources. In this case, the first setting information may further include Q+P interference measurement resources. The Q+P interference measurement resources correspond one-to-one with Q channel measurement resources and P resource pairs (or resource combinations). For example, the first Q interference measurement resources among the Q+P interference measurement resources may correspond one-to-one with the Q channel measurement resources included in the first resource, and the last P interference measurement resources (i.e., the remaining P interference measurement resources) among the Q+P interference measurement resources may correspond one-to-one with the P resource pairs included in the second resource pair. As another example, the first P interference measurement resources among the Q+P interference measurement resources may correspond one-to-one with the P resource pairs included in the second resource pair, and the last Q interference measurement resources among the Q+P interference measurement resources may correspond one-to-one with the Q channel measurement resources included in the first resource.

[0272] In another case, the radio access network device may determine the amount of interference measurement resources based on the amount of configured channel measurement resources and the amount of configured resource pairs (or the amount of configured resource combinations). The radio access network device may determine the amount of channel measurement resources included in a plurality of channel measurement resources, i.e., the amount of channel measurement resources. The radio access network device may further determine the amount of all resource pairs (or the amount of all resource combinations), including at least two groups of channel measurement resources corresponding to the plurality of channel measurement resources, i.e., the amount of all resource pairs (or the amount of all resource combinations). Then, the radio access network device may determine the sum of the amount of channel measurement resources included in the plurality of channel measurement resources and the amount of all resource pairs (or the amount of all resource combinations) as the amount of interference measurement resources. The first configuration information may further include interference measurement resources, and the amount thereof is the amount of interference measurement resources. The plurality of channel measurement resources and all resource pairs (or all resource combinations) correspond one-to-one with the interference measurement resources, i.e., the plurality of channel measurement resources correspond one-to-one with some interference measurement resources, and all resource pairs (or all resource combinations) correspond one-to-one with other interference measurement resources.

[0273] For example, the channel measurement resource set is {1, 2, 3, 4, 5}, and the channel measurement resources 1, 2, 3, 4, and 5 correspond to the first group of channel measurement resources {1, 2, 3} and the second group of channel measurement resources {4, 5}. The radio access network device may determine the quantity 5 of the channel measurement resources included in the channel measurement resource set. The radio access network device may further determine the quantity 6 of resource pairs including the first group of channel measurement resources {1, 2, 3} and the second group of channel measurement resources {4, 5}. Then, the radio access network device may determine that the quantity of interference measurement resources (i.e., the quantity of interference measurement resources) is 11 (i.e., 5 + 6). The radio access network device may set 11 interference measurement resources for the terminal device, that is, the first configuration information may include 11 interference measurement resources. The channel measurement resources 1, 2, 3, 4, and 5 correspond one-to-one to 5 of the 11 interference measurement resources, which may be the first 5 interference measurement resources among the 11 interference measurement resources, the last 5 interference measurement resources among the 11 interference measurement resources, or 5 interference measurement resources determined by another method among the 11 interference measurement resources. The 6 resource pairs including the two groups of channel measurement resources correspond one-to-one to 5 of the 11 interference measurement resources, which may be the first 6 interference measurement resources among the 11 interference measurement resources, the last 6 interference measurement resources among the 11 interference measurement resources, or 6 interference measurement resources determined by another method among the 11 interference measurement resources.

[0274] Each channel measurement resource that needs to be measured may correspond to one interference measurement resource, and each channel measurement resource in each resource pair (or resource combination) that needs to be measured may correspond to one interference measurement resource. It should be understood that the same interference measurement resource does not exist in the interference measurement resource, that is, the interference measurement resource corresponding to the channel measurement resource used for single-channel measurement is different from the interference measurement resource corresponding to the channel measurement resource used for joint-channel measurement.

[0275] In one case, the radio access network device may determine the quantity of channel measurement resources used for single-channel measurement. The radio access network device may further determine the quantity of resource pairs (or the quantity of resource combinations) that need to be measured. The radio access network device may multiply the quantity of resource pairs (or resource combinations) that need to be measured by C, then add the quantity of channel measurement resources used for single-channel measurement, and determine the addition result as the quantity of interference measurement resources. C is equal to the quantity of channel measurement resources included in the resource pair (or resource combination). For example, when multiple channel measurement resources correspond to two groups of channel measurement resources, C = 2. When multiple channel measurement resources correspond to three groups of channel measurement resources, C = 3. The first configuration information may further include interference measurement resources, and the quantity thereof is the quantity of interference measurement resources. The channel measurement resources used for single-channel measurement correspond one-to-one with the interference measurement resources. Each resource pair (or resource combination) that needs to be measured corresponds to C interference measurement resources, and the C channel measurement resources in the resource pair (or resource combination) correspond one-to-one with the C interference measurement resources. The correspondence between each resource pair (or resource combination) and the multiple interference measurement resources corresponding to the resource pair (or resource combination) may be determined based on the configuration sequence of the multiple interference measurement resources. For example, the first resource pair corresponds to the first interference measurement resource and the second interference measurement resource among the multiple interference measurement resources, the second resource pair corresponds to the third interference measurement resource and the fourth interference measurement resource among the multiple interference measurement resources, and so on.

[0276] For example, when the first setting information includes the second indication information and the third indication information, the radio access network device may determine the quantity Q of the channel measurement resources included in the first resource. The radio access network device may further determine the quantity P of the resource pairs included in the second resource pair. Then, the radio access network device may determine Q + 2 * P as the quantity of the interference measurement resources. In this case, the first setting information may further include Q + 2 * P interference measurement resources. The Q + 2 * P interference measurement resources are in one-to-one correspondence with the Q channel measurement resources included in P resource pairs (or resource combinations) and 2 * P channel measurement resources. For example, the first Q interference measurement resources among the Q + 2 * P interference measurement resources may be in one-to-one correspondence with the Q channel measurement resources included in the first resource, and the last 2 * P interference measurement resources (i.e., the remaining 2 * P interference measurement resources) among the Q + 2 * P interference measurement resources may be in one-to-one correspondence with the P resource pairs included in the second resource pair, that is, in one-to-one correspondence with the 2 * P channel measurement resources in the P resource pairs included in the second resource pair. As another example, the first 2 * P interference measurement resources among the Q + 2 * P interference measurement resources may be in one-to-one correspondence with the P resource pairs included in the second resource pair, that is, in one-to-one correspondence with the 2 * P channel measurement resources in the P resource pairs included in the second resource pair. The last Q interference measurement resources among the Q + 2 * P interference measurement resources may be in one-to-one correspondence with the Q channel measurement resources included in the first resource.

[0277] In another case, the wireless access network device may determine the quantity of channel measurement resources included in a plurality of channel measurement resources. The wireless access network device may further determine the quantity of all resource pairs (or the quantity of all resource combinations) including at least two groups of channel measurement resources corresponding to the plurality of channel measurement resources. The wireless access network device may multiply the quantity of all resource pairs (or the quantity of all resource combinations) by C, then perform addition with the quantity of channel measurement resources, and determine the addition result as the quantity of interference measurement resources. The first configuration information may further include interference measurement resources, and the quantity thereof is the quantity of interference measurement resources. Each channel measurement resource corresponds one-to-one with an interference measurement resource. Each resource pair (or resource combination) corresponds to C interference measurement resources, and the C channel measurement resources in the resource pair (or resource combination) correspond one-to-one with the C interference measurement resources. For other detailed descriptions, please refer to the foregoing related descriptions.

[0278] For example, the channel measurement resource set is {1, 2, 3, 4, 5}, and the channel measurement resources 1, 2, 3, 4, and 5 correspond to the first group {1, 2, 3} of channel measurement resources and the second group {4, 5} of channel measurement resources. The wireless access network device may determine the quantity 5 of channel measurement resources included in the channel measurement resource set. The wireless access network device may further determine the quantity 6 of resource pairs including the first group {1, 2, 3} of channel measurement resources and the second group {4, 5} of channel measurement resources. Then, the wireless access network device may determine that the quantity of interference measurement resources is 17 (i.e., 5 + 2 *It can be determined to be (6). The radio access network device can set 17 interference measurement resources for the terminal device, that is, the first setting information may include 17 interference measurement resources. Channel measurement resources 1, 2, 3, 4, and 5 correspond one-to-one with 5 interference measurement resources among the 17 interference measurement resources, which may be the first 5 interference measurement resources among the 17 interference measurement resources, the last 5 interference measurement resources among the 17 interference measurement resources, or 5 interference measurement resources determined by another method among the 17 interference measurement resources. Six resource pairs including two groups of channel measurement resources correspond to 12 interference measurement resources among the 17 interference measurement resources, which may be the first 12 interference measurement resources among the 17 interference measurement resources, the last 12 interference measurement resources among the 17 interference measurement resources, or 12 interference measurement resources determined by another method among the 17 interference measurement resources.

[0279] One resource pair (or resource combination) may correspond to one interference measurement resource, and it can be learned that the interference information of each channel measurement resource in the resource pair can be measured by using the interference measurement resource. Alternatively, one resource pair (or resource combination) may correspond to C interference measurement resources. The C interference measurement resources correspond one-to-one with the C channel measurement resources in the resource pair, and the interference information of each channel measurement resource in the resource pair is measured by using each interference measurement resource. Which of the above two methods is specifically used can be determined by the radio access network device, and then can be set for the terminal device by using the setting information, or can be determined by the terminal device and then reported to the radio access network device by the terminal device. For example, the terminal device can report in the process of reporting the capability information of the terminal device.

[0280] In another case, the radio access network device may determine a channel measurement resource used for single-channel measurement and a resource pair (or resource combination) used for joint-channel measurement. It is assumed that the channel measurement resources included in the channel measurement resource used for single-channel measurement and the resource pair (or resource combination) used for joint-channel measurement include a total of D different channel measurement resources. The radio access network device needs to set D interference measurement resources, and the D channel measurement resources correspond one-to-one with the D interference measurement resources.

[0281] For example, the channel measurement resource set is {1, 2, 3, 4, 5}, and the channel measurement resources 1, 2, 3, 4, and 5 correspond to the first group of channel measurement resources {1, 2, 3} and the second group of channel measurement resources {4, 5}. The channel measurement resources used for single-channel measurement are channel measurement resources 1, 2, and 4. The resource pairs used for joint-channel measurement are resource pairs {1, 4} and {2, 5}. The channel measurement resources included in the channel measurement resources used for single-channel measurement and the resource pairs used for joint-channel measurement include a total of four different channel measurement resources 1, 2, 4, and 5. Therefore, the radio access network device needs to set four interference measurement resources, which correspond one-to-one with the four channel measurement resources.

[0282] When one channel measurement resource is associated with one interference measurement resource, the terminal device needs to measure the interference measurement resource through the reception beam of the channel measurement resource. When one resource pair (or resource combination) is associated with one interference measurement resource, the terminal device needs to measure the interference measurement resource through the reception beams of the multiple channel measurement resources included in the resource pair, for example, it is necessary to measure the interference measurement resource simultaneously through the reception beams of the multiple channel measurement resources. When one resource pair (or resource combination) is associated with C interference measurement resources, that is, when the C channel measurement resources included in the resource pair correspond one-to-one with the C interference measurement resources, each of the C interference measurement resources is measured through the reception beam of the channel measurement resource associated with the interference measurement resource. The information related to the reception beam of the channel measurement resource is set in the configuration information.

[0283] Each channel measurement resource in the resource pair (or resource combination) has a corresponding reception beam. When the resource pair (or resource combination) is measured, each channel measurement resource in the resource pair (or resource combination) needs to be received simultaneously through the reception beams corresponding to all the channel measurement resources in the resource pair (or resource combination). This measurement method can be referred to as resource pair (or resource combination) measurement method 1. For example, the reception beams of the resource pair {1, 2} may be reception beam 1 and reception beam 2. When measuring channel measurement resource 1, the terminal device needs to simultaneously receive and measure the reference signal corresponding to channel measurement resource 1 through reception beam 1 and reception beam 2. Similarly, when measuring channel measurement resource 2, the terminal device needs to simultaneously receive and measure the reference signal corresponding to channel measurement resource 2 through reception beam 1 and reception beam 2.

[0284] When a resource pair (or resource combination) is measured, any channel measurement resource in the resource pair (or resource combination) can be measured only through the reception beam corresponding to that channel measurement resource, that is, the channel measurement resource is measured without the reception beam of another channel measurement resource in the resource pair (or resource combination). This measurement method can be referred to as resource pair (or resource combination) measurement method 2.

[0285] Which of resource pair (or resource combination) measurement method 1 and resource pair (or resource combination) measurement method 2 is specifically used can be set by a radio access network device. The network device can set whether to use resource pair (or resource combination) measurement method 1 and whether to use resource pair (or resource combination) measurement method 2, or can set which of resource pair (or resource combination) measurement method 1 and resource pair (or resource combination) measurement method 2 is used. As an alternative, which of resource pair (or resource combination) measurement method 1 and resource pair (or resource combination) measurement method 2 is specifically used may be reported by a terminal device. For example, the terminal device can report in the process of reporting the capability information of the terminal device. The terminal device can report whether to use resource pair (or resource combination) measurement method 1 and whether to use resource pair (or resource combination) measurement method 2, or can report which of resource pair (or resource combination) measurement method 1 and resource pair (or resource combination) measurement method 2 is used.

[0286] More generally, in the process of reporting the capability information of the terminal device, the terminal device may report whether the following information, that is, a plurality of (e.g., two) reception beams / spatial reception parameters / quasi-co-location (QCL) assumptions are supported for receiving / measuring one measurement resource / channel. Furthermore, in the process of reporting the capability information of the terminal device, the terminal device may report whether the following information, that is, a plurality of (e.g., two) reception beams / spatial reception parameters / QCL assumptions regarding the reception antenna panels of a plurality of terminal devices are supported for receiving / measuring one measurement resource / channel.

[0287] The reception beam may be expressed as a spatial reception parameter or a QCL assumption, or may be expressed as a QCL assumption of type D. Receiving an interference measurement resource by using the reception beam / spatial reception parameter / QCL assumption of a channel measurement resource is equivalent for the terminal device to assuming that there is a QCL relationship, e.g., a QCL relationship of type D, between the interference measurement resource and the channel measurement resource. Receiving an interference measurement resource by using the reception beam / spatial reception parameter / QCL assumption of a plurality of channel measurement resources is equivalent for the terminal device to assuming that there is a QCL relationship, e.g., a QCL relationship of type D, between the interference measurement resource and the plurality of channel measurement resources.

[0288] It should be understood that the interference measurement resource corresponding to a channel measurement resource or a resource pair (or resource combination) may be set by default by the radio access network device and the terminal device, or may be indicated to the terminal device by the radio access network device.

[0289] The channel measurement resources used for single-channel measurement may be all the channel measurement resources in a plurality of channel measurement resources, or may be some of the channel measurement resources in a plurality of channel measurement resources, which should be understood. The channel measurement resources used for single-channel measurement, the channel measurement resources that need to be measured, the channel measurement resources for which single-channel measurement needs to be performed, and the first resource can be replaced with each other.

[0290] Similarly, the resource combinations (or resource pairs) for which joint channel measurement needs to be performed may be all the resource combinations (or all the resource pairs) including at least two groups of channel measurement resources corresponding to a plurality of channel measurement resources, or may be some of the resource combinations (or some of the resource pairs) including at least two groups of channel measurement resources corresponding to a plurality of channel measurement resources. The resource pairs (or resource combinations) for which joint channel measurement needs to be performed, the resource pairs (or resource combinations) for which measurement needs to be performed, and the second resource pairs (or resource combinations) can be replaced with each other.

[0291] It should be understood that the type of interference measurement resource may be an NZP CSI-RS resource, a CSI-IM resource, or another type of interference measurement resource.

[0292] 402: The terminal device performs channel measurement based on a plurality of channel measurement resources to obtain a first measurement result.

[0293] After receiving the first set of configuration information from the wireless access network device, the terminal device may determine a plurality of channel measurement resources and corresponding interference measurement resources based on the first set of configuration information, and perform single-channel measurement and / or joint-channel measurement based on the correspondence and QCL relationship between the channel measurement resources and the interference measurement resources to obtain a first measurement result. The first measurement result may be a measurement result that needs to be reported among all the measurement results obtained by the terminal device through measurement.

[0294] The terminal device may further determine a measurement method corresponding to the first set of configuration information based on the first set of configuration information. When the measurement method is single-channel measurement, the terminal device may separately measure some or all of the determined channel measurement resources to obtain all the measurement results. In this case, all the measurement results include only single-channel measurement results, and the quantity of single-channel measurement results is the quantity of channel measurement resources measured separately.

[0295] When the measurement method is joint-channel measurement, the terminal device may first determine a resource combination (or resource pair) that needs to be measured, and then perform joint measurement on the resource combination (or resource pair) that needs to be measured. The measurement result of the terminal device may include at least one group of joint-channel measurement results, and each resource combination (or resource pair) may correspond to one group of joint-channel measurement results. In addition to performing joint-channel measurement, the terminal device may further perform single-channel measurement, which may be to perform single-channel measurement on some or all of the channel measurement resources in at least one of at least two groups of channel measurement resources, or to perform single-channel measurement on some or all of the channel measurement resources in each of at least two groups of channel measurement resources. In this case, the measurement result of the terminal device may further include at least one group of single-channel measurement results.

[0296] The terminal device may first determine a channel measurement resource set included in the first configuration information, then may determine a plurality of channel measurement resources included in the channel measurement resource set, and may further determine at least one group of channel measurement resources corresponding to the plurality of channel measurement resources.

[0297] In one case, the first configuration information may include first indication information. When the first indication information is N1 or information regarding N1, the terminal device may first obtain N1 based on the first indication information, and then may determine that the first group of channel measurement resources in the two groups of channel measurement resources includes N1 channel measurement resources among the plurality of channel measurement resources, and may determine that the second group of channel measurement resources in the two groups of channel measurement resources includes channel measurement resources other than the N1 channel measurement resources among the plurality of channel measurement resources. When the first indication information includes N1 and N2, or information regarding N1 and information regarding N2, the terminal device may first determine or obtain N1 and N2 based on the first indication information, and then may determine that the first group of channel measurement resources in the two groups of channel measurement resources includes N1 channel measurement resources among the plurality of channel measurement resources, and may determine that the second group of channel measurement resources in the two groups of channel measurement resources includes N2 channel measurement resources other than the N1 channel measurement resources among the plurality of channel measurement resources. The N1 channel measurement resources may be the first N1 channel measurement resources among the plurality of channel measurement resources, the last N1 channel measurement resources among the plurality of channel measurement resources, or N1 channel measurement resources selected by another method from the plurality of channel measurement resources. This is not limited in this specification.

[0298] When N1 is 0 or N, the multiple channel measurement resources correspond to one group of channel measurement resources. When N1 is not 0 or N, the multiple channel measurement resources correspond to two groups of channel measurement resources. After determining or obtaining N1 (and N2) based on the first indication information, the terminal device may first determine whether N1 is 0 or N. If the terminal device determines that N1 is 0 or N, it indicates that the multiple channel measurement resources correspond to one group of channel measurement resources. In this case, the terminal device may directly determine the multiple channel measurement resources as a group of channel measurement resources. If the terminal device determines that N1 is not 0 or N, it indicates that the multiple channel measurement resources correspond to two groups of channel measurement resources. In this case, the terminal device may determine two groups of channel measurement resources based on N1 and the multiple channel measurement resources. The terminal device may determine two groups of channel measurement resources based on the setting sequence of the multiple channel measurement resources, or the reverse sequence of the setting sequence. For example, the terminal device may determine the first N1 channel measurement resources among the multiple channel measurement resources as the first group of channel measurement resources, and determine the remaining channel measurement resources among the multiple channel measurement resources as the second group of channel measurement resources. As another example, the terminal device may determine the last N1 channel measurement resources among the multiple channel measurement resources as the first group of channel measurement resources, and determine the remaining channel measurement resources among the multiple channel measurement resources as the second group of channel measurement resources.

[0299] The first indication information is information regarding N1, N2,..., and N A-1 , or N1, N2..., and N A-1 (or N1, N2,..., N A-1 , and N A , or N1, N2,..., N A-1, and N A When including information related to N1, N2,..., and N (or N1, N2,..., N A-1 (or N1, N2,..., N A-1 , and N A ), the terminal device may first determine or obtain N1, N2,..., and N (or N1, N2,..., N A-1 (or N1, N2,..., N A-1 , and N A ), and then, based on N1, N2,..., and N (or N1, N2,..., N

[0300] and a plurality of channel measurement resources, may determine A groups of channel measurement resources. The terminal device may determine A groups of channel measurement resources based on the setting sequence of the plurality of channel measurement resources or the reverse sequence of the setting sequence. For example, the plurality of channel measurement resources are resources 1, 2, 3, 4, 5, and 6, and A is 3. When N1, N2, and N3 are all 2, the terminal device may determine channel measurement resources 1 and 2 as the first group of channel measurement resources, may determine channel measurement resources 3 and 4 as the second group of channel measurement resources, and may determine channel measurement resources 5 and 6 as the third group of channel measurement resources. Alternatively, the terminal device may determine channel measurement resources 5 and 6 as the first group of channel measurement resources, may determine channel measurement resources 3 and 4 as the second group of channel measurement resources, and may determine channel measurement resources 1 and 2 as the third group of channel measurement resources.

[0301] In another case, the terminal device may first determine a subset of channel measurement resources included in the first configuration information, and then may determine each subset of channel measurement resources as one group of channel measurement resources. When the first configuration information includes one subset of channel measurement resources, the terminal device may determine one group of channel measurement resources. When the first configuration information includes two subsets of channel measurement resources, the terminal device may determine two groups of channel measurement resources. When the first configuration information includes A subsets of channel measurement resources, the terminal device may determine A groups of channel measurement resources. The terminal device may determine each group of channel measurement resources based on the setting sequence of the subsets of channel measurement resources or the reverse sequence of the setting sequence. For example, when the first configuration information includes two subsets of channel measurement resources, the terminal device may determine the first subset of channel measurement resources as the first group of channel measurement resources and the second subset of channel measurement resources as the second group of channel measurement resources. As another example, the terminal device may determine the second subset of channel measurement resources as the first group of channel measurement resources and the first subset of channel measurement resources as the second group of channel measurement resources.

[0302] In another case, the terminal device may determine or obtain a first index corresponding to each of a plurality of channel measurement resources based on the first setting information, and then may group the plurality of channel measurement resources based on the index value of the first index corresponding to the channel measurement resources, and may group the channel measurement resources corresponding to the same index value into the same group of channel measurement resources. When all of the plurality of channel measurement resources correspond to the same index value, the terminal device may determine a group of channel measurement resources, that is, may group all of the plurality of channel measurement resources into the same group of channel measurement resources. When the plurality of channel measurement resources correspond to two index values, the terminal device may determine two groups of channel measurement resources. When the plurality of channel measurement resources correspond to A index values, the terminal device may determine A groups of channel measurement resources. The terminal device may determine each group of measurement resources in descending order or ascending order of the index value. For example, when the plurality of channel measurement resources correspond to two index values, the terminal device may determine the channel measurement resources corresponding to the smaller index value as the first group of channel measurement resources and determine the channel measurement resources corresponding to the larger index value as the second group of channel measurement resources. As another example, when the plurality of channel measurement resources correspond to two index values, the terminal device may determine the channel measurement resources corresponding to the larger index value as the first group of channel measurement resources and determine the channel measurement resources corresponding to the smaller index value as the second group of channel measurement resources.

[0303] In another case, when the terminal device and the wireless access network device default to setting one group of channel measurement resources, or when the wireless access network device pre-indicates to the terminal device that one group of channel measurement resources is set or the value of P is 1, the terminal device may obtain one group of channel measurement resources based on a plurality of channel measurement resources.

[0304] When the terminal device and the radio access network device default to set two groups of channel measurement resources, or when the radio access network device indicates in advance to the terminal device that two groups of channel measurement resources are set, or when the value of P is 2, the terminal device may evenly group a plurality of channel measurement resources into two groups of channel measurement resources. The terminal device may perform grouping based on the configuration sequence of the channel measurement resources. In this case, the terminal device may determine the first half of the channel measurement resources among the plurality of channel measurement resources as the first group of channel measurement resources, and determine the second half of the channel measurement resources among the plurality of channel measurement resources as the second group of channel measurement resources to obtain two groups of channel measurement resources, and vice versa. Alternatively, the terminal device may perform grouping based on the parity of the channel measurement resources. In this case, the terminal device may determine, based on the sequence, the channel measurement resources whose ranking is odd among the plurality of channel measurement resources as the first group of channel measurement resources, and determine, based on the sequence, the channel measurement resources whose ranking is even among the plurality of channel measurement resources as the second group of channel measurement resources to obtain two groups of channel measurement resources, and vice versa. When the number of resources of the plurality of channel measurement resources is even, the number of channel measurement resources included in the two groups of channel measurement resources is the same.When the number of channel measurement resources among a plurality of channel measurement resources is odd, the channel measurement resources included in the group of channel measurement resources corresponding to the first half of the channel measurement resources may include one more channel measurement resource than the channel measurement resources included in the group of channel measurement resources corresponding to the second half of the channel measurement resources, or the channel measurement resources included in the group of channel measurement resources corresponding to the second half of the channel measurement resources may include one more channel measurement resource than the channel measurement resources included in the group of channel measurement resources corresponding to the first half of the channel measurement resources.

[0305] When the terminal device and the radio access network device default to set A groups of channel measurement resources, or when the radio access network device pre-indicates to the terminal device that A groups of channel measurement resources are set, or when the value of P is A, the terminal device may evenly group a plurality of channel measurement resources into A groups of channel measurement resources. When the number of channel measurement resources among the plurality of channel measurement resources can be an integer A, the number of channel measurement resources included in the A groups of channel measurement resources is the same. When the number of channel measurement resources among the plurality of channel measurement resources cannot be an integer A, some groups of channel measurement resources included in the A groups of channel measurement resources may include one more channel measurement resource than the channel measurement resources included in other groups of the A groups of channel measurement resources. The terminal device may perform grouping based on the sequence of channel measurement resources or may perform grouping by another method. For example, assuming that the plurality of channel measurement resources are resources 1, 2, 3, 4, and 5 and A is 3, channel measurement resources 1 and 4 may be grouped into a group, channel measurement resources 2 and 5 may be grouped into a group, and channel measurement resource 3 may be grouped into a group.

[0306] The terminal device can determine a measurement method corresponding to the first setting information based on the first setting information as follows.

[0307] In one case, the terminal device can determine the measurement method based on the first indication information. After determining N1 based on the first indication information, the terminal device can first determine whether N1 is 0 or N. If it is determined that N1 is 0 or N, the terminal device can determine that the measurement method is single-channel measurement. If it is determined that N1 is not 0 or N, the terminal device can determine that the measurement method is joint-channel measurement.

[0308] In another case, the terminal device can determine the measurement method based on the quantity of the channel measurement resource subset included in the first setting information. After determining the channel measurement resource subset included in the first setting information, the terminal device can determine whether the quantity of the resource subset is greater than 1. If it is determined that the quantity of the channel measurement resource subset is greater than 1, the terminal device can determine that the measurement method is joint-channel measurement. If it is determined that the quantity of the channel measurement resource subset is equal to 1, the terminal device can determine that the measurement method is single-channel measurement.

[0309] In still another case, the terminal device can first determine whether the first setting information includes information about the quantity B or B of the group of channel measurement resources. If it is determined that the first setting information includes information about the quantity B or B of the group of channel measurement resources, the terminal device can continue to determine whether B is greater than 1. If it is determined that B is greater than 1, the terminal device can determine that the measurement method is joint-channel measurement. If it is determined that B is equal to 1, or if it is determined that the first setting information does not include information about the quantity B or B of the group of channel measurement resources, the terminal device can determine that the measurement method is single-channel measurement.

[0310] In another case, the terminal device may first determine whether the first configuration information includes a parameter, where the parameter may indicate whether the channel measurement resource set includes at least two groups of channel measurement resources. If it is determined that the first configuration information includes a parameter, the terminal device may continue to determine whether the value of the parameter is a preset value. If it is determined that the value of the parameter is a preset value, the terminal device may determine that the measurement method is joint channel measurement. If the first configuration information does not include a parameter, or if it is determined that the value of the parameter is not a preset value, the terminal device may determine that the measurement method is single channel measurement. The preset value may be 0, 1, or another value. This is not limited in this specification.

[0311] In another case, the terminal device may first determine whether the first configuration information includes a parameter, where the parameter may indicate the measurement method. If it is determined that the first configuration information includes a parameter, the terminal device may directly determine that the measurement method is joint channel measurement and may continue to identify whether the parameter is a first option or a second option. If it is identified that the parameter is the second option, the terminal device may determine that the measurement method is joint channel measurement. If it is determined that the first configuration information does not include a parameter, or if it is identified that the parameter is the first option, the terminal device may determine that the measurement method is single channel measurement.

[0312] In another case, the terminal device may first determine the first reporting configuration information included based on the first configuration information, and then may determine the quantity of the first parameters included in the first reporting configuration information. If the quantity of the first parameters is greater than 1, the terminal device may determine that the measurement method is joint channel measurement. If the quantity of the first parameters is equal to 1, the terminal device may determine that the measurement method is single channel measurement.

[0313] In another case, the terminal device may first determine a reportQuantity parameter based on the first setting information. If the value of the parameter reportQuantity is one or some special values, the terminal device may determine that the measurement method is joint channel measurement. If the value of the parameter reportQuantity is not the aforementioned value, the terminal device may determine that the measurement method is single channel measurement.

[0314] In another case, after determining the quantity of the group of channel measurement resources corresponding to a plurality of channel measurement resources, the terminal device may determine whether the quantity of the group of channel measurement resources is greater than 1. If it is determined that the quantity of the group of channel measurement resources is greater than 1, the terminal device may determine that the measurement method is joint channel measurement. If it is determined that the quantity of the group of channel measurement resources is equal to 1, the terminal device may determine that the measurement method is single channel measurement.

[0315] The terminal device may further determine the channel measurement resources for which single channel measurement needs to be performed. The terminal device may first determine whether the first setting information includes the second indication information. If the first setting information does not include the second indication information and it is determined that the measurement method is single channel measurement, the terminal device may determine that all the channel measurement resources in the plurality of channel measurement resources need to be measured separately.

[0316] When it is determined that the first setting information does not include the second indication information and the measurement method is joint channel measurement, the terminal device may determine that all channel measurement resources in a plurality of channel measurement resources need to be measured separately, or may determine that it is not necessary for all channel measurement resources in a plurality of channel measurement resources to be measured separately, or may determine that at least one of at least two groups of channel measurement resources needs to be measured separately, or may determine another meaning. This is not limited in this specification. The specific meaning may be determined based on the default settings between the radio access network device and the terminal device.

[0317] When it is determined that the first setting information includes the second indication information, the terminal device may determine the first resource based on the second indication information. In one case, the terminal device may determine or obtain M based on the second indication information. When the measurement method is single-channel measurement, the terminal device may determine the first M channel measurement resources among the plurality of channel measurement resources as the first resource, or may determine the last M channel measurement resources among the plurality of channel measurement resources as the first resource, or may determine any M channel measurement resources among the plurality of channel measurement resources as the first resource, or may determine the M channel measurement resources among the plurality of channel measurement resources as the first resource by another method. This is not limited in this specification. When the measurement method is joint-channel measurement, the terminal device may determine the first M channel measurement resources in each of at least two groups of channel measurement resources as the first resource, or may determine the last M channel measurement resources in each of at least two groups of channel measurement resources as the first resource, or may determine any M channel measurement resources in each of at least two groups of channel measurement resources as the first resource, or may determine the M channel measurement resources in each of at least two groups of channel measurement resources as the first resource by another method. This is not limited in this specification.

[0318] In another case, the terminal device may determine or obtain M based on the second indication information, and then i determine the first M i channel measurement resources in the i-th group of channel measurement resources as the first resource, or may determine the last M i channel measurement resources in the i-th group of channel measurement resources as the first resource, or may determine any M iThe individual channel measurement resources may be determined as the first resource, or M channel measurement resources in the i-th group of channel measurement resources may be determined as the first resource by another method. This is not limited in this specification. For details of M and i, please refer to the relevant description in step 401. i In another case, the terminal device may determine the first resource based on the value of each bit in the first bitmap. For example, the terminal device may exist within a plurality of channel measurement resources and determine, as the first resource, the channel measurement resource corresponding to the value 1 of the bit in the first bitmap. As another example, the terminal device may exist within a plurality of channel measurement resources and determine, as the first resource, the channel measurement resource corresponding to the value 0 of the bit in the first bitmap. i For details of M and i, please refer to the relevant description in step 401.

[0319] In another case, the terminal device may determine the first resource based on the values of the bits included in at least two bitmaps. For example, the terminal device may exist within at least two groups of channel measurement resources and determine, as the first resource, the channel measurement resource corresponding to the value 1 of the bit in the bitmap. As another example, the terminal device may exist within at least two groups of channel measurement resources and determine, as the first resource, the channel measurement resource corresponding to the value 0 of the bit in the bitmap.

[0320] In another case, the terminal device may determine the first resource based on the values of the bits included in at least two bitmaps. For example, the terminal device may exist within at least two groups of channel measurement resources and determine, as the first resource, the channel measurement resource corresponding to the value 1 of the bit in the bitmap. As another example, the terminal device may exist within at least two groups of channel measurement resources and determine, as the first resource, the channel measurement resource corresponding to the value 0 of the bit in the bitmap.

[0321] When the measurement method is joint channel measurement, the terminal device may further determine a resource combination (or resource pair) for which joint channel measurement needs to be performed. The terminal device may first determine whether the first configuration information includes the third indication information. If it is determined that the first configuration information does not include the third indication information, the terminal device may determine that all resource combinations (or resource pairs) including at least two groups of channel measurement resources need to be measured.

[0322] If it is determined that the first configuration information includes the third indication information and a plurality of channel measurement resources correspond to two groups of channel measurement resources, the terminal device may determine a second resource pair based on the third indication information. If it is determined that the first configuration information includes the third indication information and a plurality of channel measurement resources correspond to at least three groups of channel measurement resources, the terminal device may determine a resource combination that needs to be measured based on the third indication information. The terminal device may determine the second resource pair or the resource combination that needs to be measured based on the second bitmap. For example, the terminal device may determine, as the second resource pair (or the resource combination that needs to be measured), a resource pair (or resource combination) that exists within all resource pairs (or all resource combinations) and corresponds to the value 1 of the bit in the second bitmap. As another example, the terminal device may determine, as the second resource pair (or the resource combination that needs to be measured), a resource pair (or resource combination) that exists within all resource pairs (or all resource combinations) and corresponds to the value 0 of the bit in the second bitmap.

[0323] In one case, the terminal device may first determine a third bitmap based on first setting information, and then may determine a first bitmap and a second bitmap based on the third bitmap. Based on the first bitmap, the terminal device may further determine a first resource, and based on the second bitmap, the terminal device may determine a second resource pair (or a resource combination that needs to be measured).

[0324] When the first setting information includes fourth indication information, the terminal device may determine a reporting mode based on the fourth indication information. When the reporting mode includes only the first mode and the second mode, when the fourth indication information is the first option, the terminal device may determine that the reporting mode is the first mode, or when the fourth indication information is the second option, the terminal device may determine that the reporting mode is the second mode. When the reporting mode includes the first mode, the second mode, and the third mode, when the fourth indication information is the first option, the terminal device may determine that the reporting mode is the first mode, or when the fourth indication information is the second option, the terminal device may determine that the reporting mode is the second mode, or when the fourth indication information is the third option, the terminal device may determine that the reporting mode is the third mode.

[0325] Also, the terminal device may determine that the measurement method is joint channel measurement based on one or more of the second indication information, the third indication information, and the fourth indication information. For example, when the first configuration information includes the third indication information, the terminal device may determine that the measurement method is joint channel measurement. As another example, the first configuration information may include the second indication information only when the measurement method is joint channel measurement. Therefore, when the first configuration information includes the second indication information, the terminal device may determine that the measurement method is joint channel measurement. As another example, the first configuration information may include the fourth indication information only when the measurement method is joint channel measurement. Therefore, when the first configuration information includes the fourth indication information, the terminal device may determine that the measurement method is joint channel measurement.

[0326] When the measurement method determined by the terminal device is single channel measurement, after determining the channel measurement resources for which single channel measurement needs to be performed, the terminal device may measure each of these channel measurement resources separately to obtain all the measurement results. In this case, all the measurement results include only single channel measurement results, and the quantity of single channel measurement results is the same as the quantity of channel measurement resources that need to be measured. That is, one channel measurement resource that needs to be measured corresponds to one single channel measurement result.

[0327] If the measurement method determined by the terminal device is joint channel measurement and a plurality of channel measurement resources correspond to at least two groups of channel measurement resources, after determining the resource pairs (or resource combinations) for which single-channel measurement needs to be performed, the terminal device performs joint measurement on each of these resource pairs (or resource combinations) in these resource pairs (or resource combinations) to obtain at least one group of joint channel measurement results. In this case, all measurement results may include at least one group of joint channel measurement results, and the number of groups of joint channel measurement results is the same as the number of resource pairs (or resource combinations) that need to be measured, that is, one resource pair (or resource combination) that needs to be measured corresponds to one group of joint channel measurement results.

[0328] If the measurement method determined by the terminal device is joint channel measurement, the terminal device needs to further determine whether to perform single-channel measurement, and can determine whether there is a channel measurement resource for which channel measurement (or single-channel measurement) needs to be performed. If the terminal device determines that there is a channel measurement resource for which channel measurement needs to be performed, it indicates that single-channel measurement needs to be further performed. The terminal device can separately measure each channel measurement resource in the determined channel measurement resources for which single-channel measurement needs to be performed to obtain at least one group of single-channel measurement results. In this case, all measurement results may further include at least one group of single-channel measurement results, and the number of groups of single-channel measurement results may be less than or equal to the number of groups of channel measurement resources corresponding to a plurality of channel measurement resources. One group of channel measurement resources corresponds to one group of single-channel measurement results. If the terminal device determines that there is no channel measurement resource for which channel measurement needs to be performed, it indicates that single-channel measurement is not required. In this case, all measurement results include only at least one group of joint channel measurement results.

[0329] When measuring the third resource pair, the terminal device can simultaneously receive the reference signal through the received beams of the two channel measurement resources on each of the two channel measurement resources in the third resource pair. The third resource pair is any resource pair among the resource pairs that need to be measured, and may be, for example, any resource pair in the second resource pair. The received beams of the two channel measurement resources in the third resource pair may be one or two received beams.

[0330] When measuring a resource pair, it can be learned that the terminal device needs to simultaneously measure each channel measurement resource through the receive beams corresponding to the two channel measurement resources in the resource pair. When measuring the first channel measurement resource in the resource pair, the terminal device may use the second channel measurement resource as interference. The terminal device measures the interference caused by the second channel measurement resource to the first channel measurement resource and may receive the second channel measurement resource through the receive beam of the first channel measurement resource. Similarly, when measuring the second measurement channel measurement resource in the resource pair, the terminal device may use the first channel measurement resource as interference. The terminal device measures the interference caused by the first channel measurement resource to the second channel measurement resource and may receive the first channel measurement resource through the receive beam of the second channel measurement resource.

[0331] For example, if there is a channel measurement resource pair {1, 4}, the terminal device needs to simultaneously measure channel measurement resource 1 through the receive beams of channel measurement resources 1 and 4, and simultaneously measure channel measurement resource 4 through the receive beams of channel measurement resources 1 and 4.

[0332] Channel measurement has a certain complexity. A larger quantity of channel measurement resources to be measured indicates a higher complexity. The complexity of channel measurement can be quantized and can be quantized by using the CPU. The complexity corresponding to one channel measurement can be represented as S CPU, and a larger value of S indicates a higher complexity of channel measurement. The quantity of CPUs indicates the computing capability used by the terminal device to process channel measurements. Each terminal device has a corresponding upper limit on the quantity of CPUs. Each channel measurement report occupies several CPUs. If there are insufficient CPUs, the terminal device cannot process more channel measurement requirements. The complexity of channel measurement is related to the quantity of channel measurement resources to be measured. If a larger quantity of channel measurement resources are to be measured, a larger quantity of CPUs will be occupied.

[0333] Therefore, before performing channel measurement, the terminal device can first calculate the quantity of CPUs occupied by the measurement, and then determine whether the quantity of currently idle CPUs in the terminal device is greater than or equal to the quantity of CPUs occupied by the measurement. If the terminal device determines that the quantity of currently idle CPUs in the terminal device is greater than or equal to the quantity of CPUs occupied by the measurement, it may indicate that there are sufficient CPUs, and the terminal device can perform channel measurement. If the terminal device determines that the quantity of currently idle CPUs in the terminal device is less than the quantity of CPUs occupied by the measurement, it may indicate that there are insufficient CPUs, and the terminal device does not need to perform the current channel measurement, or may perform the current channel measurement after sufficient CPUs become available.

[0334] When the measurement method is single-channel measurement, the quantity of CPUs occupied by the measurement is the quantity of channel measurement resources that need to be measured. When the measurement method is joint-channel measurement, the quantity of CPUs occupied by the measurement is 2 * P, Q + 2 * P, or Q + k *It can be P. Q is the quantity of channel measurement resources included in the first resource, that is, the quantity of channel measurement resources for which single-channel measurement needs to be performed. P is the quantity of resource pairs (or resource combinations) for which joint channel measurement needs to be performed, for example, the quantity of resource pairs included in the second resource pair. k is a constant, which is a value reported by the terminal device or a value set by the radio access network device. The value of k can be 0, 1, or 2, or a value between 0 and 1. P is an integer greater than or equal to 1, and Q is an integer greater than or equal to 0.

[0335] Before performing channel measurement, the terminal device needs to further determine at least one interference measurement resource based on the first configuration information. Then, for each channel measurement resource to be measured, the terminal device may determine the interference measurement resource corresponding to the channel measurement resource to be measured. For each resource pair (or each resource combination) to be measured, the terminal device may determine the interference measurement resource corresponding to the resource pair to be measured. Different channel measurement resources to be measured correspond to different interference measurement resources, and different resource pairs (or resource combinations) to be measured correspond to different interference measurement resources. The interference measurement resource corresponding to the channel measurement resource to be measured is different from the interference measurement resource corresponding to the channel measurement pair (or resource combination) to be measured, that is, the channel measurement resource to be measured corresponds one-to-one with the corresponding interference measurement resource, and the resource pair (or resource combination) to be measured may correspond one-to-one with the corresponding interference measurement resource. For example, the first resource includes channel measurement resources 1, 2, and 3, the second resource pair includes resource pairs {1, 4} and {2, 5}, and the interference measurement resources are resources 1, 2, 3, 4, and 5. Channel measurement resources 1, 2, and 3 correspond one-to-one with interference measurement resources 1, 2, and 3, and resource pairs {1, 4} and {2, 5} correspond one-to-one with interference measurement resources 4 and 5.

[0336] The terminal device can perform a single-channel measurement based on the channel measurement resource and the corresponding interference. Measurement resource The channel measurement resource and the interference corresponding to this channel measurement resource Measurement resource can be measured simultaneously or separately, but the same receive beam can be used for the channel measurement resource and the interference. Measurement resource

[0337] The terminal device can perform a joint channel measurement based on the resource pair (or resource combination) and the corresponding interference. Measurement resource The resource pair (or resource combination) and the interference corresponding to the resource pair (or resource combination) Measurement resource can be measured simultaneously, and the same receive beam can be used for the resource pair (or resource combination) and the interference. Measurement resource

[0338] After obtaining the measurement result through the measurement, the terminal device can select the measurement result that needs to be reported from the measurement result to obtain the first measurement result.

[0339] 403: The terminal device sends the first measurement result to the radio access network device.

[0340] After performing a channel measurement based on a plurality of channel measurement resources to obtain the first measurement result, the terminal device sends the first measurement result to the radio access network device.

[0341] When the measurement method is single-channel measurement, the first measurement result may include all single-channel measurement results, or one or more of all single-channel measurement results. One or more single-channel measurement results may be the single-channel measurement results with the best channel quality among all single-channel measurement results, or multiple single-channel measurement results with better channel quality among all single-channel measurement results. The single-channel measurement results may include information regarding channel measurement resources, RI, PMI, CQI, and LI. The information regarding channel measurement resources may be the index of the channel measurement resources among multiple channel measurement resources, the index of the bit corresponding to the channel measurement resources in the first bitmap, or other indication information indicating the channel measurement resources.

[0342] When the measurement method is joint-channel measurement, the first measurement result may include only one group of channel measurement results. For example, when the reporting mode is the first mode, the terminal device reports only one group of channel measurement results, and the group of channel measurement results may be single-channel measurement results or joint-channel measurement results. Alternatively, the first measurement result may include multiple groups of channel measurement results. For example, when the reporting mode is the second mode, the terminal device reports Y groups of joint-channel measurement results and X groups of single-channel measurement results. After determining the reporting mode based on the fourth indication information included in the first configuration information, the terminal device may select the first measurement result from all measurement results based on the reporting mode.

[0343] When the reporting mode is the first mode and a plurality of channel measurement resources correspond to two groups of channel measurement resources, the terminal device may select, from the joint channel measurement results corresponding to the resource pairs used for joint channel measurement, a group of joint channel measurement results, for example, the joint channel measurement results having the best channel quality, and may determine, from the single channel measurement results corresponding to each of the two groups of channel measurement resources, a group of single channel measurement results, for example, the single channel measurement results having the best channel quality. Then, the terminal device may select one of the plurality of determined groups of measurement results and report a group of measurement results, for example, the group of measurement results having the best quality.

[0344] When the reporting mode is the second mode, the terminal device may first determine X and Y, and then select, from all the measurement results, Y groups of joint-channel measurement results and X groups of single-channel measurements. The Y groups of joint-channel measurement results and the X groups of single-channel measurement results may be determined as the first measurement results. The Y groups of joint-channel measurement results may be Y groups of joint-channel measurement results having the best channel quality in at least one group of joint-channel measurement results included in all the measurement results, any Y groups of joint-channel measurement results in at least one group of joint-channel measurement results included in all the measurement results, or Y groups of joint-channel measurement results selected by another method from at least one group of joint-channel measurement results included in all the measurement results. The X groups of single-channel measurement results may be X groups of single-channel measurement results having the best channel quality in at least one group of single-channel measurement results included in all the measurement results, any X groups of single-channel measurement results in at least one group of single-channel measurement results included in all the measurement results, or X groups of joint-channel measurement results selected by another method from at least one group of single-channel measurement results included in all the measurement results.

[0345] When the reporting mode is the third mode, the terminal device may determine all single-channel measurements in all the measurement results as the first measurement results, or determine one or more groups of single-channel measurement results having the best channel quality as the first measurement results in at least one group of single-channel measurement results included in all the measurement results.

[0346] The first measurement result may further include information about a second resource, where the second resource is the channel measurement resource to be reported in the first resource, i.e., the channel measurement resource that needs to be reported. It can be understood that each of at least one group of single-channel measurement results includes information about the channel measurement resource. The information about the channel measurement resource can be the index of the channel measurement resource.

[0347] In one case, the information about the second resource can be the local index of the second resource in the channel measurement resource set. For example, the channel measurement resource set may include channel measurement resources {1, 2, 3, 4, 5}, and the corresponding local indices may be #0, #1, #2, #3, and #4. If channel measurement resource 3 needs to be reported, the corresponding index #2 is reported.

[0348] In another case, the information about the second resource can be the local index of the second resource in the group of channel measurement resources corresponding to the second resource. For example, the channel measurement resource set includes channel measurement resources {1, 2, 3, 4, 5}, the first group of channel measurement resources is {1, 2, 3}, and the second group of channel measurement resources is {4, 5}. The local indices of the three channel measurement resources in the first group of channel measurement resources {1, 2, 3} within the group are #0, #1, and #2, and the local indices of the two channel measurement resources in the second group of channel measurement resources {4, 5} within the group are #0 and #1. If channel measurement resource 3 needs to be reported, local index #2 is reported. If channel measurement resource 4 needs to be reported, local index #0 is reported.

[0349] In another case, the information regarding the second resource may be the local index of the second resource in the channel measurement resource belonging to the first resource in the group of channel measurement resources corresponding to the second resource. For example, the channel measurement resource set includes channel measurement resources {1, 2, 3, 4, 5}, the first group of channel measurement resources is {1, 2, 3}, and the second group of channel measurement resources is {4, 5}. The quantity of channel measurement resources that need to be measured in each group of channel measurement resources is 2, that is, only the first two channel measurement resources in each group of channel measurement resources are measured, that is, the measured channel measurement resources are resources 1, 2, 4, and 5. The index of the channel measurement resource may be the local index of the channel measurement resource in all the channel measurement resources that need to be measured. For example, the local indexes corresponding to channel measurement resources 1, 2, 4, and 5 may be #0, #1, #2, and #3. When channel measurement resource 1 needs to be reported, local index #0 is reported. When channel measurement resource 5 needs to be reported, local index #3 is reported. The index of the channel measurement resource may alternatively be the local index of the channel measurement resource that needs to be measured in the channel measurement resource group where the channel measurement resource is located. For example, the local indexes corresponding to resources 1 and 2 are #0 and #1, and the local indexes corresponding to resources 4 and 5 are #0 and #1. When channel measurement resource 1 needs to be reported, local index #0 is reported. When channel measurement resource 5 needs to be reported, local index #1 is reported. In another case, the information regarding the second resource may be the index of the bit corresponding to the second resource in the first bitmap. The index of the bit may be the compositional location of the bit in the first bitmap. For example, the bit index of the third ranked bit may be #2.When multiple channel measurement resources correspond to two groups of channel measurement resources, the first measurement result may include a joint channel measurement result. The joint channel measurement result is the channel measurement result of a first resource pair. The first resource pair may include one or more resource pairs, each including two channel measurement resources. The two channel measurement resources belong to two groups of channel measurement resources respectively, and the joint channel measurement result may include information about the first resource pair. The information about the first resource pair may be the index of the bit corresponding to the first resource pair in a second bitmap. For example, the resource pairs {1, 4}, {1, 5}, {2, 4}, {2, 5}, {3, 4}, and {3, 5} correspond to a 6-bit bitmap. The bits corresponding to the six resource pairs are the first bit to the sixth bit respectively, and the indexes of the corresponding bits are #0, #1, #2, #3, #4, and #5 respectively. The information about the first resource pair may alternatively be the local index of the first resource pair among all resource pairs. For example, in the six resource pairs {1, 4}, {1, 5}, {2, 4}, {2, 5}, {3, 4}, and {3, 5} mentioned above, the local indexes of all resource pairs are #0, #1, #2, #3, #4, and #5 respectively. The information about the first resource pair may alternatively be the local index of the first resource pair in the resource pairs that need to be measured, for example, the local index in the second resource pair. For example, in the six resource pairs {1, 4}, {1, 5}, {2, 4}, {2, 5}, {3, 4}, and {3, 5} mentioned above, the resource pairs that need to be measured are {1, 4} and {2, 5}. When the first resource pair is {1, 4}, the local index corresponding to the first resource pair is #0. When the first resource pair is {2, 5}, the local index corresponding to the first resource pair is #1. The information about the first resource pair may alternatively be the index of the channel measurement resources included in the first resource pair. The second resource pair may include the first resource pair.The first resource pair can be understood as the resource pair that needs to be reported, that is, the resource pair that needs to be reported in the second resource pair.

[0350] The first configuration information may include a second index, the second index includes second indication information and third indication information, and the second index may include P + Q index values. That is, the second resource and the first resource pair may be represented by using the same index. For example, there are Q channel measurement resources that need to be measured and P resource pairs that need to be measured. The index values are #0, #1,..., and #(P + Q - 1), and there are a total of P + Q index values. Each index value corresponds to one channel measurement resource or resource pair. For example, the first Q index values correspond to the aforementioned Q channel measurement resources, and the last P index values correspond to the aforementioned P resource pairs. As another example, the first P index values correspond to the aforementioned P resource pairs, and the last Q index values correspond to the aforementioned Q channel measurement resources. In the reporting format, the field length corresponding to the index is

[0351] [Number]

[0352] It is a bit. The index value corresponding to the channel measurement resource is different from the index value corresponding to the resource pair. Whether the second resource or the first resource pair is reported can be identified by using the reported index value. For example, when the reporting mode is the first mode, the channel measurement results reported by the terminal device may be single-channel measurement results or joint-channel measurement results. The specific type can be determined based on the aforementioned index. Optionally, when the reporting mode is the first mode, the second resource and the first resource pair may be specified to be represented by using the aforementioned index. In other words, when the reporting mode is the first mode, the information regarding the second resource and the information regarding the first resource pair can be represented by using the same parameter or index. When the reporting mode is another mode, for example, the second mode, the information regarding the second resource and the information regarding the first resource pair are reported by different methods. In other words, when the reporting mode is the second mode, the information regarding the second resource and the information regarding the first resource pair can be separately represented by using different parameters or indexes. In the aforementioned method, P may be replaced by S as an alternative, provided that S is the quantity of the set resource pairs, and Q may be replaced by R, provided that R is the quantity of the set channel measurement resources.

[0353] In different reporting modes, the measurement results reported by the terminal device may be different. For example, when the reporting mode is the first mode, the terminal device may report a group of single-channel measurement results or a group of joint-channel measurement results. When the reporting mode is the second mode, the terminal device reports Y groups of joint measurement results and X groups of single-channel measurement results. The reporting formats of these measurement results need to be specified. In this way, the terminal device knows the format in which the measurement results are reported, and the radio access network device knows how to interpret the reported measurement results.

[0354] In one case, the terminal device reports a group of channel measurement results. This group of channel measurement results can be single-channel measurement results or joint-channel measurement results. The specific type can be determined based on the value of the index included in the channel measurement results. For example, according to the method described above, when the second resource and the first resource pair can be represented by using the same index, the index value corresponding to the second resource is different from the index value corresponding to the first resource pair, and whether the group of channel measurement results is single-channel measurement results or joint-channel measurement results can be determined by using the index value. In this case, the reporting format can be divided into two parts, namely, the first part and the second part. Various information included in the reported channel measurement results is carried in the two parts. The two parts may be transmitted by using different signaling or may have different reporting priorities. The following details the content of the first part and the second part. This reporting format can be used when the reporting mode is the first mode.

[0355] The first part may include one or more of the following.

[0356] The first information: The first information indicates the channel measurement resource or resource pair, and may indicate the channel measurement resource or resource pair based on which the group of channel measurement results is obtained through measurement. Specifically, the first information may be an index value, and the channel measurement resource or resource pair may be determined by using the index value.

[0357] The fourth information: The fourth information indicates whether the group of channel measurement results is single-channel measurement results corresponding to a channel measurement resource or joint-channel measurement results corresponding to a resource pair.

[0358] Fifth information: When the terminal device determines that the group of channel measurement results is a single-channel measurement result (for example, determined by using the fourth information), the fifth information further indicates the channel measurement resource group to which the channel measurement resource corresponding to the group of single-channel measurement results belongs.

[0359] Sixth information: The sixth channel is information regarding a channel measurement resource or a resource pair, for example, index information. When the fourth information indicates that the group of channel measurement results is a single-channel measurement result corresponding to a channel measurement resource, the sixth information is information regarding the channel measurement resource. When the fourth information indicates that the group of channel measurement results is a joint-channel measurement result corresponding to a resource pair, the sixth information is information regarding the resource pair. When the sixth information is information regarding a channel measurement resource, the specific form of the sixth information may be some of the specific forms of the information regarding the second resource described above. When the sixth information is information regarding a resource pair, the specific form of the sixth information may be some of the specific forms of the information regarding the first resource pair described above.

[0360] One or two RI information: Specifically, whether one or two RI information exists can be determined by using the first information. When the first information indicates one channel measurement resource, only one RI information exists. When the first information indicates one resource pair, two RI information exist. The first measurement result may further include a first field, and the first field indicates an RI. When the first field indicates one RI, the measurement result included in the first measurement result is a single-channel measurement result. When the first field indicates an RI combination including two RIs, the measurement result included in the first measurement result is a joint-channel measurement result. The aforementioned one or two RI information may alternatively be indicated by using a field. The field has a plurality of field values, and some field values correspond to a single RI information, and some field values correspond to two RI information. The network device can determine the quantity and specific RI values of the reported RI information based on the field value reported by the terminal device. For example, the length of the field is 3 bits and includes 8 field values, which correspond to 8 RI information, that is, {1, 2, 3, 4, 1+1, 1+2, 2+1, 2+2}. However, reporting 1 indicates that a single RI is reported, and the value of the RI is 1. Similarly, reporting 2, 3, or 4 indicates that a single RI is reported, and the value of the RI is 2, 3, or 4. Reporting 1+1 indicates that two RIs are reported. However, the value of the first RI is 1, and the value of the second RI is 1. Similarly, the principle of reporting 1+2, 2+1, or 2+2 is the same as the principle of reporting 1+1. Further, in this case, whether the group of channel measurement results is a single-channel measurement result or a joint-channel measurement result can be determined based on the quantity of RIs. CQI information of the first codeword: The CQI information may include wideband CQI information and subband CQI information, or may include only wideband CQI information.

[0361] The second part may include one or more of the following.

[0362] CQI information of the second codeword: The CQI information may include wideband CQI information and sub-band CQI information, or may include only wideband CQI information.

[0363] One or two LI information: Specifically, whether one or two LI information exists can be determined by using the first information. When the first information indicates one channel measurement resource, only one LI information exists. When the first information indicates one resource pair, two LI information exist.

[0364] One or two PMI information: Specifically, whether one or two PMI information exists can be determined by using the first information. When the first information indicates one channel measurement resource, only one PMI information exists. When the first information indicates one resource pair, two PMI information exist. The PMI information may include wideband PMI information and sub-band PMI information, or may include only wideband information.

[0365] The second part can be further divided into two parts, namely, a wideband part and a sub-band part. In this case, sub-band information in the second part, such as sub-band CQI and sub-band PMI, can be carried in the sub-band part, and other information can be carried in the wideband part. Optionally, the CQI of the first codeword may be alternatively arranged in the second part. Alternatively, the sub-band CQI of the first codeword is arranged in the second part, for example, in the sub-band part of the second part.

[0366] In another case, the terminal device reports Y groups of joint channel measurement results and X groups of single channel measurement results. The value of Y may be 1 by default, or may be set to 0 or 1, for example, by the radio access network device. The value of X may be set to 0, 1, or 2, for example, by the radio access network device. There are two implementations. In one implementation, each of the aforementioned Y+X groups of channel measurement results is separately divided into a first part and a second part. In the other implementation, the aforementioned Y+X groups of channel measurement results are combined and then divided into a first part and a second part. Both methods can be used when the reporting mode is the second mode.

[0367] In the first implementation, each of the aforementioned Y+X groups of channel measurement results is separately divided into a first part and a second part. The Y+X groups of channel measurement results are sorted in order. For example, the X groups of single channel measurement results are ranked before the Y groups of joint channel measurement results. Alternatively, the Y groups of joint channel measurement results are ranked before the X groups of single channel measurement results. The X groups of single channel measurement results can be sorted based on the index sequence or setting sequence of the channel measurement resources included in the single channel measurement results. In the setting sequence, the single channel measurement results corresponding to the channel measurement resources with smaller indexes or higher rankings have higher rankings.

[0368] The first part of the single channel measurement results may include one or more of the following.

[0369] Second information: The second information indicates the channel measurement resource and may indicate the channel measurement resource measured to obtain the group of channel measurement results. The second information may indicate the channel measurement resource by using the aforementioned method for indicating the second resource.

[0370] One RI information.

[0371] CQI information of the first codeword. The CQI information may include wideband CQI information and sub-band CQI information, or may include only wideband CQI information.

[0372] The second part of the single-channel measurement result may include one or more of the following.

[0373] CQI information of the second codeword. The CQI information may include wideband CQI information and sub-band CQI information, or may include only wideband CQI information.

[0374] One LI information.

[0375] One PMI information. The PMI information may include wideband PMI information and sub-band PMI information, or may include only wideband information.

[0376] The second part can be further divided into two parts, namely, a wideband part and a sub-band part. In this case, sub-band information in the second part, such as sub-band CQI and sub-band PMI, etc., can be carried in the sub-band part, and other information can be carried in the wideband part.

[0377] The first part of the joint-channel measurement result may include one or more of the following.

[0378] The third information: The third information indicates a resource pair and may indicate the resource pair measured to obtain a group of channel measurement results. The third information may indicate the resource pair by using the aforementioned method for indicating the first resource pair.

[0379] Two RI information.

[0380] CQI information of the first codeword. The CQI information may include wideband CQI information and sub-band CQI information, or may include only wideband CQI information.

[0381] The second part of the joint channel measurement result may include one or more of the following.

[0382] CQI information of the second codeword. The CQI information may include wideband CQI information and sub-band CQI information, or may include only wideband CQI information.

[0383] Two LI information.

[0384] Two PMI information. The PMI information may include wideband PMI information and sub-band PMI information, or may include only wideband information.

[0385] The second part can be further divided into two parts, namely a wideband part and a sub-band part. In this case, sub-band information in the second part, such as sub-band CQI and sub-band PMI, etc., can be carried in the sub-band part, and other information can be carried in the wideband part. Optionally, the CQI of the first codeword may alternatively be placed in the second part. Alternatively, the sub-band CQI of the first codeword is placed in the second part, for example, in the sub-band part of the second part.

[0386] In the second implementation, the aforementioned Y + X groups of channel measurement results may alternatively be combined and then divided into a first part and a second part.

[0387] The first part may include one or more of the following. Y pieces of third information and X pieces of second information: indicating Y resource pairs and X channel measurement resources RI information corresponding to Y resource pairs: for example, 2Y pieces of RI information RI information corresponding to X channel measurement resources: for example, X pieces of RI information First codeword CQI information corresponding to Y resource pairs: may include wideband CQI information and sub-band CQI information, or may include only wideband CQI information, and First codeword CQI information of X channel measurement resources: may include wideband CQI information and sub-band CQI information, or may include only wideband CQI information.

[0388] The second part may include one or more of the following. LI information corresponding to Y resource pairs: for example, 2Y pieces of LI information LI information corresponding to X channel measurement resources: for example, X pieces of LI information Second codeword CQI information corresponding to Y resource pairs: may include wideband CQI information and sub-band CQI information, or may include only wideband CQI information Second codeword CQI information of X channel measurement resources: may include wideband CQI information and sub-band CQI information, or may include only wideband CQI information PMI information corresponding to Y resource pairs: for example, 2Y pieces of PMI information, may include wideband PMI information and sub-band PMI information, or may include only wideband PMI information, and PMI information corresponding to X channel measurement resources: may include wideband PMI information and sub-band PMI information, or may include only wideband PMI information.

[0389] The second part can be further divided into two parts, namely, a wideband part and a sub-band part. In this case, sub-band information in the second part, such as sub-band CQI and sub-band PMI, etc., can be carried in the sub-band part, and other information can be carried in the wideband part. Optionally, the CQI of the first codeword may be alternatively arranged in the second part. Alternatively, the sub-band CQI of the first codeword is arranged in the second part, for example, in the sub-band part of the second part.

[0390] If the reported results include both joint channel measurement results and single channel measurement results, some of the measurement results in the joint channel measurement results may be the same as the single channel measurement results. In this case, only one measurement result needs to be reported. An example where Y = 1 and X = 2 is used as an example for explanation. The Y = 1 group of joint channel measurement results includes two RIs, and / or two PMIs, and / or two LIs. Each of the X = 2 groups of single channel measurement results also includes one RI, and / or one PMI, and / or one LI. The two RIs in the X = 2 groups of single channel measurement results can be considered the same as the two RIs in the Y = 1 group of joint channel measurement results. Therefore, the two RIs do not need to be reported repeatedly, and the two RIs in the X = 2 groups of single channel measurement results may be omitted, or the two RIs in the Y = 1 group of joint channel measurement results may be omitted. For example, the terminal device may not need to report the two RIs in the X = 2 groups of single channel measurement results. In this case, the network device uses the two RIs in the Y = 1 group of joint channel measurement results separately as the RIs in the X = 2 groups of single channel measurement results. As another example, the terminal device may not need to report the two RIs in the Y = 1 group of joint channel measurement results. In this case, the network device uses the two RIs in the X = 2 groups of single channel measurement results as the two RIs in the Y = 1 group of joint channel measurement results. When Y = 1 and X = 1, there is only one group of single channel measurement results. The RI in the group of single channel measurement results can be assumed to be the same as the RI in the Y = 1 group of joint channel measurement results. In this case, only one of the RIs may be reported and there is no need to report it repeatedly. For example, the terminal device may not need to report the RI in the X = 1 group of single channel measurement results.In this case, the network device uses the RI in the Y = 1 group of joint channel measurement results as the RI in the X = 1 group of single channel measurement results. Which of the two RIs in the Y = 1 group of joint channel measurement results is used is specifically determined by using the following method. The above-mentioned two RIs are determined separately by using two channel measurement resources in the resource pair. The two channel measurement resources belong to two groups of channel measurement resources respectively. Therefore, each RI can be considered to correspond to one group of channel measurement resources. When the channel measurement resource corresponding to the X = 1 group of single channel measurement results belongs to a specific group of channel measurement resources, the RI corresponding to that group of channel measurement resources is used as the RI in the X = 1 group of single channel measurement results. Similarly, the above method is also applicable to reporting PMI and LI.

[0391] In the above method, the single channel measurement result is not divided into a first part and a second part and may only include one part, provided that the part includes one or more of the information regarding one channel measurement resource, one RI information, one LI information, one PMI information, one CQI information, etc. In the above method, the joint channel measurement result is not divided into a first part and a second part and may only include one part, provided that the part includes one or more of the information regarding one resource pair, two RI information, two LI information, two PMI information, one or two CQI information, etc.

[0392] In one example, the terminal device reports only one group of channel measurement results, and the group of channel measurement results may be single-channel measurement results or joint-channel measurement results. When single-channel measurement results are reported, the first part and the second part may be included as described above, or only one part may be included, provided that the part includes one or more of information regarding one channel measurement resource, one RI information, one LI information, one PMI information, one CQI information, etc. When joint-channel measurement results are reported, the first part and the second part may be included as described above, or only one part may be included, provided that the part includes one or more of information regarding one resource pair, two RI informations, two LI informations, two PMI informations, one or two CQI informations, etc. Optionally, whether the single-channel measurement results or the joint-channel measurement results specifically include one part or two parts may be determined in the frequency-domain granularity of the channel measurement. When the frequency-domain granularity is wideband, one part may be used. When the frequency-domain granularity is sub-band, two parts may be used.

[0393] In another example, when the terminal device reports Y groups of joint channel measurement results and X groups of single channel measurement results, each single channel measurement result may include a first part and a second part as described above, or may include only one part, provided that the part includes one or more of information regarding one channel measurement resource, one RI information, one LI information, one PMI information, one CQI information, etc. Each joint channel measurement result may include a first part and a second part as described above, or may include only one part, provided that the part includes one or more of information regarding one resource pair, two RI informations, two LI informations, two PMI informations, one or two CQI informations, etc. Optionally, whether a single channel measurement result or a joint channel measurement result specifically includes one part or two parts may be determined in the frequency domain granularity of the channel measurement. When the frequency domain granularity is wideband, one part may be used. When the frequency domain granularity is sub-band, two parts may be used.

[0394] When multiple groups of measurement results are reported, it may be specified that the frequency domain granularity settings of the multiple groups of measurement results need to be the same. Alternatively, the multiple groups of measurement results include only one part or two parts.

[0395] The joint channel measurement result may further include joint channel information. Similar to the single channel information, the joint channel information may include only one part, or may include two parts, namely, a first part and a second part. When the joint channel information includes only one part, the joint channel information may include at least two CRIs, at least two RIs, at least two LIs, at least two PMIs, and at least one or two CQIs. When the joint channel information includes two parts, the first part includes at least two CRIs, at least two RIs, and the CQI of the first codeword (including wideband CQI and subband CQI), and the second part may be further divided into wideband information and subband information. The wideband information in the second part may include the wideband CQI information of the second codeword, at least two LIs, and at least two wideband PMI information. The subband information in the second part may include the subband CQI information of the second codeword and at least two subband PMI information.

[0396] If the terminal device needs to report multiple groups of channel information simultaneously, for example, one group of joint channel information and at least one group of single channel information, the multiple parts can be divided by the following methods. In Method 1, the multiple groups of channel information can be divided separately. For example, each group of channel information can be divided into at least two parts, and the content included in each part is the same as the content of single channel information or joint channel information. In Method 2, the multiple groups of channel information are combined for division. For example, the first part of the group of channel information is combined as a part, and the second part of the group of channel information is combined as the other part.

[0397] If the uplink transmission resources are limited or to save uplink transmission resources, when the terminal device cannot report all the measurement results in the first measurement result, the terminal device may select the measurement results with higher reporting priorities from the first measurement result and report those measurement results.

[0398] Reporting priorities exist among different groups of measurement results included in the first measurement result. The first measurement result may include at least one group of joint channel measurement results and / or at least one group of single channel measurement results, and the first reporting priority exists among at least one group of joint channel measurement results and / or at least one group of single channel measurement results. When multiple channel measurement resources correspond to two groups of channel measurement resources, at least one group of joint channel measurement results corresponds one-to-one with the resource pairs included in the first resource pair, that is, each of at least one group of joint channel measurement results corresponds to one resource pair in the first resource pair, and each of at least one group of single channel measurement results corresponds to one of the two groups of channel measurement resources. The fact that the first reporting priority exists among at least one group of joint channel measurement results and / or at least one group of single channel measurement results may be understood as the first reporting priority existing between at least one group of joint channel measurement results and at least one group of single channel measurement results, or the first reporting priority existing among at least one group of joint channel measurement results, or the first reporting priority existing among at least one group of single channel measurement results.

[0399] The first reporting priority between at least one group of single-channel measurement results may be determined based on the setting sequence of the corresponding measurement resource group, where in the setting sequence, a higher ranking may correspond to a higher reporting priority, or in the setting sequence, a lower ranking may correspond to a lower reporting priority. For example, a channel measurement resource set includes channel measurement resources {1, 2, 3, 4, 5}, a first group of channel measurement resources is {1, 2, 3}, and a second group of channel measurement resources is {4, 5}. The reporting priority of the group of single-channel measurement results corresponding to the first group of channel measurement resources may be higher than the reporting priority of the group of single-channel measurement results corresponding to the second group of channel measurement resources, or the reporting priority of the group of single-channel measurement results corresponding to the first group of channel measurement resources may be lower than the reporting priority of the group of single-channel measurement results corresponding to the second group of channel measurement resources.

[0400] The first reporting priority among at least one group of single-channel measurement results may alternatively be determined based on the setting sequence of the channel measurement resources corresponding to the channel measurement results, or the index value relationship between the channel measurement resources corresponding to the channel measurement results, such that a channel measurement result having a higher ranking or a smaller index value in the corresponding channel measurement resource setting sequence corresponds to a higher reporting priority, or a channel measurement result having a higher ranking or a smaller index value in the corresponding channel measurement resource setting sequence corresponds to a lower reporting priority. For example, the channel measurement resource set includes channel measurement resources {1, 2, 3, 4, 5}, and the channel measurement resources corresponding to two groups of single-channel measurement results that need to be reported are 1 and 2, respectively. In the setting sequence, if the single-channel measurement result corresponding to the channel measurement resource with a higher ranking has a higher reporting priority, the first group of single-channel measurement results corresponds to a higher reporting priority. Otherwise, the second group of single-channel measurement results corresponds to a higher reporting priority. If the single-channel measurement result corresponding to the channel measurement resource with a smaller index value has a higher reporting priority, the first group of single-channel measurement results corresponds to a higher reporting priority. Otherwise, the second group of single-channel measurement results corresponds to a higher reporting priority.

[0401] The first reporting priority among at least one group of single-channel measurement results may alternatively be determined based on the CQI corresponding to each group of measurement results. If the CQIs corresponding to two of at least one group of single-channel measurement results are different, the group of single-channel measurement results with the larger CQI has a higher reporting priority. It can be understood that a larger CQI in different groups of single-channel measurement results corresponds to a higher reporting priority. If the CQIs corresponding to two of at least one group of single-channel measurement results are the same, the reporting priorities of the two groups of single-channel measurement results may be determined based on the setting sequences of the two groups of channel measurement resources corresponding to the two groups of single-channel measurement results, or may be determined based on the setting sequences of the channel measurement resources corresponding to the two groups of channel measurement results, or the index value relationship between the channel measurement resources corresponding to the two groups of channel measurement results. It can be learned that the reporting priority among different groups of single-channel measurement results can first be determined based on the corresponding CQI. When the same CQI exists, the reporting priority can be determined based on the setting sequence of the corresponding channel measurement resources.

[0402] The first reporting priority among at least one group of joint-channel measurement results may be determined based on the setting sequence of the corresponding resource pair (or resource combination). In the setting sequence, a higher ranking may correspond to a higher reporting priority, or in the setting sequence, a lower ranking may correspond to a lower reporting priority. For example, the terminal device may determine that the resource pair corresponding to the bit with a higher ranking in the second bitmap has a higher reporting priority, or may determine that the resource pair corresponding to the bit with a lower ranking in the second bitmap has a higher reporting priority.

[0403] The first reporting priority between at least one group of joint channel measurement results may alternatively be determined based on the CQI corresponding to each group of measurement results. If the CQIs corresponding to two of at least one group of joint channel measurement results are different, the group of joint channel measurement results having the larger CQI has a higher reporting priority. If the CQIs corresponding to two of at least one group of joint channel measurement results are the same, the reporting priorities of the two groups of joint channel measurement results may be determined based on the setting sequence of the resource pairs (or resource combinations) corresponding to the two groups of joint channel measurement results. It can be learned that the reporting priorities between different groups of joint channel measurement results can first be determined based on the corresponding CQIs. If the same CQI exists, the reporting priority may be determined based on the setting sequence of the corresponding resource pair (or resource combination).

[0404] In the case of a first reporting priority between at least one group of joint channel measurement results and at least one group of single channel measurement results, the reporting priority between the joint channel measurement results and the single channel measurement results can first be determined. For example, the reporting priority of at least one group of joint channel measurement results may be lower than the reporting priority of at least one group of single channel measurement results, the reporting priority of at least one group of joint channel measurement results may be higher than the reporting priority of at least one group of single channel measurement results, or the reporting priority of at least one group of joint channel measurement results may be between the reporting priorities of at least one group of single channel measurement results. For example, if one group of joint channel measurement results and two groups of single channel measurement results need to be reported, the reporting priority of the joint channel measurement results may be between the reporting priorities of the two groups of single channel measurement results. Next, the reporting priority between at least one group of single channel measurement results can be determined by the aforementioned method for determining the reporting priority of single channel measurement results. The reporting priority between at least one group of joint channel measurement results can be determined by the aforementioned method for determining the reporting priority of joint channel measurement results.

[0405] The first reporting priority between at least one group of joint channel measurement results and at least one group of single channel measurement results may alternatively be determined based on the CQI corresponding to each group of measurement results. The terminal device may first determine the CQI corresponding to each of at least one group of joint channel measurement results and at least one group of single channel measurement results, and then may determine the reporting priorities of at least one group of joint channel measurement results and at least one group of single channel measurement results based on the corresponding CQI. A larger CQI corresponds to a higher reporting priority. If the CQIs corresponding to two groups of single channel measurement results are the same, the reporting priorities of the two groups of single channel measurement results may be determined based on the setting sequences of the two groups of channel measurement resources corresponding to the two groups of single channel measurement results. If the CQIs corresponding to two groups of joint channel measurement results are the same, the reporting priorities of the two groups of joint channel measurement results may be determined based on the setting sequences of the resource pairs (or resource combinations) corresponding to the two groups of joint channel measurement results. If the CQI corresponding to one group of single channel measurement results is the same as the CQI corresponding to one group of joint channel measurement results, the reporting priority of the single channel measurement results may be higher than the reporting priority of the joint channel measurement results, or the reporting priority of the joint channel measurement results may be higher than the reporting priority of the single channel measurement results.

[0406] In the case of the first reporting priority between at least one group of joint channel measurement results and at least one group of single channel measurement results, the reporting priority between the joint channel measurement results and the single channel measurement results can first be determined based on the transmission mode. Then, the reporting priority between at least one group of single channel measurement results can be determined by the aforementioned method for determining the reporting priority of single channel measurement results, and the reporting priority between at least one group of joint channel measurement results can be determined by the aforementioned method for determining the reporting priority of joint channel measurement results. When the transmission mode is the single TRP mode, the reporting priority of the single channel measurement results is higher than that of the joint channel measurement results. When the transmission mode is the multi-TRP mode, the reporting priority of the joint channel measurement results is higher than that of the single channel measurement results. The single TRP mode can be understood as the network side communicating with the terminal device through a single TRP. For example, the TCI state activated for the physical downlink shared channel (PDSCH) is a single TCI state that does not include a TCI state group. The multi-TRP mode can be understood as the network side communicating with the terminal device through multiple TRPs. For example, the TCI state activated for the PDSCH includes a TCI state group. The TCI state group is a TCI state group that includes multiple TCI states, each TCI state corresponds to one TRP, and the transmission of the PDSCH by using the TCI state group is multi-TRP transmission.

[0407] The CQI corresponding to each group of measurement results may be the maximum CQI among the CQIs corresponding to all the measurement results in each group of measurement results, or may be the minimum CQI among the CQIs corresponding to all the measurement results in each group of measurement results, or may be the average value (or weighted average value) of the CQIs corresponding to all the measurement results in each group of measurement results, or may be the sum (or weighted sum) or product of the CQIs corresponding to all the measurement results in each group of measurement results, or may be the variance of the CQIs corresponding to all the measurement results in each group of measurement results, or may be a value determined by another method based on the CQIs corresponding to all the measurement results in each group of measurement results.

[0408] When the measurement result is a single-channel measurement result and the single-channel information includes only one part, the CQI corresponding to the single-channel measurement result may be the CQI included in that part. When the measurement result is a single-channel measurement result and the single-channel information includes two parts, the CQI corresponding to the single-channel measurement result may be the CQI included in the first part, or may be the wideband CQI included in the second part, or may be the sub-band CQI included in the second part, or may be a value determined based on the wideband CQI and sub-band CQI included in the second part, or may be a value determined based on the CQI included in the first part and the wideband CQI and / or sub-band CQI included in the second part.

[0409] When the measurement result is a joint channel measurement result and the joint channel information contains only one part, the CQI corresponding to the joint channel measurement result may be the CQI included in that part. When the measurement result is a joint channel measurement result and the joint channel information contains two parts, the CQI corresponding to the joint channel measurement result may be the CQI included in the first part, or may be the wideband CQI included in the second part, or may be the sub-band CQI included in the second part, or may be a value determined based on the wideband CQI and the sub-band CQI included in the second part, or may be a value determined based on the CQI included in the first part and the wideband CQI and / or sub-band CQI included in the second part.

[0410] The joint channel measurement result is obtained by measuring a resource pair and corresponds to the channel measurement results of two channel measurement resources in the resource pair, for example, two RIs, two PMIs, and two LIs. The two channel measurement resources each belong to two groups of channel measurement resources. Therefore, one group of joint channel measurement results can be further divided into two groups of measurement results, and each group of measurement results corresponds to one channel measurement resource or one group of channel measurement resources. The reporting priority also exists between the two groups of measurement results. For example, the reporting priority of the measurement results corresponding to the first group of channel measurement resources is higher than the reporting priority of the measurement results corresponding to the second group of channel measurement resources. As another example, the reporting priority of the measurement results corresponding to the first group of channel measurement resources is lower than the reporting priority of the measurement results corresponding to the second group of channel measurement resources.

[0411] Alternatively, the first reporting priority may be indicated by a radio access network device by using Radio Resource Control (RRC) signaling, Media Access Control (MAC) control element (CE) signaling, or downlink control information (DCI) signaling, or may be reported by a terminal device.

[0412] When the frequency domain granularity of channel measurement is a sub-band, the third reporting priority exists between the measurement results corresponding to the even-numbered sub-bands and the measurement results corresponding to the odd-numbered sub-bands within the same group of measurement results in the first measurement result. The terminal device may first determine the reporting priority between at least one group of measurement results included in the first measurement result based on the first reporting priority, and then determine the reporting priority between the measurement results corresponding to the even-numbered sub-bands and the measurement results corresponding to the odd-numbered sub-bands included in each of at least one group of measurement results based on the third reporting priority. Alternatively, the terminal device may first determine the reporting priority between the measurement results corresponding to the even-numbered sub-bands and the measurement results corresponding to the odd-numbered sub-bands based on the third reporting priority, and then determine the reporting priority between the measurement results belonging to each group of measurement results in the measurement results corresponding to the even-numbered sub-bands and the reporting priority between the measurement results belonging to each group of measurement results in the measurement results corresponding to the odd-numbered sub-bands based on the first reporting priority. The third reporting priority may be that the reporting priority of the measurement results corresponding to the even-numbered sub-bands is higher than the reporting priority of the measurement results corresponding to the odd-numbered sub-bands, or the reporting priority of the measurement results corresponding to the even-numbered sub-bands is lower than the reporting priority of the measurement results corresponding to the odd-numbered sub-bands. Optionally, the measurement results corresponding to the even-numbered sub-bands may be further defined as the measurement results corresponding to the even-numbered sub-bands in the sub-band level measurement results included in the second part in the reporting format, and the measurement results corresponding to the odd-numbered sub-bands are the measurement results corresponding to the odd-numbered sub-bands in the sub-band level measurement results included in the second part in the reporting format. The determination of the reporting priority between at least one group of measurement results included in the first measurement result based on the first reporting priority may further include the following.When the group of channel measurement results is a joint channel measurement result, the reporting priorities of two groups of measurement results in the group of joint channel measurement results (i.e., two measurement results corresponding to two channel measurement resources or two groups of channel measurement resources respectively) can be further sorted according to the method described above.

[0413] For example, the reporting priority of joint channel measurement results is higher than that of single channel measurement results, and the reporting priority of measurement results corresponding to even-numbered sub-bands is higher than that of measurement results corresponding to odd-numbered sub-bands. For example, the first reporting priority and the third reporting priority can cooperate in the manner shown in Table 1 to determine the reporting priority of each group of measurement results.

[0414]

Table 1

[0415] As another example, the first reporting priority and the third reporting priority can cooperate in the manner shown in Table 2 to determine the reporting priority of each group of measurement results.

[0416]

Table 2

[0417] A wireless access network device may configure a terminal device to perform multiple types of measurements simultaneously, such as channel measurements of a local cell, channel measurements of another cell, CQI measurements, and RSRP measurements. Parameters related to each type of measurement (such as channel measurement resources or frequency domain granularity) are set in separate configuration information. Measurement results corresponding to multiple configuration information may be reported at different times, or may be reported at the same time through the same uplink transmission. The uplink transmission may be a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0418] When measurement results corresponding to multiple configuration information (i.e., multiple reporting configurations) need to be reported through a single uplink transmission, and all measurement results corresponding to all configuration information cannot be transmitted due to limited uplink transmission resources, the terminal device may sort the measurement results corresponding to different configuration information based on the reporting priorities corresponding to the reporting configuration information included in the configuration information, discard the measurement results corresponding to the reporting configuration information with lower reporting priorities, and ensure the reporting of the measurement results corresponding to the reporting configuration information with higher reporting priorities.

[0419] The following uses two pieces of configuration information as an example for explanation, but the amount of configuration information is not limited.

[0420] The wireless access network device can send second configuration information to the terminal device, and the first configuration information is different from the second configuration information. The terminal device can receive the second configuration information from the wireless access network device, and then perform channel measurement based on the second configuration information to obtain a second measurement result. A second reporting priority exists between the first measurement result and the second measurement result. When the terminal device needs to report the first measurement result and the second measurement result through a single uplink transmission, the terminal device first determines, based on the second reporting priority, the reporting priority corresponding to the first reporting configuration information corresponding to the first measurement result and the reporting priority corresponding to the second reporting configuration information corresponding to the second measurement result, that is, determines the reporting priority between the first measurement result and the second measurement result. Then, for each reporting configuration, based on the first reporting priority, further determines the reporting priority between multiple groups of measurement results corresponding to each reporting configuration, that is, based on the first reporting priority, can separately determine the reporting priority between at least two groups of measurement results included in the first measurement result and the second measurement result. That the reporting priority between at least one group of measurement results included in the first measurement result is determined based on the first reporting priority may further include the following. When the group of channel measurement results is a joint channel measurement result, the reporting priority of two groups of measurement results in the group of joint channel measurement results (that is, two measurement results corresponding to two channel measurement resources or two groups of channel measurement resources respectively) can be further sorted according to the method described above.

[0421] For example, the reporting priority of reporting setting 1 is higher than that of reporting setting 2, the reporting priority of reporting setting 2 is higher than that of reporting setting 3,... and so on. The reporting priority of joint channel measurement results is higher than that of single channel measurement results. The first reporting priority and the second reporting priority can cooperate in the manner shown in Table 3 to determine the reporting priority of different channel measurement results in each reporting configuration.

[0422]

Table 3

[0423] When measurement results corresponding to multiple reporting settings need to be reported through a single uplink transmission, the reporting settings may include multiple groups of measurement results, and the frequency domain granularity of the measurement results is a sub-band. In this case, the reporting priority between groups of measurement results in each of all reporting settings, as well as the reporting priority between channel measurement results corresponding to odd-numbered sub-bands and even-numbered sub-bands in each channel measurement result, need to be comprehensively determined based on the aforementioned three reporting priorities. The terminal device may first determine the priority between measurement results corresponding to multiple reporting settings based on the second reporting priority, then for each reporting setting, further determine the reporting priority between multiple groups of measurement results corresponding to each reporting setting based on the first reporting priority, and finally, for each group of measurement results, determine the reporting priority between measurement results corresponding to odd-numbered sub-bands and even-numbered sub-bands in the group of measurement results based on the third reporting priority. Alternatively, the terminal device may first determine the reporting priority between measurement results corresponding to multiple reporting settings based on the second reporting priority, for each reporting setting, further determine the reporting priority between measurement results corresponding to even-numbered sub-bands and measurement results corresponding to odd-numbered sub-bands based on the third reporting priority, and then determine the reporting priority between measurement results belonging to each group of measurement results in the measurement results corresponding to even-numbered sub-bands and the reporting priority between measurement results belonging to each group of measurement results in the measurement results corresponding to odd-numbered sub-bands based on the first reporting priority. That the reporting priority between at least one group of measurement results included in the first measurement result is determined based on the first reporting priority may further include the following. When a group of channel measurement results is a joint channel measurement result, the reporting priority between two groups of measurement results in the group of joint channel measurement results (i.e., two measurement results corresponding to two channel measurement resources or two groups of channel measurement resources respectively) may be further sorted according to the method described above.

[0424] For example, the reporting priority of reporting setting 1 is higher than that of reporting setting 2, the reporting priority of reporting setting 2 is higher than that of reporting setting 3, and so on. The reporting priority of joint channel measurement results is higher than that of single channel measurement results. The reporting priority of measurement results corresponding to even-numbered sub-bands is higher than that of measurement results corresponding to odd-numbered sub-bands. The three reporting priorities can cooperate in the manner shown in Table 4 to determine the reporting priority of each group of channel measurement results in each reporting setting.

[0425]

Table 4

[0426] It should be understood that Tables 1 to 4 are merely examples for explaining the reporting priorities of different measurement results and do not constitute limitations thereon.

[0427] Based on the foregoing network architecture, FIG. 5 is another schematic flowchart of a communication method according to an embodiment of the present invention. As shown in FIG. 5, the communication method may include the following steps.

[0428] 501: The radio access network device sends first setting information including a plurality of channel measurement resources to the terminal device.

[0429] Correspondingly, the terminal device receives the first setting information from the radio access network device.

[0430] 502: The radio access network device sends a reference signal to the terminal device based on the plurality of channel measurement resources.

[0431] Correspondingly, the terminal device receives the reference signal from the radio access network device based on the plurality of channel measurement resources.

[0432] After sending the first set of configuration information to the terminal device, the radio access network device may send a reference signal to the terminal device based on a plurality of channel measurement resources. The radio access network device may send a reference signal to the terminal device based on the channel measurement resources and / or resource combinations (or resource pairs) for which measurements need to be made. The terminal device may receive the reference signal based on the determined channel measurement resources and / or resource combinations (or resource pairs) for which measurements need to be made. One channel measurement resource may correspond ...

Claims

1. A communication method executed by a first communication device, comprising: receiving first configuration information from a second communication device, wherein the first configuration information is used to configure a plurality of channel measurement resources (step 401); performing channel measurement based on the first configuration information to obtain a first measurement result (step 402); and transmitting the first measurement result to the second communication device (step 403). The first measurement result includes a joint channel measurement result, the joint channel measurement result is a channel measurement result of a first resource pair, the first resource pair includes two channel measurement resources, the two channel measurement resources belong to the plurality of channel measurement resources, and the joint channel measurement result includes indication information of the first resource pair. The first configuration information further includes third indication information, the third indication information indicates a second resource pair, the second resource pair is in the plurality of channel measurement resources and includes one or more resource pairs used for joint channel measurement, and the second resource pair includes the first resource pair. The number of channel state information processing units (CPUs) occupied by channel measurement is Q + k * P, where Q is the number of channel measurement resources included in a first resource, the first resource includes one or more channel measurement resources used for single-channel measurement in the plurality of channel measurement resources, P is the number of resource pairs included in the second resource pair, k is a value reported by the first communication device, and Q, P, and k are positive integers. A communication method.

2. The plurality of channel measurement resources correspond to two groups of channel measurement resources, and the two channel measurement resources of each resource pair in the first resource pair belong to the two groups of channel measurement resources respectively. The method according to claim 1.

3. When the frequency band used by the second communication device is within frequency range (FR) 2, the channel measurement resources of different resource pairs in the second resource pair are different. The method according to claim 1 or 2.

4. ​ The first setting information further includes fifth indication information, and the fifth indication information indicates at least one interference measurement resource. The quantity of interference measurement resources within the at least one interference measurement resource is equal to the sum of Q and P. The type of the interference measurement resource is a non-zero power channel state information-reference signal (NZP CSI-RS) resource or a channel state information-interference measurement (CSI-IM) resource. The method according to claim 1 or 2.

5. Among the first Q interference measurement resources within the at least one interference measurement resource, they correspond one-to-one with the Q channel measurement resources included in the first resource, and among the remaining P interference measurement resources within the at least one interference measurement resource, they correspond one-to-one with the P resource pairs included in the second resource pair. The method according to claim 4.

6. A first communication device, A receiving unit configured to receive first setting information from a second communication device, where the first setting information is used to set a plurality of channel measurement resources, the receiving unit (601); A measurement unit (602) configured to perform channel measurements on the plurality of channel measurement resources based on the first setting information to obtain a first measurement result; A transmitting unit (603) configured to transmit the first measurement result to the second communication device and The first measurement result includes a joint channel measurement result, the joint channel measurement result is a channel measurement result of a first resource pair, the first resource pair includes two channel measurement resources, the two channel measurement resources belong to the plurality of channel measurement resources, and the joint channel measurement result includes indication information of the first resource pair. The first setting information further includes third indication information, the third indication information indicates a second resource pair, the second resource pair is among a plurality of channel measurement resources and includes one or more resource pairs used for joint common channel measurement, the second resource pair includes the first resource pair. The number of channel state information processing units (CPUs) occupied by channel measurement is Q + k * P, where Q is the number of channel measurement resources included in the first resource, and the first resource includes one or more channel measurement resources used for single channel measurement among the plurality of channel measurement resources. P is the number of resource pairs included in the second resource pair, k is a value reported by the first communication device, and Q, P, and k are positive integers. The first communication device.

7. The plurality of channel measurement resources correspond to two groups of channel measurement resources, and the two channel measurement resources of each resource pair within the first resource pair respectively belong to the two groups of channel measurement resources. The first communication device according to claim 6.

8. When the frequency band used by the second communication device falls within frequency range (FR) 2, the channel measurement resources of different resource pairs within the second resource pair are different. The first communication device according to claim 6 or 7.

9. The first setting information further includes fifth indication information, and the fifth indication information indicates at least one interference measurement resource. The number of interference measurement resources within the at least one interference measurement resource is equal to the sum of Q and P. The type of the interference measurement resource is a non-zero power channel state information-reference signal (NZP CSI-RS) resource or a channel state information-interference measurement (CSI-IM) resource. The first communication device according to claim 6 or 7.

10. The first Q interference measurement resources within the at least one interference measurement resource correspond one-to-one with the Q channel measurement resources included in the first resource, and the remaining P interference measurement resources within the at least one interference measurement resource correspond one-to-one with the P resource pairs included in the second resource pair. The first communication device according to claim 9.

11. A communication method executed by a second communication device, comprising: Transmitting first setting information to a first communication device, where the first setting information is used to set a plurality of channel measurement resources (step 401); Receiving a first measurement result from the first communication device (step 403). and The first measurement result includes a joint channel measurement result, the joint channel measurement result is a channel measurement result of a first resource pair, the first resource pair includes two channel measurement resources, the two channel measurement resources belong to the plurality of channel measurement resources, and the joint channel measurement result includes indication information of the first resource pair. The first setting information further includes third indication information, the third indication information indicates a second resource pair, the second resource pair is among the plurality of channel measurement resources and includes one or more resource pairs used for joint channel measurement, and the second resource pair includes the first resource pair. The quantity of channel state information processing units (CPUs) occupied by channel measurement is Q + k * P, where Q is the quantity of channel measurement resources included in the first resource, the first resource includes one or more channel measurement resources used for single channel measurement among the plurality of channel measurement resources, P is the quantity of resource pairs included in the second resource pair, k is a value reported by the first communication device, and Q, P, and k are positive integers. Communication method.

12. The method according to claim 11, wherein the plurality of channel measurement resources correspond to two groups of channel measurement resources, and the two channel measurement resources of each resource pair within the first resource pair belong to the two groups of channel measurement resources respectively.

13. The method according to claim 11 or 12, wherein when the frequency band used by the second communication device falls within frequency range (FR) 2, the channel measurement resources of different resource pairs within the second resource pair are different.

14. The first setting information further includes fifth indication information, and the fifth indication information indicates at least one interference measurement resource. The quantity of interference measurement resources within the at least one interference measurement resource is equal to the sum of Q and P. The type of the interference measurement resource is a non-zero power channel state information-reference signal (NZP CSI-RS) resource or a channel state information-interference measurement (CSI-IM) resource. The method according to claim 11 or 12.

15. The first Q interference measurement resources in the at least one interference measurement resource correspond one-to-one to the Q channel measurement resources included in the first resource, and the remaining P interference measurement resources in the at least one interference measurement resource correspond one-to-one to the P resource pairs included in the second resource pair. The method according to claim 14.

16. A second communication device, A transmission unit configured to transmit first configuration information to a first communication device, wherein the first configuration information is used to configure a plurality of channel measurement resources, the transmission unit (701); A receiving unit (702) configured to receive a first measurement result from the first communication device Comprising The first measurement result includes a joint channel measurement result, the joint channel measurement result is a channel measurement result of a first resource pair, the first resource pair includes two channel measurement resources, the two channel measurement resources belong to the plurality of channel measurement resources, and the joint channel measurement result includes indication information of the first resource pair. The first configuration information further includes third indication information, the third indication information indicates a second resource pair, the second resource pair is in a plurality of channel measurement resources and includes one or more resource pairs used for joint common channel measurement, the second resource pair includes the first resource pair. The number of channel state information processing units (CPUs) occupied by channel measurement is Q + k * P, where Q is the number of channel measurement resources included in the first resource, the first resource includes one or more channel measurement resources used for single channel measurement in the plurality of channel measurement resources, P is the number of resource pairs included in the second resource pair, k is a value reported by the first communication device, and Q, P, and k are positive integers. A second communication device.

17. The plurality of channel measurement resources correspond to two groups of channel measurement resources, and the two channel measurement resources of each resource pair in the first resource pair belong to the two groups of channel measurement resources respectively. The second communication device according to claim 16.

18. When the frequency band used by the second communication device falls within frequency range (FR) 2, the channel measurement resources of different resource pairs in the second resource pair are different. The second communication device according to claim 16 or 17.

19. The first configuration information further includes fifth indication information, and the fifth indication information indicates at least one interference measurement resource. The quantity of interference measurement resources in the at least one interference measurement resource is equal to the sum of Q and P. The type of the interference measurement resource is a non-zero power channel state information-reference signal (NZP CSI-RS) resource or a channel state information-interference measurement (CSI-IM) resource. The second communication device according to claim 16 or 17.

20. The first Q interference measurement resources in the at least one interference measurement resource correspond one-to-one to the Q channel measurement resources included in the first resource, and the remaining P interference measurement resources in the at least one interference measurement resource correspond one-to-one to the P resource pairs included in the second resource pair. The second communication device according to claim 19.

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