Method and apparatus for reporting channel state information

Abstract

Embodiments of the present application provide a channel state information reporting method and device. The method comprises: a terminal device receiving CSI-RS resource configuration and / or CSI reporting setting; the CSI-RS resource configuration comprises at least one CSI-RS resource set, each CSI-RS resource set comprising at least X CSI-RS resources and / or a CSI-RS resource group; the CSI reporting setting is related to the CSI-RS resource configuration; X is a positive integer greater than or equal to 1. According to the embodiments of the present application, when the network device adjusts the antenna configuration, the CSI-RS resource configuration and / or the CSI reporting setting are enhanced, so that the terminal device can efficiently and accurately perform CSI measurement.

Description

Method and device for reporting channel state information Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] With the increasing adoption of 5G (fifth-generation mobile communications) across various industries and its application in more geographic areas, the need for very high data rates and denser networks to handle more advanced services is driving the use of larger numbers of antennas and larger antenna arrays at 5G base stations. In the rapidly expanding new frequency bands, larger antenna arrays can enhance beam coverage and simultaneously serve the data needs of more users.

[0003] Therefore, the 5G Release 19 standardization work supports the enhancement of up to 128 antenna ports and / or digital ports. To assist base stations in sending data more accurately, the reporting and acquisition of Channel State Information (CSI) is crucial.

[0004] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.

[0005] Summary of the Invention

[0006] The inventors found that in the current traditional 5G network, CSI measurement reporting only supports the reception, measurement and reporting of CSI-RS (channel state information reference signal) resources for up to 32 ports. Therefore, the current CSI measurement reporting mechanism cannot support CSI measurement reporting for up to 128 ports, so that the base station side cannot fully obtain accurate channel state information of a larger number of antenna arrays. In addition, the expansion of the existing CSI measurement reporting framework is also very challenging, especially with the exponentially enhanced CSI reporting and feedback caused by the expansion of antenna ports. Therefore, the current standard urgently needs to make a series of enhancements to the existing standard solutions.

[0007] In response to at least one of the above problems or other similar problems, an embodiment of the present application provides a method and apparatus for reporting channel state information so that a terminal device can perform CSI measurement efficiently and accurately.

[0008] According to one aspect of an embodiment of the present application, a method for reporting channel state information is provided, including:

[0009] The terminal device receives CSI-RS resource configuration and / or CSI reporting settings;

[0010] The CSI-RS resource configuration includes at least one CSI-RS resource set, each of the CSI-RS resource sets including at least X CSI-RS resources and / or CSI-RS resource groups;

[0011] The CSI reporting setting is related to the CSI-RS resource configuration;

[0012] The X is a positive integer greater than or equal to 1.

[0013] According to another aspect of an embodiment of the present application, a channel state information reporting device is provided, which is configured in a terminal device, and includes:

[0014] a receiving unit configured to receive a CSI-RS resource configuration and / or a CSI reporting setting;

[0015] The CSI-RS resource configuration includes at least one CSI-RS resource set, each of the CSI-RS resource sets including at least X CSI-RS resources and / or CSI-RS resource groups;

[0016] The CSI reporting setting is related to the CSI-RS resource configuration;

[0017] The X is a positive integer greater than or equal to 1.

[0018] One of the beneficial effects of the embodiments of the present application is that: according to the embodiments of the present application, when the network device adjusts the antenna configuration, by enhancing the CSI-RS resource configuration and / or CSI reporting settings, the terminal device can perform CSI measurements efficiently and accurately.

[0019] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0020] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0021] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0023] FIG1 is a schematic diagram of a method for reporting channel state information according to an embodiment of the present application;

[0024] FIG2 is a schematic diagram of a CSI-RS resource set;

[0025] FIG3 is another schematic diagram of a CSI-RS resource set;

[0026] FIG3a is a schematic diagram of a CSI-RS resource set in a multi-panel case corresponding to FIG3;

[0027] FIG4 is another schematic diagram of a CSI-RS resource set;

[0028] FIG4a is a schematic diagram of a CSI-RS resource set in a multi-panel case corresponding to FIG4;

[0029] FIG5 is another schematic diagram of a CSI-RS resource set;

[0030] FIG6 is a schematic diagram of CSI-RS resource configuration;

[0031] FIG6 a is a schematic diagram of a CSI-RS resource set in a multi-panel case corresponding to FIG6 ;

[0032] FIG7 is another schematic diagram of CSI-RS resource configuration;

[0033] FIG7 a is a schematic diagram of a CSI-RS resource set in a multi-panel case corresponding to FIG7 ;

[0034] FIG8 is another schematic diagram of CSI-RS resource configuration;

[0035] FIG9 is a schematic diagram of a method for configuring channel state information according to an embodiment of the present application;

[0036] FIG10 is a schematic diagram of a device for reporting channel state information according to an embodiment of the present application;

[0037] FIG11 is a schematic diagram of a device for configuring channel state information according to an embodiment of the present application;

[0038] FIG12 is a schematic diagram of a communication system according to an embodiment of the present application;

[0039] FIG13 is a schematic diagram of a terminal device according to an embodiment of the present application;

[0040] FIG14 is a schematic diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0041] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0042] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0043] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0044] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0045] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), future 6G, etc., and / or other communication protocols currently known or to be developed in the future.

[0046] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to the communication network and provides services to the terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0047] Among them, base stations may include but are not limited to: NodeB (NodeB or NB), evolved NodeB (eNodeB or eNB) and 5G base station (gNB), IAB host, etc., and may also include remote radio head (RRH, Remote Radio Head), remote radio unit (RRU, Remote Radio Unit), relay (relay) or low-power node (such as femeto, pico, etc.). The term "base station" can include some or all of their functions. Each base station can provide communication coverage for a specific geographical area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0048] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and so on.

[0049] The terminal device may include but is not limited to the following devices: cellular phone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, cordless phone, smart phone, smart watch, digital camera, etc.

[0050] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.

[0051] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which can be a UE or one or more terminal devices as described above. Unless otherwise specified herein, "device" can refer to either network equipment or terminal equipment.

[0052] In mobile communication systems, terminal devices typically measure CSI based on instructions and configuration from network devices and then report the measured CSI to the network devices. When scheduling the terminal devices, the network devices can refer to this CSI to schedule the terminal devices for transmission using the appropriate physical resources and transmission method. Different terminal devices may experience different physical channel conditions. Using a CSI feedback mechanism can effectively utilize physical resources, thereby improving overall network transmission efficiency.

[0053] In the NR CSI feedback mechanism, the terminal device mainly measures the reference signal based on the CSI configuration and reports the measurement results. The reference signal includes CSI-RS and SSB. The NR CSI configuration is mainly divided into two parts. One is that the network device configures the reference signal resources for CSI measurement for the terminal device (CSI-RS resource configuration), and the other is how the network device configures the terminal device to report (CSI reporting configuration). The principles of these two configurations are relatively simple, but the specific details in the protocol are relatively complex. Only the details related to this application are introduced here.

[0054] The CSI-RS resource setting can be used for interference measurement and CSI channel measurement. Each resource setting contains S resource sets. Each resource set contains Ks CSI-RS resources. Aperiodic resource settings can contain one or more resource sets. Periodic and semi-persistent resource settings can contain only one resource set when used for CSI acquisition.

[0055] In addition, regarding the value of Ks, when used for CSI channel measurement, if the codebook type in the reporting setting is 'Type I' (specifically, it may include CodebookType = 'TypeISinglePanle' or 'TypeIMultiPanle'), Ks ≤ 32. When used for CSI channel measurement, if the codebook type in the reporting setting is 'Type II' (specifically, it may include CodebookType = 'typeII', 'typeII-PortSelection', 'typeII-r16', 'typeII-PortSelection-r16', 'typeII-PortSelection-r17'), Ks = 1. This is mainly because the computational complexity of Type II is relatively large, which poses a greater computational challenge to the terminal device. Therefore, the NR system reduces the computational complexity of the terminal device by limiting the value of Ks.

[0056] A CSI report consists of two parts: Part 1 and Part 2. Part 1 (CSI Part 1) has a fixed payload size and indicates the number of information bits in Part 2 (CSI Part 2). In a CSI report, if the current CSI measurement is for CSI channel measurement, the reporting content is specified as follows based on the codebook type:

[0057] Type I CSI: Part 1 includes RI (Rank Indicator) / CRI (CSI-RS Resource Indicator) and the CQI (Channel Quality Indicator) of the first CW (codeword); Part 2 includes LI (Layer Indicator) and PMI (Precoding Matrix Indicator), and also includes the CQI of the second CW when the rank is greater than 4.

[0058] Type II CSI: Part 1 includes RI, CQI, and the number of non-zero wideband amplitude coefficients per layer; Part 2 includes LI and PMI.

[0059] In NR systems, CSI-RS resources used for channel measurement only support a maximum of 32 ports. This can be configured using the nofports field in the nzp-CSI-Resource field of RRC (Radio Resource Control) signaling. In Release 19, due to the significant impact of standardization, new pattern design and per-resource port expansion for ports greater than 32 are not considered.

[0060] The following describes various implementations of the present application in conjunction with the accompanying drawings. In the following description, "when," "if," and "under the circumstances" are interchangeable. Furthermore, the content in parentheses is used to explain or exemplify the content preceding the parentheses and is not intended to limit this application.

[0061] Embodiments of the first aspect

[0062] The present invention provides a method for reporting channel state information, which is described from the perspective of a terminal device. FIG1 is a schematic diagram of the method for reporting channel state information according to an embodiment of the present invention. As shown in FIG1 , the method includes:

[0063] 110: The terminal device receives CSI-RS resource configuration (resource setting) and / or CSI report configuration (report config);

[0064] The CSI-RS resource configuration includes at least one CSI-RS resource set, each of the CSI-RS resource sets including at least X CSI-RS resources and / or CSI-RS resource groups;

[0065] The CSI reporting setting is related to the CSI-RS resource configuration;

[0066] The X is a positive integer greater than or equal to 1.

[0067] It is worth noting that FIG1 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG1 above.

[0068] In the above embodiment, the CSI-RS resource group may also be referred to as a CSI-RS resource subset. The two terms are interchangeable. For ease of explanation, the “CSI-RS resource group” is used as an example in the following description.

[0069] In the above embodiments, the CSI-RS resource configuration and / or CSI reporting setting may be sent via RRC signaling, and this application does not impose any limitation on the specific implementation manner.

[0070] According to the above embodiment, when the network device adjusts the antenna configuration, the CSI-RS resource configuration and / or CSI reporting setting is enhanced, so that the terminal device can perform CSI measurement efficiently and accurately.

[0071] In some embodiments, the CSI reporting configuration includes parameters N1 and N2, where N1 represents the number of antenna ports in a first dimension (e.g., horizontal dimension) per unit polarization direction, and N2 represents the number of antenna ports in a second dimension (e.g., vertical dimension) per unit polarization direction. In the following description, identical letters have identical meanings unless otherwise specified.

[0072] In some embodiments, the CSI-RS resource set includes X CSI-RS resources, where X is a positive integer greater than or equal to 1. For example, X is less than or equal to 8, or X is less than or equal to 4, depending on the number of antenna ports corresponding to each CSI-RS resource.

[0073] FIG2 is a schematic diagram of an example of the above embodiment. As shown in FIG2 , in this example, a CSI-RS resource set (abbreviated as CSI-RS set) includes four CSI-RS resources, i.e., X=4, and each CSI-RS resource corresponds to 32 antenna ports. Thus, the CSI-RS resource set can support CSI measurement and reporting for 128 ports.

[0074] In the above embodiment, the codebook type in the CSI reporting setting can be at least one of the following: TypeIsinglepanel, TypeImultipanel, TypeII, eTypeII, and feTypeII. For the definitions of these codebook types, reference can be made to related technologies and will not be repeated here.

[0075] In the above embodiment, optionally, if the reporting amount in the CSI reporting setting includes CRI (CSI-RS resource indication), but all resources in the CSI-RS resource set correspond to one PMI and CQI calculation hypothesis, the terminal does not need to select a PMI / CQI hypothesis in the measurement calculation, so the terminal device does not report CRI information.

[0076] In some possible implementations, the number of ports of each CSI-RS resource is equal.

[0077] For example, the above CSI-RS resource configuration includes a parameter "nofports" for indicating the number of ports of each CSI-RS resource. The parameter has a value of Z, indicating that the number of ports of each CSI-RS resource is Z, where Z is a positive integer greater than 1 and less than or equal to 32. Still taking FIG. 2 as an example, the number of ports corresponding to each CSI-RS resource is 32, i.e., Z=32.

[0078] In the above example, the number of ports corresponding to the CSI reporting setting is 2*N1*N2=Z*X, where N1, N2, and Z have the same meanings as described above. In the example of Figure 2, the CSI-RS resource set includes 4 CSI-RS resources, that is, X=4, and the number of ports for each CSI-RS resource is 32, that is, Z=32. Therefore, the number of ports corresponding to the CSI reporting setting is 128, realizing 128-port CSI measurement reporting.

[0079] In some other possible implementations, the number of ports of each CSI-RS resource is different.

[0080] For example, the above CSI-RS resource configuration includes a parameter "nofports" for indicating the number of ports of each CSI-RS resource, whose value is Zi, where i is the i-th CSI-RS resource in the CSI-RS resource set. Where i is a positive integer greater than 1 and less than or equal to X.

[0081] In the above example, the port number corresponding to the CSI reporting setting is That is, the sum of the number of ports corresponding to all CSI-RS resources, where the meanings of N1, N2 and Zi are as described above.

[0082] In other embodiments, the CSI-RS resource set includes N CSI-RS resource groups (CSI-RS resource subsets), where N is a positive integer greater than or equal to 1. For example, 1≤N≤8, or 1≤N≤4.

[0083] In the above embodiment, the codebook type in the CSI reporting setting can be at least one of the following: TypeIsinglepanel, TypeImultipanel. For the definitions of these codebook types, reference can be made to related technologies and will not be repeated here.

[0084] In some possible implementations, each CSI-RS resource group / subset includes an equal number of CSI-RS resources, and each CSI-RS resource group / subset includes Y CSI-RS resources, that is, the CSI-RS resource set includes X=N*Y CSI-RS resources. Where Y is a positive integer greater than or equal to 1, for example, Y is less than or equal to 8, or Y is less than or equal to 4.

[0085] Figure 3 is a schematic diagram of an example of the above embodiment. As shown in Figure 3, in this example, the CSI-RS resource set (referred to as CSI-RS set for short) includes 2 CSI-RS resource groups / subsets (referred to as subsets / groups for short), that is, N=2, each CSI-RS resource group / subset includes four CSI-RS resources, that is, Y=4, that is, the CSI-RS resource set includes 8 CSI-RS resources, and each CSI-RS resource group / subset can support 128-port CSI measurement reporting.

[0086] In the above implementation, the number of ports Z corresponding to each CSI-RS resource may be equal.

[0087] For example, the above CSI-RS resource configuration includes a parameter "nofports" for indicating the number of ports of each CSI-RS resource. The parameter "nofports" has a value of Z, indicating that the number of ports of each CSI-RS resource is Z, where Z is a positive integer greater than 1 and less than or equal to 32. Still taking FIG. 3 as an example, each CSI-RS resource corresponds to 32 antenna ports, i.e., Z = 32.

[0088] In some examples, the terminal device can select a CSI-RS resource group / subset from the above CSI-RS resource groups / subsets, for example, a CSI-RS resource group / subset with the best RSRP (Reference Signal Received Power). The CSI-RS resources in the selected CSI-RS resource group / subset constitute 128 ports.

[0089] For example, within each CSI-RS resource group / subset, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*Y. Still using Figure 3 as an example, with Z=32 and Y=4, the number of ports corresponding to each CSI reporting setting is 128, thus achieving 128-port CSI measurement reporting.

[0090] In the above example, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. The relevant content of CSI part 1 has been introduced above and will not be repeated here.

[0091] In the above example, the terminal device can use N bits or bits to report CRI information. That is, the terminal device can select an optimal CSI-RS resource group / subset to constitute the above 128 ports.

[0092] In the above example, when there are multiple panels, that is, when P in the codebook parameter in the CSI reporting setting is greater than 1, the number of panels P can be the same as the number Y of CSI-RS resources included in each CSI-RS resource group, that is, P=Y.

[0093] FIG3 a is a schematic diagram of an example of the above embodiment. As shown in FIG3 a , each CSI-RS resource group / subset includes 4 CSI-RS resources, and the number of panels is also 4, corresponding to each CSI-RS resource.

[0094] In other examples, the terminal device may also select a CSI-RS resource in each CSI-RS resource group / subset, for example, a CSI-RS resource with the best RSRP, and the selected CSI-RS resources constitute 128 ports.

[0095] For example, in each CSI-RS resource group / subset, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*N.

[0096] Figure 4 is a schematic diagram of the above example. As shown in Figure 4, in this example, the CSI-RS resource set (abbreviated as CSI-RS set) includes four CSI-RS resource groups / subsets (abbreviated as subsets / groups), i.e., N = 4. Each CSI-RS resource group / subset includes two CSI-RS resources, and each CSI-RS resource corresponds to 32 antenna ports. In other words, Z = 32, N = 4, and the number of ports corresponding to each CSI reporting setting is 128, thereby implementing 128-port CSI measurement reporting.

[0097] In the above example, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. The relevant content of CSI part 1 has been introduced above and will not be repeated here.

[0098] In the above example, the terminal device can use bits or bits are used to report CRI information. That is, the terminal device selects an optimal CSI-RS resource in each CSI-RS resource group / subset to form the above 128 ports.

[0099] In the above example, when there are multiple panels, that is, when P in the codebook parameter in the CSI reporting setting is greater than 1, the number of panels P can be the same as the number N of CSI-RS resource groups / subsets included in the CSI-RS resource set, that is, P=N.

[0100] FIG4 a is a schematic diagram of an example of the above embodiment. As shown in FIG4 a , each CSI-RS resource set includes four CSI-RS resource groups / subsets, and the number of panels is also four, corresponding to each CSI-RS resource group / subset.

[0101] In the above example, the network side may optionally further configure Q pieces of pairing information to indicate paired CSI-RS resource combinations of different CSI-RS resource groups / subsets, where Q is a positive integer greater than or equal to 1. For example, the Q pieces of pairing information are included in the above CSI-RS resource configuration.

[0102] Figure 5 is a schematic diagram of the above example. As shown in Figure 5, unlike the example in Figure 4, in this example, the network device also configures Q pairing information through the above CSI-RS resource configuration. For example, pair 0 {CSI-RS #0, 2, 4, 6} corresponds to 4 pairing information, Q = 4, and the paired CSI-RS resource combination is the first CSI-RS resource in each CSI-RS resource group / subset. For another example, pair 1 {CSI-RS #1, 2, 3, 7} corresponds to 4 pairing information, Q = 4, and the paired CSI-RS resource combination is the second CSI-RS resource in each CSI-RS resource group / subset. Both pair 0 {CSI-RS #0, 2, 4, 6} and pair 1 {CSI-RS #1, 2, 3, 7} constitute 128 ports.

[0103] In the above example, the terminal device can use bits are used to report CRI information, that is, pairing information selection status, that is, the terminal device can select an optimal pairing combination from the pairing combinations of CSI-RS resources to form the above 128 ports.

[0104] In some other possible implementations, the number of CSI-RS resources included in each CSI-RS resource group / subset is different. Each CSI-RS resource group / subset includes Yi CSI-RS resource, that is, the CSI-RS resource set includes resources, Yi is a positive integer greater than or equal to 1, for example, Yi is less than or equal to 8, or Yi is less than or equal to 4.

[0105] In the above implementation, the number of ports Z corresponding to each CSI-RS resource may be equal. The indication method, configuration method, and value of Z have been explained above and will not be repeated here.

[0106] In some examples, the terminal device can select a CSI-RS resource group / subset from the above-mentioned CSI-RS resource groups / subsets, for example, select a CSI-RS resource group / subset with the best RSRP, and the CSI-RS resources in the selected CSI-RS resource group / subset constitute 128 ports.

[0107] For example, if within N CSI-RS resource groups / subsets, there are N'<N CSI-RS resource groups / subsets, and the sum of the number of ports is equal to 2*N1*N2, then N' bits or bits are used to report CRI information. That is, the terminal device selects an optimal CSI-RS resource group / subset from the CSI-RS resource groups / subsets that meet the above conditions to form the above 128 ports.

[0108] In other examples, the terminal device may select a CSI-RS resource in each CSI-RS resource group / subset, for example, a CSI-RS resource with the best RSRP, and the selected CSI-RS resources constitute the above-mentioned 128 ports.

[0109] For example, in each CSI-RS resource group / subset, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*N.

[0110] In the above example, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. The relevant content of CSI part 1 has been introduced above and will not be repeated here.

[0111] In the above example, the terminal device can use bits or bits are used to report CRI information. That is, the terminal device selects an optimal CSI-RS resource group / subset in each CSI-RS resource group / subset to form the above 128 ports.

[0112] In the above example, the network side may optionally further configure Q pieces of pairing information to indicate paired CSI-RS resource combinations of different CSI-RS resource groups / subsets, where Q is a positive integer greater than or equal to 1. For example, the Q pieces of pairing information are included in the above CSI-RS resource configuration.

[0113] In the above example, the terminal device can use bits are used to report CRI information, that is, pairing information selection status, that is, the terminal device can select an optimal pairing combination from the pairing combinations of CSI-RS resources to form the above 128 ports.

[0114] In the above implementation, when there are multiple panels, the number P of panels is equal to the number N' of CSI-RS resource groups / subsets, that is, P = N'; or, the number P of panels is equal to the number Yi of CSI-RS resources included in each CSI-RS resource group / subset, that is, P = Yi.

[0115] In some further embodiments, the CSI-RS resource configuration includes N CSI-RS resource sets, where N is a positive integer greater than or equal to 1. For example, N is less than or equal to 4, or N is less than or equal to 8.

[0116] In the above embodiment, the codebook type in the CSI reporting setting can be at least one of the following: TypeIsinglepanel, TypeImultipanel, TypeII, eTypeII, and feTypeII. For the definitions of these codebook types, reference can be made to related technologies and will not be repeated here.

[0117] In some possible implementations, each CSI-RS resource set includes an equal number of CSI-RS resources, and each CSI-RS resource set includes Y CSI-RS resources, that is, the CSI-RS resource set includes X=N*Y CSI-RS resources. Where Y is a positive integer greater than or equal to 1, for example, Y is less than or equal to 8, or Y is less than or equal to 4.

[0118] Figure 6 is a schematic diagram of an example of the above embodiment. As shown in Figure 6, in this example, the CSI-RS resource configuration (referred to as CSI-RS configuration for short) includes 2 CSI-RS resource sets (referred to as CSI-RS sets for short), that is, N=2, and each CSI-RS resource set includes four CSI-RS resources, that is, Y=4, that is, the CSI-RS resource configuration includes 8 CSI-RS resources, and each CSI-RS resource set can support 128-port CSI measurement reporting.

[0119] In the above implementation, the number of ports Z corresponding to each CSI-RS resource may be equal.

[0120] For example, the above CSI-RS resource configuration includes a parameter "nofports" for indicating the number of ports of each CSI-RS resource. The parameter "nofports" has a value of Z, indicating that the number of ports of each CSI-RS resource is Z, where Z is a positive integer greater than 1 and less than or equal to 32. Still taking FIG. 3 as an example, each CSI-RS resource corresponds to 32 antenna ports, i.e., Z = 32.

[0121] In some examples, the terminal device may select a CSI-RS resource set from the above CSI-RS resource sets, for example, a CSI-RS resource set with the best RSRP. The CSI-RS resources in the selected CSI-RS resource set constitute 128 ports.

[0122] For example, within each CSI-RS resource set, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*Y. Still taking Figure 6 as an example, Z=32, Y=4, then the number of ports corresponding to each CSI reporting setting is 128, thereby achieving 128-port CSI measurement reporting.

[0123] In the above example, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. The relevant content of CSI part 1 has been introduced above and will not be repeated here.

[0124] In the above example, the terminal device can use N bits or bits to report CRI information. That is, the terminal device can select an optimal CSI-RS resource set to form the above 128 ports.

[0125] In the above example, when there are multiple panels, that is, when P in the codebook parameter in the CSI reporting setting is greater than 1, the number of panels P can be equal to the number Y of CSI-RS resources included in each CSI-RS resource set, that is, P=Y.

[0126] FIG6 a is a schematic diagram of an example of the above embodiment. As shown in FIG6 a , each CSI-RS resource set includes 4 CSI-RS resources, and the number of panels is also 4, corresponding to each CSI-RS resource.

[0127] In other examples, the terminal device may also select a CSI-RS resource in each CSI-RS resource set, for example, select a CSI-RS resource with the best RSRP, and the selected CSI-RS resources constitute 128 ports.

[0128] For example, in each CSI-RS resource set, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*N.

[0129] Figure 7 is a schematic diagram of the above example. As shown in Figure 7, in this example, the CSI-RS resource configuration (referred to as CSI-RS configuration) includes four CSI-RS resource sets (referred to as sets), i.e., N = 4. Each CSI-RS resource set includes two CSI-RS resources, and each CSI-RS resource corresponds to 32 antenna ports. In other words, Z = 32, N = 4, and the number of ports corresponding to each CSI reporting setting is 128, thereby implementing 128-port CSI measurement reporting.

[0130] In the above example, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. The relevant content of CSI part 1 has been introduced above and will not be repeated here.

[0131] In the above example, the terminal device can use bits or bits are used to report CRI information. That is, the terminal device selects an optimal CSI-RS resource in each CSI-RS resource set to form the above 128 ports.

[0132] In the above example, when there are multiple panels, that is, when P in the codebook parameter in the CSI reporting setting is greater than 1, the number of panels P can be equal to the number N of CSI-RS resource sets included in the CSI-RS resource configuration, that is, P=N.

[0133] FIG7 a is a schematic diagram of an example of the above embodiment. As shown in FIG7 a , each CSI-RS resource configuration includes four CSI-RS resource sets, and the number of panels is also four, corresponding to each CSI-RS resource set.

[0134] In the above example, the network side may optionally further configure Q pieces of pairing information to indicate paired CSI-RS resource combinations of different CSI-RS resource sets, where Q is a positive integer greater than or equal to 1. For example, the Q pieces of pairing information are included in the above CSI-RS resource configuration.

[0135] Figure 8 is a schematic diagram of the above example. As shown in Figure 8, unlike the example in Figure 7, in this example, the network device also configures Q pairing information through the above CSI-RS resource configuration. For example, pair 0 {CSI-RS #0, 2, 4, 6} corresponds to 4 pairing information, Q = 4, and the paired CSI-RS resource combination is the first CSI-RS resource in each CSI-RS resource set. For another example, pair 1 {CSI-RS #1, 2, 3, 7} corresponds to 4 pairing information, Q = 4, and the paired CSI-RS resource combination is the second CSI-RS resource in each CSI-RS resource set. Both pair 0 {CSI-RS #0, 2, 4, 6} and pair 1 {CSI-RS #1, 2, 3, 7} constitute 128 ports.

[0136] In the above example, the terminal device can use bits are used to report CRI information, that is, pairing information selection status, that is, the terminal device can select an optimal pairing combination from the pairing combinations of CSI-RS resources to form the above 128 ports.

[0137] In some other possible implementations, the number of CSI-RS resources included in each CSI-RS resource set is different. Each CSI-RS resource set includes Yi CSI-RS resource, that is, the CSI-RS resource configuration includes resources, Yi is a positive integer greater than or equal to 1, for example, Yi is less than or equal to 8, or Yi is less than or equal to 4.

[0138] In the above implementation, the number of ports corresponding to each CSI-RS resource may be equal, Z. The indication method, configuration method, and value of Z have been described above and will not be repeated here.

[0139] In some examples, the terminal device can select a CSI-RS resource set from the above CSI-RS resource sets, for example, select a CSI-RS resource set with the best RSRP, and the CSI-RS resources in the selected CSI-RS resource set constitute 128 ports.

[0140] For example, if within N CSI-RS resource sets, there are N'<N CSI-RS resource sets, and the sum of the number of ports is equal to 2*N1*N2, then N' bits or bits are used to report CRI information. That is, the terminal device selects an optimal CSI-RS resource set from the CSI-RS resource sets that meet the above conditions to form the above 128 ports.

[0141] In other examples, the terminal device may select a CSI-RS resource in each CSI-RS resource set, for example, a CSI-RS resource with the best RSRP, and the selected CSI-RS resources constitute the above-mentioned 128 ports.

[0142] For example, in each CSI-RS resource set, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*N.

[0143] In the above example, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. The relevant content of CSI part 1 has been introduced above and will not be repeated here.

[0144] In the above example, the terminal device can use bits or bits are used to report CRI information. That is, the terminal device selects an optimal CSI-RS resource set in each CSI-RS resource set to form the above 128 ports.

[0145] In the above example, the network side may optionally further configure Q pieces of pairing information to indicate paired CSI-RS resource combinations of different CSI-RS resource sets, where Q is a positive integer greater than or equal to 1. For example, the Q pieces of pairing information are included in the above CSI-RS resource configuration.

[0146] In the above example, the terminal device can use bits are used to report CRI information, that is, pairing information selection status, that is, the terminal device can select an optimal pairing combination from the pairing combinations of CSI-RS resources to form the above 128 ports.

[0147] In the above implementation, when there are multiple panels, the number of panels P is equal to the number of CSI-RS resource sets N', that is, P = N'; or, the number of panels P is equal to the number of CSI-RS resources Yi included in each CSI-RS resource set, that is, P = Yi.

[0148] In some embodiments, when there are multiple panels, the CSI reporting setting may further include a parameter P, which is the number of panels.

[0149] In the above embodiment, the parameter P can be configured together with the aforementioned parameters N1 and N2, or separately. This application does not limit the specific configuration method.

[0150] In some possible implementations, the terminal device may determine the correspondence between the CSI-RS resource and the parameter P according to at least one of the following methods:

[0151] K CSI-RS resources correspond to one panel, where K is a positive integer greater than or equal to 1;

[0152] One CSI-RS resource corresponds to one panel.

[0153] For example, when K CSI-RS resources correspond to one panel, the number of CSI-RS resources corresponding to each panel is equal. That is, in the CSI-RS resource configuration, 'nofports' is the number of ports Z for each resource.

[0154] In the above example, the port information of each panel can be 2*N1*N2=K*Z, where the meanings of N1, N2, and Z are the same as those described above and are not repeated here.

[0155] For another example, when one CSI-RS resource corresponds to one panel, the number of CSI-RS resources corresponding to each panel is equal. That is, in the CSI-RS resource configuration, 'nofports' is the number of ports Z for each resource.

[0156] In the above example, the port information of each panel may be 2*N1*N2=Z, where N1, N2, and Z have the same meanings as described above and are not described again here.

[0157] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0158] According to the method of the embodiment of the present application, the terminal device can perform CSI measurement efficiently and accurately.

[0159] Embodiments of the second aspect

[0160] An embodiment of the present application provides a method for configuring channel state information, which is explained from the perspective of a network device, and the contents that are the same as those in the embodiment of the first aspect are not repeated here.

[0161] FIG9 is a schematic diagram of a method for configuring channel state information according to an embodiment of the present application. As shown in FIG9 , the method includes:

[0162] 910. The network device sends CSI-RS resource configuration and / or CSI reporting settings to the terminal device;

[0163] The CSI-RS resource configuration includes at least one CSI-RS resource set, each CSI-RS resource set including at least X CSI-RS resources and / or CSI-RS resource groups;

[0164] The above CSI reporting settings are related to the above CSI-RS resource configuration;

[0165] The above X is a positive integer greater than or equal to 1.

[0166] It is worth noting that FIG9 above is only a schematic illustration of the embodiment of the present application, and the present application is not limited thereto. For example, other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG9 above.

[0167] In the embodiment of the present application, the CSI reporting setting may include parameters N1 and N2, and optionally may also include parameter P. N1 represents the number of antenna ports in the first dimension per unit polarization direction, N2 represents the number of antenna ports in the second dimension per unit polarization direction, and P represents the number of panels.

[0168] In some embodiments, the CSI-RS resource set includes X CSI-RS resources, where X is a positive integer greater than or equal to 1. For details, refer to the embodiment of the first aspect and will not be repeated here.

[0169] In some other embodiments, the CSI-RS resource set includes N CSI-RS resource groups / subsets, where N is a positive integer greater than or equal to 1. For details, refer to the embodiment of the first aspect and will not be repeated here.

[0170] In some further embodiments, the CSI-RS resource configuration includes N CSI-RS resource sets, where N is a positive integer greater than or equal to 1. For details, refer to the embodiment of the first aspect and will not be repeated here.

[0171] In some further embodiments, when there are multiple panels, one panel information may correspond to K CSI-RS resources or may correspond to 1 CSI-RS resource. Detailed contents are referred to the embodiment of the first aspect and will not be repeated here.

[0172] In some embodiments, the network device may also receive a CSI report sent by the terminal device, where the CSI report includes the above-mentioned CRI information.

[0173] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used individually, or one or more of the above embodiments may be combined.

[0174] According to the method of the embodiment of the present application, the terminal device can perform CSI measurement efficiently and accurately.

[0175] Embodiments of the third aspect

[0176] The embodiment of the present application provides a channel state information reporting device, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the same contents as those in the embodiment of the first aspect will not be repeated.

[0177] FIG10 is a schematic diagram of a channel state information reporting device according to an embodiment of the present application. As shown in FIG10 , the channel state information reporting device 1000 according to the embodiment of the present application includes:

[0178] A receiving unit 1010 receives a CSI-RS resource configuration and / or a CSI reporting setting; the CSI-RS resource configuration includes at least one CSI-RS resource set, each CSI-RS resource set includes at least X CSI-RS resources and / or CSI-RS resource groups; the CSI reporting setting is related to the CSI-RS resource configuration; X is a positive integer greater than or equal to 1.

[0179] In some embodiments, the CSI reporting setting includes parameters N1 and N2, where N1 represents the number of antenna ports in a first dimension in a unit polarization direction, and N2 represents the number of antenna ports in a second dimension in a unit polarization direction.

[0180] In some embodiments, the CSI-RS resource set includes X CSI-RS resources, where X is less than or equal to 8, or X is less than or equal to 4.

[0181] In the above embodiment, the codebook type in the CSI reporting setting may be at least one of the following: TypeIsinglepanel, TypeImultipanel, TypeII, eTypeII, and feTypeII.

[0182] In the above embodiment, when the reporting amount in the CSI reporting setting includes CRI, the terminal device does not report CRI information.

[0183] In the above embodiment, optionally, the number of ports of each CSI-RS resource is equal.

[0184] For example, the number of ports corresponding to the CSI reporting setting is 2*N1*N2=Z*X, where N1 and N2 have the same meanings as described above, and Z is the number of ports for each CSI-RS resource, which is a positive integer greater than 1 and less than or equal to 32.

[0185] In the above embodiment, optionally, the number of ports of each CSI-RS resource is not equal.

[0186] For example, the port number corresponding to the CSI reporting setting is The meanings of N1 and N2 are as described above. Zi is the port number of the i-th CSI-RS resource in the CSI-RS resource set, and i is a positive integer greater than 1 and less than or equal to X.

[0187] In some other embodiments, the CSI-RS resource set includes N CSI-RS resource groups, where N is a positive integer greater than or equal to 1.

[0188] In the above embodiment, the codebook type in the CSI reporting setting may be at least one of the following: TypeIsinglepanel, TypeImultipanel.

[0189] In the above embodiment, optionally, each CSI-RS resource group includes an equal number of CSI-RS resources, each CSI-RS resource group includes Y CSI-RS resources, and the number of CSI-RS resources included in the CSI-RS resource configuration is X=N*Y, where Y is a positive integer greater than or equal to 1. For example, Y is less than or equal to 8, or Y is less than or equal to 4.

[0190] In the above embodiment, optionally, within each CSI-RS resource group, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*Y, where the meanings of N1, N2 and Z are as described above.

[0191] In the above embodiment, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. For example, as shown in FIG10 , the apparatus 1000 further includes a sending unit 1020 that reports CRI information in CSI part 1.

[0192] In the above embodiment, the sending unit 1020 may use N bits or bits to report the above CRI information.

[0193] In the above embodiment, when there are multiple panels, when P>1, the number P of panels may be the same as the number Y of CSI-RS resources included in each CSI-RS resource group, that is, P=Y.

[0194] In the above embodiment, optionally, within each CSI-RS resource group, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*N, where the meanings of N1, N2 and Z are as described above.

[0195] In the above embodiment, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. For example, as shown in FIG10 , the apparatus 1000 further includes a sending unit 1020 that reports CRI information in CSI part 1.

[0196] In the above embodiment, the sending unit 1020 can use bits or bits to report the above CRI information.

[0197] In the above embodiment, when there are multiple panels and P>1, the number P of panels may also be the same as the number N of CSI-RS resource groups included in the CSI-RS resource set, that is, P=N.

[0198] In the above embodiment, optionally, the CSI-RS resource configuration may further include Q pairing information, which is used to indicate paired CSI-RS resource combinations of different CSI-RS resource groups, where Q is a positive integer greater than or equal to 1.

[0199] In the above embodiment, the sending unit 1020 can use bits to report the above CRI information.

[0200] In the above embodiment, optionally, each CSI-RS resource group includes a different number of CSI-RS resources, and each CSI-RS resource group includes Yi CSI-RS resources, where Yi is a positive integer greater than or equal to 1. For example, Yi is less than or equal to 8, or Yi is less than or equal to 4.

[0201] In the above embodiment, if within N CSI-RS resource groups, there are N'<N CSI-RS resource groups and the sum of the number of ports is equal to 2*N1*N2, then the sending unit 1020 can use N' bits or bits can report CRI information, and the meanings of N1, N2 and Z are as described above.

[0202] In the above embodiment, in each CSI-RS resource group, the number of ports corresponding to each CSI reporting setting may be 2*N1*N2=Z*N, where the meanings of N1, N2 and Z are as described above.

[0203] In the above embodiment, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. For example, as shown in FIG10 , the apparatus 1000 further includes a sending unit 1020 that reports CRI information in CSI part 1.

[0204] In the above embodiment, the sending unit 1020 can use bits or bits to report the above CRI information.

[0205] In the above embodiment, optionally, the CSI-RS resource configuration may further include Q pairing information, which is used to indicate paired CSI-RS resource combinations of different CSI-RS resource groups, where Q is a positive integer greater than or equal to 1.

[0206] In the above embodiment, the sending unit 1020 can use bits to report the above CRI information.

[0207] In the above embodiment, when there are multiple panels, the number P of panels can be the same as the number N' of CSI-RS resource groups in which the sum of the number of ports is equal to 2*N1*N2, that is, P=N'; or the number P of panels can also be the same as the number Yi of CSI-RS resources included in each CSI-RS resource group, that is, P=Yi.

[0208] In some other embodiments, the CSI-RS resource configuration includes N CSI-RS resource sets, where N is a positive integer greater than or equal to 1. For example, N is less than or equal to 4, or N is less than or equal to 8.

[0209] In the above embodiment, the codebook type in the CSI reporting setting may be at least one of the following: TypeIsinglepanel, TypeImultipanel, TypeII, eTypeII, feTypeII.

[0210] In the above embodiment, optionally, each CSI-RS resource set includes an equal number of CSI-RS resources, each CSI-RS resource set includes Y CSI-RS resources, and the number of CSI-RS resources included in the CSI-RS resource configuration is X=N*Y, where Y is a positive integer greater than or equal to 1. For example, Y is less than or equal to 8, or Y is less than or equal to 4.

[0211] In the above embodiment, optionally, in each CSI-RS resource set, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*Y, where the meanings of N1, N2 and Z are as described above.

[0212] In the above embodiment, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. For example, as shown in FIG10 , the apparatus 1000 further includes a sending unit 1020 that reports CRI information in CSI part 1.

[0213] In the above embodiment, the sending unit 1020 may use N bits or bits to report the above CRI information.

[0214] In the above embodiment, when there are multiple panels, that is, P>1, the number of panels P may be the same as the number Y of CSI-RS resources included in each CSI-RS resource set, that is, P=Y.

[0215] In the above embodiment, optionally, in each CSI-RS resource set, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*N, where the meanings of N1, N2 and Z are as described above.

[0216] In the above embodiment, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. For example, as shown in FIG10 , the apparatus 1000 further includes a sending unit 1020 that reports CRI information in CSI part 1.

[0217] In the above embodiment, the sending unit 1020 can use bits or bits to report the above CRI information.

[0218] In the above embodiment, when there are multiple panels, ie, P>1, the number of panels P may also be the same as the number N of CSI-RS resource sets included in the CSI-RS resource configuration, ie, P=N.

[0219] In the above embodiment, optionally, the CSI-RS resource configuration may further include Q pairing information, which is used to indicate paired CSI-RS resource combinations of different CSI-RS resource sets, where Q is a positive integer greater than or equal to 1.

[0220] In the above embodiment, the sending unit 1020 can use bits to report the above CRI information.

[0221] In the above embodiment, optionally, each CSI-RS resource set includes a different number of CSI-RS resources, and each CSI-RS resource set includes Yi CSI-RS resources, where Yi is a positive integer greater than or equal to 1. For example, Yi is less than or equal to 8, or Yi is less than or equal to 4.

[0222] In the above embodiment, if within N CSI-RS resource sets, there are N'<N CSI-RS resource sets, and the sum of the number of ports is equal to 2N1*N2, then the sending unit 1020 can use N' bits or bits to report CRI information, and the meanings of N1, N2 and Z are as described above.

[0223] In the above embodiment, in each CSI-RS resource set, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*N, where the meanings of N1, N2 and Z are as described above.

[0224] In the above embodiment, when the reporting amount in the CSI reporting setting includes CRI, the terminal device can report CRI information in CSI part 1. For example, as shown in FIG10 , the apparatus 1000 further includes a sending unit 1020 that reports CRI information in CSI part 1.

[0225] In the above embodiment, the sending unit 1020 can use bits or bits to report the above CRI information.

[0226] In the above embodiment, optionally, the CSI-RS resource configuration may further include Q pairing information, which is used to indicate paired CSI-RS resource combinations of different CSI-RS resource sets, where Q is a positive integer greater than or equal to 1.

[0227] In the above embodiment, the sending unit 1020 can use bits to report the above CRI information.

[0228] In the above embodiment, when there are multiple panels, the number P of panels can be the same as the number N' of CSI-RS resource sets in which the sum of the number of ports is equal to 2*N1*N2, that is, P=N'; or, the number P of panels can also be the same as the number Yi of CSI-RS resources included in each CSI-RS resource set, that is, P=Yi.

[0229] In some embodiments, the CSI reporting configuration further includes a parameter P, where P is the number of panels.

[0230] In the above embodiment, as shown in FIG10 , the apparatus 1000 further includes:

[0231] The processing unit 1030 determines a correspondence between a CSI-RS resource and a parameter P in the CSI reporting configuration according to at least one of the following methods:

[0232] K CSI-RS resources correspond to one panel, where K is a positive integer greater than or equal to 1;

[0233] One CSI-RS resource corresponds to one panel.

[0234] In the above embodiment, when K CSI-RS resources correspond to one panel, the number of CSI-RS resources corresponding to each panel can be equal. For example, the port information of each panel is 2*N1*N2=K*Z, where the meanings of N1, N2, and Z are as described above.

[0235] In the above embodiment, when one CSI-RS resource corresponds to one panel, the number of CSI-RS resources corresponding to each panel may be equal. For example, the port information of each panel is 2*N1*N2=Z, where N1, N2, and Z have the same meanings as described above.

[0236] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0237] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The channel state information reporting device 1000 may also include other components or modules. For the specific contents of these components or modules, reference may be made to related technologies.

[0238] In addition, for the sake of simplicity, FIG10 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0239] Through the apparatus of the embodiment of the present application, the terminal device can perform CSI measurement efficiently and accurately.

[0240] Embodiments of the fourth aspect

[0241] The embodiment of the present application provides a device for configuring channel state information. The device may be, for example, a network device, or one or more components or assemblies configured on the network device. The contents that are the same as those in the first and second aspects of the embodiment are not repeated here.

[0242] FIG11 is a schematic diagram of a channel state information configuration apparatus according to an embodiment of the present application. As shown in FIG11 , the channel state information configuration apparatus 1100 according to an embodiment of the present application includes:

[0243] A sending unit 1110, which sends a CSI-RS resource configuration and / or a CSI reporting setting to a terminal device;

[0244] The CSI-RS resource configuration includes at least one CSI-RS resource set, each CSI-RS resource set including at least X CSI-RS resources and / or CSI-RS resource groups;

[0245] The above CSI reporting settings are related to the above CSI-RS resource configuration;

[0246] The above X is a positive integer greater than or equal to 1.

[0247] In the embodiment of the present application, the CSI reporting setting may include parameters N1 and N2, and optionally may also include parameter P. N1 represents the number of antenna ports in the first dimension per unit polarization direction, N2 represents the number of antenna ports in the second dimension per unit polarization direction, and P represents the number of panels.

[0248] In some embodiments, the CSI-RS resource set includes X CSI-RS resources, where X is a positive integer greater than or equal to 1. For details, refer to the embodiment of the first aspect and will not be repeated here.

[0249] In other embodiments, the CSI-RS resource set includes N CSI-RS resource groups / subsets, where N is a positive integer greater than or equal to 1. For details, refer to the embodiment of the first aspect and will not be repeated here.

[0250] In some further embodiments, the CSI-RS resource configuration includes N CSI-RS resource sets, where N is a positive integer greater than or equal to 1. For details, refer to the embodiment of the first aspect and will not be repeated here.

[0251] In some further embodiments, when there are multiple panels, one panel information may correspond to K CSI-RS resources or may correspond to 1 CSI-RS resource. Detailed contents are referred to the embodiment of the first aspect and will not be repeated here.

[0252] In some embodiments, as shown in FIG11 , the apparatus 1100 further includes:

[0253] The receiving unit 1120 receives a CSI report sent by a terminal device, where the CSI report includes CRI information.

[0254] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0255] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The channel state information configuration device 1100 may also include other components or modules. For the specific contents of these components or modules, reference may be made to related technologies.

[0256] In addition, for the sake of simplicity, FIG11 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0257] Through the embodiments of the present application, the terminal device can perform CSI measurements efficiently and accurately.

[0258] Embodiments of the fifth aspect

[0259] An embodiment of the present application also provides a communication system, which includes a network device and a terminal device.

[0260] FIG12 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation using a terminal device and a network device as an example. As shown in FIG12 , a communication system 1200 may include a network device 1201 and terminal devices 1202 and 1203. For simplicity, FIG12 illustrates only two terminal devices and one network device as an example, but the embodiments of the present application are not limited thereto.

[0261] In the embodiment of the present application, existing services or future services can be transmitted between the network device 1201 and the terminal devices 1202 and 1203. For example, these services may include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0262] It is worth noting that Figure 12 shows that both terminal devices 1202 and 1203 are within the coverage range of network device 1201, but the present application is not limited thereto. Both terminal devices 202 and 1203 may not be within the coverage range of network device 1201, or one terminal device 1202 may be within the coverage range of network device 1201 while the other terminal device 1203 is outside the coverage range of network device 1201.

[0263] In some embodiments, the terminal device includes the apparatus described in the embodiment of the third aspect, and is configured to perform the method described in the embodiment of the first aspect. Since the method has been described in detail in the embodiment of the first aspect, its content is incorporated herein and will not be repeated.

[0264] In some embodiments, the network device includes the apparatus described in the embodiment of the fourth aspect, and is configured to perform the method described in the embodiment of the second aspect. Since the method has been described in detail in the embodiment of the second aspect, its content is incorporated herein and will not be repeated.

[0265] An embodiment of the present application further provides a terminal device, which may be, for example, a UE, but the present application is not limited thereto and may also be other devices.

[0266] Figure 13 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 13 , terminal device 1300 may include a processor 1310 and a memory 1320. Memory 1320 stores data and programs and is coupled to processor 1310. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.

[0267] For example, the processor 1310 may be configured to execute a program to implement the method described in the embodiment of the first aspect.

[0268] As shown in Figure 13 , the terminal device 1300 may further include: a communication module 1330, an input unit 1340, a display 1350, and a power supply 1360. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 1300 does not necessarily include all of the components shown in Figure 13 , and these components are not essential. Furthermore, the terminal device 1300 may also include components not shown in Figure 13 , for which reference may be made to the prior art.

[0269] An embodiment of the present application further provides a network device, which may be a gNB, for example, but the present application is not limited thereto and may also be other network devices.

[0270] Figure 14 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application. As shown in Figure 14 , network device 1400 may include a processor 1410 (e.g., a central processing unit (CPU)) and a memory 1420 ; the memory 1420 is coupled to the processor 1410 . The memory 1420 may store various data and may also store an information processing program 1430 , which is executed under the control of the processor 1410 .

[0271] For example, the processor 1410 may be configured to execute a program to implement the method as described in the embodiment of the second aspect.

[0272] In addition, as shown in FIG14 , network device 1400 may further include: a transceiver 1440 and an antenna 1450, etc.; wherein, the functions of the above components are similar to those in the prior art and are not described in detail here. It is worth noting that network device 1400 does not necessarily include all the components shown in FIG14 ; in addition, network device 1400 may also include components not shown in FIG14 , and reference may be made to the prior art for details.

[0273] An embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method described in the embodiment of the first aspect.

[0274] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the method described in the embodiment of the first aspect.

[0275] An embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the method described in the embodiment of the second aspect.

[0276] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the method described in the embodiment of the second aspect.

[0277] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0278] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0279] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0280] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0281] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

[0282] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:

[0283] 1. A method for configuring channel state information, wherein the method comprises:

[0284] The network device sends CSI-RS resource configuration and / or CSI reporting settings to the terminal device;

[0285] The CSI-RS resource configuration includes at least one CSI-RS resource set, each of the CSI-RS resource sets including at least X CSI-RS resources and / or CSI-RS resource groups;

[0286] The CSI reporting setting is related to the CSI-RS resource configuration;

[0287] The X is a positive integer greater than or equal to 1.

[0288] 2. The method according to Supplement 1, wherein:

[0289] The CSI-RS resource set includes X CSI-RS resources.

[0290] 3. The method according to Supplementary Note 2, wherein:

[0291] The number of ports of each of the CSI-RS resources is equal;

[0292] The number of ports corresponding to the CSI reporting setting is 2*N1*N2=Z*X, where N1 represents the number of antenna ports in the first dimension of the unit polarization direction, N2 represents the number of antenna ports in the second dimension of the unit polarization direction, and Z is the number of ports of each CSI-RS resource. Z is a positive integer greater than 1 and less than or equal to 32.

[0293] 4. The method according to Supplementary Note 2, wherein:

[0294] The number of ports of each of the CSI-RS resources is not equal;

[0295] The port number corresponding to the CSI reporting setting is Wherein, N1 represents the number of antenna ports in the first dimension of the unit polarization direction, N2 represents the number of antenna ports in the second dimension of the unit polarization direction, Zi is the port number of the i-th CSI-RS resource in the CSI-RS resource set, and i is a positive integer greater than 1 and less than or equal to X.

[0296] 5. The method according to Supplement 1, wherein:

[0297] The CSI-RS resource configuration includes N CSI-RS resource sets, where N is a positive integer greater than or equal to 1;

[0298] The N is less than or equal to 4, or the N is less than or equal to 8.

[0299] 6. The method according to Supplementary Note 5, wherein:

[0300] The number of CSI-RS resources included in each CSI-RS resource set is equal, and each CSI-RS resource set includes Y CSI-RS resources, where X=N*Y, and Y is a positive integer greater than or equal to 1;

[0301] The Y is less than or equal to 8, or the Y is less than or equal to 4.

[0302] 7. The method according to Supplementary Note 6, wherein:

[0303] In each CSI-RS resource set, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*Y; or, in each CSI-RS resource set, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*N;

[0304] Wherein, N1 represents the number of antenna ports in the first dimension of the unit polarization direction, N2 represents the number of antenna ports in the second dimension of the unit polarization direction, Z represents the number of ports of each CSI-RS resource, and Z is a positive integer greater than or equal to 1.

[0305] 8. The method according to Supplementary Note 5, wherein:

[0306] The number of CSI-RS resources included in each CSI-RS resource set is different, and each CSI-RS resource set includes Yi CSI-RS resource, where Yi is a positive integer greater than or equal to 1;

[0307] The Yi is less than or equal to 8, or the Yi is less than or equal to 4.

[0308] 9. The method according to Supplementary Note 8, wherein:

[0309] In N CSI-RS resource sets, there are N'<N CSI-RS resource sets, and the sum of the number of ports is equal to 2N1*N2. The terminal device uses N' bits or bits to report CRI information; or, in each CSI-RS resource set, the number of ports corresponding to each of the CSI reporting settings is 2*N1*N2=Z*N, and the terminal device uses bits or bits to report the CRI information;

[0310] Wherein, N1 represents the number of antenna ports in the first dimension of the unit polarization direction, N2 represents the number of antenna ports in the second dimension of the unit polarization direction, Z represents the number of ports of each CSI-RS resource, and Z is a positive integer greater than or equal to 1.

[0311] 10. A network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method as described in any one of Notes 1 to 9.

Claims

1. A channel state information reporting device, configured in a terminal device, wherein: The device comprises: a receiving unit configured to receive a channel state information reference signal (CSI-RS) resource configuration and / or a channel state information (CSI) reporting configuration; The CSI-RS resource configuration includes at least one CSI-RS resource set, each of the CSI-RS resource sets including at least X CSI-RS resources and / or CSI-RS resource groups; The CSI reporting setting is related to the CSI-RS resource configuration; The X is a positive integer greater than or equal to 1.

2. The device according to claim 1, wherein The CSI reporting setting includes parameters N1 and N2, wherein N1 represents the number of antenna ports in a first dimension in a unit polarization direction, and N2 represents the number of antenna ports in a second dimension in a unit polarization direction.

3. The device according to claim 1, wherein The CSI-RS resource set includes N CSI-RS resource groups, where N is a positive integer greater than or equal to 1.

4. The device according to claim 3, wherein The number of CSI-RS resources included in each CSI-RS resource group is equal, and each CSI-RS resource group includes Y CSI-RS resources, where X=N*Y, and Y is a positive integer greater than or equal to 1.

5. The device according to claim 4, wherein In each CSI-RS resource group, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*Y, where N1 represents the number of antenna ports in the first dimension of the unit polarization direction, N2 represents the number of antenna ports in the second dimension of the unit polarization direction, and Z represents the number of ports of each CSI-RS resource, which is a positive integer greater than or equal to 1.

6. The device according to claim 5, wherein The device further comprises: The sending unit reports CSI-RS resource indication (CRI) information in CSI part 1 when the reporting amount in the CSI reporting setting includes CSI-RS resource indication (CRI).

7. The device according to claim 6, wherein The sending unit uses N bits or bits to report the CRI information.

8. The device according to claim 4, wherein In each CSI-RS resource group, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*N, where N1 represents the number of antenna ports in the first dimension of the unit polarization direction, and N2 represents the number of antenna ports in the second dimension of the unit polarization direction. dimensional, Z is the number of antenna ports of each CSI-RS resource, and Z is a positive integer greater than or equal to 1.

9. The device according to claim 8, wherein The device further comprises: The sending unit reports CRI information in CSI part 1 when the reporting amount in the CSI reporting setting includes CRI.

10. The device according to claim 9, wherein The sending unit uses bits or bits to report the CRI information.

11. The device according to claim 9, wherein The CSI-RS resource configuration further includes Q pairing information for indicating paired CSI-RS resource combinations of different CSI-RS resource groups, where Q is a positive integer greater than or equal to 1.

12. The device according to claim 11, wherein The sending unit uses bits to report the CRI information.

13. The device according to claim 3, wherein The number of CSI-RS resources included in each of the CSI-RS resource groups is different. Each of the CSI-RS resource groups includes Yi CSI-RS resources, where Yi is a positive integer greater than or equal to 1.

14. The device according to claim 13, wherein Within N CSI-RS resource groups, there are N'<N CSI-RS resource groups, and the sum of the number of ports is equal to 2*N1*N2, where N1 is the number of antenna ports in the first dimension of the unit polarization direction, N2 is the number of antenna ports in the second dimension of the unit polarization direction, and Z is the number of ports of each CSI-RS resource, and Z is a positive integer greater than or equal to 1.

15. The device according to claim 14, wherein The device further comprises: The sending unit reports CRI information in CSI part 1 when the reporting amount in the CSI reporting setting includes CRI.

16. The device according to claim 15, wherein The sending unit uses N' bits or bits to report CRI information.

17. The device according to claim 13, wherein In each CSI-RS resource group, the number of ports corresponding to each CSI reporting setting is 2*N1*N2=Z*N, where N1 represents the number of antenna ports in the first dimension of the unit polarization direction, N2 represents the number of antenna ports in the second dimension of the unit polarization direction, and Z represents the number of ports of each CSI-RS resource, and Z is a positive integer greater than or equal to 1.

18. The device according to claim 17, wherein The device further comprises: The sending unit reports CRI information in CSI part 1 when the reporting amount in the CSI reporting setting includes CRI.

19. The device according to claim 18, wherein The sending unit uses bits or bits to report the CRI information.

20. The device according to claim 1, wherein The CSI reporting setting also includes a parameter P, where P is the number of panels.

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