CSI reporting method, information sending method, device, equipment and medium

Abstract

The present application discloses a CSI reporting method, an information sending method, an apparatus, a device and a medium, and relates to the field of mobile communications. The method includes: the terminal determines that a trigger condition is met according to a first parameter group and a second parameter group, and adjusts the CSI reporting method of the terminal; the first parameter group is obtained based on the measurement result of the downlink reference signal measured by the terminal, and the second parameter group is obtained based on the scheduling parameter group of the network device. The scheme provided by the present application determines that the trigger condition is met based on the measured parameter group and the scheduling parameter group of the network device, and then determines that the currently used CSI reporting method does not meet the requirements, and adjusts the CSI reporting method to reduce the error between the decompressed CSI and the original CSI, ensure the accuracy of the decompressed CSI, and then ensure the reliability of communication.

Description

Technical Field

[0001] The present application relates to the field of mobile communications, and in particular to a CSI reporting method, information sending method, device, equipment and medium. Background Art

[0002] In a mobile communication system, a network device sends a downlink reference signal to a terminal. The terminal receives the downlink reference signal sent by the network device and measures the downlink reference signal to report the measured CSI (Channel State Information) to the network device.

[0003] The terminal measures the downlink reference signal to obtain CSI, and when reporting the CSI, the terminal compresses the CSI and sends the compressed CSI to the network device, and the network device decompresses the compressed CSI to obtain the CSI.

[0004] However, during the CSI reporting process, the compression and decompression process will cause data loss, resulting in errors between the decompressed CSI and the original CSI. The accuracy of the decompressed CSI cannot be guaranteed, which in turn leads to poor communication reliability between the terminal and the network device. Summary of the invention

[0005] The embodiments of the present application provide a CSI reporting method, information sending method, device, equipment and medium, which reduce the error between the decompressed CSI and the original CSI, ensure the accuracy of the decompressed CSI, and thus ensure the reliability of communication. The technical solution is as follows:

[0006] According to one aspect of the present application, a CSI reporting method is provided, the method being executed by a terminal, the method comprising:

[0007] Determining that a trigger condition is met according to the first parameter group and the second parameter group, adjusting a CSI reporting mode of the terminal;

[0008] The first parameter group is obtained based on a measurement result of a downlink reference signal measured by the terminal, and the second parameter group is obtained based on a scheduling parameter group of a network device.

[0009] According to one aspect of the present application, a method for sending information is provided, the method being executed by a network device, the method comprising:

[0010] receiving request information sent by a terminal, where the request information instructs the terminal to adjust the CSI reporting mode;

[0011] In response to the request information, a response information is sent to the terminal, and the terminal is used to fall back to a default CSI reporting mode or update the CSI reporting mode in response to the response information.

[0012] According to one aspect of the present application, a CSI reporting device is provided, the device comprising:

[0013] An adjustment module, configured to determine that a trigger condition is met according to the first parameter group and the second parameter group, and adjust a CSI reporting mode of the terminal;

[0014] The first parameter group is obtained based on a measurement result of a downlink reference signal measured by the terminal, and the second parameter group is obtained based on a scheduling parameter group of a network device.

[0015] According to one aspect of the present application, there is provided an information sending device, the device comprising:

[0016] A receiving module, configured to receive request information sent by a terminal, wherein the request information instructs the terminal to adjust the CSI reporting mode;

[0017] A sending module is used to send response information to the terminal in response to the request information, and the terminal is used to fall back to a default CSI reporting method in response to the response information, or to update the CSI reporting method.

[0018] According to one aspect of the present application, a terminal is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the CSI reporting method as described above.

[0019] According to one aspect of the present application, a network device is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the information sending method as described above.

[0020] According to one aspect of the present application, a computer-readable storage medium is provided, in which an executable program code is stored. The executable program code is loaded and executed by a processor to implement a CSI reporting method or an information sending method as described above.

[0021] According to one aspect of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on a terminal or a network device, it is used to implement the CSI reporting method or information sending method as described above.

[0022] According to one aspect of the present application, a computer program product is provided. When the computer program product is executed by a processor of a terminal or a network device, it is used to implement the CSI reporting method or information sending method of the above aspect.

[0023] In the solution provided in the embodiment of the present application, the terminal determines that the trigger condition is met based on the measured parameter group and the scheduling parameter group of the network device, and then determines that the currently used CSI reporting method does not meet the requirements, and adjusts the CSI reporting method to reduce the error between the decompressed CSI and the original CSI, thereby ensuring the accuracy of the decompressed CSI and thus ensuring the reliability of communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A block diagram of a communication system provided by an exemplary embodiment of the present application is shown;

[0026] Figure 2 A flowchart of a CSI reporting method provided by an exemplary embodiment of the present application is shown;

[0027] Figure 3 A flowchart of another CSI reporting method provided by an exemplary embodiment of the present application is shown;

[0028] Figure 4 A flowchart of another CSI reporting method provided by an exemplary embodiment of the present application is shown;

[0029] Figure 5 A flowchart of a data processing method provided by an exemplary embodiment of the present application is shown;

[0030] Figure 6 A block diagram of a CSI reporting device provided by an exemplary embodiment of the present application is shown;

[0031] Figure 7 A block diagram of another CSI reporting device provided by an exemplary embodiment of the present application is shown;

[0032] Figure 8 A block diagram of an information sending device provided by an exemplary embodiment of the present application is shown;

[0033] Fig. 9A block diagram of another information sending device provided by an exemplary embodiment of the present application is shown;

[0034] Fig.10 A schematic diagram of the structure of a communication device provided by an exemplary embodiment of the present application is shown. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0036] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. Unless otherwise indicated, when the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0037] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.

[0038] It should be understood that, although the terms first, second, third, etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, for example, the word "if" used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0039] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions.

[0040] The following is an explanation of the application scenarios of this application:

[0041] Figure 1A block diagram of a communication system provided by an exemplary embodiment of the present application is shown. The communication system may include: a terminal 10 and a network device 20.

[0042] The number of terminals 10 is usually multiple, and one or more terminals 10 may be distributed in a cell managed by each network device 20. The terminal 10 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE), mobile stations (MS), etc. For the convenience of description, in the embodiments of the present application, the above-mentioned devices are collectively referred to as terminals.

[0043] The network device 20 is a device deployed in the access network to provide wireless communication functions for the terminal 10. For the convenience of description, in the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for the terminal 10 are collectively referred to as network devices. A connection can be established between the network device 20 and the terminal 10 through an air interface, so that communication is performed through the connection, including the interaction of signaling and data. There can be multiple network devices 20, and two adjacent network devices 20 can also communicate in a wired or wireless manner. The terminal 10 can switch between different network devices 20, that is, establish connections with different network devices 20.

[0044] The network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems using different wireless access technologies, the names of devices with network device functions may be different. For example, in a 5G NR (New Radio) system, it is called gNodeB or gNB. With the evolution of communication technology, the name of "network device" may change.

[0045] Below, the method of reporting CSI based on the AI ​​(Artificial Intelligence) model involved in this application is explained.

[0046] Among them, the AI ​​model used for reporting CSI is a "two-sided" structure, that is, the AI ​​model includes a compression model and a decompression model. The compression model is located on the terminal side, and the decompression model is located on the network device side. The compression model and the decompression model correspond to each other. The parameters compressed by the compression model can be decompressed by the decompression model.

[0047] The following describes the process of CSI reporting by the terminal in combination with the compression model and decompression model included in the AI ​​model: the network device sends a downlink reference signal to the terminal, the terminal receives the downlink reference signal, measures the downlink reference signal to obtain CSI, compresses the CSI based on the compression model stored in the terminal and feeds it back to the network device, the network device receives the compressed CSI, decompresses the compressed CSI based on the decompression model stored in the network device, and obtains the decompressed CSI. The AI ​​model is used to realize compression and decompression of the CSI, which reduces the amount of transmitted data during transmission, thereby reducing the signaling overhead of CSI reporting.

[0048] Figure 2 A flowchart of a CSI reporting method provided by an exemplary embodiment of the present application is shown, which can be applied to the following exemplary embodiments: Figure 1 In the terminal and network device shown, the method includes at least part of the following contents:

[0049] Step 201: The terminal determines that a trigger condition is met according to the first parameter group and the second parameter group, and adjusts the CSI reporting mode of the terminal.

[0050] The trigger condition refers to the condition that the terminal needs to adjust the CSI reporting mode, which can also be understood as the condition that the current CSI reporting mode of the terminal does not meet the reporting requirements. The CSI reporting mode refers to the mode in which the terminal reports the measurement result after measuring the downlink reference signal.

[0051] The first parameter group is obtained based on a measurement result of a downlink reference signal measured by a terminal, and the second parameter group is obtained based on a scheduling parameter group of a network device.

[0052] In an embodiment of the present application, the network device sends a downlink reference signal to the terminal. The terminal receives the downlink reference signal sent by the network device, measures the downlink reference signal to obtain CSI, and determines the first parameter group according to the CSI.

[0053] In addition, the terminal will also compress the CSI and send the compressed CSI to the network device. The network device decompresses the received compressed CSI to obtain the decompressed CSI, determines the scheduling parameter group according to the decompressed CSI, and provides the terminal scheduling parameters based on the scheduling parameter group. The terminal determines the second parameter group based on the scheduling parameter group.

[0054] In the embodiment of the present application, if the terminal determines that the first parameter group and the second parameter group meet the trigger condition, it means that the terminal determines that the CSI data after compression and decompression is lost, and the CSI reporting method needs to be adjusted.

[0055] In some embodiments, the downlink reference signal may be a CSI-RS (Channel State Information-Reference Signal), or an SSB (Synchronization Signal Block), or other types of reference signals, which are not limited in the embodiments of the present application.

[0056] In some embodiments, the first parameter group includes one or more parameters, and the second parameter group also includes one or more parameters, which is not limited in the embodiments of the present application.

[0057] In addition, the first parameter group and the second parameter group include the following two situations:

[0058] The first type: the first parameter group is a parameter group obtained by the terminal measuring a downlink reference signal, and the second parameter group is a parameter group determined according to the scheduling parameter group and matching the first parameter group.

[0059] In an embodiment of the present application, a network device sends a downlink reference signal to a terminal, the terminal receives the downlink reference signal, measures the downlink reference signal to obtain CSI, and the terminal determines the CSI as a first parameter group. The terminal also needs to compress the CSI of the downlink reference signal and send the compressed CSI to the network device. The network device receives the compressed CSI, decompresses the compressed CSI, determines a scheduling parameter group based on the decompressed CSI, and then schedules the terminal based on the scheduling parameter group. At this time, the terminal has determined the first parameter group. In order to determine whether the trigger condition is met based on the first parameter group and the second parameter group, the terminal needs to determine a second parameter group that matches the first parameter group based on the scheduling parameter group. Therefore, the terminal can determine whether the trigger condition is met based on the known first parameter group and second parameter group. If it is determined that the trigger condition is met, the CSI reporting method is adjusted.

[0060] The second parameter group that matches the first parameter group means that the first parameter group and the second parameter group include parameters of the same type, so that the terminal can compare the first parameter group and the second parameter group.

[0061] For example, the first parameter group includes CQI (Channel Quality Indicator), and the scheduling parameter group of the network device includes MCS (Modulation and Coding Scheme). The terminal needs to determine a matching CQI as the second parameter group based on the MCS, and then the terminal can compare the CQI in the first parameter group and the second parameter group.

[0062] The second type: the second parameter group is a scheduling parameter group, and the first parameter group is a parameter group determined according to a measurement result and matching the second parameter group.

[0063] The scheduling parameter group is used to indicate the scheduling information for the data channel, including but not limited to the time-frequency domain resource information and modulation and coding scheme of the data channel.

[0064] In an embodiment of the present application, a network device sends a downlink reference signal to a terminal. The terminal receives the downlink reference signal, measures the downlink reference signal, and obtains the CSI of the downlink reference signal. The terminal also needs to compress the CSI of the downlink reference signal and send the compressed CSI to the network device. The network device receives the compressed CSI, decompresses the compressed CSI, determines a scheduling parameter group according to the decompressed CSI, schedules the terminal according to the scheduling parameter group, and the terminal determines the scheduling parameter group as the second parameter group. In order to determine whether the trigger condition is met according to the first parameter group and the second parameter group, the terminal needs to determine the first parameter group that matches the second parameter group according to the measured CSI. Therefore, the terminal can determine whether the trigger condition is met according to the known first parameter group and the second parameter group. If it is determined that the trigger condition is met, the CSI reporting method is adjusted.

[0065] The first parameter group that matches the second parameter group means that the first parameter group and the second parameter group include parameters of the same type, so that the terminal can compare the first parameter group and the second parameter group.

[0066] For example, the scheduling parameter group of the network device includes MCS, that is, the second parameter group includes MCS, then the terminal needs to determine the matching MCS as the first parameter group based on the CQI included in the measured CSI, and then the terminal can compare the MCS in the first parameter group and the second parameter group.

[0067] In some embodiments, the CSI reporting method includes at least one of the following:

[0068] (1) CSI reporting amount.

[0069] Among them, the CSI reporting amount refers to the parameters reported by the terminal. For example, the CSI reporting amount includes CQI, PMI (Precoding Matrix Indicator), coding feature vector, coding full channel information or other parameters, which are not limited in the embodiments of the present application. The coding feature vector refers to the information used for reporting after the terminal compresses the channel feature vector, and the coding full channel information refers to the information used for reporting after the terminal compresses the full channel information.

[0070] (2) CSI reporting configuration.

[0071] The CSI reporting configuration refers to a configuration for the terminal to report CSI, for example, including CSI reporting configuration 1, CSI reporting configuration 2, CSI reporting configuration 3 or other reporting configurations.

[0072] (3) Compression model: The compression model is used to compress the measurement result of the measured downlink reference signal.

[0073] In an embodiment of the present application, when a terminal reports CSI to a network device, a compression model may be used to compress the CSI so as to report the compressed CSI to the network device, thereby saving data volume and further saving signaling overhead.

[0074] Optionally, the compression model is a convolutional neural network model, a recursive neural network model or other types of models, which is not limited in the embodiments of the present application.

[0075] In some embodiments, the first parameter group and the second parameter group each include at least one of the following: MCS; CQI.

[0076] That is to say, the first parameter group and the second parameter group in the embodiment of the present application are any of the following situations:

[0077] The first one: MCS.

[0078] The second type: CQI.

[0079] The third type: MCS and CQI.

[0080] It should be noted that, in the embodiment of the present application, the first parameter group and the second parameter group include at least one parameter of the same type, so that the terminal determines whether the trigger condition is met according to the first parameter group and the second parameter group.

[0081] In the solution provided in the embodiment of the present application, the terminal determines that the trigger condition is met based on the measured parameter group and the scheduling parameter group of the network device, and then determines that the currently used CSI reporting method does not meet the requirements, and adjusts the CSI reporting method to reduce the error between the decompressed CSI and the original CSI, thereby ensuring the accuracy of the decompressed CSI and thus ensuring the reliability of communication.

[0082] Figure 2 The illustrated embodiment illustrates that the terminal can adjust the CSI reporting method of the terminal. Specifically, the terminal can perform the adjustment in any of the following ways.

[0083] The first method: fall back to the default CSI reporting method.

[0084] The default CSI reporting mode refers to the CSI reporting mode pre-saved by the terminal.

[0085] In some embodiments, the default CSI reporting mode is a CSI reporting mode pre-stored by the terminal. Alternatively, the default CSI reporting mode is a CSI reporting mode pre-configured by the network device for the terminal.

[0086] In an embodiment of the present application, if the terminal determines that the CSI reporting method needs to be adjusted, the terminal can fall back to the default CSI reporting method and use the default CSI reporting method for reporting.

[0087] The second method: updating the CSI reporting method.

[0088] In the embodiment of the present application, if the terminal determines that the CSI reporting method needs to be adjusted, the terminal may update the CSI reporting method to change the CSI reporting method in which the terminal reports CSI.

[0089] In some embodiments, the CSI reporting method may be updated in various ways:

[0090] (1) Update the CSI reporting amount.

[0091] In the embodiment of the present application, updating the CSI reporting method is actually updating the CSI reporting amount, which can also be understood as updating the parameters included in the CSI that the terminal needs to report.

[0092] For example, the CSI reporting amount of the current CSI reporting mode of the terminal includes CQI, and after the CSI reporting mode is updated, the updated CSI reporting amount includes CQI and PMI.

[0093] It should be noted that the CSI reporting method in the embodiment of the present application includes the CSI reporting amount.

[0094] (2) Updating a compression model, where the compression model is used to compress a measurement result of a measured downlink reference signal.

[0095] Among them, the compression model is a model pre-stored by the terminal, or a model configured by the network device for the terminal, or a model configured in other ways, which is not limited in the embodiments of the present application.

[0096] In the embodiment of the present application, updating the CSI reporting method is actually updating the compression model.

[0097] In some embodiments, updating the compression model is updating the parameters of the compression model used by the terminal.

[0098] Among them, using different parameters of the compression model will affect the result of the terminal compressing CSI using the compression model. Therefore, updating the parameters of the compression model can adjust the compression result of the terminal on CSI, and then adjust the gap between the first parameter group and the second parameter group.

[0099] In other embodiments, updating the compression model is updating the compression model used by the terminal.

[0100] Optionally, the compression model is updated by updating the identifier of the compression model. For example, the terminal stores multiple compression models, including compression model 1, compression model 2 and compression model 3. If the compression model currently used by the terminal is compression model 1, the terminal can be updated to use compression model 2 by using the identifier of the compression model.

[0101] In other embodiments, updating the compression model is achieved by updating the compression model through a configuration bound to the compression model.

[0102] Optionally, the compression model is bound to a corresponding configuration, and the compression model is updated by updating the configuration.

[0103] For example, the compression model is bound to the CSI reporting configuration identifier, and the compression model is updated by updating the CSI reporting configuration identifier. For example, a terminal stores multiple compression models, including compression model 1, compression model 2, and compression model 3. If the compression model currently used by the terminal is compression model 1 bound to CSI reporting configuration identifier 1, the terminal can be updated to use compression model 2 through CSI reporting configuration identifier 2.

[0104] (3) Update the CSI reporting configuration.

[0105] In the embodiment of the present application, updating the CSI reporting method is actually updating the CSI reporting configuration, which can also be understood as updating the CSI reporting configuration used by the terminal.

[0106] For example, the CSI reporting configuration currently used by the terminal is CSI reporting configuration 1. After the CSI reporting configuration is updated, the terminal is adjusted to use CSI reporting configuration 2.

[0107] In the solution provided in the embodiment of the present application, the terminal can fall back to the default CSI reporting method, or update the CSI reporting method, thereby ensuring the reliability of the terminal adjusting the CSI reporting method, thereby improving the accuracy of the terminal reporting CSI.

[0108] Based on the above embodiment, the terminal needs to send a request message to the network device and then execute the step of falling back to the default CSI reporting mode.

[0109] Figure 3 A flowchart of another CSI reporting method provided by an exemplary embodiment of the present application is shown, which can be applied to Figure 1 In the terminal and network device shown, the method includes at least part of the following contents:

[0110] Step 301: The terminal sends a request message to a network device, where the request message instructs the terminal to adjust the CSI reporting method.

[0111] In an embodiment of the present application, if the terminal determines that the CSI reporting method needs to be adjusted, the terminal first sends a request message to the network device, and informs the network device through the request message that the terminal needs to adjust the CSI reporting method.

[0112] Step 302: The terminal executes the step of falling back to the default CSI reporting mode.

[0113] In the embodiment of the present application, after the terminal sends the request information to the network device, it can directly fall back to the default CSI reporting method. It can also be understood that the terminal does not need to receive the task information returned by the network device. The terminal can automatically perform the step of falling back to the default CSI reporting method after sending the request information.

[0114] In some embodiments, the terminal sends a request message to the network device, and after a first target duration of the terminal sending the request message to the network device, the terminal executes a step of falling back to a default CSI reporting method.

[0115] The first target duration is any one of X time slots, X symbols or X ms (milliseconds).

[0116] For example, the terminal sends a request message in uplink slot (time slot) m, and the terminal can report CSI in the default CSI reporting mode starting from uplink slot m+X+1. The terminal uses the default CSI reporting mode for CSI reporting after slot m+X.

[0117] In the solution provided in the embodiment of the present application, the terminal sends a request message to the network device to inform the network device through the request message that the terminal needs to adjust the CSI reporting method, thereby improving the reliability of adjusting the CSI reporting method.

[0118] Figure 2The illustrated embodiment illustrates that the terminal adjusts the CSI reporting method by executing step 201. In another embodiment, the terminal continues to obtain the first parameter group and the second parameter group using the adjusted CSI reporting method, and then determines whether the trigger condition is met based on the first parameter group and the second parameter group, and then determines whether the CSI reporting method needs to be adjusted.

[0119] After step 201, after the terminal adjusts the CSI reporting mode, the step of determining that the trigger condition is satisfied according to the first parameter group and the second parameter group and adjusting the CSI reporting mode of the terminal is continued.

[0120] In an embodiment of the present application, after the terminal adjusts the CSI reporting method, it continues to report CSI using the adjusted CSI reporting method, and continues to determine whether the trigger condition is met based on the first parameter group and the second parameter group. If it is determined that the trigger condition is met, the CSI reporting method of the terminal continues to be adjusted. If it is determined that the trigger condition is not met, the current CSI reporting method is guaranteed to be used for CSI reporting.

[0121] It should be noted that if the adjusted CSI reporting mode of the terminal is to fall back to the default CSI reporting mode, and it is still determined that the trigger condition is still not met, a request message is sent to the network device to request the network device to adjust the CSI reporting mode of the terminal.

[0122] Alternatively, if the adjusted CSI reporting method of the terminal is to fall back to the default CSI reporting method, and it is still determined that the trigger condition is still not met, stop using the current CSI reporting method for CSI reporting, and stop executing the step of determining whether the trigger condition is met according to the first parameter group and the second parameter group.

[0123] In addition, if the adjusted CSI reporting mode of the terminal is an updated CSI reporting mode, and it is determined that the triggering condition is still not met, the current CSI reporting mode continues to be updated.

[0124] In the solution provided in the embodiment of the present application, the terminal continuously detects the relationship between the first parameter group and the second parameter group to determine whether the current CSI reporting method is appropriate, and then continuously adjusts the CSI reporting method to ensure the accuracy of the adjusted CSI reporting method, thereby ensuring the reliability of communication.

[0125] Figure 4 A flowchart of another CSI reporting method provided by an exemplary embodiment of the present application is shown, which can be applied to Figure 1 In the terminal and network device shown, the method includes at least part of the following contents:

[0126] Step 401: The terminal sends a request message to a network device, where the request message instructs the terminal to adjust the CSI reporting method.

[0127] Step 402: The network device receives request information sent by the terminal, where the request information instructs the terminal to adjust the CSI reporting method.

[0128] In an embodiment of the present application, if the terminal determines that the CSI reporting method needs to be adjusted, the terminal first sends a request message to the network device, and informs the network device through the request message that the terminal needs to adjust the CSI reporting method. The network device receives the request information sent by the terminal and can determine that the terminal needs to adjust the CSI reporting method.

[0129] Step 403: the network device sends a response message to the terminal in response to the request message, and the terminal is used to fall back to the default CSI reporting mode or update the CSI reporting mode in response to the response message.

[0130] In an embodiment of the present application, after the network device receives the request information sent by the terminal, it can instruct the terminal to execute the step of adjusting the CSI reporting method through the response information, and instruct the terminal through the response information whether to execute the step of falling back to the default CSI reporting method or to execute the step of updating the CSI reporting method.

[0131] Step 404: The terminal receives response information sent by the network device. The response information is sent by the network device in response to the request information. The request information instructs the terminal to adjust the CSI reporting method.

[0132] Step 405: In response to the response information, the terminal executes a step of returning to a default CSI reporting mode, or executes a step of updating the CSI reporting mode.

[0133] In an embodiment of the present application, if the response information instructs the terminal to execute the step of falling back to the default CSI reporting method, the terminal responds to the response information and falls back to the default CSI reporting method; or, if the response information instructs the terminal to execute the step of updating the CSI reporting method, the terminal responds to the response information and updates the CSI reporting method.

[0134] In some embodiments, the response information includes DCI (Downlink control information), MAC CE (Media Access Control Control Element), RRC (Radio Resource Control) or other information carrying update information, which is not limited to the embodiments of the present application.

[0135] In some embodiments, the terminal receives the response information sent by the network device, and after the terminal receives the second target duration of the response information sent by the network device, the terminal executes the step of falling back to the default CSI reporting method.

[0136] The second target duration is any one of Y time slots, Y symbols or Y ms (milliseconds).

[0137] In other embodiments, the terminal receives the response information sent by the network device, and after the terminal receives the third target duration of the response information sent by the network device, the terminal executes the step of falling back to the default CSI reporting method.

[0138] The third target duration is any one of Z time slots, Z symbols or Z ms (milliseconds).

[0139] It should be noted that the steps executed by the terminal in the embodiment of the present application can form an embodiment alone, and the steps executed by the network device can also form an embodiment alone, and the embodiment of the present application is not limited thereto.

[0140] In the solution provided in the embodiment of the present application, the terminal sends a request message to the network device to inform the network device through the request message that the terminal needs to adjust the CSI reporting method, and then the network device configures the terminal to perform subsequent adjustments to the CSI reporting method, thereby improving the reliability of adjusting the CSI reporting method.

[0141] Figure 2 The example of the terminal determining that the trigger condition is satisfied according to the first parameter group and the second parameter group is described. Specifically, the trigger condition includes at least one of the following:

[0142] (1) The difference between the first parameter group and the second parameter group is greater than a preset threshold.

[0143] In an embodiment of the present application, the terminal can obtain the difference between the first parameter group and the second parameter group. If the difference between the first parameter group and the second parameter group is greater than a preset threshold, it means that there is a large error between the result of the terminal compressing the CSI and the result after the network device decompresses the compressed CSI. At this time, the terminal determines that the trigger condition is met and the CSI reporting method needs to be adjusted.

[0144] For example, if both the first parameter group and the second parameter group include MCS, the MCS included in the first parameter group is 19, the MCS included in the second parameter group is 0, and the preset threshold is 6, then it means that the difference 19 between the first parameter group and the second parameter group is greater than 6, and the terminal determines that the trigger condition is met.

[0145] For another example, if both the first parameter group and the second parameter group include CQI, the CQI included in the first parameter group is 6, the MCS included in the second parameter group is 1, and the preset threshold is 2, then it means that the difference 5 between the first parameter group and the second parameter group is greater than 2, and the terminal determines that the trigger condition is met.

[0146] Among them, the preset threshold is set by the terminal itself, or agreed upon by the communication protocol, or configured by the network device, and the embodiment of the present application does not limit this.

[0147] (2) The number of times that the difference between the first parameter group and the second parameter group is greater than a preset threshold exceeds a preset number of times.

[0148] In an embodiment of the present application, the terminal determines the difference between the first parameter group and the second parameter group once every first preset time period, and the terminal will determine the difference between the first parameter group and the second parameter group multiple times. If the terminal continuously determines that the difference between the first parameter group and the second parameter group is greater than the preset threshold for more than the preset number of times, it means that the trigger condition is met and the CSI reporting method needs to be adjusted.

[0149] The preset number of times is set by the terminal itself, or agreed upon by the communication protocol, or configured by the network device, and is not limited in the embodiments of the present application.

[0150] For example, the preset number of times is 3. If the terminal continuously determines that the difference between the first parameter group and the second parameter group is greater than the preset threshold 4 times, which exceeds the preset number of times 3, it means that the trigger condition is met and the CSI reporting method needs to be adjusted.

[0151] (3) Within a second preset time period, the number of times that the difference between the first parameter group and the second parameter group is greater than a preset threshold exceeds a preset number of times.

[0152] In an embodiment of the present application, the terminal determines the difference between the first parameter group and the second parameter group once every first preset time period, and the terminal will determine the difference between the first parameter group and the second parameter group multiple times. If the terminal continuously determines that the difference between the first parameter group and the second parameter group is greater than the preset threshold value for more than a preset number of times within the second preset time period, it means that the trigger condition is met and the CSI reporting method needs to be adjusted.

[0153] Among them, the preset number of times is set by the terminal itself, or agreed upon by the communication protocol, or configured by the network device, which is not limited in the embodiment of the present application. The second preset duration is set by the terminal itself, or agreed upon by the communication protocol, or configured by the network device, which is not limited in the embodiment of the present application.

[0154] In the solution provided in the embodiment of the present application, the terminal determines whether the CSI reporting method needs to be adjusted based on the trigger condition, thereby ensuring the reliability of the terminal adjusting the CSI reporting method and thereby improving the accuracy of the CSI reported by the terminal.

[0155] Based on the above embodiment, the terminal needs to compress the CSI obtained by measuring the downlink reference signal, and the network device needs to decompress the received compressed CSI. Figure 5 A flowchart of a data processing method provided by an exemplary embodiment of the present application is shown, which can be applied to the following examples: Figure 1 In the terminal and network device shown, the method includes at least part of the following contents:

[0156] Step 501: The terminal receives a downlink reference signal sent by a network device.

[0157] Step 502: The terminal measures the downlink reference signal to obtain a third parameter group.

[0158] In an embodiment of the present application, the network device may send a downlink reference signal to the terminal, the terminal receives the downlink reference signal sent by the network device, and then measures the received downlink reference signal to obtain a third parameter group.

[0159] It should be noted that if the first parameter group in the present application is a parameter group obtained by the terminal measuring the downlink reference signal, and the third parameter group is also a parameter group obtained by the terminal measuring the downlink reference signal, the third parameter group is the same as the first parameter group.

[0160] If the first parameter group is a parameter group determined based on the measurement result to match the second parameter group, it means that the first parameter group is actually a parameter group obtained by measuring the downlink reference signal and then inferred based on the measurement result, and the measured parameter group is not directly used as the first parameter group. Therefore, the first parameter group in this case is different from the third parameter group obtained by the terminal measuring the downlink reference signal.

[0161] Step 503: The terminal compresses the third parameter group based on the compression model to obtain a fourth parameter group.

[0162] The compression model is used to compress the third parameter group measured by the terminal. The compression model is a model pre-stored by the terminal, or a model configured by the network device, or a model configured in other ways, which is not limited in the embodiment of the present application.

[0163] Step 504: The terminal sends a fourth parameter group to the network device.

[0164] In an embodiment of the present application, the terminal compresses the third parameter group based on the compression model to obtain a fourth parameter group, and the terminal can send the fourth parameter group to the network device to facilitate reporting of the CSI obtained after measuring the downlink reference signal.

[0165] Step 505: The network device receives the fourth parameter group sent by the terminal. The fourth parameter group is obtained by compressing the third parameter group by the terminal based on the compression model.

[0166] Step 506: The network device decompresses the fourth parameter group based on the decompression model to obtain a fifth parameter group.

[0167] The decompression model is used to decompress the compressed CSI.

[0168] In an embodiment of the present application, after the network device receives the fourth parameter group sent by the terminal, the fourth parameter group is a parameter group compressed by the third parameter group. Therefore, the network device needs to decompress the fourth parameter group based on the decompression model to obtain the fifth parameter group, and then the network device determines the scheduling parameter group based on the fifth parameter group, and then schedules the parameters for the terminal based on the scheduling parameter group.

[0169] It should be noted that the compression model and decompression model in the embodiment of the present application are associated models. These two models belong to a "two-sided" structure. The data compressed using the compression model can be decompressed using the decompression model.

[0170] In the solution provided in the embodiment of the present application, the terminal measures the downlink reference signal to obtain the third parameter group, and the compression model on the terminal side and the decompression model on the network device side can realize compression and decompression of CSI, so as to ensure the reliability of CSI transmission and save signaling overhead.

[0171] It should be noted that the above-mentioned embodiments can be split into new embodiments, or combined with other embodiments to form new embodiments. This application does not limit the combination between the embodiments.

[0172] Figure 6 A block diagram of a CSI reporting device provided by an exemplary embodiment of the present application is shown in FIG. Figure 6 , the device comprises:

[0173] An adjustment module 601 is configured to determine that a trigger condition is satisfied according to the first parameter group and the second parameter group, and adjust a CSI reporting mode of the terminal;

[0174] The first parameter group is obtained based on a measurement result of a downlink reference signal measured by a terminal, and the second parameter group is obtained based on a scheduling parameter group of a network device.

[0175] In some embodiments, the first parameter group is a parameter group obtained by the terminal measuring a downlink reference signal, and the second parameter group is a parameter group determined according to the scheduling parameter group and matching the first parameter group;

[0176] or,

[0177] The second parameter group is a scheduling parameter group, and the first parameter group is a parameter group determined according to the measurement result and matching with the second parameter group.

[0178] In some embodiments, the adjustment module 601 is further configured to:

[0179] Fall back to the default CSI reporting mode;

[0180] or,

[0181] Update the CSI reporting method.

[0182] In some embodiments, the adjustment module 601 is further configured to perform at least one of the following:

[0183] Updates to CSI reporting;

[0184] updating a compression model, where the compression model is used to compress a measurement result of a measured downlink reference signal;

[0185] Report configuration updates to CSI.

[0186] In some embodiments, see Figure 7 , the device further comprises:

[0187] A sending module 602 is used to send a request message to a network device, where the request message instructs the terminal to adjust the CSI reporting method;

[0188] The adjustment module 601 is further configured to execute the step of returning to the default CSI reporting mode.

[0189] In some embodiments, the adjustment module is further used to execute the step of falling back to the default CSI reporting method after sending the first target duration of the request information to the network device.

[0190] In some embodiments, see Figure 7 , the device further comprises:

[0191] The receiving module 603 is used to receive the response information sent by the network device, where the response information is sent by the network device in response to the request information, and the request information instructs the terminal to adjust the CSI reporting method;

[0192] The adjustment module 601 is further configured to, in response to the response information, execute a step of returning to a default CSI reporting mode, or execute a step of updating the CSI reporting mode.

[0193] In some embodiments, the adjustment module 601 is also used to, after receiving the second target duration of the response information sent by the network device, execute the step of falling back to the default CSI reporting method in response to the response information, or execute the step of updating the CSI reporting method.

[0194] In some embodiments, the CSI reporting method includes at least one of the following:

[0195] CSI reporting volume;

[0196] CSI reporting configuration;

[0197] The compression model is used to compress the measurement result of the measured downlink reference signal.

[0198] In some embodiments, the trigger condition includes at least one of the following:

[0199] The difference between the first parameter group and the second parameter group is greater than a preset threshold;

[0200] The number of times that the difference between the first parameter group and the second parameter group is greater than the preset threshold exceeds the preset number of times, and the terminal determines the difference between the first parameter group and the second parameter group once every first preset time length;

[0201] Within a second preset time period, the number of times that the difference between the first parameter group and the second parameter group is greater than a preset threshold exceeds a preset number of times.

[0202] In some embodiments, the first parameter group and the second parameter group each include at least one of the following:

[0203] MCS;

[0204] CQI.

[0205] In some embodiments, the adjustment module 601 is further used to, after adjusting the CSI reporting mode of the terminal, continue to perform the step of determining that the trigger condition is met according to the first parameter group and the second parameter group, and adjusting the CSI reporting mode of the terminal.

[0206] In some embodiments, see Figure 7 , the device further comprises:

[0207] The receiving module 603 is used to receive a downlink reference signal sent by a network device;

[0208] The measuring module 604 is configured to measure the downlink reference signal to obtain a third parameter group.

[0209] In some embodiments, see Figure 7 , the device further comprises:

[0210] A compression module 605, configured to compress the third parameter group based on the compression model to obtain a fourth parameter group;

[0211] The sending module 602 is configured to send a fourth parameter group to the network device.

[0212] It should be noted that the device provided in the above embodiment, when implementing its functions, is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0213] Figure 8 A block diagram of an information sending device provided by an exemplary embodiment of the present application is shown. Figure 8 , the device comprises:

[0214] The receiving module 801 is used to receive request information sent by the terminal, where the request information instructs the terminal to adjust the CSI reporting method;

[0215] The sending module 802 is used to send response information to the terminal in response to the request information. The terminal is used to fall back to the default CSI reporting mode or update the CSI reporting mode in response to the response information.

[0216] In some embodiments, the CSI reporting method includes at least one of the following:

[0217] CSI reporting volume;

[0218] CSI reporting configuration;

[0219] The compression model is used to compress the measurement result of the measured downlink reference signal.

[0220] In some embodiments, the first parameter group and the second parameter group each include at least one of the following:

[0221] MCS;

[0222] CQI.

[0223] In some embodiments, the apparatus further comprises:

[0224] The sending module 802 is configured to send a downlink reference signal to the terminal, where the downlink reference signal is measured by the terminal to obtain a third parameter group.

[0225] In some embodiments, see Fig. 9 , the device further comprises:

[0226] The receiving module 801 is used to receive a fourth parameter group sent by a terminal, where the fourth parameter group is obtained by compressing the third parameter group by the terminal based on a compression model;

[0227] The decompression module 803 is used to decompress the fourth parameter group based on the decompression model to obtain a fifth parameter group.

[0228] It should be noted that the device provided in the above embodiment, when implementing its functions, is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0229] Fig.10 A schematic diagram of the structure of a communication device provided by an exemplary embodiment of the present application is shown. The communication device includes: a processor 1001, a receiver 1002, a transmitter 1003, a memory 1004 and a bus 1005.

[0230] The processor 1001 includes one or more processing cores. The processor 1001 executes various functional applications and information processing by running software programs and modules.

[0231] The receiver 1002 and the transmitter 1003 may be implemented as a communication component, which may be a communication chip.

[0232] The memory 1004 is connected to the processor 1001 via a bus 1005 .

[0233] The memory 1004 may be used to store at least one program code, and the processor 1001 may be used to execute the at least one program code to implement each step in the above method embodiment.

[0234] In addition, the communication device may be a terminal or a network device. The memory 1004 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes but is not limited to: a magnetic disk or optical disk, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic memory, a flash memory, and a programmable read-only memory (PROM).

[0235] In an exemplary embodiment, a computer-readable storage medium is also provided, in which an executable program code is stored. The executable program code is loaded and executed by a processor to implement the CSI reporting method or information sending method performed by the communication device provided by the above-mentioned various method embodiments.

[0236] In an exemplary embodiment, a chip is provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on a terminal or a network device, it is used to implement the CSI reporting method or information sending method provided in each method embodiment.

[0237] In an exemplary embodiment, a computer program product is provided. When the computer program product is executed by a processor of a terminal or a network device, it is used to implement the CSI reporting method or information sending method provided by the above-mentioned various method embodiments.

[0238] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0239] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A CSI reporting method, characterized in that: The method is executed by a terminal, and includes: Measuring a downlink reference signal sent by a network device to obtain channel state information CSI, where the CSI includes a measurement result of the terminal measuring the downlink reference signal; Compressing the CSI to obtain compressed CSI; Sending the compressed CSI to the network device; receiving a scheduling parameter group sent by the network device, where the scheduling parameter group is obtained by the network device based on the compressed CSI reported by the terminal; Determining that a trigger condition is met according to the first parameter group and the second parameter group, adjusting a CSI reporting mode of the terminal; The first parameter group is a parameter group obtained by the terminal measuring the downlink reference signal, and the second parameter group is a parameter group determined according to the scheduling parameter group and matching the first parameter group; or, the second parameter group is the scheduling parameter group, and the first parameter group is a parameter group determined according to the measurement result and matching the second parameter group; the trigger condition is related to the difference between the first parameter group and the second parameter group; and adjusting the CSI reporting method of the terminal includes: falling back to a default CSI reporting method, or updating the CSI reporting method.

2. The method according to claim 1, characterized in that The updating of the CSI reporting method includes at least one of the following: Updates to CSI reporting; updating a compression model, where the compression model is used to compress a measurement result of the measured downlink reference signal; Report configuration updates to CSI.

3. The method according to claim 1, characterized in that The method further comprises: Sending a request message to the network device, wherein the request message instructs the terminal to adjust the CSI reporting method; Execute the step of falling back to the default CSI reporting mode.

4. The method according to claim 3, characterized in that The step of performing the step of falling back to the default CSI reporting mode includes: After the first target duration of sending the request information to the network device, the step of falling back to the default CSI reporting mode is performed.

5. The method according to claim 3, characterized in that: The method further comprises: receiving response information sent by the network device, where the response information is sent by the network device in response to request information, where the request information instructs the terminal to adjust the CSI reporting mode; In response to the response information, the step of falling back to the default CSI reporting mode is executed, or the step of updating the CSI reporting mode is executed.

6. The method according to claim 5, characterized in that In response to the response information, executing the step of falling back to the default CSI reporting mode, or executing the step of updating the CSI reporting mode, includes: After receiving the second target duration of the response information sent by the network device, in response to the response information, the step of falling back to the default CSI reporting method is executed, or the step of updating the CSI reporting method is executed.

7. The method according to claim 1, characterized in that The CSI reporting method includes at least one of the following: CSI reporting volume; CSI reporting configuration; A compression model, wherein the compression model is used to compress the measurement result of the measured downlink reference signal.

8. The method according to claim 1, characterized in that The trigger condition includes at least one of the following: The difference between the first parameter group and the second parameter group is greater than a preset threshold; The number of times that the difference between the first parameter group and the second parameter group is greater than the preset threshold exceeds the preset number of times, and the terminal determines the difference between the first parameter group and the second parameter group once every first preset time length; Within a second preset time period, the number of times that the difference between the first parameter group and the second parameter group is greater than the preset threshold exceeds the preset number of times.

9. The method according to claim 1, characterized in that: The first parameter group and the second parameter group each include at least one of the following: Modulation and coding scheme MCS; Channel quality indication CQI.

10. The method according to claim 1, characterized in that The method further comprises: After adjusting the CSI reporting mode of the terminal, continue to perform the step of determining that the trigger condition is met according to the first parameter group and the second parameter group, and adjusting the CSI reporting mode of the terminal.

11. The method according to any one of claims 1 to 10, characterized in that: The method further comprises: The downlink reference signal is measured to obtain a third parameter group.

12. The method according to claim 11, characterized in that The method further comprises: Based on the compression model, compressing the third parameter group to obtain a fourth parameter group; The fourth parameter group is sent to the network device.

13. A method for sending information, characterized in that: The method is performed by a network device, and the method includes: Sending a downlink reference signal, where the downlink reference signal is used by the terminal to measure and obtain channel state information CSI; receiving compressed CSI sent by the terminal, where the compressed CSI is obtained by compressing the CSI by the terminal; Sending a scheduling parameter group to the terminal, where the scheduling parameter group is obtained by the network device based on the compressed CSI reported by the terminal; receiving request information sent by a terminal, the request information instructing the terminal to adjust a CSI reporting mode, the request information being sent by the terminal after determining that a trigger condition is met according to a first parameter group and a second parameter group, wherein the first parameter group is a parameter group obtained by the terminal measuring the downlink reference signal, and the second parameter group is a parameter group determined according to the scheduling parameter group and matching the first parameter group; or, the second parameter group is the scheduling parameter group, and the first parameter group is a parameter group determined according to the measurement result and matching the second parameter group; the trigger condition is related to a difference between the first parameter group and the second parameter group; In response to the request information, a response information is sent to the terminal, and the terminal is used to fall back to a default CSI reporting mode or update the CSI reporting mode in response to the response information.

14. The method according to claim 13, characterized in that The CSI reporting method includes at least one of the following: CSI reporting volume; CSI reporting configuration; A compression model is used to compress a measurement result of a measured downlink reference signal.

15. The method according to claim 13, characterized in that The first parameter group and the second parameter group each include at least one of the following: Modulation and coding strategy MCS; Channel quality indication CQI.

16. The method according to claim 13, characterized in that The downlink reference signal is measured by the terminal to obtain a third parameter group.

17. The method according to claim 16, characterized in that The method further comprises: receiving a fourth parameter group sent by the terminal, where the fourth parameter group is obtained by compressing the third parameter group by the terminal based on a compression model; Based on the decompression model, the fourth parameter group is decompressed to obtain a fifth parameter group.

18. A CSI reporting device, characterized in that: The device comprises: A measurement module, configured to measure a downlink reference signal sent by a network device to obtain channel state information CSI, wherein the CSI includes a measurement result of the downlink reference signal measured by a terminal; A compression module, used to compress the CSI to obtain compressed CSI; A sending module, used to send the compressed CSI to the network device; A receiving module, configured to receive a scheduling parameter group sent by the network device, where the scheduling parameter group is obtained by the network device based on the compressed CSI reported by the terminal; An adjustment module, configured to determine that a trigger condition is met according to the first parameter group and the second parameter group, and adjust a CSI reporting mode of the terminal; The first parameter group is a parameter group obtained by the terminal measuring the downlink reference signal, and the second parameter group is a parameter group determined according to the scheduling parameter group and matching the first parameter group; or, the second parameter group is the scheduling parameter group, and the first parameter group is a parameter group determined according to the measurement result and matching the second parameter group; the trigger condition is related to the difference between the first parameter group and the second parameter group; and adjusting the CSI reporting method of the terminal includes: falling back to a default CSI reporting method, or updating the CSI reporting method.

19. The device according to claim 18, characterized in that The adjustment module is further configured to perform at least one of the following: Updates to CSI reporting; updating a compression model, where the compression model is used to compress a measurement result of the measured downlink reference signal; Report configuration updates to CSI.

20. The device according to claim 18, characterized in that The sending module is further used to send request information to the network device, the request information instructing the terminal to perform adjustment on the CSI reporting mode, the request information is sent by the terminal after determining that a trigger condition is met according to a first parameter group and a second parameter group, wherein the first parameter group is obtained based on a measurement result of a downlink reference signal measured by the terminal, and the second parameter group is obtained based on a scheduling parameter group of the network device, the scheduling parameter group is obtained by the network device based on the compressed CSI reported by the terminal, and the CSI includes a measurement result of the downlink reference signal measured by the terminal; The adjustment module is also used to execute the step of falling back to the default CSI reporting mode.

21. The device according to claim 20, characterized in that The adjustment module is also used to execute the step of falling back to the default CSI reporting mode after sending the first target duration of the request information to the network device.

22. The device according to claim 20, characterized in that The receiving module is further configured to receive response information sent by the network device, wherein the response information is sent by the network device in response to the request information, and the request information instructs the terminal to adjust the CSI reporting method; The adjustment module is further used to execute the step of falling back to the default CSI reporting mode in response to the response information, or execute the step of updating the CSI reporting mode.

23. The device according to claim 22, characterized in that The adjustment module is also used to, after receiving the second target duration of the response information sent by the network device, execute the step of falling back to the default CSI reporting method in response to the response information, or execute the step of updating the CSI reporting method.

24. The device according to claim 18, characterized in that The CSI reporting method includes at least one of the following: CSI reporting volume; CSI reporting configuration; A compression model, wherein the compression model is used to compress the measurement result of the measured downlink reference signal.

25. The device according to claim 18, characterized in that The trigger condition includes at least one of the following: The difference between the first parameter group and the second parameter group is greater than a preset threshold; The number of times that the difference between the first parameter group and the second parameter group is greater than the preset threshold exceeds the preset number of times, and the terminal determines the difference between the first parameter group and the second parameter group once every first preset time length; Within a second preset time period, the number of times that the difference between the first parameter group and the second parameter group is greater than the preset threshold exceeds the preset number of times.

26. The device according to claim 18, characterized in that The first parameter group and the second parameter group each include at least one of the following: Modulation and coding scheme MCS; Channel quality indication CQI.

27. The device according to claim 18, characterized in that The adjustment module is further configured to, after adjusting the CSI reporting mode of the terminal, continue to execute the step of determining that a trigger condition is satisfied according to the first parameter group and the second parameter group, and adjusting the CSI reporting mode of the terminal.

28. The device according to any one of claims 18 to 27, characterized in that The measurement module is further used to measure the downlink reference signal to obtain a third parameter group.

29. The device according to claim 28, characterized in that The compression module is further used to compress the third parameter group based on the compression model to obtain a fourth parameter group; The sending module is further used to send the fourth parameter group to the network device.

30. An information sending device, characterized in that: The device comprises: A sending module, used to send a downlink reference signal, where the downlink reference signal is used by the terminal to measure and obtain channel state information CSI; A receiving module, configured to receive the compressed CSI sent by the terminal, where the compressed CSI is obtained by the terminal compressing the CSI; The sending module is further used to send a scheduling parameter group to the terminal, where the scheduling parameter group is obtained by the network device based on the compressed CSI reported by the terminal; The receiving module is further used to receive request information sent by a terminal, where the request information instructs the terminal to perform adjustment on a CSI reporting mode, and the request information is sent by the terminal after determining that a trigger condition is met according to a first parameter group and a second parameter group, wherein the first parameter group is a parameter group obtained by the terminal measuring the downlink reference signal, and the second parameter group is a parameter group determined according to the scheduling parameter group and matched with the first parameter group; or, the second parameter group is the scheduling parameter group, and the first parameter group is a parameter group determined according to the measurement result and matched with the second parameter group; the trigger condition is related to a difference between the first parameter group and the second parameter group; The sending module is further used to send response information to the terminal in response to the request information, and the terminal is used to fall back to a default CSI reporting method in response to the response information, or to update the CSI reporting method.

31. The device according to claim 30, characterized in that The CSI reporting method includes at least one of the following: CSI reporting volume; CSI reporting configuration; A compression model is used to compress a measurement result of a measured downlink reference signal.

32. The device according to claim 30, characterized in that The first parameter group and the second parameter group each include at least one of the following: Modulation and coding strategy MCS; Channel quality indication CQI.

33. The device according to claim 30, characterized in that The downlink reference signal is measured by the terminal to obtain a third parameter group.

34. The device according to claim 33, characterized in that The receiving module is further configured to receive a fourth parameter group sent by the terminal, where the fourth parameter group is obtained by compressing the third parameter group by the terminal based on a compression model; A decompression module is used to decompress the fourth parameter group based on a decompression model to obtain a fifth parameter group.

35. A terminal, characterized in that: The terminal comprises: processor; a transceiver connected to the processor; The processor is configured to load and execute executable instructions to implement the CSI reporting method as described in any one of claims 1 to 12.

36. A network device, characterized in that: The network equipment includes: processor; a transceiver connected to the processor; The processor is configured to load and execute executable instructions to implement the information sending method as described in any one of claims 13 to 17.

37. A computer-readable storage medium, wherein an executable program code is stored in the computer-readable storage medium, wherein the executable program code is loaded and executed by a processor to implement the CSI reporting method as described in any one of claims 1 to 12 or to implement the information sending method as described in any one of claims 13 to 17.

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