Communication method and communication device

Abstract

The invention provides a communication method and a communication device, and the method comprises the steps: terminal equipment determines M pieces of channel state information after measuring Ks reference signal resources, and can report the M pieces of channel state information of M reference signal resources in the Ks reference signal resources in a channel state information field, and the M pieces of channel state information are arranged according to the priority of the M reference signal resources in the channel state information field. Through the mode, when the bit which can be borne by the uplink channel is limited, the terminal equipment can select the channel state information of the proper reference signal resource to report based on the priority of the M reference signal resources, and the influence of the transmission capacity of a user is reduced.

Description

Technical Field

[0001] This application relates to the field of wireless communication, and more specifically, to a communication method and a communication device. Background Technology

[0002] In wireless communication, reference signals are transmitted between the transmitting and receiving ends to send and receive data, obtain system synchronization, and provide feedback channel information. For example, the transmitting end sends a reference signal to the receiving end, which receives the reference signal and can then perform corresponding operations based on the reference information, such as performing channel measurements and reporting measurement reports. Summary of the Invention

[0003] This application provides a communication method and a communication device that enables terminal devices to define the priority of multiple measurement results for multiple pilot resources in the same reported measurement report.

[0004] Firstly, a communication method is provided. This method can be applied to the terminal side; that is, it can be executed by the terminal device or by components of the terminal device (such as chips, chip systems, circuits, or communication modules). The chip may be a modem chip, also known as a baseband chip, or a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. This application does not limit the scope of the method. The following description primarily uses a terminal device as an example.

[0005] The method may include: receiving Channel State Information (CSI) reporting configuration information, wherein the CSI reporting configuration includes Ks reference signal resources, where Ks is an integer greater than 1; measuring the Ks reference signal resources to determine M channel state information items, where M is an integer greater than 1; and sending the M channel state information items, wherein the order of the M channel state information items in the channel state information field is determined based on the priority of the M reference signal resources among the Ks reference signal resources.

[0006] Where M is less than or equal to Ks.

[0007] Based on the above technical solution, after measuring Ks reference signal resources, the terminal device determines M channel state information. It can then report these M channel state information for the M reference signal resources in the channel state information field, with the M channel state information arranged according to the priority of the M reference signal resources. In this way, when the uplink channel's bit capacity is limited, the terminal device can select and report the appropriate channel state information for the M reference signal resources based on their priority, reducing the impact on user transmission capacity.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the priority of M channel state information can be determined based on the priority of M reference signal resources, and then arranged in priority order in the channel state information field according to the priority of the M channel state information.

[0009] In conjunction with the first aspect, in some implementations of the first aspect, the M reference signal resources include a first reference signal resource and a second reference signal resource, and the priority of the first reference signal resource is higher than the priority of the second reference signal resource. Therefore, in the channel state information field, the bits occupied by the channel state information corresponding to the first reference signal resource are more important than the bits occupied by the channel state information corresponding to the second reference signal resource.

[0010] Based on the above technical solution, in the channel state information field, the channel state information of reference signal resources with relatively high priority can occupy relatively important bits, while the channel state information of reference signal resources with relatively low priority can occupy relatively unimportant bits.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, in the channel state information field, the importance of the bits decreases from left to right, and the M channel state information information are arranged in the channel state information field from left to right in order of priority from high to low.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the order of the M channel state information items in the channel state information field is determined based on the priority of the M reference signal resources, including: the priority of the M reference signal resources is determined based on at least one of the following parameters: channel state information-reference signal resource indicator (CSI-RSresource indicator, CRI), rank indicator (RI), precoding matrix indicator (PMI), and channel quality indicator (CQI).

[0013] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the parameters of the measured M channel state information, or in other words, the priority of the M reference signal resources is determined based on the reported content in the M channel quality information.

[0014] Optionally, the content of the M channel quality information corresponding to the M reference signal resources includes at least one of the following parameters: CSI-RS resource indicator (CRI), rank indicator (RI), precoding matrix indicator (PMI), channel quality indicator (CQI), etc.

[0015] Optionally, the M channel quality information may also include other measurement parameters, which are not limited in this embodiment.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the RI and the CQI, including: the priority of the M reference signal resources is determined based on the channel capacity; if the channel capacity of the first reference signal resource is greater than the channel capacity of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource, wherein the channel capacity is determined based on the RI and the CQI.

[0017] Based on the above technical solution, the channel capacity can be determined based on RI and CQI, and the priority of the M reference signal resources can be determined based on the channel capacity. The larger the channel capacity in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0018] In conjunction with the first aspect, in some implementations of the first aspect, when the channel capacity of the first reference signal resource is equal to the channel capacity of the second reference signal resource, the priority of the M reference signal resources is determined based on the size of the CRI.

[0019] Based on the above technical solution, when the channel capacity of the first reference signal resource is equal to the channel capacity of the second reference signal resource, the priority of the M reference signal resources can be determined based on the value of CRI.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the magnitude of the CRI, including: if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0021] Based on the above technical solution, the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource. Alternatively, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0022] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the following formula:

[0023] Pri(CRI(k))=X1*(X3-((RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))))+X2*CRI(k); Formula (3); where CRI(k) represents the CRI value of the k-th reference signal resource among the M reference signal resources, Pri(CRI(k)) represents the priority of the k-th reference signal resource among the M reference signal resources, and the value of k ranges from 1 to M; where X1>>X2, and X1, X3>0, X2≥0; where RI(CW0) represents the number of streams in the first transport block associated with the k-th reference signal resource, and RI(CW1) represents the number of streams in the second transport block associated with the k-th reference signal resource; where F(wbCQI(CW0)) represents the spectral efficiency corresponding to the broadband CQI of the first transport block associated with the k-th reference signal resource, and F(wbCQI(CW1)) represents the spectral efficiency corresponding to the broadband CQI of the second transport block associated with the k-th reference signal resource.

[0024] Alternatively, the priority of the M reference signal resources can also be determined based on the following formula:

[0025] Pri(CRI(k))=X1*(RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))+X2*CRI(k), formula (1);

[0027] Pri(CRI(k))=X1*(RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))-X2*CRI(k), formula (2);

[0029] Pri(CRI(k))=X1*(X3-((RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))))-X2*CRI(k), formula (4);

[0030] Based on the above technical solution, the priority of M reference signal resources can be determined based on the above formula. In formulas (1) and (2), the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource. In formulas (3) and (4), the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0031] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the RI, including: if the value of the RI of the first reference signal resource is greater than the value of the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0032] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the value of RI in the channel quality information corresponding to the reference signal resources. The larger the value of RI in the channel quality information corresponding to the reference signal resources, the higher the priority of the reference signal resources.

[0033] In conjunction with the first aspect, in some implementations of the first aspect, when the RI value of the first reference signal resource is the same as the RI value of the second reference signal resource, the priority of the M reference signal resources is determined based on the CQI and / or the CRI.

[0034] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the CQI, including: if the CQI value of the first reference signal resource is greater than the CQI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0035] Based on the above technical solution, when the RI of the first reference signal resource is the same as that of the second reference signal resource, the priority of the M reference signal resources can be determined based on CQI. The larger the value of CQI in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0036] In conjunction with the first aspect, in some implementations of the first aspect, the CQI is the CQI of the first transport block, or the CQI is the CQI of the second transport block.

[0037] In conjunction with the first aspect, in some implementations of the first aspect, if the CQI value of the first transmission block of the first reference signal resource is greater than the CQI value of the first transmission block of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0038] In conjunction with the first aspect, in some implementations of the first aspect, if the CQI value of the second transmission block of the first reference signal resource is greater than the CQI value of the second transmission block of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0039] In conjunction with the first aspect, in some implementations of the first aspect, when the CQI is the CQI of the first transport block, if the value of the CQI of the first reference signal resource is greater than the value of the CQI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0040] In conjunction with the first aspect, in some implementations of the first aspect, when the CQI value of the first transmission block of the first reference signal resource is the same as the CQI value of the first transmission block of the second reference signal resource, the priority of the M reference signal resources is determined based on the CQI or CRI of the second transmission block.

[0041] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the CQI of the second transmission block, including: if the CQI of the second transmission block of the first reference signal resource is greater than the CQI of the second transmission block of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0042] Based on the above technical solution, when determining the priority of M reference signal resources based on CQI, it can be determined first based on the CQI of the first transmission block of the reference signal resource. When the CQI of the first transmission block of the first reference signal resource is the same as the CQI of the first transmission block of the second reference signal resource, it can be determined based on the CQI of the second transmission block. The larger the value of the second transmission block in the channel state information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0043] In conjunction with the first aspect, in certain implementations of the first aspect, when the CQI value of the second transmission block of the first reference signal resource is the same as the CQI value of the second transmission block of the second reference signal resource, the priority of the M reference signal resources is determined based on the CRI, including: if the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0044] Based on the above scheme, when determining the priority of M reference signal resources based on CQI, if the CQI of the first transmission block of the first reference signal resource is the same as the CQI of the first transmission block of the second reference signal resource, and if the CQI of the second transmission block of the first reference signal resource is the same as the CQI of the second transmission block of the second reference signal resource, the priority can be determined based on CRI: the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource. Alternatively, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0045] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the CRI, including: if the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0046] Based on the above scheme, when the RI value of the first reference signal resource is the same as the RI value of the second reference signal resource, the priority of the M reference signal resources can be determined based on the CRI. Alternatively, when the RI value of the first reference signal resource is the same as the RI value of the second reference signal resource, the priority of the M reference signal resources can be determined first based on the CQI of the first transmission block, and when the CQI value of the first transmission block of the first reference signal resource is the same as the CQI value of the first transmission block of the second reference signal resource, the priority of the M reference signal resources can also be determined based on the CRI.

[0047] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the following formula: Pri(CRI(k))=X1*RI+X2*max{wbCQI(TB0),wbCQI(TB1)}+X4*CRI(k), Formula (5); where CRI(k) represents the CRI value of the k-th reference signal resource among the M reference signal resources, Pri(CRI(k)) represents the priority of the k-th reference signal resource among the M reference signal resources, and the value of k ranges from 1 to M; where X1>0, X2, X4≥0; where RI represents the number of streams associated with the k-th reference signal resource; where wbCQI(TB0) represents the broadband CQI value of the first transport block associated with the k-th reference signal resource, and wbCQI(TB1) represents the broadband CQI value of the second transport block associated with the k-th reference signal resource.

[0048] Alternatively, the priority of the M reference signal resources can also be determined based on the following formula:

[0049] Pri(CRI(k))=X1*RI+X2*wbCQI(TB0)+X3*wbCQI(TB1)-X4*CRI(k), formula (6);

[0050] Pri(CRI(k))=X1*RI+X2*max{wbCQI(TB0),wbCQI(TB1)}+X4*CRI(k), formula (7);

[0051] Pri(CRI(k))=X1*RI+X2*max{wbCQI(TB0),wbCQI(TB1)}-X4*CRI(k), formula (8);

[0052] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-wbCQI(TB0))+X3*(X7-wbCQI(TB1))+X4*CRI(k), formula (9);

[0053] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-wbCQI(TB0))+X3*(X7-wbCQI(TB1))-X4*CRI(k), formula (10);

[0054] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-max{wbCQI(TB0),wbCQI(TB1)})+X4*CRI(k), formula (11);

[0055] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-max{wbCQI(TB0),wbCQI(TB1)})-X4*CRI(k), formula (12);

[0056] Where X3≥0.

[0057] For example, the specific values ​​of X5, X6, and X7 can be fixed values ​​pre-agreed by the protocol or pre-configured by the network.

[0058] Based on the above technical solutions, the priorities of M reference signal resources can be determined based on the above formulas. In formulas (5), (6), (7), and (8), if X1 >> X2, or X1 >> X3, or X1 >> X4, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2, or X1 << X3, or X1 << X4, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource. In formulas (9), (10), (11), and (12), if X1 >> X2, or X1 >> X3, or X1 >> X4, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2, or X1 << X3, or X1 << X4, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0059] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the CQI, including: if the CQI of the first reference signal resource is greater than the CQI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0060] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the CQI value in the channel quality information corresponding to the reference signal resources. The larger the CQI value in the channel quality information corresponding to the reference signal resources, the higher the priority of the reference signal resources.

[0061] In conjunction with the first aspect, in some implementations of the first aspect, when the CQI of the first reference signal resource is the same as the CQI of the second reference signal resource, the priority of the M reference signal resources is determined based on the RI and / or the CRI.

[0062] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the RI, including: if the RI of the first reference signal resource is greater than the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the RI of the first reference signal resource is less than the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0063] Based on the above technical solution, when the CQI of the first reference signal resource is the same as that of the second reference signal resource, the priority of the M reference signal resources can be determined based on the value of RI. For example, the larger the value of RI in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0064] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the CRI, including: if the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0065] Based on the above technical solution, when the CQI of the first reference signal resource is the same as that of the second reference signal resource, the priority of the M reference signal resources can be determined based on the value of CRI.

[0066] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the RI and the CRI, including: if the RI of the first reference signal resource is greater than the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; when the RI of the first reference signal resource is equal to the RI of the second reference signal resource, if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0067] Based on the above technical solution, when the CQI of the first reference signal resource is the same as that of the second reference signal resource, the priority of the M reference signal resources can be determined based on the values ​​of RI and CRI. If the RI value of the first reference signal resource is greater than the RI value of the second reference signal resource, then the priority of the first reference signal resource is higher than that of the second reference signal resource; if the RI value of the first reference signal resource is equal to the RI value of the second reference signal resource, the priority can be further determined based on the value of CRI.

[0068] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the following formula: Pri(CRI(k))=X1*(X6-F(wbCQI))+X2*(X5-RI)+X3*CRI(k), Formula (15); where F(wbCQI)=wbCQI(TB0), or, F(wbCQI)=wbCQI(TB1), or, F(wbCQI)=max{wbCQI(TB0),wbCQI(TB1)}, or, F(wbCQI)=A1*wbCQI(TB0)+A2*wbCQI(TB1); where CRI(k) represents the CRI value of the reference signal resource ranked kth among the M reference signal resources, and Pri(CRI(k)) represents the priority of the reference signal resource ranked kth among the M reference signal resources. The priority of the k-th reference signal resource, where k ranges from 1 to M; where X1, A1, A2, X5, X6 > 0, and X2, X3 ≥ 0; where RI represents the number of streams associated with the k-th reference signal resource; where F(wbCQI) represents the broadband CQI value of the channel state information, wbCQI(TB0) represents the broadband CQI value of the first transport block associated with the k-th reference signal resource, and wbCQI(TB1) represents the broadband CQI value of the second transport block associated with the k-th reference signal resource.

[0069] Alternatively, the priority of the M reference signal resources can also be determined based on the following formula:

[0070] Pri(CRI(k))=X1*F(wbCQI)+X2*RI+X3*CRI(k), formula (13);

[0071] Pri(CRI(k))=X1*F(wbCQI)+X2*RI-X3*CRI(k), formula (14);

[0072] Pri(CRI(k))=X1*(X6-F(wbCQI))+X2*(X5-RI)-X3*CRI(k), formula (16);

[0073] Where, F(wbCQI) = wbCQI(TB0), or,

[0074] F(wbCQI) = wbCQI(TB1), or,

[0075] F(wbCQI) = max{wbCQI(TB0), wbCQI(TB1)}, or,

[0076] F(wbCQI)=A1*wbCQI(TB0)+A2*wbCQI(TB1).

[0077] Based on the above technical solutions, the priorities of M reference signal resources can be determined using the above formulas. In formulas (13) and (14), if X1 >> X2 and X1 >> X3, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2 and X1 << X3, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource. In formulas (15) and (16), if X1 >> X2 >> X3, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2 << X3, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0078] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the CRI.

[0079] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the CRI values ​​in the measured M channel state information.

[0080] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the CRI, including: if the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0081] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the following formula: Pri(CRI(k)) = X1*CRI(k); where CRI(k) represents the CRI value of the reference signal resource ranked kth among the M reference signal resources, Pri(CRI(k)) represents the priority of the reference signal resource ranked kth among the M reference signal resources, and the value of k ranges from 1 to M; where X1 > 0.

[0082] Based on the above technical solution, the priority of M reference signal resources can be determined based on the above formula. In the above formula (17), if the value of Pri(CRI(k)) is larger, it means that the priority of the reference signal resource is higher; or, if the value of Pri(CRI(k)) is smaller, it means that the priority of the reference signal resource is higher.

[0083] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the PMI.

[0084] Based on the above technical solution, the priority of M reference signal resources can be determined based on the PMI in the measured M channel state information.

[0085] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the PMI, including: the priority of the M reference signal resources is determined based on the PMI quantization precision or the PMI quantization bit number.

[0086] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the PMI quantization accuracy or the PMI quantization bit number.

[0087] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the PMI quantization precision, including: if the PMI quantization precision of the first reference signal resource is greater than the PMI quantization precision of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0088] In conjunction with the first aspect, in some implementations of the first aspect, the PMI quantization accuracy is related to the codebook used during PMI quantization. For example, the first reference signal resource uses the type I codebook for PMI quantization, and the second reference signal resource uses the R15 type II codebook for PMI quantization. The priority of the first reference signal resource is higher than that of the second reference signal resource.

[0089] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the M reference signal resources is determined based on the number of PMI quantization bits, including: if the number of PMI quantization bits of the first reference signal resource is less than the number of PMI quantization bits of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0090] In conjunction with the first aspect, in some implementations of the first aspect, the first reference signal resource is M, indicated by the network device, which requires the reporting of channel state information. R A first type of reference signal resource, the second reference signal resource being MM. R A second type of reference signal resource.

[0091] In conjunction with the first aspect, in some implementations of the first aspect, second configuration information may also be received, the second configuration information being used to indicate the configuration of the M by the network device. R One Class I reference signal resource, and / or M R The value of .

[0092] In conjunction with the first aspect, in some implementations of the first aspect, the second configuration information may be carried in at least one of the following signaling: radio resource control (RRC) signaling, downlink control information (DCI) signaling, and medium access control-control (MAC-CE) signaling.

[0093] In conjunction with the first aspect, in certain implementations of the first aspect, the order of the M channel state information items in the channel state information field is determined based on the priority of the M reference signal resources, including: the priority of the M reference signal resources is determined based on the category of the M reference signal resources, wherein the M reference signal resources include first reference signal resources and second reference signal resources, the first reference signal resources are MR first-category reference signal resources indicated by the network device that need to report channel state information, and the second reference signal resources are MM R A second type of reference signal resource.

[0094] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the category of the M reference signal resources. This category is determined by whether the network device indicates that the channel state information of the reference signal resources needs to be reported. In other words, the priority of the M reference signal resources is determined based on whether the network device indicates that the M reference signal resources need to report channel state information.

[0095] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the first reference signal resource is higher than that of the second reference signal resource. Therefore, in the channel state information field, the bits occupied by the channel state information corresponding to the first reference signal resource are more important than the bits occupied by the channel state information corresponding to the second reference signal resource.

[0096] Based on the above technical solution, in the channel state information field, the channel state information of the first reference signal resource can occupy relatively important bits, while the channel state information of the second reference signal resource can occupy relatively unimportant bits.

[0097] In conjunction with the first aspect, in some implementations of the first aspect, the importance of bits in the channel state information field decreases from left to right. The channel state information of the first reference signal resource occupies the leftmost bit in the channel state information field, and the channel state information of the second reference signal resource occupies the rightmost bit in the channel state information field.

[0098] In conjunction with the first aspect, in some implementations of the first aspect, the priority of the first reference signal resource is higher than that of the second reference signal resource. In the channel state information field, the bits occupied by the channel state information corresponding to the first reference signal resource are interleaved with the bits occupied by the channel state information corresponding to the second reference signal resource.

[0099] Based on the above technical solution, in the channel state information field, the channel state information of the first reference signal resource and the channel state information of the second reference signal resource can be arranged alternately in the bit positions, or in other words, the channel state information of the first reference signal resource and the channel state information of the second reference signal resource can be arranged alternately in the bit positions.

[0100] In conjunction with the first aspect, in some implementations of the first aspect, the cross arrangement includes: the priority of a first priority reference signal resource in the first reference signal resource is higher than the priority of a first priority reference signal resource in the second reference signal resource, and the priority of a first priority reference signal resource in the second reference signal resource is higher than the priority of a second priority reference signal resource in the second reference signal resource.

[0101] Among them, the first priority reference signal resource in the first reference signal resource can be understood as M. R The reference signal resource with the highest priority among the first reference signal resources; the reference signal resource with the highest priority among the second reference signal resources can be understood as MM. R The highest priority reference signal resource among all reference signal resources.

[0102] Based on the above technical solution, in the channel state information field, "interleaved arrangement" refers to the fact that the M reference signal resources in the first reference signal resource have priority, and the M reference signal resources in the second reference signal resource have priority. R Each reference signal resource has a priority, so in the channel state information field, M can be prioritized. R The first priority reference signal resource M0 is then arranged into MM. R The first priority reference signal resource M of the reference signal resources R Then arrange M. R The second priority reference signal resource M1 of the reference signal resources is then arranged into MM. R The first priority reference signal resource M of the reference signal resources R+1 And so on, arranged in an alternating pattern.

[0103] In conjunction with the first aspect, in some implementations of the first aspect, the channel state information corresponding to the first reference signal resource includes M. R Channel state information and MM R Channel state information, the M R Channel state information or the MM R The order of the channel state information in the channel state information field is determined based on any of the priority determination methods mentioned above.

[0104] Based on the above technical solution, M R The priority of a reference signal resource within a reference signal resource can be determined according to the method described in any of the above aspects. Similarly, MM R The reference signal resources in a reference signal resource can also be determined according to the methods described in any of the above aspects.

[0105] In conjunction with the first aspect, in some implementations of the first aspect, M reference signal resource indices are sent, wherein each of the M reference signal resource indices corresponds one-to-one with the M reference signal resources; or, a first reference signal index and a second reference signal index are sent, wherein the first reference signal index is used to indicate M of the M reference signal resources that the network device indicates needs to report channel state information. R An index of a reference signal resource, the second reference signal index being used to indicate the MM R An index of a reference signal resource.

[0106] Secondly, a communication method is provided. This method can be applied to the network side; that is, it can be executed by a network device or by a component of the network device (such as a chip, chip system, or circuit). This application does not limit the scope of the method. The following description mainly uses a network device as an example.

[0107] The method may include: sending first configuration information, the first configuration information being used to configure Ks reference signal resources and channel state information that the terminal device needs to report; receiving M channel state information, the order of the M channel state information in the channel state information field being determined based on the priority of the M reference signal resources among the Ks reference signal resources.

[0108] Where M is less than or equal to Ks.

[0109] Based on the above technical solution, after the network device sends the first configuration information to the terminal device, it can receive measurements of Ks reference signal resources based on the first configuration information from the terminal device, select M reference signal resources from them, and obtain M channel state information. Furthermore, these M channel state information are arranged in the channel state information field according to the priority order of the M reference signal resources. In this way, when the uplink channel's bit capacity is limited, the terminal device can select the appropriate reference signal resource's channel state information for reporting based on the priority of the M reference signal resources, reducing the impact on user transmission capacity.

[0110] In conjunction with the second aspect, in some implementations of the second aspect, the M reference signal resources include a first reference signal resource and a second reference signal resource, and the first reference signal resource has a higher priority than the second reference signal resource. Therefore, in the channel state information field, the bits occupied by the channel state information corresponding to the first reference signal resource are more important than the bits occupied by the channel state information corresponding to the second reference signal resource.

[0111] Based on the above technical solution, in the channel state information field, the channel state information of reference signal resources with relatively high priority can occupy relatively important bits, while the channel state information of reference signal resources with relatively low priority can occupy relatively unimportant bits.

[0112] In conjunction with the second aspect, in some implementations of the second aspect, in the channel state information field, the importance of the bits decreases from left to right, and the M channel state information information are arranged in the channel state information field from left to right in order of priority from high to low.

[0113] In conjunction with the second aspect, in some implementations of the second aspect, the order of the M channel state information in the channel state information field is determined based on the priority of the M reference signal resources, including: the priority of the M reference signal resources is determined based on at least one of the following parameters: CSI-RS resource indicator (CRI), rank indicator (RI), precoding matrix indicator (PMI), and channel quality indicator (CQI).

[0114] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the parameters of the measured M channel state information, or in other words, the priority of the M reference signal resources is determined based on the reported content in the M channel quality information.

[0115] Optionally, the content of the M channel quality information corresponding to the M reference signal resources includes at least one of the following parameters: CSI-RS resource indicator (CRI), rank indicator (RI), precoding matrix indicator (PMI), channel quality indicator (CQI), precoding matrix indicator (PMI), etc.

[0116] Optionally, the M channel quality information may also include other measurement parameters, which are not limited in this embodiment.

[0117] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the RI and the CQI, including: the priority of the M reference signal resources is determined based on the channel capacity; if the channel capacity of the first reference signal resource is greater than the channel capacity of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource, wherein the channel capacity is determined based on the RI and the CQI.

[0118] Based on the above technical solution, the channel capacity can be determined based on RI and CQI, and the priority of the M reference signal resources can be determined based on the channel capacity. The larger the channel capacity in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0119] In conjunction with the second aspect, in some implementations of the second aspect, when the channel capacity of the first reference signal resource is equal to the channel capacity of the second reference signal resource, the priority of the M reference signal resources is determined based on the size of the CRI.

[0120] Based on the above technical solution, when the channel capacity of the first reference signal resource is equal to the channel capacity of the second reference signal resource, the priority of the M reference signal resources can be determined based on the value of CRI.

[0121] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the magnitude of the CRI, including: if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0122] Based on the above technical solution, the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource. Alternatively, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0123] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the following formula:

[0124] Pri(CRI(k))=X1*(X3-((RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))))+X2*CRI(k); Formula (3); where CRI(k) represents the CRI value of the k-th reference signal resource among the M reference signal resources, Pri(CRI(k)) represents the priority of the k-th reference signal resource among the M reference signal resources, and the value of k ranges from 1 to M; where X1>>X2, and X1, X 3 > 0, X2 ≥ 0; where RI(CW0) represents the number of streams in the first transport block associated with the k-th reference signal resource, and RI(CW1) represents the number of streams in the second transport block associated with the k-th reference signal resource; where F(wbCQI(CW0)) represents the spectral efficiency corresponding to the broadband CQI of the first transport block associated with the k-th reference signal resource, and F(wbCQI(CW1)) represents the spectral efficiency corresponding to the broadband CQI of the second transport block associated with the k-th reference signal resource.

[0125] Alternatively, the priority of the M reference signal resources can also be determined based on the following formula:

[0126] Pri(CRI(k))=X1*(RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))+X2*CRI(k), formula (1);

[0128] Pri(CRI(k))=X1*(RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))-X2*CRI(k), formula (2);

[0130] Pri(CRI(k))=X1*(X3-((RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))))-X2*CRI(k), formula (4);

[0131] Based on the above technical solution, the priority of M reference signal resources can be determined based on the above formula. In formulas (1) and (2), the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource. In formulas (3) and (4), the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0132] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the RI, including: if the value of the RI of the first reference signal resource is greater than the value of the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0133] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the value of RI in the channel quality information corresponding to the reference signal resources. The larger the value of RI in the channel quality information corresponding to the reference signal resources, the higher the priority of the reference signal resources.

[0134] In conjunction with the second aspect, in some implementations of the second aspect, when the RI value of the first reference signal resource is the same as the RI value of the second reference signal resource, the priority of the M reference signal resources is determined based on the CQI and / or the CRI.

[0135] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the CQI, including: if the CQI value of the first reference signal resource is greater than the CQI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0136] Based on the above technical solution, when the RI of the first reference signal resource is the same as that of the second reference signal resource, the priority of the M reference signal resources can be determined based on CQI. The larger the value of CQI in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0137] In conjunction with the second aspect, in some implementations of the second aspect, the CQI is the CQI of the first transport block, or the CQI is the CQI of the second transport block.

[0138] In conjunction with the second aspect, in some implementations of the second aspect, if the CQI value of the first transmission block of the first reference signal resource is greater than the CQI value of the first transmission block of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0139] In conjunction with the second aspect, in some implementations of the second aspect, if the CQI value of the second transmission block of the first reference signal resource is greater than the CQI value of the second transmission block of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0140] In conjunction with the second aspect, in some implementations of the second aspect, when the CQI is the CQI of the first transport block, if the value of the CQI of the first reference signal resource is greater than the value of the CQI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0141] In conjunction with the second aspect, in some implementations of the second aspect, when the CQI value of the first transmission block of the first reference signal resource is the same as the CQI value of the first transmission block of the second reference signal resource, the priority of the M reference signal resources is determined based on the CQI or CRI of the second transmission block.

[0142] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the CQI of the second transmission block, including: if the CQI of the second transmission block of the first reference signal resource is greater than the CQI of the second transmission block of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0143] Based on the above technical solution, when determining the priority of M reference signal resources based on CQI, it can be determined first based on the CQI of the first transmission block of the reference signal resource. When the CQI of the first transmission block of the first reference signal resource is the same as the CQI of the first transmission block of the second reference signal resource, it can be determined based on the CQI of the second transmission block. The larger the value of the second transmission block in the channel state information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0144] In conjunction with the second aspect, in some implementations of the second aspect, when the CQI value of the second transmission block of the first reference signal resource is the same as the CQI value of the second transmission block of the second reference signal resource, the priority of the M reference signal resources is determined based on the CRI, including: if the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0145] Based on the above scheme, when determining the priority of M reference signal resources based on CQI, if the CQI of the first transmission block of the first reference signal resource is the same as the CQI of the first transmission block of the second reference signal resource, and if the CQI of the second transmission block of the first reference signal resource is the same as the CQI of the second transmission block of the second reference signal resource, the priority can be determined based on CRI: the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource. Alternatively, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0146] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the CRI, including: if the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0147] Based on the above scheme, when the RI value of the first reference signal resource is the same as the RI value of the second reference signal resource, the priority of the M reference signal resources can be determined based on the CRI. Alternatively, when the RI value of the first reference signal resource is the same as the RI value of the second reference signal resource, the priority of the M reference signal resources can be determined first based on the CQI of the first transmission block, and when the CQI value of the first transmission block of the first reference signal resource is the same as the CQI value of the first transmission block of the second reference signal resource, the priority of the M reference signal resources can also be determined based on the CRI.

[0148] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the following formula: Pri(CRI(k))=X1*RI+X2*max{wbCQI(TB0),wbCQI(TB1)}+X4*CRI(k), Formula (5); where CRI(k) represents the CRI value of the k-th reference signal resource among the M reference signal resources, Pri(CRI(k)) represents the priority of the k-th reference signal resource among the M reference signal resources, and the value of k ranges from 1 to M; where X1>0, X2, X4≥0; where RI represents the number of streams associated with the k-th reference signal resource; where wbCQI(TB0) represents the broadband CQI value of the first transport block associated with the k-th reference signal resource, and wbCQI(TB1) represents the broadband CQI value of the second transport block associated with the k-th reference signal resource.

[0149] Alternatively, the priority of the M reference signal resources can also be determined based on the following formula:

[0150] Pri(CRI(k))=X1*RI+X2*wbCQI(TB0)+X3*wbCQI(TB1)-X4*CRI(k), formula (6);

[0151] Pri(CRI(k))=X1*RI+X2*max{wbCQI(TB0),wbCQI(TB1)}+X4*CRI(k), formula (7);

[0152] Pri(CRI(k))=X1*RI+X2*max{wbCQI(TB0),wbCQI(TB1)}-X4*CRI(k), formula (8);

[0153] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-wbCQI(TB0))+X3*(X7-wbCQI(TB1))+X4*CRI(k), formula (9);

[0154] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-wbCQI(TB0))+X3*(X7-wbCQI(TB1))-X4*CRI(k), formula (10);

[0155] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-max{wbCQI(TB0),wbCQI(TB1)})+X4*CRI(k), formula (11);

[0156] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-max{wbCQI(TB0),wbCQI(TB1)})-X4*CRI(k), formula (12);

[0157] Where X3≥0.

[0158] For example, the specific values ​​of X5, X6, and X7 can be fixed values ​​pre-agreed by the protocol or pre-configured by the network.

[0159] Based on the above technical solutions, the priorities of M reference signal resources can be determined based on the above formulas. In formulas (5), (6), (7), and (8), if X1 >> X2, or X1 >> X3, or X1 >> X4, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2, or X1 << X3, or X1 << X4, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource. In formulas (9), (10), (11), and (12), if X1 >> X2, or X1 >> X3, or X1 >> X4, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2, or X1 << X3, or X1 << X4, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0160] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the CQI, including: if the CQI of the first reference signal resource is greater than the CQI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0161] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the CQI value in the channel quality information corresponding to the reference signal resources. The larger the CQI value in the channel quality information corresponding to the reference signal resources, the higher the priority of the reference signal resources.

[0162] In conjunction with the second aspect, in some implementations of the second aspect, when the CQI of the first reference signal resource is the same as the CQI of the second reference signal resource, the priority of the M reference signal resources is determined based on the RI and / or the CRI.

[0163] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the RI, including: if the RI of the first reference signal resource is greater than the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the RI of the first reference signal resource is less than the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0164] Based on the above technical solution, when the CQI of the first reference signal resource is the same as that of the second reference signal resource, the priority of the M reference signal resources can be determined based on the value of RI. For example, the larger the value of RI in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0165] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the CRI, including: if the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0166] Based on the above technical solution, when the CQI of the first reference signal resource is the same as that of the second reference signal resource, the priority of the M reference signal resources can be determined based on the value of CRI.

[0167] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the RI and the CRI, including: if the RI of the first reference signal resource is greater than the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; when the RI of the first reference signal resource is equal to the RI of the second reference signal resource, if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0168] Based on the above technical solution, when the CQI of the first reference signal resource is the same as that of the second reference signal resource, the priority of the M reference signal resources can be determined based on the values ​​of RI and CRI. If the RI value of the first reference signal resource is greater than the RI value of the second reference signal resource, then the priority of the first reference signal resource is higher than that of the second reference signal resource; if the RI value of the first reference signal resource is equal to the RI value of the second reference signal resource, the priority can be further determined based on the value of CRI.

[0169] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the following formula: Pri(CRI(k))=X1*(X6-F(wbCQI))+X2*(X5-RI)+X3*CRI(k), Formula (15); where F(wbCQI)=wbCQI(TB0), or, F(wbCQI)=wbCQI(TB1), or, F(wbCQI)=max{wbCQI(TB0),wbCQI(TB1)}, or, F(wbCQI)=A1*wbCQI(TB0)+A2*wbCQI(TB1); where CRI(k) represents the CRI value of the reference signal resource ranked kth among the M reference signal resources, and Pri(CRI(k)) represents the priority of the reference signal resource ranked kth among the M reference signal resources. The priority of the k-th reference signal resource, where k ranges from 1 to M; where X1, A1, A2, X5, X6 > 0, and X2, X3 ≥ 0; where RI represents the number of streams associated with the k-th reference signal resource; where F(wbCQI) represents the broadband CQI value of the channel state information, wbCQI(TB0) represents the broadband CQI value of the first transport block associated with the k-th reference signal resource, and wbCQI(TB1) represents the broadband CQI value of the second transport block associated with the k-th reference signal resource.

[0170] Alternatively, the priority of the M reference signal resources can also be determined based on the following formula:

[0171] Pri(CRI(k))=X1*F(wbCQI)+X2*RI+X3*CRI(k), formula (13);

[0172] Pri(CRI(k))=X1*F(wbCQI)+X2*RI-X3*CRI(k), formula (14);

[0173] Pri(CRI(k))=X1*(X6-F(wbCQI))+X2*(X5-RI)-X3*CRI(k), formula (16);

[0174] Where, F(wbCQI) = wbCQI(TB0), or,

[0175] F(wbCQI) = wbCQI(TB1), or,

[0176] F(wbCQI) = max{wbCQI(TB0), wbCQI(TB1)}, or,

[0177] F(wbCQI)=A1*wbCQI(TB0)+A2*wbCQI(TB1).

[0178] Based on the above technical solutions, the priorities of M reference signal resources can be determined using the above formulas. In formulas (13) and (14), if X1 >> X2 and X1 >> X3, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2 and X1 << X3, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource. In formulas (15) and (16), if X1 >> X2 >> X3, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2 << X3, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0179] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the CRI.

[0180] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the CRI values ​​in the measured M channel state information.

[0181] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the CRI, including: if the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0182] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the following formula: Pri(CRI(k)) = X1*CRI(k); where CRI(k) represents the CRI value of the reference signal resource ranked kth among the M reference signal resources, Pri(CRI(k)) represents the priority of the reference signal resource ranked kth among the M reference signal resources, and the value of k ranges from 1 to M; where X1 > 0.

[0183] Based on the above technical solution, the priority of M reference signal resources can be determined based on the above formula. In the above formula (17), if the value of Pri(CRI(k)) is larger, it means that the priority of the reference signal resource is higher; or, if the value of Pri(CRI(k)) is smaller, it means that the priority of the reference signal resource is higher.

[0184] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the PMI.

[0185] Based on the above technical solution, the priority of M reference signal resources can be determined based on the PMI in the measured M channel state information.

[0186] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the PMI, including: the priority of the M reference signal resources is determined based on the PMI quantization precision or the PMI quantization bit number.

[0187] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the PMI quantization accuracy or the PMI quantization bit number.

[0188] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the PMI quantization precision, including: if the PMI quantization precision of the first reference signal resource is greater than the PMI quantization precision of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0189] In conjunction with the second aspect, in some implementations of the second aspect, the PMI quantization accuracy is related to the codebook used during PMI quantization. For example, the first reference signal resource uses a type I codebook for PMI quantization, and the second reference signal resource uses an R15 type II codebook for PMI quantization. The priority of the first reference signal resource is higher than that of the second reference signal resource.

[0190] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the M reference signal resources is determined based on the number of PMI quantization bits, including: if the number of PMI quantization bits of the first reference signal resource is less than the number of PMI quantization bits of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0191] In conjunction with the second aspect, in some implementations of the second aspect, the first reference signal resource is M, indicated by the network device, which requires the reporting of channel state information. R A first type of reference signal resource, the second reference signal resource being MM. R A second type of reference signal resource.

[0192] In conjunction with the second aspect, in some implementations of the second aspect, second configuration information may also be received, the second configuration information being used to indicate the configuration of the M by the network device. R One Class I reference signal resource, and / or M R The value of .

[0193] In conjunction with the second aspect, in some implementations of the second aspect, the second configuration information may be carried in at least one of the following signaling: RRC signaling, DCI signaling, and MAC-CE signaling.

[0194] In conjunction with the second aspect, in some implementations of the second aspect, the order of the M channel state information items in the channel state information field is determined based on the priority of the M reference signal resources, including: the priority of the M reference signal resources is determined based on the category of the M reference signal resources, wherein the M reference signal resources include a first reference signal resource and a second reference signal resource, and the first reference signal resource is the M reference signal resources indicated by the network device that need to report channel state information. R A first type of reference signal resource, the second reference signal resource being MM. R A second type of reference signal resource.

[0195] Based on the above technical solution, the priority of the M reference signal resources can be determined based on the category of the M reference signal resources. This category is determined by whether the network device indicates that the channel state information of the reference signal resources needs to be reported. In other words, the priority of the M reference signal resources is determined based on whether the network device indicates that the M reference signal resources need to report channel state information.

[0196] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the first reference signal resource is higher than the priority of the second reference signal resource. Therefore, in the channel state information field, the bits occupied by the channel state information corresponding to the first reference signal resource are more important than the bits occupied by the channel state information corresponding to the second reference signal resource.

[0197] Based on the above technical solution, in the channel state information field, the channel state information of the first reference signal resource can occupy relatively important bits, while the channel state information of the second reference signal resource can occupy relatively unimportant bits.

[0198] In conjunction with the second aspect, in some implementations of the second aspect, the importance of bits in the channel state information field decreases from left to right. The channel state information of the first reference signal resource occupies the leftmost bit in the channel state information field, and the channel state information of the second reference signal resource occupies the rightmost bit in the channel state information field.

[0199] In conjunction with the second aspect, in some implementations of the second aspect, the priority of the first reference signal resource is higher than that of the second reference signal resource. In the channel state information field, the bits occupied by the channel state information corresponding to the first reference signal resource and the bits occupied by the channel state information corresponding to the second reference signal resource are arranged alternately.

[0200] Based on the above technical solution, in the channel state information field, the channel state information of the first reference signal resource and the channel state information of the second reference signal resource can be arranged alternately in the bit positions, or in other words, the channel state information of the first reference signal resource and the channel state information of the second reference signal resource can be arranged alternately in the bit positions.

[0201] In conjunction with the second aspect, in some implementations of the second aspect, the cross arrangement includes: the priority of a first priority reference signal resource in the first reference signal resource is higher than the priority of a first priority reference signal resource in the second reference signal resource, and the priority of a first priority reference signal resource in the second reference signal resource is higher than the priority of a second priority reference signal resource in the second reference signal resource.

[0202] Among them, the first priority reference signal resource in the first reference signal resource can be understood as M. R The reference signal resource with the highest priority among the first two reference signal resources; the reference signal resource with the highest priority among the second reference signal resources can be understood as MM. R The highest priority reference signal resource among all reference signal resources.

[0203] Based on the above technical solution, in the channel state information field, "interleaved arrangement" refers to the fact that the M reference signal resources in the first reference signal resource have priority, and the M reference signal resources in the second reference signal resource have priority. R Each reference signal resource has a priority, so in the channel state information field, M can be prioritized. R The first priority reference signal resource M0 is then arranged into MM. R The first priority reference signal resource M of the reference signal resources R Then arrange M. R The second priority reference signal resource M1 of the reference signal resources is then arranged into MM. R The first priority reference signal resource M of the reference signal resources R+1 And so on, arranged in a crisscross pattern.

[0204] In conjunction with the second aspect, in some implementations of the second aspect, the channel state information corresponding to the M reference signal resources includes M R Channel state information and MM R Channel state information, the M R Channel state information or the MM R The order of the channel state information in the channel state information field is determined based on any of the priority determination methods mentioned above.

[0205] Based on the above technical solution, M R The priority of a reference signal resource within a reference signal resource can be determined according to the method described in any of the above aspects. Similarly, MM R The reference signal resources in a reference signal resource can also be determined according to the methods described in any of the above aspects.

[0206] In conjunction with the second aspect, in some implementations of the second aspect, M reference signal resource indices are received, wherein each of the M reference signal resource indices corresponds one-to-one with the M reference signal resources; or, a first reference signal index and a second reference signal index are received, wherein the first reference signal index is used to indicate the M reference signal resources among which the network device indicates that channel state information needs to be reported. R An index of a reference signal resource, the second reference signal index being used to indicate the MM R An index of a reference signal resource.

[0207] Thirdly, a communication apparatus is provided for performing the method in any possible implementation of the first or second aspect described above. Specifically, the apparatus may include units and / or modules for performing the method in any possible implementation of the first or second aspect, such as processing units and / or communication units.

[0208] In one implementation, the device is a communication device (such as a terminal device or a network device). When the device is a communication device, the communication unit can be a transceiver or an input / output interface; the processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0209] In another implementation, the device is a chip, chip system, circuit, or communication module for communication equipment (such as terminal equipment or network equipment). When the device is a chip, chip system, or circuit for communication equipment, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; the processing unit may be at least one processor, processing circuit, or logic circuit.

[0210] Fourthly, a communication device is provided, comprising: at least one processor for executing a computer program or instructions to perform the method in any possible implementation of the first or second aspect described above. Optionally, the device further comprises a memory for storing the computer program or instructions. Optionally, the device further comprises a communication interface coupled to the processor, which can be used to input the computer program or instructions to the processor or to output information from the processor.

[0211] In one implementation, the device is a communication device (such as a terminal device or a network device).

[0212] In another implementation, the device is a chip, chip system, circuit, or communication module for communication equipment (such as terminal equipment or network equipment).

[0213] Fifthly, a processor is provided for performing the methods provided in the first or second aspect above.

[0214] Unless otherwise specified, or if it does not contradict its actual function or internal logic in the relevant description, the transmission and acquisition / reception operations involved in the processor can be understood as processor output and reception, input and other operations, or as transmission and reception operations performed by radio frequency circuits and antennas. This application does not limit them in this regard.

[0215] Optionally, the device further includes: a memory for storing a program; correspondingly, at least one processor for executing the computer program or instructions in the memory.

[0216] Optionally, the device also includes a communication interface. The communication interface is coupled to the processor and can be used to input information to the processor or output information from the processor.

[0217] In a sixth aspect, a computer-readable storage medium is provided that stores program code for execution by a device, the program code including methods for performing any possible implementation of the first or second aspect described above.

[0218] In a seventh aspect, a computer program product containing instructions is provided, which, when run on a computer, causes the computer to perform the method in any possible implementation of the first or second aspect described above.

[0219] Eighthly, a chip is provided, the chip including a processor and a communication interface, the processor reading instructions from a memory through the communication interface and executing the method provided by any of the above implementations of the first or second aspect.

[0220] Optionally, the chip is a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip containing a modem core or a system-in-package (SIP) chip.

[0221] Optionally, as one implementation, the chip also includes a memory storing computer programs or instructions, and a processor for executing the computer programs or instructions in the memory. When the computer programs or instructions are executed, the processor is used to perform the method provided by any of the above implementations of the first or second aspect.

[0222] Ninth aspect, a computer program product containing instructions is provided, which, when run on a computer, causes the computer to perform the method provided by any of the above implementations of the first aspect.

[0223] In a tenth aspect, a communication system is provided, including the aforementioned terminal equipment and network equipment. Attached Figure Description

[0224] Figure 1 This is a schematic diagram of a wireless communication system applicable to embodiments of this application.

[0225] Figure 2 A schematic diagram of the communication network element structure between network devices and terminal devices in this application is shown.

[0226] Figure 3 This is another schematic diagram of a wireless communication system applicable to embodiments of this application.

[0227] Figure 4 This is a schematic diagram of a CSI measurement reporting method 400 provided in an embodiment of this application.

[0228] Figure 5 This is a schematic diagram of the HBF architecture on the network device side.

[0229] Figure 6 This is a schematic diagram of the terminal equipment to be scheduled.

[0230] Figure 7 This is a schematic diagram of a communication method 700 provided in an embodiment of this application.

[0231] Figure 8 This is a schematic diagram of a communication device 800 provided in an embodiment of this application.

[0232] Figure 9 This is a schematic diagram of another communication device 900 provided in an embodiment of this application.

[0233] Figure 10 This is a schematic diagram of a chip system 1000 provided in an embodiment of this application. Detailed Implementation

[0234] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0235] The technical solutions provided in this application can be applied to various communication systems, such as 5th generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, and LTE time division duplex (TDD) systems. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation (6G) mobile communication systems. The technical solutions provided in this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and Internet of Things (IoT) communication systems. The technical solutions provided in this application can also be applied to low-frequency scenarios, high-frequency scenarios, and terahertz frequencies.

[0236] The technical solutions provided in this application can also be applied to non-terrestrial network (NTN) systems such as inter-satellite communication and satellite communication. As an example, a satellite communication system includes a satellite base station and terminal equipment. The satellite base station provides communication services to the terminal equipment. The satellite base station can also communicate with other base stations. A satellite can act as a base station or as a terminal device. Here, "satellite" can refer to unmanned aerial vehicles (UAVs), hot air balloons, low-Earth orbit (LEO) satellites, medium-Earth orbit (MEO) satellites, high-Earth orbit (HEO) satellites, etc. "Satellite" can also refer to non-terrestrial base stations or non-terrestrial equipment, etc.

[0237] In a communication system, a device can send signals to or receive signals from another device. These signals can include information, signaling, or data. The term "device" can also be replaced by an entity, network entity, network element, communication equipment, communication module, node, communication node, etc. This disclosure uses "device" as an example. For instance, a communication system can include at least one terminal device and at least one network device. The network device can send downlink signals to the terminal device, and / or the terminal device can send uplink signals to the network device.

[0238] The terminal device in this application embodiment can be a device or module that accesses the aforementioned communication system and has corresponding communication functions. The terminal device can include various devices with wireless communication capabilities, which can be used to connect people, objects, machines, etc. The terminal device can be widely applied in various scenarios, such as: cellular communication, D2D, V2X, peer-to-peer (P2P), M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery, etc. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. Terminal equipment can be user equipment (UE), terminal, fixed equipment, mobile station equipment or mobile equipment, subscriber unit, handheld device, vehicle-mounted equipment, wearable device, cellular phone, smartphone, session initiation protocol (SIP) phone, wireless data card, personal digital assistant (PDA), computer, tablet computer, laptop computer, wireless modem, handset, laptop computer, computer with wireless transceiver capability, smart book, vehicle, satellite, global positioning system (GPS) device, target tracking device, aircraft (e.g., drone, helicopter, multiple helicopters, four helicopters, or airplanes), ship, remote control device, smart home device, industrial equipment, transportation vehicle with wireless communication capability, communication module, or roadside unit with terminal function, all conforming to the 3GPP standard. The terminal device (RSU) can be a unit or a device built into the aforementioned equipment (e.g., a communication module, modem, or chip in the aforementioned equipment), or other processing devices connected to a wireless modem. For ease of description, the terminal device will be described below as a terminal or UE.

[0239] It should be understood that in certain scenarios, a UE can also be used as a base station. For example, a UE can act as a scheduling entity, providing sidelink signaling between UEs in scenarios such as V2X, D2D, or P2P.

[0240] In this embodiment, the device for implementing the functions of a terminal device, i.e., the terminal device, can be the terminal device itself, or it can be any device capable of supporting the terminal device in implementing the functions, such as a chip system, chip, circuit, or communication module (i.e., a communication module that performs communication functions). This device can be installed in the terminal device. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. Furthermore, the device can also be configured with program instructions for performing corresponding communication functions.

[0241] The network device in this application embodiment can be a device or module with corresponding communication functions. The network device can be a device used to communicate with terminal devices; it can also be called an access network device or a wireless access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitter, master station, auxiliary station, motor slide retainer (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. Base stations can also be mobile switching centers, devices that perform base station functions in D2D, V2X, and M2M communications, network-side devices in 6G networks, and devices that perform base station functions in future communication systems. Base stations can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0242] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0243] In some deployments, the network devices mentioned in the embodiments of this application may be devices including CU, DU, or CU and DU, or devices with control plane CU nodes (central unit-control plane (CU-CP)) and user plane CU nodes (central unit-user plane (CU-UP)) and DU nodes. For example, the network devices may include gNB-CU-CP, gNB-CU-UP, and gNB-DU.

[0244] In some deployments, multiple RAN nodes collaborate to assist terminals in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be CUs, DUs, CU-CPs, CU-UPs, or radio units (RUs). CUs and DUs can be set up separately or included in the same network element, such as a BBU. RUs can be included in radio equipment or radio units, such as RRUs, AAUs, or RRHs.

[0245] In some deployments, the CU (Core Unit) is a logical node that carries the Radio Resource Control (RRC) layer, Service Data Adaptation Protocol (SDAP) layer, Packet Data Convergence Protocol (PDCP) layer, and other control functions of the access network equipment. The CU connects to network nodes such as the core network through interfaces, which may be E2 interfaces, etc. Optionally, the CU possesses some core network functions. The CU (e.g., the PDCP layer and higher layers) connects to the DU (e.g., the Radio Link Control (RLC) layer and lower layers) through interfaces, which may be F1 interfaces, etc. In some examples, these interfaces (e.g., the F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). The F1 application protocol (F1AP) is the application protocol for the F1 interface, and in some examples, it defines the F1 signaling procedures. The F1 interface supports both the control plane (F1-C) and the user plane (F1-U).

[0246] In some deployments, the CU can be split into CU-CP and CU-UP. CU-CP is a logical node carrying the RRC layer and the control plane part of PDCP (PDCP-C) layer, used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function network elements. CU-UP is a logical node carrying the SDAP layer and the user plane part of PDCP (PDCP-U) layer, used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. The above CU and DU configurations are merely examples; the functions of CU and DU can be configured as needed. For example, CU or DU can be configured to have more protocol layer functions, or CU or DU can be configured to have only partial protocol layer processing functions. For example, some functions of the RLC layer and the functions of the protocol layer above the RLC layer can be placed in the CU, while the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer can be placed in the DU. Another example is that the functions of the CU or DU can be divided according to service type or other system requirements. For instance, based on latency, functions that need to meet low latency requirements can be placed in the DU, while functions that do not need to meet such latency requirements can be placed in the CU.

[0247] In some deployments, the DU (Distributed Unit) is a logical node that carries the RLC (Real-Time Control) layer, the medium access control (MAC) layer, the higher physical layer (Higher PHY) layer, and other functions. In some examples, the DU can control at least one RU (Remote Root). The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.

[0248] In some deployments, the RU is a logical node that carries both lower physical layer (PHY) and radio frequency (RF) processing. In some examples, the RU can be a TRP, RRH, or other similar entity. In some examples, the Low-PHY includes portions of the PHY processing, such as Fast Fourier Transform (FFT), Inverse Fast Fourier Transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.

[0249] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a fronthaul link through a lower-layer split-control, user, and synchronization (LLS-CUS) interface. LLS-CUS may include interfaces providing control and user planes respectively. In some examples, the control plane refers to real-time control between the DU and RU. The DU and RU exchange management information via a fronthaul link interface (such as an LLS-M interface), and the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0250] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0251] In one possible design, the processing unit in the BBU used to implement baseband functions is called the baseband high (BBH) unit, and the processing unit in the RRU / AAU / RRH used to implement baseband functions is called the baseband low (BBL) unit.

[0252] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, a radio access network can also be an open radio access network (O-RAN) architecture. In an O-RAN system, CU can also be called an open CU (open CU, O-CU), DU can also be called an open DU (open DU, O-DU), CU-CP can also be called an open CU-CP (O-CU-CP), CU-UP can also be called an open CU-UP (O-CU-UP), and RU can also be called an open RU (open RU, O-RU). Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0253] In this embodiment, the device for implementing the functions of a network device can be a network device itself, or a device capable of supporting the network device in implementing those functions, such as a chip system, chip, circuit, or communication module (i.e., a communication module that performs communication functions). This device can be installed within the network device. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. Furthermore, the device can be configured with program instructions for performing corresponding communication functions. This embodiment only uses a network device as an example to illustrate the device for implementing the functions of a network device, and does not limit the solution of this embodiment.

[0254] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located. Furthermore, terminal devices and network devices can be hardware devices, software functions running on dedicated hardware, or software functions running on general-purpose hardware, such as virtualization functions instantiated on a platform (e.g., a cloud platform), or entities that include dedicated or general-purpose hardware devices and software functions. This application does not limit the specific form of the terminal devices and network devices.

[0255] First, a brief introduction to the communication system applicable to the embodiments of this application is given below.

[0256] See Figure 1 , Figure 1 This is a schematic diagram of a wireless communication system applicable to embodiments of this application.

[0257] like Figure 1As shown, the wireless communication system includes a wireless access network 100. The wireless access network 100 can be a next-generation (e.g., 6G or higher) wireless access network or a traditional (e.g., 5G, 4G, 3G, or 2G) wireless access network. One or more terminal devices (120a-120j, collectively referred to as 12) can be interconnected or connected to one or more network devices (110a, 110b, collectively referred to as 110) within the wireless access network 100. Network elements in the wireless communication system are connected via interfaces (e.g., next-generation interface (NG), Xn) or over-the-air interfaces.

[0258] Figure 1 This is just an illustration; the wireless communication system may also include other devices, such as core network (CN) equipment, wireless relay equipment, and / or wireless backhaul equipment. Figure 1 It is not shown in the middle.

[0259] Figure 2 A schematic diagram of the communication network element structure between network devices and terminal devices in this application is shown. For example... Figure 2 As shown in (a), the terminal device 10 includes a processor 101, a memory 102, and a transceiver 103, the transceiver 103 including a transmitter 1031, a receiver 1032, and an antenna 1033. Figure 2 As shown in (b), network device 20 includes a processor 201, a memory 202, and a transceiver 203. Transceiver 203 includes a transmitter 2031, a receiver 2032, and an antenna 2033. Receiver 1032 can be used to receive transmission control information via antenna 1033, and transmitter 1031 can be used to send transmission feedback information to network device 20 via antenna 1033. Transmitter 2031 can be used to send transmission control information to terminal device 10 via antenna 2033, and receiver 2032 can be used to receive transmission feedback information sent by terminal device 10 via antenna 2033.

[0260] Figure 2 The communication network element structure shown is applicable to the above. Figure 1 Communication between network devices and terminal devices in a network system.

[0261] See Figure 3 , Figure 3 This is another schematic diagram of a wireless communication system applicable to embodiments of this application.

[0262] like Figure 3As shown, this wireless communication system may include core network equipment, access network equipment (such as RAN), and terminal equipment. Access network equipment communicates with the core network equipment via a backhaul link and with the terminal equipment via an air interface. For example, a BBU in the access network equipment communicates with the core network via a backhaul link, while an RU in the access network equipment communicates with the terminal equipment via an air interface. The BBU can communicate with the RU via a fronthaul link. The BBU and RU may or may not be co-located. In some deployments, the BBU includes at least one CU and at least one DU, and the CU and DU communicate with each other via a midhaul link.

[0263] Figure 3 This is just an illustration; the wireless communication system may also include other devices. Figure 3 It is not shown in the middle.

[0264] To facilitate a better understanding of the technical solution of this application, some related technologies involved in the technical solution of this application are introduced.

[0265] 1. Beam: A communication resource. Different beams can be considered different resources. The same information or different information can be transmitted through different beams.

[0266] In the NR protocol, beams can be represented as spatial domain filters, or spatial filters or spatial parameters. The beam used to transmit signals can be called the transmission beam (Tx beam), and the beam used to receive signals can be called the reception beam (Rx beam).

[0267] The transmit beam can refer to the distribution of signal strength in different directions in space after a signal is transmitted through an antenna, while the receive beam can refer to the distribution of signal strength in different directions in space of a wireless signal received from an antenna.

[0268] Furthermore, the beam can be a wide beam, a narrow beam, or other types of beam. The beamforming technology can be beamforming technology or other technologies. Specifically, beamforming technology can be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology, etc.

[0269] A beam can correspond to one or more antenna ports, used for transmitting data channels, control channels, and detection signals. The one or more antenna ports corresponding to a beam can also be regarded as a set of antenna ports.

[0270] In this application, "beam" can be replaced by spatial filter, spatial filter, spatial parameter, spatial parameter, spatial setting, spatial setting, quasi-co-location (QCL) information, QCL assumption, QCL indication, transmission configuration indicator (TCI) state (TCI-state or TCI state), spatial relationship, etc. The above terms are also equivalent to each other. "Beam" can also be replaced with other beam-related terms, which are not limited in this application.

[0271] 2. Reference signal (RS): Also known as pilot, reference sequence, reference signal, etc. For consistency, it will be described as reference signal below. Reference signals can be used for measurements, such as channel measurement or channel estimation.

[0272] The channel measurements involved in this application also include beam measurements, i.e., obtaining beam quality information by measuring a reference signal. As an example, parameters used to measure beam quality include at least one of the following: reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), signal-to-noise ratio (SNR), and signal-to-interference plus noise ratio (SINR) (or simply signal-to-dryness ratio). In the embodiments of this application, for ease of explanation, unless otherwise specified, the channel measurements involved can be regarded as beam measurements.

[0273] The reference signals mentioned in this application, as examples, may include any of the following: channel state information reference signal (CSI-RS), synchronization signal block (SSB), sounding reference signal (SRS), user equipment specific reference signal (US-RS), demodulation reference signal (DMRS), phase track reference signal (PT-RS), cell reference signal (CRS), etc. It should be understood that the reference signals listed above are merely examples and should not constitute any limitation on this application. This application does not preclude the possibility of defining other reference signals in future protocols to achieve the same or similar functions.

[0274] 3. Reference Signal Resources: These can be used to configure the transmission attributes of reference signals, such as time-frequency resource location, port mapping relationships, power factors, and scrambling codes. Transmitting devices can transmit reference signals based on these resources, and receiving devices can receive reference signals based on these resources.

[0275] To distinguish different reference signal resources, each reference signal resource can correspond to a reference signal resource identifier, such as CSI-RS resource indicator (CRI), SSB resource indicator (SSBRI), or SRS resource index (SRI).

[0276] In the embodiments of this application, the terms "reference signal quality" and "reference signal resource quality" are sometimes used interchangeably, and those skilled in the art should understand their meaning. Reference signal resource quality can be understood as the quality of the reference signal received based on the reference signal resource, or the signal quality received and measured based on the reference signal resource.

[0277] 4. Channel information: This refers to information that reflects the characteristics and quality of the channel.

[0278] As an example, channel information includes at least one of the following: channel state information (CSI), channel time-varying information, or channel frequency offset information. The following explanation primarily uses CSI as an example of channel information; however, it is understood that any information reflecting channel characteristics and channel quality is applicable to the embodiments of this application.

[0279] Taking the method of obtaining downlink CSI through uplink feedback from terminal devices on the network side as an example, specifically, the network side sends downlink reference signals to the terminal devices, and the terminal devices receive the downlink reference signals. Since the terminal devices know the transmission information of the downlink reference signals, they can estimate (or measure) the downlink channel that the downlink reference signals have passed through based on the received downlink reference signals. Then, based on the measurement, the terminal devices can obtain the downlink channel matrix, generate CSI, and feed the CSI back to the network side.

[0280] As an example, CSI includes at least one of the following: channel quality indication (CQI), precoding matrix indicator (PMI), rank indicator (RI), CSI-RS resource indicator (CRI), layer indicator (LI), reference signal receiving power (RSRP), or signal to interference plus noise ratio (SINR). The signal to interference plus noise ratio can also be called the signal-to-interference-plus-noise ratio (SINR).

[0281] 5. Reference Signal Configuration: Reference signal configuration can include two parts: reference signal resource configuration and reference signal reporting configuration. The following section uses the Channel State Information-Reference Signal (CSI-RS) configuration as an example.

[0282] The two most important parts of the CSI-RS configuration are "CSI-ReportConfig" and "CSI-ResourceConfig". It is understood that "CSI-ReportConfig" and "CSI-ResourceConfig" are names used for ease of description only, and other names may be used; this application does not impose any restrictions on this.

[0283] The "CSI-ReportConfig" configuration allows you to set parameters related to CSI reporting, such as "Report Configuration Id," "Report Configuration Type," and "Report Quantity." "ReportConfigId" identifies a "CSI-ReportConfig," meaning one "ReportConfigId" corresponds to one "CSI-ReportConfig." "ReportConfigType" configures the reporting type, which can be periodic, semi-continuous, or aperiodic. "ReportQuantity" configures the reported information, including CRI, PMI, RI, LI, CQI, RSRP, RSRQ, SNR, and SINR. Different configurations allow you to report different information.

[0284] "CSI-ResourceConfig" can be used to configure information related to CSI-RS resources, such as the "CSI Resource Configuration Identifier (CSI-ResourceConfigId)" and the CSI-RS resources used for measurement. "CSI-ResourceConfigId" is the identifier for the "CSI Resource Configuration (CSI-ResourceConfig)," used to identify that "CSI-ResourceConfig," and this variable can be associated with "CSI-ReportConfig."

[0285] For example, through the three-level high-level parameters “CSI-ResourceConfig”-“CSI-RS Resource Set (CSI-RS-ResourceSet)”-“CSI-RS-Resource”, the network device can configure one or more CSI-RS resource sets for each terminal device, and each CSI-RS resource set includes one or more CSI-RS resources.

[0286] Each CSI-RS resource can be identified by a "CSI-RS Resource Identifier (CSI-RS-ResourceId)". The identifiers of CSI-RS resources within a CSI-RS resource set are not necessarily sequential. For example, the identifiers (e.g., CSI-RS-ResourceIds) of resources in a CSI-RS resource set, ordered by beam index, may include {2 (bit value = 010), 4 (bit value = 100), 8 (bit value = 111), 3 (bit value = 011), 5 (bit value = 101)}. CSI-RS-ResourceId = 2 corresponds to resource index 0, CSI-RS-ResourceId = 4 corresponds to resource index 1, CSI-RS-ResourceId = 8 corresponds to resource index 2, CSI-RS-ResourceId = 3 corresponds to resource index 3, and CSI-RS-ResourceId = 5 corresponds to resource index 4. The resource index is used to indicate the transmission order of the CSI-RS resources; it should be understood that the resource index is only an exemplary naming convention.

[0287] When the terminal device reports measurements based on the above configuration, the CRI in the CSI is used to indicate the resources in the current measurement CSI-RS resource set. If the CSI-RS resource set has Ks > 1 CSI-RS resources configured, CRI k (k is greater than or equal to 0) corresponds to the (k+1)th CSI-RS resource in the CSI-RS resource set for channel measurements, where k can be the value of CRI, or k can be the index of the resource indicated by CRI.

[0288] Table 1 is a format example of some fields in the measurement reporting information.

[0289] Table 1

[0290]

[0291] As shown in Table 1, the CRI field carries the CRI, which indicates the CSI-RS resource to be reported, and its length is [length missing]. This indicates the number of CSI-RS resources in resource set s. This indicates rounding up. The SSBRI field carries the SSBRI, which indicates the SSB resource to be reported (such as the resource identifier), and its length is [length missing]. This indicates the number of SSB resources in resource set s. Terminal devices can report one or more of the following: CRI or SSBRI.

[0292] RSRP can be reported differentially. For the maximum value of RSRP, its absolute value can be reported using 7-bit quantization, as shown in the RSRP field in the table. The RSRP indicated by this field corresponds to the reference signal resource corresponding to the reference signal with the highest received power. Other RSRPs can be reported using 4-bit quantization, as shown in the differential RSRP field in the table.

[0293] The above text uses reported quantities such as PMI, CRI, SSBRI, and RSRP as examples to provide a simple explanation of the measurement results, but this should not constitute any limitation on this application. This application does not limit the specific content of the measurement results or their indication methods.

[0294] In this embodiment of the application, CSI can be carried in uplink control information (UCI) and transmitted through the physical uplink control channel (PUCCH) or the physical uplink shared channel (PUSCH).

[0295] See Figure 4 , Figure 4 This is a schematic diagram of a CSI measurement reporting method 400 provided in an embodiment of this application. Figure 4 The method 400 shown may include the following steps.

[0296] 410. The network device sends CSI configuration information to the terminal device. Correspondingly, the terminal device receives the CSI configuration information.

[0297] The CSI reporting configuration information is used to configure the measurement information that the terminal device needs to report, as well as the pilot resources required by the terminal device during measurement.

[0298] One possible implementation is that the network device can send at least one CSI reporting configuration information to the terminal device through one or more of RRC signaling, MAC-CE signaling, and DCI signaling.

[0299] Specifically, the CSI reporting configuration information includes CSI reporting configuration (CSI-ReportConfig) and CSI resource configuration (CSI-ResourceConfig).

[0300] The CSI reporting configuration (CSI-ReportConfig) and CSI resource configuration (CSI-ResourceConfig) are described above and will not be repeated here. As an example, the CSI reporting configuration information includes at least one CSI reporting configuration (CSI-ReportConfig). Each CSI reporting configuration is associated with one or more pilot resource sets (csi-rs-resourceSet). A pilot resource set contains one or more pilot resources, which can be used for channel measurement or interference measurement. Each pilot resource contains one or more pilot ports.

[0301] As an example, pilot resources can be non-zero-power channel state information-reference signal resources (NZP CSIRS resources), zero-power channel state information-reference signal resources (ZP CSIRS resources), channel state information-interference measurement resources (CSI-IM resources), or synchronization signal block resources (SSB resources). This application does not limit these resources.

[0302] One possible implementation is that the CSI reporting configuration (CSI-ReportConfig) is associated with a set of pilot resources (CSI-ResourceConfigId) for channel measurement. This set of pilot resources contains Ks pilot resources (Ks>=1), which are divided into a first type and a second type. The first type of pilot resources contains M... R One type of pilot resource, the second type of pilot resource includes Ks-M R Pilot resources.

[0303] As an example, the first type of pilot resource can be a high-priority pilot resource, and the second type of pilot resource can be a regular pilot resource, which can be understood as a pilot resource with a lower priority than the first type of pilot resource. In other words, the first type of pilot resource has a higher priority than the second type of pilot resource.

[0304] As an example, the first type of pilot resource refers to the pilot resources indicated by the network device that require the reporting of channel state information. The second type of pilot resource refers to the pilot resources from which the terminal device selects some or all of the pilot resources to report channel state information.

[0305] The following describes in detail how to indicate Type I and Type II pilot resources in the CSI Report Configuration (CSI-ReportConfig). This includes at least one of the following methods:

[0306] Method 1: Define a new field in the parameter list of CSI Report Configuration (CSI-ReportConfig) to display the indication M R One Class I pilot resource.

[0307] As an example, the field is "highPriorityCRI", as shown below:

[0308]

[0309] Method 2: Define a new field in the parameter list of the CSI Reporting Configuration (CSI-ReportConfig), and associate this CSI Reporting Configuration (CSI-ReportConfig) with another CSI Reporting Configuration (associatedCSI-ReportConfig), establishing multiple associations between CSI Reporting Configurations (CSI-ReportConfig). By default, the field defined in this CSI Reporting Configuration (CSI-ReportConfig) is used to indicate M. R For a Class 1 pilot resource, all parameter configurations except for pilot resource priority information can reuse the specific configuration of the associated CSI reporting configuration (associatedCSI-ReportConfig).

[0310] As an example, this field is "highPriorityCRI". By default, the associated CSI-ReportConfig contains multiple pilot resources for channel measurements that are all of type 2. See below:

[0311]

[0312] Method 3: Define a new field in the parameter list of the non-zero power CSIRS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration (CSI-ReportConfig) to display the indicator M. R One type of pilot resource.

[0313] As an example, the field is "highPriorityCRI", as shown below:

[0314]

[0315] Method 4: Define a new field in the parameter list of CSI Report Configuration (CSI-ReportConfig) to indicate the number of Category I reference signal resources and which specific reference signal resources are Category I reference signal resources.

[0316] As an example, the field is "M" R “” is used to indicate the number of Type I reference signal resources, as shown below:

[0317]

[0318] Method 5: Define a new field in the parameter list of the non-zero power CSIRS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration (CSI-ReportConfig) to indicate the number of first-class pilot resources and which specific pilot resources are first-class pilot resources.

[0319] As an example, the field is "M" R ", as shown below:

[0320]

[0321] Method 6: Define a new field in the parameter list of non-zero power CSIRS resources included in the non-zero power CSIRS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI Report Configuration (CSI-ReportConfig) to indicate whether the non-zero power CSIRS resource is a Type I pilot resource.

[0322] As an example, the field is "highPriorityCRIFlag", as shown below:

[0323]

[0324]

[0325] Method 7: Indicate the CSI reporting configuration and the first type of pilot resource associated with the CSI reporting configuration through fields in the DCI signaling.

[0326] As an example, this field is the "CSI request" field in DCI signaling. Assume the "CSI request" field occupies N bits, where N1 bits are used to indicate the CSI reporting configuration identifier, and N2 bits are used to indicate the M associated with the CSI reporting configuration. R High-priority pilot resources, and N1+N2=N.

[0327] The following example illustrates the specific definitions of the above fields. Assume that the non-zero power CSIRS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration (CSI-ReportConfig) for channel measurement contains 4 (Ks=4) non-zero power CSIRS resources, which are {NZP-CSI-RS-ResourceId=n1, NZP-CSI-RS-ResourceId=n2, NZP-CSI-RS-ResourceId=n3, NZP-CSI-RS-ResourceId=n4}.

[0328] For example, the specific definition rules for the N2 bits of the above field "highPriorityCRI" or the DCI signaling field "CSI request" are as follows:

[0329] Rule 1: Display the indicator M in bitmap format. R For each type of pilot resource, one bit corresponds to one pilot resource. A bit value of 0 indicates that the pilot resource is a type 2 pilot resource, and a bit value of 1 indicates that the pilot resource is a type 1 pilot resource. Rule 1 can include the following two rules ① and rule ②:

[0330] Rule ①: High-order bits correspond to pilot resources with smaller CRI.

[0331] For example, 0101 indicates that the pilot resources with non-zero power channel state information-reference signal resource identifier (NZP-CSI-RS-ResourceId) = n2 and NZP-CSI-RS-ResourceId = n4 are the first type of pilot resources, and the pilot resources with NZP-CSI-RS-ResourceId = n1 and NZP-CSI-RS-ResourceId = n3 are the second type of pilot resources.

[0332] Rule 2: Higher bits correspond to pilot resources with larger CRI.

[0333] For example, 0101 indicates that the pilot resources NZP-CSI-RS-ResourceId=n1 and NZP-CSI-RS-ResourceId=n3 are high-priority pilot resources, while the pilot resources NZP-CSI-RS-ResourceId=n2 and NZP-CSI-RS-ResourceId=n4 are ordinary pilot resources.

[0334] Rule 2: Multiple CRI values ​​are indicated in the form of multiple fields, and the number of bits corresponding to one CRI value is equal to log2(K). S One CRI value corresponds to one pilot resource; the total number of bits occupied by this field = M R *log2(K S ); the M R The specific value can be pre-agreed upon by the protocol, or indicated to the terminal device by the network device using one of the methods described in Method 3 or Method 4 above.

[0335] Rule 3: Multiple pilot resource combinations are indicated by a single field, with each value corresponding to a specific M. R The combination of pilot resources; the number of bits occupied by this field and M R The values ​​of and Ks are both related.

[0336] For example, the field occupies Assume M R When Ks = 1 and Ks = 4, this field occupies [amount / unit]. By default, pilot resources are sorted in ascending order by Pilot Resource Index (CRI). "00" indicates that the first pilot resource is a Class I pilot resource, and the others are Class II pilot resources; "01" indicates that the second pilot resource is a Class I pilot resource, and the others are Class II pilot resources; and so on. The M... R The specific value can be agreed upon in the protocol, or it can be indicated to the terminal device by the network device using one of the methods three or four mentioned above.

[0337] For example, the new field "M" mentioned above R The specific definition rules for "" are as follows:

[0338] Rule 4: Sort by Pilot Resource Index (CRI) from smallest to largest, with M at the top. R One pilot resource is a Class I pilot resource; the others are Ks-M. R The pilot resources are classified as Class II pilot resources.

[0339] As an example, MR =0 indicates that all pilot resources are type 2 pilot resources.

[0340] As an example, M R =1 indicates that the Ks pilot resources associated with the CSI reporting configuration (CSI-ReportConfig) include 1 first-class pilot resource and Ks-1 second-class pilot resources; among them, the pilot resource with NZP-CSI-RS-ResourceId=n1 in the pilot resource list is the first-class pilot resource, and the other pilot resources are the second-class pilot resources.

[0341] As an example, M R =2 indicates that the Ks pilot resources associated with the CSI reporting configuration (CSI-ReportConfig) include 2 Class I pilot resources and Ks-2 Class II pilot resources; among them, the pilot resources with NZP-CSI-RS-ResourceId=n1 and NZP-CSI-RS-ResourceId=n2 in the pilot resource list are Class I pilot resources, and the other pilot resources are Class II pilot resources; and so on.

[0342] Rule 5: Sort the pilot resource identifiers (NZP-CSI-RS-ResourceId) from smallest to largest, with the first M listed first. R One pilot resource is a Class I pilot resource; the others are Ks-M. R The pilot resources are of type II. Assume that the pilot resource identifier values ​​are n2>n4>n1>n3.

[0343] As an example, M R =0 indicates that all pilot resources are type 2 pilot resources.

[0344] As an example, M R =1 indicates that the Ks pilot resources associated with the CSI reporting configuration (CSI-ReportConfig) include 1 first-class pilot resource and Ks-1 second-class pilot resources; among them, the pilot resource with NZP-CSI-RS-ResourceId=n3 in the pilot resource list is a first-class pilot resource, and the other pilot resources are second-class pilot resources.

[0345] As an example, M R=2 indicates that the Ks pilot resources associated with the CSI reporting configuration (CSI-ReportConfig) include 2 Class I pilot resources and Ks-2 Class II pilot resources; among them, the pilot resources with NZP-CSI-RS-ResourceId=n3 and NZP-CSI-RS-ResourceId=n1 in the pilot resource list are Class I pilot resources, and the other pilot resources are Class II pilot resources; and so on.

[0346] For example, the specific definition rules for the new field "highPriorityCRIFlag" are one or more of the following:

[0347] Rule 6: true indicates that the pilot resource is a type 1 pilot resource.

[0348] Rule 7: false indicates that the pilot resource is a type 2 pilot resource.

[0349] As an example, the reporting configuration type (reportConfigType) of the above CSI reporting configuration (CSI-ReportConfig) can be periodic, semi-static with the reporting volume carried on the PUCCH, semi-static with the reporting volume carried on the PUSCH, non-periodic, or trigger-based.

[0350] It should be understood that the field names described in the above methods are merely examples and do not constitute any limitation on this application.

[0351] It should be understood that the pilot resources described in this application may also be referred to as reference signal resources, reference signal pilot resources, channel state information reference signal resources, etc., and such terms do not limit this application.

[0352] As an example, the CSI reporting configuration can be one or more of the following:

[0353] 'cri-RSRP' or 'ssb-Index-RSRP' or 'cri-SINR' or 'ssb-Index-SINR' or 'cri-RSRP-Index' or 'ssb-Index-RSRP-Index' or 'cri-SINR-Index', or 'ssb-Index-SINR-Index'; 'cri-RI-PMI-CQI' or 'cri-RI-LI-PMI-CQI', or 'cri-RI-CQI' or 'cri-RI-i1-CQI' or 'cri-RI-i1'.

[0354] 420, The terminal equipment performs CSI measurement.

[0355] The terminal device reports configuration information based on CSI and performs reception measurements on the relevant pilot resources. In other words, the terminal device obtains CSI by measuring the reference signal received on the relevant pilot resources.

[0356] The reference signal is a downlink reference signal. For example, the reference signal is CSI-RS, and correspondingly, the reference signal resource is the CSI-RS resource.

[0357] As an example, the CSI reporting configuration of the network device is associated with Ks resources for channel measurement. The terminal device can select M pilot resources from these resources to perform channel state information measurement. The channel state information of each of the M pilot resources includes one or more of the following: RI, wideband CQI of the first transport block, subband CQI of the first transport block, wideband CQI of the second transport block, subband CQI of the second transport block, wideband PMI, subband PMI, and layer indicator i1.

[0358] As an example, the M pilot resources include M R One type I pilot resource and MM R One Class II pilot resource. For ease of description, M R A type I pilot resource can be called a first pilot resource, MM. R A second type of pilot resource may be referred to as a second pilot resource. This terminology does not impose any limitation on this application.

[0359] Specifically, for example, the network device is configured with 8 pilot resources for channel measurement. The `csiReportConfig->resourcesForChannelMeasurement->nzp-CSI-RS-ResourceSetList->nzp-CSI-RS-ResourceSet` contains 8 NZP CSIRS resources: {NZP-CSI-RS-ResourceId=n0, NZP-CSI-RS-ResourceId=n1, NZP-CSI-RS-ResourceId=n2, NZP-CSI-RS-ResourceId=n3, NZP-CSI-RS-ResourceId=n4, NZP-CSI-RS-ResourceId=n5, NZP-CSI-RS-ResourceId=n6, NZP-CSI-RS-ResourceId=n7}. The terminal device can select four pilot resources to report channel status information, which can be the channel status information corresponding to {NZP-CSI-RS-ResourceId=n1, NZP-CSI-RS-ResourceId=n3, NZP-CSI-RS-ResourceId=n4, NZP-CSI-RS-ResourceId=n6}.

[0360] For example, the channel state information corresponding to NZP-CSI-RS-ResourceId=n1 is one or more of the following: rank = RI#n1, bandwidth CQI of the first transport block = wbCQI#n1_0, subband CQI of the first transport block = sbCQI#n1_0, bandwidth CQI of the second transport block = wbCQI#n1_1, subband CQI of the second transport block = sbCQI#n1_1, bandwidth PMI = wbPMI#n1, subband PMI = sbPMI#n 1; The channel state information corresponding to NZP-CSI-RS-ResourceId=n6 is one or more of the following: Rank=RI#n6, the bandwidth CQI of the first transport block=wbCQI#n6_0, the subband CQI of the first transport block=sbCQI#n6_0, the bandwidth CQI of the second transport block=wbCQI#n6_1, the subband CQI of the second transport block=sbCQI#n6_1, the bandwidth PMI=wbPMI#n6, and the subband PMI=sbPMI#n6.

[0361] The method by which the terminal device determines M pilot resources from Ks pilot resources is not limited in the embodiments of this application.

[0362] 430, the terminal device reports CSI.

[0363] Based on the pilot measurement results from S420, the terminal device reports at least one of the following channel state information to the network device: selects M pilot resources from the Ks pilot resources configured for channel measurement and reports M CSIs corresponding to them to the network device.

[0364] Currently, utilizing more spectrum resources is a crucial means to enhance wireless channel capabilities, with the 6GHz band emerging as the next available spectrum resource for wireless communication. However, higher frequency bands result in greater signal energy loss over the same transmission distance. To overcome this issue, larger-scale antenna arrays are typically used on the network device side to weight the transmitted signal, achieving higher array gain and thus increasing signal transmission energy. To reduce implementation costs, large-scale antenna arrays on the network device side usually employ a hybrid beamforming (HBF) architecture. This means that a single digital channel drives multiple antenna elements through multiple phase shifters, and downlink signal transmission on the network device side typically uses both analog and digital domain weighting.

[0365] See Figure 5 , Figure 5 This is a schematic diagram of the HBF architecture on the network device side. For example... Figure 5 As shown, in the HBF architecture, network devices typically use multiple analog beams to achieve coverage of different areas within a cell. Different analog beams cover terminal devices in different areas. Considering the mid-to-low frequency bands, the channel environment is rich in multipath propagation. The same terminal device can be served by different analog beams. That is, in addition to the optimal analog beam seen by the terminal device, other non-optimal analog beams can also provide data transmission to the terminal device at a lower rate. When there are multiple terminal devices to be scheduled within a cell, in order to enable simultaneous transmission under resource multiplexing of multiple terminal devices within the cell, the terminal devices can measure the channel state information under multiple analog beams, thereby providing input for the network device's data scheduling decision.

[0366] Specifically, the configuration for channel state information (CSI) reporting includes one or more reference signal resource sets. Each reference signal resource set contains one or more reference signal resources, and each reference signal resource contains one or more reference signal ports. For the HBF architecture, different analog beams are associated with different reference signal resources. When the transmitted signals of multiple reference signal resources within the same reference signal resource set originate from the same network device (e.g., TRP), the current protocol only supports the terminal device selecting one reference signal resource from which to report CSI information to the network device. The CSI reporting value informs the network device of the reference signal resource associated with the currently reported CSI information. The specific reference signal resource selected for CSI reporting is decided autonomously by the terminal device.

[0367] However, considering the real-time service and terminal equipment scheduling requirements of the existing network, the set of terminal equipment to be scheduled in the network and the amount of service to be scheduled for each terminal equipment are dynamically variable at different times, and the set of analog beams to be measured for each terminal equipment may be different.

[0368] See Figure 6 , Figure 6 This is a schematic diagram of the terminal equipment to be scheduled. For example... Figure 6 As shown in (a), at this time (referred to as time T1), when only UE1 and UE2 have services to be scheduled, UE2 can prioritize measuring beam 1 and beam 2; as Figure 6 As shown in (b), at this time (referred to as time T2), when only UE2, UE3 and UE4 have services to be scheduled, UE2 can prioritize measuring beam 2 and beam 3.

[0369] Based on existing protocols, network devices can configure multiple reference signal resources for channel state information (CSI) measurement for terminal devices. This means different analog beams can be configured as different reference signal resources, allowing the terminal device to perform reception measurements on different reference signal resources and acquire CSI information. However, how to report multiple sets of CSI measurement results for a single CSI message remains a problem that urgently needs to be solved. For example, when uplink resources are limited, how to discard and retain multiple sets of CSI measurement results reported for the same CSI message is not defined in existing protocols.

[0370] In view of this, this application proposes to define the priority of multiple sets of CSI measurement results reported for the same CSI information, so that the terminal device can report the CSI measurement results corresponding to the high-priority beam when uplink resources are limited.

[0371] Before introducing the scheme of this application, the following points should be noted.

[0372] (1) In this application, “instruction” may include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information for the purpose of instructing A, it can be understood that the instruction information carries A, directly instructs A, or indirectly instructs A.

[0373] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementations, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is a relationship between the other information and the information to be instructed. It can also indicate only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent. Furthermore, the information to be instructed can be sent as a whole or divided into multiple sub-information pieces, and the sending period and / or timing of these sub-information pieces can be the same or different.

[0374] (2) In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission via the air interface by other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY via the air interface by other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.

[0375] (3) In the various embodiments of this application, unless otherwise specified or logically conflicting, the terms and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0376] (4) In this application, the terms "first," "second," "#1," "#2," "#n1," "#n2," etc., are merely for descriptive convenience and are used to distinguish objects, and are not intended to limit the scope of the embodiments of this application. They are not used to describe the order or sequence of features. It should be understood that such described objects can be interchanged where appropriate so as to describe solutions other than those in the embodiments of this application.

[0377] (5) In this application, “predefined” may mean a standard protocol predefined, or it may mean that the devices have agreed or negotiated in advance.

[0378] (6) In this application, the words “exemplary,” “for example,” etc., are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as an “example” in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the word “example” is intended to present the concept in a concrete manner. In the embodiments of this application, “of,” “corresponding, relevant,” and “corresponding” may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinction is emphasized.

[0379] The methods provided by the embodiments of this application are described in detail below with reference to the accompanying drawings. The embodiments provided by this application can be applied to the above-described embodiments. Figure 1 The communication system shown is not limited.

[0380] In the following embodiments, terminal devices and network devices are used as examples for illustrative purposes. The term "terminal device" can be replaced by a component of a terminal device (e.g., a chip, chip system, or circuit), and the term "network device" can be replaced by a component of a network device (e.g., a chip, chip system, or circuit).

[0381] See Figure 7 , Figure 7 This is a schematic diagram of a communication method 700 provided in an embodiment of this application. Figure 7 The method 700 shown may include the following steps.

[0382] 710. The terminal device receives Channel Status Information (CSI) reporting configuration information, wherein the CSI reporting configuration includes Ks reference signal resources, where Ks is an integer greater than 1.

[0383] One possible implementation is that the network device sends RRC signaling to the terminal device, and then uses this RRC signaling to send CSI reporting configuration information to the terminal device.

[0384] For details, please refer to steps 410 and 420, which will not be elaborated here.

[0385] 720. The terminal device measures Ks reference signal resources to determine M channel state information. In other words, the terminal device obtains M channel state information by measuring (such as channel measurement) the reference signals received on Ks reference signal resources.

[0386] Where M is an integer greater than 1.

[0387] One possible implementation is that the Ks reference signal resources include a first type of reference signal resource and a second type of reference signal resource, wherein the first type of reference signal resource is M, which is the channel state information that the network device needs to report, as indicated by the network device. R There are one type of reference signal resource, and the second type of reference signal resource is Ks-M. R One reference signal resource.

[0388] One possible implementation is that the M reference signal resources include a first reference signal resource and a second reference signal resource, wherein the first reference signal resource is M channel state information that the network device indicates needs to report. R One type of reference signal resource, and the second reference signal resource is MM. R A second type of reference signal resource.

[0389] For example, the second type of reference signal resource is the reference signal resource for which the terminal device needs to report channel state information for autonomous decision-making.

[0390] The first reference signal resource includes at least one first type of reference signal resource, and the second reference signal resource includes at least one second type of reference signal resource.

[0391] The configuration of the first type of reference signal resources and the second type of reference signal resources can be referred to the description of step 410 in method 400, and will not be repeated here.

[0392] 730, the terminal device sends M channel status information messages. Correspondingly, the network device receives M channel status information messages.

[0393] As an example, M channel state information can be carried in at least one of the following: physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH).

[0394] As an example, M channel state information items are contained in the channel state information field (CSI field), which can be carried in uplink control information (UCI) and transmitted via the physical uplink control channel PUCCH or PUSCH.

[0395] The order of the M channel state information items in the CSI field is determined based on the priority of the M reference signal resources out of the Ks reference signal resources.

[0396] An alternative interpretation is that the CSI field may include the aforementioned M channel state information, and the M channel state information is arranged in the CSI field according to the priority order of the M reference signal resources; in other words, the terminal device can not only indicate the M channel state information corresponding to the M reference signal resources based on the CSI field, but also indicate the priority of the M reference signal resources, or the priority of the M channel state information, based on the CSI field.

[0397] Among them, the M reference signal resources include the first reference signal resource and the second reference signal resource. The first reference signal resource has a higher priority than the second reference signal resource. Therefore, in the CSI field mentioned above, the bits occupied by the channel state information corresponding to the first reference signal resource are more important than the bits occupied by the channel state information corresponding to the second reference signal resource.

[0398] In this embodiment, the priority of the first reference signal resource is higher than that of the second reference signal resource; this can be a relative concept. For example, the higher priority of the first reference signal resource relative to the second reference signal resource may indicate that the network device expects the terminal device to prioritize measuring or reporting the measurement results (such as CSI) of the first reference signal resource. As an example, the first and second reference signal resources can be determined based on actual communication conditions, such as real-time service and / or user scheduling requirements. Figure 6 In the example shown, at time T1 (i.e. Figure 6 (a) For UE2, the first reference signal resource may include the reference signal resources corresponding to beam 1 and beam 2; the second reference signal resource may include the reference signal resources corresponding to beam 3 and beam 4. At time T2 (i.e. Figure 6 (b) For UE2, the first reference signal resource may include the reference signal resources corresponding to beam 2 and beam 3; the second reference signal resource may include the reference signal resources corresponding to beam 1 and beam 4.

[0399] For example, the first reference signal resource is M, which is indicated to the network device as requiring the reporting of channel state information. R The first type of reference signal resource, and the second reference signal resource is the MM (Medium State Information) that the terminal device needs to report for autonomous decision-making. R A second type of reference signal resource.

[0400] If the first reference signal resource has a higher priority than the second reference signal resource, then in the CSI field reported by the terminal device, the bits occupied by the channel state information corresponding to the higher-priority first reference signal resource are more important than the bits occupied by the channel state information corresponding to the lower-priority second reference signal resource. Here, the importance of bits in the CSI subfield is a relative concept. For example, bits that appear earlier in the CSI field are more important, and bits that appear later in the CSI field are less important. For instance, the bits in the CSI field from left to right might be a0, a1, a2, a3, ..., a A-2 a A-1 The channel state information corresponding to the high-priority first reference signal resource occupies the leftmost bits, such as a0, a1, ...; the low-priority second reference signal resource occupies the rightmost bits, such as ..., a A-2 a A-1 The lower the bit number, the more important the information bit. When the number of bits that the uplink channel can carry is less than the number of bits required to transmit the information, the higher-numbered bits on the right are discarded first. For example, bit a... A-1 .

[0401] The CSI field of this application embodiment will be described below.

[0402] In one possible implementation, the fields in the CSI report contain a part (part#n), or in other words, each channel state information contains a part, as shown in Table 2 below.

[0403] In another possible implementation, the fields in the CSI report can be divided into a first part (part 1) and a second part (part 2), or in other words, each channel state information contains two parts. Part 1 is shown in Tables 3 to 16 below; Part 2 is shown in Tables 17 to 31 below.

[0404] The first part (part 1) includes a first parameter and a second parameter. The first parameter is the CSI parameter corresponding to the channel reference signal resource in the first part (part 1), which includes one or more of the following fields: CRI, RI, the wideband CQI of the first transport block (TB), the subband differential CQI of the first TB, the selected L value, and the selected L value. n The indicator K is the sum of the non-zero coefficients of all layers corresponding to all CRIs, representing the combination of values. NZ The indicator K is the sum of the non-zero coefficients of all layers corresponding to a single CRI. NZ .

[0405] In one scenario, part 2 may include a third and a fourth parameter. The third parameter is the CSI parameter corresponding to the channel reference signal resource in part 2, which includes one or more of the following fields: the broadband CQI of the second TB, the selected L... n Indicator of value combination, PMI Broadband Information field.

[0406] In another scenario, part 2 can contain one or more of the following three groups, where:

[0407] Group 0 contains the PMI field X1, which specifically includes one or more of the following fields: i 1,1 i 1,2 i 1,8,l , where l=1,…,v.

[0408] Group 1 contains a portion of the PMI field X2, specifically including one or more of the following fields: i 2,3,l i 1,5 i 1,6,l i 1,9 ,{i 2,4,l} l＝1,…,υ ,{i 2,5,l} l＝1,…,υ ,{i 1,7,l} l＝1,…,υ , where l=1,…,v.

[0409] Group 2 contains a portion of the PMI field X2, specifically including one or more of the following fields {i 2,4,l} l＝1,…,υ ,{i 2,5,l} l＝1,…,υ ,{i 1,7,l} l＝1,…,υ , where l=1,…,v.

[0410] Tables 2-25 below show examples of the format of the CSI field applicable to embodiments of this application, wherein the CSI field indicates the M channel state information corresponding to the M reference signal resources and the order of the M channel state information.

[0411] The CRI field is used to carry the reference signal resource index value, CRI k0-CRI k M-1 This field indicates the M channel state information resource indices to be reported. Each CRI field corresponds to a reference signal resource associated with a channel state information; for example, the M reference signal resource indices are k0, k1, k2, ..., k... M-1CRI k0 indicates the reference signal resource with reference signal resource index = k0, and the channel state information of this reference signal resource has the highest priority and occupies the most important bits of the CSI field.

[0412] Among them, CRI k0-CRI k M-1 The field indicates the M channel status information resources arranged in order of priority.

[0413] For example, in this CSI field, higher-priority channel state information resources occupy more important bits, while lower-priority channel state information resources occupy relatively less important bits. For instance, higher-priority channel state information resources occupy the earlier bits in the CSI field, and lower-priority channel state information resources occupy the later bits. For example, the CRI k0 field indicates the highest priority reference signal resource, and CRI k... M-1 The reference signal resource indicated by the field has the lowest priority, CRI k0-CRI k M-1 The priority of the indicated M reference signal resources decreases progressively.

[0414] Among them, CRI k0-CRI k M-1 The channel state information corresponding to the reference signal resource indicated by each field can be determined based on the network device's configuration information. For example, in step 410 of method 400, the network device configures the information to be reported in the report quantity of the CSI report configuration (CSI-ReportConfig), which may include at least one of the following: CRI, PMI, RI, LI, CQI, RSRP, RSRQ, SNR, SINR, etc. Different information can be reported through different configurations.

[0415] The following is an example of a field in a CSI report containing a part (part#n) (Table 2).

[0416] As an example, in this CSI report #n, the channel state information corresponding to the reference signal resource indicated by CRI k0 is arranged first according to the priority order of CRIs, then the channel state information corresponding to the reference signal resource indicated by CRI k1 is arranged, and so on. As shown in Table 2 below.

[0417] In Table 2 below, taking CRI k0 as an example, the field immediately following CRI k0 to the field immediately preceding CRI k1 is used to carry the channel state information corresponding to the reference signal resource indicated by CRI k1. This channel state information includes: RI, the wideband CQI in the first TB, the subband differential CQI in the first TB in ascending order of subband number, the number indication of the number of non-zero wideband amplitude coefficients M0 in Layer 0, and the number indication of the number of non-zero wideband amplitude coefficients M1 in Layer 1 (if the reporting rank RANK indicated by the above RI is 1, this field is set to all zeros).

[0418] Table 2

[0419]

[0420]

[0421] The following are examples of fields in CSI reports that include Part #1 (Tables 3 to 16).

[0422] Method 1: As an example, in the first part (part 1) of the CSI report #n, according to the priority order of CRIs, first arrange the part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k0, then arrange the part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k1, and so on. As shown in Table 3 below.

[0423] In this context, the fields in part1 of the channel state information corresponding to the reference signal resource indicated by each CRI are arranged in the following order: RI, wideband CQI in the first TB, and subband differential CQI in the first TB in ascending order of subband number. Taking CRI k0 as an example, the field immediately following the CRI k0 field to the field immediately preceding the CRI k1 field is used to carry part1 of the channel state information corresponding to the reference signal resource indicated by CRI k0.

[0424] Table 3

[0425]

[0426]

[0427] Method 2: As an example, in the first part (part 1) of the CSI report #n, the parameters in the M channel state information are arranged in order of priority of CRI, using them as units. First, the indices of the M reference signal resources (CRIk0~CRIk) are arranged. M-1Then arrange M RIs, then arrange M broadband CQIs in the first TB, then arrange M subband differential CQIs in the first TB, then arrange the selected L... n The indicator of the value combination, and then the indicator K of the sum of the non-zero coefficients of all M layers. NZ CRI k m Related in As shown in Table 4 below.

[0428] Table 4

[0429]

[0430] Among them, L m Examples of possible values ​​and combinations are shown in Table 5 below:

[0431] Table 5

[0432]

[0433]

[0434] Among them, M reported CRI-related in The other parts are the same as in Method 2, as shown in Table 6 below.

[0435] Table 6

[0436]

[0437] Method 3: As an example, in the first part (part 1) of the CSI report #n, the parameters in the M channel state information are arranged in order of priority of CRI, and the indices of the M reference signal resources (CRIk0~CRIk) are arranged first. M-1 Then arrange M RIs, then arrange M broadband CQIs in the first TB, then arrange M subband differential CQIs in the first TB, then arrange M selected Ls. n The value is indicated by the indicator K, which is then used to arrange the M non-zero coefficients of all layers. NZ Among them, CRI k m Related in As shown in Table 7 below.

[0438] Table 7

[0439]

[0440]

[0441] Among them, M reported CRI-related in The other parts are the same as in Method 3, as shown in Table 8 below.

[0442] Table 8

[0443]

[0444] Method 4: As an example, in the first part (part 1) of the CSI report #n, the parameters in the M channel state information are arranged in order of priority of CRI, using them as units. First, the indices of the M reference signal resources (CRIk0~CRIk) are arranged. M-1 Then arrange M RIs, then arrange M broadband CQIs in the first TB, then arrange M subband differential CQIs in the first TB, then arrange a selected L. n Value indication (M CRIs corresponding to L) n (If the values ​​are the same), then arrange the M indicators K representing the sum of the non-zero coefficients of all layers. NZ Among them, CRI k m Related in As shown in Table 9 below.

[0445] Table 9

[0446]

[0447]

[0448] Among them, M reported CRI-related in The other parts are the same as in Method 4, as shown in Table 10 below.

[0449] Table 10

[0450]

[0451] Method 5: As an example, in the first part (part 1) of the CSI report #n, according to the priority order of CRIs, first arrange the part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k0, then arrange the part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k1, and so on. As shown in Table 11 below.

[0452] Among them, the selected L can be reported in part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k0. n Indicator of value combinations.

[0453] As shown in Table 11 below, the fields in part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k0 are arranged in the following order: RI, wideband CQI in the first TB, subband differential CQI in the first TB in ascending order of subband number, and selected L. n Indicator of value combination, indicator K of the sum of non-zero coefficients of all layers. NZ , where CRI k m Related in

[0454] Among them, the selected L n The indication of the value combination can be placed after the subband differential CQI in the first TB of CRI k0, or it can be reported in other positions. This application embodiment does not limit this.

[0455] Table 11

[0456]

[0457] Among them, M reported CRI-related in And the indicator K of the sum of the non-zero coefficients of all layers NZ Place in the selected L m The value combination indicator follows, or is placed on the last line; the rest is the same as in Method 5. An example is shown in Table 12 below:

[0458] Table 12

[0459]

[0460] Method Six: As an example, in the first part (part 1) of the CSI report #n, according to the priority order of CRIs, first arrange the part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k0, then arrange the part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k1, and so on. As shown in Table 13 below.

[0461] Among them, the selected L can be reported in part 1 of the channel state information corresponding to each CRI-indicated reference signal resource. n The indicator of the value and the indicator K of the sum of the non-zero coefficients of all layers. NZ .

[0462] As shown in Table 13 below, the fields in part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k0 are arranged in the following order: RI, wideband CQI in the first TB, subband differential CQI in the first TB in ascending order of subband number, indicator of the selected L1 value combination, and indicator K of the sum of non-zero coefficients of all layers. NZ , where CRI k m Related in

[0463] The indication of the selected L1 value can be placed after the subband differential CQI in the first TB of CRI k0, or it can be reported in other positions. This application embodiment does not limit this.

[0464] Table 13

[0465]

[0466]

[0467] Method 7: As an example, in the first part (part 1) of the CSI report #n, according to the priority order of CRIs, first arrange the part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k0, then arrange the part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k1, and so on. As shown in Table 15 below.

[0468] Among them, the selected L can be reported in part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k0. n Value indication (M CRIs corresponding to L) n (Same value).

[0469] As shown in Table 15 below, the fields in part 1 of the channel state information corresponding to the reference signal resource indicated by CRI k0 are arranged in the following order: RI, wideband CQI in the first TB, subband differential CQI in the first TB in ascending order of subband number, and selected L. n The indicator of the value, K, is the indicator of the sum of the non-zero coefficients of all layers. NZ , where CRI k m Related in

[0470] Among them, the selected L n The value indication can be placed after the subband differential CQI in the first TB of CRI k0, or it can be reported in other positions. This application embodiment does not limit this.

[0471] Table 15

[0472]

[0473] Among them, M reported CRI-related in And the indicator K of the sum of the non-zero coefficients of all layers NZ Place it after the selected L value indicator, or in the last line of part 1; the rest is the same as in method seven. An example is shown in Table 16 below:

[0474] Table 16

[0475]

[0476]

[0477] Tables 3 to 16 above use only the "CSI Report #n CSI Part 1" report as an example to illustrate the priority order of the M channel reference signal resources. This can be understood as the M channel reference signal resources in reports such as "CSI Report #n CSI Part 2 Broadband" and "CSI Report #n CSI Part 2 Subband" multiplexing the CRI field order in the "CSI Report #n CSI Part 1" report. Specific examples are shown in Tables 17 and 18 below. The following is an example of a CSI report containing fields from Part 2 (Tables 17 and 18).

[0478] As an example, in this CSI report #n CSI Part 2, following the priority order of CRIs in Table 3, the first part of the channel state information corresponding to the reference signal resource indicated by CRI k0 is arranged, then the second part of the channel state information corresponding to the reference signal resource indicated by CRI k1 is arranged, and so on. See Tables 17 and 18 below.

[0479] Table 17

[0480]

[0481] Table 18

[0482]

[0483]

[0484] The following is another example of a field in a CSI report that includes part #2 (Tables 19 to 31).

[0485] In the following example, part2 contains three sets of content for the PMI field.

[0486] Method 8: As an example, report L n The indication of value combinations, in this CSI report #n CSI Part 2, comprises three sections: Group 0, Group 1, and Group 2. Within each section, the corresponding PMI fields are arranged according to the priority order of CRIs. For example, in Group 0, the PMI field X1 corresponding to CRI k0 is arranged first, then the PMI field X1 corresponding to CRI k1, and so on. Groups 1 and 2 follow the same pattern, as shown in Table 19 below.

[0487] Table 19

[0488]

[0489]

[0490] Method 9: As an example, report L n The value combination is indicated in the second part of the CSI report #n, where the PMI field X1 corresponding to each of the M CRIs is filled into M groups 0 according to the priority order of the CRIs. For example, the PMI field X1 corresponding to CRI k0 is first arranged in the first group 0, then the PMI field X1 corresponding to CRI k1 is arranged in the second group 0, and so on.

[0491] Similarly, a portion of the PMI field X2 corresponding to each of the M CRIs is filled into each of the M groups 1, and a portion of the PMI field X2 corresponding to each of the M CRIs is filled into each of the M groups 2. As shown in Table 20 below.

[0492] Table 20

[0493]

[0494] Among them, L in the table above n Value combinations can be found in Table 5 above.

[0495] For example: when M = 2, {L σ(1) L σ(2)} = {2, 4}.

[0496] The relevant function Pri(l,i,f) reuses the corresponding field priority sorting function in the existing R16 etype II codebook, as detailed in section 5.2.3 of 38.214.

[0497] Method 10: As an example, multiple CRIs selected L nValues ​​are reported independently. In this CSI report #n, CSI Part 2 contains three sections: Group 0, Group 1, and Group 2. Within each section, the corresponding PMI fields are arranged according to the priority order of CRIs. For example, in Group 0, the PMI field X1 corresponding to CRI k0 is arranged first, then the PMI field X1 corresponding to CRI k1 is arranged, and so on. Groups 1 and 2 follow the same procedure, as shown in Table 21 below.

[0498] Table 21

[0499]

[0500] Method 11: As an example, multiple CRIs selected L n The values ​​are reported independently. In the second part of the CSI report #n, the PMI field X1 corresponding to each of the M CRIs is filled into the M groups 0 according to the priority order of the CRIs. For example, the PMI field X1 corresponding to CRI k0 is first arranged in the first group 0, then the PMI field X1 corresponding to CRI k1 is arranged in the second group 0, and so on.

[0501] Similarly, a portion of the PMI field X2 corresponding to each of the M CRIs is filled into each of the M groups 1, and a portion of the PMI field X2 corresponding to each of the M CRIs is filled into each of the M groups 2. As shown in Table 22 below.

[0502] Table 22

[0503]

[0504]

[0505] Method 12: As an example, if multiple CRIs select the same L value, the CSI report #n, CSI Part 2, contains three sections: Group 0, Group 1, and Group 2. Within each section, the corresponding PMI fields are arranged according to the priority order of the CRIs. For example, in Group 0, the PMI field X1 corresponding to CRI k0 is arranged first, then the PMI field X1 corresponding to CRI k1, and so on. Groups 1 and 2 follow the same procedure, as shown in Table 23 below.

[0506] Table 23

[0507]

[0508]

[0509] Method 13: As an example, if multiple CRIs have the same L value, in the second part of the CSI report #n, according to the priority order of the CRIs, fill the PMI field X1 corresponding to the M CRIs into the M groups 0 respectively. For example, first arrange the PMI field X1 corresponding to CRI k0 in the first group 0, then arrange the PMI field X1 corresponding to CRI k1 in the second group 0, and so on.

[0510] Similarly, a portion of the PMI field X2 corresponding to each of the M CRIs is filled into each of the M groups 1, and a portion of the PMI field X2 corresponding to each of the M CRIs is filled into each of the M groups 2. As shown in Table 24 below.

[0511] Table 24

[0512]

[0513]

[0514] Method Fourteen: As an example, report L n The value combination indication, in the second part (part 2) of the CSI report #n, sorts the groups 0, 1, and 2 corresponding to each CRI according to their priority order. For example, first sort the PMI field X1 of group 0 corresponding to CRI k0, then sort the PMI field X2 of group 1 corresponding to CRI k0, then sort the PMI field X2 of group 2 corresponding to CRI k0. Part 2 of the channel state information corresponding to CRI k0 is now sorted. Next, the part 2 of the channel state information corresponding to CRI k1 is sorted in the same way, and so on. As shown in Table 25 below.

[0515] Table 25

[0516]

[0517]

[0518] Method 15: As an example, multiple CRIs selected L nThe values ​​are reported independently. In the second part (part 2) of the CSI report #n, each CRI is sorted according to its priority, with group 0, group 1, and group 2 as units. For example, first, the PMI field X1 of group 0 corresponding to CRI k0 is sorted, then the PMI field X2 of group 1 corresponding to CRI k0 is sorted, then the PMI field X2 of group 2 corresponding to CRI k0 is sorted, completing part 2 of the channel state information corresponding to CRI k0. Next, part 2 of the channel state information corresponding to CRI k1 is sorted in the same way, and so on. As shown in Table 26 below.

[0519] Table 26

[0520]

[0521] Method 16: As an example, if multiple CRIs select the same L value, in the second part (part 2) of the CSI report #n, sort the groups 0, 1, and 2 corresponding to each CRI according to their priority. For example, first sort the PMI field X1 of group 0 corresponding to CRI k0, then sort the PMI field X2 of group 1 corresponding to CRI k0, then sort the PMI field X2 of group 2 corresponding to CRI k0. The part 2 of the channel state information corresponding to CRI k0 is now sorted. Next, sort the part 2 of the channel state information corresponding to CRI k1 in the same way, and so on. As shown in Table 27 below.

[0522] Table 27

[0523]

[0524] Method 17: As an example, in this CSI report #n CSI Part 2, the fields in Part 2 are reported in the order of CRI in Part 1 (k0, k1, k2, ..., k M-1 In part 1, the CRIs are not ordered. See Table 28 below.

[0525] Among them, in methods eight to sixteen above, i is not included. 1,9 The field then provides independent feedback for the frequency domain basis corresponding to each CRI. In method seventeen, i is included. 1,9 field, and i 1,9The field includes two modes: one is a shared frequency domain base, where all CRIs share the same frequency domain base; the other is to select a reference CRI as the reference frequency domain base, adding an offset to other CRIs. The reference CRI can refer to any of its unpriority-free sequences or the first one in a priority sequence; in this embodiment, CRI k0 is selected. For details, please refer to section 5.2.2.2.8 of the 38.214 protocol.

[0526] Table 28

[0527]

[0528]

[0529] Method 18: As an example, in this CSI report #n CSI Part 2, the fields in Part 2 are reported in the order of CRI in Part 1 (k0, k1, k2, ..., k M-1 In part 1, the CRIs are not ordered. See Table 29 below.

[0530] Among them, in methods eight to sixteen above, i is not included. 1,9 The field then provides independent feedback for the frequency domain basis corresponding to each CRI. In method seventeen, i is added only to group 1 of CRI k0. 1,9 Field.

[0531] Table 29

[0532]

[0533]

[0534] Methods eight through sixteen described above may also include i 1,9 For the fields, please refer to Method 17 or Method 18, which will not be elaborated here.

[0535] Method 19: As an example, the priority function can be reconstructed, with priority defined based on the stream index, the spatial domain (SD) index corresponding to a CRI, the frequency domain (FD) basis index, and the order of the CRIs. The specific expression is as follows:

[0536]

[0537] Where, {σ1,…,σ M} represents selecting M resources from Ks resources, therefore, (The order in which CRI reports in part 1), l = 1, ..., v,

[0538] As an example, in this CSI report #n CSI Part 2, the fields in Part 2 do not include i. 1,9 Fields, and group 0 contains CRI k0 to CRI k M-1 The corresponding PMI field is X1, while Group 1 and Group 2 are arranged according to the new priority function. As shown in Table 30 below.

[0539] Table 30

[0540]

[0541] Method 20: As an example, in this CSI report #n CSI Part 2, the field in Part 2 contains i 1，9 Fields, and group 0 contains CRI k0 to k M-1 The corresponding PMI field X1 is used, while Group 1 and Group 2 are arranged according to the priority function of Method Nineteen, as shown in Table 31 below.

[0542] Table 31

[0543]

[0544] The cases of frequency domain basis sharing or independent reporting in Method 19 and Method 20 above can be found in the description in Method 17, and will not be repeated here.

[0545] Part 2 in Tables 17 to 31 above can be combined with Part 1 in Tables 3 to 16 accordingly, and this application embodiment does not limit this.

[0546] In one possible implementation, the order of the CSI report in part 2 of the two-part CSI report is converted to the UCI bit sequence. The mapping, for all CRIs corresponding to group 0, group 1, and group 2, is arranged together, for example... Mapped to group 0, Mapped to group 1 and group 2, group 0 has a higher priority than group 1 and group 2, so when discarding, group 1 and group 2 are discarded first.

[0547] For all CRIs, the cases where group 0, group 1, and group 2 are separate, for example, Mapped to group 0 of CRI k0, Mapped to groups 1 and 2 of CRI k0, Group 0 mapped to CRI k1 Map to CRI k1 in groups 1 and 2, and so on.

[0548] The above-described formats of the channel status information fields reported by the terminal device, in conjunction with Tables 2 to 31, are not limited to these. Any variations of the above tables are applicable to the embodiments of this application.

[0549] In this embodiment of the application, the priority of M channel state information can be determined based on the priority of M reference signal resources, and then arranged in priority order in the CSI field according to the priority of the M channel state information.

[0550] The following section provides a detailed explanation of the priority definitions for the M reference signal resources.

[0551] The following three schemes illustrate how to define the priority of M reference signal resources.

[0552] Option 1: Define the priority of the M reference signal resources based on the content of the M channel quality information corresponding to the M reference signal resources.

[0553] Option 2: Define the priority of the M reference signal resources based on their classification (whether the channel quality information is reported by the network device).

[0554] Option 3: The terminal device autonomously decides the priority of the M reference signal resources.

[0555] First, we will explain Option 1 in detail.

[0556] In one possible implementation, the priority of the M reference signal resources is determined based on at least one of the following parameters: CSI-RS resource indicator (CRI), rank indicator (RI), precoding matrix indicator (PMI), and channel quality indicator (CQI).

[0557] In other words, the priority of the M reference signal resources is determined based on the reported content of the M channel quality information. The parameters in the above implementation are only illustrative examples. The M channel quality information may also include other measurement parameters, which are not limited in this application embodiment.

[0558] The content of the M channel quality information corresponding to the M reference signal resources includes at least one of the following parameters: CSI-RS resource indicator (CRI), rank indicator (RI), precoding matrix indicator (PMI), channel quality indicator (CQI), and precoding matrix indicator (PMI).

[0559] As an example, the priority of the M reference signal resources is determined based on RI and CQI.

[0560] Channel capacity can be determined based on RI and CQI. The priority of M reference signal resources can be determined based on channel capacity. If the channel capacity of the first reference signal resource is greater than the channel capacity of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource. In other words, the larger the channel capacity in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0561] The method for determining channel capacity based on RI and CQI is not limited in the embodiments of this application.

[0562] For example, the CRI k0 field indicates the reference signal resource with reference resource index = k0 (denoted as reference signal resource k0), and the CRI k1 field indicates the reference signal resource with reference resource index = k1 (denoted as reference signal resource k1). In the channel state information of reference signal resource k0, the value of RI is equal to 4, and the value of CQI is equal to 15; in the channel state information of reference signal resource k1, the value of RI is equal to 1, and the value of CQI is equal to 12. The channel capacity corresponding to reference signal resource k0 is greater than that corresponding to reference signal resource k1. Therefore, the priority of reference signal resource k0 is higher than that of reference signal resource k1. In the CSI field, for example, in Table 2 above, the bits occupied by the CRI k0 field are more important than the bits occupied by the CRI k1 field.

[0563] Further optionally, when the channel capacity of the first reference signal resource is equal to the channel capacity of the second reference signal resource, the priority of the M reference signal resources can be determined based on the size of the CRI.

[0564] For example, if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0565] For example, the CRI k0 field indicates the reference signal resource (reference signal resource k0) with reference signal resource index = k0, and the CRI k1 field indicates the reference signal resource (reference signal resource k1) with reference signal resource index = k1. In the channel state information of reference signal resource k0, the value of RI is equal to 1, and the value of CQI is equal to 12; in the channel state information of reference signal resource k1, the value of RI is equal to 1, and the value of CQI is equal to 12. The channel capacity corresponding to reference signal resource k0 is equal to the channel capacity corresponding to reference signal resource k1. Furthermore, in the channel state information of reference signal resource k0, the value of CRI is 1, and in the channel state information of reference signal resource k1, the value of CRI is 3. The value of CRI corresponding to reference signal resource k0 is less than the value of CRI corresponding to reference signal resource k1. Therefore, the priority of reference signal resource k0 is higher than the priority of reference signal resource k1. In the CSI field, for example in Table 2 above, the number of bits occupied by the channel state information of the reference signal resource indicated by CRI k0 is more important than the number of bits occupied by the channel state information of the reference signal resource indicated by CRI k1.

[0566] For example, if the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0567] In this example, the priority of the M reference signal resources can be determined based on at least one of the following formulas.

[0568] Pri(CRI(k))=X1*(RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))+X2*CRI(k), formula (1);

[0569] Pri(CRI(k))=X1*(RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))-X2*CRI(k), formula (2);

[0570] Pri(CRI(k))=X1*(X3-((RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))))+X2*CRI(k), formula (3);

[0571] Pri(CRI(k))=X1*(X3-((RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))))-X2*CRI(k), formula (4);

[0572] Where CRI(k) represents the terminal device from K S The index value of the k-th reference signal resource among the M reference signal resources selected, where k ranges from 1 to M.

[0573] For example, the priority order of the reference signal resource ranked kth is k', and k' = k, or k' > k, or k' <k。

[0574] For example, CRI(2) represents the reference signal resource whose index number is the second largest among the M reference signal resources selected and reported by the terminal device.

[0575] For example, the network device is configured with 8 reference signal resources as {NZP-CSI-RS-ResourceId=n0, NZP-CSI-RS-ResourceId=n1, NZP-CSI-RS-ResourceId=n2, NZP-CSI-RS-ResourceId=n3, NZP-CSI-RS-ResourceId=n4, NZP-CSI-RS-ResourceId=n5, NZP-CSI-RS-ResourceId=n6}. The terminal device selects M reference signal resources as {NZP-CSI-RS-ResourceId=n7}, {NZP-CSI-RS-ResourceId=n1, NZP-CSI-RS-ResourceId=n3, NZP-CSI-RS-ResourceId=n4, NZP-CSI-RS-ResourceId=n6}, and CRI(2) represents the reference signal resource ranked second, i.e., NZP-CSI-RS-ResourceId=n3. The index number of this reference signal resource is "011" (wherein, among the 8 reference signal resources configured by the network device, this reference signal resource is ranked fourth, and the index of the reference signal resource is "011", with a value of 3).

[0576] Pri(CRI(k)) represents the terminal device starting from K. S The priority of the k-th reference signal resource among the M reference signal resources selected.

[0577] Where X1 >> X2, and X1, X3 > 0, X2 ≥ 0.

[0578] Optionally, X1, X2, and X3 are fixed values.

[0579] For example, the specific values ​​of X1 and X2 can be pre-agreed by the protocol or pre-configured by the network. For instance, X1 = 100, X2 = 1.

[0580] For example, the specific value of X3 can be a value pre-agreed by the protocol or pre-configured by the network, or it can be the maximum capacity that a user-level channel can carry. For example, in one scenario, X3 is defined as maxRANK * maxSE, where maxRANK is the maximum transmission flow that the user can support. The value of maxRANK can be equal to the maximum number of receiving antenna ports of the user, or it can be a fixed value configured by the network device; maxSE is the highest spectral efficiency that CQI can indicate. For example, in Table 32 below, the spectral efficiency corresponding to CQI = 15 is 5.5547.

[0581] Wherein, RI(CW0) represents the number of streams in the first transport block associated with the k-th reference signal resource, and RI(CW1) represents the number of streams in the second transport block associated with the k-th reported channel state information.

[0582] For example, when the number of streams indicated by the RI field is less than or equal to 4, the value of RI(CW0) is equal to the number of streams indicated by the RI field; when the number of streams indicated by the RI field is greater than 4, the value of RI(CW0) is equal to 4, and the value of RI(CW1) is equal to the number of streams indicated by the RI field minus 4.

[0583] Where wbCQI(CW0) represents the broadband CQI of the first transport block associated with the k-th reference signal resource, and wbCQICW1 represents the broadband CQI of the second transport block associated with the k-th reference signal resource.

[0584] Where F(wbCQI(CW0)) represents the spectral efficiency corresponding to the broadband CQI of the first transport block associated with the k-th reference signal resource, and F(wbCQI(CW1)) represents the spectral efficiency corresponding to the broadband CQI of the second transport block associated with the k-th reference signal resource.

[0585] The spectral efficiency corresponding to CQI can be determined by the following tables 32-35.

[0586] Table 32

[0587]

[0588] Table 33

[0589]

[0590]

[0591] Table 34

[0592]

[0593] Table 35

[0594]

[0595]

[0596] For example, the spectral efficiency in Table 32 corresponding to CQI=1 is 0.1523.

[0597] In the above formulas (1) and (2), the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0598] For example, in the above formula (1), taking CRI (2) as an example, the value of CRI (2) is 3, X1 = 100, X2 = 1, RI(CW0) = 2, RI(CW1) = 2, F(wbCQI(CW0)) = 0.1523, F(wbCQI(CW1)) = 0.2344, Pri(CRI (2)) = 80.34; taking CRI (4) as an example, the value of CRI (4) is 6, X1 = 100, X2 = 1, RI(CW0) = 4, RI(CW1) = 1, F(wbCQI(CW0)) = 0.1523, F(wbCQI(CW1)) = 0.2344, Pri(CRI(4)) = 113.8. The value of Pri(CRI(4)) is greater than the value of Pri(CRI(2)), therefore the priority of the reference signal resource ranked 4th is higher than the priority of the reference signal resource ranked 2nd.

[0599] In the above formulas (3) and (4), the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0600] For example, in the above formula (1), taking CRI (2) as an example, the value of CRI (2) is 3, X1 = 100, X2 = 1, X3 = 10, RI(CW0) = 2, RI(CW1) = 2, F(wbCQI(CW0)) = 0.1523, F(wbCQI(CW1)) = 0.2344, Pri(CRI (2)) = 928.66; taking CRI (3) as an example, the value of CRI (3) is 4, X1 = 100, X2 = 1, X3 = 10, RI(CW0) = 4, RI(CW1) = 2, F(wbCQI(CW0)) = 0.1523, F(wbCQI(CW1)) = 0.2344, Pri(CRI(4)) = 900.2. The value of Pri(CRI(4)) is less than the value of Pri(CRI(2)), therefore the reference signal resource ranked 3rd has a higher priority than the reference signal resource ranked 2nd.

[0601] It should be understood that the above is only an exemplary description. The priority of the reference signal resource is not related to the index encoding size of the reference signal resource in the M reference signal resources. For example, the priority of the reference signal resource ranked 3rd may be higher than the priority of the reference signal resource ranked 2nd, and the priority of the reference signal resource ranked 5th may be higher than the priority of the reference signal resource ranked 6th. This application embodiment does not limit this.

[0602] As another example, the priority of the M reference signal resources is determined based on RI.

[0603] If the RI value of the first reference signal resource is greater than the RI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the larger the RI value of the reference signal resource, the higher the priority of the reference signal resource.

[0604] For example, the CRI k0 field indicates the reference signal resource with reference resource index = k0 (denoted as reference signal resource k0), and the CRI k1 field indicates the reference signal resource with reference resource index = k1 (denoted as reference signal resource k1). In the channel state information of reference signal resource k0, the value of RI is equal to 4; in the channel state information of reference signal resource k1, the value of RI is equal to 1. The RI value corresponding to reference signal resource k0 is greater than the RI value corresponding to reference signal resource k1. Therefore, the priority of reference signal resource k0 is higher than that of reference signal resource k1. In the CSI field, for example, in Table 2 above, the bits occupied by the CRI k0 field are more important than the bits occupied by the CRI k1 field.

[0605] Further optionally, when the RI value of the first reference signal resource is equal to the RI value of the second reference signal resource, the priority of the M reference signal resources can be determined based on the magnitude of CQI and / or CRI.

[0606] The priority of M reference signal resources is determined based on the magnitude of CQI and / or CRI, including the following methods.

[0607] Method 1: The priority of the M reference signal resources is determined based on CRI.

[0608] For example, if the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource. Alternatively, if the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0609] An example of determining the priority of M reference signal resources based on CRI can be found in the previous description, and will not be repeated here.

[0610] Method 2: The priority of the M reference signal resources is determined based on CQI.

[0611] For example, if the CQI value of the first reference signal resource is greater than the CQI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource. In other words, the larger the CQI value of the reference signal resource, the higher the priority of the reference signal resource.

[0612] For example, the CRI k0 field indicates the reference signal resource with reference resource index = k0 (denoted as reference signal resource k0), and the CRI k1 field indicates the reference signal resource with reference resource index = k1 (denoted as reference signal resource k1). In the channel state information of the reference signal resource k0 indicated by CRI k0, the CQI value is equal to 24; in the channel state information of the reference signal resource k1 indicated by CRI k1, the CQI value is equal to 12. The CQI value corresponding to reference signal resource k0 is greater than the CQI value corresponding to reference signal resource k1. Therefore, the priority of reference signal resource k0 is higher than that of reference signal resource k1. In the CSI field, for example, in Table 2 above, the bits occupied by the CRI k0 field are more important than the bits occupied by the CRI k1 field.

[0613] In this method, the CQI can be the CQI of the first transport block or the CQI of the second transport block.

[0614] For example, when the CQI is the CQI of the first transport block, if the value of the CQI of the first transport block of the first reference signal resource is greater than the value of the CQI of the first transport block of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource. In other words, the larger the value of the CQI of the first transport block corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0615] For example, the CRI k0 field indicates the reference signal resource with reference signal resource index = k0 (denoted as reference signal resource k0), and the CRI k1 field indicates the reference signal resource with reference signal resource index = k1 (denoted as reference signal resource k1). In the channel state information of reference signal resource k0, the CQI value of the first transport block is equal to 24; in the channel state information of reference signal resource k1, the CQI value of the first transport block is equal to 12. The CQI value of the first transport block corresponding to reference signal resource k0 is greater than the CQI value of the first transport block corresponding to reference signal resource k1. Therefore, the priority of reference signal resource k0 is higher than that of reference signal resource k1. In the CSI field, for example, in Table 2 above, the bits occupied by the CRI k0 field are more important than the bits occupied by the CRI k1 field.

[0616] Further optionally, when the CQI value of the first transmission block of the first reference signal resource is equal to the CQI value of the first transmission block of the second reference signal resource, the priority of the M reference signal resources is determined based on the CQI or CRI of the second transmission block.

[0617] Priority is determined based on the CQI of the second transport block: For example, if the CQI value of the second transport block of the first reference signal resource is greater than the CQI value of the second transport block of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource. In other words, the larger the CQI value of the second transport block corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0618] For example, the CRI k0 field indicates the reference signal resource with reference signal resource index = k0 (denoted as reference signal resource k0), and the CRI k1 field indicates the reference signal resource with reference signal resource index = k1 (denoted as reference signal resource k1). In the channel state information of reference signal resource k0, the CQI value of the first transport block is equal to 24, and the CQI value of the second transport block is equal to 15. In the channel state information of reference signal resource k1, the CQI value of the first transport block is equal to 24, and the CQI value of the second transport block is equal to 12. The CQI value of the first transport block corresponding to reference signal resource k0 is equal to the CQI value of the first transport block corresponding to reference signal resource k1, but the CQI value of the second transport block corresponding to reference signal resource k0 is greater than the CQI value of the second transport block corresponding to reference signal resource k1. Therefore, the priority of reference signal resource k0 is higher than the priority of reference signal resource k1. In the CSI field, for example in Table 2 above, the number of bits occupied by the CRI k0 field is more important than the number of bits occupied by the CRI k1 field.

[0619] Further optionally, when the CQI value of the second transmission block of the first reference signal resource is equal to the CQI value of the second transmission block of the second reference signal resource, the priority of the M reference signal resources is determined based on CRI.

[0620] For example, if the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource. Alternatively, if the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0621] An example of determining the priority of M reference signal resources based on CRI can be found in the previous description, and will not be repeated here.

[0622] Priority is determined based on CRI (Channel Quality Information). For example, if the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the first reference signal resource has a higher priority than the second reference signal resource; in other words, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource. Alternatively, if the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the first reference signal resource has a higher priority than the second reference signal resource; in other words, the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0623] An example of determining the priority of M reference signal resources based on CRI can be found in the previous description, and will not be repeated here.

[0624] In this example, the priority of the M reference signal resources can be determined based on at least one of the following formulas.

[0625] Pri(CRI(k))=X1*RI+X2*wbCQI(TB0)+X3*wbCQI(TB1)+X4*CRI(k), formula (5);

[0626] Pri(CRI(k))=X1*RI+X2*wbCQI(TB0)+X3*wbCQI(TB1)-X4*CRI(k), formula (6);

[0627] Pri(CRI(k))=X1*RI+X2*max{wbCQI(TB0),wbCQI(TB1)}+X4*CRI(k), formula (7);

[0628] Pri(CRI(k))=X1*RI+X2*max{wbCQI(TB0),wbCQI(TB1)}-X4*CRI(k), formula (8);

[0629] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-wbCQI(TB0))+X3*(X7-wbCQI(TB1))+X4*CRI(k), formula (9);

[0630] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-wbCQI(TB0))+X3*(X7-wbCQI(TB1))-X4*CRI(k), formula (10);

[0631] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-max{wbCQI(TB0),wbCQI(TB1)})+X4*CRI(k), formula (11);

[0632] Pri(CRI(k))=X1*(X5-RI)+X2*(X6-max{wbCQI(TB0),wbCQI(TB1)})-X4*CRI(k), formula (12);

[0633] Where CRI(k) represents the terminal device from K S The index value of the k-th reference signal resource among the M reference signal resources selected, where k ranges from 1 to M.

[0634] For example, the priority order of the reference signal resource ranked kth is k', and k' = k, or k' > k, or k' <k。

[0635] Pri(CRI(k)) represents the terminal device starting from K. S The priority of the k-th reference signal resource among the M reference signal resources selected.

[0636] Where X1>0, X2, X3, X4≥0.

[0637] Optionally, X1, X2, X3, and X4 are fixed values.

[0638] For example, the specific values ​​of X1, X2, X3, and X4 can be pre-agreed by the protocol or pre-configured by the network. For instance, X1 = 100, X2 = 10, X3 = 1, and X4 = 0.

[0639] For example, the specific values ​​of X5, X6, and X7 can be fixed values ​​pre-agreed by the protocol or pre-configured by the network. For instance, in one scenario, X5 is defined as maxRANK, where maxRANK is the maximum transmission flow that the user can support. The value of maxRANK can be equal to the user's maximum number of receive antenna ports, or it can be a fixed value configured by the network device. In another scenario, X6 and X7 can be the maximum capacity that each user-level stream can carry, and X6 = X7 = maxSE is the highest spectral efficiency indicated by CQI. For example, CQI = 15 corresponds to a spectral efficiency of 5.5547 in Table 32.

[0640] Wherein, RI represents the number of streams associated with the reference signal resource ranked kth.

[0641] Where wbCQI(TB0) represents the broadband CQI value of the first transport block associated with the k-th reference signal resource, and wbCQI(TB1) represents the broadband CQI value of the second transport block associated with the k-th reference signal resource.

[0642] In the above formulas (5), (6), (7) and (8), if X1 >> X2, or X1 >> X3, or X1 >> X4, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2, or X1 << X3, or X1 << X4, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0643] For example, in the above formula (5), taking CRI (2) as an example, the value of CRI (2) is 3, X1 = 100, X2 = 10, X3 = 1, X4 = 0, RI = 3, wbCQI(TB0) = 12, wbCQI(TB1) = 12, Pri(CRI(2)) = 432; taking CRI (4) as an example, the value of CRI (4) is 6, X1 = 100, X2 = 10, X3 = 1, X4 = 0, RI = 4, wbCQI(TB0) = 15, wbCQI(TB1) = 12, Pri(CRI(4)) = 562. The value of Pri(CRI(4)) is greater than the value of Pri(CRI(2)), so the priority of the reference signal resource ranked 4th is higher than the priority of the reference signal resource ranked 2nd.

[0644] In the above formulas (9), (10), (11) and (12), if X1 >> X2, or X1 >> X3, or X1 >> X4, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2, or X1 << X3, or X1 << X4, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0645] For example, in the above formula (9), taking CRI(2) as an example, the value of CRI(2) is 3, X1 = 100, X2 = 10, X3 = 1, X4 = 0, X5 = 8, X6 = 0.5547, X7 = 5.5547, RI = 3, wbCQI(TB0) = 12, wbCQI(TB1) = 12, Pri(CRI(2)) = 378.1094; taking CRI(3) as an example, the value of CRI(3) is 4, X1 = 100, X2 = 10, X3 = 1, X4 = 0, X5 = 8, X6 = 5.5547, X7 = 5.5547, RI = 4, wbCQI(TB0) = 15, wbCQI(TB1) = 12, Pri(CRI(3)) = 248.1094. The value of Pri(CRI(3)) is less than the value of Pri(CRI(2)), therefore the reference signal resource ranked 3rd has a higher priority than the reference signal resource ranked 2nd.

[0646] It should be understood that the above is only an exemplary description. The priority of the reference signal resource is not related to the index encoding size of the reference signal resource in the M reference signal resources. For example, the priority of the reference signal resource ranked 3rd may be higher than the priority of the reference signal resource ranked 2nd, and the priority of the reference signal resource ranked 5th may be higher than the priority of the reference signal resource ranked 6th. This application embodiment does not limit this.

[0647] As another example, the priority of the M reference signal resources is determined based on CQI.

[0648] If the CQI of the first reference signal resource is greater than the CQI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource. In other words, the larger the CQI value of the reference signal resource, the higher the priority of the reference signal resource.

[0649] For example, the CRI k0 field indicates the reference signal resource with reference resource index = k0 (denoted as reference signal resource k0), and the CRI k1 field indicates the reference signal resource with reference resource index = k1 (denoted as reference signal resource k1). In the channel state information of reference signal resource k0, the CQI value is equal to 15; in the channel state information of reference signal resource k1, the CQI value is equal to 12. The CQI value corresponding to reference signal resource k0 is greater than the CQI value corresponding to reference signal resource k1. Therefore, reference signal resource k0 has a higher priority than reference signal resource k1. In the CSI field, for example, in Table 2 above, the bits occupied by the CRI k0 field are more important than the bits occupied by the CRI k1 field.

[0650] Further optionally, when the CQI value of the first reference signal resource is equal to the CQI value of the second reference signal resource, the priority of the M reference signal resources can be determined based on the magnitude of RI and / or CRI.

[0651] The priority of M reference signal resources is determined based on the values ​​of RI and / or CRI, including the following methods.

[0652] Method 1: The priority of the M reference signal resources is determined based on RI.

[0653] For example, if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource. Alternatively, if the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0654] An example of determining the priority of M reference signal resources based on RI can be found in the previous description, and will not be repeated here.

[0655] Method 2: The priority of the M reference signal resources is determined based on CRI.

[0656] For example, if the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource. Alternatively, if the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0657] An example of determining the priority of M reference signal resources based on CRI can be found in the previous description, and will not be repeated here.

[0658] Method 3: The priority of the M reference signal resources is determined based on RI and CRI.

[0659] For example, if the RI of the first reference signal resource is greater than the RI of the second reference signal resource, then the first reference signal resource has a higher priority than the second reference signal resource. When the RI of the first reference signal resource is equal to the RI of the second reference signal resource, if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the first reference signal resource has a higher priority than the second reference signal resource. In other words, the RI values ​​in the channel quality information corresponding to the reference signal resources are compared first. The larger the RI value, the higher the priority of the reference signal resource. Optionally, if the RI values ​​in the channel quality information corresponding to two reference signal resources are equal, the CRI values ​​can be compared. For example, the smaller the CRI value, the higher the priority of the reference signal resource.

[0660] For example, the CRI k0 field indicates the reference signal resource with reference resource index = k0 (denoted as reference signal resource k0), and the CRI k1 field indicates the reference signal resource with reference resource index = k1 (denoted as reference signal resource k1). In the channel state information of reference signal resource k0, the RI value is equal to 4 and the CQI value is equal to 15. In the channel state information of reference signal resource k1, the RI value is equal to 4 and the CQI value is equal to 12. The RI value corresponding to reference signal resource k0 is equal to the RI value corresponding to reference signal resource k1, and the CQI value corresponding to reference signal resource k0 is greater than the CQI value corresponding to reference signal resource k1. Therefore, the priority of reference signal resource k0 is higher than that of reference signal resource k1. In the CSI field, for example, in Table 2 above, the bits occupied by the CRI k0 field are more important than the bits occupied by the CRI k1 field.

[0661] In this example, the priority of the M reference signal resources can be determined based on at least one of the following formulas.

[0662] Pri(CRI(k))=X1*F(wbCQI)+X2*RI+X3*CRI(k), formula (13);

[0663] Pri(CRI(k))=X1*F(wbCQI)+X2*RI-X3*CRI(k), formula (14);

[0664] Pri(CRI(k))=X1*(X6-F(wbCQI))+X2*(X5-RI)+X3*CRI(k), formula (15);

[0665] Pri(CRI(k))=X1*(X6-F(wbCQI))+X2*(X5-RI)-X3*CRI(k), formula (16);

[0666] Where, F(wbCQI) = wbCQI(TB0), or,

[0667] F(wbCQI) = wbCQI(TB1), or,

[0668] F(wbCQI) = max{wbCQI(TB0), wbCQI(TB1)}, or,

[0669] F(wbCQI)=A1*wbCQI(TB0)+A2*wbCQI(TB1).

[0670] Where CRI(k) represents the terminal device from K S The index value of the k-th reference signal resource among the M reference signal resources selected, where k ranges from 1 to M.

[0671] For example, the priority order of the reference signal resource ranked kth is k', and k' = k, or k' > k, or k' <k。

[0672] Pri(CRI(k)) represents the terminal device starting from K. S The priority of the k-th reference signal resource among the M reference signal resources selected.

[0673] Among them, X1, A1, A2, X5, X6 > 0, and X2, X3 ≥ 0.

[0674] Optionally, X1, X2, and X3 are fixed values.

[0675] For example, the specific values ​​of X1, X2, and X3 can be pre-agreed by the protocol or pre-configured by the network. For instance, X1 = 100, X2 = 10, and X3 = 1.

[0676] For example, the specific values ​​of X5 and X6 can be pre-agreed by the protocol or pre-configured by the network. In one scenario, X5 is defined as maxRANK, where maxRANK is the maximum transmission flow that the user can support. The value of maxRANK can be equal to the maximum number of receiving antenna ports of the user, or it can be a fixed value configured by the network device. In another scenario, X6 can be the maximum capacity that each user-level stream can carry. X5 = X6 = maxSE is the highest spectral efficiency that CQI can indicate. For example, the spectral efficiency corresponding to CQI = 15 is 5.5547.

[0677] Wherein, RI represents the number of streams associated with the reference signal resource ranked kth.

[0678] Where F(wbCQI) represents the broadband CQI value of the channel state information, wbCQI(TB0) represents the broadband CQI value of the first transport block associated with the k-th reference signal resource, and wbCQI(TB1) represents the broadband CQI value of the second transport block associated with the k-th reference signal resource.

[0679] The spectral efficiency corresponding to CQI can be determined using Tables 32-35.

[0680] For example, the spectral efficiency in Table 32 corresponding to CQI=1 is 0.1523.

[0681] In the above formulas (13) and (14), if X1 >> X2 and X1 >> X3, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2 and X1 << X3, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0682] For example, in the above formula (13), taking CRI (2) as an example, the value of CRI (2) is 3, X1 = 100, X2 = 10, X3 = 1, RI = 3, F(wbCQI) = wbCQI(TB0) = 12, Pri(CRI (2)) = 1233; taking CRI (3) as an example, the value of CRI (3) is 4, X1 = 100, X2 = 10, X3 = 1, RI = 4, F(wbCQI) = wbCQI(TB0) = 15, Pri(CRI (3)) = 1544. The value of Pri(CRI (3)) is less than the value of Pri(CRI (2)), so the priority of the reference signal resource ranked 3rd is higher than the priority of the reference signal resource ranked 2nd.

[0683] In the above formulas (15) and (16), if X1 >> X2 >> X3, the smaller the value of Pri(CRI(k)), the higher the priority of the reference signal resource; if X1 << X2 << X3, the larger the value of Pri(CRI(k)), the higher the priority of the reference signal resource.

[0684] For example, in the above formula (15), taking CRI(2) as an example, the value of CRI(2) is 3, X1 = 100, X2 = 10, X3 = 1, X5 = 5.5547, X6 = 5.5547, RI = 3, F(wbCQI) = wbCQI(TB0) = 12, Pri(CRI(2)) = -615.983; taking CRI(4) as an example, the value of CRI(4) is 6, X1 = 100, X2 = 10, X3 = 1, RI = 4, X5 = 5.5547, X6 = 5.5547, F(wbCQI) = wbCQI(TB0) = 15, Pri(CRI(4)) = -922.983; The value of Pri(CRI(4)) is less than the value of Pri(CRI(2)), therefore the priority of the reference signal resource ranked 4th is higher than the priority of the reference signal resource ranked 2nd.

[0685] It should be understood that the above is only an exemplary description. The priority of the reference signal resource is not related to the index encoding size of the reference signal resource in the M reference signal resources. For example, the priority of the reference signal resource ranked 3rd may be higher than the priority of the reference signal resource ranked 2nd, and the priority of the reference signal resource ranked 5th may be higher than the priority of the reference signal resource ranked 6th. This application embodiment does not limit this.

[0686] As another example, the priority of the M reference signal resources is determined based on CRI.

[0687] For example, if the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the larger the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource. Alternatively, if the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; in other words, the smaller the CRI value in the channel quality information corresponding to the reference signal resource, the higher the priority of the reference signal resource.

[0688] An example of determining the priority of M reference signal resources based on CRI can be found in the previous description, and will not be repeated here.

[0689] In this example, the priority of the M reference signal resources can be determined based on the following formula.

[0690] Pri(CRI(k))=X1*CRI(k), Formula (17);

[0691] Where CRI(k) represents the terminal device from K SThe index value of the k-th reference signal resource among the M reference signal resources selected, where k ranges from 1 to M.

[0692] For example, the priority order of the reference signal resource ranked kth is k', and k' = k, or k' > k, or k' <k。

[0693] Pri(CRI(k)) represents the terminal device starting from K. S The priority of the k-th reference signal resource among the M reference signal resources selected.

[0694] Where X1 > 0.

[0695] For example, the specific value of X1 can be a fixed value pre-agreed by the protocol or pre-configured by the network.

[0696] In the above formula (17), if Pri(CRI(k)) is larger, it means that the reference signal resource ranked in the kth position has a higher priority; or, if Pri(CRI(k)) is smaller, it means that the reference signal resource ranked in the kth position has a higher priority.

[0697] For example, in the above formula (17), taking CRI (2) as an example, the value of CRI (2) is 3, X1 is 100, and Pri (CRI (2)) is 300; taking CRI (4) as an example, the value of CRI (4) is 6, X1 is 100, and Pri (CRI (4)) is 400. The value of Pri (CRI (4)) is greater than the value of Pri (CRI (2)), so the priority of the reference signal resource ranked 4th is higher than the priority of the reference signal resource ranked 2nd.

[0698] It should be understood that the above is only an exemplary description. The priority of the reference signal resource is not related to the index encoding size of the reference signal resource in the M reference signal resources. For example, the priority of the reference signal resource ranked 3rd may be higher than the priority of the reference signal resource ranked 2nd, and the priority of the reference signal resource ranked 5th may be higher than the priority of the reference signal resource ranked 6th. This application embodiment does not limit this.

[0699] As another example, the priority of the M reference signal resources is determined based on PMI.

[0700] The priority of the M reference signal resources can be determined based on the PMI quantization precision or the number of PMI quantization bits.

[0701] The priority of M reference signal resources is determined based on PMI quantization accuracy: For example, if the PMI quantization accuracy of the first reference signal resource is greater than that of the second reference signal resource, then the priority of the first reference signal resource is higher than that of the second reference signal resource. In other words, the higher the PMI quantization accuracy of a reference signal resource, the higher its priority.

[0702] For example, if the first reference signal resource uses a type I codebook for PMI quantization and the second reference signal resource uses an R15 type II codebook for PMI quantization, the first reference signal resource has a higher priority than the second reference signal resource. Similarly, if the first reference signal resource uses an R15 type II codebook for PMI quantization and the second reference signal resource uses an R16 eType II codebook for PMI quantization, the first reference signal resource has a higher priority than the second reference signal resource. And again, if the first reference signal resource uses an R16 eType II codebook for PMI quantization and the second reference signal resource uses an R16 eType II-PS codebook for PMI quantization, the first reference signal resource has a higher priority than the second reference signal resource.

[0703] The above quantization codebooks are merely illustrative examples. In this application, the quantization of the M reference signal resources can also employ the following codebooks: typeII-r16, typeII-PortSelection-r16, typeII-PortSelection-r17, typeII-PortSelectionRI-Restriction-r17, typeII-CJT-r18, typeII-CJT-RI-Restriction-r18, typeII-CJT-PS-RI-Restriction-r18, typeII-Doppler-r18, typeII-Doppler-RI-Restriction-r18, etc. This application does not limit the scope of these codebooks.

[0704] The priority of M reference signal resources is determined based on the number of PMI quantization bits: For example, if the number of PMI quantization bits of the first reference signal resource is less than the number of PMI quantization bits of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource. In other words, the fewer the number of PMI quantization bits corresponding to a reference signal resource, the higher its priority.

[0705] For example, if the number of PMI quantization bits corresponding to the first reference signal resource is 2 bits and the number of PMI quantization bits corresponding to the second reference signal resource is 4 bits, and the number of PMI quantization bits of the first reference signal resource is less than the number of PMI quantization bits of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

[0706] It should be noted that when the PMIs of multiple reference signal resources are quantized using the same codebook type, the priority of the multiple reference signal resources can be determined based on the priority determination scheme mentioned above.

[0707] Next, we will explain Option 2 in detail.

[0708] In another possible implementation, the categories of the M reference signal resources are determined based on the categories of the M reference signal resources. The M reference signal resources include first reference signal resources and second reference signal resources, where the first reference signal resources are M channels indicating that the network device needs to report channel state information. R There are one type I reference signal resource and MM type II reference signal resource. R A second type of reference signal resource.

[0709] In other words, the priority of the M reference signal resources is determined based on whether the M reference signal resources are instructed by the network device to report channel state information. It can be understood that the M reference signal resources can also be classified based on other principles, which also apply to the above scheme, and this application embodiment does not limit this.

[0710] As an example, the first reference signal resource has a higher priority than the second reference signal resource.

[0711] In this example, the channel state information of the first reference signal resource and the channel state information of the second reference signal resource can be sorted based on the following two criteria.

[0712] Rule 1: In the channel state information field, the number of bits occupied by the channel state information corresponding to the first reference signal resource is more important than the number of bits occupied by the channel state information corresponding to the second reference signal resource.

[0713] The importance of the bits in the CSI subfield can be referred to the previous description. Here, the bits of the CSI field are listed from left to right as a0, a1, a2, a3, ..., a A-2 a A-1 Examples of decreasing importance are described.

[0714] For example, M R M corresponding to each reference signal resource REach channel state information can occupy bits a0 and a1 in the CSI field, MM R MM corresponding to each reference signal resource R Channel state information can occupy a space in the CSI field. A-2 a A-1 The bits.

[0715] For example, the CSI field includes A bits, where M are arranged in a priority order. R M corresponding to each reference signal resource R One channel state information, the remaining bits can be used to arrange MM. R MM corresponding to each reference signal resource R Channel status information.

[0716] It is understandable that when the number of bits that the uplink channel can carry is less than the number of bits required to transmit the information, lower priority bits can be discarded, for example, a. A-1 .

[0717] Rule 2: In the channel state information field, the bits occupied by the channel state information corresponding to the first reference signal resource are arranged alternately with the bits occupied by the channel state information corresponding to the second reference signal resource.

[0718] One optional interpretation of the cross arrangement includes: the priority of a first priority reference signal resource in the first reference signal resource is higher than the priority of a first priority reference signal resource in the second reference signal resource, and the priority of a first priority reference signal resource in the second reference signal resource is higher than the priority of a second priority reference signal resource in the second reference signal resource.

[0719] Among them, the first priority reference signal resource in the first reference signal resource can be understood as M. R The reference signal resource with the highest priority among the first reference signal resources; the reference signal resource with the highest priority among the second reference signal resources can be understood as MM. R The highest priority reference signal resource among all reference signal resources.

[0720] For example, M R The indices of the reference signal resources are M0, M1, ..., M R-1 Where M0, M1, ..., M R-1 The priority of the indicated reference signal resources decreases progressively; that is, reference signal resource M0 is the first priority reference signal resource among the first reference signal resources, and so on, with reference signal resource M1 being the second priority reference signal resource among the first reference signal resources. MM R The index of each reference signal resource is MR M R+1 M M-1 , of which M R M R+1 M M-1 The priority of the indicated reference signal resource decreases progressively, that is, reference signal resource M... R Reference signal resource M is the first priority reference signal resource in the second reference signal resource. R+1 This is a reference signal resource with the second priority within the second reference signal resource. Based on the above rules, M can be... R The reference signal resources are prioritized to obtain M. R Reference signal resources of first priority, second priority, third priority, etc.; similarly, MM can be... R Prioritize the reference signal resources to obtain MM R The reference signal resources include the first priority reference signal resources, the second priority reference signal resources, the third priority reference signal resources, etc.

[0721] The following example illustrates that the bits occupied by the channel state information corresponding to the first reference signal resource are arranged alternately with the bits occupied by the channel state information corresponding to the second reference signal resource.

[0722] Based on the above examples, M R The reference signal resources in the reference signal resources have a priority order (M0, M1, ..., M...). R-1 ), MM R The reference signal resources among the reference signal resources have a priority order (M) R M R+1 M M-1 Therefore, in the channel state information field, M can be prioritized. R The first priority reference signal resource M0 is then arranged into MM. R The first priority reference signal resource M of the reference signal resources R Then arrange M. R The second priority reference signal resource M1 of the reference signal resources is then arranged into MM. R The first priority reference signal resource M of the reference signal resources R+1 And so on, arranged in an alternating pattern.

[0723] For example, the bits of the CSI field, from left to right, include a0, a1, a2, a3, ..., a A-2 a A-1 Its importance is decreasing.R The first priority reference signal resource M0 can occupy bit a0 in the CSI field, MM. R The first priority reference signal resource M of the reference signal resources R It can occupy bit a1; M R The second priority reference signal resource M1 can occupy bit a2 in the CSI field, MM. R The second priority reference signal resource M of the reference signal resources R+1 It can occupy bit a3, and so on.

[0724] M is mentioned in both Criterion 1 and Criterion 2 above. R The priority of reference signal resources in a reference signal resource and MM R The priority of the reference signal resources within the reference signal resources. The determination of this priority is explained below.

[0725] As an implementation method, M R The priority of the reference signal resources within each reference signal resource can be determined according to the method described in Scheme 1 above. Similarly, MM R The reference signal resources in the reference signal resources can also be determined according to the method described in Scheme 1 above.

[0726] As another implementation method, M R The priority of a reference signal resource within a reference signal resource can be determined autonomously by the terminal device.

[0727] Next, we will explain Option 3 in detail.

[0728] In another possible implementation, the terminal device can autonomously decide the priority of the M reference signal resources.

[0729] As an example, a terminal device can evaluate signal quality based on M channel quality information corresponding to M reference signal resources. For example, it can evaluate signal quality based on indicators such as signal-to-noise ratio (SNR), bit error rate (BER), and signal strength, thereby determining the priority of the M channel quality information.

[0730] As another example, a priority decision algorithm can be built into the terminal device, which can assign priority to each reference signal based on the results of signal quality assessment and other possible factors (such as service requirements, user preferences, network conditions, etc.).

[0731] The algorithm may use various strategies, such as weighted scoring, machine learning models, fuzzy logic, etc., to generate the optimal priority allocation, and the embodiments of this application do not limit this.

[0732] For example, the CRI k0 field can indicate the highest priority reference signal resource among the M reference signal resources determined by the terminal device. For instance, it can be any one of the reference signal resources within {NZP-CSI-RS-ResourceId=n1, NZP-CSI-RS-ResourceId=n3, NZP-CSI-RS-ResourceId=n4, NZP-CSI-RS-ResourceId=n6}.

[0733] Optionally, in the embodiments of this application, CRI values ​​can also be defined, and one or more of the following methods can be used:

[0734] Method 1: As an example, the terminal device can send M reference signal resource indices (CRIs) to the network device, where each of the M CRIs corresponds one-to-one with a specific reference signal resource. In other words, different CRI values ​​correspond to different reference signal resources; for example, the number of bits occupied by each CRI is log2(Ks).

[0735] Method 2: As another example, the terminal device can send a first reference signal index and a second reference signal index to the network device. The first reference signal index indicates the index of the first type of reference signal resource among the M reference signal resources (M of which require reporting channel state information). R The index of the first type of reference signal resource is used to indicate the index of the first type of reference signal resource (Ks-M). R (Index to a reference signal resource). In other words, the same CRI value corresponds to different reference signal resources; for example, it represents the M specified by the network device. R The number of bits occupied by any one of the CRIs = log2(M) R Characterizing MM R Any one of the CRIs occupies

[0736] Method 3: As another example, the terminal device does not need to indicate M reference signal resource indices to the network device; that is, the CSI field reported by the terminal device only contains Ks-M. R The index of a reference signal resource, the Ks-M R The index of any CRI of a reference signal resource occupies And the network device specifies M R Each CRI does not need to report the corresponding reference signal resource index, i.e., the M specified by the network device. R No single CRI occupies any bit in the CSI field.

[0737] For example, suppose a network device is configured with CSI reporting configuration number n, which is associated with 8 reference signal resources used for channel measurement. That is, the reference signal resources configured within the pilot resource set used for channel measurement are {NZP-CSI-RS-ResourceId=n0, NZP-CSI-RS-ResourceId=n1, NZP-CSI-RS-ResourceId=n2, NZP-CSI-RS-ResourceId=n3, NZP-CSI-RS-ResourceId=n4, NZP-CSI-RS-ResourceId=n5, NZP-CSI-RS-ResourceId=n6, NZP-CSI-RS-ResourceId=n7}, and M... R =1, the network device indicates that the pilot resource NZP-CSI-RS-ResourceId=n3 is a first-class reference signal resource, i.e., a high-priority reference signal resource, and the other reference signal resources are second-class reference signal resources, i.e., ordinary reference signal resources; M=3, the terminal device selects two reference signal resources {NZP-CSI-RS-ResourceId=n1, NZP-CSI-RS-ResourceId=n5} from the second-class reference signal resources, that is, the CSI field contains the CSI corresponding to {NZP-CSI-RS-ResourceId=n3, NZP-CSI-RS-ResourceId=n1, NZP-CSI-RS-ResourceId=n5}.

[0738] The following example illustrates the definition of the CSI field using Scheme 2's criterion 1 for determining the priority of M reference signal resources, and Scheme 3 for the CRI value. The format of the CSI field is shown in the table below (Table 36-39 shows the complete channel state information reported by the CSI).

[0739] Specifically, in this example, CRI(1) refers to the reference signal resource with the smallest index value among the M reference signal resources, that is, the reference signal resource with NZP-CSI-RS-ResourceId=n1, which is the second priority reference signal resource; CRI(2) refers to the reference signal resource with NZP-CSI-RS-ResourceId=n3, which is the first priority reference signal resource; and CRI(3) refers to the reference signal resource with NZP-CSI-RS-ResourceId=n5, which is the third priority reference signal resource.

[0740] Table 36

[0741]

[0742] Table 37

[0743]

[0744] Table 38

[0745]

[0746]

[0747] Table 39

[0748]

[0749]

[0750] The above-described tables 36 to 39 illustrate a possible format for the channel state information field reported by the terminal device. The embodiments of this application are not limited thereto, and any variations of the above tables are applicable to the embodiments of this application.

[0751] The above definition of the CSI field is merely an example. In this application, the CSI field can be defined based on any priority determination method and CRI value method described above. This application does not limit this.

[0752] Based on the above technical solution, when the terminal device reports multiple channel status information in the same channel status information field, it can sort the corresponding channel status information in the channel status information field according to the priority of the reference signal resources. For example, the channel status information of the reference signal resources with higher priority can be placed first, and the channel status information of the reference signal resources with relatively lower priority can be placed later. When the uplink channel is limited in the number of bits it can carry, the terminal device can discard the channel status information of the reference signal resources with relatively lower priority, thereby reducing the impact on the user's transmission capacity.

[0753] It is understood that in the various embodiments of this application, the interaction between the terminal device and the network device is mainly used as an example for illustrative purposes. This application is not limited to this. The terminal device can be replaced by a receiving device, which can be either a terminal device or a network device. The network device can be replaced by a sending device, which can be either a terminal device or a network device.

[0754] It is also understood that some optional features in the various embodiments of this application may not depend on other features in some scenarios, or may be combined with other features in some scenarios, without limitation.

[0755] It is also understood that the solutions in the various embodiments of this application can be used in reasonable combinations, and the explanations or descriptions of the various terms appearing in the embodiments can be referenced or explained to each other in the various embodiments, without limitation.

[0756] It is also understood that, in the above-described method embodiments, the methods and operations implemented by a device (such as a terminal device or a network device) can also be implemented by components of the device (such as chips or circuits), without limitation.

[0757] The above, combined with Figure 7 The methods provided in the embodiments of this application are described in detail below. Figures 8 to 10 The apparatus provided in the embodiments of this application is described in detail. It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments. Therefore, for content not described in detail, please refer to the method embodiments above. For the sake of brevity, it will not be repeated here.

[0758] See Figure 8 , Figure 8 This is a schematic diagram of a communication device 800 provided in an embodiment of this application. The device 800 includes a transceiver unit 810. The transceiver unit 810 can be used to implement corresponding communication functions. The transceiver unit 810 can also be referred to as a communication interface or communication unit. The device 800 also includes a processing unit 820. The processing unit 820 can be used to perform processing, such as beam measurement. The functions of the processing unit 820 can be implemented by one or more processors. Specifically, the processor may include a modem chip, or a system-on-a-chip (SoC) chip or a system-in-in-package (SIP) chip containing a modem core.

[0759] Optionally, the device 800 may further include a storage unit for storing instructions and / or data, and the processing unit 820 may read the instructions and / or data from the storage unit to enable the device to implement the aforementioned method embodiments.

[0760] Optionally, the transceiver unit 810 may include a receiving unit and a sending unit. The receiving unit can be used to perform receiving-related operations (such as receiving data or messages), and the sending unit can be used to perform sending-related operations (such as sending data or messages).

[0761] The communication device 800 can be a terminal-side device as described in the above embodiments, such as a terminal or a communication module in a terminal, or a circuit or chip in a terminal that is responsible for communication functions.

[0762] In a first possible design, the device 800 can be the terminal device in the aforementioned embodiments, which can implement the steps or processes corresponding to those executed by the terminal device in the above method embodiments. Specifically, the transceiver unit 810 can be used to perform transceiver-related operations of the terminal device in the above method embodiments (such as sending and / or receiving data or messages). For example, the transceiver unit 810 can be used to perform... Figure 7 Steps 710 and 730 in the illustrated embodiment. Processing unit 820 can be used to perform processing-related operations of the terminal device in the above method embodiments, or operations other than sending and receiving (such as operations other than sending and / or receiving data or messages), such as processing unit 820 being used to perform... Figure 7 Step 720 in the illustrated embodiment.

[0763] One possible implementation is as follows: a transceiver unit 810 is used to receive Channel State Information (CSI) reporting configuration information, wherein the CSI reporting configuration includes Ks reference signal resources, where Ks is an integer greater than 1; a processing unit 820 is used to measure the Ks reference signal resources to determine M channel state information, where M is an integer greater than 1; the transceiver unit 810 is also used to send the M channel state information, wherein the order of the M channel state information in the channel state information field is determined based on the priority of the M reference signal resources among the Ks reference signal resources.

[0764] In a second possible design, the device 800 may be a network device as described in the foregoing embodiments, which may implement the steps or processes performed by the network device corresponding to those described in the method embodiments above.

[0765] In one possible implementation, the transceiver unit 810 is used to send first configuration information, which is used to configure Ks reference signal resources and channel state information that the terminal device needs to report; the transceiver unit 810 is also used to receive M channel state information, the order of the M channel state information in the channel state information field is determined based on the priority of the M reference signal resources among the Ks reference signal resources.

[0766] It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0767] In one possible design, when the communication device 800 is a terminal or a communication module within a terminal, the functionality of the processing unit 820 can be implemented by one or more processors. Specifically, the processor may include a modem chip, or a system-on-a-chip (SoC) or SIP chip containing a modem core. The functionality of the communication unit 903 can be implemented by transceiver circuitry.

[0768] In one possible design, when the communication device 800 is a circuit or chip in a terminal responsible for communication functions, such as a modem chip or a system-on-a-chip (SoC) or SIP chip containing a modem core, the function of the processing unit 820 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the communication unit 903 can be implemented by the interface circuitry or data transceiver circuitry on the aforementioned chip.

[0769] It should also be understood that the device 800 here is embodied in the form of a functional unit. The term "unit" here can refer to an application-specific integrated circuit (ASIC), electronic circuitry, a processor (e.g., a shared processor, a proprietary processor, or a group processor, etc.) and memory for executing one or more software or firmware programs, integrated logic circuitry, and / or other suitable components supporting the described functions. In an alternative example, those skilled in the art will understand that the device 800 can specifically be the communication device in the above embodiments, and can be used to execute the various processes and / or steps corresponding to the communication device in the above method embodiments; to avoid repetition, these will not be described again here.

[0770] The apparatus 800 of each of the above-described schemes has the function of implementing the corresponding steps performed by the communication device in the above-described methods. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (e.g., the transmitting unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as processing units, can be replaced by processors, each executing the transceiver operations and related processing operations in each method embodiment.

[0771] In addition, the transceiver unit 810 described above can also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit can be a processing circuit.

[0772] It should be pointed out that, Figure 8 The device mentioned can be the communication equipment in the foregoing embodiments, or it can be a chip or a chip system, such as a system on a chip (SoC). The transceiver unit can be an input / output circuit or a communication interface; the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip. No limitations are imposed here.

[0773] See Figure 9 , Figure 9This is a schematic diagram of another communication device 900 provided in an embodiment of this application. The device 900 includes a processor 910, which is coupled to a memory 920. The memory 920 is used to store computer programs or instructions and / or data. The processor 910 is used to execute the computer programs or instructions stored in the memory 920, or to read the data stored in the memory 920, in order to perform the methods in the above-described method embodiments.

[0774] Optionally, there may be one or more processors 910.

[0775] Optionally, the memory 920 may be one or more.

[0776] Alternatively, the memory 920 can be integrated with the processor 910, or it can be set separately.

[0777] Optionally, such as Figure 9 As shown, the device 900 also includes a transceiver 930 for receiving and / or transmitting signals. For example, a processor 910 is used to control the transceiver 930 to receive and / or transmit signals.

[0778] For example, transceiver 900 includes a transmitter and a receiver, wherein the transmitter is used to transmit signals and the receiver is used to receive signals.

[0779] For example, a transmitted signal can be understood as an output signal, and a received signal can be understood as an input signal.

[0780] As an example, processor 910 may have Figure 8 The processing unit 820 shown has the function of a storage unit, the memory 920 can have the function of a storage unit, and the transceiver 930 can have... Figure 8 The function of the transceiver unit 810 shown is illustrated.

[0781] As one option, the device 900 is used to implement the operations performed by the communication device in the various method embodiments described above.

[0782] For example, processor 910 is used to execute computer programs or instructions stored in memory 920 to implement the relevant operations of terminal devices or network devices in the various method embodiments described above.

[0783] It should be understood that when the communication device 900 is a circuit or chip responsible for communication functions, such as a modem chip or a system-on-a-chip (SoC) chip or SIP chip containing a modem core, the communication device 900 may not include the memory 920, which may be built into or external to the communication device.

[0784] It should be understood that the processor mentioned in the embodiments of this application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0785] It should also be understood that the memory mentioned in the embodiments of this application can be volatile memory and / or non-volatile memory. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0786] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) can be integrated into the processor.

[0787] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0788] See Figure 10 , Figure 10 This is a schematic diagram of a chip system 1000 provided in an embodiment of this application. The chip system 1000 (or may also be referred to as a processing system) includes logic circuitry 1010 and an input / output interface 1020.

[0789] The logic circuit 1010 can be a processing circuit in the chip system 1000. The logic circuit 1010 can be coupled to a memory unit, calling instructions from the memory unit, enabling the chip system 1000 to implement the methods and functions of the embodiments of this application. The input / output interface 1020 can be an input / output circuit in the chip system 1000, outputting processed information from the chip system 1000, or inputting data or signaling information to be processed into the chip system 1000 for processing.

[0790] Optionally, the logic circuit 1010 may be implemented by one or more processors, including the one or more processors or the processing portion of the one or more processors.

[0791] Optionally, the input / output interface 1020 may include transceiver circuitry, a transceiver, input / output circuitry, or a communication interface.

[0792] As one approach, the chip system 1000 is used to implement the operations performed by the communication device (such as a terminal device or a network device) in the various method embodiments described above.

[0793] For example, logic circuit 1010 is used to implement processing-related operations performed by a communication device (such as a terminal device or a network device) in the above method embodiments; input / output interface 1020 is used to implement sending and / or receiving-related operations performed by a communication device (such as a terminal device or a network device) in the above method embodiments.

[0794] This application also provides a computer-readable storage medium storing computer instructions for implementing the methods executed by a communication device (such as a terminal device or a network device) in the above-described method embodiments.

[0795] For example, when the computer program is executed by a computer, it enables the computer to implement the methods described in the embodiments of the above methods, which are executed by a communication device (such as a terminal device or a network device).

[0796] This application also provides a computer program product comprising instructions which, when executed by a computer, implement the methods described above as being performed by a communication device (such as a terminal device or a network device).

[0797] This application also provides a communication system, which includes the terminal devices and / or network devices described in the above embodiments. For example, the system includes... Figure 7 Terminal devices and network devices in the process.

[0798] The explanations and beneficial effects of the relevant contents in any of the devices provided above can be found in the corresponding method embodiments provided above, and will not be repeated here.

[0799] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of apparatus or units may be electrical, mechanical, or other forms.

[0800] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. For example, the computer can be a personal computer, a server, or a network device, etc. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs). For example, the aforementioned available media include, but are not limited to, USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, and other media capable of storing program code.

[0801] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. A communication method, characterized in that, include: Receive Channel State Information (CSI) reporting configuration information, wherein the CSI reporting configuration includes Ks reference signal resources, where Ks is an integer greater than 1; Ks reference signal resources are measured to determine M channel state information, where M is an integer greater than 1; The M channel state information messages are transmitted, and the order of the M channel state information messages in the channel state information field is determined based on the priority of the M reference signal resources among the Ks reference signal resources.

2. The method according to claim 1, characterized in that, The M reference signal resources include a first reference signal resource and a second reference signal resource. The first reference signal resource has a higher priority than the second reference signal resource. Therefore, in the channel state information field, the bits occupied by the channel state information corresponding to the first reference signal resource are more important than the bits occupied by the channel state information corresponding to the second reference signal resource.

3. The method according to claim 1 or 2, characterized in that, The order of the M channel state information items in the channel state information field is determined based on the priority of the M reference signal resources, including: The priority of the M reference signal resources is determined based on at least one of the following parameters: CSI-RS resource indicator (CRI), rank indicator (RI), precoding matrix indicator (PMI), and channel quality indicator (CQI).

4. The method according to claim 3, characterized in that, The priorities of the M reference signal resources are determined based on the RI and the CQI, including: The priority of the M reference signal resources is determined based on the channel capacity. If the channel capacity of the first reference signal resource is greater than the channel capacity of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource. The channel capacity is determined based on the RI and the CQI.

5. The method according to claim 4, characterized in that, When the channel capacity of the first reference signal resource is equal to the channel capacity of the second reference signal resource, the priority of the M reference signal resources is determined based on the size of the CRI, including: If the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or If the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

6. The method according to claim 4 or 5, characterized in that, The priority of the M reference signal resources is determined based on the following formula: Pri(CRI(k))=X1*(X3-((RI(CW0)*F(wbCQI(CW0))+RI(CW1)*F(wbCQI(CW1)))))+X2*CRI(k); Wherein, CRI(k) represents the CRI value of the k-th reference signal resource among the M reference signal resources, Pri(CRI(k)) represents the priority of the k-th reference signal resource among the M reference signal resources, and the value of k ranges from 1 to M. Where X1 >> X2, and X1, X3 > 0, X2 ≥ 0; Wherein, RI(CW0) represents the number of streams in the first transport block associated with the k-th reference signal resource, and RI(CW1) represents the number of streams in the second transport block associated with the k-th reference signal resource. Wherein, F(wbCQI(CW0)) represents the spectral efficiency corresponding to the broadband CQI of the first transport block associated with the k-th reference signal resource, and F(wbCQI(CW1)) represents the spectral efficiency corresponding to the broadband CQI of the second transport block associated with the k-th reference signal resource.

7. The method according to claim 3, characterized in that, The priorities of the M reference signal resources are determined based on the RI, including: If the RI value of the first reference signal resource is greater than the RI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

8. The method according to claim 7, characterized in that, When the RI value of the first reference signal resource is the same as the RI value of the second reference signal resource, the priority of the M reference signal resources is determined based on the CQI and / or the CRI.

9. The method according to claim 8, characterized in that, The priorities of the M reference signal resources are determined based on the CQI, including: If the CQI value of the first reference signal resource is greater than the CQI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

10. The method according to claim 9, characterized in that, The CQI is either the CQI of the first transport block or the CQI of the second transport block.

11. The method according to claim 10, characterized in that, When the CQI is the CQI of the first transport block, if the value of the CQI of the first reference signal resource is greater than the value of the CQI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

12. The method according to claim 11, characterized in that, When the CQI value of the first transmission block of the first reference signal resource is the same as the CQI value of the first transmission block of the second reference signal resource, the priority of the M reference signal resources is determined based on the CQI or CRI of the second transmission block.

13. The method according to claim 12, characterized in that, The priorities of the M reference signal resources are determined based on the CQI of the second transport block, including: If the CQI value of the second transmission block of the first reference signal resource is greater than the CQI value of the second transmission block of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

14. The method according to claim 13, characterized in that, When the CQI value of the second transport block of the first reference signal resource is the same as the CQI value of the second transport block of the second reference signal resource, the priority of the M reference signal resources is determined based on the CQI, including: If the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, If the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

15. The method according to claim 8 or 12, characterized in that, The priorities of the M reference signal resources are determined based on the CRI, including: If the CRI value of the first reference signal resource is greater than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or, If the CRI value of the first reference signal resource is less than the CRI value of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

16. The method according to any one of claims 7-15, characterized in that, The priority of the M reference signal resources is determined based on the following formula: Pri(CRI(k))=X1*RI+X2*max{wbCQI(TB0),wbCQI(TB1)}+X4*CRI(k); Wherein, CRI(k) represents the CRI value of the k-th reference signal resource among the M reference signal resources, Pri(CRI(k)) represents the priority of the k-th reference signal resource among the M reference signal resources, and the value of k ranges from 1 to M. Where X1>0, X2、X4≥0; Wherein, RI represents the number of streams associated with the reference signal resource ranked kth; Wherein, wbCQI(TB0) represents the broadband CQI value of the first transport block associated with the k-th reference signal resource, and wbCQI(TB1) represents the broadband CQI value of the second transport block associated with the k-th reference signal resource.

17. The method according to claim 3, characterized in that, The priorities of the M reference signal resources are determined based on the CQI, including: If the CQI of the first reference signal resource is greater than the CQI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

18. The method according to claim 17, characterized in that, When the CQI of the first reference signal resource is the same as the CQI of the second reference signal resource, the priority of the M reference signal resources is determined based on the RI and / or the CRI.

19. The method according to claim 18, characterized in that, The priorities of the M reference signal resources are determined based on the RI, including: If the RI of the first reference signal resource is greater than the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or If the RI of the first reference signal resource is less than the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

20. The method according to claim 18, characterized in that, The priorities of the M reference signal resources are determined based on the CRI, including: If the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or If the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

21. The method according to claim 18, characterized in that, The priority of the M reference signal resources is determined based on the RI and the CRI, including: If the RI of the first reference signal resource is greater than the RI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource. When the RI of the first reference signal resource is equal to the RI of the second reference signal resource, if the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

22. The method according to any one of claims 17-21, characterized in that, The priority of the M reference signal resources is determined based on the following formula: Pri(CRI(k))=X1*(X6-F(wbCQI))+X2*(X5-RI)+X3*CRI(k); Where, F(wbCQI) = wbCQI(TB0), or, F(wbCQI) = wbCQI(TB1), or, F(wbCQI) = max{wbCQI(TB0), wbCQI(TB1)}, or, F(wbCQI)=A1*wbCQI(TB0)+A2*wbCQI(TB1); Wherein, CRI(k) represents the CRI value of the k-th reference signal resource among the M reference signal resources, Pri(CRI(k)) represents the priority of the k-th reference signal resource among the M reference signal resources, and the value of k ranges from 1 to M. Where X1, A1, A2, X5, X6 > 0, and X2, X3 ≥ 0; Wherein, RI represents the number of streams associated with the reference signal resource ranked kth; Wherein, F(wbCQI) represents the broadband CQI value of the channel state information, wbCQI(TB0) represents the broadband CQI value of the first transport block associated with the k-th reference signal resource, and wbCQI(TB1) represents the broadband CQI value of the second transport block associated with the k-th reference signal resource.

23. The method according to claim 3, characterized in that, The priorities of the M reference signal resources are determined based on the CRI, including: If the CRI of the first reference signal resource is greater than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource; or If the CRI of the first reference signal resource is less than the CRI of the second reference signal resource, then the priority of the first reference signal resource is higher than the priority of the second reference signal resource.

24. The method according to claim 23, characterized in that, The priority of the M reference signal resources is determined based on the following formula: Pri(CRI(k)) = X1*CRI(k); Wherein, CRI(k) represents the CRI value of the k-th reference signal resource among the M reference signal resources, Pri(CRI(k)) represents the priority of the k-th reference signal resource among the M reference signal resources, and the value of k ranges from 1 to M. Where X1 > 0.

25. The method according to any one of claims 1-24, characterized in that, The first reference signal resource is M, which is indicated by the network device as requiring the reporting of channel state information. R A first type of reference signal resource, the second reference signal resource being MM. R A second type of reference signal resource.

26. The method according to claim 25, characterized in that, The method further includes: Receive second configuration information, the second configuration information being used to indicate the M configured by the network device. R One Class I reference signal resource, and / or M R The value of .

27. The method according to claim 1 or 2, characterized in that, The order of the M channel state information items in the channel state information field is determined based on the priority of the M reference signal resources, including: The priority of the M reference signal resources is determined based on the categories of the M reference signal resources, wherein the M reference signal resources include a first reference signal resource and a second reference signal resource, and the first reference signal resource is the M reference signal resource that the network device indicates needs to report channel state information. R There are one type I reference signal resources, and the second type of reference signal resources are MM. R A second type of reference signal resource.

28. The method according to claim 27, characterized in that, The first reference signal resource has a higher priority than the second reference signal resource. In the channel state information field, the number of bits occupied by the channel state information corresponding to the first reference signal resource is more important than the number of bits occupied by the channel state information corresponding to the second reference signal resource. or, In the channel state information field, the bits occupied by the channel state information corresponding to the first reference signal resource are arranged alternately with the bits occupied by the channel state information corresponding to the second reference signal resource.

29. The method according to claim 28, characterized in that, The cross arrangement includes: the priority of the first priority reference signal resource in the first reference signal resource is higher than the priority of the first priority reference signal resource in the second reference signal resource, and the priority of the first priority reference signal resource in the second reference signal resource is higher than the priority of the second priority reference signal resource in the second reference signal resource.

30. The method according to any one of claims 27-29, characterized in that, The channel state information corresponding to the M reference signal resources includes M R Channel state information and MM R Channel state information, the M R Channel state information or the MM R The order of the channel state information in the channel state information field is determined based on any one of claims 3-29.

31. The method according to any one of claims 1-30, characterized in that, Send M reference signal resource indices, wherein each of the M reference signal resource indices corresponds one-to-one with the M reference signal resources, or... Send a first reference signal index and a second reference signal index, wherein the first reference signal index is used to indicate the M reference signal resources that the network device indicates needs to report channel state information. R An index of a reference signal resource, the second reference signal index being used to indicate the MM R An index of a reference signal resource.

32. A communication device, characterized in that, Includes modules or units for performing the method according to any one of claims 1 to 31.

33. A communication device, characterized in that, Includes a processor for executing computer programs or instructions to cause the apparatus to perform the method of any one of claims 1 to 31.

34. The apparatus according to claim 33, characterized in that, The device further includes a memory for storing the computer program or instructions; and / or, The device further includes a communication interface coupled to the processor, the communication interface being used for inputting and / or outputting information.

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