Communication method, terminal device, network device, communication device, communication system, storage medium, and program product

Abstract

Provided in the embodiments of the present disclosure are a communication method, a terminal device, a network device, a communication device, a communication system, a storage medium and a program product. The method comprises: on the basis of first information, performing channel measurement at at least one moment, so as to obtain CSI for the at least one moment, wherein the first information is used for indicating the at least one moment, the CSI for the at least one moment is used for training a CSI model, and the CSI model is used for processing the CSI. In the embodiments of the present disclosure, at least one moment is indicated by means of first information, such that a terminal device / network device can measure CSI for the at least one moment for training a CSI model, thereby improving the performance of the CSI model.

Description

Communication methods, terminal equipment, network equipment, communication devices, communication systems, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, terminal equipment, network equipment, communication equipment, communication system, storage medium, and program product. Background Technology

[0002] Currently, CSI can be processed using a Channel State Information (CSI) model to reduce the overhead of CSI reporting by terminal devices. Specifically, CSI can be compressed on the terminal device side using the CSI model, and the compressed CSI can be restored on the network device side using the CSI model. Summary of the Invention

[0003] This disclosure provides a communication method, terminal device, network device, communication device, communication system, storage medium, and program product to obtain CSI at least at one moment for training a CSI model.

[0004] According to a first aspect of the present disclosure, a communication method is provided, the method comprising:

[0005] Based on the first information, channel measurements are performed at at least one time to obtain the CSI at at least one time.

[0006] The first information is used to indicate at least one time point, the CSI at at least one time point is used to train the CSI model, and the CSI model is used to process the CSI.

[0007] In this embodiment of the disclosure, the first information indicates at least one moment, enabling the terminal device / network device to measure the CSI at at least one moment, thereby using the CSI at at least one moment to train the CSI model and improve the performance of the CSI model.

[0008] According to a second aspect of the present disclosure, a terminal device is provided, comprising:

[0009] The processing module is used to perform channel measurement at at least one moment based on the first information, and obtain the CSI at at least one moment;

[0010] The first information is used to indicate at least one time point, the CSI at at least one time point is used to train the CSI model, and the CSI model is used to process the CSI.

[0011] According to a third aspect of the embodiments of this disclosure, a network device is provided, comprising:

[0012] The processing module is used to perform channel measurement at at least one moment based on the first information, and obtain the CSI at at least one moment;

[0013] The first information is used to indicate at least one time point, the CSI at at least one time point is used to train the CSI model, and the CSI model is used to process the CSI.

[0014] According to a fourth aspect of the embodiments of this disclosure, a communication device is provided for performing the communication method of any of the first aspects.

[0015] According to a fifth aspect of the present disclosure, a communication system is provided, including a terminal device or a network device, wherein the terminal device is configured to implement the communication method of any one of the first aspects, and the network device is configured to implement the communication method of any one of the first aspects.

[0016] According to a sixth aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed on a communication device, cause the communication device to perform a communication method as described in any of the first aspects.

[0017] According to a seventh aspect of the present disclosure, a program product is provided, comprising at least one of a program and instructions, wherein when the program and instructions are executed by a communication device, the steps of implementing the communication method of any one of the first aspects are provided. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0019] Figure 1a is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0020] Figure 1b is a schematic diagram of the processing of a bilateral CSI model provided in an embodiment of this disclosure;

[0021] Figure 1c is a schematic diagram of a CSI process provided in an embodiment of this disclosure;

[0022] Figure 1d is a schematic diagram of a CSI prediction process provided in an embodiment of this disclosure;

[0023] Figure 1e is a schematic diagram of a CSI process provided in an embodiment of this disclosure;

[0024] Figure 1f is a schematic diagram of a CSI process provided in an embodiment of this disclosure;

[0025] Figure 2a is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure;

[0026] Figure 2b is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure;

[0027] Figure 2c is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure;

[0028] Figure 2d is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure;

[0029] Figure 2e is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure;

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

[0031] Figure 2g is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure;

[0032] Figure 2h is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure;

[0033] Figure 3 is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure;

[0034] Figure 4a is an exemplary structural diagram of the terminal device proposed in an embodiment of this disclosure;

[0035] Figure 4b is an exemplary structural diagram of the network device proposed in an embodiment of this disclosure;

[0036] Figure 5a is an exemplary structural schematic diagram of the communication device proposed in an embodiment of this disclosure;

[0037] Figure 5b is an exemplary structural diagram of the chip proposed in an embodiment of this disclosure. Detailed Implementation

[0038] This disclosure provides a communication method, terminal device, network device, communication device, communication system, storage medium, and program product to obtain CSI at least at one moment for training a CSI model.

[0039] According to a first aspect of the present disclosure, a communication method is provided, the method comprising:

[0040] Based on the first information, channel measurements are performed at at least one time to obtain the CSI at at least one time.

[0041] The first information is used to indicate at least one time point, the CSI at at least one time point is used to train the CSI model, and the CSI model is used to process the CSI.

[0042] In this embodiment of the disclosure, the first information indicates at least one moment, enabling the terminal device / network device to measure the CSI at at least one moment, thereby using the CSI at at least one moment to train the CSI model and improve the performance of the CSI model.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, at least one moment includes multiple first moments and / or at least one second moment, the second moment being later than the first moment.

[0044] In this embodiment of the disclosure, by measuring multiple first-time CSIs and / or at least one second-time CSI, a training dataset that meets the training requirements of the CSI model can be obtained, which can then be used to train the CSI model and improve the performance of the CSI model.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes at least one of the following:

[0046] The number of multiple first moments;

[0047] The time difference between two adjacent first moments;

[0048] At least the number of second time points;

[0049] The time difference between two adjacent second moments;

[0050] The time difference between the last first moment and the first second moment;

[0051] Time difference offset is used to determine the first second time point.

[0052] In this embodiment of the disclosure, multiple first moments can be determined by the number of multiple first moments and / or the time difference between two adjacent first moments. At least one second moment can be determined by the number of at least one second moment and the time difference between two adjacent second moments (when there are multiple second moments). The first second moment can be determined by the time difference offset. The correlation between the first and second moments can be determined by the time difference between the last first moment and the first second moment. Therefore, by using the parameters included in the first information, multiple first moments and / or second moments, as well as the correlation between the first and second moments, can be determined, thereby enabling the terminal device / network device to measure the CSI at least one moment for training the CSI model and improving the performance of the CSI model.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the time difference between every two adjacent first moments is the same; and / or, the time difference between every two adjacent second moments is the same.

[0054] In conjunction with some embodiments of the first aspect, in some embodiments, the time difference between any two adjacent first moments is the same; the time difference between any two adjacent second moments is the same; and the time difference between any two adjacent first moments is the same as the time difference between any two adjacent second moments.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the first second time point is the sum of the third time point and the time difference offset, wherein:

[0056] The third moment is the moment when network devices are configured; or, the third moment is the moment when CSI is reported.

[0057] In this embodiment of the disclosure, the first second time can be determined by the third time and the time difference offset. By combining the first second time, the number of at least one second time, and the time difference between two adjacent second times (when there are multiple second times), at least one second time can be determined, thereby enabling the terminal device / network device to measure the CSI of at least one second time for training the CSI model and improving the performance of the CSI model.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the CSI at at least one moment is obtained by channel measurement based on reference signal resources, the reference signal resources including at least one of the following:

[0059] Periodic reference signal resources;

[0060] Semi-persistent reference signal resources;

[0061] Aperiodic reference signal resources.

[0062] In this embodiment of the disclosure, by flexibly configuring at least one of periodic reference signal resources, semi-continuous reference signal resources, and aperiodic reference signal resources, the terminal device / network device can measure CSI at at least one moment according to the configured reference signal resources, thereby using the CSI at at least one moment to train the CSI model and improve the performance of the CSI model.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, the method is executed by a terminal device, and the first information is determined by at least one of the following:

[0064] Network equipment configuration;

[0065] Predefined;

[0066] Configured reference signal resources.

[0067] In this embodiment of the present disclosure, the terminal device can determine the first information by at least one of the following methods: network device configuration, predefined method, and configured reference signal resources. Based on the first information, the terminal device can perform channel measurement at at least one time to obtain the CSI at at least one time, thereby improving the flexibility of determining the first information.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the method is performed by a network device, and the first information is determined by at least one of the following:

[0069] Terminal device reports instructions;

[0070] Predefined;

[0071] Configured reference signal resources.

[0072] In this embodiment of the present disclosure, the network device can determine the first information by at least one of the following methods: terminal device reporting indication, predefined method, and configured reference signal resources. Based on the first information, the network device can perform channel measurement at at least one time to obtain the CSI at at least one time, thereby improving the flexibility of determining the first information.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0074] Receive the first message;

[0075] or,

[0076] The first part of the parameters in the first information is received, and the second part of the parameters in the first information is determined by predefined and / or configured reference signal resources. The first information includes the first part of the parameters and the second part of the parameters.

[0077] In this embodiment of the disclosure, the terminal device / network device can receive first information, or receive a first part of the parameters in the first information, and determine a second part of the parameters in the first information based on predefined and / or configured reference signal resources, thereby improving the flexibility of obtaining the first information.

[0078] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0079] Receive instruction information; among which,

[0080] The instruction information is used to indicate the first information; or,

[0081] The indication information is used to indicate the first part of the parameters in the first information, and the second part of the parameters in the first information is determined by predefined and / or configured reference signal resources. The first information includes the first part of the parameters and the second part of the parameters.

[0082] In this embodiment of the disclosure, the first information or the first part of the parameters is indicated by the indication information, which improves the flexibility of determining the first information and reduces the signaling overhead.

[0083] Secondly, embodiments of this disclosure provide a terminal device, including:

[0084] The processing module is used to perform channel measurement at at least one moment based on the first information, and obtain the CSI at at least one moment;

[0085] The first information is used to indicate at least one time point, the CSI at at least one time point is used to train the CSI model, and the CSI model is used to process the CSI.

[0086] Thirdly, embodiments of this disclosure provide a network device, including:

[0087] The processing module is used to perform channel measurement at at least one moment based on the first information, and obtain the CSI at at least one moment;

[0088] The first information is used to indicate at least one time point, the CSI at at least one time point is used to train the CSI model, and the CSI model is used to process the CSI.

[0089] Fourthly, embodiments of this disclosure provide a communication device for performing the methods described in the first aspect and optional implementations of the first aspect.

[0090] Fifthly, embodiments of this disclosure provide a communication system including a terminal device or a network device, wherein the terminal device is configured to implement the method described in the first aspect and optional implementations of the first aspect, and the network device is configured to implement the method described in the first aspect and optional implementations of the first aspect.

[0091] In a sixth aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the methods described in the first aspect and optional implementations of the first aspect.

[0092] In a seventh aspect, embodiments of this disclosure provide a program product including at least one of a program and instructions, wherein when the program and at least one of the instructions are executed by a communication device, the method described in the first aspect and the optional implementation of the first aspect is implemented.

[0093] Eighthly, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in the first aspect and optional implementations of the first aspect.

[0094] Ninthly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described in the first aspect and optional implementations thereof.

[0095] It is understood that the aforementioned terminal devices, network devices, communication devices, communication systems, storage media, and program products are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0096] This disclosure provides embodiments of a communication method, a terminal device, a network device, a communication device, a communication system, a storage medium, and a program product. In some embodiments, the terms "communication method" and "channel measurement method," "CSI acquisition method," etc., can be used interchangeably; the terms "communication device" and "channel measurement device," "CSI acquisition device," etc., can be used interchangeably; and the terms "communication system" and "channel measurement system," "CSI acquisition system," etc., can be used interchangeably.

[0097] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0098] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0099] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0100] In the embodiments disclosed herein, "multiple" refers to two or more.

[0101] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0102] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0103] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0104] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0105] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0106] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0107] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0108] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0109] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0110] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0111] In some embodiments, the terms "terminal", "terminal device", "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", and "client" can be used interchangeably.

[0112] In some embodiments, access network devices, core network devices, or network devices can be replaced with terminal devices. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminal devices is replaced with communication between multiple terminal devices (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the terminal devices can also be configured to have all or part of the functions of the access network devices. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminal devices (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0113] In some embodiments, the terminal device may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal device.

[0114] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0115] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0116] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0117] Figure 1a is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1a, the communication system 1100 includes a terminal device 1101 and a network device 1102.

[0118] In some embodiments, terminal device 1101 includes, for example, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home, but is not limited thereto.

[0119] In some embodiments, network device 1102 may include at least one of access network device and core network device.

[0120] In some embodiments, the access network device is, for example, a node or device that connects a terminal device to a wireless network. The access network device may include at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system, but is not limited thereto.

[0121] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0122] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0123] In some embodiments, the core network equipment may be a single device, including a first network element, a second network element, etc., or it may be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. Network elements may be virtual or physical. The core network may include, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0124] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0125] The following embodiments of this disclosure can be applied to the communication system 1100 shown in FIG1a, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1a are illustrative. The communication system may include all or some of the main bodies in FIG1a, or it may include other main bodies outside of FIG1a. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection may be in any way, such as direct connection or indirect connection, wired connection or wireless connection.

[0126] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0127] In a wireless communication system, a terminal device can measure the downlink channel, obtain the CSI of the downlink channel, and send the CSI of the downlink channel to the network device.

[0128] In some embodiments, CSI compression and recovery can be achieved through a bilateral Artificial Intelligence (AI) model or a bilateral Machine Learning (ML) model to reduce the overhead of CSI reporting by terminal devices and improve the accuracy of CSI feedback. The bilateral AI model or bilateral ML model used for CSI compression and recovery can also be called a bilateral CSI model. The process is described below with reference to Figure 1b.

[0129] Figure 1b is a schematic diagram of a bilateral CSI model provided in an embodiment of this disclosure. As shown in Figure 1b, the bilateral CSI model includes two components: a CSI generation part model and a CSI recovery part model. The CSI generation part model is deployed in the terminal device, and the CSI recovery part model is deployed in the network device.

[0130] After configuring downlink reference signal resources, the terminal device performs channel measurement based on the downlink reference signal resources to obtain the CSI of the downlink channel, as shown in Figure 1b, where H represents the CSI of the downlink channel measured by the terminal device.

[0131] Then, the terminal device inputs the CSI of the downlink channel into the CSI generation part model. After the CSI of the downlink channel is compressed by the CSI generation part model, it is then quantized to obtain a binary bit stream (represented by s in Figure 1b).

[0132] After obtaining the binary bit stream s, the terminal device sends the binary bit stream s to the network device. The network device inputs the binary bit stream s into the CSI recovery part model to obtain the recovered CSI, as shown in Figure 1b. H' represents the CSI recovered by the network device.

[0133] In some embodiments, the CSI measured by the terminal device and the CSI recovered by the network device may be the same or different.

[0134] Since the binary bit stream s is obtained by the terminal device through the CSI generation partial model and the compression of the measured CSI, the overhead of the terminal device reporting CSI can be reduced.

[0135] In some embodiments, during the compression and recovery of CSI using a bilateral CSI model, the performance of CSI compression can be improved based on the correlation of the time-domain channel. The correlation of the time-domain channel refers to the degree of correlation between channels at different times. In this embodiment, there is a certain correlation between CSIs at different times, and the performance of CSI compression can be improved by leveraging this correlation.

[0136] In some embodiments, improving the performance of CSI compression based on the correlation of the time-domain channel can include the following two implementation methods:

[0137] Implementation Method 1: Compress the current CSI based on the CSI of historical moments;

[0138] Method 2: Predict the CSI of future times based on the CSI of historical times, and compress the CSI of future times.

[0139] The two implementation methods will be described below with reference to the accompanying drawings.

[0140] For implementation method one, the current time refers to the time when the terminal device measures the CSI, while the historical time refers to the time before the current time. For example, if the terminal device measures the CSI at time t, and then needs to report the CSI at time t, then time t is the current time, and the historical time is the time before time t. Taking time tT as an example, implementation method one means that the terminal device can compress the CSI at time t using the CSI at time tT, and then obtain the corresponding binary bitstream through quantization. After obtaining the binary bitstream, the terminal device sends it to the network device, which can compress and recover the CSI at time t based on the CSI at the historical time.

[0141] The processing steps for Method 1 can be understood in conjunction with Figure 1c.

[0142] Figure 1c is a schematic diagram of a CSI processing method provided in an embodiment of this disclosure. As shown in Figure 1c, the CSI compression and compression recovery processes can be implemented using a bilateral CSI model. The bilateral CSI model includes two components: an encoder and a decoder. The encoder is deployed on the terminal device side, and the decoder is deployed on the network device side.

[0143] In some embodiments, the encoder exemplified in FIG1c may be a CSI generation part model, used to compress the CSI measured by the terminal device to obtain a binary bit stream, and the decoder may be a CSI recovery part model, used to compress and recover the binary bit stream to recover the corresponding CSI.

[0144] In the example of Figure 1c, H represents the CSI measured by the terminal device, or simply the measured CSI. Accordingly, H t H represents the CSI measurement at time t. t+T H represents the CSI measurement at time t+T. t+2T The measurement CSI at time t+2T is represented.

[0145] In the example of Figure 1c, let 'a' represent the predicted CSI of the encoder output, or simply the first predicted CSI. Accordingly, a t a represents the first predicted CSI at time t. t-T a represents the first predicted CSI at time tT. t+T a represents the first predicted CSI at time t+T. t+2T This represents the first predicted CSI at time t+2T;

[0146] In the example of Figure 1c, let b represent the predicted CSI output by the decoder, or simply the second predicted CSI. Accordingly, b t b represents the second predicted CSI at time t. t-T b represents the second predicted CSI at time tT. t+T b represents the second predicted CSI at time t+T. t+2T This represents the second predicted CSI at time t+2T;

[0147] In the example of Figure 1c, H' represents the CSI recovered by the network device, or simply recovered CSI. Correspondingly, H... t ' represents the recovered CSI at time t, H t+T ' represents the recovered CSI at time t+T, H t+2T ' indicates the recovery CSI at time t+2T.

[0148] Figure 1c illustrates the processing of CSI at three different time points. The CSI measurement at time t (i.e., H in Figure 1c) is shown below. t For H, the current time is time t, and the historical time can be, for example, time tT. t During the compression process, the CSI input to the encoder includes H t In addition, it also includes the first predicted CSI at time tT (i.e., a in Figure 1c). t-T The encoder is based on a t-T For H t Perform compression processing and output 'a'. t and binary bit stream s t Then the terminal device sends a binary bit stream s to the network device. t The network device receives the binary bit stream s. t Then, the binary bit stream s t and the second predicted CSI at time tT (i.e., b in Figure 1c). t- T The input is fed into the decoder, which is based on b. t-T For binary bit stream s t Perform compression and recovery processing, output b tand H t '.

[0149] For the measurement of CSI at time t+T (i.e., H in Figure 1c) t+T In this context, the current time is t+T, and the terminal device will... t+T and a t The input is fed into the encoder, which is based on a t For H t+T The compression process is performed to obtain a binary bit stream s. t+T Then the terminal device sends a binary bit stream s to the network device. t+T The network device received s t+T After that, s t+T and b t The input is fed into the decoder, which is based on b. t For binary bit stream s t+T Perform compression and recovery processing, output b t+T and H t+T '. For the measurement of CSI at time t+2T (i.e., H in Figure 1c) t+2T Its processing procedure is similar to H t+T The processing procedure is similar and will not be repeated here.

[0150] Referring to the example in Figure 1c, for implementation method one, the bilateral CSI model includes an encoder and a decoder. The encoder's input includes the measured CSI at the current moment and the first predicted CSI at at least one historical moment. The encoder compresses the measured CSI at the current moment based on the first predicted CSI at at least one historical moment to obtain the corresponding binary bitstream and the first predicted CSI at the current moment. The first predicted CSI at the current moment can be used for the compression processing of the measured CSI at the next moment. After the terminal device sends the binary bitstream to the network device, the network device inputs the binary bitstream and the second predicted CSI at at least one historical moment to the decoder. The decoder compresses and restores the binary bitstream based on the second predicted CSI at at least one historical moment to obtain the restored CSI at the current moment and the second predicted CSI at the current moment. The second predicted CSI at the current moment can be used for the compression and restoration processing of the binary bitstream at the next moment.

[0151] In the above embodiments, the processing procedure for implementation method one has been described. The processing procedure for implementation method two will be described below with reference to the accompanying drawings.

[0152] In implementation method two, historical moments and future moments are relative, with future moments being moments later than historical moments. The terminal device can measure the CSI at multiple historical moments, then predict the CSI at least one future moment based on these historical CSI measurements. The terminal device then compresses the CSI at least one future moment, quantizes it to obtain the corresponding binary bitstream, and sends it to the network device. Upon receiving the binary bitstream, the network device compresses and recovers it to reconstruct the CSI at least one future moment. In some embodiments, implementation method two can be used in scenarios requiring CSI prediction, such as high-speed movement scenarios.

[0153] The processing steps for implementation method two can be understood in conjunction with Figure 1d.

[0154] Figure 1d is a schematic diagram of a CSI prediction process provided in an embodiment of this disclosure. As shown in Figure 1d, the network device can send CSI-RS to the terminal device in the form of a channel state information-reference signal (CSI-RS) burst. This CSI-RS burst is within an observation window. The terminal device performs channel measurements based on the multiple CSI-RS received within the observation window to obtain CSI at multiple historical times, as shown in Figure 1d. These multiple historical times include time t1, time t2, time t3, and time t4.

[0155] Then, the terminal device predicts the CSI at least one future time based on the CSI at multiple historical times within the observation window. The CSI at least one future time is within the prediction window, as shown in Figure 1d. The at least one future time includes time t5, time t6, time t7, and time t8.

[0156] Furthermore, the terminal device compresses the CSI at least at a future time to obtain a binary bit stream, and then... n A binary bit stream is constantly being sent to the network device, as shown in Figure 1d, t n The time is the time when at least one future CSI is reported. The network device compresses and restores the binary bit stream to obtain the restored CSI for at least one future time.

[0157] For implementation method two, there are two model deployment methods, which will be introduced below with reference to the attached diagram.

[0158] Figure 1e is a second schematic diagram of a CSI processing method provided in an embodiment of this disclosure. As shown in Figure 1e, it includes a one-sided CSI prediction model and a two-sided CSI model. The one-sided CSI prediction model is deployed on the terminal device side, and the two-sided CSI model includes two components: a CSI compression model and a CSI recovery model. The CSI compression model is deployed on the terminal device side, and the CSI recovery model is deployed on the network device side.

[0159] In some embodiments, the one-sided CSI prediction model is used to predict the CSI at least one future time based on the CSI at multiple historical time points. For the CSI compression part of the two-sided CSI model, the CSI compression part is used to compress the CSI at least one future time point, and then quantize it to obtain a binary bitstream. For the CSI recovery part of the two-sided CSI model, the CSI recovery part is used to compress and recover the binary bitstream, outputting the recovered CSI at the future time point.

[0160] Taking the example in Figure 1d, which includes multiple historical moments such as t1, t2, t3, and t4, and at least one future moment such as t5, t6, t7, and t8, the terminal device can input the CSI at t1, t2, t3, and t4 into the one-sided CSI prediction model. The one-sided CSI prediction model uses the CSI at t1, t2, t3, and t4 to predict and output the CSI at t5, t6, t7, and t8.

[0161] Then, the terminal device inputs the CSI at times t5, t6, t7, and t8 into the CSI compression model. The CSI compression model compresses these CSI values, then quantizes them to obtain a binary bitstream, which is then sent to the network device. Upon receiving the binary bitstream, the network device inputs it into the CSI recovery model and outputs the recovered CSI values ​​at times t5, t6, t7, and t8.

[0162] Figure 1f is a schematic diagram of a CSI processing method provided in an embodiment of this disclosure. As shown in Figure 1f, it includes a bilateral CSI model, which consists of two parts: a CSI prediction compression model and a CSI recovery prediction model. The CSI prediction compression model is deployed on the terminal device side, and the CSI recovery prediction model is deployed on the network device side.

[0163] The CSI prediction compression model predicts at least one future CSI based on CSI data from multiple historical time points, compresses the predicted future CSI, and then quantizes it to obtain a binary bitstream. The CSI recovery prediction model compresses and recovers the binary bitstream, outputting the recovered future CSI.

[0164] Taking the example in Figure 1d, which shows multiple historical moments including t1, t2, t3, and t4, and at least one future moment including t5, t6, t7, and t8, the terminal device can input the CSI values ​​at t1, t2, t3, and t4 into the CSI prediction and compression model. The model uses these values ​​to predict the CSI values ​​at t5, t6, t7, and t8, compresses them, and then quantizes them to obtain a binary bitstream. The terminal device then sends this binary bitstream to the network device. After receiving the binary bit stream, the network device inputs it into the CSI recovery prediction part of the model and outputs the recovered CSI at time t5, time t6, time t7 and time t8.

[0165] For both implementation methods one and two described above, a training dataset is needed to train the CSI model before processing it. For implementation method one, the CSI model can be, for example, the bilateral CSI model shown in Figure 1c, comprising an encoder and a decoder. For implementation method two, the CSI model can include, for example, the unilateral CSI prediction model and the bilateral CSI model shown in Figure 1e. The bilateral CSI model comprises a CSI compression model and a CSI recovery model; the CSI model can also be, for example, the bilateral CSI model shown in Figure 1f, comprising a CSI prediction compression model and a CSI recovery prediction model.

[0166] In some embodiments, for implementation one, the training dataset for training the CSI model includes CSI data from multiple historical moments; for implementation two, the training dataset for training the CSI model includes CSI data from multiple historical moments and CSI data from at least one future moment. Based on this, embodiments of this disclosure provide a communication method that uses first information to indicate at least one moment, thereby enabling channel measurements to be performed at the at least one moment indicated by the first information to obtain a training dataset for training a CSI model.

[0167] Referring to Figure 2a, Figure 2a is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure. As shown in Figure 2a, the communication method includes the following steps:

[0168] In step S2101, the terminal device performs channel measurement at at least once at a time based on the first information to obtain the CSI at at least once; the first information is determined by at least one of the following: network device configuration; predefined; configured reference signal resources.

[0169] In some embodiments, the first information is used to indicate at least one time point, the CSI at at least one time point is used to train a CSI model, and the CSI model is used to process CSI.

[0170] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0171] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0172] In some embodiments, the CSI model can be, for example, the bilateral CSI model illustrated in Figure 1c, comprising two components: an encoder and a decoder. The encoder is used for CSI compression processing, and the decoder is used for CSI compression recovery processing.

[0173] In some embodiments, the CSI model may include, for example, the one-sided CSI prediction model and the two-sided CSI model illustrated in Figure 1e. The two-sided CSI model includes two components: a CSI compression model and a CSI recovery model. The one-sided CSI prediction model is used for CSI prediction, the CSI compression model is used for CSI compression processing, and the CSI recovery model is used for CSI compression recovery processing.

[0174] In some embodiments, the CSI model can be, for example, the bilateral CSI model illustrated in Figure 1f, comprising two components: a CSI prediction compression model and a CSI recovery prediction model. The CSI prediction compression model is used for CSI prediction and compression processing, while the CSI recovery prediction model is used for CSI compression and recovery processing.

[0175] In some embodiments, at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment.

[0176] In some embodiments, for the bilateral CSI model exemplified in FIG1c, multiple first moments can be used as multiple historical moments, and the bilateral CSI model can be trained by measuring the CSI at multiple first moments.

[0177] In some embodiments, for the one-sided CSI prediction model and the two-sided CSI model exemplified in FIG1e, multiple first moments can be used as multiple historical moments, and at least one second moment can be used as at least one future moment. The CSI of multiple first moments and the CSI of at least one second moment are used to train the one-sided CSI prediction model and the two-sided CSI model exemplified in FIG1e.

[0178] In some embodiments, for the bilateral CSI model exemplified in FIG1f, multiple first moments can be used as multiple historical moments, and at least one second moment can be used as at least one future moment. The CSI of multiple first moments and the CSI of at least one second moment are used to train the bilateral CSI model exemplified in FIG1f.

[0179] In some embodiments, the CSI at at least one moment is obtained by channel measurement based on reference signal resources, which include at least one of the following: periodic reference signal resources; semi-continuous reference signal resources; and aperiodic reference signal resources.

[0180] In some embodiments, the reference signal resource is a downlink reference signal resource.

[0181] In some embodiments, the CSI at at least one moment is obtained by the terminal device through channel measurement. For example, the network device pre-configures downlink reference signal resources and then sends downlink reference signals to the terminal device according to the configured downlink reference signal resources. The downlink reference signal resources may be time-frequency domain resources used by the network device to send downlink reference signals. The terminal device receives the downlink reference signal at at least one moment according to the downlink reference signal resources, performs channel measurement based on the received downlink reference signal, and obtains the CSI at at least one moment.

[0182] In some embodiments, CSI may include at least one of the following: full-channel information, eigenvectors corresponding to the full-channel information, and other information obtained after preprocessing the full-channel information. The full-channel information may be, for example, a channel gain matrix; the eigenvectors corresponding to the full-channel information may be obtained by eigenvalue decomposition of the channel gain matrix; and the preprocessing of the full-channel information may be, for example, performing a discrete Fourier transform (DFT) on the full-channel information.

[0183] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0184] In some embodiments, the transmission mode of the downlink reference signal may include at least one of the following: periodic transmission mode, semi-persistent transmission mode, and aperiodic transmission mode. Correspondingly, the downlink reference signal resource includes at least one of the following: periodic downlink reference signal resource, semi-persistent downlink reference signal resource, and aperiodic downlink reference signal resource. For example, the downlink reference signal may be CSI-RS.

[0185] In some embodiments, the first information includes at least one of the following 1.1 to 1.6:

[0186] 1.1 The number of multiple first moments.

[0187] In some embodiments, M represents the quantity at the first moment, where M is a positive integer greater than 1.

[0188] 1.2 The time difference between two adjacent first moments.

[0189] The time difference between two adjacent first moments represents the time interval between them. In some embodiments, the time difference between any two adjacent first moments may be the same or different.

[0190] In some embodiments, the time difference between any two adjacent first moments is the same. (m) j Taking the time difference between the j-th first moment and the (j+1)-th first moment as an example, where j = 1, 2, ..., M-1, then: m j =m k (1)

[0191] Where j≠k, m k This represents the time difference between the k-th first moment and the (k+1)-th first moment.

[0192] 1.3, the number of at least one second time step.

[0193] In some embodiments, where D represents the number of the second time step, D is a positive integer greater than or equal to 1.

[0194] 1.4. The time difference between two adjacent second moments.

[0195] In some embodiments, if there are multiple second moments (i.e., D>1), then there are adjacent second moments. The time difference between two adjacent second moments represents the time interval between them. In some embodiments, the time difference between any two adjacent second moments may be the same or different.

[0196] In some embodiments, the time difference between any two adjacent second moments is the same. i Taking the time difference between the i-th second time point and the (i+1)-th second time point as an example, where i = 1, 2, ..., D-1, then: d i =d k (2)

[0197] Where i≠k, d k This represents the time difference between the k-th second time point and the (k+1)-th second time point.

[0198] In some embodiments, the time difference between any two adjacent first moments is the same, the time difference between any two adjacent second moments is the same, and the time difference between any two adjacent first moments is the same as the time difference between any two adjacent second moments. (m) j Let d represent the time difference between the j-th first moment and the (j+1)-th first moment. i Taking the time difference between the i-th second time point and the (i+1)-th second time point as an example, where j = 1, 2, ..., M-1 and i = 1, 2, ..., D-1, then for any i and j, we have: m j =d i .

[0199] 1.5 The time difference between the last first moment and the first second moment.

[0200] The last first moment refers to the latest first moment among multiple first moments. Let M be the number of multiple first moments, and T be the number of first moments. 1j Taking the j-th first moment as an example, the multiple first moments in chronological order are T. 11 T 12 , ..., T 1M Among them, T 1M That is, the last first moment.

[0201] The first second time point refers to the earliest second time point among at least one second time point. Let D be the number of at least one second time point, and T be the second time point. 2i Taking the i-th second moment as an example, then at least one second moment in chronological order is T. 21 T 22 , ..., T 2D Among them, T 21 This is the first second moment.

[0202] Therefore, the time difference between the last first moment and the first second moment is T. 1M With T 21 The time difference between the last first moment and the first second moment. Let J be the time difference between them, then J = T. 21 -T 1M .

[0203] In some embodiments, the first information includes the time difference between the last first time moment and the first second time moment. The correlation between the first time moment and the second time moment can be determined by the time difference between the last first time moment and the first second time moment. Based on this correlation, multiple first time moments and at least one second time moment can be determined, thereby obtaining multiple CSIs for the first time moment by performing channel measurements at multiple first time moments, obtaining at least one CSI for the second time moment by performing channel measurements at at least one second time moment, and training a CSI model using the CSIs of the multiple first time moments and the CSI of the at least one second time moment.

[0204] 1.6 Time difference offset: The time difference offset is used to determine the first second time point.

[0205] In some embodiments, the first second time point is the sum of the third time point and the time difference offset, i.e.: T 21 =T n +l0 (3)

[0206] Among them, T 21For the first second moment, T n For the third moment, l0 is the time difference offset.

[0207] In some embodiments, the third time point is a time point configured by the network device. For example, if the CSI at least one time point is obtained by the terminal device through channel measurement, the network device can send an indication message to the terminal device before performing the channel measurement to indicate the third time point. The terminal device can then determine the first second time point based on the third time point and the time difference offset. Alternatively, if the CSI at least one time point is obtained by the network device through channel measurement, the network device can pre-configure the third time point and determine the first second time point based on the third time point and the time difference offset.

[0208] In some embodiments, the third time point is the time when the CSI is reported. For example, the time when the CSI is reported may be the time when at least one second time point is reported. If there are multiple times when at least one second time point is reported, the third time point may be any one of these multiple times.

[0209] In this embodiment of the disclosure, multiple first moments and / or at least one second moment can be determined by the parameters included in the first information, thereby enabling the terminal device / network device to measure the CSI of multiple first moments and / or at least one second moment for training a CSI model.

[0210] In some embodiments, if the number of reference signal resources configured by the network device is one, the network device uses the time difference m between two adjacent first moments. j Repeatedly transmit downlink reference signals M times, and / or, the network device transmits the downlink reference signal based on the time difference d between two adjacent second moments. i The downlink reference signal is repeatedly transmitted D times. Here, M represents the number of multiple first-time points, and D represents the number of at least one second-time point.

[0211] In some embodiments, the first information is determined by at least one of the following: network device configuration, predefined, and configured reference signal resources.

[0212] In some embodiments, the first information is configured by a network device. For example, the network device sends the first information to a terminal device, and the terminal device receives the first information sent by the network device and performs channel measurement at at least one time based on the first information to obtain the CSI at at least one time.

[0213] In some embodiments, the first information is predefined. The first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j For example, then M and m j These are all predefined values.

[0214] In some embodiments, the first information is determined through configured reference signal resources, wherein the reference signal resources are configured by the network device. In some embodiments, the reference signal resources are downlink reference signal resources.

[0215] For example, the first information includes the number M of multiple first moments, and the time difference m between two adjacent first moments. j The network device is configured with 4 downlink reference signal resources, and the time interval between the 4 downlink reference signal resources is 5ms. Therefore, the terminal device can determine M=4 based on the downlink reference signal resources. j =5ms.

[0216] For example, the first information includes the time difference m between two adjacent first moments. j The number of at least one second time point D and the time difference d between two adjacent second time points i The network device is configured with a periodic downlink reference signal resource 1, with a period T = 6ms. The network device is also configured with downlink reference signal resource 2 and downlink reference signal resource 3, with a time interval of 3ms between them. Therefore, the terminal device can determine m based on the downlink reference signal resources. j =6ms, D=2, d i =3ms.

[0217] In some embodiments, the first information is determined through network device configuration and predefined methods. For example, the first information includes the number of multiple first moments, the time difference between two adjacent first moments, the number of at least one second moment, the time difference between two adjacent second moments, and the time difference between the last first moment and the first second moment. The terminal device can determine the number of multiple first moments, the time difference between two adjacent first moments, the number of at least one second moment, and the time difference between two adjacent second moments through network device configuration, while the time difference between the last first moment and the first second moment is predefined.

[0218] In some embodiments, the first information is determined through network device configuration and configured reference signal resources. For example, the first information includes the number of multiple first moments, the time difference between two adjacent first moments, the number of at least one second moment, the time difference between two adjacent second moments, and the time difference offset. The terminal device can determine the time difference offset through network device configuration, and determine the number of multiple first moments, the time difference between two adjacent first moments, the number of at least one second moment, and the time difference between two adjacent second moments through the configured reference signal resources.

[0219] In some embodiments, the first information is determined by predefined and configured reference signal resources. For example, the first information includes the number of multiple first moments, the time difference between two adjacent first moments, the number of at least one second moment, the time difference between two adjacent second moments, and the time difference offset. The terminal device can determine the time difference offset in a predefined manner and determine the number of multiple first moments, the time difference between two adjacent first moments, the number of at least one second moment, and the time difference between two adjacent second moments by using the configured reference signal resources.

[0220] In some embodiments, the first information is determined by at least one of the predefined and configured reference signal resources through network device configuration. For example, the first information includes the number of multiple first moments, the time difference between two adjacent first moments, the number of at least one second moment, the time difference between two adjacent second moments, the time difference between the last first moment and the first second moment, and the time difference offset. The terminal device can determine the time difference offset through network device configuration, determine the number of multiple first moments, the time difference between two adjacent first moments, the number of at least one second moment, and the time difference between two adjacent second moments through the configured reference signal resources, and determine the time difference between the last first moment and the first second moment through a predefined method.

[0221] The following describes the solutions of the embodiments of this disclosure with several specific examples.

[0222] In an exemplary embodiment, at least one moment includes a plurality of first moments, and the first information includes the number of the plurality of first moments and the time difference between two adjacent first moments, wherein the first information is determined by network device configuration and configured reference signal resources.

[0223] Specifically, the network device is configured with a first set of parameters, namely the number of multiple first time points, which can be represented by parameter M. The network device then sends this first set of parameters to the terminal device, which receives parameter M, where M = 5. The first information also includes a second set of parameters, namely the time difference m between two adjacent first time points. j The network device is configured with a periodic reference signal resource, namely CSI-RS resource, with a period T = 5ms. The terminal device can determine the time difference m between two adjacent first moments using the period T. j =5ms.

[0224] Terminal devices based on M and m jM first time points can be determined. Then, the terminal device performs channel measurements based on the configured reference signal resources to obtain the measured CSI at time point M+1 (the measured CSI represents the CSI obtained by the terminal device through channel measurements), including the measured CSI at the M first time points and the measured CSI at time point M+1. Based on the measured CSI at these 6 time points, the bilateral CSI model illustrated in Figure 1c can be trained.

[0225] In some embodiments, taking M=5 as an example, the measured CSI at time 6 (denoted as H6), the first predicted CSI at time 1 (denoted as a1), the first predicted CSI at time 2 (denoted as a2), the first predicted CSI at time 3 (denoted as a3), the first predicted CSI at time 4 (denoted as a4), and the first predicted CSI at time 5 (denoted as a5) can be input into the encoder. The encoder can compress H6 according to a1, a2, a3, a4, and a5 to obtain the first predicted CSI at time 6 and the binary bit stream. Here, a1 is obtained by inputting the measured CSI at time 1 (denoted as H1) and the corresponding first predicted CSI into the encoder. The process of obtaining a2, a3, a4, and a5 is similar and will not be repeated here. In some embodiments, H6 and a5 can also be input into the encoder, and the encoder can compress H6 according to a5 to obtain the first predicted CSI at time 6 and the binary bit stream.

[0226] Then, the binary bitstream, the second predicted CSI at time 1 (denoted as b1), the second predicted CSI at time 2 (denoted as b2), the second predicted CSI at time 3 (denoted as b3), the second predicted CSI at time 4 (denoted as b4), and the second predicted CSI at time 5 (denoted as b5) are input into the decoder to obtain the recovered CSI and the second predicted CSI at time 6. Here, b1 is obtained by inputting s1 (the binary bitstream obtained after the encoder compresses H1) and the corresponding second predicted CSI into the decoder. The process of obtaining b2, b3, b4, and b5 is similar and will not be repeated here. In some embodiments, the binary bitstream and b5 can also be input into the decoder, and the decoder can perform compression and recovery processing on the binary bitstream based on b5 to obtain the second predicted CSI and the recovered CSI at time 6.

[0227] The model parameters of the bilateral CSI model can be adjusted based on the recovered CSI at time 6 and the measured CSI at time 6.

[0228] In one exemplary embodiment, at least one moment includes a plurality of first moments and at least one second moment, and the first information includes the number M of the plurality of first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i The first information is determined by at least one of the following: the time difference J between the last first moment and the first second moment, and the time difference offset l0, wherein the first information is determined by at least one of the following: network device configuration, predefined, and configured reference signal resources.

[0229] Specifically, the network device is configured with multiple first time moments M, at least one second time moment D, and a time difference d between two adjacent second time moments. i M, D and d i It can be carried in a radio resource control (RRC) message. The network device sends an RRC message to the terminal device, and the terminal device receives the RRC message and obtains M, D, and d. i Where M = 5, D = 4, d i =5ms. The network device is configured with a periodic reference signal resource, namely CSI-RS resource, with a period T = 5ms. The terminal device can determine the time difference m between two adjacent first moments using the period T. j =5ms.

[0230] In some embodiments, the network device is also configured with a time difference J = 5ms between the last first moment and the first second moment.

[0231] In some embodiments, the network device is further configured with a time difference offset l0. The terminal device can determine the first second time based on the time difference offset l0, wherein the first second time is the sum of the third time and the time difference offset. The third time is the time configured by the network device; or, the third time is the time when CSI is reported.

[0232] In one exemplary embodiment, at least one moment includes a plurality of first moments and at least one second moment, and the first information includes the number M of the plurality of first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i .

[0233] In some embodiments, the first information is determined by configured reference signal resources.

[0234] For example, network devices can configure multiple periods of CSI-RS resources based on channel changes or the movement speed of terminal devices. Taking a network device configuring two periods of CSI-RS resources as an example, where the periods of these two periods are the same, if the CSI obtained from channel measurement based on the first period of CSI-RS resources does not meet the requirements for training the CSI model, channel measurement can be performed based on the second period of CSI-RS resources. Based on the offset values ​​of these two periods of CSI-RS resources within one period, the time difference *m* between two adjacent first moments can be determined. j .

[0235] For example, a network device can be configured with one periodic CSI-RS resource and multiple aperiodic CSI-RS resources. The CSI at a first moment is obtained by performing channel measurements based on the periodic CSI-RS resource, and the CSI at a second moment is obtained by performing channel measurements based on the multiple aperiodic CSI-RS resources. Based on the number of multiple aperiodic CSI-RS resources, the number D of at least one second moment can be determined. Based on the time intervals between the multiple aperiodic CSI-RS resources, the time difference d between two adjacent second moments can be determined. i .

[0236] Terminal devices based on M and m j M first moments can be determined based on D and d. i D second time points can be determined, and then the terminal device performs channel measurements based on the configured downlink reference signal resources to obtain M first time point CSIs and D second time point CSIs.

[0237] In some embodiments, the one-sided CSI prediction model and the two-sided CSI model exemplified in Figure 1e can be trained based on M first-time CSIs and D second-time CSIs.

[0238] For example, M CSI values ​​at first time points can be input as CSI values ​​at multiple historical time points into a one-sided CSI prediction model. The one-sided CSI prediction model outputs D predicted CSI values ​​at second time points. Based on the D predicted CSI values ​​at second time points and the D actually measured CSI values ​​at second time points, the model parameters of the one-sided CSI prediction model are adjusted. Alternatively, the D CSI values ​​at second time points can be input into the CSI compression part of the model to obtain a binary bitstream. Then, the binary bitstream is compressed and restored using the CSI recovery part of the model to obtain D restored CSI values ​​at second time points. Based on the restored D CSI values ​​at second time points and the D actually measured CSI values ​​at second time points, the model parameters of the two-sided CSI model are adjusted.

[0239] In some embodiments, the bilateral CSI model exemplified in Figure 1f can be trained based on M first-time CSIs and D second-time CSIs.

[0240] For example, M first-time CSIs can be used as inputs to the CSI prediction and compression part of the CSI prediction and compression part of the model. The CSI prediction and compression part of the model predicts and compresses the M first-time CSIs and outputs a binary bit stream. Then, the binary bit stream is compressed and recovered by the CSI recovery prediction part of the model to obtain D recovered second-time CSIs. Based on the recovered D second-time CSIs and the actual measured D second-time CSIs, the model parameters of the bilateral CSI model are adjusted.

[0241] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0242] Referring to Figure 2b, Figure 2b is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure. As shown in Figure 2b, the communication method includes the following steps:

[0243] Step S2201: The network device sends the first information to the terminal device.

[0244] In some embodiments, the first information is network device configuration information, which is used to indicate at least one moment. The first information can be found in the relevant descriptions of steps 1.1 to 1.6 in step S2101 of Figure 2a, and will not be repeated here.

[0245] The network device sends the first information to the terminal device, and the terminal device receives the first information sent by the network device.

[0246] In step S2202, the terminal device performs channel measurement at at least once based on the first information to obtain the CSI at at least once.

[0247] In some embodiments, at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment.

[0248] In some embodiments, the CSI at at least one moment is obtained by the terminal device through channel measurement based on reference signal resources, which include at least one of the following: periodic reference signal resources; semi-continuous reference signal resources; and aperiodic reference signal resources.

[0249] In some embodiments, the reference signal resource is a downlink reference signal resource.

[0250] In some embodiments, optional implementations of step S2202 can be found in optional implementations of step S2101 in FIG2a, and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0251] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2202. For example, step S2202 may be implemented as a standalone embodiment, and step S2201 + step S2202 may be implemented as a standalone embodiment, but is not limited thereto.

[0252] In some embodiments, step S2201 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0253] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0254] Referring to Figure 2c, which is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure, the communication method includes the following steps:

[0255] Step S2301: The network device sends a first part of parameters to the terminal device. The first information includes the first part of parameters and the second part of parameters.

[0256] In some embodiments, the first information is used to indicate at least one moment. The first information can be found in the relevant descriptions of steps 1.1 to 1.6 in step S2101 of FIG2a, and will not be repeated here.

[0257] In some embodiments, the first information includes a first part of parameters and a second part of parameters, wherein the first part of parameters is determined by the network device configuration, that is, the network device sends the first part of parameters to the terminal device, and the terminal device receives the first part of parameters sent by the network device.

[0258] The first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i Taking the time difference J and time difference offset l0 between the last first moment and the first second moment as an example, the first part of the parameters may include, for example, M and m. j D, d i The second part of the parameters may include, for example, J and l0; the first part of the parameters may include, for example, M and m. j The second part of the parameters may include, for example, D and d. iThe first part of the parameters may include, for example, J and l0, and the second part of the parameters may include, for example, M and m. j D, d i ,etc.

[0259] In some embodiments, the second part of the parameters is determined by predefinition.

[0260] In some embodiments, the second set of parameters is determined by configured reference signal resources. For example, the second set of parameters includes D and d. i The network device is configured with downlink reference signal resource 2 and downlink reference signal resource 3. The time interval between downlink reference signal resource 2 and downlink reference signal resource 3 is 3ms. Therefore, the terminal device can determine D=2 and d based on the downlink reference signal resources. i =3ms.

[0261] In some embodiments, the second set of parameters is determined using predefined and configured reference signal resources. For example, the second set of parameters includes D, d i J and l0, where J and l0 are determined in a predefined manner, and D and d i It is determined by the configured reference signal resources.

[0262] In step S2302, the terminal device performs channel measurement at at least once based on the first information to obtain the CSI at at least once.

[0263] In some embodiments, at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment.

[0264] In some embodiments, the CSI at at least one moment is obtained by the terminal device through channel measurement based on reference signal resources, which include at least one of the following: periodic reference signal resources; semi-continuous reference signal resources; and aperiodic reference signal resources.

[0265] In some embodiments, the reference signal resource is a downlink reference signal resource.

[0266] In some embodiments, optional implementations of step S2302 can be found in optional implementations of step S2101 in FIG2a, and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0267] The communication method involved in the embodiments of this disclosure may include at least one of steps S2301 to S2302. For example, step S2302 may be implemented as a standalone embodiment, and step S2301 + step S2302 may be implemented as a standalone embodiment, but is not limited thereto.

[0268] In some embodiments, step S2301 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0269] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0270] Referring to Figure 2d, which is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure, the communication method includes the following steps:

[0271] Step S2401: The network device sends indication information to the terminal device; the indication information is used to indicate first information, or the indication information is used to indicate a first part of parameters, the first information including a first part of parameters and a second part of parameters.

[0272] In some embodiments, the first information is used to indicate at least one moment. The first information can be found in the relevant descriptions of steps 1.1 to 1.6 in step S2101 of FIG2a, and will not be repeated here.

[0273] In some embodiments, a number of parameter combinations can be pre-configured. These parameter combinations can be in the form of a list or other possible forms, and each parameter combination includes the values ​​of one or more parameters. The process by which a network device indicates the first information through indication information is the process of indicating a set of parameter combinations among multiple parameter combinations through indication information.

[0274] The first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i For example, an exemplary combination of parameters can be found in Table 1 below:

[0275] Table 1

[0276] In Table 1, the first column is the parameter combination identifier, and the second to fourth columns are the number M of multiple first moments and the time difference m between two adjacent first moments, respectively. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i .

[0277] For example, the indication information can be a parameter combination identifier. The network device sends the indication information to the terminal device. Based on the indication information, the terminal device can determine one parameter combination from the four parameter combinations in Table 1, thereby determining the first information, namely the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i .

[0278] Taking the parameter combinations in Table 1 as an example, if the indication information is parameter combination identifier 2, then the terminal device can determine the first information based on the indication information, that is, the number of multiple first moments M = 5, and the time difference m between two adjacent first moments. j =5, the number of at least one second time point D = 2, the time difference d between two adjacent second time points i =2.

[0279] In some embodiments, the first information includes a first part of parameters and a second part of parameters. The first part of parameters is determined by the network device configuration method, that is, the network device sends indication information to the terminal device, and the terminal device receives the indication information sent by the network device and determines the first part of parameters according to the indication information.

[0280] The first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i Taking the time difference J and time difference offset l0 between the last first moment and the first second moment as an example, the first part of the parameters may include, for example, M and m. j D, d i The second part of the parameters may include, for example, J and l0; the first part of the parameters may include, for example, M and m. j The second part of the parameters may include, for example, D and d. i The first part of the parameters may include, for example, J and l0, and the second part of the parameters may include, for example, M and m. j D, d i ,etc.

[0281] In some embodiments, a number of parameter combinations can be pre-configured. These parameter combinations can be in the form of a list or other possible forms, and each parameter combination includes the values ​​of one or more parameters. The process by which the network device indicates the first part of the parameters through indication information is the process of indicating a set of parameter combinations among multiple parameter combinations through indication information.

[0282] Taking the parameter combination in Table 1 as an example, the first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i The time difference J between the last first moment and the first second moment, and the time difference offset l0, are parameters in the first part, including M and m. j D, d i If the indication information is parameter combination identifier 1, then the terminal device can determine the first part of the parameters based on the indication information, that is, the number of multiple first moments M = 4, and the time difference m between two adjacent first moments. j =2, the number of at least one second time point D = 1, the time difference d between two adjacent second time points i =1.

[0283] In some embodiments, the second part of the parameters is determined by predefinition.

[0284] In some embodiments, the second set of parameters is determined by configured reference signal resources. For example, the second set of parameters includes D and d. i The network device is configured with downlink reference signal resource 2 and downlink reference signal resource 3. The time interval between downlink reference signal resource 2 and downlink reference signal resource 3 is 3ms. Therefore, the terminal device can determine D=2 and d based on the downlink reference signal resources. i =3ms.

[0285] In some embodiments, the second set of parameters is determined using predefined and configured reference signal resources. For example, the second set of parameters includes D, d i J and l0, where J and l0 are determined in a predefined manner, and D and d i It is determined by the configured reference signal resources.

[0286] In step S2402, the terminal device performs channel measurement at at least once based on the first information to obtain the CSI at at least once.

[0287] In some embodiments, at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment.

[0288] In some embodiments, the CSI at at least one moment is obtained by the terminal device through channel measurement based on reference signal resources, which include at least one of the following: periodic reference signal resources; semi-continuous reference signal resources; and aperiodic reference signal resources.

[0289] In some embodiments, the reference signal resource is a downlink reference signal resource.

[0290] The following is a specific example to illustrate the solution of this disclosure embodiment.

[0291] In one exemplary embodiment, at least one moment includes a plurality of first moments and at least one second moment, and the first information includes the number M of the plurality of first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i .

[0292] In some embodiments, the first information is determined through network device configuration.

[0293] For example, some parameter combinations can be pre-configured, as shown in Table 1. The network device can determine the first information by indicating one of the parameter combinations from the above combinations based on channel changes or the terminal device's movement speed. Then, based on the first information, the terminal device performs channel measurements at at least once to obtain the CSI at at least once.

[0294] For example, if the indication information is parameter combination identifier 1, then based on the indication information, the first information can be determined, where the number of multiple first moments is M = 4, and the time difference between two adjacent first moments is m. j =2, the number of at least one second time point D = 1, the time difference d between two adjacent second time points i =1.

[0295] In some embodiments, optional implementations of step S2402 can be found in optional implementations of step S2101 in FIG2a, and other related parts in the embodiments involved in FIG2a, which will not be repeated here.

[0296] The communication method involved in the embodiments of this disclosure may include at least one of steps S2401 to S2402. For example, step S2402 may be implemented as a standalone embodiment, and step S2401 + step S2402 may be implemented as a standalone embodiment, but is not limited thereto.

[0297] In some embodiments, step S2401 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0298] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0299] Referring to Figure 2e, which is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure, the communication method includes the following steps:

[0300] In step S2501, the network device performs channel measurement at at least once based on the first information to obtain the CSI at at least once; the first information is determined by at least one of the following: terminal device reporting indication; predefined; configured reference signal resources.

[0301] In some embodiments, the first information is used to indicate at least one time point, the CSI at at least one time point is used to train a CSI model, and the CSI model is used to process CSI.

[0302] In some embodiments, the CSI model can be, for example, the bilateral CSI model illustrated in Figure 1c, comprising two components: an encoder and a decoder. The encoder is used for CSI compression processing, and the decoder is used for CSI compression recovery processing.

[0303] In some embodiments, the CSI model may include, for example, the one-sided CSI prediction model and the two-sided CSI model illustrated in Figure 1e. The two-sided CSI model includes two components: a CSI compression model and a CSI recovery model. The one-sided CSI prediction model is used for CSI prediction, the CSI compression model is used for CSI compression processing, and the CSI recovery model is used for CSI compression recovery processing.

[0304] In some embodiments, the CSI model can be, for example, the bilateral CSI model illustrated in Figure 1f, comprising two components: a CSI prediction compression model and a CSI recovery prediction model. The CSI prediction compression model is used for CSI prediction and compression processing, while the CSI recovery prediction model is used for CSI compression and recovery processing.

[0305] In some embodiments, at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment.

[0306] In some embodiments, for the bilateral CSI model exemplified in FIG1c, multiple first moments can be used as multiple historical moments, and the bilateral CSI model can be trained by measuring the CSI at multiple first moments.

[0307] In some embodiments, for the one-sided CSI prediction model and the two-sided CSI model exemplified in FIG1e, multiple first moments can be used as multiple historical moments, and at least one second moment can be used as at least one future moment. The CSI of multiple first moments and the CSI of at least one second moment are used to train the one-sided CSI prediction model and the two-sided CSI model exemplified in FIG1e.

[0308] In some embodiments, for the bilateral CSI model exemplified in FIG1f, multiple first moments can be used as multiple historical moments, and at least one second moment can be used as at least one future moment. The CSI of multiple first moments and the CSI of at least one second moment are used to train the bilateral CSI model exemplified in FIG1f.

[0309] In some embodiments, the CSI at at least one moment is obtained by channel measurement based on reference signal resources, which include at least one of the following: periodic reference signal resources; semi-continuous reference signal resources; and aperiodic reference signal resources.

[0310] In some embodiments, the reference signal resource is an uplink reference signal resource.

[0311] In some embodiments, the CSI at at least one moment is obtained by the network device through channel measurement. For example, the network device pre-configures uplink reference signal resources, which may be time-frequency domain resources for the terminal device to transmit uplink reference signals. Then, the network device can send relevant parameters of the uplink reference signal to the terminal device, which may include information such as the period and bandwidth of the uplink reference signal. The terminal device transmits an uplink reference signal to the network device on the configured uplink reference signal resources according to the relevant parameters. The network device receives the uplink reference signal at at least one moment based on the uplink reference signal resources, performs channel measurement based on the received uplink reference signal, and obtains the CSI at at least one moment.

[0312] In some embodiments, the transmission mode of the uplink reference signal may include at least one of the following: periodic transmission mode, semi-persistent transmission mode, and aperiodic transmission mode. Correspondingly, the uplink reference signal resource includes at least one of the following: periodic uplink reference signal resource, semi-persistent uplink reference signal resource, and aperiodic uplink reference signal resource. For example, the uplink reference signal may be a sounding reference signal (SRS).

[0313] In some embodiments, the first information is used to indicate at least one moment. The first information can be found in the relevant descriptions of steps 1.1 to 1.6 in step S2101 of FIG2a, and will not be repeated here.

[0314] In some embodiments, the first information is determined by at least one of the following: a terminal device reporting instruction; a predefined reference signal resource; or a configured reference signal resource.

[0315] In some embodiments, the first information is indicated by a report from a terminal device. For example, the terminal device sends the first information to a network device, and the network device receives the first information sent by the terminal device, and performs channel measurement at at least one moment based on the first information to obtain the CSI at at least one moment.

[0316] In some embodiments, the first information is predefined.

[0317] In some embodiments, the first information is determined by configured reference signal resources, wherein the reference signal resources are configured by the network device.

[0318] For example, the first information includes the number M of multiple first moments, and the time difference m between two adjacent first moments. j The network device is configured with 5 reference signal resources, and the time interval between the 5 reference signal resources is 6ms. Therefore, the network device can determine M=5 based on the reference signal resources. j = 6ms.

[0319] In some embodiments, the first information is determined through instructions reported by the terminal device and a predefined method. For example, the first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i The time difference J between the last first moment and the first second moment can be determined by network devices through instructions reported by terminal devices. j D and d i , while J is predefined.

[0320] In some embodiments, the first information is determined by reference signal resources reported and configured by the terminal device. For example, the first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i The time difference J between the last first moment and the first second moment can be determined by the network device through instructions reported by the terminal device. M and m are then determined using the configured reference signal resources. j D and d i .

[0321] In some embodiments, the first information is determined through predefined and configured reference signal resources. For example, the first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points.i The time difference offset l0 can be determined by the network device in a predefined manner, and M and m can be determined by the configured reference signal resources. j D and d i .

[0322] In some embodiments, the first information is determined by at least one of the following: an indication reported by the terminal device, a predefined reference signal resource, and a configured reference signal resource. For example, the first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i The time difference J between the last first moment and the first second moment can be determined by the network device through instructions reported by the terminal device. M and m are then determined using the configured reference signal resources. j D and d are determined through a predefined method. i .

[0323] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0324] Referring to Figure 2f, Figure 2f is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure. As shown in Figure 2f, the communication method includes the following steps:

[0325] Step S2601: The terminal device sends the first information to the network device.

[0326] In some embodiments, the first information is used to indicate at least one moment. The first information can be found in the relevant descriptions of steps 1.1 to 1.6 in step S2101 of FIG2a, and will not be repeated here.

[0327] The terminal device sends the first information to the network device, and the network device receives the first information sent by the terminal device.

[0328] In step S2602, the network device performs channel measurement at at least one moment based on the first information to obtain the CSI at at least one moment.

[0329] In some embodiments, at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment.

[0330] In some embodiments, the CSI at at least one moment is obtained by the network device through channel measurement based on reference signal resources, which include at least one of the following: periodic reference signal resources; semi-persistent reference signal resources; and aperiodic reference signal resources.

[0331] In some embodiments, the reference signal resource is an uplink reference signal resource.

[0332] In some embodiments, optional implementations of step S2602 can be found in optional implementations of step S2501 in FIG2e, and other related parts in the embodiments involved in FIG2e, which will not be repeated here.

[0333] The communication method involved in the embodiments of this disclosure may include at least one of steps S2601 to S2602. For example, step S2602 may be implemented as a standalone embodiment, and step S2601 + step S2602 may be implemented as a standalone embodiment, but is not limited thereto.

[0334] In some embodiments, step S2601 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0335] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0336] Referring to Figure 2g, which is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure, the communication method includes the following steps:

[0337] Step S2701: The terminal device sends a first part of parameters to the network device. The first information includes the first part of parameters and the second part of parameters.

[0338] In some embodiments, the first information is used to indicate at least one moment. The first information can be found in the relevant descriptions of steps 1.1 to 1.6 in step S2101 of FIG2a, and will not be repeated here.

[0339] In some embodiments, the first information includes a first part of parameters and a second part of parameters, wherein the first part of parameters is determined by a terminal device reporting instruction, that is, the terminal device sends the first part of parameters to the network device, and the network device receives the first part of parameters sent by the terminal device.

[0340] The first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i Taking the time difference J and time difference offset l0 between the last first moment and the first second moment as an example, the first part of the parameters may include, for example, M and m. j D, d iThe second part of the parameters may include, for example, J and l0; the first part of the parameters may include, for example, M and m. j And J, the second part of the parameters may include, for example, D, d i The first part of the parameters may include, for example, J and l0, and the second part of the parameters may include, for example, M and m. j D, d i ,etc.

[0341] In some embodiments, the second part of the parameters is determined by predefinition.

[0342] In some embodiments, the second set of parameters is determined by configured reference signal resources. For example, the second set of parameters includes M and m. j If the network device is configured with uplink reference signal resource 1 and uplink reference signal resource 2, then the network device can determine M = 2 and m based on the reference signal resources. j It is equal to the time interval between uplink reference signal resource 1 and uplink reference signal resource 2.

[0343] In some embodiments, the second set of parameters is determined through predefined and configured reference signal resources. For example, the second set of parameters includes M, m j D, d i , where M and m j D and d are determined through a predefined method. i It is determined by the configured reference signal resources.

[0344] In step S2702, the network device performs channel measurement at at least one moment based on the first information to obtain the CSI at at least one moment.

[0345] In some embodiments, at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment.

[0346] In some embodiments, the CSI at at least one moment is obtained by the network device through channel measurement based on reference signal resources, and the reference signal resources include at least one of the following: periodic reference signal resources; semi-persistent reference signal resources; and aperiodic reference signal resources.

[0347] In some embodiments, the reference signal resource is an uplink reference signal resource.

[0348] In some embodiments, optional implementations of step S2702 can be found in optional implementations of step S2501 in FIG2e, and other related parts in the embodiments involved in FIG2e, which will not be repeated here.

[0349] The communication method involved in the embodiments of this disclosure may include at least one of steps S2701 to S2702. For example, step S2702 may be implemented as a standalone embodiment, and step S2701 + step S2702 may be implemented as a standalone embodiment, but is not limited thereto.

[0350] In some embodiments, step S2701 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0351] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0352] Referring to Figure 2h, Figure 2h is an exemplary interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure. As shown in Figure 2h, the communication method includes the following steps:

[0353] Step S2801: The terminal device sends indication information to the network device; the indication information is used to indicate first information, or the indication information is used to indicate a first part of parameters, the first information including a first part of parameters and a second part of parameters.

[0354] In some embodiments, the first information is used to indicate at least one moment. The first information can be found in the relevant descriptions of steps 1.1 to 1.6 in step S2101 of FIG2a, and will not be repeated here.

[0355] In some embodiments, parameter combinations can be pre-configured in the form of a list or other possible forms, with each parameter combination including the values ​​of one or more parameters. The process by which the terminal device indicates the first information through indication information is the process of indicating a set of parameter combinations among multiple parameter combinations through indication information.

[0356] Taking the parameter combinations in Table 1 as an example, if the indication information is parameter combination identifier 3, then the network device can determine the first information based on the indication information, that is, the number of multiple first moments M = 8, and the time difference m between two adjacent first moments. j =5, the number of at least one second time point D = 4, the time difference d between two adjacent second time points i =5.

[0357] In some embodiments, the first information includes a first part of parameters and a second part of parameters. The first part of parameters is determined by a terminal device reporting an instruction, that is, the terminal device sends instruction information to the network device, and the network device receives the instruction information sent by the terminal device and determines the first part of parameters based on the instruction information.

[0358] In some embodiments, some parameter combinations can be pre-configured. These parameter combinations can be in the form of a list or other possible forms, and each parameter combination includes the values ​​of one or more parameters. The process by which the terminal device indicates the first part of the parameters through indication information is the process of indicating a set of parameter combinations among multiple parameter combinations through indication information.

[0359] Taking the parameter combination in Table 1 as an example, the first information includes the number M of multiple first moments and the time difference m between two adjacent first moments. j The number of at least one second time point D, and the time difference d between two adjacent second time points. i The time difference J between the last first moment and the first second moment, the first part of the parameters includes M and m. j D, d i If the indication information is parameter combination identifier 4, then the network device can determine the first part of the parameters based on the indication information, that is, the number of multiple first moments M = 10, and the time difference m between two adjacent first moments. j =5, the number of at least one second time point D = 1, the time difference d between two adjacent second time points i =1.

[0360] In some embodiments, the second part of the parameters is determined by predefinition.

[0361] In some embodiments, the second part of the parameters is determined by the configured reference signal resources. For example, if the second part of the parameters includes D, and the network device is configured with uplink reference signal resource 1, then the network device can determine D = 2 based on the uplink reference signal resource.

[0362] In some embodiments, the second set of parameters is determined using predefined and configured reference signal resources. For example, the second set of parameters includes D, d i and l0, where l0 is determined in a predefined manner, D and d i It is determined by the configured reference signal resources.

[0363] In step S2802, the network device performs channel measurement at at least one moment based on the first information to obtain the CSI at at least one moment.

[0364] In some embodiments, at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment.

[0365] In some embodiments, the CSI at at least one moment is obtained by the network device through channel measurement based on reference signal resources, which include at least one of the following: periodic reference signal resources; semi-persistent reference signal resources; and aperiodic reference signal resources.

[0366] In some embodiments, the reference signal resource is an uplink reference signal resource.

[0367] In some embodiments, optional implementations of step S2802 can be found in optional implementations of step S2501 in FIG2e, and other related parts in the embodiments involved in FIG2e, which will not be repeated here.

[0368] The communication method involved in the embodiments of this disclosure may include at least one of steps S2801 to S2802. For example, step S2802 may be implemented as a standalone embodiment, and step S2801 + step S2802 may be implemented as a standalone embodiment, but is not limited thereto.

[0369] In some embodiments, step S2801 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0370] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0371] Referring to Figure 3, which is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure. As shown in Figure 3, the communication method includes the following steps:

[0372] Step S3101: Based on the first information, perform channel measurement at at least one time to obtain the CSI at at least one time.

[0373] In some embodiments, the first information is used to indicate at least one time point, the CSI at at least one time point is used to train a CSI model, and the CSI model is used to process CSI.

[0374] In some embodiments, the CSI model can be, for example, the bilateral CSI model illustrated in Figure 1c, comprising two components: an encoder and a decoder. The encoder is used for CSI compression processing, and the decoder is used for CSI compression recovery processing.

[0375] In some embodiments, the CSI model may include, for example, the one-sided CSI prediction model and the two-sided CSI model illustrated in Figure 1e. The two-sided CSI model includes two components: a CSI compression model and a CSI recovery model. The one-sided CSI prediction model is used for CSI prediction, the CSI compression model is used for CSI compression processing, and the CSI recovery model is used for CSI compression recovery processing.

[0376] In some embodiments, the CSI model can be, for example, the bilateral CSI model illustrated in Figure 1f, comprising two components: a CSI prediction compression model and a CSI recovery prediction model. The CSI prediction compression model is used for CSI prediction and compression processing, while the CSI recovery prediction model is used for CSI compression and recovery processing.

[0377] In some embodiments, the CSI at at least one moment is obtained by channel measurement based on reference signal resources, which include at least one of the following: periodic reference signal resources; semi-continuous reference signal resources; and aperiodic reference signal resources.

[0378] In some embodiments, the reference signal resources include uplink reference signal resources and / or downlink reference signal resources.

[0379] In some embodiments, the CSI at at least one moment is obtained by the terminal device through channel measurement. For example, the network device pre-configures downlink reference signal resources and then sends downlink reference signals to the terminal device according to the configured downlink reference signal resources. The terminal device receives the downlink reference signals at at least one moment according to the downlink reference signal resources, performs channel measurement based on the received downlink reference signals, and obtains the CSI at at least one moment.

[0380] In some embodiments, the CSI at at least one moment is obtained by the network device through channel measurement. For example, the network device pre-configures uplink reference signal resources. Then, the network device can send relevant parameters of the uplink reference signal to the terminal device. These parameters may include information such as the period and bandwidth of the uplink reference signal. The terminal device sends an uplink reference signal to the network device on the configured uplink reference signal resources based on the relevant parameters. The network device receives the uplink reference signal at at least one moment based on the uplink reference signal resources, performs channel measurement based on the received uplink reference signal, and obtains the CSI at at least one moment.

[0381] In some embodiments, the CSI at at least one moment is obtained by channel measurement jointly performed by the terminal device and the network device. For example, at least one moment includes multiple first moments and / or at least one second moment, where the second moment is later than the first moment. The terminal device performs channel measurement at multiple first moments to obtain multiple first-time CSIs, and the network device performs channel measurement at at least one second moment to obtain at least one second-time CSI; for example, the network device performs channel measurement at multiple first moments to obtain multiple first-time CSIs, and the terminal device performs channel measurement at at least one second moment to obtain at least one second-time CSI.

[0382] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0383] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed, which includes units or modules for implementing the steps performed by the terminal device in any of the above methods.

[0384] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0385] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0386] Figure 4a is an exemplary structural diagram of a terminal device according to an embodiment of this disclosure. The terminal device 4100 is used to perform any of the above methods. In some embodiments, as shown in Figure 4a, the terminal device 4100 may include:

[0387] Processing module 4101 is used to perform channel measurement at at least one moment based on the first information, and obtain the CSI at at least one moment;

[0388] The first information is used to indicate at least one time point, the CSI at at least one time point is used to train the CSI model, and the CSI model is used to process the CSI.

[0389] In some embodiments, at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment.

[0390] In some embodiments, the first information includes at least one of the following:

[0391] The number of multiple first moments;

[0392] The time difference between two adjacent first moments;

[0393] At least the number of second time points;

[0394] The time difference between two adjacent second moments;

[0395] The time difference between the last first moment and the first second moment;

[0396] Time difference offset is used to determine the first second time point.

[0397] In some embodiments, the time difference between any two adjacent first moments is the same; and / or, the time difference between any two adjacent second moments is the same.

[0398] In some embodiments, the time difference between any two adjacent first moments is the same; the time difference between any two adjacent second moments is the same; and the time difference between any two adjacent first moments is the same as the time difference between any two adjacent second moments.

[0399] In some embodiments, the first second time point is the sum of the third time point and the time difference offset, wherein:

[0400] The third moment is the moment when network devices are configured; or, the third moment is the moment when CSI is reported.

[0401] In some embodiments, the CSI at at least one moment is obtained by channel measurement based on reference signal resources, which include at least one of the following:

[0402] Periodic reference signal resources;

[0403] Semi-persistent reference signal resources;

[0404] Aperiodic reference signal resources.

[0405] In some embodiments, the first information is determined by at least one of the following:

[0406] Network equipment configuration;

[0407] Predefined;

[0408] Configured reference signal resources.

[0409] In some embodiments, a transceiver module 4102 is further included, the transceiver module 4102 being used for:

[0410] Receive the first message;

[0411] or,

[0412] The first part of the parameters in the first information is received, and the second part of the parameters in the first information is determined by predefined and / or configured reference signal resources. The first information includes the first part of the parameters and the second part of the parameters.

[0413] In some embodiments, a transceiver module 4102 is further included, the transceiver module 4102 being used for:

[0414] Receive instruction information; among which,

[0415] The instruction information is used to indicate the first information; or,

[0416] The indication information is used to indicate the first part of the parameters in the first information, and the second part of the parameters in the first information is determined by predefined and / or configured reference signal resources. The first information includes the first part of the parameters and the second part of the parameters.

[0417] Optionally, the transceiver module 4102 is used to perform at least one of the communication steps (such as steps S2201, S2301, S2401, S2601, S2701, and S2801, but not limited thereto) performed by the terminal device 4100 in any of the above methods, which will not be elaborated here. Optionally, the processing module 4101 is used to perform at least one of the other steps (such as steps S2101, S2202, S2302, and S2402, but not limited thereto) performed by the terminal device 4100 in any of the above methods, which will not be elaborated here.

[0418] Figure 4b is an exemplary structural diagram of a network device according to an embodiment of this disclosure. Network device 4200 is used to perform any of the above methods. In some embodiments, as shown in Figure 4b, network device 4200 may include:

[0419] Processing module 4201 is used to perform channel measurement at at least one moment based on the first information, and obtain the CSI at at least one moment;

[0420] The first information is used to indicate at least one time point, the CSI at at least one time point is used to train the CSI model, and the CSI model is used to process the CSI.

[0421] In some embodiments, at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment.

[0422] In some embodiments, the first information includes at least one of the following:

[0423] The number of multiple first moments;

[0424] The time difference between two adjacent first moments;

[0425] At least the number of second time points;

[0426] The time difference between two adjacent second moments;

[0427] The time difference between the last first moment and the first second moment;

[0428] Time difference offset is used to determine the first second time point.

[0429] In some embodiments, the time difference between any two adjacent first moments is the same; and / or, the time difference between any two adjacent second moments is the same.

[0430] In some embodiments, the time difference between any two adjacent first moments is the same; the time difference between any two adjacent second moments is the same; and the time difference between any two adjacent first moments is the same as the time difference between any two adjacent second moments.

[0431] In some embodiments, the first second time point is the sum of the third time point and the time difference offset, wherein:

[0432] The third moment is the moment when network devices are configured; or, the third moment is the moment when CSI is reported.

[0433] In some embodiments, the CSI at at least one moment is obtained by channel measurement based on reference signal resources, which include at least one of the following:

[0434] Periodic reference signal resources;

[0435] Semi-persistent reference signal resources;

[0436] Aperiodic reference signal resources.

[0437] In some embodiments, the first information is determined by at least one of the following:

[0438] Terminal device reports instructions;

[0439] Predefined;

[0440] Configured reference signal resources.

[0441] In some embodiments, a transceiver module 4202 is further included, the transceiver module 4202 being used for:

[0442] Receive the first message;

[0443] or,

[0444] The first part of the parameters in the first information is received, and the second part of the parameters in the first information is determined by predefined and / or configured reference signal resources. The first information includes the first part of the parameters and the second part of the parameters.

[0445] In some embodiments, a transceiver module 4202 is further included, the transceiver module 4202 being used for:

[0446] Receive instruction information; among which,

[0447] The instruction information is used to indicate the first information; or,

[0448] The indication information is used to indicate the first part of the parameters in the first information, and the second part of the parameters in the first information is determined by predefined and / or configured reference signal resources. The first information includes the first part of the parameters and the second part of the parameters.

[0449] Optionally, the transceiver module 4202 is used to perform at least one of the communication steps (e.g., steps S2201, S2301, S2401, S2601, S2701, S2801, but not limited thereto) performed by the network device 4200 in any of the above methods, which will not be elaborated here. Optionally, the processing module 4201 is used to perform at least one of the other steps (e.g., steps S2501, S2602, S2702, S2802, but not limited thereto) performed by the network device 4200 in any of the above methods, which will not be elaborated here.

[0450] Figure 5a is an exemplary structural diagram of the communication device proposed in an embodiment of this disclosure. The communication device 5100 can be a network device (e.g., access network device, core network device, etc.), a terminal device (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal device in implementing any of the above methods. The communication device 5100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0451] As shown in Figure 5a, the communication device 5100 is used to execute any of the above methods. In some embodiments, the communication device 5100 includes one or more processors 5101. The processor 5101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 5100 is used to execute any of the above methods. Optionally, one or more processors 5101 are used to invoke instructions to cause the communication device 5100 to execute any of the above methods.

[0452] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps S2201, S2301, S2401, S2601, S2701, S2801, but not limited thereto), and the processor 5101 performs at least one of other steps (e.g., steps S2101, S2202, S2302, S2402, S2501, S2602, S2702, S2802, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated together. Optionally, terms such as transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface can be used interchangeably; terms such as transmitter, transmitter unit, transmitter, and transmitter circuit can be used interchangeably; and terms such as receiver, receiver unit, receiver, and receiver circuit can be used interchangeably.

[0453] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data and / or instructions. Optionally, one or more processors 5101 are used to invoke instructions stored in the memory 5103 to cause the communication device 5100 to perform any of the above methods. Optionally, all or part of the memory 5103 may also be located outside the communication device 5100. In an optional embodiment, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5103 and can be used to receive data and / or instructions from the memory 5103 or other devices, and can be used to send data and / or instructions to the memory 5103 or other devices. For example, the interface circuit 5104 can read data and / or instructions stored in the memory 5103 and send the data and / or instructions to the processor 5101.

[0454] The communication device 5100 described in the above embodiments may be a network device or a terminal device, but the scope of the communication device 5100 described in this disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5a. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0455] Figure 5b is an exemplary structural diagram of the chip proposed in an embodiment of this disclosure. For cases where the communication device 5100 can be a chip or a chip system, please refer to the structural diagram of the chip 5200 shown in Figure 5b, but it is not limited thereto.

[0456] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.

[0457] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 5200 further includes one or more memories 5203 for storing data and / or instructions. Optionally, all or part of the memories 5203 may be located outside of chip 5200. Optionally, the interface circuit 5202 is connected to the memories 5203, and the interface circuit 5202 can be used to receive data and / or instructions from the memories 5203 or other devices, and the interface circuit 5202 can be used to send data and / or instructions to the memories 5203 or other devices. For example, the interface circuit 5202 can read data and / or instructions stored in the memories 5203 and send the data and / or instructions to the processor 5201.

[0458] In some embodiments, the interface circuit 5202 performs at least one of the communication steps such as sending and / or receiving in the above-described method. The interface circuit 5202 performing at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps S2201, S2301, S2401, S2601, S2701, S2801, but not limited thereto) refers to, for example, the interface circuit 5202 performing data and / or instruction interaction between the processor 5201, the chip 5200, the memory 5203, or the transceiver device. In some embodiments, the processor 5201 performs at least one of other steps (e.g., steps S2101, S2202, S2302, S2402, S2501, S2602, S2702, S2802, but not limited thereto).

[0459] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0460] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0461] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0462] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0463] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0464] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0465] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

A communication method, characterized in that, The method includes: Based on the first information, channel measurements are performed at at least one time to obtain the channel state information (CSI) at the at least one time. Wherein, the first information is used to indicate the at least one time moment, the CSI at the at least one time moment is used to train the CSI model, and the CSI model is used to process the CSI. The method according to claim 1, characterized in that, The at least one moment includes a plurality of first moments and / or at least one second moment, wherein the second moment is later than the first moment. The method according to claim 2, characterized in that, The first information includes at least one of the following: The number of the multiple first moments; The time difference between two adjacent first moments; The number of at least one second time point; The time difference between two adjacent second moments; The time difference between the last first moment and the first second moment; Time difference offset, which is used to determine the first second moment. The method according to claim 3, characterized in that, The time difference between any two adjacent first moments is the same; and / or, the time difference between any two adjacent second moments is the same. The method according to claim 4, characterized in that, The time difference between any two adjacent first moments is the same; the time difference between any two adjacent second moments is the same; the time difference between any two adjacent first moments is the same as the time difference between any two adjacent second moments. The method according to any one of claims 3-5, characterized in that, The first second time point is the sum of the third time point and the time difference offset, where: The third moment is the moment when the network device is configured; or, the third moment is the moment when the CSI is reported. The method according to any one of claims 1-6, characterized in that, The CSI at at least one moment is obtained by channel measurement based on reference signal resources, which include at least one of the following: Periodic reference signal resources; Semi-persistent reference signal resources; Aperiodic reference signal resources. The method according to any one of claims 1-7, characterized in that, The method is executed by a terminal device, and the first information is determined by at least one of the following: Network equipment configuration; Predefined; Configured reference signal resources. The method according to any one of claims 1-7, characterized in that, The method is performed by a network device, and the first information is determined by at least one of the following: Terminal device reports instructions; Predefined; Configured reference signal resources. The method according to any one of claims 1-7, characterized in that, The method further includes: Receive the first information; or, The first part of the parameters in the first information is received, and the second part of the parameters in the first information is determined by predefined and / or configured reference signal resources. The first information includes the first part of the parameters and the second part of the parameters. The method according to any one of claims 1-7, characterized in that, The method further includes: Receive instruction information; among which, The indication information is used to indicate the first information; or... The indication information is used to indicate a first part of the parameters in the first information, and a second part of the parameters in the first information is determined by predefined and / or configured reference signal resources. The first information includes the first part of the parameters and the second part of the parameters. A terminal device, characterized in that, include: The processing module is configured to perform channel measurement at at least one moment based on the first information, and obtain the CSI at the at least one moment; Wherein, the first information is used to indicate the at least one time moment, the CSI at the at least one time moment is used to train the CSI model, and the CSI model is used to process the CSI. A network device, characterized in that, include: The processing module is configured to perform channel measurement at at least one moment based on the first information, and obtain the CSI at the at least one moment; Wherein, the first information is used to indicate the at least one time moment, the CSI at the at least one time moment is used to train the CSI model, and the CSI model is used to process the CSI. A communication device, characterized in that, The communication device is used to perform the communication method according to any one of claims 1 to 11. A communication system, characterized in that, The device includes a terminal device or a network device, wherein the terminal device is configured to implement the communication method of any one of claims 1 to 8 or any one of claims 10 to 11, and the network device is configured to implement the communication method of any one of claims 1 to 7 or any one of claims 9 to 11. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the communication method as described in any one of claims 1 to 11. A program product comprising at least one of a program and instructions, characterized in that: When at least one of the programs or instructions is executed by the communication device, it implements the steps of the communication method according to any one of claims 1 to 11.

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