Information transmission method, device and equipment

Abstract

Provided are an information transmission method, device and equipment, the information transmission method comprising: determining channel state information (CSI) reporting configuration information and resource configuration information of K channel state information reference signal (CSI-RS) resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; k is an integer greater than 1; sending the CSI reporting configuration information and the resource configuration information to a terminal; the CSI-RS is sent according to the resource configuration information; and receiving the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information. According to the scheme, a plurality of CSI-RS resources can be associated with one reporting configuration, so that combined measurement and reporting of the plurality of CSI resources are realized.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to an information transmission method, apparatus, and device. Background Art

[0002] The performance of massive multiple-input multiple-output (MIMO) depends on the number of antennas. A larger antenna array and more radio frequency links can bring better performance. Currently, a channel state information-reference signal (CSI-RS) resource supports a maximum of only 32 antenna ports. As the number of channels increases, CSI-RS resources supporting more than 32 ports are required for channel measurement, and CSI with more than 32 ports needs to be reported.

[0003] However, in the existing system, a CSI is generated based on one CSI-RS resource, and the number of antenna ports corresponding to the pre-coding matrix indication (PMI) of the CSI = the number of antenna ports of the CSI-RS resource. Therefore, in the prior art, joint reporting for multiple CSI-RS resources cannot be supported, and thus reporting CSI with more than 32 ports cannot be achieved. Summary of the Invention

[0004] The purpose of this application is to provide an information transmission method, apparatus, and device to solve the problem that joint reporting of multiple CSI-RS resources cannot be supported in the prior art.

[0005] To solve the above technical problem, an embodiment of this application provides an information transmission method applied to a network device, including:

[0006] Determine channel state information (CSI) reporting configuration information and resource configuration information of K channel state information-reference signal (CSI-RS) resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1;

[0007] Send the CSI reporting configuration information and the resource configuration information to the terminal; and send CSI-RS according to the resource configuration information;

[0008] Receive the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information.

[0009] Optionally, the number of antenna ports corresponding to the pre-coding matrix indication (PMI) in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

[0010] Optionally, the resource configuration information includes at least one of the following:

[0011] Configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources;

[0012] Configuration information of K CSI-RS resource sets, where one CSI-RS resource set includes one CSI-RS resource.

[0013] Optionally, when the resource configuration information includes configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information DCI is located;

[0014] wherein, the DCI refers to the DCI that triggers the CSI.

[0015] Optionally, the K CSI-RS resources occupy the same bandwidth;

[0016] And / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

[0017] Optionally, the resource configuration information indicates that the K CSI-RS resources are repeatedly transmitted according to the resource element RE distribution occupied by the K CSI-RS resources in the minimum unit;

[0018] wherein, the minimum unit is configured with at least one of the following:

[0019] Configuration 1: including one time slot in the time domain and one PRB in the frequency domain;

[0020] Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain;

[0021] Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain.

[0022] Optionally, under Configuration 2:

[0023] The number of CSI-RS resources included in each time slot is the same; and / or,

[0024] The orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

[0025] Optionally, under the Configuration 3:

[0026] The number of CSI-RS resources included in each physical resource block (PRB) is the same; and / or,

[0027] The OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

[0028] Optionally, when at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed in a time slot and a PRB by frequency division multiplexing (FDM) and / or time division multiplexing (TDM).

[0029] Optionally, when using the FDM method for multiplexing, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when using the TDM method for multiplexing, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0030] Optionally, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured to be 0, 1, 2, or 3;

[0031] Wherein, the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained according to the bandwidth occupied by the CSI-RS resources;

[0032] The PRB offset value of 0 means that the CSI-RS resources occupy the PRBs where the common resource block (CRB) index modulo 4 is equal to 0;

[0033] The PRB offset value of 1 means that the CSI-RS resources occupy the PRBs where the CRB index modulo 4 is equal to 1;

[0034] The PRB offset value of 2 indicates that the CSI-RS resource occupies the PRB where the CRB index modulo 4 is equal to 2;

[0035] The PRB offset value of 3 indicates that the CSI-RS resource occupies the PRB where the CRB index modulo 4 is equal to 3.

[0036] Optionally, under the Configuration 1 or Configuration 2: the density ρ value of the CSI-RS resource is 1, 0.5 or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same;

[0037] And / or, under the Configuration 3: the density ρ value of the CSI-RS resource is 0.5 or 0.25; and the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different.

[0038] Optionally, the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following:

[0039] The density ρ values of the K CSI-RS resources are all 0.5, at least one of the CSI-RS resources is configured in even-numbered PRBs, and at least one other CSI-RS resource is configured in odd-numbered PRBs; all the CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ value of the combined CSI-RS resource is 0.5;

[0040] The density ρ values of the K CSI-RS resources are all 0.25, and the PRB offset values of at least 4 of the CSI-RS resources are different from each other; all the CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ value of the combined CSI-RS resource is 0.25.

[0041] Optionally, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following:

[0042] For the case where M×K is 64, the (M, K) = (32, 2), (16, 4) or (8, 8);

[0043] For the case where M×K is 128, the (M, K) = (32, 4), (16, 8) or (8, 16);

[0044] For the case where M×K is 48, (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6);

[0045] For the case where M×K is 96, (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8).

[0046] Optionally, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number of antenna ports M k includes at least one of the following:

[0047] For being 64, K = 3, and the combination of K Ms k is (32, 16, 16); or, K = 4, and the combination of K Ms k is (32, 16, 8, 8);

[0048] For being 128, K = 5, and the combination of K Ms k is (32, 32, 32, 16, 16);

[0049] For being 48, K = 2, and the combination of K Ms k is (32, 16); or, K = 3, and the combination of K Ms k is (24, 12, 12);

[0050] For being 96, K = 4, and the combination of K Ms k is (32, 32, 16, 16) or (32, 24, 24, 16);

[0051] where M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1,..., K - 1}.

[0052] An embodiment of the present application further provides an information transmission method, which is applied to a terminal and includes:

[0053] Receiving CSI reporting configuration information sent by a network device, and resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1;

[0054] Receiving the CSI-RS sent by the network device according to the resource configuration information;

[0055] Generate a CSI according to the received CSI-RS and the CSI reporting configuration information;

[0056] Report the CSI to the network device.

[0057] Optionally, the number of antenna ports corresponding to the PMI in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

[0058] Optionally, the resource configuration information includes at least one of the following:

[0059] Configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources;

[0060] Configuration information of K CSI-RS resource sets, where one CSI-RS resource set includes one CSI-RS resource.

[0061] Optionally, when the resource configuration information includes the configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information DCI is located;

[0062] wherein, the DCI refers to the DCI that triggers the CSI.

[0063] Optionally, the K CSI-RS resources occupy the same bandwidth;

[0064] and / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

[0065] Optionally, the resource configuration information indicates that the K CSI-RS resources are repeatedly transmitted according to the resource element RE distribution occupied by the K CSI-RS resources in the minimum unit;

[0066] wherein, the minimum unit is configured with at least one of the following:

[0067] Configuration 1: including one time slot in the time domain and one PRB in the frequency domain;

[0068] Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain;

[0069] Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain.

[0070] Optionally, under the said Configuration 2:

[0071] The number of CSI-RS resources included in each time slot is the same; and / or,

[0072] The orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

[0073] Optionally, under the said Configuration 3:

[0074] The number of CSI-RS resources included in each physical resource block (PRB) is the same; and / or,

[0075] The OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS resources in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

[0076] Optionally, when at least two of the said CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed in one time slot and one PRB by frequency division multiplexing (FDM) and / or time division multiplexing (TDM).

[0077] Optionally, when using the FDM method for multiplexing, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when using the TDM method for multiplexing, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0078] Optionally, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured as 0, 1, 2, or 3;

[0079] Wherein, the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained according to the bandwidth occupied by the CSI-RS resources;

[0080] The fact that the PRB offset value is 0 indicates that the CSI-RS resource occupies the PRB where the common resource block CRB index modulo 4 is equal to 0;

[0081] The fact that the PRB offset value is 1 indicates that the CSI-RS resource occupies the PRB where the CRB index modulo 4 is equal to 1;

[0082] The fact that the PRB offset value is 2 indicates that the CSI-RS resource occupies the PRB where the CRB index modulo 4 is equal to 2;

[0083] The fact that the PRB offset value is 3 indicates that the CSI-RS resource occupies the PRB where the CRB index modulo 4 is equal to 3.

[0084] Optionally, under the Configuration 1 or Configuration 2: the density ρ value of the CSI-RS resource is 1, 0.5 or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same;

[0085] And / or, under the Configuration 3: the density ρ value of the CSI-RS resource is 0.5 or 0.25; and the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different.

[0086] Optionally, the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following:

[0087] The density ρ values of the K CSI-RS resources are all 0.5, at least one of the CSI-RS resources is configured in an even-numbered PRB, and at least one other CSI-RS resource is configured in an odd-numbered PRB; all CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ value of the combined CSI-RS resource is 0.5;

[0088] The density ρ values of the K CSI-RS resources are all 0.25, and the PRB offset values of at least 4 of the CSI-RS resources are different from each other; all CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ value of the combined CSI-RS resource is 0.25.

[0089] Optionally, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following:

[0090] For the case where M×K is 64, (M, K) = (32, 2), (16, 4), or (8, 8);

[0091] For the case where M×K is 128, (M, K) = (32, 4), (16, 8), or (8, 16);

[0092] For the case where M×K is 48, (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6);

[0093] For the case where M×K is 96, (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8).

[0094] Optionally, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number M of antenna ports k includes at least one of the following:

[0095] For being 64, K = 3, and the combination of K Ms k is (32, 16, 16); or, K = 4, and the combination of K Ms k is (32, 16, 8, 8);

[0096] For being 128, K = 5, and the combination of K Ms k is (32, 32, 32, 16, 16);

[0097] For being 48, K = 2, and the combination of K Ms k is (32, 16); or, K = 3, and the combination of K Ms k is (24, 12, 12);

[0098] For being 96, K = 4, and the combination of K Ms k is (32, 32, 16, 16) or (32, 24, 24, 16);

[0099] wherein, M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1,..., K - 1}.

[0100] The embodiment of the present application further provides an information transmission device, the information transmission device is a network device, and includes a memory, a transceiver, and a processor:

[0101] A memory for storing computer programs; a transceiver for transmitting and receiving data under the control of the processor; a processor for reading the computer programs in the memory and performing the following operations:

[0102] Determine channel state information (CSI) reporting configuration information and resource configuration information of K channel state information reference signals (CSI-RS) resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1;

[0103] Through the transceiver, send the CSI reporting configuration information and the resource configuration information to the terminal; and send CSI-RS according to the resource configuration information;

[0104] Through the transceiver, receive the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information.

[0105] Optionally, the number of antenna ports corresponding to the precoding matrix indicator (PMI) in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

[0106] Optionally, the resource configuration information includes at least one of the following:

[0107] Configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources;

[0108] Configuration information of K CSI-RS resource sets, and one CSI-RS resource set includes one CSI-RS resource.

[0109] Optionally, when the resource configuration information includes configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information (DCI) is located;

[0110] Wherein, the DCI refers to the DCI that triggers the CSI.

[0111] Optionally, the K CSI-RS resources occupy the same bandwidth;

[0112] And / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

[0113] Optionally, the resource configuration information indicates that the K CSI-RS resources are repetitively transmitted according to the resource element (RE) distribution occupied by the K CSI-RS resources in the smallest unit;

[0114] Wherein, the smallest unit is configured with at least one of the following:

[0115] Configuration 1: including one time slot in the time domain and one physical resource block (PRB) in the frequency domain;

[0116] Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain;

[0117] Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain.

[0118] Optionally, under Configuration 2:

[0119] The number of CSI-RS resources included in each time slot is the same; and / or,

[0120] The orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

[0121] Optionally, under Configuration 3:

[0122] The number of CSI-RS resources included in each PRB is the same; and / or,

[0123] The OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS resources in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

[0124] Optionally, when at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are resource multiplexed by frequency division multiplexing (FDM) and / or time division multiplexing (TDM) in one time slot and one PRB.

[0125] Optionally, when using FDM multiplexing, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or when using TDM multiplexing, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0126] Optionally, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured to 0, 1, 2, or 3;

[0127] Wherein, the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained according to the bandwidth occupied by the CSI-RS resources;

[0128] The PRB offset value of 0 means that the CSI-RS resources occupy the PRBs where the common resource block CRB index mod 4 is equal to 0;

[0129] The PRB offset value of 1 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 1;

[0130] The PRB offset value of 2 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 2;

[0131] The PRB offset value of 3 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 3.

[0132] Optionally, under Configuration 1 or Configuration 2: the value of the density ρ of the CSI-RS resources is 1, 0.5, or 0.25, and the density of the K CSI-RS resources is the same and the PRB offset values are the same;

[0133] and / or under Configuration 3: the value of the density ρ of the CSI-RS resources is 0.5 or 0.25; and the density ρ of the K CSI-RS resources is the same, and at least of the PRB offset values of the K CSI-RS resources are different.

[0134] Optionally, the density ρ of the K CSI-RS resources is the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following:

[0135] The density ρ of each of the K CSI-RS resources is 0.5. At least one of the CSI-RS resources is configured in an even PRB, and at least one other CSI-RS resource is configured in an odd PRB. All CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ of the combined CSI-RS resource is 0.5;

[0136] The density ρ of each of the K CSI-RS resources is 0.25. The PRB offset values of at least 4 of the CSI-RS resources are different from each other. All CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ of the combined CSI-RS resource is 0.25.

[0137] Optionally, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following:

[0138] For the case where M×K is 64, (M, K) = (32, 2), (16, 4), or (8, 8);

[0139] For the case where M×K is 128, (M, K) = (32, 4), (16, 8), or (8, 16);

[0140] For the case where M×K is 48, (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6);

[0141] For the case where M×K is 96, (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8).

[0142] Optionally, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number of antenna ports M k includes at least one of the following:

[0143] For being 64, K = 3, and the combination of K Ms k is (32, 16, 16); or, K = 4, and the combination of K Ms k is (32, 16, 8, 8);

[0144] For being 128, K = 5, and the combination of K Ms k is (32, 32, 32, 16, 16);

[0145] For the case where it is 48, K = 2, and the combination of K Ms is (32, 16); or, K = 3, and the combination of K Ms is (24, 12, 12); k For k the case where it is 96, K = 4, and the combination of K Ms is (32, 32, 16, 16) or (32, 24, 24, 16);

[0146] For the case where it is 96, K = 4, and the combination of K Ms is (32, 32, 16, 16) or (32, 24, 24, 16); k where M

[0147] represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1, …, K - 1}. k

[0148] The embodiment of the present application further provides an information transmission device, where the information transmission device is a terminal, including a memory, a transceiver, and a processor:

[0149] The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0150] Receive, through the transceiver, CSI reporting configuration information sent by a network device, and resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1;

[0151] Receive, through the transceiver, the CSI-RS sent by the network device according to the resource configuration information;

[0152] Generate a CSI according to the received CSI-RS and the CSI reporting configuration information;

[0153] Report the CSI to the network device through the transceiver.

[0154] Optionally, the number of antenna ports corresponding to the PMI in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

[0155] Optionally, the resource configuration information includes at least one of the following:

[0156] Configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources;

[0157] ​Configuration information of K CSI-RS resource sets, where one of the CSI-RS resource sets contains one of the CSI-RS resources.

[0158] Optionally, when the resource configuration information includes configuration information of one CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information DCI is located;

[0159] wherein, the DCI refers to the DCI that triggers the CSI.

[0160] Optionally, the K CSI-RS resources occupy the same bandwidth;

[0161] and / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

[0162] Optionally, the resource configuration information indicates that the K CSI-RS resources are repeatedly transmitted according to the resource element RE distribution occupied by the K CSI-RS resources in the minimum unit;

[0163] wherein, the minimum unit is configured with at least one of the following:

[0164] Configuration 1: includes one time slot in the time domain and one PRB in the frequency domain;

[0165] Configuration 2: includes at least two time slots in the time domain and one PRB in the frequency domain;

[0166] Configuration 3: includes one time slot in the time domain and at least two PRBs in the frequency domain.

[0167] Optionally, under Configuration 2:

[0168] the number of CSI-RS resources included in each time slot is the same; and / or,

[0169] the orthogonal frequency division multiplexing OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

[0170] Optionally, under Configuration 3:

[0171] The number of CSI-RS resources included in each PRB is the same; and / or,

[0172] The OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

[0173] Optionally, when at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed by frequency division multiplexing (FDM) and / or time division multiplexing (TDM) within one time slot and one PRB.

[0174] Optionally, when multiplexing using the FDM method, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when multiplexing using the TDM method, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0175] Optionally, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured to be 0, 1, 2, or 3;

[0176] Wherein, the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained according to the bandwidth occupied by the CSI-RS resources;

[0177] The PRB offset value of 0 means that the CSI-RS resources occupy the PRBs where the common resource block (CRB) index mod 4 is equal to 0;

[0178] The PRB offset value of 1 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 1;

[0179] The PRB offset value of 2 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 2;

[0180] The PRB offset value of 3 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 3.

[0181] Optionally, under the said Configuration 1 or Configuration 2: the value of the density ρ of the CSI-RS resources is 1, 0.5 or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same;

[0182] And / or, under the said Configuration 3: the value of the density ρ of the CSI-RS resources is 0.5 or 0.25; and the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources have

[0183] Optionally, the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following:

[0184] The values of the density ρ of the K CSI-RS resources are all 0.5, at least one of the CSI-RS resources is configured in even-numbered PRBs, and at least one other CSI-RS resource is configured in odd-numbered PRBs; all the CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the value of the density ρ of the combined CSI-RS resource is 0.5;

[0185] The values of the density ρ of the K CSI-RS resources are all 0.25, and the PRB offset values of at least 4 of the CSI-RS resources are different from each other; all the CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the value of the density ρ of the combined CSI-RS resource is 0.25.

[0186] Optionally, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following:

[0187] For the case where M×K is 64, the (M, K) = (32, 2), (16, 4) or (8, 8);

[0188] For the case where M×K is 128, the (M, K) = (32, 4), (16, 8) or (8, 16);

[0189] For the case where M×K is 48, the (M, K) = (24, 2), (16, 3), (12, 4) or (8, 6);

[0190] For the case where M×K is 96, the (M, K) = (32, 3), (24, 4), (16, 6) or (12, 8).

[0191] Optionally, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the number K of the K CSI-RS resources and the number M of the antenna ports k are combined to include at least one of the following:

[0192] For the case where M is 64, K = 3, and the combination of K Ms k is (32, 16, 16); or, K = 4, and the combination of K Ms k is (32, 16, 8, 8);

[0193] For the case where M is 128, K = 5, and the combination of K Ms k is (32, 32, 32, 16, 16);

[0194] For the case where M is 48, K = 2, and the combination of K Ms k is (32, 16); or, K = 3, and the combination of K Ms k is (24, 12, 12);

[0195] For the case where M is 96, K = 4, and the combination of K Ms k is (32, 32, 16, 16) or (32, 24, 24, 16);

[0196] where M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1,..., K - 1}.

[0197] An embodiment of the present application further provides an information transmission device, which is applied to a network device and includes:

[0198] A first determination unit, configured to determine channel state information CSI reporting configuration information and resource configuration information of K channel state information reference signals CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1;

[0199] A first sending unit, configured to send the CSI reporting configuration information and the resource configuration information to a terminal; and send CSI-RS according to the resource configuration information;

[0200] A first receiving unit, configured to receive CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information.

[0201] Optionally, the number of antenna ports corresponding to the precoding matrix indicator PMI in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

[0202] Optionally, the resource configuration information includes at least one of the following:

[0203] Configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources;

[0204] Configuration information of K CSI-RS resource sets, where one CSI-RS resource set includes one CSI-RS resource.

[0205] Optionally, when the resource configuration information includes configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information DCI is located;

[0206] Wherein, the DCI refers to the DCI that triggers the CSI.

[0207] Optionally, the K CSI-RS resources occupy the same bandwidth;

[0208] And / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

[0209] Optionally, the resource configuration information indicates that the K CSI-RS resources are repeatedly transmitted according to the resource element RE distribution occupied by the K CSI-RS resources in the smallest unit;

[0210] Wherein, the smallest unit is configured with at least one of the following:

[0211] Configuration 1: Includes one time slot in the time domain and one PRB in the frequency domain;

[0212] Configuration 2: Includes at least two time slots in the time domain and one PRB in the frequency domain;

[0213] Configuration 3: Includes one time slot in the time domain and at least two PRBs in the frequency domain.

[0214] Optionally, under Configuration 2:

[0215] The number of CSI-RS resources included in each time slot is the same; and / or,

[0216] The orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by CSI-RS resources in at least two time slots are different.

[0217] Optionally, under the configuration 3:

[0218] The number of CSI-RS resources included in each physical resource block (PRB) is the same; and / or,

[0219] The OFDM symbols and subcarrier positions occupied by CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by CSI-RS resources in at least two PRBs are different.

[0220] Optionally, when at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed by frequency division multiplexing (FDM) and / or time division multiplexing (TDM) within one time slot and one PRB.

[0221] Optionally, when using the FDM method for multiplexing, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when using the TDM method for multiplexing, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0222] Optionally, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured as 0, 1, 2, or 3;

[0223] Wherein, the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained according to the bandwidth occupied by the CSI-RS resources;

[0224] The PRB offset value of 0 indicates that the CSI-RS resources occupy the PRBs where the common resource block (CRB) index mod 4 is equal to 0;

[0225] The PRB offset value of 1 indicates that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 1;

[0226] The PRB offset value of 2 means that the CSI-RS resource occupies the PRBs where the CRB index modulo 4 is equal to 2;

[0227] The PRB offset value of 3 means that the CSI-RS resource occupies the PRBs where the CRB index modulo 4 is equal to 3.

[0228] Optionally, under the Configuration 1 or Configuration 2: the density ρ value of the CSI-RS resource is 1, 0.5 or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same;

[0229] And / or, under the Configuration 3: the density ρ value of the CSI-RS resource is 0.5 or 0.25; and the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different.

[0230] Optionally, the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following:

[0231] The density ρ values of the K CSI-RS resources are all 0.5, at least one of the CSI-RS resources is configured in even-numbered PRBs, and at least one other CSI-RS resource is configured in odd-numbered PRBs; all the CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ value of the combined CSI-RS resource is 0.5;

[0232] The density ρ values of the K CSI-RS resources are all 0.25, and at least 4 of the PRB offset values of the K CSI-RS resources are different from each other; all the CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ value of the combined CSI-RS resource is 0.25.

[0233] Optionally, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following:

[0234] For the case where M×K is 64, the (M, K) = (32, 2), (16, 4) or (8, 8);

[0235] For the case where M×K is 128, the (M, K) = (32, 4), (16, 8) or (8, 16);

[0236] For the case where M×K is 48, (M, K) = (24, 2), (16, 3), (12, 4) or (8, 6);

[0237] For the case where M×K is 96, (M, K) = (32, 3), (24, 4), (16, 6) or (12, 8).

[0238] Optionally, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number of antenna ports M k includes at least one of the following:

[0239] For being 64, K = 3, and the combination of K Ms k is (32, 16, 16); or, K = 4, and the combination of K Ms k is (32, 16, 8, 8);

[0240] For being 128, K = 5, and the combination of K Ms k is (32, 32, 32, 16, 16);

[0241] For being 48, K = 2, and the combination of K Ms k is (32, 16); or, K = 3, and the combination of K Ms k is (24, 12, 12);

[0242] For being 96, K = 4, and the combination of K Ms k is (32, 32, 16, 16) or (32, 24, 24, 16);

[0243] where, M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1,..., K - 1}.

[0244] An embodiment of the present application further provides an information transmission device, which is applied to a terminal and includes:

[0245] A second receiving unit, configured to receive CSI reporting configuration information sent by a network device and resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1;

[0246] A third receiving unit, configured to receive the CSI-RS sent by the network device according to the resource configuration information.

[0247] A first generation unit, configured to generate a CSI according to the received CSI-RS and the CSI reporting configuration information.

[0248] A first reporting unit, configured to report the CSI to the network device.

[0249] Optionally, the number of antenna ports corresponding to the PMI in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

[0250] Optionally, the resource configuration information includes at least one of the following:

[0251] Configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources;

[0252] Configuration information of K CSI-RS resource sets, where one CSI-RS resource set includes one CSI-RS resource.

[0253] Optionally, when the resource configuration information includes configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information DCI is located;

[0254] Wherein, the DCI refers to the DCI that triggers the CSI.

[0255] Optionally, the K CSI-RS resources occupy the same bandwidth;

[0256] And / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

[0257] Optionally, the resource configuration information indicates that the K CSI-RS resources are repeatedly transmitted according to the resource element RE distribution occupied by the K CSI-RS resources in the minimum unit;

[0258] Wherein, the minimum unit is configured with at least one of the following:

[0259] Configuration 1: including one time slot in the time domain and one PRB in the frequency domain;

[0260] Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain;

[0261] Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain.

[0262] Optionally, under the said Configuration 2:

[0263] The number of CSI-RS resources included in each time slot is the same; and / or,

[0264] The orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

[0265] Optionally, under the said Configuration 3:

[0266] The number of CSI-RS resources included in each PRB is the same; and / or,

[0267] The OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

[0268] Optionally, when at least two of the said CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed in one time slot and one PRB by means of frequency division multiplexing (FDM) and / or time division multiplexing (TDM).

[0269] Optionally, when using the FDM method for multiplexing, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when using the TDM method for multiplexing, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0270] Optionally, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured as 0, 1, 2, or 3;

[0271] Wherein, the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained according to the bandwidth occupied by the CSI-RS resources;

[0272] The fact that the PRB offset value is 0 indicates that the CSI-RS resource occupies the PRB where the common resource block CRB index modulo 4 is equal to 0;

[0273] The fact that the PRB offset value is 1 indicates that the CSI-RS resource occupies the PRB where the CRB index modulo 4 is equal to 1;

[0274] The fact that the PRB offset value is 2 indicates that the CSI-RS resource occupies the PRB where the CRB index modulo 4 is equal to 2;

[0275] The fact that the PRB offset value is 3 indicates that the CSI-RS resource occupies the PRB where the CRB index modulo 4 is equal to 3.

[0276] Optionally, under the Configuration 1 or Configuration 2: the density ρ value of the CSI-RS resource is 1, 0.5 or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same;

[0277] And / or, under the Configuration 3: the density ρ value of the CSI-RS resource is 0.5 or 0.25; and the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different.

[0278] Optionally, the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following:

[0279] The density ρ values of the K CSI-RS resources are all 0.5, at least one of the CSI-RS resources is configured in even-numbered PRBs, and at least one other CSI-RS resource is configured in odd-numbered PRBs; all CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ value of the combined CSI-RS resource is 0.5;

[0280] The density ρ values of the K CSI-RS resources are all 0.25, and the PRB offset values of at least 4 of the CSI-RS resources are different from each other; all CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ value of the combined CSI-RS resource is 0.25.

[0281] Optionally, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following:

[0282] For the case where M×K is 64, (M, K) = (32, 2), (16, 4) or (8, 8);

[0283] For the case where M×K is 128, (M, K) = (32, 4), (16, 8) or (8, 16);

[0284] For the case where M×K is 48, (M, K) = (24, 2), (16, 3), (12, 4) or (8, 6);

[0285] For the case where M×K is 96, (M, K) = (32, 3), (24, 4), (16, 6) or (12, 8).

[0286] Optionally, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number M of antenna ports k includes at least one of the following:

[0287] For being 64, K = 3, and the combination of K M's k is (32, 16, 16); or, K = 4, and the combination of K M's k is (32, 16, 8, 8);

[0288] For being 128, K = 5, and the combination of K M's k is (32, 32, 32, 16, 16);

[0289] For being 48, K = 2, and the combination of K M's k is (32, 16); or, K = 3, and the combination of K M's k is (24, 12, 12);

[0290] For being 96, K = 4, and the combination of K M's k is (32, 32, 16, 16) or (32, 24, 24, 16);

[0291] wherein, M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1, …, K−1}.

[0292] The embodiments of the present application further provide a non-transitory readable storage medium storing a computer program for causing a processor to execute the method on the network device side or the terminal side described above.

[0293] The beneficial effects of the above technical solution of this application are as follows:

[0294] In the above solution, the information transmission method determines the channel state information CSI reporting configuration information and the resource configuration information of K channel state information reference signals CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; sends the CSI reporting configuration information and the resource configuration information to the terminal; and sends the CSI-RS according to the resource configuration information; receives the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information; and can support multiple CSI-RS resources to be associated with one reporting configuration by configuring the number of antenna ports in the reporting configuration information to be equal to the total number of antenna ports of the K CSI-RS resources, so that the subsequent terminal generates one CSI for the multiple CSI-RS resources, and further realizes the joint measurement and reporting for multiple CSI resources. Description of the Drawings

[0295] Figure 1 It is a schematic diagram of the wireless communication system architecture according to an embodiment of this application;

[0296] Figure 2 It is a schematic flow chart of the information transmission method according to an embodiment of this application Figure 1 ;

[0297] Figure 3 It is a schematic flow chart of the information transmission method according to an embodiment of this application Figure 2 ;

[0298] Figure 4 It is a schematic diagram of the CSI-RS resource configuration according to an embodiment of this application Figure 1 ;

[0299] Figure 5 It is a schematic diagram of the CSI-RS resource configuration according to an embodiment of this application Figure 2 ;

[0300] Figure 6 It is a schematic diagram of the CSI-RS resource configuration according to an embodiment of this application Figure 3 ;

[0301] Figure 7 It is a schematic diagram of the CSI-RS resource configuration according to an embodiment of this application Figure 4 ;

[0302] Figure 8 It is a schematic diagram of the CSI-RS resource configuration according to an embodiment of this application Figure 5 ;

[0303] Figure 9Schematic diagram of CSI-RS resource configuration according to an embodiment of the present application Figure 6 ;

[0304] Figure 10 Schematic diagram of the structure of an information transmission device according to an embodiment of the present application Figure 1 ;

[0305] Figure 11 Schematic diagram of the structure of an information transmission device according to an embodiment of the present application Figure 2 ;

[0306] Figure 12 Schematic diagram of the structure of an information transmission apparatus according to an embodiment of the present application Figure 1 ;

[0307] Figure 13 Schematic diagram of the structure of an information transmission apparatus according to an embodiment of the present application Figure 2 。 Detailed implementation manners

[0308] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0309] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0310] In the embodiments of the present application, the term "plurality" refers to two or more, and other quantifiers are similar.

[0311] It should be noted here that the technical solutions provided in the embodiments of this application can be applied to multiple systems, especially 5G systems. For example, the applicable systems can be the global system of mobile communication (GSM) system, code division multiple access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (NR) system, etc. Both terminal devices and network devices are included in these multiple systems. The system may also include a core network part, such as an Evolved Packet System (EPS), 5G System (5GS), etc.

[0312] Figure 1 The block diagram of a wireless communication system to which the embodiments of this application can be applied is shown. The wireless communication system includes a terminal device (which can also be simply referred to as a terminal) and a network device.

[0313] The terminal device involved in the embodiments of the present application can be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device can be called a User Equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) via a Radio Access Network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges voice and / or data with the wireless access network. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device can also be called a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, which is not limited in the embodiments of the present application.

[0314] The network device involved in the embodiments of the present application can be a base station, which can include multiple cells that provide services to terminals. Depending on different specific application scenarios, the base station can also be referred to as an access point, or can be a device in the access network that communicates with wireless terminal devices through one or more sectors on the air interface, or other names. The network device can be used to mutually replace the received air frames and Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application can be a network device (Base Transceiver Station, BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or can be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or can also be an evolved network device (evolutional Node B, eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (the next Generation Node B, gNB) in a 5G network architecture (next generation system), or can also be a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of the present application do not limit this. In some network architectures, the network device can include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit can also be arranged separately geographically.

[0315] A network device and a terminal device can each use one or more antennas for multi-input multi-output (MIMO) transmission. The MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). According to the form and number of root antenna combinations, the MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or it can be diversity transmission, precoding transmission, beamforming transmission, etc.

[0316] First, the content involved in the solution provided in the embodiments of the present application will be introduced below.

[0317] (1) In the current New Radio (NR) system, the number of ports supported by a CSI-RS resource is 1, 2, 4, 8, 12, 16, 24, or 32.

[0318] (2) CSI is configured through high-layer parameters. If the codebookType (codebook type) is configured as 'typeII', 'typeII-PortSelection (port selection)', 'typeII-r16', 'typeII-PortSelection-r16', or 'typeII-PortSelection-r17', then there can be only one CSI-RS resource in each CSI-RS resource set in the resource configuration for channel measurement.

[0319] (3) If the CSI-RS resource is aperiodic, each NZP (non-zero power)-CSI-RS-ResourceSet configures an aperiodicTriggeringOffset to indicate the slot offset of the slot where all CSI-RS resources in the set are located relative to the slot of the downlink control information (DCI) that triggers the aperiodic CSI report. If the CSI-RS resource is periodic, each CSI-RS resource in a CSI-RS resource set can be independently configured with a period and an offset through periodicityAndOffset (period and offset).

[0320] (4) Each CSI-RS resource is configured with resource mapping through CSI-RS-ResourceMapping, including: frequency-domain position indication, number of antenna ports, time-domain position indication, Code Division Mutiplexing (CDM) type, density, and Physical Resource Block (PRB) offset.

[0321] Among them, 1) The frequency-domain position indication indicates the subcarrier positions occupied within a PRB through a bitmap, and is configured by the higher-layer parameter frequencyDomainAllocation.

[0322] 2) The number of antenna ports supports 1, 2, 4, 8, 12, 16, 24, and 32.

[0323] 3) The time-domain positions l0 ∈ {0, 1, …, 13} and l1 ∈ {2, 3, …, 12} are respectively configured by the higher-layer parameters firstOFDMSymbolInTimeDomain and firstOFDMSymbolInTimeDomain2 (the first OFDM (Orthogonal Frequency Division Multiplexing) symbol in the time domain and the first OFDM symbol in the time domain 2).

[0324] 4) The CDM type (cdm-Type) supports cdm8-FD2-TD4, cdm4-FD2-TD2, fd-CDM2, and noCDM; where FD represents frequency division and TD represents time division.

[0325] 5) The density supports 1, 0.5, and 3. When the density is 0.5, the PRB offset supports evenPRBs (even PRBs) and oddPRBs (odd PRBs).

[0326] 6) All ports of the CSI-RS resource are within 1 slot and 1 PRB. The distribution of the resource elements (REs) occupied within (1 slot, 1 PRB) supports the following configurations, where may include k0, k1, k2, etc., may include l0, l1, l2, etc., and the CDM group index j corresponds to k′ represents the starting frequency-domain index within the CDM group, and l′ represents the starting time-domain index within the CDM group:

[0327]

[0328]

[0329]

[0330] (5) Each CSI-RS resource gives the CSI-RS occupied bandwidth position through the parameter freqBand (frequency bandwidth), and is specifically configured by the initial resource block RB position and the bandwidth width. The configuration is indicated in units of 4 RBs. The reference point of the initial RB position starts from the common resource block (CRB) 0, and the bandwidth size needs to meet the minimum bandwidth requirement, that is Configure the bandwidth size for the CSI-RS.

[0331] (6) Each CSI-RS resource defines the BWP ID where the CSI-RS is located through the parameter bwp-Id (bandwidth part identifier).

[0332] Based on the above, the embodiments of the present application provide an information transmission method, apparatus, and device to solve the problem in the prior art that multiple CSI-RS resources cannot be jointly reported. Among them, the method, apparatus, and device are based on the same application concept. Since the principles of the method, apparatus, and device for solving problems are similar, the implementation of the method, apparatus, and device can be referred to each other, and the repeated parts will not be described again.

[0333] The information transmission method provided by the embodiments of the present application is applied to a network device, such as Figure 2 shown, including:

[0334] Step 21: Determine the channel state information CSI reporting configuration information and the resource configuration information of K channel state information reference signals CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1.

[0335] Among them, the CSI reporting configuration information can be specifically implemented by configuring the number of antenna ports through (N1, N2). N1 represents the number of antenna ports in the first dimension in a polarization direction; N2 represents the number of antenna ports in the second dimension in the polarization direction; regarding the association between the K CSI-RS resources and the CSI reporting configuration information and "the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources", it is to support generating a CSI based on the K CSI-RS resources subsequently.

[0336] Step 22: Send the CSI reporting configuration information and the resource configuration information to the terminal; and send the CSI-RS according to the resource configuration information.

[0337] Among them, through step 12, the supporting terminal receives CSI-RS according to the resource configuration information, then measures the received CSI-RS and combines it with the CSI reporting configuration information to obtain CSI, and then sends it to the network device.

[0338] Step 23: Receive the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information.

[0339] Among them, the CSI reported by the terminal is the information feedback for the CSI-RS sent on K CSI-RS resources; specifically, the number of antenna ports in the reporting configuration information configured by the network device is equal to the total number of antenna ports of the K CSI-RS resources, and the terminal can generate CSI corresponding to the number of antenna ports according to this configuration and send it to the network device.

[0340] The information transmission method provided by the embodiments of the present application determines the CSI reporting configuration information of the channel state information CSI, and the resource configuration information of K channel state information reference signal CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; the K is an integer greater than 1; sends the CSI reporting configuration information and the resource configuration information to the terminal; and sends CSI-RS according to the resource configuration information; receives the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information; can support multiple CSI-RS resources to be associated with one reporting configuration by configuring the number of antenna ports in the reporting configuration information to be equal to the total number of antenna ports of the K CSI-RS resources, so that the terminal generates one CSI for the multiple CSI-RS resources subsequently, and further realizes the joint measurement and reporting for multiple CSI resources.

[0341] Among them, the number of antenna ports corresponding to the precoding matrix indicator PMI in the CSI is equal to the total number of antenna ports of the K CSI-RS resources. In this way, the CSI for K resources can be accurately obtained according to the PMI. It should be noted that in this solution, in some abnormal situations (such as the situation where there is a collision between CSI-RS resources and other signal resources), some of the K CSI-RS resources cannot be transmitted. At this time, the terminal can not report CSI, or the terminal generates and reports one CSI based on the successfully received s CSI-RS to ensure that the network device still has available CSI. The s < K; the number of antenna ports corresponding to the PMI in the CSI is equal to the total number of antenna ports of the successfully received s CSI-RS.

[0342] In the embodiments of the present application, the resource configuration information includes at least one of the following: (1) configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources; (2) configuration information of K CSI-RS resource sets, and one CSI-RS resource set includes one CSI-RS resource. Among them, the configuration information of the CSI-RS resource set may include: resource set ID and IDs of the included CSI-RS resources, etc. In item (1), each CSI-RS resource has an independent resource ID, and information such as the time domain and frequency domain positions of each CSI-RS resource can be independently configured, with flexible configuration but large signaling overhead for configuration; in item (2), the CSI-RS resources in each CSI-RS resource set may have the same ID, with small signaling overhead for configuration but low configuration flexibility.

[0343] Among them, when the resource configuration information includes configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot among the at least two consecutive time slots and the time slot where the downlink control information DCI is located; where the DCI refers to the DCI that triggers the CSI. After receiving the DCI, based on the time slot Y where the DCI is located, the terminal knows that the K CSI-RS resources will be transmitted in time slots (Y + offset value) to (Y + offset value + K - 1), so the terminal will receive the CSI-RS in the time slots. For example: if the offset value configuration information indicates that the offset value between the first time slot X among the at least two consecutive time slots and the time slot Y where the downlink control information DCI is located is 2, then it can be determined that the first time slot X = Y + 2. Since the K CSI-RS resources occupy consecutive time slots, the information of the other time slots occupied by the K CSI-RS resources can also be obtained.

[0344] In the embodiments of the present application, the K CSI-RS resources occupy the same bandwidth; and / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same. The K CSI-RS resources are all measurement resources for generating a PMI, and a PMI is information for a configured bandwidth, so it is necessary to constrain the bandwidths of the K CSI-RS resources to be the same. When the K CSI-RS resources are configured for periodic transmission, the time domain relative relationship of the K CSI-RS resources should be the same each time they are transmitted, so it is necessary to constrain the periods of the K CSI-RS resources to be the same. Among them, the same bandwidth can mean the same total number of PRBs; regarding "the same transmission period", for example: the K CSI-RS resources are all transmitted every 40 time slots.

[0345] Among them, the resource allocation information indicates that the K CSI-RS resources are repetitively transmitted according to the resource element (RE) distribution occupied by the K CSI-RS resources in the smallest unit; wherein, the smallest unit is configured with at least one of the following: Configuration 1: including one time slot in the time domain and one physical resource block (PRB) in the frequency domain; Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain; Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain. For Configuration 1, the number of time slots and PRBs included in the smallest unit is the smallest, which can ensure small delay in the time domain and fine granularity in the frequency domain. However, CSI-RS resources with a larger number of ports cannot fit within (1 slot, 1 PRB), so Configurations 2 and 3 need to be used. For Configuration 2, the number of time slots included in the smallest unit is 2, and the delay is relatively large; it is applicable to scenarios where time-domain selectivity is not sensitive. For Configuration 3, the number of PRBs included in the smallest unit is 2, and the frequency-domain density cannot support 1, with a maximum support of 0.5; it is applicable to scenarios where frequency-domain selectivity is not sensitive. Regarding repetitive transmission: Each of the K CSI-RS resources can be configured with information such as the frequency-domain and time-domain position indication, frequency-domain density, and time-domain period within the smallest unit; each resource is repetitively transmitted in the frequency domain according to the configured frequency-domain density based on the distribution within the smallest unit, and is repetitively transmitted in the time domain according to the configured period. Among them, under Configuration 1, the K CSI-RS resources can be multiplexed within (1 slot, 1 PRB) through frequency-division multiplexing (FDM) and / or time-division multiplexing (TDM).

[0346] In the embodiment of the present application, under the configuration 2: (1) the number of CSI-RS resources included in each time slot is the same; and / or, (2) the orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different. If the design of the time-domain and frequency-domain resource usage rule patterns occupied by the K CSI-RS resources can reduce the fragmentation of resource allocation and improve resource utilization, therefore, the configuration of the K CSI-RS resources is constrained in the above manner. Among them, regarding item (1) under configuration 2, for example: the minimum unit includes 2 time slots in the time domain, and the number of CSI-RS resources K = 2, then it can be that 1 CSI-RS resource is included in 1 time slot; regarding item (2) under configuration 2, the minimum unit includes 2 time slots in the time domain, and the number of CSI-RS resources K = 2, then it can be that in time slot 1, CSI-RS resource 1 occupies OFDM symbol 1 and subcarrier 1, and in time slot 2, CSI-RS resource 2 occupies OFDM symbol 1 and subcarrier 1; or, in time slot 1, CSI-RS resource 1 occupies the last OFDM symbol and subcarrier 1, and in time slot 2, CSI-RS resource 2 occupies the first OFDM symbol and subcarrier 1; or, in time slot 1, CSI-RS resource 1 occupies OFDM symbol 1 and subcarrier 1, and in time slot 2, CSI-RS resource 2 occupies OFDM symbol 2 and subcarrier 1.

[0347] Among them, under the said Configuration 3: (1) The number of CSI-RS resources included in each PRB is the same; and / or, (2) The OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different. If the design of the time-domain and frequency-domain resource usage rule patterns occupied by the K CSI-RS resources can reduce the fragmentation of resource allocation and improve resource utilization, therefore, the configuration of the K CSI-RS resources is constrained in the above manner. Among them, regarding item (1) under Configuration 3, for example: The minimum unit includes 2 PRBs in the frequency domain, and the number of CSI-RS resources K = 2, then it can be that 1 PRB contains 1 CSI-RS resource; regarding item (2) under Configuration 3, the minimum unit includes 2 PRBs in the time domain, and the number of CSI-RS resources K = 2, then it can be that in PRB1, CSI-RS resource 1 occupies OFDM symbol 1 and subcarrier 1, and in PRB2, CSI-RS resource 2 occupies OFDM symbol 1 and subcarrier 1; or, in PRB1, CSI-RS resource 1 occupies OFDM symbol 1 and the last subcarrier, and in time slot 2, CSI-RS resource 2 occupies OFDM symbol 1 and the first subcarrier; or, in time slot 1, CSI-RS resource 1 occupies OFDM symbol 1 and subcarrier 1, and in time slot 2, CSI-RS resource 2 occupies OFDM symbol 1 and subcarrier 2.

[0348] In an embodiment of the present invention, when at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources perform resource multiplexing in one time slot and one PRB by means of frequency division multiplexing FDM and / or time division multiplexing TDM. If the design of the time-domain and frequency-domain resource usage rule patterns occupied by the K CSI-RS resources can reduce the fragmentation of resource allocation and improve resource utilization, therefore, the configuration of the K CSI-RS resources is constrained in the above manner. Among them, "at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain" can be understood as including more than one CSI-RS resource in (1 slot, 1 PRB).

[0349] Among them, when using the FDM method for multiplexing, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when using the TDM method for multiplexing, the subcarrier positions occupied by the K CSI-RS resources are the same. If the design of the time-domain and frequency-domain resource usage rule patterns for the K CSI-RS resources can reduce the fragmentation of resource allocation and improve resource utilization rate, therefore, the configuration of the K CSI-RS resources is constrained by the above methods. For example: when using the FDM method for multiplexing, 2 CSI-RS resources both occupy the same OFDM symbol and different subcarriers; when using the TDM method for multiplexing, 2 CSI-RS resources both occupy the same subcarrier and different OFDM symbols.

[0350] In the embodiment of the present invention, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured as 0, 1, 2, or 3; where the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained according to the bandwidth occupied by the CSI-RS resources; the PRB offset value of 0 means that the CSI-RS resources occupy the PRBs where the common resource block CRB index mod 4 is equal to 0; the PRB offset value of 1 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 1; the PRB offset value of 2 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 2; the PRB offset value of 3 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 3. Using the above configuration method of the density ρ and the PRB offset value can ensure that the multiple PRBs occupied by the K CSI-RS resources are continuous, so as to avoid the influence of the differences between different PRBs on different ports of the K CSI-RS resources. For example, if the PRB offset value configured for a CSI-RS resource is 1, and the CRB index corresponding to the occupied bandwidth configured for this CSI-RS resource is 0 to 49, then the CSI-RS resource is transmitted on the PRB resources where the CRB index is 1, 5, 9, 13, etc.

[0351] Among them, under Configuration 1 or Configuration 2: the value of the density ρ of the CSI-RS resources is 1, 0.5, or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same; and / or, under Configuration 3: the value of the density ρ of the CSI-RS resources is 0.5 or 0.25; and the densities of the K CSI-RS resources are the same, and at least one of the PRB offset values of the K CSI-RS resources K different values. By using the above configuration method of the density ρ and the PRB offset value, it can be ensured that when the K CSI-RS resources occupy multiple PRBs, the multiple PRBs are continuous, so as to avoid the influence of the differences between different PRBs on different ports of the K CSI-RS resources. Among them, under Configuration 1 or Configuration 2, the minimum unit includes one PRB. Therefore, it is possible to support multiple CSI-RS resources distributed within at least one PRB. So the supported values of the density ρ are 1, 0.5 or 0.25. Under Configuration 3, the minimum unit includes multiple PRBs. Therefore, it does not support K CSI-RS resources distributed within one PRB. So the supported values of the density ρ are 0.5 or 0.25. And it is necessary to distribute the K CSI-RS resources within multiple PRBs through different PRB offset values.

[0352] In the embodiments of the present invention, the density ρ of the K CSI-RS resources is the same, and at least one of the PRB offset values of the K CSI-RS resources has K different values, including at least one of the following: (1) The density ρ values of the K CSI-RS resources are all 0.5. At least one of the CSI-RS resources is configured in an even-numbered PRB, and at least one other CSI-RS resource is configured in an odd-numbered PRB. All CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ value of the combined CSI-RS resource is 0.5. (2) The density ρ values of the K CSI-RS resources are all 0.25. At least 4 of the PRB offset values of the CSI-RS resources are different from each other. All CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ value of the combined CSI-RS resource is 0.25. By using the above configuration method of the density ρ and the PRB offset value, it can be ensured that the multiple PRBs occupied by the K CSI-RS resources are continuous, so as to avoid the influence of the differences between different PRBs on different ports of the K CSI-RS resources. Among them, when the density ρ value is 0.5, through "at least one of the CSI-RS resources is configured in an even-numbered PRB, and at least one other CSI-RS resource is configured in an odd-numbered PRB", it is possible to support the distribution of resources within at least two PRBs. The situation where the density ρ value is 0.25 is similar. In addition, "at least one of the CSI-RS resources is configured in an even-numbered PRB, and at least one other CSI-RS resource is configured in an odd-numbered PRB" can also be understood as: at least 2 of the PRB offset values of the CSI-RS resources are different from each other; one PRB offset value is odd and one PRB offset value is even.

[0353] Among them, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following: for the case where M×K is 64, the (M, K) = (32, 2), (16, 4), or (8, 8); for the case where M×K is 128, the (M, K) = (32, 4), (16, 8), or (8, 16); for the case where M×K is 48, the (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6); for the case where M×K is 96, the (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8). When M×K is a certain value, there are many combinations of the values of M and K. If all combinations are supported, the implementation complexity of the terminal and the network device is high. Therefore, considering the balance between complexity and performance, this solution is selected to support the above combinations. Among them, for the case where M×K is 64, the (M, K) = (32, 2), (16, 4), or (8, 8) means: M = 32 and K = 2, or M = 16 and K = 4, or M = 8 and K = 8, and the other cases are similar. In addition, the CDM types of the K CSI-RS resources may be the same, but this is not limited thereto.

[0354] In the embodiments of the present application, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the number K of the K CSI-RS resources and the number of antenna ports M k of the combination include at least one of the following: (1) for the case where it is 64, K = 3, and the combination of K M k is (32, 16, 16); or, K = 4, and the combination of K M k is (32, 16, 8, 8); (2) for the case where it is 128, K = 5, and the combination of K M k is (32, 32, 32, 16, 16); (3) for the case where it is 48, K = 2, and the combination of K M k is (32, 16); or, K = 3, and the combination of K M k is (24, 12, 12); (4) for the case where it is 96, K = 4, and the combination of K M k is (32, 32, 16, 16) or (32, 24, 24, 16); where M k represents the number of antenna ports of the kth CSI-RS resource; k ∈ {0, 1,..., K - 1}. When it is a certain value, M kThere are many combinations of the values of and K. If all combinations are supported, the implementation complexity of the terminal and the network device is high. Therefore, considering the balance between complexity and performance, this solution is selected to support the above combinations. Among them, regarding the case where it is 64, it can be understood as the case where the sum of the antenna port numbers corresponding to all CSI-RS resources is equal to 64. "K = 3, and the combination of K M k is (32, 16, 16)" means that the number of CSI-RS resources is equal to 3, the number of antenna ports corresponding to one CSI-RS resource = 32, and the number of antenna ports corresponding to the remaining two CSI-RS resources are both 16; other cases are similar.

[0355] An embodiment of the present invention further provides an information transmission method, which is applied to a terminal. As Figure 3 shown, it includes:

[0356] Step 31: Receive the CSI reporting configuration information sent by the network device, and the resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1.

[0357] Among them, the CSI reporting configuration information can be specifically implemented to configure the number of antenna ports through (N1, N2). N1 represents the number of antenna ports in the first dimension in one polarization direction; N2 represents the number of antenna ports in the second dimension in the polarization direction; regarding the association between the K CSI-RS resources and the CSI reporting configuration information and "the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources", it is to support generating a CSI based on the K CSI-RS resources subsequently.

[0358] Step 32: Receive the CSI-RS sent by the network device according to the resource configuration information.

[0359] Through step 32, it can support the terminal to receive CSI-RS at the resource position where the network device sends signals.

[0360] Step 33: Generate a CSI according to the received CSI-RS and the CSI reporting configuration information.

[0361] This can support generating a CSI based on multiple CSI-RS resources; specifically, it supports the terminal to measure the received CSI-RS and combine the CSI reporting configuration information to obtain a CSI, and then send it to the network device.

[0362] Step 34: Report the CSI to the network device.

[0363] That is, the CSI reported by the terminal is information about CSI-RS feedback sent on K CSI-RS resources. Specifically, the number of antenna ports in the reporting configuration information configured by the network device is equal to the total number of antenna ports of the K CSI-RS resources, and the terminal can generate CSI corresponding to the number of antenna ports according to this configuration and send it to the network device.

[0364] The information transmission method provided by the embodiments of this application receives CSI reporting configuration information sent by a network device and resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information. The number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources. K is an integer greater than 1. According to the resource configuration information, the network device sends CSI-RS is received. According to the received CSI-RS and the CSI reporting configuration information, a CSI is generated. The CSI is reported to the network device. By configuring the number of antenna ports in the reporting configuration information to be equal to the total number of antenna ports of the K CSI-RS resources, it is possible to support multiple CSI-RS resources to be associated with one reporting configuration, so that the terminal can generate one CSI for the multiple CSI-RS resources subsequently, and then realize joint measurement and reporting for multiple CSI resources.

[0365] Among them, the number of antenna ports corresponding to the PMI in the CSI is equal to the total number of antenna ports of the K CSI-RS resources. In this way, the CSI for K resources can be accurately obtained according to the PMI.

[0366] In the embodiments of this application, the resource configuration information includes at least one of the following: (1) configuration information of a CSI-RS resource set, and the CSI-RS resource set includes the K CSI-RS resources; (2) configuration information of K CSI-RS resource sets, and one CSI-RS resource set includes one CSI-RS resource. Such a setting of the CSI-RS resource set including CSI-RS resources can support various configurations of CSI-RS resources.

[0367] Among them, when the resource configuration information includes configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information DCI is located. Among them, the DCI refers to the DCI that triggers the CSI. Such a setting of the offset value configuration information can accurately obtain the offset of the CSI-RS resource and save configuration resources.

[0368] In the embodiments of the present application, the K CSI-RS resources occupy the same bandwidth; and / or, when the transmission types of the K CSI-RS resources are all configured for periodic transmission, the transmission periods of the K CSI-RS resources are the same. Setting the bandwidth occupied by the CSI-RS resources and / or the transmission period in this way can support the accurate transmission of the K CSI-RS resources.

[0369] Among them, the resource configuration information indicates that the K CSI-RS resources are repetitively transmitted according to the resource element (RE) distribution occupied by the K CSI-RS resources in the smallest unit; wherein, the smallest unit is configured with at least one of the following: Configuration 1: including one time slot in the time domain and one physical resource block (PRB) in the frequency domain; Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain; Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain. Setting the transmission mechanism of the K CSI-RS resources in this way can accurately implement the repetitive transmission of the K CSI-RS resources.

[0370] In the embodiments of the present application, under Configuration 2: (1) the number of CSI-RS resources included in each time slot is the same; and / or, (2) the orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different. Setting the resource distribution in this way can configure the transmission under Configuration 2 in multiple ways.

[0371] Among them, under Configuration 3: (1) the number of CSI-RS resources included in each PRB is the same; and / or, (2) the OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different. Setting the resource distribution in this way can configure the transmission under Configuration 3 in multiple ways.

[0372] In the embodiments of the present application, when at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources perform resource multiplexing in one time slot and one PRB by means of frequency division multiplexing (FDM) and / or time division multiplexing (TDM). Setting the resource multiplexing method in this way can support the accurate transmission of resources.

[0373] Among them, when using the FDM method for multiplexing, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when using the TDM method for multiplexing, the subcarrier positions occupied by the K CSI-RS resources are the same. Such a setting of the specific multiplexing means can support simple resource multiplexing.

[0374] In the embodiments of the present application, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured as 0, 1, 2, or 3; where the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained according to the bandwidth occupied by the CSI-RS resources; the PRB offset value of 0 means that the CSI-RS resources occupy the PRBs where the common resource block CRB index mod 4 is equal to 0; the PRB offset value of 1 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 1; the PRB offset value of 2 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 2; the PRB offset value of 3 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 3. Such a setting of the PRB offset value can support accurate resource transmission when the value of the density ρ is 0.25.

[0375] Among them, under the Configuration 1 or Configuration 2: the value of the density ρ of the CSI-RS resources is 1, 0.5, or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same; and / or, under the Configuration 3: the value of the density ρ of the CSI-RS resources is 0.5 or 0.25; and the densities of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different. Such a setting of the density and PRB offset value of the CSI-RS resources can clarify the specific density supported by the CSI-RS resources under a specific configuration, as well as the relationship between the densities and PRB offset values among multiple CSI-RS resources; based on this, it can support that multiple CSI-RS resources can be combined into the required patterns.

[0376] In the embodiments of the present application, the densities ρ of the K CSI-RS resources are the same, and at least different values, including at least one of the following: (1) the density ρ of the K CSI-RS resources is 0.5, at least one of the CSI-RS resources is configured in an even PRB, and at least one other CSI-RS resource is configured in an odd PRB; all CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ of the combined CSI-RS resource is 0.5; (2) the density ρ of the K CSI-RS resources is 0.25, and the PRB offset values of at least 4 of the CSI-RS resources are different from each other; all CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ of the combined CSI-RS resource is 0.25. Setting the density and PRB offset values of the CSI-RS resources in this way can clarify the distribution of the K CSI-RS resources.

[0377] Among them, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following: for the case where M×K is 64, the (M, K) = (32, 2), (16, 4), or (8, 8); for the case where M×K is 128, the (M, K) = (32, 4), (16, 8), or (8, 16); for the case where M×K is 48, the (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6); for the case where M×K is 96, the (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8). Setting the combination (M, K) in this way can accurately implement multiple solutions with more than 32 ports.

[0378] In the embodiments of the present application, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number of antenna ports M k includes at least one of the following: (1) for the case where is 64, K = 3, and the combination of K Ms k is (32, 16, 16); or, K = 4, and the combination of K Ms k is (32, 16, 8, 8); (2) for the case where is 128, K = 5, and the combination of K Ms k is (32, 32, 32, 16, 16); (3) for the case where is 48, K = 2, and the combination of K Ms k is (32, 16); or, K = 3, and the combination of K Ms k is (24, 12, 12); (4) for the case where For the case where it is 96, K = 4, and K Ms k The combinations are (32, 32, 16, 16) or (32, 24, 24, 16); where, M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1, …, K−1}. Setting K and M k in this way can also accurately implement various solutions with more than 32 ports.

[0379] It should be noted here that the relevant content between the above network device and the terminal side can be referred to each other, and the repeated parts will not be elaborated.

[0380] Next, an example of the information transmission method provided in the embodiments of the present application will be given.

[0381] In view of the above technical problems, the embodiments of the present application provide an information transmission method, which can be specifically implemented as a transmission method of CSI-RS resources, mainly involving: a CSI is obtained based on K (K>1) CSI-RS resources configured, and the number of antenna ports in the CSI reporting configuration information = the total number of antenna ports of the K CSI-RS resources; the number of antenna ports corresponding to the PMI in the CSI reported by the terminal ≤ the total number of antenna ports of the K CSI-RS resources.

[0382] Specifically, the embodiments of the present application include solutions on both the network side and the terminal side:

[0383] Network side:

[0384] Step 1, the network side configures the reporting configuration information of a CSI (corresponding to the above CSI reporting configuration information), and configures K CSI-RS resources to be associated with the CSI, that is, K CSI-RS resources are associated with the reporting configuration information; the number of antenna ports in the CSI reporting configuration information = the total number of antenna ports of the K CSI-RS resources; where, K>1; corresponding to the above determination of the channel state information CSI reporting configuration information, and the resource configuration information of K channel state information reference signals CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1.

[0385] Step 2: The network side sends the reporting configuration information and the resource configuration information of K CSI-RS resources; subsequently, based on the resource configuration information, it sends CSI-RS and receives the CSI reported by the terminal, and the number of antenna ports corresponding to the PMI in the CSI ≤ the total number of antenna ports of the K CSI-RS resources. Corresponding to the above, it sends the CSI reporting configuration information and the resource configuration information to the terminal; and sends CSI-RS according to the resource configuration information; receives the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information.

[0386] Terminal side:

[0387] Step 1: The terminal side receives the reporting configuration information and the resource configuration information of K CSI-RS resources; subsequently, based on the resource configuration information, it receives CSI-RS; corresponding to the above, it receives the CSI reporting configuration information sent by the network device, and the resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; according to the resource configuration information, it receives the CSI-RS sent by the network device;

[0388] Step 2: The terminal side generates a CSI based on the received CSI-RS and reports it to the network side, and the number of antenna ports corresponding to the PMI in the CSI ≤ the total number of antenna ports of the K CSI-RS resources; corresponding to the above, it generates a CSI according to the received CSI-RS and the CSI reporting configuration information; reports the CSI to the network device.

[0389] The following specifically introduces the content involved in the embodiments of the present application, including the following three parts:

[0390] Part 1: The K CSI-RS resources support at least one of the following configuration methods:

[0391] Method 1: The network side configures a CSI-RS resource set, which contains K CSI-RS resources; corresponding to the above, the resource configuration information includes: the configuration information of a CSI-RS resource set, and the CSI-RS resource set contains the K CSI-RS resources.

[0392] When the transmission type of the CSI-RS resource is configured as aperiodic transmission and the K CSI-RS resources occupy T>1 consecutive slots in the time domain, the configuration information of the offset value between the slot where the DCI triggering the CSI is located and the slot where the CSI-RS is transmitted is used to indicate: the offset value between the first slot in the T consecutive slots and the slot where the DCI is located; the offset value configuration information corresponding to the above resource configuration information is used to indicate the offset value between the first slot in the at least two consecutive time slots and the slot where the downlink control information DCI is located.

[0393] Method 2: The network side configures K CSI-RS resource sets, where each resource set contains one CSI-RS resource; the corresponding resource configuration information described above includes: the configuration information of the K CSI-RS resource sets, and one CSI-RS resource set contains one CSI-RS resource.

[0394] Among them, for Method 1 and Method 2:

[0395] (1) The K CSI-RS resources occupy the same bandwidth.

[0396] (2) When the transmission types of the K CSI-RS resources are all configured as periodic transmission, the K resources have the same period.

[0397] Part Two: The time-domain and frequency-domain resource configurations occupied by the K CSI-RS resources support at least one of the following schemes:

[0398] Scheme 1: The K CSI-RS resources occupy 1 slot in the time domain and 1 PRB in the frequency domain. All ports of the K CSI-RS resources can be included in (1 slot, 1 PRB); the corresponding minimum unit adopts Configuration 1: including one time slot in the time domain and one PRB in the frequency domain. Among them, (1 slot, 1 PRB) means occupying 1 slot in the time domain and 1 PRB in the frequency domain.

[0399] Among them, the K CSI-RS resources are multiplexed in the (1 slot, 1 PRB) by means of frequency-division multiplexing (FDM) and / or time-division multiplexing (TDM).

[0400] Solution 2: The K CSI-RS resources occupy 1 PRB in the frequency domain and T consecutive slots in the time domain. All ports of the K CSI-RS resources can be included within (T slots, 1 PRB). The corresponding minimum unit adopts Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain. Here, (T slots, 1 PRB) means occupying T slots in the time domain and 1 PRB in the frequency domain.

[0401] The value of T can be {2, 3, 4}.

[0402] Optionally, (1) the number of CSI-RS resources included in each slot is the same; correspondingly, the number of CSI-RS resources included in each of the above time slots is the same;

[0403] (2) the OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each slot are the same; correspondingly, the orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by the CSI-RS resources in each of the above time slots are the same;

[0404] (3) the subcarrier positions occupied by the CSI-RS resources in each slot are the same, and the OFDM symbols occupied by the CSI-RS in two consecutive slots are consecutive; correspondingly, the subcarrier positions occupied by the CSI-RS resources in each of the above time slots are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive;

[0405] (4) the subcarrier positions occupied by the CSI-RS resources in each slot are the same, and the OFDM symbols occupied can be flexibly configured; correspondingly, the subcarrier positions occupied by the CSI-RS resources in each of the above time slots are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

[0406] Solution 3: The K CSI-RS resources occupy F consecutive PRBs in the frequency domain and 1 slot in the time domain. All ports of the K CSI-RS resources can be included within (1 slot, F PRBs). The corresponding minimum unit adopts Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain. Here, (1 slot, F PRBs) means occupying 1 slot in the time domain and F PRBs in the frequency domain.

[0407] The value of F can be {2, 4}.

[0408] Optionally, (1) the number of CSI-RS resources included in each PRB is the same; correspondingly, the number of CSI-RS resources included in each of the above PRBs is the same;

[0409] (2) The OFDM symbols and subcarrier positions occupied by the CSI-RS resources within each PRB are the same; correspondingly, the OFDM symbols and subcarrier positions occupied by the CSI-RS resources within each of the above PRBs are identical;

[0410] (3) The OFDM symbols occupied by the CSI-RS resources within each PRB are the same, and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; correspondingly, the OFDM symbols occupied by the CSI-RS resources within each of the above PRBs are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive;

[0411] (4) The OFDM symbols occupied by the CSI-RS resources within each PRB are the same, and the occupied subcarrier positions can be flexibly configured; correspondingly, the OFDM symbols occupied by the CSI-RS resources within each of the above PRBs are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

[0412] Furthermore, for Solutions 1 - 3:

[0413] When there are more than one CSI-RS resource in (1 slot, 1 PRB), the CSI-RS resources are multiplexed by FDM and / or TDM within (1 slot, 1 PRB); correspondingly, in the case where at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed by frequency division multiplexing FDM and / or time division multiplexing TDM within one time slot and one PRB.

[0414] Optionally, (1) When multiplexing using the FDM method, the OFDM symbols occupied by the K CSI-RS resources are the same.

[0415] (2) When multiplexing using the TDM method, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0416] Wherein, the density ρ of the CSI-RS resources refers to: each port of the CSI-RS resources in each It repeats within one RB (resource block); the corresponding density ρ mentioned above refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resource to the total number of configured PRBs; the total number of PRBs is obtained based on the bandwidth occupied by the CSI-RS resource. When the ρ value is 0.5, the PRB offset value can be configured as {evenPRBs, oddPRBs}, that is, the CSI-RS resource occupies even PRBs or odd PRBs. When the ρ value is 0.25, the PRB offset value can be configured as {0, 1, 2, 3}. The configured value 0 of the PRB offset value indicates that the occupied PRBs satisfy (CRB index mod 4) equal to 0, and the configured value 1 indicates that the occupied PRBs satisfy (CRB index mod 4) equal to 1; others are similar; corresponding to the case where the density ρ value of the CSI-RS resource in the above resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured as 0, 1, 2, or 3; the PRB offset value of 0 means that the CSI-RS resource occupies the PRBs where the common resource block CRB index mod 4 is equal to 0; the PRB offset value of 1 means that the CSI-RS resource occupies the PRBs where the CRB index mod 4 is equal to 1; the PRB offset value of 2 means that the CSI-RS resource occupies the PRBs where the CRB index mod 4 is equal to 2; the PRB offset value of 3 means that the CSI-RS resource occupies the PRBs where the CRB index mod 4 is equal to 3.

[0417] Specifically, the PRB offset value is relative to the common resource block grid.

[0418] Based on the above, (1) for the above Scheme 1 and Scheme 2:

[0419] The density ρ of CSI-RS supports {1, 0.5, 0.25}; the density ρ and the PRB offset value of the K CSI-RS resources are the same; corresponding to the above under Configuration 1 or Configuration 2: the density ρ value of the CSI-RS resource is 1, 0.5, or 0.25, and the density of the K CSI-RS resources is the same and the PRB offset value is the same.

[0420] (2) For the above Scheme 3:

[0421] The density ρ of CSI-RS supports {0.5, 0.25}; the density ρ of the K CSI-RS resources is the same, and the PRB offset value has at least different values; corresponding to the above under Configuration 3: the density ρ value of the CSI-RS resource is 0.5 or 0.25; and the density ρ of the K CSI-RS resources is the same, and at least different values. Specifically, the solution 3 supports at least one of the following solutions:

[0422] Solution 3-1: The density ρ values of the K CSI-RS resources are all 0.5. At least one CSI-RS resource is configured in an even PRB (i.e., the PRB offset value is evenPRBs), and at least one other CSI-RS resource is configured in an odd PRB (i.e., the PRB offset value is oddPRBs); all CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ of this resource is 0.5.

[0423] Solution 3-2: The density ρ values of the K CSI-RS resources are all 0.25. The PRB offset values of at least 4 of the CSI-RS resources are different from each other. For example, each PRB within 4 consecutive PRBs contains at least one CSI-RS resource (corresponding to, for example, the PRB offset values of 4 CSI-RS resources being 0, 1, 2, and 3 respectively). All CSI-RS within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ of this resource is 0.25.

[0424] Part Three. The combination of the value of K and the number of antenna ports of the corresponding CSI-RS resources supports at least one of the following solutions:

[0425] Solution 1. The number of antenna ports of the K CSI-RS resources is the same. The combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following;

[0426] (1) For the case where M×K is 64, the (M, K) = (32, 2), (16, 4), or (8, 8).

[0427] (2) For the case where M×K is 128, the (M, K) = (32, 4), (16, 8), or (8, 16).

[0428] (3) For the case where M×K is 48, the (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6).

[0429] (4) For the case where M×K is 96, the (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8).

[0430] Optionally, the CDM types of the K CSI-RS resources are the same.

[0431] Where M is the number of antenna ports of each CSI-RS resource.

[0432] Solution 2. The number of antenna ports of the K CSI-RSs can be different (corresponding to the case where the number of antenna ports corresponding to at least two of the CSI-RS resources is different); the number K of the K CSI-RS resources and the number of antenna ports M k The combinations include at least one of the following:

[0433] For the case where it is 64, K = 3, and the combination of the K Ms k is (32, 16, 16); or, K = 4, and the combination of the K Ms k is (32, 16, 8, 8);

[0434] For the case where it is 128, K = 5, and the combination of the K Ms k is (32, 32, 32, 16, 16);

[0435] For the case where it is 48, K = 2, and the combination of the K Ms k is (32, 16); or, K = 3, and the combination of the K Ms k is (24, 12, 12);

[0436] For the case where it is 96, K = 4, and the combination of the K Ms k is (32, 32, 16, 16) or (32, 24, 24, 16);

[0437] wherein, M k is the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1,..., K - 1}.

[0438] As described above, in the existing system, only CSI-RS resources with ≤ 32 ports are supported, and the terminal generates a CSI based on the CSI-RS with ≤ 32 ports; in this solution, K > 1 Ms of the CSI-RS resources supported by the existing system are configured k with ≤ 32 ports. The terminal measures all the ports of these K CSI-RSs (equivalent to supporting CSI-RS with > 32 ports), and calculates CSI information such as PMI, Channel Quality Indicator (CQI), and / or rank indication (RI) based on the measurement results of all the ports of these K CSI-RSs, and finally generates a CSI and reports it to the network side. Among them, if all the K CSI-RSs can be normally transmitted, the number of antenna ports corresponding to PMI is otherwise the number of antenna ports corresponding to PMI

[0439] The embodiments of the present application will be specifically illustrated below, taking a network device as a base station as an example.

[0440] Embodiment 1: For the case where the number of antenna ports of K CSI-RS resources is the same ((M, K) = (32, 2)), and TDM is used for multiplexing within (1 slot, 1 PRB) to implement the situation where the number of antenna ports corresponding to the PMI in the CSI reported by the terminal is 64.

[0441] Step 1, the base station sends CSI reporting configuration information and CSI-RS resource configuration information to the terminal.

[0442] Specifically, a CSI reporting configuration information can be configured through high-layer parameters, where (N1, N2) included in CodebookConfig = (8, 4), and the number of antenna ports in the CSI reporting configuration information can be determined accordingly (equal to 2N1N2). The CSI-ResourceConfig for channel measurement associated with the CSI indicates a CSI-RS resource set, and this CSI-RS resource set contains 2 CSI-RS resources (corresponding to: combining 2 32-port CSI-RS resources into 64 antenna ports); corresponding to the above resource configuration information, it includes the configuration information of a CSI-RS resource set, and the CSI-RS resource set contains the K CSI-RS resources. Among them, the number of antenna ports in the CSI reporting configuration information = the total number of antenna ports of the K CSI-RS resources.

[0443] The time domain position indicated by the firstOFDMSymbolInTimeDomain = 4 for one CSI-RS resource (corresponding to k = 0) is configured through the high-layer parameter CSI-RS-ResourceMapping, and the time domain position indicated by the firstOFDMSymbolInTimeDomain = 9 for the other CSI-RS resource (corresponding to k = 1) is configured through the high-layer parameter CSI-RS-ResourceMapping. In the embodiments of the present application, the IDs of the K CSI-RS resources are all different, that is, the values of the corresponding k are different.

[0444] In addition, the other resource mapping information configured for the 2 CSI-RS resources through the high-layer parameter CSI-RS-ResourceMapping is the same, for example:

[0445] The number of ports nrofPorts = 32, the CDM type cdm-Type = cdm8-FD2-TD4, the density density = one, the frequency domain allocation frequencyDomainAllocation = {other 001111}, the CSI-Resource Periodicity And Offset = {slots40, 9}; among them, the frequency domain allocation indicates that the first 4 groups of subcarriers are occupied in the frequency domain, and each group of subcarriers includes 2 subcarriers corresponding to the cdm-Type; the CSI-Resource Periodicity And Offset indicates that the period is 40 time slots and the time slot offset is 9 time slots.

[0446] Specifically, the RE distribution occupied by these 2 CSI-RS resources in (1 slot, 1 PRB) can be as Figure 4 shown (corresponding to: among the K CSI-RS resources, 1 slot is occupied in the time domain and 1 PRB is occupied in the frequency domain, and all ports of all CSI-RS resources can be included in (1 slot, 1 PRB); the 2 CSI-RS resources are multiplexed in (1 slot, 1 PRB) by the TDM method); when repeating transmission, the RE distribution occupied in each PRB among all PRBs occupied by these 2 CSI-RS resources is the same.

[0447] Step 2: The terminal receives the CSI reporting configuration information and the CSI-RS resource configuration information.

[0448] Step 3: The base station sends CSI-RS based on the CSI-RS resource configuration information;

[0449] Specifically, the base station can trigger an aperiodic CSI report through DCI.

[0450] Step 4: The terminal receives the CSI-RS sent on the 2 CSI-RS resources.

[0451] The terminal determines that the condition is met: the configured value 2N1N2 of the number of antenna ports is equal to the total number of antenna ports of the 2 CSI-RS resources. Based on this, the terminal generates a CSI based on the CSI-RS sent on the 2 CSI-RS resources, and the number of antenna ports corresponding to the PMI in this CSI = the total number of antenna ports of the 2 CSI-RS resources (i.e., 64). Subsequently, the generated CSI is reported to the base station.

[0452] Embodiment 2: For the case where the number of antenna ports of K CSI-RS resources is the same ((M, K) = (32, 4)), and TDM is used for multiplexing in (2 slots, 1 PRB) to achieve the situation where the number of antenna ports corresponding to the PMI in the CSI reported by the terminal is 128.

[0453] Step 1: The base station sends CSI reporting configuration information and CSI-RS resource configuration information to the terminal.

[0454] Specifically, a CSI reporting configuration information can be configured through high-layer parameters. Among them, (N1, N2) included in CodebookConfig = (8, 8), and the number of antenna ports in the CSI reporting configuration information can be determined accordingly later. The CSI-ResourceConfig for channel measurement associated with CSI indicates a CSI-RS resource set, and this CSI-RS resource set contains 4 CSI-RS resources (corresponding to: 4 32-port CSI-RS resources combined into a 128-port CSI-RS); corresponding to the above resource configuration information, it includes a configuration information of a CSI-RS resource set, and the CSI-RS resource set contains the K CSI-RS resources. Among them, the aperiodic triggering offset aperiodicTriggeringOffset configured in this CSI-RS resource set = 2.

[0455] Among them, the time-domain position indicated by the firstOFDMSymbolInTimeDomain of the CSI-RS resource with k = 0 is configured through the high-layer parameter CSI-RS-ResourceMapping as 6, the time-domain position indicated by the firstOFDMSymbolInTimeDomain of the CSI-RS resource with k = 1 is configured through the high-layer parameter CSI-RS-ResourceMapping as 10, the time-domain position indicated by the firstOFDMSymbolInTimeDomain of the CSI-RS resource with k = 2 is configured through the high-layer parameter CSI-RS-ResourceMapping as 0, and the time-domain position indicated by the firstOFDMSymbolInTimeDomain of the CSI-RS resource with k = 3 is configured through the high-layer parameter CSI-RS-ResourceMapping as 4.

[0456] In addition, the other resource mapping information of the 4 CSI-RS resources configured through the high-layer parameter CSI-RS-ResourceMapping is the same. For example:

[0457] The number of ports nrofPorts = 32, the CDM type cdm-Type = cdm8-FD2-TD4, the density density = one, and the frequency-domain position indication frequencyDomainAllocation = {other 001111};

[0458] Specifically, the RE distribution occupied by these 4 CSI-RS resources within (2 slots, 1 PRB) can be as Figure 5 shown (corresponding to: the K CSI-RS resources occupy 2 consecutive slots in the time domain and 1 PRB in the frequency domain, and all ports of all CSI-RS resources can be included within (2 slots, 1 PRB); every 2 CSI-RS resources are multiplexed in a TDM manner within (1 slot, 1 PRB)); when in repeated transmission, the RE distribution occupied by these 4 CSI-RS resources in each PRB among all PRBs occupied within the same slot is the same.

[0459] Step 2: The terminal receives CSI reporting configuration information and CSI-RS resource configuration information.

[0460] Step 3: The base station sends DCI in time slot T DCI to trigger an aperiodic CSI report;

[0461] wherein, the base station sends CSI-RS with k = 0 and k = 1 in time slot T DCI + 2 (i.e., the time slot offset by 2 time slots relative to the time slot T DCI where the DCI is triggered), and sends CSI-RS with k = 2 and k = 3 in time slot T DCI + 3.

[0462] Step 4: The terminal receives the CSI-RS sent on the 4 CSI-RS resources.

[0463] The terminal determines that the condition is met: the configured value of the number of antenna ports 2N1N2 is equal to the total number of antenna ports of the 4 CSI-RS resources. Based on this, the terminal generates a CSI based on the CSI-RS sent on the 4 CSI-RS resources, and the number of antenna ports corresponding to the PMI in this CSI = the total number of antenna ports of the 4 CSI-RS resources (i.e., 128). Subsequently, the generated CSI is reported to the base station.

[0464] Embodiment 3: For the case where the number of antenna ports of the K CSI-RS resources is the same ((M, K) = (32, 4)), and FDM is used for multiplexing within (1 slot, 2 PRB) to achieve the situation where the number of antenna ports corresponding to the PMI in the CSI reported by the terminal is 128.

[0465] Step 1: The base station sends CSI reporting configuration information and CSI-RS resource configuration information to the terminal.

[0466] Specifically, a reporting configuration information of a CSI can be configured through high-level parameters, where (N1, N2) included in CodebookConfig is (8, 8), and the number of antenna ports in the CSI reporting configuration information can be determined accordingly later. The CSI-ResourceConfig associated with the CSI for channel measurement indicates a CSI-RS resource set, and this CSI-RS resource set contains 4 CSI-RS resources (corresponding to: 4 32-port CSI-RS resources combined into a 128-port CSI-RS); corresponding to the above resource configuration information, it includes a configuration information of a CSI-RS resource set, and the CSI-RS resource set contains the K CSI-RS resources.

[0467] For the CSI-RS resource with k = 0, the time-domain position indicated by the high-layer parameter CSI-RS-ResourceMapping is firstOFDMSymbolInTimeDomain = 4, the frequency-domain position indicated is frequencyDomainAllocation = {other 111100}, and the density density = {dot5 evenPRBs}; for the CSI-RS resource with k = 2, the time-domain position indicated by the high-layer parameter CSI-RS-ResourceMapping is firstOFDMSymbolInTimeDomain = 9, the frequency-domain position indicated is frequencyDomainAllocation = {other 111100}, and the density density = {dot5 evenPRBs}; for the CSI-RS resource with k = 1, the time-domain position indicated by the high-layer parameter CSI-RS-ResourceMapping is firstOFDMSymbolInTimeDomain = 4, the frequency-domain position indicated is frequencyDomainAllocation = {other001111}, and the density density = {dot5 oddPRBs}; for the CSI-RS resource with k = 3, the time-domain position indicated by the high-layer parameter CSI-RS-ResourceMapping is firstOFDMSymbolInTimeDomain = 9, the frequency-domain position indicated is frequencyDomainAllocation = {other 001111}, and the density density = {dot5 oddPRBs}. Herein, density = {dot5 evenPRBs} means the density = 0.5 and the CSI-RS resource occupies even PRBs; density = {dot5oddPRBs} means the density = 0.5 and the CSI-RS resource occupies odd PRBs; wherein, the PRB is numbered based on CRB0.

[0468] In addition, the other resource mapping information of the 4 CSI-RS resources configured by the high-layer parameter CSI-RS-ResourceMapping is the same. For example:

[0469] The number of ports nrofPorts = 32, the CDM type cdm-Type = cdm8-FD2-TD4, and the CSI-ResourcePeriodicityAndOffset of the period and time-slot offset = {slots40, 9}.

[0470] Specifically, the RE distribution occupied by these 4 CSI-RS resources within (1 slot, 2 PRB) can be asFigure 6 As shown (corresponding to: the K CSI-RS resources occupy 1 slot in the time domain and 2 consecutive PRBs in the frequency domain, and all ports of all CSI-RS resources can be included within (1 slot, 2 PRBs); every two CSI-RS resources are multiplexed in a TDM manner within (1 slot, 1 PRB)); when repeating transmission, the distribution of REs occupied within each group of PRBs (including 2 consecutive PRBs) among all PRBs occupied by these 4 CSI-RS resources is the same.

[0471] Step 2: The terminal receives CSI reporting configuration information and CSI-RS resource configuration information.

[0472] Step 3: The base station sends CSI-RS;

[0473] The base station triggers an aperiodic CSI report through DCI.

[0474] Step 4: The terminal receives the CSI-RS sent on the 4 CSI-RS resources.

[0475] The terminal determines that the condition is met: the configured value of the number of antenna ports 2N1N2 is equal to the total number of antenna ports of the 4 CSI-RS resources. Based on this, the terminal generates a CSI based on the CSI-RS sent on the 4 CSI-RS resources, and the number of antenna ports corresponding to the PMI in this CSI = the total number of antenna ports of the 4 CSI-RS resources (i.e., 128). Subsequently, the generated CSI is reported to the base station.

[0476] Embodiment 4: For the case where the number of antenna ports of K CSI-RS resources is the same ((M, K) = (32, 4)), and FDM is used for multiplexing within (1 slot, 4 PRBs) to achieve the situation where the number of antenna ports corresponding to the PMI in the CSI reported by the terminal is 128.

[0477] Step 1: The base station sends CSI reporting configuration information and CSI-RS resource configuration information to the terminal.

[0478] Specifically, a reporting configuration information of a CSI can be configured through high-layer parameters. Among them, (N1, N2) included in CodebookConfig is (8, 8), and the number of antenna ports in the CSI reporting configuration information can be determined accordingly later. CSI-ResourceConfig for channel measurement associated with the CSI indicates a CSI-RS resource set, and this CSI-RS resource set contains 4 CSI-RS resources (corresponding to: 4 32-port CSI-RS resources are combined into a 128-port CSI-RS); corresponding to the above resource configuration information, it includes a configuration information of a CSI-RS resource set, and the CSI-RS resource set contains the K CSI-RS resources.

[0479] Among them, the frequency domain position indicated by the high-layer parameter CSI-RS-ResourceMapping for the k = 0 CSI-RS resource is frequencyDomainAllocation = {other 111100}, and the density density = {dot25 0}; the frequency domain position indicated by the high-layer parameter CSI-RS-ResourceMapping for the k = 1 CSI-RS resource is frequencyDomainAllocation = {other 001111}, and the density density = {dot25 1}; the frequency domain position indicated by the high-layer parameter CSI-RS-ResourceMapping for the k = 2 CSI-RS resource is frequencyDomainAllocation = {other 111100}, and the density density = {dot25 2}; the frequency domain position indicated by the high-layer parameter CSI-RS-ResourceMapping for the k = 3 CSI-RS resource is frequencyDomainAllocation = {other 001111}, and the density density = {dot25 3}. Among them, density = {dot25 0} means the density = 0.25, and the PRB with the CRB index mod4 being 0 occupied by the CSI-RS resource; the others are similar; among them, the PRB is numbered based on CRB0.

[0480] In addition, the other resource mapping information configured for the 4 CSI-RS resources through the high-layer parameter CSI-RS-ResourceMapping is the same. For example:

[0481] Number of ports nrofPorts = 32, CDM type cdm-Type = cdm8-FD2-TD4, first OFDM symbol in time domain firstOFDMSymbolInTimeDomain = 4, CSI-Resource Periodicity And Offset CSI-ResourcePeriodicityAndOffset = {slots40, 9}.

[0482] Specifically, the RE distribution occupied by these 4 CSI-RS resources within (1 slot, 4 PRBs) can be as Figure 7 shown (corresponding to: the K CSI-RS resources occupy 1 slot in the time domain and 4 consecutive PRBs in the frequency domain, and all ports of all CSI-RS resources can be included within (1 slot, 4 PRBs)); when repeating transmissions, the RE distribution within each group of PRBs (including 4 consecutive PRBs) among all PRBs occupied by these 4 CSI-RS resources is the same.

[0483] Step 2: The terminal receives CSI reporting configuration information and CSI-RS resource configuration information.

[0484] Step 3: The base station transmits CSI-RS;

[0485] The base station triggers an aperiodic CSI report through DCI.

[0486] Step 4: The terminal receives the CSI-RS transmitted on the 4 CSI-RS resources.

[0487] The terminal determines that the condition is met: the configured value of the number of antenna ports 2N1N2 is equal to the total number of antenna ports of the 4 CSI-RS resources. Based on this, the terminal generates a CSI based on the CSI-RS transmitted on the 4 CSI-RS resources, and the number of antenna ports corresponding to the PMI in this CSI = the total number of antenna ports of the 4 CSI-RS resources (i.e., 128). Subsequently, the generated CSI is reported to the base station.

[0488] Embodiment 5: For the case where the number of antenna ports of K CSI-RS resources is the same ((M, K) = (24, 2)), and FDM is used for multiplexing within (1 slot, 1 PRB) to achieve the situation where the number of antenna ports corresponding to the PMI in the CSI reported by the terminal is 48.

[0489] Step 1: The base station sends CSI reporting configuration information and CSI-RS resource configuration information to the terminal.

[0490] Specifically, a reporting configuration information of a CSI can be configured through high-layer parameters. Among them, (N1, N2) included in CodebookConfig is (6, 4), and the number of antenna ports in the CSI reporting configuration information can be determined accordingly later. CSI-ResourceConfig for channel measurement associated with the CSI indicates a CSI-RS resource set, and this CSI-RS resource set contains 2 CSI-RS resources (corresponding to: 2 24-port CSI-RS resources combined into a 48-port CSI-RS); corresponding to the above resource configuration information, it includes a configuration information of a CSI-RS resource set, and the CSI-RS resource set contains the K CSI-RS resources.

[0491] The frequency domain location indicated by frequencyDomainAllocation of one CSI-RS resource (corresponding to k = 0) is configured through the high-layer parameter CSI-RS-ResourceMapping as {other 000111}, and the frequency domain location indicated by frequencyDomainAllocation of the other CSI-RS resource (corresponding to k = 1) is configured through the high-layer parameter CSI-RS-ResourceMapping as {other 111000}.

[0492] In addition, the other resource mapping information of the 2 CSI-RS resources configured through the high-layer parameter CSI-RS-ResourceMapping is the same. For example:

[0493] The number of ports nrofPorts = 24, the CDM type cdm-Type = cdm8-FD2-TD4, the density density = one, the time domain location indicates firstOFDMSymbolInTimeDomain = 4, and the CSI-ResourcePeriodicityAndOffset of the period and time slot offset = {slots40, 9};

[0494] Specifically, the RE distribution occupied by these 2 CSI-RS resources within (1 slot, 1 PRB) can be as Figure 8 shown (corresponding to: the K CSI-RS resources occupy 1 slot in the time domain and 1 PRB in the frequency domain, and all ports of all CSI-RS resources can be included within (1 slot, 1 PRB); the 2 CSI-RS resources are multiplexed by the FDM method within (1 slot, 1 PRB)), and the RE distribution occupied in each PRB of all PRBs occupied by these 2 CSI-RS resources during repeated transmission is the same.

[0495] Step 2: The terminal receives CSI reporting configuration information and CSI-RS resource configuration information.

[0496] Step 3: The base station sends CSI-RS based on the CSI-RS resource configuration information;

[0497] Specifically, the base station can trigger an aperiodic CSI report through DCI.

[0498] Step 4: The terminal receives the CSI-RS sent on the two CSI-RS resources.

[0499] The terminal determines that the condition is met: the configured value of the number of antenna ports 2N1N2 is equal to the total number of antenna ports of the two CSI-RS resources. Based on this, the terminal generates a CSI based on the CSI-RS sent on the two CSI-RS resources, and the number of antenna ports corresponding to the PMI in this CSI = the total number of antenna ports of the two CSI-RS resources (i.e., 48). Subsequently, the generated CSI is reported to the base station.

[0500] Embodiment 6: For the case where the number of antenna ports of K CSI-RS resources is the same ((M, K) = (32, 4)), and TDM is used for multiplexing within (1 slot, 2 PRB) to achieve the situation where the number of antenna ports corresponding to the PMI in the CSI reported by the terminal is 64 or no CSI is reported.

[0501] Step 1: The base station sends CSI reporting configuration information and CSI-RS resource configuration information to the terminal.

[0502] Specifically, the reporting configuration information of a CSI can be configured through the high-layer parameter CSI-ReportConfig, where (N1, N2) included in CodebookConfig = (8, 8). Subsequently, the number of antenna ports in the CSI reporting configuration information can be determined accordingly. The CSI-ResourceConfig associated with the CSI for channel measurement indicates a CSI-RS resource set, and this CSI-RS resource set contains 4 CSI-RS resources (corresponding to: 4 32-port CSI-RS resources combined into a 128-port CSI-RS); corresponding to the above resource configuration information, it includes the configuration information of a CSI-RS resource set, and the CSI-RS resource set contains the K CSI-RS resources.

[0503] The time domain position of the CSI-RS resource with k = 0 is indicated by firstOFDMSymbolInTimeDomain = 6 configured by the higher layer parameter CSI-RS-ResourceMapping. The time domain position of the CSI-RS resource with k = 1 is indicated by firstOFDMSymbolInTimeDomain = 10 configured by the higher layer parameter CSI-RS-ResourceMapping. The time domain position of the CSI-RS resource with k = 2 is indicated by firstOFDMSymbolInTimeDomain = 0 configured by the higher layer parameter CSI-RS-ResourceMapping. The time domain position of the CSI-RS resource with k = 3 is indicated by firstOFDMSymbolInTimeDomain = 4 configured by the higher layer parameter CSI-RS-ResourceMapping.

[0504] In addition, the other resource mapping information of the 4 CSI-RS resources configured by the higher layer parameter CSI-RS-ResourceMapping is the same. For example:

[0505] The number of ports nrofPorts = 32, the CDM type cdm-Type = cdm8-FD2-TD4, the density density = one, the frequency domain position indication frequencyDomainAllocation = {other 001111}, the CSI-ResourcePeriodicityAndOffset of the period and time slot offset = {slots40, 9};

[0506] Specifically, the RE distribution occupied by these 4 CSI-RS resources in (2 slots, 1 PRB) is as follows Figure 9 As shown (corresponding to: the K CSI-RS resources occupy 2 consecutive slots in the time domain and 1 PRB in the frequency domain, and all ports of all CSI-RS resources can be included in (2 slots, 1 PRB); every 2 CSI-RS resources are multiplexed in (1 slot, 1 PRB) by the TDM method); when repeating the transmission, the RE distribution occupied by these 4 CSI-RS resources in each PRB among all PRBs occupied in the same slot is the same.

[0507] Step 2, the terminal receives the CSI reporting configuration information and the CSI-RS resource configuration information.

[0508] Step 3: The base station sends CSI-RS based on the CSI-RS resource configuration information. If the configured CSI-RS resources conflict with other signals (such as the synchronization signal block SSB) in some OFDM symbols, the base station may not send CSI-RS on these OFDM symbols.

[0509] Specifically, the base station can trigger an aperiodic CSI report through DCI.

[0510] Step 4: The terminal receives the CSI-RS sent on the 4 CSI-RS resources.

[0511] The terminal determines that the condition is met: the configured value of the number of antenna ports 2N1N2 is equal to the total number of antenna ports of the 4 CSI-RS resources, but only 2 CSI-RS are successfully detected, which is less than the number of CSI-RS resources associated with the CSI (i.e., 4). Based on this, the terminal can perform any of the following actions:

[0512] (1) The terminal generates a CSI based on the detected 2 CSI-RS, and the number of antenna ports corresponding to the PMI in the CSI = the total number of antenna ports of the 2 CSI-RS resources (i.e., 64). Subsequently, the generated CSI is reported to the base station.

[0513] (2) The terminal does not report CSI in the CSI reporting time slot triggered by the above DCI.

[0514] It should be noted here that the relevant contents of the above embodiments can be referred to each other, and the repeated parts will not be elaborated.

[0515] In summary, the embodiments of the present application can obtain CSI-RS resources with more than 32 ports from the existing CSI-RS resource combinations without re-designing the CSI-RS pattern, so as to support the combined measurement and reporting of a CSI, thereby meeting the requirements for supporting CSI-RS resources and CSI with more than 32 ports, and at the same time being compatible with CSI reporting with ≤ 32 ports.

[0516] The embodiments of the present application also provide an information transmission device, and the information transmission device is a network device, such as Figure 10 as shown, including a memory 101, a transceiver 102, and a processor 103:

[0517] The memory 101 is used to store computer programs; the transceiver 102 is used to transmit and receive data under the control of the processor 103; the processor 103 is used to read the computer programs in the memory 101 and perform the following operations:

[0518] Determine the channel state information CSI reporting configuration information and the resource configuration information of K channel state information reference signals CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1;

[0519] Through the transceiver 102, send the CSI reporting configuration information and the resource configuration information to the terminal; and send CSI-RS according to the resource configuration information;

[0520] Through the transceiver 102, receive the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information.

[0521] The information transmission device provided in the embodiment of the present application determines the channel state information CSI reporting configuration information and the resource configuration information of K channel state information reference signals CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; sends the CSI reporting configuration information and the resource configuration information to the terminal; and sends CSI-RS according to the resource configuration information; receives the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information; can support multiple CSI-RS resources to be associated with one reporting configuration by configuring the number of antenna ports in the reporting configuration information to be equal to the total number of antenna ports of the K CSI-RS resources, so that the subsequent terminal generates one CSI for the multiple CSI-RS resources, and further realizes the joint measurement and reporting for multiple CSI resources.

[0522] Specifically, the transceiver 102 is used to receive and send data under the control of the processor 103.

[0523] Among them, in Figure 10 , the bus architecture may include any number of interconnected buses and bridges, specifically, various circuits of one or more processors represented by the processor 103 and the memory represented by the memory 101 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 102 may be multiple elements, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables, etc. The processor 103 is responsible for managing the bus architecture and general processing, and the memory 101 may store the data used by the processor 103 when performing operations.

[0524] The processor 103 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD). The processor may also adopt a multi-core architecture.

[0525] Among them, the number of antenna ports corresponding to the precoding matrix indicator PMI in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

[0526] In the embodiments of the present application, the resource configuration information includes at least one of the following: (1) configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources; (2) configuration information of K CSI-RS resource sets, and one CSI-RS resource set includes one CSI-RS resource.

[0527] Among them, when the resource configuration information includes configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information DCI is located; where the DCI refers to the DCI that triggers the CSI.

[0528] In the embodiments of the present application, the K CSI-RS resources occupy the same bandwidth; and / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

[0529] Among them, the resource configuration information indicates that the K CSI-RS resources are repeatedly transmitted according to the resource element (RE) distribution occupied by the K CSI-RS resources in the smallest unit; where the smallest unit is configured with at least one of the following: Configuration 1: including one time slot in the time domain and one physical resource block (PRB) in the frequency domain; Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain; Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain.

[0530] In the embodiments of the present application, under the configuration 2: (1) the number of CSI-RS resources included in each time slot is the same; and / or, (2) the OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

[0531] Among them, under the configuration 3: (1) the number of CSI-RS resources included in each PRB is the same; and / or, (2) the OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

[0532] In the embodiments of the present application, when at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed by frequency division multiplexing (FDM) and / or time division multiplexing (TDM) in one time slot and one PRB.

[0533] Among them, when using the FDM method for multiplexing, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when using the TDM method for multiplexing, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0534] In the embodiments of the present application, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured to be 0, 1, 2, or 3; where the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained according to the bandwidth occupied by the CSI-RS resources; the PRB offset value of 0 means that the CSI-RS resources occupy the PRBs where the common resource block (CRB) index mod 4 is equal to 0; the PRB offset value of 1 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 1; the PRB offset value of 2 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 2; the PRB offset value of 3 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 3.

[0535] Wherein, under the configuration 1 or configuration 2: the value of the density ρ of the CSI-RS resources is 1, 0.5 or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same; and / or, under the configuration 3: the value of the density ρ of the CSI-RS resources is 0.5 or 0.25; and the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different.

[0536] In the embodiments of the present application, the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following: (1) the value of the density ρ of the K CSI-RS resources is 0.5, at least one of the CSI-RS resources is configured in an even PRB, and at least one other CSI-RS resource is configured in an odd PRB; all CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the value of the density ρ of the combined CSI-RS resource is 0.5; (2) the value of the density ρ of the K CSI-RS resources is 0.25, and the PRB offset values of at least 4 of the CSI-RS resources are different from each other; all CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the value of the density ρ of the combined CSI-RS resource is 0.25.

[0537] Wherein, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following: for the case where M×K is 64, the (M, K) = (32, 2), (16, 4) or (8, 8); for the case where M×K is 128, the (M, K) = (32, 4), (16, 8) or (8, 16); for the case where M×K is 48, the (M, K) = (24, 2), (16, 3), (12, 4) or (8, 6); for the case where M×K is 96, the (M, K) = (32, 3), (24, 4), (16, 6) or (12, 8).

[0538] In the embodiments of the present application, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number of antenna ports M k includes at least one of the following: (1) for the case where it is 64, K = 3, and K Ms kThe combination is (32, 16, 16); or, K = 4, and the K M's k The combination is (32, 16, 8, 8); (2) For the case where is 128, K = 5, and the K M's k The combination is (32, 32, 32, 16, 16); (3) For the case where is 48, K = 2, and the K M's k The combination is (32, 16); or, K = 3, and the K M's k The combination is (24, 12, 12); (4) For the case where is 96, K = 4, and the K M's k The combination is (32, 32, 16, 16) or (32, 24, 24, 16); where M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1, …, K−1}.

[0539] It should be noted here that the above device provided in the embodiments of the present application can implement all the method steps implemented by the above method embodiments on the network device side, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment again.

[0540] The embodiments of the present application also provide an information transmission device, and the information transmission device is a terminal, such as Figure 11 shown, including a memory 111, a transceiver 112, and a processor 113:

[0541] The memory 111 is used to store computer programs; the transceiver 112 is used to transmit and receive data under the control of the processor 113; the processor 113 is used to read the computer programs in the memory 111 and perform the following operations:

[0542] Through the transceiver 112, receive the CSI reporting configuration information sent by the network device, and the resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1;

[0543] According to the resource configuration information, receive the CSI-RS sent by the network device through the transceiver 112;

[0544] Generate a CSI according to the received CSI-RS and the CSI reporting configuration information;

[0545] Report the CSI to the network device through the transceiver 112.

[0546] The information transmission device provided by the embodiment of the present application receives CSI reporting configuration information sent by a network device and resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; according to the resource configuration information, it receives the CSI-RS sent by the network device; generates a CSI according to the received CSI-RS and the CSI reporting configuration information; and reports the CSI to the network device; it can support multiple CSI-RS resources to be associated with one reporting configuration by configuring the number of antenna ports in the reporting configuration information to be equal to the total number of antenna ports of the K CSI-RS resources, so that the subsequent terminal generates one CSI for the multiple CSI-RS resources, and further realizes joint measurement and reporting for multiple CSI resources.

[0547] Specifically, the transceiver 112 is used to receive and send data under the control of the processor 113.

[0548] Among them, in Figure 11 , the bus architecture may include any number of interconnected buses and bridges, specifically, various circuits of one or more processors represented by the processor 113 and the memory represented by the memory 111 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 112 may be multiple elements, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables, etc. For different user devices, the user interface 114 may also be an interface capable of externally connecting and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0549] The processor 113 is responsible for managing the bus architecture and general processing, and the memory 111 may store data used by the processor 113 when performing operations.

[0550] Optionally, the processor 113 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD). The processor may also adopt a multi-core architecture.

[0551] The processor is used to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and the memory may also be physically separated.

[0552] Among them, the number of antenna ports corresponding to the PMI in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

[0553] In the embodiments of the present application, the resource configuration information includes at least one of the following: (1) the configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources; (2) the configuration information of K CSI-RS resource sets, and one CSI-RS resource set includes one CSI-RS resource.

[0554] Among them, when the resource configuration information includes the configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information DCI is located; where the DCI refers to the DCI that triggers the CSI.

[0555] In the embodiments of the present application, the K CSI-RS resources occupy the same bandwidth; and / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

[0556] Among them, the resource allocation information indicates that the K CSI-RS resources are repeatedly transmitted according to the resource element (RE) distribution occupied by the K CSI-RS resources in the smallest unit; wherein, the smallest unit is configured with at least one of the following: Configuration 1: including one time slot in the time domain and one physical resource block (PRB) in the frequency domain; Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain; Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain.

[0557] In the embodiments of the present application, under the Configuration 2: (1) the number of CSI-RS resources included in each time slot is the same; and / or, (2) the orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

[0558] Among them, under the Configuration 3: (1) the number of CSI-RS resources included in each PRB is the same; and / or, (2) the OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

[0559] In the embodiments of the present application, when at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are resource multiplexed by frequency division multiplexing (FDM) and / or time division multiplexing (TDM) in one time slot and one PRB.

[0560] Among them, when multiplexing by the FDM method, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when multiplexing by the TDM method, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0561] In the embodiment of the present application, when the value of the density ρ of the CSI-RS resource in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured to 0, 1, 2, or 3; where the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resource to the total number of configured PRBs; the total number of PRBs is obtained according to the bandwidth occupied by the CSI-RS resource; the PRB offset value of 0 means that the CSI-RS resource occupies the PRBs where the common resource block CRB index mod 4 is equal to 0; the PRB offset value of 1 means that the CSI-RS resource occupies the PRBs where the CRB index mod 4 is equal to 1; the PRB offset value of 2 means that the CSI-RS resource occupies the PRBs where the CRB index mod 4 is equal to 2; the PRB offset value of 3 means that the CSI-RS resource occupies the PRBs where the CRB index mod 4 is equal to 3.

[0562] Among them, in Configuration 1 or Configuration 2: the value of the density ρ of the CSI-RS resource is 1, 0.5, or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same; and / or, in Configuration 3: the value of the density ρ of the CSI-RS resource is 0.5 or 0.25; and the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different.

[0563] In the embodiment of the present application, the densities ρ of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following: (1) the value of the density ρ of each of the K CSI-RS resources is 0.5, at least one of the CSI-RS resources is configured in even-numbered PRBs, and at least one other CSI-RS resource is configured in odd-numbered PRBs; all CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the value of the density ρ of the combined CSI-RS resource is 0.5; (2) the value of the density ρ of each of the K CSI-RS resources is 0.25, and the PRB offset values of at least 4 of the CSI-RS resources are different from each other; all CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the value of the density ρ of the combined CSI-RS resource is 0.25.

[0564] Among them, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following: for the case where M×K is 64, the (M, K) = (32, 2), (16, 4), or (8, 8); for the case where M×K is 128, the (M, K) = (32, 4), (16, 8), or (8, 16); for the case where M×K is 48, the (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6); for the case where M×K is 96, the (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8).

[0565] In the embodiments of the present application, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number of antenna ports M k includes at least one of the following: (1) for the case where is 64, K = 3, and the combination of K M's k is (32, 16, 16); or, K = 4, and the combination of K M's k is (32, 16, 8, 8); (2) for the case where is 128, K = 5, and the combination of K M's k is (32, 32, 32, 16, 16); (3) for the case where is 48, K = 2, and the combination of K M's k is (32, 16); or, K = 3, and the combination of K M's k is (24, 12, 12); (4) for the case where is 96, K = 4, and the combination of K M's k is (32, 32, 16, 16) or (32, 24, 24, 16); where M k represents the number of antenna ports of the kth CSI-RS resource; k ∈ {0, 1,..., K - 1}.

[0566] It should be noted here that the above device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments on the terminal side, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment again.

[0567] The embodiments of the present application also provide an information transmission device, which is applied to a network device, as Figure 12 shown, and includes:

[0568] A first determination unit 121, configured to determine channel state information (CSI) reporting configuration information and resource configuration information of K channel state information reference signals (CSI-RS) resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1;

[0569] A first transmission unit 122, configured to send the CSI reporting configuration information and the resource configuration information to a terminal; and send CSI-RS according to the resource configuration information;

[0570] A first reception unit 123, configured to receive the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information.

[0571] The information transmission device provided in the embodiment of the present application determines channel state information (CSI) reporting configuration information and resource configuration information of K channel state information reference signals (CSI-RS) resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; sends the CSI reporting configuration information and the resource configuration information to a terminal; sends CSI-RS according to the resource configuration information; and receives the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information; and can support multiple CSI-RS resources to be associated with one reporting configuration by configuring the number of antenna ports in the reporting configuration information to be equal to the total number of antenna ports of the K CSI-RS resources, so that the terminal subsequently generates one CSI for the multiple CSI-RS resources, thereby realizing joint measurement and reporting for multiple CSI resources.

[0572] Wherein, the number of antenna ports corresponding to the precoding matrix indicator (PMI) in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

[0573] In the embodiment of the present application, the resource configuration information includes at least one of the following: (1) configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources; (2) configuration information of K CSI-RS resource sets, and one CSI-RS resource set includes one CSI-RS resource.

[0574] Wherein, when the resource configuration information includes the configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot among the at least two consecutive time slots and the time slot where the downlink control information DCI is located; wherein, the DCI refers to the DCI that triggers the CSI.

[0575] In the embodiments of the present application, the K CSI-RS resources occupy the same bandwidth; and / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

[0576] Wherein, the resource configuration information indicates that the K CSI-RS resources are repetitively transmitted according to the resource element RE distribution occupied by the K CSI-RS resources in the minimum unit; wherein, the minimum unit is configured with at least one of the following: Configuration 1: including one time slot in the time domain and one PRB in the frequency domain; Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain; Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain.

[0577] In the embodiments of the present application, under Configuration 2: (1) the number of CSI-RS resources included in each time slot is the same; and / or, (2) the OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

[0578] Wherein, under Configuration 3: (1) the number of CSI-RS resources included in each PRB is the same; and / or, (2) the OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

[0579] In an embodiment of the present application, when at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed within one time slot and one PRB by means of frequency division multiplexing (FDM) and / or time division multiplexing (TDM).

[0580] Among them, when multiplexing using the FDM method, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when multiplexing using the TDM method, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0581] In an embodiment of the present application, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured as 0, 1, 2, or 3; where the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained based on the bandwidth occupied by the CSI-RS resources; the PRB offset value of 0 means that the CSI-RS resources occupy the PRBs where the common resource block (CRB) index mod 4 is equal to 0; the PRB offset value of 1 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 1; the PRB offset value of 2 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 2; the PRB offset value of 3 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 3.

[0582] Among them, under Configuration 1 or Configuration 2: the value of the density ρ of the CSI-RS resources is 1, 0.5, or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same; and / or, under Configuration 3: the value of the density ρ of the CSI-RS resources is 0.5 or 0.25; and the densities of the K CSI-RS resources are the same, and at least of the PRB offset values of the K CSI-RS resources are different.

[0583] In an embodiment of the present application, the densities ρ of the K CSI-RS resources are the same, and at least different values, including at least one of the following: (1) the density ρ of the K CSI-RS resources is 0.5, at least one of the CSI-RS resources is configured in an even PRB, and at least one other CSI-RS resource is configured in an odd PRB; all CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ of the combined CSI-RS resource is 0.5; (2) the density ρ of the K CSI-RS resources is 0.25, and the PRB offset values of at least 4 of the CSI-RS resources are different from each other; all CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ of the combined CSI-RS resource is 0.25.

[0584] Among them, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following: for the case where M×K is 64, the (M, K) = (32, 2), (16, 4), or (8, 8); for the case where M×K is 128, the (M, K) = (32, 4), (16, 8), or (8, 16); for the case where M×K is 48, the (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6); for the case where M×K is 96, the (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8).

[0585] In the embodiments of the present application, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number of antenna ports M k includes at least one of the following: (1) for the case where it is 64, K = 3, and the combination of K Ms k is (32, 16, 16); or, K = 4, and the combination of K Ms k is (32, 16, 8, 8); (2) for the case where it is 128, K = 5, and the combination of K Ms k is (32, 32, 32, 16, 16); (3) for the case where it is 48, K = 2, and the combination of K Ms k is (32, 16); or, K = 3, and the combination of K Ms k is (24, 12, 12); (4) for the case where it is 96, K = 4, and the combination of K Ms kThe combination is (32, 32, 16, 16) or (32, 24, 24, 16); where M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1, …, K-1}.

[0586] It should be noted here that the above device provided in the embodiments of the present application can implement all the method steps implemented in the above method embodiments on the network device side, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0587] The embodiments of the present application also provide an information transmission device, which is applied to a terminal, as Figure 13 shown, and includes:

[0588] A second receiving unit 131, configured to receive CSI reporting configuration information sent by a network device, and resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; the K is an integer greater than 1;

[0589] A third receiving unit 132, configured to receive the CSI-RS sent by the network device according to the resource configuration information;

[0590] A first generating unit 133, configured to generate a CSI according to the received CSI-RS and the CSI reporting configuration information;

[0591] A first reporting unit 134, configured to report the CSI to the network device.

[0592] The information transmission device provided in the embodiments of the present application receives CSI reporting configuration information sent by a network device, and resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; the K is an integer greater than 1; receives the CSI-RS sent by the network device according to the resource configuration information; generates a CSI according to the received CSI-RS and the CSI reporting configuration information; reports the CSI to the network device; and can support the association of multiple CSI-RS resources with one reporting configuration by configuring the number of antenna ports in the reporting configuration information to be equal to the total number of antenna ports of the K CSI-RS resources, so that the subsequent terminal generates a CSI for the multiple CSI-RS resources, thereby realizing joint measurement and reporting for multiple CSI resources.

[0593] Among them, the number of antenna ports corresponding to the PMI in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

[0594] In the embodiments of the present application, the resource configuration information includes at least one of the following: (1) the configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources; (2) the configuration information of K CSI-RS resource sets, and one CSI-RS resource set includes one CSI-RS resource.

[0595] Among them, when the resource configuration information includes the configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information DCI is located; where the DCI refers to the DCI that triggers the CSI.

[0596] In the embodiments of the present application, the K CSI-RS resources occupy the same bandwidth; and / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

[0597] Among them, the resource configuration information indicates that the K CSI-RS resources are repeatedly transmitted according to the resource element RE distribution occupied by the K CSI-RS resources in the minimum unit; where the minimum unit is configured with at least one of the following: Configuration 1: including one time slot in the time domain and one PRB in the frequency domain; Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain; Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain.

[0598] In the embodiments of the present application, under Configuration 2: (1) the number of CSI-RS resources included in each time slot is the same; and / or, (2) the orthogonal frequency division multiplexing OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

[0599] Among them, under the configuration 3: (1) The number of CSI-RS resources included in each PRB is the same; and / or, (2) The OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

[0600] In an embodiment of the present application, when at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed by frequency division multiplexing (FDM) and / or time division multiplexing (TDM) in one time slot and one PRB.

[0601] Among them, when using the FDM method for multiplexing, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when using the TDM method for multiplexing, the subcarrier positions occupied by the K CSI-RS resources are the same.

[0602] In an embodiment of the present application, when the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured to be 0, 1, 2, or 3; where the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained based on the bandwidth occupied by the CSI-RS resources; the PRB offset value of 0 means that the CSI-RS resources occupy the PRBs where the common resource block (CRB) index mod 4 is equal to 0; the PRB offset value of 1 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 1; the PRB offset value of 2 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 2; the PRB offset value of 3 means that the CSI-RS resources occupy the PRBs where the CRB index mod 4 is equal to 3.

[0603] Among them, under the configuration 1 or configuration 2: the value of the density ρ of the CSI-RS resources is 1, 0.5, or 0.25, and the density of the K CSI-RS resources is the same and the PRB offset values are the same; and / or, under the configuration 3: the value of the density ρ of the CSI-RS resources is 0.5 or 0.25; and the density ρ of the K CSI-RS resources is the same, and at least of the PRB offset values of the K CSI-RS resources are different.

[0604] In the embodiments of the present application, the density ρ of the K CSI-RS resources is the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following: (1) The value of the density ρ of the K CSI-RS resources is 0.5, at least one of the CSI-RS resources is configured in an even PRB, and at least one other CSI-RS resource is configured in an odd PRB; All CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the value of the density ρ of the combined CSI-RS resource is 0.5; (2) The value of the density ρ of the K CSI-RS resources is 0.25, and the PRB offset values of at least 4 of the CSI-RS resources are different from each other; All CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the value of the density ρ of the combined CSI-RS resource is 0.25.

[0605] Among them, when the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following: For the case where M×K is 64, the (M, K) = (32, 2), (16, 4), or (8, 8); For the case where M×K is 128, the (M, K) = (32, 4), (16, 8), or (8, 16); For the case where M×K is 48, the (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6); For the case where M×K is 96, the (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8).

[0606] In the embodiments of the present application, when the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number of antenna ports M k includes at least one of the following: (1) For the case where is 64, K = 3, and the combination of K Ms k is (32, 16, 16); or, K = 4, and the combination of K Ms k is (32, 16, 8, 8); (2) For the case where is 128, K = 5, and the combination of K Ms k is (32, 32, 32, 16, 16); (3) For the case where is 48, K = 2, and the combination of K Ms k is (32, 16); or, K = 3, and the combination of K Ms k is (24, 12, 12); (4) For the case where When it is 96, K = 4, and the combination of K Ms k is (32, 32, 16, 16) or (32, 24, 24, 16); where M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1, …, K - 1}.

[0607] It should be noted here that the above device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments on the terminal side, and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0608] It should be noted that the division of units in the embodiments of the present application is illustrative, only a logical function division, and there may be other division methods in actual implementation. In addition, in each embodiment of the present application, the functional units can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0609] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, etc., which can store program codes.

[0610] The embodiments of the present application also provide a non-transitory readable storage medium, which stores a computer program for causing a processor to execute the above methods on the network device side or the terminal side.

[0611] The non-transitory readable storage medium may be any available medium or data storage device accessible by the processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical discs (MO), etc.), optical memories (such as compact discs (CD), digital video discs (DVD), Blu-ray discs (BD), high-definition versatile discs (HVD), etc.), and semiconductor memories (such as ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid state drives (SSD)), etc.).

[0612] Among them, the implementation embodiments of the above methods on the network device side or the terminal side are all applicable to the embodiments of this non-transitory readable storage medium and can achieve the same technical effects.

[0613] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) containing computer-usable program code.

[0614] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one or more flows or multiple flows and / or blocks Figure 1 one or more blocks or multiple blocks.

[0615] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory produce a manufacture including an instruction means that implements the functions specified in one or more of the processes and / or blocks Figure 1 of the one or more processes and / or blocks Figure 1 specified in the one or more blocks or blocks.

[0616] These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus, such that a series of operational steps are performed on the computer or other programmable apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one or more of the processes and / or blocks Figure 1 of the one or more processes and / or blocks Figure 1 specified in the one or more blocks or blocks.

[0617] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. An information transmission method, applied to a network device, characterized in that, Including: Determine channel state information (CSI) reporting configuration information, and resource configuration information of K channel state information reference signals (CSI-RS) resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; Send the CSI reporting configuration information and the resource configuration information to the terminal; and send CSI-RS according to the resource configuration information; Receive the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information.

2. The information transmission method according to claim 1, wherein The number of antenna ports corresponding to the precoding matrix indicator (PMI) in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

3. The information transmission method according to claim 1, wherein The resource configuration information includes at least one of the following: Configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources; Configuration information of K CSI-RS resource sets, and one CSI-RS resource set includes one CSI-RS resource.

4. The information transmission method according to claim 3, wherein When the resource configuration information includes configuration information of a CSI-RS resource set, the transmission type of the CSI-RS resource is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information (DCI) is located; Wherein, the DCI refers to the DCI that triggers the CSI.

5. The information transmission method according to claim 3, wherein The K CSI-RS resources occupy the same bandwidth; And / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

6. The information transmission method according to claim 1 or 2 or 3, characterized in that The resource configuration information indicates that the K CSI-RS resources are repeatedly transmitted according to the resource element (RE) distribution occupied by the K CSI-RS resources in the smallest unit; Wherein, the smallest unit is configured with at least one of the following: Configuration 1: including one time slot in the time domain and one physical resource block (PRB) in the frequency domain; Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain; Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain.

7. The information transmission method according to claim 6, characterized in that Under the Configuration 2: The number of CSI-RS resources included in each time slot is the same; and / or, The orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

8. The information transmission method according to claim 6, wherein Under the Configuration 3: The number of CSI-RS resources included in each PRB is the same; and / or, The OFDM symbols and subcarrier positions occupied by the CSI-RS resources within each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources within each PRB are the same; and the subcarrier positions occupied by the CSI-RS in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources within each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

9. The information transmission method according to claim 6, characterized in that, In the case where at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed within one time slot and one PRB by means of frequency division multiplexing (FDM) and / or time division multiplexing (TDM).

10. The information transmission method according to claim 9, wherein When multiplexing using the FDM method, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or when multiplexing using the TDM method, the subcarrier positions occupied by the K CSI-RS resources are the same.

11. The information transmission method according to claim 6, wherein When the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured as 0, 1, 2, or 3; Among them, the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained based on the bandwidth occupied by the CSI-RS resources; The PRB offset value of 0 means that the CSI-RS resources occupy the PRBs where the common resource block (CRB) index modulo 4 is equal to 0; The PRB offset value of 1 means that the CSI-RS resources occupy the PRBs where the CRB index modulo 4 is equal to 1; The PRB offset value of 2 means that the CSI-RS resources occupy the PRBs where the CRB index modulo 4 is equal to 2; The PRB offset value of 3 means that the CSI-RS resources occupy the PRBs where the CRB index modulo 4 is equal to 3.

12. The information transmission method according to claim 6, wherein Under Configuration 1 or Configuration 2: the value of the density ρ of the CSI-RS resources is 1, 0.5, or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same; And / or, under the configuration 3: the value of the density ρ of the CSI-RS resource is 0.5 or 0.25; and the density ρ of the K CSI-RS resources is the same, and at least of the PRB offset values of the K CSI-RS resources are different.

13. The information transmission method according to claim 12, wherein The density ρ of the K CSI-RS resources is the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following: The value of the density ρ of the K CSI-RS resources is all 0.

5. At least one of the CSI-RS resources is configured in an even-numbered PRB, and at least one other CSI-RS resource is configured in an odd-numbered PRB; all the CSI-RS resources within two consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the value of the density ρ of the combined CSI-RS resource is 0.5; The value of the density ρ of the K CSI-RS resources is all 0.

25. The PRB offset values of at least 4 of the CSI-RS resources are different from each other; all the CSI-RS resources within four consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the value of the density ρ of the combined CSI-RS resource is 0.

25.

14. The information transmission method according to claim 1, wherein When the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number M of antenna ports includes at least one of the following: For the case where M×K is 64, (M, K) = (32, 2), (16, 4), or (8, 8); For the case where M×K is 128, (M, K) = (32, 4), (16, 8), or (8, 16); For the case where M×K is 48, (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6); For the case where M×K is 96, (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8).

15. The information transmission method according to claim 1, characterized in that When the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number M of antenna ports k includes at least one of the following: For when it is 64, K = 3, and the combination of K Ms k is (32, 16, 16); or, when K = 4, the combination of K Ms k is (32, 16, 8, 8); For when it is 128, K = 5, and the combination of K Ms k is (32, 32, 32, 16, 16); For when it is 48, K = 2, and the combination of K Ms k is (32, 16); or, K = 3, and the combination of K Ms k is (24, 12, 12); For the case where it is 96, K = 4, and the combination of K Ms k is (32, 32, 16, 16) or (32, 24, 24, 16); where M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1, …, K−1}.

16. An information transmission method, applied to a terminal, characterized in that Including: Receiving CSI reporting configuration information sent by a network device, and resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; The number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; Receiving the CSI-RS sent by the network device according to the resource configuration information; Generating a CSI according to the received CSI-RS and the CSI reporting configuration information; Reporting the CSI to the network device.

17. The information transmission method according to claim 16, wherein The number of antenna ports corresponding to the PMI in the CSI is equal to the total number of antenna ports of the K CSI-RS resources.

18. The information transmission method according to claim 16, characterized in that The resource configuration information includes at least one of the following: Configuration information of a CSI-RS resource set, where the CSI-RS resource set includes the K CSI-RS resources; Configuration information of K CSI-RS resource sets, and one CSI-RS resource set includes one CSI-RS resource.

19. The information transmission method according to claim 18, characterized in that, When the resource configuration information includes configuration information of a CSI-RS resource set, the transmission type of the CSI-RS is configured as aperiodic transmission, and the K CSI-RS resources occupy at least two consecutive time slots, the offset value configuration information in the resource configuration information is used to indicate the offset value between the first time slot of the at least two consecutive time slots and the time slot where the downlink control information DCI is located; Wherein, the DCI refers to the DCI that triggers the CSI.

20. The information transmission method according to claim 18, wherein The K CSI-RS resources occupy the same bandwidth; And / or, when the transmission types of the K CSI-RS resources are all configured as periodic transmission, the transmission periods of the K CSI-RS resources are the same.

21. The information transmission method according to claim 16 or 17 or 18, characterized in that The resource configuration information indicates that the K CSI-RS resources are repeatedly transmitted according to the resource element RE distribution occupied by the K CSI-RS resources in the smallest unit; Wherein, the smallest unit is configured with at least one of the following: Configuration 1: including one time slot in the time domain and one PRB in the frequency domain; Configuration 2: including at least two time slots in the time domain and one PRB in the frequency domain; Configuration 3: including one time slot in the time domain and at least two PRBs in the frequency domain.

22. The information transmission method according to claim 21, wherein Under the Configuration 2: The number of CSI-RS resources included in each time slot is the same; and / or, The orthogonal frequency division multiplexing (OFDM) symbols and subcarrier positions occupied by the CSI-RS resources in each time slot are the same; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same; and the OFDM symbols occupied by the CSI-RS resources in two consecutive time slots are consecutive; or, the subcarrier positions occupied by the CSI-RS resources in each time slot are the same, and the OFDM symbols occupied by the CSI-RS resources in at least two time slots are different.

23. The information transmission method according to claim 21, wherein Under the Configuration 3: The number of CSI-RS resources included in each physical resource block (PRB) is the same; and / or, The OFDM symbols and subcarrier positions occupied by the CSI-RS resources in each PRB are the same; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same; and the subcarrier positions occupied by the CSI-RS resources in two consecutive PRBs are consecutive; or, the OFDM symbols occupied by the CSI-RS resources in each PRB are the same, and the subcarrier positions occupied by the CSI-RS resources in at least two PRBs are different.

24. The information transmission method according to claim 21, wherein When at least two of the CSI-RS resources occupy one time slot in the time domain and one PRB in the frequency domain, the CSI-RS resources are multiplexed by frequency division multiplexing (FDM) and / or time division multiplexing (TDM) within one time slot and one PRB.

25. The information transmission method according to claim 24, wherein When multiplexing using the FDM method, the OFDM symbols occupied by the K CSI-RS resources are the same; and / or, when multiplexing using the TDM method, the subcarrier positions occupied by the K CSI-RS resources are the same.

26. The information transmission method according to claim 21, wherein When the value of the density ρ of the CSI-RS resources in the resource configuration information is 0.25, the offset value configuration information in the resource configuration information indicates that the PRB offset value is configured to be 0, 1, 2, or 3; Wherein, the density ρ refers to the ratio of the number of PRBs occupied by each port of the CSI-RS resources to the total number of configured PRBs; the total number of PRBs is obtained based on the bandwidth occupied by the CSI-RS resources; The PRB offset value of 0 means that the CSI-RS resources occupy the PRBs where the common resource block (CRB) index modulo 4 is equal to 0; The PRB offset value of 1 means that the CSI-RS resources occupy the PRBs where the CRB index modulo 4 is equal to 1; The PRB offset value of 2 means that the CSI-RS resources occupy the PRBs where the CRB index modulo 4 is equal to 2; The PRB offset value of 3 means that the CSI-RS resources occupy the PRBs where the CRB index modulo 4 is equal to 3.

27. The information transmission method according to claim 21, wherein Under the Configuration 1 or Configuration 2: the value of the density ρ of the CSI-RS resources is 1, 0.5, or 0.25, and the densities of the K CSI-RS resources are the same and the PRB offset values are the same; And / or, under the configuration 3: the value of the density ρ of the CSI-RS resource is 0.5 or 0.25; and the density ρ of the K CSI-RS resources is the same, and at least of the K CSI-RS resources have different PRB offset values.

28. The information transmission method according to claim 27, wherein The density ρ of the K CSI-RS resources is the same, and at least of the PRB offset values of the K CSI-RS resources are different, including at least one of the following: The density ρ of each of the K CSI-RS resources has a value of 0.5, at least one of the CSI-RS resources is configured in an even-numbered PRB, and at least one other of the CSI-RS resources is configured in an odd-numbered PRB; all CSI-RS resources within 2 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ of the combined CSI-RS resource has a value of 0.5; The density ρ of each of the K CSI-RS resources has a value of 0.25, and the PRB offset values of at least 4 of the CSI-RS resources are different from each other; all CSI-RS resources within 4 consecutive PRBs are combined into a CSI-RS resource with more than 32 ports, and the density ρ of the combined CSI-RS resource has a value of 0.

25.

29. The information transmission method according to claim 16, characterized in that When the number of antenna ports corresponding to the K CSI-RS resources is the same, the combination (M, K) of the number K of the K CSI-RS resources and the number of antenna ports M includes at least one of the following: For the case where M×K is 64, the (M, K) = (32, 2), (16, 4), or (8, 8); For the case where M×K is 128, the (M, K) = (32, 4), (16, 8), or (8, 16); For the case where M×K is 48, the (M, K) = (24, 2), (16, 3), (12, 4), or (8, 6); For the case where M×K is 96, the (M, K) = (32, 3), (24, 4), (16, 6), or (12, 8).

30. The information transmission method according to claim 16, wherein When the number of antenna ports corresponding to at least two of the CSI-RS resources is different, the combination of the number K of the K CSI-RS resources and the number M of antenna ports k includes at least one of the following: For when it is 64, K = 3, and the combination of K Ms k is (32, 16, 16); or, when K = 4, the combination of K Ms k is (32, 16, 8, 8); For when it is 128, K = 5, and the combination of K Ms k is (32, 32, 32, 16, 16); For when it is 48, K = 2, and the combination of K Ms is (32, 16); or, K = 3, and the combination of K Ms k is (24, 12, 12); k ​ For the case where it is 96, K = 4, and the combination of K Ms k is (32, 32, 16, 16) or (32, 24, 24, 16); Among them, M k represents the number of antenna ports of the k-th CSI-RS resource; k ∈ {0, 1, …, K−1}.

31. An information transmission device, the information transmission device being a network device, characterized in that, Comprising a memory, a transceiver, and a processor: The memory is used for storing computer programs; the transceiver is used for transceiving data under the control of the processor; the processor is used for reading the computer programs in the memory and performing the following operations: Determine channel state information CSI reporting configuration information and resource configuration information of K channel state information reference signals CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; Send the CSI reporting configuration information and the resource configuration information to the terminal through the transceiver; And send CSI-RS according to the resource configuration information; Receive, through the transceiver, the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information.

32. An information transmission device, the information transmission device being a terminal, characterized in that, Comprising a memory, a transceiver, and a processor: The memory is used for storing computer programs; the transceiver is used for transceiving data under the control of the processor; the processor is used for reading the computer programs in the memory and performing the following operations: Receive, through the transceiver, the CSI reporting configuration information sent by the network device and the resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; Receive, by means of the transceiver, the CSI-RS sent by the network device according to the resource configuration information; Generate a CSI according to the received CSI-RS and the CSI reporting configuration information; Report the CSI to the network device by means of the transceiver.

33. An information transmission device, applied to a network device, characterized in that, Comprising: A first determination unit, configured to determine CSI reporting configuration information of channel state information CSI, and resource configuration information of K channel state information reference signal CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; A first sending unit, configured to send the CSI reporting configuration information and the resource configuration information to the terminal; And send CSI-RS according to the resource configuration information; A first receiving unit, configured to receive the CSI reported by the terminal according to the received CSI-RS and the CSI reporting configuration information.

34. An information transmission device, applied to a terminal, characterized in that, Comprising: A second receiving unit, configured to receive the CSI reporting configuration information sent by the network device, and resource configuration information of K CSI-RS resources associated with the CSI reporting configuration information; the number of antenna ports in the CSI reporting configuration information is equal to the total number of antenna ports of the K CSI-RS resources; K is an integer greater than 1; A third receiving unit, configured to receive the CSI-RS sent by the network device according to the resource configuration information; A first generating unit, configured to generate a CSI according to the received CSI-RS and the CSI reporting configuration information; A first reporting unit, configured to report the CSI to the network device.

35. A non-transitory readable storage medium, characterized in that, The non-transitory readable storage medium stores a computer program, and the computer program is used to cause a processor to execute the method according to any one of claims 1 to 30.

Images