A method and apparatus for CSI reporting in a node for wireless communication

Abstract

A method and apparatus for CSI reporting in a node for wireless communication are disclosed. A first node receives a first reporting configuration and transmits a first report. The first reporting configuration indicates a first subband group and a second subband group, the first subband group and the second subband group are on two carriers respectively, the first subband group includes one or more subbands, and the second subband group includes one or more subbands. The first report includes a first rank indication and at least one of N CSI groups, N is a positive integer greater than 1. At least one of the N CSI groups is for the first subband group, at least one of the N CSI groups is for the second subband group, and the N CSI groups are all conditioned on the first rank indication. A priority of any of the N CSI groups depends on the carrier for which the any of the N CSI groups is for.

Description

Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to schemes and apparatus for CSI (Channel State Information) reporting in wireless communication systems. Background Technology

[0002] The application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios place different performance requirements on the systems. With the widespread application of 5G, new business models and new application scenarios are constantly emerging, and the existing 5G standard cannot fully meet the new demands. Therefore, 3GPP is preparing to begin preliminary research on 6G. As application scenarios become more diversified and new business models emerge, the demand for more flexible and effective use of spectrum resources is increasing daily. Therefore, 6G needs to explore new ways of using spectrum resources.

[0003] Both 4G and 5G systems support carrier aggregation (CA), which allows different frequency domain resources to be used together, increasing overall bandwidth and thus transmission rate and throughput. However, in existing 4G and 5G systems, each component carrier (CC) corresponds to a different cell, and it does not support two or more component carriers corresponding to the same cell. This approach in existing 4G and 5G systems greatly limits the spectrum flexibility in carrier aggregation, especially limiting the use of many fragmented spectrum resources. As spectrum resources (especially low-frequency spectrum resources) become increasingly valuable, 6G networks need to find a flexible and efficient way to utilize spectrum resources. The possibility of multiple carriers or spectrum distributed across multiple bands corresponding to the same cell, thus supporting uplink and downlink transmissions distributed across multiple carriers, is considered a more efficient means for 6G networks to utilize spectrum resources.

[0004] In 5G, a cell operates on a single carrier. CSI (Channel State Information) reporting on different carriers is configured and reported separately. A BWP (Bandwidth Part) on a carrier consists of consecutive RBs (Resource Blocks). In 5G, a single CSI report supports subband CSI reporting within the BWP. For Part 2 CSI reporting, it is explicitly stated that for the same CSI reporting configuration, CSIs from even-numbered subbands take precedence over CSIs from odd-numbered subbands. The priority of different parameters in the precoding matrix, such as Group 0 CSI, Group 1 CSI, and Group 2 CSI, is from high to low. For details, please refer to section 5.2.3 of 3GPP TS 38.214. When the resources in the physical channel are insufficient to carry all CSIs in Part 2 CSI, some CSIs in Part 2 CSI are omitted. The omission of CSIs is done in descending order of priority; when an Omission of a CSI of a certain priority is performed, all CSIs at that priority are also omitted. Furthermore, in 5G CSI reporting, a CSI report on a carrier typically also reports the RI (Rank Indicator) and CRI (Channel State Information Reference Signal Resource Indicator), and the reported subband CSIs are conditional upon these RIs and CRIs. Summary of the Invention

[0005] According to the applicant's research, in future wireless communication systems, reporting channel information on two carriers simultaneously can significantly reduce reporting overhead, improve spectrum efficiency, and lower terminal power consumption, in order to utilize spectrum resources more flexibly and effectively. In this context, determining the priority of the reported CSI is a key issue that needs to be addressed.

[0006] In view of the above problems, this application discloses a solution. It should be noted that the description in this application only uses multi-carrier single-cell (or single-cell multi-carrier) as a typical application scenario or example; this application is also applicable to 6G networks or other scenarios facing similar problems in the future (such as other scenarios requiring the joint use of multiple carriers, or other scenarios requiring effective utilization of fragmented spectrum, such as 2G or 3G spectrum refarming, or other scenarios utilizing idle spectrum from non-cellular systems), targeting different application scenarios, such as eMBB, URLLC, full-duplex networks, IoT, sensor networks, integrated sensing networks, and smart meters. Similar technical effects can be achieved with surface-to-surface (SBS) and terahertz networks using V2X. Furthermore, adopting a unified solution for different scenarios (including but not limited to eMBB, URLLC, full-duplex networks, IoT, sensor networks, integrated sensing networks, smart metasurfaces, terahertz networks, and V2X scenarios) or different application parameters helps reduce hardware complexity and cost. Where there is no conflict, the embodiments and features used in the first node of this application can be applied to the second node of this application, and vice versa. Where there is no conflict, the embodiments and features used in the embodiments of this application can be arbitrarily combined with each other.

[0007] Where necessary, the interpretation of terms used in this application may be referenced to the descriptions in the TS38 series of specification protocols of 3GPP (3rd Generation Partner Project).

[0008] This application discloses a method for a first node in wireless communication, characterized by comprising:

[0009] A first receiver receives a first reporting configuration, the first reporting configuration indicating a first subband group and a second subband group, the first subband group and the second subband group being on two carriers respectively, the first subband group including one or more subbands, and the second subband group including one or more subbands;

[0010] The first transmitter sends the first report;

[0011] The first report includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1; at least one CSI group from the N CSI groups is for the first subband group, at least one CSI group from the N CSI groups is for the second subband group, and all N CSI groups are conditioned on the first rank indicator; the priority of any CSI group from the N CSI groups depends on the carrier to which any CSI group is targeted.

[0012] As an example, the problem this application aims to solve includes: in order to utilize spectrum resources more flexibly and effectively, how to determine the priority of reported CSIs for frequency domain resources on two carriers reported together.

[0013] As an example, CSI priority depends on the carrier being targeted, which has the advantage of being more suitable for multi-carrier scenarios.

[0014] As an example, the advantages of the above method include: reporting channel information on two carriers together can greatly reduce reporting overhead, improve spectrum efficiency, and reduce terminal power consumption.

[0015] As an example, the advantages of the above method include: multiple CSIs for different carriers are conditioned on the same rank indication, which can support the use of resources on each carrier in a single transmission, improve the peak rate, and make more efficient use of spectrum resources.

[0016] As one example, the first node is a user equipment.

[0017] As an example, the first node is a relay node.

[0018] As one example, the first node is a terminal.

[0019] As one example, the terminal is a user equipment.

[0020] According to one aspect of this application, in the N CSI groups, each CSI group for a first carrier has a higher priority than each CSI group for a second carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0021] As an example, in the above method, the priority of CSI on the first carrier is higher than the priority of CSI on the second carrier. The advantages include: ensuring the reliability and robustness of the first carrier, and simplifying the design.

[0022] According to one aspect of this application, in the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0023] As an example, the benefits include: CSI is prioritized on both carriers, ensuring reliability and robustness on both carriers.

[0024] According to one aspect of this application, in the N CSI groups, at least two CSI groups have the same priority, and at least two CSI groups have different priorities.

[0025] According to one aspect of this application, the priorities of the N CSI groups are different from each other.

[0026] According to one aspect of this application, each of the N CSI groups corresponds to an index, and some or all of the N CSI groups correspond to different indices, and the priority of any CSI group in the N CSI groups also depends on the index corresponding to that CSI group.

[0027] According to one aspect of this application, the N is 4, and the N CSI groups are respectively for all even subbands in the first subband group, all odd subbands in the first subband group, all even subbands in the second subband group, and all odd subbands in the second subband group; the priority of any CSI group in the N CSI groups also depends on whether the CSI group is for an even subband or an odd subband.

[0028] According to one aspect of this application, the first report further includes a first CSI group, wherein the priority of the first CSI group is higher than the priority of each of the N CSI groups; wherein the first CSI group is for each of the first subband group and the second subband group.

[0029] According to one aspect of this application, the first report further includes a first CSI group, wherein the priority of the first CSI group is higher than the priority of each of the N CSI groups; wherein the first CSI group includes a first CSI subgroup and a second CSI subgroup, the first CSI subgroup and the second CSI subgroup being respectively directed to the first subband group and the second subband group.

[0030] According to one aspect of this application, the two carriers belong to the same cell.

[0031] The above method supports multi-carrier single-cell (or single-cell multi-carrier) scenarios, that is, multiple carriers correspond to the same cell, which can make more effective use of spectrum resources.

[0032] According to one aspect of this application, the two carriers belong to two different cells.

[0033] The above method supports the simultaneous reporting of channel information on carriers of different cells, which greatly reduces reporting overhead, improves spectrum efficiency, and reduces terminal power consumption.

[0034] This application discloses a method for a second node in wireless communication, characterized by comprising:

[0035] Send a first reporting configuration, the first reporting configuration indicating a first subband group and a second subband group, the first subband group and the second subband group are on two carriers respectively, the first subband group includes one or more subbands, and the second subband group includes one or more subbands;

[0036] Receive the first report;

[0037] The first report includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1; at least one CSI group from the N CSI groups is for the first subband group, at least one CSI group from the N CSI groups is for the second subband group, and all N CSI groups are conditioned on the first rank indicator; the priority of any CSI group from the N CSI groups depends on the carrier to which any CSI group is targeted.

[0038] In one embodiment, the second node is a base station.

[0039] As one embodiment, the second node includes a base station.

[0040] As one embodiment, the second node includes the core network.

[0041] As one embodiment, the second node includes a base station and a core network.

[0042] As one embodiment, the second node is a network device, which includes at least one of a core network device and an access network device.

[0043] As one example, the second node is a device that provides wireless communication services and can communicate with terminal devices, and is usually located on the network side.

[0044] In one embodiment, the second node is a user equipment.

[0045] As one example, the second node is a relay node.

[0046] According to one aspect of this application, in the N CSI groups, each CSI group for a first carrier has a higher priority than each CSI group for a second carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0047] According to one aspect of this application, in the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0048] According to one aspect of this application, in the N CSI groups, at least two CSI groups have the same priority, and at least two CSI groups have different priorities.

[0049] According to one aspect of this application, the priorities of the N CSI groups are different from each other.

[0050] According to one aspect of this application, each of the N CSI groups corresponds to an index, and some or all of the N CSI groups correspond to different indices, and the priority of any CSI group in the N CSI groups also depends on the index corresponding to that CSI group.

[0051] According to one aspect of this application, the N is 4, and the N CSI groups are respectively for all even subbands in the first subband group, all odd subbands in the first subband group, all even subbands in the second subband group, and all odd subbands in the second subband group; the priority of any CSI group in the N CSI groups also depends on whether the CSI group is for an even subband or an odd subband.

[0052] According to one aspect of this application, the first report further includes a first CSI group, wherein the priority of the first CSI group is higher than the priority of each of the N CSI groups; wherein the first CSI group is for each of the first subband group and the second subband group.

[0053] According to one aspect of this application, the first report further includes a first CSI group, wherein the priority of the first CSI group is higher than the priority of each of the N CSI groups; wherein the first CSI group includes a first CSI subgroup and a second CSI subgroup, the first CSI subgroup and the second CSI subgroup being respectively directed to the first subband group and the second subband group.

[0054] According to one aspect of this application, the two carriers belong to the same cell.

[0055] According to one aspect of this application, the two carriers belong to two different cells.

[0056] This application discloses a first node for wireless communication, characterized in that it comprises:

[0057] A first receiver receives a first reporting configuration, the first reporting configuration indicating a first subband group and a second subband group, the first subband group and the second subband group being on two carriers respectively, the first subband group including one or more subbands, and the second subband group including one or more subbands;

[0058] The first transmitter sends the first report;

[0059] The first report includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1; at least one CSI group from the N CSI groups is for the first subband group, at least one CSI group from the N CSI groups is for the second subband group, and all N CSI groups are conditioned on the first rank indicator; the priority of any CSI group from the N CSI groups depends on the carrier to which any CSI group is targeted.

[0060] This application discloses a second node for wireless communication, characterized in that it comprises:

[0061] The second transmitter sends a first reporting configuration, which indicates a first subband group and a second subband group, the first subband group and the second subband group being on two carriers respectively, the first subband group including one or more subbands, and the second subband group including one or more subbands;

[0062] The second receiver receives the first report;

[0063] The first report includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1; at least one CSI group from the N CSI groups is for the first subband group, at least one CSI group from the N CSI groups is for the second subband group, and all N CSI groups are conditioned on the first rank indicator; the priority of any CSI group from the N CSI groups depends on the carrier to which any CSI group is targeted.

[0064] As an example, compared with conventional solutions, this application has the following advantages:

[0065] - It solves the CSI priority problem in multi-carrier scenarios, making it more suitable for multi-carrier scenarios, especially single-cell multi-carrier scenarios;

[0066] - To make more effective use of the more flexible spectrum resources in future communications;

[0067] -Supports simultaneous reporting of channel information on multiple carriers within a single cell or carriers from different cells;

[0068] - It supports using resources on each carrier in a single transmission, improving peak rate;

[0069] - Reduce reporting costs;

[0070] - Reduce terminal power consumption;

[0071] - Improve resource utilization. Attached Figure Description

[0072] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0073] Figure 1 A flowchart illustrating a first reporting configuration and a first reporting according to an embodiment of this application is shown;

[0074] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0075] Figure 3 A schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0076] Figure 4 A schematic diagram of a first communication device and a second communication device according to an embodiment of this application is shown;

[0077] Figure 5 The transmission between a first node and a second node according to one embodiment of this application is illustrated;

[0078] Figures 6A-6B Schematic diagrams of a first sub-band group and a second sub-band group according to an embodiment of this application are shown respectively;

[0079] Figures 7A-7B Schematic diagrams of two carriers according to one embodiment of this application are shown respectively;

[0080] Figures 8A-8B Schematic diagrams illustrating the priority of CSI groups according to one embodiment of this application are shown respectively;

[0081] Figure 9 A schematic diagram illustrating the priority of CSI groups according to another embodiment of this application is shown;

[0082] Figure 10 A schematic diagram illustrating the priority of CSI groups according to another embodiment of this application is shown;

[0083] Figure 11A-11B A schematic diagram showing the relationship between the priorities of N CSI groups according to one embodiment of this application is provided.

[0084] Figure 12 A schematic diagram illustrating the priority of N CSI groups according to an embodiment of this application is shown;

[0085] Figures 13A-13B A schematic diagram illustrating the priority of N CSI groups according to another embodiment of this application is shown;

[0086] Figure 14 illustrates a schematic diagram of the priority between a first CSI group and N CSI groups according to an embodiment of this application;

[0087] Figure 15 A structural block diagram of a processing apparatus for a first node according to an embodiment of this application is shown;

[0088] Figure 16 A structural block diagram of a processing apparatus for a second node according to an embodiment of this application is shown. Detailed Implementation

[0089] The technical solutions of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other. Considering performance, flexibility, complexity, overhead, and compatibility, those skilled in the art are motivated to flexibly combine the embodiments in different drawings without conflict, such as, but not limited to, those in the accompanying drawings. Figure 1 Examples and appendices Figure 5 -Appendix Figure 16 The embodiments in the appendix Figure 5 Examples and appendices Figure 6A -Appendix Figure 16 Examples, etc.

[0090] Example 1

[0091] Example 1 illustrates a flowchart of a first reporting configuration and a first reporting according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown. In the appendix Figure 1 In the 100 shown, each box represents a step.

[0092] In Embodiment 1, the first node receives a first reporting configuration in step 101 and sends a first report in step 102. The first reporting configuration indicates a first subband group and a second subband group, which are respectively on two carriers. The first subband group includes one or more subbands, and the second subband group includes one or more subbands. The first report includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1. At least one CSI group from the N CSI groups is for the first subband group, and at least one CSI group from the N CSI groups is for the second subband group. All N CSI groups are conditional on the first rank indicator. The priority of any CSI group from the N CSI groups depends on the carrier to which any CSI group is targeted.

[0093] Typically, the first reporting configuration is used to configure the first reporting.

[0094] As an example, the first reported configuration is transmitted via an air interface or a wireless interface.

[0095] As one example, the first reporting configuration includes all or part of a higher-level signaling.

[0096] As one embodiment, the first reporting configuration includes all or part of one or more RRC (Radio Resource Control) layer signaling.

[0097] As one example, the first reporting configuration includes IE CSI-ReportConfig.

[0098] As one example, the first reporting configuration includes some or all of the fields in one or more RRC IEs (Information Elements).

[0099] As an example, the first reporting configuration includes an IE CSI-ReportConfig.

[0100] As one embodiment, the first reporting configuration includes a csi-ReportingBand field, which indicates a first subband group and a second subband group.

[0101] As one embodiment, the first subband group and the second subband group are on two carriers respectively; the first reporting configuration includes a carrier field, which indicates the two carriers.

[0102] As one embodiment, the first subband group and the second subband group are on two carriers respectively; the two carriers are indicated by an RRC IE or RRC parameter other than the first reporting configuration.

[0103] As one embodiment, the first reporting configuration indicates at least one RS (Reference Signal) resource, the reporting amount included in the first reporting, and the reporting frequency band of the first reporting.

[0104] As one embodiment, the first sub-band group and the second sub-band group are orthogonal.

[0105] As one embodiment, the first sub-band group and the second sub-band group are not continuous.

[0106] Typically, a subband consists of one or more consecutive resource blocks (RBs).

[0107] Typically, a resource block occupies multiple subcarriers in the frequency domain.

[0108] As an example, the symbol is a single-carrier symbol.

[0109] As an example, the symbol is a multi-carrier symbol.

[0110] As an example, the symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0111] As an example, the symbols are subjected to transformation precoding.

[0112] As an example, the symbols are generated by transform precoding followed by IFFT (Inverse Fast Fourier Transform).

[0113] As an example, the symbol is the DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0114] As an example, the symbol is either SC-FDMA (Single Carrier-Frequency Division Multiple Access) or FBMC (Filter Bank Multi Carrier).

[0115] As one embodiment, the first reporting configuration indicating the first sub-band group and the second sub-band group includes: the first reporting configuration indicating the reporting frequency band of the first reporting, wherein the reporting frequency band of the first reporting includes the first sub-band group and the second sub-band group.

[0116] As one embodiment, the first subband group and the second subband group respectively include subbands of the first reported reporting frequency band on the two carriers respectively.

[0117] As one embodiment, the first subband group and the second subband group are on two carriers, and the two carriers are either inter-band or intra-band non-contiguous.

[0118] As one embodiment, the first reporting configuration indicating the first subband group and the second subband group includes: the first reporting configuration explicitly or implicitly indicating the first subband group and the second subband group.

[0119] As one embodiment, the first reporting configuration indicating the first subband group and the second subband group includes: the first reporting configuration explicitly or implicitly indicating the index or number of the first subband group and the index or number of the second subband group.

[0120] As one embodiment, the first reporting configuration indicating the first sub-band group and the second sub-band group includes: the first reporting configuration indicating the reporting frequency band of the first reporting, wherein the reporting frequency band of the first reporting includes the first sub-band group and the second sub-band group.

[0121] As one embodiment, the first reporting configuration indicating the first subband group and the second subband group includes: the first reporting configuration indicating the reporting frequency band of the first reporting, the first reporting frequency band including at least one subband on each of the two carriers, and the first subband group and the second subband group respectively including the subbands of the first reporting frequency band on the two carriers respectively.

[0122] As one embodiment, the first reporting configuration indicating the first subband group and the second subband group includes: the first reporting configuration indicating two carriers, the first subband group and the second subband group being respectively on the two carriers.

[0123] As one embodiment, the first reporting configuration indicating the first subband group and the second subband group includes: the first reporting configuration indicating two carriers; wherein the first subband group and the second subband group are respectively on the two carriers.

[0124] As one embodiment, the first reporting configuration indicating the first subband group and the second subband group includes: the first reporting configuration implicitly indicates the first subband group and the second subband group by indicating two indices.

[0125] As a specific implementation of the above embodiment, each of the two indices is an integer not less than 0.

[0126] As a specific implementation of the above embodiments, the two indexes are either two cell indexes or two carrier indexes.

[0127] As an example, the first report is carried in MAC CE.

[0128] As an example, the first report is carried in a physical channel.

[0129] As an example, the first report is carried in PUCCH (Physical Uplink Control Channel).

[0130] As an example, the first report is carried in PUSCH (Physical Uplink Shared Channel).

[0131] As an example, the first report also includes a first RS resource indication, wherein all N CSI groups are conditional on the first rank indication and the first RS resource indication.

[0132] As a sub-implementation of the above embodiments, the first RS resource indication is used to indicate an RS resource.

[0133] As a sub-implementation of the above embodiments, the first RS resource indicator is used to indicate a CSI-RS (Channel State Information Reference Signal) resource, and the first RS resource is a CRI (CSI-RS Resource Indicator).

[0134] As a sub-implementation of the above embodiments, the first RS resource indication is used to indicate a synchronization signal resource.

[0135] As a sub-implementation of the above embodiments, the first RS resource indicator is used to indicate an SS / PBCH (Synchronisation Signal / Physical Broadcast Channel) block resource, and the first RS resource indicator is SSBRI (SS / PBCH BlockResource indicator).

[0136] As an example, the N CSI groups are conditional upon the first rank indication and the first RS resource indication, including: the N CSI groups are all calculated or generated based on the measurement of the first RS resource indication, and the number of columns of each precoding matrix indicated by the N CSI groups is the rank indicated by the first rank indication.

[0137] As an example, the condition that the N CSI groups are all based on the first rank indication includes: the N CSI groups are all calculated or generated based on the measurement of the first RS resource indication, and each CQI indicated by the N CSI groups is assumed to be the rank indicated by the first rank indication.

[0138] As an example, the condition that the N CSI groups are all based on the first rank indication includes: the N CSI groups are all calculated or generated based on the measurement of the first RS resource indication, wherein the rank is assumed to be the rank indicated by the first rank indication.

[0139] As an example, in step 101, the first node 100 measures at least one RS (Reference Signal) resource in the first subband group and the second subband group; wherein the first reporting depends on the measurement in the first subband group and the second subband group; the measurement includes at least one of channel measurement and interference measurement.

[0140] As one embodiment, the at least one RS resource includes a CSI-RS (Channel State Information Reference Signal) resource or an SSB (SS / PBCH block, Synchronization Signal Physical Broadcast Channel Block).

[0141] As an example, for each of the at least one RS resources, the occupied subcarriers or resource blocks are distributed in the first subband group and the second subband group.

[0142] In the above method, the first subband group and the second subband group are discontinuous. By allowing an RS resource to occupy a discontinuous resource block, the configuration of RS resources is simplified, it has good compatibility with configuration signaling, and it also saves signaling overhead.

[0143] As one embodiment, for each of the at least one RS resource, the occupied subcarriers or resource blocks are distributed in only one of the first subband group and the second subband group. The first reporting is configured such that the first subband group and the second subband group respectively indicate the RS resource.

[0144] As an example, N1 of the N CSI groups are for the first subband group, and N2 of the N CSI groups are for the first subband group. N1 is a positive integer less than N, N2 is a positive integer less than N, and the sum of N1 and N2 is equal to N.

[0145] As an example, the CSI of each subband in the first subband group depends on at least one of the N CSI groups, and the CSI of each subband in the second subband group depends on at least one of the N CSI groups.

[0146] As an example, the precoding matrix of each subband in the first subband group depends on at least one of the N CSI groups, and the precoding matrix of each subband in the second subband group depends on at least one of the N CSI groups.

[0147] As an example, each of the N CSI groups includes at least one subband of CSI.

[0148] As an example, each of the N CSI groups includes at least one subband PMI.

[0149] As an example, the CSI of a subband includes at least one of the subband differential CQI of the subband and the precoding related information of the subband.

[0150] As an example, the N CSI groups include CSI for the even subband of the first subband group, CSI for the odd subband of the first subband group, CSI for the even subband of the second subband group, and CSI for the odd subband of the second subband group.

[0151] As an example, the N CSI groups each include CSIs from different subbands or subband groups.

[0152] As an example, each of the N CSI groups includes at least one of CQI, subband differential CQI, and partial parameters of the precoding matrix.

[0153] As an example, each of the N CSI groups includes one or more of CQI, subband differential CQI, PMI subband information field, and codebook index.

[0154] As an example, at least two of the N CSI groups each include different parameters of the precoding matrix.

[0155] As an example, some or all of the N CSI groups for the first subband group include different parameters of the precoding matrix for the first subband group, and some or all of the N CSI groups for the second subband group include different parameters of the precoding matrix for the second subband group.

[0156] As an example, some or all of the N CSI groups for the first subband group respectively include different PMI domains for the first subband group, and some or all of the N CSI groups for the second subband group respectively include different PMI domains for the second subband group.

[0157] Typically, the PMI subband information field or the PMI field includes some parameters of the precoding matrix.

[0158] As an example, the N CSI groups include Group 0 CSI for the first sub-band group, Group 1 CSI for the first sub-band group, Group 2 CSI for the first sub-band group, Group 0 CSI for the second sub-band group, Group 1 CSI for the second sub-band group, and Group 2 CSI for the second sub-band group.

[0159] As an example, the N CSI groups include Group 1 CSI for the first sub-band group, Group 2 CSI for the first sub-band group, Group 1 CSI for the second sub-band group, and Group 2 CSI for the second sub-band group.

[0160] As an example, Group 0CSI, Group 1CSI, and Group 2CSI each include different parameters of the precoding matrix; Group 0CSI includes i 1,1 i 1,2 and i 1,8,l Group 1 CSI includes i 1,5 i 1,6,l i 1,7,l An integer number of highest priority elements, i 2,3,l i 2,4,l An integer number of highest priority elements, and i 2,5,l An integer number of highest priority elements; Group 2CSI includes i 1,7,l An integer number of lowest priority elements, i 2,4,l An integer number of lowest priority elements, and i 2,5,l An integer number of lowest-priority elements.

[0161] As an example, Group 0CSI, Group 1CSI, and Group 2CSI each include different parameters of the precoding matrix, and the specific definitions can be found in section 5.2.3 of 3GPP TS38.214.

[0162] As an example, each of the N CSI groups includes at least one of CQI and precoding-related information.

[0163] As one embodiment, the precoding-related information includes a precoding matrix, a channel matrix, or an eigenvector of the channel matrix.

[0164] As one embodiment, the precoding-related information includes PMI (precoding matrix indicator), PMI field, or PMI subband information field.

[0165] As an example, the precoding-related information indicates the precoding matrix or a portion of the parameters in the precoding matrix.

[0166] As one example, the precoding-related information includes at least one index in a codebook.

[0167] The codebook mentioned above may correspond to a type I codebook, a type II codebook, an enhanced type II codebook, or a codebook indicated by a base station, etc.

[0168] As an example, the precoding-related information includes information generated after reasoning from one of the precoding matrix, the channel matrix, or the eigenvectors of the channel matrix.

[0169] As an example, the precoding-related information includes a portion of the information generated after reasoning from one of the precoding matrix, the channel matrix, or the eigenvectors of the channel matrix.

[0170] In the above implementation, the structure and parameters of the AI ​​model used for inference are known to the first node. For example, they may be obtained by downloading from a network device, or they may be specified in a standard, or they may be implementation-related to the first node (i.e., determined by the hardware vendor of the first node).

[0171] Typical AI model structures include Transformer architecture, RNN (Recurrent Neural Network), CNN (Conventional Neural Network), etc., or hybrid models composed of multiple models.

[0172] As an example, the condition that the N CSI groups are all conditioned by the first rank indication includes: the number of columns of each precoding matrix indicated by the N CSI groups is the rank indicated by the first rank indication.

[0173] As an example, the condition that the N CSI groups are all conditioned on the first rank indication includes: each CQI indicated by the N CSI groups is assumed to be the layer number of the transport block as indicated by the first rank indication.

[0174] As an example, the condition that the N CSI groups are all based on the first rank indication includes: the calculation or generation of the N CSI groups assumes that the rank is the rank indicated by the first rank indication.

[0175] Typically, the carrier targeted by all CSI groups for the first subband group in the N CSI groups is the carrier in which the first subband group is located, and the carrier targeted by all CSI groups for the second subband group in the N CSI groups is the carrier in which the second subband group is located.

[0176] Typically, the carrier targeted by all CSI groups for the first subband group in the N CSI groups is the first carrier in which the first subband group is located, and the carrier targeted by all CSI groups for the second subband group in the N CSI groups is the second carrier in which the second subband group is located.

[0177] Typically, the carrier targeted by any one of the N CSI groups is the carrier of the subband group targeted by any one of the N CSI groups.

[0178] Typically, the carrier targeted by any CSI group of the first sub-band group is the carrier in which the first sub-band group is located, and the carrier targeted by any CSI group of the second sub-band group is the carrier in which the second sub-band group is located.

[0179] Typically, the carrier targeted by any CSI group of the first sub-band group is the first carrier in which the first sub-band group is located, and the carrier targeted by any CSI group of the second sub-band group is the second carrier in which the second sub-band group is located.

[0180] As an example, the priority of any CSI group among the N CSI groups depends on the carrier to which the CSI group targets, including: the priority of any CSI group among the N CSI groups depends on the subband group to which the CSI group targets.

[0181] As an example, the priority of any CSI group among the N CSI groups depends on the subband group to which the CSI group targets, including: the priority of any CSI group among the N CSI groups depends on the subband or the carrier to which the subband group belongs.

[0182] As an example, the priority of any CSI group among the N CSI groups depends on the subband group to which the subband to which the CSI group targets is: the priority of any CSI group among the N CSI groups depends on the subband group to which the subband to which the CSI group targets belongs.

[0183] As one embodiment, the first report includes a first rank indicator and N CSI groups, or the first report includes a first rank indicator and a subset of the N CSI groups with higher priority.

[0184] As an example, the omission of the N CSI groups is in descending order of priority; when a CSI of a certain priority is omitted, all CSIs of that priority are omitted.

[0185] As an example, the omission of the N CSI groups is in descending order of priority; when a CSI of a certain priority is omitted, every CSI group at that priority is also omitted.

[0186] Example 2

[0187] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of this application, as shown in the attached diagram. Figure 2 As shown.

[0188] Appendix Figure 2The network architecture 200 is described. The network architecture 200 is a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system, or a 5G+ network architecture, or a 6G network architecture, or a network architecture adopted in future evolutions by 3GPP; the network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System), or 6GS (6G System); the network architecture 200 includes at least one of UE (User Equipment) 201, RAN (Radio Access Network) 202, core network 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. The network architecture 200 can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the network architecture 200 provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The RAN includes node 203. The RAN may also include other nodes 204. Node 203 provides user and control plane protocol termination toward UE 201. Node 203 may be connected to other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. Node 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter-receiver node), or some other suitable term. The core network 210 is a 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is a 6GC; node 203 provides UE 201 with an access point to the core network 210.Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. Node 203 is connected to the core network 210 via an S1 / NG interface. The core network 210 includes an MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the core network 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. Internet services 230 include operator-compliant Internet protocol services, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0189] As an example, the first node includes the UE201.

[0190] As one embodiment, the second node includes the node 203.

[0191] As one embodiment, the second node includes the core network 210.

[0192] As one embodiment, the second node includes the node 203 and the core network 210.

[0193] The above methods facilitate the flexible deployment of AI models on network devices.

[0194] As an example, node 203 is a macrocell base station.

[0195] As an example, node 203 is a microcell base station.

[0196] As an example, node 203 is a PicoCell base station.

[0197] As an example, node 203 is a femtocell.

[0198] As an example, node 203 is a base station device that supports large latency differences.

[0199] As an example, node 203 is a flight platform device.

[0200] As one example, node 203 is a satellite device.

[0201] As an example, the wireless link between the UE201 and the node203 includes a cellular link.

[0202] As an example, the first node and the second node in this application are the UE201 and the node203, respectively.

[0203] As an example, the first reporting configuration is generated in node 203.

[0204] As an example, the target recipient of the first reporting configuration includes the UE201.

[0205] As an example, the first report is generated in the UE201.

[0206] As an example, the target recipient of the first report includes the node 203.

[0207] Example 3

[0208] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application, as shown in the attached diagram. Figure 3 As shown.

[0209] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture for the control plane 300 between the first communication node device (UE, gNB, or RSU in V2X) and the second communication node device (gNB, UE, or RSU in V2X), or between two UEs, is illustrated using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. Layer 1 will be referred to as PHY 301 in this document. Layer 2 (L2 layer) 305, above PHY 301, is responsible for the link between the first and second communication node devices, or between two UEs. Layer 2 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. PDCP sublayer 304 also provides security through encrypted data packets and supports cross-cell mobility between second communication node devices and the first communication node device. RLC sublayer 303 provides upper layer data packet segmentation and reassembly, retransmission of lost data packets, and data packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell between the first communication node devices. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second and first communication node devices. The radio protocol architecture of user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture for the first and second communication node devices in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for physical layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355 and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS streams and data radio bearers (DRBs) to support service diversity. Although not illustrated, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, server, etc.).

[0210] As an example, Appendix Figure 3 The wireless protocol architecture described above is applicable to the first node.

[0211] As an example, Appendix Figure 3 The wireless protocol architecture described above is applicable to the second node.

[0212] As an example, the higher layer mentioned in this application refers to the layer above the physical layer.

[0213] As an example, the first reporting configuration is generated in the RRC sublayer 306.

[0214] As an example, the first report is generated in the PHY301 or the PHY351.

[0215] As an example, the first report is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0216] Example 4

[0217] Example 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown. (Attached) Figure 4 This is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in the access network.

[0218] The first communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0219] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0220] In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper-layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. In DL (Downlink), the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operation, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for L1 layer (i.e., physical layer). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and constellation mapping based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, generating one or more parallel... The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time and / or frequency domains, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into an RF stream, which is then provided to a different antenna 420.

[0221] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any parallel stream destined for the second communication device 450. Symbols on each parallel stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted over the physical channel by the first communication device 410. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2 (L2). The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the DL (Layered Logic), the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer packets from the core network. The upper-layer packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 (L3) for L3 processing. The controller / processor 459 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0222] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper-layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions at the first communication device 410 described in the DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0223] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 storing program code and data. The memory 476 may be referred to as computer-readable media. The controller / processor 475 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer data packets from the second communication device 450. Error detection is performed from the NACK protocol to support HARQ operation.

[0224] As one embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 means at least: receiving a first reporting configuration, the first reporting configuration indicating a first subband group and a second subband group, the first subband group and the second subband group respectively on two carriers, the first subband group including one or more subbands, and the second subband group including one or more subbands; transmitting a first report; wherein the first report includes a first rank indication and at least one CSI group from N CSI groups, N being a positive integer greater than 1; the at least one CSI group from the N CSI groups is directed to the first subband group, the at least one CSI group from the N CSI groups is directed to the second subband group, and all N CSI groups are conditional on the first rank indication; the priority of any CSI group from the N CSI groups depends on the carrier to which that CSI group is directed.

[0225] As one embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: receiving a first reporting configuration indicating a first subband group and a second subband group, the first subband group and the second subband group being on two carriers respectively, the first subband group including one or more subbands, and the second subband group including one or more subbands; sending a first report; wherein the first report includes a first rank indication and at least one CSI group from N CSI groups, N being a positive integer greater than 1; the at least one CSI group from the N CSI groups is directed to the first subband group, the at least one CSI group from the N CSI groups is directed to the second subband group, and the N CSI groups are all conditional on the first rank indication; the priority of any CSI group from the N CSI groups depends on the carrier to which the any CSI group is directed.

[0226] As one embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 means at least: transmitting a first reporting configuration, the first reporting configuration indicating a first subband group and a second subband group, the first subband group and the second subband group respectively on two carriers, the first subband group including one or more subbands, and the second subband group including one or more subbands; receiving a first report; wherein the first report includes a first rank indication and at least one CSI group from N CSI groups, N being a positive integer greater than 1; the at least one CSI group from the N CSI groups is directed to the first subband group, the at least one CSI group from the N CSI groups is directed to the second subband group, and all N CSI groups are conditional on the first rank indication; the priority of any CSI group from the N CSI groups depends on the carrier to which that CSI group is directed.

[0227] As one embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: sending a first reporting configuration indicating a first subband group and a second subband group, the first subband group and the second subband group being on two carriers respectively, the first subband group including one or more subbands, and the second subband group including one or more subbands; receiving a first report; wherein the first report includes a first rank indication and at least one CSI group from N CSI groups, N being a positive integer greater than 1; the at least one CSI group from the N CSI groups is directed to the first subband group, the at least one CSI group from the N CSI groups is directed to the second subband group, and the N CSI groups are all conditional on the first rank indication; the priority of any CSI group from the N CSI groups depends on the carrier to which the any CSI group is directed.

[0228] As an example, the first node in this application includes the second communication device 450.

[0229] As an example, the second node in this application includes the first communication device 410.

[0230] As an example, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first reporting configuration in this application; at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to transmit the first reporting configuration in this application.

[0231] As an example, at least one of {the antenna 452, the transmitter 454, the transmitter processor 468, the multi-antenna transmitter processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to transmit the first report in this application; at least one of {the antenna 420, the receiver 418, the receiver processor 470, the multi-antenna receiver processor 472, the controller / processor 475, and the memory 476} is used to receive the first report in this application.

[0232] Example 5

[0233] Example 5 illustrates a flowchart of the transmission between a first node and a second node according to an embodiment of this application; as attached. Figure 5 As shown.

[0234] In the appendix Figure 5 In this application, the second node N1 and the first node U1 are communication nodes that transmit data via an air interface. The operation described herein is sending, and the execution is receiving.

[0235] For the first node U1, the first reported configuration is received in step S511; the first report is sent in step S512.

[0236] For the second node N1, a first reporting configuration is sent in step S521; the first reporting is received in step S522.

[0237] In Embodiment 5, the first reporting configuration indicates a first subband group and a second subband group, which are respectively on two carriers. The first subband group includes one or more subbands, and the second subband group includes one or more subbands. The first reporting includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1. At least one CSI group from the N CSI groups is for the first subband group, and at least one CSI group from the N CSI groups is for the second subband group. All N CSI groups are conditional on the first rank indicator. The priority of any CSI group from the N CSI groups depends on the carrier to which that CSI group is targeted.

[0238] As an example, the first node U1 is the first node in this application.

[0239] As an example, the second node N1 is the second node in this application.

[0240] As one embodiment, the air interface between the second node N1 and the first node U1 includes a wireless interface between the base station equipment and the user equipment.

[0241] As one embodiment, the air interface between the second node N1 and the first node U1 includes a wireless interface between the relay node device and the user equipment.

[0242] As one embodiment, the air interface between the second node N1 and the first node U1 includes a wireless interface between user equipment and user equipment.

[0243] As one example, the second node N1 is the serving cell sustaining base station of the first node U1.

[0244] Examples 6A-6B

[0245] Examples 6A-6B illustrate schematic diagrams of a first sub-band group and a second sub-band group according to an embodiment of this application, respectively; as shown in the attached figures. Figures 6A-6B As shown.

[0246] In Example 6A, the first subband group and the second subband group are on two carriers, and the two carriers belong to the same cell.

[0247] As an example, the first subband group and the second subband group belong to a BWP (bandwidth part) in a cell.

[0248] As an example, the first subband group and the second subband group constitute a BWP in a cell.

[0249] As one example, the first subband group and the second subband group are two BWPs in a cell.

[0250] As an example, the first subband group and the second subband group belong to two BWPs in a cell.

[0251] As one embodiment, the two carriers on the same cell include: the two carriers forming a cell.

[0252] As one embodiment, the two carriers on the same cell include: a cell includes each of the two carriers.

[0253] As one embodiment, the two carriers being on the same cell includes the two carriers being assigned the same cell identifier (ID).

[0254] As one embodiment, the two carriers on the same cell include: the available frequency domain resources of a cell are distributed across the two carriers.

[0255] As one embodiment, the two carriers on the same cell include: channels or signals in a cell can be distributed across the two carriers.

[0256] As one embodiment, the two carriers being on the same cell includes: configuring the domain or IE of the two carriers to belong to the IE of a configured cell.

[0257] As one embodiment, the two carriers being on the same cell includes the two carriers sharing the same cell identifier.

[0258] As one embodiment, the two carriers on the same cell include: the two carriers sharing the same synchronization signal.

[0259] As one embodiment, the two carriers on the same cell include: the two carriers sharing the same cell-specific information.

[0260] As one embodiment, the two carriers on the same cell include: the two carriers sharing the same SIB (system information block).

[0261] In Example 6B, the first subband group and the second subband group are on two carriers, and the two carriers belong to two cells respectively.

[0262] As one embodiment, the two carriers are located in two separate cells, and each carrier is assigned a different cell identifier (ID).

[0263] As an example, the two carriers are respectively located on two cells: the available frequency domain resources of the two cells are respectively distributed on the two carriers.

[0264] As one embodiment, the two carriers are respectively distributed on two cells: the channels or signals in the two cells are respectively distributed on the two carriers.

[0265] As one embodiment, the two carriers are respectively located in two cells: the domains or IEs of the two carriers are configured to belong to the IEs of different cells.

[0266] Regarding the "two carriers" in Examples 6A-6B, some specific implementation methods are given below:

[0267] As one embodiment, the first subband group and the second subband group are on two carriers, and the two carriers are either inter-band or intra-band non-contiguous.

[0268] As an example, each of the two carriers is a radio frequency (RF) carrier.

[0269] As an example, each of the two carriers is a baseband carrier.

[0270] As one example, each of the two carriers is a resource grid for a subcarrier interval.

[0271] As an example, each of the two carriers is a resource grid list.

[0272] As an example, each of the two carriers is a list of subcarriers spaced apart by a specific carrier.

[0273] As one example, each of the two carriers is a list of subcarriers spaced at a specific resource grid.

[0274] As one embodiment, each of the two carriers is a resource block grid or a subcarrier grid for a subcarrier interval.

[0275] As an example, each of the two carriers is a CC (component carrier).

[0276] As an example, each of the two carriers is a carrier in carrier aggregation (CA).

[0277] As an example, each of the two carriers is a carrier in Single Cell Carrier Aggregation (SCA).

[0278] As an example, each of the two carriers is a carrier in a single-cell multiple carrier.

[0279] As an example, each of the two carriers is a radio frequency channel.

[0280] As an example, each of the two carriers is a radio frequency channel after channelization.

[0281] As an example, each of the two carriers is a channel with a certain radio frequency channel bandwidth.

[0282] As one embodiment, the two carriers are inter-band.

[0283] As one embodiment, the two carriers are either inter-band or intra-band non-contiguous.

[0284] As an example, multi-carrier aggregation in a single cell only considers inter-band or discontinuous scenarios, reducing implementation and standard complexity.

[0285] As an example, two of the two carriers are contiguous within the band.

[0286] As an example, multi-carrier aggregation considers consecutive carriers even in the case of a single cell, providing greater flexibility for network deployment and carrier configuration.

[0287] As one embodiment, the two carriers include either a primary carrier or an anchor carrier.

[0288] As an example, the carrier carrying SIB1 in the two carriers is either the main carrier or the anchor carrier.

[0289] As an example, the carrier with control resource set #0 or with initial BWP (bandwidth part) among the two carriers is the primary carrier or the anchor carrier.

[0290] As an example, one of the two carriers having a synchronization signal, a master information block, a system information block, a control resource set #0, and a common search space is a master carrier or an anchor carrier.

[0291] As an example, both carriers belong to the same frequency range (FR).

[0292] As an example, both carriers belong to frequency range 1 (FR1).

[0293] As an example, restricting the two carriers to the same frequency range (at least in the initial version) effectively utilizes the existing main fragmented spectrum while reducing implementation complexity.

[0294] As one example, the two carriers belong to different frequency ranges.

[0295] As an example, the two carriers are allowed to belong to different frequency ranges, which improves flexibility while ensuring forward compatibility.

[0296] As an example, the same mathematical structure is used on the two carriers.

[0297] As an example, the same subcarrier spacing is used on the two carriers.

[0298] As an example, restricting two carriers to use the same subcarrier spacing simplifies scheduling design.

[0299] As one example, two of the two carriers employ different subcarrier spacings.

[0300] As one example, it allows two carriers to use different subcarrier spacings, increasing flexibility and supporting a wider spectrum range.

[0301] Examples 7A-7B

[0302] Examples 7A-7B illustrate schematic diagrams of two carriers according to one embodiment of this application, as shown in the attached figures. Figures 7A-7B As shown. In the appendix Figures 7A-7BIn the diagram, the horizontal axis represents frequency, each thick-lined rectangle represents a resource grid, and the thin-lined rectangles within each resource grid represent subcarriers for a subcarrier interval, namely carrier #1 and carrier #2.

[0303] In Example 7A, the first subband group and the second subband group are on two carriers, and the two carriers belong to the same cell; the two carriers respectively include resources in two resource grids for the same subcarrier interval.

[0304] In the appendix Figure 7A In this context, the two carriers each include resources from two different resource grids.

[0305] As an example, the frequency positions of the subcarriers in the two resource grids for the same subcarrier spacing depend on two reference frequencies.

[0306] In the above embodiments, the two carriers correspond to two resource grids respectively, and the two resource grids have their own reference frequencies, thereby improving the flexibility of resource allocation.

[0307] As an example, the frequency positions of subcarriers in two resource grids for the same subcarrier spacing depend on the same reference frequency.

[0308] In the above embodiments, the two carriers correspond to two resource grids respectively, and the two resource grids share the same reference frequency, which reduces the implementation complexity.

[0309] As one embodiment, the resources on the two carriers that are respectively included in two resource grids for the same subcarrier interval include: the two carriers are two resource grids for the same subcarrier interval.

[0310] As one embodiment, the resources on the two carriers that are respectively included in two resource grids for the same subcarrier interval include: the two carriers that are respectively included in two resource grids for the same subcarrier interval.

[0311] As one embodiment, the resources on the two carriers that are respectively included in two resource grids for the same subcarrier interval include: the two resource grids for the same subcarrier interval correspond to the two carriers respectively.

[0312] As one embodiment, the resources in two resource grids for the same subcarrier interval on the two carriers include: the two resource grids for the same subcarrier interval are respectively mapped on the two carriers.

[0313] As one embodiment, the resources in two resource grids for the same subcarrier interval on the two carriers include: the two resource grids for the same subcarrier interval are respectively distributed on the two carriers.

[0314] As one embodiment, the resources on the two carriers respectively include the resources in the two resource grids for the same subcarrier interval: the two resource grids for the same subcarrier interval respectively include the resources on the two carriers.

[0315] In Example 7B, the first subband group and the second subband group are on two carriers, which belong to the same cell; the two carriers each include different resources in the same resource grid for a subcarrier interval.

[0316] In the appendix Figure 7B In this context, the same resource grid is distributed across the two carriers.

[0317] As an example, the frequency position of the subcarriers in the same resource grid for a subcarrier spacing depends on a reference frequency.

[0318] As an example, two carriers share the same resource grid, reducing resource fragmentation and improving resource utilization.

[0319] The following provides a specific implementation of "the frequency position of a subcarrier in a resource grid for a subcarrier interval depends on a reference frequency" in Examples 7A-7B:

[0320] As one example, the frequency position of a subcarrier in a resource grid for a subcarrier interval depends on a reference frequency, including: the frequency position of a subcarrier in a resource grid for a subcarrier interval is related to a reference frequency.

[0321] As one embodiment, the frequency position of a subcarrier in a resource grid for a subcarrier interval depends on a reference frequency, including: a reference frequency being used to determine the frequency position of a subcarrier in a resource grid for a subcarrier interval.

[0322] As one embodiment, the frequency position of a subcarrier in a resource grid for a subcarrier interval depending on a reference frequency includes: the frequency position of the center subcarrier in a resource grid for a subcarrier interval depending on a reference frequency.

[0323] As one embodiment, the frequency position of a subcarrier in a resource grid for a subcarrier interval depending on a reference frequency includes: the frequency position of a boundary subcarrier in a resource grid for a subcarrier interval depending on a reference frequency.

[0324] As an example, the frequency position of a subcarrier in a resource grid for a subcarrier interval depending on a reference frequency includes: the absolute value of the center frequency (or boundary frequency) in a resource grid for a subcarrier interval depending on a reference frequency.

[0325] As one embodiment, the frequency position of a subcarrier in a resource grid for a subcarrier interval depending on a reference frequency includes: the frequency position of a subcarrier in a resource grid for a subcarrier interval is referenced to a reference frequency.

[0326] As an example, the frequency position of a subcarrier in a resource grid for a subcarrier interval depends on a reference frequency, including: the frequency position of the boundary subcarrier in a resource grid for a subcarrier interval is the index of the common resource block to which the boundary subcarrier belongs, and the reference frequency is the frequency (center frequency or lower boundary frequency) of the 0th subcarrier (or the subcarrier with index equal to 0) in the lowest indexed common resource block.

[0327] As an example, the frequency position of a subcarrier in a resource grid for a subcarrier interval depends on a reference frequency, including: the reference frequency being the frequency (center frequency or lower boundary frequency) of the 0th subcarrier (or the subcarrier with index equal to 0) in the lowest indexed common resource block; and the frequency position of the boundary subcarrier in a resource grid for a subcarrier interval being the index of the common resource block to which the boundary subcarrier belongs and the index of the boundary subcarrier within its respective common resource block.

[0328] As an example, the frequency position of a subcarrier in a resource grid for a subcarrier interval depending on a reference frequency includes: there is a corresponding frequency offset between the boundary subcarrier of the resource grid for a subcarrier interval and the reference frequency.

[0329] As a supplementary embodiment of the above embodiments, the corresponding frequency offset is configured or predefined.

[0330] As a supplementary embodiment of the above embodiments, the corresponding frequency offset is the number of resource blocks using the targeted subcarrier interval.

[0331] As a supplementary embodiment of the above embodiments, the corresponding frequency offset is the number of subcarriers using the targeted subcarrier spacing.

[0332] The following is a specific implementation method for a "reference frequency":

[0333] As an example, the reference frequency is configurable or standard-defined.

[0334] As an example, the reference frequency is frequency point A.

[0335] As an example, the reference frequency is an absolute frequency.

[0336] As an example, the reference frequency is the absolute frequency represented by an ARFCN (Absolute Radio Frequency Channel Number) value.

[0337] As an example, the reference frequency is a reference frequency used to configure the resource grid.

[0338] As an example, the reference frequency can be within or outside the configured resource grid.

[0339] As an example, the reference frequency is the common reference point of the resource block grid.

[0340] As an example, the reference frequency is the center frequency of subcarrier 0 in common resource block 0 (CRB).

[0341] As an example, the reference frequency is the boundary frequency of subcarrier 0 in public resource block 0.

[0342] As an example, the reference frequency is a frequency that is commonly aligned by common resource blocks using different subcarrier spacings.

[0343] As an example, the reference frequency is the center frequency or boundary frequency of subcarrier number 11 in the largest numbered common resource block (CRB).

[0344] Examples 8A-8B

[0345] Examples 8A-8B respectively illustrate schematic diagrams of the priority of CSI groups according to an embodiment of this application; as shown in the appendix. Figures 8A-8B As shown. In the appendix Figures 8A-8B In the diagram, each rectangle represents a sub-band.

[0346] In Example 8A, among the N CSI groups, the priority of each CSI group for the first carrier is higher than the priority of each CSI group for the second carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0347] As an example, at least two of the N CSI groups have different priorities for the first carrier, and at least two of the N CSI groups have different priorities for the second carrier; in the N CSI groups, each CSI group for the first carrier has a higher priority than each CSI group for the other carrier among the two carriers; wherein, the first carrier is one of the two carriers.

[0348] As an example, any two CSI groups among the N CSI groups have different priorities; among the N CSI groups, each CSI group for a first carrier has a higher priority than each CSI group for the other carrier among the two carriers besides the first carrier; wherein, the first carrier is one of the two carriers.

[0349] In Example 8B, among the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0350] As an example, in the N CSI groups, a CSI group for the first carrier and a CSI group for the second carrier have the same priority; in the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier among the two carriers.

[0351] As an example, any two CSI groups among the N CSI groups have different priorities; among the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0352] The following describes the specific implementation of the "first carrier" in Examples 8A-8B:

[0353] As an example, the first carrier is the default one of the two carriers.

[0354] As an example, the first reporting configuration indicates the two carriers, and the first carrier is the first carrier indicated by the first reporting configuration.

[0355] As an example, the first subband group is the first subband group indicated by the first reporting configuration, and the first subband group is on the first carrier.

[0356] As an example, the first reporting configuration is used to indicate the first carrier from the two carriers.

[0357] As an example, the first carrier is which of the two carriers is configurable.

[0358] In the above method, the preferred carrier is configurable, which improves flexibility.

[0359] As an example, the first carrier is the carrier with the largest bandwidth among the two carriers.

[0360] In the above method, CSI on the carrier with the maximum bandwidth is given higher priority.

[0361] As an example, the subband group with the largest number of subbands in the first subband group and the second subband group is on the first carrier.

[0362] As an example, the subband group with the largest number of resource blocks included in the first subband group and the second subband group is on the first carrier.

[0363] In the above method, the subband group with the most subbands or resource blocks is given higher priority.

[0364] As an example, the first carrier is either the primary carrier or the anchor carrier among the two carriers.

[0365] As one embodiment, the main carrier or the anchor carrier carries SIB1.

[0366] As one embodiment, the primary carrier or the anchor carrier has a control resource set #0 or an initial bandwidth part (BWP).

[0367] As one embodiment, the primary carrier or the anchor carrier has one or more of the following: a synchronization signal, a primary information block, a system information block, a control resource set #0, and a common search space.

[0368] The above method ensures that the CSI on the primary carrier or anchor carrier has a higher priority, thus guaranteeing the reliability and robustness of the system.

[0369] As one embodiment, the first carrier has a control resource set #0 or includes an initial BWP (bandwidth part).

[0370] In the above method, it is guaranteed that carriers with control resource set #0 or including the initial BWP have higher priority. The benefits include ensuring system reliability and robustness.

[0371] As one embodiment, the first carrier has one or more of the following: a synchronization signal, a master information block, a system information block, a control resource set #0, and a common search space.

[0372] In the above method, CSI on carriers having one or more of the following parameters is guaranteed to have higher priority: synchronization signal, master information block, system information block, control resource set #0, and common search space. Benefits include ensuring system reliability and robustness.

[0373] Example 9

[0374] Example 9 illustrates a schematic diagram of the priority of CSI groups according to another embodiment of this application; as attached Figure 9 As shown.

[0375] In Example 9, each of the N CSI groups corresponds to an index, and some or all of the N CSI groups correspond to different indices. The priority of any CSI group in the N CSI groups also depends on the index corresponding to that CSI group.

[0376] In the appendix Figure 9 The example illustrates the case where N=4; in case A, the indices corresponding to the N CSI groups are all different; in case B, the indices of the CSI group for the first carrier and the CSI group for the second carrier can be the same among the N CSI groups.

[0377] As an example, in the N CSI groups, the priority of each CSI group for a first carrier is higher than the priority of each CSI group for a second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier; each of the N CSI groups corresponds to an index; among all CSI groups for the same carrier in both the first and second carriers, the priority of the CSI group corresponding to the smaller index is higher than the priority of the CSI group corresponding to the larger index; wherein...

[0378] Any two CSI groups among the N CSI groups that are for the same carrier in the first carrier and the second carrier correspond to different indices, and one CSI group among the N CSI groups that is for the first carrier and one CSI group among the N CSI groups that is for the second carrier correspond to the same index.

[0379] or,

[0380] The indices corresponding to any two of the N CSI groups are different.

[0381] As an example, among the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier; each of the N CSI groups corresponds to an index; among all CSI groups for the same carrier in the first and second carriers, the CSI group corresponding to the smaller index has a higher priority than the CSI group corresponding to the larger index; wherein...

[0382] Any two CSI groups among the N CSI groups that are for the same carrier in the first carrier and the second carrier correspond to different indices, and one CSI group among the N CSI groups that is for the first carrier and one CSI group among the N CSI groups that is for the second carrier correspond to the same index.

[0383] or,

[0384] The indices corresponding to any two of the N CSI groups are different.

[0385] As an example, among the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier; each of the N CSI groups corresponds to an index; any two CSI groups for the same carrier among the first and second carriers correspond to different indices, and one CSI group for the first carrier and one CSI group for the second carrier among the N CSI groups correspond to the same index; among the N CSI groups, two CSI groups corresponding to the same index have the same priority, and the CSI group corresponding to a smaller index has a higher priority than the CSI group corresponding to a larger index.

[0386] As an example, any two CSI groups among the N CSI groups have different priorities; each CSI group among the N CSI groups corresponds to an index; any two CSI groups among the N CSI groups for the same carrier in the first carrier and the second carrier correspond to different indices, and one CSI group among the N CSI groups for the first carrier and one CSI group among the N CSI groups for the second carrier correspond to the same index; among all CSI groups among the N CSI groups for the same carrier in the first carrier and the second carrier, the CSI group corresponding to the smaller index has a higher priority than the CSI group corresponding to the larger index; among the CSI groups for the first carrier and the CSI groups for the second carrier corresponding to the same index, the CSI group for the first carrier has a higher priority than the CSI group for the second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0387] As an example, any two CSI groups among the N CSI groups correspond to different indices.

[0388] As an example, any two CSI groups among the N CSI groups that are for the same carrier in the first carrier and the second carrier correspond to different indices, and one CSI group among the N CSI groups that is for the first carrier and one CSI group among the N CSI groups that is for the second carrier correspond to the same index.

[0389] As an example, any two CSI groups in the N CSI groups that are for the same sub-band group in the first sub-band group and the second sub-band group correspond to different indices, and one CSI group in the N CSI groups that is for the first sub-band group and one CSI group in the N CSI groups that is for the second sub-band group correspond to the same index.

[0390] As an example, at least two of the N CSI groups correspond to different indices, and at least two of the N CSI groups correspond to the same index.

[0391] As an example, the index corresponding to each of the N CSI groups is 0 or a positive integer.

[0392] As an example, the index corresponding to each of the N CSI groups is a positive integer.

[0393] As an example, the index corresponding to any one of the N CSI groups is the index of the CSI group.

[0394] As an example, among the N CSI groups, the CSI group corresponding to the smaller index has a higher priority than the CSI group corresponding to the larger index.

[0395] As an example, among all CSI groups in the N CSI groups for the same carrier in the first carrier and the second carrier, the CSI group with the smaller index has a higher priority than the CSI group with the larger index.

[0396] As an example, all CSI groups among the N CSI groups that are for the same carrier in the first carrier and the second carrier include: all CSI groups among the N CSI groups that are for the same subband group in the first subband group and the second subband group.

[0397] In Example 9, the specific implementation of the "first carrier" is described in Examples 8A-8B, and will not be repeated here.

[0398] Example 10

[0399] Example 10 illustrates a schematic diagram of the priority of CSI groups according to another embodiment of this application; as attached Figure 10 As shown.

[0400] In Example 10, N is 4, and the N CSI groups are respectively for all even subbands in the first subband group, all odd subbands in the first subband group, all even subbands in the second subband group, and all odd subbands in the second subband group; the priority of any CSI group in the N CSI groups also depends on whether any CSI group is for an even subband or an odd subband.

[0401] Typically, within the same sub-group in the first and second sub-groups, all sub-bands are numbered continuously in ascending order, with the lowest sub-band numbered 0; sub-bands with even numbers are even-numbered sub-bands, and sub-bands with odd numbers are even-numbered sub-bands.

[0402] As an example, the priority of any CSI group among the N CSI groups further depends on whether the CSI group targets an even-numbered subband or an odd-numbered subband, including: among the N CSI groups, the priority of the CSI group targeting an even-numbered subband is higher than the priority of the CSI group targeting an odd-numbered subband.

[0403] As an example, the priority of any CSI group among the N CSI groups further depends on whether the CSI group targets an even-numbered subband or an odd-numbered subband, including: among all CSI groups among the N CSI groups targeting the same subband group in the first subband group and the second subband group, the priority of the CSI group targeting an even-numbered subband is higher than the priority of the CSI group targeting an odd-numbered subband.

[0404] As an example, N is 4, and the N CSI groups are respectively for all even-numbered subbands in the first subband group, all odd-numbered subbands in the first subband group, all even-numbered subbands in the second subband group, and all odd-numbered subbands in the second subband group; in the N CSI groups, the priority of each CSI group for the first carrier is higher than the priority of each CSI group for the second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier among the two carriers; in all CSI groups in the N CSI groups for the same carrier in the first and second carriers, the priority of the CSI group for the even-numbered subbands is higher than the priority of the CSI group for the odd-numbered subbands.

[0405] As an example, in the N CSI groups, the priority of each CSI group for the first carrier is higher than the priority of each CSI group for the second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier; the N CSI groups are ordered in descending order of priority as follows: CSI groups for all even-numbered subbands in the first subband group, CSI groups for all even-numbered subbands in the second subband group, CSI groups for all odd-numbered subbands in the first subband group, and CSI groups for all odd-numbered subbands in the second subband group.

[0406] As an example, N is 4, and the N CSI groups respectively target all even-numbered subbands in the first subband group, all odd-numbered subbands in the first subband group, all even-numbered subbands in the second subband group, and all odd-numbered subbands in the second subband group; the subband groups targeting all even-numbered subbands in the first subband group and the subband groups targeting all even-numbered subbands in the second subband group have the same priority, the subband groups targeting all odd-numbered subbands in the first subband group and the subband groups targeting all odd-numbered subbands in the second subband group have the same priority, and the subband groups targeting all even-numbered subbands in the first subband group have a higher priority than the subband groups targeting all odd-numbered subbands in the first subband group; wherein, the first subband group is on a first carrier, and the second subband group is on a second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier among the two carriers.

[0407] As an example, the N CSI groups have different priorities; N is 4, and the N CSI groups are ordered from high to low priority as follows: CSI group for all even-numbered subbands in the first subband group, CSI group for all even-numbered subbands in the second subband group, CSI group for all odd-numbered subbands in the first subband group, and CSI group for all odd-numbered subbands in the second subband group; wherein, the first subband group is on the first carrier, and the second subband group is on the second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier among the two carriers.

[0408] In Example 10, the specific implementation of the "first carrier" is described in Examples 8A-8B, and will not be repeated here.

[0409] Examples 11A-11B

[0410] Examples 11A-11B respectively illustrate schematic diagrams illustrating the relationship between the priorities of N CSI groups according to an embodiment of this application; as shown in the appendix. Figure 11A-11B As shown.

[0411] In Example 11A, among the N CSI groups, at least two CSI groups have the same priority, and at least two CSI groups have different priorities.

[0412] As an example, among the N CSI groups, there is one CSI group for the first carrier and one CSI group for the second carrier with the same priority.

[0413] As an example, in the N CSI groups, the priority of each CSI group for the first carrier and the priority of each CSI group for the second carrier are the same.

[0414] As an example, among the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier; each of the N CSI groups corresponds to an index; any two CSI groups for the same carrier among the first and second carriers correspond to different indices, and one CSI group for the first carrier and one CSI group for the second carrier among the N CSI groups correspond to the same index; among the N CSI groups, two CSI groups corresponding to the same index have the same priority, and the CSI group corresponding to a smaller index has a higher priority than the CSI group corresponding to a larger index.

[0415] As an example, N is 4, and the N CSI groups respectively target all even-numbered subbands in the first subband group, all odd-numbered subbands in the first subband group, all even-numbered subbands in the second subband group, and all odd-numbered subbands in the second subband group; the subband groups targeting all even-numbered subbands in the first subband group and the subband groups targeting all even-numbered subbands in the second subband group have the same priority, the subband groups targeting all odd-numbered subbands in the first subband group and the subband groups targeting all odd-numbered subbands in the second subband group have the same priority, and the subband groups targeting all even-numbered subbands in the first subband group have a higher priority than the subband groups targeting all odd-numbered subbands in the first subband group; wherein, the first subband group is on a first carrier, and the second subband group is on a second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier among the two carriers.

[0416] In Example 11B, the priorities of the N CSI groups are different from each other.

[0417] As an example, the priorities of the N CSI groups are all different; among the N CSI groups, the priority of each CSI group for a first carrier is higher than the priority of each CSI group for a second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier; each of the N CSI groups corresponds to an index; among all CSI groups for the same carrier in both the first and second carriers, the priority of the CSI group corresponding to the smaller index is higher than the priority of the CSI group corresponding to the larger index; wherein...

[0418] Any two CSI groups among the N CSI groups that are for the same carrier in the first carrier and the second carrier correspond to different indices, and one CSI group among the N CSI groups that is for the first carrier and one CSI group among the N CSI groups that is for the second carrier correspond to the same index.

[0419] or,

[0420] The indices corresponding to any two of the N CSI groups are different.

[0421] As an example, any two CSI groups among the N CSI groups have different priorities; each CSI group among the N CSI groups corresponds to an index; any two CSI groups among the N CSI groups for the same carrier in the first carrier and the second carrier correspond to different indices, and one CSI group among the N CSI groups for the first carrier and one CSI group among the N CSI groups for the second carrier correspond to the same index; among all CSI groups among the N CSI groups for the same carrier in the first carrier and the second carrier, the CSI group corresponding to the smaller index has a higher priority than the CSI group corresponding to the larger index; among the CSI groups for the first carrier and the CSI groups for the second carrier corresponding to the same index, the CSI group for the first carrier has a higher priority than the CSI group for the second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0422] As an example, the priorities of the N CSI groups are all different; N is 4, and the N CSI groups are respectively for all even-numbered subbands in the first subband group, all odd-numbered subbands in the first subband group, all even-numbered subbands in the second subband group, and all odd-numbered subbands in the second subband group; in the N CSI groups, the priority of each CSI group for the first carrier is higher than the priority of each CSI group for the second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier among the two carriers; in all CSI groups in the N CSI groups for the same carrier in the first and second carriers, the priority of the CSI group for the even-numbered subbands is higher than the priority of the CSI group for the odd-numbered subbands.

[0423] As an example, N is 4, and the priorities of the N CSI groups are all different; among the N CSI groups, the priority of each CSI group for the first carrier is higher than the priority of each CSI group for the second carrier; wherein, the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier; the N CSI groups are ordered from high to low priority as follows: CSI groups for all even-numbered subbands in the first subband group, CSI groups for all even-numbered subbands in the second subband group, CSI groups for all odd-numbered subbands in the first subband group, and CSI groups for all odd-numbered subbands in the second subband group.

[0424] As an example, any two CSI groups among the N CSI groups have different priorities; N is 4, and the N CSI groups are ordered from high to low priority as follows: CSI groups for all even-numbered subbands in the first subband group, CSI groups for all even-numbered subbands in the second subband group, CSI groups for all odd-numbered subbands in the first subband group, and CSI groups for all odd-numbered subbands in the second subband group; wherein the first subband group is on the first carrier, and the second subband group is on the second carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier besides the first carrier among the two carriers.

[0425] In Examples 11A-11B, the specific implementation of the "first carrier" is described in Examples 8A-8B, and will not be repeated here.

[0426] Example 12

[0427] Example 12 illustrates a schematic diagram of the priority of N CSI groups according to an embodiment of this application; as attached. Figure 12 As shown.

[0428] In Example 12, N is 4, and the N CSI groups are respectively for all even-numbered subbands in the first subband group, all odd-numbered subbands in the first subband group, all even-numbered subbands in the second subband group, and all odd-numbered subbands in the second subband group; the subband groups for all even-numbered subbands in the first subband group and the subband groups for all even-numbered subbands in the second subband group have the same priority, the subband groups for all odd-numbered subbands in the first subband group and the subband groups for all odd-numbered subbands in the second subband group have the same priority, and the subband groups for all even-numbered subbands in the first subband group have a higher priority than the subband groups for all odd-numbered subbands in the first subband group;

[0429] or,

[0430] N is 4, and each of the N CSI groups corresponds to an index. The N CSI groups are respectively a CSI group for the first carrier and corresponding to the first index, a CSI group for the first carrier and corresponding to the second index, a CSI group for the second carrier and corresponding to the first index, and a CSI group for the second carrier and corresponding to the second index. The CSI group for the first carrier and corresponding to the first index and the CSI group for the second carrier and corresponding to the first index have the same priority, and the CSI group for the first carrier and corresponding to the second index and the CSI group for the second carrier and corresponding to the second index have the same priority, but the priority of the CSI group for the first carrier and corresponding to the first index is higher than the priority of the CSI group for the first carrier and corresponding to the second index.

[0431] Example 12 is a specific implementation of Examples 8B, 9, 10, and 11A.

[0432] The specific implementation methods of the "first index" and "second index" in Example 12 are given below:

[0433] As an example, the first index is 1 and the second index is 2.

[0434] As an example, the first index is 0 and the second index is 1.

[0435] As an example, the first index is smaller than the second index.

[0436] As an example, the first index is greater than the second index.

[0437] In Example 12, the specific implementation of the "first carrier" is described in Examples 8A-8B, and will not be repeated here.

[0438] Examples 13A-13B

[0439] Examples 13A-13B illustrate schematic diagrams of the priority of N CSI groups according to another embodiment of this application; as shown in the appendix. Figures 13A-13B As shown.

[0440] In Example 13A, N is 4, and the N CSI groups are respectively for all even-numbered subbands in the first subband group, all odd-numbered subbands in the first subband group, all even-numbered subbands in the second subband group, and all odd-numbered subbands in the second subband group; the N CSI groups are ordered from high to low priority as follows: the CSI group for all even-numbered subbands in the first subband group, the CSI group for all even-numbered subbands in the second subband group, the CSI group for all odd-numbered subbands in the first subband group, and the CSI group for all odd-numbered subbands in the second subband group;

[0441] or,

[0442] N is 4, and each of the N CSI groups corresponds to an index; the N CSI groups are respectively the CSI group for the first carrier and corresponding to the first index, the CSI group for the first carrier and corresponding to the second index, the CSI group for the second carrier and corresponding to the first index, and the CSI group for the second carrier and corresponding to the second index; the N CSI groups are ordered from high to low priority as follows: the CSI group for the first carrier and corresponding to the first index, the CSI group for the second carrier and corresponding to the first index, the CSI group for the first carrier and corresponding to the second index, and the CSI group for the second carrier and corresponding to the second index.

[0443] Example 13A is a specific implementation of Examples 8B, 9, 10, and 11B.

[0444] In Example 13B, N is 4, and the N CSI groups are respectively for all even-numbered subbands in the first subband group, all odd-numbered subbands in the first subband group, all even-numbered subbands in the second subband group, and all odd-numbered subbands in the second subband group; the N CSI groups are ordered from high to low priority as follows: the CSI group for all even-numbered subbands in the first subband group, the CSI group for all odd-numbered subbands in the first subband group, the CSI group for all even-numbered subbands in the second subband group, and the CSI group for all odd-numbered subbands in the second subband group;

[0445] or,

[0446] N is 4, and each of the N CSI groups corresponds to an index; the N CSI groups are respectively the CSI group for the first carrier and corresponding to the first index, the CSI group for the first carrier and corresponding to the second index, the CSI group for the second carrier and corresponding to the first index, and the CSI group for the second carrier and corresponding to the second index; the N CSI groups are ordered from high to low priority as follows: the CSI group for the first carrier and corresponding to the first index, the CSI group for the first carrier and corresponding to the second index, the CSI group for the second carrier and corresponding to the first index, and the CSI group for the second carrier and corresponding to the second index.

[0447] Example 13B is a specific implementation of Examples 8A, 9, 10, and 11B.

[0448] The specific implementation methods of the "first index" and "second index" in Examples 13A-13B are given below:

[0449] As an example, the first index is 1 and the second index is 2.

[0450] As an example, the first index is 0 and the second index is 1.

[0451] As an example, the first index is smaller than the second index.

[0452] As an example, the first index is greater than the second index.

[0453] As an example, the first index is 1, the second index is 2; the CSI group corresponding to the first index is Group 1CSI, and the CSI group corresponding to the second index is Group 2CSI.

[0454] In Examples 13A-13B, the specific implementation of the "first carrier" is described in Examples 8A-8B, and will not be repeated here.

[0455] Example 14

[0456] Example 14 illustrates a schematic diagram of the priority between a first CSI group and N CSI groups according to an embodiment of this application; as shown in the attached diagram. Figures 14A-14B As shown.

[0457] In Example 14A, the first report further includes a first CSI group, the priority of which is higher than the priority of each of the N CSI groups; wherein the first CSI group is for each of the first subband group and the second subband group.

[0458] As an example, the first rank indication belongs to the first CSI group.

[0459] As an example, the first rank indication does not belong to the first CSI group and the N CSI groups.

[0460] As an example, the first rank indication has a higher priority than the first CSI group.

[0461] As an example, the priority of the first rank indicator is the same as the priority of the first CSI group.

[0462] As an example, each of the N CSI groups corresponds to an index, the first CSI group corresponds to an index, and the index corresponding to the first CSI group is smaller than the index corresponding to each of the N CSI groups.

[0463] As an example, the first CSI group includes at least one of broadband CQI and broadband PMI.

[0464] As an example, the first CSI group includes at least one of the following: wideband CQI, PMI wideband information field, and codebook index.

[0465] As an example, the first CSI group includes at least one PMI domain.

[0466] As an example, the first CSI group includes broadband CSI.

[0467] As an example, the first CSI group is Group 0CSI.

[0468] In Example 14B, the first report further includes a first CSI group, the priority of which is higher than the priority of each of the N CSI groups; wherein, the first CSI group includes a first CSI subgroup and a second CSI subgroup, the first CSI subgroup and the second CSI subgroup being respectively for the first subband group and the second subband group.

[0469] As an example, the first CSI subgroup and the second CSI subgroup have the same priority.

[0470] As one example, the first CSI subgroup and the second CSI subgroup have different priorities.

[0471] As an example, the first CSI subgroup has a higher priority than the second CSI subgroup.

[0472] As an example, the first rank indication belongs to one of the first CSI subgroup and the second CSI subgroup.

[0473] As an example, the first rank indication does not belong to the first CSI group and the N CSI groups.

[0474] As an example, the first rank indication has a higher priority than each CSI subgroup in the first CSI subgroup and the second CSI subgroup.

[0475] As an example, the priority of the first rank indicator is the same as the priority of the first CSI group.

[0476] As an example, the priority of the first rank indicator is the same as the priority of one of the first CSI subgroup and the second CSI subgroup.

[0477] As one embodiment, the first CSI subgroup includes at least one of broadband CQI and broadband PMI for the first subband group, and the second CSI subgroup includes at least one of broadband CQI and broadband PMI for the second subband group.

[0478] As one embodiment, the first CSI subgroup includes at least one of the following: a wideband CQI, a PMI wideband information field, and a codebook index for the first subband group; the second CSI subgroup includes at least one of the following: a wideband CQI, a PMI wideband information field, and a codebook index for the second subband group.

[0479] As one embodiment, the first CSI subgroup includes at least one PMI field for the first subband group, and the second CSI subgroup includes at least one PMI field for the second subband group.

[0480] As one embodiment, the first CSI subgroup includes broadband CSI for the first subband group, and the second CSI subgroup includes broadband CSI for the second subband group.

[0481] As an example, each of the N CSI groups corresponds to an index, the first CSI subgroup corresponds to an index, and the second CSI subgroup corresponds to an index. The index corresponding to the first CSI subgroup is less than the index corresponding to each of the N CSI groups for the first subband group, and the index corresponding to the second CSI subgroup is less than the index corresponding to each of the N CSI groups for the second subband group.

[0482] As an example, the first CSI subgroup is Group 0CSI for the first subband group, and the second CSI subgroup is Group 0CSI for the second subband group.

[0483] Example 15

[0484] Example 15 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of this application; as shown in the appendix. Figure 15 As shown. In the appendix Figure 15 In the first node, the processing device 1500 includes a first receiver 1501 and a first transmitter 1502.

[0485] As one example, the first node is a user equipment.

[0486] As an example, the first node is a relay node.

[0487] As one example, the first node is a terminal.

[0488] As one example, the terminal is a user equipment.

[0489] As an example, the first receiver 1501 includes at least one of the following in embodiment 4: antenna 452, receiver 454, receiver processor 456, multi-antenna receiver processor 458, controller / processor 459, memory 460, and data source 467.

[0490] As one embodiment, the first transmitter 1502 includes at least one of the following in embodiment 4: antenna 452, transmitter 454, transmission processor 468, multi-antenna transmission processor 457, controller / processor 459, memory 460, and data source 467.

[0491] The first receiver 1501 receives the first reported configuration;

[0492] The first transmitter 1502 sends the first report;

[0493] In Embodiment 15, the first reporting configuration indicates a first subband group and a second subband group, which are respectively on two carriers. The first subband group includes one or more subbands, and the second subband group includes one or more subbands. The first reporting includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1. At least one CSI group from the N CSI groups is for the first subband group, and at least one CSI group from the N CSI groups is for the second subband group. All N CSI groups are conditional on the first rank indicator. The priority of any CSI group from the N CSI groups depends on the carrier to which that CSI group is targeted.

[0494] As an example, in the N CSI groups, the priority of each CSI group for the first carrier is higher than the priority of each CSI group for the second carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0495] As an example, among the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0496] As an example, in the N CSI groups, at least two CSI groups have the same priority, and at least two CSI groups have different priorities.

[0497] As an example, the priorities of the N CSI groups are different from each other.

[0498] As an example, each of the N CSI groups corresponds to an index, and some or all of the N CSI groups correspond to different indices. The priority of any CSI group in the N CSI groups also depends on the index corresponding to that CSI group.

[0499] As an example, N is 4, and the N CSI groups are respectively for all even subbands in the first subband group, all odd subbands in the first subband group, all even subbands in the second subband group, and all odd subbands in the second subband group; the priority of any CSI group in the N CSI groups also depends on whether any CSI group is for an even subband or an odd subband.

[0500] As an example, the first report further includes a first CSI group, the priority of which is higher than the priority of each of the N CSI groups; wherein the first CSI group is for each of the first subband group and the second subband group.

[0501] As an example, the first report further includes a first CSI group, the priority of the first CSI group being higher than the priority of each of the N CSI groups; wherein, the first CSI group includes a first CSI subgroup and a second CSI subgroup, the first CSI subgroup and the second CSI subgroup being respectively for the first subband group and the second subband group.

[0502] Example 16

[0503] Example 16 illustrates a structural block diagram of a processing apparatus for a second node according to an embodiment of this application; as shown in the appendix. Figure 16 As shown. In the appendix Figure 16 In the second node, the processing device 1600 includes a second transmitter 1601 and a second receiver 1602.

[0504] In one embodiment, the second node is a base station device.

[0505] As one embodiment, the second node is a network device, which includes at least one of a core network device and an access network device.

[0506] As one example, the second node is a device that provides wireless communication services and can communicate with terminal devices, and is usually located on the network side.

[0507] In one embodiment, the second node is a user equipment.

[0508] As one embodiment, the second node is a relay node device.

[0509] As one embodiment, the second transmitter 1601 includes at least one of the following in embodiment 4: antenna 420, transmitter 418, transmission processor 416, multi-antenna transmission processor 471, controller / processor 475, and memory 476.

[0510] As one embodiment, the second receiver 1602 includes at least one of the following in embodiment 4: antenna 420, receiver 418, receiver processor 470, multi-antenna receiver processor 472, controller / processor 475, and memory 476.

[0511] The second transmitter, 1601, sends the first reported configuration;

[0512] The second receiver 1602 receives the first report;

[0513] In Embodiment 16, the first reporting configuration indicates a first subband group and a second subband group, which are respectively on two carriers. The first subband group includes one or more subbands, and the second subband group includes one or more subbands. The first reporting includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1. At least one CSI group from the N CSI groups is for the first subband group, and at least one CSI group from the N CSI groups is for the second subband group. All N CSI groups are conditional on the first rank indicator. The priority of any CSI group from the N CSI groups depends on the carrier to which that CSI group is targeted.

[0514] As an example, in the N CSI groups, the priority of each CSI group for the first carrier is higher than the priority of each CSI group for the second carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0515] As an example, among the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

[0516] As an example, in the N CSI groups, at least two CSI groups have the same priority, and at least two CSI groups have different priorities.

[0517] As an example, the priorities of the N CSI groups are different from each other.

[0518] As an example, each of the N CSI groups corresponds to an index, and some or all of the N CSI groups correspond to different indices. The priority of any CSI group in the N CSI groups also depends on the index corresponding to that CSI group.

[0519] As an example, N is 4, and the N CSI groups are respectively for all even subbands in the first subband group, all odd subbands in the first subband group, all even subbands in the second subband group, and all odd subbands in the second subband group; the priority of any CSI group in the N CSI groups also depends on whether any CSI group is for an even subband or an odd subband.

[0520] As an example, the first report further includes a first CSI group, the priority of which is higher than the priority of each of the N CSI groups; wherein the first CSI group is for each of the first subband group and the second subband group.

[0521] As an example, the first report further includes a first CSI group, the priority of the first CSI group being higher than the priority of each of the N CSI groups; wherein, the first CSI group includes a first CSI subgroup and a second CSI subgroup, the first CSI subgroup and the second CSI subgroup being respectively for the first subband group and the second subband group.

[0522] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication equipment, vehicles, RSUs, wireless sensors, internet access cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet access cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base stations or system equipment in this application include, but are not limited to, macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNBs, gNBs, TRPs (Transmitter Receiver Points), GNSS, relay satellites, satellite base stations, airborne base stations, RSUs (Road Side Units), drones, and testing equipment, such as transceivers or signaling testers that simulate some functions of a base station, and other wireless communication equipment.

[0523] Those skilled in the art will understand that the present invention can be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A first node for wireless communication, characterized in that, include: A first receiver receives a first reporting configuration, the first reporting configuration indicating a first subband group and a second subband group, the first subband group and the second subband group being on two carriers respectively, the first subband group including one or more subbands, and the second subband group including one or more subbands; The first transmitter sends the first report; The first report includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1; at least one CSI group from the N CSI groups is for the first subband group, at least one CSI group from the N CSI groups is for the second subband group, and all N CSI groups are conditioned on the first rank indicator; the priority of any CSI group from the N CSI groups depends on the carrier to which any CSI group is targeted.

2. The first node according to claim 1, characterized in that, In the N CSI groups, the priority of each CSI group for the first carrier is higher than the priority of each CSI group for the second carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

3. The first node according to claim 1, characterized in that, In the N CSI groups, there exists a CSI group for the first carrier with a higher priority than a CSI group for the second carrier, and there exists a CSI group for the second carrier with a higher priority than a CSI group for the first carrier; wherein the first carrier is one of the two carriers, and the second carrier is the other carrier among the two carriers besides the first carrier.

4. The first node according to any one of claims 1 to 3, characterized in that, In the N CSI groups, at least two CSI groups have the same priority, and at least two CSI groups have different priorities.

5. The first node according to any one of claims 1 to 3, characterized in that, The priorities of the N CSI groups are different from each other.

6. The first node according to any one of claims 1 to 5, characterized in that, Each of the N CSI groups corresponds to an index. Some or all of the N CSI groups correspond to different indices. The priority of any CSI group in the N CSI groups also depends on the index corresponding to that CSI group.

7. The first node according to any one of claims 1 to 5, characterized in that, The N is 4, and the N CSI groups are respectively for all even subbands in the first subband group, all odd subbands in the first subband group, all even subbands in the second subband group, and all odd subbands in the second subband group; the priority of any CSI group in the N CSI groups also depends on whether any CSI group is for an even subband or an odd subband.

8. A second node for wireless communication, characterized in that, include: The second transmitter sends a first reporting configuration, which indicates a first subband group and a second subband group, the first subband group and the second subband group being on two carriers respectively, the first subband group including one or more subbands, and the second subband group including one or more subbands; The second receiver receives the first report; The first report includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1; at least one CSI group from the N CSI groups is for the first subband group, at least one CSI group from the N CSI groups is for the second subband group, and all N CSI groups are conditioned on the first rank indicator; the priority of any CSI group from the N CSI groups depends on the carrier to which any CSI group is targeted.

9. A method for a first node in wireless communication, characterized in that, include: Receive a first reporting configuration, the first reporting configuration indicating a first subband group and a second subband group, the first subband group and the second subband group are on two carriers respectively, the first subband group includes one or more subbands, and the second subband group includes one or more subbands; Send the first report; The first report includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1; at least one CSI group from the N CSI groups is for the first subband group, at least one CSI group from the N CSI groups is for the second subband group, and all N CSI groups are conditioned on the first rank indicator; the priority of any CSI group from the N CSI groups depends on the carrier to which any CSI group is targeted.

10. A method for a second node in wireless communication, characterized in that, include: Send a first reporting configuration, the first reporting configuration indicating a first subband group and a second subband group, the first subband group and the second subband group are on two carriers respectively, the first subband group includes one or more subbands, and the second subband group includes one or more subbands; Receive the first report; The first report includes a first rank indicator and at least one CSI group from N CSI groups, where N is a positive integer greater than 1; at least one CSI group from the N CSI groups is for the first subband group, at least one CSI group from the N CSI groups is for the second subband group, and all N CSI groups are conditioned on the first rank indicator; the priority of any CSI group from the N CSI groups depends on the carrier to which any CSI group is targeted.

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