Instruction information sending method, instruction information receiving method, terminal, network device, system and medium

Abstract

The present disclosure relates to an instruction information sending method, an instruction information receiving method, a terminal, a network device, a system and a medium. The instruction information receiving method comprises: a terminal receives instruction information sent by a network device, the instruction information being used for instructing the terminal to activate a channel state information (CSI) processing model based on artificial intelligence (AI) or machine learning (ML) before applying the CSI processing model, wherein the CSI processing model is used for performing CSI processing on the basis of spatial domain information, frequency domain information and time domain information. In embodiments of the present disclosure, by receiving the instruction information sent by the network device, the terminal determines whether to activate the CSI processing model or not, so that the terminal can activate the CSI processing model at an appropriate time on the basis of the instruction from the network device, so as to ensure the accuracy of applying the CSI processing model.

Description

Method, terminal, network device, system and medium for sending and receiving indication 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 sending and receiving indication information. Background Art

[0002] In channel state information (CSI) processing based on artificial intelligence (AI) or machine learning (ML), CSI can be predicted and compressed based on AI or ML models. However, compression based on spatial and frequency domain information (SF), or SF compression, has insufficient performance improvement. Compression based on time, spatial, and frequency domain information (TSF or SFT compression), or TSF compression, can further improve compression performance.

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide a method, terminal, network device, system, and medium for sending and receiving indication information.

[0005] In a first aspect, an embodiment of the present disclosure provides a method for receiving indication information, the method comprising:

[0006] The terminal receives indication information sent by the network device, where the indication information is used to instruct the terminal to activate a CSI processing model before applying a channel state information CSI processing model based on artificial intelligence AI or machine learning ML; wherein the CSI processing model is used to perform CSI processing based on spatial domain information, frequency domain information, and time domain information.

[0007] In a second aspect, an embodiment of the present disclosure provides a method for sending indication information, the method comprising:

[0008] The network device sends indication information to the terminal, where the indication information is used to instruct the terminal to activate a CSI processing model before applying an AI or ML-based CSI processing model; wherein the CSI processing model is used to perform CSI processing based on spatial domain information, frequency domain information, and time domain information.

[0009] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0010] A transceiver module is configured to receive indication information sent by a network device, wherein the indication information is used to instruct the terminal to activate the CSI processing model before applying the channel state information (CSI) processing model based on artificial intelligence (AI) or machine learning (ML); wherein the CSI processing model is used to perform CSI processing based on spatial domain information, frequency domain information, and time domain information.

[0011] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0012] A transceiver module is configured to send indication information to a terminal, wherein the indication information is configured to instruct the terminal to activate the CSI processing model before applying the AI ​​or ML-based CSI processing model; wherein the CSI processing model is configured to perform CSI processing based on spatial domain information, frequency domain information, and time domain information.

[0013] In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

[0014] one or more processors;

[0015] The terminal is used to execute the method described in the first aspect.

[0016] In a sixth aspect, an embodiment of the present disclosure provides a network device, including:

[0017] one or more processors;

[0018] The network device is used to execute the method described in the second aspect.

[0019] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0020] The terminal is configured to implement the method according to the first aspect;

[0021] The network device is configured to implement the method described in the second aspect.

[0022] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0023] When the instruction is executed on a communication device, the communication device is caused to execute the method according to the first aspect or the second aspect.

[0024] In the embodiment of the present disclosure, the terminal receives indication information sent by the network device to learn whether the CSI processing model needs to be activated, so that the terminal can activate the CSI processing model at an appropriate time based on the indication of the network device to ensure the accuracy of the application of the CSI processing model. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0027] FIG2a is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0028] FIG2 b is a schematic diagram of a CSI processing model provided according to an embodiment of the present disclosure;

[0029] Figures 2c to 2d are schematic diagrams of the MAC CE structure provided according to an embodiment of the present disclosure;

[0030] 3a to 3d are exemplary flowcharts of a method according to an embodiment of the present disclosure;

[0031] 4a to 4d are exemplary flowcharts of a method according to an embodiment of the present disclosure;

[0032] FIG5a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

[0033] FIG5b is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

[0034] FIG6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0035] FIG6 b is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] Embodiments of the present disclosure provide a method, terminal, network device, system, and medium for sending and receiving indication information.

[0037] In a first aspect, an embodiment of the present disclosure provides a method for receiving indication information, the method comprising:

[0038] The terminal receives indication information sent by the network device, where the indication information is used to instruct the terminal to activate a CSI processing model before applying a channel state information CSI processing model based on artificial intelligence AI or machine learning ML; wherein the CSI processing model is used to perform CSI processing based on spatial domain information, frequency domain information, and time domain information.

[0039] In the above embodiment, the terminal learns whether the CSI processing model needs to be activated by receiving indication information sent by the network device, so that the terminal can reactivate the CSI processing model at an appropriate time based on the indication of the network device to ensure the accuracy of the applied CSI processing model.

[0040] In conjunction with the embodiments of the first aspect, in some embodiments, the terminal receives the indication information sent by the network device, including one of the following:

[0041] The terminal receives a Media Access Control Element (MAC CE) sent by a network device, where the MAC CE includes indication information; or

[0042] The terminal receives downlink control information (DCI) sent by the network device, where the DCI includes indication information.

[0043] In the above embodiment, the terminal may receive indication information sent by the network device through MAC CE or DCI, so as to promptly learn whether the CSI processing model needs to be activated in different ways.

[0044] In combination with the embodiments of the first aspect, in some embodiments, the MAC CE includes a MAC sub-header, and the MAC sub-header includes indication information.

[0045] In the above embodiment, the terminal may learn whether the CSI processing model needs to be activated through the MAC subheader. In this case, the MAC CE may not include specific information content, which is beneficial to saving signaling resources of the MAC CE.

[0046] In conjunction with the embodiments of the first aspect, in some embodiments, the MAC CE further includes a first information field, where the first information field is used to indicate at least one of the following:

[0047] Model identifier corresponding to the CSI processing model;

[0048] The cell identifier corresponding to the CSI processing model;

[0049] Function identifier corresponding to the CSI processing model.

[0050] In the above embodiment, the MAC CE includes a MAC subheader and a first information field, and can indicate relevant identification information of the CSI processing model to be activated through the first information field, so that the terminal can accurately activate the indicated model.

[0051] In combination with the embodiments of the first aspect, in some embodiments, the MAC CE does not include the fourth information field, and the fourth information field is an information field used to indicate activation or deactivation.

[0052] In the above embodiment, compared with the conventional MAC CE, the MAC CE in this embodiment can omit the information field for indicating activation or deactivation to save signaling resources.

[0053] In combination with the embodiment of the first aspect, in some embodiments, the DCI includes a second information field, and the second information field includes indication information.

[0054] In the above embodiment, the terminal promptly learns whether the CSI processing model needs to be activated through the second information field in the DCI.

[0055] In combination with the embodiments of the first aspect, in some embodiments, the DCI also includes a third information field, which is used to indicate an identifier corresponding to the CSI processing model, wherein the identifier is at least one of a model identifier, a cell identifier, or a function identifier.

[0056] In the above embodiment, the identification information of the CSI processing model to be activated is indicated through the third information field of the DCI, so that the terminal can accurately know the CSI processing model to be activated.

[0057] In combination with the embodiments of the first aspect, in some embodiments, the format of the DCI is a defined DCI format (DCI format), or the DCI is scrambled by a defined Radio Network Temporary Identity (RNTI).

[0058] In the above embodiment, the DCI used to indicate the activation model may be a specific DCI format, or a DCI scrambled by a special RNRI, so that the terminal can accurately monitor the corresponding DCI.

[0059] In conjunction with the embodiments of the first aspect, in some embodiments, when the MAC CE includes indication information, the effective time of the indication information is after the first time and is separated from the first time by a first duration;

[0060] The first time is the uplink time when the terminal sends feedback information corresponding to the MAC CE, and the first duration includes the duration defined by the protocol and the duration configured by the network device.

[0061] In the above embodiment, the terminal may determine the validity time of the MAC CE or the indication information based on the MAC CE carrying the indication information, so as to activate the CSI processing model at an appropriate time.

[0062] In conjunction with the embodiments of the first aspect, in some embodiments, the effective time t satisfies:

[0063] t=X+Z+K Mac , where X = n + K offset +K1;

[0064] Among them, X represents the first time, Z represents the duration defined by the protocol, and K Mac , Koffset K1 is the value indicated by the network device, and n represents the downlink time when the terminal receives the MAC CE.

[0065] In the above embodiment, the terminal may determine the effective time based on relevant parameters to activate the model at an appropriate time.

[0066] In conjunction with the embodiments of the first aspect, in some embodiments, when the DCI includes indication information, the effective time of the indication information is after the second duration of the second time;

[0067] The second time is the downlink time corresponding to the uplink time when the terminal receives the DCI, and the second duration is the duration defined by the protocol or the duration reported by the terminal.

[0068] In the above embodiment, the terminal may determine the validity time of the DCI or the indication information based on the DCI carrying the indication information, so as to activate the CSI processing model at an appropriate time.

[0069] In conjunction with the embodiments of the first aspect, in some embodiments, the effective time t satisfies:

[0070] After (Y1+a) or the first time domain unit after (Y1+a), where

[0071] Wherein, Y1 represents the second time, a represents the second duration, and Y represents the uplink time when the terminal receives the DCI. represents a round-up operation, μ1 is a constant determined according to the subcarrier spacing SCS of the physical uplink shared channel PUSCH, and μ2 is a constant determined according to the SCS of the physical downlink control channel PDCCH.

[0072] In the above embodiment, the terminal may determine the effective time based on relevant parameters to activate the model at an appropriate time.

[0073] In combination with the embodiments of the first aspect, in some embodiments, activating the CSI processing model includes: resetting the accumulated CSI information in the CSI processing model to a default value or an initial value; or resetting the accumulated CSI information based on terminal capabilities or terminal implementation.

[0074] In the above embodiment, after receiving the indication information, the terminal may activate the CSI processing model to reset the accumulated CSI information, so as to ensure the accuracy of the re-application model.

[0075] In combination with the embodiments of the first aspect, in some embodiments, the accumulated CSI information is determined based on historical CSI obtained from multiple measurements.

[0076] In the above embodiment, the accumulated CSI information is affected by the historical CSI data measured by the terminal. After resetting the accumulated CSI information, the terminal no longer uses inappropriate historical CSI data, thereby improving the accuracy of the model.

[0077] In a second aspect, an embodiment of the present disclosure provides a method for sending indication information, the method comprising:

[0078] The network device sends indication information to the terminal, where the indication information is used to instruct the terminal to activate a CSI processing model before applying an AI or ML-based CSI processing model; wherein the CSI processing model is used to perform CSI processing based on spatial domain information, frequency domain information, and time domain information.

[0079] In conjunction with the embodiments of the second aspect, in some embodiments, the network device sends the instruction information to the terminal, including one of the following:

[0080] The network device sends a MAC CE to the terminal, where the MAC CE includes indication information; or,

[0081] The network device sends DCI to the terminal, where the DCI includes indication information.

[0082] In combination with the embodiments of the second aspect, in some embodiments, the MAC CE includes a MAC subheader, and the MAC subheader includes indication information.

[0083] In conjunction with the embodiment of the second aspect, in some embodiments, the MAC CE further includes a first information field, where the first information field is used to indicate at least one of the following:

[0084] Model identifier corresponding to the CSI processing model;

[0085] The cell identifier corresponding to the CSI processing model;

[0086] Function identifier corresponding to the CSI processing model.

[0087] In combination with the embodiments of the second aspect, in some embodiments, the MAC CE does not include the fourth information field, and the fourth information field is an information field used to indicate activation or deactivation.

[0088] In combination with the embodiments of the second aspect, in some embodiments, the DCI includes a second information field, and the second information field includes indication information.

[0089] In combination with the embodiments of the second aspect, in some embodiments, the DCI also includes a third information field, which is used to indicate an identifier corresponding to the CSI processing model, wherein the identifier is at least one of a model identifier, a cell identifier, or a function identifier.

[0090] In combination with the embodiments of the second aspect, in some embodiments, the format of the DCI is a defined DCI format, or the DCI is scrambled by a defined RNTI.

[0091] In conjunction with the embodiments of the second aspect, in some embodiments, when the MAC CE includes indication information, the effective time of the indication information is after the first time and is separated from the first time by a first duration;

[0092] The first time is the uplink time when the terminal sends feedback information corresponding to the MAC CE, and the first duration includes the duration defined by the protocol and the duration configured by the network device.

[0093] In conjunction with the embodiments of the second aspect, in some embodiments, the effective time t satisfies:

[0094] t=X+Z+K Mac , where X = n + K offset +K1;

[0095] Among them, X represents the first time, Z represents the duration defined by the protocol, and K Mac , K offset K1 is the value indicated by the network device, and n represents the downlink time when the terminal receives the MAC CE.

[0096] In conjunction with the embodiments of the second aspect, in some embodiments, when the DCI includes indication information, the effective time of the indication information is after the second duration of the second time;

[0097] The second time is the downlink time corresponding to the uplink time when the terminal receives the DCI, and the second duration is the duration defined by the protocol or the duration reported by the terminal.

[0098] In conjunction with the embodiments of the second aspect, in some embodiments, the effective time t satisfies:

[0099] After (Y1+a) or the first time domain unit after (Y1+a), where

[0100] Wherein, Y1 represents the second time, a represents the second duration, and Y represents the uplink time when the terminal receives the DCI. represents a round-up operation, μ1 is a constant determined according to the SCS of the PUSCH, and μ2 is a constant determined according to the SCS of the PDCCH.

[0101] In combination with the embodiments of the second aspect, in some embodiments, activating the CSI processing model includes: resetting the accumulated CSI information in the CSI processing model to a default value or an initial value; or, resetting the accumulated CSI information based on terminal capabilities or terminal implementation.

[0102] In combination with the embodiments of the second aspect, in some embodiments, the accumulated CSI information is determined based on historical CSI obtained by the terminal through multiple measurements.

[0103] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0104] A transceiver module is configured to receive indication information sent by a network device, wherein the indication information is used to instruct the terminal to activate the CSI processing model before applying the channel state information (CSI) processing model based on artificial intelligence (AI) or machine learning (ML); wherein the CSI processing model is used to perform CSI processing based on spatial domain information, frequency domain information, and time domain information.

[0105] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0106] A transceiver module is configured to send indication information to a terminal, wherein the indication information is configured to instruct the terminal to activate the CSI processing model before applying the AI ​​or ML-based CSI processing model; wherein the CSI processing model is configured to perform CSI processing based on spatial domain information, frequency domain information, and time domain information.

[0107] In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

[0108] one or more processors;

[0109] The terminal is used to execute the method described in the first aspect.

[0110] In a sixth aspect, an embodiment of the present disclosure provides a network device, including:

[0111] one or more processors;

[0112] The network device is used to execute the method described in the second aspect.

[0113] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein:

[0114] The terminal is configured to implement the method according to the first aspect;

[0115] The network device is configured to implement the method described in the second aspect.

[0116] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0117] When the instruction is executed on a communication device, the communication device is caused to execute the method according to the first aspect or the second aspect.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0127] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] 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.

[0135] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0136] 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.

[0137] 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.

[0138] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0139] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0140] 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.

[0141] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0142] As shown in FIG. 1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0143] 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.

[0144] In some embodiments, when the network device 102 is a network device, the network device may include at least one of an access network device and a core network device.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] In some embodiments, the core network device can be a device including one or more network elements, or it can be multiple devices or device groups, each including all or part of one or more network elements. The network element can be virtual or physical. The core network includes, for example, at least one of the Evolved Packet Core (EPC), the 5G Core Network (5GCN), and the Next Generation Core (NGC). Alternatively, the core network device refers to a network element with a specific function, such as the Access Management Function (AMF), the Service Management Function (SMF), etc.

[0149] 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.

[0150] 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.

[0151] 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.

[0152] 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 processing methods, and next-generation systems based on and extending these. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0153] In the disclosed embodiment, SF compression does not improve the compression performance enough, such as throughput improvement of <10%. By adding time domain information to the compression, such as TSF compression, the compression performance can be improved.

[0154] In the embodiments of the present disclosure, the application process of an AI or ML model, such as a CSI processing model, may include a training phase, an inference phase, and a monitoring phase. For example, during the model inference phase, the terminal 101 obtains measured CSI or obtains measured CSI based on reference signal (RS) measurements, and inputs the measured CSI into the CSI processing model to output predicted CSI.

[0155] Optionally, unlike sf compression, tsf compression not only needs to obtain the measured CSI based on the RS at the current moment in each inference phase, but also needs to synchronously use the accumulated CSI information of the previous or previous time domain unit as the input of the CSI processing model.

[0156] Optionally, the accumulated CSI information may include historical CSI information (or historical information) learned in a specific scenario. If the scenario changes, the learned historical information may become unavailable, that is, the input of the CSI processing model may become unavailable. It is necessary to solve how the terminal 101 applies the CSI processing model in this case.

[0157] Figure 2a is an interactive diagram of a method for sending and receiving indication information according to an embodiment of the present disclosure. As shown in Figure 2a, an embodiment of the present disclosure relates to a method for sending and receiving indication information, the method comprising:

[0158] In step S2101 , the network device 102 sends instruction information to the terminal 101 .

[0159] In some embodiments, the indication information is used to instruct the terminal 101 to activate the CSI processing model before applying the AI ​​or ML based CSI processing model.

[0160] Optionally, the indication information may instruct terminal 101 to initially activate the CSI processing model or to reactivate the CSI processing model. For example, if terminal 101 has not yet applied the CSI processing model before receiving the indication information, then after receiving the indication information, terminal 101 may activate the CSI processing model for the first time. For another example, if terminal 101 has already applied or is currently applying the CSI processing model before receiving the indication information, then after receiving the indication information, terminal 101 needs to reactivate the CSI processing model; otherwise, it will no longer be able to apply the CSI processing model.

[0161] In some embodiments, the CSI processing model is used to perform CSI processing based on spatial domain information, frequency domain information, and time domain information. Taking CSI compression as an example, the CSI processing model may be a tsf compression model.

[0162] Optionally, as shown in FIG2b , the CSI processing model may include a long short-term memory (LSTM) module and a sequence model (Transformer, TF) module to process the input information.

[0163] Optionally, as shown in FIG2 b , the CSI processing model may include an encoding part (Encoder) arranged on the terminal 101 side and a decoding part (Decoder) arranged on the network device 102 side.

[0164] Taking the coding portion of terminal 101 as an example, the input information (or simply input) of the CSI processing model on terminal 101 includes: CSI obtained by measuring the downlink reference signal at the current moment and the accumulated CSI information before the current moment. The output information (or simply output) of the CSI processing model is compressed CSI. Terminal 101 can encode and quantize (quantize) the input information (e.g., denoted as V1) based on the CSI processing model to achieve CSI compression, and can transmit the compressed information to network device 102. Network device 102 dequantizes (de-quantizes) and decodes the received information to obtain decompressed information. Accumulated CSI information is generated on both terminal 101 and network device 102.

[0165] Optionally, the downlink reference signal may be a Channel State Information Reference Signal (CSI-RS). Based on the configuration of the network device 102, the CSI-RS may be transmitted at a certain period. Alternatively, the CSI-RS may be transmitted at a certain period over a period of time, such as within a base station activation time window.

[0166] Optionally, the accumulated CSI information is determined based on historical CSI obtained from multiple measurements. For example, before the current moment, terminal 101 measured CSI-RS at multiple moments and obtained the measured CSI corresponding to each CSI-RS, which are recorded as multiple historical CSIs. The accumulated CSI information can be calculated and determined based on the multiple historical CSIs.

[0167] In some embodiments, activating the CSI processing model includes: resetting the accumulated CSI information in the CSI processing model to a default value or an initial value; or resetting the accumulated CSI information based on terminal capabilities or terminal implementation.

[0168] Optionally, the default value may be 0, and the initial value may be a predefined or specific value. Optionally, the reset value may be different depending on the terminal capabilities.

[0169] Optionally, the accumulated CSI information may be accumulated CSI information of a time unit before the terminal 101 receives the indication information. The time unit may be related to the period of the CSI-RS, or may be one or more symbols, one or more time slots, or one or more milliseconds.

[0170] In some embodiments, the indication information may be sent via a MAC CE or a DCI. For example, network device 102 sends a MAC CE to terminal 101, where the MAC CE includes the indication information; or, for another example, network device 102 sends a DCI to terminal 101, where the DCI includes the indication information.

[0171] Optionally, the indication information may occupy one or more bits.

[0172] In one embodiment, when sending indication information through MAC CE, the following two examples may be included:

[0173] In the first example, the MAC CE includes only a MAC subheader, which includes indication information. In this example, the MAC CE includes only a MAC subheader, without any specific information content. The MAC subheader includes indication information, i.e., the MAC subheader indicates activation of the CSI processing model.

[0174] 2c, the MAC subheader includes a Logical Channel Identification (LCID) field and a Reserved (R) field. The activation of the CSI processing model is indicated by a specific LCID.

[0175] In the second example, the MAC CE includes a MAC subheader and a first information field, where the first information field is used to indicate at least one of the following:

[0176] Model ID corresponding to the CSI processing model;

[0177] The cell ID corresponding to the CSI processing model;

[0178] Functionality ID corresponding to the CSI processing model.

[0179] Optionally, the cell identifier indicates the cell where the CSI processing model to be activated is located. The model identifier or function identifier is used to determine the CSI processing model to be activated.

[0180] In this example, the MAC CE includes not only a MAC subheader but also MAC CE content, namely the first information field. Referring to Figure 2d , the MAC subheader includes an LCID field and an R field. Referring to the description of the corresponding example in Figure 2c , the LCID field can still be used to indicate that the MAC CE is used to indicate the activation of the CSI processing model.

[0181] Optionally, as shown in reference Figure 2d, the first information domain can be configured as one or more, for example, the first information domain includes a cell identification domain and a function identification domain; wherein the function identification domain can be replaced with a model identification domain, or the first information domain includes a cell identification domain, a function identification domain and a model identification domain.

[0182] In the above example, the MAC CE does not include the fourth information field, which is an information field used to indicate activation or deactivation.

[0183] It is worth noting that a conventional MAC CE typically includes an information field for activation or deactivation (A / D), with different values ​​in this information field indicating activation or deactivation, respectively. In this embodiment, when the indication information is sent via the MAC CE, the terminal 101, upon receiving the indication information, deems that the CSI processing model needs to be activated, and the fourth information field may not be set to save signaling resources.

[0184] In the above example, there is no limit on the number of bits in different information fields in the MAC CE, such as the LCID field, R field, or cell identity field. When the total occupied bits are less than an integer multiple of 8 bits, reserved bits (R bits) can be used to fill the gap.

[0185] In another manner, when the indication information is sent through DCI, the following two examples may be included:

[0186] In a third example, the DCI includes a second information field, and the second information field includes indication information.

[0187] Optionally, the second information field may include 1 bit, and when the field value is 1, it indicates that the terminal 101 needs to activate the CSI processing model.

[0188] In a fourth example, the DCI further includes a third information field, and the third information field is used to indicate an identifier corresponding to the CSI processing model, wherein the identifier is at least one of a model identifier, a cell identifier, or a function identifier.

[0189] Optionally, in this example, the DCI includes a second information field and a third information field. The second information field is used as an enable field to instruct the terminal 101 to activate the CSI processing model; the third information field is used as an ID field to indicate the identifier of the CSI processing model to be activated.

[0190] Optionally, the identifier corresponding to the CSI processing model may include at least one of the following: a function identifier, a cell identifier, and a model identifier.

[0191] In the above example, the format of the DCI is a defined DCI format, or the DCI is scrambled by a defined RNTI.

[0192] Optionally, the DCI may be in DCI format 2_x. Optionally, the DCI may be scrambled by AI-RNTI.

[0193] In some embodiments, the terminal 101 receives indication information sent by the network device 102 via MAC CE or DCI.

[0194] In step S2102, the terminal 101 determines the effective time of the indication information.

[0195] Optionally, after receiving the indication information, the terminal 101 needs to determine the effective time of the indication information to determine the timing of activating the CSI processing model.

[0196] Optionally, different signalings for sending indication information have different corresponding effective times.

[0197] In some embodiments, when the MAC CE includes indication information, the effective time of the indication information is after the first time and is separated from the first time interval by a first duration; wherein, the first time is the uplink time when the terminal sends the feedback information corresponding to the MAC CE, and the first duration includes the duration defined by the protocol and the duration configured by the network device.

[0198] Optionally, the feedback information corresponding to the MAC CE is Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK).

[0199] Optionally, the network device 102 may send the MAC CE via a physical downlink shared channel (PDSCH). The first time may be the time when the terminal 101 receives the PDSCH including the MAC CE.

[0200] Optionally, the effective time t satisfies:

[0201] t=X+Z+K Mac , where X = n + K offset +K1;

[0202] Among them, X represents the first time, Z represents the duration defined by the protocol, and K Mac , Koffset K1 is the value indicated by the network device, and n represents the downlink time when the terminal receives the MAC CE.

[0203] Optionally, the time may be a time slot, a symbol, or a millisecond. Taking a time slot as an example, X may represent slot X, and n may represent slot n.

[0204] Alternatively, Z can be defined as:

[0205] Optionally, in a terrestrial network (TN), K Mac , K offset Can be 0.

[0206] Optionally, K1 represents the time interval between the terminal 101 receiving the MAC CE and feeding back the HARQ-ACK.

[0207] In some embodiments, when the DCI includes indication information, the effective time of the indication information is after the second duration of the second time; wherein, the second time is the downlink time corresponding to the uplink time when the terminal receives the DCI, and the second duration is the duration defined by the protocol or the duration reported by the terminal.

[0208] Optionally, the second duration may be related to the capability of terminal 101 .

[0209] Optionally, the effective time t satisfies:

[0210] After (Y1+a) or the first time domain unit after (Y1+a), where

[0211] Wherein, Y1 represents the second time, a represents the second duration, and Y represents the uplink time when the terminal receives the DCI. represents a round-up operation, μ1 is a constant determined according to the subcarrier spacing (SCS) of the physical uplink shared channel (PUSCH), and μ2 is a constant determined according to the SCS of the physical downlink control channel (PDCCH).

[0212] Optionally, taking time slot as an example, Y1 may represent slot Y1, Y may represent slot Y, and Z may represent slot Z.

[0213] Optionally, the subcarrier spacing SCS of the uplink time and the downlink time may be different.

[0214] Step S2103: The terminal 101 activates the CSI processing model after the indication information takes effect.

[0215] In some embodiments, the activated CSI processing model may be a reactivated CSI processing model. In combination with the description of the foregoing embodiments, reactivating the CSI processing model may include: resetting accumulated CSI information.

[0216] Optionally, after receiving the indication information, the terminal 101 resets the accumulated CSI information to 0.

[0217] Optionally, at the same effective time, the network device 102 reactivates the CSI processing model of the decoding part, that is, resets the accumulated CSI information.

[0218] In some embodiments, after activating the CSI processing model, the terminal 101 applies the CSI processing model to perform CSI reporting (CSI report).

[0219] Optionally, taking the indication information indicating reactivation of the CSI processing model as an example, CSI reporting performed after the effective time includes CSI obtained by the terminal 101 based on the CSI processing model after reactivation. CSI reporting performed before the effective time is CSI obtained by the terminal 101 based on the CSI processing model before reactivation.

[0220] 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.

[0221] 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.

[0222] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0223] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0224] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0225] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0226] 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.

[0227] 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.

[0228] 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.

[0229] The method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2103, such as the method including step S2101.

[0230] In some embodiments, at least one of steps S2102 and S2103 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0231] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 a .

[0232] FIG3a is a flow chart of a method for receiving indication information according to an embodiment of the present disclosure. As shown in FIG3a, an embodiment of the present disclosure relates to a method for receiving indication information, which is executed by terminal 101 and includes:

[0233] Step S3101, obtain instruction information.

[0234] In some embodiments, the implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0235] Optionally, the terminal 101 may obtain indication information from the network device 102 or other entities.

[0236] Step S3102: Determine the effective time of the indication information.

[0237] In some embodiments, the implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a, which will not be repeated here.

[0238] Step S3103: activating the CSI processing model after the indication information takes effect.

[0239] In some embodiments, the implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2a, which will not be repeated here.

[0240] The method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3103, such as the method including step S3101.

[0241] In some embodiments, at least one of steps S3102 and S3103 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0242] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 a .

[0243] FIG3b is a flow chart of a method for receiving indication information according to an embodiment of the present disclosure. As shown in FIG3b, an embodiment of the present disclosure relates to a method for receiving indication information, which is executed by terminal 101 and includes:

[0244] Step S3201: Receive a MAC CE sent by the network device 102, where the MAC CE includes indication information.

[0245] In some embodiments, the implementation of step S3201 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0246] Optionally, the MAC CE includes a MAC subheader, and the MAC subheader includes indication information.

[0247] Optionally, the MAC CE further includes a first information field, where the first information field is used to indicate at least one of the following:

[0248] Model identifier corresponding to the CSI processing model;

[0249] The cell identifier corresponding to the CSI processing model;

[0250] Function identifier corresponding to the CSI processing model.

[0251] Optionally, the MAC CE does not include the fourth information field, and the fourth information field is an information field used to indicate activation or deactivation.

[0252] Step S3202: Determine the validity time of the MAC CE.

[0253] In some embodiments, the implementation of step S3202 can refer to the optional implementation of step S2102 in Figure 2a, which will not be repeated here.

[0254] Optionally, when the MAC CE includes indication information, the effective time of the indication information is after the first time and is separated from the first time interval by a first duration; wherein, the first time is the uplink time when the terminal sends the feedback information corresponding to the MAC CE, and the first duration includes the duration defined by the protocol and the duration configured by the network device.

[0255] Optionally, the effective time t satisfies:

[0256] t=X+Z+K Mac , where X = n + K offset +K1;

[0257] Among them, X represents the first time, Z represents the duration defined by the protocol, and K Mac , K offset K1 is the value indicated by the network device, and n represents the downlink time when the terminal receives the MAC CE.

[0258] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 b .

[0259] FIG3c is a flow chart of a method for receiving indication information according to an embodiment of the present disclosure. As shown in FIG3c, an embodiment of the present disclosure relates to a method for receiving indication information, which is executed by terminal 101 and includes:

[0260] Step S3301: Receive DCI sent by a network device, where the DCI includes indication information.

[0261] In some embodiments, the implementation of step S3301 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0262] Optionally, the DCI includes a second information field, and the second information field includes indication information.

[0263] Optionally, the DCI further includes a third information field, where the third information field is used to indicate an identifier corresponding to the CSI processing model, where the identifier is at least one of a model identifier, a cell identifier, or a function identifier.

[0264] Optionally, the format of the DCI is a defined DCI format, or the DCI is scrambled by a defined radio network temporary identifier RNTI.

[0265] Step S3302: Determine the effective time of the DCI.

[0266] In some embodiments, the implementation of step S3302 can refer to the optional implementation of step S2102 in Figure 2a, which will not be repeated here.

[0267] Optionally, when the DCI includes indication information, the effective time of the indication information is after the second duration of the second time; wherein, the second time is the downlink time corresponding to the uplink time when the terminal receives the DCI, and the second duration is the duration defined by the protocol or the duration reported by the terminal.

[0268] Optionally, the effective time t satisfies:

[0269] After (Y1+a) or the first time domain unit after (Y1+a), where

[0270] Wherein, Y1 represents the second time, a represents the second duration, and Y represents the uplink time when the terminal receives the DCI. represents a round-up operation, μ1 is a constant determined according to the SCS of the PUSCH, and μ2 is a constant determined according to the SCS of the PDCCH.

[0271] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3c.

[0272] FIG3 d is a flow chart of a method for receiving indication information according to an embodiment of the present disclosure. As shown in FIG3 d , an embodiment of the present disclosure relates to a method for receiving indication information, which is executed by terminal 101 and includes:

[0273] Step S3401 , the terminal 101 receives the instruction information sent by the network device 102 .

[0274] In some embodiments, the implementation of step S3401 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0275] Optionally, the indication information is used to instruct the terminal to activate a CSI processing model before applying a channel state information CSI processing model based on artificial intelligence AI or machine learning ML; wherein the CSI processing model is used to perform CSI processing based on spatial domain information, frequency domain information and time domain information.

[0276] In some embodiments, activating the CSI processing model includes: resetting the accumulated CSI information in the CSI processing model to a default value or an initial value; or resetting the accumulated CSI information based on terminal capabilities or terminal implementation.

[0277] Optionally, the accumulated CSI information is determined based on historical CSI obtained through multiple measurements.

[0278] In some embodiments, the terminal receives the indication information sent by the network device, including one of the following:

[0279] The terminal receives a media access control layer control element MAC CE sent by a network device, where the MAC CE includes indication information; or,

[0280] The terminal receives downlink control information DCI sent by the network device, where the DCI includes indication information.

[0281] In some embodiments, the MAC CE includes a MAC subheader, and the MAC subheader includes indication information.

[0282] Optionally, the MAC CE further includes a first information field, where the first information field is used to indicate at least one of the following:

[0283] Model identifier corresponding to the CSI processing model;

[0284] The cell identifier corresponding to the CSI processing model;

[0285] Function identifier corresponding to the CSI processing model.

[0286] Optionally, the MAC CE does not include the fourth information field, and the fourth information field is an information field used to indicate activation or deactivation.

[0287] In some embodiments, the DCI includes a second information field, and the second information field includes indication information.

[0288] Optionally, the DCI further includes a third information field, where the third information field is used to indicate an identifier corresponding to the CSI processing model, where the identifier is at least one of a model identifier, a cell identifier, or a function identifier.

[0289] Optionally, the format of the DCI is a defined DCI format, or the DCI is scrambled by a defined radio network temporary identifier RNTI.

[0290] In some embodiments, when the MAC CE includes indication information, the effective time of the indication information is after the first time and is separated from the first time interval by a first duration; wherein, the first time is the uplink time when the terminal sends the feedback information corresponding to the MAC CE, and the first duration includes the duration defined by the protocol and the duration configured by the network device.

[0291] Optionally, the effective time t satisfies:

[0292] t=X+Z+K Mac , where X = n + K offset +K1;

[0293] Among them, X represents the first time, Z represents the duration defined by the protocol, and K Mac , K offset K1 is the value indicated by the network device, and n represents the downlink time when the terminal receives the MAC CE.

[0294] In some embodiments, when the DCI includes indication information, the effective time of the indication information is after the second duration of the second time; wherein, the second time is the downlink time corresponding to the uplink time when the terminal receives the DCI, and the second duration is the duration defined by the protocol or the duration reported by the terminal.

[0295] Optionally, the effective time t satisfies:

[0296] After (Y1+a) or the first time domain unit after (Y1+a), where

[0297] Wherein, Y1 represents the second time, a represents the second duration, and Y represents the uplink time when the terminal receives the DCI. represents a round-up operation, μ1 is a constant determined according to the subcarrier spacing SCS of the physical uplink shared channel PUSCH, and μ2 is a constant determined according to the SCS of the physical downlink control channel PDCCH.

[0298] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 d .

[0299] FIG4a is a flow chart of a method for sending indication information according to an embodiment of the present disclosure. As shown in FIG4a, an embodiment of the present disclosure relates to a method for sending indication information, which is executed by a network device 102 and includes:

[0300] Step S4101, sending instruction information.

[0301] In some embodiments, the implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0302] Optionally, the network device 102 may send indication information to the terminal 101 or other entities.

[0303] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 a .

[0304] FIG4b is a flow chart of a method for sending indication information according to an embodiment of the present disclosure. As shown in FIG4b, an embodiment of the present disclosure relates to a method for sending indication information, which is executed by the network device 102 and includes:

[0305] Step S4201: Send a MAC CE to the terminal 101, where the MAC CE includes indication information.

[0306] In some embodiments, the implementation of step S4201 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0307] In some embodiments, the MAC CE includes a MAC subheader, and the MAC subheader includes indication information.

[0308] Optionally, the MAC CE further includes a first information field, where the first information field is used to indicate at least one of the following:

[0309] Model identifier corresponding to the CSI processing model;

[0310] The cell identifier corresponding to the CSI processing model;

[0311] Function identifier corresponding to the CSI processing model.

[0312] Optionally, the MAC CE does not include the fourth information field, and the fourth information field is an information field used to indicate activation or deactivation.

[0313] In some embodiments, when the MAC CE includes indication information, the effective time of the indication information is after the first time and is separated from the first time interval by a first duration; wherein, the first time is the uplink time when the terminal sends the feedback information corresponding to the MAC CE, and the first duration includes the duration defined by the protocol and the duration configured by the network device.

[0314] Optionally, the effective time t satisfies:

[0315] t=X+Z+K Mac , where X = n + K offset +K1;

[0316] Among them, X represents the first time, Z represents the duration defined by the protocol, and K Mac , K offset K1 is the value indicated by the network device, and n represents the downlink time when the terminal receives the MAC CE.

[0317] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 b .

[0318] FIG4c is a flow chart of a method for sending indication information according to an embodiment of the present disclosure. As shown in FIG4c, an embodiment of the present disclosure relates to a method for sending indication information, which is executed by the network device 102 and includes:

[0319] Step S4301: Send DCI to terminal 101, where DCI includes indication information.

[0320] In some embodiments, the implementation of step S4301 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0321] In some embodiments, the DCI includes a second information field, and the second information field includes indication information.

[0322] Optionally, the DCI further includes a third information field, where the third information field is used to indicate an identifier corresponding to the CSI processing model, where the identifier is at least one of a model identifier, a cell identifier, or a function identifier.

[0323] Optionally, the format of the DCI is a defined DCI format, or the DCI is scrambled by a defined RNTI.

[0324] In some embodiments, when the DCI includes indication information, the effective time of the indication information is after the second duration of the second time; wherein, the second time is the downlink time corresponding to the uplink time when the terminal receives the DCI, and the second duration is the duration defined by the protocol or the duration reported by the terminal.

[0325] Optionally, the effective time t satisfies:

[0326] After (Y1+a) or the first time domain unit after (Y1+a), where

[0327] Wherein, Y1 represents the second time, a represents the second duration, and Y represents the uplink time when the terminal receives the DCI. represents a round-up operation, μ1 is a constant determined according to the SCS of the PUSCH, and μ2 is a constant determined according to the SCS of the PDCCH.

[0328] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4c.

[0329] FIG4 d is a flow chart of a method for sending indication information according to an embodiment of the present disclosure. As shown in FIG4 d , an embodiment of the present disclosure relates to a method for sending indication information, which is executed by the network device 102 and includes:

[0330] Step S4401, sending instruction information to terminal 101.

[0331] In some embodiments, the implementation of step S4401 can refer to the optional implementation of step S2101 in Figure 2a, which will not be repeated here.

[0332] Optionally, the indication information is used to instruct the terminal to activate a CSI processing model before applying an AI or ML-based CSI processing model; wherein the CSI processing model is used to perform CSI processing based on spatial domain information, frequency domain information, and time domain information.

[0333] In some embodiments, activating the CSI processing model includes: resetting the accumulated CSI information in the CSI processing model to a default value or an initial value; or resetting the accumulated CSI information based on terminal capabilities or terminal implementation.

[0334] Optionally, the accumulated CSI information is determined based on historical CSI obtained through multiple measurements.

[0335] In some embodiments, the network device sends instruction information to the terminal, including one of the following:

[0336] The network device sends a MAC CE to the terminal, where the MAC CE includes indication information; or,

[0337] The network device sends DCI to the terminal, where the DCI includes indication information.

[0338] In some embodiments, the MAC CE includes a MAC subheader, and the MAC subheader includes indication information.

[0339] Optionally, the MAC CE further includes a first information field, where the first information field is used to indicate at least one of the following:

[0340] Model identifier corresponding to the CSI processing model;

[0341] The cell identifier corresponding to the CSI processing model;

[0342] Function identifier corresponding to the CSI processing model.

[0343] Optionally, the MAC CE does not include the fourth information field, and the fourth information field is an information field used to indicate activation or deactivation.

[0344] In some embodiments, the DCI includes a second information field, and the second information field includes indication information.

[0345] Optionally, the DCI further includes a third information field, where the third information field is used to indicate an identifier corresponding to the CSI processing model, where the identifier is at least one of a model identifier, a cell identifier, or a function identifier.

[0346] Optionally, the format of the DCI is a defined DCI format, or the DCI is scrambled by a defined RNTI.

[0347] In some embodiments, when the MAC CE includes indication information, the effectiveness time of the indication information is after the first time and separated from the first time by a first duration;

[0348] The first time is the uplink time when the terminal sends feedback information corresponding to the MAC CE, and the first duration includes the duration defined by the protocol and the duration configured by the network device.

[0349] Optionally, the effective time t satisfies:

[0350] t=X+Z+K Mac , where X = n + K offset +K1;

[0351] Among them, X represents the first time, Z represents the duration defined by the protocol, and K Mac , K offset K1 is the value indicated by the network device, and n represents the downlink time when the terminal receives the MAC CE.

[0352] In some embodiments, when the DCI includes indication information, the effective time of the indication information is after the second duration of the second time;

[0353] The second time is the downlink time corresponding to the uplink time when the terminal receives the DCI, and the second duration is the duration defined by the protocol or the duration reported by the terminal.

[0354] Optionally, the effective time t satisfies:

[0355] After (Y1+a) or the first time domain unit after (Y1+a), where

[0356] Wherein, Y1 represents the second time, a represents the second duration, and Y represents the uplink time when the terminal receives the DCI. represents a round-up operation, μ1 is a constant determined according to the SCS of the PUSCH, and μ2 is a constant determined according to the SCS of the PDCCH.

[0357] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 d .

[0358] The method disclosed herein can solve the problem of reusing a model when the UE model remains unchanged but the historical information changes. To facilitate understanding of the embodiments of the present disclosure, some specific examples are listed below:

[0359] Example 1:

[0360] The UE reactivates the AI ​​CSI sft compression model according to the instruction of the base station.

[0361] Optionally, the indication of the base station may correspond to the indication information of the aforementioned embodiment.

[0362] Example 2:

[0363] Reactivating the AI ​​CSI sft compression model at least includes resetting the accumulated CSI information of the previous time unit temporarily stored in the model.

[0364] Optionally, the reset behavior may be resetting to all 0s, or resetting to a specific initial value, or the reset behavior may depend on the implementation of the UE.

[0365] Example 3:

[0366] The base station's instruction is indicated through MAC CE signaling. When the UE receives the MAC CE signaling, the UE reactivates the AI ​​CSI SFT compression model.

[0367] In one embodiment, the MAC CE may contain only a MAC sub-header, without specific content. A specific logical channel identification (LCID) is used to distinguish the MAC CE. As shown in Figure 2c, the MAC CE contains only a MAC sub-header. The content of the MAC sub-header may include an R bit and an LCID. The LCID indicates that the MAC CE is used to indicate model reactivation.

[0368] In one embodiment, the MAC CE includes at least one of a model ID, a cell ID, and a functionality ID. As shown in Figure 2d, the MAC CE includes a MAC sub-header and MAC CE content. The MAC sub-header may include an R bit and an LCID. The LCID indicates that the MAC CE is used to indicate the reactivation of the model. The MAC CE includes a cell ID and a functionality ID. The cell ID indicates the cell where the model to be reactivated is located, and the functionality ID indicates the functionality ID corresponding to the model to be reactivated.

[0369] Optionally, functionality ID can also be replaced with model ID; model ID indicates the ID of the model to be reactivated.

[0370] Optionally, the MAC CE may also include functionality ID and model ID.

[0371] In one embodiment, unlike other MAC CE information for activation or deactivation, this MAC CE does not include A / D information, because the UE has only one behavior after receiving this information, that is, reactivating the AI ​​CSI sft compression model.

[0372] In different embodiments of Example 3, there is no limit on the number of bits of different information fields (such as LCID, R, cell ID, etc.) in the MAC CE. If it is less than an integer multiple of 8 bits, it can be padded with R bits.

[0373] Example 4:

[0374] The base station's instruction is indicated through DCI signaling. When the UE receives the DCI signaling containing the instruction, the AI ​​CSI SFT compression model is reactivated.

[0375] Optionally, this information is represented by a field in the DCI. When the field is 1, it indicates that the UE wants to reactivate the model.

[0376] Optionally, this information is represented by two fields in the DCI: an enable field, which, when set to 1, indicates that the UE wants to reactivate the model; and an ID field, which is used to identify the model ID to be reactivated. For example, this ID can be either a functionality ID or a model ID.

[0377] In one embodiment, the DCI may be a specific DCI format, such as DCI format 2_x.

[0378] In one embodiment, the DCI may be a DCI scrambled by a special RNTI, such as AI-RNTI.

[0379] Example 5:

[0380] The UE determines the effective time of the reactivation signaling.

[0381] Optionally, the reactivation signaling is MAC CE, and the slot where the UE feedbacks the HARQ-ACK information containing the MAC CE is uplink slot #X, such as slot #X = slot n + Koffset + K1, where slot n is the slot where the UE receives the PDSCH containing the MAC CE. The effective time is uplink slot #X + Kmac + Z, where Z is a predefined time length, for example Kmac is the value configured by the base station.

[0382] Optionally, if the reactivation signaling is DCI, and the slot where the UE receives the DCI is downlink slot#Y, then the effective time is uplink slot#Z, and slot#Z is no earlier than The first slot of , a is a predefined value or a is a value reported by the UE capability.

[0383] Example 6:

[0384] The method in this example may include the following steps: Step 1 to Step 3:

[0385] Step 1. The base station configures the CSI-AI-model configuration for the UE, such as CSI-AI-model #1.

[0386] Step 2. The base station reactivates CSI-AI-model #1 using MAC CE in slot #n. The uplink and downlink SCSs are the same.

[0387] Step 3. The UE feeds back the HARQ-ACK information of the MAC CE in uplink slot #X = slot n + Koffset + K1. Then the validity time of the MAC CE is uplink slot #X + Kmac + Z, where Z is a predefined time length (e.g. ), Kmac is the value configured by the base station.

[0388] 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.

[0389] 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.

[0390] 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.

[0391] Figure 5a is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in Figure 5a, terminal 5100 may include at least one of a transceiver module 5101 and a processing module 5102. In some embodiments, transceiver module 5101 is configured to receive indication information sent by a network device, instructing the terminal to activate a channel state information (CSI) processing model based on artificial intelligence (AI) or machine learning (ML) before applying the CSI processing model; wherein the CSI processing model is configured to perform CSI processing based on spatial, frequency, and time domain information.

[0392] Optionally, the transceiver module 5101 is configured to execute at least one of the communication steps of sending and / or receiving performed by the terminal 101 in any of the above methods, which are not described in detail here. Optionally, the processing module 5102 is configured to execute at least one of the other steps performed by the terminal 101 in any of the above methods, which are not described in detail here.

[0393] Figure 5b is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in Figure 5b, network device 5200 may include at least one of a transceiver module 5201 and a processing module 5202. In some embodiments, transceiver module 5201 is configured to send an instruction to the terminal, instructing the terminal to activate an AI-based or ML-based CSI processing model before applying the CSI processing model; wherein the CSI processing model is configured to perform CSI processing based on spatial, frequency, and time domain information.

[0394] Optionally, the transceiver module 5201 is configured to execute 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 are not described in detail here. Optionally, the processing module 5202 is configured to execute at least one of the other steps performed by the network device 102 in any of the above methods, which are not described in detail here.

[0395] 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.

[0396] 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.

[0397] Figure 6a is a schematic diagram of the structure of a communication device 6100 proposed in an embodiment of the present disclosure. Communication device 6100 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 implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal implementing any of the above methods. Communication device 6100 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.

[0398] As shown in Figure 6a, the communication device 6100 includes one or more processors 6101. The processor 6101 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 the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to perform any of the above methods. Optionally, one or more processors 6101 are used to call instructions to enable the communication device 6100 to perform any of the above methods.

[0399] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method, and the processor 6101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface 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.

[0400] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Alternatively, all or part of the memories 6103 may be located outside the communication device 6100. In alternative embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and may be configured to receive data from the memories 6103 or other devices, or to send data to the memories 6103 or other devices. For example, the interface circuits 6104 may read data stored in the memories 6103 and send the data to the processor 6101.

[0401] The communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. 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.; (6) others, etc.

[0402] FIG6b is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6b , but the present disclosure is not limited thereto.

[0403] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0404] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Alternatively, all or part of memory 6203 may be located external to chip 6200. Optionally, interface circuit 6202 is connected to memory 6203 and may be used to receive data from memory 6203 or other devices, or may be used to send data to memory 6203 or other devices. For example, interface circuit 6202 may read data stored in memory 6203 and send the data to processor 6201.

[0405] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data exchange between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0406] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0407] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 6100, the communication device 6100 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 transient storage medium.

[0408] The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0409] 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

[0410] The terminal receives the indication information sent by the network device to learn whether the CSI processing model needs to be activated, so that the terminal can activate the CSI processing model at an appropriate time based on the indication of the network device to ensure the accuracy of the applied CSI processing model.

Claims

1. A method for receiving indication information, the method comprises: A terminal receives indication information sent by a network device, where the indication information is used to instruct the terminal to activate a channel state information (CSI) processing model before applying a CSI processing model based on artificial intelligence (AI) or machine learning (ML); wherein, the CSI processing model is used to perform CSI processing according to spatial domain information, frequency domain information, and time domain information.

2. The method according to claim 1, wherein, the terminal receiving the indication information sent by the network device includes one of the following: The terminal receives a media access control layer control element (MAC CE) sent by the network device, and the MAC CE includes the indication information; or, The terminal receives downlink control information (DCI) sent by the network device, and the DCI includes the indication information.

3. The method according to claim 2, wherein, the MAC CE includes a MAC sub-header, and the MAC sub-header includes the indication information.

4. The method according to claim 3, wherein, the MAC CE further includes a first information field, and the first information field is used to indicate at least one of the following: A model identifier corresponding to the CSI processing model; A cell identifier corresponding to the CSI processing model; A function identifier corresponding to the CSI processing model.

5. The method according to claim 2, wherein, the DCI includes a second information field, and the second information field includes the indication information.

6. The method according to claim 5, wherein, the DCI further includes a third information field, and the third information field is used to indicate an identifier corresponding to the CSI processing model, where the identifier is at least one of a model identifier, a cell identifier, or a function identifier.

7. The method according to claim 2, 5, or 6, wherein, the format of the DCI is a defined DCI format, or the DCI is scrambled by a defined radio network temporary identifier (RNTI).

8. The method according to any one of claims 2 to 4, wherein, when the MAC CE includes the indication information, the effective time of the indication information is after a first time and has a first duration from the first time; wherein, the first time is the uplink time when the terminal sends feedback information corresponding to the MAC CE, and the first duration includes a duration defined by the protocol and a duration configured by the network device.

9. The method according to claim 8, wherein, The effective time t satisfies: t = X + Z + K Mac , where X = n + K offset + K 1 ; Wherein, X represents the first time, Z represents the duration defined by the protocol, K Mac , K offset and K 1 are values indicated for the network device, and n represents the downlink time when the terminal receives the MAC CE.

10. The method according to claim 2 or any one of claims 5 to 7, wherein, when the DCI includes the indication information, the effective time of the indication information is after a second duration of a second time; wherein, the second time is the downlink time corresponding to the uplink time when the terminal receives the DCI, and the second duration is a duration defined by the protocol or a duration reported by the terminal.

11. The method according to claim 10, wherein, the effective time t satisfies: After (Y1 + a) or the first time domain unit after (Y1 + a), where, Wherein, Y1 represents the second time, a represents the second duration, and Y represents the uplink time when the terminal receives the DCI. denotes the ceiling operation, μ1 is a constant determined according to the subcarrier spacing (SCS) of the physical uplink shared channel (PUSCH), and μ2 is a constant determined according to the SCS of the physical downlink control channel (PDCCH).

12. The method according to any one of claims 1 to 11, wherein, activating the CSI processing model includes: resetting the accumulated CSI information in the CSI processing model to a default value or an initial value; or resetting the accumulated CSI information based on the terminal capabilities or terminal implementation.

13. The method according to claim 12, wherein, the accumulated CSI information is determined according to historical CSI obtained from multiple measurements.

14. A method for sending indication information, the method comprises: a network device sending indication information to a terminal, the indication information being used to instruct the terminal to activate the CSI processing model before applying an AI- or ML-based CSI processing model; wherein the CSI processing model is used to perform CSI processing according to spatial domain information, frequency domain information, and time domain information.

15. The method according to claim 14, wherein, the network device sending the indication information to the terminal includes one of the following: the network device sending a MAC CE to the terminal, the MAC CE including the indication information; or, the network device sending a DCI to the terminal, the DCI including the indication information.

16. The method according to claim 15, wherein, the MAC CE includes a MAC sub-header, and the MAC sub-header includes the indication information.

17. The method according to claim 16, wherein, the MAC CE further includes a first information field, and the first information field is used to indicate at least one of the following: the model identifier corresponding to the CSI processing model; the cell identifier corresponding to the CSI processing model; the function identifier corresponding to the CSI processing model.

18. The method according to claim 15, wherein, the DCI includes a second information field, and the second information field includes the indication information.

19. The method according to claim 18, wherein, the DCI further includes a third information field, and the third information field is used to indicate the identifier corresponding to the CSI processing model, where the identifier is at least one of a model identifier, a cell identifier, or a function identifier.

20. The method according to claim 15, 18, or 19, wherein, the format of the DCI is a defined DCI format, or the DCI is scrambled by a defined RNTI.

21. The method according to any one of claims 15 to 17, wherein, when the MAC CE includes the indication information, the effective time of the indication information is after a first time and has a first duration from the first time; wherein the first time is the uplink time when the terminal sends feedback information corresponding to the MAC CE, and the first duration includes a duration defined by the protocol and a duration configured by the network device.

22. The method according to claim 21, wherein, The effective time t satisfies: t = X + Z + K Mac , where X = n + K offset + K 1 ; Wherein, X represents the first time, Z represents the duration defined by the protocol, K Mac , K offset and K 1 are values indicated for the network device, and n represents the downlink time when the terminal receives the MAC CE.

23. The method according to claim 15 or 18 to 20, wherein, When the DCI includes the indication information, the effective time of the indication information is after a second duration at a second time; wherein, the second time is the downlink time corresponding to the uplink time when the terminal receives the DCI, and the second duration is a duration defined by the protocol or a duration reported by the terminal.

24. The method according to claim 23, wherein, the effective time t satisfies: After (Y1 + a) or the first time domain unit after (Y1 + a), where, Wherein, Y1 represents the second time, a represents the second duration, and Y represents the uplink time when the terminal receives the DCI. represents the ceiling operation, μ1 is a constant determined according to the SCS of the PUSCH, and μ2 is a constant determined according to the SCS of the PDCCH.

25. The method according to any one of claims 14 to 24, wherein, activating the CSI processing model includes: resetting the accumulated CSI information in the CSI processing model to a default value or an initial value; or resetting the accumulated CSI information based on terminal capabilities or terminal implementation.

26. The method according to claim 25, wherein, the accumulated CSI information is determined according to historical CSI obtained by the terminal through multiple measurements.

27. A terminal, comprising: a transceiver module, configured to receive indication information sent by a network device, the indication information being used to instruct the terminal to activate the CSI processing model before applying a channel state information CSI processing model based on artificial intelligence AI or machine learning ML; wherein, the CSI processing model is used to perform CSI processing according to spatial domain information, frequency domain information, and time domain information.

28. A network device, comprising: a transceiver module, configured to send indication information to a terminal, the indication information being used to instruct the terminal to activate the CSI processing model before applying an AI or ML-based CSI processing model; wherein, the CSI processing model is used to perform CSI processing according to spatial domain information, frequency domain information, and time domain information.

29. A terminal, comprising: one or more processors; wherein, the terminal is configured to execute the method according to any one of claims 1 to 13.

30. A network device, comprising: one or more processors; wherein, the network device is configured to execute the method according to any one of claims 14 to 26.

31. A communication system, comprising a terminal and a network device, wherein, the terminal is configured to implement the method according to any one of claims 1 to 13; the network device is configured to implement the method according to any one of claims 14 to 26.

32. A storage medium, the storage medium stores instructions, wherein, when the instructions run on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 13 or any one of claims 14 to 26.

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