Information transmission method, device, equipment, system and computer readable storage medium

Abstract

The invention relates to an information transmission method, device, equipment and system and a computer readable storage medium. The method comprises the following steps: a network side device determines antenna ports corresponding to a plurality of CSI-RS resources, wherein the antenna ports corresponding to the CSI-RS resources are different; and transmitting the CSI-RS to the UE on each antenna port corresponding to the plurality of CSI-RS resources, wherein the CSI-RS is used for the UE to generate a CSI report based on the CSI-RS. According to the invention, channel measurement in a large-scale MIMO scene can be supported.

Description

Technical Field

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

[0002] In a communication system, channel state information (CSI) needs to be obtained by using reference signals. In an NR (New Radio) system, the downlink reference signal is CSI-RS (CSI Reference Signal).

[0003] In related technologies, a network-side device transmits CSI-RS to a UE (User Equipment) on an antenna port corresponding to a CSI-RS resource. The UE performs channel measurement based on the CSI-RS transmitted by the network-side device and then feeds back a measurement result to the network-side device, so that the network-side device can understand the channel state information and optimize the quality of wireless communication.

[0004] However, with the rapid development of large-scale MIMO (Multi-input Multi-output) technology, the above-mentioned CSI-RS transmission method cannot be better applied to the channel measurement process in a large-scale MIMO scenario. Summary of the Invention

[0005] Embodiments of this application provide an information transmission method, apparatus, device, system, and computer-readable storage medium, which can support channel measurement in a large-scale MIMO scenario.

[0006] In a first aspect, embodiments of this application provide an information transmission method. The information transmission method is used for a network-side device, and the method includes:

[0007] Determine antenna ports respectively corresponding to a plurality of CSI-RS resources, and each antenna port corresponding to a CSI-RS resource is different;

[0008] Transmit CSI-RS to the UE on each antenna port corresponding to the plurality of CSI-RS resources, where the CSI-RS is used for the UE to generate a CSI report based on the CSI-RS.

[0009] In one embodiment, the method further includes:

[0010] Send the number of ports of the CSI-RS resource for channel measurement associated with the CSI report to the UE, where the number of ports is equal to the total number of antenna ports corresponding to the plurality of CSI-RS resources.

[0011] In one embodiment, determining the antenna ports corresponding to each of the plurality of CSI-RS resources includes:

[0012] Determining each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and / or the resource serial number of each CSI-RS resource.

[0013] In one embodiment, the antenna port numbers of each of the antenna ports are consecutive positive integers.

[0014] In one embodiment, the determining each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and / or the resource serial number of each CSI-RS resource includes:

[0015] For each CSI-RS resource, obtaining the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0016] Determining each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and the antenna port offset values corresponding to each of the CSI-RS resources.

[0017] In one embodiment, the determining each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and the antenna port offset values corresponding to each of the CSI-RS resources includes:

[0018] For each CSI-RS resource, determining the antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0019] p = δ + s + j * L + Δp

[0020] where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0021] In one embodiment, the antenna port offset values corresponding to each of the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0022] The antenna port offset values corresponding to each of the CSI-RS resources are different, and the antenna port offset values corresponding to each of the CSI-RS resources are related to the resource numbers of each of the CSI-RS resources.

[0023] In one embodiment, the determining of each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and / or the resource number of each of the CSI-RS resources includes:

[0024] For each of the CSI-RS resources, according to a second formula, determine the antenna port p corresponding to the CSI-RS resource, and the second formula is:

[0025] p = δ + s + j * L + k * N

[0026] where δ is a preset constant, k is the resource number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the plurality of CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0027] In one embodiment, the determining of each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and / or the resource number of each of the CSI-RS resources includes:

[0028] For each of the CSI-RS resources, according to a third formula, determine the antenna port p corresponding to the CSI-RS resource, and the third formula is:

[0029]

[0030] where δ is a preset constant, k is the resource number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the plurality of CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the kth CSI-RS resource among the plurality of CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the ith CSI-RS resource among the plurality of CSI-RS resources, and the s k 、j k 、Lk and N i is obtained based on the resource configuration information.

[0031] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port numbers of the multiple antenna ports in each group are consecutive positive integers.

[0032] In one embodiment, the absolute value of the difference between the smallest antenna port numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0033] In one embodiment, determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and / or the resource number of each CSI-RS resource includes:

[0034] For each CSI-RS resource, according to the fourth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fourth formula is:

[0035]

[0036] where δ is a preset constant, k is the resource number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0037] In one embodiment, determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and / or the resource number of each CSI-RS resource includes:

[0038] For each CSI-RS resource, according to the fifth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fifth formula is:

[0039]

[0040] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0041] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

[0042] In one embodiment, the method further includes:

[0043] Determine the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

[0044] In one embodiment, the determining the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource includes:

[0045] Sort in ascending order or descending order according to the resource ID of each CSI-RS resource to obtain a sorted sequence;

[0046] Use the position serial number of the CSI-RS resource in the sorted sequence as the resource serial number of the CSI-RS resource.

[0047] In one embodiment, the method further includes:

[0048] Determine the resource serial number of each CSI-RS resource based on the frequency-domain position and time-domain position occupied by each CSI-RS resource.

[0049] In one embodiment, the determining the resource serial number of each CSI-RS resource based on the frequency-domain position and time-domain position occupied by each CSI-RS resource includes:

[0050] First, sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource serial number of each CSI-RS resource according to the first sorting result; or,

[0051] First, sort the CSI-RS resources in ascending order of the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort the CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource serial numbers of the CSI-RS resources according to the second sorting result.

[0052] In one embodiment, the method further includes:

[0053] Receiving a CSI report sent by the UE, where the CSI report is generated by the UE based on successfully received CSI-RS.

[0054] In a second aspect, an embodiment of the present application provides an information transmission method. The information transmission method is used for a UE, and the method includes:

[0055] Receiving CSI-RS sent by a network side device, where the CSI-RS is transmitted on each antenna port corresponding to a plurality of CSI-RS resources, and the antenna port corresponding to each CSI-RS resource is different;

[0056] Determining each antenna port according to the CSI-RS, and generating a CSI report according to each antenna port and the CSI-RS.

[0057] In one embodiment, the method further includes:

[0058] Receiving the number of ports of the CSI-RS resources for channel measurement associated with the CSI report sent by the network side device, where the number of ports is equal to the total number of antenna ports corresponding to the plurality of CSI-RS resources;

[0059] The determining each antenna port according to the CSI-RS includes:

[0060] Determining each antenna port according to the number of ports and the CSI-RS.

[0061] In one embodiment, the determining each antenna port according to the CSI-RS includes:

[0062] Determining each antenna port according to the resource configuration information of the plurality of CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource.

[0063] In one embodiment, the antenna port serial numbers of the antenna ports are consecutive positive integers.

[0064] In one embodiment, determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource includes:

[0065] For each CSI-RS resource, obtain the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0066] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset values corresponding to the CSI-RS resources.

[0067] In one embodiment, determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset values corresponding to the CSI-RS resources includes:

[0068] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a first formula, and the first formula is:

[0069] p = δ + s + j * L + Δp

[0070] Where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0071] In one embodiment, the antenna port offset values corresponding to the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0072] The antenna port offset values corresponding to the CSI-RS resources are different, and the antenna port offset values corresponding to the CSI-RS resources are related to the resource serial numbers of the CSI-RS resources.

[0073] In one embodiment, determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource includes:

[0074] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a second formula, and the second formula is:

[0075] p = δ + s + j * L + k * N

[0076] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0077] In one embodiment, determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource includes:

[0078] For each CSI-RS resource, according to the third formula, determine the antenna port p corresponding to the CSI-RS resource, and the third formula is:

[0079]

[0080] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the kth CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the ith CSI-RS resource among the multiple CSI-RS resources, and the s k 、j k 、L k and N i are obtained based on the resource configuration information.

[0081] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0082] In one embodiment, the absolute value of the difference between the smallest antenna port numbers of the two sets of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the plurality of CSI-RS resources.

[0083] In one embodiment, determining each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources corresponding to the CSI-RS and / or the resource number of each CSI-RS resource includes:

[0084] For each CSI-RS resource, according to the fourth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fourth formula is:

[0085]

[0086] where δ is a preset constant, k is the resource number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the plurality of CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0087] In one embodiment, determining each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources corresponding to the CSI-RS and / or the resource number of each CSI-RS resource includes:

[0088] For each CSI-RS resource, according to the fifth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fifth formula is:

[0089]

[0090] where δ is a preset constant, k is the resource number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the plurality of CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0091] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resources associated with the CSI report for channel measurement.

[0092] In one embodiment, the method further includes:

[0093] Determine the resource sequence numbers of the CSI-RS resources according to the resource IDs of the CSI-RS resources.

[0094] In one embodiment, the determining the resource sequence numbers of the CSI-RS resources according to the resource IDs of the CSI-RS resources includes:

[0095] Sort in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorting sequence;

[0096] Use the position sequence number of the CSI-RS resource in the sorting sequence as the resource sequence number of the CSI-RS resource.

[0097] In one embodiment, the method further includes:

[0098] Determine the resource sequence numbers of the CSI-RS resources based on the frequency domain positions and time domain positions occupied by the CSI-RS resources.

[0099] In one embodiment, the determining the resource sequence numbers of the CSI-RS resources based on the frequency domain positions and time domain positions occupied by the CSI-RS resources includes:

[0100] First, sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource sequence numbers of the CSI-RS resources according to the first sorting result; or,

[0101] First, sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource sequence numbers of the CSI-RS resources according to the second sorting result.

[0102] In a third aspect, an embodiment of the present application provides an information transmission device. The information transmission device is used for a network-side device, and the device includes:

[0103] A determination module, configured to determine the antenna ports corresponding to multiple CSI-RS resources respectively, and the antenna ports corresponding to each CSI-RS resource are different;

[0104] A transmission module, configured to transmit CSI-RS to a UE on the antenna ports corresponding to the multiple CSI-RS resources, where the CSI-RS is used for the UE to generate a CSI report based on the CSI-RS.

[0105] In a fourth aspect, an embodiment of the present application provides an information transmission device. The information transmission device is used for a UE, and the device includes:

[0106] A receiving module, configured to receive CSI-RS sent by a network-side device, where the CSI-RS is transmitted by the network-side device on the antenna ports corresponding to multiple CSI-RS resources respectively, and the antenna ports corresponding to each CSI-RS resource are different;

[0107] A processing module, configured to determine each of the antenna ports according to the CSI-RS, and generate a CSI report according to each of the antenna ports and the CSI-RS.

[0108] In a fifth aspect, an embodiment of the present application provides a network-side device. The network-side device includes a memory, a transceiver, and a processor:

[0109] The memory is used for storing a computer program; the transceiver is used for transmitting and receiving data under the control of the processor; the processor is used for reading the computer program in the memory and performing the following operations:

[0110] Determine the antenna ports corresponding to multiple CSI-RS resources respectively, and the antenna ports corresponding to each CSI-RS resource are different;

[0111] Control the transceiver to transmit CSI-RS to a UE on the antenna ports corresponding to the multiple CSI-RS resources, where the CSI-RS is used for the UE to generate a CSI report based on the CSI-RS.

[0112] In one embodiment, the processor is used for reading the computer program in the memory and further performing the following operations:

[0113] Control the transceiver to send the number of ports of the CSI-RS resource for channel measurement associated with the CSI report to the UE, and the number of ports is equal to the total number of the antenna ports corresponding to the multiple CSI-RS resources.

[0114] In one embodiment, the processor is configured to read a computer program in the memory and specifically perform the following operations:

[0115] Determine each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and / or the resource serial number of each of the CSI-RS resources.

[0116] In one embodiment, the antenna port numbers of each of the antenna ports are consecutive positive integers.

[0117] In one embodiment, the processor is configured to read a computer program in the memory and specifically perform the following operations:

[0118] For each of the CSI-RS resources, obtain the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0119] Determine each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and the antenna port offset values corresponding to each of the CSI-RS resources.

[0120] In one embodiment, the processor is configured to read a computer program in the memory and specifically perform the following operations:

[0121] For each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0122] p = δ + s + j * L + Δp

[0123] where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0124] In one embodiment, the antenna port offset values corresponding to each of the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0125] the antenna port offset values corresponding to each of the CSI-RS resources are different, and the antenna port offset value corresponding to each of the CSI-RS resources is related to the resource serial number of each of the CSI-RS resources.

[0126] In one embodiment, the processor is configured to read a computer program in the memory and specifically perform the following operations:

[0127] For each of the CSI-RS resources, according to a second formula, determine an antenna port p corresponding to the CSI-RS resource, where the second formula is:

[0128] p = δ + s + j * L + k * N

[0129] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0130] In one embodiment, the processor is configured to read a computer program in the memory and specifically perform the following operations:

[0131] For each of the CSI-RS resources, according to a third formula, determine an antenna port p corresponding to the CSI-RS resource, where the third formula is:

[0132]

[0133] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the k-th CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the i-th CSI-RS resource among the multiple CSI-RS resources, and the s k 、j k 、L k and N i are obtained based on the resource configuration information.

[0134] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0135] In one embodiment, the absolute value of the difference between the smallest antenna port numbers of the two sets of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the plurality of CSI-RS resources.

[0136] In one embodiment, the processor is configured to read a computer program in the memory and specifically perform the following operations:

[0137] For each CSI-RS resource, according to the fourth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fourth formula is:

[0138]

[0139] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K-1, K is the number of resources of the plurality of CSI-RS resources, s = 0, 1,..., L-1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L-1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0140] In one embodiment, the processor is configured to read a computer program in the memory and specifically perform the following operations:

[0141] For each CSI-RS resource, according to the fifth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fifth formula is:

[0142]

[0143] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K-1, K is the number of resources of the plurality of CSI-RS resources, s = 0, 1,..., L-1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L-1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0144] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

[0145] In one embodiment, the processor is configured to read the computer program in the memory and further perform the following operations:

[0146] Determine the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

[0147] In one embodiment, the processor is configured to read the computer program in the memory and specifically perform the following operations:

[0148] Sort in ascending or descending order according to the resource ID of each CSI-RS resource to obtain a sorted sequence;

[0149] Use the position serial number of the CSI-RS resource in the sorted sequence as the resource serial number of the CSI-RS resource.

[0150] In one embodiment, the processor is configured to read the computer program in the memory and further perform the following operations:

[0151] Determine the resource serial number of each CSI-RS resource based on the frequency-domain position and time-domain position occupied by each CSI-RS resource.

[0152] In one embodiment, the processor is configured to read the computer program in the memory and specifically perform the following operations:

[0153] First, sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource serial number of each CSI-RS resource according to the first sorting result; or,

[0154] First, sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource serial number of each CSI-RS resource according to the second sorting result.

[0155] In one embodiment, the processor is configured to read the computer program in the memory and further perform the following operations:

[0156] Control the transceiver to receive the CSI report sent by the UE, where the CSI report is generated by the UE based on the successfully received CSI-RS.

[0157] In a sixth aspect, an embodiment of the present application provides a user equipment. The user equipment includes a memory, a transceiver, and a processor:

[0158] The memory is used for storing a computer program; the transceiver is used for transceiving data under the control of the processor; the processor is used for reading the computer program in the memory and performing the following operations:

[0159] Controlling the transceiver to receive CSI-RS sent by a network-side device, where the CSI-RS is transmitted on each antenna port corresponding to a plurality of CSI-RS resources, and the antenna ports corresponding to each CSI-RS resource are different;

[0160] Determining each of the antenna ports according to the CSI-RS, and generating a CSI report according to each of the antenna ports and the CSI-RS.

[0161] In one embodiment, the processor is used for reading the computer program in the memory and further performing the following operations:

[0162] Controlling the transceiver to receive the number of ports of a CSI-RS resource for channel measurement associated with the CSI report sent by the network-side device, where the number of ports is equal to the total number of antenna ports corresponding to the plurality of CSI-RS resources;

[0163] The processor is used for reading the computer program in the memory and specifically performing the following operations:

[0164] Determining each of the antenna ports according to the number of ports and the CSI-RS.

[0165] In one embodiment, the processor is used for reading the computer program in the memory and specifically performing the following operations:

[0166] Determining each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource.

[0167] In one embodiment, the antenna port numbers of each of the antenna ports are consecutive positive integers.

[0168] In one embodiment, the processor is used for reading the computer program in the memory and specifically performing the following operations:

[0169] For each CSI-RS resource, obtaining the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0170] Determine each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and the antenna port offset value corresponding to each of the CSI-RS resources.

[0171] In one embodiment, the processor is configured to read the computer program in the memory and specifically perform the following operations:

[0172] For each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to the first formula, where the first formula is:

[0173] p = δ + s + j * L + Δp

[0174] where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0175] In one embodiment, the antenna port offset values corresponding to the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0176] the antenna port offset values corresponding to the CSI-RS resources are different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource serial number of each CSI-RS resource.

[0177] In one embodiment, the processor is configured to read the computer program in the memory and specifically perform the following operations:

[0178] For each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to the second formula, where the second formula is:

[0179] p = δ + s + j * L + k * N

[0180] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the plurality of CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0181] In one embodiment, the processor is configured to read the computer program in the memory and specifically perform the following operations:

[0182] For each of the CSI-RS resources, according to the third formula, determine the antenna port p corresponding to the CSI-RS resource, where the third formula is:

[0183]

[0184] where δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the k-th CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the i-th CSI-RS resource among the multiple CSI-RS resources, and the s k 、j k 、L k and N i are obtained based on the resource configuration information.

[0185] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port numbers of the multiple antenna ports in each group are consecutive positive integers.

[0186] In one embodiment, the absolute value of the difference between the smallest antenna port numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0187] In one embodiment, the processor is configured to read the computer program in the memory and specifically perform the following operations:

[0188] For each of the CSI-RS resources, according to the fourth formula, determine the antenna port p corresponding to the CSI-RS resource, where the fourth formula is:

[0189]

[0190] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1, ..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1, ..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0191] In one embodiment, the processor is configured to read the computer program in the memory and specifically perform the following operations:

[0192] For each of the CSI-RS resources, according to the fifth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fifth formula is:

[0193]

[0194] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1, ..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1, ..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0195] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

[0196] In one embodiment, the processor is configured to read the computer program in the memory and further perform the following operations:

[0197] Determine the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

[0198] In one embodiment, the processor is configured to read the computer program in the memory and specifically perform the following operations:

[0199] Sort in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorted sequence;

[0200] Use the position serial number of the CSI-RS resource in the sorted sequence as the resource serial number of the CSI-RS resource.

[0201] In one embodiment, the processor is configured to read a computer program in the memory and further perform the following operations:

[0202] Based on the frequency-domain position and time-domain position occupied by each CSI-RS resource, determine the resource serial number of each CSI-RS resource.

[0203] In one embodiment, the processor is configured to read a computer program in the memory and specifically perform the following operations:

[0204] First, sort each CSI-RS resource in ascending order of the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort each CSI-RS resource in ascending order of the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource serial number of each CSI-RS resource according to the first sorting result; or,

[0205] First, sort each CSI-RS resource in ascending order of the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort each CSI-RS resource in ascending order of the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource serial number of each CSI-RS resource according to the second sorting result.

[0206] In a seventh aspect, an information transmission system is provided in an embodiment of the present application. The information transmission system includes a network-side device and a UE.

[0207] The network-side device is configured to perform the steps of the method described in the first aspect above;

[0208] The UE is configured to perform the steps of the method described in the second aspect above.

[0209] In an eighth aspect, a computer-readable storage medium is provided in an embodiment of the present application. A computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method described in the first aspect or the second aspect above are implemented.

[0210] In a ninth aspect, a computer program product is provided in an embodiment of the present application. The computer program product includes a computer program, and when the computer program is executed by a processor, the steps of the method described in the first aspect or the second aspect above are implemented.

[0211] Tenth aspect, an embodiment of the present application provides a chip. The chip includes a programmable logic circuit and / or program instructions, and when the chip runs, it implements the steps of the method described in the first aspect or the second aspect above.

[0212] For the above information transmission method, apparatus, device, system, and computer-readable storage medium, the network-side device determines the antenna ports corresponding to multiple CSI-RS resources, and each CSI-RS resource corresponds to a different antenna port. Then, the network-side device transmits CSI-RS on the antenna ports corresponding to the multiple CSI-RS resources to the UE. This CSI-RS is used by the UE to generate a CSI report based on the CSI-RS. Thus, due to the large number of antennas in the large-scale MIMO scenario, a large antenna array is formed by the large number of antennas to improve the communication performance between the network-side device and the UE. In the current NR system, a CSI-RS resource can correspond to a maximum of 32 antenna ports. Therefore, in the related art, the method of the network-side device transmitting CSI-RS to the UE on the antenna port corresponding to a CSI-RS resource can only support generating one CSI report based on a CSI-RS resource corresponding to a maximum of 32 antenna ports. The CSI report contains information such as PMI for less than or equal to 32 antenna ports. However, in the large-scale MIMO scenario, as the number of antennas increases, the above method in the related art will not be able to support generating one CSI report based on a CSI-RS resource corresponding to more than 32 antenna ports. In the embodiment of the present application, the network-side device determines the antenna ports corresponding to multiple CSI-RS resources, and each CSI-RS resource corresponds to a different antenna port. Each CSI-RS resource among the multiple CSI-RS resources can be, for example, an existing CSI-RS resource that can correspond to a maximum of 32 antenna ports. The network-side device transmits CSI-RS to the UE on the antenna ports corresponding to the multiple CSI-RS resources, and the UE then performs channel measurement based on the CSI-RS transmitted by the network-side device to generate a CSI report. This is equivalent to aggregating multiple existing CSI-RS resources (each CSI-RS resource can correspond to a maximum of 32 antenna ports) into one CSI-RS resource (the number of antenna ports corresponding to this CSI-RS resource is necessarily greater than 32) for channel measurement, so as to be able to generate one CSI report based on a CSI-RS resource corresponding to more than 32 antenna ports. The CSI report contains information such as PMI for more than 32 antenna ports. Therefore, the embodiment of the present application can support the channel measurement process in the large-scale MIMO scenario. Description of the Drawings

[0213] To more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the related art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0214] Figure 1 It is an application environment diagram of the information transmission method in an embodiment;

[0215] Figure 2 It is a flowchart of the information transmission method in an embodiment;

[0216] Figure 3 It is a flowchart of the process for the network side device to determine each antenna port in another embodiment;

[0217] Figure 4 It is a diagram of the antenna port numbers corresponding to two CSI-RS resources in another embodiment;

[0218] Figure 5 It is a diagram of the antenna port numbers corresponding to two CSI-RS resources in another embodiment;

[0219] Figure 6 It is a diagram of the antenna port numbers corresponding to three CSI-RS resources in another embodiment;

[0220] Figure 7 It is a diagram of the antenna port numbers corresponding to two CSI-RS resources in another embodiment;

[0221] Figure 8 It is a diagram of the antenna port numbers of a 64-antenna port;

[0222] Figure 9 It is a diagram of the antenna port numbers of two 32-antenna ports in two antenna panels;

[0223] Figure 10 It is a flowchart of the information transmission method in another embodiment;

[0224] Figure 11 It is a flowchart of the information transmission method in another embodiment;

[0225] Figure 12 It is a flowchart of the information transmission method in another embodiment;

[0226] Figure 13Schematic diagram of the antenna port numbers of the antenna ports corresponding to two CSI-RS resources in another embodiment;

[0227] Figure 14 Structural block diagram of an information transmission device in one embodiment;

[0228] Figure 15 Structural block diagram of an information transmission device in another embodiment;

[0229] Figure 16 Schematic structural diagram of a network-side device in one embodiment;

[0230] Figure 17 Schematic structural diagram of a user equipment UE in another embodiment;

[0231] Figure 18 Schematic structural diagram of a chip in one embodiment. Detailed implementation manners

[0232] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0233] In a communication system, channel state information needs to be obtained by using reference signals. In the NR system, the downlink reference signal is CSI-RS. In the related art, the network-side device transmits CSI-RS to the UE on the antenna ports corresponding to a CSI-RS resource, and the UE performs channel measurement based on the CSI-RS transmitted by the network-side device and then feeds back a CSI report to the network-side device, so that the network-side device can understand the channel state information and optimize the wireless communication quality.

[0234] In the current NR system, a CSI-RS resource corresponds to a maximum of 32 antenna ports. Therefore, the above method of the network-side device transmitting CSI-RS to the UE on the antenna ports corresponding to a CSI-RS resource can only support CSI-RS resources corresponding to a maximum of 32 antenna ports for channel measurement.

[0235] In a large-scale MIMO scenario, there are a large number of antennas, and a large number of antennas form a large antenna array to improve the communication performance between the network-side device and the UE. As the number of antennas increases, it is necessary to support CSI-RS resources corresponding to more than 32 antenna ports for channel measurement. However, the above method of the network-side device transmitting CSI-RS to the UE on the antenna ports corresponding to a CSI-RS resource cannot support CSI-RS resources corresponding to more than 32 antenna ports for channel measurement. Therefore, it cannot be better applied to the channel measurement process in a large-scale MIMO scenario.

[0236] From the perspective of antenna ports, in the current NR system, the number of antenna ports corresponding to a CSI-RS resource is 1, 2, 4, 8, 12, 16, 24, or 32.

[0237] The CSI report is configured through the high-layer parameter CSI-ReportConfig. If the parameter codebook Type in CSI-ReportConfig is configured as 'typeII', 'typeII-PortSelection', 'typeII-r16', 'typeII-PortSelection-r16', or 'typeII-PortSelection-r17', then there can be only one CSI-RS resource in each CSI-RS resource set for channel measurement resource configuration.

[0238] The UE transmits CSI-RS on the antenna port p corresponding to a CSI-RS resource, and p is numbered using the following formula:

[0239] p = 3000 + s + j * L

[0240] j = 0, 1,..., N / L - 1

[0241] s = 0, 1,..., L - 1

[0242] Where L is the number of resource elements (REs) included in the CDM (Code Division Multiplexing) group corresponding to this CSI-RS resource, L ∈ {1, 2, 4, 8}, N is the number of antenna ports corresponding to this CSI-RS resource, j is the index of the CDM group, and s is the index of the RE within a CDM group.

[0243] Taking the number of antenna ports corresponding to the CSI-RS resource being 32 as an example, through the above formula, the antenna port numbers of the 32 antenna ports corresponding to this CSI-RS resource are 0 - 31.

[0244] A CSI-RS resource configures resource mapping through CSI-RS-Resource Mapping, including: frequency-domain position indication, the number of antenna ports corresponding to the CSI-RS resource, time-domain position indication, CDM type, density, and PRB offset.

[0245] Among them, the frequency-domain position indication indicates the positions of the subcarriers occupied by the CSI-RS resource within a PRB (Physical Resource Block) through the parameter bitmap, and the bitmap is configured by the high-layer parameter frequencyDomain Allocation. The time-domain position indication includes the parameters l0 and l1, where l0 ∈ {0, 1,..., 13}, l1 ∈ {2, 3,..., 12}, and l0 and l1 are configured by the high-layer parameters first OFDM Symbol In Time Domain and first OFDM SymbolIn Time Domain2.

[0246] The CDM types include cdm8-FD2-TD4, cdm4-FD2-TD2, fd-CDM2, or noCDM. Among them, fd-CDM2 multiplexes 2 antenna ports on 2 REs in 2 carriers in the frequency domain and 1 symbol in the time domain. cdm4-FD2-TD2 multiplexes 4 antenna ports on 4 REs in 2 carriers in the frequency domain and 2 symbols in the time domain. cdm8-FD2-TD4 multiplexes 8 antenna ports on 8 REs in 2 carriers in the frequency domain and 4 symbols in the time domain. noCDM means that the CSI-RS resource only occupies one RE and there is no concept of code division.

[0247] The density of the CSI-RS resource supports 1, 0.5, and 3. When the density is 0.5, the CSI-RS resource supports PRB offsets of odd and even PRBs.

[0248] For all antenna ports corresponding to the CSI-RS resource within 1 slot (time slot) and 1 PRB, the RE distribution occupied by it within (1 slot, 1 PRB) supports the configurations in the following table:

[0249]

[0250] Among them, represents the starting position of a CDM group in the frequency domain, represents the starting position of a CDM group in the time domain.

[0251] Each CSI-RS resource gives the bandwidth position occupied by the CSI-RS through the parameter freq Band, and is specifically configured by the initial RB position and the bandwidth width. The configuration is indicated in units of 4 RBs. Among them, the reference point of the initial RB (Resource Block) position starts from CRB (Common Resource Block) 0, and the bandwidth size needs to meet the minimum bandwidth requirement, that is Configure the bandwidth size for CSI-RS. Each CSI-RS resource defines the BWP (Bandwidth Part) ID (Identity) where the CSI-RS is located through the parameter bwp-Id.

[0252] The above method only supports numbering the antenna ports corresponding to one CSI-RS resource. As described above, the number of antenna ports corresponding to one CSI-RS resource is assumed to be 32. Through calculation, the antenna port numbers of the 32 antenna ports corresponding to this CSI-RS resource are 0 - 31. However, if it is necessary to support CSI-RS resources corresponding to more than 32 antenna ports for channel measurement, for example, using multiple existing CSI-RS resources (each CSI-RS resource corresponds to 32 antenna ports) aggregated into one CSI-RS resource (the number of antenna ports corresponding to this CSI-RS resource is greater than 32) for channel measurement, then, according to the antenna port numbering method in the above method, the antenna port numbers of the 32 antenna ports corresponding to each CSI-RS resource are all 0 - 31, that is, the antenna ports corresponding to each CSI-RS resource are the same, thus unable to support CSI-RS resources corresponding to more than 32 antenna ports for channel measurement.

[0253] Figure 1 FIG. is a schematic diagram of the implementation environment of an information transmission method provided by an embodiment of the present application. Among them, UE100 communicates with the network-side device 200 through the network, and the network-side device 200 may be a base station.

[0254] UE100 may be, but is not limited to, various personal computers, laptop computers, smart phones, tablet computers, Internet of Things devices, and portable wearable devices. The Internet of Things devices may be smart speakers, smart TVs, smart air conditioners, smart in-vehicle devices, smart cars, etc. The portable wearable devices may be smart watches, smart bracelets, head-mounted devices, etc. The base station may be various forms of base stations, which are not limited here.

[0255] The following uses specific embodiments to elaborate in detail on the technical solution of the present application and how the technical solution of the present application solves the above technical problems. These several specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The following will describe the embodiments of the present application with reference to the accompanying drawings.

[0256] In one embodiment, as Figure 2 shown, an information transmission method is provided. Taking the method applied to the network-side device 200 in Figure 1 as an example for illustration, it includes the following steps:

[0257] Step 201: The network device determines the antenna ports corresponding to each of the multiple CSI-RS resources.

[0258] When the network device determines that CSI-RS needs to be transmitted based on the configuration of the CSI-RS resources, the network device determines the antenna ports corresponding to each of the multiple CSI-RS resources. In the embodiments of the present application, each antenna port corresponding to each CSI-RS resource is different.

[0259] Taking the case where the multiple CSI-RS resources are two CSI-RS resources as an example, exemplarily, assuming that the two CSI-RS resources respectively correspond to 32 antenna ports, the network device determines that the antenna ports corresponding to the first CSI-RS resource are antenna ports 0 - 31 (0 - 31 are the antenna port numbers of each antenna port), and the network device determines that the antenna ports corresponding to the second CSI-RS resource are antenna ports 32 - 63 (32 - 63 are the antenna port numbers of each antenna port). It can be seen that each antenna port corresponding to each CSI-RS resource is different.

[0260] Exemplarily, assuming that the first CSI-RS resource corresponds to 16 antenna ports and the second CSI-RS resource corresponds to 32 antenna ports, the network device determines that the antenna ports corresponding to the first CSI-RS resource are antenna ports 0 - 15 (0 - 15 are the antenna port numbers of each antenna port), and the network device determines that the antenna ports corresponding to the second CSI-RS resource are antenna ports 16 - 47 (16 - 47 are the antenna port numbers of each antenna port). It can be seen that each antenna port corresponding to each CSI-RS resource is different.

[0261] In the embodiments of the present application, each CSI-RS resource can be the resource structure of an existing CSI-RS resource, and the number of antenna ports corresponding to each CSI-RS resource can be 1, 2, 4, 8, 12, 16, 24, or 32. Through the implementation of step 201 by the network device, each antenna port corresponding to each CSI-RS resource is different, that is, each antenna port corresponding to each CSI-RS resource does not repeat, so that the combined numbering of the antenna ports corresponding to each of the multiple CSI-RS resources can be realized, which is equivalent to aggregating multiple existing CSI-RS resources (each CSI-RS resource corresponds to a maximum of 32 antenna ports) into one CSI-RS resource (the number of antenna ports corresponding to this CSI-RS resource is greater than 32).

[0262] Next, an exemplary introduction is given to the method by which the network device determines the antenna ports corresponding to each of the multiple CSI-RS resources in step 201.

[0263] In the embodiments of the present application, the network-side device may determine each antenna port according to the resource configuration information of multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource.

[0264] Exemplarily, the network-side device may determine the resource configuration information of multiple CSI-RS resources through a high-layer parameter. For example, the high-layer parameter may be CSI-ResourceConfig. The resource configuration information may include parameters such as the number of antenna ports corresponding to each CSI-RS resource, time-domain position indication, frequency-domain position indication, type of CDM group corresponding to each CSI-RS resource, density, etc.

[0265] In a possible implementation manner of step 201, the network-side device may determine the antenna ports corresponding to multiple CSI-RS resources according to the resource configuration information. In another possible implementation manner of step 201, the network-side device may also determine each antenna port according to the resource configuration information of multiple CSI-RS resources and the resource sequence number of each CSI-RS resource.

[0266] Taking the network-side device determining the antenna ports corresponding to multiple CSI-RS resources according to the above resource configuration information as an example, optionally, the network-side device may substitute relevant parameters in the resource configuration information into a pre-set formula and calculate the antenna port numbers of the antenna ports corresponding to multiple CSI-RS resources through the formula; optionally, the network-side device may also input the relevant parameters in the resource configuration information into a pre-trained model and output the antenna port numbers of the antenna ports corresponding to multiple CSI-RS resources through the model.

[0267] In other possible implementation manners of step 201, the antenna port numbers of the antenna ports corresponding to multiple CSI-RS resources may also be calculated by other devices instead of the network-side device. The network-side device obtains the antenna port numbers of the antenna ports corresponding to multiple CSI-RS resources from the other device, so as to determine the antenna ports corresponding to multiple CSI-RS resources. Here, the specific manner for the network-side device to determine the antenna ports corresponding to multiple CSI-RS resources is not limited.

[0268] Step 202, the network-side device transmits CSI-RS to the UE on each antenna port corresponding to multiple CSI-RS resources.

[0269] After the network-side device determines the antenna ports corresponding to multiple CSI-RS resources, the network-side device performs resource mapping and transmits CSI-RS to the UE on each antenna port corresponding to multiple CSI-RS resources. In other words, the network-side device maps CSI-RS to multiple CSI-RS resources according to the antenna port numbers of each antenna port for transmission.

[0270] Among them, the CSI-RS transmitted by the network-side device on each antenna port is used for the UE to generate a CSI report based on the CSI-RS.

[0271] The UE receives each CSI-RS transmitted by the network-side device on each antenna port. The UE determines each antenna port according to each CSI-RS, that is, the UE determines the antenna port to which the RE occupied by each CSI-RS is mapped. The manner in which the UE determines the antenna port number of each antenna port is similar to the manner in which the network-side device determines the antenna port corresponding to each of the multiple CSI-RS resources in step 201 above. Then, the UE generates a CSI report according to each antenna port and the CSI-RS. Each row of the PMI (Precoding Matrix Indicator) in this CSI report corresponds one by one to each antenna port.

[0272] In the above embodiments, the network side device determines the antenna ports corresponding to each of the multiple CSI-RS resources, and the antenna ports corresponding to each CSI-RS resource are different. Then, the network side device transmits the CSI-RS on the respective antenna ports corresponding to the multiple CSI-RS resources to the UE. The CSI-RS is used for the UE to generate a CSI report based on the CSI-RS. Thus, due to the large number of antennas in the large-scale MIMO scenario, a large number of antennas form a large antenna array to improve the communication performance between the network side device and the UE. In the current NR system, a CSI-RS resource can correspond to a maximum of 32 antenna ports. Therefore, in the related art, the method of the network side device transmitting the CSI-RS to the UE on the antenna ports corresponding to a CSI-RS resource can only support generating one CSI report based on the CSI-RS resource corresponding to a maximum of 32 antenna ports. The CSI report contains information such as PMI of less than or equal to 32 antenna ports. However, in the large-scale MIMO scenario, as the number of antennas increases, the above method in the related art will not be able to support generating one CSI report based on the CSI-RS resource corresponding to more than 32 antenna ports. In the embodiments of the present application, the network side device determines the antenna ports corresponding to each of the multiple CSI-RS resources, and the antenna ports corresponding to each CSI-RS resource are different. Each of the multiple CSI-RS resources can be, for example, an existing CSI-RS resource that can correspond to a maximum of 32 antenna ports. The network side device transmits the CSI-RS to the UE on the respective antenna ports corresponding to the multiple CSI-RS resources. The UE then performs channel measurement based on the CSI-RS transmitted by the network side device to generate a CSI report, which is equivalent to aggregating multiple existing CSI-RS resources (each CSI-RS resource can correspond to a maximum of 32 antenna ports) into one CSI-RS resource (the number of antenna ports corresponding to this CSI-RS resource is necessarily greater than 32) for channel measurement, so as to be able to generate one CSI report based on the CSI-RS resource corresponding to more than 32 antenna ports. The CSI report contains information such as PMI of more than 32 antenna ports. Therefore, the embodiments of the present application can support the channel measurement process in the large-scale MIMO scenario.

[0273] In one embodiment, based on Figure 2 the embodiments shown below, several possible implementation manners will be used to exemplarily introduce the process of the network side device determining each antenna port according to the resource configuration information of the multiple CSI-RS resources and / or the resource serial number of each CSI-RS resource.

[0274] 1) The antenna port numbers of the antenna ports corresponding to each of the multiple CSI-RS resources are consecutive positive integers, that is, for each CSI-RS among the multiple CSI-RS resources, the antenna port numbers of the antenna ports to which the REs occupied by the CSI-RS are mapped are consecutive and all positive integers.

[0275] In this embodiment, it is further divided into the following possible embodiments:

[0276] 1.1) Refer to Figure 3 , the network side device can execute Figure 3 the steps 301 and 302 shown in

[0277] Step 301, for each CSI-RS resource, the network side device obtains the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information.

[0278] In this embodiment, each of the multiple CSI-RS resources is respectively configured with an antenna port offset value. The antenna port offset value may refer to the offset value of the antenna port number of the antenna port, and the antenna port offset values corresponding to the CSI-RS resources in this embodiment are different.

[0279] In this embodiment, the number of antenna ports, the type of CDM group, and the number of CDM groups corresponding to each of the multiple CSI-RS resources may be the same or different. For example, taking the multiple CSI-RS resources including three CSI-RS resources as an example, optionally, the number of antenna ports corresponding to each CSI-RS resource is 32; optionally, the number of antenna ports corresponding to one CSI-RS resource is 32, and the number of antenna ports corresponding to the other two CSI-RS resources is 16; optionally, the number of antenna ports corresponding to one CSI-RS resource is 32, the number of antenna ports corresponding to one CSI-RS resource is 16, and the number of antenna ports corresponding to one CSI-RS resource is 8, and so on.

[0280] The following introduces two possible configuration methods for the antenna port offset value.

[0281] Firstly, the difference between the antenna port offset values corresponding to any two of the multiple CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources.

[0282] Exemplarily, continuing to take the multiple CSI-RS resources including three CSI-RS resources as an example:

[0283] Suppose the number of antenna ports corresponding to a CSI-RS resource is 32, the number of antenna ports corresponding to another CSI-RS resource is 16, and the number of antenna ports corresponding to yet another CSI-RS resource is 8. The antenna port offset value corresponding to the CSI-RS resource with 32 antenna ports is 0, the antenna port offset value corresponding to the CSI-RS resource with 16 antenna ports is 32, then the antenna port offset value corresponding to the CSI-RS resource with 8 antenna ports is 48.

[0284] Suppose the number of antenna ports corresponding to a CSI-RS resource is 32, and the number of antenna ports corresponding to each of the other two CSI-RS resources is 16. The antenna port offset value corresponding to the CSI-RS resource with 32 antenna ports is 0, the antenna port offset value corresponding to one of the CSI-RS resources with 16 antenna ports is 32, and the antenna port offset value corresponding to the other CSI-RS resource with 16 antenna ports is 48.

[0285] Suppose the number of antenna ports corresponding to each of the three CSI-RS resources is 32. The antenna port offset value corresponding to one of the CSI-RS resources with 32 antenna ports is 0, the antenna port offset value corresponding to another CSI-RS resource with 32 antenna ports is 32, and the antenna port offset value corresponding to the third CSI-RS resource with 32 antenna ports is 64.

[0286] In this way, after arranging multiple antenna port offset values in ascending order, the absolute value of the difference between two adjacent antenna port offset values is equal to the number of antenna ports corresponding to the CSI-RS resource with the smallest antenna port offset value among these two antenna port offset values, and the minimum value of the multiple antenna port offset values is 0.

[0287] With this configuration method of the antenna port offset value, the antenna port offset value corresponding to each CSI-RS resource can be flexibly configured, without depending on other configuration information of each CSI-RS resource. During the configuration process, one CSI-RS resource can be arbitrarily selected from multiple CSI-RS resources first, and the antenna port offset value corresponding to the selected CSI-RS resource is configured as 0. Then, another CSI-RS resource is arbitrarily selected from the remaining multiple CSI-RS resources whose antenna port offset values have not been configured, and the antenna port offset value corresponding to the second selected CSI-RS resource is configured as the number of antenna ports corresponding to the first CSI-RS resource. Then, another CSI-RS resource is arbitrarily selected from the remaining multiple CSI-RS resources whose antenna port offset values have not been configured, and the antenna port offset value corresponding to the third selected CSI-RS resource is configured as the sum of the number of antenna ports corresponding to the first CSI-RS resource and the number of antenna ports corresponding to the second CSI-RS resource. This configuration method of the antenna port offset value has a simple implementation logic, is easy to implement and promote, has a small amount of computation, and consumes little computing resources.

[0288] Second, the antenna port offset value corresponding to each CSI-RS resource is related to the resource serial number of each CSI-RS resource (the resource serial number refers to the serial number preset for each CSI-RS resource among multiple CSI-RS resources. For example, the resource serial number of the first CSI-RS resource among multiple CSI-RS resources is 1, and the resource serial number of the k-th CSI-RS resource among multiple CSI-RS resources is k).

[0289] Exemplarily, for multiple CSI-RS resources, a resource serial number k is preset for each CSI-RS resource, k = 0, 1,..., K - 1, where K is the number of CSI-RS resources. The antenna port offset value corresponding to the CSI-RS resource with each resource serial number can be the sum of the numbers of antenna ports corresponding to the CSI-RS resources with the previous resource serial numbers.

[0290] For example, the antenna port offset value corresponding to the CSI-RS resource with the resource serial number 0 among multiple CSI-RS resources is 0, the antenna port offset value corresponding to the CSI-RS resource with the resource serial number 1 is the number of antenna ports corresponding to the CSI-RS resource with the resource serial number 0, and the antenna port offset value corresponding to the CSI-RS resource with the resource serial number 2 is the sum of the number of antenna ports corresponding to the CSI-RS resource with the resource serial number 0 and the number of antenna ports corresponding to the CSI-RS resource with the resource serial number 1, and so on.

[0291] If this process is represented by a formula, for example, referring to Formula 1, the network-side device can calculate the antenna port offset value Δp corresponding to each CSI-RS resource through Formula 1:

[0292]

[0293] where k is the resource serial number of the CSI-RS resource, K is the number of resources of multiple CSI-RS resources, and N k is the number of antenna ports corresponding to the k-th CSI-RS resource.

[0294] In this configuration method of the antenna port offset value, after setting the resource serial number for each CSI-RS resource, the antenna port offset value corresponding to the first CSI-RS resource is 0, and the antenna port offset value corresponding to each subsequent CSI-RS resource can be conveniently obtained by quickly summing the number of antenna ports corresponding to one or more CSI-RS resources before the resource serial number of this CSI-RS resource. The implementation process is simple and the amount of calculation is small.

[0295] In this way, the network-side device configures the corresponding antenna port offset value for each CSI-RS resource respectively.

[0296] Step 302, the network-side device determines each antenna port according to the resource configuration information of multiple CSI-RS resources and the antenna port offset value corresponding to each CSI-RS resource.

[0297] Next, the network-side device determines each antenna port according to the remaining information in the above resource configuration information except the antenna port offset value corresponding to each CSI-RS resource and the antenna port offset value corresponding to each CSI-RS resource.

[0298] In a possible implementation manner of step 302, for each CSI-RS resource, the network-side device determines the antenna port p corresponding to the CSI-RS resource according to the first formula, and the first formula is:

[0299] p = δ + s + j * L + Δp

[0300] where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource. s, j, L, and Δp are obtained based on the resource configuration information.

[0301] Exemplarily, δ can be 3000. Of course, during implementation, δ can also take other values according to actual needs. p = 3000 + s + j * L is the formula for determining the antenna port p corresponding to a CSI-RS resource in the related art. In this embodiment, Δp is added to this formula. That is, for each CSI-RS resource among the multiple CSI-RS resources in this embodiment, the antenna port numbers of the antenna ports corresponding to this CSI-RS resource can be calculated first by using the method in the related art for determining the antenna port corresponding to a CSI-RS resource. Then, the antenna port offset value corresponding to this CSI-RS resource is added to the antenna port numbers of the antenna ports corresponding to this CSI-RS resource. Finally, the antenna port numbers of the antenna ports corresponding to the multiple CSI-RS resources in this embodiment are obtained, that is, the network side device determines the antenna ports corresponding to the multiple CSI-RS resources.

[0302] Hereinafter, through illustrations, the antenna ports corresponding to the multiple CSI-RS resources determined by the network side device in this embodiment are shown.

[0303] Suppose there are 2 CSI-RS resources among the multiple CSI-RS resources. The number of antenna ports corresponding to each CSI-RS resource is 32, the type of CDM group corresponding to each CSI-RS resource is cdm8-FD2-TD4, the number of CDM groups corresponding to each CSI-RS resource is 4, and the number of REs included in each CDM group corresponding to each CSI-RS resource is 8. The antenna port offset values corresponding to the 2 CSI-RS resources are 0 and 32 respectively. Refer to Figure 4 , Figure 4 are the antenna port numbers of the antenna ports corresponding to the 2 CSI-RS resources determined by the network side device adopting the implementation manner of this embodiment.

[0304] As Figure 4 shown, the antenna port offset value corresponding to the first CSI-RS resource in the time domain (Time Domain, TD) is 0. The antenna port numbers of the 32 antenna ports corresponding to the first CSI-RS resource are 3000, 3001, 3002,..., 3031 in sequence. The antenna ports corresponding to the first CSI-RS resource are different; the antenna port offset value corresponding to the second CSI-RS resource in the time domain (Time Domain, TD) is 32. The antenna port numbers of the 32 antenna ports corresponding to the second CSI-RS resource are 3032, 3033, 3034,..., 3063 in sequence. The antenna ports corresponding to the second CSI-RS resource are different, and the antenna ports corresponding to the first CSI-RS resource are also different from the antenna ports corresponding to the second CSI-RS resource.

[0305] After the network device determines the antenna ports corresponding to multiple CSI-RS resources according to the implementation manner in 1.1), the network device transmits the CSI-RS to the UE on each antenna port corresponding to the multiple CSI-RS resources.

[0306] The UE receives each CSI-RS sent by the network device on each antenna port. The UE determines each antenna port according to each CSI-RS, that is, the UE determines the antenna port to which the RE occupied by each CSI-RS is mapped. The manner in which the UE determines the antenna port numbers of each antenna port is similar to the manner in which the network device determines the antenna ports corresponding to multiple CSI-RS resources according to the implementation manner in 1.1). Then, the UE generates a CSI report according to each antenna port and the CSI-RS.

[0307] It should be noted that the form of the first formula does not constitute a limitation on the implementation manner corresponding to the first formula. As long as the solution has the same idea of determining each antenna port as that expressed by the first formula, it should be within the protection scope of this application. For example, for each CSI-RS resource, the network device can also directly use the antenna port p corresponding to the CSI-RS resource plus the antenna port offset value corresponding to the CSI-RS resource, where p = δ + s + j * L. The meanings of δ, s, j, and L are as described above and will not be elaborated here.

[0308] Through the antenna port offset value corresponding to each CSI-RS resource in the above embodiment and in combination with the existing related technologies, the antenna ports corresponding to multiple CSI-RS resources can be determined. Compared with the related technologies, this implementation manner has little impact on the existing protocol.

[0309] In another possible implementation manner of step 302, the network device may send the resource configuration information of multiple CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource to other devices. The other devices determine each antenna port according to the resource configuration information of multiple CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource. The network device directly obtains the antenna port numbers of the antenna ports corresponding to each CSI-RS resource from the other devices, so as to determine the antenna ports corresponding to each CSI-RS resource. The specific implementation manner of step 302 is not limited here.

[0310] 1.2) For each CSI-RS resource, the network device determines the antenna port p corresponding to the CSI-RS resource according to the second formula, so as to implement the process of determining each antenna port according to the resource configuration information of multiple CSI-RS resources and / or the resource number of each CSI-RS resource. The second formula is:

[0311] p = δ + s + j * L + k * N

[0312] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and s, j, L, and N are obtained based on the resource configuration information.

[0313] Similar to the implementation manner of the above 1.1), δ can be 3000. Of course, during the implementation process, δ can also take other values as needed. p = 3000 + s + j * L is the formula for determining the antenna port p corresponding to a CSI-RS resource in the related art.

[0314] The difference between this embodiment and the implementation manner of the above 1.1) is that for each CSI-RS resource among multiple CSI-RS resources in this embodiment, the number of antenna ports, the type of CDM group, and the number of CDM groups are the same. On the basis of the above formula in the related art, this embodiment adds k * N, where k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, and N is the number of antenna ports corresponding to a CSI-RS resource (the number of antenna ports corresponding to each CSI-RS resource is the same). Then, for the CSI-RS resource with k = 0 among multiple CSI-RS resources, since 0 * N = 0, therefore, it still adopts the method in the related art for determining the antenna port corresponding to a CSI-RS resource to calculate the antenna port serial numbers of each antenna port corresponding to the CSI-RS resource with k = 0. For the CSI-RS resource with k = 1 among multiple CSI-RS resources, since 1 * N = N, therefore, it adopts the method in the related art for determining the antenna port corresponding to a CSI-RS resource to calculate the antenna port serial numbers of each antenna port corresponding to the CSI-RS resource with k = 1. The antenna port serial numbers of each antenna port need to be added with N to be the final antenna port serial numbers of each antenna port corresponding to the CSI-RS resource with k = 1. For the CSI-RS resource with k = 2 among multiple CSI-RS resources, since 2 * N = 2N, therefore, it adopts the method in the related art for determining the antenna port corresponding to a CSI-RS resource to calculate the antenna port serial numbers of each antenna port corresponding to the CSI-RS resource with k = 2. The antenna port serial numbers of each antenna port need to be added with 2N to be the final antenna port serial numbers of each antenna port corresponding to the CSI-RS resource with k = 2, and so on. Finally, the antenna port serial numbers of each antenna port corresponding to multiple CSI-RS resources in this embodiment are obtained, that is, the network-side device determines the antenna ports corresponding to multiple CSI-RS resources.

[0315] Next, through illustrations, the antenna ports corresponding to multiple CSI-RS resources determined by the network-side device in this embodiment are shown.

[0316] Assume that the multiple CSI-RS resources are 2 CSI-RS resources. The number of antenna ports corresponding to each CSI-RS resource is 32, the type of CDM group corresponding to each CSI-RS resource is cdm8-FD2-TD4, the number of CDM groups corresponding to each CSI-RS resource is 4, and the number of REs included in each CDM group corresponding to each CSI-RS resource is 8. The resource sequence numbers corresponding to the 2 CSI-RS resources are k = 0 and k = 1 respectively. Refer to Figure 5 , Figure 5 are the antenna port numbers of the antenna ports corresponding to the 2 CSI-RS resources determined by the network-side device adopting the implementation manner of this embodiment.

[0317] As Figure 5 shown, the antenna port numbers of the 32 antenna ports corresponding to the CSI-RS resource with k = 0 are 3000, 3001, 3002,..., 3031 in sequence, and the antenna ports corresponding to the CSI-RS resource with k = 0 are different; when k = 1, k * N = 32, then the antenna port numbers of the 32 antenna ports corresponding to the CSI-RS resource with k = 1 are numbered starting from 3000 + 32 = 3032. The antenna port numbers of the 32 antenna ports corresponding to the CSI-RS resource with k = 1 are 3032, 3033, 3034,..., 3063 in sequence, and the antenna ports corresponding to the CSI-RS resource with k = 1 are different, and the antenna ports corresponding to the CSI-RS resource with k = 0 are also different from the antenna ports corresponding to the CSI-RS resource with k = 1.

[0318] After the network-side device determines the antenna ports corresponding to multiple CSI-RS resources according to the implementation manner of 1.2), the network-side device transmits CSI-RS to the UE on each antenna port corresponding to the multiple CSI-RS resources.

[0319] The UE receives each CSI-RS sent by the network-side device on each antenna port. The UE determines each antenna port according to each CSI-RS, that is, the UE determines the antenna port to which the RE occupied by each CSI-RS is mapped. The way for the UE to determine the antenna port number of each antenna port is similar to the way for the network-side device to determine the antenna ports corresponding to multiple CSI-RS resources according to the implementation manner of 1.2). Then, the UE generates a CSI report according to each antenna port and CSI-RS.

[0320] It should be noted that the form of the second formula does not constitute a limitation on the implementation manner corresponding to the second formula. As long as the solution has the same idea of determining each antenna port as that expressed by the second formula, it should be within the protection scope of this application. For example, for each CSI-RS resource, the network-side device can also directly use the antenna port p corresponding to the CSI-RS resource plus k*N corresponding to the CSI-RS resource, where p = δ + s + j*L. The meanings of δ, s, j, L, and N are as described above and will not be elaborated here.

[0321] In the above embodiment, after setting the resource serial number for each CSI-RS resource, the change amount of the antenna port serial number to be added corresponding to each CSI-RS resource is determined by k*N, and then the antenna ports corresponding to multiple CSI-RS resources can be determined by combining the existing related technologies. Compared with the related technologies, this implementation manner has little impact on the existing protocol.

[0322] 1.3) For each CSI-RS resource, the network-side device determines the antenna port p corresponding to the CSI-RS resource according to the third formula to implement the process of determining each antenna port based on the resource configuration information of multiple CSI-RS resources and / or the resource serial number of each CSI-RS resource. The third formula is:

[0323]

[0324] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the kth CSI-RS resource among multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the ith CSI-RS resource among multiple CSI-RS resources, s k , j k , L k and N i are obtained based on the resource configuration information.

[0325] Similar to the above embodiment, δ can be 3000. Of course, during implementation, δ can also take other values according to actual needs.

[0326] The difference between this embodiment and the implementation manner in 1.2) above is that the number of antenna ports corresponding to each CSI-RS resource, the type of CDM group, and the number of CDM groups among multiple CSI-RS resources can be the same or different. Therefore, s k 、j k 、L k are all calculated based on the specific resource situation of the k-th CSI-RS resource. And for the k-th CSI-RS resource, according to p = δ + s k +j k *L k , after calculating the antenna port numbers of each antenna port corresponding to the k-th CSI-RS resource, it is also necessary to add , that is, add the number of antenna ports corresponding to the previous k - 1 CSI-RS resources respectively.

[0327] It should be noted that when k = 0, the 0-th CSI-RS resource calculates the antenna port numbers of each antenna port corresponding to the 0-th CSI-RS resource according to p = δ + s k +j k *L k , that is, k ≥ 1 in the second formula.

[0328] Then, for the CSI-RS resource with k = 0 among multiple CSI-RS resources, it only uses the formula p = δ + s k +j k *L k to calculate the antenna port numbers of each antenna port corresponding to the CSI-RS resource with k = 0; for the CSI-RS resource with k = 1 among multiple CSI-RS resources, when it uses the formula p = δ + s k +j k *L k to calculate the antenna port numbers of each antenna port corresponding to the CSI-RS resource with k = 1, the antenna port numbers of each antenna port need to be added with N0, where N0 is the number of antenna ports corresponding to the CSI-RS resource with k = 0, to be the final antenna port numbers of each antenna port corresponding to the CSI-RS resource with k = 1; for the CSI-RS resource with k = 2 among multiple CSI-RS resources, when it uses the formula p = δ + s k +j k *L kWhen calculating the antenna port numbers of each antenna port corresponding to the CSI-RS resource with k = 2, the antenna port numbers of each antenna port need to be added with N0 + N1. N0 is the number of antenna ports corresponding to the CSI-RS resource with k = 0, and N1 is the number of antenna ports corresponding to the CSI-RS resource with k = 1. Only in this way can we get the antenna port numbers of each antenna port corresponding to the CSI-RS resource with k = 2 finally. And so on, finally we get the antenna port numbers of each antenna port corresponding to multiple CSI-RS resources in this embodiment, that is, the network side device determines the antenna ports corresponding to multiple CSI-RS resources.

[0329] Next, through the following figures, the antenna ports corresponding to multiple CSI-RS resources determined by the network side device in this embodiment are shown.

[0330] Suppose there are 3 CSI-RS resources, the number of antenna ports corresponding to the CSI-RS resource with k = 0 is 32, and the number of antenna ports corresponding to the CSI-RS resources with k = 1 and k = 2 are both 16. Refer to Figure 6 , Figure 6 are the antenna port numbers of the antenna ports corresponding to the 3 CSI-RS resources determined by the network side device adopting the implementation manner of this embodiment respectively.

[0331] As Figure 6 shown, the antenna port numbers of the 32 antenna ports corresponding to the CSI-RS resource with k = 0 are 3000, 3001, 3002,..., 3031 in sequence, and the antenna ports corresponding to the CSI-RS resource with k = 0 are different; when k = 1, N0 = 32, then the antenna port numbers of the 16 antenna ports corresponding to the CSI-RS resource with k = 1 start numbering from 3000 + 32 = 3032, and the antenna port numbers of the 16 antenna ports corresponding to the CSI-RS resource with k = 1 are 3032, 3033, 3034,..., 3047 in sequence, and the antenna ports corresponding to the CSI-RS resource with k = 1 are different; when k = 2, N0 + N1 = 48, then the antenna port numbers of the 16 antenna ports corresponding to the CSI-RS resource with k = 2 start numbering from 3000 + 48 = 3048, and the antenna port numbers of the 16 antenna ports corresponding to the CSI-RS resource with k = 2 are 3048, 3049, 3050,..., 3063 in sequence, and the antenna ports corresponding to the CSI-RS resource with k = 2 are different, and the antenna ports corresponding to the CSI-RS resource with k = 0, the antenna ports corresponding to the CSI-RS resource with k = 1 and the antenna ports corresponding to the CSI-RS resource with k = 2 are also different.

[0332] After the network device determines the antenna ports corresponding to each of the multiple CSI-RS resources according to the implementation manner in 1.3), the network device transmits the CSI-RS to the UE on each of the antenna ports corresponding to the multiple CSI-RS resources.

[0333] The UE receives each CSI-RS sent by the network device on each antenna port. The UE determines each antenna port according to each CSI-RS, that is, the UE determines the antenna port to which the RE occupied by each CSI-RS is mapped. The manner in which the UE determines the antenna port numbers of each antenna port is similar to the manner in which the network device determines the antenna ports corresponding to each of the multiple CSI-RS resources according to the implementation manner in 1.3). Then, the UE generates a CSI report according to each antenna port and the CSI-RS.

[0334] In the above embodiments, when the number of antenna ports corresponding to each CSI-RS resource among the multiple CSI-RS resources, the type of CDM group, and the number of CDM groups are the same or different, it is possible to determine the antenna ports corresponding to each of the multiple CSI-RS resources, with a wide range of applications and higher implementation flexibility.

[0335] Above, an exemplary introduction has been made to the process in which the network device determines each antenna port when the antenna port numbers of each antenna port corresponding to each of the multiple CSI-RS resources are consecutive positive integers, according to the resource configuration information of the multiple CSI-RS resources and / or the resource number of each CSI-RS resource.

[0336] Hereinafter, other possible implementation manners for the network device to determine each antenna port according to the resource configuration information of the multiple CSI-RS resources and / or the resource number of each CSI-RS resource will be introduced.

[0337] 2) The multiple antenna ports corresponding to each CSI-RS resource are divided into two groups. The antenna port numbers of the multiple antenna ports in each group are consecutive positive integers. The multiple antenna ports in each group correspond to the same polarization direction of the antenna, and different groups correspond to different polarization directions of the antenna.

[0338] In this implementation manner, it is further divided into the following possible implementation manners:

[0339] 2.1) For each CSI-RS resource, the network device determines the antenna port p corresponding to the CSI-RS resource according to the fourth formula, so as to implement the process of determining each antenna port according to the resource configuration information of the multiple CSI-RS resources and / or the resource number of each CSI-RS resource. The fourth formula is:

[0340]

[0341] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the number of resources of multiple CSI-RS resources, s = 0, 1, ..., L-1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1, ..., N / L-1, N is the number of antenna ports corresponding to the CSI-RS resource, and s, j, L, and N are obtained based on the resource configuration information.

[0342] In this embodiment, the number of antenna ports, the type of CDM group, and the number of CDM groups corresponding to each CSI-RS resource among multiple CSI-RS resources are the same.

[0343] Similar to the above embodiment, δ can be 3000. Of course, during implementation, δ can also take other values according to actual needs. For each CSI-RS resource with each resource serial number among multiple CSI-RS resources, the network side device substitutes the resource serial number of the CSI-RS resource, s, j, L, and N in the resource configuration information into the fourth formula to calculate the antenna port serial numbers corresponding to each antenna port of each CSI-RS resource. It should be noted that taking the number of CDM groups as 4 (j = 0, 1, 2, 3) and the number of REs included in the CDM group as 8 (s = 0, 1, 2, 3, 4, 5, 6, 7) as an example, during the process of substituting into the above first formula to fifth formula for calculation, the network side device can first substitute s = 0 and j = 0 to calculate the antenna port mapped by the first RE in the first CDM group. Then, the network side device can first substitute s = 1 and j = 0 to calculate the antenna port mapped by the second RE in the first CDM group. After calculating the antenna ports mapped by the 8 REs in the first CDM group, substitute s = 0 and j = 1 to calculate the antenna port mapped by the first RE in the second CDM group, and so on, until calculating the antenna ports mapped by each RE in each CDM group. The network side device then determines the antenna ports corresponding to the CSI-RS resource.

[0344] Hereinafter, through illustrations, the antenna ports corresponding to each of the multiple CSI-RS resources determined by the network side device in this embodiment are shown.

[0345] Suppose there are 2 CSI-RS resources among multiple CSI-RS resources, the number of antenna ports corresponding to each CSI-RS resource is 32, the type of CDM group corresponding to each CSI-RS resource is cdm8-FD2-TD4, the number of CDM groups corresponding to each CSI-RS resource is 4, and the number of REs included in each CDM group corresponding to each CSI-RS resource is 8. The resource serial numbers corresponding to the 2 CSI-RS resources are k = 0 and k = 1 respectively. Refer to Figure 7 , Figure 7The antenna port numbers of the antenna ports corresponding to the two CSI-RS resources determined by the network-side device adopting the implementation manner of this embodiment.

[0346] As Figure 7 shown, the antenna port numbers of the multiple antenna ports in the first group corresponding to the CSI-RS resource with k = 0 are 3000, 3001, 3002,..., 3015 in sequence, and the antenna port numbers of the multiple antenna ports in the second group corresponding to the CSI-RS resource with k = 0 are 3032, 3033, 3034,..., 3047 in sequence. The antenna port numbers of the multiple antenna ports in the first group corresponding to the CSI-RS resource with k = 1 are 3016, 3017, 3018,..., 3031 in sequence, and the antenna port numbers of the multiple antenna ports in the second group corresponding to the CSI-RS resource with k = 1 are 3048, 3049, 3050,..., 3063 in sequence. That is, the antenna port numbers of the multiple antenna ports in the first group are consecutive positive integers (3000, 3001, 3002,..., 3015, 3016, 3017, 3018,..., 3031), and the antenna port numbers of the multiple antenna ports in the second group are consecutive positive integers (3032, 3033, 3034,..., 3047, 3048, 3049, 3050,..., 3063).

[0347] In this embodiment, the absolute value of the difference between the smallest antenna port numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one-half of the total number of antenna ports corresponding to the multiple CSI-RS resources. For example, please continue to refer to Figure 7 , the smallest antenna port numbers of the two groups of antenna ports corresponding to the CSI-RS resource with k = 0 are 3000 and 3032 respectively, and the absolute value of their difference is equal to 32. Figure 7 One-half of the total number of antenna ports (64) corresponding to the two CSI-RS resources in

[0348] In this embodiment, the antenna ports corresponding to the CSI-RS resource with k = 0 are different from each other, the antenna ports corresponding to the CSI-RS resource with k = 1 are different from each other, and the antenna ports corresponding to the CSI-RS resource with k = 0 are also different from the antenna ports corresponding to the CSI-RS resource with k = 1.

[0349] After the network-side device determines the antenna ports corresponding to the multiple CSI-RS resources according to the implementation manner of 2.1), the network-side device transmits the CSI-RS to the UE on each antenna port corresponding to the multiple CSI-RS resources.

[0350] The UE receives each CSI-RS sent by the network-side device on each antenna port. The UE determines each antenna port based on each CSI-RS, that is, the UE determines the antenna port to which the REs occupied by each CSI-RS are mapped. The manner in which the UE determines the antenna port numbers of each antenna port is similar to the manner in which the network-side device determines the antenna port corresponding to each of the multiple CSI-RS resources according to the implementation manner in 2.1). Then, the UE generates a CSI report based on each antenna port and the CSI-RS.

[0351] In the above embodiment, by dividing the multiple antenna ports corresponding to each CSI-RS resource into two groups, and the antenna port numbers of the multiple antenna ports in each group are consecutive positive integers, it can better adapt to the single-board antenna scenario and improve the antenna performance in the single-board antenna scenario. The principle of improving the antenna performance in the single-board antenna scenario will be described below.

[0352] 2.2) For each CSI-RS resource, the network-side device determines the antenna port p corresponding to the CSI-RS resource according to the fifth formula to implement the process of determining each antenna port based on the resource configuration information of the multiple CSI-RS resources and / or the resource number of each CSI-RS resource. The fifth formula is:

[0353]

[0354] where δ is a preset constant, k is the resource number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and s, j, L, and N are obtained based on the resource configuration information.

[0355] In this embodiment, the number of antenna ports corresponding to each CSI-RS resource among the multiple CSI-RS resources, the type of the CDM group, and the number of CDM groups are all the same.

[0356] Similar to the above embodiment, δ can be 3000. Of course, during implementation, δ can also take other values according to actual needs. For each CSI-RS resource with a resource number among the multiple CSI-RS resources, the network-side device substitutes the resource number of the CSI-RS resource, s, j, L, and N in the resource configuration information into the fifth formula, calculates the antenna port numbers of each antenna port corresponding to each CSI-RS resource. The substitution calculation method can refer to the relevant description above until calculating the antenna ports to which each RE in each CDM group is mapped. The network-side device then determines the respective antenna ports corresponding to the CSI-RS resource.

[0357] The effects of the antenna ports corresponding to the multiple CSI-RS resources determined by the network-side device in this embodiment are the same as those of the antenna ports corresponding to the multiple CSI-RS resources determined by the network-side device in the implementation of 2.1), and reference can be made to Figure 7 , such as Figure 7 As shown, the antenna port numbers of the multiple antenna ports in the first group corresponding to the CSI-RS resource with k = 0 are 3000, 3001, 3002,..., 3015 in sequence, and the antenna port numbers of the multiple antenna ports in the second group corresponding to the CSI-RS resource with k = 0 are 3032, 3033, 3034,..., 3047 in sequence. The antenna port numbers of the multiple antenna ports in the first group corresponding to the CSI-RS resource with k = 1 are 3016, 3017, 3018,..., 3031 in sequence, and the antenna port numbers of the multiple antenna ports in the second group corresponding to the CSI-RS resource with k = 1 are 3048, 3049, 3050,..., 3063 in sequence. That is, the antenna port numbers of the multiple antenna ports in the first group are consecutive positive integers (3000, 3001, 3002,..., 3015, 3016, 3017, 3018,..., 3031), and the antenna port numbers of the multiple antenna ports in the second group are consecutive positive integers (3032, 3033, 3034,..., 3047, 3048, 3049, 3050,..., 3063).

[0358] Similarly, in this embodiment, the absolute value of the difference between the smallest antenna port numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one-half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0359] In this embodiment, the antenna ports corresponding to the CSI-RS resource with k = 0 are different from each other, the antenna ports corresponding to the CSI-RS resource with k = 1 are different from each other, and the antenna ports corresponding to the CSI-RS resource with k = 0 are also different from the antenna ports corresponding to the CSI-RS resource with k = 1.

[0360] After the network-side device determines the antenna ports corresponding to the multiple CSI-RS resources according to the implementation manner of 2.2), the network-side device transmits the CSI-RS to the UE on each antenna port corresponding to the multiple CSI-RS resources.

[0361] The UE receives each CSI-RS sent by the network-side device on each antenna port. The UE determines each antenna port based on each CSI-RS, that is, the UE determines the antenna port to which the REs occupied by each CSI-RS are mapped. The way for the UE to determine the antenna port numbers of each antenna port is similar to the way for the network-side device to determine the antenna ports corresponding to multiple CSI-RS resources according to the implementation manner in 2.2). Then, the UE generates a CSI report based on each antenna port and CSI-RS.

[0362] In the above embodiments, by dividing the multiple antenna ports corresponding to each CSI-RS resource into two groups, and the antenna port numbers of the multiple antenna ports in each group are consecutive positive integers, it can better adapt to the single-board antenna scenario and improve the antenna performance in the single-board antenna scenario.

[0363] Next, the preferred applicable scenarios of the above first implementation manner (that is, the multiple antenna ports corresponding to each CSI-RS resource are not grouped) and the above second implementation manner (that is, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups) are introduced.

[0364] In the existing NR system, the structure of the Type I single-board codebook implies that the antenna port numbers of the antenna ports corresponding to the CSI-RS resources are numbered continuously in one polarization direction and then continue to be numbered continuously in the other polarization direction. For example, please refer to Figure 8 , Figure 8 which is a schematic diagram of the antenna port numbers of a 64-antenna port, Figure 8 where the antenna port numbers of each antenna port are 3000 + Figure 8 the numbers in

[0365] For the single-board antenna scenario, if the implementation manner in 1) above is adopted, all the antenna ports corresponding to each CSI-RS resource in the multiple CSI-RS resources correspond to the same polarization direction. In this case, if a certain CSI-RS resource in the multiple CSI-RS resources is configured for the UE to use, and the UE selects the optimal PMI from the codebook with a dual-polarization design based on the CSI-RS in the same polarization direction, since the codebook with a dual-polarization design may not match the measurement channel of a single polarization, there may be a PMI mismatch, resulting in a decline in the antenna performance.

[0366] If the implementation method in 2) above is adopted, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups. For each CSI-RS resource among the multiple CSI-RS resources, half of all the antenna ports corresponding to it correspond to one polarization direction, and the other half correspond to the other polarization direction. In this way, if a certain CSI-RS resource among the multiple CSI-RS resources is configured for the UE to use, the UE selects the optimal PMI from the codebook with dual-polarization design based on the CSI-RS in two polarization directions. The codebook with dual-polarization design matches the dual-polarization measurement channel. Therefore, the implementation method in 2) above can be better applied to the single-board antenna scenario, improving the antenna performance in the single-board antenna scenario. In the single-board antenna scenario, the implementation method in 2) above can achieve the sharing of the CSI-RS resources corresponding to a maximum of 32 antenna ports in the existing system.

[0367] The structure of the existing NR system Type I multi-board codebook implies that half of the antenna ports of each antenna panel are in one polarization direction, and the other half are in the other polarization direction. The antenna port numbers of the antenna ports corresponding to the CSI-RS resources are consecutively numbered in the order of one polarization direction of one antenna panel first, then the other polarization direction, and then one polarization direction of another antenna panel and then the other polarization direction. For example, for 2 antenna panels, please refer to Figure 9 , Figure 9 which is a schematic diagram of the antenna port numbers of 32 antenna ports in 2 antenna panels. Figure 9 The antenna port numbers of each antenna port in it are 3000 + Figure 9 the numbers in

[0368] For the multi-board antenna scenario, if the implementation method in 1) above is adopted, then for each CSI-RS resource among the multiple CSI-RS resources, half of all the antenna ports corresponding to it correspond to one polarization direction, and the other half correspond to the other polarization direction. In this way, if a certain CSI-RS resource among the multiple CSI-RS resources is configured for the UE to use, the UE selects the optimal PMI from the codebook with dual-polarization design based on the CSI-RS in two polarization directions. The codebook with dual-polarization design matches the dual-polarization measurement channel.

[0369] If the implementation manner in 2) above is adopted, all the antenna ports corresponding to each CSI-RS resource among multiple CSI-RS resources are of the same polarization direction. In this case, if a certain CSI-RS resource among each CSI-RS resource in multiple CSI-RS resources is configured for a UE to use, the UE selects the optimal PMI from the codebook of the dual-polarization design based on the CSI-RS of the same polarization direction. Since the codebook of the dual-polarization design may not match the measurement channel of the single polarization, PMI mismatch may occur, resulting in a decline in the performance of the antenna. Therefore, the implementation manner in 1) above is applicable to the multi-panel antenna scenario. In the multi-panel antenna scenario, the implementation manner in 1) above can achieve the sharing of CSI-RS resources corresponding to a maximum of 32 antenna ports in the existing system.

[0370] In addition, it should be noted that in the embodiments of the present application, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, rather than four groups or eight groups. This is because there are only two polarization directions for the antenna ports. Dividing the multiple antenna ports corresponding to each CSI-RS resource into two groups is to ensure that half of the antenna ports corresponding to each CSI-RS resource are of one polarization direction, and the corresponding other half of the antenna ports are of the other polarization direction, so as to adapt to the single-panel antenna scenario and improve the antenna performance.

[0371] In some of the above embodiments, it is mentioned that the process for the network-side device to determine the antenna ports corresponding to multiple CSI-RS resources needs to be implemented by using the resource numbers of the respective CSI-RS resources. Hereinafter, an exemplary description will be given of the manner in which the network-side device determines the resource numbers of the respective CSI-RS resources.

[0372] In a possible implementation manner, the information transmission method of this embodiment further includes the following step A1:

[0373] Step A1, the network-side device determines the resource numbers of the respective CSI-RS resources according to the resource IDs of the respective CSI-RS resources.

[0374] Optionally, the network-side device may sort in ascending order or descending order according to the resource IDs of the respective CSI-RS resources to obtain a sorted sequence, and the network-side device uses the position number of the CSI-RS resource in the sorted sequence as the resource number of the CSI-RS resource to implement the process of step A1.

[0375] That is, the network-side device arranges multiple CSI-RS resources in ascending order of their resource IDs. In this way, in ascending order of the resource IDs, the resource numbers k corresponding to the respective CSI-RS resources are successively 0, 1,..., K - 1.

[0376] Alternatively, the network-side device arranges multiple CSI-RS resources in descending order of their resource IDs. In this way, in descending order of the resource IDs, the resource sequence numbers k corresponding to the respective CSI-RS resources are successively 0, 1, …, K−1.

[0377] Optionally, the network-side device may also input the resource IDs of the respective CSI-RS resources into a pre-trained artificial intelligence model, and predict and output the resource sequence numbers of the respective CSI-RS resources through the artificial intelligence model. Here, the specific implementation manner of step A1 is not limited.

[0378] In another possible implementation manner, the information transmission method of this embodiment further includes the following step A2:

[0379] Step A2: The network-side device determines the resource sequence numbers of the respective CSI-RS resources based on the frequency-domain positions and time-domain positions occupied by the respective CSI-RS resources.

[0380] In an exemplary implementation manner of step A2, the network-side device may first sort the respective CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to the respective CSI-RS resources in the frequency domain, and then continue to sort the respective CSI-RS resources in ascending order of the slot index corresponding to the respective CSI-RS resources in the time domain, to obtain a first sorting result, and determine the resource sequence numbers of the respective CSI-RS resources according to the first sorting result. That is, the network-side device numbers the respective CSI-RS resources in order of first the frequency domain (ascending CRB index and subcarrier index) and then the time domain (ascending slot index), and the resource sequence numbers k of the respective CSI-RS resources are successively 0, 1, …, K−1.

[0381] In another exemplary implementation manner of step A2, the network-side device may also first sort the respective CSI-RS resources in ascending order of the slot index corresponding to the respective CSI-RS resources in the time domain, and then continue to sort the respective CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to the respective CSI-RS resources in the frequency domain, to obtain a second sorting result, and determine the resource sequence numbers of the respective CSI-RS resources according to the second sorting result. That is, the network-side device numbers the respective CSI-RS resources in order of first the time domain (ascending slot index) and then the frequency domain (ascending CRB index and subcarrier index), and the resource sequence numbers k of the respective CSI-RS resources are successively 0, 1, …, K−1.

[0382] The network-side device transmits CSI-RS to the UE on the respective antenna ports corresponding to the determined multiple CSI-RS resources.

[0383] The UE receives each CSI-RS sent by the network-side device on each antenna port. The UE determines each antenna port based on each CSI-RS, which is similar to the process of the network-side device determining the antenna port corresponding to each CSI-RS resource. The UE may also need to use the resource sequence number of each CSI-RS resource to determine the antenna port to which the RE mapped by each CSI-RS is occupied. Among them, the method for the UE to determine the resource sequence number of each CSI-RS resource is similar to the method for the above-mentioned network-side device to determine the resource sequence number of each CSI-RS resource. After the UE determines each antenna port, the UE generates a CSI report based on each antenna port and CSI-RS.

[0384] In this way, after determining the resource sequence number of each CSI-RS resource according to any of the above embodiments, the network-side device further determines each antenna port according to the resource configuration information of multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource, so as to implement CSI-RS resources corresponding to more than 32 antenna ports for channel measurement, thereby being able to support the channel measurement process in a large-scale MIMO scenario.

[0385] Based on any of the above embodiments, referring to Figure 10 , the information transmission method in this embodiment further includes Figure 10 step 1001 shown in

[0386] Step 1001, the network-side device sends the number of ports of the CSI-RS resource for channel measurement associated with the CSI report to the UE.

[0387] Among them, the number of ports is equal to the total number of antenna ports corresponding to multiple CSI-RS resources.

[0388] Exemplarily, the network-side device can calculate the number of ports X using the following formula 2:

[0389]

[0390] Among them, k is the resource sequence number of the CSI-RS resource, K is the number of resources of multiple CSI-RS resources, and N k is the number of antenna ports corresponding to the kth CSI-RS resource among multiple CSI-RS resources.

[0391] In the embodiments of the present application, the number of ports X of the CSI-RS resource for channel measurement can be obtained by any of the following methods:

[0392] Method 1: The number of ports is configured through a preset field in the configuration information of the CSI report.

[0393] Exemplarily, the number of ports X = 2 * N1 * N2 can be determined by (N1, N2) included in the CodebookConfig in the CSI report configured by the high-layer parameter CSI-ReportConfig.

[0394] Among them, N1 represents the number of antenna ports in the first dimension in one polarization direction of the physical antenna port; N2 represents the number of antenna ports in the second dimension in one polarization direction of the physical antenna port.

[0395] Exemplarily, (N1, N2) and the corresponding (O1, O2) support at least one of the following configurations, where O1 is the oversampling factor in the first dimension in one polarization direction of the physical antenna port, and O2 is the oversampling factor in the second dimension in one polarization direction of the physical antenna port.

[0396]

[0397] Method 2: The number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource for channel measurement associated with the CSI report.

[0398] That is, by adding a high-layer parameter in the resource configuration information of the CSI-RS resource for channel measurement to indicate the number of ports X.

[0399] After the UE receives the number of ports of the CSI-RS resource for channel measurement associated with the CSI report sent by the network-side device, the process for the UE to determine each antenna port according to the CSI-RS can specifically be that the UE determines each antenna port according to the number of ports and the CSI-RS. The indication method of the number of ports is flexible, which can improve the implementation flexibility of the embodiments of this application.

[0400] Based on any of the above embodiments, refer to Figure 11 and the information transmission method of this embodiment further includes Figure 11 the step 1101 shown in

[0401] Step 1101, the network-side device receives the CSI report sent by the UE.

[0402] Among them, the CSI report is generated by the UE based on the successfully received CSI-RS.

[0403] In this embodiment, if the CSI-RS in at least one of the multiple CSI-RS resources cannot be transmitted, for example, due to conflicts in the configured time-frequency resource positions or non-available DL subframes, etc., the UE can also support this channel measurement.

[0404] Exemplarily, in this case, the UE supports at least one of the following CSI report reporting methods:

[0405] 1. The UE generates a CSI report based on the successfully received CSI-RS, and each row of the PMI in the CSI report corresponds one by one to each antenna port corresponding to K' CSI-RS resources, where K' is less than the number of resources K of the above-mentioned multiple CSI-RS resources.

[0406] 2. The UE does not report the current CSI report.

[0407] In other possible implementation manners, if the CSI-RS in at least one of the multiple CSI-RS resources cannot be transmitted, the UE may also not support the current channel measurement.

[0408] The above embodiments give the implementation manners of the information transmission method of the embodiments of the present application in the case where the CSI-RS in at least one of the multiple CSI-RS resources cannot be transmitted, consider various possible situations in the implementation process, and can improve the implementation reliability of the information transmission method of the embodiments of the present application.

[0409] In one embodiment, an information transmission method is provided. This information transmission method is used for the UE. Refer to Figure 12 , and this method includes Figure 12 the steps 1201 and 1202 shown in

[0410] Step 1201, the UE receives the CSI-RS sent by the network side device.

[0411] The CSI-RS is transmitted on each antenna port corresponding to multiple CSI-RS resources. The antenna ports corresponding to each CSI-RS resource are different.

[0412] Step 1202, the UE determines each antenna port according to the CSI-RS, and generates a CSI report according to each antenna port and the CSI-RS.

[0413] In one of the embodiments, the information transmission method of this embodiment further includes the following steps:

[0414] The UE receives the number of ports of the CSI-RS resources for channel measurement associated with the CSI report sent by the network side device, and the number of ports is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources;

[0415] Correspondingly, the UE determines each antenna port according to the CSI-RS, including:

[0416] The UE determines each antenna port according to the number of ports and the CSI-RS.

[0417] In one embodiment, the process by which the UE determines each antenna port based on CSI-RS is implemented through the following steps:

[0418] The UE determines each antenna port based on the resource configuration information of multiple CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource.

[0419] In one embodiment, the antenna port numbers of each antenna port are consecutive positive integers.

[0420] In one embodiment, the process by which the UE determines each antenna port based on the resource configuration information of multiple CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource is implemented through the following steps:

[0421] For each CSI-RS resource, the UE obtains the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information.

[0422] The UE determines each antenna port based on the resource configuration information of multiple CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource.

[0423] In one embodiment, the process by which the UE determines each antenna port based on the resource configuration information of multiple CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource is implemented through the following steps:

[0424] For each CSI-RS resource, the UE determines the antenna port p corresponding to the CSI-RS resource according to the first formula, and the first formula is:

[0425] p = δ + s + j*L + Δp

[0426] Wherein, δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource. s, j, L, and Δp are obtained based on the resource configuration information.

[0427] In one embodiment, the antenna port offset values corresponding to each CSI-RS resource are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or, the antenna port offset values corresponding to each CSI-RS resource are different, and the antenna port offset values corresponding to each CSI-RS resource are related to the resource serial numbers of each CSI-RS resource.

[0428] In one embodiment, the process by which the UE determines each antenna port according to the resource configuration information of multiple CSI-RS resources corresponding to CSI-RS and / or the resource serial number of each CSI-RS resource is implemented through the following steps:

[0429] For each CSI-RS resource, the UE determines the antenna port p corresponding to the CSI-RS resource according to the second formula, and the second formula is:

[0430] p = δ + s + j * L + k * N

[0431] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and s, j, L, and N are obtained based on the resource configuration information.

[0432] In one embodiment, the process by which the UE determines each antenna port according to the resource configuration information of multiple CSI-RS resources corresponding to CSI-RS and / or the resource serial number of each CSI-RS resource is implemented through the following steps, including:

[0433] For each CSI-RS resource, the UE determines the antenna port p corresponding to the CSI-RS resource according to the third formula, and the third formula is:

[0434]

[0435] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the kth CSI-RS resource among multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the ith CSI-RS resource among multiple CSI-RS resources, s k 、j k 、L k and N i are obtained based on the resource configuration information.

[0436] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port numbers of the multiple antenna ports in each group are consecutive positive integers.

[0437] In one embodiment, the absolute value of the difference between the smallest antenna port numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0438] In one embodiment, the process by which the UE determines each antenna port according to the resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or the resource number of each CSI-RS resource is implemented through the following steps:

[0439] For each CSI-RS resource, the UE determines the antenna port p corresponding to the CSI-RS resource according to the fourth formula, and the fourth formula is:

[0440]

[0441] where δ is a preset constant, k is the resource number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and s, j, L, and N are obtained based on the resource configuration information.

[0442] In one embodiment, the process by which the UE determines each antenna port according to the resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or the resource number of each CSI-RS resource is implemented through the following steps:

[0443] For each CSI-RS resource, the UE determines the antenna port p corresponding to the CSI-RS resource according to the fifth formula, and the fifth formula is:

[0444]

[0445] where δ is a preset constant, k is the resource number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and s, j, L, and N are obtained based on the resource configuration information.

[0446] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resources for channel measurement associated with the CSI report.

[0447] In one embodiment, the information transmission method of this embodiment further includes the following steps:

[0448] The UE determines the resource sequence numbers of the CSI-RS resources according to the resource IDs of the CSI-RS resources.

[0449] In one embodiment, the process by which the UE determines the resource sequence numbers of the CSI-RS resources according to the resource IDs of the CSI-RS resources is implemented through the following steps:

[0450] The UE sorts in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorted sequence;

[0451] The UE uses the position sequence number of the CSI-RS resource in the sorted sequence as the resource sequence number of the CSI-RS resource.

[0452] In one embodiment, the information transmission method of this embodiment further includes the following steps:

[0453] The UE determines the resource sequence numbers of the CSI-RS resources based on the frequency-domain positions and time-domain positions occupied by the CSI-RS resources.

[0454] In one embodiment, the process by which the UE determines the resource sequence numbers of the CSI-RS resources based on the frequency-domain positions and time-domain positions occupied by the CSI-RS resources can be implemented through the following steps:

[0455] The UE first sorts the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continues to sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determines the resource sequence numbers of the CSI-RS resources according to the first sorting result; or the UE first sorts the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain, and then continues to sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determines the resource sequence numbers of the CSI-RS resources according to the second sorting result.

[0456] Regarding the relevant limitations and beneficial effects of the information transmission method in the UE, reference can be made to the relevant content of the information transmission method for the network-side device above, which will not be elaborated here.

[0457] Hereinafter, through several examples, several possible implementation manners of the information transmission method according to the embodiments of the present application will be illustrated by way of example.

[0458] Example 1:

[0459] The network-side device configures a CSI report through a high-layer parameter CSI-ReportConfig, where (N1, N2) = (8, 4) included in CSI-ReportConfig, that is, the number of ports X of the CSI-RS resources for channel measurement is 2 * 8 * 4 = 64. There are 2 CSI-RS resources included in the CSI-ResourceConfig for channel measurement associated with this CSI report. The number of antenna ports corresponding to each CSI-RS resource among the 2 CSI-RS resources is 32 (i.e., N = 32), the types of CDM groups corresponding to the 2 CSI-RS resources are both cdm8-FD2-TD4, the number of CDM groups corresponding to the 2 CSI-RS resources is 4 (j = 0, 1, 2, 3), the number of REs included in the CDM groups corresponding to the 2 CSI-RS resources is 8 (s = 0, 1,..., 7), and the antenna port offset values corresponding to the 2 CSI-RS resources are 0 and 32 respectively.

[0460] Based on the resource configuration information of the above 2 CSI-RS resources, the network-side device calculates the antenna port numbers of the 64 antenna ports corresponding to the 2 CSI-RS resources by using the above first formula, that is, the network-side device continuously numbers the 64 antenna ports corresponding to the 2 CSI-RS resources by using the first formula, and finally the network-side device determines the 64 antenna ports corresponding to the 2 CSI-RS resources.

[0461] The correspondence between the REs occupied by the 2 CSI-RS resources in (1 slot, 1 PRB) and each antenna port can be as Figure 4 shown.

[0462] Then, the network-side device transmits the CSI-RS to the UE on each antenna port corresponding to the 2 CSI-RS resources, that is, the network-side device maps the CSI-RS of each antenna port corresponding to the 2 CSI-RS resources to the antenna port with the same antenna port number for transmission.

[0463] The UE receives the CSI-RS transmitted by the network-side device on each antenna port corresponding to the 2 CSI-RS resources.

[0464] Based on the configured (N1, N2) = (8, 4), the UE determines that the number of ports X of the CSI-RS resources for channel measurement is X = 2 * 8 * 4 = 64. Based on the above resource configuration information of 2 CSI-RS resources, the UE consecutively numbers the 64 antenna ports corresponding to the 2 CSI-RS resources using the first formula. Finally, the UE determines the 64 antenna ports corresponding to the 2 CSI-RS resources.

[0465] The UE generates a CSI report based on the CSI-RS transmitted on each antenna port corresponding to the 2 CSI-RS resources, and each row of the PMI in the CSI report corresponds one-to-one with each antenna port corresponding to the 2 CSI-RS resources.

[0466] Example 2:

[0467] The network device configures a CSI report through the high-layer parameter CSI-ReportConfig. Among them, (N1, N2) included in CSI-ReportConfig is (8, 4), that is, the number of ports X of the CSI-RS resources for channel measurement is X = 2 * 8 * 4 = 64. The CSI-ResourceConfig for channel measurement associated with this CSI report includes 2 CSI-RS resources. The number of antenna ports corresponding to each CSI-RS resource in the 2 CSI-RS resources is 32 (i.e., N = 32). The types of CDM groups corresponding to the 2 CSI-RS resources are both cdm8-FD2-TD4. The number of CDM groups corresponding to the 2 CSI-RS resources is 4 (j = 0, 1, 2, 3). The number of REs included in the CDM groups corresponding to the 2 CSI-RS resources is 8 (s = 0, 1,..., 7). The resource IDs of the 2 CSI-RS resources are 1 and 2 respectively.

[0468] The network device arranges the 2 CSI-RS resources in ascending order of their resource IDs to determine their resource sequence numbers k. That is, the resource sequence number k of the CSI-RS resource with resource ID = 1 is k = 0, and the resource sequence number k of the CSI-RS resource with resource ID = 2 is k = 1.

[0469] Based on the above formula 1, the network device calculates the antenna port offset values corresponding to the 2 CSI-RS resources. Among them, the antenna port offset value corresponding to the CSI-RS resource with k = 0 is 0, and the antenna port offset value corresponding to the CSI-RS resource with k = 1 is 32.

[0470] Based on the resource configuration information of the above two CSI-RS resources, the network-side device calculates the antenna port numbers of the 64 antenna ports corresponding to the two CSI-RS resources using the above first formula, that is, the network-side device continuously numbers the 64 antenna ports corresponding to the two CSI-RS resources using the first formula, and finally the network-side device determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0471] The correspondence between the REs occupied by the two CSI-RS resources in (1 slot, 1 PRB) and each antenna port can be as Figure 13 shown.

[0472] Next, the network-side device transmits the CSI-RS on each antenna port corresponding to the two CSI-RS resources to the UE, that is, the network-side device maps the CSI-RS of each antenna port corresponding to the two CSI-RS resources to the antenna port with the same antenna port number for transmission.

[0473] The UE receives the CSI-RS transmitted by the network-side device on each antenna port corresponding to the two CSI-RS resources.

[0474] Based on the configured (N1, N2) = (8, 4), the UE determines that the number of ports of the CSI-RS resource for channel measurement is X = 2 * 8 * 4 = 64. The UE continuously numbers the 64 antenna ports corresponding to the two CSI-RS resources using the first formula based on the above resource configuration information of the two CSI-RS resources, and finally the UE determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0475] The UE generates a CSI report based on the CSI-RS transmitted by the network-side device on each antenna port corresponding to the two CSI-RS resources, and each row of PMI in this CSI report corresponds one-to-one to each antenna port corresponding to the two CSI-RS resources.

[0476] If one of the two CSI-RS resources has a CSI-RS that cannot be transmitted, the UE generates a CSI report based on the CSI-RS successfully received by the network-side device on each antenna port corresponding to one CSI-RS resource, and each row of PMI in this CSI report corresponds one-to-one to each antenna port corresponding to this one CSI-RS resource; or, the UE does not report this CSI report.

[0477] Example 3:

[0478] The network - side device configures a CSI report through the high - layer parameter CSI - ReportConfig. Among them, (N1, N2) = (8, 4) included in CSI - ReportConfig, that is, the number of ports X of the CSI - RS resources for channel measurement is 2 * 8 * 4 = 64. The CSI - ResourceConfig for channel measurement associated with this CSI report contains 2 CSI - RS resources. For each of the 2 CSI - RS resources, the number of antenna ports corresponding to each CSI - RS resource is 32 (i.e., N = 32), the types of CDM groups corresponding to the 2 CSI - RS resources are both cdm8 - FD2 - TD4, the number of CDM groups corresponding to the 2 CSI - RS resources is 4 (j = 0, 1, 2, 3), the number of REs included in the CDM groups corresponding to the 2 CSI - RS resources is 8 (s = 0, 1, …, 7), and the resource IDs of the 2 CSI - RS resources are 1 and 2 respectively.

[0479] The network - side device arranges the 2 CSI - RS resources in ascending order of their resource IDs to determine their resource sequence numbers k. That is, the resource sequence number k of the CSI - RS resource with resource ID = 1 is 0, and the resource sequence number k of the CSI - RS resource with resource ID = 2 is 1.

[0480] Based on the resource configuration information of the above 2 CSI - RS resources, the network - side device calculates the antenna port sequence numbers of the 64 antenna ports corresponding to the 2 CSI - RS resources using the above second formula. That is, the network - side device continuously numbers the 64 antenna ports corresponding to the 2 CSI - RS resources using the second formula, and finally the network - side device determines the 64 antenna ports corresponding to the 2 CSI - RS resources.

[0481] The correspondence between the REs occupied by the 2 CSI - RS resources in (1 slot, 1 PRB) and each antenna port can be as Figure 5 shown. Among them, the resource sequence number k of the CSI - RS resource with resource ID = 1 is 0, and the resource sequence number k of the CSI - RS resource with resource ID = 2 is 1.

[0482] Then, the network - side device transmits CSI - RS on each antenna port corresponding to the 2 CSI - RS resources to the UE. That is, the network - side device maps the CSI - RS of each antenna port corresponding to the 2 CSI - RS resources to the antenna port with the same antenna port sequence number for transmission.

[0483] The UE receives the CSI - RS transmitted by the network - side device on each antenna port corresponding to the 2 CSI - RS resources.

[0484] The UE determines that the number of ports X of the CSI-RS resources for channel measurement is X = 2 * 8 * 4 = 64 based on the configured (N1, N2) = (8, 4). The UE consecutively numbers the 64 antenna ports corresponding to the 2 CSI-RS resources using the second formula based on the above resource configuration information of the 2 CSI-RS resources. Finally, the UE determines the 64 antenna ports corresponding to the 2 CSI-RS resources.

[0485] The UE generates a CSI report based on the CSI-RS transmitted on the 64 antenna ports corresponding to the 2 CSI-RS resources, and each row of the PMI in this CSI report corresponds one-to-one with the 64 antenna ports corresponding to the 2 CSI-RS resources.

[0486] Example 4:

[0487] The network device configures a CSI report through the high-layer parameter CSI-ReportConfig. The preset field X in the resource configuration information of the CSI-RS resources for channel measurement associated with this CSI report is configured as X = 64 (X indicates the total number of antenna ports corresponding to multiple CSI-RS resources for channel measurement), and CSI-ResourceConfig contains 3 CSI-RS resources. The number of antenna ports corresponding to each CSI-RS resource among the 3 CSI-RS resources is 32, 16, and 16 respectively.

[0488] The network device determines the resource sequence numbers k of the 3 CSI-RS resources based on the frequency-domain position and time-domain position occupied by each of the 3 CSI-RS resources. Among them, the network device first sorts the 3 CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to the 3 CSI-RS resources in the frequency domain, and then continues to sort the 3 CSI-RS resources in ascending order of the slot index corresponding to the 3 CSI-RS resources in the time domain, and determines that the resource sequence numbers of the 3 CSI-RS resources are 0, 1, 2 in sequence, that is, the network device numbers the resource sequence numbers of the 3 CSI-RS resources in the order of first frequency domain (ascending CRB index and subcarrier index) and then time domain (ascending slot index).

[0489] Based on the above resource configuration information of the 3 CSI-RS resources, the network device calculates the antenna port sequence numbers of the 64 antenna ports corresponding to the 3 CSI-RS resources using the above third formula, that is, the network device consecutively numbers the 64 antenna ports corresponding to the 3 CSI-RS resources using the third formula. Finally, the network device determines the 64 antenna ports corresponding to the 3 CSI-RS resources.

[0490] The correspondence between the REs occupied by 3 CSI-RS resources in (1 slot, 1 PRB) and each antenna port can be as Figure 6 shown.

[0491] Next, the network device transmits the CSI-RS to the UE on each antenna port corresponding to the 3 CSI-RS resources, that is, the network device maps the CSI-RS of each antenna port corresponding to the 3 CSI-RS resources to the antenna port with the same antenna port number for transmission.

[0492] The UE receives the CSI-RS transmitted by the network device on each antenna port corresponding to the 3 CSI-RS resources.

[0493] Based on the configured X = 64, the UE determines that the number of ports of the CSI-RS resources for channel measurement is 64. Based on the above resource configuration information of the 3 CSI-RS resources, the UE continuously numbers the 64 antenna ports corresponding to the 3 CSI-RS resources using the third formula. Finally, the UE determines the 64 antenna ports corresponding to the 3 CSI-RS resources.

[0494] The UE generates a CSI report based on the CSI-RS transmitted by the network device on the 64 antenna ports corresponding to the 3 CSI-RS resources, and each row of PMI in this CSI report corresponds one-to-one with the 64 antenna ports corresponding to the 3 CSI-RS resources.

[0495] Example 5:

[0496] The network device configures a CSI report through the high-layer parameter CSI-ReportConfig. Among them, (N1, N2) = (8, 4) included in CSI-ReportConfig, that is, the number of ports X of the CSI-RS resources for channel measurement is 2 * 8 * 4 = 64. The CSI-ResourceConfig for channel measurement associated with this CSI report includes 2 CSI-RS resources. The number of antenna ports corresponding to each CSI-RS resource in the 2 CSI-RS resources is 32 (i.e., N = 32). The types of CDM groups corresponding to the 2 CSI-RS resources are both cdm8-FD2-TD4. The number of CDM groups corresponding to the 2 CSI-RS resources is both 4 (j = 0, 1, 2, 3). The number of REs included in the CDM groups corresponding to the 2 CSI-RS resources is both 8 (s = 0, 1,..., 7). The resource IDs of the 22 CSI-RS resources are 1 and 2 respectively.

[0497] The network-side device arranges the two CSI-RS resources in ascending order of their resource IDs to determine their resource sequence numbers k. That is, for the CSI-RS resource with resource ID = 1, the resource sequence number k = 0, and for the CSI-RS resource with resource ID = 2, the resource sequence number k = 1.

[0498] Based on the resource configuration information of the above two CSI-RS resources, the network-side device uses the above fourth formula or fifth formula to calculate the antenna port sequence numbers of the 64 antenna ports corresponding to the two CSI-RS resources. That is, the network-side device continuously numbers the 64 antenna ports corresponding to the two CSI-RS resources using the fourth formula or fifth formula, and finally the network-side device determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0499] The correspondence between the REs occupied by the two CSI-RS resources in (1 slot, 1 PRB) and each antenna port can be as Figure 7 shown, where for the CSI-RS resource with resource ID = 1, the resource sequence number k = 0, and for the CSI-RS resource with resource ID = 2, the resource sequence number k = 1.

[0500] Next, the network-side device transmits the CSI-RS on each antenna port corresponding to the two CSI-RS resources to the UE. That is, the network-side device maps the CSI-RS of each antenna port corresponding to the two CSI-RS resources to the antenna port with the same antenna port sequence number for transmission.

[0501] The UE receives the CSI-RS transmitted by the network-side device on each antenna port corresponding to the two CSI-RS resources.

[0502] Based on the configured (N1, N2) = (8, 4), the UE determines that the number of ports of the CSI-RS resource for channel measurement X = 2 * 8 * 4 = 64. Based on the above resource configuration information of the two CSI-RS resources, the UE continuously numbers the 64 antenna ports corresponding to the two CSI-RS resources using the fourth formula or fifth formula, and finally the UE determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0503] The UE generates a CSI report based on the CSI-RS transmitted by the network-side device on the 64 antenna ports corresponding to the two CSI-RS resources, and each row of the PMI in this CSI report corresponds one-to-one with the 64 antenna ports corresponding to the two CSI-RS resources.

[0504] It should be understood that although the various steps in the above flowchart are shown in sequence according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise clearly stated in this document, there is no strict order limit for the execution of these steps, and these steps can be executed in other orders. Moreover, at least a part of the steps in the above flowchart may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or steps or stages in other steps.

[0505] In one embodiment, as Figure 14 shown, an information transmission device for a network-side device is provided, and the device includes:

[0506] A determination module 1401, configured to determine the antenna port corresponding to each of a plurality of CSI-RS resources, and the antenna port corresponding to each CSI-RS resource is different;

[0507] A transmission module 1402, configured to transmit CSI-RS to a UE on each antenna port corresponding to the plurality of CSI-RS resources, and the CSI-RS is used for the UE to generate a CSI report based on the CSI-RS.

[0508] In one embodiment, the transmission module 1402 is further configured to send the number of ports of the CSI-RS resource for channel measurement associated with the CSI report to the UE, and the number of ports is equal to the total number of antenna ports corresponding to the plurality of CSI-RS resources.

[0509] In one embodiment, the determination module 1401 is specifically configured to determine each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and / or the resource serial number of each CSI-RS resource.

[0510] In one embodiment, the antenna port numbers of each of the antenna ports are consecutive positive integers.

[0511] In one embodiment, the determination module 1401 is specifically configured to, for each CSI-RS resource, obtain the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information; and determine each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource.

[0512] In one embodiment, the determining module 1401 is specifically configured to, for each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0513] p = δ + s + j * L + Δp

[0514] where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0515] In one embodiment, the antenna port offset values corresponding to the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or, the antenna port offset values corresponding to the CSI-RS resources are different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource serial number of each CSI-RS resource.

[0516] In one embodiment, the determining module 1401 is specifically configured to, for each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0517] p = δ + s + j * L + k * N

[0518] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0519] In one embodiment, the determining module 1401 is specifically configured to, for each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to a third formula, where the third formula is:

[0520]

[0521] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the k-th CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the i-th CSI-RS resource among the multiple CSI-RS resources, and the s k 、j k 、L k and N i are obtained based on the resource configuration information.

[0522] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0523] In one embodiment, the absolute value of the difference between the smallest antenna port serial numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0524] In one embodiment, the determining module 1401 is specifically configured to, for each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to the fourth formula, and the fourth formula is:

[0525]

[0526] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0527] In one embodiment, the determining module 1401 is specifically configured to, for each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to the fifth formula, and the fifth formula is:

[0528]

[0529] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K-1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L-1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L-1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0530] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

[0531] In one embodiment, the determining module 1401 is further configured to determine the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

[0532] In one embodiment, the determining module 1401 is specifically configured to sort in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorting sequence; and use the position serial number of the CSI-RS resource in the sorting sequence as the resource serial number of the CSI-RS resource.

[0533] In one embodiment, the determining module 1401 is further configured to determine the resource serial number of each CSI-RS resource based on the frequency-domain position and time-domain position occupied by each CSI-RS resource.

[0534] In one embodiment, the determining module 1401 is specifically configured to first sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource serial number of each CSI-RS resource according to the first sorting result; or first sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource serial number of each CSI-RS resource according to the second sorting result.

[0535] In one embodiment, the apparatus further comprises:

[0536] a receiving module, configured to receive the CSI report sent by the UE, where the CSI report is generated by the UE based on successfully received CSI-RS.

[0537] For the specific definition of the information transmission apparatus for the network-side device, reference may be made to the definition of the information transmission method for the network-side device in the foregoing text, which will not be elaborated herein. Each module in the foregoing information transmission apparatus may be implemented in whole or in part by software, hardware, and their combination. The foregoing modules may be embedded in or independent of the processor in the network-side device in the form of hardware, or may be stored in the memory in the network-side device in the form of software, so as to facilitate the processor to call and execute the operations corresponding to the foregoing modules.

[0538] In one embodiment, as Figure 15 shown, an information transmission apparatus for a UE is provided, and the apparatus comprises:

[0539] a receiving module 1501, configured to receive the CSI-RS sent by the network-side device, where the CSI-RS is transmitted on each antenna port corresponding to a plurality of CSI-RS resources, and the antenna ports corresponding to each CSI-RS resource are different;

[0540] a processing module 1502, configured to determine each of the antenna ports according to the CSI-RS, and generate a CSI report according to each of the antenna ports and the CSI-RS.

[0541] In one embodiment, the apparatus further comprises:

[0542] a receiving module, configured to receive the number of ports of the CSI-RS resource for channel measurement associated with the CSI report sent by the network-side device, where the number of ports is equal to the total number of antenna ports corresponding to the plurality of CSI-RS resources;

[0543] The processing module 1502 is specifically configured to determine each of the antenna ports according to the number of ports and the CSI-RS.

[0544] In one embodiment, the processing module 1502 is specifically configured to determine each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource.

[0545] In one embodiment, the antenna port numbers of each of the antenna ports are consecutive positive integers.

[0546] In one embodiment, the processing module 1502 is specifically configured to, for each of the CSI-RS resources, obtain the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information; and determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset value corresponding to each of the CSI-RS resources.

[0547] In one embodiment, the processing module 1502 is specifically configured to, for each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0548] p = δ + s + j * L + Δp

[0549] where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0550] In one embodiment, the antenna port offset values corresponding to each of the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or, the antenna port offset values corresponding to each of the CSI-RS resources are different, and the antenna port offset value corresponding to each of the CSI-RS resources is related to the resource serial number of each of the CSI-RS resources.

[0551] In one embodiment, the processing module 1502 is specifically configured to, for each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0552] p = δ + s + j * L + k * N

[0553] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0554] In one embodiment, the processing module 1502 is specifically configured to, for each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to the third formula, where the third formula is:

[0555]

[0556] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the k-th CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the i-th CSI-RS resource among the multiple CSI-RS resources, and the s k , j k , L k and N i are obtained based on the resource configuration information.

[0557] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0558] In one embodiment, the absolute value of the difference between the smallest antenna port serial numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0559] In one embodiment, the processing module 1502 is specifically configured to, for each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to the fourth formula, where the fourth formula is:

[0560]

[0561] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0562] In one embodiment, the processing module 1502 is specifically configured to, for each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to the fifth formula, and the fifth formula is:

[0563]

[0564] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0565] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

[0566] In one embodiment, the processing module 1502 is further configured to determine the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

[0567] In one embodiment, the processing module 1502 is further specifically configured to sort in ascending order or descending order according to the resource IDs of the CSI-RS resources to obtain a sorting sequence; and use the position serial number of the CSI-RS resource in the sorting sequence as the resource serial number of the CSI-RS resource.

[0568] In one embodiment, the processing module 1502 is further configured to determine the resource serial number of each CSI-RS resource based on the frequency domain position and time domain position occupied by each CSI-RS resource.

[0569] In one embodiment, the processing module 1502 is further specifically configured to first sort all the CSI-RS resources in the frequency domain in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource, and then continue to sort all the CSI-RS resources in the time domain in ascending order according to the slot index corresponding to each CSI-RS resource to obtain a first sorting result, and determine the resource serial numbers of all the CSI-RS resources according to the first sorting result; or first sort all the CSI-RS resources in the time domain in ascending order according to the slot index corresponding to each CSI-RS resource, and then continue to sort all the CSI-RS resources in the frequency domain in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource to obtain a second sorting result, and determine the resource serial numbers of all the CSI-RS resources according to the second sorting result.

[0570] For the specific limitations on the information transmission device for the UE, reference can be made to the limitations on the information transmission method for the UE in the foregoing, which will not be elaborated herein. Each module in the foregoing information transmission device can be implemented in whole or in part by software, hardware, and their combination. Each of the foregoing modules can be embedded in the processor in the UE in hardware form or independent of the processor, or stored in the memory in the UE in software form, so as to facilitate the processor to call and execute the operations corresponding to each of the foregoing modules.

[0571] Figure 16 FIG. 7 is a schematic structural diagram of a network-side device provided by an embodiment of the present application. The network-side device may include a processor 1600, a transceiver 1610, and a memory 1620. The transceiver 1610 is configured to receive and send data under the control of the processor 1600. The memory 1620 is configured to store a computer program.

[0572] Among them, in Figure 16 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by the processor 1600 and the memory represented by the memory 1620 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be further described herein. The bus interface provides an interface.

[0573] The transceiver 1610 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 cables, etc. The processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1620 may store data used by the processor 1600 when performing operations.

[0574] The processor 1600 can 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 1600 can also adopt a multi-core architecture.

[0575] The processor 1600 is used to execute the following steps according to the obtained executable instructions by calling the computer program stored in the memory 1620:

[0576] Determine the antenna ports corresponding to each of the multiple CSI-RS resources, where the antenna ports corresponding to each CSI-RS resource are different;

[0577] Control the transceiver to transmit CSI-RS to the UE on the respective antenna ports corresponding to the multiple CSI-RS resources, where the CSI-RS is used for the UE to generate a CSI report based on the CSI-RS.

[0578] In one embodiment, the processor 1600 is used to read the computer program in the memory 1620 and further perform the following operations:

[0579] Control the transceiver 1610 to send the number of ports of the CSI-RS resource for channel measurement associated with the CSI report to the UE, where the number of ports is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0580] In one embodiment, the processor 1600 is used to read the computer program in the memory 1620 and specifically perform the following operations:

[0581] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and / or the resource serial number of each CSI-RS resource.

[0582] In one embodiment, the antenna port numbers of each of the antenna ports are consecutive positive integers.

[0583] In one embodiment, the processor 1600 is used to read the computer program in the memory 1620 and specifically perform the following operations:

[0584] For each CSI-RS resource, obtain the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0585] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset values corresponding to each of the CSI-RS resources.

[0586] In one embodiment, the processor 1600 is configured to read a computer program in the memory 1620 and specifically perform the following operations:

[0587] For each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0588] p = δ + s + j * L + Δp

[0589] where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0590] In one embodiment, the antenna port offset values corresponding to each of the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0591] the antenna port offset values corresponding to each of the CSI-RS resources are different, and the antenna port offset value corresponding to each of the CSI-RS resources is related to the resource serial number of each of the CSI-RS resources.

[0592] In one embodiment, the processor 1600 is configured to read a computer program in the memory 1620 and specifically perform the following operations:

[0593] For each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0594] p = δ + s + j * L + k * N

[0595] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0596] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0597] For each of the CSI-RS resources, according to the third formula, determine the antenna port p corresponding to the CSI-RS resource, and the third formula is:

[0598]

[0599] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the kth CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the ith CSI-RS resource among the multiple CSI-RS resources, and the s k 、j k 、L k and N i are obtained based on the resource configuration information.

[0600] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0601] In one embodiment, the absolute value of the difference between the smallest antenna port serial numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0602] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0603] For each of the CSI-RS resources, according to the fourth formula, determine the antenna port p corresponding to the CSI-RS resource, where the fourth formula is:

[0604]

[0605] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K-1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L-1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L-1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0606] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0607] For each of the CSI-RS resources, according to the fifth formula, determine the antenna port p corresponding to the CSI-RS resource, where the fifth formula is:

[0608]

[0609] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K-1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L-1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L-1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0610] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

[0611] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and further perform the following operations:

[0612] Determine the resource serial numbers of the CSI-RS resources according to the resource IDs of the CSI-RS resources.

[0613] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0614] Sort in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorted sequence;

[0615] Use the position serial number of the CSI-RS resource in the sorted sequence as the resource serial number of the CSI-RS resource.

[0616] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and further perform the following operations:

[0617] Determine the resource serial numbers of the CSI-RS resources based on the frequency-domain positions and time-domain positions occupied by the CSI-RS resources.

[0618] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0619] First, sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource serial numbers of the CSI-RS resources according to the first sorting result; or,

[0620] First, sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource serial numbers of the CSI-RS resources according to the second sorting result.

[0621] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and further perform the following operations:

[0622] Control the transceiver 1610 to receive the CSI report sent by the UE, where the CSI report is generated by the UE based on the successfully received CSI-RS.

[0623] Figure 17A schematic structural diagram of a user equipment (UE) provided by an embodiment of the present application. The UE may include a processor 1700, a transceiver 1710, and a memory 1720. The transceiver 1710 is used to receive and send data under the control of the processor 1700, and the memory 1720 is used to store computer programs.

[0624] Among them, in Figure 17 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by the processor 1700 and the memory represented by the memory 1720 are linked together. The bus architecture can also link together 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.

[0625] The transceiver 1710 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 cables, etc. The processor 1700 is responsible for managing the bus architecture and general processing, and the memory 1720 may store data used by the processor 1700 when executing operations.

[0626] The processor 1700 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), and the processor 1700 may also adopt a multi-core architecture.

[0627] The processor 1700 is used to execute the following steps according to the obtained executable instructions by calling the program stored in the memory 1720:

[0628] Control the transceiver 1710 to receive the CSI-RS sent by the network-side device, where the CSI-RS is transmitted by the network-side device on each antenna port corresponding to a plurality of CSI-RS resources, and the antenna ports corresponding to each CSI-RS resource are different;

[0629] Determine each of the antenna ports according to the CSI-RS, and generate a CSI report according to each of the antenna ports and the CSI-RS.

[0630] In one embodiment, the processor 1700 is used to read the computer program in the memory 1720 and further perform the following operations:

[0631] Control the transceiver 1710 to receive the number of ports of the CSI-RS resources for channel measurement associated with the CSI report sent by the network-side device, where the number of ports is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources;

[0632] The processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0633] Determine each of the antenna ports according to the number of ports and the CSI-RS.

[0634] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0635] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource.

[0636] In one embodiment, the antenna port numbers of each of the antenna ports are consecutive positive integers.

[0637] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0638] For each CSI-RS resource, obtain the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0639] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource.

[0640] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0641] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to the first formula, where the first formula is:

[0642] p = δ + s + j * L + Δp

[0643] where δ is a preset constant, s = 0, 1, ..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1, ..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0644] In one embodiment, the antenna port offset values corresponding to the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0645] the antenna port offset values corresponding to the CSI-RS resources are different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource serial number of each CSI-RS resource.

[0646] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0647] For each CSI-RS resource, according to the second formula, determine the antenna port p corresponding to the CSI-RS resource, and the second formula is:

[0648] p = δ + s + j*L + k*N

[0649] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1, ..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1, ..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0650] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0651] For each CSI-RS resource, according to the third formula, determine the antenna port p corresponding to the CSI-RS resource, and the third formula is:

[0652]

[0653] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1, ..., L k - 1, L k is the number of REs included in the CDM group corresponding to the k-th CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1, ..., N k / L k - 1, N i is the number of antenna ports corresponding to the i-th CSI-RS resource among the multiple CSI-RS resources, and the s k 、j k 、L k and N i are obtained based on the resource configuration information.

[0654] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0655] In one embodiment, the absolute value of the difference between the smallest antenna port serial numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0656] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0657] For each CSI-RS resource, according to the fourth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fourth formula is:

[0658]

[0659] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1, ..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1, ..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L and N are obtained based on the resource configuration information.

[0660] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0661] For each of the CSI-RS resources, according to the fifth formula, determine the antenna port p corresponding to the CSI-RS resource, where the fifth formula is:

[0662]

[0663] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0664] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

[0665] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and further perform the following operations:

[0666] Determine the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

[0667] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0668] Sort in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorted sequence;

[0669] Use the position serial number of the CSI-RS resource in the sorted sequence as the resource serial number of the CSI-RS resource.

[0670] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and further perform the following operations:

[0671] Determine the resource serial number of each CSI-RS resource based on the frequency domain position and time domain position occupied by each CSI-RS resource.

[0672] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0673] First, sort each of the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort each of the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource serial numbers of each of the CSI-RS resources according to the first sorting result; or,

[0674] First, sort each of the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort each of the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource serial numbers of each of the CSI-RS resources according to the second sorting result.

[0675] In one embodiment, an information transmission system is provided, including Figure 16 the network-side device shown in Figure 17 and the user equipment UE shown in

[0676] The network-side device is used to execute the steps of the method described in any of the embodiments of the above information transmission method for the network-side device, which will not be elaborated here.

[0677] The UE is used to execute the steps of the method described in any of the embodiments of the above information transmission method for the UE, which will not be elaborated here.

[0678] In one embodiment, a computer-readable storage medium is provided. The computer-readable storage medium can be any available medium or data storage device that can be accessed by a 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 CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSD)).

[0679] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0680] Determine the antenna ports corresponding to each of the multiple CSI-RS resources, and each of the CSI-RS resources corresponds to a different antenna port;

[0681] Transmit CSI-RS on each antenna port corresponding to the multiple CSI-RS resources, where the CSI-RS is used for the UE to generate a CSI report based on the CSI-RS.

[0682] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0683] Send the number of ports of the CSI-RS resources for channel measurement associated with the CSI report to the UE, where the number of ports is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0684] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0685] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and / or the resource serial number of each CSI-RS resource.

[0686] In one embodiment, the antenna port numbers of each of the antenna ports are consecutive positive integers.

[0687] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0688] For each CSI-RS resource, obtain the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0689] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource.

[0690] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0691] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to the first formula, where the first formula is:

[0692] p = δ + s + j * L + Δp

[0693] where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0694] In one embodiment, the antenna port offset values corresponding to each of the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two of the CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0695] the antenna port offset values corresponding to each of the CSI-RS resources are different, and the antenna port offset value corresponding to each of the CSI-RS resources is related to the resource serial number of each of the CSI-RS resources.

[0696] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0697] For each of the CSI-RS resources, according to the second formula, determine the antenna port p corresponding to the CSI-RS resource, and the second formula is:

[0698] p = δ + s + j * L + k * N

[0699] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0700] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0701] For each of the CSI-RS resources, according to the third formula, determine the antenna port p corresponding to the CSI-RS resource, and the third formula is:

[0702]

[0703] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the kth CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N iis the number of antenna ports corresponding to the i-th CSI-RS resource among the multiple CSI-RS resources, where s k , j k , L k and N i are obtained based on the resource configuration information.

[0704] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port numbers of the multiple antenna ports in each group are consecutive positive integers.

[0705] In one embodiment, the absolute value of the difference between the smallest antenna port numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0706] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0707] For each CSI-RS resource, according to the fourth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fourth formula is:

[0708]

[0709] where δ is a preset constant, k is the resource number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0710] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0711] For each CSI-RS resource, according to the fifth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fifth formula is:

[0712]

[0713] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K-1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L-1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L-1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0714] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

[0715] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0716] Determine the resource serial numbers of the CSI-RS resources according to the resource IDs of the CSI-RS resources.

[0717] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0718] Sort in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorted sequence;

[0719] Use the position serial number of the CSI-RS resource in the sorted sequence as the resource serial number of the CSI-RS resource.

[0720] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0721] Determine the resource serial numbers of the CSI-RS resources based on the frequency domain positions and time domain positions occupied by the CSI-RS resources.

[0722] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0723] First, sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource serial numbers of the CSI-RS resources according to the first sorting result; or,

[0724] First, sort all the CSI-RS resources in ascending order of the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort all the CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource serial numbers of all the CSI-RS resources according to the second sorting result.

[0725] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0726] Receive the CSI report sent by the UE, where the CSI report is generated by the UE based on successfully received CSI-RS.

[0727] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0728] Receive the CSI-RS sent by the network side device, where the CSI-RS is transmitted by the network side device on each antenna port corresponding to a plurality of CSI-RS resources, and each antenna port corresponding to each CSI-RS resource is different;

[0729] Determine each antenna port according to the CSI-RS, and generate a CSI report according to each antenna port and the CSI-RS.

[0730] In one of the embodiments, when the computer program is executed by a processor, the following steps are further implemented:

[0731] Receive the number of ports of the CSI-RS resources for channel measurement associated with the CSI report sent by the network side device, where the number of ports is equal to the total number of antenna ports corresponding to the plurality of CSI-RS resources;

[0732] The determining each antenna port according to the CSI-RS includes:

[0733] Determine each antenna port according to the number of ports and the CSI-RS.

[0734] In one of the embodiments, when the computer program is executed by a processor, the following steps are specifically implemented:

[0735] Determine each antenna port according to the resource configuration information of the plurality of CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource.

[0736] In one of the embodiments, the antenna port numbers of each antenna port are consecutive positive integers.

[0737] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0738] For each of the CSI-RS resources, obtain the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0739] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset value corresponding to each of the CSI-RS resources.

[0740] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0741] For each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to the first formula, and the first formula is:

[0742] p = δ + s + j * L + Δp

[0743] Wherein, δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0744] In one embodiment, the antenna port offset values corresponding to each of the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two of the CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0745] The antenna port offset values corresponding to each of the CSI-RS resources are different, and the antenna port offset value corresponding to each of the CSI-RS resources is related to the resource serial number of each of the CSI-RS resources.

[0746] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0747] For each of the CSI-RS resources, determine the antenna port p corresponding to the CSI-RS resource according to the second formula, and the second formula is:

[0748] p = δ + s + j * L + k * N

[0749] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0750] In one embodiment, when the computer program is executed by the processor, the following steps are specifically implemented:

[0751] For each of the CSI-RS resources, according to the third formula, determine the antenna port p corresponding to the CSI-RS resource, and the third formula is:

[0752]

[0753] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the kth CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the ith CSI-RS resource among the multiple CSI-RS resources, and the s k 、j k 、L k and N i are obtained based on the resource configuration information.

[0754] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0755] In one embodiment, the absolute value of the difference between the smallest antenna port serial numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0756] In one embodiment, when the computer program is executed by the processor, the following steps are specifically implemented:

[0757] For each of the CSI-RS resources, according to the fourth formula, determine the antenna port p corresponding to the CSI-RS resource, where the fourth formula is:

[0758]

[0759] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0760] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0761] For each of the CSI-RS resources, according to the fifth formula, determine the antenna port p corresponding to the CSI-RS resource, where the fifth formula is:

[0762]

[0763] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0764] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

[0765] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0766] Determine the resource serial numbers of the CSI-RS resources according to the resource IDs of the CSI-RS resources.

[0767] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0768] Sort in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorted sequence;

[0769] Use the position serial number of the CSI-RS resource in the sorted sequence as the resource serial number of the CSI-RS resource.

[0770] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0771] Based on the frequency-domain positions and time-domain positions occupied by the CSI-RS resources, determine the resource serial numbers of the CSI-RS resources.

[0772] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0773] First, sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource serial numbers of the CSI-RS resources according to the first sorting result; or,

[0774] First, sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource serial numbers of the CSI-RS resources according to the second sorting result.

[0775] In one embodiment, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0776] Determine the antenna ports corresponding to multiple CSI-RS resources, and each CSI-RS resource corresponds to a different antenna port;

[0777] Transmit CSI-RS to the UE on the antenna ports corresponding to the multiple CSI-RS resources, and the CSI-RS is used for the UE to generate a CSI report based on the CSI-RS.

[0778] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0779] Send the number of ports of the CSI-RS resources for channel measurement associated with the CSI report to the UE, where the number of ports is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0780] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0781] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and / or the resource serial number of each CSI-RS resource.

[0782] In one embodiment, the antenna port numbers of each of the antenna ports are consecutive positive integers.

[0783] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0784] For each CSI-RS resource, obtain the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0785] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource.

[0786] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0787] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to the first formula, where the first formula is:

[0788] p = δ + s + j*L + Δp

[0789] where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0790] In one embodiment, the antenna port offset values corresponding to each of the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0791] The antenna port offset values corresponding to each of the CSI-RS resources are different, and the antenna port offset values corresponding to each of the CSI-RS resources are related to the resource sequence numbers of each of the CSI-RS resources.

[0792] In one embodiment, when the computer program is executed by the processor, the following steps are specifically implemented:

[0793] For each of the CSI-RS resources, according to the second formula, determine the antenna port p corresponding to the CSI-RS resource, and the second formula is:

[0794] p = δ + s + j * L + k * N

[0795] where δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0796] In one embodiment, when the computer program is executed by the processor, the following steps are specifically implemented:

[0797] For each of the CSI-RS resources, according to the third formula, determine the antenna port p corresponding to the CSI-RS resource, and the third formula is:

[0798]

[0799] where δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the k-th CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the i-th CSI-RS resource among the multiple CSI-RS resources, and the s k 、j k 、L k and N i are obtained based on the resource configuration information.

[0800] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port numbers of the multiple antenna ports in each group are consecutive positive integers.

[0801] In one embodiment, the absolute value of the difference between the smallest antenna port numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0802] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0803] For each CSI-RS resource, according to the fourth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fourth formula is:

[0804]

[0805] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0806] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0807] For each CSI-RS resource, according to the fifth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fifth formula is:

[0808]

[0809] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0810] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resources for channel measurement associated with the CSI report.

[0811] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0812] According to the resource IDs of the CSI-RS resources, determine the resource sequence numbers of the CSI-RS resources.

[0813] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0814] Sort in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorted sequence;

[0815] Use the position sequence number of the CSI-RS resource in the sorted sequence as the resource sequence number of the CSI-RS resource.

[0816] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0817] Based on the frequency domain positions and time domain positions occupied by the CSI-RS resources, determine the resource sequence numbers of the CSI-RS resources.

[0818] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0819] First, sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource sequence numbers of the CSI-RS resources according to the first sorting result; or,

[0820] First, sort the CSI-RS resources in ascending order according to the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort the CSI-RS resources in ascending order according to the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource sequence numbers of the CSI-RS resources according to the second sorting result.

[0821] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0822] Receive the CSI report sent by the UE, where the CSI report is generated by the UE based on successfully received CSI-RS.

[0823] In one embodiment, a computer program product is provided, including a computer program, which when executed by a processor implements the following steps:

[0824] Receive the CSI-RS sent by the network side device, where the CSI-RS is transmitted by the network side device on each antenna port corresponding to multiple CSI-RS resources, and the antenna ports corresponding to each CSI-RS resource are different;

[0825] Determine each of the antenna ports according to the CSI-RS, and generate a CSI report according to each of the antenna ports and the CSI-RS.

[0826] In one of the embodiments, when the computer program is executed by a processor, the following steps are further implemented:

[0827] Receive the number of ports of the CSI-RS resource for channel measurement associated with the CSI report sent by the network side device, where the number of ports is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources;

[0828] The determining each of the antenna ports according to the CSI-RS includes:

[0829] Determine each of the antenna ports according to the number of ports and the CSI-RS.

[0830] In one of the embodiments, when the computer program is executed by a processor, the following steps are specifically implemented:

[0831] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource.

[0832] In one of the embodiments, the antenna port numbers of each of the antenna ports are consecutive positive integers.

[0833] In one of the embodiments, when the computer program is executed by a processor, the following steps are specifically implemented:

[0834] For each CSI-RS resource, obtain the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0835] Determine each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource.

[0836] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0837] For each of the CSI-RS resources, according to a first formula, determine the antenna port p corresponding to the CSI-RS resource, where the first formula is:

[0838] p = δ + s + j*L + Δp

[0839] where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

[0840] In one embodiment, the antenna port offset values corresponding to each of the CSI-RS resources are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0841] the antenna port offset values corresponding to each of the CSI-RS resources are different, and the antenna port offset value corresponding to each of the CSI-RS resources is related to the resource serial number of each of the CSI-RS resources.

[0842] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0843] For each of the CSI-RS resources, according to a second formula, determine the antenna port p corresponding to the CSI-RS resource, where the second formula is:

[0844] p = δ + s + j*L + k*N

[0845] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0846] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0847] For each of the CSI-RS resources, according to the third formula, determine the antenna port p corresponding to the CSI-RS resource, where the third formula is:

[0848]

[0849] where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1,..., L k - 1, L k is the number of REs included in the CDM group corresponding to the k-th CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1,..., N k / L k - 1, N i is the number of antenna ports corresponding to the i-th CSI-RS resource among the multiple CSI-RS resources, and the s k 、j k 、L k and N i are obtained based on the resource configuration information.

[0850] In one embodiment, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port numbers of the multiple antenna ports in each group are consecutive positive integers.

[0851] In one embodiment, the absolute value of the difference between the smallest antenna port numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0852] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0853] For each of the CSI-RS resources, according to the fourth formula, determine the antenna port p corresponding to the CSI-RS resource, where the fourth formula is:

[0854]

[0855] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0856] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0857] For each of the CSI-RS resources, according to the fifth formula, determine the antenna port p corresponding to the CSI-RS resource, and the fifth formula is:

[0858]

[0859] Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

[0860] In one embodiment, the number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

[0861] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0862] Determine the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

[0863] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0864] Sort in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorted sequence;

[0865] Use the position serial number of the CSI-RS resource in the sorted sequence as the resource serial number of the CSI-RS resource.

[0866] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0867] Based on the frequency-domain positions and time-domain positions occupied by each of the CSI-RS resources, determine the resource sequence numbers of each of the CSI-RS resources.

[0868] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0869] First, sort each of the CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to each of the CSI-RS resources in the frequency domain, and then continue to sort each of the CSI-RS resources in ascending order of the slot index corresponding to each of the CSI-RS resources in the time domain to obtain a first sorting result, and determine the resource sequence numbers of each of the CSI-RS resources according to the first sorting result; or,

[0870] First, sort each of the CSI-RS resources in ascending order of the slot index corresponding to each of the CSI-RS resources in the time domain, and then continue to sort each of the CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to each of the CSI-RS resources in the frequency domain to obtain a second sorting result, and determine the resource sequence numbers of each of the CSI-RS resources according to the second sorting result.

[0871] Figure 18 It is a schematic structural diagram of a chip according to an embodiment of the present application. Figure 18 The chip 1800 shown includes a processor 1810, and the processor 1810 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0872] Optionally, as Figure 18 shown, the chip 1800 may further include a memory 1820. Among them, the processor 1810 can call and run a computer program from the memory 1820 to implement the method in the embodiment of the present application.

[0873] Among them, the memory 1820 may be a separate device independent of the processor 1810 or may be integrated in the processor 1810.

[0874] Optionally, the chip 1800 may further include an input interface 1830. Among them, the processor 1810 can control the input interface 1830 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.

[0875] Optionally, the chip 1800 may further include an output interface 1840. Among them, the processor 1810 may control the output interface 1840 to communicate with other devices or chips. Specifically, it may output information or data to other devices or chips.

[0876] Optionally, the chip 1800 may be applied to the network-side device or UE in the embodiments of the present application, and the chip 1800 may implement the corresponding processes implemented in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0877] It should be understood that the chip 1800 mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip.

[0878] Those of ordinary skill in the art can understand that all or part of the processes of implementing the above-described embodiment methods can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it may include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the embodiments provided in the present application may include at least one of non-volatile and volatile memories. The non-volatile memory may include a read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical memory, etc. The volatile memory may include a random access memory (RAM) or an external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0879] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0880] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An information transmission method, characterized in that, For a network - side device, the method includes: Determine the antenna ports corresponding to each of a plurality of CSI - RS resources, where the antenna ports corresponding to each CSI - RS resource are different; Transmit CSI - RS on each of the antenna ports corresponding to the plurality of CSI - RS resources, where the CSI - RS is used for the UE to generate a CSI report based on the CSI - RS.

2. The method according to claim 1, characterized in that, The method further includes: Send the number of ports of the CSI - RS resources for channel measurement associated with the CSI report to the UE, where the number of ports is equal to the total number of antenna ports corresponding to the plurality of CSI - RS resources.

3. The method according to claim 1, wherein The determining the antenna ports corresponding to each of the plurality of CSI - RS resources includes: Determine each of the antenna ports according to the resource configuration information of the plurality of CSI - RS resources and / or the resource serial number of each CSI - RS resource.

4. The method according to claim 3, wherein The antenna port numbers of each of the antenna ports are consecutive positive integers.

5. The method according to claim 4, characterized in that The determining each of the antenna ports according to the resource configuration information of the plurality of CSI - RS resources and / or the resource serial number of each CSI - RS resource includes: For each CSI - RS resource, obtain the antenna port offset value corresponding to the CSI - RS resource from the resource configuration information; Determine each of the antenna ports according to the resource configuration information of the plurality of CSI - RS resources and the antenna port offset values corresponding to each CSI - RS resource.

6. The method according to claim 5, characterized in that The determining each of the antenna ports according to the resource configuration information of the plurality of CSI - RS resources and the antenna port offset values corresponding to each CSI - RS resource includes: For each CSI - RS resource, determine the antenna port p corresponding to the CSI - RS resource according to a first formula, and the first formula is: p = δ + s + j*L+Δp where δ is a preset constant, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI - RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI - RS resource, Δp is the antenna port offset value corresponding to the CSI - RS resource, and s, j, L, and Δp are obtained based on the resource configuration information.

7. The method according to claim 5, characterized in that, The antenna port offset values corresponding to each of the CSI - RS resources are different, and the difference between the antenna port offset values corresponding to two CSI - RS resources is related to the number of antenna ports corresponding to the two CSI - RS resources; Or, The antenna port offset values corresponding to each of the CSI - RS resources are different, and the antenna port offset value corresponding to each CSI - RS resource is related to the resource serial number of each CSI - RS resource.

8. The method according to claim 4, characterized in that The determining each of the antenna ports according to the resource configuration information of the plurality of CSI - RS resources and / or the resource serial number of each CSI - RS resource includes: For each CSI - RS resource, determine the antenna port p corresponding to the CSI - RS resource according to a second formula, and the second formula is: p = δ + s + j*L + k*N where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1, ..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1, ..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

9. The method according to claim 4, characterized in that Determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and / or the resource serial number of each CSI-RS resource includes: For each of the CSI-RS resources, determining the antenna port p corresponding to the CSI-RS resource according to a third formula, where the third formula is: where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1, ..., L k -1, L k is the number of REs included in the CDM group corresponding to the k-th CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1, ..., N k / L k -1, N i is the number of antenna ports corresponding to the i-th CSI-RS resource among the multiple CSI-RS resources, the s k , j k , L k and N i are obtained based on the resource configuration information.

10. The method according to claim 3, wherein The multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

11. The method according to claim 10, wherein The absolute value of the difference between the smallest antenna port serial numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

12. The method according to claim 10, wherein Determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and / or the resource serial number of each CSI-RS resource includes: For each of the CSI-RS resources, determining the antenna port p corresponding to the CSI-RS resource according to a fourth formula, where the fourth formula is: where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1, ..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1, ..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

13. The method according to claim 10, characterized in that, Determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and / or the resource serial number of each CSI-RS resource includes: For each of the CSI-RS resources, determining the antenna port p corresponding to the CSI-RS resource according to a fifth formula, where the fifth formula is: where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K - 1, K is the number of resources of the multiple CSI-RS resources, s = 0, 1, ..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1, ..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

14. The method according to claim 2, wherein The number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resources for channel measurement associated with the CSI report.

15. The method according to any one of claims 3-13, characterized in that, The method further includes: Determining a resource serial number for each of the CSI-RS resources according to the resource ID of each of the CSI-RS resources.

16. The method according to claim 15, wherein The determining a resource serial number for each of the CSI-RS resources according to the resource ID of each of the CSI-RS resources includes: Sorting in ascending or descending order according to the resource ID of each of the CSI-RS resources to obtain a sorting sequence; Using the position serial number of the CSI-RS resource in the sorting sequence as the resource serial number of the CSI-RS resource.

17. The method according to any one of claims 3-13, characterized in that The method further includes: Determining a resource serial number for each of the CSI-RS resources based on the frequency domain position and time domain position occupied by each of the CSI-RS resources.

18. The method according to claim 17, wherein The determining a resource serial number for each of the CSI-RS resources based on the frequency domain position and time domain position occupied by each of the CSI-RS resources includes: First, sorting the CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to each of the CSI-RS resources in the frequency domain, and then continuing to sort the CSI-RS resources in ascending order of the slot index corresponding to each of the CSI-RS resources in the time domain to obtain a first sorting result, and determining the resource serial number for each of the CSI-RS resources according to the first sorting result; or First, sorting the CSI-RS resources in ascending order of the slot index corresponding to each of the CSI-RS resources in the time domain, and then continuing to sort the CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to each of the CSI-RS resources in the frequency domain to obtain a second sorting result, and determining the resource serial number for each of the CSI-RS resources according to the second sorting result.

19. The method according to claim 1, characterized in that, The method further includes: Receiving a CSI report sent by the UE, where the CSI report is generated by the UE based on successfully received CSI-RS.

20. An information transmission method, characterized in that, For the UE, the method includes: Receiving CSI-RS sent by a network side device, where the CSI-RS is transmitted by the network side device on each antenna port corresponding to a plurality of CSI-RS resources, and the antenna ports corresponding to each CSI-RS resource are different; Determining each of the antenna ports according to the CSI-RS, and generating a CSI report according to each of the antenna ports and the CSI-RS.

21. The method according to claim 20, wherein The method further includes: Receiving the number of ports of the CSI-RS resources for channel measurement associated with the CSI report sent by the network side device, where the number of ports is equal to the total number of antenna ports corresponding to the plurality of CSI-RS resources; The determining each of the antenna ports according to the CSI-RS includes: Determining each of the antenna ports according to the number of ports and the CSI-RS.

22. The method according to claim 20, characterized in that, Determining each of the antenna ports according to the CSI-RS includes: Determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource.

23. The method according to claim 22, wherein The antenna port numbers of each of the antenna ports are consecutive positive integers.

24. The method according to claim 23, characterized in that, The determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource includes: For each CSI-RS resource, obtaining the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information; Determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource.

25. The method according to claim 24, wherein The determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources and the antenna port offset values corresponding to each CSI-RS resource includes: For each CSI-RS resource, determining the antenna port p corresponding to the CSI-RS resource according to a first formula, and the first formula is: p = δ + s + j*L + Δp Wherein, δ is a preset constant, s = 0, 1,..., L-1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L-1, N is the number of antenna ports corresponding to the CSI-RS resource, Δp is the antenna port offset value corresponding to the CSI-RS resource, and the s, j, L, and Δp are obtained based on the resource configuration information.

26. The method according to claim 24, wherein, The antenna port offset values corresponding to each CSI-RS resource are different, and the difference between the antenna port offset values corresponding to two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; Or, The antenna port offset values corresponding to each CSI-RS resource are different, and the antenna port offset values corresponding to each CSI-RS resource are related to the resource serial numbers of each CSI-RS resource.

27. The method according to claim 23, wherein The determining each of the antenna ports according to the resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource includes: For each CSI-RS resource, determining the antenna port p corresponding to the CSI-RS resource according to a second formula, and the second formula is: p = δ + s + j*L + k*N Wherein, δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K-1, K is the number of the multiple CSI-RS resources, s = 0, 1,..., L-1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L-1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

28. The method according to claim 23, wherein Determining each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource, includes: For each CSI-RS resource, determining the antenna port p corresponding to the CSI-RS resource according to a third formula, where the third formula is: where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the number of resources of the multiple CSI-RS resources, s k = 0, 1, ..., L k -1, L k is the number of REs included in the CDM group corresponding to the k-th CSI-RS resource among the multiple CSI-RS resources, j k = 0, 1, ..., N k / L k -1, N i is the number of antenna ports corresponding to the i-th CSI-RS resource among the multiple CSI-RS resources, the s k , j k , L k and N i are obtained based on the resource configuration information.

29. The method according to claim 22, wherein The multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

30. The method according to claim 29, wherein The absolute value of the difference between the smallest antenna port serial numbers of the two groups of antenna ports corresponding to each CSI-RS resource is equal to one half of the total number of antenna ports corresponding to the plurality of CSI-RS resources.

31. The method according to claim 29, wherein Determining each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource, includes: For each CSI-RS resource, determining the antenna port p corresponding to the CSI-RS resource according to a fourth formula, where the fourth formula is: Where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the plurality of CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

32. The method according to claim 29, wherein Determining each of the antenna ports according to the resource configuration information of the plurality of CSI-RS resources corresponding to the CSI-RS and / or the resource serial number of each CSI-RS resource, includes: For each CSI-RS resource, determining the antenna port p corresponding to the CSI-RS resource according to a fifth formula, where the fifth formula is: Where δ is a preset constant, k is the resource serial number of the CSI-RS resource, k = 0, 1,..., K - 1, K is the number of resources of the plurality of CSI-RS resources, s = 0, 1,..., L - 1, L is the number of REs included in the CDM group corresponding to the CSI-RS resource, j = 0, 1,..., N / L - 1, N is the number of antenna ports corresponding to the CSI-RS resource, and the s, j, L, and N are obtained based on the resource configuration information.

33. The method according to claim 21, wherein The number of ports is configured through a preset field in the configuration information of the CSI report, or the number of ports is configured through a preset field in the resource configuration information of the CSI-RS resource associated with the CSI report for channel measurement.

34. The method according to any one of claims 22-32, characterized in that, The method further includes: Determining the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

35. The method according to claim 34, wherein Determining the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource, includes: Sort in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorted sequence; Use the position number of the CSI-RS resource in the sorted sequence as the resource number of the CSI-RS resource.

36. The method according to any one of claims 22-32, characterized in that, The method further includes: Determine the resource numbers of the CSI-RS resources based on the frequency-domain positions and time-domain positions occupied by the CSI-RS resources.

37. The method according to claim 36, characterized in that, The determining the resource numbers of the CSI-RS resources based on the frequency-domain positions and time-domain positions occupied by the CSI-RS resources includes: First, sort the CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain, and then continue to sort the CSI-RS resources in ascending order of the slot index corresponding to each CSI-RS resource in the time domain to obtain a first sorting result, and determine the resource numbers of the CSI-RS resources according to the first sorting result; or First, sort the CSI-RS resources in ascending order of the slot index corresponding to each CSI-RS resource in the time domain, and then continue to sort the CSI-RS resources in ascending order of the CRB index and subcarrier index corresponding to each CSI-RS resource in the frequency domain to obtain a second sorting result, and determine the resource numbers of the CSI-RS resources according to the second sorting result.

38. An information transmission device, characterized in that, For a network-side device, the apparatus includes: A determination module, configured to determine the antenna ports corresponding to multiple CSI-RS resources, where the antenna ports corresponding to each CSI-RS resource are different; A transmission module, configured to transmit CSI-RS to a UE on the antenna ports corresponding to the multiple CSI-RS resources, where the CSI-RS is used for the UE to generate a CSI report based on the CSI-RS.

39. An information transmission device, characterized in that, For a UE, the apparatus includes: A receiving module, configured to receive CSI-RS sent by a network-side device, where the CSI-RS is transmitted by the network-side device on the antenna ports corresponding to multiple CSI-RS resources, and the antenna ports corresponding to each CSI-RS resource are different; A processing module, configured to determine the antenna ports according to the CSI-RS, and generate a CSI report according to the antenna ports and the CSI-RS.

40. A network-side device, characterized in that, Including a memory, a transceiver, and a processor: 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: Determine the antenna ports corresponding to multiple CSI-RS resources, where the antenna ports corresponding to each CSI-RS resource are different; Control the transceiver to transmit CSI-RS to a UE on the antenna ports corresponding to the multiple CSI-RS resources, where the CSI-RS is used for the UE to generate a CSI report based on the CSI-RS.

41. A user equipment, characterized in that, Including a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations: Controlling the transceiver to receive CSI-RS sent by a network-side device, where the CSI-RS is transmitted on each antenna port corresponding to a plurality of CSI-RS resources, and the antenna ports corresponding to each CSI-RS resource are different; Determining each of the antenna ports according to the CSI-RS, and generating a CSI report according to each of the antenna ports and the CSI-RS.

42. An information transmission system, characterized in that, Including a network-side device and a UE; The network-side device is configured to perform the steps of the method according to any one of claims 1 to 19; The UE is configured to perform the steps of the method according to any one of claims 20 to 37.

43. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, the steps of the method according to any one of claims 1 to 37 are implemented.

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