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

Abstract

The present disclosure relates to a method for reporting channel status information (CSI), and a terminal, a network device, a system and a medium. The method comprises: a terminal receiving first information sent by a network device, wherein the first information comprises configuration information of a first CSI report; the terminal receiving second information sent by the network device, wherein the second information is used for indicating configuration information of a second CSI report; and the terminal switching from CSI reporting which is performed according to the first CSI report to CSI reporting which is performed according to the second CSI report. In the present disclosure, a terminal receives first information and second information which are sent by a network device, so as to learn of a first CSI report and a second CSI report which are configured by the network device, such that at a suitable occasion, the terminal can switch from reporting which is performed according to the first CSI report to reporting which is performed according to the second CSI report, thereby facilitating an improvement in the performance of CSI reporting.

Description

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

[0001] The present disclosure relates to the field of communication technologies, and in particular to a method, terminal, network device, system, and medium for reporting channel state information. Background Art

[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.

[0003] Summary of the Invention

[0004] In AI-based CSI compression, model performance is poor, which affects CSI reporting.

[0005] The present disclosure provides a method, terminal, network device, system and medium for reporting channel state information.

[0006] In a first aspect, the present disclosure provides a method for reporting CSI, the method comprising:

[0007] The terminal receives first information sent by the network device, where the first information includes configuration information of the first CSI report;

[0008] The terminal receives second information sent by the network device, where the second information is used to indicate configuration information of a second CSI report;

[0009] The terminal switches from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

[0010] In a second aspect, the present disclosure provides a method for receiving CSI, the method comprising:

[0011] The network device sends first information to the terminal, where the first information includes configuration information of the first CSI report;

[0012] The network device sends second information to the terminal, where the second information is used to indicate configuration information of a second CSI report, wherein the second information is used by the terminal to switch from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

[0013] In a third aspect, the present disclosure provides a terminal, including:

[0014] a transceiver module, configured to receive first information sent by a network device, where the first information includes configuration information of a first CSI report;

[0015] The transceiver module is further configured to receive second information sent by the network device, where the second information is used to indicate configuration information of a second CSI report;

[0016] A processing module is configured to switch from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

[0017] In a fourth aspect, the present disclosure provides a network device, including:

[0018] a transceiver module, configured to send first information to a terminal, where the first information includes configuration information of a first CSI report;

[0019] The transceiver module is further configured to send second information to the terminal, where the second information is 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.

[0020] In a fifth aspect, the present disclosure provides a terminal, including:

[0021] one or more processors;

[0022] The terminal is used to execute the method described in the first aspect.

[0023] In a sixth aspect, the present disclosure provides a network device, including:

[0024] one or more processors;

[0025] The terminal is used to execute the method described in the second aspect.

[0026] In a seventh aspect, the present disclosure provides a communication system, comprising 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.

[0027] In an eighth aspect, a storage medium stores instructions, which, when executed on a communication device, causes the communication device to execute the method described in the first aspect or the second aspect.

[0028] In the method disclosed herein, the terminal receives the first information and the second information sent by the network device to obtain the first CSI report and the second CSI report configured by the network device, so that the terminal can switch from reporting according to the first CSI report or fall back to reporting according to the second CSI report at an appropriate time, which is conducive to improving the performance of CSI reporting. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0030] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0031] FIG2a is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0032] FIG2 b is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0033] FIG2c is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0034] FIG3a is an exemplary flowchart of a method provided according to an embodiment of the present disclosure;

[0035] FIG3 b is an exemplary flowchart of a method according to an embodiment of the present disclosure;

[0036] FIG4a is an exemplary flowchart of a method provided according to an embodiment of the present disclosure;

[0037] FIG4 b is an exemplary flowchart of a method according to an embodiment of the present disclosure;

[0038] FIG5a is a schematic diagram showing a structure of signaling according to an embodiment of the present disclosure;

[0039] FIG5b is a schematic diagram showing a structure of signaling according to an embodiment of the present disclosure;

[0040] FIG6a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

[0041] FIG6b is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

[0042] FIG7a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0043] FIG7 b is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] The present disclosure provides a method, terminal, network device, system and medium for reporting channel state information.

[0045] In a first aspect, the present disclosure provides a method for reporting CSI, the method comprising:

[0046] The terminal receives first information sent by the network device, where the first information includes configuration information of the first CSI report;

[0047] The terminal receives second information sent by the network device, where the second information is used to indicate configuration information of the second CSI report;

[0048] The terminal switches from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

[0049] In the above embodiment, the terminal receives the first information and the second information sent by the network device to obtain the first CSI report and the second CSI report configured by the network device, so that the terminal can switch from reporting according to the first CSI report or fall back to reporting according to the second CSI report at an appropriate time, which is conducive to improving the performance of CSI reporting.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the first CSI report includes a periodic CSI report based on artificial intelligence AI.

[0051] In the above embodiment, when the performance of the AI-based periodic CSI reporting is not good, the terminal may switch or fall back to the second CSI reporting to improve the performance of the periodic CSI reporting.

[0052] 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:

[0053] Configuration identification ID;

[0054] Report parameters;

[0055] Codebook configuration;

[0056] Artificial intelligence or machine learning AI / ML model configuration;

[0057] Frequency domain parameters.

[0058] In the above embodiment, the content of the configuration information of the second CSI report may include newly configured parameters or part of the content of the configuration information of the first CSI report, so as to re-report the configuration or use the relevant parameters in the first CSI report to achieve switching or fallback of CSI reporting.

[0059] In combination with some embodiments of the first aspect, in some embodiments, the second information includes configuration information of the second CSI report.

[0060] In the above embodiment, when the performance of AI-based periodic CSI reporting is poor, the terminal can obtain a 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.

[0061] In combination with some embodiments of the first aspect, in some embodiments, the second information includes at least one information field, where the information field is used to indicate a report content identifier corresponding to the second CSI report, and the first CSI report includes multiple report parameters corresponding to the report content identifier.

[0062] In the above embodiment, 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, so that the corresponding report parameters in the first CSI report can be reused, saving signaling resources for the second information, which is also beneficial to terminal implementation.

[0063] In combination 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 a corresponding report content identifier.

[0064] In the above embodiment, 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 the second CSI report indicated by the network device corresponds to based on the bit value of the first information field.

[0065] In combination with some embodiments of the first aspect, in some embodiments, each information domain in at least one information domain is configured with a corresponding report content identifier, wherein the report content identifier corresponding to the information domain with a bit value of the first value is activated, and the report content identifier corresponding to the information domain with a bit value of the second value is deactivated.

[0066] In the above embodiment, the second information can use a bitmap to indicate multiple report content identifiers through multiple information fields, so that the terminal can know that the second CSI report indicated by the network device corresponds to the report parameters in the first CSI report based on the bit value of each information field.

[0067] In combination 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.

[0068] In the above embodiment, in the AI-based periodic CSI reporting method, the switching or fallback delay is large, so the AI-based periodic CSI reporting can be avoided in a protocol-defined manner, and the terminal can perform AI-based non-periodic or semi-static CSI reporting.

[0069] In combination with some embodiments of the first aspect, in some embodiments, the second information is sent through a media access control element MAC CE.

[0070] In the above embodiment, 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 to reduce the delay during CSI switching or fallback.

[0071] 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 first duration of feedback information corresponding to the first channel to the network device;

[0072] The first channel is used to transmit the second information.

[0073] In the above embodiment, after receiving the second information, the terminal may apply the second information at an appropriate time, that is, apply the second CSI report.

[0074] In combination with some embodiments of the first aspect, in some embodiments, the first information includes multiple AI-based non-periodic first CSI reports.

[0075] In the above embodiment, when the performance of AI-based non-periodic CSI reporting is poor, the terminal may switch or fallback the CSI reporting at an appropriate time to improve the performance of the CSI reporting.

[0076] In combination with some embodiments of the first aspect, in some embodiments, the second information is used to indicate a configuration identifier of a second CSI report, where the second CSI report corresponds to one of multiple first CSI reports.

[0077] In the above embodiment, when the performance of AI-based non-periodic CSI reporting is poor, the terminal can fall back according to the configuration of the network device and different CSI report configurations to improve the CSI reporting performance.

[0078] In combination with some embodiments of the first aspect, in some embodiments, the second information is sent via downlink control information DCI.

[0079] In the above embodiment, the terminal may receive the second information sent by the network device via the DCI to dynamically activate the configuration of the corresponding CSI report.

[0080] In combination with some embodiments of the first aspect, in some embodiments, the first information includes multiple AI-based semi-static first CSI reports.

[0081] In the above embodiment, when the performance of AI-based semi-static CSI reporting is not good, the terminal can fall back according to the configuration of the network device and different CSI report configurations to improve the CSI reporting performance.

[0082] In combination with some embodiments of the first aspect, in some embodiments, the second information is used to indicate activation or deactivation of a first CSI report, wherein the second CSI report corresponds to an activated first CSI report among multiple first CSI reports.

[0083] In the above embodiment, the terminal determines the second CSI report according to the second information sent by the network device, so that CSI fallback can be performed in time when the reporting performance is poor.

[0084] In combination with some embodiments of the first aspect, in some embodiments, the second information is sent via MAC CE or DCI.

[0085] In the above embodiment, when the performance of the AI-based semi-static CSI reporting is not good, the terminal may fall back according to the second information sent by the network device through corresponding signaling.

[0086] In a second aspect, the present disclosure provides a method for receiving CSI, the method comprising:

[0087] The network device sends first information to the terminal, where the first information includes configuration information of the first CSI report;

[0088] The network device sends second information to the terminal, where the second information is used to indicate configuration information of the second CSI report, wherein the second information is used by the terminal to switch from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

[0089] In the above embodiment, the network device sends the first information and the 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 from reporting according to the first CSI report or fall back to reporting according to the second CSI report at an appropriate time, which is conducive to improving the performance of CSI reporting.

[0090] In combination with some embodiments of the second aspect, in some embodiments, the first CSI report includes a periodic CSI report based on artificial intelligence AI.

[0091] 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:

[0092] Configuration identification ID;

[0093] Report parameters;

[0094] Codebook configuration;

[0095] AI / ML model configuration;

[0096] Frequency domain parameters.

[0097] In combination with some embodiments of the second aspect, in some embodiments, the second information includes configuration information of the second CSI report.

[0098] In combination with some embodiments of the second aspect, in some embodiments, the second information includes at least one information field, where the information field is used to indicate a report content identifier corresponding to the second CSI report.

[0099] In combination with some embodiments of the second aspect, in some embodiments, the second information includes a first information field, and the corresponding report content identifier is indicated by configuring different bit values ​​of the first information field.

[0100] In combination with some embodiments of the second aspect, in some embodiments, each information domain in at least one information domain is configured with a corresponding report content identifier, wherein the report content identifier corresponding to the information domain whose bit value is the first value is activated, and the report content identifier corresponding to the information domain whose bit value is the second value is deactivated.

[0101] In combination 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.

[0102] In combination with some embodiments of the second aspect, in some embodiments, the second information is sent through a media access control element MAC CE.

[0103] 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 first duration of feedback information corresponding to the first channel to the network device;

[0104] The first channel is used to transmit the second information.

[0105] In combination with some embodiments of the second aspect, in some embodiments, the first information includes multiple AI-based non-periodic first CSI reports.

[0106] In combination with some embodiments of the second aspect, in some embodiments, the second information is used to indicate a configuration identifier of a second CSI report, where the second CSI report corresponds to one of multiple first CSI reports.

[0107] In combination with some embodiments of the second aspect, in some embodiments, the second information is sent via downlink control information DCI.

[0108] In combination with some embodiments of the second aspect, in some embodiments, the first information includes multiple AI-based semi-static first CSI reports.

[0109] In combination with some embodiments of the second aspect, in some embodiments, the second information is used to indicate activation or deactivation of a first CSI report, wherein the second CSI report corresponds to an activated first CSI report among multiple first CSI reports.

[0110] In combination with some embodiments of the second aspect, in some embodiments, the second information is sent via MAC CE or DCI.

[0111] In a third aspect, the present disclosure provides a terminal, including:

[0112] a transceiver module, configured to receive first information sent by a network device, where the first information includes configuration information of a first CSI report;

[0113] The transceiver module is further configured to receive second information sent by the network device, where the second information is used to indicate configuration information of a second CSI report;

[0114] The processing module is configured to switch from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

[0115] In a fourth aspect, the present disclosure provides a network device, including:

[0116] a transceiver module, configured to send first information to a terminal, where the first information includes configuration information of a first CSI report;

[0117] The transceiver module is further configured to send second information to the terminal, where the second information is used to indicate configuration information of the 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.

[0118] In a fifth aspect, the present disclosure provides a terminal, including:

[0119] one or more processors;

[0120] The terminal is used to execute the method described in the first aspect.

[0121] In a sixth aspect, the present disclosure provides a network device, including:

[0122] one or more processors;

[0123] The terminal is used to execute the method described in the second aspect.

[0124] In a seventh aspect, the present disclosure provides a communication system, comprising 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.

[0125] In an eighth aspect, a storage medium stores instructions, which, when executed on a communication device, causes the communication device to execute the method described in the first aspect or the second aspect.

[0126] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0127] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0128] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0129] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0130] The present disclosure provides a method, terminal, network device, system and medium for reporting channel state information.

[0131] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain 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 certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0132] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0133] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0134] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0135] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0136] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0137] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0138] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0139] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0140] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0141] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0142] In some embodiments, terms such as "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 less than", and "above" can be replaced with each other, and terms such as "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" can be replaced with each other.

[0143] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0144] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0145] 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", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0146] 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.

[0147] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0148] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0149] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0150] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0151] As shown in FIG. 1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0152] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0153] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0154] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0155] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0156] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0157] In some embodiments, a core network device may be a single device comprising one or more network elements, or may be multiple devices or device groups, each comprising all or part of one or more network elements. A network element 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).

[0158] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0159] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG. 1 , or a part of the main body thereof, but are not limited thereto.

[0160] The entities shown in Figure 1 are examples. The communication system may include all or part of the entities in Figure 1, and may also include other entities outside of Figure 1. The number and form of the entities are arbitrary. The connection relationship between the entities is an example. The entities may be connected or disconnected, and the connection may be in any manner, which may be direct or indirect, and may be wired or wireless.

[0161] The embodiments of the present disclosure 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), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (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 utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0162] In the embodiments of the present disclosure, AI-based and non-AI-based CSI reporting generally include three reporting modes: periodic, semi-persistent, and aperiodic. The main difference between AI-based and non-AI-based CSI reporting is whether the CSI obtained by the terminal 101 based on the measurement results is obtained based on an AI compression scheme or a codebook approach.

[0163] In the disclosed embodiment, for different types of CSI reporting, when the reporting performance is poor, if different types of CSI reporting all adopt a unified switching or unified fallback method, the frequency domain characteristics and reporting resources used by different types of CSI reporting are different, and the unified fallback method is difficult to implement and is not flexible enough.

[0164] In an embodiment of the present disclosure, a method for separately rolling back different types of CSI reporting is provided.

[0165] It is worth noting that in the fallback of periodic CSI reporting, the network device 102 needs to first release the previous reporting configuration information and then reconfigure the new reporting configuration through the Radio Resource Control (RRC), which results in a relatively large delay.

[0166] FIG2a is an interactive diagram illustrating a method for reporting channel state information according to an embodiment of the present disclosure. As shown in FIG2a, an embodiment of the present disclosure relates to a method for reporting channel state information, the method comprising:

[0167] Step S2101 , the network device 102 sends first information to the terminal 101 .

[0168] In some embodiments, the first information includes configuration information of a first CSI report (CSI report), and the configuration information of the first CSI report may also be referred to as configuration of the first CSI report, first CSI report configuration, or first CSI reporting configuration.

[0169] Optionally, the first CSI report is used to represent a CSI report initially configured by the network device 102 or configured before CSI fallback is involved.

[0170] In some embodiments, the network device 102 may configure the first CSI report via RRC, for example, the network device 102 sends an RRC message, where the RRC message includes the first information.

[0171] Optionally, the CSIMeasConfig of the RRC message includes: a CSI measurement resource configuration (csi-ResourceConfig) and a CSI report configuration (csi-ReportConfig). The CSI measurement resource configuration is used by the terminal 101 to perform CSI measurement, and the CSI report configuration is used by the terminal 101 to report CSI. For example, the first CSI report is used by the terminal 101 to report CSI according to the first CSI report.

[0172] In an 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, CSI resources such as CSI-RS resources can be periodic, aperiodic, or semi-static.

[0173] In another optional example, the CSI report configuration includes: a CSI report configuration identifier (csi-ReportConfigId) and a CSI report configuration type (ReportConfigType), etc. In this example, the CSI report configuration type includes: periodic, aperiodic or semi-static, that is, the CSI report can be periodic, aperiodic or semi-static.

[0174] Optionally, the CSI measurement resource configuration identifier is associated or corresponds to the CSI report configuration identifier, that is, the CSI measurement resource configuration is associated or corresponds to the CSI report configuration. For example, the first CSI report has a corresponding or associated first CSI measurement resource configuration.

[0175] In some embodiments, the first information may include only the first CSI report, or may include the first CSI report and the first CSI measurement resource configuration.

[0176] In some embodiments, the first CSI report configuration includes one or more of the following: a configuration identifier ID, a report quantity, a codebook configuration, an artificial intelligence or machine learning AI / ML model configuration, and a frequency domain parameter.

[0177] Optionally, the reporting parameter may indicate whether the CSI reporting corresponding to the first CSI report is AI-based or codebook-based. The reporting parameter may be indicated by the report content (Report content) in the CSI report configuration. The report content may include multiple sets of report parameter configurations, distinguished by different report content IDs (CSI-Report content IDs).

[0178] In one example, the configuration identifier of the first CSI report configuration is csi-ReportConfigId=1, and the first CSI report configuration includes two sets of report contents, and the report content identifiers are csi-Report content Id=0 and csi-Report content Id=1. Among them, the report parameter in the report content of csi-Report content Id=0 indicates that CSI reporting is based on the codebook, and the report parameter in the report content of csi-Report content Id=1 indicates that CSI reporting is based on AI. For specific application examples, please refer to the specific embodiments listed in the following embodiments, which will not be repeated here.

[0179] In the embodiments of the present disclosure, an example is provided in which the first CSI report includes an AI-based periodic CSI report. For example, both the codebook-based CSI reporting and the AI-based CSI reporting in the first CSI report are periodic. It is understood that the CSI-RS resources are also periodic in this case.

[0180] Optionally, for codebook-based reporting, the first CSI report configuration includes at least: reporting parameters, codebook configuration, and frequency domain parameters. The codebook configuration includes codebook type, codebook restriction, etc. The frequency domain parameters include applicable wideband or subband.

[0181] Optionally, for AI-based reporting, the first CSI report configuration includes at least: reporting parameters, AI / ML model configuration, and frequency domain parameters. The AI / ML model configuration includes a feedback payload, an AI / ML model ID, an AI / ML function ID, etc.

[0182] In some embodiments, the CSI measurement resource configuration, such as the first CSI measurement resource configuration, and the CSI report configuration, such as the first CSI report configuration, sent via RRC take effect immediately after configuration.

[0183] In some embodiments, the terminal 101 receives the first information and obtains CSI measurement and reporting-related configurations based on the first information.

[0184] Step S2102 : The network device 102 sends a CSI-RS to the terminal 101 .

[0185] In some embodiments, the network device 102 may periodically transmit the CSI-RS.

[0186] In some embodiments, the terminal 101 receives the CSI-RS sent by the network device 102 according to the first information or the CSI-RS resource configuration, and obtains a measurement result.

[0187] Step S2103: Terminal 101 reports CSI according to the first CSI report.

[0188] In some embodiments, the terminal 101 reports CSI according to the first CSI report.

[0189] Optionally, the first CSI report is a periodic CSI report based on AI. The terminal 101 can compress the measurement result based on AI to obtain CSI and send the CSI to the network device 102.

[0190] In some embodiments, the network device 102 receives the CSI corresponding to the first CSI report.

[0191] In step S2104 , the network device 102 evaluates the CSI corresponding to the first CSI report.

[0192] In some embodiments, the network device 102 may evaluate the CSI reported by the terminal 101 according to relevant evaluation conditions.

[0193] For example, the network device 102 determines that the AI-based CSI performance is poor based on relevant reference data, and can instruct the terminal 101 to fall back or switch CSI reporting, such as executing step S2105.

[0194] Step S2105 , the network device 102 sends second information to the terminal 101 .

[0195] In some embodiments, the second information is used to indicate configuration information of the second CSI report. The configuration information of the second CSI report may also be referred to as configuration of the second CSI report, second CSI report configuration, or second CSI reporting configuration.

[0196] In some embodiments, the network device 102 may send the second information via a Media Access Control Control Element (MAC CE) to override the reporting configuration in the first information.

[0197] In some embodiments, the configuration information of the second CSI report includes at least one of the following:

[0198] Configuration identification ID;

[0199] Report parameters;

[0200] Codebook configuration;

[0201] AI / ML model configuration;

[0202] Frequency domain parameters.

[0203] Optionally, the configuration information of the second CSI report includes multiple items of configuration identifier, report parameters, codebook configuration, AI / ML model configuration and frequency domain parameters.

[0204] Optionally, the configuration identifier may be a periodic configuration identifier (periodic CSI report configuration ID).

[0205] Optionally, the configuration of the second CSI report may refer to the configuration of the first CSI report, and the second information indicates that the configuration information of the second CSI report may be provided directly or indirectly.

[0206] In some embodiments, the second information may indicate the second CSI report configuration in the following manner: the second information includes configuration information of the second CSI report.

[0207] 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 including a configuration identifier, report parameters, codebook configuration, and frequency domain parameters, etc., wherein one or more items of information between the two may differ.

[0208] Alternatively, in this embodiment, the information in the second CSI reporting configuration is less than that in the first CSI reporting configuration, or the second CSI reporting configuration is a portion of the first CSI reporting configuration. The second CSI reporting configuration may only include information that needs to be updated. For example, the second CSI reporting configuration only includes new reporting parameter configurations, while other reporting configurations still reuse the first CSI reporting configuration.

[0209] Optionally, the second CSI reporting configuration is still associated with or corresponds to the first CSI measurement resource configuration.

[0210] For specific application examples, please refer to the specific embodiments listed in the following embodiments, which will not be repeated here.

[0211] In some embodiments, the second information may indicate the second CSI reporting configuration in such a manner that the second information indicates a report content ID to associate with a certain reporting parameter in the first CSI reporting configuration.

[0212] For example, the second information includes at least one information field, where the information field is used to indicate a report content identifier corresponding to the second CSI report. The first CSI report includes report parameters corresponding to multiple report content identifiers.

[0213] The report content identifier indicated by the second information corresponds to the report content identifier in the first CSI report. That is, the second information reuses a set of reporting parameters in the first CSI report by indicating the report content identifier. This approach can save signaling resources for the second information and is more convenient for implementation in terminal 101.

[0214] In one example, the second information includes a first information field, and different bit values ​​of the first information field indicate corresponding report content identifiers.

[0215] In this example, the first information field may include one or more bits. For example, taking the example of the first information field including one bit, when the value of the one bit is 0, it corresponds to report content identifier 0; when the value of the one bit is 1, it corresponds to report content identifier 1. Thus, terminal 101 can know which set of reporting parameters in the first CSI report the second CSI report corresponds to.

[0216] 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 first bit value is activated, and the report content identifier corresponding to the information field with a second bit value is deactivated.

[0217] In this example, each information field may include one bit, the first value may be 1, and the second value may be 0. The report content identifier is indicated in a bitmap manner. For example, if the value of the 3 information fields corresponds to 001, it means that the report content of the report content identifier 0 corresponding to the first bit is deactivated, the report content of the report content identifier 1 corresponding to the second bit is deactivated, and the report content of the report content identifier 2 corresponding to the third bit is activated.

[0218] 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.

[0219] In some embodiments, the second information further includes: a serving cell ID (serving cell ID) and a bandwidth part ID (BWP ID) corresponding to the terminal 101 .

[0220] In some embodiments, terminal 101 receives the second information.

[0221] In step S2106 , the terminal 101 switches to reporting CSI according to the second CSI report.

[0222] In other words, the terminal 101 falls back to reporting the CSI according to the second CSI report.

[0223] 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 perform CSI reporting at the effective time.

[0224] 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 for the first duration; wherein the first channel is used to transmit the second information.

[0225] The first channel is a PDSCH, which can be used to transmit a MAC CE carrying the second information. The feedback information is, for example, Hybrid Automatic Repeat request Acknowledgement (HARQ-ACK) feedback information, indicating that the PDSCH is successfully received.

[0226] For example, the second information takes effect X time units after the terminal feeds back the HARQ-ACK of the PDSCH containing the MAC CE, where X>0. The time domain unit may be a time slot, a symbol, or a millisecond, etc. In some embodiments, taking the second CSI report corresponding to a certain reporting parameter in the first CSI report as an example, the reporting parameter definition corresponding to the second CSI report is based on the codebook for CSI reporting. Thus, the terminal 101 can fall back from the AI-based periodic CSI reporting to the codebook-based periodic CSI reporting according to the instruction of the network device 102 to improve the reporting performance.

[0227] In some embodiments, the network device 102 receives the CSI corresponding to the second CSI report.

[0228] In some embodiments, the network device 102 may also evaluate the CSI corresponding to the second CSI report. If poor performance still exists, the network device 102 may send new second information to indicate a new second CSI report so that the terminal 101 can perform CSI again according to the new second CSI report until the reported CSI meets the evaluation conditions.

[0229] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0230] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" may be used interchangeably. For example, a codebook may be a collection of one or more codewords / precoding matrices.

[0231] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0232] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0233] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, and terms such as "physical uplink shared channel (PUSCH)" and "UL data" can be used interchangeably.

[0234] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0235] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0236] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0237] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0238] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0239] 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 recipient to respond to the content sent.

[0240] The communication method according to the embodiments of the present disclosure may include at least one of steps S2101 to S2106. For example, step S2101 may be implemented as an independent embodiment, steps S2101 to S2103 may be implemented as an independent embodiment, and steps S2101 and S2105 to S2106 may be implemented as independent embodiments, but are not limited thereto.

[0241] In some embodiments, the first CSI report is defined by the protocol as an AI-based non-periodic or semi-static CSI report. In this case, the method may include step S2101, or include steps S2101 to S2103. That is, in this embodiment, the first CSI report is avoided from being configured as an AI-based periodic CSI report, and AI-based periodic CSI reporting is not performed, thereby avoiding a more complex periodic CSI reporting fallback. At this time, if fallback is still required, refer to the method of Figure 2b when the first CSI report is an AI-based non-periodic CSI report, and refer to the method of Figure 2c when the first CSI report is an AI-based semi-static CSI report.

[0242] In some embodiments, steps S2102, S2103, and S2104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0243] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 a .

[0244] In the embodiment of the present disclosure, the terminal 101 may fall back from AI-based periodic CSI reporting to codebook-based periodic CSI reporting to improve reporting performance.

[0245] FIG2b is an interactive diagram illustrating a method for reporting channel state information according to an embodiment of the present disclosure. As shown in FIG2b , an embodiment of the present disclosure relates to a method for reporting channel state information, the method comprising:

[0246] Step S2201: The network device 102 sends first information to the terminal 101.

[0247] In some embodiments, the implementation of step S2201 can refer to the relevant implementation of step S2101 and will not be repeated here.

[0248] In some embodiments, the first information includes a plurality of AI-based aperiodic first CSI reports.

[0249] For example, the first information includes: an AI-based aperiodic first CSI report with configuration identifier #1, and an AI-based aperiodic first CSI report with configuration identifier #2.

[0250] In one example, the first information further includes one or more codebook-based aperiodic first CSI reports. For example, the first information includes multiple aperiodic first CSI reports, where the multiple aperiodic first CSI reports include both AI-based aperiodic first CSI reports and codebook-based aperiodic first CSI reports.

[0251] Step S2202 : The network device 102 sends a CSI-RS to the terminal 101 .

[0252] In some embodiments, the network device 102 sends an aperiodic CSI-RS to the terminal 101 .

[0253] Step S2203: Terminal 101 reports CSI according to the first CSI report.

[0254] In some embodiments, the implementation of step S2203 can refer to the relevant implementation of step S2103 and will not be repeated here.

[0255] Optionally, the configuration identifier of the first CSI report configuration in step S2203 may be recorded as first CSI report configuration #1, which may be an AI-based non-periodic CSI report.

[0256] In step S2204 , the network device 102 evaluates the CSI corresponding to the first CSI report.

[0257] In some embodiments, the implementation of step S2204 can refer to the relevant implementation of step S2104 and will not be repeated here.

[0258] Step S2205 , the network device 102 sends second information to the terminal 101 .

[0259] In some embodiments, the second information is used to indicate a configuration identifier of a second CSI report, where the second CSI report corresponds to one of the multiple first CSI reports.

[0260] 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 therein, which is different from the first CSI report configuration #1 in step S2203, and may be an AI-based non-periodic first CSI report or a codebook-based non-periodic first CSI report.

[0261] In some embodiments, the second information is sent via DCI.

[0262] Optionally, after sending the DCI, the network device 102 may trigger the sending of the first CSI report configuration #2 and the corresponding CSI-RS.

[0263] In step S2206 , the terminal 101 switches to reporting CSI according to the second CSI report.

[0264] In some embodiments, the implementation of step S2206 can refer to the relevant implementation of step S2106 and will not be repeated here.

[0265] The communication method according to the embodiments of the present disclosure may include at least one of steps S2201 to S2206. For example, step S2201 may be implemented as an independent embodiment, steps S2201 to S2203 may be implemented as an independent embodiment, and steps S2201 and S2205 to S2206 may be implemented as independent embodiments, but are not limited thereto.

[0266] In some embodiments, steps S2202, S2203, and S2204 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0267] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 b .

[0268] In the embodiment of the present disclosure, the terminal 101 can fall back to the aperiodic CSI reporting based on codebook or fall back to the aperiodic CSI reporting based on other AIs to improve reporting performance.

[0269] FIG2c is an interactive diagram illustrating a method for reporting channel state information according to an embodiment of the present disclosure. As shown in FIG2c, an embodiment of the present disclosure relates to a method for reporting channel state information, the method comprising:

[0270] Step S2301: The network device 102 sends first information to the terminal 101.

[0271] In some embodiments, the implementation of step S2301 can refer to the relevant implementation of step S2101 and will not be repeated here.

[0272] In some embodiments, the first information includes a plurality of AI-based semi-static first CSI reports.

[0273] In an example, the first information further includes one or more codebook-based semi-static first CSI reports.

[0274] Step S2302 : The network device 102 sends a CSI-RS to the terminal 101 .

[0275] In some embodiments, the network device 102 sends a semi-static CSI-RS to the terminal 101 .

[0276] Step S2303: Terminal 101 reports CSI according to the first CSI report.

[0277] In some embodiments, the implementation of step S2303 can refer to the relevant implementation of step S2103 and will not be repeated here.

[0278] Optionally, the configuration identifier of the first CSI report configuration in step S2303 may be recorded as first CSI report configuration #1, which may be an AI-based semi-static CSI report.

[0279] In step S2304 , the network device 102 evaluates the CSI corresponding to the first CSI report.

[0280] In some embodiments, the implementation of step S2304 can refer to the relevant implementation of step S2104 and will not be repeated here.

[0281] Step S2305 , the network device 102 sends second information to the terminal 101 .

[0282] In some embodiments, the second information is used to indicate activation or deactivation of a first CSI report, wherein the second CSI report corresponds to an activated first CSI report among the multiple first CSI reports.

[0283] Optionally, the second CSI report may be the first CSI report configuration #2 among the multiple first CSI reports included in the second information, and the first CSI report configuration #2 is different from the first CSI report configuration #1 in step S2303, and may be a semi-static first CSI report based on AI, or a semi-static first CSI report based on a codebook.

[0284] In some embodiments, the second information is sent via MAC CE or DCI.

[0285] Optionally, in the semi-static CSI reporting on the Physical Uplink Control Channel (PUCCH), the network device 102 may activate or deactivate the first CSI report via a MAC CE. For example, the MAC CE activates or deactivates the first CSI report corresponding to the relevant configuration identifier.

[0286] Optionally, in the semi-static CSI reporting on the physical uplink shared channel (PUSCH), the network device 102 may activate or deactivate the first CSI report via DCI. For example, the DCI activates or deactivates the first CSI report corresponding to the relevant configuration identifier.

[0287] In step S2306 , the terminal 101 switches to reporting CSI according to the second CSI report.

[0288] In some embodiments, the implementation of step S2306 can refer to the relevant implementation of step S2106 and will not be repeated here.

[0289] The communication method according to the embodiments of the present disclosure may include at least one of steps S2301 to S2306. For example, step S2301 may be implemented as an independent embodiment, steps S2301 to S2303 may be implemented as an independent embodiment, and steps S2301 and S2305 to S2306 may be implemented as independent embodiments, but are not limited thereto.

[0290] In some embodiments, steps S2302, S2303, and S2304 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0291] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2c.

[0292] In the embodiment of the present disclosure, the terminal 101 can fall back from the AI-based semi-static CSI reporting to the codebook-based semi-static CSI reporting or fall back to the semi-static CSI reporting based on other AIs to improve the reporting performance.

[0293] In the fallback method based on different CSI reporting types in the embodiment of the present disclosure, it is possible to switch from AI-based CSI feedback to non-AI-based CSI feedback, and it is also possible to switch from AI#1-based CSI feedback to AI#2-based CSI feedback.

[0294] FIG3a is a flow chart of a method for reporting channel state information according to an embodiment of the present disclosure. As shown in FIG3a, the embodiment of the present disclosure relates to a method for reporting channel state information, which is executed by terminal 101 and includes:

[0295] Step S3101: Terminal 101 obtains first information.

[0296] In some embodiments, the implementation of step S3101 can refer to the relevant implementations of steps S2101, S2201 and S2301, and will not be repeated here.

[0297] In some embodiments, the terminal 101 may receive the first information from the network device 102, or receive or obtain the first information from other entities.

[0298] In step S3102, the terminal 101 obtains the CSI-RS.

[0299] In some embodiments, the implementation of step S3102 can refer to the relevant implementations of steps S2102, S2202 and S2302, and will not be repeated here.

[0300] Step S3103: Terminal 101 reports CSI according to the first CSI report.

[0301] In some embodiments, the implementation of step S3103 can refer to the relevant implementations of steps S2103, S2203 and S2303, and will not be repeated here.

[0302] In some embodiments, the terminal 101 may report the CSI to the network device 102 or report the CSI to other entities.

[0303] Step S3104: Terminal 101 obtains second information.

[0304] In some embodiments, the implementation of step S3104 can refer to the relevant implementations of steps S2105, S2205 and S2305, and will not be repeated here.

[0305] In some embodiments, the terminal 101 may receive the second information from the network device 102, or receive or obtain the second information from other entities.

[0306] In step S3105 , the terminal 101 switches to reporting CSI according to the second CSI report.

[0307] In some embodiments, the implementation of step S3105 can refer to the relevant implementations of steps S2106, S2206 and S2306, and will not be repeated here.

[0308] The communication method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3105.

[0309] In some embodiments, reference may be made to other optional implementations recorded before or after the description corresponding to FIG. 3 a , such as the embodiments corresponding to FIG. 2 a to FIG. 2 c .

[0310] FIG3b is a flow chart of a method for reporting channel state information according to an embodiment of the present disclosure. As shown in FIG3b, the embodiment of the present disclosure relates to a method for reporting channel state information, which is executed by terminal 101 and includes:

[0311] Step S3201: Terminal 101 receives first information sent by network device 102.

[0312] In some embodiments, the implementation of step S3201 can refer to the relevant implementations of steps S2101, S2201, S2301 and S3101, and will not be repeated here.

[0313] In some embodiments, the first information includes configuration information of the first CSI report.

[0314] In a first example, the first CSI report includes a periodic CSI report based on artificial intelligence AI.

[0315] In this example, the configuration information of the second CSI report includes at least one of the following:

[0316] Configuration identification ID;

[0317] Report parameters;

[0318] Codebook configuration;

[0319] Artificial intelligence or machine learning AI / ML model configuration;

[0320] Frequency domain parameters.

[0321] Optionally, the configuration information of the second CSI report includes multiple items of configuration identifier, report parameters, codebook configuration, AI / ML model configuration and frequency domain parameters.

[0322] In this example, reference may be made to the relevant implementation of FIG2 a , which will not be described in detail here.

[0323] In the second example, the first CSI report may also be defined as an AI-based aperiodic or semi-static CSI report through a protocol. In this example, reference may be made to the relevant implementation of FIG2a , which will not be described in detail here.

[0324] In a third example, the first information includes a plurality of AI-based aperiodic first CSI reports.

[0325] In this example, please refer to the relevant implementation of Figure 2b, which will not be described again here.

[0326] In a fourth example, the first information includes a plurality of AI-based semi-static first CSI reports.

[0327] In this example, please refer to the relevant implementation of Figure 2c, which will not be described again here.

[0328] Step S3202 , the terminal 101 receives the second information sent by the network device 102 .

[0329] In some embodiments, the implementation of step S3202 can refer to the relevant implementations of steps S2105, S2205, S2305 and S3104, which will not be repeated here.

[0330] In some embodiments, the second information is used to indicate configuration information of the second CSI report.

[0331] In combination with the above first example, the second information includes configuration information of the second CSI report.

[0332] In this example, the second information includes at least one information field, where the information field is used to indicate a report content identifier corresponding to the second CSI report.

[0333] For example, the second information includes a first information field, and different bit values ​​of the first information field indicate corresponding report content identifiers.

[0334] For 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 first bit value is activated, and the report content identifier corresponding to the information field with a second bit value is deactivated.

[0335] In this example, the second information is sent via MAC CE.

[0336] 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 for the first duration; wherein the first channel is used to transmit the second information.

[0337] In this example, reference may be made to the relevant implementation of FIG2 a , which will not be described in detail here.

[0338] In combination with the third example above, the second information is used to indicate a configuration identifier of a second CSI report, where the second CSI report corresponds to one of the multiple first CSI reports.

[0339] In this example, the second information is sent through downlink control information DCI.

[0340] In this example, please refer to the relevant implementation of Figure 2b, which will not be described again here.

[0341] In combination with the fourth example above, the second information is used to indicate activation or deactivation of the first CSI report, wherein the second CSI report corresponds to the activated first CSI report among multiple first CSI reports.

[0342] In this example, the second information is sent via MAC CE or DCI.

[0343] In this example, please refer to the relevant implementation of Figure 2c, which will not be described again here.

[0344] In step S3203 , the terminal 101 switches from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

[0345] In some embodiments, the implementation of step S3203 can refer to the relevant implementations of steps S2106, S2206, S2306 and S3105, which will not be repeated here.

[0346] In the embodiment of the present disclosure, the terminal 101 receives the first information and the second information sent by the network device 102 to obtain the first CSI report and the second CSI report configured by the network device, so that at an appropriate time the terminal can switch from reporting according to the first CSI report or fall back to reporting according to the second CSI report, which is conducive to improving the performance of CSI reporting.

[0347] FIG4a is a flow chart of a method for reporting channel state information according to an embodiment of the present disclosure. As shown in FIG4a, the embodiment of the present disclosure relates to a method for reporting channel state information, which is executed by the network device 102 and includes:

[0348] Step S4101: The network device 102 sends first information.

[0349] In some embodiments, the implementation of step S4101 can refer to the relevant implementations of steps S2101, S2201 and S2301, and will not be repeated here.

[0350] In some embodiments, the network device 102 may send the first information to the terminal 101 or send the first information to other entities.

[0351] In step S4102, the network device 102 sends a CSI-RS.

[0352] In some embodiments, the implementation of step S4102 can refer to the relevant implementations of steps S2102, S2202 and S2302, and will not be repeated here.

[0353] In some embodiments, the network device 102 may send a CSI-RS to the terminal 101 or send a CSI-RS to other entities.

[0354] In step S4103, the network device 102 obtains CSI.

[0355] In some embodiments, the implementation of step S4103 can refer to the relevant implementations of steps S2103, S2203 and S2303, and will not be repeated here.

[0356] In some embodiments, the network device 102 may receive CSI from the terminal 101 , or receive or obtain CSI from other entities.

[0357] In step S4104 , the network device 102 evaluates the CSI corresponding to the first CSI report.

[0358] In some embodiments, the implementation of step S4104 can refer to the relevant implementations of steps S2104, S2204 and S2304, and will not be repeated here.

[0359] Step S4105: The network device 102 sends the second information.

[0360] In some embodiments, the implementation of step S4105 can refer to the relevant implementations of steps S2105, S2205 and S2305, and will not be repeated here.

[0361] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4101 to S4105.

[0362] In some embodiments, reference may be made to other optional implementations recorded before or after the description corresponding to FIG. 4 a , such as the embodiments corresponding to FIG. 2 a to FIG. 2 c .

[0363] FIG4a is a flow chart of a method for reporting channel state information according to an embodiment of the present disclosure. As shown in FIG4a, the embodiment of the present disclosure relates to a method for reporting channel state information, which is executed by the network device 102 and includes:

[0364] Step S4201: The network device 102 sends first information to the terminal 101.

[0365] In some embodiments, the implementation of step S4201 can refer to the relevant implementations of steps S2101, S2201, S2301 and S4101, and will not be repeated here.

[0366] In some embodiments, the first information includes configuration information of the first CSI report.

[0367] In a first example, the first CSI report includes a periodic CSI report based on artificial intelligence AI.

[0368] In this example, the configuration information of the second CSI report includes at least one of the following:

[0369] Configuration identification ID;

[0370] Report parameters;

[0371] Codebook configuration;

[0372] Artificial intelligence or machine learning AI / ML model configuration;

[0373] Frequency domain parameters.

[0374] Optionally, the configuration information of the second CSI report includes multiple items of configuration identifier, report parameters, codebook configuration, AI / ML model configuration and frequency domain parameters.

[0375] In this example, reference may be made to the relevant implementation of FIG2 a , which will not be described in detail here.

[0376] In the second example, the first CSI report may also be defined as an AI-based aperiodic or semi-static CSI report through a protocol. In this example, reference may be made to the relevant implementation of FIG2a , which will not be described in detail here.

[0377] In a third example, the first information includes a plurality of AI-based aperiodic first CSI reports.

[0378] In this example, please refer to the relevant implementation of Figure 2b, which will not be described again here.

[0379] In a fourth example, the first information includes a plurality of AI-based semi-static first CSI reports.

[0380] In this example, please refer to the relevant implementation of Figure 2c, which will not be described again here.

[0381] Step S4202 , the network device 102 sends second information to the terminal 101 .

[0382] In some embodiments, the second information is used to indicate configuration information of the second CSI report.

[0383] In some embodiments, 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.

[0384] In combination with the above first example, the second information includes configuration information of the second CSI report.

[0385] In this example, the second information includes at least one information field, where the information field is used to indicate a report content identifier corresponding to the second CSI report.

[0386] For example, the second information includes a first information field, and different bit values ​​of the first information field indicate corresponding report content identifiers.

[0387] For 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 first bit value is activated, and the report content identifier corresponding to the information field with a second bit value is deactivated.

[0388] In this example, the second information is sent via MAC CE.

[0389] 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 for the first duration; wherein the first channel is used to transmit the second information.

[0390] In this example, reference may be made to the relevant implementation of FIG2 a , which will not be described in detail here.

[0391] In combination with the third example above, the second information is used to indicate a configuration identifier of a second CSI report, where the second CSI report corresponds to one of the multiple first CSI reports.

[0392] In this example, the second information is sent through downlink control information DCI.

[0393] In this example, please refer to the relevant implementation of Figure 2b, which will not be described again here.

[0394] In combination with the fourth example above, the second information is used to indicate activation or deactivation of the first CSI report, wherein the second CSI report corresponds to the activated first CSI report among multiple first CSI reports.

[0395] In this example, the second information is sent via MAC CE or DCI.

[0396] In this example, please refer to the relevant implementation of Figure 2c, which will not be described again here.

[0397] In the embodiment of the present disclosure, the network device 102 sends the first information and the second information to the terminal 101 to configure or indicate the first CSI report and the second CSI report to the terminal, so that the terminal can switch from reporting according to the first CSI report or fall back to reporting according to the second CSI report at an appropriate time, which is conducive to improving the performance of CSI reporting.

[0398] To facilitate understanding of the embodiments of the present disclosure, some specific implementation methods are listed below.

[0399] Example 1:

[0400] The present disclosure provides a fallback method for different types of CSI reporting.

[0401] (1) For periodic CSI reporting, override RRC configuration is performed through MAC CE.

[0402] Optionally, the RRC configuration may correspond to the first information of the above embodiment.

[0403] Optionally, the information of the MAC CE may correspond to the second information in the above embodiment.

[0404] Alternatively, reference may be made to FIG. 2 a for an embodiment.

[0405] (2) For aperiodic CSI reporting, multiple aperiodic CSI reporting configurations are configured through RRC, and the DCI triggers the corresponding configuration ID.

[0406] Optionally, the aperiodic CSI reporting configuration may correspond to the aperiodic first CSI reporting configuration of the above embodiment.

[0407] Optionally, the configuration ID triggered by the DCI may correspond to the second CSI reporting configuration of the above embodiment.

[0408] (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.

[0409] Optionally, the semi-static CSI reporting configuration may correspond to the semi-static first CSI reporting configuration of the above embodiment.

[0410] Optionally, the configuration ID activated by the MAC CE may correspond to the second CSI reporting configuration of the above embodiment.

[0411] (4) For semi-static reporting on PUSCH, multiple semi-static CSI reporting configurations are configured through RRC, and DCI activates and deactivates the corresponding configuration IDs.

[0412] Example 2:

[0413] For example 1 (1) of periodic CSI reporting, the MAC CE overrides the RRC configuration, which means that the reporting configuration indicated in the MAC CE can override the configuration in the RRC. The configuration that can be overridden includes at least:

[0414] Codebook-based reporting includes at least: report quantity, codebook configuration, wideband or subband. Codebook configuration includes codebook type, codebook restriction, etc.

[0415] For AI-based reporting, it must include at least: reporting parameters, AI model configuration, broadband or subband. The AI ​​model configuration includes feedback payload, etc.

[0416] Optionally, the configuration that can be overridden corresponds to the configuration information of the second CSI report in the aforementioned embodiment.

[0417] Example 3:

[0418] For example 1 (1) periodic CSI reporting, there are multiple ways to design the MAC CE.

[0419] For example, the MAC CE may directly include specific configuration information or indicate a configuration ID.

[0420] When a MAC CE includes a configuration ID, the MAC CE includes one or more of the following:

[0421] ① Serving cell ID,

[0422] ②BWP ID,

[0423] ③ Periodic CSI report configuration ID,

[0424] ④Si, i corresponds to different report content IDs. For example, in this example, i can correspond to the PMI configuration ID, Si=1 indicates activation of the configuration, and Si=0 indicates deactivation of the configuration; optionally, at this time, Si corresponds to at least one information field of the above embodiment.

[0425] Alternatively, Si represents the ID used, and in this case, Si corresponds to the first information field in the above embodiment.

[0426] When a MAC CE includes specific configuration information, the MAC CE includes one or more of the following:

[0427] ① Service cell ID,

[0428] ②BWP ID,

[0429] ③ Periodic CSI report configuration identifier,

[0430] ④Report quantity

[0431] ⑤ Codebook configuration, such as codebook type, codebook payload size, etc.

[0432] ⑥Frequency domain feature,

[0433] ⑥ Codebook restriction or report restriction.

[0434] Example 4:

[0435] The above-mentioned fallback method 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.

[0436] Example 5:

[0437] Considering that the resources used for periodic CSI reporting are small and the fallback solution is relatively complex, AI-based periodic CSI reporting can also be avoided through standard avoidance. In this case, the UE does not want the report quantity in the base station's periodic CSI reporting configuration to be AI-based reporting.

[0438] Based on at least one of Examples 1 to 5, several specific examples are listed below:

[0439] Specific example 1:

[0440] To configure MAC CE override RRC, first perform the following configurations through RRC:

[0441] The report content can be configured through other RRC information elements (IEs), as follows:

[0442] Based on the above RRC configuration, it can be overridden through the MAC CE instance in Figures 5a and 5b.

[0443] In Figure 5a, the multiple information fields are S0, S1, S2, and S3, each of which corresponds to a report content identifier. S0 = 1 activates the report content corresponding to the report content identifier corresponding to S0, for example, the second CSI report uses the configuration corresponding to S0; S1 = 0 deactivates the report content corresponding to the report content identifier corresponding to S1.

[0444] In FIG5b , the first information field is S, and S=0 represents report content identifier #0. For example, the second CSI report adopts the configuration corresponding to report content identifier #0.

[0445] It can be understood that in the figure, CSI config ID represents the CSI report configuration identifier, and R represents a reserved bit.

[0446] Specific example 2:

[0447] The method of this example may include the following steps:

[0448] Step S5101: The base station configures aperiodic CSI reporting #1 (ie, configuration identifier #1, the same below) and aperiodic CSI reporting #2 via RRC.

[0449] Optionally, report-quantity #1 is based on the CSI report of AI model #1;

[0450] Optionally, report-quantity #2 is a CSI report based on the eType II codebook, and a specific eType II codebook parameter configuration method reuses the existing technology.

[0451] Step S5102: At time 1, the base station triggers aperiodic CSI reporting #1 and aperiodic CSI-RS transmission through DCI signaling.

[0452] Optionally, the UE then uses AI model #1 to calculate and report CSI.

[0453] Step S5103, at time 2, the base station determines that the reporting performance of the channel feature vector information based on AI model #1 is poor.

[0454] Step S5104: At time 3, the base station triggers aperiodic CSI reporting #2 and aperiodic CSI-RS transmission through DCI signaling.

[0455] Optionally, the UE then calculates the CSI report based on the eType II codebook.

[0456] Specific example 3:

[0457] The method of this example may include the following steps:

[0458] In step S5201, the base station configures aperiodic CSI reporting #1, aperiodic CSI reporting #2, and aperiodic CSI reporting #3 through RRC.

[0459] Optionally, report-quantity #1 is based on the CSI report of AI model #1;

[0460] Optionally, report-quantity in #2 is a CSI report based on the eType II codebook, and the specific eType II codebook parameter configuration method reuses the existing technology;

[0461] Optionally, the report-quantity in #3 is based on the CSI report of AI model #2.

[0462] Step S5202: At time 1, the base station triggers aperiodic CSI reporting #1 and aperiodic CSI-RS transmission through DCI signaling.

[0463] Optionally, the UE then uses AI model #1 to calculate and report CSI.

[0464] Step S5203, at time 2, the base station determines that the reporting performance of the channel feature vector information based on AI model #1 is poor.

[0465] Step S5204: At time 3, the base station triggers aperiodic CSI reporting #3 and aperiodic CSI-RS transmission through DCI signaling.

[0466] Optionally, the UE then uses AI model #2 to calculate and report CSI.

[0467] Specific example 4:

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

[0469] In step S5301, the base station configures semi-static CSI reporting #1 and semi-static CSI reporting #2 through RRC.

[0470] Optionally, report-quantity #1 is based on the channel feature vector information reported by AI model #1;

[0471] Optionally, report-quantity #2 is a CSI report based on the eType II codebook, and a specific eType II codebook parameter configuration method reuses the existing technology.

[0472] Step S5302: At time 1, the base station activates semi-static CSI reporting #1 through DCI signaling.

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

[0474] Step S5303, at time 2, the base station determines that the reporting performance of the channel feature vector information based on AI model #1 is poor.

[0475] Step S5304: At time 3, the base station deactivates semi-static CSI reporting #1 through DCI signaling.

[0476] Optionally, the UE then stops calculating CSI reporting based on AI model #1.

[0477] Step S5305: At time 4, the base station triggers semi-static CSI reporting #2 through DCI signaling.

[0478] Optionally, the UE then calculates the CSI report based on the eType II codebook.

[0479] Specific example 5:

[0480] The method of this example may include the following steps:

[0481] In step S5401, the base station configures semi-static CSI reporting #1 and semi-static CSI reporting #2 through RRC.

[0482] Optionally, report-quantity #1 is based on the channel feature vector information reported by AI model #1;

[0483] Optionally, report-quantity #2 is a CSI report based on the eType II codebook, and a specific eType II codebook parameter configuration method reuses the existing technology.

[0484] Step S5402: At time 1, the base station activates semi-static CSI reporting #1 and deactivates semi-static CSI reporting #2 through MAC CE signaling.

[0485] Optionally, the UE then uses AI model #1 to calculate and report CSI.

[0486] Step S5403, at time 2, the base station determines that the reporting performance of the channel feature vector information based on AI model #1 is poor.

[0487] Step S5404: At time 3, the base station deactivates semi-static CSI reporting #1 and activates semi-static CSI reporting #2 through MAC CE signaling.

[0488] Optionally, the UE then calculates the CSI report based on the eType II codebook.

[0489] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0490] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0491] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution 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 relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by 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 implementing the hardware circuit configuration 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. In addition, 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), a deep learning processing unit (DPU), etc.

[0492] Figure 6a is a schematic diagram of the structure of a terminal 101 proposed in an embodiment of the present disclosure. As shown in Figure 6a, terminal 6100 may include at least one of a transceiver module 6101 and a processing module 6102. In some embodiments, transceiver module 6101 is configured to receive first information from a network device, the first information including configuration information for a first CSI report, and to receive second information from the network device indicating configuration information for a second CSI report. 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.

[0493] Optionally, the transceiver module is used to perform at least one of the communication steps of sending and / or receiving performed by the terminal 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module is used to perform at least one of the other steps performed by the terminal 101 in any of the above methods, which will not be described in detail here.

[0494] Figure 6b is a schematic diagram of the structure of a network device 102 according to an embodiment of the present disclosure. As shown in Figure 6b, terminal 6200 may include at least one of a transceiver module 6201 and a processing module 6202. In some embodiments, transceiver module 6201 is configured to send first information to the terminal, the first information including configuration information for a first CSI report. Transceiver module 6201 is also configured to send second information to the terminal, the second information indicating configuration information for a second CSI report. The second information is used to cause the terminal to switch from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

[0495] Optionally, the transceiver module is used to perform at least one of the communication steps of sending and / or receiving performed by the network device 102 in any of the above methods, which will not be described in detail 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 described in detail here.

[0496] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0497] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0498] Figure 7a is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0499] As shown in Figure 7a, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The communication device 7100 is used to perform any of the above methods.

[0500] 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 be located outside the communication device 7100.

[0501] 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 transceiver 7103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101 and step S2102, but not limited thereto), and the processor 7101 performs at least one of the other steps (for example, step S2103, step S2104, and step S2105, but not limited thereto).

[0502] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0503] 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. The interface circuit 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0504] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (7) others, etc.

[0505] FIG7 b is a schematic diagram of the structure of a chip 7200 according to an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 7200 shown in FIG7 b , but the present disclosure is not limited thereto.

[0506] The chip 7200 includes one or more processors 7201 , and the chip 7200 is configured to execute any of the above methods.

[0507] In some embodiments, the chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to the memory 7203. The interface circuit 7202 can be used to receive signals from the memory 7203 or other devices, and can be used to send signals to the memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in the memory 7203 and send the instructions to the processor 7201.

[0508] In some embodiments, the interface circuit 7202 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, step S2102, but not limited to these), and the processor 7201 executes at least one of the other steps (for example, step S2103, step S2104, S2105, but not limited to these).

[0509] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0510] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0511] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes 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 is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0512] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0513] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods. Industrial Applicability

[0514] In the disclosed method, the terminal receives the first information and the second information sent by the network device to obtain the first CSI report and the second CSI report configured by the network device, so that the terminal can switch from reporting according to the first CSI report or fall back to reporting according to the second CSI report at an appropriate time, which is conducive 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, where the first information includes configuration information of the first CSI report; The terminal receives second information sent by the network device, where the second information is used to indicate configuration information of a second CSI report; The terminal switches from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

2. The method of claim 1, wherein: The first CSI report includes a periodic CSI report based on artificial intelligence AI.

3. The method of claim 2, wherein: The configuration information of the second CSI report includes at least one of the following: Configuration identification ID; Report parameters; Codebook configuration; Artificial intelligence or machine learning AI / ML model configuration; Frequency domain parameters.

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

5. The method of claim 3, wherein: The second information includes at least one information field, where the information field is used to indicate a report content identifier corresponding to the second CSI report, and the first CSI report includes a plurality of report parameters corresponding to the report content identifier.

6. The method of claim 5, wherein: The second information includes a first information field, and different bit values ​​of the first information field indicate a 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 first bit value is activated, and the report content identifier corresponding to the information field with a second bit value is deactivated.

8. The method of claim 1, wherein: The first CSI report is defined by the protocol 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 through a media access control element 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 for a first duration; The first channel is used to transmit the second information.

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

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

13. The method according to 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 a plurality of AI-based semi-static first CSI reports.

15. The method of claim 14, wherein: The second information is used to indicate activation or deactivation of the first CSI report, wherein the second CSI report corresponds to the first CSI report that is activated among the multiple first CSI reports.

16. The method according to 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, where the first information includes configuration information of the first CSI report; The network device sends second information to the terminal, where the second information is 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.

18. The method of claim 17, wherein: The first CSI report includes a periodic CSI report based on artificial intelligence AI.

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

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

21. The method of claim 19, wherein: The second information includes at least one information field, where the information field is used to indicate a report content identifier corresponding to the second CSI report, and the first CSI report includes a plurality of report parameters corresponding to the report content identifier.

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 a 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 first bit value is activated, and the report content identifier corresponding to the information field with a second bit value is deactivated.

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

25. The method according to any one of claims 18 to 24, wherein: The second information is sent through a media access control element MAC CE.

26. The method according to 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 for a first duration; The first channel is used to transmit the second information.

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

28. The method of claim 18, wherein: The second information is used to indicate a configuration identifier of the second CSI report, wherein the second CSI report corresponds to one of the multiple 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 a plurality of AI-based semi-static first CSI reports.

31. The method of claim 30, wherein: The second information is used to indicate activation or deactivation of the first CSI report, wherein the second CSI report corresponds to the first CSI report that is activated among the multiple 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: A transceiver module, configured to receive first information sent by a network device, wherein the first information includes configuration information of a first CSI report; The transceiver module is further used to receive second information sent by the network device, where the second information is used to indicate configuration information of a second CSI report; A processing module is used to switch from reporting CSI according to the first CSI report to reporting CSI according to the second CSI report.

34. A network device comprising: A transceiver module, configured to send first information to a terminal, where the first information includes configuration information of a first CSI report; The transceiver module is further used to send second information to the terminal, where the second information is 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.

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 described in any one of claims 17 to 32.

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

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

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