Method, terminal, network device, system and medium for reporting channel state information

Abstract

The present disclosure relates to a method, a terminal, a network device, a system and a medium for reporting channel state information. The method comprises: receiving, by the terminal, first information sent by the network device, wherein the first information comprises configuration information of a first CSI report; receiving, by the terminal, second information sent by the network device, wherein the second information is used for indicating configuration information of a second CSI report; and switching, by the terminal, from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report. In the present disclosure, the terminal receives the first information and the second information sent by the network device to learn the first CSI report and the second CSI report configured by the network device, so that the terminal can switch or fall back to reporting according to the second CSI report at a suitable opportunity, which is conducive to improving the performance of CSI reporting.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method, terminal, network device, system, and medium for reporting channel status information. Background Technology

[0002] In channel status information (CSI) compression based on artificial intelligence (AI) or machine learning (ML), the encoder of the autoencoder model is generally deployed on the terminal side, and the decoder is deployed on the network (NW) side. This reduces the CSI reporting overhead while ensuring the restoration of channel information. Summary of the Invention

[0003] In AI-based CSI compression, there are instances where model performance is poor, affecting CSI reporting.

[0004] This disclosure provides a method, terminal, network device, system, and medium for reporting channel state information.

[0005] In a first aspect, this disclosure provides a method for reporting to CSI, the method comprising:

[0006] The terminal receives first information sent by the network device, the first information including configuration information of the first CSI report;

[0007] The terminal receives second information sent by the network device, the second information being used to indicate the configuration information of the second CSI report;

[0008] The terminal switches from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

[0009] Secondly, this disclosure provides a method for receiving CSI, the method comprising:

[0010] The network device sends first information to the terminal, the first information including configuration information of the first CSI report;

[0011] The network device sends second information to the terminal, the second information being used to indicate configuration information for the second CSI report, wherein the second information is used for the terminal to switch from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

[0012] Thirdly, this disclosure provides a terminal, including:

[0013] The transceiver module is used to receive first information sent by the network device, the first information including configuration information of the first CSI report;

[0014] The transceiver module is also used to receive second information sent by the network device, the second information being used to indicate configuration information for the second CSI report;

[0015] The processing module is used to switch from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

[0016] Fourthly, this disclosure provides a network device, including:

[0017] The transceiver module is used to send first information to the terminal, the first information including configuration information of the first CSI report;

[0018] The transceiver module is further configured to send second information to the terminal, the second information being used to indicate configuration information for the second CSI report, wherein the second information is used for the terminal to switch from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

[0019] Fifthly, this disclosure provides a terminal, including:

[0020] One or more processors;

[0021] The terminal is used to execute the method described in the first aspect.

[0022] Sixthly, this disclosure provides a network device, comprising:

[0023] One or more processors;

[0024] The terminal is used to execute the method described in the second aspect.

[0025] In a seventh aspect, this disclosure provides a communication system including a network device and a terminal, wherein the terminal is configured to implement the method described in the first aspect, and the network device is configured to implement the method described in the second aspect.

[0026] Eighth aspect, a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the first aspect or the second aspect.

[0027] In the method disclosed herein, the terminal receives first information and second information sent by the network device to obtain the first CSI report and the second CSI report configured by the network device. Thus, at an appropriate time, the terminal can switch from reporting according to the first CSI report to reporting according to the second CSI report, which is beneficial to improving the performance of CSI reporting. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0029] Figure 1 This is an exemplary schematic diagram of the architecture of a communication system provided according to embodiments of the present disclosure;

[0030] Figure 2a This is an exemplary interactive diagram of the method provided according to an embodiment of the present disclosure;

[0031] Figure 2b This is an exemplary interactive diagram of the method provided according to an embodiment of the present disclosure;

[0032] Figure 2c This is an exemplary interactive diagram of the method provided according to an embodiment of the present disclosure;

[0033] Figure 3a This is an exemplary flowchart of a method provided according to embodiments of the present disclosure;

[0034] Figure 3b This is an exemplary flowchart of a method provided according to embodiments of the present disclosure;

[0035] Figure 4a This is an exemplary flowchart of a method provided according to embodiments of the present disclosure;

[0036] Figure 4b This is an exemplary flowchart of a method provided according to embodiments of the present disclosure;

[0037] Figure 5a This is a schematic diagram of a signaling structure according to an embodiment of the present disclosure;

[0038] Figure 5b This is a schematic diagram of a signaling structure according to an embodiment of the present disclosure;

[0039] Figure 6a This is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure;

[0040] Figure 6b This is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure;

[0041] Figure 7a This is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0042] Figure 7b This is a schematic diagram of a communication device according to an embodiment of the present disclosure. Detailed Implementation

[0043] This disclosure provides a method, terminal, network device, system, and medium for reporting channel state information.

[0044] In a first aspect, this disclosure provides a method for reporting to CSI, the method comprising:

[0045] The terminal receives first information sent by the network device, the first information including configuration information of the first CSI report;

[0046] The terminal receives second information sent by the network device, the second information being used to indicate the configuration information of the second CSI report;

[0047] The terminal switched from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

[0048] In the above embodiments, the terminal receives first information and second information sent by the network device to learn about the first CSI report and the second CSI report configured by the network device. Thus, at an appropriate time, the terminal can switch from reporting according to the first CSI report to reporting according to the second CSI report, which is beneficial to improving the performance of CSI reporting.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the first CSI report includes a periodic CSI report based on artificial intelligence (AI).

[0050] In the above embodiments, when the performance of AI-based periodic CSI reporting is poor, the terminal can switch to or fall back to the second CSI reporting to improve the performance of periodic CSI reporting.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, the configuration information of the second CSI report includes at least one of the following:

[0052] Configure the identifier ID;

[0053] Report parameters;

[0054] Codebook configuration;

[0055] Configuring AI / ML models for artificial intelligence or machine learning;

[0056] Frequency domain parameters.

[0057] In the above embodiments, the configuration information of the second CSI report may include newly configured parameters or part of the configuration information of the first CSI report, so as to re-configure the reporting or use the relevant parameters in the first CSI report to switch or roll back the CSI reporting.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the second information includes configuration information for the second CSI report.

[0059] In the above embodiments, when the performance of AI-based periodic CSI reporting is poor, the terminal can learn about the new CSI reporting configuration based on the second information sent by the network device, so that the terminal can perform CSI reporting according to the second CSI report.

[0060] In conjunction with some embodiments of the first aspect, in some embodiments, the second information includes at least one information field, which is used to indicate the report content identifier corresponding to the second CSI report, and the first CSI report includes multiple report parameters corresponding to the report content identifier.

[0061] In the above embodiments, when the performance of AI-based periodic CSI reporting is poor, the terminal can obtain the report content identifier corresponding to the second CSI report based on the second information sent by the network device, thereby reusing the corresponding report parameters in the first CSI report, saving signaling resources of the second information, and also benefiting the terminal implementation.

[0062] In conjunction with some embodiments of the first aspect, in some embodiments, the second information includes a first information field, and different bit values ​​of the first information field indicate the corresponding report content identifier.

[0063] In the above embodiments, the second information can be configured with an information field to indicate different report content identifiers, so that the terminal can know which report parameter in the first CSI report corresponds to the second CSI report indicated by the network device based on the bit value of the first information field.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, each information field in at least one information field is configured with a corresponding report content identifier, wherein the report content identifier corresponding to the information field with a bit value of a first value is activated, and the report content identifier corresponding to the information field with a bit value of a second value is deactivated.

[0065] In the above embodiments, the second information can utilize a bitmap to indicate multiple report content identifiers through multiple information fields. Thus, the terminal can determine the report parameters in the first CSI report corresponding to the second CSI report indicated by the network device based on the bit values ​​of each information field.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the first CSI report is defined by a protocol as an AI-based non-periodic or semi-static CSI report.

[0067] In the above embodiments, the switching or rollback latency is relatively large in the AI-based periodic CSI reporting method. Therefore, the AI-based periodic CSI reporting can be avoided through protocol definition, and the terminal can perform AI-based non-periodic or semi-static CSI reporting.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the second information is sent via a Media Access Control Unit (MAC CE).

[0069] In the above embodiments, when the performance of AI-based periodic CSI reporting is poor, the network device can overwrite the content of the first CSI report in the first information with the content of the second CSI report in the MAC CE, so as to reduce the latency during CSI switching or rollback.

[0070] In conjunction with some embodiments of the first aspect, in some embodiments, the effective time of the second information is: the time after the terminal sends the feedback information corresponding to the first channel to the network device for a first duration;

[0071] The first channel is used to transmit the second information.

[0072] In the above embodiments, after receiving the second information, the terminal can apply the second information at an appropriate time, that is, apply the second CSI report.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes multiple AI-based, non-periodic first CSI reports.

[0074] In the above embodiments, when the performance of AI-based non-periodic CSI reporting is poor, the terminal can switch or roll back CSI reporting at an appropriate time to improve the performance of CSI reporting.

[0075] In conjunction with some embodiments of the first aspect, in some embodiments, the second information is used to indicate a configuration identifier for a second CSI report, wherein the second CSI report corresponds to one of a plurality of first CSI reports.

[0076] In the above embodiments, when the performance of AI-based non-periodic CSI reporting is poor, the terminal can roll back according to the network device configuration and the configuration of different CSI reports to improve CSI reporting performance.

[0077] In conjunction with some embodiments of the first aspect, in some embodiments, the second information is transmitted via downlink control information (DCI).

[0078] In the above embodiments, the terminal can receive second information sent by the network device through DCI to dynamically activate the configuration of the corresponding CSI report.

[0079] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes multiple AI-based semi-static first CSI reports.

[0080] In the above embodiments, when the performance of AI-based semi-static CSI reporting is poor, the terminal can roll back according to the network device configuration and the configuration of different CSI reports to improve CSI reporting performance.

[0081] In conjunction with some embodiments of the first aspect, in some embodiments, the second information is used to indicate the activation or deactivation of the first CSI report, wherein the second CSI report corresponds to the first CSI report that is activated among a plurality of first CSI reports.

[0082] In the above embodiment, the terminal determines the second CSI report based on the second information sent by the network device, so that CSI rollback can be performed in a timely manner when the reporting performance is poor.

[0083] In conjunction with some embodiments of the first aspect, in some embodiments, the second information is sent via MAC CE or DCI.

[0084] In the above embodiments, when the performance of AI-based semi-static CSI reporting is poor, the terminal can fall back according to the second information sent by the network device through corresponding signaling.

[0085] Secondly, this disclosure provides a method for receiving CSI, the method comprising:

[0086] The network device sends first information to the terminal, the first information including configuration information of the first CSI report;

[0087] The network device sends a second message to the terminal. The second message is used to indicate the configuration information of the second CSI report. The second message is used to switch the terminal from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

[0088] In the above embodiments, the network device sends first information and second information to the terminal to configure or indicate the first CSI report and the second CSI report to the terminal, so that the terminal can switch or fall back to reporting according to the second CSI report when appropriate, which is beneficial to improving the performance of CSI reporting.

[0089] In conjunction with some embodiments of the second aspect, in some embodiments, the first CSI report includes periodic CSI reports based on artificial intelligence (AI).

[0090] In conjunction with some embodiments of the second aspect, in some embodiments, the configuration information of the second CSI report includes at least one of the following:

[0091] Configure the identifier ID;

[0092] Report parameters;

[0093] Codebook configuration;

[0094] AI / ML model configuration;

[0095] Frequency domain parameters.

[0096] In conjunction with some embodiments of the second aspect, in some embodiments, the second information includes configuration information of the second CSI report.

[0097] In conjunction with some embodiments of the second aspect, in some embodiments, the second information includes at least one information field, which is used to indicate the report content identifier corresponding to the second CSI report.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, the second information includes a first information field, and different bit values ​​of the first information field are configured to indicate the corresponding report content identifier.

[0099] In conjunction with some embodiments of the second aspect, in some embodiments, each information field in at least one information field is configured with a corresponding report content identifier, wherein the report content identifier corresponding to the information field with a bit value of a first value is activated, and the report content identifier corresponding to the information field with a bit value of a second value is deactivated.

[0100] In conjunction with some embodiments of the second aspect, in some embodiments, the first CSI report is defined by a protocol as an AI-based non-periodic or semi-static CSI report.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, the second information is sent via a Media Access Control Unit (MAC CE).

[0102] In conjunction with some embodiments of the second aspect, in some embodiments, the effective time of the second information is: the time after the terminal sends the feedback information corresponding to the first channel to the network device for a first duration;

[0103] The first channel is used to transmit the second information.

[0104] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes multiple AI-based, non-periodic first CSI reports.

[0105] In conjunction with some embodiments of the second aspect, in some embodiments, the second information is used to indicate a configuration identifier for a second CSI report, wherein the second CSI report corresponds to one of a plurality of first CSI reports.

[0106] In conjunction with some embodiments of the second aspect, in some embodiments, the second information is sent via downlink control information (DCI).

[0107] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes multiple AI-based semi-static first CSI reports.

[0108] In conjunction with some embodiments of the second aspect, in some embodiments, the second information is used to indicate the activation or deactivation of the first CSI report, wherein the second CSI report corresponds to the first CSI report that is activated among a plurality of first CSI reports.

[0109] In conjunction with some embodiments of the second aspect, in some embodiments, the second information is sent via MAC CE or DCI.

[0110] Thirdly, this disclosure provides a terminal, including:

[0111] The transceiver module is used to receive first information sent by the network device, the first information including configuration information of the first CSI report;

[0112] The transceiver module is also used to receive second information sent by the network device, which is used to indicate the configuration information of the second CSI report;

[0113] The processing module is used to switch from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

[0114] Fourthly, this disclosure provides a network device, including:

[0115] The transceiver module is used to send first information to the terminal, which includes configuration information for the first CSI report;

[0116] The transceiver module is also used to send second information to the terminal, which is used to indicate the configuration information of the second CSI report. The second information is used to switch the terminal from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

[0117] Fifthly, this disclosure provides a terminal, including:

[0118] One or more processors;

[0119] The terminal is used to execute the method described in the first aspect.

[0120] Sixthly, this disclosure provides a network device, comprising:

[0121] One or more processors;

[0122] The terminal is used to execute the method described in the second aspect.

[0123] In a seventh aspect, this disclosure provides a communication system including a network device and a terminal, wherein the terminal is configured to implement the method described in the first aspect, and the network device is configured to implement the method described in the second aspect.

[0124] Eighth aspect, a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the first aspect or the second aspect.

[0125] Ninthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first and second aspects.

[0126] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in alternative implementations of the first and second aspects.

[0127] Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and second aspects above.

[0128] It is understood that the aforementioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0129] This disclosure provides a method, terminal, network device, system, and medium for reporting channel state information.

[0130] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0131] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0132] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0133] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0134] In the embodiments of this disclosure, "multiple" refers to two or more.

[0135] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0136] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0137] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0138] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0139] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0140] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0141] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0142] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0143] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0144] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cellgroup," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)," etc.

[0145] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0146] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0147] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0148] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0149] Figure 1 This is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0150] like Figure 1 As shown, the communication system 100 includes a terminal 101 and a network device 102.

[0151] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0152] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0153] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), wireless backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a wireless fidelity (WiFi) system.

[0154] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0155] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0156] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0157] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions provided in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this disclosure are also applicable to similar technical problems.

[0158] The following embodiments of this disclosure can be applied to Figure 1 The communication system 100 shown, or a part thereof, but not limited to it.

[0159] Figure 1 The entities shown are illustrative; a communication system may include... Figure 1 All or part of the main body, or may include Figure 1 Other entities besides the main body, the number and form of each entity are arbitrary, the connection relationship between the entities is illustrative, the entities may not be connected or may be connected, and the connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0160] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Futuregeneration radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0161] In this embodiment of the disclosure, CSI reporting based on AI and non-AI generally includes three reporting methods: periodic, semi-static, and aperiodic. The main difference between AI-based and non-AI-based CSI reporting lies in whether the CSI obtained by terminal 101 based on the measurement results is obtained using an AI compression scheme or a codebook approach.

[0162] In this embodiment of the disclosure, for different types of CSI reporting, if the reporting performance is poor, and if different types of CSI reporting all adopt a unified switching or unified rollback method, the frequency domain characteristics and reporting resources used by different types of CSI reporting are different, making it difficult to implement a unified rollback method and not flexible enough.

[0163] In this embodiment of the disclosure, a method for rolling back different types of CSI reports is provided.

[0164] It is worth noting that during the periodic CSI reporting rollback, network device 102 needs to first release the previous reporting configuration information and then reconfigure the new reporting configuration through Radio Resource Control (RRC), which results in a significant delay.

[0165] Figure 2a This is an interactive schematic diagram illustrating a method for reporting channel state information according to an embodiment of this disclosure. For example... Figure 2a As shown, this disclosure relates to a method for reporting channel state information, the method including:

[0166] In step S2101, network device 102 sends first information to terminal 101.

[0167] In some embodiments, the first information includes configuration information for a first CSI report, which may also be referred to as the configuration of the first CSI report, the configuration of the first CSI report, or the configuration of the first CSI reporting.

[0168] Optionally, the first CSI report is used to represent the CSI report configured when the network device 102 was initially configured or before CSI rollback was involved.

[0169] In some embodiments, network device 102 may configure a first CSI report via RRC, for example, network device 102 may send an RRC message that includes first information.

[0170] Optionally, the CSIMeasConfig in the RRC message includes: CSI measurement resource configuration (csi-ResourceConfig) and CSI report configuration (csi-ReportConfig). The CSI measurement resource configuration is used by terminal 101 to perform CSI measurements, and the CSI report configuration is used by terminal 101 to report CSI. For example, a first CSI report is used by terminal 101 to report CSI based on this first CSI report.

[0171] In one optional example, the CSI measurement resource configuration includes: a CSI resource configuration identifier (csi-ResourceConfigId), a CSI Reference Signal (CSI-RS) resource, and a CSI Interference Measurement (CSI-IM) resource. In this example, the CSI resource, such as the CSI-RS resource, can be periodic, non-periodic, or semi-static.

[0172] In another optional example, the CSI report configuration includes: a CSI report configuration identifier (csi-ReportConfigId) and a CSI report configuration type (ReportConfigType). In this example, the CSI report configuration type includes: periodic, non-periodic, or semi-static, meaning that CSI reports can be periodic, non-periodic, or semi-static.

[0173] Optionally, the CSI measurement resource configuration identifier and the CSI report configuration identifier are associated or correspond to each other, that is, the CSI measurement resource configuration and the CSI report configuration are associated or correspond to each other. For example, the first CSI report has a corresponding or associated first CSI measurement resource configuration.

[0174] In some embodiments, the first information may include only the first CSI report, or it may include the first CSI report and the first CSI measurement resource configuration.

[0175] In some embodiments, the first CSI report configuration includes one or more of the following: configuration identifier ID, report quantity, codebook configuration, AI / ML model configuration, and frequency domain parameters.

[0176] Optionally, the report parameters can indicate whether the CSI reporting corresponding to the first CSI report is based on AI or codebook. The report parameters can be indicated through the report content in the CSI report configuration, which may include multiple sets of report parameter configurations, distinguished by different report content IDs (CSI-Report content Id).

[0177] In one example, the configuration identifier for the first CSI report is csi-ReportConfigId=1. This first CSI report configuration includes two sets of report content, identified by csi-Report contentId=0 and csi-Report contentId=1, respectively. Specifically, the report parameters in the report content with csi-Report contentId=0 indicate CSI reporting based on a codebook, while the report parameters in the report content with csi-Report contentId=1 indicate CSI reporting based on AI. Specific application examples can be found in the detailed embodiments listed below, which will not be elaborated upon here.

[0178] In this embodiment of the disclosure, the first CSI report includes an AI-based periodic CSI report as an example for illustrative description. For instance, both the codebook-based CSI reporting and the AI-based CSI reporting in the first CSI report are periodic. It can be understood that the CSI-RS resources are also periodic at this time.

[0179] Optionally, for codebook-based reporting, the first CSI report configuration includes at least: report parameters, codebook configuration, and frequency domain parameters. The codebook configuration includes codebook type, codebook restriction, etc. The frequency domain parameters include the applicable wideband or subband.

[0180] Optionally, for AI-based reporting, the first CSI report configuration should include at least: report parameters, AI / ML model configuration, and frequency domain parameters. The AI / ML model configuration includes the feedback payload, AI / ML model ID, and AI / ML function ID, etc.

[0181] In some embodiments, CSI measurement resource configurations, such as the first CSI measurement resource configuration, and CSI report configurations, such as the first CSI report configuration, sent via RRC take effect immediately after configuration.

[0182] In some embodiments, terminal 101 receives the first information and learns the configuration related to CSI measurement and reporting based on the first information.

[0183] In step S2102, network device 102 sends CSI-RS to terminal 101.

[0184] In some embodiments, network device 102 may periodically send CSI-RS.

[0185] In some embodiments, terminal 101 receives CSI-RS sent by network device 102 according to first information or CSI-RS resource configuration, and obtains measurement results.

[0186] Step S2103: Terminal 101 reports CSI based on the first CSI report.

[0187] In some embodiments, terminal 101 reports a CSI based on a first CSI report.

[0188] Optionally, the first CSI report is an AI-based periodic CSI report. The terminal 101 can compress the measurement results based on AI to obtain the CSI and send the CSI to the network device 102.

[0189] In some embodiments, network device 102 receives the CSI corresponding to the first CSI report.

[0190] Step S2104: Network device 102 evaluates the CSI corresponding to the first CSI report.

[0191] In some embodiments, network device 102 may evaluate the CSI reported by terminal 101 according to relevant evaluation conditions.

[0192] For example, if network device 102 determines that the AI-based CSI performance is poor based on relevant reference data, it can instruct terminal 101 to roll back or switch CSI reporting, such as by executing step S2105.

[0193] In step S2105, network device 102 sends second information to terminal 101.

[0194] In some embodiments, the second information is used to indicate the configuration information of the second CSI report, which may also be referred to as the configuration of the second CSI report, the second CSI report configuration, or the second CSI reporting configuration.

[0195] In some embodiments, network device 102 may send the second information through a Media Access Control Element (MAC CE) to override the reporting configuration in the first information.

[0196] In some embodiments, the configuration information of the second CSI report includes at least one of the following:

[0197] Configure the identifier ID;

[0198] Report parameters;

[0199] Codebook configuration;

[0200] AI / ML model configuration;

[0201] Frequency domain parameters.

[0202] Optionally, the configuration information of the second CSI report includes multiple items from configuration identifier, report parameters, codebook configuration, AI / ML model configuration, and frequency domain parameters.

[0203] Optionally, the configuration identifier can be a periodic CSI report configuration ID.

[0204] Optionally, the configuration of the second CSI report can refer to the configuration of the first CSI report, and the second information indicates that the configuration information of the second CSI report can be obtained directly or indirectly.

[0205] In some embodiments, the second information indicating the configuration of the second CSI report may be in the form that the second information includes the configuration information of the second CSI report.

[0206] In this embodiment, the information in the second CSI report configuration may be the same as the information in the first CSI report configuration, such as both including configuration identifier, report parameters, codebook configuration and frequency domain parameters, etc., wherein one or more of the information differs between the two.

[0207] Alternatively, in this embodiment, the information in the second CSI report configuration is less than that in the first CSI report configuration, or the second CSI report configuration is a part of the first CSI report configuration, and the second CSI report configuration may only include the information that needs to be updated. For example, the second CSI report configuration may only include the new reporting parameter configuration, while other reporting configurations still reuse the first CSI report configuration.

[0208] Optionally, the second CSI report configuration remains associated with or corresponds to the first CSI measurement resource configuration.

[0209] For specific application examples, please refer to the specific embodiments listed below, which will not be repeated here.

[0210] In some embodiments, the second information may indicate the second CSI report configuration in the following way: the second information indicates the report content ID to associate with a certain report parameter in the first CSI report configuration.

[0211] For example, the second information includes at least one information field, which indicates the report content identifier corresponding to the second CSI report. The first CSI report includes multiple report parameters corresponding to multiple report content identifiers.

[0212] The report content identifier indicated by the second information corresponds to the report content identifier in the first CSI report. In other words, the second information reuses a set of report parameters from the first CSI report by instructing the report content identifier. This method saves signaling resources for the second information and is more convenient to implement in terminal 101.

[0213] In one example, the second information includes a first information field, with different bit values ​​in the first information field indicating the corresponding report content identifier.

[0214] In this example, the first information field may include one or more bits. For instance, taking a first information field containing one bit as an example, when the value of this one bit is 0, it corresponds to report content identifier 0; when the value of this one bit is 1, it corresponds to report content identifier 1. Thus, terminal 101 can determine which set of report parameters in the first CSI report corresponds to the second CSI report.

[0215] In another example, each information field in at least one information field is configured with a corresponding report content identifier, wherein the report content identifier corresponding to the information field with a bit value of a first value is activated, and the report content identifier corresponding to the information field with a bit value of a second value is deactivated.

[0216] In this example, each information field may include one bit, with the first value being 1 and the second value being 0. The report content identifier is indicated in a bitmap format. For example, if the value of information field 3 corresponds to 001, it means that the report content identifier 0 corresponding to the first bit is deactivated, the report content identifier 1 corresponding to the second bit is deactivated, and the report content identifier 2 corresponding to the third bit is activated.

[0217] Among them, the report content identifier corresponding to the second CSI report is the activated report content identifier, such as the report content identifier 2 mentioned above.

[0218] In some embodiments, the second information may further include: the serving cell ID and the bandwidth portion ID corresponding to the terminal 101.

[0219] In some embodiments, terminal 101 receives the second information.

[0220] Step S2106: Terminal 101 switches to reporting CSI based on the second CSI report.

[0221] Alternatively, terminal 101 reverts to reporting CSI based on the second CSI report.

[0222] In some embodiments, after receiving the second information, the terminal 101 may apply the second information when the second information takes effect, that is, apply the second CSI report to report CSI when the effective time is reached.

[0223] In one example, the effective time of the second information is: the time after the terminal sends the feedback information corresponding to the first channel to the network device; wherein, the first channel is used to transmit the second information.

[0224] The first channel is the PDSCH, which can be used to transmit MAC CE carrying the second information. Feedback information, such as Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) feedback, indicates that the PDSCH was successfully received.

[0225] For example, the second information takes effect X time units after the terminal sends back a HARQ-ACK for the PDSCH containing the MAC CE, where X > 0. The time unit can be a time slot, symbol, or millisecond, etc. In some embodiments, taking a second CSI report corresponding to a certain reporting parameter in the first CSI report as an example, the reporting parameter corresponding to the second CSI report is defined in a codebook-based manner for CSI reporting. Therefore, the terminal 101 can, according to the instruction of the network device 102, revert from AI-based periodic CSI reporting to codebook-based periodic CSI reporting to improve reporting performance.

[0226] In some embodiments, network device 102 receives the CSI corresponding to the second CSI report.

[0227] In some embodiments, network device 102 may also evaluate the CSI corresponding to the second CSI report. If there is still a performance problem, network device 102 may send new second information to indicate a new second CSI report, so that terminal 101 can perform CSI again according to the new second CSI report until the reported CSI meets the evaluation conditions.

[0228] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0229] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" can be used interchangeably. For example, a codebook can be a collection of one or more codewords / precoding matrices.

[0230] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0231] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0232] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".

[0233] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0234] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0235] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0236] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0237] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0238] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0239] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2106. For example, step S2101 may be implemented as a standalone embodiment, steps S2101 to S2103 may be implemented as standalone embodiments, and steps S2101 and S2105 to S2106 may be implemented as standalone embodiments, but are not limited thereto.

[0240] In some embodiments, the first CSI report is defined by a protocol as an AI-based non-periodic or semi-static CSI report. In this case, the method may include step S2101, or steps S2101 to S2103. That is, in this embodiment, configuring the first CSI report as an AI-based periodic CSI report is avoided, and AI-based periodic CSI reporting is not performed, thereby avoiding the need for complex periodic CSI reporting rollbacks. If a rollback is still required, it can be performed when the first CSI report is an AI-based non-periodic CSI report. Figure 2b The method referenced when the first CSI report is an AI-based semi-static CSI report. Figure 2c Way.

[0241] In some embodiments, steps S2102, S2103, and S2104 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0242] In some embodiments, see Figure 2a Other optional implementation methods described before or after the corresponding instruction manual.

[0243] In this embodiment of the disclosure, the periodic CSI reporting of terminal 101 based on AI can be reverted to periodic CSI reporting based on codebook to improve reporting performance.

[0244] Figure 2b This is an interactive schematic diagram illustrating a method for reporting channel state information according to an embodiment of this disclosure. For example... Figure 2b As shown, this disclosure relates to a method for reporting channel state information, the method including:

[0245] In step S2201, network device 102 sends first information to terminal 101.

[0246] In some embodiments, the implementation of step S2201 can refer to the relevant implementation of step S2101, and will not be repeated here.

[0247] In some embodiments, the first information includes multiple AI-based, non-periodic first CSI reports.

[0248] For example, the first information includes: the AI-based aperiodic first CSI report for configuration identifier #1, and the AI-based aperiodic first CSI report for configuration identifier #2.

[0249] In one example, the first information also includes one or more codebook-based aperiodic first CSI reports. For instance, the first information includes multiple aperiodic first CSI reports, including both AI-based and codebook-based aperiodic first CSI reports.

[0250] In step S2202, network device 102 sends CSI-RS to terminal 101.

[0251] In some embodiments, network device 102 sends non-periodic CSI-RS to terminal 101.

[0252] Step S2203: Terminal 101 reports CSI based on the first CSI report.

[0253] In some embodiments, the implementation of step S2203 can refer to the relevant implementation of step S2103, and will not be repeated here.

[0254] Optionally, the configuration identifier of the first CSI report configuration in step S2203 can be denoted as the first CSI report configuration #1, which can be an AI-based non-periodic CSI report.

[0255] Step S2204: Network device 102 evaluates the CSI corresponding to the first CSI report.

[0256] In some embodiments, the implementation of step S2204 can refer to the relevant implementation of step S2104, and will not be repeated here.

[0257] In step S2205, network device 102 sends second information to terminal 101.

[0258] In some embodiments, the second information is used to indicate the configuration identifier of the second CSI report, wherein the second CSI report corresponds to one of a plurality of first CSI reports.

[0259] Optionally, when the second information includes multiple AI-based non-periodic first CSI reports, the second CSI report may be the first CSI report configuration #2, which is different from the first CSI report configuration #1 in step S2203. It may be an AI-based non-periodic first CSI report or a codebook-based non-periodic first CSI report.

[0260] In some embodiments, the second information is sent via DCI.

[0261] Optionally, after sending DCI, network device 102 may trigger the first CSI report configuration #2 and the corresponding CSI-RS transmission.

[0262] Step S2206: Terminal 101 switches to reporting CSI based on the second CSI report.

[0263] In some embodiments, the implementation of step S2206 can refer to the relevant implementation of step S2106, and will not be repeated here.

[0264] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2206. For example, step S2201 may be implemented as a standalone embodiment, steps S2201 to S2203 may be implemented as standalone embodiments, and steps S2201 and S2205 to S2206 may be implemented as standalone embodiments, but are not limited thereto.

[0265] In some embodiments, steps S2202, S2203, and S2204 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0266] In some embodiments, see Figure 2b Other optional implementation methods described before or after the corresponding instruction manual.

[0267] In this embodiment of the disclosure, the terminal 101's AI-based non-periodic CSI reporting can be reverted to codebook-based non-periodic CSI reporting or to non-periodic CSI reporting based on other AIs to improve reporting performance.

[0268] Figure 2c This is an interactive schematic diagram illustrating a method for reporting channel state information according to an embodiment of this disclosure. For example... Figure 2c As shown, this disclosure relates to a method for reporting channel state information, the method including:

[0269] In step S2301, network device 102 sends first information to terminal 101.

[0270] In some embodiments, the implementation of step S2301 can refer to the relevant implementation of step S2101, and will not be repeated here.

[0271] In some embodiments, the first information includes multiple AI-based semi-static first CSI reports.

[0272] In one example, the first information also includes one or more semi-static first CSI reports based on codebooks.

[0273] In step S2302, network device 102 sends CSI-RS to terminal 101.

[0274] In some embodiments, network device 102 sends semi-static CSI-RS to terminal 101.

[0275] Step S2303: Terminal 101 reports CSI based on the first CSI report.

[0276] In some embodiments, the implementation of step S2303 can refer to the relevant implementation of step S2103, and will not be repeated here.

[0277] Optionally, the configuration identifier of the first CSI report configuration in step S2303 can be denoted as the first CSI report configuration #1, which can be an AI-based semi-static CSI report.

[0278] Step S2304: Network device 102 evaluates the CSI corresponding to the first CSI report.

[0279] In some embodiments, the implementation of step S2304 can refer to the relevant implementation of step S2104, and will not be repeated here.

[0280] In step S2305, network device 102 sends second information to terminal 101.

[0281] In some embodiments, the second information is used to indicate the activation or deactivation of the first CSI report, wherein the second CSI report corresponds to the first CSI report that is activated among a plurality of first CSI reports.

[0282] Optionally, the second CSI report may be the first CSI report configuration #2 among the multiple first CSI reports included in the second information. This first CSI report configuration #2 is different from the first CSI report configuration #1 in step S2303. It may be a semi-static first CSI report based on AI or a semi-static first CSI report based on codebook.

[0283] In some embodiments, the second information is transmitted via MAC CE or DCI.

[0284] Optionally, in semi-static CSI reporting on the Physical Uplink Control Channel (PUCCH), network device 102 can activate or deactivate the first CSI report via MAC CE. For example, MAC CE can activate or deactivate the first CSI report corresponding to a relevant configuration identifier.

[0285] Optionally, in semi-static CSI reporting on the Physical Uplink Shared channel (PUSCH), network device 102 can activate or deactivate the first CSI report via DCI. For example, DCI can activate or deactivate the first CSI report corresponding to a relevant configuration identifier.

[0286] Step S2306, terminal 101 switches to reporting CSI based on the second CSI report.

[0287] In some embodiments, the implementation of step S2306 can refer to the relevant implementation of step S2106, and will not be repeated here.

[0288] The communication method involved in the embodiments of this disclosure may include at least one of steps S2301 to S2306. For example, step S2301 may be implemented as a standalone embodiment, steps S2301 to S2303 may be implemented as standalone embodiments, and steps S2301 and S2305 to S2306 may be implemented as standalone embodiments, but are not limited thereto.

[0289] In some embodiments, steps S2302, S2303, and S2304 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0290] In some embodiments, see Figure 2c Other optional implementation methods described before or after the corresponding instruction manual.

[0291] In this embodiment of the disclosure, the semi-static CSI reporting based on AI by terminal 101 can be reverted to semi-static CSI reporting based on codebook or to semi-static CSI reporting based on other AIs, so as to improve reporting performance.

[0292] In the rollback method based on different CSI reporting types in this embodiment, it is possible to switch from AI-based CSI feedback to non-AI-based CSI feedback, or to switch from AI#1-based CSI feedback to AI#2-based CSI feedback.

[0293] Figure 3a This is a flowchart illustrating a method for reporting channel state information according to an embodiment of this disclosure. Figure 3a As shown, this disclosure relates to a method for reporting channel state information, which is executed by terminal 101. The method includes:

[0294] Step S3101: Terminal 101 obtains the first information.

[0295] In some embodiments, the implementation of step S3101 can refer to the relevant implementations of steps S2101, S2201 and S2301, which will not be repeated here.

[0296] In some embodiments, terminal 101 may receive first information from network device 102, or receive or obtain first information from other entities.

[0297] Step S3102, terminal 101 acquires CSI-RS.

[0298] In some embodiments, the implementation of step S3102 can refer to the relevant implementations of steps S2102, S2202 and S2302, which will not be repeated here.

[0299] Step S3103: Terminal 101 reports CSI based on the first CSI report.

[0300] In some embodiments, the implementation of step S3103 can refer to the relevant implementations of steps S2103, S2203 and S2303, which will not be repeated here.

[0301] In some embodiments, terminal 101 may report CSI to network device 102 or to other entities.

[0302] Step S3104, terminal 101 obtains the second information.

[0303] In some embodiments, the implementation of step S3104 can refer to the relevant implementations of steps S2105, S2205 and S2305, which will not be repeated here.

[0304] In some embodiments, terminal 101 may receive second information from network device 102, or receive or obtain second information from other entities.

[0305] Step S3105, terminal 101 switches to reporting CSI based on the second CSI report.

[0306] In some embodiments, the implementation of step S3105 can be referred to the relevant implementations of steps S2106, S2206 and S2306, which will not be repeated here.

[0307] The communication method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3105.

[0308] In some embodiments, see Figure 3a Other optional implementations described before or after the corresponding specification, such as see Figures 2a-2c Corresponding implementation examples.

[0309] Figure 3b This is a flowchart illustrating a method for reporting channel state information according to an embodiment of this disclosure. Figure 3b As shown, this disclosure relates to a method for reporting channel state information, which is executed by terminal 101. The method includes:

[0310] In step S3201, terminal 101 receives the first information sent by network device 102.

[0311] In some embodiments, the implementation of step S3201 can refer to the relevant implementations of steps S2101, S2201, S2301 and S3101, which will not be repeated here.

[0312] In some embodiments, the first information includes configuration information for the first CSI report.

[0313] In the first example, the first CSI report includes periodic CSI reports based on artificial intelligence (AI).

[0314] In this example, the configuration information for the second CSI report includes at least one of the following:

[0315] Configure the identifier ID;

[0316] Report parameters;

[0317] Codebook configuration;

[0318] Configuring AI / ML models for artificial intelligence or machine learning;

[0319] Frequency domain parameters.

[0320] Optionally, the configuration information of the second CSI report includes multiple items from configuration identifier, report parameters, codebook configuration, AI / ML model configuration, and frequency domain parameters.

[0321] See this example. Figure 2a The relevant implementation methods will not be described in detail here.

[0322] In the second example, the first CSI report can also be defined via protocol as an AI-based, non-periodic or semi-static CSI report. See [link to example]. Figure 2a The relevant implementation methods will not be described in detail here.

[0323] In the third example, the first information includes multiple AI-based, non-periodic first CSI reports.

[0324] See this example. Figure 2b The relevant implementation methods will not be described in detail here.

[0325] In the fourth example, the first information includes multiple AI-based semi-static first CSI reports.

[0326] See this example. Figure 2c The relevant implementation methods will not be described in detail here.

[0327] In step S3202, terminal 101 receives the second information sent by network device 102.

[0328] In some embodiments, the implementation of step S3202 can be found in the relevant implementations of steps S2105, S2205, S2305 and S3104, and will not be repeated here.

[0329] In some embodiments, the second information is used to indicate configuration information for the second CSI report.

[0330] Based on the first example above, the second information includes the configuration information for the second CSI report.

[0331] In this example, the second information includes at least one information field, which is used to indicate the report content identifier corresponding to the second CSI report.

[0332] For example, the second information includes a first information field, and different bit values ​​of the first information field indicate the corresponding report content identifier.

[0333] For example, each information field in at least one information field is configured with a corresponding report content identifier, wherein the report content identifier corresponding to the information field with a bit value of a first value is activated, and the report content identifier corresponding to the information field with a bit value of a second value is deactivated.

[0334] In this example, the second message is sent via MAC CE.

[0335] In this example, the effective time of the second information is: the time after the terminal sends the feedback information corresponding to the first channel to the network device; wherein, the first channel is used to transmit the second information.

[0336] See this example. Figure 2a The relevant implementation methods will not be described in detail here.

[0337] In conjunction with the third example above, the second information is used to indicate the configuration identifier of the second CSI report, wherein the second CSI report corresponds to one of a plurality of first CSI reports.

[0338] In this example, the second information is sent via downlink control information (DCI).

[0339] See this example. Figure 2b The relevant implementation methods will not be described in detail here.

[0340] In conjunction with the fourth example above, the second information is used to indicate the activation or deactivation of the first CSI report, wherein the second CSI report corresponds to the first CSI report that is activated among multiple first CSI reports.

[0341] In this example, the second message is sent via MAC CE or DCI.

[0342] See this example. Figure 2c The relevant implementation methods will not be described in detail here.

[0343] In step S3203, terminal 101 switches from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

[0344] In some embodiments, the implementation of step S3203 can be found in the relevant implementations of steps S2106, S2206, S2306 and S3105, and will not be repeated here.

[0345] In this embodiment of the present disclosure, terminal 101 receives first information and second information sent by network device 102 to learn about the first CSI report and second CSI report configured by the network device. Thus, at an appropriate time, the terminal can switch from reporting according to the first CSI report to reporting according to the second CSI report, which is beneficial to improving the performance of CSI reporting.

[0346] Figure 4a This is a flowchart illustrating a method for reporting channel state information according to an embodiment of this disclosure. Figure 4a As shown, this disclosure relates to a method for reporting channel state information, which is executed by network device 102. The method includes:

[0347] In step S4101, network device 102 sends the first information.

[0348] In some embodiments, the implementation of step S4101 can refer to the relevant implementations of steps S2101, S2201 and S2301, which will not be repeated here.

[0349] In some embodiments, network device 102 may send first information to terminal 101 or to other entities.

[0350] In step S4102, network device 102 sends CSI-RS.

[0351] In some embodiments, the implementation of step S4102 can refer to the relevant implementations of steps S2102, S2202 and S2302, which will not be repeated here.

[0352] In some embodiments, network device 102 may send CSI-RS to terminal 101 or to other entities.

[0353] Step S4103, network device 102 obtains CSI.

[0354] In some embodiments, the implementation of step S4103 can be found in the relevant implementations of steps S2103, S2203 and S2303, which will not be repeated here.

[0355] In some embodiments, network device 102 may receive CSI from terminal 101, or receive or obtain CSI from other entities.

[0356] Step S4104: Network device 102 evaluates the CSI corresponding to the first CSI report.

[0357] In some embodiments, the implementation of step S4104 can refer to the relevant implementations of steps S2104, S2204 and S2304, which will not be repeated here.

[0358] In step S4105, network device 102 sends the second information.

[0359] In some embodiments, the implementation of step S4105 can refer to the relevant implementations of steps S2105, S2205 and S2305, which will not be repeated here.

[0360] The communication method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4105.

[0361] In some embodiments, see Figure 4a Other optional implementations described before or after the corresponding specification, such as see Figures 2a-2c Corresponding implementation examples.

[0362] Figure 4a This is a flowchart illustrating a method for reporting channel state information according to an embodiment of this disclosure. Figure 4a As shown, this disclosure relates to a method for reporting channel state information, which is executed by network device 102. The method includes:

[0363] In step S4201, network device 102 sends first information to terminal 101.

[0364] In some embodiments, the implementation of step S4201 can refer to the relevant implementations of steps S2101, S2201, S2301 and S4101, which will not be repeated here.

[0365] In some embodiments, the first information includes configuration information for the first CSI report.

[0366] In the first example, the first CSI report includes periodic CSI reports based on artificial intelligence (AI).

[0367] In this example, the configuration information for the second CSI report includes at least one of the following:

[0368] Configure the identifier ID;

[0369] Report parameters;

[0370] Codebook configuration;

[0371] Configuring AI / ML models for artificial intelligence or machine learning;

[0372] Frequency domain parameters.

[0373] Optionally, the configuration information of the second CSI report includes multiple items from configuration identifier, report parameters, codebook configuration, AI / ML model configuration, and frequency domain parameters.

[0374] See this example. Figure 2a The relevant implementation methods will not be described in detail here.

[0375] In the second example, the first CSI report can also be defined via protocol as an AI-based, non-periodic or semi-static CSI report. See [link to example]. Figure 2a The relevant implementation methods will not be described in detail here.

[0376] In the third example, the first information includes multiple AI-based, non-periodic first CSI reports.

[0377] See this example. Figure 2b The relevant implementation methods will not be described in detail here.

[0378] In the fourth example, the first information includes multiple AI-based semi-static first CSI reports.

[0379] See this example. Figure 2c The relevant implementation methods will not be described in detail here.

[0380] In step S4202, network device 102 sends second information to terminal 101.

[0381] In some embodiments, the second information is used to indicate configuration information for the second CSI report.

[0382] In some embodiments, the second information is used for the terminal to switch from reporting CSI based on a first CSI report to reporting CSI based on a second CSI report.

[0383] Based on the first example above, the second information includes the configuration information for the second CSI report.

[0384] In this example, the second information includes at least one information field, which is used to indicate the report content identifier corresponding to the second CSI report.

[0385] For example, the second information includes a first information field, and different bit values ​​of the first information field indicate the corresponding report content identifier.

[0386] For example, each information field in at least one information field is configured with a corresponding report content identifier, wherein the report content identifier corresponding to the information field with a bit value of a first value is activated, and the report content identifier corresponding to the information field with a bit value of a second value is deactivated.

[0387] In this example, the second message is sent via MAC CE.

[0388] In this example, the effective time of the second information is: the time after the terminal sends the feedback information corresponding to the first channel to the network device; wherein, the first channel is used to transmit the second information.

[0389] See this example. Figure 2a The relevant implementation methods will not be described in detail here.

[0390] In conjunction with the third example above, the second information is used to indicate the configuration identifier of the second CSI report, wherein the second CSI report corresponds to one of a plurality of first CSI reports.

[0391] In this example, the second information is sent via downlink control information (DCI).

[0392] See this example. Figure 2b The relevant implementation methods will not be described in detail here.

[0393] In conjunction with the fourth example above, the second information is used to indicate the activation or deactivation of the first CSI report, wherein the second CSI report corresponds to the first CSI report that is activated among multiple first CSI reports.

[0394] In this example, the second message is sent via MAC CE or DCI.

[0395] See this example. Figure 2c The relevant implementation methods will not be described in detail here.

[0396] In this embodiment of the present disclosure, network device 102 sends first information and second information to terminal 101 to configure or indicate a first CSI report and a second CSI report to the terminal, so that the terminal can switch or fall back from reporting according to the first CSI report to reporting according to the second CSI report at an appropriate time, which is beneficial to improving the performance of CSI reporting.

[0397] To facilitate understanding of the embodiments of this disclosure, some specific implementation methods are listed below.

[0398] Example 1:

[0399] This disclosure provides rollback methods for different types of CSI reports.

[0400] (1) For periodic CSI reporting, configure MAC CE override RRC.

[0401] Optionally, the RRC configuration may correspond to the first information in the above embodiments.

[0402] Optionally, the information in the MAC CE may correspond to the second information in the above embodiments.

[0403] Optionally, you may refer to Figure 2a For the embodiments.

[0404] (2) For non-periodic CSI reporting, multiple non-periodic CSI reporting configurations are configured through RRC, and DCI triggers the corresponding configuration ID.

[0405] Optionally, the non-periodic CSI reporting configuration may correspond to the non-periodic first CSI reporting configuration of the above embodiments.

[0406] Optionally, the configuration ID triggered by DCI may correspond to the second CSI report configuration in the above embodiments.

[0407] (3) For semi-static reporting on PUCCH, multiple semi-static CSI reporting configurations are configured through RRC, and the corresponding configuration IDs are activated and deactivated by MAC CE.

[0408] Optionally, the semi-static CSI reporting configuration may correspond to the semi-static first CSI report configuration of the above embodiments.

[0409] Optionally, the configuration ID activated by MAC CE may correspond to the second CSI report configuration in the above embodiments.

[0410] (4) For semi-static reporting on PUSCH, multiple semi-static CSI reporting configurations are configured through RRC, and the corresponding configuration IDs are activated and deactivated by DCI.

[0411] Example 2:

[0412] In Example 1, (1) periodic CSI reporting, the MAC CE override RRC configuration means that the reporting configuration indicated in the MAC CE can override the configuration in the RRC. The configurations that can be overridden include at least:

[0413] For codebook-based reporting, at least the following parameters should be included: report quantity, codebook configuration, and wideband or subband. The codebook configuration includes codebook type and codebook restriction.

[0414] For AI-based reporting, at a minimum, it should include: report parameters, AI model configuration, and bandwidth or subband. The AI ​​model configuration includes feedback payload, etc.

[0415] Optionally, the configuration that can be overridden corresponds to the configuration information of the second CSI report in the foregoing embodiments.

[0416] Example 3:

[0417] In Example 1 (1) periodic CSI reporting, the MAC CE can be designed in several ways.

[0418] For example, MAC CE can directly include specific configuration information or indicate configuration IDs.

[0419] When a MAC CE includes a configuration ID, the MAC CE includes one or more of the following:

[0420] ① Serving Cell ID

[0421] ②BWP ID,

[0422] ③ Periodic CSI report configuration ID

[0423] ④Si, i corresponds to different report content IDs. For example, in this example, i can correspond to the PMI configuration ID. Si = 1 indicates that the configuration is activated, and Si = 0 indicates that the configuration is deactivated. Optionally, Si corresponds to at least one information field in the above embodiment.

[0424] Alternatively, Si represents the ID used, in which case Si corresponds to the first information field in the above embodiment.

[0425] When MAC CE includes specific configuration information, MAC CE includes one or more of the following:

[0426] ①Service Community ID,

[0427] ②BWP ID,

[0428] ③ Periodic CSI report configuration identifier,

[0429] ④ Report Parameters (Report quantity)

[0430] ⑤ Codebook configuration, including codebook type, codebook payload size, etc.

[0431] ⑥ Frequency domain feature

[0432] ⑥ Codebook restriction or report restriction.

[0433] Example 4:

[0434] The rollback method mentioned above can also be understood as a switching method, that is, switching from AI-based CSI feedback to non-AI-based CSI feedback. Furthermore, it can also be switching from AI#1-based CSI feedback to AI#2-based CSI feedback.

[0435] Example 5:

[0436] Considering the limited resources available for periodic CSI reporting and the complexity of the fallback scheme, AI-based periodic CSI reporting can also be avoided through standard avoidance methods. In this case, the UE does not want the report quantity in the base station's periodic CSI reporting configuration to be based on AI reporting.

[0437] Based on at least one of the examples in Examples 1 through 5, the following are some specific examples:

[0438] Specific example 1:

[0439] To override RRC configuration in MAC CE, first configure the following via RRC:

[0440] CSI-ReportConfig::= SEQUENCE{

[0441] reportConfigId CSI-ReportConfigId=1,

[0442] carrier ServCellIndex=3

[0443] resourcesForChannelMeasurement CSI-ResourceConfigId,

[0444] csi-IM-ResourcesForInterference CSI-ResourceConfigId

[0445] nzp-CSI-RS-ResourcesForInterference CSI-ResourceConfigId

[0446] reportConfigType periodic

[0447] Report content CSI-ReportContentId=1

[0448] The report content can be configured using other RRC information elements (IE), as follows:

[0449] Report content::=

[0450] CSI-ReportContentId=0

[0451] reportQuantity cri-RI-PMI-CQI

[0452] reportFreqConfiguration SEQUENCE{

[0453] cqi-FormatIndicator widebandCQI

[0454] pmi-FormatIndicator widebandPMI

[0455] codebookConfig CodebookConfig

[0456] Report content::=

[0457] CSI-ReportContentId=1

[0458] reportQuantity AI-cri-RI-PMI-CQI

[0459] reportFreqConfiguration SEQUENCE{

[0460] cqi-FormatIndicator widebandCQI

[0461] pmi-FormatIndicator widebandPMI

[0462] AIConfig AIConfig

[0463] Based on the above RRC configuration, it can be done through... Figures 5a-5b The MAC CE instance is overridden.

[0464] Among them, Figure 5a In this context, multiple information fields are designated S0, S1, S2, and S3, each corresponding to a report content identifier. S0 = 1 indicates that the report content corresponding to the report content identifier of S0 is activated, for example, the second CSI report uses the configuration corresponding to S0; S1 = 0 indicates that the report content corresponding to the report content identifier of S1 is deactivated.

[0465] exist Figure 5b In the first information field, S, where S=0 indicates report content identifier #0. For example, the second CSI report uses the configuration corresponding to report content identifier #0.

[0466] As is understandable, in the diagram, CSI config ID represents the CSI report configuration identifier, and R indicates a reserved bit.

[0467] Specific example 2:

[0468] The method of this instance may include the following steps:

[0469] Step S5101: The base station configures aperiodic CSI reporting #1 (i.e., configured with identifier #1, the same below) via RRC, and aperiodic CSI reporting #2, where...

[0470] Optionally, the report quantity of #1 is based on the CSI report of AI model #1;

[0471] Optionally, the report-quantity of #2 is based on the eTypeII codebook for CSI reporting, and the specific eTypeII codebook parameter configuration method reuses existing technology.

[0472] In step S5102, at time 1, the base station triggers the non-periodic CSI reporting #1 and non-periodic CSI-RS transmission via DCI signaling.

[0473] Optionally, the UE then uses AI model #1 to calculate the CSI and report it.

[0474] In step S5103, at time 2, the base station determines that the reporting performance of channel feature vector information based on AI model #1 is poor.

[0475] In step S5104, at time 3, the base station triggers aperiodic CSI reporting #2 and aperiodic CSI-RS transmission via DCI signaling.

[0476] Optionally, the UE then calculates and reports the CSI based on the eTypeII codebook.

[0477] Specific example 3:

[0478] The method of this instance may include the following steps:

[0479] Step S5201: The base station configures aperiodic CSI reporting #1, aperiodic CSI reporting #2, and aperiodic CSI reporting #3 via RRC.

[0480] Optionally, the report quantity of #1 is based on the CSI report of AI model #1;

[0481] Optionally, the report-quantity of #2 is based on the eTypeII codebook for CSI reporting, and the specific eTypeII codebook parameter configuration method reuses existing technology;

[0482] Optionally, the report-quantity of #3 is based on the CSI report of AI model #2.

[0483] In step S5202, at time 1, the base station triggers aperiodic CSI reporting #1 and aperiodic CSI-RS transmission via DCI signaling.

[0484] Optionally, the UE then uses AI model #1 to calculate the CSI and report it.

[0485] In step S5203, at time 2, the base station determines that the reporting performance of channel feature vector information based on AI model #1 is poor.

[0486] In step S5204, at time 3, the base station triggers aperiodic CSI reporting #3 and aperiodic CSI-RS transmission via DCI signaling.

[0487] Optionally, the UE then uses AI model #2 to calculate the CSI and report it.

[0488] Specific example 4:

[0489] The method of this instance may include the following steps:

[0490] Step S5301: The base station configures semi-static CSI reporting #1 and semi-static CSI reporting #2 via RRC.

[0491] Optionally, the report quantity of #1 is reported based on the channel feature vector information of AI model #1;

[0492] Optionally, the report-quantity of #2 is based on the eTypeII codebook for CSI reporting, and the specific eTypeII codebook parameter configuration method reuses existing technology.

[0493] In step S5302, at time 1, the base station activates semi-static CSI reporting #1 via DCI signaling.

[0494] Optionally, the UE then uses AI model #1 to calculate the CSI and report it.

[0495] In step S5303, at time 2, the base station determines that the reporting performance of channel feature vector information based on AI model #1 is poor.

[0496] In step S5304, at time 3, the base station activates semi-static CSI reporting #1 via DCI signaling.

[0497] Optionally, the UE then stops calculating and reporting CSI based on AI model #1.

[0498] In step S5305, at time 4, the base station triggers semi-static CSI reporting #2 via DCI signaling.

[0499] Optionally, the UE then calculates and reports the CSI based on the eTypeII codebook.

[0500] Specific example 5:

[0501] The method of this instance may include the following steps:

[0502] Step S5401: The base station configures semi-static CSI reporting #1 and semi-static CSI reporting #2 via RRC.

[0503] Optionally, the report quantity of #1 is reported based on the channel feature vector information of AI model #1;

[0504] Optionally, the report-quantity of #2 is based on the eTypeII codebook for CSI reporting, and the specific eTypeII codebook parameter configuration method reuses existing technology.

[0505] In step S5402, at time 1, the base station activates semi-static CSI reporting #1 and deactivates semi-static CSI reporting #2 via MAC CE signaling.

[0506] Optionally, the UE then uses AI model #1 to calculate the CSI and report it.

[0507] In step S5403, at time 2, the base station determines that the reporting performance of channel feature vector information based on AI model #1 is poor.

[0508] In step S5404, at time 3, the base station activates semi-static CSI reporting #1 and semi-static CSI reporting #2 via MAC CE signaling.

[0509] Optionally, the UE then calculates and reports the CSI based on the eTypeII codebook.

[0510] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0511] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0512] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0513] Figure 6a This is a schematic diagram of the structure of the terminal 101 proposed in an embodiment of this disclosure. Figure 6a As shown, terminal 6100 may include at least one of a transceiver module 6101, a processing module 6102, etc. In some embodiments, the transceiver module 6101 is configured to receive first information sent by a network device, the first information including configuration information of a first CSI report, and is further configured to receive second information sent by the network device, the second information indicating configuration information of a second CSI report. The processing module 6102 is configured to switch from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

[0514] Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by terminal 101 in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to perform at least one of the other steps performed by terminal 101 in any of the above methods, which will not be elaborated here.

[0515] Figure 6bThis is a schematic diagram of the structure of the network device 102 proposed in an embodiment of this disclosure. Figure 6b As shown, terminal 6200 may include at least one of a transceiver module 6201, a processing module 6202, etc. In some embodiments, the transceiver module 6201 is used to send first information to the terminal, the first information including configuration information of a first CSI report; the transceiver module 6201 is also used to send second information to the terminal, the second information being used to indicate configuration information of a second CSI report, wherein the second information is used for the terminal to switch from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

[0516] Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device 102 in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to perform at least one of the other steps performed by the network device 102 in any of the above methods, which will not be elaborated here.

[0517] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0518] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0519] Figure 7a This is a schematic diagram of the structure of the communication device 7100 proposed in this embodiment. The communication device 7100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 7100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0520] like Figure 7a As shown, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 7100 is used to execute any of the above methods.

[0521] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may also be located outside the communication device 7100.

[0522] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceivers 7103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, but not limited thereto), and the processor 7101 performs at least one of other steps (e.g., steps S2103, S2104, S2105, but not limited thereto).

[0523] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0524] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0525] The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may vary. Figure 7a The limitations. The communication device can be a standalone device or part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally including storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (7) others, etc.

[0526] Figure 7bThis is a schematic diagram of the structure of chip 7200 according to an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, please refer to... Figure 7b The diagram shown is a schematic representation of the structure of chip 7200, but it is not limited to this.

[0527] Chip 7200 includes one or more processors 7201, which are used to perform any of the above methods.

[0528] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to memory 7203, and the interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201.

[0529] In some embodiments, the interface circuit 7202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, but not limited thereto), and the processor 7201 performs at least one of the other steps (e.g., steps S2103, S2104, S2105, but not limited thereto).

[0530] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0531] In some embodiments, chip 7200 further includes one or more memories 7203 for storing instructions. Optionally, all or part of the memories 7203 may be located outside of chip 7200.

[0532] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0533] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0534] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0535] Industrial applicability

[0536] In this disclosed method, the terminal receives first information and second information sent by the network device to learn about the first CSI report and the second CSI report configured by the network device. Thus, at an appropriate time, the terminal can switch from reporting according to the first CSI report to reporting according to the second CSI report, which is beneficial to improving the performance of CSI reporting.

Claims

1. A method for reporting Channel State Information (CSI), the method comprising: The terminal receives first information sent by the network device. The first information includes configuration information of the first CSI report. The first CSI report includes multiple report parameters corresponding to report content identifiers. The terminal receives second information sent by the network device. The second information is used to indicate the configuration information of the second CSI report. The second information is sent by the network device after evaluating the CSI corresponding to the first CSI report and determining that the CSI corresponding to the first CSI report does not meet the evaluation conditions. The second information indicates the report content identifier corresponding to the second CSI report, and the report content identifier corresponding to the second CSI report corresponds to the report content identifier in the first CSI report. The second information reuses the report parameters corresponding to the report content identifier in the first CSI report through the indicated report content identifier. The terminal switches from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

2. The method as described in claim 1, wherein, The first CSI report includes periodic CSI reports based on artificial intelligence (AI).

3. The method as described in claim 2, wherein, The configuration information for the second CSI report includes at least one of the following: Configure the identifier ID; Report parameters; Codebook configuration; Configuring AI / ML models for artificial intelligence or machine learning; Frequency domain parameters.

4. The method of claim 3, wherein, The second information includes the configuration information of the second CSI report.

5. The method of claim 3, wherein, The second information includes at least one information field, which is used to indicate the report content identifier corresponding to the second CSI report.

6. The method of claim 5, wherein, The second information includes a first information field, through which different bit values ​​of the first information field indicate the corresponding report content identifier.

7. The method of claim 5, wherein, Each of the at least one information field is configured with a corresponding report content identifier, wherein the report content identifier corresponding to the information field with a bit value of a first value is activated, and the report content identifier corresponding to the information field with a bit value of a second value is deactivated.

8. The method of claim 1, wherein, The protocol defines the first CSI report as an AI-based, non-periodic or semi-static CSI report.

9. The method according to any one of claims 2 to 8, wherein, The second information is sent via the Media Access Control Unit (MAC CE).

10. The method according to any one of claims 1 to 9, wherein, The effective time of the second information is: the time after the terminal sends the feedback information corresponding to the first channel to the network device within a certain duration; The first channel is used to transmit the second information.

11. The method of claim 1, wherein, The first information includes multiple AI-based, non-periodic first CSI reports.

12. The method of claim 11, wherein, The second information is used to indicate the configuration identifier of the second CSI report, wherein the second CSI report corresponds to one of a plurality of the first CSI reports.

13. The method of claim 11 or 12, wherein, The second information is sent via downlink control information (DCI).

14. The method of claim 1, wherein, The first information includes multiple AI-based semi-static first CSI reports.

15. The method of claim 14, wherein, The second information is used to indicate whether to activate or deactivate the first CSI report, wherein the second CSI report corresponds to the first CSI report that is activated among a plurality of the first CSI reports.

16. The method of claim 14 or 15, wherein, The second information is sent via MAC CE or DCI.

17. A method for receiving channel state information, the method comprising: The network device sends first information to the terminal. The first information includes configuration information of the first CSI report. The first CSI report includes multiple report parameters corresponding to report content identifiers. The network device evaluates the CSI corresponding to the first CSI report; The network device sends second information to the terminal. The second information is sent when the CSI corresponding to the first CSI report does not meet the evaluation conditions. The second information is used to indicate the configuration information of the second CSI report. The second information indicates the report content identifier corresponding to the second CSI report, and the report content identifier corresponding to the second CSI report corresponds to the report content identifier in the first CSI report. The second information reuses the report parameters corresponding to the report content identifier in the first CSI report through the indicated report content identifier. The second information is used for the terminal to switch from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

18. The method of claim 17, wherein, The first CSI report includes periodic CSI reports based on artificial intelligence (AI).

19. The method of claim 18, wherein, The configuration information for the second CSI report includes at least one of the following: Configure the identifier ID; Report parameters; Codebook configuration; AI / ML model configuration; Frequency domain parameters.

20. The method of claim 19, wherein, The second information includes the configuration information of the second CSI report.

21. The method of claim 19, wherein, The second information includes at least one information field, which is used to indicate the report content identifier corresponding to the second CSI report.

22. The method of claim 21, wherein, The second information includes a first information field, and different bit values ​​of the first information field are configured to indicate the corresponding report content identifier.

23. The method of claim 22, wherein, Each of the at least one information field is configured with a corresponding report content identifier, wherein the report content identifier corresponding to the information field with a bit value of a first value is activated, and the report content identifier corresponding to the information field with a bit value of a second value is deactivated.

24. The method of claim 17, wherein, The protocol defines the first CSI report as an AI-based, non-periodic or semi-static CSI report.

25. The method as claimed in any one of claims 18 to 24, wherein, The second information is sent via the Media Access Control Unit (MAC CE).

26. The method as claimed in any one of claims 17 to 25, wherein, The effective time of the second information is: the time after the terminal sends the feedback information corresponding to the first channel to the network device within a certain duration; The first channel is used to transmit the second information.

27. The method of claim 17, wherein, The first information includes multiple AI-based, non-periodic first CSI reports.

28. The method of claim 18, wherein, The second information is used to indicate the configuration identifier of the second CSI report, wherein the second CSI report corresponds to one of a plurality of the first CSI reports.

29. The method of claim 27 or 28, wherein, The second information is sent via downlink control information (DCI).

30. The method of claim 17, wherein, The first information includes multiple AI-based semi-static first CSI reports.

31. The method of claim 30, wherein, The second information is used to indicate whether to activate or deactivate the first CSI report, wherein the second CSI report corresponds to the first CSI report that is activated among a plurality of the first CSI reports.

32. The method of claim 30 or 31, wherein, The second information is sent via MAC CE or DCI.

33. A terminal, comprising: The transceiver module is used to receive first information sent by the network device. The first information includes configuration information of a first CSI report. The first CSI report includes multiple report parameters corresponding to report content identifiers. The report parameters indicate whether the CSI reporting is based on artificial intelligence (AI) or codebook. The transceiver module is further configured to receive second information sent by the network device. The second information is used to indicate the configuration information of the second CSI report. The second information is sent by the network device after evaluating the CSI corresponding to the first CSI report and determining that the CSI corresponding to the first CSI report does not meet the evaluation conditions. The second information indicates the report content identifier corresponding to the second CSI report, and the report content identifier corresponding to the second CSI report corresponds to the report content identifier in the first CSI report. The second information reuses the report parameters corresponding to the report content identifier in the first CSI report through the indicated report content identifier. The processing module is used to switch from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

34. A network device, comprising: The transceiver module is used to send first information to the terminal. The first information includes configuration information of the first CSI report. The first CSI report includes multiple report parameters corresponding to report content identifiers. The processing module is used to evaluate the CSI corresponding to the first CSI report; The transceiver module is further configured to send second information to the terminal. The second information is sent when the CSI corresponding to the first CSI report does not meet the evaluation conditions. The second information is used to indicate the configuration information of the second CSI report. The second information indicates the report content identifier corresponding to the second CSI report, and the report content identifier corresponding to the second CSI report corresponds to the report content identifier in the first CSI report. The second information reuses the report parameters corresponding to the report content identifier in the first CSI report through the indicated report content identifier. The second information is used for the terminal to switch from reporting CSI based on the first CSI report to reporting CSI based on the second CSI report.

35. A terminal, comprising: One or more processors; The terminal is used to execute the method according to any one of claims 1 to 16.

36. A network device, comprising: One or more processors; The terminal is used to execute the method according to any one of claims 17 to 32.

37. A communication system comprising network equipment and a terminal, wherein, The terminal is configured to implement the method of any one of claims 1 to 16, and the network device is configured to implement the method of any one of claims 17 to 32.

38. A storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method as claimed in any one of claims 1 to 16 or any one of claims 17 to 32.

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