Information transmission method and apparatus, device, system, and computer-readable storage medium

Abstract

The present application relates to an information transmission method and apparatus, a device, a system, and a computer-readable storage medium. The method comprises: a network-side device determining antenna ports respectively corresponding to a plurality of CSI-RS resources, each CSI-RS resource corresponding to a different antenna port; and transmitting CSI-RS's to a UE on the antenna ports corresponding to the plurality of CSI-RS resources, the CSI-RS's being used by the UE to generate a CSI report on the basis of the CSI-RS's.

Description

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

[0001] This application refers to Chinese Patent Application No. 2024100310980, filed on January 8, 2024, entitled “Information Transmission Method, Apparatus, Equipment, System and Computer-Readable Storage Medium,” which is incorporated herein by reference in its entirety. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to an information transmission method, apparatus, device, system and computer-readable storage medium. Background Art

[0003] In communication systems, channel state information (CSI) needs to be obtained using reference signals. In NR (New Radio) systems, the downlink reference signal is the CSI-RS (CSI Reference Signal).

[0004] In related technologies, a network device transmits a CSI-RS to a user equipment (UE) on the antenna port corresponding to a CSI-RS resource. The UE performs channel measurement based on the CSI-RS transmitted by the network device and then feeds back the measurement results to the network device. This allows the network device to understand channel state information and optimize wireless communication quality.

[0005] However, with the rapid development of massive MIMO (Multi-input Multi-output) technology, the above CSI-RS transmission method is not well applicable to the channel measurement process in massive MIMO scenarios. Summary of the Invention

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

[0007] Determine antenna ports corresponding to respective CSI-RS resources, where each CSI-RS resource corresponds to a different antenna port;

[0008] A CSI-RS is transmitted to a UE on each antenna port corresponding to the multiple CSI-RS resources, and the CSI-RS is used by the UE to generate a CSI report based on the CSI-RS.

[0009] 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:

[0010] receiving a 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 each CSI-RS resource corresponds to a different antenna port;

[0011] Each antenna port is determined according to the CSI-RS, and a CSI report is generated according to each antenna port and the CSI-RS.

[0012] 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:

[0013] a determination module, configured to determine antenna ports corresponding to respective CSI-RS resources, wherein each CSI-RS resource corresponds to a different antenna port;

[0014] A transmission module is configured to transmit a CSI-RS to a UE on each antenna port corresponding to the multiple CSI-RS resources, wherein the CSI-RS is used by the UE to generate a CSI report based on the CSI-RS.

[0015] 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:

[0016] a receiving module, configured to receive a 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 each CSI-RS resource corresponds to a different antenna port;

[0017] A processing module is 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.

[0018] 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:

[0019] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0020] Determine antenna ports corresponding to respective CSI-RS resources, where each CSI-RS resource corresponds to a different antenna port;

[0021] The transceiver is controlled to transmit a CSI-RS to a UE on each antenna port corresponding to the plurality of CSI-RS resources, where the CSI-RS is used by the UE to generate a CSI report based on the CSI-RS.

[0022] 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:

[0023] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0024] Controlling the transceiver to receive a 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 each CSI-RS resource corresponds to a different antenna port;

[0025] Each antenna port is determined according to the CSI-RS, and a CSI report is generated according to each antenna port and the CSI-RS.

[0026] In a seventh aspect, an embodiment of the present application provides an information transmission system, which includes a network-side device and a UE.

[0027] The network-side device is configured to execute the steps of the method according to the first aspect above;

[0028] The UE is used to perform the steps of the method described in the second aspect above.

[0029] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in the first or second aspect above.

[0030] In a ninth aspect, an embodiment of the present application provides a computer program product, wherein 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 or second aspect are implemented.

[0031] In a tenth aspect, an embodiment of the present application provides a chip, wherein the chip includes a programmable logic circuit and / or program instructions, and when the chip is executed, the steps of the method described in the first aspect or the second aspect are implemented.

[0032] In the above-mentioned information transmission method, apparatus, device, system and computer-readable storage medium, the network-side device determines the antenna ports corresponding to each of the multiple CSI-RS resources, and each CSI-RS resource corresponds to a different antenna port. Then, the network-side device transmits the CSI-RS to the UE on each antenna port corresponding to the multiple CSI-RS resources. The CSI-RS is used by the UE to generate a CSI report based on the CSI-RS. In this way, due to the large number of antennas in the massive MIMO scenario, the 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, one CSI-RS resource corresponds to a maximum of 32 antenna ports. Therefore, in the related art, the network-side device transmits the CSI-RS to the UE on the antenna port corresponding to one CSI-RS resource. This method can only support the generation of a 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 massive MIMO scenario, as the number of antennas increases, the above-mentioned method in the related art will not be able to support the generation of a CSI report based on the CSI-RS resource corresponding to more than 3 antenna ports. The CSI-RS resources of two antenna ports generate a CSI report. In an embodiment 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 CSI-RS resource in these 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 each antenna port corresponding to these 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. This is equivalent to using multiple existing CSI-RS resources (each CSI-RS resource can correspond to a maximum of 32 antenna ports) to aggregate into one CSI-RS resource (the number of antenna ports corresponding to the CSI-RS resource must be greater than 32) for channel measurement, thereby enabling generation of a CSI report based on CSI-RS resources corresponding to greater than 32 antenna ports. The CSI report contains information such as the PMI of greater than 32 antenna ports. Therefore, the embodiment of the present application can support the channel measurement process in a large-scale MIMO scenario.

[0033] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to denote the same components. In the drawings:

[0035] FIG1 is a diagram illustrating an application environment of an information transmission method according to an embodiment;

[0036] FIG2 is a schematic diagram of a flow chart of an information transmission method in one embodiment;

[0037] FIG3 is a schematic diagram of a process for a network-side device to determine each antenna port in another embodiment;

[0038] FIG4 is a schematic diagram of antenna port sequence numbers of antenna ports corresponding to two CSI-RS resources in another embodiment;

[0039] FIG5 is a schematic diagram of antenna port numbers of antenna ports corresponding to two CSI-RS resources in another embodiment;

[0040] FIG6 is a schematic diagram of antenna port numbers of antenna ports corresponding to three CSI-RS resources in another embodiment;

[0041] FIG7 is a schematic diagram of antenna port numbers of antenna ports corresponding to two CSI-RS resources in another embodiment;

[0042] FIG8 is a schematic diagram of antenna port serial numbers for a 64-antenna port system;

[0043] FIG9 is a schematic diagram of antenna port numbers for two 32-antenna ports in two antenna panels;

[0044] FIG10 is a schematic flow chart of an information transmission method according to another embodiment;

[0045] FIG11 is a schematic flow chart of an information transmission method according to another embodiment;

[0046] FIG12 is a schematic flow chart of an information transmission method according to another embodiment;

[0047] FIG13 is a schematic diagram of antenna port numbers of antenna ports corresponding to two CSI-RS resources in another embodiment;

[0048] FIG14 is a block diagram of the structure of an information transmission device according to an embodiment;

[0049] FIG15 is a block diagram of the structure of an information transmission device according to another embodiment;

[0050] FIG16 is a schematic diagram of the structure of a network-side device in one embodiment;

[0051] FIG17 is a schematic structural diagram of a user equipment UE according to another embodiment;

[0052] FIG18 is a schematic structural diagram of a chip in one embodiment. DETAILED DESCRIPTION

[0053] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0055] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0056] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0057] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0058] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0059] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0060] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0061] In communication systems, channel state information (CSI) is acquired using reference signals (RSs). In NR systems, the downlink reference signal (CSI-RS) is used. In related technologies, network devices transmit CSI-RS to the UE on the antenna port corresponding to a CSI-RS resource. The UE then performs channel measurement based on the CSI-RS transmitted by the network device and then feeds back a CSI report to the network device. This allows the network device to understand the CSI and optimize wireless communication quality.

[0062] In the current NR system, one CSI-RS resource corresponds to a maximum of 32 antenna ports. Therefore, the above-mentioned method of transmitting CSI-RS to the UE on the antenna port corresponding to one CSI-RS resource by the network side device can only support CSI-RS resources corresponding to a maximum of 32 antenna ports for channel measurement.

[0063] In massive MIMO scenarios, a large number of antennas form a large antenna array to improve communication performance between network devices and UEs. As the number of antennas increases, it becomes necessary to support CSI-RS resources that can correspond to more than 32 antenna ports for channel measurement. However, the aforementioned method of transmitting CSI-RS to the UE on the antenna port corresponding to a single CSI-RS resource cannot support CSI-RS resources corresponding to more than 32 antenna ports for channel measurement. Therefore, it is not well suited for the channel measurement process in massive MIMO scenarios.

[0064] From the perspective of antenna ports, in the current NR system, the number of antenna ports corresponding to one CSI-RS resource is 1, 2, 4, 8, 12, 16, 24 or 32.

[0065] The CSI report is configured using the higher-layer parameter CSI-ReportConfig. If the codebook type parameter in CSI-ReportConfig is configured as 'typeII', 'typeII-PortSelection', 'typeII-r16', 'typeII-PortSelection-r16', or 'typeII-PortSelection-r17', only one CSI-RS resource can be used in each CSI-RS resource set in the resource configuration used for channel measurement.

[0066] The UE transmits CSI-RS on antenna port p corresponding to a CSI-RS resource, where p is numbered using the following formula:

[0067] p=3000+s+j*L

[0068] j=0,1,...,N / L-1

[0069] s=0,1,...,L-1

[0070] Wherein, L is the number of REs (Resource Elements) included in the CDM (Code Division Multiplexing) group corresponding to the CSI-RS resource, L∈{1,2,4,8}, N is the number of antenna ports corresponding to the CSI-RS resource, j is the index of the CDM group, and s is the index of the RE within a CDM group.

[0071] Taking the case where the number of antenna ports corresponding to the CSI-RS resources is 32 as an example, according to the above formula, the antenna port numbers of the 32 antenna ports corresponding to the CSI-RS resources are 0-31.

[0072] A CSI-RS resource is mapped via CSI-RS-Resource Mapping, which includes: frequency domain location indication, number of antenna ports corresponding to the CSI-RS resource, time domain location indication, CDM type, density, and PRB offset.

[0073] The frequency domain position indication uses the bitmap parameter to indicate the location of the subcarriers occupied by the CSI-RS resource within a PRB (Physical Resource Block). The bitmap is configured by the higher-level parameter Frequency Domain Allocation. The time domain position indication includes the parameters l0 and l1, where l0∈{0,1,...,13} and l1∈{2,3,...,12}. l0 and l1 are configured by the higher-level parameters First OFDM Symbol In Time Domain and First OFDM Symbol In Time Domain2.

[0074] CDM types include cdm8-FD2-TD4, cdm4-FD2-TD2, fd-CDM2, and noCDM. fd-CDM2 multiplexes two antenna ports on two frequency-domain carriers and two time-domain symbols corresponding to two REs; cdm4-FD2-TD2 multiplexes four antenna ports on two frequency-domain carriers and two time-domain symbols corresponding to four REs; cdm8-FD2-TD4 multiplexes eight antenna ports on two frequency-domain carriers and four time-domain symbols corresponding to eight REs; and noCDM multiplexes eight antenna ports on eight REs corresponding to two frequency-domain carriers and four time-domain symbols. CSI-RS resources occupy only one RE in noCDM, without using code division multiple access.

[0075] The densities of the CSI-RS resources include 1, 0.5, and 3. When the density is 0.5, the CSI-RS resources support PRB offsets of odd PRBs and even PRBs.

[0076] All antenna ports corresponding to CSI-RS resources are within 1 slot (time slot) and 1 PRB. The RE distribution occupied within (1 slot, 1 PRB) supports the configurations shown in the following table:

[0077]

[0078] in, Indicates the starting position of a CDM group in the frequency domain. Indicates the starting position of a CDM group time domain.

[0079] Each CSI-RS resource indicates the bandwidth position occupied by the CSI-RS through the parameter freq Band, which is specifically configured by the initial RB position and bandwidth width. The configuration is indicated in units of 4 RBs, where the initial RB (Resource Block) position reference point starts from CRB (Common Resource Block) 0, and the bandwidth size needs to meet the minimum bandwidth requirement, that is, The bandwidth size is configured for the CSI-RS. Each CSI-RS resource defines the BWP (Bandwidth Part) ID (IDentity) where the CSI-RS is located through the parameter bwp-Id.

[0080] The above method only supports numbering the antenna ports corresponding to a CSI-RS resource. As described above, the number of antenna ports corresponding to a CSI-RS resource is assumed to be 32. By calculation, the antenna port numbers of the 32 antenna ports corresponding to the 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, by aggregating multiple existing CSI-RS resources (each corresponding to 32 antenna ports) into one CSI-RS resource (the number of antenna ports corresponding to the 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, and thus it is impossible to support CSI-RS resources corresponding to more than 32 antenna ports for channel measurement.

[0081] Figure 1 is a schematic diagram of an implementation environment of an information transmission method provided by an embodiment of the present application, wherein a UE 100 communicates with a network-side device 200 via a network, and the network-side device 200 may be a base station.

[0082] UE 100 may be, but is not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices may include smart speakers, smart TVs, smart air conditioners, smart vehicle-mounted devices, and smart cars. Portable wearable devices may include smart watches, smart bracelets, and head-mounted devices. Base stations may be of various types and are not limited here.

[0083] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0084] In one embodiment, as shown in FIG2 , a method for information transmission is provided. The method is described by taking the method applied to the network side device 200 in FIG1 as an example, including the following steps:

[0085] Step 201: The network-side device determines antenna ports corresponding to respective CSI-RS resources.

[0086] When the network side device determines that CSI-RS needs to be transmitted based on the configuration of the CSI-RS resource, the network side device determines the antenna ports corresponding to the multiple CSI-RS resources. In the embodiment of the present application, each antenna port corresponding to each CSI-RS resource is different.

[0087] Taking the case where multiple CSI-RS resources are two CSI-RS resources, for example, assuming that the two CSI-RS resources correspond to 32 antenna ports respectively, the network side device determines that the antenna port corresponding to the first CSI-RS resource is antenna port 0-31 (0-31 is the antenna port serial number of each antenna port), and the network side device determines that the antenna port corresponding to the second CSI-RS resource is antenna port 32-63 (32-63 is the antenna port serial number of each antenna port). It can be seen that each antenna port corresponding to each CSI-RS resource is different.

[0088] For example, 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 side device determines that the antenna ports corresponding to the first CSI-RS resource are antenna ports 0-15 (0-15 are the antenna port serial numbers of each antenna port), and the network side device determines that the antenna ports corresponding to the second CSI-RS resource are antenna ports 16-47 (16-47 are the antenna port serial numbers of each antenna port). It can be seen that each antenna port corresponding to each CSI-RS resource is different.

[0089] In the embodiment of the present application, each CSI-RS resource may be a resource structure of an existing CSI-RS resource, and the number of antenna ports corresponding to each CSI-RS resource may be 1, 2, 4, 8, 12, 16, 24, or 32. By implementing step 201, the network-side device ensures that the antenna ports corresponding to each CSI-RS resource are different, that is, the antenna ports corresponding to each CSI-RS resource are not repeated, thereby achieving joint numbering of the antenna ports corresponding to multiple CSI-RS resources, which is equivalent to using multiple existing CSI-RS resources (each CSI-RS resource corresponds to a maximum of 32 antenna ports) to aggregate into one CSI-RS resource (the number of antenna ports corresponding to this CSI-RS resource is greater than 32).

[0090] The following is an exemplary introduction to the manner in which the network-side device determines antenna ports corresponding to the multiple CSI-RS resources in step 201.

[0091] In the embodiment of the present application, the network side device may determine each antenna port according to resource configuration information of multiple CSI-RS resources and / or a resource sequence number of each CSI-RS resource.

[0092] Exemplarily, the network-side device can determine the resource configuration information of multiple CSI-RS resources through high-level parameters, such as CSI-ResourceConfig. The resource configuration information may include, for example, the number of antenna ports corresponding to each CSI-RS resource, a time domain position indication, a frequency domain position indication, the type and density of the CDM group corresponding to each CSI-RS resource, and other parameters.

[0093] In one possible implementation of step 201, the network device may determine the antenna ports corresponding to each of the multiple CSI-RS resources based on the resource configuration information. In another possible implementation of step 201, the network device may also determine each antenna port based on the resource configuration information of the multiple CSI-RS resources and the resource sequence number of each CSI-RS resource.

[0094] Taking the example of a network side device determining the antenna ports corresponding to each of the multiple CSI-RS resources based on the above-mentioned resource configuration information, in some embodiments, the network side device can substitute the relevant parameters in the resource configuration information into a pre-set formula, and calculate the antenna port serial numbers of the antenna ports corresponding to each of the multiple CSI-RS resources through the formula; in some embodiments, the network side device can also input the relevant parameters in the resource configuration information into a pre-trained model, and output the antenna port serial numbers of the antenna ports corresponding to each of the multiple CSI-RS resources through the model.

[0095] In other possible implementations of step 201, the antenna port numbers of the antenna ports corresponding to the multiple CSI-RS resources may be calculated by another device instead of the network-side device. The network-side device obtains the antenna port numbers of the antenna ports corresponding to the multiple CSI-RS resources from the other device, thereby determining the antenna ports corresponding to the multiple CSI-RS resources. The specific manner in which the network-side device determines the antenna ports corresponding to the multiple CSI-RS resources is not limited.

[0096] In step 202, the network-side device transmits a CSI-RS to the UE on each antenna port corresponding to a plurality of CSI-RS resources.

[0097] After the network-side device determines the antenna ports corresponding to each of the multiple CSI-RS resources, the network-side device performs resource mapping and transmits the CSI-RS to the UE on each antenna port corresponding to the multiple CSI-RS resources. In other words, the network-side device maps the CSI-RS to multiple CSI-RS resources according to the antenna port number of each antenna port for transmission.

[0098] The CSI-RS sent by the network-side device on each antenna port is used by the UE to generate a CSI report based on the CSI-RS.

[0099] 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 RE occupied by each CSI-RS is mapped. The manner in which the UE determines the antenna port sequence number of each antenna port is similar to the manner in which the network-side device determines the antenna ports corresponding to each of the multiple CSI-RS resources in step 201 above. Next, the UE generates a CSI report based on each antenna port and CSI-RS. Each row of the PMI (Precoding Matrix Indicator) in the CSI report corresponds one-to-one to each antenna port.

[0100] In the above embodiment, the network device determines the antenna ports corresponding to each of the multiple CSI-RS resources, where each CSI-RS resource corresponds to a different antenna port. Then, the network device transmits the CSI-RS to the UE on each antenna port corresponding to the multiple CSI-RS resources. The CSI-RS is used by the UE to generate a CSI report based on the CSI-RS. In this way, due to the large number of antennas in the massive MIMO scenario, the large number of antennas form a large antenna array to improve the communication performance between the network device and the UE. In the current NR system, one CSI-RS resource corresponds to a maximum of 32 antenna ports. Therefore, in the related art, the network device transmits the CSI-RS to the UE on the antenna port corresponding to one CSI-RS resource. This method can only support the generation of one CSI report based on the CSI-RS resource corresponding to a maximum of 32 antenna ports. The CSI report contains information such as the PMI of less than or equal to 32 antenna ports. However, in the massive MIMO scenario, as the number of antennas increases, the above method in the related art will not be able to support the generation of CSI reports based on CSI-RS resources corresponding to more than 32 antenna ports. RS resources generate a CSI report. In an embodiment 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 CSI-RS resource in these multiple CSI-RS resources can, for example, be 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 each antenna port corresponding to these 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. This is equivalent to using the existing multiple CSI-RS resources (each CSI-RS resource can correspond to a maximum of 32 antenna ports) to aggregate into one CSI-RS resource (the number of antenna ports corresponding to the CSI-RS resource must be greater than 32) for channel measurement, thereby enabling generation of a CSI report based on CSI-RS resources corresponding to greater than 32 antenna ports. The CSI report contains information such as the PMI of greater than 32 antenna ports. Therefore, the embodiment of the present application can support the channel measurement process in a large-scale MIMO scenario.

[0101] In one embodiment, based on the embodiment shown in FIG. 2 , several possible implementations are described below to exemplify a process in which a network-side device determines each antenna port based on resource configuration information of multiple CSI-RS resources and / or a resource sequence number of each CSI-RS resource.

[0102] 1) The antenna port sequence numbers of the antenna ports corresponding to the multiple CSI-RS resources are consecutive positive integers, that is, the antenna port sequence numbers of the antenna ports to which the REs occupied by each CSI-RS in the multiple CSI-RS resources are mapped are consecutive and positive integers.

[0103] In this embodiment, there are several possible embodiments as follows:

[0104] 1.1) Referring to FIG. 3 , the network-side device may perform steps 301 and 302 shown in FIG. 3 to implement a process of determining each antenna port based on resource configuration information of multiple CSI-RS resources and / or a resource sequence number of each CSI-RS resource:

[0105] Step 301: For each CSI-RS resource, the network side device obtains the antenna port offset value corresponding to the CSI-RS resource from resource configuration information.

[0106] In this embodiment, each of the multiple CSI-RS resources is configured with an antenna port offset value. The antenna port offset value may refer to an offset value of the antenna port sequence number of the antenna port, and in this embodiment, the antenna port offset value corresponding to each CSI-RS resource is different.

[0107] 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, in some embodiments, the number of antenna ports corresponding to each CSI-RS resource is 32; in some embodiments, 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; in some embodiments, 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, the number of antenna ports corresponding to one CSI-RS resource is 8, and so on.

[0108] The following describes two possible configuration methods for antenna port offset values.

[0109] First, the difference between the antenna port offset values ​​corresponding to any two CSI-RS resources among the multiple CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources.

[0110] For example, continue to take the example that the multiple CSI-RS resources include three CSI-RS resources:

[0111] Assume that 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. The antenna port offset value corresponding to the CSI-RS resource corresponding to 32 antenna ports is 0, the antenna port offset value corresponding to the CSI-RS resource corresponding to 16 antenna ports is 32, and the antenna port offset value corresponding to the CSI-RS resource corresponding to 8 antenna ports is 48.

[0112] Assume that 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. The antenna port offset value corresponding to the CSI-RS resource corresponding to 32 antenna ports is 0, the antenna port offset value corresponding to one CSI-RS resource corresponding to 16 antenna ports is 32, and the antenna port offset value corresponding to the other CSI-RS resource corresponding to 16 antenna ports is 48.

[0113] Assume that the number of antenna ports corresponding to each of the three CSI-RS resources is 32, the antenna port offset value corresponding to one CSI-RS resource corresponding to 32 antenna ports is 0, the antenna port offset value corresponding to another CSI-RS resource corresponding to 32 antenna ports is 32, and the antenna port offset value corresponding to the third CSI-RS resource corresponding to 32 antenna ports is 64.

[0114] In this way, after arranging the multiple antenna port offset values ​​from small to large, 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 resources corresponding to the smallest antenna port offset value among the two antenna port offset values, and the minimum value of the multiple antenna port offset values ​​is 0.

[0115] With this antenna port offset value configuration method, the antenna port offset value corresponding to each CSI-RS resource can be flexibly configured without relying on other configuration information of each CSI-RS resource. During the configuration process, a CSI-RS resource can be arbitrarily selected from multiple CSI-RS resources, and the antenna port offset value corresponding to the selected CSI-RS resource can be configured to 0. Then, another CSI-RS resource can be arbitrarily selected from the remaining multiple CSI-RS resources that are not configured with antenna port offset values, and the antenna port offset value corresponding to the second selected CSI-RS resource can be configured to the number of antenna ports corresponding to the first CSI-RS resource. Then, another CSI-RS resource can be arbitrarily selected from the remaining multiple CSI-RS resources that are not configured with antenna port offset values, and the antenna port offset value corresponding to the third selected CSI-RS resource can be configured to 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 antenna port offset value configuration method has simple implementation logic, is easy to implement and promote, and has a small amount of computation and consumes little computing resources.

[0116] Secondly, the antenna port offset value corresponding to each CSI-RS resource is related to the resource sequence number of each CSI-RS resource (the resource sequence number refers to the pre-set sequence number for each CSI-RS resource in multiple CSI-RS resources, for example, the resource sequence number of the first CSI-RS resource in multiple CSI-RS resources is 1, and the resource sequence number of the kth CSI-RS resource in multiple CSI-RS resources is k).

[0117] Exemplarily, for multiple CSI-RS resources, a resource number k is pre-set for each CSI-RS resource, where k = 0, 1, ..., K-1, and K is the number of CSI-RS resources. The antenna port offset value corresponding to the CSI-RS resource of each resource number can be the sum of the numbers of antenna ports corresponding to the CSI-RS resources of each resource number before the resource number.

[0118] For example, the antenna port offset value corresponding to the CSI-RS resource with resource number 0 among multiple CSI-RS resources is 0, the antenna port offset value corresponding to the CSI-RS resource with resource number 1 is the number of antenna ports corresponding to the CSI-RS resource with resource number 0, the antenna port offset value corresponding to the CSI-RS resource with resource number 2 is the sum of the number of antenna ports corresponding to the CSI-RS resource with resource number 0 and the number of antenna ports corresponding to the CSI-RS resource with resource number 1, and so on.

[0119] If a formula is used to represent this process, for example, referring to Formula 1, the network-side device can calculate the antenna port offset value Δp corresponding to each CSI-RS resource using Formula 1:

[0120]

[0121] Where k is the resource number of the CSI-RS resource, K is the number of multiple CSI-RS resources, and N k is the number of antenna ports corresponding to the k-th CSI-RS resource.

[0122] In this antenna port offset configuration method, after setting a resource sequence number for each CSI-RS resource, the antenna port offset value corresponding to the first CSI-RS resource is set to 0. The antenna port offset value corresponding to each subsequent CSI-RS resource can be conveniently and quickly obtained by summing the number of antenna ports corresponding to one or more CSI-RS resources whose resource sequence numbers precede the resource sequence number of the CSI-RS resource. This method simplifies the implementation process and reduces the computational complexity.

[0123] In this way, the network side device configures a corresponding antenna port offset value for each CSI-RS resource.

[0124] In step 302, the network-side device determines each antenna port according to resource configuration information of multiple CSI-RS resources and antenna port offset values ​​corresponding to each CSI-RS resource.

[0125] Next, the network-side device determines each antenna port according to the remaining information in the 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.

[0126] In a possible implementation 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 a first formula. The first formula is:

[0127] p=δ+s+j*L+Δp

[0128] 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 s, j, L, and Δp are obtained based on resource configuration information.

[0129] 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. This embodiment adds Δp on the basis of this formula, that is, for each CSI-RS resource in the multiple CSI-RS resources in this embodiment, the method of determining the antenna port corresponding to a CSI-RS resource in the related art can be first adopted to calculate the antenna port sequence number of each antenna port corresponding to the CSI-RS resource. Then, the antenna port offset value corresponding to the CSI-RS resource is added to the antenna port sequence number of each antenna port corresponding to the CSI-RS resource, and finally the antenna port sequence number of each antenna port corresponding to the multiple CSI-RS resources in this embodiment is obtained, that is, the network side device determines each antenna port corresponding to the multiple CSI-RS resources.

[0130] The following diagrams illustrate antenna ports corresponding to the multiple CSI-RS resources determined by the network-side device in this embodiment.

[0131] Assume that the multiple CSI-RS resources are two CSI-RS resources, the number of antenna ports corresponding to each CSI-RS resource is 32, the type of the 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, and the antenna port offset values ​​corresponding to the two CSI-RS resources are 0 and 32, respectively. Referring to FIG. 4 , FIG. 4 shows the antenna port sequence numbers of the antenna ports corresponding to the two CSI-RS resources, respectively, determined by the network-side device using the implementation scheme of this embodiment.

[0132] As shown in FIG4 , the antenna port offset value corresponding to the first CSI-RS resource in the time domain (TD) is 0, and the antenna port sequences of the 32 antenna ports corresponding to the first CSI-RS resource are 3000, 3001, 3002, ..., 3031, respectively. 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 (TD) is 32, and the antenna port sequences of the 32 antenna ports corresponding to the second CSI-RS resource are 3032, 3033, 3034, ..., 3063, respectively. The antenna ports corresponding to the second CSI-RS resource are different, and the antenna ports corresponding to the first CSI-RS resource and the antenna ports corresponding to the second CSI-RS resource are also different.

[0133] After the network side device determines the antenna ports corresponding to each of the multiple CSI-RS resources according to the implementation method 1.1), the network side device transmits the CSI-RS to the UE on each of the antenna ports corresponding to the multiple CSI-RS resources.

[0134] 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 RE occupied by each CSI-RS is mapped. The way in which the UE determines the antenna port number of each antenna port is similar to the way in which the network-side device determines the antenna port corresponding to each of the multiple CSI-RS resources according to the implementation method 1.1). Then, the UE generates a CSI report based on each antenna port and CSI-RS.

[0135] It should be noted that the form of the first formula does not constitute a limitation on the implementation method corresponding to the first formula. As long as the scheme for determining each antenna port is the same as the concept expressed by the first formula, it should be within the scope of protection 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 the antenna port offset value corresponding to the CSI-RS resource, where p = δ + s + j * L, and the meanings of δ, s, j, and L are as described above and will not be repeated here.

[0136] The above embodiment can determine the antenna ports corresponding to multiple CSI-RS resources by adjusting the antenna port offset value corresponding to each CSI-RS resource and combining it with existing related technologies. Compared with related technologies, this implementation method has little impact on existing protocols.

[0137] In another possible implementation of step 302, the network side device may send resource configuration information of multiple CSI-RS resources and the antenna port offset value corresponding to each CSI-RS resource to other devices, and the other devices determine each antenna port based on the resource configuration information of multiple CSI-RS resources and the antenna port offset value corresponding to each CSI-RS resource. The network side device directly obtains the antenna port sequence number of the antenna port corresponding to each CSI-RS resource from the other device, thereby determining the antenna port corresponding to each CSI-RS resource. The specific implementation method of step 302 is not limited here.

[0138] 1.2) For each CSI-RS resource, the network-side device determines the antenna port p corresponding to the CSI-RS resource according to the second formula, thereby implementing the process of determining each antenna port based on the resource configuration information of multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource. The second formula is:

[0139] p=δ+s+j*L+k*N

[0140] Wherein, δ is a preset constant, k is the resource index of the CSI-RS resource, k = 0, 1, ..., K-1, K is the number 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 resource configuration information.

[0141] Similar to the implementation of 1.1) above, 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 in the related art for determining the antenna port p corresponding to a CSI-RS resource.

[0142] The difference between this embodiment and the implementation method of 1.1) above is that, in this embodiment, the number of antenna ports corresponding to each CSI-RS resource in multiple CSI-RS resources, the type of CDM group, and the number of CDM groups are the same. This embodiment adds k*N on the basis of the above formula of the related art, where k is the resource sequence number of the CSI-RS resource, k=0,1,...,K-1, and N is the number of antenna ports corresponding to one 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 in the multiple CSI-RS resources, since 0*N=0, it still adopts the method of determining the antenna port corresponding to a CSI-RS resource in the related art to calculate the antenna port sequence number of each antenna port corresponding to the CSI-RS resource with k=0, and for the CSI-RS resource with k=1 in the multiple CSI-RS resources, since 1*N=N, it adopts the method of determining the antenna port corresponding to the CSI-RS resource in the related art. The method for determining the antenna port corresponding to a CSI-RS resource is to calculate the antenna port sequence number of each antenna port corresponding to the CSI-RS resource with k=1. The antenna port sequence number of each antenna port needs to be increased by N to obtain the antenna port sequence number 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, the method for determining the antenna port corresponding to a CSI-RS resource in the related art is used to calculate the antenna port sequence number of each antenna port corresponding to the CSI-RS resource with k=2. The antenna port sequence number of each antenna port needs to be increased by 2N to obtain the antenna port sequence number of each antenna port corresponding to the CSI-RS resource with k=2. Similarly, the antenna port sequence number of each antenna port corresponding to multiple CSI-RS resources in this embodiment is finally obtained. That is, the network-side device determines each antenna port corresponding to the multiple CSI-RS resources.

[0143] The following diagrams illustrate antenna ports corresponding to the multiple CSI-RS resources determined by the network-side device in this embodiment.

[0144] Assume that the multiple CSI-RS resources are two CSI-RS resources, the number of antenna ports corresponding to each CSI-RS resource is 32, the type of the 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, and the resource sequence numbers corresponding to the two CSI-RS resources are k=0 and k=1, respectively. Referring to FIG. 5 , FIG. 5 shows the antenna port sequence numbers of the antenna ports corresponding to the two CSI-RS resources, determined by the network-side device using the implementation scheme of this embodiment.

[0145] As shown in FIG5 , the antenna port numbers of the 32 antenna ports corresponding to the CSI-RS resource with k=0 are 3000, 3001, 3002, ..., 3031, and the antenna ports corresponding to the CSI-RS resource with k=0 are different. When k=1, k*N=32, and the antenna port numbers of the 32 antenna ports corresponding to the CSI-RS resource with k=1 start 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, and the antenna ports corresponding to the CSI-RS resource with k=1 are different. Moreover, 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.

[0146] After the network side device determines the antenna ports corresponding to the multiple CSI-RS resources according to the implementation method of 1.2), the network side device transmits the CSI-RS to the UE on each antenna port corresponding to the multiple CSI-RS resources.

[0147] 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 RE occupied by each CSI-RS is mapped. The way in which the UE determines the antenna port number of each antenna port is similar to the way in which the network-side device determines the antenna port corresponding to each of the multiple CSI-RS resources according to the implementation method 1.2). Then, the UE generates a CSI report based on each antenna port and CSI-RS.

[0148] It should be noted that the form of the second formula does not constitute a limitation on the implementation method corresponding to the second formula. As long as the scheme is the same as the concept of determining each antenna port expressed by the second formula, it should be within the scope of protection 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 the k*N corresponding to the CSI-RS resource, where p = δ+s+j*L, and the meanings of δ, s, j, L, and N are as described above and will not be repeated here.

[0149] In the above embodiment, after setting the resource sequence number for each CSI-RS resource, the change in the antenna port sequence number that needs to be increased for the antenna port corresponding to each CSI-RS resource is determined by k*N. Combined with existing related technologies, the antenna ports corresponding to multiple CSI-RS resources can be determined. Compared with related technologies, this implementation method has little impact on existing protocols.

[0150] 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, thereby implementing the process of determining each antenna port based on the resource configuration information of multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource. The third formula is:

[0151]

[0152] Wherein, 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 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 i-th CSI-RS resource among multiple CSI-RS resources, s k 、j k , L k and N i It is obtained based on resource configuration information.

[0153] Similar to the above embodiment, δ may be 3000. Of course, during implementation, δ may also take other values ​​according to actual needs.

[0154] The difference between this embodiment and the implementation of 1.2) above is that the number of antenna ports corresponding to each CSI-RS resource in the multiple CSI-RS resources, the type of CDM group, and the number of CDM groups can be the same or different. Therefore, k 、j k , L k The calculations are all related to the specific resource conditions 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 number of each antenna port corresponding to the k-th CSI-RS resource by the method, it is also necessary to add the antenna port number of each antenna port corresponding to the k-th CSI-RS resource to That is, add the number of antenna ports corresponding to the first k-1 CSI-RS resources.

[0155] It should be noted that when k=0, the 0th CSI-RS resource is based on p=δ+s k +j k *L k The antenna port number of each antenna port corresponding to the 0th CSI-RS resource can be calculated in this way, that is, k≥1 in the second formula.

[0156] Then, for the CSI-RS resource with k=0 among the multiple CSI-RS resources, only p=δ+s is used. k +j k *L k Formula, calculate the antenna port number of each antenna port corresponding to the CSI-RS resource with k=0; and for the CSI-RS resource with k=1 in multiple CSI-RS resources, it uses p=δ+s k +j k *L k Formula, when calculating the antenna port sequence number of each antenna port corresponding to the CSI-RS resource with k = 1, the antenna port sequence number of each antenna port needs to be added with N0, N0 is the number of antenna ports corresponding to the CSI-RS resource with k = 0, and it is the antenna port sequence number of each antenna port corresponding to the CSI-RS resource with k = 1; for the CSI-RS resource with k = 2 in multiple CSI-RS resources, it adopts p = δ + s k +j k *L kAccording to the formula, when calculating the antenna port sequence number of each antenna port corresponding to the CSI-RS resource with k=2, the antenna port sequence number of each antenna port needs to be added with N0+N1, where 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. This is the antenna port sequence number of each antenna port corresponding to the CSI-RS resource with k=2, and so on. Finally, the antenna port sequence number of each antenna port corresponding to multiple CSI-RS resources in this embodiment is obtained, that is, the network side device determines each antenna port corresponding to multiple CSI-RS resources.

[0157] The following diagrams illustrate antenna ports corresponding to the multiple CSI-RS resources determined by the network-side device in this embodiment.

[0158] Assume that the multiple CSI-RS resources are three CSI-RS resources, the number of antenna ports corresponding to the CSI-RS resource with k=0 is 32, the number of antenna ports corresponding to the CSI-RS resource with k=1, and the number of antenna ports corresponding to the CSI-RS resource with k=2 are both 16. Referring to FIG6 , FIG6 shows the antenna port sequence numbers of the antenna ports corresponding to the three CSI-RS resources, determined by the network-side device using the implementation scheme of this embodiment.

[0159] As shown in Figure 6, the antenna port numbers of the 32 antenna ports corresponding to the CSI-RS resource with k=0 are 3000, 3001, 3002, ..., 3031, 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 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, and the antenna ports corresponding to the CSI-RS resource with k=1 are different. The antenna ports are different; when k=2, N0+N1=48, then the antenna port numbers of the 16 antenna ports corresponding to the CSI-RS resource of k=2 start from 3000+48=3048, and the antenna port numbers of the 16 antenna ports corresponding to the CSI-RS resource of k=2 are 3048, 3049, 3050, ..., 3063 respectively. The antenna ports corresponding to the CSI-RS resource of k=2 are different, and the antenna ports corresponding to the CSI-RS resource of k=0, the antenna ports corresponding to the CSI-RS resource of k=1, and the antenna ports corresponding to the CSI-RS resource of k=2 are also different.

[0160] After the network side device determines the antenna ports corresponding to each of the multiple CSI-RS resources according to the implementation method of 1.3), the network side device transmits the CSI-RS to the UE on each of the antenna ports corresponding to the multiple CSI-RS resources.

[0161] 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 RE occupied by each CSI-RS is mapped. The way in which the UE determines the antenna port number of each antenna port is similar to the way in which the network-side device determines the antenna port corresponding to each of the multiple CSI-RS resources according to the implementation method 1.3). Then, the UE generates a CSI report based on each antenna port and CSI-RS.

[0162] The above embodiments can determine the antenna ports corresponding to each of the multiple CSI-RS resources when the number of antenna ports corresponding to each CSI-RS resource in the multiple CSI-RS resources, the type of CDM group, and the number of CDM groups are the same or different, and have a wide range of applicability and greater implementation flexibility.

[0163] In the above, when the antenna port numbers of the antenna ports corresponding to the multiple CSI-RS resources are consecutive positive integers, the network side device determines the process of 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.

[0164] In the following, other possible implementations of determining each antenna port by the network-side device according to the resource configuration information of multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource are introduced.

[0165] 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.

[0166] In this embodiment, there are several possible embodiments as follows:

[0167] 2.1) For each CSI-RS resource, the network-side device determines the antenna port p corresponding to the CSI-RS resource according to the fourth formula, thereby implementing a process of determining each antenna port based on resource configuration information of multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource. The fourth formula is:

[0168]

[0169] Wherein, δ is a preset constant, k is the resource index of the CSI-RS resource, k = 0, 1, ..., K-1, K is the number 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 resource configuration information.

[0170] In this embodiment, the number of antenna ports, the type of CDM groups, and the number of CDM groups corresponding to each CSI-RS resource in the multiple CSI-RS resources are all the same.

[0171] Similar to the above embodiment, δ can be 3000. Of course, during the implementation process, δ can also take other values ​​according to actual needs. For each CSI-RS resource with a resource sequence number in multiple CSI-RS resources, the network side device substitutes the resource sequence 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 sequence number of each antenna port corresponding to 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, in the process of substituting the above first formula to the fifth formula for calculation, the network side device can first substitute s =0, j=0 are substituted in to calculate the antenna port to which the first RE in the first CDM group is mapped. Then, the network-side device can first substitute s=1, j=0 to calculate the antenna port to which the second RE in the first CDM group is mapped. After the antenna ports to which the 8 REs in the first CDM group are mapped are calculated, s=0, j=1 are substituted in to calculate the antenna port to which the first RE in the second CDM group is mapped. This process is deduced by analogy until the antenna port to which each RE in each CDM group is mapped is calculated. The network-side device then determines the antenna ports corresponding to the CSI-RS resource.

[0172] The following diagrams illustrate antenna ports corresponding to the multiple CSI-RS resources determined by the network-side device in this embodiment.

[0173] Assume that the multiple CSI-RS resources are two CSI-RS resources, the number of antenna ports corresponding to each CSI-RS resource is 32, the type of the 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, and the resource sequence numbers corresponding to the two CSI-RS resources are k=0 and k=1, respectively. Referring to FIG. 7 , FIG. 7 shows the antenna port sequence numbers of the antenna ports corresponding to the two CSI-RS resources, determined by the network-side device using the implementation scheme of this embodiment.

[0174] As shown in Figure 7, 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, respectively, 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, respectively, 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, respectively, and the CSI-RS resource with k=1 corresponds to The antenna port serial numbers of the multiple antenna ports in the second group are 3048, 3049, 3050, ..., 3063, that is, the antenna port serial 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 serial numbers of the multiple antenna ports in the second group are consecutive positive integers (3032, 3033, 3034, ..., 3047, 3048, 3049, 3050, ..., 3063).

[0175] In this embodiment, the absolute value of the difference between the smallest antenna port numbers in 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 multiple CSI-RS resources. For example, please continue to refer to Figure 7. The smallest antenna port numbers in 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 the difference between the two is equal to 32. Half of the total number of antenna ports (64) corresponding to the two CSI-RS resources in Figure 7 is also equal to 32.

[0176] In this embodiment, the antenna ports corresponding to the CSI-RS resource with k=0 are different, 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.

[0177] After the network side device determines the antenna ports corresponding to each of the multiple CSI-RS resources according to the implementation method 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.

[0178] 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 RE occupied by each CSI-RS is mapped. The way in which the UE determines the antenna port number of each antenna port is similar to the way in which the network-side device determines the antenna port corresponding to each of the multiple CSI-RS resources according to the implementation method 2.1). Then, the UE generates a CSI report based on each antenna port and CSI-RS.

[0179] The above embodiment divides 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 continuous positive integers. This can better apply to single-board antenna scenarios and improve the antenna performance in single-board antenna scenarios. The principle of improving antenna performance in single-board antenna scenarios will be explained below.

[0180] 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, thereby implementing a process of determining each antenna port based on the resource configuration information of multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource. The fifth formula is:

[0181]

[0182] Wherein, δ is a preset constant, k is the resource index of the CSI-RS resource, k = 0, 1, ..., K-1, K is the number 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 resource configuration information.

[0183] In this embodiment, the number of antenna ports, the type of CDM groups, and the number of CDM groups corresponding to each CSI-RS resource in the multiple CSI-RS resources are all the same.

[0184] Similar to the above embodiment, δ may be 3000. Of course, during implementation, δ may also take other values ​​as needed. For each CSI-RS resource with a resource sequence number in the multiple CSI-RS resources, the network-side device substitutes the resource sequence number of the CSI-RS resource, s, j, L, and N in the resource configuration information into the fifth formula to calculate the antenna port sequence number of each antenna port corresponding to each CSI-RS resource. The calculation method for substitution can refer to the relevant description above, until the antenna port to which each RE in each CDM group is mapped is calculated. The network-side device then determines the antenna ports corresponding to the CSI-RS resource.

[0185] The effect of the antenna ports corresponding to the multiple CSI-RS resources determined by the network side device in this embodiment is consistent with the effect of the antenna ports corresponding to the multiple CSI-RS resources determined by the network side device in the implementation of 2.1). Please refer to Figure 7. As shown in Figure 7, the antenna port serial numbers of the multiple antenna ports in the first group corresponding to the CSI-RS resource with k=0 are 3000, 3001, 3002, ..., 3015, respectively. The antenna port serial numbers of the multiple antenna ports in the second group corresponding to the CSI-RS resource with k=0 are 3032, 3033, 3034, ..., 3047, respectively. The antenna port serial numbers of the multiple antenna ports in the first group corresponding to the CSI-RS resource with k=1 are 3016, 3017, 3018, ..., 3031, 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, respectively, 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).

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

[0187] In this embodiment, the antenna ports corresponding to the CSI-RS resource with k=0 are different, 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.

[0188] After the network side device determines the antenna ports corresponding to each of the multiple CSI-RS resources according to the implementation method 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.

[0189] 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 RE occupied by each CSI-RS is mapped. The way in which the UE determines the antenna port number of each antenna port is similar to the way in which the network-side device determines the antenna port corresponding to each of the multiple CSI-RS resources according to the implementation method 2.2). Then, the UE generates a CSI report based on each antenna port and CSI-RS.

[0190] The above embodiment divides 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, which can better apply to single-board antenna scenarios and improve antenna performance in single-board antenna scenarios.

[0191] Below, the preferred application scenarios of the above-mentioned implementation method 1) (i.e., the multiple antenna ports corresponding to each CSI-RS resource are not grouped) and the above-mentioned implementation method 2) (i.e., the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups) are introduced.

[0192] The structure of the Type I single-board codebook in existing NR systems implies that the antenna ports corresponding to CSI-RS resources are numbered consecutively in one polarization direction and then in the other polarization direction. For example, see Figure 8, which shows the antenna port numbering for a 64-antenna port system. In Figure 8, the antenna port number for each antenna port is 3000 + the number in Figure 8.

[0193] For a single-board antenna scenario, if the implementation method in 1) above is adopted, all antenna ports corresponding to each CSI-RS resource in multiple CSI-RS resources correspond to the same polarization direction. In this case, if one of the multiple CSI-RS resources is configured for use by the UE, the UE selects the optimal PMI from the dual-polarization designed codebook based on the CSI-RS in the same polarization direction. Since the dual-polarization designed codebook may not match the single-polarization measurement channel, PMI mismatch may occur, resulting in degraded antenna performance.

[0194] However, if the implementation method in the above 2) is adopted, the multiple antenna ports corresponding to each CSI-RS resource are divided into two groups, and half of all the antenna ports corresponding to each CSI-RS resource in the multiple CSI-RS resources correspond to one polarization direction, and the other half correspond to another polarization direction. In this way, if a CSI-RS resource in the multiple CSI-RS resources is configured for use by the UE, the UE selects the optimal PMI from the dual-polarization designed codebook based on the CSI-RS in the two polarization directions. The dual-polarization designed codebook is matched with the dual-polarization measurement channel. Therefore, the implementation method in the above 2) can be better applied to the single-board antenna scenario and improve the antenna performance in the single-board antenna scenario. In the single-board antenna scenario, the implementation method in the above 2) can realize the sharing of CSI-RS resources corresponding to a maximum of 32 antenna ports in the existing system.

[0195] The structure of the existing NR system Type I multi-board codebook implies that half of the antenna ports on each antenna panel have one polarization direction, and the other half have the other polarization direction. The antenna ports corresponding to the CSI-RS resources are numbered consecutively, starting with one polarization direction for one antenna panel, then the other polarization direction, and then the other polarization direction for another antenna panel. For example, for two antenna panels, see Figure 9, which shows the antenna port numbering for 32 antenna ports on two antenna panels. The antenna port number for each antenna port in Figure 9 is 3000 + the number in Figure 9.

[0196] For a multi-panel antenna scenario, if the implementation in 1) above is adopted, half of all antenna ports corresponding to each CSI-RS resource in the multiple CSI-RS resources correspond to one polarization direction, and the other half correspond to the other polarization direction. In this way, if a CSI-RS resource among the multiple CSI-RS resources is configured for use by a UE, the UE selects the optimal PMI from a dual-polarization designed codebook based on the CSI-RS in the two polarization directions. The dual-polarization designed codebook is matched to the dual-polarization measurement channel.

[0197] If the implementation method in the above 2) is adopted, all antenna ports corresponding to each CSI-RS resource in the multiple CSI-RS resources are of the same polarization direction. In this way, if a CSI-RS resource in each CSI-RS resource in the multiple CSI-RS resources is configured for use by the UE, the UE selects the optimal PMI from the dual-polarization designed codebook based on the CSI-RS in the same polarization direction. Since the dual-polarization designed codebook may not match the single-polarization measurement channel, PMI mismatch may occur, resulting in a degradation of antenna performance. Therefore, the implementation method in the above 1) is applicable to multi-panel antenna scenarios. In multi-panel antenna scenarios, the implementation method in the above 1) can achieve sharing of CSI-RS resources corresponding to a maximum of 32 antenna ports in the existing system.

[0198] In addition, it should be noted that the embodiment of the present application divides the multiple antenna ports corresponding to each CSI-RS resource into two groups, instead of four or eight groups. This is because the antenna port has only two polarization directions. The multiple antenna ports corresponding to each CSI-RS resource are divided into two groups to ensure that half of the antenna ports corresponding to each CSI-RS resource are in one polarization direction, and the corresponding other half of the antenna ports are in another polarization direction, so that it can adapt to the single-board antenna scenario and improve antenna performance.

[0199] In some of the above embodiments, it is mentioned that the process of the network side device determining the antenna port corresponding to each of the multiple CSI-RS resources needs to be implemented using the resource sequence number of each CSI-RS resource. The following is an exemplary description of the method by which the network side device determines the resource sequence number of each CSI-RS resource.

[0200] In a possible implementation manner, the information transmission method of this embodiment further includes the following step A1:

[0201] In step A1, the network side device determines the resource sequence number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

[0202] In some embodiments, the network side device may sort the resource IDs of the CSI-RS resources in ascending or descending order to obtain a sorting sequence, and the network side device uses the position number of the CSI-RS resource in the sorting sequence as the resource number of the CSI-RS resource to implement the process of step A1.

[0203] That is, the network side device arranges multiple CSI-RS resources in ascending order according to their resource IDs. In this way, in ascending order of resource IDs, the resource sequence numbers k corresponding to the respective CSI-RS resources are 0, 1, ..., K-1.

[0204] Alternatively, the network side device arranges multiple CSI-RS resources in descending order according to their resource IDs. In this way, in descending order of resource IDs, the resource sequence numbers k corresponding to the respective CSI-RS resources are 0, 1, ..., K-1.

[0205] In some embodiments, the network side device can also input the resource ID of each CSI-RS resource into a pre-trained artificial intelligence model, and predict and output the resource sequence number of each CSI-RS resource through the artificial intelligence model. There is no restriction on the specific implementation method of step A1.

[0206] In another possible implementation, the information transmission method of this embodiment further includes the following step A2:

[0207] In step A2, the network side device determines the resource sequence number of each CSI-RS resource based on the frequency domain position and time domain position occupied by each CSI-RS resource.

[0208] In an exemplary implementation of step A2, the network-side device may first sort each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order, and then continue to sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order to obtain a first sorting result, and determine the resource sequence number of each CSI-RS resource based on the first sorting result. That is, the network-side device numbers each CSI-RS resource in sequence according to the order of first the frequency domain (CRB index and subcarrier index from small to large) and then the time domain (slot index from small to large), and the resource sequence number k of each CSI-RS resource is 0, 1, ..., K-1.

[0209] In another exemplary embodiment of step A2, the network-side device may further first sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order, and then continue to sort each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order to obtain a second sorting result, and determine the resource sequence number of each CSI-RS resource based on the second sorting result. That is, the network-side device sequentially numbers each CSI-RS resource in the order of first the time domain (slot index from small to large) and then the frequency domain (CRB index and subcarrier index from small to large), and the resource sequence number k of each CSI-RS resource is 0, 1, ..., K-1.

[0210] The network-side device transmits the CSI-RS to the UE on each antenna port corresponding to the determined multiple CSI-RS resources.

[0211] 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. Similar to the process in which the network-side device determines the antenna port corresponding to each of the multiple CSI-RS resources, the UE determines that the antenna port to which the RE occupied by each CSI-RS is mapped may also need to be implemented using the resource sequence number of each CSI-RS resource. The manner in which the UE determines the resource sequence number of each CSI-RS resource is similar to the manner in which the network-side device determines 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 the CSI-RS.

[0212] In this way, after determining the resource sequence number of each CSI-RS resource according to any of the above-mentioned implementation methods, the network side device then determines each antenna port based on the resource configuration information of multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource, so as to realize the use of CSI-RS resources corresponding to more than 32 antenna ports for channel measurement, thereby supporting the channel measurement process in a large-scale MIMO scenario.

[0213] Based on any of the above embodiments, referring to FIG10 , the information transmission method of this embodiment further includes step 1001 shown in FIG10 :

[0214] Step 1001: The network side device sends the port number of CSI-RS resources used for channel measurement associated with the CSI report to the UE.

[0215] The number of ports is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0216] For example, the network-side device may calculate the number of ports X using the following formula 2:

[0217]

[0218] Where k is the resource number of the CSI-RS resource, K is the number 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.

[0219] In the embodiment of the present application, the number X of ports of CSI-RS resources used for channel measurement can be obtained by any of the following methods:

[0220] Method 1: The number of ports is configured through the preset fields in the configuration information reported by the CSI.

[0221] Exemplarily, the number of ports X=2*N1*N2 may be determined by (N1, N2) included in CodebookConfig in the CSI report configured by the high-level parameter CSI-ReportConfig.

[0222] Wherein, N1 represents the number of antenna ports of a first dimension in a polarization direction in the physical antenna ports; N2 represents the number of antenna ports of a second dimension in a polarization direction in the physical antenna ports.

[0223] Exemplarily, (N1, N2) and the corresponding (O1, O2) support at least one of the following configurations, where O1 is the oversampling factor of the first dimension in one polarization direction in the physical antenna port, and O2 is the oversampling factor of the second dimension in one polarization direction in the physical antenna port.

[0224]

[0225] 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.

[0226] That is, the number of ports X is indicated by adding a higher-layer parameter to the resource configuration information of the CSI-RS resources used for channel measurement.

[0227] After the UE receives the port number of CSI-RS resources for channel measurement associated with the CSI report sent by the network side device, the UE determines the process of each antenna port based on the CSI-RS. Specifically, the UE can determine each antenna port based on the port number and CSI-RS. The method of indicating the port number is flexible and can improve the implementation flexibility of the embodiment of the present application.

[0228] Based on any of the above embodiments, referring to FIG11 , the information transmission method of this embodiment further includes step 1101 shown in FIG11 :

[0229] Step 1101: The network side device receives a CSI report sent by the UE.

[0230] The CSI report is generated by the UE based on the successfully received CSI-RS.

[0231] In this embodiment, if the CSI-RS in at least one of the multiple CSI-RS resources cannot be transmitted, for example, there is a conflict in the configured time-frequency resource position or it is not an available DL subframe, the UE can also support this channel measurement.

[0232] Exemplarily, in this case, the UE supports at least one of the following CSI reporting methods:

[0233] 1. The UE generates a CSI report based on the successfully received CSI-RS. Each PMI row in the CSI report corresponds to each antenna port corresponding to K' CSI-RS resources, where K' is less than the number of CSI-RS resources K.

[0234] 2. The UE does not report this CSI report.

[0235] In other possible implementations, if the CSI-RS in at least one of the multiple CSI-RS resources cannot be transmitted, the UE may not support the current channel measurement.

[0236] The above embodiment provides an implementation method of the information transmission method of the embodiment of the present application when the CSI-RS in at least one CSI-RS resource among multiple CSI-RS resources cannot be transmitted. It takes into account various possible situations during the implementation process and can improve the implementation reliability of the information transmission method of the embodiment of the present application.

[0237] In one embodiment, an information transmission method is provided. The information transmission method is used for a UE. Referring to FIG. 12 , the method includes steps 1201 and 1202 shown in FIG. 12 :

[0238] Step 1201: The UE receives a CSI-RS sent by a network-side device.

[0239] The CSI-RS is transmitted by the network side device on each antenna port corresponding to multiple CSI-RS resources. Each CSI-RS resource corresponds to a different antenna port.

[0240] In 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.

[0241] In one embodiment, the information transmission method of this embodiment further includes the following steps:

[0242] 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, where the number of ports is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources;

[0243] Correspondingly, the UE determines each antenna port according to the CSI-RS, including:

[0244] The UE determines the antenna ports according to the number of ports and the CSI-RS.

[0245] In one embodiment, the process of the UE determining each antenna port according to the CSI-RS is implemented by the following steps:

[0246] The UE determines each antenna port according to resource configuration information of multiple CSI-RS resources corresponding to the CSI-RS and / or the resource sequence number of each CSI-RS resource.

[0247] In one embodiment, the antenna port numbers of the antenna ports are consecutive positive integers.

[0248] In one embodiment, the UE determines each antenna port according to resource configuration information of multiple CSI-RS resources corresponding to the CSI-RS and / or the resource sequence number of each CSI-RS resource by the following steps:

[0249] For each CSI-RS resource, the UE obtains the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information.

[0250] The UE determines each antenna port according to resource configuration information of multiple CSI-RS resources and the antenna port offset value corresponding to each CSI-RS resource.

[0251] In one embodiment, the UE determines each antenna port according to resource configuration information of multiple CSI-RS resources and antenna port offset values ​​corresponding to each CSI-RS resource by the following steps:

[0252] For each CSI-RS resource, the UE determines the antenna port p corresponding to the CSI-RS resource according to the first formula, which is:

[0253] p=δ+s+j*L+Δp

[0254] 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 s, j, L, and Δp are obtained based on resource configuration information.

[0255] In one embodiment, the antenna port offset value corresponding to each CSI-RS resource is 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 value corresponding to each CSI-RS resource is different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource sequence number of each CSI-RS resource.

[0256] In one embodiment, the UE determines each antenna port according to resource configuration information of multiple CSI-RS resources corresponding to the CSI-RS and / or the resource sequence number of each CSI-RS resource by the following steps:

[0257] For each CSI-RS resource, the UE determines the antenna port p corresponding to the CSI-RS resource according to the second formula, which is:

[0258] p=δ+s+j*L+k*N

[0259] Wherein, δ is a preset constant, k is the resource index of the CSI-RS resource, k = 0, 1, ..., K-1, K is the number 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 resource configuration information.

[0260] In one embodiment, the UE determines each antenna port according to resource configuration information of multiple CSI-RS resources corresponding to the CSI-RS and / or the resource sequence number of each CSI-RS resource by the following steps, including:

[0261] For each CSI-RS resource, the UE determines the antenna port p corresponding to the CSI-RS resource according to the third formula, which is:

[0262]

[0263] Wherein, 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 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 i-th CSI-RS resource among multiple CSI-RS resources, s k 、j k , L k and N i It is obtained based on resource configuration information.

[0264] 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.

[0265] In one embodiment, the absolute value of the difference between the smallest antenna port numbers in 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.

[0266] In one embodiment, the UE determines each antenna port according to resource configuration information of multiple CSI-RS resources corresponding to the CSI-RS and / or the resource sequence number of each CSI-RS resource by the following steps:

[0267] For each CSI-RS resource, the UE determines the antenna port p corresponding to the CSI-RS resource according to the fourth formula, which is:

[0268]

[0269] Wherein, δ is a preset constant, k is the resource index of the CSI-RS resource, k = 0, 1, ..., K-1, K is the number 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 resource configuration information.

[0270] In one embodiment, the UE determines each antenna port according to resource configuration information of multiple CSI-RS resources corresponding to the CSI-RS and / or the resource sequence number of each CSI-RS resource by the following steps:

[0271] For each CSI-RS resource, the UE determines the antenna port p corresponding to the CSI-RS resource according to the fifth formula, which is:

[0272]

[0273] Wherein, δ is a preset constant, k is the resource index of the CSI-RS resource, k = 0, 1, ..., K-1, K is the number 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 resource configuration information.

[0274] 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 for channel measurement associated with the CSI report.

[0275] In one embodiment, the information transmission method of this embodiment further includes the following steps:

[0276] The UE determines the resource sequence number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

[0277] In one embodiment, the process of the UE determining the resource sequence number of each CSI-RS resource according to the resource ID of each CSI-RS resource is implemented by the following steps:

[0278] The UE sorts the CSI-RS resources in ascending or descending order according to their resource IDs to obtain a sorted sequence.

[0279] The UE uses the position number of the CSI-RS resource in the sorting sequence as the resource number of the CSI-RS resource.

[0280] In one embodiment, the information transmission method of this embodiment further includes the following steps:

[0281] The UE determines the resource sequence number of each CSI-RS resource based on the frequency domain position and time domain position occupied by each CSI-RS resource.

[0282] In one embodiment, the process of the UE determining the resource sequence number of each CSI-RS resource based on the frequency domain position and time domain position occupied by each CSI-RS resource can be implemented by the following steps:

[0283] The UE first sorts each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order, and then continues to sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order, to obtain a first sorting result, and determines the resource sequence number of each CSI-RS resource according to the first sorting result; or, the UE first sorts each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order, and then continues to sort each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order, to obtain a second sorting result, and determines the resource sequence number of each CSI-RS resource according to the second sorting result.

[0284] For the relevant limitations and beneficial effects of the information transmission method used in the UE, please refer to the relevant content of the information transmission method used for the network side device mentioned above, which will not be repeated here.

[0285] The following describes several possible implementation methods of the information transmission method according to the embodiment of the present application through several examples.

[0286] Example 1:

[0287] The network-side device configures a CSI report using the high-level parameter CSI-ReportConfig. CSI-ReportConfig contains (N1, N2) = (8, 4), which indicates the number of CSI-RS resource ports used for channel measurement (X = 2*8*4 = 64). The CSI-ResourceConfig for channel measurement associated with the CSI report includes two CSI-RS resources. The number of antenna ports corresponding to each of the two CSI-RS resources is 32 (i.e., N = 32). The type of the CDM groups corresponding to the two CSI-RS resources is cdm8-FD2-TD4. The number of CDM groups corresponding to the two CSI-RS resources is 4 (j = 0, 1, 2, 3). The number of REs included in the CDM groups corresponding to the two CSI-RS resources is 8 (s = 0, 1, ..., 7). The antenna port offset values ​​corresponding to the two CSI-RS resources are 0 and 32, respectively.

[0288] Based on the resource configuration information of the above two CSI-RS resources, the network side device uses the above first 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 uses the first formula to consecutively number the 64 antenna ports corresponding to the two CSI-RS resources. Finally, the network side device determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0289] The correspondence between the REs occupied by two CSI-RS resources in (1 slot, 1 PRB) and each antenna port can be shown in FIG4 .

[0290] Next, the network-side device transmits the CSI-RS to the UE on each antenna port corresponding to the two CSI-RS resources, 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.

[0291] The UE receives the CSI-RS transmitted by the network-side device on each antenna port corresponding to the two CSI-RS resources.

[0292] Based on the configured (N1, N2) = (8, 4), the UE determines the port number X = 2 * 8 * 4 = 64 of the CSI-RS resources used for channel measurement. Based on the above resource configuration information of the two CSI-RS resources, the UE uses the first formula to consecutively number the 64 antenna ports corresponding to the two CSI-RS resources. Finally, the UE determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0293] 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 PMI row in the CSI report corresponds one-to-one to each antenna port corresponding to the two CSI-RS resources.

[0294] Example 2:

[0295] The network-side device configures a CSI report using the high-level parameter CSI-ReportConfig. CSI-ReportConfig contains (N1, N2) = (8, 4), which indicates the port number X of the CSI-RS resource used for channel measurement is 2*8*4 = 64. The CSI-ResourceConfig for channel measurement associated with the CSI report includes two CSI-RS resources. The number of antenna ports corresponding to each of the two CSI-RS resources is 32 (i.e., N = 32). The type of the CDM groups corresponding to the two CSI-RS resources is cdm8-FD2-TD4. The number of CDM groups corresponding to the two CSI-RS resources is 4 (j = 0, 1, 2, 3). The number of REs included in the CDM groups corresponding to the two CSI-RS resources is 8 (s = 0, 1, ..., 7). The resource IDs of the two CSI-RS resources are 1 and 2, respectively.

[0296] The network side device arranges the two CSI-RS resources in ascending order of their resource IDs to determine their resource sequence number k, that is, the resource sequence number k=0 of the CSI-RS resource with resource ID=1, and the resource sequence number k=1 of the CSI-RS resource with resource ID=2.

[0297] The network-side device calculates the antenna port offset values ​​corresponding to the two CSI-RS resources based on the above formula 1, where 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.

[0298] Based on the resource configuration information of the above two CSI-RS resources, the network side device uses the above first 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 uses the first formula to consecutively number the 64 antenna ports corresponding to the two CSI-RS resources. Finally, the network side device determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0299] The correspondence between the REs occupied by 2 CSI-RS resources in (1 slot, 1 PRB) and each antenna port can be shown in FIG13 .

[0300] Next, the network-side device transmits the CSI-RS to the UE on each antenna port corresponding to the two CSI-RS resources, 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.

[0301] The UE receives the CSI-RS transmitted by the network-side device on each antenna port corresponding to the two CSI-RS resources.

[0302] Based on the configured (N1, N2) = (8, 4), the UE determines the port number X = 2 * 8 * 4 = 64 of the CSI-RS resources used for channel measurement. Based on the above resource configuration information of the two CSI-RS resources, the UE uses the first formula to consecutively number the 64 antenna ports corresponding to the two CSI-RS resources. Finally, the UE determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0303] 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 PMI row in the CSI report corresponds one-to-one to each antenna port corresponding to the two CSI-RS resources.

[0304] If there are two CSI-RS resources and the CSI-RS in one CSI-RS resource cannot be transmitted, the UE generates a CSI report based on the successfully received CSI-RS transmitted by the network-side device on each antenna port corresponding to one CSI-RS resource, and each PMI row in the CSI report corresponds one-to-one to each antenna port corresponding to the one CSI-RS resource; alternatively, the UE does not report the CSI report.

[0305] Example 3:

[0306] The network-side device configures a CSI report using the high-level parameter CSI-ReportConfig. CSI-ReportConfig contains (N1, N2) = (8, 4), which indicates the port number X of the CSI-RS resources used for channel measurement is 2*8*4 = 64. The CSI-ResourceConfig for channel measurement associated with the CSI report includes two CSI-RS resources. The number of antenna ports corresponding to each of the two CSI-RS resources is 32 (i.e., N = 32). The type of the CDM groups corresponding to the two CSI-RS resources is cdm8-FD2-TD4. The number of CDM groups corresponding to the two CSI-RS resources is 4 (j = 0, 1, 2, 3). The number of REs included in the CDM groups corresponding to the two CSI-RS resources is 8 (s = 0, 1, ..., 7). The resource IDs of the 22 CSI-RS resources are 1 and 2, respectively.

[0307] The network side device arranges the two CSI-RS resources in ascending order of their resource IDs to determine their resource sequence number k, that is, the resource sequence number k=0 of the CSI-RS resource with resource ID=1, and the resource sequence number k=1 of the CSI-RS resource with resource ID=2.

[0308] Based on the resource configuration information of the above two CSI-RS resources, the network side device uses the above second 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 uses the second formula to consecutively number the 64 antenna ports corresponding to the two CSI-RS resources. Finally, the network side device determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0309] The correspondence between the REs occupied by two CSI-RS resources in (1 slot, 1 PRB) and each antenna port can be shown in Figure 5, where the resource sequence number k=0 of the CSI-RS resource with resource ID=1, and the resource sequence number k=1 of the CSI-RS resource with resource ID=2.

[0310] Next, the network-side device transmits the CSI-RS to the UE on each antenna port corresponding to the two CSI-RS resources, 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.

[0311] The UE receives the CSI-RS transmitted by the network-side device on each antenna port corresponding to the two CSI-RS resources.

[0312] Based on the configured (N1, N2) = (8, 4), the UE determines the port number X = 2*8*4 = 64 of the CSI-RS resources used for channel measurement. Based on the above resource configuration information of the two CSI-RS resources, the UE uses the second formula to consecutively number the 64 antenna ports corresponding to the two CSI-RS resources. Finally, the UE determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0313] 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 PMI row in the CSI report corresponds one-to-one to the 64 antenna ports corresponding to the two CSI-RS resources.

[0314] Example 4:

[0315] The network-side device configures a CSI report through the high-level parameter CSI-ReportConfig. The preset field X in the resource configuration information of the CSI-RS resource for channel measurement associated with the CSI report is configured as X=64 (X indicates the total number of antenna ports corresponding to multiple CSI-RS resources for channel measurement). The CSI-ResourceConfig contains three CSI-RS resources, and the number of antenna ports corresponding to each of the three CSI-RS resources is 32, 16, and 16, respectively.

[0316] The network-side device determines the resource sequence number k for the three CSI-RS resources based on the frequency domain position and time domain position occupied by each of the three CSI-RS resources. The network-side device first sorts the three CSI-RS resources in the frequency domain according to the CRB index and subcarrier index corresponding to the three CSI-RS resources in ascending order. Then, the network-side device continues to sort the three CSI-RS resources in the time domain according to the slot index corresponding to the three CSI-RS resources in ascending order, determining that the resource sequence numbers of the three CSI-RS resources are 0, 1, and 2, respectively. That is, the network-side device numbers the resource sequence numbers of the three CSI-RS resources in the frequency domain (CRB index and subcarrier index in ascending order) and then in the time domain (slot index in ascending order).

[0317] Based on the resource configuration information of the above three CSI-RS resources, the network side device uses the above third formula to calculate the antenna port numbers of the 64 antenna ports corresponding to the three CSI-RS resources. That is, the network side device uses the third formula to consecutively number the 64 antenna ports corresponding to the three CSI-RS resources. Finally, the network side device determines the 64 antenna ports corresponding to the three CSI-RS resources.

[0318] The correspondence between the REs occupied by 3 CSI-RS resources in (1 slot, 1 PRB) and each antenna port can be shown in FIG6 .

[0319] Next, the network-side device transmits the CSI-RS to the UE on each antenna port corresponding to the three CSI-RS resources, that is, the network-side device maps the CSI-RS of each antenna port corresponding to the three CSI-RS resources to the antenna port with the same antenna port number for transmission.

[0320] The UE receives the CSI-RS transmitted by the network-side device on each antenna port corresponding to the three CSI-RS resources.

[0321] Based on the configured X=64, the UE determines that the number of ports of the CSI-RS resources used for channel measurement is 64. Based on the above resource configuration information of the three CSI-RS resources, the UE uses the third formula to consecutively number the 64 antenna ports corresponding to the three CSI-RS resources. Finally, the UE determines the 64 antenna ports corresponding to the three CSI-RS resources.

[0322] 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 3 CSI-RS resources, and each PMI row in the CSI report corresponds one-to-one to the 64 antenna ports corresponding to the 3 CSI-RS resources.

[0323] Example 5:

[0324] The network-side device configures a CSI report using the high-level parameter CSI-ReportConfig. CSI-ReportConfig contains (N1, N2) = (8, 4), which indicates the port number X of the CSI-RS resources used for channel measurement is 2*8*4 = 64. The CSI-ResourceConfig for channel measurement associated with the CSI report includes two CSI-RS resources. The number of antenna ports corresponding to each of the two CSI-RS resources is 32 (i.e., N = 32). The type of the CDM groups corresponding to the two CSI-RS resources is cdm8-FD2-TD4. The number of CDM groups corresponding to the two CSI-RS resources is 4 (j = 0, 1, 2, 3). The number of REs included in the CDM groups corresponding to the two CSI-RS resources is 8 (s = 0, 1, ..., 7). The resource IDs of the 22 CSI-RS resources are 1 and 2, respectively.

[0325] The network side device arranges the two CSI-RS resources in ascending order of their resource IDs to determine their resource sequence number k, that is, the resource sequence number k=0 of the CSI-RS resource with resource ID=1, and the resource sequence number k=1 of the CSI-RS resource with resource ID=2.

[0326] 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 uses the fourth formula or the fifth formula to consecutively number the 64 antenna ports corresponding to the two CSI-RS resources. Finally, the network side device determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0327] The correspondence between the REs occupied by two CSI-RS resources in (1 slot, 1 PRB) and each antenna port can be shown in Figure 7, where the resource sequence number k=0 of the CSI-RS resource with resource ID=1, and the resource sequence number k=1 of the CSI-RS resource with resource ID=2.

[0328] Next, the network-side device transmits the CSI-RS to the UE on each antenna port corresponding to the two CSI-RS resources, 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.

[0329] The UE receives the CSI-RS transmitted by the network-side device on each antenna port corresponding to the two CSI-RS resources.

[0330] The UE determines the port number X = 2 * 8 * 4 = 64 of the CSI-RS resources used for channel measurement based on the configured (N1, N2) = (8, 4). Based on the resource configuration information of the two CSI-RS resources, the UE uses the fourth formula or the fifth formula to consecutively number the 64 antenna ports corresponding to the two CSI-RS resources. Finally, the UE determines the 64 antenna ports corresponding to the two CSI-RS resources.

[0331] 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 PMI row in the CSI report corresponds one-to-one to the 64 antenna ports corresponding to the two CSI-RS resources.

[0332] It should be understood that, although the various steps in the above flow chart are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the above flow chart may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0333] In one embodiment, as shown in FIG14 , an information transmission device is provided for use in a network-side device, the device comprising:

[0334] A determining module 1401 is configured to determine antenna ports corresponding to respective CSI-RS resources, where each CSI-RS resource corresponds to a different antenna port;

[0335] The transmission module 1402 is configured to transmit a CSI-RS to a UE on each antenna port corresponding to the multiple CSI-RS resources, where the CSI-RS is used by the UE to generate a CSI report based on the CSI-RS.

[0336] In one embodiment, the transmission module 1402 is further used to send the port number of the CSI-RS resources for channel measurement associated with the CSI report to the UE, and the port number is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0337] In one embodiment, the determining module 1401 is specifically configured to determine each of the antenna ports according to resource configuration information of the multiple CSI-RS resources and / or a resource sequence number of each of the CSI-RS resources.

[0338] In one embodiment, the antenna port serial number of each antenna port is a consecutive positive integer.

[0339] In one embodiment, the determination module 1401 is specifically used to obtain, for each of the CSI-RS resources, the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information; and determine each of the antenna ports based on the resource configuration information of the multiple CSI-RS resources and the antenna port offset value corresponding to each of the CSI-RS resources.

[0340] In one embodiment, the determining module 1401 is specifically configured to determine, for each CSI-RS resource, an antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0341] p=δ+s+j*L+Δp

[0342] 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 s, j, L, and Δp are obtained based on the resource configuration information.

[0343] In one embodiment, the antenna port offset value corresponding to each CSI-RS resource is different, and the difference between the antenna port offset values ​​corresponding to the two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or, the antenna port offset value corresponding to each CSI-RS resource is different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource sequence number of each CSI-RS resource.

[0344] In one embodiment, the determining module 1401 is specifically configured to determine, for each CSI-RS resource, an antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0345] p=δ+s+j*L+k*N

[0346] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0347] In one embodiment, the determining module 1401 is specifically configured to determine, for each CSI-RS resource, an antenna port p corresponding to the CSI-RS resource according to a third formula, where the third formula is:

[0348]

[0349] Wherein, 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 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 i-th CSI-RS resource in the multiple CSI-RS resources, and the s k 、j k , L k and N i It is obtained based on the resource configuration information.

[0350] In one of the embodiments, the multiple antenna ports corresponding to each of the CSI-RS resources are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0351] In one embodiment, the absolute value of the difference between the smallest antenna port numbers in the two groups of antenna ports corresponding to each of the CSI-RS resources is equal to half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0352] In one embodiment, the determining module 1401 is specifically configured to determine, for each CSI-RS resource, an antenna port p corresponding to the CSI-RS resource according to a fourth formula, where the fourth formula is:

[0353]

[0354] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0355] In one embodiment, the determining module 1401 is specifically configured to determine, for each CSI-RS resource, an antenna port p corresponding to the CSI-RS resource according to a fifth formula, where the fifth formula is:

[0356]

[0357] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0358] In one of the embodiments, 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 for channel measurement associated with the CSI report.

[0359] In one embodiment, the determining module 1401 is further configured to determine a resource sequence number of each of the CSI-RS resources according to a resource ID of each of the CSI-RS resources.

[0360] In one embodiment, the determination module 1401 is further specifically configured to sort the resource IDs of the CSI-RS resources in ascending or descending order to obtain a sorting sequence; and use the position number of the CSI-RS resource in the sorting sequence as the resource number of the CSI-RS resource.

[0361] In one embodiment, the determining module 1401 is further configured to determine a resource sequence number of each of the CSI-RS resources based on a frequency domain position and a time domain position occupied by each of the CSI-RS resources.

[0362] In one embodiment, the determination module 1401 is further specifically used to first sort each of the CSI-RS resources in the frequency domain according to the CRB index and subcarrier index corresponding to each of the CSI-RS resources in ascending order, and then continue to sort each of the CSI-RS resources in the time domain according to the slot index corresponding to each of the CSI-RS resources in ascending order to obtain a first sorting result, and determine the resource sequence number of each of the CSI-RS resources based on the first sorting result; or, first sort each of the CSI-RS resources in the time domain according to the slot index corresponding to each of the CSI-RS resources in ascending order, and then continue to sort each of the CSI-RS resources in the frequency domain according to the CRB index and subcarrier index corresponding to each of the CSI-RS resources in ascending order to obtain a second sorting result, and determine the resource sequence number of each of the CSI-RS resources based on the second sorting result.

[0363] In one embodiment, the apparatus further comprises:

[0364] The receiving module is configured to receive a CSI report sent by the UE, where the CSI report is generated by the UE based on a successfully received CSI-RS.

[0365] For the specific definition of the information transmission device for network-side devices, please refer to the definition of the information transmission method for network-side devices above and will not be repeated here. Each module in the above-mentioned information transmission device can be implemented in whole or in part through software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the network-side device in hardware form, or can be stored in the memory of the network-side device in software form, so that the processor can call and execute the corresponding operations of each of the above modules.

[0366] In one embodiment, as shown in FIG15 , an information transmission device is provided for a UE, the device including:

[0367] A receiving module 1501 is configured to receive a 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 each CSI-RS resource corresponds to a different antenna port;

[0368] The processing module 1502 is 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.

[0369] In one embodiment, the apparatus further comprises:

[0370] a receiving module, configured to receive, from the network side device, a port number of CSI-RS resources for channel measurement associated with the CSI report, where the port number is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources;

[0371] The processing module 1502 is specifically configured to determine each antenna port according to the number of ports and the CSI-RS.

[0372] In one embodiment, the processing module 1502 is specifically configured to determine each of the antenna ports according to resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or a resource sequence number of each of the CSI-RS resources.

[0373] In one embodiment, the antenna port serial number of each antenna port is a consecutive positive integer.

[0374] In one embodiment, the processing module 1502 is specifically used to obtain, for each of the CSI-RS resources, the antenna port offset value corresponding to the CSI-RS resource from the resource configuration information; and determine each of the antenna ports based on the resource configuration information of the multiple CSI-RS resources and the antenna port offset value corresponding to each of the CSI-RS resources.

[0375] In one embodiment, the processing module 1502 is specifically configured to determine, for each CSI-RS resource, an antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0376] p=δ+s+j*L+Δp

[0377] 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 s, j, L, and Δp are obtained based on the resource configuration information.

[0378] In one embodiment, the antenna port offset value corresponding to each CSI-RS resource is different, and the difference between the antenna port offset values ​​corresponding to the two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or, the antenna port offset value corresponding to each CSI-RS resource is different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource sequence number of each CSI-RS resource.

[0379] In one embodiment, the processing module 1502 is specifically configured to determine, for each CSI-RS resource, an antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0380] p=δ+s+j*L+k*N

[0381] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0382] In one embodiment, the processing module 1502 is specifically configured to determine, for each CSI-RS resource, an antenna port p corresponding to the CSI-RS resource according to a third formula, where the third formula is:

[0383]

[0384] Wherein, 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 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 i-th CSI-RS resource in the multiple CSI-RS resources, and the s k 、j k , L k and N i It is obtained based on the resource configuration information.

[0385] In one of the embodiments, the multiple antenna ports corresponding to each of the CSI-RS resources are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0386] In one embodiment, the absolute value of the difference between the smallest antenna port numbers in the two groups of antenna ports corresponding to each of the CSI-RS resources is equal to half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0387] In one embodiment, the processing module 1502 is specifically configured to determine, for each CSI-RS resource, an antenna port p corresponding to the CSI-RS resource according to a fourth formula, where the fourth formula is:

[0388]

[0389] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0390] In one embodiment, the processing module 1502 is specifically configured to determine, for each CSI-RS resource, an antenna port p corresponding to the CSI-RS resource according to a fifth formula, where the fifth formula is:

[0391]

[0392] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0393] In one of the embodiments, 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 for channel measurement associated with the CSI report.

[0394] In one embodiment, the processing module 1502 is further configured to determine a resource sequence number of each of the CSI-RS resources according to a resource ID of each of the CSI-RS resources.

[0395] In one embodiment, the processing module 1502 is further specifically configured to sort the resource IDs of the CSI-RS resources in ascending or descending order to obtain a sorting sequence; and use the position number of the CSI-RS resource in the sorting sequence as the resource number of the CSI-RS resource.

[0396] In one embodiment, the processing module 1502 is further configured to determine a resource sequence number of each of the CSI-RS resources based on a frequency domain position and a time domain position occupied by each of the CSI-RS resources.

[0397] In one embodiment, the processing module 1502 is further specifically used to first sort each of the CSI-RS resources in the frequency domain according to the CRB index and subcarrier index corresponding to each of the CSI-RS resources in ascending order, and then continue to sort each of the CSI-RS resources in the time domain according to the slot index corresponding to each of the CSI-RS resources in ascending order to obtain a first sorting result, and determine the resource sequence number of each of the CSI-RS resources based on the first sorting result; or, first sort each of the CSI-RS resources in the time domain according to the slot index corresponding to each of the CSI-RS resources in ascending order, and then continue to sort each of the CSI-RS resources in the frequency domain according to the CRB index and subcarrier index corresponding to each of the CSI-RS resources in ascending order to obtain a second sorting result, and determine the resource sequence number of each of the CSI-RS resources based on the second sorting result.

[0398] For the specific definition of the information transmission device for the UE, please refer to the definition of the information transmission method for the UE above, and will not be repeated here. Each module in the above-mentioned information transmission device can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the UE in hardware form, or can be stored in the memory of the UE in software form, so that the processor can call and execute the corresponding operations of each of the above modules.

[0399] Figure 16 is a schematic diagram of the structure of a network-side device provided in 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 used to receive and send data under the control of the processor 1600. The memory 1620 is used to store computer programs.

[0400] In FIG16 , the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits such as one or more processors represented by processor 1600 and memory represented by memory 1620. The bus architecture may also link various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and are not further described herein. The bus interface provides an interface.

[0401] The transceiver 1610 may include multiple components, namely, a transmitter and a receiver, and provides a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, 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.

[0402] The processor 1600 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor 1600 may also adopt a multi-core architecture.

[0403] The processor 1600 calls the computer program stored in the memory 1620 to execute the following steps according to the obtained executable instructions:

[0404] Determine antenna ports corresponding to respective CSI-RS resources, where each CSI-RS resource corresponds to a different antenna port;

[0405] The transceiver is controlled to transmit a CSI-RS to a UE on each antenna port corresponding to the plurality of CSI-RS resources, where the CSI-RS is used by the UE to generate a CSI report based on the CSI-RS.

[0406] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and further perform the following operations:

[0407] The transceiver 1610 is controlled to send the port number of the CSI-RS resources for channel measurement associated with the CSI report to the UE, where the port number is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0408] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0409] The antenna ports are determined according to the resource configuration information of the multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource.

[0410] In one embodiment, the antenna port serial number of each antenna port is a consecutive positive integer.

[0411] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0412] For each of the CSI-RS resources, obtaining an antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0413] Each of the antenna ports is determined according to resource configuration information of the multiple CSI-RS resources and an antenna port offset value corresponding to each of the CSI-RS resources.

[0414] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0415] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0416] p=δ+s+j*L+Δp

[0417] 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 s, j, L, and Δp are obtained based on the resource configuration information.

[0418] 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 the two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0419] The antenna port offset value corresponding to each CSI-RS resource is different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource sequence number of each CSI-RS resource.

[0420] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0421] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0422] p=δ+s+j*L+k*N

[0423] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0424] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0425] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to a third formula, where:

[0426]

[0427] Wherein, 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 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 i-th CSI-RS resource in the multiple CSI-RS resources, and the s k 、j k , L k and N i It is obtained based on the resource configuration information.

[0428] In one of the embodiments, the multiple antenna ports corresponding to each of the CSI-RS resources are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0429] In one embodiment, the absolute value of the difference between the smallest antenna port numbers in the two groups of antenna ports corresponding to each of the CSI-RS resources is equal to half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0430] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0431] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fourth formula, where:

[0432]

[0433] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0434] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0435] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fifth formula, where:

[0436]

[0437] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0438] In one of the embodiments, 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 for channel measurement associated with the CSI report.

[0439] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and further perform the following operations:

[0440] According to the resource ID of each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0441] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0442] Sorting the CSI-RS resources in ascending or descending order to obtain a sorted sequence;

[0443] The position sequence number of the CSI-RS resource in the sorting sequence is used as the resource sequence number of the CSI-RS resource.

[0444] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and further perform the following operations:

[0445] Based on the frequency domain position and time domain position occupied by each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0446] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and specifically perform the following operations:

[0447] First, sorting each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order, and then continuing to sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order to obtain a first sorting result, and determining the resource sequence number of each CSI-RS resource according to the first sorting result; or,

[0448] First, sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order, and then continue to sort each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order to obtain a second sorting result, and determine the resource sequence number of each CSI-RS resource according to the second sorting result.

[0449] In one embodiment, the processor 1600 is configured to read the computer program in the memory 1620 and further perform the following operations:

[0450] The transceiver 1610 is controlled to receive a CSI report sent by the UE, where the CSI report is generated by the UE based on the successfully received CSI-RS.

[0451] Figure 17 is a schematic diagram of the structure of a user equipment (UE) provided in an embodiment of the present application. The UE may include a processor 1700, a transceiver 1710, and a memory 1720. The transceiver 1710 is configured to receive and transmit data under the control of the processor 1700, and the memory 1720 is configured to store computer programs.

[0452] In FIG17 , the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits such as one or more processors represented by processor 1700 and memory represented by memory 1720. The bus architecture may also link various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and are not further described herein. The bus interface provides an interface.

[0453] The transceiver 1710 may include multiple components, namely, a transmitter and a receiver, and provides a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, 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 performing operations.

[0454] 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). The processor 1700 may also adopt a multi-core architecture.

[0455] The processor 1700 calls the program stored in the memory 1720 to execute the following steps according to the obtained executable instructions:

[0456] Controlling the transceiver 1710 to receive a 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, where each CSI-RS resource corresponds to a different antenna port;

[0457] Each antenna port is determined according to the CSI-RS, and a CSI report is generated according to each antenna port and the CSI-RS.

[0458] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and further perform the following operations:

[0459] Controlling the transceiver 1710 to receive the number of ports of the CSI-RS resources for channel measurement associated with the CSI report and 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;

[0460] The processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0461] The antenna ports are determined according to the number of ports and the CSI-RS.

[0462] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0463] The antenna ports are determined according to resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or a resource sequence number of each CSI-RS resource.

[0464] In one embodiment, the antenna port serial number of each antenna port is a consecutive positive integer.

[0465] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0466] For each of the CSI-RS resources, obtaining an antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0467] Each of the antenna ports is determined according to resource configuration information of the multiple CSI-RS resources and an antenna port offset value corresponding to each of the CSI-RS resources.

[0468] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0469] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0470] p=δ+s+j*L+Δp

[0471] 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 s, j, L, and Δp are obtained based on the resource configuration information.

[0472] 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 the two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0473] The antenna port offset value corresponding to each CSI-RS resource is different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource sequence number of each CSI-RS resource.

[0474] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0475] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0476] p=δ+s+j*L+k*N

[0477] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0478] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0479] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to a third formula, where:

[0480]

[0481] Wherein, 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 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 i-th CSI-RS resource in the multiple CSI-RS resources, and the s k 、j k , L k and N i It is obtained based on the resource configuration information.

[0482] In one of the embodiments, the multiple antenna ports corresponding to each of the CSI-RS resources are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0483] In one embodiment, the absolute value of the difference between the smallest antenna port numbers in the two groups of antenna ports corresponding to each of the CSI-RS resources is equal to half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0484] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0485] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fourth formula, where:

[0486]

[0487] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0488] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0489] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fifth formula, where:

[0490]

[0491] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0492] In one of the embodiments, 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 for channel measurement associated with the CSI report.

[0493] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and further perform the following operations:

[0494] According to the resource ID of each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0495] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0496] Sorting the CSI-RS resources in ascending or descending order to obtain a sorted sequence;

[0497] The position sequence number of the CSI-RS resource in the sorting sequence is used as the resource sequence number of the CSI-RS resource.

[0498] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and further perform the following operations:

[0499] Based on the frequency domain position and time domain position occupied by each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0500] In one embodiment, the processor 1700 is configured to read the computer program in the memory 1720 and specifically perform the following operations:

[0501] First, sorting each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order, and then continuing to sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order to obtain a first sorting result, and determining the resource sequence number of each CSI-RS resource according to the first sorting result; or,

[0502] First, sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order, and then continue to sort each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order to obtain a second sorting result, and determine the resource sequence number of each CSI-RS resource according to the second sorting result.

[0503] In one embodiment, an information transmission system is provided, including a network-side device shown in FIG16 and a user equipment UE shown in FIG17 ;

[0504] The network side device is used to execute the steps of the method described in any embodiment of the above-mentioned information transmission method for network side devices, which will not be repeated here.

[0505] The UE is used to execute the steps of the method described in any embodiment of the above-mentioned information transmission method for UE, which will not be repeated here.

[0506] In one embodiment, a computer-readable storage medium is provided, which can be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic storage (such as floppy disks, hard disks, tapes, magneto-optical disks (MO), etc.), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSDs), etc.).

[0507] 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:

[0508] Determine antenna ports corresponding to respective CSI-RS resources, where each CSI-RS resource corresponds to a different antenna port;

[0509] A CSI-RS is transmitted to a UE on each antenna port corresponding to the multiple CSI-RS resources, and the CSI-RS is used by the UE to generate a CSI report based on the CSI-RS.

[0510] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0511] The port number of the CSI-RS resources for channel measurement associated with the CSI report is sent to the UE, where the port number is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0512] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0513] The antenna ports are determined according to the resource configuration information of the multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource.

[0514] In one embodiment, the antenna port serial number of each antenna port is a consecutive positive integer.

[0515] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0516] For each of the CSI-RS resources, obtaining an antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0517] Each of the antenna ports is determined according to resource configuration information of the multiple CSI-RS resources and an antenna port offset value corresponding to each of the CSI-RS resources.

[0518] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0519] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0520] p=δ+s+j*L+Δp

[0521] 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 s, j, L, and Δp are obtained based on the resource configuration information.

[0522] 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 the two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0523] The antenna port offset value corresponding to each CSI-RS resource is different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource sequence number of each CSI-RS resource.

[0524] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0525] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0526] p=δ+s+j*L+k*N

[0527] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0528] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0529] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to a third formula, where:

[0530]

[0531] Wherein, 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 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 i-th CSI-RS resource in the multiple CSI-RS resources, and the s k 、j k , L k and N i It is obtained based on the resource configuration information.

[0532] In one of the embodiments, the multiple antenna ports corresponding to each of the CSI-RS resources are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0533] In one embodiment, the absolute value of the difference between the smallest antenna port numbers in the two groups of antenna ports corresponding to each of the CSI-RS resources is equal to half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0534] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0535] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fourth formula, where:

[0536]

[0537] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0538] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0539] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fifth formula, where:

[0540]

[0541] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0542] In one of the embodiments, 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 for channel measurement associated with the CSI report.

[0543] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0544] According to the resource ID of each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0545] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0546] Sorting the CSI-RS resources in ascending or descending order to obtain a sorted sequence;

[0547] The position sequence number of the CSI-RS resource in the sorting sequence is used as the resource sequence number of the CSI-RS resource.

[0548] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0549] Based on the frequency domain position and time domain position occupied by each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0550] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0551] First, sorting each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order, and then continuing to sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order to obtain a first sorting result, and determining the resource sequence number of each CSI-RS resource according to the first sorting result; or,

[0552] First, sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order, and then continue to sort each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order to obtain a second sorting result, and determine the resource sequence number of each CSI-RS resource according to the second sorting result.

[0553] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0554] A CSI report is received from the UE, where the CSI report is generated by the UE based on a successfully received CSI-RS.

[0555] 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:

[0556] receiving a 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 each CSI-RS resource corresponds to a different antenna port;

[0557] Each antenna port is determined according to the CSI-RS, and a CSI report is generated according to each antenna port and the CSI-RS.

[0558] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0559] receiving, from the network side device, a port number of CSI-RS resources for channel measurement associated with the CSI report, where the port number is equal to a total number of antenna ports corresponding to the multiple CSI-RS resources;

[0560] The determining each of the antenna ports according to the CSI-RS includes:

[0561] The antenna ports are determined according to the number of ports and the CSI-RS.

[0562] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0563] The antenna ports are determined according to resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or a resource sequence number of each CSI-RS resource.

[0564] In one embodiment, the antenna port serial number of each antenna port is a consecutive positive integer.

[0565] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0566] For each of the CSI-RS resources, obtaining an antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0567] Each of the antenna ports is determined according to resource configuration information of the multiple CSI-RS resources and an antenna port offset value corresponding to each of the CSI-RS resources.

[0568] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0569] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a first formula, where the first formula is:

[0570] p=δ+s+j*L+Δp

[0571] 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 s, j, L, and Δp are obtained based on the resource configuration information.

[0572] 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 the two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0573] The antenna port offset value corresponding to each CSI-RS resource is different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource sequence number of each CSI-RS resource.

[0574] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0575] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0576] p=δ+s+j*L+k*N

[0577] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0578] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0579] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to a third formula, where:

[0580]

[0581] Wherein, 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 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 in the multiple CSI-RS resources, and the s k 、j k , L k and N i It is obtained based on the resource configuration information.

[0582] In one of the embodiments, the multiple antenna ports corresponding to each of the CSI-RS resources are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0583] In one embodiment, the absolute value of the difference between the smallest antenna port numbers in the two groups of antenna ports corresponding to each of the CSI-RS resources is equal to half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0584] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0585] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fourth formula, where:

[0586]

[0587] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0588] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0589] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fifth formula, where:

[0590]

[0591] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0592] In one of the embodiments, 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 for channel measurement associated with the CSI report.

[0593] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0594] According to the resource ID of each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0595] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0596] Sorting the CSI-RS resources in ascending or descending order to obtain a sorted sequence;

[0597] The position sequence number of the CSI-RS resource in the sorting sequence is used as the resource sequence number of the CSI-RS resource.

[0598] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0599] Based on the frequency domain position and time domain position occupied by each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0600] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0601] First, sorting each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order, and then continuing to sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order to obtain a first sorting result, and determining the resource sequence number of each CSI-RS resource according to the first sorting result; or,

[0602] First, sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order, and then continue to sort each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order to obtain a second sorting result, and determine the resource sequence number of each CSI-RS resource according to the second sorting result.

[0603] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0604] Determine antenna ports corresponding to respective CSI-RS resources, where each CSI-RS resource corresponds to a different antenna port;

[0605] A CSI-RS is transmitted to a UE on each antenna port corresponding to the multiple CSI-RS resources, and the CSI-RS is used by the UE to generate a CSI report based on the CSI-RS.

[0606] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0607] The port number of the CSI-RS resources for channel measurement associated with the CSI report is sent to the UE, where the port number is equal to the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0608] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0609] The antenna ports are determined according to the resource configuration information of the multiple CSI-RS resources and / or the resource sequence number of each CSI-RS resource.

[0610] In one embodiment, the antenna port serial number of each antenna port is a consecutive positive integer.

[0611] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0612] For each of the CSI-RS resources, obtaining an antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0613] Each of the antenna ports is determined according to resource configuration information of the multiple CSI-RS resources and an antenna port offset value corresponding to each of the CSI-RS resources.

[0614] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0615] For each of the CSI-RS resources, an antenna port p corresponding to the CSI-RS resource is determined according to a first formula, where the first formula is:

[0616] p=δ+s+j*L+Δp

[0617] 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 s, j, L, and Δp are obtained based on the resource configuration information.

[0618] 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 the two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0619] The antenna port offset value corresponding to each CSI-RS resource is different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource sequence number of each CSI-RS resource.

[0620] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0621] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0622] p=δ+s+j*L+k*N

[0623] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0624] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0625] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to a third formula, where:

[0626]

[0627] Wherein, 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 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 i-th CSI-RS resource in the multiple CSI-RS resources, and the s k 、j k , L k and N i It is obtained based on the resource configuration information.

[0628] In one of the embodiments, the multiple antenna ports corresponding to each of the CSI-RS resources are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0629] In one embodiment, the absolute value of the difference between the smallest antenna port numbers in the two groups of antenna ports corresponding to each of the CSI-RS resources is equal to half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0630] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0631] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fourth formula, where:

[0632]

[0633] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0634] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0635] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fifth formula, where:

[0636]

[0637] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0638] In one of the embodiments, 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 for channel measurement associated with the CSI report.

[0639] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0640] According to the resource ID of each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0641] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0642] Sorting the CSI-RS resources in ascending or descending order to obtain a sorted sequence;

[0643] The position sequence number of the CSI-RS resource in the sorting sequence is used as the resource sequence number of the CSI-RS resource.

[0644] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0645] Based on the frequency domain position and time domain position occupied by each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0646] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0647] First, sorting each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order, and then continuing to sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order to obtain a first sorting result, and determining the resource sequence number of each CSI-RS resource according to the first sorting result; or,

[0648] First, sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order, and then continue to sort each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order to obtain a second sorting result, and determine the resource sequence number of each CSI-RS resource according to the second sorting result.

[0649] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0650] A CSI report is received from the UE, where the CSI report is generated by the UE based on a successfully received CSI-RS.

[0651] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0652] receiving a 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 each CSI-RS resource corresponds to a different antenna port;

[0653] Each antenna port is determined according to the CSI-RS, and a CSI report is generated according to each antenna port and the CSI-RS.

[0654] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0655] receiving, from the network side device, a port number of CSI-RS resources for channel measurement associated with the CSI report, where the port number is equal to a total number of antenna ports corresponding to the multiple CSI-RS resources;

[0656] The determining each of the antenna ports according to the CSI-RS includes:

[0657] The antenna ports are determined according to the number of ports and the CSI-RS.

[0658] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0659] The antenna ports are determined according to resource configuration information of the multiple CSI-RS resources corresponding to the CSI-RS and / or a resource sequence number of each CSI-RS resource.

[0660] In one embodiment, the antenna port serial number of each antenna port is a consecutive positive integer.

[0661] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0662] For each of the CSI-RS resources, obtaining an antenna port offset value corresponding to the CSI-RS resource from the resource configuration information;

[0663] Each of the antenna ports is determined according to resource configuration information of the multiple CSI-RS resources and an antenna port offset value corresponding to each of the CSI-RS resources.

[0664] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0665] For each of the CSI-RS resources, an antenna port p corresponding to the CSI-RS resource is determined according to a first formula, where the first formula is:

[0666] p=δ+s+j*L+Δp

[0667] 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 s, j, L, and Δp are obtained based on the resource configuration information.

[0668] 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 the two CSI-RS resources is related to the number of antenna ports corresponding to the two CSI-RS resources; or,

[0669] The antenna port offset value corresponding to each CSI-RS resource is different, and the antenna port offset value corresponding to each CSI-RS resource is related to the resource sequence number of each CSI-RS resource.

[0670] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0671] For each CSI-RS resource, determine the antenna port p corresponding to the CSI-RS resource according to a second formula, where the second formula is:

[0672] p=δ+s+j*L+k*N

[0673] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0674] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0675] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to a third formula, where:

[0676]

[0677] Wherein, 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 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 i-th CSI-RS resource in the multiple CSI-RS resources, and the s k 、j k , L k and N i It is obtained based on the resource configuration information.

[0678] In one of the embodiments, the multiple antenna ports corresponding to each of the CSI-RS resources are divided into two groups, and the antenna port serial numbers of the multiple antenna ports in each group are consecutive positive integers.

[0679] In one embodiment, the absolute value of the difference between the smallest antenna port numbers in the two groups of antenna ports corresponding to each of the CSI-RS resources is equal to half of the total number of antenna ports corresponding to the multiple CSI-RS resources.

[0680] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0681] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fourth formula, where:

[0682]

[0683] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

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

[0685] For each CSI-RS resource, the antenna port p corresponding to the CSI-RS resource is determined according to the fifth formula, where:

[0686]

[0687] Wherein, δ is a preset constant, k is the resource sequence number of the CSI-RS resource, k = 0, 1, ..., K-1, K is the resource 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 s, j, L, and N are obtained based on the resource configuration information.

[0688] In one of the embodiments, 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 for channel measurement associated with the CSI report.

[0689] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0690] According to the resource ID of each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

[0691] In one embodiment, when the computer program is executed by a processor, the following steps are specifically implemented:

[0692] Sorting the CSI-RS resources in ascending or descending order to obtain a sorted sequence;

[0693] The position sequence number of the CSI-RS resource in the sorting sequence is used as the resource sequence number of the CSI-RS resource.

[0694] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0695] Based on the frequency domain position and time domain position occupied by each CSI-RS resource, a resource sequence number of each CSI-RS resource is determined.

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

[0697] First, sorting each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order, and then continuing to sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order to obtain a first sorting result, and determining the resource sequence number of each CSI-RS resource according to the first sorting result; or,

[0698] First, sort each CSI-RS resource in the time domain according to the slot index corresponding to each CSI-RS resource in ascending order, and then continue to sort each CSI-RS resource in the frequency domain according to the CRB index and subcarrier index corresponding to each CSI-RS resource in ascending order to obtain a second sorting result, and determine the resource sequence number of each CSI-RS resource according to the second sorting result.

[0699] Figure 18 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 1800 shown in Figure 18 includes a processor 1810, which can call and run a computer program from a memory to implement the method according to the embodiment of the present application.

[0700] In some embodiments, as shown in FIG18 , the chip 1800 may further include a memory 1820 , wherein the processor 1810 may call and execute a computer program from the memory 1820 to implement the method in the embodiment of the present application.

[0701] The memory 1820 may be a separate device independent of the processor 1810 , or may be integrated into the processor 1810 .

[0702] In some embodiments, the chip 1800 may further include an input interface 1830. The processor 1810 may control the input interface 1830 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0703] In some embodiments, the chip 1800 may further include an output interface 1840. The processor 1810 may control the output interface 1840 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0704] In some embodiments, the chip 1800 can be applied to the network side device or UE in the embodiments of the present application, and the chip 1800 can implement the corresponding processes implemented in the various methods in the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0705] It should be understood that the chip 1800 mentioned in the embodiment of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0706] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0707] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0708] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

[0709] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An information transmission method, wherein, For a network-side device, the method includes: Determine the antenna port corresponding to each of a plurality of CSI-RS resources, where the antenna port corresponding to each CSI-RS resource is different; Transmit CSI-RS 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.

2. The method according to claim 1, wherein, The method further includes: 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.

3. The method according to claim 1, wherein, The determining the antenna port 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, wherein, 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, wherein 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, where 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, 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.

7. The method according to claim 5, 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 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, wherein 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, where 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, 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 of the CSI-RS resources includes: 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: where δ is a preset constant, k is the resource index 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 of the CSI-RS resources includes: 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: 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, 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 of the CSI-RS resources includes: 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: 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 resource associated with the CSI report for channel measurement.

15. The method according to any one of claims 3-13, wherein, The method further includes: Determining the resource serial number of each CSI-RS resource according to the resource ID of each CSI-RS resource.

16. The method according to claim 15, 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.

17. The method according to any one of claims 3-13, wherein, 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.

18. The method according to claim 17, wherein, 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.

19. The method according to any one of claims 1 to 18, wherein The method further includes: Receive the 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, wherein, For the UE, the method includes: Receive the CSI-RS sent by the network-side device, where the CSI-RS is transmitted on each antenna port corresponding to multiple CSI-RS resources, and the antenna ports corresponding to each CSI-RS resource are different; Determine each antenna port according to the CSI-RS, and generate a CSI report according to each antenna port and the CSI-RS.

21. The method according to claim 20, wherein The method further includes: 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; The determining each antenna port according to the CSI-RS includes: Determine each antenna port according to the number of ports and the CSI-RS.

22. The method according to claim 20, wherein The determining each antenna port according to the CSI-RS includes: Determine 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.

23. The method according to claim 22, wherein, The antenna port numbers of each antenna port are consecutive positive integers.

24. The method according to claim 23, wherein, The determining 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 includes: For each of the CSI-RS resources, 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 multiple CSI-RS resources and the antenna port offset value corresponding to each of the CSI-RS resources.

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 value corresponding to each of the CSI-RS resources includes: 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: 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, 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.

26. The method according to claim 24, wherein 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.

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 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: 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.

28. 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 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: 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 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 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.

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 sequence number of each CSI-RS resource includes: 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: 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 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 sequence number of each CSI-RS resource includes: 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: 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 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 for channel measurement associated with the CSI report.

34. The method according to any one of claims 22-32, wherein, The method further includes: Determining the resource sequence 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 sequence number of each CSI-RS resource according to the resource ID of each CSI-RS resource includes: Sorting in ascending or descending order according to the resource IDs of the CSI-RS resources to obtain a sorted sequence; Using the position sequence number of the CSI-RS resource in the sorted sequence as the resource sequence number of the CSI-RS resource.

36. The method according to any one of claims 22-32, wherein, The method further includes: Determining the resource sequence number of each CSI-RS resource based on the frequency domain position and time domain position occupied by each CSI-RS resource.

37. The method according to claim 36, wherein, Determining the resource sequence number of each CSI-RS resource based on the frequency domain position and time domain position occupied by each CSI-RS resource includes: First, sorting 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 continuing 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 determining the resource sequence number of each CSI-RS resource according to the first sorting result; or, First, sort each of 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 each of 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 sequence numbers of each of the CSI-RS resources according to the second sorting result.

38. An information transmission device, wherein, For a network-side device, the apparatus includes: A determination module, 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; A transmission module, 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.

39. An information transmission device, wherein, 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 each antenna port corresponding to a plurality of CSI-RS resources, and the antenna port corresponding to each CSI-RS resource is different; 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.

40. A network-side device, wherein, Including a memory, a transceiver, and a processor: The memory is configured to store a computer program; The transceiver is configured to transmit and receive data under the control of the processor; The processor is configured to read the computer program in the memory and perform the following operations: 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; Control the transceiver 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.

41. A user equipment, wherein, Including a memory, a transceiver, and a processor: The memory is configured to store a computer program; The transceiver is configured to transmit and receive data under the control of the processor; The processor is configured to read the computer program in the memory and perform the following operations: Control the transceiver to receive 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 port corresponding to each CSI-RS resource is different; 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.

42. An information transmission system, wherein, 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, wherein, 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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