Csi reporting method, terminal device, network device, and storage medium

Abstract

The embodiment of the application provides a CSI reporting method, a terminal device, a network device and a storage medium, which are used for enabling the terminal device to feed back the CSI of one or more single TRPs and the CSI of multi-TRP joint transmission in the same CSI reporting by multiple reporting quantity information in the CSI reporting configuration, and the CSI of which transmission hypothesis is fed back can be flexibly configured, so that the network device can perform dynamic switching of single-TRP transmission and multi-TRP joint transmission according to the reported CSI, and higher downlink throughput is obtained. The embodiment of the application can include: a terminal device receives a CSI reporting configuration sent by a network device, wherein the CSI reporting configuration contains multiple reporting quantity information; the terminal device measures corresponding CSI according to the multiple reporting quantity information; and the terminal device feeds back the CSI corresponding to at least one reporting quantity information in the multiple reporting quantity information in the CSI reporting corresponding to the CSI reporting configuration.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to a CSI reporting method, terminal equipment, network equipment, and storage medium. Background Technology

[0002] In existing technologies, terminal devices report a configuration feedback CSI for each Channel State Information (CSI). This CSI is calculated based on the channel measurement resources and interference measurement resources configured by the network and can only be used to obtain channel information for a single transmission / reception point (TRP) under a single transmission scheme assumption. To simultaneously support single-TRP transmission and multi-TRP downlink non-coherent joint transmission (NC-JT), network devices need to instruct terminal devices to report multiple CSIs based on different transmission scheme assumptions. Typically, network devices need to configure multiple CSI reporting configurations; some configurations correspond to single-TRP transmission, while others correspond to multi-TRP NC-JT, but the measurement resources corresponding to these configurations are the same. This reporting method requires multiple sets of CSI reporting configurations and incurs significant CSI reporting overhead, thus wasting downlink signaling and affecting uplink channel transmission performance. Furthermore, it introduces substantial CSI feedback delays, further impacting downlink transmission performance. Summary of the Invention

[0003] This invention provides a CSI reporting method, a terminal device, a network device, and a storage medium. The method enables the terminal device to report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in a single CSI report by using multiple reporting quantity information in the CSI reporting configuration. The method allows for flexible configuration of which CSIs are reported based on transmission assumptions. This enables the network device to dynamically switch between single-TRP transmission and multi-TRP joint transmission based on the reported CSIs, resulting in higher downlink throughput.

[0004] The first aspect of this invention provides a CSI reporting method, which may include:

[0005] The terminal device receives the CSI reporting configuration sent by the network device, wherein the CSI reporting configuration contains multiple reporting quantity information;

[0006] The terminal device measures the corresponding CSI based on the multiple reported data.

[0007] In the CSI reporting configuration corresponding to the CSI reporting, the terminal device feeds back at least one of the multiple reporting quantity information corresponding to the CSI.

[0008] A second aspect of this invention provides a CSI reporting method, which may include:

[0009] The network device sends a CSI reporting configuration to the terminal device. The CSI reporting configuration includes multiple reporting quantity information, which are used by the terminal device to measure the corresponding CSI respectively.

[0010] The network device receives from the terminal device, in the CSI report corresponding to the CSI reporting configuration, at least one of the multiple reporting quantity information corresponding to the CSI.

[0011] A third aspect of the present invention provides a terminal device, which may include:

[0012] The transceiver module is used to receive CSI reporting configuration sent by network devices, wherein the CSI reporting configuration contains multiple reporting quantity information.

[0013] The processing module is used to measure the corresponding CSI based on the multiple reported quantities.

[0014] The transceiver module is used to feed back at least one of the multiple reported quantity information corresponding to the CSI in the CSI reporting configuration corresponding to the CSI reporting.

[0015] A fourth aspect of this invention provides a network device, which may include:

[0016] The transceiver module is used to send a CSI reporting configuration to a terminal device, wherein the CSI reporting configuration includes multiple reporting quantity information, and the multiple reporting quantity information is used by the terminal device to measure the corresponding CSI respectively; and to receive the CSI corresponding to at least one of the multiple reporting quantity information from the terminal device in the CSI report corresponding to the CSI reporting configuration.

[0017] Another aspect of the present invention provides a terminal device, including: a memory storing executable program code; a transceiver and a processor coupled to the memory; the processor and the transceiver being configured to execute the method described in the first aspect of the present invention.

[0018] Another aspect of the present invention provides a network device, comprising: a memory storing executable program code; a transceiver coupled to the memory; the transceiver being configured to perform the method described in the second aspect of the present invention.

[0019] Another aspect of the present invention provides a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the methods described in the first or second aspect of the present invention.

[0020] Another aspect of the present invention provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the methods described in the first or second aspect of the present invention.

[0021] In another aspect, the present invention provides a chip coupled to a memory in a terminal device, such that the chip, when running, calls program instructions stored in the memory, causing the terminal device to execute the method described in the first aspect of the present invention.

[0022] In another aspect, the present invention provides a chip coupled to a memory in the network device, such that the chip, during operation, calls program instructions stored in the memory, causing the network device to perform the method described in the second aspect of the present invention.

[0023] In the technical solution provided by this invention, in this embodiment, a terminal device receives a CSI reporting configuration sent by a network device. The CSI reporting configuration includes multiple reporting quantity information. The terminal device measures the corresponding CSI according to the multiple reporting quantity information. In the CSI report corresponding to the CSI reporting configuration, the terminal device feeds back the CSI corresponding to at least one of the multiple reporting quantity information. That is, by using multiple reporting quantity information in the CSI reporting configuration, the terminal device can feed back one or more single TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. Furthermore, the choice of which CSIs to feed back based on transmission assumptions can be flexibly configured. This allows the network device to dynamically switch between single TRP transmission and multi-TRP joint transmission based on the reported CSIs, resulting in higher downlink throughput. Attached Figure Description

[0024] Figure 1A This is a schematic diagram of downlink noncoherent transmission based on multiple PDCCHs;

[0025] Figure 1B This is a schematic diagram of downlink noncoherent transmission based on multiple PDCCHs;

[0026] Figure 1C This is a schematic diagram of downlink noncoherent transmission based on a single PDCCH;

[0027] Figure 1D A schematic diagram illustrating different periodic CSI reporting methods;

[0028] Figure 2This is a system architecture diagram of the communication system used in the embodiments of the present invention;

[0029] Figure 3 This is a schematic diagram of one embodiment of the CSI reporting method in this application.

[0030] Figure 4 This is a schematic diagram of another embodiment of the CSI reporting method in this application;

[0031] Figure 5 This is a schematic diagram of another embodiment of the CSI reporting method in this application;

[0032] Figure 6 This is a schematic diagram of another embodiment of the CSI reporting method in this application;

[0033] Figure 7 This is a schematic diagram of another embodiment of the CSI reporting method in this application;

[0034] Figure 8 This is a schematic diagram of another embodiment of the CSI reporting method in this application;

[0035] Figure 9 This is a schematic diagram of another embodiment of the CSI reporting method in this application;

[0036] Figure 10 This is a schematic diagram of one embodiment of the terminal device in this application;

[0037] Figure 11 This is a schematic diagram of one embodiment of the network device in this application;

[0038] Figure 12 This is a schematic diagram of another embodiment of the terminal device in this invention;

[0039] Figure 13 This is a schematic diagram of another embodiment of the network device in this invention. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] The following is a brief explanation of the terminology used in the embodiments of this application:

[0042] 1. Downlink noncoherent transmission

[0043] New Radio (NR) systems introduce incoherent downlink and uplink transmissions based on multiple transmission / reception points (TRPs). The backhaul connections between TRPs can be ideal or non-ideal. In an ideal backhaul, TRPs can exchange information quickly and dynamically; in a non-ideal backhaul, due to higher latency, TRPs can only exchange information quasi-statically. In downlink incoherent transmission, multiple TRPs can independently schedule multiple Physical Downlink Shared Channels (PDSCHs) of a single terminal using different control channels, or they can use the same control channel to schedule transmissions from different TRPs. In this latter case, data from different TRPs uses different transport layers; the latter is only suitable for ideal backhaul scenarios.

[0044] For downlink transmissions scheduled using multiple Physical Downlink Control Channels (PDCCHs), the scheduled PDSCHs can be transmitted in the same time slot or in different time slots. The terminal needs to support simultaneous reception of PDCCHs and PDSCHs from different TRPs. When the terminal sends back Acknowledgement (ACK) / NACK and Channel State Information (CSI), it can send the ACK / NACK and CSI back to the different TRPs transmitting the corresponding PDSCHs (e.g., TRPs). Figure 1A The diagram shown illustrates downlink incoherent transmission based on multiple PDCCHs. It can also be combined and reported to a single TRP (such as...). Figure 1BThe diagram illustrates downlink noncoherent transmission based on multiple PDCCHs. The former can be applied to both ideal backhaul and non-ideal backhaul scenarios, while the latter can only be used in ideal backhaul scenarios. Downlink control information (DCI) used for scheduling PDSCHs transmitted by different TRPs can be carried by different Control Resource Sets (CORESETs). That is, the network side configures multiple CORESETs, and each TRP uses its own CORESET for scheduling, thus different TRPs can be distinguished by CORESETs. For example, the network device can configure a CORESET group index for each CORESET, with different indices corresponding to different TRPs. When the terminal feeds back CSI, it needs to feed back the CSI corresponding to each TRP separately. The CSI includes a Rank Indicator (RI), a Precoding Matrix Indicator (PMI), and a Channel Quality Indicator (CQI), which can be used for downlink transmission scheduling for their respective TRPs.

[0045] For multi-TRP downlink transmissions scheduled using a single PDCCH, a single DCI can schedule multiple transport layers from different TRPs. These transport layers from different TRPs use different Demodulation Reference Signal (DMRS) ports within different Code Division Multiplexing (CDM) groups and employ different Transmission Configuration Indication (TCI) states. Network devices need to indicate the DMRS ports from different CDM groups and their corresponding TCI states within a single DCI to support different DMRS ports using different beams for transmission. In this scenario, Hybrid Automatic Repeat Request (HARQ)-ACK feedback and CSI reporting can reuse mechanisms from existing protocols. This approach is only suitable for ideal backhaul scenarios. Figure 1C The diagram shown is a schematic of downlink noncoherent transmission based on a single PDCCH.

[0046] 2. Downlink CSI reporting

[0047] To enable network devices to perform reasonable scheduling, terminals need to report downlink channel state information (CSI) so that the base station can determine the terminal's scheduling information, such as the transmission layer number, precoding matrix, transmit beam, and modulation / coding scheme. Specifically, the terminal's CSI reporting is based on the CSI reporting configuration indicated by the network device. The uplink resources used by the terminal for CSI reporting and the downlink reference signal used for CSI measurement are both indicated through the CSI reporting configuration. Each CSI reporting configuration corresponds to one CSI report, and each CSI report can include different information such as CSI-RS Resource Indicator (CRI), RI, PMI, and CQI. Specifically, the content / information included in the CSI is determined by the report quantity information in the CSI reporting configuration. The report quantity information can indicate one of the following report quantities (see 3GPP TS38.331 for details):

[0048]

[0049] It should be noted that, using cri-RI-PMI-CQI as an example, the reported quantity information includes: one cri, one RI, one PMI, and one CQI, where "-" means "and". Other expressions can be referred to in this explanation, and will not be elaborated on further below. "i1" represents a broadband PMI indication.

[0050] Among them, the CSI-RS Resource Indicator (CRI) is used to determine the CSI-RS resource currently used for channel measurement and the Interference Measurement Resource (IMR) currently used for interference measurement from multiple CSI-RS resources;

[0051] RI is used to report the recommended number of transport layers;

[0052] PMI is used to determine the recommended precoding matrix from a predefined codebook;

[0053] CQI is used to report the current channel quality and can be determined based on the signal-to-interference plus-noise ratio (SINR) estimated by the terminal. The channel component of SINR is determined based on the non-zero power CSI-RS configured by the network for channel measurement, while the interference component is determined based on the CSI-IM or non-zero power CSI-RS configured by the network for interference measurement. CQI is calculated based on the reported RI and PMI.

[0054] The Reference Signal Received Power (RSRP) is used to report the RSRP of the synchronization signal and physical broadcast channel (PBCH) block (SSB) or CSI-RS corresponding to the fed-back index, so as to determine the beam used for downlink transmission on the network side.

[0055] The Layer indicator (LI) is used to report the index of the transport layer associated with the Phase Tracking Reference Signal (PTRS).

[0056] Terminal CSI reporting can be done in three periodic ways: periodic CSI, quasi-continuous CSI, and aperiodic CSI. For example... Figure 1D The diagram illustrates different periodic CSI reporting methods. Periodic CSI is transmitted on the PUCCH, and its CSI reporting configuration is configured by Radio Resource Control (RRC). After receiving the corresponding RRC configuration, the terminal periodically reports the CSI. Quasi-persistent CSI can be transmitted on either the PUCCH or PUSCH. The CSI reporting configuration corresponding to CSI transmitted on the PUCCH is pre-configured by RRC signaling and activated or deactivated by Media Access Control (MAC) layer signaling. The CSI reporting configuration corresponding to CSI transmitted on the PUSCH is dynamically indicated (activated or deactivated) by DCI signaling. After receiving activation or indication signaling from the network configuration, the terminal periodically transmits CSI on the PUCCH or PUSCH until it receives deactivation signaling and then stops reporting. Non-periodic CSI reporting also pre-configures its CSI reporting configuration via RRC signaling. Part of the configuration can be activated by MAC layer signaling, and the CSI trigger signaling in the DCI indicates the CSI reporting configuration used for CSI reporting. After receiving the CSI trigger signaling, the terminal reports the corresponding CSI on the scheduled PUSCH in one go according to the indicated CSI reporting configuration.

[0057] When a CSI carries a large number of bits, it can be divided into two parts to prioritize the transmission of important CSI information. For different types of codebooks, the information contained in CSI Part 1 and Part 2 is shown in Table 1. Part 1 has a fixed number of bits and carries a small amount of important information such as RI and CQI. Part 2 has a number of bits determined by Part 1 and carries more information such as PMI. When the code rate of the PUSCH / PUCCH carrying CSIs exceeds a certain value, the terminal needs to discard some information in Part 2 of CSI to ensure the transmission performance of PUSCH / PUCCH, at least keeping the code rate within a reasonable range. Specifically, information in Part 1 of CSI is not discarded; in Part 2 of CSI, lower-priority CSIs are discarded first based on the CSI reporting priority. The CSI reporting priority is determined by the periodicity of the CSI, the content of the CSI report, the carrier corresponding to the CSI report, and the ID configured for the CSI report.

[0058]

[0059] Table 1

[0060] In existing technologies, the terminal reports one CSI for each CSI reporting configuration. This CSI is calculated based on the channel measurement resources and interference measurement resources configured by the network and can only be used to obtain channel information for a single TRP under a single transmission scheme assumption. To simultaneously support single-TRP transmission and multi-TRP downlink non-coherent joint transmission (NC-JT), the network device needs to instruct the terminal to report multiple CSIs based on different transmission scheme assumptions. Typically, the network device needs to configure multiple CSI reporting configurations; some configurations correspond to single-TRP transmission, and some correspond to multi-TRP NC-JT, but the measurement resources corresponding to these configurations are the same. This reporting method requires multiple sets of CSI reporting configurations and incurs significant CSI reporting overhead, thus wasting downlink signaling and affecting uplink channel transmission performance; moreover, it introduces a large CSI feedback delay, thereby affecting downlink transmission performance.

[0061] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Wireless Fidelity (WF). Fidelity (WiFi), 5th-Generation (5G) communication systems, or other communication systems.

[0062] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.

[0063] Optionally, the communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, or standalone (SA) network deployment scenarios.

[0064] Optionally, the communication system in this application embodiment can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.

[0065] This application describes various embodiments in conjunction with network devices and terminal devices. The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0066] Terminal devices can be stations (STAION, ST) in WLANs, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolved Public Land Mobile Network (PLMN) networks, etc.

[0067] In the embodiments of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0068] In the embodiments of this application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0069] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0070] In the embodiments of this application, the network device can be a device for communicating with mobile devices. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a vehicle-mounted device, wearable device, or a network device (gNB) in an NR network, or a network device in a future evolved PLMN network or an NTN network, etc.

[0071] By way of example and not limitation, in this embodiment, the network device may have mobility characteristics; for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, or other similar locations.

[0072] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0073] like Figure 2 The diagram shown illustrates the system architecture of the communication system used in this embodiment of the invention. This communication system may include network devices, which can communicate with terminal devices (or communication terminals, terminals). The network devices can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area. Figure 2 An exemplary embodiment shows one network device and two terminal devices. Optionally, the communication system may include multiple network devices, and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this. Optionally, the communication system may also include other network entities such as a network controller and a mobility management entity. This application embodiment does not limit this.

[0074] Network equipment can be further divided into access network equipment and core network equipment. That is, the wireless communication system also includes multiple core networks used to communicate with the access network equipment. Access network equipment can be evolved Node Bs (eNBs or e-NodeBs) in Long-Term Evolution (LTE), Next-Generation Radio (NR) (mobile communication system), or Authorized Auxiliary Access Long-Term Evolution (LAA-LTE) systems, such as macro base stations, micro base stations (also called "small base stations"), pico base stations, access points (APs), transmission points (TPs), or new generation Node Bs (gNodeBs).

[0075] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 2 Taking the communication system shown as an example, the communication equipment may include network devices and terminal devices with communication functions. The network devices and terminal devices may be the specific devices described in the embodiments of the present invention, which will not be repeated here. The communication equipment may also include other devices in the communication system, such as network controllers, mobility management entities and other network entities, which are not limited in this application embodiment.

[0076] The technical solution of this application will be further described below by way of embodiments.

[0077] Example 1: As Figure 3 The diagram shown is a schematic representation of an embodiment of the CSI reporting method in this application, which may include:

[0078] 301. The terminal device receives the CSI reporting configuration (CSI-ReportConfig) sent by the network device, wherein the CSI reporting configuration includes multiple reporting quantity information (reportQuantity).

[0079] Optionally, the two reported quantity information includes a first reported quantity information (reportQuantity0) and a second reported quantity information (reportQuantity1), or the multiple reported quantity information includes a first reported quantity information, a second reported quantity information, and a third reported quantity information.

[0080] I. The two reported quantity information includes the first reported quantity information and the second reported quantity information.

[0081] (1) The first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities:

[0082] 1. No content;

[0083] 2. CRI-RI-PMI-CQI;

[0084] 3. CRI-RI-i1;

[0085] 4. CRI-RI-i1-CQI;

[0086] 5. CRI-RI-CQI;

[0087] 6. CRI-RSRP;

[0088] 7. SSB-index-RSRP;

[0089] 8. CRI-RI-LI-PMI-CQI;

[0090] 9. 2CRI-2RI-2PMI-CQI;

[0091] 10. CRI-2RI-2PMI-CQI;

[0092] 11. 2RI-2PMI-CQI;

[0093] 12. 2CRI-2RI-CQI;

[0094] 13. CRI-2RI-CQI;

[0095] 14. 2RI-CQI;

[0096] 15. 2CRI-2RI-2LI-2PMI-CQI;

[0097] 16. CRI-2RI-2LI-2PMI-CQI;

[0098] 17. 2RI-2LI-2PMI-CQI;

[0099] 18. 2CRI-2RSRP;

[0100] 19. 2SSB-index-2RSRP;

[0101] 20. 2CRI-2RI-2PMI-2CQI;

[0102] 21. 2CRI-2RI-2CQI;

[0103] 22. 2CRI-2RI-2LI-2PMI-2CQI;

[0104] 23. CRI-nRI-nPMI-CQI;

[0105] 24. CRI-nRI-CQI;

[0106] 25. CRI-nRI-nLI-nPMI-CQI;

[0107] 26. nCRI-nRI-nPMI-CQI;

[0108] 27. nCRI-nRI-CQI;

[0109] 28. nCRI-nRI-nLI-nPMI-CQI;

[0110] The value of n is determined by the terminal device. Optionally, the value of n is 1 or 2.

[0111] The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single channel measurement resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

[0112] It should be noted that in sections 1-22, the number of CRI, RI, LI, PMI, CQI, RSRP, and SSB has been determined by the network device. In sections 23-28, the number of CRI, RI, LI, PMI, and CQI is determined by the terminal device.

[0113] Furthermore, the reported quantities corresponding to 23-28 can also be understood as the recommended first measurement hypothesis and the corresponding CSI. The first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single Channel Measurement Resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

[0114] (2) The second reporting quantity information indicates the reporting quantity in the second reporting quantity set, which includes at least one of the following reporting quantities:

[0115] 1. No content;

[0116] 2. 2CRI-2RI-2PMI-CQI;

[0117] 3. CRI-2RI-2PMI-CQI;

[0118] 4. 2RI-2PMI-CQI;

[0119] 5. 2CRI-2RI-CQI;

[0120] 6. CRI-2RI-CQI;

[0121] 7. 2RI-CQI;

[0122] 8. 2CRI-2RI-2LI-2PMI-CQI;

[0123] 9. CRI-2RI-2LI-2PMI-CQI;

[0124] 10. 2RI-2LI-2PMI-CQI;

[0125] 11. CRI-RI-PMI-CQI;

[0126] 12. CRI-RI-CQI;

[0127] 13. CRI-RI-LI-PMI-CQI;

[0128] 14. 2CRI-2RI-2PMI-2CQI;

[0129] 15. 2RI-2PMI-2CQI;

[0130] 16. 2CRI-2RI-2CQI;

[0131] 17. 2RI-2CQI;

[0132] 18. 2CRI-2RI-2LI-2PMI-2CQI;

[0133] 19. 2RI-2LI-2PMI-2CQI;

[0134] The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

[0135] II. The multiple reported data include first reported data, second reported data, and third reported data.

[0136] (1) The first and second reported quantity information can be referred to the above description, and will not be repeated here.

[0137] (2) The third reporting quantity information indicates the reporting quantity in the third reporting quantity set, which includes at least one of the following reporting quantities:

[0138] 1. No content;

[0139] 2. CRI-2RI-2PMI-CQI;

[0140] 3. 2RI-2PMI-CQI;

[0141] 4. CRI-2RI-CQI;

[0142] 5. 2RI-CQI;

[0143] 6. CRI-2RI-2LI-2PMI-CQI;

[0144] 7. 2RI-2LI-2PMI-CQI;

[0145] 8. CRI-RI-PMI-CQI;

[0146] 9. CRI-RI-CQI;

[0147] 10. CRI-RI-LI-PMI-CQI.

[0148] (3) Optionally, the second set of reports contains the same number of reports as the third set of reports.

[0149] (4) Optionally, when none of the plurality of reported quantity information indicates "no content", at least two of the plurality of reported quantity information indicate the same reported quantity.

[0150] 302. The terminal device measures the corresponding CSI according to the multiple reported quantity information.

[0151] Optionally, when any one of the reported quantities indicates that the reported quantity includes two sets of {RI, PMI} or two sets of {CRI, RI, PMI, CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

[0152] The two sets of {RI, PMI} can also be represented as 2RI-2PMI; the two sets of {CRI, RI, PMI, CQI} can also be represented as 2CRI-2RI-2PMI-2CQI. The CSI corresponding to the reported quantities that include 2RI-2PMI or 2CRI-2RI-2PMI-2CQI in the first, second, or third reported quantity set can all be obtained based on different CMR measurements.

[0153] Optionally, the CSI corresponding to at least two of the multiple reported data points is obtained based on the same CMR measurement. That is, the terminal device measures the corresponding CSI according to the multiple reported data points, which may include: the terminal device measuring the CSI corresponding to at least two of the multiple reported data points based on the same CMR measurement.

[0154] Optionally, the terminal device measuring the corresponding CSI based on the plurality of reported data may include: the terminal device measuring the CSI corresponding to the reported data that does not indicate no content among the plurality of reported data. That is, if a reported data indicates no content, the terminal device does not need to measure the CSI corresponding to that reported data.

[0155] 303. In the CSI reporting configuration corresponding to the CSI reporting, the terminal device feeds back at least one of the multiple reporting quantity information corresponding to the CSI.

[0156] It is understood that the terminal device will report at least one CSI corresponding to the multiple reported quantity information in the same CSI report.

[0157] In the CSI reporting configuration corresponding to the CSI reporting, the terminal device feeds back the CSI corresponding to at least one of the multiple reporting quantity information, which may include, but is not limited to, the following implementation methods:

[0158] (1) The terminal device cascades the CSIs corresponding to the multiple reported quantity information according to the configuration order of the multiple reported quantity information, and then feeds them back in the CSI report corresponding to the CSI reporting configuration.

[0159] (2) The terminal device reports the CSIs corresponding to the CSIs it configures, and discards them sequentially according to the configuration order of the multiple reported information; the terminal device then returns the discarded CSIs. That is, when some CSIs in the CSI reports need to be discarded, the terminal device discards them sequentially according to the configuration order of the multiple reported information.

[0160] (3) The terminal device receives the reporting type information pre-configured by the network device; the terminal device determines whether to use a first reporting type or a second reporting type according to the reporting type information, and reports CSI according to the determined reporting type, wherein the first reporting type is to report the CSI corresponding to the plurality of reporting quantity information, and the second reporting type is to select one CSI corresponding to the reporting quantity information from the CSI corresponding to the plurality of reporting quantity information for reporting.

[0161] Optionally, when the terminal device determines to use the second reporting type, the terminal device reports an indication of the selected reporting quantity information, or an indication of the CSI identifier corresponding to the selected reporting quantity information.

[0162] Optionally, the second reporting type is to select the best CSI corresponding to the reported quantity information from the CSIs corresponding to the plurality of reported quantity information and report it.

[0163] (4) The terminal device selects a reporting type from the first reporting type and the second reporting type, and includes the indication information of the selected reporting type in the CSI report; wherein, the first reporting type is to report the CSI corresponding to the plurality of reporting quantity information, and the second reporting type is to select a CSI corresponding to the reporting quantity information from the CSI corresponding to the plurality of reporting quantity information for reporting.

[0164] Optionally, the second reporting type is to select the best CSI corresponding to the reported quantity information from the CSIs corresponding to the plurality of reported quantity information and report it.

[0165] (5) The terminal device, in the CSI reporting, does not indicate the CSI corresponding to the reported quantity information that has no content among the multiple reported quantity information. That is, if a reported quantity information indicates no content, the terminal device does not need to report the CSI corresponding to that reported quantity information.

[0166] In this embodiment, multiple reporting information in the CSI reporting configuration allows the terminal device to report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. The specific CSIs reported based on transmission assumptions can be flexibly configured. This allows the network device to dynamically switch between single-TRP and multi-TRP joint transmissions based on the reported CSIs, resulting in higher downlink throughput. Furthermore, configuring some reporting information to have no content ensures good backward compatibility, allowing a fallback to existing CSI reporting methods.

[0167] Example 2: Figure 4 The diagram shown is a schematic representation of another embodiment of the CSI reporting method in this application, which may include:

[0168] 401. The terminal device receives the CSI reporting configuration sent by the network device, wherein the CSI reporting configuration includes two reporting quantity information.

[0169] Optionally, the terminal device receives the configuration reported by the network device via CSI signaling from higher layers.

[0170] Optionally, the two reported quantity information includes a first reported quantity information (reportQuantity0) and a second reported quantity information (reportQuantity1).

[0171] (1) Optionally, the first reporting quantity information (reportQuantity0) indicates a reporting quantity in a first reporting quantity set, the first reporting quantity set including:

[0172] 1. No content;

[0173] 2. CRI-RI-PMI-CQI;

[0174] 3. CRI-RI-i1;

[0175] 4. CRI-RI-i1-CQI;

[0176] 5. CRI-RI-CQI;

[0177] 6. CRI-RI-LI-PMI-CQI;

[0178] 7. CRI-RSRP;

[0179] 8. SSB-index-RSRP;

[0180] 9. CRI-2RI-2PMI-CQI;

[0181] 10. CRI-2RI-CQI;

[0182] 11.CRI-2RI-2LI-2PMI-CQI;

[0183] 12. CRI-nRI-nPMI-CQI;

[0184] 13. CRI-nRI-CQI;

[0185] 14.CRI-nRI-nLI-nPMI-CQI.

[0186] Among them, 1-8 represent the reported quantities that can be indicated by the reported quantity information in the existing protocol. The corresponding CSI is obtained based on a single CMR measurement, corresponding to the measurement assumption of a single TRP transmission. 9-11 represent the CSI content reported under the measurement assumption of multiple TRPs transmitting NC-JT. The corresponding CSI is obtained based on multiple CMRs (CMRs in different CMR groups). 12-14 represent the best measurement result selected by the terminal device from the best CSI measurement result based on a single CMR (corresponding to the best measurement assumption of a single TRP, corresponding to n=1) and the best CSI measurement result based on multiple CMRs (corresponding to the best NC-JT measurement assumption of multiple TRPs, corresponding to n=2). When the first reported quantity information indicates the reported quantity in 12-14, the terminal device also needs to report the currently used measurement assumption (one of the best measurement assumption of a single TRP and the best NC-JT measurement assumption, i.e., n=1 or n=2).

[0187] CRI-RI-PMI-CQI indicates that the terminal device needs to report one CRI (only when multiple CSI-RS resources are configured), one RI, one PMI and one CQI. CRI-2RI-2PMI-CQI indicates that the terminal device needs to report one CRI, two RIs, two PMIs and one CQI. It can also be expressed as CRI-RI-RI-PMI-PMI-CQI. CRI-nRI-nPMI-CQI indicates that the terminal device needs to report one CRI, one or two RIs, one or two PMIs and one CQI, and so on.

[0188] The first set of reported quantities may not include CRI-2RI-CQI and CRI-nRI-CQI.

[0189] For any one of 9-14, the reported quantity may not include CRI.

[0190] For example, the first reported quantity information (reportQuantity0) can be the following high-level signaling:

[0191]

[0192] or,

[0193]

[0194] or,

[0195]

[0196]

[0197] (2) Optionally, the second reporting quantity information (reportQuantity1) indicates the reporting quantity in the second reporting quantity set, which includes:

[0198] 1. No content;

[0199] 2. CRI-RI-PMI-CQI;

[0200] 3. CRI-RI-CQI;

[0201] 4. CRI-RI-LI-PMI-CQI;

[0202] 5.2CRI-2RI-2PMI-2CQI;

[0203] 6.2CRI-2RI-2CQI;

[0204] 7.2CRI-2RI-2LI-2PMI-2CQI.

[0205] Among them, CSIs 2-7 are obtained based on a single CMR measurement, corresponding to the CSI content that the terminal device needs to report for a single TRP transmission. The CSIs reported in 2-4 are the best CSI measurement results based on a single CMR (corresponding to the measurement assumption of the best single TRP among the two TRPs), where CRI is used to indicate a recommended CMR (or CMR / IMR combination, corresponding to the recommended TRP), and other CSIs are obtained based on the recommended CMR (or CMR / IMR combination). The reported quantities corresponding to 5-7 include two CSIs (the CSIs of the two TRPs respectively), each CSI is obtained based on a set of CMR measurements. The terminal device reports a recommended CMR within the two CMR groups (i.e., the best CMR of each of the two TRPs) through two CRIs, and other CSIs are obtained based on the recommended CMR (or CMR / IMR combination).

[0206] Among them, 2CRI-2RI-2PMI-2CQI means that the terminal device needs to report two sets of CSI. Each set of CSI includes CRI-RI-PMI-CQI (corresponding to one TRP). Each set of CSI is based on a set of CMR measurements. The network device pre-configures the corresponding two sets of CMR through higher-layer signaling, and so on.

[0207] The second set of reported quantities may not include CRI-RI-CQI and 2CRI-2RI-2CQI.

[0208] For any one of 5-7, the reported quantity may not include CRI.

[0209] For example, the second reported quantity information (reportQuantity1) could be the following high-level signaling:

[0210]

[0211] or,

[0212]

[0213] or,

[0214]

[0215]

[0216] In one implementation, when the first reported quantity information indicates CRI-nRI-nPMI-CQI, CRI-nRI-CQI, or CRI-nRI-nLI-nPMI-CQI, the second reported quantity information can only indicate "no content".

[0217] Based on these two reporting information sets, terminal devices can report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. This allows network devices to dynamically switch between single-TRP transmission and multi-TRP joint transmission based on the reported CSIs, resulting in higher downlink throughput. Specifically, the first reporting information can be used to report CSIs based on traditional single-TRP measurement assumptions, or CSIs based on multi-TRP NC-JT measurement assumptions, or the CSI corresponding to the best measurement assumption among single-TRP and NC-JT assumptions. The second reporting information can be used to report CSIs based on the best single-TRP measurement assumption (i.e., the CSI of the best of the two TRPs), or simultaneously report the CSIs corresponding to each of the two TRPs.

[0218] 402. The terminal device measures the corresponding CSI based on the two reported quantities.

[0219] In one implementation, when the reported quantity includes two sets of RI / PMI, or two sets of CRI / RI / PMI / CQI (including the case where n=2), the two sets of RI / PMI or CRI / RI / PMI / CQI are obtained based on different CMR groups. When the reported quantity includes two sets of RI / PMI and one CQI, the CQI is obtained based on two sets of CMR measurements.

[0220] In one implementation, the CSI corresponding to at least two of the two reported quantity information is obtained based on the same CMR measurement. Specifically, a CMR can be used simultaneously for the measurement assumptions of a single TRP and the measurement assumptions of NC-JT. For example, when the first reported quantity information indicates CRI-2RI-2PMI-CQI or CRI-2RI-CQI or CRI-2RI-2LI-2PMI-CQI, and the second reported quantity information indicates CRI-RI-PMI-CQI or CRI-RI-CQI or CRI-RI-LI-PMI-CQI, the CMR sets used for their corresponding CSI measurements can be the same two sets. For example, when the first reported quantity information indicates CRI-2RI-2PMI-CQI or CRI-2RI-CQI or CRI-2RI-2LI-2PMI-CQI, and the second reported quantity information indicates 2CRI-2RI-2PMI-2CQI or 2CRI-2RI-2CQI or 2CRI-2RI-2LI-2PMI-2CQI, the two CMR sets used for the CSI measurement corresponding to the first reported quantity information are respectively used for the two sets of CSI corresponding to the second reported quantity information to perform CSI measurement.

[0221] In this embodiment, if a reported quantity indicates no content, the terminal device does not need to measure the CSI corresponding to that reported quantity. For example, the network device can be configured to have all reported quantity information indicate "no content," in which case the terminal device does not need to perform CSI measurement; or, only the second reported quantity information can be configured to indicate no content, in which case the terminal device only needs to measure the CSI corresponding to the first reported quantity information. In this way, this CSI feedback method can fall back to the CSI feedback method of the current protocol, thus possessing backward compatibility.

[0222] 403. The terminal device shall report the CSI corresponding to at least one of the two reported quantity information in the same CSI report.

[0223] Optionally, if the terminal device needs to report the CSIs corresponding to the two reported quantity information items, the CSIs corresponding to the two reported quantity information items can be concatenated according to the configuration order of the two reported quantity information items and then reported in the same CSI report. The concatenation method can be that the CSI corresponding to the reported quantity information item with the earlier configuration order is reported first. For example, assuming that the two reported quantity information items are reportQuantity0 and reportQuantity1 (reportQuantity0 is configured first), and the corresponding CSIs are CSI0 and CSI1, the terminal device can concatenate these two CSIs in the order {CSI0, CSI1} and report them in the same CSI.

[0224] Optionally, when some CSIs in the CSI reports need to be discarded, they are discarded sequentially according to the configuration order of the two reported quantity information. For example, when the bitrate of the PUSCH / PUCCH carrying the CSI reports exceeds a certain threshold, some of the CSIs need to be discarded to ensure that the bitrate after discarding does not exceed the threshold. Assuming that the two reported quantity information are reportQuantity0 and reportQuantity1 (reportQuantity0 is configured first), and the corresponding CSIs are CSI0 and CSI1, then when discarding CSIs, the CSIs corresponding to the reported quantity information with the later configuration order (i.e., CSI1) can be discarded first, and the CSIs corresponding to the reported quantity information with the earlier configuration order (i.e., CSI0) can be discarded when needed, until the bitrate meets the threshold.

[0225] In the above methods, if a reported quantity information indicates no content, the terminal device does not need to report the CSI corresponding to that reported quantity information. For example, the network device can be configured to indicate "no content" for all reported quantity information, in which case the terminal device does not need to report any CSI; or, only the second reported quantity information can be configured to indicate no content, in which case the terminal device only needs to report the CSI corresponding to the first reported quantity information.

[0226] In this embodiment, multiple reporting information in the CSI reporting configuration allows the terminal device to report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. The specific CSIs reported based on transmission assumptions can be flexibly configured. This allows the network device to dynamically switch between single-TRP and multi-TRP joint transmissions based on the reported CSIs, resulting in higher downlink throughput. Furthermore, configuring some reporting information to have no content ensures good backward compatibility, allowing a fallback to existing CSI reporting methods.

[0227] Example 3: Figure 5 The diagram shown is a schematic representation of another embodiment of the CSI reporting method in this application, which may include:

[0228] 501. The terminal device receives the CSI reporting configuration sent by the network device, wherein the CSI reporting configuration includes two reporting quantity information.

[0229] Optionally, the terminal device receives the configuration reported by the network device via CSI signaling from higher layers.

[0230] Optionally, the two reported quantity information includes a first reported quantity information (reportQuantity0) and a second reported quantity information (reportQuantity1).

[0231] (1) Optionally, the first reporting quantity information (reportQuantity0) indicates a reporting quantity in a first reporting quantity set, the first reporting quantity set including:

[0232] 1. No content;

[0233] 2. CRI-RI-PMI-CQI;

[0234] 3. CRI-RI-i1;

[0235] 4. CRI-RI-i1-CQI;

[0236] 5. CRI-RI-CQI;

[0237] 6. CRI-RI-LI-PMI-CQI;

[0238] 7. CRI-RSRP;

[0239] 8. SSB-index-RSRP;

[0240] 9. CRI-2RI-2PMI-CQI;

[0241] 10. CRI-2RI-CQI;

[0242] 11. CRI-2RI-2LI-2PMI-CQI.

[0243] Among them, 1-8 are the reported quantities in the existing protocol, corresponding to CSI reporting based on the single TRP measurement assumption, and 9-11 correspond to CSI based on the NC-JT measurement assumption. For the specific meaning, please refer to the description of Embodiment 2 above, which will not be repeated here.

[0244] CRI-RI-PMI-CQI indicates that the terminal device needs to report one CRI (only when multiple CSI-RS resources are configured), one RI, one PMI and one CQI. CRI-2RI-2PMI-CQI indicates that the terminal device needs to report one CRI, two RIs, two PMIs and one CQI. It can also be expressed as CRI-RI-RI-PMI-PMI-CQI, and so on.

[0245] The first set of reported quantities may not include CRI-2RI-CQI.

[0246] For any one of 9-11, the reported quantity may not include CRI.

[0247] For example, the first reported quantity information (reportQuantity0) can be the following high-level signaling:

[0248]

[0249] or,

[0250]

[0251]

[0252] or,

[0253]

[0254] (2) Optionally, the second reporting quantity information (reportQuantity1) indicates the reporting quantity in the second reporting quantity set, which includes:

[0255] 1. No content;

[0256] 2. CRI-RI-PMI-CQI;

[0257] 3. CRI-RI-CQI;

[0258] 4. CRI-RI-LI-PMI-CQI;

[0259] 5. 2CRI-2RI-2PMI-2CQI;

[0260] 6. 2CRI-2RI-2CQI;

[0261] 7. 2CRI-2RI-2LI-2PMI-2CQI;

[0262] 8. CRI-2RI-2PMI-CQI;

[0263] 9. CRI-2RI-CQI;

[0264] 10. CRI-2RI-2LI-2PMI-CQI.

[0265] Among them, 2-4 correspond to CSI reports based on the best single TRP measurement assumption, 5-7 correspond to two CSI reports based on the single TRP measurement assumption, and 8-10 correspond to CSI reports based on the NC-JT measurement assumption. The meaning of each reported quantity is as described in the above embodiment 2, and will not be repeated here.

[0266] The second set of reported quantities may not include CRI-RI-CQI, 2CRI-2RI-2CQI, and CRI-2RI-CQI.

[0267] For any one of 5-10, the reported quantity may not include CRI.

[0268] For example, the second reported quantity information (reportQuantity1) could be the following high-level signaling:

[0269]

[0270] or,

[0271]

[0272] or,

[0273]

[0274] Based on these two reporting information sets, terminal devices can report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. This allows network devices to dynamically switch between single-TRP transmission and multi-TRP joint transmission based on the reported CSIs, resulting in higher downlink throughput. Specifically, the first reporting information can be used to report CSIs based on traditional single-TRP measurement assumptions or CSIs based on multi-TRP NC-JT measurement assumptions. The second reporting information can be used to report CSIs based on the best single-TRP measurement assumption (i.e., the CSI of the best of the two TRPs), or to report the CSIs corresponding to each of the two TRPs simultaneously, or to report CSIs based on NC-JT measurement assumptions.

[0275] 502. The terminal device measures the corresponding CSI based on the two reported quantities.

[0276] For reference Figure 4 The description of step 402 in the illustrated embodiment will not be repeated here.

[0277] 503. The terminal device shall report the CSI corresponding to at least one of the two reported quantity information in the same CSI report.

[0278] Specifically, the terminal device receives pre-configured reporting type information from the network device, which may be included in the CSI reporting configuration (CSI-ReportConfig). The terminal device determines whether to use reporting type 1 or reporting type 2 for CSI reporting based on this information, and then performs the CSI reporting according to the determined type. Reporting type 1 involves reporting the CSI corresponding to each of the multiple reporting quantities separately, while reporting type 2 involves selecting the optimal CSI from the multiple reporting quantities for reporting.

[0279] In one implementation, when the terminal device reports the CSIs corresponding to the multiple reported quantity information respectively, the CSIs corresponding to the two reported quantity information can be concatenated according to the configuration order of the two reported quantity information and then reported in the same CSI report. The concatenation method can be that the CSI corresponding to the reported quantity information with the earlier configuration order is followed by the one with the later configuration order. For example, assuming the two reported quantity information are reportQuantity0 and reportQuantity1 (reportQuantity0 has the earlier configuration order), and their corresponding CSIs are CSI0 and CSI1 respectively, the terminal device will concatenate these two CSIs in the order {CSI1, CSI0} and report them in the same CSI.

[0280] In one implementation, when the terminal device selects the optimal CSI corresponding to the reported quantity information from the plurality of CSIs, the unselected CSIs are not reported. Furthermore, the terminal device simultaneously reports indication information of the selected reported quantity information, or indication information of the CSI corresponding to the selected reported quantity information. For example, the terminal device can use 1 bit of information in the CSI to indicate whether the currently reported CSI corresponds to reportQuantity0 or reportQuantity1. If the CSI includes CSI Part 1 and CSI Part 2, the indication information can be included in CSI Part 1.

[0281] In the above methods, if a reported quantity information indicates no content, the terminal device does not need to report the CSI corresponding to that reported quantity information. For example, the network device can be configured to indicate "no content" for all reported quantity information, in which case the terminal device does not need to report any CSI; or, only the second reported quantity information can be configured to indicate no content, in which case the terminal device only needs to report the CSI corresponding to the first reported quantity information. In the latter case, the reporting type information will have no effect.

[0282] In this embodiment, multiple reporting information in the CSI reporting configuration allows the terminal device to report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. The specific CSIs reported based on transmission assumptions can be flexibly configured. This allows the network device to dynamically switch between single-TRP and multi-TRP joint transmissions based on the reported CSIs, resulting in higher downlink throughput. Furthermore, configuring some reporting information to have no content ensures good backward compatibility, allowing a fallback to existing CSI reporting methods.

[0283] Example 4: Figure 6 The diagram shown is a schematic representation of another embodiment of the CSI reporting method in this application, which may include:

[0284] 601. The terminal device receives the CSI reporting configuration sent by the network device, wherein the CSI reporting configuration includes two reporting quantity information.

[0285] Optionally, the terminal device receives the configuration reported by the network device via CSI signaling from higher layers.

[0286] Optionally, the two reported quantity information includes a first reported quantity information (reportQuantity0) and a second reported quantity information (reportQuantity1).

[0287] (1) Optionally, the first reporting quantity information (reportQuantity0) indicates a reporting quantity in a first reporting quantity set, the first reporting quantity set including:

[0288] 1. No content;

[0289] 2. CRI-RI-PMI-CQI;

[0290] 3. CRI-RI-i1;

[0291] 4. CRI-RI-i1-CQI;

[0292] 5. CRI-RI-CQI;

[0293] 6. CRI-RI-LI-PMI-CQI;

[0294] 7. CRI-RSRP;

[0295] 8. SSB-index-RSRP;

[0296] 9. CRI-2RI-2PMI-CQI;

[0297] 10. CRI-2RI-CQI;

[0298] 11. CRI-2RI-2LI-2PMI-CQI;

[0299] 12. 2CRI-2RSRP;

[0300] 13. 2SSB-index-2RSRP.

[0301] In this context, 1-8 represent the reported quantities in the existing protocol, corresponding to CSI reporting based on the single TRP measurement assumption. 9-11 correspond to CSI reporting based on the NC-JT measurement assumption. For specific meanings, please refer to the description in Embodiment 2 above, which will not be repeated here. 12-13 are CSI reporting for beam management of multiple TRPs. The terminal device reports the optimal beams (two in total) corresponding to each of the two TRPs through the CSI-RS resource index or SSB index.

[0302] The first set of reported quantities may not include CRI-2RI-CQI.

[0303] For any one of 9-11, the reported quantity may not include CRI.

[0304] For example, the first reported quantity information (reportQuantity0) can be the following high-level signaling:

[0305]

[0306] or,

[0307]

[0308]

[0309] or,

[0310]

[0311] (2) Optionally, the second reporting quantity information (reportQuantity1) indicates the reporting quantity in the second reporting quantity set, which includes:

[0312] 1. No content;

[0313] 2. CRI-RI-PMI-CQI;

[0314] 3. CRI-RI-CQI;

[0315] 4. CRI-RI-LI-PMI-CQI;

[0316] 5. 2CRI-2RI-2PMI-2CQI;

[0317] 6. 2CRI-2RI-2CQI;

[0318] 7. 2CRI-2RI-2LI-2PMI-2CQI.

[0319] Among them, 2-4 correspond to CSI reports based on the best single TRP measurement assumption, and 5-7 correspond to two CSI reports based on the single TRP measurement assumption. The meaning of each reported quantity is described in the above embodiment 2, and will not be repeated here.

[0320] The second set of reported quantities may not include CRI-RI-CQI, 2CRI-2RI-2CQI, and CRI-2RI-CQI.

[0321] For any one of 5-7, the reported quantity may not include CRI.

[0322] For example, the second reported quantity information (reportQuantity1) could be the following high-level signaling:

[0323]

[0324]

[0325] or,

[0326]

[0327] or,

[0328]

[0329] Based on these two reporting information sets, the terminal device can report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. This allows the network device to dynamically switch between single-TRP transmission and multi-TRP joint transmission based on the reported CSIs, resulting in higher downlink throughput. Specifically, the first reporting information can be used to report CSIs based on traditional single-TRP measurement assumptions, CSIs based on multi-TRP NC-JT measurement assumptions, or CSIs used for beam management in multi-TRPs. The second reporting information can be used to report CSIs based on the best single-TRP measurement assumption (i.e., the CSI of the best of the two TRPs), or to simultaneously report the CSIs corresponding to each of the two TRPs.

[0330] 602. The terminal device measures the corresponding CSI based on the two reported quantities.

[0331] For reference Figure 4 The description of step 402 in the illustrated embodiment will not be repeated here.

[0332] 603. The terminal device shall report the CSI corresponding to at least one of the two reported quantity information in the same CSI report.

[0333] a) In one implementation, the terminal device autonomously selects whether to use reporting type 1 or reporting type 2, and reports the selection result to the network device. Reporting type 1 involves reporting the CSIs corresponding to the plurality of reported quantity information, while reporting type 2 involves selecting the optimal CSI from the plurality of reported quantity information for reporting.

[0334] i: For example, a terminal device can use 1 bit of information in the CSI to indicate whether the currently reported CSI is a type 1 CSI or a type 2 CSI.

[0335] ii: If the CSI includes CSI Part 1 and CSI Part 2, the indication information may be included in CSI Part 1.

[0336] iii: Further, if the terminal device reports a CSI of reporting type 2, the terminal device also reports an indication of the selected reporting quantity information, or an indication of the CSI corresponding to the selected reporting quantity information. For example, the terminal device can use 1 bit of information in the CSI to indicate whether the currently reported CSI corresponds to reportQuantity0 or reportQuantity1. If the CSI includes CSI part 1 and CSI part 2, the indication information can be included in CSI part 1.

[0337] (b) In the above methods, if a reported quantity information indicates no content, the terminal device does not need to report the CSI corresponding to that reported quantity information. For example, the network device can be configured to indicate "no content" for all reported quantity information, in which case the terminal device does not need to report any CSI; or, only the second reported quantity information can be configured to indicate no content, in which case the terminal device only needs to report the CSI corresponding to the first reported quantity information. In this case, the terminal device does not need to include the reporting type information in the CSI.

[0338] In this embodiment, multiple reporting information in the CSI reporting configuration allows the terminal device to report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. The specific CSIs reported based on transmission assumptions can be flexibly configured. This allows the network device to dynamically switch between single-TRP and multi-TRP joint transmissions based on the reported CSIs, resulting in higher downlink throughput. Furthermore, configuring some reporting information to have no content ensures good backward compatibility, allowing a fallback to existing CSI reporting methods.

[0339] Example 5: Figure 7 The diagram shown is a schematic representation of another embodiment of the CSI reporting method in this application, which may include:

[0340] 701. The terminal device receives the CSI reporting configuration sent by the network device, wherein the CSI reporting configuration includes three reporting quantity information.

[0341] Optionally, the terminal device receives the configuration reported by the network device via CSI signaling from higher layers.

[0342] Optionally, the three reporting quantity information includes a first reporting quantity information (reportQuantity0), a second reporting quantity information (reportQuantity1), and a third reporting quantity information (reportQuantity2).

[0343] (1) Optionally, the first reporting quantity information (reportQuantity0) indicates a reporting quantity in a first reporting quantity set, the first reporting quantity set including:

[0344] 1. No content;

[0345] 2. CRI-RI-PMI-CQI;

[0346] 3. CRI-RI-i1;

[0347] 4. CRI-RI-i1-CQI;

[0348] 5. CRI-RI-CQI;

[0349] 6. CRI-RI-LI-PMI-CQI;

[0350] 7. CRI-RSRP;

[0351] 8. SSB-index-RSRP;

[0352] 9. CRI-2RI-2PMI-CQI;

[0353] 10. CRI-2RI-CQI;

[0354] 11. CRI-2RI-2LI-2PMI-CQI;

[0355] 12. CRI-nRI-nPMI-CQI;

[0356] 13. CRI-nRI-CQI;

[0357] 14. CRI-nRI-nLI-nPMI-CQI.

[0358] Among them, 1-8 represent the reported quantities that can be indicated by the reported quantity information in the existing protocol. The corresponding CSI is obtained based on a single CMR measurement, corresponding to the measurement assumption of a single TRP transmission. 9-11 represent the CSI content reported under the measurement assumption of multiple TRPs transmitting NC-JT. The corresponding CSI is obtained based on multiple CMRs (CMRs in different CMR groups). 12-14 represent the best measurement result selected by the terminal device from the best CSI measurement result based on a single CMR (corresponding to the best measurement assumption of a single TRP, corresponding to n=1) and the best CSI measurement result based on multiple CMRs (corresponding to the best NC-JT measurement assumption of multiple TRPs, corresponding to n=2). When the first reported quantity information indicates the reported quantity in 12-14, the terminal device also needs to report the currently used measurement assumption (one of the best measurement assumption of a single TRP and the best NC-JT measurement assumption, i.e., n=1 or n=2).

[0359] CRI-RI-PMI-CQI indicates that the terminal device needs to report one CRI (only when multiple CSI-RS resources are configured), one RI, one PMI and one CQI. CRI-2RI-2PMI-CQI indicates that the terminal device needs to report one CRI, two RIs, two PMIs and one CQI. It can also be expressed as CRI-RI-RI-PMI-PMI-CQI. CRI-nRI-nPMI-CQI indicates that the terminal device needs to report one CRI, one or two RIs, one or two PMIs and one CQI, and so on.

[0360] The first set of reported quantities may not include CRI-2RI-CQI and CRI-nRI-CQI.

[0361] For any one of 9-14, the reported quantity may not include CRI.

[0362] For example, the first reported quantity information (reportQuantity0) can be the following high-level signaling:

[0363]

[0364]

[0365] or,

[0366]

[0367] or,

[0368]

[0369] (2) Optionally, the second reporting quantity information (reportQuantity1) indicates the reporting quantity in the second reporting quantity set, which includes:

[0370] 1. No content;

[0371] 2. CRI-RI-PMI-CQI;

[0372] 3. CRI-RI-CQI;

[0373] 4. CRI-RI-LI-PMI-CQI;

[0374] 5. 2CRI-2RI-2PMI-CQI;

[0375] 6. 2CRI-2RI-CQI;

[0376] 7. 2CRI-2RI-2LI-2PMI-CQI.

[0377] Among them, CSIs 2-4 are obtained based on a single CMR measurement, corresponding to the CSI content that the terminal device needs to report for a single TRP transmission. Specifically, when the third reported quantity information indicates "no content", the CSI reported in 2-4 is the best CSI measurement result based on a single CMR (corresponding to the measurement assumption of the best single TRP among the two TRPs), where CRI is used to indicate a recommended CMR (or CMR / IMR combination, corresponding to the recommended TRP), and other CSIs are obtained based on the recommended CMR (or CMR / IMR combination). Specifically, when the third reported quantity information does not indicate "no content", the CSI reported in 2-4 is the CSI measurement result based on a CMR set (corresponding to the measurement result of the first TRP in the two TRPs), where CRI is used to indicate a recommended CMR (or CMR / IMR combination) in the CMR set, and other CSIs are measured based on the recommended CMR (or CMR / IMR combination); at this time, the CSI corresponding to the third reported quantity information is the CSI measurement result based on another CMR set (corresponding to the measurement result of the second TRP in the two TRPs).

[0378] 5-7 shows the CSI content reported under the measurement assumption of NC-JT transmission from multiple TRPs. The corresponding CSI is obtained based on measurements of multiple CMRs (CMRs in different CMR groups).

[0379] The second set of reported quantities may not include CRI-RI-CQI and 2CRI-2RI-CQI.

[0380] For any one of 5-7, the reported quantity may not include CRI.

[0381] For example, the second reported quantity information (reportQuantity1) could be the following high-level signaling:

[0382]

[0383] or,

[0384]

[0385] or,

[0386]

[0387] (3) Optionally, the third reporting quantity information (reportQuantity2) indicates the reporting quantity in the third reporting quantity set, the third reporting quantity set including:

[0388] 1. No content;

[0389] 2. CRI-RI-PMI-CQI;

[0390] 3. CRI-RI-CQI;

[0391] 4. CRI-RI-LI-PMI-CQI;

[0392] 5. 2CRI-2RI-2PMI-CQI;

[0393] 6. 2CRI-2RI-CQI;

[0394] 7. 2CRI-2RI-2LI-2PMI-CQI.

[0395] The third set of reported data contains the same content as the second set of reported data.

[0396] The third set of reported quantities may not include CRI-RI-CQI and 2CRI-2RI-CQI.

[0397] For any one of 5-7, the reported quantity may not include CRI.

[0398] For example, the third reported quantity information (reportQuantity2) can be the following high-level signaling:

[0399]

[0400]

[0401] or,

[0402]

[0403] or,

[0404]

[0405] Optionally, in one implementation, when none of the plurality of reported quantity information is "no content", at least two of the plurality of reported quantity information indicate the same reported quantity. For example, the first reported quantity information indicates CSI (2CRI-2RI-2PMI-CQI) based on the NC-JT measurement assumption, and the second and third reported quantity information both indicate CSI (CRI-RI-PMI-CQI) based on the single TRP measurement assumption. Alternatively, the third reported quantity information indicates CSI (2CRI-2RI-2PMI-CQI) based on the NC-JT measurement assumption, and the first and second reported quantity information both indicate CSI (CRI-RI-PMI-CQI) based on the single TRP measurement assumption.

[0406] Optionally, in one implementation, when the first reported quantity information indicates CRI-nRI-nPMI-CQI, CRI-nRI-CQI, or CRI-nRI-nLI-nPMI-CQI, that is, when the terminal device selects one of the best measurement results from the best CSI measurement results based on a single CMR (corresponding to n=1) and the best CSI measurement results based on multiple CMRs (corresponding to n=2), the second reported quantity information can only indicate "no content".

[0407] Optionally, based on these three reporting information sets, the terminal device can report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. This allows the network device to dynamically switch between single-TRP transmission and multi-TRP joint transmission based on the reported CSIs, resulting in higher downlink throughput. Specifically, the first reporting information can be used to report CSIs based on traditional single-TRP measurement assumptions, or CSIs based on multi-TRP NC-JT measurement assumptions, or the CSI corresponding to the best measurement assumption among single-TRP and NC-JT assumptions. The second reporting information can be used to report CSIs based on NC-JT measurement assumptions, or the CSI of the best of two TRPs, or the CSI of one of the two TRPs. The third reporting information can be used to report CSIs based on NC-JT measurement assumptions, or the CSI of the other of the two TRPs.

[0408] 702. The terminal device measures the corresponding CSI based on the three reported quantities.

[0409] Specifically, when the reported quantity includes two sets of RI / PMI, or two sets of CRI / RI / PMI / CQI (including the case where n=2), the two sets of RI / PMI or CRI / RI / PMI / CQI are obtained based on different CMR groups. When the reported quantity includes two sets of RI / PMI and one CQI, the CQI is obtained based on the two sets of CMR measurements.

[0410] In one implementation, the CSI corresponding to at least two of the three reported quantities is obtained based on the same CMR measurement. Specifically, a CMR can be used simultaneously for the measurement assumptions of a single TRP and the measurement assumptions of NC-JT. For example, when the first reported quantity indicates CRI-2RI-2PMI-CQI or CRI-2RI-CQI or CRI-2RI-2LI-2PMI-CQI, CSI measurement can be performed using both CMR set 0 and CMR set 1; when the second and third reported quantities both indicate CRI-RI-PMI-CQI or CRI-RI-CQI or CRI-RI-LI-PMI-CQI, their corresponding CSI measurements are performed using CMR set 0 and CMR set 1, respectively.

[0411] In this embodiment, if a reported quantity indicates no content, the terminal device does not need to measure the CSI corresponding to that reported quantity. For example, the network device can be configured to have all reported quantity information indicate "no content," in which case the terminal device does not need to perform CSI measurement; or, only the third reported quantity information can be configured to indicate no content, in which case the terminal device only needs to measure the CSI corresponding to the first and second reported quantity information; or, the second and third reported quantity information can be configured to indicate no content, in which case the terminal device only needs to measure the CSI corresponding to the first reported quantity information. In this way, this CSI feedback method can fall back to the CSI feedback method of the current protocol, thus possessing backward compatibility.

[0412] 703. The terminal device shall report at least one of the three reported quantity information corresponding to the CSI in the same CSI report.

[0413] a) Optionally, if the terminal device needs to report the CSIs corresponding to the three reported quantity information items, the CSIs corresponding to each of the three reported quantity information items can be concatenated according to the configuration order of the three reported quantity information items and reported in the same CSI report. The concatenation method can be to put the CSI corresponding to the reported quantity information item with the earlier configuration order first. For example, assuming the three reported quantity information items are reportQuantity0, reportQuantity1, and reportQuantity2 (reportQuantity0 has the earlier configuration order), and the corresponding CSIs are CSI0, CSI1, and CSI2, the terminal device can concatenate these three CSIs in the order {CSI0, CSI1, CSI2} and report them in the same CSI. In another implementation, the concatenation method can also be to put the CSI corresponding to the reported quantity information item with the earlier configuration order last.

[0414] (b) Optionally, when some CSIs in the CSI reports need to be discarded, they shall be discarded sequentially according to the configuration order of the three reported quantity information. For example, when the bitrate of the PUSCH / PUCCH carrying the CSI reports exceeds a certain threshold, some of the CSIs need to be discarded to ensure that the bitrate after discarding does not exceed the threshold. Assuming that the three reported quantity information are reportQuantity0, reportQuantity1, and reportQuantity2 (reportQuantity0 is configured first), and the corresponding CSIs are CSI0, CSI1, and CSI2, then when discarding CSIs, the CSIs corresponding to the reported quantity information with the later configuration order (i.e., CSI2) can be discarded first, and the CSIs corresponding to the reported quantity information with the earlier configuration order (i.e., CSI1) can be discarded when needed, and so on, until the bitrate meets the threshold.

[0415] c) In the above methods, if a reported quantity information indicates no content, the terminal device does not need to report the CSI corresponding to that reported quantity information. For example, the network device can be configured to indicate "no content" for all reported quantity information, in which case the terminal device does not need to report any CSI; or, only the third reported quantity information can be configured to indicate no content, in which case the terminal device only needs to report the CSI corresponding to the first and second reported quantity information; or, the second and third reported quantity information can be configured to indicate no content, in which case the terminal device only needs to report the CSI corresponding to the first reported quantity information.

[0416] In this embodiment, multiple reporting information in the CSI reporting configuration allows the terminal device to report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. The specific CSIs reported based on transmission assumptions can be flexibly configured. This allows the network device to dynamically switch between single-TRP and multi-TRP joint transmissions based on the reported CSIs, resulting in higher downlink throughput. Furthermore, configuring some reporting information to have no content ensures good backward compatibility, allowing a fallback to existing CSI reporting methods.

[0417] Example 6: Figure 8 The diagram shown is a schematic representation of another embodiment of the CSI reporting method in this application, which may include:

[0418] 801. The terminal device receives the CSI reporting configuration sent by the network device, wherein the CSI reporting configuration includes three reporting quantity information.

[0419] Optionally, the terminal device receives the configuration reported by the network device via CSI signaling from higher layers.

[0420] Optionally, the three reporting quantity information includes a first reporting quantity information (reportQuantity0), a second reporting quantity information (reportQuantity1), and a third reporting quantity information (reportQuantity2).

[0421] (1) Optionally, the first reporting quantity information (reportQuantity0) indicates a reporting quantity in a first reporting quantity set, the first reporting quantity set including:

[0422] 1. No content;

[0423] 2. CRI-RI-PMI-CQI;

[0424] 3. CRI-RI-i1;

[0425] 4. CRI-RI-i1-CQI;

[0426] 5. CRI-RI-CQI;

[0427] 6. CRI-RI-LI-PMI-CQI;

[0428] 7. CRI-RSRP;

[0429] 8. SSB-index-RSRP;

[0430] 9. CRI-2RI-2PMI-CQI;

[0431] 10. CRI-2RI-CQI;

[0432] 11. CRI-2RI-2LI-2PMI-CQI.

[0433] Among them, 1-8 are the reported quantities in the existing protocol, corresponding to CSI reporting based on the single TRP measurement assumption, and 9-11 correspond to CSI based on the NC-JT measurement assumption. For the specific meaning, please refer to the description in Implementation Example 5, which will not be repeated here.

[0434] The first set of reported quantities may not include CRI-2RI-CQI.

[0435] For any one of 9-11, the reported quantity may not include CRI.

[0436] For example, the first reported quantity information (reportQuantity0) can be the following high-level signaling:

[0437]

[0438]

[0439] or,

[0440]

[0441] or,

[0442]

[0443] (2) Optionally, the second reporting quantity information (reportQuantity1) indicates the reporting quantity in the second reporting quantity set, which includes:

[0444] 1. No content;

[0445] 2. CRI-RI-PMI-CQI;

[0446] 3. CRI-RI-CQI;

[0447] 4. CRI-RI-LI-PMI-CQI.

[0448] Among them, CSIs 2-4 are obtained based on a single CMR measurement, corresponding to the CSI content that the terminal device needs to report for a single TRP transmission. Specifically, when the third reported quantity information indicates "no content", the CSI reported in 2-4 is the best CSI measurement result based on a single CMR (corresponding to the measurement assumption of the best single TRP among the two TRPs), where CRI is used to indicate a recommended CMR (or CMR / IMR combination, corresponding to the recommended TRP), and other CSIs are obtained based on the recommended CMR (or CMR / IMR combination). Specifically, when the third reported quantity information does not indicate "no content", the CSI reported in 2-4 is the CSI measurement result based on a CMR set (corresponding to the measurement result of the first TRP in the two TRPs), where CRI is used to indicate a recommended CMR (or CMR / IMR combination) in the CMR set, and other CSIs are measured based on the recommended CMR (or CMR / IMR combination); at this time, the CSI corresponding to the third reported quantity information is the CSI measurement result based on another CMR set (corresponding to the measurement result of the second TRP in the two TRPs).

[0449] The second set of reported quantities may not include CRI-RI-CQI.

[0450] For example, the second reported quantity information (reportQuantity1) could be the following high-level signaling:

[0451]

[0452] or,

[0453]

[0454] (3) Optionally, the third reporting quantity information (reportQuantity2) indicates the reporting quantity in the third reporting quantity set, the third reporting quantity set including:

[0455] 1. No content;

[0456] 2. CRI-RI-PMI-CQI;

[0457] 3. CRI-RI-CQI;

[0458] 4. CRI-RI-LI-PMI-CQI.

[0459] When the third reported quantity information does not indicate "no content", its corresponding CSI is a CSI measurement result based on a CMR set, which is used to report the CSI of another TRP that is different from the second reported quantity information (corresponding to the measurement result of the second TRP among the two TRPs, and different TRPs are represented by different CMR sets).

[0460] The third set of reported quantities may not include CRI-RI-CQI.

[0461] For example, the third reported quantity information (reportQuantity2) can be the following high-level signaling:

[0462]

[0463] or,

[0464]

[0465] In one implementation, when none of the plurality of reported quantity information is "no content", the reported quantity indicated by the second reported quantity information and the third reported quantity information is the same.

[0466] Based on these three reporting information sets, terminal devices can report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. This allows network devices to dynamically switch between single-TRP transmission and multi-TRP joint transmission based on the reported CSIs, resulting in higher downlink throughput. Specifically, the first reporting information can be used to report CSIs based on the traditional single-TRP measurement assumption or the NC-JT measurement assumption based on multiple TRPs; the second reporting information can be used to report the CSI of the best of two TRPs, or the CSI of one of the two TRPs; and the third reporting information can be used to report the CSI of the other of the two TRPs.

[0467] 802. The terminal device measures the corresponding CSI based on the three reported quantities.

[0468] For specific implementation methods, please refer to Figure 7 The description of step 702 in the illustrated embodiment will not be repeated here.

[0469] 803. The terminal device shall report at least one of the three reported quantity information corresponding to the CSI in the same CSI report.

[0470] i: Optionally, the terminal device receives pre-configured reporting type information from the network device, which may be included in the CSI reporting configuration (CSI-ReportConfig). The terminal device determines whether to use reporting type 1 or reporting type 2 for CSI reporting based on this information, and performs CSI reporting according to the determined type. Reporting type 1 involves reporting the CSI corresponding to each of the multiple reporting quantities separately, while reporting type 2 involves selecting the optimal CSI from the multiple reporting quantities for reporting.

[0471] ii: Optionally, in one implementation, when the terminal device reports the CSI corresponding to each of the multiple reported quantity information respectively, the CSI corresponding to each of the three reported quantity information can be cascaded according to the configuration order of the three reported quantity information and fed back in the same CSI report.

[0472] iii: Optionally, in one implementation, when the terminal device selects the best CSI corresponding to the reported quantity information from the multiple CSIs corresponding to the reported quantity information for reporting, the unselected CSIs are not reported. If none of the reported quantity information indicates no content, the terminal device selects the best CSI from the three CSIs corresponding to the reported quantity information for reporting; if only the third reported quantity information is configured to indicate no content, the terminal device selects the best CSI from the first and second reported quantity information for reporting; if both the second and third reported quantity information indicate no content, the reporting type information will not be effective. Further, the terminal device simultaneously reports the indication information of the selected reported quantity information, or the indication information of the CSI corresponding to the selected reported quantity information. For example, a terminal device can use 1 bit of information in the CSI to indicate whether the currently reported CSI corresponds to reportQuantity0 or reportQuantity1, or use 2 bits of information in the CSI to indicate whether the currently reported CSI corresponds to reportQuantity0, reportQuantity1, or reportQuantity2. If the CSI includes CSI Part 1 and CSI Part 2, this indication information can be included in CSI Part 1.

[0473] In this embodiment, multiple reporting information in the CSI reporting configuration allows the terminal device to report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. The specific CSIs reported based on transmission assumptions can be flexibly configured. This allows the network device to dynamically switch between single-TRP and multi-TRP joint transmissions based on the reported CSIs, resulting in higher downlink throughput. Furthermore, configuring some reporting information to have no content ensures good backward compatibility, allowing a fallback to existing CSI reporting methods.

[0474] Example 7: Figure 9 The diagram shown is a schematic representation of another embodiment of the CSI reporting method in this application, which may include:

[0475] 901. The terminal device receives the CSI reporting configuration sent by the network device, wherein the CSI reporting configuration includes three reporting quantity information.

[0476] Optionally, the terminal device receives the configuration reported by the network device via CSI signaling from higher layers.

[0477] Optionally, the three reporting quantity information includes a first reporting quantity information (reportQuantity0), a second reporting quantity information (reportQuantity1), and a third reporting quantity information (reportQuantity2).

[0478] (1) Optionally, the first reporting quantity information (reportQuantity0) indicates a reporting quantity in a first reporting quantity set, the first reporting quantity set including:

[0479] 1. No content;

[0480] 2. CRI-RI-PMI-CQI;

[0481] 3. CRI-RI-i1;

[0482] 4. CRI-RI-i1-CQI;

[0483] 5. CRI-RI-CQI;

[0484] 6. CRI-RI-LI-PMI-CQI;

[0485] 7. CRI-RSRP;

[0486] 8. SSB-index-RSRP;

[0487] 9. CRI-2RI-2PMI-CQI;

[0488] 10. CRI-2RI-CQI;

[0489] 11. CRI-2RI-2LI-2PMI-CQI;

[0490] 12. 2CRI-2RSRP;

[0491] 13. 2SSB-index-2RSRP;

[0492] 14. 2CRI-2RI-2PMI-2CQI;

[0493] 15. 2CRI-2RI-2CQI;

[0494] 16. 2CRI-2RI-2LI-2PMI-2CQI.

[0495] Items 1-8 represent the reported quantities in the existing protocol, corresponding to CSI reporting based on the single TRP measurement assumption. Items 9-11 correspond to CSI based on the NC-JT measurement assumption; for specific meanings, refer to Implementation Example 4. Items 12-13 are CSI reporting for beam management of multiple TRPs. The terminal device reports the optimal beams (two in total) corresponding to each of the two TRPs through the CSI-RS resource index or SSB index. Items 14-16 are used to report two sets of CSIs, i.e., the CSIs corresponding to each of the two TRPs, which are obtained based on different CMR sets.

[0496] The first set of reported quantities may not include CRI-2RI-CQI.

[0497] For any one of 9-11, the reported quantity may not include CRI.

[0498] For example, the first reported quantity information (reportQuantity0) can be the following high-level signaling:

[0499]

[0500] or,

[0501]

[0502] or,

[0503]

[0504]

[0505] (2) Optionally, the second reporting quantity information (reportQuantity1) indicates the reporting quantity in the second reporting quantity set, which includes:

[0506] 1. No content;

[0507] 2. CRI-RI-PMI-CQI;

[0508] 3. CRI-RI-CQI;

[0509] 4. CRI-RI-LI-PMI-CQI.

[0510] The definitions of different reporting volumes are as described in Example 5 and will not be repeated here.

[0511] The second set of reported quantities may not include CRI-RI-CQI.

[0512] For example, the second reported quantity information (reportQuantity1) could be the following high-level signaling:

[0513]

[0514] or,

[0515]

[0516] (3) Optionally, the third reporting quantity information (reportQuantity2) indicates the reporting quantity in the third reporting quantity set, the third reporting quantity set including:

[0517] 1. No content;

[0518] 2. CRI-RI-PMI-CQI;

[0519] 3. CRI-RI-CQI;

[0520] 4. CRI-RI-LI-PMI-CQI.

[0521] The definitions of different reporting volumes are as described in Example 5 and will not be repeated here.

[0522] The third set of reported quantities may not include CRI-RI-CQI.

[0523] For example, the third reported quantity information (reportQuantity2) can be the following high-level signaling:

[0524]

[0525] or,

[0526]

[0527] In one implementation, when none of the plurality of reported quantity information is "no content", the reported quantity indicated by the second reported quantity information and the third reported quantity information is the same.

[0528] Based on these three reporting information sets, terminal devices can report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. This allows network devices to dynamically switch between single-TRP transmission and multi-TRP joint transmission based on the reported CSIs, resulting in higher downlink throughput. Specifically, the first reporting information can be used to report CSIs based on the traditional single-TRP measurement assumption, or CSIs based on the multi-TRP NC-JT measurement assumption, or CSIs for each of the two TRPs separately. The second reporting information can be used to report the CSI of the best of the two TRPs, or the CSI of one of the two TRPs. The third reporting information can be used to report the CSI of the other of the two TRPs.

[0529] 902. The terminal device measures the corresponding CSI based on the three reported quantities.

[0530] For specific implementation methods, please refer to Figure 7 The description of step 702 in the illustrated embodiment will not be repeated here.

[0531] 903. The terminal device shall report at least one of the three reported quantity information corresponding to the CSI in the same CSI report.

[0532] i: Optionally, the terminal device receives pre-configured reporting type information from the network device, which may be included in the CSI reporting configuration (CSI-ReportConfig). The terminal device determines whether to use reporting type 1 or reporting type 2 for CSI reporting based on this information, and performs CSI reporting according to the determined type. Reporting type 1 involves reporting the CSIs corresponding to the first and second reporting quantities, respectively. Reporting type 2 involves selecting the optimal CSI from the CSIs corresponding to the first and second reporting quantities for reporting. This reporting type information only takes effect when the third reporting quantity is configured as "no content".

[0533] ii: Optionally, in one implementation, when the terminal device reports the CSI corresponding to the first reporting quantity information and the second reporting quantity information respectively, the CSI corresponding to the two reporting quantity information can be cascaded according to the configuration order of the two reporting quantity information and fed back in the same CSI reporting.

[0534] iii: Optionally, in one implementation, when the terminal device selects the optimal CSI corresponding to the first and second reported quantity information from the CSIs for reporting, the terminal device simultaneously reports indication information of the selected reported quantity information, or indication information of the CSI corresponding to the selected reported quantity information. For example, the terminal device can use 1 bit of information in the CSI to indicate whether the currently reported CSI corresponds to reportQuantity0 or reportQuantity1. If the CSI includes CSI part 1 and CSI part 2, the indication information can be included in CSI part 1.

[0535] In this embodiment, multiple reporting information in the CSI reporting configuration allows the terminal device to report one or more single-TRP CSIs and multi-TRP joint transmission CSIs in the same CSI report. The specific CSIs reported based on transmission assumptions can be flexibly configured. This allows the network device to dynamically switch between single-TRP and multi-TRP joint transmissions based on the reported CSIs, resulting in higher downlink throughput. Furthermore, configuring some reporting information to have no content ensures good backward compatibility, allowing a fallback to existing CSI reporting methods.

[0536] like Figure 10 The diagram shown is a schematic representation of an embodiment of a terminal device in this application, which may include:

[0537] The transceiver module 1001 is used to receive CSI reporting configuration sent by the network device, wherein the CSI reporting configuration contains multiple reporting quantity information;

[0538] Processing module 1002 is used to measure the corresponding CSI according to the multiple reported quantity information;

[0539] The transceiver module 1001 is used to feed back the CSI corresponding to at least one of the multiple reporting quantity information in the CSI reporting configuration corresponding to the CSI reporting.

[0540] Optionally, the plurality of reported quantity information includes first reported quantity information and second reported quantity information, or the plurality of reported quantity information includes first reported quantity information, second reported quantity information and third reported quantity information.

[0541] Optionally, the first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities:

[0542] No content;

[0543] CRI-RI-PMI-CQI;

[0544] CRI-RI-i1;

[0545] CRI-RI-i1-CQI;

[0546] CRI-RI-CQI;

[0547] CRI-RSRP;

[0548] SSB-index-RSRP;

[0549] CRI-RI-LI-PMI-CQI;

[0550] 2CRI-2RI-2PMI-CQI;

[0551] CRI-2RI-2PMI-CQI;

[0552] 2RI-2PMI-CQI;

[0553] 2CRI-2RI-CQI;

[0554] CRI-2RI-CQI;

[0555] 2RI-CQI;

[0556] 2CRI-2RI-2LI-2PMI-CQI;

[0557] CRI-2RI-2LI-2PMI-CQI;

[0558] 2RI-2LI-2PMI-CQI;

[0559] 2CRI-2RSRP;

[0560] 2SSB-index-2RSRP;

[0561] 2CRI-2RI-2PMI-2CQI;

[0562] 2CRI-2RI-2CQI;

[0563] 2CRI-2RI-2LI-2PMI-2CQI;

[0564] CRI-nRI-nPMI-CQI;

[0565] CRI-nRI-CQI;

[0566] CRI-nRI-nLI-nPMI-CQI;

[0567] nCRI-nRI-nPMI-CQI;

[0568] nCRI-nRI-CQI;

[0569] nCRI-nRI-nLI-nPMI-CQI;

[0570] The value of n is determined by the terminal device;

[0571] The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is a CSI measurement hypothesis based on a single channel measurement resource (CMR) and a CSI measurement hypothesis based on multiple CMRs, and the measurement hypothesis recommended by the terminal device.

[0572] Optionally, the second reporting quantity information indicates the reporting quantity in a second reporting quantity set, the second reporting quantity set including at least one of the following reporting quantities:

[0573] No content;

[0574] 2CRI-2RI-2PMI-CQI;

[0575] CRI-2RI-2PMI-CQI;

[0576] 2RI-2PMI-CQI;

[0577] 2CRI-2RI-CQI;

[0578] CRI-2RI-CQI;

[0579] 2RI-CQI;

[0580] 2CRI-2RI-2LI-2PMI-CQI;

[0581] CRI-2RI-2LI-2PMI-CQI;

[0582] 2RI-2LI-2PMI-CQI;

[0583] CRI-RI-PMI-CQI;

[0584] CRI-RI-CQI;

[0585] CRI-RI-LI-PMI-CQI;

[0586] 2CRI-2RI-2PMI-2CQI;

[0587] 2RI-2PMI-2CQI;

[0588] 2CRI-2RI-2CQI;

[0589] 2RI-2CQI;

[0590] 2CRI-2RI-2LI-2PMI-2CQI;

[0591] 2RI-2LI-2PMI-2CQI;

[0592] The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

[0593] Optionally, the third reporting quantity information indicates the reporting quantity in a third reporting quantity set, the third reporting quantity set including at least one of the following reporting quantities:

[0594] No content;

[0595] CRI-2RI-2PMI-CQI;

[0596] 2RI-2PMI-CQI;

[0597] CRI-2RI-CQI;

[0598] 2RI-CQI;

[0599] CRI-2RI-2LI-2PMI-CQI;

[0600] 2RI-2LI-2PMI-CQI;

[0601] CRI-RI-PMI-CQI;

[0602] CRI-RI-CQI;

[0603] CRI-RI-LI-PMI-CQI.

[0604] Optionally, the second set of reports contains the same number of reports as the third set of reports.

[0605] Optionally, when none of the multiple reported data points indicate no content, at least two of the multiple reported data points indicate the same reported data point.

[0606] Optionally, when any one of the reported quantity information indicates that the reported quantity includes two sets of {Rank Indicator RI, Precoding Matrix Indicator PMI} or two sets of {CRI, RI, PMI, Channel Quality Indicator CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

[0607] Optionally, the processing module 1002 is specifically used to obtain the CSI corresponding to at least two of the multiple reported quantity information based on the same CMR measurement.

[0608] Optionally, the processing module 1002 is specifically used to measure the CSI corresponding to the reported quantity information that does not indicate no content among the multiple reported quantity information.

[0609] Optionally, the transceiver module 1001 is specifically used to cascade the CSIs corresponding to the multiple reported quantity information according to the configuration order of the multiple reported quantity information, and then feed them back in the CSI report corresponding to the CSI reporting configuration.

[0610] Optionally, the transceiver module 1001 is specifically used to discard the CSI corresponding to the CSI reporting configuration according to the configuration order of the multiple reported quantity information; and to feed back the discarded CSI.

[0611] Optionally, the transceiver module 1001 is specifically used to receive the reporting type information pre-configured by the network device; determine whether to use a first reporting type or a second reporting type according to the reporting type information, and report CSI according to the determined reporting type, wherein the first reporting type is to report the CSI corresponding to the plurality of reporting quantity information, and the second reporting type is to select one CSI corresponding to the reporting quantity information from the CSI corresponding to the plurality of reporting quantity information for reporting.

[0612] Optionally, the transceiver module 1001 is specifically used to report, when the terminal device determines that the second reporting type is adopted, an indication of the selected reporting quantity information, or an indication of the CSI identifier corresponding to the selected reporting quantity information.

[0613] Optionally, the transceiver module 1001 is specifically used to select a reporting type from the first reporting type and the second reporting type, and include the indication information of the selected reporting type in the CSI report;

[0614] The first reporting type is to report the CSIs corresponding to the plurality of reported quantity information, and the second reporting type is to select one CSI corresponding to the reported quantity information from the plurality of reported quantity information and report it.

[0615] Optionally, the transceiver module 1001 is specifically used to feed back the CSI corresponding to the CSI that does not indicate no content among the multiple reported quantity information in the CSI reporting.

[0616] like Figure 11 The diagram shown is a schematic representation of an embodiment of a network device in this application, which may include:

[0617] The transceiver module 1101 is used to send a CSI reporting configuration to a terminal device, wherein the CSI reporting configuration includes multiple reporting quantity information, and the multiple reporting quantity information is used by the terminal device to measure the corresponding CSI respectively; and to receive the CSI corresponding to at least one of the multiple reporting quantity information from the terminal device in the CSI report corresponding to the CSI reporting configuration.

[0618] Optionally, the plurality of reported quantity information includes first reported quantity information and second reported quantity information, or the plurality of reported quantity information includes first reported quantity information, second reported quantity information and third reported quantity information.

[0619] Optionally, the first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities:

[0620] No content;

[0621] CRI-RI-PMI-CQI;

[0622] CRI-RI-i1;

[0623] CRI-RI-i1-CQI;

[0624] CRI-RI-CQI;

[0625] CRI-RSRP;

[0626] SSB-index-RSRP;

[0627] CRI-RI-LI-PMI-CQI;

[0628] 2CRI-2RI-2PMI-CQI;

[0629] CRI-2RI-2PMI-CQI;

[0630] 2RI-2PMI-CQI;

[0631] 2CRI-2RI-CQI;

[0632] CRI-2RI-CQI;

[0633] 2RI-CQI;

[0634] 2CRI-2RI-2LI-2PMI-CQI;

[0635] CRI-2RI-2LI-2PMI-CQI;

[0636] 2RI-2LI-2PMI-CQI;

[0637] 2CRI-2RSRP;

[0638] 2SSB-index-2RSRP;

[0639] 2CRI-2RI-2PMI-2CQI;

[0640] 2CRI-2RI-2CQI;

[0641] 2CRI-2RI-2LI-2PMI-2CQI;

[0642] CRI-nRI-nPMI-CQI;

[0643] CRI-nRI-CQI;

[0644] CRI-nRI-nLI-nPMI-CQI;

[0645] nCRI-nRI-nPMI-CQI;

[0646] nCRI-nRI-CQI;

[0647] nCRI-nRI-nLI-nPMI-CQI;

[0648] The value of n is determined by the terminal device;

[0649] The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single channel measurement resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

[0650] Optionally, the second reporting quantity information indicates the reporting quantity in a second reporting quantity set, the second reporting quantity set including at least one of the following reporting quantities:

[0651] No content;

[0652] 2CRI-2RI-2PMI-CQI;

[0653] CRI-2RI-2PMI-CQI;

[0654] 2RI-2PMI-CQI;

[0655] 2CRI-2RI-CQI;

[0656] CRI-2RI-CQI;

[0657] 2RI-CQI;

[0658] 2CRI-2RI-2LI-2PMI-CQI;

[0659] CRI-2RI-2LI-2PMI-CQI;

[0660] 2RI-2LI-2PMI-CQI;

[0661] CRI-RI-PMI-CQI;

[0662] CRI-RI-CQI;

[0663] CRI-RI-LI-PMI-CQI;

[0664] 2CRI-2RI-2PMI-2CQI;

[0665] 2RI-2PMI-2CQI;

[0666] 2CRI-2RI-2CQI;

[0667] 2RI-2CQI;

[0668] 2CRI-2RI-2LI-2PMI-2CQI;

[0669] 2RI-2LI-2PMI-2CQI;

[0670] The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

[0671] Optionally, the third reporting quantity information indicates the reporting quantity in a third reporting quantity set, the third reporting quantity set including at least one of the following reporting quantities:

[0672] No content;

[0673] CRI-2RI-2PMI-CQI;

[0674] 2RI-2PMI-CQI;

[0675] CRI-2RI-CQI;

[0676] 2RI-CQI;

[0677] CRI-2RI-2LI-2PMI-CQI;

[0678] 2RI-2LI-2PMI-CQI;

[0679] CRI-RI-PMI-CQI;

[0680] CRI-RI-CQI;

[0681] CRI-RI-LI-PMI-CQI.

[0682] Optionally, the second set of reports contains the same number of reports as the third set of reports.

[0683] Optionally, when none of the multiple reported data points indicate no content, at least two of the multiple reported data points indicate the same reported data point.

[0684] Optionally, when any one of the reported quantities indicates that the reported quantity includes two sets of {RI, PMI} or two sets of {CRI, RI, PMI, CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

[0685] Optionally, at least two of the reported quantity information are obtained based on the same CMR measurement.

[0686] Corresponding to the method of at least one embodiment applied to a terminal device described above, embodiments of this application also provide one or more terminal devices. The terminal devices of these embodiments can implement any of the above methods. For example... Figure 12 The diagram shown illustrates another embodiment of the terminal device according to the present invention. Taking a mobile phone as an example, the terminal device may include: a radio frequency (RF) circuit 1210, a memory 1220, an input unit 1230, a display unit 1240, a sensor 1250, an audio circuit 1260, a wireless fidelity (WiFi) module 1270, a processor 1280, and a power supply 1290, among other components. The RF circuit 1210 includes a receiver 1214 and a transmitter 1212. Those skilled in the art will understand that... Figure 12 The mobile phone structure shown does not constitute a limitation on the mobile phone and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0687] The following is combined Figure 12 A detailed introduction to each component of a mobile phone:

[0688] RF circuit 1210 can be used for receiving and transmitting signals during information transmission or calls. Specifically, it receives downlink information from the base station and processes it with processor 1280; additionally, it transmits uplink data to the base station. Typically, RF circuit 1210 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier (LNA), a duplexer, etc. Furthermore, RF circuit 1210 can also communicate wirelessly with networks and other devices. The aforementioned wireless communication can use any communication standard or protocol, including but not limited to Global System for Mobile Communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), etc.

[0689] The memory 1220 can be used to store software programs and modules. The processor 1280 executes various functions and data processing of the mobile phone by running the software programs and modules stored in the memory 1220. The memory 1220 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, applications required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the mobile phone (such as audio data, phonebook, etc.). In addition, the memory 1220 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0690] The input unit 1230 can be used to receive input numerical or character information, and to generate key signal inputs related to user settings and function control of the mobile phone. Specifically, the input unit 1230 may include a touch panel 1231 and other input devices 1232. The touch panel 1231, also known as a touch screen, can collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near the touch panel 1231), and drive the corresponding connection devices according to a pre-set program. Optionally, the touch panel 1231 may include two parts: a touch detection device and a touch controller. The touch detection device detects the user's touch position and the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends it to the processor 1280, and can also receive and execute commands sent by the processor 1280. In addition, the touch panel 1231 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1231, the input unit 1230 may also include other input devices 1232. Specifically, other input devices 1232 may include, but are not limited to, one or more of the following: physical keyboard, function keys (such as volume control buttons, power buttons, etc.), trackball, mouse, joystick, etc.

[0691] The display unit 1240 can be used to display information input by the user or information provided to the user, as well as various menus of the mobile phone. The display unit 1240 may include a display panel 1241, which may optionally be configured as a liquid crystal display (LCD), organic light-emitting diode (OLED), or similar form. Furthermore, a touch panel 1231 may cover the display panel 1241. When the touch panel 1231 detects a touch operation on or near it, it transmits the information to the processor 1280 to determine the type of touch event. Subsequently, the processor 1280 provides corresponding visual output on the display panel 1241 according to the type of touch event. Although in Figure 12 In this embodiment, the touch panel 1231 and the display panel 1241 are two separate components to realize the input and output functions of the mobile phone. However, in some embodiments, the touch panel 1231 and the display panel 1241 can be integrated to realize the input and output functions of the mobile phone.

[0692] The mobile phone may also include at least one sensor 1250, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 1241 according to the ambient light level, and the proximity sensor can turn off the display panel 1241 and / or the backlight when the phone is moved to the ear. As a type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes). When stationary, it can detect the magnitude and direction of gravity and can be used for applications that recognize the phone's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition-related functions (such as pedometer, taps), etc. Other sensors that may be configured in the mobile phone, such as gyroscopes, barometers, hygrometers, thermometers, and infrared sensors, will not be described in detail here.

[0693] Audio circuit 1260, speaker 1261, and microphone 1262 provide an audio interface between the user and the mobile phone. Audio circuit 1260 converts received audio data into electrical signals and transmits them to speaker 1261, where speaker 1261 converts them into sound signals for output. On the other hand, microphone 1262 converts collected sound signals into electrical signals, which are received by audio circuit 1260, converted into audio data, and then processed by processor 1280 before being transmitted via RF circuit 1210 to, for example, another mobile phone, or the audio data can be output to memory 1220 for further processing.

[0694] WiFi is a short-range wireless transmission technology. Through the WiFi module 1270, mobile phones can help users send and receive emails, browse web pages, and access streaming media, providing users with wireless broadband internet access. Although Figure 12 The WiFi module 1270 is shown, but it is understood that it is not an essential component of a mobile phone and can be omitted as needed without changing the essence of the invention.

[0695] The processor 1280 is the control center of the mobile phone, connecting various parts of the phone through various interfaces and lines. It executes software programs and / or modules stored in the memory 1220, and calls data stored in the memory 1220 to perform various functions and process data, thereby providing overall monitoring of the phone. Optionally, the processor 1280 may include one or more processing units; preferably, the processor 1280 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications, and the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 1280.

[0696] The mobile phone also includes a power supply 1290 (such as a battery) that supplies power to various components. Preferably, the power supply can be logically connected to the processor 1280 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. Although not shown, the mobile phone may also include a camera, Bluetooth module, etc., which will not be described in detail here.

[0697] In this embodiment of the invention, the RF circuit 1210 is used to receive CSI reporting configuration sent by a network device, wherein the CSI reporting configuration includes multiple reporting quantity information.

[0698] Processor 1280 is used to measure the corresponding CSI according to the multiple reported quantity information;

[0699] RF circuit 1210 is used to feed back the CSI corresponding to at least one of the multiple reported quantity information in the CSI reporting configuration corresponding to the CSI reporting.

[0700] Optionally, the plurality of reported quantity information includes first reported quantity information and second reported quantity information, or the plurality of reported quantity information includes first reported quantity information, second reported quantity information and third reported quantity information.

[0701] Optionally, the first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities:

[0702] No content;

[0703] CRI-RI-PMI-CQI;

[0704] CRI-RI-i1;

[0705] CRI-RI-i1-CQI;

[0706] CRI-RI-CQI;

[0707] CRI-RSRP;

[0708] SSB-index-RSRP;

[0709] CRI-RI-LI-PMI-CQI;

[0710] 2CRI-2RI-2PMI-CQI;

[0711] CRI-2RI-2PMI-CQI;

[0712] 2RI-2PMI-CQI;

[0713] 2CRI-2RI-CQI;

[0714] CRI-2RI-CQI;

[0715] 2RI-CQI;

[0716] 2CRI-2RI-2LI-2PMI-CQI;

[0717] CRI-2RI-2LI-2PMI-CQI;

[0718] 2RI-2LI-2PMI-CQI;

[0719] 2CRI-2RSRP;

[0720] 2SSB-index-2RSRP;

[0721] 2CRI-2RI-2PMI-2CQI;

[0722] 2CRI-2RI-2CQI;

[0723] 2CRI-2RI-2LI-2PMI-2CQI;

[0724] CRI-nRI-nPMI-CQI;

[0725] CRI-nRI-CQI;

[0726] CRI-nRI-nLI-nPMI-CQI;

[0727] nCRI-nRI-nPMI-CQI;

[0728] nCRI-nRI-CQI;

[0729] nCRI-nRI-nLI-nPMI-CQI;

[0730] The value of n is determined by the terminal device;

[0731] The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single channel measurement resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

[0732] Optionally, the second reporting quantity information indicates the reporting quantity in a second reporting quantity set, the second reporting quantity set including at least one of the following reporting quantities:

[0733] No content;

[0734] 2CRI-2RI-2PMI-CQI;

[0735] CRI-2RI-2PMI-CQI;

[0736] 2RI-2PMI-CQI;

[0737] 2CRI-2RI-CQI;

[0738] CRI-2RI-CQI;

[0739] 2RI-CQI;

[0740] 2CRI-2RI-2LI-2PMI-CQI;

[0741] CRI-2RI-2LI-2PMI-CQI;

[0742] 2RI-2LI-2PMI-CQI;

[0743] CRI-RI-PMI-CQI;

[0744] CRI-RI-CQI;

[0745] CRI-RI-LI-PMI-CQI;

[0746] 2CRI-2RI-2PMI-2CQI;

[0747] 2RI-2PMI-2CQI;

[0748] 2CRI-2RI-2CQI;

[0749] 2RI-2CQI;

[0750] 2CRI-2RI-2LI-2PMI-2CQI;

[0751] 2RI-2LI-2PMI-2CQI;

[0752] The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

[0753] Optionally, the third reporting quantity information indicates the reporting quantity in a third reporting quantity set, the third reporting quantity set including at least one of the following reporting quantities:

[0754] No content;

[0755] CRI-2RI-2PMI-CQI;

[0756] 2RI-2PMI-CQI;

[0757] CRI-2RI-CQI;

[0758] 2RI-CQI;

[0759] CRI-2RI-2LI-2PMI-CQI;

[0760] 2RI-2LI-2PMI-CQI;

[0761] CRI-RI-PMI-CQI;

[0762] CRI-RI-CQI;

[0763] CRI-RI-LI-PMI-CQI.

[0764] Optionally, the second set of reports contains the same number of reports as the third set of reports.

[0765] Optionally, when none of the multiple reported data points indicate no content, at least two of the multiple reported data points indicate the same reported data point.

[0766] Optionally, when any one of the reported quantity information indicates that the reported quantity includes two sets of {Rank Indicator RI, Precoding Matrix Indicator PMI} or two sets of {CRI, RI, PMI, Channel Quality Indicator CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

[0767] Optionally, the processor 1280 is specifically configured to obtain the CSI corresponding to at least two of the plurality of reported quantity information based on the same CMR measurement.

[0768] Optionally, the processor 1280 is specifically used to measure the CSI corresponding to the reported quantity information that does not indicate no content among the plurality of reported quantity information.

[0769] Optionally, the RF circuit 1210 is specifically used by the terminal device to cascade the CSIs corresponding to the multiple reported quantity information according to the configuration order of the multiple reported quantity information, and then feed them back in the CSI report corresponding to the CSI reporting configuration.

[0770] Optionally, the RF circuit 1210 is specifically used for the terminal device to discard the CSI corresponding to the CSI reported by the CSI according to the configuration order of the multiple reported quantity information; and to feed back the discarded CSI.

[0771] Optionally, the RF circuit 1210 is specifically used to receive the reporting type information pre-configured by the network device; determine whether to use a first reporting type or a second reporting type according to the reporting type information, and report CSI according to the determined reporting type, wherein the first reporting type is to report the CSI corresponding to the plurality of reporting quantity information, and the second reporting type is to select one CSI corresponding to the reporting quantity information from the CSI corresponding to the plurality of reporting quantity information for reporting.

[0772] Optionally, the RF circuit 1210 is specifically used to, when the terminal device determines to adopt the second reporting type, report indication information of the selected reporting quantity information, or indication information of the CSI identifier corresponding to the selected reporting quantity information.

[0773] Optionally, the RF circuit 1210 is specifically configured to select a reporting type from a first reporting type and a second reporting type, and include indication information of the selected reporting type in the CSI report;

[0774] The first reporting type is to report the CSIs corresponding to the plurality of reported quantity information, and the second reporting type is to select one CSI corresponding to the reported quantity information from the plurality of reported quantity information and report it.

[0775] Optionally, the RF circuit 1210 is specifically used to feed back the CSI corresponding to the reported quantity information that does not indicate no content among the multiple reported quantity information in the CSI reporting.

[0776] Corresponding to the method of at least one of the embodiments applied to a network device described above, embodiments of this application also provide one or more network devices. For example... Figure 13 The diagram shown is a schematic representation of another embodiment of the network device according to the present invention, which may include:

[0777] A memory 1301 storing executable program code; a transceiver 1302 coupled to the memory 1301;

[0778] Transceiver 1302 is used to send a CSI reporting configuration to a terminal device, wherein the CSI reporting configuration includes multiple reporting quantity information, and the multiple reporting quantity information is used by the terminal device to measure the corresponding CSI respectively; and to receive the CSI corresponding to at least one of the multiple reporting quantity information from the terminal device in the CSI report corresponding to the CSI reporting configuration.

[0779] Optionally, the plurality of reported quantity information includes first reported quantity information and second reported quantity information, or the plurality of reported quantity information includes first reported quantity information, second reported quantity information and third reported quantity information.

[0780] Optionally, the first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities:

[0781] No content;

[0782] CRI-RI-PMI-CQI;

[0783] CRI-RI-i1;

[0784] CRI-RI-i1-CQI;

[0785] CRI-RI-CQI;

[0786] CRI-RSRP;

[0787] SSB-index-RSRP;

[0788] CRI-RI-LI-PMI-CQI;

[0789] 2CRI-2RI-2PMI-CQI;

[0790] CRI-2RI-2PMI-CQI;

[0791] 2RI-2PMI-CQI;

[0792] 2CRI-2RI-CQI;

[0793] CRI-2RI-CQI;

[0794] 2RI-CQI;

[0795] 2CRI-2RI-2LI-2PMI-CQI;

[0796] CRI-2RI-2LI-2PMI-CQI;

[0797] 2RI-2LI-2PMI-CQI;

[0798] 2CRI-2RSRP;

[0799] 2SSB-index-2RSRP;

[0800] 2CRI-2RI-2PMI-2CQI;

[0801] 2CRI-2RI-2CQI;

[0802] 2CRI-2RI-2LI-2PMI-2CQI;

[0803] CRI-nRI-nPMI-CQI;

[0804] CRI-nRI-CQI;

[0805] CRI-nRI-nLI-nPMI-CQI;

[0806] nCRI-nRI-nPMI-CQI;

[0807] nCRI-nRI-CQI;

[0808] nCRI-nRI-nLI-nPMI-CQI;

[0809] The value of n is determined by the terminal device;

[0810] The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single channel measurement resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

[0811] Optionally, the second reporting quantity information indicates the reporting quantity in a second reporting quantity set, the second reporting quantity set including at least one of the following reporting quantities:

[0812] No content;

[0813] 2CRI-2RI-2PMI-CQI;

[0814] CRI-2RI-2PMI-CQI;

[0815] 2RI-2PMI-CQI;

[0816] 2CRI-2RI-CQI;

[0817] CRI-2RI-CQI;

[0818] 2RI-CQI;

[0819] 2CRI-2RI-2LI-2PMI-CQI;

[0820] CRI-2RI-2LI-2PMI-CQI;

[0821] 2RI-2LI-2PMI-CQI;

[0822] CRI-RI-PMI-CQI;

[0823] CRI-RI-CQI;

[0824] CRI-RI-LI-PMI-CQI;

[0825] 2CRI-2RI-2PMI-2CQI;

[0826] 2RI-2PMI-2CQI;

[0827] 2CRI-2RI-2CQI;

[0828] 2RI-2CQI;

[0829] 2CRI-2RI-2LI-2PMI-2CQI;

[0830] 2RI-2LI-2PMI-2CQI;

[0831] The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

[0832] Optionally, the third reporting quantity information indicates the reporting quantity in a third reporting quantity set, the third reporting quantity set including at least one of the following reporting quantities:

[0833] No content;

[0834] CRI-2RI-2PMI-CQI;

[0835] 2RI-2PMI-CQI;

[0836] CRI-2RI-CQI;

[0837] 2RI-CQI;

[0838] CRI-2RI-2LI-2PMI-CQI;

[0839] 2RI-2LI-2PMI-CQI;

[0840] CRI-RI-PMI-CQI;

[0841] CRI-RI-CQI;

[0842] CRI-RI-LI-PMI-CQI.

[0843] Optionally, the second set of reports contains the same number of reports as the third set of reports.

[0844] Optionally, when none of the multiple reported data points indicate no content, at least two of the multiple reported data points indicate the same reported data point.

[0845] Optionally, when any one of the reported quantities indicates that the reported quantity includes two sets of {RI, PMI} or two sets of {CRI, RI, PMI, CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

[0846] Optionally, at least two of the reported quantity information are obtained based on the same CMR measurement.

[0847] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions.

[0848] When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., a solid-state disk (SSD)).

[0849] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

Claims

1. A CSI reporting method, characterized in that, include: The terminal device receives a Channel State Information (CSI) reporting configuration sent by the network device. The CSI reporting configuration includes multiple reporting quantity information items. These multiple reporting quantity information items include a first reporting quantity information item and a second reporting quantity information item. The first reporting quantity information item is used to report CSI based on the traditional single-TRP measurement assumption, or to report CSI based on the multi-TRP NC-JT measurement assumption, or to report the CSI corresponding to the best measurement assumption among the single-TRP and NC-JT measurement assumptions. The second reporting quantity information item is used to report CSI based on the best single-TRP measurement assumption, or to simultaneously report the CSI corresponding to each of the two TRPs. The terminal device measures the corresponding CSI based on the multiple reported data. In the CSI reporting corresponding to the CSI reporting configuration, the terminal device feeds back at least one of the multiple reporting quantity information corresponding to the CSI; Wherein, when any one of the multiple reported information indicates that the reported quantity contains two sets of {Rank Indicator RI, Precoding Matrix Indicator PMI} or two sets of {CRI, RI, PMI, Channel Quality Indicator CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

2. The method according to claim 1, characterized in that, The multiple reported data also include a third reported data.

3. The method according to claim 1, characterized in that, The first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities: No content; CRI-RI-PMI-CQI; CRI-RI-i1; CRI-RI-i1-CQI; CRI-RI-CQI; CRI-RSRP; SSB-index-RSRP; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; 2CRI-2RSRP; 2SSB-index-2RSRP; 2CRI-2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; CRI-nRI-nPMI-CQI; CRI-nRI-CQI; CRI-nRI-nLI-nPMI-CQI; nCRI-nRI-nPMI-CQI; nCRI-nRI-CQI; nCRI-nRI-nLI-nPMI-CQI; The value of n is determined by the terminal device; The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single channel measurement resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

4. The method according to claim 1, characterized in that, The second reporting quantity information indicates the reporting quantity in a second reporting quantity set, which includes at least one of the following reporting quantities: No content; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-2CQI; 2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; 2RI-2LI-2PMI-2CQI; The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

5. The method according to claim 2, characterized in that, The third reporting quantity information indicates the reporting quantity in the third reporting quantity set, which includes at least one of the following reporting quantities: No content; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; CRI-2RI-CQI; 2RI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI.

6. The method according to claim 4 or 5, characterized in that, The second set of reported data contains the same number of reported data as the third set of reported data.

7. The method according to any one of claims 1-6, characterized in that, When none of the multiple reported data points indicate no content, at least two of the multiple reported data points indicate the same reported data point.

8. The method according to any one of claims 1-7, characterized in that, The terminal device measures the corresponding CSI based on the multiple reported data, including: The terminal device obtains the CSI corresponding to at least two of the multiple reported quantity information based on the same CMR measurement.

9. The method according to any one of claims 1-7, characterized in that, The terminal device measures the corresponding CSI based on the multiple reported data, including: The terminal device measures the CSI corresponding to the reported quantity information that does not indicate no content among the multiple reported quantity information.

10. The method according to any one of claims 1-9, characterized in that, In the CSI reporting corresponding to the CSI reporting configuration, the terminal device feeds back the CSI corresponding to at least one of the multiple reporting quantity information, including: The terminal device concatenates the CSIs corresponding to the multiple reported data points according to the configuration order of the multiple reported data points, and then feeds them back in the CSI report corresponding to the CSI reporting configuration.

11. The method according to any one of claims 1-9, characterized in that, In the CSI reporting corresponding to the CSI reporting configuration, the terminal device feeds back the CSI corresponding to at least one of the multiple reporting quantity information, including: The terminal device will report the CSI corresponding to the configuration and discard it in the order of the configuration of the multiple reported information. The terminal device feeds back the discarded CSI.

12. The method according to any one of claims 1-9, characterized in that, In the CSI reporting corresponding to the CSI reporting configuration, the terminal device feeds back the CSI corresponding to at least one of the multiple reporting quantity information, including: The terminal device receives the reporting type information pre-configured by the network device; The terminal device determines whether to use a first reporting type or a second reporting type based on the reporting type information, and reports CSI according to the determined reporting type. The first reporting type is to report the CSI corresponding to the plurality of reporting quantity information, and the second reporting type is to select one CSI corresponding to the reporting quantity information from the plurality of reporting quantity information for reporting.

13. The method according to claim 12, characterized in that, In the CSI reporting corresponding to the CSI reporting configuration, the terminal device feeds back the CSI corresponding to at least one of the multiple reporting quantity information, including: When the terminal device determines to use the second reporting type, the terminal device reports the indication information of the selected reporting quantity information, or the indication information of the CSI identifier corresponding to the selected reporting quantity information.

14. The method according to any one of claims 1-13, characterized in that, In the CSI reporting corresponding to the CSI reporting configuration, the terminal device feeds back the CSI corresponding to at least one of the multiple reporting quantity information, including: The terminal device selects a reporting type from the first reporting type and the second reporting type, and includes the indication information of the selected reporting type in the CSI report; The first reporting type is to report the CSIs corresponding to the plurality of reported quantity information, and the second reporting type is to select one CSI corresponding to the reported quantity information from the plurality of reported quantity information and report it.

15. The method according to any one of claims 1-13, characterized in that, The terminal device reports the CSI corresponding to at least one of the multiple reported quantity information in the same CSI report, including: The terminal device does not indicate the CSI corresponding to the reported quantity information that has no content in the CSI reporting feedback of the multiple reported quantity information.

16. A CSI reporting method, characterized in that, include: The network device sends a CSI reporting configuration to the terminal device. This CSI reporting configuration includes multiple reporting quantity information items, which are used by the terminal device to measure the corresponding CSI. Specifically, the multiple reporting quantity information items include first reporting quantity information and second reporting quantity information. The first reporting quantity information is used to report CSI based on the traditional single-TRP measurement assumption, or to report CSI based on the NC-JT measurement assumption of multiple TRPs, or to report the CSI corresponding to the best measurement assumption among the single-TRP and NC-JT measurement assumptions. The second reporting quantity information is used to report CSI based on the best single-TRP measurement assumption, or to simultaneously report the CSI corresponding to each of the two TRPs. The network device receives from the terminal device, in the CSI report corresponding to the CSI reporting configuration, at least one of the multiple reporting quantity information corresponding to the CSI; Wherein, when any one of the multiple reported quantity information indicates a reported quantity containing two sets of {RI, PMI} or two sets of {CRI, RI, PMI, CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

17. The method according to claim 16, characterized in that, The multiple reported data also include a third reported data.

18. The method according to claim 16, characterized in that, The first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities: No content; CRI-RI-PMI-CQI; CRI-RI-i1; CRI-RI-i1-CQI; CRI-RI-CQI; CRI-RSRP; SSB-index-RSRP; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; 2CRI-2RSRP; 2SSB-index-2RSRP; 2CRI-2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; CRI-nRI-nPMI-CQI; CRI-nRI-CQI; CRI-nRI-nLI-nPMI-CQI; nCRI-nRI-nPMI-CQI; nCRI-nRI-CQI; nCRI-nRI-nLI-nPMI-CQI; The value of n is determined by the terminal device; The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single channel measurement resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

19. The method according to claim 16, characterized in that, The second reporting quantity information indicates the reporting quantity in a second reporting quantity set, which includes at least one of the following reporting quantities: No content; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-2CQI; 2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; 2RI-2LI-2PMI-2CQI; The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

20. The method according to claim 17, characterized in that, The third reporting quantity information indicates the reporting quantity in the third reporting quantity set, which includes at least one of the following reporting quantities: No content; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; CRI-2RI-CQI; 2RI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI.

21. The method according to claim 19 or 20, characterized in that, The second set of reported data contains the same number of reported data as the third set of reported data.

22. The method according to any one of claims 16-21, characterized in that, When none of the multiple reported data points indicate no content, at least two of the multiple reported data points indicate the same reported data point.

23. The method according to any one of claims 16-21, characterized in that, At least two of the reported data points have CSI values ​​obtained based on the same CMR measurement.

24. A terminal device, characterized in that, include: The transceiver module is used to receive CSI reporting configuration sent by the network device. The CSI reporting configuration includes multiple reporting quantity information. These multiple reporting quantity information include first reporting quantity information and second reporting quantity information. The first reporting quantity information is used to report CSI based on the traditional single-TRP measurement assumption, or to report CSI based on the multi-TRP NC-JT measurement assumption, or to report the CSI corresponding to the best measurement assumption among the single-TRP and NC-JT measurement assumptions. The second reporting quantity information is used to report CSI based on the best single-TRP measurement assumption, or to simultaneously report the CSI corresponding to each of the two TRPs. The processing module is used to measure the corresponding CSI based on the multiple reported quantities. The transceiver module is used to feed back at least one of the multiple reported quantity information corresponding to the CSI in the CSI reporting configuration corresponding to the CSI reporting; Wherein, when any one of the multiple reported quantity information indicates a reported quantity containing two sets of {RI, PMI} or two sets of {CRI, RI, PMI, CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

25. The terminal device according to claim 24, characterized in that, The multiple reported data also include a third reported data.

26. The terminal device according to claim 24, characterized in that, The first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities: No content; CRI-RI-PMI-CQI; CRI-RI-i1; CRI-RI-i1-CQI; CRI-RI-CQI; CRI-RSRP; SSB-index-RSRP; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; 2CRI-2RSRP; 2SSB-index-2RSRP; 2CRI-2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; CRI-nRI-nPMI-CQI; CRI-nRI-CQI; CRI-nRI-nLI-nPMI-CQI; nCRI-nRI-nPMI-CQI; nCRI-nRI-CQI; nCRI-nRI-nLI-nPMI-CQI; The value of n is determined by the terminal device; The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single channel measurement resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

27. The terminal device according to claim 24, characterized in that, The second reporting quantity information indicates the reporting quantity in a second reporting quantity set, which includes at least one of the following reporting quantities: No content; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-2CQI; 2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; 2RI-2LI-2PMI-2CQI; The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

28. The terminal device according to claim 25, characterized in that, The third reporting quantity information indicates the reporting quantity in the third reporting quantity set, which includes at least one of the following reporting quantities: No content; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; CRI-2RI-CQI; 2RI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI.

29. The terminal device according to claim 27 or 28, characterized in that, The second set of reported data contains the same number of reported data as the third set of reported data.

30. The terminal device according to any one of claims 24-29, characterized in that, When none of the multiple reported data points indicate no content, at least two of the multiple reported data points indicate the same reported data point.

31. The terminal device according to any one of claims 24-30, characterized in that, The processing module is specifically used to obtain the CSI corresponding to at least two of the multiple reported quantity information based on the same CMR measurement.

32. The terminal device according to any one of claims 24-30, characterized in that, The processing module is specifically used to measure the CSI corresponding to the reported quantity information that does not indicate no content among the multiple reported quantity information.

33. The terminal device according to any one of claims 24-32, characterized in that, The transceiver module is specifically used to cascade the CSIs corresponding to the multiple reported quantity information according to the configuration order of the multiple reported quantity information, and then feed them back in the CSI report corresponding to the CSI reporting configuration.

34. The terminal device according to any one of claims 24-32, characterized in that, The transceiver module is specifically used to discard the CSIs corresponding to the CSI reporting configuration according to the configuration order of the multiple reported quantity information; and to return the discarded CSIs.

35. The terminal device according to any one of claims 24-32, characterized in that, The transceiver module is specifically used to receive the reporting type information pre-configured by the network device; determine whether to use a first reporting type or a second reporting type based on the reporting type information, and report CSI according to the determined reporting type, wherein the first reporting type is to report the CSI corresponding to the plurality of reporting quantity information, and the second reporting type is to select one CSI corresponding to the reporting quantity information from the plurality of reporting quantity information for reporting.

36. The terminal device according to claim 35, characterized in that, The transceiver module is specifically used to report, when the terminal device determines that the second reporting type is adopted, an indication of the selected reporting quantity information, or an indication of the CSI identifier corresponding to the selected reporting quantity information.

37. The terminal device according to any one of claims 24-36, characterized in that, The transceiver module is specifically used to select a reporting type from the first reporting type and the second reporting type, and to include the indication information of the selected reporting type in the CSI report; The first reporting type is to report the CSIs corresponding to the plurality of reported quantity information, and the second reporting type is to select one CSI corresponding to the reported quantity information from the plurality of reported quantity information and report it.

38. The terminal device according to any one of claims 24-36, characterized in that, The transceiver module is specifically used to feed back the CSI corresponding to the reported quantity information that does not indicate no content among the multiple reported quantity information in the CSI reporting.

39. A network device, characterized in that, include: The transceiver module is used to send CSI reporting configuration to the terminal device. The CSI reporting configuration includes multiple reporting quantity information, which are used by the terminal device to measure the corresponding CSI respectively. The terminal device receives the CSI corresponding to at least one of the multiple reporting quantity information in the CSI reporting configuration. The multiple reporting quantity information includes a first reporting quantity information and a second reporting quantity information. The first reporting quantity information is used to report CSI based on the traditional single TRP measurement assumption, or to report CSI based on the NC-JT measurement assumption of multiple TRPs, or to report the CSI corresponding to the best measurement assumption among the single TRP and NC-JT measurement assumptions. The second reporting quantity information is used to report CSI based on the best single TRP measurement assumption, or to simultaneously report the CSI corresponding to each of the two TRPs. Wherein, when any one of the multiple reported quantity information indicates a reported quantity containing two sets of {RI, PMI} or two sets of {CRI, RI, PMI, CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

40. The network device according to claim 39, characterized in that, The multiple reported data also include a third reported data.

41. The network device according to claim 39, characterized in that, The first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities: No content; CRI-RI-PMI-CQI; CRI-RI-i1; CRI-RI-i1-CQI; CRI-RI-CQI; CRI-RSRP; SSB-index-RSRP; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; 2CRI-2RSRP; 2SSB-index-2RSRP; 2CRI-2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; CRI-nRI-nPMI-CQI; CRI-nRI-CQI; CRI-nRI-nLI-nPMI-CQI; nCRI-nRI-nPMI-CQI; nCRI-nRI-CQI; nCRI-nRI-nLI-nPMI-CQI; The value of n is determined by the terminal device; The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single channel measurement resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

42. The network device according to claim 39, characterized in that, The second reporting quantity information indicates the reporting quantity in a second reporting quantity set, which includes at least one of the following reporting quantities: No content; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-2CQI; 2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; 2RI-2LI-2PMI-2CQI; The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

43. The network device according to claim 40, characterized in that, The third reporting quantity information indicates the reporting quantity in the third reporting quantity set, which includes at least one of the following reporting quantities: No content; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; CRI-2RI-CQI; 2RI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI.

44. The network device according to claim 42 or 43, characterized in that, The second set of reported data contains the same number of reported data as the third set of reported data.

45. The network device according to any one of claims 39-44, characterized in that, When none of the multiple reported data points indicate no content, at least two of the multiple reported data points indicate the same reported data point.

46. ​​The network device according to any one of claims 39-45, characterized in that, At least two of the reported data points have CSI values ​​obtained based on the same CMR measurement.

47. A terminal device, characterized in that, include: A transceiver is used to receive CSI reporting configuration sent by a network device. The CSI reporting configuration includes multiple reporting quantity information. These multiple reporting quantity information include first reporting quantity information and second reporting quantity information. The first reporting quantity information is used to report CSI based on the traditional single-TRP measurement assumption, or to report CSI based on the multi-TRP NC-JT measurement assumption, or to report the CSI corresponding to the best measurement assumption among the single-TRP and NC-JT measurement assumptions. The second reporting quantity information is used to report CSI based on the best single-TRP measurement assumption, or to simultaneously report the CSI corresponding to each of the two TRPs. The processor is used to measure the corresponding CSI based on the multiple reported quantity information; The transceiver is used to feed back the CSI corresponding to at least one of the multiple reported quantity information in the CSI reporting configuration corresponding to the CSI reporting; wherein, when any one of the multiple reported quantity information indicates a reported quantity containing two sets of {RI, PMI} or two sets of {CRI, RI, PMI, CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

48. The terminal device according to claim 47, characterized in that, The multiple reported data also include a third reported data.

49. The terminal device according to claim 47, characterized in that, The first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities: No content; CRI-RI-PMI-CQI; CRI-RI-i1; CRI-RI-i1-CQI; CRI-RI-CQI; CRI-RSRP; SSB-index-RSRP; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; 2CRI-2RSRP; 2SSB-index-2RSRP; 2CRI-2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; CRI-nRI-nPMI-CQI; CRI-nRI-CQI; CRI-nRI-nLI-nPMI-CQI; nCRI-nRI-nPMI-CQI; nCRI-nRI-CQI; nCRI-nRI-nLI-nPMI-CQI; The value of n is determined by the terminal device; The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single channel measurement resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

50. The terminal device according to claim 47, characterized in that, The second reporting quantity information indicates the reporting quantity in a second reporting quantity set, which includes at least one of the following reporting quantities: No content; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-2CQI; 2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; 2RI-2LI-2PMI-2CQI; The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

51. The terminal device according to claim 48, characterized in that, The third reporting quantity information indicates the reporting quantity in the third reporting quantity set, which includes at least one of the following reporting quantities: No content; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; CRI-2RI-CQI; 2RI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI.

52. The terminal device according to claim 47 or 51, characterized in that, The second set of reported data contains the same number of reported data as the third set of reported data.

53. The terminal device according to any one of claims 47-52, characterized in that, When none of the multiple reported data points indicate no content, at least two of the multiple reported data points indicate the same reported data point.

54. The terminal device according to any one of claims 47-53, characterized in that, The processor is specifically used to obtain the CSI corresponding to at least two of the multiple reported quantity information based on the same CMR measurement.

55. The terminal device according to any one of claims 47-53, characterized in that, The processor is specifically used to measure the CSI corresponding to the reported quantity information that does not indicate no content among the plurality of reported quantity information.

56. The terminal device according to any one of claims 47-55, characterized in that, The transceiver is specifically used by the terminal device to cascade the CSIs corresponding to the multiple reported quantity information according to the configuration order of the multiple reported quantity information, and then feed them back in the CSI report corresponding to the CSI reporting configuration.

57. The terminal device according to any one of claims 47-55, characterized in that, The transceiver is specifically used by the terminal device to report the CSI corresponding to the CSI configuration and discard them sequentially according to the configuration order of the multiple reported information; and to return the discarded CSI.

58. The terminal device according to any one of claims 47-55, characterized in that, The transceiver is specifically used to receive the reporting type information pre-configured by the network device; determine whether to use a first reporting type or a second reporting type based on the reporting type information, and report CSI according to the determined reporting type, wherein the first reporting type is to report the CSI corresponding to the plurality of reporting quantity information, and the second reporting type is to select one CSI corresponding to the reporting quantity information from the plurality of reporting quantity information for reporting.

59. The terminal device according to claim 58, characterized in that, The transceiver is specifically used to, when the terminal device determines that the second reporting type is adopted, report the indication information of the selected reporting quantity information, or the indication information of the CSI identifier corresponding to the selected reporting quantity information.

60. The terminal device according to any one of claims 47-59, characterized in that, The transceiver is specifically configured to select a reporting type from a first reporting type and a second reporting type, and include the indication information of the selected reporting type in the CSI report; The first reporting type is to report the CSIs corresponding to the plurality of reported quantity information, and the second reporting type is to select one CSI corresponding to the reported quantity information from the plurality of reported quantity information and report it.

61. The terminal device according to any one of claims 47-59, characterized in that, The transceiver is specifically used to feed back the CSI corresponding to the reported quantity information that does not indicate no content among the multiple reported quantity information in the CSI reporting.

62. A network device, characterized in that, include: A transceiver is used to send CSI reporting configuration to a terminal device. The CSI reporting configuration includes multiple reporting quantity information, which are used by the terminal device to measure the corresponding CSI respectively. The terminal device receives the CSI corresponding to at least one of the multiple reporting quantity information in the CSI reporting configuration. The multiple reporting quantity information includes a first reporting quantity information and a second reporting quantity information. The first reporting quantity information is used to report CSI based on the traditional single TRP measurement assumption, or to report CSI based on the NC-JT measurement assumption of multiple TRPs, or to report the CSI corresponding to the best measurement assumption among the single TRP and NC-JT measurement assumptions. The second reporting quantity information is used to report CSI based on the best single TRP measurement assumption, or to simultaneously report the CSI corresponding to each of the two TRPs. Wherein, when any one of the multiple reported quantity information indicates a reported quantity containing two sets of {RI, PMI} or two sets of {CRI, RI, PMI, CQI}, the CSI of the two sets of {RI, PMI} or the two sets of {CRI, RI, PMI, CQI} are respectively measured based on different CMR groups.

63. The network device according to claim 62, characterized in that, The multiple reported data also include a third reported data.

64. The network device according to claim 62, characterized in that, The first reported quantity information indicates a reported quantity in a first set of reported quantities, the first set of reported quantities containing at least one of the following reported quantities: No content; CRI-RI-PMI-CQI; CRI-RI-i1; CRI-RI-i1-CQI; CRI-RI-CQI; CRI-RSRP; SSB-index-RSRP; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; 2CRI-2RSRP; 2SSB-index-2RSRP; 2CRI-2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; CRI-nRI-nPMI-CQI; CRI-nRI-CQI; CRI-nRI-nLI-nPMI-CQI; nCRI-nRI-nPMI-CQI; nCRI-nRI-CQI; nCRI-nRI-nLI-nPMI-CQI; The value of n is determined by the terminal device; The first measurement hypothesis and the corresponding CSI, wherein the first measurement hypothesis is the measurement hypothesis recommended by the terminal device among the CSI measurement hypothesis based on a single channel measurement resource (CMR) and the CSI measurement hypothesis based on multiple CMRs.

65. The network device according to claim 62, characterized in that, The second reporting quantity information indicates the reporting quantity in a second reporting quantity set, which includes at least one of the following reporting quantities: No content; 2CRI-2RI-2PMI-CQI; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; 2CRI-2RI-CQI; CRI-2RI-CQI; 2RI-CQI; 2CRI-2RI-2LI-2PMI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI; 2CRI-2RI-2PMI-2CQI; 2RI-2PMI-2CQI; 2CRI-2RI-2CQI; 2RI-2CQI; 2CRI-2RI-2LI-2PMI-2CQI; 2RI-2LI-2PMI-2CQI; The second measurement hypothesis and the corresponding CSI, wherein the second measurement hypothesis is the measurement hypothesis recommended by the terminal device in the CSI measurement hypothesis based on a single CMR.

66. The network device according to claim 63, characterized in that, The third reporting quantity information indicates the reporting quantity in the third reporting quantity set, which includes at least one of the following reporting quantities: No content; CRI-2RI-2PMI-CQI; 2RI-2PMI-CQI; CRI-2RI-CQI; 2RI-CQI; CRI-2RI-2LI-2PMI-CQI; 2RI-2LI-2PMI-CQI; CRI-RI-PMI-CQI; CRI-RI-CQI; CRI-RI-LI-PMI-CQI.

67. The network device according to claim 65 or 66, characterized in that, The second set of reported data contains the same number of reported data as the third set of reported data.

68. The network device according to any one of claims 62-67, characterized in that, When none of the multiple reported data points indicate no content, at least two of the multiple reported data points indicate the same reported data point.

69. The network device according to any one of claims 62-68, characterized in that, At least two of the reported data points have CSI values ​​obtained based on the same CMR measurement.

70. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1-15, or 16-23.

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