Channel state information report generation method, receiving method and device

Abstract

The embodiment of the invention provides a channel state information report generation method, a receiving method and a device. The method comprises: receiving CSI-RS resource configuration information and CSI reporting configuration information, the CSI-RS resource configuration information being used for configuring at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set comprising Y CSI-RS resources; the CSI reporting configuration information comprises M sub-configuration information, and Y and M are integers greater than or equal to 1; and generating a CSI report based on the CSI-RS resource configuration information and the CSI reporting configuration information, the CSI report comprising N CRIs, and N being an integer greater than or equal to 1.

Description

Channel state information report generation method, receiving method and device Technical Field

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

[0002] As fifth-generation (5G) communication networks become more widespread across industries and are deployed in more geographic areas, they require very high data rates and denser networks to handle more advanced services. These networks utilize more antennas, greater bandwidth, and more frequency bands, resulting in increasing energy consumption for 5G devices. According to operator statistics, the average energy consumption of a 5G base station exceeds three times that of an LTE (Long Term Evolution) base station. Nearly 50% of the cost of deploying a 5G network for operators comes from electricity costs. Furthermore, 5G base stations consume significant energy even during periods of inactivity. Therefore, network energy conservation is crucial for improving environmental sustainability, reducing environmental impact (e.g., greenhouse gas emissions), and saving operating costs. Energy conservation in 5G networks is a pressing issue that needs to be addressed.

[0003] To achieve network energy conservation, Release 18 (Rel-18) launched a project to research various energy-saving technologies related to network energy conservation. During the discussion, network energy conservation technologies can be categorized into time, frequency, spatial, and energy domains. Examples of spatial energy conservation include dynamically adjusting the number of antennas, dynamically adjusting data transmission power, and introducing discontinuous transmission (DTX) / discontinuous reception (DRX) in cells.

[0004] Using various energy-saving technologies can save a lot of energy for network devices, but at the same time, it can also have a negative impact on other processes or technologies in the communication system and cause certain compatibility issues with the configuration methods in existing standards. For example, in NR (new radio) energy-saving scenarios, the terminal side can measure and report CSI information of one or more energy-saving sub-configurations based on existing or enhanced CSI resource configurations, providing sufficient channel state information reporting for base stations to transmit data for energy-saving purposes.

[0005] 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.

[0006] Summary of the Invention

[0007] The inventors discovered that the current CSI reporting mechanism cannot support reporting of multiple CSI information for one or more sub-configurations. Therefore, how a terminal device performs joint channel measurement and reporting for one or more sub-configurations has become an urgent problem to be solved in network energy-saving technology.

[0008] In response to at least one of the above problems or other similar problems, embodiments of the present application provide a channel state information report generating method, receiving method, and device.

[0009] According to one aspect of an embodiment of the present application, a channel state information report generation method is provided, which is applied to a terminal device, and the method includes:

[0010] Receive CSI-RS resource configuration information and CSI reporting configuration information,

[0011] The CSI-RS (Channel State Information Reference Signal) resource configuration information is used to configure at least one CSI-RS resource set, where one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0012] A CSI report is generated based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CRIs (CSI-RS resource indexes), where N is an integer greater than or equal to 1.

[0013] According to another aspect of an embodiment of the present application, a CSI report receiving method is provided, which is applied to a network device. The method includes:

[0014] Send CSI-RS resource configuration information and CSI reporting configuration information to the terminal device,

[0015] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0016] Receive a CSI report generated by the terminal device based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), where N is an integer greater than or equal to 1.

[0017] According to another aspect of an embodiment of the present application, a CSI report generating apparatus is provided, configured in a terminal device, wherein the apparatus includes:

[0018] A receiving unit, which receives CSI-RS resource configuration information and CSI reporting configuration information,

[0019] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0020] A generating unit is configured to generate a CSI report based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), where N is an integer greater than or equal to 1.

[0021] According to another aspect of an embodiment of the present application, a CSI report receiving apparatus is provided, configured in a network device, the apparatus comprising:

[0022] A sending unit, which sends CSI-RS resource configuration information and CSI reporting configuration information to the terminal device,

[0023] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0024] A receiving unit receives a CSI report generated by the terminal device based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), and N is an integer greater than or equal to 1.

[0025] According to another aspect of an embodiment of the present application, a communication system is provided, including: a terminal device, which receives CSI-RS resource configuration information and CSI reporting configuration information, wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, and Y and M are integers greater than or equal to 1; a CSI report is generated based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), and N is an integer greater than or equal to 1; a network device, which sends the CSI-RS resource configuration information and the CSI reporting configuration information, and receives the CSI report.

[0026] One of the beneficial effects of the embodiments of the present application is that: the terminal device receives CSI-RS resource configuration information and CSI reporting configuration information including at least one sub-configuration information, and generates a CSI report including at least one CSI-RS resource index based on the CSI-RS resource configuration information and the CSI reporting configuration information, so that the terminal device can perform joint channel measurement and reporting on one or more sub-configurations, which helps the terminal device to perform CSI measurement efficiently and accurately, ensure data transmission performance and achieve network energy saving.

[0027] 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.

[0028] 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.

[0029] 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

[0030] 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.

[0031] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0032] FIG2 is a schematic diagram of an energy-saving scenario according to an embodiment of the present application;

[0033] FIG3 is a schematic diagram of a method for generating a channel state information report according to an embodiment of the present application;

[0034] 3A and 3B are schematic diagrams of channel state information reference signal resources according to an embodiment of the present application;

[0035] FIG4 is a schematic diagram of a method for receiving a channel state information report according to an embodiment of the present application;

[0036] FIG5 is a schematic diagram of a channel state information report generating apparatus according to an embodiment of the present application;

[0037] FIG6 is a schematic diagram of a channel state information report receiving apparatus according to an embodiment of the present application;

[0038] FIG7 is a schematic diagram of a network device according to an embodiment of the present application;

[0039] FIG8 is a schematic diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] Among them, terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.

[0049] 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.

[0050] 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.

[0051] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0052] FIG1 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 FIG1 , a communication system 100 may include a network device 101 and terminal devices 102 and 103. For simplicity, FIG1 illustrates only two terminal devices and one network device as an example, but the embodiments of the present application are not limited thereto.

[0053] In the embodiment of the present application, existing services or future services can be transmitted between the network device 101 and the terminal devices 102 and 103. 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.

[0054] It is worth noting that FIG1 shows that both terminal devices 102 and 103 are within the coverage range of network device 101, but the present application is not limited thereto. Both terminal devices 102 and 103 may not be within the coverage range of network device 101, or one terminal device 102 may be within the coverage range of network device 101 while the other terminal device 103 is outside the coverage range of network device 101.

[0055] In the embodiments of the present application, the high-layer signaling may be, for example, radio resource control (RRC) signaling; for example, an RRC message, including, for example, an MIB, system information, or a dedicated RRC message; or an RRC information element (RRC IE). The high-layer signaling may also be, for example, MAC (Medium Access Control) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.

[0056] In an embodiment of the present application, in a mobile communication system, a terminal device typically measures channel state information (CSI) based on instructions and configurations from a network device, and reports the measured CSI to the network device. When scheduling the terminal device, the network device may refer to the CSI to schedule the terminal device for transmission using an appropriate transmission method on appropriate physical resources. Different terminal devices may experience different physical channel conditions, and the use of a CSI feedback mechanism can rationally and effectively utilize physical resources, thereby improving the efficiency of overall network transmission.

[0057] In the NR CSI feedback mechanism, the terminal device primarily measures and reports reference signals based on the CSI configuration. Reference signals include CSI-RS (Channel State Information-Reference Signal) and SSB (Synchronization Signal Block). NR CSI configuration consists of two main parts: the first part is the network equipment configuring the reference resources for CSI measurement for the terminal device (CSI-RS resource configuration); the second part is the network equipment configuring the terminal device how to report CSI (CSI reporting configuration).

[0058] For example, the CSI-RS resource configuration can be used for interference measurement and CSI channel measurement. Each CSI-RS resource configuration contains S resource sets. Each resource set contains Ks CSI-RS resources (i.e., Y CSI-RS resources described below). Aperiodic resource configurations can contain one or more resource sets. For periodic and semi-persistent resource configurations, only one resource set can be included when used for CSI acquisition.

[0059] Among them, the value of Ks is:

[0060] 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.

[0061] 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 and 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.

[0062] A CSI report consists of two parts: Part 1 and Part 2. Part 1 has a fixed payload size and indicates the number of information bits in Part 2. In CSI reporting, if the current CSI measurement is used for CSI channel measurement, the following reporting content is specified based on the codebook type:

[0063] Type I CSI: Part 1 includes RI (Rank Indicator) / CSI-RS Resource Index (CSI-RS Resource Index) and the CQI (Channel Quality Indicator) of the first CW (Code Word); 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;

[0064] 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.

[0065] In NR energy-saving scenarios, the enhanced CSI resource configuration is associated with one or more sub-configurations in the CSI reporting configuration. That is, the terminal side can measure and report CSI information of one or more energy-saving sub-configurations based on the enhanced CSI resource configuration. This provides sufficient channel state information reporting for data transmission for energy-saving purposes by the base station.

[0066] For a CSI resource enhancement method 1 for the purpose of energy saving, one or more CSI-RS resources in a CSI-RS resource set for channel measurement can be associated with the same sub-configuration provided in the CSI reporting configuration. That is, a sub-configuration in the CSI reporting configuration can be associated with one or more CSI-RS resources for channel measurement in a CSI-RS resource set; wherein the resources in the resource set for channel measurement have the same number of antenna ports.

[0067] For a CSI resource enhancement method 2 for the purpose of energy saving, one or more CSI-RS resources in a CSI-RS resource set for channel measurement can be associated with multiple sub-configurations provided in the CSI report configuration, each CSI-RS resource is associated with all sub-configurations, and the resources in the resource set for channel measurement have the same number of antenna ports.

[0068] In the prior art, CSI-RS resource configuration is a semi-static configuration by RRC, and the number of CSI-RS ports and time-frequency positions do not change over a long period of time.

[0069] However, the inventors found that in a network energy-saving scenario, in order to achieve the goal of network energy saving, a feasible solution is that the network equipment can adjust the antenna configuration used to serve the terminal equipment according to the real-time needs of the network, such as the number of antenna elements, antenna ports, etc.

[0070] Figure 2 is a schematic diagram of an energy-saving scenario in an embodiment of the present application. As shown in Figure 2, network energy-saving related spatial / energy domain element adjustment technologies can be divided into two types:

[0071] The left side of Figure 2 is called Type 1 adjustment. For example, corresponding to energy-saving scenario 1, all antennas (factors) associated with a logical antenna port (also known as a digital antenna port, antenna port, or port) are enabled or disabled. In this method, the network device can disable all antennas (factors) corresponding to one or more antenna ports. After disabling, the transmission power of each port remains unchanged, but the total number of antenna ports is reduced. Therefore, this adjustment directly affects the number of antenna ports, and thus the transmission power of the reference signal.

[0072] The right side of Figure 2 is called Type 2 adjustment. For example, corresponding to energy-saving scenario 2, some antenna factors associated with a logical antenna port are enabled or disabled. In this method, the network device can disable some antennas (factors) corresponding to all antenna ports. After disabling, the number of antenna ports remains unchanged, but the transmission power of each port is reduced. Therefore, this adjustment affects the beamforming gain of the network device and, in turn, the transmission power of the reference signal.

[0073] As shown in Figure 2, energy-saving scenario 1 achieves network energy saving by shutting down some digital antenna ports. On the terminal device side, after shutting down different numbers of antenna ports, the terminal device needs to perform measurements based on the number of ports to generate CSI information under different digital ports. Therefore, the 'nrofports' in the CSI resource configuration may have different values ​​under different energy-saving configurations. Therefore, the number of antenna port dimensions in the PMI matrix in the CSI reported under different energy-saving sub-configurations is different. The most common method for energy-saving scenario 1 is to distinguish different antenna port sub-configurations through the antenna port indication within a CSI-RS resource. For example, different antenna port subsets in the CSI-RS resource can correspond to different antenna port shutdown configurations.

[0074] As shown in Figure 2, in energy-saving scenario 2, the number of TXRU (transceiver unit) / RF antennas is dynamically adjusted without adjusting the number of digital antenna ports to achieve network energy saving. Therefore, in this case, the 'nrofports' in the CSI resource configuration under different energy-saving sub-configurations may remain unchanged, and the number of antenna port dimensions in the PMI matrix in the reported CSI remains unchanged, so it may be protocol transparent on the terminal device side. The most common example for energy-saving scenario 2 is that different energy-saving sub-configurations can be distinguished by different CSI-RSs, such as different CSI resources can correspond to the closure of different energy-saving sub-configurations.

[0075] In particular, in energy-saving scenario 2, it can be seen from the CSI resource configuration enhancement method 2 of the prior art that each sub-configuration must include at least one or more CSI-RS resource information, such as a CSI-RS resource ID (representation) list. The list can include one CSI-RS resource ID or multiple CSI-RS resource IDs. Therefore, one sub-configuration can be associated with at least one CSI-RS resource ID.

[0076] Then, if the terminal device side wants to report CSI based on multiple sub-configurations, when reporting based on the Type I codebook, the terminal must first report the optimal CSI-RS resource index value in CSI part 1, such as CRI (CSI RS resource index), so that the base station side can know which CSI-RS the terminal device is based on for channel measurement. However, there is currently no enhancement based on one or more sub-configurations of CRI reporting, so the terminal cannot report multiple CSI-RS resources, and the base station cannot know which CSI-RS resource each energy-saving sub-configuration is based on for CSI measurement reporting, affecting the accuracy of CSI reporting and the correspondence of CSI-RS resources.

[0077] To address at least one of the above problems, embodiments of the present application provide a channel state information report generating method, receiving method, and apparatus.

[0078] Embodiments of the first aspect

[0079] The present invention provides a method for generating a channel state information report, which is described from the perspective of a terminal device. FIG3 is a schematic diagram of the method for generating a channel state information report according to an embodiment of the present invention. As shown in FIG3 , the method includes:

[0080] 301, receiving CSI-RS resource configuration information and CSI reporting configuration information,

[0081] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0082] 302 : Generate a CSI report based on the CSI-RS resource configuration information and the CSI reporting configuration information, where the CSI report includes N CSI-RS resource indices (CRIs), where N is an integer greater than or equal to 1.

[0083] Thus, the terminal device receives CSI-RS resource configuration information and CSI reporting configuration information including at least one sub-configuration information, and generates a CSI report including at least one CSI-RS resource index based on the CSI-RS resource configuration information and the CSI reporting configuration information. Thus, the terminal device can perform joint channel measurement and reporting on one or more sub-configurations, which helps the terminal device to perform CSI measurement efficiently and accurately, ensure data transmission performance and achieve network energy saving.

[0084] It is worth noting that FIG3 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG3 above.

[0085] In some embodiments, the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, wherein one CSI-RS resource set in the at least one CSI-RS resource set configured by the CSI-RS resource configuration information includes Y CSI-RS resources, where Y is an integer greater than or equal to 1. The CSI-RS resources may be time-frequency resources, etc.

[0086] In some embodiments, the CSI reporting configuration information includes M sub-configuration information, where M is an integer greater than or equal to 1. The M sub-configuration information is used to configure M energy-saving sub-configurations (or referred to as sub-configurations), and can indicate the reporting method (for example, bit width, etc.) of the CRI corresponding to the M energy-saving sub-configurations. Thus, the terminal device can determine the CSI-RS resources for performing CSI channel measurement for each energy-saving sub-configuration based on the CSI-RS resource configuration information and the CSI reporting configuration information. In addition, the terminal device can determine the specific form of the CRI in the CSI report reported to the network device based on the CSI-RS resource configuration information and / or the CSI reporting configuration information.

[0087] In some embodiments, the meaning of a sub-configuration may be different in different energy-saving scenarios.

[0088] For example, in some energy-saving scenarios, such as energy-saving scenario 1, each CSI-RS resource in a CSI-RS resource set may correspond to M antenna port configurations, where one antenna port configuration corresponds to one sub-configuration.

[0089] For example, for a CSI-RS resource set, the CSI-RS resource set is configured with 4 CSI-RS resources, and each CSI-RS resource can be configured with a maximum of 32 antenna ports. Taking M=3 as an example, three types of antenna ports can be configured for each CSI-RS resource, for example, 32 ports, 16 ports, and 8 ports. Among them, the first sub-configuration can be 4 CSI-RS resources in the CSI-RS resource set, and each CSI-RS resource has 32 antenna ports; the second sub-configuration can be 4 CSI-RS resources in the CSI-RS resource set, and each CSI-RS resource has 16 antenna ports; the third sub-configuration can be 4 CSI-RS resources in the CSI-RS resource set, and each CSI-RS resource has 8 antenna ports. That is, the ports corresponding to the CSI-RS resources in a sub-configuration are the full set or a non-empty subset of the ports that can be configured for the CSI-RS resource.

[0090] For example, in some energy-saving scenarios, such as energy-saving scenario 2, each CSI-RS resource in a CSI-RS resource set may correspond to an antenna port configuration. A group of CSI-RS resources in the CSI-RS resource set corresponds to a sub-configuration. The group of CSI-RS resources includes one or more CSI-RS resources, and the number of antennas corresponding to each group of CSI-RS resources may be different or the same.

[0091] For example, for a CSI-RS resource set, the CSI-RS resource set is configured with 16 CSI-RS resources, and each CSI-RS resource is configured with 32 antenna ports. Taking M = 3 as an example, three groups of CSI-RS resources can be selected from the 16 CSI-RS resources: a first group of CSI-RS resources, a second group of CSI-RS resources, and a third group of CSI-RS resources, where each group of CSI-RS resources includes at least one CSI-RS resource. The first group of CSI-RS resources, the second group of CSI-RS resources, and the third group of CSI-RS resources can each correspond to an antenna configuration. For example, each antenna port of the first group of CSI-RS resources can be configured with 8 antennas; each antenna port of the second group of CSI-RS resources can be configured with 4 antennas; and each antenna port of the third group of CSI-RS resources can be configured with 2 antennas. That is, the antennas corresponding to the ports of the CSI-RS resources in a sub-configuration are the full set or a non-empty subset of the antennas that can be configured for the ports of the CSI-RS resource.

[0092] In some embodiments, the CSI reporting configuration information includes M sub-configuration information. The sub-configuration information may be different in different energy-saving scenarios.

[0093] For example, in some energy-saving scenarios, such as energy-saving scenario 1, the CSI reporting configuration information is associated with one CSI-RS resource set in at least one CSI-RS resource set configured by the CSI-RS resource configuration information. Each of the M sub-configuration information in the CSI reporting configuration information is associated with Y CSI-RS resources in one of the at least one CSI-RS resource set. In other words, each of the M sub-configuration information corresponds to all CSI-RS resources in one CSI-RS resource set.

[0094] The mth sub-configuration information among the M sub-configurations includes one port indication information, where 1≤m≤M. The port indication information indicates the ports on which the terminal device performs channel measurement. The port indication information of each sub-configuration in the M sub-configurations can be the same or different. For example, the ports or number of ports in each sub-configuration can be the same or different.

[0095] For example, for a CSI-RS resource set, the CSI-RS resource set is configured with 4 CSI-RS resources, and each CSI-RS resource can be configured with a maximum of 32 antenna ports. Taking M=3 as an example, three types of antenna ports can be configured for each CSI-RS resource, for example, 32 ports, 16 ports, and 8 ports. The port indication information can be represented by a 32-bit bitmap. For example, the first sub-configuration information can be a 32-bit bitmap with all 1s, indicating 32 ports; the second sub-configuration information can be a 32-bit bitmap with 16 bits set to 1 and the other bits set to 0, indicating 16 ports; the third sub-configuration information can be a 32-bit bitmap with 8 bits set to 1 and the other bits set to 0, indicating 8 ports.

[0096] For another example, in some energy-saving scenarios, such as energy-saving scenario 2, the CSI reporting configuration information is associated with one CSI-RS resource set in at least one CSI-RS resource set configured by the CSI-RS resource configuration information. The mth sub-configuration information among the M sub-configuration information is associated with Zm CSI-RS resources among Y CSI-RS resources in one CSI-RS resource set of the at least one CSI-RS resource set, where Zm is a positive integer and Zm≤Y, 1≤m≤M. In other words, the mth sub-configuration information among the M sub-configuration information corresponds to Zm CSI-RS resources in one CSI-RS resource set.

[0097] The number of CSI-RS resources associated with the M sub-configuration information is less than or equal to Y, wherein the CSI-RS resources associated with the M sub-configuration information are a collection of CSI-RS resources associated with each sub-configuration information in the M sub-configuration information, and the number of CSI-RS resources associated with the M sub-configuration information is

[0098] The mth sub-configuration information among the M sub-configuration information includes the IDs of Zm CSI-RS resources, thereby indicating which CSI-RS resources the terminal device is to perform channel measurement on. The number of CSI-RS resources associated with each sub-configuration information in the M sub-configuration information (i.e., the value of Zm) can be the same or different, and the corresponding number of antennas can be the same or different.

[0099] For example, for a CSI-RS resource set, the CSI-RS resource set is configured with 16 CSI-RS resources, and each CSI-RS resource is configured with 32 antenna ports. Taking M = 3 as an example, 3 groups of CSI-RS resources can be selected from the 16 CSI-RS resources, and each group of CSI-RS resources can correspond to a different antenna configuration. For example, the first sub-configuration information may include 8 CSI-RS resource IDs, indicating the 8 CSI-RS resources in a CSI-RS resource set; the second sub-configuration information may include 4 CSI-RS resource IDs, indicating the 4 CSI-RS resources in a CSI-RS resource set; and the third sub-configuration information may include 4 CSI-RS resource IDs, indicating the 4 CSI-RS resources in a CSI-RS resource set.

[0100] In some embodiments, the CSI report includes N CRIs, where N is greater than or equal to 1. A value of each of the N CRIs is related to at least one sub-configuration information.

[0101] For example, the value of each CRI in the N CRIs is associated with one sub-configuration information in the M sub-configuration information. When N=M, the value of each CRI in the N(M) CRIs is associated with each sub-configuration information in the M sub-configuration information.

[0102] For example, the value of each CRI in the N CRIs is related to all sub-configuration information in the M sub-configuration information.

[0103] The following describes the CSI report by taking the above energy-saving scenario 1 as an example.

[0104] In some embodiments, the CSI report includes N CRIs, where N is greater than or equal to 1. For example, the terminal device may select at least one CSI-RS resource from the configured CSI-RS resources based on a preset indicator, and indicate the at least one CSI-RS resource using a CRI. For example, the terminal device may select one CSI-RS resource from Y CSI-RSs configured based on an indicator such as RSRP (Reference Signal Receiving Power), and indicate the CSI-RS resource using one CRI.

[0105] In some embodiments, CSI-RS resources can be indicated by CRI in various ways. For example, the value of the nth CRI among N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among Y CSI-RS resources in a CSI-RS resource set, where 1≤n≤N.

[0106] For example, for a CSI-RS resource set, the CSI-RS resource set is configured with 4 CSI-RS resources. If the RSRP of the second CSI-RS resource is the highest, the second CSI-RS resource is indicated by a CRI value of 1.

[0107] However, the present application is not limited thereto, and CSI-RS resources may also be indicated in other ways through CRI.

[0108] In some embodiments, the bit width of the nth CRI in the N CRIs may be bits. For example, by bits represent the CRI, and thus, one CRI can be used to uniquely indicate one CSI-RS resource among Y CSI-RS resources.

[0109] In some embodiments, the bit width of the N CRIs is Y bits. For example, the N CRIs are represented by a Y-bit bitmap, where one bit in the bitmap corresponds to one CSI-RS resource among the Y CSI-RS resources.

[0110] A specific exemplary description is given below.

[0111] The operation of the terminal device may include at least one of the following:

[0112] Step 1: The terminal device receives the CSI-RS resource configuration for channel measurement, where the CSI-RS resource configuration configures one CSI-RS resource set, which contains Y = 4 CSI-RS resources. Specifically, in the CSI-RS resource configuration, the CSI-RS resource set can be configured with resource ports. For example, if 'nrofports' = '8', it means that each resource in the resource set contains 8 ports of time-frequency resource information, such as RE.

[0113] Step 2: The terminal device receives the CSI reporting configuration. The CSI reporting configuration is used to configure at least M=2 sub-configuration information, where M=2 represents two sub-configuration information: 8-port and 4-port.

[0114] Step 3: The terminal device receives the CSI reporting configuration associated with the CSI-RS resource set in the CSI-RS resource configuration. Specifically, the two sub-configuration information in the CSI reporting configuration are associated with the set containing Y = 4 CSI-RS resources. That is, the terminal side can measure the channel state information of the two sub-configurations based on each resource and report it to the network side.

[0115] Step 4: The terminal selects N optimal resources based on the channel information (large scale and / or small scale) of the four resources and reports the index value information of the optimal resource to the network side.

[0116] a) Step 4-1: The terminal side can choose to report N = M = 2 optimal resources. Among them, each resource is related to each sub-configuration information. For example, if the first CRI = '11' (2 bits), the CRI reported by the terminal side is related to the 3rd + 1st resource among Y CSI-RS resources, which means that the CSI-RS resource selection result under the first sub-configuration is the 4th resource among Y = 4 CSI-RS resources; if the second CRI = '01', the CRI reported by the terminal side is related to the 1st + 1st resource among Y CSI-RS resources, which means that the CSI-RS resource selection result under the second sub-configuration is the 2nd resource among Y = 4 CSI-RS resources.

[0117] Alternatively, the terminal side can choose to report N = M = 2 optimal resources. Each resource is associated with each sub-configuration. For example, the CRI of N resources is represented by a bitmap of Y. For example, the CRI selection is represented by a 4-bit bitmap of 1001. The CSI-RS resource selection result for the first sub-configuration is the first resource among Y = 4 CSI-RS resources; the CSI-RS resource selection result for the second sub-configuration is the fourth resource among Y = 4 CSI-RS resources.

[0118] b) Step 4-2: The terminal side can choose to report N = 1 optimal resources. Each resource is associated with all sub-configuration information. For example, if a CRI = '11', the CRI reported by the terminal side is associated with the 3+1st resource among the Y CSI-RS resources, which means that the CSI-RS resource selection result under the first sub-configuration and the second sub-configuration is the 4th resource among the Y = 4 CSI-RS resources.

[0119] Alternatively, the terminal can choose to report N = 1 optimal resources. Each resource is associated with all sub-configuration information. For example, the CRI for a resource is represented by a bitmap of Y. For example, the CRI selection is represented by a 4-bit bitmap of 0001. The CRI reported by the terminal is associated with the fourth resource among the Y CSI-RS resources.

[0120] The following describes the CSI report by taking the above energy-saving scenario 2 as an example.

[0121] In some embodiments, the CSI report includes N CRIs, where N is greater than or equal to 1. For example, the terminal device may select at least one CSI-RS resource from the configured CSI-RS resources according to a preset indicator, and indicate the at least one CSI-RS resource through N CRIs.

[0122] In some embodiments, CSI-RS resources may be indicated by CRI in various ways.

[0123] For example, the value of the nth CRI among N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among the Zm CSI-RS resources associated with the mth sub-configuration information among M sub-configuration information, where 1≤n≤N, 1≤m≤M, and N<=M.

[0124] For example, for a CSI-RS resource set, the CSI-RS resource set is configured with 16 CSI-RS resources. The first sub-configuration information indicates the 1st to 8th resources of the 16 CSI-RS resources (the first sub-configuration, CSI-RS#0-CSI-RS#7), the second sub-configuration information indicates the 9th to 11th resources of the 16 CSI-RS resources (the second sub-configuration, CSI-RS#8-CSI-RS#10), and the third sub-configuration information indicates the 12th to 16th resources of the 16 CSI-RS resources (the third sub-configuration, CSI-RS#11-CSI-RS#15). If the first CRI value is 7, it indicates the 8th resource in the first sub-configuration, CSI-RS#7; if the second CRI value is 1, it indicates the 2nd resource in the second sub-configuration, CSI-RS#9; and if the third CRI value is 3, it indicates the 4th resource in the third sub-configuration, CSI-RS#14.

[0125] However, the present application is not limited thereto, and CSI-RS resources may also be indicated in other ways through CRI.

[0126] In some embodiments, the bit width of the nth CRI among N CRIs is bits. For example, by bits represent the CRI, and thus, one CRI can be used to uniquely indicate one CSI-RS resource among the Zm CSI-RS resources.

[0127] For another example, the value of the nth CRI among N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the CSI-RS resources related to M sub-configuration information. The CSI-RS resources related to M sub-configuration information include a set of CSI-RS resources related to each sub-configuration information in the M sub-configuration information, where 1≤n≤N, N<=M.

[0128] For example, the first sub-configuration information indicates (CSI-RS#0-CSI-RS#7), the second sub-configuration information indicates (CSI-RS#8-CSI-RS#10), and the third sub-configuration information indicates (CSI-RS#11-CSI-RS#15). If the first CRI value is 7, it indicates the eighth resource in CSI-RS#0-CSI-RS#15.

[0129] However, the present application is not limited thereto, and CSI-RS resources may also be indicated in other ways through CRI.

[0130] In some embodiments, the bit width of the nth CRI among N CRIs is bits, where Zm is the number of CSI-RS resources corresponding to the m-th sub-configuration information among the M sub-configuration information, 1≤m≤M. For example, by bits represent CRI, so that one CRI can uniquely indicate One CSI-RS resource among CSI-RS resources.

[0131] For another example, the value of the nth CRI among N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among Y CSI-RS resources in a CSI-RS resource set, where 1≤n≤N.

[0132] For example, for a CSI-RS resource set, the CSI-RS resource set is configured with 4 CSI-RS resources. If the RSRP of the second CSI-RS resource is the highest, the second CSI-RS resource is indicated by a CRI value of 1.

[0133] In some embodiments, the bit width of N CRIs is bits.

[0134] However, the present application is not limited thereto, and CSI-RS resources may also be indicated in other ways through CRI.

[0135] In some embodiments, the bit width of the nth CRI in the N CRIs may be bits. For example, by bits represent the CRI, and thus, one CRI can be used to uniquely indicate one CSI-RS resource among Y CSI-RS resources.

[0136] In some embodiments, the bit width of the N CRIs is Y bits. For example, the N CRIs are represented by a Y-bit bitmap, where one bit in the bitmap corresponds to one CSI-RS resource among the Y CSI-RS resources.

[0137] A specific exemplary description is given below.

[0138] Implementation 1: The operation of the terminal device may include at least one of the following:

[0139] Step 1: The terminal device receives a CSI-RS resource configuration for channel measurement, which includes one CSI-RS resource set, which contains Y = 16 CSI-RS resources. Specifically, in the resource configuration, the CSI-RS resource set can be configured with resource ports, such as 'nrofports' = '8'. This indicates that each resource in the resource set contains 8 ports of time-frequency resource information, such as REs.

[0140] Step 2: The terminal device receives the CSI reporting configuration, which is used to configure at least M=3 sub-configuration information, where M=3 represents scenarios of different physical antenna energy-saving sub-configurations under 8 digital ports.

[0141] a) Specifically, the resource correspondence relationship under each sub-configuration can be established by configuring M=3 resource ID lists in the CSI reporting configuration.

[0142] Specifically, the Mth sub-configuration information among the three sub-configuration information is related to Zm CSI-RS resources among Y=16 CSI-RS resources in the CSI-RS resource set, where Zm is a positive integer.

[0143] FIG3A is a schematic diagram of CSI resources according to an embodiment of the present application.

[0144] a-1) As shown in Figure 3A , the resource IDs corresponding to sub-configuration 1 in the CSI reporting configuration are CSI-RS #0--#7, and Z1 = 8. This indicates that the first sub-configuration information is associated with the first eight CSI-RS resources out of the Y = 16 CSI-RS resources in the CSI-RS resource set. The resource IDs corresponding to sub-configuration 2 in the CSI reporting configuration are CSI-RS #8--#10, and Z2 = 3. This indicates that the second sub-configuration information is associated with the 9th through 11th CSI-RS resources (a total of three resources) out of the Y = 16 CSI-RS resources in the CSI-RS resource set. The resource IDs corresponding to sub-configuration 3 in the CSI reporting configuration are CSI-RS #11--#15, and Z3 = 5. This indicates that the third sub-configuration information is associated with the 12th through 16th CSI-RS resources (a total of five resources) out of the Y = 16 CSI-RS resources in the CSI-RS resource set.

[0145] a-2) As shown in FIG3A , Z1 = 8, Z2 = 3, and Z3 = 5. The sum of the values ​​of Zm = 8 + 3 + 5 = 16, which is equal to Y.

[0146] Step 3-1: Optionally, the network may also notify the terminal to report M' of the M sub-configurations for CSI reporting based on additional indication information. This additional indication information may be MAC-CE, DCI, or other information. For example, the network may notify the terminal through DCI indication to report only the CSI of the first and third sub-configuration information.

[0147] Step 3-2: The terminal device can measure the channel state information of the two sub-configurations based on the resource lists corresponding to the first and third sub-configurations, and report it to the network side.

[0148] Step 4: The terminal selects N optimal resources based on the channel information (large scale and / or small scale) of the 16 resources and reports the index value information of the optimal resource to the network side. Specifically, the CRI report can be generated in one of the following ways:

[0149] Method 1: The terminal side can choose to report N = M' = 2 optimal resources. Among them, each resource is related to each sub-configuration information. The first CRI corresponds to the resource selection under the first sub-configuration, so the reporting bit width is log (8) = 3 bits. For example, the first CRI = '011', then the '011' reported by the terminal side is related to the 3+1th resource among the Z1 CSI-RS resources in the first sub-configuration, which means that the CSI-RS resource selection result under the first sub-configuration is the 4th resource among the Z1 CSI-RS resources in the first sub-configuration; the second CRI corresponds to the resource selection under the third sub-configuration, so the reporting bit width is log (5) = 3 bits rounded up. Then the second CRI = '001', and the '001' reported on the terminal side is related to the 1+1th resource among the Z3 CSI-RS resources in the third sub-configuration, which means that the CSI-RS resource selection result under the third sub-configuration is the second resource among the Z3 CSI-RS resources in the third sub-configuration.

[0150] Method 2: The terminal side can choose to report N = M' = 2 optimal resources. Among them, each optimal resource is related to each sub-configuration information. The first CRI corresponds to the resource selection under the first sub-configuration, and the reporting bit width is log (Y = 16) = 4 bits. For example, if the first CRI = '0011', the '0011' reported by the terminal side is related to the 3rd + 1st resource among the Y resources, which means that the CSI-RS resource selection result under the first sub-configuration is the 4th resource among the Y resources; the second CRI corresponds to the resource selection under the third sub-configuration, and the reporting bit width is log (Y = 16) = 4 bits. For example, if the second CRI = '1100', the '1100' reported by the terminal side is related to the 12th + 1st resource among the Y resources, which means that the CSI-RS resource selection result under the third sub-configuration is the 13th resource among the Y = 16 CSI-RS resources.

[0151] Implementation 2: The operation of the terminal device may include at least one of the following:

[0152] Step 1: The terminal device receives a CSI-RS resource configuration for channel measurement, which includes one CSI-RS resource set, which contains Y = 16 CSI-RS resources. Specifically, in the resource configuration, the CSI-RS resource set can be configured with resource ports, such as 'nrofports' = '8'. This indicates that each resource in the resource set contains 8 ports of time-frequency resource information, such as REs.

[0153] Step 2: The terminal device receives CSI reporting configuration for configuring at least M=3 sub-configuration information, where M=3 represents scenarios of different physical antenna energy-saving sub-configurations under 8 digital ports.

[0154] a) Specifically, the resource correspondence under each sub-configuration can be determined by configuring M=3 resource ID lists in the reported configuration.

[0155] Specifically, the Mth sub-configuration information in the three sub-configuration information is associated with Zm CSI-RS resources in the Y=16 CSI-RS resources in the CSI-RS resource set, where Zm is a positive integer.

[0156] a-1) As shown in Figure 3A , the resource IDs corresponding to sub-configuration 1 in the CSI reporting configuration are CSI-RS #0--#7, and Z1 = 8. This indicates that the first sub-configuration information is associated with the first eight CSI-RS resources out of the Y = 16 CSI-RS resources in the CSI-RS resource set. The resource IDs corresponding to sub-configuration 2 in the CSI reporting configuration are CSI-RS #8--#10, and Z2 = 3. This indicates that the second sub-configuration information is associated with the 9th through 11th CSI-RS resources (a total of three resources) out of the Y = 16 CSI-RS resources in the CSI-RS resource set. The resource IDs corresponding to sub-configuration 3 in the CSI reporting configuration are CSI-RS #11--#15, and Z3 = 5. This indicates that the third sub-configuration information is associated with the 12th through 16th CSI-RS resources (a total of five resources) out of the Y = 16 CSI-RS resources in the CSI-RS resource set.

[0157] a-2) As shown in FIG3A , Z1 = 8, Z2 = 3, and Z3 = 5. The sum of the values ​​of Zm = 8 + 3 + 5 = 16, which is equal to Y.

[0158] Step 3-1: Optionally, the network side may also notify the terminal side to report M sub-configurations for CSI reporting according to additional indication information.

[0159] Step 3-2: The terminal device can measure the channel state information of the three sub-configurations according to the resource lists corresponding to the three sub-configurations and report it to the network side.

[0160] Step 4: The terminal selects N=M optimal resources based on the channel information (large scale and / or small scale) of the 16 resources and reports the index value information of the optimal resource to the network side. Specifically, the CRI report can be generated in one of the following ways:

[0161] Method 1: The terminal side can choose to report N = M = 3 optimal resources. Among them, each resource is related to each sub-configuration information. The first CRI corresponds to the resource selection under the first sub-configuration, so the reporting bit width is log (8) = 3 bits. For example, if the first CRI = 011, the 011 reported by the terminal side is related to the 3rd + 1st resource among the Z1 CSI-RS resources in the first sub-configuration, which means that the CSI-RS resource selection result under the first sub-configuration is the 4th resource among the Z1 CSI-RS resources in the first sub-configuration; the second CRI corresponds to the resource selection under the second sub-configuration, so the reporting bit width is rounded up to log (3) = 2 bits. If the second CRI = 01, the 01 reported by the terminal side is related to the 1st + 1st resource among the Z2 CSI-RS resources in the second sub-configuration, which means that the CSI-RS resource selection result under the second sub-configuration is the 2nd resource among the Z2 CSI-RS resources in the second sub-configuration. The third CRI corresponds to the resource selection under the third sub-configuration, so the reported bit width is rounded up to log(5) = 3 bits. Therefore, if the third CRI = 001, the 001 reported by the terminal side is related to the 1+1th resource among the Z3 CSI-RS resources in the third sub-configuration, indicating that the CSI-RS resource selection result under the third sub-configuration is the 2nd resource among the Z3 CSI-RS resources in the third sub-configuration.

[0162] Method 2: The terminal side can choose to report N = M = 3 optimal resources. Each optimal resource is associated with each sub-configuration information. The first CRI corresponds to the resource selection under the first sub-configuration, and the reporting bit width is log(Y = 16) = 4 bits. For example, if the first CRI = 0011, the 0011 reported by the terminal side is associated with the 3+1st resource in the Y resources, indicating that the CSI-RS resource selection result under the first sub-configuration is the 4th resource in the Y resources. The second CRI corresponds to the resource selection under the second sub-configuration, and the reporting bit width is log(Y = 16) = 4 bits. If the second CRI = 1001, the 1001 reported by the terminal side is associated with the 9+1st resource in the Y resources, indicating that the CSI-RS resource selection result under the second sub-configuration is the 10th resource in the Y = 16 CSI-RS resources. The third CRI corresponds to the resource selection under the third sub-configuration, and the reporting bit width is log(Y = 16) = 4 bits. The third CRI = 1100, and the 1100 reported by the terminal side is related to the 12th + 1st resource in the Y resources, which means that the CSI-RS resource selection result under the third sub-configuration is the 13th resource in Y = 16 CSI-RS resources.

[0163] Method 3: The terminal side can choose to report N = M = 3 optimal resources. Each optimal resource is related to each sub-configuration information. The CRI of the three resources is reported through Bitmap representation. For example, through the 16-bit bitmap, 10000000100000001 represents the selection of three CRIs. The first resource represents the CRI selection report corresponding to the first sub-configuration; the ninth resource represents the CRI selection report corresponding to the second sub-configuration; and the sixteenth resource represents the CRI selection report corresponding to the third sub-configuration.

[0164] Implementation 3: The operation of the terminal device may include at least one of the following:

[0165] Step 1: The terminal device receives a CSI-RS resource configuration for channel measurement, which includes one CSI-RS resource set, which contains Y = 32 CSI-RS resources. Specifically, in the resource configuration, the CSI-RS resource set can be configured with resource ports, such as 'nrofports' = '8'. This indicates that each resource in the resource set contains 8 ports of time-frequency resource information, such as REs.

[0166] Step 2: The terminal device receives CSI reporting configuration for configuring at least M=3 sub-configuration information, where M=3 represents scenarios of different physical antenna energy-saving sub-configurations under 8 digital ports.

[0167] Specifically, the resource correspondence under each sub-configuration can be established by configuring M=3 resource ID lists in the reporting configuration.

[0168] Specifically, the Mth sub-configuration information in the three sub-configuration information is associated with Zm CSI-RS resources in the 16 CSI-RS resources in the CSI-RS resource set, where Zm is a positive integer.

[0169] FIG3B is another schematic diagram of CSI-RS resources according to an embodiment of the present application.

[0170] a-1) As shown in Figure 3B , the resource IDs corresponding to sub-configuration 1 in the CSI reporting configuration are CSI-RS #0--#7, and Z1 = 8. This indicates that the first sub-configuration information is associated with the first eight CSI-RS resources out of the Y = 32 CSI-RS resources in the CSI-RS resource set. The resource IDs corresponding to sub-configuration 2 in the CSI reporting configuration are CSI-RS #8--#10, and Z2 = 3. This indicates that the second sub-configuration information is associated with the 9th to 11th CSI-RS resources (a total of 3 resources) out of the Y = 32 CSI-RS resources in the CSI-RS resource set. The resource IDs corresponding to sub-configuration 3 in the CSI reporting configuration are CSI-RS #11--#15, and Z3 = 5. This indicates that the third sub-configuration information is associated with the 12th to 16th CSI-RS resources (a total of 5 resources) out of the Y = 32 CSI-RS resources in the CSI-RS resource set.

[0171] a-2) As shown in FIG3B , Z1 = 8, Z2 = 3, and Z3 = 5. The sum of the values ​​of Zm = 8 + 3 + 5 = 16, which is less than Y.

[0172] Step 3-1: Optionally, the network may also notify the terminal to report M' of the M sub-configurations for CSI reporting based on additional indication information. This additional indication information may be information such as MAC-CE and DCI. For example, the network may notify the terminal through DCI indication to report only the CSI of the first and third sub-configurations.

[0173] Step 3-2: The terminal device can measure the channel state information of the two sub-configurations based on the resource lists corresponding to the first and third sub-configurations, and report it to the network side.

[0174] Step 4: The terminal selects N optimal resources based on the channel information (large scale and / or small scale) of the 16 resources, and reports the index value information of the optimal resources to the network side.

[0175] Specifically, you can generate a CRI report in one of the following ways:

[0176] Method 1: The terminal side can choose to report N = M' = 2 optimal resources. Among them, each resource is related to each sub-configuration information. The first CRI corresponds to the resource selection under the first sub-configuration, so the reporting bit width is log (8) = 3 bits. For example, if the first CRI = 011, the 011 reported by the terminal side is related to the 3rd + 1st resource among the Z1 CSI-RS resources in the first sub-configuration, which means that the CSI-RS resource selection result under the first sub-configuration is the 4th resource among the Z1 CSI-RS resources in the first sub-configuration; the second CRI corresponds to the resource selection under the third sub-configuration, so the reporting bit width is rounded up to log (5) = 3 bits. If the second CRI = 001, the 001 reported by the terminal side is related to the 1st + 1st resource among the Z3 CSI-RS resources in the third sub-configuration, which means that the CSI-RS resource selection result under the third sub-configuration is the 2nd resource among the Z3 CSI-RS resources in the third sub-configuration.

[0177] Method 2: The terminal side can choose to report N = M' = 2 optimal resources. Each optimal resource is related to each sub-configuration information. The first CRI corresponds to the resource selection under the first sub-configuration, and the reporting bit width is log(Y = 32) = 5 bits. For example, if the first CRI = 00011, the 00011 reported by the terminal side is related to the 3rd + 1st resource in the Y resources, which means that the CSI-RS resource selection result under the first sub-configuration is the 4th resource among Y = 32 CSI-RS resources; the second CRI corresponds to the resource selection under the third sub-configuration, and the reporting bit width is log(Y = 32) = 5 bits. If the second CRI = 01100, the 01100 reported by the terminal side is related to the 12th + 1st resource in the Y resources, which means that the CSI-RS resource selection result under the third sub-configuration is the 13th resource among Y = 32 CSI-RS resources.

[0178] Mode 3: The terminal side can choose to report N = M' = 2 optimal resources. Each optimal resource is related to each sub-configuration information. The first CRI corresponds to the resource selection under the first sub-configuration, and the reporting bit width is For example, if the first CRI is 0011, the 0011 reported by the terminal side is related to the 3+1th resource among all the resources corresponding to the sub-configuration, which means that the CSI-RS resource selection result under the first sub-configuration is the 4th resource among all the resources corresponding to the sub-configuration; the second CRI corresponds to the resource selection under the third sub-configuration, and the reporting bit width is Then the second CRI = 1101, and the 1101 reported on the terminal side is related to the 13+1th resource among all the corresponding resources of the sub-configuration, which means that the CSI-RS resource selection result under the third sub-configuration is the 14th resource among all the corresponding resources of the sub-configuration.

[0179] Method 4: The terminal side can choose to report N = M' = 2 optimal resources. Each optimal resource is related to each sub-configuration information. The CRI of the three resources is reported through Bitmap representation. For example, the 8+5=13-bit bitmap: 10000000000001 represents the selection of 2 CRIs. The first resource represents the CRI selection report corresponding to the first sub-configuration; the 16th resource represents the CRI selection report corresponding to the third sub-configuration;

[0180] Method 5: The terminal side can choose to report N = M' = 2 optimal resources. Among them, each optimal resource is related to each sub-configuration information. The CRI report of the three resources is represented by a Y-bit bitmap. For example, the selection of three CRIs is represented by a 32-bit bitmap: 1000000010000000100000000000000000. The first resource represents the CRI selection report corresponding to the first sub-configuration; the ninth resource represents the CRI selection report corresponding to the second sub-configuration; and the sixteenth resource represents the CRI selection report corresponding to the third sub-configuration.

[0181] Implementation 4: The operation of the terminal device may include at least one of the following:

[0182] Step 1: The terminal device receives a CSI-RS resource configuration for channel measurement, which includes one CSI-RS resource set, which contains Y = 32 CSI-RS resources. Specifically, in the resource configuration, the CSI-RS resource set can be configured with resource ports, such as 'nrofports' = '8'. This indicates that each resource in the resource set contains 8 ports of time-frequency resource information, such as REs.

[0183] Step 2: The terminal device receives CSI reporting configuration for configuring at least M=3 sub-configuration information, where M=3 represents scenarios of different physical antenna energy-saving sub-configurations under 8 digital ports.

[0184] Specifically, the resource correspondence under each sub-configuration can be established by configuring M=3 resource ID lists in the reporting configuration.

[0185] Specifically, the Mth sub-configuration information among the three sub-configuration information is related to Zm CSI-RS resources among the 16 CSI-RS resources in the CSI-RS resource set, where Zm is a positive integer.

[0186] a-1) As shown in Figure 3B , the resource IDs corresponding to sub-configuration 1 in the CSI reporting configuration are CSI-RS #0--#7, and Z1 = 8. This indicates that the first sub-configuration information is associated with the first eight CSI-RS resources out of the Y = 32 CSI-RS resources in the CSI-RS resource set. The resource IDs corresponding to sub-configuration 2 in the CSI reporting configuration are CSI-RS #8--#10, and Z2 = 3. This indicates that the second sub-configuration information is associated with the 9th to 11th CSI-RS resources (a total of 3 resources) out of the Y = 32 CSI-RS resources in the CSI-RS resource set. The resource IDs corresponding to sub-configuration 3 in the CSI reporting configuration are CSI-RS #11--#15, and Z3 = 5. This indicates that the third sub-configuration information is associated with the 12th to 16th CSI-RS resources (a total of 5 resources) out of the Y = 32 CSI-RS resources in the CSI-RS resource set.

[0187] a-2) As shown in FIG3B , Z1 = 8, Z2 = 3, and Z3 = 5. The sum of the values ​​of Zm = 8 + 3 + 5 = 16, which is less than Y.

[0188] Step 3-1: Optionally, the network side may also notify the terminal side to report M sub-configurations for CSI reporting according to additional indication information.

[0189] Step 3-2: The terminal device can measure the channel state information of the three sub-configurations according to the resource lists corresponding to the three sub-configurations and report it to the network side.

[0190] Step 4: The terminal selects N=M optimal resources based on the channel information (large scale and / or small scale) of the 16 resources and reports the index value information of the optimal resource to the network side. Specifically, the CRI report information can be generated in one of the following ways:

[0191] Method 1: The terminal side can choose to report N=M=3 optimal resources. Among them, each resource is related to each sub-configuration information. The first CRI corresponds to the resource selection under the first sub-configuration, and the reporting bit width is log(8)=3bit. For example, if the first CRI=011, the 011 reported by the terminal side is related to the 3+1th resource among the Z1 CSI-RS resources in the first sub-configuration, which means that the CSI-RS resource selection result under the first sub-configuration is the 4th resource among the Z1 CSI-RS resources in the first sub-configuration; the second CRI corresponds to the resource selection under the second sub-configuration, and the reporting bit width is log(3)=2bit rounded up. If the second CRI=01, the 01 reported by the terminal side is related to the 1+1th resource among the Z2 CSI-RS resources in the second sub-configuration, which means that the CSI-RS resource selection result under the second sub-configuration is the 2nd resource among the Z2 CSI-RS resources in the second sub-configuration. The third CRI corresponds to the resource selection under the third sub-configuration, so the reported bit width is rounded up to log(5) = 3 bits. Therefore, if the third CRI = 001, the 001 reported by the terminal side is related to the 1+1th resource among the Z3 CSI-RS resources in the third sub-configuration, indicating that the CSI-RS resource selection result under the third sub-configuration is the 2nd resource among the Z3 CSI-RS resources in the third sub-configuration.

[0192] Method 2: The terminal side can choose to report N = M = 3 optimal resources. Each optimal resource is associated with each sub-configuration information. The first CRI corresponds to the resource selection under the first sub-configuration, and the reporting bit width is log(Y = 32) = 5 bits. For example, if the first CRI = 00011, the 00011 reported by the terminal side is associated with the 3+1th resource in the Y resources, indicating that the CSI-RS resource selection result under the first sub-configuration is the 4th resource in the Y resources; the second CRI corresponds to the resource selection under the second sub-configuration, and the reporting bit width is log(Y = 32) = 5 bits. If the second CRI = 01001, the 01001 reported by the terminal side is associated with the 9+1th resource in the Y resources, indicating that the CSI-RS resource selection result under the second sub-configuration is the 9th resource in the Y = 32 CSI-RS resources; the third CRI corresponds to the resource selection under the third sub-configuration, and the reporting bit width is log(Y = 32) = 5 bits. The third CRI = 01100, and the 01100 reported by the terminal side is related to the 12th + 1st resource in the Y resources, which means that the CSI-RS resource selection result under the third sub-configuration is the 13th resource in Y = 32 CSI-RS resources.

[0193] Method 3: The terminal side can choose to report N = M = 3 optimal resources. Each optimal resource is related to each sub-configuration information. The first CRI corresponds to the resource selection under the first sub-configuration, and the reporting bit width is For example, if the first CRI is 0011, the 0011 reported by the terminal side is related to the 3+1th resource among all the resources corresponding to the sub-configuration, which means that the CSI-RS resource selection result under the first sub-configuration is the 4th resource among all the resources corresponding to the sub-configuration; the second CRI corresponds to the resource selection under the second sub-configuration, and the reporting bit width is The second CRI = 1001, and the 1001 reported by the terminal side is related to the 9+1th resource in all sub-configuration corresponding resources, which means that the CSI-RS resource selection result under the second sub-configuration is the 10th resource in all sub-configuration corresponding resources; the third CRI corresponds to the resource selection under the third sub-configuration, and the reporting bit width is Then the third CRI = 1100, and the 1100 reported on the terminal side is related to the 12+1th resource among all the sub-configuration corresponding resources, which means that the CSI-RS resource selection result under the third sub-configuration is the 13th resource among all the sub-configuration corresponding resources.

[0194] Method 4: The terminal side can choose to report N = M = 3 optimal resources. Each optimal resource is related to each sub-configuration information. The CRI of the three resources is reported through Bitmap representation. For example, the 16-bit bitmap: 10000000100000001 represents the selection of three CRIs. The first resource represents the CRI selection report corresponding to the first sub-configuration; the ninth resource represents the CRI selection report corresponding to the second sub-configuration; and the sixteenth resource represents the CRI selection report corresponding to the third sub-configuration.

[0195] Method 5: The terminal side can choose to report N = M = 3 optimal resources. Among them, each optimal resource is related to each sub-configuration information. The CRI report of the three resources is represented by the Y-bit bitmap. For example, the selection of three CRIs is represented by the 32-bit bitmap: 1000000010000000100000000000000000. The first resource represents the CRI selection report corresponding to the first sub-configuration; the ninth resource represents the CRI selection report corresponding to the second sub-configuration; and the sixteenth resource represents the CRI selection report corresponding to the third sub-configuration.

[0196] In some embodiments, at least one sub-configuration information among the M sub-configuration information in the CSI reporting configuration information may be used as reference sub-configuration information. For example, one sub-configuration information among the M sub-configuration information is indicated as reference sub-configuration information.

[0197] In some embodiments, the CSI report includes at least the channel state information of the reference sub-configuration information.

[0198] In some embodiments, the reference sub-configuration can be specified in various ways, such as a predefined manner (using a sub-configuration with a preset index among the M sub-configuration information as a reference sub-configuration), or by signaling (the signaling can be at least one of RRC, MACCE, and DCI).

[0199] The embodiment of the present application also provides another channel state information report generation method, which is explained from the terminal device side. The method may include: receiving CSI-RS resource configuration information and CSI reporting configuration information, wherein the CSI-RS (Channel State Information Reference Signal) resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, and Y and M are integers greater than or equal to 1; generating a CSI report based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein at least one sub-configuration information of the M sub-configuration information in the CSI reporting configuration information can be used as reference sub-configuration information.

[0200] In some embodiments, the CSI report includes at least the channel state information of the reference sub-configuration information.

[0201] In some embodiments, the reference sub-configuration can be specified in various ways, such as a predefined manner (using a sub-configuration with a preset index among the M sub-configuration information as a reference sub-configuration), or by signaling (the signaling can be at least one of RRC, MACCE, and DCI).

[0202] In some embodiments, "energy-saving mode" can also be replaced by: power-saving mode, sleep mode, abnormal mode, inactive mode, a mode after the network device adjusts the ratio of the energy per resource element (Energy Per Resource Element, EPRE) of PDSCH to the energy per resource element (Energy Per Resource Element, EPRE), a mode after the network device adjusts the CSI-RS resource configuration, a mode after the network device adjusts the CSI reporting configuration, a mode after the spatial domain / energy domain element is adjusted, etc. This application does not impose any restrictions on this.

[0203] In some embodiments, the spatial domain element adjustment includes the network device adjusting the number of the spatial domain elements; and the energy domain element adjustment includes the network device adjusting the transmission power of the reference signal and / or the transmission power of the data channel. The present application is not limited thereto.

[0204] In some embodiments, the spatial domain element includes at least one of the following: antenna, antenna port, logical port, reference signal port, antenna factor, antenna element, and antenna unit; and the energy domain element includes at least one of the following: reference signal transmission power, reference signal transmission power offset, data channel transmission power, and data channel transmission power offset. The present application is not limited thereto.

[0205] In some embodiments, the reference signal for wireless link quality measurement related to the adjustment of spatial domain elements and / or energy domain elements is: a synchronization signal block (SSB), or a periodic channel state information reference signal (CSI-RS for tracking), etc.

[0206] 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.

[0207] It can be seen from the above embodiments that the terminal device receives CSI-RS resource configuration information and CSI reporting configuration information including at least one sub-configuration information, and generates a CSI report including at least one CSI-RS resource index based on the CSI-RS resource configuration information and the CSI reporting configuration information. Thus, the terminal device can perform joint channel measurement and reporting on one or more sub-configurations, which helps the terminal device to perform CSI measurement efficiently and accurately and ensure data transmission performance.

[0208] Embodiments of the second aspect

[0209] This embodiment of the present application provides a method for receiving a channel state information report, which is applied to a network device. This embodiment of the present application can be combined with the embodiment of the first aspect, or implemented independently. The contents that are the same as those of the embodiment of the first aspect are not repeated here.

[0210] FIG4 is a schematic diagram of a method for receiving a channel state information report according to an embodiment of the present application. As shown in FIG4 , the method includes:

[0211] 401, sending CSI-RS resource configuration information and CSI reporting configuration information to the terminal device,

[0212] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0213] 402. Receive a CSI report generated by the terminal device based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), where N is an integer greater than or equal to 1.

[0214] In some embodiments, the CSI reporting configuration information is associated with a CSI-RS resource set among the at least one CSI-RS resource set;

[0215] The mth sub-configuration information among the M sub-configuration information is related to Zm CSI-RS resources among Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where Zm is a positive integer, and Zm≤Y, 1≤m≤M.

[0216] In some embodiments, the mth sub-configuration information includes IDs of Zm CSI-RS resources.

[0217] In some embodiments,

[0218] In some embodiments, the number of CSI-RS resources (the value of Zm) associated with each sub-configuration information in the M sub-configuration information is the same or different.

[0219] In some embodiments, the value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0220] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Zm CSI-RS resources related to the mth sub-configuration information among the M sub-configuration information, where 1≤n≤N, 1≤m≤M, and N<=M.

[0221] In some embodiments, the bit width of the nth CRI in the N CRIs is bits.

[0222] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the CSI-RS resources related to the M sub-configuration information. The CSI-RS resources related to the M sub-configuration information include a set of CSI-RS resources related to each sub-configuration information in the M sub-configuration information, where 1≤n≤N, N<=M.

[0223] In some embodiments, the bit width of the nth CRI in the N CRIs is bits, where Zm is the number of CSI-RS resources corresponding to the m-th sub-configuration information in the M sub-configuration information, 1≤m≤M; or, the bit width of N CRIs is bits.

[0224] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set among the at least one CSI-RS resource set, where 1≤n≤N.

[0225] In some embodiments, the bit width of the nth CRI in the N CRIs is bits; or, the bit width of the N CRIs is Y bits.

[0226] In some embodiments, the CSI reporting configuration information is associated with a CSI-RS resource set among the at least one CSI-RS resource set;

[0227] Each piece of the M sub-configuration information is related to Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set.

[0228] In some embodiments, the mth sub-configuration information among the M sub-configuration information includes 1 port indication information, 1≤m≤M.

[0229] In some embodiments, the value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0230] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set among the at least one CSI-RS resource set, where 1≤n≤N.

[0231] In some embodiments, the bit width of the nth CRI in the N CRIs is bits; or, the bit width of the N CRIs is Y bits.

[0232] In some embodiments, at least one sub-configuration information among the M sub-configuration information in the CSI reporting configuration information may be used as reference sub-configuration information. For example, one sub-configuration information among the M sub-configuration information is indicated as reference sub-configuration information.

[0233] In some embodiments, the CSI report includes at least the channel state information of the reference sub-configuration information.

[0234] In some embodiments, the reference sub-configuration can be specified in various ways, such as a predefined manner (using a sub-configuration with a preset index among the M sub-configuration information as a reference sub-configuration), or by signaling (the signaling can be at least one of RRC, MACCE, and DCI).

[0235] The embodiment of the present application also provides another channel state information report generation method, which is explained from the network device side. The method may include: sending CSI-RS resource configuration information and CSI reporting configuration information, wherein the CSI-RS (Channel State Information Reference Signal) resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, and Y and M are integers greater than or equal to 1; receiving a CSI report generated based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein at least one sub-configuration information of the M sub-configuration information in the CSI reporting configuration information can be used as reference sub-configuration information.

[0236] In some embodiments, the CSI report includes at least the channel state information of the reference sub-configuration information.

[0237] In some embodiments, the reference sub-configuration can be specified in various ways, such as a predefined manner (using a sub-configuration with a preset index among the M sub-configuration information as a reference sub-configuration), or by signaling (the signaling can be at least one of RRC, MACCE, and DCI).

[0238] It is worth noting that FIG4 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG4 above.

[0239] 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.

[0240] It can be seen from the above embodiments that the terminal device receives CSI-RS resource configuration information and CSI reporting configuration information including at least one sub-configuration information, and generates a CSI report including at least one CSI-RS resource index based on the CSI-RS resource configuration information and the CSI reporting configuration information. Thus, the terminal device can perform joint channel measurement and reporting on one or more sub-configurations, which helps the terminal device to perform CSI measurement efficiently and accurately, ensure data transmission performance and achieve network energy saving.

[0241] Embodiments of the third aspect

[0242] The embodiment of the present application provides a channel state information report generation device. The device may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device. The same contents as those in the embodiment of the first aspect are not repeated here.

[0243] FIG5 is a schematic diagram of a channel state information report generation device according to an embodiment of the present application. As shown in FIG5 , the channel state information report generation device 500 includes:

[0244] The receiving unit 501 receives CSI-RS resource configuration information and CSI reporting configuration information,

[0245] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0246] A generating unit 502 is configured to generate a CSI report based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indices (CRIs), where N is an integer greater than or equal to 1.

[0247] In some embodiments, the CSI reporting configuration information is associated with a CSI-RS resource set among the at least one CSI-RS resource set;

[0248] The mth sub-configuration information among the M sub-configuration information is related to Zm CSI-RS resources among Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where Zm is a positive integer, and Zm≤Y, 1≤m≤M.

[0249] In some implementations, the mth sub-configuration information includes IDs of Zm CSI-RS resources.

[0250] In some embodiments,

[0251] In some implementations, the number of CSI-RS resources (the value of Zm) associated with each sub-configuration information in the M sub-configuration information is the same or different.

[0252] In some embodiments, the value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0253] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among the Zm CSI-RS resources associated with the mth sub-configuration information among the M sub-configuration information, where 1≤n≤N, 1≤m≤M, and N<=M.

[0254] In some embodiments, the bit width of the nth CRI in the N CRIs is bits.

[0255] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the CSI-RS resources related to the M sub-configuration information. The CSI-RS resources related to the M sub-configuration information include a set of CSI-RS resources related to each sub-configuration information in the M sub-configuration information, where 1≤n≤N, N<=M.

[0256] In some embodiments, the bit width of the nth CRI in the N CRIs is bits, where Zm is the number of CSI-RS resources corresponding to the m-th sub-configuration information in the M sub-configuration information, 1≤m≤M; or, the bit width of N CRIs is bits.

[0257] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

[0258] In some embodiments, the bit width of the nth CRI in the N CRIs is bits; or, the bit width of the N CRIs is Y bits.

[0259] In some embodiments, the CSI reporting configuration information is associated with a CSI-RS resource set among the at least one CSI-RS resource set;

[0260] Each piece of the M sub-configuration information is related to Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set.

[0261] In some implementations, the mth sub-configuration information among the M sub-configuration information includes one port indication information, where 1≤m≤M.

[0262] In some embodiments, the value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0263] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

[0264] In some embodiments, the bit width of the nth CRI in the N CRIs is bits; or, the bit width of the N CRIs is Y bits.

[0265] In some embodiments, at least one sub-configuration information among the M sub-configuration information in the CSI reporting configuration information may be used as reference sub-configuration information. For example, one sub-configuration information among the M sub-configuration information is indicated as reference sub-configuration information.

[0266] In some embodiments, the CSI report includes at least the channel state information of the reference sub-configuration information.

[0267] In some embodiments, the reference sub-configuration can be specified in various ways, such as a predefined manner (using a sub-configuration with a preset index among the M sub-configuration information as a reference sub-configuration), or by signaling (the signaling can be at least one of RRC, MACCE, and DCI).

[0268] The embodiment of the present application also provides another channel state information report generation method, which is explained from the terminal device side. The method may include: receiving CSI-RS resource configuration information and CSI reporting configuration information, wherein the CSI-RS (Channel State Information Reference Signal) resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, and Y and M are integers greater than or equal to 1; generating a CSI report based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein at least one sub-configuration information of the M sub-configuration information in the CSI reporting configuration information can be used as reference sub-configuration information.

[0269] In some embodiments, the CSI report includes at least the channel state information of the reference sub-configuration information.

[0270] In some embodiments, the reference sub-configuration can be specified in various ways, such as a predefined manner (using a sub-configuration with a preset index among the M sub-configuration information as a reference sub-configuration), or by signaling (the signaling can be at least one of RRC, MACCE, and DCI).

[0271] 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.

[0272] 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 report generating device 500 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0273] In addition, for simplicity, FIG5 only illustrates the connection relationship or signal path between various components or modules. However, those skilled in the art should be aware 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; this application is not limited to this.

[0274] It can be seen from the above embodiments that the terminal device receives CSI-RS resource configuration information and CSI reporting configuration information including at least one sub-configuration information, and generates a CSI report including at least one CSI-RS resource index based on the CSI-RS resource configuration information and the CSI reporting configuration information. Thus, the terminal device can perform joint channel measurement and reporting on one or more sub-configurations, which helps the terminal device to perform CSI measurement efficiently and accurately, ensure data transmission performance and achieve network energy saving.

[0275] Embodiments of the fourth aspect

[0276] The embodiment of the present application provides a channel state information report receiving device. The device may be, for example, a network device, or one or more components or assemblies configured in the network device. The contents that are the same as those in the embodiment of the second aspect are not repeated here.

[0277] FIG6 is a schematic diagram of a channel state information report receiving apparatus according to an embodiment of the present application. As shown in FIG6 , the channel state information report receiving apparatus 600 includes:

[0278] The sending unit 601 sends CSI-RS resource configuration information and CSI reporting configuration information to the terminal device,

[0279] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0280] The receiving unit 602 receives a CSI report generated by the terminal device based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), where N is an integer greater than or equal to 1.

[0281] In some embodiments, the CSI reporting configuration information is associated with a CSI-RS resource set among the at least one CSI-RS resource set;

[0282] The mth sub-configuration information among the M sub-configuration information is related to Zm CSI-RS resources among Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where Zm is a positive integer, and Zm≤Y, 1≤m≤M.

[0283] In some implementations, the mth sub-configuration information includes IDs of Zm CSI-RS resources.

[0284] In some embodiments,

[0285] In some implementations, the number of CSI-RS resources (the value of Zm) associated with each sub-configuration information in the M sub-configuration information is the same or different.

[0286] In some embodiments, the value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0287] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among the Zm CSI-RS resources associated with the mth sub-configuration information among the M sub-configuration information, where 1≤n≤N, 1≤m≤M, and N<=M.

[0288] In some embodiments, the bit width of the nth CRI in the N CRIs is bits.

[0289] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the CSI-RS resources related to the M sub-configuration information. The CSI-RS resources related to the M sub-configuration information include a set of CSI-RS resources related to each sub-configuration information in the M sub-configuration information, where 1≤n≤N, N<=M.

[0290] In some embodiments, the bit width of the nth CRI in the N CRIs is bits, where Zm is the number of CSI-RS resources corresponding to the m-th sub-configuration information in the M sub-configuration information, 1≤m≤M; or, the bit width of N CRIs is bits.

[0291] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

[0292] In some embodiments, the bit width of the nth CRI in the N CRIs is bits; or, the bit width of the N CRIs is Y bits.

[0293] In some embodiments, the CSI reporting configuration information is associated with a CSI-RS resource set among the at least one CSI-RS resource set;

[0294] Each piece of the M sub-configuration information is related to Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set.

[0295] In some implementations, the mth sub-configuration information among the M sub-configuration information includes one port indication information, where 1≤m≤M.

[0296] In some embodiments, the value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0297] In some embodiments, the value of the nth CRI among the N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

[0298] In some embodiments, the bit width of the nth CRI in the N CRIs is bits; or, the bit width of the N CRIs is Y bits.

[0299] In some embodiments, at least one sub-configuration information among the M sub-configuration information in the CSI reporting configuration information may be used as reference sub-configuration information. For example, one sub-configuration information among the M sub-configuration information is indicated as reference sub-configuration information.

[0300] In some embodiments, the CSI report includes at least the channel state information of the reference sub-configuration information.

[0301] In some embodiments, the reference sub-configuration can be specified in various ways, such as a predefined manner (using a sub-configuration with a preset index among the M sub-configuration information as a reference sub-configuration), or by signaling (the signaling can be at least one of RRC, MACCE, and DCI).

[0302] The embodiment of the present application also provides another channel state information report generation method, which is explained from the network device side. The method may include: sending CSI-RS resource configuration information and CSI reporting configuration information, wherein the CSI-RS (Channel State Information Reference Signal) resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, and Y and M are integers greater than or equal to 1; receiving a CSI report generated based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein at least one sub-configuration information of the M sub-configuration information in the CSI reporting configuration information can be used as reference sub-configuration information.

[0303] In some embodiments, the CSI report includes at least the channel state information of the reference sub-configuration information.

[0304] In some embodiments, the reference sub-configuration can be specified in various ways, such as a predefined manner (using a sub-configuration with a preset index among the M sub-configuration information as a reference sub-configuration), or by signaling (the signaling can be at least one of RRC, MACCE, and DCI).

[0305] 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.

[0306] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The channel state information report receiving apparatus 600 may also include other components or modules. For details of these components or modules, reference may be made to related technologies.

[0307] In addition, for the sake of simplicity, FIG6 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.

[0308] It can be seen from the above embodiments that the terminal device receives CSI-RS resource configuration information and CSI reporting configuration information including at least one sub-configuration information, and generates a CSI report including at least one CSI-RS resource index based on the CSI-RS resource configuration information and the CSI reporting configuration information. Thus, the terminal device can perform joint channel measurement and reporting on one or more sub-configurations, which helps the terminal device to perform CSI measurement efficiently and accurately, ensure data transmission performance and achieve network energy saving.

[0309] Embodiments of the fifth aspect

[0310] An embodiment of the present application also provides a communication system, and reference may be made to FIG1 . The contents identical to those in the embodiments of the first to fourth aspects will not be repeated here.

[0311] In some embodiments, the communication system 100 may include at least: a network device and a terminal device, wherein the terminal device receives CSI-RS resource configuration information and CSI reporting configuration information, wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, and Y and M are integers greater than or equal to 1; a CSI report is generated based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), and N is an integer greater than or equal to 1; the network device sends the CSI-RS resource configuration information and the CSI reporting configuration information, and receives the CSI report.

[0312] An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.

[0313] Figure 7 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application. As shown in Figure 7, network device 700 may include a processor 710 (e.g., a central processing unit (CPU)) and a memory 720; memory 720 is coupled to processor 710. Memory 720 may store various data and may also store an information processing program 730, which is executed under the control of processor 710.

[0314] For example, the processor 710 may be configured to execute a program to implement the method as described in the embodiment of the second aspect. For example, the processor 710 may be configured to perform the following control: sending CSI-RS resource configuration information and CSI reporting configuration information to a terminal device, wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1; and receiving a CSI report generated by the terminal device based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), where N is an integer greater than or equal to 1.

[0315] In addition, as shown in FIG7 , network device 700 may further include: a transceiver 740 and an antenna 750, etc.; wherein, the functions of the above components are similar to those in the related art and are not further described here. It is worth noting that network device 700 does not necessarily include all the components shown in FIG7 ; in addition, network device 700 may also include components not shown in FIG7 , and reference may be made to the related art for details.

[0316] The embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.

[0317] Figure 8 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 8 , terminal device 800 may include a processor 810 and a memory 820. Memory 820 stores data and programs and is coupled to processor 810. 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.

[0318] For example, the processor 810 may be configured to execute a program to implement the method according to the embodiment of the first aspect. For example, the processor 810 may be configured to perform the following control: receiving CSI-RS resource configuration information and CSI reporting configuration information, wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1; and generating a CSI report based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CRIs, where N is an integer greater than or equal to 1.

[0319] As shown in Figure 8 , the terminal device 800 may further include: a communication module 830, an input unit 840, a display 850, and a power supply 860. The functions of these components are similar to those in the related art and are not described in detail here. It is worth noting that the terminal device 800 does not necessarily include all of the components shown in Figure 8 , and the above components are not essential. Furthermore, the terminal device 800 may also include components not shown in Figure 8 , for which reference may be made to the related art.

[0320] 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.

[0321] 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.

[0322] 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 second aspect.

[0323] 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 second aspect.

[0324] 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.

[0325] 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).

[0326] 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.

[0327] 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.

[0328] 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.

[0329] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:

[0330] Method on the terminal device side:

[0331] 1. A CSI report generation method, applied to a terminal device, comprising:

[0332] Receive CSI-RS resource configuration information and CSI reporting configuration information,

[0333] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0334] A CSI report is generated based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CRIs, where N is an integer greater than or equal to 1.

[0335] 2. The method according to Supplement 1, wherein:

[0336] The CSI reporting configuration information is related to a CSI-RS resource set in the at least one CSI-RS resource set;

[0337] The mth sub-configuration information among the M sub-configuration information is related to Zm CSI-RS resources among Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where Zm is a positive integer, and Zm≤Y, 1≤m≤M.

[0338] 3. The method according to Supplementary Note 2, wherein:

[0339] The mth sub-configuration information includes IDs of Zm CSI-RS resources.

[0340] 4. The method according to Supplement 3, wherein:

[0341] 5. The method according to Supplementary Note 2, wherein:

[0342] The number of CSI-RS resources (the value of Zm) associated with each sub-configuration information in the M sub-configuration information is the same or different.

[0343] 5a. The method according to Note 2, wherein:

[0344] The value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0345] 6. The method according to Supplement 2, wherein:

[0346] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among the Zm CSI-RS resources associated with the mth sub-configuration information among the M sub-configuration information, where 1≤n≤N, 1≤m≤M, and N<=M.

[0347] 7. The method according to Supplementary Note 6, wherein:

[0348] The bit width of the nth CRI in the N CRIs is bits.

[0349] 8. The method according to Supplementary Note 2, wherein:

[0350] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the CSI-RS resources related to the M sub-configuration information. The CSI-RS resources related to the M sub-configuration information include a set of CSI-RS resources related to each sub-configuration information in the M sub-configuration information, where 1≤n≤N, N<=M.

[0351] 9. The method according to Supplementary Note 8, wherein:

[0352] The bit width of the nth CRI in the N CRIs is bits, where Zm is the number of CSI-RS resources corresponding to the m-th sub-configuration information in the M sub-configuration information, 1≤m≤M; or, the bit width of N CRIs is bits.

[0353] 10. The method according to Supplementary Note 2, wherein:

[0354] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

[0355] 11. The method according to Supplementary Note 10, wherein:

[0356] The bit width of the nth CRI in the N CRIs is bits; or,

[0357] The bit width of the N CRIs is Y bits.

[0358] 12. The method according to Supplement 1, wherein:

[0359] The CSI reporting configuration information is related to a CSI-RS resource set in the at least one CSI-RS resource set;

[0360] Each piece of the M sub-configuration information is related to Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set.

[0361] 13. The method according to Supplement 12, wherein:

[0362] The mth sub-configuration information among the M sub-configuration information includes one port indication information, where 1≤m≤M.

[0363] 13a. The method according to Note 12, wherein:

[0364] The value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0365] 14. The method according to Supplement 12, wherein:

[0366] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

[0367] 15. The method according to Supplement 14, wherein:

[0368] The bit width of the nth CRI in the N CRIs is bits; or,

[0369] The bit width of the N CRIs is Y bits.

[0370] 16. The method according to Supplement 1, wherein:

[0371] At least one sub-configuration information among the M sub-configuration information in the CSI reporting configuration information is used as reference sub-configuration information.

[0372] 17. The method according to Supplement 16, wherein:

[0373] The CSI report includes at least the channel state information of the reference sub-configuration information.

[0374] 18. The method according to Supplement 16, wherein:

[0375] The reference subconfiguration is indicated by predefinition or signaling.

[0376] 19. A CSI report generation method, applied to a terminal device, the method comprising:

[0377] Receive CSI-RS resource configuration information and CSI reporting configuration information,

[0378] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0379] A CSI report is generated based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein at least one sub-configuration information among the M sub-configuration information in the CSI reporting configuration information may be used as reference sub-configuration information.

[0380] 20. The method according to Supplement 19, wherein:

[0381] The CSI report includes at least the channel state information of the reference sub-configuration information.

[0382] 21. The method according to Supplement 19, wherein:

[0383] The reference subconfiguration is indicated by predefinition or signaling.

[0384] Methods on the network device side

[0385] 1. A CSI report receiving method, applied to a network device, comprising:

[0386] Send CSI-RS resource configuration information and CSI reporting configuration information to the terminal device,

[0387] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0388] Receive a CSI report generated by the terminal device based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), where N is an integer greater than or equal to 1.

[0389] 2. The method according to Supplement 1, wherein:

[0390] The CSI reporting configuration information is related to a CSI-RS resource set in the at least one CSI-RS resource set;

[0391] The mth sub-configuration information among the M sub-configuration information is related to Zm CSI-RS resources among Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where Zm is a positive integer, and Zm≤Y, 1≤m≤M.

[0392] 3. The method according to Supplementary Note 2, wherein:

[0393] The mth sub-configuration information includes IDs of Zm CSI-RS resources.

[0394] 4. The method according to Supplement 3, wherein:

[0395] 5. The method according to Supplementary Note 2, wherein:

[0396] The number of CSI-RS resources (the value of Zm) associated with each sub-configuration information in the M sub-configuration information is the same or different.

[0397] 5a. The method according to Note 2, wherein:

[0398] The value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0399] 6. The method according to Supplement 2, wherein:

[0400] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among the Zm CSI-RS resources associated with the mth sub-configuration information among the M sub-configuration information, where 1≤n≤N, 1≤m≤M, and N<=M.

[0401] 7. The method according to Supplementary Note 6, wherein:

[0402] The bit width of the nth CRI in the N CRIs is bits.

[0403] 8. The method according to Supplementary Note 2, wherein:

[0404] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the CSI-RS resources related to the M sub-configuration information. The CSI-RS resources related to the M sub-configuration information include a set of CSI-RS resources related to each sub-configuration information in the M sub-configuration information, where 1≤n≤N, N<=M.

[0405] 9. The method according to Supplementary Note 8, wherein:

[0406] The bit width of the nth CRI in the N CRIs is bits, where Zm is the number of CSI-RS resources corresponding to the m-th sub-configuration information in the M sub-configuration information, 1≤m≤M; or, the bit width of N CRIs is bits.

[0407] 10. The method according to Supplementary Note 2, wherein:

[0408] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

[0409] 11. The method according to Supplementary Note 10, wherein:

[0410] The bit width of the nth CRI in the N CRIs is bits; or,

[0411] The bit width of the N CRIs is Y bits.

[0412] 12. The method according to Supplement 1, wherein:

[0413] The CSI reporting configuration information is related to a CSI-RS resource set in the at least one CSI-RS resource set;

[0414] Each piece of the M sub-configuration information is related to Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set.

[0415] 13. The method according to Supplement 12, wherein:

[0416] The mth sub-configuration information among the M sub-configuration information includes one port indication information, where 1≤m≤M.

[0417] 13a. The method according to Note 12, wherein:

[0418] The value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0419] 14. The method according to Supplement 12, wherein:

[0420] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

[0421] 15. The method according to Supplement 14, wherein:

[0422] The bit width of the nth CRI in the N CRIs is bits; or,

[0423] The bit width of the N CRIs is Y bits.

[0424] 16. The method according to Supplement 1, wherein:

[0425] At least one sub-configuration information among the M sub-configuration information in the CSI reporting configuration information is used as reference sub-configuration information.

[0426] 17. The method according to Supplement 16, wherein:

[0427] The CSI report includes at least the channel state information of the reference sub-configuration information.

[0428] 18. The method according to Supplement 16, wherein:

[0429] The reference subconfiguration is indicated by predefinition or signaling.

[0430] 19. A CSI report receiving method, applied to a network device, the method comprising:

[0431] Send CSI-RS resource configuration information and CSI reporting configuration information to the terminal device,

[0432] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0433] Receive a CSI report generated by the terminal device based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein at least one sub-configuration information among the M sub-configuration information in the CSI reporting configuration information can be used as reference sub-configuration information.

[0434] 20. The method according to Supplement 19, wherein:

[0435] The CSI report includes at least the channel state information of the reference sub-configuration information.

[0436] 21. The method according to Supplement 19, wherein:

[0437] The reference subconfiguration is indicated by predefinition or signaling.

[0438] Devices on the network equipment side

[0439] 1. A CSI report receiving apparatus, configured in a network device, comprising:

[0440] A sending unit, which sends CSI-RS resource configuration information and CSI reporting configuration information to the terminal device,

[0441] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0442] A receiving unit receives a CSI report generated by the terminal device based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), where N is an integer greater than or equal to 1.

[0443] 2. The device according to Supplement 1, wherein:

[0444] The CSI reporting configuration information is related to a CSI-RS resource set in the at least one CSI-RS resource set;

[0445] The mth sub-configuration information among the M sub-configuration information is related to Zm CSI-RS resources among Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where Zm is a positive integer, and Zm≤Y, 1≤m≤M.

[0446] 3. The device according to Supplement 2, wherein:

[0447] The mth sub-configuration information includes IDs of Zm CSI-RS resources.

[0448] 4. The method according to Supplement 3, wherein:

[0449] 5. The device according to Supplement 2, wherein:

[0450] The number of CSI-RS resources (the value of Zm) associated with each sub-configuration information in the M sub-configuration information is the same or different.

[0451] 5a. The device according to Note 2, wherein:

[0452] The value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0453] 6. The device according to Supplement 2, wherein:

[0454] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is associated with the i_n+1th CSI-RS resource among the Zm CSI-RS resources associated with the mth sub-configuration information among the M sub-configuration information, where 1≤n≤N, 1≤m≤M, and N<=M.

[0455] 7. The device according to Supplementary Note 6, wherein:

[0456] The bit width of the nth CRI in the N CRIs is bits.

[0457] 8. The device according to Supplement 2, wherein:

[0458] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the CSI-RS resources related to the M sub-configuration information. The CSI-RS resources related to the M sub-configuration information include a set of CSI-RS resources related to each sub-configuration information in the M sub-configuration information, where 1≤n≤N, N<=M.

[0459] 9. The device according to Supplementary Note 8, wherein:

[0460] The bit width of the nth CRI in the N CRIs is bits, where Zm is the number of CSI-RS resources corresponding to the m-th sub-configuration information in the M sub-configuration information, 1≤m≤M; or, the bit width of N CRIs is bits.

[0461] 10. The device according to Supplement 2, wherein:

[0462] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

[0463] 11. The device according to Supplement 10, wherein:

[0464] The bit width of the nth CRI in the N CRIs is bits; or,

[0465] The bit width of the N CRIs is Y bits.

[0466] 12. The device according to Supplement 1, wherein:

[0467] The CSI reporting configuration information is related to a CSI-RS resource set in the at least one CSI-RS resource set;

[0468] Each piece of the M sub-configuration information is related to Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set.

[0469] 13. The device according to Note 12, wherein:

[0470] The mth sub-configuration information among the M sub-configuration information includes one port indication information, where 1≤m≤M.

[0471] 13a. The device according to Note 12, wherein:

[0472] The value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

[0473] 14. The device according to Note 12, wherein:

[0474] The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

[0475] 15. The device according to Note 14, wherein:

[0476] The bit width of the nth CRI in the N CRIs is bits; or,

[0477] The bit width of the N CRIs is Y bits.

[0478] 16. The device according to Supplement 1, wherein:

[0479] At least one sub-configuration information among the M sub-configuration information in the CSI reporting configuration information is used as reference sub-configuration information.

[0480] 17. The device according to Supplement 16, wherein:

[0481] The CSI report includes at least the channel state information of the reference sub-configuration information.

[0482] 18. The device according to Supplement 16, wherein:

[0483] The reference subconfiguration is indicated by predefinition or signaling.

[0484] 19. A CSI report receiving apparatus, applied to a network device, comprising:

[0485] A sending unit, which sends CSI-RS resource configuration information and CSI reporting configuration information to the terminal device,

[0486] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1;

[0487] A receiving unit receives a CSI report generated by the terminal device based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein at least one sub-configuration information among the M sub-configuration information in the CSI reporting configuration information can be used as reference sub-configuration information.

[0488] 20. The device according to Supplement 19, wherein:

[0489] The CSI report includes at least the channel state information of the reference sub-configuration information.

[0490] 21. The device according to Supplement 19, wherein:

[0491] The reference subconfiguration is indicated by predefinition or signaling.

Claims

1. A CSI report generating device, configured in a terminal device, comprising: A receiving unit, which receives CSI-RS resource configuration information and CSI reporting configuration information, The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1; A generating unit, which generates a CSI report based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), where N is an integer greater than or equal to 1.

2. The device according to claim 1, wherein: The CSI reporting configuration information is related to a CSI-RS resource set in the at least one CSI-RS resource set; The mth sub-configuration information among the M sub-configuration information is related to Zm CSI-RS resources among Y CSI-RS resources in one CSI-RS resource set among the at least one CSI-RS resource set, where Zm is a positive integer, and Zm≤Y, 1≤m≤M.

3. The device according to claim 2, wherein: The mth sub-configuration information includes IDs of Zm CSI-RS resources.

4. The device according to claim 3, wherein:

5. The device according to claim 2, wherein: The number of CSI-RS resources associated with each sub-configuration information in the M sub-configuration information is the same or different.

6. The device according to claim 2, wherein: The value of each of the N CRIs is related to one sub-configuration information of the M sub-configuration information, and / or the value of each of the N CRIs is related to all sub-configuration information of the M sub-configuration information.

7. The device according to claim 2, wherein: The value of the nth CRI in the N CRIs is i_n, and the value of the nth CRI is i_n+1th CSI-RS resource in the Zm CSI-RS resources associated with the mth sub-configuration information in the M sub-configuration information. Source dependent, where 1≤n≤N, 1≤m≤M, N<=M.

8. The device according to claim 7, wherein: The bit width of the nth CRI among the N CRIs is bits.

9. The device according to claim 2, wherein: The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the CSI-RS resources related to the M sub-configuration information. The CSI-RS resources related to the M sub-configuration information include a set of CSI-RS resources related to each sub-configuration information in the M sub-configuration information, wherein 1≤n≤N, N<=M.

10. The device according to claim 9, wherein: The bit width of the nth CRI among the N CRIs is bits, where Zm is the number of CSI-RS resources corresponding to the m-th sub-configuration information among the M sub-configuration information, 1≤m≤M; or, The bit width of the N CRIs is bits.

11. The device according to claim 2, wherein: The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

12. The device according to claim 11, wherein: The bit width of the nth CRI among the N CRIs is bits; or, The bit width of the N CRIs is Y bits.

13. The device according to claim 1, wherein: The CSI reporting configuration information is related to a CSI-RS resource set in the at least one CSI-RS resource set; Each sub-configuration information in the M sub-configuration information is related to Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set.

14. The device according to claim 13, wherein: The m-th sub-configuration information among the M sub-configuration information includes 1 port indication information, 1≤m≤M.

15. The device according to claim 13, wherein: The value of each CRI in the N CRIs is consistent with one sub-configuration information in the M sub-configuration information. Related, and / or, the value of each CRI in the N CRIs is related to all sub-configuration information of the M sub-configuration information.

16. The device according to claim 13, wherein: The value of the nth CRI among the N CRIs is i_n, and the nth CRI is related to the i_n+1th CSI-RS resource among the Y CSI-RS resources in one CSI-RS resource set in the at least one CSI-RS resource set, where 1≤n≤N.

17. The device according to claim 16, wherein: The bit width of the nth CRI among the N CRIs is bits; or, The bit width of the N CRIs is Y bits.

18. A CSI report generation method, applied to a terminal device, the method comprising: Receive CSI-RS resource configuration information and CSI reporting configuration information, The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1; A CSI report is generated based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CRIs, where N is an integer greater than or equal to 1.

19. The method according to claim 18, wherein: The CSI reporting configuration information is related to a CSI-RS resource set in the at least one CSI-RS resource set; The mth sub-configuration information among the M sub-configuration information is related to Zm CSI-RS resources among Y CSI-RS resources in one CSI-RS resource set among the at least one CSI-RS resource set, where Zm is a positive integer, and Zm≤Y, 1≤m≤M.

20. A CSI report receiving device, configured in a network device, the device comprising: A sending unit, which sends CSI-RS resource configuration information and CSI reporting configuration information to the terminal device, The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and one CSI-RS resource set in the at least one CSI-RS resource set includes Y CSI-RS resources; the CSI reporting configuration information includes M sub-configuration information, where Y and M are integers greater than or equal to 1; A receiving unit receives a CSI report generated by the terminal device based on the CSI-RS resource configuration information and the CSI reporting configuration information, wherein the CSI report includes N CSI-RS resource indexes (CRIs), and N is an integer greater than or equal to 1.

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