Method and device for transmitting and receiving channel state information report

Abstract

The embodiment of the invention provides a method and a device for sending and receiving a channel state information report. The method comprises the following steps that: terminal equipment receives channel state information (CSI) reporting configuration; sending a channel state information (CSI) report according to the channel state information (CSI) reporting configuration; wherein the CSI report configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report at least comprises first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement. The second channel state information (CSI) is associated with a second reference signal resource for channel measurement.

Description

Method and device for sending and receiving channel state information report Technical Field

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

[0002] As a crucial component of new global infrastructure, fifth-generation (5G) communication networks have experienced rapid global development in recent years. With the development of 5G, active antenna units (AAUs) have been widely commercialized. Compared to the remote radio units (RRUs) used in 3G and 4G, AAUs consume significantly more power, leading to an exponential increase in energy consumption for 5G equipment.

[0003] 5G defines three major service types: enhanced mobile broadband (eMBB), massive machine type of communication (mMTC), and ultra-reliable low-latency communication (URLLC). This will lead to an increase in bursty small packet services in 5G. Base stations will operate 24 hours a day, and the average daily energy consumption of 5G sites will be more than twice that of 4G.

[0004] Furthermore, 3GPP has introduced key technologies such as Massive MIMO and increased RF bandwidth in the 5G era. 5G supports higher data rates and greater data traffic, requiring more transmission bandwidth. High-frequency bands will be the primary frequency band for future 5G expansion. However, the transmission characteristics of high-frequency bands limit site coverage, leading to denser deployment of 5G sites. Furthermore, the increased energy consumption of these sites will place significant pressure on operators' operating costs.

[0005] As networks expand, operators' energy consumption continues to rise. According to data released by China's Ministry of Industry and Information Technology, energy consumption will increase by approximately 80% between 2015 and 2022. Therefore, network energy conservation is crucial for reducing operating costs, and energy conservation in 5G networks is a pressing issue.

[0006] To achieve energy conservation, network devices can implement energy conservation in the time, frequency, spatial, and / or energy domains, depending on network load. For example, in the spatial and energy domains, network devices can power down some antennas when the load is low. In the time domain, network devices can implement cell-level discontinuous transmission / reception technology, which prevents network devices from transmitting and / or receiving signals during certain sleep periods.

[0007] 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.

[0008] Summary of the Invention

[0009] However, the inventors have discovered that some wireless communication application scenarios (such as energy-saving mode) can have negative impacts. For example, when network devices dynamically adjust the number of antennas or transmission power, this can cause changes in the corresponding channels, leading to inaccurate or untimely reporting of Channel State Information (CSI) from terminal devices, ultimately affecting transmission performance. How terminal devices report CSI is a key issue that currently needs to be addressed.

[0010] In response to at least one of the above problems, an embodiment of the present application provides a method and apparatus for sending and receiving a channel state information report.

[0011] According to one aspect of an embodiment of the present application, a method for sending a channel state information (CSI) report is provided, including:

[0012] The terminal device receives the channel state information (CSI) reporting configuration;

[0013] sending a channel state information (CSI) report according to the CSI reporting configuration;

[0014] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0015] According to another aspect of an embodiment of the present application, a device for transmitting a channel state information (CSI) report is provided, including:

[0016] a receiving unit configured to receive a channel state information (CSI) reporting configuration;

[0017] a sending unit configured to send a channel state information (CSI) report according to the CSI reporting configuration;

[0018] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0019] According to another aspect of an embodiment of the present application, a method for receiving a channel state information (CSI) report is provided, including:

[0020] The network device sends the channel state information (CSI) reporting configuration;

[0021] The network device receives a channel state information (CSI) report sent by the terminal device according to the CSI reporting configuration;

[0022] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0023] According to another aspect of an embodiment of the present application, a device for receiving a channel state information (CSI) report is provided, including:

[0024] a sending unit that sends a channel state information (CSI) reporting configuration;

[0025] a receiving unit configured to receive a channel state information (CSI) report sent by a terminal device according to the CSI reporting configuration;

[0026] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0027] According to another aspect of an embodiment of the present application, a communication system is provided, including:

[0028] A network device that sends a channel state information (CSI) reporting configuration and receives CSI reports;

[0029] a terminal device, configured to send the channel state information (CSI) report according to the CSI reporting configuration;

[0030] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0031] One of the beneficial effects of the embodiments of the present application is that the CSI reporting configuration is associated with at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI). As a result, even in some scenarios of wireless communication applications (such as energy-saving mode), the terminal device can efficiently and accurately send CSI reports, thereby saving CSI reporting overhead and uplink resources.

[0032] 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.

[0033] 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.

[0034] 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

[0035] 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.

[0036] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0037] FIG2 is a schematic diagram of a method for sending a channel state information report according to an embodiment of the present application;

[0038] FIG3 is a schematic diagram of a method for receiving a channel state information report according to an embodiment of the present application;

[0039] FIG4 is a schematic diagram of a device for sending a channel state information report according to an embodiment of the present application;

[0040] FIG5 is a schematic diagram of a device for receiving a channel state information report according to an embodiment of the present application;

[0041] FIG6 is a schematic diagram of a network device according to an embodiment of the present application;

[0042] FIG7 is a schematic diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] In mobile communication systems, terminal devices typically measure channel state information (CSI) based on instructions and configuration from network devices and then report the measured CSI to the network devices. When scheduling a terminal device, the network device can refer to this CSI to schedule the terminal device for transmission using the appropriate resources and transmission method. Different terminal devices may experience different physical channel conditions. Using a CSI feedback mechanism can effectively utilize resources, thereby improving overall network transmission efficiency.

[0060] In NR's CSI feedback mechanism, the terminal device measures and reports the reference signal based on the CSI configuration. CSI can be composed of the Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Channel Measurement Reference Signal Resource Indicator (CSI-RS Resource Indicator, CRI), Synchronization Signal / Physical Broadcast Channel (SS / PBCH) Block Resource Indicator (SSBRI), Layer Indicator (LI), and Rank Indication (RI).

[0061] In the NR CSI reporting framework, CSI reporting is performed by associating CSI reports with CSI resources. CSI reports can be configured into the following three types: periodic CSI reporting (P-CSI): transmitted only on the Physical Uplink Control Channel (PUCCH); semi-persistent CSI reporting (SP-CSI): transmitted on the PUCCH or Physical Uplink Shared Channel (PUSCH); and aperiodic CSI reporting (AP-CSI): transmitted only on the PUSCH.

[0062] The following first describes PUSCH-based CSI reporting. PUSCH-based CSI reporting supports Type I wideband or subband CSI, and also supports Type II CSI, as shown in Table 1 below.

[0063] Table 1

[0064] For PUSCH-based Type I, Type II, and enhanced Type II CSI, a CSI report consists of two parts (Part 1 and Part 2). The first CSI part (CSI Part 1, also referred to as Part 1) has a fixed payload size and indicates the number of information bits in the second CSI part (CSI Part 2, also referred to as Part 2).

[0065] For Type I CSI reporting: Part 1 may include one or more of rank indicator (RI), CSI reference signal resource indicator (CSI-RS Resource Indicator, CRI), and channel quality indicator (CQI) of the first codeword; Part 2 includes one or more of precoding matrix indicator (PMI) and CQI of the second codeword.

[0066] For Type II CSI reporting: Part 1 includes one or more of RI, CQI, and an indication of the number of non-zero wideband amplitudes per layer of Type II CSI; Part 2 includes the PMI of Type II CSI.

[0067] For enhanced Type II CSI reporting: Part 1 includes RI, CQI, and an indication of the total number of enhanced Type II CSI cross-layer zero amplitude coefficients; Type II includes the PMI of the enhanced Type II CSI.

[0068] When the CSI reported based on PUSCH contains Part 1 and Part 2, the terminal device (UE) can delete part of Part 2. The deletion rule of Part 2 is in descending order of priority. The priority order is consistent with the CSI domain mapping order table reported based on PUSCH.

[0069] The following further describes the PUCCH-based CSI reporting. The PUCCH-based CSI reporting supports Type I wideband or subband CSI, and also supports Type II CSI, as shown in Table 2 below.

[0070] Table 2

[0071] Periodic CSI reporting based on PUCCH formats 2, 3, and 4 supports wideband Type I CSI;

[0072] Semi-persistent CSI reporting based on PUCCH format 2 supports wideband Type I CSI;

[0073] Semi-persistent CSI reporting based on PUCCH format 3 or 4 supports wideband and subband Type I CSI, as well as Type II CSI Part 1:

[0074] For subband Type 1 CSI, and based on PUCCH format 3 or 4 reporting, the CSI payload can be divided into two parts (Part 1 and Part 2). Part 1 includes part or all of RI, CRI, and CQI corresponding to the first codeword, and Part 2 includes PMI and CQI corresponding to the second codeword.

[0075] If a CSI report contains Part 1 and Part 2, the terminal device (UE) can delete part of the content of Part 2, and the priority order is consistent with the CSI domain mapping order table based on PUCCH reporting.

[0076] The inventors discovered that in network energy-saving scenarios, in order to alleviate the channel mutation problem caused by network devices adjusting the number of antennas, a feasible solution is for the terminal device to send multiple CSI results simultaneously, each CSI result corresponding to an antenna adjustment mode or antenna configuration scheme, so that the network device can obtain CSI in a timely and accurate manner for data scheduling, and can also recommend antenna adjustment schemes for the network device.

[0077] In network energy-saving scenarios, terminal devices may send multiple CSIs simultaneously. These multiple CSIs may be included in the same CSI report or in different CSI reports. When a CSI reporting configuration includes multiple CSIs, the CSI reporting overhead may be very large, placing a heavy burden on the normal transmission of the terminal device. Therefore, in network energy-saving scenarios, CSI reporting overhead compression has become an urgent problem to be solved. The following uses energy-saving scenarios as an example for explanation, but this application is not limited to this and can be applied to any scenario involving channel state information reporting.

[0078] Embodiments of the first aspect

[0079] The embodiment of the present application provides a method for sending a channel state information report, which is described from the perspective of a terminal device. FIG2 is a schematic diagram of the method for sending a channel state information report according to an embodiment of the present application. As shown in FIG2 , the method includes:

[0080] 201, the terminal device receives a channel state information (CSI) reporting configuration;

[0081] 202. The terminal device sends a channel state information (CSI) report according to the CSI reporting configuration;

[0082] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0083] It is worth noting that FIG2 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 FIG2 above.

[0084] In some embodiments, the first reference signal resource is M ports, and the second reference signal resource is N ports, where N is less than M.

[0085] For example, the first reference signal resource is a 32-port CSI-RS resource, and the second reference signal resource is a 16-port CSI-RS resource; the present application is not limited thereto. In addition, the present application uses the first reference signal resource and the second reference signal resource as an example for illustration, but the present application is not limited to two resources or two CSIs and is also applicable to situations with more than two.

[0086] In some embodiments, the element includes at least one of the following: antenna, antenna port, logical port, reference signal port, antenna factor, antenna element, antenna unit, reference signal transmission power, reference signal transmission power offset, data channel transmission power, data channel transmission power offset.

[0087] Different modes / patterns of element adjustment correspond to different element sizes or numbers. For example, element adjustment mode 1 corresponds to a configuration of 32 reference signal ports, and element adjustment mode 2 corresponds to a configuration of 16 reference signal ports.

[0088] In some embodiments, the first reference signal resource and the second reference signal resource correspond to two modes / patterns for performing element adjustment on channel measurement resources.

[0089] For example, the terminal device is configured with a CSI Reporting Setting (or CSI-ReportConfig), and the CSI report corresponding to the CSI Reporting Setting includes a first CSI and a second CSI, and the corresponding resources for channel measurement are configured with two modes, corresponding to the first reference signal resource and the second reference signal resource, respectively.

[0090] In some embodiments, the second reference signal resource of the N-port is a part or a subset of the first reference signal resource of the M-port, or the second reference signal resource of the N-port is different from the first reference signal resource of the M-port.

[0091] In some embodiments, the channel state information (CSI) reporting configuration is per cell and / or per CC (component carrier).

[0092] In some embodiments, the first reference signal resource or the second reference signal resource is at least one of the following: at least one channel state information resource configuration (CSI-ResourceConfig), at least one non-zero power channel state information reference signal resource set (NZP-CSI-RS-ResourceSet), and at least one non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource).

[0093] For example, the second reference signal resource of the N port is a part or a subset of the first reference signal resource of the M port, representing a non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource) associated with 2 element adjustment modes, the first reference signal resource of the M port is the non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource), and the second reference signal resource of the N port is a part or a subset of the non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource), and the part or a subset can be indicated by a port index.

[0094] For another example, the second reference signal resource of the N port is different from the first reference signal resource of the M port, representing a non-zero power channel state information reference signal resource set (NZP-CSI-RS-ResourceSet) associated with two element adjustment modes, and the non-zero power channel state information reference signal resource set (NZP-CSI-RS-ResourceSet) includes two non-zero power channel state information reference signal resources (NZP-CSI-RS-Resource) for channel measurement. The first reference signal resource of the M port corresponds to the first non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource), and the second reference signal resource of the N port corresponds to the second non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource), wherein the number of ports of the first non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource) and the second non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource) are different.

[0095] The NR system supports one NZP-CSI-RS-ResourceSet containing multiple NZP-CSI-RS-Resources for channel measurement, and the embodiments of the present application are also applicable but not limited to this.

[0096] The following first provides an exemplary description of the limitations of the CSI reporting configuration.

[0097] In some embodiments, the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) supports Type I CSI with wideband granularity.

[0098] In some embodiments, the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) do not support Type I CSI with subband granularity, Type II CSI, and enhanced Type II CSI.

[0099] For example, in a network energy-saving scenario, CSI reporting only supports reporting / feedback of Type I wideband CSI, and does not support reporting / feedback of Type I subband CSI, Type II CSI, or enhanced Type II CSI.

[0100] For another example, the terminal device expects that both the first CSI and the second CSI are configured as Type I CSI with wideband granularity. Alternatively, the terminal device expects that the second CSI is configured as Type I CSI with wideband granularity.

[0101] In some embodiments, the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) supports a first type of CSI (Type I CSI).

[0102] In some embodiments, the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) do not support second type CSI and enhanced second type CSI.

[0103] For example, in a network energy-saving scenario, CSI reporting only supports Type I CSI reporting / feedback, including Type I wideband CSI reporting / feedback and Type I subband CSI reporting / feedback; Type II CSI reporting / feedback and enhanced Type II CSI reporting / feedback are not supported.

[0104] For another example, the terminal device expects that both the first CSI and the second CSI are configured as Type I CSI. Alternatively, the terminal device expects that the second CSI is configured as Type I CSI.

[0105] In some embodiments, the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) support CQI with wideband granularity (wideband CQI) and / or PMI with wideband granularity (wideband PMI).

[0106] In some embodiments, the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) do not support CQI with subband granularity (subband CQI) and / or PMI with subband granularity (subband PMI).

[0107] For example, the terminal device expects that both the first CSI and the second CSI are configured as: the CQI granularity cqi-Format Indicator is wideband CQI (wideband CQI) and / or the PMI granularity pmi-Format Indicator is wideband PMI (wideband PMI).

[0108] For another example, the terminal device expects the second CSI to be configured as: the CQI granularity cqi-Format Indicator is wideband CQI (widebandCQI) and / or the PMI granularity pmi-FormatIndicator is wideband PMI (widebandPMI); the first CSI can be configured as: the CQI granularity cqi-Format Indicator is wideband CQI (widebandCQI) and / or the PMI granularity pmi-FormatIndicator is wideband PMI (widebandPMI), or it can also be configured as: the CQI granularity cqi-Format Indicator is subband CQI (subbandCQI) and / or the PMI granularity pmi-FormatIndicator is subband PMI (subbandPMI).

[0109] In some embodiments, the CSI reporting configuration and / or the CSI report supports aperiodic CSI reporting, or a reporting type (reportConfigType) parameter in the CSI reporting configuration is configured as aperiodic.

[0110] The CSI reporting configuration and / or the CSI report does not support: PUCCH-based semi-persistent CSI reporting, PUSCH-based semi-persistent CSI reporting and periodic CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is not configured as: periodic (periodic) or PUCCH semi-persistent (semiPersistentOnPUCCH) or PUSCH semi-persistent (semiPersistentOnPUSCH).

[0111] In some embodiments, the CSI reporting configuration and / or the CSI report supports aperiodic CSI reporting and PUSCH-based semi-persistent CSI reporting, or the CSI reporting configuration and / or the CSI report supports PUSCH-based CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is configured as aperiodic (aperiodic) or PUSCH semi-persistent (semiPersistentOnPUSCH).

[0112] The CSI reporting configuration and / or the CSI report does not support periodic CSI reporting and PUCCH-based semi-persistent CSI reporting, or the CSI reporting configuration and / or the CSI report does not support PUCCH-based CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is not configured as periodic (periodic) or PUCCH semi-persistent (semiPersistentOnPUCCH).

[0113] In some embodiments, the CSI reporting configuration and / or the CSI report supports aperiodic CSI reporting, PUSCH-based semi-persistent CSI reporting, and PUCCH-based semi-persistent CSI reporting, or the CSI reporting configuration and / or the CSI report supports aperiodic CSI reporting and semi-persistent CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is configured as aperiodic or semiPersistentOn PUSCH or semiPersistentOnPUCCH.

[0114] The CSI reporting configuration and / or the CSI report does not support periodic CSI reporting, or a reporting type (reportConfigType) parameter in the CSI reporting configuration is not configured as periodic.

[0115] In some embodiments, the feedback quantity (reportQuantity) parameter in the channel state information (CSI) reporting configuration includes at least one of the following: first information indicating feedback CRI, RI, LI, PMI and CQI (cri-RI-LI-PMI-CQI), second information indicating feedback CRI, RI, PMI and CQI (cri-RI-PMI-CQI), third information indicating feedback CRI, RI, i1 (cri-RI-i1), fourth information indicating feedback CRI, RI, i1 and CQI (cri-RI-i1-CQI), and fifth information indicating feedback CRI, RI and CQI (cri-RI-CQI).

[0116] For example, the terminal device expects that the higher layer parameter reportQuantity is set to at least one of the following: 'cri-RI-LI-PMI-CQI', 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-i1-CQI', 'cri-RI-CQI'.

[0117] The following further describes the codebook type (codebookType) configuration.

[0118] In some embodiments, the codebook type (codebookType) parameter in the channel state information (CSI) reporting configuration includes at least one of the following: first type (typeI), first type single panel (typeI-SinglePanel), first type multi-panel (typeI-MultiPanel).

[0119] For example, in a network energy-saving scenario, the codebook type (codebookType) supports type 1 configuration but not type 2 configuration, that is, supports Type I-SinglePanel and / or Type I-MultiPanel but does not support Type II configuration and Type II PortSelection configuration.

[0120] In some embodiments, the channel state information (CSI) reporting configuration is associated with the first reference signal resource and the second reference signal resource, and the codebook type (codebookType) is expected to be set to a first parameter, and the first parameter is a first type (typeI) and / or a first type single panel (typeI-SinglePanel) and / or a first type multi-panel (typeI-MultiPanel).

[0121] For example, the terminal device expects that the high-level parameter codebookType is set to include at least one of the following: 'typeI', 'typeI-SinglePanel', and 'typeI-MultiPanel'.

[0122] The following is a schematic description of the codebook configuration.

[0123] In some embodiments, a codebook configuration (codebookConfig) in the channel state information (CSI) reporting configuration is configured with a first codebook subset restriction (codebook subset restriction) and a second codebook subset restriction, wherein the first codebook subset restriction applies to a reported PMI associated with the first reference signal resource, and the second codebook subset restriction applies to a reported PMI associated with the second reference signal resource.

[0124] For example, two codebook subset restrictions are configured in the CodebookConfig in the CSI-ReportConfig. The first codebook subset restriction applies to the reported PMI associated with the CSI-RS resource in the first mode (pattern 1 / mode 1), and the second codebook subset restriction applies to the reported PMI associated with the CSI-RS resource in the second mode (pattern 2 or mode 2). (The first restriction applies to a reported PMI associated to a CSI-RS resource in mode 1. The second restriction applies to a reported PMI associated to a CSI-RS resource in mode 2).

[0125] Alternatively, configure two Codebook subset restrictions in CodebookConfig in CSI-ReportConfig. The first Codebook subset restriction applies to a reported PMI associated to the first reference signal resource, and the second Codebook subset restriction applies to a reported PMI associated to the second reference signal resource. st reference signal resource.The second restriction applies to a reported PMI associated to the 2 nd reference signal resource).

[0126] In some embodiments, the codebook configuration (codebookConfig) in the channel state information (CSI) reporting configuration is configured with a codebook subset restriction, where the codebook subset restriction is applicable to the reported PMI associated with the first reference signal resource, and a subset of the codebook subset restriction is applicable to the reported PMI associated with the second reference signal resource.

[0127] For example, if one codebook subset restriction is configured in the CodebookConfig in the CSI-ReportConfig, the entire codebook subset restriction (e.g., all bits) applies to the reported PMI associated with the CSI-RS resource in the first mode (pattern 1 / mode 1), or to the reported PMI associated with the first reference signal resource. A portion or a subset (e.g., a portion of bits) of the codebook subset restriction applies to the reported PMI associated with the CSI-RS resource in the second mode (pattern 2 / mode 2), or to the reported PMI associated with the second reference signal resource.

[0128] In some embodiments, the codebook configuration (codebookConfig) in the channel state information (CSI) reporting configuration is configured with a first codebook subset restriction (codebook subset restriction) and a second codebook subset restriction, for example, which can be named as a first value of the first parameter of the codebook type and a second value of the first parameter of the codebook type, wherein the first reference signal resource corresponds to the first value of the first parameter of the codebook type, and the second reference signal resource corresponds to the second value of the first parameter of the codebook type.

[0129] For example, the codebook parameters of typeI-SinglePanel-Pattern / Mode 1 and typeI-SinglePanel-Pattern / Mode 2 are defined, Pattern / Mode 1 corresponds to the first reference signal resource, that is, the first mode is adjusted corresponding to the spatial / energy domain elements in the network energy-saving scenario, Pattern / Mode 2 corresponds to the second reference signal resource, that is, the second mode is adjusted corresponding to the spatial / energy domain elements in the network energy-saving scenario, typeI-SinglePanel-Pattern / Mode 1 indicates the codebook type configuration associated with the first reference signal resource, that is, the codebook type configuration of typeI-SinglePanel in the first mode is adjusted by the spatial / energy domain elements in the network energy-saving scenario, typeI-SinglePanel-Pattern / Mode 2 indicates the codebook type configuration associated with the second reference signal resource, that is, the codebook type configuration of typeI-SinglePanel in the second mode is adjusted by the spatial / energy domain elements in the network energy-saving scenario.

[0130] For another example, the codebook parameters of typeI-MultiPanel-Pattern / Mode 1 and typeI-MultiPanel-Pattern / Mode 2 are defined, Pattern / Mode1 corresponds to the first reference signal resource, that is, the first mode is adjusted corresponding to the spatial / energy domain element in the network energy-saving scenario, Pattern / Mode2 corresponds to the second reference signal resource, that is, the second mode is adjusted corresponding to the spatial / energy domain element in the network energy-saving scenario, typeI-MultiPanel-Pattern / Mode1 represents the codebook type configuration associated with the first reference signal resource, that is, the codebook type configuration of typeI-MultiPanel in the first mode is adjusted by the spatial / energy domain element in the network energy-saving scenario, typeI-MultiPanel-Pattern / Mode2 represents the codebook type configuration associated with the second reference signal resource, that is, the codebook type configuration of typeI-SinglePanel in the second mode is adjusted by the spatial / energy domain element in the network energy-saving scenario.

[0131] The above-mentioned Pattern / Mode is only a schematic explanation and the terms are not limited thereto. For example, it can also be called group or set.

[0132] Table 3 illustrates an example of a newly defined codebook type.

[0133] Table 3

[0134] In some embodiments, the channel state information (CSI) reporting configuration includes a second parameter, where the second parameter is used to indicate at least one of the following:

[0135] Whether the CSI report contains two or at least two CSIs;

[0136] Whether the CSI report is associated with two or at least two modes / patterns;

[0137] Whether the CSI report is related to network energy saving;

[0138] Whether the CSI report is associated with a first reference signal resource and a second reference signal resource used for channel measurement.

[0139] For example, a second parameter is added to the CSI reporting configuration (CSI-ReportConfig), and the second parameter is used to indicate whether the current CSI report contains two or at least two CSIs, and / or whether the current CSI report is associated with two or at least two spatial / energy domain element adjustment modes, and / or whether the current CSI report is related to network energy saving, etc.

[0140] For example, the second parameter may be csi-ReportPattern, whose value may be ENUMERATED{enable,disable}, ENUMERATED{true}, or ENUMERATED{on,off}. When the value of the second parameter is true, on, or enable, it indicates that the current CSI report contains two or at least two CSIs, and / or the current CSI report is associated with two or at least two spatial / energy domain element adjustment modes, and / or the current CSI report is related to network energy saving, etc.

[0141] In some embodiments, the channel state information (CSI) reporting configuration includes a second parameter, where the second parameter is used to indicate at least one of the following:

[0142] The CSI report includes the number of CSIs;

[0143] The mode / pattern associated with the CSI report;

[0144] The number of modes / patterns associated with the CSI report;

[0145] a CSI feedback quantity associated with the CSI report;

[0146] Whether the CSI report is associated with the number of channel measurement reference signal resources;

[0147] When the second parameter signal resource is a part of the first reference signal resource, port indication information of the second reference signal resource.

[0148] The above schematically illustrates the second parameter, and the present application is not limited thereto. The second parameter can be sent by the network device to the terminal device via any one or any combination of RRC signaling, MAC CE, or DCI. The following description is made using RRC signaling configuration as an example.

[0149] For example, a second parameter is added to the CSI reporting configuration (CSI-ReportConfig), and the second parameter is used to indicate how many CSIs are included in the current CSI report, and / or how many spatial / energy domain element adjustment modes are associated with the current CSI report, and / or how many CSIs in the current CSI report are related to network energy saving, and so on.

[0150] For example, the second parameter may be csi-ReportPattern, and its value may be ENUMERATED{CSImode1, CSImode2}. When the second parameter is not configured / does not appear, it indicates that the current CSI report adopts the existing technology, and the CSI report includes one CSI; when the second parameter value is CSImode1, it indicates that the current CSI report includes the first CSI and the second CSI, and is associated with the first reference signal resource and the second reference signal resource, and the first mode and / or the second mode are adjusted corresponding to the spatial / energy domain elements, and / or the current CSI report includes 2 CSIs and the feedback amount in each CSI; when the second parameter value is CSImode2, it indicates that the current CSI report includes the first, second, third, and fourth CSIs, and is associated with the first, second, third, and fourth reference signal resources, and the first, second, third, and fourth modes are adjusted corresponding to the spatial / energy domain elements, and / or the current CSI report includes 4 CSIs and the feedback amount in each CSI.

[0151] The CSI feedback amount is schematically described below. For example, the CSI reporting configuration (CSI-ReportConfig) includes the second parameter, and when the high-level parameter is set to enable, on, or true, or CSImode1 or CSImode2, the CSI reports multiple CSIs.

[0152] In some embodiments, based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first CRI and a second CRI, or sends the first CRI without sending the second CRI, or sends neither the first CRI nor the second CRI; the first CRI and the second CRI are associated with the first reference signal resource and the second reference signal resource, respectively, or are associated with the first CSI and the second CSI, respectively.

[0153] For example, the terminal device reports: all feedback amounts of the first CSI + all feedback amounts of the second CSI. For example, CRI1, CRI2, RI1, RI2, CQI1, CQI2, PMI1, PMI2, LI1, LI2; wherein the first CSI includes CRI1, RI1, CQI1, PMI1, LI1, and the second CSI includes CRI2, RI2, CQI2, PMI2, LI2;

[0154] Alternatively, the terminal device reports: two CRIs, two RIs, two PMIs, two CQIs, and two LIs (if configured), and associates them with the first reference signal resource and the second reference signal resource, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0155] For another example, the terminal device reports the full feedback amount of the first CSI + the partial feedback amount of the second CSI. The omission of CRI in the second CSI indicates that the CRI of the second CSI is the same as the CRI of the first CSI and can be omitted from reporting. The terminal device reports: CRI1, RI1, RI2, CQI1, CQI2, PMI1, PMI2, LI1, LI2, where the first CSI includes CRI1, RI1, CQI1, PMI1, LI1, and the second CSI includes RI2, CQI2, PMI2, and LI2.

[0156] Alternatively, the terminal device reports: one CRI, two RIs, two PMIs, two CQIs, and two LIs (if configured). The CRI is associated with the first reference signal resource, and the two RIs, two PMIs, two CQIs, and two LIs are associated with the first reference signal resource and the second reference signal resource, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0157] For another example, the terminal device reports partial feedback of the first CSI + partial feedback of the second CSI. CRI is omitted from both the first and second CSI, indicating that the terminal device does not need to report CRI. The terminal device reports: RI1, RI2, CQI1, CQI2, PMI1, PMI2, LI1, LI2, where the first CSI includes RI1, CQI1, PMI1, LI1, and the second CSI includes RI2, CQI2, PMI2, LI2.

[0158] Alternatively, the terminal device reports: 2 RIs, 2 PMIs, 2 CQIs, and 2 LIs (if configured), 2 RIs, 2 PMIs, 2 CQIs, and 2 LIs associated with the first reference signal resource and the second reference signal resource, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0159] In some embodiments, based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first RI and a second RI, or sends a first RI; the first RI and the second RI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first CSI and the second CSI.

[0160] For example, the terminal device reports the full feedback amount of the first CSI + the partial feedback amount of the second CSI. The RI of the first CSI and the RI of the second CSI are the same. The terminal device only needs to report the RI of the first CSI, and the RI of the second CSI can be omitted. The network device knows that the RI of the second CSI is the same as the RI of the first CSI. The terminal device reports: CRI1, CRI2, RI1, CQI1, CQI2, PMI1, PMI2, LI1, LI2; among which the first CSI includes CRI1, RI1, CQI1, PMI1, LI1, and the second CSI includes CRI2, CQI2, PMI2, and LI2.

[0161] Alternatively, the terminal device reports: 2 CRIs, 1 RI, 2 PMIs, 2 CQIs, and 2 LIs (if configured), where the RI is associated with the first reference signal resource, and the 2 CRIs, 2 PMIs, 2 CQIs, and 2 LIs are associated with the first reference signal resource and the second reference signal resource, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0162] In some embodiments, based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first PMI and a second PMI, or sends the first PMI; the network device derives the second PMI based on the first PMI; the first PMI and the second PMI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first CSI and the second CSI.

[0163] For example, the terminal device reports the full feedback amount of the first CSI + the partial feedback amount of the second CSI. The PMI is omitted in the second CSI, indicating that the PMI of the second CSI can be derived from the PMI of the first CSI and can be omitted from reporting. The terminal device reports: CRI1, CRI2, RI1, RI2, CQI1, CQI2, PMI1, LI1, LI2, where the first CSI includes CRI1, RI1, CQI1, PMI1, LI1, and the second CSI includes CRI2, RI2, CQI2, and LI2.

[0164] Alternatively, the terminal device reports: 2 CRIs, 2 RIs, 1 PMI, 2 CQIs, and 2 LIs (if configured), where the PMI is associated with the first reference signal resource, and the 2 RIs, 2 CRIs, 2 CQIs, and 2 LIs are associated with the first reference signal resource and the second reference signal resource, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0165] In some embodiments, based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first PMI and a first PMI offset; the network device derives the second PMI based on the first PMI and the first PMI offset; the first PMI and the first PMI offset are associated with the first reference signal resource and the second reference signal resource, respectively, or are associated with the first CSI and the second CSI, respectively.

[0166] For example, the PMI2 of the second CSI is an offset of the PMI1 of the first CSI. The terminal device reports the PMI1 and PMI offset of the first CSI. The network device can infer the PMI of the second CSI based on the two parameters to save reporting bits. The terminal device reports: CRI1, CRI2, RI1, RI2, CQI1, CQI2, PMI1, PMI1_offset, LI1, LI2, where the first CSI includes CRI1, RI1, CQI1, PMI1, LI1, and the second CSI includes CRI2, RI2, CQI2, PMI1_offset, LI2.

[0167] Alternatively, the terminal device reports: 2 CRIs, 2 RIs, 1 PMI, 1 PMI offset, 2 CQIs, and 2 LIs (if configured), where the PMI offset is associated with the second reference signal resource, and 2 RIs, 2 CRIs, 2 CQIs, and 2 LIs are associated with the first reference signal resource and the second reference signal resource, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0168] In some embodiments, based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first CQI and a second CQI, or sends a first CQI; the network device derives the second CQI based on the first CQI; the first CQI and the second CQI are associated with the first reference signal resource and the second reference signal resource, respectively, or are associated with the first CSI and the second CSI, respectively.

[0169] For example, the terminal device reports the full feedback amount of the first CSI + the partial feedback amount of the second CSI. The CQI is omitted from the second CSI, indicating that the CQI of the second CSI can be derived from the CQI of the first CSI and can be omitted from reporting. The terminal device reports: CRI1, CRI2, RI1, RI2, CQI1, PMI1, PMI2, LI1, LI2, where the first CSI includes CRI1, RI1, CQI1, PMI1, LI1, and the second CSI includes CRI2, RI2, PMI2, LI2.

[0170] Alternatively, the terminal device reports: 2 CRIs, 2 RIs, 2 PMIs, 1 CQI, and 2 LIs (if configured). The CQI is associated with the first reference signal resource, and the 2 RIs, 2 CRIs, 2 PMIs, and 2 LIs are associated with the first reference signal resource and the second reference signal resource, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0171] In some embodiments, based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first CQI and a first CQI offset; the network device derives a second CQI based on the first CQI and the first CQI offset; the first CQI and the first CQI offset are associated with the first reference signal resource and the second reference signal resource, respectively, or are associated with the first CSI and the second CSI, respectively.

[0172] For example, the CQI2 of the second CSI is an offset of the CQI1 of the first CSI. For example, the wideband CQI1 of the first CSI is 4 bits, and the wideband CQI2 of the second CSI only reports a 2-bit offset, that is, an offset relative to CQI1, to save reporting bits; the network device can derive the CQI2 of the second CSI based on the CQI1 and CQI1_offset of the first CSI. The terminal device reports: CRI1, CRI2, RI1, RI2, CQI1, CQI1_offset, PMI1, PMI2, LI1, LI2, where the first CSI includes CRI1, RI1, CQI1, PMI1, LI1, and the second CSI includes CRI2, RI2, CQI1_offset, PMI2, and LI2.

[0173] Alternatively, the terminal device reports: 2 CRIs, 2 RIs, 2 PMIs, 1 CQI, 1 CQI offset, and 2 LIs (if configured), where the CQI offset is associated with the second reference signal resource, and 2 RIs, 2 CRIs, 2 PMIs, and 2 LIs are associated with the first reference signal resource and the second reference signal resource, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0174] In some embodiments, when LI is configured, based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends the first LI and the second LI, or sends the first LI without sending the second LI, or neither sends the first LI nor the second LI.

[0175] The above exemplary embodiments illustrate some situations in which CSI is reported, and the present application is not limited thereto. The above methods can be implemented individually or in combination.

[0176] For example, the first CSI includes CRI1, RI1, PMI1, CQI1, LI1, and the second CSI includes RI2, PMI1_offset, CQI1_offset; therefore, the CSI report includes CRI1, RI1, RI2, PMI1, PMI1_offset, CQI1, CQI1_offset, LI1.

[0177] For another example, the first CSI includes CRI1, RI1, PMI1, CQI1, LI1, and the second CSI includes RI2, PMI1_offset, CQI2, so the CSI report includes CRI1, RI1, RI2, PMI1, PMI1_offset, CQI1, CQI2, LI1; and so on.

[0178] The above description is made by taking the first CSI and the second CSI as an example, but the present application is not limited thereto. The CSI report may include more than two CSIs. The following schematically illustrates the case of N CSIs.

[0179] In some embodiments, the CSI report includes N CSIs, the CSI reporting configuration is at least associated with N reference signal resources used for channel measurement, the N CSIs are respectively associated with the N reference signal resources, and N is greater than or equal to 2.

[0180] In some embodiments, the terminal device selects / decides / determines that the CSI report includes K CSIs, where the K CSIs include at least the first CSI and the second CSI, where K is greater than or equal to 2 and K is less than or equal to N. The first CSI and the third parameter of the K CSIs are included in a first part (CSI Part I) of the CSI report, and the remaining (K-1) CSIs are included in a second part (CSI Part II) of the CSI report.

[0181] The third parameter is used to indicate the feedback amount and / or bit size of the (K-1) CSIs in the second part (CSI Part II). For example, the third parameter indicates whether the (K-1) CSIs in CSI Part II include CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

[0182] For example, the terminal device sends the first CSI and the second CSI. The first CSI includes all CRI, RI, PMI, and CQI, and is included in CSI Part I. The second CSI is included in Part II. Whether the second CSI includes PMI or RI is determined by the third parameter.

[0183] Unlike the previous embodiment that specifies whether the second CSI sends RI or PMI, here the terminal device determines whether to send part of it (such as RI, PMI, or CQI) and indicates it through the third parameter. This can further increase flexibility.

[0184] In some embodiments, the CSI reporting configuration is associated with at least N reference signal resources for channel measurement, and / or the CSI report includes N channel state information (CSI), and the N CSIs are respectively associated with the N reference signal resources.

[0185] In some embodiments, the terminal device selects / decides / determines that the CSI report includes K CSIs, where K is greater than or equal to 1 and K is less than or equal to N. The first CSI and the third parameter of the K CSIs are included in a first part (CSI Part I) of the CSI report, and the remaining (K-1) CSIs are included in a second part (CSI Part II) of the CSI report.

[0186] The third parameter is used to indicate the feedback amount and / or bit size of the (K-1) CSIs in the second part (CSI Part II). For example, the third parameter indicates whether the (K-1) CSIs in CSI Part II include CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

[0187] 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.

[0188] It can be seen from the above embodiments that even in some scenarios of wireless communication applications (such as energy-saving mode), the terminal device can send CSI reports efficiently and accurately, and can save CSI reporting overhead and uplink resources.

[0189] Embodiments of the second aspect

[0190] The embodiment of the present application provides a method for receiving channel state information, which is described from the perspective of a network device. The embodiment of the second aspect can be combined with the embodiment of the first aspect, and the same contents as the embodiment of the first aspect will not be repeated.

[0191] FIG3 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 FIG3 , the method includes:

[0192] 301, the network device sends a channel state information (CSI) reporting configuration;

[0193] 302. The network device receives a channel state information (CSI) report sent by a terminal device according to the CSI reporting configuration;

[0194] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0195] 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.

[0196] 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.

[0197] It can be seen from the above embodiments that even in some scenarios of wireless communication applications (such as energy-saving mode), the terminal device can send CSI reports efficiently and accurately, and can save CSI reporting overhead and uplink resources.

[0198] Embodiments of the third aspect

[0199] The embodiment of the present application provides a device for sending a channel state information report. 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.

[0200] FIG4 is a schematic diagram of a device for transmitting a channel state information report according to an embodiment of the present application. As shown in FIG4 , the device for transmitting a channel state information report 400 includes:

[0201] A receiving unit 401 receives a channel state information (CSI) reporting configuration;

[0202] a sending unit 402 configured to send a channel state information (CSI) report according to the CSI reporting configuration;

[0203] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0204] In some embodiments, the first reference signal resource is M ports, and the second reference signal resource is N ports, where N is less than M.

[0205] In some embodiments, the second reference signal resource of the N-port is a part of the first reference signal resource of the M-port, or the second reference signal resource of the N-port is different from the first reference signal resource of the M-port.

[0206] In some embodiments, the channel state information (CSI) reporting configuration is per cell and / or per CC (component carrier).

[0207] In some embodiments, the elements include at least one of the following: antenna, antenna port, logical port, reference signal port, antenna factor, antenna element, antenna unit, reference signal transmission power, reference signal transmission power offset, data channel transmission power, data channel transmission power offset.

[0208] In some embodiments, the first reference signal resource or the second reference signal resource includes at least one of the following: at least one channel state information resource configuration (CSI-ResourceConfig), at least one non-zero power channel state information reference signal resource set (NZP-CSI-RS-ResourceSet), and at least one non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource).

[0209] In some embodiments, the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) supports Type I CSI with wideband granularity.

[0210] In some embodiments, the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) do not support Type I CSI with subband granularity, Type II CSI, and enhanced Type II CSI.

[0211] In some embodiments, the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) supports a first type of CSI (Type I CSI).

[0212] In some embodiments, the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) do not support second type CSI and enhanced second type CSI.

[0213] In some embodiments, the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) supports CQI with wideband granularity (wideband CQI) and / or PMI with wideband granularity (wideband PMI).

[0214] In some embodiments, the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) do not support CQI with subband granularity (subband CQI) and / or PMI with subband granularity (subband PMI).

[0215] In some embodiments, the CSI report supports aperiodic CSI reporting, or a reporting type (reportConfigType) parameter in the CSI reporting configuration is configured as aperiodic.

[0216] In some embodiments, the CSI report does not support: PUCCH-based semi-persistent CSI reporting, PUSCH-based semi-persistent CSI reporting and periodic CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is not configured as: periodic or PUCCH semi-persistent (semiPersistentOnPUCCH) or PUSCH semi-persistent (semiPersistentOnPUSCH).

[0217] In some embodiments, the CSI report supports aperiodic CSI reporting and PUSCH-based semi-persistent CSI reporting, or the CSI report supports PUSCH-based CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is configured as aperiodic (aperiodic) or PUSCH semi-persistent (semiPersistentOnPUSCH).

[0218] In some embodiments, the CSI report does not support periodic CSI reporting and PUCCH-based semi-persistent CSI reporting, or the CSI report does not support PUCCH-based CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is not configured as periodic (periodic) or PUCCH semi-persistent (semiPersistentOnPUCCH).

[0219] In some embodiments, the CSI report supports aperiodic CSI reporting, PUSCH-based semi-persistent CSI reporting, and PUCCH-based semi-persistent CSI reporting, or the CSI report supports aperiodic CSI reporting and semi-persistent CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is configured as aperiodic or semiPersistentOnPUSCH or semiPersistentOnPUCCH.

[0220] In some embodiments, the CSI report does not support periodic CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is not configured as periodic.

[0221] In some embodiments, the feedback quantity (reportQuantity) parameter in the channel state information (CSI) reporting configuration includes at least one of the following: first information indicating feedback CRI, RI, LI, PMI and CQI (cri-RI-LI-PMI-CQI), second information indicating feedback CRI, RI, PMI and CQI (cri-RI-PMI-CQI), third information indicating feedback CRI, RI, i1 (cri-RI-i1), fourth information indicating feedback CRI, RI, i1 and CQI (cri-RI-i1-CQI), and fifth information indicating feedback CRI, RI and CQI (cri-RI-CQI).

[0222] In some embodiments, the codebook type (codebookType) parameter in the channel state information (CSI) reporting configuration includes at least one of the following: a first type single panel (typeI-SinglePanel) and a first type multi-panel (typeI-MultiPanel).

[0223] In some embodiments, the channel state information (CSI) reporting configuration is associated with the first reference signal resource and the second reference signal resource, and the codebook type (codebookType) is expected to be set to a first parameter, and the first parameter is a first type (typeI) and / or a first type single panel (typeI-SinglePanel) and / or a first type multi-panel (typeI-MultiPanel).

[0224] In some embodiments, a codebook configuration (codebookConfig) in the channel state information (CSI) reporting configuration is configured with a first codebook subset restriction (codebook subset restriction) and a second codebook subset restriction, wherein the first codebook subset restriction applies to a reported PMI associated with the first reference signal resource, and the second codebook subset restriction applies to a reported PMI associated with the second reference signal resource.

[0225] In some embodiments, the codebook configuration (codebookConfig) in the channel state information (CSI) reporting configuration is configured with a codebook subset restriction, where the codebook subset restriction is applicable to the reported PMI associated with the first reference signal resource, and a subset of the codebook subset restriction is applicable to the reported PMI associated with the second reference signal resource.

[0226] In some embodiments, the codebook configuration (codebookConfig) in the channel state information (CSI) reporting configuration is configured with a first codebook subset restriction (codebook subset restriction) and a second codebook subset restriction, wherein the first reference signal resource corresponds to a first value of a first parameter of a codebook type, and the second reference signal resource corresponds to a second value of the first parameter of a codebook type.

[0227] In some embodiments, the channel state information (CSI) reporting configuration includes a second parameter, where the second parameter is used to indicate at least one of the following:

[0228] Whether the CSI report contains multiple CSIs;

[0229] Whether the CSI report is associated with multiple modes / patterns;

[0230] Whether the CSI report is related to network energy saving;

[0231] Whether the CSI report is associated with a first reference signal resource and a second reference signal resource used for channel measurement.

[0232] In some embodiments, the channel state information (CSI) reporting configuration includes a second parameter, where the second parameter is used to indicate at least one of the following:

[0233] The CSI report includes the number of CSIs;

[0234] The mode / pattern associated with the CSI report;

[0235] The number of modes / patterns associated with the CSI report;

[0236] a CSI feedback quantity associated with the CSI report;

[0237] Whether the CSI report is associated with the number of channel measurement reference signal resources;

[0238] When the second parameter signal resource is a part of the first reference signal resource, port indication information of the second reference signal resource.

[0239] In some embodiments, based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first CRI and a second CRI, or sends the first CRI and does not send the second CRI, or sends neither the first CRI nor the second CRI;

[0240] The first CRI and the second CRI are associated with the first reference signal resource and the second reference signal resource, respectively, or are associated with the first CSI and the second CSI, respectively.

[0241] In some embodiments, based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first RI and a second RI, or sends the first RI;

[0242] The first RI and the second RI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first CSI and the second CSI.

[0243] In some embodiments, based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends the first PMI and the second PMI, or sends the first PMI;

[0244] The network device derives a second PMI based on the first PMI; the first PMI and the second PMI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first CSI and the second CSI.

[0245] In some embodiments, the terminal device sends a first PMI and a first PMI offset based on a second parameter, or based on the first reference signal resource and the second reference signal resource;

[0246] The network device derives a second PMI based on the first PMI and the first PMI offset; the first PMI and the first PMI offset are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first CSI and the second CSI.

[0247] In some embodiments, based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first CQI and a second CQI, or sends the first CQI;

[0248] The network device derives a second CQI based on the first CQI; the first CQI and the second CQI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first CSI and the second CSI.

[0249] In some embodiments, the terminal device sends a first CQI and a first CQI offset based on a second parameter, or based on the first reference signal resource and the second reference signal resource;

[0250] The network device derives a second CQI based on a first CQI and a first CQI offset; the first CQI and the first CQI offset are associated with the first reference signal resource and the second reference signal resource, respectively, or are associated with the first CSI and the second CSI, respectively.

[0251] In some embodiments, when LI is configured, based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends the first LI and the second LI, or sends the first LI without sending the second LI, or neither sends the first LI nor the second LI.

[0252] In some embodiments, the CSI report includes N CSIs, the CSI reporting configuration is at least associated with N reference signal resources used for channel measurement, the N CSIs are respectively associated with the N reference signal resources, and N is greater than or equal to 2.

[0253] In some embodiments, as shown in FIG4 , the channel state information report sending apparatus 400 may further include:

[0254] The processing unit 403 selects / decides / determines that the CSI report includes K CSIs, where the K CSIs include at least the first CSI and the second CSI, where K is greater than or equal to 2 and K is less than or equal to N.

[0255] In some embodiments, the first CSI and the third parameter of the K CSIs are included in the first part (CSI Part I) of the CSI report, and the remaining (K-1) CSIs are included in the second part (CSI Part II) of the CSI report, and the third parameter is used to indicate the feedback amount and / or bit size of the (K-1) CSIs in the second part (CSI Part II).

[0256] In some embodiments, the third parameter indicates whether the (K-1) CSI in the second part (CSI Part II) includes CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

[0257] In some embodiments, a terminal device receives a channel state information (CSI) reporting configuration; and sends a CSI report according to the channel state information (CSI) reporting configuration; wherein the CSI reporting configuration is associated with at least N reference signal resources for channel measurement, and / or the CSI report includes N channel state information (CSI), and the N CSIs are respectively associated with the N reference signal resources.

[0258] In some embodiments, the terminal device selects / decides / determines that the CSI report includes K CSIs, where K is greater than or equal to 1 and K is less than or equal to N.

[0259] In some embodiments, the first CSI and the third parameter of the K CSIs are included in the first part (CSI Part I) of the CSI report, and the remaining (K-1) CSIs are included in the second part (CSI Part II) of the CSI report, and the third parameter is used to indicate the feedback amount and / or bit size of the (K-1) CSIs in the second part (CSI Part II).

[0260] In some embodiments, the third parameter indicates whether the (K-1) CSI in the second part (CSI Part II) includes CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

[0261] 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 sending device 400 may also include other components or modules. For the specific contents of these components or modules, reference may be made to related technologies.

[0262] In addition, for the sake of simplicity, FIG4 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.

[0263] Through the embodiments of the present application, even in some scenarios of wireless communication applications (such as energy-saving mode), the terminal device can send CSI reports efficiently and accurately, and can save CSI reporting overhead and uplink resources.

[0264] Embodiments of the fourth aspect

[0265] The embodiment of the present application provides a device for receiving a channel state information report. 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 first and second aspects of the embodiment are not repeated here.

[0266] FIG5 is a schematic diagram of a device for receiving a channel state information report according to an embodiment of the present application. As shown in FIG5 , the device 500 for receiving a channel state information report includes:

[0267] A sending unit 501, which sends a channel state information (CSI) reporting configuration;

[0268] a receiving unit 502 configured to receive a channel state information (CSI) report sent by a terminal device according to the CSI reporting configuration;

[0269] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0270] 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 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.

[0271] 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.

[0272] Through the embodiments of the present application, even in some scenarios of wireless communication applications (such as energy-saving mode), the terminal device can send CSI reports efficiently and accurately, and can save CSI reporting overhead and uplink resources.

[0273] Embodiments of the fifth aspect

[0274] An embodiment of the present application also provides a communication system, and reference may be made to FIG1 . The contents that are the same as those in the first to fourth aspects of the embodiments will not be repeated.

[0275] In some embodiments, the communication system 100 may include at least:

[0276] The network device sends the channel state information (CSI) reporting configuration;

[0277] The network device receives a channel state information (CSI) report sent by the terminal device according to the CSI reporting configuration;

[0278] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0279] 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.

[0280] Figure 6 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application. As shown in Figure 6 , network device 600 may include a processor 610 (e.g., a central processing unit (CPU)) and a memory 620 ; the memory 620 is coupled to the processor 610 . The memory 620 may store various data and may also store an information processing program 630 , which is executed under the control of the processor 610 .

[0281] For example, the processor 610 may be configured to execute a program to implement the method for receiving a channel state information report as described in the embodiment of the second aspect. For example, the processor 610 may be configured to perform the following control: sending a channel state information (CSI) reporting configuration; receiving a CSI report sent by a terminal device according to the channel state information (CSI) reporting configuration;

[0282] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0283] In addition, as shown in FIG6 , network device 600 may further include: a transceiver 640 and an antenna 650, etc.; wherein, the functions of the above components are similar to those in the prior art and are not described in detail here. It is worth noting that network device 600 does not necessarily include all the components shown in FIG6 ; in addition, network device 600 may also include components not shown in FIG6 , and reference may be made to the prior art for details.

[0284] 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.

[0285] Figure 7 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 7 , terminal device 700 may include a processor 710 and a memory 720. Memory 720 stores data and programs and is coupled to processor 710. 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.

[0286] For example, the processor 710 may be configured to execute a program to implement the method for sending a channel state information report as described in the embodiment of the first aspect. For example, the processor 710 may be configured to perform the following control: receiving a channel state information (CSI) reporting configuration; sending a CSI report according to the channel state information (CSI) reporting configuration;

[0287] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0288] As shown in Figure 7 , the terminal device 700 may further include: a communication module 730, an input unit 740, a display 750, and a power supply 760. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 700 does not necessarily include all of the components shown in Figure 7 , and these components are not essential. Furthermore, the terminal device 700 may also include components not shown in Figure 7 , for which reference may be made to the prior art.

[0289] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program enables the terminal device to execute the method for sending a channel state information report as described in the embodiment of the first aspect.

[0290] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the method for sending a channel state information report as described in the embodiment of the first aspect.

[0291] An embodiment of the present application also provides a computer program, wherein when the program is executed in a network device, the program enables the network device to execute the method for receiving the channel state information report described in the embodiment of the second aspect.

[0292] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the method for receiving a channel state information report as described in the embodiment of the second aspect.

[0293] 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.

[0294] 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).

[0295] 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.

[0296] 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.

[0297] 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.

[0298] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:

[0299] 1. A method for sending a channel state information (CSI) report, comprising:

[0300] The terminal device receives the channel state information (CSI) reporting configuration;

[0301] sending a channel state information (CSI) report according to the CSI reporting configuration;

[0302] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0303] 2. The method according to Note 1, wherein the first reference signal resource is M ports, and the second reference signal resource is N ports, where N is less than M.

[0304] 3. The method according to Note 2, wherein the second reference signal resource of the N-port is part of the first reference signal resource of the M-port, or the second reference signal resource of the N-port is different from the first reference signal resource of the M-port.

[0305] 4. The method according to Note 1, wherein the channel state information (CSI) reporting configuration is per cell and / or per CC, component carrier.

[0306] 5. The method according to Supplementary Note 1, wherein the first reference signal resource and the second reference signal resource correspond to two modes / patterns for performing element adjustment on a channel measurement resource;

[0307] The elements include at least one of the following: antenna, antenna port, logical port, reference signal port, antenna factor, antenna element, antenna unit, reference signal transmission power, reference signal transmission power offset, data channel transmission power, data channel transmission power offset.

[0308] 6. A method according to any one of Notes 1 to 5, wherein the first reference signal resource or the second reference signal resource includes at least one of the following: at least one channel state information resource configuration (CSI-ResourceConfig), at least one non-zero power channel state information reference signal resource set (NZP-CSI-RS-ResourceSet), and at least one non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource).

[0309] 7. A method according to any one of Notes 1 to 6, wherein the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) supports Type I CSI with wideband granularity.

[0310] 8. The method according to Note 7, wherein the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) do not support Type I CSI with subband granularity, Type I CSI with subband granularity, and enhanced Type I CSI.

[0311] 9. A method according to any one of Notes 1 to 6, wherein the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) supports a first type of CSI (Type I CSI).

[0312] 10. The method according to Note 9, wherein the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) do not support the second type CSI and enhanced second type CSI.

[0313] 11. A method according to any one of Notes 1 to 6, wherein the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) supports CQI with wideband granularity (wideband CQI) and / or PMI with wideband granularity (wideband PMI).

[0314] 12. The method according to Note 11, wherein the CSI reporting configuration and / or the CSI report and / or the first channel state information (CSI) and / or the second channel state information (CSI) do not support CQI with subband granularity (subband CQI) and / or PMI with subband granularity (subband PMI).

[0315] 13. A method according to any one of Notes 1 to 6, wherein the CSI reporting configuration and / or the CSI report supports aperiodic CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is configured as aperiodic.

[0316] 14. The method according to Note 13, wherein the CSI reporting configuration and / or the CSI report does not support: PUCCH-based semi-persistent CSI reporting, PUSCH-based semi-persistent CSI reporting and periodic CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is not configured as: periodic (periodic) or PUCCH semi-persistent (semiPersistentOnPUCCH) or PUSCH semi-persistent (semiPersistentOnPUSCH).

[0317] 15. A method according to any one of Notes 1 to 6, wherein the CSI reporting configuration and / or the CSI report supports aperiodic CSI reporting and PUSCH-based semi-persistent CSI reporting, or the CSI reporting configuration and / or the CSI report supports PUSCH-based CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is configured as aperiodic (aperiodic) or PUSCH semi-persistent (semiPersistentOnPUSCH).

[0318] 16. The method according to Note 15, wherein the CSI reporting configuration and / or the CSI report does not support periodic CSI reporting and PUCCH-based semi-persistent CSI reporting, or the CSI reporting configuration and / or the CSI report does not support PUCCH-based CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is not configured as periodic (periodic) or PUCCH semi-persistent (semiPersistentOnPUCCH).

[0319] 17. A method according to any one of Notes 1 to 6, wherein the CSI reporting configuration and / or the CSI report supports aperiodic CSI reporting, PUSCH-based semi-persistent CSI reporting and PUCCH-based semi-persistent CSI reporting, or the CSI reporting configuration and / or the CSI report supports aperiodic CSI reporting and semi-persistent CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is configured as aperiodic or semiPersistentOnPUSCH or semiPersistentOnPUCCH.

[0320] 18. The method according to Note 17, wherein the CSI reporting configuration and / or the CSI report does not support periodic CSI reporting, or the reporting type (reportConfigType) parameter in the CSI reporting configuration is not configured as periodic.

[0321] 19. A method according to any one of Notes 1 to 6, wherein the feedback quantity (reportQuantity) parameter in the channel state information (CSI) reporting configuration includes at least one of the following: first information indicating feedback of CRI, RI, LI, PMI and CQI (cri-RI-LI-PMI-CQI), second information indicating feedback of CRI, RI, PMI and CQI (cri-RI-PMI-CQI), third information indicating feedback of CRI, RI, i1 (cri-RI-i1), fourth information indicating feedback of CRI, RI, i1 and CQI (cri-RI-i1-CQI), and fifth information indicating feedback of CRI, RI and CQI (cri-RI-CQI).

[0322] 20. A method according to any one of Notes 1 to 19, wherein the codebook type (codebookType) parameter in the channel state information (CSI) reporting configuration includes at least one of the following: a first type single panel (typeI-SinglePanel), a first type multi-panel (typeI-MultiPanel).

[0323] 21. The method according to Note 20, wherein the channel state information (CSI) reporting configuration is associated with the first reference signal resource and the second reference signal resource, and the codebook type (codebookType) is expected to be set to a first parameter, and the first parameter is a first type (typeI) and / or a first type single panel (typeI-SinglePanel) and / or a first type multi-panel (typeI-MultiPanel).

[0324] 22. A method according to any one of Notes 1 to 21, wherein the codebook configuration (codebookConfig) in the channel state information (CSI) reporting configuration is configured with a first codebook subset restriction (codebook subset restriction) and a second codebook subset restriction, wherein the first codebook subset restriction applies to a reported PMI related to the first reference signal resource, and the second codebook subset restriction applies to a reported PMI related to the second reference signal resource.

[0325] 23. A method according to any one of Notes 1 to 21, wherein the codebook configuration (codebookConfig) in the channel state information (CSI) reporting configuration is configured with a codebook subset restriction, the codebook subset restriction is applicable to the reported PMI related to the first reference signal resource, and a subset of the codebook subset restriction is applicable to the reported PMI related to the second reference signal resource.

[0326] 24. The method according to Note 22, wherein the codebook configuration (codebookConfig) in the channel state information (CSI) reporting configuration is configured with a first codebook subset restriction (codebook subset restriction) and a second codebook subset restriction, wherein the first reference signal resource corresponds to a first value of a first parameter of a codebook type, and the second reference signal resource corresponds to a second value of the first parameter of a codebook type.

[0327] 25. The method according to any one of Notes 1 to 24, wherein the channel state information (CSI) reporting configuration includes a second parameter, and the second parameter is used to indicate at least one of the following:

[0328] Whether the CSI report contains multiple CSIs;

[0329] Whether the CSI report is associated with multiple modes / patterns;

[0330] Whether the CSI report is related to network energy saving;

[0331] Whether the CSI report is associated with a first reference signal resource and a second reference signal resource used for channel measurement.

[0332] 26. The method according to any one of Notes 1 to 24, wherein the channel state information (CSI) reporting configuration includes a second parameter, and the second parameter is used to indicate at least one of the following:

[0333] The CSI report includes the number of CSIs;

[0334] The mode / pattern associated with the CSI report;

[0335] The number of modes / patterns associated with the CSI report;

[0336] a CSI feedback quantity associated with the CSI report;

[0337] Whether the CSI report is associated with the number of channel measurement reference signal resources;

[0338] When the second parameter signal resource is a part of the first reference signal resource, port indication information of the second reference signal resource.

[0339] 27. The method according to any one of Notes 1 to 26, wherein based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first CRI and a second CRI, or sends the first CRI and does not send the second CRI, or sends neither the first CRI nor the second CRI;

[0340] The first CRI and the second CRI are associated with the first reference signal resource and the second reference signal resource, respectively, or are associated with the first CSI and the second CSI, respectively.

[0341] 28. The method according to any one of Notes 1 to 26, wherein the terminal device sends a first RI and a second RI, or sends the first RI, based on a second parameter, or based on the first reference signal resource and the second reference signal resource;

[0342] The first RI and the second RI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first CSI and the second CSI.

[0343] 29. The method according to any one of Notes 1 to 26, wherein the terminal device sends the first PMI and the second PMI, or sends the first PMI, based on a second parameter, or based on the first reference signal resource and the second reference signal resource;

[0344] The network device derives a second PMI based on the first PMI; the first PMI and the second PMI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first CSI and the second CSI.

[0345] 30. The method according to any one of Notes 1 to 26, wherein the terminal device sends the first PMI and the first PMI offset based on a second parameter, or based on the first reference signal resource and the second reference signal resource;

[0346] The network device derives a second PMI based on the first PMI and the first PMI offset; the first PMI and the first PMI offset are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first CSI and the second CSI.

[0347] 31. The method according to any one of Notes 1 to 26, wherein the terminal device sends a first CQI and a second CQI, or sends the first CQI, based on a second parameter, or based on the first reference signal resource and the second reference signal resource;

[0348] The network device derives a second CQI based on the first CQI; the first CQI and the second CQI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first CSI and the second CSI.

[0349] 32. The method according to any one of Notes 1 to 26, wherein the terminal device sends a first CQI and a first CQI offset based on a second parameter, or based on the first reference signal resource and the second reference signal resource;

[0350] The network device derives a second CQI based on a first CQI and a first CQI offset; the first CQI and the first CQI offset are associated with the first reference signal resource and the second reference signal resource, respectively, or are associated with the first CSI and the second CSI, respectively.

[0351] 33. A method according to any one of Notes 27 to 32, wherein, when LI is configured, based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends the first LI and the second LI, or sends the first LI without sending the second LI, or neither sends the first LI nor the second LI.

[0352] 34. A method according to any one of Notes 1 to 33, wherein the CSI report includes N CSIs, the CSI reporting configuration is at least associated with N reference signal resources used for channel measurement, the N CSIs are respectively associated with the N reference signal resources, and N is greater than or equal to 2.

[0353] 35. The method according to Supplementary Note 34, further comprising:

[0354] The terminal device selects / decides / determines that the CSI report includes K CSIs, where the K CSIs include at least the first CSI and the second CSI, K is greater than or equal to 2, and K is less than or equal to N.

[0355] 36. A method according to Note 35, wherein the first CSI and the third parameter of the K CSIs are included in the first part (CSI Part I) of the CSI report, and the remaining (K-1) CSIs are included in the second part (CSI Part II) of the CSI report, and the third parameter is used to indicate the feedback amount and / or bit size of the (K-1) CSIs in the second part (CSI Part II).

[0356] 37. A method according to Note 36, wherein the third parameter indicates whether the (K-1) CSI in the second part (CSI Part II) includes CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

[0357] 38. A method for sending a channel state information (CSI) report, comprising:

[0358] The terminal device receives the channel state information (CSI) reporting configuration;

[0359] sending a channel state information (CSI) report according to the CSI reporting configuration;

[0360] The CSI reporting configuration is at least associated with N reference signal resources used for channel measurement, and / or the CSI report includes N channel state information (CSI), and the N CSIs are respectively associated with the N reference signal resources.

[0361] 39. The method according to Supplementary Note 38, wherein the method further comprises:

[0362] The terminal device selects / decides / determines that the CSI report includes K CSIs, where K is greater than or equal to 1 and K is less than or equal to N.

[0363] 40. A method according to Note 39, wherein the first CSI and the third parameter of the K CSIs are included in the first part (CSI Part I) of the CSI report, and the remaining (K-1) CSIs are included in the second part (CSI Part II) of the CSI report, and the third parameter is used to indicate the feedback amount and / or bit size of the (K-1) CSIs in the second part (CSI Part II).

[0364] 41. A method according to Note 40, wherein the third parameter indicates whether the (K-1) CSI in the second part (CSI Part II) includes CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

[0365] 42. A method for receiving a channel state information (CSI) report, comprising:

[0366] The network device sends the channel state information (CSI) reporting configuration;

[0367] The network device receives a channel state information (CSI) report sent by the terminal device according to the CSI reporting configuration;

[0368] The CSI reporting configuration is at least associated with a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least first channel state information (CSI) and second channel state information (CSI), the first channel state information (CSI) is associated with the first reference signal resource for channel measurement, and the second channel state information (CSI) is associated with the second reference signal resource for channel measurement.

[0369] 43. A terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method for sending a channel state information report as described in any one of Notes 1 to 41.

[0370] 44. A network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method for receiving a channel state information report as described in Note 42.

Claims

1. A device for sending a channel state information report, the device include: A receiving unit configured to receive channel state information reporting; A sending unit, configured to send a channel state information report according to the channel state information reporting configuration; The channel state information reporting configuration is at least associated with a first reference signal resource and a second reference signal resource used for channel measurement, and / or the channel state information report includes at least first channel state information and second channel state information, the first channel state information is associated with the first reference signal resource used for channel measurement, and the second channel state information is associated with the second reference signal resource used for channel measurement.

2. The device according to claim 1, in, The first reference signal resource is M ports, and the second reference signal resource is N ports, where N is less than M; The second reference signal resource of the N port is a part of the first reference signal resource of the M port, or the second reference signal resource of the N port is different from the first reference signal resource of the M port.

3. The device according to claim 1, in, The first reference signal resource or the second reference signal resource is at least one of the following: at least one channel state information resource configuration, at least one non-zero power channel state information reference signal resource set, and at least one non-zero power channel state information reference signal resource.

4. The device according to claim 1, in, The channel state information reporting configuration and / or the channel state information report and / or the first channel state information and / or the second channel state information supports a first type of channel state information with broadband granularity; The channel state information reporting configuration and / or the channel state information report and / or the first channel state information and / or the second channel state information do not support the first type channel state information and the second type channel state information with sub-band granularity and enhanced second type channel state information.

5. The device according to claim 1, in, The channel state information reporting configuration and / or the channel state information report and / or the first channel state information and / or the second channel state information supports a first type of channel state information; The channel state information reporting configuration and / or the channel state information report and / or the first channel state information and / or the second channel state information do not support the second type channel state information and enhanced second type channel state information.

6. The device according to claim 1, in, The channel state information reporting configuration and / or the channel state information report and / or the first channel state information and / or the second channel state information supports CQI with wideband granularity and / or PMI with wideband granularity; The channel state information reporting configuration and / or the channel state information report and / or the first channel state information and / or the second channel state information do not support CQI with sub-band granularity and / or PMI with sub-band granularity.

7. The device according to claim 1, in, The channel state information reporting configuration and / or the channel state information report supports aperiodic channel state information reporting, or a reporting type parameter in the channel state information reporting configuration is configured as aperiodic; The channel state information reporting configuration and / or the channel state information report does not support: PUCCH-based semi-continuous channel state information reporting, PUSCH-based semi-continuous channel state information reporting, and periodic channel state information reporting, or the reporting type parameter in the channel state information reporting configuration is not configured as: periodic or PUCCH semi-continuous or PUSCH semi-continuous.

8. The device according to claim 1, in, The channel state information reporting configuration and / or the channel state information report supports aperiodic channel state information reporting and PUSCH-based semi-persistent channel state information reporting, or the channel state information reporting configuration and / or the channel state information report supports PUSCH-based channel state information reporting, or the reporting type parameter in the channel state information reporting configuration is configured as aperiodic or PUSCH semi-persistent; The channel state information reporting configuration and / or the channel state information report does not support periodic channel state information reporting and PUCCH-based semi-persistent channel state information reporting, or the channel state information reporting configuration and / or the channel state information report does not support PUCCH-based channel state information reporting, or the reporting type parameter in the channel state information reporting configuration is not configured as periodic or PUCCH semi-persistent.

9. The device according to claim 1, in, The channel state information reporting configuration and / or the channel state information report supports aperiodic channel state information reporting, semi-persistent channel state information reporting based on PUSCH, and semi-persistent channel state information reporting based on PUCCH, or the channel state information reporting configuration and / or the channel state information report supports aperiodic channel state information reporting and semi-persistent channel state information reporting, or the reporting type parameter in the channel state information reporting configuration is configured as aperiodic or PUSCH semi-persistent or PUCCH semi-persistent; The channel state information reporting configuration and / or the channel state information report does not support periodic channel state information reporting, or a reporting type parameter in the channel state information reporting configuration is not configured as periodic.

10. The device according to claim 1, in, The feedback amount parameter in the channel state information reporting configuration includes at least one of the following: first information indicating feedback of CRI, RI, LI, PMI and CQI, second information indicating feedback of CRI, RI, PMI and CQI, third information indicating feedback of CRI, RI, i1, fourth information indicating feedback of CRI, RI, i1 and CQI, and fifth information indicating feedback of CRI, RI and CQI.

11. The device according to claim 1, in, The codebook type parameter in the channel state information reporting configuration includes at least one of the following: a first type single panel, a first type multi-panel; The channel state information reporting configuration is associated with the first reference signal resource and the second reference signal resource, and the codebook type is expected to be set to a first parameter, which is a first type and / or a first type single panel and / or a first type multi-panel.

12. The device according to claim 1, in, The codebook configuration in the channel state information reporting configuration is configured with a first codebook subset restriction and a second codebook subset restriction, wherein the first codebook subset restriction is applicable to a report PMI related to the first reference signal resource, and the second codebook subset restriction is applicable to a report PMI related to the second reference signal resource; or The codebook configuration in the channel state information reporting configuration is configured with a codebook subset restriction, the codebook subset restriction is applicable to the report PMI associated with the first reference signal resource, and a subset of the codebook subset restriction is applicable to the report PMI associated with the second reference signal resource; The codebook configuration in the channel state information reporting configuration is configured with a first codebook subset restriction and a second codebook subset restriction, wherein the first reference signal resource corresponds to a first value of a first parameter of a codebook type, and the second reference signal resource corresponds to a second value of the first parameter of a codebook type.

13. The device according to claim 1, in, The channel state information reporting configuration includes a second parameter, where the second parameter is used to indicate at least one of the following: Whether the channel state information report includes multiple channel state information; Whether the channel state information report is associated with multiple modes / patterns; Whether the channel state information report is related to network energy saving; Whether the channel state information report is associated with a first reference signal resource and a second reference signal resource used for channel measurement; or The second parameter is used to indicate at least one of the following: The channel state information report includes the number of channel state information; The mode / pattern associated with the channel state information report; The number of modes / patterns associated with the channel state information report; A channel state information feedback amount associated with the channel state information report; Whether the channel state information report is associated with the number of channel measurement reference signal resources; When the second parameter signal resource is a part of the first reference signal resource, port indication information of the second reference signal resource.

14. The device according to claim 1, in, Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends the first CRI and the second CRI, or sends the first CRI without sending the second CRI, or neither sends the first CRI nor the second CRI; the first CRI and the second CRI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first channel state information and the second channel state information; or Based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first RI and a second RI, or sends the first RI; The first RI and the second RI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first channel state information and the second channel state information; or Based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first PMI and a second PMI, or sends the first PMI; the network device derives the second PMI based on the first PMI; the first PMI and the second PMI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first channel state information and the second channel state information; or Based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first PMI and a first PMI offset; the network device derives a second PMI based on the first PMI and the first PMI offset; the first PMI and the first PMI offset are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first channel state information and the second channel state information; or Based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the The terminal device sends a first CQI and a second CQI, or sends the first CQI; the network device derives the second CQI based on the first CQI; the first CQI and the second CQI are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first channel state information and the second channel state information; or Based on a second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends a first CQI and a first CQI offset; the network device derives a second CQI based on the first CQI and the first CQI offset; the first CQI and the first CQI offset are respectively associated with the first reference signal resource and the second reference signal resource, or are respectively associated with the first channel state information and the second channel state information; In which, when LI is configured, based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device sends the first LI and the second LI, or sends the first LI but not the second LI, or neither sends the first LI nor the second LI.

15. The device according to claim 1, in, The channel state information report includes N channel state information, the channel state information reporting configuration is at least associated with N reference signal resources used for channel measurement, the N channel state information are respectively associated with the N reference signal resources, and N is greater than or equal to 2.

16. The device according to claim 15, in, The device also includes: A processing unit selects / decides / determines that the channel state information report contains K channel state information, wherein the K channel state information at least includes the first channel state information and the second channel state information, K is greater than or equal to 2, and K is less than or equal to N.

17. The device according to claim 16, in, The first channel state information and a third parameter among the K channel state information are included in the first part of the channel state information report, and the remaining (K-1) channel state information are included in the second part of the channel state information report, and the third parameter is used to indicate the feedback amount and / or bit size of the (K-1) channel state information in the second part.

18. The device according to claim 17, in, The third parameter indicates whether the (K-1) channel state information in the second part includes CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

19. A device for receiving a channel state information report, the device include: A sending unit, which sends a channel state information reporting configuration; A receiving unit, which receives the channel state information sent by the terminal device according to the channel state information reporting configuration Report; The channel state information reporting configuration is at least associated with a first reference signal resource and a second reference signal resource used for channel measurement, and / or the channel state information report includes at least first channel state information and second channel state information, the first channel state information is associated with the first reference signal resource used for channel measurement, and the second channel state information is associated with the second reference signal resource used for channel measurement.

20. A communication system, include: A network device that sends a channel state information reporting configuration and receives a channel state information report; A terminal device, which sends the channel state information report according to the channel state information reporting configuration; The channel state information reporting configuration is at least associated with a first reference signal resource and a second reference signal resource used for channel measurement, and / or the channel state information report includes at least first channel state information and second channel state information, the first channel state information is associated with the first reference signal resource used for channel measurement, and the second channel state information is associated with the second reference signal resource used for channel measurement.

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