Codebook structure configuration, reporting method, device, apparatus, and storage medium

Abstract

The application discloses a codebook structure configuration and reporting method, device, equipment and storage medium, and relates to the field of mobile communication. The method comprises the following steps: receiving first configuration information, wherein the first configuration information is used for configuring the codebook structure type of frequency domain basis vector parameter information (210). The method can determine the codebook structure type of the frequency domain basis vector parameter information reported by the terminal.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mobile communication, in particular to a codebook structure configuration and reporting method and device, equipment and storage medium. BACKGROUND

[0002] In the mobile communication technology, it is discussed that an access network device uses four TRPs (Transmission Reception Point) to provide services for a terminal. The terminal can report CSI (Channel State Information) to the access network device by measuring the CSI-RS (Channel State Information Reference Signal) sent by each TRP, and the CSI includes FD basis (Frequency Domain basis).

[0003] In this case, the terminal can select to report the FD basis to the access network device using two codebook structures. One is that the terminal independently selects the FD basis for multiple TRPs, that is, the FD basis of multiple TRPs can be the same or different, and then the terminal needs to feed back the parameter information of the FD basis for each TRP. The other is that the terminal jointly selects the FD basis for multiple TRPs, that is, the FD basis of multiple TRPs can only be the same, and then the terminal feeds back one set of FD basis parameter information for multiple TRPs.

[0004] How to determine the codebook structure type used by the terminal to report the FD basis is a problem to be solved. SUMMARY

[0005] The embodiments of the present application provide a codebook structure configuration and reporting method, device, equipment and storage medium, which can determine the codebook structure type of the terminal reporting the frequency domain basis vector parameter information. The technical solution is as follows:

[0006] According to one aspect of the present application, a codebook structure configuration method is provided, which is executed by a terminal, and the method comprises:

[0007] Receiving first configuration information, the first configuration information is used to configure the codebook structure type of the frequency domain basis vector parameter information.

[0008] According to one aspect of the present application, a codebook structure configuration method is provided, which is executed by a network device, and the method comprises:

[0009] transmitting first configuration information, the first configuration information being used for configuring a codebook structure type of frequency domain basis vector parameter information.

[0010] According to an aspect of the present application, a codebook structure reporting method is provided, the method being performed by a terminal, and the method comprises:

[0011] transmitting a codebook structure type indication, the codebook structure type indication being used for indicating a codebook structure type of frequency domain basis vector parameter information.

[0012] According to an aspect of the present application, a codebook structure reporting method is provided, the method being performed by a network device, and the method comprises:

[0013] receiving a codebook structure type indication, the codebook structure type indication being used for indicating a codebook structure type of frequency domain basis vector parameter information.

[0014] According to an aspect of the present application, a codebook structure configuration apparatus is provided, the apparatus comprising:

[0015] a first receiving module, configured to receive first configuration information, the first configuration information being used for configuring a codebook structure type of frequency domain basis vector parameter information.

[0016] According to an aspect of the present application, a codebook structure configuration apparatus is provided, the apparatus comprising:

[0017] a second transmitting module, configured to transmit first configuration information, the first configuration information being used for configuring a codebook structure type of frequency domain basis vector parameter information.

[0018] According to an aspect of the present application, a codebook structure reporting apparatus is provided, the apparatus comprising:

[0019] a third transmitting module, configured to transmit a codebook structure type indication, the codebook structure type indication being used for indicating a codebook structure type of frequency domain basis vector parameter information.

[0020] According to an aspect of the present application, a codebook structure reporting apparatus is provided, the apparatus comprising:

[0021] a fourth receiving module, configured to receive a codebook structure type indication, the codebook structure type indication being used for indicating a codebook structure type of frequency domain basis vector parameter information.

[0022] According to an aspect of the present application, a terminal is provided, the terminal comprising: a processor; a transceiver connected to the processor; a memory used for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the codebook structure configuration method or the codebook structure reporting method according to the above aspects.

[0023] According to an aspect of the present application, a network device is provided, comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the codebook structure configuration method or the codebook structure reporting method of the above aspect.

[0024] According to an aspect of the present application, a computer readable storage medium is provided, the readable storage medium storing executable program code, the executable program code being loaded and executed by a processor to implement the codebook structure configuration method or the codebook structure configuration method or the codebook structure reporting method of the above aspect.

[0025] According to an aspect of the present application, a chip is provided, the chip comprising programmable logic circuit and / or program instructions, when the chip is running on a terminal or a network device, for implementing the codebook structure configuration method or the codebook structure configuration method or the codebook structure reporting method of the above aspect.

[0026] According to an aspect of the present application, a computer program product is provided, when the computer program product is executed by a processor of a terminal or a network device, for implementing the codebook structure configuration method or the codebook structure configuration method or the codebook structure reporting method of the above aspect.

[0027] The embodiments of the present application provide a codebook structure configuration or reporting method, a network device configures a codebook structure type of frequency domain basis vector parameter information for a terminal, so that the terminal reports frequency domain basis vector parameters according to the configured codebook structure type. Alternatively, the terminal selects a codebook structure type of frequency domain basis vector parameter by itself, and indicates the selected codebook structure type through a codebook structure type indication, so that the network device reads the frequency domain basis vector parameters reported by the terminal according to the codebook structure type. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 A block diagram of a communication system provided by an exemplary embodiment of the present application is shown;

[0030] Figure 2 A flowchart of a codebook structure configuration method provided by an exemplary embodiment of the present application is shown;

[0031] Figure 3 A flow chart of a configuration method of a codebook structure is shown according to an example embodiment of the present application;

[0032] Figure 4 A flow chart of a configuration method of a codebook structure is shown according to an example embodiment of the present application;

[0033] Figure 5 A flow chart of a configuration method of a codebook structure is shown according to an example embodiment of the present application;

[0034] Figure 6 A flow chart of a reporting method of a codebook structure is shown according to an example embodiment of the present application;

[0035] Figure 7 A flow chart of a reporting method of a codebook structure is shown according to an example embodiment of the present application;

[0036] Figure 8 A flow chart of a reporting method of a codebook structure is shown according to an example embodiment of the present application;

[0037] Figure 9 A flow chart of a reporting method of a codebook structure is shown according to an example embodiment of the present application;

[0038] Figure 10 A block diagram of a configuration device of a codebook structure is shown according to an example embodiment of the present application;

[0039] Figure 11 A block diagram of a configuration device of a codebook structure is shown according to an example embodiment of the present application;

[0040] Figure 12 A block diagram of a reporting device of a codebook structure is shown according to an example embodiment of the present application;

[0041] Figure 13 A block diagram of a reporting device of a codebook structure is shown according to an example embodiment of the present application;

[0042] Figure 14 A structure schematic diagram of a communication device is shown according to an example embodiment of the present application. DETAILED DESCRIPTION

[0043] For the purpose of making the object, technical scheme and advantages of the present application more clear, the present application embodiments will be described in further detail below with reference to the drawings.

[0044] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description herein refers to the accompanying drawings which show by way of example specific embodiments. The following description, in relation to the drawings, is not meant to limit the application to a particular embodiment unless so far as expressly stated otherwise. The following exemplary embodiments described herein are illustrative of a variety of devices and methods that consistent with aspects of the present application as detailed in the claims set forth below.

[0045] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0046] It is to be understood that the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It is to be understood that the term "and / or" as used herein encompasses all possible combinations of particular items listed apart from disjunctively one from another. It is further understood that the terms "comprise" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0047] Firstly, the terms used in the embodiments of the present application are described.

[0048] 1. Frequency domain basis vector

[0049] The frequency domain basis vector is a parameter value related to a subband corresponding to a CQI (Channel Quality Indicator) and / or a subband corresponding to a PMI (Precoding Matrix Indicator). For example, the frequency domain basis vector is the same as a subband corresponding to a CQI, or is half or 1 / R of a subband corresponding to a CQI, where R is an integer greater than 1.

[0050] The frequency domain basis vector is used to represent the variation of a channel in a frequency domain. The variation represented by the frequency domain basis vector is related to factors such as multipath delay. It can be understood that, when a signal is transmitted through a wireless channel, the signal can have different transmission delays on different transmission paths. The variation of a channel in a frequency domain caused by different transmission delays can be represented by different frequency domain basis vectors.

[0051] Optionally, the dimension of the frequency domain basis vector can be N fThat is, one frequency domain basis vector contains N f elements.

[0052] Optionally, the dimension of the frequency domain basis vector can be equal to the number of frequency domain units that need to perform CSI measurement. Since the number of frequency domain units that need to perform CSI measurement can be different at different time, the dimension of the frequency domain basis vector can also be different. In other words, the dimension of the frequency domain basis vector is variable.

[0053] Optionally, the dimension of the frequency domain basis vector can also be equal to the number of frequency domain units included in the available bandwidth of the terminal. The available bandwidth of the terminal can be configured by the network device. The available bandwidth of the terminal is a part or all of the system bandwidth. The available bandwidth of the terminal can also be referred to as a bandwidth part (BWP), which is not limited in the embodiments of the present application.

[0054] 2, reference signal, reference signal resource, reference signal resource set

[0055] The reference signal includes but is not limited to CSI-RS. The reference signal resource corresponds to at least one of the time domain resource, the frequency domain resource and the code domain resource of the reference signal. The reference signal resource set includes one or more reference signal resources.

[0056] Taking the CSI-RS resource as an example, the CSI-RS resource can be divided into non-zero power (NZP) CSI-RS resource and zero power (ZP) CSI-RS resource.

[0057] The CSI-RS resource can be configured by CSI reporting setting. The CSI reporting setting can configure a CSI-RS resource set used for channel measurement (CM). Optionally, the CSI reporting setting can also configure a CSI-RS resource set used for interference measurement (IM). Optionally, the CSI reporting setting can also configure a NZP CSI-RS resource set used for interference measurement.

[0058] The CSI reporting setting can be used to indicate a time domain behavior, a bandwidth, a format corresponding to a report quantity, and the like of CSI reporting. The time domain behavior includes, for example, periodic, semi-persistent, and aperiodic. The terminal can generate one CSI report based on one CSI reporting setting.

[0059] 3、CSI

[0060] For example, the CSI can include at least one of a precoding matrix indicator (PMI), a rank indication (RI), a channel quality indicator (CQI), a channel state information reference signal resource indicator (CRI), and a layer indicator (LI).

[0061] The application scenario of the present application is described as follows:

[0062] Figure 1 A block diagram of a communication system is shown, which can include a terminal 10 and a network device 20.

[0063] The number of terminals 10 is usually multiple, and one or more terminals 10 can be distributed in a cell managed by each network device 20. The terminal 10 can include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication functions, and various forms of user equipment (UE), mobile stations (MS), and the like. For ease of description, the devices mentioned above are collectively referred to as terminals in the embodiments of the present application.

[0064] The network device 20 is a device deployed in an access network to provide wireless communication functions for the terminal 10. For ease of description, the device mentioned above that provides wireless communication functions for the terminal 10 is collectively referred to as a network device in the embodiments of the present application. The network device 20 and the terminal 10 can establish a connection through an air interface, so as to communicate through the connection, including the interaction of signaling and data. The number of network devices 20 can be multiple, and two adjacent network devices 20 can also communicate through wired or wireless means. The terminal 10 can switch between different network devices 20, that is, establish a connection with different network devices 20.

[0065] For example, a network device 20 is deployed with multiple TRPs / RRHs, for example, the network device 20 corresponds to TRP1, TRP2, …, TRPn. The network device uses multiple TRPs / RRHs to communicate with the terminal. Or, the network device uses multiple TRPs / RRHs to provide services for the terminal.

[0066] The network device 20 can include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different wireless access technologies, the names of devices with network device functions may be different, for example, in a 5G NR system, it is called gNodeB or gNB. As communication technology evolves, the name of “network device” may change.

[0067] The technical solutions provided in the present application can be applied to various communication systems, for example, it can be Internet of Things (IoT), Narrow Band Internet of Things (NB-IoT), Long Term Evolution (LTE), it can also be a fifth generation (5G) communication system, it can also be a hybrid architecture of LTE and 5G, it can also be a 5G NR system and a new communication system that will appear in future communication development, etc. For example, a 6G communication system, a 7G communication system. The 5G communication system described in the present application can include at least one of a non-standalone (Non-Standalone, NSA) 5G communication system and a standalone (Standalone, SA) 5G communication system. The communication system can also be a public land mobile network (Public Land Mobile Network, PLMN) network, a device-to-device (Device-to-Device, D2D) network, a machine-to-machine (Machine to Machine, M2M) network, or other networks.

[0068] Figure 2 A flowchart of a method for configuring a codebook structure is shown, which can be applied to a terminal as shown in the example embodiment of the present application. Figure 1 The method includes at least part of the following content:

[0069] Step 210: receiving first configuration information, the first configuration information is used to configure the codebook structure type of the frequency domain basis vector (FD basis) parameter information.

[0070] Optionally, in the case that the terminal communicates with multiple TRPs of the network device, the network device sends first configuration information to the terminal to configure the terminal with a codebook structure type of the frequency domain basis vector parameter information. Or, in the case that multiple TRPs of the network device provide services for the terminal, the terminal receives the first configuration information sent by the network device, and the first configuration information includes the codebook structure type of the frequency domain basis vector parameter information.

[0071] The codebook structure type of the frequency domain basis vector parameter information is used to indicate the selection and reporting mode of the frequency domain basis vector parameter information.

[0072] Optionally, the codebook structure type includes two types: type 1 and type 2.

[0073] The codebook structure of type 1 reports one piece of frequency domain basis vector parameter information for different CMRs (Channel Measurement Resources).

[0074] The codebook structure of type 2 reports one piece of frequency domain basis vector parameter information for at least two CMRs.

[0075] The at least two CMRs can be all CMRs. Alternatively, the at least two CMRs can be at least two CMRs of all CMRs.

[0076] The at least two CMRs correspond to different NZP CSI-RS resources. And / or, the at least two CMRs correspond to different ports of one NZP CSI-RS resource.

[0077] The different CMRs correspond to different TRPs.

[0078] When the codebook structure type is type 1, the terminal reports one piece of frequency domain basis vector parameter information for different CMRs, i.e., when there are multiple CMRs, the terminal reports multiple pieces of frequency domain basis vector parameter information corresponding to the multiple CMRs respectively.

[0079] In type 1, the FD basis for different CMRs is reported respectively, i.e., multiple pieces of parameter information of the FD basis are reported.

[0080] For example, the terminal receives a first CSI-RS on a first CMR and a second CSI-RS on a second CMR, and the terminal reports one piece of frequency domain basis vector parameter information corresponding to the first CSI-RS and one piece of frequency domain basis vector parameter information corresponding to the second CSI-RS.

[0081] When the codebook structure type is type 2, the terminal reports one piece of frequency domain basis vector parameter information for different CMRs, i.e., when there are multiple CMRs, the terminal reports one piece of frequency domain basis vector parameter information corresponding to the multiple CMRs.

[0082] The FD basis for all CMRs in Type 2 is reported jointly, that is, a parameter information of the FD basis is reported. That is, a plurality of CMRs correspond to the same frequency domain basis vector parameter information.

[0083] For example, the terminal receives a first CSI-RS on a first CMR and a second CSI-RS on a second CMR, and the terminal reports a parameter information of a frequency domain basis vector corresponding to the first CSI-RS and the second CSI-RS.

[0084] That is, when the network device provides services for the terminal using a plurality of TRPs / RRHs, the network device configures a codebook structure type for the terminal. When the codebook structure type is Type 1, the terminal independently selects an FD basis for a plurality of TRPs, and the FD bases of the plurality of TRPs can be the same or different. The terminal feeds back the FD basis parameter information for each TRP respectively. When the codebook structure type is Type 2, the terminal jointly selects an FD basis for a plurality of TRPs, and the FD bases of the plurality of TRPs can only be the same. The terminal feeds back a parameter information of the FD basis for the plurality of TRPs.

[0085] Optionally, the frequency domain basis vector parameter information includes at least one of the following:

[0086] • The number of frequency domain basis vectors;

[0087] • The frequency domain basis vector index (FD basis index);

[0088] • The starting position of the frequency domain basis vector window (FD basis window).

[0089] Optionally, the first configuration information is carried in an RRC (Radio Resource Control) message, or the first configuration information is carried in a MAC CE (Medium Access Control Control Element) message.

[0090] Optionally, the terminal receives configuration information of the CSI-RS sent by the network device, and the configuration information of the CSI-RS includes the first configuration information.

[0091] The terminal selects a frequency domain basis vector according to the first configuration information, and feeds back the frequency domain basis vector parameter information to the network device.

[0092] To sum up, in the scheme provided by the embodiments of the present application, the network device configures the codebook structure type of the frequency domain basis vector parameter information for the terminal, so that the terminal reports the frequency domain basis vector parameter according to the configured codebook structure type. The transmission performance based on the multiple TRPs is improved, and the signaling overhead of CSI reporting is reduced.

[0093] Figure 3 A flowchart of a configuration method of a codebook structure provided by an example embodiment of the present application is shown. The example can be applied to the network device as shown in Figure 1 The method includes at least part of the following contents:

[0094] Step 220: sending first configuration information, the first configuration information being used to configure the codebook structure type of the frequency domain basis vector parameter information.

[0095] The network device can be an access network device.

[0096] Optionally, in the case that the terminal communicates with multiple TRPs of the network device, the network device sends the first configuration information to the terminal, and configures the codebook structure type of the frequency domain basis vector parameter information for the terminal.

[0097] Optionally, the codebook structure type includes two types: type 1 and type 2.

[0098] The codebook structure of type 1 reports one piece of frequency domain basis vector parameter information for different CMRs respectively.

[0099] The codebook structure of type 2 reports one piece of frequency domain basis vector parameter information for at least two CMRs.

[0100] Optionally, different CMRs correspond to different TRPs.

[0101] Optionally, the frequency domain basis vector parameter information includes at least one of the following:

[0102] The number of frequency domain basis vectors;

[0103] The frequency domain basis index (FD basis index);

[0104] The starting position of the frequency domain basis window (FD basis window).

[0105] Optionally, the first configuration information is carried in an RRC message, or the first configuration information is carried in a MAC CE message.

[0106] Optionally, the network device sends the configuration information of the CSI-RS to the terminal, and the configuration information of the CSI-RS includes the first configuration information.

[0107] To sum up, in the scheme provided by the embodiments of the present application, the network device configures the codebook structure type of the frequency domain basis vector parameter information for the terminal, so that the terminal reports the frequency domain basis vector parameter according to the configured codebook structure type. The transmission performance based on the multi-TRP is improved, and the signaling overhead of CSI reporting is reduced.

[0108] Figure 4 A flowchart of another configuration method of a codebook structure provided by an example embodiment of the present application is shown, which can be applied to the terminal and network device as shown in Figure 1 The method includes at least part of the following contents:

[0109] Step 310: The network device sends first configuration information to the terminal, and the first configuration information is used to configure the codebook structure type of the frequency domain basis vector parameter information.

[0110] For example, the network device sends the CSI-RS configuration information to the terminal, and the CSI-RS configuration information includes the configuration information (first configuration information) of the codebook structure type. For example, the configuration information of the codebook structure type is 0, which indicates that the type of the codebook structure type is type 1, and the configuration information of the codebook structure type is 1, which indicates that the type of the codebook structure type is type 2.

[0111] Optionally, the network device can also configure the CMR for the terminal.

[0112] As shown in Figure 5 The method can further include:

[0113] Step 311: The network device sends second configuration information, and the second configuration information is used to configure at least two CMRs. The terminal receives the second configuration information. The network device sends the second configuration information to the terminal, and the terminal receives the second configuration information sent by the network device.

[0114] The at least two CMRs correspond to different NZP CSI-RS resources. And / or, the at least two CMRs correspond to different ports of one NZP CSI-RS resource.

[0115] For example, the second configuration information sent by the network device is used to configure the first CMR, the second CMR, and the third CMR, wherein the first CMR corresponds to the first NZP CSI-RS resource, the second CMR corresponds to the first port of the second NZP CSI-RS resource, and the third CMR corresponds to the second port of the second NZP CSI-RS resource. Then, the first CMR corresponds to different NZP CSI-RS resources from the second CMR and the third CMR, and the second CMR and the third CMR correspond to different ports of the same NZP CSI-RS resource.

[0116] Optionally, different CMRs correspond to different TRPs. The terminal receives CSI-RSs transmitted by different TRPs on different CMRs.

[0117] That is, each CMR corresponds to a different NZP CSI-RS resource, or each CMR corresponds to a different port group of multiple ports of the same NZP CSI-RS resource.

[0118] Optionally, the execution order of steps 310 and 311 is not limited, and the two steps can also be executed simultaneously.

[0119] Optionally, the first configuration information is carried in an RRC message or a MAC CE message. Optionally, the first configuration information and the second configuration information can be carried in the same message, or the first configuration information and the second configuration information can be carried in different messages.

[0120] Optionally, the network device configures at least two CMRs for the terminal, and the terminal receives CSI-RSs on the at least two CMRs.

[0121] For example, the network device configures a first CMR and a second CMR for the terminal, the first CMR is a first NZP CSI-RS resource, and the second CMR is a second NZP CSI-RS resource. Alternatively, the first CMR is port 1 of the first NZP CSI-RS resource, and the second CMR is port 2 of the first NZP CSI-RS resource. The network device transmits a first CSI-RS on the first CMR and a second CSI-RS on the second CMR, and the terminal receives the two CSI-RSs on the first CMR and the second CMR, respectively, according to the second configuration information of the CMR.

[0122] Step 320: The network device transmits a CSI-RS to the terminal.

[0123] The network device transmits a CSI-RS according to the configured CMR.

[0124] Optionally, the network device transmits multiple CSI-RSs using multiple TRPs. Optionally, the multiple TRPs transmit the CSI-RSs using different CMRs.

[0125] The terminal receives the CSI-RS transmitted by the network device and generates CSI.

[0126] The terminal receives CSI-RSs transmitted by multiple TRPs, and generates frequency domain basis vector parameter information according to the CMR and the codebook structure type configured by the network device.

[0127] Step 330: The terminal transmits the CSI to the network device, and the CSI includes the frequency domain basis vector parameter information.

[0128] The terminal transmits the frequency domain basis vector parameter information according to the first configuration information. That is, the terminal generates the frequency domain basis vector parameter information according to the codebook structure type configured by the network device, and reports the frequency domain basis vector parameter information to the network device.

[0129] The terminal generates the CSI according to the codebook structure type configured by the network device, the CSI including the frequency domain basis vector parameter information, and reports the CSI to the network device.

[0130] The terminal transmits the frequency domain basis vector parameter information according to the first configuration information and the second configuration information; wherein the second configuration information is used to configure at least two CMRs. That is, the terminal generates the frequency domain basis vector parameter information according to the codebook structure type configured by the network device and the CMR configured by the network device, and reports the frequency domain basis vector parameter information to the network device.

[0131] The terminal generates the CSI according to the codebook structure type configured by the network device and the CMR configured by the network device, the CSI including the frequency domain basis vector parameter information, and reports the CSI to the network device.

[0132] For example, the first configuration information indicates that the frequency domain basis vector parameter information is reported using the type 1 codebook structure type, and the second configuration information configures the first CMR and the second CMR, then the terminal generates the first frequency domain basis vector parameter information according to the CSI-RS received on the first CMR; generates the second frequency domain basis vector parameter information according to the CSI-RS received on the second CMR; and the terminal reports the first frequency domain basis vector parameter information and the second frequency domain basis vector parameter information to the network device respectively.

[0133] For another example, the first configuration information indicates that the frequency domain basis vector parameter information is reported using the type 2 codebook structure type, and the second configuration information configures the first CMR and the second CMR, then the terminal generates one frequency domain basis vector parameter information according to the CSI-RS received on the first CMR and the CSI-RS received on the second CMR, and the terminal reports the frequency domain basis vector parameter information to the network device.

[0134] In summary, in the codebook structure configuration method provided by the embodiments of the present application, the network device configures the codebook structure type and the CMR for the terminal, and the terminal determines the frequency domain basis vector parameter information according to the codebook structure type and the CMR configured by the network device and reports the frequency domain basis vector parameter information to the network device. When the network device configures the codebook structure type as type 1, the terminal reports one frequency domain basis vector parameter information for different CMRs; when the network device configures the codebook structure type as type 2, the terminal reports one frequency domain basis vector parameter information for at least two CMRs. The transmission performance based on the multi-TRP is improved while reducing the signaling overhead of CSI reporting.

[0135] Figure 6A flow chart of a codebook structure reporting method provided by one example embodiment of the present application is shown, which can be applied to the terminal shown in FIG. 1, for example. The method includes at least part of the following contents: Figure 1

[0136] Step 230: sending a codebook structure type indication, the codebook structure type indication being used to indicate a codebook structure type of the frequency domain basis vector parameter information.

[0137] Optionally, in the case that the terminal communicates with multiple TRPs of the network device, the terminal selects a codebook structure type of the frequency domain basis vector parameter information, and reports the selected codebook structure type to the network device through the codebook structure type indication. Or, in the case that multiple TRPs of the network device provide services for the terminal, the terminal reports the codebook structure type indication to the network device, the codebook structure type indication indicating the codebook structure type of the frequency domain basis vector parameter information.

[0138] Optionally, the terminal sends CSI to the network device, the CSI including the codebook structure type indication. The CSI is carried in the PUSCH (Physical Uplink Shared Channel) or the PUCCH (Physical Uplink Control Channel), and the codebook structure type indication is carried in the PUSCH or the PUCCH.

[0139] Optionally, the CSI further includes the frequency domain basis vector parameter information. That is, the CSI includes the codebook structure type indication and the frequency domain basis vector parameter information, and the network device reads the frequency domain basis vector parameter information according to the codebook structure type indication.

[0140] Optionally, before step 230, the network device enables the codebook structure type indication bit in the CSI. The network device sends indication information to the terminal, the indication information being used to enable the codebook structure type indication field in the CSI, the indication information being carried in the RRC message or the MAC CE message. In the case that the network device enables the codebook structure type indication field in the CSI, the terminal sends the CSI to the network device, the CSI including the codebook structure type indication.

[0141] When the network device enables the codebook structure type indication field, the terminal uses the codebook structure type indication field to indicate to the network device which type of codebook structure type is used to report the frequency domain basis vector parameter information.

[0142] The codebook structure type of the frequency domain basis vector parameter information is used to indicate the selection and reporting manner of the frequency domain basis vector parameter information.

[0143] Optionally, the codebook structure type includes two types: type 1 and type 2.​

[0144] • Type 1 codebook structure reports one set of FD basis vector parameter information for each CMR.

[0145] • Type 2 codebook structure reports one set of FD basis vector parameter information for at least two CMRs.

[0146] Optionally, different CMRs correspond to different TRPs.

[0147] In which, the at least two CMRs can be all CMRs. Or, the at least two CMRs can be at least two CMRs in all CMRs.

[0148] When the terminal selects the codebook structure type 1, the terminal reports one set of FD basis vector parameter information for each CMR, that is, when there are multiple CMRs, the terminal reports multiple sets of FD basis vector parameter information corresponding to multiple CMRs respectively.

[0149] In type 1, the FD basis for different CMRs is reported respectively, that is, multiple sets of parameter information of FD basis are reported.

[0150] For example, the terminal receives the first CSI-RS on the first CMR and the second CSI-RS on the second CMR, and the terminal reports the codebook structure type indication: type 1, and reports one set of FD basis vector parameter information corresponding to the first CSI-RS, and reports one set of FD basis vector parameter information corresponding to the second CSI-RS.

[0151] When the terminal selects the codebook structure type 2, the terminal reports only one set of FD basis vector parameter information for different CMRs, that is, when there are multiple CMRs, the terminal reports one set of FD basis vector parameter information corresponding to multiple CMRs.

[0152] In type 2, the FD basis for all CMRs is reported jointly, that is, one set of parameter information of FD basis is reported.

[0153] For example, the terminal receives the first CSI-RS on the first CMR and the second CSI-RS on the second CMR, and the terminal reports the codebook structure type indication: type 2, and reports one set of FD basis vector parameter information corresponding to the first CSI-RS and the second CSI-RS.

[0154] That is, in the case that the network device provides services for the terminal using multiple TRPs / RRHs, the network device enables a codebook structure type indication bit in CSI, the terminal autonomously selects a codebook structure type of frequency domain basis vector parameter information, and indicates which type of codebook structure type is used to the network device by using the codebook structure type indication bit in CSI. When the codebook structure type selected by the terminal is type 1, the terminal independently selects the FD basis for multiple TRPs, and the FD basis of multiple TRPs can be the same or different. The terminal feeds back the FD basis parameter information for each TRP respectively. When the codebook structure type selected by the terminal is type 2, the terminal jointly selects the FD basis for multiple TRPs, and the FD basis of multiple TRPs can only be the same. The terminal feeds back one piece of FD basis parameter information for multiple TRPs.

[0155] Optionally, the frequency domain basis vector parameter information comprises at least one of the following:

[0156] • the number of frequency domain basis vectors;

[0157] • a frequency domain basis vector index (FD basis index);

[0158] • a frequency domain basis vector window (FD basis window) start position.

[0159] In summary, in the scheme provided by the embodiments of the present application, the terminal selects the codebook structure type of the frequency domain basis vector parameter by itself, and indicates the selected codebook structure type by reporting the codebook structure type indication, so that the network device reads the frequency domain basis vector parameter reported by the terminal according to the codebook structure type. The transmission performance based on multiple TRPs is improved, and the signaling overhead of CSI reporting is reduced.

[0160] Figure 7 A flowchart of a codebook structure reporting method provided by an example embodiment of the present application is shown, which can be applied to, for example, the network device shown in Figure 1 The method comprises at least part of the following contents:

[0161] Step 240: receiving a codebook structure type indication, the codebook structure type indication being used to indicate the codebook structure type of the frequency domain basis vector parameter information.

[0162] The network device can be an access network device.

[0163] The network device receives the codebook structure type indication sent by the terminal.

[0164] Optionally, in the case that the terminal communicates with multiple TRPs of the network device, the terminal selects a codebook structure type of the frequency domain basis vector parameter information, and reports the selected codebook structure type to the network device through a codebook structure type indication. Or, in the case that multiple TRPs of the network device provide services for the terminal, the terminal reports a codebook structure type indication to the network device, and the codebook structure type indication indicates the codebook structure type of the frequency domain basis vector parameter information.

[0165] That is, in the case that the terminal communicates with multiple TRPs of the network device, the network device receives the codebook structure type indication sent by the terminal. Or, in the case that the network device uses multiple TRPs to provide services for the terminal, the network device receives the codebook structure type indication sent by the terminal.

[0166] Optionally, the network device receives the CSI sent by the terminal, and the CSI includes the codebook structure type indication. The CSI is carried in the PUSCH or the PUCCH, and the codebook structure type indication is carried in the PUSCH or the PUCCH.

[0167] Optionally, the CSI further includes the frequency domain basis vector parameter information. That is, the CSI includes the codebook structure type indication and the frequency domain basis vector parameter information, and the network device reads the frequency domain basis vector parameter information according to the codebook structure type indication.

[0168] Optionally, before step 230, the network device enables the codebook structure type indication bit in the CSI. The network device sends indication information to the terminal, and the indication information is used to enable the codebook structure type indication field in the CSI. The indication information is carried in the RRC message or the MAC CE message. In the case that the network device enables the codebook structure type indication in the CSI, the terminal sends the CSI to the network device, and the CSI includes the codebook structure type indication.

[0169] Optionally, the codebook structure type includes two types: type 1 and type 2.

[0170] The codebook structure of type 1 reports one piece of frequency domain basis vector parameter information for different CMRs respectively.

[0171] The codebook structure of type 2 reports one piece of frequency domain basis vector parameter information for at least two CMRs.

[0172] Optionally, the frequency domain basis vector parameter information includes at least one of the following:

[0173] The number of frequency domain basis vectors;

[0174] The frequency domain basis index (FD basis index);

[0175] • FD basis vector window (FD basis window) start position.

[0176] In summary, in the scheme provided by the embodiments of the present application, the terminal selects a frequency domain basis vector parameter codebook structure type by itself, and indicates the selected codebook structure type by reporting a codebook structure type indication, so that the network device reads the frequency domain basis vector parameters reported by the terminal according to the codebook structure type, thereby improving the transmission performance based on multiple TRPs while reducing the signaling overhead of CSI reporting.

[0177] Figure 8 A flowchart of another reporting method of a codebook structure provided by an example embodiment of the present application is shown, which can be applied in the terminal and network device as shown, for example. Figure 1 The method includes at least part of the following contents:

[0178] Step 410: The network device sends a CSI-RS to the terminal.

[0179] The network device sends the CSI-RS according to the configured CMR.

[0180] Optionally, the network device sends multiple CSI-RSs using multiple TRPs respectively. Optionally, the multiple TRPs send the CSI-RSs using different CMRs.

[0181] The terminal receives the CSI-RS sent by the network device and generates CSI.

[0182] The terminal receives the CSI-RSs sent by the multiple TRPs respectively, and generates the frequency domain basis vector parameter information according to the CMR and the selected codebook structure type.

[0183] Optionally, before step 410, steps 401 and 402 can also be included, and the execution sequence of steps 401 and 402 is not limited, and the two steps can also be executed simultaneously.

[0184] As shown in Figure 9 The method can also include:

[0185] Step 401: The network device sends second configuration information, and the second configuration information is used to configure at least two CMRs. The terminal receives the second configuration information. The network device sends the second configuration information to the terminal, and the terminal receives the second configuration information sent by the network device.

[0186] The at least two CMRs correspond to different NZP CSI-RS resources. And / or, the at least two CMRs correspond to different ports of one NZP CSI-RS resource.

[0187] That is, each CMR is a different NZP CSI-RS resource, or each CMR corresponds to a different port group of multiple port pairs of the same NZP CSI-RS resource.

[0188] Optionally, the second configuration information is carried in an RRC message or a MAC CE message.

[0189] Optionally, the network device configures at least two CMRs for the terminal, and the terminal receives CSI-RSs on the at least two CMRs. The network device transmits the CSI-RSs using multiple TRPs on the at least two configured CMRs.

[0190] For example, the network device configures a first CMR and a second CMR for the terminal, the first CMR is a first NZP CSI-RS resource, and the second CMR is a second NZP CSI-RS resource. Alternatively, the first CMR is port 1 of the first NZP CSI-RS resource, and the second CMR is port 2 of the first NZP CSI-RS resource. The network device transmits a first CSI-RS on the first CMR and a second CSI-RS on the second CMR, and the terminal receives the two CSI-RSs on the first CMR and the second CMR, respectively, according to the second configuration information of the CMR.

[0191] Step 402: The network device enables codebook structure type indication in CSI.

[0192] The network device transmits indication information to the terminal, and the indication information is used to enable a codebook structure type indication field in CSI. The indication information is carried in an RRC message or a MAC CE message.

[0193] In a case where the terminal receives the indication information, the terminal autonomously selects a codebook structure type of frequency domain basis vector parameter information. And in reporting CSI, indicates the selected codebook structure type in a codebook structure type indication field of the CSI.

[0194] Step 420: The terminal transmits the codebook structure type indication to the network device.

[0195] The optional step 420 can refer to the explanation of step 230 in the embodiment shown in Figure 6

[0196] Step 430: The terminal transmits frequency domain basis vector parameter information to the network device.

[0197] The terminal receives CSI-RS and generates frequency domain basis vector parameter information according to the selected codebook structure type.

[0198] ​The terminal receives CSI-RS, generates frequency domain basis vector parameter information based on the selected codebook structure type and the second configuration information (CMR configuration information), and reports the frequency domain basis vector parameter information to the network device.

[0199] For example, if the second configuration information configures the first CMR and the second CMR, and the terminal selects to use the codebook structure type 1 to report the frequency domain basis vector parameter information, then the terminal generates the first frequency domain basis vector parameter information based on the CSI-RS received on the first CMR; generates the second frequency domain basis vector parameter information based on the CSI-RS received on the second CMR; and reports the first frequency domain basis vector parameter information and the second frequency domain basis vector parameter information to the network device respectively.

[0200] For example, if the second configuration information configures the first CMR and the second CMR, and the terminal selects to use the codebook structure type 2 to report the frequency domain basis vector parameter information, then the terminal generates a frequency domain basis vector parameter information based on the CSI-RS received on the first CMR and the CSI-RS received on the second CMR, and the terminal reports the frequency domain basis vector parameter information to the network device.

[0201] Optionally, the codebook structure type indicator and frequency domain basis vector parameter information can be carried in the CSI, such as... Figure 9 As shown, steps 420 and 430 can also be replaced by step 421.

[0202] Step 421: The terminal reports the CSI to the network device. The CSI includes a codebook structure type indicator and frequency domain basis vector parameter information.

[0203] Optionally, the CSI includes a first part (Part I) and a second part (Part II). The first part includes a codebook structure type indicator, and the second part includes frequency domain basis vector parameter information.

[0204] The payload size of the first part is fixed, while the information size of the second part is determined based on the information field of the first part. Optionally, the information field of the first part includes a codebook structure type indicator.

[0205] If the CSI consists of two parts, the codebook structure type indicator is contained in Part I, where the payload size of Part I is fixed, and the information size of Part II is determined based on the information in Part I. For example, if the codebook structure type indicator in Part I is codebook structure type 1, then the information size of Part II is larger, and vice versa.

[0206] For example, Part I includes CRI (CSI-RS Resource Indicator, CSI reference signal resource indicator), Rank indication information (Rank Indicator), etc.

[0207] For example, Part II contains information of PMI (Precoding Matrix Indicator, precoding matrix indicator), and the frequency domain basis vector parameter information is part of the PMI.

[0208] To sum up, in the codebook structure reporting method provided by the embodiments of the present application, the terminal autonomously selects a codebook structure type, the network device configures a CMR for the terminal, and the terminal determines and reports frequency domain basis vector parameter information to the network device according to the selected codebook structure type and the CMR configured by the network device. When the codebook structure type is type 1, the terminal reports one piece of frequency domain basis vector parameter information for different CMRs; when the codebook structure type is type 2, the terminal reports one piece of frequency domain basis vector parameter information for at least two CMRs. The transmission performance based on multiple TRPs is improved while reducing the signaling overhead of CSI reporting.

[0209] It should be noted that the above embodiments can be split into new embodiments, or combined with other embodiments to form new embodiments, and the present application does not limit the combination of embodiments.

[0210] Figure 10 A block diagram of a codebook structure configuration device provided by an exemplary embodiment of the present application is shown, referring to Figure 10 The device includes:

[0211] The first receiving module 502 is configured to receive first configuration information, and the first configuration information is used to configure a codebook structure type of frequency domain basis vector parameter information.

[0212] In an optional embodiment, the codebook structure type includes type 1 and type 2;

[0213] The codebook structure of type 1 reports one piece of frequency domain basis vector parameter information for different channel measurement resources CMR;

[0214] The codebook structure of type 2 reports one piece of frequency domain basis vector parameter information for at least two CMRs.

[0215] In an optional embodiment, the first receiving module 502 is configured to receive second configuration information, and the second configuration information is used to configure at least two CMRs.

[0216] In an optional embodiment, the at least two CMRs correspond to different non-zero power channel state information reference signals NZP CSI-RS resources.

[0217] and / or,

[0218] The at least two CMRs correspond to different ports of one NZP CSI-RS resource.

[0219] In an optional embodiment, the frequency domain basis vector parameter information comprises at least one of:

[0220] a number of frequency domain basis vectors;

[0221] a frequency domain basis vector index;

[0222] a frequency domain basis vector window starting position.

[0223] In an optional embodiment, the apparatus further comprises:

[0224] a first sending module 501 configured to send the frequency domain basis vector parameter information according to the first configuration information.

[0225] In an optional embodiment, the apparatus further comprises:

[0226] a first sending module 501 configured to send the frequency domain basis vector parameter information according to the first configuration information and the second configuration information.

[0227] Figure 11 A block diagram of a configuration apparatus of a codebook structure is shown, which is provided by one exemplary embodiment of the present application, and is shown in FIG. 5. Figure 11 The apparatus comprises:

[0228] a second sending module 503 configured to send first configuration information, the first configuration information being used to configure a codebook structure type of frequency domain basis vector parameter information.

[0229] In an optional embodiment, the codebook structure type comprises type 1 and type 2;

[0230] The codebook structure of type 1 reports one piece of frequency domain basis vector parameter information for different channel measurement resources CMRs respectively;

[0231] The codebook structure of type 2 reports one piece of frequency domain basis vector parameter information for at least two CMRs.

[0232] In an optional embodiment, the second sending module 503 is configured to send second configuration information, the second configuration information being used to configure at least two CMRs.

[0233] In an optional embodiment, the at least two CMRs correspond to different non-zero power channel state information reference signals NZP CSI-RS resources;

[0234] and / or,

[0235] The at least two CMRs correspond to different ports of one NZP CSI-RS resource.

[0236] In an optional embodiment, the frequency domain basis vector parameter information comprises at least one of:

[0237] a frequency domain basis vector number;

[0238] a frequency domain basis vector index;

[0239] a frequency domain basis vector window start position.

[0240] In an optional embodiment, the apparatus further comprises:

[0241] a second receiving module 504, configured to receive the frequency domain basis vector parameter information sent by the terminal according to the first configuration information.

[0242] In an optional embodiment, the apparatus further comprises:

[0243] a second receiving module 504, configured to receive the frequency domain basis vector parameter information sent by the terminal according to the first configuration information and the second configuration information.

[0244] Figure 12 A block diagram of a reporting apparatus of a codebook structure provided by one example embodiment of the present application is shown, referring to Figure 12 The apparatus comprises:

[0245] a third sending module 505, configured to send a codebook structure type indication, the codebook structure type indication being used to indicate a codebook structure type of the frequency domain basis vector parameter information.

[0246] In an optional embodiment, the codebook structure type comprises type 1 and type 2;

[0247] The codebook structure of the type 1 reports one piece of frequency domain basis vector parameter information respectively for different channel measurement resources CMRs;

[0248] The codebook structure of the type 2 reports one piece of frequency domain basis vector parameter information for at least two CMRs.

[0249] In an optional embodiment, the apparatus further comprises:

[0250] a third receiving module 506, configured to receive second configuration information, the second configuration information being used to configure at least two CMRs.

[0251] In an optional embodiment, the at least two CMRs correspond to different non-zero power channel state information reference signals NZP CSI-RS resources.

[0252] and / or,

[0253] The at least two CMRs correspond to different ports of one NZP CSI-RS resource.

[0254] In an optional embodiment, the frequency domain basis vector parameter information comprises at least one of:

[0255] a number of frequency domain basis vectors;

[0256] a frequency domain basis vector index;

[0257] a frequency domain basis vector window starting position.

[0258] In an optional embodiment, the third sending module 505 is configured to send channel state information (CSI), wherein the CSI comprises the codebook structure type indication.

[0259] In an optional embodiment, the CSI comprises a first part and a second part, wherein the first part comprises the codebook structure type indication, and the second part comprises the frequency domain basis vector parameter information.

[0260] In an optional embodiment, a payload size of the first part is fixed, and an information size of the second part is determined according to an information field of the first part.

[0261] Figure 13 FIG. 6 shows a block diagram of a codebook structure reporting apparatus according to an example embodiment of the present application. As shown in FIG. 6, the apparatus comprises: Figure 13

[0262] A fourth receiving module 508 is configured to receive a codebook structure type indication, wherein the codebook structure type indication is used to indicate a codebook structure type of frequency domain basis vector parameter information.

[0263] In an optional embodiment, the codebook structure type comprises type 1 and type 2.

[0264] The codebook structure of type 1 reports one piece of frequency domain basis vector parameter information for different channel measurement resources (CMRs) respectively.

[0265] The codebook structure of type 2 reports one piece of frequency domain basis vector parameter information for at least two CMRs.

[0266] In an optional embodiment, the apparatus further comprises:

[0267] A fourth sending module 507 is configured to send second configuration information, wherein the second configuration information is used to configure at least two CMRs.

[0268] ​In an optional embodiment, the at least two CMRs correspond to different non-zero power channel state information reference signal NZP CSI-RS resources.

[0269] and / or,

[0270] The at least two CMRs correspond to different ports of one NZP CSI-RS resource.

[0271] In an optional embodiment, the frequency domain basis vector parameter information comprises at least one of the following:

[0272] A number of frequency domain basis vectors;

[0273] A frequency domain basis vector index;

[0274] A frequency domain basis vector window starting position.

[0275] In an optional embodiment, the fourth receiving module 508 is configured to receive channel state information CSI, wherein the CSI comprises the codebook structure type indication.

[0276] In an optional embodiment, the CSI comprises a first part and a second part, wherein the first part comprises the codebook structure type indication, and the second part comprises the frequency domain basis vector parameter information.

[0277] In an optional embodiment, a payload size of the first part is fixed, and an information size of the second part is determined according to an information field of the first part.

[0278] It should be noted that the apparatus provided in the above embodiments, when realizing its functions, only takes the above-mentioned division of each functional module as an example, and in actual application, the above-mentioned functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above-described functions. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process is detailed in the method embodiments, which will not be described here.

[0279] Figure 14 A structure schematic diagram of a communication device provided by an example embodiment of the present application is shown, which comprises a processor 701, a receiver 702, a transmitter 703, a memory 704 and a bus 705.

[0280] The processor 701 comprises one or more than one processing core, and the processor 701 performs various functional applications and information processing by running software programs and modules.

[0281] The receiver 702 and the transmitter 703 can be implemented as one communication component, which can be one communication chip.

[0282] The memory 704 is connected to the processor 701 through the bus 705.

[0283] The memory 704 can be used to store at least one program code, and the processor 701 is configured to execute the at least one program code to implement the steps in the above method embodiments.

[0284] In addition, the communication device can be a terminal or a network device. The memory 704 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: a magnetic or optical disk, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic storage device, a flash memory, and a programmable read-only memory (PROM).

[0285] In an example embodiment, a computer readable storage medium is also provided, and the executable program code is stored in the readable storage medium, and the executable program code is loaded and executed by the processor to implement the codebook structure configuration method or the codebook structure reporting method performed by the communication device provided by each method embodiment.

[0286] In an example embodiment, a chip is provided, and the chip includes a programmable logic circuit and / or program instructions, and when the chip is running on a terminal or a network device, the chip is configured to implement the codebook structure configuration method or the codebook structure reporting method provided by each method embodiment.

[0287] In an example embodiment, a computer program product is provided, and when the computer program product is executed by the processor of the terminal or the network device, the computer program product is configured to implement the codebook structure configuration method or the codebook structure reporting method provided by each method embodiment.

[0288] Those skilled in the art can understand that all or part of the steps of the above embodiments can be completed by hardware, or by program instructions to instruct related hardware, and the program can be stored in a computer readable storage medium, and the storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0289] The above merely provides the optional embodiments of the present application, but does not intend to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for configuring a codebook structure, characterized in that, The method is executed by a terminal, and the method includes: Receive first configuration information, which is used to configure the codebook structure type of frequency domain basis vector parameter information; The codebook structure types include type 1 and type 2; The codebook structure of type 1 reports a frequency domain basis vector parameter information for different channel measurement resources (CMR); The codebook structure of type 2 reports a frequency domain basis vector parameter information for at least two CMRs.

2. The method according to claim 1, characterized in that, The method further includes: Receive second configuration information, which is used to configure at least two CMRs.

3. The method according to claim 2, characterized in that, The at least two CMRs correspond to different non-zero power channel state information reference signals (NZP CSI-RS) resources. And / or, The at least two CMRs correspond to different ports of an NZP CSI-RS resource.

4. The method according to any one of claims 1 to 3, characterized in that, The frequency domain basis vector parameter information includes at least one of the following: Number of frequency domain basis vectors; Frequency domain basis vector index; The starting position of the frequency domain basis vector window.

5. The method according to any one of claims 1 to 3, characterized in that, The method further includes: The frequency domain basis vector parameter information is sent according to the first configuration information.

6. The method according to claim 2 or 3, characterized in that, The method further includes: The frequency domain basis vector parameter information is sent according to the first configuration information and the second configuration information.

7. A method for configuring a codebook structure, characterized in that, The method is performed by a network device, and the method includes: Send first configuration information, which is used to configure the codebook structure type of frequency domain basis vector parameter information; The codebook structure types include type 1 and type 2; The codebook structure of type 1 reports a frequency domain basis vector parameter information for different channel measurement resources (CMR); The codebook structure of type 2 reports a frequency domain basis vector parameter information for at least two CMRs.

8. The method according to claim 7, characterized in that, The method further includes: Send second configuration information, which is used to configure at least two CMRs.

9. The method according to claim 8, characterized in that, The at least two CMRs correspond to different non-zero power channel state information reference signals (NZP CSI-RS) resources. And / or, The at least two CMRs correspond to different ports of an NZP CSI-RS resource.

10. The method according to any one of claims 7 to 9, characterized in that, The frequency domain basis vector parameter information includes at least one of the following: Number of frequency domain basis vectors; Frequency domain basis vector index; The starting position of the frequency domain basis vector window.

11. The method according to any one of claims 7 to 9, characterized in that, The method further includes: The receiving terminal sends the frequency domain basis vector parameter information according to the first configuration information.

12. The method according to claim 8 or 9, characterized in that, The method further includes: The receiving terminal sends the frequency domain basis vector parameter information according to the first configuration information and the second configuration information.

13. A method for reporting a codebook structure, characterized in that, The method is executed by a terminal, and the method includes: Send a codebook structure type indication, which is used to indicate the codebook structure type of the frequency domain basis vector parameter information; The codebook structure types include type 1 and type 2; The codebook structure of type 1 reports a frequency domain basis vector parameter information for different channel measurement resources (CMR); The codebook structure of type 2 reports a frequency domain basis vector parameter information for at least two CMRs.

14. The method according to claim 13, characterized in that, The method further includes: Receive second configuration information, which is used to configure at least two CMRs.

15. The method according to claim 14, characterized in that, The at least two CMRs correspond to different non-zero power channel state information reference signals (NZP CSI-RS) resources. And / or, The at least two CMRs correspond to different ports of an NZP CSI-RS resource.

16. The method according to any one of claims 13 to 15, characterized in that, The frequency domain basis vector parameter information includes at least one of the following: Number of frequency domain basis vectors; Frequency domain basis vector index; The starting position of the frequency domain basis vector window.

17. The method according to any one of claims 13 to 15, characterized in that, The transmission codebook structure type indication includes: Transmit Channel State Information (CSI), the CSI including the codebook structure type indication.

18. The method according to claim 17, characterized in that, The CSI comprises a first part and a second part. The first part includes the codebook structure type indicator, and the second part includes the frequency domain basis vector parameter information.

19. The method according to claim 18, characterized in that, The payload size of the first part is fixed, and the information size of the second part is determined based on the information domain of the first part.

20. A method for reporting codebook structures, characterized in that, The method is performed by a network device, and the method includes: Receive codebook structure type indication, the codebook structure type indication being used to indicate the codebook structure type of frequency domain basis vector parameter information; The codebook structure types include type 1 and type 2; The codebook structure of type 1 reports a frequency domain basis vector parameter information for different channel measurement resources (CMR); The codebook structure of type 2 reports a frequency domain basis vector parameter information for at least two CMRs.

21. The method according to claim 20, characterized in that, The method further includes: Send second configuration information, which is used to configure at least two CMRs.

22. The method according to claim 21, characterized in that, The at least two CMRs correspond to different non-zero power channel state information reference signals (NZP CSI-RS) resources. And / or, The at least two CMRs correspond to different ports of an NZP CSI-RS resource.

23. The method according to any one of claims 20 to 22, characterized in that, The frequency domain basis vector parameter information includes at least one of the following: Number of frequency domain basis vectors; Frequency domain basis vector index; The starting position of the frequency domain basis vector window.

24. The method according to any one of claims 20 to 22, characterized in that, The received codebook structure type indication includes: Receive channel state information (CSI), the CSI including the codebook structure type indication.

25. The method according to claim 24, characterized in that, The CSI comprises a first part and a second part. The first part includes the codebook structure type indicator, and the second part includes the frequency domain basis vector parameter information.

26. The method according to claim 25, characterized in that, The payload size of the first part is fixed, and the information size of the second part is determined based on the information domain of the first part.

27. A configuration device for a codebook structure, characterized in that, The device includes: The first receiving module is used to receive first configuration information, wherein the first configuration information is used to configure the codebook structure type of frequency domain basis vector parameter information; The codebook structure types include type 1 and type 2; The codebook structure of type 1 reports a frequency domain basis vector parameter information for different channel measurement resources (CMR); The codebook structure of type 2 reports a frequency domain basis vector parameter information for at least two CMRs.

28. A configuration device for a codebook structure, characterized in that, The device includes: The second sending module is used to send first configuration information, which is used to configure the codebook structure type of frequency domain basis vector parameter information. The codebook structure types include type 1 and type 2; The codebook structure of type 1 reports a frequency domain basis vector parameter information for different channel measurement resources (CMR); The codebook structure of type 2 reports a frequency domain basis vector parameter information for at least two CMRs.

29. A reporting device with a codebook structure, characterized in that, The device includes: The third transmitting module is used to transmit a codebook structure type indicator, which indicates the codebook structure type of the frequency domain basis vector parameter information. The codebook structure types include type 1 and type 2; The codebook structure of type 1 reports a frequency domain basis vector parameter information for different channel measurement resources (CMR); The codebook structure of type 2 reports a frequency domain basis vector parameter information for at least two CMRs.

30. A reporting device with a codebook structure, characterized in that, The device includes: The fourth receiving module is used to receive a codebook structure type indication, wherein the codebook structure type indication is used to indicate the codebook structure type of the frequency domain basis vector parameter information; The codebook structure types include type 1 and type 2; The codebook structure of type 1 reports a frequency domain basis vector parameter information for different channel measurement resources (CMR); The codebook structure of type 2 reports a frequency domain basis vector parameter information for at least two CMRs.

31. A terminal, characterized in that, The terminal includes: processor; A transceiver connected to the processor; The processor is configured to load and execute executable instructions to implement the configuration method of the codebook structure as described in any one of claims 1 to 6, or to implement the reporting method of the codebook structure as described in any one of claims 13 to 19.

32. A network device, characterized in that, The network device includes: processor; A transceiver connected to the processor; The processor is configured to load and execute executable instructions to implement the configuration method of the codebook structure as described in any one of claims 7 to 12, or to implement the reporting method of the codebook structure as described in any one of claims 20 to 26.

33. A computer-readable storage medium, characterized in that, The readable storage medium stores executable program code, which is loaded and executed by a processor to implement the configuration method of the codebook structure as described in any one of claims 1 to 12, or to implement the reporting method of the codebook structure as described in any one of claims 13 to 26.

34. A computer program product, characterized in that, When the computer program product is executed by the processor of a terminal or network device, it is used to implement the configuration method of the codebook structure as described in any one of claims 1 to 12, or to implement the reporting method of the codebook structure as described in any one of claims 13 to 26.

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