Method and apparatus in node used for wireless communication

Abstract

The invention discloses a method and an apparatus in a node used for wireless communication. The first processor receives a first information block, and the first information block indicates a first frequency domain resource set and a second frequency domain resource set; receiving a first CSI reporting configuration; wherein the first CSI reporting configuration is associated with a first BWP; the first BWP comprises a first frequency domain resource pool and a second frequency domain resource pool; the first sub-band is the lowest sub-band in the first frequency domain resource pool, the second sub-band is the highest sub-band in the first frequency domain resource pool, the third sub-band is the lowest sub-band in the second frequency domain resource pool, and the fourth sub-band is the highest sub-band in the second frequency domain resource pool; one or two precoding matrices are indicated for each sub-band of the first reporting frequency band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band. The system performance is improved.

Description

Technical Field

[0001] This application relates to a transmission method and apparatus in a wireless communication system, and particularly to a transmission method and apparatus related to CSI reporting or flexible transmission direction in a wireless communication system. Background Art

[0002] In the existing NR (New Radio) system, spectrum resources are divided into FDD (Frequency Division Duplexing) spectrum and TDD (Time Division Duplexing) spectrum. For the TDD spectrum, both the base station and the UE (User Equipment) operate in a half-duplex mode. This half-duplex mode avoids self-interference and can mitigate the impact of cross-link interference, but it also brings about a decrease in resource utilization and an increase in latency. To address these issues, supporting a flexible duplex mode or variable link direction (uplink or downlink or flexible) on the TDD spectrum or FDD spectrum becomes a possible solution. In the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #88e meeting and the 3GPP R (Release)-18 workshop, support for a more flexible duplex mode or full-duplex mode in NR R-18 has received extensive attention and discussion, especially the subband non-overlapping full-duplex (SBFD) mode at the gNB (NR Node B) side. In this mode, the same symbol is used for uplink in some frequency resources and for downlink in other frequency resources, thus improving resource utilization and reducing latency. The 3GPP RAN #102 plenary session decided to start the SI (Study Item) and WI (Work Item) work for NR Rel-19, and the WI supporting subband non-overlapping full-duplex is included in NR R-19.

[0003] Multiple - antenna technology is a key technology in 3GPP LTE systems and NR systems. By configuring multiple antennas at communication nodes, such as base stations or UEs (User Equipment), additional spatial degrees of freedom are obtained. Multiple antennas form beams pointing in a specific direction through beamforming to improve communication quality. In a wireless communication system that supports multi - antenna transmission, it is a common technique for a UE to generate and feedback CSI (Channel State Information) based on at least one of channel or interference measurements to assist the base station in multi - antenna processing. Summary of the Invention

[0004] The inventors found through research that in a more flexible duplex mode / full - duplex mode / SBFD mode, the frequency - domain resource allocation of reference signals becomes more flexible. Therefore, the frequency - domain configuration of CSI reporting needs to be enhanced.

[0005] In view of the above problems, the present application discloses a solution. It should be noted that in the description of the present application, only the more flexible duplex mode, full - duplex mode, SBFD mode, and multi - antenna application scenarios are taken as examples, and the present application can also be applied to other scenarios. Further, adopting a unified design solution for different scenarios (including but not limited to more flexible duplex mode, full - duplex mode, SBFD mode, half - duplex mode, traditional duplex mode, multi - antenna application scenarios, single - antenna scenarios, etc.) helps to reduce hardware complexity and cost. Without conflict, the embodiments and features in the embodiments of any node in the present application can be applied to any other node. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily.

[0006] As an embodiment, the interpretation of the terms (Terminology) in the present application refers to the definitions in the 3GPP specification protocol TS38 series.

[0007] The present application discloses a method in a first node for wireless communication, characterized by including:

[0008] Receiving a first information block, where the first information block indicates a first frequency - domain resource set and a second frequency - domain resource set, the first frequency - domain resource set includes one or more RBs (Resource Blocks), and the second frequency - domain resource set includes one or more RBs;

[0009] Receiving a first CSI reporting configuration, where the first CSI reporting configuration indicates a first reporting frequency band and a first parameter;

[0010] Among them, the first CSI reporting configuration is associated with a first BWP (Bandwidth Part), and the first BWP overlaps with the first frequency-domain resource set; the first BWP includes a first frequency-domain resource pool and a second frequency-domain resource pool. The first frequency-domain resource pool is composed of RBs in the first BWP that belong to the second frequency-domain resource set and are lower than the first frequency-domain resource set in the frequency domain. The second frequency-domain resource pool is composed of RBs in the first BWP that belong to the second frequency-domain resource set and are higher than the first frequency-domain resource set in the frequency domain; the first frequency-domain resource pool includes multiple sub-bands, the second frequency-domain resource pool includes multiple sub-bands, and a sub-band includes one or more consecutive RBs; the first sub-band is the lowest sub-band in the first frequency-domain resource pool, the second sub-band is the highest sub-band in the first frequency-domain resource pool, the third sub-band is the lowest sub-band in the second frequency-domain resource pool, and the fourth sub-band is the highest sub-band in the second frequency-domain resource pool; for each sub-band in the first reporting frequency band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0011] As an embodiment, the problems to be solved by the present application include: when the first frequency-domain resource set is configured and the first frequency-domain resource set overlaps with the first BWP, how to determine the number of precoding matrices indicated for each sub-band in the first reporting frequency band; in the above method, the number of precoding matrices indicated for each sub-band in the first reporting frequency band depends on the size of the sub-band and the first parameter, which solves this problem.

[0012] As an embodiment, the advantages of the above method include: better precoding matrix feedback, avoiding redundant precoding matrix feedback for sub-bands.

[0013] As an embodiment, the advantages of the above method include: simple implementation and small changes to the standard.

[0014] As an embodiment, the advantages of the above method include: better support for CSI reporting in more flexible duplex modes / full-duplex modes / SBFD modes, adapting to different scenarios and terminals.

[0015] According to one aspect of the present application, it is characterized in that is the start of the first frequency-domain resource pool, is the size of the first frequency-domain resource pool, is the start of the second frequency-domain resource pool, is the size of the second frequency-domain resource pool; the the The and the are non - negative integers respectively, and the the the and the depend on at least one of the first BWP, the first set of frequency - domain resources, or the second set of frequency - domain resources.

[0016] As an embodiment, the advantages of the above - mentioned method include: simplifying the division of frequency - domain resources.

[0017] As an embodiment, the advantages of the above - mentioned method include: having good backward compatibility.

[0018] According to one aspect of the present application, it is characterized in that the first given sub - band is any sub - band in the first reporting frequency band that is different from the first sub - band, the second sub - band, the third sub - band, and the fourth sub - band. The first given sub - band includes consecutive RBs, and the is a positive integer. When the value of the first parameter is 2, for the first given sub - band, two precoding matrices are indicated. The first precoding matrix among the two precoding matrices indicated for the first given sub - band corresponds to the first RBs of the first given sub - band, and the second precoding matrix among the two precoding matrices indicated for the first given sub - band corresponds to the last RBs of the first given sub - band.

[0019] As an embodiment, the advantages of the above - mentioned method include: reducing the implementation complexity and having good backward compatibility.

[0020] According to one aspect of the present application, it is characterized in that the depends on the first CSI reporting configuration and the first BWP.

[0021] As an embodiment, the advantages of the above - mentioned method include: having good backward compatibility.

[0022] According to one aspect of the present application, it is characterized in that the size of the first sub - band depends on the first frequency - domain resource pool, and the size of the second sub - band depends on the first frequency - domain resource pool; the size of the third sub - band depends on the second frequency - domain resource pool, and the size of the fourth sub - band depends on the second frequency - domain resource pool.

[0023] As an embodiment, the advantages of the above - mentioned method include: better sub - band allocation.

[0024] As an embodiment, the advantages of the above - mentioned method include: making small changes to the standard.

[0025] According to one aspect of the present application, it is characterized in that when the value of the first parameter is 2, when greater than or equal to , for the sub-bands in the first reporting band that are the first sub-band, one precoding matrix is indicated; when less than , for the sub-bands in the first reporting band that are the first sub-band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first RB of the first sub-band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last RB of the first sub-band; when greater than or equal to , for the sub-bands in the first reporting band that are the third sub-band, one precoding matrix is indicated; when less than , for the sub-bands in the first reporting band that are the third sub-band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first RB of the third sub-band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last RB of the third sub-band; mod represents the modulo operation.

[0026] As an embodiment, the advantages of the above method include: improving the performance of CSI reporting, and thus improving the overall performance of the system.

[0027] As an embodiment, the advantages of the above method include: simple implementation and small changes to the standard.

[0028] According to one aspect of the present application, it is characterized in that when the value of the first parameter is 2, when less than or equal to , for the sub-bands in the first reporting band that are the second sub-band, one precoding matrix is indicated; when greater than , for the sub-bands in the first reporting band that are the second sub-band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first RB of the second sub-band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last RB of the second sub-band; when less than or equal to When, for a sub - band that is the fourth sub - band in the first reporting frequency band, one precoding matrix is indicated; when is greater than When, for a sub - band that is the fourth sub - band in the first reporting frequency band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first RB of the fourth sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last RB of the fourth sub - band; mod represents modulo operation.

[0029] As an embodiment, the advantages of the above - mentioned method include: improving the performance of CSI reporting, and thus improving the overall performance of the system.

[0030] As an embodiment, the advantages of the above - mentioned method include: simple implementation and small changes to the standard.

[0031] According to one aspect of the present application, it is characterized in that when the value of the first parameter is 1, for each sub - band in the first reporting frequency band, one precoding matrix is indicated.

[0032] As an embodiment, the advantages of the above - mentioned method include: having good backward compatibility.

[0033] According to one aspect of the present application, it is characterized in that it includes:

[0034] Receiving a second information block;

[0035] Wherein, the second information block indicates a reference time - domain resource set, the reference time - domain resource set includes one or more symbols configured as DL by a higher - layer parameter, and in at least one symbol of the reference time - domain resource set configured as DL by the higher - layer parameter, at least one RB or at least one sub - carrier belonging to the first frequency - domain resource set is used for uplink transmission.

[0036] As an embodiment, the advantages of the above - mentioned method include: improving uplink performance, improving resource utilization rate, and reducing latency.

[0037] According to one aspect of the present application, it is characterized in that a terminal, characterized in that the terminal includes:

[0038] One or more processors and a memory;

[0039] The memory is coupled to the one or more processors, and the memory is used to store computer program code, where the computer program code includes computer instructions, and the one or more processors call the computer instructions to cause the terminal to execute the method in the first node.

[0040] This application discloses a method in a second node for wireless communication, which is characterized by including:

[0041] Sending a first information block, where the first information block indicates a first frequency domain resource set and a second frequency domain resource set, the first frequency domain resource set includes one or more RBs, and the second frequency domain resource set includes one or more RBs;

[0042] Sending a first CSI reporting configuration, where the first CSI reporting configuration indicates a first reporting frequency band and a first parameter;

[0043] Wherein, the first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first frequency domain resource set; the first BWP includes a first frequency domain resource pool and a second frequency domain resource pool, the first frequency domain resource pool is composed of RBs in the first BWP that belong to the second frequency domain resource set and are lower than the first frequency domain resource set in the frequency domain, and the second frequency domain resource pool is composed of RBs in the first BWP that belong to the second frequency domain resource set and are higher than the first frequency domain resource set in the frequency domain; the first frequency domain resource pool includes multiple sub-bands, the second frequency domain resource pool includes multiple sub-bands, and the sub-band includes one or more consecutive RBs; the first sub-band is the lowest sub-band in the first frequency domain resource pool, the second sub-band is the highest sub-band in the first frequency domain resource pool, the third sub-band is the lowest sub-band in the second frequency domain resource pool, and the fourth sub-band is the highest sub-band in the second frequency domain resource pool; for each sub-band in the first reporting frequency band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band, one or two precoding matrices are indicated, and the number of the indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0044] According to one aspect of this application, it is characterized in that is the start of the first frequency domain resource pool, is the size of the first frequency domain resource pool, is the start of the second frequency domain resource pool, is the size of the second frequency domain resource pool; the the the and the are non-negative integers respectively, the the the and the depends on at least one of the first BWP, the first set of frequency-domain resources, or the second set of frequency-domain resources.

[0045] According to one aspect of the present application, it is characterized in that the first given sub-band is any sub-band in the first reporting frequency band that is different from the first sub-band, the second sub-band, the third sub-band, and the fourth sub-band. The first given sub-band includes consecutive RBs, and the is a positive integer; when the value of the first parameter is 2, for the first given sub-band, two precoding matrices are indicated. The first precoding matrix among the two precoding matrices indicated for the first given sub-band corresponds to the first RBs of the first given sub-band, and the second precoding matrix among the two precoding matrices indicated for the first given sub-band corresponds to the last RBs of the first given sub-band.

[0046] According to one aspect of the present application, it is characterized in that the depends on the first CSI reporting configuration and the first BWP.

[0047] According to one aspect of the present application, it is characterized in that the size of the first sub-band depends on the first frequency-domain resource pool, and the size of the second sub-band depends on the first frequency-domain resource pool; the size of the third sub-band depends on the second frequency-domain resource pool, and the size of the fourth sub-band depends on the second frequency-domain resource pool.

[0048] According to one aspect of the present application, it is characterized in that when the value of the first parameter is 2, when is greater than or equal to , for the sub-band in the first reporting frequency band that is the first sub-band, one precoding matrix is indicated; when is less than , for the sub-band in the first reporting frequency band that is the first sub-band, two precoding matrices are indicated. The first precoding matrix among the two precoding matrices indicated corresponds to the first RBs of the first sub-band, and the second precoding matrix among the two precoding matrices indicated corresponds to the last RBs of the first sub-band; when is greater than or equal to , for the sub-band in the first reporting frequency band that is the third sub-band, one precoding matrix is indicated; when is less than When, for the sub - band that is the third sub - band in the first reporting frequency band, two precoding matrices are indicated, the first precoding matrix among the two indicated precoding matrices corresponds to the first several RBs of the third sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several RBs of the third sub - band; mod represents the modulo operation.

[0049] According to one aspect of the present application, it is characterized in that when the value of the first parameter is 2, when less than or equal to When, for the sub - band that is the second sub - band in the first reporting frequency band, one precoding matrix is indicated; when greater than When, for the sub - band that is the second sub - band in the first reporting frequency band, two precoding matrices are indicated, the first precoding matrix among the two indicated precoding matrices corresponds to the first several RBs of the second sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several RBs of the second sub - band; when less than or equal to When, for the sub - band that is the fourth sub - band in the first reporting frequency band, one precoding matrix is indicated; when greater than When, for the sub - band that is the fourth sub - band in the first reporting frequency band, two precoding matrices are indicated, the first precoding matrix among the two indicated precoding matrices corresponds to the first several RBs of the fourth sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several RBs of the fourth sub - band; mod represents the modulo operation.

[0050] According to one aspect of the present application, it is characterized in that when the value of the first parameter is 1, for each sub - band in the first reporting frequency band, one precoding matrix is indicated.

[0051] According to one aspect of the present application, it includes:

[0052] Send the second information block;

[0053] Wherein, the second information block indicates a set of reference time-domain resources, the set of reference time-domain resources includes one or more symbols configured as DL by a higher layer parameter, and in at least one symbol of the set of reference time-domain resources configured as DL by the higher layer parameter, at least one RB or at least one subcarrier belonging to the first set of frequency-domain resources is used for uplink transmission.

[0054] According to one aspect of the present application, there is provided a base station, characterized in that the base station includes:

[0055] One or more processors and a memory;

[0056] The memory is coupled to the one or more processors, and the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to cause the base station to execute the method in the second node.

[0057] The present application discloses a first node used for wireless communication, characterized by including:

[0058] A first processor, which receives a first information block, the first information block indicates a first set of frequency-domain resources and a second set of frequency-domain resources, the first set of frequency-domain resources includes one or more RBs, and the second set of frequency-domain resources includes one or more RBs;

[0059] The first processor, which receives a first CSI reporting configuration, the first CSI reporting configuration indicates a first reporting band and a first parameter;

[0060] Wherein, the first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first frequency-domain resource set; the first BWP includes a first frequency-domain resource pool and a second frequency-domain resource pool. The first frequency-domain resource pool consists of RBs in the first BWP that belong to the second frequency-domain resource set and are lower than the first frequency-domain resource set in the frequency domain. The second frequency-domain resource pool consists of RBs in the first BWP that belong to the second frequency-domain resource set and are higher than the first frequency-domain resource set in the frequency domain. The first frequency-domain resource pool includes multiple sub-bands, the second frequency-domain resource pool includes multiple sub-bands, and each sub-band includes one or more consecutive RBs. The first sub-band is the lowest sub-band in the first frequency-domain resource pool, the second sub-band is the highest sub-band in the first frequency-domain resource pool, the third sub-band is the lowest sub-band in the second frequency-domain resource pool, and the fourth sub-band is the highest sub-band in the second frequency-domain resource pool. For each sub-band in the first reporting frequency band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band, one or two precoding matrices are indicated, and the number of the indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0061] This application discloses a second node used for wireless communication, which is characterized by including:

[0062] A second processor, which sends a first information block, and the first information block indicates a first frequency-domain resource set and a second frequency-domain resource set. The first frequency-domain resource set includes one or more RBs, and the second frequency-domain resource set includes one or more RBs;

[0063] The second processor sends a first CSI reporting configuration, and the first CSI reporting configuration indicates a first reporting frequency band and a first parameter;

[0064] Among them, the first CSI reporting configuration is associated with the first BWP, and the first BWP overlaps with the first frequency domain resource set; the first BWP includes a first frequency domain resource pool and a second frequency domain resource pool. The first frequency domain resource pool is composed of RBs in the first BWP that belong to the second frequency domain resource set and are lower than the first frequency domain resource set in the frequency domain. The second frequency domain resource pool is composed of RBs in the first BWP that belong to the second frequency domain resource set and are higher than the first frequency domain resource set in the frequency domain; the first frequency domain resource pool includes multiple sub-bands, the second frequency domain resource pool includes multiple sub-bands, and each sub-band includes one or more consecutive RBs; the first sub-band is the lowest sub-band in the first frequency domain resource pool, the second sub-band is the highest sub-band in the first frequency domain resource pool, the third sub-band is the lowest sub-band in the second frequency domain resource pool, and the fourth sub-band is the highest sub-band in the second frequency domain resource pool; for each sub-band in the first reporting frequency band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0065] As an embodiment, compared with the traditional solution, the present application has the following advantages:

[0066] Better precoding matrix feedback, improving the performance of CSI reporting;

[0067] Reducing the implementation complexity and having little impact on the standard;

[0068] Having good backward compatibility;

[0069] Improving the resource utilization rate and reducing the latency. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:

[0071] Figure 1 Shows a flowchart of a first information block and a first CSI reporting configuration according to an embodiment of the present application;

[0072] Figure 2 Shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0073] Figure 3 Shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0074] Figure 4Shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0075] Figure 5 Shows a flowchart of a transmission according to an embodiment of the present application;

[0076] Figure 6 Shows a schematic diagram of a first frequency-domain resource pool and a second frequency-domain resource pool according to an embodiment of the present application;

[0077] Figure 7 Shows a schematic diagram of a first given sub-band according to an embodiment of the present application;

[0078] Figure 8 Shows a schematic diagram of sub-bands included in a first frequency-domain resource pool and sub-bands included in a second frequency-domain resource pool according to an embodiment of the present application;

[0079] Figure 9 Shows according to an embodiment of the present application Schematic diagram depending on the first CSI reporting configuration and the first BWP;

[0080] Figure 10 Shows a schematic diagram of the size of a first sub-band, the size of a second sub-band, the size of a third sub-band, and the size of a fourth sub-band according to an embodiment of the present application;

[0081] Figure 11 Shows a schematic diagram of indicating a precoding matrix for a first sub-band according to an embodiment of the present application;

[0082] Figure 12 Shows a schematic diagram of indicating a precoding matrix for a third sub-band according to an embodiment of the present application;

[0083] Figure 13 Shows a schematic diagram of indicating a precoding matrix for a second sub-band according to an embodiment of the present application;

[0084] Figure 14 Shows a schematic diagram of indicating a precoding matrix for a fourth sub-band according to an embodiment of the present application;

[0085] Figure 15 Shows a schematic diagram of the precoding matrix indicated for each sub-band when a first parameter is 1 according to an embodiment of the present application;

[0086] Figure 16 Shows a schematic diagram of a second information block according to an embodiment of the present application;

[0087] Figure 17 Shows a structural block diagram of a processing device in a first node according to an embodiment of the present application;

[0088] Figure 18 Shows a structural block diagram of a processing device in a second node according to an embodiment of the present application. Detailed implementation

[0089] The technical solution of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined arbitrarily with each other. Considering aspects such as flexibility, complexity, overhead, and compatibility, those skilled in the art have the motivation to flexibly combine the embodiments in different drawings on the premise of non-conflict, such as (but not limited to) the embodiments in Figure 1 and the embodiments in Figure 5 - Figure 16 and the embodiments in Figure 5 and the embodiments in Figure 6 - Figure 16 and the embodiments in, etc.

[0090] Example 1

[0091] Embodiment 1 exemplifies a flowchart of a first information block and a first CSI reporting configuration according to an embodiment of the present application, as shown in Figure 1 shown. In 100 shown in Figure 1 , each box represents a step. In particular, the order of the steps in the box does not represent a specific chronological relationship between the steps.

[0092] In Embodiment 1, the first node in the present application receives a first information block in step 101, where the first information block indicates a first frequency-domain resource set and a second frequency-domain resource set, the first frequency-domain resource set includes one or more RBs, and the second frequency-domain resource set includes one or more RBs; in step 102, it receives a first CSI reporting configuration, where the first CSI reporting configuration indicates a first reporting band and a first parameter; wherein, the first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first frequency-domain resource set; the first BWP includes a first frequency-domain resource pool and a second frequency-domain resource pool, the first frequency-domain resource pool is composed of RBs in the first BWP that belong to the second frequency-domain resource set and are lower than the first frequency-domain resource set in the frequency domain, and the second frequency-domain resource pool is composed of RBs in the first BWP that belong to the second frequency-domain resource set and are higher than the first frequency-domain resource set in the frequency domain; the first frequency-domain resource pool includes multiple sub-bands, the second frequency-domain resource pool includes multiple sub-bands, and each sub-band includes one or more consecutive RBs; the first sub-band is the lowest sub-band in the first frequency-domain resource pool, the second sub-band is the highest sub-band in the first frequency-domain resource pool, the third sub-band is the lowest sub-band in the second frequency-domain resource pool, and the fourth sub-band is the highest sub-band in the second frequency-domain resource pool; for each sub-band in the first reporting band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band, one or two precoding matrices are indicated, and the number of the indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0093] As an embodiment, the first information block is carried by higher layer signaling.

[0094] As an embodiment, the first information block is carried by RRC (Radio Resource Control) signaling.

[0095] As an embodiment, the first information block includes all or part of the fields in an RRC IE (Information Element).

[0096] As an embodiment, the first information block includes all or part of the fields in each of multiple RRC IEs.

[0097] As an embodiment, the first information block includes all or part of the fields in the ServingCellConfig IE.

[0098] As an example, the first information block includes all or part of the fields in the ServingCellConfigCommonSIB IE.

[0099] As an example, the first information block includes all or part of the fields in the ServingCellConfigCommon IE.

[0100] As an example, the first information block includes all or part of the fields in the DownlinkConfigCommon IE.

[0101] As an example, the first information block includes all or part of the fields in the DownlinkConfigCommonSIB IE.

[0102] As an example, the first information block includes all or part of the fields in the UplinkConfigCommon IE.

[0103] As an example, the first information block includes all or part of the fields in the UplinkConfigCommonSIB IE.

[0104] As an example, the first information block includes all or part of the fields in the RRC IE whose name includes "BWP-Downlink".

[0105] As an example, the first information block includes all or part of the fields in the BWP-Downlink IE.

[0106] As an example, the first information block includes all or part of the fields in the BWP-DownlinkCommon IE.

[0107] As an example, the first information block includes all or part of the fields in the RRC IE whose name includes "BWP-Uplink".

[0108] As an example, the first information block includes all or part of the fields in the BWP-Uplink IE.

[0109] As an example, the first information block includes all or part of the fields in the BWP-UplinkCommon IE.

[0110] As an example, the first information block is carried by at least one RRC IE.

[0111] As an example, the first information block is carried by the ServingCellConfig IE.

[0112] As an embodiment, the first information block is carried by the ServingCellConfigCommonSIB IE.

[0113] As an embodiment, the first information block is carried by the ServingCellConfigCommon IE.

[0114] As an embodiment, the first information block is carried by the DownlinkConfigCommon IE.

[0115] As an embodiment, the first information block is carried by the DownlinkConfigCommonSIB IE.

[0116] As an embodiment, the first information block is carried by the UplinkConfigCommon IE.

[0117] As an embodiment, the first information block is carried by the UplinkConfigCommonSIB IE.

[0118] As an embodiment, the first information block is carried by the BWP-Downlink IE.

[0119] As an embodiment, the first information block is carried by the BWP-DownlinkCommon IE.

[0120] As an embodiment, the first information block is carried by the BWP-Uplink IE.

[0121] As an embodiment, the first information block is carried by the BWP-UplinkCommon IE.

[0122] As an embodiment, the name of an IE carrying the first information block includes "ServingCellConfig".

[0123] As an embodiment, the name of an IE carrying the first information block includes "DownlinkConfig".

[0124] As an embodiment, the name of an IE carrying the first information block includes "UplinkConfig".

[0125] As an embodiment, the name of an IE carrying the first information block includes "BWP-Downlink".

[0126] As an embodiment, the name of an IE carrying the first information block includes "BWP-Uplink".

[0127] As an example, the name of an IE carrying the first information block includes "BWP".

[0128] As an example, the first information block is carried by MAC CE (Medium Access Control layer Control Element).

[0129] As an example, the first information block is carried by physical layer signaling.

[0130] As an example, the first information block is carried by DCI (Downlink Control Information).

[0131] As an example, the first information block is carried jointly by RRC signaling and MAC CE.

[0132] As an example, the first information block is carried jointly by higher layer signaling and DCI.

[0133] As an example, the first information block is cell-specific.

[0134] As an example, the first frequency domain resource set includes one or more subcarriers.

[0135] As an example, the first frequency domain resource set includes multiple subcarriers.

[0136] As an example, the first frequency domain resource set includes a continuous set of multiple subcarriers.

[0137] As an example, the second frequency domain resource set includes one or more subcarriers.

[0138] As an example, the second frequency domain resource set includes multiple subcarriers.

[0139] As an example, the second frequency domain resource set includes a continuous set of multiple subcarriers.

[0140] As an example, the second frequency domain resource set includes a discontinuous set of multiple subcarriers.

[0141] As an example, the first frequency domain resource set includes one or more RBs.

[0142] As an example, the first frequency domain resource set includes multiple RBs.

[0143] As an example, the first frequency-domain resource set includes a plurality of consecutive RBs.

[0144] As an example, the second frequency-domain resource set includes one or more RBs.

[0145] As an example, the second frequency-domain resource set includes a plurality of RBs.

[0146] As an example, the second frequency-domain resource set includes a plurality of consecutive RBs.

[0147] As an example, the second frequency-domain resource set includes a plurality of non-consecutive RBs.

[0148] As an example, the first frequency-domain resource set includes a plurality of consecutive RBs, and the second frequency-domain resource includes a plurality of consecutive RBs.

[0149] As an example, the first frequency-domain resource set includes a plurality of consecutive RBs, and the second frequency-domain resource includes a plurality of non-consecutive RBs.

[0150] As an example, the RB includes one or more subcarriers.

[0151] As an example, the RB includes a plurality of consecutive subcarriers.

[0152] As an example, the RB includes 12 consecutive subcarriers.

[0153] As an example, the RB includes a CRB (Common Resource Block).

[0154] As an example, the RB includes a PRB (Physical Resource Block).

[0155] As an example, the RB includes a VRB (Virtual Resource Block).

[0156] As an example, the RB refers to a CRB.

[0157] As an example, the RB refers to a PRB.

[0158] As an example, for the specific definitions of CRB, PRB, and VRB, refer to Section 4 of 3GPP TS 38.211.

[0159] As an example, the first frequency-domain resource set and the second frequency-domain resource set are configured in one carrier.

[0160] As an embodiment, the first frequency-domain resource set and the second frequency-domain resource set are indicated in one carrier.

[0161] As a sub-embodiment of the above embodiment, the first frequency-domain resource set is located on one side of the carrier, the first frequency-domain resource set includes a plurality of consecutive RBs, and the second frequency-domain resource set includes a plurality of consecutive RBs.

[0162] As a sub-embodiment of the above embodiment, the first frequency-domain resource set is located in the middle part of the carrier, the first frequency-domain resource set includes a plurality of consecutive RBs, the second frequency-domain resource set includes two non-consecutive parts, and the two parts of the second frequency-domain resource set respectively include a plurality of consecutive RBs.

[0163] As a sub-embodiment of the above embodiment, the one carrier is one of a set of carriers with different subcarrier spacings configured by the higher layer parameter scs-SpecificCarrierList.

[0164] As a sub-embodiment of the above embodiment, the one carrier is configured by an SCS-SpecificCarrier IE.

[0165] As a sub-embodiment of the above embodiment, the subcarrier spacing of the one carrier is indicated by subcarrierSpacing in the SCS-SpecificCarrier IE.

[0166] As a sub-embodiment of the above embodiment, the first frequency-domain resource set, the second frequency-domain resource set, and the one carrier have the same subcarrier spacing.

[0167] As an embodiment, the first information block respectively indicates the first frequency-domain resource set and the second frequency-domain resource set.

[0168] As an embodiment, the first information block explicitly indicates the first frequency-domain resource set and the second frequency-domain resource set.

[0169] As an embodiment, the first information block respectively indicates the positions of the first frequency-domain resource set and the second frequency-domain resource set in one carrier.

[0170] As an embodiment, the first frequency-domain resource set includes a plurality of consecutive RBs, and the first information block indicates the position of the first frequency-domain resource set in a carrier.

[0171] As a sub-embodiment of the above embodiment, the first information block indicates each RB included in the first frequency-domain resource set.

[0172] As a sub-embodiment of the above embodiment, the first information block indicates the index of each RB included in the first frequency-domain resource set.

[0173] As a sub-embodiment of the above embodiment, the first information block indicates the index of the starting RB of the first frequency-domain resource set and the number of consecutive RBs included.

[0174] As an embodiment, the second frequency-domain resource set includes a plurality of consecutive RBs, and the first information block indicates the position of the second frequency-domain resource set in a carrier.

[0175] As a sub-embodiment of the above embodiment, the first information block indicates each RB included in the second frequency-domain resource set.

[0176] As a sub-embodiment of the above embodiment, the first information block indicates the index of each RB included in the second frequency-domain resource set.

[0177] As a sub-embodiment of the above embodiment, the first information block indicates the starting RB index of the second frequency-domain resource set and the number of consecutive RBs included.

[0178] As an embodiment, the second frequency-domain resource set includes two discontinuous parts, and the two parts of the second frequency-domain resource set respectively include a plurality of consecutive RBs. The first information block respectively indicates the positions of the two parts of the second frequency-domain resource set in a carrier.

[0179] As a sub-embodiment of the above embodiment, the first information block respectively indicates each RB included in the two parts of the second frequency-domain resource set.

[0180] As a sub-embodiment of the above embodiment, the first information block respectively indicates the index of each RB included in the two parts of the second frequency-domain resource set.

[0181] As a sub-embodiment of the above embodiment, the first information block respectively indicates the index of the starting RB of the two parts of the second frequency-domain resource set and the number of consecutive RBs included.

[0182] As an example, the first information block indicates the RBs included in the first frequency-domain resource set, and the first information block indicates the RBs included in the second frequency-domain resource set.

[0183] As an example, the first information block indicates each RB included in the first frequency-domain resource set, and the first information block indicates each RB included in the second frequency-domain resource set.

[0184] As an example, the first information block indicates the indexes of the RBs included in the first frequency-domain resource set, and the first information block indicates the indexes of the RBs included in the second frequency-domain resource set.

[0185] As an example, the first information block indicates the index of each RB included in the first frequency-domain resource set, and the first information block indicates the index of each RB included in the second frequency-domain resource set.

[0186] As an example, the first information block indicates the index of the starting RB of the first frequency-domain resource set, and the first information block indicates the index of the starting RB of the second frequency-domain resource set.

[0187] As an example, the first information block indicates the number of RBs included in the first frequency-domain resource set, and the first information block indicates the number of RBs included in the second frequency-domain resource set.

[0188] As an example, the first information block indicates the number of consecutive RBs included in the first frequency-domain resource set, and the first information block indicates the number of consecutive RBs included in the second frequency-domain resource set.

[0189] As an example, the first information block indicates the index of the starting RB of the first frequency-domain resource set and the number of consecutive RBs included therein, and the first information block indicates the index of the starting RB of the second frequency-domain resource set and the number of consecutive RBs included therein.

[0190] As an example, the first information block indicates the position of the RBs included in the first frequency-domain resource set relative to the first reference starting RB.

[0191] As an example, the first information block indicates the position of each RB included in the first frequency-domain resource set relative to the first reference starting RB.

[0192] As an example, the first information block indicates the position of the starting RB of the first frequency-domain resource set relative to the first reference starting RB.

[0193] As an example, the first information block indicates the offset of the starting resource block (RB) of the first set of frequency-domain resources relative to the first reference starting RB.

[0194] As an example, the first information block indicates the position of the RBs included in the second set of frequency-domain resources relative to the first reference starting RB.

[0195] As an example, the first information block indicates the position of each RB included in the second set of frequency-domain resources relative to the first reference starting RB.

[0196] As an example, the first information block indicates the position of the starting RB of the second set of frequency-domain resources relative to the first reference starting RB.

[0197] As an example, the first information block indicates the offset of the starting RB of the second set of frequency-domain resources relative to the first reference starting RB.

[0198] As an example, the first reference starting RB is CRB 0.

[0199] As an example, the first reference starting RB is the lowest RB in a carrier.

[0200] As an example, the first reference starting RB is the lowest usable RB in a carrier.

[0201] As an example, the first reference starting RB is the RB where the lowest usable subcarrier in a carrier is located.

[0202] As an example, there is an offset of offsetToCarrier RBs between the first reference starting RB and CRB 0.

[0203] As an example, there is an offset of offsetToCarrier RBs between the lowest subcarrier of the first reference starting RB and the lowest subcarrier of CRB 0.

[0204] As an example, the first CSI reporting configuration is a CSI reporting configuration.

[0205] As an example, the first CSI reporting configuration is a CSI Reporting setting.

[0206] As an example, the first CSI reporting configuration is a CSI-ReportConfig IE.

[0207] As an example, the first CSI reporting configuration is a CSI Reporting setting configured by a CSI-ReportConfig IE.

[0208] As an example, the first CSI reporting configuration is identified by a CSI-ReportConfigId.

[0209] As an example, the first CSI reporting configuration is carried by RRC (Radio Resource Control) signaling.

[0210] As an example, the first CSI reporting configuration is carried by at least one RRC IE.

[0211] As an example, the first CSI reporting configuration is configured by at least one RRC IE.

[0212] As an example, the first CSI reporting configuration is an RRC IE.

[0213] As an example, the first CSI reporting configuration is carried by a CSI-ReportConfig IE.

[0214] As an example, the first CSI reporting configuration is configured by a CSI-ReportConfig IE.

[0215] As an example, the first CSI reporting configuration is carried by a CSI-MeasConfig IE.

[0216] As an example, the first CSI reporting configuration is configured by a CSI-MeasConfig IE.

[0217] As an example, the first CSI reporting configuration is aperiodic.

[0218] As an example, the first CSI reporting configuration is semi-persistent.

[0219] As an example, the first CSI reporting configuration is periodic.

[0220] As an example, the first reporting band is one or more CSI reporting subbands.

[0221] As an example, the first reporting band is one or more subbands of the reported CSI.

[0222] As an embodiment, the first reporting band is the frequency domain resource of one or more CSI reported thereon.

[0223] As an embodiment, the first reporting band includes one or more subbands.

[0224] As an embodiment, the first reporting band includes only one subband.

[0225] As an embodiment, the first reporting band includes multiple subbands.

[0226] As an embodiment, the first reporting band includes multiple consecutive subbands.

[0227] As an embodiment, the first reporting band includes multiple non-consecutive subbands.

[0228] As an embodiment, any two subbands in the first reporting band are orthogonal to each other in the frequency domain.

[0229] As an embodiment, the first reporting band is the frequency domain resource related to the first CSI report.

[0230] As an embodiment, the first reporting band is the frequency domain resource targeted by the first CSI report.

[0231] As an embodiment, the first CSI report is a report configured by the first CSI report.

[0232] As an embodiment, the first CSI report is a reporting instance configured by the first CSI report.

[0233] As an embodiment, the first CSI report includes CSI (Channel State Information).

[0234] As an embodiment, the first CSI report includes at least one CRI (CSI-RS Resource Indicator).

[0235] As an embodiment, the first CSI report includes at least one SSBRI (SS / PBCH Block Resource Indicator).

[0236] As an example, the first CSI report includes at least one L1-RSRP (Layer 1 reference signal received power).

[0237] As an example, the first CSI report includes at least one L1-SINR (Layer 1 signal-to-noise and interference ratio).

[0238] As an example, the first CSI report includes at least one CQI (Channel quality indicator).

[0239] As an example, the first CSI report includes at least one PMI (Precoding Matrix Indicator).

[0240] As an example, the first CSI report includes at least one RI (Rank Indicator).

[0241] As an example, the first CSI report configuration indicates the first reporting frequency band.

[0242] As an example, the first reporting frequency band is indicated by a higher layer parameter reportFreqConfiguration in the first CSI report configuration.

[0243] As an example, the first reporting frequency band is indicated by a higher layer parameter csi-ReportingBand in the first CSI report configuration.

[0244] As an example, the first reporting frequency band is configured by a higher layer parameter reportFreqConfiguration in the first CSI report configuration.

[0245] As an example, the first reporting frequency band is configured by a higher layer parameter csi-ReportingBand in the first CSI report configuration.

[0246] As an example, the first parameter is an integer.

[0247] As an example, the first parameter is a positive integer.

[0248] As an example, the value of the first parameter is one of 1 or 2.

[0249] As an example, the value of the first parameter is 1.

[0250] As an example, the value of the first parameter is 2.

[0251] As an example, the first parameter is a higher layer parameter whose name includes numberOfPMI-SubbandsPerCQI-Subband.

[0252] As an example, the first parameter is numberOfPMI-SubbandsPerCQI-Subband.

[0253] As an example, the first parameter is indicated by a higher layer parameter whose name includes numberOfPMI-SubbandsPerCQI-Subband.

[0254] As an example, the first parameter is configured by a higher layer parameter whose name includes numberOfPMI-SubbandsPerCQI-Subband.

[0255] As an example, the first CSI reporting configuration indicates the first parameter.

[0256] As an example, the first parameter is indicated by a higher layer parameter whose name includes numberOfPMI-SubbandsPerCQI-Subband in the first CSI reporting configuration.

[0257] As an example, the first parameter is configured by a higher layer parameter whose name includes numberOfPMI-SubbandsPerCQI-Subband in the first CSI reporting configuration.

[0258] As an example, the first BWP is a downlink (DL) BWP.

[0259] As an example, the first BWP is identified by a BWP-Id.

[0260] As an example, the first BWP includes one or more RBs.

[0261] As an example, the first BWP includes multiple RBs.

[0262] As an example, the first BWP includes multiple consecutive RBs.

[0263] As an example, the first BWP includes one or more subcarriers.

[0264] As an example, the first BWP includes a plurality of subcarriers.

[0265] As an example, the first BWP includes a plurality of consecutive subcarriers.

[0266] As an example, the meaning of "the first CSI reporting configuration is associated with the first BWP" includes: the first CSI reporting configuration indicates the RS (Reference Signal) resources used to obtain the channel measurements for calculating the first CSI report, and the RS resources are located in the first BWP.

[0267] As an example, the meaning of "the first CSI reporting configuration is associated with the first BWP" includes: resourcesForChannelMeasurement in the first CSI reporting configuration indicates the RS resources used to obtain the channel measurements for calculating the first CSI report, and the RS resources are located in the first BWP.

[0268] As an example, the RS resources include CSI-RS (Channel State Information-Reference Signal) resources.

[0269] As an example, the RS resource is a CSI-RS resource.

[0270] As an example, the RS resource is a NZP (non-zero-power) CSI-RS resource.

[0271] As an example, the RS resource is identified by a NZP-CSI-RS-ResourceId.

[0272] As an example, the RS resources include a set of CSI-RS resources.

[0273] As an example, the RS resource is a set of CSI-RS resources.

[0274] As an example, the RS resource is a set of NZP CSI-RS resources.

[0275] As an example, the RS resource is identified by a NZP-CSI-RS-ResourceSetId.

[0276] As an example, the RS resources include SS / PBCH (Synchronisation Signal / PhysicalBroadcast Channel) block resources.

[0277] As an example, the RS resource is an SS / PBCH block resource.

[0278] As an example, the RS resource is identified by an SSB-Index.

[0279] As an example, "the first CSI reporting configuration is associated with the first BWP" means that the first CSI reporting configuration indicates a CSI resource configuration, and the bwp-Id in the CSI resource configuration indicates the first BWP.

[0280] As an example, "the first CSI reporting configuration is associated with the first BWP" means that resourcesForChannelMeasurement in the first CSI reporting configuration indicates a CSI resource configuration, and the bwp-Id in the CSI resource configuration indicates the first BWP.

[0281] As an example, the CSI resource configuration is a CSI resource configuration for channel measurement.

[0282] As an example, the CSI resource configuration is a CSI Resource setting.

[0283] As an example, the CSI resource configuration is a CSI-ResourceConfig IE.

[0284] As an example, the CSI resource configuration is a CSI Resource setting configured by a CSI-ResourceConfig IE.

[0285] As an example, the CSI resource configuration is identified by a CSI-ResourceConfigId.

[0286] As an example, the CSI resource configuration is carried by RRC signaling.

[0287] As an example, the CSI resource configuration is carried by at least one RRC IE.

[0288] As an example, the CSI resource configuration is configured by at least one RRC IE.

[0289] As an example, the CSI resource configuration is an RRC IE.

[0290] As an example, the CSI resource configuration is carried by a CSI-ResourceConfig IE.

[0291] As an example, the CSI resource configuration is configured by a CSI-ResourceConfig IE.

[0292] As an example, the CSI resource configuration is carried by a CSI-MeasConfig IE.

[0293] As an example, the CSI resource configuration is configured by a CSI-MeasConfig IE.

[0294] As an example, the meaning of "the first CSI reporting configuration is associated with the first BWP" includes: the first CSI reporting configuration indicates the first reporting frequency band, and the first reporting frequency band is located in the first BWP.

[0295] As an example, the meaning of "the first CSI reporting configuration is associated with the first BWP" includes: the first CSI reporting configuration indicates the first reporting frequency band, and the first reporting frequency band belongs to the first BWP.

[0296] As an example, the meaning of "the first CSI reporting configuration is associated with the first BWP" includes: the first CSI reporting configuration indicates the first reporting frequency band, the first BWP includes multiple sub-bands, and the first reporting frequency band is a subset of the multiple sub-bands included in the first BWP.

[0297] As an example, at least some of the frequency domain resources in the first frequency domain resource set overlap with the first BWP.

[0298] As an example, only some of the frequency domain resources in the first frequency domain resource set overlap with the first BWP.

[0299] As an example, all of the frequency domain resources in the first frequency domain resource set overlap with the first BWP.

[0300] As an example, the first frequency domain resource set belongs to the first BWP.

[0301] As an example, the first frequency domain resource set belongs to the first BWP, and the first frequency domain resource set is in the middle part of the first BWP.

[0302] As an example, at least one RB in the first frequency domain resource set overlaps with the first BWP.

[0303] As an example, multiple RBs in the first frequency-domain resource set overlap with the first BWP.

[0304] As an example, all RBs in the first frequency-domain resource set overlap with the first BWP.

[0305] As an example, at least one subcarrier in the first frequency-domain resource set overlaps with the first BWP.

[0306] As an example, multiple subcarriers in the first frequency-domain resource set overlap with the first BWP.

[0307] As an example, all subcarriers in the first frequency-domain resource set overlap with the first BWP.

[0308] As an example, the first frequency-domain resource pool includes one or more RBs.

[0309] As an example, the first frequency-domain resource pool includes multiple RBs.

[0310] As an example, the first frequency-domain resource pool includes multiple consecutive RBs.

[0311] As an example, the second frequency-domain resource pool includes one or more RBs.

[0312] As an example, the second frequency-domain resource pool includes multiple RBs.

[0313] As an example, the second frequency-domain resource pool includes multiple consecutive RBs.

[0314] As an example, the first frequency-domain resource pool includes one or more subcarriers.

[0315] As an example, the first frequency-domain resource pool includes multiple subcarriers.

[0316] As an example, the first frequency-domain resource pool includes multiple consecutive subcarriers.

[0317] As an example, the second frequency-domain resource pool includes one or more subcarriers.

[0318] As an example, the second frequency-domain resource pool includes multiple subcarriers.

[0319] As an example, the second frequency-domain resource pool includes multiple consecutive subcarriers.

[0320] As an example, the first frequency-domain resource pool includes the part in the first BWP that belongs to the second frequency-domain resource set and is lower than the first frequency-domain resource set in the frequency domain, and the second frequency-domain resource pool includes the part in the first BWP that belongs to the second frequency-domain resource set and is higher than the first frequency-domain resource set in the frequency domain.

[0321] As an example, the first frequency-domain resource pool includes at least some RBs in the first BWP that belong to the second frequency-domain resource set and are lower than the first frequency-domain resource set in the frequency domain, and the second frequency-domain resource pool includes at least some RBs in the first BWP that belong to the second frequency-domain resource set and are higher than the first frequency-domain resource set in the frequency domain.

[0322] As an example, the first frequency-domain resource pool includes all the RBs in the first BWP that belong to the second frequency-domain resource set and are lower than the first frequency-domain resource set in the frequency domain, and the second frequency-domain resource pool includes all the RBs in the first BWP that belong to the second frequency-domain resource set and are higher than the first frequency-domain resource set in the frequency domain.

[0323] As an example, the first frequency-domain resource pool consists of all the RBs in the first BWP that belong to the second frequency-domain resource set and are lower than the first frequency-domain resource set in the frequency domain, and the second frequency-domain resource pool consists of all the RBs in the first BWP that belong to the second frequency-domain resource set and are higher than the first frequency-domain resource set in the frequency domain.

[0324] As an example, the first frequency-domain resource pool consists of all the subcarriers in the first BWP that belong to the second frequency-domain resource set and are lower than the first frequency-domain resource set in the frequency domain, and the second frequency-domain resource pool consists of all the subcarriers in the first BWP that belong to the second frequency-domain resource set and are higher than the first frequency-domain resource set in the frequency domain.

[0325] As an example, any RB in the first frequency-domain resource pool is lower than the first frequency-domain resource set in the frequency domain.

[0326] As an example, any RB in the first frequency-domain resource pool is lower than the lowest-frequency RB in the first frequency-domain resource set in the frequency domain.

[0327] As an example, each RB in the first frequency-domain resource pool is lower than the first frequency-domain resource set in the frequency domain.

[0328] As an example, each RB in the first frequency-domain resource pool is lower than the lowest-frequency RB in the first frequency-domain resource set in the frequency domain.

[0329] As an embodiment, any sub - carrier in the first frequency - domain resource pool is lower than the first frequency - domain resource set in the frequency domain.

[0330] As an embodiment, any sub - carrier in the first frequency - domain resource pool is lower than the lowest - frequency sub - carrier in the first frequency - domain resource set in the frequency domain.

[0331] As an embodiment, each sub - carrier in the first frequency - domain resource pool is lower than the first frequency - domain resource set in the frequency domain.

[0332] As an embodiment, each sub - carrier in the first frequency - domain resource pool is lower than the lowest - frequency sub - carrier in the first frequency - domain resource set in the frequency domain.

[0333] As an embodiment, any resource block (RB) in the second frequency - domain resource pool is higher than the first frequency - domain resource set in the frequency domain.

[0334] As an embodiment, any resource block (RB) in the second frequency - domain resource pool is higher than the highest - frequency RB in the first frequency - domain resource set in the frequency domain.

[0335] As an embodiment, each resource block (RB) in the second frequency - domain resource pool is higher than the first frequency - domain resource set in the frequency domain.

[0336] As an embodiment, each resource block (RB) in the second frequency - domain resource pool is higher than the highest - frequency RB in the first frequency - domain resource set in the frequency domain.

[0337] As an embodiment, any sub - carrier in the second frequency - domain resource pool is higher than the first frequency - domain resource set in the frequency domain.

[0338] As an embodiment, any sub - carrier in the second frequency - domain resource pool is higher than the highest - frequency sub - carrier in the first frequency - domain resource set in the frequency domain.

[0339] As an embodiment, each sub - carrier in the second frequency - domain resource pool is higher than the first frequency - domain resource set in the frequency domain.

[0340] As an embodiment, each sub - carrier in the second frequency - domain resource pool is higher than the highest - frequency sub - carrier in the first frequency - domain resource set in the frequency domain.

[0341] As an embodiment, the first frequency - domain resource pool includes a plurality of consecutive sub - bands.

[0342] As an embodiment, any two of the plurality of consecutive sub - bands included in the first frequency - domain resource pool are orthogonal to each other in the frequency domain.

[0343] As an embodiment, the second frequency-domain resource pool includes a plurality of consecutive subbands.

[0344] As an embodiment, any two of the plurality of consecutive subbands included in the second frequency-domain resource pool are orthogonal to each other in the frequency domain.

[0345] As an embodiment, one subband includes one or more consecutive RBs.

[0346] As an embodiment, one subband includes a plurality of consecutive RBs.

[0347] As an embodiment, except for the subbands at the edge of the first frequency-domain resource pool and the subbands at the edge of the second frequency-domain resource pool, the number of RBs included in other subbands is the same.

[0348] As an embodiment, except for the subbands at the edge of the first frequency-domain resource pool and the subbands at the edge of the second frequency-domain resource pool, the number of RBs included in other subbands increases as the bandwidth of the first BWP increases.

[0349] As an embodiment, the first subband is the lowest subband in the first frequency-domain resource pool, and the second subband is the highest subband in the first frequency-domain resource pool.

[0350] As an embodiment, the essence of the above method includes: the first subband and the second subband are two subbands located at the edge of the first frequency-domain resource pool.

[0351] As an embodiment, the third subband is the lowest subband in the second frequency-domain resource pool, and the fourth subband is the highest subband in the second frequency-domain resource pool.

[0352] As an embodiment, the essence of the above method includes: the third subband and the fourth subband are two subbands located at the edge of the second frequency-domain resource pool.

[0353] As an embodiment, "the lowest" means: the first one.

[0354] As an embodiment, "the lowest" means: the lowest in the frequency domain.

[0355] As an embodiment, "the lowest" means: the lowest frequency-domain position.

[0356] As an embodiment, "the lowest" means: the lowest frequency.

[0357] As an embodiment, "the highest" means: the last one.

[0358] As an embodiment, "the highest" means: the highest in the frequency domain.

[0359] As an example, "highest" means: the highest frequency-domain position.

[0360] As an example, "highest" means: the highest frequency.

[0361] As an example, the size of a sub-band means: the number of RBs included in the sub-band.

[0362] As an example, the size of a sub-band means: the number of PRBs included in the sub-band.

[0363] As an example, the first reporting frequency band includes at least one sub-band, and one of the at least one sub-bands is the first sub-band. For this sub-band, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0364] As an example, the first reporting frequency band includes at least one sub-band, and one of the at least one sub-bands is the second sub-band. For this sub-band, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0365] As an example, the first reporting frequency band includes at least one sub-band, and one of the at least one sub-bands is the third sub-band. For this sub-band, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0366] As an example, the first reporting frequency band includes at least one sub-band, and one of the at least one sub-bands is the fourth sub-band. For this sub-band, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0367] As an example, the one or two precoding matrices are indicated by PMI.

[0368] As an example, when the value of the first parameter is 1, for each sub-band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band in the first reporting frequency band, only one precoding matrix is indicated.

[0369] As an example, when the value of the first parameter is 2, for each sub-band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band in the first reporting frequency band, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this sub-band.

[0370] Example 2

[0371] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the appendix Figure 2 as follows

[0372] appendix Figure 2Describes the network architecture 200. The network architecture 200 is a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system, or the network architecture 200 is a 5G+ network architecture, or the network architecture 200 is a 6G network architecture, or the network architecture 200 is a network architecture adopted in the future continuous evolution of 3GPP; the network architecture 200 can be referred to as 5GS (5G System) / EPS (Evolved Packet System), or the network architecture 200 can be referred to as 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 be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the network architecture 200 provides packet switching 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 switching 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 towards UE 201. Node 203 can be connected to other nodes 204 via the Xn interface (e.g., backhaul) / X2 interface. Node 203 can 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 (Transmission and Reception Point), or some other appropriate 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 an access point for UE 201 to the core network 210.Examples of the UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, 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 Internet of Things 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 the UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term. The node 203 is connected to the core network 210 through the S1 / NG interface. The core network 210 includes a Mobility Management Entity (MME) / Authentication Management Field (AMF) / Session Management Function (SMF) 211, other MME / AMF / SMFs 214, a Service Gateway (S-GW) / User Plane Function (UPF) 212, and a Packet Date Network Gateway (P-GW) / UPF 213. The MME / AMF / SMF 211 is a control node that processes the signaling between the UE 201 and the core network 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user Internet Protocol (IP) 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. The Internet service 230 includes the operator's corresponding Internet protocol services, which may specifically include the Internet, intranet, IP Multimedia Subsystem (IMS), and packet switching services.

[0373] As an embodiment, the first node in the present application includes the UE 201.

[0374] As an embodiment, the second node in the present application includes the node 203.

[0375] As an example, the radio link between the UE 201 and the node 203 includes a cellular network link.

[0376] As an example, the sender of the first information block includes the node 203.

[0377] As an example, the receiver of the first information block includes the UE 201.

[0378] As an example, the sender of the first CSI reporting configuration includes the node 203.

[0379] As an example, the receiver of the first CSI reporting configuration includes the UE 201.

[0380] As an example, the sender of the second information block includes the node 203.

[0381] As an example, the receiver of the second information block includes the UE 201.

[0382] Example 3

[0383] Embodiment 3 exemplifies a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to an embodiment of the present application, as shown in the appendix Figure 3 as shown.

[0384] Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to an embodiment of the present application, as shown in the appendix Figure 3 as shown. Figure 3 It is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. Figure 3The radio protocol architecture of the control plane 300 for 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 shown with 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 is above PHY 301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs. Layer 2 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, and these sublayers terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides handover support for the first communication node device between the second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for disordered reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). For the first communication node device and the second communication node device in the user plane 350, the radio protocol architecture for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 is generally the same as the corresponding layers and sublayers in the control plane 300, but the 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 further includes an SDAP (Service Data Adaptation Protocol) sub-layer 356, and the SDAP sub-layer 356 is responsible for the mapping between QoS flows and data radio bearers (DRBs, Data Radio Bearers) to support the diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0385] As an example, the Figure 3 radio protocol architecture in is applicable to the first node in this application.

[0386] As an example, the Figure 3 radio protocol architecture in is applicable to the second node in this application.

[0387] As an example, the higher layer in this application refers to the layer above the physical layer.

[0388] As an example, the first information block is generated in the RRC sub-layer 306.

[0389] As an example, the first information block is generated in the MAC sub-layer 302 or the MAC sub-layer 352.

[0390] As an example, the first information block is generated in the PHY 301 or the PHY 351.

[0391] As an example, the first CSI reporting configuration is generated in the RRC sub-layer 306.

[0392] As an example, the second information block is generated in the RRC sub-layer 306.

[0393] As an example, the second information block is generated in the MAC sub-layer 302 or the MAC sub-layer 352.

[0394] As an example, the second information block is generated in the PHY 301 or the PHY 351.

[0395] Example 4

[0396] Example 4 exemplifies a schematic diagram of a first communication device and a second communication device according to an embodiment of this application, as shown in the appendix Figure 4 shown. The appendix Figure 4It is a block diagram of a first communication device 410 and a second communication device 450 that communicate with each other in an access network.

[0397] The first communication device 410 includes a controller / processor 475, a memory 476, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting processor 471, a transmitter / receiver 418, and an antenna 420.

[0398] 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.

[0399] 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 the functions of the L2 layer. In the DL (DownLink), the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation for the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmitting processor 416 and the multi-antenna transmitting processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmitting processor 416 implements coding 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), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmitting processor 471 performs digital space precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more parallel streams. The transmitting processor 416 then maps each parallel stream to subcarriers, multiplexes the modulated symbols with reference signals (e.g., pilots) in the time domain and / or frequency domain, and then uses the inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. Subsequently, the multi-antenna transmitting processor 471 performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmitting processor 471 into a radio frequency stream, and then provides it to different antennas 420.

[0400] 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 signals via its respective antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 perform various signal processing functions of the L1 layer. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receivers 454. The receive processor 456 uses the fast Fourier transform (FFT) to convert the baseband multi-carrier 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 receive processor 456, where the reference signal will be used for channel estimation, and the data signal recovers any parallel streams destined for the second communication device 450 after multi-antenna detection in the multi-antenna receive processor 458. The symbols on each parallel stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. Subsequently, the receive processor 456 decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. Subsequently, the upper layer data and control signals are provided to the controller / processor 459. The controller / processor 459 performs the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. In the DL, the controller / processor 459 provides demultiplexing between the transmission and the logical channel, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. Subsequently, the upper layer data packets are provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 for L3 processing. The controller / processor 459 is also responsible for error detection using the acknowledgment (ACK) and / or negative acknowledgment (NACK) protocols to support HARQ operations.

[0401] 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 a controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function at the first communication device 410 described in 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, and implements L2 layer functions for the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. A transmit processor 468 performs modulation mapping and channel coding processing. A multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Subsequently, the transmit processor 468 modulates the generated parallel streams into multi-carrier / single-carrier symbol streams, and after analog precoding / beamforming operations in the multi-antenna transmit processor 457, provides them to different antennas 452 via a transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and then provides it to the antenna 452.

[0402] In the transmission from the second communication device 450 to the first communication device 410, the functions at the first communication device 410 are similar to the receive functions 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 a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly implement the functions of the L1 layer. A controller / processor 475 implements L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using the ACK and / or NACK protocols to support HARQ operations.

[0403] As an example, 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 together with the at least one processor. The second communication device 450 is at least configured to: receive a first information block, the first information block indicating a first set of frequency domain resources and a second set of frequency domain resources, the first set of frequency domain resources including one or more RBs, and the second set of frequency domain resources including one or more RBs; receive a first CSI reporting configuration, the first CSI reporting configuration indicating a first reporting band and a first parameter; wherein, the first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first set of frequency domain resources; the first BWP includes a first frequency domain resource pool and a second frequency domain resource pool, the first frequency domain resource pool being composed of RBs in the first BWP that belong to the second set of frequency domain resources and are lower than the first set of frequency domain resources in the frequency domain, and the second frequency domain resource pool being composed of RBs in the first BWP that belong to the second set of frequency domain resources and are higher than the first set of frequency domain resources in the frequency domain; the first frequency domain resource pool includes a plurality of sub-bands, the second frequency domain resource pool includes a plurality of sub-bands, the sub-bands including one or more consecutive RBs; a first sub-band is the lowest sub-band in the first frequency domain resource pool, a second sub-band is the highest sub-band in the first frequency domain resource pool, a third sub-band is the lowest sub-band in the second frequency domain resource pool, and a fourth sub-band is the highest sub-band in the second frequency domain resource pool; for each sub-band in the first reporting band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0404] As an example, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: receiving a first information block, the first information block indicating a first set of frequency-domain resources and a second set of frequency-domain resources, the first set of frequency-domain resources including one or more RBs, the second set of frequency-domain resources including one or more RBs; receiving a first CSI reporting configuration, the first CSI reporting configuration indicating a first reporting band and a first parameter; wherein, the first CSI reporting configuration is associated with a first BWP, the first BWP overlapping with the first set of frequency-domain resources; the first BWP includes a first frequency-domain resource pool and a second frequency-domain resource pool, the first frequency-domain resource pool being composed of RBs in the first BWP that belong to the second set of frequency-domain resources and are lower than the first set of frequency-domain resources in the frequency domain, the second frequency-domain resource pool being composed of RBs in the first BWP that belong to the second set of frequency-domain resources and are higher than the first set of frequency-domain resources in the frequency domain; the first frequency-domain resource pool includes a plurality of sub-bands, the second frequency-domain resource pool includes a plurality of sub-bands, the sub-bands including one or more consecutive RBs; a first sub-band is the lowest sub-band in the first frequency-domain resource pool, a second sub-band is the highest sub-band in the first frequency-domain resource pool, a third sub-band is the lowest sub-band in the second frequency-domain resource pool, a fourth sub-band is the highest sub-band in the second frequency-domain resource pool; for each sub-band in the first reporting band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band, one or two precoding matrices are indicated, the number of precoding matrices indicated depending on the size of this sub-band and the first parameter.

[0405] As an example, 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 together with the at least one processor. The first communication device 410 is configured to at least: send a first information block, the first information block indicating a first set of frequency-domain resources and a second set of frequency-domain resources, the first set of frequency-domain resources including one or more RBs, and the second set of frequency-domain resources including one or more RBs; send a first CSI reporting configuration, the first CSI reporting configuration indicating a first reporting band and a first parameter; wherein, the first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first set of frequency-domain resources; the first BWP includes a first frequency-domain resource pool and a second frequency-domain resource pool, the first frequency-domain resource pool being composed of RBs in the first BWP that belong to the second set of frequency-domain resources and are lower than the first set of frequency-domain resources in the frequency domain, and the second frequency-domain resource pool being composed of RBs in the first BWP that belong to the second set of frequency-domain resources and are higher than the first set of frequency-domain resources in the frequency domain; the first frequency-domain resource pool includes a plurality of sub-bands, the second frequency-domain resource pool includes a plurality of sub-bands, the sub-bands including one or more consecutive RBs; a first sub-band is the lowest sub-band in the first frequency-domain resource pool, a second sub-band is the highest sub-band in the first frequency-domain resource pool, a third sub-band is the lowest sub-band in the second frequency-domain resource pool, and a fourth sub-band is the highest sub-band in the second frequency-domain resource pool; for each sub-band in the first reporting band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band, one or two precoding matrices are indicated, and the number of the indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0406] As an example, the first communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: sending a first information block indicating a first set of frequency-domain resources and a second set of frequency-domain resources, the first set of frequency-domain resources including one or more RBs, and the second set of frequency-domain resources including one or more RBs; sending a first CSI reporting configuration indicating a first reporting band and a first parameter; wherein the first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first set of frequency-domain resources; the first BWP includes a first frequency-domain resource pool and a second frequency-domain resource pool, the first frequency-domain resource pool being composed of RBs in the first BWP that belong to the second set of frequency-domain resources and are lower than the first set of frequency-domain resources in the frequency domain, and the second frequency-domain resource pool being composed of RBs in the first BWP that belong to the second set of frequency-domain resources and are higher than the first set of frequency-domain resources in the frequency domain; the first frequency-domain resource pool includes a plurality of sub-bands, the second frequency-domain resource pool includes a plurality of sub-bands, and each sub-band includes one or more consecutive RBs; the first sub-band is the lowest sub-band in the first frequency-domain resource pool, the second sub-band is the highest sub-band in the first frequency-domain resource pool, the third sub-band is the lowest sub-band in the second frequency-domain resource pool, and the fourth sub-band is the highest sub-band in the second frequency-domain resource pool; for each sub-band in the first reporting band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0407] As an example, the first node in the present application includes the second communication device 450.

[0408] As an example, the second node in the present application includes the first communication device 410.

[0409] 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, the data source 467} is used to receive the first information block in the present 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, the memory 476} is used to send the first information block in the present application.

[0410] 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, the data source 467} is used to receive the first CSI 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, the memory 476} is used to transmit the first CSI reporting configuration in this application.

[0411] 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, the data source 467} is used to receive the second information block 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, the memory 476} is used to transmit the second information block in this application.

[0412] Example 5

[0413] Example 5 illustrates a flowchart of a transmission according to an embodiment of this application, as shown in the appendix Figure 5 as shown. In the appendix Figure 5 , the first node U01 and the second node N02 are two communication nodes transmitted through the air interface respectively, where the steps in the dashed boxes F51 and F52 are optional respectively.

[0414] For The first node U01 , the first information block is received in step S5101; the second information block is received in step S5102; the first CSI reporting configuration is received in step S5103; the first CSI report is sent in step S5104.

[0415] For The second node N02 , the first information block is sent in step S5201; the second information block is sent in step S5202; the first CSI reporting configuration is sent in step S5203; the first CSI report is received in step S5204.

[0416] In Embodiment 5, the first information block indicates a first frequency-domain resource set and a second frequency-domain resource set, the first frequency-domain resource set includes one or more RBs, and the second frequency-domain resource set includes one or more RBs; the first CSI reporting configuration indicates a first reporting band and a first parameter; wherein, the first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first frequency-domain resource set; the first BWP includes a first frequency-domain resource pool and a second frequency-domain resource pool, the first frequency-domain resource pool consists of RBs in the first BWP that belong to the second frequency-domain resource set and are lower than the first frequency-domain resource set in the frequency domain, and the second frequency-domain resource pool consists of RBs in the first BWP that belong to the second frequency-domain resource set and are higher than the first frequency-domain resource set in the frequency domain; the first frequency-domain resource pool includes multiple subbands, the second frequency-domain resource pool includes multiple subbands, and each subband includes one or more consecutive RBs; the first subband is the lowest subband in the first frequency-domain resource pool, the second subband is the highest subband in the first frequency-domain resource pool, the third subband is the lowest subband in the second frequency-domain resource pool, and the fourth subband is the highest subband in the second frequency-domain resource pool; for each subband in the first reporting band that is the first subband, the second subband, the third subband, or the fourth subband, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this subband and the first parameter.

[0417] As an embodiment, the first node U01 is the first node in the present application.

[0418] As an embodiment, the second node N02 is the second node in the present application.

[0419] As an embodiment, the air interface between the second node N02 and the first node U01 includes a wireless interface between a base station device and a user equipment.

[0420] As an embodiment, the air interface between the second node N02 and the first node U01 includes a wireless interface between a relay node device and a user equipment.

[0421] As an embodiment, the air interface between the second node N02 and the first node U01 includes a wireless interface between user equipments.

[0422] As an embodiment, the second node N02 is a serving cell maintaining base station of the first node U01.

[0423] As an embodiment, the steps in the dashed box F51 exist.

[0424] As an embodiment, the steps in the dashed box F51 do not exist.

[0425] As an embodiment, the steps in the dashed box F51 exist. The method in the first node U01 used for wireless communication includes: receiving a second information block; wherein, the second information block indicates a reference time-domain resource set, the reference time-domain resource set includes one or more symbols configured as DL by higher-layer parameters, and in at least one symbol configured as DL by the higher-layer parameters in the reference time-domain resource set, at least one RB or at least one subcarrier belonging to the first frequency-domain resource set is used for uplink transmission.

[0426] As an embodiment, the steps in the dashed box F51 exist. The method in the second node N02 used for wireless communication includes: sending a second information block; wherein, the second information block indicates a reference time-domain resource set, the reference time-domain resource set includes one or more symbols configured as DL by higher-layer parameters, and in at least one symbol configured as DL by the higher-layer parameters in the reference time-domain resource set, at least one RB or at least one subcarrier belonging to the first frequency-domain resource set is used for uplink transmission.

[0427] As an embodiment, the steps in the dashed box F52 exist.

[0428] As an embodiment, the steps in the dashed box F52 do not exist.

[0429] As an embodiment, the steps in the dashed box F52 exist. The method in the first node U01 used for wireless communication includes: sending a first CSI report.

[0430] As an embodiment, the steps in the dashed box F52 exist. The method in the second node N02 used for wireless communication includes: receiving a first CSI report.

[0431] As an embodiment, the first CSI report is a single report of the first CSI report configuration.

[0432] As an embodiment, the first CSI report is an instance of a single report of the first CSI report configuration.

[0433] As an embodiment, the first CSI report includes CSI.

[0434] As an embodiment, the first CSI report includes one or more of CRI, SSBRI, L1-RSRP, L1-SINR, RI, PMI, CQI.

[0435] As an embodiment, the first CSI report includes PMI.

[0436] As an embodiment, is the start of the first frequency-domain resource pool, is the size of the first frequency-domain resource pool, is the start of the second frequency-domain resource pool, is the size of the second frequency-domain resource pool; the the the and the are non-negative integers respectively, and the the the and the depend on at least one of the first BWP, the first frequency-domain resource set, or the second frequency-domain resource set.

[0437] As an embodiment, the first given sub-band is any sub-band in the first reporting frequency band that is different from the first sub-band, the second sub-band, the third sub-band, and the fourth sub-band. The first given sub-band includes consecutive RBs, and the is a positive integer; when the value of the first parameter is 2, for the first given sub-band, two precoding matrices are indicated. The first precoding matrix among the two precoding matrices indicated for the first given sub-band corresponds to the first RBs of the first given sub-band, and the second precoding matrix among the two precoding matrices indicated for the first given sub-band corresponds to the last RBs of the first given sub-band.

[0438] As an embodiment, the depends on the first CSI reporting configuration and the first BWP.

[0439] As an embodiment, the size of the first sub-band depends on the first frequency-domain resource pool, and the size of the second sub-band depends on the first frequency-domain resource pool; the size of the third sub-band depends on the second frequency-domain resource pool, and the size of the fourth sub-band depends on the second frequency-domain resource pool.

[0440] As an embodiment, when the value of the first parameter is 2, when is greater than or equal to , for the sub-band in the first reporting frequency band that is the first sub-band, one precoding matrix is indicated; when is less than When, for the sub-band that is the first sub-band in the first reporting frequency band, two precoding matrices are indicated, the first precoding matrix among the two indicated precoding matrices corresponds to the first several RBs of the first sub-band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several RBs of the first sub-band; when is greater than or equal to , for the sub-band that is the third sub-band in the first reporting frequency band, one precoding matrix is indicated; when is less than , for the sub-band that is the third sub-band in the first reporting frequency band, two precoding matrices are indicated, the first precoding matrix among the two indicated precoding matrices corresponds to the first several RBs of the third sub-band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several RBs of the third sub-band; mod represents the modulo operation.

[0441] As an embodiment, when the value of the first parameter is 2, when is less than or equal to , for the sub-band that is the second sub-band in the first reporting frequency band, one precoding matrix is indicated; when is greater than , for the sub-band that is the second sub-band in the first reporting frequency band, two precoding matrices are indicated, the first precoding matrix among the two indicated precoding matrices corresponds to the first several RBs of the second sub-band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several RBs of the second sub-band; when is less than or equal to , for the sub-band that is the fourth sub-band in the first reporting frequency band, one precoding matrix is indicated; when is greater than , for the sub-band that is the fourth sub-band in the first reporting frequency band, two precoding matrices are indicated, the first precoding matrix among the two indicated precoding matrices corresponds to the first several RBs of the fourth sub-band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several RBs of the fourth sub-band; mod represents the modulo operation.

[0442] As an embodiment, when the value of the first parameter is 1, for each sub-band in the first reporting frequency band, one precoding matrix is indicated.

[0443] As an example, the first information block is transmitted on the PDSCH (Physical Downlink Shared Channel).

[0444] As an example, the first information block is transmitted on the PDCCH (Physical Downlink Control Channel).

[0445] As an example, the second information block is transmitted on the PDSCH.

[0446] As an example, the second information block is transmitted on the PDCCH.

[0447] As an example, the first CSI reporting configuration is transmitted on the PDSCH.

[0448] As an example, the reception of the first information block is not later than the reception of the first CSI reporting configuration.

[0449] As an example, the reception of the first information block is later than the reception of the first CSI reporting configuration.

[0450] As an example, the first information block and the first CSI reporting configuration are received simultaneously.

[0451] As an example, the first information block and the first CSI reporting configuration are received together.

[0452] As an example, the reception of the first information block is not later than the reception of the second information block.

[0453] As an example, the reception of the first information block is later than the reception of the second information block.

[0454] As an example, the first information block and the second information block are received simultaneously.

[0455] As an example, the first information block and the second information block are received together.

[0456] As an example, the first information block and the second information block are carried by the same RRC IE.

[0457] As an example, the first information block and the second information block are carried by different RRC IEs respectively.

[0458] Example 6

[0459] Embodiment 6 exemplifies a schematic diagram of a first frequency-domain resource pool and a second frequency-domain resource pool according to an embodiment of the present application; as shown in the appendix Figure 6 shown. In the appendix Figure 6 the guard band is optional, and the second frequency-domain resource set is divided into two discontinuous parts in the frequency domain.

[0460] In Embodiment 6, is the start of the first frequency-domain resource pool, is the size of the first frequency-domain resource pool, is the start of the second frequency-domain resource pool, is the size of the second frequency-domain resource pool; the the the and the are non-negative integers respectively, and the the the and the depend on at least one of the first BWP, the first frequency-domain resource set or the second frequency-domain resource set.

[0461] As an embodiment, the is a non-negative integer.

[0462] As an embodiment, the is a positive integer.

[0463] As an embodiment, the is a non-negative integer.

[0464] As an embodiment, the is a positive integer.

[0465] As an embodiment, the is a positive integer.

[0466] As an embodiment, the is a positive integer greater than 1.

[0467] As an embodiment, the is a positive integer.

[0468] As an embodiment, the is a positive integer greater than 1.

[0469] As an embodiment, the is the starting position of the first frequency-domain resource pool (startingposition).

[0470] As an embodiment, the is the starting RB of the first frequency-domain resource pool.

[0471] As an example, the is the number of the starting RB of the first frequency-domain resource pool.

[0472] As an example, the is the position of the starting RB of the first frequency-domain resource pool relative to CRB 0.

[0473] As an example, the is the number of the starting RB of the first frequency-domain resource pool relative to CRB 0.

[0474] As an example, the starting RB of the first frequency-domain resource pool is a CRB, and the is the number of the CRB.

[0475] As an example, CRBs are numbered upward from 0 in the frequency domain.

[0476] As an example, the is the number of RBs included in the first frequency-domain resource pool.

[0477] As an example, the is the number of CRBs included in the first frequency-domain resource pool.

[0478] As an example, the is the starting position of the second frequency-domain resource pool.

[0479] As an example, the is the starting RB of the second frequency-domain resource pool.

[0480] As an example, the is the number of the starting RB of the second frequency-domain resource pool.

[0481] As an example, the is the position of the starting RB of the second frequency-domain resource pool relative to CRB 0.

[0482] As an example, the is the number of the starting RB of the second frequency-domain resource pool relative to CRB 0.

[0483] As an example, the starting RB of the second frequency-domain resource pool is a CRB, and the is the number of the CRB.

[0484] As an example, the is the number of RBs included in the second frequency-domain resource pool.

[0485] As an embodiment, the is the number of CRBs included in the second frequency-domain resource pool.

[0486] As an embodiment, there is no guard band in Figure 6 the attachment.

[0487] As an embodiment, there is a guard band in Figure 6 the attachment.

[0488] As an embodiment, there is a guard band in Figure 6 the attachment, and the guard band includes at least one RB.

[0489] As an embodiment, there is a guard band in Figure 6 the attachment, and the guard band includes multiple RBs.

[0490] As an embodiment, the first information block indicates the guard band.

[0491] As an embodiment, the first information block implicitly indicates the guard band.

[0492] As an embodiment, the first information block indicates the first frequency-domain resource set and the second frequency-domain resource set, and the guard band includes RBs that are not in the first frequency-domain resource set and the second frequency-domain resource set.

[0493] As an embodiment, the first information block indicates the first frequency-domain resource set and the second frequency-domain resource set, and the guard band is composed of RBs that are not in the first frequency-domain resource set and the second frequency-domain resource set.

[0494] As an embodiment, the first information block indicates the first frequency-domain resource set and the second frequency-domain resource set in a carrier, and the guard band includes RBs in the carrier that are not in the first frequency-domain resource set and the second frequency-domain resource set.

[0495] As an embodiment, the first information block indicates the first frequency-domain resource set and the second frequency-domain resource set in a carrier, and the guard band is composed of RBs in the carrier that are not in the first frequency-domain resource set and the second frequency-domain resource set.

[0496] As an embodiment, the the the and the Depending on the first BWP, at least the first BWP in the first frequency-domain resource set or the second frequency-domain resource set.

[0497] As an embodiment, the The The And the Depending on the first BWP, at least the first frequency-domain resource set in the first frequency-domain resource set or the second frequency-domain resource set.

[0498] As an embodiment, the The The And the Depending on the first BWP, at least the second frequency-domain resource set in the first frequency-domain resource set or the second frequency-domain resource set.

[0499] As an embodiment, the The The And the Depending on the first BWP and the second frequency-domain resource set.

[0500] As an embodiment, the The The And the Depending on the first BWP, the first frequency-domain resource set and the second frequency-domain resource set.

[0501] As an embodiment, the The The And the Depending on the start of the first BWP and the size of the first BWP.

[0502] As an embodiment, the The The And the Depending on the start of the second frequency-domain resource set and the size of the second frequency-domain resource set.

[0503] As an embodiment, the The The And the Depending on the start of the first BWP, the size of the first BWP, the start of the second frequency-domain resource set and the size of the second frequency-domain resource set.

[0504] As an example, the second frequency-domain resource set includes two discontinuous parts, and the two parts of the second frequency-domain resource set respectively include a plurality of consecutive RBs. The The The and the depend on the start and size of each of the two parts of the second frequency-domain resource set.

[0505] As an example, the second frequency-domain resource set includes two discontinuous parts, and the two parts of the second frequency-domain resource set respectively include a plurality of consecutive RBs. The The The and the depend on the start of the first BWP, the size of the first BWP, and the start and size of each of the two parts of the second frequency-domain resource set.

[0506] As an example, is the start of the first BWP, is the size of the first BWP.

[0507] As an example, the is a non-negative integer.

[0508] As an example, the is a positive integer.

[0509] As an example, the is the starting position of the first BWP.

[0510] As an example, the is the starting RB of the first BWP.

[0511] As an example, the is the number of the starting RB of the first BWP.

[0512] As an example, the is the position of the starting RB of the first BWP relative to CRB 0.

[0513] As an example, the is the number of the starting RB of the first BWP relative to CRB 0.

[0514] As an example, the starting RB of the first BWP is a CRB, and the is the number of the one CRB.

[0515] As an example, the is the number of RBs included in the first BWP.

[0516] As an example, the is the number of CRBs included in the first BWP.

[0517] As an example, the first higher layer signaling indicates the and the

[0518] As an example, the first higher layer signaling is RRC signaling.

[0519] As an example, the first higher layer signaling includes at least one RRC IE.

[0520] As an example, the first higher layer signaling includes some or all fields in each RRC IE of the at least one RRC IE.

[0521] As an example, the first higher layer signaling is an RRC IE.

[0522] As an example, the first higher layer signaling is an RRC IE whose name includes BWP.

[0523] As an example, the first higher layer signaling is an RRC IE whose name includes BWP-Downlink.

[0524] As an example, the first higher layer signaling is an RRC IE whose name includes BWP-DownlinkCommon.

[0525] As an example, the first higher layer signaling is BWP-DownlinkCommon IE.

[0526] As an example, the first higher layer signaling is BWP IE.

[0527] As an example, the first higher layer signaling is BWP IE, and the locationAndBandwidth field in the first higher layer signaling indicates the and the

[0528] As an example, is the start of the part with a lower frequency domain position among the two parts of the second frequency domain resource set, is the size of the part with a lower frequency domain position among the two parts of the second frequency domain resource set.

[0529] As an example, the is a non - negative integer.

[0530] As an example, the is a positive integer.

[0531] As an example, the is the starting position of the part with a lower frequency - domain position among the two parts of the second frequency - domain resource set.

[0532] As an example, the is the starting RB of the part with a lower frequency - domain position among the two parts of the second frequency - domain resource set.

[0533] As an example, the is the number of the starting RB of the part with a lower frequency - domain position among the two parts of the second frequency - domain resource set.

[0534] As an example, the is the position of the starting RB of the part with a lower frequency - domain position among the two parts of the second frequency - domain resource set relative to CRB 0.

[0535] As an example, the is the number of the starting RB of the part with a lower frequency - domain position among the two parts of the second frequency - domain resource set relative to CRB 0.

[0536] As an example, the starting RB of the part with a lower frequency - domain position among the two parts of the second frequency - domain resource set is a CRB, and the is the number of the one CRB.

[0537] As an example, the is the number of RBs included in the part with a lower frequency - domain position among the two parts of the second frequency - domain resource set.

[0538] As an example, the is the number of CRBs included in the part with a lower frequency - domain position among the two parts of the second frequency - domain resource set.

[0539] As an example, is the start of the part with a higher frequency - domain position among the two parts of the second frequency - domain resource set, is the size of the part with a higher frequency - domain position among the two parts of the second frequency - domain resource set.

[0540] As an example, the is a non - negative integer.

[0541] As an embodiment, the is a positive integer.

[0542] As an embodiment, the is a positive integer.

[0543] As an embodiment, the is the starting position of the part with a higher frequency - domain position among the two parts of the second frequency - domain resource set.

[0544] As an embodiment, the is the starting RB of the part with a higher frequency - domain position among the two parts of the second frequency - domain resource set.

[0545] As an embodiment, the is the number of the starting RB of the part with a higher frequency - domain position among the two parts of the second frequency - domain resource set.

[0546] As an embodiment, the is the position of the starting RB of the part with a higher frequency - domain position among the two parts of the second frequency - domain resource set relative to CRB 0.

[0547] As an embodiment, the is the number of the starting RB of the part with a higher frequency - domain position among the two parts of the second frequency - domain resource set relative to CRB 0.

[0548] As an embodiment, the starting RB of the part with a higher frequency - domain position among the two parts of the second frequency - domain resource set is a CRB, and the is the number of the one CRB.

[0549] As an embodiment, the is the number of RBs included in the part with a higher frequency - domain position among the two parts of the second frequency - domain resource set.

[0550] As an embodiment, the is the number of CRBs included in the part with a higher frequency - domain position among the two parts of the second frequency - domain resource set.

[0551] As an embodiment, the first information block indicates the the the and the

[0552] As an example, the first information block directly indicates the the the and the

[0553] As an example, the first information block indirectly indicates the the the and the

[0554] As an example, the first information block directly indicates the and the

[0555] As an example, the first information block directly indicates the and the

[0556] As an example, the first information block indirectly indicates the and the

[0557] As an example, the is equal to the

[0558] As an example, the is equal to the plus the then minus the

[0559] As an example, the is equal to the

[0560] As an example, the is equal to the plus the then minus the

[0561] Example 7

[0562] Example 7 illustrates a schematic diagram of a first given subband according to an embodiment of the present application; as shown in the appendix Figure 7 as shown.

[0563] In Example 7, the first given subband is any subband in the first reported frequency band that is different from the first subband, the second subband, the third subband, and the fourth subband. The first given subband includes consecutive RBs, the is a positive integer; when the value of the first parameter is 2, for the first given sub-band, two precoding matrices are indicated, and the first precoding matrix among the two precoding matrices indicated for the first given sub-band corresponds to the first several RBs of the first given sub-band, and the second precoding matrix among the two precoding matrices indicated for the first given sub-band corresponds to the last several RBs of the first given sub-band.

[0564] As an example, the first given sub-band is a sub-band in the first frequency-domain resource pool, and the first given sub-band is different from the first sub-band and the second sub-band.

[0565] As an example, the first given sub-band is a sub-band in the second frequency-domain resource pool, and the first given sub-band is different from the third sub-band and the fourth sub-band.

[0566] As an example, the first given sub-band is any sub-band in the first frequency-domain resource pool that is different from the first sub-band and the second sub-band.

[0567] As an example, the first given sub-band is any sub-band in the second frequency-domain resource pool that is different from the third sub-band and the fourth sub-band.

[0568] As an example, the is an even number.

[0569] As an example, the is a positive integer multiple of 4.

[0570] As an example, the higher-layer parameter codebookType in the first CSI reporting configuration is set to typeII-r16.

[0571] As an example, the higher-layer parameter codebookType in the first CSI reporting configuration is set to typeII-r16. When the value of the first parameter is 2, for the first given sub-band, two precoding matrices are indicated, and the first precoding matrix among the two precoding matrices indicated for the first given sub-band corresponds to the first several RBs of the first given sub-band, and the second precoding matrix among the two precoding matrices indicated for the first given sub-band corresponds to the last several RBs of the first given sub-band.

[0572] As a sub-example of the above example, the PMI indicates the two precoding matrices.

[0573] As an example, the first several RBs of the first given subband are the RBs with lower frequency domain positions in the first given subband.

[0574] As an example, the last several RBs of the first given subband are the RBs with higher frequency domain positions in the first given subband.

[0575] As an example, the first several RBs of the first given subband are the RBs with lower frequencies in the first given subband.

[0576] As an example, the last several RBs of the first given subband are the RBs with higher frequencies in the first given subband.

[0577] As an example, the first several RBs of the first given subband are the RBs with smaller RB numbers in the first given subband.

[0578] As an example, the last several RBs of the first given subband are the RBs with larger RB numbers in the first given subband.

[0579] As an example, the first several RBs of the first given subband are the RBs with smaller RB indexes in the first given subband.

[0580] As an example, the last several RBs of the first given subband are the RBs with larger RB indexes in the first given subband.

[0581] Example 8

[0582] Example 8 exemplifies a schematic diagram of subbands included in a first frequency domain resource pool and subbands included in a second frequency domain resource pool according to an embodiment of the present application; as shown in the Figure 8 attachment.

[0583] In Example 8, the first frequency domain resource pool includes multiple subbands, and the second frequency domain resource pool includes multiple subbands.

[0584] As an example, the first frequency domain resource pool includes at least the first subband and the second subband.

[0585] As an embodiment, the first frequency domain resource pool includes the first sub-band, the second sub-band, and other sub-bands.

[0586] As an embodiment, the second frequency domain resource pool includes at least the third sub-band and the fourth sub-band.

[0587] As an embodiment, the second frequency domain resource pool includes the third sub-band, the fourth sub-band, and other sub-bands.

[0588] As an embodiment, except for the first sub-band, the second sub-band, the third sub-band, and the fourth sub-band, the number of RBs included in the other sub-bands in the first frequency domain resource pool and the second frequency domain resource pool is the same.

[0589] As an embodiment, except for the first sub-band, the second sub-band, the third sub-band, and the fourth sub-band, the number of RBs included in the other sub-bands in the first frequency domain resource pool and the second frequency domain resource pool is

[0590] As an embodiment, the first reporting frequency band is a subset of all the sub-bands included in the first frequency domain resource pool and the second frequency domain resource pool.

[0591] Example 9

[0592] Embodiment 9 exemplifies a schematic diagram according to an embodiment of the present application relying on the first CSI reporting configuration and the first BWP; as shown in the appendix Figure 9 as shown.

[0593] In Embodiment 9, the relies on the first CSI reporting configuration and the first BWP.

[0594] As an embodiment, the is related to the number of RBs included in the first BWP.

[0595] As an embodiment, the increases as the number of RBs included in the first BWP increases.

[0596] As an embodiment, the increases as the bandwidth of the first BWP increases.

[0597] As an embodiment, the is indicated by the first CSI reporting configuration.

[0598] As an example, the higher layer parameter subbandSize in the first CSI reporting configuration indicates the

[0599] As an example, the first candidate value and the second candidate value are two candidate values of the The higher layer parameter subbandSize in the first CSI reporting configuration indicates a value from the first candidate value and the second candidate value for the indicate a value.

[0600] As an example, the first candidate value and the second candidate value depend on the first BWP.

[0601] As an example, the first candidate value and the second candidate value depend on the bandwidth of the first BWP.

[0602] As an example, the first candidate value and the second candidate value depend on the number of RBs included in the first BWP.

[0603] As an example, the first node determines the first candidate value and the second candidate value according to the bandwidth of the first BWP.

[0604] As an example, the first node determines the first candidate value and the second candidate value according to the number of RBs included in the first BWP.

[0605] As an example, the first candidate value and the second candidate value are predefined.

[0606] As an example, the first candidate value and the second candidate value are fixed.

[0607] As an example, the first candidate value and the second candidate value are known.

[0608] As an example, the relationship between the first candidate value and the second candidate value and the first BWP specifically refers to Section 5.2.1.4 of 3GPP TS 38.214.

[0609] Example 10

[0610] Example 10 exemplifies a schematic diagram of the size of the first subband, the size of the second subband, the size of the third subband, and the size of the fourth subband according to an embodiment of the present application; as shown in the appendix Figure 10 shown.

[0611] In Embodiment 10, the size of the first sub-band depends on the first frequency-domain resource pool, and the size of the second sub-band depends on the first frequency-domain resource pool; the size of the third sub-band depends on the second frequency-domain resource pool, and the size of the fourth sub-band depends on the second frequency-domain resource pool.

[0612] As an embodiment, the size of the first sub-band depends on the position of the first frequency-domain resource pool in the frequency domain.

[0613] As an embodiment, the size of the first sub-band depends on the start of the first frequency-domain resource pool.

[0614] As an embodiment, the size of the first sub-band depends on the starting position of the first frequency-domain resource pool.

[0615] As an embodiment, the size of the first sub-band depends on the starting RB of the first frequency-domain resource pool.

[0616] As an embodiment, the size of the first sub-band depends on the

[0617] As an embodiment, the size of the first sub-band depends on the

[0618] As an embodiment, the size of the first sub-band depends on the and the

[0619] As an embodiment, the number of RBs included in the first sub-band is mod represents the modulo operation.

[0620] As an embodiment, the size of the second sub-band depends on the position of the first frequency-domain resource pool in the frequency domain.

[0621] As an embodiment, the size of the second sub-band depends on the start of the first frequency-domain resource pool.

[0622] As an embodiment, the size of the second sub-band depends on the starting position of the first frequency-domain resource pool.

[0623] As an embodiment, the size of the second sub-band depends on the starting RB of the first frequency-domain resource pool.

[0624] As an embodiment, the size of the second sub-band depends on the size of the first frequency-domain resource pool.

[0625] As an embodiment, the size of the second sub-band depends on the number of RBs included in the first frequency-domain resource pool.

[0626] As an example, the size of the second sub-band depends on the

[0627] As an example, the size of the second sub-band depends on the

[0628] As an example, the size of the second sub-band depends on the

[0629] As an example, the size of the second sub-band depends on the the and the

[0630] As an example, when the number of RBs included in the second sub-band is mod represents modulo operation.

[0631] As an example, when the number of RBs included in the second sub-band is the

[0632] As an example, the size of the third sub-band depends on the position of the second frequency-domain resource pool in the frequency domain.

[0633] As an example, the size of the third sub-band depends on the start of the second frequency-domain resource pool.

[0634] As an example, the size of the third sub-band depends on the start position of the second frequency-domain resource pool.

[0635] As an example, the size of the third sub-band depends on the starting RB of the second frequency-domain resource pool.

[0636] As an example, the size of the third sub-band depends on the

[0637] As an example, the size of the third sub-band depends on the

[0638] As an example, the size of the third sub-band depends on the and the

[0639] As an example, the number of RBs included in the third sub-band is mod represents modulo operation.

[0640] As an example, the size of the fourth sub-band depends on the position of the second frequency-domain resource pool in the frequency domain.

[0641] As an embodiment, the size of the fourth sub-band depends on the start of the second frequency-domain resource pool.

[0642] As an embodiment, the size of the fourth sub-band depends on the starting position of the second frequency-domain resource pool.

[0643] As an embodiment, the size of the fourth sub-band depends on the starting RB of the second frequency-domain resource pool.

[0644] As an embodiment, the size of the fourth sub-band depends on the size of the second frequency-domain resource pool.

[0645] As an embodiment, the size of the fourth sub-band depends on the number of RBs included in the second frequency-domain resource pool.

[0646] As an embodiment, the size of the fourth sub-band depends on the

[0647] As an embodiment, the size of the fourth sub-band depends on the

[0648] As an embodiment, the size of the fourth sub-band depends on the

[0649] As an embodiment, the size of the fourth sub-band depends on the the and the

[0650] As an embodiment, when at this time, the number of RBs included in the fourth sub-band is mod represents the modulo operation.

[0651] As an embodiment, when at this time, the number of RBs included in the fourth sub-band is the

[0652] Example 11

[0653] Example 11 exemplifies a schematic diagram for indicating a precoding matrix for a first sub-band according to an embodiment of the present application; as shown in the appendix Figure 11 as shown.

[0654] In Example 11, when the value of the first parameter is 2, when greater than or equal to at this time, for the sub-band that is the first sub-band in the first reporting frequency band, a precoding matrix is indicated; when less than When it is the sub - band that is the first sub - band in the first reporting frequency band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first several RBs of the first sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several RBs of the first sub - band; mod represents modulo operation.

[0655] Example 12

[0656] Embodiment 12 exemplifies a schematic diagram of indicating a precoding matrix for a third sub - band according to an embodiment of the present application; as shown in the appendix Figure 12 as follows.

[0657] In Embodiment 12, when the value of the first parameter is 2, when greater than or equal to ..., for the sub - band that is the third sub - band in the first reporting frequency band, one precoding matrix is indicated; when less than ..., for the sub - band that is the third sub - band in the first reporting frequency band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first several RBs of the third sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several RBs of the third sub - band; mod represents modulo operation.

[0658] Example 13

[0659] Embodiment 13 exemplifies a schematic diagram of indicating a precoding matrix for a second sub - band according to an embodiment of the present application; as shown in the appendix Figure 13 as follows.

[0660] In Embodiment 13, when the value of the first parameter is 2, when less than or equal to ..., for the sub - band that is the second sub - band in the first reporting frequency band, one precoding matrix is indicated; when greater than ..., for the sub - band that is the second sub - band in the first reporting frequency band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first several RBs of the second sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several RBs of the second sub - band; mod represents modulo operation.

[0661] Example 14

[0662] Embodiment 14 exemplifies a schematic diagram of a precoding matrix for a fourth sub - band indication according to an embodiment of the present application; as shown in the appendix Figure 14 as follows.

[0663] In Embodiment 14, when the value of the first parameter is 2, when less than or equal to a precoding matrix is indicated for a sub - band that is the fourth sub - band in the first reporting frequency band; when greater than two precoding matrices are indicated for a sub - band that is the fourth sub - band in the first reporting frequency band. The first precoding matrix among the two indicated precoding matrices corresponds to the first several resource blocks (RBs) of the fourth sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last several resource blocks (RBs) of the fourth sub - band; mod represents the modulo operation.

[0664] Example 15

[0665] Embodiment 15 exemplifies a schematic diagram of a precoding matrix indicated for each sub - band when the first parameter is 1 according to an embodiment of the present application; as shown in the appendix Figure 15 as follows.

[0666] In Embodiment 15, when the value of the first parameter is 1, a precoding matrix is indicated for each sub - band in the first reporting frequency band.

[0667] As an embodiment, when the value of the first parameter is 1, only one precoding matrix is indicated for each sub - band in the first reporting frequency band.

[0668] As an embodiment, when the value of the first parameter is 1, a precoding matrix is indicated for each sub - band that is the first sub - band, the second sub - band, the third sub - band, or the fourth sub - band in the first reporting frequency band.

[0669] As an embodiment, when the value of the first parameter is 1, a precoding matrix is indicated for each sub - band that is different from the first sub - band, the second sub - band, the third sub - band, and the fourth sub - band in the first reporting frequency band.

[0670] Example 16

[0671] Example 16 illustrates a schematic diagram of a second information block according to an embodiment of the present application; as shown in the attached Figure 16 figure.

[0672] In Example 16, the second information block indicates a set of reference time-domain resources, the set of reference time-domain resources includes one or more symbols configured as DL by higher-layer parameters, and in at least one symbol of the set of reference time-domain resources configured as DL by the higher-layer parameters, at least one RB or at least one subcarrier belonging to the first set of frequency-domain resources is used for uplink transmission.

[0673] As an embodiment, the second information block is carried by higher-layer signaling.

[0674] As an embodiment, the second information block is carried by RRC signaling.

[0675] As an embodiment, the second information block includes all or part of the fields in an RRC IE.

[0676] As an embodiment, the second information block includes all or part of the fields in each of multiple RRC IEs.

[0677] As an embodiment, the second information block includes all or part of the fields in the TDD-UL-DL-ConfigCommon IE.

[0678] As an embodiment, the second information block includes all or part of the fields in the TDD-UL-DL-ConfigDedicated IE.

[0679] As an embodiment, the second information block includes all or part of the fields in the ServingCellConfig IE.

[0680] As an embodiment, the second information block includes all or part of the fields in the ServingCellConfigCommonSIB IE.

[0681] As an embodiment, the second information block includes all or part of the fields in the ServingCellConfigCommon IE.

[0682] As an embodiment, the second information block is carried by at least one RRC IE.

[0683] As an embodiment, the second information block is carried by the TDD-UL-DL-ConfigCommon IE.

[0684] As an embodiment, the second information block is carried by the TDD-UL-DL-ConfigDedicated IE.

[0685] As an embodiment, the second information block is carried by the ServingCellConfig IE.

[0686] As an embodiment, the second information block is carried by the ServingCellConfigCommonSIB IE.

[0687] As an embodiment, the second information block is carried by the ServingCellConfigCommon IE.

[0688] As an embodiment, the name of an IE carrying the second information block includes TDD-UL-DL-Config.

[0689] As an embodiment, the name of an IE carrying the second information block includes ServingCellConfig.

[0690] As an embodiment, the second information block is carried by a MAC CE (Medium Access Control layer Control Element).

[0691] As an embodiment, the second information block includes a MAC CE.

[0692] As an embodiment, the second information block is carried by DCI (Downlink Control Information).

[0693] As an embodiment, the second information block includes DCI.

[0694] As an embodiment, the second information block includes one or more fields in a DCI.

[0695] As an embodiment, the second information block is carried by DCI format 2_0.

[0696] As an embodiment, the second information block includes DCI format 2_0.

[0697] As an embodiment, the second information block is carried by RRC signaling and a MAC CE together.

[0698] As an embodiment, the second information block is carried by higher layer signaling and DCI together.

[0699] As an embodiment, the second information block explicitly indicates the reference time-domain resource set.

[0700] As an embodiment, the second information block implicitly indicates the reference time-domain resource set.

[0701] As an embodiment, the second information block indicates the period and time offset of the reference time-domain resource set.

[0702] As an embodiment, the second information block indicates the time-domain resources included in the reference time-domain resource set within one period.

[0703] As an embodiment, the second information block indicates the symbols included in the reference time-domain resource set within one period.

[0704] As an embodiment, the second information block indicates the time slots included in the reference time-domain resource set within one period.

[0705] As an embodiment, the second information block indicates which time slots belong to the reference time-domain resource set.

[0706] As an embodiment, the second information block indicates which symbols belong to the reference time-domain resource set.

[0707] As an embodiment, the second information block indicates which time slots within one period belong to the reference time-domain resource set.

[0708] As an embodiment, the second information block indicates which symbols within one period belong to the reference time-domain resource set.

[0709] As an embodiment, the second information block indicates the positions of the time slots included in the reference time-domain resource set within one period.

[0710] As an embodiment, the second information block indicates the positions of the symbols included in the reference time-domain resource set within one period.

[0711] As an embodiment, the second information block explicitly configures the reference time-domain resource set.

[0712] As an embodiment, the second information block explicitly configures the period of the reference time-domain resource set.

[0713] As an embodiment, the second information block explicitly configures the period and time offset of the reference time-domain resource set.

[0714] As an embodiment, the second information block explicitly configures the positions of the time slots included in the reference time-domain resource set within one period.

[0715] As an example, the second information block explicitly configures the positions of the symbols included in the reference time domain resource set within one period.

[0716] As an example, the second information block configures the symbols in the reference time domain resource set as the first type.

[0717] As an example, the second information block indicates the reference time domain resource set by configuring the symbols in the reference time domain resource set as the first type.

[0718] As an example, the first type is different from uplink (UL) and downlink (DL).

[0719] As an example, the first type is different from uplink, downlink, and Flexible.

[0720] As an example, the first type is different from sidelink.

[0721] As an example, the symbols of the first type are SBFD symbols.

[0722] As an example, the symbols of the first type are configured as DL or Flexible by the higher layer parameters.

[0723] As an example, the symbols of the first type are configured as DL by the higher layer parameters, and one or more subcarriers in the symbols of the first type are used for uplink transmission.

[0724] As an example, the symbols of the first type are configured as DL by the higher layer parameters, and one or more RBs in the symbols of the first type are used for uplink transmission.

[0725] As an example, the symbols of the first type are configured as DL by the higher layer parameters, and the symbols of the first type support uplink transmission.

[0726] As an example, if a symbol is configured or indicated as the first type, the one symbol is used for the full-duplex / SBFD mode.

[0727] As an example, if a symbol is configured or indicated as the first type, the one symbol is simultaneously used for both uplink and downlink.

[0728] As an example, if a symbol is configured or indicated as the first type, the one symbol is used for uplink on a part of the RBs and for downlink on another part of the RBs.

[0729] As a sub - embodiment of the above - mentioned embodiment, the part of the RBs and the other part of the RBs belong to the same serving cell.

[0730] As a sub - embodiment of the above - mentioned embodiment, the part of the RBs and the other part of the RBs belong to the same BWP.

[0731] As a sub - embodiment of the above - mentioned embodiment, the part of the RBs belongs to the first frequency - domain resource set, and the other part of the RBs belongs to the second frequency - domain resource set.

[0732] As an embodiment, if a symbol is configured or indicated as a type different from the first type, the symbol is not used for the full - duplex / SBFD mode.

[0733] As an embodiment, if a symbol is configured or indicated as a type different from the first type, the symbol is only used for the uplink or only used for the downlink.

[0734] As an embodiment, the higher - layer parameter is an RRC parameter.

[0735] As an embodiment, the higher - layer parameter includes tdd - UL - DL - ConfigurationCommon.

[0736] As an embodiment, the higher - layer parameter includes tdd - UL - DL - ConfigurationDedicated.

[0737] As an embodiment, the higher - layer parameter includes both tdd - UL - DL - ConfigurationCommon and tdd - UL - DL - ConfigurationDedicated.

[0738] As an embodiment, the higher - layer parameter includes at least one of tdd - UL - DL - ConfigurationCommon or tdd - UL - DL - ConfigurationDedicated.

[0739] As an embodiment, the higher - layer parameter is tdd - UL - DL - ConfigurationCommon.

[0740] As an embodiment, the reference time - domain resource set includes one or more symbols.

[0741] As an embodiment, the reference time - domain resource set only includes one symbol.

[0742] As an example, the set of reference time-domain resources includes a plurality of consecutive symbols.

[0743] As an example, the set of reference time-domain resources includes a plurality of non-consecutive symbols.

[0744] As an example, the set of reference time-domain resources is periodic.

[0745] As an example, the set of reference time-domain resources includes only one symbol in one period.

[0746] As an example, the set of reference time-domain resources includes a plurality of consecutive symbols in one period.

[0747] As an example, the set of reference time-domain resources includes a plurality of non-consecutive symbols in one period.

[0748] As an example, the set of reference time-domain resources includes one or more symbols of the first type.

[0749] As an example, the set of reference time-domain resources consists of one or more symbols of the first type.

[0750] As an example, the set of reference time-domain resources includes at least one slot.

[0751] As an example, the set of reference time-domain resources includes at least one subframe.

[0752] As an example, the symbol is a single-carrier symbol.

[0753] As an example, the symbol is a multi-carrier symbol.

[0754] As an example, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0755] As an example, the multi-carrier symbol is obtained after the output of a transform precoder undergoes OFDM symbol generation.

[0756] As an example, the multi-carrier symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

[0757] As an example, the multi-carrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0758] As an example, the multi-carrier symbol is an FBMC (Filter Bank Multi Carrier) symbol.

[0759] As an example, the multi-carrier symbol includes a CP (Cyclic Prefix).

[0760] As an example, the set of reference time-domain resources includes symbols that are simultaneously used for both uplink transmission and downlink transmission.

[0761] As an example, any symbol in the set of reference time-domain resources can be simultaneously used for both uplink transmission and downlink transmission.

[0762] As an example, any symbol in the set of reference time-domain resources is simultaneously used for both uplink transmission and downlink transmission.

[0763] As an example, at least one symbol in the set of reference time-domain resources is simultaneously used for both uplink transmission and downlink transmission.

[0764] As an example, at least one symbol in the set of reference time-domain resources is configured to be used for both uplink and downlink.

[0765] As an example, at least one symbol in the set of reference time-domain resources is used for both uplink and downlink.

[0766] As an example, each symbol in the set of reference time-domain resources is simultaneously used for both uplink transmission and downlink transmission.

[0767] As an example, each symbol in the set of reference time-domain resources is configured to be used for both uplink and downlink.

[0768] As an example, each symbol in the set of reference time-domain resources is used for both uplink and downlink.

[0769] As an example, at least one symbol in the set of reference time-domain resources is configured to be used for uplink in some RBs and for downlink in other RBs.

[0770] As an example, at least one symbol in the set of reference time-domain resources is used for uplink in some RBs and for downlink in other RBs.

[0771] As an example, each symbol in the set of reference time-domain resources is configured for uplink in a part of the RBs and for downlink in another part of the RBs.

[0772] As an example, each symbol in the set of reference time-domain resources is used for uplink in a part of the RBs and for downlink in another part of the RBs.

[0773] As an example, in at least one symbol of the set of reference time-domain resources, at least one RB or at least one subcarrier belonging to the first set of frequency-domain resources is used for uplink transmission, and at least one RB or at least one subcarrier belonging to the second set of frequency-domain resources is used for downlink transmission.

[0774] As an example, in at least one symbol of the set of reference time-domain resources, the RBs or subcarriers belonging to the first set of frequency-domain resources are configured for uplink transmission, and the RBs or subcarriers belonging to the second set of frequency-domain resources are configured for downlink transmission.

[0775] As an example, in each symbol of the set of reference time-domain resources, at least one RB or at least one subcarrier belonging to the first set of frequency-domain resources is used for uplink transmission, and at least one RB or at least one subcarrier belonging to the second set of frequency-domain resources is used for downlink transmission.

[0776] As an example, in each symbol of the set of reference time-domain resources, the RBs or subcarriers belonging to the first set of frequency-domain resources are configured for uplink transmission, and the RBs or subcarriers belonging to the second set of frequency-domain resources are configured for downlink transmission.

[0777] As an example, in at least one symbol of the set of reference time-domain resources that is configured as DL by the higher layer parameters, at least one RB or at least one subcarrier belonging to the first set of frequency-domain resources is used for uplink transmission, and at least one RB or at least one subcarrier belonging to the second set of frequency-domain resources is used for downlink transmission.

[0778] As an example, in at least one symbol of the set of reference time-domain resources that is configured as DL by the higher layer parameters, the RBs or subcarriers belonging to the first set of frequency-domain resources are configured for uplink transmission, and the RBs or subcarriers belonging to the second set of frequency-domain resources are configured for downlink transmission.

[0779] As an example, in each symbol of the reference time-domain resource set configured as DL by the higher-layer parameters, at least one RB or at least one subcarrier belonging to the first frequency-domain resource set is used for uplink transmission, and at least one RB or at least one subcarrier belonging to the second frequency-domain resource set is used for downlink transmission.

[0780] As an example, in each symbol of the reference time-domain resource set configured as DL by the higher-layer parameters, the RB or subcarrier belonging to the first frequency-domain resource set is configured for uplink transmission, and the RB or subcarrier belonging to the second frequency-domain resource set is configured for downlink transmission.

[0781] As an example, the reference time-domain resource set includes symbols used for full-duplex / SBFD.

[0782] As an example, each symbol in the reference time-domain resource set is used for full-duplex / SBFD.

[0783] As an example, any symbol not belonging to the reference time-domain resource set is only used for uplink or only used for downlink.

[0784] As an example, any symbol not belonging to the reference time-domain resource set is only configured for uplink or only configured for downlink.

[0785] As an example, any symbol in the reference time-domain resource set is configured as DL by the higher-layer parameters.

[0786] As an example, any symbol in the reference time-domain resource set is configured as DL or Flexible by the higher-layer parameters.

[0787] As an example, each symbol in the reference time-domain resource set is configured as DL by the higher-layer parameters.

[0788] As an example, each symbol in the reference time-domain resource set is configured as DL or Flexible by the higher-layer parameters.

[0789] As an example, the reference time-domain resource set includes a plurality of symbols, at least one symbol in the reference time-domain resource set is configured as DL by the higher-layer parameters, and at least one symbol in the reference time-domain resource set is configured as Flexible by the higher-layer parameters.

[0790] As an example, in at least one symbol of the reference time-domain resource set, the RS resource for calculating the channel measurement of the first CSI report is only valid in the second frequency domain.

[0791] As an example, in each symbol in the set of reference time-domain resources, the RS resources for channel measurement used to calculate the first CSI report are only valid in the second frequency-domain resource.

[0792] As an example, in any symbol in the set of reference time-domain resources, the RS resources for channel measurement used to calculate the first CSI report are only valid in the second frequency-domain resource.

[0793] As an example, the meaning of "the RS resources for channel measurement used to calculate the first CSI report are only valid in the second frequency-domain resource" includes that the first node considers that the RS resources for channel measurement used to calculate the first CSI report are only valid in the second frequency-domain resource.

[0794] As an example, the meaning of "the RS resources for channel measurement used to calculate the first CSI report are only valid in the second frequency-domain resource" includes that the first node only receives, in the set of the second frequency-domain resources, the RS resources for channel measurement used to calculate the first CSI report.

[0795] As an example, the meaning of "the RS resources for channel measurement used to calculate the first CSI report are only valid in the second frequency-domain resource" includes that the first node only receives, in the frequency-domain resources belonging to the set of the second frequency-domain resources in the first BWP, the RS resources for channel measurement used to calculate the first CSI report.

[0796] As an example, the meaning of "the RS resources for channel measurement used to calculate the first CSI report are only valid in the second frequency-domain resource" includes that the first node obtains the channel measurement used to calculate the first CSI report only based on the RS resources belonging to the set of the second frequency-domain resources.

[0797] As an example, the meaning of "the RS resources for channel measurement used to calculate the first CSI report are only valid in the second frequency-domain resource" includes that the first node obtains the channel measurement used to calculate the first CSI report only based on the RS resources belonging to the set of the second frequency-domain resources in the first BWP.

[0798] Example 17

[0799] Example 17 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application; as shown in the appendix Figure 17 shown. In the appendix Figure 17 In it, the processing device 1700 in the first node includes a first processor 1701.

[0800] As an example, the first node is a user equipment.

[0801] As an example, the user equipment is a terminal.

[0802] As an example, the first node is a terminal.

[0803] As an example, the first node is a relay node device.

[0804] As an example, the first processor 1701 includes at least one of {antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0805] As an example, the first processor 1701 includes at least one of {antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0806] The first processor 1701 receives a first information block, where the first information block indicates a first set of frequency domain resources and a second set of frequency domain resources, the first set of frequency domain resources includes one or more RBs, and the second set of frequency domain resources includes one or more RBs; the first processor 1701 receives a first CSI reporting configuration, where the first CSI reporting configuration indicates a first reporting band and a first parameter.

[0807] In Embodiment 17, the first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first set of frequency domain resources; the first BWP includes a first frequency domain resource pool and a second frequency domain resource pool, the first frequency domain resource pool is composed of RBs in the first BWP that belong to the second set of frequency domain resources and are lower than the first set of frequency domain resources in the frequency domain, and the second frequency domain resource pool is composed of RBs in the first BWP that belong to the second set of frequency domain resources and are higher than the first set of frequency domain resources in the frequency domain; the first frequency domain resource pool includes multiple sub-bands, the second frequency domain resource pool includes multiple sub-bands, and a sub-band includes one or more consecutive RBs; the first sub-band is the lowest sub-band in the first frequency domain resource pool, the second sub-band is the highest sub-band in the first frequency domain resource pool, the third sub-band is the lowest sub-band in the second frequency domain resource pool, and the fourth sub-band is the highest sub-band in the second frequency domain resource pool; for each sub-band in the first reporting band that is the first sub-band, the second sub-band, the third sub-band, or the fourth sub-band, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this sub-band and the first parameter.

[0808] As an example, is the start of the first frequency-domain resource pool, is the size of the first frequency-domain resource pool, is the start of the second frequency-domain resource pool, is the size of the second frequency-domain resource pool; the the the and the are non-negative integers respectively, and the the the and the depend on at least one of the first BWP, the first frequency-domain resource set, or the second frequency-domain resource set.

[0809] As an example, the first given sub-band is any sub-band in the first reporting frequency band that is different from the first sub-band, the second sub-band, the third sub-band, and the fourth sub-band. The first given sub-band includes consecutive RBs, and the is a positive integer; when the value of the first parameter is 2, for the first given sub-band, two precoding matrices are indicated. The first precoding matrix among the two precoding matrices indicated for the first given sub-band corresponds to the first RBs of the first given sub-band, and the second precoding matrix among the two precoding matrices indicated for the first given sub-band corresponds to the last RBs of the first given sub-band.

[0810] As an example, the depends on the first CSI reporting configuration and the first BWP.

[0811] As an example, the size of the first sub-band depends on the first frequency-domain resource pool, and the size of the second sub-band depends on the first frequency-domain resource pool; the size of the third sub-band depends on the second frequency-domain resource pool, and the size of the fourth sub-band depends on the second frequency-domain resource pool.

[0812] As an example, when the value of the first parameter is 2, when is greater than or equal to , for the sub-band in the first reporting frequency band that is the first sub-band, one precoding matrix is indicated; when is less than , for the sub-band in the first reporting frequency band that is the first sub-band, two precoding matrices are indicated. The first precoding matrix among the two precoding matrices indicated corresponds to the first RB, and for the sub - band in the first reporting frequency band that is the third sub - band, when is greater than or equal to , one precoding matrix is indicated; when is less than , for the sub - band in the first reporting frequency band that is the third sub - band, two precoding matrices are indicated. The first precoding matrix of the two indicated precoding matrices corresponds to the first RB of the third sub - band, and the second precoding matrix of the two indicated precoding matrices corresponds to the last RB of the third sub - band; mod represents the modulo operation.

[0813] As an example, when the value of the first parameter is 2, when is less than or equal to , for the sub - band in the first reporting frequency band that is the second sub - band, one precoding matrix is indicated; when is greater than , for the sub - band in the first reporting frequency band that is the second sub - band, two precoding matrices are indicated. The first precoding matrix of the two indicated precoding matrices corresponds to the first RB of the second sub - band, and the second precoding matrix of the two indicated precoding matrices corresponds to the last RB of the second sub - band; when is less than or equal to , for the sub - band in the first reporting frequency band that is the fourth sub - band, one precoding matrix is indicated; when is greater than , for the sub - band in the first reporting frequency band that is the fourth sub - band, two precoding matrices are indicated. The first precoding matrix of the two indicated precoding matrices corresponds to the first RB of the fourth sub - band, and the second precoding matrix of the two indicated precoding matrices corresponds to the last RB of the fourth sub - band; mod represents the modulo operation.

[0814] As an example, when the value of the first parameter is 1, for each sub - band in the first reporting frequency band, one precoding matrix is indicated.

[0815] As an example, it includes:

[0816] The first processor 1701 receives a second information block;

[0817] Wherein, the second information block indicates a reference time-domain resource set, the reference time-domain resource set includes one or more symbols configured as DL by higher-layer parameters, and in at least one symbol configured as DL in the reference time-domain resource set, at least one RB or at least one subcarrier belonging to the first frequency-domain resource set is used for uplink transmission.

[0818] Example 18

[0819] Embodiment 18 exemplifies a structural block diagram of a processing device in a second node according to an embodiment of the present application; as shown in the appendix Figure 18 shown. In the appendix Figure 18 In it, the processing device 1800 in the second node includes a second processor 1801.

[0820] As an embodiment, the second node is a base station.

[0821] As an embodiment, the second node is a base station device.

[0822] As an embodiment, the second node is a user equipment.

[0823] As an embodiment, the second node is a relay node device.

[0824] As an embodiment, the second processor 1801 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in Embodiment 4.

[0825] As an embodiment, the second processor 1801 includes at least one of {antenna 420, receiver 418, receive processor 470, multi-antenna receive processor 472, controller / processor 475, memory 476} in Embodiment 4.

[0826] The second processor 1801 sends a first information block, the first information block indicates a first frequency-domain resource set and a second frequency-domain resource set, the first frequency-domain resource set includes one or more RBs, and the second frequency-domain resource set includes one or more RBs; sends a first CSI reporting configuration, and the first CSI reporting configuration indicates a first reporting band and a first parameter.

[0827] In Embodiment 18, the first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first frequency-domain resource set; the first BWP includes a first frequency-domain resource pool and a second frequency-domain resource pool. The first frequency-domain resource pool consists of RBs in the first BWP that belong to the second frequency-domain resource set and are lower than the first frequency-domain resource set in the frequency domain. The second frequency-domain resource pool consists of RBs in the first BWP that belong to the second frequency-domain resource set and are higher than the first frequency-domain resource set in the frequency domain; the first frequency-domain resource pool includes multiple subbands, the second frequency-domain resource pool includes multiple subbands, and a subband includes one or more consecutive RBs; the first subband is the lowest subband in the first frequency-domain resource pool, the second subband is the highest subband in the first frequency-domain resource pool, the third subband is the lowest subband in the second frequency-domain resource pool, and the fourth subband is the highest subband in the second frequency-domain resource pool; for each subband in the first reporting frequency band that is the first subband, the second subband, the third subband, or the fourth subband, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this subband and the first parameter.

[0828] As an embodiment, is the start of the first frequency-domain resource pool, is the size of the first frequency-domain resource pool, is the start of the second frequency-domain resource pool, is the size of the second frequency-domain resource pool; the the the and the are non-negative integers respectively, and the the the and the depend on at least one of the first BWP, the first frequency-domain resource set, or the second frequency-domain resource set.

[0829] As an embodiment, a first given subband is any subband in the first reporting frequency band that is different from the first subband, the second subband, the third subband, and the fourth subband. The first given subband includes consecutive RBs, and the is a positive integer; when the value of the first parameter is 2, for the first given subband, two precoding matrices are indicated. The first precoding matrix among the two precoding matrices indicated for the first given subband corresponds to the first RBs of the first given subband, and the second precoding matrix among the two precoding matrices indicated for the first given subband corresponds to the last RB(s).

[0830] As an embodiment, the depends on the first CSI reporting configuration and the first BWP.

[0831] As an embodiment, the size of the first sub - band depends on the first frequency - domain resource pool, and the size of the second sub - band depends on the first frequency - domain resource pool; the size of the third sub - band depends on the second frequency - domain resource pool, and the size of the fourth sub - band depends on the second frequency - domain resource pool.

[0832] As an embodiment, when the value of the first parameter is 2, when greater than or equal to , for the sub - band in the first reporting band that is the first sub - band, one precoding matrix is indicated; when less than , for the sub - band in the first reporting band that is the first sub - band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first RB(s) of the first sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last RB(s) of the first sub - band; when greater than or equal to , for the sub - band in the first reporting band that is the third sub - band, one precoding matrix is indicated; when less than , for the sub - band in the first reporting band that is the third sub - band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first RB(s) of the third sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last RB(s) of the third sub - band; mod represents the modulo operation.

[0833] As an embodiment, when the value of the first parameter is 2, when less than or equal to , for the sub - band in the first reporting band that is the second sub - band, one precoding matrix is indicated; when greater than , for the sub - band in the first reporting band that is the second sub - band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first RB(s) of the second sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last RB; When less than or equal to , for the sub - band that is the fourth sub - band in the first reporting frequency band, one precoding matrix is indicated; when greater than , for the sub - band that is the fourth sub - band in the first reporting frequency band, two precoding matrices are indicated. The first precoding matrix among the two indicated precoding matrices corresponds to the first RB of the fourth sub - band, and the second precoding matrix among the two indicated precoding matrices corresponds to the last RB of the fourth sub - band; mod represents the modulo operation.

[0834] As an embodiment, when the value of the first parameter is 1, for each sub - band in the first reporting frequency band, one precoding matrix is indicated.

[0835] As an embodiment, it includes:

[0836] The second processor 1801 sends a second information block;

[0837] Wherein, the second information block indicates a reference time - domain resource set. The reference time - domain resource set includes one or more symbols configured as DL by a higher - layer parameter. In at least one symbol configured as DL in the reference time - domain resource set, at least one RB or at least one sub - carrier belonging to the first frequency - domain resource set is used for uplink transmission.

[0838] Those of ordinary skill in the art can understand that all or part of the steps in the above methods can be completed by a program instructing relevant hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disc, etc. Optionally, all or part of the steps of the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in a hardware form or in the form of a software function module. This application is not limited to any specific form of the 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 control airplanes, aircraft, small airplanes, mobile phones, tablet computers, laptops, vehicle-mounted communication devices, wireless sensors, network cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablet computers, and other wireless communication devices. The base station or system equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B), TRP (Transmitter Receiver Point), GNSS, relay satellites, satellite base stations, aerial base stations, RSU (Road Side Unit), drones, test equipment (such as a transceiver or signaling tester that simulates some functions of a base station), and other wireless communication devices.

[0839] As described above, the above are only the preferred embodiments of this application and are not used to limit the protection scope of this application. Any changes and modifications made based on the embodiments described in the specification, if similar partial or all technical effects can be obtained, should be regarded as obvious and fall within the protection scope of the present invention.

Claims

1. A method in a first node for wireless communication, characterized in that: include: Receive a first information block, where the first information block indicates a first frequency domain resource set and a second frequency domain resource set, where the first frequency domain resource set includes one or more RBs, and the second frequency domain resource set includes one or more RBs; receiving a first CSI reporting configuration, wherein the first CSI reporting configuration indicates a first reporting frequency band and a first parameter; The first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first frequency domain resource set; the first BWP includes a first frequency domain resource pool and a second frequency domain resource pool, the first frequency domain resource pool is composed of RBs in the first BWP that belong to the second frequency domain resource set and are lower than the first frequency domain resource set in the frequency domain, and the second frequency domain resource pool is composed of RBs in the first BWP that belong to the second frequency domain resource set and are higher than the first frequency domain resource set in the frequency domain; the first frequency domain resource pool includes multiple subbands, and the second frequency domain resource pool includes multiple subbands, and the subbands include one or more continuous RBs; the first subband is the lowest subband in the first frequency domain resource pool, the second subband is the highest subband in the first frequency domain resource pool, the third subband is the lowest subband in the second frequency domain resource pool, and the fourth subband is the highest subband in the second frequency domain resource pool; for each subband in the first reporting frequency band, which is the first subband, the second subband, the third subband or the fourth subband, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this subband and the first parameter.

2. The method according to claim 1, characterized in that is the start of the first frequency domain resource pool, is the size of the first frequency domain resource pool, is the start of the second frequency domain resource pool, is the size of the second frequency domain resource pool; Said Said and stated are non-negative integers, Said Said and stated Depends on at least one of the first BWP, the first frequency domain resource set or the second frequency domain resource set.

3. The method according to claim 1 or 2, characterized in that: The first given subband is any subband in the first reporting frequency band that is different from the first subband, the second subband, the third subband and the fourth subband. The first given subband includes consecutive RBs, the is a positive integer; when the value of the first parameter is 2, for the first given subband, two precoding matrices are indicated, and the first precoding matrix of the two precoding matrices indicated for the first given subband corresponds to the first given subband. RBs, the second precoding matrix of the two precoding matrices indicated for the first given subband corresponds to the back RBs.

4. The method according to claim 3, characterized in that Said Depends on the first CSI reporting configuration and the first BWP.

5. The method according to any one of claims 1 to 4, characterized in that: The size of the first subband depends on the first frequency domain resource pool, the size of the second subband depends on the first frequency domain resource pool; the size of the third subband depends on the second frequency domain resource pool, and the size of the fourth subband depends on the second frequency domain resource pool.

6. The method according to any one of claims 1 to 5, characterized in that: When the value of the first parameter is 2, when Greater than or equal to When , for a subband of the first reporting frequency band that is the first subband, a precoding matrix is ​​indicated; when Less than When the first reporting frequency band is a subband of the first subband, two precoding matrices are indicated, and a first precoding matrix of the two indicated precoding matrices corresponds to a pre- RBs, the second precoding matrix of the two indicated precoding matrices corresponds to the back RB; when Greater than or equal to When , for the subband of the first reporting frequency band that is the third subband, a precoding matrix is ​​indicated; when Less than When the first reporting frequency band is a subband of the third subband, two precoding matrices are indicated, and a first precoding matrix of the two indicated precoding matrices corresponds to a pre-coding matrix of the third subband. RBs, the second precoding matrix of the two indicated precoding matrices corresponds to the back RBs; mod means modular operation.

7. The method according to any one of claims 1 to 5, characterized in that: When the value of the first parameter is 2, when Less than or equal to When , for the subband of the first reporting frequency band that is the second subband, a precoding matrix is ​​indicated; when Greater than When the subband in the first reporting frequency band is the second subband, two precoding matrices are indicated, and a first precoding matrix of the two indicated precoding matrices corresponds to the front of the second subband RBs, the second precoding matrix of the two indicated precoding matrices corresponds to the second subband RB; when Less than or equal to When , for the subband of the first reporting frequency band that is the fourth subband, a precoding matrix is ​​indicated; when Greater than When the first reporting frequency band is a subband of the fourth subband, two precoding matrices are indicated, and a first precoding matrix of the two indicated precoding matrices corresponds to a pre-coding matrix of the fourth subband. RBs, the second precoding matrix of the two indicated precoding matrices corresponds to the back RBs; mod means modular operation.

8. The method according to any one of claims 1 to 7, characterized in that: When the value of the first parameter is 1, for each subband in the first reporting frequency band, one precoding matrix is ​​indicated.

9. The method according to any one of claims 1 to 8, characterized in that: include: receiving a second information block; The second information block indicates a reference time domain resource set, the reference time domain resource set includes one or more symbols configured as DL by higher layer parameters, and in at least one symbol of the reference time domain resource set configured as DL by the higher layer parameters, at least one RB or at least one subcarrier belonging to the first frequency domain resource set is used for uplink transmission.

10. A terminal, characterized in that: The terminal comprises: one or more processors and memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions. The one or more processors call the computer instructions to enable the terminal to execute the method according to any one of claims 1 to 9.

11. A method in a second node for wireless communication, characterized in that: include: Sending a first information block, where the first information block indicates a first frequency domain resource set and a second frequency domain resource set, where the first frequency domain resource set includes one or more RBs, and the second frequency domain resource set includes one or more RBs; Sending a first CSI reporting configuration, where the first CSI reporting configuration indicates a first reporting frequency band and a first parameter; The first CSI reporting configuration is associated with a first BWP, and the first BWP overlaps with the first frequency domain resource set; the first BWP includes a first frequency domain resource pool and a second frequency domain resource pool, the first frequency domain resource pool is composed of RBs in the first BWP that belong to the second frequency domain resource set and are lower than the first frequency domain resource set in the frequency domain, and the second frequency domain resource pool is composed of RBs in the first BWP that belong to the second frequency domain resource set and are higher than the first frequency domain resource set in the frequency domain; the first frequency domain resource pool includes multiple subbands, and the second frequency domain resource pool includes multiple subbands, and the subbands include one or more continuous RBs; the first subband is the lowest subband in the first frequency domain resource pool, the second subband is the highest subband in the first frequency domain resource pool, the third subband is the lowest subband in the second frequency domain resource pool, and the fourth subband is the highest subband in the second frequency domain resource pool; for each subband in the first reporting frequency band, which is the first subband, the second subband, the third subband or the fourth subband, one or two precoding matrices are indicated, and the number of indicated precoding matrices depends on the size of this subband and the first parameter.

12. The method according to claim 11, characterized in that is the start of the first frequency domain resource pool, is the size of the first frequency domain resource pool, is the start of the second frequency domain resource pool, is the size of the second frequency domain resource pool; Said Said and stated are non-negative integers, Said Said and stated Depends on at least one of the first BWP, the first frequency domain resource set or the second frequency domain resource set.

13. The method according to claim 11 or 12, characterized in that: The first given subband is any subband in the first reporting frequency band that is different from the first subband, the second subband, the third subband and the fourth subband. The first given subband includes consecutive RBs, the is a positive integer; when the value of the first parameter is 2, for the first given subband, two precoding matrices are indicated, and the first precoding matrix of the two precoding matrices indicated for the first given subband corresponds to the first given subband. RBs, the second precoding matrix of the two precoding matrices indicated for the first given subband corresponds to the back RBs.

14. The method according to claim 13, characterized in that Said Depends on the first CSI reporting configuration and the first BWP.

15. The method according to any one of claims 11 to 14, characterized in that The size of the first subband depends on the first frequency domain resource pool, the size of the second subband depends on the first frequency domain resource pool; the size of the third subband depends on the second frequency domain resource pool, and the size of the fourth subband depends on the second frequency domain resource pool.

16. The method according to any one of claims 11 to 15, characterized in that When the value of the first parameter is 2, when Greater than or equal to When , for a subband of the first reporting frequency band that is the first subband, a precoding matrix is ​​indicated; when Less than When the first reporting frequency band is a subband of the first subband, two precoding matrices are indicated, and a first precoding matrix of the two indicated precoding matrices corresponds to a pre- RBs, the second precoding matrix of the two indicated precoding matrices corresponds to the back RB; when Greater than or equal to When , for the subband of the first reporting frequency band that is the third subband, a precoding matrix is ​​indicated; when Less than When the first reporting frequency band is a subband of the third subband, two precoding matrices are indicated, and a first precoding matrix of the two indicated precoding matrices corresponds to a pre-coding matrix of the third subband. RBs, the second precoding matrix of the two indicated precoding matrices corresponds to the back RBs; mod means modular operation.

17. The method according to any one of claims 11 to 15, characterized in that When the value of the first parameter is 2, when Less than or equal to When , for the subband of the first reporting frequency band that is the second subband, a precoding matrix is ​​indicated; when Greater than When the subband in the first reporting frequency band is the second subband, two precoding matrices are indicated, and a first precoding matrix of the two indicated precoding matrices corresponds to the front of the second subband RBs, the second precoding matrix of the two indicated precoding matrices corresponds to the second subband RB; when Less than or equal to When , for the subband of the first reporting frequency band that is the fourth subband, a precoding matrix is ​​indicated; when Greater than When the first reporting frequency band is a subband of the fourth subband, two precoding matrices are indicated, and a first precoding matrix of the two indicated precoding matrices corresponds to a pre-coding matrix of the fourth subband. RBs, the second precoding matrix of the two indicated precoding matrices corresponds to the back RBs; mod means modular operation.

18. The method according to any one of claims 11 to 17, characterized in that When the value of the first parameter is 1, for each subband in the first reporting frequency band, one precoding matrix is ​​indicated.

19. The method according to any one of claims 11 to 18, characterized in that include: sending a second information block; The second information block indicates a reference time domain resource set, the reference time domain resource set includes one or more symbols configured as DL by higher layer parameters, and in at least one symbol of the reference time domain resource set configured as DL by the higher layer parameters, at least one RB or at least one subcarrier belonging to the first frequency domain resource set is used for uplink transmission.

20. A base station, characterized in that: The base station comprises: one or more processors and memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions, and the one or more processors call the computer instructions to enable the base station to perform the method according to any one of claims 11 to 19.

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