CN114390581A - Channel state information reporting method, device and terminal - Google Patents

Abstract

The application discloses a channel state information reporting method, a channel state information reporting device and a channel state information reporting terminal, and belongs to the technical field of wireless communication. The method comprises the following steps: selecting one or more target resources from each target resource group; the target resource group is determined according to the received resource indication information; determining a first Channel State Information (CSI) report according to each target resource; feeding back the first CSI report.

Description

Channel state information reporting method, device and terminal

Technical Field

The present application belongs to the technical field of wireless communication, and in particular, to a method, an apparatus, and a terminal for reporting channel state information.

Background

A communication scenario of multiple transmit receive points/multiple antenna panels (multi-TRP/multi-Panel) is proposed in a 5G New Radio (NR) communication system to enhance the reliability and throughput performance of transmission, for example, a terminal may receive the same data or different data from multiple TRPs.

For a transmission scenario with multiple TRPs/panels among multiple TRPs, if a group-based beam reporting scheme is adopted, although it can be ensured that transmission beams indicated by two CSI-RS Resource indicators (CRI)/Synchronization Signal block Resource indicators (SSB RI) in a Channel State Information (CSI) report can be received by a terminal at the same time, since the scheme does not limit whether the TRP sides can transmit at the same time, it may happen that two CRI/SSB RIs of a CSI report come from the same TRP, resulting in that multiple TRPs cannot transmit at the same time. If the non-group-based beam reporting scheme is adopted, the terminal selects n (n is 1/2/4) best beams and their corresponding Layer 1-reference signal received powers (L1-RSRP) to report in each CSI report according to the measurement results of multiple panels, but the non-group-based beam reporting scheme cannot guarantee that the reported beams can be received by the terminal at the same time because it is not limited whether the best beams need to correspond to different receiving panels.

Therefore, neither the group-based beam reporting scheme nor the non-group-based beam reporting scheme can achieve simultaneous transmission of multiple TRPs/panels among multiple TRPs.

Disclosure of Invention

The embodiment of the application provides a method, a device and a terminal for reporting channel state information, which can enhance the simultaneous transmission capability of multiple TRPs/panels among multiple TRPs.

In a first aspect, a method for reporting channel state information is provided, which is performed by a terminal, and includes: selecting one or more target resources from each target resource group; the target resource group is determined according to the received resource indication information; determining a first Channel State Information (CSI) report according to each target resource; feeding back the first CSI report.

In a second aspect, a method for reporting channel state information is provided, where the method is performed by a network side device, and the method includes: and sending resource indication information to a terminal, wherein the resource indication information is used for indicating a plurality of target resource groups to the terminal, so that the terminal reports the first CSI report based on the plurality of target resource groups, and each target resource group corresponds to different target sending receiving points TRP respectively.

In a third aspect, an apparatus for reporting channel state information is provided, the apparatus including: the selection module is used for selecting one or more target resources from each target resource group; the target resource group is determined according to the received resource indication information; a determining module, configured to determine a first CSI report according to each of the target resources; a feedback module to feedback the first CSI report.

In a fourth aspect, an apparatus for reporting channel state information is provided, the apparatus comprising: the terminal comprises a sending module, a receiving module and a processing module, wherein the sending module is used for sending resource indication information to the terminal, the resource indication information is used for indicating a plurality of target resource groups to the terminal, so that the terminal reports a first CSI report based on the plurality of target resource groups, and each target resource group corresponds to different target sending receiving points (TRPs) respectively; a transceiver.

In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect.

In a sixth aspect, a network-side device is provided, which comprises a processor, a memory, and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method according to the second aspect.

In a seventh aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the steps of the method according to the first aspect or implement the steps of the method according to the second aspect.

In an eighth aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a network-side device program or instruction, implement the method according to the first aspect, or implement the method according to the second aspect.

In a ninth aspect, there is provided a computer program product comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect or the program or instructions, when executed by the processor, implementing the steps of the method according to the second aspect.

In the embodiment of the application, the terminal can determine the target resource groups according to the resource indication information, and then select one or more target resources from each target resource group to realize the feedback of the CSI report, so that the target resources in the CSI report reported by the terminal to the target TRP correspond to CSI-RS resources of the target TRP and the like, and the simultaneous transmission capability of multiple TRPs/panels among multiple TRPs is effectively enhanced.

Drawings

Fig. 1 is a block diagram of a wireless communication system provided by an exemplary embodiment of the present application.

Fig. 2 is a flowchart illustrating a reporting method of channel state information according to an exemplary embodiment of the present application.

Fig. 3 is a schematic diagram illustrating CSI report feedback principles provided in an exemplary embodiment of the present application.

Fig. 4 is a flowchart illustrating a reporting method of channel state information according to another exemplary embodiment of the present application.

Fig. 5a and 5b are a schematic diagram and a timing diagram of a CSI report feedback principle provided in an exemplary embodiment of the present application, respectively.

Fig. 6a and fig. 6b are a schematic diagram and a timing diagram, respectively, of a CSI report feedback principle provided in another exemplary embodiment of the present application.

Fig. 7a is a timing diagram of CSI reporting feedback provided by yet another exemplary embodiment of the present application.

Fig. 7b is a timing diagram of CSI reporting feedback provided by yet another exemplary embodiment of the present application.

Fig. 8 is a flowchart illustrating a reporting method of channel state information according to another exemplary embodiment of the present application.

Fig. 9a, 9b, 9c, and 9d are schematic diagrams of a report delay window according to an exemplary embodiment of the present application.

Fig. 10 is a flowchart illustrating a reporting method of channel state information according to another exemplary embodiment of the present application.

Fig. 11a, fig. 11b, and fig. 11c are timing diagrams of CSI report feedback under different CSI processing windows according to an exemplary embodiment of the present application.

Fig. 12 is a flowchart illustrating a reporting method of channel state information according to another exemplary embodiment of the present application.

Fig. 13a and fig. 13b are respectively block diagrams of a reporting apparatus for channel state information according to an exemplary embodiment of the present application.

Fig. 14a and 14b are respectively block diagrams of a reporting apparatus for channel state information according to another exemplary embodiment of the present application.

Fig. 15 is a block diagram of a communication device provided in an exemplary embodiment of the present application.

Fig. 16 is a block diagram of a terminal provided in an exemplary embodiment of the present application.

Fig. 17 is a block diagram of a network device according to an exemplary embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation)^thGeneration, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a TRP, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but the specific type of the Base Station is not limited.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

As shown in fig. 2, a flowchart of a method 200 for reporting channel state information according to an exemplary embodiment of the present application is provided, and the method 200 may be applied to, but is not limited to, a terminal, and may be specifically executed by hardware and/or software installed in the terminal. The method 200 includes at least the following steps.

S210, selecting one or more target resources from each target resource group.

The target resource may include at least a CSI-RS resource and/or an SSB resource, and the like. The CSI-RS resource comprises at least one of a periodic CSI-RS resource, an aperiodic CSI-RS resource and a semi-persistent CSI-RS resource, and the SSB resource is a periodic resource.

In one implementation, the time-domain characteristics of each target resource group may be any one of the following (1) - (5).

(1) The CSI-RS resources or SSB resources of each group are periodic.

(2) The CSI-RS resources of one group are configured as periodic or SS/PBCH block resources, and the CSI-RS resources of the other group are configured as semi-persistent.

(3) The CSI-RS resources of one group are configured as periodic or SS/PBCH block resources, and the CSI-RS resources of the other group are configured as aperiodic.

(4) Each set of CSI-RS resources is configured to be semi-persistent.

(5) The CSI-RS resources of one group are configured to be semi-persistent, and the CSI-RS resources of the other group are configured to be aperiodic.

And each target resource group corresponds to different target TRPs respectively, and the target TRPs are TRPs for reporting a CSI report by the terminal. In this embodiment, by corresponding the target resource group to the target TRP, it can be ensured that a beam corresponding to a target resource (e.g., CRI, SSB RI) fed back in the CSI report can be simultaneously transmitted by a plurality of target TRPs, thereby improving the simultaneous transmission performance among the plurality of TRPs.

It can be understood that in a Multi-Downlink Control Information (Multi-DCI) scenario, the terminal may determine a target resource group associated with each target TRP according to a Control resource set index (coresetpoilinadex). In the single-DCI (S-DCI) scenario, since there is no coresetpoilinadex definition, the terminal only knows that the network-side device configures multiple target resource groups, and does not know the correspondence between the target resource groups and the target TRPs, but the terminal still can receive multiple CSI-RSs simultaneously in consideration of the fact that the terminal is equipped with multiple receiving panels.

Further, the set of target resources may be determined from the received resource indication information. In one implementation manner, the network side device may configure N target resources, and indicate M groups of target resources to the terminal through the resource indication information, where N is greater than or equal to M. Each target resource group may include a preset number of target resources, where the preset number is an upward rounding of N/M, or the preset number is a downward rounding of N/M, where N is a total number of target resources configured by a network side device, and M is a total number of the target resource groups.

In this embodiment, the Resource indication Information may be transmitted through Radio Resource Control (RRC), Medium Access Control-Control Element (MAC CE), or Downlink Control Information (DCI).

S220, determining a first CSI report according to each target resource.

The first CSI report may include at least one of a CSI-RS Resource Indicator (CRI), an SSB Resource Indicator (SSB RI), a layer 1-reference signal received power (L1-RSRP), a layer 1-signal plus interference noise ratio (L1-SINR), a Precoding Matrix Rank Indicator (PMI), a Channel Quality Indicator (CQI), and a Rank Indicator (RI). In addition, it should be understood that the beam report mentioned in the following embodiments is a format of CSI report, and similar to the CSI report, the beam report may also include, but is not limited to, CRI, SSBRI, L1-RSRP, L1-SINR, etc.

S230, feeding back the first CSI report.

Wherein if the terminal has O reception panels, the terminal can simultaneously receive O target reference signals. Accordingly, in the case of the first CSI report determined according to each of the target resources, the first CSI report may include a plurality of target resources, that is, the terminal may feed back a plurality of target resources, such as CRI/SSB RI, and one target resource corresponds to one target resource group, so as to ensure that the terminal can receive a plurality of CSI-RS reference signals or/and SSB synchronization signals, and the like at the same time.

Exemplarily, as shown in fig. 3, a schematic diagram of feeding back CSI reports to two (K ═ 2) target TRPs for a terminal is shown, where two CSI report settings are configured or one CSI report setting is associated with two CSI reports. As shown in fig. 3, it is assumed that the network-side device configures 4 target resources in total, such as CSI-RS resources, that is, N is 4, and divides the 4 CSI-RS resources into two target resource groups, that is, M is 2. In a Multi-DCI scenario, a terminal may know that a target resource group 1 associated with coresetpoilinadex ═ 0(TRP1) includes CSI-RS #1 and CSI-RS #2, and a target resource group 2 associated with coresetpoilinadex ═ 1(TRP2) includes CSI-RS #3 and CSI-RS # 4; under the scene of S-DCI, without the definition of CORESETPoolidex, the terminal only knows that the network side equipment configures two target resource groups, and does not know which target TRP each target resource group is specifically associated with. But since the terminal is equipped with two reception panels, i.e., O2, the terminal can simultaneously receive two CSI-RSs.

In mode one (i.e., the aforementioned predetermined mode), two CSI report settings are configured and each CSI report setting is configured to not enable group-based beam reporting (group _ assisted beam reporting), where each CSI report setting is associated with only one target resource group, and the target resources in the target resource group belong to a certain target TRP. After each CSI report is initiated, the terminal may select 1 or 2 CRIs from the target resource group associated therewith to determine a CSI report (i.e., a first CSI report) and report the CSI report to a target TRP corresponding to the CSI report. Since the CRI reported by the terminal to a certain target TRP all corresponds to a certain CSI-RS resource of the TRP, the CRI reported to different target TRPs meets the condition of simultaneous transmission.

In mode two, one or two CSI report setting are configured and each CSI report setting is configured to enable group-based beam reporting (enabled), wherein each CSI report setting is associated with a plurality of target resource groups. After each CSI report is initiated, the terminal selects 1 CRI from the target resource group 1 and the target resource group 2, respectively, to determine a CSI report (i.e., a first CSI report), and reports the CSI report to a target TRP corresponding to the CSI report. Since each beam in the beam pair selected by the terminal is from different target TRPs and grouped beam reporting is enabled, the beam pair can be simultaneously transmitted by two target TRPs and simultaneously received by the UE configured with multiple panels.

In the method 200 provided in this embodiment, the terminal determines the target resource groups according to the resource indication information, and then selects one or more target resources from each target resource group to implement feedback of the CSI report, so that the present embodiment enables the target resources in the CSI report reported by the terminal to the target TRP to correspond to CSI-RS resources of the target TRP and the like in a resource configuration manner, thereby effectively enhancing simultaneous transmission capabilities of multiple TRPs/panels among multiple TRPs, such as simultaneous reception capabilities of the terminal, simultaneous transmission capabilities of multiple TRPs, and the like.

As shown in fig. 4, a flowchart of a method 400 for reporting channel state information according to an exemplary embodiment of the present application is provided, where the method 400 may be applied to, but not limited to, a terminal, and may be specifically executed by hardware and/or software installed in the terminal. The method 400 includes at least the following steps.

S410, one or more target resources are selected from each target resource group.

In addition to the implementation process in S410 referring to the detailed description in S210, in this embodiment, when the predetermined pattern is satisfied, the implementation process of selecting one or more target resources from each target resource group in S410 may include any one of the following (1) to (3).

(1) And selecting one or more target resources from each target resource group in a one-to-one pairing mode based on the CRI in the second CSI report.

Wherein the second CSI report is also determined based on the target resource group, similar to the first CSI report, and a feedback time of the second CSI report is earlier than a feedback time of the first CSI report. The one-to-one pairing mode comprises corresponding position pairing and cross position pairing.

(2) And selecting one or more target resources from each target resource group in a one-to-many pairing mode based on the CRI in the second CSI report.

(3) And selecting one or more target resources from each target resource group according to a complete pairing mode based on the CRI in the second CSI report.

Wherein the predetermined mode (i.e., mode one as described in the foregoing method 200) comprises a combination of: configuring one or more CSI reporting configurations; configuring one or more uplink transmission resources (such as PUCCH/PUSCH resources) for each CSI report configuration (CSI report setting); each of the CSI reporting configurations is a non-group-based beam reporting (i.e., groupbasedbeamdreporting disabled) enabled; and associating one target resource group with each CSI report configuration.

S420, determining a first CSI report according to each of the target resources.

In addition to the implementation process in S420 referring to the detailed description in S220, in a possible implementation manner, when the first CSI report includes a target beam that is selected by the terminal and needs to be reported, the first CSI report needs to satisfy at least one of the following conditions (1) - (3).

(1) At least one CRI combination exists in CRI combinations obtained by combining CRIs in the first CSI report and the second CSI report which are mutually associated, and the CRI combinations are simultaneously received by the terminal.

Wherein the second CSI report is determined based on the target resource set, similar to the first CSI report, and a feedback time of the second CSI report is earlier than a feedback time of the first CSI report. In one implementation, the correlating the CSI reports may include: and when the network side equipment configures the CSI report, the same ID is set for association.

In this embodiment, when the CRI in the first CSI report and the second CSI report are combined, a one-to-one pairing manner, a one-to-many pairing manner, or a complete pairing manner as described in S410 may be adopted, which is not limited in this embodiment.

(2) The first CSI report is a basic beam report.

(3) When the first CSI report is a non-basic beam report, the CRI in the first CSI report and the CRI in a predetermined basic beam report are simultaneously received by the terminal, where the predetermined basic beam may be set according to an actual requirement, for example, when the first CSI report is a non-basic beam report, the predetermined basic beam may be the second CSI report.

In addition, in the implementation manners in the foregoing (1) - (3), the target beam may be determined according to at least one of the following (1) and (2).

(1) A beam in the second CSI report.

(2) And the preset uplink transmission or downlink transmission corresponds to the wave beam. The uplink transmission may include a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH), and the downlink transmission may include a Physical Downlink Shared Channel (PDSCH) or a Physical Downlink Control Channel (PDCCH).

In another possible implementation manner, in a case that the terminal completes reporting a second CSI report and a plurality of CRIs included in the second CSI report are simultaneously received, a first CSI report associated with the second CSI report satisfies at least one of the following conditions (1) - (3).

(1) The CRI included in the first CSI report is at least partially identical to the CRI included in the second CSI report.

(2) In the absence of the same CRI in the first CSI report and the second CSI report, a specified CRI in the first CSI report and a specified CRI in the second CSI report are received by the terminal at the same time.

(3) The plurality of CRIs included in the first CSI report are received by the terminal at the same time.

Based on the foregoing implementation, in a case where multiple CRIs included in the first CSI report are received simultaneously, or in a case where a combination of CRIs that are received simultaneously exists when the CRI in the first CSI report is combined with the CRI in the second CSI report, the specified content included in the first CSI report is determined according to a predetermined transmission scheme assumption, where the specified content is one or more of CRI, PMI, RI, and CQI in the first CSI report.

Wherein the predetermined transmission scheme hypothesis comprises non-coherent joint transmission (NCJT) or dynamic transmission point selection (DPS).

In this embodiment, the determining process of determining the designated content included in the first CSI report according to a predetermined transmission scheme hypothesis includes: determining target content according to first specified content in the first CSI report and/or first specified content in the second CSI report, wherein the first specified content is one or more of CRI, PMI, RI and CQI; replacing the first specified content in the first CSI report with the target content.

For example, assuming that the predetermined transmission scheme is assumed to be NCJT, in this case, the first CSI report includes a first specified content CRI of a1 and a CQI of B1, and the second CSI report associated with the first CSI report includes a first specified content CRI of a2 and a CQI of B2, then the target content joint CQI calculated according to a1 and a2 is B3, then B1 in the first CSI report may be replaced by B3, and the replaced first CSI report is fed back.

In the present embodiment, the predetermined transmission scheme assumption may be indicated by any one of the following manners (1) to (3).

(1) The first CSI report.

(2) And (5) protocol agreement.

(3) And (4) high-level configuration.

S430, feeding back the first CSI report.

Besides referring to the foregoing detailed description in S230, in the embodiment, the implementation process in S430 may include: reporting the layer 1-reference signal received power L1-RSRP under the condition of performing beam pairing according to the one-to-one pairing mode, the one-to-many pairing mode or the complete pairing mode, and reporting a second L1-RSRP in a differential mode. Wherein the first L1-RSRP is the maximum value of a plurality of L1-RSRPs corresponding to the CRI which is successfully paired, and the second L1-RSRP is the other LI-RSRPs except the first LI-RSRP in the plurality of LI-RSRPs.

It should be noted that in the foregoing method embodiment, in a case where a target beam included in the first CSI report does not satisfy being simultaneously received, or in a case where there is no simultaneously received CRI combination when combining the CRI in the first CSI report and the CRI in the second CSI report, data carried by a predetermined beam is received.

The predetermined beam may be set according to a requirement, for example, a beam with a high L1-RSRP value may be selected as the predetermined beam. In one implementation, for a case that a beam reported to multiple TRPs does not satisfy simultaneous reception by a terminal, a terminal behavior may be defined as follows: for the partial beams which can be received at the same time, the data carried by the partial beams can be normally received, and for the partial beams which can not be received at the same time, the terminal can receive the data carried by the preset beams.

Based on the foregoing description of the method 400, the implementation of the method 400 is further described below with reference to various examples.

Example 1

Assuming that in the first mode (i.e. the aforementioned predetermined mode), the total number of target resources (e.g. CSI-RS resources) configured on the network side is 6, and the target resources are divided into two target resource groups, each target resource group includes 3 CSI-RS resources, and when a CSI report is initiated, the terminal can select 2 CRIs for reporting.

Referring to table 1, fig. 5a, and fig. 5b in combination (the dotted arrow indicates the initiation of CSI reporting, and the solid arrow indicates the CSI-RS signal), the terminal moves from left to right between time t1 to t 2. At time t1, when Report #1 is initiated, the terminal side selects two CRIs from all CSI-RS resources (CSI-RS #1 to CSI-RS #3) in the CSI resource setting associated with Report #1 according to the measurement result, and reports the CRI to TRP1, where CRI #1 and CRI #2 are selected as shown in the first row in table 1. When the TRP1 receives the CSI report, the remaining one of the two CRI may be selected as the transmission beam for PDSCH transmission according to certain rules (e.g., selection according to L1-RSRP value).

TABLE 1

At time t2, when Report #2 is initiated, the terminal side selects two CRIs from all CSI-RS resources (CSI-RS # 4-6) in CSI resource setting associated with Report #2 according to the measurement result to Report to TRP2, and in the process of selecting beams for the two associated CSI reports, the terminal needs to select beams meeting the following conditions:

at least one CRI combination (e.g., a one-to-one pairing manner, a one-to-many pairing manner, and a full pairing manner) selected from the associated CSI report1 (e.g., the aforementioned second CSI report) and the associated CSI report2 (e.g., the aforementioned first CSI report) can be received by the terminal at the same time.

With reference to table 1, it is assumed that the terminal determines the reporting beams CRI #1 and CRI #2 according to the above conditions after the Report #1 is initiated. When Report #2 is initiated, the terminal selects two CRIs which are combined with CRI #1 and CRI #2 from CRI # 4-6 according to the beam content in Report #1, and a plurality of combinations exist to meet the requirement of two CRIs received simultaneously. With reference to the content in table 1, the specific relationship corresponding to the beam may be as follows:

(1) when the corresponding location pairing mode in the one-to-one pairing mode is adopted, the reported beams are (CRI #5, CRI #6) or (CRI #5, CRI # 4).

(2) When the one-to-one cross location pairing mode is adopted, the reported beams are (CRI #6, CRI #5) or (CRI #4, CRI # 5).

(3) When a one-to-many pairing mode is adopted, for the CRI #2 in the report1, two of the CRI #6, CRI #5 and CRI #4 can be selected by the report2 according to a certain rule and reported, for example, a CRI with a higher L1-RSRP is selected; for CRI #1 in report1, report2 only reports CRI # 5.

(4) When complete matching is adopted, that is, when simultaneous transmission can be realized in any combination, there is no beam that satisfies the aforementioned reporting condition.

It should be noted that in the foregoing manner, if there are a plurality of beam combinations satisfying the correspondence, the selection may be performed again according to a certain rule, such as selecting a combination with a high L1-RSRP.

Example 2

Assuming that in mode two (see the corresponding description in method 200), in fig. 6a, assuming that the link between TRP1 and TRP2 is an ideal backhaul link, the beam content of each CSI report can be received by the terminal at the same time and come from different TRPs, and the TRPs can share the beam reports through the ideal backhaul link, so that it can realize the simultaneous transmission of multiple TRPs. However, in a non-ideal backhaul line between the TRPs, under the condition that beam information cannot be shared between the TRPs in time, beam reporting is generally performed to two TRPs respectively. This example 2 can improve the probability that the beams respectively reported to two TRPs satisfy simultaneous reception, thereby enhancing the simultaneous transmission capability of multiple TRPs in a non-ideal backhaul line.

In fig. 6a, the dashed arrows represent the initiation of CSI reporting and the solid arrows represent CSI-RS signals.

TABLE 2

With reference to fig. 6a, fig. 6b, and table 2, when Report #1 is initiated at time t1, the terminal selects one CRI from all CSI-RS resources associated with each CSI resource setting according to the measurement result, and forms two beam pairs that can be received by the terminal at the same time, and then the terminal selects (CRI #1 and CRI #3) according to the measurement result of each beam pair group to Report to TRP1, as shown in the first row in table 2. When the TRP1 receives a CSI report, the TRP1 may determine that the CSI-RS resource indication belonging to itself is CRI #1 and a transmission beam according to the CSI-RS resource group to which the CRI belongs.

At time t2, when Report #2 is initiated, the terminal measures and counts 4 beam pairs that can be received by the terminal at the same time, and then the terminal needs to select a beam pair (CRI # x, CRI # y) that at least satisfies one of the following conditions:

the (CRI # x, CRI # y) and (CRI #1, CRI #3) are combined, and at least one of (CRI # x, CRI #1), (CRI # x, CRI #3), (CRI #1, CRI # y), (CRI #3, CRI # y) in the 4 combinations can be received by the terminal at the same time.

Through the selection:

(1) if there is no beam pair satisfying the condition, the terminal selects a pair of TRPs 2 to report from all beam pairs satisfying simultaneous reception by the terminal (i.e. 4 pairs of beams in table 2) according to the measurement result of the beam pair, but in this case, it cannot be guaranteed that the transmission beams of multiple TRPs can be simultaneously received by the terminal. In this regard, for the partial beams that can be received at the same time, the terminal normally receives the data carried by the partial beams, and for the partial beams that cannot be received at the same time, the terminal may select to receive the data carried by only one of the beams according to a certain rule, for example, select the value of L1-RSRP to be high.

(2) If there is only one beam pair satisfying the condition, the terminal reports it.

(3) If there are multiple pairs of beams that satisfy the condition, the terminal may select again according to a certain rule, for example, according to the measurement result (e.g., L1-RSRP) or the number of combinations that satisfy simultaneous reception, select a pair of beams to report. In line 2 of table 2, the terminal finally selects (CRI #2, CRI #4) to report. After TRP2 receives report2, TRP2 can know that the CSI-RS resource belonging to itself is indicated as CRI #4 according to the resource configuration, and since (CRI #1 and CRI #4) are shown to be received by the terminal at the same time in the measurement of the current report, TRP1 and TRP2 can realize the simultaneous transmission at the present moment. However, if report2 selects (CRI #2, CRI #3) to report to TRP2, CRI #1 and CRI #3 corresponding to TRP1 and TRP2, respectively, may not be received by the terminal at the same time currently.

It should be noted that the operation mode of the subsequent Report is the same as Report #2, and the following operation is performed according to the same beam selection condition and reporting mechanism, which is not described herein again.

Example 3

The CSI-RS resource, resource grouping, and report configuration method in example 3 may refer to the description (mode one) in example 2.

Referring to fig. 7a, in a multi-DCI scenario, a network side device may agree in advance with a terminal, and define a TRP associated with coresetpoilinadex ═ 0 as a basic TRP, and report a beam to the basic TRP as a basic beam report, that is, in this example, TRP1 is the basic TRP, that is, the beam report to TRP1 is the basic beam report. Therefore, referring to table 3, at time t1, (CRI #1, CRI #3) reported by Report #1 is a basic beam, Report #2 and Report #3 reported to TRP2 initiated at times t2 and t3 are reported by non-basic beams, and CRI in the Report content needs to be always combined with CRI (CRI #1, CRI #3)) reported by the basic beam, and at least one CRI combination exists and can be received by the terminal at the same time.

TABLE 3

In addition, all beam correspondences in reporting can refer to the description in example 2, while in this example 3, beam selection and reporting are performed in a full-pairing manner as a corresponding condition. When a plurality of beam pairs exist, which can be received simultaneously with the CRI in the basic beam reporting, the terminal selects two CRIs again according to a certain rule and reports the CRIs, for example, the CRI with the highest L1-RSRP is selected.

At time t4, Report #4 reported to TRP1 is initiated, and since Report #4 is a basic beam, beam selection is not limited, and Report #5 initiated at time t5 needs to select a beam according to the beam Report content of Report # 4.

Example 4

The CSI-RS resource, resource grouping and report configuration method in this example 4 is as described in example (mode two) of the method 200, and is not described herein again to avoid repetition.

As with example 2, this example 4 is primarily directed to the case of non-ideal backhaul lines between TRPs. In the case that beam information cannot be shared between TRPs in time, beam reporting is usually performed to two TRPs separately. This example 4 can improve the probability that the beams respectively reported to two TRPs satisfy simultaneous reception, thereby enhancing the simultaneous transmission capability of multiple TRPs in a non-ideal backhaul line.

TABLE 4

In a multi-DCI scenario, a network side device and a terminal agree in advance, and define a TRP associated with coresetpoilinadex ═ 0 as a basic TRP, and report a beam to the basic TRP as a basic beam report, that is, in this example, the TRP1 is the basic TRP, and the beam report to the TRP1 is the basic beam report. As shown in fig. 7b, at time t1, (CRI #1, CRI #3) reported by Report #1 is a basic beam pair, and at times t2 and t3, Report #2 and Report #3 initiated to Report TRP2 are reported by non-basic beams, and the CRI in the Report content needs to be always the same as the CRI in the basic beam Report, that is, (CRI #1, CRI #3) can be received simultaneously. When there are multiple beam pairs that can be received simultaneously with the CRI in the basic beam reporting, the terminal selects again according to the measurement result, for example, L1-RSRP, and selects a pair to report, as shown in line 2 in table 4. At time t4, Report #4 reported to TRP1 is initiated, and since Report #4 is a basic beam, beam selection is not limited, and Report #5 initiated at time t5 needs to select a beam according to the beam Report content of Report # 4.

Example 5

The CSI-RS resource, resource grouping and report configuration method in this example 5 is as described in example (mode two) of the method 200, and is not repeated here to avoid repetition.

As with example 2, this example 5 is for the case of a non-ideal backhaul line between TRPs. In the case that beam information cannot be shared between TRPs in time, beam reporting is usually performed to two TRPs separately. This example 5 can improve the probability that the beams reported to two TRPs respectively satisfy simultaneous reception, thereby enhancing the simultaneous transmission capability of multiple TRPs in a non-ideal backhaul line.

TABLE 5

In the scenario of multi-DCI TRP, as shown in table 5, in the case that TRP1 performs CSI reporting beam pair (CRI #1, CRI #3), and TRP1 may determine that the beam belonging to itself is CRI #1 according to the resource grouping, CSI report2 associated therewith at least needs to satisfy the following condition:

(1) the portion of CSI report2 associated to TRP1 is the same as in CSI report1, as shown in the third row in table 5. Since the beam pair in CSI report2 is simultaneously receivable by the UE and contains CRI #1, the part of CSI report2 associated to TRP2 can be transmitted simultaneously with the part of CSI report1 associated to TRP 1.

(2) The part of CSI report2 associated to TRP1 is different from that of CSI report1, and the part of CSI report2 associated to TRP2 and the part of CSI report1 associated to TRP1 can be received at the same time, as shown in the fourth row of table 5. The terminal selects (CRI #2, CRI #4) from two pairs of beams satisfying simultaneous reception according to the measurement result for reporting, and as the CSI report2 does not contain the CRI #1, in order to ensure simultaneous transmission, the part of the CSI report2 associated with the TRP2 and the CRI #1 are required to be simultaneously received, and the (CRI #1, CRI #4) can be simultaneously received by the terminal.

In the method 400 provided in this embodiment, by providing different beam selection and reporting manners, the probability that beams respectively reported to multiple TRPs satisfy simultaneous reception is effectively improved, so as to enhance the simultaneous transmission capability of multiple TRPs in a non-ideal backhaul.

As shown in fig. 8, a flowchart of a method 800 for reporting channel state information according to an exemplary embodiment of the present application is provided, and the method 800 may be applied to, but is not limited to, a terminal, and may be specifically executed by hardware and/or software installed in the terminal. The method 800 includes at least the following steps.

S810, one or more target resources are selected from each target resource group.

For the implementation process of S810, reference may be made to the related description in the foregoing method embodiment 200-400, and details are not repeated herein for avoiding repetition.

S820, a preconfigured report delay window is opened.

Wherein the reporting delay window may be opened upon initiation of any CSI report. In this embodiment, a plurality of CSI reports located within the same reporting delay window (delay window) are the same, or the CRI and/or the SSB RI of a plurality of CSI reports located within the same reporting delay window are the same. For example, the content of all CSI reports within a window is the same or the beam set or CSI obtained based on the same N (N < ═ N) set CSI or SS/PBCH resources at different transmission times (i.e. CRI/SSBRI are the same, but CSI parameters such as PMI, CQI, etc. may be different).

In one implementation, the reporting delay window may be an absolute time window (e.g., periodic/semi-persistent CSI report) or a relative time window (e.g., aperiodic CSI report). In addition, the report delay window may be determined by any one of the following manners (1) to (5).

(1) And the terminal and the network side equipment negotiate and determine.

(2) And (4) implicit acquisition.

(3) And RRC indication.

(4) MAC CE indication.

(5) And DCI indication.

It can be understood that the reporting delay window may be indicated by RRC, DCI, MAC CE, or may be indicated simultaneously with signaling for triggering reporting, for example, in a case that the reporting delay window is indicated by the DCI, the reporting delay window is indicated by a CSI terminal request field in the DCI.

For example, assuming that CSI reports are the same and the CSI report configuration manner described in the foregoing mode two is adopted, please refer to fig. 9a and fig. 9b, and as the time domain resource for periodic CSI reporting is RRC configured, is known in advance and can be maintained for a long time, the reporting delay window based on one periodic CSI report setting and two periodic CSI report setting associated with two CSI reports is an absolute window. The length of a delay window associated with two periodic CSI report settings is set as a time interval between two CSI reports, that is, a timeoffset, and the length of the delay window associated with two periodic CSI report settings is the time interval between two CSI report settings.

S830, determining a first CSI report according to each of the target resources.

In addition to the implementation process of S830 referring to the related description in the foregoing method embodiments, in an implementation manner, the implementation process of determining the first CSI report according to each target resource in S830 may include at least: determining the first CSI report according to each target resource and the second CSI report; the determining process of the second CSI report may refer to the description of the first CSI report, and is not repeated herein, where the feedback time of the second CSI report is earlier than that of the first CSI report, and the feedback time of the second CSI report and the feedback time of the first CSI report are both located in the report delay window.

For example, assuming that CRI #1 and CRI #2 in the second CSI report can be simultaneously received, CRI # x and CRI # y included in the first CSI report determined based on the target resource, and a combination of CRI #1 and CRI #2 in the second CSI report can be simultaneously received, at least in part.

Illustratively, referring again to fig. 9a and 9b, since all CSI-RSs are received and measured before CSI Report, in this case, the CSI Report contents in the same Report delay window are the same, such as Report #1 and Report #2 in fig. 9a and 9b, but the CSI Report beyond the Report delay window no longer needs to satisfy the condition of the same CSI Report contents, such as Report #2 and Report #3 in fig. 9a and 9 b.

Since the groupBasedBeamReporting is enabled, the terminal reports a pair of beams that can be received simultaneously, and the contents of the two CSI reports are the same, the TRP1 and TRP2 can perform simultaneous transmission according to the received beams. It should be noted that the active beam pair will work until the next two reports within the same report delay window occur or the backhaul information between TRPs arrives.

Since the semi-persistent CSI reporting is based on the periodic CSI reporting activated by the MAC CE, the time domain characteristics thereof can still be coordinated in advance, and thus the corresponding reporting delay window is an absolute window.

In addition, as shown in fig. 9c, a diagram of a deferral window associating aperiodic CSI report setting reported by two CSI is shown. Since the aperiodic CSI report is triggered by DCI, the network side device cannot fix the trigger time of the aperiodic CSI report, so the report delay window of the aperiodic CSI report is a relative window, the starting point of the window is the aperiodic CSI report trigger time, and the length is determined by the network configuration or the terminal capability. As in fig. 9a and 9b, since all CSI-RSs have been received and measured before CSI reporting, the CSI report content within the same delay window is the same in this case.

Assuming that the network side device configures 2 CSI-RS resources (i.e., target resources), the 2 CSI-RS resources are divided into two groups, and each group has one CSI-RS resource. Then, see fig. 9 d:

at the time t3, Report #1 is initiated, the terminal reports to the TRP1 according to the measured result, and the CSI-RS resource indication in the CSI Report content is (CRI #1, CRI # 2).

At time t4, the terminal receives CSI-RS # 1.

At the time t5, Report #2 is initiated, the terminal reports to the TRP1 according to the measured result, and since there are only two CSI-RS resources, the CSI-RS resource indication in the CSI Report content is still (CRI #1, CRI # 2).

Although two CSI reports exist in one report delay window and the fed back CRI is the same, in the current situation, the contents of the rest CSI reports such as CQI, RI and PMI in the two CSI reports may be different because CSI-RS #1 is retransmitted. Therefore, if a plurality of CSI reports based on the same CSI-RS resource at different time exist in the report delay window, it is only necessary to ensure that the CRI/SSBRI in the CSI report content is the same. The CRI/SSBRI is the same, which indicates that the selected beams of the two reports are the same, and since the beam pair of each CSI report can be received by the UE at the same time in the group-based beam report, the TRP1 and TRP2 can achieve simultaneous transmission according to the received beams.

S840, feeding back the first CSI report.

The implementation process of S840 may refer to the descriptions in S230 and S430, and is not described herein again to avoid repetition.

In the method 800 provided in this embodiment, based on the target resource group, the beam is further selected and reported based on the report delay window, so that the simultaneous transmission capability of multiple TRPs/panels among multiple TRPs can be further enhanced.

As shown in fig. 10, a flowchart of a method 1000 for reporting channel state information according to an exemplary embodiment of the present application is provided, where the method 1000 may be applied to, but is not limited to, a terminal, and may be specifically executed by hardware and/or software installed in the terminal. The method 1000 includes at least the following steps.

S1010, one or more target resources are selected from each target resource group.

S1020, determining a first CSI report according to each of the target resources.

The implementation processes in S1010 and S1020 may refer to the related descriptions in each method embodiment, and are not described herein again to avoid repetition.

S1030, feeding back the first CSI report.

In addition to the implementation process of S1030 by referring to the relevant description in each method embodiment, in an implementation manner, the feeding back the first CSI report includes: and under the condition that the terminal reports the time required for jointly processing the multiple CSI reports and the first CSI report is associated with other CSI reports, processing the first CSI report according to the time required for jointly processing the multiple CSI reports, wherein the other CSI reports are CSI reports except the first CSI report.

In another implementation, the first CSI reports are fed back in case that the first CSI reports are processed according to a predefined CSI process time and there is only one first CSI report in a predefined CSI process window.

Wherein the CSI process time includes a CSI process time when no association is made with other CSI reports, which are CSI reports other than the first CSI report. And the CSI processing time window is the calculation processing time required from the initiation of the CSI report to the reporting.

For example, the CSI processing time and the CSI processing window are described below with reference to fig. 11a to 11 c.

Referring to fig. 11a, the start position of a CSI report processing window is the start time of a CSI report, i.e., time t1, and the end position is the end time of the last RS calculation associated therewith, i.e., time t 2. Where Δ t represents the processing delay. The start position of the two CSI report joint processing time windows is the time when the first CSI report is initiated, i.e. time t1, and the end position is the time when the last RS calculation of all the RSs associated with the two CSI reports is finished, i.e. time t 4. The processing time lengths required by different CSI reports are different, and in order to ensure the universality of the window, the window length may be set to a fixed value slightly larger than the maximum value of the statistical window length, for example, a CSI report processing window length in fig. 11a may be set to a fixed value slightly larger than t2-t 1.

When any CSI report is initiated, a CSI processing time window is opened. When the time interval of two CSI reports is less than the length of one CSI Report processing window, i.e., there are two CSI reports in one CSI process time window, as shown in Report #2 and Report #3 in fig. 11 b. In this case, if CSI-RS resources or SS/PBCH block resources associated with Report #2 and Report #3 are different, the terminal may select only one CSI Report for reporting according to a certain rule, for example, select a CSI Report with an earlier initiation time for reporting according to the initiation time of the CSI Report; or selecting a CSI report with a better measurement result for reporting according to the measurement condition of the CSI-RS resource or SS/PBCH block resource associated with the CSI report.

For the case that the timeline of the CSI processing time window is defined as joint processing of multiple CSI reports, since the measurement and statistical results required for multiple CSI reports in the CSI processing window are all obtained, multiple CSI reports may be allowed to be reported in one CSI processing time window, as shown in fig. 11 c.

As shown in fig. 12, a flowchart of a method 1200 for reporting channel state information provided in an exemplary embodiment of the present application is shown, where the method 1200 may be applied to, but not limited to, a network-side device, and may be specifically executed by hardware and/or software installed in the network-side device. The method 1200 includes at least the following steps.

S1210, sending resource indication information to a terminal, where the resource indication information is used to indicate a plurality of target resource groups to the terminal, so that the terminal reports a first CSI report based on the plurality of target resource groups, and each of the target resource groups corresponds to a different target TRP.

For the implementation process of S1210, reference may be made to the related descriptions in the foregoing methods 200, 400, 700, and 1000, and details are not repeated herein for avoiding repetition.

In the method 1200 provided in this embodiment, a resource allocation manner is used to enable a target resource in a CSI report reported by a terminal to a target TRP to correspond to a CSI-RS resource of the target TRP, so as to effectively enhance simultaneous transmission capabilities of multiple TRPs/panels among multiple TRPs, such as simultaneous reception capabilities of the terminal, simultaneous transmission capabilities of multiple TRPs, and the like.

As a possible implementation, the target resource includes a channel state information-reference signal, CSI-RS, resource and/or an SSB resource.

As another possible implementation manner, each target resource group includes a preset number of target resources, where the preset number is an upward rounding of N/M, or the preset number is a downward rounding of N/M, N is greater than or equal to M, where N is the total number of target resources configured by the network side device, and M is the total number of target resource groups indicated by the resource indication information.

As another possible implementation manner, the resource indication information is transmitted through radio resource control RRC, media access control element MAC CE, or downlink control information DCI.

As another possible implementation manner, the method further includes: and configuring a CSI report time interval according to CSI processing capacity under the condition that CSI report conflicts exist in a plurality of reported CSI reports and the preset CSI processing time is the time required by the terminal to process one CSI report, wherein the CSI processing capacity is reported by the terminal, and the CSI report time interval is not less than the time corresponding to the CSI processing capacity.

As another possible implementation manner, the method further includes: calculating target CSI processing time according to the time required by the terminal to process the last RS in all RSs associated with the CSI reports when CSI report conflicts exist in the reported CSI reports and the preconfigured CSI processing time is the time required by the terminal to process the CSI reports; and configuring a CSI reporting time interval according to the target CSI processing time.

In the foregoing method embodiments provided in this application, the execution subject may be a reporting apparatus of channel state information, or a control module in the reporting apparatus of channel state information, configured to execute a reporting method of channel state information. In the following section, a method for reporting channel state information by a reporting apparatus of channel state information is taken as an example in the embodiment of the present application, and the reporting apparatus of channel state information provided in the embodiment of the present application is described.

As shown in fig. 13a, a block diagram of an apparatus 1300 for reporting channel state information according to an exemplary embodiment of the present application is provided, where the apparatus 1300 includes: a selecting module 1310, configured to select one or more target resources from each target resource group; the target resource group is determined according to the received resource indication information; a determining module 1320, configured to determine a first CSI report according to each of the target resources; a feedback module 1330 configured to feedback the first CSI report.

In a possible implementation manner, each of the target resource groups corresponds to a different target transmission and reception point TRP.

In one possible implementation, the target resource group includes channel state information-reference signal, CSI-RS, resources and/or SSB resources, and the CSI-RS resources include at least one of periodic CSI-RS, aperiodic CSI-RS, and semi-persistent CSI-RS resources.

In a possible implementation manner, the resource indication information is transmitted through radio resource control RRC, media access control element MAC CE, or downlink control information DCI.

In a possible implementation manner, each target resource group includes a preset number of target resources, where the preset number is an upward rounding of N/M, or the preset number is a downward rounding of N/M, where N is greater than or equal to M, N is a total number of target resources configured by a network side device, and M is a total number of the target resource groups.

In a possible implementation manner, when the first CSI report includes a target beam that is selected by a terminal and needs to be reported, the first CSI report satisfies at least one of the following conditions: at least one CRI combination is received by the terminal at the same time in CRI combinations obtained by combining CRIs in the first CSI report and a second CSI report which are associated with each other, the second CSI report is determined based on the target resource group, and the feedback time of the second CSI report is earlier than that of the first CSI report; the first CSI report is a basic beam report; and under the condition that the first CSI report is non-basic beam reporting, the CRI in the first CSI report and the CRI in scheduled basic beam reporting are simultaneously received by the terminal.

In one possible implementation, the target beam is determined according to at least one of: a beam in the second CSI report; and the preset uplink transmission or downlink transmission corresponds to the wave beam.

In a possible implementation manner, the selecting module 1310 is configured to perform any one of the following operations when a predetermined pattern is satisfied:

selecting one or more target resources from each target resource group in a one-to-one pairing mode based on the CRI in the second CSI report; selecting one or more target resources from each target resource group in a one-to-many pairing mode based on the CRI in the second CSI report; selecting one or more target resources from each target resource group in a complete pairing mode based on the CRI in the second CSI report; wherein the second CSI report is determined based on the target set of resources and a feedback time of the second CSI report is earlier than a feedback time of the first CSI report.

In one possible implementation, the predetermined pattern includes a combination of: configuring one or more CSI reporting configurations; configuring one or more uplink transmission resources for each CSI report configuration; each of the CSI reporting configurations is an un-enabled group-based beam reporting; and associating one target resource group with each CSI report configuration.

In a possible implementation manner, the feedback module is configured to report a first layer 1-reference signal received power L1-RSRP and report a second layer L1-RSRP in a differential manner under the condition that beam pairing is performed according to the one-to-one pairing manner, the one-to-many pairing manner, or the complete pairing manner; wherein the first L1-RSRP is the maximum value of a plurality of L1-RSRPs corresponding to the CRI which is successfully paired, and the second L1-RSRP is the other LI-RSRPs except the first LI-RSRP in the plurality of LI-RSRPs.

In one possible implementation, the one-to-one pairing mode includes a corresponding position pairing and a cross position pairing.

In one possible implementation manner, when a terminal completes reporting a second CSI report and a plurality of CRIs included in the second CSI report are received simultaneously, a first CSI report associated with the second CSI report satisfies at least one of the following conditions: a CRI included in the first CSI report being at least partially identical to a CRI included in the second CSI report; in the absence of the same CRI in the first CSI report and the second CSI report, a specified CRI in the first CSI report and a specified CRI in the second CSI report are received by the terminal at the same time; the plurality of CRIs included in the first CSI report are received by the terminal at the same time.

In a possible implementation manner, the determining module 1320 is further configured to determine, according to a predetermined transmission scheme assumption, a specified content included in the first CSI report when multiple CRIs included in the first CSI report are received simultaneously, or when a CRI in the first CSI report is combined with a CRI in a second CSI report, and when there is a combination of CRIs received simultaneously, where the specified content is one or more of CRI, PMI, RI, and CQI in the first CSI report; wherein a feedback time of the second CSI report is earlier than a feedback time of the first CSI report.

In a possible implementation manner, the determining module 1320 is specifically configured to determine target content according to a first specific content in the first CSI report and/or a first specific content in the second CSI report, where the first specific content is one or more of CRI, PMI, RI, and CQI; and replacing the first specified content in the first CSI report with the target content.

In one possible implementation, the predetermined transmission scheme hypothesis comprises non-coherent joint transmission NCJT or dynamic transmission point selection DPS.

In one possible implementation, the predetermined transmission scheme hypothesis may be indicated by any one of the following: the first CSI report; agreement is agreed; and (4) high-level configuration.

In one possible implementation, referring to fig. 13b, the apparatus 1300 further includes: an opening module 1340 for opening a preconfigured report delay window; the determining module 1320 is further configured to determine the first CSI report according to each of the target resources and the second CSI report; wherein the feedback time of the second CSI report is earlier than the feedback time of the first CSI report, and the feedback time of the second CSI report and the feedback time of the first CSI report are both within the reporting delay window.

In a possible implementation, the report delay window is determined by any one of: the terminal and the network side equipment negotiate and determine; implicit acquisition; an RRC indication; MAC CE indication; and DCI indication.

In one possible implementation, in a case that the reporting delay window is indicated by the DCI, the reporting delay window is indicated by a CSI terminal request field in the DCI.

In one possible implementation, the reporting delay window is an absolute time window or a relative time window.

In a possible implementation manner, multiple CSI reports located in the same reporting delay window are the same, or the CRI and/or the SSB RI in the multiple CSI reports located in the same reporting delay window are the same.

In a possible implementation manner, the apparatus 1300 further includes: a receiving module 1350, configured to receive data carried by a predetermined beam if the target beam included in the first CSI report is not satisfied to be received simultaneously.

In a possible implementation manner, the feedback module 1330 is further configured to, in a case that a first CSI report is processed according to a predefined CSI processing time and there is only one first CSI report in a predefined CSI processing window, feed back the first CSI report or not update the content of the CSI report.

In one possible implementation, the CSI processing time includes a CSI processing time when no association is made with other CSI reports, which are CSI reports other than the first CSI report.

In a possible implementation manner, the feedback module 1330 is configured to, when the terminal reports time required for jointly processing a plurality of CSI reports and the first CSI report is associated with other CSI reports, process the first CSI report according to the time required for jointly processing the plurality of CSI reports, where the other CSI reports are CSI reports other than the first CSI report.

The reporting apparatus 1300 of channel state information provided in this embodiment of the present application can implement each process implemented by the method embodiments of fig. 2 to fig. 10, and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

In addition, the reporting apparatus 1300 of channel state information in the embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus 1300 may be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The reporting apparatus 1300 of channel state information in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

As shown in fig. 14a, a block diagram of an apparatus 1400 for reporting channel state information according to an example embodiment of the present application is provided, where the apparatus 1400 includes: a sending module 1410, configured to send resource indication information to a terminal, where the resource indication information is used to indicate a plurality of target resource groups to the terminal, so that the terminal reports a first CSI report based on the plurality of target resource groups, and each of the target resource groups corresponds to a different target TRP; a transceiver 1420.

In one possible implementation, the target resource includes a channel state information-reference signal, CSI-RS, resource and/or an SSB resource.

In a possible implementation manner, each target resource group includes a preset number of target resources, where the preset number is an upward rounding of N/M, or the preset number is a downward rounding of N/M, N is greater than or equal to M, N is a total number of target resources configured by the network side device, and M is a total number of target resource groups indicated by the resource indication information.

In a possible implementation manner, the resource indication information is transmitted through radio resource control RRC, media access control element MAC CE, or downlink control information DCI.

In one possible implementation, referring to fig. 14b, the apparatus 1400 further includes: a first configuration module 1430, configured to configure a CSI reporting time interval according to CSI processing capability when a CSI report conflict exists in a plurality of reported CSI reports and a preconfigured CSI processing time is a time required by the terminal to process one CSI report, where the CSI processing capability is reported by the terminal and the CSI reporting time interval is not less than a time corresponding to the CSI processing capability.

In one possible implementation, referring again to fig. 14b, the apparatus 1400 further includes: a second configuration module 1440, configured to, when there is a CSI report conflict in the reported CSI reports and the preconfigured CSI processing time is a time required by the terminal to process multiple CSI reports, calculate a target CSI processing time according to a time required by the terminal to process a last RS of all RSs associated with the CSI reports; and configuring a CSI reporting time interval according to the target CSI processing time.

The device 1400 for reporting channel state information according to the embodiment of the present application can implement each process implemented in the embodiment of the method in fig. 12, and achieve the same technical effect, and is not described herein again to avoid repetition.

As shown in fig. 15, an embodiment of the present application further provides a communication device 1500, which includes a processor 1501, a memory 1502, and a program or an instruction stored in the memory 1502 and executable on the processor 1501, for example, when the communication device 1500 is a terminal, the program or the instruction is executed by the processor 1501 to implement the processes of the above-mentioned embodiment of the method for reporting channel state information, and the same technical effect can be achieved. When the communication device 1500 is a network device, the program or the instructions are executed by the processor 1501 to implement the processes of the above-described embodiment of the channel state information reporting method, and the same technical effects can be achieved.

In an implementation manner, the communication device 1500 may be a terminal, and fig. 16 is a schematic diagram of a hardware structure of a terminal 1600 implementing the embodiment of the present application. The terminal 1600 includes, but is not limited to: radio frequency unit 1601, network module 1602, audio output unit 1603, input unit 1604, sensor 1605, display unit 1606, user input unit 1607, interface unit 1608, memory 1609, and processor 1610.

Those skilled in the art will appreciate that terminal 1600 may also include a power supply (e.g., a battery) for powering the various components, which may be logically coupled to processor 1610 via a power management system to perform the functions of managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 16 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again.

It should be understood that in the embodiment of the present application, the input Unit 1604 may include a Graphics Processing Unit (GPU) 1041 and a microphone 16042, and the Graphics processor 16041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1606 may include a display panel 16061, and the display panel 16061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1607 includes a touch panel 16071 and other input devices 16072. Touch panel 16071, also referred to as a touch screen. The touch panel 16071 may include two parts of a touch detection device and a touch controller. Other input devices 16072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment, the radio frequency unit 1601 receives downlink data from a network device and then processes the downlink data in the processor 1610; in addition, the uplink data is sent to the network side equipment. In general, the radio frequency unit 1601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1609 may be used to store software programs or instructions as well as various data. The memory 1609 may mainly include a stored program or instruction area and a stored data area, wherein the stored program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 1609 may include a high-speed random access Memory, and may also include a nonvolatile Memory, which may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable PROM (EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 1610 may include one or more processing units; alternatively, processor 1610 may integrate an application processor, which handles primarily the operating system, user interface, and applications or instructions, and a modem processor, which handles primarily wireless communications, such as a baseband processor. It is to be appreciated that the modem processor described above may not be integrated into processor 1610.

The processor 1610 is configured to select one or more target resources from each target resource group; the target resource group is determined according to the received resource indication information; determining a first Channel State Information (CSI) report according to each target resource; feeding back the first CSI report.

In this embodiment, the terminal determines a target resource group according to the resource indication information, and then selects one or more target resources from each target resource group to implement feedback of the CSI report, so that the present embodiment enables the target resources in the CSI report reported by the terminal to the target TRP to correspond to CSI-RS resources of the target TRP and the like in a resource configuration manner, thereby effectively enhancing simultaneous transmission capability of multiple TRPs/panels among multiple TRPs, such as simultaneous reception capability of the terminal, simultaneous transmission capability of multiple TRPs, and the like.

In a possible implementation manner, each of the target resource groups corresponds to a different target transmission and reception point TRP.

In one possible implementation, the target resource group includes channel state information-reference signal, CSI-RS, resources and/or SSB resources, and the CSI-RS resources include at least one of periodic CSI-RS, aperiodic CSI-RS, and semi-persistent CSI-RS resources.

In a possible implementation manner, the resource indication information is transmitted through radio resource control RRC, media access control element MAC CE, or downlink control information DCI.

In a possible implementation manner, each target resource group includes a preset number of target resources, where the preset number is an upward rounding of N/M, or the preset number is a downward rounding of N/M, where N is greater than or equal to M, N is a total number of target resources configured by a network side device, and M is a total number of the target resource groups.

In a possible implementation manner, when the first CSI report includes a target beam that is selected by the terminal and needs to be reported, the first CSI report satisfies at least one of the following conditions: at least one CRI combination is received by the terminal at the same time in CRI combinations obtained by combining CRIs in the first CSI report and a second CSI report which are associated with each other, the second CSI report is determined based on the target resource group, and the feedback time of the second CSI report is earlier than that of the first CSI report; the first CSI report is a basic beam report; and under the condition that the first CSI report is non-basic beam reporting, the CRI in the first CSI report and the CRI in scheduled basic beam reporting are simultaneously received by the terminal.

In one possible implementation, the target beam is determined according to at least one of: a beam in the second CSI report; and the preset uplink transmission or downlink transmission corresponds to the wave beam.

In a possible implementation manner, the selecting, by the processor, one or more target resources from each target resource group includes: in the case where the predetermined pattern is satisfied, either: selecting one or more target resources from each target resource group in a one-to-one pairing mode based on the CRI in the second CSI report; selecting one or more target resources from each target resource group in a one-to-many pairing mode based on the CRI in the second CSI report; selecting one or more target resources from each target resource group in a complete pairing mode based on the CRI in the second CSI report; wherein the second CSI report is determined based on the target set of resources and a feedback time of the second CSI report is earlier than a feedback time of the first CSI report.

In one possible implementation, the predetermined pattern includes a combination of: configuring one or more CSI reporting configurations; configuring one or more uplink transmission resources for each CSI report configuration; each of the CSI reporting configurations is an un-enabled group-based beam reporting; and associating one target resource group with each CSI report configuration.

In one possible implementation, the feeding back the first CSI report by the processor includes: reporting a first layer of 1-reference signal received power L1-RSRP under the condition of performing beam pairing according to the one-to-one pairing mode, the one-to-many pairing mode or the complete pairing mode, and reporting a second layer of L1-RSRP in a differential mode; wherein the first L1-RSRP is the maximum value of a plurality of L1-RSRPs corresponding to the CRI which is successfully paired, and the second L1-RSRP is the other LI-RSRPs except the first LI-RSRP in the plurality of LI-RSRPs.

In one possible implementation, the one-to-one pairing mode includes a corresponding position pairing and a cross position pairing.

In one possible implementation manner, when the terminal completes reporting a second CSI report and a plurality of CRIs included in the second CSI report are received simultaneously, a first CSI report associated with the second CSI report satisfies at least one of the following conditions: a CRI included in the first CSI report being at least partially identical to a CRI included in the second CSI report; in the absence of the same CRI in the first CSI report and the second CSI report, a specified CRI in the first CSI report and a specified CRI in the second CSI report are received by the terminal at the same time; the plurality of CRIs included in the first CSI report are received by the terminal at the same time.

In a possible implementation, the method further includes: when a plurality of CRIs included in the first CSI report are received simultaneously, or when a CRI in the first CSI report is combined with a CRI in a second CSI report, and the CRI combination is received simultaneously, the specified content included in the first CSI report is determined according to a preset transmission scheme hypothesis, wherein the specified content is one or more of CRI, PMI, RI and CQI in the first CSI report; wherein a feedback time of the second CSI report is earlier than a feedback time of the first CSI report.

In one possible implementation manner, the determining, according to a predetermined transmission scheme assumption, that the specific content included in the first CSI report is determined includes: determining target content according to first specified content in the first CSI report and/or first specified content in the second CSI report, wherein the first specified content is one or more of CRI, PMI, RI and CQI; replacing the first specified content in the first CSI report with the target content.

In one possible implementation, the predetermined transmission scheme hypothesis comprises non-coherent joint transmission NCJT or dynamic transmission point selection DPS.

In one possible implementation, the predetermined transmission scheme hypothesis may be indicated by any one of the following: the first CSI report; agreement is agreed; and (4) high-level configuration.

In a possible implementation manner, before feeding back the first CSI report, the processor is further configured to open a preconfigured report delay window; the processor performs the determining a first CSI report according to each of the target resources, including: determining the first CSI report according to each target resource and the second CSI report; wherein the feedback time of the second CSI report is earlier than the feedback time of the first CSI report, and the feedback time of the second CSI report and the feedback time of the first CSI report are both within the reporting delay window.

In a possible implementation, the report delay window is determined by any one of: the terminal and the network side equipment negotiate and determine; implicit acquisition; an RRC indication; MAC CE indication; and DCI indication.

In one possible implementation, in a case that the reporting delay window is indicated by the DCI, the reporting delay window is indicated by a CSI terminal request field in the DCI.

In one possible implementation, the reporting delay window is an absolute time window or a relative time window.

In a possible implementation manner, multiple CSI reports located in the same reporting delay window are the same, or the CRI and/or the SSB RI in the multiple CSI reports located in the same reporting delay window are the same.

In a possible implementation manner, before feeding back the first CSI report, the processor is further configured to feed back the first CSI report or not update the content of the CSI report if the first CSI report is processed according to a predefined CSI processing time and there is only one first CSI report in a predefined CSI processing window.

In one possible implementation, the CSI processing time includes a CSI processing time when no association is made with other CSI reports, which are CSI reports other than the first CSI report.

In one possible implementation, the processor performs feedback of the first CSI report, including: and under the condition that the terminal reports the time required for jointly processing the multiple CSI reports and the first CSI report is associated with other CSI reports, processing the first CSI report according to the time required for jointly processing the multiple CSI reports, wherein the other CSI reports are CSI reports except the first CSI report.

In one possible implementation, after feeding back the first CSI report, the processor is further configured to receive data carried by a predetermined beam in a case that a target beam included in the first CSI report is not satisfied to be received simultaneously.

In the case where the communication device 1500 is a network device, as shown in fig. 17, the network device 1700 includes: antenna 1701, radio frequency device 1702, baseband device 1703. An antenna 1701 is coupled to the radio frequency device 1702. In the uplink direction, rf device 1702 receives information via antenna 1701 and sends the received information to baseband device 1703 for processing. In the downlink direction, the baseband device 1703 processes information to be transmitted and transmits the processed information to the rf device 1702, and the rf device 1702 processes the received information and transmits the processed information via the antenna 1701.

The above band processing apparatus may be located in the baseband apparatus 1703, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 1703, where the baseband apparatus 1703 includes the processor 174 and the memory 1705.

The baseband apparatus 1703 may include, for example, at least one baseband board on which a plurality of chips are disposed, as shown in fig. 17, where one of the chips, for example, the processor 1704, is connected to the memory 1705 to call up a program in the memory 1705 to perform the network-side device operations shown in the above method embodiments.

The baseband device 1703 may further include a network interface 1706, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 1702.

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 1705 and executable on the processor 1704 call the instructions or programs in the memory 1705 to execute the method executed by each module shown in fig. 12, and achieve the same technical effect, and are not described herein in detail to avoid repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above-mentioned channel state information reporting method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or an instruction, to implement each process of the above-mentioned channel state information reporting method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

The embodiment of the present application further provides a computer program product, where the computer program product includes a processor, a memory, and a program or an instruction stored in the memory and executable on the processor, and when the program or the instruction is executed by the processor, the process of the embodiment of the method for reporting channel state information is implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network-side device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (65)

1. A method for reporting channel state information, the method being performed by a terminal, the method comprising:

selecting one or more target resources from each target resource group; the target resource group is determined according to the received resource indication information;

determining a first Channel State Information (CSI) report according to each target resource;

feeding back the first CSI report.

2. The method of claim 1, wherein each of the target resource groups corresponds to different target transmission reception points TRP.

3. The method of claim 1, wherein the target set of resources comprises channel state information-reference signal (CSI-RS) resources and/or Synchronization Signal Block (SSB) resources, the CSI-RS resources comprising at least one of periodic CSI-RS, aperiodic CSI-RS resources, semi-persistent CSI-RS resources.

4. The method of claim 1, wherein the resource indication information is transmitted by Radio Resource Control (RRC), Medium Access Control (MAC) control element (MAC CE), or Downlink Control Information (DCI).

5. The method of claim 1, wherein each target resource group includes a preset number of target resources, and the preset number is rounded up by N/M or rounded down by N/M, where N ≧ M, N is the total number of target resources configured by the network-side device, and M is the total number of the target resource groups.

6. The method according to any of claims 1-5, wherein in case that the first CSI report includes a target beam selected by the terminal and needing to be reported, the first CSI report satisfies at least one of the following conditions:

at least one CRI combination exists in CRI combinations obtained by combining CSI-RS resource indications (CRIs) in the first CSI report and a second CSI report which are related with each other, the CRI combinations are simultaneously received by the terminal, the second CSI report is determined based on the target resource group, and the feedback time of the second CSI report is earlier than that of the first CSI report;

the first CSI report is a basic beam report;

and under the condition that the first CSI report is non-basic beam reporting, the CRI in the first CSI report and the CRI in scheduled basic beam reporting are simultaneously received by the terminal.

7. The method of claim 6, the target beam being determined according to at least one of:

a beam in the second CSI report;

and the preset uplink transmission or downlink transmission corresponds to the wave beam.

8. The method of claim 1, wherein the selecting one or more target resources from each set of target resources comprises:

in the case where the predetermined pattern is satisfied, either:

selecting one or more target resources from each target resource group in a one-to-one pairing mode based on the CRI in the second CSI report;

selecting one or more target resources from each target resource group in a one-to-many pairing mode based on the CRI in the second CSI report;

selecting one or more target resources from each target resource group in a complete pairing mode based on the CRI in the second CSI report;

wherein the second CSI report is determined based on the target set of resources and a feedback time of the second CSI report is earlier than a feedback time of the first CSI report.

9. The method of claim 8, wherein the predetermined pattern comprises a combination of:

configuring one or more CSI reporting configurations;

configuring one or more uplink transmission resources for each CSI report configuration;

each of the CSI reporting configurations is an un-enabled group-based beam reporting;

and associating one target resource group with each CSI report configuration.

10. The method of claim 8, wherein the feeding back the first CSI report comprises:

reporting a first layer of 1-reference signal received power L1-RSRP under the condition of performing beam pairing according to the one-to-one pairing mode, the one-to-many pairing mode or the complete pairing mode, and reporting a second layer of L1-RSRP in a differential mode;

wherein the first L1-RSRP is the maximum value of a plurality of L1-RSRPs corresponding to the CRI which is successfully paired, and the second L1-RSRP is the other LI-RSRPs except the first LI-RSRP in the plurality of LI-RSRPs.

11. The method of claim 8 or 10, wherein the one-to-one pairing manner comprises a corresponding position pairing and a cross position pairing.

12. The method of claim 1, wherein a first CSI report associated with a second CSI report satisfies at least one of the following conditions if the terminal completes reporting the second CSI report and a plurality of CRIs included in the second CSI report are received simultaneously:

a CRI included in the first CSI report being at least partially identical to a CRI included in the second CSI report;

in the absence of the same CRI in the first CSI report and the second CSI report, a specified CRI in the first CSI report and a specified CRI in the second CSI report are received by the terminal at the same time;

the plurality of CRIs included in the first CSI report are received by the terminal at the same time.

13. The method of claim 1, wherein the method further comprises:

in the case that a plurality of CRIs included in the first CSI report are received simultaneously, or in the case that there is a combination of CRIs received simultaneously when the CRI in the first CSI report is combined with the CRI in a second CSI report, the specified content included in the first CSI report is determined according to a predetermined transmission scheme assumption, the specified content being one or more of CRI in the first CSI report, a precoding matrix rank indication PMI, a rank indication RI, and a channel quality indication CQI; wherein a feedback time of the second CSI report is earlier than a feedback time of the first CSI report.

14. The method of claim 13, wherein the determination that the specified content included in the first CSI report is determined based on a predetermined transmission scheme assumption comprises:

determining target content according to first specified content in the first CSI report and/or first specified content in the second CSI report, wherein the first specified content is one or more of CRI, PMI, RI and CQI;

replacing the first specified content in the first CSI report with the target content.

15. The method of claim 13, wherein the predetermined transmission scheme hypothesis comprises non-coherent joint transmission NCJT or dynamic transmission point selection DPS.

16. The method of claim 13, wherein the predetermined transmission scheme hypothesis can be indicated by any one of:

the first CSI report;

agreement is agreed;

and (4) high-level configuration.

17. The method of any one of claims 1-16, wherein prior to feeding back a first CSI report, the method further comprises:

opening a preconfigured report delay window;

determining a first CSI report according to each of the target resources, comprising:

determining the first CSI report according to each target resource and the second CSI report; wherein the feedback time of the second CSI report is earlier than the feedback time of the first CSI report, and the feedback time of the second CSI report and the feedback time of the first CSI report are both within the reporting delay window.

18. The method of claim 17, wherein the reporting delay window is determined by any one of:

the terminal and the network side equipment negotiate and determine;

implicit acquisition;

an RRC indication;

MAC CE indication;

and DCI indication.

19. The method of claim 18, wherein in a case that the reporting delay window is indicated by the DCI, the reporting delay window is indicated by a CSI terminal request field in the DCI.

20. The method of claim 17, wherein the reporting delay window is an absolute time window or a relative time window.

21. The method of claim 17, wherein multiple CSI reports located within the same reporting delay window are the same, or,

the CRI and/or the SSB RI in a plurality of CSI reports located in the same report delay window are the same.

22. The method of claim 1, wherein feeding back a first CSI report comprises:

feeding back first CSI reports in case that the first CSI reports are processed according to a predefined CSI process time and there is only one first CSI report in a predefined CSI process window.

23. The method of claim 22, wherein the CSI process time comprises a CSI process time without an association with other CSI reports, the other CSI reports being CSI reports other than the first CSI report.

24. The method of claim 1, wherein feeding back a first CSI report comprises:

and under the condition that the terminal reports the time required for jointly processing the multiple CSI reports and the first CSI report is associated with other CSI reports, processing the first CSI report according to the time required for jointly processing the multiple CSI reports, wherein the other CSI reports are CSI reports except the first CSI report.

25. The method according to any of claims 1-24, after feeding back the first CSI report, the method further comprising:

receiving data carried by a predetermined beam in case that a target beam included in the first CSI report does not satisfy being simultaneously received, or in case that there is no combination of CRIs simultaneously received when CRIs in the first CSI report and CRIs in a second CSI report are combined.

26. A method for reporting channel state information, the method being performed by a network side device, the method comprising:

and sending resource indication information to a terminal, wherein the resource indication information is used for indicating a plurality of target resource groups to the terminal, so that the terminal reports the first CSI report based on the plurality of target resource groups, and each target resource group corresponds to different target sending receiving points TRP respectively.

27. The method of claim 26, wherein the target resources comprise channel state information-reference signal (CSI-RS) resources and/or SSB resources.

28. The method of claim 26, wherein each of the target resource groups includes a preset number of target resources, and the preset number is rounded up by N/M, or the preset number is rounded down by N/M, N is greater than or equal to M, where N is a total number of target resources configured by the network-side device, and M is a total number of target resource groups indicated by the resource indication information.

29. The method of claim 26, wherein the resource indication information is transmitted through Radio Resource Control (RRC), Media Access Control (MAC) control element (MAC CE), or Downlink Control Information (DCI).

30. The method of claim 26, wherein the method further comprises:

and configuring a CSI report time interval according to CSI processing capacity under the condition that CSI report conflicts exist in a plurality of reported CSI reports and the preset CSI processing time is the time required by the terminal to process one CSI report, wherein the CSI processing capacity is reported by the terminal, and the CSI report time interval is not less than the time corresponding to the CSI processing capacity.

31. The method of claim 26, wherein the method further comprises:

calculating target CSI processing time according to the time required by the terminal to process the last RS in all RSs associated with the CSI reports when CSI report conflicts exist in the reported CSI reports and the preconfigured CSI processing time is the time required by the terminal to process the CSI reports;

and configuring a CSI reporting time interval according to the target CSI processing time.

32. An apparatus for reporting channel state information, the apparatus comprising:

the selection module is used for selecting one or more target resources from each target resource group; the target resource group is determined according to the received resource indication information;

a determining module, configured to determine a first CSI report according to each of the target resources;

a feedback module to feedback the first CSI report.

33. The apparatus of claim 32, wherein each of the target resource groups corresponds to different target transmission reception points TRP.

34. The apparatus of claim 32, wherein the target set of resources comprises channel state information-reference signal (CSI-RS) resources and/or SSB resources, the CSI-RS resources comprising at least one of periodic CSI-RS, aperiodic CSI-RS resources, semi-persistent CSI-RS resources.

35. The apparatus of claim 32, wherein the resource indication information is transmitted through Radio Resource Control (RRC), Media Access Control (MAC) control element (MAC CE), or Downlink Control Information (DCI).

36. The apparatus of claim 32, wherein each target resource group includes a preset number of target resources, and the preset number is rounded up by N/M or rounded down by N/M, where N ≧ M, N is the total number of target resources configured by the network-side device, and M is the total number of the target resource groups.

37. The apparatus according to any of claims 32-36, wherein in case that the first CSI report includes a target beam that a terminal selects and needs to report, the first CSI report satisfies at least one of the following conditions:

at least one CRI combination is received by the terminal at the same time in CRI combinations obtained by combining CRIs in the first CSI report and a second CSI report which are associated with each other, the second CSI report is determined based on the target resource group, and the feedback time of the second CSI report is earlier than that of the first CSI report;

the first CSI report is a basic beam report;

and under the condition that the first CSI report is non-basic beam reporting, the CRI in the first CSI report and the CRI in scheduled basic beam reporting are simultaneously received by the terminal.

38. The apparatus of claim 37, the target beam is determined according to at least one of:

a beam in the second CSI report;

and the preset uplink transmission or downlink transmission corresponds to the wave beam.

39. The apparatus of claim 32, wherein the selecting module is configured to perform any one of the following if a predetermined pattern is satisfied:

selecting one or more target resources from each target resource group in a one-to-one pairing mode based on the CRI in the second CSI report;

selecting one or more target resources from each target resource group in a one-to-many pairing mode based on the CRI in the second CSI report;

selecting one or more target resources from each target resource group in a complete pairing mode based on the CRI in the second CSI report;

wherein the second CSI report is determined based on the target set of resources and a feedback time of the second CSI report is earlier than a feedback time of the first CSI report.

40. The apparatus of claim 39, wherein the predetermined pattern comprises a combination of:

configuring one or more CSI reporting configurations;

configuring one or more uplink transmission resources for each CSI report configuration;

each of the CSI reporting configurations is an un-enabled group-based beam reporting;

and associating one target resource group with each CSI report configuration.

41. The apparatus of claim 39, wherein the feedback module is configured to report a first layer 1-reference signal received power L1-RSRP and report a second L1-RSRP differentially when beam pairing is performed according to the one-to-one pairing scheme, the one-to-many pairing scheme, or the full pairing scheme; wherein the first L1-RSRP is the maximum value of a plurality of L1-RSRPs corresponding to the CRI which is successfully paired, and the second L1-RSRP is the other LI-RSRPs except the first LI-RSRP in the plurality of LI-RSRPs.

42. The apparatus of claim 39 or 40, wherein the one-to-one pairing comprises a corresponding location pairing and a cross location pairing.

43. The apparatus of claim 32, wherein, in a case that a terminal completes reporting a second CSI report and a plurality of CRIs included in the second CSI report are received simultaneously, a first CSI report associated with the second CSI report satisfies at least one of the following conditions:

a CRI included in the first CSI report being at least partially identical to a CRI included in the second CSI report;

in the absence of the same CRI in the first CSI report and the second CSI report, a specified CRI in the first CSI report and a specified CRI in the second CSI report are received by the terminal at the same time;

the plurality of CRIs included in the first CSI report are received by the terminal at the same time.

44. The apparatus of claim 32, wherein the determining module is further for determining specified content included in the first CSI report according to a predetermined transmission scheme assumption if multiple CRIs included in the first CSI report are received simultaneously or if there is a combination of CRIs received simultaneously when combining a CRI in the first CSI report with a CRI in a second CSI report, the specified content being one or more of a CRI, a PMI, an RI, a CQI in the first CSI report; wherein a feedback time of the second CSI report is earlier than a feedback time of the first CSI report.

45. The apparatus of claim 44, wherein the determining module is specifically configured to determine the target content according to a first specific content in the first CSI report and/or a first specific content in the second CSI report, wherein the first specific content is one or more of CRI, PMI, RI, and CQI; and replacing the first specified content in the first CSI report with the target content.

46. The apparatus of claim 44, wherein the predetermined transmission scheme hypothesis comprises non-coherent joint transmission (NCJT) or a dynamic transmission point selection (DPS).

47. The apparatus of claim 44, wherein the predetermined transmission scheme hypothesis can be indicated by any one of:

the first CSI report;

agreement is agreed;

and (4) high-level configuration.

48. The apparatus of any one of claims 32-47, wherein the apparatus further comprises:

a starting module for starting a preconfigured report delay window;

the determining module is further configured to determine the first CSI report according to each of the target resources and the second CSI report; wherein the feedback time of the second CSI report is earlier than the feedback time of the first CSI report, and the feedback time of the second CSI report and the feedback time of the first CSI report are both within the reporting delay window.

49. The apparatus of claim 48, wherein the reporting delay window is determined by any one of:

the terminal and the network side equipment negotiate and determine;

implicit acquisition;

an RRC indication;

MAC CE indication;

and DCI indication.

50. The apparatus of claim 49, wherein in a case that the reporting delay window is indicated by the DCI, the reporting delay window is indicated by a CSI terminal request field in the DCI.

51. The apparatus of claim 48, wherein the reporting delay window is an absolute time window or a relative time window.

52. The apparatus of claim 48, wherein multiple CSI reports located within the same reporting delay window are the same, or,

the CRI and/or the SSB RI in a plurality of CSI reports located in the same report delay window are the same.

53. The apparatus of any one of claims 32-52, further comprising:

a receiving module, configured to receive data carried by a predetermined beam if a target beam included in the first CSI report does not satisfy being received simultaneously, or if there is no simultaneously received CRI combination when combining the CRI in the first CSI report and the CRI in the second CSI report.

54. The apparatus of claim 32, wherein the feedback module is further for feeding back a first CSI report if the first CSI report is processed at a predefined CSI process time and there is only one first CSI report in a predefined CSI process window.

55. The apparatus of claim 54, wherein the CSI process time comprises a CSI process time without an association with other CSI reports, the other CSI reports being CSI reports other than the first CSI report.

56. The apparatus of claim 32, wherein the feedback module is configured to process the first CSI report at a time required for joint processing of multiple CSI reports when a terminal reports the time required for joint processing of multiple CSI reports and the first CSI report is associated with other CSI reports, the other CSI reports being CSI reports other than the first CSI report.

57. An apparatus for reporting channel state information, the apparatus comprising:

the terminal comprises a sending module, a receiving module and a processing module, wherein the sending module is used for sending resource indication information to the terminal, the resource indication information is used for indicating a plurality of target resource groups to the terminal, so that the terminal reports a first CSI report based on the plurality of target resource groups, and each target resource group corresponds to different target sending receiving points (TRPs) respectively;

a transceiver.

58. The apparatus of claim 57, wherein the target resources comprise channel state information-reference signal (CSI-RS) resources and/or SSB resources.

59. The apparatus of claim 57, wherein each of the target resource groups includes a preset number of target resources, and the preset number is rounded up by N/M, or the preset number is rounded down by N/M, N is greater than or equal to M, where N is a total number of target resources configured by the network side device, and M is a total number of target resource groups indicated by the resource indication information.

60. The apparatus of claim 57, wherein the resource indication information is transmitted via Radio Resource Control (RRC), Medium Access Control (MAC) control element (MAC CE), or Downlink Control Information (DCI).

61. The apparatus of claim 57, wherein the apparatus further comprises:

a first configuration module, configured to configure a CSI reporting time interval according to CSI processing capability when a CSI report conflict exists among a plurality of reported CSI reports and a preconfigured CSI processing time is a time required by the terminal to process one CSI report, where the CSI processing capability is reported by the terminal and the CSI reporting time interval is not less than a time corresponding to the CSI processing capability.

62. The apparatus of claim 57, wherein the apparatus further comprises:

a second configuration module, configured to calculate a target CSI processing time according to a time required by the terminal to process a last RS of all RSs associated with the CSI reports when a CSI report conflict exists among the reported CSI reports and a preconfigured CSI processing time is a time required by the terminal to process the CSI reports; and configuring a CSI reporting time interval according to the target CSI processing time.

63. A terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the method for reporting channel state information according to any one of claims 1 to 25.

64. A network side device, comprising a processor, a memory and a program or an instruction stored on the memory and executable on the processor, wherein the program or the instruction when executed by the processor implements the steps of the method for reporting channel state information according to any one of claims 26 to 31.

65. A readable storage medium, on which a program or instructions are stored, which, when executed by a processor, implement the method for reporting channel state information according to any one of claims 1 to 25 or the steps of the method for reporting channel state information according to any one of claims 26 to 31.

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