Channel state information transmission method and apparatus, terminal, and network side device

Abstract

The present application relates to the technical field of communications, and discloses a channel state information (CSI) transmission method and apparatus, a terminal, and a network side device. The CSI transmission method in embodiments of the present application comprises: a terminal receives a CSI reporting configuration; on the basis of the CSI reporting configuration, the terminal reports a CSI report, wherein resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report comprises CSI of the at least one sub-configuration; or the terminal does not expect that when the resources associated with the CSI reporting configuration are configured as the N resource groups, the CSI reporting configuration is associated with the at least one sub-configuration; or the terminal does not expect that when the CSI reporting configuration is associated with the at least one sub-configuration, the resources associated with the CSI reporting configuration are configured as the N resource groups, wherein N is an integer greater than or equal to 2.

Description

Channel state information transmission method, device, terminal and network side equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202311284447.1 filed in China on September 28, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a channel state information transmission method, apparatus, terminal and network-side equipment. Background Art

[0004] Currently, in order to save network energy, a channel state information (CSI) report configuration (i.e., CSI report config) can include one or more sub-configurations (sub-config), each sub-config corresponds to a spatial domain pattern (SD pattern) configuration, and the terminal supports reporting the CSI of one or more sub-configs in a CSIreportconfig. In order to measure the channels of two transmission reception points (TRP), multiple non-zero power (NZP) channel state information reference signal (CSI-RS) resources (i.e., NZP CSI-RS resource) contained in a CSI resource set (CSI resource set) can be configured into two resource groups (resource group) to distinguish which TRP the CSI-RS resource comes from. The network side device can also be configured with at least one CSI-RS resource pair, where the two CSI-RS resources in the resource pair come from two resource groups respectively. According to the above configuration, the terminal can not only calculate the NCJT CSI assuming that the two CSI-RS resources contained in each CSI-RS resource pair are transmitted in a non-coherent joint transmission (NCJT) manner, but also calculate the s-TRP CSI assuming that the CSI-RS resources in the two resource groups are transmitted in a single TRP (s-TRP) manner.

[0005] However, in the prior art, there is no corresponding solution for how to control CSI reporting when the terminal supports CSI reporting of at least one sub-config in a CSI report config and CSI reporting of multiple TRPs at the same time.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a channel state information transmission method, apparatus, terminal and network-side equipment, which can provide a CSI reporting method when the terminal simultaneously supports CSI reporting of at least one sub-config in a CSI report config and CSI reporting of multiple TRPs.

[0008] In a first aspect, a channel state information transmission method is provided, the method comprising:

[0009] The terminal receives the channel state information CSI reporting configuration;

[0010] The terminal reports a CSI report according to the CSI reporting configuration;

[0011] The resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be associated with at least one sub-configuration, the resources associated with the CSI reporting configuration are configured as N resource groups; N is an integer greater than or equal to 2.

[0012] In a second aspect, a channel state information transmission device is provided, the device comprising:

[0013] A first receiving module is configured to receive a channel state information (CSI) reporting configuration;

[0014] A reporting module, configured to report a CSI report according to the CSI reporting configuration;

[0015] The resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be associated with at least one sub-configuration, the resources associated with the CSI reporting configuration are configured as N resource groups; N is an integer greater than or equal to 2.

[0016] According to a third aspect, a method for transmitting channel state information is provided, the method comprising:

[0017] The network side device sends the channel state information CSI reporting configuration;

[0018] The network side device receives the CSI report;

[0019] The resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the resources associated with the CSI reporting configuration are configured as N resource groups, the network-side device is prohibited from configuring the CSI reporting configuration to be associated with at least one sub-configuration; or, when the CSI reporting configuration is associated with at least one sub-configuration, the network-side device is prohibited from configuring the resources associated with the CSI reporting configuration to be N resource groups; N is an integer greater than or equal to 2.

[0020] In a fourth aspect, a channel state information transmission device is provided, the device comprising:

[0021] A sending module is used to send channel state information CSI reporting configuration;

[0022] A second receiving module, configured to receive a CSI report;

[0023] The resources associated with the CSI reporting configuration are configured as at least two resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the resources associated with the CSI reporting configuration are configured as at least two resource groups, the network-side device is prohibited from configuring the CSI reporting configuration to be associated with at least one sub-configuration; or, when the CSI reporting configuration is associated with at least one sub-configuration, the network-side device is prohibited from configuring the resources associated with the CSI reporting configuration to be at least two resource groups.

[0024] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0025] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive a channel state information (CSI) reporting configuration; and report a CSI report according to the CSI reporting configuration; wherein the resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be associated with at least one sub-configuration, the resources associated with the CSI reporting configuration are configured as N resource groups; N is an integer greater than or equal to 2.

[0026] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the third aspect are implemented.

[0027] In the eighth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the communication interface is used to send a channel state information CSI reporting configuration; the communication interface is also used to receive a CSI report; wherein the resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the resources associated with the CSI reporting configuration are configured as N resource groups, the network side device is prohibited from configuring the CSI reporting configuration to be associated with at least one sub-configuration; or, when the CSI reporting configuration is associated with at least one sub-configuration, the network side device is prohibited from configuring the resources associated with the CSI reporting configuration to be N resource groups; N is an integer greater than or equal to 2.

[0028] In the ninth aspect, a channel state information transmission system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the channel state information transmission method as described in the first aspect, and the network side device can be used to execute the steps of the channel state information transmission method as described in the third aspect.

[0029] In the tenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the third aspect are implemented.

[0030] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the third aspect.

[0031] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the third aspect.

[0032] In an embodiment of the present application, a terminal receives a CSI reporting configuration and reports a CSI report according to the CSI reporting configuration, wherein the resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration, that is, in an embodiment of the present application, when the terminal simultaneously supports the CSI reporting of at least one sub-config in a CSIreportconfig and the CSI reporting of multiple TRPs, the terminal can be configured to report multiple TRP CSI and single TRP CSI in one sub-config, which is conducive to assisting the network side device to make a decision on shutting down airspace-related equipment (for example, an antenna panel or TRP, etc.); or, in an embodiment of the present application, when the terminal simultaneously supports a CSI report config and CSI reporting of multiple TRPs, it is not expected that the resources associated with the CSI reporting configuration are configured as N resource groups and that the CSI reporting configuration is associated with at least one sub-configuration, or it is not expected that the resources associated with the CSI reporting configuration are configured as N resource groups when the CSI reporting configuration is associated with at least one sub-configuration. This is not only beneficial to reducing the complexity of the CSI reporting configuration, but also beneficial to reducing the complexity of CSI reporting on the terminal side. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0034] FIG2a is a schematic diagram of a multi-TRP transmission according to an embodiment of the present application;

[0035] FIG2 b is a second schematic diagram of multi-TRP transmission provided in an embodiment of the present application;

[0036] FIG2c is a third schematic diagram of multi-TRP transmission provided in an embodiment of the present application;

[0037] FIG3 is a schematic diagram of a CMR pair of a CSI report configuration provided in an embodiment of the present application;

[0038] FIG4 is a schematic diagram of a CMR pair composed of resources of two resource groups provided in an embodiment of the present application;

[0039] FIG5 is a flow chart of a channel state information transmission method provided in an embodiment of the present application;

[0040] FIG6 is a flowchart of another channel state information transmission method provided in an embodiment of the present application;

[0041] FIG7 is a structural diagram of a channel state information transmission device provided in an embodiment of the present application;

[0042] FIG8 is a structural diagram of another channel state information transmission device provided in an embodiment of the present application;

[0043] FIG9 is a structural diagram of a communication device provided in an embodiment of the present application;

[0044] FIG10 is a structural diagram of a terminal provided in an embodiment of the present application;

[0045] FIG11 is a structural diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0046] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0047] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0048] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0049] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can 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) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0050] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0051] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0052] For ease of understanding, some of the contents involved in the embodiments of this application are described below:

[0053] 1. Network Energy Saving

[0054] Network energy conservation is crucial for environmental sustainability, reducing environmental impact (greenhouse gas emissions), and saving operating costs. As 5G becomes more widespread across industries and geographic regions, network deployments are becoming denser to support more advanced services and applications, such as very high data rates (e.g., Extended Reality (XR)). This dense deployment and large-scale device use pose significant challenges to the energy consumption of 5G network equipment.

[0055] Energy consumption has become an important part of operators' operating expenses (OPEX). According to a report by the Global System for Mobile communications Association (GSMA), the energy cost of mobile networks accounts for about 23% of operators' total costs. Most of the energy consumption comes from the radio access network, especially the active antenna unit (AAU), of which data centers and fiber optic transmission account for a smaller proportion. The power consumption of wireless access can be divided into two parts: the dynamic part, that is, the energy consumption when data transmission / reception is in progress; and the static part, even if data transmission / reception is not in progress, the energy consumption is required to maintain the necessary operation of the radio access equipment. Therefore, the impact of 5G on the environment needs to be controlled, and new solutions need to be developed to improve network energy saving.

[0056] 2. Multiple TRP

[0057] The 3rd Generation Partnership Project (3GPP) proposed the use of multiple transmit and receive points (multi-TRP) / multi-panel scenarios. Multi-TRP transmission can improve transmission reliability and throughput performance. For example, a UE can receive the same data or different data from multiple TRPs. Multi-TRP transmission can include the following scenarios:

[0058] 1) Multi-antenna panel transmission within the same TRP (intra TRP), for example, as shown in Figure 2a;

[0059] 2) Inter-TRP multi-TRP / panel transmission, ideal backhaul, for example, as shown in Figure 2b;

[0060] 3) Multi-TRP / panel transmission between multiple TRPs and non-ideal backhaul, for example, as shown in Figure 2c.

[0061] 3GPP Release 16 (Rel-16) standardizes multi-transmitting / receiving point / multi-antenna panel scenarios, which can increase transmission reliability and throughput performance. For example, a UE can receive the same data or different data from multiple TRPs. Multiple TRPs can be divided into ideal backhaul and non-ideal backhaul. In the case of non-ideal backhaul, there is a large delay in the exchange of information between multiple TRPs, which is more suitable for independent scheduling. Acknowledgement (ACK) / non-acknowledgement (NACK) and channel state information (CSI) reports are fed back to each TRP separately. It is usually applicable to the scheduling of multiple downlink control information (DCI), that is, each TRP sends its own physical downlink control channel (PDCCH), each PDCCH schedules its own physical downlink shared channel (PDSCH), and multiple control resource sets (CORESET) configured for the UE are associated with different radio resource control (RRC) parameters control resource set pool index (CORESETPoolIndex), corresponding to different TRPs. The multiple PDSCHs scheduled by multiple DCIs may be non-overlapping, partially overlapping, or completely overlapping in time-frequency resources. On the overlapping time-frequency resources, each TRP is independently precoded according to its own channel, and the UE receives multi-layer data streams belonging to multiple PDSCHs in a non-coherent joint transmission (NCJT) manner.

[0062] In an ideal backhaul, multiple TRPs can exchange scheduling information and UE feedback information in real time. In addition to scheduling multiple PDSCHs through multiple DCIs as described above, a single DCI can also schedule PDSCHs, including the following transmission schemes:

[0063] Space Division Multiplexing (SDM): NCJT transmission of different data layers of the same transport block (TB) from different TRPs;

[0064] Frequency Division Multiplexing (FDM): The same TB and the same Redundancy Version (RV) are mapped to different frequency domain resources and sent from different TRPs, or different RVs of the same TB are mapped to different frequency domain resources and sent from different TRPs.

[0065] Time-Division Multiplexing (TDM): Multiple repetitions of different RVs of the same TB come from different TRPs, such as repetitions within one time slot or repetitions across multiple time slots.

[0066] At this time, ACK / NACK feedback and CSI report can be fed back to any TRP.

[0067] 3. CSI report framework

[0068] The CSI report configuration (CSI-ReportConfig) mainly includes the following aspects:

[0069] CSI resource setting: At least one CSI resource for channel measurement needs to be configured;

[0070] Report configuration type (reportConfigType): indicates the time domain behavior of CSI reporting;

[0071] Report frequency domain configuration (reportFreqConfiguration): indicates the frequency domain behavior of CSI reporting, that is, wideband reporting or narrowband reporting;

[0072] Report Quantity (reportQuantity): indicates the parameters included in the report, including none, cri-RI-PMI-CQI, cri-RI-i1, cri-RI-i1-CQI, cri-RI-CQI, cri-RSRP, ssb-Index-RSRP and cri-RI-LI-PMI-CQI.

[0073] Codebook Configuration (codebookConfig): indicates the reported codebook type, which includes Type I and Type II.

[0074] Time restriction for channel measurements (timeRestrictionForChannelMeasurements): indicates whether the time domain occasion for CSI measurement is restricted.

[0075] 4. Concept of CSI report sub-configuration

[0076] A CSI-ReportConfig contains multiple sub-configs, each of which corresponds to a spatial domain pattern (SD pattern).

[0077] The enhanced solution is that when a CSI-ReportConfig is configured with L sub-configs, N sub-config CSI reports are activated through layer 1 (L1) / layer 2 (L2) signaling.

[0078] 5. Release 18 (R18) multi-CSI enhancement

[0079] In the R18 network energy saving project, the UE is supported to report multiple sub-config CSI reports belonging to the same CSI report config. Specifically, it can be described as the network side triggering the UE to report N sub-configuration CSI reports in the L configured sub-configurations belonging to the same csi-ReportConfig. The periodic multi-CSI report takes effect once the RRC is configured. The semi-static and non-periodic multi-CSI report is triggered by the DCI and the Media Access Control Control Element (MAC CE).

[0080] Under the R18 framework, for the sub-configuration of Type I shutdown, it includes a port subset indication, etc., where the scope of application of the port subset indication is all resources in the resource set for channel measurement in the resource setting associated with the csi-ReportConfig to which the sub-configuration belongs; for the sub-configuration of Type II shutdown, it includes a set of non-zero power (None Zero Power, NZP) channel state information reference signal (Channel State Information Reference Signal, CSI-RS) resources, the CSI corresponding to the sub-configuration is calculated according to the NZP CSI-RS resources contained in the sub-configuration.

[0081] The following is an example of a sub-configuration that combines air domain and power domain:

[0082] Example 1: CSI-ReportSubConfiguration::=SEQUENCE{

[0083] CSI-ReportSubConfigId=1

[0084] port-subsetIndicator

[0085] RI restriction

[0086] codebookSubsetRestriction

[0087] powerControlOffset}

[0088] The sub-configuration Id = 1 corresponds to an adaptation pattern for the spatial domain (SD) and power domain (PD), which contains parameters for sub-configuration CSI calculation in the case of spatial domain Type I shutdown and power domain adaptation. The remaining required parameters refer to the csi-ReportConfig to which the sub-configuration belongs.

[0089] Example 2: CSI-ReportSubConfiguration::=SEQUENCE{

[0090] CSI-ReportSubConfigId=2

[0091] NZP-CSI-RS-ResourceList

[0092] powerControlOffset}

[0093] The sub-configuration Id=2 corresponds to an SD and PD adaptation pattern, which includes parameters and CSI-RS resources for sub-configuration CSI calculation in the case of spatial domain Type II shutdown and power domain adaptation.

[0094] 6. Non-Coherent Joint Transmission (NCJT) CSI Reporting

[0095] The seventeenth version (Rel-17) enhances the CSI-RS configuration and CSI feedback of multiple TRPs. In order to measure the channels of two TRPs, the multiple non-zero power CSI-RS resources (NZP CSI-RS resources) contained in a CSI resource set (CSI resource set) are divided into two resource groups (resource groups) to distinguish which TRP the CSI-RS resource comes from. In addition, the network can also configure at least one CSI-RS resource pair, where the two CSI-RS resources in the resource pair come from two resource groups respectively. Based on the above configuration, the UE can calculate the NCJT CSI assuming that the two CSI-RS resources contained in each CSI-RS resource pair are transmitted in NCJT mode, and can also calculate the single TRP (Single TRP, s-TRP) CSI assuming that the CSI-RS resources in the two groups are transmitted in STRP mode. The network can configure two CSI feedback modes: the UE reports one NCJT CSI and X=0, 1, 2 STRP CSIs, or reports the best CSI between the NCJT CSI and the STRP CSI. Rel-17's NCJT CSI feedback is an enhancement of the Type I codebook. NCJT CSI feedback includes two precoding matrix indicators (PMIs), two rank indicators (RIs), one for each of the two CSI-RS resources, and a channel quality indicator (CQI) assumed by NCJT. Because the two TRPs cannot be precisely synchronized and the transmitted signals cannot guarantee a fixed phase relationship, the NCJT PMI does not include the amplitude and phase information between the two PMIs.

[0096] R17 NCJT CSI reporting uses different resource groups (resource groups) within the same resource set to distinguish between two TRPs. One resource from each resource group can be configured to form a Channel Measurement Resource (CMR) pair:

[0097] For example, as shown in Figure 3, two CMR groups (i.e., CMR groups) belonging to the same CMR set (i.e., CMR set) represent two TRPs respectively, where CMR1 and CMR3 represent a CMR pair, which is used to calculate NCJT CSI;

[0098] One configuration is shown below: the CMR pair is configured in the information element (IE) NZP-CSI-RS-ResourceSet:

[0099] CMRGroupingAndPairing-r17::=SEQUENCE{

[0100] nrofResourcesGroup1-r17 INTEGER(1..7),

[0101] nrofResourcesGroup2-r17 INTEGER(1..7),

[0102] pair1OfNZP-CSI-RS-r17 NZP-CSI-RS-Pairing-r17 OPTIONAL,--Need R

[0103] pair2OfNZP-CSI-RS-r17 NZP-CSI-RS-Pairing-r17 OPTIONAL--Need R

[0104] }

[0105] NZP-CSI-RS-Pairing-r17::=SEQUENCE{

[0106] nzp-CSI-RS-ResourceId1-r17 NZP-CSI-RS-ResourceSetId,

[0107] nzp-CSI-RS-ResourceId2-r17 NZP-CSI-RS-ResourceSetId

[0108] }

[0109] The number of resources in resource group 1 and resource group 2 is configured. Assume that the number of resources in resource group 1 is A and the number of resources in resource group 2 is B. Then, the first A resources configured in the resource setting associated with the CSI report setting belong to resource group 1, and the subsequent B resources belong to resource group 2.

[0110] The specific resources reported by NCJT CSI are shown in the following example. In this example, the channel measurement resource set (Resource Set for channel measurement) configured through RRC includes two resource groups. Resource group 1 includes resource 1 / 2 / 3, and resource group 2 includes resource 4 / 5 / 6. The two resource groups correspond to two TRPs respectively. The protocol stipulates that at most two CMR pairs can be configured. In this example, only one CMR pair is configured, that is, resource 1 and resource 4 are configured as a CMR pair, as shown in Figure 4.

[0111] For NCJT CSI, if there is only one CMR pair, the NCJT CSI does not need to report the CSI reference signal resource indicator (CSI Reference Signal Resource Indicator, CRI); if there are two CMR pairs, the role of the CRI in the NCJT CSI is to distinguish one CMR pair among the two CMR pairs, because the final NCJT CSI can only be the CSI for a single CMR pair.

[0112] The role of the RRC parameter sharing CMR (sharedCMR) is to inform the UE whether the resources in the CMR pair can be used to calculate the CSI of the s-TRP. If sharedCMR is configured, the resources in the CMR pair can be used to calculate the CSI of the s-TRP.

[0113] If 'sharedCMR' is not configured, then:

[0114] M1 is the number of resources in resource group 1 excluding CMR pairs. In this example, M1 = 2.

[0115] M2 is the number of resources in resource group 2 excluding CMR pairs. In this example, M2 = 2.

[0116] If 'sharedCMR' is configured, that is, the resources in the resource pair can also be used to calculate NCJT CSI, then:

[0117] M1=K1 (number of resources in resource group 1)=3, M2=K2 (number of resources in resource group 2)=3,

[0118] For s-TRP CSI, the respective CRI is selected from the resource group of the respective TRP;

[0119] In the NCJT CSI report, SharedCMR, csi-ReportMode, and the number of single TRP CSIs reported when the CSI reporting mode is the first mode (numberOfSingleTRP-CSI-Mode1) are all configured in csi-ReportConfig, where:

[0120] sharedCMR is used for CMR pair configuration and for calculating NCJT CSI;

[0121] csi-ReportMode is used to configure the CSI reporting mode. Mode 1 refers to reporting NCJT CSI and X s-TRP CSIs, where X = the value of numberOfSingleTRP-CSI-Mode1; mode 2 refers to reporting the best CSI between NCJT CSI and s-TRP CSI.

[0122] The channel state information transmission method provided in the embodiments of the present application is described in detail below with reference to some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0123] Please refer to FIG5 , which is a flowchart of a channel state information transmission method provided in an embodiment of the present application. The method can be executed by a terminal, as shown in FIG5 , and includes the following steps:

[0124] Step 501: The terminal receives CSI reporting configuration;

[0125] Step 502: The terminal reports a CSI report according to the CSI reporting configuration;

[0126] The resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be associated with at least one sub-configuration, the resources associated with the CSI reporting configuration are configured as N resource groups; N is an integer greater than or equal to 2.

[0127] For example, the CSI reporting configuration (CSI-ReportConfig) may include, but is not limited to, at least one of a CSI resource configuration (CSI resource setting), a report configuration type (reportConfigType), a report frequency domain configuration (reportFreqConfiguration), a report quantity (reportQuantity), a codebook configuration (codebookConfig), and a time restriction for channel measurements (timeRestrictionForChannelMeasurements). The sub-configuration may include, but is not limited to, at least one of a port subset indication, an RI restriction (RI restriction), a codebook subset restriction (CBSR), a power offset value, and at least one set of NZP CSI-RS resources (NZP-CSI-RS-ResourceList). It should be noted that the sub-configuration of this embodiment may also be expressed as sub-configuration, sub-config, or csi-ReportSubconfig.

[0128] In one embodiment, the resources associated with the above-mentioned CSI reporting configuration are configured as N resource groups, and the CSI reporting configuration is associated with at least one sub-configuration (sub-config). In this case, the above-mentioned CSI report may include the CSI of the at least one sub-configuration. It should be noted that the above-mentioned N resource groups correspond to N TRPs, and the CSI of each sub-configuration may include at least one of multi-TRP (i.e., M-TRP) CSI and single TRP (i.e., s-TRP) CSI. It should also be noted that, in the case where the CSI reporting configuration is associated with at least two sub-configurations, the above-mentioned CSI may include the CSI of at least one of the above-mentioned at least two sub-configurations. Exemplarily, the above-mentioned multi-TRP may be NCJT CSI.

[0129] In another embodiment, the terminal does not expect the CSI reporting configuration to be associated with at least one sub-configuration when the resources associated with the CSI reporting configuration are configured as N resource groups, or the terminal does not expect the resources associated with the CSI reporting configuration to be configured as N resource groups when the CSI reporting configuration is associated with at least one sub-configuration, that is, the network-side device is not allowed to simultaneously configure the resources associated with the CSI reporting configuration to be configured as N resource groups and the CSI reporting configuration to be associated with at least one sub-configuration. Specifically, in the case where the resources associated with the above-mentioned CSI reporting configuration are configured as N resource groups, the above-mentioned CSI report may include at least one of M-TRP CSI and s-TRP CSI; in the case where the above-mentioned CSI reporting configuration is associated with at least one sub-configuration, the above-mentioned CSI report may include CSI of at least one sub-configuration.

[0130] In the channel state information transmission method provided by the embodiment of the present application, the terminal receives a CSI reporting configuration and reports a CSI report according to the CSI reporting configuration, wherein the resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration, that is, in the embodiment of the present application, when the terminal simultaneously supports the CSI reporting of at least one sub-config in a CSI report config and the CSI reporting of multiple TRPs, the terminal can be configured to report multiple TRP CSI and single TRP CSI in one sub-config, which is conducive to assisting the network side device to make a decision on shutting down airspace-related equipment (for example, an antenna panel or TRP, etc.); or, in the embodiment of the present application, when the terminal simultaneously supports a CSI report config and CSI reporting of multiple TRPs, it is not expected that the resources associated with the CSI reporting configuration are configured as N resource groups and that the CSI reporting configuration is associated with at least one sub-configuration, or it is not expected that the resources associated with the CSI reporting configuration are configured as N resource groups when the CSI reporting configuration is associated with at least one sub-configuration. This is not only beneficial to reducing the complexity of the CSI reporting configuration, but also beneficial to reducing the complexity of CSI reporting on the terminal side.

[0131] Optionally, the sub-configuration includes at least one of the following:

[0132] A first identifier, used to indicate the resource group associated with the sub-configuration;

[0133] A second identifier is used to indicate a transmitting and receiving point TRP associated with the sub-configuration;

[0134] Port subset indication (i.e., port-SubsetIndicator);

[0135] Codebook subset restriction CBSR;

[0136] Rank indicates RI limit;

[0137] At least one set of channel state information reference signal CSI-RS resources;

[0138] Power offset value;

[0139] Channel measurement resource CMR pair configuration information;

[0140] CSI reporting mode;

[0141] The number of single TRP CSIs reported in the first CSI reporting mode.

[0142] In this embodiment, the above-mentioned first identifier is used to indicate the resource group associated with the sub-configuration or the resource scope of the sub-configuration. For example, if the above-mentioned first identifier indicates resource group 1, the resource group associated with the above-mentioned sub-configuration is resource group 1; if the above-mentioned first identifier indicates resource group 1 and resource group 2, the resource groups associated with the above-mentioned sub-configuration are resource group 1 and resource group 2.

[0143] The above-mentioned second identifier is used to indicate the TRP associated with the sub-configuration. For example, the above-mentioned second identifier may include but is not limited to at least one of the following items: TRP identifier (TRP Identifier, TRP ID), control resource set pool index (i.e., CoresetPoolIndex), transmission configuration indication (Transmission Configuration Indication, TCI) state (i.e., TCI state), TCI state group identifier (i.e., TCI state group Id).

[0144] The at least one group of CSI-RS resources may be, for example, at least one group of NZP CSI-RS resources (i.e., a list of NZP CSI-RS resources). It should be noted that the at least one group of NZP CSI-RS resources may also be expressed as at least one resource list (resourceList), at least one NZP-CSI-RS resource list (NZP-CSI-RS-ResourceList), or at least one NZP CSI-RS Resource List, etc.

[0145] The above power offset value (ie, powerOffset) may also be referred to as a delta power control offset value (ie, deltapowerControlOffset).

[0146] The configuration information of the CMR pair (i.e., CMR Pair) is used to configure at least one CMR pair. For example, the CMR pair configuration information may include CMR pairing information (i.e., CMR pairing). In some optional embodiments, the sub-configuration may further include a shared CMR (shared CMR) to indicate whether resources in the CMR pair can be used to calculate s-TRP CSI.

[0147] The above-mentioned CSI reporting mode (i.e., csi-ReportMode) is used to configure the CSI reporting mode. For example, mode1 refers to reporting NCJT CSI and X s-TRP CSIs, where X is equal to the number of single TRP CSIs reported in the first CSI reporting mode (i.e., numberOfSingleTRP-CSI-Mode1); mode2 refers to reporting the best CSI between NCJT CSI and s-TRP CSI.

[0148] In some optional embodiments, the three parameters (i.e., port-subset indicator), CBSR, and RI limit) are parameters related to a Type I shutdown; and the at least one group of CSI-RS resources are parameters related to a Type II shutdown. Furthermore, the port-subset indicator, CBSR, and RI limit may be configured separately for each TPR, i.e., the sub-configuration includes N port-subset indicators, N CBSRs, and N RI limits; or, a group of CSI-RS resources may be configured separately for each TPR, i.e., the sub-configuration includes N groups of CSI-RS resources.

[0149] Optionally, the first identifier includes a bitmap for indicating a resource group associated with the sub-configuration;

[0150] or,

[0151] The first identifier includes a resource group identifier of a resource group associated with the sub-configuration.

[0152] In one embodiment, the resource groups associated with a sub-configuration may be indicated by a bitmap. For example, '01' indicates that the sub-configuration is associated with the first resource group (resource group) associated with the CSI reporting configuration, '10' indicates that the sub-configuration is associated with the second resource group associated with the CSI reporting configuration, and '11' indicates that the sub-configuration is associated with both resource groups associated with the CSI reporting configuration.

[0153] In another embodiment, the resource group associated with the sub-configuration can be indicated by the resource group identifier. For example, if the above-mentioned first identifier includes the identifier of resource group 1, the resource group associated with the above-mentioned sub-configuration is resource group 1; if the above-mentioned first identifier includes the identifier of resource group 1 and the identifier of resource group 2, the resource groups associated with the above-mentioned sub-configuration are resource group 1 and resource group 2.

[0154] Optionally, the subconfiguration includes N groups of CSI-RS resources, and each group of CSI-RS resources includes at least one CSI-RS resource of one resource group among the N resource groups associated with the CSI reporting configuration, and the N groups of CSI-RS resources correspond to the N resource groups respectively;

[0155] or,

[0156] The sub-configuration includes a group of CSI-RS resources, and the number of resources in the group of CSI-RS resources is the same as the number of resources associated with the CSI reporting configuration;

[0157] or,

[0158] The sub-configuration includes a set of CSI-RS resources, and the set of CSI-RS resources includes at least one resource of each of the N resource groups.

[0159] In one embodiment, each sub-configuration may include N groups of CSI-RS resources, and the N groups of CSI-RS resources correspond to the N resource groups respectively. Each of the above-mentioned groups of CSI-RS resources includes at least one CSI-RS resource of one resource group among the N resource groups, that is, a group of CSI-RS resources is configured for each TPR respectively, and a group of CSI-RS resources configured for each TRP includes at least one resource of the resource group associated with the TRP. For example, the resource groups associated with the CSI reporting configuration include: group1 and group2, wherein group1 includes resource1, resource2, resource 3 and resource 4, and group2 includes resource 6, resource 7, resource 8 and resource 9, then the resource configured for the first group of CSI-RS resources in the sub-configuration may be a subset of group1, and the resource configured for the second group of CSI-RS resources in the sub-configuration may be a subset of group2.

[0160] For another example, the resources associated with the CSI reporting configuration are configured as two resource groups, namely group1 and group2, and two NZP-CSI-RS-ResourceLists are configured in the sub-configuration, covering the two resource groups in the CSI reporting configuration respectively, and the resources in these two NZP-CSI-RS-ResourceLists respectively include subsets of different resource groups in the CSI reporting configuration. For example, group1 is 3 resources and group2 is 2 resources, then the number of resources in NZP-CSI-RS-ResourceList1 in the sub-configuration is less than or equal to 3, and the resources in NZP-CSI-RS-ResourceList1 are a subset of the resources in group1, the number of resources in NZP-CSI-RS-ResourceList2 in the sub-configuration is less than or equal to 2, and the resources in NZP-CSI-RS-ResourceList2 are a subset of the resources in group2.

[0161] In another embodiment, each sub-configuration may include a group of CSI-RS resources, where the number of resources in the group of CSI-RS resources is the same as the number of resources associated with the CSI reporting configuration. The number of resource groups in each sub-configuration may also be the same as the number of resource groups associated with the CSI reporting configuration. For example, if the number of resources associated with the CSI reporting configuration is 5, then the number of resources included in the group of CSI-RS resources in the sub-configuration is also 5, and the number of resource groups in the sub-configuration is also the same as the number of resource groups associated with the CSI reporting configuration.

[0162] For another example, the resource groups associated with the CSI reporting configuration include group1 and group2, where group1 includes resource1, resource2, resource 3, and resource 4, and group2 includes resource 6, resource 7, resource 8, and resource 9. The sub-configuration includes a group of CSI-RS resources that may include resource10, resource11, resource 12, resource 13, resource 14, resource 15, resource 16, and resource 17, where the number of resources in group1 in the sub-configuration is 4, and the number of resources in group2 in the sub-configuration is 4.

[0163] For another example, the resources associated with the CSI reporting configuration are configured as two resource groups, namely group1 and group2. The sub-configuration includes an NZP-CSI-RS-ResourceList, and the number of resources in the NZP-CSI-RS-ResourceList in the sub-configuration is equal to the number of resources associated with the CSI reporting configuration. For example, the number of resources associated with the CSI reporting configuration is 5, where the first 3 resources correspond to group1 and the last 2 resources correspond to group2. Then the NZP-CSI-RS-ResourceList in the sub-configuration is also configured with 5 resources, and the first 3 resources correspond to group1, and the last 2 resources correspond to group2.

[0164] It should be noted that the resources within the set of CSI-RS resources included in the above sub-configuration may be the same as the resources associated with the CSI reporting configuration, or may be different from the resources associated with the CSI reporting configuration.

[0165] In some optional embodiments, the arrangement order of the resources in the group of CSI-RS resources can be the same as the arrangement order of the resources associated with the CSI reporting configuration, so that based on the number of resources in each resource group in the sub-configuration and the arrangement order of the resources associated with the CSI reporting configuration, it can be quickly determined to which resource group the resources in the group of CSI-RS resources belong.

[0166] In another embodiment, each sub-configuration includes a group of CSI-RS resources, where the group of CSI-RS resources includes at least one resource from each of the N resource groups. For example, the resource groups associated with the CSI reporting configuration include group 1 and group 2, where group 1 includes resource 1, resource 2, resource 3, and resource 4, and group 2 includes resource 6, resource 7, resource 8, and resource 9. The group of CSI-RS resources included in the sub-configuration may include a subset of group 1 and a subset of group 2. For example, the group of CSI-RS resources included in the sub-configuration includes resource 1, resource 2, resource 6, and resource 8. The UE can determine, based on the CSI reporting configuration, that resource 1 and resource 2 correspond to Group 1, and resource 6 and resource 9 correspond to Group 2.

[0167] For another example, the resources associated with the CSI reporting configuration are configured as two resource groups, namely group1 and group2, and group1 includes resource1, resource2 and resource3, group2 includes resource4 and resource5, and the sub-configuration includes an NZP-CSI-RS-ResourceList. The resource configuration of the CSI reporting configuration (resource The resource set of the CSI reporting configuration includes the resources of the NZP-CSI-RS-ResourceList of all sub-configurations. For example, the resource set associated with the resource configuration of the CSI reporting configuration is the full set of the NZP-CSI-RS-ResourceList of all sub-configurations, and the resources in the NZP-CSI-RS-ResourceList included in the sub-configuration are a subset of the resources associated with the CSI reporting configuration. For example, if the NZP-CSI-RS-ResourceList is configured with resource1, resource2 and resource4, the terminal can know from the CSI reporting configuration that resource1 and resource2 of the NZP-CSI-RS-ResourceList belong to the resources of group1, and resource4 of the NZP-CSI-RS-ResourceList belongs to the resources of group2.

[0168] Optionally, the CMR pair configuration information includes CMR pairing information; or, the CMR pair configuration information includes an identifier of a CMR pair; or, the CMR pair configuration information includes a sequence number of the CMR pair among all CMR pairs configured in the CSI reporting configuration.

[0169] In one embodiment, at least one CMR pair may be configured using CMR pairing information. For example, when N is 2, at least one CMR pair may be configured using CMR pairing information, such as non-zero power CSI-RS pairing information (NZP-CSI-RS-Pairing). For example, a maximum of two CMR pairs may be configured. Taking Release 17 (R17) as an example, an example of a CMR pair configuration method may be as follows:

[0170] "CMRGroupingAndPairing-r17::=SEQUENCE{

[0171] nrofResourcesGroup1-r17 INTEGER(1..7),

[0172] nrofResourcesGroup2-r17 INTEGER(1..7),

[0173] pair1OfNZP-CSI-RS-r17 NZP-CSI-RS-Pairing-r17 OPTIONAL,--Need R

[0174] pair2OfNZP-CSI-RS-r17 NZP-CSI-RS-Pairing-r17 OPTIONAL--Need R

[0175] }

[0176] NZP-CSI-RS-Pairing-r17::=SEQUENCE{

[0177] nzp-CSI-RS-ResourceId1-r17 NZP-CSI-RS-ResourceSetId,

[0178] nzp-CSI-RS-ResourceId2-r17 NZP-CSI-RS-ResourceSetId".

[0179] In another embodiment, at least one CMR pair may be indicated by an identifier of a CMR pair; or at least one CMR pair may be indicated by a sequence number of the CMR pair among all CMR pairs configured in the CSI reporting configuration. For example, if the CSI reporting configuration has configured all possible CMR pairs, the sub-configuration may include the ID of the CMR pair or the sequence number of the CMR pair among all CMR pairs configured in the CSI reporting configuration, for example, X, to indicate that the CMR pair used in the sub-configuration is the Xth CMR pair configured in the CSI reporting configuration, or the CMR pair with an ID of X.

[0180] Optionally, in a case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration does not include the at least one group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups among the resources associated with the CSI reporting configuration associated with the sub-configuration;

[0181] or,

[0182] In a case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes N groups of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from two groups of CSI-RS resources in the N groups of CSI-RS resources;

[0183] or,

[0184] In the case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes a group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups in the group of CSI-RS resources.

[0185] In one embodiment, when the sub-configuration includes the CMR pair configuration information, if the sub-configuration does not include the at least one group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups among the resources associated with the CSI reporting configuration associated with the sub-configuration. That is, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups associated with the CSI reporting configuration. For example, if the resource groups associated with the CSI reporting configuration include group 1 and group 2, then one resource of each CMR pair configured by the CMR pair configuration information is from group 1, i.e., a resource of group 1, and the other resource is from group 2, i.e., a resource of group 2.

[0186] In another embodiment, when the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes N groups of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from two groups of CSI-RS resources among the N groups of CSI-RS resources. For example, if the sub-configuration includes a first group of CSI-RS resources and a second group of CSI-RS resources, one resource of each CMR pair configured by the CMR pair configuration information is a resource of the first group of CSI-RS resources, and the other resource of each CMR pair configured by the CMR pair configuration information is a resource of the second group of CSI-RS resources.

[0187] For another example, the resource groups associated with the CSI reporting configuration include group1 and group2, group1 includes resource1, resource2, and resource3, and group2 includes resource4 and resource5; the sub-configuration includes two NZP-CSI-RS-ResourceLists, each covering the two resource groups in the CSI reporting configuration, and the resources in these two NZP-CSI-RS-ResourceLists each include a subset of a different resource group in the CSI reporting configuration. For example, if group1 contains 3 resources and group2 contains 2 resources, then the number of resources in NZP-CSI-RS-ResourceList1 in the sub-configuration is less than or equal to 3 and is a subset of the resources in group1, and the number of resources in NZP-CSI-RS-ResourceList2 included in the sub-configuration is less than or equal to 2 and is a subset of the resources in group2. If resource1 and resource4 associated with the CSI reporting configuration form a CMR pair, resource2 and resource15 form a CMR pair, the sub-configuration's NZP-CSI-RS-ResourceList1 includes resource1 and resource2, and the sub-configuration's NZP-CSI-RS-ResourceList2 includes resource4, then the terminal, based on the CSI reporting configuration, can understand that resource1 and resource4 in the sub-configuration form a CMR pair. It should be noted that in this example, the resources in the resource setting in the CSI reporting configuration are the full set of resources configured in all sub-configurations, and all possible CMR pairs must be configured in the CSI reporting configuration. This may exceed the current R17 limit (a maximum of two CMR pairs), i.e., multiple CMR pairs must be configured.

[0188] In another embodiment, when the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes a group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups in the group of CSI-RS resources. That is, the resources in each CMR pair configured by the CMR pair configuration information are resources of the group of CSI-RS resources, and one resource of each CMR pair is a resource belonging to one of the N resource groups in the group of CSI-RS resources, and the other resource of each CMR pair is a resource belonging to another resource group in the group of N resource groups in the group of CSI-RS resources. It should be noted that the group of CSI-RS resources included in the above sub-configuration includes resources of each resource group in the N resource groups.

[0189] For example, if a group of CSI-RS resources included in the sub-configuration includes a subset of group 1 and a subset of group 2, one resource of each CMR pair configured by the CMR pair configuration information is a resource of the subset of group 1, and another resource of each CMR pair configured by the CMR pair configuration information is a resource of the subset of group 2.

[0190] For another example, the resource groups associated with the CSI reporting configuration include group1 and group2, group1 includes resource1, resource2 and resource3, and group2 includes resource4 and resource5; the sub-configuration includes an NZP-CSI-RS-ResourceList, and the number of resources in the NZP-CSI-RS-ResourceList in the sub-configuration is equal to the number of resources associated with the CSI reporting configuration. That is, in this example, the number of resources associated with the CSI reporting configuration is 5, of which the first 3 resources correspond to group1 and the last 2 resources correspond to group2. Then the NZP-CSI-RS-ResourceList in the sub-configuration is also configured with 5 resources, and the first 3 resources correspond to group1, and the last 2 resources correspond to group2. If resource1 and resource4 associated with the CSI reporting configuration form a CMR pair, and resource2 and resource15 form a CMR pair, the sub-configuration's NZP-CSI-RS-ResourceList includes resource1, resource3, resource6, resource4, and resource8. In the sub-configuration, resource1 and resource4 form a CMR pair, and resource3 and resource8 form a CMR pair. It should be noted that in this example, there is no necessary connection between the resources in the resource setting in the CSI reporting configuration (i.e., the resources associated with the CSI reporting configuration) and the resources in the sub-configuration (i.e., the resources in the NZP-CSI-RS-ResourceList). However, based on the number of resources in group1 and group2 in the CSI reporting configuration, the sub-configuration can determine that the first three resources in the sub-configuration's NZP-CSI-RS-ResourceList correspond to TRP0 resources, and the last two resources correspond to TRP1 resources. Furthermore, in this example, a new CMR pair is configured in the sub-configuration. It should be noted that the above sub-configuration does not need to configure a new CMR pair. In this case, the terminal identifies which two resources in the NZP-CSI-RS-ResourceList are a CMR pair based on the pairing relationship of the CMR pairs configured in the CSI reporting configuration. In this example, if the sub-configuration does not configure a new CMR pair, the terminal can identify resource 1 and resource 4 in the NZP-CSI-RS-ResourceList as a CMR pair.

[0191] For another example, the resource groups associated with the CSI reporting configuration include group1 and group2, group1 includes resource1, resource2 and resource3, group2 includes resource4 and resource5, the resources associated with the CSI reporting configuration include the resources of all sub-configurations, for example, the resources associated with the CSI reporting configuration are the full set of resources of all sub-configurations, and the CMR pair of the CSI reporting configuration includes the CMR pairs of all sub-configurations, for example, the CMR pair of the CSI reporting configuration is the CMR pair of all sub-configurations The sub-configuration includes an NZP-CSI-RS-ResourceList. The resources in the NZP-CSI-RS-ResourceList in the sub-configuration are a subset of the resources associated with the CSI reporting configuration. If the NZP-CSI-RS-ResourceList includes resource1, resource2, and resource4, the terminal can know from the CSI reporting configuration that resource1 and resource2 in the NZP-CSI-RS-ResourceList are resources belonging to group1, and resource4 in the NZP-CSI-RS-ResourceList is a resource belonging to group2. If resource1 and resource4 in the resource set associated with the CSI reporting configuration are a CMR pair, and resource2 and resource5 are a CMR pair, the terminal can understand from the pairing relationship of the CMRs in the CSI reporting configuration that resource1 and resource4 are a CMR pair in the sub-configuration, and that resource1 and resource2 belong to group1, and resource4 belongs to group2. In this example, the sub-configuration does not need to configure a new CMR pair. The resources in the sub-configuration are a subset of the resources associated with the CSI reporting configuration. Therefore, the CMR pair corresponding to the sub-configuration is also a subset of the CMR pair corresponding to the CSI reporting configuration. In other words, the CSI reporting configuration must configure all the resources of all sub-configurations and all the CMR pairs of all sub-configurations.

[0192] Optionally, before the terminal reports the CSI report according to the CSI reporting configuration, the method further includes:

[0193] In a case where the subconfiguration includes a port subset indication, a CBSR, an RI limit, and a power offset value, the terminal calculates the CSI of the subconfiguration according to the following conditions: the port status of all CSI-RS resources associated with the CSI reporting configuration is the port status indicated by the port subset indication, the RI limit used for CSI calculation of the subconfiguration is the RI limit included in the subconfiguration, the CBSR used for CSI calculation of the subconfiguration is the CBSR included in the subconfiguration, and the power control offset value of each resource of all CSI-RS resources associated with the CSI reporting configuration is increased or decreased by the power offset value included in the subconfiguration;

[0194] or,

[0195] In a case where the subconfiguration includes at least one set of CSI-RS resources and a power offset value, the terminal calculates the CSI of the subconfiguration by using the at least one set of CSI-RS resources included in the subconfiguration as measurement resources and increasing or decreasing each resource power control offset value of the at least one set of CSI-RS resources included in the subconfiguration by the power offset value included in the subconfiguration;

[0196] or,

[0197] In a case where the subconfiguration includes a port subset indication, a CBSR, an RI limit, at least one group of CSI-RS resources, and a power offset value, the terminal calculates the CSI of the subconfiguration according to the following steps: using the at least one group of CSI-RS resources included in the subconfiguration as measurement resources, the port state of the at least one group of CSI-RS resources included in the subconfiguration being the port state indicated by the port subset indication, the RI limit used for CSI calculation of the subconfiguration being the RI limit included in the subconfiguration, the CBSR used for CSI calculation of the subconfiguration being the CBSR included in the subconfiguration, and the power control offset value of each resource in the at least one group of CSI-RS resources included in the subconfiguration being increased or decreased by the power offset value included in the subconfiguration;

[0198] or,

[0199] In a case where the sub-configuration includes a port subset indication, a CBSR, an RI limit, at least one set of CSI-RS resources, and a power offset value, the terminal performs at least one of the following:

[0200] Calculating the single TRP CSI for the first resource group according to the port status of the resources of the first resource group being the port status indicated by the port subset indication, the RI limit for calculating the single TRP CSI for the first resource group being the RI limit included in the subconfiguration, the CBSR for calculating the single TRP CSI for the first resource group being the CBSR included in the subconfiguration, and the power control offset value of each resource of the first resource group being increased or decreased by the power offset value included in the subconfiguration;

[0201] Calculating the single TRP CSI of the second resource group according to using the resources of the at least one group of CSI-RS resources as measurement resources of the single TRP CSI of the second resource group and increasing or decreasing the power control offset value of each resource of the at least one group of CSI-RS resources by the power offset value included in the subconfiguration;

[0202] calculating the multi-TRP CSI according to the port status of the resources of the first resource group being the port status indicated by the port subset indication, using the resources of the at least one group of CSI-RS resources as the measurement resources of the second resource group, the RI limit used for multi-TRP CSI calculation being the RI limit included in the subconfiguration or the RI limit included in the CSI reporting configuration, the CBSR used for the multi-TRP CSI calculation being the CBSR included in the subconfiguration or the CBSR included in the CSI reporting configuration, and the power control offset value of each resource of the first resource group and each resource of the at least one group of CSI-RS resources being increased or decreased by the power offset value included in the subconfiguration;

[0203] The first resource group and the second resource group are different resource groups of the N resource groups;

[0204] or,

[0205] In a case where the sub-configuration does not include CMR pair configuration information, the terminal calculates the multi-TRP CSI of the sub-configuration according to the CMR pair configuration information in the resource configuration associated with the CSI reporting configuration;

[0206] or,

[0207] In a case where the sub-configuration includes CMR pair configuration information, the terminal calculates the multi-TRP CSI of the sub-configuration according to the CMR pair configuration information included in the sub-configuration.

[0208] In one embodiment, when the sub-configuration includes a port subset indication, a CBSR, an RI limit, and a power offset value, the terminal may calculate the CSI of the sub-configuration according to or with reference to the port subset indication, CBSR, RI limit, and power offset value included in the sub-configuration. Specifically, the terminal may calculate the CSI of the sub-configuration according to the following conditions: the port status of all CSI-RS resources associated with the CSI reporting configuration is the port status indicated by the port subset indication, the RI limit used for CSI calculation of the sub-configuration is the RI limit included in the sub-configuration, the CBSR used for CSI calculation of the sub-configuration is the CBSR included in the sub-configuration, and the power control offset value of each resource of all CSI-RS resources associated with the CSI reporting configuration is increased or decreased by the power offset value included in the sub-configuration. That is, the port subset indication, CBSR, RI limit, and power offset value included in the sub-configuration are applied to the N resource groups associated with the CSI reporting configuration.

[0209] In another embodiment, when the subconfiguration includes at least one set of CSI-RS resources and a power offset value, the terminal calculates the CSI of the subconfiguration based on or with reference to the at least one set of CSI-RS resources and the power offset value included in the subconfiguration. Specifically, the terminal may calculate the CSI of the subconfiguration by using the at least one set of CSI-RS resources included in the subconfiguration as measurement resources and increasing or decreasing each resource power control offset value of the at least one set of CSI-RS resources included in the subconfiguration by the power offset value included in the subconfiguration.

[0210] In another embodiment, when the subconfiguration includes a port subset indication, a CBSR, an RI limit, at least one group of CSI-RS resources, and a power offset value, the terminal may calculate the CSI of the subconfiguration according to or with reference to the subconfiguration including the port subset indication, the CBSR, the RI limit, at least one group of CSI-RS resources, and the power offset value. Specifically, the terminal may calculate the CSI of the subconfiguration according to or with reference to using the at least one group of CSI-RS resources included in the subconfiguration as the measurement resources, the port state of the at least one group of CSI-RS resources included in the subconfiguration being the port state indicated by the port subset indication, the RI limit used for CSI calculation of the subconfiguration being the RI limit included in the subconfiguration, the CBSR used for CSI calculation of the subconfiguration being the CBSR included in the subconfiguration, and the power control offset value of each resource of the at least one group of CSI-RS resources included in the subconfiguration being increased or decreased by the power offset value included in the subconfiguration. That is, if the sub-configuration includes the relevant parameters of Type I shutdown (port subset indication, CBSR, RI limit), the relevant parameters of Type II shutdown (at least one set of CSI-RS resources) and the power offset value, the relevant parameters of Type I shutdown can be applied to a set of resources represented by Type II shutdown.

[0211] In another embodiment, when the sub-configuration includes a port subset indication, a CBSR, an RI restriction, at least one group of CSI-RS resources, and a power offset value, the terminal may calculate the CSI of the sub-configuration based on or with reference to the sub-configuration including the port subset indication, the CBSR, the RI restriction, at least one group of CSI-RS resources, and a power offset value.

[0212] Specifically, the terminal calculates the single TRP CSI (i.e., s-TRP CSI) of the first resource group according to the port status of the resources of the first resource group being the port status indicated by the port subset indication, the RI limit for single TRP CSI calculation of the first resource group being the RI limit included in the subconfiguration, the CBSR for single TRP CSI calculation of the first resource group being the CBSR included in the subconfiguration, and the power control offset value of each resource of the first resource group being increased or decreased by the power offset value included in the subconfiguration;

[0213] Alternatively, the terminal may calculate the s-TRP CSI of the second resource group by using the resources of the at least one group of CSI-RS resources as the measurement resources of the single TRP CSI of the second resource group and increasing or decreasing the power control offset value of each resource of the at least one group of CSI-RS resources by the power offset value included in the sub-configuration.

[0214] Alternatively, the terminal may calculate multi-TRP CSI (i.e., M-TRP CSI), for example, NCJT CSI, according to the port status of the resources of the first resource group being the port status indicated by the port subset indication, using the resources of the at least one group of CSI-RS resources as the measurement resources of the second resource group, the RI limit used for the multi-TRP CSI calculation being the RI limit included in the sub-configuration or the RI limit included in the CSI reporting configuration, the CBSR used for the multi-TRP CSI calculation being the CBSR included in the sub-configuration or the CBSR included in the CSI reporting configuration, and the power control offset value of each resource of the first resource group and each resource of the at least one group of CSI-RS resources being increased or decreased by the power offset value included in the sub-configuration. The above-mentioned use of the resources of at least one group of CSI-RS resources as the measurement resources of the second resource group can be understood as the resources used for multi-TRP CSI measurement in the second resource group being the resources of at least one group of CSI-RS resources.

[0215] It should be noted that the CSI of the above sub-configuration includes at least one of the single TRP CSI of the first resource group, the s-TRP CSI of the second resource group, and the multi-TRP CSI (ie, NCJT CSI).

[0216] Optionally, the method further includes: when the sub-configuration includes the first identifier, the terminal determining a resource group associated with the sub-configuration according to the first identifier. The resource group associated with the sub-configuration can be understood as a resource group applied by the sub-configuration.

[0217] The following examples illustrate the embodiments of the present application:

[0218] Example 1: The sub-configuration includes identifiers for distinguishing different TRPs or different resource groups.

[0219] In this example, a sub-configuration including a two-bit bitmap is used to distinguish different resource groups. Specifically, the UE is configured with 5 csi-ReportConfigs (i.e., CSI reporting configurations), each csi-ReportConfig has an associated resource set (i.e., resource set) for channel measurement, each resource set contains multiple resources, and the RRC configures these multiple resources into two resource groups, i.e., group1 and group2. Different resource groups represent different TRPs. In this example, the resource set contains 5 resources, the first 3 resources belong to group1, and the last two resources belong to group2.

[0220] csi-ReportConfig can configure multiple sub-configurations, that is, csi-ReportConfig is associated with multiple sub-configurations. In this example, csi-ReportConfig0, csi-ReportConfig2 to csi-ReportConfig 5 each contain one sub-configuration, and csi-ReportConfig1 includes three sub-configurations. Each sub-configuration contains a resource group bitmap (resourceGroupBitmap) to distinguish different TRPs or to distinguish different resource groups within the resource configuration associated with csi-ReportConfig. Among them, '01' indicates that the sub-configuration is associated with the resources of group1, corresponding to TRP0; '10' indicates that the sub-configuration is associated with the resources of group2, corresponding to TRP1; '11' indicates that the sub-configuration is associated with all resources in the resource set, corresponding to m-TRP, that is, corresponding to TRP0 and TRP1.

[0221] Specifically, the relevant content of the sub-configuration included in each csi-ReportConfig can be shown in Table 1.

[0222] Table 1

[0223] As shown in Table 1, the resourceGroupBitmap value in csi-ReportSubConfig0 is '01', which indicates that this subconfiguration is associated with the first resource group in the resource set associated with csiReportConfig0. That is, the subconfiguration applies to the resources in group1. In this case, the subconfiguration is updated with the port status of the resources in group1, as indicated by the port-subsetIndicator parameter, and the RI restriction and CBSR used for CSI calculation for the subconfiguration are updated to the corresponding parameter values ​​in the subconfiguration. The powerControlOffset (e.g., the Transmit Energy per Resource Element (EPRE) of the PDSCH relative to the CSI-RS) for the NZP CSI-RS resources in group1 is increased or decreased by deltapowerControlOffset to calculate the CSI for this subconfiguration.

[0224] The resourceGroupBitmap value contained in csi-ReportSubConfig1 is '01', which can be understood as associating this subconfiguration with the first resource group in the resource set associated with csiReportConfig1. That is, the subconfiguration applies to the resources in group1. In this case, the subconfiguration calculates the CSI for this subconfiguration by using its NZP-CSI-RS-ResourceList as the measured resource and increasing or decreasing the powerControlOffset of all resources by deltapowerControlOffset.

[0225] The resourceGroupBitmap value in csi-ReportSubConfig2 is '10', which indicates that this subconfiguration is associated with the second resource group in the resource set associated with csiReportConfig1. That is, the subconfiguration applies to the resources in group2. In this case, the port status of the resources in group2 is updated to the port up / down state indicated by port-subsetIndicator. The RI restriction and CBSR used for the subconfiguration's CSI calculation are updated to the corresponding parameter values ​​in the subconfiguration. The powerControlOffset of the resources in group2 is increased or decreased by deltapowerControlOffset to calculate the CSI for this subconfiguration.

[0226] The resourceGroupBitmap value contained in csi-ReportSubConfig3 is '10', which can be understood as the sub-configuration being associated with the second resource group in the resource set associated with csiReportConfig1, that is, the application scope of the sub-configuration is the resources in group2. In this case, the sub-configuration uses the NZP-CSI-RS-ResourceList in the sub-configuration as the measurement resource, and the powerControlOffset of all resources (i.e., the resources in the NZP-CSI-RS-ResourceList) is increased or decreased by deltapowerControlOffset to calculate the CSI of the sub-configuration.

[0227] The resourceGroupBitmap value contained in csi-ReportSubConfig4 is '11', which can be understood as associating this subconfiguration with the two resource groups in the resource set associated with csiReportConfig2. That is, the subconfiguration applies to the resources in both resource groups. In this case, the subconfiguration updates the port status of all resources in the resource set to the port up / down state indicated by port-subsetIndicator. The RI restriction and CBSR used for the subconfiguration's CSI calculation are updated to the corresponding parameter values ​​in the subconfiguration. The powerControlOffset of all resources in the resource set is increased or decreased by deltapowerControlOffset. Furthermore, the resource pairing used for NCJT CSI calculation continues to use the CMR pair configured in the CSI reporting configuration to calculate the CSI for this subconfiguration. The CSI for this subconfiguration is m-TRP CSI.

[0228] It should be noted that in this configuration, RI restriction, CBSR, and deltapowerControlOffset can each be configured as two, applied to resources in group 1 and group 2 respectively. The above CMR pairing follows the CMR pair configured in the CSI reporting configuration. This means that in the CSI reporting configuration, group 1 includes resources 1, 2, and 3, and group 2 includes resources 4 and 5. In the CSI reporting configuration, resource 1 and resource 4 are configured as one CMR pair, and resource 2 and resource 5 as another CMR pair. In the sub-configuration, resource 1 and resource 4 are still configured as one CMR pair, and resource 2 and resource 5 are configured as another CMR pair. However, the port status of the CMR pair in the sub-configuration is changed to the closed / open state indicated by the port-subsetIndicator.

[0229] It should also be noted that, in addition to using the CMR pair configured in the CSI reporting configuration, the CMR pair of the sub-configuration can also be directly configured in the sub-configuration.

[0230] The resourceGroupBitmap value contained in csi-ReportSubConfig5 is '11', which can be understood as the sub-configuration being associated with the two resource groups in the resource set associated with csiReportConfig3, that is, the application scope of the sub-configuration is the resources in the two resource groups. In this case, the sub-configuration is based on the NZP-CSI-RS-ResourceList1 in the sub-configuration as the measurement resource of TRP0 (group1), and the powerControlOffset of all resources of NZP-CSI-RS-ResourceList1 is increased or decreased by deltapowerControlOffset1, and NZP-CSI-RS-ResourceList2 is used as the measurement resource of TRP1 (group2), and the powerControlOffset of all resources of NZP-CSI-RS-ResourceList2 is increased or decreased by deltapowerControlOffset2 to calculate the CSI of the sub-configuration. The CSI of this sub-configuration is m-TRP CSI.

[0231] It should be noted that the power domain adaptation parameter deltapowerControlOffset can be configured with two parameters to be applied to the two resource groups mentioned above, such as csi-ReportSubConfig5, or only one deltapowerControlOffset can be configured, that is, the powerControlOffset values ​​of the two resource groups are increased or decreased by deltapowerControlOffset. Among them, deltapowerControlOffset can be equal to powerOffset in the RRC parameter.

[0232] It should also be noted that in this configuration, the resources in NZP-CSI-RS-ResourceList 1 are a subset of the resources in group 1 in the CSI reporting configuration. Assuming that resource 1 and resource 2 are included, the resources in NZP-CSI-RS-ResourceList 2 are a subset of the resources in group 2 in the CSI reporting configuration. Assuming that resource 4 is included, the CMR pair configured in the CSI reporting configuration is used. In this sub-configuration, resource 1 and resource 4 are one CMR pair.

[0233] It should also be noted that, in addition to directly using the CMR pair configured in the CSI reporting configuration, a new CMR pair can also be configured in the sub-configuration.

[0234] It should also be noted that if the resourceGroupBitmap value is '10' or '01', that is, if the sub-configuration is only applied to a single TRP or only to a single resource group, then only a single NZP CSI-RS resource list can be optionally configured in the sub-configuration, that is, the CSI calculation of the sub-configuration is performed according to the single NZP CSI-RS resource list; if the resourceGroupBitmap value is '11', that is, if the sub-configuration is applied to two resource groups or two TRPs, then one or two NZP CSI-RS resource lists can be configured. For the specific configuration method, please refer to the relevant description of the aforementioned embodiment, which will not be repeated here.

[0235] The resourceGroupBitmap value in csi-ReportSubConfig6 is '11', indicating that this subconfiguration is associated with the two resource groups in the resource set associated with csiReportConfig4. Because this subconfiguration contains parameters for both Type I and Type II shutdowns, it's necessary to further distinguish which TRPs or resource groups should use the Type I and Type II shutdown parameters. One possible implementation is to default to a Type I shutdown with Type I shutdown parameters for group 1 and a Type II shutdown with Type II shutdown parameters for group 2. Alternatively, default to a Type II shutdown with Type II shutdown parameters for group 1 and a Type I shutdown with Type I shutdown parameters for group 2. In this case, the UE updates the port status of the resources in group1 to the port on / off status indicated in port-subsetIndicator, updates the RI restriction and CBSR used for CSI calculation of the subconfiguration to the parameter values ​​of the corresponding parameters in the subconfiguration, increases or decreases the powerControlOffset of the resources in group1 by deltapowerControlOffset1, uses the resources of NZP-CSI-RS-ResourceList in the subconfiguration as the measurement resources corresponding to group2, and increases or decreases the powerControlOffset of all resources in NZP-CSI-RS-ResourceList by deltapowerControlOffset2 to calculate the CSI of the subconfiguration.

[0236] It should be noted that two power domain adaptation parameters deltapowerControlOffset can be configured to be applied to the two resource groups respectively, or only one deltapowerControlOffset can be configured, that is, the powerControlOffset values ​​of the two resource groups are increased or decreased by deltapowerControlOffset.

[0237] The resourceGroupBitmap value in csi-ReportSubConfig7 is '11', which means that this subconfiguration is associated with the two resource groups in the resource set associated with csiReportConfig5. This subconfiguration is identical to csi-ReportSubConfig6 in form, but the terminal interprets it differently. For csi-ReportSubConfig7, the UE understands that the relevant parameters of Type I shutdown are applied to the NZP-CSI-RS-ResourceList contained in the sub-configuration, that is, the UE uses the NZP-CSI-RS-ResourceList in the sub-configuration as the resource for m-TRP measurement, and the port status of the resources of the NZP-CSI-RS-ResourceList is updated to the port open / close status indicated in the port-subsetIndicator, the RI restriction and CBSR used for CSI calculation are updated to the parameter values ​​of the corresponding parameters in the sub-configuration, the powerControlOffset of the resources in group1 is increased or decreased by deltapowerControlOffset1, and the powerControlOffset of all resources in group2 is increased or decreased by deltapowerControlOffset2 to calculate the CSI of the sub-configuration, which is m-TRP CSI.

[0238] It should be noted that in this example, the UE may not report the CSI corresponding to the above csi-ReportConfig. In addition, the network side may trigger the CSI reporting of one or more sub-configurations of the csi-ReportConfig through DCI or MAC CE.

[0239] Example 2: Reuse the existing R18 framework to report m-TRP CSI.

[0240] In this example, the sub-configuration does not include identifiers for distinguishing different TRPs or identifiers for distinguishing different resource groups. Instead, the existing framework in R18 is used, but the interpretation of the framework is different.

[0241] Specifically, in this example, the UE is configured with four csi-ReportConfigs (i.e., CSI reporting configurations). Each csi-ReportConfig is associated with a resource set for channel measurement (i.e., a resource set). This resource set contains multiple resources, and the RRC configures these multiple resources into two resource groups, i.e., group 1 and group 2. Different resource groups represent different TRPs. In this example, the resource set contains five resources, the first three resources belong to group 1, and the last two resources belong to group 2.

[0242] csi-ReportConfig can configure one or more sub-configurations, that is, csi-ReportConfig is associated with multiple sub-configurations. In this example, each csi-ReportConfig contains one sub-configuration, and the parameters in each sub-configuration are applied to all resources associated with the csi-ReportConfig, that is, to both resource groups.

[0243] Specifically, the relevant contents of the four sub-configurations may be as shown in Table 2.

[0244] Table 2

[0245] For csi-ReportSubConfig0, the UE updates the port status of all resources in the two resource groups associated with csiReportConfig0 to the port on / off status indicated in port-subsetIndicator, and the RI restriction and CBSR used for the CSI calculation of the sub-configuration are updated to the parameter values ​​of the corresponding parameters in the sub-configuration, and the powerControlOffset of the resources of the two resource groups (for example, the EPRE of PDSCH relative to CSI-RS) is increased or decreased by deltapowerControlOffset to calculate the CSI of the sub-configuration. The sub-configuration CSI is m-TRP CSI.

[0246] It should be noted that two power domain adaptation parameters deltapowerControlOffset can be configured to be applied to the two resource groups respectively, or only one deltapowerControlOffset can be configured, that is, the powerControlOffset values ​​of the two resource groups are increased or decreased by deltapowerControlOffset.

[0247] Corresponding to csi-ReportSubConfig1, the UE uses the NZP-CSI-RS-ResourceList in the sub-configuration as the resource for m-TRP CSI measurement, and the powerControlOffset of all resources in the NZP-CSI-RS-ResourceList is increased or decreased by deltapowerControlOffset to calculate the CSI of the sub-configuration.

[0248] It should be noted that two power domain adaptation parameters deltapowerControlOffset can be configured to be applied to the two resource groups respectively, or only one deltapowerControlOffset can be configured, that is, the powerControlOffset values ​​of the two resource groups are increased or decreased by deltapowerControlOffset.

[0249] It should also be noted that the configuration method of NZP-CSI-RS-ResourceList in the sub-configuration can refer to the relevant description of the aforementioned embodiment and will not be repeated here.

[0250] For csi-ReportSubConfig2, the UE uses the NZP-CSI-RS-ResourceList in the sub-configuration as the resource for m-TRP CSI measurement. The port status of all resources in the NZP-CSI-RS-ResourceList in the sub-configuration is updated to the port open / close status indicated in port-subsetIndicator. The RI restriction and CBSR used for CSI calculation of the sub-configuration are updated to the parameter values ​​of the corresponding parameters in the sub-configuration, and the powerControlOffset of the resources of the two resource groups is increased or decreased by deltapowerControlOffset to calculate the CSI of the sub-configuration. The CSI of this sub-configuration is m-TRP CSI.

[0251] It should be noted that in this configuration, a subconfiguration contains both Type I shutdown-related parameters (CBSR, RI restriction, port-subsetIndicator) and Type II shutdown-related parameters (a list of CSI-RS resources). The UE understands that all Type I shutdown-related parameters are applied to the resources indicated by the Type II shutdown-related parameters contained in the subconfiguration, that is, all Type I shutdown-related parameters are applied to the resources configured by the subconfiguration. Alternatively, the UE may also understand that the Type I shutdown-related parameters are applied only to TRP 0, and the Type II shutdown-related parameters are applied only to TRP 1.

[0252] In this example, NZP-CSI-RS-ResourceList can be configured in the following three ways:

[0253] Method 1: Configure two NZP-CSI-RS-ResourceLists in the sub-configuration (such as sub-config3 in this example), which respectively cover the two resource groups in the CSI reporting configuration, and the resources in these two NZP-CSI-RS-ResourceLists come from subsets of different resource groups in the CSI reporting configuration. In this example, group1 includes 3 resources and group1 includes 2 resources. The number of resources in NZP-CSI-RS-ResourceList1 in the sub-configuration is less than or equal to 3, and the resources in NZP-CSI-RS-ResourceList1 are a subset of the resources in group1. The number of resources in NZP-CSI-RS-ResourceList2 is less than or equal to 2, and the resources in NZP-CSI-RS-ResourceList2 are a subset of the resources in group2.

[0254] Method 2: Only one NZP-CSI-RS-ResourceList is configured in the sub-configuration, and the number of resources in the NZP-CSI-RS-ResourceList in the sub-configuration is equal to the number of resources in the CSI reporting configuration. That is, in this example, the number of resources associated with the CSI reporting configuration is 5, of which the first 3 resources correspond to group 1 and the last 2 resources correspond to group 2. Then the NZP-CSI-RS-ResourceList in the sub-configuration is also configured with 5 resources, and the first 3 resources correspond to group 1, and the last 2 resources correspond to group 2.

[0255] Method 3: Only one NZP-CSI-RS-ResourceList is configured in the sub-configuration, and the NZP-CSI-RS-ResourceList is a subset of the resource set of the CSI reporting configuration. In other words, the resource set of the resource setting of the CSI reporting configuration includes the resources of all sub-configurations. For example, the resources of the resource set of the resource setting of the CSI reporting configuration are the full set of NZP-CSI-RS-ResourceLists of all sub-configurations, and are already grouped. Since the resources in the resource set have been grouped, that is, the resources of group 1 and group 2 have been divided, such as resource 1, resource 2, and resource 3 belong to group 1, resource 4 and resource 5 belong to group 2, and the resources in the NZP-CSI-RS-ResourceList configured in the sub-configuration are a subset of the resources configured in the CSI reporting configuration. For example, if NZP-CSI-RS-ResourceList is configured with resource 1, resource 2, and resource 4, the UE can know from the RRC configuration that resource 1 and resource 2 belong to group 1, and resource 4 belongs to group 2.

[0256] Optionally, before the terminal reports the CSI report according to the CSI reporting configuration, the method further includes:

[0257] When the subconfiguration includes the CSI reporting mode or the number of single-TRP CSIs reported when the CSI reporting mode is the first mode, the terminal determines the CSI to be reported for the subconfiguration according to the CSI reporting mode included in the subconfiguration or the number of single-TRP CSIs reported when the CSI reporting mode is the first mode;

[0258] or,

[0259] When the sub-configuration does not include a CSI reporting mode or the CSI reporting mode is the number of single-TRP CSIs reported in the first mode, the terminal determines the CSI to be reported for the sub-configuration according to the CSI reporting mode configured in the CSI reporting configuration or the number of single-TRP CSIs reported in the first mode;

[0260] or,

[0261] In a case where the sub-configuration does not include a CSI reporting mode or the number of single TRP CSIs reported in the first mode, the terminal determines the CSI to be reported for the sub-configuration based on the first identifier, wherein, in a case where the first identifier indicates one resource group, the CSI to be reported for the sub-configuration includes the single TRP CSI corresponding to the resource group indicated by the first identifier; and in a case where the first identifier indicates at least two resource groups, the CSI to be reported for the sub-configuration includes the multiple TRP CSIs corresponding to the at least two resource groups indicated by the first identifier.

[0262] In one embodiment, when the sub-configuration includes csi-ReportMode or numberOfSingleTRP-CSI-Mode1, the terminal determines the CSI to be reported by the sub-configuration according to the csi-ReportMode or numberOfSingleTRP-CSI-Mode1 included in the sub-configuration. For example, if the csi-ReportMode included in the sub-configuration indicates that the CSI reporting mode is mode1, and the value of numberOfSingleTRP-CSI-Mode1 included in the sub-configuration is M, then the sub-configuration needs to report NCJT CSI and M s-TRP CSIs; if the csi-ReportMode included in the sub-configuration indicates that the CSI reporting mode is mode2, then the sub-configuration needs to report the best CSI between NCJT CSI and s-TRP CSI.

[0263] In another embodiment, when the sub-configuration does not include csi-ReportMode or numberOfSingleTRP-CSI-Mode1, the terminal determines the CSI to be reported by the sub-configuration according to the csi-ReportMode or numberOfSingleTRP-CSI-Mode1 included in the CSI reporting configuration. For example, if the csi-ReportMode included in the CSI reporting configuration indicates that the CSI reporting mode is mode1, and the value of numberOfSingleTRP-CSI-Mode1 included in the CSI reporting configuration is K, then the sub-configuration needs to report NCJT CSI and K s-TRP CSIs; if the csi-ReportMode included in the CSI reporting configuration indicates that the CSI reporting mode is mode2, then the sub-configuration needs to report the best CSI between NCJT CSI and s-TRP CSI.

[0264] In another embodiment, when the sub-configuration does not include csi-ReportMode or numberOfSingleTRP-CSI-Mode1, the terminal determines the CSI to be reported by the sub-configuration based on the first identifier. For example, if resourceGroupBitmap indicates a single resource group, the UE reports the CSI of the s-TRP of the single resource group. If resourceGroupBitmap indicates two resource groups, the UE reports the m-TRP CSI. For another example, when the value of resourceGroupBitmap is '01' and '10', the CSI of the s-TRP of the corresponding resource group is reported. When the value of resourceGroupBitmap is '11', the m-TRP NCJT CSI corresponding to the CMR pair is reported.

[0265] Optionally, when the CSI report includes CSI of at least two sub-configurations, the CSI of the at least two sub-configurations are mapped in ascending order according to the identifiers of the at least two sub-configurations.

[0266] In this embodiment, the mapping order of the CSI of the at least two sub-configurations may be determined according to the identifiers of the at least two sub-configurations. Specifically, the CSI of the at least two sub-configurations are mapped in ascending order of the identifiers of the at least two sub-configurations. For example, if the CSI report includes CSI of csi-ReportSubConfig0 to csi-ReportSubConfig5, the CSI of csi-ReportSubConfig0 to csi-ReportSubConfig5 may be mapped in sequence.

[0267] Optionally, the CSI first part of the CSI report includes the CSI first parts of the CSI of the at least two sub-configurations, and the CSI first parts of the CSI of the at least two sub-configurations are mapped in ascending order according to the identifiers of the at least two sub-configurations.

[0268] In this embodiment, the first part of the CSI is part 1 CSI. For example, as shown in Table 3, for CSI part 1, part 1 CSIs of multiple csi-ReportSubconfigs in a single CSI report are arranged in the order of sub-configuration IDs.

[0269] Table 3

[0270] Optionally, the mapping order of the wideband CSI of the second part of the CSI of the CSI of the at least two sub-configurations is before the mapping order of the subband CSI of the second part of the CSI of the at least two sub-configurations, and the wideband CSI of the second part of the CSI of the CSI of the at least two sub-configurations is mapped in ascending order of the identifiers of the at least two sub-configurations;

[0271] The mapping order of the even subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is before the mapping order of the odd subband CSI of the second part of the CSI of the corresponding CSI of the at least two subconfigurations, and the even subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is mapped in ascending order according to the identifiers of the at least two subconfigurations, and the mapping order of the odd subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is mapped in ascending order according to the identifiers of the at least two subconfigurations.

[0272] In this embodiment, the second part of the CSI is CSI part2. The wideband CSI in the second part of the CSI is CSI part2wideband. The subband CSI in the second part of the CSI is CSI part2subband. The even subband CSI in the second part of the CSI is CSI part2evensubband. The even subband CSI in the second part of the CSI is CSI part2oddsubband.

[0273] For example, as shown in Table 3, for CSI part2 wideband, the CSI part2 wideband of multiple csi-ReportSubconfigs within a single CSI report are arranged in ascending order of subconfiguration ID; for CSI part2 subband, the CSI part2 even subband of multiple csi-ReportSubconfigs within a single CSI report are arranged in ascending order of subconfiguration ID, and the CSI part2 odd subband of multiple csi-ReportSubconfigs within a single CSI report are arranged in ascending order of subconfiguration ID, and in a single CSI report, the even subbands of all subconfigurations are arranged before the odd subbands of all subconfigurations.

[0274] Optionally, the CSI reporting configuration is associated with at least two sub-configurations, and the method further includes:

[0275] The terminal omits or discards part or all of the second CSI parts of the CSI of the at least two subconfigurations according to a mapping order of the second CSI parts of the CSI of the at least two subconfigurations;

[0276] The mapping order of the CSI second parts of the CSI of the at least two sub-configurations is determined according to the order of the identifiers of the at least two sub-configurations.

[0277] In this embodiment, when uplink resources are insufficient, the CSI Part 2 CSIs of multiple sub-configurations associated with the CSI reporting configuration are discarded according to the granularity or level of the sub-configuration. The CSI Part 2 even subbands of CSIs of different sub-configurations can have different priorities, and the CSI Part 2 odd subbands of CSIs of different sub-configurations can have different priorities.

[0278] For example, referring to Table 3, except for the upper broadband information, each row in Table 3 represents a priority level. When discarding, rows can be discarded or omitted one by one in order from bottom to top.

[0279] Optionally, when the CSI of the sub-configuration includes at least two CSIs, a mapping order of the even subband CSIs of the second part of the CSIs of the at least two CSIs is before a mapping order of the odd subband CSIs of the second part of the CSIs of the at least two CSIs;

[0280] The even subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol;

[0281] The odd subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol.

[0282] In this embodiment, the above-mentioned multi-TRP CSI, for example, NCJT CSI.

[0283] Exemplarily, in the case where the CSI of the sub-configuration includes NCJT CSI and s-TRP CSI, the CSI part2 even subband of the above-mentioned NCJT CSI and s-TRP CSI are arranged before the CSI part2 odd subband of the above-mentioned NCJT CSI and s-TRP CSI, and the CSI part2 even subband of the above-mentioned NCJT CSI and s-TRP CSI can be mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol, and the CSI part2odd subband of the above-mentioned NCJT CSI and s-TRP CSI can be mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol, for example, see Table 6.3.1.1.2-11A (Table 6.3.1.1.2-11A) in Protocol 38.212. 6.3.1.1.2-11A), Table 6.3.1.1.2-11B(Table6.3.1.1.2-11B), Table 6.3.2.1.2-5A(Table 6.3.2.1.2-5A), Table 6.3.2.1.2-5B(Table 6.3.2.1.2-5B), Table 6.3.2.1.2-5C(Table 6.3.2.1.2-5C), Table (Table 6.3.2.1.2-5D).

[0284] The following is an example to illustrate this embodiment:

[0285] If the csi-ReportMode of a subconfiguration is mode1 and the value of numberOfSingleTRP-CSI-Mode1 is 2, it means that the CSI of the subconfiguration contains three CSIs, namely one NCJT CSI and two s-TRP CSIs. That is, when the CSI of a subconfiguration contains multiple CSIs, it is necessary to adjust or add comments to the CSI mapping order table in the relevant protocol to explain how the multiple CSIs contained in multiple subconfigurations are arranged when the subconfiguration contains NCJT CSI and S-TRP CSI.

[0286] Method 1: In the table of the CSI mapping order for sub-configurations, such as the last row of Table 4, a note is added to indicate that when a sub-configuration contains multiple CSIs, the CSI fields in each row of the table are either all even-numbered subband CSIs or all odd-numbered subband CSIs. Table 4 can be understood as an extension of Table 6.3.1.1.2-11 in protocol 38.212. Table 6.3.1.1.2-11 in protocol 38.212 is the mapping order for CSI part 2 in a single csi-ReportConfig. In this table, the CQIs of all even subbands are mapped first, followed by the PMIs of all even subbands, the CQIs of all odd subbands, and finally the PMIs of all odd subbands. However, since a csi-ReportConfig may contain multiple sub-configurations, the embodiment of the present application expands each field to include multiple sub-configurations based on Table 6.3.1.1.2-11 in protocol 38.212, where each sub-config is arranged according to ID, first arranging the CQI of all even subbands of sub-report#1, and then arranging the PMI of all even subbands of sub-report#1, as shown in the CSI field in Table 4 below.

[0287] Furthermore, if a sub-configuration includes at least two CSIs, the even subband CSI of the second part of the CSI of the above at least two CSIs is mapped according to the mapping order of the mapping table of multi-TRP CSI and single TRP CSI predefined in the protocol. For example, the above mapping table can be Table 6.3.1.1.2-11A, Table 6.3.1.1.2-11B, Table 6.3.2.1.2-5A, Table 6.3.2.1.2-5B, Table 6.3.2.1.2-5C, and Table 6.3.2.1.2-5D in Protocol 38.212.

[0288] Table 4 Mapping order of CSI fields in CSI report

[0289] Method 2: Directly modify the CSI mapping order table. For example, assume that the CSI reporting mode is mode 1 and three CSIs are reported. These three CSIs are the NCJT CSI, the s-TRP CSI of the first TRP, and the s-TRP CSI of the second TRP. For example, assume that there are two sub-configurations, each containing three CSIs. The CSI arrangement rules are as shown in Table 5.

[0290] Table 5

[0291] Among them, Field group A is the even subband part in the NCJT part2 subband CSI mapping table in the existing protocol (such as Table 6.3.1.1.2-11A, Table 6.3.1.1.2-11B, Table 6.3.2.1.2-5A, Table 6.3.2.1.2-5B, Table 6.3.2.1.2-5C, and Table 6.3.2.1.2-5D in protocol 38.212), and Field group B is the odd subband part in the NCJT part2 subband CSI mapping table in the existing protocol. Table 5 is illustrated using Table 6.3.1.1.2-11A as an example.

[0292] This example only uses Table 6.3.11.2-11A as an example, where the six rows of Field group A correspond to the first to sixth rows of Table 6.3.1.1.2-11A, and the six rows of Field group B correspond to the seventh to twelfth rows of Table 6.3.1.1.2-11A. If we take Table 6.3.11.2-11B as an example, Field group A is the first, second, fifth, and sixth rows of Table 6.3.11.2-11B, and Field group B is the third, fourth, seventh, and eighth rows of Table 6.3.11.2-11B; if we take Table 6.3.11.2-5C as an example, Field group A is the first six rows of Table 6.3.11.2-5C, and Field group B is the last six rows of Table 6.3.11.2-5C; if we take Table 6.3.11.2-5D as an example, Field group A is the first, second, fifth, and sixth rows of Table 6.3.11.2-5D, and Field group B is the third, fourth, seventh, and eighth rows of Table 6.3.11.2-5C.

[0293] Based on this example, it can be inferred that when a sub-configuration includes NCJT CSI and S-TRP CSI, how to arrange multiple CSIs included in multiple sub-configuration CSIs.

[0294] In summary, in this embodiment of the present application, when there are multiple sub-configurations and each sub-configuration contains multiple CSIs (at least NCJT CSI and S-TRP CSI), the mapping order of the CSI part2 subband can be:

[0295] First, arrange the even-numbered subband CSIs of all CSIs included in all sub-configurations, and then arrange the odd-numbered subband CSIs of all CSIs included in all sub-configurations;

[0296] Among them, sub-configurations are mapped one by one according to the sub-configuration identifier from small to large;

[0297] The mapping order of multiple CSIs contained in the sub-configuration refers to the tables in the current protocol, such as Table 6.3.1.1.2-11A, Table 6.3.1.1.2-11B, Table 6.3.2.1.2-5A, Table 6.3.2.1.2-5B, Table 6.3.2.1.2-5C, and Table 6.3.2.1.2-5D in protocol 38.212.

[0298] It should also be noted that in the relevant protocols, the description of NCJT CSI reporting involves K1 (i.e., the number of resources in resource group 1 in csi-ReportConfig), K2 (i.e., the number of resources in resource group 2 in csi-ReportConfig), and N (i.e., the number of CMR pairs in csi-ReportConfig). In the embodiments, each sub-configuration can be regarded as an independent CSI report. When calculating the NCJT CSI report of a sub-configuration, especially the CSI report of the Type II shutdown sub-configuration, it is necessary to clarify how K1, K2, and N described in the protocol correspond to the sub-configuration.

[0299] If m-TRP performs Type II shutdown, that is, the sub-configuration contains an NZP-CSI-RS ResourceList, which contains resources, this Among the resources, K3 resources are subsets of group1 associated with csi-ReportConfig, and the other K4 resources are subsets of group2 associated with csi-ReportConfig. For the NCJT CSI reporting of this subconfiguration, K3 corresponds to K1 in the protocol, and K4 corresponds to K2 in the protocol.

[0300] The UE determines how many resource pairs are in the sub-configuration according to the CMR pairing relationship in the csi-ReportConfig. Therefore, for the sub-configuration CSI reporting, the number of CMR pairs associated with the sub-configuration corresponds to N in the protocol.

[0301] Optionally, when the number of CSI-RS resources associated with the sub-configuration is 1, the maximum number of ports supported by each resource associated with the sub-configuration is 32;

[0302] or,

[0303] When the number of CSI-RS resources associated with the sub-configuration is 2, the maximum number of ports supported by each resource associated with the sub-configuration is 16;

[0304] or,

[0305] When the number of CSI-RS resources associated with the sub-configuration is greater than 2 and less than or equal to 8, the maximum number of ports supported by each resource associated with the sub-configuration is 8.

[0306] In this embodiment, to ensure that the resource set associated with the CSI reporting configuration is the full set of resources associated with the sub-configuration, the number of resources associated with the CSI reporting configuration will be relatively large, and the number of ports for each resource will be relatively large (because the sub-configuration configures the port-SubsetIndicator based on the resources in the CSI reporting configuration). This will inevitably exceed the existing restrictions on the number of resources and ports. Therefore, the restrictions on the number of resources and ports in the resource set in the existing protocol are applied to each sub-configuration. That is, in each sub-configuration, the number of resources associated with each sub-configuration and the number of ports for each resource must meet the restrictions in the existing protocol. In other words, if the number of CSI-RS resources associated with the sub-configuration is 1, the maximum number of ports supported by each resource associated with the sub-configuration is 32; if the number of CSI-RS resources associated with the sub-configuration is 2, the maximum number of ports supported by each resource associated with the sub-configuration is 16; and if the number of CSI-RS resources associated with the sub-configuration is greater than 2 and less than or equal to 8, the maximum number of ports supported by each resource associated with the sub-configuration is 8.

[0307] Please refer to FIG6 , which is a flowchart of a channel state information transmission method provided in an embodiment of the present application. The method can be executed by a network-side device, as shown in FIG6 , including the following steps:

[0308] Step 601: The network side device sends a channel state information (CSI) reporting configuration;

[0309] Step 602: The network-side device receives a CSI report;

[0310] The resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the resources associated with the CSI reporting configuration are configured as N resource groups, the network-side device is prohibited from configuring the CSI reporting configuration to be associated with at least one sub-configuration; or, when the CSI reporting configuration is associated with at least one sub-configuration, the network-side device is prohibited from configuring the resources associated with the CSI reporting configuration to be N resource groups; N is an integer greater than or equal to 2.

[0311] Optionally, the sub-configuration includes at least one of the following:

[0312] A first identifier, used to indicate the resource group associated with the sub-configuration;

[0313] A second identifier is used to indicate a transmitting and receiving point TRP associated with the sub-configuration;

[0314] Port subset indication;

[0315] Codebook subset restriction CBSR;

[0316] Rank indicates RI limit;

[0317] At least one set of channel state information reference signal CSI-RS resources;

[0318] Power offset value;

[0319] Channel measurement resource CMR pair configuration information;

[0320] CSI reporting mode;

[0321] The number of single TRP CSIs reported in the first CSI reporting mode.

[0322] Optionally, the first identifier includes a bitmap for indicating a resource group associated with the sub-configuration;

[0323] or,

[0324] The first identifier includes a resource group identifier of a resource group associated with the sub-configuration.

[0325] Optionally, the subconfiguration includes N groups of CSI-RS resources, and each group of CSI-RS resources includes at least one CSI-RS resource of one resource group among the N resource groups associated with the CSI reporting configuration, and the N groups of CSI-RS resources correspond to the N resource groups respectively;

[0326] or,

[0327] The sub-configuration includes a group of CSI-RS resources, and the number of resources in the group of CSI-RS resources is the same as the number of resources associated with the CSI reporting configuration;

[0328] or,

[0329] The sub-configuration includes a set of CSI-RS resources, and the set of CSI-RS resources includes at least one resource of each of the N resource groups.

[0330] Optionally, the CMR pair configuration information includes CMR pairing information; or, the CMR pair configuration information includes an identifier of a CMR pair; or, the CMR pair configuration information includes a sequence number of the CMR pair among all CMR pairs configured in the CSI reporting configuration.

[0331] Optionally, in a case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration does not include the at least one group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups among the resources associated with the CSI reporting configuration associated with the sub-configuration;

[0332] or,

[0333] In a case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes N groups of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from two groups of CSI-RS resources in the N groups of CSI-RS resources;

[0334] or,

[0335] In the case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes a group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups in the group of CSI-RS resources.

[0336] Optionally, when the CSI report includes CSI of at least two sub-configurations, the CSI of the at least two sub-configurations are mapped in ascending order according to the identifiers of the at least two sub-configurations.

[0337] Optionally, the CSI first part of the CSI report includes the CSI first parts of the CSI of the at least two sub-configurations, and the CSI first parts of the CSI of the at least two sub-configurations are mapped in ascending order according to the identifiers of the at least two sub-configurations.

[0338] Optionally, the mapping order of the wideband CSI of the second part of the CSI of the CSI of the at least two sub-configurations is before the mapping order of the subband CSI of the second part of the CSI of the at least two sub-configurations, and the wideband CSI of the second part of the CSI of the CSI of the at least two sub-configurations is mapped in ascending order of the identifiers of the at least two sub-configurations;

[0339] The mapping order of the even subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is before the mapping order of the odd subband CSI of the second part of the CSI of the corresponding CSI of the at least two subconfigurations, and the even subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is mapped in ascending order according to the identifiers of the at least two subconfigurations, and the mapping order of the odd subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is mapped in ascending order according to the identifiers of the at least two subconfigurations.

[0340] Optionally, when the CSI of the sub-configuration includes at least two CSIs, a mapping order of the even subband CSIs of the second part of the CSIs of the at least two CSIs is before a mapping order of the odd subband CSIs of the second part of the CSIs of the at least two CSIs;

[0341] The even subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol;

[0342] The odd subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol.

[0343] Optionally, when the number of CSI-RS resources associated with the sub-configuration is 1, the maximum number of ports supported by each resource associated with the sub-configuration is 32;

[0344] or,

[0345] When the number of CSI-RS resources associated with the sub-configuration is 2, the maximum number of ports supported by each resource associated with the sub-configuration is 16;

[0346] or,

[0347] When the number of CSI-RS resources associated with the sub-configuration is greater than 2 and less than or equal to 8, the maximum number of ports supported by each resource associated with the sub-configuration is 8.

[0348] It should be noted that the implementation of this embodiment can refer to the relevant description of the embodiment shown in Figure 5, and will not be repeated here.

[0349] It should be noted that the channel state information transmission method provided in the embodiments of the present application can be executed by a channel state information transmission device, or a control module in the channel state information transmission device for executing the channel state information transmission method. In the embodiments of the present application, the channel state information transmission device provided in the embodiments of the present application is described by taking the channel state information transmission device executing the channel state information transmission method as an example.

[0350] Please refer to FIG. 7 , which is a structural diagram of a channel state information transmission device provided in an embodiment of the present application. As shown in FIG. 7 , the channel state information transmission device 700 includes:

[0351] The first receiving module 701 is configured to receive a channel state information (CSI) reporting configuration;

[0352] A reporting module 702, configured to report a CSI report according to the CSI reporting configuration;

[0353] The resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be associated with at least one sub-configuration, the resources associated with the CSI reporting configuration are configured as N resource groups; N is an integer greater than or equal to 2.

[0354] Optionally, the sub-configuration includes at least one of the following:

[0355] A first identifier, used to indicate the resource group associated with the sub-configuration;

[0356] A second identifier is used to indicate a transmitting and receiving point TRP associated with the sub-configuration;

[0357] Port subset indication;

[0358] Codebook subset restriction CBSR;

[0359] Rank indicates RI limit;

[0360] At least one set of channel state information reference signal CSI-RS resources;

[0361] Power offset value;

[0362] Channel measurement resource CMR pair configuration information;

[0363] CSI reporting mode;

[0364] The number of single TRP CSIs reported in the first CSI reporting mode.

[0365] Optionally, the first identifier includes a bitmap for indicating a resource group associated with the sub-configuration;

[0366] or,

[0367] The first identifier includes a resource group identifier of a resource group associated with the sub-configuration.

[0368] Optionally, the subconfiguration includes N groups of CSI-RS resources, and each group of CSI-RS resources includes at least one CSI-RS resource of one resource group among the N resource groups associated with the CSI reporting configuration, and the N groups of CSI-RS resources correspond to the N resource groups respectively;

[0369] or,

[0370] The sub-configuration includes a group of CSI-RS resources, and the number of resources in the group of CSI-RS resources is the same as the number of resources associated with the CSI reporting configuration;

[0371] or,

[0372] The sub-configuration includes a set of CSI-RS resources, and the set of CSI-RS resources includes at least one resource of each of the N resource groups.

[0373] Optionally, the CMR pair configuration information includes CMR pairing information; or, the CMR pair configuration information includes an identifier of a CMR pair; or, the CMR pair configuration information includes a sequence number of the CMR pair among all CMR pairs configured in the CSI reporting configuration.

[0374] Optionally, in a case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration does not include the at least one group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups among the resources associated with the CSI reporting configuration associated with the sub-configuration;

[0375] or,

[0376] In a case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes N groups of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from two groups of CSI-RS resources in the N groups of CSI-RS resources;

[0377] or,

[0378] In the case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes a group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups in the group of CSI-RS resources.

[0379] Optionally, the device further includes a computing module, configured to:

[0380] In a case where the subconfiguration includes a port subset indication, a CBSR, an RI limit, and a power offset value, the terminal calculates the CSI of the subconfiguration according to the following conditions: the port status of all CSI-RS resources associated with the CSI reporting configuration is the port status indicated by the port subset indication, the RI limit used for CSI calculation of the subconfiguration is the RI limit included in the subconfiguration, the CBSR used for CSI calculation of the subconfiguration is the CBSR included in the subconfiguration, and the power control offset value of each resource of all CSI-RS resources associated with the CSI reporting configuration is increased or decreased by the power offset value included in the subconfiguration;

[0381] or,

[0382] In a case where the subconfiguration includes at least one set of CSI-RS resources and a power offset value, calculating the CSI of the subconfiguration according to taking the at least one set of CSI-RS resources included in the subconfiguration as measurement resources and increasing or decreasing each resource power control offset value of the at least one set of CSI-RS resources included in the subconfiguration by the power offset value included in the subconfiguration;

[0383] or,

[0384] In a case where the subconfiguration includes a port subset indication, a CBSR, an RI limit, at least one group of CSI-RS resources, and a power offset value, the CSI of the subconfiguration is calculated according to the following steps: using the at least one group of CSI-RS resources included in the subconfiguration as measurement resources, the port state of the at least one group of CSI-RS resources included in the subconfiguration being the port state indicated by the port subset indication, the RI limit used for CSI calculation of the subconfiguration being the RI limit included in the subconfiguration, the CBSR used for CSI calculation of the subconfiguration being the CBSR included in the subconfiguration, and the power control offset value of each resource in the at least one group of CSI-RS resources included in the subconfiguration being increased or decreased by the power offset value included in the subconfiguration;

[0385] or,

[0386] In a case where the sub-configuration includes a port subset indication, a CBSR, an RI limit, at least one set of CSI-RS resources, and a power offset value, performing at least one of the following:

[0387] Calculating the single TRP CSI for the first resource group according to the port status of the resources of the first resource group being the port status indicated by the port subset indication, the RI limit for calculating the single TRP CSI for the first resource group being the RI limit included in the subconfiguration, the CBSR for calculating the single TRP CSI for the first resource group being the CBSR included in the subconfiguration, and the power control offset value of each resource of the first resource group being increased or decreased by the power offset value included in the subconfiguration;

[0388] Calculating the single TRP CSI of the second resource group according to using the resources of the at least one group of CSI-RS resources as measurement resources of the single TRP CSI of the second resource group and increasing or decreasing the power control offset value of each resource of the at least one group of CSI-RS resources by the power offset value included in the subconfiguration;

[0389] calculating the multi-TRP CSI according to the port status of the resources of the first resource group being the port status indicated by the port subset indication, using the resources of the at least one group of CSI-RS resources as the measurement resources of the second resource group, the RI limit used for multi-TRP CSI calculation being the RI limit included in the subconfiguration or the RI limit included in the CSI reporting configuration, the CBSR used for the multi-TRP CSI calculation being the CBSR included in the subconfiguration or the CBSR included in the CSI reporting configuration, and the power control offset value of each resource of the first resource group and each resource of the at least one group of CSI-RS resources being increased or decreased by the power offset value included in the subconfiguration;

[0390] The first resource group and the second resource group are different resource groups of the N resource groups;

[0391] or,

[0392] If the sub-configuration does not include CMR pair configuration information, calculating the multi-TRP CSI of the sub-configuration according to the CMR pair configuration information in the resource configuration associated with the CSI reporting configuration;

[0393] or,

[0394] In a case where the sub-configuration includes CMR pair configuration information, the multi-TRP CSI of the sub-configuration is calculated according to the CMR pair configuration information included in the sub-configuration.

[0395] Optionally, the device further includes a first determining module, configured to:

[0396] When the subconfiguration includes the CSI reporting mode or the number of single-TRP CSIs reported when the CSI reporting mode is the first mode, determining the CSI to be reported for the subconfiguration according to the CSI reporting mode included in the subconfiguration or the number of single-TRP CSIs reported when the CSI reporting mode is the first mode;

[0397] or,

[0398] If the sub-configuration does not include a CSI reporting mode or the CSI reporting mode is the number of single-TRP CSIs reported in the first mode, the CSI reporting mode configured in the CSI reporting configuration or the number of single-TRP CSIs reported in the first mode determines the CSI to be reported by the sub-configuration;

[0399] or,

[0400] In a case where the sub-configuration does not include a CSI reporting mode or the number of single-TRP CSIs reported in the first mode, the CSI to be reported by the sub-configuration is determined based on the first identifier, wherein, in a case where the first identifier indicates one resource group, the CSI to be reported by the sub-configuration includes the single TRP CSI corresponding to the resource group indicated by the first identifier; and in a case where the first identifier indicates at least two resource groups, the CSI to be reported by the sub-configuration includes the multiple TRP CSI corresponding to the at least two resource groups indicated by the first identifier.

[0401] Optionally, the device further comprises:

[0402] The second determining module is configured to determine the resource group associated with the sub-configuration according to the first identifier when the sub-configuration includes the first identifier.

[0403] Optionally, when the CSI report includes CSI of at least two sub-configurations, the CSI of the at least two sub-configurations are mapped in ascending order according to the identifiers of the at least two sub-configurations.

[0404] Optionally, the CSI first part of the CSI report includes the CSI first parts of the CSI of the at least two sub-configurations, and the CSI first parts of the CSI of the at least two sub-configurations are mapped in ascending order according to the identifiers of the at least two sub-configurations.

[0405] Optionally, the mapping order of the wideband CSI of the second part of the CSI of the CSI of the at least two sub-configurations is before the mapping order of the subband CSI of the second part of the CSI of the at least two sub-configurations, and the wideband CSI of the second part of the CSI of the CSI of the at least two sub-configurations is mapped in ascending order of the identifiers of the at least two sub-configurations;

[0406] The mapping order of the even subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is before the mapping order of the odd subband CSI of the second part of the CSI of the corresponding CSI of the at least two subconfigurations, and the even subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is mapped in ascending order according to the identifiers of the at least two subconfigurations, and the mapping order of the odd subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is mapped in ascending order according to the identifiers of the at least two subconfigurations.

[0407] Optionally, the CSI reporting configuration is associated with at least two sub-configurations, and the apparatus further includes:

[0408] a discarding module, configured to omit or discard part or all of the second CSI parts of the CSI of the at least two subconfigurations according to a mapping order of the second CSI parts of the CSI of the at least two subconfigurations;

[0409] The mapping order of the CSI second parts of the CSI of the at least two sub-configurations is determined according to the order of the identifiers of the at least two sub-configurations.

[0410] Optionally, when the CSI of the sub-configuration includes at least two CSIs, a mapping order of the even subband CSIs of the second part of the CSIs of the at least two CSIs is before a mapping order of the odd subband CSIs of the second part of the CSIs of the at least two CSIs;

[0411] The even subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol;

[0412] The odd subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol.

[0413] Optionally, when the number of CSI-RS resources associated with the sub-configuration is 1, the maximum number of ports supported by each resource associated with the sub-configuration is 32;

[0414] or,

[0415] When the number of CSI-RS resources associated with the sub-configuration is 2, the maximum number of ports supported by each resource associated with the sub-configuration is 16;

[0416] or,

[0417] When the number of CSI-RS resources associated with the sub-configuration is greater than 2 and less than or equal to 8, the maximum number of ports supported by each resource associated with the sub-configuration is 8.

[0418] The channel state information transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can include servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0419] The channel state information transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 5 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0420] Please refer to FIG8 , which is a structural diagram of a channel state information transmission device provided in an embodiment of the present application. As shown in FIG8 , the channel state information transmission device 800 includes:

[0421] The sending module 801 is used to send the channel state information CSI reporting configuration;

[0422] A second receiving module 802 is configured to receive a CSI report;

[0423] The resources associated with the CSI reporting configuration are configured as at least two resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the resources associated with the CSI reporting configuration are configured as at least two resource groups, the network-side device is prohibited from configuring the CSI reporting configuration to be associated with at least one sub-configuration; or, when the CSI reporting configuration is associated with at least one sub-configuration, the network-side device is prohibited from configuring the resources associated with the CSI reporting configuration to be at least two resource groups.

[0424] Optionally, the sub-configuration includes at least one of the following:

[0425] A first identifier, used to indicate the resource group associated with the sub-configuration;

[0426] A second identifier is used to indicate a transmitting and receiving point TRP associated with the sub-configuration;

[0427] Port subset indication;

[0428] Codebook subset restriction CBSR;

[0429] Rank indicates RI limit;

[0430] At least one set of channel state information reference signal CSI-RS resources;

[0431] Power offset value;

[0432] Channel measurement resource CMR pair configuration information;

[0433] CSI reporting mode;

[0434] The number of single TRP CSIs reported in the first CSI reporting mode.

[0435] Optionally, the first identifier includes a bitmap for indicating a resource group associated with the sub-configuration;

[0436] or,

[0437] The first identifier includes a resource group identifier of a resource group associated with the sub-configuration.

[0438] Optionally, the subconfiguration includes N groups of CSI-RS resources, and each group of CSI-RS resources includes at least one CSI-RS resource of one resource group among the N resource groups associated with the CSI reporting configuration, and the N groups of CSI-RS resources correspond to the N resource groups respectively;

[0439] or,

[0440] The sub-configuration includes a group of CSI-RS resources, and the number of resources in the group of CSI-RS resources is the same as the number of resources associated with the CSI reporting configuration;

[0441] or,

[0442] The sub-configuration includes a set of CSI-RS resources, and the set of CSI-RS resources includes at least one resource of each of the N resource groups.

[0443] Optionally, the CMR pair configuration information includes CMR pairing information; or, the CMR pair configuration information includes an identifier of a CMR pair; or, the CMR pair configuration information includes a sequence number of the CMR pair among all CMR pairs configured in the CSI reporting configuration.

[0444] Optionally, in a case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration does not include the at least one group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups among the resources associated with the CSI reporting configuration associated with the sub-configuration;

[0445] or,

[0446] In a case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes N groups of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from two groups of CSI-RS resources in the N groups of CSI-RS resources;

[0447] or,

[0448] In the case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes a group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups in the group of CSI-RS resources.

[0449] Optionally, when the CSI report includes CSI of at least two sub-configurations, the CSI of the at least two sub-configurations are mapped in ascending order according to the identifiers of the at least two sub-configurations.

[0450] Optionally, the CSI first part of the CSI report includes the CSI first parts of the CSI of the at least two sub-configurations, and the CSI first parts of the CSI of the at least two sub-configurations are mapped in ascending order according to the identifiers of the at least two sub-configurations.

[0451] Optionally, the mapping order of the wideband CSI of the second part of the CSI of the CSI of the at least two sub-configurations is before the mapping order of the subband CSI of the second part of the CSI of the at least two sub-configurations, and the wideband CSI of the second part of the CSI of the CSI of the at least two sub-configurations is mapped in ascending order of the identifiers of the at least two sub-configurations;

[0452] The mapping order of the even subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is before the mapping order of the odd subband CSI of the second part of the CSI of the corresponding CSI of the at least two subconfigurations, and the even subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is mapped in ascending order according to the identifiers of the at least two subconfigurations, and the mapping order of the odd subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is mapped in ascending order according to the identifiers of the at least two subconfigurations.

[0453] Optionally, when the CSI of the sub-configuration includes at least two CSIs, a mapping order of the even subband CSIs of the second part of the CSIs of the at least two CSIs is before a mapping order of the odd subband CSIs of the second part of the CSIs of the at least two CSIs;

[0454] The even subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol;

[0455] The odd subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol.

[0456] Optionally, when the number of CSI-RS resources associated with the sub-configuration is 1, the maximum number of ports supported by each resource associated with the sub-configuration is 32;

[0457] or,

[0458] When the number of CSI-RS resources associated with the sub-configuration is 2, the maximum number of ports supported by each resource associated with the sub-configuration is 16;

[0459] or,

[0460] When the number of CSI-RS resources associated with the sub-configuration is greater than 2 and less than or equal to 8, the maximum number of ports supported by each resource associated with the sub-configuration is 8.

[0461] The channel state information transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device, or it can be a device other than a network-side device. For example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above. Other devices can include servers, network attached storage (NAS), etc., and are not specifically limited in the embodiments of the present application.

[0462] The channel state information transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 6 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0463] Optionally, as shown in Figure 9, an embodiment of the present application further provides a communication device 900, including a processor 901 and a memory 902, wherein the memory 902 stores a program or instruction that can be run on the processor 901. For example, when the communication device 900 is a terminal, the program or instruction is executed by the processor 901 to implement the various steps of the above-mentioned channel state information transmission method embodiment, and can achieve the same technical effect. When the communication device 900 is a network side device, the program or instruction is executed by the processor 901 to implement the various steps of the above-mentioned channel state information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0464] An embodiment of the present application also provides a terminal, comprising a processor and a communication interface, wherein the communication interface is used to receive a channel state information (CSI) reporting configuration; report a CSI report according to the CSI reporting configuration; wherein the resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration; or, when the terminal does not expect the resources associated with the CSI reporting configuration to be associated with at least one sub-configuration, the resources associated with the CSI reporting configuration are configured as N resource groups; N is an integer greater than or equal to 2. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 10 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.

[0465] The terminal 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009 and at least some of the components of the processor 1010.

[0466] Those skilled in the art will appreciate that the terminal 1000 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1010 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG10 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0467] It should be understood that in an embodiment of the present application, the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0468] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1001 may transmit the data to the processor 1010 for processing. Furthermore, the RF unit 1001 may send uplink data to the network-side device. Typically, the RF unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0469] The memory 1009 can be used to store software programs or instructions and various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1009 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 1009 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0470] Processor 1010 may include one or more processing units. Optionally, processor 1010 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1010.

[0471] The radio frequency unit 1001 is configured to receive a channel state information (CSI) reporting configuration;

[0472] The radio frequency unit 1001 is further used to report a CSI report according to the CSI reporting configuration; wherein, the resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the terminal does not expect that the resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration; or, when the terminal does not expect that the resources associated with the CSI reporting configuration are associated with at least one sub-configuration, the resources associated with the CSI reporting configuration are configured as N resource groups; N is an integer greater than or equal to 2.

[0473] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the aforementioned method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0474] An embodiment of the present application also provides a network-side device, comprising a processor and a communication interface, wherein the communication interface is configured to send a channel state information (CSI) reporting configuration; the communication interface is further configured to receive a CSI report; wherein the resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the resources associated with the CSI reporting configuration are configured as N resource groups, the network-side device prohibits configuring the CSI reporting configuration to be associated with at least one sub-configuration; or, when the CSI reporting configuration is associated with at least one sub-configuration, the network-side device prohibits configuring the resources associated with the CSI reporting configuration to be N resource groups; N is an integer greater than or equal to 2. This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effect.

[0475] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 11, the network-side device 1100 includes an antenna 1101, a radio frequency device 1102, a baseband device 1103, a processor 1104, and a memory 1105. Antenna 1101 is connected to radio frequency device 1102. In the uplink direction, radio frequency device 1102 receives information via antenna 1101 and sends the received information to baseband device 1103 for processing. In the downlink direction, baseband device 1103 processes the information to be transmitted and sends it to radio frequency device 1102. Radio frequency device 1102 processes the received information and then sends it through antenna 1101.

[0476] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 1103 , which includes a baseband processor.

[0477] The baseband device 1103 may, for example, include at least one baseband board, on which multiple chips are arranged, as shown in Figure 11, one of the chips is, for example, a baseband processor, which is connected to the memory 1105 through a bus interface to call the program in the memory 1105 and execute the network device operations shown in the above method embodiment.

[0478] The network side device may further include a network interface 1106 , which is, for example, a Common Public Radio Interface (CPRI).

[0479] Specifically, the network side device 1100 of the embodiment of the present application also includes: instructions or programs stored in the memory 1105 and executable on the processor 1104. The processor 1104 calls the instructions or programs in the memory 1105 to execute the method of executing each module shown in FIG8 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0480] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned channel state information transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0481] 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 computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0482] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned channel state information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0483] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0484] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned channel state information transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0485] An embodiment of the present application also provides a channel state information transmission system, including: a terminal and a network-side device, wherein the terminal is used to execute the various processes shown in Figure 6 and the various method embodiments described above, and the network-side device is used to execute the various processes shown in Figure 5 and the various method embodiments described above, and can achieve the same technical effects. To avoid repetition, they will not be repeated here.

[0486] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0487] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0488] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A channel state information transmission method, comprising: The terminal receives the channel state information CSI reporting configuration; The terminal reports a CSI report according to the CSI reporting configuration; The resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the terminal does not expect that the resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration; or, when the terminal does not expect that the resources associated with the CSI reporting configuration are associated with at least one sub-configuration, the resources associated with the CSI reporting configuration are configured as N resource groups; N is an integer greater than or equal to 2.

2. The method according to claim 1, wherein: The sub-configuration includes at least one of the following: A first identifier, used to indicate a resource group associated with the sub-configuration; A second identifier, used to indicate a sending and receiving point TRP associated with the sub-configuration; Port subset indication; Codebook subset restriction CBSR; Rank indicates RI limit; At least one set of channel state information reference signal CSI-RS resources; Power offset value; Channel measurement resource CMR pair configuration information; CSI reporting mode; The number of single TRP CSIs reported in the first CSI reporting mode.

3. The method according to claim 2, wherein: The first identification comprises a bitmap for indicating a resource group associated with the sub-configuration; or, The first identifier includes a resource group identifier of a resource group associated with the sub-configuration.

4. The method according to claim 2 or 3, wherein: The sub-configuration includes N groups of CSI-RS resources, and each group of CSI-RS resources includes at least one CSI-RS resource of one resource group among the N resource groups associated with the CSI reporting configuration, and the N groups of CSI-RS resources correspond to the N resource groups respectively; or, The sub-configuration includes a group of CSI-RS resources, and the number of resources in the group of CSI-RS resources is the same as the number of resources associated with the CSI reporting configuration; or, The sub-configuration includes a set of CSI-RS resources including at least one resource of each of the N resource groups.

5. The method according to any one of claims 2 to 4, wherein: The CMR pair configuration information includes CMR pairing information; or, the CMR pair configuration information includes an identifier of a CMR pair; or, the CMR pair configuration information includes a sequence number of the CMR pair in all CMR pairs configured in the CSI reporting configuration.

6. The method according to any one of claims 2 to 5, wherein: In a case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration does not include the at least one group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups among the resources associated with the CSI reporting configuration associated with the sub-configuration; or, In the case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes N groups of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from two groups of CSI-RS resources in the N groups of CSI-RS resources; or, In the case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes a group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups in the group of CSI-RS resources.

7. The method according to any one of claims 2 to 6, wherein: Before the terminal reports the CSI report according to the CSI reporting configuration, the method further includes: In a case where the sub-configuration includes a port subset indication, a CBSR, an RI limit, and a power offset value, the terminal calculates the CSI of the sub-configuration according to the port state of all CSI-RS resources associated with the CSI reporting configuration being the port state indicated by the port subset indication, the RI limit used for CSI calculation of the sub-configuration being the RI limit included in the sub-configuration, the CBSR used for CSI calculation of the sub-configuration being the CBSR included in the sub-configuration, and the power control offset value of each resource of all CSI-RS resources associated with the CSI reporting configuration being increased or decreased by the power offset value included in the sub-configuration; or, In a case where the sub-configuration includes at least one group of CSI-RS resources and a power offset value, the terminal calculates the CSI of the sub-configuration by taking the at least one group of CSI-RS resources included in the sub-configuration as measurement resources and increasing or decreasing each resource power control offset value of the at least one group of CSI-RS resources included in the sub-configuration by the power offset value included in the sub-configuration; or, In a case where the subconfiguration includes a port subset indication, a CBSR, an RI limit, at least one group of CSI-RS resources and a power offset value, the terminal calculates the subconfiguration according to the following steps: using the at least one group of CSI-RS resources included in the subconfiguration as measurement resources, the port state of the at least one group of CSI-RS resources included in the subconfiguration being the port state indicated by the port subset indication, the RI limit used for CSI calculation of the subconfiguration being the RI limit included in the subconfiguration, the CBSR used for CSI calculation of the subconfiguration being the CBSR included in the subconfiguration, and the power control offset value of each resource of the at least one group of CSI-RS resources included in the subconfiguration being increased or decreased by the power offset value included in the subconfiguration. Configured CSI; or, In a case where the sub-configuration includes a port subset indication, a CBSR, an RI restriction, at least one set of CSI-RS resources, and a power offset value, the terminal performs at least one of the following: Calculate the single TRP CSI of the first resource group according to the port status of the resources of the first resource group being the port status indicated by the port subset indication, the RI limit used for single TRP CSI calculation of the first resource group being the RI limit included in the subconfiguration, the CBSR used for single TRP CSI calculation of the first resource group being the CBSR included in the subconfiguration, and the power control offset value of each resource of the first resource group being increased or decreased by the power offset value included in the subconfiguration; The single TRP CSI of the second resource group is calculated according to taking the resources of the at least one group of CSI-RS resources as the measurement resources of the single TRP CSI of the second resource group, and increasing or decreasing the power control offset value of each resource of the at least one group of CSI-RS resources by the power offset value included in the sub-configuration; According to the port status of the resources of the first resource group being the port status indicated by the port subset indication, the resources of the at least one group of CSI-RS resources are used as the measurement resources of the second resource group, the RI limit used for multi-TRP CSI calculation is the RI limit included in the sub-configuration or the RI limit included in the CSI reporting configuration, the CBSR used for the multi-TRP CSI calculation is the CBSR included in the sub-configuration or the CBSR included in the CSI reporting configuration, and the power control offset value of each resource of the first resource group and each resource of the at least one group of CSI-RS resources is increased or decreased by the power offset value included in the sub-configuration to calculate the multi-TRP CSI; The first resource group and the second resource group are different resource groups of the N resource groups; or, In a case where the sub-configuration does not include CMR pair configuration information, the terminal calculates the multi-TRP CSI of the sub-configuration according to the CMR pair configuration information in the resource configuration associated with the CSI reporting configuration; or, In a case where the sub-configuration includes CMR pair configuration information, the terminal calculates the multi-TRP CSI of the sub-configuration according to the CMR pair configuration information included in the sub-configuration.

8. The method according to any one of claims 2 to 7, wherein: Before the terminal reports the CSI report according to the CSI reporting configuration, the method further includes: In a case where the sub-configuration includes a CSI reporting mode or a number of single-TRP CSIs reported in the CSI reporting mode in the first mode, the terminal determines the CSI to be reported for the sub-configuration according to the CSI reporting mode included in the sub-configuration or the number of single-TRP CSIs reported in the CSI reporting mode in the first mode; or, When the sub-configuration does not include a CSI reporting mode or the CSI reporting mode is the number of single-TRP CSIs reported in the first mode, the terminal determines the CSI to be reported for the sub-configuration according to the CSI reporting mode configured by the CSI reporting configuration or the number of single-TRP CSIs reported in the first mode; or, In a case where the sub-configuration does not include a CSI reporting mode or the number of single TRP CSI reported in the first mode, the terminal determines the CSI to be reported by the sub-configuration based on the first identifier, wherein, in a case where the first identifier indicates one resource group, the CSI to be reported by the sub-configuration includes the single TRP CSI corresponding to the resource group indicated by the first identifier, and in a case where the first identifier indicates at least two resource groups, the CSI to be reported by the sub-configuration includes multiple TRP CSI corresponding to at least two resource groups indicated by the first identifier.

9. The method according to any one of claims 2 to 8, wherein: The method further comprises: In a case where the sub-configuration includes the first identifier, the terminal determines a resource group associated with the sub-configuration according to the first identifier.

10. The method according to any one of claims 1 to 9, wherein: In a case where the CSI report includes CSI of at least two sub-configurations, the CSI of the at least two sub-configurations are mapped in an ascending order according to the identifiers of the at least two sub-configurations.

11. The method according to claim 10, wherein: The CSI first part of the CSI report includes the CSI first parts of the CSI of the at least two subconfigurations, and the CSI first parts of the CSI of the at least two subconfigurations are mapped in an ascending order according to the identifiers of the at least two subconfigurations.

12. The method according to claim 11, wherein: The mapping order of the wideband CSI of the second part of the CSI of the CSI of the at least two sub-configurations is before the mapping order of the subband CSI of the second part of the CSI of the at least two sub-configurations, and the wideband CSI of the second part of the CSI of the at least two sub-configurations is mapped in ascending order according to the identifiers of the at least two sub-configurations; The mapping order of the even subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is before the mapping order of the odd subband CSI of the second part of the CSI of the CSI corresponding to the at least two subconfigurations, and the even subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is mapped in ascending order according to the identifiers of the at least two subconfigurations, and the mapping order of the odd subband CSI of the second part of the CSI of the CSI of the at least two subconfigurations is mapped in ascending order according to the identifiers of the at least two subconfigurations.

13. The method according to any one of claims 1 to 12, wherein: The CSI reporting configuration is associated with at least two sub-configurations, and the method further includes: The terminal omits or discards part or all of the second parts of the CSI of the at least two sub-configurations according to a mapping order of the second parts of the CSI of the at least two sub-configurations; The mapping order of the CSI second part of the CSI of the at least two sub-configurations is determined according to the order of the identifiers of the at least two sub-configurations.

14. The method according to any one of claims 1 to 13, wherein: In a case where the CSI of the sub-configuration includes at least two CSIs, a mapping order of the even sub-band CSIs of the second part of the CSIs of the at least two CSIs is located before a mapping order of the odd sub-band CSIs of the second part of the CSIs of the at least two CSIs; The even subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of the multi-TRP CSI and the single TRP CSI predefined in the protocol; The odd subband CSI of the second part of the CSI of the at least two CSIs is based on the multi-TRP CSI and the single The TRP CSI is mapped in the mapping order.

15. The method according to any one of claims 1 to 14, wherein: When the number of CSI-RS resources associated with the sub-configuration is 1, the maximum number of ports supported by each resource associated with the sub-configuration is 32; or, When the number of CSI-RS resources associated with the sub-configuration is 2, the maximum number of ports supported by each resource associated with the sub-configuration is 16; or, When the number of CSI-RS resources associated with the sub-configuration is greater than 2 and less than or equal to 8, the maximum number of ports supported by each resource associated with the sub-configuration is 8.

16. A method for transmitting channel state information, comprising: The network side device sends the channel state information CSI reporting configuration; The network side device receives the CSI report; The resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the resources associated with the CSI reporting configuration are configured as N resource groups, the network side device is prohibited from configuring the CSI reporting configuration to be associated with at least one sub-configuration; or, when the CSI reporting configuration is associated with at least one sub-configuration, the network side device is prohibited from configuring the resources associated with the CSI reporting configuration to be N resource groups; N is an integer greater than or equal to 2.

17. The method according to claim 16, wherein: The sub-configuration includes at least one of the following: A first identifier, used to indicate a resource group associated with the sub-configuration; A second identifier, used to indicate a sending and receiving point TRP associated with the sub-configuration; Port subset indication; Codebook subset restriction CBSR; Rank indicates RI limit; At least one set of channel state information reference signal CSI-RS resources; Power offset value; Channel measurement resource CMR pair configuration information; CSI reporting mode; The number of single TRP CSIs reported in the first CSI reporting mode.

18. The method according to claim 17, wherein: The first identification comprises a bitmap for indicating a resource group associated with the sub-configuration; or, The first identifier includes a resource group identifier of a resource group associated with the sub-configuration.

19. The method according to claim 17 or 18, wherein: The sub-configuration includes N groups of CSI-RS resources, and each group of CSI-RS resources includes at least one CSI-RS resource of one resource group among the N resource groups associated with the CSI reporting configuration, and the N groups of CSI-RS resources correspond to the N resource groups respectively; or, The sub-configuration includes a group of CSI-RS resources, and the number of resources in the group of CSI-RS resources is the same as the number of resources associated with the CSI reporting configuration; or, The sub-configuration includes a set of CSI-RS resources including at least one resource of each of the N resource groups.

20. The method according to any one of claims 17 to 19, wherein: The CMR pair configuration information includes CMR pairing information; or, the CMR pair configuration information includes an identifier of a CMR pair; or, the CMR pair configuration information includes a sequence number of the CMR pair in all CMR pairs configured in the CSI reporting configuration.

21. The method according to any one of claims 17 to 20, wherein: In a case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration does not include the at least one group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups among the resources associated with the CSI reporting configuration associated with the sub-configuration; or, In the case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes N groups of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from two groups of CSI-RS resources in the N groups of CSI-RS resources; or, In the case where the sub-configuration includes the CMR pair configuration information, if the sub-configuration includes a group of CSI-RS resources, the CMR pair configured by the CMR pair configuration information includes resources from different resource groups in the group of CSI-RS resources.

22. The method according to any one of claims 16 to 21, wherein: In a case where the CSI report includes CSI of at least two sub-configurations, the CSI of the at least two sub-configurations are mapped in an ascending order according to the identifiers of the at least two sub-configurations.

23. The method according to claim 22, wherein: The CSI first part of the CSI report includes the CSI first parts of the CSI of the at least two subconfigurations, and the CSI first parts of the CSI of the at least two subconfigurations are mapped in an ascending order according to the identifiers of the at least two subconfigurations.

24. The method according to claim 23, wherein: The mapping order of the wideband CSI of the second part of the CSI of the CSI of the at least two sub-configurations is before the mapping order of the subband CSI of the second part of the CSI of the at least two sub-configurations, and the wideband CSI of the second part of the CSI of the at least two sub-configurations is mapped in ascending order according to the identifiers of the at least two sub-configurations; The mapping order of the even sub-band CSI of the second part of the CSI of the CSI of the at least two sub-configurations is before the mapping order of the odd sub-band CSI of the second part of the CSI corresponding to the at least two sub-configurations, and the at least two The even subband CSI of the second part of the CSI of the CSI of the sub-configuration is mapped in ascending order according to the identifiers of the at least two sub-configurations, and the mapping order of the odd subband CSI of the second part of the CSI of the at least two sub-configurations is mapped in ascending order according to the identifiers of the at least two sub-configurations.

25. The method according to any one of claims 16 to 24, wherein: In a case where the CSI of the sub-configuration includes at least two CSIs, a mapping order of the even sub-band CSIs of the second part of the CSIs of the at least two CSIs is located before a mapping order of the odd sub-band CSIs of the second part of the CSIs of the at least two CSIs; The even subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of the multi-TRP CSI and the single TRP CSI predefined in the protocol; The odd subband CSI of the second part of the CSI of the at least two CSIs is mapped according to the mapping order of multi-TRP CSI and single TRP CSI predefined in the protocol.

26. The method according to any one of claims 16 to 25, wherein: When the number of CSI-RS resources associated with the sub-configuration is 1, the maximum number of ports supported by each resource associated with the sub-configuration is 32; or, When the number of CSI-RS resources associated with the sub-configuration is 2, the maximum number of ports supported by each resource associated with the sub-configuration is 16; or, When the number of CSI-RS resources associated with the sub-configuration is greater than 2 and less than or equal to 8, the maximum number of ports supported by each resource associated with the sub-configuration is 8.

27. A channel state information transmission device, comprising: A first receiving module, configured to receive a channel state information CSI reporting configuration; A reporting module, configured to report a CSI report according to the CSI reporting configuration; The resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the terminal does not expect that the resources associated with the CSI reporting configuration are configured as N resource groups, the CSI reporting configuration is associated with at least one sub-configuration; or, when the terminal does not expect that the resources associated with the CSI reporting configuration are associated with at least one sub-configuration, the resources associated with the CSI reporting configuration are configured as N resource groups; N is an integer greater than or equal to 2.

28. A channel state information transmission device, comprising: A sending module, used to send channel state information CSI reporting configuration; A second receiving module, configured to receive a CSI report; The resources associated with the CSI reporting configuration are configured as at least two resource groups, the CSI reporting configuration is associated with at least one sub-configuration, and the CSI report includes the CSI of the at least one sub-configuration; or, when the resources associated with the CSI reporting configuration are configured as at least two resource groups, the network side device is prohibited from configuring the CSI reporting configuration to be associated with at least one sub-configuration; or, when the CSI reporting configuration is associated with at least one sub-configuration, the network side device is prohibited from configuring the resources associated with the CSI reporting configuration to be at least two resource groups.

29. A terminal comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the channel state information transmission method according to any one of claims 1 to 16 are implemented.

30. A network side device, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the channel state information transmission method as described in any one of claims 17 to 26 are implemented.

31. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the channel state information transmission method as described in any one of claims 1 to 16, or implements the steps of the channel state information transmission method as described in any one of claims 17 to 26.

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