Method and apparatus for transmitting and receiving channel status information reports

Abstract

Embodiments of the present invention provide a method and apparatus for transmitting and receiving channel status information reports. The method includes the steps of a terminal device receiving a channel status information (CSI) report configuration and transmitting a CSI report based on the channel status information report configuration, wherein the CSI report configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement and the second channel status information (CSI) relates to a second reference signal resource for channel measurement.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of communication technologies.

Background Art

[0002] As an important component of the world's new infrastructure construction, the fifth-generation (5G) communication network has witnessed rapid development worldwide in recent years. With the construction of 5G, the Active Antenna Unit (AAU) has been widely commercialized. Compared with the Remote Radio Unit (RRU) mainly used in 3G and 4G, the power consumption of AAU is high, so the energy consumption of 5G equipment will also double.

[0003] 5G defines three major service types: Enhanced Mobile Broadband (eMBB), massive Machine Type of Communication (mMTC), and Ultra Reliable Low Latency Communication (URLLC). As a result, the bursty services of 5G packets continue to increase, and the base station operates 24 hours without rest. The average daily energy consumption of 5G sites has become more than twice that of 4G.

[0004] In addition, the 3GPP (registered trademark) has introduced important technologies such as Massive MIMO and a wider radio frequency band in the 5G era. 5G supports higher data rates and larger data traffic, requiring more transmission bandwidth. The deployment of high-frequency bands will be the main frequency bands for the future expansion of 5G. On the other hand, the transmission characteristics of high-frequency bands limit the communication range of sites, so the deployment of 5G sites becomes concentrated, and the increase in site power consumption poses great operating cost pressure on operators.

[0005] As the scale of a network grows, the energy consumption of operators continues to increase. For example, data released by China's Ministry of Industry and Information Technology indicates that energy consumption in 2022 is projected to increase by approximately 80% compared to 2015. Therefore, network energy conservation is of crucial importance for reducing operating costs, and 5G network energy conservation is an issue that needs to be addressed urgently.

[0006] To achieve energy savings, network devices can perform energy-saving processes in the time domain, frequency domain, spatial domain, and / or energy domain, respectively, based on the network load. For example, in the spatial and energy domains, network devices can achieve energy savings by turning off some antennas when the load is low, and in the time domain, network devices may implement cell-level discontinuous transmission / reception techniques so that the network device does not transmit and / or receive signals during certain periods of inactivity, in order to achieve energy savings.

[0007] Furthermore, the above explanation of the background art is merely intended to provide a clearer and more complete explanation of the present invention's structure and to facilitate understanding for those skilled in the art. These structures, as described in the background art section of the present invention, should not be construed as being well-known to those skilled in the art. [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] However, the inventors of this invention have discovered that several scenarios in wireless communication applications (e.g., energy-saving modes) can have adverse effects. For example, if a network device dynamically adjusts the number of antennas or the transmit power, changes may occur in the corresponding channels, potentially leading to inaccurate or timely reporting of Channel State Information (CSI) from terminal devices, ultimately affecting transmission performance. How terminal devices report CSI is one of the important issues that currently needs to be addressed.

[0009] In view of at least one of the above-mentioned problems, an embodiment of the present invention provides a method and apparatus for transmitting and receiving channel status information reports. [Means for solving the problem]

[0010] One embodiment of the present invention provides a method for transmitting a channel status information (CSI) report, comprising the steps of: a terminal device receiving a channel status information (CSI) report configuration; and transmitting a CSI report based on the channel status information (CSI) report configuration, wherein the CSI report configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report comprises at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement, and the second channel status information (CSI) relates to a second reference signal resource for channel measurement.

[0011] Another embodiment of the present invention provides a channel status information (CSI) report transmitting device, comprising: a receiving unit that receives a channel status information (CSI) report configuration; and a transmitting unit that transmits a CSI report based on the channel status information (CSI) report configuration, wherein the CSI report configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report comprises at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement, and the second channel status information (CSI) relates to a second reference signal resource for channel measurement.

[0012] Another embodiment of the present invention provides a method for receiving a channel status information (CSI) report, comprising the steps of: a network device transmitting a channel status information (CSI) report configuration; and the network device receiving a CSI report transmitted by a terminal device based on the channel status information (CSI) report configuration, wherein the CSI report configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report comprises at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement, and the second channel status information (CSI) relates to a second reference signal resource for channel measurement.

[0013] Another embodiment of the present invention provides a receiving device for a channel status information (CSI) report, comprising: a transmitting unit that transmits a channel status information (CSI) report configuration; and a receiving unit that receives a CSI report transmitted by a terminal device based on the channel status information (CSI) report configuration, wherein the CSI report configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report comprises at least a first channel status information (CSI) and a second channel status information (CSI), the first channel status information (CSI) relating to a first reference signal resource for channel measurement, and the second channel status information (CSI) relating to a second reference signal resource for channel measurement.

[0014] Another embodiment of the present invention provides a communication system comprising: a network device that transmits a channel status information (CSI) reporting configuration and receives a CSI report; and a terminal device that transmits the CSI report based on the channel status information (CSI) reporting configuration, wherein the CSI reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement, and the second channel status information (CSI) relates to a second reference signal resource for channel measurement.

[0015] One of the advantageous effects of the embodiments of the present invention is as follows: The CSI reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI). This allows terminal devices to efficiently and accurately transmit CSI reports even in some scenarios of wireless communication applications (e.g., energy-saving mode), reducing the overhead of CSI reporting and saving uplink resources.

[0016] As shown in the following description and drawings, specific embodiments of the present invention are disclosed in detail, illustrating methods in which the principles of the present invention can be employed. However, the scope of embodiments of the present invention is not limited to these. Embodiments of the present invention include modified, altered, and equivalent forms within the scope of the gist and items of the appended claims.

[0017] Features described and / or shown in one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in other embodiments, or may replace features in other embodiments.

[0018] In this text, the terms "includes / have" mean the presence of a feature, component, step, or constituent element, and do not exclude the presence or addition of one or more other features, components, steps, or constituent elements. [Brief explanation of the drawing]

[0019] Elements and features described in one drawing and one embodiment of the embodiments of the present invention may be combined with elements and features shown in one or more drawings or embodiments. In addition, similar reference numerals in the drawings may indicate corresponding elements in multiple drawings, and may indicate corresponding elements used in one or more embodiments. [Figure 1] This is a schematic diagram of a communication system according to an embodiment of the present invention. [Figure 2] This is a schematic diagram of an example of a method for transmitting channel status information reports according to an embodiment of the present invention. [Figure 3] This is a schematic diagram of an example of a method for receiving channel status information reports according to an embodiment of the present invention. [Figure 4] This is a schematic diagram of an example of a channel status information report transmission device according to an embodiment of the present invention. [Figure 5] This is a schematic diagram of an example of a receiving device for channel status information reports according to an embodiment of the present invention. [Figure 6] This is a schematic diagram of an example of a network device according to an embodiment of the present invention. [Figure 7] This is a schematic diagram of an example of a terminal device according to an embodiment of the present invention. [Modes for carrying out the invention]

[0020] The above and other features of the present invention will become apparent from the following description. In the specification and drawings, specific embodiments of the present invention are disclosed in detail, and some embodiments in which the principles of the present invention can be adopted are shown. It should be noted that the present invention is not limited to the described embodiments. The present invention includes all modified, deformed, and equivalent ones within the scope of the appended claims. The following describes each embodiment of the present invention with reference to the drawings. These embodiments are merely illustrative and do not limit the present invention.

[0021] In the embodiments of the present invention, terms such as "first" and "second" are used to distinguish different elements in the title, but do not represent the spatial arrangement or temporal order of these elements, etc., and these elements are not limited by these terms. The term "and / or" includes any one and all combinations of one or more of the terms listed in the relevant list. Terms such as "include", "comprise", "have", etc. mean the presence of the listed features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.

[0022] In the embodiments of the present invention, the singular forms "one", "the", etc. include the plural form and should be understood broadly as "one kind" or "one category", and are not limited to "one". Also, the term "the foregoing" should be understood to include both the singular and plural forms unless the context clearly indicates otherwise. Also, unless the context clearly indicates otherwise, the term "described in" should be understood as "at least partially described in", and the term "based on" should be understood as "at least partially based on".

[0023] In embodiments of the present invention, the terms "communication network" or "wireless communication network" may mean a network conforming to any communication standard such as Long Term Evolution (LTE), Advanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA®), or High-Speed ​​Packet Access (HSPA).

[0024] Furthermore, communication between devices in a communication system may be carried out according to any stage of communication protocol, which may include, but is not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G, New Radio (NR), future 6G, and / or other currently known communication protocols or other communication protocols to be developed in the future.

[0025] In embodiments of the present invention, the term "network device" means, for example, a device within a communication system that allows a terminal device to access the communication system and provides services to said terminal device. A network device may include, but is not limited to, a 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.

[0026] Here, a base station may include, but is not limited to, a node B (NodeB or NB), an evolutionary node B (eNodeB or eNB), a 5G base station (gNB), an IAB donor, as well as a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (e.g., femto, pico). The term “base station” may also include some or all of their functions, and each base station may provide communication coverage to a specific geographic area. The term “cell” may mean a base station and / or its coverage area, depending on the context in which the term is used.

[0027] In embodiments of the present invention, the terms "User Equipment" (UE) or "Terminal Equipment" (TE) refer to equipment that accesses a communication network and receives network services, for example, via a network device. Terminal equipment may be fixed or mobile and may be referred to as a mobile station (MS), terminal, subscriber station (SS), access terminal (AT), station, etc.

[0028] Here, terminal devices may include, but are not limited to, mobile phones (cellular phones), personal digital assistants (PDAs), radio modulators / demodulators, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smartwatches, digital cameras, and the like.

[0029] Furthermore, in scenarios such as the Internet of Things (IoT), the user device may be a monitoring or measurement device or apparatus, and may include, but is not limited to, machine-type communication (MTC) terminals, in-vehicle communication terminals, industrial wireless devices, surveillance cameras, device-to-device (D2D) terminals, and machine-to-machine (M2M) terminals.

[0030] Furthermore, the terms “Network side” or “Network device side” mean the side of the network, which may be a base station or include one or more of the above-mentioned network devices. The terms “User side” or “Terminal side” or “Terminal device side” mean the side of the user or terminal, which may be a UE or include one or more of the above-mentioned terminal devices. In this specification, unless otherwise specified, “device” may mean network device or terminal device.

[0031] The following describes a scenario of an embodiment of the present invention with reference to an example, but the present invention is not limited thereto.

[0032] Figure 1 is a schematic diagram of a communication system according to an embodiment of the present invention, schematically showing examples of terminal devices and network devices. As shown in Figure 1, the communication system 100 may include a network device 101 and terminal devices 102 and 103. For the sake of explanation, Figure 1 is described using two terminal devices and one network device as an example, but embodiments of the present invention are not limited thereto.

[0033] In embodiments of the present invention, existing services or services that can be implemented in the future can be provided between the network device 101 and the terminal devices 102 and 103. For example, these services include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), ultra-reliable and low-latency communication (URLLC), and related communications for terminal devices with reduced capabilities.

[0034] Although Figure 1 shows that both terminal devices 102 and 103 are located within the coverage area of ​​network device 101, the present invention is not limited to this. Neither of the two terminal devices 102 and 103 are located within the coverage area of ​​network device 101, or one terminal device 102 may be located within the coverage area of ​​network device 101 and the other terminal device 103 may be located outside the coverage area of ​​network device 101.

[0035] In embodiments of the present invention, the upper-layer signaling may be, for example, a radio resource control (RRC) signaling. The RRC signaling includes, for example, an RRC message, and includes, for example, a master information block (MIB), system information, a dedicated RRC message, or an RRC information element (RRC IE). Alternatively, the upper-layer signaling may be, for example, a medium access control (MAC) signaling, or may be referred to as a MAC control element (MAC CE). However, the present invention is not limited to these.

[0036] In mobile communication systems, terminal devices typically measure channel state information (CSI) based on instructions and configurations from network devices and report the measured CSI to the network devices. When scheduling terminal devices, network devices can refer to the CSI to schedule them to transmit using the appropriate transmission method with the appropriate resources. Because different terminal devices may have different physical channel conditions, using a CSI feedback mechanism allows for rational and efficient use of resources, thereby improving the overall transmission efficiency of the network.

[0037] In the NR's CSI feedback mechanism, terminal equipment measures and reports a reference signal based on the CSI configuration. The CSI may consist of a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), a Channel Measurement Reference Signal Resource Indicator (CSI-RS Resource Indicator (CRI)), a Synchronization signal / physical broadcast channel (SS / PBCH) block resource indicator (SSBRI), a Layer Indicator (LI), and a Rank Indication (RI).

[0038] In the NR's CSI reporting framework, this is done by associating CSI reports with CSI resources. CSI reports can be configured into three types: periodic CSI reports (P-CSI), which are transmitted only on the Physical Uplink Control Channel (PUCCH); semi-persistent CSI reports (SP-CSI), which are transmitted on the PUCCH or Physical Uplink Shared Channel (PUSCH); and aperiodic CSI reports (AP-CSI), which are transmitted only on the PUSCH.

[0039] The following describes CSI reporting based on PUSCH. As shown in Table 1, PUSCH-based CSI reporting supports Type I broadband or subband CSI, and Type II CSI.

[0040] [Table 1] For Type I, Type II, and Extended Type II CSIs based on PUSCH, a single CSI report consists of two parts (Part 1 and Part 2), where Part 1 of the CSI (also referred to as CSI Part 1 or Part 1) has a fixed payload size, and Part 2 of the CSI (also referred to as CSI Part 2 or Part 2) indicates the number of information bits.

[0041] For Type I CSI reporting, Part 1 may include one or more of the following: Rank indicator (RI), CSI-RS Resource Indicator (CRI), and Channel quality indicator (CQI) for the first codeword. Part 2 may include one or more of the following: Precoding matrix indicator (PMI) and CQI for the second codeword.

[0042] Regarding the reporting of Type II CSI, Part 1 includes one or more non-zero broadband amplitude indications for each layer of RI, CQI, and Type II CSI. Part 2 includes the PMI of Type II CSI.

[0043] Regarding the report on the extended Type II CSI, Part 1 includes indications of the RI, CQI, and the total number of inter-layer zero amplitude coefficients for the extended Type II CSI. Type II includes the PMI for the extended Type II CSI.

[0044] If the CSI based on the PUSCH report includes Part 1 and Part 2, the terminal device (UE) may delete parts of the contents of Part 2. The rules for deleting Part 2 may follow a priority order, where the priority order matches the CSI field mapping sequence table reported based on PUSCH.

[0045] The following describes CSI reporting based on PUCCH. PUCCH-based CSI reporting supports both Type I broadband or subband CSI and Type II CSI, as shown in Table 2 below.

[0046] [Table 2] Periodic CSI reporting based on PUCCH formats 2, 3, and 4 supports broadband Type I CSI.

[0047] Semi-persistent CSI reporting based on PUCCH format 2 supports broadband Type I CSI.

[0048] Semi-sustained CSI reporting based on PUCCH format 3 or 4 supports broadband and subband Type I CSI, as well as Type II CSI Part I.

[0049] For subband Type I CSIs reported in PUCCH format 3 or 4, the CSI load can be divided into two parts (Part 1 and Part 2). Part 1 includes the RI, CRI, and some or all of the CQIs corresponding to the first codeword, while Part 2 includes the PMI and the CQIs corresponding to the second codeword.

[0050] If a CSI report contains two parts, Part 1 and Part 2, the terminal device (UE) may omit some of the contents of Part 2, and the priority order will match the CSI field mapping sequence table reported based on PUCCH.

[0051] The inventors of this invention have discovered that, in energy-saving network scenarios, one feasible scheme to mitigate the problem of sudden channel changes caused by network devices adjusting the number of antennas is for terminal devices to simultaneously transmit multiple CSI results, each CSI result corresponding to one antenna adjustment mode or antenna configuration scheme. This allows network devices to acquire CSIs in a timely and accurate manner for data scheduling and to recommend a scheme for antenna adjustment for the network devices.

[0052] In network energy-saving scenarios, terminal devices may transmit multiple CSIs simultaneously, and these multiple CSIs may be included in the same CSI report or in different CSI reports. When multiple CSIs are included in a single CSI reporting configuration, the overhead of the CSI report becomes very large, potentially placing a significant burden on the normal transmission of terminal devices. Therefore, in network energy-saving scenarios, reducing the overhead of a single CSI report is a problem that needs to be solved. The following describes an energy-saving scenario as an example, but the present invention is not limited to this and is applicable to any scenario relating to the reporting of channel status information.

[0053] <Example 1> An embodiment of the present invention provides a method for transmitting a channel status information report, and will be described from the perspective of the terminal device. Figure 2 is a schematic diagram of an example of a method for transmitting a channel status information report according to an embodiment of the present invention. As shown in Figure 2, the method includes the following steps.

[0054] Step 201: The terminal device receives the Channel Status Information (CSI) reporting configuration.

[0055] Step 202: The terminal device transmits a CSI report based on the Channel Status Information (CSI) reporting configuration.

[0056] Here, the CSI reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement, and the second channel status information (CSI) relates to a second reference signal resource for channel measurement.

[0057] Figure 2 above merely provides a schematic representation of an embodiment of the present invention, but the present invention is not limited thereto. For example, the execution order between various steps may be appropriately adjusted, or several other steps may be added, or several steps may be removed. Those skilled in the art can make appropriate modifications based on the above description and are not limited to the description in Figure 2 above.

[0058] In some embodiments, the first reference signal resource has M ports, and the second reference signal resource has N ports, where N is less than M.

[0059] For example, the first reference signal resource may be a 32-port CSI-RS resource, and the second reference signal resource may be a 16-port CSI-RS resource. The present invention is not limited to this. Furthermore, although the present invention is described using the first and second reference signal resources as an example, the present invention is not limited to two resources or two CSIs, but may be applied to two or more cases.

[0060] Some embodiments include at least one of the following: an antenna, an antenna port, a logic port, a reference signal port, an antenna coefficient, an antenna element, an antenna unit, a reference signal transmit power, a reference signal transmit power offset, a data channel transmit power, and a data channel transmit power offset.

[0061] Different mode / patterns of element tuning correspond to different element sizes or numbers. For example, element tuning mode 1 corresponds to a configuration with 32 reference signal ports, and element tuning mode 2 corresponds to a configuration with 16 reference signal ports.

[0062] In some embodiments, the first and second reference signal resources correspond to two modes / patterns that adjust the elements relative to the channel measurement resource.

[0063] For example, a 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 resources for the corresponding channel measurement are configured with two modes corresponding to a first reference signal resource and a second reference signal resource, respectively.

[0064] In some embodiments, the second reference signal resource of N ports is part of the first reference signal resource of M ports, or the second reference signal resource of N ports is different from the first reference signal resource of M ports.

[0065] In some embodiments, the reporting configuration for channel status information (CSI) is per cell and / or per component carrier (CC).

[0066] In some embodiments, the first reference signal resource or the second reference signal resource is at least one of 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), or at least one non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource).

[0067] For example, the second reference signal resource for N ports is a part or subset of the first reference signal resource for M ports, representing that the non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource) is associated with two element tuning modes, the first reference signal resource for M ports is the non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource), and the second reference signal resource for N ports is a part or subset of the non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource), which may be indicated by a port index.

[0068] Furthermore, for example, the second reference signal resource for N ports differs from the first reference signal resource for M ports in that the Non-Zero Power Channel State Information Reference Signal Resource Set (NZP-CSI-RS-ResourceSet) is 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 for M ports corresponds to the first Non-Zero Power Channel State Information Reference Signal Resource (NZP-CSI-RS-Resource), and the second reference signal resource for N ports corresponds to the second Non-Zero Power Channel State Information Reference Signal Resource (NZP-CSI-RS-Resource). Here, the number of ports for 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.

[0069] The NR system supports including multiple NZP-CSI-RS-Resources for channel measurement in a single NZP-CSI-RS-ResourceSet, and embodiments of the present invention are similarly applicable, but are not limited thereto.

[0070] The following provides illustrative examples of limitations in CSI reporting structures.

[0071] In some embodiments, the CSI reporting configuration and / or the CSI report and / or the first channel status information (CSI) and / or the second channel status information (CSI) supports a first type of CSI with wideband granularity.

[0072] In some embodiments, the CSI reporting configuration and / or CSI report and / or first channel status information (CSI) and / or second channel status information (CSI) does not support first type CSI with subband granularity, second type CSI and extended second type CSI.

[0073] For example, in a network energy saving scenario, CSI reporting will only support Type I broadband CSI reporting / feedback, and will not support Type I subband CSI reporting / feedback, Type II CSI reporting / feedback, or extended Type II CSI reporting / feedback.

[0074] Furthermore, for example, the terminal device expects both the first CSI and the second CSI to be configured as Type I CSI with wideband granularity. Alternatively, the terminal device expects the second CSI to be configured as Type I CSI with wideband granularity.

[0075] In some embodiments, the CSI reporting configuration and / or CSI report and / or first channel status information (CSI) and / or second channel status information (CSI) supports a first type of CSI (Type I CSI).

[0076] In some embodiments, the CSI reporting configuration and / or CSI report and / or first channel status information (CSI) and / or second channel status information (CSI) does not support a second type of CSI and an extended second type of CSI.

[0077] For example, in a network energy saving scenario, CSI reporting only supports reporting / feedback for Type I CSI, including Type I broadband CSI and Type I subband CSI, and does not support reporting / feedback for Type II CSI or extended Type II CSI.

[0078] As another example, the terminal device desires that both the first and second CSIs be configured as Type I CSIs. Alternatively, the terminal device desires that the second CSI be configured as Type I CSIs.

[0079] In some embodiments, the CSI reporting configuration and / or CSI report and / or first channel status information (CSI) and / or second channel status information (CSI) supports wideband CQI and / or wideband PMI.

[0080] In some embodiments, the CSI reporting configuration and / or the CSI report and / or the first channel status information (CSI) and / or the second channel status information (CSI) do not support subband CQI and / or subband PMI.

[0081] For example, the terminal device expects both the first CSI and the second CSI to be configured such that the CQI granularity cqi-Format Indicator is configured as a wideband CQI and / or the PMI granularity pmi-Format Indicator is configured as a wideband PMI.

[0082] Furthermore, for example, the terminal device expects that the second CSI is configured such that the CQI granularity cqi-Format Indicator is configured as a wideband CQI and / or the PMI granularity pmi-Format Indicator is configured as a wideband PMI. The first CSI may be configured such that the CQI granularity cqi-Format Indicator is configured as a wideband CQI and / or the PMI granularity pmi-Format Indicator is configured as a wideband PMI, or the CQI granularity cqi-Format Indicator is configured as a subband CQI and / or the PMI granularity cqi-Format Indicator is configured as a subband PMI.

[0083] In some embodiments, the CSI reporting configuration and / or CSI report supports aperiodic CSI reporting, or the reportConfigType parameter in the CSI reporting configuration is configured aperiodic.

[0084] The CSI reporting configuration and / or CSI report does not support semi-persistent CSI reports based on PUCCH, semi-persistent CSI reports based on PUSCH, or periodic CSI reports, or the reportConfigType parameter in the reporting configuration is not configured to periodic, semi-persistent on PUCCH, or semi-persistent on PUSCH.

[0085] In some embodiments, the CSI reporting configuration and / or CSI report supports aperiodic CSI reports and semi-persistent CSI reports based on PUSCH, or the CSI reporting configuration and / or said CSI report supports PUSCH-based CSI reports, or the reportConfigType parameter in the CSI reporting configuration is configured to be aperiodic or semi-persistent on PUSCH.

[0086] The CSI reporting configuration and / or CSI report does not support periodic CSI reports and semi-persistent CSI reports based on PUCCH, or the CSI reporting configuration and / or CSI report does not support CSI reports based on PUCCH, or the reportConfigType parameter in the CSI reporting configuration is not configured to be periodic or semi-persistent on PUCCH.

[0087] In some embodiments, the CSI reporting configuration and / or CSI report supports aperiodic CSI reports, semi-persistent CSI reports based on PUSCH, and semi-persistent CSI reports based on PUCCH, or the CSI reporting configuration and / or CSI report supports aperiodic CSI reports and semi-persistent CSI reports, or the reportConfigType parameter in the CSI reporting configuration is configured to aperiodic, semi-persistentOnPUSCH, or semi-persistentOnPUCCH.

[0088] The CSI reporting configuration and / or CSI report does not support periodic CSI reporting, or the reportConfigType parameter in the CSI reporting configuration is not configured to periodic.

[0089] In some embodiments, the reportQuantity parameter in the channel status information (CSI) reporting configuration includes at least one of the following: first information (cri-RI-LI-PMI-CQI) indicating feedback CRI, RI, LI, PMI, and CQI; second information (cri-RI-PMI-CQI) indicating feedback CRI, RI, PMI, and CQI; third information (cri-RI-i1) indicating feedback CRI, RI, i1; fourth information (cri-RI-i1-CQI) indicating feedback CRI, RI, i1, and CQI; and fifth information (cri-RI-CQI) indicating feedback CRI, RI, and CQI.

[0090] For example, the terminal device expects the upper-level parameter reportQuantity to be set to at least one of the following: "cri-RI-LI-PMI-CQI", "cri-RI-PMI-CQI", "cri-RI-i1", "cri-RI-i1-CQI", or "cri-RI-CQI".

[0091] The following describes the codebook type configuration.

[0092] In some embodiments, the codebookType parameter in the channel status information (CSI) reporting configuration includes at least one of the following: typeI, typeI-SinglePanel, and typeI-MultiPanel.

[0093] For example, in a network energy saving scenario, the codebook type supports type1 configurations but not type2 configurations; that is, it supports Type I-SinglePanel and / or Type I-MultiPanel, but does not support Type II configurations or Type II PortSelection configurations.

[0094] In some embodiments, the channel status information (CSI) reporting configuration is associated with a first reference signal resource and a second reference signal resource, and the codebook type is expected to be set to a first parameter, the first parameter being a first type (typeI) and / or a first type single panel (typeI-SinglePanel) and / or a first type multi-panel (typeI-MultiPanel).

[0095] For example, the terminal device expects the higher-level parameter codebookType to be configured to include at least one of the following: "typeI", "typeI-SinglePanel", or "typeI-MultiPanel".

[0096] The following provides a more general overview of the codebook's structure.

[0097] In some embodiments, the codebookConfig in the channel status information (CSI) reporting configuration comprises a first codebook subset restriction and a second codebook subset restriction, the first codebook subset restriction applied to the reporting PMI associated with the first reference signal resource, and the second codebook subset restriction applied to the reporting PMI associated with the second reference signal resource.

[0098] For example, two Codebook subset restrictions may be configured within the CodebookConfig in CSI-ReportConfig. The first Codebook subset restriction applies to a reported PMI associated with a CSI-RS resource in mode 1, and the second Codebook subset restriction applies to a reported PMI associated with a CSI-RS resource in mode 2.

[0099] Alternatively, two Codebook subset restrictions may be configured within the CodebookConfig in CSI-ReportConfig, where 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.

[0100] In some embodiments, the codebookConfig in the channel status information (CSI) reporting configuration configures a codebook subset limit, which is applied to the reporting PMI associated with a first reference signal resource, and a subset of the codebook subset limit is applied to the reporting PMI associated with a second reference signal resource.

[0101] For example, a Codebook subset restriction may be configured in the CodebookConfig within CSI-ReportConfig, where the entire Codebook subset restriction (e.g., all bits) is applied to the reporting PMI for a CSI-RS resource in a first mode (pattern 1 / mode 1) or to the reporting PMI for a first reference signal resource, and a portion or subset of this Codebook subset restriction (e.g., some bits) is applied to the reporting PMI for a CSI-RS resource in a second mode (pattern 2 or mode 2) or to the reporting PMI for a second reference signal resource.

[0102] In some embodiments, the codebookConfig in the channel status information (CSI) reporting configuration comprises a first codebook subset restriction and a second codebook subset restriction, which may be named, for example, a first value of a first parameter of the codebook type and a second value of a first parameter of the codebook type, where 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.

[0103] For example, define the codebook parameters typeI-SinglePanel-Pattern / Mode 1 and typeI-SinglePanel-Pattern / Mode 2, where Pattern / Mode1 corresponds to the first reference signal resource, i.e., adjusts the first mode in accordance with the spatial / energy domain elements in the network energy saving scenario, and Pattern / Mode2 corresponds to the second reference signal resource, i.e., adjusts the second mode in accordance with the spatial / energy domain elements in the network energy saving scenario. typeI-SinglePanel-Pattern / Mode 1 represents a codebook type configuration associated with a first reference signal resource, i.e., it adjusts the codebook type configuration of typeI-SinglePanel in the first mode in accordance with the spatial domain / energy domain elements in the network energy saving scenario, and typeI-SinglePanel-Pattern / Mode 2 represents a codebook type configuration associated with a second reference signal resource, i.e., it adjusts the codebook type configuration of typeI-SinglePanel in the second mode in accordance with the spatial domain / energy domain elements in the network energy saving scenario.

[0104] Furthermore, for example, the codebook parameters for typeI-MultiPanel-Pattern / Mode 1 and typeI-MultiPanel-Pattern / Mode 2 are defined, where Pattern / Mode 1 corresponds to a first reference signal resource, i.e., adjusts the first mode in accordance with the spatial / energy domain elements in a network energy saving scenario, and Pattern / Mode 2 corresponds to a second reference signal resource, i.e., adjusts the second mode in accordance with the spatial / energy domain elements in a network energy saving scenario. typeI-MultiPanel-Pattern / Mode 1 indicates a codebook type configuration related to a first reference signal resource, i.e., adjusts the codebook type configuration of typeI-MultiPanel in the first mode in accordance with the spatial / energy domain elements in a network energy saving scenario, and typeI-MultiPanel-Pattern / Mode 2 indicates a codebook type configuration related to a second reference signal resource, i.e., adjusts the codebook type configuration of typeI-SinglePanel in the second mode in accordance with the spatial / energy domain elements in a network energy saving scenario.

[0105] The above Pattern / Mode is merely a general description, and the terminology is not limited to this; for example, it may also be called a group or set.

[0106] Table 3 shows an example of the newly defined codebook types.

[0107] [Table 3] In some embodiments, the Channel Status Information (CSI) reporting configuration includes a second parameter, the second parameter being: Whether the CSI report includes multiple CSIs, Whether the CSI report relates to multiple modes / patterns, Whether or not the CSI report is related to network energy saving, The CSI report indicates whether or not it relates to a first reference signal resource and a second reference signal resource for channel measurement.

[0108] For example, a second parameter is added to the CSI Report Configuration (CSI-ReportConfig). The second parameter indicates whether the current CSI report includes two or at least two CSIs, and / or whether the current CSI report is associated with two or at least two spatial domain / energy domain element tuning modes, and / or whether the current CSI report is related to network energy saving, etc.

[0109] For example, the second parameter may be a csi-ReportPattern, and its value may be ENUMERATED{enable,disable}, ENUMERATED{true}, or ENUMERATED{on,off}. If 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 that the current CSI report is associated with two or at least two spatial domain / energy domain element tuning modes, and / or that the current CSI report is associated with network energy saving, etc.

[0110] In some embodiments, the Channel Status Information (CSI) reporting configuration includes a second parameter, the second parameter being: The number of CSIs included in the CSI report, Modes / patterns related to CSI reports, The number of modes / patterns related to the CSI report. CSI feedback volume related to CSI reports, Number of reference signal resources for channel measurements, whether or not they are related to the CSI report. If the second parameter signal resource is part of the first reference signal resource, then at least one of the port instruction information of the second reference signal resource is indicated.

[0111] The above provides a general overview of the second parameter, but the present invention is not limited thereto. The second parameter may be transmitted by the network device to the terminal device via any one or any combination of RRC signaling, MAC CE, or DCI. The following describes an example of an RRC signaling configuration.

[0112] For example, a second parameter is added to the CSI Report Configuration (CSI-ReportConfig). The second parameter indicates that the current CSI report includes several CSIs, and / or that the current CSI report is associated with several spatial domain / energy domain element tuning modes, and / or that some of the CSIs in the current CSI report are related to network energy saving.

[0113] For example, the second parameter may be a csi-ReportPattern, and its value may be ENUMERATED{CSImode1,CSImode2}. If the second parameter is not configured / indicated, it indicates that the current CSI report uses prior art and that the CSI report includes one CSI. If the value of the second parameter is CSImode1, it indicates that the current CSI report includes a first CSI and a second CSI, relating to a first and second reference signal resource, and tuning the first mode and / or the second mode in relation to the spatial domain / energy domain elements, respectively, and / or that the current CSI report includes two CSIs and feedback amounts in each CSI. If the value of the second parameter is CSImode2, it indicates that the current CSI report includes the first, second, third, and fourth CSIs, is related to the first, second, third, and fourth reference signal resources, and tunes the first, second, third, and fourth modes in accordance with the spatial domain / energy domain elements, respectively, and / or that the current CSI report includes four CSIs and the feedback amount in each CSI.

[0114] The following provides a general overview of CSI feedback volume. For example, if the CSI reporting configuration (CSI-ReportConfig) includes the second parameter mentioned above, and the higher-level parameter is set to enable, on, or true, or to CSImode1 or CSImode2, the CSI will report multiple CSIs.

[0115] In some embodiments, based on a second parameter, or based on a first and second reference signal resource, the terminal device transmits a first CRI and a second CRI, or transmits a first CRI but not a second CRI, or transmits neither a first nor a second CRI. The first CRI and the second CRI are associated with a first and second reference signal resource, respectively, or with a first CSI and a second CSI, respectively.

[0116] For example, the terminal device reports the total feedback amount of the first CSI + the total feedback amount of the second CSI. For example, it reports CRI1, CRI2, RI1, RI2, CQI1, CQI2, PMI1, PMI2, LI1, LI2. Here, the first CSI includes CRI1, RI1, CQI1, PMI1, LI1, and the second CSI includes CRI2, RI2, CQI2, PMI2, LI2.

[0117] Alternatively, the terminal device reports two CRIs, two RIs, two PMIs, two CQIs, and two LIs (if configured), each associated with a first and second reference signal resource, respectively. The first reference signal resource corresponds to a first CSI, and the second reference signal resource corresponds to a second CSI.

[0118] Furthermore, for example, the terminal device reports the total feedback amount of the first CSI + the partial feedback amount of the second CSI. Omitting the CRI in the second CSI indicates that the CRI of the second CSI is the same as the CRI of the first CSI, and reporting may be omitted. The terminal device reports CRI1, RI1, RI2, CQI1, CQI2, PMI1, PMI2, LI1, and LI2. Here, the first CSI includes CRI1, RI1, CQI1, PMI1, and LI1, and the second CSI includes RI2, CQI2, PMI2, and LI2.

[0119] Alternatively, the terminal device reports one CRI, two RIs, two PMIs, two CQIs, and two LIs (if configured), with the CRI associated with the first reference signal resource, and the two RIs, two PMIs, two CQIs, and two LIs associated with the first and second reference signal resources, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0120] Furthermore, for example, the terminal device reports a portion of the feedback amount of the first CSI + a portion of the feedback amount of the second CSI. The omission of CRI in both the first and second CSI indicates that the terminal device does not need to report CRI. The terminal device reports RI1, RI2, CQI1, CQI2, PMI1, PMI2, LI1, and LI2. Here, the first CSI includes RI1, CQI1, PMI1, and LI1, and the second CSI includes RI2, CQI2, PMI2, and LI2.

[0121] Alternatively, the terminal device reports two RIs, two PMIs, two CQIs, and two LIs (if configured). The two RIs, two PMIs, two CQIs, and two LIs are associated with a first and second reference signal resource, respectively. The first reference signal resource corresponds to a first CSI, and the second reference signal resource corresponds to a second CSI.

[0122] In some embodiments, based on a second parameter, or based on a first and second reference signal resource, the terminal device transmits a first RI and a second RI, or transmits a first RI, where the first RI and the second RI are associated with the first and second reference signal resource, respectively, or with the first CSI and the second CSI, respectively.

[0123] For example, a terminal device reports the total feedback amount of the first CSI + the partial feedback amount of the second CSI. The RI values ​​of the first CSI and the second CSI are the same, and the terminal device only needs to report the RI of the first CSI, and may omit reporting the RI of the second CSI, and 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, and LI2. Here, the first CSI includes CRI1, RI1, CQI1, PMI1, and LI1, and the second CSI includes CRI2, CQI2, PMI2, and LI2.

[0124] Alternatively, the terminal device reports two CRIs, one RI, two PMIs, two CQIs, and two LIs (if configured). The RIs are associated with the first reference signal resource, and the two CRIs, two PMIs, two CQIs, and two LIs are associated with the first and second reference signal resources, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0125] In some embodiments, the terminal device transmits a first PMI and a second PMI, or transmits a first PMI, based on a second parameter or based on a first and second reference signal resource. The network device derives a second PMI based on the first PMI, and the first and second PMIs are associated with a first and second reference signal resource, respectively, or with a first CSI and the second CSI, respectively.

[0126] For example, the terminal device reports the total feedback amount of the first CSI + the partial feedback amount of the second CSI. The omission of PMI in the second CSI indicates that the PMI of the second CSI can be derived from the PMI of the first CSI, and therefore reporting is optional. The terminal device reports CRI1, CRI2, RI1, RI2, CQI1, CQI2, PMI1, LI1, and LI2. Here, the first CSI includes CRI1, RI1, CQI1, PMI1, and LI1, and the second CSI includes CRI2, RI2, CQI2, and LI2.

[0127] Alternatively, the terminal device reports two CRIs, two RIs, one PMI, two CQIs, and two LIs (if configured). The PMI is associated with the first reference signal resource, and the two RIs, two CRIs, two CQIs, and two LIs are associated with the first and second reference signal resources, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0128] In some embodiments, the terminal device transmits a first PMI and a first PMI offset based on a second parameter, or based on a first and second reference signal resource. 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 relating to a first and second reference signal resource, respectively, or relating to a first CSI and a second CSI, respectively.

[0129] For example, PMI2 of the second CSI is the offset of PMI1 of the first CSI. The terminal device reports PMI1 and PMI offset of the first CSI, and the network device can infer the PMI of the second CSI based on two parameters to save reporting bits. The terminal device reports CRI1, CRI2, RI1, RI2, CQI1, CQI2, PMI1, PMI1_offset, LI1, and LI2. The first CSI includes CRI1, RI1, CQI1, PMI1, and LI1, and the second CSI includes CRI2, RI2, CQI2, PMI1_offset, and LI2.

[0130] Alternatively, the terminal device reports two CRIs, two RIs, one PMI, one PMI offset, two CQIs, and two LIs (if configured). The PMI offset is associated with a second reference signal resource, and the two RIs, two CRIs, two CQIs, and two LIs are associated with a first and second reference signal resource, respectively. The first reference signal resource corresponds to a first CSI, and the second reference signal resource corresponds to a second CSI.

[0131] In some embodiments, based on a second parameter, or based on a first and second reference signal resource, the terminal device transmits a first CQI and a second CQI, or transmits a first CQI. The network device derives a second CQI based on the first CQI, and the first and second CQIs are associated with a first and second reference signal resource, respectively, or with a first CSI and a second CSI, respectively.

[0132] For example, the terminal device reports the total feedback amount of the first CSI + the partial feedback amount of the second CSI. The omission of the CQI in the second CSI indicates that the CQI of the second CSI can be derived from the CQI of the first CSI, and therefore reporting is optional. The terminal device reports CRI1, CRI2, RI1, RI2, CQI1, PMI1, PMI2, LI1, and LI2. Here, the first CSI includes CRI1, RI1, CQI1, PMI1, and LI1, and the second CSI includes CRI2, RI2, PMI2, and LI2.

[0133] Alternatively, the terminal device reports two CRIs, two RIs, two PMIs, one CQI, and two LIs (if configured). The CQI is associated with the first reference signal resource, and the two RIs, two CRIs, two PMIs, and two LIs are associated with the first and second reference signal resources, respectively. The first reference signal resource corresponds to the first CSI, and the second reference signal resource corresponds to the second CSI.

[0134] In some embodiments, the terminal device transmits a first CQI and a first CQI offset based on a second parameter, or based on a first and second reference signal resource. 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 relating to a first and second reference signal resource, respectively, or relating to a first CSI and a second CSI, respectively.

[0135] For example, CQI2 of the second CSI is the offset of CQI1 of the first CSI. For example, if the broadband CQI1 of the first CSI is 4 bits, the broadband CQI2 of the second CSI saves reporting bits by reporting only a 2-bit offset, i.e., the offset relative to CQI1. A network device can derive CQI2 of the second CSI based on CQI1 and CQI1_offset of the first CSI. A terminal device reports CRI1, CRI2, RI1, RI2, CQI1, CQI1_offset, PMI1, PMI2, LI1, and LI2. Here, the first CSI includes CRI1, RI1, CQI1, PMI1, and LI1, and the second CSI includes CRI2, RI2, CQI1_offset, PMI2, and LI2.

[0136] Alternatively, the terminal device reports two CRIs, two RIs, two PMIs, one CQI, one CQI offset, and two LIs (if configured). The CQI offset is associated with a second reference signal resource, and the two RIs, two CRIs, two PMIs, and two LIs are associated with a first and second reference signal resource, respectively. The first reference signal resource corresponds to a first CSI, and the second reference signal resource corresponds to a second CSI.

[0137] In some embodiments, if an LI is configured, the terminal device transmits a first LI and a second LI based on a second parameter, or based on a first reference signal resource and a second reference signal resource, or transmits a first LI and not a second LI, or does not transmit a first LI and a second LI.

[0138] The above illustrates some situations in CSI reporting, but the present invention is not limited thereto. The above methods may be implemented individually or in combination.

[0139] For example, the first CSI includes CRI1, RI1, PMI1, CQI1, and LI1, while the second CSI includes RI2, PMI1_offset, and CQI1_offset. Therefore, the CSI report includes CRI1, RI1, RI2, PMI1, PMI1_offset, CQI1, CQI1_offset, and LI1.

[0140] As another example, the first CSI includes CRI1, RI1, PMI1, CQI1, and LI1, and the second CSI includes RI2, PMI1_offset, and CQI2. Therefore, the CSI report includes CRI1, RI1, RI2, PMI1, PMI1_offset, CQI1, CQI2, LI1, etc.

[0141] The above explanation uses the first and second CSIs as examples, but the present invention is not limited thereto, and a CSI report may include two or more CSIs. The following is a general explanation of the case with N CSIs.

[0142] In some embodiments, the CSI report includes N CSIs, the CSI report configuration is associated with at least N reference signal resources for channel measurement, and each of the N CSIs is associated with N reference signal resources, where N is 2 or greater.

[0143] In some embodiments, the terminal device selects / determines / confirms K CSIs to be included in the CSI report. The K CSIs include at least a first CSI and a second CSI, where K is 2 or greater and K is 1 or less than or equal to N. Here, 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.

[0144] The third parameter indicates 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 the second part (CSI Part II) include CRI and / RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

[0145] For example, a terminal device transmits a first CSI and a second CSI, the first CSI including all CRI, RI, PMI, and CQI, and is included in CSI Part I. The second CSI is included in Part II, and whether the second CSI includes PMI or RI is determined by a third parameter.

[0146] Unlike the second CSI defined in the above embodiment, which determines whether or not to transmit RI, PMI, etc., here the terminal device decides whether or not to transmit a part of it (e.g., RI, PMI, or CQI, etc.) and indicates this using a third parameter. This further increases flexibility.

[0147] In some embodiments, the CSI reporting configuration is associated with at least N reference signal resources for channel measurement, and / or the N CSIs include N channel state information (CSIs), and each of the N CSIs is associated with N reference signal resources.

[0148] In some embodiments, the terminal device selects / determines / confirms K CSIs to be included in the CSI report. K is greater than or equal to 1 and less than or equal to N. Here, 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.

[0149] The third parameter indicates 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 the second part (CSI Part II) include CRI and / RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

[0150] The above embodiments illustrate examples of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, each of the above embodiments may be used individually, or one or more of the above embodiments may be used in combination.

[0151] According to this embodiment, even in several scenarios of wireless communication applications (e.g., energy-saving mode), terminal devices can efficiently and accurately transmit CSI reports, reducing the overhead of CSI reporting and saving uplink resources.

[0152] <Example 2> Embodiments of the present invention provide a method for receiving channel status information reports and will be described from the perspective of the network device. Embodiment 2 may be combined with Embodiment 1, and the description of the same contents as in Embodiment 1 will be omitted.

[0153] Figure 3 is a schematic diagram of an example of a method for receiving a channel status information report according to an embodiment of the present invention. As shown in Figure 3, the method includes the following steps.

[0154] Step 301: The network device sends a Channel Status Information (CSI) reporting configuration.

[0155] Step 302: The network device receives the CSI report transmitted by the terminal device based on the channel status information (CSI) reporting configuration.

[0156] Here, the CSI reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement, and the second channel status information (CSI) relates to a second reference signal resource for channel measurement.

[0157] Figure 3 above merely provides a schematic representation of an embodiment of the present invention, but the present invention is not limited thereto. For example, the execution order between various steps may be appropriately adjusted, or several other steps may be added or several steps removed. Those skilled in the art can make appropriate modifications based on the above description and are not limited to the description in Figure 3.

[0158] The above embodiments illustrate examples of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, each of the above embodiments may be used individually, or one or more of the above embodiments may be used in combination.

[0159] According to this embodiment, even in several scenarios of wireless communication applications (e.g., energy-saving mode), terminal devices can efficiently and accurately transmit CSI reports, reducing the overhead of CSI reporting and saving uplink resources.

[0160] <Example 3> Embodiments of the present invention provide a device for transmitting channel status information reports. This device may be, for example, a terminal device, or one or more components configured within a terminal device. Descriptions of aspects similar to those in Embodiment 1 are omitted.

[0161] Figure 4 is a schematic diagram of an example of a channel status information report transmission device according to an embodiment of the present invention. As shown in Figure 4, the device includes the following parts.

[0162] The receiving unit 401 receives the channel status information (CSI) report configuration.

[0163] The transmitting unit 402 transmits a CSI report based on the channel status information (CSI) reporting configuration.

[0164] Here, the CSI reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement, and the second channel status information (CSI) relates to a second reference signal resource for channel measurement.

[0165] In some embodiments, the first reference signal resource has M ports, and the second reference signal resource has N ports, where N is less than M.

[0166] In some embodiments, the second reference signal resource of N ports is part of the first reference signal resource of M ports, or the second reference signal resource of N ports is different from the first reference signal resource of M ports.

[0167] In some embodiments, the reporting configuration for channel status information (CSI) is per cell and / or per component carrier (CC).

[0168] In some embodiments, the first and second reference signal resources correspond to two modes / patterns for adjusting elements with respect to the channel measurement resource, the elements including at least one of an antenna, antenna port, logic port, reference signal port, antenna coefficient, antenna element, antenna unit, reference signal transmit power, reference signal transmit power offset, data channel transmit power, and data channel transmit power offset.

[0169] In some embodiments, the first reference signal resource or the second reference signal resource includes at least one of 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), or at least one non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource).

[0170] In some embodiments, the CSI report and / or the first channel status information (CSI) and / or the second channel status information (CSI) supports a first type of CSI with wideband granularity.

[0171] In some embodiments, the CSI reporting configuration and / or CSI report and / or first channel status information (CSI) and / or second channel status information (CSI) does not support first type CSI with subband granularity, second type CSI and extended second type CSI.

[0172] In some embodiments, the CSI reporting configuration and / or CSI report and / or first channel status information (CSI) and / or second channel status information (CSI) supports a first type of CSI (Type I CSI).

[0173] In some embodiments, the CSI reporting configuration and / or CSI report and / or first channel status information (CSI) and / or second channel status information (CSI) does not support a second type of CSI and an extended second type of CSI.

[0174] In some embodiments, the CSI reporting configuration and / or CSI report and / or first channel status information (CSI) and / or second channel status information (CSI) supports wideband CQI and / or wideband PMI.

[0175] In some embodiments, the CSI reporting configuration and / or the CSI report and / or the first channel status information (CSI) and / or the second channel status information (CSI) do not support subband CQI and / or subband PMI.

[0176] In some embodiments, the CSI reporting configuration and / or CSI report supports aperiodic CSI reporting, or the reportConfigType parameter in the CSI reporting configuration is configured aperiodic.

[0177] In some embodiments, the CSI reporting configuration and / or CSI report does not support semi-persistent CSI reports based on PUCCH, semi-persistent CSI reports based on PUSCH, or periodic CSI reports, or the reportConfigType parameter in the CSI reporting configuration is not configured to periodic, semi-persistent on PUCCH, or semi-persistent on PUSCH.

[0178] In some embodiments, the CSI reporting configuration and / or CSI report supports aperiodic CSI reports and semi-persistent CSI reports based on PUSCH, or the CSI reporting configuration and / or CSI report supports PUSCH-based CSI reports, or the reportConfigType parameter in the CSI reporting configuration is configured to be aperiodic or semi-persistent on PUSCH.

[0179] In some embodiments, the CSI reporting configuration and / or CSI report does not support periodic CSI reports and semi-persistent CSI reports based on PUCCH, or the CSI reporting configuration and / or CSI report does not support CSI reports based on PUCCH, or the reportConfigType parameter in the CSI reporting configuration is not configured to be periodic or semi-persistent on PUCCH.

[0180] In some embodiments, the CSI reporting configuration and / or CSI report supports aperiodic CSI reports, semi-persistent CSI reports based on PUSCH, and semi-persistent CSI reports based on PUCCH, or the CSI reporting configuration and / or CSI report supports aperiodic CSI reports and semi-persistent CSI reports, or the reportConfigType parameter in the CSI reporting configuration is configured to aperiodic, semi-persistentOnPUSCH, or semi-persistentOnPUCCH.

[0181] In some embodiments, the CSI reporting configuration and / or CSI report does not support periodic CSI reporting, or the reportConfigType parameter in the CSI reporting configuration is not configured to periodic.

[0182] In some embodiments, the reportQuantity parameter in the channel status information (CSI) reporting configuration includes at least one of the following: first information (cri-RI-LI-PMI-CQI) indicating feedback CRI, RI, LI, PMI, and CQI; second information (cri-RI-PMI-CQI) indicating feedback CRI, RI, PMI, and CQI; third information (cri-RI-i1) indicating feedback CRI, RI, i1; fourth information (cri-RI-i1-CQI) indicating feedback CRI, RI, i1, and CQI; and fifth information (cri-RI-CQI) indicating feedback CRI, RI, and CQI.

[0183] In some embodiments, the codebookType parameter in the channel status information (CSI) reporting configuration includes at least one of the following: typeI - SinglePanel, typeI - MultiPanel.

[0184] In some embodiments, the channel status information (CSI) reporting configuration is associated with a first reference signal resource and a second reference signal resource, and the codebook type is expected to be set to a first parameter, the first parameter being a first type (typeI) and / or a first type single panel (typeI-SinglePanel) and / or a first type multi-panel (typeI-MultiPanel).

[0185] In some embodiments, the codebookConfig in the channel status information (CSI) reporting configuration comprises a first codebook subset restriction and a second codebook subset restriction, the first codebook subset restriction applied to the reporting PMI associated with the first reference signal resource, and the second codebook subset restriction applied to the reporting PMI associated with the second reference signal resource.

[0186] In some embodiments, the codebookConfig in the channel status information (CSI) reporting configuration configures a codebook subset limit, which is applied to the reporting PMI associated with a first reference signal resource, and a subset of the codebook subset limit is applied to the reporting PMI associated with a second reference signal resource.

[0187] In some embodiments, the codebookConfig in the channel status information (CSI) reporting configuration consists of a first codebook subset restriction and a second codebook subset restriction, where the first reference signal resource corresponds to a first value of the first parameter of the codebook type, and the second reference signal resource corresponds to a second value of the first parameter of the codebook type.

[0188] In some embodiments, the Channel Status Information (CSI) reporting configuration includes a second parameter, the second parameter being: Whether the CSI report includes multiple CSIs, Whether the CSI report relates to multiple modes / patterns, Whether or not the CSI report is related to network energy saving, The CSI report indicates whether or not it relates to a first reference signal resource and a second reference signal resource for channel measurement.

[0189] In some embodiments, the Channel Status Information (CSI) reporting configuration includes a second parameter, the second parameter being: The number of CSIs included in the CSI report, Modes / patterns related to CSI reports, The number of modes / patterns related to the CSI report. CSI feedback volume related to CSI reports, Number of reference signal resources for channel measurements, whether or not they are related to the CSI report. If the second parameter signal resource is part of the first reference signal resource, then at least one of the port instruction information of the second reference signal resource is indicated.

[0190] In some embodiments, based on a second parameter, or based on a first and second reference signal resource, the terminal device transmits a first CRI and a second CRI, or transmits a first CRI and does not transmit a second CRI, or transmits a first CRI and does not transmit a 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 with the first CSI and the second CSI, respectively.

[0191] In some embodiments, based on a second parameter, or based on a first and second reference signal resource, the terminal device transmits a first RI and a second RI, or transmits a first RI. The first RI and the second RI are associated with the first reference signal resource and the second reference signal resource, respectively, or with the first CSI and the second CSI, respectively.

[0192] In some embodiments, based on a second parameter, or based on a first and second reference signal resource, the terminal device transmits a first PMI and a second PMI, or transmits a first PMI. The network device derives a second PMI based on a first PMI, and the first PMI and the second PMI are associated with a first reference signal resource and a second reference signal resource, respectively, or with a first CSI and a second CSI, respectively.

[0193] In some embodiments, based on a second parameter, or based on a first reference signal resource and a second reference signal resource, the terminal device transmits a first PMI and a first PMI offset. The network device derives a second PMI based on a first PMI and a first PMI offset, the first PMI and the first PMI offset being associated with a first reference signal resource and a second reference signal resource, respectively, or with a first CSI and a second CSI, respectively.

[0194] In some embodiments, based on a second parameter, or based on a first and second reference signal resource, the terminal device transmits a first CQI and a second CQI, or transmits a first CQI. The network device derives a second CQI based on a first CQI, and the first and second CQIs are associated with a first reference signal resource and a second reference signal resource, respectively, or with a first CSI and a second CSI, respectively.

[0195] In some embodiments, based on a second parameter, or based on a first reference signal resource and a second reference signal resource, the terminal device transmits a first CQI and a first CQI offset. 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 being associated with a first reference signal resource and a second reference signal resource, respectively, or with a first CSI and a second CSI, respectively.

[0196] In some embodiments, if an LI is configured, the terminal device transmits a first LI and a second LI based on a second parameter, or based on a first reference signal resource and a second reference signal resource, or transmits a first LI and not a second LI, or does not transmit a first LI and a second LI.

[0197] In some embodiments, the CSI report includes N CSIs, the CSI report configuration is associated with at least N reference signal resources for channel measurement, and each of the N CSIs is associated with N reference signal resources, where N is 2 or greater.

[0198] In some embodiments, as shown in Figure 4, the channel status information report transmitting device 400 further includes the following parts:

[0199] The processing unit 403 selects / determines / confirms K CSIs included in the CSI report. The K CSIs include at least the first CSI and the second CSI, K is 2 or greater, and K is N or less.

[0200] 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, the remaining (K-1) CSIs are included in the second part (CSI Part II) of the CSI report, and the third parameter indicates the feedback amount and / or bit size of the (K-1) CSIs in the second part (CSI Part II).

[0201] In some embodiments, a third parameter indicates whether the (K-1) CSIs in the second part (CSI Part II) include CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

[0202] In some embodiments, a terminal device receives a channel status information (CSI) reporting configuration and transmits a CSI report based on the channel status information (CSI) reporting configuration. Here, the CSI reporting configuration relates to at least N reference signal resources for channel measurement, and / or the N CSIs include N channel status information (CSIs), each of which relates to the N reference signal resources.

[0203] In some embodiments, the terminal device selects / determines / confirms K CSIs included in the CSI report, where K is greater than or equal to 1 and less than or equal to N.

[0204] 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, the remaining (K-1) CSIs are included in the second part (CSI Part II) of the CSI report, and the third parameter indicates the feedback amount and / or bit size of the (K-1) CSIs in the second part (CSI Part II).

[0205] In some embodiments, a third parameter indicates whether the (K-1) CSIs in the second part (CSI Part II) include CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset.

[0206] Although the above description only concerns components or modules related to the present invention, the present invention is not limited thereto. The channel status information report transmitting device 400 may further include other components or modules. For specific details of these components or modules, refer to related technologies.

[0207] Furthermore, for the sake of clarity, Figure 4 merely illustrates the connection relationships or signal directions between various components or modules, but it will be apparent to those skilled in the art that various related techniques, such as bus connections, can be used. The various components or modules described above may also be implemented by hardware devices such as processors, memory, transmitters, and receivers, and the present invention is not limited thereto.

[0208] According to this embodiment, even in several scenarios of wireless communication applications (e.g., energy-saving mode), terminal devices can efficiently and accurately transmit CSI reports, reducing the overhead of CSI reporting and saving uplink resources.

[0209] <Example 4> Embodiments of the present invention provide a device for receiving channel status information reports. This device may be, for example, a network device, or one or more components configured within a network device. Descriptions of aspects similar to those in Embodiments 1 and 2 are omitted.

[0210] Figure 5 is a schematic diagram of an example of a channel status information report receiving device according to an embodiment of the present invention. As shown in Figure 5, the channel status information report receiving device 500 includes the following parts.

[0211] The transmitting unit 501 transmits the channel status information (CSI) report configuration.

[0212] The receiving unit 502 receives the CSI report transmitted by the terminal device based on the channel status information (CSI) reporting configuration.

[0213] Here, the CSI reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement, and the second channel status information (CSI) relates to a second reference signal resource for channel measurement.

[0214] Although the above description only concerns components or modules related to the present invention, the present invention is not limited thereto. The channel status information report receiving device 500 may further include other components or modules. For specific details of these components or modules, refer to related technologies.

[0215] Furthermore, for the sake of clarity, Figure 5 merely illustrates the connection relationships or signal directions between various components or modules; however, it will be apparent to those skilled in the art that various related techniques, such as bus connections, can be used. The various components or modules described above may also be implemented by hardware devices such as processors, memory, transmitters, and receivers, and the present invention is not limited thereto.

[0216] According to this embodiment, even in several scenarios of wireless communication applications (e.g., energy-saving mode), terminal devices can efficiently and accurately transmit CSI reports, reducing the overhead of CSI reporting and saving uplink resources.

[0217] <Example 5> Embodiments of the present invention further provide a communication system, which may be described by referring to Figure 1, and the description of the same content as in Embodiments 1 to 4 will be omitted.

[0218] In some embodiments, the communication system 100 may include at least a network device and a terminal device.

[0219] Network devices send Channel Status Information (CSI) reporting configurations and receive CSI reports.

[0220] The terminal device transmits the Channel Status Information (CSI) report based on the Channel Status Information (CSI) reporting configuration.

[0221] Here, the CSI reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement, and the second channel status information (CSI) relates to a second reference signal resource for channel measurement.

[0222] Embodiments of the present invention further provide a network device, which may be, for example, a base station, but the present invention is not limited thereto and may be other network devices.

[0223] Figure 6 is a schematic diagram of an example of a network device according to an embodiment of the present invention. As shown in Figure 6, the network device 600 may include a processor 610 (e.g., a central processing unit (CPU)) and a memory 620, the memory 620 being connected to the processor 610. The memory 620 may store various types of data, and may also store an information processing program 630, which is executed under the control of the processor 610.

[0224] For example, the processor 610 may be programmed to implement the method for receiving channel status information reports described in Embodiment 2. For example, the processor 610 may be configured to perform the steps of: sending a channel status information (CSI) report configuration; and receiving a CSI report sent by a terminal device based on the channel status information (CSI) report configuration.

[0225] Here, the CSI report configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI), the first channel status information (CSI) relating to a first reference signal resource for channel measurement, and the second channel status information (CSI) relating to a second reference signal resource for channel measurement.

[0226] Furthermore, as shown in Figure 6, the network device 600 may further include a transceiver 640 and an antenna 650, etc. The functions of the above components are similar to those of the prior art, and their explanation is omitted here. Note that the network device 600 does not need to include all the units shown in Figure 6. Also, the network device 600 may further include units not shown in Figure 6, and prior art may be referenced.

[0227] The embodiments of the present invention further provide terminal devices, but the present invention is not limited thereto and may include other devices.

[0228] Figure 7 is a schematic diagram of an example of a terminal device according to an embodiment of the present invention. As shown in Figure 7, the terminal device 700 may include a processor 710 and a memory 720, the memory 720 storing data and programs and connected to the processor 710. Note that this figure is illustrative, and this structure may be supplemented or replaced with other types of structures to realize communication functions or other functions.

[0229] For example, the processor 710 may be programmed to implement the channel status information report transmission method described in Embodiment 1. For example, the processor 710 may be configured to perform the steps of receiving a channel status information (CSI) report configuration and transmitting a CSI report based on the channel status information (CSI) report configuration.

[0230] Here, the CSI report configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI), the first channel status information (CSI) relating to a first reference signal resource for channel measurement, and the second channel status information (CSI) relating to a second reference signal resource for channel measurement.

[0231] Furthermore, 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, etc. The functions of the above units are the same as in the prior art, and their explanation is omitted here. Note that the terminal device 700 does not need to include all the units shown in Figure 7. Also, the terminal device 700 may further include units not shown in Figure 7, and prior art may be referenced.

[0232] In embodiments of the present invention, a computer-readable program is provided, which, when executed on a terminal device, causes the terminal device to execute the channel status information report transmission method described in Embodiment 1.

[0233] Embodiments of the present invention further provide a storage medium in which a computer-readable program is stored, and which, when the program is executed, causes a terminal device to execute the channel status information report transmission method described in Embodiment 1.

[0234] In embodiments of the present invention, a computer-readable program is further provided that, when the program is executed on a network device, causes the network device to execute the method for receiving channel status information reports described in Embodiment 2.

[0235] Embodiments of the present invention further provide a storage medium in which a computer-readable program is stored, and which, when the program is executed, causes a network device to execute the channel status information report receiving method described in Embodiment 2.

[0236] The above-described apparatus and method of the present invention may be implemented by hardware, or by combining hardware and software. The present invention relates to a computer-readable program, and when the program is executed by a logic unit, the logic unit may implement the above-described apparatus or configuration requirements, or the logic unit may implement the above-described methods or steps. The present invention relates to a storage medium for storing the above-described program, such as a hard disk, magnetic disk, optical disk, DVD, flash memory, etc.

[0237] Each processing method in each apparatus described with reference to embodiments of the present invention may be implemented using hardware, software modules executed by a processor, or a combination of both. For example, one or more functional block diagrams shown in the drawings, or one or more combinations of functional block diagrams, may correspond to each software module in the computer program flow, or to each hardware module. These software modules may correspond to each step shown in the drawings. These hardware modules may be implemented by hardwareizing these software modules, for example, using a field-programmable gate array (FPGA).

[0238] The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, mobile hard disk, CD-ROM, or any other form of storage medium known to those skilled in the art. The storage medium may be connected to the processor so that the processor can read information from or write information to the storage medium, or the storage medium may be a component of the processor. The processor and the storage medium may reside in an ASIC. The software module may be stored in the memory of the mobile terminal or on a memory card inserted into the mobile terminal. For example, if the device (e.g., a mobile terminal) uses a relatively large capacity MEGA-SIM card or a high-capacity flash memory device, the software module may be stored on the MEGA-SIM card or high-capacity flash memory device.

[0239] One or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams shown in the drawings may be implemented by 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 unit, a discrete hardware component, or any suitable combination thereof for performing the functions described herein. One or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams shown in the drawings may be implemented, for example, by a combination of computing equipment, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, one or more microprocessors combined with DSP communication, or any other configuration.

[0240] Although the present invention has been described above with reference to specific embodiments, the above description is merely illustrative and does not limit the scope of protection of the present invention. Various modifications and changes can be made to the present invention as long as they do not deviate from the spirit and principles of the present invention, and these modifications and changes are also within the scope of the present invention.

[0241] Furthermore, the following additional information is disclosed regarding embodiments including the above-described examples. (Note 1) A method for sending Channel Status Information (CSI) reports, The terminal device receives a channel status information (CSI) reporting configuration, The steps include sending a CSI report based on the Channel Status Information (CSI) reporting configuration, The CSI reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the CSI report includes at least a first channel status information (CSI) and a second channel status information (CSI), wherein the first channel status information (CSI) relates to a first reference signal resource for channel measurement, and the second channel status information (CSI) relates to a second reference signal resource for channel measurement, in a method. (Note 2) The method according to Appendix 1, wherein the first reference signal resource has M ports, and the second reference signal resource has N ports, where N is less than M. (Note 3) The method according to Appendix 2, wherein the second reference signal resources of the N ports are part of the first reference signal resources of the M ports, or the second reference signal resources of the N ports are different from the first reference signal resources of the M ports. (Note 4) The reporting configuration of the channel status information (CSI) is per cell and / or per component carrier (CC, component carrier), as described in Appendix 1. (Note 5) The first and second reference signal resources correspond to two modes / patterns that adjust the elements with respect to the channel measurement resource. The method according to Appendix 1, wherein the element includes at least one of the following: an antenna, an antenna port, a logic port, a reference signal port, an antenna coefficient, an antenna element, an antenna unit, a reference signal transmission power, a reference signal transmission power offset, a data channel transmission power, and a data channel transmission power offset. (Note 6) The first reference signal resource or the second reference signal resource includes at least one of 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), or at least one non-zero power channel state information reference signal resource (NZP-CSI-RS-Resource), as described in any of Appendix 1 to 5. (Note 7) The CSI report and / or the first channel status information (CSI) and / or the second channel status information (CSI) are the method according to any one of the appendices 1 to 6, wherein the CSI report and / or the first channel status information (CSI) and / or the second channel status information (CSI) support a first type of CSI with wideband granularity. (Note 8) The method according to Appendix 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) does not support a first type of CSI with subband granularity, a second type of CSI, and an extended second type of CSI. (Note 9) The CSI reporting configuration and / or the CSI report and / or the first channel status information (CSI) and / or the second channel status information (CSI) are methods according to any one of the appendices 1 to 6, supporting a first type of CSI (Type I CSI). (Note 10) The method described in Appendix 9, wherein the CSI reporting configuration and / or the CSI report and / or the first channel status information (CSI) and / or the second channel status information (CSI) does not support a second type of CSI and an extended second type of CSI. (Note 11) The CSI reporting configuration and / or the CSI report and / or the first channel status information (CSI) and / or the second channel status information (CSI) are configured according to any one of the methods described in Appendix 1 to 6, supporting wideband CQI and / or wideband PMI. (Note 12) The method described in Appendix 11, wherein the CSI reporting configuration and / or the CSI report and / or the first channel status information (CSI) and / or the second channel status information (CSI) does not support subband CQI and / or subband PMI. (Note 13) The CSI reporting configuration and / or the CSI report supports aperiodic CSI reporting, or the reportConfigType parameter in the CSI reporting configuration is configured aperiodic, as described in any of Appendices 1 to 6. (Note 14) The method described in Appendix 13, wherein the CSI reporting configuration and / or the CSI report does not support semi-persistent CSI reports based on PUCCH, semi-persistent CSI reports based on PUSCH, or periodic CSI reports, or the reportConfigType parameter in the CSI reporting configuration is not configured to be periodic, semi-persistent on PUCCH, or semi-persistent on PUSCH. (Note 15) The method according to any one of the appendices 1 to 6, wherein the CSI reporting configuration and / or the CSI report supports aperiodic CSI reports and semi-persistent CSI reports based on PUSCH, or the CSI reporting configuration and / or the CSI report supports CSI reports based on PUSCH, or the reportConfigType parameter in the CSI reporting configuration is configured to be aperiodic or semi-persistent on PUSCH. (Note 16) The method according to Appendix 15, wherein the CSI reporting configuration and / or the CSI report does not support periodic CSI reports and semi-persistent CSI reports based on PUCCH, or the CSI reporting configuration and / or the CSI report does not support CSI reports based on PUCCH, or the reportConfigType parameter in the CSI reporting configuration is not configured to be periodic or semi-persistent on PUCCH. (Note 17) The method according to any one of the appendices 1 to 6, wherein the CSI reporting configuration and / or the CSI report supports aperiodic CSI reports, semi-persistent CSI reports based on PUSCH and semi-persistent CSI reports based on PUCCH, or the CSI reporting configuration and / or the CSI report supports aperiodic CSI reports and semi-persistent CSI reports, or the method according to any one of the appendices 1 to 6, wherein the report type (reportConfigType) parameter in the CSI reporting configuration is configured to aperiodic, semi-PersistentOnPUSCH, or semi-PersistentOnPUCCH. (Note 18) The method described in Appendix 17, wherein the CSI reporting configuration and / or the CSI report does not support periodic CSI reporting, or the report type (reportConfigType) parameter in the CSI reporting configuration is not configured to periodic. (Note 19) The reportQuantity parameter in the channel status information (CSI) reporting configuration is the method according to any one of the following: a first piece of information indicating feedback CRI, RI, LI, PMI, and CQI (cri-RI-LI-PMI-CQI), a second piece of information indicating feedback CRI, RI, PMI, and CQI (cri-RI-PMI-CQI), a third piece of information indicating feedback CRI, RI, i1 (cri-RI-i1), a fourth piece of information indicating feedback CRI, RI, i1, and CQI (cri-RI-i1-CQI), and a fifth piece of information indicating feedback CRI, RI, and CQI (cri-RI-CQI). (Note 20) The parameter for the codebookType in the channel status information (CSI) reporting configuration is the method according to any one of the methods described in Appendix 1 to 19, which includes at least one of the first type single panel (typeI-SinglePanel) and the first type multi-panel (typeI-MultiPanel). (Note 21) The method according to Appendix 20, wherein the channel status information (CSI) reporting configuration relates to the first reference signal resource and the second reference signal resource, the codebook type is expected to be set to a first parameter, the first parameter being type I and / or type I-SinglePanel and / or type I-MultiPanel. (Note 22) The method according to any one of the appendices 1 to 21, wherein the codebookConfig in the channel status information (CSI) reporting configuration comprises a first codebook subset restriction and a second codebook subset restriction, the first codebook subset restriction is applied to the reporting PMI associated with the first reference signal resource, and the second codebook subset restriction is applied to the reporting PMI associated with the second reference signal resource. (Note 23) The method according to any one of the appendices 1 to 21, wherein the codebookConfig in the channel status information (CSI) reporting configuration is configured such that a codebook subset restriction is configured, the codebook subset restriction is applied to the reporting PMI associated with the first reference signal resource, and a subset of the codebook subset restriction is applied to the reporting PMI associated with the second reference signal resource. (Note 24) The method according to Appendix 22, wherein the codebookConfig in the channel status information (CSI) reporting configuration comprises a first codebook subset restriction and a second codebook subset restriction, the first reference signal resource corresponds to a first value of the first parameter of the codebook type, and the second reference signal resource corresponds to a second value of the first parameter of the codebook type. (Note 25) The channel status information (CSI) reporting configuration includes a second parameter, the second parameter being: Whether the CSI report includes multiple CSIs, Whether the CSI report relates to multiple modes / patterns, Whether the aforementioned CSI report is related to network energy saving, The method according to any one of the appendices 1 to 24, which indicates whether or not the CSI report relates to a first reference signal resource and a second reference signal resource for channel measurement. (Note 26) The channel status information (CSI) reporting configuration includes a second parameter, the second parameter being: The number of CSIs included in the aforementioned CSI report, Mode / pattern related to the aforementioned CSI report, The number of modes / patterns related to the aforementioned CSI report, The amount of CSI feedback related to the aforementioned CSI report, The number of reference signal resources for channel measurements, whether or not they are related to the aforementioned CSI report, If the second parameter signal resource is part of the first reference signal resource, the method according to any one of the appendices 1 to 24, which indicates at least one of the port instruction information of the second reference signal resource. (Note 27) Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first CRI and the second CRI, or transmits the first CRI and does not transmit the second CRI, or does not transmit the first CRI and the second CRI. The method according to any one of the appendices 1 to 26, wherein the first CRI and the second CRI are related to the first reference signal resource and the second reference signal resource, respectively, or are related to the first CSI and the second CSI, respectively. (Note 28) Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first RI and the second RI, or transmits the first RI. The method according to any one of the appendices 1 to 26, wherein the first RI and the second RI 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. (Note 29) Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first PMI and the second PMI, or transmits the first PMI. The network device derives a second PMI based on a first PMI, and the first PMI and the second PMI are associated with the first reference signal resource and the second reference signal resource, respectively, or with the first CSI and the second CSI, respectively, according to any of the methods in Appendix 1 to 26. (Note 30) Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first PMI and the first PMI offset. The network device derives a second PMI based on a first PMI and a first PMI offset, wherein the first PMI and the first PMI offset are related to the first reference signal resource and the second reference signal resource, respectively, or to the first CSI and the second CSI, respectively, as described in any of the methods in Appendix 1 to 26. (Note 31) Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first CQI and the second CQI, or transmits the first CQI. The network device derives a second CQI based on a first CQI, and the first CQI and the second CQI are related to the first reference signal resource and the second reference signal resource, respectively, or to the first CSI and the second CSI, respectively, as described in any of the appendices 1 to 26. (Note 32) Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first CQI and the first CQI offset. The network device derives a second CQI based on a first CQI and a first CQI offset, wherein the first CQI and the first CQI offset are associated with the first reference signal resource and the second reference signal resource, respectively, or with the first CSI and the second CSI, respectively, as described in any of the appendices 1 to 26. (Note 33) If an LI is configured, the terminal device transmits a first LI and a second LI based on the second parameter, or based on the first reference signal resource and the second reference signal resource, or transmits a first LI and does not transmit a second LI, or does not transmit a first LI and a second LI, as described in any of the appendices 27 to 32. (Note 34) The method according to any one of the appendices 1 to 33, wherein the CSI report includes N CSIs, the CSI report configuration relates to at least N reference signal resources for channel measurement, and each of the N CSIs relates to the N reference signal resources, where N is 2 or more. (Note 35) The method according to Appendix 34, further comprising the step of the terminal device selecting / determining / confirming K CSIs included in the CSI report, wherein the K CSIs include at least the first CSI and the second CSI, K is 2 or more, and K is N or less. (Note 36) The method according to Appendix 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, the remaining (K-1) CSIs are included in the second part (CSI Part II) of the CSI report, and the third parameter indicates the feedback amount and / or bit size of the (K-1) CSIs in the second part (CSI Part II). (Note 37) The third parameter is the method described in Appendix 36 indicating whether the (K-1) CSIs in the second part (CSI Part II) include CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset. (Appendix 38) A method for transmitting a channel state information (CSI) report, comprising: a step in which a terminal device receives a channel state information (CSI) reporting configuration; a step of transmitting a CSI report based on the channel state information (CSI) reporting configuration, where the CSI reporting configuration is related to at least N reference signal resources for channel measurement, and / or the N CSIs include N channel state information (CSIs), and the N CSIs are each related to the N reference signal resources. (Appendix 39) The method according to Appendix 38, further comprising a step in which the terminal device selects / determines / identifies K CSIs included in the CSI report, where K is 1 or more and K is not more than N. (Appendix 40) The first CSI and the third parameter among the K CSIs are included in the first part (CSI Part I) of the CSI report, the remaining (K-1) CSIs are included in the second part (CSI Part II) of the CSI report, and the third parameter indicates the feedback amount and / or bit size of the (K-1) CSIs in the second part (CSI Part II). (Appendix 41) The third parameter is the method described in Appendix 40 indicating whether the (K-1) CSIs in the second part (CSI Part II) include CRI and / or RI and / or PMI and / or PMI offset and / or CQI and / or CQI offset. (Appendix 42) A method for receiving a channel state information (CSI) report, comprising: The step in which a network device transmits a channel state information (CSI) report configuration; The step in which the network device receives a CSI report transmitted by a terminal device based on the channel state information (CSI) report configuration, including: The CSI report configuration is related to 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). The first channel state information (CSI) is related to the first reference signal resource for channel measurement, and the second channel state information (CSI) is related to the second reference signal resource for channel measurement. (Appendix 43) A terminal device including a memory storing a computer program and a processor, wherein the processor is configured to implement the method for transmitting a channel state information report according to any one of Appendices 1 to 41 by executing the computer program. (Appendix 44) A network device including a memory storing a computer program and a processor, wherein the processor is configured to implement the method for receiving a channel state information report according to Appendix 42 by executing the computer program.

Claims

1. A device for transmitting channel status information reports, A receiving unit that receives the channel status information report configuration, Includes a transmission unit that transmits a channel status information report based on the channel status information reporting configuration, The channel status information reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the channel status information report includes at least first channel status information and second channel status information, wherein the first channel status information relates to a first reference signal resource for channel measurement, and the second channel status information relates to a second reference signal resource for channel measurement, in an apparatus.

2. The first reference signal resource has M ports, and the second reference signal resource has N ports, where N is less than M. The apparatus according to claim 1, wherein the second reference signal resources of the N ports are part of the first reference signal resources of the M ports, or the second reference signal resources of the N ports are different from the first reference signal resources of the M ports.

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

4. The channel status information reporting configuration and / or the channel status information report and / or the first channel status information and / or the second channel status information supports a first type of channel status information having broadband granularity. The apparatus according to claim 1, wherein 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 does not support a first type of channel state information having subband granularity, a second type of channel state information and an extended second type of channel state information.

5. The channel status information reporting configuration and / or the channel status information report and / or the first channel status information and / or the second channel status information supports a first type of channel status information. The apparatus according to claim 1, wherein the channel status information reporting configuration and / or the channel status information report and / or the first channel status information and / or the second channel status information does not support a second type of channel status information and an extended second type of channel status information.

6. The channel status information reporting configuration and / or the channel status information report and / or the first channel status information and / or the second channel status information supports broadband granularity CQI and / or broadband granularity PMI, The apparatus according to claim 1, wherein the channel status information reporting configuration and / or the channel status information report and / or the first channel status information and / or the second channel status information does not support CQI having subband granularity and / or PMI having subband granularity.

7. The channel status information reporting configuration and / or the channel status information report supports aperiodic channel status information reporting, or the reporting type parameter in the channel status information reporting configuration is configured aperiodicly. The apparatus according to claim 1, wherein the channel status information reporting configuration and / or the channel status information report does not support semi-sustaining channel status information reports based on PUCCH, semi-sustaining channel status information reports based on PUSCH, and periodic channel status information reports, or the reporting type parameter in the channel status information reporting configuration is not configured to be periodic, semi-sustaining on PUCCH, or semi-sustaining on PUSCH.

8. The channel status information reporting configuration and / or the channel status information report supports aperiodic channel status information reports and semi-persistent channel status information reports based on PUSCH, or the channel status information reporting configuration and / or the channel status information report supports channel status information reports based on PUSCH, or the reporting type parameter in the channel status information reporting configuration is configured to be aperiodic or PUSCH semi-persistent. The apparatus according to claim 1, wherein the channel status information reporting configuration and / or the channel status information report does not support periodic channel status information reports and semi-persistent channel status information reports based on PUCCH, or the channel status information reporting configuration and / or the channel status information report does not support channel status information reports based on PUCCH, or the reporting type parameter in the channel status information reporting configuration is not configured to be periodic or semi-persistent via PUCCH.

9. The channel status information reporting configuration and / or the channel status information report supports aperiodic channel status information reports, semi-sustained channel status information reports based on PUSCH, and semi-sustained channel status information reports based on PUCCH, or the channel status information reporting configuration and / or the channel status information report supports aperiodic channel status information reports and semi-sustained channel status information reports, or the reporting type parameter in the channel status information reporting configuration is configured to be aperiodic, PUSCH semi-sustained, or PUCCH semi-sustained. The apparatus according to claim 1, wherein the channel status information reporting configuration and / or the channel status information report does not support periodic channel status information reports, or the report type parameter in the channel status information reporting configuration is not configured periodically.

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

11. The parameter of the codebook type in the channel status information reporting configuration includes at least one of a first type single panel and a first type multi-panel, The apparatus according to claim 1, wherein the channel status information reporting configuration relates to the first reference signal resource and the second reference signal resource, the codebook type is expected to be set to a first parameter, the first parameter being a first type and / or a first type single panel and / or a first type multi-panel.

12. The codebook configuration in the channel status information reporting configuration comprises a first codebook subset restriction and a second codebook subset restriction, wherein the first codebook subset restriction is applied to the reporting PMI associated with the first reference signal resource, and the second codebook subset restriction is applied to the reporting PMI associated with the second reference signal resource, or, The codebook configuration in the channel status information reporting configuration includes a codebook subset restriction, which is applied to the reporting PMI associated with the first reference signal resource, and a subset of the codebook subset restriction is applied to the reporting PMI associated with the second reference signal resource. The apparatus according to claim 1, wherein the codebook configuration in the channel status information reporting configuration comprises a first codebook subset restriction and a second codebook subset restriction, the first reference signal resource corresponds to a first value of a first parameter of the codebook type, and the second reference signal resource corresponds to a second value of a first parameter of the codebook type.

13. The channel status information reporting configuration includes a second parameter, the second parameter being: Whether the channel status information report includes multiple channel status information, Whether the channel status information report relates to multiple modes / patterns, Whether or not the channel status information report is related to network energy saving, The channel status information report indicates at least one of the following: whether or not it relates to a first reference signal resource and a second reference signal resource for channel measurement, The second parameter mentioned above is, The number of channel status information entries included in the channel status information report, Modes / patterns related to the channel status information report, The number of modes / patterns related to the channel status information report, The channel status information feedback amount related to the channel status information report, The number of reference signal resources for channel measurement, whether or not they are related to the channel status information report, The apparatus according to claim 1, wherein, if the second reference signal resource is part of the first reference signal resource, at least one of the port instruction information of the second reference signal resource is shown.

14. Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first CRI and the second CRI, or transmits the first CRI and does not transmit the second CRI, or does not transmit the first CRI and 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 channel state information and the second channel state information, respectively, or Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first RI and the second RI, or transmits the first RI, and the first RI and the second RI are associated with the first reference signal resource and the second reference signal resource, respectively, or are associated with the first channel state information and the second channel state information, respectively, or Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first PMI and the second PMI, or transmits the first PMI, and the network device derives the second PMI based on the first PMI, and the first PMI and the second PMI are associated with the first reference signal resource and the second reference signal resource, respectively, or associated with the first channel state information and the second channel state information, respectively, or Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first PMI and the first PMI offset, and 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 being related to the first reference signal resource and the second reference signal resource, respectively, or related to the first channel state information and the second channel state information, respectively, or Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits the first CQI and the second CQI, or transmits the first CQI, the network device derives the second CQI based on the first CQI, and the first CQI and the second CQI are associated with the first reference signal resource and the second reference signal resource, respectively, or associated with the first channel state information and the second channel state information, respectively, or Based on the second parameter, or based on the first reference signal resource and the second reference signal resource, the terminal device transmits a first CQI and a first CQI offset, and 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 being associated with the first reference signal resource and the second reference signal resource, respectively, or with the first channel state information and the second channel state information, respectively. The apparatus according to claim 1, wherein, if an LI is configured, the terminal device transmits a first LI and a second LI based on the second parameter, or based on the first reference signal resource and the second reference signal resource, or transmits a first LI and does not transmit a second LI, or does not transmit a first LI and a second LI.

15. The apparatus according to claim 1, wherein the channel status information report includes N channel status information, the channel status information reporting configuration is associated with at least N reference signal resources for channel measurement, and each of the N channel status information is associated with the N reference signal resources, where N is 2 or more.

16. The apparatus according to claim 15, further comprising a processing unit for selecting / determining / confirming K channel state information included in the channel state information report, wherein the K channel state information includes at least the first channel state information and the second channel state information, and K is 2 or more and K is N or less.

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

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

19. A receiving device for channel status information reports, A transmission unit that transmits channel status information reporting configuration, Includes a receiving unit that receives a channel status information report transmitted by a terminal device based on the channel status information reporting configuration, The channel status information reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the channel status information report includes at least first channel status information and second channel status information, wherein the first channel status information relates to a first reference signal resource for channel measurement, and the second channel status information relates to a second reference signal resource for channel measurement, in an apparatus.

20. A network device that sends a channel status information reporting configuration and receives a channel status information report, Includes a terminal device that transmits the channel status information report based on the channel status information reporting configuration, A communication system wherein the channel status information reporting configuration relates to at least a first reference signal resource and a second reference signal resource for channel measurement, and / or the channel status information report includes at least first channel status information and second channel status information, wherein the first channel status information relates to a first reference signal resource for channel measurement, and the second channel status information relates to a second reference signal resource for channel measurement.

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