Method and apparatus for mapping channel state information

Abstract

Embodiments of the present invention provide a method and apparatus for mapping channel state information, the method comprising: a terminal device receiving a channel state information (CSI) reporting setting, the channel state information (CSI) reporting setting relating to K CSIs, the channel state information (CSI) reporting setting comprising P sub-settings, one of the P sub-settings corresponding to at least one CSI, such that 1 ≤ P ≤ K; the terminal device receiving instruction information, the instruction information used to trigger (instruct / activate) N sub-settings among the P sub-settings, such that 1 ≤ N ≤ P; and the terminal device confirming a CSI report based on at least a CSI domain mapping order, the CSI report comprising at least one CSI corresponding to the N sub-settings.

Description

Technical Field

[0001] The present invention relates to the technical field of communications.

Background Art

[0002] As an important component for building a global new infrastructure, 5G communication networks have been growing rapidly worldwide in recent years. Along with the construction of 5G, AAU (Active Antenna Unit) has been widely commercialized. Compared with the main RRU (Remote Radio Unit) in 3G and 4G, the power consumption of AAU is large, so the energy consumption of 5G devices doubles.

[0003] In 5G, three types of services / traffic, namely eMBB (Enhanced Mobile Broadband), mMTC (massive Machine Type of Communication), and URLLC (Ultra Reliable Low Latency Communication), are defined. As a result, in 5G, the business of microbursts continues to increase, so the base station operates continuously 24 hours a day, and the daily energy consumption of 5G sites is more than twice that of 4G.

[0004] Also, 3GPP (registered trademark) has introduced important technologies such as Massive MIMO and wider radio frequency bandwidth for the 5G era. 5G supports higher data rates and larger data volumes and requires more transmission bandwidth, so the deployment of high-frequency bands will also become the main frequency band for the future expansion of 5G. However, since the transmission characteristics of high-frequency bands limit the coverage of sites, the deployment of 5G sites becomes dense, and the increase in energy consumption accompanying the increase in sites also poses a great operational cost pressure on communication operators.

[0005] As network scale expands, energy consumption in the telecommunications industry continues to increase. According to data released by China's Ministry of Industry and Information Technology, energy consumption in 2022 is projected to increase by approximately 80% compared to 2015. Therefore, energy conservation in networks is of crucial importance in reducing operating costs, and energy conservation in 5G networks remains an issue awaiting resolution.

[0006] To achieve energy savings, network equipment can perform energy-saving operations 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 equipment can achieve energy savings by turning off some antennas when the load is low, and in the time domain, network equipment can achieve energy savings by introducing cell-level non-discontinuous transmission / reception technology, which allows network equipment to refrain from transmitting and / or receiving signals during certain dormant periods.

[0007] The above-mentioned introduction of background art is intended to clearly and completely explain the proposed technical aspects of the present invention and to facilitate understanding by those skilled in the art. These technical aspects, as described in the background art of the present invention, should not be construed as being well-known to those skilled in the art. [Overview of the project] [Problems that the invention aims to solve]

[0008] However, the inventors discovered the following: wireless communication can have adverse effects in several scenarios where it is applied (e.g., energy-saving mode). For example, when network equipment dynamically adjusts the number of antennas or transmission power, a corresponding channel change may occur, potentially leading to inaccurate or untimely channel state information (CSI) reports from terminal equipment, which could ultimately affect transmission performance. Therefore, how terminal equipment performs CSI mapping is currently a critical issue that needs to be resolved.

[0009] To solve at least one of the above-mentioned problems, embodiments of the present invention provide a method and apparatus for mapping channel state information. [Means for solving the problem]

[0010] According to one aspect of the embodiments of the present invention, a method for mapping channel status information (CSI) is provided, which is: A terminal device receives a channel status information (CSI) reporting setting, the channel status information (CSI) reporting setting is associated with K CSIs, the channel status information (CSI) reporting setting includes P sub-settings, one of the P sub-settings corresponds to at least one CSI, and of which 1 ≤ P ≤ K; The terminal device receives instruction information, and the instruction information is used to trigger (instruct / activate) N sub-settings out of the P sub-settings, where 1 ≤ N ≤ P; and The terminal device determines a CSI report based on the CSI field mapping order, and the CSI report includes at least one CSI corresponding to the N sub-settings.

[0011] According to another aspect of the embodiments of the present invention, a channel state information mapping device is provided, which is, A first receiving unit that receives a channel status information (CSI) reporting setting, wherein the channel status information (CSI) reporting setting is associated with K CSIs, the channel status information (CSI) reporting setting includes P sub-settings, one of the P sub-settings corresponds to at least one CSI, and among them 1 ≤ P ≤ K; A second receiving unit that receives instruction information, wherein the instruction information is used to trigger (instruct / activate) N sub-settings out of the P sub-settings, and 1 ≤ N ≤ P; and The system includes, at a minimum, a processing unit that determines a CSI report based on a CSI area mapping order, wherein the CSI report includes at least one CSI corresponding to the N sub-settings.

[0012] According to another aspect of the embodiments of the present invention, a method for mapping channel status information (CSI) reports is provided, which is: A network device transmits a Channel Status Information (CSI) reporting configuration, the Channel Status Information (CSI) reporting configuration is associated with K CSIs, the Channel Status Information (CSI) reporting configuration includes P subconfigurations, one of the P subconfigurations corresponds to at least one CSI, where 1 ≤ P ≤ K; and The network device transmits instruction information, which is used to trigger (instruct / activate) N sub-settings out of the P sub-settings, and includes the condition that 1 ≤ N ≤ P. The terminal device determines a CSI report based on the CSI area mapping order, and the CSI report includes at least one CSI corresponding to the N sub-settings.

[0013] According to another aspect of the embodiments of the present invention, a channel state information mapping device is provided, which is, A first transmitting unit that transmits a channel status information (CSI) reporting setting, wherein the channel status information (CSI) reporting setting relates to K CSIs, the channel status information (CSI) reporting setting includes P sub-settings, one of the P sub-settings corresponds to at least one CSI, and of which 1 ≤ P ≤ K; A second transmission unit that transmits instruction information, the instruction information is used to trigger (instruct / activate) N sub-settings out of the P sub-settings, and includes those such that 1 ≤ N ≤ P. The terminal device determines a CSI report based on the CSI area mapping order, and the CSI report includes at least one CSI corresponding to the N sub-settings.

[0014] According to another aspect of the embodiment of the present invention, a communication system is provided, which is, Including network equipment and terminal equipment, The network device transmits a Channel Status Information (CSI) reporting configuration, the Channel Status Information (CSI) reporting configuration is associated with K CSIs, the Channel Status Information (CSI) reporting configuration includes P subconfigurations, one of the P subconfigurations corresponds to at least one CSI, where 1 ≤ P ≤ K; and transmits instruction information, the instruction information is used to trigger (instruct / activate) N subconfigurations out of the P subconfigurations, where 1 ≤ N ≤ P. The terminal device determines a CSI report based on the CSI area mapping order, and the CSI report includes at least one CSI corresponding to the N sub-settings. [Effects of the Invention]

[0015] The advantageous effects of the embodiments of the present invention are at least as follows: even in several scenarios in which wireless communication is applied (e.g., energy-saving mode), terminal equipment can accurately perform CSI mapping, thereby enabling accurate and efficient transmission of CSI reports, reducing the overhead of CSI reporting, and saving uplink resources.

[0016] Specific embodiments of the present invention will be disclosed in detail by referring to the following description and drawings, and will show embodiments in which the principles of the present invention can be employed. However, the embodiments of the present invention are not limited to these in scope. Embodiments of the present invention may include various changes, modifications and substitutions within the scope of the attached claims.

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

[0018] Note that terms such as "comprising / including" when used in this specification refer to the presence of features, elements, steps, or assemblies, but also refer to the fact that they do not exclude the presence or addition of one or more other features, elements, steps, or assemblies.

Brief Description of the Drawings

[0019] The elements and features described in one drawing or one embodiment of the present invention can be combined with the elements and features shown in one or more other drawings or embodiments. Also, in the drawings, like reference numerals indicate corresponding parts in several drawings and are also used to indicate corresponding parts used in multiple embodiments. [Figure 1] It is a diagram showing a communication system in an embodiment of the present invention. [Figure 2] It is a diagram showing a method for mapping channel state information in an embodiment of the present invention. [Figure 3] It is another diagram showing a method for mapping channel state information in an embodiment of the present invention. [Figure 4] It is a diagram showing a mapping device for channel state information in an embodiment of the present invention. [Figure 5] It is another diagram showing a mapping device for channel state information in an embodiment of the present invention. [Figure 6] It is a diagram showing a network device in an embodiment of the present invention. [Figure 7] It is a diagram showing a terminal device in an embodiment of the present invention.

Modes for Carrying Out the Invention

[0020] By referring to the accompanying drawings and the following description, the foregoing and other features of the present invention will become apparent. Although specific embodiments of the present invention are disclosed in the specification and drawings, they are only some of the embodiments that can adopt the principles of the present invention. It should be understood that the present invention is not limited to the described embodiments, that is, the present invention also includes all modifications, variations, and alternatives within the scope of the appended patent claims.

[0021] In embodiments of the present invention, the terms "communication network" or "wireless communication network" may refer to a network conforming to any communication standard such as NR (New Radio), LTE (Long Term Evolution), LTE-A (LTE-Advanced), WCDMA (Wideband Code Division Multiple Access), HSPA (High-Speed ​​Packet Access), etc.

[0022] Furthermore, communication between devices in a communication system may be carried out according to any communication standard, and may include, but is not limited to, the following communication standards: namely, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, New Radio (NR), and / or other conventional or future-developed communication standards.

[0023] In embodiments of the present invention, the term "network device" refers, for example, to a device in a communication system that connects terminal devices to a communication network and provides services to said terminal devices. Network devices may include, but are not limited to, the following: "nodes" and / or "donors" in the IAB architecture, base stations (BS), access points (AP), transmission and reception points (TRP), broadcast transmitters, mobile management entities (MME), network gateways, servers, radio network controllers (RNC), base station controllers (BSC), etc.

[0024] Among these, base stations may include, but are not limited to, Node B (NodeB or NB), Evolutionary Node B (eNodeB or eNB), 5G base stations (gNB), and may also include RRH (Remote Radio Head), RRU (Remote Radio Unit), relay, or low-power nodes (e.g., femto, pico). Furthermore, the term “base station” may include some or all of these functions, and each base station can provide communication coverage to a specific geographical area. For example, a 5G base station gNB may include one gNB CU and one or more gNB DUs, where the CU / DU is a logical node of the gNB having some of the functions of the gNB. The term “cell” may refer to a base station and / or the area it covers, which is determined by the context in which the term is used.

[0025] In embodiments of the present invention, the terms "User Equipment" (UE) or "Terminal Equipment" (TE) refer to devices that access a communication network via network equipment and receive services from the network. User equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), terminal, subscriber station (SS), access terminal (AT), or station. For example, it may be terminal equipment served by an IAB node or IAB donor under an IAB architecture.

[0026] User devices may include, but are not limited to, the following: cellular phones, PDAs (Personal Digital Assistants), wireless modems, wireless communication devices, mobile devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smartwatches, digital cameras, etc.

[0027] Furthermore, in scenarios such as IoT (Internet of Things), user devices may also be monitoring or measuring devices or equipment, and may include, but are not limited to, the following: machine-type communication (MTC) terminals, in-vehicle communication terminals, D2D (device-to-device) terminals, M2M (machine-to-machine) terminals, etc.

[0028] Furthermore, the terms “network side” or “network device side” refer to the network side, which may be a base station or include one or more network devices as described above. The terms “user side” or “terminal side” or “terminal device side” refer to the user or terminal side, which may be a UE or include one or more terminal devices as described above.

[0029] The following describes a scenario of an embodiment of the present invention through examples, but the present invention is not limited thereto.

[0030] Figure 1 shows a communication system in an embodiment of the present invention, illustrating an example using terminal equipment and network equipment. As shown in Figure 1, the communication system 100 may include network equipment 101 and terminal equipment 102 and 103. For convenience, Figure 1 uses two terminal devices and one network device as examples, but embodiments of the present invention are not limited to these.

[0031] In embodiments of the present invention, existing or future operational tasks may be transmitted between the network device 101 and terminal devices 102 and 103. For example, these tasks include, but are not limited to, eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), and URLLC (Ultra-Reliable and Low-Latency Communication).

[0032] Although Figure 1 shows that both terminal devices 102 and 103 are within the coverage of network device 101, the present invention is not limited to this. Both terminal devices 102 and 103 may be outside the coverage of network device 101, or one terminal device 102 may be within the coverage of network device 101 and the other terminal device 103 may be outside the coverage of network device 101.

[0033] In embodiments of the present invention, the upper-layer signaling may be, for example, radio resource control (RRC) signaling, referred to as an RRC message, and including, for example, MIB, system information, and dedicated RRC messages; or referred to as an RRC IE (RRC information element). The upper-layer signaling may further be, for example, MAC (Medium Access Control) signaling; or referred to as a MAC CE (MAC control element). However, the present invention is not limited to these.

[0034] In mobile communication systems, terminal devices typically measure channel state information (CSI) based on instructions and settings from network devices, and then report the measured CSI to the network devices. When scheduling for the terminal devices, the network devices refer to the CSI to schedule the terminal devices to transmit using appropriate resources and transmission methods. Different terminal devices may go through different physical channel conditions, and by employing a CSI feedback mechanism, resources can be utilized rationally and efficiently, thereby improving the overall efficiency of network transmission.

[0035] In the NR's CSI feedback mechanism, terminal equipment measures and reports a reference signal based on the CSI settings. The CSI may include CQI (Channel Quality Indicator), PMI (Precoding Matrix Indicator), Channel Measurement Reference Signal Resource Indicator (CSI-RS Resource Indicator, CRI), Synchronization signal / physical broadcast channel (SS / PBCH) block resource indicator (SS / PBCH Resource Indicator, SSBRI), layer indicator (LI), and rank indicator (RI).

[0036] In the NR's CSI reporting framework, CSI reports (for reporting purposes) are associated with CSI resources (for measurement purposes). CSI reports can be configured into three types: periodic CSI reports (P-CSI), transmitted only on the Physical Uplink Control Channel (PUCCH); semi-sustained CSI reports (SP-CSI), transmitted on the PUCCH or Physical Uplink Shared Channel (PUSCH); and aperiodic CSI reports (AP-CSI), transmitted only on the PUSCH.

[0037] First, we will explain the PUSCH-based CSI reporting. PUSCH-based CSI reporting supports Type I bandwidth or subband CSI, as well as Type II CSI, as shown in Table 1.

[0038] [Table 1] For PUSCH-based Type I, Type II, and Enhanced Type II CSIs, a single CSI report consists of two parts (Part 1 and Part 2), of which Part 1 of the CSI (CSI Part 1, also called Part 1) has a fixed payload size and indicates the number of information bits in Part 2 of the CSI (CSI Part 2, also called Part 2).

[0039] For Type I CSI reports, 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.

[0040] For Type II CSI reports, Part 1 includes one or more indications of the non-zero bandwidth amplitude coefficients for each layer of RI, CQI, and Type II CSI, while Part 2 includes the PMI for Type II CSI.

[0041] Regarding the enhanced Type II CSI report, Part 1 includes indications of the total number of cross-layer zero amplitude coefficients for RI, CQI, and enhanced Type II CSI, while Type II includes PMI for enhanced Type II CSI.

[0042] When a PUSCH-reported CSI includes Part 1 and Part 2, the terminal equipment (UE) may omit some of the content of Part 2, and the rules for omitting Part 2 follow a priority order from high to low, with the priority order corresponding to the PUSCH-reported CSI area mapping sequence table.

[0043] Next, we will explain PUCCH-based CSI reporting. PUCCH-based CSI reporting supports Type I bandwidth or subband CSI, as well as Type II CSI, as shown in Table 2.

[0044] [Table 2] Periodic CSI reporting based on PUCCH format 2, 3, and 4 supports bandwidth Type I CSI; Semi-persistent CSI reporting based on PUCCH format 2 supports bandwidth Type I CSI; Semi-persistent CSI reporting based on PUCCH format 3 or 4 supports bandwidth and subband Type I CSI, and Type II CSI Part I: When a subband Type I CSI is reported according to PUCCH format 3 or 4, the CSI payload can be divided into two parts (Part 1 and Part 2). Part 1 includes part or all of the RI, CRI, and CQI corresponding to the first codeword, and Part 2 includes the PMI and CQI corresponding to the second codeword.

[0045] When a single CSI report contains two parts, Part I and Part II, the terminal equipment (UE) may omit some of the contents of Part II, and the priority order is consistent with the PUCCH report-based CSI area mapping sequence.

[0046] The following describes the PUSCH-based CSI area mapping. Table 3 shows an example for the CSI part 1 portion. Table 3 is CSI Part 1.

[0047] [Table 3] Table 4 provides an illustrative example of the CSI Part 2 portion. Table 4 is CSI Part 2 Wideband for Type I.

[0048] [Table 4] Table 5 shows the case of the CSI Part 2 subband. Table 5 is CSI Part 2 Subband for Type I.

[0049] [Table 5] The above provides an illustrative example of the PUCCH-based CSI area mapping; further details can be found in standard (protocol) 38.212. The following provides a more illustrative explanation of PUCCH-based CSI area mapping.

[0050] Table 6 exemplifies the case of the Type I bandwidth CSI portion. Table 6 is a PUCCH-based CSI region mapping table for pmi-FormatIndicator=widebandPMI and cqi-FormatIndicator=widebandCQI or reportQuantity set to 'cri-RI-CQI' and cqi-FormatIndicator=widebandCQI. Table 6 is Type I bandwidth CSI (periodic CSI reporting based on PUCCH and semi-sustaining CSI reporting based on PUCCH format2).

[0051] [Table 6] Table 7 illustrates the case of CSI Part 1. Table 7 illustrates semi-persistent CSI reporting based on PUCCH format 2, 3, and 4, with pmi-FormatIndicator=subbandPMI or cqi-FormatIndicator=subbandCQI.

[0052] [Table 7] Table 8 provides an example of the CSI Part 2 bandwidth portion (wideband pmi-FormatIndicator=subbandPMI or cqi-FormatIndicator=subbandCQI).

[0053] [Table 8] Table 9 illustrates the case of the CSI Part 2 subband (subband pmi-FormatIndicator=subbandPMI or cqi-FormatIndicator=subbandCQI).

[0054] [Table 9] The above is an illustrative example of the PUCCH-based CSI area mapping; for further details, please refer to standard 38.212.

[0055] The inventors discovered the following: In a network energy-saving scenario, one viable scheme to mitigate the problem of channel changes caused by network equipment adjusting the number of antennas is as follows: terminal equipment reports multiple CSIs at the same reporting time, each CSI corresponding to one antenna adjustment mode or antenna configuration scheme. This allows network equipment to acquire accurate CSIs in a timely manner for data scheduling and also to create recommendations for antenna adjustments for network equipment.

[0056] In network energy-saving scenarios, terminal devices may report multiple CSIs at the same reporting time, and these multiple CSIs may correspond to the same CSI reporting setting or to different CSI reporting settings. When a single CSI report contains multiple CSIs (for example, each CSI corresponds to one antenna tuning mode or antenna setting scheme), current standards do not clearly specify or explain what the CSI fields should be mapped to. Therefore, the mapping order of CSI fields in multi-CSI reporting is currently an issue awaiting resolution in 3GPP standardization. The following explanation will use an energy-saving scenario as an example, but the present invention is not limited to this and can be applied to any scenario involving channel status information reporting.

[0057] <Example of the first side view> An embodiment of the present invention provides a method for mapping channel state information, which will be explained from the perspective of the terminal device. Figure 2 is a diagram showing the channel state information mapping method in an embodiment of the present invention. As shown in Figure 2, the method includes the following, namely, 201: A terminal device receives a channel status information (CSI) reporting setting, the channel status information (CSI) reporting setting is associated with K CSIs, the channel status information (CSI) reporting setting includes P sub-settings, one of the P sub-settings corresponds to at least one CSI, and of which 1 ≤ P ≤ K; 202: The terminal device receives instruction information, and the instruction information is used to trigger / instruct / activate N sub-settings out of the P sub-settings, such that 1 ≤ N ≤ P; and 203: The terminal device determines a CSI report based on the CSI area mapping order, and the CSI report includes at least one CSI corresponding to the N sub-settings.

[0058] While Figure 2 above illustrates an example of the present invention, the invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or some operations can be appropriately increased or decreased. Those skilled in the art can make appropriate modifications based on the above description, without being limited to the description in Figure 2.

[0059] In some embodiments, one CSI reporting setting includes P CSI sub-settings, each of which corresponds to one CSI, for example, one spatial domain / energy domain adjustment mode. A terminal device can report N CSIs at one CSI reporting time, and these N CSIs are associated with N CSI sub-settings out of the P sub-settings.

[0060] The terminal device reports a CSI report at the CSI reporting time, and the CSI report includes the first CSI, second CSI, ..., nth CSI, each corresponding to sub-setting 1, sub-setting 2, ..., sub-setting N of the CSI, and different sub-settings correspond to different spatial domain / energy domain adjustment modes.

[0061] Taking N=4 as an example, the CSI report includes four CSIs: the first CSI (CSI with sub-setting 1) corresponds to the spatial domain adjustment mode for 32 CSI-RS ports, the second CSI (CSI with sub-setting 2) corresponds to the spatial domain adjustment mode for 16 ports, the third CSI (CSI with sub-setting 3) corresponds to the spatial domain adjustment mode for 8 ports, and the fourth CSI (CSI with sub-setting 4) corresponds to the spatial domain adjustment mode for 4 ports.

[0062] In some embodiments, the first CSI is a CSI baseline. For example, if the CSI-RS resource set includes multiple resources, and each resource is associated with at least one spatial domain adjustment mode, then each resource is associated with four spatial domain adjustment modes, the four spatial domain adjustment modes corresponding to 32 ports, 16 ports, 8 ports, and 4 ports, respectively, and the 16 ports, 8 ports, and 4 ports are subsets of the 32 ports. That is, the resources associated with the second, third, and fourth CSIs are subsets of the resources associated with the first CSI, and information for the second, third, and fourth CSIs can be obtained from the first CSI. Therefore, the first CSI becomes a CSI baseline.

[0063] In the embodiments of the present invention, for the sake of explanation, the first CSI, second CSI, ..., nth CSI can be replaced with the CSIs of sub-setting 1, sub-setting 2, ..., sub-setting N. The sub-settings can be replaced with groups, configurations, modes, patterns, sub-groups, sub-modes, sub-patterns, and so on.

[0064] In some embodiments, the sub-configuration includes one piece of information, namely, parameter N1; parameter N2; parameter Ng; codebook subset restriction; and port information, the port information being used to indicate a portion of the Channel Status Information Reference Signal (CSI-RS) resources associated with the Channel Status Information (CSI) reporting configuration.

[0065] For example, port information is in the form of a bitmap that indicates a subset of ports, where each bit in the bitmap represents one port, one code division multiplexing (CDM) set, or a predefined set of ports.

[0066] In some embodiments, the sub-configuration is included in the sub-configuration information (sub-config) of the channel status information (CSI) reporting configuration, or in the codebook configuration information (codebook config) of the channel status information (CSI) reporting configuration, or in the parameter configuration information (N1-N2 config) of the channel status information (CSI) reporting configuration.

[0067] For example, a CSI reporting configuration includes a sub-config list, where each sub-config in the list contains codebook configuration information (codebook config or codebook Type or codebook subset restrictions, N1, N2, and Ng) and / or port information; or a CSI reporting configuration includes P sub-configs, i.e., sub-config 1 to sub-config P, where each sub-config contains codebook configuration information (codebook config or codebook Type or codebook subset restrictions) and / or port information.

[0068] Alternatively, for example, the codebook config in the CSI reporting settings includes codebook config 1 to codebook config P, each corresponding to P sub-configurations, and one of the codebook configs 1 to codebook config P includes information such as codebook subset restrictions, N1, N2, Ng, etc., and the port information indicated by the port subset does not need to be obtained through explicit instruction information, but can be obtained through other predefined or implicit methods.

[0069] Alternatively, for example, the codebook config in the CSI reporting configuration includes N1-N2 1 to N1-N2 P, each corresponding to P sub-configurations, and one of the codebook configurations from codebook config 1 to codebook configurations P contains information such as N1, N2, and Ng, and the port information indicated by the port subset does not need to be obtained by explicit instruction information, but can be obtained by other predefined or implicit methods. In the CSI reporting configuration, only one common codebook subset restriction parameter is set, and the codebook subset restriction information for each sub-configuration can be obtained from the common codebook subset restriction parameter based on the N1, N2, and Ng parameters.

[0070] In some embodiments, the channel status information (CSI) reporting setting may be set by RRC signaling, and the instruction information may be DCI or MAC CE. The instruction information is used to instruct a terminal device to report a CSI report at the CSI reporting time, and the CSI report includes N CSIs, i.e., the first CSI, the second CSI, ..., the nth CSI, in other words, the CSI of sub-setting 1, the CSI of sub-setting 2, ..., the CSI of sub-setting N.

[0071] For example, the terminal device determines the CSI area information for CSI Part 1, Part 2 wideband, or Part 2 subband of the PUSCH-based CSI report according to the CSI area information, bit width, and one of the CSI area mapping order described below. After determining the CSI area information for the CSI report, the terminal device makes the CSI report at the CSI report time.

[0072] In some embodiments, the CSI report includes a first part of the CSI and a second part of the CSI, the N sub-settings include the i-th sub-setting, 1 ≤ i ≤ N, and one of the N sub-settings corresponds to one CSI.

[0073] The following further explanation of CSI area mapping will be given using a PUSCH-based CSI report as an example.

[0074] In some embodiments, in the first part of the CSI, the CSI domain mapping order includes the following: mapping is performed to the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0075] In some embodiments, the first information corresponding to a sub-setting includes at least one of the following: a CSI-RS resource indicator (CRI) corresponding to the sub-setting, a rank indicator corresponding to the sub-setting, a wideband CQI (CQI) for the first transmission block (TB) corresponding to the sub-setting, a subband differential CQI (CQI) corresponding to the sub-setting, and coefficient information corresponding to the sub-setting.

[0076] For example, a mapping can be performed to the first piece of information corresponding to a few previous sub-settings, in ascending order of the sub-setting index.

[0077] Table 10 shows one example of CSI area mapping for CSI Part 1.

[0078] [Table 10] As shown in Table 10, the order of non-zero amplitude coefficients is: CRI of sub-setting 1 > RI of sub-setting 1 > Wideband CQI of sub-setting 1 > Subband differential CQI of sub-setting 1. CSI Part 1 contains only the CSI information for sub-setting 1, while the information for sub-settings 2 to N is included in CSI Part 2.

[0079] In some embodiments, in the first part of the CSI, the CSI domain mapping order includes the following: mapping to the first information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, and mapping to the first information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0080] For example, the mapping of N sub-settings can be divided into two parts: the first part consists of L sub-settings, and the second part consists of NL sub-settings. Mapping is performed using mapping method A and mapping method B, respectively. Mapping method A first sorts according to the information type, and then sorts each information type according to the sub-settings. Mapping method B first sorts according to the sub-settings, and then sorts each sub-setting according to the information type.

[0081] In some embodiments, mapping the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed to CSI-RS resource instructions (CRIs) corresponding to zero or one or more of the L sub-settings in ascending order of the sub-setting index; Mapping is performed for rank indicators corresponding to zero or one or more sub-settings out of L sub-settings, in ascending order of the sub-setting index; A mapping is performed to the bandwidth CQI (wideband CQI) corresponding to zero or one or more of the L sub-settings in ascending order of the sub-setting index; Mapping is performed for subband differential CQIs corresponding to zero or one or more sub-settings out of L sub-settings in ascending order of the sub-setting index; and The coefficient information corresponding to zero or one or more sub-settings out of L sub-settings is mapped according to the ascending order of the sub-setting index.

[0082] In these embodiments, for example, mapping is performed first to the CRI of L sub-settings, then to the RI of L sub-settings, then to the bandwidth CQI of L sub-settings, then to the subband difference CQI of L sub-settings, and finally to the coefficient information of L sub-settings. If one or more of these pieces of information are not reported, the mapping may be omitted. Such a mapping method is referred to as mapping method A.

[0083] In some embodiments, mapping the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: The first information corresponding to L sub-settings is mapped according to the ascending order of the sub-setting index, and the first information of each sub-setting is mapped in the following order: namely, the CRI corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the wideband CQI corresponding to the sub-setting, the subband differential CQI corresponding to the sub-setting, and the coefficient information corresponding to the sub-setting.

[0084] In these embodiments, for example, mapping is performed first to the CRI, RI, bandwidth CQI, subband difference CQI, and coefficient information of the first sub-setting, then to the CRI, RI, bandwidth CQI, subband difference CQI, and coefficient information of the second sub-setting, ..., and finally to the CRI, RI, bandwidth CQI, subband difference CQI, and coefficient information of the Lth sub-setting. If one or more of these pieces of information are not reported, the mapping may be omitted. Such a mapping method is referred to as mapping method B.

[0085] In some embodiments, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed to CSI-RS resource instructions (CRIs) corresponding to zero or one or more of the subsequent NL sub-settings in ascending order of the sub-setting index; Mapping is performed to rank indicators corresponding to zero or one or more of the subsequent NL sub-settings in ascending order of the sub-setting index; Mapping is performed on the bandwidth CQI (wideband CQI) corresponding to zero or one or more of the subsequent NL sub-settings in ascending order of the sub-setting index; Mapping is performed for subband differential CQIs corresponding to zero or one or more of the subsequent NL sub-settings in ascending order of the sub-setting index; and The coefficient information corresponding to zero or one or more of the subsequent NL sub-settings is mapped according to the ascending order of the sub-setting index.

[0086] In these embodiments, for example, mapping is performed first to the CRI of the following NL sub-settings, then to the RI of the NL sub-settings, then to the bandwidth CQI of the NL sub-settings, then to the subband difference CQI of the NL sub-settings, and finally to the coefficient information of the NL sub-settings. If one or more of these pieces of information are not reported, the mapping may be omitted. Such a mapping method may be referred to as mapping method A.

[0087] In some embodiments, mapping the first information to NL sub-settings out of the subsequent N sub-settings in ascending order of the sub-setting index includes the following: The first information corresponding to the next NL sub-settings is mapped according to each sub-setting in ascending order of the sub-setting index, and the first information of each sub-setting is mapped in the following order: namely, the CRI corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the wideband CQI corresponding to the sub-setting, the subband differential CQI corresponding to the sub-setting, and the coefficient information corresponding to the sub-setting.

[0088] In these embodiments, for example, mapping is performed first to the CRI, RI, bandwidth CQI, subband difference CQI, and coefficient information of the L+1th sub-setting, then to the CRI, RI, bandwidth CQI, subband difference CQI, and coefficient information of the L+2nd sub-setting, ..., and finally to the CRI, RI, bandwidth CQI, subband difference CQI, and coefficient information of the Nth sub-setting. If one or more of these pieces of information are not reported, the mapping may be omitted. Such a mapping method may be referred to as mapping method B.

[0089] Table 11 shows one example of CSI domain mapping for CSI Part 1, where L=N, meaning there is only a preceding portion, and this preceding portion consists entirely of sub-settings, with mapping method A being used for all sub-settings.

[0090] [Table 11] As shown in Table 11, the CSI domain mapping order for CSI Part 1 is, for example, CRI of Sub-Setting 1 > ... > CRI of Sub-Setting N > RI of Sub-Setting 1 > ... > RI of Sub-Setting N > Wideband CQI of Sub-Setting 1 > ... > Wideband CQI of Sub-Setting N > Subband differential CQI of Sub-Setting 1 > ... > Subband differential CQI of Sub-Setting N > Coefficient information of Sub-Setting 1 > ... > Coefficient information of Sub-Setting N.

[0091] Table 12 shows another example of CSI domain mapping for CSI Part 1, taking the example where L=1 and mapping method B is used for all of the preceding part (previous L sub-settings) and the following part (following NL sub-settings), or taking the example where L=N and there is only a preceding part, and the preceding part consists entirely of sub-settings, and mapping method B is applied.

[0092] [Table 12] Table 13 shows another example of CSI domain mapping for CSI Part 1, where L=1, and mapping method B is used for the preceding portion (the first L sub-settings) and mapping method A is used for the succeeding portion (the second NL sub-settings).

[0093] [Table 13] The above describes the CSI area mapping portion of CSI Part 1 using Tables 11 to 13 as examples, but the present invention is not limited thereto. Tables 11 to 13 correspond to the complete report (without CSI overhead reduction) portion, and in some cases, some information may be further omitted.

[0094] In some embodiments, the CRI corresponding to the N sub-settings includes the CRI corresponding to the previous M sub-settings, and the CRI corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The rank indicators corresponding to the aforementioned N sub-settings include the rank indicators corresponding to the previous M sub-settings, and the rank indicators corresponding to the remaining NM sub-settings are omitted, where 1 ≤ M ≤ N; and / or The wideband CQI corresponding to the N sub-settings includes the wideband CQI corresponding to the previous M sub-settings, and the wideband CQI corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The subband differential CQIs corresponding to the N sub-settings include the subband differential CQIs corresponding to the previous M sub-settings, and the subband differential CQIs corresponding to the remaining NM sub-settings are omitted, where 1 ≤ M ≤ N; and / or The coefficient information corresponding to the aforementioned N sub-settings includes the coefficient information corresponding to the previous M sub-settings, while the coefficient information corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N.

[0095] For example, the CRI / RI / CQI of sub-configuration M and the CRI / RI / CQI of sub-configuration 1 are the same, or network equipment can derive the CRI / RI / CQI of sub-configuration M based on the CRI / RI / CQI of sub-configuration 1, and terminal equipment only needs to report the CRI / RI / PMI of sub-configuration 1, and the CRI / RI / CQI of sub-configuration M may be omitted and not reported, provided that 1 ≤ M ≤ N.

[0096] Table 14 shows another example of CSI domain mapping for CSI Part 1, where L=N, only the preceding portion exists, the preceding portion is entirely sub-settings, and mapping method A is used.

[0097] [Table 14] As shown in Table 14, based on Table 11, only the CRI of sub-setting 1 is reported, and the CRIs of sub-settings 2 to N are omitted and do not need to be reported. For example, the order is: CRI of sub-setting 1 > RI of sub-setting 1 > ... > RI of sub-setting N > Wideband CQI of sub-setting 1 > Coefficient information of sub-setting 1 > ... > Wideband CQI of sub-setting N > Subband differential CQI of sub-setting 1 > ... > Subband differential CQI of sub-setting N > Coefficient information of sub-setting N.

[0098] Furthermore, for example, it is not necessary to report only the RI for sub-setting 1 based on Table 11, and omit the RI for sub-settings 2 to N. Alternatively, it is not necessary to report only the CQI for sub-setting 1 based on Table 11, and omit the CQI for sub-settings 2 to N.

[0099] Table 15 shows another example of CSI domain mapping for CSI Part 1, taking the example where L=1 and mapping method B is used for all of the preceding part (L sub-settings) and the succeeding part (NL sub-settings), or taking the example where L=N and there is only a preceding part, and the preceding part consists entirely of sub-settings, and mapping method B is used.

[0100] [Table 15] As shown in Table 15, based on Table 12, only the CRI of sub-setting 1 is reported, and the CRIs of sub-settings 2 to N are omitted and do not need to be reported. For example, the order is: CRI of sub-setting 1 > RI of sub-setting 1 > Wideband CQI of sub-setting 1 > Subband differential CQI of sub-setting 1 > Coefficient information of sub-setting 1 > ... > RI of sub-setting N > Wideband CQI of sub-setting N > Subband differential CQI of sub-setting N > Coefficient information of sub-setting N.

[0101] Furthermore, for example, it is not necessary to report only the RI for sub-setting 1 based on Table 12, and omit the RI for sub-settings 2 to N. Alternatively, it is not necessary to report only the CQI for sub-setting 1 based on Table 12, and omit the CQI for sub-settings 2 to N.

[0102] Table 16 shows another example of CSI domain mapping for CSI Part 1, where L=1, and mapping method B is used for the first part (L sub-settings) and mapping method A is used for the second part (NL sub-settings).

[0103] [Table 16] As shown in Table 16, based on Table 10, only the CRI of sub-setting 1 is reported, and the CRIs of sub-settings 2 to N are omitted and do not need to be reported. For example, the order is: Sub-setting 1 CRI > Sub-setting 1 RI > Sub-setting 1 Wideband CQI > Sub-setting 1 Subband differential CQI > Sub-setting 1 coefficient information > Sub-setting 2 RI > ... > Sub-setting N RI > Sub-setting 2 Wideband CQI > ... > Sub-setting N Wideband CQI > Sub-setting 2 Subband differential CQI > ... > Sub-setting N Subband differential CQI > Sub-setting 2 coefficient information > ... > Sub-setting N coefficient information.

[0104] For example, based on Table 13, only the RI for sub-setting 1 can be reported, and the RIs for sub-settings 2 to N do not need to be reported. The RIs for sub-settings 2 to N are the same as the RI for sub-setting 1, or the RIs for other sub-settings can be derived based on the RI for sub-setting 1. Also, for example, based on Table 13, only the CQI for sub-setting 1 can be reported, and the CQIs for sub-settings 2 to N do not need to be reported. The CQIs for sub-settings 2 to N are the same as the CQI for sub-setting 1, or the CQIs for other sub-settings can be derived based on the CQI for sub-setting 1.

[0105] The above provides an illustrative explanation of CSI area mapping in CSI Part 1, but the present invention is not limited thereto.

[0106] For example, the mapping order is: Sub-setting 1 CRI > Sub-setting 1 RI > Sub-setting 1 Wideband CQI > Sub-setting 1 Subband differential CQI > Sub-setting 1 coefficient information > Sub-setting 2 CRI > ... > Sub-setting N CRI > Sub-setting 2 Wideband CQI > ... > Sub-setting N Wideband CQI > Sub-setting 2 Subband differential CQI > ... > Sub-setting N Subband differential CQI > Sub-setting 2 coefficient information > ... > Sub-setting N coefficient information.

[0107] For example, the mapping order is: CRI of sub-setting 1 > ... > CRI of sub-setting N > RI of sub-setting 1 > Wideband CQI of sub-setting 1 > ... > Wideband CQI of sub-setting N > Subband differential CQI of sub-setting 1 > ... > Subband differential CQI of sub-setting N > Coefficient information of sub-setting 1 > ... > Coefficient information of sub-setting N.

[0108] For example, the mapping order is: Sub-setting 1 CRI > Sub-setting 1 RI > Sub-setting 1 Wideband CQI > Sub-setting 1 Subband differential CQI > Sub-setting 1 coefficient information > Sub-setting 2 CRI > Sub-setting 2 Wideband CQI > Sub-setting 2 Subband differential CQI > Sub-setting 2 coefficient information > ... > Sub-setting N CRI > Sub-setting N Wideband CQI > Sub-setting N Subband differential CQI > Sub-setting N coefficient information.

[0109] In some embodiments, one or more types of information may be omitted; for example, the CRIs of sub-settings 1 to N may all be omitted and not reported. For example, if one CSI-RS is configured in the CSI-RS resource set, or if all terminal and network devices know the CSI-RS corresponding to each sub-setting, i.e., the CRI of each sub-setting, the terminal device does not need to report the CRI of each sub-setting. The present invention is not limited thereto, and other types of information may be omitted.

[0110] For example, the mapping order is: Sub-setting 1 RI > ... > Sub-setting N RI > Sub-setting 1 Wideband CQI > ... > Sub-setting N Wideband CQI > Sub-setting 1 Subband differential CQI > ... > Sub-setting N Subband differential CQI > Sub-setting 1 coefficient information > ... > Sub-setting N coefficient information.

[0111] For example, the mapping order is: Sub-setting 1 RI > Sub-setting 1 Wideband CQI > Sub-setting 1 Subband differential CQI > Sub-setting 1 coefficient information > Sub-setting 2 RI > Sub-setting 2 Wideband CQI > Sub-setting 2 Subband differential CQI > Sub-setting 2 coefficient information > ... > Sub-setting N RI > Sub-setting N Wideband CQI > Sub-setting N Subband differential CQI > Sub-setting N coefficient information.

[0112] For example, the mapping order is: Sub-setting 1 RI > Sub-setting 1 Wideband CQI > Sub-setting 1 Subband differential CQI > Sub-setting 1 coefficient information > Sub-setting 2 RI > ... > Sub-setting N RI > Sub-setting 2 Wideband CQI > ... > Sub-setting N Wideband CQI > Sub-setting 2 Subband differential CQI > ... > Sub-setting N Subband differential CQI > Sub-setting 2 coefficient information > ... > Sub-setting N coefficient information.

[0113] The above provides illustrative examples of cases where some information is omitted; the following section explains cases where some information is differential information.

[0114] In some embodiments, the wideband CQI corresponding to the N sub-settings includes the wideband CQI corresponding to the previous M sub-settings, and the wideband CQI corresponding to the remaining NM sub-settings is the difference CQI relative to the wideband CQI corresponding to at least one of the previous M sub-settings.

[0115] For example, the CQI for sub-setting 1 is reported normally, while the CQI for some or all of sub-settings 2 through N are differential CQIs relative to sub-setting 1. For example, based on Tables 11 through 16, the CQI for sub-setting 1 is reported normally, while the CQIs for sub-settings 2 through N are reported as differential CQIs. Specifically, the differential wideband CQ for sub-setting 2 is the differential CQI relative to the wideband CQI for sub-setting 1, and the same process is applied to sub-settings 3 through N.

[0116] The above provides an illustrative explanation of the CSI domain mapping in CSI Part 1, and the various embodiments described above can be combined with each other.

[0117] For example, the mapping order is: Sub-setting 1 CRI > ... > Sub-setting N CRI > Sub-setting 1 RI > ... > Sub-setting N RI > Sub-setting 1 Wideband CQI > Sub-setting 2 differential Wideband CQI > ... > Sub-setting N differential Wideband CQI > Sub-setting 1 Subband differential CQI > ... > Sub-setting N Subband differential CQI > Sub-setting 1 coefficient information > ... > Sub-setting N coefficient information.

[0118] For example, the mapping order is: Sub-setting 1 CRI > Sub-setting 1 RI > Sub-setting 1 Wideband CQI > Sub-setting 1 Subband differential CQI > Sub-setting 1 coefficient information > Sub-setting 2 CRI > Sub-setting 2 RI > Sub-setting 2 differential Wideband CQI > Sub-setting 2 Subband differential CQI > Sub-setting 2 coefficient information > ... > Sub-setting N CRI > Sub-setting N RI > Sub-setting N differential Wideband CQI > ... > Sub-setting N Subband differential CQI > Sub-setting N coefficient information.

[0119] For example, the mapping order is: Sub-setting 1 CRI > Sub-setting 1 RI > Sub-setting 1 Wideband CQI > Sub-setting 1 Subband differential CQI > Sub-setting 1 coefficient information > Sub-setting 2 CRI > ... > Sub-setting N CRI > Sub-setting 2 RI > ... > Sub-setting N RI > Sub-setting 2 differential Wideband CQI > ... > Sub-setting N differential Wideband CQI > Sub-setting 1 Subband differential CQI > ... > Sub-setting N Subband differential CQI > Sub-setting 2 coefficient information > ... > Sub-setting N coefficient information.

[0120] In some embodiments, one or more information types may be omitted, some CQIs may be differential CQIs, for example, all CRIs for sub-settings 1 to N may not be reported, the CQI for sub-setting 1 may be reported normally, and some or all of the CQIs for sub-settings 2 to N may be differential CQIs with respect to sub-setting 1.

[0121] For example, the mapping order is: Sub-setting 1 RI > ... > Sub-setting N RI > Sub-setting 1 Wideband CQI > Sub-setting 2 differential Wideband CQI > ... > Sub-setting N differential Wideband CQI > Sub-setting 1 Subband differential CQI > ... > Sub-setting N Subband differential CQI > Sub-setting 1 coefficient information > ... > Sub-setting N coefficient information.

[0122] For example, the mapping order is: Sub-setting 1 RI > Sub-setting 1 Wideband CQI > Sub-setting 1 Subband differential CQI > Sub-setting 1 coefficient information > Sub-setting 2 RI > Sub-setting 2 differential Wideband CQI > Sub-setting 2 Subband differential CQI > Sub-setting 2 coefficient information > ... > Sub-setting N RI > Sub-setting N differential Wideband CQI > ... > Sub-setting N Subband differential CQI > Sub-setting N coefficient information.

[0123] For example, the mapping order is: Sub-setting 1 RI > Sub-setting 1 Wideband CQI > Sub-setting 1 Subband differential CQI > Sub-setting 1 coefficient information > Sub-setting 2 RI > ... > Sub-setting N RI > Sub-setting 2 differential Wideband CQI > ... > Sub-setting N differential Wideband CQI > Sub-setting 1 Subband differential CQI > ... > Sub-setting N Subband differential CQI > Sub-setting 2 coefficient information > ... > Sub-setting N coefficient information.

[0124] In the above embodiment, the CRIs of sub-settings 1 to N are all omitted and not reported, the RIs of sub-settings 1 to N are reported normally, the CQI of sub-setting 1 is reported normally, and the difference CQIs of sub-settings 2 to N are reported relative to the CQI of sub-setting 1.

[0125] In addition, in some embodiments, the CRIs of sub-settings 1 to N are all omitted and not reported, the RI of sub-setting 1 is reported normally, the RIs of sub-settings 2 to N are omitted and not reported, the CQI of sub-setting 1 is reported normally, and the difference CQIs of sub-settings 2 to N relative to the CQI of sub-setting 1 are reported.

[0126] In some embodiments, the CRI for sub-setting 1 is reported normally, the CRIs for sub-settings 2 to N are omitted and not reported, the RIs for sub-settings 1 to N are reported normally, the CQI for sub-setting 1 is reported normally, and the difference CQIs for sub-settings 2 to N are reported relative to the CQI of sub-setting 1.

[0127] In some embodiments, the CRI for sub-setting 1 is reported normally, while the CRIs for sub-settings 2 to N are omitted and not reported; the RI for sub-setting 1 is reported normally, while the RIs for sub-settings 2 to N are omitted and not reported; the CQI for sub-setting 1 is reported normally, while the difference CQIs for sub-settings 2 to N are reported relative to the CQI of sub-setting 1.

[0128] The above provides an illustrative explanation of CSI area mapping in CSI Part 1, but the present invention is not limited thereto. In the above example, for the sake of explanation, the coefficient information for each sub-setting has been omitted, and in other embodiments, this coefficient information can be mapped at an appropriate location.

[0129] This allows terminal devices to report CSI information based on CSI reporting area information, bit width, and CSI area mapping order, enabling network devices to accurately receive and demodulate multi-CSI CSI part 1 information.

[0130] The following describes the CSI area mapping for CSI Part 2. CSI Part 2 may contain several pieces of primary information.

[0131] In some embodiments, in the bandwidth of the second part of the CSI, the CSI area mapping order is as follows: mapping is performed to the second information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, and mapping is performed to the second information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0132] In some embodiments, the first part of the CSI contains only the first information of the preceding L sub-settings, and the first information of the following NL sub-settings is contained within the bandwidth of the second part of the CSI. Within the bandwidth of the second part of the CSI, the CSI area mapping order is as follows: mapping is performed to the first information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index; mapping is performed to the second information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index; and mapping is performed to the second information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0133] In some embodiments, the first part of the CSI contains only the first information of the preceding L sub-settings, and the first information of the following NL sub-settings is contained within the bandwidth of the second part of the CSI. Within the bandwidth of the second part of the CSI, the CSI area mapping order is as follows: mapping is performed to the second information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index; mapping is performed to the first information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index; and mapping is performed to the second information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0134] In some embodiments, the second information for a sub-configuration includes at least one of the following: namely, the bandwidth CQI of the second transmission block (TB) corresponding to the sub-configuration, the LI corresponding to the sub-configuration, the PMI first bandwidth information area corresponding to the sub-configuration, and the PMI second bandwidth information area or codebook index corresponding to the sub-configuration.

[0135] For example, similar to CSI Part1, the mapping of N sub-settings for CSI Part2 bandwidth may also be divided into two parts, and mapping may be performed using mapping method A and mapping method B, respectively. Mapping method A first sorts according to the information type, and then sorts according to the sub-settings within each information type, while mapping method B first sorts according to the sub-settings, and then sorts according to the information type within each sub-setting.

[0136] In some embodiments, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index in the bandwidth of the second part of the CSI (corresponding to mapping method A) includes the following: Mapping is performed to CSI-RS resource instructions (CRIs) corresponding to zero or one or more of the subsequent NL sub-settings in ascending order of the sub-setting index; Mapping is performed to rank indicators corresponding to zero or one or more of the subsequent NL sub-settings in ascending order of the sub-setting index; Mapping is performed on the bandwidth CQI (wideband CQI) corresponding to zero or one or more of the subsequent NL sub-settings in ascending order of the sub-setting index; Mapping is performed for subband differential CQIs corresponding to zero or one or more of the subsequent NL sub-settings in ascending order of the sub-setting index; and The coefficient information corresponding to zero or one or more of the subsequent NL sub-settings is mapped according to the ascending order of the sub-setting index.

[0137] In some embodiments, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index in the bandwidth of the second part of the CSI (corresponding to mapping method B) includes the following: The first information corresponding to NL sub-settings is mapped according to the sub-settings in ascending order of the sub-setting index, and the first information of each sub-setting is mapped in the following order: namely, the CRI corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the wideband CQI corresponding to the sub-setting, the subband differential CQI corresponding to the sub-setting, and the coefficient information corresponding to the sub-setting.

[0138] In some embodiments, mapping the second part of the CSI bandwidth to the second information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index (corresponding to mapping method A) includes the following: Map the bandwidth CQI of the second transmission block (TB) corresponding to L sub-settings in ascending order of the sub-setting index; Map the layer indicators (LI) corresponding to L sub-settings in ascending order of the sub-setting index; Map the PMI first bandwidth information area corresponding to L sub-settings in ascending order of the sub-setting index; and The PMI second bandwidth information area or codebook index is mapped to L sub-settings in ascending order of the sub-setting index.

[0139] In some embodiments, mapping the second part of the CSI bandwidth to the second information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index (corresponding to mapping method B) includes the following: Secondary information corresponding to L sub-settings is mapped according to each sub-setting in ascending order of the sub-setting index, and the secondary information for each sub-setting is mapped in the following order: namely, the bandwidth CQI of the second transmission block (TB) corresponding to the sub-setting, the LI corresponding to the sub-setting, the PMI first bandwidth information area corresponding to the sub-setting, and the PMI second bandwidth information area or codebook index corresponding to the sub-setting.

[0140] In some embodiments, mapping the second part of the CSI bandwidth to the second information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index (corresponding to mapping method A) includes the following: The bandwidth CQI of the second transmission block (TB) corresponding to the next NL sub-settings is mapped according to the ascending order of the sub-setting index; Map the layer indicators (LIs) corresponding to the next NL sub-settings in ascending order of the sub-setting index; The PMI first bandwidth information area is mapped to the next NL sub-settings in ascending order of the sub-setting index; and The PMI second bandwidth information area or codebook index is mapped to the next NL sub-settings in ascending order of the sub-setting index.

[0141] In some embodiments, mapping the second part of the CSI bandwidth to the second information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index (corresponding to mapping method B) includes the following: Secondary information corresponding to L sub-settings is mapped according to each sub-setting in ascending order of the sub-setting index, and the secondary information for each sub-setting is mapped in the following order: namely, the bandwidth CQI of the second transmission block (TB) corresponding to the sub-setting, the LI corresponding to the sub-setting, the PMI first bandwidth information area corresponding to the sub-setting, and the PMI second bandwidth information area or codebook index corresponding to the sub-setting.

[0142] For example, the bandwidth of the second part of the CSI includes only the second TB bandwidth CQI, LI, and PMI of sub-settings 1 to N, and does not include the first information of the subsequent NL sub-settings.

[0143] Table 17 shows one example of CSI band mapping for CSI Part2 bandwidth, where L=N, only the preceding portion exists, the preceding portion is entirely sub-configuration, and mapping method A is used.

[0144] [Table 17] As shown in Table 17, the second TB bandwidth CQI of sub-setting 1, ..., > second TB bandwidth CQI of sub-setting N > LI of sub-setting 1, ..., > LI of sub-setting N > PMI bandwidth information area X1 of sub-setting 1, ..., > PMI bandwidth information area X1 of sub-setting N > PMI bandwidth information area X2 of sub-setting 1, ..., > PMI bandwidth information area X2 of sub-setting N.

[0145] Table 18 shows one example of CSI band mapping for CSI Part2 bandwidth, taking the example where L=1 and mapping method B is used for all of the preceding portion (L sub-settings) and succeeding portion (NL sub-settings), or taking the example where L=N and there is only a preceding portion, and the preceding portion consists entirely of sub-settings and mapping method B is used.

[0146] [Table 18] As shown in Table 18, the bandwidth CQI of the second TB of sub-setting 1 > LI of sub-setting 1 > PMI bandwidth information area X1 of sub-setting 1 > PMI bandwidth information area X2 of sub-setting 1 > ... > bandwidth CQI of the second TB of sub-setting N > LI of sub-setting N > PMI bandwidth information area X1 of sub-setting N > PMI bandwidth information area X2 of sub-setting N.

[0147] Table 19 shows one example of CSI band mapping for CSI Part2 bandwidth, where L=1 and mapping method A is used for all parts, both the preceding (L sub-settings) and succeeding (NL sub-settings).

[0148] [Table 19] As shown in Table 19, the order is: Sub-setting 1's second TB bandwidth CQI > Sub-setting 1's LI > Sub-setting 1's PMI bandwidth information area X1 > Sub-setting 1's PMI bandwidth information area X2 > Sub-setting 2's second TB bandwidth CQI >, ..., Sub-setting N's second TB bandwidth CQI > Sub-setting 2's LI >, ..., > Sub-setting N's LI > Sub-setting 2's PMI bandwidth information area X1 >, ..., > Sub-setting N's PMI bandwidth information area X1 > Sub-setting 2's PMI bandwidth information area X2 > Sub-setting N's PMI bandwidth information area X2.

[0149] The above is an illustrative example of a complete report of all information (without CSI overhead reduction), and some information may be omitted.

[0150] In some embodiments, the PMI first bandwidth information area corresponding to the N sub-settings includes the PMI first bandwidth information area corresponding to the previous M sub-settings, and the PMI first bandwidth information area corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The PMI second bandwidth information area or codebook index corresponding to the aforementioned N sub-settings includes the PMI second bandwidth information area or codebook index corresponding to the previous M sub-settings, while the PMI second bandwidth information area or codebook index corresponding to the remaining NM sub-settings is omitted.

[0151] In these embodiments, the PMI information corresponding to NM sub-settings of a sub-setting is the same as the PMI corresponding to one of the previous M sub-settings, or the network device can derive the PMI information corresponding to NM sub-settings of a sub-setting from the PMI corresponding to one of the previous M sub-settings, so it does not need to be omitted and reported.

[0152] Table 20 shows one example of CSI bandwidth mapping for CSI Part2 bandwidth, where L=N, only the preceding portion exists, the preceding portion consists entirely of sub-configurations, and mapping method A is used. In this example, the PMIs for sub-configurations 2 through N are omitted and not reported.

[0153] [Table 20] As shown in Table 20, the PMI for sub-settings 2 to N is omitted and not reported, and the CSI area mapping order for CSI Part2 wideband is: second TB bandwidth CQI of sub-setting 1 >, ..., > second TB bandwidth CQI of sub-setting N > LI of sub-setting 1 >, ..., > LI of sub-setting N > PMI bandwidth information area X1 of sub-setting 1 > PMI bandwidth information area X2 of sub-setting 1.

[0154] Table 21 shows one example of CSI band mapping for CSI Part2 bandwidth, taking the example where L=1 and mapping method B is used for all of the preceding portion (L sub-settings) and succeeding portion (NL sub-settings), or taking the example where L=N and there is only a preceding portion, and the preceding portion consists entirely of sub-settings and mapping method B is used.

[0155] [Table 21] As shown in Table 21, the order is: Sub-setting 1's second TB bandwidth CQI > Sub-setting 1's LI > Sub-setting 1's PMI bandwidth information area X1 > Sub-setting 1's PMI bandwidth information area X2 > Sub-setting 2's second TB bandwidth CQI > Sub-setting 2's LI > ... > Sub-setting N's second TB bandwidth CQI > Sub-setting N's LI.

[0156] Table 22 shows one example of CSI band mapping for CSI Part2 bandwidth, where L=1 and mapping method A is used for the preceding portion (L sub-settings) and the succeeding portion (NL sub-settings).

[0157] [Table 22] As shown in Table 22, the bandwidth CQI of the second TB of sub-setting 1 > LI of sub-setting 1 > PMI bandwidth information area X1 of sub-setting 1 > PMI bandwidth information area X2 of sub-setting 1 > bandwidth CQI of the second TB of sub-setting 2 > ..., bandwidth CQI of the second TB of sub-setting N > LI of sub-setting 2 > ..., > LI of sub-setting N.

[0158] In some embodiments, the first part of the CSI contains only the first information of the previous L sub-settings, and the first information of the subsequent NL sub-settings is contained within the bandwidth of the second part of the CSI. Within the bandwidth of the second part of the CSI, the CSI area mapping order includes the following: mapping to the first information corresponding to NL sub-settings out of N sub-settings in ascending order of the sub-setting index; mapping to the second information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index; and mapping to the second information corresponding to NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0159] In some embodiments, the first part of the CSI contains only the first information of the previous L sub-settings, and the first information of the subsequent NL sub-settings is contained within the bandwidth of the second part of the CSI. Within the bandwidth of the second part of the CSI, the CSI area mapping order is performed by mapping to the second information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index, mapping to the first information corresponding to NL sub-settings out of N sub-settings in ascending order of the sub-setting index, and mapping to the second information corresponding to NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0160] Table 23 shows another example of CSI area mapping for the CSI Part 2 bandwidth. In the bandwidth of the second part of the CSI, mapping is first performed to the first information corresponding to 2 to N sub-settings in ascending order of the sub-setting index, and then mapping is performed to the second information corresponding to 1 to N sub-settings in ascending order of the sub-setting index.

[0161] [Table 23] As shown in Table 23, the first information of sub-settings 2 to N is mapped according to mapping method A and / or mapping method B, the mapping order of the second information of sub-settings 1 to N is mapped using the three mapping methods shown in Tables 14, 15, and 16, and then the final mapping order can be formed by combining the selected mapping methods.

[0162] As shown in Table 23, the bandwidth of the second part of the CSI includes the CRI / RI / first TB bandwidth CQI for sub-settings 2 to N and the second TB bandwidth CQI / LI / PMI for sub-settings 1 to N. In other words, the first part of the CSI contains only the CSI information for sub-setting 1, and all the CSI information for sub-settings 2 to N is placed in the bandwidth of the second part of the CSI.

[0163] As shown in Table 23, the CRI and / or RI and / or bandwidth CQI information for sub-settings 2 to N may be omitted and not reported, and the bandwidth CQI for the first TB in sub-settings 2 to N may be the difference CQI relative to the bandwidth CQI of the first TB in sub-setting 1. The PMI for sub-settings 2 to N may be omitted and not reported.

[0164] Table 24 shows another example of CSI area mapping for the bandwidth of the second part of the CSI. For the bandwidth of the second part of the CSI, mapping is first performed to the second information of sub-setting 1, then to the first information corresponding to 2 to N sub-settings of the sub-setting in ascending order of the sub-setting index, and then to the second information corresponding to 2 to N sub-settings of the sub-setting in ascending order of the sub-setting index.

[0165] [Table 24] As shown in Table 24, the first information of sub-settings 2 to N is mapped according to mapping method A and / or mapping method B, and the mapping order of the second information of sub-settings 2 to N is also mapped according to mapping method A and / or mapping method B. After that, the selected mapping methods can be combined to form the final mapping order.

[0166] As shown in Table 24, the bandwidth of the second part of the CSI includes the CRI / RI / first TB bandwidth CQI for sub-settings 2 to sub-settings and the second TB bandwidth CQI / LI / PMI for sub-settings 1 to sub-settings N. In other words, the first part of the CSI contains only the CSI information for sub-setting 1, and all the CSI information for sub-settings 2 to sub-settings N is placed in the bandwidth of the second part of the CSI.

[0167] As shown in Table 24, the CRI and / or RI and / or bandwidth CQI information for sub-settings 2 to N may be omitted and not reported, and the bandwidth CQI for the first TB of sub-settings 2 to N may be the difference CQI relative to the bandwidth CQI of the first TB of sub-setting 1. The PMI for sub-settings 2 to N may be omitted and not reported.

[0168] This allows terminal devices to report CSI information based on CSI area reporting information, bit width, and CSI area mapping order, enabling network devices to accurately receive and demodulate bandwidth information for the second part of the CSI in a multi-CSI configuration.

[0169] The above provides an illustrative example of CSI band mapping for the CSI Part 2 bandwidth, but the present invention is not limited thereto. The following describes CSI band mapping for CSI Part 2 subbands.

[0170] In some embodiments, the CSI area mapping order in the subband of the second part of the CSI is as follows: The subband difference CQI of the second transmission block (TB) is mapped according to the ascending order of the sub-setting index, and the even number of subbands corresponding to the N sub-settings are arranged according to the ascending order of the sub-setting index; Maps PMI subband information or codebook index, which is arranged in ascending order of an even number of subbands corresponding to N sub-settings according to the ascending order of the sub-setting index; Mapping the subband difference CQI of the second transmission block (TB) which is arranged in ascending order of odd subbands corresponding to N sub-settings according to the ascending order of the sub-setting index; and This maps PMI subband information or a codebook index, which is arranged in ascending order of odd subbands corresponding to N sub-settings, according to the ascending order of the sub-setting index.

[0171] In some embodiments, the CSI area mapping order in the subband of the second part of the CSI is as follows: Third-party information corresponding to N sub-settings is mapped according to each sub-setting in the ascending order of the sub-setting index, and for each sub-setting's third-party information, the mapping is performed in the following order: namely, the subband difference CQI of the second transmission block (TB) arranged in ascending order of even subbands corresponding to the sub-setting, the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the sub-setting, the subband difference CQI of the second transmission block (TB) arranged in ascending order of odd subbands corresponding to the sub-setting, and the PMI subband information or codebook index arranged in ascending order of odd subbands corresponding to the sub-setting.

[0172] In some embodiments, the third information corresponding to a sub-setting includes at least one of the following: subband difference CQIs of the second transmission block (TB) arranged in ascending order of even subbands corresponding to the sub-setting; PMI subband information or a codebook index arranged in ascending order of even subbands corresponding to the sub-setting; subband difference CQIs of the second transmission block (TB) arranged in ascending order of odd subbands corresponding to the sub-setting; and PMI subband information or a codebook index arranged in ascending order of odd subbands corresponding to the sub-setting.

[0173] Table 25 shows one example of CSI area mapping for the CSI Part 2 subband.

[0174] [Table 25] As shown in Table 25, the CSI area mapping order for the CSI Part2 subband is as follows: Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > PMI subband information X2 or 2-port codebook index>, ..., > PMI subband information X2 or 2-port codebook index>, ..., > PMI subband information X2 or 2-port codebook index>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > PMI subband information X2 or 2-port codebook index>, ..., > PMI subband information X2 or 2-port codebook index>, ..., > PMI subband information X2 or 2-port codebook index>, ..., > PMI subband information X2 or 2-port codebook index>, ..., > PMI subband information X2 or 2-port codebook index>, ..., > PMI subband information X2 or 2-port codebook index>

[0175] Table 26 shows another example of CSI area mapping for the CSI Part 2 subband.

[0176] [Table 26] As shown in Table 26, the CSI area mapping order for the CSI Part2 subband is: Second TB subband difference CQI arranged in ascending order of even subbands of Sub-Setting 1 > PMI subband information X2 or 2-port codebook index arranged in ascending order of even subbands of Sub-Setting 1 > Second TB subband difference CQI arranged in ascending order of odd subbands of Sub-Setting 1 > PMI subband information X2 or 2-port codebook index arranged in ascending order of odd subbands of Sub-Setting 1 > ... > Second TB subband difference CQI arranged in ascending order of even subbands of Sub-Setting N > PMI subband information X2 or 2-port codebook index arranged in ascending order of even subbands of Sub-Setting N > Second TB subband difference CQI arranged in ascending order of odd subbands of Sub-Setting N > PMI subband information X2 or 2-port codebook index arranged in ascending order of odd subbands of Sub-Setting N.

[0177] The above provides an illustrative example of the case without CSI overhead reduction, and some information may be omitted.

[0178] In some embodiments, the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the N sub-settings includes the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the previous M sub-settings, and the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the aforementioned N sub-settings, includes the PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the previous M sub-settings, while the PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the remaining NM sub-settings, is omitted.

[0179] For example, in CSI part2 suband, PMIs for sub-settings 2 through N are omitted and not reported.

[0180] Table 27 shows another example of CSI area mapping for the CSI Part 2 subband.

[0181] [Table 27] As shown in Table 27, the CSI area mapping order for the CSI Part2 subband is as follows: Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>, ..., > Second TB subband difference CQI>

[0182] Table 28 shows another example of CSI area mapping for the CSI Part 2 subband.

[0183] [Table 28] As shown in Table 28, the CSI area mapping order for the CSI Part2 subband is: Second TB subband difference CQI arranged in ascending order of even subbands of Sub-Setting 1 > PMI subband information X2 or 2-port codebook index arranged in ascending order of even subbands of Sub-Setting 1 > Second TB subband difference CQI arranged in ascending order of odd subbands of Sub-Setting 1 > PMI subband information X2 or 2-port codebook index arranged in ascending order of odd subbands of Sub-Setting 1 > Second TB subband difference CQI arranged in ascending order of even subbands of Sub-Setting 2 > Second TB subband difference CQI arranged in ascending order of odd subbands of Sub-Setting 2 > ... > Second TB subband difference CQI arranged in ascending order of even subbands of Sub-Setting N > Second TB subband difference CQI arranged in ascending order of odd subbands of Sub-Setting N.

[0184] The above illustrates the CSI band mapping of the CSI Part 2 subband, but the present invention is not limited thereto.

[0185] This allows terminal devices to report CSI information according to the CSI area reporting area information, bit width, and CSI area mapping order, enabling network devices to accurately receive and demodulate multi-CSI CSI part 2 subband information.

[0186] The above exemplifies the CSI area mapping in PUCCH-based CSI reports. Below, we will further explain CSI area mapping using PUCCH-based CSI reports as an example.

[0187] In some embodiments, in a bandwidth CSI, the CSI area mapping order is to map to the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0188] In some embodiments, the first information corresponding to a sub-configuration includes at least one of the following: a CSI-RS resource indicator (CRI) corresponding to the sub-configuration, a rank indicator (L) corresponding to the sub-configuration, a layer indicator (LI) corresponding to the sub-configuration, PMI bandwidth information corresponding to the sub-configuration, a wideband CQI (CQI) for the bandwidth of the first transmission block (TB) corresponding to the sub-configuration, and a wideband CQI (CQI) for the bandwidth of the second transmission block (TB) corresponding to the sub-configuration.

[0189] For example, a mapping could be performed to the first information corresponding to a few previous sub-settings, in ascending order of the sub-setting index.

[0190] Table 29 shows one example of CSI area mapping for bandwidth CSI.

[0191] [Table 29] As shown in Table 29, the order is: Sub-setting 1 CRI > Sub-setting 1 RI > Sub-setting 1 LI > Sub-setting 1 PMI wideband information fields X1 > Sub-setting 1 PMI wideband information fields X2 > Sub-setting 1 wideband CQI for the first TB > Sub-setting 1 wideband CQI for the first TB. CSI Part 1 contains only the CSI information for Sub-setting 1, while the information for Sub-settings 2 to N is included in CSI Part 2.

[0192] In some embodiments, in a bandwidth CSI, the CSI area mapping order includes mapping to the first information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, and mapping to the first information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0193] For example, the mapping of N sub-settings can be divided into two parts: the first part consists of L sub-settings, and the second part consists of NL sub-settings, which are mapped using mapping method A and mapping method B, respectively. Mapping method A first sorts according to the information type, and then sorts each information type according to the sub-settings, while mapping method B first sorts according to the sub-settings, and then sorts each sub-setting according to the information type.

[0194] In some embodiments, mapping the first information corresponding to N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed to CSI-RS resource instructions (CRIs) corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed to rank indicators corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed for layer indicators (LIs) corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed on PMI bandwidth information corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed for the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to zero or one or more sub-settings out of L sub-settings in ascending order of the sub-setting index; and The bandwidth CQI (wideband CQI) of the second transmission block (TB) corresponding to zero or one or more of the L sub-settings is mapped according to the ascending order of the sub-setting index.

[0195] In these embodiments, for example, mapping is performed first to the CRI of L sub-configurations, then to the RI of L sub-configurations, then to the LI of L sub-configurations, then to the PMI bandwidth information of L sub-configurations, then to the first TB bandwidth CQI of L sub-configurations, and finally to the second TB bandwidth CQI of L sub-configurations. If one or more of these pieces of information are not reported, the mapping may be omitted. Such a mapping method may be referred to as mapping method A.

[0196] In some embodiments, mapping the first information corresponding to N sub-settings in ascending order of the sub-setting index includes the following: The first information corresponding to L sub-settings is mapped according to the sub-settings in ascending order of the sub-setting index, and the first information of each sub-setting is mapped in the following order: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the layer indicator (LI) corresponding to the sub-setting, the PMI bandwidth information corresponding to the sub-setting, the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to the sub-setting, and the bandwidth CQI (wideband CQI) of the second transmission block (TB) corresponding to the sub-setting.

[0197] In these embodiments, for example, mapping is first performed to the CRI, RI, LI, PMI bandwidth, first TB bandwidth CQI, and second TB bandwidth CQI of the first sub-configuration, then to the CRI, RI, LI, PMI bandwidth, first TB bandwidth CQI, and second TB bandwidth CQI of the second sub-configuration, ..., and finally to the CRI, RI, LI, PMI bandwidth, first TB bandwidth CQI, and second TB bandwidth CQI of the Lth sub-configuration. If one or more of these pieces of information are not reported, the mapping may be omitted. Such a mapping method may be referred to as mapping method B.

[0198] Table 30 shows one example of CSI area mapping for bandwidth CSI, where L=N, there is only the front part, the front part is all sub-settings, and mapping method A is used.

[0199] [Table 30] ... As shown in Table 30, the CRI of sub-setting 1, ..., > CRI of sub-setting N > RI of sub-setting 1, ..., > RI of sub-setting N > LI of sub-setting 1, ..., > LI of sub-setting N > PMI bandwidth information of sub-setting 1, ..., > PMI bandwidth information of sub-setting N > Bandwidth CQI of the first TB of sub-setting 1, ..., > Bandwidth CQI of the first TB of sub-setting N > Bandwidth CQI of the second TB of sub-setting 1, ..., > Bandwidth CQI of the second TB of sub-setting N.

[0200] Table 31 shows one example of CSI area mapping for bandwidth CSI, taking the example where L=1 and mapping method B is used for all of the preceding portion (L sub-settings) and succeeding portion (NL sub-settings), or taking the example where L=N and there is only a preceding portion, and the preceding portion consists entirely of sub-settings and mapping method B is used.

[0201] [Table 31] As shown in Table 31, the order is: Sub-setting 1 CRI > Sub-setting 1 RI > Sub-setting 1 LI > Sub-setting 1 PMI bandwidth information > Sub-setting 1 first TB bandwidth CQI > Sub-setting 1 second TB bandwidth CQI > ... > Sub-setting N CRI > Sub-setting N RI > Sub-setting N LI > Sub-setting N PMI bandwidth information > Sub-setting N first TB bandwidth CQI > Sub-setting N second TB bandwidth CQI.

[0202] Table 32 shows one example of CSI domain mapping for CSI Part 1, where L=1, and mapping method B is used for the first part (L sub-settings) and mapping method A is used for the second part (NL sub-settings).

[0203] [Table 32] As shown in Table 32, the order is: Sub-setting 1 CRI > Sub-setting 1 RI > Sub-setting 1 LI > Sub-setting 1 PMI bandwidth information > Sub-setting 1 first TB bandwidth CQI > Sub-setting 1 second TB bandwidth CQI > Sub-setting 2 CRI >, ..., Sub-setting N CRI > Sub-setting 2 RI >, ..., > Sub-setting N RI > Sub-setting 2 LI >, ..., > Sub-setting N LI > Sub-setting 2 PMI bandwidth information >, ..., > Sub-setting N PMI bandwidth information > Sub-setting 2 first TB bandwidth CQI >, ..., > Sub-setting N first TB bandwidth CQI > Sub-setting 2 second TB bandwidth CQI > Sub-setting N second TB bandwidth CQI.

[0204] The above shows the case of complete reporting of all information (without CSI overhead reduction), and some information may be omitted.

[0205] In some embodiments, the CRI corresponding to the N sub-settings includes the CRI corresponding to the previous M sub-settings, and the CRI corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The rank indicators corresponding to the aforementioned N sub-settings include the rank indicators corresponding to the previous M sub-settings, and the rank indicators corresponding to the remaining NM sub-settings are omitted, where 1 ≤ M ≤ N; and / or The LIs corresponding to the N sub-settings include the LIs corresponding to the previous M sub-settings, and the LIs corresponding to the remaining NM sub-settings are omitted, of which 1 ≤ M ≤ N; and / or The PMI bandwidth corresponding to the aforementioned N sub-settings includes the PMI bandwidth corresponding to the previous M sub-settings, and the PMI bandwidth corresponding to the remaining NM sub-settings is omitted, of which 1 ≤ M ≤ N; and / or The coefficient information corresponding to the N sub-settings includes the bandwidth CQI of the first TB corresponding to the previous M sub-settings, while the bandwidth CQI of the first TB corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The coefficient information corresponding to the aforementioned N sub-settings includes the second TB bandwidth CQI corresponding to the previous M sub-settings, while the second TB bandwidth CQI corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N.

[0206] For example, the CRI / RI / CQI of sub-configuration M and the CRI / RI / CQI of sub-configuration 1 are the same, or network devices can derive the CRI / RI / CQI of sub-configuration M based on the CRI / RI / CQI of sub-configuration 1. Therefore, terminal devices only need to report the CRI / RI / PMI of sub-configuration 1, and the CRI / RI / CQI of sub-configuration M may be omitted from the report, provided that 1 ≤ M ≤ N.

[0207] The above provides an illustrative example of CSI range mapping for PUCCH-based bandwidth CSI, but the present invention is not limited thereto. For other modifications, refer to the case of PUCCH-based CSI range mapping.

[0208] The above explains cases where some information is omitted; below, we will explain cases where some information is differential information.

[0209] In some embodiments, the wideband CQI corresponding to the N sub-settings includes the wideband CQI corresponding to the previous M sub-settings, and the wideband CQI corresponding to the remaining NM sub-settings is the difference CQI relative to the wideband CQI corresponding to at least one of the previous M sub-settings.

[0210] For example, the CQI for sub-setting 1 is reported normally, while the CQI for some or all of sub-settings 2 through N are differential CQIs (differential CQIs) relative to sub-setting 1. Specifically, the differential wideband CQ for sub-setting 2 is the differential CQI relative to the wideband CQI for sub-setting 1, and the same process is performed for sub-settings 3 through N.

[0211] The following describes the CSI area mapping for PUCCH-based CSI Part 1.

[0212] In some embodiments, in the first part of the CSI, the CSI domain mapping order is to map to the first information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, and to map to the first information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0213] In some embodiments, the primary information for a sub-configuration includes at least one of the following: a CSI-RS resource indicator (CRI) corresponding to the sub-configuration, a rank indicator corresponding to the sub-configuration, a wideband CQI (CQI) for the first transmission block (TB) corresponding to the sub-configuration, and a subband differential CQI (CQI) for the first transmission block (TB) subband corresponding to the sub-configuration.

[0214] For example, similar to the bandwidth CSI, the mapping of N sub-settings for CSI Part1 can also be divided into two parts before and after, and each part performs mapping using mapping method A and mapping method B. Among them, mapping method A first sorts according to the information type, and then sorts according to the sub-settings in each information type. Mapping method B first sorts according to the sub-settings, and then sorts according to the information type in each sub-setting.

[0215] Table 33 shows an example of the CSI domain mapping of CSI Part1. Taking the case where L = N, there is only the previous part, and all of the previous part is sub-settings, and mapping method A is used as an example.

[0216]

Table 33

[0217]

[0217] Table 34 shows an example of the CSI domain mapping of CSI Part1. Taking the case where L = 1, and mapping method B is used for all of the previous part (L sub-settings) and the subsequent part (N - L sub-settings) as an example, or taking the case where L = N, there is only the previous part, and all of the previous part is sub-settings, and mapping method B is used as an example.

[0218]

Table 34

[0219] Table 35 shows an example of CSI domain mapping of CSI Part1, taking L = 1, and using mapping method B for the previous part (L sub - settings) and mapping method A for the subsequent part (N - L sub - settings) as an example.

[0220]

Table 35

[0221] Above, the case of a complete report of all information (without CSI overhead reduction) is shown, and some information may also be omitted.

[0222] [[ID=X]] In some embodiments, the CRI corresponding to the N sub - settings includes the CRI corresponding to the previous M sub - settings, and the CRI corresponding to the remaining N - M sub - settings is omitted, where \(1\leq M\leq N\); and / or the RI corresponding to the N sub - settings includes the RI corresponding to the previous M sub - settings, and the RI corresponding to the remaining N - M sub - settings is omitted; and / or The first TB bandwidth CQI corresponding to the N sub-settings includes the first TB bandwidth CQI corresponding to the previous M sub-settings, and the remaining NM sub-settings bandwidth CQI are omitted; and / or The subband difference CQI of the first TB corresponding to the N sub-settings includes the subband difference CQI of the first TB corresponding to the previous M sub-settings, while the subband difference CQI of the first TB corresponding to the remaining NM sub-settings is omitted.

[0223] The above provides an illustrative example of a PUCCH-based CSI part 1 CSI area mapping, but the present invention is not limited thereto. For other modifications, refer to the case of PUCCH-based CSI area mapping.

[0224] The above shows cases where some information is omitted, but below we will explain cases where some information is differential information.

[0225] In some embodiments, the wideband CQI corresponding to the N sub-settings includes the wideband CQI corresponding to the previous M sub-settings, and the wideband CQI corresponding to the remaining NM sub-settings is the difference CQI relative to the wideband CQI corresponding to at least one of the previous M sub-settings.

[0226] For example, the CQI for sub-setting 1 is reported normally, while the CQI for some or all of sub-settings 2 through N are differential CQIs relative to sub-setting 1. Specifically, the differential wideband CQ for sub-setting 2 is the differential CQI relative to the wideband CQI for sub-setting 1, and the same process is performed for sub-settings 3 through N.

[0227] The following describes the CSI area mapping of PUCCH-based CSI Part 2 bandwidth.

[0228] In some embodiments, in the bandwidth of the second part of the CSI, the CSI area mapping order is to map to the second information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, and to map to the second information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0229] In some embodiments, the first part of the CSI contains only the first information of the preceding L sub-settings, and the first information of the following NL sub-settings is contained within the bandwidth of the second part of the CSI. Within the bandwidth of the second part of the CSI, the CSI area mapping order is to map to the first information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, to map to the second information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, and to map to the second information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0230] In some embodiments, the first part of the CSI contains only the first information of the preceding L sub-settings, and the first information of the following NL sub-settings is contained within the bandwidth of the second part of the CSI. Within the bandwidth of the second part of the CSI, the CSI area mapping order is to map to the second information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, to map to the first information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, and to map to the second information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0231] In some embodiments, the second information for a sub-configuration includes at least one of the following: namely, the bandwidth CQI of the second transmission block (TB) corresponding to the sub-configuration, the LI corresponding to the sub-configuration, the PMI first bandwidth information area corresponding to the sub-configuration, and the PMI second bandwidth information area or codebook index corresponding to the sub-configuration.

[0232] For example, similar to CSI Part1, the mapping of N sub-settings for CSI Part2 bandwidth may also be divided into two parts, and mapping may be performed using mapping method A and mapping method B, respectively. Mapping method A first sorts according to the information type, and then sorts according to the sub-settings within each information type, while mapping method B first sorts according to the sub-settings, and then sorts according to the information type within each sub-setting.

[0233] The above is an illustrative example of the case without CSI overhead reduction, and some information may be omitted.

[0234] In some embodiments, the PMI first bandwidth information area corresponding to the N sub-settings includes the PMI first bandwidth information area corresponding to the previous M sub-settings, and the PMI first bandwidth information area corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The PMI second bandwidth information area or codebook index corresponding to the aforementioned N sub-settings includes the PMI second bandwidth information area or codebook index corresponding to the previous M sub-settings, while the PMI second bandwidth information area or codebook index corresponding to the remaining NM sub-settings is omitted.

[0235] In these embodiments, the PMI information corresponding to N - M sub - settings of the sub - settings is the same as the PMI corresponding to one of the previous M sub - settings, or the network device can derive the PMI information corresponding to N - M sub - settings of the sub - settings from the PMI corresponding to one of the previous M sub - settings. Therefore, it can be omitted and not reported.

[0236] In some embodiments, the first part of the CSI only includes the first information of the previous L sub - settings, and the first information of the subsequent N - L sub - settings is included in the bandwidth of the second part of the CSI. In the bandwidth of the second part of the CSI, the CSI domain mapping order is to map the first information corresponding to N - L sub - settings out of N sub - settings in ascending order of the sub - setting index, map the second information corresponding to the previous L sub - settings out of N sub - settings in ascending order of the sub - setting index, and map the second information corresponding to N - L sub - settings out of N sub - settings in ascending order of the sub - setting index, where 1 ≤ L ≤ N.

[0237] In some embodiments, the first part of the CSI only includes the first information of the previous L sub - settings, and the first information of the subsequent N - L sub - settings is included in the bandwidth of the second part of the CSI. In the bandwidth of the second part of the CSI, the CSI domain mapping order is to map the second information corresponding to the previous L sub - settings out of N sub - settings in ascending order of the sub - setting index, map the first information corresponding to N - L sub - settings out of N sub - settings in ascending order of the sub - setting index, and map the second information corresponding to N - L sub - settings out of N sub - settings in ascending order of the sub - setting index, where 1 ≤ L ≤ N.

[0238] Thereby, the terminal device can perform CSI reporting based on the CSI domain reporting domain information, bit width, and CSI domain mapping order, enabling the network device to accurately receive and demodulate the bandwidth information of the second part of the multi - CSI CSI.

[0239] The above describes the CSI bandwidth mapping of CSI Part 2, but the present invention is not limited thereto. For specific examples, refer to the aforementioned PUSCH-based bandwidth mapping, and a comprehensive list is omitted here.

[0240] The following describes the CSI area mapping of the subbands of CSI Part 2.

[0241] In some embodiments, in the subband of the second part of the CSI, the CSI area mapping order is: Mapping the subband difference CQI of the second transmission block (TB), which is arranged in ascending order of even subbands corresponding to N sub-settings according to the ascending order of the sub-setting index; Maps PMI subband information or codebook index, which is arranged in ascending order of an even number of subbands corresponding to N sub-settings according to the ascending order of the sub-setting index; Mapping the subband difference CQI of the second transmission block (TB) arranged in ascending order of the odd number of subbands corresponding to the N sub-settings mapped in ascending order of the sub-setting index; and This maps PMI subband information or a codebook index, which is arranged in ascending order of odd subbands corresponding to N sub-settings, according to the ascending order of the sub-setting index.

[0242] In some embodiments, in the subband of the second part of the CSI, the CSI area mapping order is: Third-party information corresponding to N sub-settings is mapped according to each sub-setting in the ascending order of the sub-setting index, and for each sub-setting's third-party information, the mapping is performed in the following order: namely, the subband difference CQI of the second transmission block (TB) arranged in ascending order of even subbands corresponding to the sub-setting, the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the sub-setting, the subband difference CQI of the second transmission block (TB) arranged in ascending order of odd subbands corresponding to the sub-setting, and the PMI subband information or codebook index arranged in ascending order of odd subbands corresponding to the sub-setting.

[0243] In some embodiments, the third information corresponding to a sub-setting includes at least one of the following: subband difference CQIs of the second transmission block (TB) arranged in ascending order of even subbands corresponding to the sub-setting; PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the sub-setting; subband difference CQIs of the second transmission block (TB) arranged in ascending order of odd subbands corresponding to the sub-setting; and PMI subband information or codebook index arranged in ascending order of odd subbands corresponding to the sub-setting.

[0244] The above is an illustrative example of the case without CSI overhead reduction, and some information may be omitted.

[0245] In some embodiments, the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the N sub-settings includes the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the previous M sub-settings, and the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the aforementioned N sub-settings, includes the PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the previous M sub-settings, while the PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the remaining NM sub-settings, is omitted.

[0246] The above provides an illustrative example of CSI band mapping for subbands of CSI Part 2, but the present invention is not limited thereto. For specific examples, refer to the aforementioned PUSCH-based band mapping, which will not be explained in detail here.

[0247] This allows terminal devices to report CSI information based on CSI area reporting information, bit width, and CSI area mapping order, enabling network devices to accurately receive and demodulate multi-CSI CSI part 2 subband information.

[0248] The embodiments described above are for illustrative purposes to illustrate embodiments of the present invention, but the present invention is not limited thereto, and appropriate modifications can be made based on the embodiments described above. For example, the embodiments described above can be used individually, or a combination of several of the embodiments described above can be used.

[0249] As can be seen from the above examples, even in several scenarios where wireless communication is applied (e.g., energy-saving mode), terminal devices can perform CSI mapping accurately, enabling accurate and efficient transmission of CSI reports, reducing the overhead of CSI reporting, and saving uplink resources.

[0250] <Example of the second aspect> In this embodiment of the present invention, differential CQIs will be described. The embodiment of the second aspect may be used in combination with the embodiment of the first aspect, or it may be implemented independently. Here, the same explanation as in the embodiment of the first aspect will be omitted.

[0251] The network energy saving technology supports that one CSI reporting setting includes L CSI sub-settings, each CSI sub-setting corresponds to one CSI, and each CSI corresponds to one spatial / energy domain adjustment mode. A terminal device can report N CSIs at one CSI reporting time, and each N CSI is associated with N CSI sub-settings in the L sub-settings.

[0252] To reduce the overhead and computational complexity of CSI reporting, one viable method for compressing (reducing) CSI overhead is to report CQI offsets or differential CQIs. A terminal device reports N CSIs at a single CSI reporting time, and CSIs include RI, PMI, and CQI, among others.

[0253] Taking CQI as an example, a terminal device reports S CQIs at one CSI reporting time, i.e., the 1st CQI, 2nd CQI, ..., the Sth CQI. The 1st CQI is a normal CQI report, and the 2nd CQI to the Nth CQI may be differential CQIs or CQI offsets relative to the 1st CQI.

[0254] For example, a terminal device reports four CQIs, each corresponding to a CSI-RS 32 port, 16 port, 8 port, and 4 port. The first CQI corresponds to port 32 and is a standard CQI, i.e., it represents a CQI index from 0 to 15 using 4 bits of information. The second to fourth CQIs correspond to ports 16, 8, and 4, respectively, and may use differential CQIs, i.e., differential CQIs relative to the first CQI. The first CQI is the reference CQI.

[0255] For example, the first differential CQI is defined as offset level(s) = M CQI index(s) - 1st CQI index, and of these, 1 <M<Nである。

[0256] In some embodiments, the differential CQI is X bits.

[0257] Taking X=1 as an example, the mapping table for the 1-bit first difference CQI value and the offset level may be shown in Table 36.

[0258] Table 36 shows "The mapping from the 2-bit differential CQI values ​​to the offset level is shown."

[0259] [Table 36] Furthermore, for example, a mapping table of the 1-bit first difference CQI value and offset level may be shown in Table 37.

[0260] [Table 37] In this case, P can be any real number such as 0, 1, 2, -1, -2, etc.

[0261] Taking X=2 as an example, the mapping table for the 2-bit first difference CQI value and the offset level may be shown in Table 38.

[0262] Table 38 shows "The mapping from the 2-bit differential CQI values ​​to the offset level is shown."

[0263] [Table 38] In embodiments of the present invention, the multi-CSI report is a CSI report reported by a terminal device at the reporting time, the CSI report includes multiple CSIs, and the differential CQI or CQI offset is the difference between the multiple CQIs, for example, the difference information from the second CQI to the last CQI relative to the first CQI.

[0264] This allows terminal devices to reduce the bit overhead and complexity of CSI calculations when reporting CSI reports, ensure accurate reception and demodulation of CSI information, improve the accuracy and completeness of reports for measurement, and guarantee data transmission performance.

[0265] <Example of the third side> In the embodiments of the present invention, the bit width of the CSI will be described. The embodiment of the third aspect may be used in combination with the embodiments of the first and second aspects, or it may be implemented independently. Here, the same explanation as in the embodiments of the first and second aspects will be omitted.

[0266] The terminal equipment reports a CSI report at the reporting time, and the CSI report includes a first CSI, a second CSI, ..., an Nth CSI, each corresponding to CSI sub-setting 1, sub-setting 2, ..., sub-setting N, i.e., corresponding to different spatial domain / energy domain adjustment modes. For example, if N=4, the first CSI (CSI of sub-setting 1) corresponds to a CSI-RS 32-port spatial domain adjustment mode, the second CSI (CSI of sub-setting 2) corresponds to a 16-port spatial domain adjustment mode, the third CSI (CSI of sub-setting 3) corresponds to an 8-port spatial domain adjustment mode, and the fourth CSI (CSI of sub-setting 4) corresponds to a 4-port spatial domain adjustment mode. Of these, the first CSI is the reference CSI (CSI baseline).

[0267] The following describes the bit widths of RI, LI, CQI, and CRI in sub-setting X, where 1 ≤ X ≤ N.

[0268] In some embodiments, the bit width of the RI in the sub-setting is, when there are two antenna ports,

[0269]

number

[0270]

number

[0271]

number

[0272] In some embodiments, when the bit width of the differential bandwidth CQI for the first TB in the sub-configuration is X and is greater than 4 antenna ports and rank is 5 to 8, the bit width of the differential bandwidth CQI for the second TB in the sub-configuration is X.

[0273] In some embodiments, the bit width of the CRI in the sub-setting is

[0274]

number

[0275] Table 39 shows one example of bit width in embodiments of the present invention.

[0276] [Table 39] As shown in Table 39, for example, n RI,NES This is the number of permitted RI values ​​for network energy saving / spatial energy domain element adjustment, and K NES This is the number of CSI-RS resources in the resource set related to network energy saving / spatial energy domain element adjustment. The bit width of CRI for sub-configuration X is,

[0277]

number

[0278] In this case, / indicates that the terminal device does not need to report the CRI. The terminal device has received the CSI-RS resource configuration, and the resource set may contain only one resource, or multiple resources, but the network device has instructed the terminal device on which resource index the terminal device needs to measure and report. In these cases, the terminal device does not need to report the CRI.

[0279] The bit width of the sub-setting X, "differential Wideband CQI for the first TB," is X, and you can refer to the embodiment on the second side. For example, X may be equal to 1, 2, or 3.

[0280] <Example of the fourth side> In the embodiments of the present invention, a method for mapping channel state information is provided and will be described from the perspective of network equipment. In the embodiments of the fourth aspect, descriptions of the same content as in the embodiments of the first to third aspects will be omitted.

[0281] Figure 3 shows a method for mapping channel state information in an embodiment of the present invention. As shown in Figure 3, the method includes the following, namely, 301: A network device transmits a Channel Status Information (CSI) reporting configuration, the Channel Status Information (CSI) reporting configuration is associated with K CSIs, the Channel Status Information (CSI) reporting configuration includes P subconfigurations, one of the P subconfigurations corresponds to at least one CSI, where 1 ≤ P ≤ K; and 302: The network device transmits instruction information, which is used to trigger (instruct / activate) N sub-settings out of the P sub-settings, where 1 ≤ N ≤ P; and the terminal device determines a CSI report based on the CSI area mapping order, of which the CSI report includes at least one CSI corresponding to the N sub-settings.

[0282] While Figure 3 above illustrates an example of the present invention, the invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or some operations can be appropriately increased or decreased. Those skilled in the art can make appropriate modifications based on the above description, without being limited to the description in Figure 3.

[0283] In some embodiments, after determining the CSI area information of the CSI report, the terminal device performs the CSI report at the CSI report time. As shown in Figure 3, the method may further include the following, namely, 303: Network equipment receives a CSI report.

[0284] The embodiments described above are for illustrative purposes to illustrate embodiments of the present invention, but the present invention is not limited thereto, and appropriate modifications can be made based on the embodiments described above. For example, the embodiments described above can be used individually, or a combination of several of the embodiments described above can be used.

[0285] As can be seen from the above examples, even in several scenarios where wireless communication is applied (e.g., energy-saving mode), terminal devices can perform CSI mapping accurately, enabling accurate and efficient transmission of CSI reports, reducing the overhead of CSI reporting, and saving uplink resources.

[0286] <Example of the fifth side> An embodiment of the present invention provides a channel state information mapping device. This device may be, for example, a terminal device, or one or more components or assemblies installed on a terminal device. Here, the same description as in the first to third embodiments is omitted.

[0287] Figure 4 shows a channel state information mapping device in an embodiment of the present invention. As shown in Figure 4, the channel state information mapping device 400 includes the following, namely, First receiving unit 401: receives a channel status information (CSI) reporting setting, the channel status information (CSI) reporting setting is associated with K CSIs, the channel status information (CSI) reporting setting includes P sub-settings, one of the P sub-settings corresponds to at least one CSI, and of which 1 ≤ P ≤ K; Second receiving unit 402: receives instruction information, which is used to trigger / instruct / activate N sub-settings out of the P sub-settings, where 1 ≤ N ≤ P; and Processing unit 403: Determines a CSI report based on the CSI area mapping order, the CSI report including at least one CSI corresponding to the N sub-settings.

[0288] In some embodiments, the sub-configuration includes one piece of information, namely, parameter N1; parameter N2; parameter Ng; codebook subset restriction; and port information, the port information being used to indicate a portion of the Channel Status Information Reference Signal (CSI-RS) resources associated with the Channel Status Information (CSI) reporting configuration.

[0289] The aforementioned sub-configurations are included in the sub-configuration information (sub-config) of the channel status information (CSI) reporting settings, or the codebook configuration information (codebook config) of the channel status information (CSI) reporting settings, or the parameter configuration information (N1-N2 config) of the channel status information (CSI) reporting settings.

[0290] In some embodiments, for a PUSCH-based CSI report, the CSI report includes the first part of the CSI, the bandwidth of the second part of the CSI, and the subband of the second part of the CSI; and for a PUCCH-based CSI report, the CSI report includes the bandwidth CSI, the first part of the CSI, the bandwidth of the second part of the CSI, and the subband of the second part of the CSI.

[0291] In the first part of the PUSCH-based CSI, or the first part of the PUSCH-based bandwidth CSI and / or the CSI, the CSI domain mapping order includes mapping to the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N; or In the first part of the PUSCH-based CSI, or the bandwidth CSI and / or the first part of the CSI, the CSI area mapping order includes mapping to first information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, and mapping to first information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N.

[0292] In some embodiments, the primary information corresponding to a sub-setting in PUSCH's CSI report includes at least one of the following: a CSI-RS resource indicator (CRI) corresponding to the sub-setting, a rank indicator corresponding to the sub-setting, a wideband CQI (CQI) for the first transmission block (TB) corresponding to the sub-setting, a subband differential CQI (CQI) corresponding to the sub-setting, and coefficient information corresponding to the sub-setting; or For PUCCH's CSI report, the primary information corresponding to a sub-configuration includes at least one of the following: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-configuration, the rank indicator corresponding to the sub-configuration, the layer indicator (LI) corresponding to the sub-configuration, the PMI bandwidth information corresponding to the sub-configuration, the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to the sub-configuration, and the bandwidth CQI (wideband CQI) of the second transmission block (TB) corresponding to the sub-configuration; or For PUCCH's CSI report, the primary information corresponding to a sub-configuration includes at least one of the following: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-configuration, the rank indicator corresponding to the sub-configuration, the wideband CQI of the first transmission block (TB) corresponding to the sub-configuration, and the subband differential CQI of the first transmission block (TB) corresponding to the sub-configuration.

[0293] In some embodiments, mapping PUSCH's CSI report to first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed to CSI-RS resource instructions (CRIs) corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed to rank indicators corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed for the bandwidth CQI (wideband CQI) corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed for subband differential CQIs corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; and The coefficient information corresponding to zero or one or more sub-settings is mapped according to the ascending order of the sub-setting index.

[0294] In some embodiments, mapping PUSCH's CSI report to first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed to CSI-RS resource instructions (CRIs) corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed to rank indicators corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed for layer indicators (LIs) corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed on PMI bandwidth information corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed to the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; and The bandwidth CQI (wideband CQI) of the second transmission block (TB) corresponding to zero or one or more sub-settings is mapped according to the ascending order of the sub-setting index.

[0295] In some embodiments, mapping PUSCH's CSI report to first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed to CSI-RS resource instructions (CRIs) corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed to rank indicators corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed to the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; and Mapping is performed for the first transmission block (TB) subband differential CQI corresponding to zero or one or more sub-settings in the ascending order of the sub-setting index.

[0296] In some embodiments, mapping PUSCH's CSI report to first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: The first information corresponding to at least some of the sub-settings is mapped according to each sub-setting in the ascending order of the sub-setting index, Of these, the first information for each sub-setting is mapped in the following order: namely, the CRI corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the wideband CQI corresponding to the sub-setting, the subband differential CQI corresponding to the sub-setting, and the coefficient information corresponding to the sub-setting.

[0297] In some embodiments, mapping PUCCH's CSI report to first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: The first information corresponding to at least some of the sub-settings is mapped according to each sub-setting in ascending order of the sub-setting index, and the first information of each sub-setting is mapped in the following order: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the layer indicator (LI) corresponding to the sub-setting, the PMI bandwidth information corresponding to the sub-setting, the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to the sub-setting, and the bandwidth CQI (wideband CQI) of the second transmission block (TB) corresponding to the sub-setting.

[0298] In some embodiments, mapping PUCCH's CSI report to first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: First information corresponding to at least some of the sub-settings is mapped according to each sub-setting in ascending order of the sub-setting index, and the first information of each sub-setting is mapped in the following order: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the wideband CQI of the first transmission block (TB) corresponding to the sub-setting, and the subband differential CQI of the first transmission block (TB) corresponding to the sub-setting.

[0299] In some embodiments, the CRI corresponding to the N sub-settings includes the CRI corresponding to the previous M sub-settings, and the CRI corresponding to the remaining NM sub-settings is omitted, of which 1 ≤ M ≤ N; and / or The rank indicators corresponding to the aforementioned N sub-settings include the rank indicators corresponding to the previous M sub-settings, and the rank indicators corresponding to the remaining NM sub-settings are omitted, where 1 ≤ M ≤ N; and / or The wideband CQI corresponding to the N sub-settings includes the wideband CQI corresponding to the previous M sub-settings, and the wideband CQI corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The subband differential CQIs corresponding to the N sub-settings include the subband differential CQIs corresponding to the previous M sub-settings, and the subband differential CQIs corresponding to the remaining NM sub-settings are omitted, where 1 ≤ M ≤ N; and / or The coefficient information corresponding to the aforementioned N sub-settings includes the coefficient information corresponding to the previous M sub-settings, while the coefficient information corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N.

[0300] In some embodiments, the wideband CQI corresponding to the N sub-settings includes the wideband CQI corresponding to the previous M sub-settings, and the wideband CQI corresponding to the remaining NM sub-settings is the difference CQI relative to the wideband CQI corresponding to at least one of the previous M sub-settings.

[0301] In some embodiments, for a PUSCH-based CSI report, the CSI report includes the first part of the CSI, the bandwidth of the second part of the CSI, and the subband of the second part of the CSI; and for a PUCCH-based CSI report, the CSI report includes the bandwidth CSI, the first part of the CSI, the bandwidth of the second part of the CSI, and the subband of the second part of the CSI.

[0302] In the bandwidth of the second part of the CSI, the CSI area mapping order includes mapping to the second information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, and mapping to the second information corresponding to the following NL sub-settings out of N sub-settings in ascending order of the sub-setting index, where 1 ≤ L ≤ N; or In the bandwidth of the second part of the CSI, the CSI area mapping order includes mapping to first information corresponding to the later NL sub-settings out of N sub-settings in ascending order of the sub-setting index, mapping to second information corresponding to the earlier L sub-settings out of N sub-settings in ascending order of the sub-setting index, and mapping to second information corresponding to the later NL sub-settings out of N sub-settings in ascending order of the sub-setting index, wherein 1 ≤ L ≤ N; or In the bandwidth of the second part of the CSI, the CSI area mapping order includes mapping to second information corresponding to the first L sub-settings out of N sub-settings in ascending order of the sub-setting index, mapping to first information corresponding to the next NL sub-settings out of N sub-settings in ascending order of the sub-setting index, and mapping to second information corresponding to the next NL sub-settings out of N sub-settings in ascending order of the sub-setting index, wherein 1 ≤ L ≤ N.

[0303] In some embodiments, the second information for a sub-configuration includes at least one of the following: namely, the bandwidth CQI of the second transmission block (TB) corresponding to the sub-configuration, the LI corresponding to the sub-configuration, the PMI first bandwidth information area corresponding to the sub-configuration, and the PMI second bandwidth information area or codebook index corresponding to the sub-configuration.

[0304] In some embodiments, mapping the second portion of the CSI bandwidth to second information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: The bandwidth CQI of the second transmission block (TB) corresponding to at least some of the sub-settings is mapped in ascending order of the sub-setting index; The layer indicators (LIs) corresponding to at least some of the sub-settings are mapped in ascending order of the sub-setting index; The PMI first bandwidth information area corresponding to at least some of the sub-settings is mapped in ascending order of the sub-setting index; and The PMI second bandwidth information area or codebook index corresponding to at least some of the sub-settings is mapped in ascending order of the sub-setting index.

[0305] In some embodiments, mapping the second portion of the CSI bandwidth to second information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: The second information corresponding to at least some of the sub-settings is mapped according to each sub-setting in ascending order of the sub-setting index, and the second information for each sub-setting is mapped in the following order: namely, the bandwidth CQI of the second transmission block (TB) corresponding to the sub-setting, the LI corresponding to the sub-setting, the PMI first bandwidth information area corresponding to the sub-setting, the PMI second bandwidth information area corresponding to the sub-setting, or the codebook index.

[0306] In some embodiments, the PMI first bandwidth information area corresponding to the N sub-settings includes the PMI first bandwidth information area corresponding to the previous M sub-settings, and the PMI first bandwidth information area corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The PMI second bandwidth information area or codebook index corresponding to the aforementioned N sub-settings includes the PMI second bandwidth information area or codebook index corresponding to the previous M sub-settings, while the PMI second bandwidth information area or codebook index corresponding to the remaining NM sub-settings is omitted.

[0307] In some embodiments, for a PUSCH-based CSI report, the CSI report includes the first part of the CSI, the bandwidth of the second part of the CSI, and the subband of the second part of the CSI; and for a PUCCH-based CSI report, the CSI report includes the bandwidth CSI, the first part of the CSI, the bandwidth of the second part of the CSI, and the subband of the second part of the CSI.

[0308] In the subband of the second part of the CSI, the CSI area mapping order includes the following: Mapping the subband difference CQI of the second transmission block (TB), which is arranged in ascending order of even subbands corresponding to at least some of the N sub-settings according to the ascending order of the sub-setting index; Map PMI subband information or codebook index, which is arranged in ascending order of even subbands corresponding to at least some of the N subsettings, according to the ascending order of the subsetting index; Mapping the subband difference CQI of the second transmission block (TB) which is arranged in ascending order of odd subbands corresponding to at least some of the N subsettings according to the ascending order of the subsetting index; and This maps PMI subband information or a codebook index, which is arranged in ascending order of odd-numbered subbands corresponding to at least some of the N sub-settings, according to the ascending order of the sub-setting index.

[0309] In some embodiments, in the subband of the second part of the CSI, the CSI area mapping sequence includes the following: Third information corresponding to at least some of the sub-settings is mapped according to each sub-setting in the ascending order of the sub-setting index, and for the third information of each sub-setting, the mapping is performed in the following order: namely, the subband difference CQI of the second transmission block (TB) arranged in ascending order of even subbands corresponding to the sub-setting, PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the sub-setting, the subband difference CQI of the second transmission block (TB) arranged in ascending order of odd subbands corresponding to the sub-setting, and PMI subband information or codebook index arranged in ascending order of odd subbands corresponding to the sub-setting.

[0310] In some embodiments, the third information corresponding to a sub-setting includes at least one of the following: subband difference CQIs of the second transmission block (TB) arranged in ascending order of even subbands corresponding to the sub-setting; PMI subband information or a codebook index arranged in ascending order of even subbands corresponding to the sub-setting; subband difference CQIs of the second transmission block (TB) arranged in ascending order of odd subbands corresponding to the sub-setting; and PMI subband information or a codebook index arranged in ascending order of odd subbands corresponding to the sub-setting.

[0311] In some embodiments, the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the N sub-settings includes the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the previous M sub-settings, and the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the aforementioned N sub-settings, includes the PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the previous M sub-settings, while the PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the remaining NM sub-settings, is omitted.

[0312] In some embodiments, the CSI report includes S CQIs, of which the second through Sth CQIs are differential CQIs or CQI offsets relative to the first CQI, and the differential CQI is X bits.

[0313] In some embodiments, the bit width of the RI in the sub-setting is, when there are two antenna ports,

[0314]

number

[0315]

number

[0316]

number

[0317] In the aforementioned sub-configuration, when the bit width of the differential bandwidth CQI for the first TB is X, and is greater than 4 antenna ports and the rank is 5 to 8, the bit width of the differential bandwidth CQI for the second TB in the aforementioned sub-configuration is X, and the bit width of the CRI in the aforementioned sub-configuration is

[0318]

number

[0319] Although only the components or modules according to the present invention have been described above, the present invention is not limited to these. The channel state information mapping device 400 may further include other components or modules, and the specific details of these components or modules can be found in related technologies.

[0320] Furthermore, for convenience, Figure 4 only shows the connection relationships or signal directions between each component or module, but various related technologies such as bus connections may be employed so that those skilled in the art can understand them. The above-mentioned components or modules may be realized by hardware such as processors, memory devices, transmitters, and receivers, but the implementation of the present invention is not limited to these.

[0321] According to embodiments of the present invention, even in several scenarios where wireless communication is applied (e.g., energy-saving mode), terminal devices can accurately perform CSI mapping, enabling accurate and efficient transmission of CSI reports, reducing the overhead of CSI reporting, and saving uplink resources.

[0322] <Example of the sixth side view> An embodiment of the present invention provides a channel state information mapping device. This device may be, for example, a network device, or one or more components or assemblies installed on a network device, and the same description as in the first to fourth embodiments is omitted here.

[0323] Figure 5 shows a channel state information mapping device in an embodiment of the present invention. As shown in Figure 5, the channel state information mapping device 500 includes the following, namely, First transmission unit 501: transmits a channel status information (CSI) reporting setting, the channel status information (CSI) reporting setting is associated with K CSIs, the channel status information (CSI) reporting setting includes P sub-settings, one of the P sub-settings corresponds to at least one CSI, where 1 ≤ P ≤ K; and Second transmitting unit 502: transmits instruction information, which is used to trigger (instruct / activate) N sub-settings out of the P sub-settings, where 1 ≤ N ≤ P; and terminal equipment determines a CSI report based on the CSI area mapping order, of which the CSI report includes at least one CSI corresponding to the N sub-settings.

[0324] Although only the components or modules of the present invention have been described above, the present invention is not limited thereto. The channel state information mapping device 500 may further include other components or modules, and the specific details of these components or modules can be found in related technologies.

[0325] Furthermore, for convenience, Figure 5 only shows the connection relationships or signal directions between each component or module, but various related technologies such as bus connections may be employed so that those skilled in the art can understand them. The above-mentioned components or modules may be realized by hardware such as processors, memory devices, transmitters, and receivers, but the implementation of the present invention is not limited to these.

[0326] According to embodiments of the present invention, even in several scenarios where wireless communication is applied (e.g., energy-saving mode), terminal devices can accurately perform CSI mapping, enabling accurate and efficient transmission of CSI reports, reducing the overhead of CSI reporting, and saving uplink resources.

[0327] <Example of the seventh side view> In embodiments of the present invention, a communication system is further provided, which can be found by referring to Figure 1, and the same descriptions as those in the first to sixth embodiments are omitted.

[0328] In some embodiments, the communication system 100 may include at least the following: Network equipment: transmits a Channel Status Information (CSI) reporting configuration, the Channel Status Information (CSI) reporting configuration is associated with K CSIs, the Channel Status Information (CSI) reporting configuration includes P sub-configurations, one of the P sub-configurations corresponds to at least one CSI, where 1 ≤ P ≤ K; and transmits instruction information, the instruction information is used to trigger (instruct / activate) N sub-configurations out of the P sub-configurations, where 1 ≤ N ≤ P; and Terminal equipment: Even if not present, a CSI report is determined based on the CSI area mapping order, and of these, the CSI report includes at least one CSI corresponding to the N sub-settings.

[0329] In embodiments of the present invention, network equipment is further provided, which may be, for example, a base station, but the present invention is not limited thereto, and may include other network equipment.

[0330] Figure 6 is a diagram showing the configuration of a network device in an embodiment of the present invention. As shown in Figure 6, the network device 600 may include a processor 610 (for example, a central processor CPU) and a memory unit 620, the memory unit 620 being connected to the processor 610. The memory unit 620 can store various types of data, store a program 630 for information processing, and execute the program 630 under the control of the processor 610.

[0331] For example, the processor 610 may be configured to execute a program to implement the channel state information mapping method described in the embodiment of the fourth aspect. For example, the processor 610 may be configured to perform the following control: namely, to transmit a channel state information (CSI) report setting, the channel state information (CSI) report setting relating to K CSIs, the channel state information (CSI) report setting comprising P sub-settings, one of the P sub-settings corresponding to at least one CSI, where 1 ≤ P ≤ K; and to transmit instruction information, the instruction information used to trigger (instruct / activate) N sub-settings among the P sub-settings, where 1 ≤ N ≤ P; and the terminal device confirms a CSI report based on the CSI area mapping order, where the CSI report comprises at least one CSI corresponding to the N sub-settings.

[0332] Furthermore, as shown in Figure 6, the network device 600 may also include a transceiver 640, an antenna 650, etc., and the functions of the above-mentioned components are the same as in the prior art, so a detailed explanation is omitted here. Note that the network device 600 does not need to include all the components shown in Figure 6. Also, the network device 600 may include components not shown in Figure 6, for which prior art can be referred.

[0333] In embodiments of the present invention, terminal devices are further provided, but the present invention is not limited thereto, and other devices may also be provided.

[0334] Figure 7 shows a terminal device in an embodiment of the present invention. As shown in Figure 7, the terminal device 700 may include a processor 710 and a memory unit 720, the memory unit 720 storing data and programs and connected to the processor 710. Note that this figure is merely illustrative, and telecommunications functions or other functions may be realized by supplementing or substituting other types of configurations.

[0335] For example, the processor 710 may be configured to execute a program to implement the channel state information mapping method described in the first to third embodiments. For example, the processor 710 may be configured to perform the following controls: receive a channel state information (CSI) report setting, the channel state information (CSI) report setting is associated with K CSIs, the channel state information (CSI) report setting includes P sub-settings, one of the P sub-settings corresponds to at least one CSI, where 1 ≤ P ≤ K; receive instruction information, the instruction information is used to trigger (instruct / activate) N sub-settings, where 1 ≤ N ≤ P; and determine a CSI report based on at least a CSI domain mapping order, where the CSI report includes at least one CSI corresponding to the N sub-settings.

[0336] As shown in Figure 7, the terminal device 700 may further include a communication module 730, an input unit 740, a display unit 750, a power supply 760, and the like. Of these, the functions of the above-mentioned components are the same as in the prior art, and a detailed explanation is omitted here. Note that the terminal device 700 does not need to include all the components shown in Figure 7, and the above-mentioned components are not mandatory. Furthermore, the terminal device 700 may also include components not shown in Figure 7, for which prior art can be referenced.

[0337] In embodiments of the present invention, a computer program is further provided, wherein when the terminal device executes the program, the program causes the terminal device to execute the channel state information mapping method described in the first to third embodiments.

[0338] In embodiments of the present invention, a storage medium storing a computer program is provided, and the computer program causes a terminal device to execute the channel state information mapping method described in the first to third embodiments.

[0339] In embodiments of the present invention, a computer program is further provided, wherein when the program is executed on a network device, the program causes the network device to execute the channel state information mapping method described in the embodiment of the fourth aspect.

[0340] In embodiments of the present invention, a storage medium storing a computer program is further provided, wherein the computer program causes a network device to execute the channel state information mapping method described in the embodiment of the fourth aspect.

[0341] Furthermore, the above-described apparatus and method may be implemented by software or hardware, or by a combination of hardware and software. The present invention further relates to a computer-readable program as described below, that is, the program, when executed by a logic component, causes the logic component to implement the above-described apparatus or component, or to the logic component to implement each of the above-described methods or steps. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, or a processor used in a computer. The present invention further relates to a storage medium storing the above-described program, for example, a hard disk, a magnetic disk, an optical hard disk, a DVD, a flash memory, etc.

[0342] Furthermore, one or more combinations of the functional blocks shown in the drawings and / or one or more combinations of functional blocks may be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic component, discrete gate or transistor logic component, discrete hardware assembly or any other suitable combination for performing the functions described herein. Also, one or more combinations of the functional blocks shown in the drawings and / or one or more combinations of functional blocks may further be configured as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors connected to a DSP by communication or any other combination of any other configuration.

[0343] Although preferred embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and any modifications to the present invention that do not deviate from the spirit of the invention fall within the technical scope of the present invention.

[0344] Furthermore, the following additional information is disclosed regarding the above-mentioned embodiments.

[0345] (Note 1) A method for mapping channel status information (CSI), A terminal device receives a channel status information (CSI) reporting setting, the channel status information (CSI) reporting setting is associated with K CSIs, the channel status information (CSI) reporting setting includes P sub-settings, one of the P sub-settings corresponds to at least one CSI, and of which 1 ≤ P ≤ K; The terminal device receives instruction information, and the instruction information is used to trigger (instruct / activate) N sub-settings out of the P sub-settings, where 1 ≤ N ≤ P; and The terminal device determines a CSI report based on the CSI area mapping sequence, wherein the CSI report includes at least one CSI corresponding to the N sub-settings.

[0346] (Note 2) The method described in Appendix 1, The aforementioned sub-setting includes the following piece of information: Parameter N1; Parameter N2; Parameter Ng; Codebook subset restriction; and This is port information. The port information is used to indicate some of the ports of the channel status information reference signal (CSI-RS) resources associated with the channel status information (CSI) reporting settings.

[0347] (Note 3) The method described in Appendix 1 or 2, The aforementioned sub-configurations are those included in the sub-configuration information (sub-config) of the channel status information (CSI) reporting settings, or the codebook configuration information (codebook config) of the channel status information (CSI) reporting settings, or the parameter configuration information (N1-N2 config) of the channel status information (CSI) reporting settings.

[0348] (Note 4) A method described in any one of the appendices 1 to 3, For PUSCH-based CSI reports, the CSI report includes the first part of the CSI, the bandwidth of the second part of the CSI, and the subbands of the second part of the CSI; and for PUCCH-based CSI reports, the CSI report includes the bandwidth CSI, the first part of the CSI, the bandwidth of the second part of the CSI, and the subbands of the second part of the CSI.

[0349] (Note 5) The method described in Appendix 4, In the first part of the PUSCH-based CSI, or the first part of the PUSCH-based bandwidth CSI and / or the CSI, the CSI area mapping sequence includes, namely, This includes mapping the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index, Among them, those where 1 ≤ L ≤ N.

[0350] (Note 6) The method described in Appendix 4, In the first part of the PUSCH-based CSI, or the first part of the PUSCH-based bandwidth CSI and / or the CSI, the CSI area mapping sequence includes, namely, Mapping is performed on the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index; and This includes mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index, Among them, those where 1 ≤ L ≤ N.

[0351] (Note 7A) The method described in Appendix 5 or 6, For a PUSCH CSI report, the primary information corresponding to a sub-configuration includes at least one of the following: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-configuration, the rank indicator corresponding to the sub-configuration, the wideband CQI (CQI) of the first transmission block (TB) corresponding to the sub-configuration, the subband differential CQI (CQI) corresponding to the sub-configuration, and the coefficient information corresponding to the sub-configuration.

[0352] (Note 7B) The method described in Appendix 5 or 6, For PUCCH's CSI report, the primary information corresponding to a sub-configuration includes at least one of the following: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-configuration, the rank indicator corresponding to the sub-configuration, the layer indicator (LI) corresponding to the sub-configuration, the PMI bandwidth information corresponding to the sub-configuration, the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to the sub-configuration, and the bandwidth CQI (wideband CQI) of the second transmission block (TB) corresponding to the sub-configuration.

[0353] (Appendix 7C) The method described in Appendix 5 or 6, For PUCCH's CSI report, the primary information corresponding to a sub-configuration includes at least one of the following: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-configuration, the rank indicator corresponding to the sub-configuration, the wideband CQI of the first transmission block (TB) corresponding to the sub-configuration, and the subband differential CQI of the first transmission block (TB) corresponding to the sub-configuration.

[0354] (Note 8A) A method described in any one of the appendices 5 to 7, Regarding PUSCH's CSI report, mapping the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index is: Mapping is performed to CSI-RS resource instructions (CRIs) corresponding to zero or one or more of the L sub-settings in ascending order of the sub-setting index; Mapping is performed for rank indicators corresponding to zero or one or more sub-settings out of L sub-settings, in ascending order of the sub-setting index; A mapping is performed to the bandwidth CQI (wideband CQI) corresponding to zero or one or more of the L sub-settings in ascending order of the sub-setting index; Mapping is performed for subband differential CQIs corresponding to zero or one or more sub-settings out of L sub-settings in ascending order of the sub-setting index; and This includes mapping coefficient information to zero or one or more sub-settings out of L sub-settings, in ascending order of the sub-setting index.

[0355] (Note 8B) A method described in any one of the appendices 5 to 7, Regarding PUSCH's CSI report, mapping the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index is: Mapping is performed to CSI-RS resource instructions (CRIs) corresponding to zero or one or more of the L sub-settings in ascending order of the sub-setting index; Mapping is performed for rank indicators corresponding to zero or one or more sub-settings out of L sub-settings, in ascending order of the sub-setting index; Mapping is performed for layer indicators (LIs) corresponding to zero or one or more sub-settings among the L sub-settings in ascending order of the sub-setting index; Mapping is performed on the PMI bandwidth information corresponding to zero or one or more sub-settings out of L sub-settings, in ascending order of the sub-setting index; Mapping is performed for the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to zero or one or more sub-settings out of L sub-settings in ascending order of the sub-setting index; and This includes mapping the bandwidth CQI (wideband CQI) of the second transmission block (TB) corresponding to zero or one or more sub-settings out of L sub-settings in ascending order of the sub-setting index.

[0356] (Note 8C) A method described in any one of the appendices 5 to 7, Regarding PUSCH's CSI report, mapping the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index is: Mapping is performed to CSI-RS resource instructions (CRIs) corresponding to zero or one or more of the L sub-settings in ascending order of the sub-setting index; Mapping is performed for rank indicators corresponding to zero or one or more sub-settings out of L sub-settings, in ascending order of the sub-setting index; Mapping is performed for the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to zero or one or more sub-settings out of L sub-settings in ascending order of the sub-setting index; and This includes mapping to the first transmission block (TB) subband differential CQI corresponding to zero or one or more sub-settings out of L sub-settings, in ascending order of the sub-setting index.

[0357] (Note 9A) A method described in any one of the appendices 5 to 7, Regarding PUSCH's CSI report, mapping the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index is: This includes mapping first information corresponding to L sub-settings according to each sub-setting in the ascending order of the sub-setting index, Of these, the first information for each sub-setting is mapped in the following order: namely, the CRI corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the wideband CQI corresponding to the sub-setting, the subband differential CQI corresponding to the sub-setting, and the coefficient information corresponding to the sub-setting.

[0358] (Note 9B) A method described in any one of the appendices 5 to 7, Regarding PUCCH's CSI report, mapping the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index is: This includes mapping first information corresponding to L sub-settings according to each sub-setting in the ascending order of the sub-setting index, Of these, the first information for each sub-setting is mapped in the following order: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the layer indicator (LI) corresponding to the sub-setting, the PMI bandwidth information corresponding to the sub-setting, the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to the sub-setting, and the bandwidth CQI (wideband CQI) of the second transmission block (TB) corresponding to the sub-setting.

[0359] (Note 9C) A method described in any one of the appendices 5 to 7, Regarding PUCCH's CSI report, mapping the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index is: This includes mapping first information corresponding to L sub-settings according to each sub-setting in the ascending order of the sub-setting index, Of these, the first information for each sub-setting is mapped in the following order: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the wideband CQI of the first transmission block (TB) corresponding to the sub-setting, and the subband differential CQI of the first transmission block (TB) corresponding to the sub-setting.

[0360] (Note 10A) The method described in Appendix 6 or 7, Regarding PUSCH's CSI report, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed for CSI-RS resource instructions (CRIs) corresponding to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index; Mapping is performed for rank indicators corresponding to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index; Mapping is performed for the bandwidth CQI (wideband CQI) corresponding to zero or one or more of the NL sub-settings in ascending order of the sub-setting index; Mapping is performed for subband differential CQIs corresponding to zero or one or more sub-settings out of NL sub-settings in ascending order of the sub-setting index; and This system maps coefficient information to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index.

[0361] (Note 10B) The method described in Appendix 6 or 7, Regarding PUCCH's CSI report, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed for CSI-RS resource instructions (CRIs) corresponding to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index; Mapping is performed for rank indicators corresponding to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index; Mapping is performed for layer indicators (LIs) corresponding to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index; Mapping is performed on the PMI bandwidth information corresponding to zero or one or more of the NL sub-settings in ascending order of the sub-setting index; Mapping is performed for the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to zero or one or more sub-settings out of NL sub-settings in ascending order of the sub-setting index; and This method maps the bandwidth CQI (wideband CQI) of the second transmission block (TB) corresponding to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index.

[0362] (Note 10C) The method described in Appendix 6 or 7, Regarding PUCCH's CSI report, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed for CSI-RS resource instructions (CRIs) corresponding to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index; Mapping is performed for rank indicators corresponding to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index; Mapping is performed for the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to zero or one or more sub-settings out of NL sub-settings in ascending order of the sub-setting index; and This method maps the subband differential CQI (CQI) of the first transmission block (TB) to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index.

[0363] (Note 11A) The method described in Appendix 6 or 7, Regarding PUSCH's CSI report, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Map the first information corresponding to NL sub-settings according to each sub-setting in the sub-setting index in ascending order. Of these, the first information for each sub-setting is mapped in the following order: namely, the CRI corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the wideband CQI corresponding to the sub-setting, the subband differential CQI corresponding to the sub-setting, and the coefficient information corresponding to the sub-setting.

[0364] (Note 11B) The method described in Appendix 6 or 7, Regarding PUCCH's CSI report, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Map the first information corresponding to NL sub-settings according to each sub-setting in the sub-setting index in ascending order. Of these, the first information for each sub-setting is mapped in the following order: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the layer indicator (LI) corresponding to the sub-setting, the PMI bandwidth information corresponding to the sub-setting, the bandwidth CQI (wideband CQI) of the first transmission block (TB) corresponding to the sub-setting, and the bandwidth CQI (wideband CQI) of the second transmission block (TB) corresponding to the sub-setting.

[0365] (Note 11C) The method described in Appendix 6 or 7, Regarding PUCCH's CSI report, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Map the first information corresponding to NL sub-settings according to each sub-setting in the sub-setting index in ascending order. Of these, the first information for each sub-setting is mapped in the following order: namely, the CSI-RS resource indicator (CRI) corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the wideband CQI of the first transmission block (TB) corresponding to the sub-setting, and the subband differential CQI of the first transmission block (TB) corresponding to the sub-setting.

[0366] (Note 12A) A method described in any one of the appendices 5 to 11, Regarding PUSCH's CSI report, the CRI corresponding to the N sub-settings includes the CRI corresponding to the previous M sub-settings, and the CRI corresponding to the remaining NM sub-settings is omitted, of which 1 ≤ M ≤ N; and / or The rank indicators corresponding to the aforementioned N sub-settings include the rank indicators corresponding to the previous M sub-settings, and the rank indicators corresponding to the remaining NM sub-settings are omitted, where 1 ≤ M ≤ N; and / or The wideband CQI corresponding to the N sub-settings includes the wideband CQI corresponding to the previous M sub-settings, and the wideband CQI corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The subband differential CQIs corresponding to the N sub-settings include the subband differential CQIs corresponding to the previous M sub-settings, and the subband differential CQIs corresponding to the remaining NM sub-settings are omitted, where 1 ≤ M ≤ N; and / or The coefficient information corresponding to the aforementioned N sub-settings includes the coefficient information corresponding to the previous M sub-settings, while the coefficient information corresponding to the remaining NM sub-settings is omitted, and among these, those where 1 ≤ M ≤ N.

[0367] (Note 12B) A method described in any one of the appendices 5 to 11, Regarding PUCCH's CSI report, the CRI corresponding to the N sub-settings includes the CRI corresponding to the previous M sub-settings, and the CRI corresponding to the remaining NM sub-settings is omitted, of which 1 ≤ M ≤ N; and / or The rank indicators corresponding to the aforementioned N sub-settings include the rank indicators corresponding to the previous M sub-settings, and the rank indicators corresponding to the remaining NM sub-settings are omitted, where 1 ≤ M ≤ N; and / or The LI corresponding to the N sub-settings includes the LI corresponding to the previous M sub-settings, and the LI corresponding to the remaining NM sub-settings is omitted, of which 1 ≤ M ≤ N; and / or The PMI bandwidth corresponding to the aforementioned N sub-settings includes the PMI bandwidth corresponding to the previous M sub-settings, and the PMI bandwidth corresponding to the remaining NM sub-settings is omitted, of which 1 ≤ M ≤ N; and / or The coefficient information corresponding to the N sub-settings includes the bandwidth CQI of the first TB corresponding to the previous M sub-settings, while the bandwidth CQI of the first TB corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The coefficient information corresponding to the aforementioned N sub-settings includes the second TB bandwidth CQI corresponding to the previous M sub-settings, while the second TB bandwidth CQI corresponding to the remaining NM sub-settings is omitted, and among these, those where 1 ≤ M ≤ N.

[0368] (Note 12C) A method described in any one of the appendices 5 to 11, Regarding PUCCH's CSI report, the CRI corresponding to the N sub-settings includes the CRI corresponding to the previous M sub-settings, and the CRI corresponding to the remaining NM sub-settings is omitted, of which 1 ≤ M ≤ N; and / or The RI corresponding to the aforementioned N sub-settings includes the RI corresponding to the previous M sub-settings, and the RI corresponding to the remaining NM sub-settings is omitted; and / or The bandwidth CQI of the first TB corresponding to the N sub-settings includes the bandwidth CQI of the first TB corresponding to the previous M sub-settings, and the bandwidth CQI of the first TB corresponding to the remaining NM sub-settings is omitted; and / or The subband difference CQI of the first TB corresponding to the aforementioned N sub-settings includes the subband difference CQI of the first TB corresponding to the previous M sub-settings, while the subband difference CQI of the first TB corresponding to the remaining NM sub-settings is omitted.

[0369] (Note 13) A method described in any one of the appendices 5 to 12, The wideband CQI corresponding to the N sub-settings includes the wideband CQI corresponding to the previous M sub-settings, and the wideband CQI corresponding to the remaining NM sub-settings is the difference CQI relative to the wideband CQI corresponding to at least one of the previous M sub-settings.

[0370] (Note 14) A method described in any one of the appendices 4 to 13, In the bandwidth of the second portion of the CSI, the CSI area mapping order is: Mapping is performed on the second information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index; and This involves mapping the second set of information corresponding to the last NL sub-settings out of N sub-settings, in ascending order of the sub-setting index. Among them, those where 1 ≤ L ≤ N.

[0371] (Note 15) A method described in any one of the appendices 4 to 13, In the bandwidth of the second portion of the CSI, the CSI area mapping order is: Mapping is performed on the first information corresponding to the last NL sub-settings out of N sub-settings, in ascending order of the sub-setting index; Mapping is performed on the second information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index; and This involves mapping the second set of information corresponding to the last NL sub-settings out of N sub-settings, in ascending order of the sub-setting index. Among them, those where 1 ≤ L ≤ N.

[0372] (Note 16) A method described in any one of the appendices 4 to 13, In the bandwidth of the second portion of the CSI, the CSI area mapping order is: Mapping is performed on the second information corresponding to the previous L sub-settings out of N sub-settings, in ascending order of the sub-setting index; Mapping is performed on the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index; and This involves mapping the second set of information corresponding to the last NL sub-settings out of N sub-settings, in ascending order of the sub-setting index. Among them, those where 1 ≤ L ≤ N.

[0373] (Note 17) A method described in any one of the appendices 14 to 16, The second information for a sub-configuration includes at least one of the following: namely, the bandwidth CQI of the second transmission block (TB) corresponding to the sub-configuration, the LI corresponding to the sub-configuration, the PMI first bandwidth information area corresponding to the sub-configuration, and the PMI second bandwidth information area or codebook index corresponding to the sub-configuration.

[0374] (Note 18) A method described in any one of the appendices 14 to 16, In the bandwidth of the second part of the CSI, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed for CSI-RS resource instructions (CRIs) corresponding to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index; Mapping is performed for rank indicators corresponding to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index; Mapping is performed for the bandwidth CQI (wideband CQI) corresponding to zero or one or more of the NL sub-settings in ascending order of the sub-setting index; Mapping is performed for subband differential CQIs corresponding to zero or one or more sub-settings out of NL sub-settings in ascending order of the sub-setting index; and This system maps coefficient information to zero or one or more sub-settings out of NL sub-settings, in ascending order of the sub-setting index.

[0375] (Note 19) A method described in any one of the appendices 14 to 16, In the bandwidth of the second part of the CSI, mapping the first information corresponding to the last NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Map the first information corresponding to NL sub-settings according to each sub-setting in the sub-setting index in ascending order. Of these, the first information for each sub-setting is mapped in the following order: namely, the CRI corresponding to the sub-setting, the rank indicator corresponding to the sub-setting, the wideband CQI corresponding to the sub-setting, the subband differential CQI corresponding to the sub-setting, and the coefficient information corresponding to the sub-setting.

[0376] (Note 20) A method described in any one of the appendices 14 to 16, In the bandwidth of the second part of the CSI, mapping to the second information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Map the bandwidth CQI of the second transmission block (TB) corresponding to L sub-settings in ascending order of the sub-setting index; Map the layer indicators (LI) corresponding to L sub-settings in ascending order of the sub-setting index; Map the PMI first bandwidth information area corresponding to L sub-settings in ascending order of the sub-setting index; and This method maps the PMI second bandwidth information area or codebook index to L sub-settings in ascending order of the sub-setting index.

[0377] (Note 21) A method described in any one of the appendices 14 to 16, In the bandwidth of the second part of the CSI, mapping to the second information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Map the second information corresponding to L sub-settings according to each sub-setting in the ascending order of the sub-setting index. Of these, the second information for each sub-setting is mapped in the following order: namely, the bandwidth CQI of the second transmission block (TB) corresponding to the sub-setting, the LI corresponding to the sub-setting, the PMI first bandwidth information area corresponding to the sub-setting, the PMI second bandwidth information area corresponding to the sub-setting, or the codebook index.

[0378] (Note 22) A method described in any one of the appendices 14 to 16, In the bandwidth of the second part of the CSI, mapping the second information to the later NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: The bandwidth CQI of the second transmission block (TB) corresponding to NL sub-configurations is mapped in ascending order of the sub-configuration index; Map the layer indicators (LIs) corresponding to NL sub-settings in ascending order of the sub-setting index; The PMI first bandwidth information area is mapped to NL sub-settings in ascending order of the sub-setting index; and This maps the PMI second bandwidth information area or codebook index to NL sub-settings in ascending order of the sub-setting index.

[0379] (Note 23) A method described in any one of the appendices 14 to 16, In the bandwidth of the second part of the CSI, mapping the second information to the later NL sub-settings out of N sub-settings in ascending order of the sub-setting index includes the following: Map the second information corresponding to L sub-settings according to each sub-setting in the ascending order of the sub-setting index. Of these, the second information for each sub-setting is mapped in the following order: namely, the bandwidth CQI of the second transmission block (TB) corresponding to the sub-setting, the LI corresponding to the sub-setting, the PMI first bandwidth information area corresponding to the sub-setting, the PMI second bandwidth information area corresponding to the sub-setting, or the codebook index.

[0380] (Note 24) A method described in any one of the appendices 14 to 23, The PMI first bandwidth information area corresponding to the N sub-settings includes the PMI first bandwidth information area corresponding to the previous M sub-settings, and the PMI first bandwidth information area corresponding to the remaining NM sub-settings is omitted, where 1 ≤ M ≤ N; and / or The PMI second bandwidth information area or codebook index corresponding to the aforementioned N sub-settings includes the PMI second bandwidth information area or codebook index corresponding to the previous M sub-settings, while the PMI second bandwidth information area or codebook index corresponding to the remaining NM sub-settings is omitted.

[0381] (Note 25) A method described in any one of the appendices 2 to 24, In the subband of the second part of the CSI, the CSI area mapping order is: Mapping the subband difference CQI of the second transmission block (TB), which is arranged in ascending order of even subbands corresponding to N sub-settings according to the ascending order of the sub-setting index; Maps PMI subband information or codebook index, which is arranged in ascending order of an even number of subbands corresponding to N sub-settings according to the ascending order of the sub-setting index; Mapping the subband difference CQI of the second transmission block (TB), which is arranged in ascending order of odd subbands corresponding to N sub-settings according to the ascending order of the sub-setting index; and This involves mapping PMI subband information or a codebook index, which is arranged in ascending order of an odd number of subbands corresponding to N sub-settings, according to the ascending order of the sub-setting index.

[0382] (Note 26) A method described in any one of the appendices 2 to 24, In the subband of the second part of the CSI, the CSI area mapping order is: This involves mapping third information corresponding to N sub-settings according to the ascending order of each sub-setting in the sub-setting index. Of these, the third information for each sub-setting is mapped in the following order: namely, the subband difference CQI of the second transmission block (TB) arranged in ascending order of even-numbered subbands corresponding to the sub-setting, PMI subband information or codebook index arranged in ascending order of even-numbered subbands corresponding to the sub-setting, the subband difference CQI of the second transmission block (TB) arranged in ascending order of odd-numbered subbands corresponding to the sub-setting, and PMI subband information or codebook index arranged in ascending order of odd-numbered subbands corresponding to the sub-setting.

[0383] (Note 27) The method described in Appendix 26, The third information corresponding to one sub-setting includes at least one of the following: namely, subband difference CQIs of the second transmission block (TB) arranged in ascending order of even subbands corresponding to the sub-setting, PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the sub-setting, subband difference CQIs of the second transmission block (TB) arranged in ascending order of odd subbands corresponding to the sub-setting, and PMI subband information or codebook index arranged in ascending order of odd subbands corresponding to the sub-setting.

[0384] (Note 28) A method described in any one of the appendices 25 to 27, The PMI subband information or codebook index, arranged in ascending order of even subbands corresponding to the N sub-settings, includes the PMI subband information or codebook index, arranged in ascending order of even subbands corresponding to the previous M sub-settings, while the PMI subband information or codebook index, arranged in ascending order of even subbands corresponding to the remaining NM sub-settings, is omitted, where 1 ≤ M ≤ N; and / or The PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the aforementioned N sub-settings, includes the PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the previous M sub-settings, while the PMI subband information or codebook index, arranged in ascending order of odd subbands corresponding to the remaining NM sub-settings, is omitted.

[0385] (Note 29) A method described in any one of the appendices 1 to 28, The aforementioned CSI report contains S CQIs, of which the 2nd through Sth CQIs are differential CQIs or CQI offsets relative to the 1st CQI.

[0386] (Note 30) The method described in Appendix 29, The aforementioned differential CQI is X bits.

[0387] (Note 31) A method described in any one of the appendices 1 to 30, The bit width of the RI in the above sub-setting is, when there are two antenna ports,

[0388]

number

[0389]

number

[0390]

number

[0391] (Note 32) A method described in any one of the appendices 1 to 31, In the aforementioned sub-configuration, the bit width of the differential bandwidth CQI for the first TB is X. When the number of antenna ports is greater than 4 and the rank is 5 to 8, the bit width of the differential bandwidth CQI for the second TB in the above sub-configuration is X.

[0392] (Note 33) A method described in any one of the appendices 1 to 32, The bit width of the CRI in the aforementioned sub-setting is

[0393]

number

[0394] (Note 34) A method for mapping channel status information (CSI) reports, A network device transmits a Channel Status Information (CSI) reporting configuration, the Channel Status Information (CSI) reporting configuration is associated with K CSIs, the Channel Status Information (CSI) reporting configuration includes P subconfigurations, one of the P subconfigurations corresponds to at least one CSI, where 1 ≤ P ≤ K; and The network device transmits instruction information, which is used to trigger (instruct / activate) N sub-settings out of the P sub-settings, where 1 ≤ N ≤ P. A terminal device that determines a CSI report based on a CSI area mapping sequence, wherein the CSI report includes at least one CSI corresponding to the N sub-settings.

[0395] (Note 35) Terminal device, Including memory and processing units, The memory device stores a computer program. The processor is configured to execute the computer program and implement the channel state information mapping method described in any one of the appendices 1 to 33.

[0396] (Note 36) Network equipment, Including memory and processing units, The memory device stores a computer program. The processor is configured to execute the computer program to implement the channel state information mapping method described in Appendix 34.

Claims

1. A channel state information mapping device, A first receiving unit that receives a channel status information reporting setting, wherein the channel status information reporting setting is associated with K channel status information, the channel status information reporting setting includes P sub-settings, one of the P sub-settings corresponds to at least one channel status information, and P is 1 or more and K or less; A second receiving unit that receives instruction information, wherein the instruction information is used to trigger / instruct / activate N sub-settings out of the P sub-settings, and N is 1 or more and P or less; and A processing unit or device that determines a channel state information report based at least on a channel state information area mapping order, wherein the channel state information report includes at least one channel state information corresponding to the N sub-settings.

2. The apparatus according to claim 1, The aforementioned sub-setting includes the following information: parameter N1; parameter N2; parameter Ng; codebook subset restrictions; and port information. The port information is used to indicate some of the ports of the channel status information reference signal resource associated with the channel status information reporting setting. The device wherein the sub-setting is included in the sub-setting information of the channel status information reporting setting, or the codebook setting information of the channel status information reporting setting, or the parameter setting information of the channel status information reporting setting.

3. The apparatus according to claim 1, With respect to the PUSCH-based channel status information report, the channel status information report includes the first part of the CSI, the bandwidth of the second part of the CSI, and the subbands of the second part of the CSI. Regarding the PUCCH base channel status information report, the channel status information report includes the bandwidth CSI, the first part of the CSI, the bandwidth of the second part of the CSI, and the subband of the second part of the CSI. In the first part of the PUCCH-based CSI, or the first part of the PUCCH-based bandwidth CSI and / or the CSI, the CSI area mapping order includes mapping to the first information corresponding to the previous L sub-settings out of N sub-settings in ascending order of the sub-setting index, where L is 1 or greater and N or less; or The first part of the PUCCH-based CSI is a PUCCH-based bandwidth CSI and / or the first part of the CSI, wherein the CSI area mapping order includes mapping to first information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, and mapping to first information corresponding to the subsequent N-L sub-settings out of N sub-settings in ascending order of the sub-setting index, where L is 1 or greater and N or less.

4. The apparatus according to claim 3, For PUSCH's CSI report, the primary information corresponding to a sub-setting includes at least one of the following: namely, a CSI-RS resource indication corresponding to the sub-setting, a rank indication corresponding to the sub-setting, a first transmission block bandwidth CQI corresponding to the sub-setting, a subband difference CQI corresponding to the sub-setting, and coefficient information corresponding to the sub-setting; or For PUCCH's CSI report, the first information corresponding to a sub-configuration includes at least one of the following: namely, a CSI-RS resource indication corresponding to the sub-configuration, a rank indication corresponding to the sub-configuration, a layer indication corresponding to the sub-configuration, PMI bandwidth information corresponding to the sub-configuration, a first transmission block bandwidth CQI corresponding to the sub-configuration, and a second transmission block bandwidth CQI corresponding to the sub-configuration; or For PUCCH's CSI report, the primary information corresponding to a sub-configuration includes at least one of the following: namely, a CSI-RS resource indication corresponding to the sub-configuration, a rank indication corresponding to the sub-configuration, a first transmission block bandwidth CQI corresponding to the sub-configuration, and a first transmission block subband difference CQI corresponding to the sub-configuration, and the equipment.

5. The apparatus according to claim 3, Regarding PUSCH's CSI report, mapping the first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed to CSI-RS resource instructions corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed to rank indicators corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed for bandwidth CQIs corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed for subband differential CQIs corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; and Mapping coefficient information corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; or Regarding PUSCH's CSI report, mapping the first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed to CSI-RS resource instructions corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed to rank indicators corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed to layer indicators corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed on PMI bandwidth information corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed for the first transmission block bandwidth CQI corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; and Mapping is performed to the second transmission block bandwidth CQI corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; or Regarding PUSCH's CSI report, mapping the first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: Mapping is performed to CSI-RS resource instructions corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed to rank indicators corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; Mapping is performed for the first transmission block bandwidth CQI corresponding to zero or one or more sub-settings in ascending order of the sub-setting index; and A device that maps zero or one or more sub-settings to the first transmission block subband difference CQI according to the ascending order of the sub-setting index.

6. The apparatus according to claim 3, Regarding PUSCH's CSI report, mapping the first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: The first information corresponding to at least some of the sub-settings is mapped according to each sub-setting in the ascending order of the sub-setting index, The first information for each sub-setting is mapped in the following order: namely, the CSI-RS resource instruction corresponding to the sub-setting, the rank instruction corresponding to the sub-setting, the bandwidth CQI corresponding to the sub-setting, the subband difference CQI corresponding to the sub-setting, and the coefficient information corresponding to the sub-setting; or Regarding PUCCH's CSI report, mapping the first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: The first information corresponding to at least some of the sub-settings is mapped according to each sub-setting in the ascending order of the sub-setting index, The first information for each sub-setting is mapped in the following order: namely, the CSI-RS resource instruction corresponding to the sub-setting, the rank instruction corresponding to the sub-setting, the layer instruction corresponding to the sub-setting, the PMI bandwidth information corresponding to the sub-setting, the first transmission block bandwidth CQI corresponding to the sub-setting, and the second transmission block bandwidth CQI corresponding to the sub-setting; or Regarding PUCCH's CSI report, mapping the first information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: The first information corresponding to at least some of the sub-settings is mapped according to each sub-setting in the ascending order of the sub-setting index, The device maps the first information of each sub-setting in the following order: namely, the CSI-RS resource instruction corresponding to the sub-setting, the rank instruction corresponding to the sub-setting, the first transmission block bandwidth CQI corresponding to the sub-setting, and the first transmission block subband difference CQI corresponding to the sub-setting.

7. The apparatus according to claim 3, The CRI corresponding to the N sub-settings includes the CRI corresponding to the previous M sub-settings, the remaining N-M sub-settings are omitted, and M is 1 or greater and N or less; and / or The rank indication corresponding to the N sub-settings includes the rank indication corresponding to the previous M sub-settings, and the rank indications corresponding to the remaining N-M sub-settings are omitted; and / or The bandwidth CQI corresponding to the N sub-settings includes the bandwidth CQI corresponding to the previous M sub-settings, and the bandwidth CQI corresponding to the remaining N-M sub-settings is omitted; and / or The subband difference CQI corresponding to the N sub-settings includes the subband difference CQI corresponding to the previous M sub-settings, and the subband difference CQI corresponding to the remaining N-M sub-settings is omitted; and / or The device includes coefficient information corresponding to the previous M sub-settings, while omitting coefficient information corresponding to the remaining N-M sub-settings.

8. The apparatus according to claim 3, A device in which the bandwidth CQI corresponding to the N sub-settings includes the bandwidth CQI corresponding to the previous M sub-settings, and the bandwidth CQI corresponding to the remaining N-M sub-settings is the difference CQI with respect to the bandwidth CQI corresponding to at least one of the previous M sub-settings.

9. The apparatus according to claim 1, Regarding the PUSCH-based CSI report, the CSI report includes the first part of the CSI, the bandwidth of the second part of the CSI, and the subbands of the second part of the CSI. Regarding PUCCH-based CSI reporting, the CSI report includes the bandwidth CSI, the first part of the CSI, the bandwidth of the second part of the CSI, and the subbands of the second part of the CSI. In the bandwidth of the second part of the CSI, the CSI area mapping order is to map to the second information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, and to map to the second information corresponding to the subsequent N-L sub-settings out of N sub-settings in ascending order of the sub-setting index, where L is 1 or greater and N or less; or In the bandwidth of the second part of the CSI, the CSI area mapping order is to map to first information corresponding to the later N-L sub-settings out of N sub-settings in ascending order of the sub-setting index, to map to second information corresponding to the earlier L sub-settings out of N sub-settings in ascending order of the sub-setting index, and to map to second information corresponding to the later N-L sub-settings out of N sub-settings in ascending order of the sub-setting index, where L is 1 or greater and N or less; or In the bandwidth of the second part of the CSI, the CSI area mapping order is to perform mapping to the second information corresponding to the preceding L sub-settings out of N sub-settings in ascending order of the sub-setting index, to perform mapping to the first information corresponding to the subsequent N-L sub-settings out of N sub-settings in ascending order of the sub-setting index, and to perform mapping to the second information corresponding to the subsequent N-L sub-settings out of N sub-settings in ascending order of the sub-setting index, where L is 1 or greater and N or less, in the device.

10. The apparatus according to claim 9, The device comprises, namely, at least one of the following: the second information of a sub-configuration, the bandwidth CQI of the second transmission block corresponding to the sub-configuration, the LI corresponding to the sub-configuration, the PMI first bandwidth information area corresponding to the sub-configuration, and the PMI second bandwidth information area or codebook index corresponding to the sub-configuration.

11. The apparatus according to claim 9, In the bandwidth of the second part of the CSI, mapping to second information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: The bandwidth CQI of the second transmission block corresponding to at least some of the sub-settings is mapped in ascending order of the sub-setting index; The layer indications corresponding to at least some of the sub-settings are mapped in ascending order of the sub-setting index; The PMI first bandwidth information area corresponding to at least some of the sub-settings is mapped in ascending order of the sub-setting index; and A device that maps the PMI second bandwidth information area or codebook index corresponding to at least some of the sub-settings in ascending order of the sub-setting index.

12. The apparatus according to claim 9, In the bandwidth of the second part of the CSI, mapping to second information corresponding to at least some of the N sub-settings in ascending order of the sub-setting index includes the following: The second information corresponding to at least some of the sub-settings is mapped according to each sub-setting in the ascending order of the sub-setting index, The device maps the second information of each sub-setting in the following order: namely, the bandwidth CQI of the second transmission block corresponding to the sub-setting, the LI corresponding to the sub-setting, the first PMI bandwidth information area corresponding to the sub-setting, the second PMI bandwidth information area or codebook index corresponding to the sub-setting.

13. The apparatus according to claim 9, The PMI first bandwidth information area corresponding to the N sub-settings includes the PMI first bandwidth information area corresponding to the previous M sub-settings, and the remaining N-M sub-settings corresponding to the PMI first bandwidth information area are omitted, where M is 1 or greater and N or less; and / or The PMI second bandwidth information area or codebook index corresponding to the N sub-settings includes the PMI second bandwidth information area or codebook index corresponding to the previous M sub-settings, and the PMI second bandwidth information area or codebook index corresponding to the remaining N-M sub-settings is omitted, in the apparatus.

14. The apparatus according to claim 1, Regarding the PUSCH-based CSI report, the CSI report includes the first part of the CSI, the bandwidth of the second part of the CSI, and the subbands of the second part of the CSI. Regarding PUCCH-based CSI reporting, the CSI report includes the bandwidth CSI, the first part of the CSI, the bandwidth of the second part of the CSI, and the subbands of the second part of the CSI. In the subband of the second part of the CSI, the CSI area mapping order is: The subband difference CQI of the second transmission block is mapped according to the ascending order of the sub-setting index, and the even number of subbands corresponding to at least some of the N sub-settings are arranged according to the ascending order of the sub-setting index; The PMI subband information or codebook index is mapped in ascending order of the sub-setting index, and then arranged in ascending order of the even number of subbands corresponding to at least some of the N sub-settings; Mapping the subband difference CQI of the second transmission block, which is arranged in ascending order of odd subbands corresponding to at least some of the N sub-settings according to the ascending order of the sub-setting index; and This involves mapping PMI subband information or a codebook index that is arranged in ascending order of odd subbands corresponding to at least some of the N subsettings, according to the ascending order of the subsetting index; or In the subband of the second part of the CSI, the CSI area mapping order is: This involves mapping third information corresponding to at least some of the sub-settings according to each sub-setting in the ascending order of the sub-setting index, The device maps the third information of each sub-setting in the following order: namely, the subband difference CQI of the second transmission block arranged in ascending order of even subbands corresponding to the sub-setting, PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the sub-setting, the subband difference CQI of the second transmission block arranged in ascending order of odd subbands corresponding to the sub-setting, and PMI subband information or codebook index arranged in ascending order of odd subbands corresponding to the sub-setting.

15. The apparatus according to claim 14, A device in which third information corresponding to one sub-setting includes at least one of the following: namely, subband difference CQI of a second transmission block arranged in ascending order of even subbands corresponding to the sub-setting, PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the sub-setting, subband difference CQI of a second transmission block arranged in ascending order of odd subbands corresponding to the sub-setting, and PMI subband information or codebook index arranged in ascending order of odd subbands corresponding to the sub-setting.

16. The apparatus according to claim 14, The PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the N sub-settings includes the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the previous M sub-settings, and the PMI subband information or codebook index arranged in ascending order of even subbands corresponding to the remaining N-M sub-settings is omitted, where M is 1 or greater and N or less; and / or The device includes PMI subband information or codebook index arranged in ascending order of odd subbands corresponding to the N sub-settings, which in turn includes PMI subband information or codebook index arranged in ascending order of odd subbands corresponding to the previous M sub-settings, while omitting PMI subband information or codebook index arranged in ascending order of odd subbands corresponding to the remaining N-M sub-settings.

17. The apparatus according to claim 1, The channel status information report includes S CQIs, where the second to the Sth CQI are difference CQIs or CQI offsets relative to the first CQI. The aforementioned differential CQI is X bits in the device.

18. The apparatus according to claim 1, The bit width of RI in the aforementioned sub-setting is, when there are two antenna ports, [Math 1] And when there are 4 antenna ports, [Math 2] And when there are more than 4 antenna ports, [Math 3] And, n ＲＩ，ＮＥＳ This is the number of permitted RIs, In the aforementioned sub-configuration, the bit width of the differential bandwidth CQI for the first TB is X, and when there are more than 4 antenna ports and the rank is 5 to 8, the bit width of the differential bandwidth CQI for the second TB in the aforementioned sub-configuration is X. The bit width of the CRI in the aforementioned sub-setting is [Math 4] And, or, there is no need to report a CRI. K ＮＥＳ This is the number of CSI-RS resources in the resource set, or the device.

19. A channel state information mapping device, A first transmitting unit that transmits a channel status information reporting setting, wherein the channel status information reporting setting is associated with K channel status information, the channel status information reporting setting includes P sub-settings, one of the P sub-settings corresponds to at least one channel status information, and P is 1 or more and K or less; and A second transmission unit that transmits instruction information, the instruction information is used to trigger / instruct / activate N sub-settings out of the P sub-settings, where N is 1 or more and P or less, and causes a terminal device to confirm the channel status information report based at least on the channel status information area mapping order, The device wherein the channel status information report includes at least one channel status information corresponding to the N sub-settings.

20. It is a communication system, Including network equipment and terminal equipment, The network device transmits a channel status information reporting setting, the channel status information reporting setting is associated with K channel status information, the channel status information reporting setting includes P sub-settings, one of the P sub-settings corresponds to at least one channel status information, P is 1 or more and less than or equal to K; and transmits instruction information, the instruction information is used to trigger / instruct / activate N sub-settings among the P sub-settings, N is 1 or more and less than or equal to P. A communication system in which the terminal device determines a channel state information report based on at least a channel state information area mapping sequence, and the channel state information report includes at least one channel state information corresponding to the N sub-settings.

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